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https://www.readbyqxmd.com/read/29141943/anemia-at-older-age-etiologies-clinical-implications-and-management
#1
Reinhard Stauder, Peter Valent, Igor Theurl
Anemia is quite frequently diagnosed in older individuals and is a key indicator of various reactive and clonal conditions. Many underlying diseases, like the myelodysplastic syndromes (MDS), develop preferentially in elderly individuals. The prevalence of anemia at older age is increasing, and this is mainly due to more frequently applied diagnostics and demographic changes in our societies. The etiology of anemia at older age is complex and ranges from bone marrow failure syndromes to chronic kidney disease, and from nutritional deficiencies to inflammatory processes including inflammaging in immunosenescence...
November 15, 2017: Blood
https://www.readbyqxmd.com/read/29126143/understanding-how-dogs-age-longitudinal-analysis-of-markers-of-inflammation-immune-function-and-oxidative-stress
#2
Janet E Alexander, Alison Colyer, Richard M Haydock, Michael G Hayek, JeanSoon Park, Rafael de Cabo
As in human populations, advances in nutrition and veterinary care have led to an increase in the lifespan of companion animals. Detrimental physiological changes occurring later in life must be understood before interventions can be made to slow or reduce them. One important aspect of human aging is upregulation of the inflammatory response and increase in oxidative damage resulting in pathologies linked to chronic inflammation. To determine whether similar processes occur in the aging dog, changes in markers of inflammation and oxidative stress were investigated in 80 Labrador retrievers from adulthood to the end of life...
November 6, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/29106912/cardiac-macrophage-biology-in-the-steady-state-heart-the-aging-heart-and-following-myocardial-infarction
#3
REVIEW
Yonggang Ma, Alan J Mouton, Merry L Lindsey
Macrophages play critical roles in homeostatic maintenance of the myocardium under normal conditions and in tissue repair after injury. In the steady-state heart, resident cardiac macrophages remove senescent and dying cells and facilitate electrical conduction. In the aging heart, the shift in macrophage phenotype to a proinflammatory subtype leads to inflammaging. Following myocardial infarction (MI), macrophages recruited to the infarct produce both proinflammatory and anti-inflammatory mediators (cytokines, chemokines, matrix metalloproteinases, and growth factors), phagocytize dead cells, and promote angiogenesis and scar formation...
October 13, 2017: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/29081381/inflammageing-and-metaflammation-the-yin-and-yang-of-type-2-diabetes
#4
REVIEW
Francesco Prattichizzo, Valeria De Nigris, Rosangela Spiga, Elettra Mancuso, Lucia La Sala, Roberto Antonicelli, Roberto Testa, Antonio Domenico Procopio, Fabiola Olivieri, Antonio Ceriello
Type 2 diabetes mellitus (T2DM) is characterised by chronic low-grade inflammation, recently referred to as 'metaflammation', a relevant factor contributing to the development of both diabetes and its complications. Nonetheless, 'canonical' anti-inflammatory drugs do not yield satisfactory results in terms of prevention of diabetes progression and of cardiovascular events, suggesting that the causal mechanisms fostering metaflammation deserve further research to identify new druggable targets. Metaflammation resembles ageing-induced low-grade inflammation, previously referred to as inflammageing, in terms of clinical presentation and the molecular profile, pointing to a common aetiology for both conditions...
October 31, 2017: Ageing Research Reviews
https://www.readbyqxmd.com/read/29080843/aging-and-parkinson-s-disease-inflammaging-neuroinflammation-and-biological-remodelling-as-key-factors-in-pathogenesis
#5
REVIEW
Vittorio Calabrese, Aurelia Santoro, Daniela Monti, Rosalia Crupi, Rosanna Di Paola, Saverio Latteri, Salvatore Cuzzocrea, Mario Zappia, James Giordano, Edward J Calabrese, Claudio Franceschi
In order to better understand the pathogenesis of Parkinson's Disease (PD) it is important to consider possible contributory factors inherent to the aging process, as age-related changes in a number of physiological systems (perhaps incurred within particular environments) appear to influence the onset and progression of neurodegenerative disorders. Accordingly, we posit that a principal mechanism underlying PD is inflammaging, i.e. the chronic inflammatory process characterized by an imbalance of pro- and anti-inflammatory mechanisms which has been recognized as operative in several age-related, and notably neurodegenerative diseases...
