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Saadi HF, Zamani M, Koohpeyma F, Raeisi A, Amirahmadi Z, Rezaei N, Joolidehpoor Z, Shams M, Dastghaib S. Therapeutic potential of aquatic Stevia extract in alleviating endoplasmic reticulum stress and liver damage in streptozotocin-induced diabetic rats. Mol Biol Rep 2024; 51:993. [PMID: 39292293 DOI: 10.1007/s11033-024-09907-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2024] [Accepted: 09/03/2024] [Indexed: 09/19/2024]
Abstract
BACKGROUND Misfolded proteins accumulate in the liver due to endoplasmic reticulum stress (ERS) caused by high blood glucose levels in diabetes. This triggers the unfolded protein response (UPR), which if persistently activated, results in cellular dysfunction. Chronic ER stress increases inflammation, insulin resistance, and apoptosis. There is growing interest in using native plants and traditional medicine for diabetes treatment. The stevia plant has recently gained attention for its potential therapeutic effects. This study investigates the protective effects of aquatic stevia extract on liver damage, ER stress, and the UPR pathway in streptozotocin (STZ)-induced diabetic rats. METHODS Rats were randomly divided into four groups: a control group that received 1 ml of water; a diabetic group induced by intraperitoneal injection of STZ (60 mg/kg); a diabetic group treated with metformin (500 mg/kg); and a diabetic group treated with aquatic extracts of stevia (400 mg/kg). After 28 days, various parameters were assessed, including inflammatory markers, oxidative stress indices, antioxidant levels, gene expression, stereology, and liver tissue pathology. RESULT Compared to the diabetic control group, treatment with stevia significantly decreased serum glucose, liver enzymes, inflammatory markers, and oxidative stress while increasing body weight and antioxidant levels. Additionally, stevia extract manipulated UPR gene expression and reduced apoptosis pathway activation. Histological examination revealed improved liver tissue morphology in stevia-treated diabetic rats. CONCLUSION These findings suggest that aquatic stevia extract mitigates ER stress in diabetic rats by modulating the IRE-1 arm of the UPR and apoptosis pathways, highlighting its potential therapeutic benefits for diabetes-related liver complications.
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Affiliation(s)
- Hediye Fahandezh Saadi
- Endocrinology and Metabolism Research Center, Shiraz University of Medical Science, P.O. Box: 71345-1744, Shiraz, Iran
| | - Mozhdeh Zamani
- Autophagy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
- Department of Biochemistry, Faculty of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Farhad Koohpeyma
- Endocrinology and Metabolism Research Center, Shiraz University of Medical Science, P.O. Box: 71345-1744, Shiraz, Iran
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Alireza Raeisi
- Endocrinology and Metabolism Research Center, Shiraz University of Medical Science, P.O. Box: 71345-1744, Shiraz, Iran
| | - Zahra Amirahmadi
- Endocrinology and Metabolism Research Center, Shiraz University of Medical Science, P.O. Box: 71345-1744, Shiraz, Iran
| | - Narges Rezaei
- Hematology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zahra Joolidehpoor
- Endocrinology and Metabolism Research Center, Shiraz University of Medical Science, P.O. Box: 71345-1744, Shiraz, Iran
| | - Mesbah Shams
- Endocrinology and Metabolism Research Center, Shiraz University of Medical Science, P.O. Box: 71345-1744, Shiraz, Iran
| | - Sanaz Dastghaib
- Endocrinology and Metabolism Research Center, Shiraz University of Medical Science, P.O. Box: 71345-1744, Shiraz, Iran.
