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1.
BMC Neurol ; 22(1): 162, 2022 May 02.
Artigo em Inglês | MEDLINE | ID: mdl-35501714

RESUMO

BACKGROUND: Duchenne muscular dystrophy (DMD) is the most common muscular dystrophy in the pediatric population. The manifestations of this disease include progressive muscle weakness, gait dysfunction, and motor impairment, leading to a loss of ambulation by the age of 13 years. Molecular diagnosis is the standard diagnostic tool for DMD. This study aimed to investigate disease progression and genetic patterns in Iranian ambulant boys and to find the correlation between genotypes and motor function phenotypes. METHODS: This study was performed on 152 DMD patients. Clinical history, including the disease phenotype, steroid therapy, and the North Star Ambulatory Assessment (NSAA) score, was taken for all the patients. Molecular diagnoses were confirmed by multiplex ligation-dependent probe amplification and next-generation sequencing tests. RESULTS: A total of 152 Iranian DMD patients were examined in this study. The mean age at the time of disease onset was 4.04 ± 2.00 years, and the mean age at diagnosis was 5.05 ± 2.08 years. The mean age of ambulation loss was 10.9 years. Contracture was reported in 38.9% of cases. In terms of age, the mean total NSAA score showed a peak at 4 years of age, with a mean NSAA score of 24. Annual changes in the NSAA score were determined for all cases, based on the mutation type and exon site. Deletion mutation was found in 79.1% of cases, duplication in 6.8%, nonsense in 12.8%, and splice site in 1.4%. The most common single exon deletion was exon 44 (5.3%), and the most common multiexon deletions were attributed to exons 45-50 and exons 45-52 (4.6%). The results did not indicate any correlation between the mutation type and age at the time of disease onset, loss of ambulation age, and wheelchair dependence; however, a significant association was found between contracture and mutation type. The results showed a significant difference in the NSAA score between the deletion and nonsense groups at the age of 3 years (P = 0.04). No significant correlation was found between the phenotype and exon site. Overall, 91.1% of the study population had a history of corticosteroid use, and 54.1% showed compliance with rehabilitation therapy. CONCLUSION: This study demonstrated the phenotypes and mutational features of Iranian DMD boys and provided information regarding the natural motor history of the disease, disease progression, diagnosis, and status of DMD management in Iran. The present findings can promote the development of clinical trials and future advanced molecular therapies in Iran.


Assuntos
Contratura , Distrofia Muscular de Duchenne , Criança , Contratura/genética , Progressão da Doença , Éxons , Humanos , Irã (Geográfico)/epidemiologia , Distrofia Muscular de Duchenne/epidemiologia , Distrofia Muscular de Duchenne/genética
2.
BMC Pediatr ; 22(1): 708, 2022 Dec 12.
Artigo em Inglês | MEDLINE | ID: mdl-36503502

RESUMO

OBJECTIVES: This study aimed to analyze the health-related quality of life (HRQoL) of patients with spinal muscular atrophy (SMA) based on the type of SMA, demographic and clinical features and compare HRQoL of these patients with a matched healthy control group.  METHODS: This was a case-control study of Patients with SMA in Iran. Sixty-six patients with SMA type II and III aged 8-18 years and also 264 healthy age, sex, and socio-economic matched individuals were enrolled. To assess the quality of life, we used the Persian version of the KIDSCREEN-27. RESULTS: The health-related quality of life between children with type II and type III SMA was not significant in all 5 subscales. However, HRQoL in healthy children was significantly higher than in SMA children in all 5 subscales. CONCLUSION: The quality of life in children with SMA was lower than the healthy control group in all subscales, and physical well-being and psychosocial aspects are the main domains of life impaired by SMA disease. However, no significant difference between the quality of life in children with SMA type II and type III was observed.


