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Biomedical subjects

A Fiumara

Publications and source records attributed to A Fiumara.

At least 55 records · Page 3Linked to original sources

Inter- and intrafamilial variability in mucolipidosis II (I-cell disease).

In this paper nine patients with mucolipidosis II (I-cell disease) are described. They had clinical features commonly found in mucolipidosis II, including disproportionate dwarfism, coarse facial features and mental retardation. However, there was remarkable variability in age of onset, organ manifestation and radiological findings. Some had unusual clinical symptoms including pericardial effusion and profound brain atrophy. Striking differences in phenotypic expression were also seen in two affected siblings. Clinical heterogeneity is observed not only in mucolipidosis II but also in many other lysosomal storage disorders. The factors that may contribute to this clinical diversity are discussed.

Age of Onset↗

Immunocytochemistry of muscle cytoskeletal proteins in acid maltase deficiency.

Immunocytochemistry of dystrophin, spectrin, vinculin (sarcolemma-specific proteins), and desmin (an intermediate filament protein) were investigated in 5 patients with acid maltase deficiency (AMD). One patient had infant onset, 2 had childhood onset, and 2 had adult onset. All had a vacuolar myopathy with autophagic vacuoles containing glycogen and cytoplasmic degradation products. Dystrophin, spectrin, and vinculin were localized at the sarcolemma as in normal muscle fibers. Within the cytoplasm of many fibers, immunoreactivity for the three proteins was seen as single or multiple spots or as circular structures, which most likely corresponded to the limiting membrane of vacuoles. Desmin was overexpressed at the periphery of some vacuoles. It is plausible that, before exocytosis occurs, sarcolemma-specific proteins appear within the vacuole membrane. Vacuole immunolabeling frequently occurred in the patients with childhood and adult onset AMD, but very rarely occurred in the case with infant onset. We hypothesize that a reduced exocytosis rate might explain the infrequent vacuole immunolabeling and the early onset of the infant form of the disease.

Adult↗

Lateral dermoid cyst of the tongue: case report.

The case of a young patient with a lingual dermoid cyst is presented. This case is unusual for the occurrence of the mass within the tongue, for its lateral localization, and for the association with other minor anomalies such as hypomelanotic areas, synophrys, hypertelorism and low-set and poorly structured ears. Bilateral broad, short fifth metacarpals with low-set fifth fingers of the hands were also present. A full clinical history, instrumental data, subsequent operative procedures and hystologic examination of the cyst, are described.

Abnormalities, Multiple↗

Congenital muscular dystrophy: correlation of muscle biopsy and clinical features.

Six patients with congenital muscular dystrophy examined from January, 1990 to January, 1993 are presented. Vastus lateralis muscle biopsies were performed on all patients. Five of 6 patients had "pure" congenital muscular dystrophy without evidence of central nervous system disease. Of these 5 patients, 2 had mild courses, 2 moderate, and 1 severe. Possible correlation between severity of muscle pathology and severity of clinical course in "pure" congenital muscular dystrophy patients is discussed.

Biopsy↗

Syndactyly type 1 with cataracts and mental retardation.

We report a child affected by a malformation syndrome characterized by unusual facies, congenital cataracts, mental retardation, bilateral soft tissue syndactyly of the 3rd and 4th fingers and bilateral partial syndactyly of the 2nd and 3rd toes. The overall clinical picture in this patient is not similar to other cases previously reported.

Abnormalities, Multiple↗

Plasma beta-endorphin levels and natural-killer cells in two cases of congenital indifference to pain.

We have investigated plasma beta-endorphin (beta-E), ACTH, and cortisol in two cases of congenital indifference to pain (CIP), a rare syndrome characterized by unresponsiveness to painful stimuli. As the two patients had frequent skin infections, we also studied lymphocyte response to mitogens in the absence or presence of beta-E. In addition, we explored a series of lymphocyte membrane antigens related to different aspects of the immune response, such as CD3+, CD4+, CD8+, B, NK Leu 7, Leu 9, and Leu 19, anti-interleukin-2 receptor (anti-TAC). Plasma beta-E levels in the two patients were significantly higher than in controls, whereas plasma ACTH and cortisol levels were normal. Lymphocyte response to the mitogen phytohemagglutinin was normal. The expression of Leu 7, Leu 9, and Leu 19, three antigens related to natural killer cells, was decreased by about 50%. The results indicate that in the two cases of CIP studied, high plasma beta-E levels are associated with a reduction in the expression of natural killer cells. This suggests that the two phenomena are specifically related to each other. These data represent further evidence of the possible pathophysiological relevance of the neuroendocrine-immune feedback.

Adolescent↗

Patient with multiple congenital anomalies and decreased production and processing of procollagen in cultured fibroblasts.

We report on a patient with hip and elbow dislocations, joint hyperextensibility, peculiar facial appearance, torticollis, cryptorchidism, unilateral hexadactyly, and other minor anomalies. Cultured cells from this patient produce less type I procollagen and have a slower rate of processing of type I procollagen to collagen in the culture medium. We think that the pattern of clinical anomalies constitutes a previously unreported syndrome with type I procollagen defect as a manifestation of the syndrome.

