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Pathobiology of Aging & Age related Diseases

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https://www.readbyqxmd.com/read/27924738/promoting-healthy-aging-intervening-with-diet-drugs-or-exercise
#1
(no author information available yet)
No abstract text is available yet for this article.
2016: Pathobiology of Aging & Age related Diseases
https://www.readbyqxmd.com/read/27876455/multiple-morbidities-in-companion-dogs-a-novel-model-for-investigating-age-related-disease
#2
Kelly Jin, Jessica M Hoffman, Kate E Creevy, Dan G O'Neill, Daniel E L Promislow
The proportion of men and women surviving over 65 years has been steadily increasing over the last century. In their later years, many of these individuals are afflicted with multiple chronic conditions, placing increasing pressure on healthcare systems. The accumulation of multiple health problems with advanced age is well documented, yet the causes are poorly understood. Animal models have long been employed in attempts to elucidate these complex mechanisms with limited success. Recently, the domestic dog has been proposed as a promising model of human aging for several reasons...
2016: Pathobiology of Aging & Age related Diseases
https://www.readbyqxmd.com/read/27782874/corrigendum
#3
(no author information available yet)
[This corrects the article DOI: 10.3402/pba.v6.32981.].
2016: Pathobiology of Aging & Age related Diseases
https://www.readbyqxmd.com/read/27733235/cardiovascular-katp-channels-and-advanced-aging
#4
Hua-Qian Yang, Ekaterina Subbotina, Ravichandran Ramasamy, William A Coetzee
With advanced aging, there is a decline in innate cardiovascular function. This decline is not general in nature. Instead, specific changes occur that impact the basic cardiovascular function, which include alterations in biochemical pathways and ion channel function. This review focuses on a particular ion channel that couple the latter two processes, namely the KATP channel, which opening is promoted by alterations in intracellular energy metabolism. We show that the intrinsic properties of the KATP channel changes with advanced aging and argue that the channel can be further modulated by biochemical changes...
2016: Pathobiology of Aging & Age related Diseases
https://www.readbyqxmd.com/read/27613499/grip-strength-is-potentially-an-early-indicator-of-age-related-decline-in-mice
#5
Xuan Ge, Anthony Cho, Marcia A Ciol, Christina Pettan-Brewer, Jessica Snyder, Peter Rabinovitch, Warren Ladiges
The hand grip test has been correlated with mobility and physical performance in older people and has been shown to be a long-term predictor of mortality. Implementation of new strategies for enhancing healthy aging and maintaining independent living are dependent on predictable preclinical studies. The mouse is used extensively as a model in these types of studies, and the paw grip strength test is similar to the hand grip test for people in that it assesses the ability to grip a device with the paw, is non-invasive and easy to perform, and provides reproducible information...
2016: Pathobiology of Aging & Age related Diseases
https://www.readbyqxmd.com/read/27558317/fatty-old-hearts-role-of-cardiac-lipotoxicity-in-age-related-cardiomyopathy
#6
REVIEW
Konstantinos Drosatos
Age-related cardiomyopathy accounts for a significant part of heart failure cases. Imbalance of the energetic equilibrium of the heart along with mitochondrial dysfunction and impaired β-adrenergic receptor signaling contributes in the aggravation of cardiac function in the elderly. In this review article, studies that correlate cardiac aging with lipotoxicity are summarized. The involvement of inhibition of peroxisome proliferator-activated receptor-α, β-adrenergic receptor desensitization, and mitochondrial dysfunction as underlying mechanisms for the lipid-driven age-related cardiomyopathy are presented with the aim to indicate potential therapeutic targets for cardiac aging...
2016: Pathobiology of Aging & Age related Diseases
https://www.readbyqxmd.com/read/27452489/moving-toward-common-use-of-the-marmoset-as-a-non-human-primate-aging-model
#7
EDITORIAL
Adam B Salmon
No abstract text is available yet for this article.
