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Hamed HM, Bostany EE, Motawie AA, Abd Al-Aziz AM, Mourad AA, Salama HM, Kamel S, Hassan EM, Helmy NA, El-Saeed GS, Elghoroury EA. The association of TMPRSS6 gene polymorphism with iron status in Egyptian children (a pilot study). BMC Pediatr 2024; 24:105. [PMID: 38341535 PMCID: PMC10858485 DOI: 10.1186/s12887-024-04573-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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 01/18/2024] [Indexed: 02/12/2024] Open
Abstract
Several studies have shown association of single nucleotide polymorphisms (SNPs) of hepcidin regulatory pathways genes with impaired iron status. The most common is in the TMPRSS6 gene. In Africa, very few studies have been reported. We aimed to investigate the correlation between the common SNPs in the transmembrane protease, serine 6 (TMPRSS6) gene and iron indicators in a sample of Egyptian children for identifying the suitable candidate for iron supplementation.Patients and methods One hundred and sixty children aged 5-13 years were included & classified into iron deficient, iron deficient anemia and normal healthy controls. All were subjected to assessment of serum iron, serum ferritin, total iron binding capacity, complete blood count, reticulocyte count, serum soluble transferrin receptor and serum hepcidin. Molecular study of TMPRSS6 genotyping polymorphisms (rs4820268, rs855791 and rs11704654) were also evaluated.Results There was an association of iron deficiency with AG of rs855791 SNP, (P = 0.01). The minor allele frequency for included children were 0.43, 0.45 & 0.17 for rs4820268, rs855791 & rs11704654 respectively. Genotype GG of rs4820268 expressed the highest hepcidin gene expression fold, the lowest serum ferroportin & iron store compared to AA and AG genotypes (p = 0.05, p = 0.05, p = 0.03 respectively). GG of rs855791 had lower serum ferritin than AA (p = 0.04), lowest iron store & highest serum hepcidin compared to AA and AG genotypes (p = 0.04, p = 0.01 respectively). Children having CC of rs11704654 had lower level of hemoglobin, serum ferritin and serum hepcidin compared with CT genotype (p = 0.01, p = 0.01, p = 0.02) respectively.Conclusion Possible contribution of SNPs (rs855791, rs4820268 and rs11704654) to low iron status.
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Grants
- 11010150 National Research Centre, Egypt
- 11010150 National Research Centre, Egypt
- 11010150 National Research Centre, Egypt
- 11010150 National Research Centre, Egypt
- 11010150 National Research Centre, Egypt
- 11010150 National Research Centre, Egypt
- 11010150 National Research Centre, Egypt
- 11010150 National Research Centre, Egypt
- 11010150 National Research Centre, Egypt
- 11010150 National Research Centre, Egypt
- 11010150 National Research Centre, Egypt
- National Research Centre Egypt
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Affiliation(s)
- Hanan M Hamed
- Pediatrics Department, National Research Centre, Dokki, Cairo, 12622, Egypt.
| | - Eman El Bostany
- Pediatrics Department, National Research Centre, Dokki, Cairo, 12622, Egypt
| | - Ayat A Motawie
- Pediatrics Department, National Research Centre, Dokki, Cairo, 12622, Egypt
| | | | - Abbass A Mourad
- Pediatrics Department, National Research Centre, Dokki, Cairo, 12622, Egypt
| | - Hassan M Salama
- Pediatrics Department, National Research Centre, Dokki, Cairo, 12622, Egypt
| | - Solaf Kamel
- Clinical and Chemical Pathology Department, National Research Centre, Dokki, Cairo, 12622, Egypt
| | - Eman M Hassan
- Clinical and Chemical Pathology Department, National Research Centre, Dokki, Cairo, 12622, Egypt
| | - Neveen A Helmy
- Clinical and Chemical Pathology Department, National Research Centre, Dokki, Cairo, 12622, Egypt
| | - Gamila S El-Saeed
- Medical Biochemistry Department, National Research Centre, Dokki, Cairo, 12622, Egypt
| | - Eman A Elghoroury
- Clinical and Chemical Pathology Department, National Research Centre, Dokki, Cairo, 12622, Egypt
