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https://www.readbyqxmd.com/read/29224021/comparison-of-muscle-mass-indices-using-computed-tomography-or-dual-x-ray-absorptiometry-for-predicting-physical-performance-in-hemodialysis-patients
#1
Seok Hui Kang, Hyun Seok Lee, Sukyung Lee, Ji-Hyung Cho, Jun Chul Kim
BACKGROUND/AIMS: Our study aims to evaluate the association between thigh muscle cross-sectional area (TMA) using computed tomography (CT), or appendicular skeletal muscle mass (ASM) using dual energy X-ray absorptiometry (DEXA), and physical performance levels in hemodialysis (HD) patients. METHODS: Patients were included if they were on HD for ≥6 months (n = 84). ASM and TMA were adjusted to body weight (BW, kg) or height2 (Ht2, m2). Each participant performed a short physical performance battery test (SPPB), a sit-to-stand for 30 second test (STS30), a 6-minute walk test (6-MWT), a timed up and go test (TUG), and hand grip strength (HGS) test...
December 7, 2017: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/29220530/impaired-lipolysis-diminished-fat-oxidation-and-metabolic-inflexibility-in-obese-girls-with-polycystic-ovary-syndrome
#2
Joon Young Kim, Hala Tfayli, Sara F Michaliszyn, Silva Arslanian
CONTEXT: Metabolic flexibility reflects the ability to switch from lipid to carbohydrate oxidation during insulin stimulation manifested in increased respiratory quotient (RQ). Despite insulin resistance in glucose metabolism in PCOS women and adolescents, little is known about adipose tissue metabolism and metabolic flexibility. OBJECTIVE: To investigate whole-body lipolysis, substrate oxidation and metabolic flexibility in obese PCOS vs. non-PCOS girls. PATIENTS/DESIGN: Twenty-one obese (BMI 32...
December 6, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29208404/naringin-prevents-bone-loss-in-a-rat-model-of-type-1-diabetes-mellitus
#3
M Rivoira, V Rodríguez, G Picotto, R Battaglino, N Tolosa de Talamoni
The aim of this work was to know whether naringin (NA) could prevent the bone complications in a model of streptozotocin (STZ) induced diabetes. Rats were divided in: 1) controls, 2) STZ-rats, 3) STZ-rats treated with 40 mg NA/kg, and 4) STZ-rats treated with 80 mg NA/kg. BMD and BMC were performed by DEXA. Bone histomorphometry and histology as well as TRAP staining were done in tibia. Osteocalcin (OCN) was determined in bone and serum. Glutathione content and SOD and catalase activities were assayed in bone marrow from femur...
December 2, 2017: Archives of Biochemistry and Biophysics
https://www.readbyqxmd.com/read/29201827/lumbar-scoliosis-in-patients-with-breast-cancer-prevalence-and-relationship-with-breast-cancer-treatment-age-bone-mineral-density-and-body-mass-index
#4
Sangeun Jung, Mee Gang Kim, Jong In Lee
Objective: To identify the prevalence of lumbar scoliosis in breast cancer patients and to investigate the potential risk factors of lumbar scoliosis. Methods: A retrospective chart review was performed in breast cancer patients aged more than 40 years who underwent dual energy X-ray absorptiometry (DEXA) scanning between January 2014 and December 2014. We divided the patients into control and experimental groups in order to investigate the influence of breast cancer treatment...
October 2017: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/29195559/phase-contrast-imaging-for-body-composition-measurement
#5
Huajie Han, Renfang Hu, Faiz Wali, Zhao Wu, Kun Gao, Shenghao Wang, Yonggang Gu, Yi Jin, Chao Zhai
PURPOSE: In this paper, we propose a novel method for human body composition measurement, especially for the bone mineral density (BMD) measurement. The proposed method, using the absorption and differential phase information retrieved from X-ray grating-based interferometer (XGBI) to measure the BMD, has potential to replace dual-energy X-ray absorptiometry (DEXA), which is currently widely used for body composition measurement. METHODS: The DEXA method employs two absorption images acquired at two different X-ray spectra (high energy and low energy) to calculate the human body composition...
