Objective To analyze the dynamic changes in serum adiponectin (APN) levels after acute myocardial infarction (AMI) and its relationship with heart failure (HF) and major adverse cardiovascular events (MACE). Methods A total of 124 AMI patients who underwent percutaneous coronary intervention (PCI) in our hospital from January 2021 to December 2023 were enrolled as AMI group. Additionally, 30 patients with non-AMI coronary artery disease and 30 healthy individuals were included in non-AMI coronary artery disease group and healthy group, respectively. General information such as age, gender, smoking, alcohol consumption, hypertension, diabetes, and blood lipids were recorded for all subjects. Serum APN levels were measured using the enzyme-linked immunosorbent assay (ELISA) method; plasma brain natriuretic peptide (BNP) levels were determined by immunofluorescence; and left ventricular ejection fraction (LVEF) was assessed using echocardiography. Changes in serum APN levels and its relationship with BNP, LVEF, and MACE were recorded during a one-year follow-up period. Results AMI patients had lower serum APN levels than those in the non-AMI coronary artery disease group and the healthy group, while levels of total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C); Lipoprotein-associated phospholipase A2 (Lp-PLA2), and the proportions of smokers and diabetics were higher(P < 0.05). A one-year follow-up of AMI patients revealed an upward trend in serum APN and BNP levels and a downward trend in LVEF levels at one week, one month, three months, six months, and one year postoperatively (P < 0.05). APN and BNP levels peaked one month after PCI, while LVEF reached its lowest level at the same time point. However, there were no statistically significant changes in these indicators in the subsequent 11 months (P>0.05). The incidence of MACE in AMI patients at one, three, six, and twelve months postoperatively was 2.8%, 3.2%, 4.6%, and 8.8%, respectively. Both preoperative and one-month postoperative serum APN levels had high predictive value for the occurrence of HF and MACE within one year in AMI patients, and the area under the curve for predicting HF and MACE one month postoperatively was larger than that preoperatively (P < 0.05). Conclusion Serum APN levels in AMI patients show an upward trend after PCI, peaking one month postoperatively. At this time point, serum APN levels have the highest predictive value for the occurrence of HF and MACE.

Objective: To investigate the in vitro antibacterial activity of triclosan combined with different antibacterial agents against triclosan-resistant multidrug-resistant Acinetobacter baumannii (A.baumannii). Methods: A total of 626 A. baumannii strains were collected from the First Affiliated Hospital of Wenzhou Medical University from 2016 to 2017. The sensitivity of these A. baumannii strains to common antibiotics was detected by VITEK 2-compact automatical microbiological analyzer and the minimum inhibitory concentrations (MIC) of triclosan were detected by agar dilution method. Checkerboard method was used to detect the changes in MIC values of triclosan against 16 triclosan-resistant multidrug-resistant A. baumannii strains after it was used in combination with four external ointments, including gentamicin, erythromycin, chloramphenicol and kanamycin, and three common antibiotics of imipenem, meropenem and ciprofloxacin, respectively. Fractional inhibitory concentration index (FICI) was used to evaluate the joint bacteriostatic effects. Results: Among the 626 A. baumannii strains, 17 were resistant to triclosan with a drug resistance rate of 2.7% (17/626). These triclosan-resistant strains had high MIC values for ciprofloxacin, imipenem, ceftazidime and other commonly used clinical antibiotic and most of them were multidrug-resistant. After triclosan was used in combination with seven different antibacterial drugs, the MIC values of all drugs decreased to various degrees compared with those when they were used alone. Triclosan in combination with gentamicin, chloramphenicol and ciprofloxacin showed synergistic effects on 62.5%, 56.25% and 62.5% of the 16 strains and additive effects on 37.5%, 43.75% and 37.5%, respectively. When it was used in combination with erythromycin, kanamycin, imipenem and meropenem, synergistic effects on 37.5%, 25%, 12.5% and 12.5%, additive effects on 37.5%, 56.25%, 62.5% and 62.5%, and indifferent effects on 25%, 18.75%, 25% and 25% of the strains were detected, respectively. No antagonistic effect was found between triclosan and any of the above antibiotics. Conclusions Triclosan combined with gentamicin, chloramphenicol and ciprofloxacin had better in vitro antibacterial effects against the triclosan-resistant multidrug-resistant A. baumannii strains in this study with synergistic and additive effects. Some indifferent effects were found between triclosan and kanamycin, erythromycin, imipenem and meropenem, but no antagonistic effects were detected.

