Wow! Dave thank you for sharing this important health information on the risks 
of Malignant Hyperthermia (MH), in those with Irish ancestry.  

With thanks 

Janet Fairless (nee Wilson)
Brisbane 
Australia 

> On 26 Jan 2019, at 7:21 am, Dave Clements via CoTyroneList 
> <[email protected]> wrote:
> 
>  In January of 2018, you added an article on Joseph Dougherty, the Canadian 
> buried in the Grange. His sister was my grandmother, Martha Doherty Clements 
> who lived at Lower Tully across the border in Londonderry before emigrating 
> to Canada. 
> 
> Based on medical reactions and testing of descendants in both families, 
> Joseph and Martha were carriers of a genetic condition, known as malignant 
> hyperthermia or MH.  The University of Cork has centre for study of this 
> condition which is known in Irish families. It is an autosomal dominant 
> condition. DNA testing is not  definitive and muscle biopsies are often used.
> 
> Links for description
> https://en.wikipedia.org/wiki/Malignant_hyperthermia 
> <https://en.wikipedia.org/wiki/Malignant_hyperthermia>
> https://www.mayoclinic.org/diseases-conditions/malignant-hyperthermia/symptoms-causes/syc-20353750
>  
> <https://www.mayoclinic.org/diseases-conditions/malignant-hyperthermia/symptoms-causes/syc-20353750>
> 
> Until surgery under anesthetic became common, this condition was unknown.
> 
> The condition would have come from one of Joseph's parents either William 
> Doherty (1842-1926) or  Jane Thompson(1849-1945).  William's parents were 
> William Doherty and Peggy Dunn ( no data, haven't searched).  Jane's parents 
> were Nathaniel Thompson and Martha Martin( no data, haven't searched).
> 
> I'm interested in knowing whether there are other descendant families who may 
> have condition whether they know it or not.
> 
> 
> Dave Clements
> Bowmanville, ON
> 
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