- Autophagy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
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Yang Y, Liu Y, Xu M, Cai J, Li Q, Wan Z, Yang X. Hierarchical Self-Aggregation of Multifunctional Steviol Glycosides in Aqueous Solutions. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:16438-16448. [PMID: 38981019 DOI: 10.1021/acs.jafc.4c02386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
Steviol glycosides (SGs) are a natural sweetener widely used in the food and beverage industry, but the low solubility and stability of SG aqueous solutions greatly limit their application performance, especially in liquid formulations. In this work, we explore the solubility behavior of rebaudioside A (Reb A) in water, a major component of SGs, with the aim of clarifying the underlying mechanisms of the solubility and stability constraints of SGs, as well as the impact on their multifunctional properties. We demonstrate for the first time that Reb A exhibits hierarchical self-assembly in solutions, forming spherical micelles first when the concentration exceeds its critical micelle concentration (5.071 mg/mL), which then further assemble into large rod-like aggregates. The formation of such large Reb A aggregates is mainly dominated by hydrogen bonding and short-range Coulomb interaction energy, thus leading to the low solubility and precipitation of Reb A solutions. Surprisingly, aggregated Reb A structures display significantly improved organoleptic properties, revealing that self-aggregation can be developed as a simple, efficient, and green strategy for improving the taste profile of SGs. Additionally, the self-aggregation of Reb A at high concentrations impairs active encapsulation and also affects its interfacial and emulsifying properties.
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Affiliation(s)
- Yunyi Yang
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
| | - Yang Liu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Mengyue Xu
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
- Laboratory of Physics and Physical Chemistry of Foods, Wageningen University, Bornse Weilanden 9, 6708WG Wageningen, The Netherlands
| | - Jiyang Cai
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
| | - Qing Li
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
| | - Zhili Wan
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
- Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), Guangzhou 510640, China
| | - Xiaoquan Yang
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
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Bracchi I, Morais J, Coelho JA, Ferreira AF, Alves I, Mendes C, Correia B, Gonçalves A, Guimarães JT, Pires IF, Keating E, Negrão R. The Cardiometabolic Impact of Rebaudioside A Exposure during the Reproductive Stage. BIOLOGY 2024; 13:163. [PMID: 38534433 PMCID: PMC10967885 DOI: 10.3390/biology13030163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 02/03/2024] [Accepted: 02/20/2024] [Indexed: 03/28/2024]
Abstract
The consumption of non-sugar sweeteners (NSS) has increased during pregnancy. The European Food Safety Agency suggested that steviol glycosides, such as Rebaudioside A (RebA), the major sweetener component of stevia, are safe for humans up to a dose of 4 mg/kg body weight/day. However, the World Health Organization recommended in 2023 the restraint of using NSS, including stevia, at any life stage, highlighting the need to study NSS safety in early periods of development. We aimed to study the mitochondrial and cardiometabolic effects of long-term RebA consumption during the reproductive stage of the life cycle. Female rats were exposed to RebA (4 mg steviol equivalents/kg body weight/day) in the drinking water from 4 weeks before mating until weaning. Morphometry, food and water consumption, glucose and lipid homeostasis, heart structure, function, and mitochondrial function were assessed. RebA showed an atrophic effect in the heart, decreasing cardiomyocyte cross-sectional area and myocardial fibrosis without repercussions on cardiac function. Mitochondrial and myofilamentary functions were not altered. Glucose tolerance and insulin sensitivity were not affected, but fasting glycemia and total plasma cholesterol decreased. This work suggests that this RebA dose is safe for female consumption during the reproductive stage, from a cardiometabolic perspective. However, studies on the effects of RebA exposure on the offspring are mandatory.
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Affiliation(s)
- Isabella Bracchi
- Unit of Biochemistry, Department Biomedicine, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal; (I.B.); (E.K.)
- CINTESIS, Center for Health Technology and Services Research, 4200-319 Porto, Portugal;
- Department of Functional Sciences, School of Health, Polytechnic Institute of Porto, 4200-072 Porto, Portugal
| | - Juliana Morais
- CINTESIS, Center for Health Technology and Services Research, 4200-319 Porto, Portugal;
- Department of Functional Sciences, School of Health, Polytechnic Institute of Porto, 4200-072 Porto, Portugal
- Department of Surgery and Physiology, Faculdade de Medicina, Universidade do Porto, 4200-319 Porto, Portugal; (J.A.C.); (C.M.)
| | - João Almeida Coelho
- Department of Surgery and Physiology, Faculdade de Medicina, Universidade do Porto, 4200-319 Porto, Portugal; (J.A.C.); (C.M.)
