Results 11 to 20 of about 1,429 (165)
Study of regulation of OVOL2 in colorectal cancer metastasis and invasion [PDF]
, 2016 OVOL2是进化上相当保守的一种转录因子，它与胚胎发育之间的关系已经被很多研究所报道，但是OVOL2与肿瘤的发生发展关系还知之甚少。本文主要从OVOL2是如何调控结直肠癌的转移与侵袭方面做了详细的研究。 首先我们从结直肠癌病人样本的组织芯片中发现肿瘤中OVOL2含量低的病人预后生存期更短。然后我们通过体外细胞增殖实验、裸鼠皮下成瘤实验、小鼠免疫组化实验、HE染色实验证实了OVOL2不能够抑制结直肠癌的增殖。于是我们猜测OVOL2可能是通过抑制结直肠癌转移和侵袭过程，延长患者的寿命 ...
孙广斌
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Ultrasound in Obstetrics &Gynecology, Volume 67, Issue 4, Page 461-469, April 2026.ABSTRACT Objective The aim of this study was to evaluate the perinatal outcomes of monochorionic diamniotic (MCDA) twin pregnancies complicated by early twin‐to‐twin transfusion syndrome (TTTS) treated with fetoscopic laser surgery (FLS), and to compare rates of fetal survival across Quintero stages.
F. G. Sileo +35 more
wiley +1 more source
Zhejiang Daxue xuebao. Lixue ban, 2003 采用扫描电镜技术,观察了赤链华游蛇消化道粘膜上皮表面细微结构的特征.结果表明,其食道前段粘膜上皮由纤毛细胞、柱状细胞组成,后段为假复层上皮细胞组成;胃粘膜上皮为单层柱状细胞,细胞表面无微绒毛;肠粘膜上皮细胞表面有微绒毛;同时,还讨论了这些结构与机能的关系.
LIZhong-jie(李仲杰) +2 more
doaj +1 more source
The pathophysiology of meibomian gland dysfunction related ocular surface diseases and the molecular mechanism [PDF]
, 2016 第一部分：睑板腺功能障碍诱导的小鼠干眼动物模型的建立 目的：睑板腺功能障碍（MGD）是引起蒸发过强型干眼最常见的病因，但是MGD引起的眼表面病变的病理生理过程目前还知之甚少。本研究的主要目的是建立蒸发过强型干眼的动物模型，并观察该类型干眼的眼表病理变化过程。 方法：用裂隙灯显微镜观察外异蛋白基因（EctodysplasinA，EDA)突变鼠（Tabby鼠）的眼表病变过程，用荧光素钠染色方法检测Tabby鼠的角膜上皮缺损状况，用酚红棉线检测小鼠的水性泪液分泌，对角膜和眼睑进行H&E染色和油红染色 ...
李三明
core
Ultrasound in Obstetrics &Gynecology, Volume 66, Issue 6, Page 706-715, December 2025.ABSTRACT Objective To evaluate the use of twin vs singleton growth charts for detecting small‐for‐gestational‐age (SGA) twins at risk of adverse neonatal outcomes. Methods MEDLINE, EMBASE, CINAHL, Cochrane and Scopus databases were searched electronically from inception to May 2024.
S. Sorrenti +9 more
wiley +1 more source
Zhejiang Daxue xuebao. Lixue ban, 2001 本文对日本沼虾触角腺的形态学进行了初步研究.日本沼虾的触角腺由体腔囊、迷路、原肾管和膀胱组成.体腔囊细胞有许多足状突起，具有过滤功能；迷路占整个腺体的4/5，其展开长度约(100± 10)cm；迷路细胞顶部具有发达的微绒毛、基部质膜内陷.原肾管细胞的微绒毛短而不规则，基部质膜内陷却十分发达，原肾管的展开长度约(40±4)cm；膀胱细胞基部质膜也有内陷但无微绒毛.上述结构是触角腺排泄功能和渗透压调节的重要基础.
JIANGNai-cheng(姜乃澄) +1 more
doaj +1 more source
, 2013 建立不同末端形状纳米纤维的黏附接触模型,主要分析了蘑菇状,铲状,柱状等不同末端形貌及蘑菇状纤维的几何参数对单纤维/基底黏附界面强度的影响,进一步分析了Y型纤维结构的黏附行为。进一步揭示一类生物的微观黏附机制提供了理论依据 ...
彭志龙, 陈少华
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Ultrasound in Obstetrics &Gynecology, Volume 66, Issue 6, Page 738-746, December 2025.ABSTRACT Objective To evaluate the performance of non‐invasive prenatal testing (NIPT) in vanishing‐twin and multiple pregnancies. Methods This study was conducted as part of the TRIDENT‐2 study, in which NIPT was offered as a first‐tier screening test to women with a multiple pregnancy or vanishing‐twin pregnancy between 1 June 2020 and 31 March 2023 ...
J. C. A. van Eekhout +86 more
wiley +1 more source
Study on the responses of Bougainvillea to the cold stress [PDF]
, 2015 本实验以三角梅为实验材料，研究了不同品种的三角梅对低温的适应性，旨在探究不同品种的抗寒力高低，为三角梅向北方引种提供理论依据。实验主要分为野外实验和室内试验两部分，主要结果如下： 1.确定21个三角梅品种的冬季适应等级 经过对厦门市三角梅在越冬期间的形态观察，确定三角梅21个品种的冬季低温适应能力，冬季的低温对三角梅的生长造成一定的影响。品种不同，其抗寒力不同，抗寒力强的三角梅品种的多数叶片不凋落，枝条没有明显的寒害症状，抗寒力差的三角梅品种的多数叶片凋落，植物的生长受到低温的抑制 ...
王振
core
Bring the Boys Back Home: The Impact of Foreign Divestments on Local Firms
The World Economy, Volume 48, Issue 11, Page 2386-2407, November 2025.ABSTRACT Divestments by foreign multinationals are an important phenomenon that is largely neglected in the literature. We use firm‐level panel data from China to estimate the impact of such divestments on the performance of domestic firms in the local economy.
Holger Görg, Haiou Mao, Nigel Driffield
wiley +1 more source