ATP-sensitive potassium channels (KATP channels) play important roles in various tissues under physiological and pathophysiological conditions by coupling cell metabolic status to electrical activity. The KATP channe l is a tetrameric complex of inwardly rectified potassium (Kir) and ATP binding protein (ABP). The Kir subunits form the channel pore, whereas ABP is required for activation and regulation. Both Kir and ABP are divided into different subu nits and the various Kir and ABP subunits “mix and match” to form KATP c hannels with different pharmacological and nucleotide sensitivities. This revie w focuses on the molecular structure, physiological roles, pathophysiological an d pharmacological properties of KATP channels in different tissues.

DNA, Viral ; genetics ; Hep G2 Cells ; Hepatitis B virus ; drug effects ; Humans ; Oligonucleotides, Antisense ; pharmacology

Drug Resistance, Microbial ; Immunity ; Infection

Objective To evaluate the risk factors for early rebleeding (ERB) after elective endoscopic variceal ligation (EVL) in cirrhotic patients and the influence of ERB on the long-term survival.Methods A total of 198 cirrhotic patients who received elective EVL were retrospectively evaluated.Twenty-six patients rebleeded within 6 weeks after initial EVL and were assigned to the ERB group.One hundred and seventy-two other cirrhotic patients were assigned to the control group.Multivariate analysis was used to define the high risk factors of ERB.A Kaplan-Meier analysis was performed to evaluate the cumulative survival rates between two groups.Results The Child-Pugh classification (P =0.016),Child-Pugh scores (P=0.012),and the total bilirubin (P =0.001) were significantly different between ERB and control group.Multivariate analysis showed total bilirubin was the only independent risk factor of ERB (OR =2.02,95％CI:1.04-4.04,P =0.008).The proportional mortality indicator of bleeding-related deaths was 66.7％ (10/15) in ERB group and 13.6％ (6/44) in control group (P ＜0.01).The five-year curmulative survival rate of the control-group was significantly higher than that of the rebleeding group (67.8％ vs.25.3％,P ＜ 0.01).Conclusion Cirrhotic patients with ERB after elective EVL have a poor prognosis.High level of total bilirubin may predict ERB.

OBJECTIVE To study the amounts of pulpal lipopolysaccharide (LPS) in acute and chronic pulpitis and to analyze the relation between the amounts of LPS in pulpitis and the clinical symptoms. METHODS The Limulus test was used to analyze the amounts of LPS in the root canal of pulpitis, under the condition of acute and chronic pulpitis. RESULTS The amounts of LPS in 23 cases of acute pulpitis were found significantly higher than that in 22 cases of chronic pulpitis, P

ATP-sensitive potassium channels (KATP channels) play important roles in various tissues tinder physiological and pathophysiological condi- conditions by coupling cell metabolic status to electrical activity. The KATP channel is a tetrameric complex of inwardly rectified potassium (Kir) and ATP binding protein (ABP). The Kir subunits form the channel pore, whereas ABP is required for activation and regulation. Both Kir and ABP are divided into different subunits and the various Kir and ABP subunits "mix and match" to form KATP channels with different pharmacological and nucleotide sensitivities. This review focuses on the molecular structure, physiological roles, pathophysiological and pharmacological proper ties of KATP channels in different tissues.

The localization of some enzyme in adult worms of Clonorchis sinensis was studied by histochemical method in this paper. Acid phosphatase was detectcd mainly in digestive duct, subtegument and tne walls of testis, uterus and ovary; acetylcholinestcrase was found in oral sucker, ventral sucker, pharynx; and ATPase was found to exist in oral sucker, ventral sucker, pharynx and musclxe layer in the subtegument. The eggs of C. sinensis possessed the above three enzymes (Figs.l-5).

