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Dosedělová V, Laštovičková M, Konečný Š, Dolina J, Kubáň P. Optimization of saliva sampling methods for analysis of bile acids by UHPLC-MS. J Chromatogr A 2024; 1736:465354. [PMID: 39276415 DOI: 10.1016/j.chroma.2024.465354] [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: 07/02/2024] [Revised: 09/04/2024] [Accepted: 09/06/2024] [Indexed: 09/17/2024]
Abstract
This study investigated methods for sampling bile acids in saliva, a potential non-invasive diagnostic biofluid. Bile acids have been implicated in causing damage and permanent changes to the esophageal mucosa and increasing the risk of developing Barrett's esophagus, a condition that can potentially progress to esophageal cancer. Three saliva collection methods were compared: spitting, Salivette® swabs, and Salivette Cortisol® swabs. Spitting emerged as the superior method with the highest recoveries and the least interference, likely due to Salivette swabs retaining bile acids or introducing unknown interferences. All saliva samples were analyzed by UHPLC-MS/MS using the Zorbax RRHD Eclipse Plus C18 column (3 × 50 mm, 1.8 µm) in gradient elution of 0.1 % formic acid in water and methanol. Saliva sample stability was assessed over 14 days, reflecting typical storage times. The levels of detected bile acids were stable for the measured period (RSD ≤ 22 %) and no degradation was observed. Bile acid levels in saliva fluctuated throughout the day, with the greatest changes observed for glycine-conjugated bile acids after meals. To minimize sampling variability, saliva collection by spitting after overnight fasting is recommended for future studies. Our findings are applicable for standardized bile acid sampling and are currently applied in a large clinical study evaluating bile acids as potential susceptibility markers for Barrett's esophagus diagnostics.
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Affiliation(s)
- Věra Dosedělová
- Department of Bioanalytical Instrumentation, Institute of Analytical Chemistry of the Czech Academy of Sciences, Veveří 967/97, 60200, Brno, Czech Republic
| | - Markéta Laštovičková
- Department of Environmental Analytical Chemistry, Institute of Analytical Chemistry of the Czech Academy of Sciences, Veveří 967/97, 60200, Brno, Czech Republic
| | - Štefan Konečný
- Internal Gastroenterology Department, University Hospital Brno and Faculty of Medicine, Masaryk University, Jihlavská 20, 625 00, Brno, Czech Republic
| | - Jiří Dolina
- Internal Gastroenterology Department, University Hospital Brno and Faculty of Medicine, Masaryk University, Jihlavská 20, 625 00, Brno, Czech Republic
| | - Petr Kubáň
- Department of Bioanalytical Instrumentation, Institute of Analytical Chemistry of the Czech Academy of Sciences, Veveří 967/97, 60200, Brno, Czech Republic.
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He M, Huoshen W, Li X, Sun C. Salivary and serum biomarkers to evaluate psychological disorders in burning mouth syndrome: A systematic review and meta-analysis. J Oral Pathol Med 2024; 53:182-192. [PMID: 38438274 DOI: 10.1111/jop.13526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 01/26/2024] [Accepted: 02/16/2024] [Indexed: 03/06/2024]
Abstract
BACKGROUND Burning mouth syndrome is a chronic pain syndrome mainly characterized by an intensive burning sensation of tongue. Previous studies have suggested that saliva/serum biomarkers in burning mouth syndrome might be associated with psychological disorders. The aim of systematic review was to observe whether the biomarkers in serum/saliva could be an alternative method to evaluate the psychological disorders in patients with burning mouth syndrome. MATERIALS AND METHODS The PubMed, Embase, and Cochrane Library databases were searched for papers published up to March 15, 2023. Risk of bias was measured by using the Newcastle-Ottawa Scale. RevMan was used for meta-analysis. RESULTS A total of 467 articles were screened, which of 12 studies were included. These studies collected 43 different biomarkers in saliva and 35 in serum. Of these biomarkers, only three (cortisol, α-amylase, and IL-6) were analyzed in two or more studies. Only salivary cortisol levels were significantly higher in the patient group compared to the controls (Mean Difference = 1.39; 95% CI [0.80-1.97]; p < 0.001). Moreover, cortisol might be relevant to psychological scores, especially anxiety. CONCLUSION Different papers have investigated salivary and serum biomarkers in burning mouth syndrome patients with controversial results. This meta-analysis showed that cortisol levels in saliva may be a potential biomarker to assess the psychological disorders in burning mouth syndrome patients.
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Affiliation(s)
- Mei He
- Department of Stomatology, Shenzhen Longhua District Central Hospital, Shenzhen, China
| | - Wuda Huoshen
- Department of Periodontics and Oral Mucosal Diseases, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, China
| | - Xueqing Li
- Department of Periodontics and Oral Mucosal Diseases, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, China
| | - Chen Sun
- Department of Periodontics and Oral Mucosal Diseases, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, China
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Ortín-Bustillo A, Botía M, López-Arjona M, Pardo-Marín L, Cerón JJ, Martínez-Subiela S, López-Martínez MJ, Tvarijonaviciute A, Muñoz-Prieto A, Rubio CP, Martínez-Miró S, Escribano D, Tecles F. Saliva Sampling Material Matters: Effects on the Results of Saliva Analysis in Pigs. Animals (Basel) 2023; 13:3757. [PMID: 38136795 PMCID: PMC10741101 DOI: 10.3390/ani13243757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/19/2023] [Accepted: 12/01/2023] [Indexed: 12/24/2023] Open
Abstract
The use of saliva as a biological sample from pigs is of high practical interest because blood collection from pigs is difficult and stressful. In this study, the influence of two different materials, a cotton roll and a polypropylene sponge, in porcine saliva collection was evaluated. For this purpose, the effect of the material used for sampling was evaluated in a panel of 13 analytes, including those related to stress (cortisol and oxytocin), inflammation and immunity (adenosine deaminase, haptoglobin and myeloperoxidase), redox homeostasis (the cupric reducing ability of saliva, the ferric reducing activity of saliva, and the Trolox equivalent antioxidant capacity), and sepsis (procalcitonin), as well as other routine analytes related to metabolism and different tissues and organs, such as lactate dehydrogenase, creatine kinase, urea, and total protein concentration. The polypropylene sponge provided a higher sample volume than the cotton roll. Although the results of some salivary analytes were equivalent for both materials, other analytes, such as creatine kinase, haptoglobin and total proteins, showed significant differences depending on the material used for saliva collection. Therefore, the type of material used for salivary collection in pigs should be considered when interpreting the results of analyses of the salivary analytes.
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Affiliation(s)
- Alba Ortín-Bustillo
- Interdisciplinary Laboratory of Clinical Analysis of the University of Murcia (Interlab-UMU), Regional Campus of International Excellence ‘Campus Mare Nostrum’, University of Murcia, Campus de Espinardo s/n, 30100 Murcia, Spain; (A.O.-B.); (M.B.); (L.P.-M.); (J.J.C.); (S.M.-S.); (M.J.L.-M.); (A.T.); (A.M.-P.); (C.P.R.); (F.T.)
| | - María Botía
- Interdisciplinary Laboratory of Clinical Analysis of the University of Murcia (Interlab-UMU), Regional Campus of International Excellence ‘Campus Mare Nostrum’, University of Murcia, Campus de Espinardo s/n, 30100 Murcia, Spain; (A.O.-B.); (M.B.); (L.P.-M.); (J.J.C.); (S.M.-S.); (M.J.L.-M.); (A.T.); (A.M.-P.); (C.P.R.); (F.T.)
| | - Marina López-Arjona
- Department of Animal and Food Science, School of Veterinary Science, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain;
| | - Luis Pardo-Marín
- Interdisciplinary Laboratory of Clinical Analysis of the University of Murcia (Interlab-UMU), Regional Campus of International Excellence ‘Campus Mare Nostrum’, University of Murcia, Campus de Espinardo s/n, 30100 Murcia, Spain; (A.O.-B.); (M.B.); (L.P.-M.); (J.J.C.); (S.M.-S.); (M.J.L.-M.); (A.T.); (A.M.-P.); (C.P.R.); (F.T.)
| | - José J. Cerón
- Interdisciplinary Laboratory of Clinical Analysis of the University of Murcia (Interlab-UMU), Regional Campus of International Excellence ‘Campus Mare Nostrum’, University of Murcia, Campus de Espinardo s/n, 30100 Murcia, Spain; (A.O.-B.); (M.B.); (L.P.-M.); (J.J.C.); (S.M.-S.); (M.J.L.-M.); (A.T.); (A.M.-P.); (C.P.R.); (F.T.)
| | - Silvia Martínez-Subiela
- Interdisciplinary Laboratory of Clinical Analysis of the University of Murcia (Interlab-UMU), Regional Campus of International Excellence ‘Campus Mare Nostrum’, University of Murcia, Campus de Espinardo s/n, 30100 Murcia, Spain; (A.O.-B.); (M.B.); (L.P.-M.); (J.J.C.); (S.M.-S.); (M.J.L.-M.); (A.T.); (A.M.-P.); (C.P.R.); (F.T.)
