Background: Biotinidase (BTD, encoded by the BTD gene) deficiency is an autosomal recessive neurometabolic disease caused by abnormal BTD activity in the biotin cycle. The clinical symptoms of patients, which are mainly neurocutaneous, range from mild to severe based on the enzyme activity level. This study aimed to identify BTD gene mutations in suspected BTD deficiency patients for the first time in the southwest of Iran and evaluate their genotype-phenotype correlations.
View Article and Find Full Text PDFThe World Health Organization has considered the infertility as an international public health problem. Infertility affect nearly 1 in 7 couples and male component contributes to 50% of infertility cases. There is a clear link between male infertility and some cancers such as testicular germ cell, prostate and colon cancers.
View Article and Find Full Text PDFBackground: Cytogenetics and association studies showed that folate gene polymorphisms can increase the risk of chromosomal nondisjunction and aneuploidies. The folate-metabolizing gene polymorphisms in Down syndrome mothers (DSM) have been assessed in a variety of populations. Reduced folate carrier 1 () and cystathionine beta-synthase () are key enzymes in folate metabolism.
View Article and Find Full Text PDFObjective: The embryo implantation includes a complex sequence of signaling events, comprising numerous molecular mediators, such as ovarian hormones, cytokines, adhesion molecules and, growth factors. One of the critical factors in angiogenesis is the vascular endothelial growth factor (VEGF). The VEGF plays a pivotal role in embryonic development, decidua vascularization and placental angiogenesis.
View Article and Find Full Text PDFBackground: is a key player in inflammatory reactions, carcinogenesis, and tumor development. In this study, polymorphism of and its gene and suppressor of cytokine signaling-1 (SOCS-1) expression were investigated in relation to cancer susceptibility and development in breast cancer (BC) patients.
Materials And Methods: Polymorphism of was evaluated between a population of 174 patients with BC and 129 controls using restriction fragment length polymorphism and the expression of and SOCS-1 were examined in peripheral blood mononuclear cells (PBMCs) by real-time polymerase chain reaction.
Objective: Similar to other types of cancer, the development of breast cancer is a multi-stage process, consisting of various mutations and epigenetic changes in many genes. Mutations in the BRCA1 gene, which is a tumor suppressor gene, are considered as the most important types of mutations. The pivotal role of epigenetics is currently considered as the primary key to carcinogenesis.
View Article and Find Full Text PDFBackground: The objective of this study was to design and construct a CO2 incubator with nonmetallic walls and to investigate the viability of the cells and microwave irradiance inside this incubator.
Methods: Because the walls of conventional incubators are made of metal, this causes scattering, reflection, and absorption of electromagnetic waves. We decided to build a nonmetallic wall incubator to examine cells under microwave radiation.
Background And Aims: Sulfonylureas are the most secondary prescribed oral anti-diabetic drug. Understanding its genetic role in pharmacodynamics can elucidate a considerable knowledge about personalized treatment in type 2 diabetes patients. This study aimed to assess the impact of variants on sulfonylureas response among type 2 diabetes Iranian patients.
View Article and Find Full Text PDFMicroRNA-155 (miR-155) has a critical role in pro-inflammatory activation and tumor progression. In addition, miR-155 has various oncogenic effects in the tumor microenvironment by targeting the suppressor gene of cytokine signaling-1(SOCS-1) and interleukin-6 (IL-6). This study investigated the association of inflammatory changes with the variations of miR-155 expression in newly diagnosed breast cancer (NDBC) patients.
View Article and Find Full Text PDFObjectives: is one of the most prevalent human infectious agents that is directly involved in various upper digestive tract diseases. Although antibiotics-based therapy and proton pump inhibitors eradicate the bacteria mostly, their effectiveness has been declined recently due to emergence of antibiotic-resistant strains. Development of a DNA vaccine is a promising approach against bacterial pathogens.
View Article and Find Full Text PDFBackground: Biofilm is an accumulation of cells, which are formed on mucosal surfaces of the host as well as on medical devices. The inherent resistance of strains producing biofilms to antimicrobial agents is an important and key feature for biofilm growth, which can lead to treatment failure. This resistance is due to the regulatory increase of the output pumps, the presence of extracellular matrix, and the existence of persister cells.
View Article and Find Full Text PDFBackground: Hepatocellular carcinoma (HCC) is the most common type of liver cancer that occurs predominantly in patients with previous liver conditions. In the absence of an ideal screening modality, HCC is usually diagnosed at an advanced stage. Recent studies show that loss or gain of genomic materials can activate the oncogenes or inactivate the tumor suppressor genes to predispose cells toward carcinogenesis.
