scholarly journals Redox Switches in Noise-Induced Cardiovascular and Neuronal Dysregulation

2021 ◽  
Vol 8 ◽  
Author(s):  
Katie Frenis ◽  
Marin Kuntic ◽  
Omar Hahad ◽  
Maria Teresa Bayo Jimenez ◽  
Matthias Oelze ◽  
...  
Keyword(s):  
Risk Factor ◽  
Stress Responses ◽  
Cardiovascular Health ◽  
Noise Exposure ◽  
Communicable Disease ◽  
Health Hazard ◽  
Microbiome Composition ◽  
Considerable Impact ◽  
Immune Health ◽  
Disease Study

Environmental exposures represent a significant health hazard, which cumulatively may be responsible for up to 2/3 of all chronic non-communicable disease and associated mortality (Global Burden of Disease Study and The Lancet Commission on Pollution and Health), which has given rise to a new concept of the exposome: the sum of environmental factors in every individual’s experience. Noise is part of the exposome and is increasingly being investigated as a health risk factor impacting neurological, cardiometabolic, endocrine, and immune health. Beyond the well-characterized effects of high-intensity noise on cochlear damage, noise is relatively well-studied in the cardiovascular field, where evidence is emerging from both human and translational experiments that noise from traffic-related sources could represent a risk factor for hypertension, ischemic heart disease, diabetes, and atherosclerosis. In the present review, we comprehensively discuss the current state of knowledge in the field of noise research. We give a brief survey of the literature documenting experiments in noise exposure in both humans and animals with a focus on cardiovascular disease. We also discuss the mechanisms that have been uncovered in recent years that describe how exposure to noise affects physiological homeostasis, leading to aberrant redox signaling resulting in metabolic and immune consequences, both of which have considerable impact on cardiovascular health. Additionally, we discuss the molecular pathways of redox involvement in the stress responses to noise and how they manifest in disruptions of the circadian rhythm, inflammatory signaling, gut microbiome composition, epigenetic landscape and vessel function.

scholarly journals More to Lose? Noise-Risk Perceptions of Young Adults with Hearing Impairment

2017 ◽  
Vol 38 (04) ◽  
pp. 319-331
Author(s):  
Deborah Black ◽  
Lyndal Carter
Keyword(s):  
Young Adults ◽  
Hearing Impairment ◽  
Hearing Aids ◽  
Risk Perceptions ◽  
Injury Risk ◽  
Noise Exposure ◽  
Peer Group ◽  
Health Hazard ◽  
Leisure Activities ◽  
Chi Square

AbstractThis study investigated the attitudes and behaviors of young adults with hearing impairment (HI), in relation to leisure noise. It was hypothesized that young people with HI would have more negative perceptions of noise exposure than their peers with nonimpaired (normal) hearing (NH) and would engage more frequently in self-protective behaviors. Questionnaires were administered as part of a larger study of young Australians with: (1) preadult onset HI and (2) NH. Data from adults (age range 18 to 24 years; n = 79 with HI, n = 131 with NH) were selected for the current analysis. Attitudes data for HI and NH groups were compared using chi-square tests, and the reported use of hearing aids and personal hearing protectors (PHPs) in leisure environments was quantified. Most participants with HI and NH regarded leisure noise as a health hazard but rated their own noise-injury risk as lower than that of their peer group. The use of PHPs was low overall, and many participants with HI reported using hearing aids (switched on) during noisy leisure activities. An equal and substantial proportion of participants with HI and NH reported dislike and avoidance of loud activities. Systematic noise management in leisure environments would address noise-injury risk and also enhance social participation.

scholarly journals The sugar composition of the fibre in selected plant foods modulates weaning infants’ gut microbiome composition and fermentation metabolites in vitro

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Shanthi G. Parkar ◽  
Jovyn K. T. Frost ◽  
Doug Rosendale ◽  
Halina M. Stoklosinski ◽  
Carel M. H. Jobsis ◽  
...  
Keyword(s):  
Gut Microbiome ◽  
Gas Production ◽  
Sugar Composition ◽  
Microbiome Composition ◽  
Fibre Concentration ◽  
Microbiome Profile ◽  
Infant Gut Microbiome ◽  
Immune Health ◽  
Faecal Bacteria

