Objective To study the protective effects of the polyphenols of vitis amurensis Rupr(PVAR) on rat heart mitochondria injury induced by oxygen radicals.Methods Experiment was designed into 5 groups:normal group,injury group and 25,50,100 mg?L-1PVAR+injury group.In experiment of rat heart mitochondria injury in vitro,vitamin C and FeSO4 played as an injury agent,PVAR played as a protective agent.The cardiolipin and MDA level of the mitochondria were determined.The membrane fluidity,ATPase activity and swelling of the mitochondria were examined.Results Compared with injury group,the cardiolipin was increased(P

Objective • To investigate the current status of self-perceived burden of the patients with non-Hodgkin's lymphoma (NHL) and analyze the related factors. Methods • A total of 169 NHL patients who were hospitalized in Ruijin Hospital, Shanghai Jiao Tong University School of Medicine from Jan. to Oct., 2019, and their caregivers were enrolled by convenience sampling method. The general information questionnaire, Social Support Rating Scale (SSRS), Self-rating Depression Scale (SDS), Zarit Caregiver Burden Interview (ZBI) and Self-perceived Burden Scale (SPBS) were used to investigate, and the factors related to the score of SPBS were analyzed. Results • The average score of SPBS was 28.95±11.27, while the score of economic burden was the highest (3.13±1.37). Multiple regression analysis suggested that the family income per month per person (P=0.001), Karnofsky performance status (KPS) (P=0.027), SDS score (P=0.006) and ZBI score (P=0.000) were associated with the SPBS score in the NHL patients. Conclusion • The overall selfperceived burden in the patients with NHL is mild-to-moderate, but the economic burden is not neglectable. Low monthly income, poor ability of self-care, depressive symptoms and heavy burden of caregivers can aggravate the self-perceived burden of the patients with NHL.

The incidence of septic acute kidney injury (AKI) is increasing, it has become a major threat to human health because of its acute onset, poor prognosis, and high hospital costs. The most common cause of AKI in critical-care units is sepsis. Septic AKI is a complex and multi-factorial process; its pathogenesis is not fully understood. In sepsis, the destruction of mucosal barriers, intestinal flora disorders, intestinal ischemia/reperfusion injury, use of antibiotics, and lack of intestinal nutrients lead to an inflammatory reactions that in turn affects the metabolism and immunity of the host. Such changes further influence the occurrence and development of AKI. New technology is enabling various detection methods for intestinal flora. Clinical application of these methods in septic renal injury is expected to clarify the relationship among pathogenesis, disease progression mechanism, and intestinal flora.

OBJECTIVETo discuss the urine biomarkers in 1,3-butadiene exposed workers, and to provide basement for establishing biological limit value.

METHODS44 BD exposed workers as exposure group and 25 BD non-exposed people as control group including 12 workers in boiler workshop in the same factory and 13 people in one public institute, we collected their in-end-of shift urine, then detected urine BD-derived mercapturic metabolites [3,4-dihydroxybutyl mercapturic acid (DHBMA),1- and 2-monohydroxy-3-butenyl mercapturic acid (MHBMA)] concentrations using UPLC-MS/MS method. Meanwhile, we detected air BD concentration with GC-FID in the workplace, and compared their relationship.

RESULTSlgDHBMA and lg (MHBMA + DHBMA) levels in exposed group (lgDHBMA: 2.51 ± 0.44) µg/L, lg [MHBMA + DHBMA: (2.68 ± 0.27) µg/L] were higher than which in control group (lgDHBMA: (2.20 ± 0.25) µg/L, lg(MHBMA + DHBMA: (2.49 ± 0.34) µg/L), and the differences were significant (P < 0.01). Urine DHBMA was obviously influenced by air BD concentrations (r = 0.539, P = 0.001). The equation of Multiple Regression Analysis was y = 2.417 + 0.520x (x represents air BD dose, and represents urinary DHBMA level). Adjusted R(2) of this model was 0.262. Urinary MHBMA was not affected by smoking, alcohol and years of works.

CONCLUSIONUrine metabolite DHBMA in BD-exposed workers might be major biological exposure indice.

Adult ; Biomarkers ; urine ; Butadienes ; Female ; Humans ; Male ; Middle Aged ; Occupational Exposure ; adverse effects ; Surveys and Questionnaires

