Animals ; Conditioning (Psychology) ; drug effects ; Extinction, Psychological ; drug effects ; physiology ; Fear ; drug effects ; physiology ; Male ; Mifepristone ; pharmacology ; Rats ; Rats, Sprague-Dawley

Objective To analyze the complication rates in 210 patients undergoing transrectal ultrasound-guided 24-core transperineal prostate biopsy.Methods Clinical data of 210 patients who underwent transrectal ultrasound-guided 24-core transperineal prostate biopsy from 2010 to 2012 were collected.A retrospective analysis of complications after prostate biopsy was conducted.Results The main postoperative complications were hematuria,bloody stool,dysuria,urinary retention,fever (＞38℃),urinary infection,vasovagal syncope,and their complication rates were 43.3 ％ (91/210),10.9％ (23/210),23.3％ (49/210),25.2％ (53/210),14.8％ (31/210),21.9％ (46/210),0.48％ (1/210) respectively.In addition,5 patients (2.5％) were hospitalized due to biopsy related complications.Conclusions Transrectal ultrasound guided 24-core transperineal prostate biopsy is an relatively safe and effective puncture method with common minor complications and less severe complications.Adequate attentions should be paid to its complications.

Objective To investigate the expression of VEGF and VEGFR in non?small cell lung cancer patients with malignant pleural effusion, and analyze the relationship between VEGF and VEGFR and malignant pleural effusion. Methods The VEGF and VEGFR expression were detect?ed using immunohistochemistry in pleural and lung tumors tissues of 30Ⅳstage non?small cell lung cancer patients,and the relationship between VEGF and VEGFR expression and malignant pleural effusion was analyzed. Results The expression of VEGF and VEGFR in pleural tissue of pa?tients with malignant pleural effusion was significantly higher than those without malignant pleural effusion(P<0.05). Conclusion There is a very close correlation between high expression of VEGF and VEGFR and formation of malignant pleural effusion.

Cold Temperature ; adverse effects ; Cold-Shock Response ; Humans ; Myocardial Infarction ; etiology ; physiopathology

Objective To investigate the effect of electroacupuncture or exercise preconditioning on neurological function after focal ce-rebral infarction in rats and the possible mechanism. Methods A total of 24 male Sprague-Dawley rats were randomly divided into model group (n=6), sham group (n=6), exercise preconditioning group (n=6) and electroacupuncture preconditioning group (n=6). The model group and the sham group did not accept any treatment, while the exercise preconditioning group and the electroacupuncture precondition-ing group accepted treadmill training and electroacupuncture for two weeks, respectively. Their middle cerebral arteries were occluded with modified Longa's approach, except the sham group that was ligated the same arteries but did not result in infarction. They were evaluated with Neurologic Severity Scores (NSS) 24 hours after modeling, and the laminin expression in the ischemic area was detected with Western blotting. Results There was no neurological deficit in the sham group. The NSS was lower in both preconditioning groups than in the model group (P<0.05), but was not significant different between preconditioning groups (P>0.05). The expression of laminin was the most in the sham group, and was more in both preconditioning groups than in the model group (P<0.05), but was not significant different between pre-conditioning groups (P>0.05). Conclusion Preconditioning with exercise or electroacupuncture can both reduce the neurological deficits in rats after focal cerebral infarction, which may associate with the protection of laminin from inhibition in early stage.

Objective To observe the effect of acupuncture plus rehabilitation on neurologic deficit and the expression of vascular endothelial growth factor (VEGF) protein in cortex on the infarction side in rats with focal cerebral infarction, and to explore the action mechanism of acupuncture plus rehabilitation in promoting the recovery of impaired function in rats.Method Ninety healthy male Sprague-Dawley (SD) rats were randomized into a model group, an acupuncture group, a rehabilitation group, an acupuncture-rehabilitation group, and a sham operation group, and the five groups were further divided into three subgroups, i.e. 3 d, 7 d, and 14 d subgroups, 6 rats in each subgroup. The modified Zea-Longa method was adopted to prepare the model of middle cerebral artery occlusion (MCAO) on theright side. Rats in the acupuncture group received simulant scalp-points cluster needling; the rehabilitation group was intervened by treadmill exercise; the acupuncture-rehabilitation group was intervened by scalp-points cluster needling plus treadmill exercise; the model group and sham operation group didn't receive any interventions. The modified Neurological Severity Score (mNSS) was adopted to evaluate the rat's neurologic deficit, and Western blotting was used to detect the expression of VEGF protein in cortex on the infarction side.Result Neurologic deficit wasn't found in rats in the sham operation group. After 3-day treatment, the mNSSs in the acupuncture group, rehabilitation group, and acupuncture-rehabilitation group were insignificantly different from the score in the model group (P>0.05), while the differences were statistically significant respectively after 7-day and 14-day treatment (P<0.05). Respectively after 7-day and 14-day treatment, the mNSS of the acupuncture-rehabilitation group was significantly lower than that in the acupuncture group and rehabilitation group (P<0.05); there was no significant difference in comparing the mNSS between the acupuncture group and rehabilitation group (P>0.05). After 3-day treatment, the expression of VEGF protein in each treatment group was insignificantly different from that in the model group (P>0.05), while the expression of VEGF protein in each treatment group was significantly higher than that in the model group respectively after 7-day and 14-day treatment (P<0.05). Respectively after 7-day and 14-day treatment, the expression of VEGF in the acupuncture-rehabilitation group was significantly different from that in the acupuncture group and rehabilitation group (P<0.05); there were no significant differences in comparing the expression of VEGF at each time point between the rehabilitation group and acupuncture group (P>0.05).Conclusion Scalp-points cluster needling and rehabilitation both can improve the neurologic function in rat models of focal cerebral infarction, and enhance the expression of VEGF protein in infarction cortex, and the integration of acupuncture and rehabilitation can achieve a better result; the action mechanism is possibly related to the high expression of VEGF which can better promote the reconstruction and regeneration of the vessels in cerebral infarction area.

Objective:To identify effective biomarkers for glioma patients.Methods:The mRNA expression profiles of 464 glioma patients with complete clinical follow-up information were downloaded from the Chinese Glioma Genome Atlas (CGGA). Weighted gene co-expression network analysis (WGCNA) was used to identify gene modules related to World Health Organization (WHO) grading of glioma, and univariate and multivatiate Cox regression analysis were performed to identify gliomas survival-related genes.Results:In weighted gene co-expression analysis, the module Brown was significantly positively correlated with glioma WHO stage ( r=0.55, P<0.05). In univariate analysis, five genes (TAGLN2, IGFBP2, METTL7B, ARAP3, PLAT) that were most significantly associated with clinical prognosis were selected for multivariate survival analysis, and the prognosis model was established to calculate the risk score. The receiver operating characteristic curve (ROC) confirmed that the risk score had high accuracy in predicting the 1-, 3-, 5-year survival rate of glioma patients. The above survival analysis results were verified in the Cancer Genome Atlas (TCGA) database. Conclusions:We use mRNA expression profiles to establish prognostic markers for gliomas to assess the overall survival of patients with glioma.

