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Androstenetriol improves survival in a rodent model of traumatic shock.
- Source :
-
Resuscitation [Resuscitation] 2006 Dec; Vol. 71 (3), pp. 379-86. Date of Electronic Publication: 2006 Sep 18. - Publication Year :
- 2006
-
Abstract
- Unlabelled: Trauma results in activation of the hypothalamic-pituitary-adrenal axis to mediate a cascade of neurohormonal changes as a defensive mechanism. Its prolongation, however, leads to a hypermetabolic, hypoperfused, and immunosuppressed state, setting the stage for subsequent sepsis and organ failure. Androstenetriol (5-androstene-3beta, 7beta, 17betatriol - AET), a metabolite of dehydroepiandrosterone, up-regulates the host immune response markedly, prevents immune suppression and controls inflammation, leading to improved survival after lethal infections by several diverse pathogens and lethal radiation. Such actions may be useful in improving survival from traumatic shock.<br />Hypothesis: The neurosteroid AET will increase survival following traumatic shock.<br />Methods: A combat relevant model of traumatic shock was used. Male Sprague-Dawley rats were anesthetized, catheterized and subjected to soft tissue injury (laparotomy). Animals were allowed to regain consciousness over the next 0.5 h and then bled 40% of their blood volume over 15 min. Forty-five minutes after the onset of hemorrhage animals were randomized to receive either a single subcutaneous dose of AET (40 mg/kg, sc) or vehicle (methylcellulose). Volume resuscitation consisted of l-lactated Ringer's (three times the shed blood volume), followed by packed red blood cells (one-third shed red cell volume). Animals were observed for three days.<br />Results: A total of 24 animals were studied. Of the 12 animals randomized to receive AET, all (100%) survived compared to 9 of 12 animals (75%) randomized to receive the vehicle (p < 0.05).<br />Conclusion: AET significantly improved survival when administered subcutaneously in a single dose in this rodent model of traumatic shock. Further survival and mechanism studies are warranted.
- Subjects :
- Androstenols therapeutic use
Animals
Chemokine CCL2 blood
Disease Models, Animal
Immunologic Factors therapeutic use
Interleukin-1alpha blood
Male
Pilot Projects
Random Allocation
Rats
Rats, Sprague-Dawley
Research Design
Shock, Traumatic blood
Shock, Traumatic physiopathology
Shock, Traumatic therapy
Androstenols pharmacology
Immunologic Factors pharmacology
Resuscitation
Shock, Traumatic drug therapy
Subjects
Details
- Language :
- English
- ISSN :
- 0300-9572
- Volume :
- 71
- Issue :
- 3
- Database :
- MEDLINE
- Journal :
- Resuscitation
- Publication Type :
- Academic Journal
- Accession number :
- 16982126
- Full Text :
- https://doi.org/10.1016/j.resuscitation.2006.03.020