Objective To observe histologic changes of human cytomegalovirus(hCMV)-infected explants of first trimester human placenta and expression of hCMV gene in the hCMV-infected explants, and investigate the mechanism of intrauterine transmission of hCMV from mother to fetus.Methods The first trimester placenta explants cultures were carried out, and they were infected with hCMV for 10 days. The expression of hCMV immediate early protein(IEP) 72-IEP86 were determined using indirect-immuno fluorescent assay, and in situ hybridization method was used to examine the hCMV late gene (LG)mRNA. For histologic evaluation of morphological changes in villi, transmission electron microscope was used.Results (1) Typical hCMV-induced lesions bearing hCMV IEP72-IEP86 were consistently localized in the trophoblast of covering placenta villi, interstitial cell and vascular endothelia cell 12 hours after infection, and were predominant in cytotrophoblast. (2) Replication of hCMV in placenta explants culture occurred from 12 hours to 24 hours and disappeared since 48 hours after infection with different concentrations of hCMV when examined by in situ hybridization. (3) Tissue integrity and viability of first trimester placenta explants were obtained in culture for 10 days and then explants were infected with different concentrations of hCMV 100 tissue culture infectious doses(TCID_ 50 ),200 TCID_ 50 and 300 TCID_ 50 , the progression of the infection was observed in the tissue that maintained its normal cellular organization under light microscope. But typical inflammation of cellular organization was observed under transmission electron microscope. Conclusions (1) A flash replication of hCMV in placental explants culture occurs; IEP72-IEP86 may be in intrauterine infection of hCMV for a long time. (2) There are pathological ultrastructure changes in hCMV-infected explants.

Objective To explore the trend of mortality and years of life lost due to Esophageal Cancer in residents in Tieling,so as to provide the basis data on preventing Esophageal cancer in Tieling.Methods The data of residents in Tieling dying of Esophageal cancer from 2007 to 2015 was collected and cleared up to calculate the evaluation indexes including the mortality rate,the average percentage change of mortality rate.GM(1,1) model was used to predict the future mortality.Results From 2007 to 2015,the Average Esophageal cancer Mortality Rate of in residents in Tieling was 5.26 per 100000 persons,and especially 1.95％ raised a year.The Mortality Rate would increase from 2016 to 2019.Conclusion Tieling Esophageal Cancer mortality rate is on the rise,especially for elder men more than 60.So that the proper prevention measures should be car ried and strengthened.

Objective To evaluate the efficacy and safety of total glucosides of paeony combined with ebastine for the treatment of chronic idiopathic urticaria.Methods A randomized,open-labeled,positive drugcontrolled,parallel-group study was carried out.Sixty patients with chronic idiopathic urticaria were randomly divided into two groups using a random digit table:combined group treated with total glucosides of paeony 600 mg thrice daily combined with ebastine 10 mg per day,control group treated with ebastine 10 mg per day only.The treatment lasted 12 weeks followed by a four-week follow-up.Adverse reactions were recorded and treatment efficacy was evaluated by using urticaria activity score over seven days (UAS7).Results The UAS7 was 9.28 ±4.59,5.83 ± 4.44 and 7.52 ± 5.57 in the combined group on week 8,12 after the initiation of treatment and week 4 after the withdrawal of treatment,respectively,significantly lower than that in the control group at the three time points (13.29 ± 4.72,P ＜ 0.05; 9.86 ± 5.46,P ＜ 0.01; 16.21 ± 5.34,P ＜ 0.01).Significant differences were observed in the response rate between the combined group and control group at the end of the 12-week treatment (75.9％ vs.42.9％,x2 =4.56,P ＜ 0.05).There was a decreased recurrence rate in the combined group combined with the control group at the end of the follow-up (13.6％ vs.50.0％,x2 =3.90,P ＜0.05).No obvious adverse reactions were noted in either of the two groups.Conclusion Total glucosides of paeony could markedly enhance the efficacy of ebastine for the treatment of chronic idiopathic urticaria with a reduction in recurrence rate.

Purpose To Prepare anti- HIV-1 gp120 monoclonal antibodies and to identify the specificity of antibodies in order to provide technique for preparing HIV remedial antibodies. Methods The gene fragment of HIV-1 gp120 was connected to PEGX-4T-2 prokaryotic expressing vector. The vector was cut by enzyme. GST-HIV protein was expressed by E. coli XL1-blue. The BALB/c mice were immunized with purified GST-HIV antigen, and then the fusion of mice spleen cell and myeloma cell SP2/0 was executed as the routine cell-fusion technique. Positive cells were screened by Indirect ELISA. Immuno-blotting assay and Western blot identified the specificity of antibodies. Results External gene section from the recombinant plasmid by sequencing showed the same size of HIV-1 gp120 gene sequences. An external expressed protein band of 32 KD was obtained after purified protein SDS-PAGE electrophoresis. It indicated that six strains of hybridoma cells secreting special monoclone antibodies had been obtained. ELISA results showed that six strains monoclonal antibodies only reacted to HIV-1 gp120 antigen. Western blot results showed that a band with molecular weight 32 kDa was obtained, which could interact with HIV-1 gp120 monoclonal antibody. Conclusion Six strains of hybridoma cells secreting special monoclone antibodies had been obtained. The prepared monoclonal antibodies have established a basis for HIV remedial antibody.

