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Ghalichi F, Saghafi-Asl M, Kafil B, Faghfouri AH, Jourshari MR, Naserkiadeh AA, Ostadrahimi A. Insulin Receptor Substrates Regulation and Clinical Responses Following Vanadium-Enriched Yeast Supplementation in Obese Type 2 Diabetic Patients: a Randomized, Double-Blind, Placebo-Controlled Clinical Trial. Biol Trace Elem Res 2023; 201:5169-5182. [PMID: 36826713 DOI: 10.1007/s12011-023-03604-4] [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: 02/01/2023] [Accepted: 02/15/2023] [Indexed: 02/25/2023]
Abstract
Increasing evidence suggests that organic vanadium compounds are bioavailable and safe therapeutic agents with insulin-mimetic and insulin-enhancing features. The objective of the current study was to examine the effect of vanadium-enriched yeast (VEY) supplementation on the gene expression level of insulin receptor substrates and clinical manifestations of obese type 2 diabetic mellitus (T2DM) patients. In this randomized, double-blind, placebo-controlled clinical trial, 44 obese T2DM patients were randomly allocated into either VEY (0.9 mg/day vanadium pentoxide) or placebo group for 12 weeks. The mRNA expression level of protein tyrosine phosphatase 1B (PTP1B), phosphatase and tensin homolog (PTEN), mitogen-activated protein kinase (MAPK), ribosomal protein S6 kinase (S6K), and nuclear factor kappa-light-chain-enhancer of activated B cells (NFƘB) genes in the peripheral blood mononuclear cells, serum levels of metabolic parameters, anthropometric indices, as well as the quality of life, and dietary intake were collected at pre- and post-intervention phases. Analysis of covariance was performed to obtain the corresponding effect size. Results showed that VEY administration significantly decreased anthropometric indices and glycemic parameters and increased insulin sensitivity after adjusting for potential covariates (p < 0.05), in comparison to the placebo group. Additionally, VEY supplementation was significantly effective on MAPK, PTP1B, and NFƘB gene expression level, compared to the placebo group. No significant changes were noticed for dietary intake, quality of life, and lipid profile in the VEY group, compared to the placebo group. Overall, VEY supplementation can be considered as a promising safe adjunct therapy for improving anthropometric indices and glycemic parameters in T2DM patients.
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Affiliation(s)
- Faezeh Ghalichi
- Faculty of Nutrition and Food Sciences, Department of Clinical Nutrition, Tabriz University of Medical Sciences, Tabriz, Iran
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Maryam Saghafi-Asl
- Nutrition Research Center, Drug Applied Research Center, Department of Clinical Nutrition, Faculty of Nutrition & Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Behnam Kafil
- Stem Cell and Regenerative Medicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amir Hossein Faghfouri
- Maternal and Childhood Obesity Research Center, Urmia University of Medical Sciences, Urmia, Iran
| | - Mahtab Rajabi Jourshari
- Faculty of Nutrition and Food Sciences, Department of Clinical Nutrition, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amin Akbari Naserkiadeh
- Faculty of Nutrition and Food Sciences, Department of Clinical Nutrition, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Alireza Ostadrahimi
- Faculty of Nutrition and Food Sciences, Department of Clinical Nutrition, Tabriz University of Medical Sciences, Tabriz, Iran.
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Synthetic biology: a new frontier in food production. Trends Biotechnol 2022; 40:781-803. [PMID: 35120749 DOI: 10.1016/j.tibtech.2022.01.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 12/29/2021] [Accepted: 01/04/2022] [Indexed: 02/07/2023]
Abstract
Concerns regarding food security arise from population growth, global warming, and reduction in arable land. With advances in synthetic biology, food production by microbes is considered to be a promising alternative that would allow rapid food production in an environmentally friendly manner. Moreover, synthetic biology can be adopted to the production of healthier or specifically designed food ingredients (e.g., high-value proteins, lipids, and vitamins) and broaden the utilization of feedstocks (e.g., methanol and CO2), thereby offering potential solutions to high-quality food and the greenhouse effect. We first present how synthetic biology can facilitate the microbial production of various food components, and then discuss feedstock availability enabled by synthetic biology. Finally, we illustrate trends and key challenges in synthetic biology-driven food production.
