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https://www.readbyqxmd.com/read/28918555/prognostic-factors-for-mortality-in-middle-aged-and-older-hemodialysis-patients-a-5-year-observational-study
#1
Kojiro Nagai, Motokazu Matsuura, Kenji Tsuchida, Hiro-Omi Kanayama, Toshio Doi, Jun Minakuchi
Clinical guidelines for hemodialysis therapy have been described in an evidence-based manner with most evidence from randomized control trials or retrospective studies in which all generations of the hemodialysis patients were enrolled. Therefore, the question still remains whether these guidelines can be applied to increasing older patients. This study is an observational study, including 735 patients who received maintenance hemodialysis in April 2006. At baseline, the participants' age was 62.1 ± 12...
September 16, 2017: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/28918551/bio-economic-evaluation-of-a-reduced-phosphorus-supplementation-strategy-for-a-cow-calf-system-in-brazil-a-case-study
#2
Samara P Lopes, Felipe Z Garcia, Vinícius C Souza, Diogo Fleury A Costa, Pedro Malafaia
Fertility, weight of calves at weaning, and the economic aspects of a breeding herd receiving mineral supplements containing 75 or 12.5 g of phosphorus (P)/kg were measured from 2013 to 2016. No differences in reproduction parameters or weight at weaning were found before and after the adoption of the new scheme of mineral supplementation. Before the study, the annual cost with the formula containing more P was equivalent to 29.3 weaned beef calves; after the P reduction, the annual cost was equivalent to 2...
September 16, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28918533/the-associations-between-dietary-patterns-and-bone-health-according-to-the-tgf-%C3%AE-1-t869%C3%A2-c-polymorphism-in-postmenopausal-iranian-women
#3
Sajjad Moradi, Leila Khorrami-Nezhad, Sima Ali-Akbar, Fatemeh Zare, Tanaz Alipour, Azadeh Dehghani Kari Bozorg, Mir Saeed Yekaninejad, Zhila Maghbooli, Khadijeh Mirzaei
BACKGROUND/OBJECTIVE: Recent studies have shown that dietary variants and genetic variants play a decisive role in the risk of developing osteoporosis. Therefore, the objective of the present study was to examine associations between dietary pattern and bone health, according to the TGF-β1 T869→C polymorphism, in postmenopausal Iranian women. MATERIALS AND METHODS: In this study, 264 postmenopausal women aged from 46 to 78 years were examined. Body composition was measured by a body composition analyzer and physical activity by the short-form physical activity questionnaire...
September 16, 2017: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/28918227/bone-remodeling-of-the-distal-femur-after-uncemented-total-knee-arthroplasty-a-2-year-prospective-dxa-study
#4
Mikkel Rathsach Andersen, Nikolaj S Winther, Thomas Lind, Henrik M Schrøder, Michael Mørk Petersen
Loss of bone stock as a response to the bone trauma, immobilization, and stress shielding related to joint replacement surgery increases the risk of fracture of the distal femur after total knee arthroplasty. Previous studies of uncemented femoral components have reported very high levels of bone loss in the distal femur. This study investigates the adaptive bone remodeling of the distal femur after uncemented total knee arthroplasty. We performed a 2-year follow-up of 53 patients (mean age 61.5 [38-70] years, F/M = 27/26, body mass index 29...
September 13, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28918137/reticulo-rumen-mass-epithelium-gene-expression-and-systemic-biomarkers-of-metabolism-and-inflammation-in-holstein-dairy-cows-fed-a-high-energy-diet
#5
J M Arroyo, A Hosseini, Z Zhou, A Alharthi, E Trevisi, J S Osorio, J J Loor
Feeding a higher-energy diet by increasing cereal grains at the expense of forage during the last 3 to 4 wk prepartum is a traditional approach to help the rumen "adapt" to the traditional diets fed at the onset of lactation. Increasing grain/concentrate in the diet changes ruminal fermentation and in sheep and goats elicits marked changes in mRNA expression of immune-related genes in ruminal epithelium. Whether such changes at the epithelial and systemic levels occur in dairy cows when the dietary energy content increases at a fixed level of concentrate is unknown...
