Perioperative stroke refers to acute ischemic or hemorrhagic stroke that occurs before operation,during operation and within 30 days after operation.Although the levels of anesthesia and surgical treatment have improved in recent years,there is no significant decrease in the incidence of perioperative stroke.The traditional vascular risk factors,such as advanced age,hypertension,and diabetes,are also the risk factors for stroke onset.In addition,perioperative stroke is closely associated with the operation site,operation mode,anesthesia,and other perioperative events.The treatment and prevention of perioperative stroke is attracting more and more attention,including surgery,anesthesia,neurology and other clinicians.This article reviews the risk assessment,prevention,and treatment of perioperative stroke.

Objective Compare the value of multislice CT perfusion imaging (MSCTPI)?color brain atlas (CBA)?visual evoked potential mapping (VEP-M) in the diagnosis of acute cerebral infarction.Methods After routine CT was performed,the 27 cases of acute cerebral infarction underwent MSCTPI?CBA?and VEP-M respectively.Results The examination of MSCTPI showed that abnormal perfusion changes were in accordance with clinical symptoms;the examination of CBA showed that in 32 scale local high power shadow presented on the power of ??? of lesion;the examination of VEP-M showed the prolongation of latency of P100?degrade of amplitude on the lesion of the chart,the power of the lesion degraded obviously on the map of distribution of power,and distribution asymmetry.Conclusion Combined use of MSCTPI?CBA?VEP-M in the diagnosis of acute cerebral infarction can remedy the defects and improve diagnostic rate of acute cerebral infarction further.

To study the status and patterns of the drug utilization in the diseases of lower respiratory tract, the drug utilization for 290 inpatients with respiratory tract diseases in a Shanghai hospital druing 1993-1997 was analyzed by using Acute Physiology, Age, Chronic Health Evaluation(APACHE) and index of defined daily dose numbers(DDDs). The relativity between APACHE and DDDs was studied. It was found that most common drugs was anti-infection agents and expectorants, accounting for 39.06% and 38.38 %, respectively. The quantitative relationship between drug consumption and disease severity was not observed. It is concluded that the status of the drug utilization can't be demonstrated by analyzing the frequency of drug use by using DDDs.

In order to reveal the treatment mechanism of Chinese medicine with the effect of activating blood and resolving putridity, we selected acetyl-11-keto-beta-boswellic acid (AKBA) and arsenic trioxide (ATO), the main monomeric components of frankincense and arsenolite which are two most commonly used Chinese medicine with effect of activating blood and resolving putridity. We combined AKBA and ATO as a compound, and explored its regulatory role in productions and activities of matrix metalloproteinase (MMP)-1, MMP-2 and MMP-9 in human skin fibroblasts (HSFbs) and human acute monocytic leukemia cell line THP-1 in inflammatory state.

0.05). The time for fever reduced to normal level and for abscesses disappeared in Group A were significantly shorter than those in Group B(all P

To construct an HSV-1 vector vaccine carrying HIV-1 antigens, HIV-1 gp160, gag, protease and the expression elements were chained together, and then inserted into the internal inverted repeat sequence region of HSV-1 by bacterial artificial chromosome technology. Firstly, HIV-1 gp160 (including type B and C), gag and protease genes were cloned into pcDNA3 in series to generate the pcDNA/gBgp and pcDNA/gCgp, then the recombinant plasmids were transfected into 293FT cells, and HIV-1 antigen was detected from transfected cells by Western blotting. Then the expression cassettes from pcDNA/gBgp and pcDNA/gCgp, comprising HIV-1 antigen genes and expression elements, were cloned into pKO5/BN to generate the shuttle plasmids pKO5/BN/gBgp and pKO5/BN/gCgp. The shuttle plasmids were electroporated into E. coli cells that harbor an HSV-BAC, the recombinant bacteria were screened, and the recombinant DNA was extracted and transfected into Vero cells. The recombinant virus was purified through picking plaques, the virus' DNAs were identified by Southern blotting; HIV-1 antigen was detected from the recombinant HSV-1 infected cells by Western blotting, and the virus' replication competent was analyzed. As the results, gp160 and gag proteins were detected from 293FT cells transfected with pcDNA/gBgp and pcDNA/gCgp by Western blotting. The recombinant bacteria were generated from the E. coli electroporated with pKO5/BN/gBgp or pKO5/BN/gCgp. The recombinant HSV was purified from the Vero cells transfected with the recombinant DNA, the unique DNA fragment was detected from the genome of recombination HSV by Southern blotting; gp120 and gp41 were detected from the infected cells by Western blotting, and the recombinant HSV retained replication competent in mammalian cells. The results indicate that the recombinant HSV carrying HIV-1 gp160, gag and protease genes was generated, the virus retains replication competent in mammalian cells, and could be used as a replicated viral vector vaccine.
Animals ; Cercopithecus aethiops ; Chromosomes, Artificial, Bacterial ; DNA, Recombinant ; genetics ; DNA, Viral ; genetics ; Escherichia coli ; HIV Antigens ; genetics ; immunology ; HIV Envelope Protein gp160 ; genetics ; immunology ; HIV Protease ; genetics ; immunology ; Herpes Simplex Virus Vaccines ; immunology ; Herpesvirus 1, Human ; physiology ; Plasmids ; Transfection ; Vero Cells ; Virus Replication ; gag Gene Products, Human Immunodeficiency Virus ; genetics ; immunology

