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https://www.readbyqxmd.com/read/28818662/organic-matter-quality-structures-benthic-fatty-acid-patterns-and-the-abundance-of-fungi-and-bacteria-in-temperate-lakes
#1
Robert Taube, Lars Ganzert, Hans-Peter Grossart, Gerd Gleixner, Katrin Premke
Benthic microbial communities (BMCs) play important roles in the carbon cycle of lakes, and benthic littoral zones in particular have been previously highlighted as biogeochemical hotspots. Dissolved organic matter (DOM) presents the major carbon pool in lakes, and although the effect of DOM composition on the pelagic microbial community composition is widely accepted, little is known about its effect on BMCs, particularly aquatic fungi. Therefore, we investigated the composition of benthic littoral microbial communities in twenty highly diverse lakes in northeast Germany...
August 14, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28818045/bmc-ecology-image-competition-2017-the-winning-images
#2
EDITORIAL
Christopher Foote, Chris T Darimont, Michel Baguette, Simon Blanchet, Luke M Jacobus, Dominique Mazzi, Josef Settele
For the fifth year, BMC Ecology is proud to present the winning images from our annual image competition. The 2017 edition received entries by talented shutterbug-ecologists from across the world, showcasing research that is increasing our understanding of ecosystems worldwide and the beauty and diversity of life on our planet. In this editorial we showcase the winning images, as chosen by our Editorial Board and guest judge Chris Darimont, as well as our selection of highly commended images. Enjoy!
August 18, 2017: BMC Ecology
https://www.readbyqxmd.com/read/28817419/the-association-of-fat-and-lean-tissue-with-whole-body-and-spine-bone-mineral-density-is-modified-by-hiv-status-and-sex-in-children-and-youth
#3
Denise L Jacobson, Jane C Lindsey, Brent A Coull, Kathleen Mulligan, Priya Bhagwat, Grace M Aldrovandi
BACKGROUND: HIV-infected (HIV-pos) male children/youth showed lower bone mineral density at sexual maturity than HIV-uninfected (HIV-neg) females. It is not known whether complications of HIV disease, including abnormal body fat distribution, contribute to lower bone accrual in male HIV-pos adolescents. METHODS: In a cross-sectional study, we evaluated the relationship between body composition (fat and lean mass) and bone mass in HIV-pos and HIV-neg children/youth and determined if it is modified by HIV status and sex...
August 16, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28812206/differences-in-femoral-neck-structure-between-elderly-caucasian-and-chinese-populations-a-cross-sectional-study-of-perth-beijing-cohorts
#4
L Wang, B C C Khoo, X G Cheng, K Brown, J R Lewis, Y B Su, Z Guo, K Li, R L Prince
Structural skeletal differences of the femoral neck of older Beijing-Chinese and Perth-Caucasian women were compared; adjusting for frame size-related differences, Beijing-Chinese have lower periosteal width; however, indices of internal bone distribution suggest that Beijing-Chinese may exhibit increased resistance to fracture that may relate to the reduced hip fracture incidence. INTRODUCTION: Ethnic differences in skeletal structure may relate to differences in hip fracture risk in Chinese and Caucasian populations...
August 15, 2017: Archives of Osteoporosis
https://www.readbyqxmd.com/read/28807473/water-treatment-by-magnetic-field-increases-bone-mineral-density-of-rats
#5
Geraldo Balieiro Neto, Jair Rodini Engracia Filho, Bruna Rezende Silva Martins de Oliveira, Cássia Maria Molinaro Coelho, Lilian Francisco Arantes de Souza, Mario Jefferson Quirino Louzada
Water treatment using a magnetic field is an attractive but controversial issue with regard to its effects on human health. This study aimed to investigate the effects of water treatment using a magnetic field on the bone mineral density (BMD), bone mineral content (BMC), bone area (BA), bone resistance (BR), blood gas analysis, blood viscosity, and blood biochemical profile of rats. Forty-eight Wistar rats were divided into 2 groups: control (n = 24) and magnetic water-treated (n = 24). Each of these groups was subdivided into 3 groups to evaluate 3 consumption periods (15, 30, and 45 d)...
