ObjectiveTo investigate sleep disorder of patients with depression and find out the regularity.Methods78 depression cases in the east-region of Shenyang were evaluated by Pittsburgh Sleep Quality Index (PSQI) questionnaire and mental health symptom checklist-90 (SCL-90). The results were contrasted with normal control group.Results63 depression cases (80%) had sleep disorder (PSQI scores≥8) and were significantly higher than normal control group. The PSQI evaluation showed that sleep quality, enter-sleep time, sleep efficiency, sleep disorder, hypnotige drugs, function of daytime and total scores of PSQI of the depression group were significantly higher than that of normal control group (P<0.05～0.01). The SCL-90 test showed that scores of somatic, obsessive, depressive, anxiety, phobia, paranoid and mental-illness, etc. and total quota of bad-sleep quality group were significantly higher than that of the fine-sleep quality group (P<0.05～0.01).ConclusionDepression patients have significantly descent in sleep quality, latter is often closely related to the mental psychotic expressiveness of somatic, obsession, depression, anxiety, phobia, etc.

Objective To study the distribution of IL-10 and TNF gene polymorphisms in patients with gastroduodenal diseases in Hubei Han ethnic and their association with Helicobacter pylori (Hp) infection. Methods Six hundred and five patients with gastroduedenal diseases (196 chronic gastritis, 189 gastroduodenal ulcer and 220 gastric cancer) as well as 624 healthy controls were genotyped with PCR-RFLP method for IL-10-1082,-819,-592 and TNFα-308, lymphotoxin-α (LTα) Nco Ⅰ and AspH Ⅰ gene polymorphisms. Hp infection status was determined with ELLS& Results (1) There was significant difference of IL-10-1082 AG + GG genotype among the gastric cancer group with the non-malignant gastric diseases groups and healthy control group (P <0. 05). There was no significant difference of IL-10-592 and -819 gene polymorphisms among gastric cancer patients,non-malignant gastric disease patients and healthy controls (P>0. 05). The genotype frequencies of IL-10-819 were the same as those of IL-10-592. (2) Frequency of IL-10-1082 AG + GG genotype in gastric cancer patients with positive Hp was significantly higher than that in the other three groups (P < 0. 05). (3) Frequency of LTα Nco I AG genotype in gastric cancer patients with Hp infection was signiilcandy higher than that in Hp positive healthy controls (P < 0. 05). There were no other associations between TNFα-308, LTα Nco Ⅰ and AspH Ⅰ gene polymorphisms and Hp infection in gastroduodenal diseases. Conclusions (1) Allele AG + GG of IL-10-1082 was associated with gastric cancer in Han nationality of Hubei province. (2) IL-10-1082 AG + GG,LTct Nco ⅠAG heterozygous genotype may be associated with Hp infection in patients with gastric cancer in Han nationality of Hubei province.

Anemia, Hemolytic, Congenital ; etiology ; Female ; Hepatitis ; complications ; Humans ; Infant ; Syndrome

Objectives:To translate the English version of Quality of Life Questionnaire of Stomach 22 into Chinese,and to test the reliability and validity of the Chinese Version of QLQ-STO22.Methods:From 1st June to 31st December,2003,140 patients with gastric cancer were sampled as study participants in three hospitals using cluster sampling method.All participants were interviewed with QLQ-STO22 Chinese version by the investigators who were trained in advance.Results:Nearly all ICCs of scales of STO22 were above 0.75;the split-half reliability coefficient is 0.78 and the Cronbach'a coefficient is 0.80.These results proved that the questionnaires had good test-retest reliability,split-half reliability and internal consistency.Three common factors were extracted by factor analysis,which ccould account for more than 60% of total variance and factor loads of the three common factors were above 0.5 in related items.Conclusion:QLQ-STO22 has good reliability and validity,which is available for the study of life quality among Chinese gastric cancer patients.

italic>γ-Aminobutyric acid (GABA) is a crucial inhibitory neurotransmitter found in various cells in the human body. While the GABAergic system is typically associated with the nervous system, recent research has revealed that immune cells and tumor cells also express components of this system. In the tumor microenvironment (TME), GABA is secreted to act extracellularly on other cells. GABA is metabolized via the GABA shunt and is involved in the tricarboxylic acid (TCA) cycle by generating succinate, which can provide energy for tumor cells. Activation of GABA receptors (GABARs) is a major pathway through which GABA participates in the regulation of antitumor immune responses. The activation of GABA type A receptors (GABA_ARs) can inhibit the activation and proliferation of T cells, elicit anti-inflammatory macrophages, and promote tumor cell growth and migration, while activation of GABA type B receptors (GABA_BRs) is generally considered to inhibit cancer cell migration and induce cancer cell apoptosis. In general, receptor activation inhibits immune cells, but the effect on tumor cells varies. Additionally, the downregulation of the expression levels of GABA transporters (GATs) is involved in tumor progression. Although antagonists of GABA metabolism and drugs that act on GABA receptors are considered therapeutic drugs for tumors, there have been few clinical studies conducted on them.

