Cardiomyopathies ; Heart Ventricles ; Humans

Hematopoietic Stem Cell Transplantation ; Histocompatibility Antigens Class I ; genetics ; Humans ; Polymorphism, Genetic ; Transplantation, Homologous

Objective: To evaluate value of application of intravascular ultrasound imaging (IVUS) in diagnosing borderline lesions in left anterior descending artery (LAD) and left main coronary artery (LM). Methods: According to results of coronary angiography (CAG) in 60 cases with coronary borderline lesions, including 20 cases in LM, 20 cases in proximal segment of LAD and 20 cases in middle segment of LAD, the diagnostic value of IVUS in coronary borderline lesion was evaluated. Results: Compared with CAG, mean diameter stenosis rate of each coronary artery [LM: (65.3l±7.81) % vs. (75.28±8.89) %，proximal segment of LAD: (66.67±8.79) % vs. (78.89±7.88) %，middle segment of LAD: (71.55±6.83) % vs. (75.3l±7.81) %, P<0.01 all] significantly increased in IVUS. The differences of detection rate of plaque calcification and plaque rupture were no significant between CAG and IVUS（＞0.05）. Conclusion: Different degrees of underestimation of coronary artery stenosis exist in CAG, especially in proximal segment of LAD. IVUS can be an effective complement to CAG.

Adult Stem Cells ; Myocytes, Cardiac ; cytology

Objective To analyze the dietary habits, energy intake and expenditure, anthropometrics, and body composition of the outpatients visiting the weight loss clinic of Beijing Hospital.Methods We pro-spectively enrolled 89 consecutive patients with body mass index ( BMI) ≥24 kg/m2 from November 2014 to August 2015 in the weight loss clinic of Beijing Hospital.There were 35 male and 54 female, with the mean age of (45.8 ±16.4) years.We divided them into two groups:the diabetes group (n=35) and the non-diabetes group (n=54), and compared the dietary habits, energy intake and expenditure, anthropometrics and body composition between the two groups.Results Regardless of diabetes, the overweight and obese patients all ate fast, mostly finishing a meal in about 10 minutes.They preferred Chinese food and meat, and disliked hot food.The frequency of dinning out in the non-diabetes group (3-5 times per week) was higher than that in the diabetes group (1-2 times per week) .Compared with the diabetes group, the non-diabetes group had higher fat-to-energy ratio [(34.9 ±7.6)%vs.(30.8 ±5.9)%], but lower carbohydrate intake [(232.2 ±59.7) g vs.(283.6 ±89.5) g], carbohydrate-to-energy ratio [ (47.9 ±8.3)%vs.(53.4 ±7.1)%], and the ratio of resting metabolic rate to body weight [ (66.9 ±9.6) kJ/(d? kg) vs.(71.1 ±7.9) kJ/(d? kg)] (all P<0.05).There were no statistically significant differences between the two groups in total energy intake, pro-tein intake, high quality protein intake, fat intake, protein-to-energy ratio, and resting metabolic rate (all P>0.05).Anthropometrics showed that the mean BMI of the patients was (32.8 ±4.4) kg/m2, with the maxi-mum being 53.5 kg/m2.The hip circumference [ (117.15 ±9.9) cm vs.(111.1 ±8.2) cm], upper arm circumference [ (36.4 ±3.8) cm vs.(34.0 ±3.3) cm], and triceps skinfold thickness [ (36.1 ±8.9) mm vs.(31.6 ±8.8) mm] were larger in the non-diabetes group than in the diabetes group (all P<0.05), but the mean age was lower in the non-diabetes group [ (41.7 ±16.9) years vs.(52.9 ±13.1) years) (P=0.01).There were no statistically significant differences between the two groups in body weight, BMI, waist circumference, neck circumference, and bilateral hand grip strength (all P>0.05).According to body compo-sition analysis, the body weight [ (94.8 ±18.3) kg vs.(86.9 ±17.2) kg], body fat mass [ (39.7 ± 11.3) kg vs.(33.5 ±8.9) kg], body fat percentage [ (41.7 ±6.5)%vs.(38.5 ±6.7)%], and visceral fat area [ (145.3 ±24.8) cm2 vs.(130.7 ±27.5) cm2 ] were larger in the non-diabetes group than in the di-abetes group ( all P<0.05) .There were no statistically significant differences between the two groups in BMI and skeletal muscle mass (both P>0.05).Conclusion Compared with diabetes patients, overweight and obese non-diabetes patients may be younger, having worse dietary habits, and having larger body fat mass, body fat percentage, and visceral fat area.

Objective To evaluate the effect of behavioral intervention on changing knowledge, attitude and practice (KAP) about AIDS among the migrant workers in railway construction sites. Methods Health education and behavioral intervention on AIDS were carried out among the migrant workers for 4 to 5 months, who were clusteredly sampled from two railway construction sites, in the forms of mini-media, peer education and so on. Questionnaire survey was conducted among them before and after the intervention. Results The results showed that the knowledge awareness of the migrant workers on the transmission routes, preventions of AIDS and self-protection consciousness increased significantly by comparing the indexes of 943 pre-intervention with those of 671 post-intervention workers. After intervention procedures, the rate of those workers who would adopt negative attitudes towards the HIV infected persons because of fear and discrimination was decreased from 9.8% and 10.5% to 6.3% and 3.5% (both P

