Results 81 to 90 of about 57,341 (305)
In-vitro application of pentoxifylline preserved ultrastructure of spermatozoa after vitrification in asthenozoospermic patients [PDF]
, 2017 PURPOSE: To evaluate the effect of in vitro application of pentoxifylline (PX) on sperm parameters and ultrastructure after vitrification in asthenozoospermic patients. MATERIALS AND METHODS: A total of 30 asthenozoospermic semen samples (aged 25-45
Khalili, Ma +7 more
core
Journal of Comparative Physiology □ B, 2018 Cope’s gray treefrog (Dryophytes chrysoscelis) is one of few freeze-tolerant frogs that mobilize glycerol as a cryoprotectant, yet cold and freezing-induced accumulation of this and other osmolytes has received little attention in this species.
M. C. F. do Amaral +3 more
semanticscholar +1 more source
Molecular Chain Elongation Mechanism for n‐Caproate Biosynthesis by Megasphaera Hexanoica
Advanced Science, EarlyView.The medium‐chain carboxylate‐producing microbe Megasphaera hexanoica is analyzed through genomics, transcriptomics, and metabolic engineering. The n‐caproate biosynthetic pathway is reconstructed in Escherichia coli, highlighting MhTHL as a key β‐ketothiolase. Structural analysis and mutagenesis reveal that MhTHL has a distinct substrate‐binding pocket,
Byoung Seung Jeon +8 more
wiley +1 more source
Optimization of the process of cryopreservation of reproductive cells in male pikeperch, Sander lucioperca [PDF]
Caspian Journal of Environmental SciencesThe process for cryopreservation of pikeperch sperm was studied as part of the research. The purpose of these studies is to study the effect of different concentrations of DMSO cryoprotectant during cryopreservation of pikeperch sperm on sperm quality ...
Ainur S. Assylbekova +6 more
doaj +1 more source
Comparison of different cryoprotective agents on swamp buffalo semen cryopreservation
Journal of the Indonesian Tropical Animal Agriculture, 2020 Present study aimed to determine the effectivenessof dimethylformamide (DMF)as cryoprotective agent (CPA) by determining its optimum concentration inTris Eggyolk (TEY) extender on the quality of post-thaw swamp buffalo semen. Only ejaculates having > 60%
M. T. Herbowo +3 more
doaj +1 more source
Methods of Cryoprotectant Preservation: Allogeneic Cellular Bone Grafts and Potential Effects
BioMed Research International, 2019 Debridement of the bone surface during a surgical fusion procedure initiates an injury response promoting a healing cascade of molecular mediators released over time.
W. Martin +3 more
semanticscholar +1 more source
Advanced Science, EarlyView.A gravity‐independent filamented light (G‐FLight) projection method is presented for rapid biofabrication of anisotropic tissues, demonstrated with muscle constructs as a target application. Specialized photocrosslinkable resins enable refrigeration or cryopreservation with encapsulated cells.
Michael Winkelbauer +13 more
wiley +1 more source
Optimization of Sperm Cryopreservation Protocol for Peregrine Falcon (Falco peregrinus)
Animals, 2020 Sperm cryopreservation is a complex process that needs to be adapted to wild and domestic avian species to ensure proper efficiency. Because of its accessibility, the peregrine falcon may be used as a good model for studying other raptor species. To find
Beatriz Cardoso +9 more
doaj +1 more source
Insights Into the Carboxyltransferase Reaction of Pyruvate Carboxylase From the Structures of Bound Product and Intermediate Analogs [PDF]
, 2013 Pyruvate carboxylase (PC) is a biotin-dependent enzyme that catalyzes the MgATP- and bicarbonate-dependent carboxylation of pyruvate to oxaloacetate, an important anaplerotic reaction in central metabolism.
Lietzan, Adam D., Maurice, Martin St.
core +2 more sources
The Anatomical Record, EarlyView.Abstract Autonomic nerves are crucial in cardiac function and pathology. However, data on the distribution of cholinergic and noradrenergic nerves in normal and pathologic human hearts is lacking. Nonfailing donor hearts were pressure‐perfusion fixed, imaged, and dissected. Left ventricular cardiomyopathy samples were also obtained.
Peter Hanna +16 more
wiley +1 more source