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https://www.readbyqxmd.com/read/29054106/age-of-diagnosis-incidence-and-prevalence-of-recurrent-respiratory-papillomatosis-a-south-african-perspective
#1
R Y Seedat, R Schall
OBJECTIVES: To determine the distribution of the age of onset of recurrent respiratory papillomatosis (RRP) and to determine the incidence and prevalence of RRP in both adults and children in the Free State province of South Africa in order to provide data from a population in sub-Saharan African. DESIGN: Retrospective record review. PARTICIPANTS: All patients with recurrent respiratory papillomatosis in the Free State province of South Africa between 2011 and 2015...
October 20, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/29053973/duration-of-moderate-to-vigorous-daily-activity-is-negatively-associated-with-slow-walking-speed-independently-from-step-counts-in-elderly-women-aged-75-years-or-over-a-cross-sectional-study
#2
Takuji Adachi, Yuji Kono, Kotaro Iwatsu, Yuko Shimizu, Sumio Yamada
OBJECTIVES: This study aimed 1) to examine whether objectively measured duration of moderate to vigorous physical activity (MVPA) was associated with slow walking speed, independent from step counts, in elderly women aged 75 or over (old-old) and 2) to determine a possible cut-off value for duration of MVPA related to slow walking speed. METHODS: Participants were 350 community-dwelling old-old women. Slow walking speed was defined as usual walking speed <1.0m/s...
October 12, 2017: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/29053969/pebp1-wardens-ferroptosis-by-enabling-lipoxygenase-generation-of-lipid-death-signals
#3
Sally E Wenzel, Yulia Y Tyurina, Jinming Zhao, Claudette M St Croix, Haider H Dar, Gaowei Mao, Vladimir A Tyurin, Tamil S Anthonymuthu, Alexandr A Kapralov, Andrew A Amoscato, Karolina Mikulska-Ruminska, Indira H Shrivastava, Elizabeth M Kenny, Qin Yang, Joel C Rosenbaum, Louis J Sparvero, David R Emlet, Xiaoyan Wen, Yoshinori Minami, Feng Qu, Simon C Watkins, Theodore R Holman, Andrew P VanDemark, John A Kellum, Ivet Bahar, Hülya Bayır, Valerian E Kagan
Ferroptosis is a form of programmed cell death that is pathogenic to several acute and chronic diseases and executed via oxygenation of polyunsaturated phosphatidylethanolamines (PE) by 15-lipoxygenases (15-LO) that normally use free polyunsaturated fatty acids as substrates. Mechanisms of the altered 15-LO substrate specificity are enigmatic. We sought a common ferroptosis regulator for 15LO. We discovered that PEBP1, a scaffold protein inhibitor of protein kinase cascades, complexes with two 15LO isoforms, 15LO1 and 15LO2, and changes their substrate competence to generate hydroperoxy-PE...
October 19, 2017: Cell
https://www.readbyqxmd.com/read/29053956/assembly-of-the-whip-trim14-ppp6c-mitochondrial-complex-promotes-rig-i-mediated-antiviral-signaling
#4
Peng Tan, Lian He, Jun Cui, Chen Qian, Xin Cao, Meng Lin, Qingyuan Zhu, Yinyin Li, Changsheng Xing, Xiao Yu, Helen Y Wang, Rong-Fu Wang
Mitochondrial antiviral signaling platform protein (MAVS) acts as a central hub for RIG-I receptor proximal signal propagation. However, key components in the assembly of the MAVS mitochondrial platform that promote RIG-I mitochondrial localization and optimal activation are still largely undefined. Employing pooled RNAi and yeast two-hybrid screenings, we report that the mitochondrial adaptor protein tripartite motif (TRIM)14 provides a docking platform for the assembly of the mitochondrial signaling complex required for maximal activation of RIG-I-mediated signaling, consisting of WHIP and protein phosphatase PPP6C...
