Results 1 to 10 of about 18,397 (241)

Cross-species insemination reveals mouse sperm ability to enter and cross the fish micropyle. [PDF]

Elife
Extracellular matrices surrounding eggs in fish (chorion) and mammals (zona pellucida [ZP]) regulate gamete recognition before fertilization, though their mechanisms differ.
Garibova S, Stickler E, AlAli F, Abdulla MA, Sathappan A, Da'as SI, Ghanem L, Djekidel MN, Portman R, Avella M.   +9 more
europepmc   +2 more sources

Chorion Alterations in Eyed-Stage Salmonid Eggs Farmed in La Araucanía, Chile: A Retrospective Study

Animals, 2021
The chorion is the primary envelop that protects the fish embryo against mechanical actions, pathogens, and abrupt changes in physical and chemicals conditions of the incubation medium. During embryo development, chorion alterations are not rare, but the
Iván Valdebenito, Elías Figueroa, Matías Valdebenito, Luis Paiva   +3 more
doaj   +1 more source

Does variation in egg structure among five populations of Atlantic salmon (Salmo salar) influence their survival in low oxygen conditions? [PDF]

Royal Society Open Science, 2019
Oxygen supply to the salmonid egg surface can be limited by external factors such as sedimentation and groundwater upwelling, while the egg membrane itself can impede diffusion from the egg surface to the embryo. Therefore, the structure of egg membranes
Jack Bloomer, David Sear, Paul Kemp
doaj   +1 more source

Critical Role of the Cortical Alveolus Protease Alveolin in Chorion Hardening In Vivo at Medaka Fertilization

Biomolecules, 2023
Alveolin is a cortical alveolus proteinase that is secreted in the perivitelline space (PVS) at fertilization to act on the chorion. Purified alveolin is known to induce chorion hardening in vitro by processing zona pellucida B (ZPB), a major chorion ...
Bo Fu, Di Wu, Shigeki Yasumasu, Masaya Hane, Chihiro Sato, Ken Kitajima   +5 more
doaj   +1 more source

Identification of chorion genes and RNA interference-mediated functional characterization of chorion-1 in Plutella xylostella

Journal of Integrative Agriculture, 2022
Choriogenesis is the last step of insect oogenesis, a process by which the chorion polypeptides are produced by the follicular cells and deposited on the surface of oocytes in order to provide a highly specialized protective barrier to the embryo.
Shi-jie DONG, Bo LIU, Ming-min ZOU, Li-li LIU, Min-hui CAO, Meng-qi HUANG, Yan LIU, Liette VASSEUR, Min-sheng YOU, Lu PENG   +9 more
doaj   +1 more source

Amnion and Chorion Allografts in Combination with Coronally Advanced Flap in the Treatment of Gingival Recession: A Clinical Study [PDF]

Journal of Clinical and Diagnostic Research, 2015
Background: Guided tissue regeneration (GTR) based root coverage using different allograft membranes has been utilized to correct gingival recession defects with promising results.
Sonali Chakraborthy, Savita Sambashivaiah, Rithesh Kulal, Shivaprasad Bilchodmath   +3 more
doaj   +1 more source

Ingrown chorionic villi of the first trimester as a result of a non-developing pregnancy in the post-cesarean scar, associated with the development of arteriovenous malformation: а clinical case

Alʹmanah Kliničeskoj Mediciny, 2023
Background: Identification of residual chorionic tissue and ingrowing chorionic villi after uterine cavity curettage due to non-developing pregnancy, spontaneous abortions, and medical abortions has been a poorly studied problem.
Polina V. Kulabukhova, Olga S. Kondrashina, Dmitry M. Akinfiev, Vladimir G. Bychenko   +3 more
doaj   +1 more source

Doppler assessment of throphoblastic blood flow to predict adverse pregnancy outcome

Инновационная медицина Кубани, 2020
Objective. To evaluate the diagnostic utility of trophoblastic blood flow Doppler parameters in predicting an adverse pregnancy outcome.Material and Methods.
A. V. Pomortsev, J. Yu. Dyachenko, M. A. Matosyan   +2 more
doaj   +1 more source

The Preparation and Clinical Efficacy of Amnion-Derived Membranes: A Review

Journal of Functional Biomaterials, 2023
Biological tissues from various anatomical sources have been utilized for tissue transplantation and have developed into an important source of extracellular scaffolding material for regenerative medicine applications.
Alison L. Ingraldi, Robert G. Audet, Aaron J. Tabor   +2 more
doaj   +1 more source

New Insights on the Biomechanics of the Fetal Membrane

Frontiers in Bioscience-Scholar, 2023
During pregnancy, the Fetal Membrane (FM) is subjected to mechanical stretching that may result in preterm labor. The structural integrity of the FM is maintained by its collagenous layer.
Doron Shilo, Eliezer Shalev
doaj   +1 more source