Sıçan testis dokusunda kadmiyum klorür’ün oluşturduğu yapısal değişiklikler ve bu değişiklikler üzerine metallothionein’nin etkileri: Elektron mikroskobik çalışma
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Dosyalar
Tarih
2011
Dergi Başlığı
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Cilt Başlığı
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Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Amaç: Bu çalışmada, testiküler dokuda kadmiyum klorürün sebep olduğu yapısal değişiklikler ve bu değişiklikler üzerine koruyucu amaçla uygulanan metallothioneinin etkilerinin belirlenmesi amaçlandı. Gereç Yöntem: 36 adet erişkin Wistar rat 3 gruba ayrıldı. Birinci gruba (n:16) 3.5 mg/kg/gün kadmiyum klorür subkutan yolla enjekte edildi. İkinci grup ratlara (n:16) ise 3.5 mg/kg/gün kadmiyum klorür subkutan yolla ve metallothionein (30 ?mol/kg/gün) intraperitoneal yolla birlikte enjekte edildi. Üçüncü grup ratlar (n: 4) kontrol olarak kullanıldı. Deneysel çalışmanın 1., 3., 5. ve 7. günlerinde eter anestezisi altında testiküler doku örnekleri 2.5% ‘luk glutaraldehit solusyonuna alınarak tespit edildi. Elektron mikroskobik incelemeler için bloklar hazırlandı. Bulgular: Elektron mikroskobik incelemelerde, kadmiyum klorür enjeksiyonunun özellikle 3. gününden sonra şiddetli doku hasarı gözlendi. Bu hasar deneyin ilerleyen günlerinde giderek artmaktaydı. Kadmiyum klorür toksikasyonu sonucunda testis dokusunda interstisyel alanda kollagen artışı, leydig hücrelerinde mitokondri artışı, spermatogenik hücrelerde lipid birikimi ve apoptozis tespit edildi. Benzer yapısal değişiklikler kadmiyumla birlikte koruyucu amaçla metallothionenin enjekte edilen grupta da gözlendi. Sonuç: Çalışmanın sonucunda kadmiyumun, testis dokusunda oldukça ciddi yapısal bozukluklar meydana getirdiği saptandı. Uzun süre kadmiyum maruziyetinin infertiliteye sebep olan ciddi hasarlar oluşturabileceği söylenebilir.
Objective: This study was undertaken to investigate cadmium chloride-induced structural changes and the probable protective effects of co-administration of metallothionein in the testicular tissue. Material Methods: Thirty-six adult Wistar rats were divided in to three groups. Cadmium chloride (3.5mg/kg/day) was subcutaneously injected to the first group (n: 16) whereas second group of rats (n:16) received both cadmium chloride (3.5mg/kg/day) and metallothionein (30μmol/kg/day, ip). The 3rd group (n:4) used as control. On the 1st, 3rd, 5th and 7th day of experimental study, testicular tissue samples were taken under ether anesthesia and fixed with 2.5% glutaraldehyde then prepared blocks for electron microscopic examination. Results: On the electron microscopic examination, particularly after the 3rd day of injection of cadmium chloride, severe tissue damage was evident. The damage gradually increased relative to the time of administration of cadmium chloride. It was determined that cadmium chloride led to collagen increase in the interstitial field, lipid accumulation and apoptosis in the spermatogenic cells increase of mitochondria in the Leydig cells. Similar structural changes were observed in the group that was co-administered metallothionein for protection. Conclusions: As a results, cadmium chloride caused serious structural damage in the testicular tissue. Long term exposure to cadmium chloride may give rise to infertility.
Objective: This study was undertaken to investigate cadmium chloride-induced structural changes and the probable protective effects of co-administration of metallothionein in the testicular tissue. Material Methods: Thirty-six adult Wistar rats were divided in to three groups. Cadmium chloride (3.5mg/kg/day) was subcutaneously injected to the first group (n: 16) whereas second group of rats (n:16) received both cadmium chloride (3.5mg/kg/day) and metallothionein (30μmol/kg/day, ip). The 3rd group (n:4) used as control. On the 1st, 3rd, 5th and 7th day of experimental study, testicular tissue samples were taken under ether anesthesia and fixed with 2.5% glutaraldehyde then prepared blocks for electron microscopic examination. Results: On the electron microscopic examination, particularly after the 3rd day of injection of cadmium chloride, severe tissue damage was evident. The damage gradually increased relative to the time of administration of cadmium chloride. It was determined that cadmium chloride led to collagen increase in the interstitial field, lipid accumulation and apoptosis in the spermatogenic cells increase of mitochondria in the Leydig cells. Similar structural changes were observed in the group that was co-administered metallothionein for protection. Conclusions: As a results, cadmium chloride caused serious structural damage in the testicular tissue. Long term exposure to cadmium chloride may give rise to infertility.
Açıklama
Anahtar Kelimeler
Kadmiyum, Testis, Metallothionein, Mikroskop, Cadmium, Testes, Metallothionein, Microscopy
Kaynak
Fırat Üniversitesi Sağlık Bilimleri Tıp Dergisi
WoS Q Değeri
Scopus Q Değeri
Cilt
25
Sayı
1
