Proceedings of the National Science Council, Republic of China. Part B, Life sciences最新文献_第8页

Identification of a measles virus isolate from a recent outbreak in northern Taiwan. 台湾北部最近爆发的麻疹病毒分离物的鉴定。

Proceedings of the National Science Council, Republic of China. Part B, Life sciences Pub Date : 1997-07-01

M M Kuan, G R Wang

引用次数: 0

Hormonal changes associated with menstrual cycle have no definite influence on ocular pressure. 与月经周期相关的激素变化对眼压没有明确的影响。

Proceedings of the National Science Council, Republic of China. Part B, Life sciences Pub Date : 1997-04-01

I A Qureshi, Y B Huang, X R Xi, X D Wu

{"title":"Hormonal changes associated with menstrual cycle have no definite influence on ocular pressure.","authors":"I A Qureshi, Y B Huang, X R Xi, X D Wu","doi":"","DOIUrl":"","url":null,"abstract":"Background: Despite some findings to the contrary, it would appear that pharmacological doses of progesterone and estrogen (alone or in combination) can influence intraocular pressure (IOP). The relationship between hormonal changes associated with the menstrual cycle and intraocular pressure is not clearly understood. After elimination of those factors that can affect IOP, the present study investigated whether physiological hormonal changes associated with the menstrual cycle have a correlation with intraocular pressure.Methods: Intraocular pressure and the concentrations of circulating hormones, namely, the luteinizing hormone (LH), follicle-stimulating hormone (FSH), estrone (E1), estradiol (E2), progesterone, and testosterone, of twenty married women of the same age groups were recorded daily throughout a menstrual cycle. None was taking any contraceptives in any form. The intraocular pressure was measured using a Goldmann applanation tonometer.Results: The intraocular pressure values fluctuated in each of the twenty subjects at various times of the cycle; however, they were not definitely correlated with the different phases of the cycle. This study failed to find any correlation between IOP and progesterone or estradiol levels.","PeriodicalId":20569,"journal":{"name":"Proceedings of the National Science Council, Republic of China. Part B, Life sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1997-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20218641","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

Application of dipole modeling in localization of mesio-temporal epileptogenic focus. 偶极子模型在中颞叶致痫灶定位中的应用。

Proceedings of the National Science Council, Republic of China. Part B, Life sciences Pub Date : 1997-04-01

J J Chen, J J Tsai, C H Sheu, H Y Lin, J G Yeh

引用次数: 0

Production of chitinase from shellfish waste by Pseudomonas aeruginosa K-187. 铜绿假单胞菌K-187从贝类废弃物中生产几丁质酶的研究。

Proceedings of the National Science Council, Republic of China. Part B, Life sciences Pub Date : 1997-04-01

S L Wang, S H Chiou, W T Chang

引用次数: 0

The role of nitrogenase in a cyanide-degrading Klebsiella oxytoca strain. 氮酶在氧化克雷伯菌中降解氰化物的作用。

Proceedings of the National Science Council, Republic of China. Part B, Life sciences Pub Date : 1997-04-01

J K Liu, C H Liu, C S Lin

{"title":"The role of nitrogenase in a cyanide-degrading Klebsiella oxytoca strain.","authors":"J K Liu, C H Liu, C S Lin","doi":"","DOIUrl":"","url":null,"abstract":"It is well known that the major function of nitrogenase is to fix atmospheric nitrogen. However, cyanide can also serve as a subtrate for nitrogenase and can be reduced to CH4 and NH4+. A cyanide-degrading Klebsiella oxytoca strain was isolated from cyanide contaminated water. This isolate was also found to have a nitrogen-fixation capability. Nitrogenase activities in this organism could be induced by KCN. However, there was no significant difference of the induction effect between 1 mM KCN and 5 mM KCN. It was found that the cyanide-degrading ability of this isolate could be inhibited by multicopy hybrid pGR112 nif-containing plasmids. Comparing the wild type K. oxytoca strain with the pGR112 plasmid transformed strain, a typical diauxic growth of the wild type strain was observed in a medium containing NH4Cl and KCN. Although the nif plasmid transformed strain also exhibited diauxic growth in the same medium, a much longer second lag phase was noted. In addition, methane, the nitrogenase reduction end product of cyanide, could be detected on cyanide-containing growth cultures. Ammonium chloride, a repressor of nitrogenase gene expression, was consumed prior to KCN in both strains. Again, the degradation of KCN in the pGR112 transformed strain occurred only under loose control of the nitrogenase gene. These findings strongly suggest that nitrogenase may be the sole cyanide-degrading enzyme in this organism.","PeriodicalId":20569,"journal":{"name":"Proceedings of the National Science Council, Republic of China. Part B, Life sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1997-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20219423","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

Identification of classic and complex t(15;17) and/or RAR alpha/PML gene fusion in APL by cytogenetic and dual color-FISH techniques. 应用细胞遗传学和双色fish技术鉴定APL中经典和复杂t(15;17)和/或RAR α /PML基因融合。

Proceedings of the National Science Council, Republic of China. Part B, Life sciences Pub Date : 1997-04-01

H Acar, M Dündar, J Stewart

引用次数: 0

Silver-binding nucleolar organizer regions in hepatolithiasis and bile duct cancer. 肝结石和胆管癌中银结合核仁组织区。

Proceedings of the National Science Council, Republic of China. Part B, Life sciences Pub Date : 1997-04-01

