Surface alteration in aging of rat tubae uterinae epithelium

Amaç: Çalışmamızda değişik yaş gruplarındaki tuba uterina kesitlerinde apikal yüzey farklanmalarının düzenleniminin tarayıcı elektron mikroskop ile değerlendirilmesi amaçlandı. Gereç ve Yöntem: Gazi Üniversitesi Deney Hayvanları Etik Kurulu tarafından onaylanan çalışmamızda 36 Wistar tipi sıçandan 6 grup oluşturuldu; 1. grup: yenidoğan (1. gün) (n=6), 2. grup: genç (22. gün) (n=6), 3. grup: prepubertal (4-6 hafta) (n=6), 4. grup: yetişkin (10 hafta) (n=6), 5. grup: premenapozal (8 ay) (n=6), 6. grup: yaşlı (18-20 ay) (n=6). doku örnekleri JEOL JSM-6060LV tarayıcı elektron mikraskopta incelendi. Bulgular: Doğum sonrasından menopoza kadar tuba uterina’daki epitel hücrelerin yüzey farklanmaları değerlendirildiğinde, mikrovilluslu hücrelerin ilk olarak olgunlaşan ve yaşa bağlı ilk dejenere olan hücre formu oldukları belirlendi. Silyalı hücrelerin son olgunlaşan hücreler oldukları ve post menopozal dönemde de gelişkin olarak varlıklarını sürdürdükleri izlendi. Sonuç: Sonuç olarak menopoza doğru ilerledikçe, mikrovilluslu hücrelerde görülen dejenerasyonla birlikte salgılama yetersizliğinin spermiyum beslenmesini olumsuz yönde etkiliyor olabileceği kanısına varıldı. Silyalı hücrelerde gözlenen yaşa bağlı artışın ise yaşa bağlı kas kontraksiyonunda olası azalmaya karşı silya hareketinin spermiyum ve erken embriyon transportunda aktif rol oynamasına bağlı gerçekleşen fizyolojik bir sonuç olabileceği kanısına varıldı.

Yaşa bağlı sıçan tuba uterina epitelinde gözlenen yüzey değişiklikleri

Objective: Aim of the study was evaluating arrangement of apical surface differentiation in cross-sections of tuba uterinae in different age groups by scanning electron microscope. Material and Methods: Six groups were created with 36 Wistar rat; 1st group: neonate (1th day) (n=6), 2nd group: young (22nd day) (n=6), 3rd group: prepubertal (4-6 week) (n=6), 4th group: adult (10 week) (n=6), 5th group: premenopausal (8 month) (n=6), 6th group: old (18-20 month) (n=6). Tissue samples examined with scanning electron microscope. Results: When surface differentiations of epithelial cells in tubae uterinae from birth to menopause were considered, it was determined that the cell with microvilli are first maturing cells and degenerated by ages first. It was observed that the ciliated cells are last maturing cells and subsisting as a mature cell during the postmenopausal period. Conclusion: Towards the menopause degeneration in microvillous cells together with lack of secretion may affect sperm nutrition adversely. The increase of ciliated cells in aging may be a physiological result related to the active role of cilia movement in the sperm and early embryo transport against a probable decrease in muscle contraction in aging.

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Balkan Medical Journal-Cover
  • ISSN: 2146-3123
  • Başlangıç: 2015
  • Yayıncı: Erkan Mor
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