发布求助
文献互助 智能选刊 最新文献

Eksperimentalna meditsina i morfologiia最新文献

筛选
英文 中文
[The polarization microscopy characteristics of collagen in dura mater transplants]. 【硬脑膜移植中胶原蛋白的偏振显微镜特征】。
Eksperimentalna meditsina i morfologiia Pub Date : 1994-01-01
Z Mazgalova
{"title":"[The polarization microscopy characteristics of collagen in dura mater transplants].","authors":"Z Mazgalova","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>In order to establish the polarizing microscopical characteristics of collagen in preserved dura mater transplants and in controls, a study was performed. Attempt was made for an intrpretation of velocity of collagen rehydratation by means of data of total anisotropy. The results show a faster rehydratation of collagen fibrils in control (unpreserved) dura mater. Changes in the velocity of rehydratation of collagen fibrils in lyophilized dura mater were connected with structural changes during lyophilization. The most appropriate period of time for rehydratation of lyophilized dura mater transplant was determined from the results of the polarizing microscopical study.</p>","PeriodicalId":11560,"journal":{"name":"Eksperimentalna meditsina i morfologiia","volume":"32 1-2","pages":"62-73"},"PeriodicalIF":0.0,"publicationDate":"1994-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19687157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Radioimmunological determination of glucagon in Bulgarian insulin substances]. [放射免疫学测定保加利亚胰岛素物质中胰高血糖素]。
Eksperimentalna meditsina i morfologiia Pub Date : 1994-01-01
F Dimitrova, L Sirakov
{"title":"[Radioimmunological determination of glucagon in Bulgarian insulin substances].","authors":"F Dimitrova,&nbsp;L Sirakov","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The contents of glucagon in insulin substances (\"Pharmachim\" Ltd.) is determined in accordance to the needs of pharmaceutical production. The middle quantitative values and standart deviation are specified. Nevertheless that monocomponent and bovine conventional insulin substances pertain to groups of different purity they exibit the highest purity. Bovine conventional insulins exibit the greatest variability, while monocomponent insulins are destinctively homogenous. Single-peak insulin substances exhibit less purity, but this group is more homogenous. The middle quantitative value is within the admissible limitations. Porcine conventional insulins have high contents of glucagon as well as high values of standard deviation.</p>","PeriodicalId":11560,"journal":{"name":"Eksperimentalna meditsina i morfologiia","volume":"32 1-2","pages":"3-13"},"PeriodicalIF":0.0,"publicationDate":"1994-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19686551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Morphological studies of the lungs in experimental burns]. [实验性烧伤肺的形态学研究]。
Eksperimentalna meditsina i morfologiia Pub Date : 1994-01-01
Ts Boshnakova, V Nankova, L Sedmakova
{"title":"[Morphological studies of the lungs in experimental burns].","authors":"Ts Boshnakova,&nbsp;V Nankova,&nbsp;L Sedmakova","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The authors studied light- and electronmicroscopically the lungs of 20 rats after experimental burns in closed space. Twenty one histological parameters were evaluated. Two mechanisms of quickly developed fatal outcome were established--asphyxia and acute injury of shock lung. Electronmicroscopically there was an increased secretion of surface active materials and degenerative changes in the alveolar epithelium and capillary endothelium. Carbon particles found in the upper respiratory tract were considered as signs of vitality.</p>","PeriodicalId":11560,"journal":{"name":"Eksperimentalna meditsina i morfologiia","volume":"32 1-2","pages":"40-52"},"PeriodicalIF":0.0,"publicationDate":"1994-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19687155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[The ultrastructural changes in type-2 pneumocytes in experimental heat and endotoxic shock]. [实验性热和内毒素休克下2型肺细胞超微结构的变化]。
Eksperimentalna meditsina i morfologiia Pub Date : 1994-01-01
A Angelov
{"title":"[The ultrastructural changes in type-2 pneumocytes in experimental heat and endotoxic shock].","authors":"A Angelov","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The early ultrastructural changes in type 2 pneumocytes (PN2) as a result of burn and endotoxic shock in rats and rabbits were studied. Stereotype morphological damages in PN2 were established. Differences between experimental models were quantitative and depend mainly from the severity of shock and animals species. Morphofunctional heterogenity of PN2 population leads to the appearance of three groups of PN2: 1) PN2 with degenerative changes; 2) PN2 with \"stress\" hyperactivity and exocytosis of lamelar bodies; and 3) PN2 with increased number of lamelar bodies. Disturbances of lamelar bodies morphogenesis (conglomerates, giant lamelar bodies) as well as lamelar bodies formation by alternative way - directly from rough endoplasmic reticulum were observed. The predominant part of the described PN2 lesins were adaptive in character.</p>","PeriodicalId":11560,"journal":{"name":"Eksperimentalna meditsina i morfologiia","volume":"32 3-4","pages":"27-39"},"PeriodicalIF":0.0,"publicationDate":"1994-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19823459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Plasma renin activity in tachistin-stimulated hypercalcemia and under the effect of chlorazine]. [血凝素刺激的高钙血症和氯嗪作用下的血浆肾素活性]。
