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Bouyahya A, Balahbib A, Khalid A, Makeen HA, Alhazmi HA, Albratty M, Hermansyah A, Ming LC, Goh KW, El Omari N. Clinical applications and mechanism insights of natural flavonoids against type 2 diabetes mellitus. Heliyon 2024; 10:e29718. [PMID: 38694079 PMCID: PMC11061711 DOI: 10.1016/j.heliyon.2024.e29718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 04/03/2024] [Accepted: 04/14/2024] [Indexed: 05/03/2024] Open
Abstract
Diabetes is a complex disease that affects a large percentage of the world's population, and it is associated with several risk factors. Self-management poses a significant challenge, but natural sources have shown great potential in providing effective glucose reducing solutions. Flavonoids, a class of bioactive substances found in different natural sources including medicinal plants, have emerged as promising candidates in this regard. Indeed, several flavonoids, including apigenin, arbutin, catechins, and cyanidin, have demonstrated remarkable anti-diabetic properties. The clinical effectiveness of these flavonoids is linked to their potential to decrease blood glucose concentration and increase insulin concentration. Thus, the regulation of certain metabolic pathways such as glycolysis and neoglycogenesis has also been demonstrated. In vitro and in vivo investigations revealed different mechanisms of action related to flavonoid compounds at subcellular, cellular, and molecular levels. The main actions reside in the activation of glycolytic signaling pathways and the inhibition of signaling that promotes glucose synthesis and storage. In this review, we highlight the clinical efficiency of natural flavonoids as well as the molecular mechanisms underlying this effectiveness.
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Affiliation(s)
- Abdelhakim Bouyahya
- Laboratory of Human Pathologies Biology, Department of Biology, Faculty of Sciences, Mohammed V University in Rabat, Rabat 10106, Morocco
- Department of Pharmacy Practice, Faculty of Pharmacy, Universitas Airlangga, 60115 Surabaya, Indonesia
| | - Abdelaali Balahbib
- High Institute of Nursing Professions and Health Techniques of Errachidia, Errachidia, Morocco
| | - Asaad Khalid
- Substance Abuse and Toxicology Research Center, Jazan University, P.O. Box: 114, Jazan, Saudi Arabia
- Medicinal and Aromatic Plants Research Institute, National Center for Research, P.O. Box: 2424, Khartoum-11111, Sudan
| | - Hafiz A. Makeen
- Pharmacy Practice Research Unit, Clinical Pharmacy Department, Faculty of Pharmacy, Jazan University, Jazan, Saudi Arabia
| | - Hassan A. Alhazmi
- Substance Abuse and Toxicology Research Center, Jazan University, P.O. Box: 114, Jazan, Saudi Arabia
- Department of Pharmaceutical Chemistry and Pharmacognosy, College of Pharmacy, Jazan University, P.O. Box 114, Postal Code 45142, Jazan, Saudi Arabia
| | - Mohammed Albratty
- Department of Pharmaceutical Chemistry and Pharmacognosy, College of Pharmacy, Jazan University, P.O. Box 114, Postal Code 45142, Jazan, Saudi Arabia
| | - Andi Hermansyah
- Department of Pharmacy Practice, Faculty of Pharmacy, Universitas Airlangga, 60115 Surabaya, Indonesia
| | - Long Chiau Ming
- Department of Pharmacy Practice, Faculty of Pharmacy, Universitas Airlangga, 60115 Surabaya, Indonesia
- School of Medical and Life Sciences, Sunway University, Sunway City 47500, Malaysia
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Gadong, Brunei Darussalam
| | - Khang Wen Goh
- Faculty of Data Science and Information Technology, INTI International University, Nilai, Malaysia
| | - Nasreddine El Omari
- High Institute of Nursing Professions and Health Techniques of Tetouan, Tetouan, Morocco
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Kemel M, Lahouel A, Zama D, Benayache S, Benayache F. Evaluation of anti-inflammatory, diuretic and oral glucose tolerance activities of phenolic compound-rich fractions of Hammada articulata in Albino Wistar rats. Fitoterapia 2023; 167:105477. [PMID: 37004275 DOI: 10.1016/j.fitote.2023.105477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 03/16/2023] [Accepted: 03/21/2023] [Indexed: 04/03/2023]
Abstract
Hammada articulata is a plant widely used by the locals of the Algerian Sahara for multiple medicinal purposes. However, little was known about its chemical composition and the mechanisms of its bioactivity. For this purpose, the derived extracts [chloroform (CHCl3), ethyl acetate (EtOAc) and n-butanol (n-BuOH)] of the 80% ethanol extract of its aerial parts, were evaluated for their anti-inflammatory, diuretic, and anti-hyperglycemic activities in vivo. A preliminary phytochemical screening of H. articulata extracts showed the presence of a variety of secondary metabolites. RP-HPLC/DAD was used to analyze some fractions obtained by fractionation of the three derived extracts, by column chromatography and chosen because of the abundance and simplicity of their chemical composition. The fractions obtained from EtOAc and n-BuOH extracts showed a particular richness in phenolic compounds mainly naringenin, quercetin, kaempferol, myricetin, and rutin, which were known for their many interesting biological activities. The three derived extracts from H. articulata were assessed for their anti-inflammatory activity in the carrageenan-induced edema model in rats and their diuretic activity using hydrochlorothiazide (HCTZ) as a diuretic reference. All extracts showed considerable anti-inflammatory activity; the highest was registered in the group treated with the n-BuOH extract. However, for the diuretic activity, only the chloroform extract was active, with a diuretic spectrum similar to that of the standard diuretic HCTZ. The anti-hyperglycemic effect was carried out on the three derived extracts administered orally at a dose of 200 mg/kg, using the glucose tolerance test after gavage with the extracts. The EtOAc and n-BuOH extracts showed significant anti-hyperglycemic activity, improving oral glucose tolerance in normal rats.
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Torres-Vanda M, Gutiérrez-Aguilar R. Mexican Plants Involved in Glucose Homeostasis and Body Weight Control: Systematic Review. Nutrients 2023; 15:2070. [PMID: 37432178 DOI: 10.3390/nu15092070] [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: 02/22/2023] [Revised: 03/10/2023] [Accepted: 03/14/2023] [Indexed: 07/12/2023] Open
Abstract
BACKGROUND Obesity is defined as abnormal or excessive fat accumulation, provoking many different diseases, such as obesity and type 2 diabetes. Type 2 diabetes is a chronic-degenerative disease characterized by increased blood glucose levels. Obesity and type 2 diabetes are currently considered public health problems, and their prevalence has increased over the last few years. Because of the high cost involved in the treatment of both diseases, different alternatives have been sought. However, the general population uses medicinal plants, in the form of tea or infusions, to treat different diseases. Therefore, traditional medicine using medicinal plants has been investigated as a possible treatment for type 2 diabetes and body weight control. AIM OF THE STUDY The purpose of this review is to find medicinal plants used in Mexico that could exert their beneficial effect by regulating insulin secretion and body weight control. MATERIAL AND METHOD For the development of this review, Mexican plants used in traditional medicine to treat type 2 diabetes and body weight control were searched in PubMed, Google Scholar, and Scopus. The inclusion criteria include plants that presented a significant reduction in blood glucose levels and/or an increase in insulin secretion. RESULTS We found 306 Mexican plants with hypoglycemic effects. However, plants that did not show evidence of an increase in insulin secretion were eliminated. Finally, only five plants were included in this review: Momordica charantia L. (melón amargo), Cucurbita ficifolia bouché (chilacayote), Coriandrum sativum L. (cilantro), Persea americana Mill. (aguacate) Bidens pilosa (amor seco), including 39 articles in total. Here, we summarized the plant extracts (aqueous and organic) that have previously been reported to present hypoglycemic effects, body weight control, increased secretion and sensitivity of insulin, improvement of pancreatic β cells, and glucose tolerance. Additionally, these effects may be due to different bioactive compounds present in the plants' extracts. CONCLUSION Both in vivo and in vitro studies are required to understand the mechanism of action of these plant extracts regarding insulin secretion to be used as a possible treatment for type 2 diabetes and body weight control in the future.
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Affiliation(s)
- Montserrat Torres-Vanda
- Laboratorio de Investigación en Enfermedades Metabólicas: Obesidad y Diabetes, Hospital Infantil de México "Federico Gómez", Mexico City 06720, Mexico
| | - Ruth Gutiérrez-Aguilar
- Laboratorio de Investigación en Enfermedades Metabólicas: Obesidad y Diabetes, Hospital Infantil de México "Federico Gómez", Mexico City 06720, Mexico
- División de Investigación, Facultad de Medicina, Universidad Nacional Autónoma de México (UNAM), Mexico City 04510, Mexico
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Visco DB, Manhães de Castro R, da Silva MM, Costa de Santana BJR, Bezerra Gouveia HJC, de Moura Ferraz MLR, de Albuquerque GL, Lacerda DC, de Vasconcelos DAA, Guzman Quevedo O, Toscano AE. Neonatal kaempferol exposure attenuates gait and strength deficits and prevents altered muscle phenotype in a rat model of cerebral palsy. Int J Dev Neurosci 2023; 83:80-97. [PMID: 36342836 DOI: 10.1002/jdn.10239] [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: 06/11/2022] [Revised: 08/10/2022] [Accepted: 08/12/2022] [Indexed: 11/09/2022] Open
Abstract
Cerebral palsy (CP) is characterized by brain damage at a critical period of development of the central nervous system, and, as a result, motor, behavioural and learning deficits are observed in those affected. Flavonoids such as kaempferol have demonstrated potential anti-inflammatory and neuroprotective properties for neurological disorders. This study aimed to assess the effects of neonatal treatment with kaempferol on the body development, grip strength, gait performance and morphological and biochemical phenotype of skeletal muscle in rats subjected to a model of CP. The groups were formed by randomly allocating male Wistar rats after birth to four groups as follows: C = control treated with vehicle, K = control treated with kaempferol, CP = CP treated with vehicle and CPK = CP treated with kaempferol. The model of CP involved perinatal anoxia and sensorimotor restriction of the hind paws during infancy, from the second to the 28th day of postnatal life. Treatment with kaempferol (1 mg/kg) was performed intraperitoneally during the neonatal period. Body weight and length, muscle strength, gait kinetics and temporal and spatial parameters were evaluated in the offspring. On the 36th day of postnatal life, the animals were euthanized for soleus muscle dissection. The muscle fibre phenotype was assessed using the myofibrillar ATPase technique, and the muscle protein expression was measured using the Western blot technique. A reduction in the impact of CP on body phenotype was observed, and this also attenuated deficits in muscle strength and gait. Treatment also mitigated the impact on muscle phenotype by preventing a reduction in the proportion of oxidative fibres and in the histomorphometric parameters in the soleus muscle of rats in the CP group. The results demonstrate that neonatal treatment with kaempferol attenuated gait deficits and impaired muscle strength and muscle maturation in rats subjected to a model of CP.
