PubMed HealthSearch

Biomedical subjects

G Serventi

Publications and source records attributed to G Serventi.

14 recordsLinked to original sources

[Experimental study on hepatic encephalopathy: EEG and blood amino acid findings].

The AA. describe a method of gradual occlusion of the portal vein in the rat to induce a hepatic encephalopaty. This method allows to realise a condition of hepatic ischemia and a portal hypertensive state accompanied by spontaneous portal-systemic shunts. These two factors produce a hepatic encephalopaty like in cirrhotic state or in patients after portal systemic anastomosis. A part from similar behavior at the beginning of the encephalopaty it is possible to define two classes of animals: one showing a slow recovery and one showing a transient and slight improvement followed at the end by the death of the animal. The AA. found a definite correlation amoung the clinica, EEG's, serum aminoacids and biochemical data. Probably the different anatomical and phisiological aspects of the induced portal systemic shunts and the different ways of hepatic rivascularization may determine the two different evolutions of the animals.

Amino Acids

[Cystine aminopeptidase (CAP) in induced labour and puerperium (author's transl)].

Serum cystine-animo-peptidase (CAP) is a valid test for placental function. We found it interesting following up the variations of CAP during induced labour and early puerperium; with this aim in view we determined the values of the enzyme in 33 pregnant nullipares. Six blood samples were taken from each woman. (174 determinations in all): 1) before labour; 2) at 5 cm. dilatation of the uterine neck; 3) immediately after the expulsion of fetus; 4) two hours after delivery; 5) first day of puerperium; 6) in the fourth day of puerperium. Statistical analysis -- Wilcoxon's test and rank bivalent variants analysis of Friedman (X2r) -- show that the variations of values in the first four groups are not statistically significant; values from 1th and 4th day of puerperium show a mean reduction in level of CAP which is remarkable and statistically significant.

Adult

Lactoferrin in synovial fluid.

The synovial lactoferrin (LF) concentrations of 59 patients with active rheumatoid arthritis were determined. The median value of LF was 4.64+/-3.59 mg/100 ml, but in degenerative arthropathy the levels of the metal-protein were much lower and often not titratable. These variations in the LF concentration explain the low blood-iron levels in inflammatory states, even when the concentration of the metal-protein is not statistically correlated in inflammatory tests, IgG, complement fractions (of the normal or alternate pathway), or variations of other protein fractions of leucocyte origin.

Arthritis, Rheumatoid

[Oral and i.v. iron therapy in haemodialysis patients (author's transl)].

Low serum iron level with a transferrin saturation below 16% is a crucial aetiologic factor of anaemia in haemodialysed patients. Current therapy usually is a correct dialytic and dietetic treatment and i.v. iron supply. Two groups of haemodialysis patients with low serum iron but a normal transferrin saturation, have been studied by comparing the efficacy of the i.v. and the oral iron supply. The serum iron of the two groups changed from low to normal level with highly significant difference. Haemoglobin and haematocrit did not change because of the normal transferrin saturation before the treatment. In conclusion, in uraemic patients treated by chronic dialysis, the oral and the i.v. iron therapy probably give the same result.

Administration, Oral

[Cystine-amino-peptidase (C.A.P.) and D.B.P. in "at risk" pregnancy with "poor intrauterine fetale growth" (P.I.F.G.) (author's transl)].

The normal range of serum cystine-amino-peptidase (C.A.P.) in 54 cases of uncomplicated pregnancies was established. 21 patients whose pregnancies were though to be "at risk" were serially monitored by sonar biparietal cephalometry and serum cystine-amino-peptidase determination. The results show that exists a correlation between C.A.P. and biparietal cephalometry values. Furthermore the "predictive power" towards neonatal conditions (by birth weight and Apgar score determination) was of 77,55% for the biparietal cephalometry and 76,10% for C.A.P.

Aminopeptidases

[Serial determinations of serum oxytocinase and ultrasonic biparietal cephalometry in normal and high-risk pregnancies].

The value of sonor biparietal cephalometry and serum oxytocinase that we have obtained with weekly simultaneous determinations in 14 females with normal pregnancy and in 5 with pathological pregnancy, from 24th to 39th week, show a statical positive relation. Serum oxitocinase determination against hormonal tests of the phetoplancental function (urinary oestriol, pregnandiol, serum HCS, ecc.) give advantages: it is the easyer, faster and less espandove determination. Therefore we think that it is helpful to determin togheter serial values of sonar biparietal cephalometry and serum oxytocinase to anticipate the endouterine fetal growth retardation.

Aminopeptidases