- UniC@RISE, Unidade de Investigação e Desenvolvimento Cardiovascular, Faculdade de Medicina, Universidade do Porto, 4200-319 Porto, Portugal
| | - Ana Filipa Ferreira
- Department of Surgery and Physiology, Faculdade de Medicina, Universidade do Porto, 4200-319 Porto, Portugal; (J.A.C.); (C.M.)
- UniC@RISE, Unidade de Investigação e Desenvolvimento Cardiovascular, Faculdade de Medicina, Universidade do Porto, 4200-319 Porto, Portugal
| | - Inês Alves
- Department of Surgery and Physiology, Faculdade de Medicina, Universidade do Porto, 4200-319 Porto, Portugal; (J.A.C.); (C.M.)
- UniC@RISE, Unidade de Investigação e Desenvolvimento Cardiovascular, Faculdade de Medicina, Universidade do Porto, 4200-319 Porto, Portugal
| | - Cláudia Mendes
- Department of Surgery and Physiology, Faculdade de Medicina, Universidade do Porto, 4200-319 Porto, Portugal; (J.A.C.); (C.M.)
- UniC@RISE, Unidade de Investigação e Desenvolvimento Cardiovascular, Faculdade de Medicina, Universidade do Porto, 4200-319 Porto, Portugal
| | - Beatriz Correia
- Department of Surgery and Physiology, Faculdade de Medicina, Universidade do Porto, 4200-319 Porto, Portugal; (J.A.C.); (C.M.)
- Nutrition & Metabolism, NOVA Medical School|FCM, NOVA University Lisbon, 1169-056 Lisbon, Portugal
| | - Alexandre Gonçalves
- Department of Surgery and Physiology, Faculdade de Medicina, Universidade do Porto, 4200-319 Porto, Portugal; (J.A.C.); (C.M.)
- UniC@RISE, Unidade de Investigação e Desenvolvimento Cardiovascular, Faculdade de Medicina, Universidade do Porto, 4200-319 Porto, Portugal
| | - João Tiago Guimarães
- Unit of Biochemistry, Department Biomedicine, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal; (I.B.); (E.K.)
- Clinical Pathology, São João University Hospital Center, 4200-319 Porto, Portugal
- EPIUnit, Institute of Public Health, University of Porto, 4200-319 Porto, Portugal
| | - Inês Falcão Pires
- Department of Surgery and Physiology, Faculdade de Medicina, Universidade do Porto, 4200-319 Porto, Portugal; (J.A.C.); (C.M.)
- UniC@RISE, Unidade de Investigação e Desenvolvimento Cardiovascular, Faculdade de Medicina, Universidade do Porto, 4200-319 Porto, Portugal
| | - Elisa Keating
- Unit of Biochemistry, Department Biomedicine, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal; (I.B.); (E.K.)
- CINTESIS@RISE, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal
| | - Rita Negrão
- Unit of Biochemistry, Department Biomedicine, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal; (I.B.); (E.K.)
- CINTESIS@RISE, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal
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Patel S, Navale A. The Natural Sweetener Stevia: An Updated Review on its Phytochemistry, Health Benefits, and Anti-diabetic Study. Curr Diabetes Rev 2024; 20:e010523216398. [PMID: 37138480 DOI: 10.2174/1573399819666230501210803] [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: 07/25/2022] [Revised: 03/01/2023] [Accepted: 03/14/2023] [Indexed: 05/05/2023]
Abstract
Stevia rebaudiana Bertoni is one of the significant high qualities of non-caloric sugar substitute sweetener plants against diabetes disease. Diabetes mellitus is one of the most common metabolic diseases caused by insulin secretion defects, insulin resistance in peripheral tissues, or both. Stevia rebaudiana is a perennial shrub of the Compositae family that is grown in several places around the world. It contains a plethora of different bioactive constituents which are responsible for several activities and sweetness. This sweetness is due to the presence of steviol glycosides which is 100-300 times sweeter than sucrose. Furthermore, stevia reduces oxidative stress, lowering the risk of diabetes. Its leaves have been used to control and treat diabetes and a variety of other metabolic diseases. This review summarizes the history, bioactive constituents of S. rebaudiana extract, pharmacology, anti-diabetic activity, and its application, especially in food supplements.
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Affiliation(s)
- Shraddha Patel
- Parul Institute of Pharmacy, Parul University, Vadodara, Gujarat, India
| | - Archana Navale
- Parul Institute of Pharmacy, Parul University, Vadodara, Gujarat, India
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Ahmad MA, Chaudhary S, Deng X, Cheema M, Javed R. Nano-stevia interaction: Past, present, and future. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 201:107807. [PMID: 37311291 DOI: 10.1016/j.plaphy.2023.107807] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 04/27/2023] [Accepted: 05/30/2023] [Indexed: 06/15/2023]
Abstract
Nanotechnology has recently been emerged as a transformative technology that offers efficient and sustainable options for nano-bio interface. There has been a considerable interest in exploring the factors affecting elicitation mechanism and nanomaterials have been emerged as strong elicitors in medicinal plants. Stevia rebaudiana is well-known bio-sweetener and the presence of zero calorie, steviol glycosides (SGs) in the leaves of S. rebaudiana have made it a desirable crop to be cultivated on large scale to obtain its higher yield and maximal content of high quality natural sweeteners. Besides, phenolics, flavonoids, and antioxidants are abundant in stevia which contribute to its medicinal importance. Currently, scientists are trying to increase the market value of stevia by the enhancement in production of its bioactive compounds. As such, various in vitro and cell culture strategies have been adopted. In stevia agronanotechnology, nanoparticles behave as elicitors for the triggering of its secondary metabolites, specifically rebaudioside A. This review article discusses the importance of S. rebaudiana and SGs, conventional approaches that have failed to increase the desired yield and quality of stevia, modern approaches that are currently being applied to obtain utmost benefits of SGs, and future needs of advanced technologies for further exploitation of this wonder of nature.
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Affiliation(s)
- Muhammad Arslan Ahmad
- Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060, China; College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Sadaf Chaudhary
- Department of Botany, University of Agriculture Faisalabad, Faisalabad, 38000, Pakistan
| | - Xu Deng
- Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060, China.
| | - Mumtaz Cheema
- School of Science and the Environment, Grenfell Campus, Memorial University of Newfoundland and Labrador, Corner Brook, A2H 5G4, Newfoundland, Canada
| | - Rabia Javed
- School of Science and the Environment, Grenfell Campus, Memorial University of Newfoundland and Labrador, Corner Brook, A2H 5G4, Newfoundland, Canada.
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Scrob T, Filip GA, Baldea I, Varodi SM, Cimpoiu C. Sweeteners' Influence on In Vitro α-Glucosidase Inhibitory Activity, Cytotoxicity, Stability and In Vivo Bioavailability of the Anthocyanins from Lingonberry Jams. Foods 2023; 12:2569. [PMID: 37444306 DOI: 10.3390/foods12132569] [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: 05/15/2023] [Revised: 06/19/2023] [Accepted: 06/28/2023] [Indexed: 07/15/2023] Open
Abstract
Several lines of evidence demonstrate the multiple health-promoting properties of anthocyanins, but little is known regarding the bioavailability of these phytochemicals. Therefore, the stability during storage and bioavailability of anthocyanins from lingonberries jams were determined by HPLC, together with the impact of used sweeteners on their adsorption. Further, the in vitro α-glucosidase inhibition using spectrophotometric methods and cytotoxicity determined on normal and colon cancer cells were communicated. The content of anthocyanins was significantly decreased during storage in coconut sugar-based jam, but was best preserved in jam with fructose and stevia. Fructose and stevia-based jams showed the highest inhibition activity upon α-glucosidase. Lingonberry jams showed no cytotoxic effects on normal cells, but at low concentration reduced the tumor cells viability. Anthocyanins were still detectable in rats' blood streams after 24 h, showing a prolonged bioavailability in rats. This study brings important results that will enable the development of functional food products.
