Objective To study the relationship between liver fibrosis degree and widths of portal vein(TPV) and spleen vein(SPV).Method Liver specimens from 151 patients with chronic viral hepatitis were divided into 4 groups from S 1 to S 4 according to the liver fibrosis degree.The diameters of TPV and SPV were measured by ultrasonic B.Results The diameters of TPV and SPV of groups S 1,S 2,S 3 and S 4 were (11 89?1 39)mm and (5 78?1 33)mm,(12 22?1 19)mm and (6 25?1 28)mm,(12 43?1 26)mm and (7 03?1 54)mm,(13 07?1 23)mm and (8 0?1 80)mm,respectively.The differences of diameter of TPV between group S 4 and group S 1,S 2 were significant(all P

Objective To study the SEN-V DNA in liver tissue from patients with non A to E hepatitis in Guangzhou area. Methods A set of primers according to the original sequence from GenBank were designed , and SEN-V DNA sequence was amplified by in situ-PCR in liver tissue. Results Two of 6 patients with non A to E hepatitis were found to be SEN-V-DNA positive in liver tissue. While 8 patients with HBV infection and 6 of other liver diseases including 2 of autoimmune liver disease, 1 of Dubin Johnson syndrome, 1 of fatty liver, 1 of the primary biliary cirrhosis and 1 of drug induced hepatitis were all SEN-V DNA negative. SEN-V DNA were mainly distributed in liver cell cytoplasm, partially in nucleus. There presented the phenomenon of cell fuse. SEN-V positive cells accounted for about 3%～10% of total cells.Conclusions SEN-V can be found in liver tissue of patients with non A to E hepatitis in south China. Maybe it can cause liver damage.

【Objective】 To study the relationship of pathologic changes and serologic markers of fibrosis in patients with viral hepatitis. 【Me thods】 Liver s pecimens were obtained by percutaneous needle biopsy under color Doppler ultras ound guidance in 299 patients with viral hepatitis. The specimens were stained b y hematoxylin and eosin (HE), Gordon and Sweet's reticulum methods (RT), in orde r to determine the degree and the stage of pathologic changes with microscopy. H yaluronic acid(HA), collagen type Ⅳ(Ⅳ-C) and human precollagen type Ⅲ（HPCⅢ ）as serum fibrous markers were detected by radioimmunoassay. 【Results】 The se rum levels serologic markers were slightly increased in 97 patients with mild ch ronic hepatitis, moderately increased in 126 patients with moderate chronic hepa titis, and significantly increased in 29 severe cases and 47 subjects with cirrh osis. Both the grade of inflammatory activity and the stage of fibrosis were clo sely related to the levels of serum fibrous markers. 【Conclusion】 Chronic vira l hepatitis pathologic feature and levels of serum markers of fibrosis change al ong with clinical process of patients. The combination of liver biopsy and detec tion of serum markers of fibrosis might be highly valuable for the diagnosis.

【Objective】To construct the c-myb antisense RNA recombinant retroviral vector and its packaging cell line.【Methods】The segment of c-myb gene was cloned into pUC19 with TA cloning method after amplication by RT-PCR,and then was subcloned into retroviral vector pDOR.The recombinant retroviral vector named pDOR-myb was transfected into retroviral package cell line PA317 after selection with G418.【Results】Sequencing data indicated that the c-myb gene was exactly identical to the sequence in the GenBank.The segment of c-myb gene was inserted directionally into pDOR.Resistant colonies were obtained and the titers of pDOR-myb were 5.2×104～9.5×104 CFU/mL.【Conclusion】The recombinant retroviral vector containing c-myb gene is successfully constructed and its packaging cell line PA317/pDOR-myb was established.

98%. In the pDOR-myb infected HSCs, c-myb expression levels, the cell proliferation, and ? 1-Ⅰ collagen mRNA expression were repressed significantly. CONCLUSIONS: c-myb plays a key role in the activation and proliferation of HSC. c-myb antisense RNA can inhibit cell proliferation and ? 1-Ⅰ collagen mRNA expression in the infected HSC. These data suggest that inhibition of c-myb gene expression would be a potential way for the treatment of liver fibrosis.

