Blood pressure, glucose and cholesterol in 18- to 30-year-olds predicts decline
Young adults with such cardiac risk factors as high blood pressure and elevated glucose levels have significantly worse cognitive function in middle age, according to a new study by dementia researchers at UC San Francisco.
The findings bolster the view that diseases like Alzheimer's develop over an individual's lifespan and may be set in motion early in life. And they offer hope that young adults may be able to lower their risk of developing dementia through diet and exercise, or even by taking medications.
"These cardiovascular risk factors are all quite modifiable," said senior author Kristine Yaffe, MD, a professor in the departments of Psychiatry, Neurology, and Epidemiology and Biostatistics at UCSF, who holds the Roy and Marie Scola Endowed Chair in Psychiatry.
"We already know that reducing these risk factors in midlife can decrease the risk of dementia in old age," continued Yaffe, who is also Chief of Geriatric Psychiatry and Director of the Memory Disorders Clinic at the San Francisco VA Medical Center. "If it turns out that the damage begins before middle age, we may need to expand our focus and work on reducing heart disease risks in earlier stages of life."
The study, published March 31 in Circulation, examines data from more than 3,300 18- to 30-year-olds in the Coronary Artery Risk Development in Young Adults (CARDIA) study, which began enrolling thousands of participants nationwide in 1985 to understand how heart disease develops in black and white adults.
Cardiac risk factors were measured every two to five years for 25 years, at which point those in the study underwent tests to measure their executive function, cognitive processing speed and verbal memory.
Those whose blood pressure and glucose exceeded recommended levels during the 25-year study performed worse on all three tests, while high cholesterol was associated only with poor verbal memory.
The authors cited a number of mechanisms by which elevated blood pressure and glucose could diminish cognition in middle age, such as by reducing blood supply to the brain, causing changes in brain structure and increasing inflammation and oxidative stress, which can damage neurons. Another possibility is that these risk factors may interfere with the clearance of amyloid proteins associated with Alzheimer's disease.
Since cognitive function was not measured at the beginning of the study, the authors could not estimate the cognitive change caused by these risk factors.
Co-authors of the study are Eric Vittinghoff, PhD, and Mark J. Pletcher, MD, MPH, of UCSF; Tina Hoang, MSPH, of the Northern California Institute for Research and Education, San Francisco; Lenore Launer, PhD, of the National Institute on Aging; Rachel Whitmer, PhD, and Stephen Sidney, MD, of Kaiser Permanente of Northern California, Oakland; and Laura H. Coker, PhD, of Wake Forest School of Medicine, Winston-Salem, NC.
UCSF is a leading university dedicated to promoting health worldwide through advanced biomedical research, graduate-level education in the life sciences and health professions, and excellence in patient care. It includes top-ranked graduate schools of dentistry, medicine, nursing and pharmacy, a graduate division with nationally renowned programs in basic biomedical, translational and population sciences, as well as a preeminent biomedical research enterprise and two top-ranked hospitals, UCSF Medical Center and UCSF Benioff Children's Hospital.
Laura Kurtzman | EurekAlert!
Team discovers how bacteria exploit a chink in the body's armor
20.01.2017 | University of Illinois at Urbana-Champaign
Rabies viruses reveal wiring in transparent brains
19.01.2017 | Rheinische Friedrich-Wilhelms-Universität Bonn
An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...
Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...
Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.
While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...
Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales
Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...
Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.
As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...
19.01.2017 | Event News
10.01.2017 | Event News
09.01.2017 | Event News
20.01.2017 | Awards Funding
20.01.2017 | Materials Sciences
20.01.2017 | Life Sciences