2016: Pathobiology of Aging & Age related Diseases
https://www.readbyqxmd.com/read/27341957/pharmaceutical-inhibition-of-mtor-in-the-common-marmoset-effect-of-rapamycin-on-regulators-of-proteostasis-in-a-non-human-primate
#8
Matthew Lelegren, Yuhong Liu, Corinna Ross, Suzette Tardif, Adam B Salmon
BACKGROUND: Inhibition of mechanistic target of rapamycin (mTOR) has emerged as a viable means to lengthen lifespan and healthspan in mice, although it is still unclear whether these benefits will extend to other mammalian species. We previously reported results from a pilot experiment wherein common marmosets (Callithrix jacchus) were treated orally with rapamycin to reduce mTOR signaling in vivo in line with previous reports in mice and humans. Further, long-term treatment did not significantly alter body weight, daily activity, blood lipid concentrations, or glucose metabolism in this cohort...
2016: Pathobiology of Aging & Age related Diseases
https://www.readbyqxmd.com/read/27317189/neuropathological-assessment-and-validation-of-mouse-models-for-alzheimer-s-disease-applying-nia-aa-guidelines
#9
EDITORIAL
C Dirk Keene, Martin Darvas, Brian Kraemer, Denny Liggitt, Christina Sigurdson, Warren Ladiges
Dozens of transgenic mouse models, generally based on mutations associated with familial Alzheimer's disease (AD), have been developed, in part, for preclinical testing of candidate AD therapies. However, none of these models has successfully predicted the clinical efficacy of drugs for treating AD patients. Therefore, development of more translationally relevant AD mouse models remains a critical unmet need in the field. A concept not previously implemented in AD preclinical drug testing is the use of mouse lines that have been validated for neuropathological features of human AD...
2016: Pathobiology of Aging & Age related Diseases
https://www.readbyqxmd.com/read/27237224/adaptations-to-chronic-rapamycin-in-mice
#10
Sherry G Dodds, Carolina B Livi, Manish Parihar, Hang-Kai Hsu, Adriana D Benavides, Jay Morris, Martin Javors, Randy Strong, Barbara Christy, Paul Hasty, Zelton Dave Sharp
Rapamycin inhibits mechanistic (or mammalian) target of rapamycin (mTOR) that promotes protein production in cells by facilitating ribosome biogenesis (RiBi) and eIF4E-mediated 5'cap mRNA translation. Chronic treatment with encapsulated rapamycin (eRapa) extended health and life span for wild-type and cancer-prone mice. Yet, the long-term consequences of chronic eRapa treatment are not known at the organ level. Here, we report our observations of chronic eRapa treatment on mTORC1 signaling and RiBi in mouse colon and visceral adipose...
2016: Pathobiology of Aging & Age related Diseases
https://www.readbyqxmd.com/read/27015829/pathology-assessment-is-necessary-to-validate-translational-endpoints-in-preclinical-aging-studies
#11
EDITORIAL
Warren Ladiges
The Geropathology Research Network has established a plan to identify and use pathology-based surrogate endpoints for aging intervention in preclinical drug studies to provide a predictable and short-term anti-aging drug response in line with clinical trials. The plan involves pathological assessment of tissues and organs from strains of old mice, by independent pathology groups in a concurrent manner in order to characterize the changes in lesion incidence and severity in response to anti-aging drugs at specific time points...
2016: Pathobiology of Aging & Age related Diseases
https://www.readbyqxmd.com/read/26725924/metabolism-and-aging-from-molecular-physiology-to-systems-biology
#12
(no author information available yet)
No abstract text is available yet for this article.
2015: Pathobiology of Aging & Age related Diseases
https://www.readbyqxmd.com/read/26654402/planarians-as-a-model-of-aging-to-study-the-interaction-between-stem-cells-and-senescent-cells-in-vivo
#13
Patrick M Perrigue, Joseph Najbauer, Agnieszka A Jozwiak, Jan Barciszewski, Karen S Aboody, Michael E Barish
The depletion of stem cell pools and the accumulation of senescent cells in animal tissues are linked to aging. Planarians are invertebrate flatworms and are unusual in that their stem cells, called neoblasts, are constantly replacing old and dying cells. By eliminating neoblasts in worms via irradiation, the biological principles of aging are exposed in the absence of wound healing and regeneration, making planaria a powerful tool for aging research.
