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Salivary metabolomics

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https://www.readbyqxmd.com/read/29776537/comparative-study-on-metabolite-level-in-tissue-specific-human-mesenchymal-stem-cells-by-an-ultra-performance-liquid-chromatography-quadrupole-time-of-flight-mass-spectrometry
#1
Seul Ji Lee, TacGhee Yi, Soo Hyun Ahn, Dong Kyu Lim, Si-Na Kim, Hyun-Joo Lee, Yun-Kyoung Cho, Jae-Yol Lim, Jong-Hyuk Sung, Jeong-Ho Yun, Johan Lim, Sun U Song, Sung Won Kwon
Mesenchymal stem cells (MSCs) are a promising therapeutic option for cell-based therapy due to their immunomodulatory and regenerative properties. They can be isolated from various adult tissues, including bone marrow, fat, dental tissue, and glandular tissue. Although they share common characteristics, little is known about the biological differences between MSC populations derived from different tissues. In this study, we used MS to compare the endogenous metabolite level in the human MSCs originating from the bone marrow, adipose tissue, periodontal ligaments, and salivary glands...
September 18, 2018: Analytica Chimica Acta
https://www.readbyqxmd.com/read/29750386/saliva-in-the-omics-era-a-promising-tool-in-paediatrics
#2
Eftychia Pappa, Eleni Kousvelari, Heleni Vastardis
In vulnerable populations, such as infants and children, saliva makes the perfect diagnostic medium because of its non-invasive collection, easy handling and storage of samples. Its unique biomarker profiles help tremendously in the diagnosis of many diseases and conditions. In fact, saliva genomics, proteomics, transcriptomics, metabolomics and microbiome-based discoveries have led to complementary and powerful diagnostic information. In children and neonates, saliva is the preferred medium not only for diagnosis of caries and aggressive periodontitis but also for a number of systemic conditions, metabolic diseases, cognitive functions, stress assessment and evaluation of immunological and inflammatory responses to vaccination...
May 11, 2018: Oral Diseases
https://www.readbyqxmd.com/read/29332424/salivary-metabolomics-profile-of-patients-with-recurrent-aphthous-ulcer-as-revealed-by-liquid-chromatography-tandem-mass-spectrometry
#3
Yantao Li, Daoming Wang, Chunwei Zeng, Yichen Liu, Guangyuan Huang, Zhanlong Mei
Objective We compared the salivary nontargeted metabolite profiles between patients with recurrent aphthous ulcer (RAU) and healthy individuals to investigate the metabolic alterations associated with RAU. Methods Saliva samples were collected from 45 patients with RAU and 49 healthy individuals, and the salivary metabolites were quantified using liquid chromatography-tandem mass spectrometry. The metabolomic profiles were then analyzed using multivariate and univariate statistical methods, and enrichment of the metabolites in various biological pathways was assessed...
March 2018: Journal of International Medical Research
https://www.readbyqxmd.com/read/29291387/a-pilot-study-of-the-metabolomic-profiles-of-saliva-from-female-orthodontic-patients-with-external-apical-root-resorption
#4
Jinglin Zhou, Huimin Hu, Renhuan Huang
BACKGROUND: Orthodontically induced external apical root resorption (OIEARR) is one of the most severe complications of orthodontic treatment, which is hard to diagnose at early stage by merely radiographic examination. This study aimed to identify salivary metabolic products using unbiased metabolic profiling in order to discover biomarkers that may indicate OIEARR. MATERIALS AND METHODS: Unstimulated saliva samples were analyzed from 19 healthy orthodontic patients with EARR (n=8) and non-EARR (n=11)...
March 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29290822/mir-31-5p-acox1-axis-enhances-tumorigenic-fitness-in-oral-squamous-cell-carcinoma-via-the-promigratory-prostaglandin-e2
#5
Yi-Hsuan Lai, Hsuan Liu, Wei-Fan Chiang, Ting-Wen Chen, Lichieh Julie Chu, Jau-Song Yu, Shu-Jen Chen, Hua-Chien Chen, Bertrand Chin-Ming Tan
During neoplastic development, a multitude of changes in genome-encoded information are progressively selected to confer growth and survival advantages to tumor cells. microRNAs-mRNAs regulatory networks, given their role as a critical layer of robust gene expression control, are frequently altered in neoplasm. However, whether and how these gene perturbations impact metabolic homeostasis remains largely unresolved. Methods: Through targeted miRNA expression screening, we uncovered an oral squamous cell carcinoma (OSCC)-associated miRNAome, among which miR-31-5p was identified based on extent of up-regulation, functional impact on OSCC cell migration and invasion, and direct regulation of the rate-limiting enzyme in peroxisomal β-oxidation, ACOX1...
