Objective To study normal imaging features of choroid fissure and to improve the ability of diagnosis of choroid fissureneuroepithelial cyst.Methods The MR manifestations of choroid fissure were studied by comparing general brain specimen with MR images of normal brains.The analysis of CT and MRI findings of choroid fissure neuroepithelial cysts in 14 cases were also conducted.Results The whole choroid fissure was clearly displayed as fissures full of cerebrospinal fluid on MRI.Cysts were shown round or ellapse foci with sharpmargins and homogeneous low density on CT or cerebrospinal fluid-like signal intensity on MRI.There was no enhanced contrast or nodramatic changes in follow-up studies.Conclusion The recognization of MR anatomy of choroid fissure and imaging manifestations ofchoroid fissure neuroepithelial cysts can improve the ability of diagnosis and differential diagnosis of cysts.

AIM:To explore the effects of transforming growth factor-α( TGF-α) in the monoclonal formation , proliferation, migration and adhesiveness of human endothelial progenitor cells ( EPCs).METHODS: The isolated and cultured EPCs were treated with various concentrations of TGF-α(final concentrations of 1, 5, 10μg/L, respectively).At the same time, the PBS control and epidermal growth factor receptor-tyrosine kinase inhibitor (EGFR-TKI) group (10μg/L TGF-αplus 1∶1 000 EGFR-TKI) were set.The effects of TGF-αon monoclonal formation , proliferation, migration and adhesiveness of EPCs were determined by clone formation experiment , thiazolyl blue tetrazolium bromide (MTT), EdU, Transwell and adhesion assays , respectively.The expression of epithelial growth receptor (EGFR) and vascular endothelial growth factor ( VEGF) were measured by Western blotting .RESULTS:Different concentrations of TGF-αall significantly induced the monoclonal formation , proliferation, migration and adhesiveness of EPCs (P<0.01), which were inhibited by EGFR-TKI.The results of Western blotting showed that TGF-αalso induced the expression of EGFR and VEGF with a cer-tain concentration effect ( P<0.01) .CONCLUSION:By combining with EGFR induced the expression of VEGF , TGF-αsignificantly promotes the related cell function of monoclonal formation , proliferation, migration, adhesiveness in EPCs.

Objective To explore the effect of gestational hypertension on multiple organ system in neonates. Methods A total of 100 newborns whose mother had pregnancy complicating primary hypertension admitted to our hospital from December 2011 to December 2012 were selected and divided into preeclampsia group (n=53), gestational hypertension group (n=47) according to the blood pressure during pregnancy. Meanwhile, 100 newborns with healthy mother were selected as control group including 12 term infants and 88 premature infants. Data including birth weight, length and head circumference, Apgar score, the percentage of amniotic lfuid pollution, placental abruption and fetal distress, Neonatal Behavioral Neurological Assessment (NABA) score, serum level of creatine kinase, pulmonary arterial pressure, thyroid function, blood glucose, blood routine, cranial MRI parameters were collected and compared among three groups. Results In preeclampsia group, the gestational age, birth weight and head circumference, 1-min and 5-min Apgar scores were lowest while the ratio of low birth weight infants was highest among three groups, and the differences were signiifcant (P<0.05). In preeclampsia group, the rates of antenatal abnormalities (amniotic lfuid meconium III degree pollution, placental abruption and fetal distress) and complications (severe infection, myocardial damage, neonatal polycythemia, liver and kidney damage, hypoglycemia, hypothyroidism and respiratory failure) were highest among three groups, and the differences were signiifcant (P<0.01). In preeclampsia group, the red blood cell count, the levels of hemoglobin, hematocrit and thyroid stimulating hormone were signiifcantly higher than those in the other two groups ( P<0.05 ), and the white blood cell and platelet count was signiifcantly lower than that in the control group (P<0.05). The passive muscle tension scores in preeclampsia group were signiifcantly lower than those in the other two groups (P<0.05).The abnormity rate of cranial MRI in preeclampsia group was highest among three groups, and the difference was signiifcant (P<0.01). Conclusions Gestational hypertension may cause multisystem disorders in newborns, such as fetal intrauterine growth restriction, endocrine system disorders, heart dysfunction, increased blood viscosity, delayed neurodevelopment. The severity of gestational hypertension is associated with the adverse impact on the multiple systems in neonates.

