Hypertensive donor kidneys have become a major source for kidney transplantation in China. Due to the complication of chronic kidney lesions, such organs are usually classified as marginal grafts. At present, the lack of accurate and non-invasive methods for evaluating donor kidney quality leads to a high discard rate of such kidneys, which further exacerbates the problem of organ shortage. Exosomes are extracellular vesicles that are rich in cell-specific proteins, nucleic acids, lipids and other substances. They participate in intercellular signal transmission and have good stability in circulation and tissue fluid, making them promising novel biomarkers for evaluating renal injury. Therefore, this article reviews the application status and challenges of hypertensive donor kidneys, analyzes the advantages and limitations of existing evaluation methods, and discusses the application value of exosomes in hypertensive renal injury and donor kidney quality evaluation from the perspectives of proteomics and transcriptomics. The aim is to find an early, non-invasive and accurate method for donor kidney quality evaluation, reduce the discard rate of donor kidneys, improve the efficacy of clinical transplantation, and optimize the clinical application strategy of hypertensive donor kidneys.

Kidney transplant recipient (KTR) faces significant challenges in long-term survival, with the incidence of post-transplant malignancies being 2 to 3 times higher than that of the general population, making it the second leading cause of death in KTR. Immune checkpoint inhibitors (ICI) represent an important breakthrough in malignancy treatment, significantly improving the prognosis of some malignancy patients by blocking co-inhibitory signaling molecules and activating T lymphocyte activity. However, due to concerns about the risk of rejection, solid organ transplant recipients, including KTR, are usually excluded from ICI clinical trials. Existing evidence shows that the incidence of rejection during ICI treatment can be as high as 40%-50%, with the specific mechanisms not yet clear. Therefore, how to enable KTR to effectively benefit from the anti-tumor effects of ICI while avoiding rejection is crucial. This article focuses on the core contradiction of ICI in the treatment of post-transplant malignancies in KTR, that is, the dual effects of activating anti-tumor immunity and inducing transplant kidney rejection. It systematically reviews the current clinical application status and challenges, and explores optimization strategies for the delicate balance between restoring anti-tumor immunity and triggering rejection.

Respiratory syncytial virus(RSV)and the acute respiratory infections it induced have become a global key public health issue.However,the existing antiviral drugs are insufficient and have limitations such as drug resistance,limited applicability,and high toxic side effects,which urgently require the development of new therapeutic methods and drugs.As an important part of traditional medicine,traditional Chinese medicine(TCM)and its compound preparations have rich clinical accumulation and potential advantages in the field of antiviral therapy.Their unique targets and multi-link synergistic effects are highly compatible with the complex patho-genic network of RSV.The article aims to describe the infection pathway and key targets of RSV,summarize the progress and shortcom-ings of existing therapeutic methods,and systematically analyze the regulatory mechanism and drug potential of TCM and its compound preparations on different stages of viral infection,so as to provide reference for improving the prevention and control capabilities and de-veloping new antiviral drugs in China.

Respiratory syncytial virus(RSV)and the acute respiratory infections it induced have become a global key public health issue.However,the existing antiviral drugs are insufficient and have limitations such as drug resistance,limited applicability,and high toxic side effects,which urgently require the development of new therapeutic methods and drugs.As an important part of traditional medicine,traditional Chinese medicine(TCM)and its compound preparations have rich clinical accumulation and potential advantages in the field of antiviral therapy.Their unique targets and multi-link synergistic effects are highly compatible with the complex patho-genic network of RSV.The article aims to describe the infection pathway and key targets of RSV,summarize the progress and shortcom-ings of existing therapeutic methods,and systematically analyze the regulatory mechanism and drug potential of TCM and its compound preparations on different stages of viral infection,so as to provide reference for improving the prevention and control capabilities and de-veloping new antiviral drugs in China.

MSM are a high-risk population for HPV infection and related diseases. MSM can be effectively protected by quadrivalent and nine-valent HPV vaccines. This paper outlines the significance of providing HPV vaccination to MSM, summarizes the basis of HPV vaccination in MSM, and puts forward the following recommendations. First, China should expedite the development and approval of the HPV vaccine for male use. Second, HIV-positive MSM should vaccinate against HPV as soon as possible. Third, prioritize HPV vaccination for MSM individuals aged 26 or less. Fourth, for MSM aged over 26, catch-up vaccination or opportunistic vaccination should be provided when HPV vaccine resources are sufficient. Implementing this vaccination strategy can provide protection for the MSM and control the spread of sexually transmitted diseases.

Objectives:To explore the HIV prevalence and related factors among MSM aged 50 and above and provide evidence on the prevention and control of HIV/AIDS.Methods:Based on an MSM social application software Blued 7.1.6, we recruited participants through online convenience sampling to collect demographic variables, behavioral and self-reported HIV infection status, etc. Univariate χ2 test and multivariate logistic regression were used to analyze the related factors of self-reported HIV infection. Results:Self-reported HIV infection rate was 17.6%(126/714) among the participants. In multivariable analysis, participants who got divorced or widowed had a 2.07(95% CI: 1.34-3.21) times greater risk of self-reported HIV-positive than those who were married. Participants unaware of HIV-related knowledge showed a 1.92(95% CI:1.21-3.04) times greater risk of self-reported HIV-positive than those with better HIV-related knowledge. Participants who have ever been diagnosed with sexually transmitted disease (STD) showed a 3.17(95% CI:2.09-4.83) times greater risk of self-reported HIV-positive than those without STD infection history. Conclusion:Our findings indicated that the self-reported HIV infection rate was high among MSM aged 50 and above. Being divorced or widowed, being unaware of HIV-related knowledge and STD infection history was proved related with self-reported HIV infection.

Background: Despite strengthened efforts on human immunodeficiency virus (HIV) prevention and control, new HIV infections continue to increase among men who have sex with men (MSM) in China. Pre-exposure prophylaxis (PrEP), a highly effective HIV-prevention tool, has recently been included in China's Action Plan of HIV Prevention and Control. To promote future PrEP implementation, this study aims to identify the barriers and facilitators in PrEP use intention among MSM in China.Methods: In 2018, a cross-sectional survey was conducted among 300 MSM in Nanjing, Jiangsu Province. Questions on demographics, sexual behavior (including a seven-item high-risk behavior index), PrEP use intention, PrEP-related awareness and accessibility, and a seven-item public HIV stigma scale were included in the questionnaire. Bivariate and multivariate logistic regression analyses were conducted to identify factors associated with PrEP use intention. Results: Overall, 44.67％ of the participants had more than two male sexual partners and 5.56％ had HIV-positive sexual partners. Only 57.00％ had heard of PrEP and only four (1.33％) participants had used PrEP. However, 75.34％ expressed the willingness to use oral PrEP if its efficacy was assured. The beliefs that "PrEP can prevent HIV if taken as prescribed" (adjusted odds ratio (AOR) = 4.84, P < 0.001) and "PrEP can be scaled up in the community" (AOR = 3.24, P < 0.001) were positively associated with oral PrEP use intention. Concerns of side effects were negatively associated with oral PrEP use intention (AOR = 0.32, P = 0.006). Further, 77.00％ of the participants would choose injectable or implanted PrEP instead of oral PrEP. One of the PrEP stigma items, "Not certain if doctors can prescribe PrEP if I go to the clinic" was positively associated with the intention to use injectable or implanted PrEP (AOR = 3.03). The items "Heard of PrEP" (AOR = 2.74) and "PrEP can prevent HIV if taken as prescribed" (AOR = 2.65) were also positively related to the intention to use injectable or implanted PrEP. The most common concerns regarding PrEP use were efficacy (44.67％) and side effects (38.67％). The most common reasons for using injectable and implanted PrEP were adherence (81.94％ and 77.86％, respectively) and privacy concerns (56.48％ and 55.00％, respectively). Affordable price and coverage by health insurance were the driving factors for PrEP use. Conclusion: Given the low level of awareness of PrEP-related information in China, it's necessary to provide interventions for high-risk individuals and communities, in order to increase their awareness and knowledge of PrEP. Furthermore, additional alternatives to HIV prevention, such as long-acting injectable or implanted PrEP, should be investigated to reduce the risk of HIV infection in at-risk MSM. Even if this programme could be approved by the National Medical Products Administration of China and implemented, a supportive social environment for MSM is essential during its implementing.

The unbalanced economic development, the lifestyle changes of the residents, the aging before getting rich and the burden of non-communicable chronic diseases in China have brought great pressure on China′s health system. However, the prevention and control mechanism of chronic diseases in China is far from mature, which restricts the development of the prevention and control of chronic diseases in China. Singapore′s new concept on chronic disease management and the the 3-level theoretical framework are good experience in the world and deserve to be learned by China. This article introduced the Healthy Living Master Plan in health promotion practice in Singapore, and made suggestions on construction of health management system to cope with the disease burden in China.

Objective To explore the effect of L-ascorbic acid(AA) for reducing the fibroblast cells induced by cobalt(co)cytotoxicity.Methods The experiment was divided into the blank control group,Co2+ group,Co2++AA group,cobalt nanoparticles(CoNPs) group,CoNPs+AA group and AA group.The AA pretreated for 1 h was performed in advance.The CCK8 assay was used to detect the CoNPs and Co2+ induced and AA-treated cytotoxicity.The fluorescence staining was used to measure the production of ROS in mitochondria.The real-time polymerase chain reaction(PCR) and Western blot were used to measure the expression of related protein and related molecular mRNA respectively.Moreover the cytochrome-C level in cytoplasml was detected.Results After treating the cells by CoNPs and Co2+,the cells appeared apoptosis.CoNPs could significantly induce ROS generation;the proapoptotic factors(caspases-3,and Bax) were significantly increased,while the anti-apoptotic factor Bcl-2 expression was decreased;cytochrome C and AIF expressions were up-regulated and released from mitochondria into the cytoplasm,after AA pretreatment,these changes caused by CoNPs were decreased.Conclusion AA can reduce the CoNPs caused cytotoxicity by reducing ROS generation and release,but can not weaken the Co2+ toxic effect.

Under the background of globalization, public health issues are becoming more and more complicated. In the international arena, global health has gradually replaced international health and "global public health" as one of the dominant terms in the field of public health. However, until now, there is no unified understanding and definition for the concept of global health domestically and internationally. In this article, various foreign experts 'views and domestic experts' opinions about the concept of global health are collected and solicited, in order to generalize appropriate Chinese definition of global health of China.
China ; Global Health ; Humans ; Public Health ; Vocabulary