Dependence

Papers on dependence

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Saturday, November 7

AHA Scientific Sessions 2026 Abstract

Repeated low blood mineral levels linked to irregular heartbeat

For low calcium, adjusted hazard ratios—measures of relative event rates—rose from 1.27 with one abnormal reading to 1.84 with at least three.For low calcium, adjusted hazard ratios—measures of relative event rates—rose from 1.27 with one abnormal reading to 1.84 with at least three.

A cutaway heart with chaotic atrial marks sits beside mineral-sparse blood; a smaller heart has orderly marks beside mineral-rich blood.
Cohort · 95,492 peoplePopulations
AHA Scientific Sessions 2026 Abstract

Aging measures’ links to heart failure outcomes varied

In 3,194 people with heart failure, links between protein-based aging measures and outcomes varied with diabetes, high blood pressure and symptom severity.In 3,194 people with heart failure, links between protein-based aging measures and outcomes varied with diabetes, high blood pressure and symptom severity.

A heart cross-section with thick and thin muscle walls sits beside pale blood cells, dark folded proteins, and a group of small upright people.
Cohort · 3,194 peopleHeart failure
AHA Scientific Sessions 2026 Abstract

Calorie restriction reduced abnormal heart rhythms in obese mice

Calorie restriction producing 20% weight loss reduced time spent in an irregular heart rhythm to 22.7 seconds, versus 227 seconds in obese mice without weight loss.Calorie restriction producing 20% weight loss reduced time spent in an irregular heart rhythm to 22.7 seconds, versus 227 seconds in obese mice without weight loss.

A heart cross-section shows scattered fragments beside a plump mouse and orderly bands beside a slimmer mouse with a sparse food dish.
Mouse study · 8 miceDietary restriction
AHA Scientific Sessions 2026 Abstract

Pressure-related artery stiffness linked to stroke in hypertension

The pressure-related component was linked to 19% higher relative stroke risk per standard deviation, a measure of how much readings varied between participants.The pressure-related component was linked to 19% higher relative stroke risk per standard deviation, a measure of how much readings varied between participants.

A large taut artery sits beside a gray brain section with a gap, while a smaller curved artery accompanies a brain section with intact folds.
Cohort · 6,450 peopleStroke
AHA Scientific Sessions 2026 Abstract

Sleep problems’ link to cardiovascular deaths varied by risk

Sleep scores of one and two had adjusted hazard ratios of 0.907 and 1.117 versus zero, relative death-rate measures whose uncertainty ranges included no difference.Sleep scores of one and two had adjusted hazard ratios of 0.907 and 1.117 versus zero, relative death-rate measures whose uncertainty ranges included no difference.

A large opened heart sits among upright people, broken crescent moons, and smaller hearts and kidneys with smooth interiors on one side and gray patches…
Cohort · 33,661 peopleCardiovascular disease
AHA Scientific Sessions 2026 Abstract

Gene variant linked to heart changes without heart failure

Compared with noncarriers, people with one copy had 2.09 times the odds of reduced heart-pumping function; those with two copies had 11.03 times the odds.Compared with noncarriers, people with one copy had 2.09 times the odds of reduced heart-pumping function; those with two copies had 11.03 times the odds.

A heart cutaway holds a large pool of blood beside smaller, more contracted chambers holding less, with blood cells scattered around them.
Genetic association · 14,508 peopleBiomarkers
AHA Scientific Sessions 2026 Abstract

Suppressing an enzyme improved heart repair in newborn mice

In experiments in newborn mice, reducing SMURF2, an enzyme that tags proteins for breakdown, improved heart function and reduced scarring after heart injury.In experiments in newborn mice, reducing SMURF2, an enzyme that tags proteins for breakdown, improved heart function and reduced scarring after heart injury.

A heart cross-section with dense, repaired muscle sits beside a smaller heart with a gray scar, with a mouse and rat below.
Mouse studyMechanisms
AHA Scientific Sessions 2026 Abstract

AI model outperformed heart disease risk tools in US records

The model outperformed conventional methods, with one-year scores of 0.946 in TriNetX and 0.945 in eMERGE for distinguishing future cases from noncases.The model outperformed conventional methods, with one-year scores of 0.946 in TriNetX and 0.945 in eMERGE for distinguishing future cases from noncases.

