Objective To investigate the effects of abnormal psychological factors on patients with different subtypes of gastroesophageal reflux disease(GERD)and on their natural history.Methods Patients with GERD symptoms were underwent 24 hour esophageal pH monitoring and endoscopy.They were enquired about frequency and severity of reflex symptoms and other informations,and filled in the Symptom Checklist 90(SCL-90).Twelve months later,they were enquired again about their symptoms and medication.Results One hundred and fifteen patients were followed up for(18.0?6.1)months (ranged from 12 to 37 months).The values of psychosomatic parameters including somatic,anxious, depression,compulsory and psychiatric scores in patients with GERD and RE were higer than normal values(both P

Objectives: To investigate the effects of adhesion and proliferation of bone mesenchymal stem cells (BMSCs) in the surface of lactic acid/glycolic acid/asparagic acid-co-polyethylene glycol PLGA-[ASP-PEG] tri-block polymer scaffolds, try to find a new biomaterial to induce seed cells in vitro for bone tissue engineering. Methods: Modified PLGA with polyethylene glycol (PEG) and asparagic acid (ASP) that has many ligands, and synthesis PLGA-[ASP-PEG] polymer material. BMSCs were cultured in PLGA-[ASP-PEG] polymer material and PLGA used as control group. Through precipitation method, MTT assay and total cellular protein detection to test the adhersion and proliferation of BMSCs. Scanning electron microscope is used to observe cells appearance. Results: BMSCs on the surface of PLGA-[ASP-PEG] polymer scaffolds are adherention to the culture flask, the number of cells is much higher than PLGA’s. The precipitation method suggest that adhesion and proliferation of BMSCs on the surface of PLGA-[ASP-PEG] is much higher than the control group(P

OBJECTIVE: To analyze the causes of the esophagogastric junction outlet obstruction (EGJOO) patients, to discuss the differences of the clinical manifestation and esophageal motility characteristics between the anatomic EGJOO (A-EGJOO) and functional EGJOO (F-EGJOO) subgroups, and to search the diagnostic values of the specific metrics for differentiating the subgroups of EGJOO patients. METHODS: For the current retrospective study, all the patients who underwent the esophageal high resonance manometry test were retrospectively analyzed from Jan 2012 to Oct 2018 in Peking University Third Hospital. The EGJOO patients were enrolled in the following research. The clinical characteristics, such as symptoms and causes of the patients were studied. Then the patients were divided into two subgroups as A-EGJOO subgroup and F-EGJOO subgroup. The clinical symptoms and the main manometry metrics were compared between these two subgroups. The significant different metrics between the two groups were selected to draw receiver operating characteristic (ROC) curves and the diagnostic values were analyzed in differentiating the A-EGJOO and F-EGJOO subgroups. RESULTS: The most common symptom of EGJOO was chest pain or chest discomfort (30.63%), then the dysphagia (29.73%), and acid regurgitation/heartburn (27.03%). Non-erosive reflux disease (36.04%) was the most popular cause for EGJOO, then the reflux esophagitis (17.12%). Besides the intra-EGJOO and extra-EGJOO lesions, the connective tissue disease (6.31%) and central nervous diseases (2.70%) were found to be the etiology of EGJOO. The causes of the rest 19 EGJOO were unknown. A-EGJOO patients presented significantly higher intra bolus pressure (IBP) than that of F-EGJOO [6.80 (5.20, 9.20) mmHg vs. 5.10 (3.10, 7.60) mmHg, P=0.016]. The area under curve of IBP was 0.637. When IBP≥5.15 mmHg, the sensitivity was 78.60% and specificity 50.70% to differentiate A- or F-EGJOO. CONCLUSION Chest pain or chest discomfort was the most common symptom in EGJOO patients. Besides the intraluminal structural disorders, the extra-luminal causes were found in EGJOO patients. A-EGJOO presented higher IBP than that of F-EGJOO patients. The cutoff value of IBP to differentiate A-EGJOO from EGJOO was 5.15 mmHg with sensitivity 78.06% and specificity 50.70%. However for the low area under curve, the diagnostic value of IBP was limited.
Deglutition Disorders ; Esophageal Motility Disorders/diagnosis* ; Esophagogastric Junction ; Humans ; Manometry ; Retrospective Studies

