发布求助
文献互助 智能选刊 最新文献

Tropenmedizin und Parasitologie最新文献

筛选
英文 中文
Development of onchocerca lienalis and O. volvulus from the third to fourth larval stage in vitro. 脾盘尾丝虫病和扭转盘尾丝虫病3 ~ 4龄幼虫的体外发育。
Tropenmedizin und Parasitologie Pub Date : 1984-12-01
J B Lok, R J Pollack, E W Cupp, M J Bernardo, J J Donnelly, E J Albiez
{"title":"Development of onchocerca lienalis and O. volvulus from the third to fourth larval stage in vitro.","authors":"J B Lok,&nbsp;R J Pollack,&nbsp;E W Cupp,&nbsp;M J Bernardo,&nbsp;J J Donnelly,&nbsp;E J Albiez","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Third-stage larvae of Onchocerca volvulus and O. lienalis were observed to molt to the fourth stage in various cell-free in vitro systems. The percentage of O. lienalis completing the molt was similar in the three culture media and two gas phases tested ranging from 44.8% (1:1 IMDM:NCTC + 5% CO2: 95% N2) to 56.7% (L-15 + 5% CO2: 95% air). Percent molting in O. volvulus ranged from 0% (F12(K) + 5% CO2: 95% N2) to 33.3% (L-15 + 5% CO2: 95% N2). All media were supplemented with either 20% FCS or 20% horse serum. Molting by O. lienalis occurred on days 2-5 in culture. Molting by O. volvulus was observed as early as day 5 and as late as day 10. Incomplete casting of the third-stage cuticle was frequently observed in O. volvulus. Larvae of both species entered a lethargus 24-48 hours prior to the onset of molting. Maximum survival in culture was 42 days for O. lienalis and 25 days for O. volvulus. Significant growth of larval O. lienalis was noted early in the culture period, but neither species continued development to the fifth stage.</p>","PeriodicalId":76764,"journal":{"name":"Tropenmedizin und Parasitologie","volume":"35 4","pages":"209-11"},"PeriodicalIF":0.0,"publicationDate":"1984-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17579585","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
Characterization of the inflammatory cells in progressing tumor-like alveolar hydatid cyst. 2. Cell surface receptors, endocytosed immune complexes and lysosomal enzyme content. 进展性肿瘤样肺泡包虫囊肿中炎性细胞的特征。2. 细胞表面受体，内吞免疫复合物和溶酶体酶含量。
Tropenmedizin und Parasitologie Pub Date : 1984-12-01
S Treves, Z Ali-Khan
{"title":"Characterization of the inflammatory cells in progressing tumor-like alveolar hydatid cyst. 2. Cell surface receptors, endocytosed immune complexes and lysosomal enzyme content.","authors":"S Treves,&nbsp;Z Ali-Khan","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Alveolar hydatid cysts (LCM) grow progressively and contribute significantly to the morbidity of hydatid-hosts. To examine whether modifications in immune effector parameters correlate with the pattern of LCM growth, in vivo experiments were carried out in C57BL/6J mice infected intraperitoneally with LCM. Immigrant peritoneal and intra-LCM leukocytes were tested for the loss of cell surface receptors, membrane-bound and internalized immune complexes (ICs) and lysosomal enzyme contents during the restrictive and progressive growth phases of the LCM. The proportion of Fc and C3b receptor-bearing intra-LCM leukocytes decreased 2-fold and 31 to 72% of the leukocytes contained ICs during the progressive phase of the LCM. Acid phosphatase and beta-glucuronidase activities of macrophages declined sharply during the restrictive phase but they gradually increased as the infection progressed. IC-mediated dysfunction of effector leukocytes and modulation of antibody dependent cell cystolysis mechanism are discussed in murine hydatidosis.</p>","PeriodicalId":76764,"journal":{"name":"Tropenmedizin und Parasitologie","volume":"35 4","pages":"231-6"},"PeriodicalIF":0.0,"publicationDate":"1984-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17305018","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
Effect of diethylcarbamazine on serum-dependent cell-mediated immune reactions to microfilariae in vitro. 二乙基卡马嗪对体外微丝虫病血清依赖细胞免疫反应的影响。
Tropenmedizin und Parasitologie Pub Date : 1984-09-01
R Chandrashekar, U R Rao, D Subrahmanyam
{"title":"Effect of diethylcarbamazine on serum-dependent cell-mediated immune reactions to microfilariae in vitro.","authors":"R Chandrashekar,&nbsp;U R Rao,&nbsp;D Subrahmanyam","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The effect of diethylcarbamazine citrate (DEC) on serum-dependent cellular adherence and cytotoxicity to sheathed and exsheathed microfilariae of Litomosoides carinii and Brugia pahangi in vitro has been investigated. DEC at 5 micrograms/ml promoted antibody-mediated neutrophil adherence and cytotoxicity with sheathed L. carinii microfilariae. With exsheathed parasites, the drug promoted significantly complement-and antibody-mediated cellular adherence and cytotoxicity. In the case of B. pahangi, antibody-dependent cell-mediated cytotoxicity (ADCC) of neutrophils to sheathed and exsheathed microfilariae were similarly stimulated by DEC. Pre-incubation of microfilariae with DEC promoted the cellular adherence and cytotoxicity whereas pre-incubation of cells had no such effect. DEC stimulated the adherence of eosinophils to both sheathed and exsheathed microfilariae of the two species but the adherence resulted in cytotoxic effect only on the L. carinii microfilariae. DEC at higher concentrations (100 or 500 micrograms/ml) inhibits these processes. Data on the role of different serum factors involved in this phenomenon have been presented and discussed.</p>","PeriodicalId":76764,"journal":{"name":"Tropenmedizin und Parasitologie","volume":"35 3","pages":"177-82"},"PeriodicalIF":0.0,"publicationDate":"1984-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17551764","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
Studies on nodules and adult Onchocerca volvulus during a nodulectomy trial in hyperendemic villages in Liberia and Upper Volta. II. Comparison of the macrofilaria population in adult nodule carriers. 在利比里亚和上沃尔特高流行村庄的结节切除术试验中对结节和成年盘尾丝虫病的研究。2成年结核携带者大丝虫种群的比较。
Tropenmedizin und Parasitologie Pub Date : 1984-09-01
E J Albiez, D W Büttner, H Schulz-Key
{"title":"Studies on nodules and adult Onchocerca volvulus during a nodulectomy trial in hyperendemic villages in Liberia and Upper Volta. II. Comparison of the macrofilaria population in adult nodule carriers.","authors":"E J Albiez,&nbsp;D W Büttner,&nbsp;H Schulz-Key","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>In the Liberian rain-forest and the savanna of Upper Volta 189 adult nodule carriers were operated on. From 2231 extirpated nodules 3327 male and 5713 female macrofilariae were isolated. About 98% of the male worms and 88% of the female worms were found alive. The sex ratio of the live male and female worms was 1:1.5 in Liberia and 1:1.6 in Upper Volta. Less than 1% of all live macrofilariae were immature in both countries. 22% of the live male worms in Liberia were regarded as old. The percentage of old male and female worms in Upper Volta and that of the old female worms in Liberia were similar (5-7%). The portion of old worms was independent of the age of the patients in Liberia. Dead worms were found in 66% of the Liberians and in 85% of the Voltaics. The percentage of patients with dead worms increased with the age. About 0.5% of all male and 8% of all female worms were calcified. In Liberia the percentage of calcified worms increased with the age of the patients. In both countries the highest number of live and dead worms were found on the pelvic girdle. On the thorax many more macrofilariae were found in Upper Volta than in Liberia. This may contribute to the severe eye lesions in this savanna area. The presented findings provide some basic information for the planning and performance of trials with macrofilaricidal drugs in hyperendemic areas of West Africa. However, the striking differences between individual worm burdens have to be considered.</p>","PeriodicalId":76764,"journal":{"name":"Tropenmedizin und Parasitologie","volume":"35 3","pages":"163-6"},"PeriodicalIF":0.0,"publicationDate":"1984-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17598656","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
Haemagglutinins and parasite agglutinins in haemolymph and gut of Glossina. 舌蝇血淋巴和肠道中的血凝素和寄生虫血凝素。
Tropenmedizin und Parasitologie Pub Date : 1984-09-01
E A Ibrahim, G A Ingram, D H Molyneux
