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Gonçalves DF, Senger LR, Foletto JVP, Michelotti P, Soares FAA, Dalla Corte CL. Caffeine improves mitochondrial function in PINK1 B9-null mutant Drosophila melanogaster. J Bioenerg Biomembr 2023; 55:1-13. [PMID: 36494592 DOI: 10.1007/s10863-022-09952-5] [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: 04/25/2022] [Accepted: 11/30/2022] [Indexed: 12/14/2022]
Abstract
Mitochondrial dysfunction plays a central role in Parkinson's disease (PD) and can be triggered by xenobiotics and mutations in mitochondrial quality control genes, such as the PINK1 gene. Caffeine has been proposed as a secondary treatment to relieve PD symptoms mainly by its antagonistic effects on adenosine receptors (ARs). Nonetheless, the potential protective effects of caffeine on mitochondrial dysfunction could be a strategy in PD treatment but need further investigation. In this study, we used high-resolution respirometry (HRR) to test caffeine's effects on mitochondrial dysfunction in PINK1B9-null mutants of Drosophila melanogaster. PINK1 loss-of-function induced mitochondrial dysfunction in PINK1B9-null flies observed by a decrease in O2 flux related to oxidative phosphorylation (OXPHOS) and electron transfer system (ETS), respiratory control ratio (RCR) and ATP synthesis compared to control flies. Caffeine treatment improved OXPHOS and ETS in PINKB9-null mutant flies, increasing the mitochondrial O2 flux compared to untreated PINKB9-null mutant flies. Moreover, caffeine treatment increased O2 flux coupled to ATP synthesis and mitochondrial respiratory control ratio (RCR) in PINK 1B9-null mutant flies. The effects of caffeine on respiratory parameters were abolished by rotenone co-treatment, suggesting that caffeine exerts its beneficial effects mainly by stimulating the mitochondrial complex I (CI). In conclusion, we demonstrate that caffeine may improve mitochondrial function by increasing mitochondrial OXPHOS and ETS respiration in the PD model using PINK1 loss-of-function mutant flies.
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Affiliation(s)
- Débora F Gonçalves
- Centro de Ciências Naturais e Exatas, Departamento de Bioquímica e Biologia Molecular, Programa de Pós-graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Camobi, 97105- 900, Santa Maria, RS, Brazil
| | - Leahn R Senger
- Centro de Ciências Naturais e Exatas, Departamento de Bioquímica e Biologia Molecular, Programa de Pós-graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Camobi, 97105- 900, Santa Maria, RS, Brazil
| | - João V P Foletto
- Centro de Ciências Naturais e Exatas, Departamento de Bioquímica e Biologia Molecular, Programa de Pós-graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Camobi, 97105- 900, Santa Maria, RS, Brazil
| | - Paula Michelotti
- Centro de Ciências Naturais e Exatas, Departamento de Bioquímica e Biologia Molecular, Programa de Pós-graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Camobi, 97105- 900, Santa Maria, RS, Brazil
| | - Félix A A Soares
- Centro de Ciências Naturais e Exatas, Departamento de Bioquímica e Biologia Molecular, Programa de Pós-graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Camobi, 97105- 900, Santa Maria, RS, Brazil
| | - Cristiane L Dalla Corte
- Centro de Ciências Naturais e Exatas, Departamento de Bioquímica e Biologia Molecular, Programa de Pós-graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Camobi, 97105- 900, Santa Maria, RS, Brazil.
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Silva M, Brand A, Novaes F, Rezende C. Cafestol, Kahweol and Their Acylated Derivatives: Antitumor Potential, Pharmacokinetics, and Chemopreventive Profile. FOOD REVIEWS INTERNATIONAL 2022. [DOI: 10.1080/87559129.2022.2141776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- M.A.E. Silva
- Chemistry Institute, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - A.L.M. Brand
- Chemistry Institute, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - F.J.M. Novaes
- Chemistry Department, Federal University of Viçosa, Viçosa, Brazil
| | - C.M Rezende
- Chemistry Institute, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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Rathi B, Gupta S, Kumar P, Kesarwani V, Dhanda RS, Kushwaha SK, Yadav M. Anti-biofilm activity of caffeine against uropathogenic E. coli is mediated by curli biogenesis. Sci Rep 2022; 12:18903. [PMID: 36344808 PMCID: PMC9640630 DOI: 10.1038/s41598-022-23647-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 11/03/2022] [Indexed: 11/09/2022] Open
Abstract
Biofilms are assemblages of sessile microorganisms that form an extracellular matrix around themselves and mediate attachment to surfaces. The major component of the extracellular matrix of Uropathogenic E. coli and other Enterobacteriaceae are curli fibers, making biofilms robust and resistant to antimicrobials. It is therefore imperative to screen antibiofilm compounds that can impair biofilm formation. In the present study, we investigated the curli-dependent antibiofilm activity of caffeine against UPEC strain CFT073 and commensal strain E. coli K-12MG1655.Caffeine significantly reduced the biofilm formation of both UPEC and E. coli K-12 by 86.58% and 91.80% respectively at 48 mM caffeine as determined by Crystal Violet assay. These results were further confirmed by fluorescence microscopy and Scanning Electron Microscope (SEM). Caffeine significantly reduced the cytotoxicity and survivability of UPEC. Molecular docking analysis revealed a strong interaction between caffeine and curli regulator protein (Csg D) of E. coli. The qRT-PCR data also showed significant downregulation in the expression of CsgBA and the CsgDEFG operon at both 24 mM and 48 mM caffeine. The findings revealed that caffeine could inhibit E. coli biofilm formation by regulating curli assembly and thus may be used as an alternative therapeutic strategy for the treatment of chronic E. coli biofilm-related infections.
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Affiliation(s)
- Bhawna Rathi
- grid.8195.50000 0001 2109 4999Dr. B. R. Ambedkar Center for Biomedical Research, University of Delhi (North Campus), New Delhi, 110007 India
| | - Surbhi Gupta
- grid.8195.50000 0001 2109 4999Dr. B. R. Ambedkar Center for Biomedical Research, University of Delhi (North Campus), New Delhi, 110007 India
| | - Parveen Kumar
- grid.265892.20000000106344187Department of Urology, University of Alabama at Birmingham, Birmingham, AL USA
| | | | | | - Sandeep Kumar Kushwaha
- grid.508105.90000 0004 1798 2821DBT-National Institute of Animal Biotechnology (NIAB), Hyderabad, India
| | - Manisha Yadav
- grid.8195.50000 0001 2109 4999Dr. B. R. Ambedkar Center for Biomedical Research, University of Delhi (North Campus), New Delhi, 110007 India ,grid.4514.40000 0001 0930 2361Department of Clinical Sciences, Lund University, Malmö, Sweden
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Natural Intervarietal Hybrids of Coffea canephora Have a High Content of Diterpenes. BEVERAGES 2021. [DOI: 10.3390/beverages7040077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The present investigation characterized the diterpene profile of Coffea canephora coffees, which are natural intervarietal hybrids of Conilon and Robusta. The impact of genetic diversity and environment on these compounds was also evaluated. Five genotypes (clones 03, 05, 08, 25, and 66) from six growing sites in the State of Rondônia in the western Amazon (Alto Alegre dos Parecis, São Miguel do Guaporé, Nova Brasilândia do Oeste, Porto Velho, Rolim de Moura, and Alto Paraíso) were analyzed. The contents of kahweol, cafestol, and 16-O-methylcafestol in light-medium roasted coffees were assessed by UPLC. Data were analyzed by ANOVA and Tukey’s test (p ≤ 0.05). The contents of cafestol and 16-O-methylcafestol ranged from 96 to 457 mg 100 g−1 and 75 to 433 mg 100 g−1, respectively. As for kahweol, from absence up to contents of 36.9 mg 100 g−1 was observed. The diterpene profile was dependent on genetics, growing site, and the interaction between these factors. A higher variability was observed for kahweol contents. The natural intervarietal hybrid coffees stood out for their high contents of diterpenes and increased frequency of kahweol presence (77% of the samples).
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Landerer S, Kalthoff S, Strassburg CP. UDP-glucuronosyltransferases mediate coffee-associated reduction of liver fibrosis in bile duct ligated humanized transgenic UGT1A mice. Hepatobiliary Surg Nutr 2021; 10:766-781. [PMID: 35004944 DOI: 10.21037/hbsn-20-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 04/13/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND Coffee consumption has been shown to reduce the risk of liver fibrosis and is capable of inducing human UDP-glucuronosyltransferase (UGT) 1A genes. UGT1A enzymes act as indirect antioxidants catalyzing the elimination of reactive metabolites, which in turn are potent initiators of profibrotic mechanisms. The aim of this study was to analyze the role of UGT1A genes as effectors of the protective properties of coffee in bile duct ligation (BDL) induced liver fibrosis. METHODS Fourteen days BDL with and without coffee pre- and co-treatment was performed in htgUGT1A-WT and htgUGT1A-SNP mice. Hepatic UGT1A mRNA expression levels, serum bilirubin and aminotransferase activities were determined. Liver fibrosis was assessed by collagen deposition, computational analysis of Sirius red tissue staining and expression of profibrotic marker genes. Oxidative stress was measured by hepatic peroxidase concentrations and immunofluorescence staining. RESULTS UGT1A transcription was differentially activated in the livers of htgUGT1A-WT mice after BDL, in contrast to a reduced or absent induction in the presence of SNPs. Co-treated (coffee + BDL) htgUGT1A-WT-mice showed significantly increased UGT1A expression and protein levels and a considerably higher induction compared to water drinking WT mice (BDL), whereas in co-treated htgUGT1A-SNP mice absolute expression levels remained below those observed in htgUGT1A-WT mice. Collagen deposition, oxidative stress and the expression of profibrotic markers inversely correlated with UGT1A expression levels in htgUGT1A-WT and SNP mice after BDL and coffee + BDL co-treatment. CONCLUSIONS Coffee exerts hepatoprotective and antioxidative effects via activation of UGT1A enzymes. Attenuated hepatic fibrosis as a result of coffee-mediated UGT1A induction during cholestasis was detected, while the protective action of coffee was lower in a common low-function UGT1A SNP haplotype present in 10% of the Caucasian population. This study suggests that coffee consumption might constitute a potential strategy to support the conventional treatment of cholestasis-related liver diseases.
