Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 4 de 4
Filtrar
Mais filtros











Base de dados
Intervalo de ano de publicação
1.
Riv Eur Sci Med Farmacol ; 12(4-5): 253-8, 1990.
Artigo em Italiano | MEDLINE | ID: mdl-2129485

RESUMO

Red cell carbonic anhydrase isoenzymes I and II have been measured by means of cellulose acetate membrane electrophoresis in patients with chronic renal failure and dependent on periodic hemodialysis; these patients showed a chronic anemia due to many factors. Carbonic anhydrase isoenzymes were higher in uremic and anemic patients than in the controls. Since hemoglobin can act as a protons acceptor from the active site of carbonic anhydrase during the hydratation of CO2 (and vice-versa), the increase of carbonic anhydrase can facilitate, via the Bohr effect, the transfer of the oxygen to the peripheral tissues. Therefore an increase of red cell carbonic anhydrase can constitute a compensating mechanism of anemic hypoxia in uremic patients.


Assuntos
Anidrases Carbônicas/sangue , Eritrócitos/enzimologia , Diálise Renal , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Isoenzimas/sangue , Masculino , Pessoa de Meia-Idade
2.
G Clin Med ; 70(4): 263-6, 1989 Apr.
Artigo em Italiano | MEDLINE | ID: mdl-2767366

RESUMO

Iron status (expressed as serum ferritin and iron levels) has been compared in normal and in heterozygous beta-thalassemic subjects. A higher serum ferritin concentration has been found in beta-thalassemic males, showing, therefore, a shift towards super-normal values of the balance between tissue iron and serum ferritin levels. In beta-thalassemic subjects the serum ferritin levels have been found in the normal range and this seems to be correlated with an adequate and ready iron supply by protein transferrin to hyperplastic bone marrow. The higher urinary iron values in normal male subjects can be explained in this way: a large iron supply from the transferrin to the thalassemic erythroid cells limits the contribution from this protein to the urinary iron.


Assuntos
Ferritinas/sangue , Ferro/sangue , Ferro/urina , Talassemia/sangue , Talassemia/urina , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
4.
Minerva Med ; 78(5): 281-6, 1987 Mar 15.
Artigo em Italiano | MEDLINE | ID: mdl-3029632

RESUMO

Calcium pyrophosphate dihydrate crystal deposition disease is a clinical condition characterised by Gout-like synovitis (pseudogout), calcification on and around the joints and an arthropathy that is radiologically similar to osteoarthritis (chronic pyrophosphate arthropathy). Though all these radiological clinical aspects may coexist in the same patient this is often not the case. An examination of the X-ray data on the 68 cases studied which were diagnosed on the basis of the criteria proposed by McCarty, shows that the disease is relatively common especially in the over-fifties. When chronic pyrophosphate arthropathy is the only clinical manifestation of the disease differential diagnosis from the osteoarthrosis so common in the elderly is difficult and depends on the greater severity and progression of the joint damage that may often affect joints not subjected to weight such as the shoulder, unlike what happens in osteoarthritis.


Assuntos
Pirofosfato de Cálcio/metabolismo , Condrocalcinose/diagnóstico por imagem , Difosfatos/metabolismo , Idoso , Idoso de 80 Anos ou mais , Condrocalcinose/metabolismo , Cristalização , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Radiografia , Membrana Sinovial/metabolismo
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA