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de Castro Trigueira P, Coutinho-Wolino KS, Brito ML, de Oliveira Leal V, de França Cardozo LFM, Fouque D, Mafra D, Barcza Stockler-Pinto M. Effects of dietary compounds on nuclear factor erythroid 2-related factor 2 (Nrf2) modulation in chronic kidney disease: a systematic review of clinical trials. Crit Rev Food Sci Nutr 2024:1-20. [PMID: 39086235 DOI: 10.1080/10408398.2024.2384658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2024]
Abstract
Nuclear factor-erythroid 2-related factor 2 (Nrf2) is an important transcription factor that activates antioxidant genes and increases detoxifying enzymes. Studies have shown that dietary compounds can activate the Nrf2 expression and improve the antioxidant response in patients with exacerbated oxidative stress, such as chronic kidney disease (CKD). We aimed to evaluate the efficacy of nutritional interventions on Nrf2 expression and phase II antioxidant enzymes in clinical trials in CKD. We searched PubMed, Lilacs, Embase, Scopus, and Cochrane Library databases of published clinical trials and the Cochrane tool was used for the quality assessment of the studies included. We reported this review according to the PRISMA and it was registered in PROSPERO (42023389619). Thirty-nine studies were included in this review; nine evaluated the Nrf2 expression and three showed an increase in its expression. Twenty-three studies found an increase in the antioxidant enzyme levels, including superoxide dismutase, catalase, and glutathione peroxidase. Moreover, a high risk of bias was found in most of the studies and high heterogeneity in the designs, type, and duration of supplementation administered. These results suggest that dietary supplementations have a promising effect on the antioxidant enzyme response, however, it is recommended that further studies should be carried out.
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Affiliation(s)
| | - Karen Salve Coutinho-Wolino
- Post-Graduate Program in Cardiovascular Sciences, Fluminense Federal University (UFF), Niterói, Rio de Janeiro, Brazil
| | - Michele Lima Brito
- Post-Graduate Program in Pathology, Fluminense Federal University (UFF), Niterói, Rio de Janeiro, Brazil
| | - Viviane de Oliveira Leal
- Pedro Ernesto University Hospital (HUPE), University of the State of Rio de Janeiro (UERJ), Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ludmila Ferreira Medeiros de França Cardozo
- Post-Graduate Program in Cardiovascular Sciences, Fluminense Federal University (UFF), Niterói, Rio de Janeiro, Brazil
- Post-Graduate Program in Nutrition Sciences, Fluminense Federal University (UFF), Niterói, Rio de Janeiro, Brazil
| | - Denis Fouque
- Department of Nephrology, Centre Hopitalier Lyon Sud, INSERM 1060, CENS, Université Lyon, Lyon, France
| | - Denise Mafra
- Post-Graduate Program in Nutrition Sciences, Fluminense Federal University (UFF), Niterói, Rio de Janeiro, Brazil
- Graduate Program in Biological Sciences-Physiology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Rio de Janeiro, Brazil
| | - Milena Barcza Stockler-Pinto
- Post-Graduate Program in Pathology, Fluminense Federal University (UFF), Niterói, Rio de Janeiro, Brazil
- Post-Graduate Program in Cardiovascular Sciences, Fluminense Federal University (UFF), Niterói, Rio de Janeiro, Brazil
- Post-Graduate Program in Nutrition Sciences, Fluminense Federal University (UFF), Niterói, Rio de Janeiro, Brazil
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Sun X, Xu S, Liu T, Wu J, Yang J, Gao XJ. Zinc supplementation alleviates oxidative stress to inhibit chronic gastritis via the ROS/NF-κB pathway in a mouse model. Food Funct 2024; 15:7136-7147. [PMID: 38887927 DOI: 10.1039/d4fo01142b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/20/2024]
Abstract
Zinc (Zn) is an important trace element; it is involved in the regulation and maintenance of many physiological functions in organisms and has anti-inflammatory and antioxidant properties. Chronic gastritis is closely associated with damage to the gastric mucosa, which is detrimental to the health of humans and animals. There are few studies on the effects of zinc on, for example, gastric mucosal damage, oxidative stress, inflammation and cell death in mice. Therefore, we established in vivo and in vitro models of inflammatory injury and investigated the effects of zinc supplementation in C57BL/6 mice and Ges-1 cells and examined the expression of factors associated with oxidative stress, inflammation and cell death. In this study, the results of in vivo and in vitro experiments showed that reactive oxygen species (ROS) levels increased after sodium salicylate exposure. Malondialdehyde levels increased, the activity of the antioxidant enzymes catalase and superoxide dismutase decreased, and the activity of glutathione decreased. The NF-κB signaling pathway was activated, the levels of proinflammatory factors (TNF-α, IL-1β, and IL-6) increased, and the expression of cell death-related factors (Bax, Bcl-2, Caspase3, Caspase7, Caspase9, RIP1, RIP3, and MLKL) increased. Zinc supplementation attenuated the level of oxidative stress and reduced the level of inflammation and cell death. Our study indicated that sodium salicylate induced the production of large amounts of reactive oxygen species and activated the NF-κB pathway, leading to inflammatory damage and cell death in the mouse stomach. Zinc supplementation modulated the ROS/NF-κB pathway, reduced the level of oxidative stress, and attenuated inflammation and cell death in the mouse stomach and Ges-1 cells.
