MedicineWorld.Org
Your gateway to the world of medicine
Home
News
Cancer News
About Us
Cancer
Health Professionals
Patients and public
Contact Us
Disclaimer

Medicineworld.org: Archives of health news blog


Go Back to the main health news blog

Subscribe To Health Blog RSS Feed  RSS content feed What is RSS feed?

Archives Of Health News Blog From Medicineworld.Org


March 31, 2009, 5:24 AM CT

How to retain more nurses?

How to retain more nurses?
A new research study, reported in the March/recent issue of the journal Nursing Economics, has determined what factors can help keep new nurses from leaving their jobs and in doing so save health systems money. When nurses leave for another position or retire early, it dramatically affects a hospital's bottom line as much as 5 percent of a hospital's budget may go to paying for nursing turnover costs.

The study, funded by the Robert Wood Johnson Foundation, reports on 1,933 newly licensed registered nurses working in hospitals in 34 states and Washington, DC. The scientists observed that nurses' intent to stay is influenced by their perceptions of their working conditions, specific workplace attributes, as well as their personal characteristics and available job opportunities.

"If nurses stay in their jobs, hospitals and the health care system will realize significant savings on costs linked to replacing nursing staff," said Christine Kovner, PhD, RN, FAAN, professor at New York University's College of Nursing and main author of the study. "More importantly, patient outcomes are at stake because when the nursing staff is destabilized by frequent resignations and high turnover, the disruption and inconsistency of service can have a negative impact on patient care and safety."........

Posted by: Janet      Read more         Source


March 31, 2009, 5:21 AM CT

Link Between Schizophrenia And Diabetes

Link Between Schizophrenia And Diabetes
People with schizophrenia are at increased risk for type 2 diabetes, Medical College of Georgia scientists have found.

In a study of 50 people newly-diagnosed with schizophrenia or a related psychotic disorder with no other known risk factors, 16 percent had either diabetes or an abnormal rate of glucose metabolism, says Dr. Brian Kirkpatrick, vice chair of the MCG Department of Psychiatry and Health Behavior. In a similar size control group of people without schizophrenia, none had signs of or had developed the disease.

People with diabetes cannot produce or properly use insulin, a hormone that converts glucose, starches and other food into energy.

"These findings point toward there being some shared environmental factors or genetic factors between the development of schizophrenia and diabetes," he says.

Dr. Kirkpatrick presented his findings at the International Congress on Schizophrenia Research in San Diego March 28-April 1.

Scientists have long suspected that schizophrenia led to an increased risk of diabetes, Dr. Kirkpatrick says.

To find out whether there was a link, he and his colleagues at the University of Barcelona in Spain and the University of Maryland administered a two-hour oral glucose test to patients who had still not been placed on anti-psychotic medication. Catching them before prescriptive therapy was important because scientists already knew that some of the most effective schizophrenia drugs also cause rapid weight gain - a risk factor for type 2 diabetes.........

Posted by: JoAnn      Read more         Source


March 31, 2009, 5:17 AM CT

New method to lower your triglycerides

New method to lower your triglycerides
Studies done with laboratory rats suggest that supplementation of their diet with lipoic acid had a significant effect in lowering triglycerides, which along with cholesterol levels and blood pressure are one of the key risk factors in cardiovascular disease.

In the lab animals, supplements of lipoic acid lowered triglyceride levels up to 60 percent. If the effect were the same in humans which is still not clear that would be a greater impact than found with other dietary supplements, and similar to the effects of some prescription drugs.

The results were just reported in the Archives of Biochemistry and Biophysics, a professional journal.

"The extent of triglyceride reduction was really dramatic, we didn't expect it to be this profound," said Regis Moreau, an assistant professor with the Linus Pauling Institute at Oregon State University. "The potential is good that this could become another way to lower blood triglycerides and help reduce the risk of atherosclerosis. It's pretty exciting".

Lipoic acid is a natural compound found at low levels in some foods, including red meat and green leafy vegetables. A powerful antioxidant, it's been of considerable research interest in recent years for its apparent ability to reduce mitochondrial decay in cells and perhaps slow the process of aging. And it's been used in Europe for decades as a therapy for the neuropathic complications of diabetes.........