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Affiliation(s)
- Steffen Landerer
- Department of Internal Medicine I, University Hospital Bonn, Venusberg-Campus 1, Bonn, Germany
| | - Sandra Kalthoff
- Department of Internal Medicine I, University Hospital Bonn, Venusberg-Campus 1, Bonn, Germany
| | - Christian P Strassburg
- Department of Internal Medicine I, University Hospital Bonn, Venusberg-Campus 1, Bonn, Germany
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Chu W, Ho CS, Liao PH. Comparison of different predicting models to assist the diagnosis of spinal lesions. Inform Health Soc Care 2021; 47:92-102. [PMID: 34114923 DOI: 10.1080/17538157.2021.1939355] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In neurosurgical or orthopedic clinics, the differential diagnosis of lower back pain is often time-consuming and costly. This is especially true when there are several candidate diagnoses with similar symptoms that might confuse clinic physicians. Therefore, methods for the efficient differential diagnosis can help physicians to implement the most appropriate treatment and achieve the goal of pain reduction for their patients.In this study, we applied data-mining techniques from artificial intelligence technologies, in order to implement a computer-aided auxiliary differential diagnosis for a herniated intervertebral disc, spondylolithesis, and spinal stenosis. We collected questionnaires from 361 patients and analyzed the resulting data by using a linear discriminant analysis, clustering, and artificial neural network techniques to construct a related classification model and to compare the accuracy and implementation efficiency of the different methods.Our results indicate that a linear discriminant analysis has obvious advantages for classification and diagnosis, in terms of accuracy.We concluded that the judgment results from artificial intelligence can be used as a reference for medical personnel in their clinical diagnoses. Our method is expected to facilitate the early detection of symptoms and early treatment, so as to reduce the social resource costs and the huge burden of medical expenses, and to increase the quality of medical care.
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Affiliation(s)
- William Chu
- Department of Orthopedic, Cheng Hsin General Hospital, Taipei, Taiwan.,School of Nursing, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan
| | - Chen-Shie Ho
- Department of Healthcare Administration, Oriental Institute of Technology, Taipei, Taiwan
| | - Pei-Hung Liao
- School of Nursing, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan
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7
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Böger B, Mori A, Viegas M, Benassi M. Quality attributes of roasted Arabica coffee oil extracted by pressing: composition, antioxidant activity, sun protection factor and other physical and chemical parameters. GRASAS Y ACEITES 2021. [DOI: 10.3989/gya.1144192] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
This research reports a comprehensive characterization of the composition profile and physical and chemical characteristics of roasted Arabica coffee oil obtained by mechanical pressing. The oil presented a peroxide value of 3.21 meq·kg-1 and an acid value of 7.3 mg KOH·g-1. A higher proportion of unsaturated fatty acids (58%), predominantly linoleic (L) and palmitic (P) acids, was observed; PLL and PLP were estimated as the main triacylglycerols. The oil was characterized by high contents in diterpenes and tocopherols (3720 and 913 mg·100g-1, respectively), the presence of caffeine and chlorogenic acids, as well as a high sun protection factor (9.7) and ABTS free radical-scavenging capacity (12.5 mg Trolox·mL-1). Among the 35 volatile compounds studied, furfurythiol and pyrazines were the main components of the oil. These properties showed that roasted coffee oil has good potential for use in food and cosmetics.
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8
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Caffeine effects on systemic metabolism, oxidative-inflammatory pathways, and exercise performance. Nutr Res 2020; 80:1-17. [DOI: 10.1016/j.nutres.2020.05.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 04/11/2020] [Accepted: 05/09/2020] [Indexed: 01/06/2023]
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9
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Park JB. Kahweol Found in Coffee Inhibits IL-2 Production Via Suppressing the Phosphorylations of ERK and c-Fos in Lymphocytic Jurkat Cells. J Diet Suppl 2020; 18:433-443. [PMID: 32583704 DOI: 10.1080/19390211.2020.1784347] [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: 12/13/2022]
Abstract
Interleukin-2 (IL-2) is a cytokine involved in the development and maturation of the subsets of T cells, critically associated with the progression of several immune-related diseases (e.g. liver disease, bowel disease). Interestingly, a recent study suggests that coffee may contain several compounds to inhibit IL-2 expression in activated T-lymphocytic cells. However, there is little information about the potential effects of several coffee compounds (e.g. kahweol, cafestol, trigonelline, niacin and chlorogenic acids) on IL-2 expression in activated T-lymphocytic cells. Therefore, in this paper, their effects on IL-2 expression were evaluated in PHA/PMA-activated lymphocytic Jurkat cells. Among the tested compounds, only kahweol and cafestol were able to reduce IL-2 production significantly in the cells (p < 0.05). However, the inhibition of kahweol was a bit stronger than cafestol. Therefore, the molecular mechanism underlying the IL-2 inhibition was investigated using kahweol. Kahweol (≤ 20 µM) was able to inhibit the phosphorylations of ERK and c-Fos (p < 0.05) with little effects on p38 and JNK phosphorylations in the Jurkat cells. Subsequently, the inhibition of ERK/c-Fos led to the reduction of IL-2 mRNA expression in the Jurkat cells. In summary, the data suggest that kahweol may be a potential coffee compound to reduce IL-2 production via inhibiting the phosphorylations of ERK/c-Fos in PHA/PMA-activated lymphocytic Jurkat cells.
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Affiliation(s)
- Jae B Park
- Diet, Genomics, and Immunology Laboratory, BHNRC, ARS, USDA, Beltsville, MD, USA
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10
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Moeenfard M, Alves A. New trends in coffee diterpenes research from technological to health aspects. Food Res Int 2020; 134:109207. [PMID: 32517949 DOI: 10.1016/j.foodres.2020.109207] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 03/09/2020] [Accepted: 03/28/2020] [Indexed: 01/03/2023]
Abstract
The coffee oil is rich in diterpenes, mainly cafestol and kahweol, which are predominantly present in the esterified form with different fatty acids. Despite their beneficial effects including anti-angiogenic and anti-carcinogenic properties, they have been also associated with negative consequences such as elevation of blood cholesterol. Considering the coffee, it is an important human beverage with biological effects, including potentially health benefits or risks. Therefore, it may have important public health implications due to its widespread massive consumption, with major incidence in the varieties Arabica and Robusta. According to literatures, cafestol (182-1308 mg/100 g), kahweol (0-1265 mg/100 g) and 16-O-methycafestol (0-223 mg/100 g) are the main diterpenes in green and roasted coffee beans. Nevertheless, the coffee species, genetic background, and technological parameters like roasting and brewing have a clear effect on coffee diterpene content. Besides that, bibliographic data indicated that limited studies have specifically addressed the recent analytical techniques used for determination of this class of compounds, being HPLC and GC the most common approaches. For these reasons, this review aimed to actualize the occurrence and the profile of diterpenes in coffee matrices, focusing on the effect of species, roasting and brewing and on the other hand, introduce the current state on knowledge regarding coffee diterpenes determination which are nowadays highly regarded and widely used. In general, since diterpenes exhibit different health effects depending on their consumption dosage, several parameters needs to be carefully analyzed and considered when comparing the results.
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Affiliation(s)
- Marzieh Moeenfard
- Department of Food Science and Technology, Faculty of Agriculture, Ferdowsi University of Mashhad, Azadi Square, PO Box: 9177948944, Mashhad, Iran.
| | - Arminda Alves
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
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Abstract
The liver is one of the most complex organs of the human body and is involved in various metabolic processes. Due to its anatomical proximity to the digestive tract, its blood flow, and its contribution to the detoxification process, the liver is susceptible to a wide variety of disorders. Hepatic diseases can be caused by alcoholism, viral infections, malnutrition and xenobiotics, which result in a high frequency of patients with liver disease and subsequent increase in the number of deaths from these diseases, for which adequate treatments are not yet available. Therefore, the search for new alternatives to treat these liver conditions is mandatory. In recent decades, there has been an increase in interest in medicinal herbs due to their safety and hepatoprotective properties that arise from their anti-inflammatory, antioxidant, antifibrotic, antiviral, immunomodulatory and anticancer properties. Epidemiological and clinical studies have shown that the consumption of these compounds is associated with a decrease in the risk of developing liver diseases; thus, medicinal herbs have emerged as a viable option for the treatment of these hepatic pathologies. However, more basic and clinical studies are needed before reaching a final recommendation to treat human liver diseases. This review provides molecular and clinical information on some natural compounds and medicinal herbs that have hepatoprotective effects and could be useful for the treatment of hepatic disorders.
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12
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Makwana H, Pandya D. Bioactivity-guided isolation, characterization, and estimation of esculetin – A Potential Marker from Launaea pinnatifida cass. Pharmacogn Mag 2020. [DOI: 10.4103/pm.pm_264_20] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Hu GL, Wang X, Zhang L, Qiu MH. The sources and mechanisms of bioactive ingredients in coffee. Food Funct 2019; 10:3113-3126. [PMID: 31166336 DOI: 10.1039/c9fo00288j] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Coffee bioactive components include caffeine, chlorogenic acids (CGAs), trigonelline, tryptophan alkaloids, diterpenes and other secondary metabolites. During roasting, coffee metabolites undergo complex Maillard reactions, producing melanoidins and other degradation products, the most controversial among which is acrylamide, an ingredient widely found in baked food and listed as a second class carcinogen. Green and roasted coffee ingredients have good biological activities for the prevention of cardiovascular disease, and antibacterial, anti-diabetic, neuroprotection, and anti-cancer activities. To better understand the relationship between coffee ingredients and human health, and to effectively use the active ingredients, it is essential to understand the sources of coffee active ingredients and their mechanisms of action in the organism. This paper systematizes the available information and provides a critical overview of the sources of coffee active ingredients and the mechanisms of action in vivo or in vitro, and their combined effects on common human diseases.
