نتایج جستجو برای: implantation failure
تعداد نتایج: 425656 فیلتر نتایج به سال:
BACKGROUND Heart failure is associated with impaired myocardial metabolism with a shift from fatty acids to glucose use for ATP generation. We hypothesized that cardiac accumulation of toxic lipid intermediates inhibits insulin signaling in advanced heart failure and that mechanical unloading of the failing myocardium corrects impaired cardiac metabolism. METHODS AND RESULTS We analyzed the m...
Patients with sick sinus syndrome (SSS) and implantation of permanent pace maker (PPM) have complications that prevalence of them are depended to type of PPM. Evaluation of these complications is the goal of this study . File of 83 patients with SSS who experinced implantation of VVI mode...
BACKGROUND Implantation is a complex initial step in the establishment of a successful pregnancy. Although embryo quality is an important determinant of implantation, temporally coordinated differentiation of endometrial cells to attain uterine receptivity and a synchronized dialog between maternal and embryonic tissues are crucial. The exact mechanism of implantation failure is still poorly un...
purpose: to report three cases of alport syndrome in one family with anterior lenticonus and retinal flecks. patients and findings: three members of one family with consanguineous parents are presented who had renal and ocular involvement. they had anterior lenticonus and a beaten bronze appearance in the macula. reduced visual acuity and photophobia were the chief complaints of these patients...
Introduction: Cardiac Resynchronization therapy (CRT) is very significant in the management of Heart Failure with electrical dyssynchrony. This dyssynchrony measured using QRS duration on ECG. CRT has been shown to reduce mortality and improve symptoms heart failure. The objective study review 4-year experience implantation, complications challenges implantation. Methods materials: was a retros...
BACKGROUND Although pregnancy rate in in vitro fertilization-embryo transfer (IVF-ET) cycles has been increased over the preceding years, but the majority of IVF-ET cycles still fail. Granulocyte colony stimulating factor (GCSF) is a glycoprotein that stimulates cytokine growth factor and induces immune system which may improve pregnancy rate in women with history of implantation failure. OBJ...
Background & Aim: Many factors influence the tensile strength of the tendon in a tendon-bone tunnel complex. The purpose of this study is to determine the influence of tendon length & time of implantation of the tendon in the bone tunnel on the tensile strength of the tendon in a rabbit model. Material and Methods: In this prospective study fourteen adult(age 6 months) White New Zealand rab...
Recurrent implantation failure refers to failure to achieve a clinical pregnancy after transfer of at least four good-quality embryos in a minimum of three fresh or frozen cycles in a woman under the age of 40 years. The failure to implant may be a consequence of embryo or uterine factors. Thorough investigations should be carried out to ascertain whether there is any underlying cause of the co...
Phospholipase C beta 1 (PLCβ1) is a downstream effector of G-protein-coupled receptor signalling and holds central roles in reproductive physiology. Mice with a disruption in the Plcβ1 gene are infertile with pleiotropic reproductive defects, the major reproductive block in females being implantation failure. Here, PLCβ1 was demonstrated at the luminal and glandular epithelia throughout the pre...
Background/Aims: Chronic endometritis (CE) is a poorly investigated pathology that has been related to adverse reproductive outcomes, such as implantation failure and recurrent miscarriage. In this paper we aim to provide an overview about diagnosis, etiology, pathophysiology and treatment of CE, its impact on endometrial microenvironment and how it may be associated with infertility. Methods: ...
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