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Biomedical subjects

A Roth

Publications and source records attributed to A Roth.

At least 271 records · Page 15Linked to original sources

Rehabilitation in progressive supranuclear palsy: case report.

Progressive supranuclear palsy (PSP) is a distinct clinicopathologic entity characterized by supranuclear ophthalmoplegia, pseudobulbar palsy, axial dystonia in extension, and subcortical dementia. Although relatively rare, PSP is disabling, thus rehabilitation techniques and management are indicated in nearly every case. This report describes the neurologic presentation, rehabilitation management, and outcome of treatment of a patient with PSP during a 12-month period. The patient required thorough neuromuscular, neuropsychological, speech, swallowing, vision, and social service evaluations prior to the implementation of a rehabilitation program. Therapeutic rehabilitation techniques focused on limb coordination activities, tilt board balancing, ambulation activities, and activities to improve route finding and visual scanning ability. Prism lenses were introduced to compensate for deficits in vertical eye movements. Treatment improved the patient's functional status. Later, as the patient's neurologic status deteriorated, it became necessary to educate the family and caretakers in the ongoing rehabilitation management of the patient.

Bulbar Palsy, Progressive↗

[AIDS in children. Histopathologic study of 12 cases].

The anatomo-clinical investigation of a series of 12 cases of AIDS in infants, over two years in Hôpital des Enfants Malades (Paris) allows the following observations to be made: the frequency of materno-foetal contaminations (8/12); the relative shortness of the incubation period (3-6 months); the variable degree of the atrophy of the lymphoid tissues; the absence of vascular proliferation; the interest of demonstrating viral proteins associated with LAV virus (p 18) in imprecisely identifiable cells of lymphoid tissue; the severity of the thymic alterations, which are characterized less by a lymphocyte depletion than by a loss of the maturation of the epithelial tissue, which still preserves its hormone secretory properties.

Acquired Immunodeficiency Syndrome↗

Hemodynamic and hormonal effects of high-dose transdermal nitroglycerin in patients with chronic congestive heart failure.

The hemodynamic effect of a large dose of nitroglycerin (NTG) (90 mg) given transdermally using a reservoir system was studied in 10 patients with severe, long-standing congestive heart failure. Serial hemodynamic measurements over 24 hours revealed a mild decrease in mean pulmonary artery wedge pressure. However, the change from baseline was significant only at 2 hours (19 +/- 9 vs 27 +/- 6 mm Hg). Mean right atrial pressure fell 1 hour after initiation of therapy, from 12 +/- 7 to 8 +/- 5 mm Hg. However, the change from control was not statistically significant. No significant changes were noted in heart rate, mean blood pressure, cardiac index, and systemic and pulmonary vascular resistance. Individual analysis of the effect of transdermal NTG on pulmonary artery wedge pressure demonstrated at 20% or greater reduction in 8 of 10 patients. However, persistent effect (longer than 8 hours) was seen in only 4 patients. Removal of NTG patches at 24 hours did not result in hemodynamic rebound. Serum catecholamine levels and renin concentration did not change 2 hours and 24 hours after initiation of NTG therapy or after removal of NTG patches. Thus, a large dose (90 mg) of transdermal NTG using a reservoir system results in mild and mostly statistically insignificant hemodynamic effect in patients with chronic severe congestive heart failure. Although a reduction in pulmonary artery wedge pressure is seen in most patients, rapid attenuation of this response is found in many patients and the effect only rarely lasts for 24 hours.(ABSTRACT TRUNCATED AT 250 WORDS)

Administration, Topical↗

Cyclophosphamide, adriamycin and platinum (CAP) combination chemotherapy, a new effective approach in the treatment of disseminated breast cancer. Preliminary report.

The prospective controlled Phase III clinical trial tested the therapeutic value of the cis-platinum-adriamycin-cyclophosphamide combination (CAP), compared with the combination including cyclophosphamide, methotrexate, 5-fluorouracil, vincristine and prednisolone (CMFVP), in untreated metastatic breast cancer. One hundred and twenty-three patients (greater than 2 cycles) were evaluated: 61 on the CAP, and 62 on the CMFVP schedule. An objective response (CR + PR) to CAP combination chemotherapy was achieved in 72% of patients (43/61), with a high rate (36%) of complete remissions. In terms of metastatic site, the response rate appeared to be particularly high in soft tissue and visceral organ (lung, liver) metastases. In the CMFVP group, an objective response was noted in 26 of 62 patients (42%), with 16% complete remissions. The difference in overall therapeutic response - and in the complete remission rate as well - was statistically significant to the advantage of the CAP regimen (P less than 0.01). The duration of remissions was 6-28 + months (means = 14) for the CAP, and 4-15 + months (mean = 9) for the CMFVP schedule. Toxic side effects were more pronounced in the CAP group, particularly myelosuppression, with anemia prevailing. Side effects of CMFVP treatment were moderate. In 39 CMFVP previously treated cases, CAP was administered as second-line treatment, and an objective response was observed in 51% of cases (20/39). Results of this controlled trial showed the advantage of the CAP combination chemotherapy in the treatment of metastatic breast cancer.