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Affiliation(s)
- Diego Bulcão Visco
- Laboratory of Neurofunctional, Department of Biological Science and Health, Federal University of Amapá, Macapá, Brazil.,Postgraduate Program in Nutrition (Posnutri), Health Sciences Center, Federal University of Pernambuco, Recife, Brazil.,Studies in Nutrition and Phenotypic Plasticity Unit, Department of Nutrition, Federal University of Pernambuco, Recife, Brazil
| | - Raul Manhães de Castro
- Postgraduate Program in Nutrition (Posnutri), Health Sciences Center, Federal University of Pernambuco, Recife, Brazil.,Studies in Nutrition and Phenotypic Plasticity Unit, Department of Nutrition, Federal University of Pernambuco, Recife, Brazil
| | - Márcia Maria da Silva
- Postgraduate Program in Nutrition (Posnutri), Health Sciences Center, Federal University of Pernambuco, Recife, Brazil.,Studies in Nutrition and Phenotypic Plasticity Unit, Department of Nutrition, Federal University of Pernambuco, Recife, Brazil
| | - Bárbara Juacy Rodrigues Costa de Santana
- Studies in Nutrition and Phenotypic Plasticity Unit, Department of Nutrition, Federal University of Pernambuco, Recife, Brazil.,Postgraduate Program in Neuropsychiatry and Behavioral Sciences (Posneuro), Federal University of Pernambuco, Recife, Brazil
| | - Henrique José Cavalcanti Bezerra Gouveia
- Postgraduate Program in Nutrition (Posnutri), Health Sciences Center, Federal University of Pernambuco, Recife, Brazil.,Studies in Nutrition and Phenotypic Plasticity Unit, Department of Nutrition, Federal University of Pernambuco, Recife, Brazil
| | | | - Glayciele Leandro de Albuquerque
- Studies in Nutrition and Phenotypic Plasticity Unit, Department of Nutrition, Federal University of Pernambuco, Recife, Brazil.,Postgraduate Program in Neuropsychiatry and Behavioral Sciences (Posneuro), Federal University of Pernambuco, Recife, Brazil
| | - Diego Cabral Lacerda
- Studies in Nutrition and Phenotypic Plasticity Unit, Department of Nutrition, Federal University of Pernambuco, Recife, Brazil
| | - Diogo Antonio Alves de Vasconcelos
- Postgraduate Program in Nutrition (Posnutri), Health Sciences Center, Federal University of Pernambuco, Recife, Brazil.,Studies in Nutrition and Phenotypic Plasticity Unit, Department of Nutrition, Federal University of Pernambuco, Recife, Brazil
| | - Omar Guzman Quevedo
- Studies in Nutrition and Phenotypic Plasticity Unit, Department of Nutrition, Federal University of Pernambuco, Recife, Brazil.,Instituto Tecnológico Superior de Tacámbaro, Tacámbaro, Mexico.,Centro de Investigación Biomédica de Michoacán, Instituto Mexicano del Seguro Social, Morelia, Mexico.,Postgraduate Program in Neuropsychiatry and Behavioral Sciences (Posneuro), Federal University of Pernambuco, Recife, Brazil
| | - Ana Elisa Toscano
- Postgraduate Program in Nutrition (Posnutri), Health Sciences Center, Federal University of Pernambuco, Recife, Brazil.,Studies in Nutrition and Phenotypic Plasticity Unit, Department of Nutrition, Federal University of Pernambuco, Recife, Brazil.,Nursing Unit, Vitória Academic Center, Federal University of Pernambuco, Vitória de Santo Antão, Brazil.,Postgraduate Program in Neuropsychiatry and Behavioral Sciences (Posneuro), Federal University of Pernambuco, Recife, Brazil
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Adzuki Bean MY59 Extract Reduces Insulin Resistance and Hepatic Steatosis in High-Fat-Fed Mice via the Downregulation of Lipocalin-2. Nutrients 2022; 14:nu14235049. [PMID: 36501079 PMCID: PMC9739659 DOI: 10.3390/nu14235049] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 11/25/2022] [Accepted: 11/25/2022] [Indexed: 11/29/2022] Open
Abstract
Adzuki bean is well known as a potential functional food that improves metabolic complications from obesity and diabetes. Lipocalin-2 (LCN2) has been implicated to have an important role in obesity and diabetes. However, the protective roles of adzuki bean MY59 extract (ABE) on insulin resistance and hepatic steatosis are not fully understood. In the present study, we investigated the effects of ABE on LCN2 expression in high-fat diet (HFD)-fed mice. ABE reduced HFD-induced fat mass and improved insulin resistance. In addition to hepatic steatosis, HFD-fed mice showed many apoptotic cells and neutrophils in the epididymal fat pads. However, these findings were significantly reduced by ABE supplementation. In particular, we found that increased LCN2 proteins from serum, epididymal fat pads, and liver in HFD-fed mice are significantly reduced by ABE. Furthermore, ABE reduced increased heme oxygenase-1 and superoxide dismutase-1 expressions in adipose tissue and liver in HFD-fed mice. We found that hepatic nuclear factor-kappa B (NF-κB) p65 expression in HFD-fed mice was also reduced by ABE. Thus, these findings indicate that ABE feeding could improve insulin resistance and hepatic steatosis by decreasing LCN2-mediated inflammation and oxidative stress in HFD-fed mice.
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Li X, Geng-Ji JJ, Quan YY, Qi LM, Sun Q, Huang Q, Jiang HM, Sun ZJ, Liu HM, Xie X. Role of potential bioactive metabolites from traditional Chinese medicine for type 2 diabetes mellitus: An overview. Front Pharmacol 2022; 13:1023713. [PMID: 36479195 PMCID: PMC9719995 DOI: 10.3389/fphar.2022.1023713] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Accepted: 11/07/2022] [Indexed: 11/14/2023] Open
Abstract
Type 2 diabetes mellitus (T2DM) is a metabolic disease with persistent hyperglycemia primarily caused by insulin resistance (IR). The number of diabetic patients globally has been rising over the past decades. Although significant progress has been made in treating diabetes mellitus (DM), existing clinical drugs for diabetes can no longer fully meet patients when they face complex and huge clinical treatment needs. As a traditional and effective medical system, traditional Chinese medicine (TCM) has a unique understanding of diabetes treatment and has developed many classic and practical prescriptions targeting DM. With modern medicine and pharmacy advancements, researchers have discovered that various bioactive metabolites isolated from TCM show therapeutic on DM. Compared with existing clinical drugs, these bioactive metabolites demonstrate promising prospects for treating DM due to their excellent biocompatibility and fewer adverse reactions. Accordingly, these valuable metabolites have attracted the interest of researchers worldwide. Despite the abundance of research works and specialized-topic reviews published over the past years, there is a lack of updated and systematic reviews concerning this fast-growing field. Therefore, in this review, we summarized the bioactive metabolites derived from TCM with the potential treatment of T2DM by searching several authoritative databases such as PubMed, Web of Science, Wiley Online Library, and Springer Link. For the convenience of readers, the content is divided into four parts according to the structural characteristics of these valuable compounds (flavonoids, terpenoids, alkaloids, and others). Meanwhile, the detailed mechanism and future directions of these promising compounds curing DM are also summarized in the related sections. We hope this review inspires increasingly valuable and significant research focusing on potential bioactive metabolites from TCM to treat DM in the future.
