Objective:To investigate the correlation of multi-slice spiral CT(MSCT)blood flow parameters including blood volume(BV),blood flow(BF),permeability surface(PS),mean transit time(MTT)and serum carbohydrate antigen 199(CA199)level with clinical pathological features of gastric cancer patients,and the diagnostic efficiency of their combined detection.Methods:A total of 58 patients with gastric cancer confirmed by pathological biopsy admitted to Suixian People's Hospital from Jun 2022 to Dec 2023 were collected as the gastric cancer group,and 58 patients with gastric benign lesions during the same period were collected as the benign control group.The MSCT blood flow parameters BV,BF,PS,MTT values,and serum CA199 levels were compared between the two groups and among different clinical pathological features.The correlation of BF,PS,and serum CA199 level with different clinical pathological features was analyzed.The diagnostic efficiency of the combined detection of BF,PS,and serum CA199 level for gastric cancer was analyzed.Results:The proportion of mass diameter≥5 cm,marginal obscurity,malignant niche,mucosal invasion and muscle invasion in the gastric cancer group were higher than those in the benign control group(P＜0.05).The BF,PS,and serum CA199 level in the gastric cancer group were higher than those in the benign control group(P＜0.05).No significant differences were found in BV and MTT between the two groups(P＞0.05).The BF,PS,and serum CA199 level in patients with stage Ⅰ-Ⅱ,middle and high differentiation,and no lymph node metastasis were lower than those in patients with stage Ⅲ-Ⅳ,low differentiation,and lymph node metastasis(P＜0.05).There were no significant differences in BV and MTT among different clinical pathological features(P＞0.05).Spearman correlation analysis showed that BF,PS and serum CA199 level were positively correlated with clinical stage and lymph node metastasis,and negatively correlated with differentiation degree(P＜0.05).The receiver operating characteristic(ROC)curve results showed that the AUC of combined detection of BF,PS,and serum CA199 level for diagnosing gastric cancer was 0.928,which was significantly higher than the AUCs of individual detection:BF(0.787),PS(0.829),and CA199(0.816).Conclusion:The MSCT blood flow parameters BF,PS,and serum CA199 level are all correlated with clinical pathological features of gastric cancer patients,and combined detection of these three indicators has high diagnostic efficiency for early diagnosis of gastric cancer.

This study aims to investigate the effects and mechanisms of the effective-compounds of Jinshui Huanxian formula (ECC-JHF) in improving pulmonary fibrosis. Animal experiments were approved by the Ethics Committee of the Animal Experiment Center of Henan University of Chinese Medicine (approval number: IACUC-202306012). The mouse model of pulmonary fibrosis was induced using bleomycin (BLM). Hematoxylin-eosin (H&E) staining was used to detect the histopathological changes of lung tissues. Masson staining was used to assess the degree of fibrosis in lung tissues. Immunofluorescence (IF) and real-time quantitative PCR (qPCR) were performed to measure the expression of collagen type I (COL I), α-smooth muscle actin (α-SMA), fibronectin (FN), interleukin (IL)-1β, IL-6, and tumor necrosis factor α (TNF-α) in lung tissues. Flow cytometry (FCM) was employed to detect the proportion of M1 and M2 macrophages in the bronchoalveolar lavage fluid (BALF) of mice. IF and qPCR were also used to detect the expression of lipase family member N (LIPN) in lung tissues. Free fatty acid assay kit was used to detect the level of free fatty acids in lung tissue. Bone marrow-derived macrophages (BMDMs) were treated with interleukin-4 (IL-4) to induce M2 polarization. FCM was used to measure the proportion of CD206⁺ M2 macrophages. IF was utilized to detect LIPN expression and lipid droplet decomposition. The results showed that in BLM-induced pulmonary fibrosis mice, ECC-JHF significantly attenuated BLM-induced alveolar inflammation and collagen deposition, inhibited fibroblast activation in lung tissues, and decreased the proportion of M2 macrophages in BALF. It also significantly suppressed LIPN expression and free fatty acid level in lung tissues. In the IL-4 induced BMDMs M2 polarization model, ECC-JHF significantly inhibited the proportion of CD206⁺ M2 macrophages, down-regulated the expression of LIPN, and blocked lipid droplet catabolism. These results suggest that ECC-JHF may alleviate bleomycin-induced pulmonary fibrosis by inhibiting lipid droplet decomposition and M2 macrophage polarization.

As the number of patients with compromised immune function increases and fungal resistance develops, so does the risk of contracting deadly fungi in humans. Both fungi and humans are eukaryotes, so identifying unique targets for antifungal drug development is difficult. In addition, the existing antifungal drugs are limited by toxicity, drug interaction and drug resistance in practical application, which leads to the increasing incidence and fatal rate of fungal infections. Therefore, it is urgent to develop new antifungal drugs. The semi-synthetic technology using microbial fermentation products from natural sources as lead compounds has become the most used method in structural modification of antifungal drugs due to its advantages of few reaction steps and easy operation. This paper will introduce the current status of natural antifungal drugs in clinical use, as well as the latest progress in the research and development of new semi-synthetic antifungal drugs, and summarize their mechanism of action, structural modifications, advantages and disadvantages, so as to provide reference for the subsequent development of new antifungal drugs.

Background: s/Aims: Sarcomatoid hepatocellular carcinoma (HCC) is a rare histological subtype of HCC characterized by extremely poor prognosis; however, its molecular characterization has not been elucidated. Methods: In this study, we conducted an integrated multiomics study of whole-exome sequencing, RNA-seq, spatial transcriptome, and immunohistochemical analyses of 28 paired sarcomatoid tumor components and conventional HCC components from 10 patients with sarcomatoid HCC, in order to identify frequently altered genes, infer the tumor subclonal architectures, track the genomic evolution, and delineate the transcriptional characteristics of sarcomatoid HCCs. Results: Our results showed that the sarcomatoid HCCs had poor prognosis. The sarcomatoid tumor components and the conventional HCC components were derived from common ancestors, mostly accessing similar mutational processes. Clonal phylogenies demonstrated branched tumor evolution during sarcomatoid HCC development and progression. TP53 mutation commonly occurred at tumor initiation, whereas ARID2 mutation often occurred later. Transcriptome analyses revealed the epithelial–mesenchymal transition (EMT) and hypoxic phenotype in sarcomatoid tumor components, which were confirmed by immunohistochemical staining. Moreover, we identified ARID2 mutations in 70% (7/10) of patients with sarcomatoid HCC but only 1–5% of patients with non-sarcomatoid HCC. Biofunctional investigations revealed that inactivating mutation of ARID2 contributes to HCC growth and metastasis and induces EMT in a hypoxic microenvironment. Conclusions We offer a comprehensive description of the molecular basis for sarcomatoid HCC, and identify genomic alteration (ARID2 mutation) together with the tumor microenvironment (hypoxic microenvironment), that may contribute to the formation of the sarcomatoid tumor component through EMT, leading to sarcomatoid HCC development and progression.

Background: s/Aims: Sarcomatoid hepatocellular carcinoma (HCC) is a rare histological subtype of HCC characterized by extremely poor prognosis; however, its molecular characterization has not been elucidated. Methods: In this study, we conducted an integrated multiomics study of whole-exome sequencing, RNA-seq, spatial transcriptome, and immunohistochemical analyses of 28 paired sarcomatoid tumor components and conventional HCC components from 10 patients with sarcomatoid HCC, in order to identify frequently altered genes, infer the tumor subclonal architectures, track the genomic evolution, and delineate the transcriptional characteristics of sarcomatoid HCCs. Results: Our results showed that the sarcomatoid HCCs had poor prognosis. The sarcomatoid tumor components and the conventional HCC components were derived from common ancestors, mostly accessing similar mutational processes. Clonal phylogenies demonstrated branched tumor evolution during sarcomatoid HCC development and progression. TP53 mutation commonly occurred at tumor initiation, whereas ARID2 mutation often occurred later. Transcriptome analyses revealed the epithelial–mesenchymal transition (EMT) and hypoxic phenotype in sarcomatoid tumor components, which were confirmed by immunohistochemical staining. Moreover, we identified ARID2 mutations in 70% (7/10) of patients with sarcomatoid HCC but only 1–5% of patients with non-sarcomatoid HCC. Biofunctional investigations revealed that inactivating mutation of ARID2 contributes to HCC growth and metastasis and induces EMT in a hypoxic microenvironment. Conclusions We offer a comprehensive description of the molecular basis for sarcomatoid HCC, and identify genomic alteration (ARID2 mutation) together with the tumor microenvironment (hypoxic microenvironment), that may contribute to the formation of the sarcomatoid tumor component through EMT, leading to sarcomatoid HCC development and progression.

Background: s/Aims: Sarcomatoid hepatocellular carcinoma (HCC) is a rare histological subtype of HCC characterized by extremely poor prognosis; however, its molecular characterization has not been elucidated. Methods: In this study, we conducted an integrated multiomics study of whole-exome sequencing, RNA-seq, spatial transcriptome, and immunohistochemical analyses of 28 paired sarcomatoid tumor components and conventional HCC components from 10 patients with sarcomatoid HCC, in order to identify frequently altered genes, infer the tumor subclonal architectures, track the genomic evolution, and delineate the transcriptional characteristics of sarcomatoid HCCs. Results: Our results showed that the sarcomatoid HCCs had poor prognosis. The sarcomatoid tumor components and the conventional HCC components were derived from common ancestors, mostly accessing similar mutational processes. Clonal phylogenies demonstrated branched tumor evolution during sarcomatoid HCC development and progression. TP53 mutation commonly occurred at tumor initiation, whereas ARID2 mutation often occurred later. Transcriptome analyses revealed the epithelial–mesenchymal transition (EMT) and hypoxic phenotype in sarcomatoid tumor components, which were confirmed by immunohistochemical staining. Moreover, we identified ARID2 mutations in 70% (7/10) of patients with sarcomatoid HCC but only 1–5% of patients with non-sarcomatoid HCC. Biofunctional investigations revealed that inactivating mutation of ARID2 contributes to HCC growth and metastasis and induces EMT in a hypoxic microenvironment. Conclusions We offer a comprehensive description of the molecular basis for sarcomatoid HCC, and identify genomic alteration (ARID2 mutation) together with the tumor microenvironment (hypoxic microenvironment), that may contribute to the formation of the sarcomatoid tumor component through EMT, leading to sarcomatoid HCC development and progression.

Objective:To investigate the correlation of multi-slice spiral CT(MSCT)blood flow parameters including blood volume(BV),blood flow(BF),permeability surface(PS),mean transit time(MTT)and serum carbohydrate antigen 199(CA199)level with clinical pathological features of gastric cancer patients,and the diagnostic efficiency of their combined detection.Methods:A total of 58 patients with gastric cancer confirmed by pathological biopsy admitted to Suixian People's Hospital from Jun 2022 to Dec 2023 were collected as the gastric cancer group,and 58 patients with gastric benign lesions during the same period were collected as the benign control group.The MSCT blood flow parameters BV,BF,PS,MTT values,and serum CA199 levels were compared between the two groups and among different clinical pathological features.The correlation of BF,PS,and serum CA199 level with different clinical pathological features was analyzed.The diagnostic efficiency of the combined detection of BF,PS,and serum CA199 level for gastric cancer was analyzed.Results:The proportion of mass diameter≥5 cm,marginal obscurity,malignant niche,mucosal invasion and muscle invasion in the gastric cancer group were higher than those in the benign control group(P＜0.05).The BF,PS,and serum CA199 level in the gastric cancer group were higher than those in the benign control group(P＜0.05).No significant differences were found in BV and MTT between the two groups(P＞0.05).The BF,PS,and serum CA199 level in patients with stage Ⅰ-Ⅱ,middle and high differentiation,and no lymph node metastasis were lower than those in patients with stage Ⅲ-Ⅳ,low differentiation,and lymph node metastasis(P＜0.05).There were no significant differences in BV and MTT among different clinical pathological features(P＞0.05).Spearman correlation analysis showed that BF,PS and serum CA199 level were positively correlated with clinical stage and lymph node metastasis,and negatively correlated with differentiation degree(P＜0.05).The receiver operating characteristic(ROC)curve results showed that the AUC of combined detection of BF,PS,and serum CA199 level for diagnosing gastric cancer was 0.928,which was significantly higher than the AUCs of individual detection:BF(0.787),PS(0.829),and CA199(0.816).Conclusion:The MSCT blood flow parameters BF,PS,and serum CA199 level are all correlated with clinical pathological features of gastric cancer patients,and combined detection of these three indicators has high diagnostic efficiency for early diagnosis of gastric cancer.

