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Female Reproductive Cycles of Phrynocephalus przewalskii (Lacertilia:Agamidae) in the Tengger Desert,China 被引量:3
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作者 Wei ZHAO nannan yu +2 位作者 Yajuan WANG Weihong JI Naifa LIU 《Asian Herpetological Research》 SCIE 2011年第1期30-35,共6页
The timing of reproduction can significantly affect an offspring's fitness, thereby also influencing the fitness of the parents, especially in species inhabiting extreme environments, such as deserts. Female reproduc... The timing of reproduction can significantly affect an offspring's fitness, thereby also influencing the fitness of the parents, especially in species inhabiting extreme environments, such as deserts. Female reproductive cycles in Phrynocephalus przewalskii were studied from April to September 2008. Significant cycles of gonadal volume were found in all studied populations and the cycles were similar among the various populations. Females began vitellogenesis in April and contained oviductal eggs form May to June. Gonad volume decreased significantly in July and reached minimum volume from August to September. The follicular growth was negatively correlated with increasing precipitation and temperature in all populations. Hatching occurs during summer and early fall, when most of the annual rainfall occurs. Mean clutch size based on all populations was 2.7 ± 0.9 SE (n = 71). 展开更多
关键词 Phrynocephalus przewalskii LIZARD gonad cycle liver cycle clutch size Tengger Desert
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Geographic Variation in Clutch and Egg Size for the Lizard Phrynocephalus przewalskii(Squamata:Agamidae) 被引量:2
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作者 Yajuan WANG Weihong JI +2 位作者 Wei ZHAO nannan yu Naifa LIU 《Asian Herpetological Research》 SCIE 2011年第2期97-102,共6页
In order to tease apart proximate vs. ultimate sources of variation in reproductive strategy, studies have increasingly focused on populations rather than species as the unit of interest. The reproductive parameters o... In order to tease apart proximate vs. ultimate sources of variation in reproductive strategy, studies have increasingly focused on populations rather than species as the unit of interest. The reproductive parameters of Phrynocephalus przewalskii (Agamidae) in different populations within the same phylogenetic clade were compared in this study. Female SVL, clutch size, egg volume and clutch volume varied significantly among populations. With increase in latitude, clutch size increased, while egg size decreased. Relatively fewer but larger eggs were produced with increasing of population density. Food availability had positive effects on clutch size, but no effect on egg size. Our result indicated that latitude, food availability and population density may be the proximate factors affecting the reproductive parameters ofP. przewalskii. 展开更多
关键词 Phrynocephalus przewalskii reproductive parameter geographic variation egg size clutch size
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Professor Renting Li's Combination of Internal and External Treatment of Traditional Chinese Medicine in Treating Radiation Enteritis
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作者 nannan yu Renting Li 《Proceedings of Anticancer Research》 2021年第6期24-26,共3页
Radiotherapy is a common treatment for abdominal and pelvic malignancies with bone metastases.However,some patients develop radiation enteritis(RE)during the treatment or 2 months or more after the treatment,which ser... Radiotherapy is a common treatment for abdominal and pelvic malignancies with bone metastases.However,some patients develop radiation enteritis(RE)during the treatment or 2 months or more after the treatment,which seriously affects their quality of life.At present,the curative effect of western medicine is poor.Professor Renting Li believes that radiation kills tumor cells but at the same time,it damages the healthy Qi of the human body.Radiation causes heat and poison to accumulate in the intestinal tract,consumes and hurts Yin fluid,bums the vein,leads to deficiency of healthy Qi and poor detoxification,as well as cause blood stasis after a period of time.All these result in the combination of heat,blood stasis,and poison,manifesting as abdominal pain,diarrhea,mucus in stools,purulent and bloody stools,etc.Therefore,Professor Renting Li proposed the use of traditional Chinese medicine retention enema combined with oral traditional Chinese medicine to reduce symptoms,remove toxins,and improve the quality of life of patients. 展开更多
关键词 Radiation enteritis Traditional Chinese medicine Internal and external treatment of traditional Chinese medicine
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激素敏感型原发性肾病综合征患儿激素治疗巩固维持阶段不同减量方案比较 被引量:1
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作者 曾舒涵 庾楠楠 +4 位作者 应道静 陈丽植 容丽萍 莫樱 蒋小云 《中华妇幼临床医学杂志(电子版)》 CAS 2022年第4期468-475,共8页
目的探讨激素敏感型原发性肾病综合征(PNS)患儿激素治疗巩固维持阶段不同减量方案对疾病复发率的影响。方法选择2017年6月至2020年6月,在中山大学附属第一医院确诊的41例初治PNS患儿为研究对象,均对激素治疗敏感。根据激素治疗巩固维持... 目的探讨激素敏感型原发性肾病综合征(PNS)患儿激素治疗巩固维持阶段不同减量方案对疾病复发率的影响。方法选择2017年6月至2020年6月,在中山大学附属第一医院确诊的41例初治PNS患儿为研究对象,均对激素治疗敏感。根据激素治疗巩固维持阶段采用的不同减量方案,将其分为每日顿服组(n=22)和隔日顿服组(n=19)。本研究41例激素敏感型PNS患儿中,男性患儿为29例,女性为12例,男、女比例为2.4∶1,确诊时年龄为1.3~14.6岁。采取回顾性分析法对2组患儿一般临床资料、实验室检查结果进行分析。同时分析2组患儿PNS首次治疗复发时间、复发率、频复发率、加用免疫抑制剂治疗率,以及激素相关不良反应发生情况。本研究遵循的程序符合中山大学附属第一医院伦理委员会规定,通过该伦理委员会审查,并获得批准(审批文号:伦审〔2022〕334号)。结果①2组患儿发病年龄、性别构成比、PNS临床分型构成比比较,差异均无统计学意义(P>0.05)。②2组患儿初治时24 h尿蛋白定量、血清白蛋白、血清胆固醇、血清肌酐、估算的肾小球过滤率(eGFR)、免疫球蛋白(Ig)G、补体C3水平,以及足量激素疗程及变态反应性疾病占比、肾功能不全占比比较,差异均无统计学意义(P>0.05)。2组患儿初治时血清IgE水平比较,差异有统计学意义(χ2=-2.153,P=0.031)。③本研究41例PNS患儿中,距初始治疗3、6、12个月时复发率分别为12.2%(5/41)、31.7%(13/41)、53.7%(22/41)。与隔日顿服组相比,距初始治疗时12个月内,每日顿服组患儿首次复发时间明显延长(χ2=4.973,P=0.026)。距初始治疗3、6个月时,每日顿服组患儿的复发率明显低于隔日顿服组,并且差异均有统计学意义(P<0.05);距初始治疗12个月时复发率,也低于隔日顿服组[40.9%(9/22)vs 68.4%(13/19)],但是2组比较,差异无统计学意义(P>0.05)。这41例PNS患儿中,60.7%患儿复发有明确诱因(感染或激素减量/停药),对其采取控制感染和(或)激素加量/再次使用足量激素治疗后,尿蛋白检查结果均在4周内转阴。每日顿服组患儿激素相关性眼损害发生率高于隔日顿服组,但是差异无统计学意义(22.7%vs 5.3%,P=0.257)。结论激素敏感型PNS患儿预后良好,复发率高,巩固维持阶段采用每日顿服方案可延长复发时间,降低中期复发率。治疗期间需定期监测患儿眼压,早发现、早治疗糖皮质激素相关性眼损害。 展开更多
关键词 肾病综合征 糖皮质激素类 临床方案 复发 高眼压 儿童
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