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Wang Z, Cheng Y, Muhoza B, Sun M, Feng T, Yao L, Liu Q, Song S. Discovery of peptides with saltiness-enhancing effects in enzymatic hydrolyzed Agaricus bisporus protein and evaluation of their salt-reduction property. Food Res Int 2024; 177:113917. [PMID: 38225152 DOI: 10.1016/j.foodres.2023.113917] [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: 09/17/2023] [Revised: 12/14/2023] [Accepted: 12/21/2023] [Indexed: 01/17/2024]
Abstract
This study aimed to screen peptides with saltiness-enhancing effects from enzymatic hydrolyzed Agaricus bisporus protein and quantify their salt-reduction. The saltiness evaluation standard curve was first established to evaluate salinity. The peptide fractions (U-1, U-2, and U-3) were obtained from enzymatic hydrolyzed Agaricus bisporus protein by ultrafiltration. Quantitative calculations showed that the U-2 fraction (200-2000 Da) had the strongest saltiness-enhancing effect, and its perceived saltiness in 50 mmol NaCl solution was 60.24 ± 0.10 mmol/L. The peptide sequences were identified by liquid chromatography/mass spectrometry (LC-MS/MS). Results suggested that the potential peptides with saltiness-enhancing effects were umami peptides. Molecular docking with the umami receptor T1R1/T1R3 revealed that the key amino acid residues were Asp82, Glu392, Glu270, and Asp269. Furthermore, peptide YDPNDPEK (976.4138 Da), DDWDEDAPR(1117.4312 Da), and DVPDGPPPE (1058.4668 Da) were synthesized for salt-reduction quantification. 0.4 % peptide YDPNDPEK in NaCl solution was found to have a salt-reduction of 30 %, which provided the basic theory and data for the salt-reduction of peptide in enzymatic hydrolyzed Agaricus bisporus protein.
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Affiliation(s)
- Zhangjingyi Wang
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, China
| | - Yunpeng Cheng
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, China
| | - Bertrand Muhoza
- College of Food Science, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, Heilongjiang, China
| | - Min Sun
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, China
| | - Tao Feng
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, China
| | - Linyun Yao
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, China
| | - Qian Liu
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, China.
| | - Shiqing Song
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, China.
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Xia X, Song S, Zhou T, Zhang H, Cui H, Zhang F, Hayat K, Zhang X, Ho CT. Preparation of Saltiness-Enhancing Enzymatic Hydrolyzed Pea Protein and Identification of the Functional Small Peptides of Salt Reduction. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:8140-8149. [PMID: 37202341 DOI: 10.1021/acs.jafc.3c02046] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
According to the correlation of saltiness determined by electronic tongue and perceived NaCl concentration, favorable enzymatic hydrolysis parameters were achieved to prepare the saltiness enhancing mixture peptides from pea protein. Six peptide fractions (F1, F2, F3, F4, F5, and F6) were isolated using Sephadex G-10 gel filtration. Among them, fraction F4 (0.1%) exhibited the highest saltiness (5.90 ± 0.03). The amino acid sequences of five main peptides identified by time-of-flight mass spectrometry were Tyr-Trp (367.40 Da), Gly-Glu-His-Glu (470.43 Da), Glu-Arg-Phe-Gly-Pro (604.65 Da), Gly-Ala-Gly-Lys (331.37 Da), and Pro-Gly-Ala-Gly-Asn (414.41 Da). Tyr-Trp (0.01%) in 0.4% NaCl solution had a 20% saltiness-enhancement compared with 0.4% NaCl solution. More salivary aldosterone was secreted after tasting hydrolysate or Tyr-Trp solutions via enzyme-linked immunosorbent assay, reflecting the improvement of human sensitivity to saltiness. Thereby, the saltiness-enhancing effect was confirmed for the small peptides from hydrolyzed pea protein and the main contributor was further identified.
