The disease-syndrome combination animal model in traditional Chinese medicine （TCM） andrology serves as an important bridge linking TCM theory with modern medical research， providing a key experimental platform for elucidating the 'syndrome-disease' correlation mechanism in male-specific diseases and for screening effective prescriptions. This article reviews recent progress in animal model research on common TCM andrological diseases， including prostatic diseases， sexual dysfunction， and male infertility， with a focus on analyzing the application， advantages， and disadvantages of various modeling strategies， such as immune induction， hormonal intervention， and multi-factor combination across different syndrome types. However， despite breakthroughs in model construction techniques， current research still faces several challenges， including insufficient standardization of syndrome differentiation and difficulties in quantifying TCM-specific indicators. Future studies need to optimize model evaluation systems by integrating modern technologies， in order to promote the standardization and internationalization of TCM andrology research.

Objective:To analyze the epidemiological characteristics of influenza A virus (FluA), influenza B virus (FluB), and respiratory syncytial virus (RSV) in cases with influenza-like illness in the fever clinic of a tertiary hospital in Shanghai in order to provide reference for the prevention and control of influenza virus and RSV infections.Methods:Oropharyngeal swabs were collected from cases with influenza-like illness who were treated in Shanghai Pulmonary Hospital from February 2023 to May 2024. The nucleic acids of FluA, FluB, and RSV were detected by GeneXpert test. The demographic features including age and gender, and the epidemiological characteristics of viral infections and mixed infections in these patients were analyzed.Results:A total of 11 094 patients were tested for the nucleic acids of FluA, FluB, and RSV, and the positive rates were 36.82% (4 085/11 094), 9.70% (1 076/11 094), and 1.44% (160/11 094), respectively. During the period from February 2023 to May 2024, FluA mainly circulated in winter and spring, reaching its peak in March 2023 (74.51%, 766/1 028) and mainly affecting individuals aged 0 to 18 (45.62%, 198/434). FluB infection mainly occurred in winter, peaking in January 2024 (32.73%, 547/1 671) with the highest positive rate among individuals aged 19 to 44 (12.98%, 857/6 601). As few children were involved in this study, RSV infection was mainly detected in the elderly over 60 years old (3.19%, 94/2 950), and the positive rate was less than 5% every month. Co-infection of two viruses (24 cases) were occasionally detected.Conclusions:From 2023 to 2024, a large-scale influenza virus epidemic appears in Shanghai area, with FluA and FluB alternately being the dominant strain, and the positive rate of RSV remains at a low level, showing a sporadic pattern. The main age groups affected by different pathogens vary, and strengthened surveillance is still needed in the future.

Objective To establish the characteristic atlas of Shexiang Jiegu Capsule and determine the contents of seven active components （hydroxysafflor Yellow A, paeoniflorin, ferulic acid, naringin, ligustilide, catechin, epicatechin）. Methods Octadecyl silane bonded silica gel was used as the filling agent, the mobile phase was composed of methanol-0.05% phosphoric acid by gradient elution, the detection wavelength was 245 nm, flow rate was 1.0 ml/min, column temperature was 30℃. The similarity of the fifteen batches of sample was evaluated in line with the TCM Chromatographic Fingerprint （2012 edition）, and the contents of seven active components were determined. Results The HPLC fingerprint of Shexiang Jiegu Capsules was established. The similarity of fingerprint between fifteen batches of samples and control fingerprint was between 0.893 and 0.992. The results of methodological investigation for the determination of seven active components in fifteen batches of samples all met the requirements. Conclusion The established characteristic atlas of Shexiang Jiegu Capsules had high specificity and good repeatability, which could provide scientific basis for quality control of Shexiang Jiegu Capsules.

To review the clinical characteristics, short-term outcomes, and risk factors of patients with infective endocarditis(IE) who underwent surgical treatment at a single center, and to summarize treatment experience.

