For evaluation of EPCs, blood samples were drawn from an antecubital or existing central vein; the first 3 ml were discarded.
Evaluation of CECs and EPCs by flow-cytometry showed that the number of CECs and EPCs were significantly higher in SSc patients than in controls and that among patients, CECs were higher in patients with cutaneous ulcers than in those without ulcers.
Several case-control studies and evaluations in patient series indicated that the EPC number is inversely associated with cardiovascular risk factors[4], [12], [13], [28], [37] [40] giving raise to the view that EPC are exhausted by the risk burden and unfavourable life-style.
The current study is the first large scale evaluation in the general community and aims at further elaborating the association of EPC number and EPC-CFU with cardiovascular risk factors and life-style behaviors.
In Australia it is known as the Nationwide House Energy Rating Scheme and is based upon a ten-star rating, and in the UK the Energy Performance Certificates (EPCs) are rated from A to G. HERS provides a standardized evaluation of a home's energy efficiency and expected energy costs.
Actually, several case-control studies and evaluations in patient series have demonstrated inverse associations between EPC number and age[11], diabetes[12], smoking[13], hypertension[14], family history for coronary artery disease[12], CRP leve[15], physical inactivity[16] and the Framingham risk score[4].
HRQoL evaluation seems important because complications affect the daily basis of formerly EPC during early school age [ 5- 7].
Preclinical evaluation and validation on the use of endothelial progenitor cells (EPCs) for the prevention and reversal of experimental PAH is reviewed and the design of a "first in man" clinical trial to assess the safety and efficacy of a combined EPC and endothelial NO-synthase gene therapy for patients that are refractory to standard therapies is discussed.
By using the mature ideas, tools, and technology of risk management - experts' marking methods and synthetic evaluation method based on fuzzy theory, the target system of evaluation on EPC is discussed, qualitative and quantitative risk evaluation is conducted, and the guiding ideas and the model are provided.
The statistical model used for evaluation of the variables CD34 +, CD34 + /CD133 + and EPC-CFU over time (menstrual cycle) was a linear mixed model with fixed and random effects.
