1
|
Dhar H, Verma S, Dogra S, Katoch S, Vij R, Singh G, Sharma M. Functional attributes of bioactive peptides of bovine milk origin and application of in silico approaches for peptide prediction and functional annotations. Crit Rev Food Sci Nutr 2024; 64:9432-9454. [PMID: 37218679 DOI: 10.1080/10408398.2023.2212803] [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] [Indexed: 05/24/2023]
Abstract
Bovine milk peptides are the protein fragments with diverse bioactive properties having antioxidant, anticarcinogenic, other therapeutic and nutraceutical potentials. These peptides are formed in milk by enzymatic hydrolysis, gastrointestinal digestion and fermentation processes. They have significant health impact with high potency and low toxicity making them a suitable natural alternative for preventing and managing diseases. Antibiotic resistance has increased the quest for better peptide candidates with antimicrobial effects. This article presents a comprehensive review on well documented antimicrobial, immunological, opioid, and anti-hypertensive activities of bovine milk peptides. It also covers the usage of computational biology tools and databases for prediction and analysis of the food-derived bioactive peptides. In silico analysis of amino acid sequences of Bos taurus milk proteins have been predicted to generate peptides with dipeptidyl peptidase IV inhibitory and ACE inhibitory properties, making them favorable candidates for developing blood sugar lowering drugs and anti-hypertensives. In addition to the prediction of new bioactive peptides, application of bioinformatics tools to predict novel functions of already known peptides is also discussed. Overall, this review focuses on the reported as well as predicted biologically active peptide of casein and whey proteins of bovine milk that can be utilized to develop therapeutic agents.
Collapse
Affiliation(s)
- Hena Dhar
- Department of Microbiology, School of Biosciences, RIMT University, Mandi Gobindgarh, India
| | - Subhash Verma
- Department of Veterinary Microbiology, Dr. G.C. Negi College of Veterinary & Animal Sciences, CSK Himachal Pradesh Agricultural University, Palampur, India
| | - Sarita Dogra
- PGIMR, Postgraduate Institute of Medical Education & Research, Chandigarh, India
| | - Shailja Katoch
- Department of Veterinary Microbiology, Sardar Vallabh Bhai Patel University of Agriculture and Technology, Meerut, India
| | - Rishika Vij
- Department of Veterinary Physiology & Biochemistry, Dr. G.C. Negi College of Veterinary & Animal Sciences, CSK Himachal Pradesh Agricultural University, Palampur, India
| | - Geetanjali Singh
- Department of Veterinary Physiology & Biochemistry, Dr. G.C. Negi College of Veterinary & Animal Sciences, CSK Himachal Pradesh Agricultural University, Palampur, India
| | - Mandeep Sharma
- Department of Veterinary Microbiology, Dr. G.C. Negi College of Veterinary & Animal Sciences, CSK Himachal Pradesh Agricultural University, Palampur, India
| |
Collapse
|
2
|
Dubey SK, Thakur A, Jena MK, Kumar S, Sodhi M, Mukesh M, Kaushik JK, Mohanty AK. Effect of bovine beta-casomorphins on rat pancreatic beta cells (RIN-5F) under glucotoxic stress. Biochem Biophys Res Commun 2024; 739:150578. [PMID: 39178795 DOI: 10.1016/j.bbrc.2024.150578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Revised: 07/31/2024] [Accepted: 08/20/2024] [Indexed: 08/26/2024]
Abstract
Beta-casomorphins (BCMs) are the bio-active peptides having opioid properties which are formed by the proteolytic digestion of β-caseins in milk. BCM-7 forms when A1 milk is digested in the small intestine due to a histidine at the 67th position in β-casein, unlike A2 milk, which has proline at this position and produces BCM-9. BCM-7 has further degraded into BCM-5 by the dipeptidyl peptidase-IV (DPP-IV) enzyme in the intestine. The opioid-like activity of BCM-7 is responsible for eliciting signaling pathways which enable a wide range of physiological effects. The aim of our study was to find out the differential role of BCMs (BCM-7, BCM-9 and BCM-5) on pancreatic β-cell proliferation, insulin secretion, and opioid peptide binding receptors from β-cells (RIN-5F cell line) in normal (5.5 mM) and high glucose (27.5 mM) concentrations. Our results showed that BCM-7/9/5 did not affect β-cell viability, proliferation, and insulin secretion at normal glucose level. However, at higher glucose concentration, BCMs significantly protected β-cells from glucotoxicity but did not affect the insulin secretion. Interestingly, in the presence of Mu-opioid peptide receptor antagonist CTOP, BCMs did not protect β-cells from glucotoxicity. The results suggest that BCMs protect β-cells from glucotoxicity via non-opioid mediated pathways because BCMs did not modulate the gene expression of the mu, kappa and delta opioid peptide receptors.
Collapse
Affiliation(s)
- Shivam Kumar Dubey
- Cell, Molecular and Proteomics Lab, Animal Biotechnology Centre, ICAR-National Dairy Research Institute (ICAR-NDRI), Karnal, Haryana, 132001, India.
| | - Abhishek Thakur
- Cell, Molecular and Proteomics Lab, Animal Biotechnology Centre, ICAR-National Dairy Research Institute (ICAR-NDRI), Karnal, Haryana, 132001, India.
| | - Manoj Kumar Jena
- Department of Biotechnology, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab, 144411, India.
| | - Sudarshan Kumar
- Cell, Molecular and Proteomics Lab, Animal Biotechnology Centre, ICAR-National Dairy Research Institute (ICAR-NDRI), Karnal, Haryana, 132001, India.
| | - Monika Sodhi
- Animal Biotechnology Division, ICAR-National Bureau of Animal Genetic Resources (ICAR-NBAGR), Karnal, Haryana, 132001, India.
| | - Manishi Mukesh
- Animal Biotechnology Division, ICAR-National Bureau of Animal Genetic Resources (ICAR-NBAGR), Karnal, Haryana, 132001, India.
| | - Jai Kumar Kaushik
- Cell, Molecular and Proteomics Lab, Animal Biotechnology Centre, ICAR-National Dairy Research Institute (ICAR-NDRI), Karnal, Haryana, 132001, India.
| | - Ashok Kumar Mohanty
- Cell, Molecular and Proteomics Lab, Animal Biotechnology Centre, ICAR-National Dairy Research Institute (ICAR-NDRI), Karnal, Haryana, 132001, India; ICAR-Central Institute for Research on Cattle (ICAR-CIRC), Meerut, Uttar Pradesh, 250001, India.
| |
Collapse
|
3
|
Borş A, Borş SI, Floriștean VC. Health-Related Outcomes and Molecular Methods for the Characterization of A1 and A2 Cow's Milk: Review and Update. Vet Sci 2024; 11:172. [PMID: 38668439 PMCID: PMC11053430 DOI: 10.3390/vetsci11040172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 04/09/2024] [Accepted: 04/10/2024] [Indexed: 04/29/2024] Open
Abstract
A new trend in cow's milk has emerged in the market called type A1 and A2 milk. These products have piqued the interest of both consumers and researchers. Recent studies suggest that A2 milk may have potential health benefits beyond that of A1 milk, which is why researchers are investigating this product further. It is interesting to note that the A1 and A2 milk types have area-specific characteristics compared to breed-specific characteristics. Extensive research has focused on milk derivatives obtained from cow's milk, primarily through in vitro and animal studies. However, few clinical studies have been conducted in humans, and the results have been unsatisfactory. New molecular techniques for identifying A1 and A2 milk may help researchers develop new studies that can clarify certain controversies surrounding A1 milk. It is essential to exercise extreme caution when interpreting the updated literature. It has the potential to spread panic worldwide and have negative economic implications. Therefore, this study aims to investigate the differences between A1 and A2 milk in various research areas and clarify some aspects regarding these two types of milk.
Collapse
Affiliation(s)
- Alina Borş
- Department of Public Health, Faculty of Veterinary Medicine, “Ion Ionescu de la Brad” Iasi University of Life Sciences, 700489 Iaşi, Romania; (A.B.); (V.-C.F.)
| | - Silviu-Ionuț Borş
- Research and Development Station for Cattle Breeding Dancu, 707252 Iaşi, Romania
| | - Viorel-Cezar Floriștean
- Department of Public Health, Faculty of Veterinary Medicine, “Ion Ionescu de la Brad” Iasi University of Life Sciences, 700489 Iaşi, Romania; (A.B.); (V.-C.F.)
