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https://www.readbyqxmd.com/read/28109138/adaptations-in-the-microarchitecture-and-load-distribution-of-maternal-cortical-and-trabecular-bone-in-response-to-multiple-reproductive-cycles-in-rats
#1
Chantal M J de Bakker, Allison R Altman-Singles, Yihan Li, Wei-Ju Tseng, Connie Li, X Sherry Liu
Pregnancy, lactation, and weaning result in dramatic changes in maternal calcium metabolism. In particular, the increased calcium demand during lactation causes a substantial degree of maternal bone loss. This reproductive bone loss has been suggested to be largely reversible, as multiple clinical studies have found that parity and lactation history have no adverse effect on post-menopausal fracture risk. However, the precise effects of pregnancy, lactation, and post-weaning recovery on maternal bone structure are not well understood...
January 21, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28109124/domestication-and-human-demographic-history-in-south-america
#2
S Ivan Perez, María Bárbara Postillone, Diego Rindel
OBJECTIVES: The early groups of hunter-gatherers who peopled South America faced significant ecological changes in their trophic niche for a relatively short period after the initial peopling. In particular, the incorporation of cultigens during the Holocene led to a wider trophic niche and probably to an increased carrying capacity of the environment. Here, we study the relationship between the incorporation of domestic resources during the Holocene and the demographic dynamics of human populations at a regional scale in South America...
January 21, 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28108915/microbial-changes-linked-to-the-accelerated-degradation-of-the-herbicide-atrazine-in-a-range-of-temperate-soils
#3
R L Yale, M Sapp, C J Sinclair, J W B Moir
Accelerated degradation is the increased breakdown of a pesticide upon its repeated application, which has consequences for the environmental fate of pesticides. The herbicide atrazine was repeatedly applied to soils previously untreated with s-triazines for >5 years. A single application of atrazine, at an agriculturally relevant concentration, was sufficient to induce its rapid dissipation. Soils, with a range of physico-chemical properties and agricultural histories, showed similar degradation kinetics, with the half-life of atrazine decreasing from an average of 25 days after the first application to <2 days after the second...
January 20, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28108913/religion-and-public-health-moral-tradition-as-both-problem-and-solution
#4
Michael Rozier
Despite strong religious influence in the development of medicine and medical ethics, religion has been relatively absent in the rise of preventive medicine and population health. Episodic, clinical medicine has a powerful hold on the religious imagination in health care. Nevertheless, Hebrew Scripture, elements of rabbinical teaching, and modern concepts of social justice all can be used to inspire action in health care that goes beyond clinical medicine. The Christian tradition can call upon the corporal works of mercy, virtue ethics, and Catholic social teaching, as well as the modern history Catholic sisters in the U...
January 20, 2017: Journal of Religion and Health
https://www.readbyqxmd.com/read/28108874/surviving-in-isolation-genetic-variation-bottlenecks-and-reproductive-strategies-in-the-canarian-endemic-limonium-macrophyllum-plumbaginaceae
#5
Ares Jiménez, Barbara Weigelt, Arnoldo Santos-Guerra, Juli Caujapé-Castells, José María Fernández-Palacios, Elena Conti
Oceanic archipelagos are typically rich in endemic taxa, because they offer ideal conditions for diversification and speciation in isolation. One of the most remarkable evolutionary radiations on the Canary Islands comprises the 16 species included in Limonium subsection Nobiles, all of which are subject to diverse threats, and legally protected. Since many of them are single-island endemics limited to one or a few populations, there exists a risk that a loss of genetic variation might limit their long-term survival...
January 20, 2017: Genetica
https://www.readbyqxmd.com/read/28108855/causes-of-poor-outcome-in-patients-admitted-with-good-grade-subarachnoid-haemorrhage
#6
Vladimír Beneš, Lubomír Jurák, Radim Brabec, Nina Nechanická, Miroslav Šercl, Ladislav Endrych, Pavel Buchvald, Petr Suchomel
BACKGROUND: Surgical risk in patients with unruptured aneurysms is well known. The relative impact of surgery and natural history of subarachnoid haemorrhage (SAH) on patients in good clinical condition (World Federation of Neurological Surgeons [WFNS] grades 1 and 2) is less well quantified. The aim of this study was to determine causes of poor outcome in patients admitted in good grade SAH. METHODS: A retrospective study of prospectively collected data among WFNS-1 and -2 patients: demographics, SAH and aneurysm-related data, surgical complications and outcome as assesed by the Glasgow Outcome Scale (GOS)...
