Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 20
Filter
1.
Journal of Preventive Medicine ; (12): 198-202, 2022.
Article in Chinese | WPRIM | ID: wpr-920624

ABSTRACT

Objective@#To investigate the mental health literacy levels among residents in Ningbo City, so as to provide the evidence for implementing the mental health service policy and targeted mental health education.@*Methods@#Permanent residents at ages of 12 years and older were recruited in Ningbo City using the multi-stage stratified random sampling method from August to December, 2020. Subjects' mental health literacy levels were evaluated using the national mental health literacy survey of China, and the gender-, age-, region- and educational level-specific levels of mental health literacy were investigated.@*Results@#A total of 6 654 questionnaires were allocated, and 6 392 valid questionnaires were recovered, with an effective recovery rate of 96.06%. The respondents included 2 967 men ( 46.42% ) and 3 425 women ( 53.58% ). The respondents were predominantly at ages of 18 to 44 years ( 2 705 residents, 40.19%) , lived in urban areas ( 3 823 residents, 59.81% ), and had an educational level of junior high school and below ( 3 195 residents, 49.98% ). The level of mental health literacy was 19.06%, and the score of mental health knowledge was ( 64.06±18.39 ) points. In the dimension of mental health skills, the scores of interpersonal support, cognitive reappraisal and transferred attention were ( 2.58±0.51 ), ( 2.45±0.57 ) and ( 2.82±0.49 ) points, and the score of mental health awareness was ( 3.63±0.47 ) points. A higher level of mental health literacy was seen in women than in men ( 20.64% vs. 17.22%, P<0.05 ) and in urban residents than in rural residents (20.95% vs. 16.23%, P<0.05 ). In addition, there were age- and educational level-specific levels of mental health literacy among residents ( P<0.05 ), and a higher level was seen in residents at ages of 18 to 45 years ( 28.98% ) and with a bachelor degree (40.89% ).@*Conclusions@#A high level of mental health literacy is found in residents in Ningbo City. Mental health promotion campaigns are recommended among men, rural elderly residents with a low educational level.

2.
Chinese Journal of Digestive Surgery ; (12): 938-942, 2021.
Article in Chinese | WPRIM | ID: wpr-908458

ABSTRACT

Bariatric surgery has been proven to be an effective way to relieve obesity and related metabolic diseases. Complications after bariatric surgery mainly include postoperative bleeding, anastomotic leakage, gastroesophageal reflux, dumping syndrome and so on. Deep vein thrombosis is a rare complication, with low incidence in many literatures. However, deep vein thrombosis is an important cause of pulmonary embolism. Once pulmonary embolism occurs, the difficulty of treatment and mortality are both high. The authors summarize the related literature on venous thromboembolism after bariatric surgery, and briefly describe the strategies of prevention and treatment of venous thromboembolism.

3.
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery ; (12): 858-862, 2021.
Article in Chinese | WPRIM | ID: wpr-886521

ABSTRACT

@#The incidence of rib fracture in patients with chest trauma is about 70%. Simple rib fractures do not need special treatment. Multiple rib fractures and flail chest are critical cases of blunt trauma, which often cause serious clinical consequences and need to be treated cautiously. Nowadays, there is a controversy about the diagnosis and treatment of multiple rib fractures and flail chest. In the past, most of the patients were treated by non-operative treatment, and only less than 1% of the patients with flail chest underwent surgery. In recent years, studies have confirmed that surgical reduction and internal fixation can shorten the hospital stay, and reduce pain and cost for patients with flail chest, but there is still a lack of relevant clinical consensus and guidelines for diagnosis and treatment, which leads to great differences in clinical diagnosis and treatment plans. This article reviewed the treatment, surgical indications and surgical timing of multiple rib fractures and flail chest.