Adult↗

Human lymphocytes induce a differential release of prostaglandin E2 and interleukin 1-like mononuclear cell factor from normal blood monocytes.

Lymphocytes influence the production of both prostaglandin E2 (PGE2) and interleukin 1 (IL 1) by monocytes. We have examined whether these two products are released concomitantly or not under identical culture conditions using monocyte- and lymphocyte-enriched populations obtained on Percoll gradient. IL 1 was measured as mononuclear cell factor (IL 1/MCF). When incubated with concanavalin A, the monocyte-enriched fraction (MF; 80-91% monocytes), but not the lymphocyte-enriched fraction (LF; 95% lymphocytes) produced increasing amounts of PGE2 and MCF. However, when LF cells were added to MF cells in culture, a 40% to 60% decrease of PGE2 secretion was observed whereas the MCF production remained unchanged or increased up to 26-fold. Such a dissociation between IL 1 and PGE2 production by monocytes indicates independent regulation mechanisms in controlling the immune response under the influence of lymphocytes.

Cell Separation↗

Anatomo-pathological findings in a case of combined deficiency of sulphite oxidase and xanthine oxidase with a defect of molybdenum cofactor.

A case of combined deficiency of sulphite-oxidase and xanthine-oxidase with a defect of the molybdenum cofactor, which is vital to the activity of sulphite-, xanthine- and aldehyde-oxidase, is reported here. Seven cases of combined deficiencies have been described with regard to both clinical and laboratory findings. The clinical, laboratory and anatomo-pathological features and, in particular, the central nervous system lesions of the present case correspond exactly to those in the case described Rosenblum in which an isolated deficiency in sulphite-oxidase was present. As the cerebral alterations in the present case are comparable to those described in Rosenblum's case, they probably result from the defect in sulphite-oxidase activity.

Amino Acid Metabolism, Inborn Errors↗

Recurrence of synovial sarcoma of the abdomen in a 10-year old child.

The case of a 10 year old child with a synovial sarcoma of the left iliac fossa, which recurred 12 months after simple large surgical excision, is reported here. No related lesions and, in particular, no lesion of the articular capsule of the left hip could be found, either on X-ray or at the time of the two excisions. Microscopically, the tumor showed, in all the areas examined, the existence of two characteristic morphological aspects, associating epithelial like type cells and elongated fusiform cells. These features correspond exactly to the classic "biphasic" type of synovial sarcoma. This location of a synovial sarcoma is an uncommon one, both in children and in adults.

Abdominal Neoplasms↗

[Acute and chronic orbital myositis].

Ocular muscle diseases fall into two distinct groups: acute or subacute exophthalmic myositis and chronic oligosymptomatic myositis. The diagnosis can only be established with certainty by means of B-scan sonography and CT scanning; these examinations demonstrate the irregular thickening of one or several eye muscles. The disease is apparently primitive; in some cases concomitant autoimmune factors may be found. The course is spontaneous, with continual recurrence, and may have sequelae in the form of a definitive exophthalmos or an acquired retraction syndrome. It responds remarkably well to corticotherapy and, if necessary, immunosuppressors; in general, these lead to rapid and - if treatment is started in time - total regression of the disease.

Acute Disease↗

[Acute vascular occlusion of the eye fundus: ocular and general evaluation. General treatment plan].

Occlusion of retinal arterioles and veins and acute papillitis are often local manifestations of systemic disease. Treatment should start as soon as the diagnosis is made. At the same time the ocular lesions should be assessed and the local and systemic risk factors sought. Identified risk factors should be treated immediately if possible. The primary aim is to reestablish perfusion in the occluded vessels in order to limit the extent of lesions and to restore function. In practice, intervention is often too late. Subsequent treatment aims at consolidating the result, and may take a year; relapse should be avoided by treatment of the risk factors.

Age Factors↗

[Retrobulbar corticotherapy].

Corticotherapy has been proposed several times for the treatment of venous thrombosis of the retina (e.g., Hayreh 1975). Since 1975 the present authors have used it regularly, combined with heparinotherapy, for all types of retinal vascular occlusion, in the form of retrobulbar injections of corticoids. The aim is to reduce edema of the vascular wall at the occlusion and re-establish or improve the flow, and thereby protect the sensory cells during the critical repair period. In edematous or mixed types of venous thrombosis, the effectiveness of the treatment is demonstrated by a rapid improvement in acuity. As recommended by Hayreh, corticotherapy is certainly indicated for edematous and mixed thromboses with loss of central field acuity. In other types of vascular occlusions (ischemic venous thrombosis, arterial occlusion, and vascular papillitis) the benefit can only be guessed at. Corticotherapy is not a replacement for anticoagulation, laser coagulation, or general treatment.

Aged↗

Diagnosis and immunotherapy of mould allergy. I. Screening for mould allergy.

