Analgesic effect is the most important pharmacologic action of general anesthetics.The receptor mechanisms of analgesia of general anesthetics are complex,which may be related to GABAA receptor,NMDA receptor,glycine receptor,opioid receptor,nnAChRs and so on.In addition,other non-specificity mechanisms may also be involved.In this paper,the receptor mechanisms of analgesia of general anesthetics are reviewed.

Adult ; Back Muscles ; physiopathology ; Fasciitis ; physiopathology ; therapy ; Female ; Humans ; Male ; Moxibustion ; Muscular Diseases ; physiopathology ; therapy

Objective To study the changes of gastrin 17 (G17) and pepsinogen (PG) after gastric bypass surgery in gastric antrum resection, and the influences of different surgical methods on postoperative peptic ulcer. Methods Clinical data of 63 patients with gastric bypass surgery in our hospital from October 2013 to October 2015 were divided into resection of pyloric antrum group (n=33) and preserved pyloric antrum group (n=30). The values of G17, PGⅠ, PGⅡand PGⅠ/PGⅡwere detected by enzyme linked immunosorbent assay at 1 month, 6 months and 12 months after operation. The correlation between the different surgical methods and the incidence of peptic ulcer was analyzed between two groups. Results The G17 levels were significantly decreased in resection of pyloric antrum group 6 and 12 months after operation than those in preserved pyloric antrum group (P<0.05). Compared with preserved pyloric antrum group,PGⅠ and PGⅡ levels was significantly decreased 12 months after operation (P<0.05). There was no significant difference in the ratio PGⅠ/PGⅡat 1 month, 6 months and 12 months after operation between two groups (P>0.05). There was no significant difference in postoperative peptic ulcer between two groups (P>0.05). Conclusion Gastric bypass after resection of the pyloric antrum can reduce the postoperative secretion of G17, PGⅠ and PGⅡ, but which can not reduce the incidence of postoperative anastomotic ulcer.

Objective:To study the anti-inflammatory and analgesic effects of the volatile oil from Piper puberulum ( Benth. ) Max-im. in Guizhou. Methods:Fifty KM mice were randomly divided into five groups (10 ones in each), the model control group (sa-line), low concentration volatile oil group (0. 125 ml/100 ml), medium concentration volatile oil group (0. 25 ml/100ml), high con-centration volatile oil group (0. 5 ml/100 ml) and aspirin group (3 mg·ml-1). Mouse ear swelling induced by xylene and skin capil-lary permeability were used to evaluate anti-inflammatory activity of the volatile oil from Piper puberulum ( Benth. ) Maxim. in Guizhou. Acetic acid-induced abdominal eonstrietion test and hot-plate test were applied to evaluate anti-analgesic activity of the vola-tile oil from Piper puberulum ( Benth. ) Maxim. In Guizhou. Results:Compared with that in the model group, the mouse ear swelling in the medium concentration volatile oil group, high concentration volatile oil group and aspirin group was significantly reduced ( P<0. 05). The skin capillary permeability in the high concentration volatile oil group and aspirin group was significantly reduced (P<0. 05 or P<0. 01). Compared with that in the model group, the writhing times in the medium concentration volatile oil group, high concentration volatile oil group and aspirin group were significantly reduced (P<0. 05 or P<0. 01). The pain threshold in the high concentration volatile oil group was effectively reduced (P<0. 05 or P<0. 01). Conclusion: The volatile oil from Piper puberulum ( Benth. ) Maxim. in Guizhou has promising anti-inflammatory and analgesic activities.

Objective: To explore the clinical characteristics of ST elevation and non-ST elevation acute myocardial infarction (AMI) related with left circumflex artery (LCX) occlusion. Methods: Clinical data of 86 consecutively enrolled patients with LCX occlusion -related AMI undergoing percutaneous coronary intervention (PCI) were retrospectively analyzed. According to manifestations of electrocardiography, the patients were divided into ST elevation myocardial infarction (STEMI) group (n=32) and non STEMI (NSTEMI) group (n=54). Clinical features and prognosis were compared between two groups. Results: Compared with NSTEMI group, there were significant increase in serum level of creatinine [(80±23) μmmol/L vs. (100±30) μmmol/L], in rates of intra-aortic balloon counterpulsation （IABP）support (3.7% vs. 18.8%), usage of invasive respiratory machine (1.9% vs. 15.6%), ischemic mitral reflux (13.0% vs. 40.6%), complete atrioventricular block (0 vs. 9.4%), proportion of left coronary artery dominant type (7.4% vs. 28.1%) and left ventricular end-diastolic diameter [LVEDd,（46±4）mm vs.（48±5）mm?]; And significant decrease in percentage of triple-vessel coronary disease (72.2% vs. 46.9%) in STEMI group, P<0.05 or <0.01. There was no significant difference in mortality rate during admission (3.1% vs. 0, P>0.05) between STEMI group and NSTEMI group. Conclusions: Compared with patients with NSTEMI, patients with STEMI have poorer heart function in patients with left circumflex artery occlusion, which may be related to more left coronary dominance.

Cas9 is a RNA-guided double stranded DNA nuclease that participates in the CRISPR/Cas9 system. Wide-type Cas9 directly silences the expression of target gene by gene splicing. The engineered dCas9 protein with the mutation at D10A and H840A lacks the Cas9' s endonuclease function but keeps its DNA binding activity. dCas9 can activate special genes by fusing with transcription activator. Meanwhile,it can inhibit the gene transcription by directly binding to the target gene and stop gene transcrip?tion. Combination of light sensitive structures and CRISPR can produce light-inducible CRISPR/Cas9 system for control of gene expres?sion. This system is able to activate or inhibit gene expression via the use of controlling blue light(470 nm). In this review,we mainly discuss the development of the light inducible CRISPR/Cas9 system as well as its application in the control of gene expression.

To investigate the differential gene expression profile in two typical traditional Chinese medicine (TCM) syndromes of patients with chronic hepatitis B (CHB), and to find the relationship between TCM syndromes and gene expressions.

Objective To analyze the chemical components of Fructus Aurantii (FA) and Fructus Aurantii Immaturus (FAI).Methods HPLC-ESI-MS with Surveg mass spectrometer was used in the study.Chromatographic column: Symmetry Shield TM RP_ 18 (150 mm?3.9 mm, 5 ?m) (Waters, Milford, MA, USA); mobile phase: (A) water (0.6% HAc, pH=2.5), (B) methanol. Gradient elutions: 20%- 40% B (0-48 min); 40% B (48-54 min); 40%-55% B (54-60 min); 55%-95% B (60-75 min); 95% B (75-85 min); 95%-20% B (85-90 min).Flow rate and wavelength were 0.7 mL/min and 283 nm at room temperature, respectively.Results Four kinds of flavonoids were identified as naringin, neohesperidin, naringenin, and hesperidin, synephrine was also identified in FA and FAI. Furthermore, the contents of them were determined individually.The results showed that the chemical constituents in FA and FAI were the same but the contents were different.Conclusion HPLC-ESI-MS method can be efficiently used to study FA and FAI.

AIM: To confirm the differential expression genes in the rat ischemic brain. METHODS: The middle cerebral artery occlusion ischemic model was set up in rats. Fluorescence differential display reverse transcriptase-polymerase chain reaction (FDD RT-PCR) and reverse Northern blotting were used to fast confirm the differential expression genes. RESULTS: Nine differential expression sequence tags, including 6 known sequences and 3 unknown sequences, were confirmed. Among the known sequences, mus musculus ab1-interactor1,homo sapiens CGI-99 protein, tissue inhibitor of metalloproteinase 3 and homosapiens nuclear receptor co-repressor were up-regulated while homo-sapiens nuclear matrix protein p84 and coatomer protein complex, subunit gamma 2 were down-regulated. CONCLUSIONS: ① Combination of fluorescence differential display reverse transcriptase-polymerase chain reaction (FDD RT-PCR) and reverse Northern blotting is a method to fast-confirm the differential expression genes; ② There are differential expression genes in ischemic brain regions compared to non-ischemic parts. [