January 20, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28108838/clinical-impact-of-preoperative-brain-mr-angiography-and-mr-imaging-in-candidates-for-liver-transplantation-a-propensity-score-matching-study-in-a-single-institution
#7
Mi Sun Chung, Ho Sung Kim, Young-Suk Lim, Sang-Beom Jeon, Seon-Ok Kim, Hwa Jung Kim, Shin Hwang, Seung Chai Jung, Choong Gon Choi, Sang Joon Kim
OBJECTIVES: To investigate the prevalence of cerebrovascular stenosis and white matter lesions on preoperative magnetic resonance angiography (MRA) and magnetic resonance imaging (MRI) in liver transplantation candidates. METHODS: This retrospective study included 1,460 consecutive patients with liver cirrhosis (LC) who underwent MRA with/without brain MRI for pretransplantation evaluation. These patients were matched with 5,331 controls using propensity scores, and the prevalences of significant cerebrovascular stenosis and white matter lesions were compared...
January 20, 2017: European Radiology
https://www.readbyqxmd.com/read/28108818/association-between-bone-scan-index-and-activities-of-daily-living-in-patients-with-advanced-non-small-cell-lung-cancer
#8
Ikuno Ito, Kimiteru Ito, Shinichi Takahashi, Mitsuko Horibe, Rui Karita, Chika Nishizaka, Takako Nagai, Kohei Hamada, Hiroyuki Sato, Naoko Shindo
PURPOSE: The aim of this retrospective cross-sectional study was to investigate the association between the bone scan index (BSI) and activities of daily living (ADL) in patients with advanced non-small cell lung cancer (NSCLC). METHODS: Among patients with advanced NSCLC, subjects who underwent bone scintigraphy were recruited from this study. Clinical information about patients, including the Barthel Index of ADL, was extracted from their medical charts. Variables including the age, sex, BSI, presence/absence skeletal-related events (SREs), diagnostic state (initial vs...
January 20, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28108791/-acoustic-information-in-snoring-noises
#9
C Janott, B Schuller, C Heiser
BACKGROUND: More than one third of all people snore regularly. Snoring is a common accompaniment of obstructive sleep apnea (OSA) and is often disruptive for the bed partner. OBJECTIVE: This work gives an overview of the history of and state of research on acoustic analysis of snoring for classification of OSA severity, detection of obstructive events, measurement of annoyance, and identification of the sound excitation location. MATERIALS AND METHODS: Based on these objectives, searches were conducted in the literature databases PubMed and IEEE Xplore...
January 20, 2017: HNO
https://www.readbyqxmd.com/read/28108757/degeneration-of-articular-cartilage-in-osteonecrosis-of-the-femoral-head-begins-at-the-necrotic-region-after-collapse-a-preliminary-study-using-t1-rho-mri
#10
Kazuhiko Sonoda, Goro Motomura, Satoshi Kawanami, Yukihisa Takayama, Hiroshi Honda, Takuaki Yamamoto, Yasuharu Nakashima
OBJECTIVE: The purpose of this study is to evaluate the role of collapse on the degeneration of articular cartilage in patients with osteonecrosis of the femoral head (ONFH). MATERIALS AND METHODS: Sixteen hips in 12 patients (four men, eight women; mean age, 34.8 years) with a history of systemic corticosteroid treatment were studied using T1 rho magnetic resonance imaging (MRI). Six hips had collapsed ONFH, five had non-collapsed ONFH, and five had no osteonecrosis (controls)...
