PGE2/TXB2 imbalance in neonatal hypoxemic respiratory failure.

PGE2/TXB2 imbalance in neonatal hypoxemic respiratory failure.
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PGE2/TXB2 失衡导致新生儿低氧性呼吸衰竭。

DOI:
10.1111/j.1651-2227.2007.00237.x
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发表时间:
2007
期刊:
Acta paediatrica (Oslo, Norway : 1992)
影响因子:
--
通讯作者:
Shankaran,S
Shankaran,S
中科院分区:
--
文献类型:
--
作者:
Sood,BG;Delaney-Black,V;Glibetic,M;Aranda,JV;Chen,X;Shankaran,S

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相似文献

背景资料:新生儿低氧性呼吸衰竭(NHRF)肺动脉高压的发病机制与血管收缩介质和血管扩张介质的失衡有关,目的:研究正常新生儿和NHRF新生儿血浆PGE 2、TXB 2及其比值。20例NHRF新生儿应用喷射雾化吸入PGE 1(IPGE 1),剂量分别为25、50、150和300 ng/kg/min,然后撤机。8例NHRF新生儿在IPGE 1前用EIA法测定PGE 2和TXB 2。结果:与正常新生儿相比,控制早产(<37周)和出生后年龄后,NHRF组PGE 2/TXB 2比值显著降低(p < 0.05)。值得注意的是,NHRF组中除一名受试者外,所有受试者的值均<1.0(范围0.1-1.2),而对照组中所有受试者的值均> 1.0(范围1.1-5.2)。结论:与对照组相比,NHRF受试者中较低的PGE 2/TXB 2比值反映了这些患者中血管收缩活性占主导地位,这是肺动脉高压的基础。血浆PGE 2/TXB 2比值对NHRF的诊断和治疗有重要意义。
Background: An imbalance of vaso‐constrictor and ‐dilator mediators has been implicated in the pathogenesis of the pulmonary hypertension accompanying neonatal hypoxemic respiratory failure (NHRF).Aim: To characterize plasma PGE2, TXB2and their ratio in normal newborns and in those with NHRF.Methods: Twenty newborns with NHRF received inhaled PGE1(IPGE1) by jet nebulizer in doses of 25, 50, 150 and 300 ng/kg/min followed by weaning. Blood for PGE2and TXB2assay using EIA was available in 8 neonates with NHRF prior to IPGE1. Umbilical cord arterial samples were also obtained at delivery from 10 normal newborns to serve as controls.Results: Compared to normal newborns, those with NHRF had significantly lower PGE2/TXB2ratios after controlling for preterm gestation (<37 weeks) and postnatal age (p < 0.05). Notably, all subjects except one in the NHRF group had a value of <1.0 (range 0.1–1.2) compared to a value of > 1.0 in all subjects in the Control group (range 1.1–5.2).Conclusions: Lower PGE2/TXB2ratio in subjects with NHRF compared with controls reflects a predominance of vaso‐constrictor activity in these patients as the basis of pulmonary hypertension. Plasma PGE2/TXB2ratio may have important implications for the diagnosis and treatment of NHRF.
DOI: 10.1016/s0021-9258(17)42556-7
发表时间: 1984-12
期刊: The Journal of biological chemistry
影响因子: --
作者:
P. Albert;A. Tashjian
通讯作者: P. Albert;A. Tashjian
DOI: --
发表时间: 1952
期刊: Journal of the National Cancer Institute
影响因子: --
作者:
D. Laszlo;D. M. Ekstein;R. Lewin;K. Stern
通讯作者: K. Stern
DOI: --
发表时间: 1984
期刊: The Journal of biological chemistry
影响因子: --
作者:
Albert,PR;TashjianJr,AH
通讯作者: TashjianJr,AH
DOI: --
发表时间: 1971
影响因子: --
作者:
F. R. Goodman;G. B. Weiss
通讯作者: G. B. Weiss
通过fura-2监测大鼠垂体前叶细胞的细胞内游离钙。
DOI: 10.1016/0024-3205(87)90230-x
发表时间: 1987
期刊: Life sciences
影响因子: 6.1
作者:
Anderson,JM;Yasumoto,T;Cronin,MJ
通讯作者: Cronin,MJ