| | - María José López-Martínez
- Interdisciplinary Laboratory of Clinical Analysis of the University of Murcia (Interlab-UMU), Regional Campus of International Excellence ‘Campus Mare Nostrum’, University of Murcia, Campus de Espinardo s/n, 30100 Murcia, Spain; (A.O.-B.); (M.B.); (L.P.-M.); (J.J.C.); (S.M.-S.); (M.J.L.-M.); (A.T.); (A.M.-P.); (C.P.R.); (F.T.)
| | - Asta Tvarijonaviciute
- Interdisciplinary Laboratory of Clinical Analysis of the University of Murcia (Interlab-UMU), Regional Campus of International Excellence ‘Campus Mare Nostrum’, University of Murcia, Campus de Espinardo s/n, 30100 Murcia, Spain; (A.O.-B.); (M.B.); (L.P.-M.); (J.J.C.); (S.M.-S.); (M.J.L.-M.); (A.T.); (A.M.-P.); (C.P.R.); (F.T.)
| | - Alberto Muñoz-Prieto
- Interdisciplinary Laboratory of Clinical Analysis of the University of Murcia (Interlab-UMU), Regional Campus of International Excellence ‘Campus Mare Nostrum’, University of Murcia, Campus de Espinardo s/n, 30100 Murcia, Spain; (A.O.-B.); (M.B.); (L.P.-M.); (J.J.C.); (S.M.-S.); (M.J.L.-M.); (A.T.); (A.M.-P.); (C.P.R.); (F.T.)
| | - Camila P. Rubio
- Interdisciplinary Laboratory of Clinical Analysis of the University of Murcia (Interlab-UMU), Regional Campus of International Excellence ‘Campus Mare Nostrum’, University of Murcia, Campus de Espinardo s/n, 30100 Murcia, Spain; (A.O.-B.); (M.B.); (L.P.-M.); (J.J.C.); (S.M.-S.); (M.J.L.-M.); (A.T.); (A.M.-P.); (C.P.R.); (F.T.)
| | - Silvia Martínez-Miró
- Department of Animal Production, Regional Campus of International Excellence ‘Campus Mare Nostrum’, University of Murcia, Campus de Espinardo s/n, 30100 Murcia, Spain;
| | - Damián Escribano
- Interdisciplinary Laboratory of Clinical Analysis of the University of Murcia (Interlab-UMU), Regional Campus of International Excellence ‘Campus Mare Nostrum’, University of Murcia, Campus de Espinardo s/n, 30100 Murcia, Spain; (A.O.-B.); (M.B.); (L.P.-M.); (J.J.C.); (S.M.-S.); (M.J.L.-M.); (A.T.); (A.M.-P.); (C.P.R.); (F.T.)
- Department of Animal Production, Regional Campus of International Excellence ‘Campus Mare Nostrum’, University of Murcia, Campus de Espinardo s/n, 30100 Murcia, Spain;
| | - Fernando Tecles
- Interdisciplinary Laboratory of Clinical Analysis of the University of Murcia (Interlab-UMU), Regional Campus of International Excellence ‘Campus Mare Nostrum’, University of Murcia, Campus de Espinardo s/n, 30100 Murcia, Spain; (A.O.-B.); (M.B.); (L.P.-M.); (J.J.C.); (S.M.-S.); (M.J.L.-M.); (A.T.); (A.M.-P.); (C.P.R.); (F.T.)
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Tsunekawa K, Shoho Y, Ushiki K, Yanagawa Y, Matsumoto R, Shimoda N, Aoki T, Yoshida A, Nakajima K, Kimura T, Murakami M. Assessment of exercise-induced stress via automated measurement of salivary cortisol concentrations and the testosterone-to-cortisol ratio: a preliminary study. Sci Rep 2023; 13:14532. [PMID: 37666925 PMCID: PMC10477232 DOI: 10.1038/s41598-023-41620-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 08/29/2023] [Indexed: 09/06/2023] Open
Abstract
In this study, our aim was to validate whether the automated measurement of salivary testosterone and cortisol concentrations and the testosterone-to-cortisol (T/C) ratio, considering their individual circadian rhythms can be used to assess the stress response of male athletes to different exercise intensities accurately and effectively. We measured the salivary testosterone and cortisol concentrations and their respective serum concentrations that were collected from 20 male long-distance runners via passive drooling in the morning and evening for two consecutive days involving different exercise intensities. An electrochemiluminescence immunoassay was performed to evaluate the salivary testosterone and cortisol concentrations. The results showed a positive correlation between the salivary testosterone and cortisol concentrations and their respective serum concentrations. The participants were divided into two groups: with and without interval training. The interval training group showed a significantly higher rate of change in the salivary cortisol concentration and a significantly lower rate of change in the T/C ratio in the evening interval training on day 1 than lower-intensity running on day 2. Our results indicated that the salivary cortisol concentrations and the T/C ratio could distinguish between exercises at different intensities, which may be beneficial for detecting differences in stress responses among athletes.
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Affiliation(s)
- Katsuhiko Tsunekawa
- Department of Clinical Laboratory Medicine, Gunma University Graduate School of Medicine, 3-39-22 Showa-machi, Maebashi, Gunma, 371-8511, Japan.
| | - Yoshifumi Shoho
- Faculty of Education, Ikuei University, 1656-1 Kyome-machi, Takasaki, Gunma, 370-0011, Japan
| | - Kazumi Ushiki
- Department of Clinical Laboratory Medicine, Gunma University Graduate School of Medicine, 3-39-22 Showa-machi, Maebashi, Gunma, 371-8511, Japan
| | - Yoshimaro Yanagawa
- Faculty of Education, Ikuei University, 1656-1 Kyome-machi, Takasaki, Gunma, 370-0011, Japan
| | - Ryutaro Matsumoto
- Faculty of Education, Ikuei University, 1656-1 Kyome-machi, Takasaki, Gunma, 370-0011, Japan
| | - Nozomi Shimoda
- Department of Clinical Laboratory Medicine, Gunma University Graduate School of Medicine, 3-39-22 Showa-machi, Maebashi, Gunma, 371-8511, Japan
| | - Tomoyuki Aoki
- Department of Clinical Laboratory Medicine, Gunma University Graduate School of Medicine, 3-39-22 Showa-machi, Maebashi, Gunma, 371-8511, Japan
| | - Akihiro Yoshida
- Department of Clinical Laboratory Medicine, Gunma University Graduate School of Medicine, 3-39-22 Showa-machi, Maebashi, Gunma, 371-8511, Japan
| | - Kiyomi Nakajima
- Department of Clinical Laboratory Medicine, Gunma University Graduate School of Medicine, 3-39-22 Showa-machi, Maebashi, Gunma, 371-8511, Japan
| | - Takao Kimura
- Department of Clinical Laboratory Medicine, Gunma University Graduate School of Medicine, 3-39-22 Showa-machi, Maebashi, Gunma, 371-8511, Japan
| | - Masami Murakami
- Department of Clinical Laboratory Medicine, Gunma University Graduate School of Medicine, 3-39-22 Showa-machi, Maebashi, Gunma, 371-8511, Japan
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Huang T, Howse FM, Stachenfeld NS, Usselman CW. Correlations between salivary- and blood-derived gonadal hormone assessments and implications for inclusion of female participants in research studies. Am J Physiol Heart Circ Physiol 2023; 324:H33-H46. [PMID: 36426884 DOI: 10.1152/ajpheart.00399.2022] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Even in the 21st century, female participants continue to be underrepresented in human physiology research. This underrepresentation is attributable in part to the perception that the inclusion of females is more time consuming, less convenient, and more expensive relative to males because of the need to account for the menstrual cycle in cardiovascular study designs. Accounting for menstrual cycle-induced fluctuations in gonadal hormones is important, given established roles in governing vascular function and evidence that failure to consider gonadal hormone fluctuations can result in misinterpretations of biomarkers of cardiovascular disease. Thus, for cardiovascular researchers, the inclusion of females in research studies implies a necessity to predict, quantify, and/or track indexes of menstrual cycle-induced changes in hormones. It is here that methodologies are lacking. Gold standard measurement requires venous blood samples, but this technique is invasive and can become both expensive and technically preclusive when serial measurements are required. To this end, saliva-derived measures of gonadal hormones provide a means of simple, noninvasive hormone tracking. To investigate the feasibility of this technique as a means of facilitating research designs that take the menstrual cycle into account, the purpose of this review was to examine literature comparing salivary and blood concentrations of the primary gonadal hormones that fluctuate across the menstrual cycle: estradiol and progesterone. The data indicate that there appear to be valid and promising applications of salivary gonadal hormone monitoring, which may aid in the inclusion of female participants in cardiovascular research studies.
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Affiliation(s)
- Tingyu Huang
- Cardiovascular Health and Autonomic Regulation Laboratory, Department of Kinesiology and Physical Education, McGill University, Montreal, Quebec, Canada
| | - Fiona M Howse
- Cardiovascular Health and Autonomic Regulation Laboratory, Department of Kinesiology and Physical Education, McGill University, Montreal, Quebec, Canada
| | - Nina S Stachenfeld
- The John B. Pierce Laboratory, New Haven, Connecticut.,Yale School of Medicine, New Haven, Connecticut
| | - Charlotte W Usselman
- Cardiovascular Health and Autonomic Regulation Laboratory, Department of Kinesiology and Physical Education, McGill University, Montreal, Quebec, Canada.,McGill Research Centre for Physical Activity and Health, McGill University, Montreal, Quebec, Canada
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Dmitrieva EV, Temerdashev AZ. Determination of Steroid Hormones in Human Saliva by High-Performance Liquid Chromatography with Tandem Mass Spectrometry Detection. JOURNAL OF ANALYTICAL CHEMISTRY 2022. [DOI: 10.1134/s1061934822120024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Sociodemographic and Biological Factors of Health Disparities of Mothers and Their Very Low Birth-Weight Infants. Adv Neonatal Care 2022; 22:E169-E181. [PMID: 35588063 PMCID: PMC9422772 DOI: 10.1097/anc.0000000000000997] [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] [Indexed: 02/04/2023]
Abstract
BACKGROUND Black mothers and their very low birth-weight infants in the United States have increased risk of adverse neonatal and maternal health outcomes compared with White mothers and infants. Disparities in adverse birth outcomes associated with sociodemographic factors are difficult to quantify and modify, limiting their usefulness in assessing intervention effects. PURPOSE To test hypotheses that (1) the biological factors of maternal testosterone and cortisol are associated with sociodemographic factors and (2) both factors are associated with neonatal health and maternal mental health and healthy behaviors between birth and 40 weeks' gestational age. METHODS We used a descriptive, longitudinal design. Eighty-eight mothers and very low birth-weight neonates were recruited from a tertiary medical center in the United States. Data on sociodemographic factors and neonatal health were collected from medical records. Maternal mental health and healthy behaviors were collected with questionnaires. Maternal salivary testosterone and cortisol levels were measured using enzyme immunoassays. Data were analyzed primarily using general linear and mixed models. RESULTS High testosterone and/or low cortisol levels were associated with younger age, less education, enrollment in a federal assistance program, being unmarried, being Black, poorer neonatal health, and delayed physical growth. Low cortisol level was related to higher levels of depressive symptoms. Black mothers had fewer healthy behaviors than White mothers. IMPLICATIONS FOR PRACTICE AND RESEARCH Findings confirm that biological factors are associated with sociodemographic factors, and both are associated with neonatal health and maternal mental health and healthy behaviors. We propose using sociodemographic and biological factors concurrently to identify risk and develop and evaluate ante- and postpartum interventions.Video abstract available athttps://journals.na.lww.com/advancesinneonatalcare/Pages/videogallery.aspx?autoPlay=false&videoId=59.
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The Effect of Dental Treatments in Caries Management on Stress and Salivary Protein Levels. J Clin Med 2022; 11:jcm11154350. [PMID: 35893440 PMCID: PMC9332813 DOI: 10.3390/jcm11154350] [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: 07/01/2022] [Revised: 07/18/2022] [Accepted: 07/22/2022] [Indexed: 02/01/2023] Open
Abstract
A great burden is put on healthcare systems by dental caries and understanding patients’ treatment needs is of utmost importance. The aim of this pre−post study was to assess dental anxiety and the psychological stress induced by two different types of dental treatment (prophylaxis and cavity preparation), by combining psychometric evaluations with salivary biomarkers, in a group of 28 schoolchildren presenting in a university clinic. Pre- and post-treatment unstimulated whole saliva was collected and levels of cortisol, alpha-amylase (sAA) and total protein content were measured. The State−Trait Anxiety Inventory for Children and the Frankl Behaviour Rating Scale (FBRS) were applied. Statistical analysis was performed using the Stata/IC 16 (StataCorp) programme. All salivary parameters showed strong positive correlations between pre- and post-treatment levels. Post-treatment, salivary cortisol decreased (p = 0.008, paired t-test), sAA did not change significantly (p = 0.572, sign test), while the sAA/cortisol ratio (AOC) increased (p = 0.036, sign test). There were no correlations between state and trait anxiety levels. State anxiety scores registered significantly higher values for children with an FBRS score of 3 compared with a score of 4 (p < 0.001, unpaired t-test). The post-treatment decrease in the salivary cortisol level was higher for prophylaxis compared with the cavity preparation group (p = 0.024, t-test). These results demonstrate that sAA and cortisol levels are altered differently by psychological stress induced by two different types of dental treatment.
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The Influence of Periodontal Diseases and the Stimulation of Saliva Secretion on the Course of the Acute Phase of Ischemic Stroke. J Clin Med 2022; 11:jcm11154321. [PMID: 35893412 PMCID: PMC9329893 DOI: 10.3390/jcm11154321] [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: 06/20/2022] [Revised: 07/14/2022] [Accepted: 07/23/2022] [Indexed: 12/04/2022] Open
Abstract
Background and purpose: The course of an ischemic stroke depends on many factors. The influence of periodontal diseases and the stimulation of salivation on the course and severity of stroke remains unresolved. Therefore, the aim of the study was to analyze the severity of ischemic stroke depending on the occurrence of periodontal diseases and saliva stimulation. Methods: The severity of the neurological condition was assessed using the NIHSS scale on days one, three and seven of stroke. The incidence of periodontal diseases was classified using the Hall’s scale in the first day of stroke. On days one and seven of stroke, the concentration of IL-1β, MMP-8, OPG and RANKL in the patients’ saliva was assessed using the Elisa technique. At the same time, the level of CRP and the number of leukocytes in the peripheral blood were tested on days one, three and seven of the stroke, and the incidence of upper respiratory and urinary tract infections was assessed. Results:100 consecutive patients with their first ever ischemic stroke were enrolled in the study. 56 randomly selected patients were subjected to the stimulation of salivation, the remaining patients were not stimulated. In the study of the severity of the neurological condition using the NIHS scale on days three and seven of stroke, the degree of deficit in patients without periodontal disease significantly improved compared to patients with periodontal disease, respectively (p < 0.01 and p = 0.01). Patients from the stimulated group had more severe neurological deficit at baseline (p = 0.04). On days three and seven of neurological follow-up, the condition of patients from both groups improved with a further distinct advantage of the unstimulated group over the stimulated group, respectively (p = 0.03 and p < 0.001). In patients from both groups, a statistically significant decrease in CRP and lymphocyte levels was observed on day seven in relation to day one. Conclusions: The occurrence of periodontal disease in a patient with stroke affects the severity of stroke. Stimulation of the mouth and salivary glands in these patients may have a positive effect on the course of stroke, taking into account the dynamics of neurological symptoms.
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Adriaansen BPH, Kamphuis JS, Schröder MAM, Olthaar AJ, Bock C, Brandt A, Stikkelbroeck NMML, Lentjes EGWM, Span PN, Sweep FCGJ, Claahsen‐van der Grinten HL, van Herwaarden AE. Diurnal salivary androstenedione and 17-hydroxyprogesterone levels in healthy volunteers for monitoring treatment efficacy of patients with congenital adrenal hyperplasia. Clin Endocrinol (Oxf) 2022; 97:36-42. [PMID: 35150157 PMCID: PMC9542109 DOI: 10.1111/cen.14690] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 12/13/2021] [Accepted: 12/19/2021] [Indexed: 11/29/2022]
Abstract
OBJECTIVE Treatment of congenital adrenal hyperplasia (CAH) patients with glucocorticoids is often challenging since there is a delicate balance between over- and undertreatment. Treatment can be monitored noninvasively by measuring salivary androstenedione (A4) and 17-hydroxyprogesterone (17-OHP). Optimal treatment monitoring requires the establishment of reference values in saliva. DESIGN A descriptive study. PATIENTS For this study saliva of 255 healthy paediatric and adult volunteers with an age range of 4-75 years old was used. MEASUREMENTS We developed a sensitive liquid chromatography-tandem mass spectrometry method, assessed salivary A4 and 17-OHP stability, and measured A4 and 17-OHP concentrations in saliva collected in the morning, afternoon, and evening. RESULTS We quantified A4 and 17-OHP concentrations in the morning, afternoon, and evening and demonstrated that there is a significant rhythm with the highest levels in the morning and decreasing levels over the day. A4 and 17-OHP concentrations display an age-dependent pattern. These steroids remain stable in saliva at ambient temperature for up to 5 days. CONCLUSIONS Good stability of the steroids in saliva enables saliva collection by the patient at home. Since salivary A4 and 17-OHP display a diurnal rhythm and age-dependent pattern, we established reference values for both children and adults at three time points during the day. These reference values support treatment monitoring of children and adults with CAH.