November 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/29191096/lumbar-computed-tomography-scans-are-not-appropriate-surrogates-for-bone-mineral-density-scans-in-primary-adult-spinal-deformity
#6
Eitan M Kohan, Venu M Nemani, Stuart Hershman, Daniel G Kang, Michael P Kelly
OBJECTIVE The authors examined the correlation between lumbar spine CT Hounsfield unit (HU) measurements and bone mineral density measurements in an adult spinal deformity (ASD) population. METHODS Patients with ASD were identified in the records of a single institution. Lumbar CT scans were reviewed, and the mean HU measurements from L1-4 were recorded. Bone mineral density (BMD) was assessed using femoral neck and lumbar spine dual-energy x-ray absorptiometry (DEXA). The number of patients who met criteria for osteoporosis was determined for each imaging modality...
December 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/29190676/effects-of-serum-25-hydroxyvitamind-level-on-decreased-bone-mineral-density-at-femoral-neck-and-total-hip-in-chinese-type-2-diabetes
#7
Liting Guo, Zhihong Gao, Huanqi Ge
OBJECTIVE: The aims of this study is to observe the levels of serum 25-hydroxyvitaminD (25OHD), parathyroid hormone and bone mineral density (BMD) in type 2 diabetes as well as to analyze the correlationship between 25OHD level and BMD. METHODS: The subjects included 368 type 2 diabetic patients, ages ranged 40-79 years and 300 non-diabetic control subjects matched for age, gender and body mass index. The serum 25OHD concentration, parathyroid hormone level and BMDs value at lumbar spine (L1-L4), femoral neck, total hip and total body were measured...
2017: PloS One
https://www.readbyqxmd.com/read/29184636/efficacy-of-radiographic-density-values-of-the-first-and-second-cervical-vertebrae-recorded-by-cbct-technique-to-identify-patients-with-osteoporosis-and-osteopenia
#8
Farzad Esmaeli, Salar Payahoo, Majid Mobasseri, Masoome Johari, Javad Yazdani
Background. Osteoporosis is a systemic skeletal disease characterized by a decrease in bone strength with an increase in the risk of fractures. This study aimed at evaluating the ability to predict osteoporosis and osteopenia based on radiographic density values obtained from CBCT imaging technique. Methods. CBCT images of 108 patients were prepared by using NewTom VGI (QR, Verona, Italy). Then the patients were assigned to osteoporosis, osteopenia and healthy group, using the T-score derived from the DEXA technique...
2017: Journal of Dental Research, Dental Clinics, Dental Prospects
https://www.readbyqxmd.com/read/29184538/circulating-irisin-is-reduced-in-male-patients-with-type-1-and-type-2-myotonic-dystrophies
#9
Elena Dozio, Elena Passeri, Rosanna Cardani, Stefano Benedini, Carmen Aresta, Rea Valaperta, Massimiliano Corsi Romanelli, Giovanni Meola, Valeria Sansone, Sabrina Corbetta
Context: Myotonic dystrophies (DM) are dominantly inherited muscle disorders characterized by myotonia, muscle weakness, and wasting. The reasons for sarcopenia in DMs are uncleared and multiple factors are involved. Irisin, a positive hormone regulator of muscle growth and bone, may play a role. Objectives: To investigate (1) circulating irisin in a series of DM1 and DM2 male patients compared with healthy controls and (2) the relationships between irisin and anthropometric, metabolic and hormonal parameters...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29181953/irisin-levels-correlate-with-bone-mineral-density-in-soccer-players
#10
G Colaianni, A Notarnicola, L Sanesi, G Brunetti, L Lippo, M Celi, L Moretti, V Pesce, G Vicenti, B Moretti, S Colucci, M Grano
Irisin, a novel myokine produced in response to physical exercise by skeletal muscle, displays anabolic effect on bone and can improve the bone-loss-induced osteoporosis in hind limb suspended mice. It is well known that muscles positively impact the skeleton and in different sports, including soccer, total body bone mineral density (TB-BMD) is elevated. Therefore, we have investigated the correlation between irisin serum levels and total and bone sub-regional BMD in soccer players never studied before. In this study, Caucasian football players of Bari team have been enrolled...
