Talk:Achondroplasia

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Discussion and verification of permission is archived at Talk:Jumper's Knee. Melchoir 23:42, 17 April 2006 (UTC)

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Achondroplasia is just a technical name for Dwarfism

No, it's not; it just one of many possible causes of dwarfism.--Prosfilaes 14:39, 6 April 2006 (UTC)

Removed vandalism- March 8, 2012.

Wiki Education Foundation-supported course assignment

This article is or was the subject of a Wiki Education Foundation-supported course assignment. Further details are available on the course page. Student editor(s): Klshetler. Peer reviewers: Rlstatton.

Above undated message substituted from Template:Dashboard.wikiedu.org assignment by PrimeBOT (talk) 13:20, 16 January 2022 (UTC)

"Disease" and "disorder" versus "Achondroplasia"

PEGGY JEAN CASTILLO —Preceding unsigned comment added by 216.146.100.31 (talk) 20:02, 5 December 2007 (UTC)

There is a lot of debate going on as to what achondroplasia is(ie a medical condition, disorder, disease, disability, or none of the above). Because of that, I think it's a better idea just to call achondroplasia achondroplasia to prevent the article being POV. --Umalee 22:21, 31 March 2007 (UTC)

World's Smallest Girl

As reported by reputable news agency Fox News, the world's smallest girl as confirmed by the Guiness Book of World records, happens to have Achondroplasia.

[1] —Preceding unsigned comment added by ApsbaMd2 (talk • contribs) 20:50, 9 April 2008 (UTC)

ApsbaMd2 (talk) 20:52, 9 April 2008 (UTC)

Its true thats what the Fox News site says, but its incorrect. I am a doctor specialising in Achondroplasia and this person must have something else, probably primordial dwarfism. Zankl (talk) 11:38, 17 November 2017 (UTC)

Pictures

Somebody should put some pictures up. defintly

In other species?

I'd like to see some more on this article - namely, it's achondroplasia in other species: it's what makes dachshunds, corgis, and basset hounds (along with other breeds) long bodied with short legs. I've also seen examples of it in horses and other domesticated animals. 74.211.92.37 (talk) 23:56, 9 June 2010 (UTC)

lifted from: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1189626/pdf/cjvetres00008-0053.pdf

"Based on their disproportionate dwarfism, some dog breeds traditionally have been classified as "achondroplastic." This is the case for the dachshund, basset hound, and bulldog breeds, to mention a few (4,5). Histological studies in some achondroplastic dog breeds have shown altered cell patterns in cartilage that are very similar to those observed in humans exhibiting achondroplasia (6)."

references:

• 4. Jones T, Hunt R. The musculoskeletal system: In: Jones T, Hunt R, eds. Veterinary Pathology, 5th ed. Philadelphia: Lea & Febiger; 1979:1175-1176.
• 5. Willis MB. Inheritance of specific skeletal and structural defects. In: Willis MB, eds. Genetics of the Dog. 1st ed. Great Britain: Howell Book House; 1989:119-120.
• 6. Braund K, Ghosh P. Morphological studies of the canine intervertebral disc. The assignment of the beagle to the achondroplastic classification. Res Vet Sci 1975;19:167-172

I'm busy on dog articles, I may get around to researching other species. Gmip (talk) 11:11, 16 October 2011 (UTC)

Added some dog info regarding the cool retrogene.TomHaffie (talk) 01:46, 7 February 2012 (UTC)

Ive added a reference to the much-fabled Ancon sheep, with reference and link. Please note that before this change the Ancon article was an orphan. So if you remove my work here you will need to recheck the Ancon article's link status and add the orphan tag again if appropriate. Thanks! Jaydubya93 (talk) 20:14, 7 March 2014 (UTC)

Incidence of orthopedic disability?

Aside from short stature, I wonder if and to what extent achondroplasia is accompanied by orthopedic problems, such as commonly occur in diastrophic dysplasia? These do cause disability, and if they are common in achondroplasia, that might affect the debate above about terminology. Also, if disabilities are common, the incidence (or absence of disability, if not?) would be useful to mention in the article. Wwheaton (talk) 00:40, 18 August 2010 (UTC)

In animals, associated health issues are both severe and common (arthritis, for ex). Unfortunately I am completely unversed in related study in humans, so I would be disinclined to make these kind of changes (animal issues while perhaps pertinent would be unbalanced without accompanying human data given the structure of the article IMO). If someone has human data I can add animal data tho. Jaydubya93 (talk) 20:20, 7 March 2014 (UTC)

Why does "chondrodystrophia" redirect here?

