Vitamin A deficiency is a risk factor for asthma.Vitamin A plays important roles in maintaining airway epithelium phenotype,suppressing airway hyperresponsiveness,inducing immune tolerance and regulating airway inflammation,etc.The value of Vitamin A in asthma prevention and treatment has received wild attention but is still controverial.Vitamin A receptors are wildly expressed and the mechanisms are complex,more studies are needed to further clarify the relationship between Vitamin A and asthma.Besides,asthma is a polygenetic disease caused by environmental and genetic factors,and the current clinical studies of Vitamin A for prevention and treatment of asthma are not consistent.New epidemiologic studies about Vitamin A and asthma should take environmental and genetic factors into consideration.This article gives an overview about the research progress of the relationship between Vitamin A and asthma.

Objective To analyze half amount triptorelin in patients with endometriosis after application . Methods According to digifal table ,86 patients with endometriosis were randomly divided into the two groups:the observation group(43 cases)and the control group(43 cases).All patients were treated with laparoscopy .The patients in the observation group were treated through half amount triptorelin ,while the control group was treated through whole amount triptorelin .They were treated for six months .Serum carbohydrate antigen 125 ( CA125 ) and tumor necrosis factor-α( TNF-α) were measured before and after treatment .Results The groups of patients were successfully operated.The total effective rates in the control group were 97.7%in the control group and 95.3%in the observation group,there was no significant difference (χ2 =1.46,P>0.05).1-year follow-up after surgery,the control group had 5 cases of recurrence ,the recurrence rate was 11.6%,the observation group had 4 cases of recurrence ,the recurrence rate was 9.3%,there was no significant difference (χ2 =0.92,P>0.05).After treatment,serum CA125 and TNF-αwere significantly lowered,but levels of serum CA125 and TNF-αafter treatment had no significant difference (t=0.773,0.131,P>0.05).During treatment,the control group had 15 cases of adverse reactions ,the rate was 34.9%and the observation group had 5 cases of adverse reactions,the rate was 11.6%.The observation group should be significantly less than the control group (χ2 =6.78,P<0.05).Conclusion Half amount triptorelin had the quite effect with whole amout and fewer adverse reactions .

Procalcitonin (PCT)is a biomarker of early bacterial infection,and it can reflect severity of infection,and regarded as a prognostic factor.Community acquired pneumonia(CAP) is the main mortality and morbidity cause of children under 5 years old.The diagnosis of CAP mainly depends on clinical symptoms and chest radioactivity and regular blood test,and absent of specific indications,and mainly depends on clinicians experiences.The diagnosis and prognosis values in children CAP have been proved by many clinical trials.This paper reviews the clinical value of PCT on children CAP.

Objective To study the correlation between economic status and quality of life among patients with chronic ob -structive pulmonary diseases ( COPD) in Xinzhou region of Shanxi province .Methods One hundred forty -eight COPD patients in rural and urban area were randomly selected for the survey , and they filled out a questionnaire and we also accessed to medical records . The survey contains included economic burden on patients , medical expenses and mortality et al .Further to analyze the correlation be-tween economic status and quality of life in patients with COPD .Results For patients with COPD , economic burden in rural area was severe than those in urban area in economically backward areas in Xinzhou region ( P <0.05 ) , the investment on treatment in rural area was lower than in urban area ( P <0.05 ) , the quality of life in rural area was poorer than in urban area ( P <0.05 ) .Conclu-sions Backward economic situation severely restricts the treatment and quality of life in patients with COPD , and it increases the fi-nancial burden on the patient's family.It is necessary to increase the government investment , strengthen social management , and to carry out the supporting work for the patients with COPD in economically backward areas .

