Objective To analyze the causes of clinical misdiagnosis of solid pseudopapillary tumor of pancreas (SPTP),and recommend the countermeasures with a combination of pertinent literature.Methods The clinical data of 10 cases of SPTP with misdiagnosis were retrospectively analyzed.There were 9 women and 1 man,and the average age was 29.3 years old.The clinical symptoms were nonspecific.Results All patients received surgical treatment,and the correct diagnosis was made according to the pathology after surgery.All patients were followed up,and no recurrence or metastasis was found.Conclusions SPTP is a rare disease in clinic.Sufficient understanding in the clinical features and imaging characteristics can improve the rate of diagnosis before operation.

Objective:To explore therapeutic effect of behavioral nursing on patients with atherosclerotic stenosis after percutaneous coronary intervention (PCI).Methods: A total of 112 patients with atherosclerotic stenosis treated in our hospital were selected.According to ramdom number table and parallel control analysis method, they were randomly and equally divided into routine nursing group and behavioral nursing group (received more active behavioral nursing based on routine nursing group), both groups were treated and observed for six months.The self-care ability scale score before and after nursing, incidence of complications and quality of life (QOL) score after six months were compared between two groups.Results: Compared with before nursing care, after six-month nursing, self-care ability scores significantly rose in both groups, P<0.01 both;compared with routine nursing group after six months, there were significant rise in self-care ability score [(110.34±12.84) scores vs.(128.49±11.39) scores](P=0.001) and each dimension score of QOL(P=0.001 all), and significant reduction in incidence rate of complications (21.4% vs.7.1%,P=0.031) in behavioral nursing group.Conclusion: Behavioral nursing can improve self-care ability, quality of life, promote rehabilitation, effectively reduce occurrence of postoperative complications in patients with atherosclerotic stenosis after percutaneous coronary intervention.

Objective To study the cultivation status of health inspection and the setting of the related major of this subject in colleges in China.Methods The setting situation of health inspection in undergraduate and junior colleges were searched from the professional information database of higher vocational schools,information query system of Chinese university and official websites of 7 junior colleges and 167 undergraduate colleges.Excel 2007 was used for inputting and sorting out data,and the data were combed and analyzed.Results The setting of college level of health inspection was approved in 2004,and there were 6 record colleges in 2014.The undergraduate level of related major was set in 2012 and only 1 college recruited students.Among 167 undergraduate universities,only 2 universities carried out professional education of health inspection,74 universities carried out professional education of health law and 65 universities carried out professional education of health management.Conclusion The subject of health inspection has been set in undergraduate and junior colleges for a short time and there are a few admissions; Professional education of preventive medicine,health law,health management and health inspection are relatively extensive.

Objective Using MRI-T2 * method to quantify the cardiac iron overload in patients with β-thalassemia major and to evaluate the correlation between cardiac T2 * values and serum ferritin (SF),liver iron concentration(LIC).Methods Fifty-eight over 10 years old transfusion-dependent patients with β-thalassemia major were underwent MRI heart measurement to obtain T2 * values.Spearman rank correlation was used to analyze the relationship between cardiac T2*,SF,and LIC.Patients were divided into two groups based on standard setting (SF ＞2500 μg/L or LIC ＞ 15 mg/g of dry tissue).Differences of cardiac T2 * values between two groups were evaluated by Wilcoxon rank sum test with cardiac T2 * ＜ 20 ms as diagnosis standard.The sensibilities and specificities of prediction for cardiac iron deposition with the index of SF ＞ 2500 μg/L or LIC ＞ 15 mg/g dry tissue were calculated,and receiver operating characteristic (ROC) curve analysis was performed.Results The range (median) of cardiac T2 * values,SF and LIC in 58 patients were 4.7-51.1 ms (14.0 ms),1345-23 640 μg/L (5741 μg/L),9.0-＞43.0 mg/g dry tissue (41.4 mg/g),respectively.There was no linear correlation between cardiac T2 * values and SF (r =-0.240,P =0.070).Cardiac T2 * values and LIC was weakly correlated (r =-0.420,P =0.002).The range (median) of cardiac T2 * values was 6.1-47.6 ms (23.7 ms) in 7 patients of SF ≤ 2500 μg/L group.The range (median) of cardiac T2 * values was 4.7-51.1 ms(13.5 ms) in 51 patients of SF ＞2500 μg/L group.There was no statistically significant difference between two groups (Z =-0.489,P =0.625).The range (median) of cardiac T2 * values was 24.4-51.1 ms (44.8 ms) in 5 patients of the LIC ≤15 mg/g dry tissue group.The range (median) of cardiac T2 * values was 4.7-45.5 ms (13.2 ms) in 53 patients of HIC ＞ 15 mg/g dry tissue group.There was significant difference between T2 * values of the two groups(Z =-2.895,P =0.004).To predict cardiac iron deposition,the sensibilities and specificities were 90.9％ (30/33) and 16.0％ (4/25) for the index of SF ＞2500 μg/L,100.0％ (33/33) and 20.0％(5/25) for LIC ＞ 15 mg/g dry tissue respectively.The areas under the ROC curve were 0.652 with the index of SF and 0.775 with the index of LIC.Conclusions MRI-T2 * method can directly quantify the cardiac iron overload in patients with β-thalassemia major.There is no linear correlation between cardiac T2 * values and SF.Cardiac T2 * values and LIC is weakly correlated.Using SF or LIC as an indirect index to predict cardiac iron deposition is not reliable in clinical.

