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The Editor at News-Medical.Net editor@news-medical.net

30 octobre, 2007 11:34

Medical Studies/Trials News Update from News-Medical.Net - 31st October 2007

Pre-op antibiotics prevent infection for wisdom teeth surger
http://www.news-medical.net/?id=31930
Patients who have their wisdom teeth pulled and do not take antibiotics before surgery are twice as likely to get an infection after the surgery than those who take a single dose of antibiotics shortly before surgery, says Eastman Dental Center researchersYan-Fang Ren, DDS, PhD, MPH and Hans Malmstrom, DDS.


Veterans' suicide study yields key findings
http://www.news-medical.net/?id=31927
The largest and most up-to-date study of suicides among depressed veterans provides important new data that may help guide screening and treatment for all veterans.


Most people living longer except rheumatoid arthritis sufferers
http://www.news-medical.net/?id=31919
New research by the Mayo Clinic has found that while most people are living longer the same is not true for sufferers from rheumatoid arthritis.


Government restrictions on weight loss surgeries limit access for poor, underinsured patients
http://www.news-medical.net/?id=31915
Thresholds limiting bariatric surgeries to high-volume centers disproportionately restrict access for poor and underinsured patients, populations which are among the most in need of them, an analysis led by UT Southwestern Medical Center researchers shows.


Comparison of mortality trends among rheumatoid arthritis subjects
http://www.news-medical.net/?id=31910
An autoimmune inflammatory disease that takes a progressive toll on the heart, kidney and liver as well as the joints, rheumatoid arthritis (RA) is associated with a high risk of early death.


Risk factors that may contribute to the onset of Amyotrophic Lateral Sclerosis
http://www.news-medical.net/?id=31908
Researchers in Rensselaer Polytechnic Institute's Social and Behavioral Research Lab (SBRL) are leading a study to investigate potential environmental, lifestyle, and medical variables that may contribute to the onset of Amyotrophic Lateral Sclerosis (ALS).


Visual field loss increases risk of falls in older adults
http://www.news-medical.net/?id=31913
Rockville, MD þu Visual field loss (specifically peripheral visual fields) is the primary vision component that increases the risk of falls, according to a study published this month in Investigative Ophthalmology and Vision Science, a peer-reviewed monthly publication of the Association for Research in Vision and Ophthalmology (ARVO).


Low-dose CT scanning detects cancers long before symptoms ever appear
http://www.news-medical.net/?id=31875
Early screening for lung cancer using non-invasive, low-dose CT scanning detects early stage cancers long before symptoms ever appear, according to results of a clinical study with 1,000 high-risk Canadian smokers.


Knowing risk can determine what kind of colon cancer screening is best
http://www.news-medical.net/?id=31893
While colonoscopy has become widely used for colorectal cancer screening, nearly two-thirds of screening colonoscopies show no cancer or pre-cancerous polyps.


Preventing lung scarring may extend lives of lung cancer patients
http://www.news-medical.net/?id=31894
Researchers have found that using a special type of drug called a pharmaceutical monoclonal antibody to block the integrin beta6-TGF-beta pathway prevents a serious side effect of radiation therapy for lung cancer patients - pulmonary fibrosis (scarring of the lungs), thereby extending patients' lives and improving their quality of life, according to a study presented at the Plenary I session on October 29, 2007, at the American Society for Therapeutic Radiology and Oncology's 49th Annual Meeting in Los Angeles.


Do statins make radiation more effective at curing prostate cancer?
http://www.news-medical.net/?id=31873
Patients with prostate cancer who receive high-dose radiation treatment and also take statin drugs commonly used to lower cholesterol have a 10 percent higher chance of being cured of their cancer at 10 years after diagnosis (76 percent), compared to those who don't take these medications (66 percent), according to a study presented at a scientific session October 31, 2007, at the American Society for Therapeutic Radiology and Oncology's 49th Annual Meeting in Los Angeles.


Which lung volumes to use for radiotherapy planning of lung cancer
http://www.news-medical.net/?id=31902
A new method to standardize the reporting of radiation dose volumes in the use of four-dimensional computed tomography (4D-CT) can lead to a more accurate radiation dose to the lungs in lung cancers, thereby lowering the risk of lung injury, according to a study presented at the Plenary I session on October 29, 2007, at the American Society for Therapeutic Radiology and Oncology's 49th Annual Meeting in Los Angeles.


Ethnic differences in sleep quality and blood pressure
http://www.news-medical.net/?id=31904
In the United States, African Americans have higher blood pressure and are at greater risk of hypertension than whites.


Relief for seasonal allergic rhinitis sufferers
http://www.news-medical.net/?id=31905
The results of a new Creighton University study may soon spell relief for some of the estimated 40 million Americans who suffer from seasonal allergic rhinitis (SAR) caused by pollens such as grass and ragweed.


Inhalant use and suicidality among incarcerated youth
http://www.news-medical.net/?id=31906
With suicide as the third leading cause of death among adolescents in the United States, a new University of Denver (DU) study reveals inhaling or "huffing" vapors of common household goods, such as glue or nail polish, are associated with increased suicidal thoughts and attempts.


