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Optimization and validation of analytical RP-HPLC methods for the quantification of glucosinolates and isothiocyanates in Nasturtium officinale R. Br and Brassica oleracea. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Schulze H, Hornbacher J, Wasserfurth P, Reichel T, Günther T, Krings U, Krüger K, Hahn A, Papenbrock J, Schuchardt JP. Immunomodulating Effect of the Consumption of Watercress (Nasturtium officinale) on Exercise-Induced Inflammation in Humans. Foods 2021; 10:foods10081774. [PMID: 34441551 PMCID: PMC8391159 DOI: 10.3390/foods10081774] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 07/16/2021] [Accepted: 07/28/2021] [Indexed: 12/21/2022] Open
Abstract
The vegetable watercress (Nasturtium officinale R.Br.) is, besides being a generally nutritious food, a rich source of glucosinolates. Gluconasturtiin, the predominant glucosinolate in watercress, has been shown to have several health beneficial properties through its bioactive breakdown product phenethyl isothiocyanate. Little is known about the immunoregulatory effects of watercress. Moreover, anti-inflammatory effects have mostly been shown in in vitro or in animal models. Hence, we conducted a proof-of-concept study to investigate the effects of watercress on the human immune system. In a cross-over intervention study, 19 healthy subjects (26.5 ± 4.3 years; 14 males, 5 females) were given a single dose (85 g) of fresh self-grown watercress or a control meal. Two hours later, a 30 min high-intensity workout was conducted to promote exercise-induced inflammation. Blood samples were drawn before, 5 min after, and 3 h after the exercise unit. Inflammatory blood markers (IL-1β, IL-6, IL-10, TNF-α, MCP-1, MMP-9) were analyzed in whole blood cultures after ex vivo immune cell stimulation via lipopolysaccharides. A mild pro-inflammatory reaction was observed after watercress consumption indicated by an increase in IL-1β, IL-6, and TNF-α, whereas the immune response was more pronounced for both pro-inflammatory and anti-inflammatory markers (IL-1β, IL-6, IL-10, TNF-α) after the exercise unit compared to the control meal. During the recovery phase, watercress consumption led to a stronger anti-inflammatory downregulation of the pro-inflammatory cytokines IL-6 and TNF-α. In conclusion, we propose that watercress causes a stronger pro-inflammatory response and anti-inflammatory counter-regulation during and after exercise. The clinical relevance of these changes should be verified in future studies.
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Affiliation(s)
- Hendrik Schulze
- Institute of Food Science and Human Nutrition, Leibniz University Hannover, D-30167 Hannover, Germany; (H.S.); (P.W.); (A.H.)
| | - Johann Hornbacher
- Institute of Botany, Leibniz University Hannover, D-30419 Hannover, Germany; (J.H.); (J.P.)
| | - Paulina Wasserfurth
- Institute of Food Science and Human Nutrition, Leibniz University Hannover, D-30167 Hannover, Germany; (H.S.); (P.W.); (A.H.)
| | - Thomas Reichel
- Department of Exercise Physiology and Sports Therapy, Institute of Sport Science, Justus Liebig University Giessen, D-35394 Giessen, Germany; (T.R.); (K.K.)
| | - Thorben Günther
- Institute of Food Chemistry, Leibniz University Hannover, D-30167 Hannover, Germany; (T.G.); (U.K.)
| | - Ulrich Krings
- Institute of Food Chemistry, Leibniz University Hannover, D-30167 Hannover, Germany; (T.G.); (U.K.)
| | - Karsten Krüger
- Department of Exercise Physiology and Sports Therapy, Institute of Sport Science, Justus Liebig University Giessen, D-35394 Giessen, Germany; (T.R.); (K.K.)
| | - Andreas Hahn
- Institute of Food Science and Human Nutrition, Leibniz University Hannover, D-30167 Hannover, Germany; (H.S.); (P.W.); (A.H.)
| | - Jutta Papenbrock
- Institute of Botany, Leibniz University Hannover, D-30419 Hannover, Germany; (J.H.); (J.P.)
| | - Jan P. Schuchardt
- Institute of Food Science and Human Nutrition, Leibniz University Hannover, D-30167 Hannover, Germany; (H.S.); (P.W.); (A.H.)
- Correspondence: ; Tel.: +49-511-7622987
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The Effect of the Hydroalcoholic Extract of Watercress on the Levels of Protein Carbonyl, Inflammatory Markers, and Vitamin E in Chronic Hemodialysis Patients. Biochem Res Int 2021; 2021:5588464. [PMID: 34136285 PMCID: PMC8175173 DOI: 10.1155/2021/5588464] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 05/20/2021] [Indexed: 11/17/2022] Open
Abstract
Introduction Chronic kidney disorder is a main public health concern. Inflammatory processes and oxidative stress are common in end-stage renal disease patients. We aimed to evaluate the effect of the hydroalcoholic extract of watercress (WC) on the inflammatory cytokines and protein carbonyl (PCO) contents in chronic hemodialysis patients. Methods This was a double-blind randomized clinical trial performed on 46 hemodialysis patients. The participants were randomly divided into two groups: intervention group (500 mg hydroalcoholic extract of WC every day for 4 weeks) and control group (500 mg of white flour every night for 4 weeks). The blood samples were taken to determine the levels of vitamin E, PCO, and inflammatory cytokines at baseline and the end of treatment. Results Forty-five patients completed the study (22 patients in the intervention group and 23 patients in the control group). There was a significant reduction in the PCO level (20.33 ± 4.40 vs. 15.06 ± 6.41, P=0.001) in the intervention group; also, this change was statistically significant relative to the control group. Furthermore, there were significant reductions in hs-CRP (8953.30 ± 5588.06 vs. 7249.86 ± 5091.62, P=0.007) and IL-6 (60.10 (55.99, 73.10) vs. 55.21 (53.39, 60.48), P=0.050) in the intervention group, but these changes were not significant in comparison with the control group. Conclusion We conclude that the hydroalcoholic extract of WC reduced the PCO content in hemodialysis patients via inhibition of protein oxidation. Although WC administration had caused a significant reduction in IL-6 and CRP levels, these differences were not statistically significant relative to the control group. Further research is needed to identify the antioxidant and anti-inflammatory effects of WC in hemodialysis patients.
