CONTEXT: This study aimed to evaluate the renoprotective action of linalool (LIN) on streptozotocin (STZ)-induced diabetic rats. OBJECTIVE: The pathological changes in diabetic nephropathy (DN) include oxidative stress, renal injury, matrix accumulation and podocyte abnormalities. We investigated the renoprotective actions of LIN, a monoterpene alcohol, present in herbal essential oils in STZ-induced diabetic rats with renal injury. MATERIALS AND METHODS: STZ-diabetic rats were administered LIN (25 mg/kg) for 45 days, after which the activities of key enzymes of glucose metabolism, collagen content, oxidative damage and expression of glucose transporter-1 (GLUT-1), transforming growth factor-β1 (TGF-β1), nuclear factor-κBp65 (NF-κB p65) and nephrin were analyzed. RESULTS: Diabetic rats displayed altered glucose metabolism, collagen accumulation and increased TGF-β1 and NF-κB expression in kidney. LIN treatment restored glucose-metabolizing enzymes, collagen content and GLUT-1 expression and also prevented nephrin loss. LIN also rescued kidney from oxidative stress and inflammation by decreasing the expression of TGF-β1 and NF-κB. Ultrastructural changes such as basement membrane thickening, reduction in podocyte number and loss of filtration barrier integrity in diabetic rats were mitigated by LIN. DISCUSSION AND CONCLUSION: The results of this study suggest that LIN can attenuate nephropathic changes induced in kidney of diabetic rats. These findings highlight the utility of LIN as a potential drug to treat renal damage in diabetic subjects.
CONTEXT: This study aimed to evaluate the renoprotective action of linalool (LIN) on streptozotocin (STZ)-induced diabeticrats. OBJECTIVE: The pathological changes in diabetic nephropathy (DN) include oxidative stress, renal injury, matrix accumulation and podocyte abnormalities. We investigated the renoprotective actions of LIN, a monoterpene alcohol, present in herbal essential oils in STZ-induced diabeticrats with renal injury. MATERIALS AND METHODS:STZ-diabeticrats were administered LIN (25 mg/kg) for 45 days, after which the activities of key enzymes of glucose metabolism, collagen content, oxidative damage and expression of glucose transporter-1 (GLUT-1), transforming growth factor-β1 (TGF-β1), nuclear factor-κBp65 (NF-κB p65) and nephrin were analyzed. RESULTS:Diabeticrats displayed altered glucose metabolism, collagen accumulation and increased TGF-β1 and NF-κB expression in kidney. LIN treatment restored glucose-metabolizing enzymes, collagen content and GLUT-1 expression and also prevented nephrin loss. LIN also rescued kidney from oxidative stress and inflammation by decreasing the expression of TGF-β1 and NF-κB. Ultrastructural changes such as basement membrane thickening, reduction in podocyte number and loss of filtration barrier integrity in diabeticrats were mitigated by LIN. DISCUSSION AND CONCLUSION: The results of this study suggest that LIN can attenuate nephropathic changes induced in kidney of diabeticrats. These findings highlight the utility of LIN as a potential drug to treat renal damage in diabetic subjects.
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Authors: Alberto Hernandez-Leon; Gabriel Fernando Moreno-Pérez; Martha Martínez-Gordillo; Eva Aguirre-Hernández; María Guadalupe Valle-Dorado; María Irene Díaz-Reval; María Eva González-Trujano; Francisco Pellicer Journal: Molecules Date: 2021-12-16 Impact factor: 4.411