Does no TV mean increased physical activity in teens?
http://www.news-medical.net/?id=31907
If young teenagers can't watch TV or play computer games, will they fill that time with physical activity?


Computer-based test to measure optimal visual acuity in age-related macular degeneration
http://www.news-medical.net/?id=31909
A computer-based method for evaluating the eye's ability to distinguish object details and shape in patients with age-related macular degeneration (AMD) could provide a more accurate way to assess the effectiveness of eye surgery or vision rehabilitation interventions with devices and training, according to a Canadian study.


New treatment option studied for bladder cancer
http://www.news-medical.net/?id=31889
A chemotherapy regimen for patients with advanced bladder cancer who aren't eligible for standard treatment is under study at the Medical College of Georgia.


Radiation plus chemo quadruples survival time for fatal brain cancer
http://www.news-medical.net/?id=31896
Over four times as many patients with a rapidly fatal type of brain cancer, glioblastoma multiforme (GBM), who are treated with the chemotherapy drug temozolomide (TMZ) and radiation therapy, can live for four years after diagnosis, compared to those who receive only radiation treatment, according to updated results of a large, international trial presented at the Plenary I session on October 29, 2007, at the American Society for Therapeutic Radiology and Oncology's 49th Annual Meeting in Los Angeles.


Injected dextrose solution helps ease chronic Achilles tendon pain
http://www.news-medical.net/?id=31912
Patients with chronic tendinosis of the Achilles tendon can experience a reduction in pain when injected with a small amount of a dextrose solution, according to a recent study conducted by researchers at St. Paul's Hospital in Vancouver, BC.


Study examines burden of epilepsy on quality of life
http://www.news-medical.net/?id=31895
A new study published in Epilepsia is the first to assess the prevalence of self-reported active epilepsy and health-related quality of life among adults with epilepsy in California.


Scientists use shared genome data to confirm SORL1 gene linked to Alzheimer's
http://www.news-medical.net/?id=31857
Until recently, only one of the approximately 30,000 genes in the human genome has been linked to risk of late-onset Alzheimer's disease (AD).


Deep brain stimulation to treat Parkinson's makes some act irrationally
http://www.news-medical.net/?id=31845
An implantable brain device meant to help Parkinson's disease patients better control their movements, has been found to have some worrying side-effects.


Organic food a far better health option
http://www.news-medical.net/?id=31843
The study involved researchers growing fruits and vegetables on a 725 acre area where fields were split into two so that conventional and organic produce could be grown side by side.


Positioning pelvic cancer patients on stomachs for radiation yields better results
http://www.news-medical.net/?id=31822
Oregon Health & Science University Cancer Institute researchers have found that positioning pelvic cancer patients on their stomachs rather than their backs is a better method for delivering radiation therapy.


Men with bladder exstrophy report robust sex lives, but women fare worse
http://www.news-medical.net/?id=31813
Adult men born with a severe urological anomaly in which the bladder forms outside of the abdomen report much more robust sexual lives than women born with the same condition, according to a small study led by urologists at the Johns Hopkins Children's Center.


Patient navigators help minority, low-income cancer patients get life-saving treatments
http://www.news-medical.net/?id=31819
Volunteers who guide low-income and minority cancer patients through cancer treatment, called lay patient navigators (LPN), help them to overcome major obstacles that prevent them from receiving quality care and achieving better outcomes, according to a study presented October 28, 2007, at the American Society for Therapeutic Radiology and Oncology's 49th Annual Meeting in Los Angeles.


Cancer patients not getting live-saving flu and pneumonia shots
http://www.news-medical.net/?id=31798
Although flu and pneumonia can be lethal for cancer patients, more than one quarter of patients undergoing radiation therapy are not complying with national guidelines to be vaccinated against these potentially life-threatening yet preventable illnesses, according to a study presented October 28, 2007, at the American Society for Therapeutic Radiology and Oncology's 49th Annual Meeting in Los Angeles.


Mindfulness-based stress reduction study
http://www.news-medical.net/?id=31800
A researcher at the University at Buffalo's Research Institute on Addictions (RIA) is initiating a study of "mindfulness-based stress reduction," a technique often used in behavioral medicine for stress reduction but not before as an adjunct in the treatment of alcohol use disorders.


Education program leads to lasting improvement of cancer knowledge in African Americans
http://www.news-medical.net/?id=31801
Disparities in access to health care and education hinder minorities and socioeconomically disadvantaged populations from receiving needed cancer services and often lead to delayed cancer diagnoses.


Surgery, radiation gives early survival advantage in bile duct cancer
http://www.news-medical.net/?id=31818
Oregon Health & Science University researchers are reporting the discovery of an early survival advantage when a combination of surgery and radiation therapy is used for patients with a rare but deadly bile duct cancer.


What is a critical lab value? it depends, Hopkins researchers find
http://www.news-medical.net/?id=31836
When it comes to lab tests, interpreting the clinical importance of an out-of-range result depends on how much experience a physician has, suggests research from the Johns Hopkins Children's Center.


