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    Leptin and leptin receptor gene polymorphisms in obese and healthy children
    (CUKUROVA UNIV, 2022) Yarım, Ayça Kanat; Rasulova, Khayala; Çatlı, Gönül; Küme, Tuncay; Abacı, Ayhan; Kızıldağ, Sefa
    Purpose: The of this study is to explore the differences between leptin (LEPG2548A), which is considered efficacious in respect of adiposity and leptin receptor gene variants (LEPRQ223R, K109R, K656N). Furthermore, the relationship between these differences and the serum leptin level shall be scrutinized. Materials and Methods: A total of 300 volunteers (12-17 years of age) joined our study (150controls-150obese). Blood samples obtained from these individuals were used for DNA isolation. An examination was carried out in order to show polymorphisms of the leptin receptor gene increased by RealTime PCR previously. The variations of the leptin gene were ascertained by implementation of restriction fragment length polymorphism method. Results: Genotype dispersion calculations led to the understanding that the AA-genotype was lower in the K109R polymorphism control group than in the patient group, whereas AG-genotype was higher. The control group of Q223R polymorphism had higher AA-genotype values than the patient group, whereas it showed lower AG-genotype values. Moreover, anthropometric and metabolic results were found to be significantly higher (p in the patient group than in the control group. Conclusion: The patient group of LEPRQ223R polymorphism showed lower AA-genotype values, a higher AG-genotype dispersion and a higher allele-G value. Therefore, a relationship to adiposity has been assumed.