Tourette Syndrome
    November 4, 2002
    Tourette Syndrome: A-to-Z Guide from Diagnosis to Treatment to Prevention

    Related concepts: Gilles de la Tourette syndrome, tics, PANDA Introduction to tourette syndrome: The great English poet, author, and conversationalist, Dr. Samuel Johnson, is believed to have had Tour…

    Sickle Cell Anemia
    November 3, 2002
    Sickle Cell Anemia: A-to-Z Guide from Diagnosis to Treatment to Prevention

    Related concepts: Hemoglobin S Introduction to sickle cell anemia: Normal red blood cells are soft, gel-like discs that can squish as needed to slip through the tiny capillaries of the body. In sickle…

    Phenylketonuria
    November 2, 2002
    Phenylketonuria: A-to-Z Guide from Diagnosis to Treatment to Prevention

    Related concepts: PKU, Classic phenylketonuria, Benign hyperphenylalaninemia, Malignant hyperphenylalaninemia, Transient hyperphenylalaninemia. Introduction to PKU: The sweetener aspartame, and many p…

    lazy summer
    October 29, 2002
    Fragile X Syndrome: A-to-Z Guide from Diagnosis to Treatment to Prevention

    Related concepts: Martin-Bell syndrome, Marker X syndrome, Cluttering Introduction to fragile X syndrome: Fragile X syndrome is the most common cause of mental retardation in boys. What is fragile X s…

    Fetal Alcohol Syndrome
    October 29, 2002
    Fetal Alcohol Syndrome: A-to-Z Guide from Diagnosis to Treatment to Prevention

    Related concepts: Alcohol use during pregnancy Introduction to fetal alcohol syndrome: It used to be thought that drinking during pregnancy was fine for the baby. Fetal alcohol syndrome wasn’t disco…

    Down syndrome
    October 28, 2002
    Down syndrome: A-to-Z Guide from Diagnosis to Treatment to Prevention

    Related concepts: Trisomy 21 Introduction to Down syndrome: Down syndrome is the most common chromosomal abnormality syndrome in humans. What is Down syndrome? Humans are built to have two sex chromos…

    Cystic Fibrosis
    October 26, 2002
    Cystic Fibrosis: A-to-Z Guide from Diagnosis to Treatment to Prevention

    Related concepts: CF Introduction to cystic fibrosis: A diagnosis of cystic fibrosis was once assumed to be an early childhood death sentence. As of 2009, the median lifespan was in the mid-30s, accor…

    200325077-001
    October 21, 2002
    Colorblindness: A-to-Z Guide from Diagnosis to Treatment to Prevention

    Related concepts: Achromatopsia, protanopia, deuteranopia, red-green colorblindness Introduction to colorblindness: The dazzling experience of color begins when light strikes a canvas of tightly packe…

    Determining Paternity
    June 21, 2001
    Determining Paternity

    Dr. Greene's Answer: It is now possible to determine the father even before a baby is born. This is done by comparing DNA molecules -- our genetic blueprints. To do this you need a blood sample from b…

    Bllod Types 102
    March 8, 1999
    Blood Types 102: The Role of A, B, O, and AB Groups In Determining Paternity

    Dr. Greene's Answer: Having a baby is a lifelong responsibility and hopefully an even greater reward -- for somebody! As a mother's belly swells, she knows with deep certainty that the child is hers. …

    Information on Trisomy 13
    June 9, 1997
    Information on Trisomy 13

    Dr. Greene's Answer: Melissa, one of my most vivid memories from my pediatric residency was sitting with a mom while she rocked her son who was born with trisomy 13. We were in the Intensive Care Nurs…

    Trisomy 13
    June 9, 1997
    The Complex and Profound Effects of Trisomy 13

    Dr. Greene's Answer: The 13th chromosome contains blueprints that direct a baby's development in the early weeks following conception. When a child has an extra 13th chromosome, as is the case in tris…

    What Are Mongolian Spots
    February 4, 1997
    What are Mongolian Spots?

    Dr. Greene's Answer: Several years ago, I met a little girl who had been taken from her parents because authorities noticed that her body, especially her buttock, was covered with large, deep bruises.…

    XYY Boys
    December 2, 1996
    XYY Boys

    Dr. Greene's Answer: My hat is off to you, Mary. Your instinct is leading you to an often unrecognized root of many problems in very active boys. Mothering four children is a huge task -- all the more…

    Are they really my parents?
    April 4, 1996
    Are they really my parents?

    Dr. Greene's Answer: Genetics can be so confusing! I can easily see how after much research the issue would still appear murky. The modern science of genetics had its start in 1866 when an Austrian mo…

    Blood Types 101: An Introduction to ABO Blood Types and the Rh System
    April 4, 1996
    Blood Types 101: An Introduction to ABO Blood Types and the Rh System

    Dr. Greene's Answer: Genetics can be so confusing! I can see how the issue may appear murky. The modern science of genetics had its start in 1866 when an Austrian monk named Gregor Mendel provided a s…