Search PubMed⌕ Search

Biomedical subjects

C Novak

Publications and source records attributed to C Novak.

25 records · Page 2Linked to original sources
PubMed1984

Suppressor cell responses in patients with rheumatoid arthritis: the effect of thymosin.

Peripheral blood lymphocytes (PBL) from patients with rheumatoid arthritis (RA) and age and sex-matched normal controls were compared in a Concanavalin A (Con A)-induced suppressor cell assay. Suppression induced by pre-incubation with Con A was significantly greater in PBL from RA patients than in PBL from normal controls. Preincubation with thymosin fraction 5, in the absence of Con A, also induced greater suppressor cell activity in PBL from normal controls. Preincubation with Con A and thymosin, simultaneously, induced suppression similar to that seen with Con A alone. These results suggest the presence of an immunoregulatory defect in RA, characterized by an excess of both Con A and thymosin-inducible suppressor cells, that may play a role in disease pathogenesis. The implications of these observations for immunotherapy of rheumatoid arthritis with thymosin are discussed.

Adult↗
PubMed1981

Evaluation of the relative effectiveness of methylphenidate and cognitive behavior modification in the treatment of kindergarten-aged hyperactive children.

This study of kindergarten-aged hyperactive children evaluated the effects of three modes of treatment in relation to an untreated control group. The treatments were administered over a 3-month period and included cognitive behavior modification, methylphenidate, and the two treatments combined. A follow-up assessment was done approximately 1 year later at the end of the first grade. Analyses of psychological, rating scale observational, and interview data showed that hyperactive children became less symptomatic over time; the data did not provide evidence indicating that any of the treatments studied was more effective than any other or than no treatment at all.

Attention Deficit Disorder with Hyperactivity↗
PubMedDate not supplied

A new tool for peptide separation.

A family of reagents has been developed (Pep-Seps) which provide separations of peptides based upon the presence or absence of a single type of amino acid. This separation is achieved through a reversible, covalent attachment of the peptide to the Pep-Seps reagents. Pep-Seps provide a more specific separation than most forms of HPLC and may be used to complement HPLC in peptide separations and isolations. Several specific applications will be discussed.

Arginine↗