Re: [GRG] Short corrected version. Re: Longevity lessons from Brandt’s bat, the little brown bat, and the naked mole-rat

Greg:

 

Thanks for the kind words.

 

Yes, you are right– in going through the bats, indeed it
seems that the aging studies of the whole order chiroptera have been
polluted by the very long lives (up to 30 years) of various hibernators (70% of
bats), and if you take only the bats that don’t, they might last a
little longer than humans metabolically, but not THAT much longer. Of course, as
you note, humans are already nearly the champion mammals when it comes to
metabolic duration (lifetime energy expenditure = LEE, see below). Now it
seems that humans and frugivorous bats about share the title for
mammals that keep their body temp where a mammal should. Naked mole rats, even
at far lower temperatures than the average mammals, don’t do significantly
better than humans.

 

The only better warm blooded creatures are not mammals
(even bats), but of course birds. They are better than I had realized, because I
was being fooled by statistics from bats that spend part of every day, and
often every year, in near suspended animation, like the alien contact
team in the film 2001: A Space Odyssey. There exist macaw
birds (we’ve all seen the blue-and-yellow, and amazing scarlet
varieties) that have lived 80 and even 100 years. The macaw is a type
of large parrot that weighs about a kg.  Macaws are psittaciformes, a
particularly long-lived order of birds, perhaps the longest-lived (Condors are
presumably better, but too rare to find out).  Psittaciformes don’t
hibernate or undergo torpor.

 

I have been unable to discover what the metabolism of a macaw
is like. People have studied passerines (songbirds) but nobody seems to have
formally metabolically studied anything but the smallest parrot, the
budgerigar (budgie) “parakeet” (= small parrot). Even these 30 gram birds
(weight of a mouse) may live 21 years . They probably eat as much as
380 kcal/kg in the wild, but their BMR is supposedly only 12 watts/kg which
is only 20 kcal/kg/d (this is not much different from an adult human’s BMR
of ~ 25 kcal/kg). This must be wrong, as other sources give 200 kcal/kg^.75
for small parrots’ food requirements, which would (if this can be scaled to
large parrots) gives 200 kcal/d for a 1 kg macaw and 14 kcal/d for the 30 g
budgie.  Of course, food requirements for even caged birds would be
expected to be at least twice the BM

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About Johnny Adams

My full-time commitment is to slow and ultimately reverse age related functional decline to increase healthy years of life. I’ve been active in this area since the 1970s, steadily building skills and accomplishments. I have a good basic understanding of the science of aging, and have many skills that complement those of scientists so they can focus on science to advance our shared mission. Broad experience Top skills: administration, management, information technology (data and programming), communications, writing, marketing, market research and analysis, public speaking, forging ethical win-win outcomes among stakeholders (i.e. high level "selling"). Knowledge in grant writing, fundraising, finance. Like most skilled professionals, I’m best described as a guy who defines an end point, then figures out how to get there. I enjoy the conception, design, execution and successful completion of a grand plan. Executive Director Gerontology Research Group (GRG). Manages Email discussion forum, web site, meetings and oversees supercentenarian (oldest humans, 110+ years) research. CEO / Executive Director Carl I. Bourhenne Medical Research Foundation (Aging Intervention Foundation), an IRS approved 501(c)(3) nonprofit. http://www.AgingIntervention.org Early contributor to Supercentenarian Research Foundation. Co-Founder Geroscience Healthspan Forum. Active contributor to numerous initiatives to increase healthy years of life. Co-authored book on conventional, practical methods available today to slow the processes of aging – nutrition, exercise, behavior modification and motivation, stress reduction, proper supplementation, damage caused by improper programs, risk reduction and others. Fundamental understanding of, and experience in the genomics of longevity (internship analyzing and curating longevity gene papers). Biological and technical includes information technology, software development and computer programming, bioinformatics and protein informatics, online education, training programs, regulatory, clinical trials software, medical devices (CAT scanners and related), hospital electrical equipment testing program. Interpersonal skills – good communication, honest, well liked, works well in teams or alone. Real world experience collaborating in interdisciplinary teams in fast paced organizations. Uses technology to advance our shared mission. Education: MBA 1985 University of Southern California -- Deans List, Albert Quon Community Service Award (for volunteering with the American Longevity Association and helping an elderly lady every other week), George S. May Scholarship, CA State Fellowship. BA psychology, psychobiology emphasis 1983 California State University Fullerton Physiological courses as well as core courses (developmental, abnormal etc). UCLA Psychobiology 1978, one brief but fast moving and fulfilling quarter. Main interest was the electrochemical basis of consciousness. Also seminars at the NeuroPsychiatric Institute. Other: Ongoing conferences, meetings and continuing education. Aging, computer software and information technology. Some molecular biology, biotech, bio and protein informatics, computer aided drug design, clinical medical devices, electronics, HIPAA, fundraising through the Assoc. of Fundraising Professionals. Previous careers include: Marketing Increasing skill set and successes in virtually all phases, with valuable experience in locating people and companies with the greatest need and interest in a product or service, and sitting across the table with decision makers and working out agreements favorable to all. Information Technology: Management, data analysis and programming in commercial and clinical trials systems, and bioinformatics and protein informatics. As IT Director at Newport Beach, CA based technology organization Success Family of Continuing Education Companies, provided online software solutions for insurance and financial professionals in small to Fortune 500 size companies. We were successful with lean team organization (the slower moving competition was unable to create similar software systems). Medical devices: At Omnimedical in Paramount CA developed and managed quality assurance dept. and training depts. for engineers, physicians and technicians. Designed hospital equipment testing program for hospital services division. In my early 20’s I was a musician, and studied psychology and music. Interned with the intention of becoming a music therapist. These experiences helped develop valuable skills used today to advance our shared mission of creating aging solutions.
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