Down Syndrome

Down syndrome is a chromosomal abnormality characterized by the presence of an extra copy of genetic material on the 21st chromosome, either in whole (Trisomy 21) or in part (such as due to translocations). The effects of the extra copy vary greatly among people, depending on the extent of the extra copy, genetic history and pure chance. In 2007, the American College of Obstetricians and Gynecologists (ACOG) endorsed guidelines that offer risk assessment to all pregnancies for fetal chromosomal abnormalities, including Down syndrome. It is estimated that approximately 70%, or 2.8 million, women undergo Down syndrome screening in the United States each year.
What is Down Syndrome?

Down syndrome or Down's syndrome, is a congenital condition that usually causes some degree of learning disability and is typically characterized by certain physical features.

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Latest Down Syndrome News and Research

Gene expression maps explain why diseases often occur together

Gene expression maps explain why diseases often occur together

Faster progression to severe diabetes observed in people with learning disabilities

Faster progression to severe diabetes observed in people with learning disabilities

Researchers reveal how diseases interact at the genetic level

Researchers reveal how diseases interact at the genetic level

Women with Down syndrome show more advanced Alzheimer's signs at diagnosis

Women with Down syndrome show more advanced Alzheimer's signs at diagnosis

Alzheimer’s risk factors look different for men and women

Alzheimer’s risk factors look different for men and women

Hypoglossal nerve stimulator shows promise for treating sleep apnea in children with Down syndrome

Hypoglossal nerve stimulator shows promise for treating sleep apnea in children with Down syndrome

Johns Hopkins uncovers protein's unexpected role in brain signaling

Johns Hopkins uncovers protein's unexpected role in brain signaling

Proteome imbalance from aneuploidy linked to mitochondrial dysfunction

Proteome imbalance from aneuploidy linked to mitochondrial dysfunction

Study finds high levels of iron in the brains of people diagnosed with Down syndrome and Alzheimer's

Study finds high levels of iron in the brains of people diagnosed with Down syndrome and Alzheimer's

New QR4 model identifies hidden risk factors in cardiovascular disease

New QR4 model identifies hidden risk factors in cardiovascular disease

Study finds increased risk of age-related cardiovascular diseases in individuals with Down syndrome

Study finds increased risk of age-related cardiovascular diseases in individuals with Down syndrome

Brain stimulation at 40Hz boosts memory and neurogenesis in Down syndrome mice

Brain stimulation at 40Hz boosts memory and neurogenesis in Down syndrome mice

Children with chronic conditions face higher RSV hospitalization risk

Children with chronic conditions face higher RSV hospitalization risk

Researchers simulate protein structures behind learning and memory

Researchers simulate protein structures behind learning and memory

Immigration crackdowns disrupt the caregiving industry. Families pay the price.

Immigration crackdowns disrupt the caregiving industry. Families pay the price.

Blood-brain barrier dysfunction and inflammation linked to Down syndrome Regression Disorder

Blood-brain barrier dysfunction and inflammation linked to Down syndrome Regression Disorder

Non-invasive 40Hz gamma stimulation could help fight Alzheimer’s

Non-invasive 40Hz gamma stimulation could help fight Alzheimer’s

Gene editing shows promise for treating trisomy at cellular level

Gene editing shows promise for treating trisomy at cellular level

Boosting autophagy could improve egg quality and reproductive health

Boosting autophagy could improve egg quality and reproductive health

Blood test can predict preterm preeclampsia with 80% accuracy

Blood test can predict preterm preeclampsia with 80% accuracy

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