January 21, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28108641/spinal-cord-stimulation-scs-with-anatomically-guided-3d-neural-targeting-shows-superior-chronic-axial-low-back-pain-relief-compared-to-traditional-scs-lumina-study
#11
Elias Veizi, Salim M Hayek, James North, T Brent Chafin, Thomas L Yearwood, Louis Raso, Robert Frey, Kevin Cairns, Anthony Berg, John Brendel, Nameer Haider, Matthew McCarty, Henry Vucetic, Alden Sherman, Lilly Chen, Nitzan Mekel-Bobrov
: BACKGROUND : The aim of this study was to determine whether spinal cord stimulation (SCS) using 3D neural targeting provided sustained overall and low back pain relief in a broad routine clinical practice population. STUDY DESIGN AND METHODS:  This was a multicenter, open-label observational study with an observational arm and retrospective analysis of a matched cohort. After IPG implantation, programming was done using a patient-specific, model-based algorithm to adjust for lead position (3D neural targeting) or previous generation software (traditional)...
January 20, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28108472/relapsed-acute-promyelocytic-leukemia-lacks-classic-leukemic-promyelocyte-morphology-and-can-create-diagnostic-challenges
#12
Vanessa J Dayton, Robert W McKenna, Sophia L Yohe, Michelle M Dolan, Elizabeth Courville, Harold Alvarez, Michael A Linden
OBJECTIVES: Although current therapies for acute promyelocytic leukemia (APL), such as all-trans retinoic acid and arsenic trioxide, usually result in remission, some patients relapse. Early recognition of relapse is critical for prompt intervention. In this study, we systematically reviewed morphologic, immunophenotypic, and cytogenetic findings in paired diagnostic and relapsed APL cases and describe and quantify the changes in blast morphology at relapse. METHODS: By electronic database search, we identified eight paired diagnostic and relapsed APL cases for which peripheral blood or bone marrow smears were available for review...
January 20, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28108466/post-glucose-load-measures-of-insulin-resistance-and-prognosis-of-nondiabetic-patients-with-ischemic-stroke
#13
Yuesong Pan, Jing Jing, Weiqi Chen, Huaguang Zheng, Qian Jia, Donghua Mi, Hao Li, Xingquan Zhao, Liping Liu, Chunxue Wang, Herbert Y Gaisano, Yan He, Yilong Wang, Yongjun Wang
BACKGROUND: Insulin resistance is associated with an increased risk of cardiovascular events in the general population. This study aimed to estimate the association between post-glucose load measures of insulin resistance and prognosis of nondiabetic patients with ischemic stroke. METHODS AND RESULTS: Data were derived from the ACROSS-China (Abnormal Glucose Regulation in Patients with Acute Stroke across China) registry. Patients with ischemic stroke without a history of diabetes mellitus were included...
January 20, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28108446/chaincleaner-improves-genome-alignment-specificity-and-sensitivity
#14
Hernando G Suarez, Bjoern E Langer, Pradnya Ladde, Michael Hiller
MOTIVATION: Accurate alignments between entire genomes are crucial for comparative genomics. However, computing sensitive and accurate genome alignments is a challenging problem, complicated by genomic rearrangements. RESULTS: Here we present a fast approach, called chainCleaner, that improves the specificity in genome alignments by accurately detecting and removing local alignments that obscure the evolutionary history of genomic rearrangements. Systematic tests on alignments between the human and other vertebrate genomes show that chainCleaner (i) improves the alignment of numerous orthologous genes, (ii) exposes alignments between exons of orthologous genes that were masked before by alignments to pseudogenes, and (iii) recovers hundreds of kilobases in local alignments that otherwise would fall below a minimum score threshold...
January 19, 2017: Bioinformatics
https://www.readbyqxmd.com/read/28108445/multi-rate-poisson-tree-processes-for-single-locus-species-delimitation-under-maximum-likelihood-and-markov-chain-monte-carlo
#15
P Kapli, S Lutteropp, J Zhang, K Kobert, P Pavlidis, A Stamatakis, T Flouri
MOTIVATION: In recent years, molecular species delimitation has become a routine approach for quantifying and classifying biodiversity. Barcoding methods are of particular importance in large-scale surveys as they promote fast species discovery and biodiversity estimates. Among those, distance-based methods are the most common choice as they scale well with large datasets; however, they are sensitive to similarity threshold parameters and they ignore evolutionary relationships. The recently introduced "Poisson Tree Processes" (PTP) method is a phylogeny-aware approach that does not rely on such thresholds...
