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AbstractAbstract
[en] Gamma transitions following the decay of 75Se have been studied using a Ge(Li) detector and a NaI(Tl)-NaI(Tl) sum-coincidence spectrometer, used in conjunction with a slow-fast coincidence circuit. Two new gamma rays of energy 373.5 and 556.4 keV have been observed and confirmed in the level scheme of 75As. Ambiguous gamma transitions of 249.2, 468.6, 542.2, and 821.6 keV energies have also been confirmed. No evidence was found for the existence of 269.0, 293.0, and 308.0 keV transitions. The accurate intensities for various transitions have been determined. (author)
Primary Subject
Source
10 refs.
Record Type
Journal Article
Journal
Canadian Journal of Physics; v. 55(22); p. 2036-2039
Country of publication
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AbstractAbstract
[en] A cheap, easy method of introducing high specific activity Se-75 into radiopharmaceuticals is described. Se-75 selenious acid is reduced with NaBH4 producing the nucleophile NaHSe. Using this method, a fatty acid, cholesterol, estrogen and phenethylamine are all labelled with Se-75. (U.K.)
Secondary Subject
Record Type
Journal Article
Journal
Nuclear Medicine Communications; ISSN 0143-3636;
; v. 3(4); p. 247-250

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Schwartz, K.D.; Michael, R.; Pietsch, P.; Tredt, H.J.; Brietzke, W.; Dabels, J.
Radioactive isotopes in clinic and research1982
Radioactive isotopes in clinic and research1982
AbstractAbstract
[en] Over a period of 3 years about 1.120 parathyroid hormone assays were carried out in 527 patients. Of these, 198 (38%) showed elevated serum levels. Feedback from referring institutions, where received, indicated that primary hyperparathyroidism was confirmed surgically in 42 cases. Of these, 6 had normal parathyroid hormone levels, while 36 showed minor to substantial elevations. In 24 patients parathyroid hormone was also determined in blood samples selectively obtained from the cervical veins. The results of 16 determinations agreed well with the clinical course and the surgical findings. In the remaining 8 cases surgical reports were inadequate or unavailable. The authors conclude from this evidence that parathyroid scanning with Se75 methionine appears to have no longer a place in localizing adenomas. The comparison of pre- and postoperative findings showed a mostly appreciable drop of parathyroid hormone serum levels after surgery which was consistent with the clinical course. Calcium concentrations were as high as or higher than preopoeratively in 5 cases. This appears to suggest that calcium levels have a lower diagnostic potential at least in normocalcemic cases. (Author)
Original Title
Prae- und postoperative Ergebnisse der radioimmunologischen Parathormonbestimmung bei Hyperparathyreoidismus
Primary Subject
Source
Hoefer, R.; Bergmann, H. (Vienna Univ. (Austria). 2. Medizinische Klinik); v. 15, pt. 2, 364 p; ISBN 3-900287-14-7;
; 1982; p. 605-614; Egermann; Vienna (Austria); Radioactive isotopes in clinic and research, Gastein international symposium 1982; Bad Gastein (Austria); 1982

Record Type
Miscellaneous
Literature Type
Conference
Report Number
Country of publication
BACTERIAL DISEASES, BETA DECAY RADIOISOTOPES, COUNTING TECHNIQUES, DAYS LIVING RADIOISOTOPES, DIAGNOSTIC TECHNIQUES, DISEASES, ELECTRON CAPTURE RADIOISOTOPES, EVEN-ODD NUCLEI, HORMONES, INFECTIOUS DISEASES, INTERMEDIATE MASS NUCLEI, ISOTOPES, NUCLEI, PEPTIDE HORMONES, RADIOISOTOPE SCANNING, RADIOISOTOPES, SELENIUM ISOTOPES
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Delorme, G.; Debaud, B.; Gest, G.
17. French language symposiun on nuclear medicine. Paris, June 2-4, 19751975
17. French language symposiun on nuclear medicine. Paris, June 2-4, 19751975
AbstractAbstract
[en] A retrospective study of thymus scintigraphs using selenomethionine 75Se was made on 65 patients, 59 myasthenic and 6 presenting various mediastinal formations. Special attention was paid to highly individualized uptake centres. Certain inconsistencies often observed in practice were noted however. Selenium 75-labelled thymus scintigraphy on myasthenics was found to be difficult because of the low activities detected, the artefacts possible, the variability of the thymus and the poor condition of the patients. Carried out on 59 myasthenics it gave 23% focal images in 52 patients possessing their thymus. This fraction compares with that of the radiological anomalies observed in these patients
[fr]
On a fait une etude retrospective de scintigraphies thymiques a la selenomethionine Se75 portant sur 65 malades dont 59 etaient myastheniques et 6 porteurs de formations mediastinales diverses. On s'est particulierement interesse aux foyers fixants bien individualises. On a cependant signale certains aspects inconsistants observes frequemment dans la pratique. On a constate que la scintigraphie thymique marquee au selenium 75 chez les myastheniques reste un examen difficile en raison des faibles activites detectees, des artefacts possibles, de la variabilite du thymus et du mauvais etat des malades. Pratiquee sur les 59 myastheniques elle a donne 23% d'images en foyer chez 52 malades explores porteurs de leur thymus. Ce taux est comparable a celui des anomalies radiologiques observees chez ces maladesOriginal Title
Scintigraphie du thymus par la selenomethionine marquee au Se75
Primary Subject
Source
Kellershohn, C.; Raynaud, C. (eds.); CEA Centre d'Etudes Nucleaires de Saclay, 91 - Gif-sur-Yvette (France). Dept. de Biologie; p. 247-250; ISBN 2727200013;
; 1975; 17. French language symposium on nuclear medicine; Paris, France; 02 Jun 1975

Record Type
Report
Literature Type
Conference
Report Number
Country of publication
AMINO ACIDS, BETA DECAY RADIOISOTOPES, BODY, CARBOXYLIC ACIDS, COUNTING TECHNIQUES, DAYS LIVING RADIOISOTOPES, DIAGNOSTIC TECHNIQUES, ELECTRON CAPTURE RADIOISOTOPES, EVEN-ODD NUCLEI, INTERMEDIATE MASS NUCLEI, ISOTOPES, LIPOTROPIC FACTORS, LYMPHATIC SYSTEM, MEDICINE, NUCLEAR MEDICINE, NUCLEI, ORGANIC ACIDS, ORGANIC COMPOUNDS, ORGANIC SULFUR COMPOUNDS, ORGANS, RADIOISOTOPE SCANNING, RADIOISOTOPES, SELENIUM ISOTOPES
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Glover, J.S.; Chambers, V.E.M.
17. French language symposium on nuclear medicine. Paris, June 2-4, 19751975
17. French language symposium on nuclear medicine. Paris, June 2-4, 19751975
AbstractAbstract
[en] Selenium 75 has nuclear properties very suitable for the labelling of steroids used as tracers in competition analysis. A method of preparing a selenium-labelled cortisol derivative, 75Se methylselenoprednisolone, is described. A system based on bonding competition between plasma cortisol and 75Se methylselenoprednisolone on transcortine was studied, the separation taking place on a Sephadex adsorbant. An early analysis with highly stable reagents was achieved
[fr]
Le selenium 75 a des caracteristiques nucleaires tres favorables pour le marquage des steroides utilises comme tracers dans les dosages par competition. On a decrit une methode de preparation d'un derive selenie du cortisol, le 75Se methylselenoprednisolone. On a etudie un systeme base sur la competition de liaison entre le cortisol plasmatique et le 75Se methylselenoprednisolone sur la transcortine, la separation s'effectuant sur un adsorbant Sephadex. On est arrive a un dosage facile avec des reactifs tres stablesOriginal Title
Le cortisol marque au 75Se dans les dosages par competition
Primary Subject
Source
Kellershohn, C.; Raynaud, C. (eds.); CEA Centre d'Etudes Nucleaires de Saclay, 91 - Gif-sur-Yvette (France). Dept. de Biologie; p. 152-155; ISBN 2727200013;
; 1975; 17. French language symposium on nuclear medicine; Paris, France; 02 Jun 1975

Record Type
Report
Literature Type
Conference
Report Number
Country of publication
ADRENAL HORMONES, BETA DECAY RADIOISOTOPES, CHEMISTRY, CORTICOSTEROIDS, DAYS LIVING RADIOISOTOPES, ELECTRON CAPTURE RADIOISOTOPES, EVEN-ODD NUCLEI, GLUCOCORTICOIDS, HORMONES, HYDROXY COMPOUNDS, INTERMEDIATE MASS NUCLEI, ISOTOPE APPLICATIONS, ISOTOPES, KETONES, NUCLEI, ORGANIC COMPOUNDS, PREGNANES, RADIOISOTOPES, SELENIUM ISOTOPES, STEROID HORMONES, STEROIDS, TRACER TECHNIQUES
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Sauerwein, C.; Isenhardt, G.; Weinlich, K.
Advanced nondestructive testing - a vehicle which ensures economic efficiency and meets ecological requirements. Pt. 1. Lectures and posters1995
Advanced nondestructive testing - a vehicle which ensures economic efficiency and meets ecological requirements. Pt. 1. Lectures and posters1995
AbstractAbstract
[en] The physical properties of the isotope Se-75 are introduced and there is a report on first experience with it and new working equipment (GAMMAMAT) especially matched to Se-75. (orig.)
[de]
Es werden die physikalischen Eigenschaften des Isotops Se-75 vorgestellt und ueber die ersten Erfahrungen mit ihm und einem eigens auf Se-75 abgestimmten, neuen Arbeitsgeraet berichtet (GAMMAMAT). (orig.)Original Title
Gammagrafie mit Selen-75
Primary Subject
Source
Deutsche Gesellschaft fuer Zerstoerungsfreie Pruefung e.V., Berlin (Germany); Deutsche Gesellschaft fuer Zerstoerungsfreie Pruefung. Berichtsband; v. 43,1; 397 p; 1995; p. 231-237; Annual meeting of Deutsche Gesellschaft fuer Zerstoerungsfreie Pruefung e.V. (DGZfP): Advanced nondestructive testing - a vehicle which ensures economic efficiency and meets ecological requirements; Jahrestagung der Deutschen Gesellschaft fuer Zerstoerungsfreie Pruefung e.V. (DGZfP): Fortschrittliche ZfP - ein Instrument fuer Oekonomie und Oekologie; Timmendorfer Strand (Germany); 9-11 May 1994; Available from FIZ Karlsruhe
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Miscellaneous
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Conference
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Related RecordRelated Record
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AbstractAbstract
[en] Selenium (Se) is an essential micronutrient for human health, but its deficiency may affect at least one billion people worldwide. Plants and plant-derived products transfer the soil-uptaken Se to humans through the food chain, which is hardly enough when soils have been always poor or already exhausted in bioavailable Se species. Other than agronomic approaches for enhancing Se levels in cereals, such as soil and foliar supplements, seed enrichment may be viewed as an alternative Se-biofortification technique. This study addresses the protocol for preparing Se-enriched wheat seeds, with the specific purpose of optimizing the administration of Se to the seeds prior to sowing. The first step was to soak an amount of bread-wheat seeds in an active Se solution, made with irradiated [Na2O4Se], and then monitoring 75Se in periodically-retrieved samples from that original amount. To avoid losing Se to soil (after sowing), and, especially, to ensure that Se gets really absorbed into the seeds - and not just adsorbed onto them - the washing time of the seeds should be optimized as well. This was carried out by washing Se-treated seeds several times, until no significant amount of the radiotracer could be detected in the washing water. In what concerns the full optimization procedure, the overall results of the present study point to an optimum time of 48 h for soaking and 24 h for washing. (author)
Primary Subject
Source
21 refs.
Record Type
Journal Article
Journal
Journal of Radioanalytical and Nuclear Chemistry; ISSN 0236-5731;
; CODEN JRNCDM; v. 291(1); p. 193-195

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AbstractAbstract
No abstract available
Original Title
Les alterations scintigraphique de la tete du pancreas; 75Se-selenomethionine
Primary Subject
Source
9. Congress of latin country radiologists and 26. National congress of the Italian Society of Radiology and Nuclear Medicine; Venice, Italy; 15 Oct 1974; Published in summary form only.
Record Type
Journal Article
Literature Type
Conference
Journal
J. Radiol., Electrol., Med. Nucl; v. 56(suppl.2); p. 523-524
Country of publication
AMINO ACIDS, BETA DECAY RADIOISOTOPES, BODY, CARBOXYLIC ACIDS, COUNTING TECHNIQUES, DAYS LIVING RADIOISOTOPES, DIAGNOSTIC TECHNIQUES, DIGESTIVE SYSTEM, DISEASES, ELECTRON CAPTURE RADIOISOTOPES, ENDOCRINE GLANDS, EVEN-ODD NUCLEI, GLANDS, INTERMEDIATE MASS NUCLEI, ISOTOPES, LIPOTROPIC FACTORS, MEDICINE, NUCLEAR MEDICINE, NUCLEI, ORGANIC ACIDS, ORGANIC COMPOUNDS, ORGANIC SULFUR COMPOUNDS, ORGANS, PATHOLOGICAL CHANGES, RADIOISOTOPE SCANNING, RADIOISOTOPES, SELENIUM ISOTOPES
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AbstractAbstract
No abstract available
Primary Subject
Source
Letter-to-the-editor.
Record Type
Journal Article
Journal
Acta Veterinaria Scandinavica; v. 15 p. 144-146
Country of publication
AMINO ACIDS, ANIMALS, BETA DECAY RADIOISOTOPES, CARBOXYLIC ACIDS, DAYS LIVING RADIOISOTOPES, ELECTRON CAPTURE RADIOISOTOPES, EVEN-ODD NUCLEI, HELMINTHS, INTERMEDIATE MASS NUCLEI, INVERTEBRATES, ISOTOPES, LIPOTROPIC FACTORS, MOLLUSCS, NUCLEI, ORGANIC ACIDS, ORGANIC COMPOUNDS, ORGANIC SULFUR COMPOUNDS, PARASITES, PLATYHELMINTHS, RADIOISOTOPES, SELENIUM ISOTOPES, TREMATODES
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AbstractAbstract
[en] Published in summary form only
Original Title
Analise de torio em fluorescencia por energia dispersiva de raios-x, utilizando uma fonte de Se-75
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Source
14. Annual Meeting of the Brazilian Chemical Society; Caxambu, MG (Brazil); 15-18 May 1991
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Journal Article
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