Abnormalities, Multiple↗

Sanfilippo syndrome type D in two adolescent sisters.

We report on two adolescent sisters with Sanfilippo syndrome type D with some clinical features different from other cases previously described. They are the oldest cases reported to date and provide new clues about the course of the disease. Enzymatic and immunological characterisation of the patients' fibroblasts indicated deficiency of N-acetylglucosamine-6-sulphate sulphatase (GlcNAc-6S sulphatase). However, Northern blot analysis showed apparently normal mRNA encoding GlcNAc-6S sulphatase. These findings suggest that abnormal translation or premature degradation may be responsible for the enzyme defect in these cases of Sanfilippo syndrome type D.

Adolescent↗

Late-onset globoid cell leukodystrophy. Report on seven new patients.

During the past 12 years, ten cases of globoidcell leukodystrophy (GLD) have been followed up: seven of these patients were affected by the late infantile form. The authors point out the clinical aspects and the course of these patients and stress the high frequency of this form of GLD in Sicily.

Brain↗

Increased aggressiveness of thyroid cancer in patients with Graves' disease.

To evaluate whether coexistence of Graves' disease affects the prognosis of thyroid cancer we examined the clinical and pathological characteristics of 22 differentiated thyroid carcinomas concomitant with hyperthyroidism; 13 were associated with Graves' disease, and 9 with autonomous thyroid nodules. Carcinomas were identified in a consecutive series of 359 hyperthyroid patients (132 with Graves' disease and 227 with autonomous thyroid nodules) who underwent surgery during a 6-yr period. One hundred and thirty-seven thyroid carcinomas were found in the 582 euthyroid patients operated on in the same period. In Graves' patients, carcinomas were more often multifocal (46.1% vs. 0%), locally invasive (61.5% vs. 11.1%), and metastatic to lymph nodes (61.5% vs. 11.1%) or to distant sites (23.0% vs. 0%) than in patients with autonomous thyroid nodules. In addition, carcinomas concomitant with Graves' disease were larger (3.3 +/- 1.8 vs. 1.0 +/- 0.7 cm) than the ones associated with autonomous thyroid nodules and showed a high recurrence rate. In euthyroid patients, aggressiveness of thyroid cancer was intermediate. Serum TSH levels were suppressed in all hyperthyroid patients with thyroid cancer. However, circulating thyroid-stimulating antibodies were present in 12 of 13 cancer patients with Graves' disease, but were absent in patients with autonomous thyroid nodules. Our study suggests, therefore, that TSAb may play a role in determining the high aggressiveness of thyroid cancer in Graves' disease patients and indicates that a vigorous treatment should be pursued in this subgroup of patients.

Graves Disease↗

High frequency of cancer in cold thyroid nodules occurring at young age.

In order to evaluate the risk of malignancy of cold thyroid nodules occurring in young as compared with adult patients, we studied a consecutive series of 2327 patients with a solitary cold thyroid nodule over a 6-year period. None of these patients had been previously irradiated in the neck or head. Fine needle aspiration of the nodule and cytologic examination were carried out in all patients and, on the basis of this evaluation and clinical examination 391 patients were selected for surgery; 109 patients were 4-20 years old and 2218 patients were older than 20 years. Malignancy was found in 11 (10.1%) and in 112 (5.0%) of cold thyroid nodules occurring in young and adult patients, respectively. The annual incidence of cold thyroid nodules in the population of the area studied was 5.2 vs 55.9 (per 10(5) inhabitants) in the young and in the adult group, respectively, and the annual incidence of thyroid cancer was 0.53 vs 2.82 (per 10(5) inhabitants) in the young and in the adult patients, respectively. The present study indicates, therefore, that in the absence of head or neck irradiation, cold thyroid nodules are much less frequent in young age, but that the malignancy rate of cold nodules occurring in young patients is 2-fold higher than in adults patients.

Adolescent↗

On a rare atypical form of metachromatic leukodystrophy (MLD): "neurological non-mld patients with low levels of arylsulphatase A". Description of two cases.

Two young patients (a brother and his sister) with low ASA levels who had myoclonic seizures since the age of eight years, were investigated by means of electrophysiological, neuroradiological and laboratory tests and submitted to a physical examination. In both patients, the disease started at the age of eight years with drug resistent myoclonic seizures. Intelligence was not impaired and ASA levels were lower than normal, but clinical features were not those of classic MLD. Electrophysiological study revealed altered SEPs and normal BAEPs (they are both altered in leukodystrophy). Therefore our findings conclude that tour patients must be considered "Neurological patients non-MLD with low levels of ASA".

Adolescent↗

Niemann-Pick disease type B: clinical signs and follow-up of a new case.

A girl affected by Niemann-Pick disease type B is reported. The patient presented unusual skin lesions of nummular eczematous dermatitis, signs of delayed puberty and stunted physical development, together with the typical symptoms involving visceral organs and lungs. This disease may therefore indirectly affect more body organs than assumed.

Bone Marrow↗