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541.
M Chatterjee-Kishore S Agrawal VK Singh KB Mathur A Haq SS Agarwal 《Canadian Metallurgical Quarterly》1997,41(3):521-528
The carotenoid composition of fruits of Rosa canina (Rosaceae) was determined comparatively by thin-layer chromatography (TLC) and high-performance liquid chromatography (HPLC) in total extracts and in three different fractions derived from previous separation of the total fruit extract on alumina columns. Both chromatographic analyses revealed as major carotenoids: beta-carotene, lycopene, beta-chryptoxanthin, rubixanthin, zeaxanthin and lutein. The distribution of these compounds was reproducible by TLC and by HPLC. The I-III fractions eluted successively from alumina columns by increasing the polarity of the solvents were analysed also by TLC and HPLC. In all situations, carotenoids were better separated and identified by gradient HPLC systems than by isocratic HPLC or TLC. 相似文献
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VK Litovkoa IP Zhurilo VP Kononuchenko VZ Moskalenko AM Kharagezov 《Canadian Metallurgical Quarterly》1998,(6):28-29
The experience of diagnosis and treatment of the ovarial tumor and cyst in 68 girls was summarized. Children were admitted to the hospital with an acute abdomen signs and in a planned order as well. All the patients were operated on. Children with benign ovarial tumor and cyst are alive. Four patients with malignancy have died. 相似文献
546.
The cytoplasmic domain of the syndecan family of heparan sulfate proteoglycans is punctuated by the presence of four regularly spaced tyrosine residues. In this report, we explore the possibility of whether the four tyrosine residues in the cytoplasmic domain of N-syndecan (Syndecan 3) are potential substrates for phosphorylation by a tyrosine kinase. Bacterially expressed elk kinase was used to phosphorylate a series of bacterially expressed N-syndecan fusion proteins. Our results clearly demonstrate that the tyrosine residues in the cytoplasmic domain of N-syndecan can be phosphorylated by a tyrosine-specific kinase, and that all four tyrosine residues are capable of being phosphorylated. 相似文献
547.
VK Singh S Biswas KB Mathur W Haq SK Garg SS Agarwal 《Canadian Metallurgical Quarterly》1998,17(3):345-368
Splenopentin (SP-5, Arg-Lys-Glu-Val-Tyr) and thymopentin (TP-5, Arg-Lys-Asp-Val-Tyr) are synthetic immunomodulating peptides corresponding to the region 32-34 of a splenic product called splenin (SP) and the thymic hormone thymopoietin (TP), respectively. TP was originally isolated as a 5-kDa (49-amino acids) protein from bovine thymus while studying effects of the thymic extracts on neuromuscular transmission and was subsequently observed to affect T cell differentiation and function. TP I and II are two closely related polypeptides isolated from bovine thymus. A radioimmunoassay for TP revealed a crossreaction with a product found in spleen and lymph node. This product, named splenin, differs from TP only in position 34, aspartic acid for bovine TP and glutamic acid for bovine splenin and it was called TP III as well. Synthetic pentapeptides (TP-5) and (SP-5), reproduce the biological activities of TP and SP, respectively. It is now evident that various forms of TPs were created by proteolytic cleavage of larger proteins during isolation. cDNA clones have been isolated for three alternatively spliced mRNAs that encodes three distinct human T cell TPs. The immunomodulatory properties of TP, SP, TP-5, SP-5 and some of their synthetic analogs reported in the literature have been briefly reviewed. 相似文献
548.
Forty-five patients with endometrial carcinoma were treated with local postoperative adjuvant radiotherapy during the period 1992 to 1995. Radiotherapy technique comprised both external beam irradiation as well as high-dose-rate vaginal vault brachytherapy. The 5-year overall survival and relapse-free survival rates were 74% and 73%, respectively and poorly differentiated histology grade was associated with poorer prognosis. Only 1 patient developed an isolated vaginal vault recurrence and another 9 patients relapsed mainly at the distal anatomical sites. The main radiotherapy-related complications were vaginal adhesion and stenosis. Radiotherapy is therefore effective as local adjuvant treatment in reducing risk of local-regional relapse in endometrial carcinoma. 相似文献
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OIa Kartashova LA Saldava VK Zaltsmane IaA Vandans 《Canadian Metallurgical Quarterly》1976,38(8):26-32
Reparative processe were studied on bioptic specimens taken from 190 patients with virus hepatitis. Figures of nitosis, amounts of binuclear and polyloid hepatocytes served as criteria of regneration. Phenomena of regeneration were shown to continue during the entire period of the disease. They were most pronounced in the areas adjacent to the zone of lesion of the parenchyma. A leading reparative process was intracellulr regneration. 相似文献