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Salivary biomarkers

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https://www.readbyqxmd.com/read/28723144/inflection-point-of-the-localized-surface-plasmon-resonance-peak-a-general-method-to-improve-the-sensitivity
#1
Peng Chen, Nhung Thi Tran, Xinglin Wen, Qihua Xiong, Bo Liedberg
The shift of the localized surface plasmon resonance (LSPR) spectrum is widely used in bio- and chemical sensing. Traditionally, the shift is monitored at the peak maximum of the extinction spectrum. We demonstrate that the inflection point at the long wavelength side of the peak maximum shows better refractive index sensitivity than the peak maximum. A consistent improvement in bulk refractive index sensitivity of 18-55% is observed for six different nanoparticles such as spherical particles of different sizes, nanostar and nanorods with different aspect ratios...
February 24, 2017: ACS Sensors
https://www.readbyqxmd.com/read/28716368/surgeons-and-surgical-trainees-acute-stress-in-real-operations-or-simulation-a-systematic-review
#2
REVIEW
Konstantinos Georgiou, Andreas Larentzakis, Athanasios G Papavassiliou
BACKGROUND AND PURPOSE: Acute stress in surgery is ubiquitous and has an immediate impact on surgical performance and patient safety. Surgeons react with several coping strategies; however, they recognise the necessity of formal stress management training. Thus, stress assessment is a direct need. Surgical simulation is a validated standardised training milieu designed to replicate real-life situations. It replicates stress, prevents biases, and provides objective metrics. The complexity of stress mechanisms makes stress measurement difficult to quantify and interpret...
July 14, 2017: Surgeon: Journal of the Royal Colleges of Surgeons of Edinburgh and Ireland
https://www.readbyqxmd.com/read/28712412/the-relationship-between-levels-of-salivary-and-serum-interleukin-6-and-oral-lichen-planus-a-systematic-review-and-meta-analysis
#3
REVIEW
Jinglong Liu, Quan Shi, Shuo Yang, Qianxin Wang, Juan Xu, Bin Guo
BACKGROUND: The relationship between levels of salivary and serum interleukin (IL)-6 and oral lichen planus (OLP) is not understood fully. The authors conducted a systematic review and meta-analysis to compare levels of salivary and serum IL-6 among people with OLP and healthy control participants. METHODS: The authors searched the literature for studies whose investigators had evaluated the relationships between IL-6 and OLP before treatment. The authors used meta-analysis to compare the standardized mean differences (SMD) of the levels of salivary and serum IL-6 between people who had OLP and people who did not have OLP and between patients with erosive OLP and patients with nonerosive OLP...
July 13, 2017: Journal of the American Dental Association
https://www.readbyqxmd.com/read/28701054/diagnostic-and-treatment-workup-for-igg4-related-disease
#4
Mary Abraham, Arezou Khosroshahi
IgG4-Related Disease is a newly recognized condition which is increasingly diagnosed by practitioners due to improvement in clinical awareness. Men and women have been found to be affected by this disease in various organs, more commonly with involvement of the salivary and lacrimal glands as well as pancreas and liver. Areas Covered: The diagnosis and management of this condition remain challenging as biomarkers and therapies are being investigated. Hallmark features on histology are still the gold standard for confirmation of diagnosis, whereas serum IgG4 level has been shown to be neither necessary nor sufficient for the diagnosis...
July 12, 2017: Expert Review of Clinical Immunology
https://www.readbyqxmd.com/read/28694011/the-relationship-between-salivary-c-reactive-protein-and-cognitive-function-in-children-aged-11-14years-does-psychopathology-have-a-moderating-effect
#5
Alexis E Cullen, Ben M Tappin, Patricia A Zunszain, Hannah Dickson, Ruth E Roberts, Naghmeh Nikkheslat, Mizan Khondoker, Carmine M Pariante, Helen L Fisher, Kristin R Laurens
Elevated C-reactive protein (CRP), a non-specific biomarker of systemic bodily inflammation, has been associated with more pronounced cognitive impairments in adults with psychiatric disorders, particularly in the domains of memory and executive function. Whether this association is present in early life (i.e., the time at which the cognitive impairments that characterise these disorders become evident), and is specific to those with emerging psychiatric disorders, has yet to be investigated. To this end, we examined the association between salivary CRP and cognitive function in children aged 11-14years and explored the moderating effect of psychopathology...
July 8, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28691886/salivary-levels-of-nlrp3-inflammasome-related-proteins-as-potential-biomarkers-of-periodontal-clinical-status
#6
Diana M Isaza-Guzmán, Verónica M Medina-Piedrahíta, Carolina Gutiérrez-Henao, Sergio I Tobón-Arroyave
BACKGROUND: Emerging evidence suggests that the activation of inflammasomes plays a central mechanism in the pathogenesis of periodontitis. This study aimed to compare the salivary levels of nod-like receptor family pyrin domain containing protein 3 (NLRP3), apoptosis-associated speck-like protein containing a caspase recruitment domain (ASC), cysteine aspartase-1 (caspase-1), and interleukin-1 beta (IL-1β) from individuals with aggressive (AgP) or chronic periodontitis (CP) and healthy controls (HC), as well as elucidate its association with the periodontal clinical status...
July 10, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28681595/assessment-of-the-therapeutic-potential-of-persimmon-leaf-extract-on-prediabetic-subjects
#7
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 6, 2017: Molecules and Cells
https://www.readbyqxmd.com/read/28677748/salivary-mir-93-and-mir-200a-as-post-radiotherapy-biomarkers-in-head-and-neck-squamous-cell-carcinoma
#8
Thomas Greither, Freya Vorwerk, Matthias Kappler, Matthias Bache, Helge Taubert, Thomas Kuhnt, Jeremias Hey, Alexander W Eckert
Head and neck squamous cell carcinoma is the 6th most malignant tumor entity worldwide and has exhibited a 5-year mortality of approximately 50% for the last fifty years. For the therapy monitoring and successful management of this tumor entity new and easily accessible biomarkers are greatly needed. The aim of the study was to determine whether and to what extent microRNAs, a class of small regulatory RNAs, are detectable in saliva post-radiation therapy. The expression and feasibility as therapy monitoring marker of the microRNAs were analyzed by RT-qPCR in 83 saliva samples from 33 patients collected at several time points pre-, during and post-radiotherapy treatment...
June 28, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28677648/advancing-point-of-care-poc-testing-using-human-saliva-as-liquid-biopsy
#9
REVIEW
Rabia Sannam Khan, Zohaib Khurshid, Faris Yahya Ibrahim Asiri
Salivary diagnostics is an emerging field for the encroachment of point of care technology (PoCT). The necessity of the development of point-of-care (PoC) technology, the potential of saliva, identification and validation of biomarkers through salivary diagnostic toolboxes, and a broad overview of emerging technologies is discussed in this review. Furthermore, novel advanced techniques incorporated in devices for the early detection and diagnosis of several oral and systemic diseases in a non-invasive, easily-monitored, less time consuming, and in a personalised way is explicated...
July 4, 2017: Diagnostics
https://www.readbyqxmd.com/read/28668836/microrna-profiling-and-target-genes-related-to-metastasis-of-salivary-adenoid-cystic-carcinoma
#10
Xin Feng, Kyle Matsuo, Tan Zhang, Yunping Hu, Ashley C Mays, James D Browne, Xiaobo Zhou, Christopher A Sullivan
BACKGROUND/AIM: Perineural invasion and distant metastasis lead to a poor prognosis of adenoid cystic carcinoma and there is no effective therapy available. MicroRNAs (miRNAs) are small non-coding RNAs that regulate target gene expression, which can be biomarkers or therapeutic targets for certain cancer types. We aimed to identify miRNAs and their target genes possibly involved in metastasis of salivary gland adenoid cystic carcinoma (SACC). MATERIALS AND METHODS: Using Nanostring nCounter analysis, we examined miRNA expression in two SACC cell lines: SACC-83 and SACC-LM, with low and high lung metastasis rates, respectively...
July 2017: Anticancer Research
https://www.readbyqxmd.com/read/28663136/can-salivary-testosterone-and-cortisol-reactivity-to-a-mid-week-stress-test-discriminate-a-match-outcome-during-international-rugby-union-competition
#11
Blair T Crewther, Neil Potts, Liam P Kilduff, Scott Drawer, Christian J Cook
OBJECTIVES: Evidence suggests that stress-induced changes in testosterone and cortisol are related to future competitive behaviours and team-sport outcomes. Therefore, we examined whether salivary testosterone and cortisol reactivity to a mid-week stress test can discriminate a match outcome in international rugby union competition. DESIGN: Single group, quasi-experimental design with repeated measures. METHOD: Thirty-three male rugby players completed a standardised stress test three or four days before seven international matches...
June 2, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28660183/quantitative-lateral-flow-assays-for-salivary-biomarker-assessment-a-review
#12
REVIEW
Olga Miočević, Craig R Cole, Mary J Laughlin, Robert L Buck, Paul D Slowey, Elizabeth A Shirtcliff
Saliva is an emerging biofluid with a significant number of applications in use across research and clinical settings. The present paper explores the reasons why saliva has grown in popularity in recent years, balancing both the potential strengths and weaknesses of this biofluid. Focusing on reasons why saliva is different from other common biological fluids such as blood, urine, or tears, we review how saliva is easily obtained, with minimal risk to the donor, and reduced costs for collection, transportation, and analysis...
2017: Frontiers in Public Health
https://www.readbyqxmd.com/read/28654016/salivary-immune-and-metabolic-marker-analysis-simma-a-diagnostic-test-to-predict-caries-risk
#13
Alex Mira, Alejandro Artacho, Anny Camelo-Castillo, Sandra Garcia-Esteban, Aurea Simon-Soro
By using ELISA and colorimetric tests, we have measured 25 compounds in individuals with and without dental caries at different time points of dental biofilm formation and time of the day. We find that some compounds appear to be affected by circadian rhythms, others by dental plaque maturity, and others show constant values during a 24 h period. Using univariate analysis and cross-validation techniques, we have selected six components measured at specific time points that maximize the diagnostic separation of health and disease conditions...
June 27, 2017: Diagnostics
https://www.readbyqxmd.com/read/28653927/detection-of-interleukins-6-and-8-in-saliva-as-potential-biomarkers-of-oral-pre-malignant-lesion-and-oral-carcinoma-a-breakthrough-in-salivary-diagnostics-in-pakistan
#14
Iqbal A Muhammad Khyani, Masood A Qureshi, Talat Mirza, M Umar Farooq
Oral cancer is at rise in our population due to increasing use of areca nut (Betel nut) with or without tobacco. It is the second frequent malignant tumour for both the gender in Pakistan. This non-interventional case control study was carried out with the aim to explore saliva as diagnostic medium for detecting interleukins (IL) 6 and 8 as biomarkers of pre-malignant lesions (PML) and oral carcinoma. Total 105 subjects were recruited and were divided into three groups "A", "B" and "C" each comprising of 35 subjects...
May 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28652780/overexpression-of-pd-l2-is-associated-with-shorter-relapse-free-survival-in-patients-with-malignant-salivary-gland-tumors
#15
Hyeyoon Chang, Jung Sun Kim, Yoon Ji Choi, Jae-Gu Cho, Jeong-Soo Woo, Aeree Kim, Jun Suk Kim, Eun Joo Kang
OBJECTIVES: PD-1/PD-L1 and CTLA-4 have been investigated and are thought to play an important role in tumor evasion. This study aimed to investigate expression patterns of immune-related molecules, and their clinical impacts in malignant salivary gland tumors. PATIENTS AND METHODS: We performed immunohistochemical staining for PD-L1, PD-L2, CTLA-4, PD-1, and CD8(+) tumor-infiltrating lymphocytes in 70 malignant salivary gland tumors. Protein expression was assessed by H-score by multiplying the staining intensity by the percentage of cells with positive staining...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28649597/early-diagnosis-of-mild-cognitive-impairment-and-alzheimer-s-disease-based-on-salivary-lactoferrin
#16
Eva Carro, Fernando Bartolomé, Félix Bermejo-Pareja, Alberto Villarejo-Galende, José Antonio Molina, Pablo Ortiz, Miguel Calero, Alberto Rabano, José Luis Cantero, Gorka Orive
INTRODUCTION: The Alzheimer's disease (AD) process is likely initiated many years before clinical onset. Biomarkers of preclinical disease are critical for the development of disease-modifying or even preventative therapies. Current biomarkers for early disease, including cerebrospinal fluid tau and amyloid β (Aβ) levels, structural and functional magnetic resonance imaging, and the use of brain amyloid imaging, are limited because they are very invasive or expensive. Noninvasive biomarkers may be a more accessible alternative, but none can currently detect preclinical AD with the required sensitivity and specificity...