To investigate the therapeutic effect and influence of quercetin and allopurinol on the function of liver and kidney in hyperuricemic rats, male SD rats were administered with the drugs by oral gavage once a day for seven consecutive days throughout the experiment. On the fifth day, the animal model of hyperuricemia was set up by hypoxanthine intraperitoneal injection. The serum was used for assaying the uric acid(UA), alanine aminotransferase(ALT), aspartate aminotransferase(AST), total bilirubin(TBIL), direct bilirubin(DBIL), β2-microglobulin(β2-MG), serum cystatin C(Cys-C), urea nitrogen(Urea)and serum creatinine(Cr)with colorimetry, continuous monitoring, chemical oxidation and enzyme-linked immunosorbent assay. The results showed that quercetin had no effect on the uric acid levels of serum, and that allopurinol reduced uric acid levels in rats significantly(P< 0. 01). The serum levels of AST and ALT in rats substantially decreased compared with normal control group(P< 0. 01), while no significant differences were found in TBIL, and DBIL. Compared with normal control group, β2-MG and Cys-C levels were significantly increased in the other five groups(P< 0. 01), serum levels of Urea and Cr were significantly higher in the allopurinol group compared to the normal control group(P< 0. 01). Modeling and administration group showed mild histopathological changes in rat kidney. The results clearly demonstrated that quercetin had no effect on the uric acid levels of serum, and allopurinol lowered uric acid significantly. There was no significant effect on the function of liver by modeling and administration, however, there was potential impaiment of renal function after modeling. Quercetin did not exhibit a protective effect on renal injury and administration with allopurinol increased kidney damage.

OBJECTIVE: To evaluate the postsurgery effects of completed video-assisted thoracic surgery (VATS) lobectomy and the indication for non-small cell lung cancer cases (NSCLC). METHODS: Retrospective analysis of 186 patients received completed VATS technique surgery for lobectomy from October 2007 to July 2010. RESULTS: All surgeries (186 cases) were performed successfully, and there was no death and severe postsurgery complications. Among the 186 patients, 1.6%(3/186) were switched to open thoracic operation. Up to now, all patients was alive, and the longest time for return was 31 months. Compared with regular lobectomy, bleeding, time for postoperative drainage and hospital stay were all decreased in completed VAST (P<0.05). In NSCLC cases, the average number of dissected lymph node was 14.5(4-22). CONCLUSION VATS lobectomy is safe and feasible. It is particularly useful for early stage NSCLC (esp.I-IIb) with proper indication.
Aged ; Aged, 80 and over ; Carcinoma, Non-Small-Cell Lung ; surgery ; Female ; Humans ; Lung Neoplasms ; surgery ; Male ; Middle Aged ; Pneumonectomy ; methods ; Retrospective Studies ; Thoracic Surgery, Video-Assisted ; methods ; Treatment Outcome ; Tuberculosis, Pulmonary ; surgery

BACKGROUND:Mesenchymal stem cells are multipotent stromal cells isolated from bone marrow,fat,umbilical cord and other tissues.It can differentiate into different cell types and secrete a variety of proteins with therapeutic potential,which has a good application prospect in the repair of muscle tissue. OBJECTIVE:To review the research progress of mesenchymal stem cells in promoting muscle tissue repair and provide a theoretical basis for further clinical application. METHODS:Relevant articles published from inception to 2022 were retrieved from CNKI,VIP,WanFang,PubMed,Embase and Web of Science databases.The keywords were"mesenchymal stem cells,muscle tissue,muscle injury,muscle atrophy,exosomes,scaffolds"in Chinese and English.The literature about mesenchymal stem cell migration promoting muscle fiber proliferation and repair was screened.Finally,98 articles were included for review and analysis. RESULTS AND CONCLUSION:(1)The related mechanisms of mesenchymal stem cell migration promoting muscle fiber proliferation and repair are complex,mostly by anti-inflammatory,inhibiting interstitial fibrosis,inhibiting the fat formation and other ways to promote muscle fiber proliferation and repair.(2)The related biological scaffolds and cell co-culture based on mesenchymal stem cells can significantly compensate for the low survival rate of mesenchymal stem cells after colonization.(3)At present,mesenchymal stem cell therapy still has apparent limitations.In the future,mesenchymal stem cells combined with other therapies should become the primary development trend.

