Results 121 to 130 of about 5,523,474 (277)

High-resolution three-dimensional views of membrane-associated clathrin and cytoskeleton in critical-point-dried macrophages. [PDF]

open access: yes, 1983
We obtained high-resolution topographical information about the distribution of clathrin and cytoskeletal filaments on cytoplasmic membrane surfaces of macrophages spreading onto glass coverslips by both critical-point drying of broken-open cells and ...
Aggeler, J, Takemura, R, Werb, Z
core   +1 more source

Engineered nanoparticles potentials in male reproduction

open access: yesAndrology, Volume 13, Issue 4, Page 694-705, May 2025.
Abstract Background The escalating prevalence of fertility problems in the aging population necessitates a comprehensive exploration of contributing factors, extending beyond environmental concerns, work‐related stress, and unhealthy lifestyles. Among these, the rising incidence of testicular disorders emerges as a pivotal determinant of fertility ...
Feifei Zhao   +8 more
wiley   +1 more source

Identification of two mutation sites in spike and envelope proteins mediating optimal cellular infection of porcine epidemic diarrhea virus from different pathways

open access: yesVeterinary Research, 2017
Entry of the α-coronavirus porcine epidemic diarrhea virus (PEDV) requires specific proteases to activate spike (S) protein for the membrane fusion of the virion to the host cell following receptor binding. Herein, PEDV isolate 85-7 could proliferate and
Min Sun   +5 more
doaj   +1 more source

Hsp27 anti-sense oligonucleotides sensitize the microtubular cytoskeleton of Chinese hamster ovary cells grown at low pH to 42 degrees C-induced reorganization [PDF]

open access: yes, 2004
Chinese hamster ovary (CHO) cells maintained in vitro at pH 6.7 were used to model cells in the acidic environment of tumours. CHO cells grown at pH 6.7 develop thermotolerance during 42 degrees C heating at pH 6.7 and their cytoskeletal systems are ...
Coss, Ronald A.   +5 more
core   +1 more source

Constitutive-law Modeling of Microfilaments from their Discrete-Structure Simulations - A Method based on an Inverse Approach Applied to a Static Rod Model [PDF]

open access: yesarXiv, 2010
Twisting and bending deformations are crucial to the biological functions of microfilaments such as DNA molecules. Although continuum-rod models have emerged as efficient tools to describe the nonlinear dynamics of these deformations, a major roadblock in the continuum-mechanics-based description of microfilaments is the accurate modeling of the ...
arxiv  

Ultrastructural Insights Into a Candidatus Parilichlamydia sp. Infection of Gill Goblet Cells in Greater Amberjack

open access: yesJournal of Fish Diseases, EarlyView.
ABSTRACT Despite recent genomic studies and increased molecular data, epitheliocystis remains an enigmatic fish disease with no experimental in vitro or in vivo models to aid the advancement of research. In this study, we revert to a classical microscopical approach and screen with the electron microscope the epitheliocystis lesions caused by a Ca ...
Maria Chiara Cascarano   +2 more
wiley   +1 more source

Tetratricopeptide repeat domain 9A is an interacting protein for tropomyosin Tm5NM-1

open access: yesBMC Cancer, 2008
Background Tetratricopeptide repeat domain 9A (TTC9A) protein is a recently identified protein which contains three tetratricopeptide repeats (TPRs) on its C-terminus.
Ho Gay, Cao Shenglan, Lin Valerie CL
doaj   +1 more source

Evolutionary Biology: Microsporidia Sex — A Missing Link to Fungi [PDF]

open access: yes, 2008
SummaryThe evolutionary origins of the microsporidia, a group of intracellular eukaryotic pathogens, have been unclear. Genome analysis of a sex locus and other gene clusters has now revealed conserved synteny with zygomycete fungi, indicating that ...
Dyer, Paul S.
core   +1 more source

Perfluorooctanesulfonate (PFOS)-induced Sertoli cell injury through a disruption of F-actin and microtubule organization is mediated by Akt1/2

open access: yesScientific Reports, 2017
PFOS (perfluorooctanesulfonate, or perfluorooctane sulfonic acid) is an anthropogenic fluorosurfactant widely used in consumer products. While its use in Europe, Canada and the U.S.
Ying Gao   +6 more
doaj   +1 more source

Effect of transformation by Rous sarcoma virus on the character and distribution of actin in Rat-1 fibroblasts: a biochemical and microscopical study. [PDF]

open access: yes, 1986
Actin has been measured in subcellular fractions from Rat-1 fibroblasts and in Rous sarcoma virus-transformed Rat-1 cells (VIT), using the DNase 1 inhibition assay.
Crawford, N.   +3 more
core   +2 more sources

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