| |
Collapse
|
4
|
Huang SM, Lin CH, Chang WF, Shih CC. Antidiabetic and antihyperlipidemic activities of Phyllanthus emblica L. extract in vitro and the regulation of Akt phosphorylation, gluconeogenesis, and peroxisome proliferator-activated receptor α in streptozotocin-induced diabetic mice. Food Nutr Res 2023; 67:9854. [PMID: 37850072 PMCID: PMC10578056 DOI: 10.29219/fnr.v67.9854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 09/05/2023] [Accepted: 09/15/2023] [Indexed: 10/19/2023] Open
Abstract
Background The fruits of Phyllanthus emblica L. are high in nutrients and have excellent health care function and developmental value. There are many management strategies available for diabetes and hyperlipidemia. Nevertheless, there is a lack of an effective and nontoxic drug. Objective The present study was designed to first screen four extracts of P. emblica L. on insulin signaling target gene expression levels, including glucose transporter 4 (GLUT4) and p-Akt/t-Akt. The ethyl acetate extract of P. emblica L. (EPE) exhibited the most efficient activity among the four extracts and was thus chosen to explore the antidiabetic and antihyperlipidemic activities in streptozotocin (STZ)-induced type 1 diabetic mice. Design All mice (in addition to one control (CON) group) were administered STZ injections (intraperitoneal) for 5 consecutive days, and then STZ-induced mice were administered EPE (at 100, 200, or 400 mg/kg body weight), fenofibrate (Feno) (at 250 mg/kg body weight), glibenclamide (Glib) (at 10 mg/kg body weight), or vehicle by oral gavage once daily for 4 weeks. Finally, histological examination, blood biochemical parameters, and target gene mRNA expression levels were measured, and liver tissue was analyzed for the levels of malondialdehyde (MDA), a maker of lipid peroxidation. Results EPE treatment resulted in decreased levels of blood glucose, HbA1C, triglycerides (TGs), and total cholesterol and increased levels of insulin compared with the vehicle-treated STZ group. EPE treatment decreased blood levels of HbA1C and MDA but increased glutathione levels in liver tissue, implying that EPE exerts antioxidant activity and could prevent oxidative stress and diabetes. The EPE-treated STZ mice displayed an improvement in the sizes and numbers of insulin-expressing β cells. EPE treatment increased the membrane expression levels of skeletal muscular GLUT4, and also reduced hepatic mRNA levels of glucose-6-phosphatase (G6Pase) and phosphoenolpyruvate carboxykinase thereby inhibiting hepatic gluconeogenesis. This resulted in a net glucose lowering effect in EPE-treated STZ mice. Furthermore, EPE increased the expression levels of p-AMPK/t-AMPK in both the skeletal muscle and liver tissue compared with vehicle-treated STZ mice. EPE-treated STZ mice showed enhanced expression levels of fatty acid oxidation enzymes, including peroxisome proliferator-activated receptor α (PPARα), but reduced expression levels of lipogenic genes including fatty acid synthase, as well as decreased mRNA levels of sterol regulatory element binding protein 1c (SREBP1c), apolipoprotein-CIII (apo-CIII), and diacylglycerol acyltransferase-2 (DGAT2). This resulted in a reduction in plasma TG levels. EPE-treated STZ mice also showed reduced expression levels of PPAR γ. This resulted in decreased adipogenesis, fatty acid synthesis, and lipid accumulation within liver tissue, and consequently, lower TG levels in liver tissue and blood. Furthermore, EPE treatment not only displayed an increase in the Akt activation in liver tissue, but also in C2C12 myotube in the absence of insulin. These results implied that EPE acts as an activator of AMPK and /or as a regulator of the insulin (Akt) pathway. Conclusions Taken together, EPE treatment exhibited amelioration of the diabetic and hyperlipidemic state in STZ-induced diabetic mice.
Collapse
Affiliation(s)
- Shin-Ming Huang
- Department of Gastroenterology, Jen-Ai Hospital, Dali Branch, Taichung City, Taiwan
| | - Cheng-Hsiu Lin
- Department of Internal Medicine, Fengyuan Hospital, Ministry of Health and Welfare, Taichung City, Taiwan
| | - Wen-Fang Chang
- Department of Cardiology, Jen-Ai Hospital, Taichung City, Taiwan
| | - Chun-Ching Shih
- Department of Nursing, College of Nursing, Central Taiwan University of Science and Technology, Taichung City, Taiwan
| |
Collapse
|
5
|
Gonzales-Malca JA, Tirado-Kulieva VA, Abanto-López MS, Aldana-Juárez WL, Palacios-Zapata CM. Worldwide research on the health effects of bovine milk containing A1 and A2 β-casein: Unraveling the current scenario and future trends through bibliometrics and text mining. Curr Res Food Sci 2023; 7:100602. [PMID: 37790856 PMCID: PMC10542606 DOI: 10.1016/j.crfs.2023.100602] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 09/19/2023] [Accepted: 09/22/2023] [Indexed: 10/05/2023] Open
Abstract
The possible adverse effect of consuming bovine milk with A1 β-casein (but not with A2 β-casein) on health aspects due to the release of β-casomorphin-7 (BCM-7) is currently under debate. The aim of this study was to perform a bibliometric analysis of studies extracted from Scopus to explore the relationship between BCM-7, A1 or A2 bovine milk with different aspects of health. Over time, several research groups were formed that are no longer active and although some authors have returned to the field of study, they have focused their efforts mainly on conducting reviews that show the same imprecise conclusions due to the few original articles. Research is concentrated in Europe and Asia, where New Zealand, China and Germany are the countries with the most publications, records and citations on the subject, respectively. On the other hand, no country in Africa or South America has scientific production, which opens the possibility of building collaborations between countries and exploring areas that lack scientific studies. Based on conflicting information from primarily in vitro and animal studies, and limited clinical trials with poor designs, A1 milk presents pro-inflammatory and oxidative activity, but the evidence is insufficient to associate its consumption with negative health effects. However, A2 milk may be better tolerated by the digestive system of some individuals, suggesting its possible modulating role in the intestinal microbiota. Stronger scientific evidence is needed to reach a consensus on whether the presence of β-casein A1 can significantly negatively affect health. The information shown will allow a better understanding of the subject and consumers will be able to make their own decisions regarding A1 or A2 milk.
Collapse
Affiliation(s)
- Jhony Alberto Gonzales-Malca
- Laboratorio de Tecnología de Alimentos y Procesos, Universidad Nacional de Frontera, Peru
- Laboratorio de Biología Molecular, Universidad Nacional de Frontera, Peru
| | | | | | | | | |
Collapse
|
6
|
Cieślińska A, Fiedorowicz E, Rozmus D, Sienkiewicz-Szłapka E, Jarmołowska B, Kamiński S. Does a Little Difference Make a Big Difference? Bovine β-Casein A1 and A2 Variants and Human Health-An Update. Int J Mol Sci 2022; 23:15637. [PMID: 36555278 PMCID: PMC9779325 DOI: 10.3390/ijms232415637] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 12/01/2022] [Accepted: 12/05/2022] [Indexed: 12/14/2022] Open
Abstract
For over 20 years, bovine beta-casein has been a subject of increasing scientific interest because its genetic A1 variant during gastrointestinal digestion releases opioid-like peptide β-casomorphin-7 (β-CM-7). Since β-CM-7 is involved in the dysregulation of many physiological processes, there is a growing discussion of whether the consumption of the β-casein A1 variant has an influence on human health. In the last decade, the number of papers dealing with this problem has substantially increased. The newest clinical studies on humans showed a negative effect of variant A1 on serum glutathione level, digestive well-being, cognitive performance score in children, and mood score in women. Scientific reports in this field can affect the policies of dairy cattle breeders and the milk industry, leading to the elimination of allele A1 in dairy cattle populations and promoting milk products based on milk from cows with the A2A2 genotype. More scientific proof, especially in well-designed clinical studies, is necessary to determine whether a little difference in the β-casein amino acid sequence negatively affects the health of milk consumers.
Collapse
Affiliation(s)
- Anna Cieślińska
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury, 10-719 Olsztyn, Poland
| | - Ewa Fiedorowicz
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury, 10-719 Olsztyn, Poland
| | - Dominika Rozmus
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury, 10-719 Olsztyn, Poland
| | - Edyta Sienkiewicz-Szłapka
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury, 10-719 Olsztyn, Poland
| | - Beata Jarmołowska
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury, 10-719 Olsztyn, Poland
| | - Stanisław Kamiński
- Department of Animal Genetics, University of Warmia and Mazury, 10-719 Olsztyn, Poland
| |
Collapse
|
7
|
Amalfitano N, Macedo Mota LF, Rosa GJM, Cecchinato A, Bittante G. Role of CSN2, CSN3, and BLG genes and the polygenic background in the cattle milk protein profile. J Dairy Sci 2022; 105:6001-6020. [PMID: 35525618 DOI: 10.3168/jds.2021-21421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 02/28/2022] [Indexed: 11/19/2022]
Abstract
To devise better selection strategies in dairy cattle breeding programs, a deeper knowledge of the role of the major genes encoding for milk protein fractions is required. The aim of the present study was to assess the effect of the CSN2, CSN3, and BLG genotypes on individual protein fractions (αS1-CN, αS2-CN, β-CN, κ-CN, β-LG, α-LA) expressed qualitatively as percentages of total nitrogen content (% N), quantitatively as contents in milk (g/L), and as daily production levels (g/d). Individual milk samples were collected from 1,264 Brown Swiss cows reared in 85 commercial herds in Trento Province (northeast Italy). A total of 989 cows were successfully genotyped using the Illumina Bovine SNP50 v.2 BeadChip (Illumina Inc.), and a genomic relationship matrix was constructed using the 37,519 SNP markers obtained. Milk protein fractions were quantified and the β-CN, κ-CN, and β-LG genetic variants were identified by reversed-phase HPLC (RP-HPLC). All protein fractions were analyzed through a Bayesian multitrait animal model implemented via Gibbs sampling. The effects of days in milk, parity order, and the CSN2, CSN3, and BLG genotypes were assigned flat priors in this model, whereas the effects of herd and animal additive genetic were assigned Gaussian prior distributions, and inverse Wishart distributions were assumed for the respective co-variance matrices. Marginal posterior distributions of the parameters of interest were compared before and after the inclusion of the effects of the 3 major genes in the model. The results showed that a high portion of the genetic variance was controlled by the major genes. This was particularly apparent in the qualitative protein profile, which was found to have a higher heritability than the protein fraction contents in milk and their daily yields. When the genes were included individually in the model, CSN2 was the major gene controlling all the casein fractions except for κ-CN, which was controlled directly by the CSN3 gene. The BLG gene had the most influence on the 2 whey proteins. The genetic correlations showed the major genes had only a small effect on the relationships between the protein fractions, but through comparison of the correlation coefficients of the proteins expressed in different ways they revealed potential mechanisms of regulation and competitive synthesis in the mammary gland. The estimates for the effects of the CSN2 and CSN3 genes on protein profiles showed overexpression of protein synthesis in the presence of the B allele in the genotype. Conversely, the β-LG B variant was associated with a lower concentration of β-LG compared with the β-LG A variant, independently of how the protein fractions were expressed, and it was followed by downregulation (or upregulation in the case of the β-LG B) of all other protein fractions. These results should be borne in mind when seeking to design more efficient selection programs aimed at improving milk quality for the efficiency of dairy industry and the effect of dairy products on human health.