{"title":"Haemagglutinins and parasite agglutinins in haemolymph and gut of Glossina.","authors":"E A Ibrahim,&nbsp;G A Ingram,&nbsp;D H Molyneux","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Agglutinating activity was found in the haemolymph and in extracts of midgut and hindgut of Glossina austeni against calf, guinea pig and chicken erythrocytes for the first time. Trypanosoma brucei procyclic forms were also agglutinated by midgut and hindgut extracts, but not by haemolymph. The 3 fractions tested failed to react with erythrocytes of four other vertebrates and other trypanosomatids (Leishmania hertigi and Crithidia fasciculata) examined. The reciprocal titre of agglutinating activity of the 3 fractions against calf, guinea pig and chicken erythrocytes were approximately the same at a dilution of 64. Both midgut and hindgut agglutinins showed higher titres against T. brucei at reciprocal dilutions of 128 and 256 respectively. Sialidase treatment, reduced the agglutinating activity to half its normal range while trypsinisation had no effect. The results of attempts to inhibit the agglutinating activity using a variety of sugars and glycoproteins revealed that midgut and hindgut were specific for D+glucosamine suggesting that midgut and hindgut agglutinin were possibly of the same origin. This is the first report of haemagglutinating and parasite agglutinating activity in Glossina tissues which may play a role not only in insect defence reactions but also in the determination of parasite establishment and infection in vectors.</p>","PeriodicalId":76764,"journal":{"name":"Tropenmedizin und Parasitologie","volume":"35 3","pages":"151-6"},"PeriodicalIF":0.0,"publicationDate":"1984-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17551762","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
Protein kinases in different life stages of Brugia malayi and other filarial worms. 马来布鲁氏线虫和其他丝虫不同生命阶段的蛋白激酶。
Tropenmedizin und Parasitologie Pub Date : 1984-09-01
J K Saxena, A K Srivastava, P Kalpana Murti, R K Chatterjee, S Ghatak, R D Walter
{"title":"Protein kinases in different life stages of Brugia malayi and other filarial worms.","authors":"J K Saxena,&nbsp;A K Srivastava,&nbsp;P Kalpana Murti,&nbsp;R K Chatterjee,&nbsp;S Ghatak,&nbsp;R D Walter","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The investigation of protein kinase activity in different life stages of a few filarial worms indicates the presence of different protein kinases and of dissimilarities between the distribution pattern of these enzymes during the development. Phosvitin turned out to be the preferred exogenous acceptor protein, when homogenates of adults of Brugia malayi, Dipetalonema viteae, Setaria cervi and Litomosoides carinii were used as source of enzyme. In contrast to adults the L3-larval and the microfilarial stages demonstrated much lower phosvitin phosphorylating activity and the preference for acidic and basic proteins as phosphate acceptors was about equal. The occurrence of cyclic AMP-dependent protein kinase was established for adults of B. malayi.</p>","PeriodicalId":76764,"journal":{"name":"Tropenmedizin und Parasitologie","volume":"35 3","pages":"174-6"},"PeriodicalIF":0.0,"publicationDate":"1984-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17598657","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
Are flaviviruses again active in Mali? 黄病毒在马里再次活跃吗?
Tropenmedizin und Parasitologie Pub Date : 1984-09-01
W Ehrengut, D E Sarateanu
{"title":"Are flaviviruses again active in Mali?","authors":"W Ehrengut,&nbsp;D E Sarateanu","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Using a hemagglutinating yellow fever antigen, a serologic investigation was done on 1237 blood samples collected between 1979 and 1983 in five regions of Mali. The results showed that the percentage of positive reactions (greater than 1:10) was higher in the sera of mothers than in their new borns (24.8 versus 12.4). In young children (6 months to 3 years old) the percentages of positive sera varied between 4.4 and 9.6. The values were much higher for persons between 15 to 70 years (28.3% to 43.7%). The presence of high antibody titers in sera of adults, the occurrence of seroconversion in young children (less than 1:10 to 1:40) are arguments for supposing that yellow fever virus or other flaviviruses were active in Mali in the period of our investigation.</p>","PeriodicalId":76764,"journal":{"name":"Tropenmedizin und Parasitologie","volume":"35 3","pages":"196-8"},"PeriodicalIF":0.0,"publicationDate":"1984-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17554230","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
Differentiation between Trypanosoma cruzi and Trypanosoma rangeli on the basis of their sialic acid content. 克氏锥虫与兰氏锥虫唾液酸含量的鉴别。
Tropenmedizin und Parasitologie Pub Date : 1984-09-01
J Schottelius