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Affiliation(s)
- Xiaoran Sun
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.
| | - Shuang Xu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.
| | - Tianjing Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.
| | - Jiawei Wu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.
| | - Jie Yang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.
| | - Xue-Jiao Gao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.
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Padhye-Pendse A, Umrani R, Paknikar K, Jadhav S, Rajwade J. Zinc oxide nanoparticles prevent the onset of diabetic nephropathy by inhibiting multiple pathways associated with oxidative stress. Life Sci 2024; 347:122667. [PMID: 38670449 DOI: 10.1016/j.lfs.2024.122667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 04/12/2024] [Accepted: 04/23/2024] [Indexed: 04/28/2024]
Abstract
BACKGROUND Zinc deficiency is strongly correlated with prolonged diabetes mellitus and diabetic nephropathy (DN). Previously, glucose-lowering, insulinomimetic, and β-cell proliferative activities of zinc oxide nanoparticles (ZON) have been reported. Considering these pleiotropic effects, we hypothesized that ZON modulates multiple cellular pathways associated with necroptosis, inflammation, and renal fibrosis, which are involved in progressive loss of renal function. AIM This study evaluated the effect of ZON on renal function, leading to the alleviation of DN in streptozotocin (STZ)-induced type 1 diabetic Wistar rats and proposed a probable mechanism for its activity. METHODS Wistar rats (n = 6/group) were used as healthy controls, diabetic controls, diabetic rats treated with ZON (1, 3, and 10 mg/kg), and insulin controls. Urine and serum biochemical parameters, glomerular filtration rate (GFR), and renal histology were also evaluated. Cultured E11 podocytes were evaluated in vitro for markers of oxidative stress, proteins associated with the loss of renal function, and genes associated with renal damage. KEY FINDINGS STZ-treated rats receiving oral doses of ZON showed enhanced renal function, with no histological alterations in the kidney tissue. ZON inhibited the TGF-β/Samd3 pathway in renal fibrosis; blocked Ripk1/Ripk3/Mlkl mediated necroptosis and protected against hyperglycemia-induced pyroptosis. In E11 podocytes, ZON reduced oxidative stress under high glucose conditions and retained podocyte-specific proteins. SIGNIFICANCE A probable mechanism by which ZON prevents DN has been proposed, suggesting its use as a complementary therapeutic agent for the treatment of diabetic complications. To the best of our knowledge, this is the first study to demonstrate the in vitro effects of ZON in cultured podocytes.
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Affiliation(s)
- Aishwarya Padhye-Pendse
- Agharkar Research Institute, Pune, Maharashtra, India; Savitribai Phule Pune University, Pune, Maharashtra, India
| | - Rinku Umrani
- L. M. College of Pharmacy, Ahmedabad, Gujarat, India
| | | | - Sachin Jadhav
- Agharkar Research Institute, Pune, Maharashtra, India
| | - Jyutika Rajwade
- Agharkar Research Institute, Pune, Maharashtra, India; Savitribai Phule Pune University, Pune, Maharashtra, India.
