Results 41 to 50 of about 378,917 (194)

In vitro cultivation of rat bone marrow mesenchymal stem cells and establishment of pEGFP/Ang-1 transfection method

open access: yesAsian Pacific Journal of Tropical Biomedicine, 2014
Objective: To obtain the bone marrow mesenchymal stem cells (BMSCs), complete phenotypic identification and successfully transfect rat BMSCs by recombinant plasmid pEGFP/Ang-1.
Xiu-Qun Zhang   +3 more
doaj   +1 more source

Distinct Intracellular Compartments Involved in Invariant Chain Degradation and Antigenic Peptide Loading of Major Histocompatibility Complex (MHC) Class II Molecules [PDF]

open access: yes, 1997
Major histocompatibility complex (MHC) class II molecules are transported to intracellular MHC class II compartments via a transient association with the invariant chain (Ii).
Ferrari, G.   +3 more
core   +1 more source

Motility fractionation of bacteria by centrifugation

open access: yes, 2013
Centrifugation is a widespread laboratory technique used to separate mixtures into fractions characterized by a specific size, weight or density. We demonstrate that centrifugation can be also used to separate swimming cells having different motility. To
Di Leonardo, Roberto   +4 more
core   +1 more source

Minimal Information About Sample Preparation for Phosphoproteomics [PDF]

open access: yes, 2009
This guideline describes parameters and conditions involved in phosphopeptide sample preparation. It covers from the description and preparation of the cells and tissues to the fractionation and specific enrichment of phosphopeptides for MS analysis. The
David Ovelleiro   +3 more
core   +2 more sources

Elimination of bacteria from semen using a combination of density gradient centrifugation and swim-up

open access: yesJournal of Men's Health, 2022
Background: To evaluate the efficiency of bacterial clearance of different sperm preparation procedure. Methods: A total of 46 semen samples were collected in this study, each semen sample was divided into four equal parts (0.5 mL each).
Zhiheng Chen   +6 more
doaj   +1 more source

Sorting and transmission electron microscopy analysis of single or double wall carbon nanotubes [PDF]

open access: yes, 2009
On the basis of the recent progress on the sorting of carbon nanotubes’ structure with respect to their diameter or number of walls, we investigate by transmission electron microscopy the sorting efficiency, with a comparison with optical absorption ...
Arnold   +14 more
core   +2 more sources

Timing of semen cryopreservation: before or after processing? [PDF]

open access: yesRevista Brasileira de Ginecologia e ObstetrĂ­cia
Objective: Seminal cryopreservation causes significant damage to the sperm; therefore, different methods of cryopreservation have been studied. The aim of the study was to compare the effects of density gradient processing and washing/centrifugation with
Ana Paula de Souza Kussler   +4 more
doaj   +1 more source

Nuclear translocation and signalling of L1-CAM in human carcinoma cells requires ADAM10 and presenilin/gamma-secretase activity [PDF]

open access: yes, 2009
L1-CAM (L1 cell-adhesion molecule), or more simply L1, plays an important role in the progression of human carcinoma. Overexpression promotes tumour-cell invasion and motility, growth in nude mice and tumour metastasis.
Altevogt, Peter   +6 more
core   +2 more sources

Comparative proteomic analysis of spermatozoa isolated by swim-up or density gradient centrifugation [PDF]

open access: yes, 2015
BACKGROUND: Reports about the morphologic and functional characteristics of spermatozoa prepared by density gradient centrifugation (DC) or swim-up (SU) have produced discordant results.
A Ashrafzadeh   +56 more
core   +2 more sources

Novel Bacterial Diversity and Fragmented eDNA Identified in Hyperbiofilm-Forming Pseudomonas aeruginosa Rugose Small Colony Variant [PDF]

open access: yes, 2020
Pseudomonas aeruginosa biofilms represent a major threat to health care. Rugose small colony variants (RSCV) of P. aeruginosa, isolated from chronic infections, display hyperbiofilm phenotype.
Deng, Binbin   +10 more
core   +1 more source

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