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Wei Y, Wei G, Wang Z, Xie D, Fan X, Jia Z, Zhang J, Zhang X. Preparation and process optimization of microbial organic copper as a feed additive. ARQ BRAS MED VET ZOO 2021. [DOI: 10.1590/1678-4162-12216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
ABSTRACT As an essential trace element for animals, copper significantly contributes to the growth and health of animals. Compared to inorganic trace elements, organic trace elements are better supplements; notably, they are acquired through microbial transformation. Therefore, we screened for copper-enriched microorganisms from high copper content soil to obtain organic copper. Sodium diethyldithio carbamate trihydrate was applied as a chromogenic agent for determining micro amounts of intracellular copper through spectrophotometry. In total, 50 fungi were isolated after the successful application of the screening platform for copper-rich microbes. Following morphological and molecular biology analyses, the N-2 strain, identified as Aspergillus niger sp. demonstrated showed better copper enrichment potential than others. Notably, the strain tolerance to copper was nearly thrice that of Saccharomyces cerevisiae, up to 1600mg/L. The content of the organic bound copper was 22.84mg Cu/g dry cell. Using the Central Composite Design (CCD) response surface method, we optimized the fermentation condition (inoculation amount, 13%; temperature, 28(C; pH, 5.0). Compared to the original strain results under the single factor fermentation condition, we reported an increase by 24.18% under the optimized conditions. Collectively, these findings provide a reference for uncovering new and low-cost organic copper additives.
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Affiliation(s)
- Y.R. Wei
- Lanzhou University of Technology, China
| | - G.X. Wei
- Lanzhou University of Technology, China
| | - Z.Y. Wang
- Animal Disease Prevention and Control Center of Lanzhou City, China
| | - D.D. Xie
- Lanzhou University of Technology, China
| | - X.Y. Fan
- Lanzhou University of Technology, China
| | - Z.P. Jia
- Lanzhou University of Technology, China
| | - J. Zhang
- Northwest Normal University, China
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Fakharzadeh S, Argani H, Torbati PM, Dadashzadeh S, Kalanaky S, Nazaran MH, Basiri A. DIBc nano metal-organic framework improves biochemical and pathological parameters of experimental chronic kidney disease. J Trace Elem Med Biol 2020; 61:126547. [PMID: 32460199 DOI: 10.1016/j.jtemb.2020.126547] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 04/29/2020] [Accepted: 05/04/2020] [Indexed: 02/08/2023]
Abstract
BACKGROUND The growing morbidity and mortality rate of chronic kidney disease (CKD) has forced researchers to find more efficient strategies for controlling this disease. Studies have proven the important role of alteration in iron, zinc and selenium metabolism in CKD pathological process. Nanotechnology, through synthetizing nano metal-organic framework (NMOF) structures, can be employed as a valuable strategy for using these trace elements as the key for modification and improvement of CKD-related pathological events. After proving the anti-diabetic property of DIBc NMOF (which contains selenium and zinc) in the previous study, the impact of this NMOF on some important biochemical and pathological parameters of CKD was evaluated in the current study. METHODS Knowing that diabetic nephropathy (DN) is the leading cause of CKD, male wistar rats were selected and given a high fat diet for 2 weeks and then were injected with streptozotocin (35 mg/kg) to induce DN. Six weeks after streptozotocin injection, DIBc or metformin treatment started and continued for 8 weeks. RESULTS Eight weeks of DIBc treatment decreased plasma fasting blood glucose, blood urea nitrogen, uric acid, malondialdehyde (MDA) and HOMA-IR index compared to DN control and metformin groups. This NMOF significantly reduced urinary albumin excretion rate, MDA and 8-isoprostane, while it increased creatinine clearance in comparison to the above-mentioned groups. Renal histo-pathological images indicated that DIBc ameliorated glomerular basement membrane thickening and wrinkling, mesangial matrix expansion and hypercellularity and presence of intra-cytoplasmic hyaline droplets in proximal cortical tubules of kidney samples. CONCLUSION The results showed the therapeutic effect of DIBc on important biochemical and histo-pathological parameters of CKD, so this NMOF could be regarded as a promising novel anti-CKD agent.
