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Smith–Magenis syndrome (SMS), also known as 17p-microdeletion syndrome, is a microdeletion syndrome characterized by an abnormality in the short (p) arm of chromosome 17. [1] It has features including intellectual disability , facial abnormalities, difficulty sleeping, and numerous behavioral problems such as self-harm.
African American life expectancy at birth is persistently five to seven years lower than European Americans. [17] By 2018 that difference had shrunk to 3.6 years. [18] As of 2020, Hispanics had a life expectancy at birth of 78.8 years, followed by non-Hispanic Whites at 77.6 years and non-Hispanic blacks at 71.8 Years. [19]
Melkersson–Rosenthal syndrome is a rare neurological disorder characterized by recurring facial paralysis, swelling of the face and lips (usually the upper lip: cheilitis granulomatosis) and the development of folds and furrows in the tongue (fissured tongue). [2]: 799 Onset is in childhood or early adolescence.
While Black life expectancy rose by 1.5 years in 2022, that lagged behind Hispanic Americans, American Indians, and Alaska Natives, who saw life expectancy rise more than two years in 2022. (Adobe ...
Kleefstra syndrome affects males and females equally and approximately 75% of all documented cases are caused by Eu-HMTase1 disruptions while only 25% are caused by 9q34.3 deletions. [3] There are no statistics on the effect the disease has on life expectancy due to the lack of information available. [3]
The life expectancy of Black Americans continue to lag that of white Americans, with disparities seen across states. Experts say structural racism must be addressed to close the gap.
Cornelia de Lange syndrome has a widely varied phenotype, meaning people with the syndrome have varied features and challenges. The typical features of CdLS include thick or long eyebrows , a small nose , small stature, developmental delay, long or smooth philtrum , thin upper lip and downturned mouth .
Maxillary hypoplasia is the most common secondary deformity that results from cleft lip and cleft palate. Because of the subjective nature of the diagnosis, the incidence of maxillary hypoplasia in people with cleft lip and palate varies between 15-50%. It is estimated that 25-50% of these patients require surgical intervention. [7]