MALONDIALDEHYDE (MDA) (ZAT OKSIDAN YANG MEMPERCEPAT PROSES PENUAAN)
Malondialdehyde (MDA) is the end product of fat peroxidation due to the breakdown of fatty acid chains which are compounds that toxic to cells. Fat peroxidation is caused by body fat bound to free radicals such as hydroxyl radicals, superoxide anion ...
Novrina Situmorang, Zulham Zulham
doaj +1 more source
Mitochondrial DNA Mutations in Mutator Mice Confer Respiration Defects and B-Cell Lymphoma Development [PDF]
Mitochondrial DNA (mtDNA) mutator mice are proposed to express premature aging phenotypes including kyphosis and hair loss (alopecia) due to their carrying a nuclear-encoded mtDNA polymerase with a defective proofreading function, which causes ...
Hashizume Osamu+11 more
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Altered modulation of lamin A/C-HDAC2 interaction and p21 expression during oxidative stress response in HGPS [PDF]
Defects in stress response are main determinants of cellular senescence and organism aging. In fibroblasts from patients affected by Hutchinson-Gilford progeria, a severe LMNA-linked syndrome associated with bone resorption, cardiovascular disorders, and
Andrenacci, Davide+13 more
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Premature and accelerated aging: HIV or HAART? [PDF]
Highly active antiretroviral therapy (HAART) has significantly increased life expectancy of the human immunodeficiency virus (HIV)-positive population. Nevertheless, the average lifespan of HIV-patients remains shorter compared to uninfected individuals.
Smith, R.L.+4 more
openaire +6 more sources
Mechanisms of chemotherapy-induced human ovarian aging: double strand DNA breaks and microvascular compromise [PDF]
The mechanism of chemotherapy-induced acceleration of ovarian aging is not fully understood. We used doxorubicin, a widely used cancer chemotherapeutic, in a variety of in vivo xenograft, and in vitro models to investigate the impact of chemotherapy ...
Darzynkiewicz, Zbigniew+3 more
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Cardiac electrical defects in progeroid mice and Hutchinson-Gilford progeria syndrome patients with nuclear lamina alterations [PDF]
Hutchinson–Gilford progeria syndrome (HGPS) is a rare genetic disease caused by defective prelamin A processing, leading to nuclear lamina alterations, severe cardiovascular pathology, and premature death.
Benítez Iglesias, Raúl+14 more
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Chromosome positioning is largely unaffected in lymphoblastoid cell lines containing emerin or A-type lamin mutations [PDF]
Gene-poor human chromosomes are reproducibly found at the nuclear periphery in proliferating cells. There are a number of inner nuclear envelope proteins that may have roles in chromosome location and anchorage, e.g. emerin and A-type lamins.
Bridger, JM+3 more
core +1 more source
During decades, aging has been regarded as the consequence of a stochastic process caused by the accumulative effect of damaged molecules. However, recent experimental evidences have extended this view and suggested that aging also requires active signaling programs for the maintenance of the aged state [1].
Carlos López-Otín+2 more
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Premature aging in genetic diseases: what conclusions can be drawn for physiological aging
According to current views the major hallmarks of physiological aging may be subdivided into three categories, primary causes of cellular damage (genomic instability, telomere attrition, loss of proteostasis, epigenetic alterations and compromised ...
Filip Milosic+2 more
doaj +1 more source
Sirtuin 1 and Skin: Implications in Intrinsic and Extrinsic Aging—A Systematic Review
Skin, as the outermost organ of the body, is constantly exposed to both intrinsic and extrinsic causative factors of aging. Intrinsic aging is related to compromised cellular proliferative capacity, and may be accelerated by harmful environmental ...
Angelika Bielach-Bazyluk+6 more
doaj +1 more source