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Biomedical subjects

B Anderson

Publications and source records attributed to B Anderson.

At least 379 records · Page 21Linked to original sources
PubMed1980

Activity and diabetic vitreous hemorrhages.

To ascertain the relationship between activity and vitreous hemorrhage, we questioned 72 consecutive diabetic patients presenting with 95 episodes of vitreous hemorrhage. The activity most commonly associated with symptoms of hemorrhage was sleep (36%) followed closely by sitting or lying (26%). Only one of six hemorrhages was associated with activity that could be considered more strenous than walking. Limiting the activity of diabetic patients does not seem an effective method of preventing vitreous hemorrhage.

Activities of Daily Living↗
PubMed1980

Interaction of plasma fibronectin with selected cryoglobulins.

Plasma fibronectin (PFN) is associated with cryoglobulins of the polyclonal type. Cryoglobulins from two patients with essential mixed cryoglobulinaemia were analysed immunoelectrophoretically to determine a possible association between PFN and immunoglobulin complexes in the formation of cryoprecipitates. In cryoglobulins from each patient, distinctive alterations in electrophoretic migration patterns of both PFN and immunoglobulin were associated with the formation of a cryoprecipitate. The observations indicate that PFN binds to some serum component in the process of cryoglobulin formation. That component may be immunoglobulin.

Adult↗
PubMed1979

Enlargement of a histologically documented choroidal nevus.

An elevated pigmented mass of the choroid remained stable for 6 1/2 years and then was documented photographically to have increased in size. The tumor stained on fluorescein angiography, produced a visual field defect, and differentially took up radioactive phosphorus. The eye was enucleated and on histologic examination contained a nevus of the choroid. This case shows that enlargement of a choroidal nevus may occur during adulthood, and suggests that despite newer and more sophisticated diagnostic techniques, large nevi and small melanomas of the choroid may be clinically indistinguishable.

Adenoma↗
PubMed1979

Unilateral cryptophthalmia.

Two patients had the variable clinical features of unilateral cryptophthalmia. A 5-month-old boy had isolated unilateral cryptophthalmia: a small boney orbit, deformed optic canal, and a small amorphous mass with no normal intraocular tissue representing the globe. No extraocular muscles or optic nerve were identified by B-scan ultrasound or by computed axial tomography x-ray techniques. The second patient, a 13-year-old girl, had unilateral cryptophthalmia, and numerous systemic abnormalities including a head circumference less than the third percentile, severe mental retardation, hypoplasia of the left side of the head, and a left facial cleft deformity. She also had contractures of hips, knees and ankles, and bilateral spasticity and jerky movements. The left boney orbit was contracted and deformed and contained a small amorphous tissue with no ocular detail, as revealed by B-scan and computed tomography scan.

Abnormalities, Multiple↗
PubMed1979

Melanin containing neurofibroma: case report with evidence of Schwann cell origin of melanin.

This case report describes a melanin-containing neurofibroma involving a spinal nerve root. Electron microscopy of the tumor shows that neoplastic Schwann cells are capable of melanogenesis. Although this capability is suggested in the literature, few reports provide ultrastructural confirmation. The likely identity between reported "cellular blue nevi of spinal nerve roots" and nerve sheath tumors is discussed. It is possible that pigmented nerve sheath tumors behave more aggressively than nonpigmented ones, although it is debatable.

Adult↗
PubMed1979

Inhibition by polyanions of adherence by Kanagawa-positive Vibrio parahaemolyticus: a physicochemical effect.

Rapid adherence of Kanagawa-positive Vibrio parahaemolyticus to human fetal intestinal cells has been demonstrated in monolayer cultures. In this study, polyanionic carbohydrates and glycoproteins of various biochemical compositions, structural configurations, and molecular weights were found to inhibit this adherence. Mono- and disaccharide components of inhibitory compounds did not themselves inhibit adherence. Levels of Ca++ in the test mixture were similar in both the presence and the absence of chondroitin sulfate, a potent inhibitor of adherence by V. parahaemolyticus. These results, which demonstrate a major effect of surface charge in this model of bacterial adherence, suggest that differences in surface charge may contribute to the varying degrees of adherence by different strains of V. parahaemolyticus. This striking effect of surface charge on adherence by V. parahaemolyticus underscores the importance of experimental conditions and of substances that affect the surface potential of the cell in the interpretation of findings in models of bacterial adherence.

Adhesiveness↗
PubMed1979

Bruising in cattle fasted prior to transport for slaughter.

Three trials, each with 100 bullocks previously grazing improved pasture, compared bruising in cattle fasted for 0, 24 and 48 hours prior to transport for slaughter. Overall the weight of bruised trim from unfasted bullocks (0.48 kg) was significantly less (P less than 0.01) than from bullocks fasted for 24 h (0.99 kg) or 48 h (1.03 kg). length of fast overall had no significant effect. This pattern was not consistent within trials.

Animals↗