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Basu S, Rikhi R, Arora K, Joshi V, Sharma S, Rawat A, Singh S, Suri D. Wiskott-Aldrich syndrome protein expression in female WAS carriers: A flow cytometry study from North India. Pediatr Blood Cancer 2024; 71:e30972. [PMID: 38523275 DOI: 10.1002/pbc.30972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 02/29/2024] [Accepted: 03/08/2024] [Indexed: 03/26/2024]
Abstract
INTRODUCTION Wiskott-Aldrich syndrome (WAS) is a rare X-linked inborn error of immunity characterized by microthrombocytopenia, infections, eczema, and increased predisposition to develop autoimmunity and malignancy. Flow cytometric assay for determining WAS protein (WASp) is a rapid and cost-effective tool for detecting patients. However, very few studies described WASp expression in female carriers. Most WAS carriers are clinically asymptomatic. Active screening of female family members helps identify female carriers, distinguish de novo mutations, and to select appropriate donor prior to curative stem cell transplantation. This study was undertaken to evaluate the diagnostic capability of flow cytometry-based WASp expression in peripheral blood cells to identify carriers and compare WASp expression in different blood cell lineages. PATIENTS AND METHODS Female patients, heterozygous for WAS gene, were enrolled in this study conducted at Pediatric Allergy Immunology Unit, Advanced Pediatric Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India. Flow cytometric assessment of WASp expression in lymphocytes, monocytes, and neutrophils was carried out and compared with healthy control and affected patients. The results were expressed in delta (Δ) median fluorescence intensity (MFI) as well as stain index (SI), which is the ratio of ΔMFI of patient and ΔMFI of control. RESULTS Thirteen mothers and two sisters of genetically confirmed WAS patients were enrolled in the study. All enrolled females were clinically asymptomatic and did not have microthrombocytopenia. Low WASp expression (SI < 1) was seen in lymphocytes and monocytes in 10 (66.6%) carriers. Females with variants in proximal exons (exons 1 and 2) were found to have lesser expression than those with distal (exons 3-12) variants. CONCLUSION Flow cytometry is a rapid, easily available, cost-effective tool for WASp estimation. Lymphocytes followed by monocytes are the best cell lineages for WASp estimation in carrier females. However, genetic testing remains the gold standard, as carrier females with variants in distal exons may have normal WASp expression.
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Affiliation(s)
- Suprit Basu
- Allergy Immunology Unit, Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Rashmi Rikhi
- Allergy Immunology Unit, Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Kanika Arora
- Allergy Immunology Unit, Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Vibhu Joshi
- Allergy Immunology Unit, Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Saniya Sharma
- Allergy Immunology Unit, Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Amit Rawat
- Allergy Immunology Unit, Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Surjit Singh
- Allergy Immunology Unit, Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Deepti Suri
- Allergy Immunology Unit, Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
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Machhua S, Sharma SK, Minz RW, Pandey SK, Jindal A, Rawat A, Jindal AK. Heterozygous RAD50 gene variant in a family with systemic sclerosis suggests role of impaired DNA repair mechanisms in disease pathogenesis. Clin Exp Dermatol 2024; 49:543-546. [PMID: 38060685 DOI: 10.1093/ced/llad440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 11/21/2023] [Accepted: 11/29/2023] [Indexed: 04/24/2024]
Abstract
In this study, a heterozygous nonsense variant in exon 21 (c.3229C>T; p.Arg1077*) of RAD50 was identified in a family with members with multiple systemic sclerosis (SSc), suggesting its significance in the disease's pathogenesis. RAD50 encodes a protein critical for DNA repair and is central in the DNA damage response/repair (DDR/R) network. The RAD50 variant might be the possible cause of familial cases of diffuse cutaneous SSc, implicating genomic instability because of a defective DDR/R network as a potential mechanism.
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Affiliation(s)
- Sanghamitra Machhua
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre
| | | | | | | | - Arvind Jindal
- Department of Anaesthesia, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Amit Rawat
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre
| | - Ankur Kumar Jindal
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre
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Basu S, Goel S, Rawat A, Vignesh P, Saikia B. An Indian Family with Autosomal Dominant Hyper-IgE Syndrome Due to IL6ST Defect. J Clin Immunol 2024; 44:90. [PMID: 38578568 DOI: 10.1007/s10875-024-01695-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 03/22/2024] [Indexed: 04/06/2024]
Affiliation(s)
- Suprit Basu
- Allergy Immunology Unit, Department of Pediatrics, World Health Organization Collaborating Centre for Education, Research, and Training in Pediatric Immunology (2022-2026), Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Shubham Goel
- Department of Immunopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Amit Rawat
- Allergy Immunology Unit, Department of Pediatrics, World Health Organization Collaborating Centre for Education, Research, and Training in Pediatric Immunology (2022-2026), Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Pandiarajan Vignesh
- Allergy Immunology Unit, Department of Pediatrics, World Health Organization Collaborating Centre for Education, Research, and Training in Pediatric Immunology (2022-2026), Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India.
| | - Biman Saikia
- Department of Immunopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India.
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Lokesh MN, Kumar R, Jacob N, Sachdeva N, Rawat A, Yadav J, Dayal D. Supplementation of High-Strength Oral Probiotics Improves Immune Regulation and Preserves Beta Cells among Children with New-Onset Type 1 Diabetes Mellitus: A Randomised, Double-Blind Placebo Control Trial. Indian J Pediatr 2024:10.1007/s12098-024-05074-5. [PMID: 38557820 DOI: 10.1007/s12098-024-05074-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 01/24/2024] [Indexed: 04/04/2024]
Abstract
OBJECTIVES To investigate the mechanism of glycemic control in children with type 1 diabetes (T1D) following high-strength probiotics supplementation by assessing immune-regulatory markers. METHODS In this single-centre randomised double-blinded placebo-controlled study, children with new-onset T1D on regular insulin therapy were randomised into probiotic or placebo groups with 30 children each. The probiotics group received oral powder of Vivomixx®, and the placebo group received corn starch for six months. The primary outcome parameters included induced T regulatory cells (i-Tregs) percentage, insulin autoantibodies (IAA), insulinoma associated 2 autoantibodies (IA2), glutamic acid decarboxylase autoantibodies (GAD 65) and plasma interleukin-10 (IL-10) levels. The secondary outcome variables were changes in plasma C-peptide levels and glycemic control parameters. RESULTS Twenty-three children in the placebo group and 27 in the probiotic group completed the study. There was a significant increase in the percentage of iTregs (3.40 in the probiotic vs. 2.46 in the placebo group; p = 0.034). Median glycated hemoglobin (HbA1c) levels significantly decreased from 68 mmol/mol (8.35%) in the placebo group to 60 mmol/mol (7.55%) in the probiotic group (p = 0.017). Median C-peptide levels were significantly higher in probiotics (0.72 ng/ml) vs. placebo group (0.11 ng/ml) (p = 0.036). The plasma IL-10 levels significantly increased in the probiotic group after six months of treatment (p = 0.002). CONCLUSIONS The high-strength probiotics improved the immunoregulatory milieu, thereby preserving the beta-cell function and better glycemic control.
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Affiliation(s)
- M N Lokesh
- Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, 160012, India
| | - Rakesh Kumar
- Endocrinology and Diabetes Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research (PGIMER), Sector 12, Chandigarh, 160012, India.
| | - Neenu Jacob
- Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, 160012, India
| | - Naresh Sachdeva
- Department of Endocrinology, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, 160012, India
| | - Amit Rawat
- Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, 160012, India
| | - Jaivinder Yadav
- Endocrinology and Diabetes Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research (PGIMER), Sector 12, Chandigarh, 160012, India
| | - Devi Dayal
- Endocrinology and Diabetes Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research (PGIMER), Sector 12, Chandigarh, 160012, India
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Kumar Jindal A, Basu S, Tyagi R, Barman P, Sil A, Chawla S, Kaur A, Tyagi R, Jangra I, Machhua S, Sendhil Kumaran M, Dogra S, Vinay K, Bishnoi A, Sharma R, Garg R, Saka R, Suri D, Pandiarajan V, Pilania R, Dhaliwal M, Sharma S, Rawat A, Singh S. Delay in diagnosis is the most important proximate reason for mortality in hereditary angio-oedema: our experience at Chandigarh, India. Clin Exp Dermatol 2024; 49:368-374. [PMID: 38039144 DOI: 10.1093/ced/llad428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 11/20/2023] [Accepted: 11/21/2023] [Indexed: 12/03/2023]
Abstract
BACKGROUND Hereditary angio-oedema (HAE) is a rare autosomal dominant disorder characterized clinically by recurrent episodes of nonpruritic subcutaneous and/or submucosal oedema. Laryngeal oedema is the commonest cause of mortality in patients with HAE. Prior to the availability of first-line treatment options for the management of HAE, mortality was as high as 30%. Mortality has significantly declined in countries where first-line treatment options are available and patients can access these therapies. There is a paucity of literature on the outcomes of patients with HAE in developing countries where availability of and access to first-line treatment options are still a challenge. OBJECTIVES To report our experience on mortality in patients with HAE and to report factors associated with the death of these patients. METHODS We carried out a record review of all patients diagnosed with HAE between January 1996 and August 2022. Families with HAE who had reported the death of at least one family member/relative from laryngeal oedema were studied in detail. RESULTS Of the 65 families (170 patients) registered in the clinic, 16 families reported the death of at least one family member/relative from laryngeal oedema (total of 36 deaths). Of these 16 families, 14 reported that 1 or more family members had experienced at least 1 attack of laryngeal oedema. One patient died during follow-up when she was taking long-term prophylaxis with stanozolol and tranexamic acid, while the remaining 35 patients were not diagnosed with HAE at the time of their death. At the time of death of all 36 patients, at least 1 other family member had symptoms suggestive of HAE, but the diagnosis was not established for the family. CONCLUSIONS To our knowledge, this is the largest single-centre cohort of patients with HAE in India reporting mortality data and factors associated with death in these families. The delay in diagnosis is the most important reason for mortality.
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Affiliation(s)
- Ankur Kumar Jindal
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Suprit Basu
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Reva Tyagi
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Prabal Barman
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Archan Sil
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Sanchi Chawla
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Anit Kaur
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Rahul Tyagi
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Isheeta Jangra
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Sanghamitra Machhua
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Muthu Sendhil Kumaran
- Department of Dermatology, Venereology and Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Sunil Dogra
- Department of Dermatology, Venereology and Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Keshavamurthy Vinay
- Department of Dermatology, Venereology and Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Anuradha Bishnoi
- Department of Dermatology, Venereology and Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Rajni Sharma
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Ravinder Garg
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Ruchi Saka
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Deepti Suri
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Vignesh Pandiarajan
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Rakesh Pilania
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Manpreet Dhaliwal
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Saniya Sharma
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Amit Rawat
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Surjit Singh
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Machhua S, Kumar Jindal A, Basu S, Jangra I, Barman P, Tyagi R, Sil A, Tyagi R, Kaur A, Chawla S, Kumaran SM, Dogra S, Dhaliwal M, Sharma S, Rawat A, Singh S. Transmission patterns of C1-INH deficiency hereditary angioedema favors a wild-type male offspring: Our experience at Chandigarh, India. Immunobiology 2024; 229:152790. [PMID: 38340462 DOI: 10.1016/j.imbio.2024.152790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 12/19/2023] [Accepted: 01/24/2024] [Indexed: 02/12/2024]
Abstract
BACKGROUND Deficiency of C1-inhibitor (C1-INH) protein, caused by pathogenic variants in the Serpin family G member 1 (SERPING1) gene, is the commonest pathophysiological abnormality (in ∼95 % cases) in patients with hereditary angioedema (HAE). C1-INH protein provides negative control over kallikrein-kinin system (KKS). Although the inheritance of the HAE-C1-INH is autosomal dominant, female predominance has often been observed in patients with HAE. OBJECTIVE To analyze the risk of transmission of SERPING1 gene variant from father or mother to their offspring. METHODS Pedigree charts of 42 families with a confirmed diagnosis of HAE-C1-INH and a pathogenic variant in the SERPING1 gene were analysed. Patients with HAE who had had at least one child were included for analyses to assess the risk of transmission from the father or mother to their offspring. RESULTS Overall, 49 % (189/385) of all offspring inherited the genetic defect. In the subgroup analyses, 54.8 % (90/164) female offspring and 44.8 % (99/221; p < 0.02) male offspring inherited the genetic defect. Inheritance of the genetic defect was significantly lower in male offspring. Fathers with SERPING1 gene variant had a statistically significant skewed transmission of the wild type to the male offspring as compared to the variant (57.8 % wild type vs. 42.1 % variant; p < 0.02), whereas no statistically significant difference was found when a father transmitted the variant to a female offspring. Mothers with SERPING1 gene variant had no statistically significant difference in variant transmission to male or female offsprings. CONCLUSION Results of the study suggest that the transmission pattern of SERPING1 gene variant favours the transmission of wild-type alleles in males, especially when the father is the carrier; hence, overall, fewer males and more female offspring inherited the variant. This could be because of a selection of wild-type male sperms during spermatogenesis, as the KLK system has been reported to play a crucial role in the regulation of spermatogenesis. Although, a similar pattern was observed in the maternal transmission of the SERPING1 gene variant; the difference was not statistically significant, likely because of a small sample size.
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Affiliation(s)
- Sanghamitra Machhua
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Ankur Kumar Jindal
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India.
| | - Suprit Basu
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Isheeta Jangra
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Prabal Barman
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Rahul Tyagi
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Archan Sil
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Reva Tyagi
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Anit Kaur
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Sanchi Chawla
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Sendhil M Kumaran
- Department of Dermatology, Venereology and Leprology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Sunil Dogra
- Department of Dermatology, Venereology and Leprology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Manpreet Dhaliwal
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Saniya Sharma
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Amit Rawat
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Surjit Singh
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
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Sil A, Basu S, Joshi V, Pilania RK, Siniah S, Suri D, Rawat A, Singh S. Immunoglobulin replacement therapies in inborn errors of immunity: a review. Front Pediatr 2024; 12:1368755. [PMID: 38425666 PMCID: PMC10902166 DOI: 10.3389/fped.2024.1368755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 01/26/2024] [Indexed: 03/02/2024] Open
Abstract
Immunoglobulins (Ig) were used as a therapeutic modality for the first time in a patient with X-linked agammaglobulinemia in 1952 by Colonel Ogden Bruton, decades before the molecular mechanisms causing the disease were unraveled. In many autoimmune and inflammatory illnesses, human immunoglobulin has been employed as a significant immunomodulatory and immunosuppressive drug. In patients with inborn errors of immunity (IEI), immunoglobulin remains a cornerstone of management. IEIs are notable causes of recurrent infections and autoimmunity due to inheritable single-gene defects in genes encoding for different components of the immune system. As there is decreased immunoglobulin production in IEIs with antibody defects, immunoglobulin replacement is the mainstay of therapy in these disorders. Although serum immunoglobulin levels may not be low in combined immune defects, immunoglobulin replacement is still necessary in these disorders due to a deficiency of functional antibodies and qualitative defects of immunoglobulins. Commercial immunoglobulin preparations are generated from plasma donated by thousands of donors. Immunoglobulin preparations are usually available in two forms: intravenous and subcutaneous immunoglobulins. In the developed world, both intravenous immunoglobulin (IVIg) and subcutaneous immunoglobulin (SCIg) are available, and SCIg is preferred over IVIg for replacement therapy in patients with IEIs. In developing countries, IVIg remains the mainstay of replacement therapy. The rate of adverse events has significantly reduced over the last few years due to advancements in the production process. In this review article, we discuss different aspects of the use of Ig (indications, dosing, mechanism of action, route, adverse effects) in patients with IEIs.
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Affiliation(s)
| | | | | | - Rakesh Kumar Pilania
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Kumar Jindal A, Sil A, Aggarwal R, Tyagi R, Mondal S, Singh A, Barman P, Chawla S, Loganathan SK, Gupta K, Vinay K, Mahajan R, Saikia B, Kaur G, Sharma R, Saka R, Bhatia A, Sankhyan N, Pandiarajan V, Pilania R, Dhaliwal M, Sharma S, Vyas S, Suri D, Rawat A, Singh S. Clinical, immunological and molecular profiles of DOCK8 deficiency in six patients from a tertiary care centre in North India. Clin Exp Dermatol 2024; 49:226-234. [PMID: 37815217 DOI: 10.1093/ced/llad345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 09/23/2023] [Accepted: 10/03/2023] [Indexed: 10/11/2023]
Abstract
BACKGROUND Dedicator of cytokinesis protein 8 (DOCK8) deficiency is an autosomal recessive form of combined immunodeficiency. This rare disorder is characterized by an increased predisposition to allergy, autoimmunity and malignancies. OBJECTIVES To analyse clinical, immunological and molecular profiles of patients with DOCK8 deficiency. METHODS Clinic records of all patients attending the primary immunodeficiency clinic from 2018 to 2021 were reviewed. Six patients from five families were found to have DOCK8 deficiency. RESULTS Median age at diagnosis was 7.5 years (range 2-13), with a male/female ratio of 5 : 1. Among the six patients, recurrent eczematous skin lesions were the predominant cutaneous manifestation, present in five patients (83%). Warts and molluscum contagiosum were evident in two patients (33%) and one patient (16%), respectively. Two patients had recalcitrant prurigo nodularis lesions and two had epidermodysplasia verruciformis-like lesions. Food allergies and asthma were reported by one patient each. Of the six patients, recurrent sinopulmonary infections were detected in five (83%). Epstein-Barr virus-driven non-Hodgkin lymphoma with liver metastases was the only case of malignancy, in a 4-year-old boy. IgE was elevated in all patients. Lymphopenia and eosinophilia were observed in three patients (50%) and five patients (83.3%), respectively. Genetic analysis showed DOCK8 pathogenic variants in all patients: homozygous deletion mutations in two patients, compound heterozygous deletion mutations in one, and homozygous nonsense mutations in two. A novel pathogenic homozygous missense variant in the DOCK8 gene was identified in one patient. CONCLUSIONS DOCK8 deficiency should be considered as a possibility in any patient with early onset eczema, cutaneous viral infections and increased predisposition to allergy, autoimmunity and malignancy.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Anmol Bhatia
- Department of Radiodiagnosis and Imaging, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Naveen Sankhyan
- Paediatric Neurology Unit, Department of Paediatrics, Advanced Paediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | | | | | | | | | - Sameer Vyas
- Department of Radiodiagnosis and Imaging, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Sil A, Thangaraj A, Patro D, Bathia JN, Rao AP, Pal P, Vignesh P, Rawat A. Early Onset Polyarthritis: An Unusual Presentation of MHC Class II Deficiency. Rheumatology (Oxford) 2024:keae102. [PMID: 38335932 DOI: 10.1093/rheumatology/keae102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 01/28/2024] [Accepted: 02/01/2024] [Indexed: 02/12/2024] Open
Affiliation(s)
- Archan Sil
- Allergy Immunology Unit, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Abarna Thangaraj
- Allergy Immunology Unit, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Debasis Patro
- Department of Pediatrics, IMS and SUM Hospital, Bhubaneswar, India
| | - Jigna N Bathia
- Pediatric Rheumatology, Institute of Child Health, Kolkata, India
| | - Anand P Rao
- Pediatric Rheumatology Clinic, Manipal Hospital and Indira Gandhi Institute of Child Health, Bengaluru, India
| | - Priyankar Pal
- Pediatric Rheumatology, Institute of Child Health, Kolkata, India
| | - Pandiarajan Vignesh
- Allergy Immunology Unit, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Amit Rawat
- Allergy Immunology Unit, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
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Narayan V, Kumar M, Mahajan S, Ganesh V, Luthra A, Gupta T, Rawat A, Singh A, Vyas S, Narayanan V, Depuru A, Kaur K, Panda N, Bhagat H. The Role of Serum Matrix Metalloproteinase-9 as a Predictor of Delayed Cerebral Ischemia in Patients with Aneurysmal Subarachnoid Hemorrhage. J Mol Neurosci 2024; 74:18. [PMID: 38315311 DOI: 10.1007/s12031-024-02194-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 01/26/2024] [Indexed: 02/07/2024]
Abstract
Delayed cerebral ischemia (DCI) is one of the major causes of a poor neurological outcome following aneurysmal subarachnoid hemorrhage (aSAH). Several biomarkers, including matrix metalloproteinase-9 (MMP-9), have been evaluated to predict the development of DCI for timely management. This prospective cohort study was done on 98 patients with aSAH presenting within 72 h of the ictus. Serum samples were collected preoperatively, 7 days after ictus, 10 days after ictus, or when the patient developed DCI, whichever was earlier. The primary objective was to correlate the serum MMP-9 levels with the development of DCI. The secondary objectives were to correlate the serum MMP-9 levels with sonographic vasospasm and the neurological outcome. There was no correlation between the serum MMP-9 levels and the development of DCI (p = 0.37). Similarly, there was no correlation between the serum MMP-9 levels and the sonographic vasospasm (0.05) nor with the modified Rankin Scale (mRS) at discharge (p = 0.27), mRS at 3 months (p = 0.22), and Glasgow Outcome Scale Extended (GOSE) at 3 months (p = 0.15). Serum MMP-9 levels do not predict the development of DCI following aSAH.
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Affiliation(s)
- Vinitha Narayan
- Department of Anesthesia and Intensive Care 4th Floor, Nehru Hospital PGIMER, Sector 12, Chandigarh, 160012, India
| | - Munish Kumar
- Department of Anesthesia and Intensive Care 4th Floor, Nehru Hospital PGIMER, Sector 12, Chandigarh, 160012, India
| | - Shalvi Mahajan
- Department of Anesthesia and Intensive Care 4th Floor, Nehru Hospital PGIMER, Sector 12, Chandigarh, 160012, India
| | - Venkata Ganesh
- Department of Anesthesia and Intensive Care 4th Floor, Nehru Hospital PGIMER, Sector 12, Chandigarh, 160012, India
| | - Ankur Luthra
- Department of Anesthesia and Intensive Care 4th Floor, Nehru Hospital PGIMER, Sector 12, Chandigarh, 160012, India
| | - Tulika Gupta
- Department of Anatomy, PGIMER, Chandigarh, India
| | - Amit Rawat
- Department of Pediatric Immunology, PGIMER, Chandigarh, India
| | | | - Sameer Vyas
- Department of Radiodiagnosis, PGIMER, Chandigarh, India
| | - Vidhya Narayanan
- Department of Anesthesia, Sree Balaji Medical College and Hospital, Chennai, Tamil Nadu, India
| | | | - Kirandeep Kaur
- Department of Anesthesia and Intensive Care 4th Floor, Nehru Hospital PGIMER, Sector 12, Chandigarh, 160012, India
| | - Nidhi Panda
- Department of Anesthesia and Intensive Care 4th Floor, Nehru Hospital PGIMER, Sector 12, Chandigarh, 160012, India
| | - Hemant Bhagat
- Department of Anesthesia and Intensive Care 4th Floor, Nehru Hospital PGIMER, Sector 12, Chandigarh, 160012, India.
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Kumrah R, Goyal T, Rawat A, Singh S. Markers of Endothelial Dysfunction in Kawasaki Disease: An Update. Clin Rev Allergy Immunol 2024; 66:99-111. [PMID: 38462555 DOI: 10.1007/s12016-024-08985-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/27/2024] [Indexed: 03/12/2024]
Abstract
Kawasaki disease (KD) is a medium vessel vasculitis that has a special predilection for coronary arteries. Cardiovascular complications include the development of coronary artery abnormalities (CAAs) and myocarditis. Endothelial dysfunction (ED) is now recognized to be a key component in the pathogenesis of KD and is believed to contribute to the development of CAAs. ED has been evaluated by several clinical parameters. However, there is paucity of literature on laboratory markers for ED in KD. The evaluation of ED can be aided by the identification of biomarkers such as oxidative stress markers, circulating cells and their progenitors, angiogenesis factors, cytokines, chemokines, cell-adhesion molecules, and adipokines. If validated in multicentric studies, these biomarkers may be useful for monitoring the disease course of KD. They may also provide a useful predictive marker for the development of premature atherosclerosis that is often a concern during long-term follow-up of KD. This review provides insights into the current understanding of the significance of ED in KD.
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Affiliation(s)
- Rajni Kumrah
- Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Taru Goyal
- Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Amit Rawat
- Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
| | - Surjit Singh
- Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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12
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Jindal AK, Chiang V, Barman P, Sil A, Chawla S, Au EY, Rawat A, Li PH. Screening for type II hereditary angioedema-the "poor man's c1-inhibitor function". J Allergy Clin Immunol Glob 2024; 3:100179. [PMID: 38026504 PMCID: PMC10661124 DOI: 10.1016/j.jacig.2023.100179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 07/31/2023] [Accepted: 09/10/2023] [Indexed: 12/01/2023]
Abstract
Background Hereditary angioedema (HAE) is a rare genetic disease. Patients with type II HAE have normal or elevated C1-inhibitor (C1-INH) levels but C1-INH protein is dysfunctional. C1-INH function requires careful sample handling and technical expertise and may account for the lack of diagnosed patients with type II HAE in resource-limited countries. Objective We sought to assess the diagnostic performance of elevated C1-INH levels in diagnosing type II HAE. Methods All patients with confirmed type II HAE in Hong Kong and India were analyzed. Diagnosis was confirmed by persistent low C1-INH function and/or pathogenic SERPING1 gene mutations. Their C1-INH levels were compared with those of matched controls. Results A total of 31 (14 Chinese, 17 Indian) patients with type II HAE and 31 matched controls were analyzed. Overall, 77.4% (24/31) of patients with type II HAE had elevated C1-INH levels compared with 38.7% (12 of 31) of controls (odds ratio, 2.00; 95% CI, 1.34-2.98; P = .017). C1-INH levels in patients with type II HAE were significantly higher than in controls (52.2 ± 20.0 mg/dL vs 29.1 ±3.6 mg/dL; P < .001). Findings were consistent when C1-INH values in the Chinese and Indian subgroups were analyzed separately. Receiver-operating characteristic curve demonstrated excellent performance for elevated C1-INH levels to diagnose patients with type II HAE with an area under the curve of 0.953 (95% CI, 0.941-0.992; P < .001). Positive and negative predictive values of both a low C4 and an elevated C1-INH level for patients with type II HAE were 100% and 82.9%, respectively. Conclusions Low C4 and elevated C1-INH levels may be considered as a screening tool for type II HAE, especially in countries where C1-INH function testing is not readily available.
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Affiliation(s)
- Ankur Kumar Jindal
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Valerie Chiang
- Division of Clinical Immunology, Department of Pathology, Pokfulam, Hong Kong
| | - Prabal Barman
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Archan Sil
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Sanchi Chawla
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Elaine Y.L. Au
- Division of Clinical Immunology, Department of Pathology, Pokfulam, Hong Kong
| | - Amit Rawat
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Philip H. Li
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Queen Mary Hospital, University of Hong Kong, Pokfulam, Hong Kong
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Nair A, Sankhyan N, Sukhija J, Saini AG, Vyas S, Suthar R, Sahu JK, Rawat A. Clinical outcomes and Anti-MOG antibodies in pediatric optic neuritis: A prospective observational study. Eur J Paediatr Neurol 2024; 49:1-5. [PMID: 38271780 DOI: 10.1016/j.ejpn.2024.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 11/04/2023] [Accepted: 01/09/2024] [Indexed: 01/27/2024]
Abstract
OBJECTIVES The objective of this study was to look at the clinical outcomes, and to determine the proportion of children with visual recovery after the first demyelinating event of optic neuritis (ON). METHODOLOGY In this observational study, children with the first clinical event of optic neuritis at an age less than 18 years were evaluated. High-contrast visual acuity, colour vision, Expanded Disability Status Scale (EDSS), Anti-MOG and AQP-4 antibodies were assessed. RESULTS Of the 55 screened, 45 children (77 eyes), median age-98 months, 30 (67%) bilateral were enrolled. Fifty of 77 eyes (67%) had Snellen visual acuity less than 6/60. Twelve children (27%) were MOG seropositive and 3 had AQP-4 positivity. At median follow up of 35 months, 10 (22%) children had one or more relapses. At follow up, the median (IQR) visual acuity improved from nadir of 2.1 (1-2.7) logMAR to 0 (0-0.18) logMAR and 64/77 eyes (83%) had visual recovery. The diagnosis at last follow up was isolated ON in 39/45 (86.6%), relapsing ON (5, 11%), AQP-4 positive NMOSD (3, 7%), MOG antibody associated demyelination (12, 27%), dual seronegative ON (30,67%) and Multiple sclerosis (1, 2%). CONCLUSIONS Most children with first demyelinating event as ON have a monophasic illness. Despite severe acute-phase visual loss, most eyes with ON will recover good visual functions. The risk of AQP-4 disease and multiple sclerosis is low in this group.
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Affiliation(s)
- Abhirami Nair
- Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
| | - Naveen Sankhyan
- Pediatric Neurology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
| | - Jaspreet Sukhija
- Department of Ophthalmology, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
| | - Arushi Gahlot Saini
- Pediatric Neurology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
| | - Sameer Vyas
- Department of Radiodiagnosis, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
| | - Renu Suthar
- Pediatric Neurology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
| | - Jitendra Kumar Sahu
- Pediatric Neurology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
| | - Amit Rawat
- Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
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14
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Jindal AK, Mondal S, Sil A, Rawat A, Chawla S, Tyagi R, Sudhakar M, Banday AZ, Suri D, Vignesh P, Dhaliwal M, Sharma S, Rikhi R, Saka R, Sharma R, Chatterjee D, Sreedharanunni S, Uppuluri R, Raj R, Singh S. X-Linked Lymphoproliferative Syndrome: A Spectrum of Clinical and Immunological Profile and Novel Pathogenic Variants from Chandigarh, India. Int Arch Allergy Immunol 2024; 185:370-381. [PMID: 38194943 DOI: 10.1159/000531296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 05/19/2023] [Indexed: 01/11/2024] Open
Abstract
INTRODUCTION X-linked lymphoproliferative syndrome (XLP) is a rare primary immune deficiency. Two types of XLP have been described: XLP-1 and XLP-2. METHODS We found 7 patients with XLP (3 had XLP-1 and 4 had XLP-2) after reviewing the data from Pediatric Immunodeficiency Clinic from 1997 to 2021. RESULTS Mean age at diagnosis was 3.8 years, and mean delay in diagnosis was 2.6 years. Five patients had recurrent episodes of infections. Four patients developed at least one episode of hemophagocytic lymphohistiocytosis (HLH) (2 with XLP-1 and 2 with XLP-2). Of these, 2 had recurrent HLH (both with XLP-2). Epstein-Barr virus (EBV) infection was detected in 2 (1 with XLP-1 and 1 with XLP-2). Both these patients had HLH. One child with XLP-2 had inflammatory bowel disease. Hypogammaglobulinemia was seen in 3 (2 with XLP-1 and 1 with XLP-2). Genetic analysis showed previously reported variants in 5, while 2 had novel variants (one in exon 7 of XIAP gene [c.1370dup p.Asn457Lysfs Ter16] and other had splice site variant in intron 1 of SH2D1A gene [c.138-2_138-1insG]). Episodes of HLH were managed with intravenous immunoglobulin (IVIg), methylprednisolone, oral prednisolone, cyclosporine, and rituximab. Inflammatory bowel disease was managed using oral prednisolone and azathioprine. One patient underwent haploidentical hematopoietic stem cell transplantation. One child with XLP-2 and WAS died because of fulminant pneumonia. DISCUSSION/CONCLUSIONS XLP should be considered as a strong possibility in any patient with features of HLH, repeated infections with hypogammaglobulinemia, persistent EBV infection, and early-onset IBD.
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Affiliation(s)
- Ankur Kumar Jindal
- Allergy Immunology Unit, Department of Paediatrics, Advanced Paediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Sanjib Mondal
- Allergy Immunology Unit, Department of Paediatrics, Advanced Paediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Archan Sil
- Allergy Immunology Unit, Department of Paediatrics, Advanced Paediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India,
| | - Amit Rawat
- Allergy Immunology Unit, Department of Paediatrics, Advanced Paediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Sanchi Chawla
- Allergy Immunology Unit, Department of Paediatrics, Advanced Paediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Rahul Tyagi
- Allergy Immunology Unit, Department of Paediatrics, Advanced Paediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Murugan Sudhakar
- Allergy Immunology Unit, Department of Paediatrics, Advanced Paediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Aaqib Zaffar Banday
- Allergy Immunology Unit, Department of Paediatrics, Advanced Paediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Deepti Suri
- Allergy Immunology Unit, Department of Paediatrics, Advanced Paediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Pandiarajan Vignesh
- Allergy Immunology Unit, Department of Paediatrics, Advanced Paediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Manpreet Dhaliwal
- Allergy Immunology Unit, Department of Paediatrics, Advanced Paediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Saniya Sharma
- Allergy Immunology Unit, Department of Paediatrics, Advanced Paediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Rashmi Rikhi
- Allergy Immunology Unit, Department of Paediatrics, Advanced Paediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Ruchi Saka
- Allergy Immunology Unit, Department of Paediatrics, Advanced Paediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Rajni Sharma
- Allergy Immunology Unit, Department of Paediatrics, Advanced Paediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Debajyoti Chatterjee
- Department of Histopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Sreejesh Sreedharanunni
- Department of Haematology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Ramya Uppuluri
- Department of Pediatric Hematology Oncology and Bone Marrow Transplant, Kanchi Kamakoti Childs Trust Hospital, Chennai, India
| | - Revathi Raj
- Department of Pediatric Hematology Oncology and Bone Marrow Transplant, Kanchi Kamakoti Childs Trust Hospital, Chennai, India
| | - Surjit Singh
- Allergy Immunology Unit, Department of Paediatrics, Advanced Paediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Basu S, Barman P, Das J, Kabeerdoss J, Attri SV, Mahajan R, Vignesh P, Rawat A. Expanding the clinical and immunological phenotype of prolidase deficiency: A case report. Pediatr Dermatol 2024; 41:115-118. [PMID: 37574707 DOI: 10.1111/pde.15413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 07/30/2023] [Indexed: 08/15/2023]
Abstract
Prolidase deficiency (PD) is a rare autosomal recessive disorder associated with recurrent infections, immune dysregulation, and autoimmunity. PD is characterized by persistent dermatitis, skin fragility, and non-healing ulcerations on the lower limbs as its main dermatologic characteristics. Herein, we report a boy with PD due to a novel variant in PEPD who had abnormal facies, cognitive impairment, corneal opacity, recurrent infections, and persistent non-healing leg ulcers. Th17 lymphocyte counts and phosphorylated-STAT5 expression following IL-2 stimulation were reduced in our patient as compared to healthy control.