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Affiliation(s)
- Teodora Scrob
- Faculty of Chemistry and Chemical Engineering, Babes-Bolyai University, 11 Arany Janos, 400028 Cluj-Napoca, Romania
- Research Center for Advanced Chemical Analysis, Instrumentation and Chemometrics, 11 Arany Janos, 400028 Cluj-Napoca, Romania
| | - Gabriela Adriana Filip
- Department of Physiology, "Iuliu Hatieganu" University of Medicine and Pharmacy, 1-3 Clinicilor Street, 400006 Cluj-Napoca, Romania
| | - Ioana Baldea
- Department of Physiology, "Iuliu Hatieganu" University of Medicine and Pharmacy, 1-3 Clinicilor Street, 400006 Cluj-Napoca, Romania
| | - Sânziana Maria Varodi
- Faculty of Chemistry and Chemical Engineering, Babes-Bolyai University, 11 Arany Janos, 400028 Cluj-Napoca, Romania
| | - Claudia Cimpoiu
- Faculty of Chemistry and Chemical Engineering, Babes-Bolyai University, 11 Arany Janos, 400028 Cluj-Napoca, Romania
- Research Center for Advanced Chemical Analysis, Instrumentation and Chemometrics, 11 Arany Janos, 400028 Cluj-Napoca, Romania
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Khakpai F, Naseroleslami M, Moheb-Alian M, Ghanimati E, Abdollah-Pour F, Mousavi-Niri N. Intra-gastrically administration of Stevia and particularly Nano-Stevia reversed the hyperglycemia, anxiety, and memory impairment in streptozotocin-induced diabetic rats. Physiol Behav 2023; 263:114100. [PMID: 36716984 DOI: 10.1016/j.physbeh.2023.114100] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 01/16/2023] [Accepted: 01/24/2023] [Indexed: 01/30/2023]
Abstract
Type II diabetes mellitus is a group of metabolic disorders considered chronic hyperglycemia resulting from deficits in insulin secretion or insulin function. This disease usually links with various psychological problems such as anxiety and cognitive dysfunctions. Stevia (Stevia rebaudiana Bertoni) is a natural and healthy substitute sweetener for sugar and artificial sweeteners. It has become essential for human diets and food manufacturers. The aim of this research was to investigate the effects of Stevia and Nano-stevia on the regulation of anxiety and memory processes in male diabetic rats. The elevated plus-maze (EPM) test-retest procedure was used to assess anxiety and memory in male diabetic rats. The findings exhibited that induction of diabetes caused a distorted cellular arrangement in the liver tissue of male rats. On the other hand, intra-gastrically administration of Stevia (1 ml/kg) and nano-Stevia (1 ml/kg) indicated a normal appearance in the liver tissue of male diabetic rats. Moreover, induction of diabetes caused the augmentation of blood glucose, reduction in time spent in%open-arm time (%OAT) on the test day, and enhancement of%OAT on the retest day. Therefore, induction of diabetes in rats produced hyperglycemia, anxiogenic effect, and memory impairment and these responses were reversed by drug treatment. Furthermore, intra-gastrically application of Stevia (1 ml/kg) and nano-Stevia (1 ml/kg) reversed the hyperglycemia, anxiogenic effect, and memory impairment in male diabetic rats. Interestingly, Nano-Stevia exhibited the highest significant response rather than Stevia. In conclusion, the results of this research suggested the beneficial properties of Stevia and particularly Nano-Stevia on inducing anti-diabetic effects, anxiolytic behavior, as well as memory improvement in male diabetic rats.
