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https://www.readbyqxmd.com/read/28536426/toll-like-receptor-4-mediates-lewis-lung-carcinoma-induced-muscle-wasting-via-coordinate-activation-of-protein-degradation-pathways
#1
Guohua Zhang, Zhelong Liu, Hui Ding, Hongyu Miao, Jose M Garcia, Yi-Ping Li
Cancer-induced cachexia, characterized by muscle wasting, is a lethal metabolic syndrome with undefined etiology. Current consensus is that multiple factors contribute to cancer-induced muscle wasting, and therefore therapy requires combinational strategies. Here, we show that Toll-like receptor 4 (TLR4) mediates cancer-induced muscle wasting by directly activating muscle catabolism as well as stimulating an innate immune response in mice bearing Lewis lung carcinoma (LLC), and targeting TLR4 alone effectively abrogate muscle wasting...
May 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28529552/cancer-induced-muscle-wasting-latest-findings-in-prevention-and-treatment
#2
REVIEW
Zaira Aversa, Paola Costelli, Maurizio Muscaritoli
Cancer cachexia is a severe and disabling clinical condition that frequently accompanies the development of many types of cancer. Muscle wasting is the hallmark of cancer cachexia and is associated with serious clinical consequences such as physical impairment, poor quality of life, reduced tolerance to treatments and shorter survival. Cancer cachexia may evolve through different stages of clinical relevance, namely pre-cachexia, cachexia and refractory cachexia. Given its detrimental clinical consequences, it appears mandatory to prevent and/or delay the progression of cancer cachexia to its refractory stage by implementing the early recognition and treatment of the nutritional and metabolic alterations occurring during cancer...
May 2017: Therapeutic Advances in Medical Oncology
https://www.readbyqxmd.com/read/28529141/z-505-hydrochloride-an-orally-active-ghrelin-agonist-attenuates-the-progression-of-cancer-cachexia-via-anabolic-hormones-in-colon-26-tumor-bearing-mice
#3
Makoto Yoshimura, Yoshihiro Shiomi, Yuta Ohira, Mineo Takei, Takao Tanaka
Cancer cachexia is a progressive wasting syndrome characterized by anorexia and weight loss, specifically muscle wasting and fat depletion. There is no therapeutic agent for treatment of this syndrome. We investigated the anti-cachexia effects of Z-505 hydrochloride (Z-505), a new oral growth hormone secretagogue receptor 1a (GHSR1a) agonist, using a mouse model of cancer cachexia. We performed a calcium flux assay in Chinese hamster ovary (CHO-K1) cells stably expressing human GHSR1a to quantify the agonistic activity of Z-505...
May 18, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28528336/racial-and-ethnic-differences-in-mortality-associated-with-serum-potassium-in-a-large-hemodialysis-cohort
#4
Taehee Kim, Connie M Rhee, Elani Streja, Melissa Soohoo, Yoshitsugu Obi, Jason A Chou, Amanda R Tortorici, Vanessa A Ravel, Csaba P Kovesdy, Kamyar Kalantar-Zadeh
BACKGROUND: Hyperkalemia is observed in chronic kidney disease patients and may be a risk factor for life-threatening arrhythmias and death. Race/ethnicity may be important modifiers of the potassium-mortality relationship in maintenance hemodialysis (MHD) patients given that potassium intake and excretion vary among minorities. METHODS: We examined racial/ethnic differences in baseline serum potassium levels and all-cause and cardiovascular mortality using Cox proportional hazard models and restricted cubic splines in a cohort of 102,241 incident MHD patients...
May 20, 2017: American Journal of Nephrology
https://www.readbyqxmd.com/read/28524706/cachexia-stage-patient-generated-subjective-global-assessment-phase-angle-and-handgrip-strength-in-patients-with-gastrointestinal-cancer
#5
Gislaine Aparecida Ozorio, Katia Barão, Nora Manoukian Forones
The aim of this study was to correlate patients with gastrointestinal cancer, classified according to different stages of cancer cachexia (SCC) as proposed by Fearon, with nutritional assessment tools such as PG-SGA, phase angle (PA), and handgrip strength. One hundred one patients with a mean age of 61.8 ± 12.8 yr, with 58.4% being men were included. 32.6% were malnourished according to the body mass index (BMI). A severe or moderate malnutrition had been diagnosed in 63.3% when assessed using the PG-SGA, 60...