October 19, 2017: Molecular Cell
https://www.readbyqxmd.com/read/29053920/turn-on-fluorene-push-pull-probes-with-high-brightness-and-photostability-for-visualizing-lipid-order-in-biomembranes
#5
Janah Shaya, Mayeul Collot, Frédéric Benailly, Najiba Mahmoud, Yves Mély, Benoît Y Michel, Andrey S Klymchenko, Alain Burger
The rational design of environment-sensitive dyes with superior properties is critical for elucidating the fundamental biological processes and understanding the biophysical behavior of cell membranes. In this study, a novel group of fluorene-based push-pull probes was developed for imaging membrane lipids. The design of these fluorogenic conjugates is based on a propioloyl linker to preserve the required spectroscopic features of the core dye. This versatile linker allowed the introduction of a polar deoxyribosyl head, a lipophilic chain, and an amphiphilic/anchoring group to tune the cell membrane binding and internalization...
October 20, 2017: ACS Chemical Biology
https://www.readbyqxmd.com/read/29053899/peptidergic-nerve-fibers-in-the-urethra-morphological-and-neurochemical-characteristics-in-female-mice-of-reproductive-age
#6
Christine M Barry, Esther Ji, Harman Sharma, Pauline Yap, Nicholas J Spencer, Dusan Matusica, Rainer V Haberberger
BACKGROUND: Peptidergic nerve fibers provide important contributions to urethral function. Urethral innervation of female mice is not well documented. AIMS: To determine the distribution and projection sites of nerve fibers immunoreactive for vasoactive intestinal peptide (VIP), calcitonin gene-related peptide (CGRP), substance P (SP), and neuropeptide Y (NPY) in the urethra of wild-type control mice and compare innervation characteristics between the proximal and distal urethra of young nullipara and older multipara mice...
October 20, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/29053876/blood-hematological-and-biochemical-constituents-antioxidant-enzymes-immunity-and-lymphoid-organs-of-broiler-chicks-supplemented-with-propolis-bee-pollen-and-mannan-oligosaccharides-continuously-or-intermittently
#7
Y A Attia, H Al-Khalaifah, M S Ibrahim, A E Abd Al-Hamid, M A Al-Harthi, A El-Naggar
This study investigate the effect of bee pollen (BP) and/or propolis (Pro) as an alternative to Mannan oligosaccharides (Bio-MOS, a hydrolyzed yeast with natural and artificial flavors Alltech Inc) when given continuously or intermittently on antioxidant enzymes, immunity, weight and morphology of lymphoid organs of broilers. Thus, 324 unsexed one-day-old Arbor Acres broilers were randomly distributed into nine treatment groups, each replicated 6 times of 6 birds per replicate. The chicks were kept in wire cages and fed the same basal diet and were submitted to the following treatments: control without supplementation (control) or supplemented with BP at 300 mg, Pro at 300 mg, BP+Pro at 300 mg each and Bio-MOS at 0...
October 10, 2017: Poultry Science
https://www.readbyqxmd.com/read/29053872/resveratrol-alleviates-heat-stress-induced-impairment-of-intestinal-morphology-microflora-and-barrier-integrity-in-broilers
#8
C Zhang, X H Zhao, L Yang, X Y Chen, R S Jiang, S H Jin, Z Y Geng
This study was to investigate the effect of resveratrol on intestinal morphology, microfloras, and barrier integrity of broilers subjected to heat stress. Two-hundred-seventy 21-day-old Cobb male broilers were randomly allocated to 3 treatment groups, each of which included 6 replicates with 15 birds per replicate. The 3 treatment groups were as follows: the control group, in which birds were exposed to thermoneutral condition (22 ± 1°C), and the heat stress group and heat stress + resveratrol (400 mg/kg) group, in which birds were exposed to cyclic heat stress (33 ± 1°C for 10 h/d from 0800 to 1800 h and 22 ± 1°C for the remaining time...