ObjectiveTo study the effect of Zuoguiwan on the development of skin barrier in the neonatal rat model of congenital kidney deficiency and unveil the underlying mechanism. MethodsSixty rats were paired in a female-to-male ratio of 2∶1， and the pregnant rats were assigned into control， congenital kidney deficiency， and low- and high-dose （2 and 8 g·kg^-1， respectively） Zuoguiwan groups. The pregnant rats in other groups except the control group were exposed to chronic unpredictable mild stress for the modeling of congenital kidney deficiency. The rats in the control group and congenital kidney deficiency group were administrated with normal saline by gavage， and those in Zuoguiwan groups with Zuoguiwan suspension by gavage from day 1 of pregnancy. The serum level of interleukin-6 （IL-6） in the neonatal rats on the day of birth was determined by enzyme-linked immunosorbent assay. The full-thickness skin of neonatal rats on the day of birth was removed from the same position on the back and stained with hematoxylin-eosin for observation of histopathological changes， measurement of skin thickness， and counting of hair follicles. Terminal deoxynucleotidyl transferase-mediated nick end labeling was used to detect the apoptosis of skin tissue cells. The expression of interleukin-6 receptor （IL-6R） and interleukin-17A （IL-17A） in the skin tissue was assessed by immunohistochemistry and Western blot， and the expression of occludin， connexin 43 （Cx43）， and zonula occludens-1 （ZO-1） in the skin tissue was assessed by immunofluorescence and Western blot. ResultsCompared with those in the control group， the neonatal rats in the congenital kidney deficiency group showed a rise in the serum IL-6 level （P<0.01）， decreases in stratum corneum thickness， skin thickness， and number of hair follicles （P<0.01）， increases in the expression of IL-6R and IL-17A in the skin tissue （P<0.01） and the number of apoptotic cells （P<0.01）， and decreases in the expression of occludin， Cx43， ZO-1 （P<0.05）. Compared with the congenital kidney deficiency group， the low- and high-dose Zuoguiwan groups showed declines in serum IL-6 level （P<0.05）. The low-dose group showed increased number of hair follicles （P<0.05）， and the high-dose group presented thickened stratum corneum （P<0.01）， increased number of hair follicles （P<0.01）， and down-regulated expression of IL-6R and IL-17A in the skin tissue （P<0.05， P<0.01）. Both Zuoguiwan groups showcased decreased number of apoptotic cells （P<0.05， P<0.01）， and the high-dose group showed up-regulated expression of occludin， Cx43， and ZO-1 in the skin tissue （P<0.05， P<0.01）. ConclusionZuoguiwan can reduce the levels of IL-6 in the serum and IL-6R and IL-17A in the skin tissue and improve the expression of intercellular junction proteins， thereby ameliorating the abnormal development of the skin barrier in the neonatal rat model of congenital kidney deficiency.

ObjectiveTo study the effect of Zuoguiwan on the development of skin barrier in the neonatal rat model of congenital kidney deficiency and unveil the underlying mechanism. MethodsSixty rats were paired in a female-to-male ratio of 2∶1， and the pregnant rats were assigned into control， congenital kidney deficiency， and low- and high-dose （2 and 8 g·kg^-1， respectively） Zuoguiwan groups. The pregnant rats in other groups except the control group were exposed to chronic unpredictable mild stress for the modeling of congenital kidney deficiency. The rats in the control group and congenital kidney deficiency group were administrated with normal saline by gavage， and those in Zuoguiwan groups with Zuoguiwan suspension by gavage from day 1 of pregnancy. The serum level of interleukin-6 （IL-6） in the neonatal rats on the day of birth was determined by enzyme-linked immunosorbent assay. The full-thickness skin of neonatal rats on the day of birth was removed from the same position on the back and stained with hematoxylin-eosin for observation of histopathological changes， measurement of skin thickness， and counting of hair follicles. Terminal deoxynucleotidyl transferase-mediated nick end labeling was used to detect the apoptosis of skin tissue cells. The expression of interleukin-6 receptor （IL-6R） and interleukin-17A （IL-17A） in the skin tissue was assessed by immunohistochemistry and Western blot， and the expression of occludin， connexin 43 （Cx43）， and zonula occludens-1 （ZO-1） in the skin tissue was assessed by immunofluorescence and Western blot. ResultsCompared with those in the control group， the neonatal rats in the congenital kidney deficiency group showed a rise in the serum IL-6 level （P<0.01）， decreases in stratum corneum thickness， skin thickness， and number of hair follicles （P<0.01）， increases in the expression of IL-6R and IL-17A in the skin tissue （P<0.01） and the number of apoptotic cells （P<0.01）， and decreases in the expression of occludin， Cx43， ZO-1 （P<0.05）. Compared with the congenital kidney deficiency group， the low- and high-dose Zuoguiwan groups showed declines in serum IL-6 level （P<0.05）. The low-dose group showed increased number of hair follicles （P<0.05）， and the high-dose group presented thickened stratum corneum （P<0.01）， increased number of hair follicles （P<0.01）， and down-regulated expression of IL-6R and IL-17A in the skin tissue （P<0.05， P<0.01）. Both Zuoguiwan groups showcased decreased number of apoptotic cells （P<0.05， P<0.01）， and the high-dose group showed up-regulated expression of occludin， Cx43， and ZO-1 in the skin tissue （P<0.05， P<0.01）. ConclusionZuoguiwan can reduce the levels of IL-6 in the serum and IL-6R and IL-17A in the skin tissue and improve the expression of intercellular junction proteins， thereby ameliorating the abnormal development of the skin barrier in the neonatal rat model of congenital kidney deficiency.