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A Narrative Review on Therapeutic Potentials of Watercress in Human Disorders. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:5516450. [PMID: 34055006 PMCID: PMC8123986 DOI: 10.1155/2021/5516450] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 04/30/2021] [Indexed: 12/11/2022]
Abstract
Watercress (WC) is an aquatic vegetable that belongs to the Brassicaceae family, and it often grows near water. In traditional medicine, WC is a known remedy for hypercholesterolemia, hyperglycemia, hypertension, arthritis, bronchitis, diuresis, odontalgia, and scurvy. It also acts as an antiestrogenic and can be used as a nutritional supplement. It has been reported that these therapeutic effects are due to primary metabolites such as isothiocyanates, glucosinolates, polyphenols (flavonoids, phenolic acids, and proanthocyanidins), vitamins (B1, B2, B3, B6, E, and C), terpenes (including carotenoids), and bioelements which exist in this plant. Many pharmacological studies confirm the antioxidant, antibacterial, anticancer, antipsoriatic, anti-inflammatory, cardioprotective, renoprotective, hepatoprotective, and antigenotoxicity effects of WC. The consumption of WC extract can be useful in reducing the complications of hypercholesterolemia and hyperglycemia. Furthermore, the extract of WC could markedly augment the antioxidant enzymes such as superoxide dismutase and catalase activity. Interestingly, consumption of food rich in polyphenols such as WC extract can help reduce oxidative stress, DNA damage, and cancer susceptibility. Several studies also showed that WC extract significantly reduced liver injury as a result of cholestatic hepatic injury, gamma radiation, arsenic, and acetaminophen-induced hepatotoxicity. In this review, the researchers focus on the phytochemical and biochemical characterizations of WC and its therapeutic effects in the treatment of human diseases.
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Wang T, Li B, Wang Z, Wang X, Xia Z, Ning G, Wang X, Zhang Y, Cui L, Yu M, Zhang L, Zhang Z, Yuan W, Guo X, Yuan X, Feng S, Chen X. Sorafenib promotes sensory conduction function recovery via miR-142-3p/AC9/cAMP axis post dorsal column injury. Neuropharmacology 2019; 148:347-357. [PMID: 30710569 DOI: 10.1016/j.neuropharm.2019.01.031] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2018] [Revised: 01/28/2019] [Accepted: 01/29/2019] [Indexed: 02/07/2023]
Abstract
Spinal cord injury results in sensation dysfunction. This study explored miR-142-3p, which acts a critical role in sciatic nerve conditioning injury (SNCI) promoting the repair of the dorsal column injury and validated its function on primary sensory neuron(DRG). miR-142-3p expression increased greatly in the spinal cord dorsal column lesion (SDCL) group and increased slightly in the SNCI group. Subsequently, the expression of adenylate cyclase 9 (AC9), the target gene of miR-142-3p, declined sharply in the SDCL group and declined limitedly in the SNCI group. The expression trend of cAMP was opposite to that of miR-142-3p. MiR-142-3p inhibitor improved the axon length, upregulated the expression of AC9, cAMP, p-CREB, IL-6, and GAP43, and downregulated the expression of GTP-RhoA. miR-142-3p inhibitor combined with AC9 siRNA showed shorter axon length, the expression of AC9, cAMP, p-CREB, IL-6, and GAP43 was decreased, and the expression of GTP-RhoA was increased. H89 and AG490, inhibitors of cAMP/PKA pathway and IL6/STAT3/GAP43 axis, respectively, declined the enhanced axonal growth by miR-142-3p inhibitor and altered the expression level of the corresponding proteins. Thus, a substitution therapy using Sorafenib that downregulates the miR-142-3p expression for SNCI was investigated. The results showed the effect of Sorafenib was similar to that of miR-142-3p inhibitor and SNCI on both axon growth in vitro and sensory conduction function recovery in vivo. In conclusion, miR-142-3p acts a pivotal role in SNCI promoting the repair of dorsal column injury. Sorafenib mimics the treatment effect of SNCI via downregulation of miR-142-3p, subsequently, promoting sensory conduction function recovery post dorsal column injury.
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Affiliation(s)
- Tianyi Wang
- Department of Orthopedics, The 981st Hospital of the Chinese People's Liberation Army, Chengde, 067000, Hebei Province, PR China
| | - Bo Li
- Department of Orthopedics, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, PR China
| | - Zhijie Wang
- Department of Pediatric Internal Medicine, Affiliated Hospital of Chengde Medical University, Chengde, 067000, Hebei Province, PR China
| | - Xin Wang
- Chengde Medical University, Chengde, 067000, Hebei Province, PR China
| | - Ziwei Xia
- Department of Orthopedics, The Second Hospital of Tianjin Medical University, Tianjin, 300211, PR China
| | - Guangzhi Ning
- Department of Orthopedics, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, PR China
| | - Xu Wang
- Department of Orthopedics, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, PR China
| | - Yanjun Zhang
- Department of Spine Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, 100000, PR China
| | - Libin Cui
- Department of Spine Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, 100000, PR China
| | - Mei Yu
- Leukemia Center, Chinese Academy of Medical Sciences & Peking Union of Medical College, Institute of Hematology & Hospital of Blood Diseases, Tianjin, 30020, PR China
| | - Liang Zhang
- Department of Orthopedics, The Second Hospital of Tianjin Medical University, Tianjin, 300211, PR China
| | - Zheng Zhang
- Department of Orthopedics, The 981st Hospital of the Chinese People's Liberation Army, Chengde, 067000, Hebei Province, PR China
| | - Wenqi Yuan
- Department of Spinal Surgery, General Hospital of Ningxia Medical University, Yinchuan, 750000, Ningxia, PR China
| | - Xiaoling Guo
- Department of Neurology, The 981st Hospital of the Chinese People's Liberation Army, Chengde, 067000, Hebei Province, PR China.
| | - Xin Yuan
- Department of Spine Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, 100000, PR China.
| | - Shiqing Feng
- Department of Orthopedics, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, PR China; International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, 154 Anshan Road, Heping District, Tianjin, 300052, PR China.
| | - Xueming Chen
- Department of Spine Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, 100000, PR China.
