PMID- 30571375 OWN - NLM STAT- MEDLINE DCOM- 20191211 LR - 20210109 IS - 2047-9980 (Electronic) IS - 2047-9980 (Linking) VI - 7 IP - 21 DP - 2018 Nov 6 TI - Estradiol Treatment Initiated Early After Ovariectomy Regulates Myocardial Gene Expression and Inhibits Diastolic Dysfunction in Female Cynomolgus Monkeys: Potential Roles for Calcium Homeostasis and Extracellular Matrix Remodeling. PG - e009769 LID - 10.1161/JAHA.118.009769 [doi] LID - e009769 AB - Background Left ventricular ( LV ) diastolic dysfunction often precedes heart failure with preserved ejection fraction, the dominant form of heart failure in postmenopausal women. The objective of this study was to determine the effect of oral estradiol treatment initiated early after ovariectomy on LV function and myocardial gene expression in female cynomolgus macaques. Methods and Results Monkeys were ovariectomized and randomized to receive placebo (control) or oral estradiol at a human-equivalent dose of 1 mg/day for 8 months. Monkeys then underwent conventional and tissue Doppler imaging to assess cardiac function, followed by transcriptomic and histomorphometric analyses of LV myocardium. Age, body weight, blood pressure, and heart rate were similar between groups. Echocardiographic mitral early and late inflow velocities, mitral annular velocities, and mitral E deceleration slope were higher in estradiol monkeys (all P<0.05), despite similar estimated LV filling pressure. MCP1 (monocyte chemoattractant protein 1) and LV collagen staining were lower in estradiol animals ( P<0.05). Microarray analysis revealed differential myocardial expression of 40 genes (>1.2-fold change; false discovery rate, P<0.05) in estradiol animals relative to controls, which implicated pathways associated with better calcium ion homeostasis and muscle contraction and lower extracellular matrix deposition ( P<0.05). Conclusions Estradiol treatment initiated soon after ovariectomy resulted in enhanced LV diastolic function, and altered myocardial gene expression towards decreased extracellular matrix deposition, improved myocardial contraction, and calcium homeostasis, suggesting that estradiol directly or indirectly modulates the myocardial transcriptome to preserve cardiovascular function. FAU - Michalson, Kristofer T AU - Michalson KT AD - 1 Section on Comparative Medicine Department of Pathology Wake Forest University School of Medicine Winston-Salem NC. FAU - Groban, Leanne AU - Groban L AD - 2 Department of Anesthesiology Wake Forest University School of Medicine Winston-Salem NC. FAU - Howard, Timothy D AU - Howard TD AD - 3 Department of Biochemistry Wake Forest University School of Medicine Winston-Salem NC. FAU - Shively, Carol A AU - Shively CA AD - 1 Section on Comparative Medicine Department of Pathology Wake Forest University School of Medicine Winston-Salem NC. FAU - Sophonsritsuk, Areepan AU - Sophonsritsuk A AD - 1 Section on Comparative Medicine Department of Pathology Wake Forest University School of Medicine Winston-Salem NC. FAU - Appt, Susan E AU - Appt SE AD - 1 Section on Comparative Medicine Department of Pathology Wake Forest University School of Medicine Winston-Salem NC. FAU - Cline, J Mark AU - Cline JM AD - 1 Section on Comparative Medicine Department of Pathology Wake Forest University School of Medicine Winston-Salem NC. FAU - Clarkson, Thomas B AU - Clarkson TB AD - 1 Section on Comparative Medicine Department of Pathology Wake Forest University School of Medicine Winston-Salem NC. FAU - Carr, J Jeffrey AU - Carr JJ AD - 5 Department of Radiology Vanderbilt University School of Medicine Nashville TN. FAU - Kitzman, Dalane W AU - Kitzman DW AD - 4 Section on Cardiology Department of Internal Medicine Wake Forest University School of Medicine Winston-Salem NC. FAU - Register, Thomas C AU - Register TC AD - 1 Section on Comparative Medicine Department of Pathology Wake Forest University School of Medicine Winston-Salem NC. LA - eng GR - P30 AG021332/AG/NIA NIH HHS/United States GR - P30 AG049638/AG/NIA NIH HHS/United States GR - R01 AG018915/AG/NIA NIH HHS/United States GR - T32 OD010957/OD/NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PL - England TA - J Am Heart Assoc JT - Journal of the American Heart Association JID - 101580524 RN - 4TI98Z838E (Estradiol) RN - SY7Q814VUP (Calcium) SB - IM MH - Animals MH - Calcium/*physiology MH - Diastole/*drug effects/*physiology MH - Estradiol/*pharmacology MH - Extracellular Matrix/*physiology MH - Female MH - Gene Expression/*drug effects MH - Heart/*drug effects MH - Homeostasis/*physiology MH - Macaca fascicularis MH - Myocardium MH - *Ovariectomy MH - Postoperative Period MH - Random Allocation MH - Time Factors PMC - PMC6404177 OTO - NOTNLM OT - diastolic dysfunction OT - estrogen OT - fibrosis OT - menopause OT - transcriptome EDAT- 2018/12/21 06:00 MHDA- 2019/12/18 06:00 PMCR- 2018/11/06 CRDT- 2018/12/21 06:00 PHST- 2018/12/21 06:00 [entrez] PHST- 2018/12/21 06:00 [pubmed] PHST- 2019/12/18 06:00 [medline] PHST- 2018/11/06 00:00 [pmc-release] AID - JAH33593 [pii] AID - 10.1161/JAHA.118.009769 [doi] PST - ppublish SO - J Am Heart Assoc. 2018 Nov 6;7(21):e009769. doi: 10.1161/JAHA.118.009769.