Comparative Analysis of Apoptotic Resistance of Mesenchymal Stem Cells Isolated from Human Bone Marrow and Adipose Tissue

Aim. Mesenchymal stem cells (MSCs) isolated from human bone marrow (hBM) and adipose tissue (hAT) are perceived as attractive sources of stem cells for cell therapy. The aim of this study was to compare MSCs from hBM and hAT for their immunocytochemistry staining and resistance to in vitro apoptosis. Methods. In our study, we investigated the antiapoptotic ability of these MSCs toward oxidative stress induced by hydrogen peroxide (H2O2) and serum deprivation. Results were assessed by MTT and flow cytometry. All experiments were repeated a minimum of three times. Results. Flow cytometry and MTT analysis revealed that hAT-MSCs exhibited a higher resistance toward H2O2-induced apoptosis (n = 3, hBM-hAT viability H2O2  58.43 ± 1.24–73.02 ± 1.44, P < 0.02) and to serum-deprivation-induced apoptosis at days 1 and 4 than the hBM-MSCs (n = 3, hAT-hBM absorbance, resp., day 1: 0.305 ± 0.027–0.234 ± 0.015, P = 0.029, day 4: 0.355 ± 0.003–0.318 ± 0.007, P = 0.001, and day 7: 0.400 ± 0.017–0.356 ± 0.008, P = 0.672). hAT-MSCs showed superior tolerance to oxidative stress triggered by 2 mmol/L H2O2 and also have superior antiapoptosis capacity toward serum-free culture. Conclusion. In this study we found that hAT-MSCs are more resistant to in vitro apoptosis

Post-discharge heart failure monitoring program in Turkey: Hit-PoinT

Objective: The aim of this study was to assess the efficacy and feasibility of an enhanced heart failure (HF) education with a 6-month telephone follow- up program in post-discharge ambulatory HF patients. Methods: The Hit-Point trial was a multicenter, randomized, controlled trial of enhanced HF education with a 6-month telephone follow-up program (EHFP) vs routine care (RC) in patients with HF and reduced ejection fraction. A total of 248 patients from 10 centers in various geographical areas were randomized: 125 to EHFP and 123 to RC. Education included information on adherence to treatment, symptom recognition, diet and fluid intake, weight monitoring, activity and exercise training. Patients were contacted by telephone after 1, 3, and 6 months. The primary study endpoint was cardiovascular death. Results: Although all-cause mortality didn't differ between the EHFP and RC groups (p=NS), the percentage of cardiovascular deaths in the EHFP group was significantly lower than in the RC group at the 6-month follow up (5.6% vs. 8.9%, p=0.04). The median number of emergency room visits was one and the median number of all cause hospitalizations and heart failure hospitalizations were zero. Twenty-tree percent of the EHFP group and 35% of the RC group had more than a median number of emergency room visits (p=0.05). There was no significant difference regarding the median number of all-cause or heart failure hospitalizations. At baseline, 60% of patients in EHFP and 61% in RC were in NYHA Class III or IV, while at the 6-month follow up only 12% in EHFP and 32% in RC were in NYHA Class III or IV (p=0.001). Conclusion: These results demonstrate the potential clinical benefits of an enhanced HF education and follow up program led by a cardiologist in reducing cardiovascular deaths and number of emergency room visits with an improvement in functional capacity at 6 months in post-discharge ambulatory HF patients.Türk Kardiyoloji Derneği Kalp Yetmezliği Çalışma Grub