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Rostami P, Sheikhi A. Investigation of class-F power amplifier in the presence of the second and fourth harmonics of input voltage. Sci Rep 2024; 14:7792. [PMID: 38565935 PMCID: PMC10987509 DOI: 10.1038/s41598-024-58494-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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Accepted: 03/29/2024] [Indexed: 04/04/2024] Open
Abstract
In this paper, a thorough theoretical investigation of high-efficiency class-F power amplifier (PA) is undertaken to drive, considering the second and fourth harmonics of input voltage. The precise analytical expressions of the gate-source voltage, drain current, output power, and efficiency are extracted. Maximum normalized output power and maximum drain efficiency from the initial phase and amplitude of the second and fourth harmonics of input gate-voltage can be achieved. The simulation of class-F PA using a GaN CGH40010F transistor has been done to validate the theoretical analysis. Addition of the fourth harmonic gate voltage along with the second harmonic improves the output power and efficiency of the PA by 0.7 dBm and 4.1%. Based on the simulation with realistic elements, a highly efficient PA operating from 1.8 to 2.2 GHz is implemented. The fabricated PA provides an efficiency of 72-87.6%, PAE of 65-80% and an output power of 39.3-41 dBm.
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Affiliation(s)
- Parastoo Rostami
- Engineering Department, Faculty of Engineering, Lorestan University, Khorramabad, 68151-44316, Iran
| | - Akram Sheikhi
- Engineering Department, Faculty of Engineering, Lorestan University, Khorramabad, 68151-44316, Iran.
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Abstract
BACKGROUND Coronavirus disease 2019 (COVID-19) is a disease caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the seventh coronavirus to be linked to human disease. The SARS-CoV-2 virus may have several pathophysiologic interactions with endocrine systems, resulting in disruptions in glucose metabolism, hypothalamus and pituitary function, adrenal function, and mineral metabolism. An increasing amount of evidence demonstrates both the influence of underlying endocrine abnormalities on the outcome of COVID-19 and the effect of the SARS-CoV-2 virus on endocrine systems. However, a systematic examination of the link to pediatric endocrine diseases has been missing. DATA SOURCES The purpose of this review is to discuss the impact of SARS-CoV-2 infection on endocrine systems and to summarize the available knowledge on COVID-19 consequences in children with underlying endocrine abnormalities. For this purpose, a literature search was conducted in EMBASE, and data that were discussed about the effects of COVID-19 on endocrine systems were used in the current study. RESULTS Treatment suggestions were provided for endocrinopathies associated with SARS-CoV-2 infection. CONCLUSIONS With the global outbreak of COVID-19, it is critical for pediatric endocrinologists to understand how SARS-CoV-2 interacts with the endocrine system and the therapeutic concerns for children with underlying problems who develop COVID-19. While children and adults share certain risk factors for SARS-CoV-2 infection sequelae, it is becoming obvious that pediatric responses are different and that adult study results cannot be generalized. While pediatric research gives some insight, it also shows the need for more study in this area.
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Affiliation(s)
| | - Reihaneh Mohsenipour
- Growth and Development Research Center, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyedeh Taravat Sadrosadat
- Universal Scientific Education and Research Network (USERN), Tehran, Iran
- Children's Medical Center, Pediatric Center of Excellence, Tehran University of Medical Sciences, Tehran, Iran
| | - Parastoo Rostami
- Growth and Development Research Center, Department of Endocrinology and Metabolism, Pediatric Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran.
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Katebi L, Rabbani A, Sayarifard F, Mehdizadeh M, Sayarifard A, Sotoudeh A, Abbasi F, Rostami P. Determination of Bone Density by DEXA Method Based on Bone Age and its Comparison with Chronological Age in Chronic Patients. Mediterr J Rheumatol 2023; 34:44-52. [PMID: 37223593 PMCID: PMC10201103 DOI: 10.31138/mjr.34.1.44] [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: 06/12/2021] [Revised: 01/31/2022] [Accepted: 02/15/2022] [Indexed: 05/25/2023] Open
Abstract
Background and Objective Given the growing awareness about the important role of children's age in building bone for a person's life, physicians need to assess bone health in high-risk children for bone density disorders more than before to optimize their bones' density and prevent osteoporosis in future. The aim of this study was to evaluate bone density based on chronological and bone age. Materials and Methods In this cross-sectional study, 80 Patients who have been referred for bone density to the Osteoporosis Centre of the Children's Medical Centre over a one-year period (spring 98 to spring 99) were studied. Bone density was performed for all patients by using DEXA method. Results The z-score mean chronological age for the lumbar spine was -0.8± 1.85 years and bone age was -0.58±1.64 years. The z-score mean chronological age for femoral bone was -1.6±1.02 years and bone age was -1.32± 1.4 years. Conclusion Results showed that in all patients, the difference in the mean Z score of chronological age and bone age of the spine between patients was not significant but for femur was significant. Also, use of corticosteroids leads to significant difference between the two age groups' z-score in femur and spine.
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Affiliation(s)
- Leyla Katebi
- Department of Pediatrics, Faculty of Medicine, Ardabil University of Medical Science, Ardabil, Iran
| | - Ali Rabbani
- Department of Pediatrics, School of Medicine, Children’s Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Sayarifard
- Department of Pediatrics, School of Medicine, Children’s Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehrzad Mehdizadeh
- Department of Radiology, Faculty of Medicine, Tehran University of Medical Science, Tehran, Iran
| | - Azadeh Sayarifard
- Department of Community Medicine, Faculty of Medicine, Tehran University of Medical Science, Tehran, Iran
| | - Arya Sotoudeh
- Department of Pediatrics, Faculty of Medicine, Ardabil University of Medical Science, Ardabil, Iran
| | - Farzaneh Abbasi
- Department of Pediatrics, Faculty of Medicine, Ardabil University of Medical Science, Ardabil, Iran
| | - Parastoo Rostami
- Department of Pediatrics, Faculty of Medicine, Ardabil University of Medical Science, Ardabil, Iran
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Ahmadinasab H, Motaghinejad M, Nosratabad BA, Bozorgniahosseini S, Rostami P, Jafarabadi GS, Motevalian M. Hepato-Protection Effect of Curcumin Against Methylphenidate-Induced Hepatotoxicity: Histological and Biochemical Evidences. Int J Prev Med 2022; 13:65. [PMID: 35706867 PMCID: PMC9188892 DOI: 10.4103/ijpvm.ijpvm_435_20] [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: 07/28/2020] [Accepted: 09/22/2021] [Indexed: 11/13/2022] Open
Abstract
Background As a psychostimulant agent, methylphenidate (MPH) abuse can cause serious liver damage. Studies have documented the hepatoprotective impacts of curcumin on liver damage. According to this definition, the purpose of this study is to explain the hapatoprotective effects of curcumin against the hepatotoxicity induced by MPH. Methods Seventy rats were equally divided into seven groups (10 rats per group). Groups 1 and 2 received normal saline (0.7 mL/rat) and MPH (10 mg/kg), respectively for 21 days. Groups 3, 4, 5, and 6 concurrently received MPH (10 mg/ kg) and curcumin (10, 20, 40, and 60 mg/kg, respectively) for 21 days. Group 7 was treated with curcumin (60 mg/kg) alone for 21 days. The hepatic function test key enzymes such as AST, ALP, and histology of liver tissue (ALT), and alkaline phosphatase (ALP) levels was studied in the blood samples, and also, the histopathological changes and cell density changes were evaluated in the liver tissue. Results The latest studies have shown that the administration of MPH induces rises in the AST, ALT, and ALP levels and induces degeneration changes in histopathology, whereas curcumin administration at doses of 40 and 60 mg/kg reduced the elevation of MPH-induced hepatic enzyme and inhibited histopathological degeneration in the MPH-treated classes. Curcumin alone (60 mg/kg) did not alter the biochemical and histological parameters. Conclusions Curcumin can function as a hepatoprotective agent against MPH-induced hepatotoxicity.
