Psychological effect of physical function dependence on maintenance hemodialysis patients and their primary family caregivers / 中华肝脏病杂志

Objective: To investigate the psychological effect of physical function dependence on maintenance hemodialysis (MHD) patients and their primary family caregivers. Methods: The study was a cross-sectional survey. The MHD patients in the hemodialysis centre, the Third Affiliated Hospital of Guangzhou Medical University from March 2022 to June 2022 were enrolled. The patients' demographics and laboratory data were collected. Katz and Lawton-Brody questionnaires were used to assess patients' physical function, and Five Item Mental Health Inventory (MHI-5) was used to evaluate the psychological conditions of the patients and their primary family caregivers. Multiple linear regression analysis was used to analyze the influencing factors of MHI-5 scores of the patients and their primary family caregivers. Results: A total of 116 patients were included, with 61 males and 55 females. There were 47 patients (40.5%) with physical function dependence. In the physical function dependence group, serum albumin (t=-2.512, P=0.013), MHI-5 scores of patients and their primary family caregivers (t=-8.461, P < 0.001; t=-8.533, P < 0.001) and male ratio (χ2=8.467, P=0.002) were significantly lower, and the age (t=9.754, P < 0.001) and the proportions of hypertension (χ2=20.421, P < 0.001), diabetes (χ2=10.470, P=0.002), cardiovascular and cerebrovascular diseases (χ2=9.898, P=0.003) were significantly higher than those in the normal physical function group. The incidence of mental disorders in MHD patients was 39.7%(46/116), and the incidence of mental disorders in the physical function dependence group was significantly higher than that in the normal physical function group [72.3%(34/47) vs. 17.4%(12/69), χ2=35.275, P < 0.001]. The incidence of mental disorders in the primary family caregivers was 32.8%(38/116), and the incidence of mental disorders in the primary family caregivers of physical function dependence group was significantly higher than that in the normal physical function group [66.0%(31/47) vs. 10.1%(7/69), χ2=39.536, P < 0.001]. The incidence of mental disorders in the primary family caregivers of MHD patients who were not spouses was significantly higher than that of spouses [46.0%(29/63) vs. 17.0%(9/53), χ2=11.028, P=0.001], and in physical function dependence group, the incidence of mental disorders in non-spouses was significantly higher than that in spouses [80.6%(25/31) vs. 37.5%(6/16), χ2=8.749, P=0.003]. Multiple linear analysis showed that bathing (β=-5.182, P=0.015), doing laundry (β=-7.053, P < 0.001), taking medication (β=-8.680, P=0.003), and female patients (β=-2.982, P=0.030) were the influencing factors of MHI-5 scores decline in MHD patients. Bathing (β=-4.404, P=0.032), preparing meals (β=-3.954, P=0.041), managing money (β=-5.067, P=0.021), and female patients (β=-2.466, P=0.042) were the influencing factors of MHI-5 scores decline in primary family caregivers. Conclusions: The incidence of physical function dependence in MHD patients is high, and its manifestations and influencing factors are diverse. The incidence of mental disorders in MHD patients and their primary family caregivers is also high, especially in patients with physical function dependence and non- spouse family caregivers. Clinicians should pay attention to and assess the physical function dependence of MHD patients as early as possible, and intervene in time. At the same time, they should also pay attention to the mental health of MHD patients and their primary family caregivers.

miR-502-3p regulates the proliferation and apoptosis of colorectal cancer stem cells by targeting GTPBP2 gene / 中国肿瘤生物治疗杂志

@#[摘 要] 目的：探讨miR-502-3p通过靶向GTP结合蛋白2（GTPBP2）调控结直肠癌干细胞（CCSC）增殖、细胞周期和凋亡的分子机制。方法：利用免疫磁珠分选技术从结直肠癌细胞HCT116中分选CCSC（CD133+CD44+双阳性细胞和CD133-CD44-双阴性细胞），用qPCR法检测细胞中miR-502-3p表达水平。利用脂质体转染法分别将miR-NC、miR-502-3p、si-miR-NC、si-miR-502-3p、miR-502-3p+vector和miR-502-3p+GTPBP2转染至CD133+CD44+细胞中，记作miR-NC、miR-502-3p、si-miR-NC、si-miR-502-3p、miR-502-3p+vector和miR-502-3p+GTPBP2组。用qPCR法检测细胞中miR-502-3p、GTPBP2 mRNA表达水平，MTT法、流式细胞术分别检测细胞增殖率、细胞周期和凋亡率，WB法检测细胞中Ki67、CDK1、Bcl2、BAX和GTPBP2蛋白的表达水平。双荧光素酶报告基因实验验证miR-502-3p与GTPBP2基因的靶向关系。结果：CD133+CD44+细胞中miR-502-3p表达水平显著低于CD133-CD44-细胞（P<0.01）。与miR-NC组比较，miR-502-3p组细胞增殖率、S期细胞比例显著降低（均P<0.01），凋亡率、G0/G1期细胞比例显著升高（均P<0.01），细胞中Ki67、CDK1、Bcl2蛋白表达均显著下调（均P<0.01）、BAX蛋白表达显著上调（P<0.01）。miR-502-3p靶向调控GTPBP2的表达，过表达GTPBP2可逆转上调miR-502-3p对CCSC增殖、周期和凋亡的作用。结论：上调miR-502-3p表达抑制CCSC增殖和阻滞细胞周期、诱导凋亡，其作用机制可能与过表达GTPBP2有关。

