Biomedical subjects

A Riccio

Publications and source records attributed to A Riccio.

At least 163 records · Page 9Linked to original sources

PubMed1978

[An atypical case of subacute sclerosing panencephalitis (SSPE), (with special reference to psychiatric and psychological evaluations)].

An atypical case of subacute sclerosing panencephalitis is described, with particular reference to its psychiatric and psychological aspects in the light of the neurological and laboratory data: slow-gamma electrophoresis of the spinal fluid, periodic delta signs in the EEG over about 6 yr, 1/160 blood titre of anti-measles virus antibodies. The history displayed an ingravescent dementia course and the patient's continuing survival for more than 11 yr makes the case the longest recorded in the literature. Both the psychiatric-psychological and neurological symptoms had occurred in distinct stages. It is suggested that neurological recrudescence was responsible for the pattern of symptomatological stabilisation followed by sudden relapses. The symptoms regarded as characteristic of the terminal stage have not yet appeared, especially on the neurological side.

Adult↗

PubMed1976

Further observations on carbamazepine plasma levels in epileptic patients. Relationships with therapeutic and side effects.

Plasma levels of carbamazepine, phenytoin and phenobarbital were monitored weekly over a period of 9 weeks in 20 epileptic patients unresponsive to treatment. No attempts were made to modify phenytoin and/or phenobarbital plasma levels; emphasis was on achieving carbamazepine plasma levels of 4 to 10 mug per milliliter. A remarkable drop in seizure frequency was attained within 2 to 3 weeks of monitoring, with carbamazepine plasma and concentrations within the desired range. Children disposed of the drug faster than adults. No effects of phenytoin and phenobarbital on carbamazepine plasma levels could be observed, while phenobarbital on carbamazepine plasma levels fluctuated remarkably without any relationship to carbamazepine levels. Transient leukopenia was present in most of the patients, while a significant reversible drop in red blood cells was observed in eight patients. The data reported confirm that with a careful monitoring of drug plasma levels, carbamazepine may exert a definite passive effect on seizure frequency in epileptic patients poorly responsive to therapy.

Adult↗

PubMed1975

Hamster alpha-amanitine-resistant RNA polymerase II able to transcribe polyoma virus genome in somatic cell hybrids.

A hamster cell line resistant to alpha-amanitine has been isolated (alpha-am-r, BHK-T6-G-1). Cell extracts of this mutant have an alpha-amanitine-resistant RNA polymerase II (nucleosidetriphosphate: RNA nucleotidyl-transferase, EC 2.7.7.6) activity as shown by DEAE-cellulose column chromatography. This mutation is dominant in interspecific hybrids with 3T3 mouse cells. In such hybrids polyoma virus can grow with equal efficiency in the presence or absence of the drug, thus indicating that the RNA polymerase of the unsusceptible parental cell can participate in the correct transcription of the viral genome.

Animals↗

PubMed1975

Bioavailability of two carbamazepine preparations during chronic administration to epileptic patients.

Two preparations of carbamazepine, as tablets and in syrup, were given for 8 weeks to 20 patients with epilepsy in a randomized crossover study. Weekly plasma levels were 3-21 mg/1 on dosages of 5-24 mg/kg/day. There was no difference in absorption or steady-state level between the two preparations. Carbamazepine 10, 11-oxide was constantly present when the level of carbamazepine was over 5 mg/l, and tended to be lower with the syrup.

Administration, Oral↗

PubMed1975

Soradic ulcerative mutilating acropathy with imbalance of free amino acids in the cerebrospinal fluid.

A case of sporadic ulcerative mutilating acropathy is described. Muscle biopsy showed signs of neurogenic atrophy. Motor nerve conduction velocity was slightly reduced. The muscles of the foot were completely unresponsive to electric stimulation of both femoral nerves. The content of free amino acids in serum and cerebrospinal fluid was determined by ion exchange chromatography, and compared with a control group. While in serum no significant changes were found, in CSF most amino acids showed great alterations, mainly consisting in an increase. It is suggested that the primary disturbance may be located in the spinal nerve roots.

Adult↗

PubMed1974