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Affiliation(s)
- G L Hu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China.
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Chook JB, Ngeow YF, Tee KK, Lee JWT, Mohamed R. Increased Coffee Intake Reduces Circulating HBV DNA and HBsAg Levels in HBeAg-Negative Infection: A Cohort Study. Viruses 2019; 11:v11090808. [PMID: 31480588 PMCID: PMC6783832 DOI: 10.3390/v11090808] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 08/01/2019] [Accepted: 08/03/2019] [Indexed: 02/07/2023] Open
Abstract
Coffee is hepatoprotective and potentially antiviral; however, its anti-hepatitis B virus (anti-HBV) property is not known in humans. This study investigated the influence of coffee drinking behaviour as well as clinical and biochemical profiles of hepatitis B e antigen (HBeAg) negative participants on circulating HBV DNA and hepatitis B surface antigen (HBsAg) levels at a 24-week interval. Exactly 114 chronically HBV-infected adult participants were enrolled from the University of Malaya Medical Centre (UMMC), Malaysia. A significant reduction of HBV DNA level was observed in those drinking three or more cups of coffee per day, with a median reduction of 523 IU/mL (P = 0.003). Reduction of HBsAg level was observed in those drinking two cups per day, with a median reduction of 37 IU/mL (P < 0.001). Multivariate analysis showed that increased coffee intake (P = 0.015) and lower ALT level (P = 0.033) were the significant predictors for a lower HBV DNA level, whereas increased coffee intake (P = 0.002) and having a family history of HBV infection (P = 0.021) were the significant predictors for a lower HBsAg level. These data suggest that drinking three cups or more coffee per day reduces circulating HBV DNA and HBsAg levels.
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Affiliation(s)
- Jack Bee Chook
- Department of Medical Sciences (DMS), School of Healthcare and Medical Sciences (SHMS), Sunway University, Bandar Sunway, Selangor Darul Ehsan 47500, Malaysia.
| | - Yun Fong Ngeow
- Department of Pre-Clinical Sciences, Faculty of Medicine and Health Sciences, Universiti Tunku Abdul Rahman, Bandar Sungai Long, Selangor 43000, Malaysia
| | - Kok Keng Tee
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Jamie Wan Ting Lee
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Rosmawati Mohamed
- Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
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Ren Y, Wang C, Xu J, Wang S. Cafestol and Kahweol: A Review on Their Bioactivities and Pharmacological Properties. Int J Mol Sci 2019; 20:ijms20174238. [PMID: 31480213 PMCID: PMC6747192 DOI: 10.3390/ijms20174238] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 08/14/2019] [Accepted: 08/18/2019] [Indexed: 12/16/2022] Open
Abstract
Cafestol and kahweol are natural diterpenes extracted from coffee beans. In addition to the effect of raising serum lipid, in vitro and in vivo experimental results have revealed that the two diterpenes demonstrate multiple potential pharmacological actions such as anti-inflammation, hepatoprotective, anti-cancer, anti-diabetic, and anti-osteoclastogenesis activities. The most relevant mechanisms involved are down-regulating inflammation mediators, increasing glutathione (GSH), inducing apoptosis of tumor cells and anti-angiogenesis. Cafestol and kahweol show similar biological activities but not exactly the same, which might due to the presence of one conjugated double bond on the furan ring of the latter. This review aims to summarize the pharmacological properties and the underlying mechanisms of cafestol-type diterpenoids, which show their potential as functional food and multi-target alternative medicine.
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Affiliation(s)
- Yaqi Ren
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Chunlan Wang
- Key Laboratory of Sustainable Development of Polar Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences; Laboratory for Marine Drugs and Byproducts of Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, China
| | - Jiakun Xu
- Key Laboratory of Sustainable Development of Polar Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences; Laboratory for Marine Drugs and Byproducts of Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, China.
| | - Shuaiyu Wang
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
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16
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Valduga AT, Gonçalves IL, Magri E, Delalibera Finzer JR. Chemistry, pharmacology and new trends in traditional functional and medicinal beverages. Food Res Int 2018; 120:478-503. [PMID: 31000264 DOI: 10.1016/j.foodres.2018.10.091] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 10/12/2018] [Accepted: 10/30/2018] [Indexed: 12/31/2022]
Abstract
Functional and medicinal beverages consumption plays an important role in human health, considering that metabolites, with a wide range of pharmacological effects, are inserted in the human diet. Nowadays, the most consumed beverages are obtained from Camellia sinensis leaves and coffee grain processing, and contain different classes of polyphenols and phenolic acids in their phytochemical composition. Besides C. sinensis and coffee, numerous plants have been receiving attention due to their phytochemical composition and pharmacological effects, such as yerba mate, hibiscus, chamomile, lemongrass, fennel and mentha. Furthermore, atomized or lyophilized medicinal plant extracts can be employed in many beverage formulations and the consumption of these products is an excellent delivery means for nutrients and bioactive compounds, such as: minerals, vitamins, terpenes, antioxidants, saponins, alkaloids and polysaccharides. Innovation in food processing in order to insert functional and medicinal beverages in the human diet poses a challenge for the coming years. The technological development of new processing forms and use of plants with bioactive metabolites could be an important tool in relation to this proposal. In this context, this review has aimed to summarize and analyze pharmacological, phytochemistry and technological aspects of species with classical ethnobotanical and traditional use.
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Affiliation(s)
- Alice Teresa Valduga
- Programa de Pós-graduação em Ecologia, Universidade Regional Integrada do Alto Uruguai e das Missões - URI, Campus Erechim, Avenida Sete de Setembro, 1621, CEP 99700-000, Erechim, RS, Brazil.
| | - Itamar Luís Gonçalves
- Programa de Pós-graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, CEP 90610-000 Porto Alegre, RS, Brazil; Curso de Farmácia, Universidade Regional Integrada do Alto Uruguai e das Missões - URI, Campus Erechim, Avenida Sete de Setembro, 1621, CEP 99700-000 Erechim, RS, Brazil.
| | - Ederlan Magri
- Programa de Pós-graduação em Ecologia, Universidade Regional Integrada do Alto Uruguai e das Missões - URI, Campus Erechim, Avenida Sete de Setembro, 1621, CEP 99700-000, Erechim, RS, Brazil; Programa de Pós-graduação em Ciências do Solo, Universidade Federal do Paraná, Rua dos Funcionários, 1540 - Juvevê, CEP 80035-050, Curitiba, PR, Brazil.
| | - José Roberto Delalibera Finzer
- Programa de Pós-graduação em Engenharia Química, Universidade de Uberaba-UNIUBE, Campus Aeroporto, Av. Nenê Sabino 1802, CEP 38055-500 Uberaba, MG, Brazil.
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Wang X, Meng Q, Peng X, Hu G, Qiu M. Identification of new diterpene esters from green Arabica coffee beans, and their platelet aggregation accelerating activities. Food Chem 2018; 263:251-257. [DOI: 10.1016/j.foodchem.2018.04.081] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 04/10/2018] [Accepted: 04/20/2018] [Indexed: 12/12/2022]
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18
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Beder-Belkhiri W, Zeghichi-Hamri S, Kadri N, Boulekbache-Makhlouf L, Cardoso S, Oukhmanou-Bensidhoum S, Madani K. Hydroxycinnamic acids profiling, in vitro evaluation of total phenolic compounds, caffeine and antioxidant properties of coffee imported, roasted and consumed in Algeria. MEDITERRANEAN JOURNAL OF NUTRITION AND METABOLISM 2018. [DOI: 10.3233/mnm-17181] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUD: Coffee is the most popular beverages consumed worldwide. It is an important source of antioxidants that can inhibit harmful effects of free radicals. OBJECTIVE: Comparative analysis of imported, roasted and consumed coffee in Algeria. METHODS: Investigation of the hydroxycinnamic acids profile of dark roasted coffee beans UHPLC-DAD-ESI-MSn analysis and in vitro evaluation of total phenolic compounds (TPC), caffeine and antioxidant activity using DPPH, ABTS, reducing power and phosphomolybdum methods in green and roasted Arabica and Robusta coffees beans and in coffee brews (Moka, Turk and Filter) prepared from a blend of Arabica and Robusta 20:80. RESULTS: Arabica and Robusta dark roasted beans had similar chromatographic profiles, being rich in caffeoylquinic acid and feruloylquinic acid isomers. Compared to green beans, roasted coffee beans had higher amounts of TPC while caffeine drastically decreased. The antioxidant activity increased after roasting, while the reducing activity was decreased. Filter coffee showed the highest levels of TPC and caffeine (0.69±0.05 g GAE/100 g, 0.96±0.08 mg/g respectively), which exhibits the higher reducing activity for the iron (III) and molybdate with 0.45±0.01 g GAE/100 g, 134.30±2.38 mg GAE/100 g, respectively. However, the Turk coffee exhibited the highest antiradical activity with 73.34% and 83.63% towards DPPH and ABTS, respectively. Significant correlations were recorded between TPC, caffeine and reducing power (r = 0.89) and (r = 0.97) respectively. CONCLUSION Despite the high roasting degree applied to green coffee beans, the consumed coffee constitute an important source of chlorogenic acids and its derivatives with high antioxidant potential that are beneficial for human health.