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Affiliation(s)
- Bas P. H. Adriaansen
- Department of Laboratory Medicine, Radboud Institute of Health SciencesRadboud University Medical CentreNijmegenThe Netherlands
- Department of Paediatric Endocrinology, Amalia Children's HospitalRadboud University Medical CentreNijmegenThe Netherlands
| | - Johannes S. Kamphuis
- Department of Clinical Chemistry and HaematologyGelre HospitalsApeldoornThe Netherlands
| | - Mariska A. M. Schröder
- Department of Paediatric Endocrinology, Amalia Children's HospitalRadboud University Medical CentreNijmegenThe Netherlands
- Department of Laboratory Medicine, Radboud Institute of Molecular Life SciencesRadboud University Medical CentreNijmegenThe Netherlands
| | - André J. Olthaar
- Department of Laboratory Medicine, Radboud Institute of Health SciencesRadboud University Medical CentreNijmegenThe Netherlands
| | - Carina Bock
- Department of Laboratory Medicine, Radboud Institute of Health SciencesRadboud University Medical CentreNijmegenThe Netherlands
| | - André Brandt
- Department of Laboratory Medicine, Radboud Institute of Health SciencesRadboud University Medical CentreNijmegenThe Netherlands
| | | | - Eef G. W. M. Lentjes
- Central Diagnostic LaboratoryUniversity Medical Centre UtrechtUtrechtThe Netherlands
| | - Paul N. Span
- Department of Radiation OncologyRadboud University Medical CentreNijmegenThe Netherlands
| | - Fred C. G. J. Sweep
- Department of Laboratory Medicine, Radboud Institute of Health SciencesRadboud University Medical CentreNijmegenThe Netherlands
| | | | - Antonius E. van Herwaarden
- Department of Laboratory Medicine, Radboud Institute of Health SciencesRadboud University Medical CentreNijmegenThe Netherlands
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Yoon JH, Kim DW, Lee SK, Kim SG. Effects of 4-hexylresorcinol administration on the submandibular glands in a growing rat model. Head Face Med 2022; 18:16. [PMID: 35668488 PMCID: PMC9172157 DOI: 10.1186/s13005-022-00320-7] [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: 02/14/2022] [Accepted: 05/17/2022] [Indexed: 11/30/2022] Open
Abstract
Background 4-Hexylresorcinol (4HR) is a food additive and class I histone deacetylase inhibitor. In this study, we examined the effects of 4HR administration on the submandibular gland in a growing rat model. Methods Four-week-old rats were used in this study. The experimental group (nine males and eight females) received 12.8 mg/kg of 4HR weekly for 12 weeks. Ten rats (five males and five females) were used as controls. The submandibular glands of rats were collected 12 weeks after the first administration of 4HR. The weight of the glands was measured. Histological analysis, immunoprecipitation-high-performance liquid chromatography (IP-HPLC), and western blotting were performed. Results The weights of the rat submandibular glands were higher in the experimental groups than in the control group, especially in male rats (P < 0.05). The vascular endothelial growth factor (VEGF) and testosterone in the submandibular glands were more highly expressed in 4HR-treated male rats than in untreated rats, as detected by both western blotting and immunohistochemistry. The IP-HPLC results demonstrated that the expression levels of Ki67, epidermal growth factor, and testosterone in the submandibular glands were higher in 4HR-treated male rats than in untreated rats. Conclusions This study demonstrated that the systemic administration of 4HR increased the weight of submandibular glands in male rats. In addition, the testosterone and VEGF expression levels in the submandibular glands increased owing to 4HR administration.
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Affiliation(s)
- Joo-Hyung Yoon
- Department of Oral and Maxillofacial Surgery, College of Dentistry, Gangneung-Wonju National University, Jukheon gil 7, 25457, Gangneung, Gangwondo, Republic of Korea
| | - Dae-Won Kim
- Department of Oral Biochemistry, College of Dentistry, Gangneung-Wonju National University, 28644, Gangneung, Korea
| | - Suk Keun Lee
- Institution of Hydrogen Magnetic Reaction Gene Regulation, 34140, Daejeon, Korea
| | - Seong-Gon Kim
- Department of Oral and Maxillofacial Surgery, College of Dentistry, Gangneung-Wonju National University, Jukheon gil 7, 25457, Gangneung, Gangwondo, Republic of Korea.
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12
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Lu H, Zou P, Zhang Y, Zhang Q, Chen Z, Chen F. The sampling strategy of oral microbiome. IMETA 2022; 1:e23. [PMID: 38868567 PMCID: PMC10989882 DOI: 10.1002/imt2.23] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 04/01/2022] [Accepted: 04/15/2022] [Indexed: 06/14/2024]
Abstract
There are multiple habitats in the oral cavity with bacteria, fungi, viruses, and protozoa residing in, which together constitute the oral micro-ecosystem. These microflorae in the oral cavity primarily include saliva, supragingival dental plaque, subgingival dental plaque, submucosal plaque around implants, plaque in root canals, and plaque on the mucosal surface. The interest and knowledge of the microbiome have dynamically increased with the advancement of technology. Therefore, a reliable, feasible, and practical sampling strategy for the oral microbiome is required for the investigation. This paper introduced the sampling strategy of oral microorganisms, consisting of sample collection, transport, processing, and storage. The materials and devices involved in this study are all commonly used in clinical practice or laboratory. The feasibility and reliability of the sampling methods described in this paper have been verified by multiple studies.
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Affiliation(s)
- Hongye Lu
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang ProvinceCancer Center of Zhejiang UniversityHangzhouChina
- Department of Periodontology, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital StomatologyPeking University School and Hospital of StomatologyBeijingChina
| | - Peihui Zou
- Department of Periodontology, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital StomatologyPeking University School and Hospital of StomatologyBeijingChina
| | - Yifei Zhang
- Central Laboratory, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital StomatologyBeijingChina
| | - Qian Zhang
- Central Laboratory, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital StomatologyBeijingChina
| | - Zhibin Chen
- Department of Periodontology, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital StomatologyPeking University School and Hospital of StomatologyBeijingChina
| | - Feng Chen
- Central Laboratory, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital StomatologyBeijingChina
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13
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Zhu C, Yuan C, Ren Q, Wei F, Yu S, Sun X, Zheng S. Comparative analysis of the effects of collection methods on salivary steroids. BMC Oral Health 2021; 21:352. [PMID: 34271881 PMCID: PMC8285872 DOI: 10.1186/s12903-021-01722-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 07/07/2021] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND Steroid hormone test for saliva was a promising area of research, however the impact of different collection methods on salivary steroids was underexplored so far. This study was designed to compare the effects of different collection methods (unstimulated or stimulated by chewing paraffin, forepart or midstream) on salivary flow rate, concentrations and secretion rates of steroids in saliva. METHODS Whole-saliva samples were collected from 10 systemically and orally healthy participants, whose forepart and midstream segments of saliva were collected under unstimulated and stimulated conditions, with the salivary flow rate of each sample recorded. The concentrations and secretion rates of salivary steroids including testosterone, dehydroepiandrosterone (DHEA) and progesterone were measured by ELISA, with the multiple of change calculated. RESULTS The results indicated mechanical stimulation used in collection of saliva samples could affect concentrations and secretion rates of steroids, whereas forepart and midstream segments had little differences in levels of salivary steroids, which effects could be partly influenced by individual specificity. The asynchronism in change of secretion rate of steroids with that of salivary flow rate might play an important role during this course. CONCLUSION Based on these findings, we suggested to use the same collection method throughout one analytical study on salivary steroids or in longitudinal observations to ensure the comparability of the saliva samples collected.
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Affiliation(s)
- Ce Zhu
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, 100081, People's Republic of China.,Department of Preventive Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Dentistry, Shanghai, 200011, People's Republic of China
| | - Chao Yuan
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, 100081, People's Republic of China
| | - Qidi Ren
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, 100081, People's Republic of China
| | - Fangqiao Wei
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, 100081, People's Republic of China
| | - Shunlan Yu
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, 100081, People's Republic of China
| | - Xiangyu Sun
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, 100081, People's Republic of China.
| | - Shuguo Zheng
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, 100081, People's Republic of China.
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14
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Dlugash G, Schultheiss OC. Suitability of saliva stimulants for valid assessment of steroid hormones via radioimmunoassay. Psychoneuroendocrinology 2021; 127:105175. [PMID: 33647573 DOI: 10.1016/j.psyneuen.2021.105175] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Revised: 02/13/2021] [Accepted: 02/15/2021] [Indexed: 11/29/2022]
Abstract
Salivary steroid measurement is a popular way to assess endocrine hormone levels, but efficient sample collection can be challenging because the use of stimulants can interfere with valid measurement. The aim of this study was therefore to identify a stimulant that can be used in assessment of the steroid hormones cortisol (C), testosterone (T), progesterone (P) and estradiol (E2) without impairing their quantification by radioimmunoassay. Study 1 and 2 explored the suitability of potential stimulants in comparison to unstimulated saliva collection. Study 3 tested stimulants under standardized conditions in water. Across all three studies, Parafilm® wax foil performed best and was therefore tested once more and validated as a saliva stimulant in Study 4. No significant differences between unstimulated saliva and Parafilm®-stimulated saliva could be found for any of the four hormones assayed. Therefore, Parafilm® appears to be a suitable saliva flow stimulant for assaying the salivary steroid hormones C, T, P and E2 by radioimmunoassay.
