Page 94 - April 2015 Life In Naples Magazine
P. 94

BASCOM

                                                    PALMER

                                                   EYE INSTITUTE

                                                    dcaisucsoevserms accluuelas radbeoguetnewrhaatiton

by Jaclyn L. Kovach, MD                            hereditary component to AMD risk. Margaret
                                                   Pericak-Vance, PhD, director of the HIHG
W hat causes age-related macular                   who is the principal investigator for our current
                degeneration (AMD)? Patients       collaboration was one of the researchers who
                pose this seemingly simple         identified the first and most powerful genetic risk
                question to me every day. For      factor for AMD, complement factor H (CFH).
the past seven years, my colleague Dr. Stephen     An abnormal CFH gene can lead to unregulated
G. Schwartz, MD, MBA and I at the Bascom           inflammation in the retina and promote the
Palmer Eye Institute (BPEI) in Naples have         development of AMD.
collaborated with geneticists at the John P.
Hussman Institute for Human Genomics                  Since 2010, Dr. Schwartz and I at BPEI and
(HIHG) at University of Miami Miller School        the geneticists at HIHG have collaborated with
of Medicine to try to answer that very question.   other well-known national and international
                                                   AMD researchers with the goal of identifying
   As it turns out, the etiology of AMD is         other genetic factors associated with AMD through an international group
complicated. There are many factors that           called the AMDGene Consortium.Created by the National Institute of Health’s
increase an individual’s risk of developing        National Eye Institute, the AMDGene Consortium has conducted a type of
this potentially blinding condition. Age is        large research study call a genome wide-association study (GWAS) to identify
the most important risk factor, as AMD             the genes associated with AMD. In 2013 the Consortium published a landmark
affects only patients over 50 years of age. A      article identifying seven new genetic risk factors for AMD which to date brings
history of tobacco use, hypertension, and          the total of known genetic AMD risk factors to 19 genetic loci. The more we
hypercholesterolemia (lifestyle factors) are also  learn about the genetic abnormalities that play a role in the development of
believed to play a role, but genetics are thought  AMD the closer we get to the prevention and better treatments for AMD.
to account for up to 80 percent of one’s AMD
risk. Age-related macular degeneration is a           To date, this fruitful BPEI and HIHG collaboration has authored over 100
strongly inherited disease and is commonly         peer-reviewed articles and national scientific meeting presentations that have
passed down through families. Genetic              contributed to the current state of knowledge of AMD. This research would
risk factors interact with lifestyle factors to    not be possible without the help of over 1,000 of our Naples patients who have
determine one’s risk of developing AMD and         so generously agreed to participate in this ongoing genetic research project for
how the condition progresses.                      AMD. For more information regarding our research at the Bascom Palmer Eye
                                                   Institute in Naples, please call 239.659.3937 and ask for Rosanny Larach, our
   Prior to 2005, the genetic risk factors         research coordinator.
for AMD were unknown. At that time,
we simply knew that there was a strong

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