In order to screen for mould allergy, extracts of five common atmospheric moulds (Cladosporium, Alternaria, Penicillium, Aspergillus and Mucor) from various manufacturers were investigated in 130 patients (5-60 years old) with clinical symptoms indicating possible mould allergy. The patients were screened by skin prick test (SPT) and radioallergosorbent test (RAST). SPT seemed to be more sensitive than RAST as a diagnostic screening procedure (80% positive reactions to one or more species compared to 50%). With a partially purified, standardized preparation of Cladosporium herbarum more positive reactions were obtained than with crude extracts without evidence of any unspecific reactions. The difference between commercial and standardized extracts is most probably a result of a variation of both the biological potency of allergenic determinants and the allergenic composition. A considerable number of negative RAST reactions with standard discs were found in patients with positive skin reactions to partially purified Cladosporium, but RAST seemed to be more sensitive than SPT with the other commercial mould extracts. Based on the screening, a very convincing tendency to IgE-reactivity to other moulds was found in patients reacting to Cladosporium, the most common cause of mould allergy. The results confirm the inadequacy of most mould extracts used in diagnostic procedures and strengthen the value of using standardized extracts.

Adolescent↗

Treatment of disseminated testicular tumors with combination of cis-platinum, vinblastine, bleomycin and actinomycin D.

Cis-platinum, vinblastine, bleomycin and actinomycin D were used in the treatment of 24 patients with advanced testicular tumors. There were 8 seminomas and 16 nonseminomas. 19 patients were in stage III B, 2 in stage III A and 3 in stage II B. 7 patients were previously treated. Complete remission was obtained in 12 patients (50%), partial remission in 8 (33%) and treatment failed in 4 (16.7%). According to localization of metastases best results were obtained in patients with lung metastases (11 complete remissions out of 16 patients). Nausea, vomiting and alopecia were the most frequent toxic side effects of treatment. The authors hope that the 9 patients who are still in complete remission have good chances for complete recovery.

Adolescent↗

Isometric exercise in patients with chronic advanced heart failure: hemodynamic and neurohumoral evaluation.

We evaluated the hemodynamic effects of isometric exercise in 53 patients with congestive heart failure (CHF) and compared them with those found in 10 normal subjects. In both groups, isometric exercise increased heart rate and blood pressure. Systemic resistance increased in patients with CHF (1862 +/- 520 vs 2126 +/- 642 dyne-sec-cm-5; p less than .001) but not in normal subjects (1359 +/- 268 vs 1380 +/- 252 dyne-sec-cm-5). Cardiac index and stroke volume index increased mildly but not significantly in the normal subjects (2.8 +/- 0.5 vs 3.1 +/- 0.7 liters/min/m2 and 46 +/- 8 vs 47 +/- 7 ml/m2) and showed a significant fall in the patients with CHF (2.1 +/- 0.6 to 1.9 +/- 0.6 liters/min/m2, p less than .01 and 23 +/- 7 vs 20 +/- 7 ml/m2, p less than .01). Mean pulmonary arterial wedge pressure increased in patients with CHF from 26 +/- 7 to 30 +/- 8 mm Hg (p less than .001). Although no significant change was found in mean value for stroke work index (21 +/- 9 vs 20 +/- 9 g-m/m2), the individual changes were variable, with marked decrease (greater than 15%) in 17 of the patients. This hemodynamic deterioration could not be predicted from resting hemodynamics, left ventricular ejection fraction, or functional classification. Isometric exercise resulted in no significant change in circulatory catecholamine levels or plasma renin concentration in our 10 normal subjects.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗

Hypercalcemic infantile renal tumors: morphological, clinical, and biological heterogeneity.

Hypercalcemic infantile renal tumors without bone metastases should be considered to be a heterogeneous tumoral entity. Histological and ultrastructural features, different from those of nephroblastoma, should not be exclusively linked with malignant rhabdoid tumors of the kidney. This is reported by the present case, which appears to be a cellular variant of mesoblastic nephroma and was successfully serially transplanted to nude mice. The causes of hypercalcemia in infantile renal tumors are probably related either to NH2-terminal parathormone or to prostaglandin E2 production by the tumoral cells.

Animals↗

Human circulating monocytes internalize 125I-insulin in a similar fashion to rat hepatocytes: relevance to receptor regulation in target and nontarget tissues.

Circulating monocytes bind 125I-insulin in a specific fashion and have been used to analyze the ambient receptor status in humans. When freshly isolated circulating monocytes are incubated with 125I-insulin and examined by electron microscopic autoradiography, approximately 18% of the labeled material is internalized after 15 minutes at 37 degrees C. By 2 hours at 37 degrees C, approximately one half of the 125I-insulin is internalized. Internalization occurs also at 15 degrees C but at a slower rate. Furthermore, the monocytes bind and internalize 125I-insulin in a manner that mirrors that of major target tissues, such as rat hepatocytes. These data suggest that the insulin receptor of the circulating monocyte might be regulated by adsorptive endocytosis in a manner analogous to that of target tissue, such as the liver.

Animals↗