Results 21 to 30 of about 10,879 (181)
Studies on the small neuropeptide: RPCH and ENK, their function of reproductive regulation in the mud crab, Scylla paramamosain (Estampador, 1949) [PDF]
, 2013 拟穴青蟹（Scyllaparamamosain）是我国东南沿海重要的经济蟹类。本文以拟穴青蟹为研究对象，采用动物生理学、分子生物学、生物信息学等方法和手段，研究了3种小分子神经肽即红色素聚集激素（Redpigmentconcentratinghormone，RPCH）、亮氨酸-脑啡肽（Leucineenkephalin，Leu-ENK）和甲硫氨酸-脑啡肽（Methionineenkephalin，Met-ENK）的结构、特征和生殖调控功能。主要结果如下： （1 ...
曾慧
core
Ultrasound in Obstetrics &Gynecology, Volume 65, Issue 3, Page 372-383, March 2025.ABSTRACT Objective To assess whether premenopausal women diagnosed with deep or ovarian endometriosis on transvaginal sonography (TVS) were more likely to suffer from dyspareunia and pelvic pain symptoms, and have a lower quality of life, compared to women without sonographically diagnosed deep or ovarian endometriosis.
P. Chaggar +5 more
wiley +1 more source
Recent progresses of study on oogenesis of teleost(硬骨鱼类卵子发生研究及其应用前景)
Zhejiang Daxue xuebao. Lixue ban, 2003 硬骨鱼类的发育有卵生和卵胎生两种形式,其卵子发生的过程相似,目前人为地将卵原细胞到卵母细胞分为6个连续时相.卵原细胞期的卵巢体积小,卵原细胞均一,单层滤泡期卵巢体积增大,初级卵母细胞为主,卵黄和滤泡细胞出现,细胞代谢加强,卵黄泡期卵巢亦增大,卵膜开始形成,卵黄沉积,出现卵黄粒和脂肪滴,卵黄充满期卵巢继续增大,卵母细胞个体急剧增大,卵黄球和皮质泡形成,个别出现油滴,卵膜增厚,成熟期卵巢和卵子达到最大,各种不同鱼类的卵膜形态不一,衰退期卵巢退回到单层滤泡期,多次产卵类型退回到卵黄充满期,继续保持产卵能力 ...
ZHANGLi-fei(张立飞) +1 more
doaj +1 more source
Functional Study of Ecdysone Signaling Pathway Related Genes During Ovarian Maturation and Juvenile Development of The Mud Crab, Scylla paramamosain [PDF]
, 2015 蜕皮激素在节肢动物蜕皮、附肢再生以及繁殖等生理过程起着重要作用。蜕皮激素受体（Ecdysonereceptor，EcR）在整个蜕皮激素信号通路中起重要作用。当蜕皮激素合成达到一定浓度以后，能够诱导EcR与维甲酸X受体（retinoidXreceptor，RXR）形成有功能的EcR/RXR异源二聚体，进而启动蜕皮激素信号通路产生级联反应，诱导E75、E74、BroadComplex（BR-C）等早期应答基因的转录。这些早期应答基因进一步调控下游一些蛋白酶和其它基因的陆续表达，产生次级应答 ...
巩杰
core
Ultrasound in Obstetrics &Gynecology, Volume 65, Issue 3, Page 295-302, March 2025.ABSTRACT Objective Although artificial intelligence (AI) is increasingly being applied to ultrasound imaging in gynecology, efforts to synthesize the available evidence have been inadequate. The aim of this systematic review was to summarize and evaluate the literature on the role of AI applied to ultrasound imaging in benign gynecological disorders ...
F. Moro +8 more
wiley +1 more source
Gonad development during sexual differentiation in Epinephelus akaara and E. awoara [PDF]
, 2015 赤点石斑鱼和青石斑鱼已分别被确认为双向性转变和雌性先熟的雌雄同体型种类，但是第一次性成熟前的性分化和性腺发育特征还未有深入的研究。本研究利用传统组织学切片方法，跟踪赤点石斑鱼从孵化后6周到95周和青石斑鱼从孵化后6周到85周的性腺发育过程，深入了解石斑鱼性分化过程中性腺发育特征，探讨石斑鱼性别方式的多样性。孵化后约6周的仔鱼捕获自福建漳浦附近海域，并移入当地的养殖场利用天然海水进行室外养成，直至达到商品规格(一般2年以上)。实验样品采集从2013年2月至2014年5月，每2~17周(主要5~6周)一次 ...
王盈颖
core
Ultrasound in Obstetrics &Gynecology, Volume 65, Issue 2, Page 226-234, February 2025.ABSTRACT Objectives Ultrasound is the first‐line imaging modality of the pelvis in the pediatric and adolescent gynecology (PAG) population. Ultrasound findings in pre‐ and postpubertal PAG patients differ from those in adults. Diagnostic models for adnexal pathology have not been validated in this cohort.
N. Cooper +15 more
wiley +1 more source
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 +4 more
doaj
ARHI interacts with TR3 and activates apoptosis and autophagy via mitochondrial signaling pathway in human gastric cancer cells [PDF]
, 2015 ARHI是一个母源性抑癌印记基因，属ras/rap超家族成员，在人类多种正常组织中高表达，而在人卵巢癌、乳腺癌、胰腺癌、肝癌等多种肿瘤中表达明显下调或缺失。ARHI可以调节细胞周期控制细胞增殖，并通过多种途径参与细胞的凋亡和自噬。核孤儿受体TR3属于类固醇/甲状腺受体超家族，几乎参与人体所有组织和器官的功能调节。TR3作为转录因子调控基因表达，参与细胞增殖和凋亡调控过程，还可以作为功能蛋白，通过蛋白亚细胞定位、蛋白相互作用和蛋白修饰等途径发挥作用。本课题研究两个蛋白是否结合及其结合模式 ...
徐伟
core
Ultrasound in Obstetrics &Gynecology, Volume 64, Issue 6, Page 808-817, December 2024.ABSTRACT Objectives The primary aim was to validate the International Ovarian Tumor Analysis (IOTA) benign simple descriptors (BDs) followed by the Assessment of Different NEoplasias in the adneXa (ADNEX) model, if BDs cannot be applied, in a two‐step strategy to classify adnexal masses identified during pregnancy. The secondary aim was to describe the
J. Barcroft +8 more
wiley +1 more source