Coronary artery cross-sections show thick plaque narrowing one opening and little plaque in the other, with small groups of people beneath them.
Computational studyBiomarkers
AHA Scientific Sessions 2026 Abstract

Blood protein score improves heart failure prediction

A 19-protein score achieved 0.80 versus 0.76 for clinical risk factors alone on a measure of how well it distinguished future heart failure cases.A 19-protein score achieved 0.80 versus 0.76 for clinical risk factors alone on a measure of how well it distinguished future heart failure cases.

Heart sections with enlarged and compact chambers sit beneath blood cells, folded proteins, and a small group of upright people.
Cohort · 52,483 peopleHeart failure
AHA Scientific Sessions 2026 Abstract

Blood protein linked to heart rhythm disorder and dementia

Each doubling of the blood protein osteopontin was linked to hazard ratios of 1.16 for atrial fibrillation and 1.30 for dementia.Each doubling of the blood protein osteopontin was linked to hazard ratios of 1.16 for atrial fibrillation and 1.30 for dementia.

A blood sample with dense and sparse protein ribbons sits between hearts with scattered or orderly shapes and brains with wider or narrower grooves.
Cohort studyIncident dementia
AHA Scientific Sessions 2026 Abstract

Blood sugar drugs linked to fewer heart and blood vessel events

At one year, users had a lower relative rate of major heart and blood vessel events than nonusers, with a hazard ratio of 0.40.At one year, users had a lower relative rate of major heart and blood vessel events than nonusers, with a hazard ratio of 0.40.

A whole heart beside a molecular chain and scarred kidney contrasts with a smaller damaged heart above an intact kidney.
Cohort studyInterventions
AHA Scientific Sessions 2026 Abstract

Heart-tracing model predicts two types of heart failure

In Massachusetts General Hospital’s test group, 10-year prediction scores were 0.87 for heart failure with reduced ejection fraction and 0.79 for preserved ejection…In Massachusetts General Hospital’s test group, 10-year prediction scores were 0.87 for heart failure with reduced ejection fraction and 0.79 for preserved ejection fraction.

Heart cutaways show a large, wide chamber beside a smaller, narrow chamber, surrounded by upright figures, one wearing chest electrodes.
Cohort studyHeart failure
AHA Scientific Sessions 2026 Abstract

Heart scan features better predicted atrial fibrillation

Scan features scored 0.83 versus 0.74 for a clinical risk score in distinguishing who developed the condition; 1 would mean perfect separation.Scan features scored 0.83 versus 0.74 for a clinical risk score in distinguishing who developed the condition; 1 would mean perfect separation.

A heart cross-section shows open chambers and dark irregular shapes in an upper chamber, with arching blood vessels and a small group of people beside it.
Cohort · 4,226 peopleIncident atrial fibrillation
AHA Scientific Sessions 2026 Abstract

Mouse model implicates vessel lining in inherited brain disease

Experiments compared mutant and control mice at 2 and 24 months, finding early changes in cells lining brain blood vessels.Experiments compared mutant and control mice at 2 and 24 months, finding early changes in cells lining brain blood vessels.

Brain blood vessels beside mice contrast a twisted, narrowed vessel with deposits and clustered inflammatory cells against a smooth, open vessel.
Mouse studyMechanisms
AHA Scientific Sessions 2026 Abstract

Artery shape improves aneurysm prediction beyond width

In validation data, a model using aortic shape scored 0.87 for risk ranking, compared with 0.82 for a model using diameter measurements.In validation data, a model using aortic shape scored 0.87 for risk ranking, compared with 0.82 for a model using diameter measurements.

A dark blue-green aorta with a bulging descending section sits beside a smaller, evenly shaped gray aorta and an open artery cross-section.
Cohort · 42,621 peopleAortic aneurysm
AHA Scientific Sessions 2026 Abstract

Hispanic adults with heart failure had lower death risk

The relative rate of death over five years was lower among Hispanic adults than matched non-Hispanic White adults, with a hazard ratio of 0.846.The relative rate of death over five years was lower among Hispanic adults than matched non-Hispanic White adults, with a hazard ratio of 0.846.