Collapse
Affiliation(s)
- Nicolò Amalfitano
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova (Padua), 35020 Legnaro (PD), Italy.
| | - Lucio Flavio Macedo Mota
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova (Padua), 35020 Legnaro (PD), Italy
| | - Guilherme J M Rosa
- Department of Animal and Dairy Sciences, University of Wisconsin-Madison, Madison 53706
| | - Alessio Cecchinato
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova (Padua), 35020 Legnaro (PD), Italy
| | - Giovanni Bittante
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova (Padua), 35020 Legnaro (PD), Italy
| |
Collapse
|
8
|
Woodford KB. Casomorphins and Gliadorphins Have Diverse Systemic Effects Spanning Gut, Brain and Internal Organs. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18157911. [PMID: 34360205 PMCID: PMC8345738 DOI: 10.3390/ijerph18157911] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 07/14/2021] [Accepted: 07/17/2021] [Indexed: 12/11/2022]
Abstract
Food-derived opioid peptides include digestive products derived from cereal and dairy diets. If these opioid peptides breach the intestinal barrier, typically linked to permeability and constrained biosynthesis of dipeptidyl peptidase-4 (DPP4), they can attach to opioid receptors. The widespread presence of opioid receptors spanning gut, brain, and internal organs is fundamental to the diverse and systemic effects of food-derived opioids, with effects being evidential across many health conditions. However, manifestation delays following low-intensity long-term exposure create major challenges for clinical trials. Accordingly, it has been easiest to demonstrate causal relationships in digestion-based research where some impacts occur rapidly. Within this environment, the role of the microbiome is evidential but challenging to further elucidate, with microbiome effects ranging across gut-condition indicators and modulators, and potentially as systemic causal factors. Elucidation requires a systemic framework that acknowledges that public-health effects of food-derived opioids are complex with varying genetic susceptibility and confounding factors, together with system-wide interactions and feedbacks. The specific role of the microbiome within this puzzle remains a medical frontier. The easiest albeit challenging nutritional strategy to modify risk is reduced intake of foods containing embedded opioids. In future, constituent modification within specific foods to reduce embedded opioids may become feasible.
Collapse
|
9
|
A1- and A2 beta-casein on health-related outcomes: a scoping review of animal studies. Eur J Nutr 2021; 61:1-21. [PMID: 34075432 PMCID: PMC8783860 DOI: 10.1007/s00394-021-02551-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 03/30/2021] [Indexed: 10/26/2022]
Abstract
PURPOSE Food-derived bioactive peptides may influence important physiological functions. An important example is beta-casomorphins, which are opioid peptides derived from A1 beta-casein in bovine milk and have been associated to be risk factors for non-communicable diseases in humans. A1 and A2 beta-casein are different with respect to the release of bioactive peptides, in particular BCM-7. However, evidence from human studies is limited and could be complemented with evidence derived from animal studies. We conducted a scoping review to identify animal studies investigating the effects of A1 beta-casein or BCM-7 compared to A2 beta-casein or any other intervention on health-related outcomes. METHODS We systematically searched for relevant studies in two electronic databases (Medline, Embase; last search performed March 2020). Two reviewers independently undertook study selection and data extraction of included references. Results were summarized tabularly and narratively. RESULTS We included 42 studies investigating various animal models, including rats, mice, rabbits, and dogs. Six studies investigated health-related outcomes of A1- vs. A2 milk, while most studies (n = 36) reported on physiological properties (e.g., analgesic effect) of BCM-7 as an opioid peptide. Included studies were extremely heterogeneous in terms of the study population, type of intervention and dose, and type of outcome measures. CONCLUSIONS Only a few studies comparing the effects of A1- and A2 milk were identified. More studies addressing this research question in animal models are needed to provide essential information to inform research gaps. Results from future studies could eventually complement research for humans, particularly when the body of evidence remains uncertain as is the case in the A1- and A2 milk debate.
Collapse
|
10
|
Keratin Scaffolds Containing Casomorphin Stimulate Macrophage Infiltration and Accelerate Full-Thickness Cutaneous Wound Healing in Diabetic Mice. Molecules 2021; 26:molecules26092554. [PMID: 33925737 PMCID: PMC8125279 DOI: 10.3390/molecules26092554] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/13/2021] [Accepted: 04/21/2021] [Indexed: 12/11/2022] Open
Abstract
Impaired wound healing is a major medical challenge, especially in diabetics. Over the centuries, the main goal of tissue engineering and regenerative medicine has been to invent biomaterials that accelerate the wound healing process. In this context, keratin-derived biomaterial is a promising candidate due to its biocompatibility and biodegradability. In this study, we evaluated an insoluble fraction of keratin containing casomorphin as a wound dressing in a full-thickness surgical skin wound model in mice (n = 20) with iatrogenically induced diabetes. Casomorphin, an opioid peptide with analgesic properties, was incorporated into keratin and shown to be slowly released from the dressing. An in vitro study showed that keratin-casomorphin dressing is biocompatible, non-toxic, and supports cell growth. In vivo experiments demonstrated that keratin-casomorphin dressing significantly (p < 0.05) accelerates the whole process of skin wound healing to the its final stage. Wounds covered with keratin-casomorphin dressing underwent reepithelization faster, ending up with a thicker epidermis than control wounds, as confirmed by histopathological and immunohistochemical examinations. This investigated dressing stimulated macrophages infiltration, which favors tissue remodeling and regeneration, unlike in the control wounds in which neutrophils predominated. Additionally, in dressed wounds, the number of microhemorrhages was significantly decreased (p < 0.05) as compared with control wounds. The dressing was naturally incorporated into regenerating tissue during the wound healing process. Applied keratin dressing favored reconstruction of more regular skin structure and assured better cosmetic outcome in terms of scar formation and appearance. Our results have shown that insoluble keratin wound dressing containing casomorphin supports skin wound healing in diabetic mice.
Collapse
|
11
|
Shivanna SK, Nataraj BH. Revisiting therapeutic and toxicological fingerprints of milk-derived bioactive peptides: An overview. FOOD BIOSCI 2020. [DOI: 10.1016/j.fbio.2020.100771] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|
12
|
Tyagi A, Daliri EBM, Kwami Ofosu F, Yeon SJ, Oh DH. Food-Derived Opioid Peptides in Human Health: A Review. Int J Mol Sci 2020; 21:E8825. [PMID: 33233481 PMCID: PMC7700510 DOI: 10.3390/ijms21228825] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 11/19/2020] [Accepted: 11/19/2020] [Indexed: 12/12/2022] Open
Abstract
World Health Organization data suggest that stress, depression, and anxiety have a noticeable prevalence and are becoming some of the most common causes of disability in the Western world. Stress-related disorders are considered to be a challenge for the healthcare system with their great economic and social impact. The knowledge on these conditions is not very clear among many people, as a high proportion of patients do not respond to the currently available medications for targeting the monoaminergic system. In addition, the use of clinical drugs is also associated with various side effects such as vomiting, dizziness, sedation, nausea, constipation, and many more, which prevents their effective use. Therefore, opioid peptides derived from food sources are becoming one of the safe and natural alternatives because of their production from natural sources such as animals and plant proteins. The requirement for screening and considering dietary proteins as a source of bioactive peptides is highlighted to understand their potential roles in stress-related disorders as a part of a diet or as a drug complementing therapeutic prescription. In this review, we discussed current knowledge on opioid endogenous and exogenous peptides concentrating on their production, purification, and related studies. To fully understand their potential in stress-related conditions, either as a drug or as a therapeutic part of a diet prescription, the need to screen more dietary proteins as a source of novel opioid peptides is emphasized.
Collapse
Affiliation(s)
| | | | | | | | - Deog-Hwan Oh
- Department of Food Science and Biotechnology, College of Agriculture and Life Sciences, Kangwon National University, Chuncheon 200-701, Korea; (A.T.); (E.B.-M.D.); (F.K.O.); (S.-J.Y.)
| |
Collapse
|
13
|
Thiruvengadam M, Venkidasamy B, Thirupathi P, Chung IM, Subramanian U. β-Casomorphin: A complete health perspective. Food Chem 2020; 337:127765. [PMID: 32799161 DOI: 10.1016/j.foodchem.2020.127765] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 07/19/2020] [Accepted: 08/02/2020] [Indexed: 12/20/2022]
Abstract
β-Casomorphin-7 (BCM-7) is a heptapeptide dietary molecule derived from the digestion of the β-casein of dairy and dairy products. In this review, we have covered the extensive details about BCM and its derived peptides out of the gastrointestinal and enzymatic digestion of milk and milk products, its structure and properties, and its immunological aspects related to human health among infants and adults of both genders. We have left judgment about BCM's pros and cons to the reader by describing the details in a cyclopedic perspective. In addition, a section on the possible ways to detect BCMs from their sources using proteomics, genome-based techniques, such as PCR and aptamers, and other analytical techniques equip the reader to get an idea about the details of the diagnostics available and possible applications in future. Overall, this review will provide information to the end-users of milk and milk products to enable them to make their own decisions about BCMs.
Collapse
Affiliation(s)
- Muthu Thiruvengadam
- Department of Crop Science, College of Sanghuh Life Science, Konkuk University, Seoul 05029, Republic of Korea
| | - Baskar Venkidasamy
- Department of Biotechnology, Bharathiar University, Coimbatore 641046, Tamil Nadu, India
| | - Prabhu Thirupathi
- Translational Research Platform for Veterinary Biologicals, Tamil Nadu Veterinary and Animal Sciences University, Madhavaram Milk Colony, Chennai 600051, Tamil Nadu, India
| | - Ill-Min Chung
- Department of Crop Science, College of Sanghuh Life Science, Konkuk University, Seoul 05029, Republic of Korea
| | - Umadevi Subramanian
- Translational Research Platform for Veterinary Biologicals, Tamil Nadu Veterinary and Animal Sciences University, Madhavaram Milk Colony, Chennai 600051, Tamil Nadu, India.
| |
Collapse
|
14
|
Summer A, Di Frangia F, Ajmone Marsan P, De Noni I, Malacarne M. Occurrence, biological properties and potential effects on human health of β-casomorphin 7: Current knowledge and concerns. Crit Rev Food Sci Nutr 2020; 60:3705-3723. [PMID: 32033519 DOI: 10.1080/10408398.2019.1707157] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The genetic variant A1 of bovine β-casein (β-Cn) presents a His residue at a position 67 of the mature protein. This feature makes the Ile66-His67 bond more vulnerable to enzymatic cleavage, determining the release of the peptide β-Cn f(60-66), named β-casomorphin 7 (BCM7). BCM7 is an opioid-agonist for μ receptors, and it has been hypothesized to be involved in the development of different non-transmissible diseases in humans. In the last decade, studies have provided additional results on the potential health impact of β-Cn A1 and BCM7. These studies, here reviewed, highlighted a relation between the consumption of β-Cn A1 (and its derivative BCM7) and the increase of inflammatory response as well as discomfort at the gastrointestinal level. Conversely, the role of BCM7 and the effects of ingestion of β-Cn A1 on the onset or worsening of other non-transmissible diseases as caused or favored by still need proof of evidence. Overall, the reviewed literature demonstrates that the "β-Cn A1/BCM7 issue" remains an intriguing but not exhaustively explained topic in human nutrition. On this basis, policies in favor of breeding for β-Cn variants not releasing BCM7 and consumption of "A1-like" milk appear not yet sound for a healthier and safer nutrition.
