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Biomedical subjects

A Notter

Publications and source records attributed to A Notter.

At least 19 recordsLinked to original sources
PubMed1987

[False aneurysm of the superior mesenteric artery complicating a pancreatic pseudocyst].

The authors report a case of false aneurysm of the superior mesenteric artery, complicating acute pancreatitis. They insist on the sonographic signs of "the cyst within a cyst"; the presence of a cystic lesion located within a larger mass an US Scanning is highly suggestive of a false aneurysm included in a pseudocyst. They demonstrate the correlation between US Scanning, CT Scan and arteriogram.

Aneurysm↗
PubMed1979

[Lactic acid in the human umbilical cord. Influence of glycolysis in the blood in cord and in cordonal tissue (author's transl)].

The blood staid in human umbilical cord increases his lactate concentration (about + 4 mg/l/mn, in average). It is the fact of an high metabolic activity of foetal erythrocytes for glycolysis, but also of action of cordonal tissue itself. This tissue, after elimination of blood, allows an high concentration of lactate, which increases when cord is kept at room temperature, reaching and rising above 1 or 2 g/kg, after many hours. This glycolytic process indicates than cord tissue has a metabolic activity which seems to be in relation with the high lactate concentration of the amniotic fluid.

Erythrocytes↗
PubMed1978

Our surgical approach towards the treatment of urethrocele and urethral fistula.

A new technique, described in the text, has been elaborated inspired by that of Monseur (1968) for urethral techniques. It has been performed with success in three paraplegics and in one incomplete tetraparesis. The plastic reconstruction of the diseased part of the urethra after excision of the stenosis and a fistula or diverticula by rotation and fixation to the subcavernal groove creates, in fact, an enlarged neo-urethra rendering the recurrence of the primary lesion practically impossible. This technique, first applied to spinal cord injuries, has been extended with permanent success to other lesions, such as tuberculosis stenosis and malformations.

Diverticulum↗
PubMed1978

[Lactate dehydrogenase and its isoenzymes in human umbilical cord tissue].

Study on umbilical cord tissue, completely bloodless, for determination of lactate deshydrogenase activity and its distribution among the five iso-enzymes. Comparison with placenta, amniotic fluid, serums of blood of cord and of mother. Cord tissue is very active (about 360 muKatals, in average) and it is a similar result in placenta (as it is possibly bloodless). Blood serum of cord is more active than amniotic fluid, which is more active than maternal serum, but they are 80 to 200 times less active than cord tissue. After electrophoresis, a very large predominance of the slow iso-enzymes L.D.H. 4--5 is found in cord tissue (72%), amniotic fluid (67%) and placenta (56%), whereas the fast iso-enzymes L.D.H. 1--2 are predominant in the serums of cord blood and of mother. These data indicate an intense metabolic activity in the cord tissue, which has also an high level of lactate, and this seems related to the foetal metabolism for anaerobic glycolysis in oxygen weakly provided tissues.

Amniotic Fluid↗
PubMed1977

[Cholinesterases and arylesterase in the umbilical cord, the placenta, and the amniotic membrane, in the female at term].

Cholinesterasic activity of umbilical cord (tissue), completely bloodless, is exclusively due to pseudocholinesterase. Cholinesterase is more active in placenta than in cord; it is an acetylcholinesterase at 80 per cent. Both forms coexist, about equally, in amniotic membrane. A considerable arylesterasic activity is proved in cord, placenta and membrane, the greatest activity being in placenta. Comparing the greater activity in maternal plasma and cord blood's plasma to the very weak activity in amniotic fluid, it is possible to think that cork, membrane, placenta and also amniotic fluid pseudocholinesterase and arylesterase, come from plasma. On the contrary, placental acetylcholinesterase seems original and probably is the source of this enzyme activity in amniotic fluid.

Acetylcholinesterase↗
PubMed1976

[Cholinesterases (acetyl and pseudocholinesterase) in human amniotic fluid].

Study on 41 cases. The cholinesterasic activity of human amniotic fluid, free from blood, is very weak, in average 0,10 microkatal, approximatively 300 times weaker than mother's serum. In this "total cholinesterase", we find a large amount (about 40%) of acetylcholinesterase. Amniotic cholinesterases have an prominent placentary origin, with, in addition, a likely activity proceeding from cellular elements.

Acetylcholinesterase↗
PubMed1975

[Amniotic fluid arginase in women at term].

Study on 34 cases. A considerable arginasic activity is observed in amniotic fluid in women at the end of pregnancy. This activity is weak, but increased by Mn2+ (about 5 to 8 times). The total amniotic fluid is more active than the surpernatant, the deposit of which has been eliminated. An important part of arginasic activity results from the elements of the deposit (amniotic cells, foetal cells and eventualy erythrocytes in hemorragic amniotic fluid).

Amniotic Fluid↗