Cervical cancer is a common cancer in women with high incidence and high mortality. Currently, traditional clinical methods for cervical cancer screening are invasive and the effectiveness of the examination is limited by cost and time. The need to help clinicians with rapid screening and assisted diagnosis of cervical cancer has not been so strong, so there is less research in this area. Commonly used cervical cancer screening methods mainly include cytological examination (Pap examination), human papillomavirus examination (HPV examination), all require instrument invasion, and cell or virus detection takes a certain time. Therefore, recently, the respiratory detection method, because of its high sensitivity, high speed and non-invasiveness, has become a very promising method in the research methods of cancer biomarkers. Recently, the Spectral Mass Spectrometry Laboratory of the Center for Medical Physics and Technology of the Hefei Institute of Material Science, Chinese Academy of Sciences, used this method to detect and compare the exhalation of cervical cancer patients and health workers using a self-developed exhaled mass spectrometer. In this study, a total of 13 cervical cancer patients and 34 female healthy volunteers provided respiration for the experiment. The researchers first performed breath detection by proton transfer reaction mass spectrometry (PTR-MS), followed by Mann-Whitney U test and stepwise Forward linear discriminant analysis for data statistics. On the basis of statistical analysis, the research team found that the four characteristic ions m / z 76, 87, 93 and 121 can be used to identify cervical cancer. They use stepwise discriminant analysis and found that the method is used to determine the true positive rate of cervical cancer and The true negative rate reached 92.3% and 88.2%, respectively. In addition, laboratory researchers have further studied and analyzed the characteristics of characteristic ions. The results show that because of the uncertainty of these characteristic ions, more data is needed (including data from cervical cancer patients and healthy volunteers). Further give an accurate evaluation criteria. However, studies have shown that online respiratory testing using PTR-MS is an effective method for cervical cancer screening. Here, it is worth noting that although the current accuracy of this method has not reached an extremely high level, it can be combined with the AI ​​algorithm. If researchers train and analyze them through big data, it should speed up the popularization and commercialization of this method for the benefit of everyone. Probiotics are a class of active microorganisms that are beneficial to the host by colonizing the human body and changing the composition of the flora in a certain part of the host. By regulating the immune function of the host mucosa and system or by regulating the balance of intestinal flora, promoting nutrient absorption and maintaining intestinal health, resulting in the production of single microorganisms or mixed microorganisms with well-defined composition that are beneficial to health. Probiotics,Probiotic Efficacy,Probiotic vitamins,Probiotic Health Supplements YT(Xi'an) Biochem Co., Ltd. , https://www.ytwholefood.com