January 24th, 2009
Aplastic Anemia is unusual hematologic disease which simptomps a human bone marrow failure syndromes. A few decades ago this disease still highly speculative review for its therapy, but now aplastic anemia can be cured by stem-cell transplantation or immunosuppressive drug therapy. As said, this Aplastic Anemia was considered heterogenous in origin and virtually impossible to have a systematical study.
As decades by, the understanding of aplastic anemia has developed into a unified immune mechanism of hematopoetic-cell destruction, which also informed an effective immunosuppressive therapies for it. The researchers had have a more unified and logical view of its pathophysiology. It has been understood in its relation to other related marrow failure syndroms and also said that an unusual blood syndrome can model more common autoimmune disease of another organs systems. And the result is aplastic anemia now had been able to cure in most patients, either on high-quality clinical trials and mechanistics insights from the experimental laboratory.
Immunosuppression or stem-cell transplantation are definitive therapies for severe aplastic anemia. In severe condition, the usage of immunosuppression therapy is because of lack of histocompatible sibling donors, patient age, and the immediate cost of transplantation. The combination of antithymocite globulin and cyclosporine had been used by most specialist based on the outcomes of relatively large studies performed in the 1990s. The blood count can be maintenanced with very low doses of cyclosporin-as cyclosporine has many side effects such the levels of this drug are undetectable and minimal in its toxicity even with years of treatment.
As conclusion, quantitative and practical measurements of oligoclonal T-cell activity and of hematopoietic stem-cell number and function would allow laboratory testing to guide treatment decisions. Ultimately, definition of genetic risk factors, affecting hematopoietic-cell function and the immune response, will clarify how agents in the environment initiate and perpetuate the marrow destruction of aplastic anemia.
You can have a read this medical journal in its full text article. As Neal S. Young, Rodrigo T Calado, and Phillip Schneinberg from the Hematology Branch, National Heart, Lung, and Blood Institute, National Institute of Health (NIH), Bethesda, MD are the writter of this article, this article had its first prepublished online as Blood First Edition Paper, June 15, 2006.
Filed in Blood,Internal Medicine,Onkology,Stem Cells
- Tags: Anemia Jornal, Hematology, Internist
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January 22nd, 2009
Tuberculosis (TB) still remains a big cause of mortality in developing countries. Thus, in these developing countries diabetes prevalence is increasing very fast. As we know, diabetes really increases the risk of Tuberculosis.
In this article, we can find that the researcher constructed an epidemiological model using data on diabetes prevalence, tuberculosis incidence, the structure of population, and relative risk of tuberculosis associated with diabetes. Then, they evaluates the contribution made by diabetes to both tuberculosis incidence, and to the difference between tuberculosis incidence as in urban or rural coverage area.
The conclusion, with the usage of data from India, they found that diabetes truly makes a significant contribution to the incident of tuberculosis in India, and the corelation is particularly strong for the infectious form of tuberculosis. Especially in urban areas, the diabetes epidemic may lead to a resurgence of tuberculosis in endemic regions. A serious implications for tuberculosis control will potentially carried out, and must become a priority to use this knowledge to initiate focused and coordinated action, including new research in parts of the world where diabetes is epidemic and TB endemic to properly inform public health and clinical practice.
As information, the research was jointly supported financially by Yale University, the Medical Research Council (UK), the World Health Organization, and the International Diabetes Federation. Feel free to download this articles as I found it free at PubMed’s website. Thanks to PubMed for this service.
Filed in DM,Internal Medicine,Pulmonology,Tuberculosis
- Tags: Medical Journal
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January 21st, 2009
Human influenza pandemics over the last 100 years have been caused by H1, H2, and H3 subtypes of influenza A viruses. More recently, avian influenza virus subtypes (that is, H5, H7) have been found to directly infect humans from their avian hosts. The recentĀ emergence, host expansion, and spread of a highly pathogenic avian influenza (HPAI) H5N1 subtype in Asia have heightened concerns globally, both in regards to mortality from HPAI H5N1 infection in humans and the potential of a new pandemic.
Recently, particular subtype H5N1, has focused the importance of non-human types andĀ over the past decade they found an increased incidence in the human population. The symptoms of transmission could be range from asymptomatic to a mild conjunctivitis and to fulminant pneumonia. These could also bring into human death. I found an epidemiology, human disease, prevention of its transmission, and treatment of avian influenza A into human had been discussed in this articles. Clinical Review: Update of Avian Influenza A Infections in Humans continued »
Filed in Animal-Born Disease,Avian Flu,Internal Medicine
- Tags: Avian Influenza Article, H5N1 virus, Influenza Vaccination
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January 20th, 2009
The mechanism by which blood pressure is elevated in essential hypertension is well known. There exists throughout the body an increased resistance offered to the flow of blood through arterioles. In the early stages of hypertension this constriction of arterioles is easily
reversible and during sleep or as a result of sedation the blood pressure returns to normal, indicating relaxation of arterioles. There is little or no reason to believe that organic changes in arterioles (excepting perhaps those in the kidneys) precede hypertension or
contribute to development of it in the early stages of this condition.
It is now well known that hypertension of man indistinguishable from essential hypertension may be produced by unilateral renal lesions and that when a diseased kidney is removed surgically the blood pressure may return to normal. Barker and Walters have demonstrated this in an excellent manner. Unfortunately, such renal lesions are found very unusually in hypertension. Medical Aspects of Arterial Hypertension continued »
Filed in Internal Medicine
- Tags: Hypertension Journal, Medicine
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