BackgroundSickle cell disease (SCD) is a genetic disease caused by an individual inheriting an allele for sickle cell hemoglobin from both parents and is associated with unusually large numbers of immature blood cells, containing many long, thin, crescent-shaped erythrocytes. It is a disease prevalent throughout many populations. The use of medicinal plants and nutrition in managing SCD is gaining increasing attention.MethodsThe antisickling effects of Solenostemon monostachyus (SolMon), Carica papaya seed oil (Cari-oil) and Ipomoea involucrata (Ipocrata) in male (HbSSM) and female (HbSSF) human sickle cell blood was examined in vitro and compared with controls, or cells treated with glutathione or an antisickling plant (Vernonia amygdalina; VerMyg).ResultsLevels of sickle blood cells were significantly reduced (P < 0.05) in all the plant-extract treated SCD patients’ blood compared with that of untreated SCD patients. RBCs in SolMon, Ipocrata, and Cari-oil treated samples were significantly higher (P < 0.05) compared with VerMyg-treated samples. The Fe2+/Fe3+ ratio was significantly reduced (P < 0.05) in all plant extract-treated HbSSM samples compared with controls. Hemoglobin concentration was significantly increased (P < 0.05) by SolMon treatment in HbSSF compared with VerMyg. Sickle cell polymerization inhibition exhibited by SolMon was significantly higher (P < 0.05) compared with that of VerMyg in HbSSF blood. Sickle cell polymerization inhibition in SolMon and Ipocrata were significantly higher (P < 0.05) compared with VerMyg in HbSSM blood. All plant extracts significantly reduced (P < 0.05) lactate dehydrogenase activity in both HbSSM and HbSSF-treated blood. Catalase activity was significantly increased (P < 0.05) in HbSSF blood treated with Ipocrata compared with glutathione. Cari-oil treated HbSSM and HbSSF blood had significantly increased (P < 0.05) peroxidase activity compared with controls.ConclusionsMethanolic extracts from S. monostachyus, C. papaya seed oil and I. involucrata exhibited particular antisickling properties coupled with the potential to reduce stress in sickle cell patients. Each plant individually or in combination may be useful for the management of sickle cell disease.
Benzyl isothiocyanate (BITC) is toxic in high concentration. The capacity of Aspergillus niger, microwave and ultraviolet radiations to reduce the BITC levels in Carica papaya Linn seed oil were assessed in vitro. BITC at different concentrations were periodically exposed to microwave and ultraviolet radiations for 30 min and 10 h, respectively; and to identify Aspergillus niger for 4 days. Microwave radiation significantly reduced (p<0.05) BITC levels (0.0272, 0.0544, and 0.0816 μmol) to 12.19, 8.99 and 27.5 % respectively within 15 min. Ultraviolet radiation significantly reduced (p<0.05) BITC levels at all the concentrations. A. niger significantly increased (p<0.05) BITC degradation on days 2 and 4 at 0.816, 1.36 and 2.72 nmol. Glutathione activity was significantly increased (p<0.05) while glutathione S-transferase activity significantly reduced (p<0.05) at all concentrations on days 3 and 4 respectively. The three techniques are possible models for improving the dietary consumption of the oil.
Aframomum danielli is one of the African spices used in folklore medicine for the management of several diseases. This study identified the phytochemical components present in the n‐hexane seed extract of the A. danielli by gas chromatography‐mass spectrometry (GC‐MS) analysis and also evaluated the anti‐cancer potential of the identified phytochemicals by performing molecular docking against human Vascular Endothelial Growth Factor (VEGF) using Molegro Virtual Docker. The GC‐MS analysis identified the presence of phytochemical components caryophyllene (RT: 18.479), humulene (RT: 19.189), 2‐butanone (RT: 22.976), benzenesulfonamide (RT: 31.651) and 2‐pyridine acetic acid (RT: 32.446). 2‐Butanone was the strongest binding ligand (‐65.744 kcal/mol) while caryophyllene was the weakest bind lingand (‐56.311 kcal/mol). These compounds showed relative strong docking to VEGF with docking energies comparable to an anticancer drug, bevacizumab (‐77.883 kcal/mol). This in silico molecular docking study has shown that these phytochemical components could be responsible for anti‐cancer properties of A. danielli.
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