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Affiliation(s)
- Suprit Basu
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Prabal Barman
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Jhumki Das
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Jayakanthan Kabeerdoss
- Pediatric Biochemistry Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Savita Verma Attri
- Pediatric Biochemistry Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Rahul Mahajan
- Department of Dermatology, Venereology and Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Pandiarajan Vignesh
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Amit Rawat
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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16
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Dhaliwal M, Muthu V, Sharma A, Raj K, Rudramurthy SM, Agarwal R, Kaur H, Rawat A, Singh S, Chakrabarti A. Immune and metabolic perturbations in COVID-19-associated pulmonary mucormycosis: A transcriptome analysis of innate immune cells. Mycoses 2024; 67:e13679. [PMID: 38214399 DOI: 10.1111/myc.13679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 11/23/2023] [Indexed: 01/13/2024]
Abstract
BACKGROUND AND OBJECTIVES The mechanisms underlying COVID-19-associated pulmonary mucormycosis (CAPM) remain unclear. We use a transcriptomic analysis of the innate immune cells to investigate the host immune and metabolic response pathways in patients with CAPM. PATIENTS AND METHODS We enrolled subjects with CAPM (n = 5), pulmonary mucormycosis (PM) without COVID-19 (n = 5), COVID-19 (without mucormycosis, n = 5), healthy controls (n = 5) without comorbid illness and negative for SARS-CoV-2. Peripheral blood samples from cases were collected before initiating antifungal therapy, and neutrophils and monocytes were isolated. RNA sequencing was performed using Illumina HiSeqX from monocytes and neutrophils. Raw reads were aligned with HISAT-2 pipeline and DESeq2 was used for differential gene expression. Gene ontology (GO) and metabolic pathway analysis were performed using Shiny GO application and R packages (ggplot2, Pathview). RESULTS The derangement of core immune and metabolic responses in CAPM patients was noted. Pattern recognition receptors, dectin-2, MCL, FcRγ receptors and CLEC-2, were upregulated, but signalling pathways such as JAK-STAT, IL-17 and CARD-9 were downregulated; mTOR and MAP-kinase signalling were elevated in monocytes from CAPM patients. The complement receptors, NETosis, and pro-inflammatory responses, such as S100A8/A9, lipocalin and MMP9, were elevated. The major metabolic pathways of glucose metabolism-glycolysis/gluconeogenesis, pentose phosphate pathway, HIF signalling and iron metabolism-ferroptosis were also upregulated in CAPM. CONCLUSIONS We identified significant alterations in the metabolic pathways possibly leading to cellular iron overload and a hyperglycaemic state. Immune responses revealed altered recognition, signalling, effector functions and a pro-inflammatory state in monocytes and neutrophils from CAPM patients.
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Affiliation(s)
- Manpreet Dhaliwal
- Department of Paediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Valliappan Muthu
- Department of Pulmonary Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Arunima Sharma
- Department of Medical Microbiology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Khem Raj
- Department of Microbiology, Panjab University, Chandigarh, India
| | - Shivaprakash M Rudramurthy
- Department of Medical Microbiology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Ritesh Agarwal
- Department of Pulmonary Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Harsimran Kaur
- Department of Medical Microbiology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Amit Rawat
- Department of Paediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Surjit Singh
- Department of Paediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Arunaloke Chakrabarti
- Department of Medical Microbiology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Staines-Boone AT, Vignesh P, Tsumura M, de la Garza Fernández G, Tyagi R, Rawat A, Das J, Tomomasa D, Asano T, Hijikata A, Salazar-Gálvez Y, Kanegane H, Okada S, Reyes SOL. Fatal COVID-19 Infection in Two Children with STAT1 Gain-of-Function. J Clin Immunol 2023; 44:20. [PMID: 38129739 DOI: 10.1007/s10875-023-01634-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 11/28/2023] [Indexed: 12/23/2023]
Abstract
While SARS-CoV-2 infection causes a mild disease in most children, SARS-CoV-2 infection may be lethal in a few of them. In the defense against SARS-CoV-2, type I interferons are key players, and several studies have identified a defective or neutralized interferon response as the cause of overwhelming viral infection. However, inappropriate, untimely, or excessive interferon production may also be detrimental to the host. Here, we describe two patients with STAT1 gain-of-function (GOF), a known type I interferonopathy, who died of COVID-19. Whole-exome sequencing and interferon-gamma-activated sequence (GAS) and interferon-sensitive responsive element (ISRE) reporter assay were performed to identify and characterize STAT1 variants. Patient 1 developed hemophagocytic lymphohistiocytosis (HLH) in the context of COVID-19 infection and died in less than a week at the age of 4 years. Patient 2 developed a high fever, cough, and hypoxemia and succumbed to COVID-19 pneumonia at the age of 5 years. Two heterozygous missense variants, p.E563Q and p.K344E, in STAT1 were identified. Functional validation by reporter assay and immunoblot confirmed that both variants are gain-of-function (GOF). GOF variants transiently expressing cells exhibited enhanced upregulation of downstream genes, including ISG15, MX1, and OAS1, in response to IFN-α stimulation. A catastrophic course with HLH or acute respiratory failure is thought to be associated with inappropriate immunoregulatory mechanisms to handle SARS-CoV-2 in STAT1 GOF. While most patients with inborn errors of immunity who developed COVID-19 seem to handle it well, these cases suggest that patients with STAT1-GOF might be at risk of developing fatal complications due to SARS-CoV-2.
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Affiliation(s)
- Aidé Tamara Staines-Boone
- Immunology Service at Hospital de Especialidades UMAE 25 Mexican Social Security, Institute (IMSS), Monterrey, Mexico
| | - Pandiarajan Vignesh
- Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India.
| | - Miyuki Tsumura
- Department of Pediatrics, Hiroshima University Graduate School of Biomedical and Health Science, Hiroshima, Japan
| | - Germán de la Garza Fernández
- Immune Deficiencies Laboratory at the National Institute of Pediatrics, Health Secretariat, Av Iman 1, Piso 9 Torre de Investigación, Col. Insurgentes Cuicuilco, Coyoacán, 04530, Mexico City, CDMX, Mexico
| | - Reva Tyagi
- Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Amit Rawat
- Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Jhumki Das
- Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Dan Tomomasa
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Takaki Asano
- Department of Pediatrics, Hiroshima University Graduate School of Biomedical and Health Science, Hiroshima, Japan
| | - Atsushi Hijikata
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
| | - Yuridia Salazar-Gálvez
- Immunology Service at Hospital de Especialidades UMAE 25 Mexican Social Security, Institute (IMSS), Monterrey, Mexico
| | - Hirokazu Kanegane
- Department of Child Health and Development, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Satoshi Okada
- Department of Pediatrics, Hiroshima University Graduate School of Biomedical and Health Science, Hiroshima, Japan.
| | - Saul O Lugo Reyes
- Immune Deficiencies Laboratory at the National Institute of Pediatrics, Health Secretariat, Av Iman 1, Piso 9 Torre de Investigación, Col. Insurgentes Cuicuilco, Coyoacán, 04530, Mexico City, CDMX, Mexico.
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Aggarwal R, Pilania RK, Sharma S, Kumar A, Dhaliwal M, Rawat A, Singh S. Kawasaki disease and the environment: an enigmatic interplay. Front Immunol 2023; 14:1259094. [PMID: 38164136 PMCID: PMC10757963 DOI: 10.3389/fimmu.2023.1259094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Accepted: 12/05/2023] [Indexed: 01/03/2024] Open
Abstract
Kawasaki disease (KD) is a common systemic vasculitis of childhood. Although it has been almost 6 decades since Dr. Tomisaku Kawasaki reported the first case series of KD, the underlying cause remains a mystery. KD is a self-limiting disease. However, a dreaded complication is development of coronary artery abnormalities (CAAs). KD is the most common cause of acquired heart disease in children in the developed world and is being increasingly reported from developing countries too. Over the years, significant observations have been made about epidemiology of KD. It usually affects children below 5, has male preponderance and has significantly higher incidence in North East Asian countries. While several hypotheses have been proffered for etiology of KD, none have been conclusive. These include associations of KD epidemics in Japan and the United Stated with changes in tropospheric wind patterns suggesting wind-borne agents, global studies showing peaks of incidence related to season, and increased rates in populations with a higher socioeconomic profile related to hygiene hypothesis and vaccination. Furthermore, the self-limiting, febrile nature of KD suggests an infectious etiology, more so with sudden decline noted in cases in Japan with onset of COVID-19 mitigation measures. Finally, single nucleotide polymorphisms have been identified as possible risk alleles in patients with KD and their significance in the pathogenesis of this disease are also being defined. The purpose of this review is to elucidate the puzzling associations of KD with different environmental factors. Looking at patterns associated with KD may help us better predict and understand this disease.
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Affiliation(s)
| | - Rakesh Kumar Pilania
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
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Rautela KS, Kumar D, Khati BS, Rawat A, Dubey AK. Multivariate statistical analysis to assess the surface water quality of a snow and glacier-fed river: A case from Alaknanda River basin. Water Sci Technol 2023; 88:2873-2888. [PMID: 38096075 PMCID: wst_2023_349 DOI: 10.2166/wst.2023.349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
The water quality of Himalayan rivers has declined due to human activities, untreated effluent discharge, and poor sewage and drainage systems. The current study aimed to assess the water quality of these rivers using multivariate statistical analysis throughout four seasons. The analyses of 44 surface water samples taken during the monsoon, winter, spring, and summer seasons are well within the ranges acceptable for drinking and domestic use after the sedimentation. The suspended soils and turbidity are highly correlated and affect the water quality index (WQI). The WQI of headwater streams is good during low water flow seasons and poor during high water flow seasons. This is due to the number of melting glaciers and suspended solids/turbidity. Principal component analysis shows that in all the seasons, human activities such as road-cutting projects across the river and natural causes such as intense rainfall and melting of moraine-filled glaciers both impact the WQI. The findings of this study provide important information for future research and policy decisions aimed at improving the water quality of the Himalayan rivers.
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Affiliation(s)
- Kuldeep Singh Rautela
- Department of Civil Engineering, G.B. Pant Institute of Engineering and Technology, Pauri (Garhwal) 246194, Uttarakhand, India; Department of Civil Engineering, Indian Institute of Technology Indore, Simrol, Indore 453552, Madhya Pradesh, India E-mail:
| | - Dilip Kumar
- Department of Civil Engineering, G.B. Pant Institute of Engineering and Technology, Pauri (Garhwal) 246194, Uttarakhand, India; NWDA, Ministry of Water Resources, GOI, New Delhi, India
| | - Bhishm Singh Khati
- Department of Civil Engineering, G.B. Pant Institute of Engineering and Technology, Pauri (Garhwal) 246194, Uttarakhand, India
| | - Amit Rawat
- Department of Civil Engineering, G.B. Pant Institute of Engineering and Technology, Pauri (Garhwal) 246194, Uttarakhand, India
| | - Amit Kumar Dubey
- Space Application Centre (SAC)-ISRO, Ahmadabad 380015, Gujrat, India
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20
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Basu S, Sil A, Jindal AK, Tyagi R, Arafath MY, Vyas S, Rawat A. A young boy with rash, arthritis, and developmental delay: Monogenic lupus due to DNASE2 gene defect. Int J Rheum Dis 2023; 26:2599-2602. [PMID: 37431703 DOI: 10.1111/1756-185x.14826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 12/17/2022] [Accepted: 06/27/2023] [Indexed: 07/12/2023]
Abstract
Monogenic causes are increasingly being recognized in patients with lupus, especially in early-onset disease. We herein report a boy with a novel mutation in the DNase 2 (DNASE2) gene presenting with monogenic lupus. A 6-year-old boy with a global developmental delay with microcephaly presented with chronic febrile illness with anemia, rash, polyarthritis, renal involvement, and hepatosplenomegaly. Laboratory investigations revealed positive antinuclear antibody, high anti-dsDNA antibody titers, hypocomplementemia, hypergammaglobulinemia, nephrotic range proteinuria, and diffuse proliferative glomerulonephritis. Magnetic resonance imaging of brain showed altered signal intensity in subcortical white matter in bilateral fronto-parieto-temporal lobes. Targeted next-generation sequencing revealed a novel pathogenic variant in DNASE2. He was treated with oral prednisolone, mycophenolate mofetil, cyclosporine, and hydroxychloroquine and is doing well on follow up. DNASE2 deficiency has been reported as a rare genetic cause of monogenic lupus. DNASE2 deficiency should be suspected in patients with early-onset lupus with polyarthritis, erythematous rash, and neurological involvement.
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Affiliation(s)
- Suprit Basu
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Archan Sil
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Ankur Kumar Jindal
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Rahul Tyagi
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Mohamed Yaser Arafath
- Department of Radiodiagnosis and Imaging, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Sameer Vyas
- Department of Radiodiagnosis and Imaging, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Amit Rawat
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Bharati J, Das J, Vignesh P, Jhaveri KD, Prabhahar A, Das CK, Parihar AS, Nada R, Ramachandran R, Rawat A, Kohli HS. Memory B cells predict outcome in primary podocytopathies of adults. Nephrol Dial Transplant 2023; 38:2854-2857. [PMID: 37437908 DOI: 10.1093/ndt/gfad157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Indexed: 07/14/2023] Open
Affiliation(s)
- Joyita Bharati
- Department of Nephrology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
- Glomerular Center at Northwell, Division of Kidney Diseases and Hypertension, Donald and Barbara Zucker School of Medicine, Great Neck, NY, USA
| | - Jhumki Das
- Pediatric Allergy and Immunology Unit, Advanced Pediatrics Center, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Pandiarajan Vignesh
- Pediatric Allergy and Immunology Unit, Advanced Pediatrics Center, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Kenar D Jhaveri
- Glomerular Center at Northwell, Division of Kidney Diseases and Hypertension, Donald and Barbara Zucker School of Medicine, Great Neck, NY, USA
| | - Arun Prabhahar
- Department of Nephrology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Chandan Krushna Das
- Department of Clinical Hematology and Medical Oncology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
- Department of Urology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Anita Singh Parihar
- Department of Nephrology, Feinstein Institutes for Medical Research, Northwell Health, New York, NY, USA
| | - Ritambhra Nada
- Department of Pathology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Raja Ramachandran
- Department of Nephrology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Amit Rawat
- Pediatric Allergy and Immunology Unit, Advanced Pediatrics Center, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Harbir Singh Kohli
- Department of Nephrology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
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Kaur A, Banday AZ, Dawman L, Rawat A, Tiewsoh K. Factors predicting the occurrence of disease-causing variants on next-generation sequencing in children with steroid-resistant nephrotic syndrome - implications for resource-constrained settings. Pediatr Nephrol 2023; 38:3663-3670. [PMID: 37335381 DOI: 10.1007/s00467-023-06042-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 04/25/2023] [Accepted: 05/15/2023] [Indexed: 06/21/2023]
Abstract
BACKGROUND Enhanced availability of high-throughput sequencing (at progressively reducing costs) has revolutionized the identification of monogenic SRNS. However, in resource-poor settings, it may not be possible to perform next-generation sequencing (NGS) in all children wherein monogenic SRNS is suspected. Besides, the optimal strategy of genetic evaluation (in patients with SRNS) in routine clinical practice in resource-limited settings is unknown. METHODS Patients with newly diagnosed SRNS were recruited from our center and followed up prospectively. We analyzed the factor(s) independently predicting the occurrence of disease-causing variants in these patients. RESULTS In our study, 36 children/adolescents with SRNS were included (initial steroid resistance in 53%). On targeted NGS, pathogenic/likely pathogenic variants were identified in 31% (n = 11). These included homozygous or compound heterozygous variants in the following genes: ALOX12B, COL4A3, CRB2, NPHS1, NPHS2, PLCE1, and heterozygous variant in WT1 gene. Overall, 14 variants were identified of which 5 (36%) were novel. Age of < 1 or < 2 years and presence of family history of nephrotic syndrome independently predicted the occurrence of monogenic SRNS on multivariate analysis. CONCLUSIONS While NGS-based genetic testing in SRNS is increasingly being incorporated in routine clinical practice the world over, the scenario is far from optimal in resource-limited settings. Our study highlights that resources for genetic testing in SRNS should be prioritized for patients with early age at disease onset and presence of family history. Larger studies composed of diverse multi-ethnic cohorts of patients with SRNS are required to further delineate the optimal strategy of genetic evaluation in resource-poor settings. A higher resolution version of the Graphical abstract is available as Supplementary information.
