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Inflammaging

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https://www.readbyqxmd.com/read/29782203/extracellular-vesicles-extracted-from-young-donor-serum-attenuate-inflammaging-via-partially-rejuvenating-aged-t-cell-immunotolerance
#1
Weikan Wang, Liefeng Wang, Linhui Ruan, Jiyoung Oh, Xiaowei Dong, Qichuan Zhuge, Dong-Ming Su
Biologic aging results in a chronic inflammatory condition, termed inflammaging, which establishes a risk for such age-related diseases as neurocardiovascular diseases; therefore, it is of great importance to develop rejuvenation strategies that are able to attenuate inflammaging as a means of intervention for age-related diseases. A promising rejuvenation factor that is present in young blood has been found that can make aged neurons younger; however, the component in the young blood and its mechanism of action are poorly elucidated...
May 21, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29742452/anti-senescence-compounds-a-potential-nutraceutical-approach-to-healthy-aging
#2
REVIEW
Felicia Gurău, Simone Baldoni, Francesco Prattichizzo, Emma Espinosa, Francesco Amenta, Antonio Domenico Procopio, Maria Cristina Albertini, Massimiliano Bonafè, Fabiola Olivieri
The desire of eternal youth seems to be as old as mankind. However, the increasing life expectancy experienced by populations in developed countries also involves a significantly increased incidence of the most common age-related diseases (ARDs). Senescent cells (SCs) have been identified as culprits of organismal aging. Their number rises with age and their senescence-associated secretory phenotype fuels the chronic, pro-inflammatory systemic state (inflammaging) that characterizes aging, impairing the regenerative ability of stem cells and increasing the risk of developing ARDs...
May 6, 2018: Ageing Research Reviews
https://www.readbyqxmd.com/read/29740839/ageing-and-inflammation-in-the-male-reproductive-tract
#3
REVIEW
M B Frungieri, R S Calandra, A Bartke, M E Matzkin
Ageing is usually characterised by a mild chronic proinflammatory state. Despite the tight association between both processes, the phenomenon has recently been termed inflammageing. Inflammation in the male reproductive tract is frequently linked with bacterial or virus infections but also with a broad range of noninfectious processes. Prostatitis, epididymitis and orchitis, among others, can lead to infertility. However, in spite of the inflammation theory of disease, chronic inflammation in male urogenital system does not always cause symptoms...
May 8, 2018: Andrologia
https://www.readbyqxmd.com/read/29735019/supplementation-with-eicosapentaenoic-acid-and-docosahexaenoic-acid-reduces-high-levels-of-circulating-proinflammatory-cytokines-in-aging-adults-a-randomized-controlled-study
#4
Alai Tan, Brent Sullenbarger, Ruchika Prakash, Jodi C McDaniel
BACKGROUND: High levels of circulating proinflammatory cytokines are characteristic of inflammaging, a term coined to describe age-related chronic systemic inflammation involved in the etiology of many age-related disorders including nonhealing wounds. Some studies have shown that supplementing diets with n-3 polyunsaturated fatty acids (eicosapentaenoic acid [EPA] and docosahexaenoic acid [DHA]) lowers systemic levels of key proinflammatory cytokines associated with inflammaging. However, findings from the few studies that have focused exclusively on older adults are inconclusive...
May 2018: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/29734698/disparate-habitual-physical-activity-and-dietary-intake-profiles-of-elderly-men-with-low-and-elevated-systemic-inflammation
#5
Dimitrios Draganidis, Athanasios Z Jamurtas, Theodoros Stampoulis, Vasiliki C Laschou, Chariklia K Deli, Kalliopi Georgakouli, Konstantinos Papanikolaou, Athanasios Chatzinikolaou, Maria Michalopoulou, Constantinos Papadopoulos, Panagiotis Tsimeas, Niki Chondrogianni, Yiannis Koutedakis, Leonidas G Karagounis, Ioannis G Fatouros
The development of chronic, low-grade systemic inflammation in the elderly (inflammaging) has been associated with increased incidence of chronic diseases, geriatric syndromes, and functional impairments. The aim of this study was to examine differences in habitual physical activity (PA), dietary intake patterns, and musculoskeletal performance among community-dwelling elderly men with low and elevated systemic inflammation. Nonsarcopenic older men free of chronic diseases were grouped as ‘low’ (LSI: n = 17; 68...
