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High-Fat Diet Induced Hedgehog Signaling Modifications during Chronic Kidney Damage.


ABSTRACT: Excessive consumption of dietary fats leads to the deposition of unnecessary metabolites and multiple organ damage. Lipids, important key regulators of Hedgehog signaling, are involved in triggering fibrotic chronic kidney disease. The present study encompasses the assessment of renal morphofunctional modifications and alteration of lipid metabolism influencing the changes in gene expression of hedgehog signaling pathway genes. Fifteen male Rattus norvegicus of 200 ± 25 grams weight were equally divided into three groups: control (standard rat chow), D-1 (unsaturated high-fat diet) and D-2 (saturated high-fat diet). Animals were provided with respective diets and were followed for 16 weeks. Both HFD-fed groups did not show overall body weight gain as compared to the control. While significant downregulation of hedgehog pathway genes was found in fatty diet groups. In comparison with the control group, Shh, Gli1, Gli2, and Gli3 were downregulated after the consumption of both unsaturated and saturated fatty diets. Ihh and Smo exhibit a similar downregulation in the D-1 group, but an upregulation was detected in the D-2 group. D-2 group also had an increased serum urea concentration as compared to the control (P = 0.0023). Furthermore, renal histopathology revealed tubular necrosis, glomerular edema, glomerular shrinkage, and hypocellularity. Collagen deposition in both HFD groups marks the extent of fibrosis summary figure. Extravagant intake of dietary fats impaired normal kidney functioning and morphofunctionally anomalous kidney triggers on Hh signaling in adult rats. These anomalies can be linked to an escalated risk of chronic kidney disease in adults strongly recommending the reduced uptake of fatty diets to prevent impaired metabolism and renal lipotoxicity.

SUBMITTER: Mehmood R 

PROVIDER: S-EPMC7718043 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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High-Fat Diet Induced Hedgehog Signaling Modifications during Chronic Kidney Damage.

Mehmood Rabia R   Sheikh Nadeem N   Khawar Muhammad Babar MB   Abbasi Muddasir Hassan MH   Tayyeb Asima A   Ashfaq Isbah I   Mukhtar Maryam M   Fatima Naz N  

BioMed research international 20201127


Excessive consumption of dietary fats leads to the deposition of unnecessary metabolites and multiple organ damage. Lipids, important key regulators of Hedgehog signaling, are involved in triggering fibrotic chronic kidney disease. The present study encompasses the assessment of renal morphofunctional modifications and alteration of lipid metabolism influencing the changes in gene expression of hedgehog signaling pathway genes. Fifteen male <i>Rattus norvegicus</i> of 200 ± 25 grams weight were  ...[more]

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