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Affiliation(s)
- Saideh Fakharzadeh
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Research and Development, Sodour Ahrar Shargh Company, Tehran, Iran
| | - Hassan Argani
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Peyman Mohammadi Torbati
- Department of Pathology, Labbafinejad Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Simin Dadashzadeh
- Department of Pharmaceutics and Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Somayeh Kalanaky
- Department of Research and Development, Sodour Ahrar Shargh Company, Tehran, Iran
| | | | - Abbas Basiri
- Urology and Nephrology Research Center, Shahid Labbafinejad Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Sahu C, Dwivedi DK, Jena GB. Zinc and selenium combination treatment protected diabetes-induced testicular and epididymal damage in rat. Hum Exp Toxicol 2020; 39:1235-1256. [DOI: 10.1177/0960327120914963] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Diabetes increases the possibility of germ cell damage, hypogonadism, and male infertility. Diabetic condition negatively impacts zinc (Zn) and selenium (Se) levels in the body. Zn and Se are among the most important trace elements involved in the regulation of redox reaction, antioxidants enzymes activities, and DNA expression in a germ cell. The present study aimed to elucidate the combined effects of Zn and Se treatment on diabetes-induced germ cell damage in male Sprague Dawley rats. Type 1 diabetes was induced by the single intraperitoneal (i.p.) injection of streptozotocin (55 mg/kg). Zn (3 mg/kg, i.p.) and Se (0.5 mg/kg, i.p.) were administered daily for 8 consecutive weeks. All the animals were provided with normal feed and water throughout the study. The effects on germ cell damage were evaluated by body weight, feed-water intake, organ weight, sperm count, motility, sperm head morphology, biochemical analysis, histology, immunohistochemistry, halo assay, germ cell comet assay, testes terminal deoxynucleotidyl transferase deoxyuridine triphosphate nick end-labeling (TUNEL) assay, sperm TUNEL assay, serum protein pattern analysis, and subcellular analysis using transmission electron microscopy. Further, the expressions of nuclear erythroid-derived related factor 2, catalase, glutathione peroxidase 4, and glutathione peroxidase 5 were carried out to ascertain the mechanism of protection. The present results demonstrated that 8 weeks combined treatment of Zn (3 mg/kg, i.p.) and Se (0.5 mg/kg, i.p.) reduced diabetes-induced germ cell damage. This study further highlighted that Zn and Se combination treatment might be a better strategy for the germ cell protection in diabetes and deserve further investigation.
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Affiliation(s)
- C Sahu
- Facility for Risk Assessment and Intervention Studies, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, S.A.S Nagar, Punjab, India
| | - DK Dwivedi
- Facility for Risk Assessment and Intervention Studies, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, S.A.S Nagar, Punjab, India
| | - GB Jena
- Facility for Risk Assessment and Intervention Studies, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, S.A.S Nagar, Punjab, India
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Liu P, Liu J, Wu Y, Xi W, Wei Y, Yuan Z, Zhuo X. Zinc supplementation protects against diabetic endothelial dysfunction via GTP cyclohydrolase 1 restoration. Biochem Biophys Res Commun 2020; 521:1049-1054. [PMID: 31732151 DOI: 10.1016/j.bbrc.2019.11.046] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 11/06/2019] [Indexed: 12/15/2022]
Abstract
This study explored whether zinc supplementation alleviates diabetic endothelial dysfunction and the possible mechanisms underlying. We found that high glucose exposure significantly increased reactive oxygen species (ROS) and decreased guanosine 5'-triphosphate cyclohydrolase 1 (GTPCH1) and tetrahydrobiopterin (BH4) levels in bovine aortic endothelial cells (BAECs) in a time-dependent manner. High glucose increased zinc release from GTPCH1 in a similar trend. Zinc supplementation restored GTPCH1 and BH4 levels and blocked ROS accumulation in both BACEs and wild type GTPCH1 transfected HEK293 cells, but not in the zinc-free C141R mutant of GTPCH1 transfected ones. In vivo experiments showed that exogenous supplementation of zinc to streptozotocin (STZ)-induced diabetic mice partially improved the impaired maximal endothelium-dependent vasorelaxation, reversed the aberrant reduction of GTPCH1 and BH4, and suppressed the elevation of ROS in the aortas. In conclusion, our study demonstrated a novel mechanism that via GTPCH1 restoration zinc supplementation exerts a protective benefit on diabetic endothelial dysfunction.
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Affiliation(s)
- Peining Liu
- Department of Cardiovascular Medicine, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Junhui Liu
- Department of Clinical Laboratory, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Yue Wu
- Department of Cardiovascular Medicine, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China; Key Laboratory of Molecular Cardiology, Shaanxi Province, Xi'an, Shaanxi, China
| | - Wen Xi
- Department of Clinical Laboratory, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Yuanyuan Wei
- Department of Cardiovascular Medicine, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Zuyi Yuan
- Department of Cardiovascular Medicine, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China; Key Laboratory of Molecular Cardiology, Shaanxi Province, Xi'an, Shaanxi, China; Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education, Xi'an, Shaanxi, China.
| | - Xiaozhen Zhuo
- Department of Cardiovascular Medicine, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China; Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education, Xi'an, Shaanxi, China.
