Results 21 to 30 of about 3,499 (118)

卵泡液中神经营养因子4及卵丘细胞TrkB受体与卵子发育潜能的关系

Zhongshan Daxue xuebao. Yixue kexue ban, 2021
目的探索人卵泡液中神经营养因子4（NT-4）及卵丘颗粒细胞中TrkB受体的表达与卵子发育潜能的关系。方法收集2020年5月至2020年11月在中山大学附属第六医院生殖中心，因男方因素行卵胞浆内单精子注射（ICSI）治疗的63例患者的卵泡液和卵丘颗粒细胞，用ELISA检测卵泡液中NT-4水平，实时荧光定量PCR检测卵丘颗粒细胞中TrkB受体两种不同亚型TrkB-fl和TrkB-t1的表达水平，分析与卵子成熟、受精和胚胎发育的关系。结果卵泡液中NT-4水平与正常受精数（rs=0.250， P=0.048 ...
周怡, 李婷婷, 郭映纯, 贾磊, 何姝婧, 方丛   +5 more
doaj  

Parental care and bird embryonic metabolism: A comparison between uniparentally incubating Silver‐throated Tits and biparentally incubating Black‐throated Tits

Functional Ecology, Volume 40, Issue 4, Page 800-815, April 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Studies have shown that organisms may adjust metabolic rates in response to thermal variability, highlighting metabolic plasticity as a key adaptive mechanism. Understanding the extent of metabolic plasticity of an organism is key to predicting its adaptation to climate
Qian Hu, Yue Wang, Hui Wang, Yu Wang, Xin Xia, Jiliang Xu, Jianqiang Li   +6 more
wiley   +1 more source

First Confirmed Cooperative Breeding of the Brown Hornbill (Anorrhinus austeni) in China at the Sino–Lao Frontier 中国中老边境尚勇保护区首次记录白喉犀鸟 (Anorrhinus austeni) 的合作繁殖行为

Integrative Conservation, Volume 5, Issue 1, Page 10-15, March 2026.
First confirmed breeding of the Brown Hornbill in China, documented through cooperative feeding in Shangyong Protected Area. ABSTRACT The Brown Hornbill (Anorrhinus austeni), a Near Threatened frugivore, reaches the northern edge of its distribution in southern Yunnan, China, yet breeding had not been previously documented with site‐attributed nests in
Junsong Li, Aidong Luo, Bo Wang, Yun Yang, Yan Li, Jinhua Li, Jiabin Li, Wendi Yan, Kang Luo   +8 more
wiley   +1 more source

Ultrasound features in early pregnancy for predicting abnormal karyotype in first‐trimester miscarriage

Ultrasound in Obstetrics &Gynecology, Volume 67, Issue 3, Page 376-384, March 2026.
ABSTRACT Objective To investigate whether combining abnormal morphological features observed on ultrasound in live pregnancies that ended in a first‐trimester miscarriage can predict an abnormal karyotype. Methods This retrospective observational cohort study was conducted at the early‐pregnancy assessment unit at University College London Hospital ...
T. Setty, S. L. Kastora, T. Tellum, J. Farren, E. Jauniaux, D. Jurkovic   +5 more
wiley   +1 more source

Host Exploitation by Cuckoos in China: A Review and Real‐Time Tracking Program for Parasitism Records

Integrative Zoology, Volume 21, Issue 2, Page 218-230, March 2026.
China is a global hotspot for cuckoo‐host diversity, with 17 cuckoo species, exploiting 142 host species. We reveal adaptive matching in body size and egg traits, along with niche partitioning among cuckoos, while identifying eight new host species.
Tao Liu, Canchao Yang
wiley   +1 more source

Coral‐Like Yolk–Shell‐Structured CoNi@Void@C Microspheres for Enhanced Microwave Absorption, Photothermal, Anti‐Corrosion, and Radiation Shielding Properties

