scholarly journals Impact of acute changes in blood pressure and arterial stiffness on cerebral pulsatile hemodynamics in young and middle‐aged adults

2021 ◽  
Author(s):  
Wesley K Lefferts ◽  
Elizabeth C Lefferts ◽  
Brooks A Hibner ◽  
Kurt J Smith ◽  
Bo Fernhall
Keyword(s):  
Blood Pressure ◽  
Arterial Stiffness ◽  
Middle Aged ◽  
Acute Changes ◽  
Middle Aged Adults

scholarly journals Lead Exposure and Cardiovascular Disease among Young and Middle-Aged Adults

2019 ◽  
Vol 7 (11) ◽  
pp. 103 ◽  
Author(s):  
Emmanuel Obeng-Gyasi
Keyword(s):  
Blood Pressure ◽  
Logistic Regression ◽  
Lead Exposure ◽  
Binary Logistic Regression ◽  
The United States ◽  
Gamma Glutamyl Transferase ◽  
Middle Aged ◽  
The Mean ◽  
Glutamyl Transferase ◽  
Middle Aged Adults

Lead and its effects on cardiovascular-related markers were explored in this cross-sectional study of young adults (18–44 years) and middle-aged adults (45–65 years) from the United States using the National Health and Nutrition Examination Survey (NHANES), 2009–2016. Degrees of exposure were created using blood lead level (BLL) as the biomarker of exposure based on the epidemiologically relevant threshold of BLL > 5 μg/dL. The mean values, in addition to the percentages of people represented for the markers of interest (systolic blood pressure [SBP], diastolic blood pressure [DBP], gamma-glutamyl transferase [GGT], non-high-density lipoprotein cholesterol [non-HDL-C]) were explored. Among those exposed to lead, the likelihood of elevated clinical markers (as defined by clinically relevant thresholds of above normal) were examined using binary logistic regression. In exploring exposure at the 5 μg/dL levels, there were significant differences in all the mean variables of interest between young and middle-aged adults. The binary logistic regression showed young and middle-aged adults exposed to lead were significantly more likely to have elevated markers (apart from DBP). In all, lead affects cardiovascular-related markers in young and middle-aged U.S. adults and thus we must continue to monitor lead exposure to promote health.

Acute effects of body-weight resistance exercises on blood pressure and glycemia in middle-aged adults with hypertension

2020 ◽  
Vol 43 (1) ◽  
pp. 63-68
Author(s):  
Rodrigo Ferrari ◽  
Eduardo Lusa Cadore ◽  
Bibiana Périco ◽  
Gabriela Bartholomay Kothe
Keyword(s):  
Blood Pressure ◽  
Body Weight ◽  
Acute Effects ◽  
Middle Aged ◽  
Resistance Exercises ◽  
Middle Aged Adults

scholarly journals The Gut Microbiota Is Associated with Vascular Function and Blood Pressure Phenotypes in Overweight and Obese Middle-Aged/Older Adults (P21-024-19)

2019 ◽  
Vol 3 (Supplement_1) ◽  
Author(s):  
Sarah Johnson ◽  
Nicole Litwin ◽  
Hannah Van Ark ◽  
Shannon Hartley ◽  
Emily Fischer ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Arterial Stiffness ◽  
Gut Microbiota ◽  
Vascular Function ◽  
Vascular Dysfunction ◽  
Reactive Hyperemia ◽  
Bifidobacterium Longum ◽  
Middle Aged ◽  
Principal Coordinates ◽  
The Relationship

