Objective To study MR imaging manifestations of the mesorectum and mesorectal fascia. Methods 100 cases were divided into five groups according to the age. All MR images were retrospectively observed and analyzed by two radiologists.The observing contents included: ①exhibition of the mesorectal fascia, ②the signal intensity of the mesorectum and the pelvic fat and ③the thickness ratio of the mesorectum and the subcutaneous fat in different ages. All data were dealed with SPSS 10.0 software. Results The showing rate of the anterior, posterior, left and right mesorectal fascia respectively were 77, 100, 91 and 93 by MR imaging. The signal intensity of the mesorectum(550.8843) was significantly higher than that(469.8693) of pelvic fat in all five groups(P﹤0.05) and the signal difference between the mesorectum and the pelvic fat could be detected by naked eye. The thickness of the mesorectum and the subcutaneous fat had no association with ages.Conclusion MRI can display the mesorectum and mesorectal fascia clearly. The signal intensity of the mesorectum is significantly higher than that of pelvic fat in five groups. The thickness of the mesorectum and the subcutaneous fat have no association with ages.

AIM: To examine the effects of monocyte-endothelium interaction on the expression of CD36 in monocytes and observe the functions of cytokines in this process. METHODS: The monocytes and endothelial cells were cultured alone or cocultured together to form different cell culture conditions. The level of M-CSF in culture medium was determined by enzyme linked immune sandwich assay(ELISA) technique, and the expression of CD36 in monocytes was determined by flow cytometry. RESULTS: The expression of CD36 in monocytes was low in monocytes cultured alone but increased significantly when monocytes and endothelial cells were cocultured(P

10.3969/j.issn.2095-4344.2013.23.001

Objective To explore the early-term efficacy of the reconstruction ot acetabular bone loss with porous tantalum acetabular components in total hip arthroplasty.Methods Twenty-one patients (21 hips) were included in this study,which had an acetabular replacement with tantalum acetabular components from August 2009 to April 2012.There were 6 males and 15 females,with the mean age of 55.7±16.2 years (range from 24 years to 78 years).The primary total hip arthroplasty in 5 cases,the revision in 16 cases.The acetabular bone defects were classified as Paprosky classification,which included,type Ⅰ in 9 cases,type Ⅱain 4,type Ⅱb in 5,type Ⅱcin 1,type Ⅲa in 1 and type Ⅲb in 1 case.Results The mean follow-up time was 20.1 months (range,6-40 months).In Paprosky Ⅰ,the Harris hip score was 87.2±7.4 postoperatively,which was significant higher than the preoperative score 41.1±6.3.In Paprosky Ⅱ,the Harris hip postoperative score (79.8±11.8) was significant higher than the preoperative score (38.4±12.5).In Paprosky Ⅲ,the Harris hip postoperative score (79) was significant higher than the preoperative score (24).21 Tantalum components were well fixed by the radiograph imaging.No cases suffered aseptic loosening and migration.Bone ingrowths was obviously performed in 21 hips.But 2 hips had a radiolucent line,1 case occurred in zone 3 and the line was filled 4 months later,the other case still existed at last follow-up without any more widen.No infections or mechanical failures.The survivorship of the tantalum acetabular components was 100％.Conclusion Our short-term results suggest this implants may enhance biological fixation in acetabular defect cases.Porous tantalum cup appears to be an ideal material to facilitate biologic ingrowths in these cases.Long-term follow-up still needs to be confirmed.

Objective To observe the efficacy and safety of recombinant human endostatin injection (en-dostar) combined with GP(gemcitabine plus cisplatin)regimen in patients with advanced non- small cell lung cancer (NSCLC). Methods Thirty seven histologically confirmed advanced NSCLC patients were enrolled in the group. The patients were administered with endostar 15 mg from day 1 to 14,gemcitabine 1 000 mg/m2 day 1 and 8,cisplatin 80 mg/m2 on days devided into 1 - 3, repeated 21 days. Each patient should complete two cycles. Results 37 patients were valuable for response. One patient achieved complete response(CR), 15 partial response(PR), 14 stable disease (SD) ,and 7 were found to have disease progression(PD). The total response rate was 43.2% ,median TIP was 5.2 months. The main toxicities was leukopenia. There was no treatment-related death in this series. Conclusion En-dostar combined GP regimen was effective and safe in treatment of advanced NSCLC.

Objective To examine the effects of intravenous thrombolysis with Tissue-type plasminogen activator (rt-PA) combined with mild hypothermia therapy on patients with acute cerebral infarction and further investigate under?lying mechanism for the treatment of cerebral infarction. Methods Sixty cases of cerebral infarction patients were random?ly divided into three groups with 20 patients in each group:①The control group was given rt-PA intravenous thromboly?sis;②The treatment group 1:intravenous thrombolytic therapy combined with local mild hypothermia treatment for 12 h;③The treatment group 2:intravenous thrombolytic therapy and local mild hypothermia in the treatment of 24 h. We col?lected NIHSS score before and after thrombolytic therapy, patient monitoring (ICP) changes during thrombolytic therapy, March (MRS) score and complications during follow-up after thrombolysis, The serum levels of SOD and MDA were as? sessed before and after thrombolytic therapy. Results NIHSS score was lower in both treatment group 1 and treatment group 2 than in the control group (P<0.05) at 72 h, 7 d, 14 d after thrombolysis. MRS was lower in both treatment group 1 and treatment group 2 than in the control group (P<0.05) at 3 months after thrombolytic therapy. MRS were lower in treat?ment group 2 than in the treatment group 1 (P<0.05). ICP in treatment group 1 and the concentration of MDA in treat?ment group 2 were lower, compared with control group (P<0.05) at 24 h, 72 h and 7 d after thrombolysis. ICP was lower in treatment group 2 than treatment group 1 at 7d after thrombolysis. The concentration of SOD was higher in treatment groups than in control group (P<0.05) at 24, 72 h and 7d after thrombolysis. ICP and MDA concentration were lower in treatment group 2 than in treatment group 1(P<0.05) at 72h and 7d after thrombolysis. The concentration of SOD was higher in treatment group 2 than in the treatment group 1 at 7 d after thrombolysis (P<0.05). There was no significant dif?ference in adverse events and mortality among groups (P>0.05). Conclusion Rt-PA intravenous thrombolysis combined with mild hypothermia treatment can improve the prognosis of patients with cerebral infarction without increasing the inci?dence of adverse reactions. In addition, thrombolysis combined with mild hypothermia 24 h has better effect than with mild hypothermia 12 h. The beneficial effects may be accomplished by reducing oxidative stress reaction.

ObjectiveTo evaluate central nervous system function of patients with coronary cardiac diease by short latency somatosensory evoked potentials (SSEP).MethodsThe cerebral and spinal somatosensory evoked potentials were recorded by stimulating median nerve in 43 patients with coronary cardiac disease but without apparent nervous symptoms and 14 healthy control subjects.ResultsThe lactency periods and central conductive time of N13, N20 and P25 wave were significantly prolonged in patients with myocardial infarction (MI) or angina pectoris (AP) when compared with normal controls (P<0.05～0.001). The lactency periods and central conductive time of N20 and P25 wave recorded in MI patients were longer than those recorded in AP patients (P<0.01～0.001).ConclusionThe subclinical nervous damages in the central somatosensory pathway from spinal cord to cerebral cortex is present in patients with coronary cardiac disease especially myocardial infarction.

