|
|
|
|
|
 |
Search published articles |
 |
|
Showing 2 results for Genetics
Jalil Rashedi, Mohammad Asgharzadeh, Seyed Reza Moaddab, Mojtaba Amani, Mohammad Mazani,
Volume 13, Issue 4 (1-2013)
Abstract
Background & Objectives: It is estimated that one third of the world’s population is infected by M. tuberculosis. Because of differences in immune system activity against the invasive microorganisms, the disease is developed only among 10% of them. Vitamin D metabolism and its receptor activity are important factors in human native immune system against tuberculosis. In the present study we investigated ApaI polymorphism of vitamin D receptor (VDR) gene and association with susceptibility to tuberculosis. Method: This study was performed on 84 cases with tuberclosis (male =50, female =34) and 90 controls (male =49, female = 41). DNA was extracted from cases and controls leucocytes and elected sequences amplified in polymerase chain reaction (PCR) procedure by using specific primers. ApaI polymorphism of VDR gene evaluated by RFLP technique on PCR products. Finally statistical analysis performed using Chi- square to compare genotype frequencies between cases and controls. Results: In case and control groups, AA genotype frequency were 34.5% and 33.3% respectively (OR=0.905, 95% CI 0.469-1.747, p = 0.766) and a genotype frequency in patients and control group were 15.47% and 13.3% respectively (OR=0.808, 95% CI 0.333 –1.961, p=0.637). Conclusion: In the present study we could not find any significant relationship between genotype frequency of ApaI (A/a) polymorphism in VDR gene and susceptibility to tuberculosis.
Kamaloddin Hamidi Nokhostin,
Volume 24, Issue 1 (4-2024)
Abstract
Enzymes have been used experimentally in the preparation of fermented, food, and medicinal products since mankind started a regular life in the form of early civilizations, without any information about their nature being available. It has been more than a century since scientists have obtained information about the enzymatic reactions and the enzyme structure, and a newer and more practical attitude towards them is obtained day by day. Today, these proteins play roles as biomarkers in the diagnosis, monitoring and treatment of diseases. Enzymes roles as receptor for some hormones and their qualitative and quantitative changes interfering in the onset of some diseases such as diabetes have been known. In addition, they are used as accurate and specific tools in the assay of some biochemical analytes, phenotypic identification of bacteria and biosensor design. The basis of the mechanism of some drugs is enzyme inhibition. Meanwhile, some enzymes are directly used as drugs. The enzymes are applied in some immunoassay techniques, genetics and proteomics laboratory methods. In modern biotechnology, enzymes are used to produce plenty of products. This review article aimed to take a new, updated and comprehensive approach to several roles that enzymes play in various fields from diagnosis, monitoring and treatment of diseases to their application in medical, genetics and proteomics laboratory methods.
|
|
|
|
|
|
|
|
|
.png)
.png)