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Affiliation(s)
- Anit Kaur
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Center, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Aaqib Zaffar Banday
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Center, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Lesa Dawman
- Nephrology Unit, Department of Pediatrics, Advanced Pediatrics Center, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, 160012, India
| | - Amit Rawat
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Center, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Karalanglin Tiewsoh
- Nephrology Unit, Department of Pediatrics, Advanced Pediatrics Center, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, 160012, India.
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Vignesh P, Sil A, Aggarwal R, Laha W, Mondal S, Dhaliwal M, Sharma S, Pilania RK, Jindal AK, Suri D, Sethi S, Rawat A, Singh S. Tuberculosis and Bacillus Calmette-Guérin Disease in Patients with Chronic Granulomatous Disease: an Experience from a Tertiary Care Center in North India. J Clin Immunol 2023; 43:2049-2061. [PMID: 37721651 DOI: 10.1007/s10875-023-01581-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 09/05/2023] [Indexed: 09/19/2023]
Abstract
Chronic granulomatous disease (CGD) is a phagocytic defect characterized by recurrent bacterial and fungal infections. We report clinical profile of patients with CGD and mycobacterial infections in a cohort from North India. A review of clinical and laboratory records was carried out for patients with CGD registered at our center between 1990 and 2021. Of the 99 patients with CGD, 22 had mycobacterial infections-Mycobacterium tuberculosis and M. bovis-BCG in 11 each. Among the children with M. bovis-BCG infection, 6 had localized and 5 had disseminated BCG disease. Median age at onset of symptoms and diagnosis of BCG disease was 5 months and 15 months, respectively. While disseminated forms of BCG were noted only in CYBB defect, none of the patients with NCF1 defect developed complications due to BCG vaccine. A recurring radiological feature was left axillary lymph node calcification, which was present in around 50% of CGD patients with BCG infections. Of 11 patients with tuberculosis, pulmonary, pleuro-pulmonary, abdominal, and disseminated forms were present in 6, 1, 2, and 2, respectively. Median age at onset of symptoms and diagnosis of tuberculosis was 129 months and 130 months, respectively. Molecular defects were identified in CYBB (5), NCF1 (4), and CYBA (1). Incidence of tuberculosis and BCG-related complications in patients with CGD is higher than the normal population. Screening for CGD is warranted in any patient with adverse reactions to BCG vaccination, calcification of left axillary lymph node, and persistent, recurrent or disseminated forms of tuberculosis.
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Affiliation(s)
- Pandiarajan Vignesh
- Allergy Immunology Unit, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India.
| | - Archan Sil
- Allergy Immunology Unit, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Ridhima Aggarwal
- Allergy Immunology Unit, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Wrik Laha
- Allergy Immunology Unit, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Sanjib Mondal
- Allergy Immunology Unit, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Manpreet Dhaliwal
- Allergy Immunology Unit, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Saniya Sharma
- Allergy Immunology Unit, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Rakesh Kumar Pilania
- Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Ankur Kumar Jindal
- Allergy Immunology Unit, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Deepti Suri
- Allergy Immunology Unit, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Sunil Sethi
- TB and Serology Division, Department of Medical Microbiology, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Amit Rawat
- Allergy Immunology Unit, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India.
| | - Surjit Singh
- Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
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Poddar U, Aggarwal A, Jayalakshmi K, Sarma MS, Srivastava A, Rawat A, Yachha SK. Higher Prevalence of Monogenic Cause Among Very Early Onset Inflammatory Bowel Disease in Children: Experience From a Tertiary Care Center From Northern India. Inflamm Bowel Dis 2023; 29:1572-1578. [PMID: 36594920 DOI: 10.1093/ibd/izac254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Indexed: 01/04/2023]
Abstract
BACKGROUND Very early-onset inflammatory bowel disease (VEO-IBD) is generally defined as onset of IBD at <6 years of age. Up to 20% of VEO-IBD may have a monogenic cause; hence, next-generation sequencing is highly recommended for diagnostic accuracy. There remains a paucity of data on VEO-IBD and the proportion of monogeneic causes in South Asia. We analyzed our tertiary care center experience of monogenic VEO-IBD from Northern India and compared them with nonmonogenic VEO-IBD to find out the factors that differentiate monogenic from nonmonogenic VEO-IBD. METHODS All children (<18 years of age) diagnosed with IBD between January 2010 to July 2021 were analyzed along with the next-generation sequencing data and functional assays when available. Clinical features and outcomes between monogenic and nonmonogenic VEO-IBD were compared. RESULTS A total of 200 children with a median age of 15.3 (range, 0.17-17) years, 125 of whom were boys, were diagnosed to have IBD during the study period. VEO-IBD was seen in 48 (24%) children. Monogenic IBD was diagnosed in 15 (31%) children with VEO-IBD and 7.5% of all IBD cases. The causes of monogenic VEO-IBD included disorders of the immune system (including interleukin-10 receptor mutations) in 12 and epithelial barrier dysfunction in 3. Features that differentiated monogenic from nonmonogenic VEO-IBD were neonatal IBD, presence of perianal disease, IBD unclassified, history of consanguinity and sibling death, wasting, and stunting (P < .05). There were 6 deaths. CONCLUSIONS One-third of participants were monogenic among Indian children with VEO-IBD, the highest proportion reported to date in the world. Next-generation (either exome or whole genome) sequencing should be recommended in a subset of VEO-IBD with neonatal onset, perianal disease, history of consanguinity and siblings' death, wasting, stunting, and IBD unclassified phenotype for an early diagnosis and referral to an appropriate center for hematopoietic stem cell transplantation for a better outcome.
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Affiliation(s)
- Ujjal Poddar
- Department of Pediatric Gastroenterology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - Amita Aggarwal
- Department of Clinical Immunology and Rheumatology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - Krishnegowda Jayalakshmi
- Department of Pediatric Gastroenterology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - Moinak Sen Sarma
- Department of Pediatric Gastroenterology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - Anshu Srivastava
- Department of Pediatric Gastroenterology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - Amit Rawat
- Pediatric Allergy and Immunology Division, Department of Pediatrics, Advanced Pediatric Center, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Surender Kumar Yachha
- Department of Pediatric Gastroenterology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
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Vignesh P, Sharma R, Barman P, Mondal S, Das J, Siniah S, Goyal T, Sharma S, Pilania RK, Jindal AK, Suri D, Rawat A, Singh S. Impact of COVID-19 Pandemic on Clinical Care of Patients and Psychosocial Health of Affected Families with Chronic Granulomatous Disease: an Observational Study from North India. J Clin Immunol 2023; 43:1483-1495. [PMID: 37280467 PMCID: PMC10243701 DOI: 10.1007/s10875-023-01524-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 05/22/2023] [Indexed: 06/08/2023]
Abstract
Day-to-day clinical management of patients with inborn errors of immunity, including chronic granulomatous disease (CGD), has been affected by the coronavirus disease-2019 (COVID-19) pandemic. There is a dearth of information on impact of this pandemic on clinical care of children with CGD and psychological profile of the caretakers. Among the 101 patients with CGD followed up in our center, 5 children developed infection/complications associated with COVID-19. Four of these children had a mild clinical course, while 1 child developed features of multisystem inflammatory syndrome in children (MISC) requiring intravenous glucocorticoids. Parents and caretakers of CGD patients (n = 21) and 21 healthy adults with similar ages and genders were also evaluated on the following scales and questionnaires: COVID-19 Fear Scale (FCV 19S), Impact of Event Scale (IES-R), Depression, Anxiety, and Stress Scale (DASS 21), Preventive COVID-19 Behavior Scale (PCV 19BS), and a "COVID-19 Psychological wellbeing questionnaire." Median age of the parents/caregivers was 41.76 years (range: 28-60 years). Male:female ratio was 2:1. In the study group, 71.4% had higher IES scores compared to 14.3% in controls. The caregivers had a high prevalence of stress, anxiety, avoidance behavior, and depression compared to controls (p < 0.001). Children with CGD have had predominantly mild infection with COVID-19; however, caregivers/parents of these children were at risk of developing psychological distress. The COVID-19 pandemic has brought to light the importance of patients' and caretakers' mental health which needs periodic assessment and appropriate interventions.
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Affiliation(s)
- Pandiarajan Vignesh
- Pediatric Allergy and Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India, 160012.
| | - Rajni Sharma
- Pediatric Allergy and Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India, 160012
| | - Prabal Barman
- Pediatric Allergy and Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India, 160012
| | - Sanjib Mondal
- Pediatric Allergy and Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India, 160012
| | - Jhumki Das
- Pediatric Allergy and Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India, 160012
| | - Sangeetha Siniah
- Pediatric Allergy and Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India, 160012
| | - Taru Goyal
- Pediatric Allergy and Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India, 160012
| | - Saniya Sharma
- Pediatric Allergy and Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India, 160012
| | - Rakesh Kumar Pilania
- Pediatric Allergy and Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India, 160012
| | - Ankur Kumar Jindal
- Pediatric Allergy and Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India, 160012
| | - Deepti Suri
- Pediatric Allergy and Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India, 160012
| | - Amit Rawat
- Pediatric Allergy and Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India, 160012.
| | - Surjit Singh
- Pediatric Allergy and Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India, 160012
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26
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Basu S, Vignesh P, Prithiviraj K, Nadig PL, Sekar A, Rawat A. Infections due to Salmonella sp. in children with chronic granulomatous disease: Our experience from North India. Clin Immunol 2023; 255:109769. [PMID: 37704015 DOI: 10.1016/j.clim.2023.109769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 08/05/2023] [Accepted: 09/08/2023] [Indexed: 09/15/2023]
Abstract
Infections with non-typhoidal Salmonella sp. have been documented in children with chronic granulomatous disease (CGD), but the prevalence of salmonella infection in children with CGD in underdeveloped countries is unknown. We assessed the clinical profiles of CGD patients diagnosed at our tertiary care centre in north India and had Salmonella sp.infections. We found three patients with Salmonella sp. bloodstream infections (2-proven, 1-probable) among the 99 CGD patients. After receiving cotrimoxazole prophylaxis following a CGD diagnosis, we noted that none of our patients experienced non-typhoidal salmonella infection. One patient experienced severe typhoidal bacteremia despite receipt of cotrimoxazole prophylaxis. This patient required numerous hospital admissions and prolonged intravenous antibiotic regimen. We suggest that vaccination with killed typhoidal vaccines should be regularly given to children with CGD in order to avoid typhoidal bacteremia, in addition to cotrimoxazole prophylaxis and a focus on good hand and food hygiene.
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Affiliation(s)
- Suprit Basu
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Pandiarajan Vignesh
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India.
| | - K Prithiviraj
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Pallavi L Nadig
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Aravind Sekar
- Department of Histopathology, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Amit Rawat
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India
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27
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Patra PK, Jindal AK, Rikhi R, Kaur A, Srivastava P, Suri D, Rawat A, Pilania R, Singh S. CD40 gene polymorphism and its expression in children with Kawasaki disease from North India: a preliminary case-control study and meta-analysis. Front Pediatr 2023; 11:1252024. [PMID: 37808562 PMCID: PMC10551130 DOI: 10.3389/fped.2023.1252024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 08/31/2023] [Indexed: 10/10/2023] Open
Abstract
Introduction CD40 gene single-nucleotide polymorphisms (SNPs) have been associated with susceptibility and development of coronary artery abnormalities (CAAs) in children with Kawasaki disease (KD) in Japanese, Chinese, and Taiwanese populations. However, data on SNPs of the CD40 gene in patients with KD from the Indian subcontinent are not available. We studied the CD40 gene polymorphisms and its expression in children with KD from North India. Methods SNPs of the CD40 gene (rs4810485, rs1535045) were studied using Sanger sequencing. CD40 expression was studied by flow cytometry. Meta-analysis was carried out to assess the role of both SNPs of the CD40 gene in KD. GRADEpro GDT software (v.3.2) was used to assess the "certainty of evidence." Results Forty-one patients with KD and 41 age-, sex-matched febrile controls were enrolled. However, none of the alleles and genotypes of the CD40 gene were found to be associated with KD. CD40 expression was higher in KD and in KD with CAAs compared to controls, but it failed to reach statistical significance. In a meta-analysis, the T allele of rs153045 was found to be significantly associated with KD (OR = 1.28; 95% confidence interval (: 1.09-1.50; p = 0.002). The GRADE of evidence for this outcome, however, is of " very low certainty." Conclusion The present study found no association between SNPs (rs4810485 and rs153045) and susceptibility to KD. This could be a reflection of a modest sample size. CD40 expression was higher in KD and in KD with CAAs. In the meta-analysis, the T allele of rs153045 was significantly associated with KD. Our study confirms a significant genetic heterogeneity in KD among different ethnicities.
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Affiliation(s)
- Pratap Kumar Patra
- Department of Pediatrics, All India Institute of Medical Sciences, Patna, India
| | - Ankur Kumar Jindal
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Rashmi Rikhi
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Anit Kaur
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Priyanka Srivastava
- Genetics and Metabolic Unit, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Deepti Suri
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Amit Rawat
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Rakesh Pilania
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Surjit Singh
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
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Dhanorkar M, Dash N, Rawat A, Bharti B, Verma S. Need for Tdap Booster for Indian Children at 10-12 y of Age. Indian J Pediatr 2023; 90:842. [PMID: 37142859 DOI: 10.1007/s12098-023-04633-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 04/20/2023] [Indexed: 05/06/2023]
Affiliation(s)
- Manoj Dhanorkar
- Department of Pediatrics, Advanced Pediatrics Center (APC), Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Nabaneeta Dash
- Department of Pediatrics, Advanced Pediatrics Center (APC), Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Amit Rawat
- Department of Pediatrics, Advanced Pediatrics Center (APC), Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Bhavneet Bharti
- Department of Pediatrics, Advanced Pediatrics Center (APC), Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Sanjay Verma
- Department of Pediatrics, Advanced Pediatrics Center (APC), Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India.
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29
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Nadig PL, Joshi V, Pilania RK, Kumrah R, Kabeerdoss J, Sharma S, Suri D, Rawat A, Singh S. Intravenous Immunoglobulin in Kawasaki Disease-Evolution and Pathogenic Mechanisms. Diagnostics (Basel) 2023; 13:2338. [PMID: 37510082 PMCID: PMC10378342 DOI: 10.3390/diagnostics13142338] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/28/2023] [Accepted: 07/06/2023] [Indexed: 07/30/2023] Open
Abstract
Kawasaki disease (KD) is an acute vasculitis of childhood that affects the medium vessels with a special predilection to the involvement of coronary arteries. The major morbidity of this disease is due to coronary artery aneurysm, which occurs in about 25-30% of untreated cases. For decades now, intravenous immunoglobulin (IVIg) has consistently been shown to reduce the risk of CAAs to less than 5%. However, the mechanism of immunomodulation remains unclear. Several studies on the role of IVIg in the modulation of toll-like receptor pathways, autophagy, and apoptosis of the mononuclear phagocytic system, neutrophil extracellular trap, and dendritic cell modulation suggest a modulatory effect on the innate immune system. Similarly, certain studies have shown its effect on T-cell differentiation, cytokine release, and regulatory T-cell function. In this review, we discuss the potential mechanisms underlying the immunomodulatory actions of IVIg in patients with Kawasaki disease. Furthermore, we provide a summary of the evidence regarding various infusion protocols and dosages utilized in the treatment of KD patients.