May 4, 2018: Nutrients
https://www.readbyqxmd.com/read/29696779/necroptosis-increases-with-age-and-is-reduced-by-dietary-restriction
#6
Sathyaseelan S Deepa, Archana Unnikrishnan, Stephanie Matyi, Niran Hadad, Arlan Richardson
Necroptosis is a newly identified programmed cell death pathway that is highly proinflammatory due to the release of cellular components that promote inflammation. To determine whether necroptosis might play a role in inflammaging, we studied the effect of age and dietary restriction (DR) on necroptosis in the epididymal white adipose tissue (eWAT), a major source of proinflammatory cytokines. Phosphorylated MLKL and RIPK3, markers of necroptosis, were increased 2.7- and 1.9-fold, respectively, in eWAT of old mice compared to adult mice, and DR reduced P-MLKL and P-RIPK3 to levels similar to adult mice...
April 25, 2018: Aging Cell
https://www.readbyqxmd.com/read/29686666/age-and-age-related-diseases-role-of-inflammation-triggers-and-cytokines
#7
REVIEW
Irene Maeve Rea, David S Gibson, Victoria McGilligan, Susan E McNerlan, H Denis Alexander, Owen A Ross
Cytokine dysregulation is believed to play a key role in the remodeling of the immune system at older age, with evidence pointing to an inability to fine-control systemic inflammation, which seems to be a marker of unsuccessful aging. This reshaping of cytokine expression pattern, with a progressive tendency toward a pro-inflammatory phenotype has been called "inflamm-aging." Despite research there is no clear understanding about the causes of "inflamm-aging" that underpin most major age-related diseases, including atherosclerosis, diabetes, Alzheimer's disease, rheumatoid arthritis, cancer, and aging itself...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29686533/gut-dysbiosis-and-muscle-aging-searching-for-novel-targets-against-sarcopenia
#8
REVIEW
Anna Picca, Francesca Fanelli, Riccardo Calvani, Giuseppina Mulè, Vito Pesce, Alex Sisto, Cecilia Pantanelli, Roberto Bernabei, Francesco Landi, Emanuele Marzetti
Advanced age is characterized by several changes, one of which is the impairment of the homeostasis of intestinal microbiota. These alterations critically influence host health and have been associated with morbidity and mortality in older adults. "Inflammaging," an age-related chronic inflammatory process, is a common trait of several conditions, including sarcopenia. Interestingly, imbalanced intestinal microbial community has been suggested to contribute to inflammaging. Changes in gut microbiota accompanying sarcopenia may be attenuated by supplementation with pre- and probiotics...
2018: Mediators of Inflammation
https://www.readbyqxmd.com/read/29644870/a-novel-polyphenolic-prebiotic-and-probiotic-formulation-have-synergistic-effects-on-the-gut-microbiota-influencing-drosophila-melanogaster-physiology
#9
Susan Westfall, Nikita Lomis, Satya Prakash
The gut microbiota is a vast community of synergistic bacterial species providing health benefits to the host. Imbalances in the gut microbiota (dysbiosis) due to diet, antibiotic use, age and stress contribute to disease development including diabetes, obesity, colon cancer, inflammatory bowel disease, inflammaging and neurodegeneration. Fortunately, a probiotic regime with a diet rich in prebiotics may reverse dysbiosis promoting health and wellness in age. The current study designs, optimizes and tests a novel probiotic and synbiotic formulation consisting of three metabolically active probiotics Lactobacillus plantarum, Lactobacillus fermentum and Bifidobacteria infantis together with a novel polyphenol-rich prebiotic, Triphala...
April 12, 2018: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29595005/-effect-of-inflammaging-on-periodontitis
#10
Wang Qi, Zhou Xinyi, Ding Yi
Inflammaging is the chronic, systematic, and controllable upregulation of a pro-inflammation state with advancing age. Chronic low-grade inflammation accompanied by sustained stimuli is correlated with various age-related diseases (ARDs). Recent studies on ARDs have prompted further research interest in the inner mechanisms underlying inflammaging to establish prevention and treatment plans for inflammatory diseases. In this article, we discuss inflammaging and its significant role in periodontitis.