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Affiliation(s)
- Haleh Ahmadinasab
- Razi Drug Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Majid Motaghinejad
- Chronic Respiratory Disease Research Center(CRDRC), National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran,Address for correspondence: Dr. Majid Motaghinejad, Chronic Respiratory Disease Research Center(CRDRC), National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran. E-mail: motaghinejad6@gmail.
| | | | | | - Parastoo Rostami
- Razi Drug Research Center, Iran University of Medical Sciences, Tehran, Iran
| | | | - Manijeh Motevalian
- Razi Drug Research Center, Iran University of Medical Sciences, Tehran, Iran,Departemnt of Pharmacology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
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Setoodeh A, Panjeh-Shahi S, Bahmani F, Vand-Rajabpour F, Jalilian N, Sayarifard F, Abbasi F, Sayarifard A, Rostami P, Parvaneh N, Akhavan-Niaki H, Ahmadifard M, Tabrizi M. Molecular and clinical characterization of autoimmune polyendocrinopathy-candidiasis-ectodermal dystrophy syndrome (APECED) in Iranian non-Jewish patients: report of two novel AIRE gene pathogenic variants. Orphanet J Rare Dis 2022; 17:10. [PMID: 34991662 PMCID: PMC8734050 DOI: 10.1186/s13023-021-02170-z] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 12/19/2021] [Indexed: 12/22/2022] Open
Abstract
Objective Autoimmune polyendocrinopathy-candidiasis-ectodermal dystrophy syndrome (APECED) is a rare autosomal recessive systemic autoimmune disease caused by mutations in the autoimmune regulator (AIRE) gene. Incidence of this genetic disorder is estimated at 1/90,000–200,000 worldwide and 1/6500–9000 in genetically isolated populations such as Iran. Here, we investigated AIRE gene mutations in eight independent Iranian non-Jewish families. Methods We sequenced the coding regions of the AIRE gene and documented mutations which were further confirmed in respective parents. Results In total, 11 cases from 8 independent families were recruited. Mucosal candidiasis, Addison’s disease and hypoparathyroidism were the most common clinical manifestations in these patients. One novel homozygous splice acceptor mutation (c.308-1G>C), and one novel heterozygous stop-gain mutation (c.1496delC) combined with a known heterozygous c.232T>C missense mutation were found. Moreover, we observed previously described splice donor (c.1095+2T>A), frameshift (c.967-979del), stop-gain (c.415C>T), and missense (c.62C>T) mutations among the patients. All results were co-segregated in parents. Conclusion Here, we reported two novel mutations in the AIRE gene leading to APECED. Our data could provide insight into the phenotypic and genotypic spectrum of APECED in the non-Jewish Iranian population. These findings, in addition to future functional assays, can elucidate disease-causing mechanisms related to the AIRE gene and assist in genetic counseling and diagnosis.
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Affiliation(s)
- Aria Setoodeh
- Division of Endocrinology and Metabolism, Growth and Development Research Center, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Samareh Panjeh-Shahi
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Fariba Bahmani
- Division of Endocrinology and Metabolism, Growth and Development Research Center, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Vand-Rajabpour
- Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Nazanin Jalilian
- Department of Clinical Biochemistry, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Fatemeh Sayarifard
- Division of Endocrinology and Metabolism, Growth and Development Research Center, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Farzaneh Abbasi
- Division of Endocrinology and Metabolism, Growth and Development Research Center, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Azadeh Sayarifard
- Growth and Development Research Center, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Parastoo Rostami
- Division of Endocrinology and Metabolism, Growth and Development Research Center, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Nima Parvaneh
- Division of Allergy and Clinical Immunology, Department of Pediatrics, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Haleh Akhavan-Niaki
- Department of Medical Genetics, Faculty of Medicine, Babol University of Medical Sciences, Babol, Iran
| | - Mohamadreza Ahmadifard
- Department of Medical Genetics, Faculty of Medicine, Babol University of Medical Sciences, Babol, Iran
| | - Mina Tabrizi
- Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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Mirnia K, Dindarian S, Mohammadi S, Rostami P, Mohammadi H. A suggested screening method for hypothyroidism in very preterm and/or very low birth weight neonates. Rev paul pediatr 2022; 40:e2020376. [PMID: 35544902 PMCID: PMC9095062 DOI: 10.1590/1984-0462/2022/40/2020376in] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 04/01/2021] [Indexed: 11/30/2022]
Abstract
Objective: To assess thyroid function in very preterm or very low birth weight (VLBW) neonates by measuring combination levels of thyroid-stimulating hormone TSH and free T4 (FT4) Methods: Inclusion criteria were defined as all very preterm (gestational age <32 weeks) or VLBW (birth weight ≤1500g) neonates with initial Thyroid Function Test (TFT) who were admitted to the Neonatal Intense Care Unit (NICU) of Taleghani Hospital, Tabriz, Iran, from March 2015 to March 2016. Exclusion criteria were the absence of initial TFT with any major congenital anomaly. The primary value of TSH was evaluated at 3–5 days, and mean levels of TSH with FT4 were measured at 2, 4, and 8-weeks. Results: Ninety-five neonates with a mean gestational age of 29.5 weeks were included, and the mean levels of thyrotropin and FT4 at postnatal week two were 4.4mIU/L and 1.4ng/dL, respectively. Two of the patients had serum TSH concentration >25mIU/L that was considered as permanent primary hypothyroidism. Among nine hypothyroxinemia cases, two had elevated TSH levels (10.8±0.4mIU/L at the end of 8 weeks) and normal FT4 concentration, and were considered transient hypothyroidism. Seven cases had normal TSH levels (1.6±1.0mIU/L at 2 weeks, 3.5±2.8mIU/L at 8 weeks) and low FT4 concentrations. Conclusions: Combined venous TSH and FT4 concentration at the end of the first postnatal month can be an efficient approach for detecting neonatal hypothyroidism.
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Mohsenipour R, Abbasi F, Setoodeh A, Sayarifard F, Rostami P, Moinfar Z, Amoli MM, Tajdini P, Rabbani A. Early and delayed puberty among Iranian children with obesity. MINERVA ENDOCRINOL 2020. [PMID: 32744439 DOI: 10.23736/s0391-1977.20.03168-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND It has been hypothesized that puberty onset is disturbed, as the children gain more weight. This study aims to investigate the prevalence and risk factors of the puberty disturbances among children with obesity in Tehran. METHODS This study was performed as a cross-sectional study, investigating 168 children with obesity from Tehran. Iran from March 2018 to February 2019. BMI percentile more than 95% was considered as the inclusion criteria. RESULTS 78 (46.4%) of the assessed children were females. The mean weight, height, BMI were 89.65(+11.01) kg, 169.88 (+8.32) centimeters and 31.13(+3.8) kg/m2, respectively. There was no difference between males and females regarding the early puberty (p-value= 0.098) but delayed puberty was significantly higher among males (p-value= 0.029). Our results indicated higher birth weight is associated with earlier onset of obesity in children (p-value= 0.044). CONCLUSIONS Our study demonstrated no association between obesity and early puberty in girls; however, boys with obesity had delayed puberty. We also found higher birth weight is associated with earlier onset of obesity, putting light on the importance of preventive interventions.