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Affiliation(s)
- Pallavi L Nadig
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education & Research, Chandigarh 160012, India
| | - Vibhu Joshi
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education & Research, Chandigarh 160012, India
| | - Rakesh Kumar Pilania
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education & Research, Chandigarh 160012, India
| | - Rajni Kumrah
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education & Research, Chandigarh 160012, India
| | - Jayakanthan Kabeerdoss
- Pediatric Biochemistry Unit, Department of Pediatrics, Postgraduate Institute of Medical Education & Research, Chandigarh 160012, India
| | - Saniya Sharma
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education & Research, Chandigarh 160012, India
| | - Deepti Suri
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education & Research, Chandigarh 160012, India
| | - Amit Rawat
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education & Research, Chandigarh 160012, India
| | - Surjit Singh
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education & Research, Chandigarh 160012, India
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30
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Sharma S, Nadig PL, Pilania RK, Sharma K, Dhaliwal M, Rawat A, Singh S. Kawasaki Disease and Inborn Errors of Immunity: Exploring the Link and Implications. Diagnostics (Basel) 2023; 13:2151. [PMID: 37443545 DOI: 10.3390/diagnostics13132151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 06/21/2023] [Accepted: 06/22/2023] [Indexed: 07/15/2023] Open
Abstract
The exact etiopathogenesis of Kawasaki disease (KD), the most common childhood vasculitis, remains unknown; however, an aberrant immune response, possibly triggered by an infectious or environmental agent in genetically predisposed children, is believed to be the underlying pathogenetic mechanism. Patients with inborn errors of immunity (IEI) are predisposed to infections that trigger immune dysregulation due to an imbalance in various arms of the immune system. KD may develop as a complication in both primary and secondary immunodeficiencies. KD may occur either at disease presentation or have a later onset in IEIs. These include X-linked agammaglobulinemia (XLA), selective IgA deficiency, transient hypogammaglobulinemia of infancy; Wiskott-Aldrich syndrome (WAS), hyper IgE syndrome (HIES); chronic granulomatous disease (CGD), innate and intrinsic immunity defects, and autoinflammatory diseases, including PFAPA. Hitherto, the association between KD and IEI is confined to specific case reports and case series and, thus, requires extensive research for a comprehensive understanding of the underlying pathophysiological mechanisms. IEIs may serve as excellent disease models that would open new insights into the disease pathogenesis of children affected with KD. The current review highlights this critical association between KD and IEI supported by published literature.
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Affiliation(s)
- Saniya Sharma
- Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Pallavi L Nadig
- Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Rakesh Kumar Pilania
- Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Kaushal Sharma
- Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Manpreet Dhaliwal
- Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Amit Rawat
- Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Surjit Singh
- Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India
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Jindal AK, Sil A, Aggarwal R, Vinay K, Bishnoi A, Suri D, Rawat A, Kumaran MS, Saikia B, Sarkar R, Gupta L, Kumar DD, Jindal R, Sukumaran TU, Ouseph J, Longhurst H, Pawankar R, Singh S, Dogra S. Management of hereditary angioedema in resource-constrained settings: A consensus statement from Indian subcontinent. Asia Pac Allergy 2023; 13:60-65. [PMID: 37388810 PMCID: PMC10287105 DOI: 10.5415/apallergy.0000000000000100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 04/25/2023] [Indexed: 07/01/2023] Open
Abstract
Hereditary angioedema (HAE) is an uncommon disorder characterized clinically by recurrent episodes of nonitchy subcutaneous and/or submucosal swellings. The estimated prevalence of HAE is ~ 1: 10,000 to 1: 50,000. There are no prevalence data from India, however, estimates suggest that there are 27,000 to 135,000 patients with HAE in India at present. The majority of these, however, remain undiagnosed. Replacement of plasma-derived or recombinant C1-esterase inhibitor (C1-INH) protein, administered intravenously, is the treatment of choice during the management of acute episodes of angioedema (i.e., "on-demand treatment") and is also useful for short-term prophylaxis (STP) and long-term prophylaxis (LTP). This has been found to be effective and safe even in young children and during pregnancy. Until recently, none of the first-line treatment options were available for "on-demand treatment," STP or LTP in India. As a result, physicians had to use fresh frozen plasma for both "on-demand treatment" and STP. For LTP, attenuated androgens (danazol or stanozolol) and/or tranexamic acid were commonly used. These drugs have been reported to be useful for LTP but are associated with a significant risk of adverse effects. Intravenous pd-C1-INH, the first-line treatment option, is now available in India. However, because there is no universal health insurance, access to pd-C1-INH is a significant challenge. HAE Society of India has developed these consensus guidelines for India and other resource-constrained settings where plasma-derived C1-INH therapy is the only available first-line treatment option for the management of HAE and diagnostic facilities are limited. These guidelines have been developed because it may not be possible for all patients to access the recommended therapy and at the recommended doses as suggested by the international guidelines. Moreover, it may not be feasible to follow the evaluation algorithm suggested by the international guidelines.
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Affiliation(s)
- Ankur Kumar Jindal
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Archan Sil
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Ridhima Aggarwal
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Keshavamurthy Vinay
- Department of Dermatology, Venereology and Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Anuradha Bishnoi
- Department of Dermatology, Venereology and Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Deepti Suri
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Amit Rawat
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Muthu Sendhil Kumaran
- Department of Dermatology, Venereology and Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Biman Saikia
- Department of Immunopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Rashmi Sarkar
- Department of Dermatology, Lady Hardinge Medical College and Associated Hospitals, New Delhi, India
| | - Lalit Gupta
- Department of Dermatology, RNT Medical College, Udaipur, India
| | | | - Rashmi Jindal
- Department of Dermatology, Himalayan Institute of Medical Sciences, Dehradun, India
| | | | - Jose Ouseph
- Government Medical College, Alappuzha, Kerala, India
| | - Hilary Longhurst
- Department of Immunology, Auckland City Hospital, Te Toka Tumai
- Department of Medicine, University of Auckland, Auckland, New Zealand
| | - Ruby Pawankar
- Department of Pediatrics, Nippon Medical School, Tokyo, Japan
| | - Surjit Singh
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Sunil Dogra
- Department of Dermatology, Venereology and Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Banday AZ, Babbar A, Patra PK, Jindal AK, Suri D, Pandiarajan V, Rawat A, Gupta A, Singh S. Occurrence of Kawasaki disease and neoplasms in temporal proximity-single-center experience and systematic review of literature. J Trop Pediatr 2023; 69:fmad022. [PMID: 37608506 DOI: 10.1093/tropej/fmad022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
Various factors (e.g., infections) have been postulated to trigger Kawasaki disease (KD) in genetically predisposed individuals. Whether neoplasms can trigger KD is largely unknown due to paucity of data. Herein, we provide a detailed account of KD occurring in temporal proximity (within 6 months) to neoplasms ('neoplasm-KD'). Patients with 'neoplasm-KD' diagnosed/treated at our center from January 1994 to May 2021 were included. Additionally, we performed a systematic literature review (as per PRISMA 2020 guidelines) utilizing PubMed, Web of Science and Scopus databases to retrieve details of all patients with 'neoplasm-KD' reported till June 2021. Patients with multisystem inflammatory syndrome in children were excluded. As all reports pertained to case description(s), risk of bias assessment was not performed. The details of patients with 'neoplasm-KD' were analyzed using SPSS software. Primary and secondary outcomes were occurrence of coronary artery abnormalities (CAAs) and clinical characteristics of 'neoplasm-KD', respectively. A total of 25 patients (data from 18 reports) were included in the 'neoplasm-KD' dataset. The most frequently diagnosed neoplasm was acute lymphoblastic leukemia followed by neuroblastoma and acute myeloblastic leukemia. Overall, CAAs were noted in 48% of patients. Interval between diagnoses of KD and neoplasm was shorter in patients with CAAs as compared to patients with normal coronary arteries (p-value = 0.03). Besides providing a comprehensive description of 'neoplasm-KD', this study raises a possibility that neoplasms might trigger KD. Also, 'neoplasm-KD' may be associated with a higher risk of development of CAAs. However, the small size of 'neoplasm-KD' dataset precludes definitive conclusions regarding this association. Funding: nil. Registration: PROSPERO (CRD42021270458).
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Affiliation(s)
- Aaqib Zaffar Banday
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh 160012, India
| | - Alisha Babbar
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh 160012, India
| | - Pratap Kumar Patra
- Allergy Immunology Unit, Department of Pediatrics, All India Institute of Medical Sciences (AIIMS), Patna 801105, India
| | - Ankur Kumar Jindal
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh 160012, India
| | - Deepti Suri
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh 160012, India
| | - Vignesh Pandiarajan
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh 160012, India
| | - Amit Rawat
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh 160012, India
| | - Anju Gupta
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh 160012, India
| | - Surjit Singh
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh 160012, India
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Aggarwal R, Mondal S, Angrup A, Vignesh P, Rawat A. Stenotrophomonas maltophilia: An Emerging Pathogen in Chronic Granulomatous Disease. Pediatr Infect Dis J 2023:00006454-990000000-00411. [PMID: 37054391 DOI: 10.1097/inf.0000000000003927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/15/2023]
Abstract
Reports of infections with Stenotrophomonas maltophilia in primary immunodeficiency diseases are scarce. We report 3 children with chronic granulomatous disease (CGD) who developed infections due to S. maltophilia (1- septicemia and 2- pneumonia). We propose that CGD is a risk factor for the development of S. maltophilia infections and children with unexplained S. maltophilia infections need to be worked up for CGD.
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Affiliation(s)
- Ridhima Aggarwal
- From the Allergy Immunology Unit, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Sanjib Mondal
- From the Allergy Immunology Unit, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Archana Angrup
- Medical Microbiology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Pandiarajan Vignesh
- Allergy Immunology Unit, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Amit Rawat
- Allergy Immunology Unit, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
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Sharma M, Dhaliwal M, Tyagi R, Goyal T, Sharma S, Rawat A. Microbiome and Its Dysbiosis in Inborn Errors of Immunity. Pathogens 2023; 12:pathogens12040518. [PMID: 37111404 PMCID: PMC10145396 DOI: 10.3390/pathogens12040518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 03/20/2023] [Accepted: 03/24/2023] [Indexed: 03/29/2023] Open
Abstract
Inborn errors of immunity (IEI) can present with infections, autoimmunity, lymphoproliferation, granulomas, and malignancy. IEIs are due to genetic abnormalities that disrupt normal host-immune response or immune regulation. The microbiome appears essential for maintaining host immunity, especially in patients with a defective immune system. Altered gut microbiota in patients with IEI can lead to clinical symptoms. Microbial dysbiosis is the consequence of an increase in pro-inflammatory bacteria or a reduction in anti-inflammatory bacteria. However, functional and compositional differences in microbiota are also involved. Dysbiosis and a reduced alpha-diversity are well documented, particularly in conditions like common variable immunodeficiency. Deranged microbiota is also seen in Wiskott–Aldrich syndrome, severe combined immunodeficiency, chronic granulomatous disease, selective immunoglobulin-A deficiency, Hyper IgE syndrome (HIGES), X-linked lymphoproliferative disease-2, immunodysregulation, polyendocrinopathy, enteropathy, x-linked syndrome, and defects of IL10 signalling. Distinct gastrointestinal, respiratory, and cutaneous symptoms linked to dysbiosis are seen in several IEIs, emphasizing the importance of microbiome identification. In this study, we discuss the processes that maintain immunological homeostasis between commensals and the host and the disruptions thereof in patients with IEIs. As the connection between microbiota, host immunity, and infectious illnesses is better understood, microbiota manipulation as a treatment strategy or infection prevention method would be more readily employed. Therefore, optimal prebiotics, probiotics, postbiotics, and fecal microbial transplantation can be promising strategies to restore the microbiota and decrease disease pathology in patients with IEIs.
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Roos D, van Leeuwen K, Madkaikar M, Kambli PM, Gupta M, Mathews V, Rawat A, Kuhns DB, Holland SM, de Boer M, Kanegane H, Parvaneh N, Lorenz M, Schwarz K, Klein C, Sherkat R, Jafari M, Wolach B, den Dunnen JT, Kuijpers TW, Köker MY. Hematologically important mutations: Leukocyte adhesion deficiency (second update). Blood Cells Mol Dis 2023; 99:102726. [PMID: 36696755 DOI: 10.1016/j.bcmd.2023.102726] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 01/16/2023] [Accepted: 01/16/2023] [Indexed: 01/22/2023]
Abstract
Leukocyte adhesion deficiency (LAD) is an immunodeficiency caused by defects in the adhesion of leukocytes (especially neutrophils) to the blood vessel wall. As a result, patients with LAD suffer from severe bacterial infections and impaired wound healing, accompanied by neutrophilia. In LAD-I, characterized directly after birth by delayed separation of the umbilical cord, mutations are found in ITGB2, the gene that encodes the β subunit (CD18) of the β2 integrins. In the rare LAD-II disease, the fucosylation of selectin ligands is disturbed, caused by mutations in SLC35C1, the gene that encodes a GDP-fucose transporter of the Golgi system. LAD-II patients lack the H and Lewis Lea and Leb blood group antigens. Finally, in LAD-III, the conformational activation of the hematopoietically expressed β integrins is disturbed, leading to leukocyte and platelet dysfunction. This last syndrome is caused by mutations in FERMT3, encoding the kindlin-3 protein in all blood cells, involved in the regulation of β integrin conformation. This article contains an update of the mutations that we consider to be relevant for the various forms of LAD.
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Affiliation(s)
- Dirk Roos
- Sanquin Research, and Landsteiner Laboratory, Amsterdam University Medical Center, location AMC, University of Amsterdam, Amsterdam, the Netherlands.
| | - Karin van Leeuwen
- Sanquin Research, and Landsteiner Laboratory, Amsterdam University Medical Center, location AMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Manisha Madkaikar
- Pediatric Immunology and Leukocyte Biology Lab CMR, National Institute of Immunohaematology, K E M Hospital, Parel, Mumbai, India
| | - Priyanka M Kambli
- Pediatric Immunology and Leukocyte Biology Lab CMR, National Institute of Immunohaematology, K E M Hospital, Parel, Mumbai, India
| | - Maya Gupta
- Pediatric Immunology and Leukocyte Biology Lab CMR, National Institute of Immunohaematology, K E M Hospital, Parel, Mumbai, India
| | - Vikram Mathews
- Dept of Hematology, Christian Medical College, Vellore, Tamil Nadu, India
| | - Amit Rawat
- Paediatric Allergy Immunology Unit, Department of Paediatrics, Advanced Paediatrics Centre, Chandigarh, India
| | - Douglas B Kuhns
- Neutrophil Monitoring Laboratory, Applied/Developmental Research Directorate, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - Steven M Holland
- Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD, USA
| | - Martin de Boer
- Sanquin Research, and Landsteiner Laboratory, Amsterdam University Medical Center, location AMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Hirokazu Kanegane
- Department of Child Health and Development, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Nima Parvaneh
- Infectious Disease Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Myriam Lorenz
- Institute for Transfusion Medicine, University Ulm, Ulm, Germany
| | - Klaus Schwarz
- Institute for Transfusion Medicine, University Ulm, Ulm, Germany; Institute for Clinical Transfusion Medicine and Immunogenetics Ulm, German Red Cross Blood Service Baden-Württemberg - Hessen, Ulm, Germany
| | - Christoph Klein
- Dr. von Hauner Children's Hospital, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Roya Sherkat
- Immunodeficiency Diseases Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mahbube Jafari
- Immunodeficiency Diseases Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Baruch Wolach
- Pediatric Immunology Service, Edmond and Lily Safra Children's Hospital, Chaim Sheba Medical Center, Tel Hashomer, Israel
| | - Johan T den Dunnen
- Human Genetics, Leiden University Medical Center, Leiden, the Netherlands
| | - Taco W Kuijpers
- Sanquin Research, and Landsteiner Laboratory, Amsterdam University Medical Center, location AMC, University of Amsterdam, Amsterdam, the Netherlands; Emma Children's Hospital, Amsterdam University Medical Centre, location AMC, Amsterdam, the Netherlands
| | - M Yavuz Köker
- Department of Immunology, Erciyes Medical School, University of Erciyes, Kayseri, Türkiye
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Jindal AK, Handa S, Loganathan SK, Sudhakar M, Kaushik A, Suri D, Pandiarajan V, Rawat A, Gupta A, De D, Mahajan R, Singh S. Juvenile localized scleroderma: A single-centre experience from India. J Eur Acad Dermatol Venereol 2023; 37:598-604. [PMID: 36413107 DOI: 10.1111/jdv.18765] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 11/08/2022] [Indexed: 11/23/2022]
Abstract
BACKGROUND Juvenile localized scleroderma (JLS) or morphoea, a rare chronic autoimmune disease predominantly affects skin, subcutaneous tissue and occasionally the adjacent muscle, fascia and bone. We report the largest single-centre cohort of patients with JLS from India. METHODS Patients who were diagnosed to have JLS were enrolled from the Paediatric Dermatology Clinic and the Paediatric Rheumatology Clinic of a tertiary care referral hospital in India. Collected data included details of the clinical profile, laboratory investigations and management. RESULTS We analysed 84 patients with Juvenile localized scleroderma. Median age of disease onset was 5 years, and median age at diagnosis was 8 years. Commonest subtype was linear scleroderma (57 patients, 67.7%) followed by plaque morphoea and generalized morphoea. Fourteen patients (16.6%) were noted to have extracutaneous manifestations (ECMs). These included arthritis in eight (33.3%), brain parenchymal abnormalities in four (4.7%) and pulmonary involvement in two (8.3%) patients. Antinuclear antibody (ANA) was positive in eight/25 patients (32%; diffuse and speckled pattern in four patients each). One amongst these also had elevated anti-dsDNA titres. Positive ANA was found to have no association with ECMs (p 1.000). Patients were treated using methotrexate (61 patients; 72.6%), dexamethasone oral mini-pulse (OMP; 35 patients; 41.6%), calcipotriol (39 patients; 46.4%), topical corticosteroids (32 patients; 38%) and topical tacrolimus (three patients; 3.7%). Using linear regression analysis, administration of dexamethasone OMP and calcipotriol was found to be a predictor of good treatment response (p 0.034 and 0.019, respectively). CONCLUSION Early use of systemic corticosteroids along with methotrexate may be more beneficial than methotrexate therapy alone.