The prevalence of Lyme disease in endogenous populations in Urumqi,Xinjiang was investigated.In total,795 serum samples were collected from residents of three townships in the surrounding area of Urumqi City from 2022 to 2023,which included 383 from Lucaogou Town,145 from Shuixigou Town,and,267 from Tori Township.Serum levels of IgG and IgM antibodies were screened with an enzyme linked immunosorbent assay(ELISA)and confirmed by western blot(WB)analysis.Clinical data of WB-positive indi-viduals were collected and comprehensive analysis was con-ducted for case diagnosis.The chi square test was used for statistical analysis of the results and the P＜0.05 was consid-ered statistically significant.In total,110(13.84％)of 795 samples were positive.The positivity rates was higher in females than males[16.26％(73/449)vs.10.69％(37/346),x2=5.076,P=0.024],while there was no significant difference among age groups(x2=2.569,P=0.766).The positivity rates for serum antibodies in Shuixigou Town,Lucaogou Town,and Tuoli Township were 17.98％(48/267),14.48％(21/145),and 10.70％(41/383),respectively,with a significantly higher rate in Tuoli Township than Lucaogou Town(x2=7.041,P=0.008).Of 110 individuals who were initially positive for IgG and IgM antibodies with the ELISA,82(10.31％)were con-firmed positive by WB analysis.In total,20(2.52％)patients were diagnosed with Lyme disease based on clinical manifesta-tions.Lyme disease is epidemic among the population in Urumqi,as the infection rate is higher than the national average.Hence,continued surveillance is recommended for prevention of Lyme disease.

Air Pollution/analysis* ; Environmental Exposure/analysis* ; China/epidemiology* ; Air Pollutants/analysis* ; Particulate Matter/analysis* ; Environmental Monitoring

Objective:To explore the difference of lymphocyte subsets in peripheral blood(PB)between aplastic anemia(AA)and hypoplastic myelodysplastic syndrome(hypo-MDS)patients,meanwhile to compare the clinical parameters obtained from PB and bone marrow(BM).Methods:The lymphocyte subsets in hypo-MDS(n=25)and AA(n=33)patients were investigated by flow cytometry.Meanwhile,the differences in PB cell counts,biochemical indicators,BM cell counts and abnormal chromosomes between the two groups were analyzed.Results:The percentage of CD8+T cells in A A group was significantly higher than that in hypo-MDS group(P=0.001),while the percentage of CD4+T cells and the CD4+/CD8+ratio in AA group were obviously lower than those in hypo-MDS group(P=0.015 and0.001,respectively).Furthermore,the proportion of CD4+andCD8+activated T(TA)cells,and memory Tregs in AA group was distinctly lower than those in hypo-MDS group(P=0.043,0.015 and 0.024,respectively).Nevertheless,the percentage of CD8+naive T(TN)cells in AA patients was remarkably higher(P=0.044).And hypo-MDS patients had declined lymphocyte counts(P=0.025),increased levels of total bilirubin(TBil),lactate dehydrogenase(LDH),vitamin B12 and proportion of BM blasts than AA patients(P=0.019,0.023,0.027 and 0.045,respectively).Conclusion:In this study it was confirmed that the percentages of CD4+and CD8+TA cells,memory Tregs and CD8+TN cells were significantly different between AA and hypo-MDS patients,which provide an essential basis for the identification of these two diseases.