A Kell positive father frequently is the cause behind the inability of his partner to bear a healthy infant after the first Kell negative pregnancy, which the authors note is precisely the circumstance experienced with women who had multiple pregnancies by Henry. The majority of individuals within the Kell blood group are Kell negative, so it is the rare Kell positive father that creates reproductive problems.
Further supporting the Kell theory, descriptions of Henry in mid-to-late life indicate he suffered many of the physical and cognitive symptoms associated with McLeod syndrome a medical condition that can occur in members of the Kell positive blood group.
By middle age, the King suffered from chronic leg ulcers, fueling longstanding historical speculation that he suffered from type II diabetes. The ulcers also could have been caused by osteomyelitis, a chronic bone infection that would have made walking extremely painful. In the last years of his life, Henry's mobility had deteriorated to the point that he was carried about in a chair with poles. That immobility is consistent with a known McLeod syndrome case in which a patient began to notice weakness in his right leg when he was 37, and atrophy in both his legs by age 47, the report notes.
Whitley and Kramer argue that the Tudor king could have been suffering from medical conditions such as these in combination with McLeod syndrome, aggravated by his obesity. Records do not indicate whether Henry displayed other physical signs of McLeod syndrome, such as sustained muscle contractions (tics, cramps or spasms) or an abnormal increase in muscle
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Southern Methodist University