مقایسه‌ی بیان ژن‌های‌ Foxa1 و Foxa2 در مخاط معده‌ی مردان و زنان

نوع مقاله : مقاله های پژوهشی

نویسندگان

1 دانشجوی کارشناسی ارشد، دانشکده‌ی علوم پایه، دانشگاه آزاد اسلامی، واحد شهرکرد، شهرکرد، ایران

2 استادیار، گروه زیست‌شناسی، دانشکده‌ی علوم پایه، دانشگاه آزاد اسلامی، واحد شهرکرد، شهرکرد، ایران

3 استادیار، گروه ژنتیک، دانشکده‌ی پزشکی، دانشگاه آزاد اسلامی، واحد کازرون، کازرون، ایران

چکیده

مقدمه: در سال‌های اخیر مشخص شده است که تعداد زیادی از ژن‌ها در دو جنس بیان متفاوتی دارند که به آن دو شکلی جنسیتی در بیان ژن می‌گویند. یکی از دلایل اصلی تفاوت بیان ژن‌ها در دو جنس، به هورمون‌های جنسی نسبت داده می‌شود. با توجه به وجود عنصر پاسخ دهنده به استروژن و آندروژن در ناحیه‌ی تنظیمی ژن‌های Foxa1 و Foxa2 و دو شکلی جنسیتی در بروز سرطان معده، در این مطالعه بیان این دو ژن در معده‌ی زنان و مردان سالم مقایسه شد.روش‌ها: نمونه‌گیری از 20 مرد و 21 زن سالم با استفاده از آندوسکوپی از ناحیه‌ی آنتروم معده انجام شد. پس از استخراج RNA و سنتز cDNA (Complementary DNA)، با تکنیک نیمه‌کمی RT-PCR (Reverse transcription polymerase chain reaction) بیان ژن‌های Foxa1 و Foxa2 در مردان و زنان مقایسه شد. از آزمون‌های آماری Independent sample t و ANOVA برای تحلیل داده‌ها استفاده گردید.یافته‌ها: بیان ژنFoxa1 در زنان به طور معنی‌داری بیشتر از مردان بود (041/0 = P، 36 = df، 12/2 = t). همچنین، بیان این ژن در افراد زیر 45 سال به طور قابل توجهی بیشتر از افراد بالای 45 سال بود (010/0 = P، 36 = df، 71/2 = t)؛ اما در مورد ژن Foxa2 نتایج معنی‌داری مشاهده نشد.نتیجه‌گیری: بیان ژن Foxa1 در معده‌ی زنان بیشتر از مردان می‌باشد. همچنین، بیان این ژن در معده‌ی افراد مورد مطالعه، با افزایش سن به طور قابل توجهی کاهش می‌یابد.

کلیدواژه‌ها


عنوان مقاله [English]

Comparing the Expression of Foxa1 and Foxa2 Genes in the Stomach in Men and Women

نویسندگان [English]

  • Zahra Mohammadi 1
  • Parisa Mohamadynejad 2
  • Mehdi Moghanibashi 3
1 MSc Student, Department of Genetics, School of Basic Sciences, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
2 Assistant Professor, Department of Biology, School of Basic Sciences, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
3 Assistant Professor, Department of Genetics, School of Medicine, Kazerun Branch, Islamic Azad University, Kazerun, Iran
چکیده [English]

Background: In recent years, it is found that a large number of genes are differentially expressed in two sexes; this can be referred to sexual dimorphism in gene expression. One of the main reasons for the differences in gene expression between male and female is assigned to sex hormones. Regarding to the presence of estrogen and androgen response elements in the regulatory region of Foxa1 and Foxa2 genes and sexual dimorphism in the incidence of gastric cancer, in this study, we compared the expression of these genes in the stomach of healthy men and women.Methods: Sampling was done from 20 healthy men and 21 healthy women using endoscopy from the gastric antrum. Following RNA extraction and complementary DNA (cDNA) synthesis, expression of Foxa1 and Foxa2 genes was compared between the men and women using semi-quantitative technique of reverse transcription polymerase chain reaction (RT-PCR). Then, the data were analyzed using statistical t and ANOVA tests.Findings: The expression of Foxa1 was significantly higher in women than men (P = 0.041, df = 36, t = 2.12). In addition, the expression of this gene was significantly higher in people under the age of 45 years than people above it (P = 0.010, df = 36, t = 2.71). But about Foxa2 gene, no significantly results were seen.Conclusion: Foxa1 gene expression in women’s stomach is higher than men’s; besides, the expression of this gene in the stomach is decreased by age.

کلیدواژه‌ها [English]

  • Sexual dimorphism
  • Gene Expression
  • Sex hormones
  • Foxa2
  • Foxa1
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