4.
Journal of Metabolic and Bariatric Surgery ; : 14-22, 2021.
Article in English | WPRIM | ID: wpr-900315

ABSTRACT

Purpose@#The purpose of the study is to determine the prevalence and predictors of OSA in Chinese bariatric surgery candidates. @*Materials and Methods@#The clinical data were collected from 326 patients evaluated for bariatric surgery and referred for polysomnography. Multiple logistic regression was used for identifying independent predictors of presence of OSA and ROC curve analysis to determine the best cut-off value for continuous variable. @*Results@#Baseline BMI and age were 33.3±3.7 kg/m2 and 24.3±3.1 years. 62.9% of the patients fulfilled the diagnostic criteria for OSA; Of these, 22.7% had mild OSA; 11.3% had moderate OSA, and 28.8% had severe OSA. The prevalence was significantly higher in males (84.2%) than in females (47.3%) (P<0.001). The superobese patients and the obese patients aged older than 50 years that all of those were diagnosed with OSA. A multivariate logistic regression model displayed that increasing age, BMI and neck circumference together with presence of habitual snoring and male sex were identified as risk factors of OSA. The best cut-off values for the presence of OSA for age, BMI, neck circumference were 24.5 years, 39.45 kg/m2 , 40.40 cm. @*Conclusion@#The prevalence of OSA is very prevalent (62.9%) in Chinese bariatric surgery candidates, especially in male patients (84%). Age, BMI and neck circumference together with presence of habitual snoring and male sex are independent predictors of OSA in these patients. As clinical predictors are not enough to be a properly screening for OSA, routine PSG testing should be recommended to bariatric surgery candidates.

5.
Journal of Metabolic and Bariatric Surgery ; : 14-22, 2021.
Article in English | WPRIM | ID: wpr-892611

ABSTRACT

Purpose@#The purpose of the study is to determine the prevalence and predictors of OSA in Chinese bariatric surgery candidates. @*Materials and Methods@#The clinical data were collected from 326 patients evaluated for bariatric surgery and referred for polysomnography. Multiple logistic regression was used for identifying independent predictors of presence of OSA and ROC curve analysis to determine the best cut-off value for continuous variable. @*Results@#Baseline BMI and age were 33.3±3.7 kg/m2 and 24.3±3.1 years. 62.9% of the patients fulfilled the diagnostic criteria for OSA; Of these, 22.7% had mild OSA; 11.3% had moderate OSA, and 28.8% had severe OSA. The prevalence was significantly higher in males (84.2%) than in females (47.3%) (P<0.001). The superobese patients and the obese patients aged older than 50 years that all of those were diagnosed with OSA. A multivariate logistic regression model displayed that increasing age, BMI and neck circumference together with presence of habitual snoring and male sex were identified as risk factors of OSA. The best cut-off values for the presence of OSA for age, BMI, neck circumference were 24.5 years, 39.45 kg/m2 , 40.40 cm. @*Conclusion@#The prevalence of OSA is very prevalent (62.9%) in Chinese bariatric surgery candidates, especially in male patients (84%). Age, BMI and neck circumference together with presence of habitual snoring and male sex are independent predictors of OSA in these patients. As clinical predictors are not enough to be a properly screening for OSA, routine PSG testing should be recommended to bariatric surgery candidates.

6.
Chinese Journal of Digestive Endoscopy ; (12): 632-637, 2020.
Article in Chinese | WPRIM | ID: wpr-871433

ABSTRACT

Objective:To evaluate the diagnostic and therapeutic effect of SpyGlass direct visualization system (SpyGlass) on cholangiopancreatic duct stenosis and large bile duct stones.Methods:Patients with cholangiopancreatic duct stenosis or large bile duct stones of indeterminate reasons who underwent SpyGlass at Hangzhou First People′s Hospital from September 2012 to August 2018 were recruited. Cholangiopancreatic duct stenosis were visually diagnosed using SpyGlass, and some patients underwent Spybite biopsy. Large bile duct stones were treated with SpyGlass-guided laser lithotripsy under direct visualization. The procedure success rate, clinical success rate, and adverse event incidence associated with SpyGlass were analyzed.Results:SpyGlass was performed to diagnose and treat 114 patients with bile duct stricture, 11 patients with pancreatic duct stricture and 19 patients with large bile duct stones. The total procedure success rate was 98.6% (142/144). The sensitivity, specificity, accuracy, positive predictive value, and negative predictive value of SpyGlass visual diagnosis of bile duct stricture of indeterminate reasons were 97.1% (67/69), 95.3% (41/43), 96.4% (108/112), 97.1% (67/69), and 95.3% (41/43), respectively. The accuracy of SpyGlass visual diagnosis of pancreatic duct stricture of indeterminate reasons was 100.0% (11/11). Of the 19 patients with large bile duct stones, the lithotripsy success rate was 89.5% (17/19). The success rate of primary extraction was 73.7% (14/19), and that of secondary extraction was 100.0% (5/5). The total extraction success rate was 100.0% (19/19) Four patients (2.8%) had postoperative complications, including three cases of acute cholangitis and one case of mild acute pancreatitis.Conclusion:SpyGlass is accurate and safe in the diagnosis of cholangiopancreatic duct stenosis. It is also effective and safe for treating large bile duct stones combined with laser lithotripsy.

