1
|
Wang T, Lu SY, Dan L, Sun Y, Fu T, Tian L, Chen J. Higher Dietary Quercetin Intake Is Associated with Lower Risk of Adverse Outcomes among Individuals with Inflammatory Bowel Disease in a Prospective Cohort Study. J Nutr 2024:S0022-3166(24)00229-3. [PMID: 38677479 DOI: 10.1016/j.tjnut.2024.04.025] [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: 12/26/2023] [Revised: 04/15/2024] [Accepted: 04/23/2024] [Indexed: 04/29/2024] Open
Abstract
BACKGROUND Cumulative preclinical evidence reported quercetin, a major flavonoid, can attenuate the disease activity of inflammatory bowel diseases (IBD). However, there is limited evidence that supports the benefits of quercetin for patients with IBD. OBJECTIVES To investigate whether dietary quercetin intake is associated with adverse outcomes among individuals with IBD in a prospective cohort study. METHODS We included 2293 participants with IBD (764 Crohn's disease [CD] and 1529 ulcerative colitis [UC]) from the UK Biobank. Dietary information was collected using validated 24-h dietary assessments, and quercetin intake was estimated based on national nutrient databases. Two outcomes, enterotomy and all-cause mortality, were obtained based on the national data. Cox proportional hazard models were used to estimate the hazard ratios (HRs) and 95% confidence intervals (CIs). RESULTS After a mean (standard deviation) follow-up of 9.6 (1.8) y, we documented 193 enterotomy events and 176 deaths. Compared with participants with the lowest quartile intake of quercetin, those in the highest quartiles were associated with lower risk of enterotomy (HR: 0.46; 95% CI: 0.28, 0.76) and all-cause mortality (HR: 0.53; 95% CI: 0.33, 0.83) in IBD. The inverse associations between quercetin and enterotomy were consistent in CD (HR: 0.30; 95% CI: 0.12, 0.78) but not UC (HR: 0.58; 95% CI: 0.32, 1.07), while the inverse associations between quercetin and mortality were consistent both in CD (HR: 0.37; 95% CI: 0.15, 0.92) and UC (HR: 0.55; 95% CI: 0.31, 0.95). CONCLUSIONS Higher dietary intake of quercetin was associated with lower risk of enterotomy and all-cause mortality in IBD. Our study provides novel evidence that further suggests the benefits of quercetin for patients with IBD, while also calling for further validation in other cohorts and clinical trials.
Collapse
Affiliation(s)
- Tianyu Wang
- Department of Gastroenterology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Shi-Yuan Lu
- Department of Gastroenterology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Lintao Dan
- Department of Gastroenterology, The Third Xiangya Hospital, Central South University, Changsha, China; Center for Global Health, Zhejiang University School of Medicine, Hangzhou, China
| | - Yuhao Sun
- Department of Gastroenterology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Tian Fu
- Department of Gastroenterology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Li Tian
- Department of Gastroenterology, The Third Xiangya Hospital, Central South University, Changsha, China.
| | - Jie Chen
- Department of Gastroenterology, The Third Xiangya Hospital, Central South University, Changsha, China; Center for Global Health, Zhejiang University School of Medicine, Hangzhou, China.
| |
Collapse
|
2
|
Sadeghi S, Montazeri V, Zamora-Ros R, Biparva P, Sabour S, Pirouzpanah S. Food frequency questionnaire is a valid assessment tool of quercetin and kaempferol intake in Iranian breast cancer patients according to plasma biomarkers. Nutr Res 2021; 93:1-14. [PMID: 34311274 DOI: 10.1016/j.nutres.2021.06.004] [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] [Received: 12/07/2020] [Revised: 06/14/2021] [Accepted: 06/19/2021] [Indexed: 10/21/2022]
Abstract
In epidemiological and clinical studies, the most common nutritional tool to assess dietary flavonol intake is the food frequency questionnaire (FFQ), which needs to contain a detailed list of plant-based foods and be previously validated. Our study aimed to assess the accuracy of dietary flavonol (quercetin, kaempferol, and isorhamnetin) intake from a food frequency questionnaire (FFQ) compared to fasting plasma flavonol concentrations, as biomarkers of exposure, in breast cancer patients. In a consecutive case series, newly diagnosed patients with breast cancer (n = 140) were recruited at Nour-Nejat Hospital, Tabriz, Iran. Flavonol intake was assessed using a validated FFQ. Plasma flavonol concentrations were measured using high-performance liquid chromatography-ultraviolet detection. The accuracy of dietary status was evaluated using a receiver operating characteristic (ROC) and area under the ROC curve (AUC). Dietary status was shown in dichotomous using ROC-cutoff point. The plasma concentrations of quercetin were moderately correlated with dietary intake of quercetin (Spearman's correlation coefficient (rs) = 0.188, P < .05; rpartial= 0.330, P < .01) and plasma concentrations of isorhamnetin (rs = 0.337, P < .001). A linear correlation between dietary levels and plasma concentrations of kaempferol was attained (rpartial = 0.240, P < .05). Using a ROC-cutoff of 61.9 nmol/L for plasma quercetin (test reference), we were able to differentiate between lower and higher consumers of quercetin with an AUCROC-based reference =0.65 (P < .01, sensitivity = 61.8%, and specificity = 60.0%). Using a plasma kaempferol concentration of 60.1 nmol/L (ROC-cutoff), it was possible to detect significant differences between higher and lower intakes of kaempferol (AUCROC-based reference = 0.64, P < .05). The correlations and diagnostic performance with plasma concentrations could present a significant accuracy rate (validity), which seems acceptable for a nutritional questionnaire (FFQ) to assess intakes intake levels of quercetin and kaempferol. An improvement in the accuracy of the flavonol exposure can provide more precise relationship with health outcomes, which may increase their clinical significance.