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4
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Xiang M, Pan Z, Hong S, Cao G, Feng B. Association of dietary zinc consumption with periodontitis in diabetes mellitus patients: A cross-sectional study of national health and nutrition examination surveys database (2009-2014). J Dent Sci 2024; 19:952-960. [PMID: 38618104 PMCID: PMC11010600 DOI: 10.1016/j.jds.2023.07.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 07/18/2023] [Indexed: 04/16/2024] Open
Abstract
Background/purpose Periodontitis is an independent risk factor for diabetes mellitus (DM), and DM patients had an increased risk in susceptibility to periodontitis. And serum zinc (Zn) levels were low in patients with periodontitis combined with DM. Herein, this study aimed to explore the association between dietary Zn intake and the risk of periodontitis in DM patients, in order to provide some scientific references for the prevention and treatment for periodontitis clinically. Materials and methods Demographic and clinical data of DM patients were extracted from the National Health and Nutrition Examination Surveys (NHANES) database in 2009-2014 in this cross-sectional study. Weighted univariate logistic regression and backward regression analyses were used for covariates screening. Weighted univariate and multivariate logistic regression analyses were used to explore the association between Zn and periodontitis with odds ratios (ORs) and 95% confidence intervals (CIs). Subgroup analyses of age and gender were also performed. Results Of the eligible participants, 1281 had moderate or severe periodontitis. After adjusting for the covariates, we found that comparing to DM patients who had not reach the recommended Zn intake level, those who reached had low odds for periodontitis [OR = 0.76, 95% CI: (0.58-0.99)]. In patients who aged ≥65 years old [OR = 0.59, 95% CI: (0.36-0.97)] and were female [OR = 0.71, 95% CI: (0.51-0.99)], reaching the recommended level of Zn intake was related to low odds of periodontitis. Conclusion Sufficient dietary Zn intake antagonized the risk of periodontitis, which may provide some references for diet management in DM patients to reduce the risk of periodontitis.
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Affiliation(s)
- Mingdi Xiang
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, Zhejiang, PR China
| | - Zhiwen Pan
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, Zhejiang, PR China
| | - Siqian Hong
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, Zhejiang, PR China
| | - Guifen Cao
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, Zhejiang, PR China
| | - Bin Feng
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, Zhejiang, PR China
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Olivares-Ferretti P, Chavez V, Maguregui E, Jiménez S, Colom O, Parodi J. Exploring the metabolic and antioxidant potential of solergy: Implications for enhanced animal production. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2024; 41:e00821. [PMID: 38173966 PMCID: PMC10761344 DOI: 10.1016/j.btre.2023.e00821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 11/19/2023] [Accepted: 11/26/2023] [Indexed: 01/05/2024]
Abstract
Cell models are indispensable tools in biotechnology when investigating the functional properties of organic compounds. The emergence of various additives designed to enhance animal production has introduced the need for in-depth evaluations, which are often hindered by the complexities of in vivo testing. In this study, we harnessed cell-based models to scrutinize the impact of Solergy as a regulator of cellular metabolism with a particular focus on its modulation of glycogen and antioxidant effects. Our experiment was designed to include assessments of the influence of Solergy on the viability of both terrestrial and aquatic vertebrate cell models, which revealed the benign nature of Solergy and its lack of adverse effects. Furthermore, we examined the capacity of Solergy to modulate intracellular ATP concentrations and enhance glycogen accumulation. Notably, the antioxidant potential of Solergy and its ability to mitigate cellular aging were evaluated within the same cellular frameworks. The outcomes of our investigation suggest that Solergy is a potent metabolic regulator that elevates cellular activity while exerting an antioxidant effect. Importantly, our study demonstrates that Solergy does not induce changes in membrane oxidation. These findings indicate the potential of using Solergy to regulate glycogen synthesis, intracellular ATP concentrations, and oxidative stress in production animals. The multifaceted effects of this additive, which acts as both a metabolism enhancer and an antioxidant, open doors to the creation of custom diets tailored to meet specific production needs while maintaining stable production parameters.
