Animals ; Cardiovascular System ; metabolism ; GTPase-Activating Proteins ; metabolism ; Humans ; Nerve Tissue Proteins ; metabolism ; Signal Transduction

Objective To investigate the effect ofYindanxinnaotong (YDXNT) capsule on learning and memory abilities, super oxide dismutase (SOD) activity and malondialdehyde (MDA) content in the hippocampus of rat models of vascular dementia (VD). Methods Animals were randomly divided into sham-operated group,VD vehicle group (Group VD) and YDXNT treatment group (Group VD+YDXNT); the 4-vessel occlusion was employed to establish the VD rat models in the Group VD and Group VD+YDXNT,while rats in the sham-operated group were not performed occlusion of the bilateral common carotid artery.Rats of the Group VD+YDXNT were given 1 mL liquid (9 granules of YDXNT into 360 mL normal saline) through intragastric administration 3 times daily for a consecutive 4 weeks; and rats of the other 2 groups were given the same volume of saline.The changes of learning and memory abilities were observed by Morris water maze test; the activity of SOD and the content of MDA in the hippocampus were measured. Results As compared with those in rats of the Group VD, the learning and memory abilities in rats of the Group VD+YDXNT were significantly improved (P＜0.05):time in finding the platform was obviously decreased and swimming distance in finding the platform was obviously shortened in rats of Group VD+YDXNT.As compared with those in rats of the Group VD,the activity of SOD in the hippocampus was significantly increased and the content of MDA was obviously decreased in rats of the Group VD+YDXNT (P＜0.05). Conclusion YDXNT could increase oxygen radical metabolism to improve the learning and memory abilities of rats with VD.

OBJECTIVETo observe the clinical efficacy of Qi-supplementing and blood-activating (QSBA) in treating diabetic peripheral nephropathy (DPN).

METHODSSixty-eight type 2 diabetes mellitus patients with Qi deficiency-blood stasis Syndrome were randomly divided into two groups, the neurotrophic agents were used in both groups, while QSBA herbs were used in the treated group additionally. The treatment course was 2 months. Blood glucose (BG), triglyceride (TG), total cholesterol (TC) and nerve conduction velocity (NCV) were detected before and after treatment.

RESULTSAfter treatment, the BG, blood lipid, NCV were improved significantly (P < 0.05) in both groups, but the improvement was more significant in the QSBA treated group than in the control group (P < 0.05).

CONCLUSIONQSBA, in treating DPN, can not only improve its symptoms, but also ameliorate the NCV.

Adult ; Aged ; Diabetic Neuropathies ; drug therapy ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Humans ; Male ; Medicine, Chinese Traditional ; Middle Aged ; Neural Conduction ; drug effects ; Phytotherapy ; Qi

BACKGROUND: This study was undertaken to determine the prevalence of organ failure and its risk factors in patients with severe acute pancreatitis (SAP) . METHODS: A retrospective analysis was made of 186 patients with SAP who were had been hospitalized in the intensive care unit of Jinzhong First People's Hospital between March 2000 and October 2009. The patients met the diagnostic criteria of SAP set by the Surgical Society of the Chinese Medical Association in 2006. The variables collected included age, gender, etiology of SAP, the number of comorbidit, APACHEII score, contrast-enhanced CT (CECT) pancreatic necrosis, CT severity index (CTSI) , abdominal compartment syndrome (ACS) , the number of organ failure, and the number of death. The prevalence and mortality of organ failure were calculated. The variables were analyzed by unconditional multivariate logistic regression to determine the independent risk factors for organ failure in SAP. RESULTS: Of 186 patients, 96 had organ failure. In the 96 patients, 47 died. There was a significant association among the prevalence of organ failure and age, the number of comorbidity, APACHEII score, CECT pancreatic necrosis, CTSI, and ACS. An increase in age, the number of comorbidity, APACHEII score, CECT pancreatic necrosis were correlated with increased number of organ failure. Age, the number of comorbidity, APACHEII score, CECT pancreatic necrosis, CTSI and ACS were assessed by unconditional multivariate logistic regression. CONCLUSIONS: Organ failure occurred in 51.6％ of the 186 patients with SAP. The mortality of SAP with organ failure was 49.0％. Age, the number of comorbidity, APACHEII score, CECT pancreatic necrosis, CTSI and ACS are independent risk factors of organ failure.

