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Biomedical subjects

F Martino

Publications and source records attributed to F Martino.

At least 73 records · Page 4Linked to original sources

Biochemical and clinical effects of vitamin E administration in homozygous beta-thalassemia.

In beta-thalassemic homozygotes, low plasma levels of tocopherols may induce a red blood cell (RBC) lipid peroxidation and consequent hemolysis. This is an indication to treat these patients with vitamin E. In this study 26 beta-thalassemic homozygotes aged 2-14 years, were given vitamin E, 10 orally and 16 parenterally, 300 mg per day for 15 days. Prior to administration and blood transfusion, as compared to normal subjects of the same age, plasma and RBC tocopherols were significantly lower, whereas RBC malonyldialdehyde (MDA) was significantly increased. In both groups, after tocopherol administration, an increase in plasma and RBC tocopherols and a decrease in RBC MDA were found. The significance of these variations was greater in the parenterally treated group than in orally treated group. The treatment with vitamin E, appears to be effective to reduce the RBC oxidative damage in homozygous beta-thalassemia, principally when administered parenterally perhaps because of its poor intestinal absorption in these subjects.

Adolescent↗

Evaluation of plasma iodothyronines in various stages of pregnancy.

Evaluation of thyroid status during the whole normal pregnancy was carried out by measuring serum total thyroxine (TT4), total 3,5,3' triiodothyronine (TT3), T3 resin uptake (T3(U)), 3,3',5' triiodothyronine (rT3), free thyroxine index (FTI), free thyroxine (FT4) and thyrotrophin (TSH) in 70 serum samples from 42 pregnant women being in a variable period from the 6th to the 40th week of pregnancy and in 14 serum samples from 14 non pregnant healthy women. The serum samples were divided in 7 groups, according to the gestational age of the subjects. Every group was formed by 10 samples collected within the same five weeks period. The levels of TT4, TT3, T3 (U) and rT3 were found significantly elevated during pregnancy, above the levels of the control group (p less than 0.01); the increase is very early. FTI remained in the range of normal non pregnant subjects without any significant change in all groups studied. FT4 concentration showed a progressive downward trend with gestational age. This fall became significant in the second group (11th to 15th weeks), when compared to the levels of non pregnant women (p less than 0.01) TSH mean values remained in the normal range within the three trimesters, though they showed some fluctuations.

Adult↗

[A case of chondrodysplasia. Dolichomelic spondylo-epiphyseal chondrodysplasia].

A case of late spondyloephiphyseal chondrodysplasia is described: a 16-yrs patient showing a diffused platyspondyly with a short thorax plus a remarkable dysplasia of femoral heads. The patient exhibited no internal organs, psychical, plasma, or endocrine alterations. The Authors stress the unusual aspect of the case, which exhibited normal stature in comparison with the usual pattern of spondyloepiphyseal chondrodysplasia described; in fact in the typical cases the general stature remains short. According to the Authors, the normal stature of this case might be related with the dolichomyelic aspect presented by the patient. This dolychomyelia is difficult to explain since endocrine abnormalities were not observed and hormone therapy have never been performed. Finally the course and prognosis of this disease is discussed in detail.

Adolescent↗

[Observations of the thyroid function after treatment of the laryngeal carcinoma with 60Co].

We have examined 16 patients with laryngeal carcinomas who had been submitted to laryngectomy and subsequent 60Co therapy (dose 60-70 Gy, thyroid exposure 50-60 Gy). After an interval of several years, some patients showed alterations of the thyroid function, i.e. a problematic hypothyreosis in two patients and a latent or compensated hypothyreosis in six patients. The latter could be demonstrated by several functional in-vitro tests (T3 saturation, T4, T3-RIA, TSHV, TRH). Especially the TRH test showed significant alterations in four patients. The results obtained from this relatively small number of cases correspond to the descriptions in literature of irradiation damages to the thyroid caused by the treatment of the laryngeal carcinoma. Despite the necessity of further control examinations of a greater number of patients, the results achieved hitherto suggest a prophylactic or substituting hormone treatment during the radiotherapy of the laryngeal carcinoma.

Adult↗

Effect of hyperglycemia on the growth hormone response to L-dopa in diabetic subjects.

Plasma growth hormone (GH) levels were measured before and after oral administration of L-dopa in 8 insulin-dependent juvenile diabetic patients, and in 6 non insulin-dependent maturity-onset diabetics, while they were hyperglycemic, and values were compared with those of normal children and adult subjects. Maturity-onset diabetics failed to show an increase in serum GH levels after L-dopa administration, while serum peak GH values of juvenile diabetic patients were not significantly different from those of normal adults and children. Hyperglycemia thus failed to prevent L-dopa induced growth hormone response in insulin-dependent juvenile diabetic patients.

Adolescent↗

Serum lipid pattern in beta-thalassaemia.

Serum lipids, phospholipid fractions and the composition of serum lipid fatty acids were studied in 20 children presenting beta-thalassaemia major, 20 heterozygous children and 20 normal controls. Total serum phospholipids, their fractions and cholesterol were significantly lower in patients with thalassaemia major. These changes were referred to hepatic damage and to severe anaemia, respectively. Some serum lipid polyunsaturated fatty acids were significantly decreased in patients with thalassaemia major as compared to heterozygotes and normal controls. Since these alterations are a sign of lipid oxidation, the causes of this phenomenon are discussed.

Child↗