Search Results for "Repeated Cycle Of Freez And Thaw"

19:51 EDT 24th October 2014 | BioPortfolio

Original Source: Repeated freeze-thaw cycles reduce the survival rate of osteocytes in bone-tendon constructs without affecting the mechanical properties of tendons.

Frozen bone-patellar tendon bone allografts are useful in anterior cruciate ligament reconstruction as the freezing procedure kills tissue cells, thereby reducing immunogenicity of the grafts. However, a small portion of cells in human femoral heads treated by standard bone-bank freezing procedures survive, thus limiting the effectiveness of allografts. Here, we characterized the survival rates and mechanisms of cells isolated from rat bones and tendons that were subjected to freeze-thaw treatments, and eva...

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The Effect of Freeze/Thaw Cycles on Reproducibility of Metabolic Profiling of Marine Microalgal Extracts Using Direct Infusion High-Resolution Mass Spectrometry (HR-MS).

During normal sample preparation, storage in freezers and subsequent freeze/thaw cycles are commonly introduced. The effect of freeze/thaw cycles on the metabolic profiling of microalgal extracts usin...

A procedure for the in vivo determination of enzyme activity in higher plant tissue.

Rapid freezing of higher plant tissue in liquid nitrogen renders the cells permeable to a wide range of substrate molecules. Tissue permeabilized by repeated freeze-thaw treatment can be used for the ...

Repeated ovarian stimulation does not affect the expression level of proteins involved in cell cycle control in mouse ovaries and fallopian tubes.

To understand if repeated cycles (2-4 rounds) of gonadotropin stimulation could affect intracellular localization/content of proteins controlling cell cycle progression in mouse fallopian tubes (FT) a...

Demonstration of a frozen sample aliquotter to prepare plasma and serum aliquots without thawing frozen parent samples.

Human biospecimens represent invaluable resources to advance molecular medicine, epidemiology, and biomarker discovery/validation, among other biomedical research. Biobanks typically cryopreserve bios...

Comparison of VO2 Peak during Treadmill and Cycle Ergometry in Severely Overweight Youth.

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