keyword
MENU ▼
Read by QxMD icon Read
search

Saliva biology

keyword
https://www.readbyqxmd.com/read/29674018/feasibility-of-a-handheld-near-infrared-device-for-the-qualitative-analysis-of-bloodstains
#1
Alvaro Varela Morillas, James Gooch, Nunzianda Frascione
One of the most common tasks in criminal investigation is to determine from which tissue source a biological fluid stain originates. As a result, there are many tests that are frequently used to determine if a stain is blood, semen or saliva by exploiting the properties of certain molecules present within the fluids themselves. These include chemical reagents such as the Kastle-Meyer or Acid Phosphatase tests, as well as other techniques like the use of alternative light sources. However, most of the tests currently available have some major drawbacks...
July 1, 2018: Talanta
https://www.readbyqxmd.com/read/29662892/revealing-the-amylase-interactome-in-whole-saliva-using-proteomic-approaches
#2
Karla Tonelli Bicalho Crosara, David Zuanazzi, Eduardo Buozi Moffa, Yizhi Xiao, Maria Aparecida de Andrade Moreira Machado, Walter Luiz Siqueira
Understanding proteins present in saliva and their function when isolated is not enough to describe their real role in the mouth. Due to protein-protein interactions, structural changes may occur in macromolecules leading to functional modulation or modification. Besides amylase's function in carbohydrate breakdown, amylase can delay proteolytic degradation of protein partners (e.g., histatin 1) when complexed. Due to its biochemical characteristics and high abundance in saliva, amylase probably interacts with several proteins acting as a biological carrier...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29652748/the-scintigraphic-biodistribution-and-histopathological-evaluation-of-the-effect-of-experimental-131i-administration-on-the-gastrointestinal-system-and-the-demonstration-of-the-na-i-symporter-by-immunohistochemistry-in-rats
#3
Rahsan Yilmaz, Nihat Yumusak, Murat Sadic, Hasan I Atilgan, Meliha Korkmaz, Faruk Bozkaya
OBJECTIVE: The aim of this study was to investigate histopathological changes and biodistribution of iodine-131 (I) in the gastrointestinal system (GIS) and also Na/I Symporter (NIS) presence by immunohistochemically in the experimental treatment of rats with radioactive iodine (RAI). MATERIALS AND METHODS: Rats were divided into experimental and control groups as random early group 2 (24 h), intermediate group 3 (3 weeks), and late period group 4 (3 months). Experimental groups were administered 100 MBq (∼3 mCi, 12 mCi/kg) by orogastric route with orogastric tube...
April 12, 2018: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/29627744/a-robust-and-versatile-mass-spectrometry-platform-for-comprehensive-assessment-of-the-thiol-redox-metabolome
#4
T R Sutton, M Minnion, F Barbarino, G Koster, B O Fernandez, A F Cumpstey, P Wischmann, M Madhani, M P Frenneaux, A D Postle, M M Cortese-Krott, M Feelisch
Several diseases are associated with perturbations in redox signaling and aberrant hydrogen sulfide metabolism, and numerous analytical methods exist for the measurement of the sulfur-containing species affected. However, uncertainty remains about their concentrations and speciation in cells/biofluids, perhaps in part due to differences in sample processing and detection principles. Using ultrahigh-performance liquid chromatography in combination with electrospray-ionization tandem mass spectrometry we here outline a specific and sensitive platform for the simultaneous measurement of 12 analytes, including total and free thiols, their disulfides and sulfide in complex biological matrices such as blood, saliva and urine...
February 19, 2018: Redox Biology
https://www.readbyqxmd.com/read/29611254/oxytocin-levels-in-saliva-correlate-better-than-plasma-levels-with-concentrations-in-the-cerebrospinal-fluid-of-patients-in-neurocritical-care
#5
Jan Martin, Simone M Kagerbauer, Jens Gempt, Armin Podtschaske, Alexander Hapfelmeier, Gerhard Schneider
In the converging fields of neuroendocrinology and behavioural neuroscience, the interaction between peripheral secretion and central release of oxytocin in humans has not yet been comprehensively assessed. As the human brain is not directly accessible and as the collection of human cerebrospinal fluid (CSF) usually requires invasive procedures, easier accessible compartments such as blood or saliva attract increasing attention. In this study, we prospectively determined oxytocin concentrations in the three compartments plasma, CSF and saliva of fifty critically ill patients with neurological and neurosurgical diseases...
April 3, 2018: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/29604544/reduced-heart-rate-variability-and-increased-saliva-cortisol-in-patients-with-tmd
#6
Suruedee Chinthakanan, Kittipong Laosuwan, Pattriyaporn Boonyawong, Sirinart Kumfu, Nipon Chattipakorn, Siriporn C Chattipakorn
Temporomandibular disorders (TMD) are the most common source of non-dental pain. The pathogenesis of TMD is multifactorial, involving biological, psychological and behavioral factors. Those factors are involved with alterations of the autonomic nervous system (ANS) and stressful conditions. Heart rate variability (HRV) has been used as a marker of ANS function. Increased cortisol level (a stress indicator), has been found in chronic pain. Therefore, the present study aimed to compare pain intensity, HRV, psychological factors, and salivary cortisol level between TMD patients and a control group...
March 23, 2018: Archives of Oral Biology
https://www.readbyqxmd.com/read/29596449/sequence-analysis-of-the-potato-aphid-macrosiphum-euphorbiae-transcriptome-identified-two-new-viruses
#7
Marcella A Teixeira, Noa Sela, Hagop S Atamian, Ergude Bao, Ritu Chaudhary, Jacob MacWilliams, Jiangman He, Sophie Mantelin, Thomas Girke, Isgouhi Kaloshian
The potato aphid, Macrosiphum euphorbiae, is an important agricultural pest that causes economic losses to potato and tomato production. To establish the transcriptome for this aphid, RNA-Seq libraries constructed from aphids maintained on tomato plants were used in Illumina sequencing generating 52.6 million 75-105 bp paired-end reads. The reads were assembled using Velvet/Oases software with SEED preprocessing resulting in 22,137 contigs with an N50 value of 2,003bp. After removal of contigs from tomato host origin, 20,254 contigs were annotated using BLASTx searches against the non-redundant protein database from the National Center for Biotechnology Information (NCBI) as well as IntereProScan...
2018: PloS One
https://www.readbyqxmd.com/read/29588324/wisconsin-microbiome-study-a-cross-sectional-investigation-of-dietary-fibre-microbiome-composition-and-antibiotic-resistant-organisms-rationale-and-methods
#8
Shoshannah Eggers, Kristen Mc Malecki, Paul Peppard, Julie Mares, Daniel Shirley, Sanjay K Shukla, Keith Poulsen, Ronald Gangnon, Megan Duster, Ashley Kates, Garret Suen, Ajay K Sethi, Nasia Safdar
INTRODUCTION: Prevention of multidrug-resistant organism (MDRO) infections, such as those caused by methicillin-resistant Staphylococcus aureus , vancomycin-resistant enterococci, fluoroquinolone-resistant Gram-negative bacteria and Clostridium difficile is crucial. Evidence suggests that dietary fibre increases gut microbial diversity, which may help prevent colonisation and subsequent infection by MDROs. The aim of the Winning the War on Antibiotic Resistance (WARRIOR) project is to examine associations of dietary fibre consumption with the composition of the gut microbiota and gut colonisation by MDROs...
March 27, 2018: BMJ Open
https://www.readbyqxmd.com/read/29579379/an-mrm-tandem-mass-spectrometry-approach-for-the-identification-of-biological-fluids-on-crime-scene-investigations
#9
Anna Illiano, Valentina Arpino, Gabriella Pinto, Andrea Berti, Vincenzo Verdoliva, Giuseppe Peluso, Pietro Pucci, Angela Amoresano
Knowledge of the nature of biofluids at a crime scene is just as important as DNA test to link the nature of the biofluid, the criminal act and the dynamics of the crime. Identification of methods currently used for each biological fluid (blood, semen, saliva, urine) suffer from several limitations including instability of assayed biomolecules, and low selectivity and specificity; as an example of the latter issue, it is not possible to discriminate between alpha-amylase 1 (present in saliva) and alpha-amylase 2 (present in semen and vaginal secretion...
March 26, 2018: Analytical Chemistry
https://www.readbyqxmd.com/read/29565473/evaluation-of-salivary-surface-tension-in-a-cohort-of-young-healthy-adults
#10
P L Foglio-Bonda, E Laguini, C Davoli, F Pattarino, A Foglio-Bonda
OBJECTIVE: To determine salivary pH, flow rate (FR) and surface tension (γs) in a cohort of 30 healthy young adults. To acquire cohort biological independent variables (age, gender, weight, height, medications, smoking, pathologies, and allergies) and to correlate them with pH, FR and γs obtained values. Evaluate the possible variation of the γs values during the time after the withdrawal and the influence of the operational abilities of the experimenting operators. Evaluate the relationship between γs, pH and FR  and the dependence between pH and FR...
March 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29563426/a-review-of-the-common-models-used-in-mechanistic-studies-on-demineralization-remineralization-for-cariology-research
#11
REVIEW
Ollie Yiru Yu, Irene Shuping Zhao, May Lei Mei, Edward Chin-Man Lo, Chun-Hung Chu
Mechanistic studies on demineralization-remineralization play a critical role in investigating caries pathogenicity, testing effects of new caries prevention methods, and developing new caries-preventing products. Simulating the cariogenic challenges in the mouth, various demineralization-remineralization models have been used for cariology research. This review aimed to provide an overview of the common mechanistic studies on demineralization-remineralization for cariology research in recent literature. Most mechanistic studies were in vitro studies ( n = 294, 84%) among the 350 cariology studies indexed in the Web of Science from 2014 to 2016...
June 18, 2017: Dentistry journal
https://www.readbyqxmd.com/read/29558827/choosing-fighting-competitors-among-men-testosterone-personality-and-motivations
#12
Javier I Borráz-León, Ana Lilia Cerda-Molina, Markus J Rantala, Lilian Mayagoitia-Novales
Higher testosterone levels have been positively related to a variety of social behaviors and personality traits associated with intrasexual competition. The aim of this study was to evaluate the role of testosterone levels and personality traits such as aggressiveness, competitiveness, and self-esteem on the task of choosing a fighting competitor (a rival) with or without a motivation to fight. In Study 1, a group of 119 men participated in a task for choosing a rival through pictures of men with high-dominant masculinity versus low-dominant masculinity...
January 2018: Evolutionary Psychology: An International Journal of Evolutionary Approaches to Psychology and Behavior
https://www.readbyqxmd.com/read/29558726/detection-of-salivary-protein-biomarkers-of-saliva-secretion-disorder-in-a-primary-sj%C3%A3-gren-syndrome-murine-model
#13
Peisheng Liang, Wangyong Zhu, Tianjun Lan, Qian Tao
Saliva secretion disorder is one of the most common symptoms in primary Sjögren syndrome (pSS). Salivary biomarkers related to saliva secretion disorder were identified in a pSS murine model, NOD/ShiLtJ mouse, using differential proteomic analysis. Candidate biomarkers were screened with Kyoto Encyclopedia of Genes and Genomes pathway analysis and validated in saliva and salivary glands by western blotting and immunohistochemistry (IHC). Biological functions were detected using ingenuity pathway analysis (IPA)...
March 12, 2018: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/29555911/ixonnexin-from-tick-saliva-promotes-fibrinolysis-by-interacting-with-plasminogen-and-tissue-type-plasminogen-activator-and-prevents-arterial-thrombosis
#14
Teresa C Assumpção, Daniella M Mizurini, Dongying Ma, Robson Q Monteiro, Sydney Ahlstedt, Morayma Reyes, Michail Kotsyfakis, Thomas N Mather, John F Andersen, Jan Lukszo, José M C Ribeiro, Ivo M B Francischetti
Tick saliva is a rich source of modulators of vascular biology. We have characterized Ixonnexin, a member of the "Basic-tail" family of salivary proteins from the tick Ixodes scapularis. Ixonnexin is a 104 residues (11.8 KDa), non-enzymatic basic protein which contains 3 disulfide bonds and a C-terminal rich in lysine. It is homologous to SALP14, a tick salivary FXa anticoagulant. Ixonnexin was produced by ligation of synthesized fragments (51-104) and (1-50) followed by folding. Ixonnexin, like SALP14, interacts with FXa...
March 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29550792/artificial-saliva-and-its-use-in-biological-experiments
#15
J J Pytko-Polonczyk, A Jakubik, A Przeklasa-Bierowiec, B Muszynska
Examination of dental materials and their properties at the initial stage of the digestive process requires the development of conditions that mimic the environment of the oral cavity. One of the main components of this area is saliva, where many reactions occur under natural conditions. Human saliva is an important physiological fluid that is essential for the maintenance of good oral health and of the entire human body; it is the place where digestion begins and thus contributes to the supply of those nutrients and health-promoting substances that are essential to the body but may also cause release of potential toxins...
December 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29549744/messenger-rna-biomarker-signatures-for-forensic-body-fluid-identification-revealed-by-targeted-rna-sequencing
#16
E Hanson, S Ingold, C Haas, J Ballantyne
The recovery of a DNA profile from the perpetrator or victim in criminal investigations can provide valuable 'source level' information for investigators. However, a DNA profile does not reveal the circumstances by which biological material was transferred. Some contextual information can be obtained by a determination of the tissue or fluid source of origin of the biological material as it is potentially indicative of some behavioral activity on behalf of the individual that resulted in its transfer from the body...
March 6, 2018: Forensic Science International. Genetics
https://www.readbyqxmd.com/read/29545097/towards-a-future-molecular-diagnosis-of-autism-recent-advances-in-biomarkers-research-from-saliva-samples
#17
REVIEW
Adrian Galiana-Simal, Victoria Muñoz-Martinez, Paloma Calero-Bueno, Maria Vela-Romero, Luis Beato-Fernandez
Autism spectrum disorder diagnosis is currently based on clinical observations and behavioral evaluations exclusively, without any biological determination. Molecular biomarkers are usually obtained from biological fluids, such as blood or urine, generally through invasive and uncomfortable procedures. Patients with autism are characterized by sensory reactivity and behavioral difficulties which make sample collection problematic. Saliva has emerged as a feasible alternative to obtain relevant biological information and is especially indicated in the case of children with autism due to its painless and noninvasive sampling characteristics...
March 12, 2018: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/29536449/metabolomics-a-high-throughput-platform-for-metabolite-profile-exploration
#18
Jing Cheng, Wenxian Lan, Guangyong Zheng, Xianfu Gao
Metabolomics aims to quantitatively measure small-molecule metabolites in biological samples, such as bodily fluids (e.g., urine, blood, and saliva), tissues, and breathe exhalation, which reflects metabolic responses of a living system to pathophysiological stimuli or genetic modification. In the past decade, metabolomics has made notable progresses in providing useful systematic insights into the underlying mechanisms and offering potential biomarkers of many diseases. Metabolomics is a complementary manner of genomics and transcriptomics, and bridges the gap between genotype and phenotype, which reflects the functional output of a biological system interplaying with environmental factors...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29525585/hypothalamus-pituitary-adrenal-axis-activity-and-cognitive-functioning-in-older-adults
#19
Nicole C M Korten, Brenda W J H Penninx, Didi Rhebergen, Dorly J H Deeg, Hannie C Comijs
Inconsistent results are found in the involvement of the Hypothalamus-Pituitary-Adrenal (HPA)-axis in cognitive functioning. This study examined the association between various saliva cortisol measures (the 1-h awakening cortisol, evening cortisol, diurnal change, and cortisol suppression) and cognitive functioning (episodic memory, processing speed, interference control, and working memory). Participants were older adults, between 60 and 93 years with (N = 328) and without (N = 119) a depressive disorder from the Netherlands Study of Depression in Older adults...
December 29, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29518453/polyomavirus-microrna-in-saliva-reveals-persistent-infectious-status-in-the-oral-cavity
#20
Francesco Martelli, Jessica Mencarini, Arianna Rocca, Nunzia Della Malva, Dario Bartolozzi, Simone Giannecchini
Current evidence suggests that Polyomavirus (PyV) microRNAs (miRNAs) circulating in biological fluids may be relevant to understanding viral persistence. Here, the expression of polyomavirus BKPyV, JCPyV, MCPyV and SV40 miRNAs in saliva was investigated to evaluate PyV prevalence/persistence in the oral cavity. PyV-DNA status and PyV-miRNA expression was examined in paired saliva and plasma samples of 100 HIV-infected patients and of 50 healthy subjects using digital droplet PCR and PyV-miRNA-5p stem-loop RT-PCR...
March 5, 2018: Virus Research
keyword
keyword
48992
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"