Pulmonary vascular remodeling is the core pathological feature in the onset and pro-gression of pulmonary arterial hypertension(PAH).Currently,there is no well-defined therapeutic strategy that can effectively delay or reverse this process.Despite the widespread clinical application of targeted vasodilator drugs,patients still face a high risk of mortality and adverse cardiovascular e-vents,suggesting an urgent need to explore new pathological mechanisms and therapeutic targets.In recent years,the relationship between dyslipidemia and PAH has garnered increasing attention.This article aimed to review the role of lipid metabolism disorders in pulmonary vascular remodeling in pul-monary arterial hypertension and its underlying mechanism,with the hope of providing new interven-tion targets for the treatment of PAH,thereby improving patient survival rates and quality of life.

Objective To investigate the relationships of the expression of interferon-induced protein 27(IFI27)and dynamin 3(DNM3)with angiogenesis and platinum-resistant recurrence in epithelial ovarian cancer(EOC).Methods A prospective cohort study design was adopted,and 129 EOC patients scheduled for surgery combined with platinum-based chemotherapy were enrolled as the study subjects.Cancerous tissues and adjacent non-cancerous tissues were collected from the pa-tients.The expression levels of IFI27 mRNA and DNM3 mRNA in the tissue samples were detected using real-time fluorescence quantitative polymerase chain reaction(qRT-PCR).The expressions of angiogenesis markers,microvascular density(MVD)and vascular endothelial growth factor(VEGF),were detected by immunohistochemistry(IHC).After surgery,the patients received standard platinum-based chemotherapy regimen.They were regularly followed up for recurrence and divided into platinum-resistant group and platinum-sensitive group.The associations of the expressions of IFI27 and DNM3 with platinum-resistant recurrence were analyzed.Results All 129 patients completed surgery combined with chemotherapy.Forty-nine patients with chemotherapy-resistant recurrence were included in platinum-resistant group,and the remaining 80 patients were included in platinum-sensitive group.There was a significant difference in the degree of differentiation between the two groups(P=0.001).The expression level of IFI27 mRNA in cancerous tissues was higher than that in adjacent non-cancerous tissues,while the expression level of DNM3 mRNA was lower than that in adjacent non-cancerous tissues.The expression levels of MVD and VEGF were higher than those in adjacent non-cancerous tissues,with statistically significant differences(P＜0.001).In the plati-num-resistant group,the expression level of IFI27 mRNA was higher than that in the platinum-sensi-tive group,the expression level of DNM3 mRNA was lower than that in the platinum-sensitive group,and the expression levels of MVD and VEGF were higher than those in the platinum-sensitive group,with statistically significant differences(P＜0.05 or P＜0.001).Pearson correlation analy-sis showed that the expressions of VEGF and MVD in EOC patients were positively correlated with the expression of IFI27(r=0.643,0.765,P＜0.05),respectively,and negatively correlated with the expression of DNM3(r=-0.573,-0.632,P＜0.05),respectively.Low degree of differen-tiation and high expression of IFI27 were independent risk factors for platinum-resistant recurrence in EOC patients(P＜0.05),while high expression of DNM3 was an independent protective factor(P＜0.05).The receiver operating characteristic curve showed that the area under the curve(AUC)for the combined prediction of platinum-resistant recurrence in EOC patients by IFI27 and DNM3 was 0.863,which was greater than the AUCs for their individual indicators(0.815,0.704).Conclusion High expression of IFI27 and low expression of DNM3 are significantly asso-ciated with angiogenesis and platinum-resistant recurrence in EOC.Their combined detection has a high predictive efficacy for platinum-resistant recurrence in EOC patients within one year.