Posted by: Daniel      Read more         Source


March 31, 2009, 5:12 AM CT

A cup of coffee before your morning workout

A cup of coffee before your morning workout
Stopping to smell the coffee and enjoy a cup of it before your morning workout might do more than just get your juices flowing. It might keep you going for reasons you haven't even considered.

As a former competitive cyclist, University of Illinois kinesiology and community health professor Robert Motl routinely met his teammates at a coffee shop to fuel up on caffeine previous to hitting the pavement on long-distance training rides.

"The notion was that caffeine was helping us train harder to push ourselves a little harder," he said.

The cyclists didn't know why it helped, they just knew it was effective.

"I think intuitively a lot of people are taking caffeine before a workout and they don't realize the actual benefit they're experiencing. That is, they're experiencing less pain during the workout," Motl said.

He said it's becoming increasingly common for athletes before competing to consume a variety of substances that include caffeine, motivated by "the notion that it will help you metabolize fat more readily".

"That research isn't actually very compelling," Motl said. "What's going on in my mind is people are doing it for that reason, but they actually take that substance that has caffeine and they can push themselves harder. It doesn't hurt as much".........

Posted by: JoAnn      Read more         Source


March 31, 2009, 5:09 AM CT

Too many CT scan could be harmful

Too many CT scan could be harmful
Patients who undergo numerous Computerized axial tomography scans over their lifetime appears to be at increased risk for cancer, as per a research studyreported in the recent issue of Radiology

"We observed that while most patients accrue small cumulative cancer risks, 7 percent of the patients in our study had enough recurrent CT imaging to raise their estimated cancer risk by 1 percent or more above baseline levels," said Aaron Sodickson, M.D., Ph.D., assistant director of Emergency Radiology at Brigham and Women's Hospital and researcher at the Center for Evidence-Based Imaging in Boston. "The techniques implemented in our study can be used to identify higher risk patients who might benefit from enhanced radiation protection efforts".

CT has proven to be a valuable clinical tool, and its use has grown rapidly. As per a 2008 IMV Medical Information Division report, approximately 68.7 million CT exams were performed in the U.S. in 2007, up from 62 million in 2006. CT provides detailed images of internal organs and is a common technique used to make medical diagnoses and help guide medical therapy decisions. However, CT uses a higher radiation dose than most other imaging exams.

For the study, the scientists developed new methodology to estimate cumulative CT radiation doses and associated radiation-induced cancer risks at the level of the individual patient, by extracting each patient's CT history from the electronic medical record and applying standard risk-estimation models that incorporate patient gender and age at exposure.........

Posted by: Janet      Read more         Source


March 31, 2009, 5:02 AM CT

How much that muscle mass can increase?

How much that muscle mass can increase?
Octogenarian women were unable to increase muscle mass after a 3-month weight lifting program targeted at strengthening the thigh muscle, as per a newly released study from the Journal of Applied Physiology. The results are surprising because prior studies have observed resistance training capable of increasing muscle mass, even for people who are into their 70s. An increase in muscle size translates to an increase in strength.

Still, the Ball State University study contained some good news: The octogenarians were able to lift more weight after the training program, likely because the nervous system became more efficient at activating and synchronizing muscles.

The American Physiological Society published the study, "Improvements in whole muscle and myocellular function are limited with high-intensity resistance training in octogenarian women." The scientists are Ulrika Raue, Dustin Slivka, Kiril Minchev and Scott Trappe.

Aim: Strengthen Octogenarian Thigh Muscle.



The experiment involved six women, all in their 80s, all of whom lived independently and came to the laboratory three times a week for three months. The women exercised on a machine designed to strengthen the thigh (quadriceps) muscle. They did three sets of 10 lifts, with a 2-minute rest period between sets.........

Posted by: JoAnn      Read more         Source


March 30, 2009, 5:28 AM CT

How autism skews developing brain?