Assuntos
Atrofia Muscular Espinal , Qualidade de Vida , Criança , Humanos , Estudos de Casos e Controles , Nível de Saúde , Irã (Geográfico)
3.
J Neurogenet ; 31(3): 161-169, 2017 09.
Artigo em Inglês | MEDLINE | ID: mdl-28687063

RESUMO

Sarcoglycanopathies (SGCs) which are caused by mutations in SGCA, SGCB, SGCG or SGCD genes are a subgroup of autosomal-recessive limb-girdle-muscular-dystrophies (LGMD2). Although frequencies of mutations in these genes are different among populations, mutations in SGCA and SGCD, respectively, have the highest and lowest frequencies in most populations. Here, we report the proportion of mutations in SGC genes among a group of Iranian SGCs patients. Clinical features and results of SGC genes screening of 25 SGCs probands are presented. Large deletion mutations are confirmed with MLPA assays. In total, 15 candidate disease causing mutations were observed in the SGCA, SGCB, SGCG and SGCD genes; ten were novel. Fourteen (56%), seven (28%), three (12%) and one (4%) patient, respectively, carried mutations in SGCB, SGCG, SGCD and SGCA. The findings suggest that LGMD2E is the most common form of SGCs in the Iranian population and that LGMD2D is the rarest. Twelve LGMD2E cases carried the same mutation. To the best of knowledge, the mutation spectrum in SGCs is being reported for the first time in Iranian population. The finding will be beneficial for screening and genetic-counseling of SGCs patients in Iran.


Assuntos
Mutação/genética , Sarcoglicanopatias/epidemiologia , Sarcoglicanopatias/genética , Adolescente , Adulto , Criança , Saúde da Família , Feminino , Técnicas Genéticas , Haplótipos , Humanos , Irã (Geográfico)/epidemiologia , Masculino , Estudos Retrospectivos , Adulto Jovem
4.
Epilepsy Behav ; 33: 69-72, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24632356

RESUMO

BACKGROUND: Psychosocial problems seem to be common in epilepsy, and they could negatively affect the social affairs and networking of adolescents with epilepsy. They could cause decreased self-esteem and social performance, leading to isolation and civil discrimination. This study was performed to assess the quality of life (QOL) of a group of adolescents with epilepsy in Iran. METHODS: An analytic cross-sectional study was performed in 197 young Iranian adolescents with epilepsy. To measure the QOL of these cases, the Persian version of the QOL in Epilepsy Inventory for Adolescents 48 (QOLIE-AD-48) scale was used. RESULTS: The mean total score of the scale was 61.5±10.4. The highest mean was in the school behavior domain (83.85±12.27), while the lowest mean was in the domain of attitudes toward epilepsy (22.45±15.78). There was a significant correlation between QOL and age, number of drugs taken, and frequency of seizures per year. Sixty-six percent of the adolescents with epilepsy had never talked to their friends or teachers about their disease. CONCLUSION: This study revealed an unsatisfactory state of the QOL of adolescents with epilepsy in our population in comparison with other studies. This indicates the need for greater concern about the psychological status and risk factors for the QOL of adolescents with epilepsy in Iran.


Assuntos
Epilepsia/psicologia , Qualidade de Vida/psicologia , Autoimagem , Adolescente , Criança , Estudos Transversais , Feminino , Nível de Saúde , Inquéritos Epidemiológicos , Humanos , Irã (Geográfico) , Masculino , Saúde Mental , Inquéritos e Questionários
5.
Iran J Child Neurol ; 17(4): 45-54, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38074927

RESUMO

Objectives: Breath holding spells (BHS) are a type of syncope in children that is commonly seen in the first years of life. Although these attacks do not cause serious damage to the child's brain, in severe or repeated cases, they expose the brain to hypoxia and cause a lot of stress in parents. In these cases, the clinician should consider therapy. The purpose of this study is to investigate the effectiveness of Risperidone in the treatment of BHS in children visiting the neurology clinic of the Children's Medical Center Hospital. Materials & Methods: In this randomized clinical trial, the statistical population included patients with the history of Breath Holding spells grades 2 to 3 (after ruling out of seizure disorders) over one year old, visiting the neurology clinic of Tehran Children's Medical Center in 2019. The subjects were randomly selected from patients visiting the clinic using a table of random numbers from the admit ion list. After providing the necessary explanations and obtaining informed consent from their parents, they were treated with low-dose Risperidone (maximum 1 mg) for three months. The patients were observed for three months in terms of frequency and severity of spells monthly. Results: In this study, the median (25th and 75th percentile) age of subjects was 2.3 (2.0-2.6) years. Both the number and severity of seizures in the subjects had a statistically significant decrease in the period after treatment with Risperidone (P<0.001). The studied boys and girls experienced statistically significant decrease in terms of both the frequency of spells (P-value of 0.002 and 0.039) and intensity of seizures (P=0.016) and P=0.008), respectively after treatment with Risperidone. Also, in the studied children under 2 years old and over 2 years old, both the frequency (P=0.021 and P=0.004) and intensity of spells (P=0.008) 0.016 for subjects under and over 2 years, respectively) had a statistically significant decrease after treatment with risperidone compared to pretreatment. Conclusion: According to the results of this study, it seems that both the frequency and the intensity of spells in children (regardless of gender and age group), experienced a statistically significant decrease after treatment with Risperidone. We suggest conducting a more comprehensive study considering a larger sample size in order to estimate this issue more correctly.