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Affiliation(s)
- Xiang Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, State Administration of Traditional Chinese Medicine Key Laboratory of Traditional Chinese Medicine Regimen and Health, School of Pharmacy and College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jia-Jia Geng-Ji
- State Key Laboratory of Southwestern Chinese Medicine Resources, State Administration of Traditional Chinese Medicine Key Laboratory of Traditional Chinese Medicine Regimen and Health, School of Pharmacy and College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yun-Yun Quan
- Translational Chinese Medicine Key Laboratory of Sichuan Province, Sichuan Academy of Chinese Medicine Sciences, Sichuan Institute for Translational Chinese Medicine, Chengdu, Sichuan, China
| | - Lu-Ming Qi
- State Key Laboratory of Southwestern Chinese Medicine Resources, State Administration of Traditional Chinese Medicine Key Laboratory of Traditional Chinese Medicine Regimen and Health, School of Pharmacy and College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Qiang Sun
- Department of Pharmacy, Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Qun Huang
- Department of Ophthalmology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Hai-Mei Jiang
- State Key Laboratory of Southwestern Chinese Medicine Resources, State Administration of Traditional Chinese Medicine Key Laboratory of Traditional Chinese Medicine Regimen and Health, School of Pharmacy and College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Zi-Jian Sun
- Sichuan Ant Recommendation Biotechnology Co., Ltd., Chengdu, Sichuan, China
| | - Hong-Mei Liu
- Department of Pharmacy, Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Xin Xie
- State Key Laboratory of Southwestern Chinese Medicine Resources, State Administration of Traditional Chinese Medicine Key Laboratory of Traditional Chinese Medicine Regimen and Health, School of Pharmacy and College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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Zhu X, Wang L, Zhao T, Jiang Q. Traditional uses, phytochemistry, pharmacology, and toxicity of Eriobotrya japonica leaves: A summary. JOURNAL OF ETHNOPHARMACOLOGY 2022; 298:115566. [PMID: 35870687 DOI: 10.1016/j.jep.2022.115566] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 07/02/2022] [Accepted: 07/15/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Eriobotrya japonica Lindl. has been included in "The Plant List" (http://www.theplantlist.org) and is the most widely researched species in its genus. E. japonica is a subtropical evergreen fruit tree belonging to the Rosaceae family. Its dried leaves are widely used in traditional Chinese herbal medicine to treat coughing caused by pulmonary inflammation, dyspnea due to asthma and cough, nausea caused by stomach disorders, restlessness, and thirst. Furthermore, it is used to treat stomach ache, ulcers, chronic bronchitis, cancer, and diabetes mellitus in Japanese folk medicine. However, no systematic reports on E. japonica leaves have been published before. AIM OF THE STUDY This review summarizes the available information on the traditional uses, phytochemistry, pharmacology, toxicity, and quality control of various extracts and phytoconstituents of E. japonica leaves. MATERIALS AND METHODS Relevant publications between 1931 and 2022 were considered. Chinese and English studies on E. japonica leaves were collected from databases, including PubMed, Web of Science, Elsevier, ACS Publications, Springer, and CNKI (Chinese). The traditional uses, phytochemistry, pharmacology, toxicity, and quality control of E. japonica leaves were reviewed. RESULTS Briefly, 164 compounds, including triterpenes, flavonoids, sesquiterpene glycosides, megastigmane derivatives, phenylpropanoids, and organic acids, have been identified from E. japonica leaves, in addition to 169 volatile oils. More than half of these compounds have not yet been reported to have pharmacological activities. Triterpenes and flavonoids are the most important bioactive compounds responsible for pharmacological activities, such as antidiabetic, anti-inflammatory, and antitumor activities. Other beneficial physiological effects such as antioxidant, hepatoprotective, bronchodilatory, antitussive, and expectorant effects and tracheal smooth muscle relaxation, protection against myocardial ischemia injury, and improved cognitive activities have also been reported. High doses of E. japonica leaf extracts have been used in laboratory animals, and no side effects or toxicity-symptoms have been observed. CONCLUSIONS The pharmacological activities of E. japonica leaves support their use in traditional Chinese herbal medicine. However, several aspects, such as the bioavailability, pharmacodynamics, pharmacokinetics, mechanism of action, and structure-activity relationships of the pure compounds isolated from E. japonica leaves, have not been studied yet and warrant further studies.
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Affiliation(s)
- Xu Zhu
- Department of Pharmacy, Shengjing Hospital of China Medical University, Shenyang, 110004, China.
| | - Lin Wang
- School of Pharmacy, China Medical University, Shenyang, 110122, China.
| | - Tie Zhao
- Department of Pharmacy, Shengjing Hospital of China Medical University, Shenyang, 110004, China.
| | - Qinghua Jiang
- Department of Pharmacy, Shengjing Hospital of China Medical University, Shenyang, 110004, China.
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Vidana Gamage GC, Lim YY, Choo WS. Anthocyanins From Clitoria ternatea Flower: Biosynthesis, Extraction, Stability, Antioxidant Activity, and Applications. FRONTIERS IN PLANT SCIENCE 2021; 12:792303. [PMID: 34975979 PMCID: PMC8718764 DOI: 10.3389/fpls.2021.792303] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Accepted: 11/25/2021] [Indexed: 05/02/2023]
Abstract
Clitoria ternatea plant is commonly grown as an ornamental plant and possesses great medicinal value. Its flower is edible and also known as blue pea or butterfly pea flower. The unique feature of anthocyanins present in blue pea flowers is the high abundance of polyacylated anthocyanins known as ternatins. Ternatins are polyacylated derivatives of delphinidin 3,3',5'-triglucoside. This review covers the biosynthesis, extraction, stability, antioxidant activity, and applications of anthocyanins from Clitoria ternatea flower. Hot water extraction of dried or fresh petals of blue pea flower could be employed successfully to extract anthocyanins from blue pea flower for food application. Blue pea flower anthocyanins showed good thermal and storage stability, but less photostability. Blue pea flower anthocyanins also showed an intense blue colour in acidic pH between pH 3.2 to pH 5.2. Blue pea flower anthocyanin extracts demonstrate significant in vitro and cellular antioxidant activities. Blue pea flower anthocyanins could be used as a blue food colourant in acidic and neutral foods. The incorporation of blue pea flower anthocyanins in food increased the functional properties of food such as antioxidant and antimicrobial properties. Blue pea flower anthocyanins have also been used in intelligent packaging. A comparison of blue pea flower anthocyanins with two other natural blue colouring agents used in the food industry, spirulina or phycocyanin and genipin-derived pigments is also covered. Anthocyanins from blue pea flowers are promising natural blue food colouring agent.
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Affiliation(s)
| | | | - Wee Sim Choo
- School of Science, Monash University Malaysia, Subang Jaya, Malaysia
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Menezes TM, de Souza Franco E, de Almeida Sousa Lima LC, de Souza Pereira ÁM, de Santos Lima LW, Quixabeira CMT, da Silva JF, Cahu TB, de Souza Bezerra R, Lira EC, Militão GCG, de Sousa Maia MB. Non-clinical repeated dose 28-day oral toxicity, reproductive toxicity and cytotoxicity studies of the polar fraction of Parkinsonia aculeata aerial parts extract. Toxicol Res (Camb) 2021; 10:792-799. [PMID: 34484670 DOI: 10.1093/toxres/tfab052] [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: 11/03/2020] [Revised: 04/06/2021] [Accepted: 01/05/2021] [Indexed: 11/14/2022] Open
Abstract
This study was aimed to evaluate toxicity in repeated doses for 28 days, reproductive toxicity and cytotoxicity of a polar fraction obtained from the hydroethanolic extract of Parkinsonia aculeata (PfrHEPA) in experimental models. To perform the toxicity test in repeated doses for 28 days, male and female Wistar rats were treated via orogastric for 28 days with PfrHEPA (35, 70 or 140 mg/kg) according to the guidelines established by the Organisation for Economic Co-operation and Development (OECD) number 407 (1995). For assessment, the impact of PfrHEPA on the reproductive output various parameters were measured, including maternal weight, no. of pregnant females, female fertility index (%), gestation lengthtime, implantation sites, litter size and placental index of test animals. The cytotoxicity of PfrHEPA was performed on the tumor lines NCI-H292 (human lung carcinoma), HL-60 (human promyelocytic leukemia) and HCT-116 (colorectal cancer). In the repeated dose toxicity test for 28 days, no mortality was observed in the male and female rats treated with PfrHEPA as well as morphological changes and biochemical and hematological parameters. In the reproductive toxicity test, no abnormalities were observed related to the toxicological parameters in both mothers and offspring. Regarding the cytotoxicity assay, the PfrHEPA fraction did not demonstrate significant cytotoxic effect on the cell lines analyzed. The present results suggest the use of PfrHEPA is safe and well tolerated in rats. Further studies are planned to identify and purify the active compounds for subsequent in vivo evaluation.
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Affiliation(s)
- Tamires Meira Menezes
- Department of Physiology and Pharmacology, Federal University of Pernambuco, (UFPE), Av. Prof. Moraes Rego, 1235; Cidade Universitária, 50670-901 Recife - PE, Brazil
| | - Eryvelton de Souza Franco
- Department of Veterinary Medicine, Brazilian University Center, (UNIBRA), R. Padre Inglês, 257 Boa Vista - Recife/PE - CEP: 50050-230 Recife - PE, Brazil
| | - Larissa Caroline de Almeida Sousa Lima
- Department of Physiology and Pharmacology, Federal University of Pernambuco, (UFPE), Av. Prof. Moraes Rego, 1235; Cidade Universitária, 50670-901 Recife - PE, Brazil
| | - Áurea Marcela de Souza Pereira
- Department of Physiology and Pharmacology, Federal University of Pernambuco, (UFPE), Av. Prof. Moraes Rego, 1235; Cidade Universitária, 50670-901 Recife - PE, Brazil
| | - Laísa Wanessa de Santos Lima
- Department of Physiology and Pharmacology, Federal University of Pernambuco, (UFPE), Av. Prof. Moraes Rego, 1235; Cidade Universitária, 50670-901 Recife - PE, Brazil
| | - Carla Mirele Tabósa Quixabeira
- Department of Physiology and Pharmacology, Federal University of Pernambuco, (UFPE), Av. Prof. Moraes Rego, 1235; Cidade Universitária, 50670-901 Recife - PE, Brazil
| | - Janilson Felix da Silva
- Department of Biochemistry, Federal University of Pernambuco, (UFPE), Av. Prof. Moraes Rego, 1235; Cidade Universitária, 50670-901 Recife - PE, Brazil
| | - Thiago Barbosa Cahu
- Department of Biochemistry, Federal University of Pernambuco, (UFPE), Av. Prof. Moraes Rego, 1235; Cidade Universitária, 50670-901 Recife - PE, Brazil
| | - Ranilson de Souza Bezerra
- Department of Biochemistry, Federal University of Pernambuco, (UFPE), Av. Prof. Moraes Rego, 1235; Cidade Universitária, 50670-901 Recife - PE, Brazil
| | - Eduardo Carvalho Lira
- Department of Physiology and Pharmacology, Federal University of Pernambuco, (UFPE), Av. Prof. Moraes Rego, 1235; Cidade Universitária, 50670-901 Recife - PE, Brazil
| | - Gardênia Carmen Gadelha Militão
- Department of Physiology and Pharmacology, Federal University of Pernambuco, (UFPE), Av. Prof. Moraes Rego, 1235; Cidade Universitária, 50670-901 Recife - PE, Brazil
| | - Maria Bernadete de Sousa Maia
- Department of Physiology and Pharmacology, Federal University of Pernambuco, (UFPE), Av. Prof. Moraes Rego, 1235; Cidade Universitária, 50670-901 Recife - PE, Brazil
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10
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Moroccan antidiabetic medicinal plants: Ethnobotanical studies, phytochemical bioactive compounds, preclinical investigations, toxicological validations and clinical evidences; challenges, guidance and perspectives for future management of diabetes worldwide. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.03.032] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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11
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Rey D, Fernandes TA, Sulis PM, Gonçalves R, Sepúlveda R M, Silva Frederico MJ, Aragon M, Ospina LF, Costa GM, Silva FRMB. Cellular target of isoquercetin from Passiflora ligularis Juss for glucose uptake in rat soleus muscle. Chem Biol Interact 2020; 330:109198. [PMID: 32692981 DOI: 10.1016/j.cbi.2020.109198] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 06/18/2020] [Accepted: 07/13/2020] [Indexed: 11/19/2022]
Abstract
Quercetin 3-O-beta-d-glucopyranoside (isoquercetin) is one of the most frequent metabolites of the Passiflora ligularis Juss. The purpose of this study was to investigate the effect of the aqueous extract and ethanol fraction from P. ligularis Juss leaves on glycaemia and the mechanism of action of isoquercetin on glucose uptake. In the glucose tolerance test, the aqueous extract and ethanol fraction from P. ligularis Juss (125 mg/kg to 500 mg/kg o. g.) reduced glycaemia and increased the hepatic and muscular glycogen content. Phytochemical analysis evidenced the dominant presence of isoquercetin in the extract and fraction from leaves of P. ligularis Juss. Isoquercetin mediates the stimulatory effect on glucose uptake independent of insulin receptor activation but, involve PI3K, MAPK, MEK/ERK pathways and de novo protein synthesis to GLUT-4 translocation. Overall findings revealed that isoquercetin and aqueous extract and ethanol fraction of P. ligularis Juss leaves might be a promising functional food or medicine for the treatment or prevention of diabetes.
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Affiliation(s)
- Diana Rey
- Universidad Nacional de Colombia, Departamento de Farmácia, Facultad de Ciencias, Cra. 30 45-03, 111321, Bogotá, DC, Colombia
| | - Thaís Alves Fernandes
- Universidade Federal de Santa Catarina, Departamento de Bioquímica - Centro de Ciências Biológicas, Campus Universitário, Bairro Trindade, Cx. Postal 5069, CEP: 88040-970, Florianópolis, SC, Brazil
| | - Paola Miranda Sulis
- Universidade Federal de Santa Catarina, Departamento de Bioquímica - Centro de Ciências Biológicas, Campus Universitário, Bairro Trindade, Cx. Postal 5069, CEP: 88040-970, Florianópolis, SC, Brazil
| | - Renata Gonçalves
- Universidade Federal de Santa Catarina, Departamento de Bioquímica - Centro de Ciências Biológicas, Campus Universitário, Bairro Trindade, Cx. Postal 5069, CEP: 88040-970, Florianópolis, SC, Brazil
| | - Michelle Sepúlveda R
- Universidad Nacional de Colombia, Departamento de Farmácia, Facultad de Ciencias, Cra. 30 45-03, 111321, Bogotá, DC, Colombia
| | - Marisa Jádna Silva Frederico
- Universidade Federal do Ceará, Departamento de Farmacologia e Fisiologia, Faculdade de Medicina, Núcleo de Pesquisa e Desenvolvimento de Medicamentos, Rua Coronel Nunes de Melo, 1000 - Rodolfo Teófilo, Fortaleza, CE, 60430-275, Brazil
| | - Marcela Aragon
- Universidad Nacional de Colombia, Departamento de Farmácia, Facultad de Ciencias, Cra. 30 45-03, 111321, Bogotá, DC, Colombia
| | - Luís Fernando Ospina
- Universidad Nacional de Colombia, Departamento de Farmácia, Facultad de Ciencias, Cra. 30 45-03, 111321, Bogotá, DC, Colombia
| | - Geison M Costa
- Pontificia Universidad Javeriana, Departamento de Química, Facultad de Ciencias, Carrera 7 43-82, Edificio Carlos Ortiz (52), Oficina 617, 110231, Bogotá, DC, Colombia
| | - Fátima Regina Mena Barreto Silva
- Universidade Federal de Santa Catarina, Departamento de Bioquímica - Centro de Ciências Biológicas, Campus Universitário, Bairro Trindade, Cx. Postal 5069, CEP: 88040-970, Florianópolis, SC, Brazil.
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12
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Menezes TM, Gaião WDC, de Almeida Sousa Lima LC, da Silva AKB, Lima LWS, de Souza Pereira ÁM, da Silva LC, da Silva VL, de Souza Franco E, Paz ST, Maia CS, da Silva TMS, de Sousa Maia MB. Evaluation of acute oral toxicity, embryotoxicity and cytotoxicity of the polar fraction of Parkinsonia aculeata aerial parts extract. Toxicol Res (Camb) 2020; 9:19-27. [PMID: 32440335 DOI: 10.1093/toxres/tfz002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Accepted: 11/28/2019] [Indexed: 11/12/2022] Open
Abstract
Ethnopharmacobotanical information reports that Parkinsonia aculeata infusion is used to control diabetes-related complications and dyslipidemia. However, few studies are reported on the safe use of this species. The aim of this study is to evaluate the acute toxicity, embryotoxicity and cytotoxicity of a polar fraction obtained from hydroethanolic extract of P. aculeata (PfrHEPA). For the acute toxicity test, we considered the Up and Down method which the guidelines are described by the Organization for Economic Cooperation and Development (OECD N°425). The animals were treated with PfrHEPA (2000 mg/kg) or with distilled water (10 ml/kg) by gavage and observed from Day 1 to14. For embryotoxicity assay, zebrafish embryos were exposed to PfrHEPA (100 mg/L) and toxicity parameters were observed during four consecutive days. The cytotoxicity of PfrHEPA (5, 10, 25, 50, 75 and 100 μg/ml, respectively) was performed on normal cell lines (mesenchymal stem cells, African green monkey renal cells and mouse pre-adipocytes 3 T3-L1 using the MTT salt reduction assay. In the acute toxicity test, no mortality was observed in mice treated with PfrHEPA (2000 mg/kg), as well as behavioral changes, histopathological abnormalities and hematological and biochemical variables. In the embryotoxicity test, no abnormal changes related to the toxicological parameters were observed in the period of 96 h. Regarding the cytotoxicity assay, PfrHEPA showed no cytotoxic effect on the normal cell lines tested, with an IC50 value > 100 μg/ml. These results suggest the safe use of P. aculeata, however, more trials are needed for PfrHEPA to be presented as new safe therapeutic proposal for the control of metabolic disorders.
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Affiliation(s)
- Tamires Meira Menezes
- Department of Physiology and Pharmacology, Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | | | | | | | - Laísa Wanessa Santos Lima
- Department of Physiology and Pharmacology, Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | | | - Luciano Clemente da Silva
- Department of Physiology and Pharmacology, Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | - Valdir Luna da Silva
- Department of Physiology and Pharmacology, Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | | | - Silvania Tavares Paz
- Department of Pathology, Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | - Carina Scanoni Maia
- Department of Histology and Embryology, Federal University of Pernambuco, Recife, Pernambuco, Brazil
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Antioxidant Effects and Mechanisms of Medicinal Plants and Their Bioactive Compounds for the Prevention and Treatment of Type 2 Diabetes: An Updated Review. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:1356893. [PMID: 32148647 PMCID: PMC7042557 DOI: 10.1155/2020/1356893] [Citation(s) in RCA: 94] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 12/31/2019] [Accepted: 01/16/2020] [Indexed: 12/14/2022]
Abstract
Diabetes mellitus is a metabolic disorder that majorly affects the endocrine gland, and it is symbolized by hyperglycemia and glucose intolerance owing to deficient insulin secretory responses and beta cell dysfunction. This ailment affects as many as 451 million people worldwide, and it is also one of the leading causes of death. In spite of the immense advances made in the development of orthodox antidiabetic drugs, these drugs are often considered not successful for the management and treatment of T2DM due to the myriad side effects associated with them. Thus, the exploration of medicinal herbs and natural products as therapeutic sources for the treatment of T2DM is promoted because they have little or no side effects. Bioactive molecules isolated from natural sources have been proven to lower blood glucose levels via regulating one or more of the following mechanisms: improvement of beta cell function, insulin resistance, glucose (re)absorption, and glucagon-like peptide-1 homeostasis. In recent times, the mechanisms of action of different bioactive molecules with antidiabetic properties and phytochemistry are gaining a lot of attention in the area of drug discovery. This review article presents an update of the findings from clinical research into medicinal plant therapy for T2DM.