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Affiliation(s)
- Wassila Beder-Belkhiri
- Laboratoire de Biomathématiques, Biophysique, Biochimie, et Scientométrie (L3BS) Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, 06000 Bejaia, Algérie
- Centre de Recherche en Analyse Physico-Chimique (CRAPC), Division Agroalimentaire, 42000 Tipaza, Algérie
| | - Sabrina Zeghichi-Hamri
- Laboratoire de Biomathématiques, Biophysique, Biochimie, et Scientométrie (L3BS) Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, 06000 Bejaia, Algérie
| | - Nabil Kadri
- Laboratoire de Biomathématiques, Biophysique, Biochimie, et Scientométrie (L3BS) Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, 06000 Bejaia, Algérie
- Faculté des Sciences de la Nature et de la Vie et des Sciences de la Terre, Université de Bouira, 10000 Bouira, Algérie
| | - Lila Boulekbache-Makhlouf
- Laboratoire de Biomathématiques, Biophysique, Biochimie, et Scientométrie (L3BS) Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, 06000 Bejaia, Algérie
| | - Susana Cardoso
- Department of Chemistry, QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Sonia Oukhmanou-Bensidhoum
- Laboratoire de Biomathématiques, Biophysique, Biochimie, et Scientométrie (L3BS) Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, 06000 Bejaia, Algérie
| | - Khodir Madani
- Laboratoire de Biomathématiques, Biophysique, Biochimie, et Scientométrie (L3BS) Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, 06000 Bejaia, Algérie
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19
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Shi A, Shi H, Wang Y, Liu X, Cheng Y, Li H, Zhao H, Wang S, Dong L. Activation of Nrf2 pathway and inhibition of NLRP3 inflammasome activation contribute to the protective effect of chlorogenic acid on acute liver injury. Int Immunopharmacol 2017; 54:125-130. [PMID: 29128856 DOI: 10.1016/j.intimp.2017.11.007] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 10/30/2017] [Accepted: 11/05/2017] [Indexed: 12/18/2022]
Abstract
Chlorogenic acid (CGA), a kind of polyphenol found in coffee, fruits and vegetables, has potent anti-oxidant and anti-inflammatory properties. Our previous studies showed CGA could efficiently alleviate liver fibrosis in rats. However, whether CGA regulates nuclear factor erythroid-2-related factor 2 (Nrf2) anti-oxidant pathway and NLRP3 inflammasome activation and protects against carbon tetrachloride (CCl4)-induced acute liver injury are unknown. We found that CGA could increase Nrf2 activation and expression of Nrf2-related anti-oxidant genes, including HO-1, NQO1 and GCLC. Pretreatment with CGA could reduce CCl4-induced elevation of serum transaminases and alleviate liver pathological abnormalities. CGA also reversed CCl4-induced increase in MDA level and decrease in the levels of GSH, SOD and CAT in liver tissues. Meanwhile, CGA inhibited NLRP3 inflammasome activation, as indicated by the reduced protein expression of NLRP3, Pro-Caspase-1, Caspase-1, Pro-IL-1β and IL-1β. Moreover, CGA reduced serum levels and liver mRNA expression of TNF-α, IL-6 and IL-1β. These results demonstrate that CGA protects against CCl4-induced acute liver injury probably through enhancing Nrf2-mediated anti-oxidant pathway and inhibiting NLRP3 inflammasome activation.
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Affiliation(s)
- Ameng Shi
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Haitao Shi
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China.
| | - Yan Wang
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Xin Liu
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Yan Cheng
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Hong Li
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Hongli Zhao
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Shuangni Wang
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Lei Dong
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
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吴 兰, 刘 文. 肝纤维化逆转机制的研究进展及治疗概况. Shijie Huaren Xiaohua Zazhi 2017; 25:2123-2132. [DOI: 10.11569/wcjd.v25.i23.2123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
肝纤维化是肝脏对慢性损伤的一种修复反应, 多是持续性肝脏损伤或纤维化刺激因子刺激产生的共有病理改变, 是一项严重的全球性健康难题. 近年来临床研究发现, 由病毒性肝炎造成肝纤维化或肝硬化的患者, 在成功接受病毒性肝炎治疗后, 其肝纤维化甚至肝硬化发生了逆转现象. 因此研究和了解肝纤维化逆转的机制有利于发现新的针对肝纤维化的治疗靶向. 本文就近年来有关肝纤维化逆转机制的研究以及治疗概况作一综述, 以期为肝纤维化的研究提供帮助.
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21
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Correa LJ, Ruiz RY, Moreno FL. Effect of falling-film freeze concentration on bioactive compounds in aqueous coffee extract. J FOOD PROCESS ENG 2017. [DOI: 10.1111/jfpe.12606] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Lady J. Correa
- Process Design and Management; Universidad de La Sabana; Km 7 Autopista Norte de Bogotá, Chia Colombia
| | - Ruth Y. Ruiz
- Agri-Industrial Process Engineering; Universidad de La Sabana; Km 7 Autopista Norte de Bogotá, Chia Colombia
| | - Fabian L. Moreno
- Agri-Industrial Process Engineering; Universidad de La Sabana; Km 7 Autopista Norte de Bogotá, Chia Colombia
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Abstract
There is great geographical variation in the distribution of hepatocellular carcinoma (HCC), with the majority of all cases worldwide found in the Asia–Pacific region, where HCC is one of the leading public health problems. Since the “Toward Revision of the Asian Pacific Association for the Study of the Liver (APASL) HCC Guidelines” meeting held at the 25th annual conference of the APASL in Tokyo, the newest guidelines for the treatment of HCC published by the APASL has been discussed. This latest guidelines recommend evidence-based management of HCC and are considered suitable for universal use in the Asia–Pacific region, which has a diversity of medical environments.
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23
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Heath RD, Brahmbhatt M, Tahan AC, Ibdah JA, Tahan V. Coffee: The magical bean for liver diseases. World J Hepatol 2017; 9:689-696. [PMID: 28596816 PMCID: PMC5440772 DOI: 10.4254/wjh.v9.i15.689] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Revised: 03/11/2017] [Accepted: 04/20/2017] [Indexed: 02/06/2023] Open
Abstract
Coffee has long been recognized as having hepatoprotective properties, however, the extent of any beneficial effect is still being elucidated. Coffee appears to reduce risk of hepatocellular carcinoma, reduce advancement of fibrotic disease in a variety of chronic liver diseases, and perhaps reduce ability of hepatitis C virus to replicate. This review aims to catalog the evidence for coffee as universally beneficial across a spectrum of chronic liver diseases, as well as spotlight opportunities for future investigation into coffee and liver disease.
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Arauz J, Zarco N, Hernández-Aquino E, Galicia-Moreno M, Favari L, Segovia J, Muriel P. Coffee consumption prevents fibrosis in a rat model that mimics secondary biliary cirrhosis in humans. Nutr Res 2017; 40:65-74. [PMID: 28473062 DOI: 10.1016/j.nutres.2017.03.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 03/03/2017] [Accepted: 03/12/2017] [Indexed: 12/25/2022]
Abstract
Investigations demonstrated that oxidative stress plays an important role in injury promotion in cholestatic liver disease. We hypothesized that coffee attenuates cholestasis-induced hepatic necrosis and fibrosis via its antioxidant, anti-inflammatory, and antifibrotic properties. The major aim of this study was to evaluate the hepatoprotective properties of coffee and caffeine in a model of chronic bile duct ligation (BDL) in male Wistar rats. Liver injury was induced by 28-day BDL, and conventional coffee, decaffeinated coffee, or caffeine was administered daily. After treatment, the hepatic oxidative status was estimated by measuring lipid peroxidation, the reduced to oxidized glutathione ratio, and glutathione peroxidase. Fibrosis was assessed by measuring the liver hydroxyproline content. The transforming growth factor-β, connective tissue growth factor, α-smooth muscle actin, collagen 1, and interleukin-10 proteins and mRNAs were measured by Western blot and polymerase chain reaction, respectively. Conventional coffee suppressed most of the changes produced by BDL; however, caffeine showed better antifibrotic effects. Coffee demonstrated antioxidant properties by restoring the redox equilibrium, and it also prevented the elevation of liver enzymes as well as hepatic glycogen depletion. Interestingly, coffee and caffeine administration prevented collagen increases. Western blot assays showed decreased expression levels of transforming growth factor-β, connective tissue growth factor, α-smooth muscle actin, and collagen 1 in the coffee- and caffeine-treated BDL groups. Similarly, coffee decreased the mRNA levels of these proteins. We conclude that coffee prevents liver cirrhosis induced by BDL by attenuating the oxidant processes, blocking hepatic stellate cell activation, and downregulating the main profibrotic molecules involved in extracellular matrix deposition.
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Affiliation(s)
- Jonathan Arauz
- Department of Pharmacology, School of Medicine, Autonomous University of Baja California, Mexicali, Baja California, Mexico
| | - Natanael Zarco
- Department of Physiology, Biophysics and Neuroscience, Center for Research and Advanced Studies of the IPN, México City, Mexico
| | - Erika Hernández-Aquino
- Department of Pharmacology, Center for Research and Advanced Studies of the IPN, México City, Mexico
| | - Marina Galicia-Moreno
- Department of Pharmacology, School of Medicine, Autonomous University of Baja California, Mexicali, Baja California, Mexico
| | - Liliana Favari
- Department of Pharmacology, Center for Research and Advanced Studies of the IPN, México City, Mexico
| | - José Segovia
- Department of Physiology, Biophysics and Neuroscience, Center for Research and Advanced Studies of the IPN, México City, Mexico
| | - Pablo Muriel
- Department of Pharmacology, Center for Research and Advanced Studies of the IPN, México City, Mexico.