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Affiliation(s)
| | - Viviana Chavez
- Laboratorio de Investigación Biosocial, Tonalli ltda, Temuco, Chile
| | | | | | | | - Jorge Parodi
- Laboratorio de Investigación Biosocial, Tonalli ltda, Temuco, Chile
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Aimaretti E, Porchietto E, Mantegazza G, Gargari G, Collotta D, Einaudi G, Ferreira Alves G, Marzani E, Algeri A, Dal Bello F, Aragno M, Cifani C, Guglielmetti S, Mastrocola R, Collino M. Anti-Glycation Properties of Zinc-Enriched Arthrospira platensis (Spirulina) Contribute to Prevention of Metaflammation in a Diet-Induced Obese Mouse Model. Nutrients 2024; 16:552. [PMID: 38398877 PMCID: PMC10892558 DOI: 10.3390/nu16040552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 02/03/2024] [Accepted: 02/13/2024] [Indexed: 02/25/2024] Open
Abstract
Advanced glycation end products (AGEs) exert a key pathogenic role in the development of obesity and insulin resistance. Thanks to its abundance in bioactive compounds, the microalga Arthrospira platensis (spirulina, SP) is proposed as a nutritional supplement. Here, we investigated the potential anti-glycating properties of SP enriched with zinc (Zn-SP) and the following impact on diet-induced metabolic derangements. Thirty male C57Bl6 mice were fed a standard diet (SD) or a high-fat high-sugar diet (HFHS) for 12 weeks, and a subgroup of HFHS mice received 350 mg/kg Zn-SP three times a week. A HFHS diet induced obesity and glucose intolerance and increased plasma levels of pro-inflammatory cytokines and transaminases. Zn-SP administration restored glucose homeostasis and reduced hepatic dysfunction and systemic inflammation. In the liver of HFHS mice, a robust accumulation of AGEs was detected, paralleled by increased expression of the main AGE receptor (RAGE) and depletion of glyoxalase-1, whereas Zn-SP administration efficiently prevented these alterations reducing local pro-inflammatory responses. 16S rRNA gene profiling of feces and ileum content revealed altered bacterial community structure in HFHS mice compared to both SD and HFHS + Zn-SP groups. Overall, our study demonstrates relevant anti-glycation properties of Zn-SP which contribute to preventing AGE production and/or stimulate AGE detoxification, leading to the improvement of diet-related dysbiosis and metabolic derangements.
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Affiliation(s)
- Eleonora Aimaretti
- Department of Clinical and Biological Sciences, University of Turin, 10125 Turin, Italy; (E.A.); (M.A.); (R.M.)
| | - Elisa Porchietto
- Pharmacology Unit, School of Pharmacy, University of Camerino, 62032 Camerino, Italy; (E.P.); (G.E.); (G.F.A.); (C.C.)
| | - Giacomo Mantegazza
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, 20133 Milan, Italy; (G.M.); (G.G.)
| | - Giorgio Gargari
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, 20133 Milan, Italy; (G.M.); (G.G.)
| | - Debora Collotta
- Department of Neurosciences “Rita Levi Montalcini”, University of Turin, 10125 Turin, Italy; (D.C.); (E.M.)
| | - Giacomo Einaudi
- Pharmacology Unit, School of Pharmacy, University of Camerino, 62032 Camerino, Italy; (E.P.); (G.E.); (G.F.A.); (C.C.)
| | - Gustavo Ferreira Alves
- Pharmacology Unit, School of Pharmacy, University of Camerino, 62032 Camerino, Italy; (E.P.); (G.E.); (G.F.A.); (C.C.)
| | - Enrica Marzani
- Department of Neurosciences “Rita Levi Montalcini”, University of Turin, 10125 Turin, Italy; (D.C.); (E.M.)
| | - Alessandro Algeri
- Italian Union of Biological Spirulin (Unione Spirulina Biologica Italiana, USBI), Curtatone (Mantova), 46010 Mantova, Italy;
| | - Federica Dal Bello
- Department of Molecular Biotechnology and Health Sciences, University of Turin, 10126 Turin, Italy;
| | - Manuela Aragno
- Department of Clinical and Biological Sciences, University of Turin, 10125 Turin, Italy; (E.A.); (M.A.); (R.M.)
| | - Carlo Cifani
- Pharmacology Unit, School of Pharmacy, University of Camerino, 62032 Camerino, Italy; (E.P.); (G.E.); (G.F.A.); (C.C.)
| | - Simone Guglielmetti
- Department of Biotechnology and Biosciences (BtBs), University of Milano-Bicocca, 20126 Milan, Italy
| | - Raffaella Mastrocola
- Department of Clinical and Biological Sciences, University of Turin, 10125 Turin, Italy; (E.A.); (M.A.); (R.M.)
| | - Massimo Collino
- Department of Neurosciences “Rita Levi Montalcini”, University of Turin, 10125 Turin, Italy; (D.C.); (E.M.)