January 19, 2017: Bioinformatics
https://www.readbyqxmd.com/read/28108441/child-with-multiple-fractures-a-rare-presentation-of-a-common-disease
#16
Filipa Dias Costa, Carla Maia, Susana Almeida, Ricardo Ferreira
Bone fractures are not uncommon in paediatric age. However, when recurrent, an underlying clinical condition must not be excluded. We describe the case of a boy aged 7 years, referred for investigation of recurrent bone fractures. Personal and family histories were unremarkable. Physical examination was normal. Almost all primary bone disorders were excluded. Additional laboratory investigations ruled out the majority of secondary causes of bone fragility. Coeliac disease (CD) serologies, however, were positive, and duodenal biopsies confirmed this diagnosis (Marsh III B)...
January 20, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28108440/autoimmune-hepatitis-and-eosinophilic-granulomatosis-with-polyangiitis-a-rare-association
#17
Saroj Lohani, Salik Nazir, Niranjan Tachamo, Pavani Pagolu
We describe a case of 40-year-old woman who presented to our hospital with symptoms of non-radiating epigastric pain for 4-5 days associated with nausea and vomiting. Her history was significant for asthma with recurrent exacerbations, polyneuropathy and recurrent sinus infections. Liver function tests revealed cholestasis. Antinuclear antibody and antismooth muscle cell antibody were positive. Liver biopsy revealed active chronic hepatitis with cholestasis. A diagnosis of autoimmune hepatitis was made. All other causes of cholestatic jaundice were ruled out...
January 20, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28108227/cerebral-blood-flow-autoregulation-is-impaired-in-schizophrenia-a-pilot-study
#18
Hsiao-Lun Ku, Jiunn-Kae Wang, Hsin-Chien Lee, Timothy Joseph Lane, I-Chao Liu, Yung-Chan Chen, Yao-Tung Lee, I-Cheng Lin, Chia-Pei Lin, Chaur-Jong Hu, Nai-Fang Chi
Patients with schizophrenia have a higher risk of cardiovascular diseases and higher mortality from them than does the general population; however, the underlying mechanism remains unclear. Impaired cerebral autoregulation is associated with cerebrovascular diseases and their mortality. Increased or decreased cerebral blood flow in different brain regions has been reported in patients with schizophrenia, which implies impaired cerebral autoregulation. This study investigated the cerebral autoregulation in 21 patients with schizophrenia and 23 age- and sex-matched healthy controls...
January 17, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28108158/evolutionary-plasticity-of-plasma-membrane-interaction-in-drepp-family-proteins
#19
Stanislav Vosolsobě, Jan Petrášek, Kateřina Schwarzerová
The plant-specific DREPP protein family comprises proteins that were shown to regulate the actin and microtubular cytoskeleton in a calcium-dependent manner. Our phylogenetic analysis showed that DREPPs first appeared in ferns and that DREPPs have a rapid and plastic evolutionary history in plants. Arabidopsis DREPP paralogues called AtMDP25/PCaP1 and AtMAP18/PCaP2 are N-myristoylated, which has been reported as a key factor in plasma membrane localization. Here we show that N-myristoylation is neither conserved nor ancestral for the DREPP family...
January 17, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28108106/do-children-just-grow-out-of-irritable-bowel-syndrome
#20
Eleonora Giannetti, Marco Maglione, Elisa Sciorio, Vincenzo Coppola, Erasmo Miele, Annamaria Staiano
OBJECTIVE: Few data exist on natural history of irritable bowel syndrome (IBS) in children; therefore we investigated symptoms evolution over time in a cohort of children with IBS. STUDY DESIGN: In this observational, single-center study, we prospectively enrolled newly diagnosed children with IBS and reassessed them after 24 months. At both time points, patients completed a symptoms questionnaire, and a score of stool consistency was obtained. The therapeutic strategy adopted was also recorded...
January 18, 2017: Journal of Pediatrics
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