October 10, 2017: Poultry Science
https://www.readbyqxmd.com/read/29053871/cellular-and-morphological-characterization-of-blastoderms-from-freshly-laid-broiler-eggs
#9
N Pokhrel, E Ben-Tal Cohen, O Genin, D Sela-Donenfeld, Y Cinnamon
The pioneering study of Eyal-Giladi and Kochav (EG&K; Eyal-Giladi and Kochav, 1976) on the early developmental stages-from fertilization, through oviposition, to the gastrulation process-set the standard for characterizing chicken embryos, and has been used in numerous studies over the years. During uterine development, the chicken embryo undergoes dramatic changes, extremely rapid cell cycles, massive cell death, and axial determination processes. However, once the egg is laid, the temperature drops and the embryo enters into a diapause-like state...
October 5, 2017: Poultry Science
https://www.readbyqxmd.com/read/29053855/rare-gabra3-variants-are-associated-with-epileptic-seizures-encephalopathy-and-dysmorphic-features
#10
Cristina Elena Niturad, Dorit Lev, Vera M Kalscheuer, Agnieszka Charzewska, Julian Schubert, Tally Lerman-Sagie, Hester Y Kroes, Renske Oegema, Monica Traverso, Nicola Specchio, Maria Lassota, Jamel Chelly, Odeya Bennett-Back, Nirit Carmi, Tal Koffler-Brill, Michele Iacomino, Marina Trivisano, Giuseppe Capovilla, Pasquale Striano, Magdalena Nawara, Sylwia Rzonca, Ute Fischer, Melanie Bienek, Corinna Jensen, Hao Hu, Holger Thiele, Janine Altmüller, Roland Krause, Patrick May, Felicitas Becker, Rudi Balling, Saskia Biskup, Stefan A Haas, Peter Nürnberg, Koen L I van Gassen, Holger Lerche, Federico Zara, Snezana Maljevic, Esther Leshinsky-Silver
Genetic epilepsies are caused by mutations in a range of different genes, many of them encoding ion channels, receptors or transporters. While the number of detected variants and genes increased dramatically in the recent years, pleiotropic effects have also been recognized, revealing that clinical syndromes with various degrees of severity arise from a single gene, a single mutation, or from different mutations showing similar functional defects. Accordingly, several genes coding for GABAA receptor subunits have been linked to a spectrum of benign to severe epileptic disorders and it was shown that a loss of function presents the major correlated pathomechanism...
October 7, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29053847/effect-of-low-incubation-temperature-and-low-ambient-temperature-until-21-days-of-age-on-performance-and-body-temperature-in-fast-growing-chickens
#11
D Nyuiadzi, A Travel, B Méda, C Berri, L A Guilloteau, V Coustham, Y Wang, J K Tona, A Collin
Thermal manipulation during embryogenesis was previously reported to decrease the occurrence of ascites and to potentially improve cold tolerance of broilers. The objective of our study was to explore the effects of the interaction of cold incubation temperatures and cool ambient temperatures until 21 d of age on performance and body temperature. Ross 308 eggs were incubated either under control conditions I0 (37.6°C) or with cyclic cold stimulations I1 (6 h/d at 36.6°C from d 10 to 18 of incubation) or with 2 cold stimulations I2 (30 min at 15°C) at d 18 and 19 of incubation...
October 10, 2017: Poultry Science
https://www.readbyqxmd.com/read/29053841/meat-quality-traits-and-proteome-profile-of-woody-broiler-breast-pectoralis-major-meat
#12
K Cai, W Shao, X Chen, Y L Campbell, M N Nair, S P Suman, C M Beach, M C Guyton, M W Schilling
Woody breast meat has recently become prevalent in the broiler industry in both the United States and European Union. Recent publications have described the meat quality characteristics of woody breast meat as having hardened areas and pale ridge-like bulges at both the caudal and cranial regions of the breast. The present study investigated the meat quality (pH, color, cooking loss, and shear force) and protein quality characteristics (protein and salt-soluble protein content) in woody breast meat as compared to normal breast meat...
