In order to investigate the effects of cis-UCA on cell -mediated immunity, we established a murine model of DTH response to DNP6OVA which is indicated by the increasing in the ear thickness of the mouse after resensitization, compared with those of the mouse injected with 200 g cis - UCA and trans -UCA intraperitoneally (i. p. ). The average of the increasing in ear thickness of each group was 9. 1 1. 13 10-2 mm (n=8, the number of ears) for the group administrated with cis-UCA; 17. 45 0. 88 10 - 2 mm (n= 8) for the group administrated with trans-UCA ; 16. 43 + 1. 83 10 - 2 mm(n= 7) for control group. It is suggested that there are immunosuppression of DTH response to DNP6OVA in mouse administrated with ets-UCA and no effecs of trans-UCA on this response.

Adolescent ; Adult ; Child ; Child, Preschool ; China ; Female ; Heavy Metal Poisoning ; Humans ; Infant ; Male ; Middle Aged ; Poisoning ; diagnosis ; Prognosis ; Thallium ; poisoning ; Young Adult

Dermatitis, Occupational ; diagnosis ; Diagnostic Errors ; Female ; Humans ; Trichloroethylene ; adverse effects ; Young Adult

Acidosis ; etiology ; Humans ; Kidney Diseases ; etiology ; Toluene ; toxicity

OBJECTIVETo get the message about the developing feature of pneumoconiosis by analyzing the data from 353 cases of pneumoconiosis diagnosed in our hospital recent 6 years.

METHODSTo analyze the onset age, onset service years and incubation period of 353 cases of pneumoconiosis, especially in silicosis, coal worker's pneumoconiosis and potter's pneumoconiosis.

RESULTS353 patients referred to 10 species of pneumoconiosis, the silicosis, coal worker's pneumoconiosis and potter's pneumoconiosis were accounted for 28.90%, 43.34% and 15.01% of total pneumoconiosis respectively. Diagnosed patients who began to exposed to dust during 1950's to 1980's accounted for 84.99% of all the diagnosed patients. The onset age, onset service years and incubation period of silicosis, coal worker's pneumoconiosis and potters pneumoconiosis all showed a shorten trend compared each other every decade, especially after 1980's, but excluded potter's pneumoconiosis because of that the ceramics industry switched to other products in Beijing. There was a positive correlation relationship between average onset age and incubation period in three main species of pneumoconiosis mentioned above, but no significant difference could be seen in average promotion years. Additionally, comparing with other type of work, jade machining workers showed such a characteristic as younger onset and short incubation period.

CONCLUSIONThe development situation of silicosis, coal worker's pneumoconiosis is still no so optimistic, and the strict surveillance and administration especially to the township enterprises with poor production conditions should get further strengthen.

Age of Onset ; Aged ; Female ; Humans ; Male ; Middle Aged ; Pneumoconiosis ; diagnosis ; epidemiology ; Time Factors

Objective To explore the effect of the DNA methyltransferase 5-aza-2'-deoxycytidine (5-aza-CdR)on human esophageal squamous cancer Ecal09 cells.nethods Human esophageal squamous cell cancer(ESCC)Eca109 cells were treated by 5-aza-CdR with 10-7,10-6,1O-5,10-4,0 mol/L. Respectively.Consequently,the growth rate of the cells was detected by MTT assay and morphological structure Was observed.Meanwhile,cell apoptosis and cell cycle were analyzed by flow cytometry method. (FCM).ResulIs The proliferation of Eea109 cells Was inhibited by 5-aza-CdR from 10-7 to 10-4 mol/L Moreover,the inhibition rate showed time-and-concentration-dependent manner(24～96 h,F=160.06,P=0.000,10-7～10-4 mol/L,F:60.95,P:0.000).The maximum rate of inhibitory was reached up to(15.70±0.75)% in the group treated by 10-4 mol/L 5-aza-CdR after 96 hours.An apoptosis peak appeared before diploid peak.The proportion of Go/G1 phase cells Was significantly increased(F=6479.46, P=0.000),especially up to(89.70±0.91)% in the group treated by 10-4 mo/L 5-aza-CdR after 96 h. However,the proportion of S phase cells Was obviously decreased(F=4222.26,P=0.000),especially down to(9.10±0.48)% in the group treated bv 10-4mol/L 5-aza-CdR after 96 h.Conclusions The proliferation of Eca109 cells is inhibited bv 5-aza-CdR in a time-and-concentration-dependent manner.Moreover,the 5-aza-CdR can inhibit cell growth by regulation of DNA cycle and apoptosis.

