Teneligliptin Prevents Cardiomyocyte Hypertrophy, Fibrosis, and Development of Hypertensive Heart Failure in Dahl Salt-Sensitive Rats.

Abstract:

BACKGROUND:We investigated the effects of the dipeptidyl peptidase 4 inhibitor teneligliptin on cardiac function and hemodynamics during heart failure in hypertensive model rats. METHODS AND RESULTS:Fifty-five male Dahl salt-sensitive rats were divided into 4 groups: control group (0.3% NaCl chow; n = 13), hypertension (HT) group (8% NaCl chow; n = 20), HT-early TNL group (8% NaCl chow and teneligliptin from 6 weeks; n = 10), and HT-late TNL group (8% NaCl chow and teneligliptin from 10 weeks; n = 12). Hemodynamic measurement and tissue analyses were performed at 18 weeks. In all of the HT groups, systolic blood pressures were similarly elevated (P = .66) and heart weights similarly increased (P = .36) with and without TNL administration. LV end-diastolic dimension was significantly enlarged only in the HT-early TNL group compared with the control group (P = .025). Histologic analysis showed less fibrosis (P = .008) and cardiomyocyte widths (P = .009) in the HT-early TNL group compared with the HT group. On hemodynamic analysis, only the HT group showed significant LV end-diastolic pressure elevation (P = .049) and lung congestion (P < .001) compared with the control group. CONCLUSIONS:These results suggest that teneligliptin prevents concentric LV hypertrophy, fibrosis, and development of congestive heart failure in Dahl salt-sensitive rats. Teneligliptin may inhibit pressure-overload hypertrophic adaption and result in LV eccentric hypertrophy with reduced LV ejection fraction.

journal_name

J Card Fail

authors

Yamamoto M,Ishizu T,Seo Y,Suto Y,Sai S,Xu D,Murakoshi N,Kimura T,Kawakami Y,Aonuma K

doi

10.1016/j.cardfail.2017.09.001

subject

Has Abstract

pub_date

2018-01-01 00:00:00

pages

53-60

issue

1

eissn

1071-9164

issn

1532-8414

pii

S1071-9164(17)31163-6

journal_volume

24

pub_type

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