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Myosteatosis

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https://www.readbyqxmd.com/read/29658780/inter-and-intraobserver-variability-of-an-anatomical-landmark-based-manual-segmentation-method-by-mri-for-the-assessment-of-skeletal-muscle-fat-content-and-area-in-subjects-from-the-general-population
#1
Lena Sophie Kiefer, Jana Fabian, Roberto Lorbeer, Jürgen Machann, Corinna Storz, Mareen Sarah Kraus, Elke Wintermeyer, Christopher L Schlett, Frank Roemer, Konstantin Nikolaou, Annette Peters, Fabian Bamberg
OBJECTIVES: Changes in skeletal muscle composition, such as fat content and mass, may exert unique metabolic and musculoskeletal risks; however, the reproducibility of their assessment is unknown. We determined the variability of the assessment of skeletal muscle fat content and area by magnetic resonance imaging (MRI) in a population-based sample. METHODS: A random sample from a prospective, community-based cohort study (KORA-FF4) was included. Skeletal muscle fat content was quantified as proton-density fat-fraction (PDFF) and area as cross-sectional area (CSA) in multi-echo Dixon sequences (TR 8...
April 16, 2018: British Journal of Radiology
https://www.readbyqxmd.com/read/29519644/myosteatosis-predicts-survival-after-surgery-for-periampullary-cancer-a-novel-method-using-mri
#2
David P J van Dijk, Frans C H Bakers, Sebastian Sanduleanu, Rianne D W Vaes, Sander S Rensen, Cornelis H C Dejong, Regina G H Beets-Tan, Steven W M Olde Damink
BACKGROUND: Myosteatosis, characterized by inter- and intramyocellular fat deposition, is strongly related to poor overall survival after surgery for periampullary cancer. It is commonly assessed by calculating the muscle radiation attenuation on computed tomography (CT) scans. However, since magnetic resonance imaging (MRI) is replacing CT in routine diagnostic work-up, developing methods based on MRI is important. We developed a new method using MRI-muscle signal intensity to assess myosteatosis and compared it with CT-muscle radiation attenuation...
March 5, 2018: HPB: the Official Journal of the International Hepato Pancreato Biliary Association
https://www.readbyqxmd.com/read/29488190/barriers-to-the-interpretation-of-body-composition-in-colorectal-cancer-a-review-of-the-methodological-inconsistency-and-complexity-of-the-ct-defined-body-habitus
#3
REVIEW
Jessica J Hopkins, Daniel Skubleny, David L Bigam, Vickie E Baracos, Dean T Eurich, Michael B Sawyer
BACKGROUND: Measurement of body composition by computed tomography (CT) is an advancing field. Sarcopenia, myosteatosis, and visceral obesity (VO) have been identified as predictive of survival in colorectal cancer (CRC). We performed a systematic review of contemporary studies to characterize this association and highlight methodological inconsistencies. METHODS: MEDLINE and PubMed were queried for articles published from January 2000 on, with populations of resectable CRC and with CT-measured body composition and survival data...
February 27, 2018: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29486094/impact-of-myosteatosis-on-skeletal-muscle-volume-loss-in-patients-with-chronic-liver-disease
#4
Yoshihiko Tachi, Akihiro Kozuka, Takanori Hirai, Yoji Ishizu, Takashi Honda, Teiji Kuzuya, Kazuhiko Hayashi, Masatoshi Ishigami, Hidemi Goto
BACKGROUND AND AIM: Severe muscle volume loss is a recognized negative prognostic factor in patients with chronic liver disease. However, the effect of skeletal muscle fat deposition, referred to as myosteatosis on muscle volume loss remains unclear. The aim of this study was to investigate the relationships between myosteatosis and skeletal muscle volume loss. METHODS: We enrolled 362 patients with chronic liver disease (186 men, 176 women; mean age 68.4 ± 10...
February 27, 2018: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29377869/impact-of-low-muscularity-and-myosteatosis-on-long-term-outcome-after-curative-colorectal-cancer-surgery-a-propensity-score-matched-analysis
#5
Toshinori Sueda, Hidekazu Takahasi, Junichi Nishimura, Taishi Hata, Chu Matsuda, Tsunekazu Mizushima, Yuichiro Doki, Masaki Mori
BACKGROUND: Muscle loss, characterized by reduced muscle mass (myopenia), and infiltration by intermuscular and intramuscular fat (myosteatosis), predicts a poor short-term prognosis in patients with colorectal cancer. However, little is known about the influence of myopenia and myosteatosis on long-term outcomes. OBJECTIVE: The present study aimed to evaluate the prognostic influence of both myopenia and myosteatosis on long-term outcomes after curative colorectal cancer surgery...
