The frequency of overweight and obesity is rising globally.
These
disorders are prevalent health problems. It has a substantial correlation
with a number of health issues, including cardiovascular, metabolic,
and diabetes mellitus disorders. Lycopene (Lyc) is an acyclic structural
isomer of β-carotene and has powerful antioxidant properties
with various promising therapeutic effects. In this study, rats fed
a high-fat diet were examined to determine how lycopene affected metabolic
syndrome and kidney damage. After being acclimated, rats were divided
into 5 groups (
n
= 8/group) as follows: the first
group served as the control and was fed on a normal pelleted diet
(4.25% fat) until the end of the experiment. The second group (high-fat
diet; HFD) was fed on a high-fat diet (45.5 kcal% fat) composed of
24% fat, 24% protein, and 41% carbohydrate. The third and fourth groups
were fed on HFD and administered lycopene at 25 and 50 mg/kg bodyweight
orally every day. The fifth group (standard drug group) received HFD
and simvastatin (SVS; 10 mg/kg bodyweight orally daily) for 3 months.
Tissue samples from the kidney were taken for determination of the
biochemical parameters, lipid peroxidation (LPO), protein carbonyl
(PC), reduced glutathione (GSH), total thiol group, antioxidant enzymes,
namely, superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase
(GPx), and glutathione reductase (GR), in addition to renal mRNA expression
of nuclear factor erythroid 2-related factor 2 (Nrf2), renal levels
of inflammatory markers [tumor necrosis factor alpha (TNF-α),
interleukin-1 beta (IL-1β), and nuclear factor kappa-light-chain-enhancer
of activated B cells (NF-κB)], and apoptotic markers (BCL2 Associated
X (Bax), B-cell lymphoma 2 (Bcl-2), and Bax/Bcl-2 ratio). When compared
to the control group, the HFD group’s food consumption, body
weight, serum levels of glucose, uric acid, creatinine, LPO, PC, TNF-α,
IL-1β, Bax, and the Bax/Bcl-2 ratio all increased significantly.
In the kidney sample of HFD-fed rats, there was a downregulation of
Nrf2 mRNA expression along with a significant reduction in the enzymatic
activity of SOD, CAT, GR, and GPx. Lyc treatment was able to successfully
reverse HFD-mediated changes as compared to the HFD group. Consuming
lyc helps to prevent fat and renal damage in a positive way.