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Medalcho TH, Ali KA, Augchew ED, Mate JI. Effects of spices mixture and cooking on phytochemical content in Ethiopian spicy hot red pepper products. Food Sci Nutr 2024; 12:4594-4604. [PMID: 39055194 PMCID: PMC11266928 DOI: 10.1002/fsn3.3886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 11/13/2023] [Accepted: 11/16/2023] [Indexed: 07/27/2024] Open
Abstract
Spicy hot red pepper, the most popular spice in Ethiopia, is also locally known as berbere, which is highly valued for its pungency, flavor, and color. The spicy hot red pepper powder is used to flavor shiro and other stews, as well as different forms of condiments. The aim of this study was to measure the phytochemical content of raw spices (black cumin, garlic, ginger, and cardamom) and control hot red pepper (HRP), as well as the raw and cooked experimental and commercial spicy hot red pepper products. The samples were analyzed for phytochemical content using a spectrophotometer. Compared to raw experimental spicy hot red pepper, raw spices, and HRP, raw commercial spicy hot red pepper exhibited the highest bioactive phytochemicals. The cooked commercial spicy hot red pepper or sauté had the highest total flavonoid content (TFC) and total carotenoid content (TCC). Similarly, cooked experimental spicy hot red pepper contained the highest levels of total phenolic content (TPC) and β-carotene. With r values ranging from 0.24 to 0.65, the TPC and TFC of raw spices were correlated with antioxidant activity. There was a significant correlation between TCC and 2,2-diphenyl-1-picrylhydrazyl (DPPH) (r = .71), 2, 2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) (r = .95), and ferric ion reducing antioxidant power (FRAP) (r = .76), as well as between β-carotene and DPPH (r = .69), FRAP (r = .69), and ferrous ion chelating activity (FICA) (r = .78). This study verified that raw spices and their mix with hot red pepper are good sources of bioactive phytochemicals with radicals scavenging abilities in Ethiopian diets.
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Affiliation(s)
- Tadewos Hadero Medalcho
- School of Nutrition, Food Science and Technology, College of Agriculture, Hawassa UniversityHawassaEthiopia
| | - Kebede Abegaz Ali
- School of Nutrition, Food Science and Technology, College of Agriculture, Hawassa UniversityHawassaEthiopia
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Karimi-Sales E, Mohaddes G, Alipour MR. Hepatoprotection of capsaicin in alcoholic and non-alcoholic fatty liver diseases. Arch Physiol Biochem 2024; 130:38-48. [PMID: 34396890 DOI: 10.1080/13813455.2021.1962913] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 07/27/2021] [Indexed: 02/06/2023]
Abstract
Alcoholic liver disease (ALD) and non-alcoholic fatty liver disease (NAFLD) are common causes of chronic liver disease that share the range of steatosis, steatohepatitis, fibrosis, cirrhosis, and finally, hepatocellular carcinoma. They are identified by the dysregulation of disease-specific signalling pathways and unique microRNAs. Capsaicin is an active ingredient of chilli pepper that acts as an agonist of transient receptor potential vanilloid subfamily 1. It seems that the protective role of capsaicin against NAFLD and ALD is linked to its anti-steatotic, antioxidant, anti-inflammatory, and anti-fibrotic effects. Capsaicin-induced inhibiting metabolic syndrome and gut dysbiosis and increasing bile acids production are also involved in its anti-NAFLD role. This review summarises the different molecular mechanisms underlying the protective role of capsaicin against NAFLD and ALD. More experimental studies are needed to clarify the effects of capsaicin on the expression of genes involved in hepatic lipid metabolism and hepatocytes apoptosis in NAFLD and ALD.
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Affiliation(s)
- Elham Karimi-Sales
- Tuberculosis and Lung Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Gisou Mohaddes
- Tuberculosis and Lung Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Reza Alipour
- Tuberculosis and Lung Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Physiology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
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Omale S, Amagon KI, Johnson TO, Bremner SK, Gould GW. A systematic analysis of anti-diabetic medicinal plants from cells to clinical trials. PeerJ 2023; 11:e14639. [PMID: 36627919 PMCID: PMC9826616 DOI: 10.7717/peerj.14639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 12/05/2022] [Indexed: 01/06/2023] Open
Abstract
Background Diabetes is one of the fastest-growing health emergencies of the 21st century, placing a severe economic burden on many countries. Current management approaches have improved diabetic care, but several limitations still exist, such as decreased efficacy, adverse effects, and the high cost of treatment, particularly for developing nations. There is, therefore, a need for more cost-effective therapies for diabetes management. The evidence-based application of phytochemicals from plants in the management of diseases is gaining traction. Methodology Various plants and plant parts have been investigated as antidiabetic agents. This review sought to collate and discuss published data on the cellular and molecular effects of medicinal plants and phytochemicals on insulin signaling pathways to better understand the current trend in using plant products in the management of diabetes. Furthermore, we explored available information on medicinal plants that consistently produced hypoglycemic effects from isolated cells to animal studies and clinical trials. Results There is substantial literature describing the effects of a range of plant extracts on insulin action and insulin signaling, revealing a depth in knowledge of molecular detail. Our exploration also reveals effective antidiabetic actions in animal studies, and clear translational potential evidenced by clinical trials. Conclusion We suggest that this area of research should be further exploited in the search for novel therapeutics for diabetes.
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Affiliation(s)
- Simeon Omale
- African Centre for Excellence in Phytomedicine, University of Jos, Jos, Nigeria
- Department of Pharmacology and Toxicology, Faculty of Pharmaceutical Sciences, University of Jos, Jos, Nigeria
| | - Kennedy I. Amagon
- Department of Pharmacology and Toxicology, Faculty of Pharmaceutical Sciences, University of Jos, Jos, Nigeria
| | - Titilayo O. Johnson
- Department of Biochemistry, Faculty of Basic Medical Sciences, University of Jos, Jos, Nigeria
| | - Shaun Kennedy Bremner
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, United Kingdom
| | - Gwyn W. Gould
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, United Kingdom
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Liang W, Lan Y, Chen C, Song M, Xiao J, Huang Q, Cao Y, Ho CT, Lu M. Modulating effects of capsaicin on glucose homeostasis and the underlying mechanism. Crit Rev Food Sci Nutr 2021:1-19. [PMID: 34657531 DOI: 10.1080/10408398.2021.1991883] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Abnormal glucose homeostasis is linked to a variety of metabolic syndromes, such as insulin resistance, obesity, type-2 diabetes mellitus, hypertension and cardiovascular diseases. Maintenance of normal glucose homeostasis is important for the body to keep normal biological functions. As the major bioactive ingredient in chili peppers responsible for the pungent flavor, capsaicin has been reported to effectively improve glucose homeostasis with low cytotoxicity. In this review, the modulating effects of capsaicin on glucose homeostasis in cell models, animal models and human trials are summarized through both TRPV1 dependent and TRPV1 independent pathways. The relevant molecular mechanisms underlying its regulatory effects are also evaluated. Understanding the effects and mechanisms of capsaicin on glucose metabolism could provide theoretical evidence for its application in the food and pharmaceutical industries.
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Affiliation(s)
- Wanxia Liang
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Yaqi Lan
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Chengyu Chen
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China
| | - Mingyue Song
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Jie Xiao
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Qingrong Huang
- Department of Food Science, Rutgers University, New Brunswick, NJ, USA
| | - Yong Cao
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Chi-Tang Ho
- Department of Food Science, Rutgers University, New Brunswick, NJ, USA
| | - Muwen Lu
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, China
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Woldemariam HW, Admassu Emire S, Getachew Teshome P, Toepfl S, Aganovic K. Physicochemical, functional, oxidative stability and rheological properties of red pepper ( Capsicum annuum L.) powder and paste. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2021. [DOI: 10.1080/10942912.2021.1969945] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Henock Woldemichael Woldemariam
