scholarly journals The Relationship between Vascular Function and the Autonomic Nervous System

2014 ◽  
Vol 7 (2) ◽  
pp. 109-119 ◽  
Author(s):  
Eisuke Amiya ◽  
Masafumi Watanabe ◽  
Issei Komuro
Author(s):  
Vladimir A. Fokin ◽  
Dmitrii M. Shlyapnikov ◽  
Svetlana V. Red’ko

In accordance with the requirements of paragraph 3.2.6 of sanitary rules and norms «Sanitary and epidemiological requirements for physical factors at workplace», in the event of exceeding noise level at workplace above 80 dBA, an employer is obliged to assess the health risk of workers and confirm an acceptable risk to their health. The connection between the incidence of occupational and occupationally conditioned diseases with noise exposure exceeding the maximum permissible levels (80 dBA) was estimated. The assessment was carried out at a food industry enterprise of Perm Region. Assessing the relationship between morbidity and noise exposure is the first step in evaluation of occupational health risks for workers exposed to noise exceeding MAL. If a reliable relationship between morbidity and noise exposure is established, an assessment of occupational risk is conducted. The odds ratio (OR) for diseases characterized by high blood pressure and disorders of autonomic nervous system was <1 (confidence interval CI=0.11–1.61 and CI=0.08–2.78, respectively). The relative risk (RR) for diseases characterized by high blood pressure and disorders of autonomic nervous system was <1. The received data testify absence of connection of morbidity with exposure to industrial noise, calculation of etiological share of responses and levels of risk is not required.


1939 ◽  
Vol 85 (358) ◽  
pp. 1036-1042
Author(s):  
Duncan Macmillan ◽  
H. Fischgold

Though detailed knowledge of the autonomic nervous system is comparatively recent, the initial conceptions of its nature have undergone very important modifications during the time it has been known. This is mainly due to the fact that originally the anatomical discovery was taken up by investigators in various branches of clinical medicine, physiology and pharmacology, and made a special subject for detailed research. Especially did the dualism which is so remarkable a feature of the autonomic nervous system give rise to a number of theories about the relationship of the two components.


Author(s):  
Hope Peterson ◽  
Rhiannon E Mayhugh ◽  
Mohsen Bahrami ◽  
W Jack Rejeski ◽  
Sean L Simpson ◽  
...  

Alcohol consumption is now common practice worldwide, and functional brain networks are beginning to reveal the complex interactions observed with alcohol consumption and abstinence. The autonomic nervous system (ANS) has a well-documented relationship with alcohol use, and a growing body of research is finding links between the ANS and functional brain networks. This study recruited everyday drinkers in an effort to uncover the relationship between alcohol abstinence, ANS function, and whole brain functional brain networks. Participants (n=29), 24-60 years-of-age, consumed moderate levels of alcohol regularly (males 2.4 (&plusmn;0.26) drinks/day, females 2.3 (&plusmn;0.96) drinks/day). ANS function, specifically cardiac vagal tone, was assessed using the Porges-Bohrer method for calculating respiratory sinus arrhythmia (PBRSA). Functional brain networks were generated from resting-state MRI scans obtained following 3-day periods of typical consumption and abstinence. A multi-task mixed-effects regression model determined the influences of HRV and drinking state on functional network connectivity. Results showed differences in the relationship between the strength of network connections and clustering coefficients across drinking states, moderated by PBRSA. Increases in connection strength between highly clustered nodes during abstinence as PBRSA increases demonstrates a greater possible range of topological configurations at high PBRSA values. This novel finding begins to shed light on the complex interactions between typical alcohol abstinence and physiological responses of the central and autonomic nervous system.


Author(s):  
Jennifer Weggen ◽  
Ashley Darling ◽  
Aaron Autler ◽  
Austin C Hogwood ◽  
Kevin Decker ◽  
...  

PURPOSE: Posttraumatic stress disorder (PTSD) has been associated with an increase in risk of cardiovascular disease (CVD). The goal of the study was to determine if peripheral vascular dysfunction, a precursor to CVD, was present in young adults with PTSD, and if an acute antioxidant (AO) supplementation could modify this potential PTSD-induced vascular dysfunction. METHODS: Thirteen individuals with PTSD were recruited for this investigation and were compared to 35 age- and sex-matched controls (CTRL). The PTSD group participated in two visits, consuming either a placebo (PTSD-PL) or antioxidants (PTSD-AO; Vitamins C and E; Alpha Lipoic Acid) prior to their visits, while the CRTL subjects only participated in one visit. Upper and lower limb vascular function were assessed via flow-mediated dilation and passive leg movement technique. Heart rate variability was utilized to assess autonomic nervous system modulation. RESULTS: The PTSD-PL condition, when compared to the CTRL group, reported lower arm and leg microvascular function as well as sympathetic nervous system (SNS) predominance. Following acute AO supplementation, arm, but not leg, microvascular function was improved and SNS predominance was lowered to which the prior difference between PTSD group and CTRL was no longer significant. CONCLUSION: Young individuals with PTSD demonstrated lower arm and leg microvascular function as well as greater SNS predominance when compared to age- and sex-matched controls. Furthermore, this lower vascular/autonomic function was augmented by an acute AO supplementation to the level of the healthy controls, potentially implicating oxidative stress as a contributor to this blunted vascular/autonomic function.


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