The term is not used or explained in the article. 86.159.197.174 (talk) 00:13, 22 August 2014 (UTC)

Contradiction in Treatment section?

Second paragraph: "human growth hormone does not help people with achondroplasia" then in the third: "Usually, the best results appear within the first and second year of therapy."

Head

Head and torso are off normal proportion. Head is not large according to some sources. GenacGenac (talk) 00:11, 23 September 2021 (UTC)

COI edit requests

Hi, I’m a COI editor for BioMarin Pharmaceutical, the manufacturer of a treatment for achondroplasia. Requesting some updates to this article:

• In the infobox, add genetics as a risk factor, per the article lead and body.
  •  Not done - seems redundant, since the infobox already lists genetic mutations as the cause. Spicy (talk) 05:11, 15 July 2022 (UTC)
• In the second paragraph of the lead, after

Achondroplasia is caused by a mutation in the fibroblast growth factor receptor 3 (FGFR3) gene that results in its protein being overactive.

add:

Achondroplasia results in impaired endochrondral bone growth (bone growth within cartilage).

•  Done, but I used the Orphanet review article for this, it's better to cite a proper secondary source. Spicy (talk) 05:11, 15 July 2022 (UTC)

• Also in second paragraph of lead, for clarity, update

About 80% of cases result from a new mutation, which originates in the father's sperm.

to

About 80% of cases occur in children of parents of average stature and result from a new mutation, which most commonly originates as a spontaneous change during spermatogenesis.

•  Done. Spicy (talk) 05:11, 15 July 2022 (UTC)

• In the last sentence of the second paragraph, update "symptoms" to "clinical features", which is more accurate to the language used in the source.
  •  Done Spicy (talk) 05:11, 15 July 2022 (UTC)

• In the third paragraph of the lead, update

Treatments may include support groups and growth hormone therapy.

to

Treatments may include support groups and growth hormone therapy (approved in Japan).

•  Not done - seems like excessive detail for the lead, which is supposed to be a general summary. Spicy (talk) 05:11, 15 July 2022 (UTC)

• In "Complications", add:

The life expectancy of people with achondroplasia is approximately 10 years less than average. Factors in this reduced life expectancy include higher heart disease-related mortality.

(This is already in the article lead; just incorporating it into the article body with additional context/detail.)

•  Partly done. I added the first sentence. The second sentence requires a secondary source, per WP:MEDRS. Spicy (talk) 05:11, 15 July 2022 (UTC)

• Add to the "Adults" subsection of "Complications":

Some research has found that adults with achondroplasia may also experience psychosocial complications, usually associated with short stature. Children and adults with achondroplasia may also experience psychosocial consequences.

•  Partly done. I did not add the second sentence as it cites a primary source. I also don't think it's an accurate representation of the source, which concludes "Although the children with achondroplasia experienced more short stature-related stressors, there was no evidence of any psychosocial maladaptation." Spicy (talk) 05:11, 15 July 2022 (UTC)

• In second paragraph of "Causes", update

People with achondroplasia can be born to parents that do not have the condition due to spontaneous mutation.

to

People with achondroplasia are often born to parents that do not have the condition due to spontaneous mutation.

Update "can be" to "are often" since spontaneous mutation accounts for 80% of cases.

•  Done Spicy (talk) 05:11, 15 July 2022 (UTC)

• Add to beginning of "Diagnosis":

Postnatal diagnosis of achondroplasia is typically uncomplicated, involving an assessment of physical features (like macrocephaly and rhizomelic shortening of limbs) and radiographic features.

•  Done, but I removed the examples of physical features because they are already described in the existing text. Spicy (talk) 05:11, 15 July 2022 (UTC)

• In "Diagnosis", update

Achondroplasia can be detected before birth by prenatal ultrasound.

to

Achondroplasia can be detected before birth by prenatal ultrasound, although signs are often subtle and not apparent before the 24th week of pregnancy.

•  Done Spicy (talk) 05:11, 15 July 2022 (UTC)

• At the end of "Radiologic findings", add a citation to the final sentence:

Another distinct characteristic of the syndrome is thoracolumbar gibbus in infancy.

