Risky Teen Driving in a Rural Southern State.

Objective: Alabama is one of the five US states with the highest teen driving mortality. We recruited teen drivers to participate in a questionnaire regarding high-risk driving behaviors.

Methods: Teens were recruited from a large county school system to participate in a voluntary anonymous survey.

Bioavailability of (+)-methamphetamine in the pigeon following an intramuscular dose.

Pigeons are used frequently as subjects in behavioral pharmacology research. An advantage of the pigeon is an exceedingly vascular breast muscle, which is easily accessible for injections. The purpose of these studies was to provide a profile of the pharmacokinetics of (+)-methamphetamine (METH) and (+)-amphetamine (AMP), a pharmacologically active metabolite, in pigeons (n=6) after intramuscular (i.

Surface-etching enhances titanium implant osseointegration in newly formed (rhBMP-2-induced) and native bone.

Purpose: The influence of surface modifications on osseointegration in newly formed bone is not well established. The purpose of this study was to compare osseointegration at acid-etched versus turned implants in newly formed and native bone.

Methods: Supra-alveolar peri-implant defects were created in 8 hound/Labrador mongrel dogs.

Effects of anti-phencyclidine and anti-(+)-methamphetamine monoclonal antibodies alone and in combination on the discrimination of phencyclidine and (+)-methamphetamine by pigeons.

Rationale: Drug-specific monoclonal antibodies against phencyclidine (PCP) and (+)-methamphetamine [(+)-METH] should bind to these drugs to block their discriminative stimulus effects.

Objectives: To determine if mouse monoclonal antibodies against PCP and (+)-METH can block the discriminative stimulus effects of the drugs in pigeons.

Materials And Methods: Pigeons were trained to discriminate among intramuscular injections of saline, 1 mg/kg PCP, and 2 mg/kg (+)-METH.

rhBMP-2 significantly enhances guided bone regeneration.

Background: Previous studies have shown a limited potential for bone augmentation following guided bone regeneration (GBR) in horizontal alveolar defects. Surgical implantation of recombinant human bone morphogenetic protein-2 (rhBMP-2) in an absorbable collagen sponge carrier (ACS) significantly enhances bone regeneration in such defects; however, sufficient quantities of bone for implant dentistry are not routinely obtained. The objective of this study was to evaluate the potential of rhBMP-2/ACS to enhance GBR using a space-providing, macro-porous expanded polytetrafluoroethylene (ePTFE) device.