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Affiliation(s)
- Gelena Dlugash
- Chair for Experimental Psychology, Motivation, and Affective Neuroscience Department of Psychology, Friedrich-Alexander University, Nägelsbachstrasse 49b, 91052 Erlangen, Germany.
| | - Oliver C Schultheiss
- Chair for Experimental Psychology, Motivation, and Affective Neuroscience Department of Psychology, Friedrich-Alexander University, Nägelsbachstrasse 49b, 91052 Erlangen, Germany
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15
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Cho J, Chien LC, Holditch-Davis D. Associations Between Hormonal Biomarkers and Preterm Infant Health and Development During the First 2 Years After Birth. Biol Res Nurs 2021; 23:188-197. [PMID: 32700638 PMCID: PMC8264856 DOI: 10.1177/1099800420942893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND Testosterone levels have been used to examine infant boys' vulnerability to health and developmental problems, following the general theories of gender differences and the theory of extreme male brain of autism. OBJECTIVES As testosterone is a representative androgen hormone and is higher in preterm than full-term infants, we used this steroid to determine if hypothalamic pituitary hormones, testosterone, and cortisol, were related to physical growth, health, and development of very-low-birthweight (VLBW, BW < 1,500 g) infants. METHOD For this comparative longitudinal study, 40 VLBW infants were recruited from a neonatal intensive care unit of a tertiary medical center. Data were collected from medical record reviews, questionnaires, and assessments of infant development at 6, 12, and 24 months. We collected saliva at the three time points and measured hormones using enzyme-immunoassays. RESULTS General and generalized mixed models showed that a 1pg/ml increment of testosterone was related to a -0.42% decrease in body weight, a -0.18% decrease in length, and a -0.10% decrease in head circumference. Cortisol levels were not associated with any outcome variable. The interactions between testosterone and time on physical growth and socioemotional development also occurred. DISCUSSION Elevated testosterone levels can be a biological risk factor for poor infant growth and development. Theories about the effects of elevated prenatal testosterone could be useful in predicting health and developmental outcomes among VLBW infants. Research beyond the first 2 years will be needed as infants show more socioemotional and behavioral problems as they grow older.
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Affiliation(s)
- June Cho
- School of Nursing, University of Nevada, Las Vegas, NV, USA
| | - Lung-Chang Chien
- Epidemiology and Biostatistics program, Department of Environmental
and Occupational Health, School of Public Health, University of Nevada Las Vegas,
NV, USA
| | - Diane Holditch-Davis
- Marcus E. Hobbs Professor Emeritus, School of Nursing, Duke University, DUMC, Durham, NC, USA
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16
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Lood Y, Aardal E, Ahlner J, Ärlemalm A, Carlsson B, Ekman B, Wahlberg J, Josefsson M. Determination of testosterone in serum and saliva by liquid chromatography-tandem mass spectrometry: An accurate and sensitive method applied on clinical and forensic samples. J Pharm Biomed Anal 2020; 195:113823. [PMID: 33349473 DOI: 10.1016/j.jpba.2020.113823] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 11/23/2020] [Accepted: 11/30/2020] [Indexed: 11/24/2022]
Abstract
A highly sensitive and accurate electrospray liquid chromatography tandem-mass spectrometry (ESI-LC-MS/MS) method for determination of testosterone in human serum and saliva was developed and validated. Accurate quantification of testosterone in human matrices is essential in diagnosis and management of androgen status in men, women and children, and in forensic investigations of suspected abuse of anabolic androgenic steroids. Chromatography was performed on an HSS-T3 C18 column with a total run-time of 5.5 min. The tandem mass spectrometry was operated in positive electrospray ionization mode with multiple reaction monitoring. Serum and saliva samples of 200 μL, were prepared by solid-phase extraction using a 96-well plate following precipitation with 200 μL methanol. 13C labeled testosterone was used as internal standard for quantification. The standard curve was linear within the range of 4-1000 pg/mL and the limit of quantification of both serum and salivary testosterone was 4 pg/mL. Accuracy were 99-101 % and 93-95 % with between-run imprecision in serum and saliva, respectively, and inter- and intra-assay coefficients of variation were less than 9.2 %. The method proved to be applicable for determination of testosterone over a wide range of concentrations in serum and saliva samples from clinical patients with various androgen disorders, healthy male and female adults as well as from forensic cases.
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Affiliation(s)
- Yvonne Lood
- National Board of Forensic Medicine, Department of Forensic Genetics and Forensic Toxicology, Linköping, Sweden; Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden.
| | - Elisabeth Aardal
- Division of Clinical Chemistry and Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Johan Ahlner
- Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Andreas Ärlemalm
- Department of Clinical Pharmacology and Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Björn Carlsson
- Department of Clinical Pharmacology and Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Bertil Ekman
- Department of Endocrinology and Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden
| | - Jeanette Wahlberg
- Department of Endocrinology and Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden
| | - Martin Josefsson
- National Forensic Centre, Linköping, Sweden; Department of Physics, Chemistry and Biology, Linköping University, Linköping, Sweden
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17
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Fürtbauer I, Christensen C, Bracken A, O'Riain MJ, Heistermann M, King AJ. Energetics at the urban edge: Environmental and individual predictors of urinary C-peptide levels in wild chacma baboons (Papio ursinus). Horm Behav 2020; 126:104846. [PMID: 32860833 DOI: 10.1016/j.yhbeh.2020.104846] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 07/23/2020] [Accepted: 08/21/2020] [Indexed: 10/23/2022]
Abstract
As human-modified landscapes encroach into natural habitats, wildlife face a reduction in natural food sources but also gain access to calorie-rich, human-derived foods. However, research into the energetics of wildlife living within and adjacent to urban and rural landscapes is lacking. C-peptide - a proxy for insulin production and a diagnostic tool for assessing pancreatic function in humans and domestic animals - can be quantified non-invasively from urine (uCP) and may provide a way to investigate the energetic correlates of living in human-altered landscapes. UCP is increasingly used in studies of primate energetics, and here we examine predictors of variation in uCP levels in n = 17 wild chacma baboons (Papio ursinus) living at the urban edge on the Cape Peninsula, South Africa. We find that uCP was positively associated with food provisioning and negatively with night fasting. UCP levels were comparable between winter and summer but significantly lower during spring, possibly driven by consumption of energy-rich seeds during summer and more human-derived foods during winter. UCP was elevated in pregnant females and similar for lactating and cycling females. We find no effect of dominance rank on uCP. Samples collected with synthetic Salivettes had significantly lower uCP levels than directly pipetted samples. Overall, our results indicate that uCP is a reliable, non-invasive measure of energy balance and intake in baboons, and suggest potential energetic benefits of living at the urban edge. More broadly, studies of uCP may offer unique insight into the environmental control of hormone-behaviour relationships in species crossing natural and urban environments.
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Affiliation(s)
- Ines Fürtbauer
- Department of Biosciences, College of Science, Swansea University, SA2 8PP Swansea, UK; Institute for Communities and Wildlife in Africa, Department of Biological Sciences, University of Cape Town, Rondebosch 7701, South Africa.