Significance of circulating tumor cell monitoring in targeted therapy for gastrointestinal stromal tumors / 中华胃肠外科杂志

Objective: To explore the significance of circulating tumor cell (CTC) monitoring in evaluating the efficacy of targeted therapy for gastrointestinal stromal tumor (GIST). Methods: A prospective cohort study was performed. The data of patients with locally advanced GIST or liver metastasis who were admitted to The Affiliated Hospital of Nantong University from August 2013 to December 2018 were collected. Inclusion criteria: (1) patients aged older than 18 years; (2) patients who were diagnosed with GIST based on pathology; (3) patients without surgery, whose preoperative imaging evaluation of GIST found the violations of the surrounding organs or partial transfer of an estimated difficulty to achieve R0 resection, or the maximum diameter of the tumor > 10 cm, or the liver metastasis, or the expectation of higher risk of surgical complications; (4) patients who were treated with the imatinib 400 mg/d for the first time; (5) Eastern Cooperative Oncology Group (ECOG) score of 0-2. Exclusion criteria: (1) genetic testing revealed a D842V mutation in exon 18 of the PDGFRA gene; (2) alanine aminotransferase and/or aspartate aminotransferase > 2.5 times the normal upper limit; (3) serum total bilirubin >1.5 times of normal upper limit; (4) neutrophil count < 1.5×10(9)/L, or platelet count < 75×10(9)/L, or hemoglobin < 60 g/L; (5) creatinine > normal upper limit; (6) patients had serious cardiovascular and cerebrovascular diseases within 12 months before enrollment; (7) female patients were pregnant or lactating; (8) patients suffered from other serious acute and chronic physical or mental problems, and were not suitable for participating in this study judged by researchers. The patients who could not tolerate treatment regimen, or developed serious adverse reactions and did not follow the medication scheme after enrollment were excluded. Before imatinib treatment and 1-month and 2-month after treatment, quantitative PCR was used to detect the DOG-1 expression of monocytes in peripheral blood, and the ratio of DOG-1/β-actin > 3×10(-5) was used as the CTC positive threshold of GIST. The positive rate of CTC, the efficacy of imatinib treatment (complete response, partial response, stable disease, progressive disease, and occurrence of adverse reactions), and the relationship between CTC positive rate and clinicopathological characteristics of patients were analyzed. Furthermore, the ratio of DOG-1 decrease/baseline DOG-1 after 1-month of treatment was used as an indicator to evaluate whether targeted therapy was effective. The receiver operating characteristic (ROC) curve was rendered, and the area under the curve (AUC) was calculated. Results: A total of 68 GIST patients were enrolled in this study, including 39 cases of locally advanced GIST and 29 cases with liver metastases, 32 males and 36 females with the mean age of (51.2±11.8) (range 31 to 74) years. After 2-month of imatinib treatment, 43 cases were evaluated as partial response, 11 cases as stable disease, and 14 cases as progressive disease, with an effective rate of 79.4% (54/68). During the treatment of imatinib, the incidence of grade 3 or higher adverse reactions was 22.1% (15/68), including 12 cases of grade 3 neutropenia and 3 of grade 4 drug eruption, which were all relieved after conservative treatment. The positive rates of CTC in 68 patients before treatment, 1-month and 2-month after treatment were 66.2% (45/68), 41.2% (28/68) and 23.5% (16/68), respectively. The positive rate of CTC was associated with tumor size, liver metastasis, mitotic count and risk level (all P<0.05). By analyzing the effective group and the ineffective group of targeted therapy, it was found that the positive rate of CTC in the effective group showed a decreasing trend, while the positive rate of CTC in the ineffective group showed an increasing trend. The AUC of predicting the efficacy of targeted therapy for GIST was 0.823 by detecting the change trend of CTC 1-month after treatment (P<0.001). When the DOG-1 content decreased by more than 57.5% 1-month after treatment, it can be used as an indicator to judge the effectiveness of the treatment, whose sensitivity was 72.2% and specificity was 100%. Conclusion: The detection of peripheral blood CTC can evaluate the efficacy of targeted therapy in GIST patients and can provide decision-making basis for further clinical treatment.