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Affiliation(s)
- Reihaneh Mohsenipour
- Growth and Development Research Center, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran -
| | - Farzaneh Abbasi
- Growth and Development Research Center, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Aria Setoodeh
- Growth and Development Research Center, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Sayarifard
- Growth and Development Research Center, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Parastoo Rostami
- Growth and Development Research Center, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Zeinab Moinfar
- Health Deputy, Tehran University of Medical sciences, Tehran, Iran
| | - Mahsa M Amoli
- Metabolic Disorders Research Center, Endocrinology and Metabolism Molecular-cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Parisa Tajdini
- Growth and Development Research Center, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Rabbani
- Growth and Development Research Center, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
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Rostami P, Hosseinpour S, Ashrafi MR, Alizadeh H, Garshasbi M, Tavasoli AR. Primary creatine deficiency syndrome as a potential missed diagnosis in children with psychomotor delay and seizure: case presentation with two novel variants and literature review. Acta Neurol Belg 2020; 120:511-516. [PMID: 31222513 DOI: 10.1007/s13760-019-01168-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 02/16/2019] [Accepted: 06/06/2019] [Indexed: 11/24/2022]
Abstract
Creatine is the main source of energy for the brain. Primary creatine deficiency syndromes (PCDSs) are inborn error of metabolism of creatine synthesis. Symptoms of central nervous system involvement are the most common clinical manifestations in these disorders. We reviewed medical records of all genetically confirmed patients diagnosed by whole exome sequencing who were referred to Myelin and Neurodegenerative Disorders Clinic, Children's Medical Center, Tehran, Iran, from May 2016 to Dec 2018. A literature review was conducted on clinical and genomic variability of PCDS to compare our patients with previously reported cases. We report two patients with creatine deficiency among a cohort of 550 registered cases out of which 200 patients had a genetically confirmed neurodegenerative disorder diagnosis. The main complain in the first patient with creatine transporter (CRTR) deficiency was seizure and genetic study in this patient identified a novel hemizygote variant of "c.92 > T; p.Pro31Leu" in the first exon of SLC6A8 gene. The second patient with guanidinoacetate methyltransferase (GAMT) deficiency had an unknown motor and speech delay as the striking manifestation and molecular assay revealed a novel homozygote variant of "c.134G > A; p.Trp45*" in the first exon of GAMT gene. PCDSs usually are associated with nonspecific neurologic symptoms. The first presented case had a mean delayed diagnosis of 5 years. Therefore, in children with unexplained neurologic features including developmental delay and/or regression, mental disability and repeated seizures without any significant findings in metabolic studies, PCDSs can be considered as a differential diagnosis and molecular analysis can be helpful for the precise diagnosis and treatment.
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Affiliation(s)
- Parastoo Rostami
- Division of Pediatric Endocrinology and Metabolism, Growth and Development Research Center, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Sareh Hosseinpour
- Myelin Disorders Clinic (Iranian Neurometabolic Registry), Pediatric Neurology Division, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahmoud Reza Ashrafi
- Myelin Disorders Clinic (Iranian Neurometabolic Registry), Pediatric Neurology Division, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Houman Alizadeh
- Division of Pediatric Radiology, Department of Pediatrics, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Masoud Garshasbi
- Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Teheran, Iran.
| | - Ali Reza Tavasoli
- Myelin Disorders Clinic (Iranian Neurometabolic Registry), Pediatric Neurology Division, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran.
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Eghbali M, Abiri M, Talebi S, Noroozi Z, Shakiba M, Rostami P, Alimadadi H, Najafi M, Yazarlou F, Rabbani A, Modarressi MH. Genotype-phenotype correlation and description of two novel mutations in Iranian patients with glycogen storage disease 1b (GSD1b). Orphanet J Rare Dis 2020; 15:35. [PMID: 32005221 PMCID: PMC6995048 DOI: 10.1186/s13023-019-1266-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 08/05/2019] [Accepted: 12/02/2019] [Indexed: 11/10/2022] Open
Abstract
Background Glycogen storage disease (GSD) is a rare inborn error of the synthesis or degradation of glycogen metabolism. GSD1, the most common type of GSD, is categorized into GSD1a and GSD1b which caused by the deficiency of glucose-6-phosphatase (G6PC) and glucose-6-phosphate transporter (SLC37A4), respectively. The high rates of consanguineous marriages in Iran provide a desirable context to facilitate finding the homozygous pathogenic mutations. This study designates to evaluate the clinical and genetic characteristics of patients with GSD1b to assess the possible genotype-phenotype correlation. Results Autozygosity mapping was performed on nineteen GSD suspected families to suggest the causative loci. The mapping was done using two panels of short tandem repeat (STR) markers linked to the corresponding genes. The patients with autozygous haplotype block for the markers flanking the genes were selected for direct sequencing. Six patients showed autozygosity in the candidate markers for SLC37A4. Three causative variants were detected. The recurrent mutation of c.1042_1043delCT (p.Leu348Valfs*53) and a novel missense mutation of c.365G > A (p.G122E) in the homozygous state were identified in the SLC37A4. In silico analysis was performed to predict the pathogenicity of the variants. A novel whole SLC37A4 gene deletion using long-range PCR and sequencing was confirmed as well. Severe and moderate neutropenia was observed in patients with frameshift and missense variants, respectively. The sibling with the whole gene deletion has shown both severe neutropenia and leukopenia. Conclusions The results showed that the hematological findings may have an appropriate correlation with the genotype findings. However, for a definite genotype-phenotype correlation, specifically for the clinical and biochemical phenotype, further studies with larger sample sizes are needed.
