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https://www.readbyqxmd.com/read/28215054/semiparametric-modeling-and-analysis-of-longitudinal-method-comparison-data
#1
Lasitha N Rathnayake, Pankaj K Choudhary
Studies comparing two or more methods of measuring a continuous variable are routinely conducted in biomedical disciplines with the primary goal of measuring agreement between the methods. Often, the data are collected by following a cohort of subjects over a period of time. This gives rise to longitudinal method comparison data where there is one observation trajectory for each method on every subject. It is not required that observations from all methods be available at each observation time. The multiple trajectories on the same subjects are dependent...
February 19, 2017: Statistics in Medicine
https://www.readbyqxmd.com/read/28215044/developing-caring-conversations-in-care-homes-an-appreciative-inquiry
#2
Belinda Dewar, Tamsin MacBride
Relationship-centred practice is key to delivering quality care in care homes. Evidence is strong about the centrality of human interaction in developing relationships that promote dignity and compassion. The Caring Conversations framework is a framework for delivering compassionate care based on human interactions that was developed in the acute healthcare setting. The key attributes are: be courageous, connect emotionally, be curious, consider other perspectives, collaborate, compromise and celebrate. This paper reports on a study to explore its relevance to the care home setting and the development of an educational intervention, based on the framework, to enhance development of human interaction...
February 19, 2017: Health & Social Care in the Community
https://www.readbyqxmd.com/read/28215039/impact-of-surgical-experience-on-management-and-outcome-of-pancreatic-surgery-performed-in-high-and-low-volume-centers
#3
Marco Stella, Massimiliano Bissolati, Daniele Gentile, Alessandro Arriciati
Pancreaticoduodenectomy (PD) is one of the procedures in general surgery with the highest rate of life-threatening complications. The positive impact of the volume-outcome ratio on outcomes and mortality in pancreatic surgery (PS) has led to policy-level efforts toward centralization of care for PS that is currently under evaluation by some Regional Health Services. The role of the surgeon's experience and training is still under debate. The aim of this paper is to compare the outcomes of PS by the same surgeon in a high volume (HV) and in a low volume (LV) hospital to assess whether a specific training in PS could outdo the benefits of hospital volume...
February 18, 2017: Updates in Surgery
https://www.readbyqxmd.com/read/28215038/variable-selection-and-prediction-in-biased-samples-with-censored-outcomes
#4
Ying Wu, Richard J Cook
With the increasing availability of large prospective disease registries, scientists studying the course of chronic conditions often have access to multiple data sources, with each source generated based on its own entry conditions. The different entry conditions of the various registries may be explicitly based on the response process of interest, in which case the statistical analysis must recognize the unique truncation schemes. Moreover, intermittent assessment of individuals in the registries can lead to interval-censored times of interest...
February 18, 2017: Lifetime Data Analysis
https://www.readbyqxmd.com/read/28215031/orexin-a-missing-link-between-sleep-disorders-and-heart-failure
#5
REVIEW
Stephen Pan, Carolina S Cabral, Euan A Ashley, Marco V Perez
PURPOSE OF REVIEW: Sleep disorders represent a significant comorbidity in the heart failure population, and there is mounting evidence that treatment of sleep disorders such as obstructive sleep apnea can significantly improve cardiac function. However, the link between these two disorders is still not entirely clear. RECENT FINDINGS: Recently, a novel neurohormonal pathway has been elucidated involving signaling molecules now collectively known as the orexins, which have been implicated in regulating autonomic function during sleep/wake cycles...
February 18, 2017: Current Heart Failure Reports
https://www.readbyqxmd.com/read/28215024/pharmacogenomics-of-platinum-based-chemotherapy-in-non-small-cell-lung-cancer-focusing-on-dna-repair-systems
#6
REVIEW
Yi Xiong, Bi-Yun Huang, Ji-Ye Yin
Drug therapy for non-small cell lung cancer consists mainly of platinum-based chemotherapy regimens. However, toxicity, drug resistance, and high risk of death have been seen in the clinic, which means there is a need for optimizing the use of medications. Platinum resistance could be mediated by a series of DNA repair pathways, and therefore, these pathways should be taken into account for optimizing drug using. The goal of pharmacogenomics is to elucidate genetic factors, such as DNA repair genes, which might underlie drug efficacy and effectiveness, and to improve therapeutic effects or guide personalized therapy as well...