Objective:To investigate the prognosis of severe hyperbilirubinemia in full-term infants who met the exchange transfusion criteria and were treated by blood exchange transfusion and phototherapy.Methods:A total of 168 full-term infants with severe hyperbilirubinemia who met the criteria for exchange transfusion and were hospitalized in the Neonatology Department of seven tertiary hospitals in Hebei Province from June 2017 to December 2018 were retrospectively included. According to the treatment protocol, they were divided into two groups: exchange transfusion group (38 cases) and phototherapy group (130 cases). Two independent sample t-test and Chi-square test were used to compare the clinical manifestations and follow-up results between the two groups. Multivariate logistic regression was used to analyze the risk factors for poor prognosis. Results:Neonatal severe hyperbilirubinemia in the exchange transfusion and phototherapy group were both mainly caused by hemolytic disease [42.1%(16/38) and 29.2%(38/130)], sepsis [28.9%(11/38) and 11.5%(15/130)] and early-onset breastfeeding jaundice [15.8%(6/38) and 11.5%(15/130)]. Total serum bilirubin level on admission in the exchange transfusion group was significantly higher than that in the phototherapy group [(531.7±141.3) vs (440.0±67.4) μmol/L, t=3.870, P<0.001]. Moreover, the percentage of patients with mild, moderate and severe acute bilirubin encephalopathy in the exchange transfusion group were higher than those in the phototherapy group [15.8%(6/38) vs 3.8%(5/130), 7.9%(3/38) vs 0.8%(1/130), 13.2%(5/38) vs 0.0%(0/130); χ2=29.119, P<0.001]. Among the 168 patients, 135 were followed up to 18-36 months of age and 12 showed poor prognosis (developmental retardation or hearing impairment) with four in the exchange transfusion group (12.9%, 4/31) and eight in the phototherapy group (7.7%, 8/104). Multivariate logistic regression analysis showed that for full-term infants with severe hyperbilirubinemia who met the exchange transfusion criteria, phototherapy alone without blood exchange transfusion as well as severe ABE were risk factors for poor prognosis ( OR=14.407, 95% CI: 1.101-88.528, P=0.042; OR=16.561, 95% CI: 4.042-67.850, P<0.001). Conclusions:Full-term infants who have severe hyperbilirubinemia and meet the exchange transfusion criteria should be actively treated with blood exchange transfusion, especially for those with severe ABE, so as to improve the prognosis.

【Objective】 To explore the chain mediation model of psychological capital and coping efficacy on the relationship between organizational support and competence of university psychological commissioners. 【Methods】 We recruited 366 college psychological commissioners to complete the questionnaire survey regarding organizational support, competence of psychological commissary, psychological capital, and coping efficacy. 【Results】 ① Organizational support was positively correlated with the competence of psychological commissioners (r=0.61, P<0.01), psychological capital (r=0.59, P<0.01), and coping efficacy (r=0.57, P<0.01). The competence of psychological commissioners had a positive correlation with psychological capital (r=0.61, P<0.01) and coping efficacy (r=0.63, P<0.01). There was a positive correlation between psychological capital and coping efficacy (r=0.72, P<0.01). ② Psychological capital and coping efficacy had a chain mediating effect between organizational support and competence of psychological commissioners. The proportion of indirect effect was 43.76%. 【Conclusion】 Organizational support influences the competence of psychological commissioners, which can be predicted via the chain mediating path between psychological capital and coping efficacy.