Adult ; Female ; Humans ; Laryngeal Neoplasms ; Neurilemmoma

OBJECTIVETo investigate the correlation between the pathogeneses of diarrhea-pre- dominant irritable bowel syndrome (D-IBS) complicated functional dyspepsia (FD) patients of Gan-stagnation Pi-deficiency Syndrome (GSPDS) and symptoms, psychological states, and gastrointestinal hormones.

METHODSA total of 111 patients with confirmed D-IBS complicated FD of GSPDS were recruited as the treated group by using Rome III standard and Chinese medical syndrome standard. And 30 healthy volunteers were recruited as the control group. The general condition, scoring for digestive symptoms, and the distribution of GSPDS subtype of all subjects were recorded by a questionnaire, and assessed by Symptom Checklist (SCL-90; a software for psychological test developed by Beijing Huicheng Adult Cor- poration). Meanwhile, plasma levels of 5-hydroxytryptamine (5-HT), somatostatin (SS), vasoactive intestinal peptide (VIP), endothelin (ET), interleukin 10 (IL-10), and interleukin 12 (IL-12) were measured in all subjects.

RESULTS(1) The subtype of D-IBS complicated FD of GSPDS was dominant in Pi-qi deficiency type (51/111,45.9%),Pi yang deficiency type (34/111,30.6%), and GSPDS. There was no statistical difference in the scoring of digestive symptoms among the 3 subtypes (P >0.05). (2) Compared with the control group, the anxiety factor score and the total score significantly increased in all three subtypes of D-IBS complicated FD of GSPDS, and the depression score of Pi yang deficiency type and Gan-depression type also significantly increased (P <0.05, P <0.01); the depression score of Gan-depression type was significantly higher than that of the Pi-qi deficiency type (P <0.01). Plasma 5-HT levels were obviously lower in D-IBS complicated FD patients of GSPDS accompanied with anxiety or depression than in those with no obvious psychological abnormalities, and VIP and IL-10 levels were significantly lower than those in the control group (P <0.05). Plasma VIP levels were also obviously lower in D-IBS complicated FD patients of GSPDS accompanied with anxiety or depression than in those with no obvious psychological abnormalities (P <0.01), and SS levels were significantly lower than those in the control group (P <0.05). There was no statistical difference in plasma ET or IL-12 levels in each patient group, when compared with the control group (P >0.05). (3) Compared with the.control group, plasma 5-HT levels significantly increased, plasma VIP and IL-10 levels significantly decreased in ach subtype of D-IBS complicated FD patients of GSPDS (P <0.05, P <0.01), and no significant change of SS, ET, or IL-12 occurred (P >0.05). Besides, plasma 5-HT levels were significantly higher in Gan-depression type than in Pi yang deficiency type, VIP levels were lower in Gan-depression type than in Pi-qi deficiency type (all P <0.05).

CONCLUSIONSGan stagnation and Pi deficiency were dominant in D-IBS complicated FD patients of GSPDS. Psychological abnormalities, increased plasma 5-HT levels, and decreased plasma VIP levels were closely correlated with Gan stagnation subtype, which provided some reference for looking for objective indicators of Chinese medical syndromes in treating D-IBS complicated FD patients of GSPDS.

Adult ; Case-Control Studies ; Diarrhea ; etiology ; Dyspepsia ; blood ; complications ; psychology ; Gastrointestinal Hormones ; blood ; Humans ; Irritable Bowel Syndrome ; blood ; complications ; psychology ; Psychological Tests ; Qi ; Serotonin ; Surveys and Questionnaires ; Yang Deficiency

Adult ; Biomarkers ; blood ; urine ; Female ; Humans ; Male ; Manganese ; blood ; urine ; Middle Aged ; Occupational Exposure ; adverse effects ; Young Adult

Phosphodiesterase-4 ( PDE4 ) has been one of the most popular drug targets during recent years due to its critical role in the control of intracellular cyclic adenosine monophos-phate ( cAMP ) concentration and downstream signal transduc-tion. PDE4 is widely distributed in the central nervous system ( CNS) with different expression levels of its four subtypes. Re-cent data indicate that altered PDE4 expression and/or activity is relevant to multiple CNS disorders, such as depression, memory deficiency, drug dependence, and neural lesion. Selective PDE4 inhibitors exhibit therapeutic effects on these disorders and might be a promising pharmacotherapy. The paper highlights recent re-search progress in the roles of PDE4 in CNS function, and dis-cusses the prospects of PDE4 as a novel therapeutic target for CNS disorders.

Biomedical Research ; China ; Preventive Medicine ; Research Support as Topic

Biomedical Research ; China ; Preventive Medicine ; Research Support as Topic