Parkinson's disease (PD) is a neurodegenerative disease commonly found in middle-aged and elderly people,and its onset is attributable to both genetic and environmental factors. The gene mutation and oxidative damage of DJ-1 correlate with familial and sporadic PD,respectively. The mechanisms by which DJ-1 gene mutation and oxidative damage lead to PD include oxidative stress,mitochondrial dysfunction and proteasome dysfunction.Furthermore,DJ-1 is a biomarker of sporadic PD and it may become a new potential target of anti-PD drugs.

To study the in situ intestinal absorption kinetics and compatibility influence of peimine and peiminine in rats, the absorption of peimine and peiminine in small intestine (duodenum, jejunum and ileum) and colon of rats was investigated using in situ single-pass perfusion method and the drug content was measured by HPLC-ELSD. Perfusion rate, pH, concentration of drug, gender and bile duct ligation can significantly affect the absorption of peimine and peiminine, the Ka, and Papp values in the condition of pH 6.8 and pH 7.4 had significant difference (P<0.01), as drug concentration irlcreased, the absorption parameters of peimine and peiminine decreased, Ka and Papp between low concentrations and middle concentrations was significant difference (P<0.01). Verapamil can not affect Ka and Papp of peimine and peiminine which are in the extract (P> 0.05). Bitter almonds and licorice can significantly reduce the absorption of peimine and peiminine with the usual dose (P<0.01), extracted separately and together had no significant difference on Ka and Papp (P> 0.05). Experimental results show that the absorption features of peimine and peiminine are basically the same, both of them could be absorbed at all segments of the intestine in rats and had no special absorption window, and with significant differences between male and female individuals. The absorption of peimine and peiminine complies with the active transport and facilitated diffusion in the general intestinal segments. Bitter almond and licorice can reduce the intestinal absorption rate ofpeimine and peiminine.

Objective To evaluate the value of CT scan in patients with obstructive sleep apnea syndrome (OSAS) pre and post surgical operations.Methods 36 patients with OSAS and 50 normal adults were included in this study .The patients were divided into two typesaccording to the location of stricture site .The upper airway from roof of nasopharynx to glottis was evaluated using a Siemens Somatom Spiral Scanner and divided into upper pharyngeal and lower pharyngeal. The cross sectional area of two planes were measured and calculated. Meanwhile, The surgical effect of two types were compared by the pharyngeal area and AHI, SaO2 pre and post operations.Results Ⅰ type:The area of upper pharyngeal expanded (P0.05).AHI from 52.7 to 37.2 and SaO2 from 59.8% to 68%(P

Objective To investigate the clinical outcomes of treating fractures of the middle-inferior humerus with double plate fixation via the upper arm posterior approach through the inner edge of the joint triceps tendon.Methods From May 2013 through May 2015,32 fractures of the middle-inferior humerus were treated with open reduction and double plate fixation by the upper arm posterior approach via the inner edge of the joint triceps tendon.They were 19 males and 13 females,aged from 17 to 54 years (mean,36.8 years).Involved were 14 left sides and 18 right sides.By AO classification,21 cases were type B and 11 type C,all closed fractures.X-ray examinations were regularly conducted at postoperative follow-ups;function of the elbow joint was assessed according to the Jupiter elbow joint grading system at the final follow-up.Results All the 32 patients were followed up for 6 to 20 months (average,11.5 months).The fractures healed after 4 to 7 months (average,5.0 months).The flexion ranged from 120° to 135° (average,125°),and the extension ranged from 0 to 8° (average,5°).There were no such complications as postoperative infection,plate breakage,or nonunion.According to the Jupiter elbow joint grading system at the final follow-up,there were 15 excellent cases,14 good ones,and 3 fair ones,giving a good to excellent rate of 90.6％.Conclusion Open reduction and double plate fixation by the upper arm posterior approach via the inner edge of the joint triceps tendon is simple for fractures of the middle-inferior humerus and leads to satisfactory reduction,reliable fixation,and fine outcomes.

Objective To explore the value of echocardiography in percutaneous left atrial appendage (LAA)closure for stroke prevention in patients with nonvalvular atrial fibrillation during procedure and for short-term follow-up.Methods Twenty patients were enrolled to undergo percutaneous LAA closure with the LAmbre device.Rheumatic valvular diseases were excluded by transthoracic echocardiography (TTE) and transesophageal echocardiography(TEE)before the closure procedure.TEE was performed during the procedure for the trans-septal puncture and the release of the closure device.Combined TEE with angiographic measurements,guidance for the optimal device size was provided.The closure effect and procedure-related complications were observed immediately by TEE and also evaluated by TTE at 1-day and 1-month follow-up.Results All patients underwent LAA occlusion successfully.TEE color Doppler evaluation have shown nine patients with complete closure immediately,one with a ≤ 1 mm residual LAA leak,and ten with a 1 -3 mm jet.There were no other complications during the procedure.One day after the closure,small pericardial effusions were observed for three patients while two of the three were free of the pericardial effusion at the 1-month follow-up.During the short-term follow-up,no damage was found at any anatomical structures near LAA due to the closure process,and there was no significant difference of cardiac function before and after the procedure.Conclusions With the guidance of TEE,the successful rate of percutaneous LAA closure procedure was preferable and the occurrence rate of compliance was acceptable. And TTE played an important role in patients'short-term follow-up.

Objective To observe the prevalence of cancer-associated anemia and its effect on elderly patients with advanced cancer.Methods Functional Assessment of Cancer Therapy-Anemia Version 4 (FACT-An) was used to investigate the quality of life (QOL) of 86 elderly patients with advanced cancer.The patients were divided into anemia group and non-anemia group.The influence factors for QOL of the elderly patients with advanced cancer were examined,and a multivariate regression was used.Results The prevalence of cancer-associated anemia in elderly patients with advanced cancer was 61.63 ％ (53/86).The scores in physical well-being (16.03±4.14 vs 12.47±4.68,P =0.001),emotional well-being (11.30±3.98 vs 9.45±4.04,P =0.041),functional well-being (13.61±3.74 vs 10.30±4.02,P ＜ 0.001),additional concerns (57.39±7.28 vs 40.06±10.45,P ＜ 0.001) and FACT-An (111.70±13.19 vs 84.34±18.95,P ＜ 0.001) of the non-anemia group were all significantly higher than those of the anemia group.The multivariate regression analysis results indicated that hemoglobin (P ＜ 0.001),comorbidities (P =0.002),performance status (P =0.018),age (P =0.030) were the influence factors for QOL of elderly patients with advanced cancer.Conclusion The morbidity of anemia in elderly patients is increased and it affects the QOL of senior patients with advanced cancer.

Objective To investigate the feasibility and clinical effect of damage control theory for patients with high?energy Pilon fracture?Methods Fifty?three cases patients with high?energy Pilon fracture were selected in the Traditional Chinese Medical Hospital of Foshan from March 2013 to June 2014 as observation group ( DCO group ) , 46 cases of non?DCO guidance high?energy Pilon fracture as the control group?Intraoperative blood loss,operative time,hospital stay,complications,fractures and function were compared between two groups?Results After the treatments,the intraoperative blood loss,operative time in the DCO group were significantly better than those in the non?DCO group((88?79±4?96) ml vs?(117?74±6?74) ml,(67?44 ±4?75) min vs?(81?43±3?66) min),theses differences were statistically significant between the two groups(t=3?720,5?601,P<0?05)?The complications in the DCO group were significantly less than those in the non?DCO group(22?6%(12/53) vs?52?2%(24/46)),the difference was statistically significant between the two groups(χ2=5?013,P=0?014)?The excellent rate of in the DCO group were significantly better than those in the non?DCO group( 64?15%( 34/53) vs?41?30%( 19/46) ) ,the difference was statistically significant between the two groups (χ2 =6?097, P=0?000 )?Conclusion Reasonable application of the DCT can be quickly and effectively to save the patient's life and improve stability fracture,and reduce the incidence of complications?It is a safe and effective method.

Object To study the adsorption function of macroporous resin AB 8 for the purification of total flavones in Sophora flavescens Ait and the effects of concentration, pH, flow rate of the adsorbate and eluant Methods UV spectrophotometry was used to analyze the content of total flavone in S flavescens Results The appropriate adsorption conditions were: concentration of Sophora extract, 0 285 mg/mL ; pH=4; flow rate 3 BV/h, when 50% alcohol was used as eluant, the effect of desorption was satisfactory Conclusion AB 8 resin can be used to refine the total flavone in S flavescens

Objective To study the possible mechanisms by which repetitive transcranial magnetic stimulation (rTMS) pretreatment antagonizes seizures induced by lithium chloride-pilocarpine and any correlation with antiapoptosis in hippocampal CA1 neurons.Methods Thirty rats were randomly divided into a control group, a sham stimulation group and an rTMS pretreatment group. The rTMS pretreatment group was pretreated on 7 consecutive days with low-frequency rTMS (0.5 Hz, 75％ of threshold intensity, 20 times/bundle, and 5 bundles/d), while the sham-stimulation group was sham-stimulated with a similar sound. Lithium chloride-pilocarpine ( LPC ) was used to induce a model epileptic state.Epileptic stroke latency and severity were recorded ; neuronal morphology was observed using hematoxylin and eosin (HE) staining; mean positive-reactive cell number and mean optical density and absorbance of B cell lymphoma/leukemia gene-2 (Bcl-2) were recorded, and Fas and Caspase-3 protein in the hippocampal CA1 region were observed with immunohistochemistry.Results Compared with the sham stimulation group, epileptic latency in the rTMS pretreatment group was significantly longer. Seizures in the rTMS pretreatment group were less severe, and a number of degenerated neurons were observed to be apoptotic. Bcl-2 protein expression increased at each time point, but Fas and Caspase-3 protein expression decreased.Conclusions rTMS pretreatment has an anti-epilepsy effect. The possible neuronal protection might be produced by regulating the expression of Bcl-2, Fas and Caspase-3 protein in the hippocampus.

ObjectiveTo investigate the ultrasonographic indicators predicting the outcomes of selective fetal growth restriction (sFGR)fetusesin monochorionic twinsunder expectant management. MethodsMonochorionic twins with sFGR diagnosed in the First Affiliated Hospital of SUN Yat-sen University from Jan.2005 to May 2010 were included into this study.All patients underwent expectant treatment.Ultrasound appearances of monochorionic twins were documented in detail when sFGR was diagnosed.At the initial evaluation,presence or absence of the following abnormalities were documented, including abnormal Doppler flowin theumbilical artery,polyhydramnios in the larger twin,oligohydramnios,fetal weight discordance and velamentous cord insertion in sFGR fetuses; gestational age at diagnosis was recorded as well.The relationship between these ultrasound characteristics and mortality of sFGR fetus was analyzed with Logistic regression.ResultsOf 51 sFGR fetuses,11 (21.6％) suffered from fetal death,including four intrauterine demise and seven neonatal deaths both twins were dead in 3 cases. Logistic regression analysis demonstrated that oligohydramnios (OR=22.80,95％CI:3.58-145.31,P=0.001) and abnormality of diastolic flow in the umbilical artery (OR=6.51,95％CI:1.16-36.53,P=0.033) were independent risk factors of mortality of sFGR fetuses. Conclusions Both oligohydramnios and abnormal Doppler flow in the umbilical artery suggest poor prognosis of sFGR fetuses in monochorionic twins.