Down syndrome is a former featured article. Please see the links under Article milestones below for its original nomination page (for older articles, check the nomination archive) and why it was removed.
This article is within the scope of WikiProject Psychology, a collaborative effort to improve the coverage of Psychology on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.PsychologyWikipedia:WikiProject PsychologyTemplate:WikiProject Psychologypsychology
Down syndrome is within the scope of WikiProject Disability. For more information, visit the project page, where you can join the project and/or contribute to the discussion.DisabilityWikipedia:WikiProject DisabilityTemplate:WikiProject DisabilityDisability
This article is within the scope of WikiProject Autism, a collaborative effort to improve the coverage of all aspects of autism and autistic culture on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.AutismWikipedia:WikiProject AutismTemplate:WikiProject AutismAutism
This article is within the scope of WikiProject Epilepsy, a collaborative effort to improve the coverage of epilepsy and epileptic seizures on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.EpilepsyWikipedia:WikiProject EpilepsyTemplate:WikiProject EpilepsyEpilepsy
This article is part of WikiProject Deaf, the WikiProject which seeks to improve articles relating to all aspects of deaf-related and Deaf culture. For the Project guidelines, see the project page or talk page.DeafWikipedia:WikiProject DeafTemplate:WikiProject Deafdeaf
All editions of the Diagnostic and Statistical Manual of Mental Disorders are copyrighted. Do not post a copy of the official DSM diagnostic criteria in any Wikipedia article. Simply reproducing the entire list in the DSM is notfair use and is a violation of the Wikipedia:Non-free content criteria legal policy. Instead, describe the criteria in your own words. See Wikipedia:Copyright violations#Parts of article violate copyright for instructions if the criteria have been copied into the article. Editors may quote a small part of the DSM criteria for a given condition, especially if that quotation is used to discuss the DSM's choice of terminology in that quotation.
Other talk page banners
This article has been viewed enough times in a single week to appear in the Top 25 Report. The week in which this happened:
This page has been cited as a source by a notable professional or academic publication:
Health: An Interdisciplinary Journal for the Social Study of Health, Illness and Medicine [1]
This article is substantially duplicated by a piece in an external publication. Since the external publication copied Wikipedia rather than the reverse, please do not flag this article as a copyright violation of the following sources:
Our article contained the text "Augmentative and alternative communication methods, such as pointing, body language, objects, or graphics are often used to aid communication." back in 2007 [2]
I'm literally replying here just to add my sig which will allow archiving to happen, now it's been fixed. For the record, the term "life long" no longer appears in the article anyway. Chaheel Riens (talk) 12:40, 6 June 2025 (UTC)[reply]
The reference cited was a case report that claimed 3 males with Down Syndrome fathered children. It made no claim about the planet, but rather that these cases are unusual. The sentence was confusing, I don't think it adds to the article and I deleted it. The same reference is used the previous, clearer sentence. Johnjbarton (talk) 23:34, 31 March 2025 (UTC)[reply]
This template must be followed by a complete and specific description of the request, that is, specify what text should be removed and a verbatim copy of the text that should replace it. "Please change X" is not acceptable and will be rejected; the request must be of the form "please change X to Y".
The edit may be made by any autoconfirmed user. Remember to change the |answered=no parameter to "yes" when the request has been accepted, rejected or on hold awaiting user input. This is so that inactive or completed requests don't needlessly fill up the edit requests category. You may also wish to use the {{ESp}} template in the response. To request that a page be protected or unprotected, make a protection request.
Wanted to include a diagram of nondisjunction during the meiosis I phase of the maternal cell for users to easily imagine it on the side of this text: "Down syndrome (also known by the karyotype 47,XX,+21 for females and 47,XY,+21 for males)[99] is mostly caused by a failure of the 21st chromosome to separate during egg or sperm development, known as nondisjunction.[92] As a result, a sperm or egg cell is produced with an extra copy of chromosome 21; this cell thus has 24 chromosomes. When combined with a normal cell from the other parent, the baby has 47 chromosomes, with three copies of chromosome 21.[3][92] About 88% of cases of trisomy 21 result from nonseparation of the chromosomes in the mother, 8% from nonseparation in the father, and 3% after the egg and sperm have merged.[100]". Just a simple image, nothing complex. My image that I have created can be found here: https://commons.wikimedia.org/wiki/File:Biology_Missing_Wikipedia_Project_(1).jpgWillnpp11 (talk) 05:05, 24 May 2025 (UTC)[reply]
Thanks. I have two suggestions.
First the file should be renamed. There are thousands of images in wikipedia and perhaps a million missing ones ;-). Something like Nondisjunction_in_trisomy-21 for example.
Second, I think the cell divisions are obvious but the last two lines of image may be confusing to some readers. Mother and father lines have 4 cells but only one of each shows up in the last line. Perhaps the joining action of the two cells lines could be labeled "Fertilization"? Johnjbarton (talk) 15:42, 24 May 2025 (UTC)[reply]
"The mechanism is not inherited. tThere is no scientific research which shows that environmental factors or the parents' activities contribute to Down syndrome." Spelling mistake in the Cause section, the letter t is repeated, first in lowercase case, then in uppercase. Namek Trotu (talk) 05:46, 25 May 2025 (UTC)[reply]
This edit request has been answered. Set the |answered= parameter to no to reactivate your request.
Please change "Two efforts being studied are the use stem cells..." to "Two efforts being studied are the use of stem cells..." (added "of" before stem cells) in the "Reasearch" section (grammatical error). Aspidthesnake (talk) 20:41, 27 May 2025 (UTC)[reply]
In the rewritten section there are two new errors in the sentence "Gene therapy delivered via stem cells has proposed as a tool for studying the syndrome and and an approach to therapy.". The correct version would be "Gene therapy delivered via stem cells has been proposed as a tool for studying the syndrome and an approach to therapy." ( changed "has" to "has been" and removed duplicate "and") Aspidthesnake (talk) 08:53, 28 May 2025 (UTC)[reply]
level-4 vital article is rated GA-class on Wikipedia's content assessment scale.
.jpg){kind=link}
Done thanks Johnjbarton (talk) 15:00, 28 May 2025 (UTC)