Sepsis is a multi-organ dysfunction syndrome caused by infection and immune dysfunction, with a high mortality rate. It affects multiple important organs such as the heart, lungs, kidneys, liver, and brain. Establishing corresponding animal models of organ dysfunction syndrome is an essential step in clarifying its pathogenesis, researching potential effective drugs, and evaluating the effectiveness and safety of treatment plans. This article first summarizes classic modeling methods for sepsis related organ injury, including the destruction of intestinal barrier tissue integrity and the implantation of pathogens or toxic drugs. The former mainly includes cecal ligation and puncture, ascending colon stent implantation, and cecal ligation incision. The latter is divided into intraperitoneal injection, intravenous injection, and intratracheal administration based on the clinical infection route being simulated. Cecal ligation and puncture and lipopolysaccharide intraperitoneal injection are the most commonly used methods. Secondly, this article summarizes the common modeling methods and evaluation methods for animal models of sepsis-induced cardiomyopathy, acute lung injury, acute kidney injury, acute liver injury, and brain dysfunction. It points out that almost all organ injuries use classic modeling methods, and different organ injury models have additional modifications according to their different pathogenesis. For example, in addition to the classic modeling methods, lipopolysaccharide instillation in the trachea is more effective in modeling acute lung injury as it better simulates lung barrier dysfunction. Cecal ligation and puncture followed by Pseudomonas instillation in the trachea in a secondary challenge model better represents sepsis-induced acute kidney injury. Intraperitoneal injection of galactosamine is a mature modeling method of sepsis-induced acute liver injury. Intracerebral injection of lipopolysaccharide is a feasible model of sepsis-associated encephalopathy. In addition to the different modeling methods, there are differences in the administration time, dosage and experimental time points according to the different experimental purposes. This article reviews the research progress of animal experimental models for sepsis-induced cardiomyopathy, acute lung injury, acute kidney injury, acute liver injury, and brain dysfunction, aiming to provide a reference for the selection of animal experimental models and optimization of experimental design.

Objective:To investigate the impact of simulator-multidisciplinary treatment (MDT)-problem-based learning (PBL) integrated teaching on the quality of clinical internship teaching in the Gynecology Department.Methods:A retrospective analysis was conducted on the data of 86 clinical interns in the Gynecology Department who completed one month of internship at Xijing Hospital, Air Force Medical University from May 2021 to May 2022. The interns who received routine teaching from May to October 2021 were enrolled into control group ( n=43), and those who received simulator-MDT-PBL integrated teaching from November 2021 to May 2022 were enrolled into observation group ( n=43). The two groups were compared for differences in professional abilities (measured by Readiness for Interprofessional Learning Scale [RIPLS]), humanistic care ability (measured by humanistic care ability scale), critical thinking ability (measured by critical thinking disposition inventory-Chinese version [CTDI-CV]), and autonomous learning ability (measured by college student autonomous learning scale) after one month of teaching. The chi-square test and t-test were conducted using SPSS 19.0. Results:The two groups showed significantly increases in RIPLS scores [team collaboration: (38.45±6.72) vs. (36.39±5.65); professional identity: (28.11±5.85) vs. (26.43±5.33); role responsibilities: (10.83±1.24) vs. (9.52±1.46)], humanistic care ability scale scores [understanding: (68.73±8.15) vs. (61.55±8.93); patience: (53.45±6.03) vs. (49.57±6.74); encouragement: (56.83±7.24) vs. (52.75±7.46)], and all dimensions of CTDI-CV scale and college student autonomous learning scale, with all scores higher in the observation group than in the control group (all P<0.05). Conclusions:The simulator-MDT-PBL integrated teaching can help improve the professional ability, humanistic care ability, critical thinking ability, and autonomous learning ability of clinical interns in the Gynecology Department, thus improving the quality of clinical internship teaching in the Gynecology Department.