Analysis of cytogenetic indexes in interventional radiology workers exposed to low dose long-term chronic irradiation / 中国职业医学

OBJECTIVE: To observe the effect of low dose long-term chronic irradiation on chromosome aberration and micronucleus in peripheral blood lymphocytes of interventional radiology workers.METHODS: A total of 100 interventional radiology workers in a grade A tertiary hospital of Henan Province were selected as the interventional group using a convenient sampling method, and 78 healthy individuals without radiation exposure were selected as the control group. The incidence of chromosomal aberration and micronucleus of peripheral blood lymphocytes in individuals of these two groups were investigated. RESULTS: The frequencies of cells with acentric fragment(ace), dicentric chromosome(dic), reciprocal translocation(t), chromosome type aberration and total aberration in the interventional group were higher than those in the control group, and the differences were statistically significant(0.55% vs 0.30%, 0.25% vs 0.03%, 0.38% vs 0.01%, 1.21% vs 0.34%, 1.37% vs 0.54%, all P<0.01). In the interventional group, the frequency of cell with chromosome type aberration was higher than that of chromatid type aberration(1.21% vs 0.16%, P<0.01).The frequency of cell with unstable chromosome aberration was higher than that of stable chromosome aberration(0.80% vs 0.41%, P<0.01), and the frequency of cell with chromosomal type aberrant in the interventional group ranked from high to low in order of ace, t, dic and deletion(P<0.01). The incidence of micronuclear cells and micronucleus in the interventional group were higher than those in the control group(0.86‰ vs 0.40‰, 0.89‰ vs 0.41‰, all P<0.01). The incidence of micronuclear cells and micronucleus of female interventional radiology workers were higher than those of male workers(1.12‰ vs 0.62‰, 1.19‰ vs 0.62‰, all P<0.01).CONCLUSION: Low dose and long-term chronic irradiation exposure can affect both chromosome aberration and micronucleus of interventional radiology workers. The main chromosomal aberrations were non-stable chromosomal aberrations ace, dic and stable chromosomal aberrations t.

Experience of robot-assisted lung segmentectomy through anterior approach / 中国胸心血管外科临床杂志

@#Objective    To evaluate the feasibility and clinical value of robot-assisted lung segmentectomy through anterior approach. Methods    We retrospectively analyzed the clinical data of 77 patients who underwent robotic lung segmentectomy through anterior approach in our hospital between June 2018 to October 2019. There were 22 males and 55 females, aged 53 (30-71) years. Patients' symptoms, general conditions, preoperative imaging data, distribution of resected lung segments, operation time, bleeding volume, number of lymph node dissected, postoperative duration of chest tube insertion, drainage volume, postoperative hospital stay, postoperative complications, perioperative death and other indicators were analyzed. Results    All operations were successfully completed. There was no conversion to thoracotomy, serious complications or perioperative death. The postoperative pathology revealed early lung cancer in 48 patients, and benign tumors in 29 patients. The mean clinical parameters were following: the robot Docking time 1-30 (M=4) min, the operation time 30-170 (M=76) min, the blood loss 20-400 (M=30) mL, the drainage tube time 2-15 (M=4) days, the drainage fluid volume 200-3 980 (M=780) mL and the postoperative hospital time 3-19 (M=7) days. Conclusion    Robotic lung segmentectomy through anterior approach is a safe and convenient operation method for pulmonary nodules.

Short-term effects of Da Vinci robot Nissen fundoplication in the treatment of refractory gastroesophageal reflux disease / 中国胸心血管外科临床杂志

@#Objective    To investigate the short-term effects of Da Vinci robot-assisted Nissen fundoplication in the treatment of refractory gastroesophageal reflux disease (rGERD), and to evaluate the safety and efficacy of its surgical treatment. Methods    A total of 40 patients with rGERD treated by Da Vinci robot-assisted surgery from October 2016 to November 2019 in our hospital were collected. There were 23 males and 17 females at age of 34-76 (61±23) years. The related clinical data were retrospectively analyzed, and the operation skills of Da Vinci robot-assisted Nissen fundoplication with rGERD were summarized. Results    There was no perioperative death or serious complication such as esophagogastric fistula. Postoperative reflux symptoms were significantly improved. DeMeester scores after surgery (39.79±35.01 points vs. 2.61±2.40 points, P=0.029), lower esophageal sphincter pressure (8.74±7.21 mm Hg vs. 24.56±8.76 mm Hg, P=0.020), integrated relaxation pressure (7.29±7.21 mm Hg vs. 16.49±9.99 mm Hg, P=0.023), distal contractile integral (600.49 ± 665.30 mm Hg·s·m vs. 510.99 ± 580.60 mm Hg·s·m, P=0.042), GERD-Q scale score (12.98±2.39 points vs. 7.59±1.11 points, P=0.033) were significantly improved compared with those before surgery. Postoperative dysphagia was found in 2 patients. And dysphagia was alleviated after diet adjustment and other treatments. Conclusion    Da Vinci robot-assisted Nissen fundoplication is a safe and effective treatment for rGERD.

