Adolescent ; Adult ; Aged ; Aged, 80 and over ; Case-Control Studies ; Child ; Female ; Humans ; Lymphocyte Count ; Male ; Middle Aged ; Myelodysplastic Syndromes ; blood ; T-Lymphocytes, Helper-Inducer ; Young Adult

Animals ; Cell Culture Techniques ; Cells, Cultured ; Male ; Neural Stem Cells ; cytology ; Neurons ; cytology ; Olfactory Mucosa ; cytology ; Rats ; Rats, Sprague-Dawley

Objective To investigate the distribution of hepatitis B virus (HBV) genotypes in Qingdao,and the relationship of HBV genotypes with the serum HBV-DNA levels and HBV YMDD spontaneous mutation of patients,then to discuss the clinical significance.Methods Hepatitis B virus genotypes and YMDD spontaneous mutation of 144 patients were detected by real time PCR (Taqman probe),then the results were analyzed by statistical method.Results Of the 144 patients,130 (90.3％ )were genotype C,12 (8.3％) were genotype B,and 2 (1.4％) were neither genotype B nor genotype C;33 (22.9％) were detected to have YMDD mutation,and 25 (75.5％) were YVDD positive,3 (9.1％ )were YIDD positive,5 ( 15.2％ ) were YVDD and YIDD positive.There were no significant differences between clinical diagnosis,serum HBV-DNA levels,YMDD spontaneous mutation and HBV genotypes (P ＞0.05 ).Conclusion Genotype C is the dominant position for HBV genotype in Qingdao.Untreated patients with chronic hepatitis B have YMDD spontaneous mutation.HBV genotypes have no association with YMDD spontaneous mutation and the development of diseases.

Objective To explore the role of apoptosis of neutrophils and vascular endothelial cells and changes of relative cytokines and thrombotic factors in the pathogenesis of traumatic sepsis at the advanced stage.Methods The venous blood was collected from the patients with traumatic sepsis at advanced stage and traumatic patients without sepsis and healthy subjects.The peripheral hlood mononu- clear cells(PBMC)and neutrophils were isolated and cultured.The apoptosis of neutrophils and vascular endothelial cells was assayed,and the level of IL-4,IL-10 in PBMC culture supernatants were deter- mined,and the tissue factor(TF)and vW factor(vWF)of peripheral plasma were measured.Results The percentages of apoptosis of neutrophils and numbers of apoptotic circulating vascular endothelial cells were higher than that of traumatic patients without sepsis and healthy controls significantly.And the levels of anti-inflammatory cytokines IL-4,IL-10 and thrombotic factors TF,vWF in traumatic sepsis were elevated than that of traumatic patients without sepsis and controls too.Conclusion Immune suppres- sion and abnormal thrombotic state may be one characteristic of traumatic sepsis at advanced stage,which perhaps involveds in the pathogenesis of traumatic sepsis at the advanced stage and multiple organ dys- function syndrome.

One of the mechanisms of endometriosis-dysmenorrhea is closely related to the changes of pelvic anatomy and hemodynamics. TCM holds that cold-coagulation and blood-stasis that alternate and resist the cell palace is one of the main pathogenesis of dysmenorrheas.Dunhuang Liao Fengxu Shouruo Formula(P.3930),a precise and appropriate formulating prescription, plays an important role in activating blood, dispelling cold, tonifying qi and nourishing blood, which can warm the maridians and disperse cold, nourish blood and dissolve stasis and it achieves significant results. And in this prescription, the method of decocting herbs in mutton soup embodies the local characteristic of foodtherapy combined with medication of ancient Dunhuang medical prescriptions.

