Achievements and prospects in endovascular treatment of aortic aneurysms / 中华普通外科杂志

In recent years, endovascular treatment has emerged as the preferred approach for aortic aneurysms. From an anatomical perspective, the current focus of research remains on the reconstruction of iliac artery branches, multiple branches of visceral arteries, and branches of the aortic arch. Substantial clinical evidence has been accumulated in these areas. Simultaneously, future research is expected to explore the reconstruction of the aortic root involving coronary arteries openings and the inhibition of small arterial aneurysm progression through pharmacological means. This article aims to provide a review of significant research data in recent years related to the treatment of aortic aneurysms, offering insights and prospects for future research directions.

Mechanism and treatment strategies of immune checkpoint inhibitors related biliary type hepatotoxicity / 中国肿瘤生物治疗杂志

@#肿瘤免疫检查点抑制剂（ICI）治疗近年来因疗效显著而备受瞩目。ICI引起的免疫介导肝毒性（IMH）是一类较常见的免疫相关不良反应（irAE），但IMH中的一种亚分型，胆管型IMH（BIMH），却是一种少见的、对其认知极不充分、缺乏诊疗规范的irAE，存在临床隐患。BIMH以胆管酶显著升高、高胆红素血症为临床特点，组织病理学表现为胆管炎症、胆管损伤和消失。胆汁淤积阶段的BIMH对于免疫抑制治疗反应不佳，预后差。提高对BIMH的认识，早期诊断和干预是提高BIMH预后的关键。对BIMH流行病学特征、临床特征、组织病理学特点和发生机制及BIMH全程管理中存在之问题等认识的不断提高，有助于提出针对BIMH的有效诊疗策略。

Difference in Brain Age Between Alzheimer's Disease and Mild Cognitive Impairment / 中国医学科学院学报

Objective To investigate the brain age differences between Alzheimer's disease(AD)and mild cognitive impairment(MCI)patients,and further explore the correlations between brain age gap(BAG)and clinical features.Methods The clinical data and radiologic findings of 132 probable AD and AD-derived MCI patients diagnosed at Beijing Tiantan Hospital,Capital Medical University from December 2018 to July 2021 were retrospectively analyzed.According to the diagnostic criteria for AD and MCI,the patients were assigned into AD and MCI groups.In addition,156 volunteers without neurological diseases and other severe diseases were recruited as the control group.The general data,Montreal cognitive assessment(MoCA)score,and mini-mental state examination(MMSE)score were compared among the three groups.The deep learning-based brain age prediction model was employed to calculate the BAGs of the three groups.Spearman correlation analysis was conducted to explore the correlations between BAG and clinical features.Results The 132 patients included 106 patients in the AD group and 26 patients in the MCI group.The MoCA and MMSE scores followed an ascending trend of AD group<MCI group<control group(all P<0.001).The predicted brain age and BAG in the AD group were higher than those in the MCI group(P=0.040,P=0.003)and control group(P=0.001,P<0.001).There was no significant difference in predicted brain age or BAG between MCI and control groups(P=0.352,P=0.224).BAG was negatively correlated with MoCA score(r=-0.341,P<0.001)and MMSE score(r=-0.324,P=0.001)in the AD group.Conclusion BAG can be used as an imaging biomarker to evaluate the degree of brain structural variation and the severity of brain injury in the patients with cognitive impairment.

Anterior aesthetic restoration with ultrathin porcelain veneers on asymmetric faces assisted by a four-dimensional smile design: a case report and literature review / 口腔疾病防治