Collapse
Affiliation(s)
- Andrea Summer
- Department of Veterinary Sciences, Università di Parma, Parma, Italy
| | | | - Paolo Ajmone Marsan
- Department of Animal Science, Food and Nutrition (DIANA) and Nutrigenomics and Proteomics Research Center (PRONUTRIGEN), Università Cattolica del Sacro Cuore, Piacenza, Italy
| | - Ivano De Noni
- Department of Food, Environmental and Nutritional Sciences (DeFENS), Università degli Studi di Milano, Milan, Italy
| | - Massimo Malacarne
- Department of Veterinary Sciences, Università di Parma, Parma, Italy
| |
Collapse
|
15
|
Lin CH, Hsiao LW, Kuo YH, Shih CC. Antidiabetic and Antihyperlipidemic Effects of Sulphurenic Acid, a Triterpenoid Compound from Antrodia camphorata, in Streptozotocin-Induced Diabetic Mice. Int J Mol Sci 2019; 20:E4897. [PMID: 31581697 PMCID: PMC6801777 DOI: 10.3390/ijms20194897] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 09/25/2019] [Accepted: 09/30/2019] [Indexed: 01/19/2023] Open
Abstract
The present study was designed to evaluate the protective effect of sulphurenic acid (SA), a pure compound from Antrodia camphorata, on diabetes and hyperlipidemia in an animal model study and to clarify the underlying molecular mechanism. Diabetes was induced by daily 55 mg/kg intraperitoneal injections of streptozotocin (STZ) solution over five days. Diabetic mice were randomly divided into six groups and orally gavaged with SA (at three dosages) or glibenclamide (Glib), fenofibrate (Feno) or vehicle for 3 weeks. Our findings showed that STZ-induced diabetic mice had significantly increased fasting blood glucose, glycated hemoglobin (HbA1C), plasma triglyceride (TG), and total cholesterol (TC) levels (p < 0.001, p < 0.001, p < 0.001, and p < 0.05, respectively) but decreased blood insulin, adiponectin, and leptin levels compared to those of the control group (p < 0.001, p < 0.001, and p < 0.001, respectively). Administration of SA to STZ-induced diabetic mice may lower blood glucose but it increased the insulin levels with restoration of the size of the islets of Langerhans cells, implying that SA protected against STZ-induced diabetic states within the pancreas. At the molecular level, SA treatment exerts an increase in skeletal muscle expression levels of membrane glucose transporter 4 (GLUT4) and phospho-Akt to increase the membrane glucose uptake, but the mRNA levels of PEPCK and G6Pase are decreased to inhibit hepatic glucose production, thus leading to its hypoglycemic effect. Moreover, SA may cause hypolipidemic effects not only by enhancing hepatic expression levels of peroxisome proliferator-activated receptor α (PPARα) with increased fatty acid oxidation but also by reducing lipogenic fatty acid synthase (FAS) as well as reducing mRNA levels of sterol regulatory element binding protein (SREBP)1C and SREBP2 to lower blood TG and TC levels. Our findings demonstrated that SA displayed a protective effect against type 1 diabetes and a hyperlipidemic state in STZ-induced diabetic mice.
Collapse
Affiliation(s)
- Cheng-Hsiu Lin
- Department of Internal Medicine, Fengyuan Hospital, Ministry of Health and Welfare, Fengyuan District, Taichung 42055, Taiwan.
| | - Li-Wei Hsiao
- Division of Endocrinology and Metabolism, Chang Bing Show Chwan Memorial Hospital, Changhua 505, Taiwan.
| | - Yueh-Hsiung Kuo
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, China Medical University, Taichung 40402, Taiwan.
| | - Chun-Ching Shih
- Graduate Institute of Biotechnology and Biomedical Engineering, College of Health Science, Central Taiwan University of Science and Technology, No.666 Buzih Road, Beitun District, Taichung 40601, Taiwan.
| |
Collapse
|
16
|
Zhang Z, Zhao H, Ge D, Wang S, Qi B. β-Casomorphin-7 Ameliorates Sepsis-Induced Acute Kidney Injury by Targeting NF-κB Pathway. Med Sci Monit 2019; 25:121-127. [PMID: 30610183 PMCID: PMC6330023 DOI: 10.12659/msm.912730] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Background The aim of this study was to investigate the protective effect of β-casomorphin-7 (β-CM-7) and its possible mechanisms on acute kidney injury (AKI). Material/Methods Rats were randomly divided into a sham group, a cecal ligation and puncture (CLP) group, and a CLP+β-CM-7 group. Kidney index, kidney function, and histopathology changes were assessed. The expression of neutrophil gelatinase-associated lipocalin (NGAL), kidney injury molecule-1 (Kim-1), nuclear factor of kappa light polypeptide gene enhancer in B-cells inhibitor alpha (IκBα), and p-IκBα in kidney tissues were detected by Western blotting. Inflammatory and oxidative stress factors were detected by ELISA kits. Results The results showed that treatment with β-CM-7 reduced the levels of creatinine (Cre), blood urea nitrogen (BUN), NGAL, and Kim-1 induced by CLP, weakening the pathological damage. In the CLP + β-CM-7 group, the tumor necrosis factor-α (TNF-α) level and the DNA-binding activity of NF-κB p65 were significantly reduced and the interleukin-10 (IL-10) level was significantly increased compared with the CLP group. b-CM-7 decreased the expression of p-IκBα/IκBα. In addition, β-CM-7 increased the activity of superoxide dismutase (SOD) and decreased the level of malondialdehyde (MDA) in kidney tissue. Conclusions β-CM-7 attenuated sepsis-induced AKI through reducing inflammation and oxidative stress and by inhibition of nuclear factor (NF)-κB activities. This study provides a new therapeutic agent for attenuating sepsis-induced kidney injury.
Collapse
Affiliation(s)
- ZhiJie Zhang
- Department of Anesthesiology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu, China (mainland)
| | - Huatang Zhao
- Department of Anesthesiology, Taishan Medical University Affiliated Liaocheng Second People's Hospital, Linqing, Shandong, China (mainland)
| | - DongJian Ge
- Department of Anesthesiology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu, China (mainland)
| | - Shanshan Wang
- Department of Anesthesiology, Huaiyin Hospital of Huaian City, Huai'an, Jiangsu, China (mainland)
| | - Bin Qi
- Department of Anesthesiology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu, China (mainland)
| |
Collapse
|
17
|
Lin CH, Shih ZZ, Kuo YH, Huang GJ, Tu PC, Shih CC. Antidiabetic and antihyperlipidemic effects of the flower extract of Eriobotrya japonica in streptozotocin-induced diabetic mice and the potential bioactive constituents in vitro. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.08.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
|
18
|
Zhu L, Li J, Wu D, Li B. The protective effect of beta-casomorphin-7 via promoting Foxo1 activity and nuclear translocation in human lens epithelial cells. Cutan Ocul Toxicol 2018; 37:267-274. [PMID: 29519181 DOI: 10.1080/15569527.2018.1445095] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 02/10/2018] [Accepted: 02/20/2018] [Indexed: 10/17/2022]
Abstract
PURPOSE To investigate the protective effect of beta-casomorphin-7 (β-CM-7) in oxidative stressed human lens epithelial cells (HLECs) and to explore the possible mechanism for oxidative stress in HLECs induced by high glucose. METHODS We used HLECs to determine the effect of different concentrations of β-CM-7 on cell viability by 3-(4, 5-dimethyl-2-thiazolyl)-2, 5-diphenyl-2-H-tetrazolimol/L bromide (MTT) assay. We used flow cytometry to determine the content of reactive oxygen species (ROS) induced by oxidative stress and a bioassay kit to determine the oxidant malondialdehyde (MDA) and antioxidant enzyme superoxide dismutase (SOD) levels. We used Western blotting and an immunofluorescence assay to determine the expression of Forkhead box o1 (Foxo1), SP1, and the related protein glutathione peroxidase (GSH-px) at the molecular biology level as well as their intracellular localization. RESULTS The expression of Foxo1 and SP1 was weakly expressed when the glucose concentration was 40 mM/L, but was highly expressed when cells were pre-treated with an appropriate concentration of β-CM-7. After pre-treatment with β-CM-7, the cells treated with 40 mM/L glucose for 48 h showed Foxo1 was transferred to the nucleus, and the expression of SP1 was increased. The content of ROS and MDA in the HLECs that were pre-treated with β-CM-7 was lower than in those that was not pre-treated (p <0.05). Accordingly, SOD was elevated in the cells pre-treated with β-CM-7. The relative expression of GSH-px increased with increases of Foxo1 and SP1. CONCLUSION β-CM-7 protects HLECs from oxidative damage by upregulating the relative expression of Foxo1 and promoting Foxo1 nuclear translocation.