2018: Theranostics
https://www.readbyqxmd.com/read/29208661/plasma-steroid-metabolome-profiling-for-diagnosis-and-subtyping-patients-with-cushing-syndrome
#6
Graeme Eisenhofer, Jimmy Masjkur, Mirko Peitzsch, Guido Di Dalmazi, Martin Bidlingmaier, Matthias Grüber, Julia Fazel, Andrea Osswald, Felix Beuschlein, Martin Reincke
BACKGROUND: Diagnosis of Cushing syndrome requires a multistep process that includes verification of hypercortisolism followed by identification of the cause of adrenocortical hyperfunction. This study assessed whether pituitary, ectopic, and adrenal subtypes of Cushing syndrome were characterized by distinct plasma steroid profiles that might assist diagnosis. METHODS: In this retrospective cross-sectional study, mass spectrometric measurements of a panel of 15 plasma steroids were applied to 222 patient samples tested for Cushing syndrome...
March 2018: Clinical Chemistry
https://www.readbyqxmd.com/read/29046620/the-dental-calculus-metabolome-in-modern-and-historic-samples
#7
Irina M Velsko, Katherine A Overmyer, Camilla Speller, Lauren Klaus, Matthew J Collins, Louise Loe, Laurent A F Frantz, Krithivasan Sankaranarayanan, Cecil M Lewis, Juan Bautista Rodriguez Martinez, Eros Chaves, Joshua J Coon, Greger Larson, Christina Warinner
INTRODUCTION: Dental calculus is a mineralized microbial dental plaque biofilm that forms throughout life by precipitation of salivary calcium salts. Successive cycles of dental plaque growth and calcification make it an unusually well-preserved, long-term record of host-microbial interaction in the archaeological record. Recent studies have confirmed the survival of authentic ancient DNA and proteins within historic and prehistoric dental calculus, making it a promising substrate for investigating oral microbiome evolution via direct measurement and comparison of modern and ancient specimens...
2017: Metabolomics: Official Journal of the Metabolomic Society
https://www.readbyqxmd.com/read/28813487/effect-of-masticatory-stimulation-on-the-quantity-and-quality-of-saliva-and-the-salivary-metabolomic-profile
#8
Nobuyuki Okuma, Makiko Saita, Noriyuki Hoshi, Tomoyoshi Soga, Masaru Tomita, Masahiro Sugimoto, Katsuhiko Kimoto
BACKGROUND: This study characterized the changes in quality and quantity of saliva, and changes in the salivary metabolomic profile, to understand the effects of masticatory stimulation. METHODS: Stimulated and unstimulated saliva samples were collected from 55 subjects and salivary hydrophilic metabolites were comprehensively quantified using capillary electrophoresis-time-of-flight mass spectrometry. RESULTS: In total, 137 metabolites were identified and quantified...
2017: PloS One
https://www.readbyqxmd.com/read/28743678/the-saliva-exposome-for-monitoring-of-individuals-health-trajectories
#9
Vincent Bessonneau, Janusz Pawliszyn, Stephen M Rappaport
BACKGROUND: There is increasing evidence that environmental, rather than genetic, factors are the major causes of most chronic diseases. By measuring entire classes of chemicals in archived biospecimens, exposome-wide association studies (EWAS) are being conducted to investigate associations between a myriad of exposures received during life and chronic diseases. OBJECTIVES: Because the intraindividual variability in biomarker levels, arising from changes in environmental exposures from conception onwards, leads to attenuation of exposure-disease associations, we posit that saliva can be collected repeatedly in longitudinal studies to reduce exposure-measurement errors in EWAS...
July 20, 2017: Environmental Health Perspectives
https://www.readbyqxmd.com/read/28681595/assessment-of-the-therapeutic-potential-of-persimmon-leaf-extract-on-prediabetic-subjects
#10
Mohd M Khan, Bao Quoc Tran, Yoon-Jin Jang, Soo-Hyun Park, William E Fondrie, Khadiza Chowdhury, Sung Hwan Yoon, David R Goodlett, Soo-Wan Chae, Han-Jung Chae, Seung-Young Seo, Young Ah Goo
Dietary supplements have exhibited myriads of positive health effects on human health conditions and with the advent of new technological advances, including in the fields of proteomics, genomics, and metabolomics, biological and pharmacological activities of dietary supplements are being evaluated for their ameliorative effects in human ailments. Recent interests in understanding and discovering the molecular targets of phytochemical-gene-protein-metabolite dynamics resulted in discovery of a few protein signature candidates that could potentially be used to assess the effects of dietary supplements on human health...
July 31, 2017: Molecules and Cells
https://www.readbyqxmd.com/read/28603698/crimean-congo-hemorrhagic-fever-tick-host-virus-interactions
#11
REVIEW
Anna Papa, Katerina Tsergouli, Katerina Tsioka, Ali Mirazimi
Crimean-Congo hemorrhagic fever virus (CCHFV) is transmitted to humans by bite of infected ticks or by direct contact with blood or tissues of viremic patients or animals. It causes to humans a severe disease with fatality up to 30%. The current knowledge about the vector-host-CCHFV interactions is very limited due to the high-level containment required for CCHFV studies. Among ticks, Hyalomma spp. are considered the most competent virus vectors. CCHFV evades the tick immune response, and following its replication in the lining of the tick's midgut, it is disseminated by the hemolymph in the salivary glands and reproductive organs...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28473973/salivary-diagnostics-in-pediatrics-applicability-translatability-and-limitations
#12
REVIEW
Mona Hassaneen, Jill L Maron
In the last decade, technological advances, combined with an improved appreciation of the ability of saliva to inform caregivers about both oral health and systemic disease, have led to the emergence of salivary diagnostic platforms. However, the majority of these assays have targeted diseases that more commonly affect the adult population, largely neglecting infants and children who arguably could benefit the most from non-invasive assessment tools for health monitoring. Gaining access into development, infection, and disease through comprehensive "omic" analyses of saliva could significantly improve care and enhance health access...
2017: Frontiers in Public Health
https://www.readbyqxmd.com/read/28453477/diagnostic-biomarkers-of-alzheimer-s-disease-as-identified-in-saliva-using-1h-nmr-based-metabolomics
#13
Ali Yilmaz, Tim Geddes, BeomSoo Han, Ray O Bahado-Singh, George D Wilson, Khaled Imam, Michael Maddens, Stewart F Graham
Using 1H NMR metabolomics, we biochemically profiled saliva samples collected from healthy-controls (n = 12), mild cognitive impairment (MCI) sufferers (n = 8), and Alzheimer's disease (AD) patients (n = 9). We accurately identified significant concentration changes in 22 metabolites in the saliva of MCI and AD patients compared to controls. This pilot study demonstrates the potential for using metabolomics and saliva for the early diagnosis of AD. Given the ease and convenience of collecting saliva, the development of accurate and sensitive salivary biomarkers would be ideal for screening those at greatest risk of developing AD...
2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28393236/metabolomic-analysis-of-the-saliva-of-japanese-patients-with-oral-squamous-cell-carcinoma
#14
Mitsuyoshi Ohshima, Keisuke Sugahara, Kiyohiro Kasahara, Akira Katakura
The aim of the present study was to characterize the metabolic systems in Japanese patients with oral squamous cell carcinoma (OSCC) using capillary electrophoresis-mass spectrometry (CE-MS) metabolome analysis of saliva samples. A previous study showed variations among ethnicities and tumor sites in the saliva metabolome of patients with OSCC using CE-MS. In the present study, saliva was obtained from 22 Japanese patients with OSCC and from 21 healthy controls who visited the Department of Dentistry, Oral and Maxillofacial Surgery, Tokyo Dental Collage Ichikawa General Hospital, Tokyo, Japan, and all samples were subject to comprehensive quantitative metabolome analysis using CE-MS...
May 2017: Oncology Reports
https://www.readbyqxmd.com/read/28380387/metabolite-quantification-by-nmr-and-lc-ms-ms-reveals-differences-between-unstimulated-stimulated-and-pure-parotid-saliva
#15
João Figueira, Sandra Gouveia-Figueira, Carina Öhman, Pernilla Lif Holgerson, Malin L Nording, Anders Öhman
Saliva is a readily available biofluid that is sensitive to metabolic changes and can be collected through rapid and non-invasive collection procedures, and it shows great promise for clinical metabolomic studies. This work studied the metabolite composition of, and the differences between, saliva samples collected by unstimulated spitting/drooling, paraffin chewing-stimulated spitting, and parotid gland suction using targeted nuclear magnetic resonance (NMR) spectroscopy and liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS) for metabolite quantification...
