Helicobacter pylori (Hp) can cause a variety of gastric diseases and has a high infection rate. With the widespread use of antibiotics and the influence of geographical, strain and host differences, the failure rate of Hp eradication and reinfection rate are increasing. Therefore, there is a need for individualized precision treatment of refractory Hp infection. This article reviewed the progress of clinical research on individualized precision treatment of Hp infection.

Objective To analyze the expression change of PTGFR gene in hip joint tissues of development dysplasia of the hip (DDH) and its correlation with DDH pathogenesis .Methods Eight age-and gender-matched children with DDH (DDH group) and control children (control group) were enrolled for conducting the compaison .The real-time quantitative PCR method and West-ern-blot method were adopted to detect the PTGFR mRNA and protein expression levels .Results PTGFR mRNA expression level in the hip articular capsule and ligamentum teres of the DDH group were significantly decreased compared with those of the control group (t=3 .472 ,2 .887 ,P<0 .05 ,) .The PTGFR protein expression level in the hip articular capsule and ligamentum teres of the DDH group were significantly decreased compared with those of the control group (t=5 .488 ,3 .942 ,P<0 .05) .Conclusion PTG-FR could play an important role in DDH pathogenesis and may be one of DDH pathogenic genes .

Liposomes, as one of the most successful nanotherapeutics, have a major impact on many biomedical areas. In this study, we performed laser scanning confocal microscope (LSCM) and immunohistochemistry (IHC) assays to investigate the intra-tumor transport and antitumor mechanism of GE11 peptide-conjugated active targeting liposomes (GE11-TLs) in SMMC7721 xenograft model. According to classification of individual cell types in high resolution images, biodistribution of macrophages, tumor cells, cells with high epidermal growth factor receptor (EGFR) expression and interstitial matrix in tumor microenvironment, in addition, their impacts on intra-tumor penetration of GE11-TLs were estimated. Type I collagen fibers and macrophage flooded in the whole SMMC7721 tumor xenografts. Tumor angiogenesis was of great heterogeneity from the periphery to the center region. However, the receptor-binding site barriers were supposed to be the leading cause of poor penetration of GE11-TLs. We anticipate these images can give a deep reconsideration for rational design of target nanoparticles for overcoming biological barriers to drug delivery.

In recent years， with the gradual maturity of achievable remote collection of digital health technology， more and more clinical research have applied this technology to improve the quality of data collection and reduce the burden on subjects. However， its technological characteristics of detachment from the diagnostic and treatment environment and real-time transmission of sensitive information also pose corresponding risks to the protection of subjects’ rights and interests and data standardization management， among which personal information protection and data control permissions are more prominent issues. Based on risk analysis and regulatory review， this paper explored the responsibilities of multiple parties， including the sponsors， researchers， clinical trial institutions， and ethics committee， as well as proposed five elements of special concern for ethical review， with a view to providing a reference for promoting the standardized development of digital health technology in clinical research.

Background: Antibiotic resistance of Helicobacter pylori (Hp) is an important cause of failure of eradication treatment, the latest national and international consensus have recommended a quadruple regimen based on the use of amoxicillin or tetracycline as the first-line treatment for Hp eradication. Minocycline is a semi-synthetic tetracycline easily available clinically and has a low secondary resistance rate, and can be used in penicillin-allergic patients. Aims: To investigate the efficacy and safety of regimen with minocycline combined with metronidazole, rabeprazole and bismuth potassium citrate for eradication of Hp infection. Methods: Patients with Hp infection from August 2020 to January 2021 at Jiangqiao Hospital in Jiading District having the primary treatment for Hp eradication were selected. All the enrolled patients received rabeprazole enteric-coated tablets 10 mg bid + minocycline capsules 100 mg bid + metronidazole tablets 400 mg tid + bismuth potassium citrate capsules 220 mg bid for 14 days. Symptoms and adverse reactions during treatment were recorded. The eradication of Hp was determined by

From the perspective of medical institutions, this paper sorted out the background of the promulgation and important changes of Measures for Ethical Review of Life Science and Medical Research Involving Humans, and summarized the changes that may significantly affect the ethical review of medical institutions. It involved terminology changes and expansion of the scope of ethic review, clarification of the responsibilities and independence of the ethics committee, the refinement of the ethical review process, the emphasis on the protection of personal information and the rights and interests of subjects, and first proposal to exempt from ethical review. In addition, based on the concept of strengthening the ethical governance of science and technology in the new version of regulations, this paper shared the consideration on the governance of ethical review within medical institutions, including safeguarding the dignity and rights of subject, clarifying the role and position of ethical review, exempting the implementation of ethical review, and managing entrusted ethical review. With a view to providing a certain reference for the ethics practitioners and researchers in various medical institutions.

Ischemic stroke presents a leading cause of mortality and morbidity worldwide. Theaflavic acid (TFA) is a theaflavin isolated from black tea that exerts a potentially neuro-protective effect. However, the dynamic properties of TFA-mediated protection remain largely unknown. In the current study, we evaluated the function of TFA in the mitochondria apoptotic pathway using mathematical modeling. We found that TFA-enhanced B-cell lymphoma 2 (Bcl-2) overexpression can theoretically give rise to bistability. The bistability is highly robust against parametric stochasticity while also conferring considerable variability in survival threshold. Stochastic simulations faithfully match the TFA dose response pattern seen in experimental studies. In addition, we identified a dose- and time-dependent synergy between TFA and nimodipine, a clinically used neuro-protective drug. This synergistic effect was enhanced by bistability independent of temporal factors. Precise application of pulsed doses of TFA can also promote survival compared with sustained TFA treatment. These data collectively demonstrate that TFA treatment can give rise to bistability and that synergy between TFA and nimodipine may offer a promising strategy for developing therapeutic neuro-protection against ischemic stroke.

From the perspective of medical institutions, this paper sorted out the contents of Article 32 of the Measures for Ethical Review of Life Sciences and Medical Research Involving Human regarding "exemption from ethical review". At the same time, combined with domestic and foreign regulations, this paper deeply considered and analyzed the applicable premise and special circumstances of the provisions from the implementation level, and then put forward suggestions from the perspective of practical operation of medical institutions, with a view to providing some practical guidance and reference for ethical practitioners of medical institutions.