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Jasmin, Jaitak V. A Review on Molecular Mechanism of Flavonoids as Antidiabetic Agents. Mini Rev Med Chem 2019; 19:762-786. [DOI: 10.2174/1389557519666181227153428] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 12/17/2018] [Accepted: 12/18/2018] [Indexed: 02/06/2023]
Abstract
The development of drugs possessing anti-diabetic activities is a long pursued goal in drug
discovery. It has been shown that deregulated insulin mediated signaling, oxidative stress, obesity, and
β-cell dysfunction are the main factors responsible for the disease. With the advent of new and more
powerful screening assays and prediction tools, the idea of a drug that can effectively treat diabetes by
targeting different pathways has re-bloomed. Current anti-diabetic therapy is based on synthetic drugs
that very often have side effects. For this reason, there is an instantaneous need to develop or search
new alternatives. Recently, more attention is being paid to the study of natural products. Their huge
advantage is that they can be ingested in everyday diet. Here, we discuss various causes, putative targets,
and treatment strategies, mechanistic aspects as well as structural features with a particular focus
on naturally occurring flavonoids as promising starting points for anti-diabetic led development.
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Affiliation(s)
- Jasmin
- Laboratory of Natural Products, Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Bathinda (Pb.) 151001, India
| | - Vikas Jaitak
- Laboratory of Natural Products, Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Bathinda (Pb.) 151001, India
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López Prado AS, Shen Y, Ardoin R, Osorio LF, Cardona J, Xu Z, Prinyawiwatkul W. Effects of different solvents on total phenolic and total anthocyanin contents ofClitoria ternatea L. petal and their anti-cholesterol oxidation capabilities. Int J Food Sci Technol 2018. [DOI: 10.1111/ijfs.13953] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Adriana S. López Prado
- School of Nutrition and Food Sciences; Louisiana State University Agricultural Center; Baton Rouge LA 70803-4200 USA
- Food Science and Technology Department; Panamerican School of Agriculture Zamorano; Municipality of San Antonio de Oriente, Francisco Morazan; Honduras, C.A
| | - Yixiao Shen
- School of Nutrition and Food Sciences; Louisiana State University Agricultural Center; Baton Rouge LA 70803-4200 USA
| | - Ryan Ardoin
- School of Nutrition and Food Sciences; Louisiana State University Agricultural Center; Baton Rouge LA 70803-4200 USA
| | - Luis F. Osorio
- Food Science and Technology Department; Panamerican School of Agriculture Zamorano; Municipality of San Antonio de Oriente, Francisco Morazan; Honduras, C.A
| | - Jorge Cardona
- Food Science and Technology Department; Panamerican School of Agriculture Zamorano; Municipality of San Antonio de Oriente, Francisco Morazan; Honduras, C.A
| | - Zhimin Xu
- School of Nutrition and Food Sciences; Louisiana State University Agricultural Center; Baton Rouge LA 70803-4200 USA
| | - Witoon Prinyawiwatkul
- School of Nutrition and Food Sciences; Louisiana State University Agricultural Center; Baton Rouge LA 70803-4200 USA
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16
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Castro AJG, Cazarolli LH, da Luz G, Altenhofen D, da Silva HB, de Carvalho FK, Pizzolatti MG, Silva FRMB. Fern-9(11)-ene-2α,3β-diol Action on Insulin Secretion under Hyperglycemic Conditions. Biochemistry 2018; 57:3894-3902. [PMID: 29792023 DOI: 10.1021/acs.biochem.8b00302] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The objective of this study was to investigate the effect and the mechanism of action of fernenediol as an insulin secretagogue. Wistar rats were treated with 0.1, 1, and 10 mg/kg fernenediol before inducing hyperglycemia by oral glucose. The glycaemia, insulin, LDH, calcium, and hepatic glycogen were analyzed. Considering the intestine and pancreas as targets for the triterpene action, the duodenum was used to verify the influence of fernenediol on intestinal glycosidases. Additionally, pancreatic islets were used for studies of 14C-deoxyglucose uptake and the influx of 45Ca2+ in hyperglycemic media with/without fernenediol in the presence/absence of an inhibitor/activator of KATP channels, glibenclamide, diazoxide, nifedipine, calcium chelator (BAPTA-AM), and H-89 and ST, the inhibitors of the PKA and PKC enzymes. Fernenediol significantly reduced glycaemia, potentiated glucose-induced insulin secretion, and stimulated liver glycogen deposition in hyperglycemic rats after an in vivo treatment without changing intestinal disaccharidases activities and showing no influence on intestinal glucose absorption. Also, it stimulated the glucose uptake and calcium influx in pancreatic islets. The involvement of voltage-dependent L-type calcium channels and ATP-dependent potassium channels and the release of calcium from intracellular stores are mandatory for the stimulatory effect of fernenediol on calcium influx. Fernenediol did not change PKA and PKC activities or modify calcium levels. This triterpene is a potent antihyperglycemic agent with a strong insulin secretagogue effect on glycogen accumulation as well. As a whole, this compound presents significant perspectives as a future new drug for the treatment of insulin resistance and/or diabetes.
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Affiliation(s)
- Allisson Jhonatan Gomes Castro
- Departamento de Bioquímica, Centro de Ciências Biológicas , Universidade Federal de Santa Catarina , Florianópolis , SC 88040-900 , Brazil
| | | | - Gabrielle da Luz
- Departamento de Bioquímica, Centro de Ciências Biológicas , Universidade Federal de Santa Catarina , Florianópolis , SC 88040-900 , Brazil
| | - Delsi Altenhofen
- Departamento de Bioquímica, Centro de Ciências Biológicas , Universidade Federal de Santa Catarina , Florianópolis , SC 88040-900 , Brazil
| | - Hemily Batista da Silva
- Departamento de Bioquímica, Centro de Ciências Biológicas , Universidade Federal de Santa Catarina , Florianópolis , SC 88040-900 , Brazil
| | - Francieli Kanumfre de Carvalho
- Departamento de Química , Centro de Ciências Físicas e Matemáticas, Universidade Federal de Santa Catarina , Florianópolis , SC 88040-900 , Brazil
| | - Moacir Geraldo Pizzolatti
- Departamento de Química , Centro de Ciências Físicas e Matemáticas, Universidade Federal de Santa Catarina , Florianópolis , SC 88040-900 , Brazil
| | - Fátima Regina Mena Barreto Silva
- Departamento de Bioquímica, Centro de Ciências Biológicas , Universidade Federal de Santa Catarina , Florianópolis , SC 88040-900 , Brazil
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Tang X, Olatunji OJ, Zhou Y, Hou X. Allium tuberosum: Antidiabetic and hepatoprotective activities. Food Res Int 2017; 102:681-689. [PMID: 29196001 DOI: 10.1016/j.foodres.2017.08.034] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 08/12/2017] [Accepted: 08/13/2017] [Indexed: 01/13/2023]
Abstract
Allium tuberosum (AT) is traditionally used for treating nocturnal emissions, abdominal pain, diarrhea, sexual dysfunction and asthma. This study aimed at investigating the antidiabetic and hepatoprotective activities of the butyl alcohol fraction from the methanolic extract of A. tuberosum. For the antidiabetic activity, rats were induced with diabetes by intraperitoneal injection of 150mg/kg alloxan and treated for 30days with AT extract (100, 200 and 400mg/kg). Animals were sacrificed after the study and the fasting blood glucose (FBG), triglyceride (TG), total cholesterol (TC), HDL, malondialdehyde (MDA) catalase, superoxide dismutase and glutathione levels were determined. The hepatoprotective assay, mice were pretreated for seven days with AT (100, 200 and 400mg/kg) and silymarin (100mg/kg or). Thereafter 10ml/kg of 2% v/v CCl4 was administered intraperitoneally on the 7th day to induce acute liver injury. Blood and liver samples were obtained and serum enzymes ALT, AST, ALP, SOD, GSH, CAT, MDA and pro-inflammatory mediators were assessed. AT significantly decrease FBG, serum TG, TC, MDA levels and significant increased HDL, SOD, GSH and CAT activities in the diabetic rats. In addition, AT significantly inhibited MDA, IL-1b, IL-6 and TNF-α levels and prevented the depletion of the antioxidant enzymes GSH, SOD and CAT activities in CCl4 induced liver damage. Furthermore, AT markedly reduced AST, ALT and ALP levels in the CCl4 treated mice groups. In conclusion, the antidiabetic and hepatoprotective effect of AT may be associated with its antioxidant and its ability to inhibit the pro-inflammatory mediators.
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Affiliation(s)
- Xingli Tang
- College of Horticulture, Nanjing Agricultural University, Weigang No.1, Nanjing 210095, Jiangsu, China
| | - Opeyemi J Olatunji
- Faculty of Thai Traditional Medicine, Prince of Songkla University, Hat Yai 90112, Thailand
| | - Yifeng Zhou
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing Botanical Garden, Nanjing 210014, China
| | - Xilin Hou
- College of Horticulture, Nanjing Agricultural University, Weigang No.1, Nanjing 210095, Jiangsu, China.
