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Beijing, China

Zhu B.,302 Military Hospital
Zhonghua shi yan he lin chuang bing du xue za zhi = Zhonghua shiyan he linchuang bingduxue zazhi = Chinese journal of experimental and clinical virology | Year: 2012

To study the clinical features of hepatitis E virus-related liver failure. 134 patients with HEV-related liver failure were analyzed retrospectively. HEV-related liver failure accounted for 8.45 percent of the total number of hepatitis E patients in the hospital. Of the 134 patients, 68 were infected with simple HEV, 66 had the superinfection with HBV. The average age of simple HEV-related liver failure patients (56.12 +/- 14.29) was higher than that of HBV superinfectiong liver failure patients (P < 0.05). The ratio of elderly patients (> or = 60 years) in simple HEV-related liver failure patients (45.59%) was significantly higher than that of the other group (13.64%, P < 0.05). The ratio of direct bilirubin/total bilirubing (0.72 +/- 0.07, 0.69 +/- 0.08), and serum alanine aminotransferase [(1250.90 +/- 1593.97) U/L, (616.26 +/- 797.62) U/L] were significantly higher in simple HEV-related liver failure patients than in HBV superinfectiong liver failure patients (P < 0.05), but the total bilirubing had no significant difference (P > 0.05). The disease outcome and stage were no-significant difference in the two groups (P > 0.05). CONCLUSION; Simple HEV-related liver failure patients may have older age, higher aminotransferase, higher ratio of direct bilirubin/total bilirubin, but disease outcome and stage were no-significant difference in the two groups. Source

Lin J.,Beijing Institute of Biotechnology | Lin J.,Chinese PLA General Hospital | Qin X.,Beijing Institute of Biotechnology | Zhu Z.,Chinese PLA General Hospital | And 6 more authors.
IUBMB Life | Year: 2012

Four and a half LIM domain (FHL) proteins belong to a family of LIM-only proteins that have been implicated in the development and progression of various types of cancers. However, the role of FHL proteins in tumor angiogenesis remains to be elucidated. Herein, we demonstrate that FHL1-3 decrease the promoter activity and expression of vascular endothelial growth factor (VEGF), the key regulator of angiogenesis in cancer growth and progression as well as an important target gene of the transcription factor hypoxia-inducible factor 1 (HIF1α/HIF1β). FHL1-3 interacted with HIF1α both in vitro and in vivo. A single LIM domain of FHL1 was sufficient for its interaction with HIF1α. FHL1 interacted with the HIF1α region containing basic helix-loop-helix (bHLH) motif and PER-ARNT-SIM domain, both of which aid in dimerization with HIF1β and DNA binding. FHL1-3 inhibited HIF1 transcriptional activity and HIF1-mediated VEGF expression in a hypoxia-independent manner. Moreover, FHL1 blocked HIF1α-HIF1β heterodimerization and HIF1α recruitment to the VEGF promoter. These data suggest that FHL proteins are involved in negative regulation of VEGF possibly by interfering with the dimerization and DNA binding of HIF1 subunits and may play an important role in tumor angiogenesis. Copyright © 2012 International Union of Biochemistry and Molecular Biology, Inc. Source

Zhu B.,302 Military Hospital
Zhonghua shi yan he lin chuang bing du xue za zhi = Zhonghua shiyan he linchuang bingduxue zazhi = Chinese journal of experimental and clinical virology | Year: 2011

