Results 101 to 110 of about 39,103 (266)
A New Era for Using Natural Pigments: The Case of the C50 Carotenoid Called Bacterioruberin
ABSTRACT Haloarchaea are extremophilic microorganisms belonging to the Archaea domain that require high salt concentrations to live, thus inhabiting ecosystems like salty ponds, salty marshes, or extremely salty lagoons. They are more abundant and widely distributed worldwide than initially expected.
Micaela Giani +5 more
wiley +1 more source
Micronutrient supplements as antioxidants in improving sperm quality and reducing DNA fragmentation
Background Spermatogenesis and sperm quality may be negatively impacted by an increase in reactive oxygen species. This study investigates the efficacy of combined antioxidant therapy for treating male infertility, as measured by semen analyses and the ...
Nguyen Dac Nguyen +4 more
doaj +1 more source
Ultrastructure of cytoplasmic fragments in human cleavage stage embryos [PDF]
Purpose: The goal of this study was to evaluate the ultrastructure of cytoplasmic fragments along with the effect of cytoplasmic fragment and perivitelline space coarse granulation removal (cosmetic microsurgery) from embryos before embryo transfer on ...
Esfandiari, N. +6 more
core +1 more source
Sperm DNA fragmentation testing: an evolving frontier [PDF]
The management of patients with male infertility is a complex topic with a vast scope in terms of biological and historical importance. Infertile men have played hugely important roles in world history (Abraham, George Washington, Louis XVI); their treatment has been a focus of interest for not just physicians, but also the religious (fertility priests,
openaire +2 more sources
The impacts of biological invasions
ABSTRACT The Anthropocene is characterised by a continuous human‐mediated reshuffling of the distributions of species globally. Both intentional and unintentional introductions have resulted in numerous species being translocated beyond their native ranges, often leading to their establishment and subsequent spread – a process referred to as biological
Phillip J. Haubrock +42 more
wiley +1 more source
Background and Aim: In recent years, sperm cryopreservation has resulted in significant advances in assisted reproductive techniques (ARTs); and, has showed a crucial potential impact on infertility treatment and increasing success rates of ARTs.
mohammad jafar rezaie +4 more
doaj
Early evolutionary history of the seed
ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman +2 more
wiley +1 more source
Minh Tam Le,1,2 Trung Van Nguyen,1 Thai Thanh Thi Nguyen,1 Hiep Tuyet Thi Nguyen,1 Duong Dinh Le,3 Vu Quoc Huy Nguyen2 1Center for Reproductive Endocrinology and Infertility, Hue University of Medicine and Pharmacy, Hue University, Hue, Vietnam ...
Le MT +5 more
doaj
The role of oxidative stress in male infertility: Connection to sperm telomere shortening and overall DNA damage [PDF]
Male infertility affects approximately 20% of men, with 30-40% of cases being linked to issues in both partners. While sperm production may be normal, DNA damage in spermatozoa can occur and become a primary cause of infertility.
Glišić Biljana +1 more
doaj +1 more source
PEK14: A Kinesin‐4 Necessary for Male‐Derived Fertility in Arabidopsis thaliana
ABSTRACT Of the 61 kinesins annotated in Arabidopsis thaliana, many are still without assigned function. Here, we have screened an insertional mutant library of Arabidopsis pollen‐expressed kinesins for fertility defects. Insertional mutants for three kinesins showed a significant reduction in seed set.
Isabella N. Mendes +6 more
wiley +1 more source

