Is it possible to live to 120? Yes, according to the burgeoning field of longevity science. Over twelve weeks, reporter Darren Mara puts his own body to the test to find out if aging really is a thing of the past.
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Pain management is an important component of caring for adults with cerebral palsy. However, it’s the least understood comorbidity in the adult cerebral palsy population.
A study led by Mark Peterson, Ph.D., M.S., FACSM, a professor of physical medicine and rehabilitation at University of Michigan Health, found that adults living with cerebral palsy had a very high occurrence of pain, with 90% having a pain history and 74% having multiple diagnoses of pain coming from different origins such as the lower back, irritable bowels, joint arthritis and chronic headaches.
The research is published in the journal JAMA Neurology.
(THE CONVERSATION) Racism steals time from people’s lives – possibly because of the space it occupies in the mind.
Question Is racial discrimination associated with brain connectivity, and are alterations in deep brain functional connectivity associated with accelerated epigenetic aging?
Findings In this cohort study of 90 Black women in the US, higher self-reported racial discrimination was associated with greater resting-state functional connectivity (RSFC) between the locus coeruleus (LC) and precuneus. Significant indirect effects were observed for the association between racial discrimination frequency and DNA methylation age acceleration.
Meaning These findings suggest that racial discrimination is associated with greater connectivity in pathways involved with rumination, which may increase vulnerability to stress-related disorders and neurodegenerative disease via epigenetic age acceleration.
Sorry, lol, i had to.
‘I’m never going to age’
It’s a crucial support to most everything our body does. When we’re young, our body is efficient at producing NAD.
As people age, production slowly tapers — which studies suggest might be one of the reasons we tend to feel worse as we get older.
But scientists caution that they have yet to design a NAD product that our body can use in the same way that it uses the NAD we produce naturally.
A group of scientists has devised a plan to safeguard Earth’s species in a cryogenic biorepository on the moon.
Intended to save species in the event of a disaster on Earth, the plan makes use of craters that are permanently in shadow and therefore cold enough to allow cryogenic preservation of biological material without using electricity or liquid nitrogen, according to research from a group led by scientists at the Smithsonian, published last week.
The paper, published in the journal BioScience, draws on the successful cryopreservation of skin samples from a fish, and outlines a method for creating a biorepository that would keep samples of other species safe.
The ability to accurately quantify biological age could help monitor and control healthy aging. Epigenetic clocks have emerged as promising tools for estimating biological age, yet so far, most of these clocks have been developed from heterogeneous bulk tissues, and are thus composites of two aging processes, one reflecting the change of cell-type composition with age and another reflecting the aging of individual cell-types. There is thus a need to dissect and quantify these two components of epigenetic clocks, and to develop epigenetic clocks that can yield biological age estimates at cell-type resolution. Here we demonstrate that in blood and brain, approximately 35% of an epigenetic clock’s accuracy is driven by underlying shifts in lymphocyte and neuronal subsets, respectively. Using brain and liver tissue as prototypes, we build and validate neuron and hepatocyte specific DNA methylation clocks, and demonstrate that these cell-type specific clocks yield improved estimates of chronological age in the corresponding cell and tissue-types. We find that neuron and glia specific clocks display biological age acceleration in Alzheimer’s Disease with the effect being strongest for glia in the temporal lobe. The hepatocyte clock is found accelerated in liver under various pathological conditions. In contrast, non-cell-type specific clocks do not display biological age-acceleration, or only do so more marginally. In summary, this work highlights the importance of dissecting epigenetic clocks and quantifying biological age at cell-type resolution.
The authors have declared no competing interest.
The Illumina DNA methylation datasets analyzed here are all freely available from GEO (www.ncbi.nlm.nih.gov/geo).