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26
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Quantum chemical exploration on the metabolic mechanisms of caffeine by flavin-containing monooxygenase. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.03.091] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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27
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Moeenfard M, Cortez A, Machado V, Costa R, Luís C, Coelho P, Soares R, Alves A, Borges N, Santos A. Anti-Angiogenic Properties of Cafestol and Kahweol Palmitate Diterpene Esters. J Cell Biochem 2016; 117:2748-2756. [PMID: 27129115 DOI: 10.1002/jcb.25573] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Accepted: 04/21/2016] [Indexed: 12/13/2022]
Abstract
Epidemiological studies support the association of coffee-specific diterpenes, with various beneficial health effects. Although anti-antiangiogenic properties of free cafestol and kahweol have been recently described, available data regarding their esterified form, in particular palmitate esters as the main diterpene esters present in coffee, are still rare. Given that angiogenesis plays an important role in many pathological conditions, including cancer growth and metastasis, this study aimed to assess and compare the potential anti-angiogenic effects of cafestol palmitate (CP) and kahweol palmitate (KP) in an in vitro angiogenesis model. According to our findings, both compounds inhibited angiogenesis steps on human microvascular endothelial cells (HMVECs), although a more significant effect was observed for KP. Compared to control, HMVECs viability decreased in a dose-dependent manner upon incubation either with CP or KP. Concentrations of 75 and 100 μM of each compound were cytotoxic. Cell proliferation was also dramatically reduced by both diterpene esters at 50 μM, although KP had a stronger inhibitory effect. However, CP and KP did not induce apoptosis on HMVECs. Both compounds reduced cell migration, but this effect was only statistically significant after KP incubation. Inhibition of VEGFR2 expression and its downstream effector Akt, but not Erk, was also observed in CP- and KP-treated HMVECs. These findings were confirmed using ELISA assay for phosphorylated (active) VEGFR-2. Taken together, these data indicate that both CP and KP can be considered potent compounds against angiogenesis-dependent disorders. Our findings further indicate that KP exerts more potent anti-angiogenic effects than CP, in most of assays. J. Cell. Biochem. 117: 2748-2756, 2016. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Marzieh Moeenfard
- LEPABE, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Alice Cortez
- Faculty of Medicine, Department of Biochemistry, University of Porto, Al. Prof. Hernâni Monteiro, 4200-319, Porto, Portugal.,I3S-Instituto de Investigação e Inovação em Saúde, Porto, Portugal
| | - Vera Machado
- Faculty of Medicine, Department of Biochemistry, University of Porto, Al. Prof. Hernâni Monteiro, 4200-319, Porto, Portugal.,I3S-Instituto de Investigação e Inovação em Saúde, Porto, Portugal
| | - Raquel Costa
- Faculty of Medicine, Department of Biochemistry, University of Porto, Al. Prof. Hernâni Monteiro, 4200-319, Porto, Portugal.,I3S-Instituto de Investigação e Inovação em Saúde, Porto, Portugal
| | - Carla Luís
- Faculty of Medicine, Department of Biochemistry, University of Porto, Al. Prof. Hernâni Monteiro, 4200-319, Porto, Portugal.,I3S-Instituto de Investigação e Inovação em Saúde, Porto, Portugal
| | - Pedro Coelho
- Faculty of Medicine, Department of Biochemistry, University of Porto, Al. Prof. Hernâni Monteiro, 4200-319, Porto, Portugal.,I3S-Instituto de Investigação e Inovação em Saúde, Porto, Portugal.,Ciências Químicas e Biomoléculas, Escola Superior de Tecnologias da Saúde do Porto, Instituto Politécnico do Porto, Porto, Portugal
| | - Raquel Soares
- Faculty of Medicine, Department of Biochemistry, University of Porto, Al. Prof. Hernâni Monteiro, 4200-319, Porto, Portugal. .,I3S-Instituto de Investigação e Inovação em Saúde, Porto, Portugal.
| | - Arminda Alves
- LEPABE, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Nuno Borges
- Faculdade de Ciências da Nutrição e Alimentação, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Alejandro Santos
- I3S-Instituto de Investigação e Inovação em Saúde, Porto, Portugal.,Faculdade de Ciências da Nutrição e Alimentação, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
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28
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El-Lakkany NM, Hendawy AS, Seif El-Din SH, Ashour AA, Atta R, Abdel-Aziz AAH, Mansour AM, Botros SS. Bioavailability of paracetamol with/without caffeine in Egyptian patients with hepatitis C virus. Eur J Clin Pharmacol 2016; 72:573-82. [PMID: 26888096 DOI: 10.1007/s00228-016-2025-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Accepted: 02/09/2016] [Indexed: 10/22/2022]
Abstract
PURPOSE This study investigates the involvement of liver dysfunction in the modulation of paracetamol pharmacokinetic profile in genotype-4 HCV patients treated with either paracetamol alone (Para) or in combination with caffeine (Para-Caf). METHODS Twenty healthy volunteers and 20 Child-Pugh B HCV patients, each divided into two equal subgroups, were examined, whose liver/kidney functions were correlated with their main clinical manifestation. After an overnight fasting, healthy and hepatic subjects received either a single dose of Para (1000 mg paracetamol) or Para-Caf (1000 mg paracetamol/130 mg caffeine). Two milliliters of saliva samples were collected prior to and at different time-intervals after drug administration and analyzed using HPLC. RESULTS There was a noticeable increase in the mean concentration time profile of salivary paracetamol concentrations in hepatic patients, with concomitant decrease in paracetamol clearance (CLT), along with induction in the primary pharmacokinetic (PK) parameters, C max, AUC(0-8 h) and AUC(0-∞) (by about 95, 82, and 64 %, respectively, after treatment with Para, and 98, 96, and 101 %, respectively, after treatment with Para-Caf), when compared with the corresponding parameters in healthy subjects. Additionally, the healthy subjects treated with Para-Caf exhibited bioinequivalent increase in C max, K a, and t 1/2 with decrease in T max when compared with the healthy individuals treated with Para alone. A similar pattern was recorded in hepatic patients after addition of caffeine to paracetamol, with even augmented significant increase in K a and t 1/2 (by 100 and 32 %, respectively). CONCLUSIONS Liver dysfunction modified the PK of paracetamol expressed as earlier effective paracetamol concentration, with obvious decrease in its clearance. Caffeine induced faster absorption (evidenced by shorter T max and higher K a) and prolonged t 1/2 of paracetamol, the effects that were more profound in hepatic patients. Further studies are needed to evaluate the influence of liver damage on paracetamol pharmacokinetics whenever repeated dosing is applied, to avoid possible drug accumulation.
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Affiliation(s)
- Naglaa M El-Lakkany
- Department of Pharmacology, Theodor Bilharz Research Institute, Warak El-Hadar, Imbaba, P.O. Box 30, Giza, 12411, Egypt.
| | - Ahmed S Hendawy
- Department of Pharmacology, Theodor Bilharz Research Institute, Warak El-Hadar, Imbaba, P.O. Box 30, Giza, 12411, Egypt
| | - Sayed H Seif El-Din
- Department of Pharmacology, Theodor Bilharz Research Institute, Warak El-Hadar, Imbaba, P.O. Box 30, Giza, 12411, Egypt
| | - Ahmed A Ashour
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Nasr city, Cairo, Egypt
| | - Raafat Atta
- Department of Hepatogastroenterology, Theodor Bilharz Research Institute, Warak El-Hadar, Imbaba, P.O. Box 30, Giza, 12411, Egypt
| | - Abdel-Aziz H Abdel-Aziz
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Nasr city, Cairo, Egypt
| | - Ahmed M Mansour
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Nasr city, Cairo, Egypt
| | - Sanaa S Botros
- Department of Pharmacology, Theodor Bilharz Research Institute, Warak El-Hadar, Imbaba, P.O. Box 30, Giza, 12411, Egypt
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Abstract
This study aimed to evaluate the effect of organic/conventional coffee in liver tissues in the cancer process, taking into account the level and activities of catalase. The experiments were carried out with 8 groups of rats during 12 weeks. They received two injections of ethylenediaminetetraacetic acid solution 1.5% (v/v) prepared in 0.9% NaCl or 1,2-dimethylhydrazine (DMH) subcutaneous dose of 40 mg·kg−1·bw−1for 2 weeks. The organic/conventional coffee infusions were at 5, 10, and 20% and were incorporated to feed (100 mL of infusion·kg−1of diet). The catalase activity showed a decrease for livers which received DMH and DMH plus organic coffee at 5% and 10%. However, an increase was observed for those receiving organic 20% and conventional 10% coffee, slowing down and favoring the reversibility of the carcinogenic process. By SDS-PAGE, we observed an intensity decrease of 59 kDa bands, as the percentage of coffee was increased. The iron concentration (by ET-AAS) confirmed the electrophoretic results, suggesting that the DMH influenced the catalase expression conditions, reducing the activity by the loss of iron ions. Thus, the coffee may restore the catalase system in the liver, exerting its chemopreventive effects.
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30
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Graeter T, Niedermayer PC, Mason RA, Oeztuerk S, Haenle MM, Koenig W, Boehm BO, Kratzer W. Coffee consumption and NAFLD: a community based study on 1223 subjects. BMC Res Notes 2015; 8:640. [PMID: 26530296 PMCID: PMC4632464 DOI: 10.1186/s13104-015-1645-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 10/28/2015] [Indexed: 12/12/2022] Open
Abstract
Background
Objective of the present cross-sectional study was to investigate the impact of caffeine consumption on fatty liver and serum alanine aminotransferase (ALT) concentrations in a random population sample. Methods
All subjects (n = 1452; 789 women, 663 men; average age 42.3 ± 12.8 years) underwent ultrasonographic examination of the liver and completed a standardized questionnaire regarding personal and lifestyle data, in particular relating to coffee consumption and past medical history. In addition, anthropometric data were documented and laboratory examinations performed. Statistical interpretation of the data was performed descriptively and by means of bivariate and multivariate analysis. Results
Data of the present study demonstrated a significant association between hepatic steatosis male gender (p < 0.0001), advanced age (p < 0.0001) and elevated body-mass index (BMI; p < 0.0001). No association between caffeine consumption and fatty liver was identified. An association between caffeine consumption and elevated serum ALT concentrations was not identified. Conclusions The findings of the present study provide no evidence for an association between caffeine consumption and either the prevalence of hepatic steatosis or serum ALT concentrations.
