Purpose: Erectile dysfunction (ED) is a common male sexual dysfunction. Gut microbiota plays an important role in various diseases. To investigate the effects and mechanisms of intestinal flora dysregulation induced by high-fat diet (HFD) on erectile function. Materials and Methods: Male Sprague–Dawley rats aged 8 weeks were randomly divided into the normal diet (ND) and HFD groups. After 24 weeks, a measurement of erectile function was performed. We performed 16S rRNA sequencing of stool samples. Then, we established fecal microbiota transplantation (FMT) rat models by transplanting fecal microbiota from rats of ND group and HFD group to two new groups of rats respectively. After 24 weeks, erectile function of the rats was evaluated and 16S rRNA sequencing was performed, and serum samples were collected for the untargeted metabolomics detection. Results: The erectile function of rats and the species diversity of intestinal microbiota in the HFD group was significantly lower, and the characteristics of the intestinal microbiota community structure were also significantly different between the two groups. The erectile function of rats in the HFD-FMT group was significantly lower than that of rats in the ND-FMT group. The characteristics of the intestinal microbiota community structure were significantly different. In the HFD-FMT group, 27 metabolites were significantly different and they were mainly involved in the several inflammation-related pathways. Conclusions Intestinal microbiota disorders induced by HFD can damage the intestinal barrier of rats, change the serum metabolic profile, induce low-grade inflammation and apoptosis in the corpus cavernosum of the penis, and lead to ED.

Purpose: Erectile dysfunction (ED) is a common male sexual dysfunction. Gut microbiota plays an important role in various diseases. To investigate the effects and mechanisms of intestinal flora dysregulation induced by high-fat diet (HFD) on erectile function. Materials and Methods: Male Sprague–Dawley rats aged 8 weeks were randomly divided into the normal diet (ND) and HFD groups. After 24 weeks, a measurement of erectile function was performed. We performed 16S rRNA sequencing of stool samples. Then, we established fecal microbiota transplantation (FMT) rat models by transplanting fecal microbiota from rats of ND group and HFD group to two new groups of rats respectively. After 24 weeks, erectile function of the rats was evaluated and 16S rRNA sequencing was performed, and serum samples were collected for the untargeted metabolomics detection. Results: The erectile function of rats and the species diversity of intestinal microbiota in the HFD group was significantly lower, and the characteristics of the intestinal microbiota community structure were also significantly different between the two groups. The erectile function of rats in the HFD-FMT group was significantly lower than that of rats in the ND-FMT group. The characteristics of the intestinal microbiota community structure were significantly different. In the HFD-FMT group, 27 metabolites were significantly different and they were mainly involved in the several inflammation-related pathways. Conclusions Intestinal microbiota disorders induced by HFD can damage the intestinal barrier of rats, change the serum metabolic profile, induce low-grade inflammation and apoptosis in the corpus cavernosum of the penis, and lead to ED.

Purpose: Erectile dysfunction (ED) is a common male sexual dysfunction. Gut microbiota plays an important role in various diseases. To investigate the effects and mechanisms of intestinal flora dysregulation induced by high-fat diet (HFD) on erectile function. Materials and Methods: Male Sprague–Dawley rats aged 8 weeks were randomly divided into the normal diet (ND) and HFD groups. After 24 weeks, a measurement of erectile function was performed. We performed 16S rRNA sequencing of stool samples. Then, we established fecal microbiota transplantation (FMT) rat models by transplanting fecal microbiota from rats of ND group and HFD group to two new groups of rats respectively. After 24 weeks, erectile function of the rats was evaluated and 16S rRNA sequencing was performed, and serum samples were collected for the untargeted metabolomics detection. Results: The erectile function of rats and the species diversity of intestinal microbiota in the HFD group was significantly lower, and the characteristics of the intestinal microbiota community structure were also significantly different between the two groups. The erectile function of rats in the HFD-FMT group was significantly lower than that of rats in the ND-FMT group. The characteristics of the intestinal microbiota community structure were significantly different. In the HFD-FMT group, 27 metabolites were significantly different and they were mainly involved in the several inflammation-related pathways. Conclusions Intestinal microbiota disorders induced by HFD can damage the intestinal barrier of rats, change the serum metabolic profile, induce low-grade inflammation and apoptosis in the corpus cavernosum of the penis, and lead to ED.