Combining the structural features of picotamide and linotroban, a series of N,N'-bis-(halogenophenyl)-4-methoxybenzene-1, 3-disulfonamides were designed and synthesized on the basic principles of drug design. The structures of target compounds were confirmed by IR, 1H NMR and HR-MS, and the in vitro antiplatelet aggregation activity was evaluated by Born turbidimetric method with adenosine diphosphate (ADP) as the platelet aggregation inducers. The assay results showed that twelve compounds (4b, 4f, 4l, 5b, 5d-5g, 5j, 5k, 5m and 5n) were found to have superior anti-platelet aggregation activities than the positive drug picotamide. The preliminary structure-activity relationship (SAR) has been explored.
Adenosine Diphosphate ; Drug Design ; Phthalic Acids ; Platelet Aggregation ; Platelet Aggregation Inhibitors ; chemical synthesis ; chemistry ; Structure-Activity Relationship ; Sulfonamides ; chemical synthesis ; chemistry

Objective To study the expression of p53,p16,PCNA protein in esophageal carcinoma and its relationship to sexual distinction,the location of disease,the biological level,the depth of invasion and lymph node metastasis.Methods 118 patients with esophageal carcinoma were included in the study,all of them were treated for the first time.p53,p16 and PCNA protein in the 118 cases of esophageal carcinoma were detected by immunohistochemical assay(SP technique). Results The positive expression of p53, p16, PCNA protein in 118 patients was 80 %(92/118),42%(50/118)and 97%(115/118),respectively.The positive expression of p53,PCNA protein were irrelated to the sexual distinction,the location of disease,the biological level,the depth of invasion and the lymph node metastasis.The loss of p16 was significantly related to the depth of invasion and the lymph node metastasis(P

Objective To explore the relationship between job stressors and mental health of pre-hospital first aid nurses. Methods Job stressors, mental health and their relationship were investigated among the pre-hospital first aid nurses in Beijing Emergency Medical Center using a questionnaire method. Results The pre-hospital first aid nurses had high job stress. There was a significantly positive correlation between some factors of job stressors and mental health of pre-hospital nurses (r=0.40, P＜0.01). The difference had a significantly statistical meaning. Conclusions Stressors are the important factors that influencing the mental health level of pre-hospital first aid nurses. Effective management strategies should be implemented to reduce the job stress of pre-hospital nurses and protect their mental health.

OBJECTIVETo explore the values of tissue factor (TF) and vascular endothelial growth factor (VEGF) expressions on peripheral CD14+ monocytes in disease assessment, prognosis, and short-term efficacy evaluation of non-Hodgkin lymphoma (NHL) patients.

METHODSTF and VEGF expressions on CD14+monocytes in 47 NHL patients (disease group) before chemotherapy and after 4 chemotherapy cycles and in 30 healthy subjects (control group) were detected by flow cytometry, and the potential relationship among TF, VEGF, International Prognostic Index (IPI), and short-term efficacy were analyzed.

RESULTSTF and VEGF expressions on CD14 + monocytes in disease group were significantly higher than those in control group ( all P <0. 01) and positive correlation was showed between them (r = 0. 708, P = 0.00). TF and VEGF expressions in Ann Arbor stage III and IV (n = 22 and 19) , symptomatic (n = 22) , lactate dehydrogenase (LDH) increased (n = 21) , Eastern Cooperative Oncology Group (ECOG) score 2-4 (n = 12) and extranodal lesions >1 (n = 16) groups were significantly higher than those in Ann Arbor stage II (an = 6) , asymptomatic (an =25) , LDH normal (n = 26) , ECOG score 0-1 ( n = 35) and extranodal lesions ~1 ( na = 31) groups, respectively (all P <0.05). The expressions of TF and VEGF on CD14 + monocytes in high-risk (n = 7) or high-middle-risk (n = 11) groups were significantly increased compared with low-risk (n = 15) or low-middle-risk(n = 14) groups, respectively (all P <0. 01). TF and VEGF expressions in non-remission group before chemotherapy (n = 11) were both obviously higher than those in remission group (an = 36, all P <0. 01) , and after chemotherapy their expressions in remission group were significantly lower than those before chemotherapy (all P <0. 01) , while such significant changes were not observed in the non-remission group ( all P > 0. 05).

CONCLUSIONThe high expressions of TF and VEGF on peripheral CD14 + monocytes can be useful markers in dis-ease assessment, prognosis evaluation and short-term efficacy observation of NHL patients.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Case-Control Studies ; Child ; Female ; Humans ; Lipopolysaccharide Receptors ; Lymphoma, Non-Hodgkin ; blood ; Male ; Middle Aged ; Monocytes ; metabolism ; Prognosis ; Thromboplastin ; metabolism ; Vascular Endothelial Growth Factor A ; blood ; Young Adult

OBJECTIVETo study the pollution status of Legionella species in hot spring vacation center and the related factors.