A heart cross-section sits between groups of upright figures; the denser dark blue-green group has a brain with a larger damaged patch than the gray group.
Cohort studyHeart failure
AHA Scientific Sessions 2026 Abstract

Heart scan analysis improved heart failure risk prediction

For 10-year heart failure prediction, a scan-based model scored 0.84 versus 0.72 for a clinical score in distinguishing future cases from people who remained unaffected.For 10-year heart failure prediction, a scan-based model scored 0.84 versus 0.72 for a clinical score in distinguishing future cases from people who remained unaffected.

Heart cross-section with open chambers and white flecks on nearby vessels, surrounded by smaller sections with varying chamber shapes.
Cohort · 4,182 peopleHeart failure
AHA Scientific Sessions 2026 Abstract

Liver protein lowered cholesterol in mouse experiments

Increasing the protein’s levels in mouse livers lowered blood cholesterol and liver fat, while removing it worsened cholesterol levels and fat buildup.Increasing the protein’s levels in mouse livers lowered blood cholesterol and liver fat, while removing it worsened cholesterol levels and fat buildup.

Liver cells with sparse fat droplets adjoin paler cells crowded with fat, with a laboratory mouse above them.
Mouse studyMechanisms
AHA Scientific Sessions 2026 Abstract

Vessel-cell enzyme helped drive artery plaque buildup in mice

Mice with high cholesterol developed less artery plaque when researchers deleted an enzyme from blood-vessel lining cells in experiments on disturbed blood flow.Mice with high cholesterol developed less artery plaque when researchers deleted an enzyme from blood-vessel lining cells in experiments on disturbed blood flow.

An opened artery with heavy plaque and a constricting loop sits beside a smaller artery with little plaque and a laboratory mouse.
Mouse studyMechanisms
AHA Scientific Sessions 2026 Abstract

Coronary artery disease shares genetic links with thinking

A genetic analysis identified 112 DNA regions linked to both coronary artery disease and traits related to thinking or education.A genetic analysis identified 112 DNA regions linked to both coronary artery disease and traits related to thinking or education.

Coronary artery cross-sections show a wide opening beside a plaque-narrowed opening, surrounded by branching brain cells, a vessel, and blood cells.
Mendelian randomizationMechanisms
AHA Scientific Sessions 2026 Abstract

Mice lacking a protein released by cells had lower blood pressure

Genetically altered mice also had lower levels of aldosterone, a hormone involved in blood pressure control, than unmodified controls.Genetically altered mice also had lower levels of aldosterone, a hormone involved in blood pressure control, than unmodified controls.

Adrenal gland cross-sections above small mice show sparse hormone shapes on one side and dense hormone shapes with dark protein clusters on the other.
Mouse studyMechanisms
AHA Scientific Sessions 2026 Abstract

Enzyme boost reduced scarring after heart attacks in mice

Experiments in adult mice found that increasing a growth-supporting enzyme promoted heart muscle cell division and improved heart function after a heart attack.Experiments in adult mice found that increasing a growth-supporting enzyme promoted heart muscle cell division and improved heart function after a heart attack.

Heart sections show thick muscle with little scarring and dividing cells beside thinner, heavily scarred muscle, with a laboratory mouse nearby.
Mouse studyInterventions
AHA Scientific Sessions 2026 Abstract

Blood protein patterns changed years before heart failure

More than 1,200 blood proteins were linked to future heart failure about 18 years before diagnosis, rising to about 3,600 closer to diagnosis.More than 1,200 blood proteins were linked to future heart failure about 18 years before diagnosis, rising to about 3,600 closer to diagnosis.

Blood plasma holds sparse and dense clusters of folded proteins, with a small heart cross-section and tangled fibers beside the denser cluster.
Cohort · 6,264 peopleMechanisms
AHA Scientific Sessions 2026 Abstract

Excess glucose breakdown hampers blood vessel repair in mice

Mice engineered to increase glucose breakdown in blood vessel–lining cells showed poorer blood-flow recovery and lower capillary density after hindlimb blood supply was…Mice engineered to increase glucose breakdown in blood vessel–lining cells showed poorer blood-flow recovery and lower capillary density after hindlimb blood supply was restricted.

Muscle tissue beside mice contrasts dense capillaries and intact fibers with sparse vessels, torn fibers, and fragmented mitochondria.
Mouse studyMechanisms