- Food Engineering Graduate Program, School of Chemical and Bioengineering, Addis Ababa Institute of Technology, Addis Ababa University, Addis Ababa, Ethiopia
- Department of Food Engineering, College of Biological and Chemical Engineering, Addis Ababa Science and Technology University, Addis Ababa, Ethiopia
| | - Shimelis Admassu Emire
- Food Engineering Graduate Program, School of Chemical and Bioengineering, Addis Ababa Institute of Technology, Addis Ababa University, Addis Ababa, Ethiopia
| | - Paulos Getachew Teshome
- Center for Food Science and Nutrition, College of Natural and Computational Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Stefan Toepfl
- Osnabrück University of Applied Sciences, Osnabrück University of Applied Sciences, Osnabrück, Germany
| | - Kemal Aganovic
- Dil German Institute of Food Technologies e.V, Quakenbrück, Germany
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Gómez-Maqueo A, Escobedo-Avellaneda Z, Welti-Chanes J. Phenolic Compounds in Mesoamerican Fruits-Characterization, Health Potential and Processing with Innovative Technologies. Int J Mol Sci 2020; 21:E8357. [PMID: 33171785 PMCID: PMC7664671 DOI: 10.3390/ijms21218357] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Revised: 10/05/2020] [Accepted: 10/29/2020] [Indexed: 02/07/2023] Open
Abstract
Diets rich in phenolic compounds have been associated to reducing the risk of metabolic syndrome and its derived disorders. Fruits are healthy components of the human diet because of their vitamin, mineral, fiber and phenolic profile. However, they have a short shelf-life which is limited by microbiological growth and enzymatic activity. Innovative preservation methods such as high hydrostatic pressure, pulsed electric fields, ultrasound, microwave, cold plasma and ultraviolet light have become popular for the processing of fruits because they can preserve nutritional quality. In this review, the phenolic profile and health potential of 38 Mesoamerican fruits were assessed. Phenolic compounds were classified based on their contribution to the diet as flavonoids, phenolic acids, tannin, lignins and stilbenoids. Due to this composition, fruits showed a wide range of bioactivities which included anti-inflammatory, anti-diabetic, anti-hypertensive and anti-obesity activities, among others. Phenolic content in fruits submitted to innovative food processing technologies depended on parameters such as enzymatic activity, antioxidant capacity, microstructure integrity and cell viability. Innovative technologies could increase phenolic content while assuring microbiological safety by (i) promoting the release of bound phenolic compounds during processing and (ii) inducing the synthesis of phenolic compounds by activation of phenylpropanoid pathway during storage.
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Affiliation(s)
- Andrea Gómez-Maqueo
- Food Structure Team, Clinical Nutrition Research Center, Singapore Institute of Food and Biotechnology Innovation, Agency for Science, Research and Technology, 14 Medical Drive #07-02, MD 6 Building, Yong Loo Lin School of Medicine, Singapore 117599, Singapore;
| | - Zamantha Escobedo-Avellaneda
- Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Av. Eugenio Garza Sada 2501 Sur, Col. Tecnológico, Monterrey 64849, Nuevo León, Mexico
| | - Jorge Welti-Chanes
- Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Av. Eugenio Garza Sada 2501 Sur, Col. Tecnológico, Monterrey 64849, Nuevo León, Mexico
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Kim HK, Jeong J, Kang EY, Go GW. Red Pepper ( Capsicum annuum L.) Seed Extract Improves Glycemic Control by Inhibiting Hepatic Gluconeogenesis via Phosphorylation of FOXO1 and AMPK in Obese Diabetic db/ db Mice. Nutrients 2020; 12:nu12092546. [PMID: 32842462 PMCID: PMC7551867 DOI: 10.3390/nu12092546] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 08/21/2020] [Accepted: 08/21/2020] [Indexed: 12/19/2022] Open
Abstract
Obesity is a notable risk factor for developing type 2 diabetes, augmenting the concern of obese diabetes (ObD). Anti-obesity and antioxidant effects of red pepper seeds extract (RPSE) have increased our expectations that RPSE would also improve the pathological phenotypes of obese diabetes. Therefore, we hypothesized that RPSE would have an anti-diabetic effect in ObD mice. Animals were assigned either as follows: (1) db/+, (2) db/db control, (3) RPSE (200 mg/kg bw), or (4) a comparative control (metformin 150 mg/kg bw). RPSE was orally administered daily for 8 weeks. As a result, RPSE supplementation improved diabetic phenotypes, including fasting glucose, hemoglobin (HbA1c), and insulin levels. Pro-inflammatory cytokines, tumor necrosis factor-alpha (TNF-α) and interleukin 6 (IL-6), and triglycerides were reduced in RPSE-treated mice. RPSE supplementation also diminished the rate-limiting enzymes of gluconeogenesis, including glucose 6-phosphatas (G6Pase) and phosphoenolpyruvate carboxykinase (PEPCK), in the liver. RPSE supplementation increased the phosphorylation of forkhead box protein O1 (FOXO1) and AMP-activated protein kinase (AMPK), which underlined the mechanism of the anti-diabetic effects of RPSE. Taken together, RPSE has the potential to improve glycemic control by repressing hepatic gluconeogenesis via the phosphorylation of FOXO1 and AMPK in ObD mice.
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Noor HB, Mou NA, Salem L, Shimul MF, Biswas S, Akther R, Khan S, Raihan S, Mohib MM, Sagor MA. Anti-inflammatory Property of AMP-activated Protein Kinase. Antiinflamm Antiallergy Agents Med Chem 2020; 19:2-41. [PMID: 31530260 PMCID: PMC7460777 DOI: 10.2174/1871523018666190830100022] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Revised: 07/29/2019] [Accepted: 08/20/2019] [Indexed: 12/23/2022]
Abstract
BACKGROUND One of the many debated topics in inflammation research is whether this scenario is really an accelerated form of human wound healing and immunityboosting or a push towards autoimmune diseases. The answer requires a better understanding of the normal inflammatory process, including the molecular pathology underlying the possible outcomes. Exciting recent investigations regarding severe human inflammatory disorders and autoimmune conditions have implicated molecular changes that are also linked to normal immunity, such as triggering factors, switching on and off, the influence of other diseases and faulty stem cell homeostasis, in disease progression and development. METHODS We gathered around and collected recent online researches on immunity, inflammation, inflammatory disorders and AMPK. We basically searched PubMed, Scopus and Google Scholar to assemble the studies which were published since 2010. RESULTS Our findings suggested that inflammation and related disorders are on the verge and interfere in the treatment of other diseases. AMPK serves as a key component that prevents various kinds of inflammatory signaling. In addition, our table and hypothetical figures may open a new door in inflammation research, which could be a greater therapeutic target for controlling diabetes, obesity, insulin resistance and preventing autoimmune diseases. CONCLUSION The relationship between immunity and inflammation becomes easily apparent. Yet, the essence of inflammation turns out to be so startling that the theory may not be instantly established and many possible arguments are raised for its clearance. However, this study might be able to reveal some possible approaches where AMPK can reduce or prevent inflammatory disorders.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Md A.T. Sagor
- Address correspondence to this author at the Department of Pharmaceutical Sciences, North South University, Dhaka, Bangladesh; Tel: +8801719130130; E-mail:
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Cione E, Plastina P, Pingitore A, Perri M, Caroleo MC, Fazio A, Witkamp R, Meijerink J. Capsaicin Analogues Derived from n-3 Polyunsaturated Fatty Acids (PUFAs) Reduce Inflammatory Activity of Macrophages and Stimulate Insulin Secretion by β-Cells In Vitro. Nutrients 2019; 11:E915. [PMID: 31022842 PMCID: PMC6520993 DOI: 10.3390/nu11040915] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 04/15/2019] [Accepted: 04/20/2019] [Indexed: 01/05/2023] Open
Abstract
In this study, two capsaicin analogues, N-eicosapentaenoyl vanillylamine (EPVA) and N-docosahexaenoyl vanillylamine (DHVA), were enzymatically synthesized from their corresponding n-3 long chain polyunsaturated fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), both dietary relevant components. The compounds significantly reduced the production of some lipopolysaccharide (LPS)-induced inflammatory mediators, including nitric oxide (NO), macrophage-inflammatory protein-3α (CCL20) and monocyte chemoattractant protein-1 (MCP-1 or CCL2), by RAW264.7 macrophages. Next to this, only EPVA increased insulin secretion by pancreatic INS-1 832/13 β-cells, while raising intracellular Ca2+ and ATP concentrations. This suggests that the stimulation of insulin release occurs through an increase in the intracellular ATP/ADP ratio in the first phase, while is calcium-mediated in the second phase. Although it is not yet known whether EPVA is endogenously produced, its potential therapeutic value for diabetes treatment merits further investigation.
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Affiliation(s)
- Erika Cione
- Department of Pharmacy, Health and Nutritional Sciences, Department of Excellence 2018-2022, University of Calabria, 87036 Arcavacata di Rende (CS), Italy.
| | - Pierluigi Plastina
- Department of Pharmacy, Health and Nutritional Sciences, Department of Excellence 2018-2022, University of Calabria, 87036 Arcavacata di Rende (CS), Italy.
| | - Attilio Pingitore
- Department of Pharmacy, Health and Nutritional Sciences, Department of Excellence 2018-2022, University of Calabria, 87036 Arcavacata di Rende (CS), Italy.
| | - Mariarita Perri
- Department of Pharmacy, Health and Nutritional Sciences, Department of Excellence 2018-2022, University of Calabria, 87036 Arcavacata di Rende (CS), Italy.
| | - Maria Cristina Caroleo
- Department of Pharmacy, Health and Nutritional Sciences, Department of Excellence 2018-2022, University of Calabria, 87036 Arcavacata di Rende (CS), Italy.
| | - Alessia Fazio
- Department of Pharmacy, Health and Nutritional Sciences, Department of Excellence 2018-2022, University of Calabria, 87036 Arcavacata di Rende (CS), Italy.
| | - Renger Witkamp
- Division of Human Nutrition and Health, Wageningen University, 6700 AA Wageningen, The Netherlands.
| | - Jocelijn Meijerink
- Division of Human Nutrition and Health, Wageningen University, 6700 AA Wageningen, The Netherlands.
