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salivary amylase

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https://www.readbyqxmd.com/read/28427348/comparative-genomics-and-evolution-of-the-amylase-binding-proteins-of-oral-streptococci
#1
Elaine M Haase, Yurong Kou, Amarpreet Sabharwal, Yu-Chieh Liao, Tianying Lan, Charlotte Lindqvist, Frank A Scannapieco
BACKGROUND: Successful commensal bacteria have evolved to maintain colonization in challenging environments. The oral viridans streptococci are pioneer colonizers of dental plaque biofilm. Some of these bacteria have adapted to life in the oral cavity by binding salivary α-amylase, which hydrolyzes dietary starch, thus providing a source of nutrition. Oral streptococcal species bind α-amylase by expressing a variety of amylase-binding proteins (ABPs). Here we determine the genotypic basis of amylase binding where proteins of diverse size and function share a common phenotype...
April 20, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28411466/capillary-isoelectric-focusing-with-whole-column-imaging-detection-icief-a-new-approach-to-the-characterization-and-quantification-of-salivary-%C3%AE-amylase
#2
Atefeh S Zarabadi, Tiemin Huang, John G Mielke
Saliva is an easily collected biological fluid with potentially important diagnostic value. While gel electrophoresis is generally used for salivary analysis, we employed the capillary isoelectric focusing technique to allow for a rapid, automated mode of electrophoresis. Capillary isoelectric focusing coupled with UV whole column imaging detection (iCIEF) was used to develop a robust protocol to characterize salivary α-amylase collected from various glands. Notably, three sample preparation methods were examined: ultrafiltration, gel-filtration, and starch affinity interaction with salivary amylase...
March 30, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28408928/salivary-alpha-amylase-enzyme-psychological-disorders-and-life-quality-in-patients-with-recurrent-aphthous-stomatitis
#3
Juliana Andrade Cardoso, André Avelino Dos Santos Junior, Maria Lucia Tiellet Nunes, Maria Antonia Zancanaro de Figueiredo, Karen Cherubini, Fernanda Gonçalves Salum
Objective. The aim of this study was to evaluate stress, anxiety, and salivary alpha-amylase (SAA) activity in patients with recurrent aphthous stomatitis (RAS). The impact of this disease on the life quality was also evaluated. Design. Twenty-two patients with RAS and controls, matched by sex and age, were selected. Stress and anxiety were assessed using Lipp's Inventory of Stress Symptoms and Beck Anxiety Inventory. Life quality was assessed through the World Health Organization Quality of Life-bref (WHOQOL-BREF) and the Oral Health Impact Profile-14 (OHIP-14)...
2017: International Journal of Dentistry
https://www.readbyqxmd.com/read/28406803/investigating-clinical-benefits-of-a-novel-sleep-focused-mind-body-program-on-gulf-war-illness-gwi-symptoms-a-randomized-controlled-trial
#4
Yoshio Nakamura, David L Lipschitz, Gary W Donaldson, Yuri Kida, Samuel Williams, Richard Landward, Don Glover, Gavin West, Ashok Tuteja
OBJECTIVE: Mind-Body Bridging (MBB) has been shown to be effective for improving disturbed sleep. In this prospective randomized-controlled trial, we evaluated the efficacy of sleep-focused MBB compared with sleep education control (SED) for improving sleep in previously deployed Gulf War Veterans. METHODS: US military service members with sleep and physical health complaints who were deployed in 1990-1991 were randomized to receive MBB (n=33) or SED (n=27) between 2012 and 2015, each comprised three weekly sessions...
April 12, 2017: Psychosomatic Medicine
https://www.readbyqxmd.com/read/28406540/salivary-chromogranin-a-levels-correlate-with-disease-severity-but-do-not-reflect-anxiety-or-personality-of-adult-patients-with-atopic-dermatitis
#5
Sakae Kaneko, Lijuan Liu, Takeyasu Kakamu, Masako Minami-Hori, Eishin Morita
Stress-induced scratching is an issue in patients with adult atopic dermatitis (AD). Although itching and stress are believed to be intimately related, no objective index is available; therefore, most evaluations are subjective. Using saliva, which is easily collected, we investigated the degree to which AD severity and patient stress levels are reflected in stress proteins in the saliva. Here, we evaluated the severity (Scoring Atopic Dermatitis [SCORAD] score), stress (State-Trait Anxiety Index [STAI] score), personality (Tokyo University Egogram [TEG] II score) and quality of life (Dermatology Life Quality Index [DLQI] score) of 51 patients with AD who were examined in the Department of Dermatology of Shimane University between April and December 2015...