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Affiliation(s)
- Tilmann Graeter
- Department of Diagnostic and Interventional Radiology, University Hospital Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany.
| | - Pia C Niedermayer
- Department of Internal Medicine I, University Hospital Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany.
| | - Richard A Mason
- Louis Stokes Clevel and Department of Veterans Affairs Medical Center, 10700 East Boulevard, Cleveland, OH, 44106, USA.
| | - Suemeyra Oeztuerk
- Department of Internal Medicine I, University Hospital Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany.
| | - Mark M Haenle
- Department of Internal Medicine I, University Hospital Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany.
| | - Wolfgang Koenig
- Department of Internal Medicine II, University Hospital Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany.
| | - Bernhard Otto Boehm
- Department of Internal Medicine I, University Hospital Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany. .,LKC School of Medicine, Nanyang Technological University, Singapore, Singapore. .,Imperial College London, London, UK.
| | - Wolfgang Kratzer
- Department of Internal Medicine I, University Hospital Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany.
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Petrick JL, Freedman ND, Graubard BI, Sahasrabuddhe VV, Lai GY, Alavanja MC, Beane-Freeman LE, Boggs DA, Buring JE, Chan AT, Chong DQ, Fuchs CS, Gapstur SM, Gaziano JM, Giovannucci EL, Hollenbeck AR, King LY, Koshiol J, Lee IM, Linet MS, Palmer JR, Poynter JN, Purdue MP, Robien K, Schairer C, Sesso HD, Sigurdson AJ, Zeleniuch-Jacquotte A, Wactawski-Wende J, Campbell PT, McGlynn KA. Coffee Consumption and Risk of Hepatocellular Carcinoma and Intrahepatic Cholangiocarcinoma by Sex: The Liver Cancer Pooling Project. Cancer Epidemiol Biomarkers Prev 2015; 24:1398-406. [PMID: 26126626 PMCID: PMC4576990 DOI: 10.1158/1055-9965.epi-15-0137] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Accepted: 06/16/2015] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Coffee consumption has been reported to be inversely associated with hepatocellular carcinoma (HCC), the most common type of liver cancer. Caffeine has chemopreventive properties, but whether caffeine is responsible for the coffee-HCC association is not well studied. In addition, few studies have examined the relationship by sex, and no studies have examined whether there is an association between coffee and intrahepatic cholangiocarcinoma (ICC), the second most common type of liver cancer. METHODS In the Liver Cancer Pooling Project, a consortium of U.S.-based cohort studies, data from 1,212,893 individuals (HCC, n = 860; ICC, n = 260) in nine cohorts were pooled. Multivariable-adjusted hazard ratios (HR) and 95% confidence intervals (CI) were estimated using proportional hazards regression. RESULTS Higher coffee consumption was associated with lower risk of HCC (HR>3 cups/day vs. non-drinker, 0.73; 95% CI, 0.53-0.99; Ptrend cups/day = <0.0001). More notable reduced risk was seen among women than men (Pinteraction = 0.07). Women who consumed more than three cups of coffee per day were at a 54% lower risk of HCC (HR, 0.46; 95% CI, 0.26-0.81), whereas men had more modest reduced risk of HCC (HR, 0.93; 95% CI, 0.63-1.37). The associations were stronger for caffeinated coffee (HR>3 cups/day vs. non-drinker, 0.71; 95% CI, 0.50-1.01) than decaffeinated coffee (HR, 0.92; 95% CI, 0.55-1.54). There was no association between coffee consumption and ICC. CONCLUSIONS These findings suggest that, in a U.S. population, coffee consumption is associated with reduced risk of HCC. IMPACT Further research into specific coffee compounds and mechanisms that may account for these associations is needed.
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Affiliation(s)
- Jessica L Petrick
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland.
| | - Neal D Freedman
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland
| | - Barry I Graubard
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland
| | | | - Gabriel Y Lai
- Division of Cancer Control and Population Sciences, National Cancer Institute, Bethesda, Maryland
| | - Michael C Alavanja
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland
| | - Laura E Beane-Freeman
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland
| | - Deborah A Boggs
- Slone Epidemiology Center at Boston University, Boston, Massachusetts
| | - Julie E Buring
- Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts. Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts
| | - Andrew T Chan
- Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts. Channing Division of Network Medicine, Brigham and Women's Hospital, Boston, Massachusetts. Division of Gastroenterology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Dawn Q Chong
- Division of Gastroenterology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Charles S Fuchs
- Department of Medicine, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
| | - Susan M Gapstur
- Epidemiology Research Program, American Cancer Society, Atlanta, Georgia
| | | | - Edward L Giovannucci
- Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts
| | | | - Lindsay Y King
- Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts. Channing Division of Network Medicine, Brigham and Women's Hospital, Boston, Massachusetts. Division of Gastroenterology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Jill Koshiol
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland
| | - I-Min Lee
- Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts. Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts
| | - Martha S Linet
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland
| | - Julie R Palmer
- Slone Epidemiology Center at Boston University, Boston, Massachusetts
| | - Jenny N Poynter
- Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota
| | - Mark P Purdue
- Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | - Kim Robien
- Exercise and Nutrition Sciences, Milken Institute School of Public Health, George Washington University, Washington, DC
| | - Catherine Schairer
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland
| | - Howard D Sesso
- Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts. Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts
| | - Alice J Sigurdson
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland
| | | | - Jean Wactawski-Wende
- Department of Epidemiology and Environmental Health, University at Buffalo, Buffalo, New York
| | - Peter T Campbell
- Epidemiology Research Program, American Cancer Society, Atlanta, Georgia
| | - Katherine A McGlynn
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland
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Casas-Grajales S, Muriel P. Antioxidants in liver health. World J Gastrointest Pharmacol Ther 2015; 6:59-72. [PMID: 26261734 PMCID: PMC4526841 DOI: 10.4292/wjgpt.v6.i3.59] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 06/04/2015] [Accepted: 06/18/2015] [Indexed: 02/06/2023] Open
Abstract
Liver diseases are a worldwide medical problem because the liver is the principal detoxifying organ and maintains metabolic homeostasis. The liver metabolizes various compounds that produce free radicals (FR). However, antioxidants scavenge FR and maintain the oxidative/antioxidative balance in the liver. When the liver oxidative/antioxidative balance is disrupted, the state is termed oxidative stress. Oxidative stress leads to deleterious processes in the liver and produces liver diseases. Therefore, restoring antioxidants is essential to maintain homeostasis. One method of restoring antioxidants is to consume natural compounds with antioxidant capacity. The objective of this review is to provide information pertaining to various antioxidants found in food that have demonstrated utility in improving liver diseases.
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Abstract
Background Coffee consumption has been associated with reduced risk of developing type 2 diabetes mellitus (T2DM) however, the mechanism for this association has yet to be elucidated. Non-alcoholic fatty liver disease (NAFLD) characterizes and predicts T2DM yet the relationship of coffee with this disorder remains unclear. Our aim was to investigate the associations of coffee with markers of liver injury in 1005 multi-ethnic, non-diabetic adults in the Insulin Resistance Atherosclerosis Study. Methods Dietary intake was assessed using a validated 114-item food frequency questionnaire. Alanine aminotransferase (ALT), aspartate aminotransferase (AST) and fetuin-A were determined in fasting blood samples and the validated NAFLD liver fat score was calculated. Multivariate linear regression assessed the contribution of coffee to variation in markers of liver injury. Results Caffeinated coffee showed significant inverse associations with ALT (β = −0.08, p = 0.0111), AST (β = −0.05, p = 0.0155) and NAFLD liver fat score (β = −0.05, p = 0.0293) but not with fetuin-A (β = 0.04, p = 0.17). When the highest alcohol consumers were excluded, these associations remained (ALT β = −0.11, p = 0.0037; AST β = −0.05, p = 0.0330; NAFLD liver fat score β = −0.06, p = 0.0298). With additional adjustment for insulin sensitivity, the relationship with ALT remained significant (ALT β = −0.08, p = 0.0400; AST β = −0.03, p = 0.20; NAFLD liver fat score β = −0.03, p = 0.27). There were no significant associations of decaffeinated coffee with liver markers. Conclusions These analyses indicate a beneficial impact of caffeinated coffee on liver morphology and/or function, and suggest that this relationship may mediate the well-established inverse association of coffee with risk of T2DM. Electronic supplementary material The online version of this article (doi:10.1186/s12876-015-0321-3) contains supplementary material, which is available to authorized users.
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Nicotinic acid prevents experimental liver fibrosis by attenuating the prooxidant process. Int Immunopharmacol 2015; 28:244-51. [PMID: 26093271 DOI: 10.1016/j.intimp.2015.05.045] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Revised: 05/12/2015] [Accepted: 05/27/2015] [Indexed: 12/11/2022]
Abstract
UNLABELLED Liver fibrosis is the excessive accumulation of extracellular matrix proteins that occurs in most chronic liver diseases. Nicotinamide treatment has been shown to prevent collagen accumulation and fibrogenesis in a bleomycin model of lung fibrosis. In this study, we evaluated the effects of nicotinic acid (NA) on experimental liver fibrosis and investigated its underlying mechanism. METHODS Fibrosis was induced by chronic TAA administration and the effects of co-administration with NA for 8 weeks were evaluated, including control groups. RESULTS TAA administration induced liver fibrosis, which was prevented by nicotinic acid. NA prevented the elevation of liver enzymes and prevented hepatic glycogen depletion. Liver histopathology and hydroxyproline levels were significantly lower in the rats treated with TAA plus NA compared with TAA only. NA demonstrated antioxidant properties by restoring the redox equilibrium (lipid peroxidation and GPx levels). Western blot assays showed decreased expression levels of TGF-β and its downstream inductor CTGF. Additionally, NA prevented hepatic stellate cell activation due by blocking the expression of α-SMA. Zymography assays showed that NA decreased the activity of matrix metalloproteinases 2 and 9. CONCLUSIONS NA prevents experimental fibrosis; the mechanisms of action are associated with its antioxidant properties and the reduction in TGF-β expression. The decrease in TGF-β levels may be associated with the attenuation of the oxidative processes, thus resulting in a reduction in HSC activation and ECM deposition. The findings suggest a possible role for NA as an antifibrotic agent for liver injury.
