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Biomedical subjects

A Khan

Publications and source records attributed to A Khan.

At least 577 records · Page 32Linked to original sources

Positive contrast ventriculography combined with computed tomography: technique and applications.

Injection of contrast material (melgumine iothalamate or metrizamide) into the cerebral ventricles, or into an intracranial cyst directly or through a shunt device, has proven to be of considerable value in the evaluation of hydrocephalus, localized or diffuse, and intracranial cysts. When combined with computed tomography (CT) of the brain (positive contrast CT ventriculography), these procedures become simpler to perform, the incidence of complications is less, and there is a significant increase in their diagnostic yield.

Adolescent↗

Immunocompetence and transfer factor therapy in uveitis.

A study of the clinical course of 20 patients with uveitis treated with transfer factor is reported. Twelve (60%) of the patients were initially immunoincompetent on screening. Eight of the 12 changed to an immunocompetent status after treatment and could either decrease or discontinue their anti-inflammatory drugs. Five had a statistically significant improvement in visual acuity. One of the 8 initially immunocompetent patients had a statistically significant visual improvement, and 2 decreased or discontinued all drugs, while 3 increased their drugs.

Adolescent↗

Transfer factor treatment in bullous pemphigoid. Impaired T cell function.

A patient with bullous pemphigoid, not responding to prednisone, had impaired cellular immunity. Transfer factor (TF) was given in doses of 10 U/m2 intramuscularly to improve T cell immunity, at a frequency of 3 times to once a week. Clinical improvement fluctuated with changes in the frequency of TF injections. The skin has been clear of the lesions for the past 9 months. Her T cell functions became normal and serum IgE decreased from 900 U/ml to 270 U/ml. She has received a total of 1,732 U of TF. This report is intended to encourage investigation into T cell functions in patients with bullous pemphigoid and controlled trials of TF in this disease.

Autoimmune Diseases↗

Focal histiocytosis X of the parietal lobe. Case report.

The authors describe a case of histiocytosis X of the parietal lobe presenting as a space-occupying lesion on a computerized tomography scan of the brain. The clinical, radiographic, and therapeutic aspects of the case are discussed. A brief review of the literature is presented.

Brain Diseases↗

Renal pedicle injury in the multiple injured patient.

Renal pedicle injuries were associated with multiple system trauma and a mortality rate of 42 per cent in 31 patients seen from 1959 to 1978. These injuries were to the renal artery in 14 patients, branches of the renal artery in 5, renal vein in 8, and renal artery and vein in 4. Priority of treatment for life-threatening associated injuries resulted in delayed diagnosis of the renal pedicle injury, which was not optimal for preservation of functioning renal tissues. Since 1968 an immediate excretory urogram has been performed for hematuria or a perirenal hematoma found during laparotomy for associated injuries. This study has resulted in the early diagnosis of renal pedicle injuries and immediate vascular repair has been attempted in 6 patients. Three of these patients survived with no hypertension on followup. A repaired renal vein in 1 patinet resulted in normal renal function and renal arteries were repaired in the other 2 patients with reduced renal function.

Adolescent↗

Immunosuppressive effects of sulfato-trans-(-)-1,2-diaminocyclohexaneplatinum(II).

Sulfato-trans-(-)-1,2-diaminocyclohexane platinum(II) is a new antitumor agent. Its effect on immune responses was investigated. This agent inhibited lymphocyte transformation in response to phytohemagglutinin, pokeweed mitogen, and concanavalin A. It inhibited antibody plaque-forming spleen cells in AKR/J mice at doses ranging from 2.5 to 7.5 mg/kg i.p. It also prolonged the survival of skin grafts against major histocompatibility barriers in C57BL/6J mice transplanted with tail skin from CBA/J mice. The effective dose ranged from 2.5 to 5 mg/kg. This compound inhibited graft-versus-host reaction in three-week-old AKR/J X DBA/2JF1 mice receiving spleen cells from AKR/J mice i.p. Significant inhibition of graft-versus-host reaction was seen with doses ranging from 1 to 7.5 mg/kg i.p. These results suggest that this drug is immunosuppressive.

Animals↗