Butter and plant-based oils intake and mortality

JAMA Internal Medicine

2025-03-06

(Press-News.org) About The Study: In this cohort study, higher intake of butter was associated with increased mortality, while higher plant-based oils intake was associated with lower mortality. Substituting butter with plant-based oils may confer substantial benefits for preventing premature deaths.

Corresponding Author: To contact the corresponding author, Dong D. Wang, MD, ScD, email dow471@mail.harvard.edu.

To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/

(doi:10.1001/jamainternmed.2025.0205)

Editor’s Note: Please see the article for additional information, including other authors, author contributions and affiliations, conflict of interest and financial disclosures, and funding and support.

# # #

Media advisory: The full study and commentary are linked to this news release. This study is being presented at the American Heart Association EPI/Lifestyle Scientific Sessions 2025.

Embed this link to provide your readers free access to the full-text article This link will be live at the embargo time https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/10.1001/jamainternmed.2025.0205?guestAccessKey=29d87feb-9f96-4666-b23b-8a9487d0207d&utm_source=For_The_Media&utm_medium=referral&utm_campaign=ftm_links&utm_content=tfl&utm_term=030625

END

ELSE PRESS RELEASES FROM THIS DATE:

20% of butterflies in the U.S. have disappeared since 2000

2025-03-06

BINGHAMTON, N.Y. -- Butterflies are beloved creatures that inspire art and play an important ecological role, but you might have noticed less of them brightening your day in recent years. According to new research featuring faculty at Binghamton University, State University of New York, these cherished insects are disappearing at an alarming rate. A new study published in Science examines butterfly data in the United States, and the results are troubling. Looking across 76,000 surveys, the study revealed that butterfly abundance fell by 22% between 2000 and 2020. To put it starkly: for every five butterflies in the U.S. ...

Bacterial ‘jumping genes’ can target and control chromosome ends

2025-03-06

ITHACA, N.Y. -- Transposons, or “jumping genes” – DNA segments that can move from one part of the genome to another – are key to bacterial evolution and the development of antibiotic resistance. Cornell University researchers have discovered a new mechanism these genes use to survive and propagate in bacteria with linear DNA, with applications in biotechnology and drug development. In a paper under embargo in Science until 2pm ET on March 6, 2025, researchers show that transposons can target and insert themselves at the ends ...

Scientists identify genes that make humans and Labradors more likely to become obese

2025-03-06

Researchers studying British Labrador retrievers have identified multiple genes associated with canine obesity and shown that these genes are also associated with obesity in humans. The dog gene found to be most strongly associated with obesity in Labradors is called DENND1B. Humans also carry the DENND1B gene, and the researchers found that this gene is also linked with obesity in people. DENND1B was found to directly affect a brain pathway responsible for regulating the energy balance in the body, called the leptin melanocortin pathway. An additional four genes associated with canine obesity, ...

Early-life gut microbes may protect against diabetes, research in mice suggests

2025-03-06

The microbiome shapes development of insulin-producing cells in infancy, leading to long-term changes in metabolism and diabetes risk, new research in mice has found. The results could ultimately help doctors reduce the risk of type 1 diabetes—or potentially even restore lost metabolic function in adulthood—by providing specific gut microbes that help the pancreas grow and heal. The findings are published in Science. The critical window Mice that are exposed to broad-spectrum antibiotics in early life have worse metabolic health in the long term, the researchers found. If the mice received antibiotics during a 10-day window shortly after birth, they developed ...

Study raises the possibility of a country without butterflies

2025-03-06

Butterflies are disappearing in the United States. All kinds of them. With a speed scientists call alarming, and they are sounding an alarm. A sweeping new study published in Science for the first time tallies butterfly data from more than 76,000 surveys across the continental United States. The results: between 2000 and 2020, total butterfly abundance fell by 22% across the 554 species counted. That means that for every five individual butterflies within the contiguous U.S. in the year 2000, there were only four in 2020. “Action must be taken,” ...

Study reveals obesity gene in dogs that is relevant to human obesity studies

2025-03-06

Dogs are a compelling model of human obesity, in part because they develop obesity due to similar environmental influences as people. In a genome-wide association study (GWAS) of Labrador retrievers, researchers have identified an obesity-related gene – DENND1B – that may also influence obesity in humans. These findings highlight the value of using non-traditional animal models to study complex diseases and highlight the gene’s potential as a target for future obesity research across species. Obesity is a ...

A rapid decline in US butterfly populations

2025-03-06

Butterfly populations across the United States are in alarming decline, according to a new study, with total abundance falling by 22% in just 20 years. Such widespread and worrisome losses portend broader environmental threats and emphasize the urgent need for conservation action. “Our national-scale findings paint the most complete – and concerning – picture of the status of butterflies across the country in the early 21st century,” write the authors. The decline of biodiversity has been extensively documented worldwide. Among these losses, the decline of insects is particularly ...

Indigenous farming practices have shaped manioc’s genetic diversity for millennia

2025-03-06

A new genomic study reveals how Indigenous traditional farming practices have shaped the evolution of manioc – one of the world’s most important staple crops – for the better. The domestication of plants and the rise of agriculture were transformative events in human history. Today, a few staple crops provide most human calories, including manioc (cassava or yuca), a vital root crop that sustains nearly a billion people across the tropics. Although it ranks as the world’s seventh most significant crop, manioc is primarily cultivated on small farms. The plant’s ...

Controlling electrons in molecules at ultrafast timescales

2025-03-06

Scientists at YOKOHAMA National University, in collaboration with RIKEN and other institutions in Japan and Korea, have made an important discovery about how electrons move and behave in molecules. This discovery could potentially lead to advances in electronics, energy transfer, and chemical reactions. Published in the Journal, Science, their study reveals a new way to control the distribution of electrons in molecules using very fast phase-controlled pulses of light in the terahertz range. Atoms and molecules contain negatively charged electrons that usually stay in specific energy levels, like layers, ...

Tropical forests in the Americas are struggling to keep pace with climate change

2025-03-06

Embargoed until 14:00 US Eastern Time, Thursday 6 March 2025 Tropical forests in the Americas are struggling to keep pace with climate change Tropical rainforests play a vital role in global climate regulation and biodiversity conservation. However, a major new study published in Science reveals that forests across the Americas are not adapting quickly enough to keep pace with climate change, raising concerns about their long-term resilience. The research, led by Dr. Jesús Aguirre-Gutiérrez from the University of Oxford’s Environmental Change Institute (ECI), involved over 100 scientists ...

Inhibition of cyclooxygenase-2 upregulates the nuclear factor erythroid 2-related factor 2 signaling pathway to mitigate hepatocyte ferroptosis in chronic liver injury

Butter and plant-based oils intake and mortality

ELSE PRESS RELEASES FROM THIS DATE:

LAST 30 PRESS RELEASES: