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https://www.readbyqxmd.com/read/29080754/bovine-chronic-besnoitiosis-in-a-calf-characterization-of-a-novel-b-besnoiti-isolate-from-an-unusual-case-report
#1
C Diezma-Díaz, A Jiménez-Meléndez, M Fernández, D Gutiérrez-Expósito, P García-Lunar, L M Ortega-Mora, J A Pérez-Salas, J Blanco-Murcia, I Ferre, G Álvarez-García
Bovine besnoitiosis, caused by the apicomplexan Besnoitia besnoiti, is a chronic and debilitating disease characterized by cutaneous and systemic manifestations that primarily affects adult beef cattle. Previous studies have reported that clinical besnoitiosisis is rare in calves. However, we isolated B. besnoiti from a chronically infected calf for the first time. The identity of the Besnoitia species was determined after parasite isolation and molecular genotyping. According to the results obtained in vitro the new isolate, named as Bb-Spain3, was characterized in a reproducible in vitro model and was categorized as a low invader and low prolific isolate with a slower lytic cycle compared to Bb-Spain 1 isolate...
November 30, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/29032595/born-at-the-right-time-a-conceptual-framework-linking-reproduction-development-and-settlement-in-reef-fish
#2
J S Shima, E G Noonburg, S E Swearer, S H Alonzo, C W Osenberg
Parents are expected to make decisions about reproductive timing and investment that maximize their own fitness, even if this does not maximize the fitness of each individual offspring. When offspring survival is uncertain, selection typically favors iteroparity, which means that offspring born at some times can be disadvantaged, while others get lucky. The eventual fate of offspring may be further modified by their own decisions. Are fates of offspring set by birthdates (i.e., determined by parents), or can offspring improve upon the cards they've been dealt? If so, do we see adaptive plasticity in the developmental timing of offspring? We evaluate these questions for a coral reef fish (the sixbar wrasse, Thalassoma hardwicke) that is characterized by extreme iteroparity and flexible larval development...
October 14, 2017: Ecology
https://www.readbyqxmd.com/read/29020114/how-annual-course-of-photoperiod-shapes-seasonal-behavior-of-diploid-and-triploid-oysters-crassostrea-gigas
#3
Laura Payton, Mohamedou Sow, Jean-Charles Massabuau, Pierre Ciret, Damien Tran
In this work, we study if ploidy (i.e. number of copies of chromosomes) in the oyster Crassostrea gigas may introduce differences in behavior and in its synchronization by the annual photoperiod. To answer to the question about the effect of the seasonal course of the photoperiod on the behavior of C. gigas according to its ploidy, we quantified valve activity by HFNI valvometry in situ for 1 year in both diploid and triploid oysters. Chronobiological analyses of daily, tidal and lunar rhythms were performed according the annual change of the photoperiod...
2017: PloS One
https://www.readbyqxmd.com/read/28993497/marine-biorhythms-bridging-chronobiology-and-ecology
#4
Martin Bulla, Thomas Oudman, Allert I Bijleveld, Theunis Piersma, Charalambos P Kyriacou
Marine organisms adapt to complex temporal environments that include daily, tidal, semi-lunar, lunar and seasonal cycles. However, our understanding of marine biological rhythms and their underlying molecular basis is mainly confined to a few model organisms in rather simplistic laboratory settings. Here, we use new empirical data and recent examples of marine biorhythms to highlight how field ecologists and laboratory chronobiologists can complement each other's efforts. First, with continuous tracking of intertidal shorebirds in the field, we reveal individual differences in tidal and circadian foraging rhythms...
November 19, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28870250/moon-phases-and-moon-signs-do-not-influence-morbidity-mortality-and-long-term-survival-after-living-donor-kidney-transplantation
#5
A Kleespies, M Mikhailov, P N Khalil, S Pratschke, A Khandoga, M Stangl, W D Illner, M K Angele, K W Jauch, M Guba, J Werner, M Rentsch
BACKGROUND: Approximately 11% of the German population are convinced that certain moon phases and moon signs may impact their health and the onset and clinical course of diseases. Before elective surgery, a considerable number of patients look to optimize the timing of the procedure based on the lunar cycle. Especially patients awaiting living donor kidney transplantation (LDKT) commonly look for an adjustment of the date of transplantation according to the moon calendar. This study therefore investigated the perioperative and long-term outcome of LDKT dependent on moon phases and zodiac signs...