Objective@#To explore the application effect of a four-dimensional smile design as the leading and facial streamline as the reference system in the aesthetic restoration of anterior teeth.@*Methods@# A case of scattered space in anterior teeth was treated with a four-dimensional smile design and digital aesthetic restoration with ultrathin porcelain veneer. The digital information of the patients was obtained through oral and facial scanning, and a four-dimensional smile design and prediction were carried out. After the treatment plan was jointly determined by doctors and patients, minimally invasive abutment preparation was carried out, and ultrathin porcelain veneer was made and bonded in place. After the operation, the esthetic degree and marginal fit were observed and reexamined one year after the repair.@* Results @#The edges of the ultrathin ceramic veneers were naturally tight, and the color was coordinated, with satisfying pink and white esthetics. The face was more harmonious and natural when smiling. One year after the restoration, the facial aesthetics were wonderful, the abutment teeth and periodontal tissues were healthy, and the patients were satisfied. The results of the literature review showed that the fitting of temporal facial scanning and intraoral scanning data can accurately predict four-dimensional smile aesthetics, simulate the real state of the dynamic smile and pronunciation process, and combine it with facial streamlines to design a natural and coordinated personalized smile for patients with asymmetric faces. However, for patients with occlusal changes, unstable occlusion or temporomandibular joint disorder, it is necessary to add data fitting, such as electronic facial arch and cone beam CT, to more accurately simulate postoperative mandibular movement.@*Conclusion@# With a four-dimensional smile design as the leading and facial streamline as the reference system, the whole process digital design assisted the restoration of asymmetric anterior teeth with ultrathin porcelain veneer and had a good effect. The postoperative smiling of patients is harmonious and beautiful, which is in line with the expected effect. Patient participation and satisfaction are high; thus, this method is worthy of clinical promotion.

Herbal Textual Research on Platycodonis Radix in Famous Classical Formulas / 中国实验方剂学杂志

In this paper， the name， origin， quality evaluation， producing area and processing methods of Platycodonis Radix used in the famous classical formulas are researched by consulting related materia medicas， prescription books and medical books of the past dynasties. It was found that Platycodonis Radix was the correct name in the materia medicas of the past dynasties， which was named for its "roots are strong but the stems are straight". Its dominant base of the past dynasties was Platycodon grandiflorus， and since the Ming and Qing dynasties， Hexian county of Anhui has been respected as the representative authentic producing area. In modern times， it has been concluded that the quality of Platycodonis Radix is best if the body is dry， thick and uniform， solid， white in color， and bitter in taste. In ancient times， the processing methods of Platycodonis Radix were mainly removing the reed head and floating skin， rice simmering and drying， and slicing and micro-frying. In modern times， its processing methods have been mainly simplified to peeling and cutting into thick slices. Therefore， it is recommended to use the dry roots of P. grandiflorus and its raw products in the famous classical formulas.

Two cases treated by different strategies for common carotid artery dissection with thrombosis due to a type a aortic dissection

Abstract Total arch replacement and stent trunk were performed for two patients. One of these underwent a total bilateral carotid artery replacement in anatomical position while the other underwent partial carotid artery dissection. The first patient demonstrated no neurological complication after surgery and a postoperative computed tomography angiography (CTA) showed bilateral common carotid artery patency. However, the second patient had neurological dysfunction after surgery, while a postoperative CTA showed occlusion of the left common carotid artery. Anatomical replacement for a common carotid artery dissection with thrombus has the potential to significantly improve cerebral perfusion and reduce postoperative neurological complications.

Research progress in process and mechanisms of embryo implantation / 生理学报

The onset of tight connection between embryo and uterine endometrium terms "embryo implantation", the beginning and a key step of mammalian pregnancy. Defective implantation leads to failure of pregnancy and infertility. In recent years, along with the technological advance, researches on embryo implantation have achieved great advances. This paper reviews the key research achievements that have been reached in the last decade in the field of embryo implantation, focusing on the changes, roles, and underlying mechanisms of both luminal and glandular epithelia during implantation process, as well as their interactions with embryo trophoblast cells and endometrial stromal cells.