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Kalita H, Hazarika A, Devi R. Withdrawal of High-Carbohydrate, High-Fat Diet Alters Status of Trace Elements to Ameliorate Metabolic Syndrome in Rats With Type 2 Diabetes Mellitus. Can J Diabetes 2019; 44:317-326.e1. [PMID: 32165144 DOI: 10.1016/j.jcjd.2019.10.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 09/17/2019] [Accepted: 10/01/2019] [Indexed: 10/25/2022]
Abstract
OBJECTIVES Inadequate nutrient supply and insulin resistance contribute to the pathogenesis of metabolic syndrome (MetS) and increase the risk of developing cardiovascular disease. MetS can be induced by prolonged feeding of a high-carbohydrate, high-fat (HCHF) diet. The present study was designed using Wistar albino rats as an experimental model to investigate the effect of subchronic withdrawal of an HCHF diet during MetS on distribution of copper (Cu), iron (Fe), magnesium (Mg), manganese (Mn), zinc (Zn) and chromium (Cr) in different biological media. METHODS The experimental animals were fed an HCHF diet for up to 16 weeks for induction of MetS. After inducing MetS, some animals were shifted to a basal diet for the next 4 weeks. Distribution of trace elements (TE) in serum, liver and faeces at the different time intervals and their relationship with dietary TE were analyzed. RESULTS On withdrawal of the HCHF diet, concentrations of Zn, Mg, Mn (serum, p<0.05; liver, p<0.001) and Cr were increased, and Cu and Fe were decreased in serum and liver at week 16. Furthermore, levels of Cu and Fe were reduced significantly (p<0.05) in faeces on feeding the HCHF diet and increased on withdrawal of the diet, which also reflects the metabolic fate of TE during MetS. CONCLUSIONS Consumption of an HCHF diet over a long time period leads to alteration of the TE profile in serum, liver and feces during MetS, which is reversed upon dietary intervention. This can be correlated with their concentrations in HCHF and basal diets, and hence can contribute to proper dietary control of this global issue.
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Affiliation(s)
- Himadri Kalita
- Life Sciences Division, Institute of Advanced Study in Science and Technology, Guwahati Assam, India
| | - Ankita Hazarika
- Life Sciences Division, Institute of Advanced Study in Science and Technology, Guwahati Assam, India
| | - Rajlakshmi Devi
- Life Sciences Division, Institute of Advanced Study in Science and Technology, Guwahati Assam, India.
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Feng H, Ha F, Hu G, Wu Y, Yu S, Ji Z, Feng W, Wang T, Jia G. Concentration of chromium in whole blood and erythrocytes showed different relationships with serum apolipoprotein levels in Cr(VI) exposed subjects. J Trace Elem Med Biol 2018; 50:384-392. [PMID: 30262309 DOI: 10.1016/j.jtemb.2018.08.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 08/02/2018] [Accepted: 08/13/2018] [Indexed: 01/14/2023]
Abstract
OBJECTIVE To explore the effects of hexavalent chromium [Cr(VI)] on apolipoprotein(Apo) metabolism. METHODS One hundred and six long-term Cr(VI) exposed subjects and fifty five non-exposed individuals were recruited. The blood metals, glucose and lipid parameters were measured to evaluate the effects of hexavalent chromium on the apolipoproteins. RESULTS The quantity and homeostasis of multi-elements were significantly different between Cr(VI)exposed subjects and the controls(P < 0.05). The levels of serum TG, FPG, LDL-C, Apo AI, AII, CII, CIII, E and Lp(a) also changed significantly (P < 0.05). Concentration of chromium in whole blood and erythrocytes had different relationships with serum apolipoprotein levels in Cr(VI)exposed subjects. CONCLUSIONS Exposure of hexavalent chromium could significantly change the homeostasis of multi-elements as well as the levels of serum apolipoproteins. Cr(III) and Cr(VI)may have different effects on the apolipoproteins.