Effects of Rapamycin and mammalian target of rapamycin - small interfering RNA (mTOR siRNA)on proli-feration,apoptosis and extracellular matrix in premature rats lung fibroblasts exposed to hyperoxia / 中华实用儿科临床杂志

Objective To investigate the effects of Rapamycin and mammalian target of rapamycin - small in-terfering RNA (mTOR siRNA)on the proliferation,apoptosis and collagen Ⅰ(COLⅠ),collagen Ⅲ(COLⅢ)and fi-bronectin(FN)in premature rats lung fibroblasts exposed to hyperoxia. Methods 900 mL/ L volume fraction of oxygen was used to establish hyperoxia - damaged cell models,and the premature rats lung fibroblasts were divided into air control group,hyperoxia group,hyperoxia + rapamycin group and mammalian target of rapamycin - small interfering RNA transfection group. Cell proliferation was assessed by using 3 -(4,5 - Dimethylthiazol - 2 - yl)- 2,5 - dipheny-ltetrazolium bromide assay. Apoptosis were detected by Annexin V - FITC and propidium lodide (PI)double staining. The expressions of COLⅠ,COLⅢ and fibronectin was assessed by using enzyme linked immunosorbent assay and Bcl - 2,P53 and pro - fibrotic factors of connective tissue growth factor(CTGF)and transforming growth factor β(TGF - β)by using Western blot. Results Compared with the air control group,the proliferation of lung fibroblasts decreased and the apoptosis increased in the hyperoxia group,while the contents of COLⅠ(28. 30 ± 0. 53 vs. 17. 43 ±0. 37),COLⅢ(27. 86 ± 1. 02 vs. 17. 43 ± 0. 37)and fibronectin(32. 87 ± 0. 42 vs. 21. 57 ± 0. 47),P53(0. 810 ± 0. 119 vs. 0. 160 ± 0. 018),TGF - β(0. 580 ± 0. 108 vs. 0. 210 ± 0. 008)and CTGF(0. 590 ± 0. 017 vs. 0. 220 ± 0. 007)were also increased but the expression of Bcl - 2(0. 150 ± 0. 004 vs. 0. 600 ± 0. 130)protein was decreased, and the differences were all statistically significant (all P < 0. 01). Compared with the hyperoxia group,the proliferation of lung fibroblasts was increased in the hyperoxia + rapamycin group,but the apoptosis was decreased,the contents of COLⅠ(23. 17 ± 0. 60 vs. 28. 30 ± 0. 53),COLⅢ(17. 09 ± 0. 58 vs. 27. 86 ± 1. 02)and fibronectin(28. 11 ± 0. 68 vs. 32. 87 ± 0. 42),P53(0. 430 ± 0. 008 vs. 0. 810 ± 0. 119),TGF - β(0. 380 ± 0. 008 vs. 0. 580 ± 0. 108)and CTGF (0. 040 ± 0. 006 vs. 0. 590 ± 0. 017)were decreased while the expression of Bcl - 2(0. 290 ± 0. 009 vs. 0. 150 ± 0. 004) protein was increased,and the differences were all statistically significant (all P < 0. 01). In the mTOR siRNA transfec-tion group,compared with the hyperoxia + rapamycin group,the proliferation of lung fibroblasts was increased,but the apoptosis was decreased;the contents of COLⅠ(15. 71 ± 0. 34 vs. 23. 17 ± 0. 60),COLⅢ (13. 85 ± 1. 36 vs. 17. 09 ± 0. 58)and fibronectin(20. 18 ± 0. 28 vs. 28. 11 ± 0. 68),P53(0. 300 ± 0. 006 vs. 0. 430 ± 0. 008),TGF - β(0. 150 ± 0. 002 vs. 0. 380 ± 0. 008)and CTGF(0. 140 ± 0. 004 vs. 0. 040 ± 0. 006)were decreased while the expression of Bcl - 2 (0. 460 ± 0. 012 vs. 10. 290 ± 0. 009)protein was increased,and the differences were all statistically significant (all P < 0. 01). Conclusion Rapamycin and mTOR siRNA can protect lung injury caused by hyperoxia and have a certain inhibitory effect on pulmonary fibrosis,and mTOR siRNA effect is more obvious,so the mechanism may be through the inhibition of mTOR signaling pathway.

Identification and Validation of Candidate Radiation-responsive Genes for Human Biodosimetr / 生物医学与环境科学（英文）

The aim of the present study is to analyze the global research trend of radiation-responsive genes and identify the highly reproducible radiation-responsive genes. Bibliometric methods were applied to analyze the global research trend of radiation-responsive genes. We found 79 publications on radiation-responsive genes from 2000 to 2017. A total of 35 highly reproducible radiation-responsive genes were identified. Most genes are involved in response to DNA damage, cell proliferation, cell cycle regulation, and DNA repair. The p53 signal pathway was the top enriched pathway. The expression levels of 18 genes in human B lymphoblastoid cell line (AHH-1) cells were significantly up-regulated in a dose-dependent manner at 24 h after exposure to 0-5 Gy 60Co γ-ray irradiation. Our results indicate that developing a gene expression panel with the 35 high reproducibility radiation-responsive genes may be necessary for qualitative and quantitative assessment after exposure.