China ; epidemiology ; Humans ; Patient Acceptance of Health Care ; Tuberculosis, Pulmonary ; epidemiology ; psychology

Objective To investigated the effect of TangNaiKang (TNK) on VEGF protein expression of GK rats Thoracic aorta. Methods 51 male GK rats were divided into five groups randomly: model group, pioglitazone group, and TNK treatment group (low, immediate and high dose). Another 10 male Wistar rats were served as normal control group. GK rats were fed with high-grease forage, while normal control group was fed with a standard diet. Fasting blood glucose, general HE staining and VEGF protein expression were detected by immunohistochemistry. Results The fasting glucose had a significant decline in TNK treatment groups. HE staining showing TNK can ameliorate intima thickness, reduce hyperplasia of shallow vascular smooth muscle cell, and improve wavy and plexiform arrangement of elastic lamina. Immunohistochemistry also showed that TNK decreased VEGF protein expression of great vessels. Conclusion TangNaiKang can prevent and cure diabetic vascular complication of GK rats.

Objective To study the influencing factors on the operation and nursing of 24-hour gastroesophageal pH monitoring to improve the completion rate and accuracy.Methods The patients who underwent 24-hour gastroesophageal pH monitoring by HYW-2 pH monitoring device were enrolled in the study from 1 January,2010 to 30 June,2012 in Peking University Third Hospital.The patient' s cooperation and feeling during the operation,whether or not the process of monitoring the electrodes position was all right,and whether or not the results met the needs of analysis were recorded and analyzed.Results Two hundreds and sixty-four patients received the examination,and 230 cases (87.1％) successfully finished the monitoring.The problems such as difficulty in electrode insertion,patient tolerance and the obstacle to contact the electrode were found in 34 patients.Conclusions The 24-hour gastroesophageal pH monitoring is affected by the degree of patients' tolerance,the electrode insertion and position,electrode contact barrier and so on.The detailed health education is beneficial to examination.

OBJECTIVETo optimize the preparation process of gemcitabine polybutylcyanoacrylate nanoparticles (GCTB- PBCA-NP).

METHODSAccording to the particle size, the entrapment efficiency and the loading quantity of GCTB-PBCA-NP, single factor analysis was carried out to optimize the component composition and preparation process based on an orthogonal design.

RESULTSThe mean particle size of the NP was (112-/+9) nm with an entrapment efficiency of (54.12-/+2.43)% and drug loading of (11.08-/+0.89)%.

CONCLUSIONAn optimized nanoparticular drug delivery system is obtained by emulsion polymerization.

Chemistry, Pharmaceutical ; Deoxycytidine ; analogs & derivatives ; chemical synthesis ; Drug Delivery Systems ; Enbucrilate ; chemical synthesis ; Nanoparticles ; chemistry

Objective To evaluate the effects of optimal pharmacotherapy according to guideline on treating chronic heart failure(CHF)in real world clinical practice. Methods A total of 231 consecutive outpatients with reduced left ventricular ejection fraction(LVEF≤40%)and enlarged left ventricular end diastolic diameter(male ＞55 mm, female ＞60 mm)were recruited from January 2001 to June 2009. All patients were treated with optimal pharmacotherapy according to guideline recommendations and followed up to December 31,2009. Mortality, rehospitalization and changes of heart size and cardiac function at baseline and at the end of follow-up period were analyzed. Results(1)14 patients were lost during follow-up (6. 1%), and follow-up was complete in 217 patients(93.9%). 97.2% and 98.2% patients were prescribed angiotensin converting enzyme(ACE)inhibitors and β-blockers(βB). Combined of ACE inhibitors and BB use was applied in 95.3% patients. The target dose of ACE inhibitors and βB were reached in 50. 7% and 37.3% patients.(2)Lower mortality and re-hospitalization rates were observed in this cohort: all-cause morality, average annual mortality was 11.5% and 3.9% respectively. Rehospitalization rate was 27.6%.(3)Left ventricular end-diastolic diameter(LVEDD)decreased from (68.2 ±7.2)mm to(62. 2 ±9. 6)mm. LVEDD value was normal or near normal(male≤60 mm, female ≤55 mm)in 43.2% patients. LVEF improved form(29. 8 ±7. 5)% to(43. 3 ± 11.8)%, LVEF was ＞40% in 60.4% patients, LVEF was ≤ 40% but increased ≥ 10% after treatment in 22.9%patients. Conclusion Optimal pharmacotherapy according to guideline can improve prognosis of outpatients with CHF.

