Objective To investigate the feasibility of congenital cytomegalovirus (CMV)infection screening by saliva polymerase chain reaction.Methods From November 1,2010 to February 29,2012,6733 newborns born in Changzhou Maternal and Child Health Care Hospital were enrolled.Saliva samples (0.2 ml) were collected within 3 days after birth,CMV-DNA was detected by real time-polymerase chain reaction and hearing screening was done with EroScan transient-evoked otoacoustic emissions at the same time.The positive rate of congenital CMV infection screening was calculated and clinical manifestations were analyzed.Chi square test was applied to statistical analysis.Results Totally 6733 newborns were screened and 107 of them were found to be positive with CMV DNA,the positive rate was 1.59％ (107/6733),among which 88 were asymptomatic (82.2％) and 19 were symptomatic (17.8 ％).The major clinical manifestations of the neonates with positive CMVDNA were pathological jaundice (13 cases),hepatomegaly (5 cases),granulocytopenia,thrombocytopenic purpura,anemia and small for gestational age (two cases each).Fourteen newborns had only one major clinical manifestation,three newborns had two major clinical manifestations and two newborns had three major clinical manifestations.There was no statistical difference between newborns with positive and negative CMV DNA on hearing screening [hearing loss in one ear:8.4％ (9/107) vs 5.8％ (382/6626); hearing loss in two ears:3.7 ％ (4/107) vs 2.4 ％ (159/6626),x2 =2.776,P=0.241].Conclusion It is feasible to screen congenital CMV infection with saliva sample.

Obiective To study the characteristics and the correlation factors of ADR induced by Ginkgo Leaf Extract and Dipyridamole Injection on the purpose of providing reference for clinical rational administration.Methods All ADR cases that induced by Ginkgo Leaf Extract and Dipyridamole Injection reported between January 2006 and August 2009 were retrieved and statistically analyzed.Results Of all 24 ADR patients induced by Ginkgo Leaf Extract and Dipyridamole Injection,the female patients were more than the male,and the senile patients had highest incidence 41.67%.Most ADR events happened within 30min(70.83%).ADR mainly manifested as adverse reactions of skin and appendants(33.33%),followed by central nervous system adverse reaction.Conclusion Great importance should be attached to ADR induced by Ginkgo Leaf Extract and Dipyridamole Injection.Medication monitoring should be enhanced to avoid occurrence of ADR clinically.

Animals ; CHO Cells ; Cricetulus ; Doxycycline ; pharmacology ; Immunohistochemistry ; Ki-67 Antigen ; genetics ; metabolism ; Plasmids ; Quality Control ; Staining and Labeling ; methods ; Transfection

Objective To investigate the effect of di-(2-ethylhexyl) phthalate (DEHP) on the postnatal lung development in newborn rats.Methods A total of 60 newborn Sprague-Dawley rats (weighing 5.0-8.0 g) in five age groups were studied in the first experiment.The rats were divided based on the different postnatal ages:postnatal day (PND)I,PND4,PND7 and PND14.A total of 45 newborn Sprague-Dawley rats (weighing 5.0-8.0 g) were randomly divided into three groups according to the dosage of DEHP administered in the second experiment.The newborn rats were administered DEHP through intraperitoneal injection at 10 (low-dose subgroup),100 (medium-dose subgroup) or 750 (high-dose subgroup) mg/kg daily from PND1 to PND13.The rats were sacrificed on PND14.Pups were sacrificed with lethal dose injection of pentobarbital sodium.The lung was removed.The right middle lobes were used for analysis.The tissue was processed for histology and lung sections were stained with HE for light microscopic (LM) morphometric measurement.The analysis was performed by means of a digital image analysis system,including pulmonary interstitial area ratio (IAR) and total length density of all segments.One-way ANOVA,LSD and Dunnet T3 methods were used for statistical analysis.Results In the normal controls,IAR decreased significantly by (31.97±5.03) ％,(30.05±3.57)％,(25.33± 1.83)％ and(22.01 ±2.19)％,respectively,from PND1 to PND14 (P＜0.05 or P＜0.01).IAR in medium-and high-dose subgroups increased significantly by (24.11 ±2.78)％ and (26.53± 3.42)％,respectively on PND 14.The total length density of all segments in unit area lung volume increased significantly by 0.047 8±0.003 7,0.050 0±0.002 9,0.071 2±0.003 0 and 0.084 4±0.004 3,respectively from PND1 to PND14 (P＜0.01).In the DEHP treated animals,when compared with the control group,IAR was significantly higher on PND14 (P＜0.05 or P＜0.01),while the total length density of all segments in unit area lung volume was significantly decreased (P＜0.05 or P＜0.01).Length density in medium-and high-dose subgroups were higher than that of low-dose subgroup by 0.082 9±0.001 8,0.077 2±0.002 0 and 0.071 3±0.003 7,respectively on PND14 (P＜0.05 or P＜0.01).Conclusions Medium-and high-dose DEHP affect the postnatal lung development in rats in a dose-dependent mode.

To study the effect and mechanism of Qingdu granules on the tumor growth of 7, 12-dimethyl-benz[ a] an-thracene ( DMBA)-induced breast cancer in Sprague-Dawley rats. Methods: DMBA was used to induce breast cancer in rats. The tumor inhibition of Qingdu granules was observed. Pathological features were observed after hematoxylin-eosin staining, the distribution and content of Ki-67 in tumor were tested by IHC and the content of IL-12, IFN-γ, IL-4 and IL-10 in serum was determined by ELISA. Results:The inhibitory rate of Qingdu granules at low, middle and high dose and saikosaponin a was 30. 93%,43. 84% and 44. 17% and 43. 48%, respectively. The expression of Ki-67 was reduced in Qingdu granules groups and saikosaponin a group, the content of IL-12 and IFN-γ in serum was increased and the level of IL-4 and IL-10 was reduced in the above groups. Conclusion:Qingdu granules can inhibit breast cancer obviously, and the mechanism is probably related to the ability of immune system adjustment, which can enhance the antitumor effect.

Objective To investigate the correlation between matrix metalloproteinase-3 (MMP-3)serum level and polymorphism(5A/6A) and the stability of carotid plaque in Chinese Han population.Methods Two hundred and eighty acute cerebral infarction patients from the department of neurology of Taizhou Hospital were divided into carotid vulnerable plaque group and carotid stable plaque group according to the results of carotid B-mode uhrasonngraphy.Serum MMP-3 level waa measured by means of enzyme-linked immunosorbent assay (ELISA).At the same time, genotype was determined by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) for the common 5A/6A functional promoter polymorphism of the MMP-3 gene.The serum MMP-3 level and genotype frequencies of the MMP-3 gene between the two groups were analyzed.Results The genotype frequencies of the MMP-3 gene 5A/6A polymorphism of the two groups were in Hardy-Weinberg equilibrium The genotype distribution of the MMP-3 promoter 5A/6A polymorphism between the carotid vulnerable plaque group and the carotid stable plaque group was significantly different(χ2 =6.13, P =0.01, OR = 1.90, 95% CI 1.14-3.15).The frequencies of 5A allele were 20.6% and 12.8% in the carotid vulnerable plaque group and the carotid stable plaque group respectively (χ2=6.09, P=0.01, OR =1.76, 95%CI 1.12-2.77).Serum level of MMP-3 in the carotid vulnerable plaque group was higher than that in the carotid stable plaque group (t = 3.39, P =0.00).Conclusion The present findings suggest that serum level of MMP-3 and genetic polymorphism of 5A/6A in MMP-3 promoter are related with carotid vulnerable plaque in Chinese Han population and 5A allele may be a susceptible predictor of carotid vulnerable plaque.

Objective To investigate the association of serum magnesium (Mg) level with all-cause mortality in maintenance hemodialysis patients. Methods A multicenter retrospective cohort study was conducted in seven hemodialysis centers of Guizhou province. The adult outpatients who underwent hemodialysis for more than 3 months were included from June 2015 to June 2016. Demographics, baseline clinical and laboratory test results were collected. All patients were followed up until June 30, 2018. Patients were divided into 4 groups according to their baseline serum Mg levels (interquartile range). Kaplan-Meier method was used to compare the survival rates of the four group. Cox regression model was used to analyze the association of Mg with all-cause mortality. Logistic regression was used to analyze the influencing factors of low Mg level. Results A total of 868 hemodialysis dialysis patients with baseline Mg data were enrolled in this study, with age of (55.47± 16.17) years old, among whom 59.4% were male. There were 11 (1.3%) patients with hypomagnesemia (Mg＜0.7 mmol/L), 432(49.8% ) patients with hypermagnesemia (Mg＞1.05 mmol/L), and 16(1.8% ) patients with Mg＞2.0 mmol/L. Median Mg was 1.05 mmol/L and interquartile range was 0.95-1.24 mmol/L. The comparison between Mg quartile groups showed that the difference in age, hemoglobin, serum albumin, serum calcium, parathyroid hormone (PTH), serum creatinine, uric acid and urea nitrogen was statistically significant (all P＜0.05). After a median follow-up of 24 months, 207 patients died. Kaplan-Meier curves showed higher all-cause mortality in patients with Mg≤0.95 mmol/L (Q1 group) (Log - rank test χ2=15.11, P=0.002). However, after adjusting for age, comorbidities and biochemical indicators(especially albumin), there was no statistically significant difference in the hazard ratio for all-cause death among the four groups. Multiple logistic regression analysis results showed that low serum albumin (OR=0.946, 95%CI 0.913-0.979, P=0.002) and low serum uric acid (OR=0.994, 95% CI 0.992-0.997, P＜0.001) were the risk factors for baseline Mg≤0.95 mmol/L. Conclusions Hypomagnesemia is rare in MHD patients, while hypermagnesemia is more common. Baseline serum Mg≤0.95 mmol/L in MHD patients is correlated with increased risk of all-cause death, but it may be not an independent risk factor. Baseline serum Mg≤0.95 mmol/L that occurred is associated with low levels of albumin and serum uric acid.