6.
Ital J Pediatr ; 49(1): 64, 2023 Jun 06.
Artigo em Inglês | MEDLINE | ID: mdl-37280710

RESUMO

BACKGROUND: Spinal muscular atrophy (SMA) could be classified as 5q and non-5q, based on the chromosomal location of causative genes. A rare form of non-5q SMA is an autosomal-recessive condition called spinal muscular atrophy with progressive myoclonic epilepsy (SMA-PME), phenotypically characterized by myoclonic and generalized seizures with progressive neurological deterioration. SMA-PME is a clinically heterogeneous disorder that arises from biallelic pathogenic variants in ASAH1 gene. METHODS: Following clinical and primary laboratory assessments, whole-exome sequencing was performed to detect the disease-causing variants in three cases of SMA-PME from different families. Also, Multiplex ligation-dependent probe amplification (MLPA) was employed for determining the copy numbers of SMN1 and SMN2 genes to rule out 5q SMA. RESULTS: Exome sequencing revealed two different homozygous missense mutations (c.109 C > A [p.Pro37Thr] or c.125 C > T [p.Thr42Met]) in exon 2 of the ASAH1 gene in the affected members of the families. Sanger sequencing of the other family members showed the expected heterozygous carriers. In addition, no clinically relevant variant was identified in patients by MLPA. CONCLUSION: This study describes two different ASAH1 mutations and the clinical picture of 3 SMA-PME patients. In addition, previously reported mutations have been reviewed. This study could help to fortify the database of this rare disease with more clinical and genomic data.


Assuntos
Atrofia Muscular Espinal , Epilepsias Mioclônicas Progressivas , Humanos , Mutação , Atrofia Muscular Espinal/diagnóstico , Atrofia Muscular Espinal/genética , Epilepsias Mioclônicas Progressivas/genética , Mutação de Sentido Incorreto
7.
Sci Rep ; 13(1): 3202, 2023 02 24.
Artigo em Inglês | MEDLINE | ID: mdl-36828874

RESUMO

Spinal muscular atrophy (SMA) is among the most common autosomal recessive disorders with different incidence rates in different ethnic groups. In the current study, we have determined SMN1, SMN2 and NAIP copy numbers in an Iranian population using MLPA assay. Cases were recruited from Genome-Nilou Laboratory, Tehran, Iran and Pars-Genome Laboratory, Karaj, Iran during 2012-2022. All enrolled cases had a homozygous deletion of exon 7 of SMN1. Moreover, except for 11 cases, all other cases had a homozygous deletion of exon 8 of SMN1. Out of 186 patients, 177 (95.16%) patients showed the same copy numbers of exons 7 and 8 of SMN2 gene. In addition, 53 patients (28.49%) showed 2 copies, 71 (38.17%) showed 3 copies and 53 patients (28.49%) showed 4 copies of SMN2 gene exons 7 and 8. The remaining 9 patients showed different copy numbers of exons 7 and 8 of SMN2 gene. The proportions of SMA patients with different numbers of normal NAIP were 0 copy in 73 patients (39.24%), 1 copy in 59 patients (31.72%), 2 copies in 53 patients (28.49%) and 4 copies in one patient (0.5%). These values are different from values reported in other populations. Integration of the data of the SMN1/2 and NAIP genes showed 17 genotypes. Patients with genotype 0-0-3-3-1 (0 copies of SMN1 (E7,8), 3 copies of SMN2 (E7,8) and 1 copy of NAIP (E5)) were the most common genotype in this study. Patients with 0-0-2-2-0 genotype were more likely to have type I SMA. The results of the current study have practical significance, particularly in the genetic counseling of at-risk families.