AIM:To observe the effects of Liangxue-Jiedu (LXJD) prescription, a Chinese medicine, on the expression of CC chemokine ligand 20 ( CCL20 ) and CC chemokine receptor 6 ( CCR6 ) in imiquimod-induced psoriasis-like skin lesions in a mouse model .METHODS: Male BALB/c mice were randomly divided into control group , model group, LXJD treatment group and chemokine CCL 20 monoclonal antibody treatment group .The mouse model of psoriasis was induced by imiquimod .The severity of psoriasis was assessed by the dermatologists using psoriasis area and severity in -dex (PASI).The morphological changes of the skin tissues were observed under light microscope .The thickness of epider-mis was measured .Real-time PCR was used to detect the expression of CCL 20 and CCR6 in the skin tissue samples .RE-SULTS:The skin in model group showed a large number of scales , erythema and skin thickening .Compared with model group, the skin lesion in LXJD treatment group was attenuated .The erythema and scales were alleviated , the PASI score was reduced , and the expression of CCL 20 and CCR6 was significantly lower than that in model group .CONCLUSION:LXJD prescription down-regulates the expression of CCL 20/CCR6, thus attenuating the psoriasis skin lesions in mice .

Objective To investigate the change of Th22 cells in the peripheral blood of the patients with primary biliary cirrhosis (PBC) and evaluate its clinical significance. Methods The proportion of Th22 cells in the peripheral blood of PBC patients and healthy controls were evaluated by flow cytometry. The cytokine IL-22 of each group was measured by ELISA and ALT, AST, GGT, TBIL and CRP were measured by Automatic biochemical analyzer. The proportion of Th22 cells correlation with IL-22 , ALT, AST, GGT, TBIL and CRP were analyzed. Results The proportion of Th22 cells was higher in PBC patients than healthy controls (P < 0.05), Moreover the frequency of Th22 was increased in PBC patients with liver cirrhosis than in PBC patients with liver non-cirrhosis (P < 0.05). The level of IL-22, ALT, AST, GGT, TBIL and CRP were increased in PBC patients (P < 0.05). Moreover Th22 frequency of peripheral blood was positively associated with IL-22, ALT, AST, GGT and CRP (P < 0.05). Conclusion Th22 may be involved in the pathogenesis of and it is a potential therapy target for PBC.

Objective To explore the characteristics and influencing factors of cognitive dysfunction in patients with essential tremor (ET).Methods We recruited ET patients diagnosed by the Department of Neurology of the First Affiliated Hospital of Xi`an Jiaotong University and healthy volunteers who matched the ET patients in age, gender and education level for the study.We recorded all the patients` demographic information, tremor degree, and family history based on the family tree.All the participants were tested by MMSE, MoCA, ADL, HAMD and HAMA.Results There were 88 ET patients and 63 normal subjects included in the study.According to MMSE, 31.82％ of the patients had cognitive dysfunctions, with orientation, short-term memory, calculation ability, language skills, retelling, reading comprehension, three-level command and drawing being significantly lower than those of the healthy volunteers (P<0.01);orientation was the most serious damage in cognitive function domain (K=0.624, S=0.726);three-level command was the least serious damage (K=0.274, S=0.319).According to MoCA, 86.36％ of the ET patients had cognitive dysfunction higher than normal people (P<0.05);visual space and execution, clock drawing task, naming, attention, 100-7, language skills, abstract thinking and orientation were significantly lower than normal people (P<0.01);the most serious damage in cognitive function domain was visual space and execution (K=0.651, S=0.786); the least serious damage cognitive function domain was “100-7” (K=0.406, S=0.484). Education level and age affected cognitive dysfunction (P<0.05). ADL scores showed negative correlation with cognitive function (correlation =－0.375 and －0.383, respectively; P<0.001). After the effects of anxiety and depression were excluded, onset age and tremor grading were correlated with cognitive dysfunction (P<0.05). When the above factors were put into binary Logistic regression model, education level was found to be contributed to the model (P<0.05).Conclusion Patients with ET widely suffer from cognitive impairment. Age, education level, daily life disability, age of onset, and tremor degree classification can affect cognitive dysfunction.

AIM: To evaluate the effects of acetyl-11-keto-beta-boswellic acid (AKBA, a main active component from frankincense, one of the traditional Chinese herb for healing wounds) on the activities of matrix metalloproteinase(MMP)-1, MMP-2 and MMP-9.METHODS: Pure human interstitial collagenase (MMP-1) or gelatinase A (MMP-2) was activated by p-aminophenylmercuric acetate (APMA), and was incubated with AKBA for 1 h. The activities of the enzymes were observed by quenched fluorescent substrate. The lysates of rat polymorphonuclear neutrophils [PMNs, rich in gelatinase B (MMP-9)] was incubated with AKBA for 1 h, and activity of MMP-9 was tested by gelatin zymography. Three cell models: activated human dermal fibroblasts by TNF-α, activated THP-1 cells by PMA and fibroblasts-THP-1 co-culture system were established. AKBA was cultured with these cell models for 24 h. The levels of MMP-1, MMP-2 and MMP-9 in the cell culture supernatants were tested by ELISA and activities of MMP-2 and MMP-9 were tested by gelatin zymography assays.RESULTS: AKBA dose-dependently inhibited the activities of human MMP-1 and MMP-2 at the range of 0.1-0.8 mmol/L, with 50% inhibitory concentration (IC50) of 0.18 mmol /L and 0.27 mmol/L, respectively. In the range of 0.05-0.85 mmol/L, AKBA inhibited the MMP-9 activity (P<0.01). Although AKBA promoted fibroblasts to secrete MMP-2, the production of MMP-9 by THP-1 was inhibited. In the cell co-culture system, the inhibitory effects on MMP-1, MMP-2 and MMP-9 productions were also observed.CONCLUSION: AKBA, as a bioactive component of frankincense, has an inhibitory effect on MMPs production and activities, indicating the possible mechanism for healing chronic wounds by frankincense.