Results 41 to 50 of about 305,098 (258)

Agrotechnical Biofortification as a Method to Increase Selenium Content in Spring Wheat

Agronomy, 2021
Selenium (Se) is a micronutrient that is insufficiently present in the human diet. Increasing its content in food through appropriately matched agricultural practices may contribute to reducing Se deficit in humans. The study covered the effect of grain,
Aleksandra Radawiec, Wiesław Szulc, Beata Rutkowska   +2 more
doaj   +1 more source

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

Reproductive 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, Kazuya Matsumoto, Yoshihiko Hosoi, Yoshiharu Morimoto   +3 more
doaj   +1 more source

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

, 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

Increased reproductive outcomes after optimized sperm preparation

Frontiers 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, Guillermina M. Luque, Guillermina M. Luque, Natalia Oscoz-Susino, Analía G. Novero, Olinda Briski, Inés Kásparas, Tomás J. Steeman, Cintia Stival, Mariano Lavolpe, Vanina Julianelli, Marisa Geller, Martín Attie, Rita Vassena, Darío Krapf, Darío Krapf, Mariano G. Buffone, Mariano G. Buffone   +17 more
doaj   +1 more source

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

Micromachines, 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, Haoran Liu, Boxuan Zhang, Ran Liu   +3 more
doaj   +1 more source

Round spermatid injection into human oocytes: a systematic review and meta-analysis

Asian Journal of Andrology, 2021
Many azoospermic men do not possess mature spermatozoa at the time of surgical sperm extraction. This study is a systematic review and meta-analysis evaluating outcomes following round spermatid injection (ROSI), a technique which utilizes immature ...
Brent M Hanson, Taylor P Kohn, Alexander W Pastuszak, Richard T Scott Jr, Philip J Cheng, James M Hotaling   +5 more
doaj   +1 more source

Regulated mitochondrial DNA replication during oocyte maturation is essential for successful porcine embryonic development. [PDF]

, 2006
Cellular ATP is mainly generated through mitochondrial oxidative phosphorylation, which is dependent on mitochondrial DNA (mtDNA). We have previously demonstrated the importance of oocyte mtDNA for porcine and human fertilization.
Alexander, Jan, Altieri, Andrea, Barregård, Lars, Bignami, Margherita, Brüschweiler, Beat, Ceccatelli, Sandra, Cottrill, Bruce, Dall'Asta, Chiara, Dinovi, Michael, Edler, Lutz, EFSA Panel on Contaminants in the Food Chain (CONTAM), Eriksen, Gunnar Sundstøl, Grasl-Kraupp, Bettina, Hogstrand, Christer, Hoogenboom, Laurentius (Ron), Knutsen, Helle Katrine, Nebbia, Carlo Stefano, Oswald, Isabelle P., Petersen, Annette, Roldán-Torres, Ruth, Rose, Martin, Roudot, Alain-Claude, Schwerdtle, Tanja, Taranu, Ionelia, Vleminckx, Christiane, Vollmer, Günter, Wallace, Heather   +26 more
core   +6 more sources

Fate of fertilized human oocytes [PDF]

Reproductive BioMedicine Online, 2010
Establishing the proportion of fertilized oocytes and early human embryos that proceed to term may help policy makers in their evaluation of when the life of a new human individual begins and in determining the nature of protection to be accorded to it.
Giuseppe, Benagiano, Manuela, Farris, Gedis, Grudzinskas   +2 more
openaire   +2 more sources

Biosynthesis and expression of zona pellucida glycoproteins in mammals [PDF]

, 2001
The zona pellucida (ZP) is an extracellular matrix surrounding the oocyte and the early embryo that exerts several important functions during fertilization and early embryonic development.
Kölle, S., Sinowatz, Fred, Töpfer-Petersen, E.   +2 more
core   +1 more source

Pollen tube contents from failed fertilization contribute to seed coat initiation in Arabidopsis [version 1; peer review: 2 approved, 1 approved with reservations]

F1000Research, 2019
Plant seeds are essential for human beings, constituting 70% of carbohydrate resources worldwide; examples include rice, wheat, and corn. In angiosperms, fertilization of the egg by a sperm cell is required for seed formation; therefore, fertilization ...
Xiaoyan Liu, Parakash Babu Adhikari, Ryushiro D. Kasahara   +2 more
doaj   +1 more source