parabiotic

Ultra-Processed People: The Science Behind Food That Isn't Food

by Chris van Tulleken  · 26 Jun 2023  · 448pp  · 123,273 words

each animal and stitched the rats together. As the wound healed, blood vessels naturally grew from one rat to another so that they became a ‘parabiotic pair’. Grim, yes, but it did allow scientists to tease out the effect of things in the blood. In an early experiment, one rat of

…

a parabiotic pair was fed sugar, while the other wasn’t. Both developed high blood sugar – although only one developed tooth decay, showing that it was sugar

…

the life of the younger.† Nearly a century later, in 1959, an English physiologist called G. R. Hervey began a series of experiments using the parabiotic pair technique to understand weight control. The study is tough reading. Ninety-three pairs of rats were sewn together, only thirty-two of which survived

…

with a damaged hypothalamus lost control of their eating and often developed obesity. So, he started damaging the hypothalamus of just one rat in each parabiotic pair and, if anything, the results got even more horrifying. The rats with the damaged hypothalamus ate so much so quickly that they sometimes died

…

.com/news/20i6/08/peter-thiel-wants-to-inject-himself-with-young-peoples-blood. 13 Hervey GR. The effects of lesions in the hypothalamus in parabiotic rats. J Physiol. 1959 Mar 3;145(2):336–52. 14 Paz-Filho G, Mastronardi C, Delibasi T, et al. Congenital leptin deficiency: diagnosis and

…

, 19, 28, 29, 258–9, 277 palm stearin, 19, 29 pancreas, 111, 194n pandemic diseases, 260 Panodan, 212 papillae, 194 Pará river, 238, 239, 241 parabiotic pairs, 103 paraffin, 70 Pastoral da Criança, 242 pectin, 87 pellagra, 42 PepsiCo, 54, 65, 101n, 120, 121, 202, 203, 205n, 267, 295–6 peptides

Ageless: The New Science of Getting Older Without Getting Old

by Andrew Steele  · 24 Dec 2020  · 399pp  · 118,576 words

direct effects in the mouth or its indirect effects in the blood that caused rotten teeth. They turned to parabiosis, feeding one rat in the parabiotic pair a sugary diet and the other normal food. The shared blood supply meant that both rats had equally sugary blood – but only the one

…

69 pairs of rats in total, in what now seem like rather primitive procedures with varying degrees of success. Eleven pairs died within weeks of ‘parabiotic disease’, thought to be a consequence of both bodies’ immune systems going to war against the foreign tissue in the other (interestingly, we still don

…

in an injury. The same is true of old mice, so the Conboys chose to see what happened to mouse rates of healing in various parabiotic combinations – young-to-young, old-to-old, and old-to-young. Looking at three different tissues – muscle, liver and brain – their results were clear-cut

…

you’re an old mouse sewn to one, you benefit from an enforced exercise regime. That means the advantages to an old mouse in a parabiotic pair go substantially beyond simply adding pro-growth signalling molecules or diluting bad ones. These ambiguities didn’t stop a surge of interest from scientists

The Lucky Years: How to Thrive in the Brave New World of Health

by David B. Agus  · 29 Dec 2015  · 346pp  · 92,984 words

women will grow up to love their servitude and will never dream of revolution. —Aldous Huxley, Brave New World (1932) List of Illustrations Page 3: Parabiotic mice. Courtesy of author. Page 7: Inflection point curve. Courtesy of author. Page 28: Photo of Dr. William Coley. Public domain. Page 31: Brain scans

…

to brain cells that make you smart—and that also have the power to renew themselves or multiply. The surprising conclusion drawn from this recent parabiotic research is that the secret to reversing aging organs is lying asleep inside each of us! Future research will figure out how exactly this age

The Obesity Code: Unlocking the Secrets of Weight Loss

by Jason Fung  · 3 Mar 2016  · 321pp  · 90,850 words

. Hypothalamic obesity: causes, consequences, treatment. Pediatr Endocrinol Rev. 2008 Dec; 6(2):220–7. 12. Hervey GR. The effects of lesions in the hypothalamus in parabiotic rat. J Physiol. 1959 Mar 3; 145(2):336–52.3. 13. Heymsfield SB et al. Leptin for weight loss in obese and lean adults

The Matter of the Heart: A History of the Heart in Eleven Operations

by Thomas Morris  · 31 May 2017

., 162–4 20. ibid., 69 21. ibid., 126–7 22. ibid., 125–6 23. Emanuel Marcus et al., ‘Homologous heart grafts: I. Technique of interim parabiotic perfusion; II. Transplantation of the heart in dogs’, Archives of Surgery 66, no. 2 (1953), 179–91 24. William S. Stoney, ‘Interview with Norman E

In Pursuit of Memory: The Fight Against Alzheimer's

by Joseph Jebelli  · 30 Oct 2017  · 294pp  · 87,429 words

and is reabsorbed by the offspring). When Wagers expressed an interest in exploring the movement of circulating blood stem cells, Weissman advised her to use parabiotic mice. She pursued the work at Harvard, where she established her own laboratory in May 2004. Back at Stanford, word spread of the spooky method