Objective To investigate the role of heme oxygenase-1(HO-1)on HBV replication and the antiviral effect of HO-1 combined with α-interferon(IFN-α).Methods HepG2.2.15 cells and HBV1.3-transfected HepG2 cells(HepG2-HBV1.3)were used as HBV replicating cell models;Hemin treated HepG2.2.15 and HepG2-HBV1.3 cells,to induce the expression of HO-1 molecules.CCK-8 method was used to assess the toxic effects of Hemin on HepG2 and HepG2.2.15;chemiluminescence method was used to analyze HBsAg and HBeAg in the supernatants of Hemin-treated group and si-HO-1 and other experimental groups;RT-qPCR was used to ana-lyze HO-1,IFN-β and HBV-DNA;Western blot was used to analyze the expression of IRF-3 and the expression of related molecules in the JAK/STAT signaling pathway;Hemin combined with IFN-α treated HepG2.2.15 to moni-tor whether HO-1 had synergistic IFN-α antiviral effect.Results Hemin dose-dependently induced HO-1,and HO-1 was induced to exert a significant anti-HBV effect,while the expression of IFN-β,IRF-3,and IRF-9 and MxA,downstream molecules of the JAK/STAT signaling pathway,were all increased.Silencing HO-1 expression reversed the antiviral effect in the Hemin-induced group,and at the same time,type Ⅰ interferon IFN-β showed low expression,and the expression of IRF-9 and MxA in the JAK/STAT signaling pathway was inhibited as well.He-min combined with IFN-α exerted stronger antiviral effects.Conclusion HO-1 can exert an anti-HBV effect,which may be due to increased phosphorylation of IRF-3 to induce type Ⅰ interferon expression and thus activate the JAK/STAT signaling pathway to exert an antiviral effect;HO-1 can synergize with IFN-α to exert an antiviral effect.

Objective:To evaluate the effect of venous excess ultrasound score (VExUS Score) in the acute kidney injury(AKI) in Patients with sepsis, so as to reduce the risk of disease and improve the prognosis of patients.Methods:This experiment was a single-center prospective cohort study. Include septic patients with AKI who were admitted to the Department of Emergency Intensive Care Unit of the First Affiliated Hospital of Anhui Medical University from February 2022 to February 2023, Those with inadequate window, inferior vena cava (IVC) thrombus, age<18 years and known case of cirrhosis with portal hypertension were excluded from the study. Patients underwent ultrasound examination with serial determination till AKI resolved or patient is initiated on dialysis.Results:Totally 86 patients were enrolled for the study. The mean age was (60.43±15.48) with 50 (58.1%) males. Mean sequential organ failure assessment (SOFA) score was (6.23±1.87). 38 patients (44.2%) were in AKI stage 1, while 24 patients (27.9%) were in AKI stage 2 and stage 3 each. 52 patients (60.5%) had VExUS grade Ⅲ. Resolution of AKI injury showed significant correlation with improvement in VExUS grade ( p value 0.003). Similarly, there was significant association between changes in VExUS grade and fluid balance ( p value 0.005). There was no correlation between central venous pressure (CVP), left ventricular function, and right ventricular function with change in VExUS grade. Conclusions:The study shows a significant correlation between the VExUS Score and AKI staging, With improvement in kidney function, there is decline in the VExUS grade as well. Moreover VExUS Score might reliably demonstrate venous congestion and aid in the clinical decision to perform fluid removal.

Hepatocellular carcinoma(HCC)accounts for more than 80％of primary liver cancer,and the prognosis of patients is very poor due to factors such as untimely diagnosis,failure of chemotherapy and frequent recurrence.MicroRNA is a kind of endogenous noncoding RNA,which can inhibit the translation of messenger RNA in liver malignant tumors,regulate the proliferation,apoptosis,migration and invasion of HCC cells,and play an important role in the development of HCC.Therefore,the mechanism of miRNAs in the development of HCC and its research progress in diagnosis and treatment are deeply discussed.

Objective To explore the efficacy and safety of recombinant human anti-severe acute respiratory syn-drome coronavirus 2(anti-SARS-CoV-2)monoclonal antibody injection(F61 injection)in the treatment of patients with coronavirus disease 2019(COVID-19)combined with renal damage.Methods Patients with COVID-19 and renal damage who visited the PLA General Hospital from January to February 2023 were selected.Subjects were randomly divided into two groups.Control group was treated with conventional anti-COVID-19 therapy,while trial group was treated with conventional anti-COVID-19 therapy combined with F61 injection.A 15-day follow-up was conducted after drug administration.Clinical symptoms,laboratory tests,electrocardiogram,and chest CT of pa-tients were performed to analyze the efficacy and safety of F61 injection.Results Twelve subjects(7 in trial group and 5 in control group)were included in study.Neither group had any clinical progression or death cases.The ave-rage time for negative conversion of nucleic acid of SARS-CoV-2 in control group and trial group were 3.2 days and 1.57 days(P=0.046),respectively.The scores of COVID-19 related target symptom in the trial group on the 3rd and 5th day after medication were both lower than those of the control group(both P＜0.05).According to the clinical staging and World Health Organization 10-point graded disease progression scale,both groups of subjects improved but didn't show statistical differences(P＞0.05).For safety,trial group didn't present any infusion-re-lated adverse event.Subjects in both groups demonstrated varying degrees of elevated blood glucose,elevated urine glucose,elevated urobilinogen,positive urine casts,and cardiac arrhythmia,but the differences were not statistica-lly significant(all P＞0.05).Conclusion F61 injection has initially demonstrated safety and clinical benefit in trea-ting patients with COVID-19 combined with renal damage.As the domestically produced drug,it has good clinical accessibility and may provide more options for clinical practice.

Objective lo investigate the protective effect of dihydromyricetin(DHM)against exercise-induced muscle damage(EIMD)in mice and its potential mechanism. Methods Adult male C57BL/6J mice were randomly divided into control group(CG),exercise group(EG),and exercise+100 mg/kg weightd DHM(DHM)group.The intervention lasted for four weeks,during which the animals in the EG and DHM groups were subjected to exercise training for 1 h per day.The day after the training,a 90-min treadmill exercise(slope:0 and speed:18 m/min)was conducted in both EG and DHM groups.Samples of blood and gastrocnemius muscles were harvested from the three groups 24 h after the exercise,followed by the measurement of serum creatine kinase(CK)and lactate dehydrogenase(LDH)activities,total superoxide dismutase(T-SOD)activity,malondialdehyde(MDA),and skeletal muscle mitochondrial enzyme complex Ⅰ and Ⅱ activities.Histological changes in the skeletal muscle were observed by transmission electron microscopy,and the protein expressions of mitochondrial function-related pathways were detected by Western blotting. Results Skeletal muscle morphological changes and mitochondrial damage were alleviated in the DHM group compared to those in the EG.The activities of EIMD markers CK and LDH and the level of lipid peroxidation were notably repressed and the serum T-SOD activity was enhanced after DHM intervention.Western blotting demonstrated that the expressions of sirtuin type 3(SIRT3),estrogen-related receptor alpha,and peroxisome proliferator-activated receptor-gamma coactivator-1 alpha in the skeletal muscle of mice increased after the DHM intervention. Conclusion DHM can relieve EIMD in mice,possibly by promoting the recovery of the mitochondrial structure and function in the skeletal muscle of mice after high-intensity exercise via the activation of the SIRT3 signaling pathway.

Objective To investigate the epidemiological characteristics and trends in the prevalence of tuberculosis among in the six urban districts of Tianjin from 2014 to 2023, so as to provide scientific basis for the prevention and control of tuberculosis. Methods Data on the occurrence of new tuberculosis cases among in the six urban districts of Tianjin from 2014 to 2023 were collected through the Tianjin Infectious Disease Report Information Management System, and the epidemiological characteristics of new tuberculosis cases were descriptively analyzed. Then the Average Annual Percentage Change (AAPC) statistics were used to characterize the magnitude and direction of trends. Results A total of 17 818 tuberculosis cases were reported in the six urban districts of Tianjin from 2014 to 2023 , with an average annual reported prevalence rate of 25.61/100 000. The prevalence rate of tuberculosis in the six urban districts of Tianjin from 2014 to 2023 showed a decreasing trend, reporting a prevalence rate of 35.47/100 000 in 2014 and 22.72/100 000 in 2023, and AAPC is -4.86% (-7.13% to -1.56%) , with statistical difference (P<0.05). In terms of gender, the overall prevalence rate of tuberculosis was 31.17/100,000 in males and 19.47/100,000 in females, with statistical difference (χ²=276.12 , P<0.05). The incidence in people younger than 25 years and older than 55 years is on the rise from 2014 to 2023. In terms of occupation, household duties, unemployed people, retired people and office clerks showed a high prevalence rate of tuberculosis. Conclusion The overall prevalence of adult tuberculosis in the six urban districts of Tianjin from 2014 to 2023 shows a decreasing trend, whereas the prevalence rate of males is higher than that of females, and the elderly, families, unemployed people, retirees and office clerks are high-risk groups, so targeted preventive and control measures, health education and screening should be strengthened.