September 13, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28918134/crystallization-and-demineralization-phenomena-in-washed-rind-cheese
#6
Gil F Tansman, Paul S Kindstedt, John M Hughes
This report documents an observational study of a high-moisture washed-rind cheese. Three batches of cheese were sampled on a weekly basis for 6 wk and again at wk 10. Center, under-rind, rind, and smear samples were tested for pH, moisture, and selected mineral elements. Powder x-ray diffractometry and petrographic microscopy were applied to identify and image the crystal phases. The pH of the rind increased by over 2 pH units by wk 10. The pH of the under-rind increased but remained below the rind pH, whereas the center pH decreased for most of aging and only began to rise after wk 5...
September 13, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28918101/silver-diamine-fluoride-remineralized-artificial-incipient-caries-in-permanent-teeth-after-bacterial-ph-cycling-in-vitro
#7
Kulnipa Punyanirun, Thanida Yospiboonwong, Thansinee Kunapinun, Panida Thanyasrisung, Chutima Trairatvorakul
OBJECTIVES: To investigate the remineralizing effect of 38% silver diamine fluoride (SDF) application on enamel artificial caries in adjunct to 1000ppm fluoride toothpaste compared with fluoride toothpaste alone by analyzing the mineral density, depth of remineralization, and remineralization percentage of the lesions. METHODS: Eighteen artificial caries slabs were created from the proximal surfaces of nine chemically demineralized premolars. The slabs were scanned by Micro-Computed Tomography (Micro-CT) to determine the baseline mineral density of the initial lesions and randomly allocated into 2 groups...
September 13, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28918079/clogging-of-an-alpine-streambed-by-silt-sized-particles-insights-from-laboratory-and-field-experiments
#8
Jasmin Fetzer, Markus Holzner, Michael Plötze, Gerhard Furrer
Clogging of streambeds by suspended particles (SP) can cause environmental problems, as it can negatively influence, e.g., habitats for macrozoobenthos, fish reproduction and groundwater recharge. This especially applies in the case of silt-sized SP. Until now, most research has dealt with coarse SP and was carried out in laboratory systems. The aims of this study are to examine (1) whether physical clogging by silt-sized SP exhibits the same dynamics and patterns as by sand-sized SP, and (2) the comparability of results between laboratory and field experiments...
September 7, 2017: Water Research
https://www.readbyqxmd.com/read/28917900/mineralized-agar-based-nanocomposite-films-potential-food-packaging-materials-with-antimicrobial-properties
#9
Ivana Malagurski, Steva Levic, Aleksandra Nesic, Miodrag Mitric, Vladimir Pavlovic, Suzana Dimitrijevic-Brankovic
New mineralized, agar-based nanocomposite films (Zn-carbonate and Zn-phosphate/agar) were produced by a combination of in situ precipitation and a casting method. The presence of minerals significantly influenced the morphology, properties and functionality of the obtained nanocomposites. Reinforcement with the Zn-mineral phase improved the mechanical properties of the carbonate-mineralized films, but had a negligible effect on the phosphate-mineralized samples. Both nanocomposites showed improved optical and thermal properties, better Zn(II) release potential in a slightly acidic environment and exhibited antimicrobial activity against S...
November 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28917869/high-aspect-ratio-phospho-calcified-rock-candy-like-cellulose-nanowhiskers-of-wastepaper-applicable-in-osteogenic-differentiation-of-hmscs
#10
Mohsen Shahrousvand, Fatemeh Ahmadi Tabar, Ehsan Shahrousvand, Amir Babaei, Mohammad Mahdi Hasani-Sadrabadi, Gity Mir Mohamad Sadeghi, Hafez Jafari, Ali Salimi
The aim of this study was to prepare cellulose nanowhiskers (CNWs) from wastepaper powder (WPP), as an environmentally friendly approach for obtaining the source material, which is a highly available and low-cost precursor for cellulose nanomaterial processing. Acid hydrolysis and calcification treatments were employed for extraction of CNWs and preparation of novel phospho-calcified cellulose nanowhiskers (PCCNWs). CNWs and PCCNWs were analyzed through optical microscopy (OM), scanning electron microscopy (SEM), Fourier-transformed infrared spectra (FTIR) and X-ray diffraction analysis (XRD)...