August 11, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28800741/erythrocyte-depletion-from-bone-marrow-performance-evaluation-after-50-clinical-scale-depletions-with-spectra-optia-bmc
#6
Soo-Zin Kim-Wanner, Gesine Bug, Juliane Steinmann, Salem Ajib, Nadine Sorg, Carolin Poppe, Milica Bunos, Eva Wingenfeld, Christiane Hümmer, Beate Luxembourg, Erhard Seifried, Halvard Bonig
BACKGROUND: Red blood cell (RBC) depletion is a standard graft manipulation technique for ABO-incompatible bone marrow (BM) transplants. The BM processing module for Spectra Optia, "BMC", was previously introduced. We here report the largest series to date of routine quality data after performing 50 clinical-scale RBC-depletions. METHODS: Fifty successive RBC-depletions from autologous (n = 5) and allogeneic (n = 45) BM transplants were performed with the Spectra Optia BMC apheresis suite...
August 11, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28799180/accuracy-of-octa-polar-bioelectrical-impedance-analysis-for-the-assessment-of-total-and-appendicular-body-composition-in-children-and-adolescents-with-hiv-comparison-with-dual-energy-x-ray-absorptiometry-and-air-displacement-plethysmography
#7
J A C de Castro, L R A de Lima, D A S Silva
BACKGROUND: Body composition analysis has been used to investigate fat mass (FM) and bone mineral content (BMC) in children and adolescents diagnosed with HIV. Investigating the validity of bioelectrical impedance analysis (BIA) is interesting with respect to testing useful techniques for monitoring body composition in children and adolescents in clinical practice. The present study aimed to determine the validity of body composition analysis by BIA compared to dual-energy X-ray absorptiometry (DXA) and air displacement plethysmography (ADP) in children and adolescents an HIV diagnosis...
August 10, 2017: Journal of Human Nutrition and Dietetics: the Official Journal of the British Dietetic Association
https://www.readbyqxmd.com/read/28799060/association-between-anthropometric-indices-body-composition-and-bone-parameters-in-thai-female-adolescents
#8
Rapheeporn Khwanchuea, Chuchard Punsawad
OBJECTIVE: To investigate correlations between anthropometrics and body composition with bone parameters of the whole-body and lumbar spine in non-obese and obese Thai female adolescents. METHODS: This study was performed in 135 female adolescents aged 15 to 18 y enrolled in secondary schools in southern Thailand. Subjects were grouped into non-obesity (underweight and normal-to-overweight) (BMI < 25) and obesity (BMI ≥ 25) groups. Anthropometric indices for obesity [body weight (BW), waist circumference (WC), and body mass index (BMI)] were recorded...
August 11, 2017: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/28797019/associations-of-low-vitamin-d-and-elevated-parathyroid-hormone-concentrations-with-bone-mineral-density-in-perinatally-hiv-infected-children
#9
Denise L Jacobson, Charles B Stephensen, Tracie L Miller, Kunjal Patel, Janet S Chen, Russell B Van Dyke, Ayesha Mirza, Gertrud U Schuster, Rohan Hazra, Angela Ellis, Sean S Brummel, Mitchell E Geffner, Margarita Silio, Stephen A Spector, Linda A DiMeglio
BACKGROUND: Perinatally HIV-infected (PHIV) children have, on average, lower bone mineral density (BMD) than perinatally HIV-exposed uninfected (PHEU) and healthy children. Low 25-hydroxy vitamin D [25(OH)D] and elevated parathyroid hormone (PTH) concentrations may lead to suboptimal bone accrual. METHODS: PHIV and PHEU children in the Pediatric HIV/AIDS Cohort Study had total body (TB) and lumbar spine (LS) BMD and bone mineral content (BMC) measured by dual-energy x-ray absorptiometry; BMD z-scores (BMDz) were calculated for age and sex...
September 1, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28772450/combining-bioactive-multifunctional-dental-composite-with-pamam-for-root-dentin-remineralization
#10
Shimeng Xiao, Kunneng Liang, Michael D Weir, Lei Cheng, Huaibing Liu, Xuedong Zhou, Yi Ding, Hockin H K Xu
Objectives. The objectives of this study were to: (1) develop a bioactive multifunctional composite (BMC) via nanoparticles of amorphous calcium phosphate (NACP), 2-methacryloyloxyethyl phosphorylcholine (MPC), dimethylaminohexadecyl methacrylate (DMAHDM) and nanoparticles of silver (NAg); and (2) investigate the effects of combined BMC + poly (amido amine) (PAMAM) on remineralization of demineralized root dentin in a cyclic artificial saliva/lactic acid environment for the first time. Methods. Root dentin specimens were prepared and demineralized with 37% phosphoric acid for 15 s...
