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Biomedical subjects

G M Mills

Publications and source records attributed to G M Mills.

31 records · Page 2Linked to original sources

Antinuclear antibodies in sickle cell disease.

The frequency of antinuclear antibodies (ANA) and other antinuclear factors was prospectively evaluated in patients with sickle cell disease (SCD). Ten of 44 patients studied (22.7%) had positive ANA determinations at titers greater than or equal to 1:40 compared to 3 of 46 healthy controls (6.5%; p less than 0.03). Eight SCD patients had ANA titers of 1:160 or greater compared to none of the controls (p less than 0.003). No antibodies directed against other nuclear factors were found. An analysis of the patient histories revealed no statistical differences between the ANA-positive and ANA-negative SCD patients when correlated with disease activity.

Adolescent↗

Phase II evaluation of bisantrene in acute leukemia. A Southwest Oncology Group Study.

Twenty-nine patients with heavily pretreated acute leukemia in relapse were treated with bisantrene (maximum dose 120 mg/m2/day x 5) in a phase II study. Twenty-seven of the 29 patients were evaluable for response, receiving a total of 53 courses of treatment. There were three complete remissions (11%) lasting 27, 107, and 115 days. One brief partial remission of 43 days was also seen for a total response rate of 15%. Toxicity was mainly limited to the expected myelotoxicity with minimal nonhematologic toxicity seen. Although the complete remission rate is low, an antileukemic effect was seen in the majority of the patients treated. Sixty-one percent of the patients had at least a 50% decrease in the circulating blast count and 32% had at least a 50% decrease in the number of bone marrow blasts. We conclude that bisantrene does have an antileukemic effect, but that the optimal starting dose is not yet established.

Acute Disease↗

Parathyroid hormone and anaemia--an erythrocyte osmotic fragility study in primary and secondary hyperparathyroidism.

Parathyroid hormone (PTH) has been shown in vitro to enhance erythrocyte osmotic fragility (EOF) and has been incriminated as a factor in the anaemia seen in patients with primary hyperparathyroidism and in patients with renal disease and secondary hyperparathyroidism. Enhanced EOF has also been shown in patients with chronic renal failure but did not correlate with PTH levels. We studied a group of patients with primary hyperparathyroidism with and without anaemia, and patients with secondary hyperparathyroidism and anaemia. We found that EOF studies in these patients did not differ from normal control groups and that there was no relation between PTH, EOF, and haematocrit in either study group. We conclude that PTH over a range of concentrations seen in vivo does not affect erythrocyte osmotic fragility or cause anaemia.

Adult↗

Immune thrombocytopenia and ulcerative colitis.

We have described a patient with simultaneous onset of antibody-positive immune thrombocytopenic purpura and ulcerative colitis, an association that must be extremely rare. Although the colitis responded to steroid therapy, the thrombocytopenia required splenectomy. The antibody was monomeric, with HLA specificity against A3 and B8 platelets.

Aged↗

Reversible acute sensorineural hearing loss associated with essential thrombocytosis.

The isolated occurrence of reversible acute sensorineural hearing loss associated with thrombocytosis without other neurologic or hematologic manifestations has not been previously reported in the English literature, to our knowledge. We treated a patient with essential thrombocytosis who developed acute sensorineural hearing loss associated with marked thrombocytosis and in whom the hearing loss reversed after plateletpheresis.

Aged↗

The hypereosinophilic syndrome in acute lymphocytic leukemia.

A 21-year-old white man presented with marked peripheral blood eosinophilia that later evolved into acute lymphocytic leukemia (FAB2 ALL). He died precipitously from refractory congestive heart failure immediately after antileukemic therapy was started. Autopsy revealed multiorgan infiltration with eosinophils and the typical cardiac findings of Löfflers endocarditis. Clinical and pathologic features of this and the 14 other cases of ALL and the hypereosinophilic syndrome (HES) reported in the English-language literature are described. The eosinophilia in these cases is reactive and resolves with successful leukemia remission induction. Hydroxyurea is effective in rapidly lowering eosinophil counts. Early use of hydroxyurea in this disease may improve patient survival and decrease the risk of sudden cardiac death.

Adult↗

Predictive value of trypan blue exclusion viability measurements for colony formation in a human tumor cloning assay.

Specimens (173) were evaluated to assess the predictive value of cell viability as measured by Trypan Blue exclusion on colony formation in a human tumor cloning system. Overall, there was no significant correlation between Trypan Blue exclusion-determined viability and colony formation in soft agar for these specimens (p = 0.43). This lack of significant correlation was maintained for primary, metastatic, solid, and fluid tumor specimens. These data suggest that, in this soft agar system, specimens containing cells with low Trypan Blue exclusion viability should not be excluded from testing, and that it may not be advantageous to plate on the basis of "viable cells" as measured by Trypan Blue exclusion.

Cell Survival↗

Radical combined treatment of locally extensive head and neck cancer in the elderly.

PURPOSE: Few studies have described the effects of aggressive combined therapy for locally extensive head and neck cancer in the elderly. Our study evaluated the outcome of this particular cohort of patients after such treatments. METHODS: Survival, failure, morbidity, and complication rates were determined retrospectively in 43 elderly patients with stage III or IV head and neck cancer who underwent curative surgery and postoperative radiotherapy (n = 33) or neoadjuvant, 3-drug chemotherapy plus radiotherapy (n = 10) between the years 1977 and 1992. RESULTS: The crude survival rate at 3 years was 27% in patients managed by surgery plus radiotherapy, and 30% in individuals treated with chemoradiation; the corresponding locoregional failure rates were 23% and 30%; and the distant failure rates were 13% and 0%, respectively. The acute toxicity rate was 12% in the surgery plus radiotherapy group and 30% in the chemoradiation patients; the corresponding late complication rates were 0% and 10%. There were no toxic deaths. CONCLUSION: Radical combined treatments can be performed safely and achieve long-term, disease-free survival in selected elderly patients with locally extensive head and neck cancer.

Aged↗

Cranial irradiation in patients with brain metastasis: a retrospective study of timing.

PURPOSE: A retrospective study was conducted to determine the importance of the interval between diagnosis of brain metastasis (BRM) and cranial irradiation (CI). METHODS: The charts of 92 patients with a known diagnosis of cancer and suspected BRM as shown on radioimaging studies were reviewed retrospectively. The median interval between diagnosis and the onset of CI for BRM was five days; one group of 48 individuals received CI within an interval of five days, and another group of 44 patients after an interval of five days. Symptom palliation, objective responses to CI and survival were evaluated in both groups. RESULTS: Neither symptomatic and objective responses to treatment nor overall survival differed significantly between the patient groups. CONCLUSION: These observations suggest that while CI is beneficial to most patients with BRM, its timing after the diagnosis of BRM may not seriously affect patient outcome.

Adult↗