How autism skews developing brain?
Individuals with autism spectrum disorders (ASD) tend to stare at people's mouths rather than their eyes. Now, an NIH-funded study in 2-year-olds with the social deficit disorder suggests why they might find mouths so attractive: lip-syncthe exact match of lip motion and speech sound. Such audiovisual synchrony preoccupied toddlers who have autism, while their unaffected peers focused on socially meaningful movements of the human body, such as gestures and facial expressions.

"Typically developing children pay special attention to human movement from very early in life, within days of being born. But in children with autism, even as old as two years, we saw no evidence of this," explained Ami Klin, Ph.D., of the Yale Child Study Center, who led the research. "Toddlers with autism are missing rich social information imparted by these cues, and this is likely to adversely affect the course of their development."

Klin, Warren Jones, Ph.D., and his colleagues at Yale, report the findings of their study, funded in part by the National Institute of Health's National Institute of Mental Health, online March 29, 2009 in the journal Nature

For the first time, this study has pinpointed what grabs the attention of toddlers with ASDs," said NIMH Director Thomas R. Insel, M.D. "In addition to potential uses in screening for early diagnosis, this line of research holds promise for development of new therapies based on redirecting visual attention in children with these disorders."........

Posted by: JoAnn      Read more         Source


March 30, 2009, 5:14 AM CT

Getting down to cancer basics

Getting down to cancer basics
Scientists have identified a new cancer gene - one that is common to a number of cancers and affects the most basic regulation of our genes. The new example - a gene on the X chromosome called UTX - is found in 10% of cases of multiple myeloma and 8% of esophageal cancers.

UTX plays a role in overall regulation of the activity of a number of genes and it is possible that other genes with similar roles will also be found to be involved in different tumor types. This is the first example of mutations in a gene of this functional class. The finding arose from a study of mutations in 4000 genes in kidney cancer.

"UTX is an important component of the transcriptional control machinery - it influences some of the most fundamental mechanisms controlling gene activity in our cells," explains Dr Andy Futreal, co-leader of the Cancer Genome Project at the Wellcome Trust Sanger Institute. "Unlike a number of cancer genes, UTX does not appear to be directly involved in cell division or cell death but in basic gene regulation and shows the depths to which cancers will plumb in order to get themselves ready to go".

The normal UTX protein modifies part of the structure holding DNA together in our cells. The composite DNAprotein structure, called chromatin, is not simply a scaffold, but plays an active role in controlling gene activity. The UTX protein alters a key organising subunit component of chromatin, called a histone. The protein is likely to be involved in both turning genes on and off, making it a key regulator of the yin-yang of gene control.........

Posted by: Janet      Read more         Source


March 30, 2009, 5:10 AM CT

Action video games improve vision

Action video games improve vision
This is a Pelli-Robson chart showing decreasing contrast from upper left to lower right. True contrast varies between monitors.
To learn whether high-action games could affect contrast sensitivity, Bavelier, in collaboration with graduate student Renjie Li and his colleagues Walt Makous, professor of brain and cognitive sciences at the University of Rochester, and Uri Polat, professor at the Eye Institute at Tel Aviv University, tested the contrast sensitivity function of 22 students, then divided them into two groups: One group played the action video games "Unreal Tournament 2004" and "Call of Duty 2." The second group played "The Sims 2," which is a richly visual game, but does not include the level of visual-motor coordination of the other group's games. The volunteers played 50 hours of their assigned games over the course of 9 weeks. At the end of the training, the students who played the action games showed an average 43% improvement in their ability to discern close shades of grayclose to the difference she had previously observed between game players and non-game playerswhereas the Sims players showed none.

"To the best of our knowledge, this is the first demonstration that contrast sensitivity can be improved by simple training," says Bavelier. "When people play action games, they're changing the brain's pathway responsible for visual processing. These games push the human visual system to the limits and the brain adapts to it, and we've seen the positive effect remains even two years after the training was over".........

Posted by: Mike      Read more         Source


March 30, 2009, 5:07 AM CT

Molecular interplay that moves cancer cells

Molecular interplay that moves cancer cells
Based on research that reveals new insight into mechanisms that allow invasive tumor cells to move, scientists at the Mayo Clinic campus in Florida have a new understanding about how to stop cancer from spreading. A cancer that spreads elsewhere in the body, known as metastasis, is the process that most often leads to death from the disease.