Collapse
Affiliation(s)
- Sara Sadeghi
- Molecular Medicine Research Center, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Biochemistry and Dietetics, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Nanotechnology, Islamic Azad University, Langaroud Branch, Langaroud, Iran
| | - Vahid Montazeri
- Department of Thoracic Surgery, Faculty of Medicine, Tabriz University of Medical Sciences/ and also Surgery Ward, Nour-Nejat Hospital, Tabriz, Iran
| | - Raul Zamora-Ros
- Unit of Nutrition and Cancer, Cancer Epidemiology Research Programme, Catalan Institute of Oncology (ICO), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain
| | - Pourya Biparva
- Department of Nanotechnology, Islamic Azad University, Langaroud Branch, Langaroud, Iran
| | - Siamak Sabour
- Department of Clinical Epidemiology, Faculty of Health and Safety/ and also Safety Promotion and Injury Prevention Research Center, Shahid Beheshti University of Medical Sciences, Tehran 198353-5511, Iran
| | - Saeed Pirouzpanah
- Molecular Medicine Research Center, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Biochemistry and Dietetics, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
| |
Collapse
|
3
|
Magdaleno-Tapia C, Quifer-Rada P, Rodríguez-Rodríguez E, Estévez-Santiago R, Waterhouse AL, Lamuela-Reventós RM, Olmedilla-Alonso B, Pérez-Jiménez J. Evaluation of the potential of total proanthocyanidin content in feces as an intake biomarker. Food Res Int 2021; 145:110390. [PMID: 34112393 DOI: 10.1016/j.foodres.2021.110390] [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] [Received: 07/29/2020] [Revised: 04/13/2021] [Accepted: 05/03/2021] [Indexed: 12/17/2022]
Abstract
Due to the health benefits associated with proanthocyanidins (PAs), it is useful to identify dietary PA biomarkers that can be determined by simple methods. Since increased levels of circulating PA metabolites are associated with increased fecal PA content, this study explores the spectrophotometric measurement of fecal PA content and its use as a biomarker of PA intake. To this end, fecal PA content was measured using an adaptation of Porter's spectrophotometric method in samples from a preclinical study and an observational study. In the former, excretion of 250-400 mg PA polymer equivalents/100 g feces was observed during supplementation and the day after, together with a significant association (p < 0.05) between PA intake and the excretion of both intact PAs and some PA metabolites, i.e., (+)-catechin, (-)-epicatechin and syringic acid. No relationship between intake and excretion was found in the observational study, either for the entire group (mean excretion of 240 ± 226 mg PA polymer equivalents/100 g feces) or after stratification into tertiles of consumption. In conclusion, the spectrophotometric determination of total PA content in feces proved to be a valid compliance marker in a preclinical study, but it was not associated with PA intake in free-living subjects. The potential of total PA excretion in observational studies, determined in fecal samples collected the day before dietary recall or in several fecal samples from the same subject, remains to be elucidated, as does a complete validation of the method proposed here.