C G Ker

{"title":"Silver-binding nucleolar organizer regions in hepatolithiasis and bile duct cancer.","authors":"C G Ker","doi":"","DOIUrl":"","url":null,"abstract":"Hepatolithiasis and bile duct cancer have usually been linked together especially in Asian countries. Epithelium cells of bile duct or ductal glands had proliferative changes in patients with hepatolithiasis usually. The numbers and shape of the nucleoli were studied with special staining of AgNOR (Nucleolar Organizer Regions) on bile ducts without calculi (n = 11), with calculi (n = 21), and hepatolithiasis with bile duct carcinoma (n = 14). The patterns of AgNOR were classified into a dotted type and a cluster type under light microscopic examination. AgNORs scores were found to be 2.7 +/- 1.2 (M +/- SD) and 3.6 +/- 1.2 for intramural glandular cells and extramural glandular cells in hepatolithiasis (p < 0.05). In the cases of bile duct carcinoma, the percentage of the cluster form of AgNOR was 28.1 +/- 4.4%, and the scores were 4.7 +/- 2.4 for bile duct cancer, which was significantly different from intramural glands, but not different from the extramural glands in hepatolithiasis. High scores of the dotted type and high percentage of cluster type have high potentiality of malignant changes. From this study, unknown substances for malignant transformation might be secreted from the inner epithelium and or intramural glandular epithelium both of which are usually in contact with the infected bile and have chronic irritation from the stones. Extramural glands of the bile duct had higher potential for proliferation or malignant transformation in our study. Hence, long-term follow-up study of those patients with hepatolithiasis should be done very carefully especially due to the possibility of a combination of neoplastic changes in hepatolithiasis.","PeriodicalId":20569,"journal":{"name":"Proceedings of the National Science Council, Republic of China. Part B, Life sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1997-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20219424","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 relationship between spermatozoa and epithelium of the female genital tract during sperm storage in the greater yellow bats (Scotophilus heathi): the light and electronmicroscopic observations. 大黄蝠(Scotophilus heathi)精子储存过程中精子与雌性生殖道上皮的关系:光镜和电镜观察。

Proceedings of the National Science Council, Republic of China. Part B, Life sciences Pub Date : 1997-01-01

A Krishna

引用次数: 0

Weight bearing influence on knee joint bony contact movements: an in vivo video-fluoroscopy study. 负重对膝关节骨接触运动的影响:一项体内视频透视研究。

Proceedings of the National Science Council, Republic of China. Part B, Life sciences Pub Date : 1997-01-01

C K Cheng, N K Yao, H C Liu

{"title":"Weight bearing influence on knee joint bony contact movements: an in vivo video-fluoroscopy study.","authors":"C K Cheng, N K Yao, H C Liu","doi":"","DOIUrl":"","url":null,"abstract":"In order to understand the effects of body weight-bearing on knee joint bony contact movements, a video-fluoroscopic digitizing system with in vivo human knee extension-flexion motions of 12 healthy adults under body weight-bearing and non-weight-bearing conditions was studied. These 12 subjects were equally separated into two groups consisting of a body weight-bearing group and a non-weight-bearing group. Video-fluoroscopic images were digitized to get three parameters from the knee joint bony geometry. These three parameters were the radius of rotation, the are length of rotation, and the contact point of the tibiofemoral joint, and they were used to decide the knee joint bony contact status of the sliding, spinning and rocking motions. The results showed that the knee bony contact movements under body weight-bearing conditions had about 4 times the incidence rate of the sliding motion under non-weight-bearing conditions. The incidence rate of the sliding motion was greatest when the knee flexion was less than 30 degrees. The knee bony contact movements under non-weight-bearing conditions had a larger spinning motion incidence rate and smaller rocking motion incidence rate than they did under weight-bearing conditions. The larger spinning motion incidence rate when the knee joint flexion was greater than 60 degrees. In conclusion, the body weight-bearing factor should be considered in studying knee joint bony contact movements.","PeriodicalId":20569,"journal":{"name":"Proceedings of the National Science Council, Republic of China. Part B, Life sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1997-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20153486","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 polymorphic mononuclear cell in porcine Actinobacillus pleuropneumonia. 猪胸膜肺炎放线菌多态单核细胞的研究。

Proceedings of the National Science Council, Republic of China. Part B, Life sciences Pub Date : 1997-01-01

S D Chen

{"title":"Characterization of polymorphic mononuclear cell in porcine Actinobacillus pleuropneumonia.","authors":"S D Chen","doi":"","DOIUrl":"","url":null,"abstract":"The polymorphic mononuclear cells, arranged in whorling or palisading pattern, were usually found in the lung of Actinobacillus pleuropneumoniae-infected pigs. In order to understand the origin and characteristics of these cells, specific-pathogen free pigs were intratracheally inoculated with Actinobacillus pleuropneumoniae at a concentration of 5 x 10(6) CFU, then, sacrificed at 6, 12, 24 and 48 hours later. The cells in the alveolar spaces were observed with light and electron microscope, and cytochemically analyzed for acid phosphatase, alkaline phosphatase, alpha-naphthyl acetate esterase, and Sudan black B stains respectively. The results revealed that a lot of neutrophils were observed in the alveolar spaces at the early stage after inoculation. Twenty four hours later, polymorphic mononuclear cells abundantly appeared. Enzyme cytochemical findings indicated that some of the polymorphic mononuclear cells were macrophages, in which, acid phosphatase and alpha-naphthyl acetate esterase were detected, and others were type II pneumocytes which were positively stained with alkaline phosphatase and Sudan black B. Ultrastructural observation found that many lysosomes appeared in the macrophages' cytoplasm, and type II pneumocyte contained many lamellar bodies. Conclusively, it could be suggested that the polymorphic mononuclear cells were derived from macrophages and type II pneumocytes by cytochemical and electron microscopic examinations.","PeriodicalId":20569,"journal":{"name":"Proceedings of the National Science Council, Republic of China. Part B, Life sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1997-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20153543","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