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Helping adolescents understand the consequences of risky sexual behavior

By Guest PostJanuary 29, 2014Healthadolescents, consequence, deepa camenga, helen dodson, hiv, kimberly hieftje, krzysztof duda, lindsay duncan, lynn fiellin, medicine, pregnancy, risky sexual behavior, sex, sexual activity, sexually transmitted infections, understand, united states, yale school

Both parents and health care providers wonder: What is the best way to get through to adolescents about the dangers of risky sexual behavior? Research by investigators from Yale School of Medicine and the Yale play2PREVENT Lab finds that both positive and negative messaging may influence adolescent behavior. The study is published online in the journal Health Education Research.

The researchers write that 48% of high school students have had sex, and 6% had sex by the age of 13. Beginning sexual activity at an early age increases the risk of multiple partners, unwanted pregnancy, and sexually transmitted infections. A full half of all new sexually transmitted infections in the United States occur in individuals aged 15 to 25. (more…)

Another Yale Nobel: Robert Shiller

By Guest PostOctober 15, 2013Economy, Education21 thinkers, 21st century, alfred nobel, american economic review, asset prices, bob shiller, born in detroit, case shiller, die zeit, economic sciences, empirical analysis, eugene fama, german newspaper, home price, irrational exuberance, jim rothman, lars peter hansen, management, MIT, nobel prize, professor of economics, real estate index, robert shiller, social psychologist, university of chicago, university of michigan, university of minnesota, university of pennsylvania, yale nobel, yale school, yale university

Robert J. Shiller, the Sterling Professor of Economics at Yale University, has been awarded a Nobel Prize in Economic Sciences. He shares the award — formally, the 2013 Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel — with Eugene F. Fama and Lars Peter Hansen from the University of Chicago. According to the Nobel committee, the three were honored “for their empirical analysis of asset prices.”

Shiller, whose name became a household word with the wide use of the Case-Shiller Home Price real estate Index, came to national prominence with the publication in 2000 of “Irrational Exuberance.” The book, which quickly became a bestseller, described speculative bubbles fueled by mass misinformation and herd instinct, and accurately predicted the dot.com implosion. As early as 2003, Shiller warned of the housing market collapse, and later wrote a precept for recovery, “Subprime Solution: How the Global Financial Crisis Happened and What to Do about It.” (more…)

Recognizing America’s number one killer of women

By Guest PostMay 22, 2013Healthchronic disease, epidemiology, heart attack, judith lichtman, public health, risk, yale school, yale university, younger women

Judith Lichtman, associate professor of chronic disease epidemiology at the Yale School of Public Health, discusses the risk of heart attacks for younger women. *Source: Yale University

Stemming Russia’s HIV Epidemic

By Guest PostMarch 21, 2013Healthblood borne pathogens, bmc public health, clean syringes, disease, district level, drug users, factor, hiv epidemic, hiv prevalence, hiv-positive, pharmacies, public health, public health sector, robert heimer, russia, sex partners, social costs, social structures, st. petersburg, state university, transmission, unsafe injection practices, virus, yale school

Clean Syringes Often Unavailable in St. Petersburg, YSPH Research Finds

Russia’s HIV epidemic is among the fastest growing in the world and injection drug users who often share needles and other supplies are hardest hit. This occurs even though pharmacies are a legal source for clean syringes and can sell them without restriction.