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Affiliation(s)
- Ankur Kumar Jindal
- Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Sanjeev Handa
- Department of Dermatology, Venereology and Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Sathish Kumar Loganathan
- Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Murugan Sudhakar
- Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Akanksha Kaushik
- Department of Dermatology, Venereology and Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Deepti Suri
- Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Vignesh Pandiarajan
- Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Amit Rawat
- Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Anju Gupta
- Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Dipankar De
- Department of Dermatology, Venereology and Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Rahul Mahajan
- Department of Dermatology, Venereology and Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Surjit Singh
- Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Vignesh P, Barman P, Basu S, Mondal S, Ishran B, Kumrah R, Dod A, Garg R, Rawat A, Singh S. Juvenile dermatomyositis associated with autoantibodies to small ubiquitin-like modifier activating enzyme: a report of 4 cases from North India and a review of literature. Immunol Res 2023; 71:112-120. [PMID: 36278969 DOI: 10.1007/s12026-022-09334-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 10/17/2022] [Indexed: 01/20/2023]
Abstract
BACKGROUND Juvenile dermatomyositis (JDM) is the commonest inflammatory myositis in children. The clinical phenotype is often characterized by the presence of myositis-specific antibodies (MSA). Antibodies to small ubiquitin-like modifier activating enzyme (SAE) are amongst the rarest MSA reported in children. MATERIALS AND METHODS A review of medical records of all patients diagnosed to have JDM during the period January 1992-April 2022 in our institute was done. Case records of children with JDM who had significant positivity for anti-SAE antibody by myositis immunoblot were analysed in detail. RESULTS Of the 140 children with JDM, MSA immunoblot was carried out in 53 patients-4 (7.5%) amongst these had significant positivity for anti-SAE antibodies. Median age of onset of symptoms was 5.5 years (range: 5-11 years). Clinical features at presentation included fever, photosensitivity, heliotrope rash, and Gottron papules. Clinically significant proximal muscle weakness was noted in 3/4 patients; 1 had no discernible weakness but had radiological evidence of myositis. None of the 4 patients had evidence of interstitial lung disease or calcinosis. All patients were treated with intravenous pulse methylprednisolone: subcutaneous weekly methotrexate and hydroxychloroquine. One patient received mycophenolate mofetil because of a relapse of muscle disease, while none received cyclophosphamide or biologics. Median follow-up duration was 21.5 months (range: 6-39 months). CONCLUSION Anti-SAE antibodies were found in 4/53 (7.5%) of North Indian children with JDM. All 4 patients had predominant cutaneous manifestations followed by muscle disease. Response to treatment was brisk and sustained. None had developed calcinosis in the follow-up. KEY MESSAGES 1. We report high prevalence of anti-SAE antibody positivity (7.5%) in North Indian cohort of JDM. 2. Cutaneous disease precedes muscle weakness in children with anti-SAE positive JDM. 3. No evidence of interstitial lung disease/calcinosis was seen in these children.
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Affiliation(s)
- Pandiarajan Vignesh
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India.
| | - Prabal Barman
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Suprit Basu
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Sanjib Mondal
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Bhoomika Ishran
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Rajni Kumrah
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Aditya Dod
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Ravinder Garg
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Amit Rawat
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Surjit Singh
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
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Verma S, Baig MZ, Rawat A, Kapoor R, Rawat A, Suri V, Suri V. 109. Seroprevalence of Protective Antibodies against Varicella, Hepatitis-A and Dengue among Indian Children, Adolescents and Adults. Open Forum Infect Dis 2022. [DOI: 10.1093/ofid/ofac492.187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Abstract
Background
Varicella, Hepatitis-A and Dengue cause significant disease burden in our country. Estimation of age-wise seroprevalence of antibodies against these diseases not only help us in understanding age-specific incidence rates and susceptibility, but also help policy makers in deciding need and timing of vaccination. None of these vaccines are part of current national immunization program in India, yet.
Methods
In this observational cross-sectional study, apparently healthy children (9-12 years), adolescents (15-18 years) and adults (25-30 years) attending OPD of a tertiary care hospital in Northern India over two-year period (July 17- June 19) were enrolled after taking informed written consent, and their 3-ml venous blood sample was collected. Ethical clearance was obtained from Institute Ethics committee, before enrolling subjects. Serum was tested for IgG antibodies using specific commercial ELISA kits. Those who received received Hepatitis-A or Varicella vaccination in past were excluded from enrollment.
Results
Out of total 240 subjects (M:F=117:123) enrolled, 75 were children, 75 adolescents and 90 adults in specified age groups. Mean age in these three groups were 11.04, 16.52 and 26.53 years respectively.
In our study, antibodies (IgG) against Varicella were >12 U/ml (seroprotective) in 36% (27/75), 74.6% (56/75), 64.5% (58/90) in children, adolescent and adults in specified age groups, respectively. Similarly, the antibodies (IgG) against Hepatitis-A were >10 U/ml (seroprotective) in above three groups were 68% (51/75), 85.3% (64/75), 95.5% (86/90). For dengue IgG antibodies also, seropositivity rates in above three groups were 37.3% (28/75), 62.7% (47/75), 53.3% (48/90).
Conclusion
Large proportion of children, adolescents and adults remain susceptible to Varicella and Hepatitis-A infection in India. Early childhood vaccination with Varicella and Hepatitis-A vaccines should be a part of National Immunization Programme in India, as a part of preventive strategy.
Our study also showed a large proportion of children, adolescents and adults remain seronegative for Dengue antibodies in various age groups. Therefore, if currently available dengue vaccine (Dengvaxia) has to be used in our population, it can only be used after individual screening.
Disclosures
All Authors: No reported disclosures.
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Affiliation(s)
- Sanjay Verma
- PGIMER , Chandigarh, India, Chandigarh, Chandigarh , India
| | | | - Ankita Rawat
- PGIMER , CHANDIGARH, INDIA, Chandigarh, Chandigarh , India
| | - Rajesh Kapoor
- PGIMER , CHANDIGARH, INDIA, Chandigarh, Chandigarh , India
| | - Amit Rawat
- PGIMER , CHANDIGARH, INDIA, Chandigarh, Chandigarh , India
| | - Vikas Suri
- PGIMER , CHANDIGARH, INDIA, Chandigarh, Chandigarh , India
| | - Vanita Suri
- PGIMER , CHANDIGARH, INDIA, Chandigarh, Chandigarh , India
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Verma S, Sachdeva RK, Mahajan V, Rawat A, Nehra U, Subramani V, Jassal M, Bharti B. 108. Immune Status of Indian Pediatric Health Care Workers against Various Vaccine Preventable Diseases. Open Forum Infect Dis 2022. [PMCID: PMC9752141 DOI: 10.1093/ofid/ofac492.186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Background Health care workers (HCWs) possess a potential risk to acquire and spread various infections. This study was planned to assess the immune status of HCWs in pediatric departments of two tertiary care hospitals in Northern India. Methods In this cross-sectional study, HCW’s (Indians), working in pediatric departments of these hospitals, over 6-months period (July18-Dec18) were enrolled after taking written consent and their 5-ml venous blood sample was collected. Ethical clearance was obtained from Institute Ethics committee, before enrolling subjects. Serum were tested for antibodies against diphtheria-toxin (DT), pertussis-toxin (PT), measles, mumps, rubella, varicella, hepatitis-B (HbsAb) and hepatitis-A using commercial IgG (quantitative) ELISA kits. Results A total of 160 HCW’s (M:F=77:83), having mean age 30.6±7.8 years, were enrolled. Out of them 106 (66.3%) were resident doctors, 31 (19.4%) nursing-staff, 18 (11.3%) faculty members, 3 (1.9%) research-staff and 2 (1.3%) paramedical-staff. In our study, antibodies (IgG) against DT were between 0.01 to 0.1 IU/ml in 78.1% (120/160); requiring a Tdap booster; while 7 out of 125 had titers < 0.01 IU/ml, which needed 3-doses of primary vaccination. Antibodies (IgG) against PT < 30 IU/ml were seen in 60.6% (97/160), which were considered as seronegative, as per kit recommendations. A total of 3% (5/160), 13.1% (21/160), 10% (16/160), 17.5% (28/160) had titers < 12 IU/ml for IgG antibodies against measles, mumps, rubella and varicella respectively; were considered unprotected. A total of 25% (40/160) had Anti-HBs antibody titers < 20 mIU/ml; which were low, therefore were advised to take one booster dose of Hep-B vaccine. A total of 15.6% (25/160) had IgG antibodies against hepatitis-A < 10 mIU/ml; were unprotected. Conclusion Alarming proportions of pediatric-HCWs had low antibody titres against DT (78.1%) and PT (60.6%), necessitating a dose of Tdap. A total of 10%, 17.5% and 15.6% lacked protective antibodies against rubella, varicella and hepatitis-A. A quarter of screened population had low anti-Hbs titres, requiring boosting of immunity. Our study emphasizes the urgent need for improving immunization status of pediatric HCW’s; as they continue to remain susceptible to various vaccine preventable infectious diseases. Disclosures All Authors: No reported disclosures.
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Affiliation(s)
- Sanjay Verma
- PGIMER, Chandigarh, India, Chandigarh, Chandigarh, India
| | | | | | - Amit Rawat
- PGIMER, CHANDIGARH, INDIA, Chandigarh, Chandigarh, India
| | - Urvashi Nehra
- PGIMER, CHANDIGARH, INDIA, Chandigarh, Chandigarh, India
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Verma S, James D, Lavanya J, Rawat A, Venkataseshan S, Aggarwal N. 577. Cord Blood Protective Antibodies Seroprevalence against Diphtheria, Pertussis, Measles, Mumps and Rubella at Birth among Healthy Term Indian Neonates. Open Forum Infect Dis 2022. [DOI: 10.1093/ofid/ofac492.629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Abstract
Background
The resurgence of vaccine preventable diseases in young infants is a matter of concern worldwide. Cord blood antibodies seroprevalence against various vaccine preventable diseases could reflect protection rates among adults, which could be important in providing protection in early infancy of newborn baby. Tdap vaccination is not yet part of immunization program for pregnant women in India.
Methods
Apparently healthy term newborns, delivered at a tertiary care hospital in Northern India, over two-year period were enrolled after taking informed written consent from their parents, and their cord blood sample was collected at birth. Ethical clearance was obtained from Institute Ethics Committee before starting enrollment.
Results
A total of 160 newborns (M:F=86:74) were enrolled. In our study, antibodies (IgG) against diphtheria toxin (DT) were >0.1 IU/ml in 44.4% (71/160), 0.01 to 0.1 IU/ml in 53.1% (85/160) and < 0.01 IU/ml in 2.5% (4/160). Only 44.4% of them were fully protected at birth against diphtheria.
Antibodies (IgG) against pertussis toxin (PT) >40 U/ml were seen in 41.2% (66/160). Out of these 66 children, 23 had titers >100 U/ml. Total of 58.8% (94/160) children had antibodies < 40 U/ml. Out of these 94 children, 48 had titers < 20 U/ml. Since correlates of protection in pertussis are not defined; those having titers >100 U/ml i.e. 14.3% were most protected; while those having titers < 20 U/ml were least protected.
Antibodies (IgG) against measles antigen were >12 IU/ml in 88.8% (142/160). Antibodies (IgG) against mumps antigen were >12 IU/ml in 83.1% (133/160). Antibodies (IgG) against rubella antigen were >12 IU/ml in 83.7% (134/160).
Conclusion
Protective antibodies against diphtheria and pertussis toxins were less in the studied newborns at birth making them susceptible to these diseases in early infancy, before primary vaccination commences. Tdap vaccination for pregnant mothers in India could help in improving these titers and protection in early infancy. Protective antibodies against measles, mumps and rubella in studied newborns at birth were satisfactory. For further enhancing protection, especially against rubella, one dose of MMR vaccine may be advised for women in child bearing age.
Acknowledgement: PGI Intramural Research Grant
Disclosures
All Authors: No reported disclosures.
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Affiliation(s)
- Sanjay Verma
- PGIMER , Chandigarh, India, Chandigarh, Chandigarh , India
| | - Deepak James
- PGIMER , CHANDIGARH, INDIA, Chandigarh, Chandigarh , India
| | - Jula Lavanya
- PGIMER , CHANDIGARH, INDIA, Chandigarh, Chandigarh , India
| | - Amit Rawat
- PGIMER , CHANDIGARH, INDIA, Chandigarh, Chandigarh , India
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Sankhyan N, Rawat A, Vyas S, Sahu JK, Bhagwat C, Madaan P, Saini L, Saini AG, Suthar R, Sukhija J, Jayashree M. Seroprevalence of MOG and AQP4 Antibodies and Outcomes in an Indian Cohort of Pediatric Acquired Demyelinating Syndromes. Neuropediatrics 2022; 53:351-357. [PMID: 35617966 DOI: 10.1055/a-1863-1862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
This study aimed to determine the seropositivity of myelin oligodendrocyte glycoprotein antibodies (MOG-Ab) and aquaporin-4 antibodies (AQP4-Ab) and outcomes in children with acquired demyelinating syndromes (ADSs). Children (6 months-15 years) with suspected ADS were enrolled and tested for MOG-Ab and AQP4-Ab prospectively over 18 months at a tertiary care hospital in North India. Children with proven nonimmune-mediated neurological disorders were enrolled as controls. Of 79 children with suspected ADS, 66 were enrolled. Among the enrolled children with ADS, acute demyelinating encephalomyelitis (ADEM) (25) was the most common first clinical event followed by optic neuritis (ON) (20) and transverse myelitis (TM) (19; one child had ON and TM simultaneously [neuromyelitis optica spectrum disorders [NMOSDs]]), while two children had clinically isolated syndrome (CIS) apart from ON and TM. Fourteen (21.2%, confidence interval [CI] 11.3-31.1) tested positive for one antibody (12 [18.1%; 95% CI 10.5-25.5%] for MOG-Ab and 2 [3%; 95% CI 0-7.2%] for AQP4-Ab). None of the 62 controls tested positive for any antibody. The final diagnosis in those with the monophasic ADS was ADEM (21), ON (13), TM (16), and other CIS (1) while that in children with recurrent events was multiphasic disseminated encephalomyelitis (MDEM) (2), NMOSD (3), ADEM-ON (4), recurrent ON (4), and MS (2). Among those with the first event, 4/51 (7.8%; 95% CI 0.5-15.2%) were MOG-Ab positive and 2 AQP4-Ab positive, whereas 8/15 (53.3% [95% CI 28.1-78.6%]) with recurrent events (MDEM [2], ADEM-ON [4], recurrent ON [1], and recurrent TM [1]) were MOG-Ab positive. Hence, MOG-Abs are the most common antibodies detected in one in five children with pediatric ADS, especially in relapsing disease. AQP4-Abs are rare in children with ADS.