Objective To investigate the clinical symptoms and mental state of patients with irritable bowel syndrome with diarrhea (IBS-D ) , and to analyze the characteristics of psychological disorders in patients with IBS-D and their impacts on intestinal symptoms .Methods From July 2009 to June 2012 ,patients met Rome Ⅲ criteria of IBS-D were consecutively enrolled at Peking Union Medical College Hospital .The symptoms of IBS were investigated by IBS symptoms questionnaire and mental state were evaluated by Hamilton anxiety scale (HAMA ) and Hamilton depression scale (HAMD ) . The differences in intestinal symptoms between patients with comorbid psychological disorders and without psychological disorders were compared .And the correlation between the scores of HAMA ,HAMD and intestinal symptoms were analyzed . Two independent sample t-tests ,chi square test and Fisher exact probability were performed for statistical analysis .Spearman rank correlation was used for correlation analysis .Results A total of 231 patients with IBS-D were enrolled .There were 133 males and 98 females with an age of (42 .8 ± 11 .1) years old and a disease course of (4 .5 years (8 .0 years)) .The HAMA and HAMD scores were 17 .00 ± 7 .12 and 14 .05 ± 6 .00 ,respectively ,and 72 .29％ (167/231) patients had comorbid psychological disorders ,32 .90％ (76/231 ) patients had moderate to severe anxiety and/or depression ,mainly had anxiety .The proportion of patients with ordinary abdominal pain or discomfort and the proportion of moderate to severe abdominal pain or discomfort in patients with psychological disorders were higher than those of patients without psychological disorders (53 .29％ , 89/167 vs . 34 .37％ , 22/64;49 .44％ ,44/89 vs .18 .18％ ,4/22) ,and the differences were statistically significant (χ2=6 .634 and 7 .002 , P=0 .010 and 0 .009) .In patients with comorbid psychological disorders ,more patients had frequent onset of abdominal pain or discomfort ,less achieved completely improvement after defecation , and often accompanied with defecation related symptoms .The HAMD score was positively correlated with the onset frequency of IBS (r=0 .172 ,P=0 .009) ,and the HAMA score was positively correlated with the degree of abdominal pain or discomfort before defecation (r=0 .134 , P= 0 .042) .The HAMA and HAMD scores were negatively correlated with the improvement degree of abdominal pain or discomfort after defecation (r= -0 .215 , P=0 .001 ;r= -0 .251 , P<0 .01) ,and were positively correlated with waiting time for symptoms improvement (r=0 .175 , P=0 .008;r=0 .219 , P= 0 .001) .Conclusion Most IBS-D patients have comorbid psychological disorders , anxiety and/or depression greatly impact the intestinal symptoms of patients with IBS .

Objective To discuss the clinical application of minimal residual disease in acute myelogenous leukemia(AML) by wt1 mRNA quantitative combined with multi-parameter flow cytometry (FCM).Methods Real time quantitative polymerase chain reaction (qRT-PCR) method was established for detecting wt1 gene expression level in 35 AML patients.The indexes were detected by different subtypes;And 9 cases of ease and 4 cases of recurrence in patients was followed-up and detected the wt1 level.The multiparameter flow cytometry was used to analyze the minimal residual disease in AML.Results The expression of wt1 gene was significantly higher than that of the control group.Significant difference was found(P<0.05).In the newly diagnosed AMLs, wt1 was the highest in M2 and the lowest in M6.Follow-up of 4 AML patients showed that wt1 gene expression level was markedly decreased after CR, but obviously increased after relapse.The proportion of abnormal myeloid cells in different phases significantly changed by FCM.There was no difference of minimal residual disease in AML by qRT-PCR and multiparameter flow cytometry.The ROC curve was used to analyze the recurrent cases to get the threshold value(3.33%).Conclusion The quantitative analysis of wt1 combined with multi-parameter flow cytometry can be used to monitor minimal residual disease in leukemia patients, assess the treatment efficacy and prognosis, and predict the risk of recurrence.