{"title":"Differentiation between Trypanosoma cruzi and Trypanosoma rangeli on the basis of their sialic acid content.","authors":"J Schottelius","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Four day-old culture forms of Trypanosoma rangeli strain San Augustin were tested with the following lectins: Canavalia ensiformis, Pisum sativum, Ricinus communis-120, Sojahispida, Aaptos papillata II, Triticum vulgaris, Limulus polyphemus, lberis amara and Arachis hypogaea. These flagellates were only agglutinated by the lectins from Canavalia ensiformis and Pisum sativum. Furthermore four day-old culture forms of the T. cruzi strains Morcego 1354, P-60, Téhuantépéc and WA 301/130 as well as the T. rangli strains San Augustin, Venezuela and DA-3412 were treated with neuraminidase and the supernatant examined by the Aminoff TBA assay. While the supernatant of the T. cruzi strains showed a red colour complex the supernatant of the T. rangeli strains was weak yellow-green. In contrast to the T. cruzi strains no N-acetylneuraminic acid was detectable on the cell surface of T. rangeli. Therefore the Aminoff test can be used for the differentiation between T. cruzi and T. rangeli.</p>","PeriodicalId":76764,"journal":{"name":"Tropenmedizin und Parasitologie","volume":"35 3","pages":"160-2"},"PeriodicalIF":0.0,"publicationDate":"1984-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17448813","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
[Contact between Glossina palpalis palpalis (Rob.-Desv., 1830) and G. palpalis gambiensis Vanderplank, 1949 (Diptera) in the Bouaké area (Ivory Coast)]. [b] [d] [b]。G. palpalis gambiensis Vanderplank, 1949(双翅目)在bouak<e:1>地区(科特迪瓦)发现]。
Tropenmedizin und Parasitologie Pub Date : 1984-09-01
J P Gouteux, P Millet
{"title":"[Contact between Glossina palpalis palpalis (Rob.-Desv., 1830) and G. palpalis gambiensis Vanderplank, 1949 (Diptera) in the Bouaké area (Ivory Coast)].","authors":"J P Gouteux,&nbsp;P Millet","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The boundary between the distributions of the tsetse sub-species G. palpalis palpalis and G. p. gambiensis lies 60 km north of Bouaké, Ivory Coast. At this place, there is a very narrow hybridization belt. 10 males were caught and compared with hybrids of laboratory origin. The possibility of a postcopulatory sub-specific barrier is discussed.</p>","PeriodicalId":76764,"journal":{"name":"Tropenmedizin und Parasitologie","volume":"35 3","pages":"157-9"},"PeriodicalIF":0.0,"publicationDate":"1984-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17160570","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
Characterization of the inflammatory cells in progressing tumor-like alveolar hydatid cysts: 1. Kinetics and composition of inflammatory infiltrates. 进展性肿瘤样肺泡包虫病中炎性细胞的特征:炎症浸润的动力学和组成。
Tropenmedizin und Parasitologie Pub Date : 1984-09-01
S Treves, Z Ali-Khan
{"title":"Characterization of the inflammatory cells in progressing tumor-like alveolar hydatid cysts: 1. Kinetics and composition of inflammatory infiltrates.","authors":"S Treves,&nbsp;Z Ali-Khan","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The kinetics and composition of leukocytic infiltrates from the biphasically growing parasite biomass and the peritonea of C57BL/6J mice infected intraperitoneally with Echinococcus multilocularis cysts were studied. During the first 6 to 8 weeks postinfection (p.i.) the larval cyst masses (LCM) grew slowly, weighted 1 g and contained 3 to 4 X 10(6) leukocytes/100 mg of LCM. Subsequently, (8 to 16 weeks p.i.) the growth of the LCM was rapid and was accompanied by 3 to 4-fold reduction in the absolute leukocyte count; monocytoid cells, neutrophils, eosinophils and T-lymphocyte significantly decreased during the progressive growth phase of the LCM. The cumulative data show a strong inverse relationship between the mean LCM weights and the absolute or relative counts of intra-LCM leukocytes. The data suggest that high concentrations of intra-LCM leukocytes, especially monocytoid cells and to a lesser degree eosinophils, regulate the growth of the LCM in C57BL/6J mice.</p>","PeriodicalId":76764,"journal":{"name":"Tropenmedizin und Parasitologie","volume":"35 3","pages":"183-8"},"PeriodicalIF":0.0,"publicationDate":"1984-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17394508","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