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https://www.readbyqxmd.com/read/29346681/optimal-number-and-sizes-of-the-doses-in-fractionated-radiotherapy-according-to-the-lq-model
#1
C Bruni, F Conte, F Papa, C Sinisgalli
We address a non-linear programming problem to find the optimal scheme of dose fractionation in cancer radiotherapy. Using the LQ model to represent the response to radiation of tumour and normal tissues, we formulate a constrained non-linear optimization problem in terms of the variables number and sizes of the dose fractions. Quadratic constraints are imposed to guarantee that the damages to the early and late responding normal tissues do not exceed assigned tolerable levels. Linear constraints are set to limit the size of the daily doses...
January 15, 2018: Mathematical Medicine and Biology: a Journal of the IMA
https://www.readbyqxmd.com/read/29346490/composition-architecture-and-functional-implications-of-the-connective-tissue-network-of-the-extraocular-muscles
#2
Linda K McLoon, André Vicente, Krysta R Fitzpatrick, Mona Lindström, Fatima Pedrosa Domellöf
Purpose: We examined the pattern and extent of connective tissue distribution in the extraocular muscles (EOMs) and determined the ability of the interconnected connective tissues to disseminate force laterally. Methods: Human EOMs were examined for collagens I, III, IV, and VI; fibronectin; laminin; and elastin using immunohistochemistry. Connective tissue distribution was examined with scanning electron microscopy. Rabbit EOMs were examined for levels of force transmission longitudinally and transversely using in vitro force assessment...
January 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29346442/comparative-metabolic-ecology-of-tropical-herbivorous-echinoids-on-a-coral-reef
#3
Levi S Lewis, Jennifer E Smith, Yoan Eynaud
BACKGROUND: The metabolic rate of consumers is a key driver of ecosystem dynamics. On coral reefs, herbivorous echinoids consume fleshy algae, facilitating the growth of reef-building calcified organisms; however, little is known about differences among species in their metabolic and functional ecology. Here, we used log-linear (log-log) regression models to examine the allometric scaling of mass and routine metabolic rate for five common herbivorous echinoids on a Hawaiian coral reef: Echinothrix calamaris, E...
2018: PloS One
https://www.readbyqxmd.com/read/29346429/the-farnesoid-x-receptor-agonist-obeticholic-acid-upregulates-biliary-excretion-of-asymmetric-dimethylarginine-via-mate-1-during-hepatic-ischemia-reperfusion-injury
#4
Andrea Ferrigno, Laura Giuseppina Di Pasqua, Clarissa Berardo, Veronica Siciliano, Vittoria Rizzo, Luciano Adorini, Plinio Richelmi, Mariapia Vairetti
BACKGROUND: We previously showed that increased asymmetric dimethylarginine (ADMA) biliary excretion occurs during hepatic ischemia/reperfusion (I/R), prompting us to study the effects of the farnesoid X receptor (FXR) agonist obeticholic acid (OCA) on bile, serum and tissue levels of ADMA after I/R. MATERIAL AND METHODS: Male Wistar rats were orally administered 10mg/kg/day of OCA or vehicle for 5 days and were subjected to 60 min partial hepatic ischemia or sham-operated...
2018: PloS One
https://www.readbyqxmd.com/read/29346369/the-rise-of-neglected-tropical-diseases-in-the-new-texas
#5
REVIEW
Peter J Hotez
Within the last five years, the State of Texas has experienced either transmission or outbreaks of Ebola, chikungunya, West Nile, and Zika virus infections. Autochthonous transmission of neglected parasitic and bacterial diseases has also become increasingly reported. The rise of such emerging and neglected tropical diseases (NTDs) has not occurred by accident but instead reflects rapidly evolving changes and shifts in a "new" Texas beset by modern and globalizing forces that include rapid expansions in population together with urbanization and human migrations, altered transportation patterns, climate change, steeply declining vaccination rates, and a new paradigm of poverty known as "blue marble health...
January 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29346347/cd103-cd11b-mucosal-classical-dendritic-cells-initiate-long-term-switched-antibody-responses-to-flagellin
#6
A Flores-Langarica, K Müller Luda, E K Persson, C N Cook, S Bobat, J L Marshall, M W Dahlgren, K Hägerbrand, K M Toellner, M D Goodall, D R Withers, I R Henderson, B Johansson Lindbom, A F Cunningham, W W Agace
Antibody responses induced at mucosal and nonmucosal sites demonstrate a significant level of autonomy. Here, we demonstrate a key role for mucosal interferon regulatory factor-4 (IRF4)-dependent CD103+CD11b+ (DP), classical dendritic cells (cDCs) in the induction of T-dependent immunoglobulin G (IgG) and immunoglobulin A (IgA) responses in the mesenteric lymph node (MLN) following systemic immunization with soluble flagellin (sFliC). In contrast, IRF8-dependent CD103+CD11b- (SP) are not required for these responses...
December 20, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/29346340/disparities-in-preconception-health-indicators-%C3%A2-behavioral-risk-factor-surveillance-system-2013-2015-and-pregnancy-risk-assessment-monitoring-system-2013-2014
#7
Cheryl Robbins, Sheree L Boulet, Isabel Morgan, Denise V D'Angelo, Lauren B Zapata, Brian Morrow, Andrea Sharma, Charlan D Kroelinger
PROBLEM/CONDITION: Preconception health is a broad term that encompasses the overall health of nonpregnant women during their reproductive years (defined here as aged 18-44 years). Improvement of both birth outcomes and the woman's health occurs when preconception health is optimized. Improving preconception health before and between pregnancies is critical for reducing maternal and infant mortality and pregnancy-related complications. The National Preconception Health and Health Care Initiative's Surveillance and Research work group suggests ten prioritized indicators that states can use to monitor programs or activities for improving the preconception health status of women of reproductive age...
January 19, 2018: MMWR. Surveillance Summaries: Morbidity and Mortality Weekly Report. Surveillance Summaries
https://www.readbyqxmd.com/read/29346234/a-qualitative-study-of-multidisciplinary-providers-experiences-with-the-transfer-process-for-injured-children-and-ideas-for-improvement
#8
Marcie Gawel, Beth Emerson, John S Giuliano, Alana Rosenberg, Karl E Minges, Shelli Feder, Pina Violano, Patricia Morrell, Judy Petersen, Emily Christison-Lagay, Marc Auerbach
OBJECTIVE: Most injured children initially present to a community hospital, and many will require transfer to a regional pediatric trauma center. The purpose of this study was 1) to explore multidisciplinary providers' experiences with the process of transferring injured children and 2) to describe proposed ideas for process improvement. METHODS: This qualitative study involved 26 semistructured interviews. Subjects were recruited from 6 community hospital emergency departments and the trauma and transport teams of a level I pediatric trauma center in New Haven, Conn...
January 16, 2018: Pediatric Emergency Care
https://www.readbyqxmd.com/read/29346097/change-detection-in-heterogenous-remote-sensing-images-via-homogeneous-pixel-transformation
#9
Zhunga Liu, Gang Li, Gregoire Mercier, You He, Quan Pan
The change detection in heterogeneous remote sensing images remains an important and open problem for damage assessment. We propose a new change detection method for heterogeneous images (i.e., SAR and optical images) based on homogeneous pixel transformation (HPT). HPT transfers one image from its original feature space (e.g., gray space) to another space (e.g., spectral space) in pixel-level to make the pre-event and post-event images represented in a common space for the convenience of change detection. HPT consists of two operations, i...
April 2018: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/29346006/public-health-education-teaching-epidemiology-in-high-school-classrooms
#10
Emily D'Agostino
Epidemiology instruction has expanded at the undergraduate level in part because it increases student critical thinking and scientific literacy, promotes students' perception of public health as both practical and relevant, and empowers students as independent, lifelong learners. Why then are more high schools not adopting epidemiology as a course requirement for students? Although prior iterations of high school epidemiology courses are noteworthy for incorporating active and participatory learning, embedding them into existing and continually shifting curricula is challenging and time-consuming, especially for teachers not trained in the field...
January 18, 2018: American Journal of Public Health
https://www.readbyqxmd.com/read/29345595/hospital-management-of-severe-hypertriglyceridemia-in-children
#11
Ambika Ashraf, Badhma Valaiyapathi
Severe hypertriglyceridemia (HTG), i.e., triglyceride levels exceeding 1000 mg/dL, is one of the established causes of acute pancreatitis and severe abdominal pain. There are no established pediatric guidelines for treatment of children and adolescents with severe HTG. Management often includes hospital admission, fasting followed by fat free diet until the triglyceride (TG) levels are below 1000 mg/dL. Insulin infusion lowers TG levels in patients, especially in those with diabetes. Plasmapheresis is a limited option due to its restricted availability and scarcity of studies on its efficacy and safety in children...
January 16, 2018: Current Pediatric Reviews
https://www.readbyqxmd.com/read/29345520/correlates-of-physical-activity-among-middle-aged-and-older-adults-with-hazardous-drinking-habits-in-six-low-and-middle-income-countries
#12
Davy Vancampfort, Brendon Stubbs, Mats Hallgren, Andreas Lundin, James Mugisha, Ai Koyanagi
We investigated physical activity (PA) correlates among middle-aged and older adults (aged ≥50 years) with hazardous drinking patterns in six low-and-middle-income countries (LMICs). Cross-sectional data were analyzed from the World Health Organization's Study on Global Ageing and Adult Health. Hazardous drinking was defined as consuming >7 (females) or >14 (males) standard drinks per week. Participants were dichotomized into low (i.e. not meeting 150 minutes of moderate PA / week) and moderate-to-high physically active groups...
January 18, 2018: Journal of Aging and Physical Activity
https://www.readbyqxmd.com/read/29345500/effects-of-l-arginine-supplementation-on-leukogram-inflammatory-bowel-infiltrates-and-immunoglobulins-with-5-fu-use-in-rats
#13
Bianca D Balmant, Eloisa O N Araújo, Denise Yabuki, Amanda B Novais, Sandra C Genaro, Cecilia B Laposy, Paulo F I Goiozo, Marcelo G M Chacur, Rogério Giuffrida, Luis S L S Reis
This study evaluated the effects of L-arginine supplementation on blood parameters, kidney and liver function, immunoglobulins and noninflammatory infiltrates in the small intestines of rats subjected to chemotherapy with 5-fluorouracil (5-FU). Thirty-two Wistar rats were randomly distributed into 4 groups (8 rats/group): an untreated control group, and test groups receiving one dose of 5-FU (G5-FU group), one dose of 5-FU and 295 mg L-arginine/day (GArg295 group) or one dose of 5-FU and 458 mg L-arginine/day (GArg458 group)...
January 18, 2018: Nutrition and Cancer
https://www.readbyqxmd.com/read/29345476/adapting-a-parenting-intervention-for-parents-aging-out-of-the-child-welfare-system-a-systematic-approach-to-expand-the-reach-of-an-evidence-based-intervention
#14
Kendal Holtrop, Angela I Canto, Lisa Schelbe, Lenore M McWey, Melissa Radey, Jordan E Montgomery
Parents aging out of the child welfare system face a constellation of unique risk factors that threaten the well-being of themselves and their children. Although parenting interventions are an important resource for providing much-needed services to parents aging out, there is currently a lack of evidence-based parenting interventions that address the unique needs of this population. The purpose of this project was to systematically adapt an evidence-based parenting intervention for parents aging out. An established adaptation framework was used to guide this process, and acceptability and feasibility outcomes were evaluated as part of a pilot study of the adapted intervention...
January 18, 2018: American Journal of Orthopsychiatry
https://www.readbyqxmd.com/read/29345400/fludrocortisone-a-treatment-for-tubulopathy-post-paediatric-renal-transplantation-a-national-paediatric-nephrology-unit-experience
#15
S R Ali, I Shaheen, D Young, I Ramage, H Maxwell, D A Hughes, D Athavale, M G Shaikh
Calcineurin inhibitors post-renal transplantation are recognized to cause tubulopathies in the form of hyponatremia, hyperkalemia, and acidosis. Sodium supplementation may be required, increasing medication burden and potentially resulting in poor compliance. Fludrocortisone has been beneficial in addressing tubulopathies in adult studies, with limited paediatric data available. A retrospective review of data from an electronic renal database from December 2014 to January 2016 was carried out. Forty-seven post-transplant patients were reviewed with 23 (49%) patients on sodium chloride or bicarbonate...
January 18, 2018: Pediatric Transplantation
https://www.readbyqxmd.com/read/29345396/performance-rumen-fermentation-and-blood-metabolites-of-dairy-calves-fed-starter-mixtures-supplemented-with-herbal-plants-essential-oils-or-monensin
#16
M Akbarian-Tefaghi, E Ghasemi, M Khorvash
This study evaluated the supplementation effects of three herbal plants (thyme [THY], eucalyptus [EUC] and celery [CEL]), a commercial phytogenic additive ‎containing essential oils (PFA-EO, Digestarom® P.E.P.) and monensin (MON) in calf starter on performance, rumen fermentation and blood metabolites during pre- (days 3-55) and post-weaning (days 56-70). Sixty-six Holstein dairy calves (3 days of age, 41.2 ± 3 kg of BW) were allocated to one of six starters supplemented with: (i) no additives (CON), (ii) MON (30 mg/kg), (iii) THY (23 g/kg), (iv) CEL (23 g/kg), (v) EUC (23 g/kg) and (vi) PFA-EO (3 g/kg)...
January 18, 2018: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/29345374/ship-negatively-regulates-type-ii-immune-responses-in-mast-cells-and-macrophages
#17
REVIEW
Peter Dobranowski, Laura M Sly
SHIP is a hematopoietic-specific lipid phosphatase that dephosphorylates PI3K-generated PI(3,4,5)-trisphosphate. SHIP removes this second messenger from the cell membrane blunting PI3K activity in immune cells. Thus, SHIP negatively regulates mast cell activation downstream of multiple receptors. SHIP has been referred to as the "gatekeeper" of mast cell degranulation as loss of SHIP dramatically increases degranulation or permits degranulation in response to normally inert stimuli. SHIP also negatively regulates Mϕ activation, including both pro-inflammatory cytokine production downstream of pattern recognition receptors, and alternative Mϕ activation by the type II cytokines, IL-4, and IL-13...
January 17, 2018: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/29345347/interferons-and-beyond-induction-of-antiretroviral-restriction-factors
#18
REVIEW
Dominik Hotter, Frank Kirchhoff
Antiviral restriction factors are structurally and functionally diverse cellular proteins that play a key role in the first line of defense against viral pathogens. Although many cell types constitutively express restriction factors at low levels, their induction in response to viral exposure and replication is often required for potent control and repulse of the invading pathogens. It is well established that type I IFNs efficiently induce antiviral restriction factors. Accumulating evidence suggests that other types of IFN, as well as specific cytokines, such as IL-27, and other activators of the cell are also capable of enhancing the expression of restriction factors and hence to establish an antiviral cellular state...
December 15, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/29345318/retrospective-study-on-midfacial-advancement-in-syndromic-craniosynostosis-case-series
#19
Márcia Pereira Guaita, Maristela Pereira, Vera Lúcia Nocchi Cardim, Flávia Gonçalves, Sérgio Allegrini Júnior
AIMS: The aim of this study was to evaluate elastic distraction surgical procedures performed on patients with syndromic craniosynostosis using cephalometric analyses. METHODS: Eleven patients who underwent surgical midfacial advancement were divided into three groups: G1 - monobloc frontofacial; G2 - Le Fort III; and G3 - high-level Le Fort I. The cephalometric analyses were manually created through cephalometric radiographs of each patient: T1 - preoperative; T2 - 6 months postoperatively; and T3 - 12 months postoperatively...
January 18, 2018: Special Care in Dentistry
https://www.readbyqxmd.com/read/29345292/preparation-and-characterization-of-the-antibody-recognizing-amacr-inside-its-catalytic-center
#20
Boris V Popov, Gleb I Sutula, Nikolay S Petrov, Ximing J Yang
Alpha-methylacyl-CoA racemase (AMACR) catalyzes the β-oxidation of fatty acids and is overexpressed in carcinomas in various organs, while its inactivation results in the inhibition of cancer growth. In the present study, we prepared and characterized 20 different mouse monoclonal antibodies against human AMACR. In the course of biopanning of a phage peptide commercial library against in-house prepared 6H9 and 2A5, and commercial 13H4 antibodies, 10 phage mimotopes recognized by each type of the antibody were selected...
February 2018: International Journal of Oncology
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