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










Base de dados
Intervalo de ano de publicação
4.
Radiology ; 138(1): 129-36, 1981 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-7455073

RESUMO

Intrahepatic biliary dilatation on ultrasound has been reported as an early sign of biliary obstruction. This paper reports 12 patients with extrahepatic biliary obstruction in whome the extrahepatic biliary system was increased in caliber despite a normal appearance of the intrahepatic ducts. The bile ducts in all of these patients were evaluated with ultrasound and percutaneous transhepatic cholangiography. Computed tomography was performed in one case. The causes of obstructive jaundice included stricture, choledocholithiasis, and neoplasm. The common bile duct provides a sensitive indicator of biliary obstruction, and its demonstration by noninvasive or invasive means is mandatory even when the intrahepatic ducts appear to be normal.


Assuntos
Doenças dos Ductos Biliares/diagnóstico , Icterícia/complicações , Adulto , Idoso , Doenças dos Ductos Biliares/diagnóstico por imagem , Doenças dos Ductos Biliares/etiologia , Colangiografia , Colestase Extra-Hepática/complicações , Dilatação Patológica , Feminino , Humanos , Icterícia/etiologia , Masculino , Pessoa de Meia-Idade , Tomografia Computadorizada por Raios X , Ultrassonografia
6.
J Nucl Med ; 18(9): 893-5, 1977 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-893786

RESUMO

Gallium imaging has been of value in revealing the spread of inflammatory pancreatic disease to the anterior pararenal space. Recognition of this retroperitonel space and the potential usefulness of its imaging in the diagnosis of pancreatic diseases are discussed.


Assuntos
Radioisótopos de Gálio , Pancreatite/diagnóstico , Cintilografia , Espaço Retroperitoneal , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
7.
Ned Tijdschr Geneeskd ; 120(51): 2255-62, 1976 Dec 18.
Artigo em Holandês | MEDLINE | ID: mdl-1012384

RESUMO

PIP: 156 women, 12-20 weeks pregnant, applied for abortion at the Wilhelmo Clinic in Amsterdam; 102 abortions were granted. The 156 late-abortion seekers were compared with 282 early-abortion seekers and 490 pregnant women. The late-abortion seekers were significantly younger (P .05). A significantly greater number of women over 30 applied for early abortion (P .001). Unmarried or divorced women were more likely to apply to abortion (P .001). Nulliparae applied more frequently for late abortion, compared to early-abortion seekers (P .001). Women with only one child were more likely to be in the pregnancy group (p .05), with 2 children in the early-abortion group (p .001). Women from Surinam and the Antilles were more likely to be in the early abortion group (p .001). Of the late-abortion seekers, 9 had medical indications. Many had psychosocial problems; 91 had problems with partner relations. In 24 cases the delay in seeking abortion was due to a doctor. An ambivalent attitude toward the abortion existed in 22 of the patients. 83% of the late-abortion seekers and 11.3% of the early-abortion seekers had previously had an abortion. The contraceptive use of the late-abortion seekers was not regular. 1.3% of the late-abortion seekers and 9.9% of the early-abortion seekers were using IUDs at the time of conception.^ieng


Assuntos
Aspirantes a Aborto , Adulto , Anticoncepção/métodos , Divórcio , Relações Extramatrimoniais , Feminino , Humanos , Masculino , Gravidez , Segundo Trimestre da Gravidez
14.
Science ; 168(3934): 979-80, 1970 May 22.
Artigo em Inglês | MEDLINE | ID: mdl-4314985

RESUMO

Treatment of cultured rat pineal glands with norepinephrine or dibutyryl adenosine 3',5'-monophosphate causes a six- to tenfold stimulation of N-acetyltransferase. This enzyme converts serotonin to N-acetylserotonin, the immediate precursor of melatonin. The increased synthesis of melatonin caused by norepinephrine treatment appears to be the result of stimulation of N-acetyltransferase by an adenosine 3',5'-monophosphate mechanism.


Assuntos
Nucleotídeos de Adenina/farmacologia , Melatonina/biossíntese , Norepinefrina/farmacologia , Glândula Pineal/metabolismo , Transferases/metabolismo , Acetatos/metabolismo , Animais , Isótopos de Carbono , Técnicas de Cultura , AMP Cíclico/farmacologia , Cicloeximida/farmacologia , Norepinefrina/fisiologia , Glândula Pineal/efeitos dos fármacos , Glândula Pineal/enzimologia , Ratos , Serotonina/metabolismo , Estimulação Química , Trítio
16.
Science ; 167(3926): 1738-40, 1970 Mar 27.
Artigo em Inglês | MEDLINE | ID: mdl-4313580

RESUMO

In organ cultures of intact rat pineal glands, N(6)O(2')-dibutyryl adenosine 3', 5'-monophosphate stimulates the conversion of tritiated trytophan to tritiated melatonin, as does L-norepinephrine. Potential sites of stimulation of melatonin production by dibutyryl cyclic adenosine monophosphate are discussed, based on observations that the dibutyryl analog also stimulates the conversion of serotonin labeled with carbon-14 to carbon-14-labeled melatonin without altering hydroxyin-dole-O-methyl transferase activity or intracellular accumulation of serotonin labeled with carbon-14.


Assuntos
Nucleotídeos de Adenina/farmacologia , Melatonina/biossíntese , Glândula Pineal/metabolismo , Animais , Isótopos de Carbono , AMP Cíclico/farmacologia , Técnicas In Vitro , Norepinefrina/farmacologia , Glândula Pineal/efeitos dos fármacos , Glândula Pineal/enzimologia , Serotonina/metabolismo , Estimulação Química , Transferases/metabolismo , Trítio , Triptofano/metabolismo
18.
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...