Precancerous pathology evoked by hexachlorobenzene treatment.

The porphyrinogenic and carcinogenic ability of hexachlorobenzene (HCB) was assayed in male and female gold hamsters, and histological examinations of tissue alterations were performed. So it was studied, in liver: a) porphyrin content which was significantly increased at five months of HCB treatmen...

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Detalles Bibliográficos
Autor principal: Ríos de Molina, M.C
Otros Autores: Iglesias, S., Lauría, L., San Martín de Viale, L.C
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: 1996
Acceso en línea:Registro en Scopus
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Registro en la Biblioteca Digital
Aporte de:Registro referencial: Solicitar el recurso aquí
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024 7 |2 scopus  |a 2-s2.0-0030341334 
024 7 |2 cas  |a heme, 14875-96-8; hexachlorobenzene, 118-74-1, 55600-34-5; porphyrin, 24869-67-8; Heme, 14875-96-8; Hexachlorobenzene, 118-74-1; Porphyrins 
040 |a Scopus  |b spa  |c AR-BaUEN  |d AR-BaUEN 
100 1 |a Ríos de Molina, M.C. 
245 1 0 |a Precancerous pathology evoked by hexachlorobenzene treatment. 
260 |c 1996 
270 1 0 |m Ríos de Molina, M.C. 
506 |2 openaire  |e Política editorial 
520 3 |a The porphyrinogenic and carcinogenic ability of hexachlorobenzene (HCB) was assayed in male and female gold hamsters, and histological examinations of tissue alterations were performed. So it was studied, in liver: a) porphyrin content which was significantly increased at five months of HCB treatment, specially in males, and the pattern of accumulated porphyrins which was altered independent of the sex, b) haem pathway enzymes:delta aminolaevulinic acid synthase, ferrochelatase and porphyrinogen carboxylyase (PCL); among which only PCL appeared to be altered just at ten months of HCB feeding. While thyroid gland and kidney remained unaltered along the treatment time, liver and spleen exhibited a noticeable size variation and morphological alterations. In fact the spleen in treated animals was hypotrophic showing a red pulp less developed with respect to the Malpighian corpuscles and many macrophages with iron deposits. Respect to the liver, enlargement in size of hepatocytes, high content of iron deposits, no PAS positive structures in the cytoplasm, several small lipid droplets, microsteatosis although no cytonecrosis, polymorphic nuclei, and proliferations of nucleoli were observed. Therefore HCB is able to cause precancerous pathology and to induce porphyria in hamsters, but not hyperthyroidism, upon this experimental conditions. By the way, males were found to be a good experimental model, better than females, to study the earliest relations between porphyria and cancer.  |l eng 
593 |a Departamento de Química Biológica, Universidad de Buenos Aires, Argentina 
690 1 0 |a HEME 
690 1 0 |a HEXACHLOROBENZENE 
690 1 0 |a PORPHYRIN 
690 1 0 |a ANIMAL 
690 1 0 |a ARTICLE 
690 1 0 |a DRUG EFFECT 
690 1 0 |a ENZYMOLOGY 
690 1 0 |a FEMALE 
690 1 0 |a HAMSTER 
690 1 0 |a KIDNEY 
690 1 0 |a LIVER 
690 1 0 |a MALE 
690 1 0 |a METABOLISM 
690 1 0 |a ORGAN SIZE 
690 1 0 |a PATHOLOGY 
690 1 0 |a SPLEEN 
690 1 0 |a SYRIAN HAMSTER 
690 1 0 |a THYROID GLAND 
690 1 0 |a ANIMALS 
690 1 0 |a CRICETINAE 
690 1 0 |a FEMALE 
690 1 0 |a HEME 
690 1 0 |a HEXACHLOROBENZENE 
690 1 0 |a KIDNEY 
690 1 0 |a LIVER 
690 1 0 |a MALE 
690 1 0 |a MESOCRICETUS 
690 1 0 |a ORGAN SIZE 
690 1 0 |a PORPHYRINS 
690 1 0 |a SPLEEN 
690 1 0 |a THYROID GLAND 
700 1 |a Iglesias, S. 
700 1 |a Lauría, L. 
700 1 |a San Martín de Viale, L.C. 
773 0 |d 1996  |g v. 46  |h pp. 71-81  |k n. 2  |p Acta Physiol Pharmacol Ther Latinoam  |x 03276309  |w (AR-BaUEN)CENRE-1948  |t Acta physiologica, pharmacologica et therapeutica latinoamericana : órgano de la Asociación Latinoamericana de Ciencias Fisiológicas y [de] la Asociación Latinoamericana de Farmacología 
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856 4 0 |u https://hdl.handle.net/20.500.12110/paper_03276309_v46_n2_p71_RiosdeMolina  |y Handle 
856 4 0 |u https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03276309_v46_n2_p71_RiosdeMolina  |y Registro en la Biblioteca Digital 
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