0.05). In comparison with the control group,the levels of FPG and GSP were significantly higher (P

A follow-up study of the dynamic changes with multiple parameters of blood coagulation and plasma limulus assay was carried out in 20 patients with decompen-sated hepatic cirrhosis.It was found that the levels of endotoxin in peripheral blood and factor VIII-related antigen increased significantly, prothrombin time and kaolin partial thromboplastin time prolonged, whereas fibrinogen, factor II, hepaplastin test, antithrombin-III and fibronectin decreased.Our data suggested that( 1 )both the coagulation abnormalities and endotoxemia were coexisted and correlated progressively with the disease process. ( 2 )the incidence and severity of endotoxemia were closely correlated with the degree and severity of hepatic decompensation; ( 3 )dynamic charges of endotoxemia and coagulation abnormalities were of some prognostic significance in decompensated hepatic cirrhosis

Objective To evaluate the clinical value of bone imaging in diagnosing bone metastasis from lung cancer. Methods A total of 201 patients with diagnosed lung cancer were examined by ~(99)Tc~(m)-MDP bone imaging,and the bone metastatic sites,quantity and pathological types of those with skeletal metastases were reviewed and analyzed.Results Among these 201 patients,134 cases were found with skeletal metastases,commonly in the thoracic bone,the sinal and pelvic bone.Lung cancer was identified easier to have the skeletal metastases of adenocarcinoma than other types of cancers.The positive rate of bone metastasis diagnosed by radionuclide bone imaging was rather higher than that of X-ray and CT.Conclusion Radionuclide bone imaging should be routinely performed in patients with lung cancer.

Objective:To investigate the pharmacokinetics of probucol(PB)self-microemulsifying drug delivery system(PB-SMEDDS) in rats.Methods:Rats were used as the models.With PB suspension as control,double cycle crossover with single oral dose was performed to investigate the pharmacokinetics of PB-SMEDDS.The HPLC method was established to detect drug concentration in the rat plasma,and the obtained data were processed with 3P97 software.Results:The plasma concentration-time profiles of PB-SMEDDS conformed to a two-compartment model(the coefficient weight is 1/C2).Cmax,tmax and AUC0～96h were 6.72?g/ml,8.58 h and 253.98(?g.h)/ml,respectively.The AUC0～96h of PB-SMEDDS was 19.08 times of PB suspension.Conclusion:PB-SMEDDS could improve the oral bioavailability of PB significantly.

Objective:To investigate in vitro metabolism method and HPLC method for the dextromethorphan.Methods:Total protein of normal liver specimens metabolismed dextromethorphan in vitro.An HPLC method with fluorescence was developed to study the contents of dextromethorphan and metabolites by joining an internal standard(Adriamycin).Methanol-10mmol/l,sodium dihydrogen phosphate solution(50:50,contain 0.01% sodium heptanesulfonate,5% triethylamine,pH 3.5)was used to the mobile phase.Results:Total protein of normal liver specimens metabolismed dextromethorphan in vitro efficiently with coenzyme,Mg~(2+), suitable temperature and pH value.Dextromethorphan and metabolites were analyed by HPLC method with fluorescence.The metabolic rate of dextromethorphan was 16.09%.Conclusion:It is suggested that the metabolism method of dextromethorphan in vitro is simple,convenient and accurate.It can be used for the determination of metabolism dextromethorphan in vitro.

Objective To investigate the activity of partial plasma coagulation factor activity and its clinical significance in occurrence of acute coronary syndrome(ACS). Methods The activities of co-agulation factors(FⅤ.C, FⅦ :C, FⅧ :C, FⅩ:C and FⅪ :C) were measured in 100 patients with acute myocardial infarction(AMI group) and 69 patients with unstable angina pectoris in acute stage(UAP group), the results were compared with those of 120 cases of stable angina pectoris(SAP group) and 80 healthy controls(heahhy control group). The relationship was analyzed between activities of coagu-lation factors and A MI as well as acute stage UAP. Results The patients with acute myocardial infarc-tion and unstable angina pectoris in acute phase had significantly higher plasma FⅤ.C, FⅦ :C, FⅧ :C, FⅩ:C and FⅪ :C compared with those of healthy and SAP subjects(P<0.05) ; there were no sig-nificant differences of the above activities between SAP group and healthy control group(P>0.05).Conclusion Significantly higher activation of FⅤ.C, FⅦ :C, FⅧ :C, FⅩ:C and FⅪ :C and a hyper-coagulabale state exist in acute coronary syndrome(ACS) patients in acute stage.