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Biomedical subjects

R P Roth

Publications and source records attributed to R P Roth.

7 recordsLinked to original sources
PubMed1996

Cryptorchidism and delayed testicular descent in Florida black bears.

Retained testes were found in 11 (16%) of 71 black bears (Ursus americanus) examined over a 3-year period in Florida (USA). Four of the 11 bears were older than one year and weighed more than 32 kg; therefore, they were considered to be cryptorchid. The remaining seven bears may have had delayed testicular descent due to their apparent normal immature development. This is the first known published report of the prevalence of cryptorchidism and apparently normal delayed testicular descent in a black bear population.

Age Factors↗
PubMedDate not supplied

Nasal decongestant activity of pseudoephedrine.

The effectiveness of orally administered pseudoephedrine in patients with acute or chronic nonsuppurative rhinitis was evaluated under double-blind conditions. Intranasally administered ephedrine which was given to all patients at the end of this study served as the positive control. Marked nasal decongestant effects of a single oral dose of pseudoephedrine (60 mg tablet), as determined by a modified passive anterior, rhinometric technique occurred within 30 minutes and were maintained for at least four hours. The mean nasal decongestant response (delta % of baseline) of 57.2% was associated with a mean peak, plasma pseudoephedrine level of 274 ng/ml. In addition, the maximum response to oral pseudoephedrine treatment was equivalent to the response produced by ephedrine nasal spray. These results suggest that pseudoephedrine is an orally, effective nasal decongestant.

Acute Disease↗