scholarly journals Evolution of Human Salivary Stress Markers during an Eight-Hour Exposure to a Mediterranean Holm Oak Forest. A Pilot Study

Forests ◽  
2021 ◽  
Vol 12 (11) ◽  
pp. 1600
Author(s):  
Albert Bach ◽  
Jose Joaquin Ceron ◽  
Roser Maneja ◽  
Joan Llusià ◽  
Josep Penuelas ◽  
...  
Keyword(s):  
Pilot Study ◽  
Amylase Activity ◽  
Holm Oak ◽  
Alpha Amylase ◽  
Oak Forest ◽  
Salivary Biomarkers ◽  
Stress Markers ◽  
Human Stress

The current study analyses the evolution of different human stress markers during an 8 h exposure to a Mediterranean Holm oak forest. We conducted a pre-post study with thirty-one subjects in which saliva samples were collected before the exposure (baseline) and after 1, 2, 4 and 8 h. Our results show: (A) a significant decrease in cortisol saliva concentrations from the second hour until the end compared to basal time; (B) a significant increase in alpha amylase activity after the first hour of exposure compared to basal time that remained elevated during the rest of the study; (C) a significant decrease in IgA from the fourth hour of exposure compared to the basal time. These findings indicate an effect of forest exposure in salivary biomarkers of stress and provide relevant data for the scientific and healthcare community encouraging further research in the field.

scholarly journals Salivary alpha-amylase activity and cortisol in horses with acute abdominal disease: a pilot study

2018 ◽  
Vol 14 (1) ◽  
Author(s):  
María Dolores Contreras-Aguilar ◽  
Damián Escribano ◽  
María Martín-Cuervo ◽  
Fernando Tecles ◽  
Jose Joaquín Cerón
Keyword(s):  
Pilot Study ◽  
Amylase Activity ◽  
Alpha Amylase ◽  
Salivary Alpha Amylase ◽  
Abdominal Disease

scholarly journals Using Salivary Biomarkers for Stress Assessment in Offshore Saturation Diving: A Pilot Study

2021 ◽  
Vol 12 ◽  
Author(s):  
Roxane Monnoyer ◽  
Jacky Lautridou ◽  
Sanjoy Deb ◽  
Astrid Hjelde ◽  
Ingrid Eftedal
Keyword(s):  
Pilot Study ◽  
Immunoglobulin A ◽  
Alpha Amylase ◽  
Bottom Phase ◽  
Stress Assessment ◽  
Reactive Protein ◽  
Salivary Biomarkers ◽  
Tnf Α ◽  
Biomarker Analysis ◽  
Limited Opportunity

Health monitoring during offshore saturation diving is complicated due to restricted access to the divers, the desire to keep invasive procedures to a minimum, and limited opportunity for laboratory work onboard dive support vessels (DSV). In this pilot study, we examined whether measuring salivary biomarkrers in samples collected by the divers themselves might be a feasible approach to environmental stress assessment. Nine saturation divers were trained in the passive drool method for saliva collection and proceeded to collect samples at nine time points before, during, and after an offshore commercial saturation diving campaign. Samples collected within the hyperbaric living chambers were decompressed and stored frozen at −20°C onboard the DSV until they were shipped to land for analysis. Passive drool samples were collected without loss and assayed for a selection of salivary biomarkers: secretory immunoglobulin A (SIgA), C-reactive protein (CRP), tumor necrosis factor (TNF)-α, interleukins IL-6, IL-8, IL-1β, as well as cortisol and alpha-amylase. During the bottom phase of the hyperbaric saturation, SIgA, CRP, TNF-α, IL-8 and IL-1β increased significantly, whereas IL-6, cortisol and alpha-amylase were unchanged. All markers returned to pre-dive levels after the divers were decompressed back to surface pressure. We conclude that salivary biomarker analysis may be a feasible approach to stress assessment in offshore saturation diving. The results of our pilot test are consonant with an activation of the sympathetic nervous system related to systemic inflammation during hyperbaric and hyperoxic saturation.

Effects of oral lubrication on satiety, satiation and salivary biomarkers in model foods: A pilot study

Appetite ◽  
2021 ◽  
pp. 105427
Author(s):  
Ecaterina Stribițcaia ◽  
Catherine Gibbons ◽  
Joanne Sier ◽  
Christine Boesch ◽  
John Blundell ◽  
...  
Keyword(s):  
Pilot Study ◽  
Salivary Biomarkers

Comparing i-Tree Eco Estimates of Particulate Matter Deposition with Leaf and Canopy Measurements in an Urban Mediterranean Holm Oak Forest

2021 ◽  
Author(s):  
Rocco Pace ◽  
Gabriele Guidolotti ◽  
Chiara Baldacchini ◽  
Emanuele Pallozzi ◽  
Rüdiger Grote ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Holm Oak ◽  
Oak Forest

Inhaled Salmeterol Induces Salivary Alpha Amylase Activity in Healthy Subjects

2015 ◽  
Vol 135 (2) ◽  
pp. AB4
Author(s):  
Andrea A. Pappalardo ◽  
Sherlyana Surja ◽  
Caitlin M. Campion ◽  
Sarah J. Aldrich ◽  
James N. Moy
Keyword(s):  
Healthy Subjects ◽  
Amylase Activity ◽  
Alpha Amylase ◽  
Salivary Alpha Amylase

Chronic stress impacts the cardiovascular system: animal models and clinical outcomes

2015 ◽  
Vol 308 (12) ◽  
pp. H1476-H1498 ◽  
Author(s):  
Saeid Golbidi ◽  
Jefferson C. Frisbee ◽  
Ismail Laher
Keyword(s):  
Cardiovascular Diseases ◽  
Animal Models ◽  
Chronic Stress ◽  
Laboratory Findings ◽  
Important Group ◽  
Stress Markers ◽  
Random Fashion ◽  
Human Stress ◽  
Underlying Mechanisms ◽  
Psychosomatic Diseases

Psychological stresses are associated with cardiovascular diseases to the extent that cardiovascular diseases are among the most important group of psychosomatic diseases. The longstanding association between stress and cardiovascular disease exists despite a large ambiguity about the underlying mechanisms. An array of possibilities have been proposed including overactivity of the autonomic nervous system and humoral changes, which then converge on endothelial dysfunction that initiates unwanted cardiovascular consequences. We review some of the features of the two most important stress-activated systems, i.e., the humoral and nervous systems, and focus on alterations in endothelial function that could ensue as a result of these changes. Cardiac and hematologic consequences of stress are also addressed briefly. It is likely that activation of the inflammatory cascade in association with oxidative imbalance represents key pathophysiological components of stress-induced cardiovascular changes. We also review some of the commonly used animal models of stress and discuss the cardiovascular outcomes reported in these models of stress. The unique ability of animals for adaptation under stressful conditions lessens the extrapolation of laboratory findings to conditions of human stress. An animal model of unpredictable chronic stress, which applies various stress modules in a random fashion, might be a useful solution to this predicament. The use of stress markers as indicators of stress intensity is also discussed in various models of animal stress and in clinical studies.

scholarly journals Primary metabolite mobilization during germination in rosewood (Aniba rosaeodora Ducke) seeds

2008 ◽  
Vol 32 (1) ◽  
pp. 19-25 ◽  
Author(s):  
Renata Braga Souza Lima ◽  
José Francisco de Carvalho Gonçalves ◽  
Silvana Cristina Pando ◽  
Andréia Varmes Fernandes ◽  
André Luis Wendt dos Santos
Keyword(s):  
Seed Germination ◽  
Amylase Activity ◽  
Starch Content ◽  
Initial Period ◽  
Soluble Sugar ◽  
Soluble Sugars ◽  
Alpha Amylase ◽  
Primary Metabolite ◽  
Radicle Growth ◽  
Starch Mobilization

This study aimed to characterize protein, oil, starch and soluble sugar mobilization as well as the activity of alpha-amylase during rosewood seed germination. Germination test was carried out at 25°C and the following parameters were analyzed: percentage of germination, initial, average, and final germination time. Seed reserve quantification was monitored in quiescent seeds and during different stages of radicle growth. Starch mobilization was studied in function of a-amylase activity. Germination reached 87.5% at the initial, average, and final time of 16, 21 and 30 days, respectively. Oil mobilization showed a negative linear behavior, decreasing 40% between the first and the last stage analyzed, whereas protein levels increased 34.7% during the initial period of germination. Starch content (46.4%) was the highest among those of the metabolites analyzed and starch mobilization occurred inversely to the observed for soluble sugars; alpha-amylase activity increased until the 15th day, a period before radicle emission and corresponding to the highest starch mobilization. The high percentage of rosewood seed germination may be related to the controlled condition used in the germination chamber as well as to high seed reserve mobilization, in special oil and starch.

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