April 13, 2017: Journal of Dermatology
https://www.readbyqxmd.com/read/28405465/effect-of-the-needle-free-intra-dermal-application-of-liquids-vaccination-on-the-welfare-of-pregnant-sows
#6
Déborah Temple, Damián Escribano, Marta Jiménez, Eva Mainau, José J Cerón, Xavier Manteca
BACKGROUND: In commercial pig production, sows are often vaccinated several times per gestation period, resulting in reduced welfare. This preliminary experiment investigated whether the needle-free IDAL vaccinator improves welfare through reduction of stress markers, improvement of behavioural and health parameters compared to traditional needle-syringe method. RESULTS: Two treatments (IDAL and NEEDLE) in 6 replicate pens of gestating sows (15 sows per pen) were evaluated using Porcilis® PRRS...
2017: Porcine Health Management
https://www.readbyqxmd.com/read/28381767/volatile-components-of-the-essential-oil-of-artemisia-montana-and-their-sedative-effects
#7
Kento Kunihiro, Takao Myoda, Noriaki Tajima, Kotaro Gotoh, Tai Kaneshima, Takao Someya, Kazuki Toeda, Takane Fujimori, Makoto Nishizawa
The sedative effects of volatile components in the essential oil of Artemisia montana ("Yomogi") were investigated and measured using gas chromatography-mass spectrometry (GC-MS). Major components identified included 1,8-cineol, camphor, borneol, α-piperitone, and caryophyllene oxide. Among them, 1,8-cineol exhibited the highest flavor dilution (FD) value in an aroma extract dilution analysis (AEDA), followed by borneol, o-cymene, β-thujone, and bornyl acetate. The sedative effects of yomogi oil aroma were evaluated by sensory testing, analysis of salivary α-amylase activity, and measurement of relative fluctuation of oxygenated hemoglobin concentration in the brain using near-infrared spectroscopy (NIRS)...
April 4, 2017: Journal of Oleo Science
https://www.readbyqxmd.com/read/28374630/cumulative-risk-and-physiological-stress-responses-in-african-american-adolescents
#8
Wendy Kliewer, Jo Lynne W Robins
OBJECTIVE: To investigate associations between components of cumulative risk (CR) and physiological stress responses in African American adolescents and evaluate emotion regulation as a mediator and sex as a moderator of these associations. METHODS: Cortisol and salivary alpha amylase (sAA) were collected in adolescents ( N = 205; 55% female; 12.1 ± 1.6 years at baseline) as part of a longitudinal study of stress and adjustment in families. CR was assessed at baseline and emotion regulation was assessed at baseline and 2 years later at Wave 3 (W3) using caregiver and adolescent reports...
January 1, 2017: Biological Research for Nursing
https://www.readbyqxmd.com/read/28363118/gender-differences-in-automatic-thoughts-and-cortisol-and-alpha-amylase-responses-to-acute-psychosocial-stress-in-patients-with-obsessive-compulsive-personality-disorder
#9
Masayuki Kanehisa, Chiwa Kawashima, Mari Nakanishi, Kana Okamoto, Harumi Oshita, Koji Masuda, Fuku Takita, Toshihiko Izumi, Ayako Inoue, Yoshinobu Ishitobi, Haruka Higuma, Taiga Ninomiya, Jotaro Akiyoshi
INTRODUCTION: Obsessive-compulsive personality disorder (OCPD) has a pervasive pattern of preoccupation with orderliness, perfection, and mental and interpersonal control at the expense of flexibility, openness, and efficiency. The aims of the present study were to explore the relationship between OCPD and psychological stress and psychological tests. METHODS: We evaluated 63 OCPD patients and 107 healthy controls (HCs). We collected saliva samples from patients and controls before and after a social stress procedure, the Trier Social Stress Test (TSST), to measure the concentrations of salivary alpha-amylase (sAA) and salivary cortisol...
March 28, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28337878/salivary-cortisol-alpha-amylase-and-immunoglobulin-a-responses-to-a-morning-session-of-basketball-or-volleyball-training-in-boys-aged-14-18-years
#10
A Bruzda-Zwiech, M Konieczka, A Hilt, M Daszkowska, J Grzegorczyk, J Szczepańska
This study investigates whether a single session of routine morning basketball or volleyball training affects saliva levels of cortisol, alpha-amylase (sAA) and secretory immunoglobulin A (sIgA) in boys aged 14–18 years. Twenty-nine boys who participate in basketball or volleyball training, recruited from the Marcin Gortat’s Athletic Championship School in Lodz, were enrolled in the study. The 90-minute routine exercise program included 15 minutes of warm-up followed by basketball or volleyball practice. Unstimulated saliva samples were collected prior to and immediately after the exercise, and were analysed using ELISA...