2015: Pathobiology of Aging & Age related Diseases
https://www.readbyqxmd.com/read/26400209/mitochondrial-catalase-suppresses-naturally-occurring-lung-cancer-in-old-mice
#14
Xuang Ge, Christina Pettan-Brewer, John Morton, Katrina Carter, Sy Fatemi, Peter Rabinovitch, Warren C Ladiges
Lung cancer is generally difficult to detect until the late stages of disease, when it is much more difficult to treat because of the more aggressive and invasive behavior. Advanced lung cancer is much more common in older adults making it even more challenging to treat. Adenocarcinoma belongs to a category of non-small cell lung cancers, which comprise up to 40% of all lung cancers, and about half of these have an activating K-ras mutation. Because treatment relapses are common, more effective unconventional treatment and prevention methods are needed...
2015: Pathobiology of Aging & Age related Diseases
https://www.readbyqxmd.com/read/26306821/rapamycin-improves-motor-function-reduces-4-hydroxynonenal-adducted-protein-in-brain-and-attenuates-synaptic-injury-in-a-mouse-model-of-synucleinopathy
#15
Xiang Bai, Margaret Chia-Ying Wey, Elizabeth Fernandez, Matthew J Hart, Jonathan Gelfond, Alex F Bokov, Sheela Rani, Randy Strong
BACKGROUND: Synucleinopathy is any of a group of age-related neurodegenerative disorders including Parkinson's disease, multiple system atrophy, and dementia with Lewy Bodies, which is characterized by α-synuclein inclusions and parkinsonian motor deficits affecting millions of patients worldwide. But there is no cure at present for synucleinopathy. Rapamycin has been shown to be neuroprotective in several in vitro and in vivo synucleinopathy models. However, there are no reports on the long-term effects of RAPA on motor function or measures of neurodegeneration in models of synucleinopathy...
2015: Pathobiology of Aging & Age related Diseases
https://www.readbyqxmd.com/read/26140577/geropathology-research-network-symposium-2015
#16
Warren Ladiges
No abstract text is available yet for this article.
2015: Pathobiology of Aging & Age related Diseases
https://www.readbyqxmd.com/read/25994420/the-emerging-role-of-senescent-cells-in-tissue-homeostasis-and-pathophysiology
#17
Kaoru Tominaga
Cellular senescence is a state of permanent growth arrest and is thought to play a pivotal role in tumor suppression. Cellular senescence may play an important role in tumor suppression, wound healing, and protection against tissue fibrosis in physiological conditions in vivo. However, accumulating evidence that senescent cells may have harmful effects in vivo and may contribute to tissue remodeling, organismal aging, and many age-related diseases also exists. Cellular senescence can be induced by various intrinsic and extrinsic factors...
2015: Pathobiology of Aging & Age related Diseases
https://www.readbyqxmd.com/read/25787941/a-model-of-chronic-hepatitis-in-mice-expressing-a-truncated-xrcc1-protein
#18
Xuan Ge, Christina Pettan-Brewer, John Morton, Warren C Ladiges
No abstract text is available yet for this article.
2015: Pathobiology of Aging & Age related Diseases
https://www.readbyqxmd.com/read/25787940/animal-models-play-a-vital-role-in-translational-aging-research
#19
Warren C Ladiges
No abstract text is available yet for this article.
2015: Pathobiology of Aging & Age related Diseases
https://www.readbyqxmd.com/read/25758563/lingo-1-promotes-lysosomal-degradation-of-amyloid-%C3%AE-protein-precursor
#20
Rian de Laat, James S Meabon, Jesse C Wiley, Mark P Hudson, Thomas J Montine, Mark Bothwell
Sequential proteolytic cleavages of amyloid-β protein precursor (AβPP) by β-secretase and γ-secretase generate amyloid β (Aβ) peptides, which are thought to contribute to Alzheimer's disease (AD). Much of this processing occurs in endosomes following endocytosis of AβPP from the plasma membrane. However, this pathogenic mode of processing AβPP may occur in competition with lysosomal degradation of AβPP, a common fate of membrane proteins trafficking through the endosomal system. Following up on published reports that LINGO-1 binds and promotes the amyloidogenic processing of AβPP we have examined the consequences of LINGO-1/AβPP interactions...
2015: Pathobiology of Aging & Age related Diseases
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