Assuntos
Variações do Número de Cópias de DNA , Atrofia Muscular Espinal , Humanos , Irã (Geográfico) , Homozigoto , Proteína Inibidora de Apoptose Neuronal/genética , Deleção de Sequência , Atrofia Muscular Espinal/genética , Proteína 1 de Sobrevivência do Neurônio Motor/genética
8.
Arch Iran Med ; 26(3): 166-171, 2023 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-37543939

RESUMO

BACKGROUND: COVID-19 infection and its neurological manifestations were seen in children although less common than adults. The aim of this study was to determine the frequency of different types of neurologic findings of hospitalized children with COVID-19. ]. METHODS: This retrospective study was performed on hospitalized pediatric patients aged≤18 years with confirmed SARS-CoV-2 at Children's Medical Center Hospital. Neurological manifestations were defined as the presence of any of the following symptoms: seizure, altered mental status, behavioral/personality change, ataxia, stroke, muscle weakness, smell and taste dysfunctions, and focal neurological disorders. RESULTS: Fifty-four children with COVID-19 were admitted and their mean age was 6.94±4.06 years. Thirty-four of them (63%) were male. The most frequent neurological manifestation was seizure (19 [45%]) followed by muscle weakness (11 [26%]), loss of consciousness (10 [23%]), and focal neurological disorders (10 [23%]). Other neurological manifestations consisted of headache (n=7), movement disorders (n=6), behavioral/personality change (n=5), ataxia (n=3), and stroke (n=3). Twenty-nine percent of our patients had leukocytosis. A neutrophil count above 70% was seen in 31% of participants. Among our patients, 81% had a positive reverse-transcription polymerase chain reaction (RT-PCR) test for SARS-CoV-2. CONCLUSION: During the current pandemic outbreak, hospitalized children with COVID-19 should be evaluated for neurological signs because it is common among them and should not be under-estimated.


Assuntos
COVID-19 , Acidente Vascular Cerebral , Adulto , Humanos , Masculino , Criança , Pré-Escolar , Feminino , COVID-19/epidemiologia , SARS-CoV-2 , Irã (Geográfico)/epidemiologia , Estudos Retrospectivos , Convulsões , Ataxia/etiologia , Hospitais
9.
J Neuromuscul Dis ; 10(2): 211-225, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36776076

RESUMO

BACKGROUND: Insufficient amounts of survival motor neuron protein is leading to one of the most disabling neuromuscular diseases, spinal muscular atrophy (SMA). Before the current study, the detailed characteristics of Iranian patients with SMA had not been determined. OBJECTIVE: To describe the key demographic, clinical, and genetic characteristics of patients with SMA registered in the Iranian Registry of SMA (IRSMA). METHODS: IRSMA has been established since 2018, and the demographic, clinical, and genetic characteristics of patients with SMA were recorded according to the methods of treat neuromuscular disease (TREAT-NMD) project. RESULTS: By October 1, 2022, 781 patients with 5q SMA were registered. Of them, 164 patients died, the majority of them had SMA type 1 and died during the first 20 months of life. The median survival of patients with type 1 SMA was 23 months. The consanguinity rate in 617 alive patients was 52.4%, while merely 24.8% of them had a positive family history. The most common type of SMA in live patients was type 3. Morbidities were defined as having scoliosis (44.1%), wheelchair dependency (36.8%), tube feeding (8.1%), and requiring mechanical ventilation (9.9%). Most of the registered patients had a homozygous deletion of SMN1, while the frequency of patients with higher copy numbers of SMN2, was less in more severe types of the disease. Earlier onset of the disease was significantly seen in patients with lower copy numbers of SMN2. The neuronal apoptosis inhibitory protein (NAIP) gene deletion was associated with a higher incidence of more severe types of SMA, higher dependency on ventilators, tube feeding, and earlier onset of the disease. CONCLUSIONS: The IRSMA is the first established Iranian nationwide registry of patients with SMA. Using this registry, decision-makers, researchers, and practitioners can precisely understand the epidemiology, characteristics, and genetics of patients with SMA in Iran.