Objective To investigate the mechanism of STAT5-ROS pathway to mediate IM resistance of K562 cells.K562 cells were cultured with imatinib at gradually increased concentrations to generate resistance cell line.Methods CCK-8 assay was used to clarify the resistance ratio.The STAT5A and STAT5B mRNA levels were detected by RT-PCR.Flow cytometry assay was used to detect the level of ROS and cell apoptosis.The expression of STAT5 protein was detected by Western blot.Results Imatinib resistance cell line K562/G was successfully induced by gradually increasing concentrations of IM.The IC50 of K562/G was eighty times higher than K562 by CCK-8.Cell growth curve showed that K562/G was not inhibited in 20 μmol/L imatinib, whereas the K562 cell was significantly inhibited by up to 0.1 μmol/L imatinib.Intracellular level of ROS in K562/G was obviously higher than that of K562 cells(P=0.000 1).The apoptosis ratio of K562 was lower than that of K562/G when the same concentration of IM react on the two cell lines for the same time(P<0.05).The expression of STAT5A and STAT5B mRNA in K562/G was higher than in K562(P=0.000 1,P=0.017 0).Then,the level of STAT5 proteins in K562/G cells was significantly increased (P=0.009 0).Conclusion The STAT5 is highly expressed in CML.STAT5-ROS is closely related to the formation of imatinib resistance of chronic myeloid leukemia.

Purpose To explore the accuracy of ALK fused gene expression by immunohistochemistry ( IHC) in non-small cell lung cancer ( NSCLC) patients, and to investigate the clinical and pathological features of ALK-positive NSCLC patients. Methods By u-sing rabbit monoclonal D5F3 antibody, ALK IHC was performed on 234 NSCLC patients. ALK positive cases were confirmed by reverse transcription-polymerase chain reaction ( RT-PCR) . Results The positive incidence of ALK by IHC in 234 NSCLC specimens was 8. 97% (21/234), the positive rate of ALK fused gene verificated by RT-PCR was 5. 98% (14/234). There was significant difference with histological type, age, stage (P<0. 05), but no significant difference with gender, smoking history, tumor differentiation. Of 21 cases of ALK-positive NSCLC patients, the consistency of IHC and RT-PCR was 0 when IHC was ( +) , however, when IHC was or immunohistochemical score was >120, the consistency rate was 100%. Conclusion Although immunohistochemical expres-sion of ALK fused gene may have a certain false positive, IHC or immunohistochemical score> 120 show very high value for ALK fused gene RT-PCR followed by ALK immunohistochemistry in lung cancer is a economical and feasible method for the valuation of ALK fused gene.

OBJECTIVETo study tetrahydropalmatine's permeative properties of acupoint and non-adupoint transdermal administration of baijiezi tufang in vitro and in vivo.

METHODTaking tetrahydropalmatine as an evaluative component to assess the permeative of baijiezi tufang in acupoint skin and non-acupoint skin with the modified Franz diffusion cell method and in vivo penetration studies. The content of tetrahydropalmatine was determined by a HPLC method.

RESULTThe 24 hours cumulative permeation amount through acupoint skin was (13.53 +/- 3.92) microg x cm(-2), about 4 times higher than non-acupoint skin. The steady-state infiltration rates of tetrahydropalmatine in acupoint skin was (0.659 1 microg x cm(-2) x h(-1)), 4.5 times higher than non-acupoint skin. The content in acupoint skin was signally higher than that in non-acupoint skin (P < 0.05). An accumulation of fluorescence can be clearly seen in the four layers: stratum corneum > viable epidermis > dermis > subcutaneous.