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18
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Dorjsembe B, Lee HJ, Kim M, Dulamjav B, Jigjid T, Nho CW. Achillea asiatica extract and its active compounds induce cutaneous wound healing. JOURNAL OF ETHNOPHARMACOLOGY 2017; 206:306-314. [PMID: 28602757 DOI: 10.1016/j.jep.2017.06.006] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Revised: 05/28/2017] [Accepted: 06/03/2017] [Indexed: 06/07/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Achillea asiatica Serg. is a perennial herb belonging to the Asteraceae family that has long been traditionally used to treat acute intestinal and stomach inflammation, persistent fever, ulcers, wounds, and rheumatism. AIM OF THE STUDY We investigated the effect of A. asiatica extract (AAE) on cutaneous wound healing. MATERIALS AND METHODS To assess the effect of AAE on wounds, an incisional Sprague-Dawley (SD) rat model was topically treated with AAE for 2 weeks. HaCaT keratinocytes, Hs68 dermal fibroblasts, and RAW 264.7 macrophages were used for in vitro experiments. After treatment with AAE, cell viability, cell migration, and production of nitric oxide (NO) and prostaglandin E2 (PGE2) were investigated. mRNA expression of collagen type I and III and inflammatory cytokines was measured by RT-PCR. The effect of AAE on activation of β-catenin and other markers was determined by Western blot analysis. RESULTS AAE treatment significantly increased epithelialization and accelerated wound healing in SD rats. Meanwhile, AAE and its active compounds reduced NO and PGE2 release and mRNA expression of inflammatory cytokines in RAW 264.7 macrophages, reflecting anti-inflammatory activity. Furthermore, AAE and its constituents stimulated collagen expression in Hs68 fibroblasts by activating transforming growth factor-β and stimulated keratinocyte differentiation and motility by inducing β-catenin, Akt, and keratinocyte differentiation markers. CONCLUSIONS AAE improves skin wounds in SD rats and supports keratinocyte development.
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Affiliation(s)
- Banzragch Dorjsembe
- Natural Products Research Center, Korea Institute of Science and Technology, Gangneung, Republic of Korea; Department of Biological Chemistry, University of Science and Technology, Daejeon, Republic of Korea
| | - Hee Ju Lee
- Natural Products Research Center, Korea Institute of Science and Technology, Gangneung, Republic of Korea; Systems Biotechnology Research Center, Korea Institute of Science and Technology, Gangneung, Republic of Korea
| | - Myungsuk Kim
- Natural Products Research Center, Korea Institute of Science and Technology, Gangneung, Republic of Korea; Convergence Research Center for Smart Farm Solution, Korea Institute of Science and Technology, Gangneung, Republic of Korea
| | - Batsuren Dulamjav
- Natural Product Chemistry Laboratory, Institute of Chemistry and Chemical Technology, Mongolian Academy of Science, Ulaanbaatar, Mongolia
| | - Tunsag Jigjid
- Natural Product Chemistry Laboratory, Institute of Chemistry and Chemical Technology, Mongolian Academy of Science, Ulaanbaatar, Mongolia
| | - Chu Won Nho
- Natural Products Research Center, Korea Institute of Science and Technology, Gangneung, Republic of Korea; Convergence Research Center for Smart Farm Solution, Korea Institute of Science and Technology, Gangneung, Republic of Korea.
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19
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Bieski IGC, Leonti M, Arnason JT, Ferrier J, Rapinski M, Violante IMP, Balogun SO, Pereira JFCA, Figueiredo RDCF, Lopes CRAS, da Silva DR, Pacini A, Albuquerque UP, Martins DTDO. Ethnobotanical study of medicinal plants by population of Valley of Juruena Region, Legal Amazon, Mato Grosso, Brazil. JOURNAL OF ETHNOPHARMACOLOGY 2015; 173:383-423. [PMID: 26234177 DOI: 10.1016/j.jep.2015.07.025] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Revised: 06/16/2015] [Accepted: 07/16/2015] [Indexed: 05/27/2023]
Abstract
ETHNOPHARMACOLOGICAL IMPORTANCE The use of medicinal plants for treatment, cure and prevention of diseases has been described by many people since time immemorial. Because of this use, commercial and scientific interests have emerged, making it necessary to realize ethnobotanical surveys of medicinal plants species, which is important for subsequent chemical and pharmacological bioprospections. AIM OF THE STUDY This study aimed at surveying, identifying, cataloging and documenting the medicinal plants species used in the Valley of Juruena, Northwestern Mato Grosso, Legal Amazon Brazil for the treatment of various human diseases, as well as assessed the species of interest for bioprospecting potential. MATERIALS AND METHODS Informants were interviewed using semi-structured form to capture information on socio-demographic and ethnopharmacological data of medicinal plants such as vernacular name, uses, geographic origin, habit, form of preparation and part used. Results were analyzed using descriptive and quantitative means: indices of use-report (Ur) and informant consensus factor (ICF), for the selection of plant species with therapeutic potential. RESULTS Three hundred and thirty two (332) plants species belonging to 90 families were reported for medicinal purposes and totaling 3973 use-reports were reported by 365 (92.9%) of the people interviewed. Asteraceae (32.2%), Fabaceae (26.7%) and Lamiaceae (24.4%) families were the most represented, with majority being species native (64.45%) to Brazil. Leaves (64.5%) were the part of the plant most used and infusion (45.7%) was the most utilized form. Gastrointestinal disorders followed by respiratory complaints topped the list of use-reports. The native or naturalized plants with the highest use reports in the order of decreasing absolute frequency per each emic-category are Cymbopogon citratus (DC.) Stapfc (104), Mentha pulegium L. (94), Arrabidaea chica (Humb. & Bonpl.) B. Verl. (97), Alternanthera brasiliana (L.) Kuntze (71), Baccharis crispa Spreng (57), Phyllanthus niruri L. (48), Gossypium barbadense L. (44), Solidago microglossa DC. (40) and Bauhinia forficata L. (20). And the most cited exotics are: Chenopodium ambrosioides L. (151), Aloe vera (L.) Burm. f., (89) and Rosmarinus officinalis L. (72). In some cases, high ICF values were found, which reflects high degree of homogeneity of consensus among informants in this region on medicinal plants. CONCLUSION The population of Valle of Juruena makes use of a wide array of medicinal plants distributed in all use categories with predominance of those use in the treatments of gastrointestinal and respiratory ailments. The therapeutic potential of some of the species of medicinal importance extensively utilized by the population of the region have been scientifically validated, and are therefore promising prototype of new drugs. However, there are some of these species whose ethnomedicinal uses are yet to be scientifically verified and thus constitute an unexplored terrain for future biological/pharmacological studies.
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Affiliation(s)
- Isanete Geraldini Costa Bieski
- Department of Basic Sciences in Health, Faculty of Medicine, Federal University of Mato Grosso (UFMT), 78060-900 Cuiabá, MT, Brazil
| | - Marco Leonti
- Department of Biomedical Sciences, University of Cagliari, 09124 Cagliari, Italy
| | - John Thor Arnason
- Department Biology, University of Ottawa, 30 Marie Curie, Ottawa, Canada
| | - Jonathan Ferrier
- Department Biology, University of Ottawa, 30 Marie Curie, Ottawa, Canada
| | - Michel Rapinski
- Department Biology, University of Ottawa, 30 Marie Curie, Ottawa, Canada
| | - Ivana Maria Povoa Violante
- Department of Basic Sciences in Health, Faculty of Medicine, Federal University of Mato Grosso (UFMT), 78060-900 Cuiabá, MT, Brazil
| | - Sikiru Olaitan Balogun
- Department of Basic Sciences in Health, Faculty of Medicine, Federal University of Mato Grosso (UFMT), 78060-900 Cuiabá, MT, Brazil
| | - João Filipe Costa Alves Pereira
- Department of Basic Sciences in Health, Faculty of Medicine, Federal University of Mato Grosso (UFMT), 78060-900 Cuiabá, MT, Brazil
| | - Rita de Cassia Feguri Figueiredo
- Department of Basic Sciences in Health, Faculty of Medicine, Federal University of Mato Grosso (UFMT), 78060-900 Cuiabá, MT, Brazil
| | - Célia Regina Araújo Soares Lopes
- Faculty of Biological and Agrarian Sciences, University of Mato Grosso State (UNEMAT), Campus Universitário de Alta Floresta, UNEMAT, 208, km 146, Jardim Tropical, Alta Floresta, MT, Brazil
| | - Dennis Rodrigues da Silva
- Faculty of Biological and Agrarian Sciences, University of Mato Grosso State (UNEMAT), Campus Universitário de Alta Floresta, UNEMAT, 208, km 146, Jardim Tropical, Alta Floresta, MT, Brazil
| | - Aloir Pacini
- Department of Anthropology, Rondon Museum, Federal University of Mato Grosso, Brazil
| | - Ulysses Paulino Albuquerque
- Department of Biology, Laboratory of Applied and Theoretical Ethnobiology (LEA), Federal Rural University of Pernambuco (UFRPE), Recife, Pernambuco, Brazil
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Hajiaghaalipour F, Khalilpourfarshbafi M, Arya A. Modulation of glucose transporter protein by dietary flavonoids in type 2 diabetes mellitus. Int J Biol Sci 2015; 11:508-24. [PMID: 25892959 PMCID: PMC4400383 DOI: 10.7150/ijbs.11241] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Accepted: 02/08/2015] [Indexed: 12/23/2022] Open
Abstract
Diabetes mellitus (DM) is a metabolic diseases characterized by hyperglycemia due to insufficient or inefficient insulin secretory response. This chronic disease is a global problem and there is a need for greater emphasis on therapeutic strategies in the health system. Phytochemicals such as flavonoids have recently attracted attention as source materials for the development of new antidiabetic drugs or alternative therapy for the management of diabetes and its related complications. The antidiabetic potential of flavonoids are mainly through their modulatory effects on glucose transporter by enhancing GLUT-2 expression in pancreatic β cells and increasing expression and promoting translocation of GLUT-4 via PI3K/AKT, CAP/Cb1/TC10 and AMPK pathways. This review highlights the recent findings on beneficial effects of flavonoids in the management of diabetes with particular emphasis on the investigations that explore the role of these compounds in modulating glucose transporter proteins at cellular and molecular level.
