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Inflammaging

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https://www.readbyqxmd.com/read/28917662/successful-optic-nerve-regeneration-in-the-senescent-zebrafish-despite-age-related-decline-of-cell-intrinsic-and-extrinsic-response-processes
#1
Jessie Van Houcke, Ilse Bollaerts, Emiel Geeraerts, Benjamin Davis, An Beckers, Inge Van Hove, Kim Lemmens, Lies De Groef, Lieve Moons
Dysfunction of the central nervous system (CNS) in neurodegenerative diseases or after brain lesions seriously affects life quality of a growing number of elderly, since the adult CNS lacks the capacity to replace or repair damaged neurons. Despite intensive research efforts, full functional recovery after CNS disease and/or injury remains challenging, especially in an aging environment. As such, there is a rising need for an aging model in which the impact of aging on successful regeneration can be studied...
August 24, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/28899766/health-relevance-of-the-modification-of-low-grade-inflammation-in-ageing-inflammageing-and-the-role-of-nutrition
#2
REVIEW
Philip C Calder, Nabil Bosco, Raphaëlle Bourdet-Sicard, Lucile Capuron, Nathalie Delzenne, Joel Doré, Claudio Franceschi, Markus J Lehtinen, Tobias Recker, Stefano Salvioli, Francesco Visioli
Ageing of the global population has become a public health concern with an important socio-economic dimension. Ageing is characterised by an increase in the concentration of inflammatory markers in the bloodstream, a phenomenon that has been termed "inflammageing". The inflammatory response is beneficial as an acute, transient reaction to harmful conditions, facilitating the defence, repair, turnover and adaptation of many tissues. However, chronic and low grade inflammation is likely to be detrimental for many tissues and for normal functions...
September 9, 2017: Ageing Research Reviews
https://www.readbyqxmd.com/read/28861086/immunobiography-and-the-heterogeneity-of-immune-responses-in-the-elderly-a-focus-on-inflammaging-and-trained-immunity
#3
REVIEW
Claudio Franceschi, Stefano Salvioli, Paolo Garagnani, Magda de Eguileor, Daniela Monti, Miriam Capri
Owing to its memory and plasticity, the immune system (IS) is capable of recording all the immunological experiences and stimuli it was exposed to. The combination of type, dose, intensity, and temporal sequence of antigenic stimuli that each individual is exposed to has been named "immunobiography." This immunological history induces a lifelong continuous adaptation of the IS, which is responsible for the capability to mount strong, weak or no response to specific antigens, thus determining the large heterogeneity of immunological responses...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28836492/association-of-vegetarian-diet-with-inflammatory-biomarkers-a-systematic-review-and-meta-analysis-of-observational-studies
#4
Fahimeh Haghighatdoost, Nick Bellissimo, Julia O Totosy de Zepetnek, Mohammad Hossein Rouhani
OBJECTIVE: Vegetarian diets contain various anti-inflammatory components. We aimed to investigate the effects of vegetarianism on inflammatory biomarkers when compared with omnivores. DESIGN: Systematic review and meta-analysis. SETTING: Literature search was conducted in Science Direct, Proquest, MEDLINE and Google Scholar up to June 2016. Summary estimates and corresponding 95 % CI were derived via the DerSimonian and Laird method using random effects, subgroup analyses were run to find the source of heterogeneity and a fixed-effect model examined between-subgroup heterogeneity...
August 24, 2017: Public Health Nutrition
https://www.readbyqxmd.com/read/28808241/specific-calpain-inhibition-protects-kidney-against-inflammaging
#5
Guillaume Hanouna, Laurent Mesnard, Sophie Vandermeersch, Joëlle Perez, Sandrine Placier, Jean-Philippe Haymann, Fabien Campagne, Julien Moroch, Aurélien Bataille, Laurent Baud, Emmanuel Letavernier
Calpains are ubiquitous pro-inflammatory proteases, whose activity is controlled by calpastatin, their specific inhibitor. Transgenic mice over-expressing rabbit calpastatin (CalpTG) are protected against vascular remodelling and angiotensin II-dependent inflammation. We hypothesized that specific calpain inhibition would protect against aging-related lesions in arteries and kidneys. We analysed tissues from 2-months and 2-years-old CalpTG and wild-type mice and performed high throughput RNA-Sequencing of kidney tissue in aged mice...
August 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28806906/age-associated-mrna-expression-changes-in-bovine-endometrial-cells-in-vitro
#6
Nao Tanikawa, Ayaka Ohtsu, Ryouka Kawahara-Miki, Koji Kimura, Shuichi Matsuyama, Hisataka Iwata, Takehito Kuwayama, Koumei Shirasuna
BACKGROUND: Endometrial cells secrete various cytokines and the dysfunction of endometrial cells may directly lead to infertility. Interferon tau (IFNT) secreted by trophoblast cells, a well-known pregnancy recognition signal in ruminants, acts on the uterus to prepare for pregnancy. Aging causes cellular and organ dysfunction, and advanced maternal age is associated with reduced fertility. However, few studies have investigated age-dependent changes in the uterus. METHODS: Using next generation sequencing and real-time PCR, we examined mRNA expression in bovine endometrial cells in vitro obtained from young (mean 45...
August 14, 2017: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/28782588/impact-of-aging-immune-system-on-neurodegeneration-and-potential-immunotherapies
#7
REVIEW
Zhanfeng Liang, Yang Zhao, Linhui Ruan, Linnan Zhu, Kunlin Jin, Qichuan Zhuge, Dong-Ming Su, Yong Zhao
The interaction between the nervous and immune systems during aging is an area of avid interest, but many aspects remain unclear. This is due, not only to the complexity of the aging process, but also to a mutual dependency and reciprocal causation of alterations and diseases between both the nervous and immune systems. Aging of the brain drives whole body systemic aging, including aging-related changes of the immune system. In turn, the immune system aging, particularly immunosenescence and T cell aging initiated by thymic involution that are sources of chronic inflammation in the elderly (termed inflammaging), potentially induces brain aging and memory loss in a reciprocal manner...
August 4, 2017: Progress in Neurobiology
https://www.readbyqxmd.com/read/28768292/assessing-inflammageing
#8
Ursula Müller-Werdan, Sebastian Nuding, Mario Ost
PURPOSE OF REVIEW: Immunosenescence has been scrutinized in detail, and evidence that inflammation and ageing are interrelated is consistent. Still, a gold standard for assessing the biological age of the immune function in an individual patient is lacking, so that immunosenescence is still not a quantifiable criterion in clinical decision-making processes. RECENT FINDINGS: This review highlights recent (partly ongoing) studies into biomarkers of inflammation to assess immunosenescence, including large-scale studies, and quotes expert opinion statements...
September 2017: Current Opinion in Clinical Nutrition and Metabolic Care
https://www.readbyqxmd.com/read/28768257/autoimmunity-in-the-elderly-insights-from-basic-science-and-clinics-a-mini-review
#9
Abdulla Watad, Nicola Luigi Bragazzi, Mohammad Adawi, Howard Amital, Elias Toubi, Bat-Sheva Porat, Yehuda Shoenfeld
Advancements in the field of biomedicine, including the control of infectious diseases through antibiotics and vaccination practices and the prevention of chronic disorders, have led to reduced mortality, increased life expectancy and, as such, growth of the older population. Ageing is accompanied by profound morphological and physiological alterations. In particular, the immune system undergoes a complex series of remodeling/restructuring events, involving almost all compartments - both the innate and the adaptive system...
July 29, 2017: Gerontology
https://www.readbyqxmd.com/read/28704219/inflammaging-and-the-age-specific-responsiveness-to-stretch-shortening-contractions
#10
Erik P Rader, Brent A Baker
With aging, muscle injury from rapid, continuous stretch-shortening contractions (SSC) is prolonged, and maladaptation to moderate-velocity, intermittent SSC is more common. We hypothesize that high baseline levels of inflammatory signaling and oxidative stress may underlie these outcomes, whereas careful modulation of high-intensity SSC training design resets basal conditions and permits muscle adaptation to SSC.
October 2017: Exercise and Sport Sciences Reviews
https://www.readbyqxmd.com/read/28701312/inflammation-and-premature-aging-in-advanced-chronic-kidney-disease
#11
Jeroen Kooman, Marijke Dekker, Len A Usvyat, Peter Kotanko, Frank Van der Sande, Casper G Schalkwijk, Paul G Shiels, Peter Stenvinkel
Systemic inflammation in end-stage renal disease (ESRD) is an established risk factor for mortality and a catalyst for other complications which are related to a premature aging phenotype, including muscle wasting, vascular calcification and other forms of premature vascular disease, depression, osteoporosis and frailty. Uremic inflammation is also mechanistically related to mechanisms involved in the aging process, such as telomere shortening, mitochondrial dysfunction, and altered nutrient sensing, which can have direct effect on cellular and tissue function...
July 12, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28676015/effects-of-resveratrol-and-other-polyphenols-on-sirt1-relevance-to-brain-function-during-aging
#12
F Sarubbo, S Esteban, A Miralles, D Moranta
Classically the oxidative stress and more recently inflammatory processes have been identified as the major causes of brain aging. Oxidative stress and inflammation affect each other, but there is more information about the effects of oxidative stress on aging than regarding the contribution of inflammation on it. In the intense research for methods to delay or mitigate the effects of aging, are interesting polyphenols, natural molecules synthesized by plants (e.g. resveratrol). Their antioxidant and anti-inflammatory properties become them useful molecules in the prevention of aging...
July 3, 2017: Current Neuropharmacology
https://www.readbyqxmd.com/read/28650104/alzheimer-s-disease-and-metabolic-syndrome-a-link-from-oxidative-stress-and-inflammation-to-neurodegeneration
#13
REVIEW
Eduardo Rojas-Gutierrez, Guadalupe Muñoz-Arenas, Samuel Treviño, Blanca Espinosa, Raúl Chavez, Karla Rojas, Gonzalo Flores, Alfonso Díaz, Jorge Guevara
Alzheimer's disease (AD) is the most common cause of dementia and one of the most important causes of morbidity and mortality among the aging population. AD diagnosis is made post-mortem, and the two pathologic hallmarks, particularly evident in the end stages of the illness, are amyloid plaques and neurofibrillary tangles (NFT). Currently, there is no curative treatment for AD. Additionally, there is a strong relation between oxidative stress, metabolic syndrome (MetS) and AD. The high levels of circulating lipids and glucose imbalances amplify lipid peroxidation that gradually diminishes the antioxidant systems, causing high levels of oxidative metabolism that affects cell structure, leading to neuronal damage...
June 26, 2017: Synapse
https://www.readbyqxmd.com/read/28643373/cytomegalovirus-dna-is-highly-prevalent-in-the-blood-of-patients-with-asthma-and-is-associated-with-age-and-asthma-traits
#14
M L Kowalski, A Wardzynska, M Studzinska, M Pawelczyk, Z J Lesnikowski, E Paradowska
Cytomegalovirus (CMV) IgG antibodies have been associated with inflammaging and immunosenescence. We aimed to assess the presence of CMV DNA in the blood of adult and elderly patients with bronchial asthma to establish potential association of CMV DNAemia with asthma and asthma characteristics. Eighty-five elderly asthmatics, 74 younger asthma patients, and 114 age-matched controls were recruited. The CMV DNA was detected using commercial artus assay in 10.7% of asthma patients, but was negative in all control individuals...
June 22, 2017: Allergy
https://www.readbyqxmd.com/read/28624504/proinsulin-protects-against-age-related-cognitive-loss-through-anti-inflammatory-convergent-pathways
#15
Rubén Corpas, Alberto M Hernández-Pinto, David Porquet, Catalina Hernández-Sánchez, Fatima Bosch, Arantxa Ortega-Aznar, Francesc Comellas, Enrique J de la Rosa, Coral Sanfeliu
Brain inflammaging is increasingly considered as contributing to age-related cognitive loss and neurodegeneration. Despite intensive research in multiple models, no clinically effective pharmacological treatment has been found yet. Here, in the mouse model of brain senescence SAMP8, we tested the effects of proinsulin, a promising neuroprotective agent that was previously proven to be effective in mouse models of retinal neurodegeneration. Proinsulin is the precursor of the hormone insulin but also upholds developmental physiological effects, particularly as a survival factor for neural cells...
June 15, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28595318/mediterranean-diet-and-inflammaging-within-the-hormesis-paradigm
#16
Morena Martucci, Rita Ostan, Fiammetta Biondi, Elena Bellavista, Cristina Fabbri, Claudia Bertarelli, Stefano Salvioli, Miriam Capri, Claudio Franceschi, Aurelia Santoro
A coherent set of epidemiological data shows that the Mediterranean diet has beneficial effects capable of preventing a variety of age-related diseases in which low-grade, chronic inflammation/inflammaging plays a major role, but the underpinning mechanism(s) is/are still unclear. It is argued here that the Mediterranean diet can be conceptualized as a form of chronic hormetic stress, similar to what has been proposed regarding calorie restriction, the most thoroughly studied nutritional intervention. Data on the presence in key Mediterranean foods of a variety of compounds capable of exerting hormetic effects are summarized, and the mechanistic role of the nuclear factor erythroid 2 pathway is highlighted...
June 8, 2017: Nutrition Reviews
https://www.readbyqxmd.com/read/28592728/inflammaging-and-age-associated-diseases
#17
Ichiro Manabe
No abstract text is available yet for this article.
2017: Nihon Ronen Igakkai Zasshi. Japanese Journal of Geriatrics
https://www.readbyqxmd.com/read/28536183/the-nlrp3-inflammasome-contributes-to-sarcopenia-and-lower-muscle-glycolytic-potential-in-old-mice
#18
Marin Jane McBride, Kevin P Foley, Donna M D'Souza, Yujin E Li, Trevor C Lau, Thomas J Hawke, Jonathan D Schertzer
The mechanisms underpinning decreased skeletal muscle strength and slowing of movement during aging are ill-defined. "Inflammaging," increased inflammation with advancing age, may contribute to aspects of sarcopenia, but little is known about the participatory immune components. We discovered that aging was associated with increased caspase-1 activity in mouse skeletal muscle. We hypothesized that the caspase-1-containing NLRP3 inflammasome contributes to sarcopenia in mice. Male C57BL/6J wild-type (WT) and NLRP3(-/-) mice were aged to 10 (adult) and 24 mo (old)...
August 1, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28471941/basic-science-and-pathogenesis-of-ageing-with-hiv-potential-mechanisms-and-biomarkers
#19
Claire Lagathu, Andrea Cossarizza, Véronique Béréziat, Milena Nasi, Jacqueline Capeau, Marcello Pinti
: The increased prevalence of age-related comorbidities and mortality is worrisome in ageing HIV-infected patients. Here, we aim to analyse the different ageing mechanisms with regard to HIV infection. Ageing results from the time-dependent accumulation of random cellular damage. Epigenetic modifications and mitochondrial DNA haplogroups modulate ageing. In antiretroviral treatment-controlled patients, epigenetic clock appears to be advanced, and some haplogroups are associated with HIV infection severity. Telomere shortening is enhanced in HIV-infected patients because of HIV and some nucleoside analogue reverse transcriptase inhibitors...
June 1, 2017: AIDS
https://www.readbyqxmd.com/read/28448962/progressive-changes-in-non-coding-rna-profile-in-leucocytes-with-age
#20
Maider Muñoz-Culla, Haritz Irizar, Ana Gorostidi, Ainhoa Alberro, Iñaki Osorio-Querejeta, Javier Ruiz-Martínez, Javier Olascoaga, Adolfo López de Munain, David Otaegui
It has been observed that immune cell deterioration occurs in the elderly, as well as a chronic low-grade inflammation called inflammaging. These cellular changes must be driven by numerous changes in gene expression and in fact, both protein-coding and non-coding RNA expression alterations have been observed in peripheral blood mononuclear cells from elder people. In the present work we have studied the expression of small non-coding RNA (microRNA and small nucleolar RNA -snoRNA-) from healthy individuals from 24 to 79 years old...
April 2017: Aging
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