ArticleInternational journal of clinical and experimental medicine2015
Effects of basic drugs on prognosis of acute lung injury in mice.
Article in International journal of clinical and experimental medicine, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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6 authors at 2 institutions in 1 country.
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Abstract
The aim of this study was to investigate the effects of basic drugs that alkalizes blood, on prognosis of acute lung injury in mice. Mice were randomized into three groups: Group normal saline, Group THAM, injected with 3.64% tri-(hydroxymethyl) methylamine (THAM), and Group NaHCO3, injected with 5% NaHCO3 (n=26, each group). The acute lung injury model was established by intraperitoneal injection of lipopolysaccharide (LPS; 50 mg/kg), followed by infusion of varying concentrations of the above solution into tail vein at the rate of 0.5 ml/h (controlled by micro pump) for over 2 h. Thirty minutes later, 6 mice from each group were randomly selected for blood gas analysis; then, the mice were killed and their lung tissues were sampled for detection of relative indicators, and the remaining mice were observed for signs of mortality for 72 h. Arterial pH, bicarbonate (HCO3 (-)), and BE and mortality of group THAM and NaHCO3 increased significantly compared to the corresponding parameters of the group normal saline (P<0.05); compared to the group normal saline, group NaHCO3 had increased blood [Na(+)] and decreased [K(+)] and [Ca(2+)] (P<0.05). Blood [Na(+)] of group THAM decreased while the lactic acid concentration increased (P<0.05) compared to the corresponding values of the group normal saline. Malondialdehyde (MDA) and myeloperoxidase (MPO) activity and wet-to-dry lung weight ratio (W/D) of group THAM and NaHCO3 increased significantly relative to group normal saline (P<0.05). Compared with the biopsy results of (A), pathological biopsy of (B) and (C) clearly revealed alveolar wall thickening, edema of alveolar epithelial cells, and infiltration of large neutrophils. Alkalizing blood could neither inhibit inflammatory reactions in LPS mouse model nor reduce the mortality rate of mice with acute lung injury, while excessive alkalization of blood could increase mice mortality.
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26770536PMC4694436W2413190794What OpenQuestion holds
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