Objective To investigate the protective mechanism of protein kinase C(PKC)and calcium sensing receptor(CaR)in ischemia preconditioned rat hearts.Methods Using cell culture method,in vitro cultured inhibitor(IPC+CaRI).Apoptosis was detected using TUNEL and Hoechst33342 cell viability was detected by MTT,the protein expression of easpase-12,calpain and CaR in endochylema were detected using Wedtetm blot.ResultsIn I/R group nucleus was shrank,big blue,chromatin concentrated,apoptotle body appeared.Other groups haddifferent fluorescence intensity varying degree,IPC+PKCI+CaRS group had more big blue nucleus.Myocardialcell viability and apoptotic rate,I/R group[(62.99±0.65)%,(19.13±0.87)%],IPC group[(78.67±0.37)%,(14.21±0.74)%],IPC+PKCI group[(71.09±0.52)%,(20.46±0.81)%],IPC+PKCI+CaRS group(66.10±0.75)%,(24.89±1.43)%],IPC+CaRS group[(69.56±0.44)%,(21.64±0.77)%],IPC+CaRI group(85.81±0.60)%,(13.12±0.69)%],all had a difference(P＜0.05 or＜0.01)compared with C group[(100.00)%,(6.02±0. 31)%].Western blot identified that CaR expression in IPC+PKCI and IPC+CaRS,IPC+PKCI+CaRS groupswas more than that in IPC and IPC+CaRI groups;easpase-12 had more active fragment(60×103)in I/R,IPC+CaRS,IPC+PKCI+CaRS groups;ealpain expressions in I/R,IPC,IPC+PKCI,IPC+PKCI+CaRS,IPC+CaRSgroups were higher than those in C and IPC+CaRI,I/R group was the highest one,C group the second,IPC+CaRI the third.Conclusion The interaction of PKC and CaR can reduce the intracellular Ca2+ from sarcoplasmicreticulum thus provide a protection.

Objective To examine the gene expression profile of laryngeal squamous cell carcinoma (LSCC) by combination of laser capture micmdissection (LCM) and microarray and to identify genetic changes in disease pathogenesis.Methods The study analysed 8 matched pairs of specimens of glottic carcinoma of larynx and histologically normal epithelium tissues adjacent to the carcinoma preserved in the RNAlater reagent.A genome-wide transcriptome analysis was performed by probing 16 cDNA microarrays with fluorescent-labeled amplified RNA derived from higer capture microdissected cells.Real-time quantitative (RT-PCR) of tissue mieroarmy was used to validate the reliability of cDNA miemarrays.Results Significant analysis of microarray(SAM) floftware and hierarchical cluster analysis of the expressed genes showed that 2351 genes was signiilcantly expressed respectively according to different analysis method (false discover rate=0.63%).A selected set of MMP12,KRT16,RARB,PRB1 genes was identified to be consistent with array data by RT-PCR. Condusiom The analysis of gene ontology and pathway distributions futher highlighted genes that may be critically important to laryngeal carcinogenesis.The results strongly suggest that this new approach may facilitate the identification of clinical molecular markers of disease and novel potential therapeutic targets for LSCC.

OBJECTIVETo explore the morphometric abnormalities of brain gray matter (GM) in patients with chronic low back pain (CLBP).

METHODSThirty patients with CLBP and 30 healthy individuals were enrolled and examined with a 3.0 T magnetic resonance (MR) scanner. High-resolution T1 structural MR data were acquired and data analysis was performed using voxel-based morphometry (VBM) in FMRIB Software Library. The morphological differences were compared between the two groups.

RESULTSs Compared with the healthy control subjects, patients with CLBP showed decreased GM volumes in several brain cortical areas including the bilateral superior frontal gyrus, right frontal pole, left insular cortex, left middle and left inferior temporal gyrus (P<0.05, after TFCE correction). Increased GM volumes were found in the patients in the subcortical structures including the left thalamus, bilateral putamen, bilateral nucleus accumben and right caudate nucleus (P<0.05, after TFCE correction).

CONCLUSIONPatients with CLBP have different patterns of GM abnormalities in different brain regions, characterized by reduced GM volume in cerebral cortical regions and increased GM volume in the subcortical nuclei. Such changes might be associated with the maladaptation of the brain in chronic pain state.