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Affiliation(s)
- Xue Xia
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Avenue, Wuxi, 214122 Jiangsu, P. R. China
| | - Shiqing Song
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 200235, P. R. China
| | - Tong Zhou
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Avenue, Wuxi, 214122 Jiangsu, P. R. China
| | - Han Zhang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Avenue, Wuxi, 214122 Jiangsu, P. R. China
| | - Heping Cui
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Avenue, Wuxi, 214122 Jiangsu, P. R. China
| | - Foxin Zhang
- Anhui Qiang Wang Flavouring Food Co., Ltd., No. 1 Shengli Road, Jieshou, Fuyang, 236500 Anhui, P. R. China
| | - Khizar Hayat
- Department of Kinesiology, Nutrition, and Health, Miami University, Oxford, Ohio 45056, United States
| | - Xiaoming Zhang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Avenue, Wuxi, 214122 Jiangsu, P. R. China
| | - Chi-Tang Ho
- Department of Food Science, Rutgers University, 65 Dudley Road, New Brunswick, New Jersey 08901, United States
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Gregory S, Denham SG, Lee P, Simpson JP, Homer NZM. Using LC-MS/MS to Determine Salivary Steroid Reference Intervals in a European Older Adult Population. Metabolites 2023; 13:metabo13020265. [PMID: 36837884 PMCID: PMC9963097 DOI: 10.3390/metabo13020265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 01/26/2023] [Accepted: 02/08/2023] [Indexed: 02/17/2023] Open
Abstract
A number of steroids, including glucocorticoids and sex hormones, have been associated with neurodegenerative and cardiovascular conditions common in aging populations. The application of liquid chromatography tandem mass spectrometry (LC-MS/MS) steroid analysis offers an opportunity to conduct simultaneous multiplex steroid analysis within a given sample. In this paper, we describe the application of an LC-MS/MS steroid analysis method for the assessment of reference ranges of steroids in human saliva samples (200 µL) collected from older adults (age 50 years and above) enrolled in a European cohort investigating the risk for Alzheimer's dementia. Saliva samples were prepared using supported liquid extraction (SLE) along with a calibration curve and analysed using a Waters I-Class UPLC (Ultra Performance Liquid Chromatography) and a Sciex QTrap 6500+ mass spectrometer. Mass spectrometry parameters of steroids were optimised for each steroid and a method for the chromatographic separation of 19 steroids was developed. Lower limits of quantitation (LLOQs), linearity and other method criteria were assessed. In total, data from 125 participants (500 samples) were analysed and assessed for reference ranges (64 male, 61 female). A total of 19 steroids were detected in saliva within the range of the method. There were clear diurnal patterns in most of the steroid hormones detected. Sex differences were observed for androstenedione (A4), testosterone (T), cortisone (E) and aldosterone (Aldo). In the first sample of the day, dehydroepiandrosterone (DHEA) was significantly higher in healthy volunteers compared to those with Alzheimer's disease biomarkers. This LC-MS/MS method is suitable for the analysis of 19 steroids in saliva in adults.
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Affiliation(s)
- Sarah Gregory
- Edinburgh Dementia Prevention, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh EH4 2XU, UK
| | - Scott G. Denham
- Mass Spectrometry Core, Edinburgh Clinical Research Facility, Queens Medical Research Institute, University of Edinburgh, Edinburgh EH16 4TJ, UK
| | - Patricia Lee
- Mass Spectrometry Core, Edinburgh Clinical Research Facility, Queens Medical Research Institute, University of Edinburgh, Edinburgh EH16 4TJ, UK
| | - Joanna P. Simpson
- Mass Spectrometry Core, Edinburgh Clinical Research Facility, Queens Medical Research Institute, University of Edinburgh, Edinburgh EH16 4TJ, UK
| | - Natalie Z. M. Homer
- Mass Spectrometry Core, Edinburgh Clinical Research Facility, Queens Medical Research Institute, University of Edinburgh, Edinburgh EH16 4TJ, UK
- BHF/Centre for Cardiovascular Sciences, Queen’s Medical Research Institute, University of Edinburgh, Edinburgh, EH16 4TJ, UK
- Correspondence:
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Aldosterone secretion during the day: Salivary aldosterone awakening response and daytime levels. Psychoneuroendocrinology 2022; 139:105685. [PMID: 35202970 DOI: 10.1016/j.psyneuen.2022.105685] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 02/07/2022] [Accepted: 02/07/2022] [Indexed: 11/23/2022]
Abstract
BACKGROUND The mineralocorticoid hormone aldosterone is a key regulator of the sodium-potassium balance and blood pressure. In excess, aldosterone relates to hypertension and cardiovascular disease (CVD). Here, we systematically investigated aldosterone secretion during the day in terms of salivary aldosterone awakening response (AldAR) and salivary aldosterone daytime levels (AldDay) under controlled conditions in participants' natural environment including assessment of potential confounding variables. METHODS In 40 healthy young men, saliva samples for AldAR were collected immediately after awakening and 15, 30, 45, and 60 min thereafter. AldDay levels were measured in 1 h intervals from 9:00-22:00 h. Analyses were complemented by salivary cortisol assessment. Fluid and food intake was standardized and as potential confounders, we assessed awakening time and sleep duration, age, BMI and MAP, as well as chronic stress. RESULTS Awakening was followed by significant increases in salivary aldosterone (p = .004, f= 0.31), returning to baseline levels > 60 min later. Longer sleep duration was associated with lower AldAR (p < .001, f= 0.36). Over the course of the day we observed a continuous decrease of AldDay (p < .001, f= 0.45). Longer sleep duration (p = .097, f= .21), later time of awakening (p < .001, f= .29), and higher chronic stress (p = .041, f= .23) were associated with AldDay characteristics. Circadian aldosterone secretion was positively associated with most cortisol measures. CONCLUSIONS We observed an awakening response in salivary aldosterone and could confirm a decrease in aldosterone levels during the day, comparable to cortisol. Significant confounders were sleep-related variables and chronic stress. Clinical implications of circadian aldosterone secretion with respect to CVD risk remain to be elucidated.