Ob jective To study the effect of Tripartite motif 5 alpha( TRIM5α) on the proliferation and apoptosis of hepatocellular carcinoma cells.Methods The TRIM5α construction was identified by enzyme diges-tion,PCR and sequencing.The TRIM5αplasmid was transfected into HepG2 cells and identified by RT-PCR and Western blotT.he cell proliferation was monitored by RTCA real -time instrument and cell apoptosis was an-alyzed by flow cytometry.The apoptosis related proteins were detected by Western blot.Results The TRIM5αvector was successfully constructed.The result of RT-PCR and Western blot showed that TRIM5αplasmid could enter HepG2 cells.TRIM5αcould inhibit HepG2 cells proliferation also increased their apoptosis through down-regulation of Bcl-2 expression and activation of Caspase-3 expression.TRIM5αalso could inhibit the tumor formation of HepG2 cells in vivo.Conclusion TRIM5αinhibited cell proliferation, promoted apoptosis and weakened the tumorigenic ability of HepG2 cells.This will establish the foundation for the mechanism study and the clinic use of TRIM5αfor tumor therapy in the future.

Objective To investigate the molecular mechanism of As 2 O3 in suppressing metastasis of esophagus carcinoma cells.Methods The 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-tetrazolium bromide (MTT) assay, adhesion and invasion assay were performed to observe the inhibitory effect of As 2 O3 on proliferation and metastasis of esophagus carcinoma cells .The expressions of matrix metalloproteinases ( MMP)2, MMP9, E-cadherin, and protein tyrosine phosphatase receptor-type O ( PTPRO) were analyzed with Western blot .Results Exposure to As 2 O3 significantly presented suppressive functions on growth and metastasis of esophagus carcinoma cells in a dose-dependent manner ( P <0.01 ) .Additionally , MMP2 and MMP9 expressions were increased after treatment with casticin ( P <0.01 ) , whereas E-cadherin and PTPRO expressions were down-regulated ( P <0.01 ) .Conclusions As2 O3 had a significant function to inhibit proliferation and metastasis of esophagus carcinoma cells .

BACKGROUND:Early detection and accurate staging diagnosis of heart failure are the basis of good clinical therapy efficacy. Due to lack of simple and effective staging model for the diagnosis of heart failure, it is difficult to diagnose heart failure in clinics, leading to poor control of heart failure. OBJECTIVE:To establish the disease staging model based on Adaboost and SVM for heart failure, and improve the accuracy of diagnosis and staging of heart failure. METHODS:A total of 194 cases were roled into this study, including heart failure patients and healthy physical examination persons. According to the stage standards formulated by American Colege of Cardiology and American Heart Association, specific clinical feature parameters closely related to heart failure were colected and selected. Based on clinical diagnosis results and using Adaboost model and SVM model, we trained the models for heart failure diagnosis and staging, thus obtaining diagnosis model. RESULTS AND CONCLUSION: The parameters included stroke volume, cardiac output, left ventricular ejection fraction, left atrial diameter, left ventricular internal diameter at end-systole, N-terminal pro-brain natriuretic peptide and heart rate variability. As for the Adaboost model, its sensitivity and specificity was 100% and 94.4%, respectively. At the same time the SVM model had good sensitivity and specificity, 86.5% and 89.4% respectively. Adaboost classification model can be accurate in the diagnosis of heart failure symptoms, the accuracy reached 89.36%. On the basis of the diagnosis of heart failure, the SVM classification model is effective in staging the severity of heart failure, staging accuracy for staging B and C was 86.49% and 81.48%, respectively. The findings indicate that, combining Adaboost and SVM machine learning models could provide an accurate diagnosis and staging model for heart failure.