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Kim MJ, Woo HW, Shin MH, Koh SB, Kim HC, Kim YM, Kim MK. Habitual intake of iron, copper, and zinc and the risk of type 2 diabetes in a prospective cohort: The CAVAS (Cardiovascular Disease Association Study). Nutr Metab Cardiovasc Dis 2024; 34:167-176. [PMID: 38000990 DOI: 10.1016/j.numecd.2023.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 10/03/2023] [Accepted: 10/03/2023] [Indexed: 11/26/2023]
Abstract
BACKGROUND AND AIMS Unlike iron, evidence of the association between dietary copper and zinc intake and type 2 diabetes (T2D) risk is limited. This study aimed to examine the prospective associations of dietary intake of iron (total, plant-based, and animal-based), copper, and zinc with T2D risk among adults aged ≥40 years. METHODS AND RESULTS For 16,666 participants, dietary intakes (baseline, cumulative average, and most recent) of iron, copper, and zinc were calculated from repeated food frequency questionnaires; a modified Poisson regression model with a robust error estimator was conducted. In men, positive associations between T2D and baseline dietary intake of Cu and Zn, cumulative average dietary intake of Fe (total and animal-based), Cu and Zn, and most recent dietary intake of Fe (total, plant-based, and animal-based), Cu, and Zn [most recent diet: for total Fe, IRR(95%CI) = 1.93 (1.41-2.64); for plant-based Fe, 1.56 (1.15-2.11); for animal-based Fe, 1.44 (1.09-1.90); for Cu, 3.17 (2.33-4.30); for Zn, 2.18 (1.64-2.89)] were observed, where as in women, there were positive associations of only cumulative average dietary Zn intake and most recent dietary intake of plant-based Fe, Cu, and Zn [most recent diet: for plant-based Fe, 1.30 (1.01-1.68); for Cu, 1.62 (1.27-2.08); for Zn, 2.07 (1.61-2.66)]. CONCLUSION Dietary intakes of iron (total, plant-based, and animal-based), copper, and zinc may be positively associated with T2D risk. These positive associations are predominantly observed in most recent diet and appear to be stronger compared to baseline and cumulative average diet.
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Affiliation(s)
- Min-Ji Kim
- Department of Epidemiology and Health Statistics, Graduate School of Public Health, Hanyang University, Seoul, South Korea; Institute for Health and Society, Hanyang University, Seoul, South Korea
| | - Hye Won Woo
- Institute for Health and Society, Hanyang University, Seoul, South Korea; Department of Preventive Medicine, Hanyang University, College of Medicine, Seoul, South Korea
| | - Min-Ho Shin
- Department of Preventive Medicine, Chonnam National University, Medical School, Gwangju, South Korea
| | - Sang Baek Koh
- Department of Preventive Medicine and Institute of Occupational Medicine, Yonsei Wonju College of Medicine, Wonju, South Korea
| | - Hyeon Chang Kim
- Department of Preventive Medicine and Public Health, Yonsei University, College of Medicine, Seoul, South Korea
| | - Yu-Mi Kim
- Department of Epidemiology and Health Statistics, Graduate School of Public Health, Hanyang University, Seoul, South Korea; Institute for Health and Society, Hanyang University, Seoul, South Korea; Department of Preventive Medicine, Hanyang University, College of Medicine, Seoul, South Korea
| | - Mi Kyung Kim
- Department of Epidemiology and Health Statistics, Graduate School of Public Health, Hanyang University, Seoul, South Korea; Institute for Health and Society, Hanyang University, Seoul, South Korea; Department of Preventive Medicine, Hanyang University, College of Medicine, Seoul, South Korea.