Collapse
Affiliation(s)
- Lihua Zhu
- a Department of Ophthalmology , Jinzhou Medical University , Jinzhou , People's Republic of China
| | - Jia Li
- b Department of Ophthalmology , The First Affiliated Hospital of Jinzhou Medical University , Jinzhou , People's Republic of China
| | - Dayang Wu
- b Department of Ophthalmology , The First Affiliated Hospital of Jinzhou Medical University , Jinzhou , People's Republic of China
| | - Bing Li
- b Department of Ophthalmology , The First Affiliated Hospital of Jinzhou Medical University , Jinzhou , People's Republic of China
| |
Collapse
|
19
|
Lin CH, Kuo YH, Shih CC. Antidiabetic and hypolipidemic activities of eburicoic acid, a triterpenoid compound from Antrodia camphorata, by regulation of Akt phosphorylation, gluconeogenesis, and PPARα in streptozotocin-induced diabetic mice. RSC Adv 2018; 8:20462-20476. [PMID: 35542324 PMCID: PMC9080793 DOI: 10.1039/c8ra01841c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 05/24/2018] [Indexed: 11/22/2022] Open
Abstract
The study is designed to examine the potential effects and underlying mechanisms of eburicoic acid (TRR), a compound from Antrodia camphorata, in streptozotocin (STZ)-induced diabetic mice. Diabetic mice were randomly divided into six groups and given TRR orally by gavage (at three dosage rates) or fenofibrate (Feno) (250 mg kg−1 body weight) or metformin (Metf) (300 mg kg−1 body weight) or vehicle for 2 weeks. STZ-induced diabetic mice were found to have increased blood glucose, HbA1C, plasma triglyceride (TG) and total cholesterol (TC) levels, but reduced blood insulin, adiponectin, and leptin levels as compared with the CON group. TRR was found to lower blood glucose and HbA1C, but increase insulin levels. Plasma TG and TC levels were significantly lowered in TRR, Feno, or Metf-treated STZ-induced diabetic mice as compared with the vehicle-treated STZ group, indicating that TRR, Feno, and Metf ameliorated hyperlipidemia. The islet cells of STZ-induced diabetic mice exhibited a marked reduction from their classic round-shape as compared to the CON mice. The TRR-treated STZ mice revealed restoration of the size of Langerhans islet cells with β-cell repair as compared with the vehicle-treated STZ mice, implying that TRR ameliorated STZ-induced diabetic states within the pancreas. STZ-induction was found to decrease the expressions of membrane glucose transporter 4 (GLUT4), and phosphorylation of Akt in skeletal muscles, and administration of TRR reversed all the decreases. Moreover, administration of TRR increased blood insulin levels and enhanced hepatic expression levels of phospho-Akt and phospho-FoxO1 but decreased the mRNA levels of glucose-6-phosphatase (G6 Pase) and phosphoenolpyruvate carboxykinase (PEPCK) to suppress hepatic glucose production, thus leading to TRR's antidiabetic activity. Additionally, TRR caused an increase in the expression levels of fatty acid oxidation gene peroxisome proliferator-activated receptor α (PPARα), but a decrease in lipogenic fatty acid synthase (FAS) and PPARγ expressions in the liver. TRR treatment suppressed hepatic mRNA levels of sterol regulatory element binding protein (SREBP) 1c and SREBP2, leading to decreased plasma triglyceride and total cholesterol levels. These findings indicate that TRR may effectively enhance therapeutic potential in the treatment of type 1 diabetes mellitus and/or hyperlipidemia. The study is designed to examine the potential effects and underlying mechanisms of eburicoic acid (TRR), a compound from Antrodia camphorata, in streptozotocin (STZ)-induced diabetic mice.![]()
Collapse
Affiliation(s)
- Cheng-Hsiu Lin
- Department of Internal Medicine
- Fengyuan Hospital
- Ministry of Health and Welfare
- Taichung City 42055
- Taiwan
| | - Yueh-Hsiung Kuo
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources
- China Medical University
- Taichung City 40402
- Taiwan
| | - Chun-Ching Shih
- Graduate Institute of Biotechnology and Biomedical Engineering
- College of Health Science
- Central Taiwan University of Science and Technology
- Taichung City 40601
- Taiwan
| |
Collapse
|
20
|
Xie Z, Zeng X, Li X, Wu B, Shen G, Wu Q, Wu C. Curcumin attenuates oxidative stress in liver in Type 1 diabetic rats. Open Life Sci 2017. [DOI: 10.1515/biol-2017-0053] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractWe investigated the effect of curcumin on liver anti-oxidative stress in the type 1 diabetic rat model induced by streptozotocin (STZ). Experimental diabetic rats were induced by STZ intraperitoneally. All rats were fed for 21 days including three groups of control (NC), diabetic model (DC) and curcumin-treated (Cur, 1.5 g/kg by gavage). The results showed that curcumin-treatment significantly decreased the blood glucose and plasma malondialdehyde levels, but significantly increased the plasma superoxide dismutase, glutathione peroxidase and reduced glutathione levels. Curcumin treatment decreased the activity of aldose reductase, but increased the plasma glucose-6-phosphate dehydrogenase, glucose synthetase and glucose-polymerizing activities. Curcumin treatment significantly decreased the protein of protein kinase C (PKC) and poly ADP ribose polymerase (PARP) expression in the Cur group compared with the DC group. Moreover, the sorbitol dehydrogenase activity was significantly decreased and deterred glucose enters into the polyol pathway leading to an increased NADPH content in the Cur group compared with the DC group. Our data provides evidence that oxidative stress in diabetic rats may be attenuated by curcumin by inhibiting polyol pathway associated with down-regulated expression of PKC and PARP, as evidenced by both an increase the antioxidant enzymes levels and glycogen biosynthesis enzymes activities.
Collapse
Affiliation(s)
- Zhenglu Xie
- Agricultural and Biotechnology Department, Jinshan College of Fujian Agriculture and Forestry University, Fuzhou City, 350002, Fujian Province, P.R. China
- Collaborative Innovation Center of animal health and food safety application technology in Fujian, Fujian Vocational College of Agriculture, Fuzhou City, 350119, Fujian Province, P.R. China
| | - Xinqi Zeng
- Agricultural and Biotechnology Department, Jinshan College of Fujian Agriculture and Forestry University, Fuzhou City, 350002, Fujian Province, P.R. China
| | - Xiaqing Li
- Agricultural and Biotechnology Department, Jinshan College of Fujian Agriculture and Forestry University, Fuzhou City, 350002, Fujian Province, P.R. China
| | - Binbin Wu
- Agricultural and Biotechnology Department, Jinshan College of Fujian Agriculture and Forestry University, Fuzhou City, 350002, Fujian Province, P.R. China
| | - Guozhi Shen
- Agricultural and Biotechnology Department, Jinshan College of Fujian Agriculture and Forestry University, Fuzhou City, 350002, Fujian Province, P.R. China
| | - Qianying Wu
- Agricultural and Biotechnology Department, Jinshan College of Fujian Agriculture and Forestry University, Fuzhou City, 350002, Fujian Province, P.R. China
| | - Changbiao Wu
- Collaborative Innovation Center of animal health and food safety application technology in Fujian, Fujian Vocational College of Agriculture, Fuzhou City, 350119, Fujian Province, P.R. China
- Fujian Vocational College of Bioengineering, Fuzhou City, Fujian Province, P.R. China
| |
Collapse
|
21
|
Taghizadeh M, Rashidi AA, Taherian AA, Vakili Z, Mehran M. The Protective Effect of Hydroalcoholic Extract of Rosa canina (Dog Rose) Fruit on Liver Function and Structure in Streptozotocin-Induced Diabetes in Rats. J Diet Suppl 2017; 15:624-635. [PMID: 29095652 DOI: 10.1080/19390211.2017.1369205] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
This study was conducted to evaluate the hepatoprotective effects of Rosa canina (R. canina) extract on streptozotocin- (STZ-) induced diabetes in rats by measuring the fasting blood glucose (FBG), total antioxidant capacity (TAC), and liver enzyme activity, including serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST). Forty adult male Wistar rats were randomly divided into four groups and treated daily for 42 days as follows: group I (control) received saline as a vehicle; group II (diabetic) received saline; groups III and IV (diabetic) treated with 250 and 500 mg/kg body weight (BW) per day R. canina extract, respectively. Diabetes was induced by a single intraperitoneal (IP) injection of streptozotocin (50 mg/kg BW). At the end of the study, blood samples were collected via heart puncture and sera were used for estimation of the mentioned parameters. Then all the rats were sacrificed and their livers used for histopathological evaluations. In the untreated diabetic group, the results showed a significant increase in FBG, ALT, and AST levels compared to the other groups (p < .05). The level of TAC decreased in this group, but not significantly compared to the other groups (p > .05). In the treated groups, administration of R. canina extract significantly improved the mentioned parameters in a dose-dependent manner (p < .05). Histological evaluations indicated that R. canina extract ameliorated defective liver caused by STZ. It can be concluded that R. canina extract has a hepatoprotective effect in STZ-induced diabetes in rats.
Collapse
Affiliation(s)
- Mohsen Taghizadeh
- a Research Center for Biochemistry and Nutrition in Metabolic Diseases , Kashan University of Medical Sciences , Kashan , I.R. Iran
| | - Ali Akbar Rashidi
- b Non-Communicable Disease Research Center , Fasa University of Medical Sciences , Fasa , Iran
| | - Ali Akbar Taherian
- c Anatomical Sciences Research Center , Kashan University of Medical Sciences , Kashan , I.R. Iran
| | - Zarichehr Vakili
- c Anatomical Sciences Research Center , Kashan University of Medical Sciences , Kashan , I.R. Iran
| | - Mehdi Mehran
- d Phytochemistry Group , Barij Medicinal Plants Research Center , Kashan , I.R. Iran
| |
Collapse
|
22
|
Composition and properties of peptides that survive standardised in vitro gastro-pancreatic digestion of bovine milk. Int Dairy J 2016. [DOI: 10.1016/j.idairyj.2016.06.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
|
23
|
Taghizadeh M, Rashidi AA, Taherian AA, Vakili Z, Sajad Sajadian M, Ghardashi M. Antidiabetic and Antihyperlipidemic Effects of Ethanol Extract of Rosa canina L. fruit on Diabetic Rats. J Evid Based Complementary Altern Med 2016; 21:NP25-30. [DOI: 10.1177/2156587215612626] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 09/27/2015] [Indexed: 11/15/2022] Open
Abstract
Rosa canina L. (Rosaceae) has been traditionally used as a medicinal plant. This study was undertaken to evaluate the antidiabetic and antihyperlipidemic effects of Rosa canina fruit extract in streptozotocin induced diabetic rats. The results showed oral administration of Rosa canina fruit extract significantly ameliorated the high levels of blood glucose compared with the control group. Serum triglyceride levels significantly decreased by the administration of Rosa canina extract compared with control. Histopathological examinations showed that the Rosa canina extract improved islets necrotic and regenerated pancreatic islet cells. Rosa canina extract has the antihyperglycemic and antihyperlipidemic effects in streptozotocin-induced diabetic rats.
