Mohammad Reza Batavani, Sayyed Mohammad Marandi, Kamran Ghaedi, Fahime Esfarjani, Volume 5, Issue 4 (9-2018)
Abstract
Introduction: Genetic variation between individuals may include single nucleotide polymorphisms. These individual differences could change human phenotypes (such as skeletal structure, heart and lung size). Insulin-like growth factor-I (IGF-I) is a critical factor in growth and exercise-associated muscle development. In this study we analyzed the frequency of IGF-I rs35767 polymorphism in karate-Kas athletes to find whether there is a difference among professional, amateur athletes and non- Karate-Kas. Materials and methods: Two hundred and fifty-four athletes (95 professional Karate-Kas, and 159 amateur Karate-Kas) and 159 non-athletic healthy individuals participated in the current study. Following provision of informed consent, 2 mL of blood samples were taken. After DNA isolation, the genotyping frequencies of the IGF-I gene C/T polymorphism was assessed by restriction fragment length polymorphism (RFLP) analysis. Statistical analyses carried out using SPSS software (version 20) and data with P<0.05 were considered to be significant. Results: Frequency of T/T and C/T genotypes in comparison to C/C genotype was increased in professional Karate-Kas and amateur Karate-Kas versus to control volunteer (odd ratio > 1) however, was not significant. Odd ratios of T/T and T/C genotypes compared to C/C in professional group versus controls were 1.125 (95%CI: 0.556 - 2.275) and 1.034 (0.538 - 1.984), respectively. Also, odd ratio of T/T and T/C in amateur group versus controls were 1.002 (0.535 - 1.876) and 1.256 (0.715 - 2.205), respectively. Conclusion: The IGF-I gene C/T polymorphism is not significantly associated with the physical performance´s levels of karate-kas athletes in Iranian population.
Mohammad Reza Batavani, Sayyed Mohammad Marandi, Kamran Ghaedi, Mojtaba Babaei Khorzoghi, Neda Boroushak, Volume 10, Issue 1 (1-2023)
Abstract
Introduction: One of the major energy systems for power performance in muscles is glycolysis that is regulated by the levels of Hypoxia-inducible factor-1α (HIF1), which acts as a transcription factor in response to hypoxia. The purpose of this study was to compare the HIF1 gene polymorphism (rs11549465) between elite and amateur power karate-kas versus non-athletes. Materials and Methods: In this survey, the C/T polymorphism allelic and genotypic distribution of the “HIF1 rs11549465” gene was detected in 550 healthy Iranian persons who were divided into three groups: elite karate-kas (86 males and 86 females) and amateur karate-kas (100 males and 72 females) versus 206 non-athletes (100 males and 106 females). 5 cc blood was taken for DNA extraction and the HIF1 gene T/C polymorphism was determined by PCR from the extracted DNA. Also, RFLP analyses was exerted by electrophoresis separation. Statistical analyses included Chi-Square and multinomial regression tests and data with P < 0.05 were considered to be a significant amount. Results: The distribution of HIF1 C/T genotype in the groups was significantly different in all of subjects (TC: 25.6%; TT: 11.4% and CC: 63%) (χ2 = 99.889, P = 0.0001), but it was not different between the groups significantly (P > 0.05). Furthermore, multiple regression analysis demonstrated that the genotype of HIF1 was not related to the karate-ka's athletic status. Conclusion: In Iranian population, the HIF1 gene C/T polymorphism is not related to the karate-ka athletic status.
