‘Cold Lasers’ May Stimulate Platelets in Thrombocytopenia

MedicalResearch.com Interview with:

Mei X. Wu, Ph.D. Associate Professor Wellman Center for Photomedicine Massachusetts General Hospital Dermatology Department Harvard Medical School

Dr. Mei Wu

Mei X. Wu, Ph.D.
Associate Professor
Wellman Center for Photomedicine
Massachusetts General Hospital
Dermatology Department
Harvard Medical School

MedicalResearch.com: What is the background for this study?

Response: An abnormally low count of platelets, a disorder called thrombocytopenia, is life-threatening owing to a high risk of uncontrollable bleeding. The disorder can be caused by a variety of conditions like trauma, an autoimmune disorder that attacks platelets, side-effects of some drugs especially chemotherapeutic drugs, and in premature newborns and patients with HIV-infection or a genetic defect leading to insufficient platelet generation. Platelet transfusion is the most effective modality to treat the disorder, but it is associated with complications including allergic reaction, fever, infection, and immunosuppression and limited only to the most severe patients. Several FDA-approved drugs are currently used in the clinics or clinical trials to increase platelet levels, which however must be carefully dosed to avoid excessive platelet production that is also dangerous and are not suitable to many forms of thrombocytopenia.

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Ocular Injuries from Laser Pointers

Glenn Yiu, MD, PhD Duke Ophthalmology Duke University Medical CenterMedicalResearch.com Interview with:
Glenn Yiu, MD, PhD
Duke Ophthalmology
Duke University Medical Center


MedicalResearch.com:  What are the main findings of the study?

Dr. Yiu: This paper reported a child who suffered injury to both eyes from a powerful blue laser pointer purchased via the internet from overseas. Our report reviews the scientific basis for laser injuries in eyes and the factors that may affect outcomes, such as power, wavelength, duration, and distance of exposure. Newer green and blue lasers, especially high-powered ones, may be more prone to inducing eye injuries. We summarized the clinical features of ocular laser injuries, methods of prevention, and discussed how consumer availability of high powered lasers may require careful federal regulations.

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