Aim To confirm the inhibitory effect of chronic intermittent hypobaric hypoxia ( CIHH) on my-ocardial apoptosis induced by metabolism syndrome ( MS) , and to investigate its mechanism. Methods A rat model of MS induced by fructose was used. The blood pressure and the plasma content of glucose, tri-glyceride, cholesterol, and insulin after 12 h fasting were detected. HE stain were used to detect the cardi-ac structure. The TUNEL staining and activity of caspase-3 were used to detect the apoptosis of myocar-dium. The protein expression of Bcl-2 and Bax was detected by Western blot . Results Compared with the control rats, the blood pressure and the plasma content of glucose, triglyceride, cholesterol, and insu-lin were all increased in rats with MS. In rats with MS, the impairment of cardiac structure and the increase of apoptosis were also observed. The protein expression of Bcl-2 was significantly down-regulated, and that of Bax was significantly up-regulated in MS rats. The ratio of Bcl-2/Bax was also significantly decreased. Interest-ingly, CIHH could ameliorate all of the above issues. There was no significant difference between control group and CIHH group. Conclusion CIHH may im-prove the increased apoptosis in rats with MS via inhib-iting the mitochondrial pathway of apoptosis. This stud-y might provide new targets for therapy and the preven-tion of MS patients.

Objective To evaluate the application of cough reflex testing with various concentrations of citric acid for dysphagia post stroke. Methods 20 normal controls (NC), 20 stroke patients with dysphagia (SD) and 20 stroke patients without dysphagia (SND) were tested with cough reflex inhalated 4 kinds of dosage of citric acid: 0.2 mol/L, 0.4 mol/L, 0.6 mol/L and 0.8 mol/L. Results The incidence of pass (coughed twice or more) decreased in the SD compared with those in the NC as inhalated citric acid of 0.2 mol/L and 0.4 mol/L (P< 0.05), and decreased under 0.4 mol/L compared with the SND (P<0.05). There was no significant difference between the SND and the NC (P>0.05). 90% of the NC passed as inhalated citric acid of 0.4 mol/L; however, it was 45% in the SD, and increased when they inhalated more dosage of citric acid (P<0.05). The incidence of pass decreased under 0.2 mol/L citric acid in the SND compared with other concentration (P<0.05). The result of the test was reliable interrater (κ=0.97). The incidence of cough was consistent of 96.8% with the same concentration. No asthma and asphyxia was observed. Conclusion Cough reflex testing with citric acid inhalation can be used to assess the defensive function of airway in lower concentration for dysphagia after stroke.

OBJECTIVETo evaluate the efficacy and safety of wuling Capsule combined with Pinaverium Bromide in treatment of irritable bowel syndrome (IBS).

METHODSSixty-four IBS patients were randomized into two groups, the treatment group and the control group, 32 in each group. Patients in the treatment group took wuling Capsule (0. 33 g/capsule, 3 times per day) and Pinaverium Bromide (50 mg/tablet, one tablet each time, 3 times per day) , while those in the control group only took Pinaverium Bromide (50 mg/tablet, one tablet each time, 3 times per day). The therapeutic course for all was 6 weeks. IBS symptom score questionnaire, IBS-Quality of Life (IBS-QOL) , Self-Rating Depression Scale (SDS) , and Self-Rating Anxiety Scale (SAS) were assessed before and after treatment. Adverse reactions were also observed.

RESULTSThe improvement of abdominal pain, stool frequency, and stool properties, as well as changing rates of integrals were significantly higher in the treatment group than in the control group (P <0. 05). The improvement of dysphoria, body image, concerns for health, and dietary restriction of IBS-QOL, as well as changing rates of integrals were significantly higher in the treatment group than in the control group (P <0. 05). The improvement of SDS and SAS, as well as changing rates of integrals were significantly higher in the treatment group than in the control group (P <0. 05). No severe adverse reaction occurred in either group.

CONCLUSIONCombination therapy of wuling Capsule and Pinaverium Bromide could improve abdominal pain and defecation, attenuate depression and anxiety of IBS patients with higher safety.

Anxiety ; Anxiety Disorders ; Biomedical Research ; Capsules ; Defecation ; Depression ; Depressive Disorder ; Drugs, Chinese Herbal ; therapeutic use ; Humans ; Irritable Bowel Syndrome ; drug therapy ; Morpholines ; therapeutic use ; Quality of Life ; Surveys and Questionnaires

Objective: To explore the association between excite seeking personality and alcohol use, and provide reference basis for intervention measures of drinking behavior. Methods: Totally 5966 college students in 8universities [2180 males, mean age (20 ± 1) ] were selected from Hunan province by using multi-stage stratified cluster random sampling method. We Chat-based anonymous questionnaire survey was conducted by using general questionnaire, excite-seeking personality scales, alcohol questionnaire, and alcohol use disorders identification test. Results: The rate of 12-month alcohol drinking, binge drinking, hazardous and harmful drinking among college students were 47. 5％, 24. 5％, 7. 4％, respectively. High degree of excite seeking personality had more likelihood to having had alcohol drinking, binge drinking, hazardous and harmful drinking (Ps ＜ 0. 01). Excite seeking personality was an independent risk factor of 12-month alcohol drinking, binge drinking, hazardous and harmful drinking. Conclusion: It suggests that excite-seeking personality may be a related factor of alcohol drinking behavior.