Intended Use:|PCR-Fluorescence Probe||Gene Name:|ALDH2 gene *1 and *2 gene variants||Product Usage:|This kit is used to qualitatively detect the gene polymorphism of ALDH2 gene 1510G>A in EDTA anticoagulated venous whole blood sample in vitro and can be used to screen population alcohol metabolism ability and guide nitroglycerin medication.|  |Features and Advantages:|1. High Specificity: The use of Taqman-MGB probe method, effectively enhance the genotyping specificity.|2. High Accuracy: Paraffin sealed sample, the whole process is carried out in a closed tube with beta-actin internal control system that effectively prevents product contamination and false negatives.|3. High Sensitivity: accurate genotyping of CYP2C19 down to 1ng/μl in DNA samples.|4. Simplicity and Fastness: the kit is simple and easy to operate, the detection cycle is short (1.5 hours), and the result is reliable.||Product Specifications:|Tests/Kit\tPackaging|12\t\t8 PCR reaction tubes ||Sample Type:        |EDTA anticoagulant venous whole blood sample.||Applicable Instrument Model:        |- AB 7500 and AB 7900 fluorescent quantitative PCR instrument.          |- SLAN-48P and SLAN-96P fluorescence quantitative PCR instrument.||Background:|Nitroglycerin/Alcohol ability Guidance:|Human aldehyde dehydrogenase (ALDH) is a quadruplex protein that catalyzes the acetaldehyde and other aliphatic aldehyde oxidation. So far, 19 kinds of ALDH isozymes have been found. There are mainly four kinds of ALDH1-4, of which ALDH2 is the most important with a high expression in the liver and stomach, and is one of the key enzymes in the human body's ethanol metabolism. Human ALDH2 gene main polymorphism is the single base 1510G> A located at the 12th exon. The wild type with catalytic activity is called G allele (ALDH2*1). The mutant type with catalytic inactivation is called A allele (ALDH2*2). ALDH2 *2 is the most frequent and the most important mutation for example in Chinese population.| |ALDH2 and nitroglycerin treatment:|Nitroglycerin is a classic drug for the treatment of angina pectoris. Its vasodilation effect is that ALDH acts as a catalyst for the production of nitric oxide (NO) by nitroglycerin. However, the clinical efficacy of this drug varies from one person to another. Some patients having sublingual nitroglycerin cannot quickly and effectively relieve angina pectoris, causing severe myocardial ischemia. The study found that ALDH gene polymorphism caused by the ALDH2*1 genotype of patients under nitroglycerin treatment of angina pectoris was significantly better than ALDH2*2 patients. The rate of inefficiency in ALDH2*2 mutant patients was 42.4%, about 3 times as much as ALDH2*1. Therefore, the dosage and frequency of nitroglycerin in patients with mutant ALDH2*2 should be increased, and the period of medication should be prolonged correspondingly.| |ALDH2 and alcoholic diseases:|Human aldehyde dehydrogenase (ALDH) and alcohol dehydrogenase (ADH) together form the human alcohol dehydrogenase system, responsible for the human body alcohol catalytic metabolism. The study found that the presence of mutant gene ALDH2*2 can lead to severe loss of ALDH2 activity, and is strongly related to alcohol dependence, alcohol intoxication, alcohol liver disease (ALD) and gastrointestinal cancer. ALDH2*2 carriers heavy drinking will significantly increase the risk of liver cancer. The probability of liver cancer, esophageal cancer and oral cancer is 3 times, 12.95 times and 11.72 times respectively more than that of ALDH2*1 wild population.  ALDH2*2 mutation is one of the important factors in cancer risk increase.||Storage and Stability:|Store powder at 4°C liquid at -20°C. Store other components at 4°C. Stable for 6 months For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.

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