Objective: To explore the effects of application of Plato analysis combined with plan-do-check-action (PDCA) cycle in scientific research management of nurses with primary position title. Methods: Twenty-six nurses with primary position title were recruited in this self pre- and post-control study. From January 2012 to December 2013, they were guided by normal scientific research management. In January 2014, the factors which hinder these nurses from writing papers were investigated by the questionnaire titled " the impediments that hinder nurses with primary position title from writing papers" . Based on " twenty-eighty percent laws" of Plato analysis method, the main influencing factors which hinder nurses with primary position title from writing papers were " had no idea" and " did not know how to write although with ideas" . From January 2014 to December 2015, based on the results of the survey and combined with PDCA cycle method, interventions were planned, carried out, analyzed by stage, and then improved continuously. Impediments which hinder writing papers of 26 nurses in January 2014 and December 2015, specific scientific research achievement, total scientific research achievement, and average scientific research achievement of these 26 nurses before intervention (from January 2012 to December 2013) and after intervention (from January 2014 to December 2015) were analyzed. Data were processed with McNemar exact probability test, Wilcoxon signed rank sum test. Results: (1) The cumulative percentages of main impediments " had no idea" and " did not know how to write although with ideas" were decreased from 76.93% in January 2014 to 23.07% in December 2015. The number of nurses who " had no idea" was significantly reduced from 14 in January 2014 to 4 in December 2015 (P<0.01). The total number of nurses who had impediments which hinder writing papers was significantly reduced from 26 in January 2014 to 10 in December 2015 (P<0.01). (2) The total scientific research achievement and average scientific research achievement of the 26 nurses were significantly increased from 5 before intervention to 32 after intervention and 0.19 before intervention to 1.23 after intervention, respectively (Z=-4.838, -3.703, P<0.01). Among which, numbers of specific scientific research achievement of papers published in Journals of Statistic Source, papers published in other journals, science and technology awards, fund projects, national utility model patents, and patents for invention after intervention were all increased than those before intervention (P<0.05 or P<0.01). Conclusions Plato analysis can accurately analyze the main impediments that hinder nurses with primary position title from writing papers. Plato analysis combined with PDCA cycle can improve the overall ability of scientific research of nurses with primary position title and affect the achievements in nursing scientific research, which is worthy of promotion.

BACKGROUND: Previous studies on whether or not levosimendan improved the prognosis of patients with sepsis and septic shock have been inconsistent. We aimed to provide an updated analysis of the therapeutic value of levosimendan in adult patients with sepsis and septic shock, in order to provide evidence-based medical evidence for its use. METHODS: PubMed, Embase, Cochrane Library, Wanfang Data, and CNKI were searched until August 2018 without language restriction. Randomized controlled studies of levosimendan with either inotropic drugs or placebo for the treatment of sepsis or septic shock were enrolled. The primary outcome was mortality, and cardiac index and serum lactate levels were the secondary outcomes. RESULTS: A total of 20 randomized controlled studies were included in this meta-analysis, including 1467 patients, with 738 patients in the experimental group (levosimendan group) and 729 patients in the control group (other inotropic drugs or placebo). There were no significant differences in mortality between the levosimendan and control groups (fixed-effect relative risk [RR] = 0.90, 95% confidence interval [CI] [0.79, 1.03], P = 0.13). Levosimendan increased the cardiac index (VMD [weighted mean difference] = 0.51, 95% CI [0.06, 0.95], P = 0.02); and serum lactate levels were lower (VMD = -1.04, 95% CI [-1.47, -0.60], P < 0.00001). CONCLUSIONS Based on current clinical evidence, levosimendan does not reduce mortality in adult critically ill patients with sepsis and septic shock. Physicians should use levosimendan with caution in patients with sepsis and septic shock.

OBJECTIVETo search for the optimal approach for hepatocyte-directed differentiation of hepatic progenitor cells and investigate the molecular mechanism of the hepatic differentiation.

METHODSHepatic progenitor cells were infected with recombinant adenovirus which containing human LIF, BMP2 or BMP9 gene. The maturation and differentiation of progenitor cells were examined by PAS staining and ICG uptake methods at 4, 7 and 10 days post infection. The production of Albumin (Alb) was measured by luciferase activity at day 4, 7, 10 and 14.

RESULTSPAS staining assay revealed that BMP2 and BMP9 enhanced glycogen storage in hepatic progenitor cells most obviously at day 7. The percentages of positive cells were 30% and 45% respectively at 7 days post-infection. Meanwhile, 40% and 30% cells were positive by ICG uptake assay after BMP2 and BMP9 induction. Luciferase activity indicated that BMP9 induced ALB-Luc activity most significantly at day 7. However, less inductive activity was found in LIF-treated group.

CONCLUSIONThese results indicated tuat hepatic progenitor cells were differentiated into hepatocyte-like cells by BMPs and LIF induction.

Adenoviridae ; Bone Morphogenetic Proteins ; pharmacology ; Cell Differentiation ; Cells, Cultured ; Hepatocytes ; cytology ; metabolism ; virology ; Humans ; Leukemia Inhibitory Factor ; pharmacology ; Stem Cells ; cytology ; metabolism ; virology

Objective To explore the feasibility and evaluate the teaching effect of case-based multidisciplinary team teaching mode in clinical practice teaching of gynecology.Method According to different grade,120 students were divided into experimental group and control group (60 students per group).The teaching content contained three malignant tumor cases,which were cervical cancer,endometrial cancer and ovarian cancer.The course needed 12 periods totally.The experimental group received multidisciplinary team (MDT) teaching mode,and the control group received traditional lecture-based learning teaching mode (LBL).Teaching effect evaluation and test scores would be analyzed at the end of teaching.SPSS19.0 was used for t test and chi-square test.Results Our results showed that the theory test scores,practical skills test scores,the paperwork scores and the total scores of the students in MDT group were significantly higher than those in the traditional group (P＜0.05).At the same time,the students' self-evaluation scores in the ability of information retrieval,acquisition,understanding,comprehensive and the ability of self-learning,learning interest,enthusiasm and teamwork were significantly higher than the traditional group (P＜0.05).Conclusion MDT teaching mode is feasible,which can improve teaching effect and students' quality,and is worthy of advocating and popularization.

