Evidence map›Paper›PMID 25722574›Full record

ArticleAsian journal of transfusion science

Impact of hemoglobin nitrite to nitric oxide reductase on blood transfusion for resuscitation from hemorrhagic shock.

Chad Brouse, Daniel Ortiz, Yan Su, Bryan Oronsky, Jan Scicinski, Pedro Cabrales

Open access · diamondAbstract read
In one paragraph

Article in Asian journal of transfusion science. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 27% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.

  1. Pooled it
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Chad BrouseRadioRx, Inc., Mountain View, CA 94040, USA.
Daniel OrtizDepartment of Bioengineering, University of California, San Diego, La Jolla, CA 92093, USA.
Yan SuDepartment of Bioengineering, University of California, San Diego, La Jolla, CA 92093, USA.
Bryan OronskyRadioRx, Inc., Mountain View, CA 94040, USA.
Jan ScicinskiRadioRx, Inc., Mountain View, CA 94040, USA.
Pedro CabralesDepartment of Bioengineering, University of California, San Diego, La Jolla, CA 92093, USA.
University of California, San Diego · US

Funding

New Paradigms in the Design of Blood SubstitutesP01HL071064 · NHLBI · YESHIVA UNIVERSITY · PI FRIEDMAN, JOEL M · 2002 to 2006
$11.8M
BLOOD FLOW AND RHEOLOGY IN THE VENOUS MICROCIRCULATIONR01HL052684 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI CABRALES, PEDRO · 1996 to 2011
$3.3M
TRANSFUSION TRIGGER EXTENSION BY PLASMA EXPANDERSR01HL062354 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI INTAGLIETTA, MARCOS · 2000 to 2009
$2.9M
NHLBI NIH HHS P01 HL071064NHLBI NIH HHS R01 HL052684NHLBI NIH HHS R01 HL062354
6 · The paper itself

Abstract

backgroundTransfusion of blood remains the gold standard for fluid resuscitation from hemorrhagic shock. Hemoglobin (Hb) within the red blood cell transports oxygen and modulates nitric oxide (NO) through NO scavenging and nitrite reductase.

aimsThis study was designed to examine the effects of incorporating a novel NO modulator, RRx-001, on systemic and microvascular hemodynamic response after blood transfusion for resuscitation from hemorrhagic shock in a hamster window chamber model. In addition, to RRx-001 the role of low dose of nitrite (1 × 10(-9) moles per animal) supplementation after resuscitation was studied. MATERIALS AND

methodsSevere hemorrhage was induced by arterial controlled bleeding of 50% of the blood volume (BV) and the hypovolemic state was maintained for 1 h. The animals received volume resuscitation by an infusion of 25% of BV using fresh blood alone or with added nitrite, or fresh blood treated with RRx-001 (140 mg/kg) or RRx-001 (140 mg/kg) with added nitrite. Systemic and microvascular hemodynamics were followed at baseline and at different time points during the entire study. Tissue apoptosis and necrosis were measured 8 h after resuscitation to correlate hemodynamic changes with tissue viability.

resultsCompared to resuscitation with blood alone, blood treated with RRx-001 decreased vascular resistance, increased blood flow and functional capillary density immediately after resuscitation and preserved tissue viability. Furthermore, in RRx-001 treated animals, both mean arterial pressure (MAP) and met Hb were maintained within normal levels after resuscitation (MAP >90 mmHg and metHb <2%). The addition of nitrite to RRx-001 did not significantly improve the effects of RRx-001, as it increased methemoglobinemia and lower MAP.

conclusionRRx-001 alone enhanced perfusion and reduced tissue damage as compared to blood; it may serve as an adjunct therapy to the current gold standard treatment for resuscitation from hemorrhagic shock.

Indexed as

Blood flowemergency medicinehemorrhagemicrocirculationnitriteshocktransfusiontrauma

Identifiers

PMID25722574
PMCPMC4339933
OpenAlexW2047673620

What OpenQuestion holds

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LicenceCC BY-NC-SA
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.