Humans ; Myocardial Reperfusion Injury

Humans ; Myocardial Reperfusion Injury ; prevention & control ; Translational Medical Research

Animals ; Cytoprotection ; Humans ; Ischemic Preconditioning ; Reperfusion Injury ; prevention & control ; therapy

Objective:To establish a sensitive and fast HPLC method for determining cucurbitacin IIa in rat plasma and investigate the pharmacokinetic characteristics after intravenous administration. Methods: The analysis was performed on a Dikma Diamonsil C18 column (250 mm × 4. 6 mm, 5 μm) at 35℃ with the mobile phase of acetonitrile-water (45∶ 55, v/v) and the UV detection at 212 nm. The plasma samples were collected after intravenous administration at different time points and measured by HPLC. The pharmaco-kinetic parameters were calculated by DAS 2. 0 software. Results: The calibration plot of cucurbitacin IIa was linear over the range 0. 146-14. 060 μg · ml-1 . The range of method recovery was 99. 02%-104. 22% and that of extraction recovery was 84. 74%-86. 80%. The intra-and inter-day precision were both less than 5%. The stability met the requirements. The main pharmacokinetic pa-rameters were showed as follows:t1/2β(h):0.732 ±0.151, 0.681 ±0.055,0.667 ±0.064;Vd (L·kg-1):0.147 ±0.089, 0.131 ±0.095,0.153±0.047; Cl(L·h-1·kg-1): 0.287±0.031,0.304±0.063,0.318±0.029andAUC0→∞(mg·h·L-1):3. 646 ± 1. 124,4. 916 ± 1. 227,9. 385 ± 1. 419. Conclusion: The validated method is successfully applied in basic pharmacokinetic study in rat plasma after intravenous administration. The plasma concentration-time curves at three dosages are all fitted three-compart-ment model. Within the examined dose range, the pharmacokinetics of cucurbitacin IIa in rat is based on linear pharmacokinetics.

The study of brain's functional localization is one of the fastest developing domain of the neuroscience. It brings a new prospect of cognition, thinking and diagnosis and treatment of various nervous disease. Now, it is used widespreadly in neurosurgery, cognation, rehabilitation and social psychology, and etc. The article is a review concerning on the progression of clinical application and related studies of brain's functional localization.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Botulinum Toxins ; therapeutic use ; Child ; Female ; Head ; surgery ; Humans ; Male ; Middle Aged ; Neck ; surgery ; Otolaryngology ; methods ; Otorhinolaryngologic Surgical Procedures ; Young Adult

Air ; analysis ; Air Pollutants, Occupational ; analysis ; Ethane ; analogs & derivatives ; analysis ; Nitroparaffins ; analysis ; Uncertainty ; Workplace

Objective To investigate the prognostic factors and survival of patients with bronchopulmonary carcinoid tumors (BPC) after surgical treatment .Methods The clinical data of 87 patients undergoing surgery for BPC from Jan .2002 to Dec .2008 were reviewed retrospectively .Kaplan-Meier method was used to analyze the survival of the patients .The risk factors such as age , gender ,smoking history ,histological type ,tumor size ,were analyzed by Cox proportional hazards regression model .Results The 1-,3-and 5-year overall survival rates were 85 .1% ,71 .3% and 63 .2% .Univariate analysis revealed that age (P=0 .016) ,smoking history(P=0 .007) ,histological type(P=0 .000) ,tumor stage(P= 0 .000) ,tumor size(P= 0 .006) lymph node metastasis(P=0 .000) ,surgery type (P= 0 .045) and postoperative chemotherapy (P= 0 .000) were prognostic factors .Multivariate analysis showed that histological type(P=0 .008) ,tumor stage(P=0 .000) ,lymph node metastasis(P=0 .033) were independent prognostic factor .Conclusion The survival rate of the BPC patient after surgical treatment is high ,histological type ,tumor stage and lymph node metastasis were independent prognostic factors .

This study retrospectively analyzed 7 patients with severe pectus excavatum who underwent thoracoscope-assistant Nuss procedure from July 2006 to June 2008.All the participants were followed up for 1 to 24 months(mean,15.7 months).No intraoperative or postoperative complications were found in any of the patients.The operating time was 40 to 55 minutes.Mean hospital stay was 5 days (range,4 to 7days).Our experience with the minimally invasive repair of pectus excavatum might be encouraging.thoracoscope-assistant Nuss could effectively treat pectus excavatum in children,associated with minimal invasion,lower morbidity,less hospital stay,and considerable improvement in physiologic and psychological function.

Objective To evaluate the feasibility and efficacy of subfascial endoscopic perforator surgery in treating varicose ulcer after great saphenous vein stripping.Methods Between July 2008 and July 2013,152 limbs of venous ulceration after great saphenous vein stripping were divided into two groups (conservative therapy and subfascial endoscopic perforator surgery therapy) and followed up at least for 2 years,respectively compared symptoms and signs improvement,ulcer healing time,ulcer healing and ulcer recurrence rate after healing for 6,12,24 months.Results No patient underwent the surgery occured pulmonary embolism or death,2 limbs appeared hematoma.Conservative and subfascial endoscopic perforator surgery group's symptoms and signs improvement rates were 81.9％ (59/72) and 86.3％ (69/80) (not significant,P =0.528),while the ulcer healing time,ulcer healing and ulcer recurrence rate respectively were 65.3％ (47/72) and 78.8％ (63/80),(73 ±15.7) d and (41 ± 12.6) d,34.0％ (16/47) and 14.3 ％ (9/63) (significantly different,P ＜ 0.05).According to the three time-points' (6,12,24 months) follow-up,the non-recurrence rate were 89.4％ (42/47) and 96.8％ (61/63),P=0.135;72.3％ (34/47) and 92.1％ (58/63),P=0.006;66.0％ (31/47) and 85.7％ (54/63),P =0.014.Conclusions Subfascial endoscopic perforator surgery is a reliable,safe and minimally invasive surgery,and has a long-term effect in treating varicose ulcer after great saphenous vein stripping.