May 19, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28523512/reduced-adipogenesis-after-lung-tumor-exosomes-priming-in-human-mesenchymal-stem-cells-via-tgf%C3%AE-signaling-pathway
#6
Shihua Wang, Xiaoxia Li, Meiqian Xu, Jing Wang, Robert Chunhua Zhao
A key feature of cancer cachexia is the loss of adipose tissue, mainly due to increased lipolysis and an impairment of adipogenesis. Recent findings have shown that cancer exosomes promoted lipolysis in adipose tissue. However, effects of cancer exosomes on adipogenesis were not reported. In this study, we found that lung cancer exosomes could be internalized by human adipose tissue-derived mesenchymal stem cells (hAD-MSCs) and significantly inhibited hAD-MSC adipogenesis as demonstrated by Oil Red O staining and decreased expression of adipogenic-specific genes...
May 18, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28520694/metabolic-inflammatory-complex-in-sepsis-septic-cachexia-as-a-novel-potential-therapeutic-target
#7
Masao Kaneki
Despite several decades of focused investigation, sepsis remains a major cause of mortality in critically ill patients. Advancements in intensive care have enabled more patients to survive the acute phase of sepsis than previously, but a growing number of them progress to chronic critical illness. The failure of previous randomized clinical trials of anti-inflammatory agents to show any pro-survival benefit in septic patients underscores current thought that simple anti-inflammatory strategies are ineffective because the inhibitory effect of anti-inflammatory agents undermines the immune response to pathogens...
May 17, 2017: Shock
https://www.readbyqxmd.com/read/28515477/cancer-cachexia-associates-with-a-systemic-autophagy-inducing-activity-mimicked-by-cancer-cell-derived-il-6-trans-signaling
#8
Kristine Pettersen, Sonja Andersen, Simone Degen, Valentina Tadini, Joël Grosjean, Shinji Hatakeyama, Almaz N Tesfahun, Siver Moestue, Jana Kim, Unni Nonstad, Pål R Romundstad, Frank Skorpen, Sveinung Sørhaug, Tore Amundsen, Bjørn H Grønberg, Florian Strasser, Nathan Stephens, Dag Hoem, Anders Molven, Stein Kaasa, Kenneth Fearon, Carsten Jacobi, Geir Bjørkøy
The majority of cancer patients with advanced disease experience weight loss, including loss of lean body mass. Severe weight loss is characteristic for cancer cachexia, a condition that significantly impairs functional status and survival. The underlying causes of cachexia are incompletely understood, and currently no therapeutic approach can completely reverse the condition. Autophagy coordinates lysosomal destruction of cytosolic constituents and is systemically induced by starvation. We hypothesized that starvation-mimicking signaling compounds secreted from tumor cells may cause a systemic acceleration of autophagy during cachexia...
May 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28514740/differential-expression-of-circulating-biomarkers-of-tumor-phenotype-and-outcomes-in-previously-treated-non-small-cell-lung-cancer-patients-receiving-erlotinib-vs-cytotoxic-chemotherapy
#9
Mary Jo Fidler, Casey Frankenberger, Richard Seto, Gabriela C Lobato, Cristina L Fhied, Selina Sayidine, Sanjib Basu, Mark Pool, Reem Karmali, Marta Batus, Wen-Rong Lie, David Hayes, Jehangir Mistry, Philip Bonomi, Jeffrey A Borgia
BACKGROUND: The objective of this study was to identify serum biomarkers capable of predicting clinical outcomes in previously-treated NSCLC patients with wild-type for EGFR activating mutations or insufficient tissue for mutation status determination. METHODS: Sixty-six Luminex immunoassays representative of biological themes that emerged from a re-analysis of transcriptome data from the Cancer Genome Atlas (TCGA) were evaluate against pretreatment serum specimens from previously-treated advanced NSCLC patients received either cytotoxic chemotherapy (n=32) or erlotinib (n=79)...