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Wang Z, Yuan W, Li B, Chen X, Zhang Y, Chen C, Yu M, Xiu Y, Li W, Cao J, Wang X, Tao W, Guo X, Feng S, Wang T. PEITC promotes neurite growth in primary sensory neurons via the miR-17-5p/STAT3/GAP-43 axis. J Drug Target 2018; 27:82-93. [PMID: 29877111 DOI: 10.1080/1061186x.2018.1486405] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The present study explored a key miRNA that plays a vital role in sciatic nerve conditioning injury promoting repair of injured dorsal column, and validated its function. Microarray analysis revealed miR-17-5p expression decreased sharply at 3, 7 and 14 days in the sciatic nerve conditioning injury group compared with the simple dorsal column lesion group. After miR-17-5p inhibition in DRG neurons, GAP-43 expression was upregulated and neurite growth was increased. STAT3 together with p-STAT3 showed opposite trends with miR-17-5p. MiR-17-5p inhibition extended neurite and upregulated STAT3, p-STAT3 and GAP-43. To further determine a substitution therapy for sciatic nerve conditioning injury, beta-phenethyl isothiocyanate (PEITC), which downregulates miR-17-5p, was assessed. The results showed that treatment with 10 µM PEITC resulted in longest neurite length. Further experiments demonstrated PEITC induced neurite growth by inhibiting miR-17-5p and further upregulating STAT3, p-STAT3 and GAP-43. The somatosensory evoked potential test confirmed similar treatment effects for PEITC, Ad-miRNA-17-5p inhibitor, and sciatic nerve conditioning injury on the dorsal column lesion. In conclusion, the miR-17-5p/STAT3/GAP-43 axis is an indispensable component of sciatic nerve conditioning injury promoting repair of injured dorsal column. PEITC could promote repair of injured dorsal column via the miR-17-5p/STAT3/GAP-43 axis, and could mimic the treatment effect of sciatic nerve conditioning injury.
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Affiliation(s)
- Zhijie Wang
- a Department of Pediatric Internal Medicine , Affiliated Hospital of Chengde Medical University , Chengde , Hebei Province , P.R. China
| | - Wenqi Yuan
- b Department of Spinal Surgery , General Hospital of Ningxia Medical University , Yinchuan , Ningxia , P.R. China.,c Department of Orthopedics , Tianjin Medical University General Hospital , Tianjin , P.R. China
| | - Bo Li
- c Department of Orthopedics , Tianjin Medical University General Hospital , Tianjin , P.R. China
| | - Xueming Chen
- d Department of Spine Surgery , Beijing Luhe Hospital, Capital Medical University , Beijing , P.R. China
| | - Yanjun Zhang
- d Department of Spine Surgery , Beijing Luhe Hospital, Capital Medical University , Beijing , P.R. China
| | - Chuanjie Chen
- e Department of Orthopedics , Chengde Central Hospital , Chengde , Hebei Province , P.R. China
| | - Mei Yu
- f Leukemia Center, Chinese Academy of Medical Sciences & Peking Union of Medical College, Institute of Hematology & Hospital of Blood Diseases , Tianjin , P.R. China
| | - Yucai Xiu
- g Department of Orthopedics , The 266th Hospital of the Chinese People's Liberation Army , Chengde , Hebei Province , P.R. China
| | - Wenhua Li
- g Department of Orthopedics , The 266th Hospital of the Chinese People's Liberation Army , Chengde , Hebei Province , P.R. China
| | - Jiangang Cao
- h Department of Sports injury and Arthroscopy , Tianjin Hospital , Tianjin , P.R. China
| | - Xin Wang
- i Department of Neurology , The 266th Hospital of the Chinese People's Liberation Army , Chengde , Hebei Province , P.R. China
| | - Wen Tao
- i Department of Neurology , The 266th Hospital of the Chinese People's Liberation Army , Chengde , Hebei Province , P.R. China
| | - Xiaoling Guo
- i Department of Neurology , The 266th Hospital of the Chinese People's Liberation Army , Chengde , Hebei Province , P.R. China
| | - Shiqing Feng
- c Department of Orthopedics , Tianjin Medical University General Hospital , Tianjin , P.R. China
| | - Tianyi Wang
- c Department of Orthopedics , Tianjin Medical University General Hospital , Tianjin , P.R. China.,g Department of Orthopedics , The 266th Hospital of the Chinese People's Liberation Army , Chengde , Hebei Province , P.R. China
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Palliyaguru DL, Yuan JM, Kensler TW, Fahey JW. Isothiocyanates: Translating the Power of Plants to People. Mol Nutr Food Res 2018; 62:e1700965. [PMID: 29468815 PMCID: PMC6226005 DOI: 10.1002/mnfr.201700965] [Citation(s) in RCA: 101] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2017] [Revised: 02/13/2018] [Indexed: 12/19/2022]
Abstract
Isothiocyanates from cruciferous vegetables have been studied extensively in cells and in animals for their disease preventive and therapeutic effects. However, translating their utility to human populations has been both limited and challenging. Herein, clinical trials employing two isothiocyanates, sulforaphane (SFN; 1-isothiocyanato-4-(methylsulfinyl) butane) and phenethyl isothiocyanate (PEITC; 2-isothiocyanatoethylbenzene) that are isolated principally from broccoli and watercress, respectively, are summarized and discussed. Both of these compounds have been used in small human clinical trials, either within food matrices or as single agents, against a variety of diseases ranging from cancer to autism. Results suggest an opportunity to incorporate them, or more likely preparations derived from their source plants, into larger human disease mitigation efforts. The context for the applications of these compounds and plants in evidence-based food and nutritional policy is also evaluated.