Objective:To analyze the epidemiological characteristics of influenza A virus (FluA), influenza B virus (FluB), and respiratory syncytial virus (RSV) in cases with influenza-like illness in the fever clinic of a tertiary hospital in Shanghai in order to provide reference for the prevention and control of influenza virus and RSV infections.Methods:Oropharyngeal swabs were collected from cases with influenza-like illness who were treated in Shanghai Pulmonary Hospital from February 2023 to May 2024. The nucleic acids of FluA, FluB, and RSV were detected by GeneXpert test. The demographic features including age and gender, and the epidemiological characteristics of viral infections and mixed infections in these patients were analyzed.Results:A total of 11 094 patients were tested for the nucleic acids of FluA, FluB, and RSV, and the positive rates were 36.82% (4 085/11 094), 9.70% (1 076/11 094), and 1.44% (160/11 094), respectively. During the period from February 2023 to May 2024, FluA mainly circulated in winter and spring, reaching its peak in March 2023 (74.51%, 766/1 028) and mainly affecting individuals aged 0 to 18 (45.62%, 198/434). FluB infection mainly occurred in winter, peaking in January 2024 (32.73%, 547/1 671) with the highest positive rate among individuals aged 19 to 44 (12.98%, 857/6 601). As few children were involved in this study, RSV infection was mainly detected in the elderly over 60 years old (3.19%, 94/2 950), and the positive rate was less than 5% every month. Co-infection of two viruses (24 cases) were occasionally detected.Conclusions:From 2023 to 2024, a large-scale influenza virus epidemic appears in Shanghai area, with FluA and FluB alternately being the dominant strain, and the positive rate of RSV remains at a low level, showing a sporadic pattern. The main age groups affected by different pathogens vary, and strengthened surveillance is still needed in the future.

Objective To systematically evaluate the efficacy and safety of nivolumab in the treatment of non-small cell lung cancer.Methods PubMed,Embase,Cochrane Library,China National Knowledge Infrastructure(CNKI),Weipu Chinese Science and Technology Journal Database,Wanfang Medical Database were searched for articles published from the establishment of the database to March 2023.Published randomized controlled clirical trials of nivolumab in the treatment of patients with non-small cell lung cancer were selected,overall survival,progression-free survival,and adverse reaction rate as outcome indicators were used.A meta-analysis using STATA version 13.1 statistical software was conducted.Results A total of 8 phase Ⅲrandomized controlled trials involving 4 945 subjects were included.Compared with the traditional chemotherapy group,patients in the nivolumab group had significantly reduced risk of death in terms of overall survival(HR=0.73,95%CI=0.65-0.82,P<0.05),and in terms of progression-free survival,nivolumab significantly reduced the risk of recurrence compared with the traditional chemotherapy group(HR=0.74,95%CI=0.63-0.88,P<0.05).In terms of safety,there was no significant difference between the nivolumab group and the traditional chemotherapy group for diarrhea,but the incidence of nausea,neutropenia,anemia,decreased appetite,and fatigue in the nivolumab group was lower than that in the traditional chemotherapy group.However,it should be worth noting that the incidence of immune-related adverse events such as rash was higher in the nivolumab group than in the traditional chemotherapy group,and the difference was statistically significant(OR=3.85,95%CI=2.05-6.25,P<0.05).Conclusion Compared to traditional chemotherapy,the efficacy and safety of nivolumab in the treatment of non-small cell lung cancer were better,but the risk of immune-related adverse events increased.

In patients with acute ischemic stroke, there is a wide variation in the composition of blood clots that block the blood vessels. Some imaging features are associated with the components of the clot, such as thrombus permeability, which is related to higher red blood cell density and lower fibrinogen density. The different components and mechanical properties of the clot may have an impact on treatment effectiveness and risk. Therefore, this article aims to summarize the correlation between thrombus permeability and biological, imaging characteristics, and explore the clinical significance of thrombus permeability in the treatment of patients with acute ischemic stroke, providing reference and assistance for neurologists.

Objective:To establish a general method for the simultaneous determination of hydroxyphenyl esters and quaternary ammonium bacteriostatic agents in eye drops.Methods:The chromatographic analysis was per-formed on an Agilent C18 column(4.6 mm ×250 mm,5 μm)with 1％triethylamine solution(pH adjusted to 5.0 with phosphoric acid)as mobile phase A and methanol as mobile phase B.Gradient elution was performed at col-umn temperature of 40 ℃.The detection wavelength was 214 nm,the flow rate was 1 mL·min-1,and the injec-tion volume was 20 μL.Results:Methylparaben,ethylparaben,propylparaben,butylparaben,benzalkonium chlo-ride and benzalkonium bromide were 0.11-559.0,0.10-513.0,0.10-258.8,0.11-270.5,1.07-537.0 and 1.03-512.8 μg·mL-1,respectively.The linear range was good(r＞0.999).The average recoveries of meth-ylparaben,benzalkonium bromide and benzalkonium chloride were 104.7％(RSD=1.3％),102.6％(RSD=1.1％)and 100.9％(RSD=1.1％),respectively.The contents of bacteriostatic agent in 100 batches of eye drops from 36 varieties of 12 enterprises were determined,and the accurate results were obtained.Conclusion:This meth-od provides a reference for the content quality control and safety evaluation of bacteriostatic agents in eye drops.