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At least 1,621 records · Page 90Linked to original sources
PubMed1985

Hapten binding assay using guinea pig macrophages.

An assay for testing the binding of haptens to antigen-presenting cells was developed. The test consists of consecutive incubation of macrophages with the tested hapten, followed by incubation with a radioactively labeled standard. If the first hapten occupies a certain number of binding sites, the other one (radioactively labeled standard) reveals reduced binding. The binding assay in the present modification is fully suitable for measuring the binding of water-soluble haptens. It was found that from a panel of tested haptens, DNFB, beta-bromostyrol and phenylacetaldehyde exhibit strong binding.

Acetaldehyde↗
PubMed1984

Meduna and the origins of convulsive therapy.

Convulsive therapy for dementia praecox was first used by the Hungarian neuropsychiatrist Ladislas Meduna in January 1934. On the 50th anniversary the author discusses the introduction of the treatment, the role of a theory of the biological antagonism between epilepsy and schizophrenia, and the contributions of Meduna, Sakel, Cerletti, and Bini. He also describes the changes in usage and methods and the impact of psychotropic drugs on the practice of convulsive therapy.

Antipsychotic Agents↗
PubMedDate not supplied

Congenital anosmia: detection thresholds for seven odorant classes in hypogonadal and eugonadal patients.

Detection thresholds for a representative from each of seven odorant classes (putrid, pepperminty, ethereal, camphoraceous, pungent, musky, floral) were determined by double-blind smell testing of seven normal males, six normal females, 6 patients with uncomplicated congenital anosmia and 13 patients with the syndrome of congenital anosmia and hypogonadotropic hypogonadism (the Kallmann syndrome, olfactogenital dysplasia). The median detection thresholds did not differ significantly between hypogonadal and eugonadal anosmics for any of the odorants, suggesting that the endocrine deficit does not result from inadequate rhinencephalic input to brain centers controlling gonadotropin release. Phenylethylmethylethylcarbinol (PEMEC), a stable chemical of the floral class, was detecred at very low concentrations (10(-6) to 10(-8) M in water) by all normals tested. Since no patient with congenital anosmia was able to distinguish even undiluted PEMEC from water, we suggest that this compound is the material of choice for convenient, rapid and objective testing of the sense of smell (cranial nerve I).

Adolescent↗
PubMed1978

Effect of Vaporub and petrolatum on frequency and amplitude of breathing in children with acute bronchitis.

Transthoracic impedance pneumographs from sixty children suffering from acute bronchitis were studied to investigate the effect of Vaporub on the amplitude and frequency of breathing. The experimental technique consisted of an observation period of 70 minutes after a 3-minute treatment with Vaporub or petrolatum as a control. Before the treatment, after an adaptation period of 20 minutes, the pneumogram was recorded for 10 minutes, after the treatment pneumograms were recorded for 70 minutes. The pneumograph data demonstrated an early increase in amplitude up to 33.0%, with subsequent return to slightly above control for the remaining test period. Such an increase was not observed in the Petrolatum-treated group. Breathing frequency demonstrated a progressive decrease to 19.4% of the pre-treatment value at the end of the test period, while the Petrolatum controls were between + 3.6 to - 4.2% difference. It is concluded that Vaporub treatment results in a change in breathing patterns. This, together with the clinical observation of the children suggests a condition of 'easier breathing'.

Acute Disease↗
PubMed1978

Effect of Vaporub and petrolatum on skin and rectal temperature in children with acute bronchitis.

Fifty-six children, suffering from acute bronchitis were studied. Skin temperature and rectal temperature were simultaneously recorded over a period of 90 minutes after 3-minute rub therapy on chest and back with either Vaporub or its base Petrolatum. A statistically significant increase in skin temperature as compared to the pre-treatment was observed; with Vaporub, however, the increase was 1.1 degrees C on average at the highest point of a large plateau reaching from 30 to 90 minutes after the treatment. Rubbing Petrolatum alone showed 0.2 degrees C on average on the top of the temperature plateau. Rectal temperature did not show significant changes with either therapy. On comparing temperature data of the same type in healthy children, the time course of the temperature elevation (which also was observed in healthy children after Vaporub treatment), was different from that of bronchitic children. In the bronchitic children the temperature rise was still 0.9 degrees C 60 minutes after treatment. In the healthy children after 60 minutes, the temperature elevation was only 0.4 degrees C above the pre-treatment value.

Acute Disease↗
PubMed1978

Effect of Vaporub on the restlessness of children with acute bronchitis.

In this study pneumographs of children with acute bronchitis treated with Vicks Vaporub or Petrolatum were used. Movement artifacts were used as a measure of the so-called "restlessness" of the children. The experimental schedule consisted of a 10-minute phase of recording before a 3-minute treatment with Vaporub or Petrolatum, followed by a 70-minute observation period, during which time pneumograms were also recorded. Thirty-four Vaporub-treated children showed an increase in periods without movement artifacts of up to 213.8%, the Petrolatum controls, twenty-six children, up to 62.4% as compared to the corresponding pre-treatment values. It is concluded that Vaporub is effective in decreasing restlessness in children suffering from acute bronchitis. This effect is quite marked and cannot be due solely to psychological effects of the rub therapy, or to effects of petrolatum without aromatics.

Acute Disease↗
PubMed2004

Protective effect of Arque-Ajeeb on acute experimental diarrhoea in rats.

BACKGROUND: Diarrhoea is a major health problem for children worldwide, accounting for 5-8 million deaths each year. Arque-Ajeeb (AA) is a compound formulation of Unani medicine. It is reputed for its beneficial effects in the treatment of diarrhoea and cholera, but the claim of its efficacy is yet to be tested. Therefore the present study has been planned to investigate the real efficacy of this drug in rats. METHODS: The effect of Arque-Ajeeb was investigated for antidiarrhoeal activity against charcoal-induced gut transit, serotonin-induced diarrhoea and PGE2-induced small intestine enteropooling in rats. The control, standard and test groups of experimental animals were administered with normal saline (p.o.), diphenoxylate hydrochloride (5 mg/kg, p.o.) and Arque-Ajeeb (0.07 ml and 0.14 ml/kg, p.o.) respectively except the control group of PGE2-induced small intestine enteropooling which received only 5% ethanol in normal saline (i.p.). Charcoal (10 ml/kg, p.o.) and serotonin (600 micrograms/kg, i.p.) were administered after 30 min, while PGE2 (100 micrograms/kg, p.o.) was administered immediately afterwards. The distance traveled by charcoal in small intestine was measured after 15 and 30 min of charcoal administration, diarrhoea was observed every 30-min for six hour after serotonin administration and the volume of intestinal fluid was measured after 30 min of PGE2 administration. RESULTS: Arque-Ajeeb (0.07 ml and 0.14 ml/kg) significantly inhibited the frequency of defaecation and decreased the propulsion of charcoal meal through the gastrointestinal tract, reduced the wetness of faecal droppings in serotonin-induced diarrhoea and also reduced the PGE2-induced small intestine enteropooling. CONCLUSION: Arque-Ajeeb may have potential to reduce the diarrhoea in rats. Thus the drug may prove to be an alternate remedy in diarrhoea.

Animals↗