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Affiliation(s)
- Dushani L Palliyaguru
- Department of Pharmacology and Chemical Biology, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Jian-Min Yuan
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
- Division of Cancer Control and Population Sciences, UPMC Hillman Cancer Center, Pittsburgh, PA, USA
| | - Thomas W Kensler
- Department of Pharmacology and Chemical Biology, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
- Division of Cancer Control and Population Sciences, UPMC Hillman Cancer Center, Pittsburgh, PA, USA
| | - Jed W Fahey
- Departments of Medicine, Pharmacology and Molecular Sciences, International Health and Cullman Chemoprotection Center, Johns Hopkins University, Baltimore, MD, USA
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Lee HJ, Han JH, Park YK, Kang MH. Effects of glutathione s-transferase ( GST) M1 and T1 polymorphisms on antioxidant vitamins and oxidative stress-related parameters in Korean subclinical hypertensive subjects after kale juice ( Brassica oleracea acephala) supplementation. Nutr Res Pract 2018; 12:118-128. [PMID: 29629028 PMCID: PMC5886963 DOI: 10.4162/nrp.2018.12.2.118] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 09/25/2017] [Accepted: 02/19/2018] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND/OBJECTIVES Glutathione s-transferase (GST) is involved in the formation of a multigene family comprising phase II detoxification enzymes, involved in the detoxification of reactive oxygen species. This study evaluated whether daily supplementation with kale juice could modulate levels of plasma antioxidant vitamins and oxidative stress-related parameters. We further examined whether this modulation was affected by combined GSTM1 and T1 polymorphisms. SUBJECTS/METHODS Totally, 84 subclinical hypertensive patients having systolic blood pressure (BP) over 130 mmHg or diastolic BP over 85 mmHg, received 300 mL of kale juice daily for 6 weeks. Blood samples were drawn before start of study and after completion of 6 weeks. RESULTS After supplementation, we observed significant decrease in DNA damage and increase in erythrocyte catalase activity in all genotypes. Plasma level of vitamin C was significantly increased in the wild/null and double null genotypes. The plasma levels of β-carotene, erythrocyte glutathione peroxidase activity, and nitric oxide were increased only in the wild/null genotype after kale juice supplementation. CONCLUSIONS The effect of kale juice was significantly greater in the GSTM1 null genotype and wild/null genotype groups, suggesting possibility of personalized nutritional prescriptions based on personal genetics.
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Affiliation(s)
- Hye-Jin Lee
- Department of Food and Nutrition, College of Life Science and Nano Technology, Hannam University, 461-6 Jeonmin-dong, Yuseong-gu, Daejeon 34054, Korea
| | - Jeong-Hwa Han
- Nutrition Safety Policy Division, Ministry of Food and Drug Safety, Chungbuk 28159, Korea
| | - Yoo Kyoung Park
- Department of Medical Nutrition, Graduate School of East-West Medical Science, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi 17104, Korea
| | - Myung-Hee Kang
- Department of Food and Nutrition, College of Life Science and Nano Technology, Hannam University, 461-6 Jeonmin-dong, Yuseong-gu, Daejeon 34054, Korea
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Ramirez CN, Li W, Zhang C, Wu R, Su S, Wang C, Gao L, Yin R, Kong ANT. Correction to: In Vitro-In Vivo Dose Response of Ursolic Acid, Sulforaphane, PEITC, and Curcumin in Cancer Prevention. AAPS JOURNAL 2018; 20:27. [PMID: 29411155 DOI: 10.1208/s12248-018-0190-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The citation of the author name "Ah-Ng Tony Kong" in PubMed is not the author's preference. Instead of "Kong AT", the author prefers "Kong AN".
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Affiliation(s)
- Christina N Ramirez
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA.,Cellular and Molecular Pharmacology Program, Rutgers Robert Wood Johnson Medical School, Piscataway, New Jersey, 08854, USA
| | - Wenji Li
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA.,Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
| | - Chengyue Zhang
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA.,Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA.,Graduate Program in Pharmaceutical Sciences, Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
| | - Renyi Wu
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA.,Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
| | - Shan Su
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA.,Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
| | - Chao Wang
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA.,Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
| | - Linbo Gao
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA.,Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
| | - Ran Yin
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA.,Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
| | - Ah-Ng Tony Kong
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA. .,Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA. .,Graduate Program in Pharmaceutical Sciences, Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA. .,Ernest Mario School of Pharmacy, Room 228, Rutgers, The State University of New Jersey, 160 Frelinghuysen Road, Piscataway, New Jersey, 08854, USA.
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10
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Ramirez CN, Li W, Zhang C, Wu R, Su S, Wang C, Gao L, Yin R, Kong AN. In Vitro-In Vivo Dose Response of Ursolic Acid, Sulforaphane, PEITC, and Curcumin in Cancer Prevention. AAPS J 2017; 20:19. [PMID: 29264822 PMCID: PMC6021020 DOI: 10.1208/s12248-017-0177-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 11/29/2017] [Indexed: 02/07/2023] Open
Abstract
According to the National Center of Health Statistics, cancer was the culprit of nearly 600,000 deaths in 2016 in the USA. It is by far one of the most heterogeneous diseases to treat. Treatment for metastasized cancers remains a challenge despite modern diagnostics and treatment regimens. For this reason, alternative approaches are needed. Chemoprevention using dietary phytochemicals such as triterpenoids, isothiocyanates, and curcumin in the prevention of initiation and/or progression of cancer poses a promising alternative strategy. However, significant challenges exist in the extrapolation of in vitro cell culture data to in vivo efficacy in animal models and to humans. In this review, the dose at which these phytochemicals elicit a response in vitro and in vivo of a multitude of cellular signaling pathways will be reviewed highlighting Nrf2-mediated antioxidative stress, anti-inflammation, epigenetics, cytoprotection, differentiation, and growth inhibition. The in vitro-in vivo dose response of phytochemicals can vary due, in part, to the cell line/animal model used, the assay system of the biomarker used for the readout, chemical structure of the functional analog of the phytochemical, and the source of compounds used for the treatment study. While the dose response varies across different experimental designs, the chemopreventive efficacy appears to remain and demonstrate the therapeutic potential of triterpenoids, isothiocyanates, and curcumin in cancer prevention and in health in general.
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Affiliation(s)
- Christina N Ramirez
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
- Cellular and Molecular Pharmacology Program, Rutgers Robert Wood Johnson Medical School, Piscataway, New Jersey, 08854, USA
| | - Wenji Li
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
| | - Chengyue Zhang
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
- Graduate Program in Pharmaceutical Sciences, Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
| | - Renyi Wu
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
| | - Shan Su
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
| | - Chao Wang
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
| | - Linbo Gao
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
| | - Ran Yin
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
| | - Ah-Ng Kong
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA.
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA.
- Graduate Program in Pharmaceutical Sciences, Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA.
- Ernest Mario School of Pharmacy, Room 228, Rutgers, The State University of New Jersey, 160 Frelinghuysen Road, Piscataway, New Jersey, 08854, USA.
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11
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Ioannides C, Konsue N. A principal mechanism for the cancer chemopreventive activity of phenethyl isothiocyanate is modulation of carcinogen metabolism. Drug Metab Rev 2015; 47:356-73. [PMID: 26119477 DOI: 10.3109/03602532.2015.1058819] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Isothiocyanates are small molecules characterized by high chemical reactivity that allows them to interact readily with cellular constituents eliciting a plethora of biological activities. They are present exclusively in cruciferous vegetables, as glucosinolates, the intake of which has been associated with cancer chemoprevention. When the physical structure of these vegetables is disturbed, e.g. during mastication, the enzyme myrosinase is released and converts the glucosinolates to isothiocyanates (R-N=C=S), where R can be aliphatic or aromatic. Although sulforaphane, an aliphatic isothiocyanate, has received most attention worldwide, the most extensively studied aromatic isothiocyanate is phenethyl isothiocyanate (PEITC), and there are substantial differences in biological activity between the two sub-classes. In animal cancer models, PEITC effectively antagonized the carcinogenicity of chemicals, especially nitrosocompounds. A principal mechanism of their action is to protect the integrity of DNA by decreasing the levels of the genotoxic metabolites of chemical carcinogens. Extensive studies established that PEITC modulates the metabolism of the tobacco-specific carcinogenic nitrosamine 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK) by inhibiting its cytochrome P450-mediated bioactivation. Moreover, PEITC is a potent inducer of detoxification enzymes such as quinone reductase, glutathione S-transferase and glucuronosyl transferase. PEITC is rapidly absorbed and is characterized by a large bioavailability; Cmax concentrations achieved in plasma after dietary intake are sufficient to modulate carcinogen metabolism. PEITC is primarily metabolized by glutathione conjugation and is excreted in the urine and bile as the mercapturate. The ability of PEITC to perturb carcinogen metabolism through modulation of cytochrome P450 and phase II detoxification enzymes is comprehensively and critically reviewed.
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Affiliation(s)
- Costas Ioannides
- a Molecular Toxicology Group, Faculty of Health and Medical Sciences, School of Biosciences and Medicine, University of Surrey , Guildford, Surrey , UK and
| | - Nattaya Konsue
- b Food Technology Program, School of Agro-Industry, Mae Fah Luang University , Chiang Rai , Thailand
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12
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Modulation of Metabolic Detoxification Pathways Using Foods and Food-Derived Components: A Scientific Review with Clinical Application. J Nutr Metab 2015; 2015:760689. [PMID: 26167297 PMCID: PMC4488002 DOI: 10.1155/2015/760689] [Citation(s) in RCA: 101] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Accepted: 03/20/2015] [Indexed: 12/16/2022] Open
Abstract
Research into human biotransformation and elimination systems continues to evolve. Various clinical and in vivo studies have been undertaken to evaluate the effects of foods and food-derived components on the activity of detoxification pathways, including phase I cytochrome P450 enzymes, phase II conjugation enzymes, Nrf2 signaling, and metallothionein. This review summarizes the research in this area to date, highlighting the potential for foods and nutrients to support and/or modulate detoxification functions. Clinical applications to alter detoxification pathway activity and improve patient outcomes are considered, drawing on the growing understanding of the relationship between detoxification functions and different disease states, genetic polymorphisms, and drug-nutrient interactions. Some caution is recommended, however, due to the limitations of current research as well as indications that many nutrients exert biphasic, dose-dependent effects and that genetic polymorphisms may alter outcomes. A whole-foods approach may, therefore, be prudent.
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Han JH, Lee HJ, Kim TS, Kang MH. The effect of glutathione S-transferase M1 and T1 polymorphisms on blood pressure, blood glucose, and lipid profiles following the supplementation of kale (Brassica oleracea acephala) juice in South Korean subclinical hypertensive patients. Nutr Res Pract 2015; 9:49-56. [PMID: 25671068 PMCID: PMC4317480 DOI: 10.4162/nrp.2015.9.1.49] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 11/13/2014] [Accepted: 11/19/2014] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND/OBJECTIVES Glutathione S-transferase (GST) forms a multigene family of phase II detoxification enzymes which are involved in the detoxification of reactive oxygen species. This study examines whether daily supplementation of kale juice can modulate blood pressure (BP), levels of lipid profiles, and blood glucose, and whether this modulation could be affected by the GSTM1 and GSTT1 polymorphisms. SUBJECTS/METHODS 84 subclinical hypertensive patients showing systolic BP over 130 mmHg or diastolic BP over 85 mmHg received 300 ml/day of kale juice for 6 weeks, and blood samples were collected on 0-week and 6-week in order to evaluate plasma lipid profiles (total cholesterol, triglyceride, HDL-cholesterol, and LDL-cholesterol) and blood glucose. RESULTS Systolic and diastolic blood pressure was significantly decreased in all patients regardless of their GSTM1 or GSTT1 polymorphisms after kale juice supplementation. Blood glucose level was decreased only in the GSTM1-present genotype, and plasma lipid profiles showed no difference in both the GSTM1-null and GSTM1-present genotypes. In the case of GSTT1, on the other hand, plasma HDL-C was increased and LDL-C was decreased only in the GSTT1-present type, while blood glucose was decreased only in the GSTT1-null genotype. CONCLUSIONS These findings suggest that the supplementation of kale juice affected blood pressure, lipid profiles, and blood glucose in subclinical hypertensive patients depending on their GST genetic polymorphisms, and the improvement of lipid profiles was mainly greater in the GSTT1-present genotype and the decrease of blood glucose was greater in the GSTM1-present or GSTT1-null genotypes.
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Affiliation(s)
- Jeong-Hwa Han
- Department of Food and Nutrition, College of Life Science and Nano-technology, Hannam University, 461-6 Jeonmin-dong, Yuseong-gu, Daejeon 305-811, Korea
| | - Hye-Jin Lee
- Department of Food and Nutrition, College of Life Science and Nano-technology, Hannam University, 461-6 Jeonmin-dong, Yuseong-gu, Daejeon 305-811, Korea
| | - Tae-Seok Kim
- R&D Center, Pulmuone Co., Ltd., Seodaemun-gu, Seoul 120-600, Korea
| | - Myung-Hee Kang
- Department of Food and Nutrition, College of Life Science and Nano-technology, Hannam University, 461-6 Jeonmin-dong, Yuseong-gu, Daejeon 305-811, Korea
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14
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Gupta P, Wright SE, Kim SH, Srivastava SK. Phenethyl isothiocyanate: a comprehensive review of anti-cancer mechanisms. Biochim Biophys Acta Rev Cancer 2014; 1846:405-24. [PMID: 25152445 DOI: 10.1016/j.bbcan.2014.08.003] [Citation(s) in RCA: 97] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Revised: 08/11/2014] [Accepted: 08/13/2014] [Indexed: 01/22/2023]
Abstract
The epidemiological evidence suggests a strong inverse relationship between dietary intake of cruciferous vegetables and the incidence of cancer. Among other constituents of cruciferous vegetables, isothiocyanates (ITC) are the main bioactive chemicals present. Phenethyl isothiocyanate (PEITC) is present as gluconasturtiin in many cruciferous vegetables with remarkable anti-cancer effects. PEITC is known to not only prevent the initiation phase of carcinogenesis process but also to inhibit the progression of tumorigenesis. PEITC targets multiple proteins to suppress various cancer-promoting mechanisms such as cell proliferation, progression and metastasis. Pre-clinical evidence suggests that combination of PEITC with conventional anti-cancer agents is also highly effective in improving overall efficacy. Based on accumulating evidence, PEITC appears to be a promising agent for cancer therapy and is already under clinical trials for leukemia and lung cancer. This is the first review which provides a comprehensive analysis of known targets and mechanisms along with a critical evaluation of PEITC as a future anti-cancer agent.
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Affiliation(s)
- Parul Gupta
- Department of Biomedical Sciences and Cancer Biology Center, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA
| | - Stephen E Wright
- Department of Biomedical Sciences and Cancer Biology Center, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA; Department of Internal Medicine, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA
| | - Sung-Hoon Kim
- Cancer Preventive Material Development Research Center, College of Korean Medicine, Department of Pathology, Kyunghee University, 1 Hoegi-dong, Dongdaemun-ku, Seoul 131-701, South Korea.
| | - Sanjay K Srivastava
- Department of Biomedical Sciences and Cancer Biology Center, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA; Cancer Preventive Material Development Research Center, College of Korean Medicine, Department of Pathology, Kyunghee University, 1 Hoegi-dong, Dongdaemun-ku, Seoul 131-701, South Korea.
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15
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Riso P, Del Bo' C, Vendrame S, Brusamolino A, Martini D, Bonacina G, Porrini M. Modulation of plasma antioxidant levels, glutathione S-transferase activity and DNA damage in smokers following a single portion of broccoli: a pilot study. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2014; 94:522-528. [PMID: 23872866 DOI: 10.1002/jsfa.6283] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Revised: 06/08/2013] [Accepted: 06/16/2013] [Indexed: 06/02/2023]
Abstract
BACKGROUND Broccoli is a rich source of bioactive compounds (i.e. glucosinolates, carotenoids, vitamin C and folate) that may exert an antioxidant effect and reduce oxidative damage. The objective of this pilot study was to investigate the effect of broccoli consumption on carotenoids, vitamin C and folate absorption, glutathione S-transferase (GST) activity, and oxidatively induced DNA damage in male smokers. METHODS Ten healthy subjects consumed a single portion of steamed broccoli (250 g) with cooked pasta. Blood was drawn at baseline and at 3, 6 and 24 h from consumption. RESULTS Broccoli significantly (P ≤ 0.01) increased plasma level of vitamin C and folate (+35% and 70%, respectively) at 3 h, and β-carotene (+8%) at 6 h. A modulation of GST activity occurred in plasma 6 h after broccoli consumption. A significant (P ≤ 0.01) reduction of the levels of H₂O₂-induced DNA damage (-18%) was observed in blood mononuclear cells 24 h after broccoli intake in GSTM1 positive, but not in GSTM1 null subjects. CONCLUSION One portion of broccoli increased plasma antioxidant levels, modulated plasma GST activity and improved cell resistance against H₂O₂-induced DNA damage in healthy smokers. These results support the importance of consuming fruit and vegetable regularly.
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Affiliation(s)
- Patrizia Riso
- Università degli Studi di Milano, DeFENS-Department of Food, Environmental and Nutritional Sciences, via Celoria 2, 20133, Milan, Italy
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16
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Riso P, Del Bo’ C, Vendrame S. Preventive Effects of Broccoli Bioactives. Cancer 2014. [DOI: 10.1016/b978-0-12-405205-5.00011-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
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Karunasinghe N, Han DY, Zhu S, Duan H, Ko YJ, Yu JF, Triggs CM, Ferguson LR. Effects of supplementation with selenium, as selenized yeast, in a healthy male population from New Zealand. Nutr Cancer 2013; 65:355-66. [PMID: 23530634 DOI: 10.1080/01635581.2013.760743] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Selenium (Se) supplementation was tested in a group of healthy men from Auckland, New Zealnd with selenized yeast (Selplex, 200 μg/day) as the supplementation mode. A set of biomarkers, including DNA damage levels and seleno-antioxidant enzyme levels, were evaluated at pre- and postsupplementation time points. Supplementation produced significant increases in serum Se levels, red blood cell (RBC) thioredoxin reductase (TR) activity and peroxide-induced DNA damage, when the mean baseline serum Se level was 110 ng/ml. Those with higher baseline serum Se levels gained less serum Se and showed a significant reduction of RBC glutathione peroxidase (GPx) activity by supplementation. The optimum benefits of supplementation on DNA stability are observed when the serum Se level reaches between >120 and <160 ng/ml. However, the most significant observation was that those with highest baseline DNA damage benefit the most from Se supplementation, whereas those having lower baseline DNA damage are disadvantaged. A dose of 200 μg/day selenized yeast was also shown to be a safer supplementation option compared to a similar dose of selenomethionine (SeMet). This study highlights the requirement for prestratification of a population by standing serum Se level and baseline DNA damage level, before any Se supplementation is carried out.