Attenuation of NASH by stimulation of free fatty acid metabolism
http://www.news-medical.net/?id=31797
Medically-complicated obesity is a societal problem that needs to be solved. Liver disease, specifically non-alcoholic steatohepatitis or NASH, is just one of the many complications of increased body weight.


Shire announces data from a 12-month study of Daytrana for ADHD
http://www.news-medical.net/?id=31810
Shire plc has announced that data from a 12-month study of DAYTRANATM (methylphenidate transdermal system), the Attention Deficit Hyperactivity Disorder (ADHD) patch, demonstrated that DAYTRANA provided significant ADHD tolerability and symptom control improvement in children aged 6 to 12 years.


Highly targeted radiation therapy for prostate cancer prevents damage to surrounding organs
http://www.news-medical.net/?id=31805
Oregon Health & Science University Cancer Institute researchers have found that highly targeted radiation therapy for prostate cancer can ensure that the majority of persons with this tumor will not have any long-term rectal damage.


Obesity-related hormone is higher in children with Down syndrome
http://www.news-medical.net/?id=31817
Children with Down syndrome are more likely than their unaffected siblings to have higher levels of a hormone associated with obesity, according to pediatric researchers.


Integrated approach to IMRT provides quality care for head and neck cancer patients
http://www.news-medical.net/?id=31808
Results from a University of Pittsburgh study demonstrate that intensity-modulated radiation therapy (IMRT) for head and neck cancer can be uniformly delivered in a large health care system of academic and community cancer centers through a centralized planning and treatment process.


PET scans track small tumors after stereotactic body radiotherapy
http://www.news-medical.net/?id=31821
Readily available CT screening for lung cancer is increasing the discovery of small, primary lung cancers.


Advancement in radiation oncology treatment called IMRT improves care, avoids healthy tissue
http://www.news-medical.net/?id=31814
New advancements in a radiation oncology treatment called IMRT (intensity modulated radiation therapy) are proving far superior to standard radiation procedures used today in safeguarding the healthy tissues surrounding cancerous tumors, and thus improving patient care.


Potential early warning system for lung cancer identified
http://www.news-medical.net/?id=31774
The British Midlands Development Corporation announced that new research from The University of Nottingham has pinpointed a potential early warning system for lung cancer.


Blood markers can help choose best dose for antiangiogenic drugs
http://www.news-medical.net/?id=31784
Scientists at Sunnybrook have new information that may help to improve the use of anti-cancer drugs designed to block the growth of new blood vessels in tumors, a process called angiogenesis that is critical to tumor growth.


Lower frequency deep brain stimulation effective treatment for dystonia
http://www.news-medical.net/?id=31766
A Mount Sinai Medical Center study has found that lower frequency deep brain stimulation in young patients with primary torsion dystonia is as effective as higher frequency stimulation, which has been commonly used.


Why do some people solve problems more creatively than others?
http://www.news-medical.net/?id=31750
Are people who think creatively different from those who tend to think in a more methodical fashion?


HIV patients are actually sicker when they begin therapy
http://www.news-medical.net/?id=31760
It was hoped that as HIV treatment improved and as HIV-related public health initiatives encouraged people to be tested for the disease and seek care, that HIV-infected patients would seek care quickly.


Human decision-making linked to an individuals' need to maintain a homeostatic balance
http://www.news-medical.net/?id=31754
A researcher at the University of California, San Diego (UCSD) School of Medicine suggests that psychiatrists may need to approach the treatment of psychiatric patients from a new direction - by understanding that such individuals' behavior and decision-making are based on an attempt to reach an inner equilibrium.


Diffusion tensor imaging shows structural changes in mild traumatic brain injury
http://www.news-medical.net/?id=31763
Researchers report that diffusion tensor imaging can identify structural changes in the white matter of the brain that correlates to cognitive deficits even in patients with mild traumatic brain injury.


Valsartan might help prevent Alzheimer's disease
http://www.news-medical.net/?id=31755
Alzheimer disease (AD), a neurodegenerative disease that is the most common form of dementia, is characterized by the formation in the brain of plaques containing misfolded beta-amyloid protein.


Low-density lipoprotein may contribute to vascular diseases
http://www.news-medical.net/?id=31752
Low-density lipoprotein (LDL), a transporter of cholesterol, may also contribute to vascular diseases by a previously unidentified mechanism, according to a report published online this week in EMBO reports.


Infliximab scheduled treatment has proven to be an effective strategy in IBD patients
http://www.news-medical.net/?id=31764
Crohn's disease (CD) and ulcerative colitis (UC) are chronic-relapsing diseases, the clinical courses of which are characterized by periods of remission and periods of acute flare up, determining clinical symptoms which have a strong impact on the quality of life for patients.


Medical College of Wisconsin receives grant to study infantile hemangiomas
http://www.news-medical.net/?id=31767
The Food and Drug Administration (FDA) has awarded the Medical College of Wisconsin in Milwaukee a three-year, $1 million Orphan Products Development grant to study infantile hemangiomas - a vascular tumor of the skin or internal organs.


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