Collapse
|
24
|
Bourebaba L, Saci S, Touguit D, Gali L, Terkmane S, Oukil N, Bedjou F. Evaluation of antidiabetic effect of total calystegines extracted from Hyoscyamus albus. Biomed Pharmacother 2016; 82:337-44. [PMID: 27470371 DOI: 10.1016/j.biopha.2016.05.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2015] [Revised: 05/05/2016] [Accepted: 05/09/2016] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Hyoscyamus albus L. (Solanaceae) an old medicinal plant is a rich source of tropane and nortropane alkaloids which confers to this plant a number of very interesting and beneficial therapeutic effects. PURPOSE Calystegines that are polyhydroxylated alkaloids and imino-sugars poccess significant glycosidases inhibitory activities and are therefore good candidats for the treatment of diabetes mellitus. STUDY DESIGN Calystegines extracted from Hyoscyamys albus seeds were tested for teir acute oral toxicity and investigated for their in-vivo antidiabetic effect on Streptozotocine induced diabetes in mice. METHODES Calystegines were extracted from the seeds plant using an Ion exchange column; the remaining extract was then administrated orally to mice at several single doses for acute toxicity assay. A dose of 130mg/kg streptozotocine was injected to mice to induce diabetes mellitus, and diabetic mice were treated orally during 20days with 10mg/kg and 20mg/kg calystegines and 20mg/kg glibenclamide as the reference drug. RESULTS Acute oral toxicity showed that calystegines are not toxic up to a dose of 2000mg/kg with absence of any signs of intoxication and damages in Liver and kidney tissues. The nortropane alkaloids markedly reduced blood glucose levels and lipid parameters of diabetic mice to normal concentrations after 20days of treatment at 10mg/kg and 20mg/kg (p<0.05). Histopathological study of diabetic mice pancreas indicated that calystegines of Hyoscyamus albus have minimized streptozotocine damages on β-cells of islets of langerhans, stimulated β-cells regeneration and improved with this insulin secretion. CONCLUSION The findings of this study suggest that calystegines are potent antidiabetic agents with antihyperglicemic and hypolipidemic effects, and a protective fonction on pancreas in streptozotocin induced diabetes in mice.
Collapse
Affiliation(s)
- Lynda Bourebaba
- Laboratoire de Biotechnologie végétale et d'Ethnobotanique, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, 06000 Bejaia, Algérie.
| | - Souaad Saci
- Laboratoire de Biotechnologie végétale et d'Ethnobotanique, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, 06000 Bejaia, Algérie
| | - Damia Touguit
- Laboratoire de Biotechnologie végétale et d'Ethnobotanique, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, 06000 Bejaia, Algérie
| | - Lynda Gali
- Laboratoire de Biotechnologie végétale et d'Ethnobotanique, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, 06000 Bejaia, Algérie
| | - Schahinez Terkmane
- Laboratoire de Biotechnologie végétale et d'Ethnobotanique, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, 06000 Bejaia, Algérie
| | - Naima Oukil
- Laboratoire de Biotechnologie végétale et d'Ethnobotanique, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, 06000 Bejaia, Algérie
| | - Fatiha Bedjou
- Laboratoire de Biotechnologie végétale et d'Ethnobotanique, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, 06000 Bejaia, Algérie
| |
Collapse
|
25
|
Sun L, Wang C, Dai Y, Chu Y, Han J, Zhou J, Cai X, Huang W, Qian H. Coumaglutide, a novel long-acting GLP-1 analog, inhibits β-cell apoptosis in vitro and invokes sustained glycemic control in vivo. Eur J Pharmacol 2015; 767:211-9. [DOI: 10.1016/j.ejphar.2015.10.028] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 10/14/2015] [Accepted: 10/14/2015] [Indexed: 12/25/2022]
|
26
|
Zhang W, Song S, Liu F, Liu Y, Zhang Y. Beta-casomorphin-7 prevents epithelial-mesenchymal transdifferentiation of NRK-52E cells at high glucose level: Involvement of AngII-TGF-β1 pathway. Peptides 2015; 70:37-44. [PMID: 25882007 DOI: 10.1016/j.peptides.2015.04.002] [Citation(s) in RCA: 12] [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: 02/24/2015] [Revised: 04/01/2015] [Accepted: 04/02/2015] [Indexed: 02/08/2023]
Abstract
BACKGROUND Hyperglycemia is the most important risk factor in the progression of renal fibrosis in diabetic kidney. Based on previous studies, β-casomorphin-7 may exert anti-fibrotic activities in diabetic rats. However, the role of β-casomorphin-7 in the pathogenesis of renal tubulointerstitial fibrosis remains unclear. Thus, this study was designed to investigate the protective effect of β-casomorphin-7 on epithelial-mesenchymal transition (EMT) of NRK-52E cells treated under hyperglycemic condition and to explore the possible mechanism. RESEARCH DESIGN AND METHODS NRK-52E cells were cultured in high glucose (30 mM) for 3 days. Different concentrations of β-casomorphin-7, naloxone (antagonist of opioid receptor) and losartan (antagonist of angiotensin II type I receptor) were added in the culture. Expression of α-smooth muscle actin (α-SMA), E-cadherin, vimentin and cytokeratin19 mRNA were determined by real-time PCR. Protein levels of E-cadherin and α-SMA were analyzed by Western blotting. The concentrations of angiotensin (Ang) II and transforming growth factor β1 (TGF-β1) in the culture medium were determined. RESULTS High glucose-induced up-regulation of vimentin mRNA and α-SMA mRNA and protein were significantly inhibited by β-casomorphin-7. On the contrary, high glucose-induced down-regulation of cytokeratin19 mRNA and E-cad mRNA and protein was significantly reversed by β-casomorphin-7. β-casomorphin-7 significantly alleviate high glucose induced increase of AngII and TGF-β1 in the culture. Moreover, losartan significantly attenuated the expression of TGF-β1 and EMT of NRK-52E cells treated under hyperglycemic condition. But naloxone did not affect the EMT of NRK-52E cells treated by high glucose and β-casomorphin-7. CONCLUSION We demonstrate that β-casomorphin-7 has the potential to inhibit high glucose-induced renal proximal tubular EMT partly by modulating AngII-TGF-β1 pathway, but not by opioid receptor.
Collapse
Affiliation(s)
- Wei Zhang
- Key Lab of Animal Physiology and Biochemistry, Ministry of Agriculture, Nanjing Agriculture University, Nanjing, 210095, People's Republic of China; Key Lab of Human Function Genomics Jiangsu Province, Nanjing Medical University, Nanjing, 210029, People's Republic of China
| | - Shangxin Song
- Key Laboratory of Meat Processing and Quality Control, Ministry of Education, Nanjing Agricultural University, Nanjing 210095, People's Republic of China; Key Laboratory of Agricultural and Animal Products Processing and Quality Control, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Fei Liu
- Key Lab of Animal Physiology and Biochemistry, Ministry of Agriculture, Nanjing Agriculture University, Nanjing, 210095, People's Republic of China
| | - Yi Liu
- Key Lab of Animal Physiology and Biochemistry, Ministry of Agriculture, Nanjing Agriculture University, Nanjing, 210095, People's Republic of China
| | - Yuanshu Zhang
- Key Lab of Animal Physiology and Biochemistry, Ministry of Agriculture, Nanjing Agriculture University, Nanjing, 210095, People's Republic of China.
| |
Collapse
|
27
|
Dhanavathy G. Immunohistochemistry, histopathology, and biomarker studies of swertiamarin, a secoiridoid glycoside, prevents and protects streptozotocin-induced β-cell damage in Wistar rat pancreas. J Endocrinol Invest 2015; 38:669-84. [PMID: 25770453 DOI: 10.1007/s40618-015-0243-5] [Citation(s) in RCA: 12] [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: 11/13/2014] [Accepted: 01/12/2015] [Indexed: 01/28/2023]
Abstract
BACKGROUND Diabetes mellitus is globally the major cause for metabolic syndrome in STZ-induced diabetic rats, leading to mortality. Treatment of diabetes by oral hypoglycemic agents causes adverse side effects and thus treatment with natural herbal drugs like swertiamarin is promising. Swertiamarin, an active compound isolated from Enicostemma littorale possesses antidiabetic activity and enhances β cell regeneration which causes reversal of diabetes. OBJECTIVES The present study aims at the following: (1) to evaluate antidiabetic, anti-hyperlipidaemic, activity of swertiamarin in Streptozotocin- induced diabetic rats using biomarkers. (2) To assess histopathological alterations in Pancreas, Liver, Kidney, and Heart of swertiamarin-treated STZ-induced diabetic rats and confirm cytoprotective activity of swertiamarin by Immunohistochemistry and morphometric investigations. METHODS Diabetes was induced intraperitoneally in male Wistar rats by Streptozotocin (STZ 50 mg/kg). After STZ-induction, hyperglycemic rats were treated with doses of swertiamarin orally (15, 25, 50 mg/kg) each for 28 days. Glibenclamide (2.5 mg/kg), a sulphonyl urea, was used as a standard drug. The glycemic control was measured by the biochemical parameter assays. Histopathology analysis of organs and immunohistochemistry of islets were carried out. RESULTS Our study results showed that oral administration of swertiamarin at a dosage of 15, 25, 50 mg/kg bw for 28 days resulted in a significant (p < 0.01) decrease in fasting blood glucose, HbA1c, TC, TG, LDL, and increased the levels of hemoglobin, plasma insulin, TP, body weight, and HDL levels significantly (p < 0.01) when compared to STZ-induced diabetic rats, as confirmed by immunohistochemical studies. The effect of swertiamarin on Carbohydrate-metabolizing enzymes was investigated and found to have normal therapeutic activity. Histopathological studies of Pancreas of swertiamarin-treated diabetic rats showed regeneration of islets when compared to STZ-induced diabetic rats, as confirmed by immunohistochemical studies. CONCLUSION Our research results clearly substantiate that swertiamarin possesses antihyperglycemic, antihyperlipidemic, cytoprotective, and immune reactivity and also a broad spectrum potential of treating diabetes and other complications related to diabetes and hence can be developed into a potent oral antidiabetic drug.
