scholarly journals Harnessing the secretome of adipose-derived stem cells in the treatment of ischemic heart diseases

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Xiaoting Li ◽  
Teng Ma ◽  
Jiacheng Sun ◽  
Mingjing Shen ◽  
Xiang Xue ◽  
...  
Keyword(s):  
Stem Cells ◽  
Heart Diseases ◽  
Ischemic Heart ◽  
Adipose Derived Stem Cells ◽  
Ischemic Heart Diseases

Abstract 3899: SDF-1α Mediates the Therapeutic Effect of Human Adipose-Derived Stem Cells on Acute Myocardial Infarction Recruiting Bone Marrow-Derived Endothelial Progenitor Cells

Circulation ◽  
2008 ◽  
Vol 118 (suppl_18) ◽  
Author(s):  
Masaaki Ii ◽  
Ayumi Yokoyama ◽  
Miki Horii ◽  
Hiroshi Akimaru ◽  
Takayuki Asahara
Keyword(s):  
Myocardial Infarction ◽  
Stem Cells ◽  
Cardiac Function ◽  
Therapeutic Effect ◽  
Heart Diseases ◽  
Capillary Density ◽  
Ischemic Myocardium ◽  
Control Group ◽  
Adipose Derived Stem Cells ◽  
Ischemic Heart Diseases

Background: Recently, human multipotent adipose-derived stem cells (hMADSs) have been isolated featuring extensive expansion capacity ex vivo. However, little is known about the therapeutic efficacy of hMADS in ischemic heart diseases. We tested the hypothesis that hMADS transplantation may contribute to cardiac functional recovery following myocardial infarction (MI). Methods and Results: Nude rats were either transplanted with hMADSs (5x10 5 /rat, n=10) or PBS (control, n=9) in ischemic myocardium immediately following MI induction. The cardiac function, infarct size and capillary density in the peri-infarct area were evaluated by echocardiography and immunostaining 28 days after surgery. The cardiac function was significantly greater with increased capillary density and reduced fibrosis area in the hMADS group than that in the control group. Next, we examined tissue regeneration in the infarct heart by the transplanted hMADSs. However, remarkable differentiation of hMADSs into any cardiac cell lineages was not detected. To explore another mechanism for the favorable effect of hMADSs, we further examined mRNA expression of cytokines in hMADSs under hypoxic conditions. Although hypoxia decreased the expressions, robust VEGF, bFGF, and SDF-1α expressions were detected in hMADSs. Notably, the stem/progenitor chemokine SDF-1α expression in hMADSs was significantly greater than that in human mesenchymal stem cells that are well known to have a therapeutic effect on ischemic heart diseases. We then focused on SDF-1α /CXCR4 axis and examined the contribution of bone marrow (BM)-derived endothelial progenitor cells (EPCs), that have CXCR4 receptor for SDF-1v, to ischemic myocardium using a Tie2/LacZ BM transplantation nude mouse model. β-gal positive EPCs are frequently observed in ischemic myocardium in the hMADS group compared to the control group. Conclusion: hMADSs exhibit a therapeutic effect on cardiac function following MI with the production of VEGF, bFGF, and SDF-1α demonstrating paracrine effects rather than direct contribution to cardiac regeneration. These findings suggest that transplanted hMADSs and recruited EPCs may synergistically promote angiogenesis playing a role in ischemic myocardium.

Ischemic Heart Disease in Death Discordant Twins - A Study on 205 Male and Female Pairs with Special Reference to Hereditary Factors

1976 ◽  
Vol 25 (1) ◽  
pp. 271-275 ◽  
Author(s):  
Ulf de Faire
Keyword(s):  
Risk Factors ◽  
Heart Diseases ◽  
Genetic Influence ◽  
Ischemic Heart ◽  
Male And Female ◽  
Ischemic Heart Diseases ◽  
Twin Registry ◽  
Hereditary Factors ◽  
Discordant Twins ◽  
Swedish Twin Registry

From January 1971 to March 1973 all twin pairs in the Swedish Twin Registry below the age of 70, who became death-discordant, were continuously recorded. A total of 205 (78%) of the surviving cotwins were examined with respect to different manifestations of ischemic heart diseases (IHD) and several “environmental” and “biometric” risk factors. Among the death-discordant pairs, the cause of death was IHD in 57 pairs and other than IHD in 148 pairs. Analyses revealed that the prevalence rate of myocardial infarction, angina pectoris, pathologic Q-wave, and ST depressions in connection with exercise, were significantly higher among the surviving cotwins whose partners had died from IHD than those whose partners had died from other causes. The same trends were seen for most of the risk factors measured both singly and in combination, although not very pronounced. The results indicate a substantial genetic influence in the development of IHD. The genetic influence is possibly transmitted not only through some of the risk factors measured, but also through other factors, still unknown.

scholarly journals ST2 in Stable and Unstable Ischemic Heart Diseases

2015 ◽  
Vol 115 (7) ◽  
pp. 48B-58B ◽  
Author(s):  
A. Mark Richards ◽  
Salvatore Di Somma ◽  
Thomas Mueller
Keyword(s):  
Heart Diseases ◽  
Ischemic Heart ◽  
Ischemic Heart Diseases

scholarly journals Risk Factors Associated with Ischemic Heart Diseases in Different Age Groups Patients of Tertiary Care Hospitals of Peshawar

2015 ◽  
Vol 1 (2) ◽  
pp. 3-9
Author(s):  
Riaz Gul ◽  
Sumaira Naz
Keyword(s):  
Risk Factors ◽  
Heart Diseases ◽  
Tertiary Care ◽  
Age Groups ◽  
Ischemic Heart ◽  
P Value ◽  
Age Group ◽  
Ischemic Heart Diseases ◽  
Sedentary Life ◽  
Tertiary Care Hospitals

Objectives:To determine different risk factors associated with ischemic heart diseases in different age group patients of tertiary care hospitals of Peshawar.Methodology:A cross sectional study conducted on 350 patients of different age groups presented with ischemic heart diseases in tertiary care hospitals of Peshawar. Study was conducted for duration of 3 months from December 2013 to February 2014. Non probability convenient sampling technique was used. Sample size was calculated using standard sample size calculator. Semi structured questionnaire was used as data collection tool. Patient’s record and investigations were used as adding tools. Standard definition was made for ischemic heart disease. Different modifiable and non-modifiable factors were assessed and were analyzed using SPSS version 16.Results:This study contains 350 patients in which female patients were 133(38%) and male were 217(62%).The mean age was 57.23±11.36 years. The age of the patients ranges from 22 to 80 years. The frequencies of risk factors were stress (73.1%) followed by hypertension (65.7%), sedentary life style (59.4%), family history (57.1%), smoking (50.6%), over weight and obese (39.1%), below normal HDL (30.3%), high LDL (29.1%), hypertriglyceridemia (28%), hypercholesterolemia (23.7%). 64.3% patients were presenting with acute IHD and 35.7% were with chronic IHD. Stress, HTN, DM and sedentary life style were found to be significantly associated with male gender (p- value <0.05). Age was divided into two groups, <45 years and >45 years. Stress, HTN, DM and hypercholesterolemia had a significant association with >45 years of age group. (P-value <0.05).Conclusion:Stress, HTN, DM, sedentary life styles were the major risk factors. And they were found to be more in male gender and in equal to more than 45 years of age group.

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