14 research outputs found
Asetominofen ile SıçanlardaOluşturulan Akut Karaciğer Hasarına Umblikal korddan Elde Edilen Mezenkimal Kök Hücre ve Eritropoetinin Etkisi
Curcumin Attenuates Nonylphenol-Induced Toxicity In Brain Development; An Experimental Study
OBJECTIVE: Nonylphenol is an alkylphenol compound that has been widely used in the industry. It has endocrine-disrupting properties. The effect of alkylphenol compounds on development has been the subject of a limited number of studies. Herein, we aimed to examine curcumin's effect against nonylphenol toxicity on brain development. METHODS: For this study, 30 pregnant female Wistar albino rats from the Animal Laboratory of Erciyes University, Faculty of Medicine, were used. The rats were randomly divided into the following 5 groups; the control group, corn oil group (150μl/kg/day), nonylphenol group (50μl/kg/day), curcumin group (100mg/kg/day) and curcumin+nonylphenol group (100mg/kg/day+50 μl/kg/day). After the sacrification, histological and immunohistochemical evaluations were made. RESULTS: Histopathologically, vascular congestion, increased GFAP, and p-tau immunoreactivity intensity was found in the developing brain of the nonylphenol group. Moreover, co-treatment of nonylphenol administrated with curcumin showed slight pathological alterations with vascular congestion. CONCLUSIONS: These data suggest that nonylphenol-induced increase in GFAP and p-tau immunoreactivity contributes to toxicity caused impairment in the rat brain. Additionally, curcumin had a neuroprotective effect against nonylphenol-induced neurotoxicity
ASETAMİNOFEN İLE SIÇANLARDA OLUŞTURULAN AKUT KARACİĞER HASARINA UMBLİKAL KORDDAN ELDE EDİLEN MEZENKİMAL KÖK HÜCRE VE ERİTROPOİETİNİN ETKİSİ
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Investigation of the effects of umbilical cord-derived mesenchymal stem cells and curcumin on Achilles tendon healing – can they act synergistically? Aşil tendonu iyileşmesinde umbilikal kord-kaynaklı mezenkimal kök hücre ve kurkuminin etkilerinin incelenmesi - sinerjistik etkileri olabilir mi?
BACKGROUND: It is known that curcumin and umbilical cord-derived mesenchymal stem cells (UC-MSCs) positively affect experimental tendon injury healing. This study investigated individual effects and potential synergistic effects of using curcumin and UC-MSCs alone and together. METHODS: Eighty female Wistar albino rats were randomly divided into five groups: Control, curcumin, sesame oil, MSCs, and Curcumin+MSCs groups. In all rats, punch tendon defect was created in both right and left Achilles tendons. While no additional treatment was applied to the control group, curcumin, sesame oil used as a solvent for curcumin, MSCs, and MSCs and curcumin com-bination were applied locally to the injury site, respectively, in the other groups. Curcumin was solved in sesame oil before application. In each group, half of the animals were euthanized in the post-operative 2nd week while the other half were euthanized in the postoperative 4th week. The right Achilles was used for biomechanical testing, while the left Achilles was used for histological evaluation and immunohistochemical analysis of type I, Type III collagen, and tenomodulin. RESULTS: Histologically, significant improvement was observed in the curcumin, MSCs, and Curcumin+ MSCs groups compared to the control Group in the 2nd week. In the 2nd and 4th weeks, Type III collagen was significantly increased in the curcumin group compared to the control group. In week 4, tenomodulin increased significantly in the curcumin and MSCs groups compared to the control group. Tendon tensile strength increased significantly in MSCs and Curcumin+MSCs groups compared to the control group in the 4th week. No superiority was observed between the treatment groups regarding their positive effects on recovery. CONCLUSION: Locally used curcumin and UC-MSCs showed positive effects that were not superior to each other in the healing of injury caused by a punch in the Achilles tendons of rats. However, synergistic effects on healing were not observed when they were applied together
SİYATİK SİNİR HASARI OLUŞTURULAN SIÇANLARDA ERİTROPOETİNİN VE UMBİLİKAL KORD KAYNAKLI MEZENKİMAL KÖK HÜCRELERİNİN SİNİR REJENERASYONU ÜZERİNE ETKİSİ
Periferik sinirler pek çok travmaya maruz kalır ve mevcut tedavilerle tam bir rejenerasyon mümkün olmamaktadır. Bu sebeple siyatik sinir ‘crush hasar’ modelinde kök hücre ve eritropoetinin sinir rejenerasyonuna olan katkılarını araştırmayı amaçladık. Umbilikal korddan elde edilen hücrelerin mezenkimal kök hücre karakterizasyonu yapıldı. Ağırlıkları 130-150 g arasında olan 50 adet Wistar albino türü erişkin dişi sıçan rastgele 5 gruba ayrıldı. Gruplar; sadece cilt kesisi oluşturulan Sham grubu, siyatik sinirde hasar oluşturulup herhangi bir tedavi uygulanmayan hasar grubu, sinirde hasar oluşturulup insan rekombinant eritropoetinin 5000 U/kg olacak şekilde intraperitoneal yolla verildiğihasar+eritropoetin grubu, sinirde hasar oluşturulup lokal olarak mezenkimal kök hücre (350.000 adet) verilen hasar+mezenkimal kök hücre grubu ve sinirde hasar oluşturulup eritropoetin ve kök hücrenin verildiği hasar+eritropoetin+mezenkimal kök hücre grubu şeklinde belirlendi. 0. gün, 14. gün ve 28. günlerde tüm gruplara siyatik fonksiyonel indeks testi yapıldı ve 28. günde deney sonlandırıldı. Siyatik sinirlerin oil red o boyası ile genel histopatolojik görünüm, akson sayısı, akson çapı değerlendirildi. İmmünofloresan olarak da dokudaki Nerve Growth Factor, Neurofilament-h ve kaspaz-3 immunreaktiviteleri belirlendi. Genel histopatolojik görünüm değerlendirildiğinde Sham grubuna ait histolojik yapı aksonların görünümü ve sinir demetleri düzgündü. Sham grubuna en yakın grup hasar+mezenkimal kök hücre grubundaydı. Akson sayısı kök hücre verilen gruplarda hasar grubu ile kıyaslandığında anlamlı olarak artmıştı. Nerve Growth Factor immunreaktivite yoğunluğu ise hasar+mezenkimal kök hücre grubunda Sham’e en yakın değerdi ve hasar+mezenkimal kök hücre grubu ile hasar grubu arasında anlamlı fark vardı. Neurofilament-h yoğunluğu Sham grubunda en yüksekti ve hasar grubu ile tüm tedavi grupları kıyaslandığında tedavi gruplarında anlamlı olarak artmıştı. Bu çalışmada sıçanların siyatik sinirinde bulldog klemp ile oluşturulan crush hasarın rejenerasyonuna umbilikal korddan elde edilen kök hücre ve insan rekombinant eritropoetin tedavilerinin katkı sağladığı bulunmuştur. Kullandığımız Neurofilament-H, Nerve Growth Factor ve oil red o boyamaları bu ayrımı sağlamaya yardımcı olmuştur. </p