February 1, 2018: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/29564335/source-of-chronic-inflammation-in-aging
#11
Fumihiro Sanada, Yoshiaki Taniyama, Jun Muratsu, Rei Otsu, Hideo Shimizu, Hiromi Rakugi, Ryuichi Morishita
Aging is a complex process that results from a combination of environmental, genetic, and epigenetic factors. A chronic pro-inflammatory status is a pervasive feature of aging. This chronic low-grade inflammation occurring in the absence of overt infection has been defined as "inflammaging" and represents a significant risk factor for morbidity and mortality in the elderly. The low-grade inflammation persists even after reversing pro-inflammatory stimuli such as LDL cholesterol and the renin-angiotensin system (RAS)...
2018: Frontiers in Cardiovascular Medicine
https://www.readbyqxmd.com/read/29562943/predominant-gut-lactobacillus-murinus-strain-mediates-anti-inflammaging-effects-in-calorie-restricted-mice
#12
Fengwei Pan, Liying Zhang, Min Li, Yingxin Hu, Benhua Zeng, Huijuan Yuan, Liping Zhao, Chenhong Zhang
BACKGROUND: Calorie restriction (CR), which has a potent anti-inflammaging effect, has been demonstrated to induce dramatic changes in the gut microbiota. Whether the modulated gut microbiota contributes to the attenuation of inflammation during CR is unknown, as are the members of the microbial community that may be key mediators of this process. RESULTS: Here, we report that a unique Lactobacillus-predominated microbial community was rapidly attained in mice within 2 weeks of CR, which decreased the levels of circulating microbial antigens and systemic inflammatory markers such as tumour necrosis factor alpha (TNF-α)...
March 21, 2018: Microbiome
https://www.readbyqxmd.com/read/29487742/the-interplay-between-immunity-and-aging-in-drosophila
#13
REVIEW
Kathrin Garschall, Thomas Flatt
Here, we provide a brief review of the mechanistic connections between immunity and aging-a fundamental biological relationship that remains poorly understood-by considering two intertwined questions: how does aging affect immunity, and how does immunity affect aging? On the one hand, aging contributes to the deterioration of immune function and predisposes the organism to infections ("immuno-senescence"). On the other hand, excessive activation of the immune system can accelerate degenerative processes, cause inflammation and immunopathology, and thus promote aging ("inflammaging")...
2018: F1000Research
https://www.readbyqxmd.com/read/29479350/parallels-in-immunometabolic-adipose-tissue-dysfunction-with-ageing-and-obesity
#14
REVIEW
William Trim, James E Turner, Dylan Thompson
Ageing, like obesity, is often associated with alterations in metabolic and inflammatory processes resulting in morbidity from diseases characterised by poor metabolic control, insulin insensitivity, and inflammation. Ageing populations also exhibit a decline in immune competence referred to as immunosenescence, which contributes to, or might be driven by chronic, low-grade inflammation termed "inflammageing". In recent years, animal and human studies have started to uncover a role for immune cells within the stromal fraction of adipose tissue in driving the health complications that come with obesity, but relatively little work has been conducted in the context of immunometabolic adipose function in ageing...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29471104/cellular-senescence-as-a-therapeutic-target-to-improve-renal-transplantation-outcome
#15
REVIEW
Hester van Willigenburg, Peter L J de Keizer, Ron W F de Bruin
Kidney transplants from aged donors are more vulnerable to ischemic injury, suffer more from delayed graft function and have a lower graft survival compared to kidneys from younger donors. On a cellular level, aging results in an increase in cells that are in a permanent cell cycle arrest, termed senescence, which secrete a range of pro-inflammatory cytokines and growth factors. Consequently, these senescent cells negatively influence the local milieu by causing inflammaging, and by reducing the regenerative capacity of the kidney...
April 2018: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/29445452/exploiting-immune-cell-metabolic-machinery-for-functional-hiv-cure-and-the-prevention-of-inflammaging
#16
REVIEW
Clovis S Palmer, Riya Palchaudhuri, Hassan Albargy, Mohamed Abdel-Mohsen, Suzanne M Crowe
An emerging paradigm in immunology suggests that metabolic reprogramming and immune cell activation and functions are intricately linked. Viral infections, such as HIV infection, as well as cancer force immune cells to undergo major metabolic challenges. Cells must divert energy resources in order to mount an effective immune response. However, the fact that immune cells adopt specific metabolic programs to provide host defense against intracellular pathogens and how this metabolic shift impacts immune cell functions and the natural course of diseases have only recently been appreciated...
2018: F1000Research
https://www.readbyqxmd.com/read/29438781/neurobiological-links-between-depression-and-ad-the-role-of-tgf-%C3%AE-1-signaling-as-a-new-pharmacological-target
#17
REVIEW
Filippo Caraci, Simona Federica Spampinato, Maria Grazia Morgese, Fabio Tascedda, Maria Grazia Salluzzo, Maria Concetta Giambirtone, Giuseppe Caruso, Antonio Munafò, Sebastiano Alfio Torrisi, Gian Marco Leggio, Luigia Trabace, Ferdinando Nicoletti, Filippo Drago, Maria Angela Sortino, Agata Copani
In the last several years a large number of studies have demonstrated the neurobiological and clinical continuum between depression and Alzheimer's disease (AD). Depression is a risk factor for the development of AD, and the presence of depressive symptoms significantly increases the conversion of Mild Cognitive Impairment (MCI) into AD. Common pathophysiological events have been identified in depression and AD, including neuroinflammation with an aberrant Tumor Necrosis Factor-α (TNF-α) signaling, and an impairment of Brain-Derived Neurotrophic Factor (BDNF) and Transforming-Growth-Factor-β1 (TGF-β1) signaling...
April 2018: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/29387138/tocotrienol-is-a-cardioprotective-agent-against-ageing-associated-cardiovascular-disease-and-its-associated-morbidities
#18
REVIEW
Nardev Ramanathan, Esther Tan, Li Jun Loh, Boon Seng Soh, Wei Ney Yap
Ageing is a nonmodifiable risk factor that is linked to increased likelihood of cardiovascular morbidities. Whilst many pharmacological interventions currently exist to treat many of these disorders such as statins for hypercholesterolemia or beta-blockers for hypertension, the elderly appear to present a greater likelihood of suffering non-related side effects such as increased risk of developing new onset type 2 diabetes (NODM). In some cases, lower efficacy in the elderly have also been reported. Alternative forms of treatment have been sought to address these issues, and there has been a growing interest in looking at herbal remedies or plant-based natural compounds...
2018: Nutrition & Metabolism
https://www.readbyqxmd.com/read/29387133/ageing-from-inflammation-to-cancer
#19
REVIEW
Giulia C Leonardi, Giulia Accardi, Roberto Monastero, Ferdinando Nicoletti, Massimo Libra
Ageing is the major risk factor for cancer development. Hallmark of the ageing process is represented by inflammaging, which is a chronic and systemic low-grade inflammatory process. Inflammation is also a hallmark of cancer and is widely recognized to influence all cancer stages from cell transformation to metastasis. Therefore, inflammaging may represent the biological phenomena able to couple ageing process with cancer development. Here we review the molecular and cellular pathway involved in age-related chronic inflammation along with its potential triggers and their connection with cancer development...
2018: Immunity & Ageing: I & A
https://www.readbyqxmd.com/read/29259496/immunosenescence-in-aging-between-immune-cells-depletion-and-cytokines-up-regulation
#20
REVIEW
Maria Teresa Ventura, Marco Casciaro, Sebastiano Gangemi, Rosalba Buquicchio
Background: The immunosenescence is a relatively recent chapter, correlated with the linear extension of the average life began in the nineteenth century and still in progress. The most important feature of immunosenescence is the accumulation in the "immunological space" of memory and effector cells as a result of the stimulation caused by repeated clinical and subclinical infections and by continuous exposure to antigens (inhalant allergens, food, etc.). This state of chronic inflammation that characterizes senescence has a significant impact on survival and fragility...
2017: Clinical and Molecular Allergy: CMA
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