Objective:To evaluate the effects of early administration of dexmedetomidine on benzodiazepine ( BZD) requirements of intensive care unit ( ICU) patients with alcohol withdrawal syndrome ( AWS) .Methods:Totally 60 adult patients with severe AWS were chosen and randomly divided into groups A and group B with 30 patients in each .The patients in group A received benzodiazepine simultaneously with early administration of dexmedetomidine , and those in group B received only benzodiazepine .After the first admin-istration of dexmedetomidine , the 24-h cumulative BZD requirement , stay length in ICU and hospital , condition of mechanical ventila-tion and incidence of hypotension and bradycardia were recorded .Results:The 24-h cumulative BZD requirement in group A was obvi-ously lower than that in group B [(8.6 ±1.2) mg vs (25.6 ±4.9) mg, P<0.05].The number of patients with mechanical ventila-tion in the two groups was similar, while the duration of intubation in group A was less than that in group B [(24.9 3.1) h vs (48.8 6.9) h, P<0.05].Additionally, group A had higher incidence of bradycardia when compared with group B (57% vs 13%, P<0.05).Conclusion:As the adjuvant treatment for alcohol withdrawal syndrome , early administration of dexmedetomidine can notably decrease the benzodiazepine requirement of ICU patients .

ObjectiveTo explore the correlation of gastrointestinal symptom of severe cases and abdominal compartment syndrome (ACS),improve monitor technique. MethodsUsing descriptive study to do classified description according to the distribution of 384 severe cases' gastrointestinal symptom and using regressive analysis to analyze the dangerous factors of 46 cases who suffered ACS. Results①The rate of gastrointestinal symptom of 46 cases with ACS:one case with nausea and vomiting occupied 2.2％ ,45 cases with abdominal distension and pain occupied 97.8％ ,45 cases with bowel sound occupied 97.8％,2 cases with diarrhea occupied 4.3％,45 cases with constipation occupied 97.8％. ②Aceording to the single factor logistic regressive analysis shows statistical significant symptoms relating to ACS as follows:abdominal distension and pain,bowel sound decline and constipation,etc. With multi-factors unconditional progressively logistic regressive analysis shows:the first dangerous factor of ACS is abdominal distension and pain(OR=259.106),then is bowel sound decline. CondusionThe correlation exists between the gastrointestinal symptoms and ACS. The clinical nurses should pay attention to the monitor of gastrointestinal function so that the incidence of ACS can be reduced through promoting monitor skills.

Atheroselerosis and thrombangiitis obliterans are the chief factors of chronic lower extremity ischemia. Usually we utilize intervcntional treatment which includs balloon dilatation and stent implantation or surgical revascularization for the patients who have good target vessels, but those methods are not suitable for the patients who have small target vessels. The transplantation of bone marrow stem cells is the new tech-nology for chronic lower extremity isehemia, which utilize the capacity of stem cells that have multiple differ-entiation activity and high self renewal potentiality. It can direetionally differentiated into endothelial cells. It has a good perspective in chronic lower extremity isehemia.

Ischemic disease of lower extremity is a severe disease threatening human health.In the 21st century the stem cells transplantation is one of the most advanced technologies and has applied quickly to clinical therapy.The stem cells possess the potential differentiation capability and can differentiate into all kinds of tissue cells.We transplant stem cells from peripheral blood or bone marrow to isehemie appendicular muscle or obsructed vessal in order to make them differentiate into newborn blood capillary,improve and re-cover blood flow of lower limb and achieve the aim of treating lower limb ischemia.

Objective: To investigate the effect of administrative HDL-C (high density lipoprotein cholesterol) level on adverse cardiovascular events after discharge in elder patients with ST-segment elevation myocardial infarction (STEMI).
Methods: A total of 325 STEMI patients treated in our hospital from 2010-04 to 2012-07 were retrospectively studied. According to administrative HDL-C level, the patients were divided into 2 groups as High HDL-C group, n=139 and Low HDL-C group, n=186. The basic and clinical conditions, in-hospital treatment, death and the medication, adverse cardiovascular events during 6 and 12 months follow-up period were compared between 2 groups.
Results: The patients with in-hospital reperfusion therapy was higher in Low HDL-C group, and Low HDL-C group had the higher ratio of emergent PCI treatment, all P<0.05. During follow-up period, High HDL-C group had less patients with β-receptor blocker treatment, less non- fatal MI, adverse cardiovascular events and re-hospitalization, all P<0.05. Cox regression analysis showed that low HDL-C level (HR=0.558, P=0.024) and diabetes mellitus (HR=1.528, P=0.040) were the risk factors of adverse cardiovascular events, while emergent PCI (HR=0.47, P=0.001) was the protective factor in STEMI patients after discharge.
Conclusion: The lower administrative HDL-C level in elder patients with STEMI had the higher risk of adverse cardiovascular events after discharge.

