ABSTRACT
SCOPE: Green leafy vegetables (GLV) may improve postprandial glycemic responses (PGR) and metabolic health. However, inter-individual variations (IIV) preclude conclusive evidence. Sirtuin system is emerging as a key player in blood glucose control. This study investigates IIV in PGR in women co-ingesting GLV with a carbohydrate meal and interactions with the sirtuin system. METHODS AND RESULTS: Volunteers (n = 31 women) consume rice, rice with bok choy, or spinach (75g available carbohydrate) on separate occasions. Postprandial glucose, insulin, adropin, and lipid levels are measured. Anthropometric measurements and sex hormones are measured. GeXP assay measures whole blood postprandial gene expression profiles of 25 markers involved in sirtuin signaling. GLV consumption has no significant effect on PGR, which shows high variation. PGR correlated with age, but no other consistent associations are observed. Sirtuin gene expression profiles reveal distinct stratified subgroups associated with PGR, lipid, insulin, fat mass, waist/hip circumferences, and adropin levels. CONCLUSION: PGR to co-ingesting GLV with a carbohydrate meal are highly variable in this cohort and fail to reveal a significant reduction in PGR. Variable responses are largely independent of menopausal status and meal consumed. However, lower expression of sirtuin gene targets is associated with higher PGR and with markers linked to health status.
Subject(s)
Dietary Carbohydrates/administration & dosage , Postprandial Period , Sirtuins/physiology , Vegetables , Adult , Aged , Blood Glucose , Female , Gene Expression Profiling , Humans , Insulin/blood , Intercellular Signaling Peptides and Proteins/blood , Lipids/blood , Middle Aged , Young AdultABSTRACT
Nurse leaders need to be aware of the costly implications of staff retention, unit finances, and patient satisfaction caused by unmanaged stress and burnout as well as staff disengagement. It is vital to the organizational behavior of the health care facility for nurse managers to promote, educate, and screen for hardiness in their staff. Hardiness education can lessen the effects of stress and burnout. Nurse managers and executives can give their staff valuable tools and resources to enhance hardiness and coping abilities through hardiness education.