Assuntos
Atrofia Muscular Espinal , Atrofias Musculares Espinais da Infância , Humanos , Irã (Geográfico) , Homozigoto , Deleção de Sequência , Atrofia Muscular Espinal/genética , Atrofias Musculares Espinais da Infância/genética , Sistema de Registros
10.
Daru ; 20(1): 17, 2012 Aug 30.
Artigo em Inglês | MEDLINE | ID: mdl-23351726

RESUMO

BACKGROUND AND PURPOSE OF THE STUDY: Intractable seizures are a subgroup of epileptic disorders challenging the physicians' skills to become controlled. Showing resistance towards common pharmacotherapy, they demand newer antiepileptic drugs acquired at higher costs. 0.06% of children around the world are estimated to suffer from epilepsy and its consequences. The aim of the present study has been to evaluate the cost-effectiveness of these drugs in the treatment of intractable seizures in children. METHODS: Clinical and cost data were collected from medical and cost records preserved at a neurologist office and a referral pharmacy respectively. Based on the new AED which are accessible in Iran, regimens were categorized into eight groups. The first group consisting of conventional AEDs was considered as comparator and the effectiveness of other groups was compared with it. Incremental Cost-effectiveness Ratio (ICER) of adding-on each new antiepileptic drug was calculated in terms of Rials per consequence (Rls/consq) and compared with each other. Furthermore ICER of the regimens was compared with the GDP per capita (Gross Domestic Product) of the year (2010). RESULTS: the ICER of the adding-on regimens range from negative values for Gabapentin, Levetiracetam and Zonisamide to low values for Lamotrigine (~ 6.4 million Rials/consequence [mil Rls/consq]) and Oxcarbazepine (~7.7 mil Rls/consq) and followed by high values for Topiramate (~21 mil Rls/consq) and Vigabatrin (~43.7 mil Rls/consq) considering the three months of remaining on regimen. By increasing the limit of remaining time to six months, the previously mentioned regimens persist on negative values. However Oxcarbazepine (~28.7 mil Rls/consq) and Lamotrigine (~13.8 mil Rls/consq) show a steep increase. Topiramate (~23.6 mil Rls/consq) displays a less change. Opposite to other regimens, the ICER value of Vigabatrin (~17.26 mil Rls/consq) has shown an important increase. MAJOR CONCLUSIONS: Adding-on new antiepileptics to conventional regimens are cost-effective and justified considering the GDP per capita.

11.
Int J Hematol Oncol Stem Cell Res ; 16(1): 55-65, 2022 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-35975120

RESUMO

Background: Allogeneic stem cell transplantation (allo-SCT) is the highest potential treatment for long-term survival as post-remission therapy for acute myeloid leukemia (AML). The aim of this study was to estimate the overall survival (OS) of patients with AML after allo-SCT and to identify the factors affecting them as a prognostic factor for the survival of patients. Material and Methods: In this retrospective cohort study, data of patients with AML who underwent allo-SCT at Taleghani bone marrow transplantation and cell therapy center in Tehran, Iran, from May 2009 to September 2016 were used. A total of 101 patients were enrolled and death time was considered as a failure event for them. Kaplan-Meier method, log-Rank tests, and Cox proportional hazard model were used to evaluate OS and to identify the risk factors of patient's survival. The SPSS software version 21 was used for the analysis of data and P<0.05 was considered as a significant level. Results: Of 101 patients with AML, 49 (48.5%) were males. The median age at allo-SCT was 32.76 years and 42 patients (41.6%) died. The 5-year OS and disease-free survival (DFS) was 56% (95%CI: 51-61%) and 52% (95%CI: 57-47%), respectively. Multivariate analysis by Cox regression indicated that OS has a significant relationship with primary WBC count and relapse (P=0.001). Conclusion: Our results showed that allo-SCT has nearly the same outcome in developing countries and the WBC count and relapse are effective factors on the chance of survival in AML patients after allo-SCT.

12.
Clin Case Rep ; 10(12): e6772, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36545550

RESUMO

We reported an association between SARS-CoV-2 infection and Guillain-Barre syndrome (GBS). From 37 patients with GBS, previous SARS-CoV-2 clinical clues, including fever, cough, and diarrhea, were recorded in 18 patients. Among them, SARS-CoV-2 IgG was detected in seven patients, considered confirmed as cases. SARS-CoV-2 PCR was positive in just one patient. Although we found no increase in patient recruitment during the pandemic compared to previous years, our study indicated that SARS-CoV-2 is associated with poorer outcomes regarding GBS disability scale and hospital stay.

13.
Echocardiography ; 28(10): 1088-94, 2011 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-21967284

RESUMO

BACKGROUND: Progressive movement limitation in patients with Duchenne's muscular dystrophy (DMD) may mask the onset of cardiac involvement. We aimed to determine whether myocardial performance index (MPI), either by conventional Doppler (CD) or tissue Doppler imaging (TDI), could detect subclinical myocardial dysfunction in DMD patients. Furthermore, we assessed the atrial ejection force (AEF) to evaluate possible existence of latent diastolic dysfunction. METHOD: Twenty DMD patients without signs and symptoms of cardiac impairment and 20 age matched control group enrolled into the study. MPI for right ventricle and left ventricle (LV) was assessed with CD and TDI for comparison. RESULTS: No significant difference was detected in ejection fraction, fractional shortening, and AEF between two groups. CD derived MPI was higher for both ventricles in the patients (P < 0.0001). Moreover, the TDI derived MPI were significantly higher in the patients in mitral, tricuspid, and septal views (P < 0.0001). A significant decrease of mitral myocardial systolic wave velocity was detected in the patients, in favor of early involvement of the posterobasal LV myocardium. All acceleration and deceleration times' values for the late mitral inflow were higher whereas the rates were significantly lower in the patients. There was no significant difference between AEF of both groups. CONCLUSION: MPI might be a useful parameter for early detection of occult cardiac dysfunction in DMD patients when other simple and standard echocardiographic parameters are within the normal limits. Lack of atrial contribution in LV filling due to atrial contractile dysfunction may play a role in DMD cardiac dysfunction.


Assuntos
Ecocardiografia/métodos , Átrios do Coração/diagnóstico por imagem , Insuficiência Cardíaca/diagnóstico por imagem , Distrofia Muscular de Duchenne/diagnóstico por imagem , Volume Sistólico , Disfunção Ventricular Esquerda/complicações , Disfunção Ventricular Esquerda/diagnóstico por imagem , Criança , Pré-Escolar , Estudos de Viabilidade , Feminino , Insuficiência Cardíaca/complicações , Testes de Função Cardíaca/métodos , Humanos , Masculino , Distrofia Muscular de Duchenne/complicações , Reprodutibilidade dos Testes , Sensibilidade e Especificidade
14.
Iran J Child Neurol ; 15(4): 35-41, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34782840

RESUMO

OBJECTIVES: Guillain-Barré syndrome (GBS) is an immune-mediated disease of the peripheral nervous system affecting all age groups around the world. Although the pathogenesis and optimal treatment of GBS have not yet been completely identified, one of the most common infectious diseases to trigger the syndrome is cytomegalovirus (CMV) infection. The GBS following CMV infection is rarely reported in childhood, and there have been no data on GBS with antecedent CMV infection in children in Iran. The current study aimed to evaluate the association between CMV infection and GBS in children in Iran. MATERIALS & METHODS: The case-control study design was used for 30 GBS cases and 30 matched controls. All the serum samples were tested for the presence of anti-CMV immunoglobulin M (IgM) and immunoglobulin G (IgG) antibodies using a commercially available enzyme-linked immunosorbent assay (EUROIMMUN Medizinische, Germany). The CMV viral deoxyribonucleic acid (DNA) in the specimen was detected using polymerase chain reaction (PCR) (Cytomegalovirus PCR Detection Kit, CinnaGen Co., Iran). RESULTS: Anti-CMV IgG antibodies were detected in 97% of the GBS patients and 93% of the healthy controls. Anti-CMV IgM antibodies were demonstrated in 33% of the healthy controls (n=10) and 33% of the GBS children (n=10). The borderline level of anti-CMV IgM antibodies was observed in 23% of the healthy controls (n=7) and 13% of the GBS children (n=4) (P=0.57). None of the specimens from both controls and GBS cases was positive for CMV DNA using PCR. CONCLUSION: The obtained data demonstrated the presence of anti-CMV antibodies in the majority of both GBS patients and controls. Moreover, no relation was observed between CMV infection and GBS. However, it is highly recommended to perform further studies with a large sample size.