October 25, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/29045001/anti-inflammaging-effects-of-human-alpha-1-antitrypsin
#6
Ye Yuan, Benedetto DiCiaccio, Ying Li, Ahmed S Elshikha, Denis Titov, Brian Brenner, Lee Seifer, Hope Pan, Nurdina Karic, Mohammad A Akbar, Yuanqing Lu, Sihong Song, Lei Zhou
Inflammaging plays an important role in most age-related diseases. However, the mechanism of inflammaging is largely unknown, and therapeutic control of inflammaging is challenging. Human alpha-1 antitrypsin (hAAT) has immune-regulatory, anti-inflammatory, and cytoprotective properties as demonstrated in several disease models including type 1 diabetes, arthritis, lupus, osteoporosis, and stroke. To test the potential anti-inflammaging effect of hAAT, we generated transgenic Drosophila lines expressing hAAT...
October 17, 2017: Aging Cell
https://www.readbyqxmd.com/read/29017893/chronic-inflammation-inflammaging-in-the-ageing-cochlea-a-novel-target-for-future-presbycusis-therapy
#7
Nathan Watson, Bo Ding, Xiaoxia Zhu, Robert D Frisina
Chronic, low-grade inflammation, or inflammaging, is a crucial contributor to various age-related pathologies and natural processes in aging tissue, including the nervous system. Over the past two decades, much effort has been done to understand the mechanisms of inflammaging in disease models such as type II diabetes, cardiovascular disease, Alzheimer's disease, Parkinson's disease, and others. However, despite being the most prevalent neurodegenerative disorder, the number one communication disorder, and one of the top three chronic medical conditions of our aged population; little research has been conducted on the potential role of inflammation in age-related hearing loss (ARHL)...
November 2017: Ageing Research Reviews
https://www.readbyqxmd.com/read/28991644/inflammaging-and-the-lung
#8
REVIEW
Elizabeth J Kovacs, Devin M Boe, Lisbeth A Boule, Brenda J Curtis
With the coming of the "silver tsunami," expanding the knowledge about how various intrinsic and extrinsic factors affect the immune system in the elderly is timely and of immediate clinical need. The global population is increasing in age. By the year 2030, more than 20% of the population of the United States will be older than 65 years of age. This article focuses on how advanced age alters the immune systems and how this, in turn, modulates the ability of the aging lung to deal with infectious challenges from the outside world and from within the host...
November 2017: Clinics in Geriatric Medicine
https://www.readbyqxmd.com/read/28952200/tocotrienol-rich-fraction-attenuates-uv-induced-inflammaging-a-bench-to-bedside-study
#9
Wei Ney Yap
BACKGROUND: UV radiation from the sun is the most common environmental stressor to damage the skin. It is now well established that photodamaged skin manifests signs of mild but chronic inflammation, termed as "inflammaging." Thus, there is an urgent need for anti-inflammatory regimes that can limit the damage caused by inflammation. OBJECTIVES: This study aimed to evaluate the possible palliative effects of a new topical nanoemulsion formulation containing tocotrienol-rich fraction (TRF) on UV-induced inflammation (erythema) of human skin...
September 26, 2017: Journal of Cosmetic Dermatology
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
#10
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...
December 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
#11
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 characterized 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 defense, 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
#12
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
#13
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...
October 2017: Public Health Nutrition
https://www.readbyqxmd.com/read/28808241/specific-calpain-inhibition-protects-kidney-against-inflammaging
#14
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
#15
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
#16
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...
October 2017: Progress in Neurobiology
https://www.readbyqxmd.com/read/28768292/assessing-inflammageing
#17
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
#18
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...
2017: Gerontology
https://www.readbyqxmd.com/read/28704219/inflammaging-and-the-age-specific-responsiveness-to-stretch-shortening-contractions
#19
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
#20
REVIEW
Jeroen P Kooman, Marijke J Dekker, Len A Usvyat, Peter Kotanko, Frank M van der Sande, Casper G Schalkwijk, Paul G Shiels, Peter Stenvinkel
Systemic inflammation in end-stage renal disease 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 a direct effect on cellular and tissue function...
October 1, 2017: American Journal of Physiology. Renal Physiology
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