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Biomedical subjects

R Fiore

Publications and source records attributed to R Fiore.

At least 19 recordsLinked to original sources
PubMed1988

Hormonal profile and androgen status during the menstrual cycle in women with acne.

The androgen excess in women with acne can play an important role in gynecological endocrinology. LH, FSH, PRL, Testosterone (T), Androstenedione (A), Deydroepiandrosterone sulphate (DHEA-S) and Progesterone (P) were investigated in 21 women with uncomplicated idiopathic acne during the menstrual cycle. LF/FSH ratio greater than 3 was found in 7 cases (36.8%). Total T values were high in 90.4% of the whole group of women with acne (mean +/- SD 618.6 +/- 253.6, normal range 92-352 pg/ml). An ovulatory pattern of P was found in 66.65% of women with acne. Hyperprolactinemia was found in 23.6% of cases. The common denominator for ovulatory dysfunction in these women seems to be elevated LH levels, rather than elevated T levels.

Acne Vulgaris↗
PubMed1988

Embryonal carcinoma in two cases of androgen insensitivity syndrome: clinical, endocrinological and pathological features.

Embryonal carcinoma in two cases of complete androgen insensitivity syndrome (CAIS) is reported. In both cases gonadectomy carried out for prophylactic purposes led to the discovery of a localized embryonal carcinoma with areas of anaplastic seminoma in one case. In non-neoplastic tissue, gonad morphology in both cases was typical of AIS. Prevalently hypotrophic aspects, especially in the interstitial gland, were found in case 2. This may explain the different endocrine profile in the two cases before gonadectomy. Our study, aside from series of psycho-sexual problems, shows, according to all Authors, that the most serious complication is the high risk of malignancy after puberty in patients with AIS.

Adolescent↗
PubMed1987

Neonatal diabetes mellitus: evaluation of pancreatic beta-cell function in two cases.

Two cases of neonatal diabetes mellitus, a transient form and a permanent form, are described. Comparing their clinical presentations and courses, we exclude the possibility of an early differential diagnosis based on clinical or laboratory data. We hypothesize that only repeated dynamic evaluations of pancreatic beta-cell function could be useful to differentiate the two forms.

Blood Glucose↗
PubMed1987

Management, therapy and outcome of treatment in women with pelvic endometriosis.

Sixty-four cases of endometriosis treated between 1980 and 1985 were reclassified according to the R-A.F.S. Twenty-eight of the patients (43.7%) were followed for 24-39 months: in this group we evaluated the efficiency of medical treatment (Danazol), combined medical and conservative surgical or definitive surgical treatment on the basis of the persistence, complete or partial regression of the symptoms. In this group of patients the symptoms regressed completely in 39.28% of the cases; in 28.57% there was a partial regression and persistence or recurrence of the symptoms were reported in 32.14%. These results suggest that the classification system is a key to interpreting treatment.

Adolescent↗
PubMed1986

Endocrine pancreatic function in insulin-dependent diabetic pregnant women.

In order to better understand the role of A- and B-cell function in diabetic pregnancy, we studied four groups of pregnant women at week 34-36 of gestation. Seventeen were healthy controls (C), 24 had gestational diabetes (GD), 16 had type 2 diabetes (NIDD) and 37 had type 1 diabetes (IDD). At times -20, 0, 20, 30, 45, 60, 90 and 120 min from the beginning of a 30 min infusion of 30 g of arginine intravenously, plasma glucose, glucagon (IRG) and C-peptide (CPR) were measured. Plasma glucose was higher in diabetic than in control subjects. IRG values were also higher in the GD and the NIDD women. CPR values were similar to, or slightly higher than control values in the GD and the NIDD and were much lower in the IDD women. All three variables increased during the arginine infusion in all groups, with the exception that CPR remained unchanged in the IDD. The CPR/IRG molar ratio was similar in control, GD and NIDD women; in the IDD, it was much smaller than in the other groups and was not affected by arginine. In all the diabetic patients, IRG was negatively correlated with the maternal weight gain and in the IDD IRG was positively correlated with the increase in the insulin need and with the CPR levels. In conclusion diabetes appeared to enhance the A-cell function also in pregnancy, possibly impairing the 'facilitated anabolism' and stressing the 'accelerated starvation' which are typical of normal pregnancy. Glucagon was confirmed as one possible determinant of the insulin resistance seen in diabetic pregnancy.

Arginine↗
PubMed1986

Developmental aspects of the offspring of diabetic mothers.

This study examined the effect of some maternal factors on the pre- and postnatal development of a group of infants of diabetic mothers (IDMs). Body weight, length and head circumference were measured at birth and at 3, 6, 12, 24, 36, and 48 months of age. No differences were observed in pre- and postterm growth when IDMs were subdivided according to the maternal White class or pregnancy complications. Poor metabolic control during pregnancy resulted in excessive and abnormal prenatal growth; the fetal weight increased progressively during the last 3 weeks of gestation, while little or no increase was observed in fetal length or the head circumference which at 37 weeks both were already higher than (length) or similar to (head circumference) those of normal babies at term. Children of mothers with poor metabolic control during pregnancy showed significantly higher values for weight and weight/height ratio in infancy than children of well controlled mothers. Female offspring contributed most to the differences.

Analysis of Variance↗
PubMed1984

Antiviral therapy in HBsAg-positive chronic liver disease (HBsAg+ve CLD): how many patients really need it?

One hundred and seventy-one consecutive patients with HBsAg+ve CLD were investigated in order to assess whether they were actively replicating the hepatitis B virus, and therefore eligible for antiviral therapy. Our results show that only 5.8% of patients were actively replicating B virus and therefore antiviral therapy, when available, could be used only for a small subgroup of patients suffering from CLD due to hepatitis B virus chronic infection.

Adult↗
PubMed1983

Interaction of AMP with cytosolic apo-aspartate aminotransferase.

Interaction of cytosolic apo-aspartate aminotransferase with AMP has been studied under equilibrium conditions; e.g., equilibrium dialysis and spectrophotometric titration. Results show that a 1:1 stoichiometric complex AMP-apo-aspartate aminotransferase monomer is formed. The calculated dissociation constants with the two different experimental techniques are 40.4 x 10(-6) M-1 and 31.4 x 10(-6) M-1, respectively. These findings substantiate a previous hypothesis of control of the reconstitution of cytosolic apo-aspartate aminotransferases exerted by AMP.

Adenosine Monophosphate↗