METHODSField surveys were performed in four big hot spring vacation centers of Changping district. Uniform questionnaires was used and colony count was made together with the isolation of Legionella species from hot spring water based on mip gene typing.

RESULTS47 isolates of Legionella pneumophila (Lp) from 87 samples showed 4 serotypes as Lp1, Lp6, Lp12, Lp5 with percent of 57.45%, 21.28%, 14.89%, 6.38% respectively. The hot spring centers controlled the temperature of recycled water between 34-47 degrees C by hot water heating and filtrating system. All the isolates were cultured from the hot water with temperature between 34-44 degrees C: 56.75% (21/37) in high temperature (40-47 degrees C) and 61.90% (26/42) in low temperature (34-39.9 degrees C). There were no statistically significant difference between the high and the low temperature samples (P > 0.05). In the four hot spring vacation centers, the pH value was under control at 6.4-7.3 and the ambient temperature was under control between 26-28 degrees C. The humidity was controlled between 56% -69% relative humidity, which were the best growing conditions for the Legionella species. Disinfectors as chlorine deviratives was used in the four hot spring vacation centers. Though the concentration of chlorine in the water was 0.3-0.5 mg/L, 14.29%-48.00% of the samples were still positive of having Legionella species.

CONCLUSIONThe pollution of Legionella species was considered to be quite serious in the four hot spring vacation centers and the predominant serotype was Lp1. The pH and temperature of the hot spring water, ambient temperature and humidity and the way of heating up the water were the best conditions for the growth of Legionella species in these centers. Because of the high temperature of the hot spring water, chlorine of the disinfector volatilized quickly, affecting the effect of disinfection. The result revealed that water temperature achieving 44 degrees C could have had the effect of prevention.

China ; Disinfection ; Environmental Monitoring ; Hot Springs ; microbiology ; Legionella ; growth & development ; isolation & purification ; Temperature ; Travel ; Water Microbiology

Objective Color doppler ultrasonography of chronic Keshan disease (CKD) was evaluated to provide evidences for clinic diagnosis of the disease. Methods From September to Novermber 2009, according to "Diagnostic criteria of Keshan disease" (GB 17021-1997), 64 cases of CKD were randomly sampled from five Keshan diseased districts in Shandong province, Zoucheng, Sishui, Yishui, Wulian, Jvxian, and Pingyi as patient group. Thirty four healthy volunteers being checked up by Shandong Institute for Endemic Diseases Control and Research were put in control group. All the subjects were examined with Color doppler ultrasonography. The indexes of cardiac structure, left ventricular (LV) systolic function and LV diastolic function were measured.Results Left atrial internal diameter, LV end-diastolic internal diameter, LV end-systolic internal diameter, right ventricular diameter, aorta diameter, right atrial transverse diameter, right atrial long diameter and left ventricle mass of the patient group[(35.38 ± 6.89), (61.57 ± 8.61), (45.39 ± 10.29), (17.22 ± 3.79), (28.69 ± 2.81),(38.00 ± 6.05), (42.68 ± 8.65)mm, (283.22 ± 103.12)g] were higher than that of control group[(26.70 ± 3.27),(45.41 ± 4.93), (26.91 ± 4.35), (13.76 ± 2.27), (24.09 ± 2.89), (31.50 ± 3.32), (35.82 ± 3.14) mm, (156.03 ±39.86)g, t = 6.93, 10.09, 9.98, 4.87, 7.64, 5.81, 4.46, 6.90, all P＜ 0.05]. The LV ejection fraction and fractional shortening of the left ventricular of the patient group[(49.25 ± 14.33)%, (26.11 ± 9.17)%] were lower than that of control group[(73.88 ± 4.04)%, (42.88 ± 3.62)%, t = - 9.79, - 10.22, all P＜ 0.05]. Diffuse hypokinetic motion of the left ventricle reduced in 95% (61/64) of CKD patients, and 5% (3/64) of CKD patients had segmental LV dyskinesia. Seventy five per sent(48/64) of the patients accompanied with mitral regurgitation, and 39% (26/64) of these cases accompanied with tricuspid regurgitation. Meaningful Mitral or tricuspid regurgitation was not found out in control group. Conclusions The CKD patients' bore of atrio-ventricular cavity and LV mass are enlarged, and their motion of ventricle is reduced or partly reduced. They have poor heart function. Mitral regurgitation are more than tricuspid regurgitation. Color doppler Ultrasonography is important in diagnosis of chronic Keshan discase.