نتایج جستجو برای: steroid 17
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maniasis (Hart, I ) . T., ed.), pp. 885-890, Plenum Publishing Corporation, New York, NY 55 ltaughan, 1’. A,, Chance. M. I,. and Goad, I,. J. (1993) Exper. I’arasitol. 77, 1471 54 50 Koyle, F. T. ( IOOO) in Chemotherapy of Fungal 57 Pierce. A. M.. Unrau, A. M., Oehlschlager. A. C. and Woods, K. A. (1979) Can. J. Kiochem. 547,201 -20X 58 Kahman, M. L). and Pascal, K. A. (1090) J. Kiol. Chem. 265...
The aggregation of a steroid-functionalised porphyrin derivative occurs with the formation of J-type chiral species. Spectroscopic and SEM studies indicate that the initial concentration of the macrocycle strongly influences the morphology of the final mesoscopic structures, as a consequence of a change in the mechanistic course of the self-assembly process. Fibrillar structures are obtained at...
Wittig rearrangement of 17(20)-ethylidene-16-furfuryloxy steroids 5–8 was examined. Reaction of 17E(20)-ethylidene-16afurfuryloxy steroid 5 with t-BuLi in THF afforded (20S,22S)and (20S,22R)-22-hydroxy steroids 9, 10 and 17Z(20)-ethylidene-16a-(2furyl)hydroxymethyl steroid 11 in 61, 28, and 9% yields, respectively. Base treatment of 17E(20)-ethylidene-16b-furfuryloxy steroid 7 gave (20R,22R)-22...
OBJECTIVE This study sought to examine corticosteroidogenic enzyme activities in normo- and hyperandrogenic polycystic ovary syndrome (PCOS) patients. SUBJECTS AND METHODS This cohort study included 81 patients with biochemical hyperandrogenism and 41 patients with normal androgen levels. Enzyme activities were assessed according to the serum steroid product/precursor ratios at baseline and a...
Background It is important to find a predictor for the course of Idiopathic Nephrotic Syndrome for better planning of treatment. Renal cortical echogenicity in ultrasonography has been postulated as a marker for the course of renal disease. The present study aimed at evaluating the relationship between renal cortical echogenicity and the course...
Sex steroid hormones play important roles in many physiological processes, particularly in the reproduction of teleostei. Therefore, study of steroid hormones in fish is one of the important indicators of reproductive biology. In the present research, serum steroid hormones such as testosterone (T), 17β-estradiol (E2) and progesterone (P) in Esox lucius brood stocks, during one year, from ...
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