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Affiliation(s)
- Fatemeh Hajiaghaalipour
- 1. Department of Pharmacy, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Manizheh Khalilpourfarshbafi
- 2. Faculty of Pharmacy, Universiti Teknologi MARA (UiTM), 42300 Bandar Puncak Alam, Selangor Darul Ehsan, Malaysia
| | - Aditya Arya
- 1. Department of Pharmacy, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
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Eid HM, Nachar A, Thong F, Sweeney G, Haddad PS. The molecular basis of the antidiabetic action of quercetin in cultured skeletal muscle cells and hepatocytes. Pharmacogn Mag 2015; 11:74-81. [PMID: 25709214 PMCID: PMC4329636 DOI: 10.4103/0973-1296.149708] [Citation(s) in RCA: 101] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Revised: 06/09/2014] [Accepted: 01/21/2015] [Indexed: 01/25/2023] Open
Abstract
Background: Quercetin is universally distributed in the plant kingdom and is the most abundant flavonoid in the human diet. In a previous study, we have reported that quercetin stimulated glucose uptake in cultured C2C12 skeletal muscle through an insulin-independent mechanism involving adenosine monophosphate-activated protein kinase (AMPK). AMPK is a key regulator of the whole body-energy homeostasis. In skeletal muscle, activation of AMPK increases glucose uptake through the stimulation of the glucose transporter GLUT4 translocation to the plasma membrane. In liver, AMPK decreases glucose production mainly through the downregulation of the key gluconeogenesis enzymes such as phosphoenolpyruvate carboxylase (PEPCK) and Glucose -6-phosphate (G6Pase). Objective: To study the effect of quercetin on glucose homeostasis in muscle and liver. Materials and Methods: L6 skeletal muscle cells, murine H4IIE and human HepG2 hepatocytes were treated with quercetin (50 μM) for 18 h. Results: An 18 h treatment with quercetin (50 μM) stimulated AMPK and increased GLUT4 translocation and protein content in cultured rat L6 skeletal muscle cells. On the other hand, we report that quercetin induced hepatic AMPK activation and inhibited G6pase in H4IIE hepatocytes. Finally, we have observed that quercetin exhibited a mild tendency to increase the activity of glycogen synthase (GS), the rate-limiting enzyme of glycogen synthesis, in HepG2 hepatocytes. Conclusions: Overall, these data demonstrate that quercetin positively influences glucose metabolism in the liver and skeletal muscle, and therefore appear to be a promising therapeutic candidate for the treatment of in type 2 diabetes.
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Affiliation(s)
- Hoda M Eid
- Department of Pharmacology, Natural Health Products and Metabolic Diseases Laboratory, Université de Montréal, Montreal, QC, Canada ; Canadian Institutes of Health Research Team in Aboriginal Antidiabetic Medicines and Montreal Diabetes Research Center, Canada ; Department of Pharmacognosy, University of Beni-seuf, Beni-seuf, Egypt
| | - Abir Nachar
- Department of Pharmacology, Natural Health Products and Metabolic Diseases Laboratory, Université de Montréal, Montreal, QC, Canada ; Canadian Institutes of Health Research Team in Aboriginal Antidiabetic Medicines and Montreal Diabetes Research Center, Canada
| | - Farah Thong
- Department of Biology, York University, Toronto, Ontario, Canada
| | - Gary Sweeney
- Department of Biology, York University, Toronto, Ontario, Canada
| | - Pierre S Haddad
- Department of Pharmacology, Natural Health Products and Metabolic Diseases Laboratory, Université de Montréal, Montreal, QC, Canada ; Canadian Institutes of Health Research Team in Aboriginal Antidiabetic Medicines and Montreal Diabetes Research Center, Canada
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Kaempferol, a potential cytostatic and cure for inflammatory disorders. Eur J Med Chem 2014; 86:103-12. [PMID: 25147152 DOI: 10.1016/j.ejmech.2014.08.011] [Citation(s) in RCA: 144] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Revised: 08/04/2014] [Accepted: 08/04/2014] [Indexed: 12/30/2022]
Abstract
Kaempferol (3,5,7-trihydroxy-2-(4-hydroxyphenyl)-4H-1-benzopyran-4-one) is a flavonoid found in many edible plants (e.g., tea, broccoli, cabbage, kale, beans, endive, leek, tomato, strawberries, and grapes) and in plants or botanical products commonly used in traditional medicine (e.g., Ginkgo biloba, Tilia spp, Equisetum spp, Moringa oleifera, Sophora japonica and propolis). Its anti-oxidant/anti-inflammatory effects have been demonstrated in various disease models, including those for encephalomyelitis, diabetes, asthma, and carcinogenesis. Moreover, kaempferol act as a scavenger of free radicals and superoxide radicals as well as preserve the activity of various anti-oxidant enzymes such as catalase, glutathione peroxidase, and glutathione-S-transferase. The anticancer effect of this flavonoid is mediated through different modes of action, including anti-proliferation, apoptosis induction, cell-cycle arrest, generation of reactive oxygen species (ROS), and anti-metastasis/anti-angiogenesis activities. In addition, kaempferol was found to exhibit its anticancer activity through the modulation of multiple molecular targets including p53 and STAT3, through the activation of caspases, and through the generation of ROS. The anti-tumor effects of kaempferol have also been investigated in tumor-bearing mice. The combination of kaempferol and conventional chemotherapeutic drugs produces a greater therapeutic effect than the latter, as well as reduces the toxicity of the latter. In this review, we summarize the anti-oxidant/anti-inflammatory and anticancer effects of kaempferol with a focus on its molecular targets and the possible use of this flavonoid for the treatment of inflammatory diseases and cancer.
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Cazarolli LH, Pereira DF, Kappel VD, Folador P, Figueiredo MDSRB, Pizzolatti MG, Silva FRMB. Insulin signaling: A potential signaling pathway for the stimulatory effect of kaempferitrin on glucose uptake in skeletal muscle. Eur J Pharmacol 2013; 712:1-7. [DOI: 10.1016/j.ejphar.2013.02.029] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2012] [Revised: 02/08/2013] [Accepted: 02/14/2013] [Indexed: 11/27/2022]
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Kappel VD, Zanatta L, Postal BG, Silva FRMB. Rutin potentiates calcium uptake via voltage-dependent calcium channel associated with stimulation of glucose uptake in skeletal muscle. Arch Biochem Biophys 2013; 532:55-60. [PMID: 23395857 DOI: 10.1016/j.abb.2013.01.008] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2012] [Revised: 01/19/2013] [Accepted: 01/23/2013] [Indexed: 11/29/2022]
Abstract
Rutin is a flavonoid with several pharmacological properties and it has been demonstrated that rutin can modulate glucose homeostasis. In skeletal muscle, an increase in intracellular calcium concentration may induce glucose transporter-4 (GLUT-4) translocation with consequent glucose uptake. The aim of this study was to investigate the effect of rutin and intracellular pathways on calcium uptake as well as the involvement of calcium in glucose uptake in skeletal muscle. The results show that rutin significantly stimulated calcium uptake through voltage-dependent calcium channels as well as mitogen-activated kinase (MEK) and protein kinase A (PKA) signaling pathways. Also, rutin stimulated glucose uptake in the soleus muscle and this effect was mediated by extracellular calcium and calcium-calmodulin-dependent protein kinase II (CaMKII) activation. In conclusion, rutin significantly stimulates calcium uptake in rat soleus muscles. Furthermore, the increase in intracellular calcium concentration is involved in DNA activation by rutin. Also, rutin-induced glucose uptake via CaMKII may result in GLUT-4 translocation to the plasma membrane, characterizing an insulin-independent pathway. These findings indicate that rutin is a potential drug candidate for diabetes therapy.