7.
Chinese Journal of Organ Transplantation ; (12): 402-406, 2018.
Article in Chinese | WPRIM | ID: wpr-755892

ABSTRACT

Objective To compare the flow cytometry versus test tube method in detecting antibody titer in ABO blood type,and try to establish a standard method using flow cytometry to provide insight in ABO incompatible kidney transplantation and therapeutics.Methods The ABO blood type titers of anti-IgM-A/B and anti-IgG-A/B in 30 serum samples from renal allograft recipients were measured by flow cytometry.The results were compared with those determined by test tube method.Results The titers by cytometry significantly higher than those by test tube method (P<0.05).Conclusion The sensitivity of flow cytometry is significantly higher than test tube method,and flow cytometry can precisely monitor the ABO blood titers in renal allograft recipients,which can provide better medical advice in clinical treatment and therapeutics.

8.
Acta Pharmaceutica Sinica B ; (6): 467-472, 2015.
Article in English | WPRIM | ID: wpr-310005

ABSTRACT

(E)-Methyl-4-aryl-4-oxabut-2-enoate (YH-8) is a novel PKnB protein kinase inhibitor with good anti-tuberculosis activity. To evaluate its pharmacokinetics in rats, a sensitive and selective high performance liquid chromatography-tandem mass spectrometric (LC--MS/MS) method has been developed and validated for the quantification of YH-8 in rat plasma for the first time. Samples were pre-treated using a liquid--liquid extraction with ethyl acetate and the chromatographic separation was performed on a C18 column by gradient elution with methanol--water as the mobile phase. YH-8 was detected using a tandem mass spectrometer in positive selected reaction monitoring (SRM) mode. Method validation revealed good linearity over the range of 1-500 ng/mL for YH-8 with a lower limit of quantification (LLOQ) of 1 ng/mL. Intra- and inter-day precision of YH-8 assay in rat plasma samples were 2.0%-6.8%, with accuracy of the method being 100.69%-106.18%. Stability test showed that when spiked into rat plasma, YH-8 was stable for 12 h at room temperature, for up to 15 days at -70 °C, and after three freeze-thaw cycles. Extracted samples were found to be stable over 12 h in an auto-sampler. The method was successfully applied to the pharmacokinetic study of YH-8 in rats after oral administration at 100 mg/kg and 200 mg/kg.

9.
Chinese Journal of Primary Medicine and Pharmacy ; (12): 1002-1005, 2015.
Article in Chinese | WPRIM | ID: wpr-465382

ABSTRACT

Objective To examine the relationship between quetiapine serum concentration,dose,therapeu-tic efficacy and side effects in male patients with schizophrenia.Methods Sixty-three male patients with schizo-phrenia were collected.They were treated openly for 8 weeks with quetiapine,the dose was adjusted according to clini-cal improvement and tolerance.The plasma quetiapine concentrations,therapeutic efficacy and adverse drug reactions were observed after the 4 -week treatment period,and at the end of the 8 weeks of the treatment.Results After 4 weeks,the serum concentration had significant correlation with age,the disease duration and education level.After 8 weeks,there was significant correlation between serum concentration and age.We found a correlation between dose and serum concentration of quetiapine,and no relationship between serum concentration and PANSS scores.Side effects were correlated with 4 weeks′serum concentrations.Conclusion Quetiapine is effective for male patients with schizophrenia.Age,quetiapine dose and side effects have significant correlations with the serum concentration.It appears that plasma quetiapine concentration has no effects on therapeutic efficacy.

