Chapter 10: Wombmates
It is commonly believed mirror image twins have finger, palm and heel prints that are mirror images of one another. But that belief is not true. The prints of any pair of identical twins are more alike than are the prints of two unrelated people, with a high correlation of loops, valleys, whorls and ridges. As with all identical twins, however, the details of hand and foot prints in mirror image twins are not identical—nor are they mirror images.
Contrary to popular belief, a trained German Shepherd police dog can unerringly distinguish the difference in scent between identical twins. There is probably no epigenetic basis for this. It is thought to be due to their exposure to different infections throughout life.
Chapter 13: The Father of Bone Marrow Transplantation
The upper age limit at most centers is 50 to 55 years for an allogeneic transplant (related or unrelated) and 60 to 65 years for an autologous transplant. The decisions to place age limits on hematopoietic stem cell transplantation have been driven by higher complications and death in older age groups. This is attributed to their reduced ability to withstand high doses of chemotherapy (and sometimes irradiation) needed before the transplant, higher risk of short- and long-term complications of therapy and having other major health problems such as serious heart, lung, liver or kidney disease. The older transplant recipients also suffer acute and chronic graft versus host disease more frequently than their younger counterparts.
Chapter 15: The Oldest Man in the World
Physicians are concerned about a national healthcare policy in which treatment is restricted just based on age. Relying on age alone, without additional factors such as frailty, quality of life and concurrent diseases, is something we must avoid. Besides, the organs of the same person age at different rates.