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Affiliation(s)
- Huimin Feng
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, China
| | - Feizai Ha
- Department of Clinical Laboratory, Third Hospital of Peking University, Beijing, China
| | - Guiping Hu
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, China
| | - Yonghua Wu
- Department of Clinical Laboratory, Third Hospital of Peking University, Beijing, China
| | - Shanfa Yu
- Institute of Occupational Medicine of Henan Province, Zhengzhou, Henan Province, China
| | - Zhang Ji
- Center for Disease Control and Prevention, Jinan City, Shandong Province, China
| | - Weiyue Feng
- Laboratory for Bio-Environmental Health Sciences, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China
| | - Tiancheng Wang
- Department of Clinical Laboratory, Third Hospital of Peking University, Beijing, China; Medical Research Center, Third Hospital of Peking University, Beijing, China.
| | - Guang Jia
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, China.
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Affiliation(s)
- Lina Radzeviciene
- Institute of Endocrinology, Medical Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Rytas Ostrauskas
- Institute of Endocrinology, Medical Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania
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Asemi Z, Aarabi MH, Hajijafari M, Alizadeh SA, Razzaghi R, Mazoochi M, Esmaillzadeh A. Effects of Synbiotic Food Consumption on Serum Minerals, Liver Enzymes, and Blood Pressure in Patients with Type 2 Diabetes: A Double-blind Randomized Cross-over Controlled Clinical Trial. Int J Prev Med 2017; 8:43. [PMID: 28656099 PMCID: PMC5474907 DOI: 10.4103/ijpvm.ijpvm_257_16] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Accepted: 03/15/2017] [Indexed: 12/13/2022] Open
Abstract
Background: This research was to examine the effects of synbiotic intake on minerals, liver enzymes, and blood pressure in patients with type 2 diabetes (T2D). Methods: This randomized, cross-over clinical trial was performed among 62 diabetic patients. Persons were randomly assigned to intake either a synbiotic (n = 62) or a control food (n = 62) for 6 weeks. A 3-week washout period was applied following which persons were crossed over to the alternate intervention arm for an additional 6 weeks. The synbiotic was consisted of Lactobacillus sporogenes (1 × 107 CFU), 0.04 g inulin (HPX) as prebiotic. Persons were asked to consume the synbiotic and control foods 27 g a day. Blood pressure was measured, and blood samples were taken at baseline and after 6-week intervention to assess calcium, magnesium, iron, alkaline phosphatase, aspartate aminotransferase, alanine aminotransferase, and total bilirubin. Results: The consumption of a synbiotic food, compared to the control food, resulted in a significant rise of calcium (0.66 vs. −0.14 mg/dL, P = 0.03) and iron (5.06 vs. −9.98 mg/dL, P = 0.03). The decrease of total bilirubin (0.08 vs. −0.04 mg/dL; P = 0.009) was also seen in the synbiotic group compared with the control group. Conclusions: Overall, synbiotic in T2D patients had beneficial effects on calcium, iron, and total bilirubin concentrations.
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Affiliation(s)
- Zatollah Asemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
| | - Mohammad Hossein Aarabi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
| | - Mohammad Hajijafari
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
| | | | - Reza Razzaghi
- Department of Infectious Disease, School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
| | - Majid Mazoochi
- Department of Cardiology, School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
| | - Ahmad Esmaillzadeh
- Obesity and Eating Habits Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran, Iran.,Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran.,Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
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Improvement of zinc bioaccumulation and biomass yield in the mycelia and fruiting bodies of Pleurotus florida cultured on liquid media. Appl Biochem Biotechnol 2015; 175:3387-96. [PMID: 25686560 DOI: 10.1007/s12010-015-1510-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Accepted: 01/21/2015] [Indexed: 10/24/2022]
Abstract
The effect of different concentrations of zinc on the bioaccumulation of zinc and biomass yield in both mycelium and fruiting body of Pleurotus florida cultivated in liquid medium was studied. The results showed that the optimum yield of mycelia (11.33 ± 0.44 g/L) and fruiting bodies (7.70 ± 0.19 g/L) dry biomass was obtained in a liquid medium containing 100 mg/L of zinc. At a zinc concentration of 200 mg/L, the highest concentration of zinc in the mycelia and fruiting bodies reached 1.869 ± 0.115 and 0.151 ± 0.008 mg/g dry weight, respectively. The addition of zinc to the culture media significantly reduced zinc bioaccumulation factor in mycelia (from 24.64 ± 0.52 to 3.35 ± 0.24) and fruiting bodies (from 36.71 ± 0.30 to 0.49 ± 0.02) dry weight. Our findings indicated that the ability of zinc bioaccumulation in the mycelia is much higher than in the fruiting bodies. The fundamental information obtained in this study will be useful for the improvement of zinc bioaccumulation and biomass yield in mycelia and fruiting bodies of P. florida cultivated in liquid media to obtain maximum zinc-enriched biomass.
