Results 81 to 90 of about 17,633 (227)

Innate immunity shapes the persistent transmission of plant viruses by insect vectors

New Plant Protection, EarlyView.
In this review, we focus on two key aspects of the virus–vector interplay: (1) persistently transmitted viruses utilize host factors to overcome transmission barriers; and (2) molecular recognition activates antiviral immunity and subsequent viral counter‐defense. Understanding these interactions offers critical insights for developing novel strategies
Gang Lu, Chuanxi Zhang, Junmin Li
wiley   +1 more source

Use of retinoids during oocyte maturation diminishes apoptosis in caprine embryos [PDF]

, 2015
Exposure of caprine oocytes and embryos to retinoids enhances embryonic development, but the mechanisms governing this phenomenon have not been characterised.
Cantanhêde, Ludymila F., Chaves, Ricardo M., Conceição, Juliana C. Z., Ferreira-Silva, José C., Lima, Paulo F., Moura, Marcelo T., Oliveira, Marcos A. L., Ramos-Deus, Pamela, Silva, Priscila G. C.   +8 more
core   +1 more source

Birth of Normal Mice Following Round Spermatid Injection Without Artificial Oocyte Activation

Journal of Reproduction and Development, 2011
For fertilization using round spermatid injection (ROSI) in mice, oocytes need to be artificially preactivated because of the lack of oocyte-activating capacity in round spermatids of this species. However, when round spermatids were frozen-thawed before microinjection, 11-71% of injected oocytes developed into 2-cell embryos without any artificial ...
Narumi, Ogonuki, Kimiko, Inoue, Atsuo, Ogura   +2 more
openaire   +3 more sources

Exploring the Impact of Polystyrene Microplastic Beads on Male Gonads of the Marine Mussel, Mytilus galloprovincialis

Environmental Toxicology, EarlyView.
ABSTRACT Plastic, with its remarkable versatility and numerous applications, has greatly benefited humanity. However, its extreme resistance to natural degradation means it persists in the environment for long periods, causing global environmental problems.
Teresa Chianese, Mariachiara Galati, Tiziana Cappello, Maria Maisano, Gennaro Lettieri, Carmela Marinaro, Marina Piscopo, Gianluca Fasciolo, Carlos Gravato, Gaetana Napolitano, Giulia Paolella, Annamaria Locascio, Rosaria Scudiero, Luigi Rosati   +13 more
wiley   +1 more source

Artificial Oocyte Activation: Methods and Clinical Efficiency after Intra-Cytoplasmic Sperm Injection

مجله دانشکده پزشکی اصفهان, 2013
Background: Failed fertilization is a rare event occurring after intra-cytoplasmic sperm injection (ICSI). Failure of oocyte activation considered as main reason for failed fertilization. For overcome of failed fertilization, Artificial Oocyte Activation
Mohammad Reza Deemeh, Marzieh Tavalaee, Mohammad Hossein Nasr-Esfahani   +2 more
doaj  

Requirement of Lysosomal Two-Pore Channels for Normal Fertilization and Artificial Oocyte Activation in Mice

Frontiers in Bioscience-Landmark
Background: Lysosomes serve not only in the degradation of cellular components but also as calcium (Ca2+) stores. In this study, we investigated the effects of trans-Ned19, an inhibitor of lysosomal calcium channels known to block two ...
Tadashi Yamazaki, Md Wasim Bari, Satoshi Kishigami   +2 more
doaj   +1 more source

Oocyte activation: The impact of calcium signals on fertilization [PDF]

, 2008
Fertilization is triggered by changes in intracellular calcium concentration. In mammals, these transients in ooplasmic calcium concentration take the form of repetitive spikes, so called calcium oscillations (Ca2+-oscillations).
De Sutter, Petra, Heytens, Elke, Soleimani, Reza   +2 more
core   +1 more source

Assessment of Oxidative Stress, Vitellogenin, and Human Health Risks Derived From Nile Tilapia Exposed to Metals and Metalloids in Southeastern Brazil

Environmental Toxicology, EarlyView.
ABSTRACT Urban coastal lagoons are highly vulnerable ecosystems increasingly affected by metal contamination, as well as multiple anthropogenic stressors. This study evaluated ecotoxicological and human health risks associated with chronic metal exposure in Nile tilapia (Oreochromis niloticus) from an anthropogenically impacted lagoon in southeastern ...
Julia Araújo Alves, Priscila M. O. Muniz Cunha, Shênia Patrícia Corrêa Novo, Lorena Oliveira Souza Soares, Tatiana Dillenburg Saint‐Pierre, Fábio Veríssimo Correia, André Luís de Sá Salomão, Rachel Ann Hauser‐Davis, Enrico Mendes Saggioro   +8 more
wiley   +1 more source

Oocyte maturation and quality: role of cyclic nucleotides [PDF]

, 2016
Advance Publication first posted online on 15 July 2016 - Accepted manuscriptThe cyclic nucleotides, cAMP and cGMP, are the key molecules controlling mammalian oocyte meiosis.
De Vos, M., Gilchrist, R., Luciano, A., Richani, D., Richard, F., Smitz, J., Sugimura, S., Thompson, J., Wang, X., Zeng, H.   +9 more
core   +1 more source

Space biomedicine‐oriented bioink and biomimetic blood‒brain barrier

VIEW, EarlyView.
Bioinks and bioprinting play a pivotal role in the successful delivery of cell models and the fabrication of tissue models for space biomedicine research. This study investigated the effects of hypergravity and vibration on two‐dimensional adherent cells and three‐dimensional embedded cells and provided methods for storing hybrid bioink and high ...
Ranran Yan, Ge Gao, YuJuan Li, YuLin Deng   +3 more
wiley   +1 more source