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Safarzad M, Jazi MS, Kiaei M, Asadi J. Lower serum zinc level is associated with higher fasting insulin in type 2 diabetes mellitus (T2DM) and relates with disturbed glucagon suppression response in male patients. Prim Care Diabetes 2023; 17:493-498. [PMID: 37391316 DOI: 10.1016/j.pcd.2023.05.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 05/29/2023] [Accepted: 05/30/2023] [Indexed: 07/02/2023]
Abstract
AIMS Zinc ion can play critical role in glycemic control in diabetes mellitus (DM), contributing to both insulin synthesis and secretion. In this study, we aimed to investigate the level of zinc in diabetic patients and its association with glycemic parameters, insulin, and glucagon level. METHODS 112 individuals (59 cases of type 2DM and 53 non-diabetic controls) were included in this study. Biochemical parameters (FBG, 2hpp, HbA1C), and zinc level in the serum were measured using colorimetric assays. Insulin and glucagon were measured by ELISA method. HOMA-IR, HOMA-B, reciprocal HOMA-B, and Quicki indices were calculated using appropriate formula. For further analysis, patients were divided into two groups: high (>135.5 μg/dl) and low (<135.5 μg/dl) zinc. Glucagon suppression was considered yes if 2hpp glucagon < fasting glucagon. RESULTS Our results showed that serum Zn level in type 2 DM patients was lower than control (P value=0.02). Patients with lower Zn had higher fasting insulin (P value=0.006) and higher β-cell activity index (HOMA-B, p value=0.02), however fasting glucagon and parameters of hyperglycemia (FBG, 2hpp, Hba1C) were not different. Moreover, insulin sensitivity and resistance indices (Quicki, HOMA-IR,1/HOMA-IR) showed non-significantly improved status in high Zn group. We found non-significant association between glucagon suppression and Zn level in both genders (N = 39, p value = 0.07), however, it was significant in males (N = 14, p value = 0.02). CONCLUSION Altogether, our results indicated reduced serum Zn in type 2DM can exacerbate hyperinsulinemia and glucagon suppression (only significant in the male), highlighting its importance in type 2DM control.
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Affiliation(s)
- Mahdieh Safarzad
- Metabolic Disorders Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Marie Saghaeian Jazi
- Metabolic Disorders Research Center, Golestan University of Medical Sciences, Gorgan, Iran; Stem Cell Research Center, Golestan University of Medical Sciences, Gorgan, Iran.
| | - Mohammadreza Kiaei
- Laboratory Sciences Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Jahanbakhsh Asadi
- Metabolic Disorders Research Center, Golestan University of Medical Sciences, Gorgan, Iran
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Zhao XL, Lin GY, Liu T. Anti-diabetic effect of Ornithogalum caudatum Jacq. polysaccharides via the PI3K/Akt/GSK-3β signaling pathway and regulation of gut microbiota. Heliyon 2023; 9:e20808. [PMID: 37860571 PMCID: PMC10582383 DOI: 10.1016/j.heliyon.2023.e20808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 09/12/2023] [Accepted: 10/06/2023] [Indexed: 10/21/2023] Open
Abstract
This study evaluated the anti-diabetic effect of polysaccharides isolated from Ornithogalum caudatum and their underlying mechanisms. To achieve this, a type 2 diabetes mellitus mouse model was established using a combination of a high-fat diet and low-dose streptozotocin injection. The mice were treated with Ornithogalumcaudatum polysaccharides (OCPs) for 4 weeks. OCPs treatment significantly decreased body weight loss, fasting blood glucose levels, and plasma insulin levels in diabetic mice. Additionally, compared with the untreated group, OCPs treatment significantly decreased total cholesterol, triacylglycerol, and low-density lipoprotein-cholesterol levels, but increased those of high-density lipoprotein-cholesterol in diabetic mice. Moreover, antioxidant enzyme activity and histopathology results revealed that OCPs effectively alleviated oxidative stress and streptozotocin-induced lesions by increasing antioxidant enzyme activity. Results from mechanistic studies showed that OCPs treatment significantly increased the expression of p-PI3K, p-Akt, and p-GSK-3β in the liver. Moreover, OCPs optimized the gut microbiota composition of diabetic mice by significantly decreasing the Firmicutes/Bacteroidetes ratio and increasing the levels of beneficial bacteria (Muribaculaceae_norank, Prevotellaceae_UCG-001 and Alloprevotella). Overall, these findings suggest that OCPs exert anti-diabetic effects by triggering the PI3K/Akt/GSK-3β signaling pathway and regulating the gut microbiota.
