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- 저자 : Kocabas, Coskun (검색결과 3 건)
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Effect of Vitamin D on YKL-40: Rat Hypercholesterolemia Model
Rahim Kocabas 대한심장학회 2023 Korean Circulation Journal Vol.53 No.1
Background and Objectives: YKL-40 is considered to be associated with cardiovascular disease (CVD). In this study, the effect of serum 25(OH) vitamin D [25(OH)VitD] differences between groups on YKL-40 was evaluated on a hypercholesterolemia rat model. Methods: Thirty-two male rats (wistar albino) were equally divided into 4 groups. The first group was the control group; the second group was high-cholesterol (H-CH) adequate vitamin D (VitD) group (H-AdeVD). The third group was the H-CH deficient VitD group (H-DefVD), and the last group was designed with the H-CH supplement VitD (H-SupVD). The feeding process consisted of 2 stages. At the first stage (5 months), the H-DefVD group was fed on VitD deficient chow, while the other groups (control, H-AdeVD, H-SupVD) were fed on standard chow. At the second stage (3 months), the H-AdeVD and the H-SupVD groups were fed on the H-CH chow, whereas the H-DefVD group was fed on the H-CH-VitD deficient chow. Moreover, the H-SupVD group was given 100 IU/kg/day VitD along with the H-CH chow. Results: Compared with the control group, interleukin-6 (IL-6), soluble intercellular adhesion molecule-1 (sICAM-1), soluble vascular cell adhesion molecule-1 (sVCAM-1), and YKL-40 values in the H-DefVD groups increased significantly (p<0.001, p<0.001, p=0.009, p=0.005; sequentially). Conclusion: It can be concluded that VitD can suppress the YKL-40, thus, it will prevent CVD development in rat. Therefore, further clinical studies related with human will reveal the effect of VitD and YKL-40 on CVD development.
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The effects of orchiectomy and steroid on fertility in experimental testicular atrophy
Muslim Yurtcu,Sumeyye Kozacioglu,Rahim Kocabas The Korean Society for Reproductive Medicine 2023 Clinical and Experimental Reproductive Medicine Vol.50 No.2
Objective: Despite our understanding of Sertoli cell function and the state of spermatogenesis, the underlying mechanisms remain unclear. This study was conducted to compare the effects of orchiectomy and steroid treatment on fertility in testicular atrophy occurring after testicular torsion. Methods: Thirty-three rats were divided into four groups. The atrophy, orchiectomy, and atrophy-steroid groups each contained nine rats, while the control group contained six. The left testes were rotated 720°, and atrophy was observed. In the atrophy-steroid rats, orchiectomy was performed after atrophy, and 1 mg/kg steroid was injected. Each male rat was housed with five female rats for 6 days. The fertility of the male rats was evaluated based on the pregnancy of the female rats. Left and right orchiectomies were performed to determine the tissue Johnsen score (JS) and the serum inhibin B (IB) level. Results: JS values were significantly lower in the atrophy, orchiectomy, and atrophy-steroid groups than in the control group (p<0.05), while no significant difference was observed in JS between the atrophy and orchiectomy groups (p>0.05). Similarly, no significant differences in IB level or fertility percentage were found between the atrophy and orchiectomy rats (p>0.05). Conclusion: In unilateral testicular atrophy, which can occur in the prepubertal period due to various causes, orchiectomy does not appear to benefit fertility, as indicated by IB, JS, and the fertility percentage.
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