Microsporidia is a group of intracellular parasitic eukaryotic microorganisms that pose threats to livestock fish production and human health, but there is no special chemo-therapeutic drug available for the treatment of microsporidia currently. In this study, sulfonamide derivatives of spectinomycin were designed by taking into consideration the low toxicity of spectinomycin and the favorable pharmaceutical properties of sulfonamides. Through the exploration of reaction conditions, a total of 21 target molecules were synthesized with a yield of 52%-74% and their chemical structures were confirmed by ¹H NMR, ¹³C NMR, and high resolution mass spectrometry (HR MS). By screening in vitro, the host cell cytotoxicity and biological activity of target molecules to Encephalitozoon hellem, a representative of vertebrates infecting microsporidia, were studied. It was found that four target molecules each could inhibit or promote the proliferation of E. hellem. In this study, the synthesis method of sulfonamide derivatives of spectinomycin was established, and new compounds effective against E. hellem were discovered, which provided a new idea for the further derivatization of spectinomycin and the development of therapeutic drugs targeting microsporidia.

The composition and working principle of TiRobot surgery robot were introduced.Four cases of uncontrolled motion faults of the robot in image alignment of the main control trolley,precision of the navigation and positioning instruments,positional offset of the robotic arm and initialization of the optical tracking system were explored in terms of phenomenon,cause and treatment.References were provided for medical engineers to treat similar faults.[Chinese Medical Equipment Journal,2024,45(11):117-120]

In accordance with the theory of'treating the skin diseases with the skin',skin-related Chinese medicinals are usually used for the treatment of skin diseases,which reflects the thinking mode of holistic syndrome differentiation and classification according to the manifestations in traditional Chinese medicine.With ying-yang theory as the principle of differentiation and treatment of diseases and based on the core pathogenesis of'yin-yang imbalance causing the manifestations of the skin'for the skin diseases,Chinese medical master XU AN Guo-Wei has used skin-related Chinese medicinals in the treatment of skin diseases and has given full play to their unique advantage by following the theory of'treating the skin diseases with the skin'and'balanced regulation of yin and yang'.In the clinical practice,allergic skin diseases were usually treated with Cicadae Periostracum plus Dictamni Cortex for dispelling wind and relieving itching,hypopigmentation related skin diseases were usually treated with Sojae Semen Nigrum skin plus Dictamni Cortex for dispelling wind and tonifying kidney,autoimmune skin diseases were usually treated with Moutan Cortex plus Lycii Cortex for nourishing yin,clearing heat and activating blood,and skin diseases associated with abnormal sebum secretion were usually treated with Mori Cortex plus Lycii Cortex for purging lung and nourishing kidney.Skin-related Chinese medicinals have the actions of expelling wind and promoting eruption of papules,tonifying kidney and nourishing yin.The medication method of'treating the skin diseases with the skin'will provide reference for the treatment of skin diseases.

Objective To investigate the effect of varying ureteral wall thickness(UWT)at the site of ureteral stones on the clinical efficacy of ureteroscopic lithotripsy(URL).Methods The clinical data of 164 patients with ureteral stones in our hospital were retrospectively analyzed.According to different UWT,the patients were divided into the mild thickening group(84 cases,UWT<3.16 mm),the moderate thickening group(31 cases,UWT 3.16 to 3.49 mm),and the severe thickening group(49 cases,UWT>3.49 mm),and the differences of clinical related indicators among the three groups were compared.Results The incidence of postoperative renal colic and leukocyte disorder in the mild thickening group and the moderate thickening group were lower than those in the severe thickening group,and the differences were statistically significant(P<0.05).The postoperative catheterization time in the mild thickening group and the moderate thickening group were shorter than that in the severe thickening group,and the incidences of secondary lithotripsy,residual stones and stone return to kidney in the mild thickening group and the moderate thickening group were lower than those in the severe thickening group,with statistically significant differences(P<0.05).The length of hospital stay and hospitalization cost in the mild thickening group and the moderate thickening group were shorter/less than those in the severe thickening group,with statistically significant differences(P<0.05).Conclusion With the increase of UWT(especially when UWT>3.49 mm),the incidence of postoperative complications and hospitalization cost of URL increase to varying degrees,and the surgical efficacy decreases.In clinical work,UWT measurement holds potential value in predicting the surgical efficacy and complications of URL.