Experimental course for integrative life science curriculum is designed for medical students ,which integrates basic knowledge and skills of cellular biology,biochemistry,genetics,molec-ular biology,molecular genetics,and immunology disciplines. Tongji University School of Medicine start-ed to implement integration-based new curriculum system since 2010. This article discussed on teaching philosophy,teaching content,teaching methods,teaching team construction and explored the effect and significance of experimental course for integrative life science curriculum.

Objective: To investigate the predictive value of an early inflammatory response factor, Rho kinase activity for left ventricle remodeling (LVR) in patients with acute ST-segment elevation myocardial infarction (STEMI).
Methods: A total of 120 acute STEMI patients treated in our hospital from 2010-10 to 2013-06 were studied, all patients were ifrst time received primary percutaneous coronary intervention (PCI) with stent implantation. Rho kinase activity and B-type natriuretic peptide (BNP) were measured before PCI, echocardiography was conducted at 24 hours and 12 months after STEMI respectively to clarify LVR diagnosis. The patients were divided into 2 groups as LVR group, n=97 and Non-LVR group, n=23, the above indexes were compared between 2 groups.
Results: The level of Rho kinase was higher in LVR group than that in Non-LVR group, P<0.001, after adjustment, Rho kinase was the independent predictor for LVR (OR 3.36, 95%CI 2.01–5.78, P<0.001). The ROC of Rho kinase was 0.88 (95%CI 0.82–0.94) and the ROC of BNP was 0.54 (95%CI 0.41–0.70).
Conclusion: High Rho kinase activity could predict LVR in acute STEMI patients with primary PCI and stent implantation.

Objective To examine the reliability and validity of the Connor-Davidson Resilience Scale (CD-RISC) in nurses in China.Methods Item analysis and confirmatory factor analysis of CD-RISC was conducted.A total of 1 084 nurses were randomly divided into 2 groups using random number table.One group was used to revise CD-RISC and the other to evaluate its reliability and validity.Results Confirmatory factor analysis of the original RSA showed thatx2/df,RMSEA,GFI,AGFI,CFI were 6.714,0.103,0.804,0.764,and 0.718,respectively.The number of item was reduced to 21 based on exploratory factor analysis results,including three factors which explained 54.034％ of the total variance.Factor loading ranged from 0.490 to 0.755.Coefficient of internal consistency ranged from 0.688 to 0.930 and the 4 week test-retest reliabilities ranged from 0.825 to 0.917.The factor scores were closely correlated with the total scores with correlation coefficient ranging from 0.683 to 0.943.The factors were closely correlated with each other with correlation coefficient ranging from 0.564 to 0765.The confirmatory factor analysis of the revised CD-RISC showed that x2/df,RMSEA,GFI,AGF,CFI were 3.304,0.065,0.902,0.878,and 0.913 respectively.The total scores and all factors were negatively correlated with depression and anxiety and somatization.Conclusions The revised CD-RISC has good psychometric properties and can be used to measure the resilience of nurses.

Heart is the first organ to function during mammalian embryogenesis. The differentiation of embryonic stem cells (ESCs) into cardiomyocyte is complex and dynamic, which involves 4 differentiation stages including ESCs, mesoderm, cardiac precursor, and terminal cardiomyocytes. Abnormal expression of certain genes can lead to congenital heart diseases during cardiomyocyte differentiation. Epigenetic regulation plays a crucial role on the switch of gene activation and deactivation during cardiomyocyte differentiation. Non-coding RNA, particularly microRNA and long non-coding RNA, may significantly influence gene expression. Exploring the regulatory roles of non-coding RNA in cardiomyocyte differentiation may contribute to the understanding of the functions of myocardial cells and mechanism of congenital heart diseases.
Animals ; Cell Differentiation ; genetics ; Embryo, Mammalian ; physiology ; Embryonic Stem Cells ; physiology ; Epigenesis, Genetic ; genetics ; Humans ; Myocytes, Cardiac ; physiology ; RNA, Long Noncoding ; genetics

Purpose: This study was performed to investigate the association of Glasgow prognostic score (GPS), combined positive score (CPS), and clinicopathological characteristics of locally advanced rectal cancer. Methods: Between February 2012 and February 2018, 103 patients with locally advanced rectal cancer treated by neoadjuvant chemoradiotherapy and total mesorectal excision (TME) were retrospectively evaluated. Results: According to the classification of the GPS, 85 (82.5%), 13 (12.6%), and 5 patients (4.9%) were classified as a score of 0, 1, and 2, respectively. Patients were classified into the GPS-low group (GPS of 0, n = 85) and GPS-high group (GPS of 1 or 2, n = 18) with an area under the curve of 0.582 for overall survival (OS). The mean programmed death-ligand 1 (PD-L1) CPS of the whole group was 2.24 (range, 0–70). The PD-L1 CPS of the GPS-high group was higher than the GPS-low group (P < 0.001). Multivariate analysis by Cox proportional hazards model indicated that GPS was associated with OS and diseasefree survival (DFS). Furthermore, PD-L1 CPS was associated with DFS (hazard ratio, 1.050; 95% confidence interval, 1.017– 1.083; P = 0.003). Conclusion Elevated GPS was related to the PD-L1 CPS. GPS and PD-L1 CPS were associated with the prognosis of locally advanced rectal cancer treated with neoadjuvant chemoradiotherapy followed by TME.

Objective:To analyze the differences in clinical outcomes and toxicities between postoperative radiotherapy alone and postoperative radiochemotherapy for soft tissue sarcoma (STS), as well as the related factors affecting clinical prognosis of STS patients.Methods:Retrospective analysis of patients diagnosed with primary STS admitted to Zhejiang Cancer Hospital from May 2012 to May 2019 was performed, who received adjuvant radiotherapy after surgery, combined with or without postoperative chemotherapy. A total of 100 patients were enrolled and divided into postoperative radiotherapy group ( n=52) and postoperative radiochemotherapy group ( n=48). The median follow-up time was 65 months (24-124 months). The local recurrence-free survival (LRFS), distant metastasis-free survival (DMFS), overall survival (OS), and treatment-related toxicities were recorded in two groups. The survival rate was calculated by Kaplan-Meier analysis. Log-rank test was used for univariate analysis, and Cox model was used for multivariate analysis. Results:In multivariate analysis, the maximum tumor diameter was an independent predictor of local tumor recurrence ( HR=4.80, 95% CI=1.16-19.85, P=0.031), distant metastasis ( HR=4.67, 95% CI=1.53-14.26, P=0.007) and OS ( HR=4.10, 95% CI=1.35-12.48, P=0.013). In addition, the degree of myelosuppression in patients in postoperative radiochemotherapy was significantly higher than that in their counterparts in postoperative radiotherapy group ( P<0.001). Conclusions:In the limited number of patients, radiochemotherapy has no advantages over radiotherapy alone in distant metastasis or survival rate. Besides, it increases toxicities, but the overall tolerability is favorable. It is necessary to conduct prospective randomized studies in a large population and subgroup analysis of histological subtypes, aiming to obtain results with better reference value.

There is currently a huge worldwide demand for donor kidneys for organ transplantation. Consequently, numerous marginal donor kidneys, such as kidneys with microthrombi, are used to save patients' lives. While some studies have shown an association between the presence of microthrombi in donor kidneys and an increased risk for delayed graft function (DGF) (McCall et al., 2003; Gao et al., 2019), other studies have demonstrated that microthrombi negatively impact the rate of DGF (Batra et al., 2016; Hansen et al., 2018), but not graft survival rate (McCall et al., 2003; Batra et al., 2016; Gao et al., 2019). In contrast, Hansen et al. (2018) concluded that fibrin thrombi were not only associated with reduced graft function six months post-transplantation but also with increased graft loss within the first year of transplantation. On the other hand, Batra et al. (2016) found no significant differences in the DGF rate or one-year graft function between recipients in diffuse and focal microthrombi groups. To date, however, the overall influence of donor kidney microthrombi and the degree of influence on prognosis remain controversial, necessitating further research.
Humans ; Thrombotic Microangiopathies ; Transplantation, Homologous ; Tissue Donors ; Kidney ; Allografts

Activation of the heart normally begins in the sinoatrial node (SAN). Electrical impulses spontaneously released by SAN pacemaker cells (SANPCs) trigger the contraction of the heart. However, the cellular nature of SANPCs remains controversial. Here, we report that SANPCs exhibit glutamatergic neuron-like properties. By comparing the single-cell transcriptome of SANPCs with that of cells from primary visual cortex in mouse, we found that SANPCs co-clustered with cortical neurons. Tissue and cellular imaging confirmed that SANPCs contained key elements of glutamatergic neurotransmitter system, expressing genes encoding glutamate synthesis pathway (Gls), ionotropic and metabotropic glutamate receptors (Grina, Gria3, Grm1 and Grm5), and glutamate transporters (Slc17a7). SANPCs highly expressed cell markers of glutamatergic neurons (Snap25 and Slc17a7), whereas Gad1, a marker of GABAergic neurons, was negative. Functional studies revealed that inhibition of glutamate receptors or transporters reduced spontaneous pacing frequency of isolated SAN tissues and spontaneous Ca