Determination of the relative content of kanamycin B in kanamycin sulfate preparations by the method of PMR spectroscopy

1982 ◽  
Vol 16 (2) ◽  
pp. 161-163
Author(s):  
A. I. Chernyshev ◽  
V. S. Kartashov ◽  
A. P. Arzamastsev ◽  
S. E. Esipov

2021 ◽  
pp. 33-36
Author(s):  
L. V. Tkachenko ◽  
N. I. Sviridova ◽  
I. A. Gritsenko ◽  
S. N. Maksimov

The problem of endometrial polyps in women of reproductive age is one of the urgent problems of modern gynecology. The detection rate of PE according to the data of domestic and foreign scientists reaches 25–35%, and therefore they occupy a leading place in the structure of intrauterine pathology.The aim. To study the levels of specific autoantibodies (to double-stranded DNA; to TrM‑03 antigens and collagen) and to assess their prognostic value for the risk of PE formation and recurrence in patients of reproductive age.Materials and methods. Examination of 86 patients aged 18 to 45 years (average age was 34.1 ± 6.3 years), admitted for hysteroscopy, hysteroresection of PE. Study of the relative content of specific autoantibodies to double-stranded DNA; to TrM‑03 antigens and collagen in blood serum was carried out by the method of enzyme-linked immunosorbent assay using specialized reagent kits (ELI-P-Complex).Results. In the course of this study, it was found that in the overwhelming majority of cases (65.1%) PEs were manifested by various types of AMC. All patients with PE were diagnosed with a significant decrease in the level of autoantibodies to double-stranded DNA, which is a marker of apoptosis processes, as well as a statistically significant decrease in the levels of autoantibodies to platelet antigens TrM‑03. The profile of deviations in the level of autoantibodies to TrM‑03 from the reference range in the area of negative values correlated with an increase in the average level of autoantibodies to collagen.Conclusions. Determination of the levels of auto-ATs to double-stranded DNA in serum can be used as a marker for predicting the recurrent course of PE. Determination of the levels of auto-ATs to platelet antigens TrM‑03 and to collagen in blood serum can be used as markers for the development of AMC by the type of BMC or a combination of BMC and BMC in patients with endometrial polyps.



1975 ◽  
Vol 22 (5) ◽  
pp. 655-658
Author(s):  
�. B. Krymskaya ◽  
V. I. Moskvichev ◽  
T. F. Gavrilova ◽  
N. D. Antonova ◽  
I. S. Aul'chenko ◽  
...  
Keyword(s):  




2013 ◽  
Vol 5 (19) ◽  
pp. 5302 ◽  
Author(s):  
Ruiyong Wang ◽  
Rui Wang ◽  
Baoyu Ge ◽  
Xuelei Jia ◽  
Zhigang Li ◽  
...  


1979 ◽  
Vol 13 (7) ◽  
pp. 774-777
Author(s):  
A. I. Chernyshev ◽  
V. D. Kartseva ◽  
S. E. Esipov ◽  
A. P. Arzamastsev
Keyword(s):  


2019 ◽  
Vol 9 (5) ◽  
pp. 634-648 ◽  
Author(s):  
Mai M. Elnaggar ◽  
Dina A. Gawad ◽  
Tarek S. Belal


2015 ◽  
Vol 49 (8) ◽  
pp. 559-563 ◽  
Author(s):  
N. E. Kuz’mina ◽  
S. V. Moiseev ◽  
V. I. Krylov ◽  
O. V. Knyaz’kina ◽  
V. A. Yashkir ◽  
...  




2020 ◽  
Vol 8 (4) ◽  
pp. 251-256
Author(s):  
D. S. Makhotina ◽  
M. M. Kushch ◽  
O. Ie. Zhygalova ◽  
I. A. Fesenko

The aim of the study was to determine the features of the topography and the number of the total population of endocrinocytes and enterochromaffin cells in the intestines of ducks during the first year of the postnatal period of ontogenesis. The experiments were performed on domestic ducks (Anas platyrhynchos domesticus) of black white-breasted breed (n = 5) 9 groups: 1-, 3-, 7-, 14-, 21-days-old, 1-, 2-, 6-month-old and 1-year-old. Determination of the total population of endocrine cells (argyrophilic) and enterochromaffin (argentaffin) was performed on histological specimens made from cross-sections of the middle section of the duodenum, jejunum, ileum, cecum and rectum, stained by Masson and Grimelius. The endocrine cells of 1- and 3-days-old ducks had a «superficial» location due to insufficient formation of crypts and villi. In older birds, in the duodenum, jejunum, and ileum, both argyrophilic and argentaffin APUD cells were localized mainly in crypts, and in the cecum and rectum, they were also in the epithelial layer of the villi. During the entire observation period, the highest content of both argyrophilic and argentaffin endocrinocytes in all intestines were found in 21-days-old ducks. Already at 3-days-old age, the total number of endocrine cells in various intestines corresponded to those of an adult bird. The highest number of argyrophilic and argentaffin endocrinocytes was found in the ileum and cecum, less in the rectum and jejunum, and the smallest number was in the duodenum. Enterochromaffin cells are the most common type of endocrinocytes in the ducks’ intestines, their relative content ranged from 40.1 to 97.5%. The highest relative content of argentaffin cells at 1-, 3- and 7-day-old was observed in the duodenum, at 14-day-old – in the duodenum and colon, at 21-day-old – in the rectum, at 1- and 2-month-old in jejunum, at the age of 6 month – in the duodenum, jejunum and caecum, and at the age of 1-year-old – in the ileum and cecum. In addition to argyrophilic endocrinocytes, which were located in the epithelium, other cells were found in the loose connective tissue of the villi base, the cytoplasm of which was also intensively impregnated with silver nitrate. Such cells were smaller and mostly oval in shape. Their cytoplasm was impregnated almost evenly around the nucleus and had no polarity in the location of the granules. Probably those were mast cells, which also contain bioamines, and, as well as enteroendocrinocytes, are found in the argyrophilic reaction.



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