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The kinetics of reversal of pre‐sickled erythrocytes by the aqueous extract of Cajanus cajan seeds
Author(s) -
Ogoda Onah Johnson,
Akubue Paul I.,
Okide George B.
Publication year - 2002
Publication title -
phytotherapy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.019
H-Index - 129
eISSN - 1099-1573
pISSN - 0951-418X
DOI - 10.1002/ptr.1026
Subject(s) - cajanus , phytochemical , kinetics , chemistry , aqueous solution , methanol , nuclear chemistry , traditional medicine , chromatography , biochemistry , medicine , biology , horticulture , organic chemistry , physics , quantum mechanics
The aqueous methanol extract (3:1, v/v) of the seeds of Cajanus cajan was investigated for antisickling properties. The extract possessed significant antisickling activity and was found to be concentration‐dependent. The kinetics of reversal of presickled erythrocyte (HbSS) cells using the extract at 0.5 mg/mL, 1.0 mg/mL, 1.5 mg/mL, 2.0 mg/mL and 2.5 mg/mL showed first‐order kinetics with rate constants of 5.833 × 10 −3 min −1 , 6.143 × 10 −3 min −1 , 5.957 × 10 −3 min −1 6.00 × 10 −3 min −1 and 6.046 × 10 −3 min −1 , respectively, and with an average half‐life 115.6 min. Phytochemical screening of the extract revealed the presence of free amino acids, phenolic compounds, tannins, globulins and saponins. These results show that the extract has potential use in the management of painful episodes experienced by sickle cell patients. Copyright © 2002 John Wiley & Sons, Ltd.