Abstract Objectives The gut microbiota is emerging as an important regulator of cardiovascular health. Indeed, gut dysbiosis is increasingly being linked to the development of cardiovascular disease (CVD). Aging and obesity are associated with the development of CVD largely due to the development of vascular dysfunction, namely endothelial dysfunction and arterial stiffness. The objective of this study was to examine the relationship between the gut microbiota, blood pressure, and vascular function in aging overweight and obese individuals. Methods This cross-sectional study included fifteen overweight and obese (mean body mass index, BMI: 29.5; range: 25.8–37.0) middle-aged/older men and postmenopausal women (mean age: 53; range: 42–64 years). Blood pressure, arterial stiffness (augmentation index, AIx, and aortic pulse wave velocity, aPWV), and endothelial function (reactive hyperemia index, RHI) were assessed. Stool samples were collected for gut microbiota analysis using 16S ribosomal RNA sequencing. Principal coordinates analysis and Pearson's correlations were performed to evaluate the relationship between the gut microbiota and measures of vascular function and blood pressure. Results Global gut microbiota phenotypes clustered most strongly by aPWV (groups separated by median value) as visualized by Non-Metric Dimensional Scaling plot of Bray-Curtis Distances (stress = 0.09; P = 0.07). Several bacterial taxa correlated with vascular parameters. For example, Bifidobacterium longum (r = 0.80, P < 0.001) and Akkermansia muciniphila (r = 0.56, P = 0.047) were positively correlated with RHI. Bifdobacterium bifidum (r = −0.61, P = 0.02) and Oxalobacter formigenes (r = −0.62, P = 0.02) were negatively correlated with systolic blood pressure. Interestingly, there was no significant clustering by BMI groupings (overweight vs. obese) or correlations between BMI and specific taxa. Conclusions These preliminary data suggest that the gut microbiota is linked to vascular dysfunction and increased blood pressure in aging overweight and obese individuals independent of BMI. Further data collection and analysis are currently underway to explore these relationships in a larger human cohort, and to explore underlying mechanisms through transferring of vascular phenotypes in humans to germ-free mice through microbiota transplantation. Funding Sources NIFA, USDA.

scholarly journals Influence of Body Composition on Arterial Stiffness in Middle-Aged Adults: Healthy UAL Cross-Sectional Study

Medicina ◽  
2019 ◽  
Vol 55 (7) ◽  
pp. 334 ◽  
Author(s):  
Alba Hernandez-Martinez ◽  
Elena Martinez-Rosales ◽  
Manuel Alcaraz-Ibañez ◽  
Alberto Soriano-Maldonado ◽  
Enrique G. Artero
Keyword(s):  
Body Composition ◽  
Arterial Stiffness ◽  
Metabolic Diseases ◽  
Cross Sectional Study ◽  
Neck Circumference ◽  
Fat Free Mass ◽  
Sectional Study ◽  
Middle Aged ◽  
Cross Sectional ◽  
Middle Aged Adults

Background and objectives: Several anthropometric and body composition parameters have been linked to arterial stiffness (AS) as a biomarker of cardiovascular disease. However, little is known about which of these closely related factors is more strongly associated with AS. The aim of the present study was to analyze the relationship of different anthropometric and body composition parameters with AS in middle-aged adults. Materials and Methods: This cross-sectional study included 186 middle-aged participants (85 women, 101 men; age = 42.8 ± 12.6 years) evaluated as part of the Healthy UAL study, a population study conducted at the University of Almería with the main purpose of analyzing the etiology and risk factors associated with cardio-metabolic diseases. Anthropometric measures included neck, waist, and hip circumferences, as well as the waist-to-height ratio (WHtr). Bioimpedance-derived parameters included fat-free mass index (FFMI), fat mass index (FMI), and percent of body fat (%BF). AS was measured by pulse wave velocity (PWV). The relationships of interest were examined through stepwise regression analyses in which age and sex were also introduced as potential confounders. Results: Neck circumference (in the anthropometric model; R 2: 0.889; β: age = 0.855, neck = 0.204) and FFMI (in the bio-impedance model; R2: 0.891; β: age = 0.906, FFMI = 0.199) emerged as significant cross-sectional predictors of AS. When all parameters were included together (both anthropometry and bio-impedance), both neck circumference and FFMI appeared again as being significantly associated with AS (R2: 0.894; β: age = 0.882, FFMI = 0.126, neck = 0.093). Conclusion: It was concluded that FFMI and neck circumference are correlated with AS regardless of potential confounders and other anthropometric and bioimpedance-derived parameters in middle-aged adults.