January 22, 2017: Materials
https://www.readbyqxmd.com/read/28766890/inkt-cell-activation-plus-t-cell-transfer-establishes-complete-chimerism-in-a-murine-sublethal-bone-marrow-transplant-model
#11
Rumi Ishii, Toshihito Hirai, Satoshi Miyairi, Kazuya Omoto, Masayoshi Okumi, Yasuyuki Ishii, Kazunari Tanabe
Transplant tolerance induction makes it possible to preserve functional grafts for a lifetime without immunosuppressants. One powerful method is to generate mixed hematopoietic chimeras in recipients by adoptive transfer of donor-derived bone marrow cells (BMCs). In our murine transplantation model, we established a novel method for mixed chimera generation using sublethal irradiation, CD40-CD40L blockade, and invariant natural killer T-cell activation. However, numerous BMCs that are required to achieve stable chimerism makes it difficult to apply this model for human transplantation...
August 2, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28762507/increasing-physical-activity-for-veterans-in-the-mental-health-intensive-case-management-program-a-community-based-intervention
#12
S Akeya Harrold, Julian Libet, Charlene Pope, Joy A Lauerer, Emily Johnson, Barbara J Edlund
AIMS AND OBJECTIVES: Individuals with severe mental illness (SMI), experience increased mortality-20 years greater disparity for men and 15 years greater disparity for women-compared to the general population (Thornicroft G. Physical health disparities and mental illness: The scandal of premature mortality. Br J Psychiatr. 2011;199:441-442). Numerous factors contribute to premature mortality in persons with SMI, including suicide and accidental death (Richardson RC, Faulkner G, McDevitt J, Skrinar GS, Hutchinson D, Piette JD...
August 1, 2017: Perspectives in Psychiatric Care
https://www.readbyqxmd.com/read/28759569/proposed-equations-and-reference-values-for-calculating-bone-health-in-children-and-adolescent-based-on-age-and-sex
#13
Rossana Gómez-Campos, Cynthia Lee Andruske, Miguel de Arruda, Camilo Urra Albornoz, Marco Cossio-Bolaños
BACKGROUND: The Dual Energy X-Ray Absorptiometry (DXA) is the gold standard for measuring BMD and bone mineral content (BMC). In general, DXA is ideal for pediatric use. However, the development of specific standards for particular geographic regions limits its use and application for certain socio-cultural contexts. Additionally, the anthropometry may be a low cost and easy to use alternative method in epidemiological contexts. The goal of our study was to develop regression equations for predicting bone health of children and adolescents based on anthropometric indicators to propose reference values based on age and sex...
2017: PloS One
https://www.readbyqxmd.com/read/28758545/a-topographical-map-approach-to-representing-treatment-efficacy-a-focus-on-positive-psychology-interventions
#14
Eugenia I Gorlin, Josephine Lee, Michael W Otto
A recent meta-analysis by Bolier et al. indicated that positive psychology interventions have overall small to moderate effects on well-being, but results were quite heterogeneous across intervention trials. Such meta-analytic research helps condense information on the efficacy of a broad psychosocial intervention by averaging across many effects; however, such global averages may provide limited navigational guidance for selecting among specific interventions. Here, we introduce a novel method for displaying qualitative and quantitative information on the efficacy of interventions using a topographical map approach...
July 31, 2017: Cognitive Behaviour Therapy
https://www.readbyqxmd.com/read/28756285/longitudinal-effects-of-parathyroid-hormone-treatment-on-morphological-densitometric-and-mechanical-properties-of-mouse-tibia
#15
Yongtao Lu, Maya Boudiffa, Enrico Dall'Ara, Yue Liu, Ilaria Bellantuono, Marco Viceconti
The use of Parathyroid Hormone (PTH) as bone anabolic is limited due to cost-benefit assessments. Preclinical studies evaluating the effects of PTH on bone have reported variable and often contradictory results. Here, we have applied a new approach using a combination of in-vivo longitudinal µCT, image processing techniques and finite element models to monitor early local changes in the whole tibia (divided in 40 compartments) and mechanical properties of female C57BL/6J mice treated with PTH 1-34, compared to controls...