Serum Level of MiR-609 and Its Clinical Prognostic Value in Patients with Thalassemia / 中国实验血液学杂志

OBJECTIVE@#To investigate the level of serum microRNA-609 and its clinical prognostic value in patients with thalassemia.@*METHODS@#One hundred and twenty-seven patients with thalassemia treated in our hospital from April 2017 to April 2018 were selected, 100 healthy persons were selected as control group. The changes of miR-609 were analyzed by RT-PCR, the relationship between miR-609 and clinical indicators of thalassemia was analyzed, and the prognostic risk factors of thalassemia were evaluated by multivariate logistic regression analysis.@*RESULTS@#The relative expression level of miR-609 in thalassemia patients was 3.17±0.24, which was significantly higher than that in control group (P0.05). The incidence rate of mild anemia in high expression group was significantly lower than that in low expression group (P0.05). The number of patients with severe anemia in the miR-609 high expression group was higher than that in miR-609 low expression group (P<0.05). The incidence rate of dizziness, fatigue and fever in patients with miR-609 high expression group was significantly higher than those in patients with miR-609 low expression (P<0.05). There was no correlation between the level of miR-609 and the incidence rate of nausea in patients with thalassemia. ROC curve showed that the AUC value of microRNA-609 was 0.862, the sensitivity was 83.6%, and the specificity was 84.1%, which suggested that miR-609 had a high diagnostic value for thalassemia. Multivariate logistic regression analysis showed that MCH and mir-609 were risk factors for poor prognosis of thalassemia patients.@*CONCLUSION@#The increased level of serum miR-609 in patients with thalassemia is a risk factor for poor prognosis and can be used as a reference index for evaluating the efficacy for patients.

MicroRNA-663 facilitates the growth, migration and invasion of ovarian cancer cell by inhibiting TUSC2

BACKGROUND: MicroRNAs (miRNAs) have emerged as the critical modulators of the tumorigenesis and tumor progression. METHODS: The levels of miR-663 in ovarian cancer cell lines and clinical tissues were detected using qRT-PCR assays. The Transwell invasion and wound healing assay were conducted to assess the roles of miR-663 in the migration and invasion of ovarian cancer cell in vitro. Rescue assays were carried out to confirm the contribution of tumor suppressor candidate 2 (TUSC2) in the aggressiveness of cancer cell which was regulated by miR-663. RESULTS: The levels of miR-663 were up-regulated in ovarian cancer tissues in comparison with the corresponding normal tissues. Up-regulation of miR-663 increased the proliferation, colony formation, migration and invasion of ovarian cancer SKOV3 cell. Additional, over-expression of miR-663 increased the tumor growth of SKOV3 in xenograft model. Bioinformatics analysis and luciferase reporter assay identified that miR-663 decreased the level of TUSC2 via binding to the 3'-UTR of TUSC2 gene. Finally, the expression of TUSC2 was inversely associated with the level of miR-663 in ovarian carcinoma tissue and over-expression of TUSC2 inhibited the migration and invasion abilities of SKOV3 that was promoted by miR-663. CONCLUSION: Altogether, these results indicate that miR-663 acts as a potential tumor-promoting miRNA through targeting TUSC2 in ovarian cancer.

Ramipril can alleviate the accumulation of renal mesangial matrix in rats with diabetic nephropathy by inhibiting insulin-like growth factor-1

Abstract Purpose: To investigate the impact of Ramipril (RAM) on the expressions of insulin-like growth factor-1 (IGF-1) and renal mesangial matrix (RMM) in rats with diabetic nephropathy (DN). Methods: The Sprague Dawley rats were divided into normal control (NC) group (n = 12), DN group (n = 11), and DN+RAM group (n = 12). The ratio of renal weight to body weight (RBT), fasting blood glucose (FBG), HbA1c, 24-h urine protein (TPU), blood urea nitrogen (BUN), creatinine (Cr), renal pathological changes, the levels of IGF-1, fibronectin (FN), type IV collagen (Col-IV), and matrix metalloproteinases (MMP)-2 were compared among the groups. Results: Compared with NC group, the RBT, FBG, HbA1c, TPU, BUN, Cr, and RMM in DN group were significantly increased (P < 0.05), the IGF-1, FN, and Col-IV were significantly upregulated (P < 0.05), while MMP was significantly downregulated (P < 0.05). Compared with DN group, the indexes except for the FBG and HbA1c in DN+RAM group were significantly improved (P < 0.05), among which IGF-1 exhibited significant positive correlation with TPU(r=0.937), FN(r=0.896) and Col-IV(r=0.871), while significant negative correlation with MMP-2 (r=-0.826) (P<0.05). Conclusion: RAM may protect the kidneys by suppressing IGF-1 and mitigating the accumulation of RMM.

