Results 51 to 60 of about 9,011,517 (357)

dUTPase is essential in zebrafish development and possesses several single‐nucleotide variants with pronounced structural and functional consequences

open access: yesFEBS Open Bio, EarlyView.
dUTPases are involved in balancing the appropriate nucleotide pools. We showed that dUTPase is essential for normal development in zebrafish. The different zebrafish genomes contain several single‐nucleotide variations (SNPs) of the dut gene. One of the dUTPase variants displayed drastically lower protein stability and catalytic efficiency as compared ...
Viktória Perey‐Simon   +6 more
wiley   +1 more source

Evaluation of antioxidant status and oxidative stress markers in follicular fluid for human in vitro fertilization outcome

open access: yesReproductive Medicine and Biology, 2018
Purpose Antioxidant status and oxidative stress markers in human follicular fluid (FF) surrounding oocytes may be related to the outcomes of in vitro fertilization and embryo transfer (IVF‐ET).
Takuji Nishihara   +3 more
doaj   +1 more source

Multi‐omics and low‐input proteomics profiling reveals dynamic regulation driving pluripotency initiation in early mouse embryos

open access: yesFEBS Open Bio, EarlyView.
Mouse pre‐implantation development involves a transition from totipotency to pluripotency. Integrating transcriptomics, epigenetic profiling, low‐input proteomics and functional assays, we show that eight‐cell embryos retain residual totipotency features, whereas cytoskeletal remodeling regulated by the ubiquitin‐proteasome system drives progression ...
Wanqiong Li   +8 more
wiley   +1 more source

Brave Sperm and Demure Eggs: Fallopian Gender Politics on YouTube [PDF]

open access: yes, 2015
A narrative analysis of videos of human conception from medical and nonmedical sources aired in the democratic space of YouTube finds that stereotypical gender roles are consistently assigned to cellular behavior.
Nettleton, Pamela Hill
core   +1 more source

Laser microdissection as a new approach to prefertilization genetic diagnosis [PDF]

open access: yes, 2000
The genetic status of oocytes can be determined by polar body (PB) analysis. Following PB extraction, a genetic evaluation is performed. As each PB contains the complementary genetic material of the oocyte, PB analysis reveals information about its ...
Buchholz, Tina   +2 more
core   +1 more source

Trace Nickel Activated Biphasic Core‐CuOii/Shell‐CuOi Secondary Microspheres Enable Room Temperature Parts‐Per‐Trillion‐Level NO2 Detection

open access: yesAdvanced Engineering Materials, EarlyView.
An idea of designing novel sensors is proposed by creating appropriate Schottky barriers and vacancies between isomorphous Core‐CuOii/ Shell‐CuOi secondary microspheres and enhancing catalytic and spill‐over effects, and electronegativity via spontaneous biphasic separation, self‐assembly, and trace‐Ni‐doping.
Bala Ismail Adamu   +8 more
wiley   +1 more source

The lifetime of excess atmospheric carbon dioxide [PDF]

open access: yes, 1994
We explore the effects of a changing terrestrial biosphere on the atmospheric residence time of CO2 using three simple ocean carbon cycle models and a model of global terrestrial carbon cycling.
Braswell, Rob, Moore, B
core   +2 more sources

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

open access: yesAdvanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida   +16 more
wiley   +1 more source

Increased reproductive outcomes after optimized sperm preparation

open access: yesFrontiers in Cell and Developmental Biology
A key factor to the success of in vitro fertilization (IVF) is the preparation of human sperm, a critical step that directly impacts the efficacy of the procedure.
Matías D. Gómez-Elías   +17 more
doaj   +1 more source

A PMMA-Based Microfluidic Device for Human Sperm Evaluation and Screening on Swimming Capability and Swimming Persistence

open access: yesMicromachines, 2020
The selection of high-quality sperm is essential to the success of in vitro fertilization (IVF). As human cervical mucus has a high viscosity, without enough swimming persistence, human sperm clouds cannot arrive at the ampulla to fertilize the egg.
Yimo Yan   +3 more
doaj   +1 more source

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