Objective To study clinical characters and prognosis of AIDS patients with opportunistic infections in Sichuan prov-ince .Methods We performed an retrospective analysis of 1 465 AIDS patients with opportunistic infections who were admitted into the transmitted disease hospital of Chengdu in recent 10 years .Results The overall mortality during hospitalization was 15 .49% . The leading cause of death was respiratory failure due to pneumonia (n=150 ,74 .62% ) or meningitis(n=47 ,23 .86% ) .Descending rank order of common opportunistic infections were respiratory tract ,the mouth swallows ,central nervous system ,gastrointestinal tract skin ,blood system .Descending rank order of common sites of infections were respiratory tract ,oropharynx ,central nervous system ,gastrointestinal tract skin ,reproductive tract .The multiple infections are common :more than 50% of patients suffering from two or more infections(50 .77% ) .Complexity of infection sites :42 .18% dual infection sites and 17 .20% three or more infec-tion sites .Conclusion The opportunistic infections disease spectrum of AIDS in Sichuan area has its own characteristics :multiple infections and multiple infections sites are both common ,death risks are high ,conditions of patients are severe generally ,and respir-atory failure is the main cause of death .

Autoantibodies ; blood ; immunology ; Female ; Hepatitis, Viral, Human ; blood ; immunology ; Humans ; Liver Cirrhosis, Biliary ; blood ; immunology ; Male ; Mitochondria ; immunology

Objective:To investigate the relationship between serum 25 hydroxyvitamin-D3, soluble advanced glycation end product receptor (sRAGE), nucleotide binding oligomerization domain like receptor 3 (NLRP3) mRNA and cognitive impairment in hypertensive intracerebral hemorrhage (HICH).Methods:143 patients with HICH treated in the Affiliated Hospital of Guangdong Medical University from July 2016 to July 2019 were selected as the research objects. Among the 143 patients with HICH, there were 68 patients with cognitive impairment (cognitive impairment group) and 75 patients without cognitive impairment (control group). The age, gender, amount of intracerebral hemorrhage, bleeding site, blood pressure, blood glucose and blood lipid of the two groups were counted, and the mRNA levels of 25 hydroxyvitamin-D3, sRAGE and NLRP3 were detected. Multivariate logistic regression analysis was used to analyze the risk factors of cognitive impairment in patients with HICH.Results:There were no significant differences in age, gender, smoking, education, bleeding site, diabetes rate, triglyceride (TG), total cholesterol (TC), low density lipoprotein cholesterol (LDL-C), and high density lipoprotein cholesterol (HDL-C) between cognitive dysfunction group and control group ( P>0.05); There were significant differences in bleeding volume and neurological function defect score (NIHSS) score between cognitive impairment group and control group ( P<0.05); The level of 25 hydroxyvitamin-D3 in cognitive impairment group was lower than that in control group ( P<0.05), and the expression level of NLRP3 mRNA was higher than that in control group ( P<0.05). There was no significant difference in sRAGE between the two groups ( P>0.05); Logistic regression analysis showed that the decrease of 25-hydroxyvitamin-D3 level, the increase of bleeding volume and NIHSS score were independent risk factors for cognitive impairment in HICH patients ( P<0.05). Conclusions:Decreased serum 25 hydroxyvitamin-D3 levels may increase the risk of cognitive impairment in patients with HICH.

Phosphodiesterase-4 (PDE4) functions as a catalyzing enzyme targeting hydrolyzation of intracellular cyclic adenosine monophosphate (cAMP) and inhibition of PDE4 has been proven to be a competitive strategy for dermatological and pulmonary inflammation. However, the pathological role of PDE4 and the therapeutic feasibility of PDE4 inhibitors in chronic ulcerative colitis (UC) are less clearly understood. This study introduced apremilast, a breakthrough in discovery of PDE4 inhibitors, to explore the therapeutic capacity in dextran sulfate sodium (DSS)-induced experimental murine chronic UC. In the inflamed tissues, overexpression of PDE4 isoforms and defective cAMP-mediating pathway were firstly identified in chronic UC patients. Therapeutically, inhibition of PDE4 by apremilast modulated cAMP-predominant protein kinase A (PKA)-cAMP-response element binding protein (CREB) signaling and ameliorated the clinical symptoms of chronic UC, as evidenced by improvements on mucosal ulcerations, tissue fibrosis, and inflammatory infiltrations. Consequently, apremilast maintained a normal intestinal physical and chemical barrier function and rebuilt the mucosal homeostasis by interfering with the cross-talk between human epithelial cells and immune cells. Furthermore, we found that apremilast could remap the landscape of gut microbiota and exert regulatory effects on antimicrobial responses and the function of mucus in the gut microenvironment. Taken together, the present study revealed that intervene of PDE4 provided an infusive therapeutic strategy for patients with chronic and relapsing UC.