October 5, 2017: Poultry Science
https://www.readbyqxmd.com/read/29053833/clinical-pathological-and-functional-characterization-of-riboflavin-responsive-neuropathy
#13
Andreea Manole, Zane Jaunmuktane, Iain Hargreaves, Marthe H R Ludtmann, Vincenzo Salpietro, Oscar D Bello, Simon Pope, Amelie Pandraud, Alejandro Horga, Renata S Scalco, Abi Li, Balasubramaniem Ashokkumar, Charles M Lourenço, Simon Heales, Rita Horvath, Patrick F Chinnery, Camilo Toro, Andrew B Singleton, Thomas S Jacques, Andrey Y Abramov, Francesco Muntoni, Michael G Hanna, Mary M Reilly, Tamas Revesz, Dimitri M Kullmann, James E C Jepson, Henry Houlden
Brown-Vialetto-Van Laere syndrome represents a phenotypic spectrum of motor, sensory, and cranial nerve neuropathy, often with ataxia, optic atrophy and respiratory problems leading to ventilator-dependence. Loss-of-function mutations in two riboflavin transporter genes, SLC52A2 and SLC52A3, have recently been linked to Brown-Vialetto-Van Laere syndrome. However, the genetic frequency, neuropathology and downstream consequences of riboflavin transporter mutations are unclear. By screening a large cohort of 132 patients with early-onset severe sensory, motor and cranial nerve neuropathy we confirmed the strong genetic link between riboflavin transporter mutations and Brown-Vialetto-Van Laere syndrome, identifying 22 pathogenic mutations in SLC52A2 and SLC52A3, 14 of which were novel...
September 26, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29053831/effect-of-dietary-fiber-levels-on-performance-gizzard-development-intestinal-morphology-and-nutrient-utilization-in-meat-ducks-from-1-to-21-days-of-age
#14
H Y Han, K Y Zhang, X M Ding, S P Bai, Y H Luo, J P Wang, Q F Zeng
The objective of this experiment was to determine the effects of dietary fiber levels on growth performance, gizzard development, intestinal morphology, and nutrient utilization in Cherry Valley meat ducks. In total, 720 1-day-old ducklings were fed with starter diets (120 ducklings, 8 pens of 15 ducklings, on each diet) containing 6 levels of crude fiber (CF, 1.46, 3.09, 4.15, 6.18, 7.52, and 9.03%, based on analysis) for 21 d. Then, on d 22, ducks fed all of the starter diets were transferred to a grower diet (containing 4% CF) to examine the residual effect of starter dietary fiber levels until 35 d...
October 10, 2017: Poultry Science
https://www.readbyqxmd.com/read/29053823/effect-of-maternally-derived-antibody-on-sequential-infection-with-highly-virulent-bursal-disease-virus-in-newly-hatched-broilers
#15
W J Jeon, H J Lee, I S Roh, Y S Yoon, J H Kim, K S Choi
Maternally derived antibodies (MDAs) are important for protection against very virulent infectious bursal disease virus (vvIBDV). In this study, 5-day-old commercial broilers with non-uniform MDA titers (with a coefficient of variation of 50%) were challenged with vvIBDV and given free contact with each other during a 2-week period. The chicks were assigned to four MDA-titer subgroups, GI-1 (very low MDA), GI-2 (low MDA), GI-3 (medium MDA), and GI-4 (high MDA). Transient symptoms of infection were observed in 35...
October 5, 2017: Poultry Science
https://www.readbyqxmd.com/read/29053738/neotropical-peatland-methane-emissions-along-a-vegetation-and-biogeochemical-gradient
#16
R Scott Winton, Neal Flanagan, Curtis J Richardson
Tropical wetlands are thought to be the most important source of interannual variability in atmospheric methane (CH4) concentrations, yet sparse data prevents them from being incorporated into Earth system models. This problem is particularly pronounced in the neotropics where bottom-up models based on water table depth are incongruent with top-down inversion models suggesting unaccounted sinks or sources of CH4. The newly documented vast areas of peatlands in the Amazon basin may account for an important unrecognized CH4 source, but the hydrologic and biogeochemical controls of CH4 dynamics from these systems remain poorly understood...