Purpose: Erectile dysfunction (ED) is a common male sexual dysfunction. Gut microbiota plays an important role in various diseases. To investigate the effects and mechanisms of intestinal flora dysregulation induced by high-fat diet (HFD) on erectile function. Materials and Methods: Male Sprague–Dawley rats aged 8 weeks were randomly divided into the normal diet (ND) and HFD groups. After 24 weeks, a measurement of erectile function was performed. We performed 16S rRNA sequencing of stool samples. Then, we established fecal microbiota transplantation (FMT) rat models by transplanting fecal microbiota from rats of ND group and HFD group to two new groups of rats respectively. After 24 weeks, erectile function of the rats was evaluated and 16S rRNA sequencing was performed, and serum samples were collected for the untargeted metabolomics detection. Results: The erectile function of rats and the species diversity of intestinal microbiota in the HFD group was significantly lower, and the characteristics of the intestinal microbiota community structure were also significantly different between the two groups. The erectile function of rats in the HFD-FMT group was significantly lower than that of rats in the ND-FMT group. The characteristics of the intestinal microbiota community structure were significantly different. In the HFD-FMT group, 27 metabolites were significantly different and they were mainly involved in the several inflammation-related pathways. Conclusions Intestinal microbiota disorders induced by HFD can damage the intestinal barrier of rats, change the serum metabolic profile, induce low-grade inflammation and apoptosis in the corpus cavernosum of the penis, and lead to ED.

Purpose: Erectile dysfunction (ED) is a common male sexual dysfunction. Gut microbiota plays an important role in various diseases. To investigate the effects and mechanisms of intestinal flora dysregulation induced by high-fat diet (HFD) on erectile function. Materials and Methods: Male Sprague–Dawley rats aged 8 weeks were randomly divided into the normal diet (ND) and HFD groups. After 24 weeks, a measurement of erectile function was performed. We performed 16S rRNA sequencing of stool samples. Then, we established fecal microbiota transplantation (FMT) rat models by transplanting fecal microbiota from rats of ND group and HFD group to two new groups of rats respectively. After 24 weeks, erectile function of the rats was evaluated and 16S rRNA sequencing was performed, and serum samples were collected for the untargeted metabolomics detection. Results: The erectile function of rats and the species diversity of intestinal microbiota in the HFD group was significantly lower, and the characteristics of the intestinal microbiota community structure were also significantly different between the two groups. The erectile function of rats in the HFD-FMT group was significantly lower than that of rats in the ND-FMT group. The characteristics of the intestinal microbiota community structure were significantly different. In the HFD-FMT group, 27 metabolites were significantly different and they were mainly involved in the several inflammation-related pathways. Conclusions Intestinal microbiota disorders induced by HFD can damage the intestinal barrier of rats, change the serum metabolic profile, induce low-grade inflammation and apoptosis in the corpus cavernosum of the penis, and lead to ED.

Protein arginine methyltransferase 5 (PRMT5) exhibits elevated expression levels in a variety of cancers and has emerged as a critical target for cancer therapy in recent years. However, first-generation PRMT5 inhibitors have exhibited inadequate selectivity, leading to significant hematological toxicity, thus limiting their clinical utility. The second-generation PRMT5 inhibitors have shown marked improvement in safety and efficacy by selectively targeting MTAP-null tumor cells without impacting normal cells. This review systematically summarizes the biological and functional roles of PRMT5 in MTAP-deficient tumor cells, and comprehensively analyzes the research and development process, molecular binding mechanisms, and the latest advancements in clinical trials of the five second-generation PRMT5 inhibitors currently under investigation, aiming to provide valuable insights for further in-depth studies in this field.