AbstractEight plant-based foods: oat flour and pureed apple, blackcurrant, carrot, gold- and green-fleshed kiwifruit, pumpkin, sweetcorn, were pre-digested and fermented with pooled inocula of weaning infants’ faecal bacteria in an in vitro hindgut model. Inulin and water were included as controls. The pre-digested foods were analysed for digestion-resistant fibre-derived sugar composition and standardised to the same total fibre concentration prior to fermentation. The food-microbiome interactions were then characterised by measuring microbial acid and gas metabolites, microbial glycosidase activity and determining microbiome structure. At the physiologically relevant time of 10 h of fermentation, the xyloglucan-rich apple and blackcurrant favoured a propiogenic metabolic and microbiome profile with no measurable gas production. Glucose-rich, xyloglucan-poor pumpkin caused the greatest increases in lactate and acetate (indicative of high fermentability) commensurate with increased bifidobacteria. Glucose-rich, xyloglucan-poor oats and sweetcorn, and arabinogalactan-rich carrot also increased lactate and acetate, and were more stimulatory of clostridial families, which are indicative of increased microbial diversity and gut and immune health. Inulin favoured a probiotic-driven consortium, while water supported a proteolytic microbiome. This study shows that the fibre-derived sugar composition of complementary foods may shape infant gut microbiome structure and metabolic activity, at least in vitro.

Abstract 18634: Favorable Cardiovascular Health and the Compression of Morbidity: Findings From the Chicago Heart Detection Project in Industry Study

Circulation ◽  
2015 ◽  
Vol 132 (suppl_3) ◽  
Author(s):  
Norrina B Allen ◽  
Lihui Zhao ◽  
Lei Liu ◽  
Martha Daviglus ◽  
Kiang Liu ◽  
...  
Keyword(s):  
Risk Factors ◽  
Risk Factor ◽  
High Risk ◽  
Healthcare Costs ◽  
Cardiovascular Health ◽  
Heart Association ◽  
Baseline Risk ◽  
Compression Of Morbidity ◽  
High Risk Factors ◽  
Morbidity Score

Introduction: We sought to determine the association of CV health at younger ages with the proportion of life lived free of morbidity, the cumulative burden of morbidity, and average healthcare costs at older ages. Methods: The Chicago Heart Association (CHA) study is a longitudinal cohort of employed men and women aged 18-59 years at baseline exam in 1967-1973. Baseline risk factor levels included blood pressure, cholesterol, diabetes, BMI and smoking. Individuals were classified into one of four strata: favorable levels of all factors, 0 factors high but 1+ elevated, 1 high, and ≥2 high risk factors. Linked CMS/NDI data from 1984-2010 were used to determine morbidity in older age providing up to 40 years of follow-up. We included participants who were age 65+ between 1984 and 2010 and enrolled in Medicare FFS. All-cause morbidity was defined using the Gagne score. A CV morbidity score was defined as the sum of 4 CVDs including CHD (includes MI), PVD, cerebrovascular disease and CHF. Results: We included 25,390 participants (43% female, 90% White, mean age 44 at baseline); 6% had favorable levels, 19% had 1+ risk factors at elevated levels, 40% had 1 high risk factor and 35% had 2+ high risk factors. As compared to those with 2+ high risk factors, favorable CV health had lower levels of all-cause and CV morbidity from age 65-90 years, and a lower cumulative morbidity burden (p<0.001) translating to lower average annual healthcare costs ($15,905 vs $20,791 per year, p<0.001). Favorable CV health postponed the onset of all-cause morbidity by 4.5 years, the onset of CV morbidity by almost 7 years and extended life by almost 4 years resulting in a compression of morbidity on both the absolute and relative scale (see figure). Conclusion: Individuals in favorable CV health live a longer, healthier life and a greater proportion of life free of morbidity. These findings provide support for prevention efforts aimed at preserving cardiovascular health and reducing the burden of disease in older ages.

scholarly journals A Comparative Study of Lipid Profile and Atherogenic Index of Plasma Among the Pre and Post-Menopausal Women