2017: PloS One
https://www.readbyqxmd.com/read/29053729/the-influence-of-the-selection-of-macronutrients-coupled-with-dietary-energy-density-on-the-performance-of-broiler-chickens
#17
Sonia Y Liu, Peter V Chrystal, Aaron J Cowieson, Ha H Truong, Amy F Moss, Peter H Selle
A total of 360 male Ross 308 broiler chickens were used in a feeding study to assess the influence of macronutrients and energy density on feed intakes from 10 to 31 days post-hatch. The study comprised ten dietary treatments from five dietary combinations and two feeding approaches: sequential and choice feeding. The study included eight experimental diets and each dietary combination was made from three experimental diets. Choice fed birds selected between three diets in separate feed trays at the same time; whereas the three diets were offered to sequentially fed birds on an alternate basis during the experimental period...
2017: PloS One
https://www.readbyqxmd.com/read/29053726/prevalence-of-deleterious-germline-variants-in-risk-genes-including-brca1-2-in-consecutive-ovarian-cancer-patients-ago-tr-1
#18
Philipp Harter, Jan Hauke, Florian Heitz, Alexander Reuss, Stefan Kommoss, Frederik Marmé, André Heimbach, Katharina Prieske, Lisa Richters, Alexander Burges, Guido Neidhardt, Nikolaus de Gregorio, Ahmed El-Balat, Felix Hilpert, Werner Meier, Rainer Kimmig, Karin Kast, Jalid Sehouli, Klaus Baumann, Christian Jackisch, Tjoung-Won Park-Simon, Lars Hanker, Sandra Kröber, Jacobus Pfisterer, Heidrun Gevensleben, Andreas Schnelzer, Dimo Dietrich, Tanja Neunhöffer, Mathias Krockenberger, Sara Y Brucker, Peter Nürnberg, Holger Thiele, Janine Altmüller, Josefin Lamla, Gabriele Elser, Andreas du Bois, Eric Hahnen, Rita Schmutzler
BACKGROUND: Identification of families at risk for ovarian cancer offers the opportunity to consider prophylactic surgery thus reducing ovarian cancer mortality. So far, identification of potentially affected families in Germany was solely performed via family history and numbers of affected family members with breast or ovarian cancer. However, neither the prevalence of deleterious variants in BRCA1/2 in ovarian cancer in Germany nor the reliability of family history as trigger for genetic counselling has ever been evaluated...
2017: PloS One
https://www.readbyqxmd.com/read/29053721/xx-disorder-of-sex-development-is-associated-with-an-insertion-on-chromosome-9-and-downregulation-of-rspo1-in-dogs-canis-lupus-familiaris
#19
Vicki N Meyers-Wallen, Adam R Boyko, Charles G Danko, Jennifer K Grenier, Jason G Mezey, Jessica J Hayward, Laura M Shannon, Chuan Gao, Afrah Shafquat, Edward J Rice, Shashikant Pujar, Stefanie Eggers, Thomas Ohnesorg, Andrew H Sinclair
Remarkable progress has been achieved in understanding the mechanisms controlling sex determination, yet the cause for many Disorders of Sex Development (DSD) remains unknown. Of particular interest is a rare XX DSD subtype in which individuals are negative for SRY, the testis determining factor on the Y chromosome, yet develop testes or ovotestes, and both of these phenotypes occur in the same family. This is a naturally occurring disorder in humans (Homo sapiens) and dogs (C. familiaris). Phenotypes in the canine XX DSD model are strikingly similar to those of the human XX DSD subtype...
2017: PloS One
https://www.readbyqxmd.com/read/29053660/the-assessment-of-surgical-and-non-surgical-treatment-of-stage-ii-medication-related-osteonecrosis-of-the-jaw
#20
T Eguchi, I Kanai, A Basugi, Y Miyata, M Inoue, Y Hamada
BACKGROUND: Non-surgical treatment has generally been recommended for stage II medication-related osteonecrosis of the jaw (MRONJ) in preference to surgery. However, non-surgical treatment is not empirically effective. The aim of this study was to evaluate whether surgical or non-surgical treatment leads to better outcomes for stage II MRONJ. MATERIAL AND METHODS: In this retrospective study, surgery was performed in a total of 28 patients while 24 patients underwent non-surgical treatment...
October 20, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
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