15.
Iran J Child Neurol ; 14(4): 87-94, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33193787

RESUMO

Congenital myasthenic syndrome (CMS) refers to a heterogeneous group of inherited disorders, characterized by defective transmissionat the neuromuscular junction (NMJ). Patients with CMS showed similar muscle weakness, while other clinical manifestations are mostly dependent on genetic factors. This disease,caused bydifferent DNA mutations, is genetically inherited. It is also associated with mutations of genes at NMJ, involving the acetylcholine receptor (AChR) subunits. Here, we present the case ofa five-year-old Iranian boywith CMS, undergoingtargeted sequencing of a panel of genes, associated with arthrogryposis and CMS. The patient had six affected relatives in his genetic pedigreechart. The investigations indicated a homozygous single base pair deletion at exon 12 of the CHRNE gene (chr17:4802186delC).This region was conserved across mammalian evolution and was not submitted to the 1000 Genomes Project database.Overall, the CHRNEvariant may beclassified as a significant variant in the etiology of CMS.It can besuggested thatthe Iranian CMS population carry regional pathogenic mutations, which can be detected viatargeted and whole genome sequencing.

16.
J Mol Neurosci ; 70(10): 1565-1573, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32436198

RESUMO

Mutations in the dystrophin gene could cause Duchenne muscular dystrophy (DMD), which is the most common muscular disorder in pediatrics. Considering the growing evidence on appropriateness of gene therapies for DMD, precise genetic diagnosis seems essential. Hence, we conducted a study to determine mutational patterns in Iranian children with DMD. To detect all probable large mutations in the dystrophin gene, 314 DMD patients were evaluated using the multiplex ligation-dependent probe amplification (MLPA). Subjects who were MLPA-negative underwent the next generation sequencing (NGS) to identify potential point mutations. MLPA detected deletions (79.93%) and duplications (5.41%) along the dystrophin gene of 268 patients. Distribution of large mutations was heterogeneous and followed hotspot pattern throughout the gene. From 46 patients who were MLPA-negative, 43 exhibited point mutations including nonsense in 7.64%, frameshifts in 4.77%, splicing in 0.96%, and missense variations in 0.32% of participants. Most of the point mutations were located between exons 19 and 40. In three patients (1%), no mutation was found using either MLPA or NGS. Two subjects had novel nonsense mutations (L1675X and E1199X) in their dystrophin gene, which were considered as the possible reason for elimination of major domains of the gene. The results of this study provided invaluable information regarding the distribution of various large and small mutations in Iranian individuals with DMD. Besides, the novel nonsense mutations L1675X and E1199X were identified within the highly conserved residues, leading to elimination of significant domains of the dystrophin gene.


Assuntos
Frequência do Gene , Distrofia Muscular de Duchenne/genética , Adolescente , Criança , Códon sem Sentido , Distrofina/genética , Deleção de Genes , Duplicação Gênica , Humanos , Irã (Geográfico) , Masculino , Mutação Puntual , Adulto Jovem
17.
Neurodegener Dis Manag ; 9(3): 123-133, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-31166138

RESUMO

Aim: Duchenne muscular dystrophy (DMD) is a severe and rare X-linked neuromuscular childhood disorder that results in functional decline, loss of ambulation and early death due to cardiac or respiratory failure. The objective of this paper is to address different aspects of the current management of DMD in the Middle East, north Africa (MENA) region, and to gather experts' recommendations on how to optimally diagnose and treat patients suffering from this disease. Methods: A group of experts (neuromuscular medicine, neuropediatricians and geneticists) convened to discuss the diagnosis and management of DMD in the MENA region. A list of practical statements was prepared by the chair of the meeting to guide the discussions around critical aspects relating to the current and future management of DMD. Results & conclusion: Ideally, DMD management should be a multidisciplinary approach. Nevertheless, few tertiary care hospitals in the region are currently able to provide the full spectrum of medical expertise and services needed by DMD patients. Clinical practice in the region remains heterogeneous. Specific guidelines for diagnosis and treatment are needed in the MENA region to improve outcomes. Disease awareness among the general public and the medical community is lacking. Now that mutation-specific therapies are being developed and more widely studied, general education programs regarding early signs and symptoms, a standardized referral and diagnosis pathway, patient registries and support groups will significantly improve the management of the disease.