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Affiliation(s)
- Naveen Sankhyan
- Pediatric Neurology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Amit Rawat
- Pediatric Allergy and Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Sameer Vyas
- Section of Neuroimaging and Interventional Radiology, Department of Radiodiagnosis and Imaging, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Jitendra Kumar Sahu
- Pediatric Neurology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Chandana Bhagwat
- Pediatric Neurology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Priyanka Madaan
- Pediatric Neurology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Lokesh Saini
- Pediatric Neurology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Arushi Gahlot Saini
- Pediatric Neurology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Renu Suthar
- Pediatric Neurology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Jaspreet Sukhija
- Department of Ophthalmology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Murlidharan Jayashree
- Pediatric Critical Care Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Banday AZ, Joshi V, Arora K, Sadanand R, Basu S, Pilania RK, Jindal AK, Vignesh P, Gupta A, Sharma S, Dhaliwal M, Rawat A, Singh S, Suri D. Challenges in the diagnosis of periodic fever, aphthous stomatitis, pharyngitis, and adenitis syndrome in developing countries—A decade of experience from North India. Front Immunol 2022; 13:958473. [PMID: 36203600 PMCID: PMC9530276 DOI: 10.3389/fimmu.2022.958473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 08/25/2022] [Indexed: 12/04/2022] Open
Abstract
Background Reports of periodic fever, aphthous stomatitis, pharyngitis, and adenitis (PFAPA) syndrome from developing countries are sparse. Recognizing PFAPA is often challenging in these regions due to a higher incidence of infectious illnesses and significant resource constraints. Herein, we present our experience from North India regarding the diagnosis and management of PFAPA syndrome. Methods We reviewed cases of non-monogenic periodic fever syndrome diagnosed at our center from January 2011 to December 2021. A total of 17 children who fulfilled the Marshall criteria for PFAPA syndrome were included. Data regarding basic clinical features, treatment/outcome, and performance of the recently proposed Eurofever/PRINTO and Takeuchi criteria were analyzed. Results Besides recurrent fever, the triad of oral aphthae, pharyngitis, and adenitis was noted in only 18% of patients. Episodes of exudative pharyngitis/tonsillitis were documented in 24%. These figures were lower than the values reported from developed countries. The Takeuchi and Eurofever/PRINTO criteria were fulfilled in 76% and 71% cases, respectively. In addition to antipyretics and supportive care, intermittent steroid therapy was the main treatment modality used. Additional treatment with colchicine (n = 3) and thalidomide (n = 1) was used successfully in a few patients. Before the diagnosis of PFAPA, all patients had received multiple courses of antimicrobials (without microbiological confirmation). These included multiple courses of antibacterials for fever, pharyngotonsillitis, and/or cervical adenitis in all patients and antivirals for fever and aphthous stomatitis in a patient. Empiric antitubercular therapy had also been administered in two patients. Conclusions A significant proportion of patients with PFAPA seem to remain undiagnosed in the Indian subcontinent. Increased awareness and improvement in basic healthcare facilities are crucial in enhancing the recognition of PFAPA, which would eliminate the unprecedented scale of undesirable antimicrobial use in such children.
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Kumrah R, Pilania RK, Menia NK, Rawat A, Sharma J, Gupta A, Vignesh P, Jindal AK, Rikhi R, Agarwal A, Gupta V, Singh S, Suri D. Blau syndrome: Lessons learned in a tertiary care centre at Chandigarh, North India. Front Immunol 2022; 13:932919. [PMID: 36189202 PMCID: PMC9521334 DOI: 10.3389/fimmu.2022.932919] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 08/23/2022] [Indexed: 11/13/2022] Open
Abstract
Objectives Blau syndrome (BS) is a rare autoinflammatory disease characterized by arthritis, dermatitis, and granulomatous uveitis in early childhood. The study presents the clinical experience of patients with BS at a tertiary care centre in Chandigarh, North India. Methods Analysis of the clinical profile of patients of BS with NOD2 gene mutations under follow-up was carried out. Results Diagnosis of BS was genetically confirmed in 11 patients (10 children and one adult; six male and five female patients) from 10 families. The median age of onset of symptoms was 12 months (range, 4 months–4 years), while the age at diagnosis ranged from 2.3 to 26 years. The classic triad of arthritis, dermatitis, and uveitis was present in 6/11 (54.5%) patients. The frequency of arthritis, dermatitis, and uveitis was 100%, 81.8%, and 72.7%, respectively. The median age at diagnosis of ocular symptoms was 4 years (range, 2–26 years). Family history was noted in six families. Renal involvement was observed in two children. All patients in our cohort had the R334W variant in NOD2 gene. An asymptomatic carrier sibling with R334W mutation was identified in one family. Methotrexate was used as a first-line agent in all children. Adalimumab, which was commenced in five patients with uveitis, resulted in significant improvement in four patients. The total follow-up duration of the present cohort is 1,063.8 patient-months. Conclusions The possibility of BS should always be considered in patients with arthritis and early ocular involvement. Uveitis is often progressive and refractory to currently available therapies. Systemic involvement appears to remain a significant cause of morbidity and mortality.
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Affiliation(s)
- Rajni Kumrah
- Pediatric Allergy Immunology Unit, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Rakesh Kumar Pilania
- Pediatric Allergy Immunology Unit, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Nitin Kumar Menia
- Department of Ophthalmology, Advanced Eye Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Amit Rawat
- Pediatric Allergy Immunology Unit, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Jyoti Sharma
- Pediatric Allergy Immunology Unit, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Anju Gupta
- Pediatric Allergy Immunology Unit, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Pandiarajan Vignesh
- Pediatric Allergy Immunology Unit, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Ankur Kumar Jindal
- Pediatric Allergy Immunology Unit, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Rashmi Rikhi
- Pediatric Allergy Immunology Unit, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Aniruddha Agarwal
- Department of Ophthalmology, Advanced Eye Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Vishali Gupta
- Department of Ophthalmology, Advanced Eye Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Surjit Singh
- Pediatric Allergy Immunology Unit, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Deepti Suri
- Pediatric Allergy Immunology Unit, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
- *Correspondence: Deepti Suri,
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Das KG, Bhattarai D, Kaur A, Kaur A, Kumrah R, Srivastava P, Rawat A, Singh S. Association of single nucleotide polymorphism rs113420705 of CASP3 in children with Kawasaki disease from North India. J Family Med Prim Care 2022; 11:5404-5409. [PMID: 36505637 PMCID: PMC9731064 DOI: 10.4103/jfmpc.jfmpc_177_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 03/23/2022] [Accepted: 03/28/2022] [Indexed: 12/15/2022] Open
Abstract
Background Kawasaki disease is a pediatric, systemic, vasculitic disorder. Its exact etiology is still unknown. Genetic polymorphisms are being investigated as susceptibility factor for this disorder. These are likely to vary among different populations. Aim To investigate the association of single nucleotide polymorphism (SNP) rs113420705 of CASP3 in Kawasaki disease (KD) from North India. Settings and Design Observational, case-control study. Methods Polymerase chain reaction and bidirectional Sanger sequencing was used for determining genotypes of SNP rs113420705 in 45 cases of KD and 50 healthy age- and sex-matched controls. Allele and genotype frequencies were assessed and compared between the groups. Results Among 45 cases, 32 had TT (71.1%), 13 had CT (28.9%) and none had CC genotype of SNP rs113420705. No significant differences in allele, genotype, or carrier frequencies of rs113420705 were found between the two groups. A comparison was also made between subgroups of KD with coronary abnormality (7 children; 15.5%) and KD with normal coronaries (38 children; 84.4%). The C allele was significantly overexpressed in KD with coronary abnormality group (P = 0.005). However, no difference was noted in the genotype frequencies. Conclusion CT genotype of rs113420705 of CASP3 showed a trend to significance with the occurrence of KD in children in North India. However, we could not establish any association between minor allele C and susceptibility to KD. C allele appeared to be over expressed in children with KD with coronary abnormalities. Larger studies will help us to reach conclusive evidence applicable to all ethnicities.
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Affiliation(s)
- K Gokul Das
- Allergy Immunology Unit, Advanced Pediatrics Centre, PGIMER, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Dharmagat Bhattarai
- Allergy Immunology Unit, Advanced Pediatrics Centre, PGIMER, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Anupriya Kaur
- Genetic Metabolic Unit, Advanced Pediatrics Centre, PGIMER, Post Graduate Institute of Medical Education and Research, Chandigarh, India,Address for correspondence: Dr. Anupriya Kaur, Genetic Metabolic Unit, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh - 160 012, India. E-mail:
| | - Anit Kaur
- Allergy Immunology Unit, Advanced Pediatrics Centre, PGIMER, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Rajni Kumrah
- Allergy Immunology Unit, Advanced Pediatrics Centre, PGIMER, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Priyanka Srivastava
- Genetic Metabolic Unit, Advanced Pediatrics Centre, PGIMER, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Amit Rawat
- Allergy Immunology Unit, Advanced Pediatrics Centre, PGIMER, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Surjit Singh
- Allergy Immunology Unit, Advanced Pediatrics Centre, PGIMER, Post Graduate Institute of Medical Education and Research, Chandigarh, India
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Sil A, Aggarwal R, S S, Sharma S, Vignesh P, Rawat A. Healing With Complication: An Unusual Case of Nasal Tip Ulceration in Leukocyte Adhesion Deficiency Type 1. J Allergy Clin Immunol Pract 2022; 10:2448-2449. [PMID: 35851246 DOI: 10.1016/j.jaip.2022.06.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 06/11/2022] [Accepted: 06/13/2022] [Indexed: 06/15/2023]
Affiliation(s)
- Archan Sil
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Ridhima Aggarwal
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Sivanesan S
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Saniya Sharma
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Pandiarajan Vignesh
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India.
| | - Amit Rawat
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
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Jindal AK, Chaudhary H, Tyagi R, Rawat A, Suri D, Patra PK, Arora K, Chawla S, Vyas S, Arora M, Aggarwal R, Basu S, Bansal R, Sachdeva MUS, Gupta A, Pandiarajan V, Sankhyan N, Suthar R, Sahu JK, Singh M, Mani R, Sharma R, Saka R, Imai K, Ohara O, Nonoyama S, Hammarström L, Chan KW, Lau YL, Singh S. Meningoencephalitis in primary antibody deficiency: Our experience from northwest India. J Neuroimmunol 2022; 371:577952. [PMID: 36030644 DOI: 10.1016/j.jneuroim.2022.577952] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Accepted: 08/13/2022] [Indexed: 11/19/2022]
Abstract
BACKGROUND/OBJECTIVES Patients with primary antibody deficiency (PAD) are predisposed to develop meningoencephalitis, often considered to be enteroviral. However, there is a paucity of literature on this subject, and there are no studies from developing countries. METHODS We analyzed our cohort of children with PAD who developed meningoencephalitis. RESULTS This complication was observed in 13/135 (10.4%) patients with PAD - 5 patients had X-linked agammaglobulinemia (XLA), 7 had common variable immunodeficiency (CVID) and 1 had suspected nuclear factor kappa B essential modulator (NEMO) defect. Mean age at onset of neurological illness was 9.3 years. Presenting features included seizures (n=8), neurodevelopmental delay (n=2), regression of milestones (n=2), and acute flaccid paralysis (n=1). Trough IgG levels were found to be low in 12/13 patients at the time of development of neurological symptoms. Herpes simplex virus (HSV), cytomegalovirus (CMV), and Streptococcus pneumoniae were isolated in 1 each. Eight (72.7%) patients had altered signal hyperintensities in gray matter and deep white matter on magnetic resonance imaging (MRI), while 4 patients showed global cerebral atrophy. All patients were treated with high-dose intravenous immunoglobulin (IVIg). Fluoxetine was given to 3 patients. Eight patients in the present series have died, 3 have recovered with varying degrees of neurological sequelae and 2 patients are showing gradual recovery. CONCLUSIONS To conclude, meningoencephalitis is an uncommon complication in patients with PAD and is associated with high morbidity and mortality. Early diagnosis of immune deficiency and initiation of replacement immunoglobulin therapy may prevent the development of neurological complications.
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Affiliation(s)
- Ankur Kumar Jindal
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India.
| | - Himanshi Chaudhary
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Rahul Tyagi
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Amit Rawat
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Deepti Suri
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Pratap Kumar Patra
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Kanika Arora
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Sanchi Chawla
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Sameer Vyas
- Department of Radiodiagnosis and Imaging, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Munish Arora
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Ridhima Aggarwal
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Suprit Basu
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Reema Bansal
- Department of Ophthalmology, Advanced Eye Centre Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Man Updesh Singh Sachdeva
- Department of Hematology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Anju Gupta
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Vignesh Pandiarajan
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Naveen Sankhyan
- Pediatric Neurology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Renu Suthar
- Pediatric Neurology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Jitendra Kumar Sahu
- Pediatric Neurology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Mini Singh
- Department of Virology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Reeta Mani
- Department of Neurovirology, NIMHANS, Bangalore, India
| | - Rajni Sharma
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Ruchi Saka
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Kohsuke Imai
- Department of Community Pediatrics, Perinatal and Maternal Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Osamu Ohara
- Department of Applied Genomics, Kazusa DNA Research Institute, Kisarazu, Japan
| | - Shigeaki Nonoyama
- Department of Pediatrics, National Defense Medical College, Tokorozawa, Japan
| | - Lennart Hammarström
- Dept. of Biosciences and Nutrition, Karolinska Institutet, Stockholm, Sweden
| | - Koon Wing Chan
- Department of Paediatrics and Adolescent Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Yu Lung Lau
- Department of Paediatrics and Adolescent Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Surjit Singh
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
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Praharaj DL, Rawat A, Gupta A, Arora K, Pilania RK, Bhattad S, Singh S. Adipocytokine profile in children with Kawasaki disease at a mean follow-up period of 5.5 years: A study from North India. World J Clin Pediatr 2022; 11:360-368. [PMID: 36052116 PMCID: PMC9331403 DOI: 10.5409/wjcp.v11.i4.360] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 08/21/2021] [Accepted: 05/14/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Kawasaki disease (KD) is an acute self-limited vasculitis with a predilection for coronary arteries. Children with KD may have altered lipid metabolism and abnormal lipid profiles that may last for prolonged periods. However, there is a paucity of literature on the role of adipocytokines in KD.
AIM To estimate the levels of adipocytokines (adiponectin, leptin and resistin) during the convalescent phase of KD.
METHODS Twenty children, who had KD at least three years earlier, were enrolled in this study. In addition, 20 healthy controls were also enrolled. Clinical and laboratory profiles of patients were obtained from hospital records. Serum adiponectin, leptin and resistin levels were estimated by enzyme-linked immunosorbent assay.
RESULTS Mean age of the patients in the study group was 10.15 ± 3 years and the male: female ratio was 1.5:1. Median serum resistin levels in patients with KD (27.77 ng/mL; [IQR: 18.66, 48.90]) were decreased compared to controls (21.20 ng/mL; [IQR: 14.80, 27.00]) (P = 0.04). Median serum leptin levels in cases and controls were 1.83 ng/mL; (IQR: 1.13, 3.80), and 1.10 ng/mL; (IQR: 0.41, 2.88), respectively (P = 0.09). Median serum adiponectin levels were similar in both cases (12.20 µg/mL; [IQR: 9.76, 17.97]) and controls (13.95 µg/mL; [IQR: 11.17, 22.58]); (P = 0.18). There was no significant difference in all 3 adipocytokines between children with (4/20) and without coronary artery abnormalities (16/20).
CONCLUSION Serum resistin levels were significantly elevated in patients with KD during the convalescent phase compared to controls. Serum leptin levels appeared to be higher in patients with KD, although the difference was not statistically significant. Adiponectin levels were similar in both cases and controls. Raised resistin and leptin levels may partially explain lipid perturbations observed during the convalescent phase of KD.
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Affiliation(s)
- Dibya Lochan Praharaj
- Pediatric Allergy and Immunology Unit, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Amit Rawat
- Pediatric Allergy and Immunology Unit, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Anju Gupta
- Pediatric Allergy and Immunology Unit, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Kanika Arora
- Pediatric Allergy and Immunology Unit, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Rakesh Kumar Pilania
- Pediatric Allergy and Immunology Unit, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Sagar Bhattad
- Pediatric Allergy and Immunology Unit, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Surjit Singh
- Pediatric Allergy and Immunology Unit, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh 160012, India
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48
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Chan KW, Wong CY, Leung D, Yang X, Fok SFS, Mak PHS, Yao L, Ma W, Mao H, Zhao X, Liang W, Singh S, Barbouche MR, He JX, Jiang LP, Liew WK, Le MHT, Muktiarti D, Santos-Ocampo FJ, Djidjik R, Belaid B, Ismail IH, Abdul Latiff AH, Lee WS, Chen TX, Liu J, Jin R, Wang X, Chien YH, Yu HH, Raj D, Raj R, Vaughan J, Urban M, van den Berg S, Eley B, Lee ACW, Isa MS, Ang EY, Lee BW, Yeoh AEJ, Shek LP, Quynh Le NN, Nguyen VAT, Phan Nguyen Lien A, Capulong RD, Mallillin JM, Villanueva JCMM, Camonayan KAB, Vera MD, Casis-Hao RJ, Lobo RCM, Foronda R, Binas VWE, Boushaki S, Kechout N, Phongsamart G, Wongwaree S, Jiratchaya C, Lao-Araya M, Trakultivakorn M, Suratannon N, Jirapongsananuruk O, Chantveerawong T, Kamchaisatian W, Chan LL, Koh MT, Wong KJ, Fong SM, Thong MK, Latiff ZA, Noh LM, de Silva R, Jouhadi Z, Al-Saad K, Vignesh P, Jindal AK, Rawat A, Gupta A, Suri D, Yang J, Au EYL, Kwok JSY, Chan SY, Hui WYF, Chua GT, Duque JR, Cheong KN, Chong PCY, Ho MHK, Lee TL, Wong WHS, Yang W, Lee PP, Tu W, Yang XQ, Lau YL. Targeted Gene Sanger Sequencing Should Remain the First-Tier Genetic Test for Children Suspected to Have the Five Common X-Linked Inborn Errors of Immunity. Front Immunol 2022; 13:883446. [PMID: 35874699 PMCID: PMC9304939 DOI: 10.3389/fimmu.2022.883446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 06/02/2022] [Indexed: 11/13/2022] Open
Abstract
To address inborn errors of immunity (IEI) which were underdiagnosed in resource-limited regions, our centre developed and offered free genetic testing for the most common IEI by Sanger sequencing (SS) since 2001. With the establishment of The Asian Primary Immunodeficiency (APID) Network in 2009, the awareness and definitive diagnosis of IEI were further improved with collaboration among centres caring for IEI patients from East and Southeast Asia. We also started to use whole exome sequencing (WES) for undiagnosed cases and further extended our collaboration with centres from South Asia and Africa. With the increased use of Next Generation Sequencing (NGS), we have shifted our diagnostic practice from SS to WES. However, SS was still one of the key diagnostic tools for IEI for the past two decades. Our centre has performed 2,024 IEI SS genetic tests, with in-house protocol designed specifically for 84 genes, in 1,376 patients with 744 identified to have disease-causing mutations (54.1%). The high diagnostic rate after just one round of targeted gene SS for each of the 5 common IEI (X-linked agammaglobulinemia (XLA) 77.4%, Wiskott–Aldrich syndrome (WAS) 69.2%, X-linked chronic granulomatous disease (XCGD) 59.5%, X-linked severe combined immunodeficiency (XSCID) 51.1%, and X-linked hyper-IgM syndrome (HIGM1) 58.1%) demonstrated targeted gene SS should remain the first-tier genetic test for the 5 common X-linked IEI.
