نتایج جستجو برای: implantation

تعداد نتایج: 59981  

Journal: :anatomical sciences journal 0
hossein nikzad gametogenesis research center, , kashan university of medical sciences, kashan, iran. ali akbar taherian anatomical sciences research center, kashan university of medical sciences, kashan, iran. yoshiro akimoto department of obstetrics and gynecology, school of medicine, kyorin university, mitaka, tokyo, japan. mitsutoshi iwashita department of obstetrics and gynecology, school of medicine, kyorin university, mitaka, tokyo, japan. javad amini mahabadi gametogenesis research center, , kashan university of medical sciences, kashan, iran. mahdi salehi department of obstetrics and gynecology, school of medicine, kyorin university, mitaka, tokyo, japan.

introduction: the implantation is a complex procedure that involves many molecules. one of these molecules is integrin specially &alphav;&beta3; which serves as receptor for components of extra cellular matrix to act as bridging molecules between the blastocyst and the endometrial surface during the implantation process. by blocking &alphav;&beta3; interactions, the implantation can be impaired...

Journal: :MRS Advances 2022

Ion implanters require high energy to improve the light sensitivity of advanced image sensors with deep photodiode structures. Although ion enable implantation, conditions near wafer surface may differ from those in shallow implantation. As implantation increases, dopant ions are implanted deeper into wafer. Consequently, conventional four-point probe tools inappropriate for measuring electrica...

Journal: :Journal of molecular cell biology 2015
Bo Chu Liangwen Zhong Shuang Dou Jun Wang Jianmin Li Mingwei Wang Qinghua Shi Yide Mei Mian Wu

Embryo implantation is a crucial step in mammalian reproduction. However, little is known regarding the physiological roles of microRNAs in the regulation of embryo implantation. Here we show that a minimum uterine expression of miR-181 is essential for the onset of embryo implantation. Both transient and prolonged transgenic expression of miR-181 led to impaired implantation, which can be resc...

Journal: :Human reproduction update 2014
Ye Chun Ruan Hui Chen Hsiao Chang Chan

BACKGROUND Although embryo implantation is a prerequisite for human reproduction, it remains a poorly understood process. The molecular mechanisms regulating endometrial receptivity and/or embryo implantation are still largely unclear. METHODS Pubmed and Medline literature databases were searched for articles in English published up to December 2013 with relevant keywords including 'endometri...

Journal: :international journal of fertility and sterility 0
michael kamrava mei yin

background: a major hurdle to improved in vitro fertilization (ivf) success rate is defective endometrial receptivity and implantation. various techniques have been advocated to increase implantation while reducing side effects. currently, embryo transfer (et) is performed blindly without direct visualization. as such, we sought to develop a technique utilizing a flexible minihysteroscope with ...

Journal: :international journal of reproductive biomedicine 0
ahmad mahran mahmoud ibrahim haitham bahaa

background: implantation remains a limiting step in ivf/icsi. endometrial injury isa promising procedure aiming at improving the implantation and pregnancy rates after ivf/icsi. objective: the aim of this study was to evaluate the effect of endometrial injury induced in precedingcycle on ivf/icsi outcome. materials and methods: four hundred patients undergoing their first ivf/icsi cycle in two ...

Journal: :Journal of Korean Medical Science 1998
S. W. Park H. K. Park M. K. Hong S. G. Lee I. S. Lee J. W. Kim C. W. Lee J. J. Kim S. J. Park

Balloon angioplasty of ostial left anterior descending coronary artery (LAD) lesions has been associated with a high rate of acute complications and late restenosis. Recently, coronary stenting has been proposed as an effective treatment modality for ostial LAD lesions. To evaluate the effects of stent design on the development of late restenosis, we retrospectively analyzed the efficacy of slo...

Journal: :medical journal of islamic republic of iran 0
m farhadi from the en.t. deptrasui akram medical complex, iran university of medical sciences, tehran, islamic republic of lran. a daneshi from the en.t. dept rasui akram medical complex, iran university of medical sciences, tehran, islamic republic of lran. h imamjomeh dept. of audiology, rasui akram medical complex, iran university of medical sciences, tehran, islamic republic of lran.

cochlear implantation has become an increasingly common procedure in the rehabilitation of selected cases of profound deafness.' patients should have profound total bilateral sensorineural hearing loss. sound is transformed into small electric currents which stimulate the auditory nerves in the cochlea and generate the hearing sensation. the nucleus cochlear implant is the result of more t...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2004
Kien C Luu Gui Ying Nie Lois A Salamonsen

The endometrium is receptive to embryo implantation only for a short period in each reproductive cycle: development of receptivity requires alterations in endometrial gene expression. Calbindin (CaBP)-d9k and CaBP-d28k are related proteins containing EF hand motifs that have a high affinity for Ca2+. We previously demonstrated that endometrial expression of CaBP-d9k mRNA is highly regulated dur...

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