10.
Acta Pharmaceutica Sinica ; (12): 169-73, 2015.
Article in Chinese | WPRIM | ID: wpr-457285

ABSTRACT

For screening the potential drugs as anti-liver fibrosis candidates, we established a high- throughput drug screening cell model based on COL1A1 promoter. The activity of COL1A1 promoter and luciferase reporter gene can be elevated by TGF-β1, and inhibited by candidate drugs. We constructed a recombined plasmid with COL1A1 promoter and luciferase reporter gene pGL4.17, the activity of COL1A1 promoter was reflected by fluorescence intensity. COL1A1 promoter activity was detected by Dual-Luciferase Reporter Assay System, it came that the relative luciferase activity of COL1A1 promoter was 15.98 times higher than that of control group induced by TGF-β1, showing the recombined plasmid could be used in cell model. The recombined plasmid was transfected into human hepatic stellate cells LX2, detected the effect of potential drugs, and obtained a stable expression system through stable transfection and monoclonal cell culture. A sample which could reduce COL1A1 promoter activity signally by our cell model, decreased collagen I mRNA and protein expression detected by real-time RT-PCR and Western blotting. It indicates this novel cell model can be used in high-throughput drug screening of potential anti-liver fibrosis drugs.

11.
Chinese Journal of Nephrology ; (12): 345-350, 2014.
Article in Chinese | WPRIM | ID: wpr-447088

ABSTRACT

Objective To evaluate the value of immune cell functional assay (ImmuKnow CD4+ T cell ATP assay) in monitoring immune status in renal recipients.Methods A total of 131 adult renal transplant recipients who received transplantation for the first time were under investigation.According to the dynamic monitoring ATP concentration before operation,2 week,1,3,6 months after operation and during infect or rejection,samples were divided into the following groups:health control group (HC),pretransplant (Pre-Tx) group,stable (Tx) group,infect group,acute rejection (AR) group,acute kidney injury (AKI) group.Immune cell functions were detected by ImmuKnow CD4+ T cell ATP assay.Lymphocyte subsets (CD4+/CD8+) were analysed and serum concentrations of FK506 were tested.Mixed lymphocyte reaction(MLR) was analysed.Results The ATP concentration was no significant difference between Pre-Tx and HC group.The ATP concentration of 2 weeks,1 months after operation were significantly higher than Pre-Tx group (P < 0.01).After 3 months,6 months follow-up,the ATP concentration stabilized with time.The ATP concentration of AR group was significantly higher than other three groups (Tx,infect and AKI group,all P < 0.05).The correlation coefficient between the ATP concentration and MLR,CD4+/CD8+,FK506 level were R2=0.0072,R2=10-6,R2=0.004 respectively (all P > 0.05).Conclusions The cell-mediated immunity of recipients is relatively strongger during the first month after transplantation.The ATP concentration is not related to the levels of MLR,CD4+/CD8+,FK506.ImmuKnow ATP assay is a valuable predictor in acute rejection diagnosis.