E670G polymorphism of PCSK9 gene of patients with coronary heart disease among Han population in Hainan and three provinces in the northeast of China

Objective: To investigate the correlation between E670G polymorphism of proprotein convertase subtilisin/kexin type 9 (PCSK9) gene and coronary heart disease (CHD), and contrastively study the regional differences of E670G polymorphism of PCSK9 gene between patients with CHD among the Han population in Hainan and three provinces in the northeast of China (TPNC), providing scientific basis for prevention and treatment of patients with CHD in different regions. Methods: A total of 233 cases of patients with CHD were selected from the Han population in Hainan and TPNC as the experimental group (118 cases from Hainan, 115 cases from TPNC), and 239 cases with non-CHD were selected among the Han population also in the two regions as control group (125 cases from Hainan, 114 cases from TPNC). The triglyceride (TG), total cholesterol (TC), high density lipoprotein cholesterol and low density lipoprotein cholesterol (LDL-C) levels of plasma were tested and PCR-RFLP method was used to test the E670G polymorphism of PCSK9 gene. The statistical software package SPSS 21.0 was used for the statistical analysis and P 0.05). Conclusions: There was a close correlation between the E670G polymorphism of PCSK9 gene and CHD with serum lipid level. Among Han population in Hainan and TPNC, the E670G polymorphism of PCSK9 gene of patients with CHD exhibited regional differences.

Effects of rhBNP after PCI on non-invasive hemodynamic in acute myocardial infarction patients with left heart failure

Objective To investigate the effects of exogenous recombinant human brain natriuretic peptide (rhBNP) after primary percutaneous coronary intervention (PCI) on non-invasive hemodynamic in acute myocardial infarction patients with left ventricular failure. Methods A number of 96 acute myocardial infarction patients accompanied with heart failure after PCI hospitalized in the People's Hospital of Sanya during February 2012 to October 2015 were selected. They were randomly divided into the therapy group (n = 50) and control group (n = 46). On the basis of routine treatment, patients in the therapy group were treated with intravenous rhBNP (1.5 μg/kg was intravenous injection with uniform speed of 3 min, followed by continuous infusion 0.007 5 μg/kg·min for 72 h), while the control group received conventional treatment. BioZ-2011 non-invasive hemodynamic real-time monitoring system was used to monitor the hemodynamic parameters changes and the leaves of plasma pro-BNP, serum creatinine, serum potassium, serum sodium and urine volume of each group before and after treating for 30 min, 1 h, 3 h, 6 h, 12 h, 24 h, 48 h, 72 h. Results Patients in the therapy group showed no effect on heart rate, while after 30 min of intravenous injection of rhBNP, CO, CI, SV, and SI increased significantly and LVET and TFC reduced at the same time, which had certain effect on blood pressure (SBP/DBP). Compared with the control group, the therapy group showed a faster and more effective improvement on hemodynamics. Conclusions Acute myocardial infarction patients complicated with left heart failure after primary PCI can significantly improve hemodynamics by treating with rhBNP.

E670G polymorphism of PCSK9 gene of patients with coronary heart disease among Han population in Hainan and three provinces in the northeast of China

OBJECTIVE@#To investigate the correlation between E670G polymorphism of proprotein convertase subtilisin/kexin type 9 (PCSK9) gene and coronary heart disease (CHD), and contrastively study the regional differences of E670G polymorphism of PCSK9 gene between patients with CHD among the Han population in Hainan and three provinces in the northeast of China (TPNC), providing scientific basis for prevention and treatment of patients with CHD in different regions.@*METHODS@#A total of 233 cases of patients with CHD were selected from the Han population in Hainan and TPNC as the experimental group (118 cases from Hainan, 115 cases from TPNC), and 239 cases with non-CHD were selected among the Han population also in the two regions as control group (125 cases from Hainan, 114 cases from TPNC). The triglyceride (TG), total cholesterol (TC), high density lipoprotein cholesterol and low density lipoprotein cholesterol (LDL-C) levels of plasma were tested and PCR-RFLP method was used to test the E670G polymorphism of PCSK9 gene. The statistical software package SPSS 21.0 was used for the statistical analysis and P  0.05).@*CONCLUSIONS@#There was a close correlation between the E670G polymorphism of PCSK9 gene and CHD with serum lipid level. Among Han population in Hainan and TPNC, the E670G polymorphism of PCSK9 gene of patients with CHD exhibited regional differences.