| | - Charlotte Christensen
- Department of Biosciences, College of Science, Swansea University, SA2 8PP Swansea, UK; Institute for Communities and Wildlife in Africa, Department of Biological Sciences, University of Cape Town, Rondebosch 7701, South Africa
| | - Anna Bracken
- Department of Biosciences, College of Science, Swansea University, SA2 8PP Swansea, UK; Institute for Communities and Wildlife in Africa, Department of Biological Sciences, University of Cape Town, Rondebosch 7701, South Africa
| | - M Justin O'Riain
- Institute for Communities and Wildlife in Africa, Department of Biological Sciences, University of Cape Town, Rondebosch 7701, South Africa
| | | | - Andrew J King
- Department of Biosciences, College of Science, Swansea University, SA2 8PP Swansea, UK; Institute for Communities and Wildlife in Africa, Department of Biological Sciences, University of Cape Town, Rondebosch 7701, South Africa
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18
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Murphy KJ, Hodges TE, Sheppard PAS, Troyer AK, Hampson E, Galea LAM. Sex differences in cortisol and memory following acute social stress in amnestic mild cognitive impairment. J Clin Exp Neuropsychol 2020; 42:881-901. [PMID: 33023371 DOI: 10.1080/13803395.2020.1825633] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
OBJECTIVE Older adults with amnestic mild cognitive impairment (aMCI) develop Alzheimer's type dementia approximately 10 times faster annually than the normal population. Adrenal hormones are associated with aging and cognition. We investigated the relationship between acute stress, cortisol, and memory function in aMCI with an exploratory analysis of sex. METHOD Salivary cortisol was sampled diurnally and during two test sessions, one session with the Trier Social Stress Test (TSST), to explore differences in the relationship between cortisol and memory function in age-normal cognition (NA) and aMCI. Participants with aMCI (n = 6 women, 9 men; mean age = 75) or similarly aged NA (n = 9 women, 7 men, mean age = 75) were given tests of episodic, associative, and spatial working memory with a psychosocial stressor (TSST) in the second session. RESULTS The aMCI group performed worse on the memory tests than NA as expected, and males with aMCI had elevated cortisol levels on test days. Immediate episodic memory was enhanced by social stress in NA but not in the aMCI group, indicating that stress-induced alterations in memory are different in individuals with aMCI. High cortisol was associated with impaired performance on episodic memory in aMCI males only. Cortisol in Session 1 moderated the relationship with spatial working memory, whereby higher cortisol was associated with worse performance in NA, but better spatial working memory in aMCI. In addition, effects of aMCI on perceived anxiety in response to stress exposure were moderated by stress-induced cortisol in a sex-specific manner. CONCLUSIONS We show effects of aMCI on Test Session cortisol levels and effects on perceived anxiety, and stress-induced impairments in memory in males with aMCI in our exploratory sample. Future studies should explore sex as a biological variable as our findings suggest that effects at the confluence of aMCI and stress can be obfuscated without sex as a consideration.
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Affiliation(s)
- Kelly J Murphy
- Neuropsychology and Cognitive Health Program, Baycrest , Toronto, ON, Canada.,Psychology Department, University of Toronto , Toronto, ON, Canada
| | - Travis E Hodges
- Djavad Mowafaghian Centre for Brain Health, Department of Psychology, University of British Columbia , Vancouver, BC, Canada
| | - Paul A S Sheppard
- Djavad Mowafaghian Centre for Brain Health, Department of Psychology, University of British Columbia , Vancouver, BC, Canada
| | - Angela K Troyer
- Neuropsychology and Cognitive Health Program, Baycrest , Toronto, ON, Canada.,Psychology Department, University of Toronto , Toronto, ON, Canada
| | | | - Liisa A M Galea
- Djavad Mowafaghian Centre for Brain Health, Department of Psychology, University of British Columbia , Vancouver, BC, Canada
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19
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Rincon AV, Heistermann M, Schülke O, Ostner J. Testosterone and cortisol are negatively associated with ritualized bonding behavior in male macaques. Psychoneuroendocrinology 2020; 120:104774. [PMID: 32574857 DOI: 10.1016/j.psyneuen.2020.104774] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Revised: 06/04/2020] [Accepted: 06/07/2020] [Indexed: 12/17/2022]
Abstract
Neuroendocrine research on the formation of social bonds has primarily focused on the role of nonapeptides. However, steroid hormones often act simultaneously to either inhibit or facilitate bonding. Testosterone is proposed to mediate a trade-off between male mating effort and nurturing behavior; therefore, low levels are predicted during periods of nurturing infant care and social bonding. In species where social bonding and support regulates hypothalamic-pituitary-adrenal axis activity, we also expect glucocorticoid levels to be low during bonding periods. We investigated how immunoreactive urinary testosterone (iuT) and cortisol (iuC) were related to triadic male-infant-male interactions - a ritualized male bonding behavior - as well as infant care in male Barbary macaques (Macaca sylvanus). We collected >3000 h of behavioral observation data during full-day focal animal follows from 14 adult males and quantified iuT and iuC from 650 urine samples. iuT was negatively correlated with rates of triadic interactions within subjects, but positively correlated between subjects. iuC was negatively correlated with triadic interactions both within and between subjects. Time spent caring for infants was positively correlated to both iuT and iuC within subjects, but not between subjects. The observed negative relationship between iuT and triadic interactions within subjects may be beneficial to lower competitive tendencies between adult males and to not inhibit bond formation. However, the positive correlation of iuT with triadic interactions between subjects was unexpected. We speculate that it could be due to a link between triadic interactions and coalition formation. A negative relationship between triadic interactions and iuC could reflect increased bonding and perceived social support as triadic interactions predict future coalition formation in this species, or reflect buffered tensions between males. The positive relationship of iuT and iuC with infant care suggests that the handling of infants may be less nurturing but rather protective or competitive in this species. Measuring steroid hormones in relation to bonding and nurturing can help us interpret behaviors within the ecological contexts that they occur.
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Affiliation(s)
- Alan V Rincon
- Department of Behavioral Ecology, Johann-Friedrich-Blumenbach Institute for Zoology and Anthropology, University of Goettingen, Goettingen, Germany; Leibniz ScienceCampus Primate Cognition, Goettingen, Germany.
| | - Michael Heistermann
- Endocrinology Laboratory, German Primate Center, Leibniz Institute for Primate Research, Goettingen, Germany
| | - Oliver Schülke
- Department of Behavioral Ecology, Johann-Friedrich-Blumenbach Institute for Zoology and Anthropology, University of Goettingen, Goettingen, Germany; Leibniz ScienceCampus Primate Cognition, Goettingen, Germany; Research Group Social Evolution in Primates, German Primate Center, Leibniz Institute for Primate Research, Goettingen, Germany
| | - Julia Ostner
- Department of Behavioral Ecology, Johann-Friedrich-Blumenbach Institute for Zoology and Anthropology, University of Goettingen, Goettingen, Germany; Leibniz ScienceCampus Primate Cognition, Goettingen, Germany; Research Group Social Evolution in Primates, German Primate Center, Leibniz Institute for Primate Research, Goettingen, Germany
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20
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Zhang XL, Wu ZZ, Xu Y, Wang JG, Wang YQ, Cao MQ, Wang CH. Saliva proteomic analysis reveals possible biomarkers of renal cell carcinoma. OPEN CHEM 2020. [DOI: 10.1515/chem-2020-0048] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractEarly diagnosis is a key to improve the prognosis of renal cell carcinoma (RCC); however, reliable RCC biomarkers are lacking in clinical practice. In this study, we used isobaric tags for relative and absolute quantification-based mass spectrometry to identify salivary proteins as biomarkers for the diagnosis of RCC. The objective of this study is to discover biomarkers from saliva by utilizing high-throughput quantitative proteomics approaches. Saliva proteins from 124 RCC patients and healthy individuals were identified and quantified. RCC putative biomarkers were verified by real-time polymerase chain reaction or enzyme-linked immunosorbent assay in a prevalidation sample set. Seventy-one differentially expressed salivary proteins were identified. Serotransferrin, haptoglobin, KRT9, and S100A9, which in previous studies were found to be most closely related to cancers, were selected as putative RCC biomarkers. Haptoglobin and S100A9 were significantly elevated in RCC compared with healthy control samples, although the expression of serotransferrin and KRT9 did not differ between the groups. Furthermore, receiver operating characteristic curves with a cut-off value of 75.49 ng/mL for S100A9 revealed a sensitivity of 87.10% and a specificity of 91.94% for discriminating RCC patients from healthy individuals. Salivary haptoglobin differentiated RCC patients from healthy controls with a sensitivity of 85.48% and specificity of 80.65% (cut-off value 43.02 µg/mL). These results provide experimental evidence to support S100A9 and haptoglobin as potential novel, noninvasive biomarkers for the diagnosis of RCC.
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Affiliation(s)
- Xiao Li Zhang
- Central Laboratory, The ShenZhen Second People’s Hospital, 3002 Sunggang W Road, Futian District, Shenzhen 518035, P. R. China
| | - Zheng Zhi Wu
- Geriatrics Department, The ShenZhen Second People's Hospital, 3002 Sunggang W Road, Futian District, Shenzhen 518035, P. R. China
| | - Yun Xu
- Central Laboratory, The ShenZhen Second People’s Hospital, 3002 Sunggang W Road, Futian District, Shenzhen 518035, P. R. China
| | - Ji Guo Wang
- Oncology Department, Chinese Medicine Hospital of Baoan District, Shenzhen 518113, P. R. China
| | - Yong Qiang Wang
- Central Laboratory, The ShenZhen Second People’s Hospital, 3002 Sunggang W Road, Futian District, Shenzhen 518035, P. R. China
| | - Mei Qun Cao
- Central Laboratory, The ShenZhen Second People’s Hospital, 3002 Sunggang W Road, Futian District, Shenzhen 518035, P. R. China
| | - Chang Hao Wang
- Central Laboratory, The ShenZhen Second People’s Hospital, 3002 Sunggang W Road, Futian District, Shenzhen 518035, P. R. China
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21
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Martín Santos P, Campo L, Olgiati L, Polledri E, Del Nogal Sánchez M, Fustinoni S. Development of a method to profile 2- to 4-ring polycyclic aromatic hydrocarbons in saliva samples from smokers and non-smokers by headspace-solid-phase microextraction-gas chromatography-triple quadrupole tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1152:122273. [PMID: 32721862 DOI: 10.1016/j.jchromb.2020.122273] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 06/15/2020] [Accepted: 07/12/2020] [Indexed: 12/11/2022]
Abstract
This study reports the development of a method based on headspace (HS)-solid-phase microextraction (SPME)-gas chromatography (GC)-triple quadrupole tandem mass spectrometry (MS/MS) for the quantification of 2- to 4-ring polycyclic aromatic hydrocarbons (PAHs) in saliva samples. Eight unmetabolized compounds (naphthalene, acenaphthylene, acenaphthene, fluorene, phenanthrene, anthracene, fluoranthene and pyrene) were quantified using six deuterated PAHs as surrogate internal standards. The absence of matrix effect allowed saliva samples to be quantified by external calibration method. The optimized method resulted easy, with minimal sample pre-treatment (homogenization of the sample), and it achieved the highest sensitivity up to date: limits of quantification (LOQ) were in the 0.8-26.4 ng L-1 range, with a significant improvement in comparison with the few existing methods. Intra- and inter-run precisions provided CV values <18.1%, and accuracies within 20% of the spiked concentration. The application of the method to the analysis of fresh saliva samples collected by spitting from smokers (n = 10) and non-smokers (n = 10) showed that PAHs were quantifiable in all samples and that smokers had higher levels of all compounds than non-smokers. These results show that the method is suitable for quantifying low-boiling PAHs in saliva samples from individuals exposed at different PAH levels.
