Objective To explore the mechanism of the interaction between sulfur dioxide(SO2) and bovine serum albumin (BSA). Methods The spectrum characteristic of the interaction between SO2 and BSA was studied by fluorescence quenching spectrum and three dimensional fluorescence spectrum. Results The binding constants and thermodynamic parameters of SO2 with BSA were calculated at different temperatures. The quenching mechanism of BSA by SO2 was determined,the result showed that it did not belong to dynamic quenching but belonged to static quenching,which produced the complex. The hydrophobic interaction and electrostatic force played a main role in the binding of SO2 with BSA and only about one binding site occurred in the reaction. There was a certain influence to the conformation of BSA after adding SO2. Conclusion The quenching reaction of BSA by SO2 was weak. SO2 dissolved in body fluid easily and then SO32-and HSO3-are generated in vivo.

Objective To evaluate the feasibility and clinical value of endoscopic decompression with metal stent and colorectal tube for acute malignant colorectal obstruction. Methods With the aid of fluoroscopy, 26 cases with acute malignant colorectal obstruction were treated. Their obstructive sites consisted of rectum(n=14), sigmoid colon(n=8), descending colon(n=2) and transverse colon(n=1). Results In 18 of 26 patients, metal stents were successfully inserted (18/20, 90%), in 6 cases colorectal tube were successfully inserted(6/6, 100%), the total technical success rate was 92. 3% (24/26). Thereafter, 1 patient has no effect, 23 patients showed relief of obstructive symptoms within 1-2 days, the clinical success rate was 88.5% (23/26). Permanent metal stent placements were performed in 13 cases for palliative treatment, 10 underwent subsequent elective surgical resection after 7 ~ 10 days, without complications, such as anastomotic leakage and intraperitoneal infection. One case was failed in recurrent rectal carcinoma after resection, one case with widespread metastatic sigmoid colon carcinoma occurred colon perforation and received immediate Hartmann operation. Recurrent obstruction was detected in one patient with distal stent migration within 6 weeks, and second stent were placed to solve the problems. Stent occlusion from stool impaction was found in one patient 1 month after stent insertion, and was solved by endoscpic interventions. Conclusion Endoscopic decompression with metal stent and colorectal tube can alleviate the acute malignant colorectal obstructive sympotoms with high success rate. It is a simple, safe, effective and well tolerated method, and can obviate colostomy, prominently reduce trauma and agony, and increase the living quality of patients.

Objective To investigate the prevalence rate of healthcare-associated infection(HAI)in a hospital,so as to provide reference for making HAI control measures.Methods The cross-sectional survey on HAI was carried out among all hospitalized patients on May 26,2010,December 12,2012 and December 4,2013,respectively,sur-veyed data were analyzed.Results The prevalence rate was 6.66%(n =116),6.67%(n =113)and 6.33%(n =120)in 2010,2012 and 2013 respectively,and case rate was 7.29%(n=127),7.38%(n=125)and 6.97%(n=132) respectively,intensive care unit(ICU )had the highest infection rate,internal medicine ICU was up to 71 .43%. The main infection site was lower respiratory tract(44.53%),followed by surgical site infection (9.11 %)and uri-nary tract infection (9.11 %).The isolation rate of gram-negative bacteria,gram-positive bacteria and fungi was 60.81 %,20.38% and 18.81 % respectively.Usage rate of antimicrobial agents in three years was 32.95%, 29.87% and 25.59% respectively (χ2 = 13.16,P <0.01 ).Conclusion Prevalence rate of HAI in this hospital is high ,the main pathogen is gram-negative bacteria,the main infection site is lower respiratory tract ,antimicrobial use decreased year by year.Monitor on high risk departments,main sites and pathogens should be intensified.

Objective To compare the cognitive function of patients with carotid stenosis combined with white matter lesions (WML)after carotid artery stenting (CAS). Methods Total 166 patients with carotid artery stenosis were collected.According to MRI imaging,30 patients with no white matter lesions were included in the control group and 136 patients with white matter lesions were included in the white matter lesions group. They were treated with carotid artery stenting and underwent evaluation on the safety and efficacy of perioperative surgery. CAS failed in two patients because of the inability of guidewire crossing in WML group. Two patients died after CAS (one for cardiac death and one for traumatic accident) in WML group. 162 patients received 1 year follow-up. Cognitive function was assessed before and after CAS. Results Before CAS,WML group's MMSE, digit span forward/backward test, verbal fluency test and MoCA scores (21.8±3.3、6.3±2.1、4.1±1.0、15.1±3.6、20.6±3.1) were lower compared with control (24.3±3.9、7.3±2.6、4.7±1.8、17.7±5.2、22.7±4.2) and ADAS-Cog score was higher compared with control ((15.1±3.3) vs.(12.7±3.3)), P=0.000、0.026、0.039、0.012、0.000、0.011.Three months after CAS,the MMSE,digit span forward test and MoCA scores (23.7±3.6,7.5± 2.4, 23.1±6.9) was higher significantly than those before treatment (21.8±4.3, 6.3±2.09, 20.6±4.13), P<0.05.And the scores of ADAS-Cog was lower((13.2±4.)vs.(15.1±4.3),P<0.05).The scores of digit span backward test in 6 months after treatment was significant higher than those before treatment (4.9 ±2.8,4.1 ±2.2,P<0.05). After 1 year of CAS, the improvement in scores of MMSE, digit span forward test, ADAS-Cog and MoCA in patients with carotid stenosis complicated with WML(3.5±1.3,1.6±0.6,-2.6±0.8,3.6±1.1)was higher significant than control(2.7±1.8, 1.2±0.8, -2.0± 1.3, 2.7 ±1.5),P<0.05. Conclusion CAS can improve cognitive function in Patients with carotid artery stenosis complicated with WML than those who without WML.