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Affiliation(s)
- Nishi Karunasinghe
- Auckland Cancer Society Research Centre, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand
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18
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Jeon GI, Shin MJ, Lee KH, Park E. Effect of onion juice supplementation on antioxidant status in participants with mild hypercholesterolemia. Food Sci Biotechnol 2013. [DOI: 10.1007/s10068-013-0071-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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19
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Eichholzer M, Steinbrecher A, Kaaks R, Teucher B, Linseisen J, Rohrmann S. Effects of selenium status, dietary glucosinolate intake and serum glutathione S-transferase α activity on the risk of benign prostatic hyperplasia. BJU Int 2012; 110:E879-85. [PMID: 22882569 DOI: 10.1111/j.1464-410x.2012.11383.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
UNLABELLED Study Type--Prognosis (case control) Level of Evidence 2. What's known on the subject? and What does the study add? Geographical and ethnic differences in the distribution of BPH and the results of migrant studies indicate that not only age, androgens and genetics, but also modifiable factors may play a role in the aetiology of BPH. Oxidative stress induced by chronic inflammation could be a cause and antioxidants, including selenoproteins, may reduce the risk. The published data related to this topic are scarce and are mainly based on cross-sectional and case-control studies. In a nested case-control study, we observed a significant inverse association between serum selenium concentrations and the risk of BPH. These results need to be confirmed in larger, prospective epidemiological studies. Prostate enlargement is an increasing health problem as a result of an ageing population in many countries. Modifiable factors may also play a role. In the present study, before this antioxidant can be recommended as a preventive measure. OBJECTIVE • To determine whether geographical differences in the distribution of benign prostatic hyperplasia (BPH) and migrant studies indicate that modifiable factors play a role in the aetiology of BPH. Oxidative stress produced by chronic inflammation could represent one of the causes, and antioxidants, including selenoproteins, may reduce the risk. SUBJECTS AND METHODS • Conditional logistic regression was used to examine the associations of serum selenium and selenoprotein P concentrations and glutathione peroxidase activity with respect to the risk of BPH in a case-control study nested in the European Prospective Investigation into Cancer and Nutrition-Heidelberg cohort, including 111 cases and 214 matched controls. • In addition, dietary glucosinolate intake and the serum glutathione S-transferase α concentration was investigated. RESULTS • The risk of BPH significantly decreased with an increasing serum selenium concentration; the risk estimate was 0.83 (35% CI 0.69-0.99) per 10 µg/L increase in serum selenium concentration. • However, no significant association was present for serum selenoprotein P concentration or glutathione peroxidase activity. Risk estimates for BPH decreased with a higher intake of glucosinolates, although the results were not statistically significant. CONCLUSION • A low serum selenium concentration may increase the risk of BPH, although the findings reported in the present study need to be confirmed in larger, well-designed epidemiological studies.
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Affiliation(s)
- Monika Eichholzer
- Division of Cancer Epidemiology and Prevention, Institute of Social and Preventive Medicine University of Zurich, Z ürich, Switzerland
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20
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Hochstenbach K, van Leeuwen D, Gottschalk R, Gmuender H, Stølevik S, Nygaard U, Løvik M, Granum B, Namork E, van Loveren H, van Delft J. Transcriptomic fingerprints in human peripheral blood mononuclear cells indicative of genotoxic and non-genotoxic carcinogenic exposure. MUTATION RESEARCH/GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2012; 746:124-34. [DOI: 10.1016/j.mrgentox.2012.01.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2012] [Accepted: 01/05/2012] [Indexed: 04/11/2023]
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21
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Rodríguez-Fragoso L, Martínez-Arismendi JL, Orozco-Bustos D, Reyes-Esparza J, Torres E, Burchiel SW. Potential risks resulting from fruit/vegetable-drug interactions: effects on drug-metabolizing enzymes and drug transporters. J Food Sci 2012; 76:R112-24. [PMID: 22417366 DOI: 10.1111/j.1750-3841.2011.02155.x] [Citation(s) in RCA: 139] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
It has been well established that complex mixtures of phytochemicals in fruits and vegetables can be beneficial for human health. Moreover, it is becoming increasingly apparent that phytochemicals can influence the pharmacological activity of drugs by modifying their absorption characteristics through interactions with drug transporters as well as drug-metabolizing enzyme systems. Such effects are more likely to occur in the intestine and liver, where high concentrations of phytochemicals may occur. Alterations in cytochrome P450 and other enzyme activities may influence the fate of drugs subject to extensive first-pass metabolism. Although numerous studies of nutrient-drug interactions have been published and systematic reviews and meta-analyses of these studies are available, no generalizations on the effect of nutrient-drug interactions on drug bioavailability are currently available. Several publications have highlighted the unintended consequences of the combined use of nutrients and drugs. Many phytochemicals have been shown to have pharmacokinetic interactions with drugs. The present review is limited to commonly consumed fruits and vegetables with significant beneficial effects as nutrients and components in folk medicine. Here, we discuss the phytochemistry and pharmacokinetic interactions of the following fruit and vegetables: grapefruit, orange, tangerine, grapes, cranberry, pomegranate, mango, guava, black raspberry, black mulberry, apple, broccoli, cauliflower, watercress, spinach, tomato, carrot, and avocado. We conclude that our knowledge of the potential risk of nutrient-drug interactions is still limited. Therefore, efforts to elucidate potential risks resulting from food-drug interactions should be intensified in order to prevent undesired and harmful clinical consequences.
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Lamy E, Schmitz S, Krumbein A, Mersch-Sundermann V. Isothiocyanate-containing mustard protects human cells against genotoxins in vitro and in vivo. Mutat Res 2011; 726:146-50. [PMID: 21930236 DOI: 10.1016/j.mrgentox.2011.09.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2011] [Revised: 08/29/2011] [Accepted: 08/31/2011] [Indexed: 11/27/2022]
Abstract
BACKGROUND Human intervention trials in which cytogenetic biomarkers are used as intermediate endpoints in carcinogenesis are implicitly required to support the assumption of chemo-preventive efficacy. METHODS To evaluate the genotoxic and anti-genotoxic properties of defined isothiocyanate-containing mustard, we first used a human liver cell-line and then conducted a controlled pilot human intervention trial. Blood from volunteers served as surrogate tissue for time-kinetic analysis of the chemo-preventive effect of mustard consumption. RESULTS Mustard extracts displayed significant anti-genotoxicity against benzo(a)pyrene in human HepG2 hepatoma cells. At high concentrations, the extracts induced genotoxicity by themselves without compromising cell viability. The protective effect of mustard supplementation against DNA damage induced ex vivo was detected in blood of volunteers within 12h after the start of the intervention, and increased over time. No genotoxicity was induced in human peripheral mononuclear blood cells by mustard intake over the whole period of the study. Also, liver parameters remained within the normal range at all times. Although no change in total plasma GST activity was detected, plasma alpha-GST levels increased over time, peaking at 48 h. CONCLUSIONS The results suggest the capacity of small amounts of isothiocyanate-containing food to protect cells from DNA damage, even with short-term application.
