Quick Answer: Is Klinefelter Syndrome More Common In One Ethnicity?

Who has Klinefelter syndrome?

Boys and men with Klinefelter syndrome are still genetically male, and often will not realise they have this extra chromosome, but occasionally it can cause problems that may require treatment.

Klinefelter syndrome affects around 1 in every 660 males..

What age is Klinefelter syndrome diagnosed?

Diagnosis frequently occurs in adulthood; however about 75% of sex chromosome aneuploidies are never diagnosed. For suspected 47,XXY males, common indicators for karyotype analysis on peripheral blood are hypogonadism and infertility.

Are all Klinefelter’s infertile?

Klinefelter syndrome is one of the leading causes of male infertility. Approximately 3% of all infertile men have Klinefelter syndrome[1] and 14% of non-obstructive azoospermic men have Klinefelter syndrome[3]. Klinefelter syndrome is a chromosomal condition that affects male physical and cognitive development.

Does Klinefelter syndrome cause mental retardation?

Klinefelter syndrome (KS) has not typically been associated with mental retardation (MR), however, in recent years a growing body of evidence suggested that KS boys often experience language deficits and academic difficulties.

What is the survival rate of Klinefelter syndrome?

We found that Klinefelter syndrome was associated with a significant increase in mortality risk of 40% (hazard ratio, 1.40; 95% confidence interval, 1.13–1.74), corresponding to a significantly reduced median survival of 2.1 yr.

Do serial killers have an extra chromosome?

The court found that while an extra Y chromosome seems like a logical explanation for mutant-aggressive behaviour, there is not much evidence that links the X or Y chromosome to the deviant behaviour of serial killers. Gosavi Gajbe conducted a study looking at the role of chromosomes in criminality.

What is super male syndrome?

XYY syndrome is a rare chromosomal disorder that affects males. It is caused by the presence of an extra Y chromosome. Males normally have one X and one Y chromosome. However, individuals with this syndrome have one X and two Y chromosomes. Affected individuals are usually very tall.

How do you get tested for Klinefelter syndrome?

Blood or urine samples can reveal abnormal hormone levels that are a sign of Klinefelter syndrome. Chromosome analysis. Also called karyotype analysis, this test is used to confirm a diagnosis of Klinefelter syndrome. A blood sample is sent to the lab to check the shape and number of chromosomes.

Who is most likely to get Klinefelter’s syndrome?

Klinefelter syndrome results when a boy is born with at least 1 extra X chromosome. This is written as XXY. Klinefelter syndrome occurs in about 1 out of 500 to 1,000 baby boys. Women who get pregnant after age 35 are slightly more likely to have a boy with this syndrome than younger women.

Does Klinefelter syndrome affect a certain race?

Klinefelter syndrome does not have any racial predilection.

Which parent does Klinefelter’s syndrome originate from?

However, almost 50% of cases of Klinefelter syndrome are thought to originate from an error in the X chromosome of the sperm from the father and are, therefore, not linked to the age of the mother. Older age of the father may also be linked to an increased risk of the syndrome.

Can a girl have Klinefelter’s syndrome?

Klinefelter syndrome (47,XXY) results from an additional X chromosome on an XY background; therefore, this condition affects only males.

What is the life expectancy of someone with Klinefelter syndrome?

According to research, Klinefelter syndrome can shorten your life expectancy up to two years. However, you can still live a long, full life with this condition.

CAN XXY have babies?

However, problems with their testicles prevent them from making enough normal sperm to father children. The vast majority of men with Klinefelter syndrome are infertile and can’t father a child the usual way. Options for becoming natural parents are limited, but fertility researchers are working on new treatments.

What does a person with Klinefelter syndrome look like?

Longer legs, shorter torso and broader hips compared with other boys. Absent, delayed or incomplete puberty. After puberty, less muscle and less facial and body hair compared with other teens. Small, firm testicles.