How bacteria to resist human immune defensesScientists at the National Institute of Allergy and Infectious Diseases (NIAID), a component of the National Institutes of Health, have discovered a survival mechanism in a common type of bacteria that can cause illness. The mechanism lets the bacteria protect itself by warding off attacks from antimicrobial peptides (AMPs), which are defense molecules sent by the body to kill bacteria.
Bacteria are divided into two types, gram-positive and........Go to the Infectious disease blog (Added on 6/7/2007 7:35:38 PM)
New Contributor To Aggressive CancersMutations in the cell adhesion molecule known as integrin alpha 7 (integrin 7) lead to unchecked tumor cell proliferation and a significantly higher incidence in cancer spread, or metastasis, in several cancer cell lines, report scientists at the University of Pittsburgh School of Medicine in a study being published recently in the Journal of the National Cancer Institute. These findings suggest that integrin 7 represents an important new........Go to the Cancer-blog (Added on 6/6/2007 10:01:55 PM)
Colonoscopy up in NYCMore New Yorkers are getting life-saving colonoscopies than ever before, the Health Department announced recently, and people of all races and incomes are benefiting. The test which can detect, prevent, or cure colorectal cancer is generally recommended once every decade for people 50 and older, and earlier for those with a family history of the disease. Four years ago, only 43% of New Yorkers age 50 and older had been screened during the........Go to the Colon-cancer-blog (Added on 6/6/2007 10:00:41 PM)
Organic Food Miles take toll on environmentOrganic fruit and vegetables may be healthier for the dinner table, but not necessarily for the environment, a University of Alberta study shows.
The study, conducted by a team of student scientists in the Department of Rural Economy at the University of Alberta in Edmonton, Canada, showed that the greenhouse gas emitted when the produce is transported from great distances mitigates the environmental benefits of growing the food organically.........Go to the Society medical news blog (Added on 6/6/2007 9:53:56 PM)
New Bacterium That Cause Of Trench FeverA close cousin of the bacterium that debilitated thousands of World War I soldiers has been isolated at UCSF from a patient who had been on an international vacation. The woman, who has since recovered, suffered from symptoms similar to malaria or typhoid fever, two infections that can occur in returning travelers.
But genetic detective work revealed that she was infected with a new bacterium that had never before been isolated from a human.........Go to the Infectious disease blog (Added on 6/6/2007 9:17:36 PM)
Clues to Working MemoryA newly discovered interplay of cells in one of the brain's memory centers sheds light on how you recall your grocery list, where you laid your keys, and a host of important but fleeting daily tasks.
Researchers at Weill Cornell Medical College say their experiments with common goldfish are uncovering the secrets of a form of short-term recall known as "working memory".
"We've now identified a mechanism that can organize the activity of........Go to the Neurology news blog (Added on 6/6/2007 9:13:11 PM)
Old memory traces in brain may trigger chronic painWhy do so a number of people continue to suffer from life-altering, chronic pain long after their injuries have actually healed".
The definitive answer -- and an effective therapy -- has long eluded scientists. Traditional analgesic drugs, such as aspirin and morphine derivatives, havent worked very well.
A Northwestern University researcher has found a key source of chronic pain appears to be an old memory trace that essentially gets........Go to the Psychology news blog (Added on 6/5/2007 12:31:31 AM)
Diagnosing skin cancers with light, not scalpelsIn an early step toward nonsurgical screening for cancerous skin cancers, Duke University chemists have demonstrated a laser-based system that can capture three-dimensional images of the chemical and structural changes under way beneath the surface of human skin.
"The standard way physicians do a diagnosis now is to cut out a mole and look at a slice of it with a microscope," said Warren Warren, the James B. Duke Professor of chemistry,........Go to the Cancer-blog (Added on 6/5/2007 12:24:14 AM)
African-American men understimate risk of prostate cancerA number of African-American men radically underestimate the likelihood that having a needle biopsy for suspected prostate cancer will result in a cancer diagnosis, as per a research studyfrom the University of Chicago Medical Center.
The researchers, who presented their results at the American Society of Clinical Oncology annual meeting in Chicago, say this is alarming. African-American men have a higher incidence rate, are diagnosed later,........Go to the Prostate-cancer-blog (Added on 6/5/2007 12:12:32 AM)
Children innately prepared to learn languageTo learn a language is to learn a set of all-purpose rules that can be used in an infinite number of ways. A new study shows that by the age of seven months, human infants are on the lookout for abstract rules and that they know the best place to look for such abstractions is in human speech.
