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Immune metabolism

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https://www.readbyqxmd.com/read/28107775/beta-caryophyllene-protects-against-alcoholic-steatohepatitis-by-attenuating-inflammation-and-metabolic-dysregulation-in-mice
#1
Zoltan V Varga, Csaba Matyas, Katalin Erdelyi, Resat Cinar, Daniela Nieri, Andrea Chicca, Balazs Tamas Nemeth, Janos Paloczi, Tamas Lajtos, Lukas Corey, Gyorgy Hasko, Bin Gao, George Kunos, Jürg Gertsch, Pal Pacher
BACKGROUND AND AIMS: Beta-caryophyllene (BCP) is a plant-derived FDA approved food additive with anti-inflammatory properties. Some of its beneficial effects in vivo reported to involve activation of cannabinoid 2 receptors (CB2) that are predominantly expressed in immune cells. Herein, we evaluated the translational potential of BCP using a well-established model of chronic and binge alcohol-induced liver injury. METHODS: In this study we investigated the effects of BCP on liver injury induced by chronic plus binge alcohol feeding in mice in vivo by using biochemical assays, real-time PCR and histology analyses...
January 20, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28107669/medical-comorbidity-in-bipolar-disorder-the-link-with-metabolic-inflammatory-systems
#2
REVIEW
Ana SayuriYamagata, Elisa Brietzke, Joshua D Rosenblat, Ron Kakar, Roger S McIntyre
BACKGROUND: Bipolar disorder (BD) is associated with chronic low-grade inflammation, several medical comorbidities and a decreased life expectancy. Metabolic-inflammatory changes have been postulated as one of the main links between BD and medical comorbidity, although there are few studies exploring possible mechanisms underlying this relationship. Therefore, the aims of the current narrative review were 1) synthesize the evidence for metabolic-inflammatory changes that may facilitate the link between medical comorbidity and BD and 2) discuss therapeutic and preventive implications of these pathways...
January 4, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28105862/structural-data-and-immunomodulatory-properties-of-a-water-soluble-heteroglycan-extracted-from-the-mycelium-of-an-italian-isolate-of-ganoderma-lucidum
#3
Raffaele Carrieri, Rosanna Manco, Daniela Sapio, Marco Iannaccone, Andrea Fulgione, Marina Papaianni, Bruna de Falco, Laura Grauso, Paola Tarantino, Flora Ianniello, Virginia Lanzotti, Ernesto Lahoz, Rosanna Capparelli
Mushrooms produce a wide range of bioactive polysaccharides, different from each other in chemical structure and biological effects. In the last years, the idea to develop functional foods or drugs containing fungal polysaccharides is attracting great attention. Fruiting bodies of Basidiomycetes Ganoderma lucidum are commonly used in Oriental medicine to treat several disorders. G. lucidum polysaccharides - mainly β-glucans and heteroglycans - have numerous biological properties such as antitumour and immunomodulatory activities...
January 20, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28105719/allostatic-load-and-biological-anthropology
#4
Ashley N Edes, Douglas E Crews
Multiple stressors affect developing and adult organisms, thereby partly structuring their phenotypes. Determining how stressors influence health, well-being, and longevity in human and nonhuman primate populations are major foci within biological anthropology. Although much effort has been devoted to examining responses to multiple environmental and sociocultural stressors, no holistic metric to measure stress-related physiological dysfunction has been widely applied within biological anthropology. Researchers from disciplines outside anthropology are using allostatic load indices (ALIs) to estimate such dysregulation and examine life-long outcomes of stressor exposures, including morbidity and mortality...
January 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28105145/stem-cell-transplantation-during-cancer
#5
Xiao-Ying Zhang, Pei-Ying Zhang
Hematological malignancies account for approximately 9.5% of new cancers diagnosed annually. Lymphoma is the most frequent of all known categories of hematological malignancies. Worldwide, extensive research has focused on this type of cancer. However, new treatments are investigated in various clinical as well as pre-clinical studies. Hematopoietic stem cell transplantation (HSCT) is a recent and upcoming treatment strategy for patients with hematopoietic malignancies and inborn errors of metabolism or immune deficiencies...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28104913/exosome-derived-micrornas-in-cancer-metabolism-possible-implications-in-cancer-diagnostics-and-therapy
#6
REVIEW
Marco Tomasetti, Wan Lee, Lory Santarelli, Jiri Neuzil
Malignant progression is greatly affected by dynamic cross-talk between stromal and cancer cells. Exosomes are secreted nanovesicles that have key roles in cell-cell communication by transferring nucleic acids and proteins to target cells and tissues. Recently, MicroRNAs (miRs) and their delivery in exosomes have been implicated in physiological and pathological processes. Tumor-delivered miRs, interacting with stromal cells in the tumor microenvironment, modulate tumor progression, angiogenesis, metastasis and immune escape...
January 20, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/28104528/cannabinoid-receptor-type-2-cb2-as-one-of-the-candidate-genes-in-human-carotid-plaque-imaging-evalu1ation-of-the-novel-radiotracer-11-c-rs-016-targeting-cb2-in-atherosclerosis
#7
Romana Meletta, Roger Slavik, Linjing Mu, Zoran Rancic, Nicole Borel, Roger Schibli, Simon M Ametamey, Stefanie D Krämer, Adrienne Müller Herde
INTRODUCTION: Endarterectomized human atherosclerotic plaques are a valuable basis for gene expression studies to disclose novel imaging biomarkers and therapeutic targets, such as the cannabinoid receptor type 2 (CB2). In this work, CB2 is expressed on activated immune cells, which are abundant in inflamed plaques. We evaluated the CB2-specific radiotracer [(11)C]RS-016 for imaging vascular inflammation in human and mouse atherosclerotic lesions. METHODS: The differential gene expression of microscopically classified human carotid plaques was evaluated using quantitative polymerase chain reaction...
January 8, 2017: Nuclear Medicine and Biology
https://www.readbyqxmd.com/read/28101146/bone-health-in-hiv-and-hepatitis-b-or-c-infections
#8
REVIEW
Emmanuel Biver, Alexandra Calmy, René Rizzoli
Chronic infections with human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV) add to age-dependent bone loss and may contribute to lower bone strength in the elderly. In this review, we report recent highlights on the epidemiology of bone fragility in chronic viral infections with HIV, HCV and HBV, its physiopathology and discuss the interference of antiviral therapies with bone metabolism. Chronic infections influence bone through the interactions between risk factors for bone fragility and falls (which are highly prevalent in infected patients), virus activity and antiviral drugs...
January 2017: Therapeutic Advances in Musculoskeletal Disease
https://www.readbyqxmd.com/read/28100790/genome-wide-analysis-in-brazilians-reveals-highly-differentiated-native-american-genome-regions
#9
Josyf C Mychaleckyj, Alexandre Havt, Uma Nayak, Relana Pinkerton, Emily Farber, Patrick Concannon, Aldo A Lima, Richard L Guerrant
Despite its population, geographic size, and emerging economic importance, disproportionately little genome-scale research exists into genetic factors that predispose Brazilians to disease, or the population genetics of risk. After identification of suitable proxy populations and careful analysis of tri-continental admixture in 1,538 North-Eastern Brazilians to estimate individual ancestry and ancestral allele frequencies, we computed 400,000 genome-wide locus-specific branch length (LSBL) Fst statistics of Brazilian Amerindian ancestry compared to European and African; and a similar set of differentiation statistics for their Amerindian component compared to the closest Asian 1000 Genomes population (surprisingly, Bengalis in Bangladesh)...
January 18, 2017: Molecular Biology and Evolution
https://www.readbyqxmd.com/read/28099803/deep-learning-to-predict-the-formation-of-quinone-species-in-drug-metabolism
#10
Tyler B Hughes, S Joshua Swamidass
Many adverse drug reactions are thought to be caused by electrophilically reactive drug metabolites that conjugate to nucleophilic sites within DNA and proteins, causing cancer or toxic immune responses. Quinone species, including quinone-imines, quinone-methides, and imine-methides, are electrophilic Michael acceptors that are of- ten highly reactive, and comprise over 40% of all known reactive metabolites. Quinone metabolites are created by cytochromes P450 and peroxidases. For example, cy- tochromes P450 oxidize acetaminophen to N-acetyl-p-benzoquinone imine, which is electrophilically reactive and covalently binds to nucleophilic sites within proteins...