A recent study led by the Yale School of Public Health and St. Petersburg State University mapped the city’s 965 pharmacies and compared their locations and density to HIV prevalence at the district level. (more…)

Human Cognition Depends Upon Slow-Firing Neurons

By Guest PostFebruary 26, 2013Sciencealzheimer's disease, amy arnsten, any sensory stimulation, brain circuits, clear thinking, cognitive deficits, dementia, disease, Environment, firing of neurons, glutamate signaling regulate, good mental health, hallmark, human cognition, john krystal, mathematical models, medicine, mental sketch pad, min wang, molecular basis, nao j gamo, neuronal firing, new york university, nmda nr2b receptors, prefrontal cortex, receptors, schizophrenia, street drug, types of nmda, xiao jing wang, yale neurobiologist, yale school, yang yang

Good mental health and clear thinking depend upon our ability to store and manipulate thoughts on a sort of “mental sketch pad.” In a new study, Yale School of Medicine researchers describe the molecular basis of this ability — the hallmark of human cognition — and describe how a breakdown of the system contributes to diseases such as schizophrenia and Alzheimer’s disease.

“Insults to these highly evolved cortical circuits impair the ability to create and maintain our mental representations of the world, which is the basis of higher cognition,” said Amy Arnsten, professor of neurobiology and senior author of the paper published in the Feb. 20 issue of the journal Neuron. (more…)

Costly Breast Cancer Screenings Don’t Add up to Better Outcomes

By Guest PostJanuary 22, 2013Healthanees chagpar, breast cancer, breast cancer incidence, brigid killelea, cary gross, copper team, cost of screening, geographic regions, heather gold, jama network publication, jessica long, joseph ross, mammography, maysa abu khalaf, medicine, rong wang, screenings, treatment, united states, variation, xiaomei ma, yale cancer center, yale school

Even though Medicare spends over $1 billion per year on breast cancer screenings such as a mammography, there is no evidence that higher spending benefits older women, researchers at Yale School of Medicine found in a study published Online First by JAMA Internal Medicine, a JAMA Network publication.

Led by Dr. Cary Gross, associate professor of internal medicine at Yale School of Medicine and director of the Cancer Outcomes, Public Policy, and Effectiveness Research (COPPER) Center at Yale, the study sought to provide a comprehensive understanding of breast cancer expenditures that incorporate the cost of screening and associated work-up, as well as treatment. They assessed overall national costs, as well as variation in costs across geographic regions. (more…)

Teens Who Smoke and Drink May be More Likely to Abuse Prescription Opioids Later

By Guest PostAugust 27, 2012Culture, Healthabuse, adolescents, alcohol, cigarette, david fiellin, drink, drug use, gateway hypothesis, jeanette tetrault, lynn fiellin, marijuana, medicine, national survey, opioid abuse, prescription opioids, rani hoff, smoke, teens, william becker, yale school, young men, young women

Adolescents who smoke cigarettes or use alcohol or marijuana may be at greater risk for subsequent abuse of prescription opioids as young adults, according to a new study by Yale School of Medicine.

The researchers believe their findings are the first to demonstrate that early alcohol, cigarette, and marijuana use are all associated, to varying degrees, with a two- to-three times greater likelihood of subsequent abuse of prescription opioids. The study appears online in the Journal of Adolescent Health. (more…)

A Revealing Hand

By Guest PostJune 3, 2012Health, Scienceaustralia, biomarker, blood, blue laser light, brenda cartmel, chronic disease epidemiology, diabetes, electron, fiberoptic probe, fruit, heart disease, lycopene, macular degeneration, molecule, new technology, north dakota, nutrition research, prototype device, resonance raman spectroscopy, retina, rrs, serum, skin, skin biopsy, skin carotenoids, stephanie scarmo, susan t mayne, telltale substances, university of utah, vegetable, vegetable intake, yale school

What did you have for lunch yesterday? How many times a month do you eat nuts? How about your kids — how many servings of vegetables did they consume today?

It’s no secret that it is hard to recall the details of our meals, and that frustrating fact lies at the heart of nutrition research, complicating the task of linking foods to health outcomes like diabetes and heart disease. Some researchers look instead for telltale substances, or biomarkers, in the body that give information about how much of a certain type of food a person has eaten recently. But that solution isn’t ideal, as measuring biomarkers often requires blood, urine or even skin samples. The process can be costly, painful and cumbersome. (more…)

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