Objective To study the relaxed effect of Cynomorium songaricum Rupr (CS) on the detrusor muscle strip tension in rats.Methods Detrusor muscle strips of rats were isolated.The effects of the CS extract and its active ingredients on the potassium chloride (KCl) or acetylcholine (Ach) induced-contraction of detrusor muscle strip were investigated in vitro respectively.Results Both KCl and Achsignificantly induced spontaneous contraction of bladder detrusor muscle strips,and CS extract inhibited both KCl and Ach-induced contraction in a dose-dependent manner.The maximum relaxation ratios of CS in response to KCl and Ach were (23.34 ± 2.40) ％ and (25.42 ± 5.53) ％ respectively at the concentration of 1 × 10-2g · mL-1.Its active ingredient Luteolin (LUT),Epicatechin (EPI) and Epigallocatechin gallate (ECG) also inhibited KCl-induced contraction of bladder detrusor muscle strips,and the relaxation ratios were (19.31 ±7.19)％,(19.03 ±6.86)％ and (21.22 ± 10.89) ％,respectively.Conclusion CS could relieve detrusor tension in bladder,in which LUT,EPI and ECG are involved.

Objective: To analyze the clinical characteristics of patients with Mucopolysaccharidosis ⅣA (MPS ⅣA). Methods: A retrospective study was conducted on 111 patients with MPS ⅣA in Xinhua Hospital of Shanghai Jiao Tong University School of Medcine from December 2008 to August 2020, confirmed by enzyme activity and genetic testing. General situation, clinical manifestations and enzyme activity test results were analyzed. According to the clinical manifestations, it can be divided into severe, intermediate and mild group. The independent sample t test was used to compare the birth body length and weight of children with that of normal boys and girls, and group comparisons of enzyme activities were evaluated by median test. Results: One hundred and eleven unrelated patients, 69 males and 42 females, were classified into 3 subtypes: severe (n=85), intermediate (n=14), and mild (n=12). The age at symptom onset were 1.6 (1.0, 3.0) years, and at diagnosis were 4.3 (2.8, 7.8) years. Skeletal manifestations were observed in all patients and consisted mainly of pectus carinatum (96/111, 86.5%), motor dysfunction (78/111, 70.3%), spinal deformity (71/111, 64.0%), growth retardation (64/111, 57.7%), joint laxity (63/111, 56.8%) and genu valgum (62/111, 55.9%). Eighty-eight patients (88/111, 79.3%) with MPS ⅣA were also along with non-skeletal manifestations, mainly including snoring (38/111, 34.2%), coarse faces (34/111, 30.6%), and visual impairment (26/111, 23.4%). The most common skeletal manifestation was pectus carinatum (79 cases), and non-skeletal manifestation was snoring (30 cases) and coarse faces (30 cases) in severe patients, pectus carinatum (13 cases) and snoring (5 cases) in intermediate type, motor dysfunction (11 cases) and snoring (3 cases) and visual impairment (3 cases) in mild patients. The height and weight of severe patients began to fall below -2 s at 2-<5 years and 5-<7 years, respectively. At the age of 10-<15 years, the standard deviation score of the height of severe patients reached (-6.2±1.6) s in males and (-6.4±1.2) s in females, and the score of weight got (-3.0±1.1) s in males and (-3.5±0.5) s in females. The height of intermediate patients began to fall below -2 s at the age of 7-<10 years, and the standard deviation score of height were -4.6 s and -3.6 s in 2 males, and -4.6 s and -3.8 s in 2 females at the age of 10-<15 years. The weight remained within -2 s in 72.0% (18/25) of intermediate patients compared to age-matched healthy children. In the mild patients with MPS ⅣA, the mean standard deviation score of height and weight was within -2 s. The enzyme activities of mild patients (2.02 (1.05, 8.20) nmol/(17 h·mg)) were both significantly higher than that of intermediate (0.57 (0.47, 0.94) nmol/(17 h·mg)) and severe (0.22 (0, 0.59) nmol/(17 h·mg)) patients (Z=9.91, 13.98, P=0.005, 0.001), and the enzyme activity of intermediate patients was significantly higher than that of severe patients (Z=8.56, P=0.010). Conclusions: The clinical manifestations of MPS ⅣA are charactered by pectus carinatum, motor function impairment, spinal deformity and growth retardation. The clinical characteristics, growth rate and enzyme activity differ among the 3 subtypes of MPS ⅣA.
Male ; Child ; Female ; Humans ; Adolescent ; Mucopolysaccharidosis IV ; Pectus Carinatum ; Retrospective Studies ; Snoring ; China ; Mucopolysaccharidoses ; Growth Disorders ; Vision Disorders