•  Question: Do you have a source for the 'distinct' phrasing? 'Common' and 'distinct' are not the same thing. Spicy (talk) 05:11, 15 July 2022 (UTC)

First up – thanks for handling these requests! Second – I do not; this is the closest source I could find to align with the current article text. Perhaps it would be better to update "distinct" to "common"? Mary Gaulke (talk) 03:24, 20 July 2022 (UTC)

 Done with the wording change as suggested. Spicy (talk) 17:45, 20 July 2022 (UTC)

• Add to end of first paragraph of "Treatment":

As of December 2020, the treatment of achondroplasia with human growth hormone was approved only in Japan.

•  Done Spicy (talk) 05:11, 15 July 2022 (UTC)

• Add to end of third paragraph of "Treatment":

Little medical consensus exists around limb lengthening as a treatment for achondroplasia; it is recommend in some countries and not in others. The age of surgery can also vary from early childhood to adulthood.

•  Partly done I rephrased this a bit for clarity and removed "it is recommended in some countries and not in others" as it's somewhat redundant to the preceding sentence and, IMO, too closely paraphrased from the source text. Spicy (talk) 05:11, 15 July 2022 (UTC)

• Add to end of "Treatment":

Research has also shown that introducing parents of children with achondroplasia to support and advocacy groups at the time of diagnosis can improve outcomes. Several patient advocacy groups exist to support people with achondroplasia and their families.

•  Done. The second source isn't great but it's not biomedical information or an exceptional claim. Spicy (talk) 05:11, 15 July 2022 (UTC)

• Add to end of "Epidemiology":

A 2020 review and meta-analysis estimated a worldwide prevalence of 4.6 per 100,000.

•  Done Spicy (talk)

• If I’m not mistaken, this page also fits into Category:Dwarfism.

•  Done Spicy (talk)

Thanks for your time and feedback! Mary Gaulke (talk) 00:37, 21 June 2022 (UTC)

Reviewing. TrangaBellam (talk) 07:22, 27 June 2022 (UTC)

@TrangaBellam: Hi! Just checking if you're still interested in reviewing this. Thanks! Mary Gaulke (talk) 21:02, 12 July 2022 (UTC)

I've responded to this after seeing MaryGaulke's post at WikiProject Medicine. In the interest of transparency, and in case anyone is curious why someone would be paying for these edits (I was): BioMarin manufactures vosoritide, a drug intended to increase stature in children with achondroplasia. Some of these edits emphasize the negative effects of short stature and the current lack of effective treatments, which I suppose is where the possible bias comes in. However, the statements that I've added are supported by WP:MEDRS compliant sources. The authors of some of these sources have a declared conflict of interest with BioMarin, but comparing to other sources such as [2] or [3], I don't get the impression that these claims are controversial. Other input is welcome. Spicy (talk) 05:11, 15 July 2022 (UTC)

References

Achondroplasia in children merger proposal

The following discussion is closed. Please do not modify it. Subsequent comments should be made in a new section. A summary of the conclusions reached follows.

To not merge, given the unique content related to children warranting separate coverage. Klbrain (talk) 15:12, 19 November 2022 (UTC)

---

Hi! As noted above, I'm a COI editor for BioMarin Pharmaceutical, the manufacturer of a treatment for achondroplasia. I’m suggesting that achondroplasia in children be merged into this article. It looks like this article is better maintained, better sourced, and more current, and I think the content is too similar to warrant a split – i.e., most folks would expect to find information about achondroplasia in children as part of this achondroplasia article. It would also be easier to ensure one article is well maintained and avoid inconsistencies between the two articles. Plus, both articles combined total approximately 34KB, not enough to justify division according to WP:SIZERULE.

Thanks for your feedback. Mary Gaulke (talk) 00:05, 7 August 2022 (UTC)

• oppose both articles should remain separate due to specific content...IMO--Ozzie10aaaa (talk) 11:52, 22 August 2022 (UTC)
• Oppose per Ozzie. I think the content needs to be in two separate articles, owing to the unique nature of the content relating to each age group, which would seem to me to be independently notable topics. Tom (LT) (talk) 04:13, 25 September 2022 (UTC)

The discussion above is closed. Please do not modify it. Subsequent comments should be made on the appropriate discussion page. No further edits should be made to this discussion.