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Affiliation(s)
- Fatemeh Khakpai
- Department of Physiology, Faculty of Medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Maryam Naseroleslami
- Department of Cellular and Molecular Biology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Marzieh Moheb-Alian
- Department of Cellular and Molecular Biology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Herbal pharmacology research center, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Elham Ghanimati
- Department of Cellular and Molecular Biology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Herbal pharmacology research center, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Faezeh Abdollah-Pour
- Department of Cellular and Molecular Biology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Herbal pharmacology research center, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Neda Mousavi-Niri
- Department of Biotechnology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
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Katirci E, Kendirci-Katirci R, Korgun ET. Effects of Stevioside on the Expressions of GLUT 1, GLUT 3, and GLUT 4 Proteins in Diabetic Rat Placenta. PLANTA MEDICA 2023. [PMID: 36913970 DOI: 10.1055/a-2003-9463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The placenta provides maternal-fetal nutrient transport. The primary source of energy for fetus development is glucose and maternal-fetal glucose transport occurs through glucose transporters (GLUTs). Stevioside, a component of Stevia rebaudiana Bertoni, is used for medicinal and commercial purposes. We aim to determine the effects of stevioside on GLUT 1, GLUT 3, and GLUT 4 proteins expressions in diabetic rat placentas. The rats are divided into four groups. A single dose of streptozotocin (STZ) is administered to form the diabetic groups. Pregnant rats receive stevioside to form the stevioside and diabetic + stevioside groups. According to immunohistochemistry results, GLUT 1 protein is found in both the labyrinth and junctional zones. GLUT 3 protein is limited in the labyrinth zone. GLUT 4 protein is detected in trophoblast cells. According to Western blotting results, on the 15th and 20th days of pregnancy, there is no difference in the expression of GLUT 1 protein between groups. On the 20th day of pregnancy, the expression of GLUT 3 protein in the diabetic group is statistically higher compared to the control group. On the 15th day and 20th day of pregnancy, the expression of GLUT 4 protein in the diabetic group is statistically lower compared to the control group. Insulin levels in blood samples derived from rat abdominal aorta are determined by the ELISA method. According to the ELISA results, there is no difference in insulin protein concentration between groups. Stevioside treatment reduces GLUT 1 protein expression under diabetic conditions.
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Affiliation(s)
- Ertan Katirci
- Department of Histology and Embryology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - Remziye Kendirci-Katirci
- Department of Histology and Embryology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - Emin Turkay Korgun
- Department of Histology and Embryology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
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HOSSAİN MA, AL HARTHY MS, SAİD AL TOUBY DS. Review on phytochemicals and biological activities of natural sweeteners Stevia rebaudiana Bertoni. INTERNATIONAL JOURNAL OF SECONDARY METABOLITE 2022. [DOI: 10.21448/ijsm.1122618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Diabetes is a chronic metabolic disease that creates high blood sugar level. Therefore, diabetes awareness is necessary to prevent diabetes by reducing sugar intake and using low-calorie alternative sweeteners instead. Stevia rebaudiana is a medicinal plant species belonging to the Compositae family. It is a sweet herb that contains diterpene glycosides, which are directly responsible for the sweet taste, but they have no caloric value. Since ancient times, there have been several reports on the use of S. rebaudiana as an alternative sweetener and extended research has been conducted on its phytochemicals and biological activities. The plant contains a good number of phytochemicals with significant biological activities, namely polyphenolic derivatives, diterpenes glycosides, alkaloids, glycosides, tannins, chlorophylls, carotenoids, etc. For industrial use, those phytochemicals could be extracted from the selected plant and used for the preparation of nutraceuticals and food additives. S. rebaudiana is a natural herb; therefore, it has fewer or minimal adverse effects on human health. The selected plant in various forms is used for the treatment of diabetes, colon cancer, obesity, cavities, and others. However, the literature review shows that the information on this plant and its uses is not systematic. The purpose of the present review is to explore the status of phytochemicals and biological activities of the selected plant for young researchers. Therefore, the updated data will help them to develop new nutraceuticals and food additives that could help in the production of pharmaceuticals to treat different ailments.