In a series of experiments appearing in the recent issue of Psychological Science, a journal of the Association for Psychological Science, Gary Marcus........Go to the Pediatric news blog (Added on 6/5/2007 12:09:59 AM)
Innovative Smallpox Vaccine Research StudyUniversity Hospitals Case Medical Center (UHCMC) and Case Western Reserve University School of Medicine are part of a nationwide research study to determine the safety and effectiveness of a new smallpox vaccine geared toward adults ages 18 to 34 who have never been vaccinated against the disease. The study is the first of its type in Northeast Ohio.
The current FDA-approved vaccine, Dryvax®, is not recommended for use on everyone........Go to the Infectious disease blog (Added on 6/1/2007 9:37:42 PM)
Nursing Home Placement And Cognitive Decline in Alzheimer's DiseasePeople with Alzheimer's disease experience an acceleration in the rate of cognitive decline after being placed in a nursing home as per a new study by the Rush Alzheimer's Disease Center. The study, reported in the recent issue of the American Journal of Psychiatry, finds that previous experience in adult day care may lessen this association.
The observational study involved 432 older persons with Alzheimer's disease who were recruited from........Go to the Psychology news blog (Added on 5/31/2007 11:46:22 PM)
Cigarette smoke alters DNA in spermThe science has long been clear that smoking causes cancer, but new research shows that children could inherit genetic damage from a father who smokes.
Canadian scientists have demonstrated in mice that smoking can cause changes in the DNA sequence of sperm cells, alterations that could potentially be inherited by offspring. The results of their study are reported in the June 1 issue of Cancer Research, a journal of the American Association........Go to the Cancer-blog (Added on 5/31/2007 11:42:20 PM)
Drinking Sugar-Sweetened Beverages between MealsResearch to date has been inconclusive on whether drinking sugar-sweetened beverages between meals increases childrens risk of becoming overweight. Scientists at the University of Ottawa Institute of Population Health say sugar-sweetened drinks can have a negative effect on pre-school children.
The scientists studied the frequency of sugar-sweetened beverage consumption between meals of more than 1,900 children living in Quebec, Canada.
........Go to the Diabetes-watch-blog (Added on 5/31/2007 11:40:16 PM)
'Nurse cells' make life and death decisions"Nurse cells" play an important role in deciding which developing infection-fighting cells, called T cells, live and which die, as per research funded by the National Science Foundation (NSF) and published in the recent issue of the journal Experimental Biology and Medicine.
The infection-fighting cells, known as thymocytes or T cells, live in the thymus, an organ in the upper portion of the chest. Loss of the thymus results in severe........Go to the Infectious disease blog (Added on 5/30/2007 12:03:44 AM)
Potential for a broadly-protective HIV vaccineNew research conducted at the Uniformed Services University of the Health Sciences (USU) suggests that it may be possible to develop a vaccine that protects against the myriad strains of the HIV virus. HIV is extremely variable, so an effective vaccine may need to stimulate the body to produce cross-reactive antibodies that will neutralize multiple viral strains. These results demonstrate that induction of truly broad-spectrum neutralizing........Go to the Infectious disease blog (Added on 5/29/2007 11:54:09 PM)
Alcohol use during pregnancyPreterm delivery, and especially "extreme prematurity" defined as less than 32 weeks of gestation are major contributors to perinatal sickness and death worldwide. A new study has observed that maternal alcohol use during pregnancy can contribute to a substantial increase in risk for extreme preterm delivery.
Results are reported in the recent issue of Alcoholism: Clinical & Experimental Research
"Preterm birth has increased in part........Go to the OBGYN news blog (Added on 5/25/2007 7:31:03 PM)
Babies able to tell through visual cuesAt four months, babies can tell whether a speaker has switched to a different language from visual cues alone, as per a University of British Columbia study.
Researcher Whitney Weikum observed that infants are able to discern when a different language is spoken by watching the shapes and rhythm of the speaker's mouth and face movements.
The findings suggest that older infants, raised in a monolingual environment, no longer need this........Go to the Pediatric news blog (Added on 5/25/2007 7:25:56 PM)
Coffee may lower blood uric acid levelsHigh uric acid levels in the blood are a precursor of gout, the most common inflammatory arthritis in adult men. It is believed that coffee and tea consumption may affect uric acid levels but only one study has been conducted to date. A new large-scale study reported in the June 2007 issue of Arthritis Care & Research (http://www.interscience.wiley.com/journal/arthritiscare) examined the relationship between coffee, tea, caffeine intake, and........Go to the Rheumatology news blog (Added on 5/25/2007 7:09:23 PM)
Binge Drinking Among College StudentsPeople addicted to alcohol and young adults who are heavy drinkers, but not considered alcoholics, have something in common: they possess poor decision-making skills, as per psychology experts at the University of Missouri-Columbia. The findings are based on research examining binge drinking and heavy alcohol use among college students.
