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Biomedical subjects

J Rhodes

Publications and source records attributed to J Rhodes.

At least 271 records · Page 15Linked to original sources

Tumor surveillance: how tumors may resist macrophage-mediated host defense.

Both normal human serum and supernatant from explanted malignant tumors contained a heat-stable low-molecular-weight factor that inhibited monocyte activation in vitro. In contrast, serum from individuals with solid tumors enhanced monocyte activation. It is suggested that the systemic activation of monocytes that occurs in malignant disease may be an appropriate host response but that successful tumors may continue to grow because they subvert the normal physiological signal for inhibition of macrophage activation.

Binding Sites↗

Atopic disease in ulcerative colitis and Crohn's disease.

Three hundred patients with ulcerative colitis, 200 with Crohn's disease and matched control subjects completed questionnaires about atopic disease. They were asked whether they had ever suffered from asthma, hay fever, allergic rhinitis or eczema; in ulcerative colitis all of these features occurred with twice the frequency, but in Crohn's disease only eczema was more common than in controls.

Asthma↗

A nitroindanedione mast cell stabiliser in the treatment of ulcerative colitis: a controlled trial.

An orally absorbed mast cell stabiliser (BRL-10833) has been compared with placebo in a double-blind controlled trial in twenty-five patients with ulcerative colitis; patients received each treatment for one month. There was no significant clinical improvement in symptoms or sigmoidoscopic findings with the drug but there was significant improvement in the histological appearance of rectal biopsies during active treatment.

Adult↗

Antacids and peptic ulcer--a reappraisal.

Antacids can reduce gastroduodenal acidity for long periods if taken in substantial quantities after food. Their healing effect on gastric ulcer is minimal, if present at all, and easily overwhelmed by the benefit obtained from admission to hospital. Intensive antacid therapy appears effective in healing duodenal ulcer and preventing haemorrhage from stress ulcer, and is comparable in these respects with cimetidine but with a higher incidence of side-effects. Clinical impression strongly suggests that antacids relieve pain in peptic ulcer but objective confirmation is lacking.

Aluminum Hydroxide↗

Incidence of Crohn's disease in Cardiff between 1934-1977.

The incidence of Crohn's disease in Cardiff between 1934 and 1977 has been examined using hospital diagnostic indices and supplemented in recent years by personal records from clinicians. A total of 232 cases of Crohn's disease were confirmed after all the notes had been reviewed. There has been a large increase from 0.18/cases/10(5) of the population per year in the 1930s to 4.8 cases/10(5)/year in the 1970s. The major change in incidence is thought to be real rather than apparent and involves all forms of the disease in each age group. The recognition of Crohn's disease of the colon in recent years appears to have played a minor part in the rise in incidence.

Adolescent↗

Effect of deglycyrrhizinated liquorice on gastric mucosal damage by aspirin.

Gastric mucosal damage induced by giving 60 mg aspirin orally to rats was reduced by simultaneous administration of 100-500 mg deglycyrrhizinated liquorice. Human faecal blood loss induced by 975 mg aspirin orally three times a day was less when 350 mg deglycyrrhizinated liquorice was given with each dose of aspirin.

Adult↗

Low dose steroids and clinical relapse in Crohn's disease: a controlled trial.

The long-term effect of prednisone in Crohn's disease has been examined in a double-blind controlled trial. Clinical relapse, recurrence, and extension of the disease were examined in 64 patients followed-up for up to three years. Fourteen patients were withdrawn because of severe symptoms (eight on prednisone and six controls); the withdrawal rate in both groups was 30% at three years. Nine other patients had radiological recurrence or extension of disease (five prednisone and four controls). Prednisone did not improve the relapse rate, nor did it affect recurrence or extension of disease.

Adolescent↗

Carbenoxolone and incorporation of (3H) glucosamine into gastric mucosa.

The effect of carbenoxolone on incorporation of the labelled sugar, (3H) glucosamine, into rat gastric mucosa was examined. Rats were treated with either 25 mg/kg, or 50 mg/kg or 75 mg/kg carbenoxolone for 10 days. The rats were then killed and the uptake of (3H) glucosamine by gastric mucosal scrapings measured. There was no statistically significant difference in uptake between treated and untreated scrapings. The results do not confirm earlier findings of other investigators which suggested that carbenoxolone promoted gastric ulcer healing by stimulating specific glycosyl transferases to produce a modified mucus.

Animals↗

Nuclear glucocorticoid binding in chronic lymphatic leukemia lymphocytes.

A reliable procedure is described for isolating 3H-triamcinolone acetonide (3H-TA) receptor complexes from purified chronic lymphatic leukemia (CLL) lymphocyte nuclei, based on the use of carbobenzoxy-L-phenylalanine (CBZ-L-phe) to prevent breakdown of hormone-receptor complexes during extraction of nuclei with 0.6M KCl. Using this method, specific nuclear glucocorticoid binding was demonstrated in 14/14 patients with untreated CLL. No correlation was found between levels of nuclear-associated 3H-TA and peripheral white blood cell count or rosetting ability of circulating lymphocytes.

Aged↗