Aged, 80 and over ; Amyloid beta-Peptides ; metabolism ; Brain ; pathology ; Cerebral Amyloid Angiopathy ; complications ; metabolism ; pathology ; Cerebral Hemorrhage ; etiology ; pathology ; Consciousness Disorders ; etiology ; pathology ; Humans ; Male

Objective:To investigate the influence of combined application of histone deacetylase inhibitor(HDACi)MS-275 and 5-FU on the apoptosis and cycle arrest on human hepatoma cell line HepG2 and unclose the related mechanism.Methods:Divided all the cells into 4 groups:control group,MS-275 group,5-FU group and drug combination group.Flow cytometry(FCM)was used to examine the effects of 5-FU with MS-275 on the apoptosis and cell cycle of HepG2 cells.Bcl-2,Bax,CyclinD1 and P21 protein were determined by Western blot assay.Results:5-FU and MS-275 combination could inhibit HepG2 cell growth through G0-G1 arrest,and induce apoptosis,both time and dose dependently.The combination of two agents increased P21 protein levels and decreased Bcl-2,CyclinD1 protein levels.The levels of Bax protein were not changed.Conclusion:The combination of 5-FU and MS-275 can induce apoptosis and cell cycle arrest,the effect might be associated with down-regulating expression of Cyclin D1 and Bcl-2 protein and upregulating the expression of P21 protein.

In the occupational production and the daily life,the pollutant of pesticides may enter our bodies through the skincontact,the breath and the gastrointestinal absorption and so on. It may cause the reproductive organ and the spermatogenic cell damaged,abnormal endocrine function and the reproduction related genes expressed abnormally,resulting to abnormal spermatogenesis,which leads to oligospermia,asthenospermia,teratospermia and azoospermia. In order to look for a normal pattern and investigate the intrinsic mechanism of the cytotoxicity to the spermatogenic cell correlated with the pesticide pollution,it is necessary to review the relationship between the toxicity of pesticide pollutant and the abnormity of male spermatogenic cell,which will provide some basic information for preventing and controlling the reproductive toxicity of pesticides and ensuring the reproduction healthy of people.

OBJECTIVE:To determine the concentration of pseudoephedrine hydrochloride in human plasma by LC/MS. METHODS:The separation of sample was performed on Zorbax Eclipse XDB C18 with diphenhydramine used as the internal standard.The mobile phase was a mixture of methanol-water(10mmol?L-1 NH4Ac plus 0.1% acetic acid)(55∶45) with a flow rate of 0.2mL?min-1.The column temperature was set at 30℃.The atmospheric pressure chemical ionization-mass spectrometry(APCI-MS) were adopted with pseudoephedrine m/z =166.1 and diphenhydramine m/z =242.3.RESULTS:The linear concentration range for pseudoephedrine was 3.2～408.96ng?mL-1(r=0.999 0) with lowest detection limit at 3.2ng?mL-1.The average recovery was 98.21% with both the intra-day RSD and the inter-day RSD at less than 13%.The stability of pseudoephedrine was stable.CONCLUSION:The method is of high sensibility and accuracy,and it can be used for blood concentration monitoring pharmacokinetic study of pseudoephedrine.

Objective To investigate the role of extracellular signal-regulated kinase1/2 (ERK1/2) in the central amygdala on fentanyl-induced hyperalgesia in rats.Methods Thirty-two male SpragueDawley rats, weighing 60-100 g, were randomly divided into 4 groups (n =8 each) using a random number table: control group (group C), fentanyl-induced hyperalgesia group (group H), U0124 group (group U1) , and U0126 group (group U2).A catheter was implanted in the central amygdale.In group C, normal saline was injected subcutaneously, and 6.5 h later dimethyl sulfoxide (DMSO) was injected via the catheter.In group H, fentanyl was injected subcutaneously to induce hyperalgesia, and 6.5 h later DMSO was injected via the catheter.In group U1, hyperalgesia was induced, and 6.5 h later ERK1 inhibitor U0124 1.5 nmol was injected via the catheter.In group U2, hyperalgesia was induced, and 6.5 h later ERK1/2 inhibitor U0126 1.5 nmol was injected via the catheter.Mechanical paw withdrawal threshold (MWT) and thermal paw withdrawal threshold (TWT) were measured before fentanyl injection, at 6.5 h after injection, and at 30 min after DMSO or U0124/U0126 administration via the catheter (T0-2).After the last measurement of pain threshold, the rats were sacrificed, and the amygdala tissues were sampled for detection of the expression of phosphorylated ERK1/2 (p-ERK1/2) by Western blot in groups C and H.Results Compared with group C, the MWT and TWT were significantly decreased at T1,2in H and U1 groups, and at T1in group U2 (P＜0.05) , the expression of p-ERK2 was up-regulated (P＜0.05) , and no significant change was found in the expression of p-ERK1 in group H (P＞0.05).Compared with group H,the MWT and TWT were significantly increased at T2 in group U2 (P＜0.05) , and no significant change was found in MWT, TWT in group U1 (P＞0.05).Conclusion ERK2 activation in the central amygdala is involved in the development of fentanyl-induced hyperalgesia in rats.