2018 ◽  
Vol 9 (1) ◽  
pp. 44-49 ◽  
Author(s):  
Sadia Khanduker ◽  
Rumana Ahmed ◽  
Mafruha Nazneen ◽  
Anawarul Alam ◽  
Farhana Khondokar
Keyword(s):  
Risk Factor ◽  
Lipid Profile ◽  
Independent Risk Factor ◽  
Cardiovascular Health ◽  
Premenopausal Women ◽  
Atherogenic Index ◽  
Mathematical Methods ◽  
Atherogenic Index Of Plasma ◽  
Menopausal Women ◽  
Post Menopausal

Background: Menopausal health in our environment has received little attention. As a independent risk factor for dyslipidemia, the degree and pattern of derangement, though difficult to assess may adversely affect the cardiovascular health of our women.Objectives: To estimate the serum lipid profile and the atherogenic index of plasma among the pre and post- menopausal women.Materials and Methods: After an overnight fasting blood samples were collected from a group of 339 women, 140 premenopausal aged between 25-50 years and 199 postmenopausal aged between 51-70 years. Serum total cholesterol (TC), triglycerides (TG) and HDL-cholesterol were estimated by enzymatic methods and LDL-cholesterol by established mathematical methods. Atherogenic index of plasma (AIP) were calculated by using the formula (logTG/HDL-C). Statistical analysis was carried out in the two groups using the unpaired t test. Results were expressed as mean±SD. P values <0.05 were considered to be statistically significant.Results: There were statistically significant increase in serum TC (191.21±45.50 mg/dl), TG (185.83± 111.83 mg/dl) and LDL-C (118.71±38.48 mg/dl) in post-menopausal women. Their HDL-C level (38.67±10.00mg/dl) was significantly decreased. The calculated atherogenic index of plasma (AIP) was significantly higher (0.63±0.27) in post-menopausal women as compared to that in premenopausal women (0.50±0.29).Conclusion: Menopause leads to changes in lipid profile. By elevating LDL and the reduction of cardioprotective HDL is an indication that menopause is an independent risk factor for developing cardiovascular disease. These changes are caused by loss of cardio-protective effect of oestrogen.Anwer Khan Modern Medical College Journal Vol. 9, No. 1: Jan 2018, P 44-49

scholarly journals Gestational Stress Augments Postpartum β-Amyloid Pathology and Cognitive Decline in a Mouse Model of Alzheimer’s Disease

2018 ◽  
Vol 29 (9) ◽  
pp. 3712-3724 ◽  
Author(s):  
Zahra Jafari ◽  
Jogender Mehla ◽  
Bryan E Kolb ◽  
Majid H Mohajerani
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Risk Factor ◽  
Cognitive Decline ◽  
Noise Exposure ◽  
Amyloid Β ◽  
Control Group ◽  
Plaque Size ◽  
Model Of Alzheimer’S Disease ◽  
Gestational Stress

Abstract Besides well-known risk factors for Alzheimer’s disease (AD), stress, and in particular noise stress (NS), is a lifestyle risk factor common today. It is known that females are at a significantly greater risk of developing AD than males, and given that stress is a common adversity in females during pregnancy, we hypothesized that gestational noise exposure could exacerbate the postpartum development of the AD-like neuropathological changes during the life span. Pregnant APPNL-G-F/NL-G-F mice were randomly assigned to either the stress condition or control group. The stress group was exposed to the NS on gestational days 12–16, which resulted in a markedly higher hypothalamic–pituitary–adrenal (HPA) axis responsivity during the postpartum stage. Higher amyloid-β (Aβ) deposition and larger Aβ plaque size in the olfactory area were the early onset impacts of the gestational stress (GS) seen at the age of 4 months. This pattern of increased Aβ aggregation and larger plaque size were observed in various brain areas involved in both AD and stress regulation, especially in limbic structures, at the age of 6 months. The GS also produced anxiety-like behavior, deficits in learning and memory, and impaired motor coordination. The findings suggest that environmental stresses during pregnancy pose a potential risk factor in accelerating postpartum cognitive decline and AD-like neuropathological changes in the dams (mothers) later in life.

scholarly journals Risk factors and risk factor cascades for communicable disease outbreaks in complex humanitarian emergencies: a qualitative systematic review

