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排序方式: 共有314条查询结果,搜索用时 15 毫秒
81.
Myxovirus-like structures in a case of human chronic polymyositis 总被引:11,自引:0,他引:11
S M Chou 《Science (New York, N.Y.)》1967,158(807):1453-1455
Intranuclear and intracytoplasmic aggregates of filaments with tubular structures and transverse striations occurred in muscle tissues biopsied from a patient with chronic polymyositis. The filamentous tubules bear a close resemblance to the incomplete form of myxovirus in which the envelope is missing. Three biopsies from the same patient, taken during a period of 1(1/2) years, all revealed these structures. This finding provides presumptive evidence that a chronic persistent viral infection may be involved in the pathogenesis of chronic polymyositis. 相似文献
82.
本文记述了蛾蜡蝉科Flatidae国内一新记录属和一新种,模式标本保存在西北农业大学昆虫博物馆 相似文献
83.
Germline organization of the murine T cell receptor beta-chain genes 总被引:11,自引:0,他引:11
H S Chou C A Nelson S A Godambe D D Chaplin D Y Loh 《Science (New York, N.Y.)》1987,238(4826):545-548
84.
Brain serotonin concentration: elevation following intraperitoneal administration of melatonin 总被引:5,自引:0,他引:5
The intraperitoneal administration of melatonin to rats caused an increase in brain serotonin concentration, especially in the midbrain. This effect could be demonstrated within 20 minutes of melatonin administration and was not associated with changes in norepinephrine concentration. 相似文献
85.
对在宁夏彭阳县引进的花椒品种大红袍、秦安1号、豆椒和油椒的生物学特性、成活率、生长量、抗逆性与结果情况的分析比较,结果表明,秦安1号与大红袍2个品种的综合指标优于其他品种,在彭阳县的适应性较好,在宁夏南部山区其他条件类似的地方也可以大力发展.而豆椒和油椒适于在庭院等栽种. 相似文献
86.
A whole-genome assembly of Drosophila 总被引:1,自引:0,他引:1
Myers EW Sutton GG Delcher AL Dew IM Fasulo DP Flanigan MJ Kravitz SA Mobarry CM Reinert KH Remington KA Anson EL Bolanos RA Chou HH Jordan CM Halpern AL Lonardi S Beasley EM Brandon RC Chen L Dunn PJ Lai Z Liang Y Nusskern DR Zhan M Zhang Q Zheng X Rubin GM Adams MD Venter JC 《Science (New York, N.Y.)》2000,287(5461):2196-2204
We report on the quality of a whole-genome assembly of Drosophila melanogaster and the nature of the computer algorithms that accomplished it. Three independent external data sources essentially agree with and support the assembly's sequence and ordering of contigs across the euchromatic portion of the genome. In addition, there are isolated contigs that we believe represent nonrepetitive pockets within the heterochromatin of the centromeres. Comparison with a previously sequenced 2.9- megabase region indicates that sequencing accuracy within nonrepetitive segments is greater than 99. 99% without manual curation. As such, this initial reconstruction of the Drosophila sequence should be of substantial value to the scientific community. 相似文献
87.
88.
Summary Using Martin's fluorescence technique the sieve tubes of the styles in theBrassiceae sometimes look confusingly like pollen tubes, but the two can be distinguished by relatively easy observational criteria. 相似文献
89.
Tirawat Rairat Yu-Shin Kuo Chao-Chia Chang Chia-Yu Hsieh Chi-Chung Chou 《Journal of veterinary pharmacology and therapeutics》2020,43(6):520-526
Drug administration by immersion can be a preferable method in certain conditions especially for treating small-sized, anorexic, or valuable fish. Pharmacokinetic information regarding bath treatment is considerably lacking in comparison to other common administration routes. The current study aimed to investigate if immersion can be an effective route to administer florfenicol (FF) for treatment in Nile tilapia. Nile tilapia reared at 28°C were immersed with FF solution at concentrations of 50, 100, 200, 500, and 500/200 (3 hr/117 hr) ppm for 120 hr and moved to drug-free freshwater for another 24 hr. The serum FF concentration in 100, 200, and 500/200 ppm groups reached steady-state at 12 hr with concentrations of 2.44, 3.04, and 5.26 µg/ml, respectively, which were about 2% of the bathing concentrations. The target therapeutic levels of 1–4 µg/ml were attained and maintained within 1–12 hr, depending on the immersion concentration and the target MIC. Serum FF reached the target with shorter time at higher bathing concentration. Following the 120-hr bath, the serum FF declined with the first-order half-life of approximately 10 hr. A minimum of 100 ppm FF is required for treatment purpose, and an initial high loading concentration followed by maintenance concentration is a plausible way to reach in vivo therapeutic level in short time. Greater than 99% of the residual FF in the bathing water could be removed within 15 min by 0.05% NaOCl. Our results indicated that bath immersion is a promising potential route for FF administration in Nile tilapia. 相似文献
90.
Meat tenderness is considered as the most important criterion for meat quality by consumers and can be improved by the actions of endogenous proteases, mainly calpains, during postmortem storage at 0–5°C. The purpose of this study, therefore, was to examine the postmortem calpain activation and proteolysis in breast (BM) and leg and thigh (LM) muscles of White Roman goose. BM and LM were taken from goose carcasses (n = 15) at 0 (10–15 min postmortem), 1, 3, and 7 days of storage at 5°C. The decrease in postmortem pH, calpain‐1 and ‐11 activities, and contents of the calpain‐1 80 kDa subunit and desmin was more rapid (p < .05) in BM than in LM. Our results show that postmortem proteolysis was more extensive in BM than in LM of White Roman goose, not only because the difference in fiber type composition between two muscles, but because the rate and extent of calpain activation were greater in BM as well. These results may provide useful information to optimize meat processing for different muscles in goose industry. 相似文献