January 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28324703/arousal-amplifies-biased-competition-between-high-and-low-priority-memories-more-in-women-than-in-men-the-role-of-elevated-noradrenergic-activity
#11
David Clewett, Michiko Sakaki, Ringo Huang, Shawn E Nielsen, Mara Mather
Recent findings indicate that emotional arousal can enhance memory consolidation of goal-relevant stimuli while impairing it for irrelevant stimuli. According to one recent model, these goal-dependent memory tradeoffs are driven by arousal-induced release of norepinephrine (NE), which amplifies neural gain in target sensory and memory processing brain regions. Past work also shows that ovarian hormones modulate activity in the same regions thought to support NE's effects on memory, such as the amygdala, suggesting that men and women may be differentially susceptible to arousal's dual effects on episodic memory...
February 24, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28322987/an-experimental-examination-of-the-effort-reward-imbalance-model-of-occupational-stress-increased-financial-reward-is-related-to-reduced-stress-physiology
#12
Kathleen Landolt, Emma O'Donnell, Agnes Hazi, Nico Dragano, Bradley J Wright
Effort-reward imbalance in the workplace is linked to a variety of negative health and organisational outcomes, but it has rarely been assessed experimentally. We manipulated reward (while keeping effort constant) in a within-subjects design with female participants (N=60) who were randomly assigned to high and standard reward conditions within a simulated office environment. Self-report, behavioural (task performance), and physiological (heart rate variability, salivary alpha amylase) measures assessed the impact of increased financial reward...
March 16, 2017: Biological Psychology
https://www.readbyqxmd.com/read/28322910/long-term-stability-of-diurnal-salivary-cortisol-and-alpha-amylase-secretion-patterns
#13
Nadine Skoluda, Roberto La Marca, Mario Gollwitzer, Andreas Müller, Heribert Limm, Birgitt Marten-Mittag, Harald Gündel, Peter Angerer, Urs M Nater
This study aimed to investigate long-term stability and variability of diurnal cortisol and alpha-amylase patterns. Diurnal cortisol and alpha-amylase secretion patterns were assessed on a single workday with three waves of measurement across a total time period of 24months in 189 participants. Separate hierarchical linear models were analyzed, with and without a number of potential predictor variables (age, BMI, smoking, chronic stress, stress reactivity). While low long-term stability was found in diurnal cortisol, the stability of diurnal alpha-amylase was moderate across the time period of 24months...
March 18, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28315910/effect-of-selenium-supplementation-for-protection-of-salivary-glands-from-iodine-131-radiation-damage-in-patients-with-differentiated-thyroid-cancer
#14
Haiyoung Son, Sang Mi Lee, Ra Gyoung Yoon, Hakmin Lee, Ilkyun Lee, Soon Kim, Woong Youn Chung, Jeong Won Lee
OBJECTIVE: In the current study, we examined whether selenium supplementation during iodine-131 ((131)I) treatment had a radio-protective effect on salivary glands. SUBJECTS AND METHODS: Sixteen patients with differentiated thyroid cancer were prospectively enrolled in the study. Patients after total thyroidectomy, before (131)I treatment, were divided into two groups; 8 patients in the selenium group and 8 patients in the control group. Patients in the selenium group received 300νg of selenium orally for 10 days, from 3 days before to 6 days after (131)I treatment...
January 2017: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/28314952/stress-related-salivary-alpha-amylase-saa-activity-in-alcohol-dependent-patients-with-and-without-a-history-of-childhood-maltreatment
#15
Markus Muehlhan, Anja Höcker, Michael Höfler, Klaus Wiedemann, Sven Barnow, Ingo Schäfer
RATIONALE: Alcohol-dependent (AD) patients with a history of childhood maltreatment (CM) have shown a more severe clinical profile and a higher risk of relapse than those without CM. It was hypothesized that stress responsivity plays an important role in moderating the relationship between CM and AD. Surprisingly, systematic investigations about the stress responsivity in AD patients with CM are rare. OBJECTIVE: This study compared physiological and subjective stress responses in AD patients with and without CM as well as in healthy controls with and without CM...
March 18, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28303301/impact-of-tapered-cuff-tracheal-tube-on-microaspiration-of-gastric-contents-in-intubated-critically-ill-patients-a-multicenter-cluster-randomized-cross-over-controlled-trial
#16
Emmanuelle Jaillette, Christophe Girault, Guillaume Brunin, Farid Zerimech, Hélène Behal, Arnaud Chiche, Céline Broucqsault-Dedrie, Cyril Fayolle, Franck Minacori, Isabelle Alves, Stéphanie Barrailler, Julien Labreuche, Laurent Robriquet, Fabienne Tamion, Emmanuel Delaporte, Damien Thellier, Claire Delcourte, Alain Duhamel, Saad Nseir
PURPOSE: Studies on the impact of tapered-cuff tracheal tubes on rates of microaspiration and ventilator-associated pneumonia (VAP) in intubated patients have reported conflicting results. The aim of this study was to determine the influence of this shape of tracheal cuff on abundant microaspiration of gastric contents in critically ill patients. METHODS: All patients intubated in the intensive care unit (ICU) and requiring mechanical ventilation for at least 48 h were eligible for this multicenter cluster-randomized controlled cross-over open-label study...
March 16, 2017: Intensive Care Medicine
https://www.readbyqxmd.com/read/28290368/the-importance-of-an-oral-digestion-step-in-evaluating-simulated-in-vitro-digestibility-of-starch-from-cooked-rice-grain
#17
Masatsugu Tamura, Yumi Okazaki, Chisato Kumagai, Yukiharu Ogawa
To examine the effect of oral digestion step in a simulated in vitro starch digestion model, the digestibility of intact, homogenized and actual chewed cooked rice grains was investigated and analyzed. The kinetics of starch digestibility were calculated from changes in the hydrolysis percent of starch that were achieved during simulated small intestinal digestion stage. Morphological and histological microscopic tissue structures were also examined. Compared with the trend of starch hydrolysis changes of the actual chewed grain, 1...
April 2017: Food Research International
https://www.readbyqxmd.com/read/28284048/short-communication-salivary-haptoglobin-and-chromogranin-a-as-non-invasive-markers-during-restraint-stress-in-pigs
#18
Yanping Huang, Zhiqing Liu, Weifeng Liu, Chao Yin, Le Ci, Ruqian Zhao, Xiaojing Yang
The objective of present study was to investigate changes in salivary components during restraint to identify potential markers of stress. Pigs were subjected to a nasal snare stress (Experiment 1) or an immobilization stress (Experiment 2) by being enclosed in a steel cage. Saliva was collected before, during and after the stress, respectively. Salivary cortisol, serum amyloid A (SAA), haptoglobin (HP), chromogranin A (CgA), amylase, K(+), Ca(2+) and lactoferrin content were detected. The results showed that in Experiment 1, HP and CgA content increased significantly at 10min during the restraint (P<0...
February 27, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28277705/the-role-of-social-closeness-during-tape-stripping-to-facilitate-skin-barrier-recovery-preliminary-findings
#19
Hayley Robinson, Abhimati Ravikulan, Urs M Nater, Nadine Skoluda, Paul Jarrett, Elizabeth Broadbent
OBJECTIVE: Social support is known to reduce the negative effects of stress on health, but there is mixed evidence for the effects of social support on wound healing. This study aimed to investigate whether undergoing a task designed to promote social closeness with a fellow participant and being paired with that person during a tape-stripping procedure could reduce stress and improve skin barrier recovery compared to going through tape stripping alone. METHOD: Seventy-two healthy adults were randomized to either a social closeness condition where participants completed a relationship-building task and tape stripping in pairs or a control condition where they completed tape stripping alone...
March 9, 2017: Health Psychology: Official Journal of the Division of Health Psychology, American Psychological Association
https://www.readbyqxmd.com/read/28276806/psychobiological-impact-of-ethnic-discrimination-in-turkish-immigrants-living-in-germany
#20
Susanne Fischer, Urs M Nater, Jana Strahler, Nadine Skoluda, Leander Dieterich, Orgun Oezcan, Ricarda Mewes
Perceived ethnic discrimination has a negative impact on health. One of the key mechanisms may be a dysregulation of stress-responsive systems. Our aims were to investigate whether (1) acute face-to-face ethnic discrimination induces a stress response, and (2) to compare long-term endocrine functioning between immigrants and nonimmigrants. 30 male Turkish immigrants living in Germany underwent an ethnic discrimination condition and a control condition in the laboratory. Perceived ethnic discrimination, stress, salivary alpha-amylase and cortisol were measured four times...
March 5, 2017: Stress: the International Journal on the Biology of Stress
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