ObjectiveTo determine thallium in whole blood by atomic absorption detection method, and to investigate the eliminating effect of hemoperfusion (HP) for thallium in blood.Methods The blood of Beagle dogs which had not exposed to thallium before were obtained for preparation of thallium nitrate (TlNO3)-containing solution in three concentrations according to the conversion formula based on animal weight and volume of blood. HP was performed in the simulated in vivo environment. The content of TlNO3 in blood of the next group was determined on the amount of TlNO3 for the last HP of the former dose group. Thallium quantity in different samples was measured with atomic absorption spectrometer blood samples before and after HP. Finally, the thallium concentration in blood was analyzed statistically.Results Thallium concentrations showed a good linear relationship in the range of 0-200μg/L (r = 0.998 4). The intra-day precision (RSD) was lower than 4.913%, the intra-day recovery rate was 96.2%-111.9%; the inter-day precision (RSD) was lower than 7.502%, the inter-day recovery rate was 89.6%-105.2%. The concentration of thallium in blood was significantly reduced after HP per time in high, middle, and low dose groups [(453.43±27.80) mg/L to (56.09±14.44) mg/L in high dose group,F = 8.820,P = 0.003;(64.51±13.60) mg/L to (3.19±0.23) mg/L in middle dose group,F = 36.312,P = 0.000; (5.40±0.98) mg/L to (0.38±0.25) mg/L in low dose group,F = 46.240,P = 0.000]. The adsorption rate of four times of HP in high, middle and low dose group were (87.63±2.48)%, (95.06±1.54)% and (92.76±4.87)%, respectively, without significant difference (F = 4.231,P = 0.070 ).Conclusions The method for measuring thallium was established, and it shows a very stable, simple, sensitive for determination of thallium. HP can effectively remove thallium from blood. Thallium concentration can be reduced by 90% after four times of HP. HP is also effective even when thallium concentration is not high.

OBJECTIVETo investigate the effect of propofol on brain regions at different sedation levels and the association between changes in brain region activity and loss of consciousness using blood oxygen level-dependent functional magnetic resonance imaging (BOLD-fMRI) and bispectral index (BIS) monitoring.

METHODSForty-eight participants were enrolled at Peking Union Medical College Hospital from October 2011 to March 2012 and randomly assigned to a mild or a deep sedation group using computer- generated random numbers. Preliminary tests were performed a week prior to scanning to determine target effect site concentrations based on BIS and concomitant Observer's Assessment of Alertness/Sedation scores while under propofol. Within one week of the preliminary tests where propofol dose-response was established, BOLD-fMRI was conducted to examine brain activation with the subject awake, and with propofol infusion at the sedation level.

RESULTSMild propofol sedation inhibited left inferior parietal lobe activation. Deep sedation inhibited activation of the left insula, left superior temporal gyrus, and right middle temporal gyrus. Compared with mild sedation, deep propofol sedation inhibited activation of the left thalamus, precentral gyrus, anterior cingulate, and right basal nuclei.

CONCLUSIONMild and deep propofol sedation are associated with inhibition of different brain regions, possibly explaining differences in the respective loss of consciousness processes.

Adult ; Brain ; drug effects ; Consciousness Monitors ; Deep Sedation ; Dose-Response Relationship, Drug ; Humans ; Hypnotics and Sedatives ; pharmacology ; Male ; Propofol ; pharmacology

Objective To explore the effects of acupuncture-rehabilitation therapy on neurological function recovery and extracellular signal-regulated kinase 1/2 (ERK1/2) signaling pathway activation after permanent focal cerebral ischemia in rats. Methods Ninty male Sprague-Dawley rats were divided into five groups, namely sham group, model group, acupuncture group, rehabilitation group and acupunc-ture-rehabilitation group, and 18 in each group. Each group was further divided into 3 days, 7 days and 14 days subgroups (n=6). Their mid-dle cerebral arteries were occluded except those of sham group. The sham and model groups accepted no treatment, while the acupuncture group accepted cluster needling of scalp acupuncture, rehabilitation group accepted treadmill training, and the acupuncture-rehabilitation group accepted both acupuncture and treadmill training. They were assessed with modified Neurologic Severity Score (mNSS) 3, 7 and 14 days after modeling, while the expression of ERK1/2 and p-ERK1/2 were determined with Western blotting. Results The neurologic severi-ty score reduced in all three treatment groups (P<0.05) compared with that of the model group at every time point, and was the least in the acupuncture-rehabilitation group (P<0.05) 7 and 14 days after modeling among the treatment groups. Meanwhile, the expression of p-ERK1/2 increased in all three treatment groups (P<0.05), and was the most in the acupuncture-rehabilitation group (P<0.05), as well as the rate of (p- ERK1/2)/(ERK1/2) (P<0.05). Conclusion Acupuncture- rehabilitation therapy can promote the neurological function recovery, which may be associated with activation of ERK1/2 signaling pathway.