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11.
不同居属地半夏核苷类有效成分的比较研究 总被引:2,自引:0,他引:2
目的:对全国不同居群半夏进行初步的质量评价,为充分利用和开发半夏资源提供科学依据。方法:收集不同居群的半夏品种,以其有效成分(核苷类成分)含量为评价指标,进行品种质量评价,以遴选出优良半夏品种。总核苷类成分含量(以鸟苷计)采用高效液相色谱法(HPLC)测定。结果:不同居群半夏药材的总核苷类成分存在显著性差异,江苏泰半夏的核苷类成分含量显著高于其他居群。结论:我国半夏种质参差不齐,要培育出优质半夏,需要通过各种人工方法对品质优良的半夏进行品种选育。 相似文献
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Heath JA Frederick PC Edwards TM Guillette LJ 《General and comparative endocrinology》2003,133(1):118-131
We measured plasma concentrations of testosterone, estradiol, progesterone, and corticosterone; and recorded changes in gonad size, body condition, molt, and brood patch development of free-living adult White Ibises (Eudocimus albus) during the breeding season in the Florida Everglades. White Ibises are colonially breeding, long-legged wading birds that inhabit freshwater and estuarine wetlands. They have flexible breeding schedules (nest initiation dates can range from January to September) and onset of nesting is usually associated with increased prey availability caused by concentration of small fish in pools during periods of wetland drying. In this paper, we present the hormonal and physical characteristics of White Ibis reproductive physiology. We classified White Ibis breeding into five stages: pre-breeding, display, copulation/egg production, incubation, and chick rearing. White Ibises showed cyclic gonadal development which corresponded to reproductive stage. Male and female testosterone concentrations increased during the display stage and decreased during copulation, incubation, and chick rearing. Female estradiol concentrations were highest during display and chick rearing and male estradiol concentrations were lowest during copulation. Female progesterone concentrations increased during display and remained high throughout the breeding season. Female ibises had low corticosterone concentrations that increased during incubation and were highest during chick rearing, concomitant with lower body condition and flight muscle-mass scores. Male ibis progesterone and corticosterone concentrations did not show seasonal changes and were more variable than concentrations in female ibises at similar stages. Males and females had elevated body condition scores during the display stage, which were depleted by the onset of incubation. Increased energy stores during display may be used later for fasting in male birds that do not eat during the 10-day copulation/egg production stage, and for egg production in female birds. During incubation, male and female ibises developed brood patches. Ibises molted in all stages of reproduction, indicating that ibis molt and reproductive physiology may not inhibit each other as in most temperate bird species. White Ibises showed similar patterns in reproductive physiology to other monogamous, seasonally breeding bird species in which both sexes incubate and care for the young. 相似文献
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M. Tibbo K. Aragaw F. Abunna M. Woldemeskel A. Deressa M. Lemma Dechassa J. E. O. Rege 《Comparative clinical pathology》2005,13(3):119-127
Haematological parameters were studied in 377 apparently healthy sheep comprising three indigenous breeds of Ethiopia. The effect of breed, age, gender and season on the haematological values was assessed. There was significant (P<0.01) breed difference for all erythrocytic series. Red blood cells (RBCs) and packed cell volume (PCV) were significantly higher (P<0.01) in Menz than in Wello and Tukur breeds. However, haemoglobin (Hb) concentration was significantly lower (P<0.001) in Menz than in other breeds. Lymphocyte and eosinophil levels were significantly higher (P<0.001) in Menz than in Tukur and Wello breeds. Neutrophil and monocyte concentrations were significantly higher (P<0.001) in Wello and Tukur than in Menz sheep. Gender had no significant (P>0.05) effect on erythrocytic and leukocytic parameters. There was a decrease in lymphocytes with increasing age, whereas the reverse was true for neutrophils. RBCs and PCV were significantly higher (P<0.05) during the dry season than any other seasons. Total white blood cell (WBC) count was significantly higher (P<0.0001) during the long rainy season than during other seasons. The Hb, mean corpuscular haemoglobin (MCH) and mean corpuscular haemoglobin concentration (MCHC) of the indigenous breeds were higher than those of exotic sheep breeds. Our study is believed to aid clinical assessment and disease diagnosis in these breeds. 相似文献
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中药综合疗法治疗宫外孕的临床疗效观察与探讨 总被引:4,自引:0,他引:4
以活血祛瘀、消症杀胚为治则,汤药、成药内服,肌注丹参注射液,外敷及保留灌肠同步进行。治疗输卵管妊娠25例,24例经15~64天治疗而痊愈,仅1例中转手术治疗。 相似文献
16.
目的了解南昌市蚊虫孳生的水体以及蚊幼虫的消长趋势,为制订灭蚊方案提供理论依据。方法勺捕法和容器指数法。结果大中型水体阳性率63.16%,库蚊、按蚊、伊蚊3种蚊属均有发现,11种水体中,8种水体曾发现有蚊幼虫孳生,大中型水体生长高峰在6月,幼虫密度为2.88条/勺,5种大中型水体蚊幼虫密度最高的是菜园水沟,密度为2.36条/勺。容器的阳性率为36.06%,4种容器中库蚊、按蚊、伊蚊3种蚊属均有发现,容器中生长高峰以6月最高,密度指数为77.03%,4种容器的阳性率以轮胎最高为40.76%。结论蚊虫控制工作的重点是在每年的6月,容器、地面积水、污水是治理的重点。 相似文献
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HD组方对血透患者内皮素与降钙素基因相关肽影响的临床研究 总被引:1,自引:1,他引:0
目的:观察中药HD组方在血液透析中对血透患内皮素(ET)、降钙素基因相关肽(CGRP)的影响,探讨如何进一步提高尿毒症终末期维持性血透患的透析效率和生活质量。方法:选择终末期肾衰竭(ESRD)患66例,已作维持性血液透析(HD)治疗1年以上,随机分为常规治疗组32例,中药治疗组34例;另设正常对照组20例。常规治疗组:继续进行常规血液透析;中药治疗组:在常规治疗组透析的基础上,将常规透析液中加入中药HD组方。并定期观察各组患的收缩压(SBP)、舒张压(DBP)、内皮素(ET)、降钙素基因相关肽(CGRP),疗程均为6个月。结果:治疗6个月后,中药治疗组与治疗前及常规治疗组相比SBP、DBP、ET水平显降低(P<0.01),而CGRP水分显增高(P<0.05)。结论:HD组方的应用可通过改善血循环状态,调节患ET、CGRP代谢失衡状况,从而调节血管舒、缩功能,有利于降低血压。 相似文献
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