Objective To explore the normal number of lumbar lateral recess and the relationship between the CT pathology and clinical manifestation in the patients who suffered from lumbar lateral recess stenosis. Methods Lumbar specimen of 15 normal adult corpse and 20 healthy volunteers were observed, and the anterior and posterior(AP) sagittal diameters of normal lumber lateral recess were measured. The CT pathology and clinical manifestation of 174 patients who suffered from lumbar lateral recess stenosis were analysed. Results At the levels of L1 and L2, the lateral recess was found in about 34% normal persons.At the levels of L3 to S1, the lateral recess was found in all healthy persons.All patients who suffered from lumbar lateral recess stenosis had narrow AP sagittal diameters of lumbar lateral recess (

Objective To explore the effects of different methods of antigen retrieval on the results of immunohistochemical staining of nuclear receptors. Methods Antigens were retrieved by using microwave oven, autoclave, enzyme and autoclave plus enzyme, respectively, in liver sections from DA.1U rats, followed by immunohistochemical staining. Results After antigen retrieval with autoclave, the positive staining intensity of nuclear receptors LXR-α, LXR-β, PPAR-γ and FXR in the liver sections from DA.1U rats was enhanced obviously, and the location of nuclear receptors was better by using this method than the others. Conclusion In the immunohistochemical staining of nuclear receptors, using autoclave to retrieve antigens is the best method.

Objective To observe the therapeutic effectiveness of valsartan in combination with amlodipine in therapy of essential hypertension and the consequent changes in red cell distribution width (RDW).Methods One hundred and ten patients of hypertension were selected,then randomly divided into treatment group (56 cases) and control group (54 cases).Valsartan and amlodipine were given to the treatment group,while the control group taking amlodipine only.Bp and RBC were carried out before and after treatment.Results Antihypertensive effect of the treatment group were statistically significant compared with the control group (P ＜ 0.05).The consequent RBC,Hct and Hb,RDW level of treatment group decreased dramatically compared with the control group (P ＜ 0.01 or ＜ 0.05).Conclusions Valsartan in combination with amlodipine in ther apy of hypertension is a prospective combination which achieves superior blood pressure control,low level of RDW and blood viscosity,as a result reducing the incidence of cardiovascular events.

Objective To evaluate the suitability of preoperative magnetic resonance imaging (MRI) positivity as a pre?dictor of biochemical recurrence after radical prostatectomy (RP). Methods Data of 115 diagnosed prostate cancer patients with RP from 2006 to 2013 were collected retrospectively. According to MRI results, patients were divided into MRI positive group (n=87) and MRI negative group (n=28). The preoperative clinical data were compared between two groups. Biochemi?cal recurrence was defined as increase or persistence of serum prostate specific antigen (PSA) levels>0.2μg/L after surgery. Cox proportional hazard regression model was used to analyze the risk factors associated with biochemical recurrence. Re?sults The survival time was shorter in MRI positive group than that of MRI negative group. The preoperative PSA level was higher in MRI positive group than that of MRI negative group (P<0.05). There was no significant difference in the age of pa?tients between two groups. In MRI positive group, the proportion of preoperative PSA>20μg/L , the proportion of patients at clinical stage T3, the proportion of patients with pathological Gleason score≥8, the proportion of patients with seminal vesi?cle invasion (SVI) and the proportion of patients with endocrine therapy were higher than those of negative group ( P<0.05). The univariate analysis showed that preoperative MRI positivity, PSA level, biopsy Gleason score, clinical stage, pathological Gleason score, SVI level and lymph node invasion (LNM) were associated with biochemical recurrence (P<0.05).However, the multivariate analysis showed that only preoperative MRI positivity, biopsy Gleason score and clinical stage were indepen?dent prognostic factors (P<0.05). Conclusion Preoperative MRI positivity can predict biochemical recurrence after RP successfully, and improve the prognosis of patients.

Aim To investigate the direct effects and mechanism of carvedilol on HERG channel stably expressing in human embryonic kidney-293(HEK293) cells.Methods Whole-cell patch-clamp technique was used to record HERG current and kinetic curves in single cells.Western blot methods were used to investigate the expression of HERG channel in different concentration of carvedilol.Result Carvedilol decreased HERG current in a concentration-dependent manner with an IC50 539.6 nmol?L-1,Hillslope-0.64.The time constants of onset of inactivation and deactivation were accelerated.Other kinetcs(activation,inactivation,recovery from inactivation)had no significant changes.Based on western result,carvedilol had no effect on the generation and trafficking of HERG protein.Conclusion Carvedilol inhibits the transfected HERG channels by influencing the open state which is the probable anti-arrhythmic mechanism.There is no relationship between carvedilol and HERG channel expression.

OBJECTIVE: To analyze the clinical characters, surgical treatments and prognosis of differentiated thyroid carcinoma (DTC) with laryngeal or tracheal invasion. METHOD: Forty-six cases including 33 papillary and 13 follicular were retrospectively reviewed. Thirty-four cases with tracheal invasion received conservative resection (17), window resection (11) and sleeve resection (6). One case with subglottic invasion was performed subglottic partial laryngectomy. Eleven cases with trachea-laryngeal invasion received total laryngectomy(4), 3 shave technique and 4 preservative laryngectomy. RESULT Complications included infections and hypocalcaemia, 15 patients got permanent fistula. 5-year survival rate in cases of tracheal shave resection was 88.2%, while 63.6% in those of window resection and 83.3% in those of sleeve resection. Survival rate within 5 years of patients received preservative laryngectomy was 62. 5%. Conclusion: With meticulous preoperative examination and positive surgical treatment, both survival rate and quality of life could be improved in patients of DTC with laryngeal or tracheal invasion.
Adenocarcinoma ; Humans ; Laryngectomy ; Larynx ; pathology ; Larynx, Artificial ; Neoplasm Invasiveness ; Prognosis ; Quality of Life ; Retrospective Studies ; Survival Rate ; Thyroid Neoplasms ; pathology ; surgery ; Trachea ; pathology

ObjectiveTo study the value of the exfoliative cytology of prostatic fluid obtained from patients with elevated PSA in prostate cancer diagnosis.MethodsProstatic fluid was obtained from 130 patients with elevated PSA before prostate biopsy and then the Wright's stain and cytological class were done.Each cytological class and patient's age,PSA,total prostate volume,prostatic fluid volume and the number of leukocyte in the prostatic fluid were recorded.The relationship of leukocyte number and patient's age,PSA and prostate volume was analyzed by Spearman correlation test.ResultsProstate biopsy pathology results showed that there were 77 (59.2％) cancer cases and 53 (40.8％) non-cancer cases.Patient numbers in cytological class 1 to 5 were 28 (21.5％),32 (24.6％),22 (16.9％),36 (27.7％),12(9.2％),respectively.The prostate fluid cytology had a specificity of 100％ and high sensitivity of 62.5％(10/16) in patients with PSA≥20 μg/L.PSA value had significant difference between class 1,2,3,4and 5.Significant correlation was found among the prostatic fluid volume,total leukocyte number and prostate volume.Prostate volume,leukycyte density and total leukycyte number was significant higher in noncancer patients than in prostate cancer patients.ConclusionsThe exfoliative cytology of prostatic fluid is a valuable method in detecting prostate cancer,particularly in patients with high PSA levels.It has the advantages of non-invasion and less injury than prostate biopsy.There is a relationship between elevated PSA value and high leukocyte numbers.

OBJECTIVETo explore the prevalence of syphilis and HSV-2 among female sex workers (FSWs) who use new types of drugs in Jiaozhou city.

METHODSThrough convenient sampling, an anonymous questionnaire survey was conducted among female sex workers to collect demographic characteristics, new-type drugs abusing characteristics and related sexual behaviors from October to December, 2013. Blood specimens were drawn for serological tests of syphilis antibody and HSV-2 antibody. Urine specimens of the subjects surveyed were collected to test for methamphetamine. Differences in demographic characteristics, new-type drug abusing characteristics, and sexual behaviours between drug-abusing FSWs and non-drug-abusing FSWs were compared by t-test and χ(2)-test.