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Affiliation(s)
- Xue-liang Zhao
- Key Laboratory for Metabolic Regulation and Activity Research of Medicinal Plants, Baicheng Medical College, Baicheng, Jilin 137000, China
| | - Guang-yu Lin
- Jilin animal husbandry information center, Changchun, Jilin 130000, China
| | - Tong Liu
- Key Laboratory for Metabolic Regulation and Activity Research of Medicinal Plants, Baicheng Medical College, Baicheng, Jilin 137000, China
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Anton IC, Mititelu-Tartau L, Popa EG, Poroch M, Poroch V, Pelin AM, Pavel LL, Drochioi IC, Botnariu GE. Zinc Chloride Enhances the Antioxidant Status, Improving the Functional and Structural Organic Disturbances in Streptozotocin-Induced Diabetes in Rats. MEDICINA (KAUNAS, LITHUANIA) 2022; 58:1620. [PMID: 36363577 PMCID: PMC9695737 DOI: 10.3390/medicina58111620] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/03/2022] [Accepted: 11/06/2022] [Indexed: 12/01/2023]
Abstract
Background and Objectives: Diabetes mellitus (DM) is a complex disease affecting the whole metabolic balance of the body and resulting in multiple organ complications: cardiovascular, neuronal, renal, etc. Our study focuses on investigating the effect of zinc chloride (Zn) on certain blood parameters suggestive for assessing the metabolic disturbances, the liver and kidney function, the oxidative stress and the immune defense capacity in experimental-induced DM with streptozotocin (STZ) and cholesterol in rats. Materials and Methods: The animals were assigned to three groups, as follows: Group 1 (Control): buffer citrate solution 0.1 mL/100 g body; Group 2 (STZ): 20 mg/kg body STZ and fat diet (10 g cholesterol/100 g diet); Group 3 (STZ+Zn): 20 mg/kg body STZ + 5 mg/kg body Zn chloride and the same fat diet. DM was induced by administering STZ in a single take daily, for three consecutive days, Zn and citrate buffer were administered orally for a month. The protocol was approved by the Ethics Committee of the University 'Grigore T Popa' Iasi, in agreement with the International Regulations about the handling of laboratory animals. Results: The use of STZ in rats fed with cholesterol was correlated with important weight gain, hyperglycemia, the intensification of the transaminases activity and the increase in serum alkaline phosphatase, cholesterol, triglyceride, urea, creatinine and in malondialdehyde. Conclusions: The treatment with Zn resulted in weight loss and a decrease in blood sugar in diabetic rats. Supplementation with Zn notably reduced oxidative stress, preserved the pancreatic architecture and restored the liver and kidney function and structure in STZ-induced DM in rats.
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Affiliation(s)
- Irina Claudia Anton
- Department of Pharmacology, Clinical Pharmacology and Algesiology, Faculty of Medicine, ‘Grigore T. Popa’ University of Medicine and Pharmacy, Universitatii St. 16, 700115 Iasi, Romania
| | - Liliana Mititelu-Tartau
- Department of Pharmacology, Clinical Pharmacology and Algesiology, Faculty of Medicine, ‘Grigore T. Popa’ University of Medicine and Pharmacy, Universitatii St. 16, 700115 Iasi, Romania
| | - Eliza Gratiela Popa
- Department of Pharmaceutical Technology, Faculty of Pharmacy, ‘Grigore T. Popa’ University of Medicine and Pharmacy, Universitatii St. 16, 700115 Iasi, Romania
| | - Mihaela Poroch
- Department of Family Medicine, Preventive Medicine and Interdisciplinarity, Faculty of Medicine, ‘Grigore T. Popa’ University of Medicine and Pharmacy, Universitatii St. 16, 700115 Iasi, Romania
| | - Vladimir Poroch
- 2nd Department of Internal Medicine, Faculty of Medicine, ‘Grigore T. Popa’ University of Medicine and Pharmacy, Universitatii St. 16, 700115 Iasi, Romania
| | - Ana-Maria Pelin
- Department of Pharmaceutical Sciences, Faculty of Medicine and Pharmacy, ‘Dunărea de Jos’ University, 800010 Galați, Romania
| | - Liliana Lacramioara Pavel
- Department of Morphological and Functional Sciences, Faculty of Medicine and Pharmacy, ‘Dunărea de Jos’ University, 800010 Galați, Romania
| | - Ilie Cristian Drochioi
- Surgical Department, Faculty of Dental Medicine, University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Gina Eosefina Botnariu
- Department of Diabetes, Nutrition and Metabolic Disease, ‘Grigore T. Popa’ University of Medicine and Pharmacy, Universitatii St. 16, 700115 Iasi, Romania
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