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Gofin Y, Fanous E, Pasternak Y, Prokocimer Z, Zagoory-Sharon O, Feldman R, Codick G, Waisbourd-Zinman O, Fried S, Livni G. Salivary C-reactive protein-a possible predictor of serum levels in pediatric acute respiratory illness. Eur J Pediatr 2021; 180:2465-2472. [PMID: 33822246 DOI: 10.1007/s00431-021-04047-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 03/10/2021] [Accepted: 03/21/2021] [Indexed: 11/26/2022]
Abstract
Identifying the etiology of an acute respiratory infection in children is a well-known challenge. In this study, we evaluated the correlation between salivary C-reactive protein (CRP) and its serum counterpart, which is known to be higher in bacterial infections but necessitates a venipuncture. Salivary and serum CRPs were measured in children with an acute respiratory illness, aged 2 months to 18 years. Pearson's correlation coefficients were used to measure correlation. Discrimination of the salivary CRP levels for predicting serum levels above 100 mg/L was calculated and compared to serum CRP levels. Sensitivity and specificity were similarly calculated. Salivary CRP was measured in 104 samples. Levels correlated significantly and positively with serum CRP levels (r = 0.670, p<0.001). Area under the curve for predicting serum CRP levels of 100 mg/L was 0.848. For a salivary CRP concentration above 32,610 ng/L, the sensitivity and specificity were 69% and 93%, respectively, for accurately predicting a serum CRP level ≥100 mg/L.Conclusions: Salivary CRP can be used in the pediatric acute setting due to its high specificity for predicting elevated serum levels without the need for venipuncture. Further studies are required to achieve higher sensitivity rates. What is known: • Salivary C-reactive protein has shown correlation to its serum counterpart, mainly in healthy children, adults, and ill neonates. What is new: • In a large population of children with acute respiratory illness, aged 2 months to 18 years, salivary C-reactive protein showed high specificity for predicting elevated serum levels, thus indicating its potential as a diagnostic tool.
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Affiliation(s)
- Yoel Gofin
- Schneider Children's Medical Center, 14 Kaplan St., Petah Tikva, Israel.
| | - Eliana Fanous
- Schneider Children's Medical Center, 14 Kaplan St., Petah Tikva, Israel
| | - Yehonatan Pasternak
- Schneider Children's Medical Center, 14 Kaplan St., Petah Tikva, Israel
- Sackler Faculty of Medicine, Tel Aviv University, 35 Klachkin St., Tel Aviv, Israel
| | - Zafnat Prokocimer
- Schneider Children's Medical Center, 14 Kaplan St., Petah Tikva, Israel
| | - Orna Zagoory-Sharon
- Baruch Ivcher School of Psychology, Interdisciplinary Center Herzliya, 8 Ha'universita St., Herzliya, Israel
| | - Ruth Feldman
- Baruch Ivcher School of Psychology, Interdisciplinary Center Herzliya, 8 Ha'universita St., Herzliya, Israel
| | - Gabriel Codick
- Sackler Faculty of Medicine, Tel Aviv University, 35 Klachkin St., Tel Aviv, Israel
- Epidemiology & Database Research Department, Maccabi Healthcare Services, 27 Hamered St., Tel Aviv, Israel
| | - Orith Waisbourd-Zinman
- Schneider Children's Medical Center, 14 Kaplan St., Petah Tikva, Israel
- Sackler Faculty of Medicine, Tel Aviv University, 35 Klachkin St., Tel Aviv, Israel
| | - Sophia Fried
- Schneider Children's Medical Center, 14 Kaplan St., Petah Tikva, Israel
- Sackler Faculty of Medicine, Tel Aviv University, 35 Klachkin St., Tel Aviv, Israel
| | - Gilat Livni
- Schneider Children's Medical Center, 14 Kaplan St., Petah Tikva, Israel
- Sackler Faculty of Medicine, Tel Aviv University, 35 Klachkin St., Tel Aviv, Israel
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Gideon A, Sauter C, Fieres J, Berger T, Renner B, Wirtz PH. Kinetics and Interrelations of the Renin Aldosterone Response to Acute Psychosocial Stress: A Neglected Stress System. J Clin Endocrinol Metab 2020; 105:5618777. [PMID: 31711229 PMCID: PMC7034950 DOI: 10.1210/clinem/dgz190] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Accepted: 11/07/2019] [Indexed: 12/18/2022]
Abstract