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Affiliation(s)
- Maryam Eghbali
- Department of Medical Genetics, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Abiri
- Department of Medical Genetics and Molecular Biology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Saeed Talebi
- Department of Medical Genetics and Molecular Biology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Zahra Noroozi
- Department of Molecular Medicine, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Marjan Shakiba
- Department of Pediatric Endocrinology and Metabolism, Mofid Children's Hospital, Shahid Beheshti University of medical sciences, Tehran, Iran
| | - Parastoo Rostami
- Growth and Development Research Center, Department of Endocrinology, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Hosein Alimadadi
- Department of Gastroenterology, Children's Medical Center, Tehran University of Medical Science, Tehran, Iran
| | - Mehri Najafi
- Department of Gastroenterology, Children's Medical Center, Tehran University of Medical Science, Tehran, Iran
| | - Fatemeh Yazarlou
- Department of Medical Genetics, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Rabbani
- Growth and Development Research Center, Department of Endocrinology, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
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Habibian N, Amoli MM, Abbasi F, Rabbani A, Alipour A, Sayarifard F, Rostami P, Dizaji SP, Saadati B, Setoodeh A. Role of vitamin D and vitamin D receptor gene polymorphisms on residual beta cell function in children with type 1 diabetes mellitus. Pharmacol Rep 2019; 71:282-288. [DOI: 10.1016/j.pharep.2018.12.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 12/02/2018] [Accepted: 12/27/2018] [Indexed: 01/08/2023]
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Ahmadifard M, Kajbafzadeh A, Panjeh‐Shahi S, Vand‐Rajabpour F, Ahmadi‐Beni R, Arshadi H, Setoodeh A, Rostami P, Tavakkoly‐Bazzaz J, Tabrizi M. Molecular investigation of mutations in androgen receptor and 5‐alpha‐reductase‐2 genes in 46,XY Disorders of Sex Development with normal testicular development. Andrologia 2019; 51:e13250. [DOI: 10.1111/and.13250] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 01/16/2019] [Accepted: 01/17/2019] [Indexed: 12/11/2022] Open
Affiliation(s)
- Mohamadreza Ahmadifard
- Medical Genetics Department, School of Medicine Tehran University of Medical Sciences Tehran Iran
- Medical Genetics Department, School of Medicine Babol University of Medical Sciences Babol Iran
| | - Abdolmohamad Kajbafzadeh
- Pediatric Urology Research Center Children's Medical Center, Tehran University of Medical Sciences Tehran Iran
| | - Samareh Panjeh‐Shahi
- Medical Genetics Department, School of Medicine Babol University of Medical Sciences Babol Iran
| | - Fatemeh Vand‐Rajabpour
- Medical Genetics Department, School of Medicine Tehran University of Medical Sciences Tehran Iran
| | - Reza Ahmadi‐Beni
- Medical Genetics Department, School of Medicine Tehran University of Medical Sciences Tehran Iran
| | - Hamid Arshadi
- Pediatric Urology Research Center Children's Medical Center, Tehran University of Medical Sciences Tehran Iran
| | - Aria Setoodeh
- Growth and Development Research Center, Division of Endocrinology and Metabolism, Children’s Medical Center Tehran University of Medical Sciences Tehran Iran
| | - Parastoo Rostami
- Growth and Development Research Center, Division of Endocrinology and Metabolism, Children’s Medical Center Tehran University of Medical Sciences Tehran Iran
| | - Javad Tavakkoly‐Bazzaz
- Medical Genetics Department, School of Medicine Tehran University of Medical Sciences Tehran Iran
| | - Mina Tabrizi
- Medical Genetics Department, School of Medicine Tehran University of Medical Sciences Tehran Iran
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Tavasoli AR, Parvaneh N, Ashrafi MR, Rezaei Z, Zschocke J, Rostami P. Clinical presentation and outcome in infantile Sandhoff disease: a case series of 25 patients from Iranian neurometabolic bioregistry with five novel mutations. Orphanet J Rare Dis 2018; 13:130. [PMID: 30075786 PMCID: PMC6091055 DOI: 10.1186/s13023-018-0876-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Accepted: 07/18/2018] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Infantile Sandhoff disease (ISD) is a GM2 gangliosidosis that is classified as a lysosomal storage disorder. The most common symptoms of affected individuals at presentation are neurologic involvement. Here we report clinical course and demographic features in a case series of infantile Sandhoff disease. Enzymatically and some genetically proven cases of ISD were extracted from the Iranian Neurometabolic Registry (INMR) in Children's Medical Center, Iran, Tehran from December 2010 to December 2016. RESULT Twenty five cases of infantile SD (13 female, 12 male) were included in this study. The age range of patients was 9-24 months with a mean of 15.8 months. The consanguinity rate of parents affected families was about 80%. The mean age of patients at disease onset was 6.4 months and the mean age at diagnosis was 14 months. Patients were diagnosed with a mean delay of 7.8 months. Eleven of patients died due to aspiration pneumonia and intractable seizure. The most common features at presentation (92%) were developmental delay or regression in speech and cognitive domains. Cherry red spots were detected in 17 patients (68%). Organomegaly was detected only in two patients. Enzyme studies showed marked reductions of both Hexosaminidase A and B in all patients. HEXB gene mutation studies performed in eight patients identified 6 different mutations, which five of them were novel. CONCLUSION Infantile SD should be considered for each child presented with neurologic symptoms such as developmental delay and regression and cherry red spots in ophthalmic examination. Organomegaly is not a frequent clinical finding in infantile SD. Additionally; there are a genetic heterogenisity among Iranian patients.
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Affiliation(s)
- Ali Reza Tavasoli
- Myelin Disorder Clinic (Iranian Neurometabolic Registery), Pediatric Neurology Division, Neurometabolic Registry Center, Children’s Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Nima Parvaneh
- Division of Allergy and Clinical Immunology, Research Center for Immunodeficiencies, Children’s Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahmoud Reza Ashrafi
- Myelin Disorder Clinic (Iranian Neurometabolic Registery), Pediatric Neurology Division, Neurometabolic Registry Center, Children’s Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Rezaei
- Myelin Disorder Clinic (Iranian Neurometabolic Registery), Pediatric Neurology Division, Neurometabolic Registry Center, Children’s Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Johannes Zschocke
- Division of Human Genetics, Medical University Innsbruck, Innsbruck, Austria
| | - Parastoo Rostami
- Growth and Development Research Center, Division of Endocrinology and metabolism, Children’s Medical Center, Tehran University of Medical Sciences, Tehran, Iran
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Ashrafi MR, Rezaei Z, Heidari M, Nikbakht S, Malamiri RA, Mohammadi M, Zamani GR, Badv RS, Rostami P, Movahedinia M, Qorbani M, Amanat M, Tavasoli AR. The First Report of Relative Incidence of Inherited White Matter Disorders in an Asian Country Based on an Iranian Bioregistry System. J Child Neurol 2018; 33:255-259. [PMID: 29333903 DOI: 10.1177/0883073817751804] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [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] [Indexed: 11/17/2022]
Abstract
Childhood leukodystrophies are a fast-growing field of pediatric neurology practice. Epidemiologic studies on the incidence of these disorders in children show different results. This is the first report of childhood leukodystrophies incidence from Iran. The enrolled patients were recruited from the neurometabolic bioregistry system that was organized in 2010 in the Children's Medical Center, Tehran, Iran. Herein is reported the incidence rate of leukodystrophies in those patients who were residents of 2 big popular provinces near Iran's capital city Tehran, with an average child population of 2 988 800 children. Ninety cases of leukodystrophies from Tehran and Alborz provinces who were registered between 2010 and 2016 in the bioregistry system were enrolled in this study. The annual incidence of inherited white matter disorders was 3.01/100 000, the highest number compared with those found in other studies using similar methods throughout the world. One of the main cause of this higher incidence could be the higher number of consanguineous marriages in Iran.
