Objective To analyze the epidemic characteristics of multidrug-resistant tuberculosis(MDR-TB)in Hunan Province from 2013 to 2016,and provide theoretical basis for the prevention and control of tuberculosis.Methods Information about TB patients in Hunan Province reported by China Information System for Disease Control and Prevention between January 2013 and December 2016 was analyzed retrospectively.Results From 2013 to 2016,the total drug resistance registration rate in Hunan Province was 5.53/million(1 496/270 330 000),multidrug registration rate was 5.40/million(1 459/270 330 000),drug resistance rate and multidrug resistance rate showed an upward trends(trend x2 =113.605,96.590,respectively,both P<0.001).Among MDR-TB patients,male were more than females(74.09%vs 25.91%),most were more than 25 years of age,especially 45～age group(27.07%);the proportion of patients with MDR-TB retreatment was higher than that of the initial treatment(69.91%vs 30.09%).From 2013 to 2016,distribution range of MDR registration rates in different regions were 4.07/million-7.23/million.Conclusion MDR-TB in Hunan Province in 2013-2016 is increasing year by year,and mainly concentrate on young people over 20 years old.There are more cases of male and retreatment;it is necessary to strengthen regular treatment and prevention of key population,enhance the ability to identify and diagnose MDR-TB patients,and reduce the spread of MDR-TB.

Objective To investigate the effect of Neostigmine on Mivacurium Chloride in postoperative recovery of elderly patients with anesthesia.Methods A total of 46 patients (32 males,14 females,aged 60-73 years,ASA grade Ⅰ or Ⅱ) who underwent laparoscopic surgery for gastrointestinal tumor under general anesthesia,were randomly divided into two groups.Patients in the studying group (group A,n=22) were given a dosage of eostigmine 20 ug/kg after the end of surgery,and patients in control group (group B,n=24) were given 0.9% saline solution.Monitored the contract reaction of adductor pollicis through train-of-four ratio (TOFR) by stimulating ulnar nerve.Record condition of recovery from neuromuscular blocked,untoward effect after operation,the activity of the plasmacholinesterase at the time of induction of anaesthesia and extubation.Results The sex,age,height,weight,BMI,operation time,fluid volume,temperature,the activity of the plasmacholinesterase,recovery score and sedation score had no significant difference.Activity decline of the plasmacholinesterase is obviously related with infusion liquid volume,was statistically significant(P<0.05),group A is lower than group B obviously at the recovery of TOFR to 25%,to 70%,70% to 90%,onset time and recovery index time,was statistically significant (P<0.05),the difference of TOFR of the two groups was statistically significant at the time of 5 min、10 min、30 min after extubation (P<0.05).The difference of the incidence of TOFR<0.7 of the two groups at the time of 5 min,10 min,30 min after extubation and the difference of the incidence of TOFR<0.9 of the two groups at the time of 10 min,30 min after extubation were statistically significant (P<0.05).Conclusion There is obvious significance for neostigmine to resume muscle force in mivacurium chloride postoperative recovery in the elderly.

Objective To investigate the effect of acetyl-L-carnitine (ALC) preconditioning on the PC12 cell apoptosis induced by oxygen-glucose deprivation.Methods PC12 cells were seeded in 96-well plates and randomly divided into 5 groups ( n =6 each):control group (group C),cell injury group (group Ⅰ) and preconditioning with different concentrations of ALC groups (groups A1-3 ).In group C,the cells were incubated with DMEM liquid culture medium containing glucose 0.5 g/L for 3 h.In groups Ⅰ and A1-3 the cells were incubated with DMEM liquid culture medium containing sodium hydrosulfite (Na2S2O4) 3 mmol/L and glucose 0.5 g/L for 3 h,and in addition the cells were pre-incubated with ALC 0.2,0.4 and 0.6 mmol/L for 24 h in groups A1-3 respectively.Cell viability was evaluated by MTF assay,while the apoptosis in cells was detected using TUNEL.The activities of ATPase and SOD and MDA content were also detected.Results Oxygen-glucose deprivation significantly increased the number of apoptotic cells and the content of MDA,and decreased the cell viability and activities of SOD and ATPase in group Ⅰ compared with group C ( P ＜ 0.05).Preconditioning with ALC significantly increased the cell viability and the activities of SOD and ATPaes,and decreased the number of apoptotic cells and the content of MDA in groups A1-3 compared with group Ⅰ ( P ＜ 0.05).Conclusion ALC preconditioning can attenuate PC12 cell injury induced by oxygen-glucose deprivation through inhibition of apoptosis in cells.