Biomedical subjects

P Racine

Publications and source records attributed to P Racine.

9 recordsLinked to original sources

PubMed2005

Quenching of singlet molecular oxygen by Commiphora myrrha extracts and menthofuran.

The quenching activity against singlet oxygen, an actor of lipid peroxidation and DNA degradation, of the essential oil and resinoid of Commiphora myrrha from Somalia has been studied and compared to DL-alpha-tocopherol using 1,3-diphenylisobenzofuran (DPBF) as a probe. To insure that the furan ring was the site of the reaction, experiments were conducted with menthofuran. The essential oil and menthofuran show a higher activity than DL-alpha-tocopherol, suggesting their potential usefulness to neutralise this deleterious form of molecular oxygen.

Commiphora↗

PubMed2001

Academic-community collaboration. An ecology for early childhood violence prevention.

The growing supportive evidence for multi-faceted approaches to violence prevention certainly demand that multi-agency collaborations will continue to proliferate as communities engage in early childhood prevention strategies. These collaborations often include partnerships between members of academia and community agencies that often produce unique challenges and benefits related to diverse experiences, skills, agendas, and practical constraints. This article describes the Jacksonville First and Best Teacher Initiative, an example of one such collaborative model for violence prevention, to illustrate many of the principles of effective academic-community collaborations and lessons learned in addressing the specific challenges of such programs.

Child, Preschool↗

PubMed1975

Rapid lactate determination with an electrochemical enzymatic sensor: clinical usability and comparative measurements.

Lactate measurements can be performed within 2-3 minutes after blood withdrawal from the patients by using an electrochemical enzymatic sensor for lactate. The values obtained reflect the actual state of the patient which is not the case with the slow classical method using lactate dehydrogenase and NAD. The sensor is reproducible and the influence of the main reducing substances found in the blood is small enough to be of no clinical significance. Drugs commonly used in intensive care stations have no influence on the sensor. In vitro lactate production of the blood cells has been studied under various conditions. 66 pairs of comparative measurements between the classical method and the lactate sensor resulted in a good correlation coefficient.

Acidosis↗

PubMed1974