Results 101 to 110 of about 15,364,011 (346)
Reconstructing enzyme evolution by protein engineering
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler +2 more
wiley +1 more source
Chicken semen cryopreservation is crucial for utilizing high-quality cockerel genetics, but semen is highly sensitive to cryoinjury, leading to poor preservation outcomes. This study aimed to establish a theoretical foundation for selecting cockerels for
Xue Du +7 more
doaj +1 more source
EXPRESSION OF GLYCOPROTEIN gD AND EVALUATION OF IMMUNE RESPONSE OF BOVINE HERPES VIRUS TYPE-1 IN BUFFALO [PDF]
Bovine Herpes Virus type-1 (BoHV-1) causes a multitude of clinical symptoms in cattle, buffaloes and small ruminants. No effective live attenuated or killed vaccine is currently available and extensive research work in progress towards the development of
Sumit Chowdhury +2 more
doaj
Context Male infertility contributes a lot to the causes of infertility among couples attending Gynaecology clinics in our environment. Objectives: To determine semen quality in male partners of infertile couples attending Gynaecology Clinic in Aminu
Ibrahim SA, Muhammad Z
doaj +1 more source
Engineering peptides into antibodies—opportunities and strategies for therapeutic innovation
Peptides and antibodies occupy complementary therapeutic niches. Peptides recognize difficult targets in a compact format, while antibodies add specificity, long half‐life, and effector functions. This review examines strategies that merge both modalities—peptide grafting into loops, terminal and Fc fusions, and bioconjugation—highlighting how ...
Jinling Wang +2 more
wiley +1 more source
This review focuses on the role of autophagy and mitophagy in maintaining pancreatic β‐cell function and homeostasis. We discuss how genetic defects affecting these pathways contribute to the development of type 1, type 2, monogenic, and gestational diabetes. We further explore their potential as therapeutic targets. Created in BioRender.
Yunkyeong Lee +2 more
wiley +1 more source
The Quality of Frozen Semen Sexing with Percoll Medium and Bovine Serum Albumin (BSA) in Dorper Sheep and Saanen Goat [PDF]
The study aimed to determine the quality of frozen semen sexing with percoll medium and Bovine Serum Albumin (BSA) in Dorper sheep and Saanen goats. The research was designed based on the experimental method, as the main plot is livestock (M) consisting ...
Sumaryadi Mas Y. +5 more
doaj +1 more source
The influence of omega‐3 fatty acids on semen quality markers: a systematic PRISMA review
Infertility affects about 15% of all couples worldwide. Male factors such as decreased semen quality contribute to around 40% of the cases. Recent reviews have shown that different foods and nutrients may improve semen quality.
A-M L Falsig, C. S. Gleerup, U. Knudsen
semanticscholar +1 more source
Anonymous Semen Donation:Medical Treatment or Medical Kinship? [PDF]
Opinion in European countries has been divided over whether people conceived with donated gametes (semen, eggs and embryos) should be able to obtain identifying information about their genetic (donor) parents.
Speirs, Jennifer
core
Male reproductive hormones and semen quality
Male reproductive functions are mediated by different hormones whose orchestrations remain a major research interest. The ‘master’ regulator hormonal axis is the hypothalamo- pituitary-gonadal/testicular axis which is led by the pulsatile release of ...
S. Dutta, P. Sengupta, S. Muhamad
semanticscholar +1 more source

