OBJECTIVETo study significance and limitations of the ratio of free to total prostate specific antigen (f/t PSA) in differential diagnosis between prostate cancer and benign prostatehyperplasia (BPH) with total PSA (tPSA) levels between 4 and 10 ng/ml.

METHODSWe analysed retrospectively 180 prostate cancer and BPH patients who were diagnosed and treated in our hospital from October 1998 to October 2002 and had serum tPSA levels between 4 and 10 ng/ml. Of the 180 patients, 36 (20%) were histologically confirmed as prostate cancer and 144 (80%) BPH. The tPSA and free PSA (fPSA) in serum were measured by micropartical enzyme immunoassay. Prostate volume was measured by transabdominal ultrasonography. We chose Student's t-test for comparison between prostate cancer and BPH groups. The correlation between prostate volume and f/t PSA was analyzed using Pearson's correlation coefficient.

RESULTSThe mean values of tPSA and f/t PSA were 6.75 ng/ml and 0.17 in patients with prostate cancer, 6.48 ng/ml and 0.25 in patients with BPH. The mean value of tPSA wasn't significantly different between patients with prostate cancer and BPH (P > 0.05). However, the mean value of f/t PSA of patients with prostate cancer was significantly lower than that of patients with BPH (P < 0.01). Furthermore, there were significant and positive correlation between prostate volume and f/t PSA in both groups with prostate cancer and BPH (prostate cancer group's correlation coefficient (r = 0.50, P < 0.01); BPH group (r = 0.24, P < 0.01). There was significant difference in f/t PSA between prostate cancer and BPH patients with prostate volumes more than 40 cm(3) (P < 0.05), but not between these two groups with prostate volumes more than 40 cm(3) (P > 0.05).

CONCLUSIONThe f/t PSA is significant in differential diagnosis between prostate cancer and BPH with tPSA levels between 4 and 10 ng/ml. But prostate volume has an effect on f/tPSA. The f/tPSA has diagnostic value of differentiation only when the prostate volume is less than 40 cm(3).

Aged ; Aged, 80 and over ; Biomarkers, Tumor ; blood ; Diagnosis, Differential ; Humans ; Kidney ; diagnostic imaging ; Male ; Middle Aged ; Prostate-Specific Antigen ; blood ; Prostatic Hyperplasia ; diagnosis ; diagnostic imaging ; Prostatic Neoplasms ; diagnosis ; diagnostic imaging ; Retrospective Studies ; Sensitivity and Specificity ; Ultrasonography

OBJECTIVETo improve the understanding of acute obstructive anuria at upper urinary tract in order to cope properly with corresponding clinical problems.

METHODSThe clinical problems of acute obstructive anuria at upper urinary tract in 55 patients was summarized and analysed. Anuria, lumbago, edema and progressive increase of blood creatinine and ureal nitrogen were the main bases of diagnosis. B-typed ultrasonography and plain film of abdomen (KUB) were the first choice in examinations. The treatment principles lied in prompt removal of obstruction as well as effective prevention and treatment of infection to protect renal function to maximum extent.

RESULTSForty-three cases (78.2%) recovered normal renal function. Ten cases (18.2%) still had azotemia three months after treatment. Two cases gave up treatment.

CONCLUSIONSThe reason of tumor for anuria should be paid attention to. The first choice in treatments is ureteral intubation by cystoscope. Diuretic should be used cautiously.

Acute Disease ; Adult ; Aged ; Anuria ; etiology ; therapy ; Female ; Humans ; Male ; Middle Aged ; Treatment Outcome ; Urethral Obstruction ; complications ; therapy

AIM To observe the clinical effects and safety of Zibei Zhike Granules (Asteris Radix et Rhizoma,Ardisiae japonicae Herba,Fritiliariae cirrhosae Bulbus,etc.) for acute broncho-bronchitis with remained toxicity lingering lung.METHODS A multi-center,randomized,double-blinded,double-simulation and positive drug parallel controlled trial was adopted.Two hundred and forty cases of patients with the 1 ∶ 1 ratio were assigned to treatment and control group.The treatment group were treated with Zibei Zhike Granules and the control group were treated with Zikebao Tablets (Asteris Radix et Rhizoma,Citri rubrum exocarpium,Platycodi Radix,etc.).The treatment course lasted five days.RESULTS The total effective rate of acute broncho-bronchitis in the treatment group was 73.04％,and 54.78％ in the control group.There was statistical significance between the total effective rate of the two groups (P ＜ 0.01).The total effective rate of traditional Chinese medicine syndrome in the treatment group was 73.91％ and 60.86％ in the control group,and there was statistical significance between the total effective rate of the two groups (P ＜ 0.05).The treatment group showed better clinical effects in improving individual symptoms of cough and spitting sputum.CONCLUSION Zibei Zhike Granules has good clinical effects on acute broncho-bronchitis.

[ Objective] To discuss the characteristics of death among elderly people aged 60 years and above in Shanghai, who were classified into different age groups, and to provide a basis for making public health policy. [ Methods] On the basis of the data covering whole population death registry system in Shanghai, data on the elders aged 60-plus was collected and classified into 3 age groups according to WHO standards for descriptive analysis. [ Results] The crude death rate among the elders aged 60-plus in shanghai in 2014 was 3 001.76/105 ,accounting for 88.37%of the total mortality.The crude death rate of male was higher than that of female in each age group.The main causes of death in 60-74 age-group were cancer and coronary heart disease ( CHD) which had shorter course of disease with worse prognosis. The main causes of death in 75-89 age-group were cardiovascular and cerebrovascular diseases and chronic obstructive pulmonary disease ( COPD) which had longer course.The main causes of death in 90-pluse group included functional degradation and accidental fall, apart from cardiovascular and cerebrovascular diseases and COPD.And 54.35%of the elders aged 60-plus died in hospital, while 34.12%at home,and 6.63%at nursing home.The proportion of death at home was higher in non-central urban area than in central urban area.And the proportion of death in hospital decreased with increasing age. [ Conclusion] The proportion of the elderly death was large in total mortality.As the characteristics of death varied in different age groups, government should adopt different prevention and control measures.Rational allocation of medical and rehabilitation resources, as well as terminal care, need more attention and exploration by all institutions concerned.

Objective To analyze the relationship between socioeconomic position and prevalence of hypertension, diabetes, coronary heart disease, stroke, chronic obstructive pulmonary diseases (COPD) and multi-morbidity among older adults in rural Yunnan Province. Methods A total of 4 833 older adults aged 60 years and over were selected by multi-stage stratified random sampling method in rural Yunnan Province. Information was acquired from questionnaire and health examination. Principal component analysis was used to construct the socioeconomic comprehensive score. Results The prevalence of hypertension, diabetes, stroke, coronary heart disease, COPD and multi-morbidity in target persons was 50.6%, 10.2%, 6.4%, 5.5%, 5.4% and 16.1% respectively. The prevalence of hypertension and diabetes was much higher in female compared with male (both P<0.05), in contrast the prevalence of COPD was much higher in male than female( 2=5.499, P=0.019)The prevalence of hypertension, stroke, coronary heart disease, COPD and multi-morbidity was increased with age(all P<0.05);Minority ethnic were more likely to develop hypertension, coronary heart disease, COPD and multi-morbidity than Han ethnic(all P<0.05). The results of multivariate logistic regression analysis showed that older adults with lower socioeconomic position had higher probability of suffering from hypertension, coronary heart disease, stroke, COPD and multi-morbidity (all P<0.05). Conclusions There are significant socioeconomic differences between socioeconomic position and prevalence of five major chronic diseases and multi-morbidity among older adults in rural Yunnan province. Older adults with low socioeconomic position should be key population for future prevention and control of chronic diseases.

OBJECTIVECervical vertebra semidislocation was one of major pathological aspects of cervical spondylosis, and it was also the target of manipulation to treat cervical spondylosis. The aim of this study was to combine the technology of three dimensional finite element analysis to investigate the method to construct the cervical vertebra semidislocation model.

METHODSA cervical spondylosis patient (male, 28 years old,176 cm tall, weight 69 kg) was randomly chosen, who was diagnosed cervical vertebra semidislocation by dynamic and static palpation and X-ray,and CT scanned from C1 to C7 by 0.75 mm slice thickness. Based on the CT data, the software was used to construct the three dimensional finite element model of cervical vertebra semidislocation (C4-C6).

RESULTSThe model showed the three dimensional changes of vertebra semidislocation clearly. C5 had a three-dimensional abnormal position, which was downward translation for 0.9 mm and clockwise rotation for 4.5 degrees around X-axis. So C5 was diagnosed as hypokinesis-type semidislocation.

CONCLUSIONThe method to construct the three dimensional finite element model of cervical vertebra semidislocation is reliable, which provide a base study to analyse the mechanism of manipulation to treat vertebra semidislocation.

Adult ; Cervical Vertebrae ; Finite Element Analysis ; Humans ; Image Processing, Computer-Assisted ; Internet ; Joint Dislocations ; complications ; diagnostic imaging ; Male ; Models, Anatomic ; Spondylosis ; complications ; Tomography, X-Ray Computed

OBJECTIVETo compare therapeutic effects between moxibustion and infrared therapy for the treatment of knee osteoarthritis.

METHODSFrom January 2007 to June 2008 period, 65 patients with knee osteoarthritis were divided into treatment and control groups randomly uniform random number table generated from SAS statistical software. Among 35 patients in the treatment group, 17 patients were male and 18 patients were female, ranging in age from 45 to 75 years, with an average of (61.2+/-6.4) years; the course of disease ranged from 9 to 43 months, with a mean of (23.6+/-13.8) months; the preoperative Lysholm score ranged from 19 to 28 scores, averaged (24.3+/-3.3) scores. In the control group, there were 30 patients, including 13 males and 17 females, ranging in age from 47 to 79 years, with an average of (62.5+/-9.3) years; the course of disease ranged from 8 to 45 months, with a mean of (24.6+/-16.6) months; the preoperative Lysholm score ranged from 20 to 29 scores, averaged (25.9+/-3.0) scores. The patients in the treatment group were treated with moxibustion, and the patients in control group were treated with infrared therapy. All the patients were followed up for 4 weeks. The Lysholm scores were compared between the two groups.

RESULTSAccording to Lysholm score for clinical efficacy, treatment group got (87.5+/-5.6) scores and the control group were (85.9+/-3.5) scores, the Lysholm score of the treatment group was higher than that of the control group (P<0.05). Among pain score, joint flexion and extension score, joint stability score, and up and down stairs score, the pain and joint stability scores of patients in the treatment group were higher than those of control group (P<0.05).

CONCLUSIONCompared with infrared therapy, moxibustion treatment for knee osteoarthritis can get better joint function, which is effect to alleviate the patient's pain, improve joint stability, improve the efficacy, and is valued to be promoted.

Aged ; Female ; Humans ; Male ; Middle Aged ; Moxibustion ; methods ; Multicenter Studies as Topic ; Osteoarthritis, Knee ; therapy ; Treatment Outcome

OBJECTIVETo study the effect of vertebrae semi-dislocation on the stress distribution in facet joint and interuertebral disc of patients with cervical syndrome using three dimensional finite element model.

METHODSA patient with cervical spondylosis was randomly chosen, who was male, 28 years old, and diagnosed as cervical vertebra semidislocation by dynamic and static palpation and X-ray, and scanned from C(1) to C(7) by 0.75 mm slice thickness of CT. Based on the CT data, the software was used to construct the three dimensional finite element model of cervical vertebra semidislocation (C(4)-C(6)). Based on the model,virtual manipulation was used to correct the vertebra semidislocation by the software, and the stress distribution was analyzed.

RESULTSThe result of finite element analysis showed that the stress distribution of C(5-6) facet joint and intervertebral disc changed after virtual manipulation.

CONCLUSIONThe vertebra semidislocation leads to the abnormal stress distribution of facet joint and intervertebral disc.

Adult ; Cervical Vertebrae ; injuries ; physiopathology ; Finite Element Analysis ; Humans ; Intervertebral Disc ; physiopathology ; Joint Dislocations ; physiopathology ; Male ; Models, Anatomic ; Stress, Physiological ; Zygapophyseal Joint ; physiopathology

Metabolic engineering has become a powerful tool for optimization of industrial fermentation processes. Metabolic engineering usually undergoes three steps: construction of a recombinant strain with improved properties, genetic and biochemical analysis of the strain, and identification of target for further improvement. Metabolic fluxes analysis is an important part of the biochemical analysis. Based on the law of mass conservation and assuming pseudo-steady-state for the intermediates in the metabolic pathways, we have quantitatively analyzed the time course of the flux distribution in Bacillus subtilis and used the data to reveal the nature of the so-called "40 hour" phenomenon in fermentation of guanosine, a key raw material for the synthesis of additives for human consumption and animal feeds. The phenomenon refers to the observation that guanosine production, which proceeds at high rate from 12 hour on, declines around 40 hour while consumption of glucose keeps increasing, leading to the lower yield of the nucleoside. Equations based upon the metabolic network of Bacillus subtilis consisted of EMP pathway, HMP pathway, TCA cycle, oxidative phosphorylation pathway and others reactions of the intermediates, was constructed. The equations were solved by using the quantitative data obtained in this study. The air flow and volume, concentration of oxygen and carbon dioxide in the exit-gas were monitored online; the concentration of biomass, glucose and guanosine was analyzed manually; and the concentration of acetate, citric acid, pyruvate, and 17 amino acids were HPLC quantified. The solutions of the equation were proved to be valid, as the experimental data on oxygen consumption agrees with that of predicted form the equation. The results indicated that at 40h of the fermentation process the flux of HMP pathway, which provides the precursor of the nucleoside, decreased while that of EMP pathway and the pathways that generate amino acids and organic acids increased. The shift correlated with the accumulation of NH4+ in the broth. The assimilation of NH4+ is an energy consuming process and could shift the metabolism to the energy generating EMP pathway. Accordingly, measures were taken to prevent the accumulation of NH4+. The interference indeed stopped the metabolism shift and boosted the guanosine production at 30 g/L, 70% higher than the level reported in literature.
Bacillus subtilis ; metabolism ; Fermentation ; physiology ; Guanosine ; metabolism ; Models, Theoretical ; Quaternary Ammonium Compounds ; metabolism

OBJECTIVETo establish a method for the content determination of protein in Sabin IPV.

METHODSUsing lowry method combined with being precipitated by trichloroacetic acid to determine the content of protein in Sabin IPV. Changing different conditions to optimize the experiment to establish a improved lowry method. And the sample recovery test was also conducted.

RESULTSThe method can exclude the interference of free aminoacid, phenols and some other additives. The calibration curve was in good linearity of protein within the range of 2.5 microg/ml-40 Microg/ml, r = 0.9998. Under the best conditions, the mean recovery was 95.32%, the CV in a batch and between batches were both < 10%.

CONCLUSIONThe method can be used to determine the micro content of protein in vaccines.

Amino Acids ; metabolism ; Calibration ; Chemistry Techniques, Analytical ; methods ; Phenols ; chemistry ; Poliovirus Vaccine, Oral ; chemistry ; Proteins ; analysis ; Trichloroacetic Acid ; chemistry