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Affiliation(s)
- Evelyn Lamy
- Department of Environmental Health Sciences, University Medical Center Freiburg, Freiburg, Germany.
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23
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Butler MW, Hackett NR, Salit J, Strulovici-Barel Y, Omberg L, Mezey J, Crystal RG. Glutathione S-transferase copy number variation alters lung gene expression. Eur Respir J 2011; 38:15-28. [PMID: 21349909 DOI: 10.1183/09031936.00029210] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The glutathione S-transferase (GST) enzymes catalyse the conjugation of xenobiotics to glutathione. Based on reports that inherited copy number variations (CNVs) modulate some GST gene expression levels, and that the small airway epithelium (SAE) and alveolar macrophages (AMs) are involved early in the pathogenesis of smoking-induced lung disease, we asked: do germline CNVs modulate GST expression levels in SAE and AMs? Microarrays were used to survey GST gene expression and determine CNVs genotypes in SAE and AMs obtained by bronchoscopy from current smokers and nonsmokers. 26% of subjects were null for both GSTM1 alleles, with reduced GSTM1 mRNA levels seen in both SAE and AMs. 30% of subjects had homozygous deletions of GSTT1, with reduced mRNA levels in both tissues. Interestingly, GSTT2B exhibited homozygous deletion in the blood of 27% of subjects and was not expressed in SAE in the remainder of subjects, but was expressed in AMs of heterozygotes and wild-type subjects, proportionate to genotype. These data show a germline CNV-mediated linear relationship of genotype with expression level, suggesting minimal compensation of gene expression levels in heterozygotes, consistent with GST polymorphisms playing a role in the risk of smoking-associated, xenobiotic-induced lung disease.
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Affiliation(s)
- M W Butler
- Dept of Genetic Medicine, Weill Cornell Medical College, New York, NY 10065, USA
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Riso P, Martini D, Møller P, Loft S, Bonacina G, Moro M, Porrini M. DNA damage and repair activity after broccoli intake in young healthy smokers. Mutagenesis 2010; 25:595-602. [PMID: 20713433 DOI: 10.1093/mutage/geq045] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Cruciferous vegetables contain compounds with antioxidant properties (e.g. carotenoids, vitamin C and folates) and can alter the activity of xenobiotic metabolism (i.e. isothiocyanates). These constituents may be particularly important for subjects who are exposed to free radicals and genotoxic compounds, including smokers. The aim of the study was to evaluate the effect of broccoli intake on biomarkers of DNA damage and repair. Twenty-seven young healthy smokers consumed a portion of steamed broccoli (250 g/day) or a control diet for 10 days each within a crossover design with a washout period. Blood was collected before and after each period. The level of oxidatively damaged DNA lesions (formamidopyrimidine DNA glycosylase-sensitive sites), resistance to ex vivo H(2)O(2) treatment and repair of oxidised DNA lesions were measured in peripheral blood mononuclear cells (PBMCs). We also measured mRNA expression levels of repair and defence enzymes: 8-oxoguanine DNA glycosylase (OGG1), nucleoside diphosphate linked moiety X-type motif 1 (NUDT1) and heme oxygenase 1 (HO-1). After broccoli consumption, the level of oxidised DNA lesions decreased by 41% (95% confidence interval: 10%, 72%) and the resistance to H(2)O(2)-induced DNA strand breaks increased by 23% (95% CI: 13%, 34%). Following broccoli intake, a higher protection was observed in subjects with glutathione S-transferase (GST) M1-null genotype. The expression level and activity of repair enzymes was unaltered. In conclusion, broccoli intake was associated with increased protection against H(2)O(2)-induced DNA strand breaks and lower levels of oxidised DNA bases in PBMCs from smokers. This protective effect could be related to an overall improved antioxidant status.
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Affiliation(s)
- Patrizia Riso
- Dipartimento di Scienze e Tecnologie Alimentari e Microbiologiche, sezione Nutrizione Umana, Università degli Studi di Milano, 20133 Milano, Italy.
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In vivo modulation of 4E binding protein 1 (4E-BP1) phosphorylation by watercress: a pilot study. Br J Nutr 2010; 104:1288-96. [PMID: 20546646 DOI: 10.1017/s0007114510002217] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Dietary intake of isothiocyanates (ITC) has been associated with reduced cancer risk. The dietary phenethyl ITC (PEITC) has previously been shown to decrease the phosphorylation of the translation regulator 4E binding protein 1 (4E-BP1). Decreased 4E-BP1 phosphorylation has been linked to the inhibition of cancer cell survival and decreased activity of the transcription factor hypoxia-inducible factor (HIF), a key positive regulator of angiogenesis, and may therefore contribute to potential anti-cancer effects of PEITC. In the present study, we have investigated the in vitro and in vivo effects of watercress, which is a rich source of PEITC. We first demonstrated that, similar to PEITC, crude watercress extracts inhibited cancer cell growth and HIF activity in vitro. To examine the effects of dietary intake of watercress, we obtained plasma and peripheral blood mononuclear cells following the ingestion of an 80 g portion of watercress from healthy participants who had previously been treated for breast cancer. Analysis of PEITC in plasma samples from nine participants demonstrated a mean maximum plasma concentration of 297 nm following the ingestion of watercress. Flow cytometric analysis of 4E-BP1 phosphorylation in peripheral blood cells from four participants demonstrated significantly reduced 4E-BP1 phosphorylation at 6 and 8 h following the ingestion of watercress. Although further investigations with larger numbers of participants are required to confirm these findings, this pilot study suggests that flow cytometry may be a suitable approach to measure changes in 4E-BP1 phosphorylation following the ingestion of watercress, and that dietary intake of watercress may be sufficient to modulate this potential anti-cancer pathway.
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