Rare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT Considering the multiple challenges faced by stealth coatings in complex service environments, the development of multifunctional integrated microwave absorbing materials (MAMs) that combine efficient electromagnetic (EM) attenuation with environmental tolerance has become an urgent need. In this work, coral‐like CoNi@Void@C microparticle (MP)
Jiale Wu, Kaizhao Wang, Kaijun Wang, Hyeona Park, Jangyeon Hwang, Junkai Li, Yafei Wang, Jin Hu, Shizhao Xiong   +8 more
wiley   +1 more source

HA-PIPP^H557A对小鼠受精卵卵裂的影响

Zhongguo shiyan zhenduanxue, 2011
目的研究脯氨酸丰富的肌醇多磷酸5-磷酸酶（PIPP）在组氨酸557位点突变为丙氨酸时PIPPH557A对小鼠受精卵卵裂的调节作用。方法将HA-PIPPH557A重组质粒转染到小鼠受精卵中,用免疫荧光染色法检测HA-PIPPH557A对小鼠受精卵卵裂的影响。然后使用相差显微镜观察并计数HA-PIPPH557A对受精卵卵裂率的影响。结果 HA-PIPPH557A在小鼠受精卵的有丝分裂过程中对卵裂的调节与PIPP的作用相反。并且他们之间的比较具有显著意义 ...
邓欣, 张帆, 张国利, 李亘松, 于秉治   +4 more
doaj  

Comparison of ultrasound with computed tomography and whole‐body diffusion‐weighted MRI in prediction of surgical outcome using ESMO‐ESGO criteria in patients with tubo‐ovarian carcinoma: prospective ISAAC study

Ultrasound in Obstetrics &Gynecology, Volume 67, Issue 2, Page 207-219, February 2026.
ABSTRACT Objective To test the non‐inferiority of extended abdominopelvic ultrasound examination compared with contrast‐enhanced computed tomography (CT) and whole‐body diffusion‐weighted magnetic resonance imaging (WB‐DWI/MRI) in discriminating preoperatively between resectable and non‐resectable disease based on the European Society for Medical ...
D. Fischerova, P. Pinto, J. L. Alcázar Zambrano, J. Vara‐Garcia, V. Chiappa, F. Raspagliesi, D. Franchi, A. V. Urbinati, A. C. Testa, J. Jarkovsky, D. Cibula, F. Moro, Collaborators, F. Frühauf, J. Slama, R. Kocian, S. Alessi, G. Avesani, K. Benesova, A. Burgetova, G. Calareso, L. Lambert, M. Masek, A. Fagotti, C. Panico, P. Pricolo, R. Vigorito   +26 more
wiley   +1 more source

组蛋白去乙酰化酶1在人上皮性卵巢癌组织中的表达

Zhongguo shiyan zhenduanxue, 2011
目的探讨上皮性卵巢癌组织中组蛋白去乙酰化酶1（HDAC1）的表达及临床意义。方法采用免疫组化SP法,测定40例上皮性卵巢癌组织2、0例交界性卵巢肿瘤,20例卵巢良性肿瘤以及10例正常卵巢组织中HDAC1的表达。结果 HDAC1在在卵巢组织中的阳性表达H-score评分均随组织异型程度的增加而逐渐增高,即正常卵巢组织（1.300±0.948 68）和卵巢良性肿瘤（1.750±0.786 40）
贾妍, 邹颖刚, 陈军, 黄冰玉, 崔满华   +4 more
doaj  

Novel Natural History Observations on the Reproductive Biology of King Cobra (Ophiophagus hannah) From Yunnan Province, China 云南省眼镜王蛇繁殖生物学的野外观察

Integrative Conservation, Volume 4, Issue 4, Page 523-526, December 2025.
Here we report three cases of nesting behavior in Yunnan Province, China. Our observations confirmed the presence of multi‐individual participation during the nest guarding, and this behavior was associated with an exceptionally high clutch size. ABSTRACT Although the King Cobra (Ophiophagus hannah) has received considerable conservation attention ...
Kai Wang, Hao‐Nan Mu, Zhuo‐Yu Lu, Wen‐Jie Dong, Han Wan, Chen‐Qi Lu, Sheng‐Jing Xu, Wen Lu, Jing Che   +8 more
wiley   +1 more source