Collapse
Affiliation(s)
- G Dhanavathy
- Department of Biotechnology, SRM University, Kattankulathur, Chennai, 603203, Tamilnadu, India.
| |
Collapse
|
28
|
Haq MRU, Kapila R, Saliganti V. Consumption of β-casomorphins-7/5 induce inflammatory immune response in mice gut through Th2 pathway. J Funct Foods 2014. [DOI: 10.1016/j.jff.2014.03.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
|
29
|
ul Haq MR, Kapila R, Shandilya UK, Kapila S. Impact of Milk Derived β-Casomorphins on Physiological Functions and Trends in Research: A Review. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2014. [DOI: 10.1080/10942912.2012.712077] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
30
|
Validation of the Antidiabetic and Hypolipidemic Effects of Clitocybe nuda by Assessment of Glucose Transporter 4 and Gluconeogenesis and AMPK Phosphorylation in Streptozotocin-Induced Mice. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2014; 2014:705636. [PMID: 24639883 PMCID: PMC3930086 DOI: 10.1155/2014/705636] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Accepted: 12/04/2013] [Indexed: 01/08/2023]
Abstract
The study was designed to investigate the effects of extract of Clitocybe nuda (CNE) on type 1 diabetes mellitus and dyslipidemia in streptozotocin- (STZ-) induced diabetic mice. Diabetes was induced by injection of STZ. Diabetic mice were randomly divided into five groups and given orally CNE (C1: 0.2, C2: 0.5, and C3: 1.0 g/kg body weight) or metformin (Metf) or vehicle for 4 weeks. STZ induction decreased in the levels of insulin, body weight, and the weight of skeletal muscle, whereas the levels of blood glucose, hemoglobin nonenzymatically (percent HbA1c), and circulating triglyceride (P < 0.001, P < 0.001, and P < 0.01, resp.) were increased. CNE decreased the levels of blood glucose, HbA1c, and triglyceride levels, whereas it increased the levels of insulin and leptin compared with the vehicle-treated STZ group. STZ induction caused a decrease in the protein contents of skeletal muscular and hepatic phosphorylation of AMP-activated protein kinase (phospho-AMPK) and muscular glucose transporter 4 (GLUT4). Muscular phospho-AMPK contents were increased in C2-, C3-, and Metf-treated groups. CNE and Metf significantly increased the muscular proteins of GLUT4. Liver phospho-AMPK showed an increase in all CNE- and Metf-treated groups combined with the decreased hepatic glucose production by decreasing phosphenolpyruvate carboxykinase (PEPCK), glucose-6-phosphatase (G6Pase), and 11beta hydroxysteroid dehydroxygenase (11β-HSD1) gene, which contributed to attenuating diabetic state. The study indicated that the hypoglycemic properties of CNE were related to both the increased muscular glucose uptake and the reduction in hepatic gluconeogenesis. CNE exerts hypolipidemic effect by increasing gene expressions of peroxisome proliferator-activated receptor α (PPARα) and decreasing expressions of fatty acid synthesis, including acyl-coenzyme A: diacylglycerol acyltransferase (DGAT) 2. Therefore, amelioration of diabetic and dyslipidemic state by CNE in STZ-induced diabetic mice occurred by regulation of GLUT4, PEPCK, DGAT2, and AMPK phosphorylation.
Collapse
|
31
|
Yang B, Chen W, Jin J, Mei Y, Wang X, Chen H, Yan S, Ru M, Gu G, Deng X, Qian H, Huang W. Evaluation of Hypoglycemic and Antioxidative Effects of Synthesized Peptide MC62. Chem Biol Drug Des 2013; 82:99-105. [DOI: 10.1111/cbdd.12137] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Revised: 02/27/2013] [Accepted: 03/18/2013] [Indexed: 11/26/2022]
Affiliation(s)
- Baowei Yang
- Center of Drug Discovery; State Key Laboratory of Natural Medicines; China Pharmaceutical University; 24 Tongjiaxiang; Nanjing; 210009; China
| | | | - Jing Jin
- Center of Drug Discovery; State Key Laboratory of Natural Medicines; China Pharmaceutical University; 24 Tongjiaxiang; Nanjing; 210009; China
| | - Yicheng Mei
- Center of Drug Discovery; State Key Laboratory of Natural Medicines; China Pharmaceutical University; 24 Tongjiaxiang; Nanjing; 210009; China
| | - Xuekun Wang
- Center of Drug Discovery; State Key Laboratory of Natural Medicines; China Pharmaceutical University; 24 Tongjiaxiang; Nanjing; 210009; China
| | - Hong Chen
- Center of Drug Discovery; State Key Laboratory of Natural Medicines; China Pharmaceutical University; 24 Tongjiaxiang; Nanjing; 210009; China
| | - Sijia Yan
- Center of Drug Discovery; State Key Laboratory of Natural Medicines; China Pharmaceutical University; 24 Tongjiaxiang; Nanjing; 210009; China
| | - Meng Ru
- Traditional Medicine College; China Pharmaceutical University; 24 Tongjiaxiang; Nanjing; 210009; China
| | - Guolong Gu
- Center of Drug Discovery; State Key Laboratory of Natural Medicines; China Pharmaceutical University; 24 Tongjiaxiang; Nanjing; 210009; China
| | - Xin Deng
- Center of Drug Discovery; State Key Laboratory of Natural Medicines; China Pharmaceutical University; 24 Tongjiaxiang; Nanjing; 210009; China
| | - Hai Qian
- Center of Drug Discovery; State Key Laboratory of Natural Medicines; China Pharmaceutical University; 24 Tongjiaxiang; Nanjing; 210009; China
| | - Wenlong Huang
- Center of Drug Discovery; State Key Laboratory of Natural Medicines; China Pharmaceutical University; 24 Tongjiaxiang; Nanjing; 210009; China
| |
Collapse
|
32
|
Han DN, Zhang DH, Wang LP, Zhang YS. Protective effect of β-casomorphin-7 on cardiomyopathy of streptozotocin-induced diabetic rats via inhibition of hyperglycemia and oxidative stress. Peptides 2013; 44:120-6. [PMID: 23562714 DOI: 10.1016/j.peptides.2013.03.028] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2013] [Revised: 03/26/2013] [Accepted: 03/26/2013] [Indexed: 01/30/2023]
Abstract
β-Casomorphin-7 (β-CM-7) is regarded as the most representative milk-derived bioactive peptide. The present work studies the efficacy of β-CM-7 against myocardial injury in streptozotocin-induced diabetic rats, focusing on the following assays: (1) the level of blood glucose and advanced glycosylation end product (AGE), the activity of lactate dehydrogenase (LDH) in serum; (2) the level of hydrogen peroxide (H2O2), the activity of Na(+)K(+)-ATPase, Ca(2+)Mg(2+)-ATPase and enzymatic antioxidants such as superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GSH-Px) in myocardial tissue; (3) the protein expression of glucose transporter-4 (GLUT-4) in myocardial tissue. It showed that with the influence of β-CM-7, the levels of blood glucose of β-CM-7 treatment group decreased markedly compared with model group (P<0.01) accompanied with their alleviated symptoms of diabetes. In the antioxidant and oxidant levels, β-CM-7 treatment group signified a remarkable increase in the activity of GSH-Px, SOD and CAT of the anti-oxidation system and meanwhile demonstrated a considerable reduction in H2O2 content (all P<0.05) in comparison with model group. We also found both the content of AGE and the activity of LDH of β-CM-7 treated group considerably reduced while the content of GLUT-4 and the activity of Na(+)K(+)-ATPase and Ca(2+)Mg(2+)-ATPase of β-CM-7 treated group increased obviously (P<0.05). Meanwhile the cardiac indexes were significantly lessened. Thus our assay validates that the remedy employing β-CM-7 may treat diabetic cardiomyopathy with high efficacy predominantly associated with the mechanism that β-CM-7 ameliorates myocardial energy metabolism and abates free-radical-mediated oxidative stress in blood and myocardium.
Collapse
Affiliation(s)
- Dong-Ning Han
- Key Laboratory of Animal Physiology and Biochemistry, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | | | | | | |
Collapse
|
33
|
Zhang W, Miao J, Wang S, Zhang Y. The protective effects of beta-casomorphin-7 against glucose -induced renal oxidative stress in vivo and vitro. PLoS One 2013; 8:e63472. [PMID: 23658831 PMCID: PMC3643933 DOI: 10.1371/journal.pone.0063472] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2012] [Accepted: 04/02/2013] [Indexed: 11/29/2022] Open
Abstract
Oxidative stress is implicated in the pathogenesis of diabetic nephropathy. The present study aimed to investigate the effect of β-casomorphin-7 (BCM7) on the oxidative stress occurring in kidney tissue in streptozotocin (STZ)-induced diabetic rats and proximal tubular epithelial cells (NRK-52E) exposure to high glucose (HG) by using biochemical methods. There is a significant decrease in plasma insulin and a significant increase in plasma glucagon in the rats of diabetic group. Oral administration of BCM7 for 30 days to rats with STZ-induced diabetes resulted in a significant increase in serum level of insulin, and a decrease in the level of glucagon. Moreover, rats with STZ-induced diabetes had lower levels of superoxide dismutase (SOD), glutathione peroxidase (GPx) and total antioxidative capacity (T-AOC), higher levels of malondialdehyde (MDA) and hydrogen peroxide (H2O2) in the kidney than that in the control rats. The administration of BCM7 altered the changes of SOD, GPx, T-AOC, MDA and H2O2 in the kidney of diabetic rats. Furthermore, BCM7 alleviated high glucose-induced decreasement in SOD and GPx activity, increasement in MDA contents in the NRK-52E cells. BCM7 ameliorated the changes of angiotensin converting enzyme (ACE) and ACE2 levels in the kidney of diabetic rats and BCM7 lowered the levels of angiotensin (Ang)II in the kidney of diabetic rats and culture medium for cells. Moreover losartan (antagonist of angiotensin II type I receptor) lowered the high glucose-induced oxidative stress in the NRK-52E cells. Our results suggest that administration of BCM7 would alleviate high glucose-induced renal oxidative stress in vivo and in vitro, which may be associated with down regulation of the concentration of Ang II partly.
