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| Ferraz,H.B.; Quagliato,E.A.B.; Rieder,C.R.M.; Silva,D.J.; Teive,H.A.G.; Barbosa,E.R.; Cardoso,F.; Limongi,J.C.P.; Bezerra,J.M.F.; Andrade,L.A.F.; Allam,N.; Prado,R.C.P.; Tomas,V.. |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Parkinson's disease; Riboflavin; FAD; Glutathione; Iron; Hemin. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004000900002 |
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| Coimbra,C.G.; Junqueira,V.B.C.. |
| Abnormal riboflavin status in the absence of a dietary deficiency was detected in 31 consecutive outpatients with Parkinson's disease (PD), while the classical determinants of homocysteine levels (B6, folic acid, and B12) were usually within normal limits. In contrast, only 3 of 10 consecutive outpatients with dementia without previous stroke had abnormal riboflavin status. The data for 12 patients who did not complete 6 months of therapy or did not comply with the proposed treatment paradigm were excluded from analysis. Nineteen PD patients (8 males and 11 females, mean age ± SD = 66.2 ± 8.6 years; 3, 3, 2, 5, and 6 patients in Hoehn and Yahr stages I to V) received riboflavin orally (30 mg every 8 h) plus their usual symptomatic medications and all red... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Parkinson's disease; Riboflavin; Flavin-adenine dinucleotide; Glutathione; Iron; Hemin. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003001000019 |
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| Silva,D.; Cortez,C.M.; Louro,S.R.W.. |
| The binding of chlorpromazine (CPZ) and hemin to bovine serum albumin was studied by the fluorescence quenching technique. CPZ is a widely used anti-psychotic drug that interacts with blood components, influences bioavailability, and affects function of several biomolecules. Hemin is an important ferric residue of hemoglobin that binds within the hydrophobic region of albumin with high specificity. Quenching of the intrinsic fluorescence of bovine serum albumin (BSA) was observed by selectively exciting tryptophan residues at 290 nm. Emission spectra were recorded in the range from 300 to 450 nm for each quencher addition. Stern-Volmer graphs were plotted, and the quenching constant estimated for BSA solution titrated with hemin at 25ºC was 1.44 (± 0.05) x... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Chlorpromazine; Hemin; Albumin; Fluorescence quenching. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004000700004 |
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