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EL-Sahrigy SA, Abdel Rahman AM, Ezzeldin Z, Ibrahim HY, Hamed HM, Hassan EM, Abdelrahman AH, Hassan M. Cytokine pattern in septic preterm neonates before and after sepsis treatment. Gene Reports 2022. [DOI: 10.1016/j.genrep.2022.101603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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El-Beshlawy A, Rabah F, Hamed HM, Mahmoud AAS, Al-Wakeel HAH, Abdelhamid EM, El-Sonbaty MM, El Sissy M. Navigating Hemostasis of Bleeding Among Children With β-Thalassemia. J Pediatr Hematol Oncol 2022; 44:e855-e858. [PMID: 35001059 DOI: 10.1097/mph.0000000000002391] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 12/03/2021] [Indexed: 11/25/2022]
Abstract
Bleeding phenotype is reported in β-thalassemia patients. However, the underlying etiology remains elusive. We aimed to assess coagulation profile and the platelet aggregation in β-thalassemia children with bleeding diathesis. Fifty β-thalassemia children with a positive bleeding history were recruited. Bleeding phenotype was explored through full history taking and thorough clinical examination. Complete blood count, prothrombin time, international normalized ratio, and platelets aggregometry were performed for children with negative workup. Mucosal bleeding was manifest among most of our patients (96%). Two-third of patients had decreased aggregation with ristocetin (68%), adenine di-phosphate (64%), and arachidonic acid (64%). While half of the patients (48%) had deficient response to epinephrine. Collagen, ristocetin, and arachidonic acid induced aggregation were negatively correlated to frequency of blood transfusion (P=0.021, r=-0.325; P<0.001, r=-0.465; P=0.018, r=-0.333, respectively). Aggregation to collagen and epinephrine demonstrated a negative correlation with age (P=0.04, r=-0.287; P=0.03, r=-0.315). Deferiprone was associated with a deficient response to ristocetin and collagen when compared with deferasirox or no chelation (P=0.021 and 0.006, respectively). Impaired ristocetin response was linked to hydroxyurea (P=0.035). Platelets function defect should be considered in β-thalassemia patients with bleeding symptoms.
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Affiliation(s)
| | - Fatma Rabah
- Department of Pediatrics
- Department of Pediatric, Kingston Hospital, NHS Foundation Trust, London, UK
| | | | | | | | | | - Marwa M El-Sonbaty
- Department of Child Health, Medical Research and Clinical Studies Institute, National Research Centre, Cairo, Egypt
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Elshamaa MF, Eryan EF, Hamed HM, Khalifa IA, Kamel S, Ibrahim MH, Kandil D, Farouk H, Raafat M, Haleem DAAE, Mahmoud E, El-Saeed GS, Hashish MMA, Elhamid EMA, Sayed S. Vitamin D receptor gene polymorphisms in chronic kidney disease Egyptian children: effect on biochemical markers of bone mineral disorders. Pediatr Endocrinol Diabetes Metab 2022; 28:188-196. [PMID: 36226529 PMCID: PMC10214938 DOI: 10.5114/pedm.2022.118316] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 04/26/2022] [Indexed: 06/07/2023]
Abstract
INTRODUCTION The aim of this study was to assess the association between four vitamin D receptor (VDR) single nucleotide polymorphisms BsmI (rs1544410), ApaI (rs7975232), FokI (rs2228570) and TaqI (rs731236) and the susceptibility to chronic kidney disease (CKD) in Egyptian children and to evaluate their association with mineral status in these patients. MATERIAL AND METHODS The current study included 305 patients with CKD and 100 apparently healthy children. We measured the serum vitamin D (VD), para-thyroid hormone (PTH) level and fibroblast growth factor 23 (FGF-23) levels by ELISA method. The genotyping of the four VDR gene variants was carried out by PCR-RFLP technique. RESULTS The TaqI AG & the BsmI TT genotypes were associated with a significantly higher risk of CKD. The expression of 25-OH D serum level was decreased in patients with TaqI GG & AG genotypes groups and in patients with BsmI TT genotype group The expression of PTH serum level was increased in patients with BsmI CT genotype group. The expression of FGF-23 serum level was increased in patients with Taq1 AG genotype group. We found 3 specific haplotypes; AGCA, AGCC and GGCA for healthy controls. CONCLUSIONS Our study showed an association between VDR TaqI, BsmI polymorphisms and the susceptibility to CKD. The existence of VDR vari-ants affected the protein expression of VD, FGF-23 and PTH. The AGCA, AGCC and GGCA haplotypes were considered as protec-tive factors against the development of renal nephropathy in our population.
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Affiliation(s)
| | | | | | | | - Solaf Kamel
- Clinical Pathology Department, National Research Centre, Cairo, Egypt
| | - Mona H. Ibrahim
- Clinical Pathology Department, National Research Centre, Cairo, Egypt
| | - Dina Kandil
- Clinical Pathology Department, National Research Centre, Cairo, Egypt
| | - Hebatallah Farouk
- Clinical Pathology Department, National Research Centre, Cairo, Egypt
| | - Mona Raafat
- Clinical Pathology Department, National Research Centre, Cairo, Egypt
| | | | - Eman Mahmoud
- Clinical Pathology Department, National Research Centre, Cairo, Egypt
| | | | | | | | - Shaimaa Sayed
- Pediatrics Department, Cairo University, Cairo, Egypt
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Hamed HM, Motawie AA, Abd Al-Aziz AM, Abou El-Ezz AA, Awad MAM, Yousef RN. Vitamin D and cathelicidin assessment in infection-induced asthma in Egyptian children. Bull Natl Res Cent 2019; 43:39. [DOI: 10.1186/s42269-019-0072-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 02/13/2019] [Indexed: 09/02/2023]
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Abd Al-Aziz AM, Hamed HM, Motawie AA, Abou El-Ezz A, Awad MA, Yousef RN. Vitamin D and cathelicidin serum levels in children with infection induced asthma. Paediatric Asthma and Allergy 2017. [DOI: 10.1183/1393003.congress-2017.pa1317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Motawie AA, Abd Al-Aziz AM, Hamed HM, Fatouh AAA, Awad MAM, El-Ghany AA. Assessment of serum level of corticotropin-releasing factor in primary nocturnal enuresis. J Pediatr Urol 2017; 13:46.e1-46.e5. [PMID: 27887910 DOI: 10.1016/j.jpurol.2016.08.030] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [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: 03/25/2016] [Accepted: 08/24/2016] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Primary nocturnal enuresis is one of the sleep related phenomena characterized by disruption in the relationship between arousal and urination. Corticotropin-releasing factor (CRF) is a neurohormone released from the paraventricular nucleus of the hypothalamus into the median eminence to elicit release of adrenocorticotrophin from the anterior pituitary. It may act to modulate autonomic function and behavior in concert with the endocrine effects. Conflicting animal studies about the role of CRF in micturition, either facilitating or inhibiting, have been raised. It was suggested to be a novel target for treatment of urinary disorders based on the finding that manipulation of CRF in the pontine micturition circuit could affect urodynamic function. AIM The aim was to throw light on the possible role of CRF in primary monosymptomatic nocturnal enuresis by assessing its serum level. SUBJECTS AND METHODS Twenty-nine children aged 8-14 years complaining of primary monosymptomatic nocturnal enuresis and 16 age- and sex-matched healthy children with good toilet control day and night were recruited to the study. History taking, clinical examination, and assessment of serum CRF levels in the morning and evening (9 a.m. and 9 p.m.) were carried out for all patients and controls. RESULTS AND DISCUSSION A positive family history of enuresis was detected in 82.8% of enuretic patients. Serum levels of CRF (both morning and evening) were significantly lower in patients than in controls. Several animal studies suggested that CRF in descending projections from Barrington's nucleus to the lumbosacral parasympathetic neurons is inhibitory to micturition, which supports our results and the assumption that reduction of the evening serum CRF level could have a role in the occurrence of primary monosymptomatic nocturnal enuresis. No significant difference was found between morning and evening CRF serum levels in either cases or controls, which negates our assumption of having a rhythmic pattern of release (figure). No correlations with age were found. According to their history, all our enuretic patients were deep sleepers. Deep sleep and difficult arousal were found to have a major role in primary monosymptomatic nocturnal enuresis. It was proposed that CRF function may allow arousal to occur before micturition to facilitate preparative behaviors. A lower CRF level may explain deep-sleep pattern in children with enuresis. CONCLUSION CRF was deficient in our enuretic children, which may draw attention to the possible pathophysiological implications in primary nocturnal enuresis (either at the level of loss of inhibitory effect on micturition or lack of arousal in response to bladder distension). Further proof studies are recommended.
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Affiliation(s)
- Ayat A Motawie
- Pediatric Department, National Research Centre, Cairo, Egypt
| | | | - Hanan M Hamed
- Pediatric Department, National Research Centre, Cairo, Egypt
| | | | - Mona A M Awad
- Clinical and Chemical Pathology Department, National Research Centre, Cairo, Egypt
| | - Amany Abd El-Ghany
- Clinical and Chemical Pathology Department, National Research Centre, Cairo, Egypt
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Fatouh AAA, Motawie AA, Abd Al-Aziz AM, Hamed HM, Awad MAM, El-Ghany AA, El Bassyouni HT, Shehab MIK, Eid MM. Anti-diuretic hormone and genetic study in primary nocturnal enuresis. J Pediatr Urol 2013; 9:831-7. [PMID: 23246575 DOI: 10.1016/j.jpurol.2012.11.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [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: 06/08/2012] [Accepted: 11/08/2012] [Indexed: 10/27/2022]
Abstract
OBJECTIVE To investigate whether primary nocturnal enuresis (PNE) is related to a disturbance in anti-diuretic hormone (ADH) secretion pattern at night which may be genetically inherited. SUBJECTS AND METHODS This study included 121 children aged 6-18 years with PNE and 45 matched healthy children as controls. Enuretic children were subjected to genetic evaluation and cytogenetic assessment (n = 99). Assay of ADH levels (9-11 am & 9-11 pm) was performed for cases (n = 99) and controls. RESULTS There was a positive family history in 82.4% (autosomal dominant in 35.4% and autosomal recessive in 64.6%). ADH morning and evening values were reversed in cases vs controls with significant difference in morning level. Reversal of circadian rhythm was present in 71.7% of cases and normal rhythm in 28.3% of them. Morning and evening ADH levels revealed significant difference between patients with reversed rhythm and those with normal one, and with controls. Mode of inheritance had no influence on hormonal level. Chromosomal abnormality was detected in 3 cases with reversed ADH rhythm, involving chromosome 22 in two of them. CONCLUSION PNE could be attributed in part to reversed ADH circadian rhythm which may be linked to chromosome 22.
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Hamed HM, El-Sherbini SA, Barakat NA, Farid TM, Rasheed EA. Serum cystatin C is a poor biomarker for diagnosing acute kidney injury in critically-ill children. Indian J Crit Care Med 2013; 17:92-8. [PMID: 23983414 PMCID: PMC3752874 DOI: 10.4103/0972-5229.114829] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [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] [Indexed: 11/09/2022] Open
Abstract
Background: Accurate diagnosis of acute kidney injury (AKI) is problematic especially in critically-ill patients in whom renal function is in an unsteady state. Aim: Our aim was to evaluate the role of serum (S.) cystatin C as an early biomarker of AKI in critically-ill children. Subjects and Methods: S. creatinine and S. cystatin C were measured in 32 critically-ill children who were at risk for developing AKI. AKI was defined by both: Risk,-injury,-failure,-loss, and-endstage renal disease (RIFLE) classification and glomerular filtration rate (GFR) <80 ml/min/1.73 m2. GFR was estimated by both Schwartz formula and S. cystatin C-based equation. Results: S. cystatin C was not statistically higher in AKI patients compared with non-AKI by RIFLE classification (median 1.48 mg/l vs. 1.16 mg/l, P = 0.1) while S. creatinine was significantly higher (median 0.8 mg/dl vs. 0.4 mg/dl, P = 0.001). On estimating GFR by the two equations we found, a lag between rise of S. cystatin C and creatinine denoted by lower GFR by Schwartz formula in four patients, on other hand, six patients had elevated S. cystatin C with low GFR despite normal creatinine and GFR, denoting poor concordance between the two equations and the two markers. The ability of S. creatinine in predicting AKI was superior to S. cystatin with area under the curve (AUC) 0.95 with sensitivity and specificity (100% and 84.6%, respectively) using the RIFLE classification. The same findings were found when using Schwartz formula. Conclusion: S. cystatin C is a poor biomarker for diagnosing AKI in critically-ill children.
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Affiliation(s)
- Hanan M Hamed
- Department of Pediatrics, National Research Centre, Cairo, Egypt
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Abstract
Bone mineral density (BMD) increases during growth until a peak is reached at maturity. The risk of development of postmenopausal osteoporosis depends on the peak bone density and the rate of its subsequent loss. To identify whether low weight at birth could affect the peak bone density, we measured BMD at both the lumbar spine and femoral neck using dual energy X-ray absorptiometry (DXA) in a group of women who had low weight at birth and in a control group of normal birth weight. There was no significant correlation between the weight at birth and the adult BMD. It appears, therefore, that low weight at birth does not influence the peak bone density and that prematurity is not a risk factor for osteoporosis.
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Affiliation(s)
- H M Hamed
- Department of Gynaecology, Princess Royal Hospital, Hull, UK
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Abstract
OBJECTIVE To determine if women who suffer from early pregnancy loss are at increased risk of osteoporosis later in life. DESIGN Part of a community screening project for bone mineral density (BMD). SUBJECTS 392 women aged 50-54 who had had from 0 to 6 miscarriages out of 0 to 8 term pregnancies. TECHNIQUE BMD measured using dual energy X-ray absorptiometry at both the lumbar spine and the proximal femur. RESULTS The mean BMD in nulligravid women was not significantly different from those whose only pregnancies ended in early loss. There was no significant correlation between the BMD at either the lumbar spine or the proximal femur and the number of miscarriages (r = 0.03 and 0.01, respectively). The BMD of the lumbar spine and femoral neck were not affected by parity (P = 0.08 and P = 0.87, respectively). CONCLUSION The risk of osteoporosis was not influenced by parity or the number of previous miscarriages.
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Affiliation(s)
- H M Hamed
- Department of Gynaecology, Princess Royal Hospital, Hull, UK
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