Effects of rhBNP after PCI on non-invasive hemodynamic in acute myocardial infarction patients with left heart failure

OBJECTIVE@#To investigate the effects of exogenous recombinant human brain natriuretic peptide (rhBNP) after primary percutaneous coronary intervention (PCI) on non-invasive hemodynamic in acute myocardial infarction patients with left ventricular failure.@*METHODS@#A number of 96 acute myocardial infarction patients accompanied with heart failure after PCI hospitalized in the People's Hospital of Sanya during February 2012 to October 2015 were selected. They were randomly divided into the therapy group (n = 50) and control group (n = 46). On the basis of routine treatment, patients in the therapy group were treated with intravenous rhBNP (1.5 μg/kg was intravenous injection with uniform speed of 3 min, followed by continuous infusion 0.0075 μg/kg·min for 72 h), while the control group received conventional treatment. BioZ-2011 non-invasive hemodynamic real-time monitoring system was used to monitor the hemodynamic parameters changes and the leaves of plasma pro-BNP, serum creatinine, serum potassium, serum sodium and urine volume of each group before and after treating for 30 min, 1 h, 3 h, 6 h, 12 h, 24 h, 48 h, 72 h.@*RESULTS@#Patients in the therapy group showed no effect on heart rate, while after 30 min of intravenous injection of rhBNP, CO, CI, SV, and SI increased significantly and LVET and TFC reduced at the same time, which had certain effect on blood pressure (SBP/DBP). Compared with the control group, the therapy group showed a faster and more effective improvement on hemodynamics.@*CONCLUSIONS@#Acute myocardial infarction patients complicated with left heart failure after primary PCI can significantly improve hemodynamics by treating with rhBNP.

RhoA/ROCK pathway regulates hypoxia-induced myocardial cell apoptosis

Objective: To observe the regulatory effects of RhoA/ROCK pathway on the apoptosis of cardiac myocyte induced by anoxia and its mechanism. Methods: The model of cardiac myocyte anoxia was established. The beat pulsations and apoptosis rates after 1 h, 3 h, 6 h, 9 h and 12 h of anoxia were recorded and the expressions of RhoA, ROCK1/2, p-PI3K, p-AKT and caspae-3 were detected, too. The apoptosis and the expressions of related proteins were detected after RNAi of RhoA and the inhibition of ROCK by Y-27632. Results: The beat pulsations after 1 h, 3 h, 6 h, 9 h and 12 h decreased gradually but the apoptosis rates increased gradually, and the expressions of RhoA, ROCK1/2, p-PI3K, p-AKT and caspase-3 were increasing along with the increasing duration of anoxia. The apoptotic rates after 1 h, 3 h, 6 h, 9 h and 12 h of anoxia were (4.36[U+4F9D]0.98)%, (8.36[U+4F9D]2.12)%, (15.32[U+4F9D]3.62)%, (18.68[U+4F9D]4.83)% and (24.56[U+4F9D]6.22)%, respectively and decreased more significantly than control group in different time points of anoxia (. P<0.05), and the expressions of RhoA, ROCK1/2, p-PI3K, p-AKT and caspase-3 decreased significantly (. P<0.05). The apoptosis rate and the expressions of RhoA, ROCK1/2, p-PI3K, p-AKT and caspase-3 decreased significantly (. P<0.05) after the inhibition of ROCK by Y-27632 (. P<0.05). Conclusions: RhoA/ROCK pathway plays a critical role in the regulation of the apoptosis of cardiac myocyte induced by anoxia, which may be accompanied by regulating the activity of PI3K/AKT/Caspase-3 pathway.

Quality of life in patients with breast cancer and their rehabilitation needs

We conducted a cross sectional study to investigate the quality of life [QOL] in breast cancer patients after treatment for one year and identify factors which may facilitate improvements in health care for breast cancer. A total of 154 patients of breast cancer were collected from The First Affiliated Hospital of Harerbin Medical University during May 2008 and May 2010, and they were divided into three groups. The quality of life was assessed by Functional assessment of cancer therapy- breast [FACT-B] version 4, and a semi-structured interview was used to investigate the information and rehabilitation needs of the breast cancer patients. Group II had the best social well-being, functional well-being and Total FACT-G among the three groups. Group III had the best physical well-being, emotional well-being, breast specific subscales, total FACT-B and TOI among the three groups. Higher PWB scores were significantly correlation with lower tumor stage; increased SWB scores were significantly correlated with education and occupation, and lower EWB scores were correlated with younger aged women and higher tumor stage [< 40 years]. The semistructured investigation showed all of them want to receive tumor markers detection and PET scan to prevent recurrence. 56% of these patients were worried about symptoms. 42% of the patients reported they had restriction in sexual relationship, and 57% wanted to improve their body image and reconstruction surgery. Breast cancer patients should be followed up for their quality of life and provided effective therapy for their physical and psychological problems