March 2018: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/29342166/effects-of-vitamin-d-on-insulin-resistance-and-myosteatosis-in-diet-induced-obese-mice
#6
Elisa Benetti, Raffaella Mastrocola, Fausto Chiazza, Debora Nigro, Giuseppe D'Antona, Valentina Bordano, Roberto Fantozzi, Manuela Aragno, Massimo Collino, Marco Alessandro Minetto
Epidemiological studies pointed out to a strong association between vitamin D deficiency and type 2 diabetes prevalence. However, the role of vitamin D supplementation in the skeletal muscle, a tissue that play a crucial role in the maintenance of glucose homeostasis, has been scarcely investigated so far. On this basis, this study aimed to evaluate the effect of vitamin D supplementation in a murine model of diet-induced insulin resistance with particular attention to the effects evoked on the skeletal muscle...
2018: PloS One
https://www.readbyqxmd.com/read/29139618/beyond-sarcopenia-characterization-and-integration-of-skeletal-muscle-quantity-and-radiodensity-in-a-curable-breast-cancer-population
#7
Marc S Weinberg, Shlomit S Shachar, Hyman B Muss, Allison M Deal, Karteek Popuri, Hyeon Yu, Kirsten A Nyrop, Shani M Alston, Grant R Williams
Skeletal muscle loss, commonly known as sarcopenia, is highly prevalent and prognostic of adverse outcomes in oncology. However, there is limited information on adults with early breast cancer and examination of other skeletal muscle indices, despite the potential prognostic importance. This study characterizes and examines age-related changes in body composition of adults with early breast cancer and describes the creation of a novel integrated muscle measure. Female patients diagnosed with stage I-III breast cancer with abdominal computerized tomography (CT) scans within 12 weeks from diagnosis were identified from local tumor registry (N = 241)...
November 15, 2017: Breast Journal
https://www.readbyqxmd.com/read/28832677/fish-oil-mitigates-myosteatosis-and-improves-chemotherapy-efficacy-in-a-preclinical-model-of-colon-cancer
#8
Alaa A Almasud, Kaitlin H Giles, John J Miklavcic, Karen J B Martins, Vickie E Baracos, Charles T Putman, Leluo L Guan, Vera C Mazurak
BACKGROUND: This study aimed to assess whether feeding a diet containing fish oil was efficacious in reducing tumor- and subsequent chemotherapy-associated myosteatosis, and improving tumor response to treatment. METHODS: Female Fischer 344 rats were fed either a control diet for the entire study (control), or switched to a diet containing fish oil (2.0 g /100 g of diet) one week prior to tumor implantation (long term fish oil) or at the start of chemotherapy (adjuvant fish oil)...
2017: PloS One
https://www.readbyqxmd.com/read/28760426/body-composition-measurement-using-computed-tomography-does-the-phase-of-the-scan-matter
#9
Katie E Rollins, Hannah Javanmard-Emamghissi, Amir Awwad, Ian A Macdonald, Kenneth C H Fearon, Dileep N Lobo
OBJECTIVES: The aim of this study was to determine, from the methodologic standpoint, the effect of the presence or absence of intravenous contrast on body composition variables obtained by analysis of computed tomography (CT) images. METHODS: Triphasic abdominal (noncontrast, arterial phase, and portovenous phase contrast) CT scans from 111 patients were analyzed by two independent assessors at the third lumbar vertebral level using SliceOmatic software (version 5...
September 2017: Nutrition
https://www.readbyqxmd.com/read/28566220/the-relationship-between-tumour-stage-systemic-inflammation-body-composition-and-survival-in-patients-with-colorectal-cancer
#10
Stephen T McSorley, Douglas H Black, Paul G Horgan, Donald C McMillan
BACKGROUND: Disease progression in cancer is often associated with loss of weight and lean tissue and the development of a systemic inflammatory response (SIR) and these have prognostic value. The present study investigated the relationship between these factors in patients with operable colorectal cancer. METHODS: The study included 322 patients with primary operable colorectal cancer. In addition to BMI, pre-operative CT scans were used to define the presence of visceral obesity, sarcopenia and myosteatosis...
May 19, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/27903267/skeletal-muscle-quality-as-assessed-by-ct-derived-skeletal-muscle-density-is-associated-with-6-month-mortality-in-mechanically-ventilated-critically-ill-patients
#11
Wilhelmus G P M Looijaard, Ingeborg M Dekker, Sandra N Stapel, Armand R J Girbes, Jos W R Twisk, Heleen M Oudemans-van Straaten, Peter J M Weijs
BACKGROUND: Muscle quantity at intensive care unit (ICU) admission has been independently associated with mortality. In addition to quantity, muscle quality may be important for survival. Muscle quality is influenced by fatty infiltration or myosteatosis, which can be assessed on computed tomography (CT) scans by analysing skeletal muscle density (SMD) and the amount of intermuscular adipose tissue (IMAT). We investigated whether CT-derived low skeletal muscle quality at ICU admission is independently associated with 6-month mortality and other clinical outcomes...
December 1, 2016: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/27493866/sarcopenic-obesity-and-myosteatosis-are-associated-with-higher-mortality-in-patients-with-cirrhosis
#12
Aldo J Montano-Loza, Paul Angulo, Judith Meza-Junco, Carla M M Prado, Michael B Sawyer, Crystal Beaumont, Nina Esfandiari, Mang Ma, Vickie E Baracos
BACKGROUND AND AIMS: Obesity is frequently associated with cirrhosis, and cirrhotic patients may develop simultaneous loss of skeletal muscle and gain of adipose tissue, culminating in the condition of sarcopenic obesity. Additionally, muscle depletion is characterized by both a reduction in muscle size and increased proportion of muscular fat, termed myosteatosis. In this study, we aimed to establish the frequency and clinical significance of sarcopenia, sarcopenic obesity and myosteatosis in cirrhotic patients...
May 2016: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/27379021/fatty-infiltration-of-skeletal-muscle-mechanisms-and-comparisons-with-bone-marrow-adiposity
#13
REVIEW
Mark W Hamrick, Meghan E McGee-Lawrence, Danielle M Frechette
Skeletal muscle and bone share common embryological origins from mesodermal cell populations and also display common growth trajectories early in life. Moreover, muscle and bone are both mechanoresponsive tissues, and the mass and strength of both tissues decline with age. The decline in muscle and bone strength that occurs with aging is accompanied in both cases by an accumulation of adipose tissue. In bone, adipocyte (AC) accumulation occurs in the marrow cavities of long bones and is known to increase with estrogen deficiency, mechanical unloading, and exposure to glucocorticoids...
2016: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/27156809/laparoscopic-colorectal-cancer-surgery-combined-with-enhanced-recovery-after-surgery-protocol-eras-reduces-the-negative-impact-of-sarcopenia-on-short-term-outcomes
#14
COMMENT
M Pędziwiatr, M Pisarska, P Major, A Grochowska, M Matłok, K Przęczek, T Stefura, A Budzyński, S Kłęk
INTRODUCTION: Progressive skeletal muscle loss (sarcopenia) is a negative prognostic factor in patients treated for colorectal cancer. Nevertheless, the clinical impact of those changes in body composition has been analyzed only in patients undergoing open resections. The aim of the study was to assess whether laparoscopy may eliminate the deleterious prognostic impact of sarcopenia and whether the combination with enhanced recovery after surgery (ERAS) protocol may improve postoperative recovery also in sarcopenic patients...
June 2016: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27076522/greater-skeletal-muscle-fat-infiltration-is-associated-with-higher-all-cause-mortality-among-men-of-african-ancestry
#15
Qian Zhao, Joseph M Zmuda, Allison L Kuipers, Pallavi Jonnalagadda, Clareann H Bunker, Alan L Patrick, Ada O Youk, Iva Miljkovic
BACKGROUND: fat infiltration within and around skeletal muscle (i.e. myosteatosis) increases with ageing, is greater in African versus European ancestry men and is associated with poor health. Myosteatosis studies of mortality are lacking, particularly among African ancestry populations. METHODS: in the Tobago Health study, a prospective longitudinal study, we evaluated the association of all-cause mortality with quantitative computed tomography (QCT) measured lower leg myosteatosis (intermuscular fat (IM fat) and muscle density) in 1,652 African ancestry men using Cox proportional hazards models...