Assuntos
Distrofia Muscular de Duchenne/diagnóstico , Distrofia Muscular de Duchenne/terapia , Humanos , Oriente Médio
18.
Pediatr Hematol Oncol ; 25(1): 49-54, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18231954

RESUMO

To determine the zinc status in patients with major beta-thalassemia and its effect on their growth, the authors studied 64 thalassemic patients in comparison with 64 healthy matched individuals. Demographic and anthropometric data and history of the therapies were collected. Serum zinc level in both groups and ferritin in the thalassemic group were assigned. Interestingly, mean serum zinc level was significantly higher in the thalassemic group. No significant correlation between serum zinc level and short stature, serum ferritin level, desferrioxamine dose, initiating time of blood transfusion, and chelation therapy was found. The study indicates zinc deficiency in thalassemic patients who are on regular blood transfusion is rare and it seems that routine zinc supplementation is not necessary.


Assuntos
Zinco/sangue , Talassemia beta/metabolismo , Adolescente , Adulto , Estatura , Peso Corporal , Estudos de Casos e Controles , Criança , Feminino , Crescimento , Transtornos do Crescimento/etiologia , Humanos , Masculino , Estado Nutricional , Zinco/deficiência , Talassemia beta/complicações
19.
Neurol Res Int ; 2018: 2548142, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30002929

RESUMO

OBJECTIVE: Systemic lupus erythematosus (SLE) is a complex autoimmune disorder characterized by multisystem involvement, including the nervous system. In the present study, we aimed to assess neuropsychiatric manifestations in juvenile-onset systemic lupus erythematosus (JSLE) in Iran. METHODS: One hundred and forty-six pediatric onset patients with SLE who had registered in our pediatric rheumatology database were evaluated prospectively and cross sectionally within 2013-2015. Data including sex, age, age at the time of diagnosis, age at the time of study, physical examination, laboratory review, and neuropsychiatric inventory were extracted from this database. Classification of neuropsychiatric JSLE was according to the 1999 American College of Rheumatology (ACR) neuropsychiatric manifestations of SLE case definitions. RESULT: A total number of 41 patients with neuropsychiatric symptoms were selected. The patients' average age was 12.2 years. The most common neuropsychiatric symptoms were seizures, migraine, and depression. The mean age at the onset of symptoms was 10.2 ± 3 years. Mean follow-up period was 57±34 (range: 12-120) months. From 41 SLE patients, 18 (43.9) presented symptoms at the time of diagnosis. In thirteen (31.7%) patients, neurological symptoms were developed more than 1 year after SLE diagnosis. Headache was the most common feature (13%), followed by seizure (9.5%) and chorea (3.4%). Other neurological manifestations included cranial nerve involvement (0.7%), loss of consciousness (2.7%), and impaired deep tendon reflex neuropathy (2.5%). The least common neuropsychiatric JSLE manifestation was aseptic meningitis seen in only one patient (0.7%). CONCLUSION: The presence of headache, mood disorders, psychosis, depression, and other neuropsychological manifestations in a patient with JSLE should prompt investigations into diagnosis of the primary nervous system involvement in order to reduce mortality and morbidity.

20.
Pediatr Hematol Oncol ; 24(7): 525-9, 2007.
Artigo em Inglês | MEDLINE | ID: mdl-17786788

RESUMO

A 10-year-old boy presented with partial albinism and typical clinical features of a macrophage activation syndrome (hepatosplenomegaly, fever, and pancytopenia), suggesting the diagnosis of Griscelli syndrome. The diagnosis was confirmed by light microscopic evaluation of hair that showed characteristic large aggregates of pigment granules irregularly distributed along the hair shaft. Immunosuppressive therapy controlled his macrophage activation syndrome successfully. Since early diagnosis is life saving and simple methods confirm the diagnosis, finding of partial albinism in children should alert clinicians to consider Griscelli syndrome.


Assuntos
Corticosteroides/uso terapêutico , Linfo-Histiocitose Hemofagocítica/diagnóstico , Piebaldismo/diagnóstico , Anfotericina B/uso terapêutico , Transfusão de Sangue , Criança , Fator Estimulador de Colônias de Granulócitos/uso terapêutico , Hepatomegalia/diagnóstico , Hepatomegalia/tratamento farmacológico , Humanos , Imunoglobulinas Intravenosas/uso terapêutico , Linfo-Histiocitose Hemofagocítica/tratamento farmacológico , Linfo-Histiocitose Hemofagocítica/genética , Masculino , Pancitopenia/diagnóstico , Pancitopenia/tratamento farmacológico , Piebaldismo/tratamento farmacológico , Esplenomegalia/diagnóstico , Esplenomegalia/tratamento farmacológico , Síndrome
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