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Affiliation(s)
- Mahmoud Reza Ashrafi
- 1 Pediatric Neurology Division, Myelin Disorders Clinic, Children's Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Rezaei
- 1 Pediatric Neurology Division, Myelin Disorders Clinic, Children's Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, Tehran, Iran
| | - Morteza Heidari
- 2 Pediatric Neurology Division, Alborz University of Medical Sciences, Karaj, Iran
| | - Sedigheh Nikbakht
- 1 Pediatric Neurology Division, Myelin Disorders Clinic, Children's Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Azizi Malamiri
- 3 Department of Pediatric Neurology, Golestan Medical, Educational, and Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mahmoud Mohammadi
- 1 Pediatric Neurology Division, Myelin Disorders Clinic, Children's Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, Tehran, Iran
| | - Gholam Reza Zamani
- 1 Pediatric Neurology Division, Myelin Disorders Clinic, Children's Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Shervin Badv
- 1 Pediatric Neurology Division, Myelin Disorders Clinic, Children's Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, Tehran, Iran
| | - Parastoo Rostami
- 4 Pediatric Endocrinology and Metabolic Division, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mojtaba Movahedinia
- 1 Pediatric Neurology Division, Myelin Disorders Clinic, Children's Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, Tehran, Iran
| | - Mostafa Qorbani
- 5 Non-Communicable Disease Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Man Amanat
- 1 Pediatric Neurology Division, Myelin Disorders Clinic, Children's Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Reza Tavasoli
- 1 Pediatric Neurology Division, Myelin Disorders Clinic, Children's Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, Tehran, Iran
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14
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Beitelshees M, Hill A, Rostami P, Jones CH, Pfeifer B. Pressing diseases that represent promising targets for gene therapy. Discov Med 2017; 24:313-322. [PMID: 29373809 PMCID: PMC9890200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Over time, there has been a growing interest in the application of gene therapy within the healthcare industry as demonstrated by the nearly 3,000 clinical trials associated with gene therapy that are listed in clinicaltrials.gov. However, there are various difficulties associated with gene therapy that have limited the realization of licensed gene therapies to only a handful of treatments. Furthermore, efforts to develop gene therapeutics have been narrowly focused and most clinical trials have sought to develop treatments for cancer (64.6%), monogenic diseases (10.5%), infectious diseases (7.4%), and cardiovascular diseases (7.4%). In addition, nearly 70% of clinical trials have utilized viral-based delivery systems, despite various concerns associated with this strategy. Each of these factors highlights the lack of diversity in the development of gene therapeutics that should be addressed. In recent years, developments in gene manipulation and delivery such as CRISPR and non-viral vectors (e.g., liposomes) demonstrate promise for improving outcomes for gene therapy. The increased fidelity and capacity afforded by these technologies provide the potential to improve upon contemporary gene therapy approaches and enable the development of treatments for less-emphasized disorders. In this review, we provide a summary of gene delivery technology and discuss various developments in gene therapy technology. We conclude by proposing several genetic conditions that represent promising targets for gene therapy given recent developments in gene delivery and manipulation.
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Affiliation(s)
- M. Beitelshees
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York, USA
| | - A. Hill
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York, USA,Abcombi Biosciences Inc., Buffalo, New York, USA
| | - P. Rostami
- Abcombi Biosciences Inc., Buffalo, New York, USA
| | - C. H. Jones
- Abcombi Biosciences Inc., Buffalo, New York, USA,Correspondence to: ,
| | - B.A. Pfeifer
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York, USA,Department of Biomedical Engineering, University at Buffalo, The State University of New York, Buffalo, New York, USA,Correspondence to: ,
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15
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Sotoudeh A, Rostami P, Nakhaeimoghadam M, Mohsenipour R, Rezaei N. Pericentric Inversion of Chromosome 9 in an Infant With Ambiguous Genitalia. Acta Med Iran 2017; 55:655-657. [PMID: 29228532] [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] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/02/2017] [Indexed: 06/07/2023] Open
Abstract
Pericentric inversion of Chromosome 9 is one of the most common chromosomal abnormalities, which could be associated with various manifestations in some cases. Herein, a patient is presented with ambiguous genitalia that karyotyping revealed pericentric inversion of Chromosome 9 (p12,q13). Pericentric inversion of Chromosome 9 could be considered in the list of differential diagnosis of those with ambiguous genitalia, while chromosomal karyotype and culture could be recommended in children with ambiguous genitalia.
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Affiliation(s)
- Arya Sotoudeh
- Growth and Development Research Center, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran. AND Department of Pediatric Endocrinology, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Parastoo Rostami
- Growth and Development Research Center, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran. AND Department of Pediatric Endocrinology, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Nakhaeimoghadam
- Growth and Development Research Center, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran. AND Department of Pediatric Endocrinology, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Reihaneh Mohsenipour
- Growth and Development Research Center, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran. AND Department of Pediatric Endocrinology, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Nima Rezaei
- Research Center for Immunodeficiencies, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran. AND Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran. AND Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran
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16
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Tavasoli AR, Shervin Badv R, Zschocke J, Ashrafi MR, Rostami P. Early infantile presentation of 3-methylglutaconic aciduria type 1 with a novel mutation in AUH gene: A case report and literature review. Brain Dev 2017; 39:714-716. [PMID: 28438368 DOI: 10.1016/j.braindev.2017.04.007] [Citation(s) in RCA: 6] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Revised: 03/29/2017] [Accepted: 04/02/2017] [Indexed: 01/06/2023]
Abstract
3-Methylglutaconic aciduria is a member of inborn errors of leucine metabolism pathway. 3-Methylglutaconic aciduria type I (MGA1) causes neurological problems which are present during infancy or childhood but the diagnosis may be delayed until adulthood. Here we report a 3years old patient with developmental delay from a relative parent's that his medical evaluations include analyses of urinary organic acid and blood acylcarnitine showed high level of 3-methylglutacoic acid, 3-hydroxyisovaleric acid and increased level of 3-hydroxyisovalerylcarnitine respectively. Further evaluation and genetic tests revealed a novel homozygous mutation of variant c.179del G (p.Gly60Valfs*12) in exon 1 of the AUH gene that was compatible with the diagnosis of MGA1. In segregation analysis of his family, both parents were heterozygous for the respective mutation, confirming obligate parental carrier status and segregation of the mutation.
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Affiliation(s)
- Ali Reza Tavasoli
- Pediatric Neurology Division, Neurometabolic Registry Center, Children's Medical Center, Tehran University of Medical Science, Tehran, Iran
| | - Reza Shervin Badv
- Pediatric Neurology Division, Neurometabolic Registry Center, Children's Medical Center, Tehran University of Medical Science, Tehran, Iran
| | - Johannes Zschocke
- Division of Human Genetics, Medical University Innsbruck, 6020 Innsbruck, Austria
| | - Mahmood Reza Ashrafi
- Pediatric Neurology Division, Neurometabolic Registry Center, Children's Medical Center, Tehran University of Medical Science, Tehran, Iran
| | - Parastoo Rostami
- Division of Endocrinology and Metabolism, Department of Pediatrics, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran.
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17
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Rostami P, Ashcroft DM, Tully MP. ISQUA17-2435QUALITATIVE EVALUATION OF THE IMPLEMENTATION OF A NATIONALLY USED MEDICATION SAFETY DATA COLLECTION TOOL IN ENGLAND. Int J Qual Health Care 2017. [DOI: 10.1093/intqhc/mzx125.79] [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: 11/13/2022] Open
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18
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Yaghmaei B, Rostami P, Varzaneh FN, Gharib B, Bazargani B, Rezaei N. Methylmalonic acidemia with emergency hypertension. Nefrologia 2015; 36:75-6. [PMID: 26522662 DOI: 10.1016/j.nefro.2015.08.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Revised: 06/17/2015] [Accepted: 08/27/2015] [Indexed: 11/25/2022] Open
Affiliation(s)
- Bahareh Yaghmaei
- Department of Pediatrics, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Parastoo Rostami
- Department of Pediatrics, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran.
| | - Farnaz Najmi Varzaneh
- Research Center for Immunodeficiencies, Children's Medical Center, Tehran, Iran; Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Behdad Gharib
- Department of Pediatrics, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Behnaz Bazargani
- Department of Pediatrics, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Nima Rezaei
- Research Center for Immunodeficiencies, Children's Medical Center, Tehran, Iran; Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Universal Scientific Education and Research Network (USERN), Tehran, Iran
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19
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Parvaneh N, Quartier P, Rostami P, Casanova JL, de Lonlay P. Inborn errors of metabolism underlying primary immunodeficiencies. J Clin Immunol 2014; 34:753-71. [PMID: 25081841 DOI: 10.1007/s10875-014-0076-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [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: 04/09/2014] [Accepted: 07/02/2014] [Indexed: 01/19/2023]
Abstract
A number of inborn errors of metabolism (IEM) have been shown to result in predominantly immunologic phenotypes, manifesting in part as inborn errors of immunity. These phenotypes are mostly caused by defects that affect the (i) quality or quantity of essential structural building blocks (e.g., nucleic acids, and amino acids), (ii) cellular energy economy (e.g., glucose metabolism), (iii) post-translational protein modification (e.g., glycosylation) or (iv) mitochondrial function. Presenting as multisystemic defects, they also affect innate or adaptive immunity, or both, and display various types of immune dysregulation. Specific and potentially curative therapies are available for some of these diseases, whereas targeted treatments capable of inducing clinical remission are available for others. We will herein review the pathogenesis, diagnosis, and treatment of primary immunodeficiencies (PIDs) due to underlying metabolic disorders.
