Results 141 to 150 of about 726,910 (390)

Phenylalanine‐Based DNA‐Encoded Chemical Libraries for the Discovery of Potent and Selective Small Organic Ligands Against Markers of Cancer and Immune Cells

open access: yesAdvanced Science, EarlyView.
FM‐DEL1 and FM‐DEL2 are constructed by installing one or two sets of building blocks on a phenylalanine central scaffold. FM‐DELs are screened against markers of prostate, and renal cell carcinoma, and against an immunological target expressed on the surface of natural killer cells.
Francesca Migliorini   +12 more
wiley   +1 more source

Optical Tweezers as an Effective Tool for Spermatozoa Isolation from Mixed Forensic Samples [PDF]

open access: yes, 2019
A single focus optical tweezer is formed when a laser beam is launched through a high numerical aperture immersion objective. This objective focuses the beam down to a diffraction-limited spot, which creates an optical trap where cells suspended in ...
Auka, Nicole   +6 more
core   +4 more sources

Manipulating Unisexual–Sexual Reproduction Transition to Engineer Genome‐Reconstructed Polyploids

open access: yesAdvanced Science, EarlyView.
This study developed an efficient approach to generate genome‐reconstructed polyploids involving unisexual gynogenetic Carassius gibelio, sexual C. auratus, and sexual C. cuvieri. The selected superior clone inherited gynogenesis ability of C. gibelio and herpesvirus resistance of wild C.
Meng Lu   +9 more
wiley   +1 more source

Progesterone significantly enhances the mobility of boar spermatozoa [PDF]

open access: yes, 2013
Progesterone released from the cumulus cells of the oocyte causes a number of physiological responses in human sperm cells including hyperactivation, acrosome reaction and chemotaxis. We employed a validated sperm mobility assay, which involves measuring
Adya, Ashok K.   +6 more
core   +3 more sources

Peptide Hormone‐Mediated Regulation of Plant Development and Environmental Adaptability

open access: yesAdvanced Science, EarlyView.
In this review, recent advances in understanding the roles of plant peptide hormones in regulating growth, reproduction, and environmental adaptability are systematically summarized. It further elucidates the challenges in studying these peptides, such as their low abundance, functional redundancy, and complex signaling mechanisms, and highlights their
Xin Li   +8 more
wiley   +1 more source

Investigation on the Origin of Sperm DNA Fragmentation: Role of Apoptosis, Immaturity and Oxidative Stress

open access: yesMolecular Medicine, 2015
Sperm DNA fragmentation (sDF) represents a threat to male fertility, human reproduction and the health of the offspring. The causes of sDF are still unclear, even if apoptosis, oxidative assault and defects in chromatin maturation are hypothesized. Using
M. Muratori   +7 more
semanticscholar   +1 more source

Ejaculate allocation by male sand martins, Riparia riparia [PDF]

open access: yes, 2001
Males of many species allocate sperm to ejaculates strategically in response to variation in the risk and intensity of sperm competition. The notable exception is passerine birds, in which evidence for strategic allocation is absent.
E. H. Nicholls   +6 more
core   +2 more sources

Banke sperme [PDF]

open access: yes, 2015
Banka sperme (ili kriobanka) je način/mogućnost pohrane sperme čovjeka. Spermu potom koriste žene koje žele postići trudnoću i materinstvo. Dva su glavna razloga zašto se muškarci odluče na pohranu (donaciju) sperme: 1) da bi osigurali reproduktivnu sposobnost kada su suočeni s bolešću koja bi mogla biti smrtonosna ili čije bi liječenje moglo ...
openaire   +1 more source

Comparative Single‐Cell Transcriptomic Landscape Reveals the Regulatory Mechanisms of Lactation during Selective Breeding in Asian Water Buffalo

open access: yesAdvanced Science, EarlyView.
In this study, a comprehensive single‐cell transcriptome atlas of river and swamp buffalo, encompassing 12 tissues and 397,011 cells, is constructed. Differential expression analyses identify metabolic and secretory tissues and cell types that mediate the divergence of milk production.
Dongmei Dai   +13 more
wiley   +1 more source

Sperm selection in natural conception: what can we learn from Mother Nature to improve assisted reproduction outcomes?

open access: yesHuman Reproduction Update, 2015
BACKGROUND In natural conception only a few sperm cells reach the ampulla or the site of fertilization. This population is a selected group of cells since only motile cells can pass through cervical mucus and gain initial entry into the female ...
D. Sakkas   +3 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy