Objective To analyze the correlation between airborne pollen concentrations and symptoms in patients with pollen allergic rhinitis.Methods Durhum sampler was used to collect the pollen concentration and species from June to September in 2011.The clinical skin prick test (SPT) data were analyzed.The patients with pollen allergic rhinitis were divided into pure pollen allergic rhinitis group (pollen group) and pollen combined perennial allergens allergic rhinitis group (combined group).Symptom scores of patients were assessed,and correlation between pollen concentration and onset of symptoms of patients were analyzed.SPSS 16.0 software was used to analyse the data.Results While the peak of Summer-Autumn pollen concentration appeared from August 20 to September 15,the major pollen included Artemisia L,Chenopodium album and Humulus scandens.The peak of pollen concentration in one day reached 638/1000 mm2.The patients taken SPT from June to September accounted for 51.9％ of the patients in whole year,among which SPT pollen positive patients were 1509,60.7％ of all SPT positive patients.The amount and rate of SPT positive patients showed significant correlation with pollen concentration( r value were 0.90 and 0.99,both P ＜0.05 ).Onset of symptoms in two groups was correlated with pollen concentration in Summer-Autumn.Symptoms of cough in combined group showed more severe compared with patients with pollen group (t =2.36,P ＜ 0.05 ).Conclusions Pollen concentration has a major effect on onset of symptoms of allergic rhinitis.Airborne pollen monitoring has important preventive and therapeutic significance on patients with allergic rhinitis.

AIMTo determine the effect of histamine on ischemia-induced cellular edema and viability reduction in rat hippocampal slices, and the involved subtypes of histamine receptor in this effect.

METHODSIn vitro ischemic injury of hippocampal slices was induced by oxygen-glucose deprivation (OGD). The slice injury was determined by real-timely measuring the changes of light transmittance (LT) for the cellular edema in CA1 region of the hippocampal slice, and by detecting the product of 2, 3, 5-triphenyltetrazolium chloride (TTC), formazan, for the slice viability. The effect of histamine at various concentrations on the slice injury was observed, and the blockage by antagonists of histamine receptors was also investigated.

RESULTSHistamine (0.01-10 micromol x L(-1)) inhibited the peak value of LT during OGD in hippocampal slices and improved the reduced viability after OGD. Diphenhydramine (0.1-10 micromol x L(-1)), an H1 receptor antagonist, did not affect the effect of histamine, while cimetidine (0.1-10 micromol x L(-1)), an H2 receptor antagonist, partly abolished the protective effect of histamine.

CONCLUSIONHistamine protects hippocampal slices against ischemia-induced cellular edema and viability reduction; this effect might be mediated via, at least partly, H2 receptor.

Animals ; Cell Hypoxia ; Cell Survival ; drug effects ; Cimetidine ; pharmacology ; Diphenhydramine ; pharmacology ; Formazans ; metabolism ; Glucose ; deficiency ; Hippocampus ; drug effects ; metabolism ; pathology ; Histamine ; pharmacology ; Histamine H1 Antagonists ; pharmacology ; Histamine H2 Antagonists ; pharmacology ; Male ; Neuroprotective Agents ; pharmacology ; Rats ; Rats, Sprague-Dawley

OBJECTIVETo establish the rat model of acute pulmonary embolism, and study the changes of vascular active substances in pulmonary embolism rats, and investigate the interventive effect of anticoagulant drugs on vascular active substances.

METHODSOne hundred and twenty-eight rats were randomly divided into four groups: control group, model group, low-molecular-weight heparin and warfarin treated group and rivaroxaban-treated group (n = 32 in each group). The method of autologous thrombosis was used to establish the animal model of acute pulmonary embolism. The animals were treated with saline or different anticoagulant drugs. The physiological and biochemical parameters were detected at different time points after embolization. The rats were killed after embolism of 24 h, 3 d, 5 d or 1 week respectively and the pathologic samples of lung tissues were collected to analyze the pulmonary pathological changes in different groups.

RESULTSRats in embolization group after blood clots injection showed shortness of breath, oral cyanosis; quicken heart rates and other symptoms. All embolization groups had pulmonary hypertension, the levels of type B natriuretic peptide (BNP) were increased significantly. The ratio of endothelin-1 (ET-1)/NO and thromboxane (TXB2) and prostacyclin (6-k-PGFla) were abnormal. After treated with effective anticoagulant drugs, the levels of BNP, ET-1, NO, TXB2 and 6-k-PGF1a were tended to the normal levels in the control group. The pulmonary hypertensions were gradually decreased. The efficacy of rivaroxaban on pulmonary embolism was the same as that of the low molecular weight heparin or warfarin.

CONCLUSIONAnticoagulation therapy can effectively improve endothelial function after pulmonary embolism, reduce pulmonary hypertension, and revise the increased BNP levels to normal levels. The efficacy of rivaroxaban is not inferior to that of low molecular weight heparin and warfarin.

Animals ; Anticoagulants ; pharmacology ; Disease Models, Animal ; Endothelin-1 ; metabolism ; Heparin, Low-Molecular-Weight ; pharmacology ; Hypertension, Pulmonary ; drug therapy ; metabolism ; Lung ; pathology ; Morpholines ; pharmacology ; Pulmonary Embolism ; drug therapy ; metabolism ; Rats ; Rivaroxaban ; Thiophenes ; pharmacology ; Warfarin ; pharmacology

OBJECTIVETo establish an assay method for detecting the migration of transferred apoptotic cells into the recipient using flow cytometry.

METHODSSpleen lymphocytes were isolated and labeled with an intracellular amine dye, carboxyfluorescein diacetate succinimidyl ester (CFSE), to allow discrimination. The labeled cells were induced with dexamethasone to undergo apoptosis and transferred into recipient mice via tail venous transfusion. Flow cytometry and histological examination of different tissues were performed at different time points. The stability of CFSE labeling for apoptotic cells was also tested.

RESULTSThe CFSE-labeled apoptotic cells were highly fluorescent with a positive labeling rate of (98.0+/-1.9)%. The stability of CFSE-labeling was testified, and the CFSE-labeled apoptotic cells entering different tissues at different time points were detected by flow cytometry and verified by histological examination.

CONCLUSIONFlow cytometry using CFSE labeling is reliable, sensitive, precise and convenient for apoptotic cell tracing in vivo and in vitro.

Adoptive Transfer ; methods ; Animals ; Apoptosis ; Dexamethasone ; pharmacology ; Female ; Flow Cytometry ; methods ; Fluoresceins ; chemistry ; pharmacokinetics ; Fluorescent Dyes ; chemistry ; pharmacokinetics ; Lymphocytes ; chemistry ; cytology ; drug effects ; Mice ; Mice, Inbred BALB C ; Reproducibility of Results ; Spleen ; cytology ; Succinimides ; chemistry ; pharmacokinetics

Mongolian folk medicine, the important part of Mongolian medicine, is the main means, method and weapon of disease prevention, treatment and health care. Mongolian materia medicas are the important literatures of guiding the healthy development of the modern Mongolian medicine with a long and dazzling history. Since the founding of new China, a new history chapter of Mongolian folk medicine was opened under the attention and support from all levels of party and government. This paper intends to provide comprehensive insight into the rapid development of Mongolian folk medicine. The resources, phytochemistry, quality standard, pharmacology, dosage forms reform and production were reviewed to expound the process that Mongolian folk medicine was developed from traditional practices to scientific development
Medicine, Mongolian Traditional ; standards ; Science

OBJECTIVETo improve computer-assisted imaging analysis for quantitatively measuring brain slice volume of rats and mice in comparison with conventional measuring methods,and to evaluate its usefulness in assessment of focal cerebral ischemia.

METHODSThe accurate volumes of rat and mouse brain slices were measured by weight and special gravity measuring. The areas of brain slices were measured by imaging analysis, then the slice volumes of right and left hemispheres were calculated by multiplying the adjusted thickness of the slices. In addition, the brain slice volumes of right and left hemispheres from focal cerebral ischemic mice were compared to assess ischemic injury using the imaging analysis.

RESULTArea measurement by computer-assisted imaging analysis was linear with different accurate areas (r=1.000). Slice volumes measured by imaging analysis correlated well with the accurate volumes measured by special gravity method, r=0.809 (n=45, P<0.001) in rats, and r=0.844 (n=74, P<0.001) in mice. The brain volumes in ischemic hemispheres were larger than in non-ischemic hemispheres in ischemic mice.

CONCLUSIONComputer-assisted imaging analysis can measure the brain slice volumes accurately and compare right and left hemisphere volumes quantitatively.

Animals ; Brain ; pathology ; Brain Ischemia ; pathology ; Image Processing, Computer-Assisted ; Male ; Mice ; Mice, Inbred ICR ; Rats ; Rats, Sprague-Dawley

Objective To understand the distribution of serum Homocysteine (Hcy)among the middle -aged and the elderly in a refining and chemical company and to provide suggestions for prevention and control of hyperhomocysteinemia (HHcy).Methods A total of 5 113 employees aged over 40 who received annual physical examination in our medical center in 2013 were enrolled in this study.Serum Hcy levels and HHcy positive rate were analyzed by gender and age.The relationship between HHcy and major risk factors of cardiovascular diseases were also analyzed.Results Serum Hcy levels and HHcy positive rate among male were higher than female in each phase of age The difference was statistically significant (P <0.01 ).Within the same gender group,HHcy positive rate increased significantly with age (P <0.01 ).Linear correlation and logistic regression showed that male (OR =3.99,95%CI =3.12 -5.10),age (OR =1.02,95%CI =1.01 -1.02),history of hypertension(OR =2.56,95%CI =2.04 -3.22),systolic pressure(OR =1.01,95%CI =1.01-1.02)and body mass index (OR =1.40,95% CI =1.04 -1.89 )were independent risk factors of HHcy,while creatinine clearance(OR =0.39,95%CI =0.31 -0.49)was protective factor.Conclusion The age,systolic pressure, body mass index and creatinine clearance was related to Hcy levels.

Objective To evaluate the clinical efficacy of aerosolized inhalation of salbutamol suspension in the treatment of children with asthma and the influence of lung function,blood eosinophil (EOS) and immunoglobulin E(IgE).Methods A total of 160 children with asthma were randomly divided into treatment group (n =80 cases) and control group (n =80 cases).The control group was treated with inhaled budesonide 1.0 mg,5 min a time,twice a day,while the children in treatment group were treated combined with salbutamol 5 minutes a time,twice a day on the basis of control group.All patients were treated for 2 weeks.The clinical efficacy in two groups were observed.The changes of blood EOS and IgE at 3 months after treatment were observed.Results The total effective rate in treatment group was 98.68％ (75/76 cases),had significant difference with that in control group,which was 84.13％ (53/63 cases,P ＜ 0.05).And 3 months after treatment,the forced vital capacity (FVC),forced expiratory volume in first second(FEV1),peak expiratory flow (PEF),vital capacity(VC) in treatment group were (79.34 ± 6.52) L,(80.12 ± 3.32) L,(82.08 ±9.62) L· min-1,(83.42 ±4.10) L,had significant difference with those in control group,which were (70.20±3.34)L,(68.25 ±2.90)L,(71.21 ±4.52) L · min-1,(73.17 ±2.34) L (all P＜0.05).The absolute value of EOS and IgE in treatment group were (0.52 ± 0.13) × 109/L,(105.32 ± 62.35) ng · mL-1,had significant difference with those in control group,which were (0.96 ± 0.23) × 109/L,(222.58 ± 84.71) ng · mL-1(all P ＜ 0.05).The control group occurred 1 cases (1.59％) of nausea,while treatment group occurred 2 cases(2.63％) of hoarseness,with no significant difference (P ＞ 0.05).No drug allergy,nosocomial infections,rash and other adverse reactions occurred in two groups.Conclusion The application of glucocorticoid combined with salbutamol inhalation has significant effect on children with asthma,and can significantly reduce the levels of EOS and IgE in blood,and improve lung function.

Objective To evaluate the effect of PTH gene polymorphisms on bone mineral density (BMD) at multiple skeletal sites in normal females.Methods PTH gene phenotype was determined by PCR-RFLP of restriction enzyme Bst BⅠin 596 females aged (46.3?13.7) years (20-80 years),and PCR products with or without enzymolytic site were considered as genotype B or genotype b respectively.BMDs of the anteropesterior spine (AP) and supine lateral spine (Lat) of lumbar vertebrae (L_1-L_4),femoral neck (FN),total hip (T-hip), Ward's triangle (Ward),Trochanter (Troch),forearm [radius+ulna ultradistal (RUUD) and total area of radius + ulna (RUT) ] were measured by DEXA (QDR4500A).Results (1) Hardy-Weinberg equilibrium was evident for PTH polymorphisms.The frequencies of genotype were BB 0.784,Bb 0.208,bb 0.008 and frequencies of alleles B,b were 0.888 and 0.112 respectively in 596 normal females.Frequencies of BB,Bb,bb genotypes were 0.781,0.210,and 0.009 respectively in 347 postmenopausal women and their frequencies of alleles B,b were 0.886,0.114.No significant difference was found between post- and premenopausal women in genotype frequen- cy.(2) Comparing their BMDs of AP,Lat,FN,T-hip,Ward,Troch,RUUD and RUT,there was no significant difference between BB and Bb genotypes of pre- and postmenopansal women groups.(3) Logistic regression analysis failed to show any statistical difference between normal and osteoporosis women with regard to PTH phenotype.Conclusion PTH gene polymorphism has little effect on BMD in normal females.

Objective Explore the application effect of corresponding language function training in sensory aphasia patients' language rehabilitation training. Methods 90 cases patients are randomly divided into experimental group and control group,every group is 45 cases,the two groups of patients are basically the same drug therapy,the control group receives routine care,the experimental group is on the basis of routine care to carry out the corresponding language function training. Results The recovery of language function and cognitive function of the experimental group improved obviously comparing with the control group,comparing between the two(P ＜ 0. 05),the difference is significant. Conclusions The corresponding language function training helps to recover sensory aphasia patients' language function.