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Chang CI, Chou CH, Liao MH, Chen TM, Cheng CH, Anggriani R, Tsai CP, Tseng HI, Cheng HL. Bitter melon triterpenes work as insulin sensitizers and insulin substitutes in insulin-resistant cells. J Funct Foods 2015. [DOI: 10.1016/j.jff.2014.12.050] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Ji G, Chen R, Zheng J. Atractylenolide I inhibits lipopolysaccharide-induced inflammatory responses via mitogen-activated protein kinase pathways in RAW264.7 cells. Immunopharmacol Immunotoxicol 2014; 36:420-5. [DOI: 10.3109/08923973.2014.968256] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Chang CI, Hsu CM, Li TS, Huang SD, Lin CC, Yen CH, Chou CH, Cheng HL. Constituents of the stem of Cucurbita moschata exhibit antidiabetic activities through multiple mechanisms. J Funct Foods 2014. [DOI: 10.1016/j.jff.2014.06.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
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Yang HJ, Kwon DY, Kim MJ, Kim DS, Kang S, Shin BK, Lee JJ, Moon NR, Daily JW, Park S. Red peppers with different pungencies and bioactive compounds differentially modulate energy and glucose metabolism in ovariectomized rats fed high fat diets. J Funct Foods 2014. [DOI: 10.1016/j.jff.2014.02.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Sung MJ, Davaatseren M, Kim SH, Kim MJ, Hwang JT. Boehmeria nivea attenuates LPS-induced inflammatory markers by inhibiting p38 and JNK phosphorylations in RAW264.7 macrophages. PHARMACEUTICAL BIOLOGY 2013; 51:1131-1136. [PMID: 23750815 DOI: 10.3109/13880209.2013.781196] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
CONTEXT Boehmeria nivea (Linn.) Gaudich (Urticaceae), a natural herb, has a long history of treating several diseases including wound healing. However, the anti-inflammatory effect of B. nivea has not been investigated. OBJECTIVE We investigated whether the 70% ethanol extract of B. nivea (Ebn) can exert anti-inflammatory activity. Several phenolic compounds of extracts were determined to provide further information on the correlation between anti-inflammatory effects and phenolic compounds. MATERIALS AND METHODS We prepared a 70% ethanol extract of B. nivea leaves and evaluated its anti-inflammatory activity (200, 400, 800, 1200 µg/mL) by measuring the secretions of nitric oxide (NO), tumor necrosis factor alpha (TNF-α) and interleukin 6 (IL-6), which were stimulated by lipopolysaccharide (LPS) in RAW264.7 macrophages. The total phenolic compounds were determined by the Folin-Ciocalteu method and major compounds were determined by HPLC. RESULTS Ebn was able to abolish the LPS-induced secretions of NO, TNF-α and IL-6. It also decreased the protein levels (IC₅₀ = 186 µg/mL) of LPS-induced inducible nitric oxide synthase (iNOS). The LPS stimulated p38, JNK and ERK phosphorylations significantly more than the controls. Surprisingly, although Ebn reduced p38 and JNK phosphorylations, it did not influence ERK phosphorylation. We found that Ebn revealed several major compounds such as chlorogenic acid (1.96 mg/100 g), rutin (46.48 mg/100 g), luteolin-7-glucoside (11.29 mg/100 g), naringin (1.13 mg/100 g), hesperidin (23.69 mg/100 g) and tangeretin (1.59 mg/100 g). DISCUSSION AND CONCLUSION Boehmeria nivea exerts an anti-inflammatory effect on macrophages by inhibiting p38 and JNK, suggesting that it may be used as a functional ingredient against inflammation.
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Affiliation(s)
- Mi Jeong Sung
- Korea Food Research Institute, Seongnam, Republic of Korea
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Wild bitter gourd increased metabolic rate and up-regulated genes related to mitochondria biogenesis and UCP-1 in mice. J Funct Foods 2013. [DOI: 10.1016/j.jff.2013.01.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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