November 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28917762/full-validation-of-a-method-for-the-determination-of-drugs-of-abuse-in-non-mineralized-dental-biofilm-using-liquid-chromatography-tandem-mass-spectrometry-and-application-to-postmortem-samples
#11
Kerstin Henkel, Markus J Altenburger, Volker Auwärter, Merja A Neukamm
Alternative matrices play a major role in postmortem forensic toxicology, especially if common matrices (like body fluids or hair) are not available. Incorporation of illicit and medicinal drugs into non-mineralized dental biofilm (plaque) seems likely but has not been investigated so far. Analysis of plaque could therefore extend the spectrum of potentially used matrices in postmortem toxicology. For this reason, a rapid, simple and sensitive method for the extraction, determination and quantification of ten drugs of abuse from plaque using liquid chromatography-tandem mass spectrometry (LC-MS/MS) was developed and fully validated...
January 1, 2018: Talanta
https://www.readbyqxmd.com/read/28917577/direct-pulp-capping-with-calcium-hydroxide-mineral-trioxide-aggregate-and-biodentine-in%C3%A2-permanent-young-teeth-with-caries-a%C3%A2-randomized-clinical-trial
#12
Claudia Brizuela, Andrea Ormeño, Carolina Cabrera, Roxana Cabezas, Carolina Inostroza Silva, Valeria Ramírez, Montse Mercade
INTRODUCTION: Direct pulp capping treatment is intended to preserve pulp vitality, to avoid or retard root canal treatment, and, in cases with an open apex, to allow continued root development. Historically, calcium hydroxide (CH) was the gold standard material, but nowadays calcium silicate materials (CSMs) are displacing CH because of their high bioactivity, biocompatibility, sealing ability, and mechanical properties. However, more randomized clinical trials are needed to confirm the appropriateness of CSMs as replacement materials for CH in direct pulp capping procedures...
September 13, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28917238/qualitative-study-of-eating-habits-in-bruneian-primary-school-children
#13
Tajidah Talip, Rajiah Serudin, Salmah Noor, Nik Tuah
BACKGROUND AND OBJECTIVES: Childhood obesity is a serious public health issue globally and poor eating habits are an important contributing factor. This study aimed to explore the perceptions, practices and attitudes towards healthy eating in Bruneian primary school children. METHODS AND STUDY DESIGN: A qualitative study was conducted among 40 subjects involving 18 children (aged 9-10 years old), 12 parents and 10 teachers, who were recruited from two primary schools using convenience sampling...
2017: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28917173/synthetic-iron-hydr-oxide-glucose-associations-in-subsurface-soil-effects-on-decomposability-of-mineral-associated-carbon
#14
R C Porras, C E Hicks Pries, M S Torn, P S Nico
Soils are a globally important reservoir of organic carbon. There is a growing understanding that interactions with soil mineral phases contribute to the accumulation and retention of otherwise degradable organic matter (OM) in soils and sediments. However, the bioavailability of organic compounds in mineral-organic-associations (MOAs), especially under varying environmental conditions is not well known. To assess the impact of mineral association and warming on the decomposition of an easily respirable organic substrate (glucose), we conducted a series of laboratory incubations at different temperatures with field-collected soils from 10 to 20cm, 50-60cm, and 80-90cm depth...
September 13, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28917163/raman-and-fourier-transform-infrared-spectroscopic-study-of-pyromorphite-vanadinite-solid-solutions
#15
Urszula Solecka, Tomasz Bajda, Justyna Topolska, Sylwia Zelek-Pogudz, Maciej Manecki
Due to the great range of the application fields for apatites, there is a strong need to complete the data set determining the properties of these minerals. In this study, Raman and Infrared spectra of the phases from pyromorphite Pb5(PO4)3Cl - vanadinite Pb5(VO4)3Cl series were investigated. Totally, 9 samples (2 end-members and 7 solid solutions of the series) were synthesized at 25°C and pH=3.5, and analyzed. In the Raman and Infrared spectra of the studied Pb-apatites, the bands typical for the vibrations in the PO4 and the VO4 tetrahedra appeared...