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Petkova T, Doykina P, Alexieva I, Mihaylova D, Popova A. Characterization of Fruit Sorbet Matrices with Added Value from Zizyphus jujuba and Stevia rebaudiana. Foods 2022; 11:foods11182748. [PMID: 36140880 PMCID: PMC9498022 DOI: 10.3390/foods11182748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 08/25/2022] [Accepted: 09/01/2022] [Indexed: 11/16/2022] Open
Abstract
Sorbets are healthy ice cream alternatives and desired frozen desserts by vegetarians and vegans. This study focuses on assessing the effects of sorbet recipe alteration through the addition of different percentages of Zizyphus jujuba powder. Stevia rebaudiana was used as a sugar substituent. A control sample and five variables were developed. Peaches from the “Laskava” (native Bulgarian) variety were used as the main ingredient. The new sorbet matrices were characterized based on their moisture and ash content, overrun, melting behavior, melting rate, water holding capacity, pH, nutritional data, soluble solids content, titratable acidity, vitamin C content, total phenolic content and antioxidant activity. The microbial load and CIELAB color of the sorbet alternatives was also evaluated. A sensory evaluation revealed the most preferred variant. Panelists evaluated the appearance (n = 6), aroma (n = 5), flavor (n = 5), mouthfeel (n = 7), and aftertaste (n = 5). The soluble solids content varied from 17.50 to 33.03%, the ash content from 0.36 to 5.21%, the moisture content from 63.77 to 80.21%. The studied sorbet matrices have an overrun in the range from 8.11 to 12.32%. Results showed that a potential for the development of peach sorbet matrices with added value and a reasonable consumer acceptability exists. Further research can perfect the recipe and provide a reference for other frozen desserts.
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Affiliation(s)
- Teodora Petkova
- Department of Catering and Nutrition, Economics Faculty, University of Food Technologies, 4002 Plovdiv, Bulgaria
| | - Pavlina Doykina
- Department of Catering and Nutrition, Economics Faculty, University of Food Technologies, 4002 Plovdiv, Bulgaria
| | - Iordanka Alexieva
- Department of Catering and Nutrition, Economics Faculty, University of Food Technologies, 4002 Plovdiv, Bulgaria
| | - Dasha Mihaylova
- Department of Biotechnology, Technological Faculty, University of Food Technologies, 4002 Plovdiv, Bulgaria
- Correspondence:
| | - Aneta Popova
- Department of Catering and Nutrition, Economics Faculty, University of Food Technologies, 4002 Plovdiv, Bulgaria
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Yang Y, Xu M, Wan Z, Yang X. Novel functional properties and applications of steviol glycosides in foods. Curr Opin Food Sci 2022. [DOI: 10.1016/j.cofs.2021.11.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Zhilinskaya N, Atayev M, Ivanchenko O, Kuznetsova T, Musta N, Blandov A. Comparative study of micronutrient content in soft rice beverages based on green and black tea. BIO WEB OF CONFERENCES 2022. [DOI: 10.1051/bioconf/20224802009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Soft beverages based on rice (“rice milk”) are hypoallergenic, increase immunity, supply the body with energy, and normalize the nervous system. Earlier, we developed soft rice beverage recipes based on boiled rice filtrate, green (black) tea water concentrate, stevia extract as a natural sweetener. Physico-chemical analysis of the content of micronutrients in soft rice-tea beverages was carried out. Comparative analysis of content of vitamins E (alpha-tocopherol) and C (ascorbic acid) showed that vitamins are presented in both types of beverages during production, but in different amounts. The rice beverage combined with green tea concentrate contains 1.33 times more potassium ions and 1.13 times less magnesium ions than the beverage based on black tea. The rice beverage combined with black tea contains 3.81 times more sodium ions compared to the beverage based on green tea. There were no significant differences in the number of magnesium ions. Both samples contained traces of manganese and iron ions. The produced soft rice-tea beverages with stevia extract could be recommended as a functional food.
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