July 25, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28755448/short-term-in%C3%A2-vivo-precision-of-whole-body-composition-measurements-on-the-horizon-a-densitometer
#16
Michael Nowitz, Paula Monahan
INTRODUCTION: Dual-energy X-ray absorptiometry (DXA) is increasingly being used to assess abnormalities in body composition associated with a wide variety of conditions including obesity, sarcopenia, diabetes, anorexia, human immunodeficiency virus lipodystrophy, malabsorption and neuromuscular disorders. The objective of this study was to determine the short-term in vivo precision and least significant change in serial body composition measurements provided by the Hologic Horizon A densitometer as there is no published, peer reviewed body composition precision data on Horizon scanners in the medical literature...
July 29, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28755011/impact-of-chiropractic-manipulation-on-bone-and-skeletal-muscle-of-ovariectomized-rats
#17
A López-Herradón, R Fujikawa, M Gómez-Marín, J P Stedile-Lovatel, F Mulero, J A Ardura, P Ruiz, I Muñoz, P Esbrit, I Mahíllo-Fernández, A Ortega-de Mues
Evidence suggests that chiropractic manipulation might exert positive effects in osteoporotic patients. The aim of this study was to evaluate the effects of chiropractic manipulation on bone structure and skeletal muscle in rats with bone loss caused by ovariectomy (OVX). The 6-month old Sprague-Dawley rats at 10 weeks following OVX or sham operation (Sh) did not suffer chiropractic manipulation (NM group) or were submitted to true chiropractic manipulation using the chiropractic adjusting instrument Activator V(®) three times/week for 6 weeks as follows: Force 1 setting was applied onto the tibial tubercle of the rat right hind limb (TM group), whereas the corresponding left hind limb received a false manipulation (FM group) consisting of ActivatorV(®) firing in the air and slightly touching the tibial tubercle...
July 28, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/28754858/melphalan-modifies-the-bone-microenvironment-by-enhancing-osteoclast-formation
#18
Ryan C Chai, Michelle M McDonald, Rachael L Terry, Nataša Kovačić, Jenny M Down, Jessica A Pettitt, Sindhu T Mohanty, Shruti Shah, Gholamreza Haffari, Jiake Xu, Matthew T Gillespie, Michael J Rogers, John T Price, Peter I Croucher, Julian M W Quinn
Melphalan is a cytotoxic chemotherapy used to treat patients with multiple myeloma (MM). Bone resorption by osteoclasts, by remodeling the bone surface, can reactivate dormant MM cells held in the endosteal niche to promote tumor development. Dormant MM cells can be reactivated after melphalan treatment; however, it is unclear whether melphalan treatment increases osteoclast formation to modify the endosteal niche.Melphalan treatment of mice for 14 days decreased bone volume and the endosteal bone surface, and this was associated with increases in osteoclast numbers...
July 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28752630/safety-and-efficacy-of-percutaneous-intramyocardial-bone-marrow-cell-injection-for-chronic-myocardial-ischemia-long-term-results
#19
Sander F Rodrigo, Imke Mann, Jan van Ramshorst, Saskia L Beeres, Jaap Jan Zwaginga, Willem E Fibbe, Jeroen J Bax, Martin J Schalij, Douwe E Atsma
BACKGROUND: Intramyocardial injection of bone marrow cells (BMC) in refractory angina patients with chronic myocardial ischemia has shown to be safe and improve clinical status during short-term follow-up. However, scarce data are available on long-term (>12 months) safety and efficacy. Therefore, the occurrence of clinical events and the long-term clinical effects of intramyocardial BMC injection were evaluated in patients with chronic myocardial ischemia up to 10 years after treatment...
July 28, 2017: Journal of Interventional Cardiology
https://www.readbyqxmd.com/read/28748380/autologous-bone-marrow-concentrate-intradiscal-injection-for-the-treatment-of-degenerative-disc-disease-with-three-year-follow-up
#20
Kenneth A Pettine, Richard K Suzuki, Theodore T Sand, Matthew B Murphy
PURPOSE: The purpose of this study is to assess safety and feasibility of intradiscal bone marrow concentrate (BMC) injections to treat low back discogenic pain as an alternative to surgery with three year minimum follow-up. METHODS: A total of 26 patients suffering from degenerative disc disease and candidates for spinal fusion or total disc replacement surgery were injected with 2 ml autologous BMC into the nucleus pulposus of treated lumbar discs. A sample aliquot of BMC was characterized by flow cytometry and CFU-F assay to determine progenitor cell content...
July 26, 2017: International Orthopaedics
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