OBJECTIVE: To observe the effect of heat sensitive moxibustion based on the articular injection for knee joint synovitis. METHODS: Sixty-seven patients with knee joint synovitis were randomly assigned into an observation group (34 cases) and a control group (33 cases). Articular injection of triamcinolone was used in the control group for 2 courses, 2 times as a course, once 5 days. Based on the treatment in the control group, heat sensitive moxibustion was used in the observation group for 2 courses, 2 weeks as a course, 5 times a week. The acupoints were Yanglingquan (GB 34), Yinlingquan (SP 9), Liangqiu (ST 34), Xuehai (SP 10), Heding (EX-LE 2) or the pain point, subcutaneous nodules around the patella. American Knee Society (AKS) score was measured before and after treatment and one month after treatment. At the same time, the knee joint synovium thickness was measured by MRI; the knee joint effusion was observed by ultrasound; the serum interleukin-1 (IL-1) and matrix metalloproteinase-3 (MMP-3) were measured. RESULTS: After treatment, the AKS scores increased in the two groups (both <0.05); after treatment and at follow-up, the AKS scores in the observation group were higher than those in the control group (both <0.05); at follow-up, the AKS score in the control group was lower than that after treatment (<0.05). After treatment, the synovium thickness, effusion, IL-1 and MMP-3 were lower than those before treatment in the two groups (all <0.05); after treatment and at follow-up, the four indexes in the observation group were lower than those in the control group (all <0.05); at follow-up, the four indexes in the control group increased than those after treatment (all <0.05). CONCLUSION Heat sensitive moxibustion combined with medicine articular injection can improve synovium inflammatory reaction and the absorption of effusion in the articular cavity,with long-time effect, which are better than simple medicine articular injection.
Acupuncture Points ; Hot Temperature ; Humans ; Knee Joint ; Moxibustion ; Osteoarthritis, Knee ; Synovitis ; therapy ; Treatment Outcome

Objective:To observe the curative effects and complications of open reduction and fixation with cannulated screws and an augmented plate for Pauwels type Ⅲ femoral neck fractures.Methods:A retrospective study was conducted to analyze the data of 8 patients with fresh Pauwels Ⅲ femoral neck fracture who had been treated from January 2015 to October 2018 at Department of Trauma and Orthopaedics, Xinjiang Uygur Autonomous Region Hospital of Traditional Chinese Medicine. There were 7 males and 1 female with an age of (47.7±14.0) years. The Pauwels angle ranged from 50° to 70° in 6 cases and was >70° in 2 cases. As the original closed reduction was not ideal in all the patients, open reduction via the modified Smith-Petersen approach and fixation with cannulated screws and an augmented plate were performed. Fracture healing, Harris hip score, and complications were followed up at 1 month, 6 months, 1 year, and 3 years postoperatively.Results:At 1 month after operation: 8 patients were followed up, their Harris hip score was (38.4±3.6) points, and there were 7 cases of femoral neck shortening and 1 case of incision fat liquefaction. At 6 months after operation: 7 patients were followed up, their Harris hip score was (70.6±2.8) points, and 1 patient healed anatomically, 4 patients healed with shortening, and 2 patients healed with delay and shortening. Femoral neck shortening, withdrawal of cannulated screws, and screw loosening within the augmented plate were all increased compared with 1 month after operation. At 1 year after operation: 7 patients were followed up, their Harris hip score was (85.5±4.4) points, there were no significant changes in fracture healing or complications compared with 6 months after operation. At 3 years after operation: the patient lost to prior follow-up died of heart disease 34 months after operation, 1 patient had to undergo total hip arthroplasty due to fracture nonunion and cutout of cannulated screws at 16 months after operation, and the other 6 patients had a Harris hip score of (93.6±2.5) points. Of the 6 patients, femoral neck fracture healed in 5 (shortening healing in 4, including 1 case complicated with femoral head necrosis, and anatomical healing in 1) but did not in one.Conclusions:In the treatment of Pauwels type Ⅲ femoral neck fractures, open reduction and fixation with cannulated screws and an augmented plate does not lead to ideal curative effects. The main complication is shortening of the femoral neck. The auxiliary role of augmented plate fixation is not obvious.