Journals / Bozok Tıp Dergisi / 2017 / Cilt: 7 - Sayı: 1

Analysis of Ovariectomy Effects on Ghrelin Expression in Female Rat Stomach

DİŞİ SIÇAN MİDESİNDE GHRELİN EKSPRESYONU ÜZERİNE OVARİEKTOMİNİN ETKİLERİNİN ANALİZİ

Pages
22–31
Publication Date
2022-10-11
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Decrease in ghrelin positive cells with ovariectomy may be caused by administration of 17 ? - estradiol.These results suggested that while bilateral ovariectomy causes no histological changes in the gastric mucosa, it is effective on gastric ghrelin immunreactivity.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Ghrelin is a hormone, which has effects on growth hormone secretion, appetite, food intake, carbohydrate metabolism, gastrointestinal system, cardiovascular system, cell proliferation and reproductive system.
📊
Key Findings & Data:In this study, we have intended to observe that bilateral ovariectomy will bring structural changes in the gastric tissue and as a result of these changes, affect how ghrelin immunoreactivity in the gastric mucosa.In study, 36 adult female Wistar-albino rats were used.
💡
Conclusion & Impact:Decrease in ghrelin positive cells with ovariectomy may be caused by administration of 17 ? - estradiol.These results suggested that while bilateral ovariectomy causes no histological changes in the gastric mucosa, it is effective on gastric ghrelin immunreactivity.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Ghrelin is a hormone, which has effects on growth hormone secretion, appetite, food intake, carbohydrate metabolism, gastrointestinal system, cardiovascular system, cell proliferation and reproductive system. In this study, we have intended to observe that bilateral ovariectomy will bring structural changes in the gastric tissue and as a result of these changes, affect how ghrelin immunoreactivity in the gastric mucosa.In study, 36 adult female Wistar-albino rats were used. These 36 rats were divided into seven groups. Later, experiment groups were divided into groups of estrogen-administrated and nonestrogen-administrated. At the end of the experiment, the rats' gastric tissues were removed. Tissues are administrated ghrelin immunohistochemical staining with avidin-biotin-peroxidase and routine Hematoxylin -Eosin (HE) method.In the groups of ovariectomized rats that are not administrated estrogen were not monitored with morphological differences. With the groups of the third and the fifth day after ovariectomy, the number of ghrelin positive cells in the gastric oxyntic mucosa significantly increased. With the group of the seventh day after ovariectomy, the number of ghrelin positive cells in the gastric mucosa was decreased. Decrease in ghrelin positive cells with ovariectomy may be caused by administration of 17 ? - estradiol.These results suggested that while bilateral ovariectomy causes no histological changes in the gastric mucosa, it is effective on gastric ghrelin immunreactivity.

Özet

Ghrelin, büyüme hormonu salgılanması, iştah, besin alımı, karbonhidrat metabolizması, gastrointestinal sitem, kardiovasküler sistem, hücre proliferasyonu ve üreme sistemi üzerine etkileri olan bir hormondur. Biz bu çalışmada bilateral ovariektominin mide dokusunda neden olduğu yapısal değişiklikleri, bu değişikliklerin sonucunda mide mukozasındaki ghrelin immünreaktivitesinin nasıl etkilendiğini belirlemeyi amaçladık.Bu çalışmada 36 adet dişi Wistar-albino sıçan kullanılmıştır. Bu sıçanlar, yedi eşit gruba ayrılmıştır. Daha sonra deney grupları östrojen uygulanan ve uygulanmayan gruplara ayrılmıştır. Deneyin sonunda sıçanların mide dokuları çıkarılmıştır. Dokulara rutin hematoksilen-eozin(HE) ve avidinbiyotin metodu ile ghrelin immünohistokimya boyama prosedürleri uygulanmıştır. Östrojen uygulanmayan ovariektomize sıçanlarda morfolojik farklılıklar gözlenmemiştir. Ovariektomiden sonraki 3. ve 5. gün gruplarının gastrik oksintik mukozalarında ghrelin pozitif hücrelerin sayısı önemli derecede artmıştır. Ovariektomiden sonraki 7.gün grubunda gastrik mukozada ghrelin pozitif hücrelerin sayısı azalmıştır. Bu azalma 17-? östrodiol uygulanmasından kaynaklanmış olabilir. Bu sonuçlar; bilateral ovariektomi gastrik mukozada histolojik değişikliklere neden olmazken, gastrik ghrelin immünreaktivitesi üzerine etkili olduğunu göstermektedir.