View Article and Find Full Text PDFMutations or altered expression of PRM1 gene have been associated with male infertility. This study aimed to analyse pathogenic variations of PRM1 gene in Iranian Arab infertile men with oligoasthenoteratozoospermia that was carried out for the first time in this population. Genomic DNA was used to perform PCR sequencing in PRM1 untranslated regions, exons and intron.
View Article and Find Full Text PDFLong noncoding RNAs (lncRNAs) are lengthy noncoding transcripts which are actively involved in crucial cellular pathways. Tissue-specific expression of lncRNAs besides its secretion into the body fluids, has made lncRNAs in attention as biomarkers of the diseases. According to the role of lncRNAs, especially in cardiac regeneration, it is not surprising if their altered expression levels lead to cardiac diseases.
View Article and Find Full Text PDFObjectives: Oropharyngeal candidiasis is one of the most common opportunistic fungal infections among human immunodeficiency virus (HIV)-infected individuals. The most common cause is Candida albicans, followed by non-albicans Candida. This study aimed to identify colonized Candida species in HIV-infected patients from Ahvaz, Iran.
View Article and Find Full Text PDFColorectal cancer (CRC) is one of the most common types of cancer worldwide. However, the molecular mechanisms involved in CRC initiation and progression is remained to be unknown. It seems that lncRNAs, as the main and lengthy functional transcripts of the genome, have important roles in different cancers such as CRC.
View Article and Find Full Text PDFIntellectual disability (ID) is characterized by significant deficits in adaptive behaviors and cognitive functioning. The involvement of both genetic and environmental factors in pathogenesis of the ID, makes the diagnosis of the disease more complicated. Nowadays, the entrance of next generation sequencing (NGS) approaches has facilitated the discovery of causative genes in this genetically heterogeneous disease.
View Article and Find Full Text PDFObjectives: is one the most dangerous opportunistic pathogens in hospitalized infections. This bacterium is resistant to 90% of commercial antibiotics. Therefore, developing new strategies to cure -infections is urgent.
View Article and Find Full Text PDFObjectives: Charcot-Marie Tooth disease (CMT) is one of the main inherited causes of motor and sensory neuropathies with variable expressivity and age-of onset. Although more than 70 genes have been identified for CMT, more studies are needed to discover other genes involved in CMT. Introduction of whole exome sequencing (WES) to capture all the exons may help to find these genes.
View Article and Find Full Text PDFBackground: Short-stature (SS) is multifactorial pathologic condition that originates from either genetic or environmental factors. The diagnosis is based on family history, clinical findings, radiological examination and genetic analysis. A variety of genes have been reported for SS, among which FGFR-3 was the main gene in achondroplasia and hypochondroplasia.
View Article and Find Full Text PDFBiochim Biophys Acta Rev Cancer
August 2019
Hepatocellular carcinoma (HCC), the most common form of liver cancer, represents a health problem in hepatic viruses-eradicating era because obesity, type 2 diabetes, and nonalcoholic steatohepatitis (NASH) are considered emerging pathogenic factors. Metabolic disorders underpin mitotic errors that lead to numerical and structural chromosome aberrations in a significant proportion of cell divisions. Here, we review that genomically unstable HCCs show evidence for a paradoxically DNA damage response (DDR) which leads to ongoing chromosome segregation errors.
View Article and Find Full Text PDFAutosomal recessive cerebellar ataxia is heterogeneous inherited neurodegenerative disorders with more than 70 involved genes. The development of next generation sequencing opens a new window in rapid diagnosis of such heterogeneous condition in medical genetics laboratories. Here, we present ADCK3; del.
View Article and Find Full Text PDFBackground: Breast cancer is the most common cancer diagnosed in women worldwide. So it seems that there's a good chance of recovery if it's detected in its early stages even before the appearances of symptoms. Recent studies have shown that miRNAs play an important role during cancer progression.
View Article and Find Full Text PDFObjective And Background: Histological and molecular information and biopsy help in the diagnosis of the type and grade of tumors and increase the value of estimation of the biological behavior of tumors. In this study, we focused on a consanguineous Iranian Family with high prevalence of brain tumors in their pedigree and reviewed the literature on MSH6 mutations in brain tumors and the treatment responses focused on Gliomas.
Method: We chose a family with a high prevalence of brain tumor in their pedigree.
Williams-Beuren syndrome (WBS) is a chromosomal microdeletion syndrome with variable phenotypic features such as supravalvular aortic stenosis (SVAS), facial appearance characteristics, growth retardation, and infantile hypercalcemia. This study aimed to detect the 7q11.23 microdeletion in 10 patients with early clinical diagnosis of WBS using fluorescent in situ hybridization or array comparative genomic hybridization.
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