Objective To explore the acute toxicity and LD 50 of Tripterygium Hypoglaucum (Levl) Hutch(THH) solution to provide information for safe clinical application. Methods After oral administration of THH solution in mice, the mortality and the physiological and pathological changes were observed. Results The LD 50 (95% confidence limit) of THH in male and female mice was 79 g/kg(69～89 g/kg) and 100 g/kg (90～112 g/kg), respectively. No marked pathological change of the organs was found. Conclusion According to the standard of grading of acute toxicity, THH solution belongs to the moderate class. Therefore, it is safe in clinical practice and has a wide application.

Objective To discuss whether the separating block of sensory nerve with acupoint-injection and epidural analgesia by ropivacaine during labour.Methods Ninty full term primigravidae with ASAⅠ～Ⅱwere randomly divided into 3 groups:group E(n = 30),group C(n = 30)and group A(n = 30).When the external cervi- cal os was dilated to 3cm,group A:acupiont-injection to Ci Liao;group E:epidural analgesia with 0.075% ropiva- caine and fentanyel 2?g/ml;group C:combining group A and group E except fentanyel 2?g/ml.Level of pain(VAS scores),degree of sensory and motor block,the mode of delivery,the progress of labour and side effects were recorded and compared.Results The level of pain(VAS scores)in group A was higher than that of group C and group E,and there were no significant differences in group C and group E,Bur there were some side effects discovered in group E. There was no significant differences of the mode of delivery in the groups.Conclusion The method that acupoint- rejection combined with epidural analgesia by 0.075% ropivacaine is effective and has no side effects for labour.

OBJECTIVETo study on effects of acupuncture at a same point at physiological or pathological state on brain functional imaging.

METHODSElectroacupuncture was given at Neiguan (PC 6) of the healthy senile persons (normal group) and the patients of Alzheimer's disease (AD group), and they were scanned on a 1.5 T MRI scanner and the data of functional magnetic resonance imaging (fMRI) were analyzed by Statistical Parametric Mapping (SPM99). The functional imaging of different brain regions were obtained from both the healthy group and the AD group.

RESULTSBoth the frontal lobe and the temporal lobe were activated in varying degrees by electroacupuncture at Neiguan (PC 6) in the healthy group. However, the frontal lobe, the temporal lobe and the cingulate gyrus as well as the cerebellum were activated in varying degrees and other brain regions were not activated by electroacupuncture at Neiguan (PC 6) in the AD group.

CONCLUSIONAcupuncture at Neiguan (PC 6) can activate functions of different brain regions in the healthy group and the AD group, indicating that acupuncture at Neiguan (PC 6) has different effects on functional magnetic resonance imaging in different functional states.

Acupuncture ; Acupuncture Points ; Acupuncture Therapy ; Brain ; Humans ; Magnetic Resonance Imaging

Objective To evaluate hemodynamic changes in liver treated by transjugular intrahepatic portosystemic stent-shunt(TIPSS)with hepatic computed tomography(CT)perfusion,Doppler ultrasound and portal vein pressure measurement,as well as the correlation among these methods.Methods Hepatic CT perfusion was performed in 9 cirrhotic patients one week before TIPSS and 72 hours after TIPSS. Intraoperative portal vein pressure was measured before and after portosystemic shunt establish.The follow- up hepatic CT perfusion were carried out in 3 cases at 3 months and 6 months postoperatively.The hemodynamic surveillance by Doppler ultrasound were performed in 48 hours and 3 months after TIPSS for 9 cases,and in 6 months after TIPSS for 6 cases.Two cases underwent venography and portal vein pressure measurement in 6 months after TIPSS treatment.Results The mean of portal vein perfusion(PVP),total hepatic blood flow(THBF),hepatic perfusion index(HPI)and portal vein free pressure(PVFP)before TIPSSwere(0.92?0.18)ml?min~(-1)?ml~(-1),(1.28?0.17)ml?min~(-1)?ml~(-1),(28?8)%,and (23.92?0.86)mmHg,respectively.In 72 hours after TIPSS,the mean of PVP,THBF,HPI and PVFP were(0.21?0.15)ml?min~(-1)?ml~(-1),(0.74?0.18)ml?min~(-1)?ml~(-1),(74 +13)%,and (12.62?1.54)mm Hg,respectively.After treatment,the mean of PVP was(0.49?0.05)ml?min~(-1)? ml~(-1)at 3 months and(0.57?0.03)ml?min~(-1)?ml~(-1)at 6 months,respectively.There was negative correlation between PVP and PVFP before TIPSS(r=0.678,P0.05).Moreover,a signifieant correlation was found between the degree of portal vein pressure decrease and portal vein perfusion decrease(r=0.867,P

OBJECTIVETo explore the clinical and function efficacy of the treatment of Herbert B2-type scaphoid fracture through volar approach with double screws prograde internal fixation.

METHODSFrom December 2005 to June 2010,18 patients with Herbert B2-type scaphoid fracture were treated with double screws prograde internal fixation through volar approach, including 14 males and 4 females with an average age of 33.11 years (ranged from 21 to 52 years). The fracture healing situation was evaluated by X-ray examination. Functional outcome was assessed by using Modified Mayo wrist score.

RESULTSAll patients were followed up with a mean time of (25.06 +/- 4.00) months. The bone healing time was (3.55 +/- 0.65) months. The pain,passive range of motion, grip of wrist were improved at 4 months after operation (P < 0.05). The Mayo wrist score were improved from preoperative 42.78 +/- 7.32 at 4 months after operation (93.89 +/- 5.83) (P < 0.05), the results were excellent in 9 cases and good in 9 cases.

CONCLUSIONVolar approach with double screws prograde internal fixation is an efficacy and safety surgical technique for Herbert B2-type scaphoid fracture.

Adult ; Bone Screws ; Female ; Fracture Fixation, Internal ; instrumentation ; methods ; Humans ; Male ; Middle Aged ; Palmar Plate ; surgery ; Range of Motion, Articular ; Scaphoid Bone ; injuries ; surgery ; Wrist Injuries ; physiopathology ; surgery ; Young Adult

OBJECTIVE: To explore the mechanism of Chaiqin Chengqi Decoction (CQCQD) in treatment of rats with acute necrotizing pancreatitis (ANP). METHODS: Thirty SD rats were randomly divided into 3 groups: sham-operated (SO) group, ANP group and CQCQD-treated group. ANP was induced by retro-pumping 3.5% sodium cholate to common bile duct. Blood sample was collected from abdominal vein for examination and the pancreatic tissue samples were taken for making pathology section 6 hours later. The pancreatic tissue (HE staining) was observed by light microscope. The content of tumor necrosis factor-alpha (TNF-alpha) and interleukin-6 (IL-6) was detected with the method of enzyme-linked immunosorbent assay, and the activation of nuclear factor-kappaB (NF-kappaB) in pancreas was detected by immunohistochemical method. RESULTS: Compared with the SO group, there was dramatic increase in the white blood cell (WBC) counts and AMY level in the ANP group (P<0.05, P<0.01). Compared with the ANP group, the WBC counts and AMY level in CQCQD-treated group were significantly reduced (P<0.05). The edema, inflammatory infiltration, haemorrhage and necrosis scores and total pathological score in the ANP group were obviously higher than those in the SO group (P<0.01). The edema, haemorrhage and inflammatory infiltration scores and the total pathological score in CQCQD-treated group were decreased (P<0.05). The integral optical density of NF-kappaB p65 positive cells of pancreas in CQCQD-treated group was lower than that in the ANP group (P<0.05). CONCLUSION: CQCQD can reduce the content of serum TNF-alpha and IL-6, depress the activation of NF-kappaB, and lessen the pancreatic lesions.

OBJECTIVE: To investigate the occurring mechanism and clinical characteristics of severe acute pancreatitis (SAP) associated with hypoalbuminemia in early stage and its influence on prognosis of SAP and the preventive and therapeutic management of this disease. METHODS: One hundred and thirty-eight cases diagnosed as SAP complicated by hypoalbuminemia in early stage were accepted in our hospital from August 1, 2003 to December 31, 2004, and they were divided into 2 groups according to the level of plasma albumin: mild hypoalbuminemia (30 to 35 g/L) group and severe hypoalbuminemia (<30 g/L) group. The complications in the early stage, related parameters, and the incidence rate of infection and mortality in the later stage were evaluated respectively. RESULTS: The incidence rates of renal dysfunction, shock, cardiovascular failure and gastrointestinal hemorrhage, the score of acute physiology and chronic health evaluation II (APACHE II ) and the frequencies of pulse and breath in the severe hypoalbuminemia group were all higher than those in the mild hypoalbuminemia group (P<0.05 or P<0.01). The differences of incidence rate of hepatic failure and the scores of Ranson and Balthazar CT between these two groups had no statistical significance (P>0.05). The incidence rate of infection and the mortality in the severe hypoalbuminemia group were higher than those in the mild hypoalbuminemia group (P<0.01) in the later stage of SAP. CONCLUSION: Hypoalbuminemia in the early stage can accelerate the deterioration in pathophysiology of SAP. The lower level of the plasma albumin is in the early stage, the more complications and the higher incidence rate of infection and mortality will be in the later stage. To relieve the extent of systemic inflammatory response syndrome (SIRS) and abundant supplement of albumin, amino acid and lipid in time may be crucial to prevent the occurrence and deterioration of hypoalbuminemia.

