How can genetic counselors help families understand the risk of Down syndrome?

Jan 7, 2025 ... This study addresses fundamental questions surrounding otitis media effusion in Down syndrome, identifying DYRK1A as a key gene involved in the condition. Nov 30, 2023 ... In the United States, demographic factors also affect the risk for a child to be born with Down syndrome. These factors include geographic ... Jun 20, 2018 ... Down syndrome is a condition in which a person is born with an extra copy of chromosome 21. The condition is associated with intellectual disability. Feb 23, 2024 ... People with Down syndrome are born with an extra chromosome. This can lead to a range of issues that affect them mentally and physically. Jan 25, 2025 ... Here are four factors that may be associated with an increased risk of having a baby with Down syndrome. Apr 20, 2023 ... The cause of Down syndrome is known to be an extra copy of chromosome 21, or trisomy 21. But because this chromosome contains more than 200 ... Most cases of Down syndrome are caused by trisomy 21. Occasionally, the extra chromosome #21 or a portion of it is attached to another chromosome in the egg or ... Down syndrome, caused by meiotic separation of chromosome 21 in humans, is associated with advanced maternal age, but defining and understanding other risk ... Apr 26, 2023 ... They found that having a third copy of the gene Dyrk1a and at least three other genes was responsible for changes in development that result in ... Down syndrome is the most frequently occurring chromosomal disorder and the leading cause of intellectual and developmental delay in the US and in the world.