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Biomedical subjects

M M Reid

Publications and source records attributed to M M Reid.

At least 145 records · Page 8Linked to original sources
PubMed1988

Immunocytochemical detection of tumours of neuroectodermal origin.

Immunocytochemical methods were applied to bone marrow aspirate and cerebrospinal fluid specimens to show cellular reactivity with the monoclonal antibody UJ13A, which recognises an antigen expressed by cells of neuroectodermal origin. The antigen remained stable after air drying and appropriate fixation. In five patients with various neuroectodermal tumours the diagnostic advantages of these techniques were clear; they can be performed even when only very small amounts of diagnostic material are available.

Adult↗
PubMed1988

Myeloproliferative disease in children: a demographic study.

Over eight years, eight cases of childhood myeloproliferative disease were recognised in the northern region of England (population 3.1 million). Five were classic chronic myeloid leukaemia (CML) and the three others, forms of myeloproliferative disease. No case of juvenile CML was recognised. With the exception of CML, "adult" type myeloproliferative disease of children is underrepresented in the literature and its natural history remains unknown.

Adolescent↗
PubMed1988

Skin explant culture as a model for cutaneous graft-versus-host disease in humans.

An in vitro skin explant model for graft-versus-host disease (GVHD) in humans has been used to study the role of effector T cells in the histological pathogenesis of GVHD. In 11 of 12 experiments clear GVHD changes of grades II-IV were induced in HLA-mismatched skin explants cultured with allogeneic T cells sensitized by in vitro mixed lymphocyte culture. The role of effector T cells was investigated by comparing results before and after removal of CD3 positive cells, and CD4 positive and CD8 positive T cell-subsets by antibody and complement cytolysis from responder populations. Only total removal of CD3 positive T cells prevented histopathological lesions of GVHD in the skin biopsy specimens. The results also demonstrated that the CD4 positive population caused the greatest degree of GVHD in vitro in skin biopsy specimens and direct infiltration into skin by cells is not required for changes to become evident. These results confirm the early results on animal models and demonstrate the use of the skin explant model as a tool for studying the biology of GVHD in humans.

Antigens, Differentiation, T-Lymphocyte↗
PubMed1987

Familial myelodysplasia: progressive disease associated with emergency of monosomy 7.

Two brothers developed hypoplastic anaemia with the development in one of refractory anaemia with excess blasts (RAEB) accompanied by emergence of monosomy 7. Both brothers have a constitutional inversion of chromosome 1. Neither shows the increased chromosomal fragility of Fanconi's anaemia or its variants. This family is the third reported in which monosomy 7 has been found when leukaemic or preleukaemic transformation has occurred in patients with familial hypoplastic anaemia.

Adolescent↗
PubMed1987

Cerebral arteriovenous malformation in a neonate: treatment by embolisation.

A neonate with an aneurysm of the vein of Galen was treated by embolisation using Giant-urco coils. Doppler ultrasound examination showed that blood flow in the internal carotid artery decreased while that in the pericallosal artery increased after occlusion, suggesting a 'steal phenomenon' with blood directed preferentially towards the aneurysm.

Cerebral Veins↗
PubMed1987

Chromosomes of metastatic retinoblastoma.

Chromosomal abnormalities were detected in the bone marrow of a girl with disseminated retinoblastoma. One of these abnormalities, i(6p), is characteristic of primary retinoblastoma and its presence confirmed the diagnosis of bone marrow infiltration with retinoblastoma. This approach could be extended to study other tumours of childhood.

Biopsy↗
PubMed1987

Cytogenic investigations in the assessment of response to treatment in neuroblastoma.

In a patient with stage IV disseminated neuroblastoma treated by chemotherapy extensive cytogenetic investigations were performed on the residual primary tumour and bone marrow immediately before myeloablative treatment and autologous marrow rescue. Two abnormal clones both showing lp+, a characteristic abnormality of neuroblastoma, were detected in cells from the residual primary tumour, providing direct evidence of persisting viable tumour. Such investigations should be a routine part of the assessment of response to treatment in patients with neuroblastoma, and could be extended to others in whom "second look" surgery is performed.

Adrenal Gland Neoplasms↗
PubMed1987

Virus infections in childhood malignant disease.

The viruses isolated during infective episodes over a 5-year period of 93 children with acute lymphoblastic leukemia (ALL) and 107 children with other malignancies have been studied. Viruses were identified by the fluorescent antibody technique (FAT), electron microscopy, and culture. Viruses were isolated on 204 occasions. Rhinovirus and RSV occurred significantly more often in the patients with ALL, and adenovirus more commonly in the solid tumor patients. Viruses were responsible for 4 of the 69 deaths. Multiple different virus isolation during the same infective episode was significantly more common than in a control group. Where paired sera were available, only 10 out of 27 children showed at least a fourfold rise to the isolated virus. A rise in complement-fixing antibody is confirmed as a very unreliable method of detecting virus infection in immunosuppressed children. Viruses are important pathogens in children with cancer and assume greater relevance now that over 60% of malignant disease in childhood can be cured.

Child↗
PubMed1986

Growth and development two years after artificial surfactant replacement at birth.

Two year follow-up of 80 surviving preterm babies from a controlled trial of surfactant replacement is reported. There were no statistically significant differences in rates of hospital admission, respiratory infections or antibiotic treatment. Wheezing, skin rashes and food intolerance were reported by parents with similar frequency in each group. Weight, length and occipito-frontal circumference were similar at all ages up to and including 2 years. Median developmental quotient (Griffiths scales) was 100 in the treated group and 95 in the control group (P = 0.053). Rates of cerebral palsy were similar in each group although milder forms predominated in the treated group. It is concluded that artificial surfactant (dipalmitoylphosphatidylcholine and high-density lipoprotein) replacement at birth is not associated with adverse long term effects on preterm babies.

Body Height↗
PubMed1986

Interferon responses of peripheral blood mononuclear cells from normal and leukaemic children.

Human peripheral blood mononuclear cell cultures (PBMC) stimulated with Sendai virus or K562 cells produce a mixture of interferons. Temperature and pH stability characteristics and reactions with monospecific antibodies indicate that PBMC cultures from adults produce interferons alpha and gamma in approximately equal proportions. PBMC cultures from children produce lower levels of interferons with a higher proportion of type alpha. The ability of PBMC cultures from children with acute lymphoblastic leukaemia (ALL) to produce interferon was determined. Little or no gamma interferon was induced by either Sendai virus or K562 cells. Cultures from some children with ALL produced alpha interferon but mean levels were significantly lower than from normal children. A group of older children with ALL who had completed their course of therapy and were off treatment produced levels of interferon indistinguishable from those of normal children. This in vitro deficit, possibly induced by chemotherapy, may reflect an in vivo deficit and may contribute to the impaired handling of viruses seen in children being treated for ALL.

Adolescent↗
PubMed1986

C-peptide levels in transient neonatal diabetes.

A baby boy with transient neonatal diabetes mellitus presenting with hyperglycaemia, glycosuria, and dehydration without ketonuria on the second day of life is reported. C-peptide levels were measured to aid in the assessment of insulin treatment. Very low levels were found for the first 5 months of life (less than 0.06 nmol/l). Thereafter insulin treatment was discontinued and the baby thrived showing normal growth and development at age 2 1/2 years.

Age Factors↗