AIM To investigate the effects of thiopental sodium on nitric oxide synthases (NOS) activity and nitride oxide (NO) in different rats cerebral synaptic membrane. METHODS Forty SD rats were divided randomly into five groups. The animals were injected introperitoneally (ip)thiopental sodium 30 mg?kg -1 or normal saline 10 ml?kg -1 (control group ) respectively. These rats were immediately decapitated before (induction group) and after (anaesthetic group) having disappeared righting reflex, and when righting reflex appeared again (recovery group), and completely conscious (awake group). In order to prepare synapsis, brain tissues were dissected on ice, then homogenized and centrifuged. NOS activity and NO was estimated by spectrophotometry. RESULTS Thiopental sodium 30 mg?kg -1 ip significantly inhibited NOS activity of cortex, brain stem and synaptic membrane as compared with that of normal saline group( P

Objective To evaluate the relationships of the serum levels of matrix metalloproteinase-9 (MMP-9), intercellular adhesion molecule-1 (ICAM-1) and adiponectin with the mild cognitive impairment (MCI) in senile metabolic syndrome (MS)patients. Methods The 74 cases with MS and 30 health controls (control group) were enrolled. Mini-mental state examination (MMSE), montreal cognitive assessment (MoCA), digit-symbol test (DST), auditory verbal memory test (AVMT), trail making test(TMT), sunderland clock drawing test (CDT) and verbal fluency test (VFT) were applied to evaluate cognitive function. Based on the cognitive assessment, MS patients were divided into two groups: 39 cases with MCI (MS+MCI group) and 35 cases without cognitive impairment (MS group). The levels of MMP-9, ICAM-1 and adiponectin were measured by ELISA. Biochemical variables were measured by routine methods in all subjects. Results (1)MS+MCI group showed the higher levels of BMI, SBP, FBG and MMP-9 (all P＜0.05) and lower level of adiponectin (P＜0.05) than did the MS group. And MS group had higher levels of MMP-9 and ICAM-1 (P＜0.01) and lower adiponectin level (P＜0.01) than did the control group. (2)Spearman's correlation analysis showed that the serum levels of MMP-9 (r=-0.794, P＜0.001) and ICAM-l (r=-0.501, P＜0.001) were negatively correlated with adiponectin. However, MMP-9 was positively correlated with ICAM-1 (r=0.481, P=0.006). (3)Multiple linear regression analysis indicated that there was linear relationship of MoCA with MMP-9 (β=-3.438, P=0.0019), adiponectin (β=1.337, P=0.006), SBP (β=-0.058, P=0.003) and FBG (β=-0.227, P=0.049). (4)Stepwise logistic analysis showed that both high MMP-9 (OR=1.007) and low adiponectin (OR=0.359) were risk factors for the decline of cognitive function. Conclusions Elderly patients with MS may show deterioration in memory, calculation and visuospatial perception. Elevated inflammatory factors might contribute, in combination with abnormal metabolism, to MCI. MMP-9 might contribute to neuronal degeneration. However, adiponectin could strongly counteract the risk factors for cognitive impairment.

Objective To investigate the effects and safety of sequential treatments with methotrexate and mifepristone for ectopic pregnancy with fetal cardiac activity.Methods 4 cases of ectopic pregnancy with fetal car- diac activity in our hospital were given by sequential therapy with methotrexate and mifepristone.Serum?-HCG,liv- er function and renal function,blood routine and gastrointestinal response were observed.Results 4 cases of ectopic pregnancy with fetal cardiac activity with 1～4 periods of sequential treatments were cured.Except light gastroin- testinal response,and one had slight rise of serum ALT level and AST level,no one had rnyelosuppression and heavy hepatic injury.Conclusion The sequential therapy with methotrexate and mifepristone is an effective and safe method for the treatment to ectopic pregnancy with fetal cardiac activity.

OBJECTIVETo investigate the clinicopathological features of nonalcoholic steatohepatitis (NASH) and elucidate its diagnosis and differential diagnosis.

METHODSLiver biopsy tissues and clinical data of 32 patients with NASH were collected and the clinicopathological findings by HE and Masson staining were evaluated for NASH grading.

RESULTSBallooning degeneration of the liver cells and fibrosis around hepatic sinusoid was scarce in mild NASH cases and increased in moderate to severe cases. Steatotic and inflammatory cells in the liver lobes decrease in liver cirrhosis related to seatohepatitis.

CONCLUSIONBallooning degeneration of the liver cells and fibrosis around the hepatic sinusoid have important value in differential diagnosis of mild from moderate to severe NASH, and correct histological grading benefits clinical intervention and prognostic evaluation of NASH.

Adult ; Biopsy, Needle ; Diagnosis, Differential ; Fatty Liver ; diagnosis ; pathology ; Female ; Humans ; Image Interpretation, Computer-Assisted ; Liver ; pathology ; Male ; Middle Aged ; Prognosis

OBJECTIVETo investigate the feasibility and reliability on the quantitative evaluation of Colles' fracture by multislice CT (MSCT) multiplanner reconstruction (MPR).

METHODSA total of 36 patients with Colles' fracture from July 2011 to July 2014 were investigated in this study. There were 11 males and 25 females with a mean age of (42.5 ± 5.4) years old (ranged 35 to 72 years). All the patients underwent anteroposterior and lateral X-ray films and MSCT scans on wrist joints within 2 days after trauma. Images were sent to the workstation through picture archiving and conserving system (PACS). One associate chief physician independently and respectively measured the dorsal intercalation depth of distal fracture block, palmar angle and dislocation degree of wrist articular surface collapse on anteroposterior and lateral X-ray film and MSCT-MPR. The time interval between the two measurements was 2 weeks. All the data between the first and second measurement on X-ray and MPR and the mean value between the X-ray and MPR was examined with paired t-test. The pearson analyzed their correlation.

RESULTSAmong the 35 cases, 35 cases of palmar angle, 21 cases of intercalation depth and 16 cases of dislocation of wrist articular surface collapse could be measured on both X-ray and MPR. For the above parameters, the first measurement results were (12.5 ± 3.6)°, (4.5 ± 2.1) mm, (3.7 ± 1.6) mm and the second measurement results were (4.8 ± 2.2)°, (6.4 ± 3.6) mm, (2.5 ± 1.2) mm on X-ray films respectively. The first measurement results on MPR were (14.5 ± 5.3)°, (4.2 ± 1.2) mm, (5.7 ± 2.3) mm, and the results were (13.2 ± 2.6)°, (4.7 ± 2.2) mm, (4.6 ± 2.1) mm for the second measurement respectively. The three parameters between the first and second measurement on plain film had statistical difference and low correlation (r = 0.681, 0.640, 0.345, P < 0.05). The data between the first and second measurement on MPR showed that the dislocation degree of wrist articular surface collapse had statistical difference (P < 0.05) and no statistical significance was found for the other two parameters (P > 0.05), with the moderate correlation (r = 0.954, 0.854, 0.642). The three parameters had low or moderate correlation with each other on X-ray (r = 0.454, 0.532, 0.378, P < 0.05), compared with the mean value on MPR.

CONCLUSIONUsing MSCT MPR images may carry on the multiple parameter measurement of Colles fracture, to make quantitative evaluation, and repeated measurement is better reliability.

Adult ; Aged ; Colles' Fracture ; diagnostic imaging ; Feasibility Studies ; Female ; Humans ; Image Processing, Computer-Assisted ; Male ; Middle Aged ; Multidetector Computed Tomography ; methods

Adult ; Asian Continental Ancestry Group ; Elasticity ; Elasticity Imaging Techniques ; Humans ; Liver ; physiology ; Male ; Middle Aged

OBJECTIVETo investigate the value of the noninvasive examinations for localization of insulinoma.

METHODSThe clinical materials of 88 cases of insulinoma treated in Peking Union Medical College Hospital between January 2005 and November 2008 were analyzed retrospectively. There were 40 males and 48 females aged from 15 to 74 years old (averaged, 46.5 years old).

RESULTSThe positive rates for localization were 19.3% (17/88), 52.4% (11/21), 95.5% (64/67), 1/6, 30.0% (6/20), 83.9% (26/31), 8/8 and 5/5 respectively in transabdominal ultrasound, enhanced CT, multislice spiral CT pancreatic perfusion, MRI, somatostatin receptor scintigraphy, endoscopic ultrasound, laparoscopic ultrasound and intraoperative ultrasound. Thirty-one multiple tumors in 8 patients were resected. The positive rates of locating the multiple insulinomas of multislice spiral CT pancreatic perfusion and Intraoperative Ultrasound were 48.4% (15/31) and 100% (14/14) respectively.

CONCLUSIONSThe locating diagnosis of insulinoma has came to noninvasive examination era. Multislice spiral CT pancreatic perfusion is the first choice for localization. Intraoperative ultrasound might play an important role in locating tumors for patients with multiple insulinomas.

Adolescent ; Adult ; Aged ; Female ; Humans ; Insulinoma ; diagnosis ; Male ; Middle Aged ; Pancreatic Neoplasms ; diagnosis ; Retrospective Studies ; Young Adult

Adult ; Female ; Hemangioma ; surgery ; Humans ; Laparoscopy ; methods ; Male ; Middle Aged ; Spleen ; surgery ; Splenectomy ; methods ; Splenic Neoplasms ; surgery

OBJECTIVETo establish a determination method of astragulin in Thesium chinese.

METHODRP-HPLC analytical method was established using a Polaris C18 column and acetonitrile-water (23:77) as the mobile phase, with a flow rate of 10 mL x min(-1), detected at 346 nm. The method of sample is refluxing exation by 50% alcohol for 2 times.

RESULTThe content of astragulin was from 0. 120% to 0. 155%, in different groups of T. chinese collected from the same location.

CONCLUSIONThe method was validated to show convenient and reliable.

Chromatography, High Pressure Liquid ; methods ; Flavonoids ; analysis ; Glucosides ; analysis ; Plants, Medicinal ; chemistry ; Quality Control ; Reproducibility of Results ; Santalaceae ; chemistry

BACKGROUNDHelical tomotherapy (HT) is a new image-guided intensity-modulated radiation therapy (IMRT) technique. It is reported that HT plan for non-small-cell lung cancer (NSCLC) can give better dose uniformity, dose gradients, and protection for the lung than IMRT plan. We compared the dosimetric characteristics of HT for NSCLC with those of conventional IMRT to observe the superiority of HT.

METHODSThere was a comparative case series comprising 10 patients with NSCLC. Computed tomographic (CT) images of delineated targets were transferred to the PrecisePlan planning system (IMRT) and Tomo planning system (HT). The prescription doses were 70 Gy/33F for the gross tumor volume (GTV) and the visible lymph nodes (GTVnd), and 60 Gy/33F for the clinical target volume (CTV) and the clinical target volume of the visible lymph nodes (CTVnd). The dose restrictions for organs at risk were as follows: the maximum dose to spinal cord ≤ 45 Gy, V20 to the total lungs < 30%, V50 to the heart < 50%, and V55 to the esophagus < 50%. Both plans were evaluated by means of the dose coverage of the targets, dose-volume histograms (DVHs), and other dosimetric indices.

RESULTSThe dose coverage, conformity, and homogeneity of the targets' volumes were found to be satisfactory in both plans, but the homogeneity of the HT plan was better than that of IMRT. The high-dose radiation volume (V20-V30) to the lung and the mean lung dose (MLD) decreased (P < 0.05), but the low-dose radiation volume (V5-V10) increased slightly in the HT plan (P > 0.05). The maximum doses to the spinal cord, heart, esophagus and trachea in the HT plan were lower than those in the IMRT plan, but the differences were not statistically significant.

CONCLUSIONSThe HT plan provids better dose uniformity, dose gradients, and protection for the organs at risk. It can reduce the high-dose radiation volume for lung and the MLD, but may deliver a larger lung volume of low-dose radiation.

Adult ; Aged ; Aged, 80 and over ; Carcinoma, Non-Small-Cell Lung ; diagnostic imaging ; radiotherapy ; Humans ; Male ; Middle Aged ; Radiography ; Radiotherapy Dosage ; Radiotherapy Planning, Computer-Assisted ; methods ; Radiotherapy, Intensity-Modulated ; methods ; Treatment Outcome