Analysis of Irregular Antibody Production in Severe β-Thalassemia Children with long-term Blood Transtusion and Its Correlation with RH Gene and Anemia Gene Mutation Site / 中国实验血液学杂志

<p><b>OBJECTIVE</b>To analyze the prevalence of irregular antibodies in children with severe β-thalassemia after long-term blood transfusion and its correlation with RH and anemia gene mutations site.</p><p><b>METHODS</b>One hundred twenty children with severe β-thalassemia and long-term blood transfusion were selected in our hospital, the genomic DNA was extracted and the genotype of RH factor were determined by PCR-SSP. The irregular antibodies and their types were screened and identified by the serological method, the gene types of the severe β-thalassemia were analyzed by reverse dot blot hybridization on DNA chip and PCR amplification.</p><p><b>RESULTS</b>The major of RH genotypes in 120 children were Ce/Ce (59.17%) and CE/ce (25%), among them 10 children possessed the positive irregular antibodies (8.33%), out of these 10 children, the genotypes of RH factor were Ce/Ce in 6 cases, cE/cE, CE/ce, cE/ce and Ce/ce in one case; among these 10 children with positive irregular antibodies, the anemia gene mutations were IVs-11654M in 2 cases, cD4142M in 6 cases, 28M in 1 case, and CD71-72M in 1 case.</p><p><b>CONCLUSION</b>Irregular antibodies produced by regular blood transfusion in children with severe β-thalassemia may be related with RH factor and anemia gene mutation sites.</p>

Novel therapeutic targets for post-traumatic stress disorder:endocannabinoid system / 中国病理生理杂志

Post-traumatic stress disorder (PTSD) is a kind of mental disorder that usually occurs after life-threatening and strong mental traumas .Clinical studies showed that the PTSD patients are 3 times more likely to have can-nabis as compared with the healthy people .The use of cannabinoids has a close relationship with the occurrence and clini-cal manifestations of PTSD .Experimental studies revealed that endocannabinoid ( eCB) signal alterations in animal models of PTSD influenced fear memory of the animals , suggesting a close correlation between the eCB system and the pathogenesis of PTSD.Given that the eCB system was reported to regulate affective states and participate in memory consolidation , re-trieval and extinction , targeting the eCB system may improve the emotional and cognitive features of PTSD , thereby holding out great promise for the development of novel approaches for clinical treatment of PTSD .

Effect of lutein intervention on visual function in patients with early age-related macular degeneration / 国际眼科杂志(Guoji Yanke Zazhi)

AIM:To study the effect of lutein intervention on visual function of patients with early age-related macular degeneration (AMD).METHODS:Totally 200 early AMD patients were divided into lutein intervention group (20mg/d) and placebo group by a randomized,double-blind,placebo-controlled trail.Questionnaire investigation,serum lutein concentration and visual function were conducted at baseline,12,24,36 and 48wk respectively.RESULTS:The serum lutein concentration in lutein intervention group was higher than the baseline (P＜0.05) and those of placebo group at 12,24,36 and 48wk after intervention (P＜ 0.05).The spatial frequencies of contrast sensitivity (CS) at low (3 cycles/degree) and medium (6 cycles/degree) in lutein intervention group,macular pigment optical density (MPOD) and best-spectacle corrected visual acuity (BCVA) were higher than those of placebo group (P＜ 0.05).Contrasted to baseline,the low and medium spatial frequencies of CS in lutein intervention group were higher (P＜ 0.05),while,there were no statistical significance in MPOD and BCVA between before and after treatment (P＞0.05).CONCLUSION:Lutein intervention can improve the visual function of patients with early AMD.