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Affiliation(s)
- Koon-Wing Chan
- Department of Paediatrics and Adolescent Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Chung-Yin Wong
- Department of Paediatrics and Adolescent Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Daniel Leung
- Department of Paediatrics and Adolescent Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Xingtian Yang
- Department of Paediatrics and Adolescent Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Susanna F. S. Fok
- Department of Paediatrics and Adolescent Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Priscilla H. S. Mak
- Department of Paediatrics and Adolescent Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Lei Yao
- Department of Paediatrics and Adolescent Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Wen Ma
- Department of Paediatrics and Adolescent Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Huawei Mao
- Department of Immunology, Ministry of Education Key Laboratory of Major Diseases in Children, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing, China
| | - Xiaodong Zhao
- Children’s Hospital, Chongqing Medical University, Chongqing, China
| | - Weiling Liang
- Shenzhen Primary Immunodeficiency Diagnostic and Therapeutic Laboratory, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - Surjit Singh
- Pediatric Allergy and Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | | | - Jian-Xin He
- Department of Respiratory Medicine, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing, China
| | - Li-Ping Jiang
- Children’s Hospital, Chongqing Medical University, Chongqing, China
| | - Woei-Kang Liew
- Department of Paediatric Medicine, KK Women’s and Children’s Hospital, Singapore, Singapore
| | - Minh Huong Thi Le
- Department of Immuno-Allergology and Rheumatology, National Hospital of Paediatrics, Hanoi, Vietnam
| | - Dina Muktiarti
- Department of Child Health, Faculty of Medicine Universitas Indonesia-Cipto Mangunkusumo Hospital, Jakarta, Indonesia
| | | | - Reda Djidjik
- Department of Medical Immunology, Beni Messous University Hospital Centre, University of Algiers 1, Algiers, Algeria
| | - Brahim Belaid
- Department of Medical Immunology, Beni Messous University Hospital Centre, University of Algiers 1, Algiers, Algeria
| | - Intan Hakimah Ismail
- Clinical Immunology Unit, Department of Paediatrics, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Selangor, Malaysia
| | | | - Way Seah Lee
- Department of Paediatrics, Faculty of Medicine, University Malaya, Kuala Lumpur, Malaysia
| | - Tong-Xin Chen
- Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jinrong Liu
- Department of Respiratory Medicine, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing, China
| | - Runming Jin
- Department of Pediatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaochuan Wang
- Department of Clinical Immunology, Children’s Hospital of Fudan University, Shanghai, China
| | - Yin Hsiu Chien
- Department of Medical Genetics and Pediatrics, National Taiwan University Hospital, Taipei, Taiwan
| | - Hsin-Hui Yu
- Division of Allergy, Immunology and Rheumatology, Department of Pediatrics, National Taiwan University Children’s Hospital, Taipei, Taiwan
| | - Dinesh Raj
- Department of Paediatrics, Holy Family Hospital, University of Delhi, New Delhi, India
| | - Revathi Raj
- Department of Paediatric Haematology, Oncology, Blood and Marrow Transplantation, Apollo Hospitals, Chennai, India
| | - Jenifer Vaughan
- Department of Molecular Medicine and Haematology, National Health Laboratory Services, University of the Witwatersrand, Johannesburg, South Africa
| | - Michael Urban
- Division of Molecular Biology and Human Genetics, University of Stellenbosch Western Cape, Pretoria, South Africa
| | - Sylvia van den Berg
- Department of Immunology, Ampath and Department of Paediatrics and Child Health, University of Pretoria and Steve Biko Academic Hospital, Pretoria, South Africa
| | - Brian Eley
- Department of Paediatrics and Child Health, University of Cape Town and Red Cross War Memorial Children’s Hospital, Cape Town, South Africa
| | - Anselm Chi-Wai Lee
- Children’s Haematology and Cancer Center, Mount Elizabeth Hospital, Singapore, Singapore
| | - Mas Suhaila Isa
- Khoo Teck Puat-National University Children’s Medical Institute, National University Health System, Singapore, Singapore
| | - Elizabeth Y. Ang
- Khoo Teck Puat-National University Children’s Medical Institute, National University Health System, Singapore, Singapore
| | - Bee Wah Lee
- Khoo Teck Puat-National University Children’s Medical Institute, National University Health System, Singapore, Singapore
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Allen Eng Juh Yeoh
- Khoo Teck Puat-National University Children’s Medical Institute, National University Health System, Singapore, Singapore
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Lynette P. Shek
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | | | - Van Anh Thi Nguyen
- Department of Rheumatology, Allergy, and Immunology, Vietnam National Children's Hospital, Hanoi, Vietnam
| | | | | | - Joanne Michelle Mallillin
- Child and Adult Allergy, Asthma and Immunology General Emilio Aguinaldo Memorial Hospital, Cavite, Philippines
| | - Jose Carlo Miguel M. Villanueva
- Section of Allergy and Clinical Immunology, Department of Pediatrics, University of Santo Tomas Hospital, Manila, Philippines
| | | | - Michelle De Vera
- Section of Allergy and Immunology, The Medical City, Pasig, Philippines
| | - Roxanne J. Casis-Hao
- Division of Allergy and Clinical Immunology, Department of Pediatrics, Philippine General Hospital, Manila, Philippines
| | - Rommel Crisenio M. Lobo
- Section of Allergy Asthma and Immunology, Fe del Mundo Medical Center, Quezon City, Philippines
| | - Ruby Foronda
- Department of Pediatrics, University of the East Ramon Magsaysay Memorial Medical Center, Quezon City, Philippines
| | | | - Soraya Boushaki
- Department of Medical Immunology, Beni Messous University Hospital Centre, University of Algiers 1, Algiers, Algeria
- Unit of Genetics, Laboratory of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Sciences and Technology “HouariBoumediene”, Algiers, Algeria
| | - Nadia Kechout
- Department of Immunology, Pasteur Institute of Algeria/Faculty of Medicine, Algiers, Algeria
| | - Gun Phongsamart
- Department of Pediatrics, Queen Sirikit National Institute of Child Health, Bangkok, Thailand
| | - Siriporn Wongwaree
- Department of Pediatrics, Queen Sirikit National Institute of Child Health, Bangkok, Thailand
| | - Chamnanrua Jiratchaya
- Department of Pediatrics, Queen Sirikit National Institute of Child Health, Bangkok, Thailand
| | - Mongkol Lao-Araya
- Department of Pediatrics, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Muthita Trakultivakorn
- Department of Pediatrics, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Narissara Suratannon
- Center of Excellence for Allergy and Clinical Immunology, Division of Allergy, Immunology and Rheumatology, Department of Pediatrics, King Chulalongkorn Memorial Hospital, the Thai Red Cross Society, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Orathai Jirapongsananuruk
- Division of Allergy and Clinical Immunology, Department of Pediatrics, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Teerapol Chantveerawong
- Division of Allergy and Clinical Immunology, Department of Medicine, Phramongkutklao Hospital, Bangkok, Thailand
| | - Wasu Kamchaisatian
- Division of Pediatrics Allergy and Immunology, Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Lee Lee Chan
- Subang Jaya Medical Centre, Subang Jaya, Malaysia
| | - Mia Tuang Koh
- Department of Paediatrics, Faculty of Medicine, University Malaya, Kuala Lumpur, Malaysia
| | - Ke Juin Wong
- Department of Paediatrics, Likas Hospital, Ministry of Health, Sabah, Malaysia
| | - Siew Moy Fong
- Department of Paediatrics, Likas Hospital, Ministry of Health, Sabah, Malaysia
| | - Meow-Keong Thong
- Genetics and Metabolism Unit, Department of Paediatrics, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Zarina Abdul Latiff
- Department of Pediatrics, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Lokman Mohd Noh
- Department of Pediatrics, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
- Department of Paediatrics, Hospital Tunku Azizah, Ministry of Health Malaysia, Kuala Lumpur, Malaysia
| | - Rajiva de Silva
- Department of Immunology, Medical Research Institute, Colombo, Sri Lanka
| | - Zineb Jouhadi
- Department of Pediatric Infectious Diseases, Children’s Hospital CHU Ibn Rochd, University Hassan 2, Casablanca, Morocco
| | - Khulood Al-Saad
- Department of Pediatrics, Salmaniya Medical Complex, Manama, Bahrain
| | - Pandiarajan Vignesh
- Pediatric Allergy and Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Ankur Kumar Jindal
- Pediatric Allergy and Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Amit Rawat
- Pediatric Allergy and Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Anju Gupta
- Pediatric Allergy and Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Deepti Suri
- Pediatric Allergy and Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Jing Yang
- Department of Paediatrics and Adolescent Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Elaine Yuen-Ling Au
- Division of Clinical Immunology, Department of Pathology, Queen Mary Hospital, Hong Kong, Hong Kong SAR, China
| | - Janette Siu-Yin Kwok
- Division of Transplantation and Immunogenetics, Department of Pathology, Queen Mary Hospital, Hong Kong, Hong Kong SAR, China
| | - Siu-Yuen Chan
- Department of Paediatrics and Adolescent Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Wayland Yuk-Fun Hui
- Department of Paediatrics and Adolescent Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Gilbert T. Chua
- Department of Paediatrics and Adolescent Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Jaime Rosa Duque
- Department of Paediatrics and Adolescent Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Kai-Ning Cheong
- Hong Kong Children’s Hospital, Hong Kong, Hong Kong SAR, China
| | | | | | - Tsz-Leung Lee
- Hong Kong Children’s Hospital, Hong Kong, Hong Kong SAR, China
| | - Wilfred Hing-Sang Wong
- Department of Paediatrics and Adolescent Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Wanling Yang
- Department of Paediatrics and Adolescent Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Pamela P. Lee
- Department of Paediatrics and Adolescent Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Wenwei Tu
- Department of Paediatrics and Adolescent Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Xi-Qiang Yang
- Children’s Hospital, Chongqing Medical University, Chongqing, China
| | - Yu Lung Lau
- Department of Paediatrics and Adolescent Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
- *Correspondence: Yu Lung Lau,
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Vignesh P, Anjani G, Kumrah R, Singh A, Mondal S, Nameirakpam J, Jindal A, Suri D, Sharma M, Kaur G, Sharma S, Gupta K, Sreedharanunni S, Rawat A, Singh S. Features of Hemophagocytic Lymphohistiocytosis in Infants With Severe Combined Immunodeficiency: Our Experience From Chandigarh, North India. Front Immunol 2022; 13:867753. [PMID: 35812426 PMCID: PMC9260510 DOI: 10.3389/fimmu.2022.867753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 05/09/2022] [Indexed: 11/18/2022] Open
Abstract
Background Hemophagocytic lymphohistiocytosis (HLH) is characterized by uncontrolled and excessive inflammation leading to high mortality. Aetiology of HLH can be primarily due to genetic causes or secondarily due to infections or rheumatological illness. However, rarely T-cell deficiencies like severe combined immunodeficiency (SCID) can develop HLH. Objective To describe clinical and laboratory features of SCID cases who developed HLH. Methods We collected clinical, laboratory, and molecular details of patients with SCID who developed HLH at our center at Chandigarh, North India. Results Of the 94 cases with SCID, 6 were noted to have developed HLH-like manifestations. Male-female ratio was 5:1. Median (inter-quartile range) age of onset of clinical symptoms was 4.25 months (2-5 months). Median (inter-quartile range) delay in diagnosis was 1 month (1-3.5 months). Family history of deaths was seen in 4 cases. Molecular defects in IL2RG were seen in 5 out of 6 cases. Documented infections include disseminated bacillus calmette-guerin (BCG) infection (n=2), blood stream infections (n=3) with Staphylococcal aureus (n=1), Klebsiella pneumonia (n=1), and Pseudomonas aeruginosa (n=1), pneumonia (influenza H1N1 strain, and K. pneumoniae (n=1). Conclusion Children with SCID can present with HLH-like manifestations secondary to fulminant infections. A high index of suspicion of SCID is needed in infants who present with HLH who have an associated infection or a suggestive family history. Occurrence of HLH-like manifestations in SCID suggests that T-lymphocytes may not have a significant role in immunopathogenesis of HLH.
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Affiliation(s)
- Pandiarajan Vignesh
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
- *Correspondence: Pandiarajan Vignesh, ; Amit Rawat,
| | - Gummadi Anjani
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Rajni Kumrah
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Ankita Singh
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Sanjib Mondal
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Johnson Nameirakpam
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Ankur Jindal
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Deepti Suri
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Madhubala Sharma
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Gurjit Kaur
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Sathish Sharma
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Kirti Gupta
- Department of Histopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Sreejesh Sreedharanunni
- Department of Hematology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Amit Rawat
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
- *Correspondence: Pandiarajan Vignesh, ; Amit Rawat,
| | - Surjit Singh
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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50
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Rawat A, Sharma M, Vignesh P, Jindal AK, Suri D, Das J, Joshi V, Tyagi R, Sharma J, Kaur G, Lau YL, Imai K, Nonoyama S, Lenardo M, Singh S. Utility of targeted next generation sequencing for inborn errors of immunity at a tertiary care centre in North India. Sci Rep 2022; 12:10416. [PMID: 35729272 PMCID: PMC9213413 DOI: 10.1038/s41598-022-14522-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 06/08/2022] [Indexed: 11/09/2022] Open
Abstract
Inborn errors of immunity (IEI) are a heterogeneous group of monogenic disorders that include primary immunodeficiency's and other disorders affecting different aspects of the immune system. Next-Generation Sequencing (NGS) is an essential tool to diagnose IEI. We report our 3-year experience in setting up facilities for NGS for diagnosis of IEI in Chandigarh, North India. We used a targeted, customized gene panel of 44 genes known to result in IEI. Variant analysis was done using Ion Reporter software. The in-house NGS has enabled us to offer genetic diagnoses to patients with IEI at minimal costs. Of 121 patients who were included pathogenic variants were identified in 77 patients. These included patients with Chronic Granulomatous Disease, Severe Combined Immune Deficiency, leukocyte adhesion defect, X-linked agammaglobulinemia, Ataxia Telangiectasia, Hyper-IgE syndrome, Wiskott Aldrich syndrome, Mendelian susceptibility to mycobacterial diseases, Hyper-IgM syndrome, autoimmune lymphoproliferative syndrome, and GATA-2 deficiency. This manuscript discusses the challenges encountered while setting up and running targeted NGS for IEI in our unit. Genetic diagnosis has helped our patients with IEI in genetic counselling, prenatal diagnosis, and accessing appropriate therapeutic options.
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Affiliation(s)
- Amit Rawat
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India.
| | - Madhubala Sharma
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Pandiarajan Vignesh
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Ankur Kumar Jindal
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Deepti Suri
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Jhumki Das
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Vibhu Joshi
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Rahul Tyagi
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Jyoti Sharma
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Gurjit Kaur
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Yu-Lung Lau
- Department of Paediatrics and Adolescent Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Kohsuke Imai
- Department of Pediatric, Perinatal and Maternal Medicine, Tokyo Medical and Dental University, National Defence Medical College, Tokyo, 113-8519, Japan
| | - Shigeaki Nonoyama
- Department of Pediatric, Perinatal and Maternal Medicine, Tokyo Medical and Dental University, National Defence Medical College, Tokyo, 113-8519, Japan
| | - Michael Lenardo
- Laboratory of Immune System Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, 20892-1892, USA
| | - Surjit Singh
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
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