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Affiliation(s)
- Patricia Martín Santos
- Departament of Analytical Chemistry, Nutrition and Food Science, Faculty of Chemistry, University of Salamanca, 37008 Salamanca, Spain
| | - Laura Campo
- Environmental and Industrial Toxicology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
| | - Luca Olgiati
- Environmental and Industrial Toxicology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Elisa Polledri
- EPIGET - Epidemiology, Epigenetics, and Toxicology Lab, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Italy
| | - Miguel Del Nogal Sánchez
- Departament of Analytical Chemistry, Nutrition and Food Science, Faculty of Chemistry, University of Salamanca, 37008 Salamanca, Spain
| | - Silvia Fustinoni
- Environmental and Industrial Toxicology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy; EPIGET - Epidemiology, Epigenetics, and Toxicology Lab, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Italy
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Ney LJ, Felmingham KL, Bruno R, Matthews A, Nichols DS. Simultaneous quantification of endocannabinoids, oleoylethanolamide and steroid hormones in human plasma and saliva. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1152:122252. [PMID: 32615536 DOI: 10.1016/j.jchromb.2020.122252] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 05/06/2020] [Accepted: 06/17/2020] [Indexed: 12/22/2022]
Abstract
Endogenous cannabinoids are an increasingly intriguing target for biological research, given the changing legal status of medicinal cannabinoid-based products throughout the world. However, studying the endogenous cannabinoid system is a relatively new field, with few research teams attempting to develop quantitative methods for these important modulatory analytes in human matrices, other than blood. Here we develop and validate simultaneous methods for quantifying arachidonoyl-ethanolamide, 2-arachidonoyl glycerol, oleoylethanolamide, cortisol and progesterone in human plasma and saliva using liquid-liquid extraction combined with ultra-high performance liquid chromatography coupled to tandem mass spectrometry. The method was fully validated over the linear concentration range 1-20 ng/mL for each analyte in plasma (R2 = 0.98-0.99) and saliva (R2 = 0.99). We find that salivary endogenous cannabinoids and cortisol are acutely responsive to exercise, suggesting that targeting the saliva system may present a convenient way for future research of endogenous cannabinoids. This finding also encourages a broader understanding of the endogenous cannabinoid system during stress responses, and our method may consequently lead to a better understanding of the role of endogenous cannabinoids in peripheral tissues.
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Affiliation(s)
- Luke J Ney
- School of Psychological Sciences, University of Tasmania, Australia.
| | - Kim L Felmingham
- School of Psychological Sciences, University of Melbourne, Australia
| | - Raimondo Bruno
- School of Psychological Sciences, University of Tasmania, Australia
| | - Allison Matthews
- School of Psychological Sciences, University of Tasmania, Australia
| | - David S Nichols
- Central Science Laboratory, University of Tasmania, Australia
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Johnshoy Q, Moroze E, Kaser I, Tanabe A, Adkisson C, Hutzley S, Cole C, Garces S, Stewart K, Campisi J. Social media use following exposure to an acute stressor facilitates recovery from the stress response. Physiol Behav 2020; 223:113012. [PMID: 32533973 DOI: 10.1016/j.physbeh.2020.113012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 05/25/2020] [Accepted: 06/08/2020] [Indexed: 02/08/2023]
Abstract
Recent evidence indicates that social network use (e.g., Facebook) prior to exposure to an acute stressor can buffer the physiological response to that stressor. However, it is unclear if using social media after exposure to an acute stressor can modulate recovery following the stressor. In the current study, therefore, we examined if social media use might serve as an effective coping mechanism to help deal with exposure to a stressor. Heart rate, blood pressure, and salivary cortisol were compared in healthy college undergraduates (n = 23) before and after completion of the Trier Social Stress Test (TSST). Following exposure to the TSST, subjects were selected to use social media, read quietly or given the choice to use social media or read quietly during a 15- minute recovery period. The TSST induced significant increases in heart rate, systolic blood pressure, and salivary cortisol. Additional analyses revealed that subjects that used social media after termination of the acute stressor demonstrated a significantly facilitated hemodynamic and a trend for a more rapid endocrine recovery compared with subjects that read quietly during the recovery period. Although the majority (71%) of subjects given the choice of recovery modality chose to use social media, differences were not observed between groups selected to use social media and those given the choice to do so during the recovery period. These results suggest that sympathetic nervous system and hypothalamic-pituitary-adrenal axis recovery following stimulation by an acute stressor might be modulated by social media use in undergraduates. Collectively, these data provide further insight into the interaction between psychosocial stress, social media use and health.
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Affiliation(s)
- Quinn Johnshoy
- Department of Biology, Regis University, Denver, CO 80221 USA
| | - Erin Moroze
- Department of Biology, Regis University, Denver, CO 80221 USA
| | - Isabella Kaser
- Department of Biology, Regis University, Denver, CO 80221 USA
| | - Aleina Tanabe
- Department of Biology, Regis University, Denver, CO 80221 USA
| | - Connor Adkisson
- Department of Biology, Regis University, Denver, CO 80221 USA
| | | | - Celeste Cole
- Department of Biology, Regis University, Denver, CO 80221 USA
| | - Sherlynn Garces
- Department of Biology, Regis University, Denver, CO 80221 USA
| | - Klaudia Stewart
- Department of Biology, Regis University, Denver, CO 80221 USA
| | - Jay Campisi
- Department of Biology, Regis University, Denver, CO 80221 USA.
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Contreras-Aguilar MD, Hevia ML, Escribano D, Lamy E, Tecles F, Cerón JJ. Effect of food contamination and collection material in the measurement of biomarkers in saliva of horses. Res Vet Sci 2020; 129:90-95. [PMID: 31954319 DOI: 10.1016/j.rvsc.2020.01.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 01/05/2020] [Accepted: 01/07/2020] [Indexed: 12/29/2022]
Abstract
This study aims to evaluate the effect of the presence of food and the material used in a panel of biomarkers in saliva of horses. For the food effect study, clean saliva was incubated with a known amount of food consisting of oats, hay or grass. Significant changes were observed when saliva was incubated with oats for total protein (P = .050) and phosphorus (P = .008), with grass for total protein (P = .037), salivary alpha-amylase (sAA, P = .018), total esterase (TEA, P = .018), butyrilcholinesterase (BChE, P = .037), adenosine deaminase (ADA, P = .037), and total bilirubin (P = .018), and with hay for sAA (P = .018), phosphorus (P = .037), γ-glutamyl transferase (gGT, P = .004), and creatine kinase (CK, P = .016). For the material-based collection study, saliva using a sponge and a cotton role at the same time were collected and compared. Lower values were obtained in clean saliva collected with cotton role compared to sponge for sAA (P = .030), TEA (P = .034), BChE (P = .003), gGT (P = .002) and cortisol (P < .001) In conclusion, the presence of food and the material used for its collection, can influence the results obtained when analytes are measured in saliva of horses.