Relaxation therapy for hypertensive patients

1989 ◽  
Vol 27 (20) ◽  
pp. 77-79
Keyword(s):  
Heart Failure ◽  
Blood Pressure ◽  
Diastolic Blood Pressure ◽  
Heart Attack ◽  
Mild Hypertension ◽  
Relaxation Therapy ◽  
Middle Aged ◽  
Hypertensive Patients ◽  
Increased Risk ◽  
Middle Aged Adults

Around 7% of middle-aged adults have mild hypertension - a sustained diastolic blood pressure between 90 and 104mmHg.1 These people are at increased risk, for example of heart attack, stroke and heart failure, and so might benefit from life-long treatment with one or more drugs. But in mild hypertension the risk is relatively low and unwanted effects of drugs may outweigh the benefit from treatment.2

scholarly journals Associations between normal weight central obesity and cardiovascular disease risk factors in Japanese middle-aged adults: a cross-sectional study

2019 ◽  
Vol 38 (1) ◽  
Author(s):  
Takako Shirasawa ◽  
Hirotaka Ochiai ◽  
Takahiko Yoshimoto ◽  
Satsue Nagahama ◽  
Mariko Kobayashi ◽  
...  
Keyword(s):  
Risk Factors ◽  
Blood Pressure ◽  
Cardiovascular Disease ◽  
Central Obesity ◽  
Normal Weight ◽  
Cvd Risk Factors ◽  
Middle Aged ◽  
Cvd Risk ◽  
Japanese Adults ◽  
Middle Aged Adults

Abstract Background Several studies have shown that normal weight central obesity (NWCO) is associated with cardiovascular disease (CVD) risk factors. However, studies conducted in the Japanese population have been very limited. Thus, the relationships between normal weight central obesity, classified using body mass index (BMI), the waist-to-height ratio (WHtR), and CVD risk factors in middle-aged Japanese adults were investigated. Methods The participants were Japanese adults aged 40–64 years who had undergone periodic health examinations in Japan during the period from April 2013 to March 2014. The participants were categorized into the following four groups: normal weight (BMI 18.5–24.9 kg/m2) and no central obesity (WHtR < 0.5) (NW); normal weight and central obesity (WHtR ≥ 0.5) (NWCO); obesity (BMI ≥ 25 kg/m2) and no central obesity (OB); and obesity and central obesity (OBCO). Hypertension was defined as systolic blood pressure ≥ 140 mmHg, diastolic blood pressure ≥ 90 mmHg, or taking medication for hypertension. Dyslipidemia was defined as LDL-C ≥ 140 mg/dl, HDL-C < 40 mg/dl, triglyceride ≥ 150 mg/dl, or taking medication for dyslipidemia. Diabetes was defined as fasting plasma glucose ≥ 126 mg/dl, random plasma glucose ≥ 200 mg/dl, HbA1c ≥ 6.5%, or receiving medical treatment for diabetes mellitus. A logistic regression model was used to calculate the odds ratios (ORs) and 95% confidence intervals (CIs) for hypertension, dyslipidemia, and diabetes. Results A total of 117,163 participants (82,487 men and 34,676 women) were analyzed. The prevalence of NWCO was 15.6% in men and 30.2% in women. With reference to NW, the ORs for hypertension (adjusted OR 1.22, 95% CI 1.17–1.27 in men, 1.23, 1.16–1.31 in women), dyslipidemia (1.81, 1.74–1.89 in men, 1.60, 1.52–1.69 in women), and diabetes (1.35, 1.25–1.46 in men, 1.60, 1.35–1.90 in women) were significantly higher in NWCO. Conclusions Normal weight with central obesity was associated with CVD risk factors, such as hypertension, dyslipidemia, and diabetes, compared with normal weight without central obesity, regardless of sex. It is important to focus on normal weight with central obesity for the prevention of CVD in Japanese middle-aged adults.

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