OBJECTIVE: To study the therapeutic effects of Chaiqin Chengqi Decoction (CQCQD) in treating severe acute biliary pancreatitis. METHODS: Ninety patients with severe acute biliary pancreatitis were treated with CQCQD, and they were divided into two groups: early-treated group (54 patients treated with CQCQD within 3 days after the onset of severe acute biliary pancreatitis) and late-treated group (36 patients treated with CQCQD between 3 and 7 days after the onset of severe acute biliary pancreatitis). The complication incidence rate, operation rate, mortality rate and hospitalization period were examined. RESULTS: The incidence rates of encephalopathy, infection and gastrointestinal hemorrhage were lower in the early-treated group than those in the late-treated group (P<0.05). The hospitalization periods of the early- and late-treated groups were (24.9+/-18.4) days and (51.6+/-45.9) days respectively (P<0.05). The general mortality rate was 14.4%. The mortality rate of the early-treated group (7.4%) was significantly lower as compared with that of the late-treated group (25.0%) (P<0.05). The operation rate of the early-treated group (11.1%) was also significantly lower as compared with that of the late-treated group (27.8%) (P<0.05). CONCLUSION: Treating severe acute biliary pancreatitis with CQCQD in early stage may reduce the complication incidence rate, shorten the hospitalization period, and decrease the operation rate and mortality rate.

Objective To investigate the antimicrobial resistance of clinical isolates from a hospital in Chongqing during one year according to CHINET project.Methods Disc diffusion test (K-B method) was employed to study the antimicrobial resistance. WHONET5 was used for data analysis.Results In one year period from 2004 to 2005,690 non-duplicate isolates were collect- ed.Enterobacter isolates showed the lowest resistance rate to imipenem and meropenem.About 37.5% of E.coli and 31.4% of K.pneumoniae isolates produced ESBLs,respectively.All ESBLs-producing strains were susceptible to imipenem and mer- openem.About 37.2%,39.4% and 48.9% of P.aeruginosa isolates were resistant to imipenem,meropenem and ceftazidime, respectively.Pandrug-resistant (PDR) P.aeruginosa was isolated from our hospital.All strains of A.baumannii were sus- ceptible to imipenem and meropenem.About 37.7% of A.baumannii were resistant to cefoperazone-sulbactam.Twenty-nine strains showed the same resistant pattern among non-susceptible strains of A.baumannii,mainly derived from 2 clones by PFGE analysis.Conclusions The surveillance results suggest that prevalent strain resistant to cefoperazone-sulbactam may pres- ent in some ICUs.Resistance rate to cefoperazone-sulbactam increased significantly.

Background Granulocyte colony-stimulating factor(G-CSF)has been reported to have beneficial effect on cardiac dysfunction in post infarction and doxorubicin-induced cardiomyopathy.Objective To investigate the effects of G-CSF on cardiac remodeling in cardiac hypertrophy induced by angiotensin Ⅱ(Ang Ⅱ).Methods Thirty-six male wild type mice(WT)were allocated randomly to receive subcutaneously G-CSF(10 ?g/kg per day, n=9),or Ang Ⅱ(2.88 mg/kg per day,n=9),or Ang Ⅱ plus G-CSF(Ang Ⅱ 2.88 mg/kg+G-CSF 10 ?g/kg,n =9)for 4 weeks with untreated WT(n=9)as controls.Blood pressure and cardiac function were measured. Heart weight/body weight ratio,myocyte cross-sectional area and fibrosis area were determined.The mRNA ex- pression of osteopontin(OPN)in myocardium was detected by RT-PCR.The expressions of angiotensin converting enzyme(ACE),ACE2 and phosph-p70S6 kinase protein in myocardium were assessed by Western-Blot.Results Ang Ⅱ significantly elevated blood pressure(SBP,Ang Ⅱ:139.7?1.6 vs WT:108.7?2.3 mmHg,P0.05),but significantly attenuated the myocyte cross-sectional area(Ang Ⅱ+G-CSF:181.06?0.11 vs Ang Ⅱ:202.02?0.16 ?m~2,P