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Affiliation(s)
- Nima Parvaneh
- Research Center for Immunodeficiencies, Tehran University of Medical Sciences, Tehran, Iran,
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20
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Rostami P, Setoodeh A, Rabbani A, Nakhaei-Moghadam M, Najmi-Varzaneh F, Rezaei N. A Randomized Clinical Trial of Insulin Glargine and Aspart, Compared to NPH and Regular Insulin in Children with Type 1 Diabetes Mellitus. Iran J Pediatr 2014; 24:173-8. [PMID: 25535536 PMCID: PMC4268837] [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] [Subscribe] [Scholar Register] [Received: 02/24/2013] [Accepted: 12/25/2013] [Indexed: 11/03/2022]
Abstract
OBJECTIVE Appropriate treatment of patients with Type 1 diabetes mellitus (T1DM) is necessary to avoid further complications. This study was performed to compare the efficacy of insulin Glargine and Aspart with NPH insulin and regular insulin regimen in a group of children with T1DM. METHODS Forty patients with T1DM were enrolled in this study. During run-in, all subjects were treated with conventional therapy consisting of twice-daily NPH and thrice-daily regular. Following randomization, 20 subjects received Glargine and Aspart and 20 subjects received NPH and Regular insulin. FINDINGS Mean HbA1c was 8.8% and 8.6% at first and 8.4% and 8.2% at the end of study for subjects randomized initially to Glargine and Aspart and for those randomized to NPH and Regular, respectively (P>0.05). Mean fasting blood glucose (FBS) of the subjects randomized initially to Glargine and Aspart was 217±101 mg/dL, with no significant difference to 196±75 mg/dL for those randomized to NPH and Regular (P=0.48). This was also true at the end of the study. The difference in total cholesterol and triglyceride between the two groups in the beginning of study and at the end did not show any significance. CONCLUSION The current study showed no significant difference in glycemic control [Glycated hemoglobin (HbA1c) and FBS] and lipid profile (total cholesterol and triglyceride) between two regimes.
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Affiliation(s)
| | - Aria Setoodeh
- 1Department of Pediatrics;,* Corresponding Author; Address: Children’s Medical Center Hospital, Dr. Qarib St, Keshavarz Blvd, Tehran 14194, Iran E-mail:
| | - Ali Rabbani
- 1Department of Pediatrics;,2Growth and Development Research Center;
| | | | | | - Nima Rezaei
- 3Research Center for Immunodeficiencies, Children’s Medical Center;,4Department of Immunology, Molecular Immunology Research Center, School of Medicine; Tehran University of Medical Sciences, Tehran, Iran
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21
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Elguero S, Patel B, Rostami P, Liu J, Hurd W. Estrogen supplementation in the early luteal phase as treatment for unexplained recurrent pregnancy loss. Fertil Steril 2013. [DOI: 10.1016/j.fertnstert.2013.07.1018] [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: 10/26/2022]
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22
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Rostami P, Mahmoudi E, Sotoudeh A, Nakhaeimoghadam M, Lurkin I, Zwarthoff EC, Rezaei N. Epidermal nevus in association with some uncommon manifestations. Acta Dermatovenerol Croat 2013; 21:268-270. [PMID: 24476618] [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] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Affiliation(s)
| | | | | | | | | | | | - Nima Rezaei
- Nima Rezaei, MD, PhD, Children's Medical Center Hospital, Dr. Qarib St., Keshavarz Blvd., Tehran 14194, Iran;
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23
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Nakhaeimoghadam M, Rostami P, Zare-Shahabadi A, Mehdizadeh M, Rabbani A, Rezaei N. Hypothalamic hamartoma in an unusual case with delayed puberty. Acta Med Iran 2013; 51:819-821. [PMID: 24390956] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2013] [Accepted: 12/21/2013] [Indexed: 06/03/2023] Open
Abstract
Hypothalamic hamartoma (HH) is a rare intracranial lesion that usually presents with classic triad of central precocious puberty, gelastic epilepsy, and developmental delay. Herein, a 14-year old boy is presented in whom the diagnosis of HH was made by magnetic resonance imaging. While he did not have any complain of precocious puberty, he surprisingly suffered from delay in puberty. The definite diagnosis of HH can only be made by appropriate imaging, in a case with atypical feature of delay in puberty and in the absence of gelastic epilepsy. To our best knowledge, this is the first case of HH who is presented with delay in puberty as of first manifestation.
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Affiliation(s)
- Maryam Nakhaeimoghadam
- Research Center for Children and Adolescents Health, Zahedan University of Medical Sciences, Zahedan, Iran.
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24
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Rostami P, Sotoudeh A, Nakhaeimoghadam M, Rabbani A, Rezaei N. Insulin edema in a child with diabetes mellitus type 1. Turk J Pediatr 2012; 54:309-311. [PMID: 23094546] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Despite the essential role of insulin in the management of patients with diabetes mellitus type 1, insulin use can cause a variety of adverse effects, such as hypoglycemia and weight gain. Herein, we describe an adolescent girl with type 1 diabetes mellitus diagnosed one year ago, who presented with edema of the lower extremities approximately two weeks after an increase in the insulin dose; other causes of edema were excluded. Spontaneous recovery was observed in the patient.
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Affiliation(s)
- Parastoo Rostami
- Department of Pediatric Endocrinology, Children's Medical Center, Tehran, Iran
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25
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Zarrindast MR, Meshkani J, Rezayof A, Beigzadeh R, Rostami P. Nicotinic acetylcholine receptors of the dorsal hippocampus and the basolateral amygdala are involved in ethanol-induced conditioned place preference. Neuroscience 2010; 168:505-13. [PMID: 20381593 DOI: 10.1016/j.neuroscience.2010.03.019] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2009] [Revised: 02/25/2010] [Accepted: 03/09/2010] [Indexed: 12/29/2022]
Abstract
The purpose of this study was to evaluate whether nicotinic acetylcholine receptors of the dorsal hippocampus and the basolateral amygdala (BLA) can potentiate ethanol response in the conditioned place preference (CPP) paradigm. I.p. administration of different doses of ethanol (0.25-1 g/kg) did not induce CPP. However, the higher dose of the drug (1.5 g/kg i.p.) induced place aversion. Furthermore, microinjection of nicotine (0.5-1 microg/rat) into both CA1 regions (intra-CA1) and the BLA (intra-BLA) did not produce a significant CPP. Interestingly, intra-CA1 or -BLA administration of nicotine plus ethanol (0.5 g/kg) during conditioning phase significantly induced a strong CPP. Microinjection of mecamylamine, the nicotinic acetylcholine receptor antagonist, into the CA1 regions or into the BLA did not alter CPP. However, intra-CA1 or -BLA microinjection of mecamylamine (1-4 microg/rat) reversed the response induced by the microinjection of nicotine (1 microg/rat, intra-CA1 or -BLA) plus ethanol (0.5 g/kg i.p.) in the CPP paradigm. On the other hand, the microinjection of nicotine (0.5-1.5 microg/rat) into the BLA, but not into the CA1 regions before the testing phase potentiated the response of ethanol on the expression of conditioned place preference. Moreover, intra-CA1 administration of nicotine plus ethanol increased the locomotor activity on the test day which was reversed by pretreatment with mecamylamine, while other treatments had no effect on locomotor activity. It can be concluded that the activation of nicotinic acetylcholine receptors of the dorsal hippocampus and the basolateral amygdala can potentiate the ethanol response in the CPP paradigm.
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Affiliation(s)
- M R Zarrindast
- School of Advanced Medical Technologies and Iranian National Center for Addiction Studies, Tehran University of Medical Sciences, Tehran, Iran.
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26
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Guerrero AL, Laherrán E, Gutiérrez F, Martín-Polo J, Iglesias F, Alcázar C, Peralta J, Rostami P. Apolipoprotein E genotype does not associate with disease severity measured by Multiple Sclerosis Severity Score. Acta Neurol Scand 2008; 117:21-5. [PMID: 17883422 DOI: 10.1111/j.1600-0404.2007.00908.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVES During the last years, the association between apolipoprotein E (APOE) polymorphism and disease severity in multiple sclerosis (MS) has been studied with conflicting results. As a result of a considerable individual variation in the clinical course of MS, there is no consensus method for measuring progression using single assessments of disability. Recently, Multiple Sclerosis Severity Score (MSSS) method has been proposed for comparing disease progression using single data. We evaluate in our population if there is any correlation between APOE genotype and severity according to MSSS. METHODS We studied 82 patients followed up in our Neurology Unit throughout the year 2005, diagnosed with MS, and with disease duration of at least 2 years. We collected data concerning demographic and clinical variables including age of onset, disease duration, Expanded Disability Status Scale (EDSS) score and the total number of relapses. When reached, we determined the latency to EDSS scores of 4.0 and 6.0. We calculated progression index (PI) and relapse rate (RR). We ascertained MSSS for our patients in the global MSSS table. RESULTS We found four patients heterozygous for the E2 allele and 16 for the E4 allele. No patient was homozygous for E2 or E4. RR (P = 0.017 with 95% CI: 0.005-0.57) and PI (P = 0.016 with 95% CI: 0.004-0.38) were significantly lower in E4 carriers. MSSS scores were not associated with carriership of E2 or E4. CONCLUSION Our results show no effect of the APOE genotype on the severity of MS measured by MSSS, as a recently published meta-analysis has noticed. So, our data do not support a role for APOE in MS severity, in spite of the seeming influence shown using other measures such as PI. MSSS is probably the best method to measure severity with a single measure of disability and should be used more frequently when performing genetic research.
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Affiliation(s)
- A L Guerrero
- Neurology Unit, Hospital Río Carrión, Palencia, Spain.
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Abstract
The effects of an intraperitoneal (i.p.) injection of different doses of sildenafil, a cyclic guanosin monophosphate (cGMP) specific phosphodiesterase type 5 (PDE 5) inhibitor, on memory retention of young (2-month-old) and middle aged (12-month-old) male Wistar rats were investigated. Passive avoidance behaviour was studied in a one trial learning, step--through type, passive avoidance task utilizing the natural preference of rats for a dark environment. In each category (young or middle-aged) different groups of rats received vehicle or sildenafil (1, 3, 10, 20 mg*kg(-1), i.p.) immediately after training and one group remained uninjected serwing as control. Retention latencies were measured 48 h later. To asses a possible non-specific proactive effect of sildenafil, the response latencies in a group of rats not receiving foot shock were also tested. The results showed that the post-training i.p. administration of sildenafil did not facilitate retention performance of a passive avoidance response in both young and middle aged rats compared to control or vehicle groups. Also, sildenafil did not affect response latencies in rats not having received the footshock on the training trial, indicating that sildenafil does not show a non-specific proactive affect on retention performance. The comparison of retention time between young and middle aged rats showed that the memory of the latter had been significantly reduced. In conclusion, this study suggests that sildenafil has no effects on memory retention in Wistar rats.
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Affiliation(s)
- M Shafiei
- Razi Institute of Drug Research, Iran University of Medical Sciences, P.O. Box 14155-6183, Tehran, Iran
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Abstract
BACKGROUND Angiotensin Converting Enzyme Inhibitors (ACEIs) like enalapril are extremely effective in the treatment of hypertension and heart failure. One of the most important side-effects of these drugs which can lead to cessation of therapy is a persistant dry cough, induced because of increased bradykinin levels in the lung. Although antitussive alkaloids like codeine are effective in suppressing this cough, they too present a wide range of side-effects, most notably addiction. OBJECTIVE In a previous work we were able to show that noscapine, a non-narcotic antitussive agent, was able to decrease enalapril induced cough in guinea pigs. In this work, papaverine, another non-narcotic alkaloid found in opium latex was tested in the guinea pig model for antitussive activity. METHOD Cough was induced in enalapril pretreated guinea pigs by forcing the animals to inspire capsaicin aerosol in an air-tight chamber. Coughs were recorded in control animals and in those which had received different doses of papaverine. Characteristic changes in chamber air pressure, were detected by a pressure transducer. RESULTS . At low doses (0.5 and 0.25 mg/kg) papaverine was able to decrease enalapril induced cough. CONCLUSION. This effect was not mediated by the action of the drug on mu receptors and was only observed in animals treated with enalapril.
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Affiliation(s)
- S A Ebrahimi
- Razi Institute for Drug Research, Iran University for Medical Sciences, P.O. Box 14155-6183, Tehran, Iran
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29
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Zarrindast MR, Nasehi M, Rostami P, Rezayof A, Fazli-Tabaei S. Repeated administration of dopaminergic agents in the dorsal hippocampus and morphine-induced place preference. Behav Pharmacol 2005; 16:85-92. [PMID: 15767843 DOI: 10.1097/00008877-200503000-00003] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The aim of the present experiments was to investigate whether repeated intra-hippocampal CA1 (intra-CA1) administration of dopaminergic agents can affect morphine-induced conditioned place preference (CPP). Effects of repeated intra-CA1 injections of dopamine (DA) receptor agonists and antagonists on morphine-induced CPP in rats were investigated using an unbiased 3-day schedule of place conditioning. Animals receiving once-daily subcutaneous (s.c.) injections of morphine (1-9 mg/kg) or saline (1.0 ml/kg, s.c.) showed a significant place preference in a dose-dependent manner: the maximum response was observed with 3 mg/kg morphine. Three days' intra-CA1 injections of apomorphine (0.25-1 microg/rat) followed by 5 days free of the drug, significantly decreased morphine CPP (1 and 3 mg/kg, s.c.). Moreover, pre-treatment with the highest dose of apomorphine (1 microg/rat) altered the effect of morphine to an aversive response. The morphine (1 and 3 mg/kg) CPP was also significantly decreased in animals that previously received three intra-CA1 injections of SKF 38393 (2-9 microg/rat), quinpirole (1-3 microg/rat) or sulpiride (1-3 microg/rat), and significantly increased in animals that had previously received three intra-CA1 injections of SCH 23390 (0.02 microg/rat). The 3-day pre-treatment with apomorphine, SKF 38393 or quinpirole reduced locomotor activity in the test session, while SCH 23390 and sulpiride did not have any influence on locomotor activity. It is concluded that repeated injections of DA receptor agents in the dorsal hippocampus, followed by 5 days free of the drugs, can affect morphine reward.
