Results 131 to 140 of about 190,003 (291)

Comparatively profiling the transcriptome of human, Porcine and mouse oocytes undergoing meiotic maturation

open access: yesBMC Genomics
Background Oocyte maturation is a critical process responsible for supporting preimplantation embryo development and full development to term. Understanding oocyte gene expression is relevant given the unique molecular mechanism present in this gamete ...
Naru Zhou   +13 more
doaj   +1 more source

Reproductive biology of blue marlin (Makaira nigricans) in the western Pacific Ocean [PDF]

open access: yes, 2009
The reproductive biology of blue marlin (Makaira nigricans) was assessed from 1001 fish (ranging from 121 to 275 cm in eye-to-fork length; EFL) caught by Taiwanese offshore longliners in the western Pacific Ocean from September 2000 to December ...
Chien-Chung Tszeng, Chien-Chung Tszeng   +3 more
core  

Fluorescence Lifetime Imaging Techniques—A Review on Principles, Applications and Clinical Relevance

open access: yesJournal of Biophotonics, EarlyView.
This article gives an overview of the most frequently used fluorescence‐lifetime imaging (FLIM) techniques, their capabilities and typical applications in biology and clinical studies. ABSTRACT This article gives an overview of the most frequently used fluorescence‐lifetime imaging (FLIM) techniques, their capabilities, and typical applications ...
V. I. Shcheslavskiy   +5 more
wiley   +1 more source

Time elapsed between ovulation and insemination determines the quality of fertilized rat oocytes

open access: yesThe Journal of Reproduction and Development
Genetically modified rats are valuable models in human disease research. We recently developed an improved system for rat sperm cryopreservation and in vitro fertilization (IVF) that facilitates the efficient production and preservation of genetically ...
Naomi NAKAGATA   +4 more
doaj   +1 more source

Noncanonical Nucleotides in the Genome Around the Maternal‐Zygotic Transition

open access: yesJournal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
In this paper, Kazzazi et al. provide a comprehensive review of the dynamics of nonconventional nucleotides in the genome during early developmental stages, hypothesizing a potential role for these nucleotides in the activation of the zygotic genome. ABSTRACT From the very moment of fertilization and throughout development, the cells of animal embryos ...
Latifa Kazzazy   +7 more
wiley   +1 more source

Embryogenesis in Myrmicine Ants Combines Features of Short Germ‐Band Development With a Progressive Mode of Segmentation

open access: yesJournal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
Different insect species exhibit remarkable diversity in the developmental trajectories from fertilized eggs to hatching larvae. For three myrmicine ant species, we observe a novel combination of a developmental features: small embryonic primordia, a mode of embryogenesis termed short/intermediate germ‐band development, and progressive establishment of
Chi‐Chun Fang   +5 more
wiley   +1 more source

Oocytes [PDF]

open access: yesHuman Reproduction, 2000
openaire   +2 more sources

Calpain Proteases and the Evolving Signaling Network in Insect Embryonic Patterning

open access: yesJournal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
Insect embryonic Dorsal‐Ventral (DV) patterning relies on the BMP and Toll pathways to different extents. Calcium‐dependent cystein proteases of the Calpain family also exert an important function to pattern the DV axis. In Drosophila, Calpain A cleaves the Cactus/IkappaB inhibitor and modifies Toll signals in ventral regions of the embryo. In Rhodnius
Alison Julio, Helena Araujo
wiley   +1 more source

Expression profile and gap-junctional transfer of microRNAs in the bovine cumulus-oocyte complex

open access: yesFrontiers in Cell and Developmental Biology
MicroRNAs (miRNA) are important regulators of oocyte maturation, playing a key role in modulating gene expression both in a temporal- and spatial-specific manner.
R. Six   +13 more
doaj   +1 more source

Increasing acidification does not affect sexual reproduction of a solitary zooxanthellate coral transplanted at a carbon dioxide vent

open access: yesLimnology and Oceanography, EarlyView.
Abstract The absorption of atmospheric carbon dioxide is causing significant changes to the carbonate chemistry of the ocean, in a phenomenon called ocean acidification. The latter makes it potentially more difficult for marine calcifiers like corals, to build their calcium carbonate structures, thus affecting their ability to survive and reproduce ...
Chiara Marchini   +11 more
wiley   +1 more source

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