Objective:To develop adjustable peel force tester with peel angle from 0° to 180°,so as to realize the test for the performance of interface adhesion of wearable electronic products under multi angles.Methods:The rotating platform of angle adjustment component was used to realize free adjustment of peel angle from 0° to 180°.A method of peel test procedure based on the peel force tester with full-angle was established,and the comparative experiment between that and tensile testing machine was conducted.The peel tests of various kinds of wearable electronic products were conducted under peel angle of 45°,90° and 180°.Results:The test results of the peel force tester with full-angle were consistent with those of the tensile testing machine,which function opposed reliability.The peel test results of more than 10 wearable electronic products indicated that the peel force tester with full-angle could effectively determinate the performance of interface adhesion.Conclusion:The peel force tester with full-angle can effectively appear the performance of the interface adhesion of wearable electronic products,which provides basis for establishing the standard of peel test of wearable electronic products.

Objective:To evaluate the application effect of the "group-based" teaching assistant (TA) guidance model in homogenized clinical skill training.Methods:A pilot study was conducted on the cardiopulmonary resuscitation training course, and 32 students majoring in clinical integrative Chinese and Western medicine (five-year program) who were admitted to Shanghai University of Traditional Chinese Medicine in 2018 were randomly divided into control group ( n = 16) and TA group ( n = 16). The control group received traditional teaching methods, and the TA group was further divided into subgroups A, B, C, and D, with four graduate TAs providing group-based teaching. The groups were compared in terms of their satisfaction and test scores. SPSS 25.0 was used for t-test and analysis of variance. Results:The satisfaction survey showed that compared with the control group, the TA group had significantly higher degree of satisfaction with the increased practical opportunities, clinical skill practical ability, learning effect, and overall satisfaction. The immediate test showed that there was no significant difference in test score between the TA group (85.19±2.93) points and the control group (82.75±4.52) points. The test 30 days later showed that the TA group (83.50±5.13) points had a significantly higher test score than the control group (74.68±3.87) points, and the control group had a significantly lower test score than that in the immediate test ( P <0.001); however, there was no significant difference in the TA group's score between the immediate test and the test 30 days later. Conclusion:The "group-based" TA guidance model has a good effect in homogenized clinical skill training, and has a stable long-term effect, with high student satisfaction.

Objective:To explore the facilitators and barriers of weight self-management (WSM) in breast cancer patients, so as to provide reference for WSM intervention in breast cancer patients.Methods:This study was a descriptive qualitative study. From July to October 2021, 17 patients with breast cancer admitted to the Affiliated Hospital of Hebei University were selected as research objects by purposive sampling. Semi-structured interviews were conducted with patients. The data were analyzed by thematic analysis.Results:Two themes of WSM facilitators and barriers of breast cancer patients were extracted. Facilitators included three subthemes, namely: correct personal perception, positive self-regulation, positive social influence and social support. Barriers were composed of five subthemes, namely: lack of knowledge and skills, negative emotions, unhealthy living habits, role conflicts, limited physical functions.Conclusions:Medical and nursing staff should strengthen WSM health education for breast cancer patients, improve their awareness of WSM, self-regulation ability and symptom self-management, encourage them to exercise moderately, so as to promote the WSM level of breast cancer patients.

