Studies

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News • Tumor analysis

Immune response to ovarian cancer may predict survival

A group of international cancer researchers led by investigators from Mayo Clinic and University of New South Wales Sydney has found that the level of a type of white blood cell, called tumor-infiltrating lymphocytes, present in the tumors of patients with high-grade ovarian cancer may predict a patient’s survival. “We know that a type of tumor-infiltrating lymphocyte called cytotoxic CD8 are…

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News • Pediatrics study

Higher vitamin D dose increases bone density in premature babies

Results of a University of Nebraska Medical Center study found if the standard supplementation of 400 IUs of vitamin D is increased to 800 IUs daily there are reductions in the number of premature and preterm babies with extremely low bone density. Physicians have been prescribing vitamin D in premature and preterm infants in neonatal intensive care units (NICU) to prevent rickets, a disease…

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News • Study

Risk factors on rise among people with stroke

Despite prevention efforts, researchers have found a significant increase over a 10-year period in the percentage of people with stroke who have high blood pressure, diabetes, smoking and other risk factors for stroke. “An estimated 80 percent of all first strokes are due to risk factors that can be changed, such as high blood pressure, and many efforts have been made to prevent, screen for and…

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News • Side effects

Do common acid reflux medications promote chronic liver disease?

Approximately 10 percent of the general population take a proton pump inhibitor (PPI) drug to block stomach acid secretions and relieve symptoms of frequent heartburn, acid reflux and gastroesophageal reflux disease. That percentage can be as much as seven times higher for people with chronic liver disease. Researchers at University of California San Diego School of Medicine have discovered…

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News • Study

How to decrease the discard rate of donated organs

A new study indicates that many donated organs that are discarded might be suitable for transplantation if certain steps are taken to limit damage following donation. The findings appear in an upcoming issue of the Journal of the American Society of Nephrology (JASN). In most cases in the United States, transplant organs come from donors following brain death, in which all the functions of the…

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News • Medication quality

No clear evidence that most new cancer drugs extend or improve life

The majority of cancer drugs approved in Europe between 2009 and 2013 entered the market without clear evidence that they improved survival or quality of life for patients, finds a study published by The BMJ. Even where drugs did show survival gains over existing treatments, these were often marginal, the results show. Many of the drugs were approved on the basis of indirect (‘surrogate’)…

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News • Smoking study

Years of life could be saved if smokers switched to e-cigarettes

Up to 6.6 million premature deaths could be prevented in the US if smokers switched to e-cigarettes over a ten year period, suggests a study published in Tobacco Control, and those smokers who switched to vaping would live for a collective total of up to 86.7 additional million years. A research team, led by Dr David Levy at Georgetown University Medical Center in Washington DC, modelled the…

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News • Predicting cognitive decline

Odor identification problems may be a warning bell for dementia

A long-term study of nearly 3,000 adults, aged 57 to 85, found that those who could not identify at least four out of five common odors were more than twice as likely as those with a normal sense of smell to develop dementia within five years. Although 78 percent of those tested were normal – correctly identifying at least four out of five scents – about 14 percent could name just three out…

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News • Personalized medication

Opioids often overprescribed

In a review of half a dozen published studies in which patients self-reported use of opioids prescribed to them after surgery, researchers at Johns Hopkins report that a substantial majority of patients used only some or none of the pills, and more than 90 percent failed to dispose of the leftovers in recommended ways.

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News • Virus study

Close contact not at fault for Zika spread

Saliva is no way to pass a Zika virus infection. According to researchers at the University of Wisconsin–Madison who conducted studies with monkeys, casual contact like kissing or sharing a fork or spoon is not enough for the virus to move between hosts.

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News • Long-term support

Stroke: Lethal risk even without complications

People who survive a stroke or a mini-stroke without early complications have an increased risk of death, another stroke or heart attack (myocardial infarction) for at least 5 years following the initial stroke, found a new study published in the Canadian Medical Association Journal.

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News • Exposure study

Got eye freckles? The sun might be to blame

In a study well-timed for summer, vision scientists have found that eye freckles, dark spots on the colored part of the eye (iris), are more frequently found in people with higher lifetime exposure to sunlight. While not malignant, eye freckles could indicate the presence or risk of sunlight-triggered eye diseases like cataract or macular degeneration.

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