{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,2]],"date-time":"2026-10-02T03:53:30Z","timestamp":1790913210771,"version":"4.1.0"},"reference-count":49,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2024,6,14]],"date-time":"2024-06-14T00:00:00Z","timestamp":1718323200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"\u201cRegional Innovation Strategy (RIS)\u201d through the National Research Foundation of Korea (NRF) funded by the Ministry of Education","award":["2021RIS-001"],"award-info":[{"award-number":["2021RIS-001"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nutrients"],"abstract":"<jats:p>Osteoarthritis (OA) is a chronic degenerative joint disease that causes chronic pain, swelling, stiffness, disability, and significantly reduces the quality of life. Typically, OA is treated using painkillers and non-steroidal anti-inflammatory drugs (NSAIDs). While current pharmacologic treatments are common, their potential side effects have prompted exploration into functional dietary supplements. Recently, eggshell membrane (ESM) has emerged as a potential functional ingredient for joint and connective tissue disorders due to its clinical efficacy in relieving joint pain and stiffness. Despite promising clinical evidence, the effects of ESM on OA progression and its mechanism of action remain poorly understood. This study evaluated the efficacy of Ovomet\u00ae, a powdered natural ESM, against joint pain and disease progression in a monosodium iodoacetate (MIA)-induced rodent model of OA in mice and rats. The results demonstrate that ESM significantly alleviates joint pain and attenuates articular cartilage destruction in both mice and rats that received oral supplementation for 5 days prior to OA induction and for 28 days thereafter. Interestingly, ESM significantly inhibited mRNA expression levels of pro-inflammatory cytokines including tumor necrosis factor alpha (TNF-\u03b1), interleukin-1\u03b2 (IL-1\u03b2), and interleukin-6 (IL-6), as well as inflammatory mediators, cyclooxygenase-2 (COX-2), and inducible nitric oxide synthase in the knee joint cartilage at the early stage of OA, within 7 days after OA induction. However, this effect was not observed in the late stage at 28 days after OA induction. ESM further attenuates the induction of protein expression for cartilage-degrading enzymes like matrix metalloproteinase (MMPs) 3 and 13, and a disintegrin and metalloproteinase with thrombospondin motifs 5 (ADAMTS-5), in the late-stage. In addition, MIA-induced reduction of the protein expression levels of cartilage components, cartilage oligomeric matrix protein (COMP), aggrecan (ACAN) and collagen type II \u03b1-1 chain (COL2\u03b11), and cartilage extracellular matrix (ECM) synthesis promoting transcriptional factor SRY-Box 9 (SOX-9) were increased via ESM treatment in the cartilage tissue. Our findings suggest that Ovomet\u00ae, a natural ESM powder, is a promising dietary functional ingredient that can alleviate pain, inflammatory response, and cartilage degradation associated with the progression of OA.<\/jats:p>","DOI":"10.3390\/nu16121885","type":"journal-article","created":{"date-parts":[[2024,6,14]],"date-time":"2024-06-14T10:42:34Z","timestamp":1718361754000},"page":"1885","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Time-Dependent Effect of Eggshell Membrane on Monosodium-Iodoacetate-Induced Osteoarthritis: Early-Stage Inflammation Control and Late-Stage Cartilage Protection"],"prefix":"10.3390","volume":"16","author":[{"given":"Min","family":"Yu","sequence":"first","affiliation":[{"name":"College of Pharmacy, Chungbuk National University, 194-21 Osongsaengmyong 1-ro, Osong-eup, Heungduk-gu, Cheongju 28160, Chungbuk, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9414-0327","authenticated-orcid":false,"given":"Cheoljin","family":"Park","sequence":"additional","affiliation":[{"name":"College of Pharmacy, Chungbuk National University, 194-21 Osongsaengmyong 1-ro, Osong-eup, Heungduk-gu, Cheongju 28160, Chungbuk, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Young Bae","family":"Son","sequence":"additional","affiliation":[{"name":"College of Pharmacy, Chungbuk National University, 194-21 Osongsaengmyong 1-ro, Osong-eup, Heungduk-gu, Cheongju 28160, Chungbuk, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"So Eun","family":"Jo","sequence":"additional","affiliation":[{"name":"College of Pharmacy, Chungbuk National University, 194-21 Osongsaengmyong 1-ro, Osong-eup, Heungduk-gu, Cheongju 28160, Chungbuk, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Seong Hee","family":"Jeon","sequence":"additional","affiliation":[{"name":"College of Pharmacy, Chungbuk National University, 194-21 Osongsaengmyong 1-ro, Osong-eup, Heungduk-gu, Cheongju 28160, Chungbuk, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ye Jin","family":"Kim","sequence":"additional","affiliation":[{"name":"College of Pharmacy, Chungbuk National University, 194-21 Osongsaengmyong 1-ro, Osong-eup, Heungduk-gu, Cheongju 28160, Chungbuk, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6656-6523","authenticated-orcid":false,"given":"Sang Bae","family":"Han","sequence":"additional","affiliation":[{"name":"College of Pharmacy, Chungbuk National University, 194-21 Osongsaengmyong 1-ro, Osong-eup, Heungduk-gu, Cheongju 28160, Chungbuk, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6534-9575","authenticated-orcid":false,"given":"Jin Tae","family":"Hong","sequence":"additional","affiliation":[{"name":"College of Pharmacy, Chungbuk National University, 194-21 Osongsaengmyong 1-ro, Osong-eup, Heungduk-gu, Cheongju 28160, Chungbuk, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7520-6909","authenticated-orcid":false,"given":"Dong Ju","family":"Son","sequence":"additional","affiliation":[{"name":"College of Pharmacy, Chungbuk National University, 194-21 Osongsaengmyong 1-ro, Osong-eup, Heungduk-gu, Cheongju 28160, Chungbuk, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,6,14]]},"reference":[{"key":"ref_1","first-page":"244","article-title":"A tale of three tissues","volume":"66","author":"Samuels","year":"2008","journal-title":"Bull. 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