Objective:To evaluate the effect of pectoral nerve block type Ⅱ combined with esketamine on anxiety and depression in the patients with breast cancer undergoing modified radical mastectomy under general anesthesia.Methods:Eighty-four female patients, aged 18-64 yr, of American Society of Anesthesiologists physical status Ⅰor Ⅱ, with body mass index of 18-25 kg/m 2, undergoing elective first-time modified radical mastectomy for unilateral breast cancer, were divided into 2 groups ( n=42 each) using a random number table method: routine group (R group) and pectoral nerve block type Ⅱ combined with esketamine group (PS group). Sufentanil was used for anesthesia induction and postoperative patient-controlled intravenous analgesia (PCIA) in group R, esketamine was used for anesthesia induction and postoperative PCIA, and type Ⅱ thoracic nerve block was performed under ultrasound guidance after anesthesia induction in group PS, and the rest of the drugs used were the same in both groups.The observer′s assessment of awareness/sedation scale score was recorded at the end of surgery, 30 min after the end of surgery, and at 6, 12 and 24 h after surgery.The Hospital Anxiety and Depression Scale was used to assess patients′ anxiety and depression at 1 day before surgery and at discharge.The intraoperative consumption of anesthetics, emergence time, postanesthesia care unit stay time, pressing times of PCIA, requirement for rescue analgesia, hospital costs, length of postoperative hospital stay, satisfaction scores of surgeons and patients were recorded at discharge.The occurrence of adverse reactions was also recorded after operation. Results:Compared with group R, the observer′s assessment of awareness/sedation scale score were significantly increased at the end of surgery and 30 min after surgery, the consumption of propofol and remifentanil was decreased, the emergence time and postanesthesia care unit stay time were shortened, the incidence of nausea and vomiting was decreased, the Hospital Anxiety and Depression Scale score was decreased at discharge, the incidence of anxiety and depression was decreased, the satisfaction scores of surgeons and patients were increased, and the length of postoperative hospital stay was shortened in group PS ( P<0.05). Conclusions:Pectoral nerve block type Ⅱ combined with esketamine can optimize the efficacy of anesthesia and relieve early postoperative anxiety and depression in the patients undergoing modified radical mastectomy for breast cancer under general anesthesia.

Objective:To explore the body image of young breast cancer patients and analyze its influencing factors.Methods:This study is a cross-sectional survey. Using the convenient sampling method, a total of 315 young breast cancer patients who were hospitalized in a ClassⅢ Grade A cancer hospital from March to May 2021 were selected as the research objects. The patients were investigated by general information questionnaire, Body Image Self-rating Questionnaire for Breast Cancer (BISQ-BC) and Medical Coping Modes Questionnaire (MCMQ) . Pearson correlation was used to analyze the correlation among variables. Multiple linear regression was used to analyze the influencing factors of body image in young breast cancer patients. A total of 315 questionnaires were sent out and 310 were effectively received, with effective recovery rate of 98.4% (310/315) .Results:The body image score of 310 young breast cancer patients was (3.03±0.58) . Univariate analysis showed that education level, family residence, per capita monthly income of the family, clinical stage, postoperative time, chemotherapy, radiotherapy, endocrine therapy and BMI were the influencing factors for the body image of young breast cancer patients ( P<0.05) . Acceptance-resignation and avoidance responses were positively correlated with the body image mean and each dimension score of breast cancer patients ( P< 0.01) , while the Confrontation was negatively correlated with the body image mean and each dimension score of breast cancer patients ( P<0.01) . The results of multiple linear regression analysis showed that educational level, clinical stage, body mass index, chemotherapy, endocrine therapy, acceptance-resignation and avoidance and confrontation were the influencing factors of body image in young breast cancer patients (adjusted R2=0.759, F=122.826, P<0.01) . Conclusions:There is a certain degree of body image distress in young breast cancer patients, and education level, clinical stage, body mass index, chemotherapy, endocrine therapy, acceptance-resignation and avoidance and confrontation of patients are closely related to the body image. In clinical practice, reasonable intervention programs should be formulated according to influencing factors to improve body image status.

To explore the clinical efficacy and possible mechanism of Tai Ji Quan for post-stroke depression (PSD), literature related to Tai Ji Quan and PSD were retrieved from China National Knowledge Infrastructure (CNKI), Wanfang Academic Journal Full- text Database (Wanfang), Chongqing VIP Database (CQVIP), China Biology Medicine Disc (CBM), and PubMed, screened and then summarized. The results showed that Tai Ji Quan could effectively improve the depression and quality of life of stroke patients, and there were differences in the clinical efficacy among different training programs. Tai Ji Quan has the characteristics of "regulating mind", "regulating breath", and "regulating body". It may achieve the effect of "combined physique-spirit treatment" by improving social psychology, increasing the level of neurotrophin, regulating neuroendocrine, reducing inflammatory factors, and regulating neural circuits.