Category: L

A form of genetic mapping, linkage analysis identifies the existence or nonexistence of an anomalous gene by detecting the proximity of another gene situated nearby on the same chromosome.  

A condition characterized by the underdevelopment of one or multiple limbs at the time of birth. Limb defects are infrequent occurrences and can stem from genetic inheritance or be associated with a broader syndrome. Phocomelia is a medical term describing a condition where limb stumps or the trunk of the body bear attached hands, feet,…

A brief pause in the usual downward motion of the upper eyelids, observed when the eye gazes downward. Lid lag is a distinctive trait seen in cases of thyrotoxicosis (an excessive thyroid gland activity) and is typically associated with exophthalmos (the protrusion of the eyeball).  

Tiny, wingless insects that subsist on human blood. Humans can be infested by three distinct species: Pediculus humanus capitis (commonly known as head lice), Pediculus humanus corporis (referred to as body lice), and Phthirus pubis (also called crab or pubic lice). All of these species possess flattened bodies and can measure up to 3 mm…

A variation of muscular dystrophy, alternatively known as limb-girdle muscular dystrophy, which impacts the regions where the limbs connect with the body. Leyden-Mobius muscular dystrophy is not specific to a particular gender and generally manifests during childhood. This condition leads to muscular weakness and degeneration either in the pelvic girdle (pelvifemoral muscular dystrophy) or the…

A type of dementia characterized by the emergence of spherical formations known as Lewy bodies within the brain. This condition can entail periods of varying confusion and occurrences of visual hallucinations. Additionally, instances of falls are frequently observed.  

This set of antiallergy medications is employed to preclude mild to moderate asthma symptoms. Leukotriene receptor antagonists, encompassing montelukast and zafirlukast, operate by obstructing the impacts of leukotrienes—natural compounds discharged in the lungs amid allergic reactions. Leukotriene receptor antagonists do not function as bronchodilator medications and cannot provide relief during an ongoing asthma attack. Instead,…

An uncommon set of inherited childhood disorders wherein the protective myelin sheaths surrounding numerous nerves, especially in the brain and spinal cord, deteriorate. These leukodystrophies lead to profoundly debilitating conditions including speech impairment, blindness, deafness, paralysis, and invariably result in fatality.  

This is a condition where the left ventricle struggles to effectively expel its contents, even when faced with heightened pressure from the blood it contains.  

Learning challenges can arise from various mental and physical issues. These can stem from conditions like hearing impairment, speech anomalies, and visual disorders, as well as genetic and chromosomal complications. These difficulties can be broad or targeted in nature. With broad learning challenges, a child’s entire mental and physical capabilities might be impacted. Depending on…