2017: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/28629254/the-yin-and-yang-of-the-adrenal-and-gonadal-systems-in-elite-military-men
#17
Marcus K Taylor, Lisa M Hernández, Shiloah A Kviatkovsky, Matthew R Schoenherr, Michael S Stone, Paul Sargent
We recently established daily, free-living profiles of the adrenal hormone cortisol, the (primarily adrenal) anabolic precursor dehydroepiandrosterone (DHEA) and the (primarily gonadal) anabolic hormone testosterone in elite military men. A prevailing view is that adrenal and gonadal systems reciprocally modulate each other; however, recent paradigm shifts prompted the characterization of these systems as parallel, cooperative processes (i.e. the "positive coupling" hypothesis). In this study, we tested the positive coupling hypothesis in 57 elite military men by evaluating associations between adrenal and gonadal biomarkers across the day...
May 2017: Stress: the International Journal on the Biology of Stress
https://www.readbyqxmd.com/read/28628793/the-reliability-concurrent-validity-and-association-with-salivary-oxytocin-of-the-self-report-version-of-the-inventory-of-callous-unemotional-traits-in-adolescents-with-conduct-disorder
#18
Tomer Levy, Alan Apter, Amir Djalovski, Miriam Peskin, Silvana Fennig, Galia Gat-Yablonski, Meytal Bar-Maisels, Katy Borodkin, Yuval Bloch
The present study evaluated the self-report version of the Inventory of Callous-Unemotional Traits (ICU-SR) in terms of reliability, concurrent validity, and correlation with salivary oxytocin levels, a potential biomarker of CU traits. 67 socially at-risk male adolescents (mean 16.2 years) completed the ICU-SR, ICU teacher-version (ICU-TR), Strengths and Difficulties Questionnaire, and their medical files were coded for previous antisocial acts using Brown-Goodwin Lifetime Aggression Scale. Salivary samples were assayed for oxytocin...
June 12, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28627308/hormonal-and-neuromuscular-responses-to-breastfeeding-a-pilot-study
#19
Madalynn Neu, Zhaoxing Pan, Ashley Haight, Karen Fehringer, Katrina Maluf
OBJECTIVES: Difficult breastfeeding in the first weeks after birth may result in muscle tension in infants and activation of the maternal hypothalamic-pituitary-adrenal (HPA) axis and sympathetic nervous system (SNS). Our primary objective was to examine the feasibility of collecting neuroendocrine markers of maternal HPA axis and SNS activation (salivary cortisol and α-amylase [sAA]) and electromyographic (EMG) markers of infant distress during feeding in the first 2 weeks after birth...
July 2017: Biological Research for Nursing
https://www.readbyqxmd.com/read/28623401/biomarkers-in-the-assessment-of-oral-mucositis-in-head-and-neck-cancer-patients-a-systematic-review-and-meta-analysis
#20
REVIEW
Ana Gabriela Costa Normando, Camila Lopes Rocha, Isabela Porto de Toledo, Paulo Tadeu de Souza Figueiredo, Paula Elaine Diniz Dos Reis, Graziela De Luca Canto, Eliete Neves Silva Guerra
PURPOSE: The aim of this study was to evaluate the capability of biomarkers to predict the risk of oral mucositis in head and neck cancer patients, as well as to assess the correlation between these biomarkers and the severity of mucositis. METHODS: The search was performed at LILACS, PubMed, Science Direct, Scopus, and Web of Science. A search of the gray literature was performed on Google Scholar, OpenGrey, and ProQuest. The methodological quality of the included studies was assessed using the Meta-Analysis of Statistics Assessment and Review Instrument (MAStARI) tool, and the evidence quality was assessed by the Grading of Recommendation, Assessment, Development, and Evaluation (GRADE) system...
June 16, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
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