Objective To explore the differences in gut microbiota among different histopathologi-cal subtypes of lung cancer.Methods A total of 80 lung cancer patients admitted to the Department of Oncology and Hematology of Anqing First People's Hospital from February 2020 to February 2024 were selected as study subjects.Meanwhile,80 healthy volunteers who underwent physical examina-tions during the same period were selected as control group.According to pathological examination re-sults,the lung cancer patients were divided into three subgroups:lung squamous cell carcinoma group,lung adenocarcinoma group,and lung small-cell cancer group.The 16S ribosomal RNA(16S rRNA)sequencing technology was used to compare the differences in gut microbiota diversity and the characteristics of species relative abundance between lung cancer patients with different patho-logical grades and the control group.Results The proportion of patients with a family history of lung cancer was higher in different lung cancer subtypes than in the control group,and the difference was statistically significant(P＜0.05).The abundance-based coverage estimator(ACE)index,Simpson index,and Shannon index of patients with different lung cancer pathological subtypes were all lower than those in the control group,and the differences were statistically significant(P＜0.05).β-diver-sity analysis showed that there were significant differences in the variation of gut microbial community structure between the control group and lung cancer patients with different pathological types(P＜0.05).The results of LEfSe indicated that there were differences in gut characteristic microbiota among patients with different pathological subtypes.Specifically,Megamonas was enriched in the LUAD group,Butyrivibrio was enriched in the LSCC group,and Akkermansia was enriched in the SCLC group.Conclusion There are significant differences in the composition of gut microbiota between lung cancer patients and the normal population,and the gut microbiota of patients with different lung cancer pathological subtypes have distinct characteristics.These differences may provide new bio-markers and therapeutic strategies for the diagnosis and treatment of lung cancer.

Objective To analyze the impact of sarcopenia on the efficacy and adverse reactions of immunotherapy combined with chemotherapy in patients with advanced gastric cancer.Methods Patients with locally advanced or metastatic gastric cancer confirmed by pathology who were not eligible for radical surgery were selected as study subjects.A body composition analyzer was used to measure the appendicular muscle mass of the patients and calculate the skeletal muscle mass index(SMI).Based on the SMI,the patients were divided into sarcopenia group and non-sarcopenia group.On the basis of nutritional intervention and comprehensive exercise therapy,the patients were administered immu-notherapy combined with chemotherapy.The efficacy and adverse reactions were evaluated.The primary endpoint was progression-free survival(PFS),and the secondary endpoints were the objec-tive response rate(ORR)and treatment-related adverse reactions.Results A total of 52 gastric cancer patients were included,with 23 in the sarcopenia group and 29 in the non-sarcopenia group.The median PFS in the non-sarcopenia group was 9.8 months(95％CI,8.9 to 12.4),and was 5.4 months in the sarcopenia group(95％CI,4.9 to 8.1).The median PFS in the non-sarcopenia group was longer than that in the sarcopenia group,and the difference was statistically significant[HR(95％CI)=0.41(0.23 to 0.73),P=0.003].The results of the multivariate Cox propor-tional hazards regression model showed that comorbidities,treatment cycles,and sarcopenia were all independent prognostic factors affecting the PFS of gastric cancer patients(P＜0.05).The ORR in the non-sarcopenia group was 48.28％(14/29),and was 17.39％(4/23)in the sarcopenia group(x2=5.276,P＜0.05).Treatment-related adverse reactions with grading ≥3 in both groups were mainly hematological toxicities.In the non-sarcopenia group,the incidence of grading ≥ 3 treat-ment-related adverse reactions was 27.59％(8/29),and the incidence of grading＜3 treatment-re-lated adverse reactions(including those with no adverse reactions)was 72.41％(21/29).In the sarcopenia group,the incidence of grading ≥3 treatment-related adverse reactions was 56.52％(13/23),and the incidence of grading＜3 treatment-related adverse reactions(including those without adverse reactions)was 43.48％(10/23).The incidence of grading ≥3 treatment-related adverse reactions in the non-sarcopenia group was lower than that in the sarcopenia group(P=0.035).Conclusion For patients with locally advanced or metastatic gastric cancer complicated with sarcopenia,the median PFS of immunotherapy combined with chemotherapy is shorter,the ORR is lower,and the incidence of treatment-related adverse reactions is increased.Therefore,ear-ly intervention for sarcopenia should be implemented to improve the quality of life of patients with advanced gastric cancer.

Objective To compare the contents of alkaloid in Aconiti Kusnezoffii Radix with different degrees of processing and their effects on electrocardiogram and vagus nerve action potential in SD rats;To establish a toxicity evaluation method for Aconiti Kusnezoffii Radix and its processed products.Methods HPLC was used to determine the contents of six alkaloid components,including benzoyl neoaconitine,benzoyl aconitine,benzoyl subeaconitine,neoaconitine,subeaconitine and aconitine in Aconiti Kusnezoffii Radix and Aconiti Kusnezoffii Radix Cocta of soaking and boiled for 30 minutes,boiled for 4 h without soaking,soaking and boiled for 4 h,and soaking and boiled for 8 h.SD rats were subjected to sublingual drainage with Aconiti Kusnezoffii Radix and four types of processed products.The vagus nerve action potential and electrocardiogram of rats before and after administration were recorded,and the correlation analysis between alkaloid content and vagus nerve action potential and heart rate was conducted.Results The contents of alkaloid of the four processed products showed that the content of diester alkaloids was soaking and boiled for 30 min>boiled for 4 h without soaking>soaking and boiled for 4 h>soaking and boiled for 8 h;monoester alkaloid content:boiled for 4 h without soaking>soaking and boiled for 30 min>soaking and boiled for 4 h>soaking and boiled for 8 h.After the administration of each sample,compared with the basal discharge,the vagus nerve discharge of rats with different processed products was changed by sublingual administration,heart rate increased,the degree of arrhythmia increased,and it varied with the degree of processing;the results of correlation analysis showed that there was a significant correlation between the nerve discharge area and the contents of diester alkaloids and total alkaloids.Conclusion The action potential of the vagus nerve and electrocardiogram of rats after sublingual drainage administration can reflect the degree of numbness in the tongue,which can provide reference for the study of tongue sensation of Aconiti Kusnezoffii Radix.

Objective To investigate the efficacy and safety of hypofractionated thoracic radiotherapy combined with EP chemotherapy in the treatment of limited-stage small-cell lung cancer (LS-SCLC). Methods A total of 117 patients with LS-SCLC were enrolled and randomly divided into test group (n=59) and control group (n=58). Patients in the experiment group were given hypofractionated thoracic radiotherapy combined with EP chemotherapy, while patients in the control group were given hyperfractionation radiotherapy combined with EP chemotherapy. Objective response rate (ORR), 2-year overall survival (OS), 2-year progression free survival (PFS), and immune cell level were used to evaluate clinical efficacy. We compared the incidence of side effects between the two groups. Results After the treatment, the ORR of patients in the test group was higher than that in the control group (P > 0.05). The mean OS and PFS of patients in the test group were significantly longer than those in the control group (P < 0.05). The levels of CD3⁺, CD4⁺, CD4⁺/CD8⁺, and NK cells in the test group were significantly higher, whereas the levels of CD8⁺ were significantly lower than those in the control group (P < 0.05). The incidence of radiation pneumonitis, radiation esophagitis, and severe dermatitis in the test group was significantly lower than that in the control group (P < 0.05). Conclusion Hypofractionated radiotherapy combined with EP chemotherapy for treatment of LS-SCLC can effectively improve the anticancer efficacy and patient survival, reduce the damage to the body's immune function, and alleviate adverse reaction of radiotherapy.

Objective:To investigate correlations between blood lipid levels and clinical characteristics of patients with psoriasis vulgaris (PsV) in Fujian province.Methods:Totally, 245 PsV patients were enrolled from Department of Dermatology of the First Affiliated Hospital of Fujian Medical University from March 2019 to March 2022, and 250 gender-, age-, and body mass index-matched health checkup examinees served as controls. Their biochemical indicators, such as blood lipids, liver function, and kidney function, were evaluated. Clinical data, such as disease courses, involvement of specific sites, history of smoking and alcohol consumption, and family history of psoriasis, were collected from the PsV patients, and correlations between these clinical data and dyslipidemia were analyzed. Measurement data were compared using t test or Mann-Whitney U test, and enumeration data were compared using chi-square test. Results:There were 122 (50.8%) patients with dyslipidemia in the PsV group and 94 (37.6%) in the control group, and the prevalence of dyslipidemia significantly differed between the two groups ( χ2 = 7.48, P = 0.006). The prevalence of hypo-high-density lipoprotein cholesterolemia was significantly higher in the PsV group (29.8%) than in the control group (18.8%; χ2 = 8.15, P = 0.004). The PsV group showed significantly decreased serum levels of total cholesterol (4.5[3.9, 5.2] mmol/L), high-density-lipoprotein cholesterol (1.1[1.0, 1.3] mmol/L), and apolipoprotein A1 (1.2[1.1, 1.4] g/L) compared with the control group (4.9[4.3, 5.4] mmol/L, 1.3[1.1, 1.5] mmol/L, 1.3[1.2, 1.5] g/L, respectively; all P < 0.001). The proportions of males, patients with a history of alcohol consumption, and patients with involvement of the palmoplantar sites were significantly higher in the PsV patients with dyslipidemia (92.6%, 13.1%, 13.8%, respectively) than in those without dyslipidemia (70.7%, 6.0%, 5.0%, respectively; all P < 0.001). Multifactorial logistic regression analysis showed that "male" and "BMI ≥ 25 kg/m 2" were independent risk factors for dyslipidemia in the PsV patients ( OR [95% CI]: 3.94 [1.74, 9.74], 3.18 [1.71, 6.09], respectively), and "involvement of the palmoplantar sites" was independently associated with increased risk of hyperlipidemia ( OR [95% CI]: 3.38 [1.18, 11.01]) . Conclusion:The prevalence of dyslipidemia was higher in PsV patients than in healthy populations, and PsV patients being males, having BMI ≥ 25 kg/m 2 and with involvement of palmoplantar sites may be prone to develop lipid metabolism disorders.

The knowledge of endocrine metabolic diseases represented by type 2 diabetes mellitus is highly specialized, complicated, and has many clinical guidelines. In this context, team based learning teaching combined with case teaching based on evidence-based medicine was applied in the actual class teaching. The class was divided into several groups and the students were encouraged to discuss and study from each other with the guidance of teachers. Consequently, students' learning interests and spirit of team-work were greatly enhanced, the way of thinking using evidence-based medicine and their ability to solve the practical clinical problems were also improved.

[Objective]To investigate the inhibitory effect of zoledronic acid(ZA) on osteolysis induced by human periprosthetic tissue in a novel animal model.[Method]Human periprosthetic tissue that was harvested from a patient receiving total hip revision was grafted on the calvaria bone of SCID beige mice. ZA was injected directly beneath the scalp of mice once,2 days post surgery. The mice were sacrificed 2 or 4 weeks after transplantation and the calvaria with grafted human tissue was collected for further detection.[Result]The grafted tissues were found survive for at least 4 weeks in the animals. Bone collagen collapse of the calvaria caused by periprosthetic tissue was demonstrated by HE staining. Significantly higher level of TNF-?,IL-6,RANKL and CPK both in gene expression and protein release were detected in PT grafted group,as compared with the control. Once administration of ZA remarkably reduced the expression of RANKL and CPK in both gene and protein level without affecting TNF-? and IL-6.[Conclusion]Once and local injection of ZA effectively inhibits the osteolysis induced by human periprosthetic tissue with a long lasting effect. The novel animal model could serve for evaluating the pharmaceutical effect on periprosthetic osteolysis.

Objective To screen and identify specific antigens of Taenia solium cysticercus, and predict the function of target proteins using bioinformatics method. Methods Patients infected with Taenia solium were dewormed by decoction arecae and pumpkin seeds to collect worms, and eggs were then prepared. Six three-way crossed hybrid pigs were randomly divided into experimental group and control group, and each experimental pig was infected with 80 000 T. solium eggs. Serum samples were collected at 40 days after infection. The total protein of T. solium cysticercus was separated by two-dimensional electrophoresis, and Western blotting was performed to find out distinct antigens. Proteins from the two groups were identified by ESI-Trap MS. Query in NCBI database was made to confirm function of the proteins. Results 207?9 spots were detected through Coomassie brilliant blue-stained gels with Mr 14 400-94 000 and pI 3.0-10.0. Western blotting showed 7 specific antigen spots with pool sera of infected pigs. Four of the 7 antigens with known functions were respectively ascribed to cytoskeletal actin-2(adult-specific), tropomyosin(cysticercus-specific), AF239799-1 annexin (cysticercus-specific) and actin-1(cysticercus-specific). Conclutions Three specific antigens of Taenia solium cysticercus have been identified.