RhoA/ROCK pathway regulates hypoxia-induced myocardial cell apoptosis

OBJECTIVE@#To observe the regulatory effects of RhoA/ROCK pathway on the apoptosis of cardiac myocyte induced by anoxia and its mechanism.@*METHODS@#The model of cardiac myocyte anoxia was established. The beat pulsations and apoptosis rates after 1 h, 3 h, 6 h, 9 h and 12 h of anoxia were recorded and the expressions of RhoA, ROCK1/2, p-PI3K, p-AKT and caspae-3 were detected, too. The apoptosis and the expressions of related proteins were detected after RNAi of RhoA and the inhibition of ROCK by Y-27632.@*RESULTS@#The beat pulsations after 1 h, 3 h, 6 h, 9 h and 12 h decreased gradually but the apoptosis rates increased gradually, and the expressions of RhoA, ROCK1/2, p-PI3K, p-AKT and caspase-3 were increasing along with the increasing duration of anoxia. The apoptotic rates after 1 h, 3 h, 6 h, 9 h and 12 h of anoxia were (4.360.98)%, (8.362.12)%, (15.323.62)%, (18.684.83)% and (24.566.22)%, respectively and decreased more significantly than control group in different time points of anoxia (P<0.05), and the expressions of RhoA, ROCK1/2, p-PI3K, p-AKT and caspase-3 decreased significantly (P<0.05). The apoptosis rate and the expressions of RhoA, ROCK1/2, p-PI3K, p-AKT and caspase-3 decreased significantly (P<0.05) after the inhibition of ROCK by Y-27632 (P<0.05).@*CONCLUSIONS@#RhoA/ROCK pathway plays a critical role in the regulation of the apoptosis of cardiac myocyte induced by anoxia, which may be accompanied by regulating the activity of PI3K/AKT/Caspase-3 pathway.

Treating influenza patients of wind-heat affecting Fei syndrome by jinhua qinggan granule: a double-blinded randomized control trial / 中国中西医结合杂志

<p><b>OBJECTIVE</b>To assess the effect and safety of Jinhua Qinggan Granule (JHG) in treating influenza patients of wind-heat affecting Fei syndrome (WHAFS).</p><p><b>METHODS</b>Totally 136 influenza patients of WHAFS were randomized by stratification into 3 groups, the high dose JHG group (44 cases, 10 g each time), the low dose JHG group (45 cases, 5 g JHG + 5 g placebo each time), and the placebo control group (47 cases, 10 g placebo each time). All medication was administered three times daily for 5 days. The fever disappearance time, the fever disappearance rate, efficacy of TCM syndrome, the disappearance rate of main symptoms and physical signs of flu, the negative rate of virus nucleic acid in the pharyngeal secretion, and safety indicators were assessed.</p><p><b>RESULTS</b>The median fever disappearance time was 32.8 h (95% CI: 22.5-41.0 h) in the high dose JHG group, 26.0 h (95% CI: 14.5-36.5 h) in the low dose JHG group, 39.5 h (95% CI: 29.0-46.0 h) in the placebo control group. There was statistical difference in the median fever disappearance time between the low dose JHG group and the placebo control group (P = 0.011). Three days after treatment, the markedly effective rate of TCM symptoms in the low dose JHG group was 66.7%, higher than that of the placebo control group (38.3%), and its effective rate was superior to that of the high dose JHG group (P = 0.043). Five days after treatment, the recovery rate of the low dose JHG group (42.2%) was higher than that of the high dose JHG group (25.0%, P = 0.026) and that of the placebo control group (14.9%, P = 0.002). The markedly effective rate of the low dose JHG group (86.7%) was higher than that of the placebo control group (55.3%, P = 0.001). Similar effects were obtained in the low dose JHG group and the high dose JHG group, but slightly poor in partial indicators of the high dose JHG group. There was no statistical difference in adverse reaction among these three groups (P > 0.05).</p><p><b>CONCLUSIONS</b>JHG was effective and safe in treating influenza patients of WHAFS. Routinely low dose was the optimal dosage of JHG.</p>

Identification of two novel mitochondrial DNA deletions induced by ionizing radiation / 生物医学与环境科学（英文）

<p><b>OBJECTIVE</b>We identify ionizing radiation-induced mitochondrial DNA (mtDNA) deletions in human lymphocytes and their distribution in normal populations.</p><p><b>METHODS</b>Long-range polymerase chain reactions (PCR) using two pairs of primers specific for the human mitochondrial genome were used to analyze the lymphoblastoid cell line following exposure to 10 Gy (60)Co γ-rays. Limited-condition PCR, cloning and sequencing techniques were applied to verify the mtDNA deletions detected with long-range PCR. Human peripheral blood samples were irradiated with 0, 2 and 6 Gy (60)Co γ-rays, and real-time PCR analysis was performed to validate the mtDNA deletions. In order to know the distribution of mtDNA deletions in normal population, 222 healthy Chinese adults were also investigated.</p><p><b>RESULTS</b>Two mtDNA deletions, a 7455-bp deletion (nt475-nt7929 in heavy strand) and a 9225-bp deletion (nt7714 -nt369 in heavy strand), occurring between two 8-bp direct repeats, were identified in lymphoblastoid cells using long-range PCR, limited-condition PCR and sequencing. These results were also observed for (60)Co γ-rays irradiated human peripheral blood cells.</p><p><b>CONCLUSION</b>Two novel mtDNA deletions, a 7455-bp deletion and a 9225-bp deletion, were induced by ionizing radiation. The rate of the mtDNA deletions within a normal population was related to the donors' age, but was independent of gender.</p>

