Hempseed extract protected rat kidneys from high-cholesterol damage better than statins | Research

The takeaway

In rats with high-fat diet-induced high cholesterol, hempseed lipid extract improved kidney health markers and reduced inflammation more safely than the statin simvastatin.

Nutritional researchers, nephrologists, and people interested in hemp-based dietary supplements.

Hempseed extract was safer than simvastatin for kidney and liver markers

What the researchers found

Hempseed lipid extract (HEMP) improved lipid profiles and morphological signs of high cholesterol, and was safer than simvastatin for liver and kidney function markers. HEMP positively modulated oxidative stress markers, restored renal architecture, and activated anti-inflammatory resolution pathways (Cox-1/2, PGDS, PGES). HEMP also modulated lipid metabolism mediators (APO-B/E).

Why it matters

Statins, while effective for cholesterol, can cause kidney problems in some patients. If hempseed extracts can manage cholesterol-related kidney damage without statin side effects, it could offer a complementary or alternative approach for certain patients.

The numbers in context

Rat model with high-fat diet. HEMP improved lipid profiles and was safer than simvastatin for hepatic and renal function markers. HEMP modulated Cox-1/2, PGDS, PGES inflammatory pathways and APO-B/E lipid metabolism mediators.

How the study worked

Rat study using high-fat diet to induce hypercholesterolemia. Compared hempseed lipid extract to simvastatin and controls. Assessed lipid profiles, renal function markers, kidney histopathology, oxidative stress markers, and inflammatory pathway expression.

What this study cannot tell us

Rat model may not translate to humans. Hempseed lipid extract composition can vary. No dose-response analysis. Short-term study. Cannot compare to the extensive human evidence base for statins.

How to read the evidence

Single animal study. Interesting preliminary finding but far from clinical applicability.

When this study was published

2021 preclinical rat study.

The bigger picture

Hempseed (from Cannabis sativa) is nutritionally rich in omega fatty acids and proteins. This study adds kidney-protective effects to its known nutritional benefits, though the leap from rat studies to clinical recommendations requires substantial additional research.

Questions still open

Would hempseed extracts show similar kidney-protective effects in humans? What specific hempseed compounds drive the anti-inflammatory effects? Could hempseed supplements complement rather than replace statins?

Common questions

Can hempseed replace statins?

This rat study showed promising results, but it cannot support replacing statins in humans. Statins have decades of clinical evidence, while hempseed kidney-protective effects are only demonstrated in animals.

Is this about marijuana or hemp?

This study used hempseed from Cannabis sativa, which is the same plant species as marijuana but the seeds do not contain significant levels of THC. The focus was on the nutritional lipid content of the seeds.

Read the original research

Hempseed (Cannabis sativa) offers effective alternative over statins in ameliorating hypercholesterolemia associated nephropathy.

Clinical biochemistry, 93, 104-111

View on PubMed ↗Publisher’s paper ↗

Citation

Kaur, Simarpreet; Garg, Ayushi; Kaushal, Naveen. (2021). Hempseed (Cannabis sativa) offers effective alternative over statins in ameliorating hypercholesterolemia associated nephropathy.. Clinical biochemistry, 93, 104-111. https://doi.org/10.1016/j.clinbiochem.2021.04.008