Prevalence of iron deficiency, iron-deficiency anemia in females ages 12-21

JAMA

2023-06-27

(Press-News.org) About The Study: Among 12- to 21-year-old U.S. females between 2003 and 2020, iron deficiency affected almost 40% and iron deficiency anemia affected 6%, with variation by the ferritin or hemoglobin thresholds used. Menstruation was a risk factor for both, but more than one-quarter of premenarchal individuals had iron deficiency.

Authors: Angela C. Weyand, M.D., of the University of Michigan Medical School in Ann Arbor, is the corresponding author.

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

(doi:10.1001/jama.2023.8020)

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.

# # #

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/jama/fullarticle/10.1001/jama.2023.8020?guestAccessKey=5e01eda1-2b8b-47f8-9ff8-5126024bd77e&utm_source=For_The_Media&utm_medium=referral&utm_campaign=ftm_links&utm_content=tfl&utm_term=062723

END

ELSE PRESS RELEASES FROM THIS DATE:

Team proposes a new view on euchromatin in the cell

2023-06-27

In their paper the team discusses their novel view of euchromatin in the cell and shows how the revealed organization is relevant to genome functions. “Our ultimate goal is to reveal how genomic information is searched and read out in living cells,” said Kazuhiro Maeshima, a leading author and a professor with the National Institute of Genetics and SOKENDAI, Japan. Chromatin describes the combination of DNA and proteins in the cells of humans and other eukaryotes. According to typical textbook models, chromatin occurs in two forms— euchromatin, that is less condensed and can be transcribed, and heterochromatin, that is more condensed and usually not transcribed. ...

Monitoring British bats can help identify coronaviruses with pathogen potential

2023-06-27

Researchers who found novel coronaviruses in UK bats say genetic surveys of the viruses should be regularly conducted, even if none of those viruses can infect humans yet. Working with a network of bat conservationists, a research team led by Imperial College London and University College London researchers screened faecal samples from UK bats for coronaviruses. Their results, published today in Nature Communications, report circulation of four species of coronaviruses, including two novel ones, among the 16 UK bat species sampled. While some of these ...

Chemical imbalance in the forebrain discovered in people with obsessive-compulsive disorder

2023-06-27

Using a high-powered MRI scanner, scientists have discovered an imbalance between neurochemicals in parts of OCD patients’ brains key to decision-making and habit. Chemical imbalances were related to OCD symptom severity, as well as habitual tendencies in a decision-making task. A similar but less pronounced neurochemical imbalance was also detected in healthy individuals with milder compulsive tendencies. Neuroscientists argue that the findings are a “major piece of the puzzle” in understanding OCD, and could open up new ...

Researchers develop new base editing tools using AI-predicted protein structure clustering

2023-06-27

GAO Caixia's group from the Institute of Genetics and Developmental Biology of the Chinese Academy of Sciences has pioneered the use of artificial intelligence (AI)-assisted methods to discover novel deaminase proteins with unique functions through structural prediction and classification. This approach has opened up a range of applications for the discovery and creation of desired plant genetic traits. The results were published in Cell. The discovery of new proteins and the exploitation of diverse engineered enzymes have contributed to the rapid advancement of biotechnology. Currently, efforts to mine novel proteins ...

New study sheds light on the evolution of animals

2023-06-27

Key points: Scientists have been mystified as to why animals are missing in much of the fossil record; Researchers have developed a new method to determine if animals really were absent during certain geological eras, or if they were present but too fragile to be preserved; The findings establish a new maximum point at which animals first evolved on Earth. A study led by the University of Oxford has brought us one step closer to solving a mystery that has puzzled naturalists since Charles Darwin: when did animals first appear in the history of Earth? The results have been published ...

Associations between socioeconomic status, obesity, cognition, and white matter microstructure in children

2023-06-27

About The Study: Neighborhood and household contexts were associated with white matter development in children, and findings suggested that obesity and cognitive performance were possible mediators in these associations. Future research on children’s brain health may benefit from considering these factors from multiple socioeconomic perspectives. Authors: Scott Marek, Ph.D., and Tamara Hershey, Ph.D., of the Washington University in St. Louis School of Medicine, are the corresponding authors. To access the embargoed study: Visit our For ...

Humans' ancestors survived the asteroid impact that killed the dinosaurs

2023-06-27

A Cretaceous origin for placental mammals, the group that includes humans, dogs and bats, has been revealed by in-depth analysis of the fossil record, showing they co-existed with dinosaurs for a short time before the dinosaurs went extinct. The catastrophic destruction triggered by the asteroid hitting the Earth resulted in the death of all non-avian dinosaurs in an event termed the Cretaceous-Paleogene (K-Pg) mass extinction. Debate has long raged among researchers over whether placental mammals were present alongside the dinosaurs before the mass extinction, ...

Poverty negatively impacts structural wiring in children’s brains, study indicates

2023-06-27

A new study from Washington University School of Medicine in St. Louis suggests that growing up in poverty may influence the wiring of a child’s brain. The study, published June 27 in JAMA Network Open, indicates a link between both neighborhood and household poverty and the brain’s white matter tracts, which allow for communication between brain regions. White matter plays a critical role in helping the brain process information. The findings stem from the largest long-term study of brain development and child health conducted in the U.S. — ...

BioOne extends partnership with the Entomological Society of America to preserve and disseminate entomological research spanning 100+ years

2023-06-27

WASHINGTON, D.C., June 27, 2023 – A trove of more than 160 eBooks in insect science is now available on the BioOne Digital Library, through an extension of BioOne’s partnership with the Entomological Society of America (ESA). With the launch of the ESA eBook Collection, BioOne and ESA have partnered to source, digitize, and make fully searchable critical books from ESA’s catalog. Through this collaboration, BioOne and ESA share a commitment to make scientific research more accessible with the preservation of over 100 years ...

Human embryo-like models created from stem cells to understand earliest stages of human development

2023-06-27

Cambridge scientists have created a stem cell-derived model of the human embryo in the lab by reprogramming human stem cells. The breakthrough could help research into genetic disorders and in understanding why and how pregnancies fail. Published today in the journal Nature, this embryo model is an organised three-dimensional structure derived from pluripotent stem cells that replicate some developmental processes that occur in early human embryos. Use of such models allows experimental modelling ...

Children’s Hospital of Philadelphia and Children’s Hospital Colorado researchers conduct first prospective study of pediatric EoE patients and disease progression

Prevalence of iron deficiency, iron-deficiency anemia in females ages 12-21

ELSE PRESS RELEASES FROM THIS DATE:

LAST 30 PRESS RELEASES: