PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

Annals of Internal Medicine tip sheet for May 27, 2014

2014-05-27
(Press-News.org) 1. Task Force: Screen high-risk individuals for hepatitis B

The U.S. Preventive Services Task Force (USPSTF) recommends hepatitis B virus (HBV) screening for nonpregnant high-risk adolescents and adults, according to a recommendation statement being published in Annals of Internal Medicine. Up to 2.2 million people in the United States have chronic HBV, and 15 to 25 percent of those infected will die from liver disease or liver cancer. Screening for HBV could identify those who may benefit from treatment. Most people born in the United States have been vaccinated for HBV, which is the most effective way to prevent infection. However, there are some characteristics that put people at high risk. Those at high risk for HBV infection include persons born in countries with a high prevalence of HBV infection; U.S. citizens not vaccinated in infancy and whose parents are from a high-risk country; HIV-positive persons; injection drug users; those who have household contact with someone infected with HBV; and men who have sex with men. Researchers conducted a systematic review of published evidence to assess the benefits and harms of screening high-risk individuals for HBV. They conclude with moderate certainty that screening for HBV infection in high-risk individuals has moderate net benefit. The recommendation applies to asymptomatic, nonpregnant adolescents and adults who have not been vaccinated and other persons at high risk. This is an update to a 2004 recommendation. Previously, the USPSTF focused its recommendation on only the general population. The authors of an accompanying editorial express strong support for the new recommendations, but suggest that the guidelines should provide a clearer definition of "high-risk" to help busy clinicians apply these recommendations more easily in practice.

Note: The URL will go live at 5:00 p.m. on Monday, May 26 and can be included in news stories. For an embargoed PDF, please contact Megan Hanks or Angela Collom. To interview a member of the Task Force, please contact Nicole Raisch at newsroom@uspstf.net or 202-572-2044. To interview the author of the evidence review, please contact Todd Murphy at murphyt@ohsu.edu or 503-494-8231.



2. Postnatal immunoprophylaxis effective for preventing maternal transmission of hepatitis B

Postnatal prophylaxis is highly effective in preventing maternal transmission of hepatitis B virus (HBV) infection, according to an article being published in Annals of Internal Medicine. Approximately 24,000 HBV-infected women give birth annually in the United States, which makes their offspring an important at-risk population. The Centers for Disease Control and Prevention (CDC) recommends that pregnant women be screened for HBV and that infants of HBV-positive mothers receive immunoprophylaxis. Researchers studied health records for 4,446 infants born to 3,253 HBV-positive mothers between 1997 and 2010 to investigate the effectiveness of a contemporary immunoprophylaxis protocol administered in an integrated health services delivery organization. Adherence, follow-up testing, transmission rates, and maternal risk factors for transmission were evaluated. The researchers found that an organized program with high rates of prenatal screening, detection, and immunoprophylaxis with hepatitis B immunoglobin is effective at preventing perinatal transmission.

Note: The URL will go live at 5:00 p.m. on Monday, May 26 and can be included in news stories. For an embargoed PDF, please contact Megan Hanks or Angela Collom. To interview the lead author, please contact Janet Byron at Janet.L.Byron@kp.org or 510-891-3115.



3. Some transitional care interventions more effective than others for reducing mortality, readmissions after heart failure

Home-visiting programs and multidisciplinary heart failure (MDS-HF) clinic interventions reduce all-cause mortality and hospital readmissions following heart failure, according to an article being published in Annals of Internal Medicine. Structured telephone support (STS) reduced HF-specific mortality and readmission. HF is the leading cause of hospitalization and health care costs in the United States and up to 25 percent of patients hospitalized with HF are readmitted within 30 days. Researchers conducted a systematic review and meta-analysis of published research to assess the efficacy of various transitional care interventions intended to reduce readmission and mortality rates for adults hospitalized with HF. These included home-visiting programs, STS, telemonitoring (remote monitoring of vitals, etc.), outpatient clinic-based, primarily educational (self-care training delivered before discharge), and others that did not fit into a broader category, such as individual peer support. The researchers found that MDS-HF clinic interventions had the best evidence for reducing all-cause readmissions and mortality up to six months after hospitalization for HF. STS interventions proved effective for reducing HF-specific readmission and mortality.

Note: The URL will go live at 5:00 p.m. on Monday, May 26 and can be included in news stories. For an embargoed PDF, please contact Megan Hanks or Angela Collom. To interview the lead author, please contact Thania Benios at thania_benios@unc.edu or 919-962-8596.



