The cerebral resuscitation is the most important aim in advanced cardiopulmonary cerebral resuscitation (CPCR). Cerebral function protection after cardiac arrest (CA) is important to improve survival rates including those after the discharge. Therapeutic mild hypothermia maybe the only method that can improve neurological function of patients following resuscitation after CA, which was recommended as one of treatment strategies for unconscious patients after successful resuscitation in 2010 American Heart Association Guidelines for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care. Although there are many cooling methods of inducing hypothermia, each has some advantages or shortcomings. There were many controversies on the choice, which need further research. We make a summary and analysis about the mechanism of therapeutic mild hypothermia, the possible complications at different stages and the clinical application of mild hypothermia, such as the evaluation before therapeutic mild hypothermia and the choice of hypothermia protocol and cooling methods, to provide guidance for clinical mild hypothermia therapy.

Objective Two different transthoracic impedances were made with an adjustable impedance instrument to compare the success rate of defibrillation,heart and skin damage in a porcine model.Methods A total of sixteen pigs were randomly (random number) divided into two groups:low impedance group (about 50 Ω,n =8) and high impedance group (about 100 Ω,n =8).Defibrillation (recommended 150 J) was first attempted at 15 s after induction of ventricular fibrillation (VF).If spontaneous circulation was not recovered,2-minute chest compression and subsequent defibrillation attempts (maximum 200 J) were attempted.Model animal kept stabilization for 30 min after return of spontaneous circulation before induction of the next episode of VF,which was induced five episodes in each pig.Results In the low impedance group,VF was induced 39 times,39 of 43 attempted defibrillations were successful.In the high impedance group,VF was induced 40 times,40 of 70 attempted defibrillations were successful.The current and success rate of the first defibrillation were (34.9 ±3.2) A and 94.9％ respectively in the low impedance group,while those of the high impedance group were (19.1 ±2.1) A and 50％ respectively (both P ＜ 0.05).There were no significant differences in skin damage between two groups,but myocardial injury was lighter in the high impedance group.Conclusions Success rate of the first defibrillation with recommend 150 J obviously decreases with the increase of transthoracic impedance.The main factor of myocardial injury is current instead of the numbers of defibrillation.

Objective To investigate influence of nutritional status on prognosis in patients with systemic inflammatory response syndrome (SIRS). Methods Retrospective analysis for clinical data of 533 patients who hospitalized at the Internal Medicine Department of Beijing Social Welfare Hospital and the Emergency Department of Chaoyang Hospital, Beijing during 2005 to 2010 were performed. All the patients were divided into SIRS (323 cases) and non-SIRS (210 cases) groups based on diagnostic criteria of SIRS and pyemia, and groups of the survival (431 cases) and the dead ( 102 cases) based on their end outcomes.Patients of SIRS were further divided into sub-groups of pyemia (287 cases) and non-pyemia (36 cases)based on their infection status. The Acute Physiology and Chronic Health Evaluation Ⅱ ( APACHE Ⅱ ),serum levels of prealbumin ( PAB), albumin ( ALB), total cholesterol (CHOL) and C-creative protein (CRP) were measured for all the patients on the 1st, 3rd, 7th days after admission, before discharge and prior to death, respectively. Results Scores of APACHE Ⅱ were significantly higher in SIRS and the dead groups than those in non-SIRS and the survival groups (P ＜0. 05 ). Serum level of albumin was significantly lower in SIRS and the dead groups than that in non-SIRS and the survival groups on the 7th day after admission (SIRS vs. non-SIRS: F=9.812, P=0.035; the dead vs. the survival: F =45.285, P=0. 003). Change in serum level of prealbumin was the same as the level of albumin, with significant difference between various groups since the 3rd day after admission ( P ＜ 0. 05 ). Significant time effects could be found in the dead and survival groups (for the dead group: F = 19. 188, P = 0. 000; and for the survival group: F = 47. 250, P ＜ 0. 01 ). Multiple regression analysis showed that serum levels of prealbumin and total cholesterol correlated with scores of APACHE Ⅱ[with a regression formula of scores of APACHE Ⅱ = 52.032-21.407 PAB-8.971 CHOL (R2 =0.801, F=48.016, P =0.023)]. Logistic regression analysis showed that low level of prealbumin and high scores of APACHE Ⅱ both were predictors for survival of SIRS patients, with an overall accuracy of 77. 1 percent, 73.5 percent for survival and 79. 5 percent for death prediction. Conclusions Severe malnutrition can be found in patients with SIRS and serum level of prealbumin can be used to evaluate their nutritional status and severity of the disease. High scores of APACHE Ⅱ combined with low serum level of prealbumin can predict prognosis of the patients.

Objective To reveal the changes of catecholamine and lactate levels in myocardial interstitial fluid during cardiopulmonary resuscitation in order to prove the protective effects of sildenafil pretreatment on post-resuscitation myocardial function in swine model of ventricular fibrillation (VF).Methods Twenty-four swine were randomly (random number) divided into three groups:saline group,sildenafil group and shame operation group.Sildenafil in dose of 0.5 mg/kg dissolved in 40 mL of saline was given to swine once intraperitoneally 40 min prior to VF in sildenafil group.The equivalent volume of saline (0.9％ NaC1) alone was administered instead in saline groups.There was no treatment in shame operation group.After ventricular fibrillation untreated for 8 min,open-chest cardiopulmonary resuscitation was initiated.The hemodynamic variables were recorded at baseline,4 min,1 h and 6 h after restoration of spontaneous circulation (ROSC).The interstitial fluid from the left ventricle wall was collected by using the microdialysis tubes at given intervals,in which the levels of dopamine,norepinephrine,epinephrine,and lactate were measured.The samples for pathological examination were taken at 24 hours after ROSC.Results The levels of catecholamine and lactate in the sildenafil group were lower than those in saline group at all different intervals (P ＜ 0.05 or P ＜ 0.01).The cumulative defibrillation energy was lower in the sildenafil group than that in the saline group (P ＜ 0.05).The hemodynamic changes and myocardial histological damage in sildenafil group were milder than those in saline group (P ＜ 0.05).The pathologic changes of myocardium and mitochondria in saline group were more severe than those in sildenafil group.Conclusions Sildenafil pretreatment prior to VF can effectively reduce endogenous catecholamine secretion and lactate levels in myocardial tissue,protecting the myocardium and improving post-resuscitation myocardial function.

Objective To evaluate the effects of ulinastatin (UTI) on brain protection after cardiopulmonary resuscitation in a porcine model.Methods A total of 20 female swine were induced to make ventricular fibrillation (VF) by programmed stimulation method,and CPR was stared after 8 mins after VF.Swine after ROSC (return of spontaneous circulation) were randomly (random number) divided into two groups,namely UTI group and control group.In UTI group,UTI was administered slowly in a dose of 100 000 U dissolved in 5 ml saline immediately after resuscitation and then given every 3 h until 24 h after CPR (UTI not given at the time of 24 h) ; and 5 ml saline was used instead in control group.Venous blood samples were taken separately before VF,immediate after resuscitation and 3 h,12 h and 24 h after ROSC for detecting levels of TNF-o and IL-1β.Cerebral performance category (CPC) scores were assessed 24 h after ROSC,and subsequently the swine were sacrificed to get brain specimens for histopathological and ultrastructural examination under ordinary light microscope.Results Fifteen of twenty domestic swine were successfully rescued 8 mins after ventricular fibrillation.Swine of UTI group (n =8) and control group (n =7) were all survived over 24 h.Both TNF-α and IL-1β levels were significantly lower in UTI group than those in control group at intervals of 3 h,12 h and 24 h after ROSC (P ＜0.05).Twenty-four hours after ROSC,CPC scores of swine were higher in UTI group than those in control group (P ＜ 0.05).The brain injury 24 h after ROSC was significantly attenuated in UTI group than that in control group.Conclusions UTI can reduce the injury of brain tissue and improve the recovery of cerebral function after CPR.

Objective To observe clinical effects of Baixuan xiatare capsules combined with Baskin and compound Flumetasone on elderly patients with chronic eczema .Methods 160 elderly patients with chronic eczema were randomly divided into observation group and control group ,80 cases in each group , the observation group with XTR combined with Baskin , compound Flumetasone treatment , control group using Baskin combined with compound Flumetasone treatment for 4 weeks,the clinical efficacy was compared between the two groups .Results In the obser-vation group,the effective rate was 94.7%,the effective rate of control group was 82.1%,two groups have statistical significance with the efficiency difference (χ2 =5.862,P<0.05).Conclusion The XTR combined with Baskin and compound Flumetasone have better clinical effects than Baskin combined with compound flumetasone treatment with elderly patients with chronic eczema .

Objective:To understand the status of drinking water-borne endemic fluorosis in Henan Province, so as to provide scientific basis for improving prevention and control strategies.Methods:Ten counties (districts, referred to as counties) were selected from drinking water-borne endemic fluorosis areas of Henan Province in 2018. Three villages in each project county were selected according to the disease status of mild, moderate and severe conditions, and the operation status of water improvement projects, water fluoride content and dental fluorosis among children aged 8 to 12 years in each diseased village were monitored.Results:Totally 30 villages were surveyed, all of which were in the water improvement projects; a total of 25 water improvement projects were monitored, all of them were in normal operation, and the water fluoride exceeding standard rate was 28.00% (7/25), the qualified rate of water fluoride in the water improvement projects was 72.00% (18/25). Among them, 21 villages were in normal operation and the water fluoride in the water improvement projects met national standard. In which the detection rate of dental fluorosis among children aged 8 to 12 years was 36.71% (606/1 651), the index of dental fluorosis was 0.74, and the epidemic intensity was extremely mild. Water fluoride of water improvement projects in 9 villages exceeded the national standard, where the detection rate of dental fluorosis among children aged 8 to 12 years was 43.57% (261/599), the index of dental fluorosis was 0.78, and the epidemic intensity was extremely mild. The detection rate of dental fluorosis among children in the villages where the water fluoride of water improvement projects exceeded the national standard was higher than that in the villages where the water fluoride of water improvement projects met the national standard (χ 2=8.752, P < 0.01). Conclusions:The excessive fluorine content in the water of water improvement projects is still serious, and the epidemic is still severe. It is necessary to strengthen the scientific demonstration of the water improvement project construction and the project acceptance upon completion, so as to prevent unqualified projects from being put into use. We will carry out regular water quality monitoring and promptly rectify projects with water quality exceeding the standards.

Objective To explore the influence of platelet aggregation rate, platelet response index in patients with coronary heart disease by domestic and imported aspirin and clopidogrel and its safety. Methods The date of 100 cases patients with coronary heart disease for angina pectoris from November 2012 to November 2013 were retrospectively analyzed in this study, according to different drug sources, they were divided into import group and domestic group, 50 cases each. Import group was treated with imported aspirin and clopidogrel, the domestic group was treated with domestic aspirin and clopidogrel. MPA, PRI before medication, medication discontinuation after 1, 2 weeks and 6 h, 12 h and 1 d after discontinuation between two groups were compared, treatment of cardiovascular and adverse drug reactions occur within 1 year were observed. Results There was no significant difference between two groups for MPA and PRI before treatment (P>0.05); MPA, PRI after treatment 1 week, 2 weeks in import group were lower than that in domestic group (P<0.05). 6 h after the drug was stopped, MPA had no difference between two groups (t=1.209, P=0.229>0.05), 12 h and 1 d after drug withdrawal, MPA in import group were higher than that in domestic group ( P<0 . 05 ); Discontinuation after 6 h , 12 h , PRI in domestic group were significantly higher than that in import group (P<0.05), after the withdrawal of 1 d, there was no statistical significance (t=1.332, P=0.186>0.05). The incidence of cardiovascular adverse events in import group were lower than that in the domestic group, with statistically significant differences (P<0.05). Team rash, abdominal pain, bruising rates in import group were lower than that in domestic group, the differences were statistically significant (P<0.05). Conclusion Compared with domestic, aspirin combined with clopidogrel plays a positive and effective role in resistting platelet clotting in patients with coronary heart disease for angina pectoris, and platelet function can be quickly restored after the drug is stopped, can significantly reduce the recurrence of myocardial infarction, angina pectoris, heart cerebrovascular accident prevention, reduce mortality.