Collapse
Affiliation(s)
- Cristina Magdaleno-Tapia
- Dpt. Metabolism and Nutrition, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), Madrid, Spain
| | - Paola Quifer-Rada
- Dpt. Endocrinology and Nutrition, CIBER of Diabetes and Associated Metabolic Diseases, Biomedical Research Institute Sant Pau, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | | | - Rocío Estévez-Santiago
- Dpt. Metabolism and Nutrition, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), Madrid, Spain; Faculty of Experimental Sciences, Francisco de Vitoria University, Pozuelo de Alarcón, Madrid, Spain
| | | | - Rosa M Lamuela-Reventós
- Dpt. Nutrition, Food Sciences and Gastronomy, XaRTA, INSA-UB, School of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain; CIBER Physiopathology of Obesity and Nutrition (CIBER-OBN), Instituto de Salud Carlos III, Madrid, Spain
| | - Begoña Olmedilla-Alonso
- Dpt. Metabolism and Nutrition, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), Madrid, Spain
| | - Jara Pérez-Jiménez
- Dpt. Metabolism and Nutrition, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), Madrid, Spain; Dpt. Nutrition, Food Sciences and Gastronomy, XaRTA, INSA-UB, School of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain.
| |
Collapse
|
4
|
Tong C, Shi F, Tong X, Shi S, Ali I, Guo Y. Shining natural flavonols in sensing and bioimaging. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116222] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
5
|
Altemimi AB, Mohammed MJ, Yi-Chen L, Watson DG, Lakhssassi N, Cacciola F, Ibrahim SA. Optimization of Ultrasonicated Kaempferol Extraction from Ocimum basilicum Using a Box-Behnken Design and Its Densitometric Validation. Foods 2020; 9:foods9101379. [PMID: 33003426 PMCID: PMC7600635 DOI: 10.3390/foods9101379] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 09/18/2020] [Accepted: 09/27/2020] [Indexed: 12/15/2022] Open
Abstract
Kaempferol (KA) is a natural flavonol that can be found in plants and plant-derived foods with a plethora of different pharmacological properties. In the current study, we developed an efficient extraction method for the isolation of KA from ultrasonicated basil leaves (Ocimum basilicum). We successfully employed a Box-Behnken design (BBD) in order to investigate the effect of different extraction variables including methanol concentration (40-80%), extraction temperature (40-60 °C), and extraction time (5-15 min). The quantification of KA yield was carried out by employing a validated densitometric high performance thin layer chromatography in connection with ultraviolet detection (HPTLC-VIS). The obtained data showed that the quadratic polynomial model (R2 = 0.98) was the most appropriate. The optimized ultrasonic extraction yielded 94.7 ng/spot of KA when using methanol (79.99%) at 60 °C for 5 min. When using toluene-ethyl acetate-formic acid (70:30:1 v/v/v) as a solvent, KA was detected in basil leaves at an Retention factor (Rf) value of 0.26 at 330 nm. Notably, the analytical method was successfully validated with a linear regression of R2 = 0.99, which reflected a good linear relationship. The developed HPTLC-VIS method in this study was precise, accurate, and robust due to the lower obtained results from both the percent relative standard deviation (%RSD) and SEM of the O. basilicum. The antioxidant activity of KA (half maximal inhibitory concentration (IC50) = 0.68 μg/mL) was higher than that of the reference ascorbic acid (IC50 = 0.79 μg/mL) and butylated hydroxytoluene (BHT) (IC50 = 0.88 μg/mL). The development of economical and efficient techniques is very important for the extraction and quantification of important pharmaceutical compounds such as KA.
Collapse
Affiliation(s)
- Ammar B. Altemimi
- Department of Food Science, College of Agriculture, University of Basrah, Basrah 61004, Iraq
- Correspondence: (A.B.A.); (F.C.); Tel.: +964-773-5640-090 (A.B.A.); +39-090-676570 (F.C.)
| | - Muthanna J. Mohammed
- Department of Biology, College of Education for Pure Sciences, University of Mosul, Mosul 41002, Iraq;
| | - Lee Yi-Chen
- School of Agricultural Sciences, Southern Illinois University at Carbondale, Carbondale, IL 62901, USA; (L.Y.-C.); (D.G.W.); (N.L.)
| | - Dennis G. Watson
- School of Agricultural Sciences, Southern Illinois University at Carbondale, Carbondale, IL 62901, USA; (L.Y.-C.); (D.G.W.); (N.L.)
| | - Naoufal Lakhssassi
- School of Agricultural Sciences, Southern Illinois University at Carbondale, Carbondale, IL 62901, USA; (L.Y.-C.); (D.G.W.); (N.L.)
| | - Francesco Cacciola
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, 98125 Messina, Italy
- Correspondence: (A.B.A.); (F.C.); Tel.: +964-773-5640-090 (A.B.A.); +39-090-676570 (F.C.)
| | - Salam A. Ibrahim
- Food and Nutritional Sciences Program, North Carolina A & T State University, Greensboro, NC 27411, USA;
| |
Collapse
|