April 2017: Medical Oncology
https://www.readbyqxmd.com/read/28215015/goose-management-schemes-to-resolve-conflicts-with-agriculture-theory-practice-and-effects
#7
Einar Eythórsson, Ingunn M Tombre, Jesper Madsen
In 2012, the four countries hosting the Svalbard population of pink-footed goose Anser brachyrhynchus along its flyway launched an International Species Management Plan for the population. One of the aims was to reduce conflicts between geese and agriculture to an acceptable level. Since 2006, Norway has offered subsidies to farmers that provide refuge areas for geese on their land. We evaluate the mid-Norwegian goose management subsidy scheme, with a view to its adjustment to prevailing ecological and socio-economic parameters...
March 2017: Ambio
https://www.readbyqxmd.com/read/28214991/efficiency-analysis-of-an-interoperable-healthcare-operations-platform
#8
Thomas F Osborne, Reese H Clark, Jason Blackowiak, Patrick J Williamson, Shannon M Werb, Benjamin W Strong
(1) Develop an enterprise platform to unify isolated information, software applications and team members. (2) Assess the efficiency of one benefit of the platform through comparative testing of employee document retrieval times. (3) Evaluate the level of satisfaction among our target audience. We developed an infrastructure to integrate information throughout our practice and make it available on a unified, secure, and remotely accessible platform. We solicited our practice for volunteers to test the new system...
April 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/28214973/a-multifunctional-alanine-rich-anti-inflammatory-peptide-bcp61-showed-potent-inhibitory-effects-by-inhibiting-both-nf-%C3%AE%C2%BAb-and-mapk-expression
#9
Yun Hee Choi, Yoon Seok Choi, Young Kyun Kim, Md Saifur Rahman, G C Pradeep, Jin Cheol Yoo, Joo-Won Suh
The purified BCP61 was reported to be a unique low-molecular-weight (MW) anti-microbial peptide because of its non-identical alanine-rich N-terminal sequence. In this study, we investigated the anti-inflammatory effects of BCP61 on induction of inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2), pro-inflammatory cytokines, nuclear factor-kappa B (NF-κB), and mitogen-activated protein kinases (MAPKs) in lipopolysaccharide (LPS)-stimulated Raw 264.7 cells. The treatment with BCP61, with varying concentrations of 10, 50, and 100 μg/mL, inhibited levels of expression of LPS-induced NF-κB and MAPKs (extracellular signal-related kinases (ERKs), c-Jun NH2-terminal kinase (JNK), and mitogen-activated protein (p38)) as well as production of pro-inflammatory mediators, such as nitric oxide (NO), prostaglandin E2 (PGE2), tumor necrosis factor-α (TNF-α), and interleukin-6 (IL-6)...
February 18, 2017: Inflammation
https://www.readbyqxmd.com/read/28214942/an-analytical-investigation-of-ozone-episodes-in-bangu-rio-de-janeiro
#10
Claudio Gabriel Pinheiro Geraldino, Eduardo Monteiro Martins, Cleyton Martins da Silva, Graciela Arbilla
This study investigated the potential factors that contribute to frequent high levels of ozone as well as ozone episodes in Bangu, one of the most critical areas in the city of Rio de Janeiro regarding ozone levels. For 74 days in a two-year period (10.3%), the national air quality standard was exceeded. For the same period, a total of 378 days (51.8%) had ozone concentrations that were between 80 and 160 µg m(-3). A statistical analysis of pollutant concentrations and meteorological data as well as a kinetic and mechanistic analysis of VOC reactivity showed that the high ozone concentrations did not seem to be closely related to local emissions but, rather, were related to pollutant transport and triggered by photochemical activity...
February 18, 2017: Bulletin of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28214929/myeloid-cells-as-a-target-for-oligonucleotide-therapeutics-turning-obstacles-into-opportunities
#11
REVIEW
Marcin Kortylewski, Dayson Moreira
Immunotherapies emerged as an alternative for cancer treatment, yet their clinical efficacies are still limited, especially in case of solid tumors. Myeloid immune cells, such as macrophages and myeloid-derived suppressor cells (MDSCs), are often hijacked by tumors and become pivotal inhibitors of antitumor immunity. Immunosuppressive functions of tumor-associated myeloid cells result from the activity of Signal Transducer and Activator of Transcription 3 (STAT3), a transcription factor with well-defined tumorigenic and tolerogenic roles in human cancers...