12.
Chinese Journal of Nephrology ; (12): 321-325, 2013.
Article in Chinese | WPRIM | ID: wpr-436428

ABSTRACT

Objective To compare the difference of ELISA and LABScreen in detecting HLA antibodies and evaluate their effects on allograft rejection.Methods Consecutive patients undergoing kidney transplantion from November,2008 to December,2009 in the First Affiliated Hospital and the following up patients during the same period,with abnormal Scr who had completed kidney biopsies,were included in this study.Patients' HLA antibodies were detected by ELISA (Lambda antigen tray,LATTM) and LABScreen Mix Beads (LABScreen MIX,One Lambda,Canoga Park,CA,USA) or LABScreen Single antigen beads (LABScreenTM single antigen beads,One Lambda,Canoga Park,CA,USA).Patients' Scr were also detected at different time potints.Results There were 277 patietns included.Among them 145 (52.3%) cases were HLA antibody positive detected by LABScreen,which including 118 cases ELISA negative but LABScreen positive,and 27 cases both ELISA and LABScreen positive.No case was ELISA positive but LABScreen negative.Among 118 cases which were LABScreen positive but ELISA negative,41 (34.7%) cases happened acute or chronic rejection.However,only 24 cases happened rejection in 132 double negative cases (18.2%,P =0.003).There were 31% patients in rejection group while only 12.8% patients (P=0.01) in non-rejection group whose HLA antibody fluorescence intensity detected by LABScreen single antigen beads still increased two weeks after transplantation.Conclusion LABScreen is more sensitive than ELISA in detecting HLA antibodies,and its result highly correlates with the incidence of allograft rejection.

13.
Chinese Journal of Postgraduates of Medicine ; (36): 8-10, 2012.
Article in Chinese | WPRIM | ID: wpr-426969

ABSTRACT

ObjectiveTo explore the effect of simvastatin on the level of serum adiponectin and asymmetric dimethylarginine (ADMA) in patients with acute stroke.MethodsNinety patients with acute stroke were selected and divided by random digits table method into common treatment group and intervention treatment group with 45 cases each.The volume of cerebral infarction and the evaluation score of clinical neurological impairment degree were calculated.The levels of serum adiponectin and ADMA before and after treatment were detected by erzyme-linked immunosorbent assay.The changes of serum adiponectin and ADMA before and after treatment in two groups were compared and their correlations with the volume of cerebral infarction and the evaluation score of clinical neurological impairment degree were analyzed.Results The level of serum adiponectin and ADMA in two groups before treatment had no statistical differences (P > 0.05 ).The levels of serum adiponectin in two groups after treatment increased and ADMA decreased significantly,which had significant differences compared with those before treatment ( P < 0.05 ).The level ofserum adiponectin in intervention treatment group was significantly higher than that in common treatment group and ADMA was obviously lower than that in common treatment group after treatment [(5.92 ± 0.15)mg/L vs.( 4.51 ± 0.13 ) mg/L,( 0.96 ± 0.13 ) μ mol/L vs.( 1.08 ± 0.15 ) μ mol/L ] ( P < 0.05 ).Rank correlation analysis showed that the level of serum adiponectin before treatment was negatively correlated with the volume of cerebral infarction and the evaluation score of clinical neurological impairment degree ( r = -0.75,-0.59,P < 0.05).The level of ADMA before treatment was positively correlated with the volume of cerebral infarction and the evaluation score of clinical neurological impairment degree ( r =0.68,0.71,P < 0.05 ).Conclusion Simvastatin can increase the level of serurm adiponectin and decrease the level of ADMA efficiently in patients with acute stroke,and improve the prognosis of the patients.

14.
Chinese Journal of Clinical Nutrition ; (6): 175-177, 2010.
Article in Chinese | WPRIM | ID: wpr-388792

ABSTRACT

Objective To explore the association between body mass index(BMI)/waist circumference (WC)and blood triglyceride(TG)level in adults. To evaluate the value of the BMI and WC in diagnosing the hypertriglyceridemia by the receiver operating characteristic(ROC)curve.Methods A total of 1 093 adults(707men and 356 women)were examined in our hospital from July to September in 2008.Height,weight,WC and blood triglyceride were measured and analyzed.The ROC curve was drawn to evaluate the sensitivity and specificity of the threshold values.Results The hypertriglyceridemia rate was 33.5%among men and 8.3%among women.The BMI and WC of hypertriglyceridemia group were significantly higher than those of normal TG group for both men and women(P<0.01).The area under ROC curve was 0.728±0.041 for men and 0.708±0.021 for women when using BMI to predict hypertriglyceridemia.The optimal threshold value was 24.5 for men and 22.5 for women.The area under ROC curve was 0.790±0.042 for men and 0.714±0.020 for women when using WC to predict hypertriglyceridemia.The optimal threshold value was 86 cm for men and 77 cm for women.Conclusions Both BMI and WC are associated blood triglyceride level. WC and BMI are useful parameters in predicting hypertriglyceridemia.

15.
Journal of Clinical Otorhinolaryngology Head and Neck Surgery ; (24): 4-7, 2010.
Article in Chinese | WPRIM | ID: wpr-746711

ABSTRACT

OBJECTIVE@#To analyze the clinical manifestations and the diagnosis of the facial nerve tumor according to the clinical information, and evaluate the different surgical approaches depending on tumor location.@*METHOD@#Twenty-seven cases of facial nerve tumors with general clinical informations available from 1999.9 to 2006.12 in the Shanghai EENT Hospital were reviewed retrospectively.@*RESULT@#Twenty (74.1%) schwannomas, 4 (14.8%) neurofibromas ,and 3 (11.1%) hemangiomas were identified with histopathology postoperatively. During the course of the disease, 23 patients (85.2%) suffered facial paralysis, both hearing loss and tinnitus affected 11 (40.7%) cases, 5 (18.5%) manifested infra-auricular mass and the others showed some of otalgia or vertigo or ear fullness or facial numbness/twitches. CT or/and MRI results in 24 cases indicated that the tumors originated from the facial nerve. Intra-operative findings showed that 24 (88.9%) cases involved no less than 2 segments of the facial nerve, of these 24 cases 87.5% (21/24) involved the mastoid portion, 70.8% (17/24) involved the tympanic portion, 62.5% (15/24) involved the geniculate ganglion, only 4.2% (1/24) involved the internal acoustic canal (IAC), and 3 cases (11.1%) had only one segments involved. In all of these 27 cases, the tumors were completely excised, of which 13 were resected followed by an immediate facial nerve reconstruction, including 11 sural nerve cable graft, 1 facial nerve end-to-end anastomosis and 1 hypoglossal-facial nerve end-to-end anastomosis. Tumors were removed with preservation of facial nerve continuity in 2 cases.@*CONCLUSION@#Facial nerve tumor is a rare and benign lesion, and has numerous clinical manifestations. CT and MRI can help surgeons to make a right diagnosis preoperatively. When and how to give the patients an operation depends on the patients individually.


Subject(s)
Adolescent , Adult , Aged , Child , Female , Humans , Male , Middle Aged , Young Adult , Cranial Nerve Neoplasms , Diagnosis , General Surgery , Facial Nerve Diseases , Diagnosis , General Surgery , Magnetic Resonance Imaging , Treatment Outcome
16.
Chinese Journal of Medical Imaging Technology ; (12): 771-773, 2010.
Article in Chinese | WPRIM | ID: wpr-472887

ABSTRACT

It is difficult to diagnose and treat local recurrence of the rectal cancer after operation. The early diagnosis is crucial for the recurrence of rectal cancer after operation. MSCT perfusion imaging is valuable in the diagnosis of recurrence of rectal cancer after operation. The application of MSCT perfusion imaging following rectal cancer operation was reviewed in this article.

17.
Journal of Clinical Otorhinolaryngology Head and Neck Surgery ; (24): 4-7, 2010.
Article in Chinese | WPRIM | ID: wpr-433096

