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Hesperidin reverses perivascular adipose-mediated aortic stiffness with aging.
Experimental Gerontology ( IF 3.9 ) Pub Date : 2017-08-07 , DOI: 10.1016/j.exger.2017.08.003
An Ouyang 1 , Tyler B Garner 1 , Bradley S Fleenor 1
Affiliation  

We tested the hypothesis that hesperidin would reverse age-related aortic stiffness, perivascular adipose (PVAT) mediated-arterial stiffening and PVAT advanced glycation end-products (AGE) accumulation. Aortic pulse wave velocity (aPWV) and intrinsic mechanical stiffness, two measures of arterial stiffness, were assessed in C57BL/6 mice that were young (6months), old (27-29months), or old treated with hesperidin for 4weeks. Old compared with young mice had increased aPWV (444±10 vs. 358±8cm/s, P<0.05) and mechanical stiffness (6506±369 vs. 3664±414kPa, P<0.05). In old mice hesperidin reduced both aPWV (331±38cm/s) and mechanical stiffness (4445±667kPa) to levels not different from young. Aortic segments from old animals cultured with (+) PVAT had greater mechanical stiffness compared to young (+) PVAT (6454±323 vs. 3575±440kPa, P<0.05) that was ameliorated in arteries from old hesperidin treated cultured (+) PVAT (2639±258kPa). Hesperidin also reversed the aging-related PVAT AGE accumulation (all, P<0.05). A 4-week treatment with the AGE inhibitor aminoguanidine reversed both the age-related increase in aPWV (390±7cm/s) and mechanical stiffness (3396±1072kPa), as well as mechanical stiffness in arteries cultured (+) PVAT (3292±716kPa) (all, P<0.05) to values not different from young. In conclusion, hesperidin ameliorates the age-related increase in aortic stiffness and the PVAT-mediated effects on arterial stiffening. Hesperidin also reversed PVAT AGE accumulation, where PVAT AGE were shown to promote aortic stiffness with aging.

中文翻译:

橙皮苷随着衰老逆转血管周围脂肪介导的主动脉僵硬。

我们测试了橙皮苷会逆转年龄相关的主动脉僵硬,血管周围脂肪(PVAT)介导的动脉硬化和PVAT晚期糖基化终产物(AGE)积累的假说。在C57BL / 6小鼠中评估了主动脉脉搏波速度(aPWV)和内在机械刚度,这是对年轻(6个月),大(27-29个月)或用橙皮苷治疗4周的老小鼠的C57BL / 6小鼠。与年轻小鼠相比,老年小鼠的aPWV增加(444±10 vs. 358±8cm / s,P <0.05)和机械刚度增加(6506±369 vs. 3664±414kPa,P <0.05)。在年老的老鼠中,橙皮苷可将aPWV(331±38cm / s)和机械刚度(4445±667kPa)降低至与年轻人相同的水平。与(+)PVAT相比,用(+)PVAT培养的老动物的主动脉段具有更高的机械刚度(6454±323 vs. 3575±440kPa,P <0)。05)通过旧橙皮苷处理过的培养的(+)PVAT(2639±258kPa)改善了动脉。橙皮苷还逆转了与衰老相关的PVAT AGE积累(所有,P <0.05)。用AGE抑制剂氨基胍进行的4周治疗逆转了与年龄相关的aPWV升高(390±7cm / s)和机械刚度(3396±1072kPa),以及培养的(+)PVAT动脉的机械刚度(3292± 716kPa)(全部,P <0.05)的值与年轻人相同。总之,橙皮苷改善了与年龄有关的主动脉僵硬度增加以及PVAT介导的对动脉僵硬的影响。橙皮苷还逆转了PVAT AGE的积累,其中显示PVAT AGE会随着年龄的增长而促进主动脉僵硬。橙皮苷还逆转了与衰老相关的PVAT AGE积累(所有,P <0.05)。用AGE抑制剂氨基胍进行的4周治疗逆转了与年龄相关的aPWV升高(390±7cm / s)和机械刚度(3396±1072kPa),以及培养的(+)PVAT动脉的机械刚度(3292± 716kPa)(全部,P <0.05)的值与年轻人相同。总之,橙皮苷改善了与年龄有关的主动脉僵硬度增加以及PVAT介导的对动脉僵硬的影响。橙皮苷还逆转了PVAT AGE的积累,其中显示PVAT AGE会随着年龄的增长而促进主动脉僵硬。橙皮苷还逆转了与衰老相关的PVAT AGE积累(所有,P <0.05)。用AGE抑制剂氨基胍进行的4周治疗逆转了与年龄相关的aPWV升高(390±7cm / s)和机械刚度(3396±1072kPa),以及培养的(+)PVAT动脉的机械刚度(3292± 716kPa)(全部,P <0.05)的值与年轻人相同。总之,橙皮苷改善了与年龄有关的主动脉僵硬度增加以及PVAT介导的对动脉僵硬的影响。橙皮苷还逆转了PVAT AGE的积累,其中显示PVAT AGE会随着年龄的增长而促进主动脉僵硬。以及培养(+)PVAT(3292±716kPa)的动脉的机械刚度(全部,P <0.05),其值与年轻人相同。总之,橙皮苷改善了与年龄有关的主动脉僵硬度增加以及PVAT介导的对动脉僵硬的影响。橙皮苷还逆转了PVAT AGE的积累,其中显示PVAT AGE会随着年龄的增长而促进主动脉僵硬。以及培养(+)PVAT(3292±716kPa)的动脉的机械刚度(全部,P <0.05),其值与年轻人相同。总之,橙皮苷改善了与年龄有关的主动脉僵硬度增加以及PVAT介导的对动脉僵硬的影响。橙皮苷还逆转了PVAT AGE的积累,其中显示PVAT AGE会随着年龄的增长而促进主动脉僵硬。
更新日期:2017-08-03
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