Changes and significance of serum levels of VEGF, ES, TKLK, TSP and sICAM-1 in patients with diabetic retinopathy / 国际眼科杂志(Guoji Yanke Zazhi)

·AIM: To investigate the changes of serum levels of vascular endothelial growth factor ( VEGF ) , Endostatin (ES), thrombospondin (TSP), tissue kallikrein (TKLK) and soluble intercellular adhesion molecule-1 ( sICAM-1) in patients with diabetic retinopathy ( DR ) and its clinical significance.·METHODS:Selected 60 patients with non-proliferative diabetic retinopathy ( NPDR group ) , 60 patients with proliferative diabetic retinopathy ( PDR group ) were enrolled in this study. Sixty diabetic patients without diabetic retinopathy ( DM group ) and 60 healthy people ( control group) were also enrolled. Collection time was from January 2014 to December 2016. Serum levels of VEGF, ES, TSP, TKLK and sICAM-1 were measured and compared.·RESULTS: The levels of serum VEGF, TKLK and sICAM-1 in PDR group were significantly higher than those in NPDR group, DM group and control group ( P<0. 05). The ES of PDR group was significantly lower than that of NPDR group, DM group and control group ( P<0. 05). The levels of VEGF, TKLK and ES in the NPDR group were significantly higher than those in the DM group and the control group (P<0. 05). The serum VEGF in the NPDR group was positively correlated with the levels of ES, TKLK and sICAM-1 (P<0. 05). The serum VEGF of PDR group was positively related to the levels of TKLK and sICAM-1 (P<0. 05). There was no significant relationship between serum VEGF with ES and TSP in PDR group (P>0. 05).·CONCLUSION: The levels of serum ES, TSP, TKLK and sICAM - 1 in patients with DR have changed significantly, and the process of retinopathy has been affected by regulating the level of VEGF.

Comparative study of perioperative outcome between endovascular repair and open surgical repair for ruptured abdominal aortic aneurysm / 中华外科杂志

<p><b>OBJECTIVE</b>To compare the perioperative outcome between the endovascular repair (EVAR) and open surgical repair (OSR) for ruptured abdominal aortic aneurysm.</p><p><b>METHODS</b>From January 2006 to January 2013, totally 66 patients with ruptured abdominal aortic aneurysm (rAAA) treated by surgery were retrospectively analyzed in Department of vascular surgery, People's Liberation Army General Hospital. According to the repair method, all the subjects were divided into EVAR group and OSR group. EVAR group included 40 patients, 30 patients were male, 10 patients were female, aged from 47 to 78 with a mean of (71 ± 7) years. OSR group included 26 patients, 21 patients were male, aged from 45 to 87 with a mean of (72 ± 9) years. The difference of the operation time, the amount of suspended red blood cells, ICU stay time, case fatality rate, adverse event rate and the difference of the two intervention rate were compared between the 2 groups by χ(2) test and t test.</p><p><b>RESULTS</b>There were significant differences between the 2 groups in operation time, the amount of suspended red blood cells, ICU stay time, case fatality rate, adverse event rate ((183 ± 44) minutes vs. (384 ± 108) minutes, t = -10.59, P = 0.00; (0.4 ± 0.8) units vs. (1.1 ± 1.8) units, t = -2.19, P = 0.03; (3.0 ± 1.8) d vs. (8.5 ± 5.1) d, t = -6.34, P = 0.00; 20.0% (8/40) vs. 46.2% (12/26), χ(2) = 5.10, P = 0.02; 25.0% (10/40) vs. 53.8% (14/26), χ(2) = 5.67, P = 0.02). There were no significant differences in frozen plasma quantities and the two intervention rate between the 2 groups (t = -1.98, P = 0.05; χ(2) = 0.49, P = 0.48).</p><p><b>CONCLUSIONS</b>EVAR decreases the perioperative mortality and adverse event of rAAA compared with OSR. More studies are necessary to compare the middle and long-outcome between EVAR and OSR of rAAA.</p>