Objective: To study the relaxant effect and underlying mechanisms of evodiamine on isolated myometrium of rats. Methods:Prostaglandin F2α( PGF2α) was used to induce isolated myometrium contraction. The relaxant effect of evodiamine and the influence of capsazepine (an antagonist of transient receptor potential cation channel, subfamily V, member 1, TRPV1), U73122 (an antagonist of phospholipase Cβ,PLCβ) and W-7 ( an antagonist of camodulin, CaM) on the relaxant effect of evodiamine on myometri-um were observed respectively by biological function experiments. The median effective concentration ( EC50 ) was analyzed by non-line-ar various slope regressions using Prism-5. 01 software. Results:Evodiamine showed concentration-dependent relaxant effect on PGF2α-induced myometrium contraction with the EC50of 9.56 ×10 -9mol·L-1. Incubation with capsazepine (6.30 ×10 -11 mol·L-1), U73122 (2. 57 × 10 -11 mol·L-1 ) and W-7 (5. 65 × 10 -13 mol·L-1 ) markedly increased the relaxant effect of evodiamine, the EC50 of evodiamine decreased and dose-effect curves left shifted. The order of EC50 was as follows: W-7- evodiamine (8. 88 × 10 -15 mol· L-1) < capsazepine-evodiamine (7.35 ×10 -13 mol·L-1) < U73122-evodiamine (1.95 ×10 -12mol·L-1). Conclusion: Evodia-mine can inhibit myometrium contraction induced by PGF2αobviously, and the mechanisms are probably related to TRPV1, PLCβand CaM.

Objective: To study the relaxant effect and underlying mechanisms of evodiamine on isolated myometrium of rats. Methods:Prostaglandin F2α( PGF2α) was used to induce isolated myometrium contraction. The relaxant effect of evodiamine and the influence of capsazepine (an antagonist of transient receptor potential cation channel, subfamily V, member 1, TRPV1), U73122 (an antagonist of phospholipase Cβ,PLCβ) and W-7 ( an antagonist of camodulin, CaM) on the relaxant effect of evodiamine on myometri-um were observed respectively by biological function experiments. The median effective concentration ( EC50 ) was analyzed by non-line-ar various slope regressions using Prism-5. 01 software. Results:Evodiamine showed concentration-dependent relaxant effect on PGF2α-induced myometrium contraction with the EC50of 9.56 ×10 -9mol·L-1. Incubation with capsazepine (6.30 ×10 -11 mol·L-1), U73122 (2. 57 × 10 -11 mol·L-1 ) and W-7 (5. 65 × 10 -13 mol·L-1 ) markedly increased the relaxant effect of evodiamine, the EC50 of evodiamine decreased and dose-effect curves left shifted. The order of EC50 was as follows: W-7- evodiamine (8. 88 × 10 -15 mol· L-1) < capsazepine-evodiamine (7.35 ×10 -13 mol·L-1) < U73122-evodiamine (1.95 ×10 -12mol·L-1). Conclusion: Evodia-mine can inhibit myometrium contraction induced by PGF2αobviously, and the mechanisms are probably related to TRPV1, PLCβand CaM.

Objective To study the correlation between CD169 expression of monocytes and disease progression in human immunodeficiency virus (HIV )-infected patients .Methods Sixty HIV-infected patients and 30 healthy controls were recruited .According to the CD4 + T lymphocyte counts ,HIV-infected patients were divided into three groups including < 200 cells/μL ,200 — 350 cells/μL and > 350 cells/μL groups . The differences in monocytes counts ,the proportions of CD16 + and CD169 + monocytes were analyzed among the three groups and healthy controls .The correlations between proportion of CD169 + monocytes and CD4 + T lymphocyte counts ,viral load ,and proportion of CD16 + monocytes were analyzed .Results The monocyte counts in CD4 + T lymphocytes < 200 cells/μL group , (200 — 350 ) cells/μL group , >350 cells/μL group and healthy control group were (342 ± 99) ,(396 ± 145) ,(365 ± 80) ,and (404 ± 106)/μL ,respectively ,which were not significantly different (F= 2 .55 , P > 0 .05) .The proportions of CD16 + monocytes in the four groups were (19 .8 ± 8 .8)％ ,(14 .3 ± 2 .8)％ ,(9 .7 ± 2 .0)％ and (4 .0 ± 0 .8)％ ,respectively ,which were significantly different ( F = 30 .90 , P < 0 .05 ) . The proportions of CD169 + monocytes in the four groups were (72 .6 ± 11 .4)％ ,(59 .4 ± 14 .7)％ ,(33 .3 ± 14 .5)％ and (2 .6 ± 0 .8)％ ,respectively ,which were significantly different (F = 152 .40 , P< 0 .05) .The proportion of CD169 + monocytes was negatively correlated with CD4 + T lymphocyte counts (r = 0 .792 , P< 0 .05) , while positively correlated with both viral load (r= 0 .485 ,P< 0 .05) and proportion of CD16 + monocytes (r= 0 .395 , P< 0 .05) .Conclusions The CD169 expressions of monocytes in HIV-infected patients are significantly increased and correlated with both monocyte activation and disease progression .