February 18, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28214924/characteristics-and-outcomes-of-rheumatoid-arthritis-patients-who-started-biosimilar-infliximab
#12
Yoon-Kyoung Sung, Soo-Kyung Cho, Dam Kim, Soyoung Won, Chan-Bum Choi, So-Young Bang, Seung-Jae Hong, Hyoun Ah Kim, Eun-Mi Koh, Hye-Soon Lee, Chang-Hee Suh, Dae-Hyun Yoo, Sang-Cheol Bae
To compare the characteristics of rheumatoid arthritis (RA) patients receiving either biosimilar or originator infliximab and to identify the effectiveness and safety of biosimilar infliximab in RA patients in real-world practice. RA patients who started either biosimilar or originator infliximab were selected using the prospective biologic disease-modifying anti-rheumatic drugs (DMARDs) registry: BIOlogics Pharmacoepidemiologic StudY (BIOPSY). Baseline characteristics of the two groups were compared, and short-term treatment outcomes, including DAS28-ESR and HAQ-DI scores, were compared after initiation of biosimilar or originator infliximab...
February 18, 2017: Rheumatology International
https://www.readbyqxmd.com/read/28214907/a-pilot-study-of-bacterial-regrowth-in-water-pipelines
#13
Laura Mancini, Stefania Marcheggiani, Cinzia Grasso, Cristina Romanelli, Antonio Mistretta, Marina Marranzano
Bacterial regrowth in water distribution systems results in deterioration of bacteriological quality of drinking water, as well as accelerated corrosion of the pipelines. The aim of the present study was to analyze the phenomena of colonization and bacterial regrowth in source water and in the water distribution systems of three distribution networks in the province of Catania (Sicily, Italy). The BART™ (Biological Activity Reaction Test) method was used, which is also capable of determining the potential aggressiveness of microbial species in water...
November 2016: Igiene e Sanità Pubblica
https://www.readbyqxmd.com/read/28214894/mechanical-loading-improves-tendon-bone-healing-in-a-rabbit-anterior-cruciate-ligament-reconstruction-model-by-promoting-proliferation-and-matrix-formation-of-mesenchymal-stem-cells-and-tendon-cells
#14
Fanglong Song, Dawei Jiang, Tianchen Wang, Yi Wang, Fengmei Chen, Guoxing Xu, Yifan Kang, Yinquan Zhang
BACKGROUND/AIMS: This study investigated the effect of mechanical stress on tendon-bone healing in a rabbit anterior cruciate ligament (ACL) reconstruction model as well as cell proliferation and matrix formation in co-culture of bone-marrow mesenchymal stem cells (BMSCs) and tendon cells (TCs). METHODS: The effect of continuous passive motion (CPM) therapy on tendon-bone healing in a rabbit ACL reconstruction model was evaluated by histological analysis, biomechanical testing and gene expressions at the tendon-bone interface...
February 16, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28214886/adenovirus-vector-harboring-the-hbcag-and-tripeptidyl-peptidase-ii-genes-induces-potent-cellular-immune-responses-in-vivo
#15
Quanhui Tan, Siyuan Ma, Jianjun Hu, Xiaohua Chen, Yongsheng Yu, Zhenghao Tang, Guoqin Zang
BACKGROUND: Chronic hepatitis B virus (HBV) infection is associated with a weak but specific cellular immune response of the host to HBV. Tripeptidyl peptidaseⅡ (TPPⅡ), an intracellular macromolecule and proteolytic enzyme, plays an important complementary and compensatory role for the proteasome during viral protein degradation and major histocompatibility complex class I antigen presentation by inducing a specific cellular immune response in vivo. Based on a previous study, we aimed to explore the role of MHC class I antigen presentation in vivo and the mechanisms that may be involved...