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McGlynn KA, Petrick JL, London WT. Global epidemiology of hepatocellular carcinoma: an emphasis on demographic and regional variability. Clin Liver Dis 2015; 19:223-38. [PMID: 25921660 PMCID: PMC4712629 DOI: 10.1016/j.cld.2015.01.001] [Citation(s) in RCA: 596] [Impact Index Per Article: 66.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Liver cancer is the second leading cause of global cancer mortality. The major risk factors for hepatocellular carcinoma (HCC) are being addressed with success by prevention efforts. Vaccination against hepatitis B virus has reduced incidence of HCC in Taiwan and is partly responsible for lower rates in China. New infections with hepatitis C virus are low in developed countries because of prevention of posttransfusion infections and reduced exposure to HCV by drug users. Aflatoxin exposure has been reduced by better grain storage and dietary changes. Obesity, metabolic syndrome, and diabetes are increasing in developed and developing countries and will lead to more cases of HCC.
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Affiliation(s)
- Katherine A. McGlynn
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD 20854
| | - Jessica L. Petrick
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD 20854
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Park KR, Suh SY, Seo AR, Ahn H, Hwang S, Roh JJ, Kim YI, Oh S, Sung NJ. The Relationship between Coffee Drinking and Liver Function Tests in Korean Men. JOURNAL OF CAFFEINE RESEARCH 2014. [DOI: 10.1089/jcr.2014.0013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Kwang Rae Park
- Department of Family Medicine, Dongguk University Ilsan Hospital, Goyang, Korea
| | - Sang-Yeon Suh
- Department of Family Medicine, Dongguk University Ilsan Hospital, Goyang, Korea
- Department of Medicine, Dongguk University School of Medicine, Seoul, Korea
| | - Ah-Ram Seo
- Department of Statistics, Dongguk University, Seoul, Korea
| | - Hongyup Ahn
- Department of Statistics, Dongguk University, Seoul, Korea
| | - Sunwook Hwang
- Department of Family Medicine, St. Paul's Hospital, College of Medicine, Catholic University of Korea, Seoul, Korea
| | - Juliet Juhye Roh
- Department of Medicine, Dongguk University School of Medicine, Seoul, Korea
| | - Yu Il Kim
- Department of Family Medicine, Dongguk University Ilsan Hospital, Goyang, Korea
- Department of Medicine, Dongguk University School of Medicine, Seoul, Korea
| | - Sangwoo Oh
- Department of Family Medicine, Dongguk University Ilsan Hospital, Goyang, Korea
- Department of Medicine, Dongguk University School of Medicine, Seoul, Korea
| | - Nak-Jin Sung
- Department of Family Medicine, Dongguk University Ilsan Hospital, Goyang, Korea
- Department of Medicine, Dongguk University School of Medicine, Seoul, Korea
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Abstract
Coffee is one of the most widely used beverages in the world. It includes a wide array of components that can have potential implications for health. Several epidemiological studies associate coffee consumption with a reduced incidence of various chronic diseases such as diabetes, cardiovascular diseases, and neurodegenerative diseases. Over the past 20 years, an increasing number of epidemiological and experimental studies have demonstrated the positive effects of coffee on chronic liver diseases. Coffee consumption has been inversely associated with the activity of liver enzymes in subjects at risk, including heavy drinkers. Coffee favours an improvement in hepatic steatosis and fibrosis, and a reduction in cirrhosis and the risk of hepatocellular carcinoma. The mechanisms of action through which it exerts its beneficial effects are not fully understood. Experimental studies show that coffee consumption reduces fat accumulation and collagen deposition in the liver and promotes antioxidant capacity through an increase in glutathione as well as modulation of the gene and protein expression of several inflammatory mediators. Animal and in vitro studies indicate that cafestol and kahweol, 2 diterpens, can operate by modulating multiple enzymes involved in the detoxification process of carcinogens causing hepatocellular carcinoma. It is unclear whether the benefits are significant enough to "treat" patients with chronic liver disease. While we await clarification, moderate daily unsweetened coffee use is a reasonable adjuvant to therapy for these patients.
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de Oliveira PMA, de Almeida RH, de Oliveira NA, Bostyn S, Gonçalves CB, de Oliveira AL. Enrichment of diterpenes in green coffee oil using supercritical fluid extraction – Characterization and comparison with green coffee oil from pressing. J Supercrit Fluids 2014. [DOI: 10.1016/j.supflu.2014.08.016] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Goh GBB, Chow WC, Renwei-Wang, Yuan JM, Koh WP. Coffee, alcohol and other beverages in relation to cirrhosis mortality: the Singapore Chinese Health Study. Hepatology 2014; 60:661-9. [PMID: 24753005 PMCID: PMC4110174 DOI: 10.1002/hep.27054] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Accepted: 02/03/2014] [Indexed: 12/15/2022]
Abstract
UNLABELLED Limited experimental and epidemiologic data suggest that coffee may reduce hepatic damage in chronic liver disease. The association between consumption of coffee and other beverages and risk of cirrhosis mortality was evaluated in the Singapore Chinese Health Study. This is a prospective population-based cohort of 63,275 middle-aged and older Chinese subjects who provided data on diet, lifestyle, and medical histories through in-person interviews using a structured questionnaire at enrollment between 1993 and 1998. Mortality from cirrhosis in the cohort was ascertained through linkage analysis with nationwide death registry. After a mean follow-up of 14.7 years, 114 subjects died from cirrhosis; 33 of them from viral hepatitis B (29%), two from hepatitis C (2%), and 14 from alcohol-related cirrhosis (12%). Compared to nondrinkers, daily alcohol drinkers had a strong dose-dependent positive association between amount of alcohol and risk of cirrhosis mortality. Conversely, there was a strong dose-dependent inverse association between coffee intake and risk of nonviral hepatitis-related cirrhosis mortality (P for trend = 0.014). Compared to non-daily coffee drinkers, those who drank two or more cups per day had a 66% reduction in mortality risk (hazard ratio [HR] = 0.34, 95% confidence interval [CI] = 0.14-0.81). However, coffee intake was not associated with hepatitis B-related cirrhosis mortality. The inverse relationship between caffeine intake and nonviral hepatitis-related cirrhosis mortality became null after adjustment for coffee drinking. The consumption of black tea, green tea, fruit juices, or soft drinks was not associated with risk of cirrhosis death. CONCLUSION This study demonstrates the protective effect of coffee on nonviral hepatitis-related cirrhosis mortality, and provides further impetus to evaluate coffee as a potential therapeutic agent in patients with cirrhosis.
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Affiliation(s)
- George Boon-Bee Goh
- Department of Gastroenterology & Hepatology, Singapore General Hospital, Singapore
| | - Wan-Cheng Chow
- Department of Gastroenterology & Hepatology, Singapore General Hospital, Singapore
- Duke-NUS Graduate Medical School Singapore, Singapore
| | - Renwei-Wang
- Division of Cancer Control and Population Sciences, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania, USA
| | - Jian-Min Yuan
- Division of Cancer Control and Population Sciences, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania, USA
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Woon-Puay Koh
- Duke-NUS Graduate Medical School Singapore, Singapore
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore
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Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is one of the most common and deadly malignancies worldwide. The multikinase inhibitor sorafenib still remains the only approved agent for advanced HCC. In most cases, HCC develops based on advanced liver cirrhosis, whereas the underlying risk factors can be identified in the vast majority of patients. METHODS Here, we summarise and review the pathomechanisms in dependence of the underlying disease, gene signatures and frequent mutations in HCC. RESULTS Worldwide, HCC is most commonly caused by viral hepatitis B and C. It is less frequently associated with chronic exposure to toxins or hereditary liver diseases. Non-alcoholic fatty liver disease is an emerging risk factor with increasing prevalence nowadays. Emerging innovative technologies including whole-genome or -exome analyses have been applied for molecular and prognostic classifications as well as therapeutic implications. Mutations leading to activation of the Wnt pathway and inactivation of p53 were most frequently identified in HCC. CONCLUSIONS Recent advances have significantly improved our understanding of the molecular pathogenesis of HCC and its complex genetic landscape. The emerging data will open the door towards novel and more effective targeted and personalized therapies in this devastating disease.
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Affiliation(s)
- Martha M Kirstein
- Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany
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Abstract
BACKGROUND There is a growing body of evidence that caffeine exerts beneficial effects on the liver; however, the molecular mechanisms by which caffeine exerts beneficial effects on the liver are poorly defined. AIMS The aim of the present study was to examine the efficacy of caffeine in preventing thioacetamide (TAA)-induced cirrhosis in rats. MATERIALS AND METHODS Cirrhosis was induced by chronic TAA administration and the effects of coadministration of caffeine for 8 weeks were evaluated, including control groups. RESULTS The administration of TAA induced liver cirrhosis, which was inhibited by caffeine. Caffeine prevents elevation of liver enzymes. Liver histopathology and hydroxyproline levels were significantly lower in the rats treated with TAA plus caffeine compared with TAA only. Caffeine shows antioxidant properties by restoring the redox equilibrium [lipid peroxidation and glutathione peroxidase (GPx) levels]. Western blot assays showed blockade of the expression of transforming growth factor-β and its downstream inductor connective tissue growth factor. Similarly, caffeine decreases messenger RNA levels of these profibrogenic proteins. In addition, caffeine inhibits hepatic stellate cells because of blockade of the expression of α-smooth muscle actin; in the western blot assay, we also found low levels of mRNA of collagen α1. Zymography assays showed that caffeine had an effect on the activity of matrix metalloproteinases 2 and 9, but no effect on the expression of tissue inhibitor of metalloproteinases-1, using RT-PCR. CONCLUSION Our results show that caffeine prevents experimental cirrhosis; the mechanisms of action are associated with its antioxidant properties and mainly by its ability to block the elevation of the profibrogenic cytokine transforming growth factor-β, which may be associated with attenuation of the inflammatory and fibrotic processes.