ABSTRACT

Objective:To analyze the clinical manifestations and the diagnosis of the facial nerve tumor according to the clinical information, and evaluate the different surgical approaches depending on tumor location.Method:Twenty-seven cases of facial nerve tumors with general clinical informations available from 1999.9 to 2006.12 in the Shanghai EENT Hospital were reviewed retrospectively.Result:Twenty(74.1%) schwannomas,4 (14.8%)neuofibromas ,and 3(11.1%)hemangiomas were identified with histopathology postoperatively.During the course of the disease,23 patients(85.2%)suffered facial paralysis,both hearing loss and tinnitus affected 11 (40.7%)cases,5(18.5%)manifested infra-auricular mass and the others showed some of otalgia or vertigo or ear fullness or facial numbness/twitched. CT or/and MRI results in 24 cases indicated that the tumors originated from the facial nerve.Intra-operative findings showed that 24(88.9%)cases involved no less than 2 segments of the facial nerve,of these 24 cases 87.5%(21/24)involved the mastoid protion,70.8%(17/24)involved the tympanic protion, 62.5%(15/24)involved the geniculate ganglion, only 4.2%(1/24)involved the internal acoustic canal(IAC),and 3 cases (11.1%)had only one segments involved. In all of these 27 cases ,the tumors were completely excised,of which 13 were resected followed by an immediate facial nerve reconstruction,including 11 sural nerve cable graft,1 facial nerve end-to-end anastomosis and 1 hypoglossal-facial nerve end-to-end anastomosis.Tumors were removed with preservation of facial nerve continuity in 2 cases.Conclusion:Facial nerve tumor is a rare and benign lesion,and has numerous clinical manifestations.CT and MRI can help surgeons to make a right diagnosis preoperatively.When and how to give the patients an operation depends on the patients individually.

18.
Chinese Medical Equipment Journal ; (6): 80-81, 2009.
Article in Chinese | WPRIM | ID: wpr-406003

ABSTRACT

Objective To investigate the CTA, MRA and DSA in the primary liver cancers and the value of the perfor-mance. Methods 29 cases of primary liver cancer patients were diagnosed through comparative analysis of CTA, MRA and DSA in the diagnosis of primary liver cancer between the common and the differences to explore the full and effective ways so as to facilitate the clinical work in a more effective diagnostic tool. Results For 29 cases of liver cancer patients, both the detection rate and accuracy rate of MSCTA were significandy higher than MRA. Conclusion At this stage, the MSCTA has features of shortcut, convenience, high detection rate, which is the preferred method of examination and has higher value in clinical application.

19.
Chinese Journal of Biotechnology ; (12): 847-853, 2009.
Article in Chinese | WPRIM | ID: wpr-286633

ABSTRACT

Ansamycins, such as rifamycin and ansamitocin, usually consist of a group of structural similar components. Geldanamycin, a benzenic ansamycin, has been found to consist of four structural similar components. We analyzed the geldanamycin (GDM) preparation from Streptomyces hygroscopicus 17997 by LC-ESI(+)-MS/MS, and discovered five novel and one known GDM analogues in trace amounts. Based on the ESI(+)-MS/MS spectra of these GDM analogues, and the present understanding of GDM biosynthesis, we proposed the possible chemical structures of these GDM analogues. Three novel GDM analogues, all having the same molecular formula of C29H42N2O10, were GDM biosynthetic derivatives with one of the three C-C double bonds between C2-C3, C4-C5 and C8-C9 in GDM changed to mono-hydroxylated C-C single bond. The other two novel GDM analogues, having the same molecular formula of C28H38N2O8, were 17(or 12, or 4)-desmethoxylgeldanamycin and 4,5-dihydro-10,11-dehydrate-17-desmethyl-17-hydroxylgeldanamycin, respectively. The known GDM analogue, having the molecular formula of C29H42N2O9, was 4, 5-dihydrogeldanamycin, an intermediate in GDM biosynthesis. The discovery of novel GDM analogues provided us new insights in understanding the biosynthetic details of GDM, and clues of obtaining GDM derivatives by gene-disruption and combinatorial biosynthesis.


Subject(s)
Anti-Bacterial Agents , Chemistry , Benzoquinones , Chemistry , Chromatography, Liquid , Methods , Lactams, Macrocyclic , Chemistry , Tandem Mass Spectrometry , Methods
20.
Chinese Medical Equipment Journal ; (6)2003.
Article in Chinese | WPRIM | ID: wpr-596382

ABSTRACT

Objective To investigate the expression of vascular endothelial growth factor(VEGF) and Color Doppler flow imaging in human thyroid tumours. Methods 90 cases of thyroid tumours were examined for VEGF expression by means of immunohistochemistry and were examined with color Doppler ultrasound for blood flow. Results The positive rates of VEGF expression were much higher in thyroid carcinomas than that in thyroid adenomas. The difference was significant( P

SELECTION OF CITATIONS
SEARCH DETAIL