Collapse
Affiliation(s)
- Wei Zhang
- Key Lab of Animal Physiology and Biochemistry, Ministry of Agriculture, Nanjing Agriculture University, Nanjing, People's Republic of China
| | - Jinfeng Miao
- Key Lab of Animal Physiology and Biochemistry, Ministry of Agriculture, Nanjing Agriculture University, Nanjing, People's Republic of China
| | - Shanshan Wang
- Key Lab of Animal Physiology and Biochemistry, Ministry of Agriculture, Nanjing Agriculture University, Nanjing, People's Republic of China
| | - Yuanshu Zhang
- Key Lab of Animal Physiology and Biochemistry, Ministry of Agriculture, Nanjing Agriculture University, Nanjing, People's Republic of China
- * E-mail:
| |
Collapse
|
34
|
Lim KH, Han JH, Lee JY, Park YS, Cho YS, Kang KD, Yuk WJ, Hwang KY, Seong SI, Kim B, Kwon J, Kang CW, Kim JH. Assessment of antidiabetogenic potential of fermented soybean extracts in streptozotocin-induced diabetic rat. Food Chem Toxicol 2012; 50:3941-8. [PMID: 22943971 DOI: 10.1016/j.fct.2012.08.036] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2012] [Revised: 08/05/2012] [Accepted: 08/16/2012] [Indexed: 02/02/2023]
Abstract
Most of the available drugs for the treatment of diabetes mellitus (DM) produce detrimental side effects, which has prompted an ongoing search for plant with the antidiabetic potential. The present study investigated the effect of soybean extracts fermented with Bacillus subtilis MORI, fermented soybean extracts (BTD-1) was investigated in streptozotocin (STZ)-induced diabetic rats. The possible effects of BTD-1 against hyperglycemia and free radical-mediated oxidative stress was investigated by assaying the plasma glucose level and the activity of enzymatic antioxidants, such as superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), catalase (CAT), and malondialdehyde (MDA). A significant increase in the levels of both plasma glucose and reactive oxygen species (ROS) was observed in the diabetic rats when compared to normal control group. After administration of BTD-1 (500 and 1000 mg/kg/day), the elevated plasma glucose level was significantly reduced while the plasma insulin level and the activities of SOD, GSH-Px, CAT and MDA were significantly increased. The results suggest that administration of BTD-1 can inhibit hyperglycemia and free radical-mediated oxidative stress. The administration of BTD-1 also inhibited the contractile response by norepinephrine (10(-10)-10(-5) M) in the presence of endothelium, and caused significant relaxation by carbachol (10(-8)-10(-5) M) in rat aorta. These findings indicate that BTD-1 improves vascular functions on STZ-induced diabetic rats. Therefore, subchronic administration of BTD-1 could prevent the functional changes in vascular reactivity in STZ-induced diabetic rats. The collective findings support that administration of BTD-1 may prevent some diabetes-related changes in vascular reactivity directly and/or indirectly due to its hypoglycaemic effect and inhibition of production of ROS.
Collapse
Affiliation(s)
- Kyu Hee Lim
- College of Veterinary Medicine, Biosafety Research Institute, Chonbuk National University, 664-14, 1GA Deokjin-Dong, Deokjin-Gu, Jeonju City, Jeollabuk-Do 561-756, Republic of Korea
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
35
|
Zhang W, Miao J, Ma C, Han D, Zhang Y. β-Casomorphin-7 attenuates the development of nephropathy in type I diabetes via inhibition of epithelial-mesenchymal transition of renal tubular epithelial cells. Peptides 2012; 36:186-91. [PMID: 22687367 DOI: 10.1016/j.peptides.2012.05.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2012] [Revised: 05/31/2012] [Accepted: 05/31/2012] [Indexed: 01/18/2023]
Abstract
This study was designed to investigate the putative protective effect of β-casomorphin-7 on diabetic nephropathy in a rat model, and to explore the possible mechanism of this effect. SD rats were randomly divided into the following three groups: control group, diabetes group and β-casomorphin-7-treatment group. All rats were euthanized after 30 days with or without β-casomorphin-7 treatment. Biochemical parameters including blood glucose and renal function were quantified. The concentration of plasma TGF-β1 was measured by ELISA. Histopathological changes to the kidney were studied by Masson and Sirius red staining. Expressions of α-smooth muscle actin (α-SMA), E-cadherin, vimentin, cytokeratin19 and TGF-β1 mRNA in rat renal cortices were analyzed by real-time PCR. Changes in α-SMA and E-cadherin protein expression in rat renal cortices were quantified by Western blot. β-Casomorphin-7 treatment of diabetic rats reduced urinary glucose, urinary protein, serum creatinine, blood urinary nitrogen, plasma TGF-β1 and the ratio of kidney: body weight. Masson and Sirius red staining showed that β-casomorphin-7 treatment attenuated renal interstitial fibrosis in diabetic rats. Compared to the control rats, diabetic rats had elevated expressions of α-SMA, vimentin and TGF-β1 mRNA and α -SMA protein and decreased expression of E-cadherin and cytokeratin19 mRNA, and E-cadherin protein. β-Casomorphin-7 treatment of diabetic rats partially normalized these changes. Our results suggest that administration of β-casomorphin-7 attenuates renal interstitial fibrosis caused by diabetes. This protective effect may be associated, in part, with down regulation of epithelial-mesenchymal transition of renal tubular epithelial cells.
Collapse
Affiliation(s)
- Wei Zhang
- Nanjing Agriculture University, Nanjing, People's Republic of China
| | | | | | | | | |
Collapse
|
36
|
Yin H, Miao J, Ma C, Sun G, Zhang Y. β-Casomorphin-7 cause decreasing in oxidative stress and inhibiting NF-κB-iNOS-NO signal pathway in pancreas of diabetes rats. J Food Sci 2012; 77:C278-82. [PMID: 22339544 DOI: 10.1111/j.1750-3841.2011.02577.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
β-Casomorphin-7 (β-CM-7) is a milk biological active peptide. The present study is aimed to investigate the protective effects of β-CM-7, against oxidative stress in pancreas of streptozotocin-induced diabetic rats by assaying malondialdehyde (MDA), nitric oxide (NO) level, the activity of enzymatic antioxidants such as superoxide dismutase (SOD), catalase, glutathione peroxidase (GSH-Px), and NF-κB, inducible nitric oxide synthase (iNOS) gene expression. A significant increase in the level of oxidative stress was observed in pancreas of the diabetic rats when compared to control rats. After 15 d oral administration of β-CM-7 (7.5 × 10(-8) mol/d), the pancreas MDA level was markedly reduced. Oral administration of β-CM-7 to diabetic rats showed an obviously increase in the activity of catalase in pancreas, oral administration of β-CM-7 to the diabetic group of rats also showed a reduction of NF-κB and iNOS gene expression in pancreas. The elevated pancreas NO level was markedly reduced by the oral administration of β-CM-7. Thus, the results of the present study suggest that β-CM-7 may cause protective effects such as pronounced decreasing in oxidative stress and inhibiting NF-κB-iNOS-NO signal pathway in pancreas of diabetes rats.
Collapse
Affiliation(s)
- Hong Yin
- Key Laboratory of Animal Physiology and Biochemistry, Nanjing Agricultural Univ, Nanjing 210095, PR China
| | | | | | | | | |
Collapse
|
37
|
Gandhi GR, Ignacimuthu S, Paulraj MG. Hypoglycemic and β-cells regenerative effects of Aegle marmelos (L.) Corr. bark extract in streptozotocin-induced diabetic rats. Food Chem Toxicol 2012; 50:1667-74. [DOI: 10.1016/j.fct.2012.01.030] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2011] [Revised: 01/18/2012] [Accepted: 01/23/2012] [Indexed: 01/09/2023]
|
38
|
Gandhi GR, Ignacimuthu S, Paulraj MG, Sasikumar P. Antihyperglycemic activity and antidiabetic effect of methyl caffeate isolated from Solanum torvum Swartz. fruit in streptozotocin induced diabetic rats. Eur J Pharmacol 2011; 670:623-31. [PMID: 21963451 DOI: 10.1016/j.ejphar.2011.09.159] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2011] [Revised: 09/05/2011] [Accepted: 09/11/2011] [Indexed: 10/17/2022]
Abstract
Natural remedies from medicinal plants are considered to be effective and safe alternatives to treat diabetes mellitus. Solanum torvum Swartz. fruit is widely used in the traditional system of medicine to treat diabetes. In the present study methyl caffeate, isolated from S. torvum fruit, was screened for its efficacy in controlling diabetes in animal models. Antihyperglycemic effect of methyl caffeate was studied in normal glucose-fed rats. The effects of oral administration of methyl caffeate (10, 20 and 40 mg/kg) for 28 days on body weight, fasting blood glucose, plasma insulin, hemoglobin, glycated hemoglobin, total protein, hepatic glycogen and carbohydrate metabolism enzymes in streptozotocin induced diabetic rats were investigated. Histological observations in the pancreas and GLUT4 expression in skeletal muscles were also studied. Methyl caffeate at 40 mg/kg significantly prevented the increase in blood glucose level after glucose administration at 60 min in comparison to the hyperglycemic control group. In streptozotocin induced diabetic rats, methyl caffeate produced significant reduction in blood glucose and increased body weight. The levels and/or activities of other biochemical parameters were near normal due to treatment with methyl caffeate. Methyl caffeate treated diabetic rats showed upregulation of GLUT4 and regeneration of β-cells in the pancreas. These results substantiated that methyl caffeate possessed hypoglycemic effect, and it could be developed into a potent oral antidiabetic drug.
Collapse
Affiliation(s)
- Gopalsamy Rajiv Gandhi
- Division of Ethnopharmacology, Entomology Research Institute, Loyola College, Chennai 600 034, India
| | | | | | | |
Collapse
|