Cerebral Cortex ; Frontal Lobe ; Gray Matter ; diagnostic imaging ; pathology ; Humans ; Low Back Pain ; physiopathology ; Magnetic Resonance Imaging ; Temporal Lobe ; Thalamus

OBJECTIVETo explore the causes of nonspecific chronic cough in children and relationship between transient receptor potential vanilloid 1 (TRPV1) gene polymorphisms and nonspecific chronic cough.

METHODSA total of 195 children with chronic cough were followed up half a month, one month and three months after their first visit to hospital. Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) was used to examine polymorphisms of the TRPV1 gene in the children. A total of 205 healthy or surgical children without chronic cough served as the control group.

RESULTSThe etiologic distribution of the 195 children with chronic cough was as follows: 96 (49.2%) cases of cough variant asthma (CVA), 48 (24.6%) cases of CVA complicated by upper airway cough syndrome (UACS), 34 (17.4%) cases of post-infectious cough, and 17 (8.7%) cases of UACS. Three genotypes were identified in both groups at positions rs222747 (CC, GC and GG), rs222748 (CC, TC and TT) and rs8065080 (CC, TC and TT). The frequencies of genotype and allele at position rs222747 did not accord with the law of Hardy-Weinberg. There was no significant difference in frequencies of genotype and allele at positions rs222748 and rs8065080 between the two groups.

CONCLUSIONSCVA, UACS and post-infectious cough are common causes of nonspecific chronic cough in children. TRPV1 gene polymorphisms at positions rs222748 and rs8065080 may be unrelated to nonspecific chronic cough in children.

Adolescent ; Alleles ; Child ; Child, Preschool ; Chronic Disease ; Cough ; etiology ; genetics ; Female ; Genotype ; Humans ; Infant ; Male ; Polymorphism, Genetic ; TRPV Cation Channels ; genetics

OBJECTIVETo investigate the proportion of incidence of children with non-specific chronic cough in Chongqing and analyze the characteristics of etiology during the follow-up.

METHODDiagnostic criteria were defined for children with non-specific chronic cough according to the Guidelines of diagnosis and therapy for children with chronic cough that were formulated by the Subspecialty Group, Society of Pediatrics, Chinese Medical Association and Chinese Journal of Pediatrics in 2008. Totally 266 patients in whom cough was the main or the only symptom,lasting > 4 weeks, presenting to Asthma Center of Children's Hospital, Chongqing Medical University between June 2008 and April 2009 were recruited into this study. Based on the Guidelines, diagnosis was made after taking history, physical examination and assistant examination. After etiological treatment, the patients were followed up during the second week, the fourth week and the twelfth week. Etiological diagnosis was confirmed if cough was resolved after specific therapy. If cough was not resolved,the diagnosis was rechecked and a new therapy was applied.

RESULTTotally 125 (47.0%) patients received final diagnoses of cough variant asthma (CVA), 58 (21.8%) was CVA and upper airway cough syndrome (UACS), 44 (16.5%) was diagnosed postinfection cough, 35 (13.2%) of UACS. In different age groups, the proportion of incidence of etiological agents is statistically distinct. In the ≤ 3 years old group, 35 patients (70.0%) were diagnosed CVA, 10 (20.0%) was postinfection cough; in 3 - 6 years group, 71 patients (50.7%) had CVA; the incidence of UACS was significantly higher in ≥ 6 years group.

CONCLUSIONIt is concluded that CVA, CVA and UACS, post infection cough, and simple UACS were identified as the three top reasons for children with chronic cough in Chongqing. Children with chronic cough of different age groups had different etiology of cough. The characteristic of each etiology need further study.

Adolescent ; Asthma ; epidemiology ; Child ; Child, Preschool ; China ; epidemiology ; Chronic Disease ; Cough ; epidemiology ; etiology ; microbiology ; Follow-Up Studies ; Humans ; Incidence ; Infant ; Infection ; epidemiology