January 27, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28214879/thiamine-deprivation-produces-a-liver-atp-deficit-and-metabolic-and-genomic-effects-in-mice-findings-are-parallel-to-those-of-biotin-deficiency-and-have-implications-for-energy-disorders
#16
Alain de J Hernandez-Vazquez, Josue Andres Garcia-Sanchez, Elizabeth Moreno-Arriola, Ana Salvador-Adriano, Daniel Ortega-Cuellar, Antonio Velazquez-Arellano
Thiamine is one of several essential cofactors for ATP generation. Its deficiency, like in beriberi and in the Wernicke-Korsakoff syndrome, has been studied for many decades. However, its mechanism of action is still not completely understood at the cellular and molecular levels. Since it acts as a coenzyme for dehydrogenases of pyruvate, branched-chain keto acids, and ketoglutarate, its nutritional privation is partly a phenocopy of inborn errors of metabolism, among them maple syrup urine disease. In the present paper, we report metabolic and genomic findings in mice deprived of thiamine...
February 18, 2017: Journal of Nutrigenetics and Nutrigenomics
https://www.readbyqxmd.com/read/28214877/the-role-of-epithelial-mesenchymal-transition-in-chronic-obstructive-pulmonary-disease
#17
Jo-Maree Courtney, Patricia L Spafford
Chronic obstructive pulmonary disease (COPD) is a major cause of mortality worldwide, and there is currently no treatment that can halt the progression of the disease. Over the last decade there has been increasing interest in the idea that epithelial-mesenchymal transition (EMT) may be active in COPD. Here we review the evidence for EMT in COPD as well as the current progress being made on understanding the drivers and mechanisms involved. Finally, we discuss the potential benefits that understanding EMT may bring to the field of chronic respiratory disease...
February 20, 2017: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/28214876/the-snail-family-in-normal-and-malignant-haematopoiesis
#18
Catherine L Carmichael, Jody J Haigh
Snail family proteins are key inducers of the epithelial-mesenchymal transition (EMT), a critical process required for normal embryonic development. They have also been strongly implicated in regulating the EMT-like processes required for tumour cell invasion, migration, and metastasis. Whether these proteins also contribute to normal blood cell development, however, remains to be clearly defined. Increasing evidence supports a role for the Snail family in regulating cell survival, migration, and differentiation within the haematopoietic system, as well as potentially an oncogenic role in the malignant transformation of haematopoietic stem cells...
February 20, 2017: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/28214875/a-developmental-study-of-the-cerebellar-nucleus-in-the-catshark-a-basal-gnathostome
#19
Sol Pose-Méndez, Isabel Rodríguez-Moldes, Eva Candal, Sylvie Mazan, Ramón Anadón
The output of the cerebellar cortex is mainly released via cerebellar nuclei which vary in number and complexity among gnathostomes, extant vertebrates with a cerebellum. Cartilaginous fishes, a basal gnathostome lineage, show a conspicuous, well-organized cerebellar nucleus, unlike ray-finned fishes. To gain insight into the evolution and development of the cerebellar nucleus, we analyzed in the shark Scyliorhinus canicula (a chondrichthyan model species) the developmental expression of several genes coding for transcription factors (ScLhx5,ScLhx9,ScTbr1, and ScEn2) and the distribution of the protein calbindin, since all appear to be involved in cerebellar nuclei patterning in other gnathostomes...
February 18, 2017: Brain, Behavior and Evolution
https://www.readbyqxmd.com/read/28214871/restraint-stress-during-pregnancy-rapidly-raises-kynurenic-acid-levels-in-mouse-placenta-and-fetal-brain
#20
Francesca M Notarangelo, Robert Schwarcz
Stressful events during pregnancy adversely affect brain development and may increase the risk of psychiatric disorders later in life. Early changes in the kynurenine (KYN) pathway (KP) of tryptophan (TRP) degradation, which contains several neuroactive metabolites, including kynurenic acid (KYNA), 3-hydroxykynurenine (3-HK), and quinolinic acid (QUIN), may constitute a molecular link between prenatal stress and delayed pathological consequences. To begin testing this hypothesis experimentally, we examined the effects of a 2-h restraint stress on KP metabolism in pregnant FVB/N mice on gestational day 17...
February 18, 2017: Developmental Neuroscience
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