August 26, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28917085/a-retrospective-review-of-initial-bisphosphonate-infusion-in-an-inpatient-vs-outpatient-setting-for-bisphosphonate-na%C3%A3-ve-patients
#16
Rose M Kreikemeier, Heather Gosnell, Lisa M Halbur, Eric T Rush
BACKGROUND: The purpose of this study was to evaluate the safety and convenience of initial bisphosphonate infusion therapy in inpatient and outpatient settings for patients with low bone mineral density. METHODS: All data were collected from retrospective chart reviews of heterogeneous groups of patients. Abnormal findings prior to the infusion and side effects during the infusion were documented. Patients were contacted following the infusion to discuss post-infusion adverse events...
September 16, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28917003/effects-of-obesity-and-diabetes-on-rate-of-bone-density-loss
#17
W D Leslie, S N Morin, S R Majumdar, L M Lix
In this large registry-based study, women with diabetes had marginally greater bone mineral density (BMD) loss at the femoral neck but not at other measurement sites, whereas obesity was not associated with greater BMD loss. Our data do not support the hypothesis that rapid BMD loss explains the increased fracture risk associated with type 2 diabetes and obesity observed in prior studies. INTRODUCTION: Type 2 diabetes and obesity are associated with higher bone mineral density (BMD) which may be less protective against fracture than previously assumed...
September 15, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28916963/effects-of-different-irrigation-practices-using-treated-wastewater-on-tomato-yields-quality-water-productivity-and-soil-and-fruit-mineral-contents
#18
Azize Dogan Demir, Ustun Sahin
Wastewater use in agricultural irrigation is becoming a common practice in order to meet the rising water demands in arid and semi-arid regions. The study was conducted to determine the effects of the full (FI), deficit (DI), and partial root-zone drying (PRD) irrigation practices using treated municipal wastewater (TWW) and freshwater (FW) on tomato yield, water use, fruit quality, and soil and fruit heavy metal concentrations. The TWW significantly increased marketable yield compared to the FW, as well as decreased water consumption...
September 15, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28916937/the-conversion-of-exposures-due-to-radon-into-the-effective-dose-the-epidemiological-approach
#19
T R Beck
The risks and dose conversion coefficients for residential and occupational exposures due to radon were determined with applying the epidemiological risk models to ICRP representative populations. The dose conversion coefficient for residential radon was estimated with a value of 1.6 mSv year(-1) per 100 Bq m(-3) (3.6 mSv per WLM), which is significantly lower than the corresponding value derived from the biokinetic and dosimetric models. The dose conversion coefficient for occupational exposures with applying the risk models for miners was estimated with a value of 14 mSv per WLM, which is in good accordance with the results of the dosimetric models...
September 15, 2017: Radiation and Environmental Biophysics
https://www.readbyqxmd.com/read/28916840/a-novel-col1a2-c-propeptide-cleavage-site-mutation-causing-high-bone-mass-osteogenesis-imperfecta-with-a-regional-distribution-pattern
#20
T Rolvien, U Kornak, J Stürznickel, T Schinke, M Amling, S Mundlos, R Oheim
Osteogenesis imperfecta (OI) is typically characterized by low bone mass and increased bone fragility caused by heterozygous mutations in the type I procollagen genes (COL1A1/COL1A2). We report two cases of a 56-year-old woman and her 80-year-old mother who suffered from multiple vertebral and non-vertebral fractures with onset in early childhood. A full osteologic assessment including dual-energy X-ray absorptiometry (DXA), high-resolution peripheral quantitative computed tomography (HR-pQCT), and serum analyses pointed to a high bone mineral density (BMD) in the hip (DXA Z-score + 3...
September 15, 2017: Osteoporosis International
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