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Vicente SJV, Ishimoto EY, Torres EAFS. Coffee modulates transcription factor Nrf2 and highly increases the activity of antioxidant enzymes in rats. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:116-122. [PMID: 24328189 DOI: 10.1021/jf401777m] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
This study investigated the effect of a 28 day administration of coffee brew on the activity of antioxidant enzymes in rats. After this period of 2.0 mL/day dosages of this beverage, the activities of hepatic superoxide dismutase, catalase, and glutathione peroxidase increased 74.8, 59.4, and 135.2%, respectively, whereas the cytosolic level of Nrf2 increased 131.3%. At the same time, the total antioxidant capacity of the hepatic tissue increased 25.1%, improving the defensive status against oxidative stress. At the end of the experiment, the levels of biomarkers alanine transaminase and aspartate transaminase remained equal to the control group, and no changes were observed in the hepatic histoarchiteture of the animals, suggesting that the liver tissue was not impaired by the exposure to coffee. The changes in enzyme activities and antioxidant capacity were statistically significant (p < 0.05), indicating that coffee could be considered an important alternative against oxidative stress and its correlated degenerative diseases.
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Affiliation(s)
- Silvio J V Vicente
- Department of Ecotoxicology, Santa Cecília University , Santos, SP, Brazil
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Gordillo-Bastidas D, Oceguera-Contreras E, Salazar-Montes A, González-Cuevas J, Hernández-Ortega LD, Armendáriz-Borunda J. Nrf2 and Snail-1 in the prevention of experimental liver fibrosis by caffeine. World J Gastroenterol 2013; 19:9020-9033. [PMID: 24379627 PMCID: PMC3870555 DOI: 10.3748/wjg.v19.i47.9020] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Revised: 06/19/2013] [Accepted: 08/06/2013] [Indexed: 02/06/2023] Open
Abstract
AIM: To determine the molecular mechanisms involved in experimental hepatic fibrosis prevention by caffeine (CFA).
METHODS: Liver fibrosis was induced in Wistar rats by intraperitoneal thioacetamide or bile duct ligation and they were concomitantly treated with CFA (15 mg/kg per day). Fibrosis and inflammatory cell infiltrate were evaluated and classified by Knodell index. Inflammatory infiltrate was quantified by immunohistochemistry (anti-CD11b). Gene expression was analyzed by quantitative reverse transcription-polymerase chain reaction for collagen I (Col-1), connective tissue growth factor (CTGF), transforming growth factor β1 (TGF-β1), tumor necrosis factor alpha (TNF-α), interleukin-1 (IL-1), IL-6, superoxide dismutase (SOD) and catalase (CAT). Activation of Nrf2 and Snail-1 was analyzed by Western-blot. TNF-α expression was proved by enzyme-linked immunosorbant assay, CAT activity was performed by zymography.
RESULTS: CFA treatment diminished fibrosis index in treated animals. The Knodell index showed both lower fibrosis and necroinflammation. Expression of profibrogenic genes CTGF, Col-1 and TGF-β1 and proinflammatory genes TNF-α, IL-6 and IL-1 was substantially diminished with CFA treatment with less CD11b positive areas. Significantly lower values of transcriptional factor Snail-1 were detected in CFA treated rats compared with cirrhotic rats without treatment; in contrast Nrf2 was increased in the presence of CFA. Expression of SOD and CAT was greater in animals treated with CFA showing a strong correlation between mRNA expression and enzyme activity.
CONCLUSION: Our results suggest that CFA inhibits the transcriptional factor Snail-1, down-regulating profibrogenic genes, and activates Nrf2 inducing antioxidant enzymes system, preventing inflammation and fibrosis.
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Dias RCE, Alves ST, Benassi MDT. Spectrophotometric method for quantification of kahweol in coffee. J Food Compost Anal 2013. [DOI: 10.1016/j.jfca.2013.04.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Lai GY, Weinstein SJ, Albanes D, Taylor PR, McGlynn KA, Virtamo J, Sinha R, Freedman ND. The association of coffee intake with liver cancer incidence and chronic liver disease mortality in male smokers. Br J Cancer 2013; 109:1344-51. [PMID: 23880821 PMCID: PMC3778279 DOI: 10.1038/bjc.2013.405] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2013] [Revised: 06/24/2013] [Accepted: 06/26/2013] [Indexed: 12/11/2022] Open
Abstract
Background: Coffee intake is associated with reduced risk of liver cancer and chronic liver disease as reported in previous studies, including prospective ones conducted in Asian populations where hepatitis B viruses (HBVs) and hepatitis C viruses (HCVs) are the dominant risk factors. Yet, prospective studies in Western populations with lower HBV and HCV prevalence are sparse. Also, although preparation methods affect coffee constituents, it is unknown whether different methods affect disease associations. Methods: We evaluated the association of coffee intake with incident liver cancer and chronic liver disease mortality in 27 037 Finnish male smokers, aged 50–69, in the Alpha-Tocopherol, Beta-Carotene Cancer Prevention Study, who recorded their coffee consumption and were followed up to 24 years for incident liver cancer or chronic liver disease mortality. Multivariate relative risks (RRs) and 95% confidence intervals (CIs) were estimated by Cox proportional hazard models. Results: Coffee intake was inversely associated with incident liver cancer (RR per cup per day=0.82, 95% CI: 0.73–0.93; P-trend across categories=0.0007) and mortality from chronic liver disease (RR=0.55, 95% CI: 0.48–0.63; P-trend<0.0001). Inverse associations persisted in those without diabetes, HBV- and HCV-negative cases, and in analyses stratified by age, body mass index, alcohol and smoking dose. We observed similar associations for those drinking boiled or filtered coffee. Conclusion: These findings suggest that drinking coffee may have benefits for the liver, irrespective of whether coffee was boiled or filtered.
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Affiliation(s)
- G Y Lai
- Cancer Prevention Fellowship Program, Division of Cancer Prevention, National Cancer Institute, 9609 Medical Center Drive, Room 2W136 MSC 9712, Bethesda, MD 20892, USA.
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Cardin R, Piciocchi M, Martines D, Scribano L, Petracco M, Farinati F. Effects of coffee consumption in chronic hepatitis C: a randomized controlled trial. Dig Liver Dis 2013; 45:499-504. [PMID: 23238034 DOI: 10.1016/j.dld.2012.10.021] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2012] [Revised: 10/24/2012] [Accepted: 10/30/2012] [Indexed: 12/11/2022]
Abstract
BACKGROUND Coffee is associated with a reduced risk of hepatocellular carcinoma in patients with chronic C hepatitis. This prospective trial was aimed at assessing the mechanisms underlying coffee-related protective effects. METHODS Forty patients with chronic hepatitis C were randomized into two groups: the first consumed 4 cups of coffee/day for 30 days, while the second remained coffee "abstinent". At day 30, the groups were switched over for a second month. RESULTS At baseline, aspartate aminotransferase and alanine aminotransferase were lower in patients drinking 3-5 (Group B) than 0-2 cups/day (Group A) (56 ± 6 vs 74 ± 11/60 ± 3 vs 73 ± 7 U/L p=0.05/p=0.04, respectively). HCV-RNA levels were significantly higher in Group B [(6.2 ± 1.5) × 10(5)vs (3.9 ± 1.0) × 10(5)UI/mL, p=0.05]. During coffee intake, 8-hydroxydeoxyguanosine and collagen levels were significantly lower than during abstinence (15 ± 3 vs 44 ± 16 8-hydroxydeoxyguanosine/10(5)deoxyguanosine, p=0.05 and 56 ± 9 vs 86 ± 21 ng/mL, p=0.04). Telomere length was significantly higher in patients during coffee intake (0.68 ± 0.06 vs 0.48 ± 0.04 Arbitrary Units, p=0.006). Telomere length and 8-hydroxydeoxyguanosine were inversely correlated. CONCLUSION In chronic hepatitis C coffee consumption induces a reduction in oxidative damage, correlated with increased telomere length and apoptosis, with lower collagen synthesis, factors that probably mediate the protection exerted by coffee with respect to disease progression.
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Affiliation(s)
- Romilda Cardin
- Department of Surgical, Oncological and Gastroenterological Sciences, Section of Gastroenterology, Padua University, Padua, Italy
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Diterpenes in green and roasted coffee of Coffea arabica cultivars growing in the same edapho-climatic conditions. J Food Compost Anal 2013. [DOI: 10.1016/j.jfca.2013.01.007] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Lima AR, Pereira RG, Abrahão SA, Zangeronimo MG, Paula FB, Duarte SM. Effect of decaffeination of green and roasted coffees on the in vivoantioxidant activity and prevention of liver injury in rats. REVISTA BRASILEIRA DE FARMACOGNOSIA 2013. [DOI: 10.1590/s0102-695x2013005000036] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Pacetti D, Boselli E, Balzano M, Frega NG. Authentication of Italian Espresso coffee blends through the GC peak ratio between kahweol and 16-O-methylcafestol. Food Chem 2012; 135:1569-74. [DOI: 10.1016/j.foodchem.2012.06.007] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2011] [Revised: 03/02/2012] [Accepted: 06/06/2012] [Indexed: 12/21/2022]
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