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Affiliation(s)
- Virginia Demarchi Kappel
- Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis-Santa Catarina, Brazil
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Ameliorating effect of Semecarpus anacardium Linn. nut milk extract on altered glucose metabolism in high fat diet STZ induced type 2 diabetic rats. ASIAN PAC J TROP MED 2012. [DOI: 10.1016/s1995-7645(12)60181-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Lima CR, Vasconcelos CFB, Costa-Silva JH, Maranhão CA, Costa J, Batista TM, Carneiro EM, Soares LAL, Ferreira F, Wanderley AG. Anti-diabetic activity of extract from Persea americana Mill. leaf via the activation of protein kinase B (PKB/Akt) in streptozotocin-induced diabetic rats. JOURNAL OF ETHNOPHARMACOLOGY 2012; 141:517-525. [PMID: 22472105 DOI: 10.1016/j.jep.2012.03.026] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2011] [Revised: 03/08/2012] [Accepted: 03/17/2012] [Indexed: 05/31/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The leaves of Persea americana Mill. (Lauraceae) have been popularly used in the treatment of diabetes in countries in Latin America and Africa. AIM OF THE STUDY To investigate the hypoglycaemic properties and to determine the molecular mechanism by which the hydroalcoholic extract of the leaves of Persea americana reduce blood glucose levels in streptozotocin (STZ)-induced diabetes in rats via the enzymatic pathway of protein kinase B (PKB/Akt). METHODS The hydroalcoholic extract of the leaves of Persea americana (0.15 and 0.3g/kg/day), vehicle and metformin (0.5g/kg/day) were administered orally to STZ-diabetic rats (n=7/group) for 4 weeks. Changes in body weight, food and water intake, fasting glucose levels and oral glucose tolerance were evaluated. Phosphorylation and the expression of PKB in the liver and soleus muscle were determined by Western blot. RESULTS The hydroalcoholic extract of the leaves of Persea americana reduced blood glucose levels and improved the metabolic state of the animals. Additionally, PKB activation was observed in the liver and skeletal muscle of treated rats when compared with untreated rats. CONCLUSION The results indicate that the hydroalcoholic extract of the leaves of Persea americana has anti-diabetic properties and possibly acts to regulate glucose uptake in liver and muscles by way of PKB/Akt activation, restoring the intracellular energy balance.
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Affiliation(s)
- C R Lima
- Department of Pharmaceutical Sciences, Federal University of Pernambuco, Recife 50740-521, Brazil
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Trojan-Rodrigues M, Alves TLS, Soares GLG, Ritter MR. Plants used as antidiabetics in popular medicine in Rio Grande do Sul, southern Brazil. JOURNAL OF ETHNOPHARMACOLOGY 2012; 139:155-163. [PMID: 22079795 DOI: 10.1016/j.jep.2011.10.034] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2011] [Revised: 10/24/2011] [Accepted: 10/26/2011] [Indexed: 05/31/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Plants are widely as antidiabetics. The study of these plants is essential because many of them may have undesirable effects, such as acute or chronic toxicity; or their use may even delay or discourage the adoption of the proper and effective treatment. MATERIALS AND METHODS The present study surveyed the plant species that are popularly used to treat diabetes mellitus in the state of Rio Grande do Sul in southern Brazil. Sixteen ethnobotanical surveys performed in the state were consulted, and the species used to treat diabetes were listed. For species cited in at least two of the studies, scientific data related to antidiabetic activity were searched in the ISI Knowledge database. The scientific binomial of each species was used as keywords, and data found in review papers were also included. RESULTS A total of 81 species in 42 families were mentioned; the most important families were Asteraceae and Myrtaceae. Twenty eight species were cited at least twice as being used to treat diabetes in the state. For 11 of these, no scientific data regarding antidiabetic activity could be located. The species most frequently mentioned for use with diabetes were Syzygium cumini (Myrtaceae) and Bauhinia forficata (Fabaceae), in 12 studies each, followed by Sphagneticola trilobata (Asteraceae), in six studies; and Baccharis trimera (Asteraceae), Bidens pilosa (Asteraceae), Cynara scolymus (Asteraceae), and Leandra australis (Melastomataceae) in four studies each. Bauhinia forficata and Syzygium cumini have been studied in more detail for antidiabetic activity. CONCLUSIONS A considerable number of plant species are traditionally used for the treatment of diabetes melitus in the Rio Grande do Sul State. The majority of those plants that have been studied for antidiabetic activity showed promising results, mainly for Bauhinia forficata and Syzygium cumini. However, for most of the plants mentioned, the studies are not sufficient to guarantee the efficacy and safety in the use of these plants in the treatment against diabetes.
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Affiliation(s)
- M Trojan-Rodrigues
- Pós-Graduação em Botânica, Instituto de Biociências, Universidade Federal do Rio Grande do Sul. Av. Bento Gonçalves 9500, Prédio 43433, Campus do Vale, 91501-970 Porto Alegre, RS, Brazil
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Pereira DF, Cazarolli LH, Lavado C, Mengatto V, Figueiredo MSRB, Guedes A, Pizzolatti MG, Silva FRMB. Effects of flavonoids on α-glucosidase activity: potential targets for glucose homeostasis. Nutrition 2011; 27:1161-7. [PMID: 21684120 DOI: 10.1016/j.nut.2011.01.008] [Citation(s) in RCA: 116] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2010] [Revised: 12/20/2010] [Accepted: 01/24/2011] [Indexed: 11/17/2022]
Abstract
OBJECTIVE Flavonoids are naturally occurring compounds widely distributed in plants, which have hypoglycemic potential and have been described as glucosidase inhibitors. This study evaluated the effect of flavonoids on intestinal glucosidase activity after in vivo and in vitro treatment. METHODS For the in vivo studies animals received quercetin by gavage and for the in vitro assays a segment of the small intestine was used. To obtain the oral glucose tolerance curve fasted normal rats were loaded with glucose plus flavonoids. The glycemia was measured by the glucose oxidase method. RESULTS Quercetin reduced the effect of sucrase and maltase in the in vivo and in vitro treatments. It was observed in the in vitro studies that the maximum inhibitory effect of kaempferitrin was around 23% for maltase activity. Also, for the sucrose substrate the specific enzyme activity was significantly decreased. Aglycone, flavonoids, and kaempferol decreased significantly the maltase activity at all concentrations assayed. Finally, rutin reduced maltase-specific activity at all concentrations studied. According to the oral glucose tolerance curve, rutin reduced the serum glucose levels at 15, 30, and 60 min when administered by oral gavage 30 min before glucose overload in rats. CONCLUSION Based on these results, we can conclude that disaccharidases are targets of flavonoids in the regulation of glucose absorption and consequently glucose homeostasis.
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Affiliation(s)
- Danielle Fontana Pereira
- Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Campus Universitário, Bairro Trindade, Florianópolis, SC, Brazil
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Leite ACR, Araújo TG, Carvalho BDM, Maia MBS, Lima VLDM. Characterization of the Antidiabetic Role of Parkinsonia aculeata (Caesalpineaceae). EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2010; 2011:692378. [PMID: 20953386 PMCID: PMC2952319 DOI: 10.1155/2011/692378] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/16/2010] [Revised: 06/25/2010] [Accepted: 08/07/2010] [Indexed: 11/17/2022]
Abstract
This paper reports the characterization of the antidiabetic role of a hydroethanolic extract from Parkinsonia aerial parts (HEPA), in normal and alloxan-induced diabetic rats, treated with HEPA (125 and 250 mg/kg; p.o.). Oral glucose tolerance test, acute oral toxicity test and preliminary phytochemical analyses were performed. The diabetic rats treated with HEPA showed a significant reduction in serum and urinary glucose, urinary urea and triglyceride levels, as compared to the diabetic untreated group. However, in the normal treated groups, a significant reduction was found only in serum triglyceride levels. In all treated diabetic groups, an improvement in hepatic glycogen was observed, as well as a decrease in liquid intake and urinary volume, and an enhancement in the weight of skeletal muscles (soleus and extensor digitorum longus), kidneys and epididymal adipose tissue. Nevertheless, body and liver weights were ameliorated only in the diabetic group treated with HEPA (250 mg/kg). Moreover, oral glucose tolerance was higher in animals treated with HEPA, while results also showed that HEPA could be considered toxicologically safe. Phytochemical analysis revealed the presence of tanins, flavonoids and steroids in HEPA. In conclusion, P. aculeata presents an antidiabetic activity and other beneficial effects that ameliorate diabetes and associated complications.
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Affiliation(s)
- Ana Catarina Rezende Leite
- Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Pernambuco, Cidade Universitária, 50670-901, Recife, PE, Brazil
| | - Tiago Gomes Araújo
- Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Pernambuco, Cidade Universitária, 50670-901, Recife, PE, Brazil
| | - Bruno de Melo Carvalho
- Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Pernambuco, Cidade Universitária, 50670-901, Recife, PE, Brazil
| | - Maria Bernadete Souza Maia
- Departamento de Fisiologia e Farmacologia, Centro de Ciências Biológicas, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Vera Lúcia de Menezes Lima
- Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Pernambuco, Cidade Universitária, 50670-901, Recife, PE, Brazil
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Azevedo MF, Camsari C, Sá CM, Lima CF, Fernandes-Ferreira M, Pereira-Wilson C. Ursolic acid and luteolin-7-glucoside improve lipid profiles and increase liver glycogen content through glycogen synthase kinase-3. Phytother Res 2010; 24 Suppl 2:S220-4. [PMID: 20127879 DOI: 10.1002/ptr.3118] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
In the present study, two phytochemicals - ursolic acid (UA) and luteolin-7-glucoside (L7G) - were assessed in vivo in healthy rats regarding effects on plasma glucose and lipid profile (total cholesterol, HDL and LDL), as well as liver glycogen content, in view of their importance in the aetiology of diabetes and associated complications. Both UA and L7G significantly decreased plasma glucose concentration. UA also significantly increased liver glycogen levels accompanied by phosphorylation of glycogen synthase kinase-3 (GSK3). The increase in glycogen deposition induced by UA (mediated by GSK3) could have contributed to the lower plasma glucose levels observed. Both compounds significantly lowered total plasma cholesterol and low-density lipoprotein levels, and, in addition, UA increased plasma high-density lipoprotein levels. Our results show that UA particularly may be useful in preventable strategies for people at risk of developing diabetes and associated cardiovascular complications by improving plasma glucose levels and lipid profile, as well as by promoting liver glycogen deposition.
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Affiliation(s)
- Marisa F Azevedo
- CBMA - Centre of Molecular and Environmental Biology/Department of Biology, University of Minho, Campus de Gualtar, Braga, Portugal
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