Results 71 to 80 of about 373,852 (297)
Majallah-i Dānishgāh-i ̒Ulūm-i Pizishkī-i Qum, 2021 Background and Objective: Although proper morphology and motility of sperm can be one of the most important factors influencing male fertility, however, these parameters cannot play a decisive role in the health of sperm DNA.
Atefeh Verdi +3 more
doaj
Can Altered Expression of HSPA2 in Varicocele Patients Lead to Abnormal Spermatogenesis? [PDF]
International Journal of Fertility and Sterility, 2010 Background Heat shock protein A2 (HSPA2) is correlated with sperm maturity and function. Therefore, dysfunctional expression of this gene results in abnormal spermatogenesis.
Mohammad Hossein Nasr Esfahani +10 more
doaj +1 more source
FEBS Letters, EarlyView.Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas +3 more
wiley +1 more source
Gapped DNA and Cyclization of Short DNA Fragments [PDF]
Biophysical Journal, 2005 We use the cyclization of small DNA molecules, approximately 200 bp in length, to study conformational properties of DNA fragments with single-stranded gaps. The approach is extremely sensitive to DNA conformational properties and, being complemented by computations, allows a very accurate determination of the fragment's conformational parameters ...
Du, Quan +4 more
openaire +2 more sources
An isoform of 14‐3‐3 protein regulates transbilayer lipid movement at the plasma membrane
FEBS Letters, EarlyView.Loss of 14‐3‐3ζ in CHO cells confers resistance to exogenous phosphatidylserine (PS) and impairs endocytosis‐independent inward flip‐flop of fluorescent PS at the plasma membrane. RNAi‐mediated knockdown reproduces this defect, while no additive effect is seen in ATP11C‐deficient cells.
Akiko Yamaji‐Hasegawa +3 more
wiley +1 more source
Italian Journal of Animal Science, 2010 Ochratoxin A is a mycotoxin responsible for disease states in both humans and animals. OTA mechanisms of action are numerous, including lipid peroxidation. Oxidative damage results in the modification of macromolecules (i.e.
Antonella Baldi +7 more
doaj +1 more source
Constitutively Active Galpha q and Galpha 13 Trigger Apoptosis through Different Pathways [PDF]
, 1997 We investigated the effect of expression of constitutively active Galpha mutants on cell survival. Transfection of constitutively active Galphaq and Galpha13 in two different cell lines caused condensation of genomic DNA and nuclear fragmentation ...
Althoefer, Henning +2 more
core
Testicular cancer and sperm DNA damage: short- and long-term effects of antineoplastic treatment [PDF]
, 2015 The aim of this study was to investigate sperm DNA damage induced by chemo- and radiotherapy in patients with testicular cancer to provide data on the extent and persistence of nuclear damage that might affect individual reproductive potential.
F. Rizzo +7 more
core +1 more source
Reconstructing DNA replication kinetics from small DNA fragments [PDF]
Physical Review E, 2006 In higher organisms, DNA replicates simultaneously from many origins. Recent in vitro experiments have yielded large amounts of data on the state of replication of DNA fragments. From measurements of the time dependence of the average size of replicated and nonreplicated domains, one can estimate the rate of initiation of DNA replication origins, as ...
Haiyang, Zhang, John, Bechhoefer
openaire +2 more sources
AAA+ protein unfoldases—the Moirai of the proteome
FEBS Letters, EarlyView.AAA+ unfoldases are essential molecular motors that power protein degradation and disaggregation. This review integrates recent cryo‐electron microscopy (cryo‐EM) structures and single‐molecule biophysical data to reconcile competing models of substrate translocation.
Stavros Azinas, Marta Carroni
wiley +1 more source