♫ February 26th, 2011 2:32 am
Abnormalities of red cell membrane cation permeability are seen in several hereditary disorders. These dominantly inherited conditions are collectively called the hereditary stomatocytoses and allied disorders. This class of hemolytic anemias is clinically diverse. See image above.
Overhydrated hereditary stomatocytosis (OHSt), also called hydrocytosis, was the first of these disorders to be described. An abnormally increased cation influx results in swollen erythrocytes, hemolysis, and stomatocytes. At the other end of the spectrum, net loss of cations and water results in dehydrated hereditary stomatocytosis (DHSt), which is also called xerocytosis.
Intermediate syndromes that are asymptomatic or have mixed features, such as cryohydrocytosis (CHC) and familial pseudohyperkalemia (FP), have also been described.
CHC has been linked to mutations in the band chloride-bicarbonate exchanger AE1.3 DHSt and most cases of FP have been mapped to the 16q23-24 genetic locus. Some cases of OHSt have been linked to mutations in the Rh-associated Glycoprotein (RHAG),and decreases in stomatin, or protein, are thought to be a trafficking alteration.
Tags: hydrocytosis, Xerocytosis
♫ Posted in Hematologic | No Comments »
♫ February 25th, 2011 11:24 pm
Researchers have identified and described a network of mutated genes and gene processes that, together, contribute to fatal brain tumors.
Dr. Markus Bredel is the director of the Brain Tumor Institute Research Program at Northwestern University’s Feinberg School of Medicine in Chicago and co-author of two related papers in the July 15 issue of the Journal of the American Medication Association.
He said, “There is not a single gene that accounts for the development of brain tumors. It’s the concert of those genes and the interaction of those genes that ultimately determine the progression of cancer.”
Tags: Brain Cancer, Brain Tumor
♫ Posted in Brain Tumors | No Comments »
♫ February 25th, 2011 3:46 am
Wherever you are, whether an office, classroom or social event, count the number of women in the room – and one in eight will have breast cancer in their lifetime. If you don’t know anyone who has had breast cancer, the statistic may not mean so much, but it should. Although it is linked to genetics, like any disease it does not know the boundaries of a genetic line. It could be you, or someone close.
The great news is that there are things you can actively do to limit your chances of breast cancer. This month is National Breast Cancer Awareness Month, so it is a great time to learn more and take steps to reduce your risk. Following are some key things you can do, according to the American Cancer Society:
. Catch it before it catches you. Do monthly self exams. Get annual mammograms. This is especially important for women over 40. For women in their 20s and 30s, clinical breast exams should be done at least every 3 years.
. Eat right. Eat a healthy diet, and try to control your weight. Obesity raises breast cancer risk.
. Get up and Move. Regular exercise, at least 30 minutes a day, 5 days a week, helps reduce the risk.
. Talk to you doctor. Perhaps most important, be sure to talk to your doctor if you notice any changes in your breasts or have any other concerns. Err on the side of caution.
Tags: Breast Cancer Risk, Clinical Breast
♫ Posted in Breast Cancers | No Comments »
♫ February 24th, 2011 11:27 pm
Brain tumor symptoms vary from one patient to another and most of these symptoms can also affect people who do not have brain tumors. Some of the symptoms of tumors are headaches which is thee most common, seizures which may be caused by other things like epilepsy, stroke, trauma and other disorders of the body. These symptoms should not be ignored at all time. Other symptoms are nausea and vomiting but are also non-specific unless they are accompanied by other symptoms that causes brain tumor.
The patient has vision or hearing problems, weaknesses of arms, leg and facial muscles. In addition, behavioral and cognitive problems are also common.
Tags: Brain, Symptoms Of Tumors
♫ Posted in Brain Tumors | No Comments »