Effect on bone anabolic markers of daily cheese intake with and without vitamin K 2 : a randomised clinical trial.

Autor: Lundberg HE; Skjetten Medical Center, Skjetten, Norway., Glasø M; Stallbakken Medical Center, Rælingen, Norway., Chhura R; Sundet Medical Center, Eidsvoll, Norway., Shukla AA; Skjetten Medical Center, Skjetten, Norway., Austlid T; Stallbakken Medical Center, Rælingen, Norway., Sarwar Z; Skjetten Medical Center, Skjetten, Norway., Hovland K; Stallbakken Medical Center, Rælingen, Norway., Iqbal S; Stallbakken Medical Center, Rælingen, Norway., Fagertun HE; Meddoc Research, Skjetten, Norway., Holo H; Norwegian University of Life Sciences, As, Norway., Larsen SE; Clinical Department, Meddoc Research, Lillestrøm, Skjetten, Norway.; Veterinary Medicine, Norwegian University of Life Sciences, As, Oslo, Norway.
Jazyk: angličtina
Zdroj: BMJ nutrition, prevention & health [BMJ Nutr Prev Health] 2022 Aug 02; Vol. 5 (2), pp. 182-190. Date of Electronic Publication: 2022 Aug 02 (Print Publication: 2022).
DOI: 10.1136/bmjnph-2022-000424
Abstrakt: Background: Daily intake of 57 g Jarlsberg cheese has been shown to increase the total serum osteocalcin (tOC). Is this a general cheese effect or specific for Jarlsberg containing vitamin K 2 and 1,4-dihydroxy-2naphtoic acid (DHNA)?
Methods: 66 healthy female volunteers (HV) were recruited. By skewed randomisation (3:2), 41 HV were allocated to daily intake of 57 g Jarlsberg (J-group) and 25-50 g Camembert (C-group) in 6 weeks. After 6 weeks the C-group was switched to Jarlsberg. The study duration was 12 weeks with clinical investigations every 6 weeks. The main variables were procollagen type 1 N-terminal propeptide (PINP), tOC, carboxylated osteocalcin (cOC) and the osteocalcin ratio (R O ) defined as the ratio between cOC and undercarboxylated osteocalcin (ucOC). Serum cross-linked C-telopeptide type I collagen (CTX), vitamin K 2 , lipids and clinical chemistry were used as secondary variables.
Results: PINP, tOC, cOC, R O and vitamin K 2 increased significantly (p<0.01) after 6 weeks in the J-group. PINP remained unchanged in the C-group. The other variables decreased slightly in the C-group but increased significantly (p≤0.05) after switching to Jarlsberg. No CTX-changes detected in neither of the groups.Serum lipids increased slightly in both groups. Switching to Jarlsberg, total cholesterol and low-density lipoprotein-cholesterol were significantly reduced (p≤0.05). Glycated haemoglobin (HbA1c), Ca ++ and Mg ++ were significantly reduced in the J-group, but unchanged in the C-group. Switching to Jarlsberg, HbA1c and Ca ++ decreased significantly.
Conclusion: The effect of daily Jarlsberg intake on increased s-osteocalcin level is not a general cheese effect. Jarlsberg contain vitamin K 2 and DHNA which increases PINP, tOC, cOC and R O and decreases Ca ++ , Mg ++ and HbA1c. These effects reflect increased bone anabolism and a possible reduced risk of adverse metabolic outcomes.
Trial Registration Number: NCT04189796.
Competing Interests: Competing interests: None declared.
(© Author(s) (or their employer(s)) 2022. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
Databáze: MEDLINE
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