To unveil genetic variations between the predominant soybean mosaic virus (SMV) strains in China and in the USA, as well as to reveal the potential relevance between the similarity of gene sequences and the virulence of the viruses, we isolated and sequenced the coat protein (CP) gene of Chinese SMV strain SC7 by RT-PCR and compared the SC7 sequence with those of SMV strains from the USA. Analysis is showed that the CP gene of SC7 was 795 nucleotides in length and encoded 265 in amino acids'. The CP gene of SC7 and those of the strains from the USA exhibited 4%-5% nucleotide diversity and 1%-2% diversity amino acids. The conserved amino-acid sequence associated with aphid spread in the USA strains was DAG, and corresponded to DAD in SC7. The virulence of SC7 was greater than that of the SMV strains from the USA. Nevertheless, no clear relationships between sequence similarity of the CP genes from different strains and their virulence on differential hosts were found.
Amino Acid Sequence ; Capsid Proteins ; genetics ; China ; Molecular Sequence Data ; Mosaic Viruses ; Soybeans ; virology ; United States

Pulmonary arterial hypertension (PAH), also named as a cancer of cardiovascular disease, is a rare disease and has complicated pathogenesis. Recently, there are more understandings of PAH pathogeneses. According to the pathogenesis and active pathways, the clinically used drugs are classified into several groups incluidng prostacyclin analogues and prostacyclin receptor agonists, endothelin receptor antagonists, phosphodiesterase-5 inhibitors, soluble guanylate cyclase inhibitors, etc. To elevate the efficacy of the drugs, numerous drug delivery systems are developed. This review mainly summarized the pathological mechanism of PAH, drugs and drug delivery approaches in the treatment of PAH.

Objective To evaluate a new system,Vitek 2 Compact,for identification of bacteria and yeasts.Methods 185 clinical isolates of Peking Union Medical College Hospital,including 69 gram- positive strains,66 gram-negative strains and 50 yeasts,and 50 reference strains in our laboratory,including 25 gram-positive and gram-negative strains respectively,were studied.All the strains were identified by Vitek 2 Compact with GP,GN or YST identification cards.The API method was used as the reference method.Results Among the 93 gram-positive strains,85 strains(91.40%)were correctly identified, including 5 low discrimination identified strains,and 8 strains(8.60%)were correctly identified to the genus level,but misidentified to the species level.About 90% of gram-positive strains were identified within 7 h.Out of 91 gram-negative strains,90 strains(98.90%)were correctly identified,with 5 low discrimination identified strains,only 1 strain(1.1%)was correctly identified to the genus level,but misidentified to the species level.Above 90% of Enterobacteriaceae were identified within 5 h,and over 90% of nonfermenting bacteria were identified within 10 h.In the 50 strains of yeasts,46 strains(92%) were correctly identified,including 8 low discrimination identified strains,and 4 strains(8%)were correctly identified to the genus level,but misidentified to the species level.In all the yeasts,45 strains (90%)were identified in 18.25 h,and another 5 strains(10%)were identified in 18.50 h.Conclusions As Vitek 2 Compact system can give us reliable identification results of clinically relevant bacteria and yeasts,together with its significant reduction of handling time,it will definitely become a powerful tool in clinical microbiology laboratory.

Objective To evaluate a new system,Vitek 2 Compact,for antimicrobial susceptibility testing(AST)of gram-negative and gram-positive bacteria.Methods Eighty-nine clinical isolates of Peking Union Medical College Hospital,including 48 gram-negative strains and 41 gram-positive strains,and 66 reference strains kept in our laboratory,including 41 gram-negative strains and 25 gram-positive strains, were studied.The antimicrobial susceptibility of these strains were tested by Vitek 2 Compact with AST- GN09(for gram-negative bacteria),AST-P536(for Staphylococci),AST-P534(for Enterococci and S.agalactiae),and AST-P533(for S.pneumoniae)susceptibility cards.The Etest was used as the reference method for comparision.Thirty-two ESBL-producing strains assessed with the confirmatory tests for ESBLs of CLSI(16 strains of them had been confirmed by PCR amplified and sequencing)were detected for ESBLs by Vitek 2 Compact.Results According to the breakpoints of Clinical and Laboratory Standards Institute (CLSI),for the 1 626 microorganism-antibiotic combinations,Vitek 2 Compact gave 90.83% strains with category agreement(CA),4.91% strains with very major errors(VME),2.09% strains with major errors (ME),6.40% minor errors(MIE).The AST for more than 90% of Enterobacteriaceae,nonfermenting bacteria,micrococci and streptococci were completed within 11h,13h,11h and 12h,respectively.The ESBLs tests for thirty-two strains by V-itek 2 Compact are all positive.Conclusions Vitek 2 Compact system can give rapid,reliable and reproducible result with high sensitivity and specificity in assessment of antimicrobial susceptibility testing for clinically relevant gram-negative and gram-positive bacteria,and would become a powerful tool in clinical microbiology laboratory.

OBJECTIVE To investigate the risk factors,clinical characteristics and resistance of Staphylococcus aureus nosocomial infections so as to guide the treatment of S.aureus infection.METHODS To collect clinical materials of S.aureus nosocomial infection and analyze risk factors and clinical characteristics and detect sensitivity of isolated strains to antibacterial agents.RESULTS Severe underlying diseases existed among 73 cases of S.aureus nosocomial infections,82.19 percent of patients had received invasive interventions.Lower respiratory tract was the most common infective site.Seventy-nine strains of S.aureus were isolated,including 66 meticillin-resistant S.aureus(MRSA) and 13 meticillin-sensitive S.aureus(MSSA).S.aureus showed general resistance to many kinds of antibiotic drugs.The resistant rates of MRSA were much higher than those of MSSA(P