Search PubMed⌕ Search

Biomedical subjects

E Green

Publications and source records attributed to E Green.

At least 109 records · Page 6Linked to original sources
PubMed1978

[Studies using loperamide in patients with diarrhea following telecobalt irradiation of malignant abdominal tumors (author's transl)].

45 patients with diarrheas appearing after exposure of the gastro-intestinal region to ionizing radiation were given loperamide in the course of a study. A few days after administration of the loperamide, normalization of the stools took place, except in three cases. Simultaneous tenesmic gripes, some of the patients had also suffered from, disappeared completely, with the exception of two cases where, however, normalization of the stools was obtained by means of the loperamide therapy. Subjective side-effects did not occur. Also no alterations of the blood count, hematological features, liver function tests or urine have been observed.

Abdominal Neoplasms↗
PubMed1977

Inhibition of thyrotrophin-releasing hormone responsiveness by physiological concentrations of thyroid hormones in the cultured rat pituitary gland.

Diced quarter anterior pituitaries from mature females Wistar rats were cultured in synthetic medium with or without added serum. Using each culture as its own control, the thyrotrophin-releasing hormone (TRH) dose-thyrotrophin (TSH) response characteristics of both media were similar; significant TSH secretion being stimulated at TRH doses around 1-5 X 10(-9) mol/l. During days 1-3 of culture, basal TSH secretion fell significantly but TRH responsiveness was unchanged. Neither tri-iodothyronine (T3) nor thyroxine (T4) influenced basal TSH secretion. In both culture media inhibition of TRH responsiveness was demonstrated with concentrations of T3 and T4 within the ranges 1-5 X 10(-12) to 1-5 X 10(-9) mol/l for T3 and 6-5 X 10(-10) to 6-5 X 10(-7) mol/l for T4. Equivalent inhibition was accompanied by similar T3 concentrations whether T3 or T4 supplements were used, suggesting that T4 itself has no feedback action. The similar concentrations of T3 required to inhibit TRH responsiveness in media either with or without serum suggest that the pituitary is responsive not only to free but also to total thyroid hormone concentrations, since serum-free medium contains no thyroid hormone-binding protein.

Animals↗
PubMed1977

A human alloantiserum precipitates Ia-like molecules from chronic lymphocytic leukemia cells.

Alloantigens specific for human B lymphocytes can be identified with selected antisera. These antigens have similarities to murine Ia antigens in that they are found on human B lymphocytes and are controlled by genes linked to genes controlling HLA. Chronic lymphocytic leukemia cells bearing B cell antigens were labeled with 3H leucine and the membrane components reacting with the B cell antisera isolated by immunoprecipitation. These membrane components had m.w. of 33,000 and 24,000 daltons similar to the murine Ia antigens. The results complete the homology of murine Ia and human B cell alloantigens.

Animals↗
PubMed1977

Plasma levels of estrogen, luteinizing hormone, and follicle stimulating hormone following castration and estradiol implant.

Plasma levels of luteinizing hormone, follicle stimulating hormone, and estrogen were studied serially in 20 patients before and after hysterectomy and bilateral salpingo-oophorectomy. Ten patients received an implant of estradiol-17 beta (100 mg) at the time of operation. Ten patients who did not receive an implant acted as controls. Patients recorded the severity of vasomotor symptoms before and after hysterectomy. In those patients who did not receive an implant, plasma estrogen levels fell from a mean preoperative level of 18.1 +/- 10.4 ng/100 ml to 8.7 +/- 1.4 ng/100 ml by 24 hours after oophorectomy and they remained in this range for the 6 months of the study. No significant change in the plasma estrogen level was noted after oophorectomy in those patients who received an implant. The implant prevented the rise in gonadotropin levels and the appearance of vasomotor symptoms seen in those patients who underwent oophorectomy without an implant. Insertion of an implant into oophorectomized patients caused the plasma estrogen level to return to premenopausal levels within 2 weeks and the gonadotropin levels to premenopausal values within 6 weeks. Hot flashes were alleviated within 2 to 6 days. The usefulness of this type of therapy in preventing the appearance of vasomotor symptoms at the time of oophorectomy in premenopausal patients is confirmed.

Adult↗
PubMed1976

Assessment of thyroid hormone assays.

Four techniques for estimating serum T4 and three for estimating serum T3 have been investigated and found to be satisfactory in routine use. Normal ranges for each techniques have been established. Estimation of serum T3 by the commerical kits tested appears to have a high discriminant value in the diagnosis of hyperthyroidism, although the diagnostic definition used inevitably enhances the apparent sensitivity of these techniques. Estimation of serum T4 will identify the majority of patients with symptomatic hypothyroidism. The low sensitivity of T3 in the diagnosis of thyroid failure is confirmed.

Binding, Competitive↗
PubMed1975

Thyroid function after subtotal thyroidectomy for hyperthyroidism.

Among 76 patients who had had a subtotal thyroidectomy for hyperthyroidism from one to seven years previously recurrent hyperthyroidism was found in three and hypothyroidism in 13. The remaining 60 subjects were clinically euthyroid but a raised level of serum thyroid-stimulating hormone (TSH; greater than 5-0 mu U/ml) was found in 39. Analysis of the data showed that their serum thyroxine was significantly lower than in the subjects with a normal TSH. The serum triiodothyronine (T-3) was similar in both groups. It is concluded that subjects with a raised TSH remain clinically euthyroid by maintaining a normal serum T-3 concentration. There was no evidence of any long-term progressive deterioration of thyroid function after subtotal thyroidectomy.

Humans↗
PubMed1975

Paired moving charges in mitochondrial energy coupling. II. Universality of the principles for energy coupling in biological systems.

The thesis is developed that an acceptable model of biological energy coupling must have universal application. The paired moving charge model of mitochondrial energy coupling is examined from the standpoint of this thesis. Fundamental to this model is the notion that energy coupling involves interaction between paired uncompensated charged species in two vectorially aligned and spatially separated reaction centers. The two charge-separating devices are assumed to be the electron transfer chain (in chloroplast and mitochondria) and intrinsic ionophores (in all transducing organelles and kinases). The universality of the ionophore principle becomes then the crucial test of the validity of the paired moving charge model. The multiple facets of ionophore-mediated couples processes are explored, e.g., coupled hydrolysis of ATP, hormonal control of ion movements, and active transport.

Adenosine Triphosphatases↗