In the March 29 online issue of Nature Cell Biology, scientists say that a molecule known as protein kinase D1 (PKD1) is key to the ability of a tumor cell to "remodel" its structure, enabling it to migrate and invade. The scientists observed that if PKD1 is active, tumor cells cannot move, a finding they say explains why PKD1 is silenced in some invasive cancers.

During metastasis, invasive cancer cells respond to biological signals to move away from a primary tumor. Multiple research groups at Mayo Clinic in Florida are particularly interested in this process. One team, led by cancer biologist Peter Storz, Ph.D., has been investigating a process known as actin remodeling at the leading edge - the most forward point - of these migrating tumor cells.

"The events that reorganize the actin cytoskeleton at the leading edge are complex a multitude of molecules act in concert," Dr. Storz says. "But it appears that PKD1 must be turned off if cancer cells are to migrate".........

Posted by: Janet      Read more         Source



Older Blog Entries   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20   21   22   23   24   25   26   27   28   29   30   31   32   33   34   35   36   37   38   39   40   41   42   43   44   45   46   47   48   49   50   51   52   53   54   55   56   57   58   59   60   61   62   63   64   65   66   67   68   69   70   71   72   73   74   75   76   77   78   79   80   81   82   83   84   85   86   87   88   89   90   91   92   93   94   95   96   97   98   99   100   101   102   103   104   105   106   107   108   109   110   111   112   113   114   115   116   117   118   119   120   121   122   123   124   125   126   127   128   129   130   131   132   133   134   135   136   137   138   139   140   141   142   143   144   145   146   147   148   149   150   151   152   153   154   155   156   157   158   159   160   161   162   163   164   165   166   167   168   169   170   171   172   173   174   175   176   177   178   179   180   181   182   183   184   185   186   187   188   189   190   191   192   193   194   195   196   197   198   199   200   201   202   203   204   205   206   207   208   209   210   211   212   213   214   215   216   217   218   219   220   221   222   223   224   225   226   227   228   229   230   231   232   233   234   235   236   237   238   239   240   241   242   243   244   245   246   247   248   249   250   251   252   253   254   255   256   257   258   259   260   261   262   263   264   265   266   267   268   269   270   271   272   273   274   275   276   277   278   279   280   281   282   283   284   285   286   287   288   289   290   291   292   293   294   295   296   297   298   299   300   301   302   303   304   305   306   307   308   309   310   311   312   313   314   315   316   317   318   319   320   321   322   323   324   325   326   327   328   329   330   331   332   333   334   335   336   337   338   339   340   341   342   343   344   345   346   347   348   349   350   351   352   353   354   355   356   357   358   359   360   361   362   363   364   365   366   367   368   369   370   371   372   373   374   375   376   377   378   379   380   381   382   383   384   385   386   387   388   389   390   391   392   393   394   395   396   397   398   399   400   401   402   403   404   405   406   407   408   409   410   411   412   413   414   415   416   417   418   419   420   421   422   423   424   425   426   427   428   429   430  

Did you know?
Studies in monkeys and women suggest that unlike traditional estrogen therapy, a diet high in the natural plant estrogens found in soy does not increase the risk of uterine cancer in postmenopausal women, according to Mark Cline, D.V.M., Ph.D., an associate professor of comparative medicine at Wake Forest University Baptist Medical Center.

Medicineworld.org: Archives of health news blog

Acute bacterial meningitis| Alzheimer's disease| Carpal tunnel syndrome| Cerebral aneurysms| Cerebral palsy| Chronic fatigue syndrome| Cluster headache| Dementia| Epilepsy seizure disorders| Febrile seizures| Guillain barre syndrome| Head injury| Hydrocephalus| Neurology| Insomnia| Low backache| Mental retardation| Migraine headaches| Multiple sclerosis| Myasthenia gravis| Neurological manifestations of aids| Parkinsonism parkinson's disease| Personality disorders| Sleep disorders insomnia| Syncope| Trigeminal neuralgia| Vertigo|

Copyright statement
The contents of this web page are protected. Legal action may follow for reproduction of materials without permission.