Objective To assess the efficacy and safety of multimodal analgesia with different doses of nalbuphine combined with flurbiprofen on patients who received intravenous patient -controlled analgesia(PCIA) after thoracotomy.Methods Sixty patients underwent thoracotomy,ASA Ⅰ -Ⅱ,18 -65 years old,who underwent postoperative PCIA,were randomly divideded into three groups according to the digital table,nalbuphine 60 mg group (N60 group),nalbuphine 80 mg group(N80 group)and nalbuphine 100 mg group (N100 group),20 cases in each group.All patients were given 150mg flurbiprofen,a total of 100mL.PCIA solution:the background dose was 2mL/h, PCIA dose of 0.5mL,locking time of 15min.10min before surgery,each patient was intravenously given flurbiprofen 50mg,given a loading dose of 0.1mL/kg when closed chest.All patients were followed up for 48h.The incidence of adverse reactions such as vital signs,number of times,visual analog scale(VAS)score,sedation score,nausea and vomiting were recorded.Results There were no significant differences in the age,gender,body mass index and surgery duration among the three groups(all P >0.05).The vital signs were stable within 48h after operation.The VAS scores of N60 group were higher than the other two groups(N80 group:t =7.94,6.35,6.49,5.21,5.63,all P =0.00;N100 group:t =8.41,9.10,5.80,8.07,8.18,all P =0.00)at 4,6,8,24 and 48h after operation(all P <0.05).The VAS score of N80 group 48 h after operation was lower than that of N100 group(t =2.30,P =0.03),and the difference was not statistically significant in remaining(all P >0.05).The effective /actual compression ratio of PCIA of N80 group and N100 group were significantly higher than that of N60 group (t =7.30,8.35,all P <0.05). There were no differences in the incidence of adverse reaction among the three groups(group N80:χ2 =0.17,0.23, 1.03,all P >0.05;group N100:χ2 =3.14,0.23,1.03,all P >0.05).Conclusion Postoperative PCIA with nalbu-phine (80 mg)combined with flurbiprofen(150 mg)has significant analgesic effect and lower costs.

0.05).3.Thirty-three point three percent of animals from parental strain group were found fibrillations potentials and the po-sitive sharp waves in gastrocnemius electromyogram,no obvious abnormal waves were found in animals from both waaF mutant and control group.Conclusions The ganglioside-like epitope in LOS of CJ is critical antigen in inducing GM1-IgG antibody and in inducing conduction block of peripheral nerve,therefore,provide a support for the molecular mimicry theory as a pathogenesis in the axonal GBS following CJ infection.

AIM:To explore and compare effect of coaxial micro-incision phacoemulsification and standard coaxial phacoemulsification in the treatment of cataract.
METHODS:A total of 88 patients(88 eyes) with senile cataract who underwent selective cataract ultrasonic emulsification resorption combined with intraocular lens implantation in the hospital from Aug. 2013 and Aug. 2015 were selected, they were divided randomly into the control group ( 44 cases, 38 cases completed, 6 cases dropped out ) and the observation group ( 44 cases, 40 cases completed, 4 cases dropped out ) . The control group received standard coaxial 3. 0mm small incision phacoemulsification, the observation group received coaxial 1. 8mm micro-incision phacoemulsification. All patients were combined with intraocular lens implantation. Intraoperative effective ultrasonic time, cumulative release energy, best corrected visual acuity before and after surgery in the two groups were recorded, corneal endothelium cell population, incision corneal thickness, percentage of cornea hexagon cell, corneal astigmatism changes before the operation, 1d, 7d, 30d after the operation were compared.
RESULTS: There was no significant difference in intraoperative effective ultrasonic time, cumulative release energy in the two groups(P>0. 05). There was no significant difference in postoperative best corrected visual acuity between the two groups(P>0. 05). Corneal endothelium cell population, percentage of cornea hexagon cell 1d, 7d, 30d after the operation in the two groups were significantly decreased compared with those before the treatment ( P < 0. 05 ), but there was no significant difference in the two groups ( P > 0. 05 ). Incision corneal thickness 30d after the operation in the observation group was significantly lower than the control group(P<0. 05). Degree of corneal astigmatism in the observation group 1d, 7d, and 30d after the operation were significantly lower than the control group (P<0. 05).
CONCLUSION: Coaxial micro - incision phacoemulsification and standard coaxial phacoemulsification can improve visual acuity of cataract patients, but the former can reduce degree of corneal astigmatism.