CONTEXT The renin-angiotensin-aldosterone system (RAAS) plays an important role in cardiovascular homeostasis and its dysfunction relates to negative health consequences. Acute psychosocial stress seems to activate the RAAS in humans, but stress kinetics and interrelations of RAAS parameters compared with a nonstress control group remain inconclusive. OBJECTIVE We systematically investigated in a randomized placebo-controlled design stress kinetics and interrelations of the reactivity of RAAS parameters measured in plasma and saliva to standardized acute psychosocial stress induction. METHODS 58 healthy young men were assigned to either a stress or a placebo control group. The stress group underwent the Trier Social Stress Test (TSST), while the control group underwent the placebo TSST. We repeatedly assessed plasma renin, and plasma and salivary aldosterone before and up to 3 hours after stress/placebo. We simultaneously assessed salivary cortisol to validate successful stress induction and to test for interrelations. RESULTS Acute psychosocial stress induced significant increases in all endocrine measures compared with placebo-stress (all P ≤ .041). Highest renin levels were observed 1 minute after stress, and highest aldosterone and cortisol levels 10 and 20 minutes after stress, with salivary aldosterone starting earlier at 1 minute after stress. Renin completed recovery at 10 minutes, cortisol at 60 minutes, salivary aldosterone at 90 minutes, and plasma aldosterone at 180 minutes after stress. Stress increase scores of all endocrine measures related to each other, as did renin and cortisol areas under the curve with respect to increase (AUCi) and salivary and plasma aldosterone AUCi (all P ≤ .047). CONCLUSIONS Our findings suggest that in humans acute psychosocial stress induces a differential and interrelated RAAS parameter activation pattern. Potential implications for stress-related cardiovascular risk remain to be elucidated.
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Affiliation(s)
- Angelina Gideon
- Biological Work and Health Psychology, University of Konstanz, Germany
| | - Christine Sauter
- Biological Work and Health Psychology, University of Konstanz, Germany
| | - Judy Fieres
- Biological Work and Health Psychology, University of Konstanz, Germany
| | - Thilo Berger
- Biological Work and Health Psychology, University of Konstanz, Germany
| | - Britta Renner
- Health Psychology, University of Konstanz, Germany
- Centre for the Advanced Study of Collective Behavior, University of Konstanz, Germany
| | - Petra H Wirtz
- Biological Work and Health Psychology, University of Konstanz, Germany
- Centre for the Advanced Study of Collective Behavior, University of Konstanz, Germany
- Correspondence and Reprint Requests: Petra H. Wirtz, PhD, Biological Work and Health Psychology, University of Konstanz Universitaetsstrasse 10, 78457 Konstanz, Germany. E-mail:
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Gerrett N, Amano T, Inoue Y, Havenith G, Kondo N. The effects of exercise and passive heating on the sweat glands ion reabsorption rates. Physiol Rep 2018; 6:e13619. [PMID: 29488360 PMCID: PMC5828933 DOI: 10.14814/phy2.13619] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Accepted: 01/25/2018] [Indexed: 11/24/2022] Open
Abstract
The sweat glands maximum ion reabsorption rates were investigated (n = 12, 21.7 ± 3.0 years, 59.4 ± 9.8 kg, 166.9 ± 10.4 cm and 47.1 ± 7.5 mL/kg/min) during two separate endogenous protocols; cycling at 30% (LEX) and 60% VO2max (MEX) and one exogenous trial; passive heating (PH) (43°C water lower leg immersion) in 27°C, 50%RH. Oesophageal temperature (Tes ), skin temperature (Tsk ), and forearm, chest and lower back sweat rate (SR) and galvanic skin conductance (GSC) were measured. Salivary aldosterone was measured pre-and postheating (n = 3). Using the ∆SR threshold for an increasing ∆GSC to identify maximum sweat ion reabsorption rate revealed higher reabsorption rates during MEX compared to PH (mean of all regions: 0.63 ± 0.28 vs. 0.44 ± 0.3 mg/cm2 /min, P < 0.05). It was not possible to identify the ion reabsorption rate during LEX for some participants. Tes and mean Tsk were different between conditions but mean body temperature (Tb ) and local Tsk (forearm, chest and back) were similar (P > 0.05). Aldosterone increased more during MEX (72.8 ± 36.6 pg/mL) compared to PH (39.2 ± 17.5 pg/mL) and LEX (1.8 ± 9.7 pg/mL). The back had a higher threshold than the forearm (P < 0.05) but it was similar to the chest (P > 0.05) (mean of all conditions; 0.64 ± 0.33, 0.42 ± 0.25, 0.54 ± 0.3 mg/cm2 /min, respectively). Although the differences between conditions may be influenced by thermal or nonthermal mechanism, our results indicate a possibility that the sweat glands maximum ion reabsorption rates may be different between exercise and passive heating without mediating skin regional differences.
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Affiliation(s)
- Nicola Gerrett
- Laboratory for Applied Human PhysiologyGraduate School of Human Development and EnvironmentKobe UniversityKobeJapan
| | - Tatsuro Amano
- Laboratory for Exercise and Environmental PhysiologyFaculty of EducationNiigata UniversityNiigataJapan
| | - Yoshimitsu Inoue
- Laboratory for Human Performance ResearchOsaka International UniversityOsakaJapan
| | - George Havenith
- Environmental Ergonomics Research CentreLoughborough Design SchoolLoughborough UniversityLoughboroughUnited Kingdom
| | - Narihiko Kondo
- Laboratory for Applied Human PhysiologyGraduate School of Human Development and EnvironmentKobe UniversityKobeJapan
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Segeda V, Izakova L, Hlavacova N, Bednarova A, Jezova D. Aldosterone concentrations in saliva reflect the duration and severity of depressive episode in a sex dependent manner. J Psychiatr Res 2017; 91:164-168. [PMID: 28477530 DOI: 10.1016/j.jpsychires.2017.04.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 04/27/2017] [Accepted: 04/28/2017] [Indexed: 01/24/2023]
Abstract
Evidence is accumulating that aldosterone may exert central actions and influence mental functions. The aim of the present study was to test the hypothesis that major depressive disorder affects the diurnal variation of salivary aldosterone and that aldosterone concentrations reflect the duration and severity of the depressive episode in a sex dependent manner. The sample consisted of 60 patients (37 postmenopausal women, 23 men) with major depressive disorder. Patients were examined two times, in acute depressive episode (admission to the hospital) and after reaching clinical remission (discharge). The samples of saliva were taken by the patients themselves twice a day (8.00-9.00 h in the morning and in the evening). Aldosterone concentrations were significantly higher in women compared to men and were significantly higher at the time of admission to the hospital compared to those at the discharge. Morning but not evening salivary aldosterone concentrations reflected the length of the depressive episode in women as well as the severity of the disorder in both sexes. Moreover, the patients with depression failed to exert known daily rhythmicity of aldosterone release. The present study brings several pieces of evidence suggesting the association of aldosterone with the pathophysiology of depression. Salivary aldosterone concentrations appear to reflect the outcome, the duration and the severity of the depressive episode in a sex dependent manner.
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Affiliation(s)
- V Segeda
- Department of Psychiatry, Faculty of Medicine, Comenius University and University Hospital Bratislava, Slovakia
| | - L Izakova
- Department of Psychiatry, Faculty of Medicine, Comenius University and University Hospital Bratislava, Slovakia
| | - N Hlavacova
- Laboratory of Pharmacological Neuroendocrinology, Institute of Experimental Endocrinology, Biomedical Research Center, Slovak Academy of Sciences, Bratislava, Slovakia
| | - A Bednarova
- 2(nd)Department of Psychiatry, Faculty of Medicine, Pavol Jozef Safarik University and University Hospital of L. Pasteur Kosice, Slovakia
| | - D Jezova
- Laboratory of Pharmacological Neuroendocrinology, Institute of Experimental Endocrinology, Biomedical Research Center, Slovak Academy of Sciences, Bratislava, Slovakia.
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Kaczor-Urbanowicz KE, Martin Carreras-Presas C, Aro K, Tu M, Garcia-Godoy F, Wong DT. Saliva diagnostics - Current views and directions. Exp Biol Med (Maywood) 2016; 242:459-472. [PMID: 27903834 DOI: 10.1177/1535370216681550] [Citation(s) in RCA: 226] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
In this review, we provide an update on the current and future applications of saliva for diagnostic purposes. There are many advantages of using saliva as a biofluid. Its collection is fast, easy, inexpensive, and non-invasive. In addition, saliva, as a "mirror of the body," can reflect the physiological and pathological state of the body. Therefore, it serves as a diagnostic and monitoring tool in many fields of science such as medicine, dentistry, and pharmacotherapy. Introduced in 2008, the term "Salivaomics" aimed to highlight the rapid development of knowledge about various "omics" constituents of saliva, including: proteome, transcriptome, micro-RNA, metabolome, and microbiome. In the last few years, researchers have developed new technologies and validated a wide range of salivary biomarkers that will soon make the use of saliva a clinical reality. However, a great need still exists for convenient and accurate point-of-care devices that can serve as a non-invasive diagnostic tool. In addition, there is an urgent need to decipher the scientific rationale and mechanisms that convey systemic diseases to saliva. Another promising technology called liquid biopsy enables detection of circulating tumor cells (CTCs) and fragments of tumor DNA in saliva, thus enabling non-invasive early detection of various cancers. The newly developed technology-electric field-induced release and measurement (EFIRM) provides near perfect detection of actionable mutations in lung cancer patients. These recent advances widened the salivary diagnostic approach from the oral cavity to the whole physiological system, and thus point towards a promising future of salivary diagnostics for personalized individual medicine applications including clinical decisions and post-treatment outcome predictions. Impact statement The purpose of this mini-review is to make an update about the present and future applications of saliva as a diagnostic biofluid in many fields of science such as dentistry, medicine and pharmacotherapy. Using saliva as a fluid for diagnostic purposes would be a huge breakthrough for both patients and healthcare providers since saliva collection is easy, non-invasive and inexpensive. We will go through the current main diagnostic applications of saliva, and provide a highlight on the emerging, newly developing technologies and tools for cancer screening, detection and monitoring.
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Affiliation(s)
| | | | - Katri Aro
- 1 School of Dentistry, Center for Oral/Head & Neck Oncology Research, University of California at Los Angeles, Los Angeles, CA 90095, USA
| | - Michael Tu
- 1 School of Dentistry, Center for Oral/Head & Neck Oncology Research, University of California at Los Angeles, Los Angeles, CA 90095, USA
| | - Franklin Garcia-Godoy
- 3 College of Dentistry, University of Tennessee Health Science Center, Bioscience Research Center, Memphis, TN 38163, USA
| | - David Tw Wong
- 1 School of Dentistry, Center for Oral/Head & Neck Oncology Research, University of California at Los Angeles, Los Angeles, CA 90095, USA
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Fortunato A, Prontera C, Masotti S, Franzini M, Marchetti C, Giovannini S, Zucchelli GC, Emdin M, Passino C, Clerico A. State of the art of aldosterone immunoassays. A multicenter collaborative study on the behalf of the Cardiovascular Biomarkers Study Group of the Italian Section of European Society of Ligand Assay (ELAS) and Società Italiana di Biochimica Clinica (SIBIOC). Clin Chim Acta 2015; 444:106-12. [DOI: 10.1016/j.cca.2015.01.028] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2014] [Revised: 01/14/2015] [Accepted: 01/23/2015] [Indexed: 10/24/2022]
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Daimon M, Konta T, Oizumi T, Kameda W, Susa S, Terui K, Nigawara T, Kageyama K, Ueno Y, Kubota I, Yamashita H, Kayama T, Kato T. Lower aldosterone-renin ratio is a risk factor for total and cancer death in Japanese individuals: the Takahata study. Clin Endocrinol (Oxf) 2015; 82:489-96. [PMID: 25279703 DOI: 10.1111/cen.12615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Revised: 08/12/2014] [Accepted: 09/12/2014] [Indexed: 11/28/2022]
Abstract
OBJECTIVE A higher plasma aldosterone-renin ratio (ARR) is an established marker for screening for primary aldosteronism (PA). The association between higher ARR and mortality in a general population has not been fully explored. We here examined whether higher ARR is a risk factor for total and cause-specific mortality in a Japanese population. SUBJECTS AND METHODS A population-based, longitudinal study of 1,310 Japanese individuals (age: 63·9 ± 9·8 years) enrolled in the Takahata study between 2004 and 2006 and followed for up to 8 years. The incidence and causes of death were monitored annually until 10 January 2012 (median follow-up: 2691 days). RESULTS During the follow-up period, 64 subjects died. Kaplan-Meier analysis showed a significantly increased risk for total and cancer mortality in subjects with lower ARR (log-rank P < 0·001). Cox's proportional hazard model analyses with adjustment for age and gender showed that lower ARR was associated with increased total and cancer mortality in subjects with low (≦72) vs high (>72) ARR (hazard ratios and 95% confidential intervals: 2·56, 1·44-4·56 and 2·78, 1·16-6·65, respectively). CONCLUSIONS Lower ARR was a significant and independent risk factor for increased total and cancer mortality in this Japanese population. Subjects with higher ARR were not-at-risk for total death in general. These findings increase the necessity for identifying people with PA from those with higher ARR. People with higher ARR without PA may be at very low risk for total and cancer death.
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Affiliation(s)
- Makoto Daimon
- Department of Endocrinology, Metabolism and Infectious diseases, Hirosaki University School of Medicine and Hospital, Hirosaki, Japan
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12
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Membrane transporters in salivary exosomes and microvesicles as biomarkers of systemic or oral disease. J Oral Biosci 2014. [DOI: 10.1016/j.job.2014.06.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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13
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Biomarkers of activation of renin-angiotensin-aldosterone system in heart failure: how useful, how feasible? Clin Chim Acta 2014; 443:85-93. [PMID: 25445411 DOI: 10.1016/j.cca.2014.10.031] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Revised: 10/08/2014] [Accepted: 10/21/2014] [Indexed: 11/21/2022]
Abstract
Renin-angiotensin-aldosterone system (RAAS), participated by kidney, liver, vascular endothelium, and adrenal cortex, and counter-regulated by cardiac endocrine function, is a complex endocrine system regulating systemic functions, such as body salt and water homeostasis and vasomotion, in order to allow the accomplishment of physiological tasks, such as orthostasis, physical and emotional stimuli, and to react towards the hemorrhagic insult, in tight conjunction with other neurohormonal axes, namely the sympathetic nervous system, the endothelin and vasopressin systems. The systemic as well as the tissue RAAS are also dedicated to promote tissue remodeling, particularly relevant after damage, when chronic activation may configure as a maladaptive response, leading to fibrosis, hypertrophy and apoptosis, and organ dysfunction. RAAS activation is a fingerprint of systemic arterial hypertension, kidney dysfunction, vascular atherosclerotic disease, and is definitely an hallmark of heart failure, which rapidly shifts from organ disease to a disorder of neurohormonal regulatory systems. Chronic RAAS activation is an indirect or direct target of most effective pharmacological treatments in heart failure, such as beta-blockers, inhibitors of angiotensin converting enzyme, angiotensin receptor blockers, direct renin inhibitors, and mineralocorticoid receptor blockers. Biomarkers of RAAS activation are available, with different feasibility and accuracy, such as plasma renin activity, renin, angiotensin II, and aldosterone, which all accompany the increasing clinical severity of heart failure disease, and are well recognized prognostic factors, even in patients with optimal therapy. Polymorphisms influencing the expression and activity of RAAS pathways have been recognized as clinically relevant biomarkers, likely influencing either the individual clinical phenotype, or the response to drugs. This solid, growing evidence strongly suggests the rationale for the use of biomarkers of the RAAS activation, as a guide to tailor individual therapy in the current practice, and their implementation as a rule-in marker for future trials on novel drugs in the heart failure setting.
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14
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Mirzaii-Dizgah I, Hejazi SF, Riahi E, Salehi MM. Saliva-based creatine kinase MB measurement as a potential point-of-care testing for detection of myocardial infarction. Clin Oral Investig 2011; 16:775-9. [PMID: 21681388 DOI: 10.1007/s00784-011-0578-z] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2011] [Accepted: 06/06/2011] [Indexed: 11/29/2022]
Abstract
Myocardial infarction (MI) is the main cause of death all over the world. Biomarkers of cardiac necrosis are of great importance in the diagnosis of MI. The aim of this study was to determine probable changes of creatine kinase MB isoform (CK-MB) levels in saliva of patients with acute MI. A case-control study was carried out on 30 patients with acute MI who were hospitalized in Kamkar-Arabnia Hospital of Qom City and 30 healthy control subjects. CK-MB levels were measured by immunoinhibition assay in saliva and serum of patients and healthy individuals. Statistical analysis of the Student's t test and Pearson correlation coefficient was used. CK-MB levels showed a significant elevation in saliva and serum of patients with acute MI compared to healthy controls. Furthermore, there was a strong correlation between salivary levels of CK-MB and its serum values. Subsequent to an acute MI, there is a rise in salivary levels of CK-MB just as what occurs in the serum. Moreover, salivary levels of CK-MB reflect well its serum values. It seems that cardiac biomarker CK-MB is measurable in the saliva of patients with acute MI. Salivary CK-MB may serve as an easy-to-use diagnostic tool for point-of-care testing of acute MI.