CONCLUSIONIn vitro and in vivo studies show that the permeation of baijiezi tufang in acupoint skin was better than in non-acupoint skin, following a higher cumulative amount and skin content.

Acupuncture Points ; Administration, Cutaneous ; Animals ; Berberine Alkaloids ; administration & dosage ; pharmacokinetics ; Chromatography, High Pressure Liquid ; Drugs, Chinese Herbal ; administration & dosage ; metabolism ; Guinea Pigs ; Skin ; metabolism

Objective To study the significance of morphologic, immunophenotype, cytogenetic features, molecular biology (MICM) and prognosis of t (8;21) acute myeloid leukemia (AML) patients.Methods Morphological, FAB subtypes, flow cytometric immunophenotyping, G-binding technique and RTPCR were performed in 70 AML patients with t (8;21) and AML1-ETO fusion transcripts as compared with normal karyotype 70 AML patients. Results In 70 AML patients with t(8;21), 1 case of M1, 64 cases of M2, 3cases of M4 and 2 cases of ambiguity AL according to FAB classification. The CD13, CD33, CD34 and CD117expression were higher, meanwhile CD19 was positive in 40 %, CD15 was 11%, CD11b was 10 % and CD7 was 7 %. Cytogenetically, 50 % cases had additional chromosomal abnormalities, and main associated recurrent additional abnormalities were loss of a sex chromosome, 9q- and hyperdiploid. AML1/ETO fusion gene transcripts were detected in all 70 AML patients with t(8;21) by RT-PCR. CR rate of t(8;21) AML with CD19were 72 %, t(8;21) AML with CD19 and CD7 were 0; in normal karyotype AML were 31%. Conclusion The t(8;21) is the characteristic chromosome abnormality of M2. In the t(8;21), CD19, CD34 and CD117 expression are high, while CD7 are low. These antigen expression in t(8;21) AML closely correlated with karyotype. CD19 is a marker of good prognosis, but CD7 is a marker of low CR.

Objective To analyze the fusion genes derived from 29 types of chromosome structural aberrations in leukemia patients,and the significances on the MICM typing,risk grouping,and minimal residual disease(MRD)monitoring of leukemia.Methods The bone ulan-ow or blood samples from 141 leukemia patients were analyzed with a novel multiplex nested RT-PCR.In addition.chromosomal karyotypes were investigated in some patients.Results Of the 141 leukemic samples,66(46.8%)carried 13 types of MLL/AF6,MLL/AF9,dupMLL MLI/ENL,CBFβ/MYH11 and TLS,ERG.Fusion genes were positive in 27 of 57 ALL patients(47.4 q%),and 33 of 78 AML patients(42.3%),respectively.In these ALL or AML patients,7 or 6 chromosome structural aberrations were found. Conclusion This multiplex nested RT-PCR reaction could screen 29 types of chromosome structural aberrations at the same time. It may be helpful for the diagnosis, risk grouping,prognosis evaluation and the detection of minimal residual diseases after chemotherapy and bone marrow transplantation in these leukemia patients.

Objective To evaluate the proportion and clinical significance of CD4+CD25+ regulatory T cells in childhood acute lymphocyte leukemia(AEL)during different therapeutic stages.Methods 55 peripheral blood samples from 40 children patients with ALL were detected by muhiparameter flow cytometry with fluoresce-hbeled monoclonal antibody.Results Treg cells phenotypically express not only CD62L but also FoxP3 protein.In patients with ALL standard-risk the proportion of CD4+CD25Hi was(1.04±0.33)% in the first course of induction treatment, (1.60±0.44)% in maintenance treatment groups, and(1.29±0.30)% in complete remission groups respectively,while in patients with ALL the intermediate and high risk during maintenance therapy was(2.24±0.75)%.Conclusion Compared with healthy children,the proportion of Treg ceHs in ALL is significantly higher,and may be related to the effect of chemical treatment and severity of ALL.The elevated proportion of Treg may contribute to disease relapse.