Objective To observe the changes of cerebral inflammation-related markers in brain of a transgenic mouse model of Alzheimer's disease (AD) ,and to determine the causative factor to the development of cerebral inflammation in AD. Methods 3- and 12-month-old β-amyloid protein precursor ( APP)/presenilin (PSI) transgenic mice and age-matched wild-type mice (WT) were used in the study. The changes of amyloid plaques, inflammatory factors ( interleukin 1β ( IL-1β ); interleukin 6( IL-6 ); tumor necrosis factor α (TNFα) ;prostaglandin E2 (PGE2)) in the brains among these mice were measured by immunohistochemistry and ELISA. Results Immunohistochemical analysis revealed that no amyloid plaques and activated astrocytes as well as microglia were observed in the 3-month-old APP/PS1 mice. There were no significant differences in the levels of inflammatory factors (IL-1β, IL-6 ,TNFα,and PGE2) between the 3-month-old APP/PS1 and WT mice ( Ps ＞ 0. 05 ). However, abundant amyloid plaques accompanied by a remarkable increase of activated astrocytes and microglia were found in the brain of the 12-month-old APP/PS1 mice. The levels of inflammatory factors (IL-1β,IL-6,TNFα, and PGE2 ) were significantly increased in the 12-month-old APP/PS1 mice ([56. 02 ±9. 04] ng/g, [8. 66 ±0.83] ng/g, [97.48 ±26.58] ng/g, [72. 18 ±21.01] ng/g) than in the WT mice ([29. 18 ± 6. 03] ng/g, [7. 73 ± 0. 74] ng/g, [61.98 ±11.11] ng/g, [37. 23 ± 10. 96] ng/g) and the 3-month-old APP/PS1 mice ( [30. 05 ± 3.53] ng/g, [7.43 ± 1.17] ng/g, [59.34 ± 10. 07] ng/g, [42. 56 ±5.93] ng/g) (P＜0.05,or P＜0.01,respectively). Conclusion This study demonstrates that the APP/PS1mice did not show cerebral inflammation before the appearance of amyloid plaques, and exhibited remarkable inflammation after amyloid plaque deposition. These findings suggest that the induction of cerebral inflammation is tightly associated with amyloid plaque formation, and deposition of amyloid-beta protein (Aβ) may be the direct causative factor to the development of cerebral inflammation in AD.

This study is to analyze and identify the water soluble components of water buffalo horn (Bubali Cornu, WBH), and also establish a method for investigating these components. Shotgun proteomic analysis identified proteins in WBH aqueous extraction: keratin, collagen, desmoglein, etc. Ultrafiltration and LC-MS/MS were used to separate and identify the peptides in WBH aqueous extract, as a result, identified peptides were mainly derived from nonspecific degradation products of keratin and collagen, which including C-terminal peptides and non C-terminal peptides. Hypoxanthine, uridine, guanosine, and adenosine were identified by comparing with the standards. The strategy in present study could be used in analyzing water soluble components of animal horn derived TCM. It provides a reference for investigation of the material basis of animal horn derived TCM.
Animals ; Buffaloes ; Chromatography, Liquid ; Guanosine ; Horns ; chemistry ; Hypoxanthine ; Mass Spectrometry ; Medicine, Chinese Traditional ; Peptides ; Proteomics ; Tandem Mass Spectrometry ; Uridine

Objective To evaluate fluid responsiveness by stroke volume variation (SVV) in mechanically ventilated patients with refractory septic shock.Methods Forty-two refractory septic shock patients were enrolled in the study.According to the responsiveness of fluid loading, the patients were divided into responsive group and non-responsive group.The SVV values of two groups were retrospectively analyzed.The receiver operating characteristic curve was drafted to determine the cut-off value of SVV for predicting fluid responsiveness.Results Among the 42 refractory septic shock patients, 24 were found responsive to fluid loading, 18 were not;before the fluid loading, central venous pressure, heart rate, mean arterial pressure and global end-diastolic volume index in the both groups showed no significant differences whereas the SVV in the responsive group was much higher than that in the nonresponsive group (P =0.006).Using SVV ≥ 12% as the threshold to predict fluid responsiveness, the sensitivity was 77%,specificity was 85%.Conclusion SVV can accurately predict fluid responsiveness in refractory septic shock patients.