January 18, 2017: Chemical Research in Toxicology
https://www.readbyqxmd.com/read/28099780/the-genetic-architecture-of-defense-as-resistance-to-and-tolerance-of-bacterial-infection-in-drosophila-melanogaster
#11
Virginia M Howick, Brian P Lazzaro
Defense against pathogenic infection can take two forms: resistance and tolerance. Resistance is the ability of the host to limit a pathogen burden, whereas tolerance is the ability to limit the negative consequences of infection at a given level of infection intensity. Evolutionarily, a tolerance strategy that is independent of resistance could allow the host to avoid mounting a costly immune response and, theoretically, to avoid a coevolutionary arms race between pathogen virulence and host resistance. Biomedically, understanding the mechanisms of tolerance and how they relate to resistance could potentially yield treatment strategies that focus on health improvement instead of pathogen elimination...
January 18, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28099107/case-238-spontaneous-pneumothorax-secondary-to-intrapulmonary-necrobiotic-rheumatoid-nodule
#12
Ammar A Chaudhry, Maryam Gul, Abbas A Chaudhry, William Moore
History A 54-year-old white woman with a history of rheumatoid arthritis who was taking glucocorticoids and methotrexate presented to the emergency department in December with worsening shortness of breath and chest heaviness for 1 week. She reported additional symptoms of weakness, headache, and arthralgia primarily involving her bilateral hands, wrist, ankles, and feet. She denied experiencing fevers, syncope or presyncope, focal neurologic deficits, chest pain, nausea, vomiting, unintentional weight loss, or recent trauma...
February 2017: Radiology
https://www.readbyqxmd.com/read/28098913/diets-link-metabolic-syndrome-and-colorectal-cancer-development-review
#13
Jirakrit Saetang, Surasak Sangkhathat
Diets have been believed to be an important factor in the development of metabolic syndrome and colorectal cancer (CRC). In recent years, many studies have shown an intimate relationship between mucosal immunity, metabolism and diets, which has led to a greater understanding of the pathophysiology of metabolic syndrome and CRC development. Although the precise effects of diets on oncogenesis have not been compl-etely elucidated, microbiota changes and inflammation are believed to be important factors that influence the development of CRC...
January 18, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28097424/analysis-of-the-spleen-proteome-of-chickens-infected-with-reticuloendotheliosis-virus
#14
Mei Xue, Yan Zhao, Shunlei Hu, Xingming Shi, Hongyu Cui, Yunfeng Wang
Infection with reticuloendotheliosis virus (REV), a gammaretrovirus in the family Retroviridae, can result in immunosuppression and subsequent increased susceptibility to secondary infections. In the present study, we identified differentially expressed proteins in the spleens of chickens infected with the REV-A HLJ07I strain, using two-dimensional gel electrophoresis on samples from time points coinciding with different phases of the REV life cycle. Differentially expressed proteins were identified using one-dimensional liquid chromatography electrospray ionization tandem mass spectrometry (1D LC ESI MS/MS)...
January 17, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28097092/comparative-interactomics-for-virus-human-protein-protein-interactions-dna-viruses-versus-rna-viruses
#15
Saliha Durmuş, Kutlu Ö Ülgen
Viruses are obligatory intracellular pathogens and completely depend on their hosts for survival and reproduction. The strategies adopted by viruses to exploit host cell processes and to evade host immune systems during infections may differ largely with the type of the viral genetic material. An improved understanding of these viral infection mechanisms is only possible through a better understanding of the pathogen-host interactions (PHIs) that enable viruses to enter into the host cells and manipulate the cellular mechanisms to their own advantage...
January 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/28097080/immunoglobulin-m-nephropathy-in-a-patient-with-wilson-s-disease
#16
Zain Ul Abideen, Zoya Sajjad, Asna Haroon Khan, Nadira Mamoon, Muhammad Bilal, Khaja Hameeduddin Mujtaba Quadri
Immunoglobulin M nephropathy (IgMN) is characterized by the deposition of immunoglobulin M in a dominant distribution in the renal glomeruli. Primary immunoglobulin M nephropathy is diagnosed after consistent light microscopy (LM), immunofluorescence (IF), electron microscopy (EM) results, and exclusion of known systemic disorders causing immunoglobulin M deposition in the glomeruli. The secondary disease has been reported with a few conditions though it has never been reported with any primary disease of the liver...
December 13, 2016: Curēus
https://www.readbyqxmd.com/read/28096698/burkitt-lymphoma-in-adolescents-and-young-adults-management-challenges
#17
REVIEW
Massimo Dozzo, Francesca Carobolante, Pietro Maria Donisi, Annamaria Scattolin, Elena Maino, Rosaria Sancetta, Piera Viero, Renato Bassan
About one-half of all Burkitt lymphoma (BL) patients are younger than 40 years, and one-third belong to the adolescent and young adult (AYA) subset, defined by an age between 15 and 25-40 years, based on selection criteria used in different reports. BL is an aggressive B-cell neoplasm displaying highly characteristic clinico-diagnostic features, the biologic hallmark of which is a translocation involving immunoglobulin and c-MYC genes. It presents as sporadic, endemic, or epidemic disease. Endemicity is pathogenetically linked to an imbalance of the immune system which occurs in African children infected by malaria parasites and Epstein-Barr virus, while the epidemic form strictly follows the pattern of infection by HIV...
2017: Adolescent Health, Medicine and Therapeutics
https://www.readbyqxmd.com/read/28096541/the-mucosal-immune-system-master-regulator-of-bidirectional-gut-brain-communications
#18
REVIEW
Nick Powell, Marjorie M Walker, Nicholas J Talley
Communication between the brain and gut is not one-way, but a bidirectional highway whereby reciprocal signals between the two organ systems are exchanged to coordinate function. The messengers of this complex dialogue include neural, metabolic, endocrine and immune mediators responsive to diverse environmental cues, including nutrients and components of the intestinal microbiota (microbiota-gut-brain axis). We are now starting to understand how perturbation of these systems affects transition between health and disease...
January 18, 2017: Nature Reviews. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28096430/testing-hypotheses-about-individual-variation-in-plasma-corticosterone-in-free-living-salamanders
#19
Jessica R Thomas, Andrew J Magyan, Peter E Freeman, Sarah K Woodley
In vertebrates, many responses to stress as well as homeostatic maintenance of basal metabolism are regulated by plasma glucocorticoid hormones (GCs). Despite having crucial functions, levels of GCs are typically variable among individuals. We examined the contribution of several physiological factors to individual variation in plasma corticosterone (CORT) and the number of corticotropin-releasing hormone (CRH) neurons in the magnocellular preoptic area of the brain in free-living Allegheny Mountain dusky salamanders...
January 17, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28096371/cox2-mpges1-pge2-pathway-regulates-pd-l1-expression-in-tumor-associated-macrophages-and-myeloid-derived-suppressor-cells
#20
Victor Prima, Lyudmila N Kaliberova, Sergey Kaliberov, David T Curiel, Sergei Kusmartsev
In recent years, it has been established that programmed cell death protein ligand 1 (PD-L1)-mediated inhibition of activated PD-1(+) T lymphocytes plays a major role in tumor escape from immune system during cancer progression. Lately, the anti-PD-L1 and -PD-1 immune therapies have become an important tool for treatment of advanced human cancers, including bladder cancer. However, the underlying mechanisms of PD-L1 expression in cancer are not fully understood. We found that coculture of murine bone marrow cells with bladder tumor cells promoted strong expression of PD-L1 in bone marrow-derived myeloid cells...
January 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
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