RESULTSA total of 460 FSWs were recruited in this study, and 105 FSWs admitted their drug abuse history. Among the 341 urine specimens confirmed to be methamphetamine positive, there were 3 FSWs claimed that they never abuse new-type drugs. The rate of new-type drug abuse was 23.5% (108/460). A total of 71.4% (75/105) of the new drug-abusing FSWs started using drugs under 25 years old. The main reasons for drug abuse were clients request (24, 22.9%), making more money (23, 21.9%) and companion temptations (22, 21.0%). Totally, 41.9% of them (44/105) took drugs with 4-5 persons, 32.4% (34/105) had sex with 2-3 men after taking drugs, and 60.2% of new-type drug-abusing FSWs (65/108) used condoms in the latest commercial intercourse, while only 7.4% FSWs (8/108) used condoms every time during their commercial sex activities in the recent month. Compared with FSWs having no drug abuse behavior, drug-abusing FSWs had higher single proportion (73.2% (79/108) vs 63.6% (224/352), χ(2) = 8.64, P < 0.05), lower condom use rate in the recent month (7.4% (8/108) vs 22.7% (80/352), χ(2) = 12.53, P < 0.01) and higher pregnancy rate in the recent 6 months (24.1% (26/108) vs 8.8% (31/352), χ(2) = 17.74, P < 0.01) and most of them come from the middle and high-level entertainmens (78.7% (85/108) vs 65.1% (229/352), χ(2) = 13.09, P < 0.01). Among the new-type drug-abusing FSWs, the prevalence rates of syphilis and HSV-2 were 12.0% (13/108) and 55.6% (60/108) , respectively. A total of 33 FSWs claimed that they were diagnosed with STDs in the recent year (30.6%) . The rates of syphilis(12.0% (13/108) vs 4.0% (14/352), χ(2) = 9.72, P < 0.01), HSV-2(55.6% (60/108) vs 39.2% (138/352), χ(2) = 9.01, P < 0.01) and diagnosed STDs (30.6% (33/108) vs 17.9% (63/352), χ(2) = 8.02, P < 0.01) among the drug-abusing FSWs were significantly higher than those of non-drug-abusing FSWs.

CONCLUSIONThere is a higher proportion of new-type drug abuse among the FSWs in Jiaozhou, with significantly higher prevalence rates of syphilis and HSV-2 infection, compared with non-new types of drug abusing FSWs. Prevalent risk sexual behaviors and ignorance of new-types drugs' harm were seen among them.

China ; epidemiology ; Condoms ; Designer Drugs ; Female ; Herpes Genitalis ; epidemiology ; Herpesvirus 2, Human ; Humans ; Methamphetamine ; Pregnancy ; Prevalence ; Risk Factors ; Risk-Taking ; Sex Work ; Sex Workers ; statistics & numerical data ; Sexual Behavior ; drug effects ; statistics & numerical data ; Sexual Partners ; Substance-Related Disorders ; Syphilis ; epidemiology

Objective: To investigate cardiovascular disease (CVD) prevention status among residents with intra-urban migration in Central China, so as to provide insights into targeted prevention and control of CVD. Methods: Basic data of residents aged 35 to 75 years who participated in Early Screening and Comprehensive Intervention Project for CVD high-risk populations in Central China from September 2015 to August 2020 were collected. According to birth place, type of registered residence and current residence, residents were divided into four groups: local residents in old urban area, local residents in new urban area, other urban migrants and other rural migrants. The status of CVD primary and secondary prevention, were analysed by using a robust Poisson regression model. Results: A total of 76 513 residents were recruited, including 29 420 males (38.45%) and 47 093 females (61.55%), and had a mean age of (56.36±9.84) years. There were 45 087 (58.93%) local residents in old urban area, 23 868 (31.19%) local residents in new urban area, 5 668 (7.41%) other urban migrants and 1 890 (2.47%) other rural migrants. After adjusting for variables such as age, gender and educational level, the results of robust Poisson regression analysis showed that compared with local residents in old urban area, local residents in new urban area had lower compliance rates of non- or moderate-drinking (RR=0.987, 95%CI: 0.975-1.000) and healthy diet (RR=0.535, 95%CI: 0.365-0.782), lower proportion of using aspirin as primary prevention in CVD high-risk population (RR=0.616, 95%CI: 0.511-0.741), lower awareness (RR=0.873, 95%CI: 0.782-0.974) and control rates (RR=0.730, 95%CI: 0.627-0.849) of hypertension; other urban migrants had higher compliance rate of non-smoking (RR=1.045, 95%CI: 1.017-1.075); other rural migrants had lower proportion of using aspirin as primary prevention in CVD high-risk population (RR=0.826, 95%CI: 0.707-0.966). Conclusion The CVD primaryprevention among local residents in new urban area is relatively poor among four groups of residents in Central China, and key interventions are needed.

Due to the continuous improvement on HIV surveillance system and the diversity of data sources, various methodologies on estimation and projection of HIV/AIDS present greater contribution in exploring the natural history and related burden of HIV in the future. Different kinds of methods have been developed by professionals, both at home and abroad. This paper reviews the rationale, requirement, application, strength and limitation of the related methodologies that have been widely used in this field, to provide reference and evidence for the application and selection of related methodologies in the future.