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Li W, Zhang M, Jia X, Zhang M, Chen Y, Dong L, Huang F, Ma Q, Zhao D, Zhang R. Free and bound phenolic profiles of Radix Puerariae Thomsonii from different growing regions and their bioactivities. Food Chem X 2024; 22:101355. [PMID: 38665627 PMCID: PMC11043822 DOI: 10.1016/j.fochx.2024.101355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 03/27/2024] [Accepted: 04/02/2024] [Indexed: 04/28/2024] Open
Abstract
The free and bound phenolic profiles and their bioactivities of radix puerariae thomsonii (RPT) cultivars from 7 growing regions in China were investigated. Total phenolic and flavonoid contents were from 148.71 to 435.32 mg gallic acid equivalents /100 g dry weight and 561.93 to 826.11 mg catechin equivalents /100 g dry weight, respectively, with 20.64-38.28% and 32.77-47.29% contribution from bound fractions. Sixteen phenolic compounds were detected in RPTs. Bound fractions contributed 28.15-70.84% to the total antioxidant activities. The cultivars from Qiannan and Guangzhou showed much higher regulatory effects on carbohydrate hydrolyzing enzymes and alcohol metabolizing enzymes than the other cultivars. The bound fractions exhibited equivalent EC50 values for alcohol metabolizing enzymes and IC50 values for carbohydrate hydrolyzing enzymes to the free fractions in RPT cultivars. Therefore, bound phenolics significantly contributed to the potential health benefits of RPT. The results provided information for the utilization of RPT for health promoting purpose.
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Affiliation(s)
- Weixin Li
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, PR China
| | - Mingwei Zhang
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, PR China
| | - Xuchao Jia
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, PR China
| | - Min Zhang
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, PR China
| | - Yanxia Chen
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, PR China
| | - Lihong Dong
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, PR China
| | - Fei Huang
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, PR China
| | - Qin Ma
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, PR China
| | - Dong Zhao
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, PR China
| | - Ruifen Zhang
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, PR China
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Sharma V, Sehrawat N, Sharma A, Yadav M, Verma P, Sharma AK. Multifaceted antiviral therapeutic potential of dietary flavonoids: Emerging trends and future perspectives. Biotechnol Appl Biochem 2021; 69:2028-2045. [PMID: 34586691 DOI: 10.1002/bab.2265] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 09/24/2021] [Indexed: 12/30/2022]
Abstract
Phytochemicals are the natural biomolecules produced by plants via primary or secondary metabolism, which have been known to have many potential health benefits to human beings. Flavonoids or phytoestrogens constitute a major group of such phytochemicals widely available in variety of vegetables, fruits, herbs, tea, and so forth, implicated in a variety of bio-pharmacological and biochemical activities against diseases including bacterial, viral, cancer, inflammatory, and autoimmune disorders. More recently, these natural biomolecules have been shown to have effective antiviral properties via therapeutically active ingredients within them, acting at different stages of infection. Current review emphasizes upon the role of these flavonoids in physiological functions, prevention and treatment of viral diseases. More so the review focuses specifically upon the antiviral effects exhibited by these natural biomolecules against RNA viruses including coronaviruses. Furthermore, the article would certainly provide a lead to the scientific community for the effective therapeutic antiviral use of flavonoids using potential cost-effective tools for improvement of the pharmacokinetics, bioavailability, and biodistribution of such compounds for the concrete action along with the promotion of human health.
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Affiliation(s)
- Varruchi Sharma
- Department of Biotechnology, Sri Guru Gobind Singh College, Chandigarh, India
| | - Nirmala Sehrawat
- Department of Biotechnology, Maharishi Markandeshwar, Ambala, Haryana, India
| | - Ajay Sharma
- Department of Chemistry, Career Point University, Hamirpur, Himachal Pradesh, India
| | - Mukesh Yadav
- Department of Biotechnology, Maharishi Markandeshwar, Ambala, Haryana, India
| | - Pawan Verma
- Institute of Plant Sciences, Agricultural Research Organization (ARO), Rishon LeZion, Israel
| | - Anil K Sharma
- Department of Biotechnology, Maharishi Markandeshwar, Ambala, Haryana, India
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Wang L, Tao J, Zhao M, Jiang S. Bioconversion pathways and metabolic profile of daidzin by human intestinal bacteria using UPLC–Q-TOF/MS. Eur Food Res Technol 2021; 247:1655-64. [DOI: 10.1007/s00217-021-03736-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Ariyani W, Miyazaki W, Amano I, Hanamura K, Shirao T, Koibuchi N. Soy Isoflavones Accelerate Glial Cell Migration via GPER-Mediated Signal Transduction Pathway. Front Endocrinol (Lausanne) 2020; 11:554941. [PMID: 33250856 PMCID: PMC7672195 DOI: 10.3389/fendo.2020.554941] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 10/12/2020] [Indexed: 01/04/2023] Open
Abstract
Soybean isoflavones, such as genistein, daidzein, and its metabolite, S-equol, are widely known as phytoestrogens. Their biological actions are thought to be exerted via the estrogen signal transduction pathway. Estrogens, such as 17β-estradiol (E2), play a crucial role in the development and functional maintenance of the central nervous system. E2 bind to the nuclear estrogen receptor (ER) and regulates morphogenesis, migration, functional maturation, and intracellular metabolism of neurons and glial cells. In addition to binding to nuclear ER, E2 also binds to the G-protein-coupled estrogen receptor (GPER) and activates the nongenomic estrogen signaling pathway. Soybean isoflavones also bind to the ER and GPER. However, the effect of soybean isoflavone on brain development, particularly glial cell function, remains unclear. We examined the effects of soybean isoflavones using an astrocyte-enriched culture and astrocyte-derived C6 clonal cells. Isoflavones increased glial cell migration. This augmentation was suppressed by co-exposure with G15, a selective GPER antagonist, or knockdown of GPER expression using RNA interference. Isoflavones also activated actin cytoskeleton arrangement via increased actin polymerization and cortical actin, resulting in an increased number and length of filopodia. Isoflavones exposure increased the phosphorylation levels of FAK (Tyr397 and Tyr576/577), ERK1/2 (Thr202/Tyr204), Akt (Ser473), and Rac1/cdc42 (Ser71), and the expression levels of cortactin, paxillin and ERα. These effects were suppressed by knockdown of the GPER. Co-exposure of isoflavones to the selective RhoA inhibitor, rhosin, selective Cdc42 inhibitor, casin, or Rac1/Cdc42 inhibitor, ML-141, decreased the effects of isoflavones on cell migration. These findings indicate that soybean isoflavones exert their action via the GPER to activate the PI3K/FAK/Akt/RhoA/Rac1/Cdc42 signaling pathway, resulting in increased glial cell migration. Furthermore, in silico molecular docking studies to examine the binding mode of isoflavones to the GPER revealed the possibility that isoflavones bind directly to the GPER at the same position as E2, further confirming that the effects of the isoflavones are at least in part exerted via the GPER signal transduction pathway. The findings of the present study indicate that isoflavones may be an effective supplement to promote astrocyte migration in developing and/or injured adult brains.
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Affiliation(s)
- Winda Ariyani
- Research Fellow of Japan Society for the Promotion of Science, Tokyo, Japan
- Department of Integrative Physiology, Graduate School of Medicine, Gunma University, Maebashi, Japan
| | - Wataru Miyazaki
- Department of Integrative Physiology, Graduate School of Medicine, Gunma University, Maebashi, Japan
- Department of Bioscience and Laboratory Medicine, Graduate School of Health Science, Hirosaki University, Hirosaki, Japan
| | - Izuki Amano
- Department of Integrative Physiology, Graduate School of Medicine, Gunma University, Maebashi, Japan
| | - Kenji Hanamura
- Department of Neurobiology and Behavior, Graduate School of Medicine, Gunma University, Maebashi, Japan
| | - Tomoaki Shirao
- Department of Neurobiology and Behavior, Graduate School of Medicine, Gunma University, Maebashi, Japan
| | - Noriyuki Koibuchi
- Department of Integrative Physiology, Graduate School of Medicine, Gunma University, Maebashi, Japan
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Tzanova M, Atanasov V, Yaneva Z, Ivanova D, Dinev T. Selectivity of Current Extraction Techniques for Flavonoids from Plant Materials. Processes (Basel) 2020; 8:1222. [DOI: 10.3390/pr8101222] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Flavonoids have a broad spectrum of established positive effects on human and animal health. They find an application in medicine for disease therapy and chemoprevention, whence the interest in flavonoids increases. In addition, they are used in food and cosmetic industries as pigments and biopreservatives. Plants are an inexhaustible source of flavonoids. The most important step of plant raw material processing is extraction and isolation of target compounds. The quality of an extract and efficiency of a procedure are influenced by several factors: Plant material and pre-extracting sample preparation, type of solvent, extraction technique, physicochemical conditions, etc. The present overview discusses the common problems and key challenges of the extraction procedures and the different mechanisms for selective extraction of flavonoids from different plant sources. In summary, there is no universal extraction method and each optimized procedure is individual for the respective plants. For an extraction technique to be selective, it must combine an optimal solvent or mixture of solvents with an appropriate technique. Last but not least, its optimization is important for a variety of applications. Moreover, when the selected method needs to be standardized, it must achieve acceptable degree of repeatability and reproducibility.
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Nascimento YM, Abreu LS, Lima RL, Costa VCO, Melo JIMD, Braz-Filho R, Silva MS, Tavares JF. Rapid Characterization of Triterpene Saponins from Zornia brasiliensis by HPLC-ESI-MS/MS. Molecules 2019; 24:molecules24142519. [PMID: 31295814 PMCID: PMC6680687 DOI: 10.3390/molecules24142519] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 07/06/2019] [Accepted: 07/09/2019] [Indexed: 01/11/2023] Open
Abstract
Zornia brasiliensis Vogel (Leguminosae) is a species popularly known in Brazil as “urinária”, “urinana”, and “carrapicho”, it is popularly used as a diuretic and in the treatment of venereal diseases. A specific methodology to obtain a saponin-enriched fraction and high-performance liquid chromatography coupled with diode array detection, ion trap mass spectrometry, and TOF-MS (HPLC-DAD-ESI-MS/MS) was applied for the analysis of triterpene saponins. The MS and MS/MS experiments were carried out by ionization in negative mode. Molecular mass and fragmentation data were used to support the structural characterization of the saponins. Based on retention times, high-resolution mass determination and fragmentation, 35 oleanane-triterpene saponins were tentatively identified in Z. brasiliensis.
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Affiliation(s)
- Yuri Mangueira Nascimento
- Graduate Program in Natural and Synthetic Bioactive Products, Health Sciences Center, Universidade Federal da Paraíba, João Pessoa 58051-900, Paraíba, Brazil
| | - Lucas Silva Abreu
- Graduate Program in Natural and Synthetic Bioactive Products, Health Sciences Center, Universidade Federal da Paraíba, João Pessoa 58051-900, Paraíba, Brazil
| | - Ramon Leal Lima
- Graduate Program in Natural and Synthetic Bioactive Products, Health Sciences Center, Universidade Federal da Paraíba, João Pessoa 58051-900, Paraíba, Brazil
| | - Vicente Carlos O Costa
- Graduate Program in Natural and Synthetic Bioactive Products, Health Sciences Center, Universidade Federal da Paraíba, João Pessoa 58051-900, Paraíba, Brazil
| | - José Iranildo Miranda de Melo
- Graduate Program in Ecology and Conservation, Department of Biology, Center for Biological and Health Sciences, Campina Grande 58429-500, Paraíba, Brazil
| | - Raimundo Braz-Filho
- Center of Sciences and Technologies, Darcy Ribeiro Norte Fluminense State University, Campos dos Goytacazes 28013-600, Rio de Janeiro, Brazil
| | - Marcelo Sobral Silva
- Graduate Program in Natural and Synthetic Bioactive Products, Health Sciences Center, Universidade Federal da Paraíba, João Pessoa 58051-900, Paraíba, Brazil
| | - Josean Fechine Tavares
- Graduate Program in Natural and Synthetic Bioactive Products, Health Sciences Center, Universidade Federal da Paraíba, João Pessoa 58051-900, Paraíba, Brazil.
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Abstract
Sample urban population was assessed for consumption of legumes. Genistein and daidzein content of commonly consumed legumes was evaluated to estimate the isoflavone intake through the consumption of these legumes by selected population. Total genistein content of all legumes considered for analysis was found to be in the range of 0.60 to 8.65 mg per 100 g whereas total daidzein content was found to be in the range of 1.10 to 30.37 mg per 100 g in selected legumes. Chickpea, kabuli, whole (Cicer arietinum), pigeon pea, split, decorticated (Cajanus cajan), chickpea, split, decorticated (Cicer arietinum) showed a high amount of genistein and daidzein among selected legumes. Average isoflavone consumption by selected population was found to be 18.22 mg/d through the consumption of legumes. Consumption of pigeon pea (split, decorticated) and chickpea (split, decorticated) was found to be highest at 371.6 g/month and 329.7 g/month, and hence were found to contribute 18% and 14% to total isoflavone intake, respectively. The comparatively high content of isoflavones and inclusion as a staple in the diet have resulted in making the split, decorticated pulses (chickpea, pigeon pea, lentil, green gram, black gram) a chief isoflavone source for selected population irrespective of their demographic differences.
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Affiliation(s)
- Anuradha Deorukhkar
- a Food Engineering and Technology Department , Institute of Chemical Technology , Mumbai , India
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Lord R, Fairbourn N, Mylavarapu C, Dbeis A, Bowman T, Chandrashekar A, Banayat T, Hodges CA, Al-Nakkash L. Consuming Genistein Improves Survival Rates in the Absence of Laxative in ΔF508-CF Female Mice. Nutrients 2018; 10:E1418. [PMID: 30282922 PMCID: PMC6213472 DOI: 10.3390/nu10101418] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 09/11/2018] [Accepted: 09/26/2018] [Indexed: 11/16/2022] Open
Abstract
Genistein is a naturally occurring isoflavone found in soy. Genistein has been shown to increase the open probability of the most common cystic fibrosis (CF) disease-associated mutation, ∆F508-CFTR. Mice homozygous for the ∆F508 mutation are characterized with severe intestinal disease and require constant laxative treatment for survival. This pathology mimics the intestinal obstruction (meconium ileus) seen in some cystic fibrosis patients. This study tested whether dietary supplementation with genistein would reduce the dependence of the ∆F508 CF mouse model on laxatives for survival, thereby improving mortality rates. At weaning (21 days), homozygous ∆F508 mice were maintained on one of three diet regimens for a period of up to 65 days: normal diet, normal diet plus colyte, or genistein diet. Survival rates for males were as follows: standard diet (38%, n = 21), standard diet plus colyte (83%, n = 42) and genistein diet (60%, n = 15). Survival rates for females were as follows: standard diet (47%, n = 19), standard diet plus colyte (71%, n = 38), and genistein diet (87%, n = 15). Average weight of male mice fed genistein diet increased by ~2.5 g more (p = 0.006) compared to those with colyte treatment. Genistein diet did not change final body weight of females. Expression of intestinal SGLT-1 increased 2-fold (p = 0.0005) with genistein diet in females (no change in males, p = 0.722). Expression of GLUT2 and GLUT5 was comparable between all diet groups. Genistein diet reduced the number of goblet cells per micrometer of crypt depth in female (p = 0.0483), yet was without effect in males (p = 0.7267). The results from this study demonstrate that supplementation of diet with genistein for ~45 days increases the survival rate of female ∆F508-CF mice (precluding the requirement for laxatives), and genistein only improves weight gain in males.
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Affiliation(s)
- Ryan Lord
- Department of Physiology, AZCOM, Midwestern University, 19555 N. 59th Avenue, Glendale, AZ 85308, USA.
| | - Nathan Fairbourn
- Department of Physiology, AZCOM, Midwestern University, 19555 N. 59th Avenue, Glendale, AZ 85308, USA.
| | - Charisma Mylavarapu
- Department of Physiology, AZCOM, Midwestern University, 19555 N. 59th Avenue, Glendale, AZ 85308, USA.
| | - Ammer Dbeis
- Department of Physiology, AZCOM, Midwestern University, 19555 N. 59th Avenue, Glendale, AZ 85308, USA.
| | - Taylor Bowman
- Department of Physiology, AZCOM, Midwestern University, 19555 N. 59th Avenue, Glendale, AZ 85308, USA.
| | - Archana Chandrashekar
- Department of Physiology, AZCOM, Midwestern University, 19555 N. 59th Avenue, Glendale, AZ 85308, USA.
| | - Tatum Banayat
- Department of Physiology, AZCOM, Midwestern University, 19555 N. 59th Avenue, Glendale, AZ 85308, USA.
| | - Craig A Hodges
- Department of Genetics & Genome Sciences & Department of Pediatrics, Case Western Reserve University, 10900 Euclid Avenue, 830 BRB, Cleveland, OH 44106, USA.
| | - Layla Al-Nakkash
- Department of Physiology, AZCOM, Midwestern University, 19555 N. 59th Avenue, Glendale, AZ 85308, USA.
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Ariyani W, Iwasaki T, Miyazaki W, Yu L, Takeda S, Koibuchi N. A Possible Novel Mechanism of Action of Genistein and Daidzein for Activating Thyroid Hormone Receptor-Mediated Transcription. Toxicol Sci 2018; 164:417-427. [DOI: 10.1093/toxsci/kfy097] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Affiliation(s)
- Winda Ariyani
- Department of Integrative Physiology, Gunma University Graduate School of Medicine, Maebashi, Gunma 371-8511, Japan
| | - Toshiharu Iwasaki
- Department of Integrative Physiology, Gunma University Graduate School of Medicine, Maebashi, Gunma 371-8511, Japan
- Department of Liberal Arts and Human Development, Kanagawa University of Human Service, Yokosuka, Kanagawa 238-8522, Japan
| | - Wataru Miyazaki
- Department of Integrative Physiology, Gunma University Graduate School of Medicine, Maebashi, Gunma 371-8511, Japan
| | - Lu Yu
- Department of Integrative Physiology, Gunma University Graduate School of Medicine, Maebashi, Gunma 371-8511, Japan
- Department of Physiology, College of Basic Medical Sciences, Jilin University, Changchun 130021, China
| | - Shigeki Takeda
- Department of Physiology, College of Basic Medical Sciences, Jilin University, Changchun 130021, China
- Faculty of Science and Technology, Division of Molecular Science, Gunma University, Kiryu, Gunma 376-8515, Japan
| | - Noriyuki Koibuchi
- Department of Integrative Physiology, Gunma University Graduate School of Medicine, Maebashi, Gunma 371-8511, Japan
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Bustamante-Rangel M, Delgado-Zamarreño MM, Pérez-Martín L, Rodríguez-Gonzalo E, Domínguez-Álvarez J. Analysis of Isoflavones in Foods. Compr Rev Food Sci Food Saf 2018; 17:391-411. [DOI: 10.1111/1541-4337.12325] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Revised: 11/21/2017] [Accepted: 11/24/2017] [Indexed: 11/28/2022]
Affiliation(s)
- Myriam Bustamante-Rangel
- Dept. of Analytical Chemistry, Nutrition and Food Science, Faculty of Chemical Sciences; Univ. of Salamanca; Plaza de los Caídos s/n 37008 Salamanca Spain
| | - María Milagros Delgado-Zamarreño
- Dept. of Analytical Chemistry, Nutrition and Food Science, Faculty of Chemical Sciences; Univ. of Salamanca; Plaza de los Caídos s/n 37008 Salamanca Spain
| | - Lara Pérez-Martín
- Dept. of Analytical Chemistry, Nutrition and Food Science, Faculty of Chemical Sciences; Univ. of Salamanca; Plaza de los Caídos s/n 37008 Salamanca Spain
| | - Encarnación Rodríguez-Gonzalo
- Dept. of Analytical Chemistry, Nutrition and Food Science, Faculty of Chemical Sciences; Univ. of Salamanca; Plaza de los Caídos s/n 37008 Salamanca Spain
| | - Javier Domínguez-Álvarez
- Dept. of Analytical Chemistry, Nutrition and Food Science, Faculty of Chemical Sciences; Univ. of Salamanca; Plaza de los Caídos s/n 37008 Salamanca Spain
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Epihov DZ, Batterman SA, Hedin LO, Leake JR, Smith LM, Beerling DJ. N 2-fixing tropical legume evolution: a contributor to enhanced weathering through the Cenozoic? Proc Biol Sci 2017; 284:20170370. [PMID: 28814651 PMCID: PMC5563791 DOI: 10.1098/rspb.2017.0370] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 07/12/2017] [Indexed: 11/30/2022] Open
Abstract
Fossil and phylogenetic evidence indicates legume-rich modern tropical forests replaced Late Cretaceous palm-dominated tropical forests across four continents during the early Cenozoic (58-42 Ma). Tropical legume trees can transform ecosystems via their ability to fix dinitrogen (N2) and higher leaf N compared with non-legumes (35-65%), but it is unclear how their evolutionary rise contributed to silicate weathering, the long-term sink for atmospheric carbon dioxide (CO2). Here we hypothesize that the increasing abundance of N2-fixing legumes in tropical forests amplified silicate weathering rates by increased input of fixed nitrogen (N) to terrestrial ecosystems via interrelated mechanisms including increasing microbial respiration and soil acidification, and stimulating forest net primary productivity. We suggest the high CO2 early Cenozoic atmosphere further amplified legume weathering. Evolution of legumes with high weathering rates was probably driven by their high demand for phosphorus and micronutrients required for N2-fixation and nodule formation.