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Affiliation(s)
- Iraj Mirzaii-Dizgah
- Department of Physiology, School of Medicine, AJA University of Medical Sciences, Tehran, Iran.
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15
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Sun M, Liu C. A novel bead-based fluorescence immunoassay for aldosterone. J Biomed Res 2011; 25:213-9. [PMID: 23554692 PMCID: PMC3597056 DOI: 10.1016/s1674-8301(11)60028-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2010] [Revised: 12/07/2010] [Accepted: 05/02/2011] [Indexed: 11/27/2022] Open
Abstract
Aldosterone quantification helps evaluate the rennin-angiotensin-aldosterone system. The new bead-based multiplex platform has not been applied in aldosterone detection to achieve simultaneous measurements of multiple hormones. A new sensitive competitive bead immunoassay based on Luminex technology for detecting aldosterone in small sample volumes was developed using two-antibody coupled beads and biotinylated aldosterone as tracer in combination with an extraction step. The assay was validated in human and mouse samples and exhibited a linear working range from 10 to 1,000 pg/mL. The assay was reproducible and precise with intra-assay coefficient of variations (CVs) from 6.0% to 11.2%, inter-assay CVs from 8.0% to 13.0% and good recovery [(90-110)%] and linearity [(89-107)%]. Excellent correlation was found between this new assay and the reference method (r = 0.96, P < 0.000,1). The successful establishment of this assay provides high possibility for carrying out bead-based multiplex assay measuring aldosterone and other parameters simultaneously in one 50 µL sample so that the efficiency can be improved and precious samples can be saved.
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Affiliation(s)
- Min Sun
- Department of Endocrinology, the First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu 210029, China
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16
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Sun M, Manolopoulou J, Spyroglou A, Beuschlein F, Hantel C, Wu Z, Bielohuby M, Hoeflich A, Liu C, Bidlingmaier M. A microsphere-based duplex competitive immunoassay for the simultaneous measurements of aldosterone and testosterone in small sample volumes: validation in human and mouse plasma. Steroids 2010; 75:1089-96. [PMID: 20654638 DOI: 10.1016/j.steroids.2010.07.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2009] [Revised: 07/07/2010] [Accepted: 07/09/2010] [Indexed: 11/29/2022]
Abstract
BACKGROUND The small blood volumes available in rodent studies often limit adequate quantification of all hormones of interest. We report here the development of two new assays combining an extraction step with multiplex immunoassay (MIA) technology for the simultaneous determination of aldosterone and testosterone in 50 μl sample volume. METHODS Following solvent extraction, aldosterone and testosterone competitive immunoassays are performed incorporating biotinylated tracers and antibody-coated beads each having a unique fluorescence. Quantification is via addition of streptavidin-R-phycoerythrin (SA-PE). The assays were validated and compared to established methods. Baseline hormone levels in mice from four different strains, and changes after ACTH and HCG stimulation in CD-1 mice are shown. RESULTS The assays are sensitive (aldosterone 15 pg/ml, testosterone 12 pg/ml), reproducible (intra-/inter-assay imprecision aldosterone 5.1-15.6%/9.9-15.8% and testosterone 9.7-10.9%/7.7-11.4%) and correlate significantly to established assays (r=0.94-0.95). Baseline aldosterone levels varied between strains, but not between the genders. Testosterone was significantly higher in male of all strains except in C57BL/6 × NMRI mice. After ACTH injection, aldosterone (median, interquartile range) rose from 354 (261-396) pg/ml to 2008 (875-2467) in male and from 260 (210-576) to 1120 (734-1528) in female CD-1 mice. HCG injection in the same strain increased testosterone in male mice only (3.5 (0.4-8.3) ng/ml to 31.8 (30.4-33.9) ng/ml, P<0.01). CONCLUSIONS We describe a MIA for the simultaneous measurement of aldosterone and testosterone in small volumes after extraction. In addition to presenting a new tool for steroid research in rodent models, our data show strain-dependent differences in steroid hormone metabolism in rodents.
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Affiliation(s)
- Min Sun
- Department of Endocrinology, First Affiliated Hospital with Nanjing Medical University, Nanjing, China
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