June 5, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28222414/urinary-steroid-metabolites-in-a-case-of-florid-ectopic-cushing-s-syndrome-and-clinical-correlations
#16
Angelos Kyriacou, Karolina M Stepien, Basil Issa
A 51-year old woman was admitted with multiple cerebral, pulmonary and intra-abdominal abscesses. The combination of apparent immunosuppression, obesity, diabetes mellitus, hypertension, hypokalaemia, osteoporotic fractures and bilateral shoulder avascular necrosis led to a clinical diagnosis of Cushing's syndrome (CS). This was biochemically confirmed as follows: midnight serum cortisol 4275 nmol/L (60-250), non-suppressed overnight dexamethasone suppression test, raised salivary cortisol 716 nmol/L (5-46) and ACTH 639 ng/L (0-46)...
October 2016: Hormones: International Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28220901/distinct-signatures-of-dental-plaque-metabolic-byproducts-dictated-by-periodontal-inflammatory-status
#17
Akito Sakanaka, Masae Kuboniwa, Ei Hashino, Takeshi Bamba, Eiichiro Fukusaki, Atsuo Amano
Onset of chronic periodontitis is associated with an aberrant polymicrobial community, termed dysbiosis. Findings regarding its etiology obtained using high-throughput sequencing technique suggested that dysbiosis holds a conserved metabolic signature as an emergent property. The purpose of this study was to identify robust biomarkers for periodontal inflammation severity. Furthermore, we investigated disease-associated metabolic signatures of periodontal microbiota using a salivary metabolomics approach. Whole saliva samples were obtained from adult subjects before and after removal of supragingival plaque (debridement)...
February 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28193788/erratum-metabolomic-profile-of-low-copy-number-carriers-at-the-salivary-%C3%AE-amylase-gene-suggests-a-metabolic-shift-toward-lipid-based-energy-production-diabetes-2016-65-3362-3368
#18
Abdelilah Arredouani, Matteo Stocchero, Nicola Culeddu, Julia El-Sayed Moustafa, Jean Tichet, Beverley Balkau, Thierry Brousseau, Marco Manca, Mario Falchi
No abstract text is available yet for this article.
April 2017: Diabetes
https://www.readbyqxmd.com/read/28101653/effect-of-timing-of-collection-of-salivary-metabolomic-biomarkers-on-oral-cancer-detection
#19
Shigeo Ishikawa, Masahiro Sugimoto, Kenichiro Kitabatake, Micheal Tu, Ayako Sugano, Iku Yamamori, Asuka Iba, Kazuyuki Yusa, Miku Kaneko, Sana Ota, Kana Hiwatari, Ayame Enomoto, Tomita Masaru, Mitsuyoshi Iino
The aim of this study is to evaluate the effect of duration after meals for saliva collections for oral cancer detection using metabolomics. Saliva samples were collected from oral cancer patients (n = 22) and controls (n = 44). Saliva from cancer patients was collected 12 h after dinner, and 1.5 and 3.5 h after breakfast. Control subjects fasted >1.5 h prior to saliva collection. Hydrophilic metabolites were analyzed using capillary electrophoresis mass spectrometry. Levels of 51 metabolites differed significantly in controls vs...
April 2017: Amino Acids
https://www.readbyqxmd.com/read/28072421/on-the-ecosystemic-network-of-saliva-in-healthy-young-adults
#20
Egija Zaura, Bernd W Brandt, Andrei Prodan, Maarten Joost Teixeira de Mattos, Sultan Imangaliyev, Jolanda Kool, Mark J Buijs, Ferry Lpw Jagers, Nienke L Hennequin-Hoenderdos, Dagmar E Slot, Elena A Nicu, Maxim D Lagerweij, Marleen M Janus, Marcela M Fernandez-Gutierrez, Evgeni Levin, Bastiaan P Krom, Henk S Brand, Enno Ci Veerman, Michiel Kleerebezem, Bruno G Loos, G A van der Weijden, Wim Crielaard, Bart Jf Keijser
A dysbiotic state is believed to be a key factor in the onset of oral disease. Although oral diseases have been studied for decades, our understanding of oral health, the boundaries of a healthy oral ecosystem and ecological shift toward dysbiosis is still limited. Here, we present the ecobiological heterogeneity of the salivary ecosystem and relations between the salivary microbiome, salivary metabolome and host-related biochemical salivary parameters in 268 healthy adults after overnight fasting. Gender-specific differences in the microbiome and metabolome were observed and were associated with salivary pH and dietary protein intake...
May 2017: ISME Journal
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