Fusion of cells is an important and common biological process that leads to the mixing of cellular contents and the formation of multinuclear cells. Cell fusion occurs when distinct membranes are brought into proximity of one another and merge to become one. Fusion holds promise for biotechnological innovations, for instance, for the discovery of urgently needed new antibiotics.
View Article and Find Full Text PDFBackground: The adoption of appropriate health behaviors can prevent the recurrence of stroke. Previous research found a downward trend in hypertensive stroke patients' health behaviors from 3 to 6 months after discharge. The provision of appropriate support by chronic illness resources has been shown to predict patients' engagement in appropriate health behaviors in other chronic illness populations.
View Article and Find Full Text PDFMagnetic-activated cell sorting (MACS) is an affinity-based technique used to separate cells according to the presence of specific markers. Current MACS systems generally require an antigen to be expressed at the cell surface; these antigen-presenting cells subsequently interact with antibody-labeled magnetic particles, facilitating separation. Here, we present an alternative MACS method based on coiled-coil peptide interactions.
View Article and Find Full Text PDFBackground: The health behaviors and blood pressure control of patients with hypertension who have had a stroke are unsatisfactory. A protocol of a comprehensive reminder system has been published, and the results of 3 months of implementation have demonstrated improved patient health behaviors and blood pressure control. The continuity of the intervention effect on these variables after 3 months was not clear.
View Article and Find Full Text PDFIt is found that G-quadruplexes have important functions in biological systems, such as gene expression. Molecules which can stabilize the G-quadruplex structure may have potential application in regulating the expression of gene. A series of methylazacalix[n]pyridine (n=4, 6, 7, 8, 9) has been tested to stabilize the intermolecular human telomeric G-quadruplex (T12 and H12), intramolecular TBA, c-kit and bcl-2 G-quadruplex by CD denaturation experiments.
View Article and Find Full Text PDFNucleic acid based molecular device is a developing research field which attracts great interests in material for building machinelike nanodevices. G-quadruplex, as a new type of DNA secondary structures, can be harnessed to construct molecular device owing to its rich structural polymorphism. Herein, we developed a switching system based on G-quadruplexes and methylazacalix[6]pyridine (MACP6).
View Article and Find Full Text PDFZhonghua Yi Xue Yi Chuan Xue Za Zhi
April 2012
Objective: To investigate the prevalence and subtypes of microdeletions in azoospermia factor (AZF) region in infertile men from Sichuan in order to correlate genotypes with phenotypes.
Methods: Multiplex-PCR was used to detect sequence tagged sites (STS) of AZF microdeletions in 1011 infertile men including 713 cases of non-obstructive azoospermia and 298 cases of severe oligospermia.
Results: The overall prevalence of microdeletions was 10.
Objective: To analyze the benzoic acid content in the Radix Paeoniae Alba treated by three kinds of process.
Methods: After harvesting, the fresh roots were processed as follows: stored in low temperature, dried after boiling a few minutes and dried immediately. Then the content of benzoic acid was determined by UV spectrophotometry.