The study was led by Anna E. Goudriaan, a former postdoctoral student in the College of Arts........Go to the Society medical news blog (Added on 5/25/2007 3:40:15 PM)
Cochlear Implant Restores HearingScientists at Georgetown University Medical Center and the National Institutes of Health (NIH) have, for the first time, used a "bionic" ear to restore hearing in a patient with von Hippel-Lindau disease. They say this advance offers new hope for individuals with the rare disorder, which can produce non-cancerous tumors in ears, as well as in the eyes, brain, and kidneys.
The advance was possible, scientists say, because their years of........Go to the ENT news blog (Added on 6/7/2007 7:34:03 PM)
Growth in ADHD medicationsAttention deficit hyperactivity disorder (ADHD) has been traditionally viewed as a childhood disorder, while ADHD in adults has been underdiagnosed and undertreated. A recent study shows that therapy rates have been increasing in all age groups, and improved identification has contributed to rapidly growing therapy rates for adults. Female patients show the greatest increase of all.
The study, published by SAGE in the recent issue of the........Go to the Psychology news blog (Added on 6/7/2007 7:11:26 PM)
Insights Into Anti-malarial Drug ResistanceScientists at Georgetown University Medical Center say they are moving closer to understanding why the most lethal form of human malaria has become resistant to drug therapy in the past three decades. They have been able to artificially construct, and then express in yeast, a protozoan gene that contributes to such resistance. And it was no small feat. The gene they laboriously constructed over a two-year period is thought to bethe largest........Go to the Infectious disease blog (Added on 6/6/2007 9:57:35 PM)
Talcum powder stunts growth of lung tumorsTalcum powder has been used for generations to soothe babies diaper rash and freshen womens faces. But University of Florida scientists report the household product has an additional healing power: The ability to stunt cancer growth by cutting the flow of blood to metastatic lung tumors.
The study, reported in the European Respiratory Journal in April, reveals that talc stimulates healthy cells to produce endostatin, a hormone considered the........Go to the Lung-cancer-blog (Added on 6/6/2007 9:50:30 PM)
The Fragile X Mental Retardation ProteinScientists in the Department of Obstetrics, Gynecology & Reproductive Sciences at Yale School of Medicine have identified a new regulatory target for the Fragile X mental retardation protein (FMRP), laying the groundwork for possible new therapys for Fragile X syndrome(FXS), the leading inherited form of mental retardation.
The findings, reported in the early online edition of the June Proceedings of the National Academy of Sciences, also........Go to the Psychology news blog (Added on 6/6/2007 9:29:43 PM)
Better Ways To Preserve Human Eggs And Ovarian TissueThe goal is to make human eggs, ovarian tissue, blood vessels, even whole organs available when needed.
To get there, scientists are directly comparing slow-freezing techniques, used successfully for decades to preserve sperm and embryos, to a more rapid method of cryopreservation that transforms tissues into durable glass-like structures.
Phase I trials under way at the Medical College of Georgia are comparing the two approaches in human........Go to the OBGYN news blog (Added on 6/6/2007 9:15:56 PM)
Seniors' Plans For End-of-life CareAs a brain-damaged woman named Terri Schiavo lived her final days in 2005, her family's bitter feuding imparted a tragic lesson about the importance of specifying one's wishes for end-of-life medical therapy.
Yet, beyond headline-grabbing cases such as Schiavo's, what truly motivates people to plan for medical care at life's end" With record numbers of Americans - the Baby Boom generation - now reaching age 60, we still know surprisingly........Go to the Society medical news blog (Added on 6/6/2007 9:10:14 PM)
Divorce increases risk of Ritalin useDivorce puts children at higher risk of Ritalin use in comparison to kids whose parents stay together, says new research by a University of Alberta sociologist, who cautions that this doesnt necessarily mean that divorce is harmful to a child. The study appears in this weeks issue of the Canadian Medical Association Journal.
Dr. Lisa Strohschein observed that there is a significantly higher risk of Ritalin usenearly twice as highfor children........Go to the Psychology news blog (Added on 6/5/2007 12:29:12 AM)
Pancreatic Surgery Riskier for Obese PatientsObesity may contribute to a greater likelihood of post-operative complications for patients having pancreatic surgery, a surgeon at Thomas Jefferson University Hospital has found.
A study of 202 pancreatic surgeries from 2000 to 2005 indicates obese patients had an increased time on the operating table, blood loss, length of hospital stay and rate of serious complications in comparison to normal weight individuals, said Adam Berger, M.D.,........Go to the Weight watcher's blog (Added on 6/5/2007 12:20:49 AM)
Low libido in menopause linked to trouble sleepingWomen whose sexual desire diminishes during menopause are more likely to report disturbed sleep, depression symptoms, and night sweats, as per Group Health research in the June American Journal of Obstetrics and Gynecology.
To the best of the research teams knowledge, this marks the first time that sleep disturbance has been independently linked to diminished sexual desire during or after menopause.
