{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T20:47:58Z","timestamp":1777668478018,"version":"3.51.4"},"reference-count":40,"publisher":"SAGE Publications","issue":"4","license":[{"start":{"date-parts":[[2020,10,8]],"date-time":"2020-10-08T00:00:00Z","timestamp":1602115200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Hum Exp Toxicol"],"published-print":{"date-parts":[[2021,4]]},"abstract":"<jats:p>Despite wide application of sodium nitrite (SN) as food additive, it exhibits considerable side effects on various body organs at high dose or chronic exposure. The aim of this study was to test whether Glycyrrhizic acid (GA) could ameliorate SN-induced toxicity in lung and submandibular salivary gland (SMG). A sample size of 30 adult male albino rats was randomly allocated into 3 groups. Group 1 served as control group. Rats were treated orally with 80 mg\/kg of SN in group 2 or SN preceded by (15 mg\/kg) GA in group 3. Lung &amp; SMG tissues were used for oxidative stress assessment, examination of histopathological changes, fibrosis (MTC, TGF-\u03b2 and \u03b1-SMA) and inflammation (TNF-\u03b1, IL-1\u03b2 and CD-68). Concurrent administration of GA ameliorated pulmonary and salivary SN-induced toxicity via restoring the antioxidant defense mechanisms with reduction of MDA levels. GA reduced the key regulators of fibrosis TGF-\u03b2 and \u03b1-SMA and collagen deposition. In addition to reduction of inflammatory cytokine (TNF-\u03b1, IL-1\u03b2) and macrophages recruitments, GA amended both pulmonary and salivary morphological changes. The present study proposed GA as a promising natural herb with antioxidant, anti-inflammatory and antifibrotic effects against pulmonary and salivary SN-induced toxicity.<\/jats:p>","DOI":"10.1177\/0960327120964555","type":"journal-article","created":{"date-parts":[[2020,10,8]],"date-time":"2020-10-08T06:57:00Z","timestamp":1602140220000},"page":"707-721","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":19,"title":["Glycyrrhizic acid ameliorates sodium nitrite-induced lung and salivary gland toxicity: Impact on oxidative stress, inflammation and fibrosis"],"prefix":"10.1177","volume":"40","author":[{"given":"Amira M","family":"Elsherbini","sequence":"first","affiliation":[{"name":"Oral Biology, Faculty of Dentistry, Mansoura University, Mansoura, Egypt"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nadia M","family":"Maysarah","sequence":"additional","affiliation":[{"name":"Department of 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