Objective To observe the effect of capsaicin on lipid deposition in liver cells and the expression of autophagy,to provide new ideas and targets for the study of fatty liver disease.Methods The model of nonalcoholic fatty liver disease (NAFLD) was established by inducing LGF cell line of liver primary cells with oleic acid (40 μg/mL).The experiment was divided into blank control group,oleic acid group,capsaicin group[oleic acid--capsaicin(100 μmol/L)].The level of intracellular lipid was detected by oil red O staining and triglyceride (TG) kit.Western bolt was used to detect the expression level of autophagy marker molecule p62 and LC3,and to calculate the ratio of LC3 Ⅱ/LC3-Ⅰ.Results After treated with 40 μg/mL oleic acid for 24 h,the oil red O staining showed that orange-red lipid droplets were found in the oleic acid group,but there was no obvious orange-red lipid droplet formation in the blank group,which suggesting that the NAFLD cell model was established successfully by using 40 μg/mL oleic acid in vitro.Oil red O staining was observed,the cells in the capsaicin group were significantly less than the oleic acid group,and the content of triglyceride in the liver cells was significantly lower than that in the oleic acid group(P＜0.05).Western bolt test results showed that capsaicin group p62 protein levels were significantly lower compared with the oleic acid group(P＜0.05),while the LC3-Ⅱ/LC3-Ⅰ ratio was higher than that of oleic acid group(P＜0.05).Conclusion NAFLD model was established by inactivating LO2 cell line with oleic acid in vitro.Capsaicin stimulated NAFLD cells,upregulated the autophagy level of NAFLD cells and reduced intracellular lipid deposition,but the specific mechanism need further study.

AIM: To evaluate the expression of iNOS mRNA in different invasion ability colon carcinoma cell strains. METHODS: MTT was used to detect the growth and reproduction of colon cancer cell strain CW-2 and LS174T. RT-PCR and Northern blot were used to detect expression of iNOS mRNA in colon cancer. RESULTS: MTT growth curve displayed that colon cancer cell strain LS174T grew and reproduced faster than cell strain CW-2. RT-PCR showed that iNOS mRNA expressed strongly in CW-2 cell strain, while iNOS mRNA expressed weakly in LS174T cell strain. Northern blot detected that iNOS mRNA expressed obviously in CW-2 cell strain, but cell strain LS174T have no obvious iNOS mRNA expression. All-trans retinoic acid (ATRA) had no obvious effect on iNOS mRNA expression in CW-2 cell strain of colon cancer. CONCLUSIONS: ATRA has no obvious effect on iNOS mRNA expression. iNOS has a dual effect on tumor growth. In low-metastatic colon carcinoma CW-2, iNOS may exert a anti-tumor influence by cytotoxicity or inducing cell apoptosis. In high-metastatic colon cancer LS174T, iNOS produced low concentration of NO, which may be an important signal-transduction molecule for increasing blood supply and angiogenesis, which improve the growth, invasion and metastasis of tumor.

Objective · To observe effect of 17β estrodial (17β E2) with different concentrations on C type natriuretic peptide (CNP), insulin like growth factor 1 (IGF1), and natriuretic peptide receptor B (NPR-B) expression and proliferation of growth plate chondrocytes of rats in vitro. Methods · Eight Wistar rats were sacrificed and their epiphyseal cartilages of the upper tibias were separated to obtain chondrocytes on the 14th day after birth. Then chondrocytes were cultured with 17β E2 in different concentrations (10-4、10-6、10-8、10-10 and 10-12 mol/L) for 48 h, while control group was cultured without 17β E2. CCK8 method, ELISA and qRT-PCR were used to analyze the proliferation of chondrocytes, the levels of CNP and IGF1 in culture medium and mRNA levels of CNP, NPR-B and IGF1, respectively. Results · 17β E2 in different concentrations affected the proliferation of growth plate chondrocytes significantly. When the concentration of 17β E2 was 10-8 mol/L, it had the strongest effect on the cell proliferation. When the concentration increased to 10-4 mol/L, the proliferation of chondrocytes was inhibited. With the increasement of 17β E2 concentration, the levels of CNP in the culture medium and the mRNA levels of CNP in the chondrocytes were significantly different. The highest levels of CNP protein and mRNA both appeared in 10-8 mol/L group, while the lowest levels both appeared in 10-4 mol/L group. IGF1 and its mRNA also reached the highest levels in 10-8 mol/L group,but the lowest concentration and mRNA level were in 10-10 mol/L group and 10-12 mol/L, respectively. Both CNP mRNA and protein levels were positive correlated with the proliferation of chondrocytes (P=0.000). Nevertheless, there was no significant correlation between the proliferation of chondrocytes and IGF1 mRNA or protein levels (P>0.05). Conclusion · 17β E2 modulates proliferation of rat growth plate chondrocytes in a dose-effect manner. It enhances proliferation at relatively low concentrations (10-10-10-8 mol/L) and inhibits proliferation at high concentration. This effect is positively related to CNP expression in chondrocytes.

Objective To explore the effect of botulinum toxin type A(BTXA)in the treatment of early hypertrophic scars(HTS).Methods BTXA was injected into and around the eady HTS,and then the modal and histological changes of the scars as well as the clinical reaction were observed in the patient.BTXA was also injected into muscle around the incision and effect on the cicatrization observed.Results Injection of BTXA could obviously alleviate ache and pruritus of eady HTS and could impel the atrophy and inteneration of eady HTS.Changes were found in paraffin-embedded tissue section by the hemetoxylin and eosin(HE)staining.Injection of BTXA into muscle around the cut could can reduce occurrence of HTS.Conclusion BTXA can help prevent the early HTS to a certain extent.The mechanism underlying this effect may be related to the reducing the tension around scars and proliferative activity,interfering with the signal transduction of small nerves,affecting the proliferation and apoptosis of fibroblasts and subsequently decreasing the collagen synthesis.