To study the clinical characteristics of hepatitis B virus-related acute-on-chronic liver failure patients with familial aggregation. 275 patients with hepatitis B virus--related acute-on-chronic liver failure were investigated. The patients were divided into familial aggregation and non-familial aggregation group basis on their epidemiological features. Clinical data and biochemical indicators between the two groups were analyzed statistically. 93 of 275 patients (33.82%) case were family aggregation. There was no significant difference compared with chronic hepatitis B patients (38.3%). The mean age of the two groups was 45.98 and 43.61 years old, respectively (P > 0.05). The rates of liver cirrhosis in family aggregation group were significant higher than non-familial aggregation group (73.91% vs 58.24%, p < 0.05). Serum total (TBil) and prothrombin activities (PTA) were no significant difference between the two groups, but ALT level in familial aggregation group was much higher (407.80 U/L vs 256.45 U/L, P 0.05). Familial aggregation were not related to acute-on-chronic liver failure in chronic HBV hepatitis patients. But the rate of liver cirrhosis were higher in patients with familial aggregation. Source

Qin T.,Chinese National Institute for Communicable Disease Control and Prevention | Xia J.,302 Military Hospital | Ren H.,Chinese National Institute for Communicable Disease Control and Prevention | Zhou H.,Chinese National Institute for Communicable Disease Control and Prevention | And 2 more authors.
Journal of Medical Microbiology | Year: 2012

Here, we describe four cases of laboratory-confirmed Legionella infection. Case 1 was a culture-confirmed case of Legionella infection in a patient with liver cirrhosis. Following this, three other liver cirrhosis cases (cases 2-4) were diagnosed with Legionella infection as confirmed by quantitative real-time PCR. The cause of the pneumonia was determined as Legionella pneumophila by positive direct fluorescence assay and isolation of the causative agent. The infections were successfully treated by administering appropriate antibiotics. These cases highlight the importance of considering Legionella as a cause of pneumonia in patients with liver disease and lung infections. The strain of L. pneumophila isolated from Case 1 was characterized as being closely related to strain Philadelphila-1 (ATCC 33152 T), which is the type strain of the species, belonging to serogroup 1 and sequence type 36 (ST36), and is known to be distributed worldwide. To our knowledge, this is the first report of Legionella infection on the Chinese mainland for a decade and highlights the need to raise awareness of diagnostic methods for Legionnaires' disease in China and the requirement for further epidemiological surveillance strategies to monitor this disease. © 2012 SGM. Source

Liu H.-Q.,PLA Fourth Military Medical University | Qiu Y.,PLA Fourth Military Medical University | Mu Y.,302 Military Hospital | Zhang X.-J.,Shaanxi Provincial Peoples Hospital | And 8 more authors.
Nutrition Research | Year: 2013

Dietary ratios of n-3/n-6 polyunsaturated fatty acids (PUFAs) have been implicated in controlling markers of metabolic disorders, including obesity, insulin resistance (IR), inflammation, and lipid profiles, which are also presumed to be partly related to type 2 diabetes mellitus (T2DM). However, molecular mechanisms of the different PUFAs related to metabolic disorders have not been systematically addressed. The present study aimed to investigate the impact of dietary n-3/n-6 PUFA ratios on obesity and IR and, further, to determine the underlying mechanisms. For 16 weeks, 32 SD male rats, randomly divided into four groups (n = 8 per group), received one of the following diets: normal chow, high saturated fatty acid (SFA), high n-3/n-6 PUFA ratio (1:1, PUFA1:1), or low n-3/n-6 PUFA ratio (1:4, PUFA1:4). Following the experimental diet period, metabolic parameters related to obesity and IR were measured. Compared to SFA diet-fed rats, PUFA1:1 diet-fed rats exhibited decreased body and visceral fat weight, lowered blood lipids, and improved glucose tolerance and insulin sensitivity. Interestingly, these changes were accompanied with decreased expression levels of circulating pro-inflammatory cytokines, including tumor necrosis factor α, interleukin-6, and C-reactive protein. Moreover, the TLR4 protein and mRNA levels were markedly down-regulated by PUFA1:1 compared with SFA; however, PUFA1:4 diet-fed rats failed to exhibit these changes. Cumulatively, our data highlight a role for a PUFA1:1 diet in the prevention of obesity and related metabolic disorders by suppressing the activation of TLR4, a critical modulator of pro-inflammatory cytokines. © 2013 Elsevier Inc. Source

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