[ RadSafe ] Interesting study with a potential radiation mitigating drug

[Colette Tremblay]

What did Dr. Gray do?

-----Message d'origine-----
De : radsafe-bounces at health.phys.iit.edu [mailto:radsafe-bounces at health.phys.iit.edu] De la part de JPreisig at aol.com
Envoyé : 23 janvier 2015 19:49
À : radsafe at health.phys.iit.edu
Objet : Re: [ RadSafe ] Interesting study with a potential radiation mitigating drug

Colette/Radsafe:
 
     Thanks for the explanation, Colette.  Sadly,  it reminds me a bit about Dr. Gray (UCLA???) and others trying to save lives  after Chernobyl.
 
     Joe Preisig
 
 
In a message dated 1/23/2015 3:45:17 P.M. Eastern Standard Time, Colette.Tremblay at ssp.ulaval.ca writes:

Hi  Joe,

The investigators used a chemical named DBIBB to mitigates in mice  the injuries caused by high-dose ionizing radiation. 

The substance,  when administered up to 72 hours postirradiation, reduced mortality in mice.  DBIBB mitigated the gastrointestinal radiation syndrome, reduced programmed  cell death and enhanced DNA repair in the animals. DBIBB also increased the  survival of mice suffering from the hematopoietic acute radiation syndrome  after total-body irradiation. 

The endpoint of the study was mortality  at day 30 following a 15 Gy whole body dose. In the control  group, only  one mouse out of 14 per group survived to day 30 (93% lethality), and the  mean survival time was 8 days. In a group receiving low dose DBIBB (1 mg/kg,  26 hour after irradiation), 2 mice were alive at day 30 and the mean survival  time was 15 days. In the high dose group (10 mg/kg), 10 out of 14 mice were alive on day 30. It opens up the possibility of future treatments that could administered hours, even days, after  irradiation.

Colette

-----Message d'origine-----
De :  radsafe-bounces at health.phys.iit.edu  
[mailto:radsafe-bounces at health.phys.iit.edu] De la part de  JPreisig at aol.com
Envoyé : 22 janvier 2015 16:29
À :  radsafe at health.phys.iit.edu
Objet : Re: [ RadSafe ] Interesting study  with a potential radiation 
mitigating drug

Colette,

What does all that mean???

Joe  Preisig




In a message dated 1/22/2015 3:44:42 P.M. Eastern  Standard Time, 
Colette.Tremblay at ssp.ulaval.ca writes:

The   citation is :

Patil et al., Combined Mitigation of the  Gastrointestinal  and 
Hematopoietic Acute Radiation Syndromes by an LPA2  Receptor-Specific  Nonlipid 
Agonist, Chemistry & Biology  (2015),
http://dx.doi.org/10.1016/j.chembiol.2014.12.009

The  complete paper is  available free of charge (see link at the end of  
the
citation)

Colette

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[cid:image002.gif at 01D0365A.37F58C20]

[cid:image004.gif at 01D0365A.37F58C20]<http://www.ulaval.ca/>




Colette   Tremblay
Spécialiste en radioprotection
Service de sécurité et de   prévention
Pavillon Ernest-Lemieux, local 1533
Poste    2893

Avis  de
confidentialité<http://www.rec.ulaval.ca/lce/securite/confidentialite.htm>


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