Correlation between serum growth differentiation factor-15 and TIMI risk scores in patients with unstable angina pectoris / 南方医科大学学报

<p><b>OBJECTIVE</b>To explore the correlation between serum levels of growth differentiation factor-15 (GDF-15) and Thrombolysis in Myocardial Infarction (TIMI) risk scores in patients with unstable angina pectoris (UA).</p><p><b>METHODS</b>The serum levels of GDF-15 in 97 patients with UA and 30 healthy volunteers were measured using enzyme-linked immunosorbent assay (ELISA) and compared between 3 patient groups with different TIMI scores to analyze relationship between serum GDF-15 levels and TIMI risk scores.</p><p><b>RESULTS</b>The serum levels of GDF-15 in UA patients were significantly higher than those in the healthy volunteers (P<0.01). GDF-15 levels also differed significantly between patients with different TIMI scores (P<0.01), and showed a significant positive correlation to TIMI risk scores.</p><p><b>CONCLUSION</b>Serum levels of GDF-15 can be used as an index for evaluating the severity of UA.</p>

Clinical antiviral effects of Peg-IFNa-2a in patients with chronic hepatitis B / 中华肝脏病杂志

<p><b>OBJECTIVE</b>To evaluate antiviral effects of Peg-IFNa-2a in patients with chronic hepatitis B.</p><p><b>METHODS</b>92 chronic hepatitis B patients were enrolled to receive the treatment with Peg-IFNa-2a 180 μg subcutaneous injection once weekly. The patients who did not get early response were divided into 3 groups: group 1, extend the treatment to 72 weeks; group 2, combined with nucleus(s)ide analogue (entecavir or adefovir) treatment; group 3, continue the treatment until 48 weeks. HBV DNA and quantitative HBsAg were assessed at baseline, week 12, 24, 36 and after 24 weeks follow-up.</p><p><b>RESULTS</b>Patients in group 1 had significantly higher SVR rate (78.3%) than patients in group 3 (38.1%, X2=7.33, P<0.05). The mean reduction of HBsAg in group 1 at 24 weeks of post-treatment follow up was higher than that in group 3 (t=2.11, P<0.05). In group 2 the mean reductions of HBV DNA at 24 weeks of post-treatment follow up were (3.9+/-1.1) log10 copy/ml and (3.7+/-1.3) log10 copy/ml respectively with combination of entecavir or adefovir, both of which were significantly higher than that in group 3(t=8.45 and 6.31, P<0.05); the SVR rates in the entecavir group and the adefovir group (83.3% and 85.7%, respectively) were significantly higher than that in group 3 (X2=8.20 and 7.78, P<0.05); the mean reductions of HBsAg in the entecavir group and the adefovir group [(0.8+/-0.5) log10 IU/ml and (0.9+/-0.3) log10 IU/ml, respectively ] were significantly greater than group 3[(0.4+/-0.3) log10 IU/ml, t=3.05 and 4.58, P<0.05]. The level of HBV DNA and C genotype were the main predictors of response.</p><p><b>CONCLUSION</b>Individualizing therapy by prolonging the duration of Peg-IFNa-2a treatment to 72 weeks or adding nucleoside analogues such as entecavir and adefovir in patients without early response may substantially increase the SVR rate and lead to the decrease of HBsAg.</p>

Helicobacter pylori infection enhances atherosclerosis in high-cholesterol diet fed C57BL/6 mice / 中华心血管病杂志

<p><b>OBJECTIVE</b>To evaluate the impacts of Helicobacter pylori (H. pylori) infection on atherosclerosis and plasma lipid levels in high-cholesterol diet fed C57BL/6 mice.</p><p><b>METHOD</b>Female C57BL/6 mice were randomly divided into 4 groups (n = 12 each): fed with normal chow diet (A), infected with H. pylori (B), fed with high-cholesterol diet (C) and infected with H. pylori and fed with high-cholesterol diet (D). After 52 weeks, plasma levels of lipids were measured and aortic atherosclerosis was observed. The ureA, ureC, cagA and vacA DNA were also detected by PCR in the aortic arteries.</p><p><b>RESULT</b>(1) Prevalence of atherosclerosis was similar between group C and D (91.6% vs. 100%, P > 0.05) while there was no atherosclerosis in group A and B. H. pylori infected mice showed more obvious inflammation in gastric mucosa than mice without H. pylori infection. (2) The plasma levels of triglyceride, total cholesterol and LDL were higher and HDL was lower in group B, C and D than those in group A and in group D than in group C (all P < 0.05). (3) Roberts & Thompson scores and number of foam cells in plaques were significantly higher in group D compared with those in group C (all P < 0.05). (4) ureC DNA was detected in 5 out of 12 aortic arteries of mice in group D but not in group A, B and C.</p><p><b>CONCLUSION</b>Our results suggested that H. pylori infection might enhance the atherosclerotic lesion formation in this mouse model.</p>