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Affiliation(s)
- María Dolores Contreras-Aguilar
- Interdisciplinary Laboratory of Clinical Analysis (Interlab-UMU), Veterinary School, Campus of Excellence Mare Nostrum, University of Murcia, Campus Espinardo, 30100 Murcia, Spain
| | - María Luisa Hevia
- Department of Animal Production, Veterinary School, Campus of Excellence Mare Nostrum, University of Murcia, Campus Espinardo, 30100 Espinardo, Murcia, Spain
| | - Damián Escribano
- Interdisciplinary Laboratory of Clinical Analysis (Interlab-UMU), Veterinary School, Campus of Excellence Mare Nostrum, University of Murcia, Campus Espinardo, 30100 Murcia, Spain; Department of Animal Production, Veterinary School, Campus of Excellence Mare Nostrum, University of Murcia, Campus Espinardo, 30100 Espinardo, Murcia, Spain
| | - Elsa Lamy
- MED - Mediterranean Institute for Agriculture, Environment and Development, IIFA - Instituto de Investigação e Formação Avançada, University of Évora, Núcleo da Mitra, Apartado 94 7006-554, Portugal
| | - Fernando Tecles
- Interdisciplinary Laboratory of Clinical Analysis (Interlab-UMU), Veterinary School, Campus of Excellence Mare Nostrum, University of Murcia, Campus Espinardo, 30100 Murcia, Spain
| | - Jose J Cerón
- Interdisciplinary Laboratory of Clinical Analysis (Interlab-UMU), Veterinary School, Campus of Excellence Mare Nostrum, University of Murcia, Campus Espinardo, 30100 Murcia, Spain.
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Manig F, Hellwig M, Pietz F, Henle T. Quantitation of free glycation compounds in saliva. PLoS One 2019; 14:e0220208. [PMID: 31532774 PMCID: PMC6750567 DOI: 10.1371/journal.pone.0220208] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 07/10/2019] [Indexed: 12/14/2022] Open
Abstract
In the course of the Maillard reaction, which occurs during heating of food but also under physiological condition, a broad spectrum of reaction products is formed. Among them, the advanced glycation endproducts (AGEs) Nε-carboxymethyllysine (CML), pyrraline (Pyr), methylglyoxal-derived hydroimidazolone 1 (MG-H1) and Nε-carboxyethyllysine (CEL) are the quantitatively dominating compounds during later reaction stages. Those dietary glycation compounds are under discussion as to be associated with chronic inflammation and the pathophysiological consequences of diseases such as diabetes. In the present study, the concentration of individual glycation compounds in saliva was monitored for the first time and related to their dietary uptake. Fasting saliva of 33 metabolically healthy subjects was analyzed with HPLC-MS/MS. The observed levels of individual glycation compounds ranged from 0.5 to 55.2 ng/ml and differed both intra- and interindividually. Patterns did not correlate with subject-related features such as vegetarianism or sports activities, indicating that dietary intake may play an important role. Therefore, six volunteers were asked to eat a raw food diet free of glycation compounds for two days. Within two days, salivary Pyr was lowered from median 1.7 ng/ml to a minimum level below the limit of detection, and MG-H1 decreased from 3.6 to 1.7 ng/ml in in a time-dependent manner after two days. Salivary CML and CEL concentrations were not affected. Therefore, measuring Pyr and MG-H1 in saliva is a suitable diagnostic tool to monitor the dietary intake and metabolic transit of glycation compounds present in heated foods.
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Affiliation(s)
- Friederike Manig
- Chair of Food Chemistry, Technische Universität Dresden, Dresden, Germany
- * E-mail: (TH); (MH); (FM)
| | - Michael Hellwig
- Chair of Food Chemistry, Technische Universität Dresden, Dresden, Germany
- * E-mail: (TH); (MH); (FM)
| | - Franziska Pietz
- Chair of Food Chemistry, Technische Universität Dresden, Dresden, Germany
| | - Thomas Henle
- Chair of Food Chemistry, Technische Universität Dresden, Dresden, Germany
- * E-mail: (TH); (MH); (FM)
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Chen Z, Zhang Q, Chen S, Wang W, Liu G, Deng H. Determination, intercorrelation and intraindividual stability of five steroids in hair, saliva and urine among chinese college students. Steroids 2019; 149:108418. [PMID: 31150683 DOI: 10.1016/j.steroids.2019.05.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 05/19/2019] [Accepted: 05/25/2019] [Indexed: 11/18/2022]
Abstract
Hair steroids and their ratios are believed to be reliable biomarkers reflecting the long-term exposure of circulating steroids. Hereinto, two underlying assumptions are that hair biomarkers have consistency with traditional biomarkers in saliva or urine, and good long-term intraindividual stability across a long time. However, these two assumptions have not been well verified for most of hair biomarkers except for hair cortisol. Thus, this study aimed to verify the two issues on eight hair biomarkers: cortisol, cortisone, dehydroepiandrosterone (DHEA), testosterone, progesterone, the ratios of cortisol to cortisone, DHEA and testosterone. The five steroids in hair, saliva and urine were measured with high performance chromatography tandem mass spectrometry. The results revealed that the hair biomarkers had significant correlations with the salivary biomarkers calculated by the mean area under curve (AUCg) in a matched time span (ps < 0.05) where the coefficients of correlations (r) were >0.3 (r = 0.322-0.616) except cortisone and progesterone (r = 0.177 and 0.212, respectively). It indicated that hair biomarkers had weak to moderate consistency with salivary ones. But only three biomarkers showed the consistency between hair and urine, such as testosterone (r = 0.352, p < 0.01), progesterone (r = 0.228, p < 0.05) and the ratio of cortisol to testosterone (r = 0.502, p < 0.01). Hair biomarkers showed no absolute stability, but moderate to high long-term relative stability across 12 months where interclass correlation coefficients ranged between 0.356 and 0.678 (ps < 0.01). These results implied that the eight biomarkers in hair could retrospectively reflect their cumulative exposure in vivo. Therefore, the hair biomarkers would be considerable reliable long-term biomarkers for psychological and physiological research.
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Affiliation(s)
- Zheng Chen
- Key Laboratory of Child Development and Learning Science (Southeast University), Ministry of Education, Nanjing 210096, China; Institute of Child Development and Education, Southeast University, Nanjing 210096, China; Department of Brain and Learning Science, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Quan Zhang
- Key Laboratory of Child Development and Learning Science (Southeast University), Ministry of Education, Nanjing 210096, China; Institute of Child Development and Education, Southeast University, Nanjing 210096, China; Department of Brain and Learning Science, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Shenghuo Chen
- Key Laboratory of Child Development and Learning Science (Southeast University), Ministry of Education, Nanjing 210096, China; Institute of Child Development and Education, Southeast University, Nanjing 210096, China; Department of Brain and Learning Science, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Weiwen Wang
- Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China
| | - Guoxiong Liu
- School of Psychology, Nanjing Normal University, Nanjing 210097, China
| | - Huihua Deng
- Key Laboratory of Child Development and Learning Science (Southeast University), Ministry of Education, Nanjing 210096, China; Institute of Child Development and Education, Southeast University, Nanjing 210096, China; Department of Brain and Learning Science, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China.; Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China.
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27
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Schiffer L, Adaway JE, Arlt W, Keevil BG. A liquid chromatography-tandem mass spectrometry assay for the profiling of classical and 11-oxygenated androgens in saliva. Ann Clin Biochem 2019; 56:564-573. [PMID: 31037957 DOI: 10.1177/0004563219847498] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BackgroundClassical and 11-oxygenated androgens both contribute to the androgen pool. Regular monitoring of the androgen status is required in disorders of steroidogenesis, and multiplexing of androgens improves the diagnostic ability of an assay. Due to the cheap non-invasive collection, saliva is advantageous when multiple samples are required. Liquid chromatography-tandem mass spectrometry (LC-MS/MS) offers sensitive, simultaneous quantification of steroids with short run times. Here, we have developed an LC-MS/MS assay for the simultaneous measurement of 17-hydroxyprogesterone, androstenedione, testosterone, 11β-hydroxyandrostenedione and 11-ketotestosterone in saliva.MethodsSamples (300 μL unstimulated whole saliva) were prepared by supported liquid extraction with dichloromethane and were reconstituted in 40% methanol. After online solid phase extraction with C18 cartridges, liquid chromatography was performed on a C8 column using a water/methanol gradient containing 0.1% formic acid and 2 mmol/L ammonium acetate. A Waters TQ-S mass spectrometer was used for quantification.ResultsTotal run time was 6.4 min. For all analytes, recovery was between 89% and 109%, ion suppression between 86% and 105%. Intra- and inter-assay comparisons showed a coefficient of variation <10% and the bias between measured and nominal concentration varied between –8% and 10%. Interference with a large set of natural and synthetic steroids was excluded. The assay was applied for the measurement of the androgen profile in healthy men ( n = 17) and women ( n = 10) which confirmed the sensitivity of the assay to be appropriate.ConclusionWe present a novel LC-MS/MS assay for the comprehensive profiling of classical and 11-oxygenated androgens with potential for routine clinical application.
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Affiliation(s)
- Lina Schiffer
- 1 Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK.,2 Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, UK
| | - Joanne E Adaway
- 3 Biochemistry Department, Wythenshawe Hospital, Manchester University NHS Trust, Manchester, UK
| | - Wiebke Arlt
- 1 Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK.,2 Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, UK
| | - Brian G Keevil
- 3 Biochemistry Department, Wythenshawe Hospital, Manchester University NHS Trust, Manchester, UK
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