July 2016: Age and Ageing
https://www.readbyqxmd.com/read/27023701/role-of-nutrition-and-muscle-in-cirrhosis
#16
REVIEW
Ragesh B Thandassery, Aldo J Montano-Loza
Most widely recognized complications in cirrhotic patients include ascites, hepatic encephalopathy, variceal bleeding, kidney dysfunction, and hepatocellular carcinoma; however, malnutrition and muscle wasting (sarcopenia) constitute common complications which negatively impact survival, quality of life, and response to stressors, such as infection and surgery in patients with cirrhosis. Despite the important role that malnutrition and sarcopenia play in the prognosis of patients with cirrhosis, they are frequently overlooked, in part because nutritional assessment can be a difficult task in patients with cirrhosis due to fluid retention and/or overweight...
June 2016: Current Treatment Options in Gastroenterology
https://www.readbyqxmd.com/read/26994716/influence-of-body-composition-profile-on-outcomes-following-colorectal-cancer-surgery
#17
G Malietzis, A C Currie, T Athanasiou, N Johns, N Anyamene, R Glynne-Jones, R H Kennedy, K C H Fearon, J T Jenkins
BACKGROUND: Muscle depletion is characterized by reduced muscle mass (myopenia), and increased infiltration by intermuscular and intramuscular fat (myosteatosis). This study examined the role of particular body composition profiles as prognostic markers for patients with colorectal cancer undergoing curative resection. METHODS: Patients with colorectal cancer undergoing elective surgical resection between 2006 and 2011 were included. Lumbar skeletal muscle index (LSMI), visceral adipose tissue (VAT) surface area and mean muscle attenuation (MA) were calculated by analysis of CT images...
April 2016: British Journal of Surgery
https://www.readbyqxmd.com/read/26643983/muscle-quality-and-myosteatosis-novel-associations-with-mortality-risk-the-age-gene-environment-susceptibility-ages-reykjavik-study
#18
Ilse Reinders, Rachel A Murphy, Ingeborg A Brouwer, Marjolein Visser, Lenore Launer, Kristin Siggeirsdottir, Gudny Eiriksdottir, Vilmundur Gudnason, Palmi V Jonsson, Thomas F Lang, Tamara B Harris
Muscle composition may affect mortality risk, but prior studies have been limited to specific samples or less precise determination of muscle composition. We evaluated associations of thigh muscle composition, determined using computed tomography imaging, and knee extension strength with mortality risk among 4,824 participants aged 76.4 (standard deviation (SD), 5.5) years from the Age, Gene/Environment Susceptibility (AGES)-Reykjavik Study (2002-2006). Cox proportional hazards models were used to estimate hazard ratios...
January 1, 2016: American Journal of Epidemiology
https://www.readbyqxmd.com/read/26179425/the-prognostic-significance-and-relationship-with-body-composition-of-ccr7-positive-cells-in-colorectal-cancer
#19
George Malietzis, Gui Han Lee, David Bernardo, Alexandra I F Blakemore, Stella C Knight, Morgan Moorghen, Hafid O Al-Hassi, John T Jenkins
BACKGROUND AND OBJECTIVES: The host local immune response (LIR) to cancer is a determinant of cancer outcome. Regulation of this local response is largely achieved through chemokine synthesis from the tumor microenvironment such as C-Chemokine-Receptor-7 (CCR7). We examined the LIR measured as CCR7 expression, in colorectal cancers (CRC) and explored relationships with body composition (BC) and survival. METHODS: A study of paraffin-embedded tissue specimens was carried out in 116 patients with non-metastatic CRC...
July 2015: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/25963482/effect-of-intramuscular-adipose-tissue-content-on-prognosis-in-patients-undergoing-hepatocellular-carcinoma-resection
#20
Masaki Kaibori, Morihiko Ishizaki, Hiroya Iida, Kosuke Matsui, Tatsuma Sakaguchi, Kentaro Inoue, Toshihiko Mizuta, Yasushi Ide, Junji Iwasaka, Yutaka Kimura, Fumikazu Hayashi, Daiki Habu, Masanori Kon
BACKGROUND: It has recently been reported that myosteatosis, the infiltration of fat in skeletal muscle, is associated with insulin resistance and type 2 diabetes mellitus. The present study investigated the effect of skeletal muscle fat accumulation on short- and long-term outcomes following partial hepatectomy for hepatocellular carcinoma (HCC) and aimed to identify prognostic factors. METHODS: The records of 141 HCC patients who underwent hepatectomy were retrospectively reviewed...
July 2015: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
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