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Biomedical subjects

L J Roth

Publications and source records attributed to L J Roth.

At least 19 recordsLinked to original sources
PubMed2004

Topical benzydamine cream and the relief of pressure pain.

OBJECTIVE: To determine whether topical benzydamine hydrochloride 3% cream is more effective than placebo in reducing pain related to pressure areas in palliative care patients. DESIGN: Randomized double-blind, placebo-controlled trial. SETTING: Three specialist palliative care units in the north of England, with local ethical committee approval for all sites. SUBJECTS: Hospice in-patients with pain related to pressure areas. INTERVENTIONS: A single application of either benzydamine hydrochloride 3% cream or placebo cream to the painful pressure area. MAIN OUTCOME MEASURES: Pain assessed using 100 mm VAS, an 11-point numerical pain score and a five-point pain relief score. RESULTS: There was no statistically significant difference between topical benzydamine hydrochloride 3% cream and placebo cream in reducing pain related to pressure areas in palliative care patients. CONCLUSIONS: This study does not demonstrate a statistically significant difference between the two treatments. However the study does provide reliable information with respect to the use of different pain measurement tools in late-stage palliative patients. It also provides information regarding the baseline characteristics of this group of patients which may be useful in the planning of any future similar studies.

Administration, Cutaneous↗
PubMed1999

The role of endoscopic biliary stents in palliative care.

This article reviews the role of endoscopic biliary stents in palliative care. In particular it focuses on the indications for stents, and recognition and management of possible complications. These issues are illustrated with three case reports.

Aged↗
PubMed1996

The effect of endolymphatic sac excision in Menière disease.

The role of the endolymphatic sac in the pathoetiology of Menière's disease has been extensively studied but remains controversial. Likewise, the mechanism behind the efficacy of the endolymphatic-mastoid shunt procedure in Menière's disease remains obscure. The central hypothesis of this study is that the endolymphatic-mastoid shunt procedure is a destructive rather than a drainage procedure. Therefore removal of the extraosseous endolymphatic sac with scarring of the intraosseous portion may be more destructive and thereby more effective in the treatment of Menière's disease than conventional shunt placement alone in the extraosseous endolymphatic sac. This study reports a 2-year follow-up on the effect of complete removal of the extraosseous endolymphatic sac for 10 patients with intractable Menière's disease and 10 matched control Menière's disease patients undergoing conventional endolymphatic-mastoid shunt surgery. This study showed no statistical difference in the change in hearing, vertigo, or disability in the two groups.

Adult↗
PubMed1979

Histofluorescence techniques provide evidence for dopamine-containing neuronal elements in canine kidney.

Changes induced by hydrochloric acid in the excitation spectrum of catecholamine fluorophores associated with the innervation of the canine renal vasculature show that there are neuronal elements at the glomerular vascular poles containing predominantly dopamine. In contrast, the catecholamine fluorescence in the periadventitial layer of the arcuate arteries is derived from norepinephrine. The dopamine-containing structures may represent the prejunctional counterpart to the pharmacologically identified dopamine receptors in the renal vasculature. As such, this system may be involved in the normal regulation of renal blood flow and renin release.

Animals↗
PubMed1978

An artifact of liquid emulsion autoradiography.

The localization of 3H-opiates in the myenteric plexus of the guinea pig ileum is subject to systematic artifact when stretch preparations of the myenteric plexus are dipped into liquid Kodak NTB-3 emulsion for autoradiography. The cause of the artifact was determined to be a discontinuous distribution, or retraction, of emulsion over plexuses. The apposition of frozen freeze-dried ileal sections to dried photographic emulsion avoids this source of error.

Animals↗
PubMed1976

(3H)morphine localization in myenteric plexus.

Preferential binding of 3H-labeled morphine to satellite cells, but not to large neurons in the myenteric plexus, is demonstrated autoradiographically. Microfluorometric spectra of the plexus show nerve fibers that contain norepinephrine and impinge on satellite cells. Cells containing serotonin occur occasionally on longitudinal muscle outside the myenteric plexus.

Animals↗
PubMed1971

( 3 H)lysergic acid diethylamide: cellular autoradiographic localization in rat brain.

Intravenous administration of [(3)H]lysergic acid diethylamide(LSD) to rats resulted in accumulation of the drug in the brain within 15 minutes. Autoradiographic methods were used to differentiate free and bound [(3)H]LSD in brain tissue. Free [(3)H]LSD was generally distributed in the pituitary and pineal glands, cerebellum, hippocampus,and choroid plexus. Bound [(3)H]LSD was localized in neurons of the cortex, caudate nucleus, midbrain, and medulla,as well as in choroid plexus epithelium.

Animals↗