OBJECTIVETo evaluate the effect of JAK/STAT signaling pathway activation on the transdifferentiation and secretion of transforming growth factor-beta1 (TGF-beta1) induced by high glucose in renal proximal tubular epithelial cells.

METHODSHuman kidney cells (HKC) were cultured and then divided into four groups: low glucose (LG) group, high glucose (HG) group, high mannitol (LG + M) group, and HG + AG490 group. Immunoprecipitation and Western blot analysis were used to determine the expression of tryosine phosphorylated Janus kinase 2 ( p-JAK2). The protein expressions of STAT1, STAT3, p-STAT1, and p-STAT3 and the expressions of alpha-SMA and E-Cadherin were observed by Western blot. The contents of TGF-B1, fibronectin and type I collagen in the supernatants of the cultured HKC were detected by enzyme-linked immunosorbent assay (ELISA). The expression of TGF-beta1 mRNA was measured by reverse transcription and polymerase chain reaction (RT-PCR).

RESULTSCompared with LG group, the expressions of JAK2, p-STAT1, p-STAT3, and TGF-beta1, mRNA were significantly increased in HG group from 6 to 72 hours. Meanwhile, the contents of TGF-beta1 and collagen I in the supernatants and the expression of alpha-SMA increased and the expression of E-Cadherin decreased. The expressions of JAK2, p-STAT1, p-STAT3, and TGF-beta mRNA as well as the levels of TGF-beta1 and collagen I in the supernatant s in HG + AG490 group were significantly lower than in the HG group. The expressions of alpha-SMA and E-Cadherin were also decreased in HG + AG490 group.

CONCLUSIONActivation of JAK/STAT signaling pathway may be involved in the high glucose-induced transdifferentiation and overproduction of TGF-beta1, and ECM proteins in HKCs.

Cell Line ; Cell Transdifferentiation ; Epithelial Cells ; cytology ; metabolism ; Glucose ; metabolism ; pharmacology ; Humans ; Janus Kinases ; physiology ; Kidney Tubules, Proximal ; cytology ; metabolism ; STAT Transcription Factors ; physiology ; Signal Transduction ; Transforming Growth Factor beta1 ; biosynthesis ; secretion ; Urothelium ; cytology ; metabolism

Objective To investigate minimal inhibitory concentration (MIC) of ciprofloxacin against Pseudomonas aeruginosa induced by Pseudomonas quinolone signal (PQS) and ciprofloxacin in vitro.Methods Clinical isolates of Pseudomonas aeruginosa sensitive to ciprofloxacin were collected and then induced ciprofloxacin with three concentrations of 0.5 × MIC,2 × MIC and 4 × MIC,and PQS with three concentrations of 10,40,80 μmol· L-1,respectively for five days.The agar dilution method was used to measure MICs of all strains before and after inductions to ciprofloxacin.The MICs to ciprofloxacin before and after inductions of the same induction scheme were analysed by repeated measures analysis of variance and Paired t-test was used to compare the MICs of two induced schemes.Results Twelve clinical isolates of Pseudomonas aeruginosa sensitive to ciprofloxacin were obtained,among them one was used as the quality control strain included.There had interaction between induction time and induction concentrations of PQS or ciprofloxacin (P ＜0.001 or P ＜0.05).MICs of strains to ciprofloxacin of two induced schemes had statistically significant difference (P ＜ 0.05).Conclusion Under different concentrations of PQS,the trend of MIC values of ciprofloxacin to Pseudomonas aeruginosa varied by induction time.Under different concentrations of ciprofloxacin,MIC values tended to increase with the prolongation of induction time.The effects of two induction schemes on MIC of ciprofloxacin were different.