The paper is based on data from Group........Go to the Psychology news blog (Added on 6/5/2007 12:11:11 AM)
psychotherapy For Borderline personality disorderAn intensive form of talk treatment, known as transference-focused psychotherapy (TFP), can help individuals affected with borderline personality disorder (BPD) by reducing symptoms and improving their social functioning, as per an article in the recent issue of the American Journal of Psychiatry, a premier psychiatry journal.
BPD, a chronic and disabling condition affecting about 1% of the United States population, has long defied........Go to the Psychology news blog (Added on 6/5/2007 12:08:57 AM)
Improves recovery for elderly with depressionAdding a medicine to a standard therapy regimen for major depressive disorder in the elderly improves chances of recovery in those who do not adequately respond to the first-course treatment or who relapse from it, finds a University of Pittsburgh School of Medicine study reported in the recent issue of the American Journal of Psychiatry, the official journal of the American Psychiatric Association. Up to 84 percent of the elderly who........Go to the Psychology news blog (Added on 5/31/2007 11:48:02 PM)
vitamin B6. B12 and folate, may decrease pancreatic cancer riskScientists exploring the notion that certain nutrients might protect against pancreas cancer observed that lean individuals who got most of these nutrients from food were protected against developing cancer. The study also suggests this protective effect does not hold true if the nutrients come from vitamin supplements.
As per a research findings reported in the June 1 issue of Cancer Research, a journal of the American Association for........Go to the Pancreatic cancer blog (Added on 5/31/2007 11:43:44 PM)
Yin, Yang And Alzheimer's diseaseScientists at Rensselaer Polytechnic Institute are challenging current thinking on the causes and prevention of Alzheimers disease, offering a new hypothesis that could be the key to preventing this form of dementia. The scientists have observed that a specific imbalance between two peptides may be the cause of the fatal neurological disease that affects more than five million people in the United States.
"We have observed that two peptides,........Go to the Neurology news blog (Added on 5/30/2007 12:12:37 AM)
A living memory chipA new experiment has shown that it's possible to store multiple rudimentary memories in an artificial culture of live neurons. The ability to record information in a manmade network of neurons is a step toward a cyborg-like integration of living material into memory chips. The advance also may help neurologists to understand how our brains learn and store information.
Itay Baruchi and Eshel Ben-Jacob of Tel-Aviv University used an array of........Go to the Neurology news blog (Added on 5/29/2007 11:56:45 PM)
Dentists need more training in oral cancer detectionMore than 92 percent of Illinois dentists provide oral cancer examinations for their patients, but a number of are not performing the procedures thoroughly or at optimum intervals, as per a new University of Illinois at Chicago study.
With an incomplete understanding of the nature of pre-cancerous lesions and of proper examination techniques, some dentists in Illinois "are not doing all they should be doing to detect oral cancers in their........Go to the Cancer-blog (Added on 5/29/2007 11:52:19 PM)
Both alcohol and neighborhood characteristicsWhile heavy drinking has consistently been associated with an increased risk of intimate partner violence (IPV), a new study has observed that both drinking patterns and neighborhood characteristics can contribute in different ways to mutual IPV among married/cohabiting adults in the general population.
Results are reported in the recent issue of Alcoholism: Clinical & Experimental Research
The link between heavy drinking and increased........Go to the Psychology news blog (Added on 5/25/2007 7:28:50 PM)
Limiting eligibility for medical studiesA new analysis has observed that a number of alcohol therapy studies are designed in ways that inadvertently omit women and African-Americans from participation. The Stanford University School of Medicine researcher who led the effort said the findings should remind all researchers that strict study eligibility criteria can have unintended, negative consequences.
In reviewing data from a pool of 100,000 alcohol therapy patients, Keith........Go to the Society medical news blog (Added on 5/25/2007 7:20:55 PM)
Aggressive treatment for whiplash no benefitWhiplash, the most common traffic injury, leads to neck pain, headache and other symptoms, resulting in a significant burden of disability and health care utilization. Eventhough there are few effective therapys for whiplash, a growing body of evidence suggests that the type and intensity of therapy received shortly after the injury have a long-lasting influence on the prognosis. A new study reported in the June 2007 issue of Arthritis Care &........Go to the Rheumatology news blog (Added on 5/25/2007 7:13:50 PM)
Experimental gene therapy 'abolishes' arthritis painEarly-stage research has observed that a new gene treatment can nearly eliminate arthritis pain, and significantly reduce long-term damage to the affected joints, as per a research studypublished recently in the journal Arthritis and Rheumatism. While the study was done in mice, they are the first genetically engineered to develop osteoarthritis like humans, with the same genetic predisposition that makes some more likely to develop the........Go to the Rheumatology news blog (Added on 5/25/2007 3:38:04 PM)