Results 91 to 100 of about 461,249 (325)

Long‐term culture of skin biopsies: maintenance of fibroblast production and competency of reprogramming

open access: yesFEBS Open Bio, EarlyView.
Skin biopsies taken from a patient with an ultra‐rare disorder as well as controls were cultured for up to 473 days. The chunks of skin were serially transferred to a new culture plate when confluent with fibroblasts. Different generations of fibroblasts were analyzed for cell and molecular properties, proliferation, and competence for reprogramming to
Sudiksha Rathan‐Kumar   +3 more
wiley   +1 more source

Ageing-associated DNA methylation dynamics are a molecular readout of lifespan variation among mammalian species

open access: yesGenome Biology, 2018
Background Mammalian species exhibit a wide range of lifespans. To date, a robust and dynamic molecular readout of these lifespan differences has not yet been identified.
Robert Lowe   +13 more
doaj   +1 more source

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

open access: yesFEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source

Epigenetic aging signatures in mice livers are slowed by dwarfism, calorie restriction and rapamycin treatment

open access: yesGenome Biology, 2017
Background Global but predictable changes impact the DNA methylome as we age, acting as a type of molecular clock. This clock can be hastened by conditions that decrease lifespan, raising the question of whether it can also be slowed, for example, by ...
Tina Wang   +9 more
doaj   +1 more source

DETERMINANT FACTORS FOR FERTILITY. CASE OF ALBANIA [PDF]

open access: yes
Fertility Rates in Albania have suffered a great change over the past 20 years. Starting from this fact the main objective of this study is to investigate the relation between fertility rate and its determinant factors.
Arjan Tushaj, Valentina Sinaj
core  

Limited Lifespan vs. Perpetuity: Foundation Survey [PDF]

open access: yes, 2009
Survey gathering information about characteristics of foundations existing in perpetuity vs. foundations with a limited lifespan.

core  

Alkaline Water and Longevity: A Murine Study [PDF]

open access: yes, 2016
The biological effect of alkaline water consumption is object of controversy. The present paper presents a 3-year survival study on a population of 150 mice, and the data were analyzed with accelerated failure time (AFT) model.
Baratella, Davide   +8 more
core   +3 more sources

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

open access: yesFEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Handedness throughout the lifespan: Cross-sectional view on sex differences as asymmetries change

open access: yesFrontiers in Psychology, 2015
Manual asymmetries has been studied by many researchers, however contradictory findings still exist as to whether preferred manual asymmetries increases with age or do we become more ambidextrous.
Mukundhan eSivagnanasunderam   +5 more
doaj   +1 more source

The role of lipid metabolism in neuronal senescence

open access: yesFEBS Open Bio, EarlyView.
Disrupted lipid metabolism, through alterations in lipid species or lipid droplet accumulation, can drive neuronal senescence. However, lipid dyshomeostasis can also occur alongside neuronal senescence, further amplifying tissue damage. Delineating how lipid‐induced senescence emerges in neurons and glial cells, and how it contributes to ageing and ...
Dikaia Tsagkari   +2 more
wiley   +1 more source

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