Metabolic syndrome is a complex group of metabolic disorders with an increasing global incidence rate,posing a serious threat to human health.Sodium-glucose linked transporter 2(SGLT2)inhibitors are a new type of oral hypoglycemic drug.SGLT2 inhibitors not only lower blood glucose level in a non-insulin-dependent manner by inhibiting glucose reabsorption by renal proximal convoluted tubular epithelial cell to promote urinary glucose excretion,but also by improving islet β cell function,reducing inflammatory responses,and inhibiting oxidative stress.In addition,SGLT2 inhibitors can reduce body weight through osmotic diuresis and increase fat metabolism;reduce blood pressure by inhibiting excessive activation of sympathetic nervous system and by improving vascular function.They can also improve blood lipids by increasing degradation of triacylglycerol;reduce blood uric acid by promoting uric acid excretion in kidney and intestine,and by reducing uric acid synthesis.This article reviews the effects and mechanisms of SGLT2 inhibitors on multiple metabolic disorders in metabolic syndrome and explores their potential application in metabolic syndrome treatment.

Single-cell transcriptome sequencing (scRNA-seq) can resolve the expression characteristics of cells in tissues with single-cell precision, enabling researchers to quantify cellular heterogeneity within populations with higher resolution, revealing potentially heterogeneous cell populations and the dynamics of complex tissues. However, the presence of a large number of technical zeros in scRNA-seq data will have an impact on downstream analysis of cell clustering, differential genes, cell annotation, and pseudotime, hindering the discovery of meaningful biological signals. The main idea to solve this problem is to make use of the potential correlation between cells and genes, and to impute the technical zeros through the observed data. Based on this, this paper reviewed the basic methods of imputing technical zeros in the scRNA-seq data and discussed the advantages and disadvantages of the existing methods. Finally, recommendations and perspectives on the use and development of the method were provided.
Cluster Analysis ; Transcriptome

With the acceleration of the aging process, the number of hip and knee arthroplasty in the elderly population is growing rapidly. Joint arthroplasty has become the best method to treat terminal hip and knee diseases. However, the incidence of functional constipation in elderly patients after hip and knee arthroplasty is increasing year by year, which affects the physical and mental health of patients, leading to decreased rehabilitation compliance and prolonged hospitalization, seriously affecting the surgical effect and prognosis. This article summarizes the influencing factors and interventions of functional constipation in elderly patients after hip and knee arthroplasty in current domestic and foreign studies, with a view to providing reference for clinical nursing practice.

Objective:To investigate the effects of ear holographic tongbian scraping on the constitution, related symptoms and immune function of the population with Qi-deficiency.Methods:From April 2020 to June 2020, 80 subjects judged as Qi-deficiency by the "Traditional Chinese Medicine constitution test" in Suzhou Traditional Chinese Medicine Hospital Affiliated to Nanjing University of Chinese Medicine were recruited offline and online. They were divided into control group and experimental group by random number table method, with 40 cases in each group. On the basis of online health education, the control group received online health education, while the experimental group was given ear holographic tongbian scraping, once a week, 4 times as a course of treatment, a total of 3 courses. Related symptom scores, Qi-deficiency transformation scores, peripheral blood CD4 + proportion, CD8 + proportion, CD4 +/CD8 + ratio were compared between two groups. Results:Totally 38 cases were included in experimental group and 34 cases in control group. After intervention, symptom scores of fatigue, shortness of breath, easy to catch a cold, laziness to speak, low voice and Qi-deficiency transformation scores were 3.26 ± 0.76, 2.92 ± 0.82, 3.08 ± 0.82, 2.66 ± 0.97, 2.71 ± 0.80, 46.16 ± 17.96 in experimental group and 4.12 ± 0.41, 3.76 ± 0.55, 3.50 ± 0.56, 3.65 ± 0.65, 3.18 ± 0.67, 56.88 ± 10.80 in control group, the differences were statistically significant ( t values were -6.02 - -2.51, all P<0.05). Peripheral blood test results also showed that the proportion of CD8 + was 24.76(19.92, 28.23)% in experimental group and 27.19(24.39, 31.57)% in control group, the difference was statistically significant ( Z=-2.25, P<0.05). Conclusions:Ear holographic tongbian scraping can regulate the Qi-deficiency constitution and improve the immune function of people with Qi-deficiency.