2018 ◽  
Vol 3 (4) ◽  
pp. e000647 ◽  
Author(s):  
Charlotte Christiane Hammer ◽  
Julii Brainard ◽  
Paul R Hunter
Keyword(s):  
Risk Factors ◽  
Risk Factor ◽  
Communicable Disease ◽  
Disease Outbreaks ◽  
Poor Quality ◽  
Communicable Diseases ◽  
Individual Risk ◽  
Humanitarian Emergencies ◽  
General Terms ◽  
Complex Humanitarian Emergencies

BackgroundCommunicable diseases are a major concern during complex humanitarian emergencies (CHEs). Descriptions of risk factors for outbreaks are often non-specific and not easily generalisable to similar situations. This review attempts to capture relevant evidence and explore whether it is possible to better generalise the role of risk factors and risk factor cascades these factors may form.MethodsA systematic search of the key databases and websites was conducted. Search terms included terms for CHEs (United Nations Office for the Coordination of Humanitarian Affairs definition) and terms for communicable diseases. Due to the types of evidence found, a thematic synthesis was conducted.Results26 articles met inclusion criteria. Key risk factors include crowded conditions, forced displacement, poor quality shelter, poor water, sanitation and hygiene, lack of healthcare facilities and lack of adequate surveillance. Most identified risk factors do not relate to specific diseases, or are specific to a group of diseases such as diarrhoeal diseases and not to a particular disease within that group. Risk factors are often listed in general terms but are poorly evidenced, not contextualised and not considered with respect to interaction effects in individual publications. The high level of the inter-relatedness of risk factors became evident, demonstrating risk factor cascades that are triggered by individual risk factors or clusters of risk factors.ConclusionsCHEs pose a significant threat to public health. More rigorous research on the risk of disease outbreaks in CHEs is needed, from a practitioner and from an academic point of view.

scholarly journals Stroke Disparities: From Observations to Actions

Stroke ◽  
2020 ◽  
Vol 51 (11) ◽  
pp. 3392-3405 ◽  
Author(s):  
Ralph L. Sacco
Keyword(s):  
Risk Factor ◽  
Ethnic Groups ◽  
Cardiovascular Health ◽  
Disease Incidence ◽  
Human Populations ◽  
Stroke Incidence ◽  
Ideal Cardiovascular Health ◽  
Awareness Campaigns ◽  
Study Results ◽  
Improvement Programs

Numerous epidemiological studies have demonstrated stroke disparities across race and ethnic groups. The goal of the NOMAS (Northern Manhattan Study) was to evaluate race and ethnic differences in stroke within a community with 3 different race-ethnic groups. Starting as a population-based incidence and case-control study, the study evolved into a cohort study. Results from NOMAS have demonstrated differences in stroke incidence, subtypes, risk factors, and outcomes. Disparities in ideal cardiovascular health can help explain many differences in stroke incidence and call for tailored risk factor modification through innovative portals to shift more diverse subjects to ideal cardiovascular health. The results of NOMAS and multiple other studies have provided foundational data to support interventions. Conceptual models to address health disparities have called for moving from detecting disparities in disease incidence, to determining the underlying causes of disparities and developing interventions, and then to testing interventions in human populations. Further actions to address race and ethnic stroke disparities are needed including innovative risk factor interventions, stroke awareness campaigns, quality improvement programs, workforce diversification, and accelerating policy changes.

Arterial disease in the young

ESC CardioMed ◽  
2018 ◽  
pp. 775-778
Author(s):  
Marietta Charakida ◽  
John Deanfield
Keyword(s):  
Risk Factors ◽  
Congenital Heart Disease ◽  
Risk Factor ◽  
Congenital Heart ◽  
Cardiovascular Health ◽  
Adult Population ◽  
Arterial Disease ◽  
Ideal Cardiovascular Health ◽  
Reduce Risk ◽  
Reduce Risk Factor

The growing adult population with congenital heart disease (CHD) are getting older and their clinical presentation and outcomes are likely to be determined not only by their underlying CHD, but also by the development of acquired cardiovascular diseases such as atherosclerosis. This begins in childhood. The adult CHD population have multiple cardiovascular risk factors, as found in the general population, including obesity, smoking, and sedentary behaviour. Adults with complex congenital heart circulation are likely to be particularly vulnerable to the development of acquired arterial disease. Maintenance of ‘ideal cardiovascular health’ from childhood, is a key target, as leveraged gains can be achieved by early intervention to reduce risk factor exposure.

Sign in / Sign up

Export Citation Format

Share Document