Objective To evaluate the effect of zinc deficiency factor on cognitive function after isoflurane anesthesia in mice with Alzheimer's disease (AD).Methods One hundred and forty-four APP/ PS1 transgenic mice with AD,weighing 22-28 g,aged 8-10 months,were divided into 6 groups (n=24 each) using a random number table:zinc adequate group (group ZA),zinc adequate plus isoflurane anesthesia group (group ZA+Iso),zinc deficiency group (group ZD),zinc deficiency plus isoflurane anesthesia group (group ZD+Iso),zinc treatment group (group ZT) and zinc treatment plus isoflurane anesthesia group (group ZT+Iso).The mice were fed a diet adequate in zinc and deionized water for 2 months in ZA and ZA+Iso groups.The mice were fed a diet low in zinc (0.01‰ zinc) and deionized water for 1 month in ZD and ZD+Iso groups.The mice were fed a diet adequate in zinc and 0.12‰ ZnSO4 · 7H2O water for 2 months in ZT and ZT+Iso groups.The mice underwent 2 h of anesthesia with 1.4％ isoflurane starting from the end of feeding in ZA+Iso,ZD+Iso and ZT+Iso groups.At 24 h after anesthesia,the mice were sacrificed and hippocampal tissues were obtained for determination of the contents of soluble amyloid beta protein 40 (Aβ40) and Aβ42 and insoluble Aβ40 and Aβ42 (using enzyme-linked immunosorbent assay) and expression of total Aβ,Aβ40,Aβ42,tau pSer396,tau pSer262 and tau pThr231 (by Western blot).Morris water maze test was performed at 24 h after anesthesia.Results There was no significant difference in each parameter between group ZA and group ZA+Iso and between group ZT and group ZT+Iso (P＞0.05).Compared with group ZD or group ZT+Iso,the escape latency was significantly prolonged,the space exploration time was shortened,the expression of hippocampal Aβ42,tau pSer396,tau pSer262 and tau pThr231 was up-regulated,and the contents of soluble and insoluble Aβ42 were increased in group ZD+Iso (P＜0.05 or 0.01).Conclusion Zinc deficiency can aggravate the impairment of cognitive function after isoflurane anesthesia in mice with AD,and the mechanism is related to the promotion of hippocampal Aβ aggregation and tau protein phosphorylation.

OBJECTIVETo distinguish the ginseng and American ginseng pieces accurately and rapidly by electronic nose technology and principal component analysis (PCA) method.

METHODThe optimum conditions of electronic nose for ginseng and American ginseng pieces, such as sample size and volume, headspace volume, incubation time and temperature were determined by the orthogonal test, the data were processed by the normalization method and the preprocessed data were analyzed PCA.

RESULTThe detection methods of ginseng and American ginseng pieces was established by electronic nose, and the odor fingerprint figures of ginseng and American ginseng pieces were obtained, and ginseng and American ginseng pieces were distinguished by PCA recognition pattern.

CONCLUSIONA new accurate and rapid method to distinguish ginseng and American ginseng pieces was established by electronic nose detection.