Content determination of Forsythoside A in Yinqiaosan granules by HPLC / 药学实践杂志

Objective To establish a method for determination of the content of Forsythoside A in Yinqiaosan granules . Methods HPLC method was adopted to carry on the determination .Welch Ultimate XB‐C18 column (250 mm × 4 .6 mm ,5μm) was used with the mobile phase of methanol‐0 .2% Glacial acetic acid solution by gradient elution . The flow rate was 1 .0 ml/min ,the detection wavelength was 330 nm ,and the column temperature was 20 ℃ .Results Forsythoside A showed a good linear relationship at the range from 0 .080 3~3 .211 μg (r=1 .000) .The average recovery rates were 103 .78% ,and RSD=0 .82% .Conclusion The method was convenient and accurate .Meanwhile ,it also has good specificity and reproducibili‐ty .It can be used effectively for the quality control of Yinqiaosan granules .

Inhibitory Effect of Curcumin on Proliferation of CD34(+) Acute Myeloid Leukemia Cells and Its Mechanism / 中国实验血液学杂志

<p><b>OBJECTIVE</b>To explore the inhibitory effect of curcumin on proliferation of CD34(+) acute myeloid leukemia cells and its mechamism.</p><p><b>METHODS</b>KG1a and Kasumi-1cell lines were treated with curcumin of different concentrations (0, 40, 60, 80 µmol/L). The effect of curcumin on cell viability and proliferation was detected by trypan blue staining and cell count. The effect of curcumin on distribution of NF-κB P65 subunit was analyzed by immunofluorescence and Western blot.</p><p><b>RESULTS</b>The curcumin inhibited proliferation of KG1a and Kasumi-1 cells in a dose-dependent manner. Western blotting showed that curcumin led to significant down-regulation of NF-κB P65 nuclear protein expression. Immunofluorescence assay showed that treatment with 40 µmol/L of curcumin for 48h suppressed the nuclear translocation of NF-κB p65 in KG1a and Kasumi-1 cells.</p><p><b>CONCLUSION</b>The curcumin suppresses cell growth of KG1a and Kasumi-1 cells, its mechanism may be related to inhibitory effect of curcumin on NF-κB p65 nucleus protein.</p>

Preliminary clinical observations on autologous cultured skin fibroblasts transplantation to treat the facial soft tissue deficiencies / 中华整形外科杂志

<p><b>OBJECTIVE</b>To observe the effect and safety of autologous cultured skin fibroblasts transplantation for treating depressed facial skin defects.</p><p><b>METHODS</b>A total of 19 patients were treated from Jan, 2010 to Oct, 2010. Autologous skin fibroblasts were separated from postauricular skin biopsy or resected skin tissue in other surgeries such as blepharoplasty. They were cultured and expanded with exclusive method. Cells (2 x 10(7)/ml) within three passages were injected intradermally at the site of skin depression three times at one-month interval. Adverse events were observed and recorded. Clinical effects were evaluated and graded by two unrelated physicians before and 6 months after the first injection.</p><p><b>RESULTS</b>Cells from 16 patients were successfully cultured at the first time. The other 3 patients underwent a second harvest. A total amount of 6 x 10(8) cells could be reached within three passages in 45 days. 16 out of 19 patients accomplished the whole course of this study. Minor adverse events were observed in two patients including small ulcer caused by over injection in one patient and slightly redness and swelling in the other. The redness disappeared after a week without any treatment. No serious complications were observed. Significant difference was noticed between the scores obtained before and after the treatment.</p><p><b>CONCLUSIONS</b>From this study, neither serious complications nor excessive cell proliferation or scar formation was found after cell injection. The effect of using autologous fibroblast transplantation was obvious and long-lasting, which provides a new choice for the treatment of depressed facial skin defects.</p>

Elastic fiber regeneration in vitro and in vivo for treatment of experimental abdominal aortic aneurysm / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>The pathological characteristics of abdominal aortic aneurysm (AAA) involved the regression of extracellular matrix (ECM) in aortic walls, especially elastic structure in medial layer. As the major structural protein of aorta, elastin contributes to the extensibility and elastic recoil of the vessels. We hypothesized that overexpression of elastin in vessel walls might regenerate the elastic structure of ECM, restore the elastic structure of the aneurysmal wall, and eventually lead to a reduction of aortic diameters (ADs) in an experimental model of AAA.</p><p><b>METHODS</b>Tropoelastin (TE) of Sprague Dawley (SD) rat was synthesized by reverse transcription polymerase chain reaction and used to construct adneviral vectors containing elastin precursor protein (AdTE-GFP). Cultured vascular smooth muscle cells (VSMCs) from aortas of male SD rats were transfected with AdTE-GFP, AdGFP, adenoviral vector (AdNull), and phosphate buffered saline (PBS). Immunofluorescence staining was performed to determine the expression of elastin in transfected cells. The expression of elastic fibers in ECM of VSMCs transfected with AdTE-GFP were detected by fluorescence microscopy and transmission electron microscopy (TEM) at 1, 3, and 5 days following gene transfer. The AAA vessel walls were infused with AdTE-GFP or an empty AdNull, or PBS directly into the aneurysmal lumen. ADs of the aneurysms were compared in infused aortas. Formation of new elastic fibers in vivo was assessed by hematoxylin and eosin, and elastic von-Giesson staining. Recombinant elastin-GFP in vivo was identified by immunohistochemical staining.</p><p><b>RESULTS</b>Elastic fibers were increased both in ECM of VSMC and in vessel walls after gene transfer. Histological studies revealed that the AdTE-GFP-transduced aortas had elastic fiber regeneration in the aneurysmal walls. The AdTE-GFP-transduced aortas showed a decreased AD (23.04% ± 14.49%, P < 0.01) in AAA vessel walls.</p><p><b>CONCLUSIONS</b>Elastic fibers have been successfully overexpressed both in vitro and in a rat model of AAA by a technique of gene transfer. The overexpression of elastic fibers within the aneurysmal tissue appeared to reverse the aneurysm dilatation in this model.</p>

Development of regulation strategy questionnaire of sea-going seafarers' negative emotion / 中华行为医学与脑科学杂志

Objective To study the negative emotion regulation of sea-going seafarers,establish a regulation strategy questionnaire of sea-going seafarers' negative emotion and examine its reliability and validity.Methods Based on open-ended questionnaires and previous researches,the initial questionnaire was obtained.Randomly selected 188 sea-going seafarers,by adopting program analysis and factor analysis,the final questionnaire was determined.Tested 121 sea-going seafarers by using the final questionnaire,while 55 of them by using coping style questionnaire at the same time.After two weeks,47 of them were tested by final questionnaire again.The reliability and validity of the questionnaire were investigated during the research,and the criterion validity between the coping style questionnaire and regulation strategy questionnaire of sea-going seafarers' negative emotion was also studied.Results The factor analysis results showed that the questionnaire was composed of seeking for support,abreaction,inobservance,transfer and oppression.Cronbach α of each factors was 0.857,0.841,0.825,0.806,0.754 respectively;and Cronbach o of the entire questionnaire was 0.873.The split-half correlation coefficients were 0.697,-0.839 (P ＜ 0.01) ; test-retest reliability coefficients were 0.706,-0.822 (P ＜ 0.01).The correlation between subscales were-0.031,-0.459 ; and the correlation between subscales and total scale were 0.590,-0.806 (P ＜ 0.01).Criterion validity showed that despite for the abreaction,each factor was significantly correlated with the factors of coping style questionnaire.Conclusion The sea-going seafarers' negative emotion regulation strategy questionnaire has acceptable psychometrics properties on reliability and validity.