Environmental stimuli-sensitive biodegradable drug delivery systems are drawing more and more attentions because of their advantages such as smart properties, high efficiency and easy-to-handle properties. On the basis of a large quantity of references on this topic, a review has been made on the developments of the thermosensitive and pH-sensitive intelligent polymeric systems for drug delivery.
Biocompatible Materials ; chemistry ; pharmacology ; Biodegradation, Environmental ; Chitosan ; chemistry ; Delayed-Action Preparations ; Drug Delivery Systems ; Excipients ; chemistry ; Humans ; Polyethylene Glycols ; chemistry ; Polyglactin 910 ; chemistry

Objective:To identify the pathogenic characteristics of a suspected gonadal mosaicism Becker muscular dystrophy (BMD) family, and provide provide basis for pregnancy selection of similar families.Methods:A BMD family admitted to Hunan Jiahui Genetics Hospital from June 2012 to September 2019 was systematically reviewed. The medical history and family history of the proband were checked, and multiplex ligation-dependent probe amplification was used to detect the deletion/duplication of 79 exons of the Duchenne muscular dystrophy (DMD) gene in the proband, fetuses, and parents. Moreover, potential variants were verified by combining PCR amplification, short tandom repeat polymorphic linkage analysis, and real-time fluorescence quantitative PCR. High-quality embryos are screened for transplantation after preimplantation genetic testing for monogenic (PGT-M). And amniotic fluid was collected in the second trimester for prenatal diagnostic verification.Results:According to the phenotype analysis of the proband, the initial clinical diagnosis was BMD, and the exon 45-50 deletion in DMD gene was detected. The mutation was not detected in the mother′s peripheral blood, but when she was pregnant again, the prenatal diagnosis showed that the fetus had the same deletion mutation as the proband. Neither of two vitro embryos tested by PGT-M has the deletion mutation, then single embryo transfer was performed nor was pregnancy successful. After confirmation of prenatal diagnosis during pregnancy, a normal baby girl was born by full-term cesarean section.Conclusions:This BMD family was a family with two consecutive BMD homodeletion mutations, and the mutation of the DMD gene was not detected in the peripheral blood of the proband′s mother and two embryonic cells, suggesting that the mother may be a gonad chimeric carrier of this deletion mutation. The combined application of prenatal diagnosis and PGT-M provides a reference approach to effectively avoid the birth of similar children.

Objective:To explore the social and physical anhedonia and its relationship to intrinsic motivation in patients with schizophrenia.Methods:One hundred and twenty-five stable schizophrenic patients from three psychiatric hospitals in Hefei, Wuhu and Beihai, and 101 healthy controls from same communities were recruited.All subjects completed Chinese version of revised social anhedonia scale(RSAS-C), Chinese version of revised physical anhedonia scale(RPAS-C) and intrinsic motivation inventory for schizophrenia research(IMI-SR), while positive and negative syndrome scale(PANSS) and Calgary depression scale for schizophrenia(CDSS) were used to assess the clinical symptoms of schizophrenic patients.All analyses were conducted by SPSS 26.0 software.The Mann-Whitney U test and covariance analysis were used for comparison between the groups, and Spearman correlation and multiple logistic regression analysis were used to explore the association between the anhedonia and intrinsic motivation in schizophrenics. Results:Compared with controls, the RSAS-C (10.00(6.00, 14.00) vs 11.00(8.00, 15.00), Z=-2.187, P<0.05) and RPAS-C (12.00(7.50, 20.00) vs 16.00(10.00, 23.00), Z=-3.026, P<0.01) scores in patients were higher, but the differerce between the groups disappeared after controlling age, sex and years of education.The IMI-SR perceived choice subscore (31.00(28.00, 39.00 vs 36.00(31.00, 42.00), Z=-3.172, P<0.01) were lower, while value/usefulness subscores (41.00(35.00, 45.00) vs 36.00(32.00, 42.00), Z=-3.387, P<0.01) were higher in patients than those in controls, and there was no significant difference between the total score and interest/enjoyment subscore(both P<0.05). In patents, Spearman correlation analysis showed that the RSAS-C and RPAS-C scores were significant negatively correlated with the IMI-SR total scores and interest/enjoyment subscore, perceived choice and value/usefulness( r=-0.193--0.364, all P<0.05), which still existed after controlling age, sex, years of education, course of disease, antipsychotic dose, and scores of PANSS and CDSS.Logistic regression analysis showed that the score of RSAS-C( B=-0.096, 95% CI=0.836-0.998, P=0.025) and perceived choice subscore( B=-0.110, 95% CI=0.823-0.974, P=0.010) had negative effects on the IMI-SR total score. Conclusion:There is a correlation between anhedonia and intrinsic motivation in patients with schizophrenia, the higher the social anhedonia, the lower the intrinsic motivation to participate in cognitive activities, suggesting that intervention for social anhedonia may have significance in improving the intrinsic motivation of patients with cognitive rehabilitation therapy.