October 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/29167640/visceral-fat-dysfunctions-in-the-rat-social-isolation-model-of-psychosis
#11
Stefania Schiavone, Giulia M Camerino, Emanuela Mhillaj, Margherita Zotti, Marilena Colaianna, Angelo De Giorgi, Antonello Trotta, Francesco P Cantatore, Elena Conte, Maria Bove, Paolo Tucci, Maria G Morgese, Luigia Trabace
Medication with neuroleptics has been associated with adipose tissue dysfunctions and, in particular, with increased visceral fat amount. However, several studies suggested that antipsychotic treatment might not be the main responsible of fat mass accumulation, as this has been also described in not treated psychotic patients. One of the most used "drug-free" rodent models of psychosis is the social isolation rearing of young adult rats, which provides a non-pharmacologic method of inducing long-term alterations reminiscent of symptoms seen in psychotic patients...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29166492/waist-to-height-ratio-index-or-the-prediction-of-overweight-in-children
#12
Sarah Aparecida Vieira, Andréia Queiroz Ribeiro, Helen Hermana Miranda Hermsdorff, Patrícia Feliciano Pereira, Silvia Eloiza Priore, Sylvia do Carmo Castro Franceschini
OBJECTIVE: To identify a low-cost abdominal adiposity index that has a higher accuracy in predicting excess weight in children aged four to seven years old. METHODS: A cross-sectional study with a sample of 257 children aged 4 to 7 years old. Indicators of abdominal adiposity assessed were: waist circumference (WC), waist-to-height ratio (WHR) and central fat percentage (measured by dual energy X-ray absorptiometry - DEXA). Overweight children were classified using body mass index by age (BMI/age)...
November 17, 2017: Revista Paulista de Pediatria: Orgão Oficial da Sociedade de Pediatria de São Paulo
https://www.readbyqxmd.com/read/29163502/regulating-immunogenicity-and-tolerogenicity-of-bone-marrow-derived-dendritic-cells-through-modulation-of-cell-surface-glycosylation-by-dexamethasone-treatment
#13
Kevin Lynch, Oliver Treacy, Jared Q Gerlach, Heidi Annuk, Paul Lohan, Joana Cabral, Lokesh Joshi, Aideen E Ryan, Thomas Ritter
Dendritic cellular therapies and dendritic cell vaccines show promise for the treatment of autoimmune diseases, the prolongation of graft survival in transplantation, and in educating the immune system to fight cancers. Cell surface glycosylation plays a crucial role in the cell-cell interaction, uptake of antigens, migration, and homing of DCs. Glycosylation is known to change with environment and the functional state of DCs. Tolerogenic DCs (tDCs) are commonly generated using corticosteroids including dexamethasone, however, to date, little is known on how corticosteroid treatment alters glycosylation and what functional consequences this may have...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29160443/body-fat-redistribution-and-changes-in-lipid-and-glucose-metabolism-in-people-living-with-hiv-aids
#14
Rebeca Antunes Beraldo, André Pereira Dos Santos, Mariana Palma Guimarães, Helena Siqueira Vassimon, Francisco José Albuquerque de Paula, Dalmo Roberto Lopes Machado, Maria Cristina Foss-Freitas, Anderson Marliere Navarro
INTRODUCTION: The HIV lipodystrophy syndrome is characterized by changes in metabolism, and body composition that increase cardiovascular risk of people living with HIV/AIDS (PLWHA) using highly active antiretroviral therapy (HAART). OBJECTIVE: To assess the prevalence of lipodystrophy and changes in lipid and glucose metabolism in PLWHA in use of HAART. METHODS: For the anthropometric evaluation we measured weight, height and abdominal circumference (AC)...
July 2017: Revista Brasileira de Epidemiologia, Brazilian Journal of Epidemiology
https://www.readbyqxmd.com/read/29154455/translational-evidence-of-prothrombotic-and-inflammatory-endothelial-damage-in-cushing-syndrome-after-remission
#15
Gloria Aranda, Rebeca Fernandez-Ruiz, Marta Palomo, Mónica Romo, Mireia Mora, Irene Halperin, Gregori Casals, Joaquim Enseñat, Oscar Vidal, Maribel Diaz-Ricart, Felicia A Hanzu
OBJECTIVE: Sustained evidence from observational studies indicates that after remission of Cushing Syndrome (CS) a cardiovascular risk phenotype persists. Here we performed a translational study in active CS and CS in remission to evaluate the subclinical cardiometabolic burden and to explore the direct proinflammatory and prothrombotic potential of their sera on the endothelium in an in vitro translational atherothrombotic cell model. PATIENTS: Cross-sectional study...
November 20, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/29150298/spontaneous-osteoclastogenesis-hypothesis-for-gender-unrelated-osteoporosis-screening-and-diagnosis
#16
F Salamanna, R Giardino, M Fini
Women are at greater risk of developing osteoporosis (OP). However, in the past few years it has become more widely recognized that OP is a significant problem also in men although OP is frequently under-diagnosed and, consequently, under treated in men. Most guidelines, screening and fracture risk evaluation methods as well as pharmacologic agents have been developed for women and then adapted to men. Bone Mineral Density (BMD) measurement by Dual X-ray Absorptiometry (DEXA) is reported as T score and the capability of DEXA to diagnose OP and predict fracture risk is still debated...
November 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29149890/physical-activity-and-calorie-intake-mediate-the-relationship-from-depression-to-body-fat-mass-among-female-mexican-health-workers
#17
Amado D Quezada, Nayeli Macías-Waldman, Jorge Salmerón, Tessa Swigart, Katia Gallegos-Carrillo
BACKGROUND: Depression is a foremost cause of morbidity throughout the world and the prevalence of depression in women is about twice as high as men. Additionally, overweight and obesity are major global health concerns. We explored the relationship between depression and body fat, and the role of physical activity and diet as mediators of this relationship in a sample of 456 adult female Mexican health workers. METHOD: Longitudinal and cross-sectional analyses using data from adult women of the Health Workers Cohort Study (HWCS) Measures of body fat mass (kg from DEXA), dietary intake (kcal from FFQ), leisure time activity (METs/wk) and depression (CES-D) were determined in two waves (2004-2006 and 2010-2011)...
November 17, 2017: International Journal of Behavioral Nutrition and Physical Activity
https://www.readbyqxmd.com/read/29138805/extracellular-polysaccharides-purified-from-aureobasidium-pullulans-sm%C3%A2-2001-polycan-inhibit-dexamethasone%C3%A2-induced-muscle-atrophy-in-mice
#18
Jong-Min Lim, Young Joon Lee, Hyung-Rae Cho, Dong-Chan Park, Go-Woon Jung, Sae Kwang Ku, Jae-Suk Choi
The present study assessed the beneficial skeletal muscle‑preserving effects of extracellular polysaccharides from Aureobasidium pullulans SM‑2001 (Polycan) (EAP) on dexamethasone (DEXA)‑induced catabolic muscle atrophy in mice. To investigate whether EAP prevented catabolic DEXA‑induced muscle atrophy, and to examine its mechanisms of action, EAP (100, 200 and 400 mg/kg) was administered orally, once a day for 24 days. EAP treatment was initiated 2 weeks prior to DEXA treatment (1 mg/kg, once a day for 10 days) in mice...
November 10, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29129406/neuropeptide-y-y2-antagonist-treated-ovariectomized-mice-exhibit-greater-bone-mineral-density
#19
K L Seldeen, P G Halley, C H Volmar, M A Rodríguez, M Hernandez, M Pang, S K Carlsson, L J Suva, C Wahlestedt, B R Troen, S P Brothers
Osteoporosis, a disease characterized by progressive bone loss and increased risk of fracture, often results from menopausal loss of estrogen in women. Neuropeptide Y has been shown to negatively regulate bone formation, with amygdala specific deletion of the Y2 receptor resulting in increased bone mass in mice. In this study, ovariectomized (OVX) mice were injected once daily with JNJ-31020028, a brain penetrant Y2 receptor small molecule antagonist to determine the effects on bone formation. Antagonist treated mice had reduced weight and showed increased whole-body bone mineral density compared to vehicle-injected mice...
November 7, 2017: Neuropeptides
https://www.readbyqxmd.com/read/29125429/graft-subsidence-as-a-predictor-of-revision-surgery-following-stand-alone-lateral-lumbar-interbody-fusion
#20
Zachary J Tempel, Michael M McDowell, David M Panczykowski, Gurpreet S Gandhoke, D Kojo Hamilton, David O Okonkwo, Adam S Kanter
OBJECTIVE Lateral lumbar interbody fusion (LLIF) is a less invasive surgical option commonly used for a variety of spinal conditions, including in high-risk patient populations. LLIF is often performed as a stand-alone procedure, and may be complicated by graft subsidence, the clinical ramifications of which remain unclear. The aim of this study was to characterize further the sequelae of graft subsidence following stand-alone LLIF. METHODS A retrospective review of prospectively collected data was conducted on consecutive patients who underwent stand-alone LLIF between July 2008 and June 2015; 297 patients (623 levels) met inclusion criteria...
November 10, 2017: Journal of Neurosurgery. Spine
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