نتایج جستجو برای: invitro fertilization
تعداد نتایج: 34316 فیلتر نتایج به سال:
In this study, αand β-phase As4S4 nanoparticles were prepared by wet nanomilling using sodium dodecyl sulfate as a surfactant. The properties of the nanoparticles were characterized by particle size distribution and Raman scattering. A monomodal distribution, in the 150 – 200 nm range characterized the particle size of both phases after milling. Raman scattering revealed a common pattern for al...
Ashok Balasundaram: Cone beam Computed Tomography imaging of periodontal bone (Under the direction of Dr. André Mol) Cone beam computed tomography (CBCT) is a low-dose, low-cost three dimensional imaging modality used for several oral and maxillofacial applications. This project evaluated the accuracy of Cone-Beam CT imaging to assess periodontal alveolar bone. In Phase I, ground truth measurem...
Cell cycle inhibition is important hallmark of anti cancer research. CDKs are divided into two types based on their Cell cycle controlling and transcriptional control. CDK 9, a transcriptional regulator serves as potential drug target. Only few drugs are under clinical trials phase 1/2/3 of CDK 9 inhibitory potential. 3BLR (pdb id) is used as docking target. Virtual screening is carried out bas...
We present in-vitro sensing of glucose using a newly developed efficient optical fiber glucose sensor based on a Compound Parabolic Concentrator (CPC) tipped polymer optical fiber (POF). A batch of 9 CPC tipped POF sensors with a 35 mm fiber length is shown to have an enhanced fluorescence pickup efficiency with an average increment factor of 1.7 as compared to standard POF sensors with a plane...
Background Xenotransplantation involves the transplantation of nonhuman tissue or organs to humans. Worldwide shortage of organs for clinical applications has shifted the focus towards non-human sources. Pig represents a rich source of organ donors but the presence of porcine endogenous retroviruses (PERVs) represents a particular risk and considered as a major obstacle during xenotransplantati...
We report an integrated ultrasound (US) and optical coherence tomography (OCT) probe and system for intravascular imaging. The dual-function probe is based on a 50 MHz focused ring US transducer, with a centric hole for mounting OCT probe. The coaxial US and light beams are steered by a 45° mirror to enable coregistered US∕OCT imaging simultaneously. Lateral resolution of US is improved due to ...
background: determination of oocyte and embryo quality are one of the most important goals in ivf. anti-mullerian hormone (amh) is secreted by the ovarian granulosa cells into blood flow and follicular fluid. follicular fluid anti-mullerian hormone level is probably a marker of activity of granulose cells. objective: to evaluate whether high level of follicular fluid anti-mullerian hormone leve...
زمینه و هدف: پروژسترون مترشحه از تخمدان تا هفته هفتم حاملگی برای حفظ بارداری لازم است. در سیکل های با روش های کمک باروری تجویز آگونیست های gnrh و همچنین برداشت اووست و سلول های گرانولوزای همراه آن باعث نارسایی جسم زرد می شود و پروژسترون مترشحه از تخمدان کافی برای حفاظت حاملگی نخواهد بود. امروزه بهترین راه حمایت فازلوتئال تجویز پروژسترون است. این مطالعه به منظور ررسی و مقایسه اثرات فرم تزریقی و ...
Background: Failed fertilization post ICSI has been mainly attributed to the sperm’s inability to induce oocyte activation. Phospholipase C Zeta (PLCζ) is considered to be a primary factor for the induction of oocyte activation. The aim of this study was to quantitatively assess the expression of PLCζ in globozoospermic or individuals with previous low or failed fertilization in comparison to f...
To investigate the mechanisms that account for the voltage dependence of fertilization and provide an electrical block to polyspermy, we studied cross-fertilizations between three species of amphibians having different degrees of voltage dependence. Anurans, such as the toad Bufo japonicus, as well as the primitive urodele Hynobius nebulosus, have voltage-dependent fertilization; other urodeles...
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