PMID- 35938503 OWN - NLM STAT- MEDLINE DCOM- 20220809 LR - 20220811 IS - 1744-5116 (Electronic) IS - 1388-0209 (Print) IS - 1388-0209 (Linking) VI - 60 IP - 1 DP - 2022 Dec TI - Evaluation of the toxicology, anti-lipase, and antioxidant effects of Callistemon citrinus in rats fed with a high fat-fructose diet. PG - 1384-1393 LID - 10.1080/13880209.2022.2099907 [doi] AB - CONTEXT: Callistemon citrinus Skeels (Myrtaceae) exhibits many biological activities. OBJECTIVE: This study analyzes for the first time, the toxicity, obesogenic, and antioxidant effects of C. citrinus in rats fed with a high fat-fructose diet (HFFD). MATERIALS AND METHODS: Four studies using male Wistar rats were conducted: (a) 7 groups (n = 3): control (corn oil) and ethanol extract of C. citrinus leaf (single oral dose at 100-4000 mg/kg) for acute toxicity; (b) 2 groups (n = 8): control (corn oil) and C. citrinus (1000 mg/kg/day) for 28 days for subacute toxicity; (c) 3 groups (n = 4) with single oral dose of lipid emulsion: control (lipid emulsion), C. citrinus and orlistat (250 and 50 mg/kg, respectively) for lipid absorption; (d) 4 groups (n = 6): control (normal diet) and 3 groups fed with HFFD: HFFD only, C. citrinus and simvastatin (oral dose 250 and 3 mg/kg, respectively) for 13 weeks. Antioxidant enzymes and biomarkers were evaluated and inhibition of pancreatic lipase was determined in vitro. RESULTS: Toxicological studies of C. citrinus showed no differences in biochemical parameters and lethal dose (LD(50)) was higher than 4000 mg/kg. C. citrinus inhibited pancreatic lipase activity, with IC(50) of 392.00 microg/mL, and decreased lipid absorption by 70%. Additionally, it reduced the body weight 22%, restored the activities of antioxidant enzymes, and reduced the biomarkers of oxidative stress. CONCLUSIONS: Callistemon citrinus showed an effect against oxidative stress by reducing biomarkers and induced antioxidant system, without toxic effects. FAU - Ortega-Perez, Luis Gerardo AU - Ortega-Perez LG AD - Facultad de Biologia, Universidad Michoacana de San Nicolas de Hidalgo, Morelia, Michoacan, Mexico. FAU - Pinon-Simental, Jonathan Saul AU - Pinon-Simental JS AD - Facultad de Biologia, Universidad Michoacana de San Nicolas de Hidalgo, Morelia, Michoacan, Mexico. FAU - Magana-Rodriguez, Oliver Rafid AU - Magana-Rodriguez OR AD - Facultad de Biologia, Universidad Michoacana de San Nicolas de Hidalgo, Morelia, Michoacan, Mexico. FAU - Lopez-Mejia, Alejandro AU - Lopez-Mejia A AD - Facultad de Biologia, Universidad Michoacana de San Nicolas de Hidalgo, Morelia, Michoacan, Mexico. FAU - Ayala-Ruiz, Luis Alberto AU - Ayala-Ruiz LA AD - Facultad de Biologia, Universidad Michoacana de San Nicolas de Hidalgo, Morelia, Michoacan, Mexico. FAU - Garcia-Calderon, Aram Josue AU - Garcia-Calderon AJ AD - Facultad de Biologia, Universidad Michoacana de San Nicolas de Hidalgo, Morelia, Michoacan, Mexico. FAU - Godinez-Hernandez, Daniel AU - Godinez-Hernandez D AD - Instituto de Investigaciones Quimico Biologicas, Universidad Michoacana de San Nicolas de Hidalgo, Morelia, Michoacan, Mexico. FAU - Rios-Chavez, Patricia AU - Rios-Chavez P AUID- ORCID: 0000-0003-4285-8307 AD - Facultad de Biologia, Universidad Michoacana de San Nicolas de Hidalgo, Morelia, Michoacan, Mexico. LA - eng PT - Journal Article PL - England TA - Pharm Biol JT - Pharmaceutical biology JID - 9812552 RN - 0 (Antioxidants) RN - 0 (Biomarkers) RN - 0 (Emulsions) RN - 30237-26-4 (Fructose) RN - 8001-30-7 (Corn Oil) RN - EC 3.1.1.3 (Lipase) SB - IM MH - Animals MH - *Antioxidants/pharmacology MH - Biomarkers MH - Corn Oil MH - Diet, High-Fat/adverse effects MH - Emulsions MH - Fructose/toxicity MH - Lipase MH - Male MH - *Myrtaceae MH - Rats MH - Rats, Wistar PMC - PMC9361760 OTO - NOTNLM OT - Alternative medicine OT - kidney OT - liver OT - overweight OT - oxidative stress OT - stomach COIS- No potential conflict of interest was reported by the author(s). EDAT- 2022/08/09 06:00 MHDA- 2022/08/10 06:00 PMCR- 2022/08/07 CRDT- 2022/08/08 05:43 PHST- 2022/08/08 05:43 [entrez] PHST- 2022/08/09 06:00 [pubmed] PHST- 2022/08/10 06:00 [medline] PHST- 2022/08/07 00:00 [pmc-release] AID - 2099907 [pii] AID - 10.1080/13880209.2022.2099907 [doi] PST - ppublish SO - Pharm Biol. 2022 Dec;60(1):1384-1393. doi: 10.1080/13880209.2022.2099907.