Eksperimentalna meditsina i morfologiia Pub Date : 1994-01-01
G Ilieva, A Tolekova, A Logofetov, K Trifonova
{"title":"[Plasma renin activity in tachistin-stimulated hypercalcemia and under the effect of chlorazine].","authors":"G Ilieva,&nbsp;A Tolekova,&nbsp;A Logofetov,&nbsp;K Trifonova","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The aim of the present study was to elucidate the correlation between the Renin secretion and increased Plasma Calcium concentration and the role of Calmodulin in this process. Plasma Renin activity was determined radioimmunologically in 31 white rats, that were grouped as follows: group I - 7 controls loaded for 6 days perorally with 0.5 ml/200 g b.w. glycerin and injected i.m. for 6 days with 0.1 ml/200 g b.w. with 0.9% NaCl; group II - 8 rats, treated for 6 days with Tachistin 0.0025 mg/200 g b.w., dissolved in glycerin 0.5 ml/200 g b.w.; group III - 5 rats, treated with Tachistin 0.005 mg/200 g b.w. in the same manner; group IV - 5 rats injected i.m. with Chlorazin 0.5 mg/200 g b.w. for 6 days; group V - 6 rats, loaded with double dose Tachistin and with Chlorazin 0.5 mg/200 g b.w. for 6 days. Blood samples were taken intracardially on the seventh day from the beginning of the experiment and were analyzed with kits of Sorin-Biomedica-Italy. Our results suggest that the hypercalcemia induced by Tachistin caused a dose-dependent increase of PRA and Ca-Calmodulin complex is the dominant second messenger of Renin secretion.</p>","PeriodicalId":11560,"journal":{"name":"Eksperimentalna meditsina i morfologiia","volume":"32 3-4","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"1994-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19823536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[The facilitation and inhibition of monosynaptic reflexes in the upper extremity of nursing infants]. 哺乳婴儿上肢单突触反射的促进与抑制。
Eksperimentalna meditsina i morfologiia Pub Date : 1993-01-01
V Gatev, B Angelova, I Litvinenko
{"title":"[The facilitation and inhibition of monosynaptic reflexes in the upper extremity of nursing infants].","authors":"V Gatev,&nbsp;B Angelova,&nbsp;I Litvinenko","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The upper extremity H-reflex was investigated in healthy children, aged from 3 to 15 months. The electromyographic reflex responses of m. abduct or digiti min. and m. flexor carpi uln. were registered after electric stimulation of n. ulnaris. We constructed the curve of restoration of H-reflex after application of a couple of stimuli with equal duration and intensity, but over increasing intervals. We established changes in the excitation of H-reflex, obtained from m. flexor carpi uln., by increasing of the interval between the conditional and test stimuli. In the interval of 5 ms maximal facilitation was registered, while in the interval of 20 and 30 ms-maximal inhibition. In children aged from 3 to 9 months with persisting H-reflex in m. abductor digit min. we established possibility for its complete inhibition after application of a couple of stimuli with interval of 20 ms. In children aged from 9 to 15 months with vanished H-reflex in m. abductor digiti min. possibility for its obtaining was established after application of a couple of stimuli with interval of 5 ms. Quotation is made of evidences in favour of the hypothesis for the functional character of the disappearance of H-reflex in the small muscles of the arm in the first year of life of the children.</p>","PeriodicalId":11560,"journal":{"name":"Eksperimentalna meditsina i morfologiia","volume":"31 1-2","pages":"7-16"},"PeriodicalIF":0.0,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19247196","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Morphological changes in the nervous system in lead poisoning. II. Experimental lead-induced encephalopathy]. 铅中毒后神经系统的形态学改变。2实验性铅致脑病[j]。
Eksperimentalna meditsina i morfologiia Pub Date : 1993-01-01
A Ivanova, S Nachev
{"title":"[Morphological changes in the nervous system in lead poisoning. II. Experimental lead-induced encephalopathy].","authors":"A Ivanova,&nbsp;S Nachev","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The morphological investigation in an experimental model of lead (Pb) encephalopathy (according to the method of A. Pentschew, 1966) is presented. Electron microscopy-dense inclusions are found out in the nuclei and cytoplasm of astrocytes and in some ependyma cells in the investigated cortical and subcortical (paraventricular) structure of the brain and spinal cord. This confirms the direct toxic action of Pb on these structures and proves their participation in pathogeneses of the developing encephalopathy. The established inclusions in the ependyma and the data about a disturbance of the blood-brain barrier give a reason to be proposed the possibility for a penetration of Pb in the nervous system not only through a blood but also through a cerebrospinal fluid way.</p>","PeriodicalId":11560,"journal":{"name":"Eksperimentalna meditsina i morfologiia","volume":"31 3-4","pages":"28-38"},"PeriodicalIF":0.0,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18806191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[A pharmacological study of the hepatoprotective activity of fructose-1,6-diphosphate]. [果糖-1,6-二磷酸保护肝脏活性的药理研究]。
Eksperimentalna meditsina i morfologiia Pub Date : 1993-01-01
E Klouchek, M Markov, A Popov
{"title":"[A pharmacological study of the hepatoprotective activity of fructose-1,6-diphosphate].","authors":"E Klouchek,&nbsp;M Markov,&nbsp;A Popov","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A fructose-1,6-diphosphate preparation was tested for hepatoprotective activity through biochemical and morphologic studies in experiments on Wistar rats sustaining D-galactosamine- and paracetamole-induced hepatotoxicity. Findings indicated the modeled hepatic lesions to be readily reproducible, to simulate some characteristics of human liver pathology, and to be suitable for testing substances expected to have hepatoprotective action; intraperitoneal administration of fructose-1,6-diphosphate at a dose of 1000 mg/kg body weight proved moderately protective against liver damage by D-galactosamine; the benefit observed concerned mostly dystrophic and inflammatory changes in the liver; in a number of cases, correlation was noted between biochemical serum parameters and pathomorphologic liver alterations.</p>","PeriodicalId":11560,"journal":{"name":"Eksperimentalna meditsina i morfologiia","volume":"31 3-4","pages":"60-71"},"PeriodicalIF":0.0,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18806196","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Changes in the heart rhythm studied by the PWC170 test following physical loading]. [物理负荷后PWC170试验研究的心律变化]。
Eksperimentalna meditsina i morfologiia Pub Date : 1993-01-01
E Pavlova, D Dobrev
{"title":"[Changes in the heart rhythm studied by the PWC170 test following physical loading].","authors":"E Pavlova,&nbsp;D Dobrev","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>By application of the two-component test PWC170, the changes in the heart rate (HR) and the difference in the duration of the minimal and maximal cardiac cycles (SAr), were studied. The indices (HR and SAr) were recorded by electrocardiography prior to the test (initial values), during the three-minute pause between the two loadings and in the three-minute recovery period following the second loading. It was found that SAr in the pause after the first loading with lower intensity of the test was more markedly expressed with respect to its initial values, while in the recovery period after the more intensive second loading of the test it was not only less expressed but in a number of cases did not reach the initial values. It was assumed that the relationship between the expressed in each moment influences of the vagal and sympathetic neuroregulatory mechanisms of the heart was significant for the expression of the observed rhythmic fluctuations.</p>","PeriodicalId":11560,"journal":{"name":"Eksperimentalna meditsina i morfologiia","volume":"31 1-2","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19247190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[The sperm-agglutinating activity of the fractions of saline root extracts from Arum maculatum]. [海芋生理盐水根提取物组分的凝集精子活性]。
Eksperimentalna meditsina i morfologiia Pub Date : 1993-01-01
I Mladenov, I Bulanov, M Stamenova
{"title":"[The sperm-agglutinating activity of the fractions of saline root extracts from Arum maculatum].","authors":"I Mladenov,&nbsp;I Bulanov,&nbsp;M Stamenova","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Our previous investigations have demonstrated that saline extract of Arum maculatum contains lectin (sperm agglutinin) which agglutinates human ejaculated spermatozoa of the type tail to tail and head to tail. By means of speed liquid chromatography (Mono S XP 5/5) eight fractions (I-VIII) were obtained. The sperm-agglutinating activity of the fractions was investigated against frog testicular spermatozoa and testicular and epididymal spermatozoa of man, rabbit, rat and mouse. The fractions did not agglutinate frog spermatozoa. Fraction I agglutinated rabbit, rat and murine spermatozoa; fraction II-rabbit and rat spermatozoa; fraction VII-only human spermatozoa, and fraction VIII-human, as well as animal spermatozoa. The fractions III, IV, V, VI had no sperm-agglutinating activity. These data could be explained by the assumption that the differences in the sperm-agglutinating activity of the fractions are due to isoforms (called also isolectins) of the phytospermagglutinin, contained in the saline extract of Arum maculatum.</p>","PeriodicalId":11560,"journal":{"name":"Eksperimentalna meditsina i morfologiia","volume":"31 1-2","pages":"22-8"},"PeriodicalIF":0.0,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19247192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信