🔖

Cite This Article

YAKAN, B., DOĞANYİĞİT, Z., RIHTIM, T., YAY, A. (2022). Analysis of Ovariectomy Effects on Ghrelin Expression in Female Rat Stomach. Bozok Tıp Dergisi, Cilt: 7 - Sayı: 1, 22–31. https://ajindex.com/articles/468776

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (14)

  1. Kojima M, Hosoda H, Date Y, Nakazato M, Matsuo H, Kangawa K.Ghrelin is a growth hormone releasing acylated peptide from stomach. Nature 1999;402:656-660
  2. Tanaka M, Hayashida Y, Iguchi T, Nakao N, Nakai N, Nakashima K. Organization of the Mouse ghrelin gene and promoter: occurrence of a short noncoding firs exon. Endocrinology 2001; 142: 3697-3700
  3. Gnanapavan S, Kola B, Bustin SA, Morris DG, McGee P, Fairclough P, Bhattacharya S, Carpenter R, Grossman AB, Korbonits M. The tissue distribution of the mRNA of ghrelin and types of its receptor GHS-R in humans. Clin. Endocrinol Metab. 2002; 87: 2988-2991
  4. Kojima M, Hosoda H, Date Y, Nakazato M, Matsuo H, Kangawa K. Ghrelin: discovery of the natural endogenous ligand for the growth hormone secretagogue receptor. Trends. Endocrinol. Metab. 2001; 12: 118-122
  5. Papotti M, Ghe C, Cassoni P, et al. Growth hormone secrataguge binding sites in peripheral human tissues. J. Clin. Endocrinol. Metab. 2000; 85: 3803-3807
  6. Gualillo O, Caminos J, Blanco M, et al. Ghrelin, a novel placental-derived hormone. Endocrinology 2001;142:788-794
  7. Gaytan F, Barreiro ML, Caminos JE, Chopin LK, et al. Expression of Ghrelin and Its Functional Receptor, the Type 1a Growth Hormone Secretagogue Receptor, in Normal Human Testis and Testicular Tumors. The Journal of Clinical Endocrinology & Metabolism. 2004; 89: 400-409
  8. Gualillo O, Caminos J, Kojima M, et al. Gen-der and gonadal influences on ghrelin mRNA levels in rat stomach. Eur J Endocrinol 2001; 144: 687-690
  9. Caminos JE, Tena-Sempere M, Gaytan F, et al. Expression of ghrelin in the cyclic and pregnant rat ovary. Endocrinology 2003; 144: 1594-602
  10. Zigman JM & Elmquist JK. Mini review: from anorexia to obesity - the yin and yang of body weight control. Endocrinology 2003; 144: 3749-3756
  11. Kojima M, Kangawa K. Ghrelin: structere and function. Physiol Rev 2005: 85: 495-522
  12. Tena-Sempere M & Huhtaniemi I. Gonadotropins and gonadotropin receptors, Reproductive Medicine, Molecular, Cellular and Genetic Fundamentals, New York 2003, pp. 225-244
  13. Pagotto U, Gambineri A, Vicennati V, et al. Plasma ghrelin, obesity, and the polycystic ovary syndrome: correlation with insulin resistance and androgen levels. Journal of Clinical Endocrinology and Metabolism 2002; 87: 5625-5629
  14. Pagotto U, Gambineri A, Pelusi C, et al. Testosterone replacement therapy restores normal ghrelin in hypogonadal men. Journal of Clinical Endocrinology and Metabolism 2003;88: 4139-414