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Asemi Z, Bahmani S, Shakeri H, Jamal A, Faraji AM. Effect of multispecies probiotic supplements on serum minerals, liver enzymes and blood pressure in patients with type 2 diabetes. Int J Diabetes Dev Ctries 2014. [DOI: 10.1007/s13410-013-0187-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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Dietary zinc supplementation to the donor improves insulin secretion after islet transplantation in chemically induced diabetic rats. Pancreas 2014; 43:236-9. [PMID: 24518501 DOI: 10.1097/mpa.0000000000000093] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
OBJECTIVES Zinc (Zn) is related to insulin synthesis, storage, and secretion. This study demonstrates the effects of Zn supplementation in donor rats on the outcomes of islet transplantation. METHODS Donor rats received 3 different regimens of dietary Zn supplementation for 2 weeks before undergoing pancreas donation: a standard diet containing Zn at 50 ppm (control), 1 ppm (low-Zn group) or 1000 ppm (high-Zn group), respectively. Diabetic recipient rats underwent islet transplantation, and the blood glucose levels and insulin secretion were monitored for 7 days after transplantation. RESULTS The serum and pancreatic Zn levels at the time of donation were significantly lower in the low-Zn group (48.8 ± 25.5 µg/dL and 11.3 ± 1.9 µg/g) and higher in the high-Zn group (147.3 ± 17.6 µg/dL and 18.7 ± 2.2 µg/g) when compared with those observed in the controls (118.7 ± 7.9 µg/dL and 14.6 ± 2.0 µg/g) (P < 0.05). The blood glucose levels became re-elevated 2 days after transplantation in rats receiving islet grafts from the controls and the low-Zn groups. In contrast, in the rats that received islets from the high-Zn groups, these were maintained within a reference range (P < 0.01). CONCLUSIONS These data indicate that a Zn-rich diet for donor rats improves the function of islet grafts in chemically induced diabetic rats.
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Sundaram B, Singhal K, Sandhir R. Anti-atherogenic effect of chromium picolinate in streptozotocin-induced experimental diabetes. J Diabetes 2013; 5:43-50. [PMID: 22650796 DOI: 10.1111/j.1753-0407.2012.00211.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Several studies have implicated changes in the levels of trace elements in diabetes. Chromium is one such element that seems to potentiate insulin action, thereby regulating carbohydrate and lipid metabolism. The aim of the present study was to evaluate the effect of chromium supplementation as chromium picolinate on the lipid profile of streptozotocin (STZ)-induced diabetic rats. METHODS Rats were rendered diabetic by a single injection of STZ (50 mg/kg, i.p.). Chromium picolinate (1 mg/kg per day, p.o.) was administered to rats for a period of 4 weeks. At the end of the treatment period, plasma total lipids, triglycerides, total cholesterol and lipoprotein levels were determined, as was hepatic glucose-6-phosphate dehydrogenase activity. RESULTS Total plasma lipids increased significantly in diabetic rats and this increase was ameliorated by chromium treatment for 4 weeks. Elevated total lipids in diabetic rats were due to increased plasma triglyceride and cholesterol levels. Chromium supplementation lowered plasma triglyceride and cholesterol levels to near normal. Chromium treatment also normalized low-density lipoprotein-cholesterol (LDL-C) and very low-density lipoprotein-cholesterol levels and improved the total cholesterol:high-density lipoprotein-cholesterol (HDL-C) and HDL-C:LDL-C ratios, suggesting an anti-atherogenic effect. In addition to improving the plasma lipid profile, chromium supplementation normalized liver glucose-6-phosphate dehydrogenase activity in diabetic rats. CONCLUSIONS These results provide evidence that chromium picolinate effectively attenuates the dyslipidemia associated with diabetes and thus can be used as an adjuvant therapy in the treatment of diabetes and its associated complications.
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Scientific Opinion on ChromoPrecise® cellular bound chromium yeast added for nutritional purposes as a source of chromium in food supplements and the bioavailability of chromium from this source. EFSA J 2012. [DOI: 10.2903/j.efsa.2012.2951] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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