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Affiliation(s)
- M-R Zarrindast
- Department of Pharmacology and Iranian National Center for Addiction Studies, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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30
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Abstract
Angiotensin Converting Enzyme Inhibitors (ACEI) like captopril and enalapril, can induce persistant cough in man. Noscapine, an antitussive alkaloid, can be used to suppress ACEI-induced cough. Some workers have suggested a role for bradykinin in precipitation of ACE-induced cough. Work carried out in our laboratory has shown noscapine to be a non-competitive inhibitor of bradykinin in guinea pig ileum. It is therefore possible that noscapine suppresses cough by blocking the effect of bradykinin receptor activation in the airways. Guinea pigs were placed in a cough-chamber connected to an air pump and a pressure transducer. Capsaicin was sprayed into the chamber and cough was recorded as a distinctive change in air pressure inside the cough-chamber. Animals treated with 1 mg/kg captopril and enalapril for 7 days, showed increased cough response. Ten microgram/kg FR190997, a non-peptide agonist of the bradykinin B2 receptor, also increased the cough response. Noscapine at 0.5, 1 and 2 mg/kg was able to reverse the effects of ACEI and FR190997. Naloxone, a specific opioid receptor inhibitor, did not block the antitussive effects of noscapine in enalapril or FR190997 treated guinea pigs. This antitussive effect of noscapine is not mediated via the mu, kappa or delta opioid receptors. It is therefore possible that noscapine exerts its antitussive action by interfering with the bradykinin cough mediation.
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Affiliation(s)
- S A Ebrahimi
- Razi Institute for Drug Research, Iran University for Medical Sciences, Tehran, Iran
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31
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Abstract
In this study, the influence of GABAergic agents, imipramine and their interactions on memory retention have been investigated. Intracerebroventricular (i.c.v.; 1-6 microg/rat) or intraperitoneal (i.p.; 5-40 mg/kg) injection of imipramine decreased memory retention. i.c.v. administration of GABA receptor agonists baclofen and muscimol also reduced memory retention. The combination of i.p. or i.c.v. injection of imipramine with a low dose of muscimol (1 microg/rat, i.c.v.) induced a higher decrease in memory retention. The higher dose of GABA(B) receptor antagonist CGP35348 [p-(3-aminopropyl)-p-diethoxymethyl-phosphinic acid] (10 microg/rat) increased memory retention by itself, and decreased the response induced by baclofen or imipramine. Bicuculline (1, 2 and 4 microg/rat, i.c.v.) tends to increase memory retention by itself. Furthermore, bicuculline in same doses reduced the response induced by muscimol or imipramine, but it did not show interaction with the latter drugs. It is concluded that the GABA(B) receptor mechanism is involved in memory impairment induced by imipramine.
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Affiliation(s)
- M R Zarrindast
- Department of Pharmacology, Tehran University of Medical Science and Department of Biology, Shaheed-Beheshti University, Tehran, Iran.
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Zarrindast MR, Bakhsha A, Rostami P, Shafaghi B. Effects of intrahippocampal injection of GABAergic drugs on memory retention of passive avoidance learning in rats. J Psychopharmacol 2002; 16:313-9. [PMID: 12503830 DOI: 10.1177/026988110201600405] [Citation(s) in RCA: 77] [Impact Index Per Article: 3.5] [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] [Indexed: 11/16/2022]
Abstract
The effect of post-training intrahippocampal injection of gamma-aminobutyric acid (GABA) receptor agonists and antagonists, immediately after a training session on memory retention of passive avoidance learning in rats, was measured in the presence and absence of physostigmine. Post-training treatments were carried out in all the experiments. The different doses of the GABAA receptor agonist muscimol (2, 4 and 6 microg/rat) decreased memory retention in rats dose-dependently. The higher response was obtained with 6 microg/rat of the drug. When the GABAA receptor antagonist bicuculline (0.5, 1, 2 and 4 microg/rat) was administered, only one dose of the drug (1 microg/rat) increased memory retention; however, the antagonist reduced the effect of muscimol. The GABAB receptor agonist, baclofen (0.25, 0.5, 1 and 2 microg/rat) also reduced memory retention in the animals. Intrahippocampal injection of lower doses of the GABAB receptor antagonist CGP35348 (P-[3-aminopropyl]-p-diethoxymethyl-phosphinic acid) (2.5, 5, 10 microg/rat) did not effect memory retention, although the higher doses of the drug (25 and 50 microg/rat) decreased memory retention. The doses of antagonist (2.5, 5 and 10 microg/rat), which did not elicit any response alone, reduced the effect of baclofen. The inhibitory response of CGP35348 was also decreased by bicuculline. In another series of experiments, physostigmine improved memory retention. The GABA receptor agonists, muscimol and baclofen, as well as the GABA receptor antagonists bicuculline and CGP35348, decreased the effect of physostigmine. Atropine decreased memory retention by itself and potentiated the response of muscimol and baclofen. It is concluded that GABAA and GABAB receptor activation may be involved in the impairment of memory retention.
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Affiliation(s)
- M R Zarrindast
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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33
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Abstract
The effect of GABA receptor agonists and antagonists on anxiety behavior in rats in the elevated-plus-maze has been investigated. The increase in two parameters of %open arm entries (%OAE) and %time spent in the open arms (%OAT) and decrease in the %time spent in closed arm (%CAT) was considered as antianxiety effects. Intracerebroventricular (i.c.v.) injection of different doses of the GABA(A) receptor agonist muscimol (0.25, 0.5, and 1 microg/rat) increased %OAE and %OAT and decreased %CAT in rats dose-dependently. The higher response was obtained with 1 microg/rat of the drug. Neither icv (0.05, 0.1, and 0.2 microg/rat) nor intraperitoneal (i.p.) (1, 2, and 4 mg/kg) injection of the GABA(B) receptor agonist baclofen altered %OAE, %OAT, and %CAT. However, the GABA(B) receptor antagonist CGP35348 (5, 10, and 30 microg/rat i.c.v.) increased %OAE and %OAT and decreased %CAT in the animals. The response induced by injection of muscimol (0.5 microg/rat i.c.v.) or administration of CGP35348 (10 microg/rat i.c.v.) was reduced by i.c.v. (1, 2, and 4 microg/rat) or i.p. (0.25, 0.5, and 0.75 mg/kg) injection of the GABA(A) receptor antagonist bicuculline, except the effect of CGP35348 on %CAT which was not significantly altered by i.p. administration of bicuculline. Ip but not i.c.v. administration of bicuculline by itself reduced both %OAE and %OAT but did not alter %CAT. None of the drugs altered the locomotor activity of the animals. The current findings support our hypothesis that the anxiolytic effects of GABA(B) antagonist are mediated by autoreceptor blockade-induced release of endogenous GABA, which in turn activates postsynaptic GABA(A) receptors.
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Affiliation(s)
- M Zarrindast
- Department of Pharmacology, Medical School, Tehran University of Medical Sciences, Tehran, Iran
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