DNA Purification

DNA purification, DNA extraction and DNA isolation are terms that are often used for the same processes. While DNA isolation aims to get as much of the DNA out of your sample as possible, DNA purification is done to reduce - or even eliminate - the contamination of the isolated DNA. Extraction is just one specific way to achieve isolation and purification. DNA extraction uses a solvent that serves as extractant and can be divided in above stages.

All three terms are often used for the same process which normally combines the DNA isolation and DNA purifcation.

Here at ZAGENO we realized how difficult it is to find the right DNA Purification Kit, DNA Extraction Kit, DNA Isolation Kit or DNA testing Kit. First of all one needs to define what type of DNA is to be extracted. Depending on the specific target ,a huge number of DNA test kits from many different suppliers exist:

• Plasmid DNA
• Genomic DNA
• Viral DNA
• cDNA

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Source: zageno

Loneliness, Isolation Enhance CHD and Stroke Risk

YORK, UK — Although past research has shown a link between impaired social relationships and premature mortality, a new meta-analysis suggests there may also be a significant association with increased risk for coronary heart disease (CHD) and stroke.

The review of 23 papers and 181,006 total patients showed a 29% increased risk for incident CHD for those who had poor social connections, shown through loneliness and social isolation measurements, compared with those with better connections. The lonely and isolated patients also had a 32% increased risk for stroke.

The investigators, led by Dr Nicole K Valtorta (University of York, UK), note that loneliness often contributes to impaired coping methods, isolation affects self-efficacy, and both have been associated with decreased physical activity and increased smoking.

They add that future studies are needed to assess whether targeting these social characteristics "can help to prevent two of the leading causes of death and disability in high-income countries." But for now, "health practitioners have an important role to play in acknowledging the importance of social relations to their patients."

Read more: Loneliness, Isolation Enhance CHD and Stroke Risk

Source: trinesty