4. Analysis shows cancer center ads heavy on emotion, light on information

Emotional reactions to cancer center consumer advertisements may lead to unrealistic expectations and inappropriate treatments, according to an article being published in Annals of Internal Medicine. Demand for cancer care is increasing rapidly in the United States and a growing number of cancer centers are marketing their clinical services directly to patients through consumer advertising. Researchers conducted a rigorous content review of 409 unique television and magazine advertisements for 102 cancer centers to characterize their informational and emotional content. The researchers assessed each ad for types of clinical services promoted, information provided about those services, use of emotional appeals, and the use of patient testimonials and disclaimers. The analysis showed that the majority of cancer centers (88 percent) promoted cancer treatments rather than screening (18 percent) or supportive services (13 percent). Ads tended promote benefits of advertised therapies more often than risks, with no specific data offered to support claims. Eighty-five percent of advertisements used emotional appeals that seemed to equate treatment with cure, and more often focused a cure (85 percent) rather than comfort, quality of life, or patient-centered care (43 percent). Patient testimonials were featured in about half of cancer center ads and the majority of those (79 percent) focused on stories about survival or cure. The authors suggest that cancer center ads that evoke emotions of fear and hope may lead patients to pursue care that is either unnecessary or unsupported by scientific evidence.

Note: The URL will go live at 5:00 p.m. on Monday, May 26 and can be included in news stories. For an embargoed PDF, please contact Megan Hanks or Angela Collom. To interview the lead author, please contact Andréa Stanford at stanfordac@upmc.edu or 412-647-6190.

INFORMATION: END


ELSE PRESS RELEASES FROM THIS DATE:

Inhaling hypertonic saline decreases hospital admissions in children with bronchiolitis

Inhaling hypertonic saline decreases hospital admissions in children with bronchiolitis
2014-05-26
A team of researchers, led by physicians from Children's Hospital Los Angeles, have found that infants with bronchiolitis who were treated with inhaled hypertonic saline in the emergency department (ED) were less likely to require admission to the hospital compared to infants treated with normal saline. The study, conducted at Children's Hospital Los Angeles and UCSF Benioff Children's Hospital Oakland, will be published in JAMA Pediatrics on May 26. Bronchiolitis is a respiratory infection common in infants and young children that results in approximately 150,000 ...

Hot flashes/night sweats solutions: Estrogen therapy vs. Venlafaxine

2014-05-26
BOSTON, MA – A new research study from Brigham and Women's Hospital (BWH) that compares low-dose oral estrogen and low-dose non-hormonal venlafaxine hydrochloride extended release (XR) to placebo were both found effective in reducing the number of hot flashes and night sweats reported by menopausal women. The study is the first clinical trial to simultaneously evaluate estrogen therapy (ET), known as the "gold standard" treatment for hot flashes and night sweats, and a non-hormonal treatment, venlafaxine, a first-line treatment in women who are unwilling or unable to ...

Conflicting conclusions in 2 bronchiolitis studies; editorial explains why

2014-05-26
Less Improvement in Infants with Bronchiolitis After Nebulized Hypertonic Saline Treatment Bottom Line: Children with bronchiolitis (a common respiratory tract infection that can result in hospitalization) who were treated in the emergency department showed less clinical improvement after receiving nebulized 3 percent hypertonic saline (HS) than infants who received normal saline (NS). Author: Todd A. Florin, M.D., M.S.C.E., of the Cincinnati Children's Hospital, and colleagues. Background: Nebulized HS has been shown to increase mucociliary clearance (the clearing ...

Ebola vaccine success highlights dilemma of testing on captive chimps to save wild apes

2014-05-26
The first conservation-specific vaccine trial on captive chimpanzees has proved a vaccine against Ebola virus is both safe and capable of producing a robust immune response in chimpanzees. This unprecedented study, published in the journal PNAS, shows that 'orphan' vaccines - which never complete the expensive licensing process for human use - can be co-opted for use on wildlife and might be a godsend for highly endangered species such as gorillas and chimpanzees, say researchers. They suggest that, by ending captive research in an effort to pay back an "ethical ...

From chaos to order: How ants optimize food search

2014-05-26
Ants are capable of complex problem-solving strategies that could be widely applied as optimization techniques. An individual ant searching for food walks in random ways, biologists found. Yet the collective foraging behaviour of ants goes well beyond that, as a mathematical study to be published in the Proceedings of the National Academy of Sciences reveals: The animal movements at a certain point change from chaos to order. This happens in a surprisingly efficient self-organized way. Understanding the ants could help analyze similar phenomena - for instance how humans ...

Relaxation helps pack DNA into a virus

Relaxation helps pack DNA into a virus
2014-05-26
Researchers at the University of California, San Diego have found that DNA packs more easily into the tight confines of a virus when given a chance to relax, they report in a pair of papers to be published in in the early edition of the Proceedings of the National Academy of Sciences the week of May 26 and the May 30 issue of Physical Review Letters. DNA is a long, unwieldy molecule that tends to repel itself because it is negatively charged, yet it can spool tightly. Within the heads of viruses, DNA can be packed to near crystalline densities, crammed in by a molecular ...

Breakthrough shows how DNA is 'edited' to correct genetic diseases

2014-05-26
An international team of scientists has made a major step forward in our understanding of how enzymes 'edit' genes, paving the way for correcting genetic diseases in patients. Researchers at the Universities of Bristol, Münster and the Lithuanian Institute of Biotechnology have observed the process by which a class of enzymes called CRISPR – pronounced 'crisper' – bind and alter the structure of DNA. The results, published in the Proceedings of the National Academy of Sciences (PNAS) today, provide a vital piece of the puzzle if these genome editing tools are ultimately ...

Sex-specific changes in cerebral blood flow begin at puberty, Penn study finds

Sex-specific changes in cerebral blood flow begin at puberty, Penn study finds
2014-05-26
PHILADELPHIA – Puberty is the defining process of adolescent development, beginning a cascade of changes throughout the body, including the brain. Penn Medicine researchers have discovered that cerebral blood flow (CBF) levels decreased similarly in males and females before puberty, but saw them diverge sharply in puberty, with levels increasing in females while decreasing further in males, which could give hints as to developing differences in behavior in men and women and sex-specific pre-dispositions to certain psychiatric disorders. Their findings are available in Proceedings ...

A mechanism of how biodiversity arises

A mechanism of how biodiversity arises
2014-05-26
AMHERST, Mass. – A new study of how biodiversity arises, by evolutionary biologists at the University of Massachusetts Amherst, shows how a mutation in a single gene during development can lead to different consequences not only in how animals' skull and jaw are shaped, but how this leads to different feeding strategies to exploit different ecological niches. The study in the cichlid fish model by Yinan Hu, a doctoral student in organismic and evolutionary biology, with his advisor Craig Albertson, is among the first to address how a single genetic change can influence ...

Implications of mandatory flu vaccinations for health-care workers

2014-05-26
Employers planning to implement mandatory influenza vaccination policies for health care workers need to understand the implications, according to an analysis published in CMAJ (Canadian Medical Association Journal). Vaccination rates among health care workers are less than 50%, well below the level necessary for herd immunity. Evidence indicates that vaccination of health care workers can benefit patient health, leading to a move by many to consider mandatory influenza vaccination as a condition of employment or to require employees to wear a mask during influenza season. ...

LAST 30 PRESS RELEASES:

The American Society of Tropical Medicine and Hygiene and the Bill & Melinda Gates Foundation announce new research fellowship in malaria genomics in honor of professor Dominic Kwiatkowski

Excessive screen time linked to early puberty and accelerated bone growth

First nationwide study discovers link between delayed puberty in boys and increased hospital visits

Traditional Mayan practices have long promoted unique levels of family harmony. But what effect is globalization having?

New microfluidic device reveals how the shape of a tumour can predict a cancer’s aggressiveness

Speech Accessibility Project partners with The Matthew Foundation, Massachusetts Down Syndrome Congress

Mass General Brigham researchers find too much sitting hurts the heart

New study shows how salmonella tricks gut defenses to cause infection

Study challenges assumptions about how tuberculosis bacteria grow

NASA Goddard Lidar team receives Center Innovation Award for Advancements

Can AI improve plant-based meats?

How microbes create the most toxic form of mercury

‘Walk this Way’: FSU researchers’ model explains how ants create trails to multiple food sources

A new CNIC study describes a mechanism whereby cells respond to mechanical signals from their surroundings

Study uncovers earliest evidence of humans using fire to shape the landscape of Tasmania

Researchers uncover Achilles heel of antibiotic-resistant bacteria

Scientists uncover earliest evidence of fire use to manage Tasmanian landscape

Interpreting population mean treatment effects in the Kansas City Cardiomyopathy Questionnaire

Targeting carbohydrate metabolism in colorectal cancer: Synergy of therapies

Stress makes mice’s memories less specific

Research finds no significant negative impact of repealing a Depression-era law allowing companies to pay workers with disabilities below minimum wage

Resilience index needed to keep us within planet’s ‘safe operating space’

How stress is fundamentally changing our memories

Time in nature benefits children with mental health difficulties: study

In vitro model enables study of age-specific responses to COVID mRNA vaccines

Sitting too long can harm heart health, even for active people

International cancer organizations present collaborative work during oncology event in China

One or many? Exploring the population groups of the largest animal on Earth

ETRI-F&U Credit Information Co., Ltd., opens a new path for AI-based professional consultation

New evidence links gut microbiome to chronic disease outcomes

[Press-News.org] Annals of Internal Medicine tip sheet for May 27, 2014