April 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28508131/muscle-wasting-in-chronic-kidney-disease
#10
Eduardo A Oliveira, Wai W Cheung, Kalodiah G Toma, Robert H Mak
Loss of lean body mass is a relevant component of the cachexia, or protein energy wasting (PEW), syndrome. Reduced muscle mass seems to be the most solid criterion for the presence of cachexia/PEW in patients with chronic kidney disease (CKD), and those with greater muscle mass loss have a higher risk of death. Children with CKD have many risk factors for lean mass and muscle wasting, including poor appetite, inflammation, growth hormone resistance, and metabolic acidosis. Mortality risks in patients with CKD increases as body mass index (BMI) and weight decreases...
May 15, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28503759/evaluation-of-weight-change-during-carboplatin-therapy-in-dogs-with-appendicular-osteosarcoma
#11
A L Story, S E Boston, J J Kilkenny, A Singh, J P Woods, W T N Culp, K A Skorupski, X Lu
BACKGROUND: The prevalence of cancer cachexia in veterinary medicine has not been studied widely, and as of yet, no definitive diagnostic criteria effectively assess this syndrome in veterinary patients. OBJECTIVES: (1) To determine the patterns of weight change in dogs with appendicular osteosarcoma treated with amputation and single-agent carboplatin during the course of adjuvant chemotherapy; and (2) to determine whether postoperative weight change is a negative prognostic indicator for survival time in dogs with osteosarcoma...
May 15, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28494385/l-leucine-dietary-supplementation-modulates-muscle-protein-degradation-and-increases-pro-inflammatory-cytokines-in-tumour-bearing-rats
#12
Bread Cruz, André Oliveira, Maria Cristina Cintra Gomes-Marcondes
Cancer cachexia is characterised by involuntary weight loss associated with systemic inflammation and metabolic changes. Studies aimed at maintaining lean body mass in cachectic tumour-bearing hosts have made important contributions reducing the number of deaths and improving the quality of life. In recent years, leucine has demonstrated effective action in maintaining lean body mass by decreasing muscle protein degradation. Currently, there is a growing need to understand how leucine stimulates protein synthesis and acts protectively in a cachectic organism...
May 8, 2017: Cytokine
https://www.readbyqxmd.com/read/28493406/beta-hydroxy-beta-methylbutyrate-supplementation-and-skeletal-muscle-in-healthy-and-muscle-wasting-conditions
#13
REVIEW
Milan Holeček
Beta-hydroxy-beta-methylbutyrate (HMB) is a metabolite of the essential amino acid leucine that has been reported to have anabolic effects on protein metabolism. The aims of this article were to summarize the results of studies of the effects of HMB on skeletal muscle and to examine the evidence for the rationale to use HMB as a nutritional supplement to exert beneficial effects on muscle mass and function in various conditions of health and disease. The data presented here indicate that the beneficial effects of HMB have been well characterized in strength-power and endurance exercise...
May 10, 2017: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/28489606/pantoprazole-blocks-the-jak2-stat3-pathway-to-alleviate-skeletal-muscle-wasting-in-cancer-cachexia-by-inhibiting-inflammatory-response
#14
Dunwei Guo, Chaoyi Wang, Qiang Wang, Zhongpeng Qiao, Hua Tang
OBJECTIVE: Cancer cachexia is often present in patients with advanced malignant tumors, and the subsequent body weight reduction results in poor quality of life. However, there has been no progress in developing effective clinical therapeutic strategies for skeletal muscle wasting in cancer cachexia. Herein, we explored the functions of pantoprazole on cancer cachexia skeletal muscle wasting. METHODS: The mouse colon adenocarcinoma cell line C26 was inoculated in the right forelimb of male BALB/C mice to establish a cancer cachexia model...
April 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28488343/master-and-commander-foxo-s-role-in-muscle-atrophy
#15
H T Langer
Skeletal muscle atrophy is a primary clinical symptom associated with many diseases such as cachexia, sarcopenia, diabetes, neurodegenerative disorders and myopathies. This article is protected by copyright. All rights reserved.
May 10, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28476910/the-immune-phenotype-of-three-drosophila-leukemia-models
#16
Badrul Arefin, Martin Kunc, Robert Krautz, Ulrich Theopold
Many leukemia patients suffer from dysregulation of their immune system, making them more susceptible to infections and leading to general weakening (cachexia). Both adaptive and innate immunity are affected. The fruitfly Drosophila melanogaster has an innate immune system including cells of the myeloid lineage (hemocytes). To study Drosophila immunity and physiology during leukemia we established three models by driving expression of a dominant-active version of the Ras oncogene (Ras(V12) ) alone or combined with knockdowns of tumor suppressors in Drosophila hemocytes...
May 5, 2017: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/28476513/animal-models-of-cachexia-and-sarcopenia-in-chronic-illness-cardiac-function-body-composition-changes-and-therapeutic-results
#17
REVIEW
Junichi Ishida, Masakazu Saitoh, Wolfram Doehner, Stephan von Haehling, Markus Anker, Stefan D Anker, Jochen Springer
Cachexia is defined as a complex metabolic syndrome associated with underlying illness that is characterized by the loss of body weight consisting of muscle and fat mass wasting. Sarcopenia is defined as the ageing related loss of muscle mass in health and disease that may not have an effect on body weight. As millions of patients are in cachectic or sarcopenic states, both conditions contribute to high numbers to death worldwide. A number of treatments have been proposed for cachexia and sarcopenia, but these are either in the preclinical stage or in clinical trials and hence not available to the general population...
April 2, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28475846/resistance-exercise-attenuates-skeletal-muscle-oxidative-stress-systemic-pro-inflammatory-state-and-cachexia-in-walker-256-tumor-bearing-rats
#18
Camila Souza Padilha, Fernando H Borges, Lilian Eslaine Costa Mendes da Silva, Fernando Tadeu Trevisan Frajacomo, Alceu Afonso Jordao, José Alberto Duarte, Rubens Cecchini, Flávia Alessandra Guarnier, Rafael Deminice
The aim of this study was to investigate the effects of resistance exercise training (RET) on oxidative stress, systemic inflammatory markers and muscle wasting in Walker-256 tumor-bearing rats. Male (Wistar) rats were divided into 4 groups: sedentary controls (n=9); tumor-bearing (n=9); exercised (n=9); and tumor-bearing exercised (n=10). Exercised and tumor-bearing exercised rats were exposed to resistance exercise of climbing a ladder apparatus with weights tied to their tails during 6-wks. The physical activity of control and tumor-bearing rats was confined to the space of the cage...
May 5, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28475119/oral-treatment-with-the-ghrelin-receptor-agonist-hm01-attenuates-cachexia-in-mice-bearing-colon-26-c26-tumors
#19
Fabienne O Villars, Claudio Pietra, Claudio Giuliano, Thomas A Lutz, Thomas Riediger
The gastrointestinal hormone ghrelin reduces energy expenditure and stimulates food intake. Ghrelin analogs are a possible treatment against cancer anorexia-cachexia syndrome (CACS). This study aimed to investigate whether oral treatment with the non-peptidergic ghrelin receptor agonist HM01 counteracts CACS in colon-26 (C26) tumor-bearing mice. The C26 tumor model is characterized by pronounced body weight (BW) loss and muscle wasting in the absence of severe anorexia. We analyzed the time course of BW loss, body composition, muscle mass, bone mineral density, and the cytokines interleukin-6 (IL-6) and macrophage-inhibitory cytokine-1 (MIC-1)...
May 5, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28473919/an-unusual-case-of-disseminated-intravascular-coagulation
#20
Dmitri Pchejetski, Mojiba Kenbaz, Heba Alshaker, Dharmesh Rajput, Kiruparajan Jesudason
The use of cardiac pacemakers is increasing worldwide. Infective endocarditis from a pacemaker lead is a rare, but one of the most severe complications of pacemaker insertion. The diagnosis of pacemaker-related infective endocarditis is usually delayed due to unspecific clinical signs and symptoms at presentation compared to native valve infective endocarditis. Several factors can increase the risk of cardiac pacemaker-related infective endocarditis including cachexia, malignancy, diabetes mellitus, immunosuppression and corticosteroid treatment...
April 2017: Oxford Medical Case Reports
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