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Affiliation(s)
- Dimitar Z Epihov
- Department of Animal and Plant Sciences, University of Sheffield, Sheffield S10 2TN, UK
| | - Sarah A Batterman
- School of Geography and Priestley International Centre for Climate, University of Leeds, Leeds LS2 9JT, UK
- Smithsonian Tropical Research Institute, Balboa, Ancon, Panama
| | - Lars O Hedin
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544, USA
| | - Jonathan R Leake
- Department of Animal and Plant Sciences, University of Sheffield, Sheffield S10 2TN, UK
| | - Lisa M Smith
- Department of Animal and Plant Sciences, University of Sheffield, Sheffield S10 2TN, UK
| | - David J Beerling
- Department of Animal and Plant Sciences, University of Sheffield, Sheffield S10 2TN, UK
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Liu H, Wang L, Ma H, Guo R, Kang R, Han J, Dong Z. Coumestrol inhibits carotid sinus baroreceptor activity by cAMP/PKA dependent nitric oxide release in anesthetized male rats. Biochem Pharmacol 2014; 93:42-8. [PMID: 25449602 DOI: 10.1016/j.bcp.2014.11.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Revised: 11/02/2014] [Accepted: 11/05/2014] [Indexed: 12/16/2022]
Abstract
Phytoestrogens could offer multiple beneficial effects on the cardiovascular system. Here, we have examined the effects of coumestrol (CMT) on carotid baroreceptors activity (CBA) and the possible mechanisms in male rats. The functional parameters of carotid baroreceptors were measured by recording sinus nerve afferent discharge in anesthetized male rats with perfused isolated carotid sinus. The levels of protein expression were determined by using ELISA and Western blotting. CMT (1 to 100μmolL(-1)) inhibited CBA, which shifted the functional curve of the carotid baroreceptor to the right and downward, with a marked decrease in the peak slope and the peak integral value of carotid sinus nerve discharge in a concentration dependent manner. These effects were not blocked by a specific estrogen receptor antagonist ICI 182,780, but were completely abolished by nitric oxide (NO) synthase inhibitor l-NAME (N(G)-nitro-l-arginine methyl ester). Furthermore, a NO donor, SIN-1(3-morpholion-sydnon-imine), could potentiate these inhibitory effects of CMT. CMT stimulated the phosphorylation of Ser(1176)-eNOS (endothelial nitric oxide synthase) in a dose-dependent manner in carotid bifurcation tissue over a perfusion period of 15min. The rapid activation of eNOS by CMT was blocked by a highly selective PKA (protein kinase A) inhibitor H89. In addition, inhibition of PI3K (phosphatidylinositol-3-kinase) and ERK (extracellular signal-regulated kinase) pathways had no effect on eNOS activation by CMT. CMT inhibited CBA via eNOS activation and NO synthesis. These effects were mediated by the cAMP/PKA pathway and were unrelated to the estrogenic effect.
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Affiliation(s)
- Haitao Liu
- Department of Anesthesiology, the Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Lixuan Wang
- Department of Histology and Embryology, Hebei Medical University, Shijiazhuang, China
| | - Huijuan Ma
- Department of Physiology, Institute of Basic Medicine, Hebei Medical University, Shijiazhuang, China
| | - Rong Guo
- Department of Physiology, Institute of Basic Medicine, Hebei Medical University, Shijiazhuang, China
| | - Rongtian Kang
- Department of Anesthesiology, the Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Jianmin Han
- Department of Anesthesiology, the Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Zhenming Dong
- Department of Anesthesiology, the Second Hospital of Hebei Medical University, Shijiazhuang, China.
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Santangelo C, Varì R, Scazzocchio B, Filesi C, Masella R. Management of reproduction and pregnancy complications in maternal obesity: which role for dietary polyphenols? Biofactors 2014; 40:79-102. [PMID: 23983164 DOI: 10.1002/biof.1126] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2013] [Revised: 06/28/2013] [Accepted: 07/02/2013] [Indexed: 02/06/2023]
Abstract
Obesity is a global and dramatic public health problem; maternal obesity represents one of the main risk factors of infertility and pregnancy complications as it is associated with adverse maternal and offspring outcomes. In the last few years, adipose tissue dysfunction associated with altered adipocytokine secretion has been suggested to play a critical role in all the phases of reproductive process. Obesity is a nutrition-related disorder. In this regard, dietary intervention strategies, such as high intake of fruit and vegetables, have shown significant effects in both preserving health and counteracting obesity-associated diseases. Evidence has been provided that polyphenols, important constituents of plant-derived food, can influence developmental program of oocyte and embryo, as well as pregnancy progression by modulating several cellular pathways. This review will examine the controversial results so far obtained on adipocytokine involvement in fertility impairment and pregnancy complications. Furthermore, the different effects exerted by polyphenols on oocyte, embryo, and pregnancy development will be also taken in account.
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Affiliation(s)
- Carmela Santangelo
- Department of Veterinary Public Health and Food Safety, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy
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