September 4, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28841578/psychiatric-presentations-during-all-4-phases-of-the-lunar-cycle
#6
Omar J Francis, Bryan J Kopke, Anthony J Affatato, Robert W Jarski
Context • Anecdotal evidence concerning a relationship between human illnesses and a full moon is frequently claimed by as many as 81% of mental health workers. Previous scientific investigations have studied only the full-moon phase and its possible effect on psychiatric presentations. However, information is limited about all 4 phases of the lunar cycle and their effects on different types of psychiatric disorders. Objective • This study primarily intended to evaluate the number of psychiatric presentations to a hospital's emergency department across all 4 phases of the lunar cycle...
July 2017: Advances in Mind-body Medicine
https://www.readbyqxmd.com/read/28808559/reproductive-cycles-in-tropical-intertidal-gastropods-are-timed-around-tidal-amplitude-cycles
#7
Rachel Collin, Kecia Kerr, Gina Contolini, Isis Ochoa
Reproduction in iteroparous marine organisms is often timed with abiotic cycles and may follow lunar, tidal amplitude, or daily cycles. Among intertidal marine invertebrates, decapods are well known to time larval release to coincide with large amplitude nighttime tides, which minimizes the risk of predation. Such bimonthly cycles have been reported for few other intertidal invertebrates. We documented the reproduction of 6 gastropod species from Panama to determine whether they demonstrate reproductive cycles, whether these cycles follow a 2-week cycle, and whether cycles are timed so that larval release occurs during large amplitude tides...
August 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28711467/retrospective-study-of-jellyfish-envenomation-in-emergency-wards-in-guadeloupe-between-2010-and-2016-when-to-diagnose-irukandji-syndrome
#8
Djoudi Bouyer-Monot, Stéphane Pelczar, Serge Ferracci, Denis Boucaud-Maitre
BACKGROUND: In Guadeloupe (French West Indies), many marine envenomation cases by jellyfish are observed. Some of them might induce an Irukandji syndrome (IS). The aim of this study was to analyse the clinical features of IS from the envenomation cases in the two public hospitals in Guadeloupe, and to compare them to non-IS stings. METHODS: All jellyfish envenomation cases between the 1st of January 2010 and the 1st of September 2016, from the emergencies data-base, have been extracted...
July 13, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28659604/long-term-monitoring-of-dolphin-biosonar-activity-in-deep-pelagic-waters-of-the-mediterranean-sea
#9
Francesco Caruso, Giuseppe Alonge, Giorgio Bellia, Emilio De Domenico, Rosario Grammauta, Giuseppina Larosa, Salvatore Mazzola, Giorgio Riccobene, Gianni Pavan, Elena Papale, Carmelo Pellegrino, Sara Pulvirenti, Virginia Sciacca, Francesco Simeone, Fabrizio Speziale, Salvatore Viola, Giuseppa Buscaino
Dolphins emit short ultrasonic pulses (clicks) to acquire information about the surrounding environment, prey and habitat features. We investigated Delphinidae activity over multiple temporal scales through the detection of their echolocation clicks, using long-term Passive Acoustic Monitoring (PAM). The Istituto Nazionale di Fisica Nucleare operates multidisciplinary seafloor observatories in a deep area of the Central Mediterranean Sea. The Ocean noise Detection Experiment collected data offshore the Gulf of Catania from January 2005 to November 2006, allowing the study of temporal patterns of dolphin activity in this deep pelagic zone for the first time...
June 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28630482/circadian-and-circatidal-clocks-control-the-mechanism-of-semilunar-foraging-behaviour
#10
James F Cheeseman, Rachel M Fewster, Michael M Walker
How animals precisely time behaviour over the lunar cycle is a decades-old mystery. Experiments on diverse species show this behaviour to be endogenous and under clock control but the mechanism has remained elusive. We present new experimental and analytical techniques to test the hypotheses for the semilunar clock and show that the rhythm of foraging behaviour in the intertidal isopod, Scyphax ornatus, can be precisely shifted by manipulating the lengths of the light/dark and tidal cycles. Using light T-cycles (Tcd) the resultant semilunar beat period undergoes shifts from 14...
June 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28594864/consistency-in-the-supply-of-larval-fishes-among-coral-reefs-in-french-polynesia
#11
Marc Besson, Camille Gache, Rohan M Brooker, Rakamaly Madi Moussa, Viliame Pita Waqalevu, Moana LeRohellec, Vincent Jaouen, Kévin Peyrusse, Cécile Berthe, Frédéric Bertucci, Hugo Jacob, Christophe Brié, Bruno Wan, René Galzin, David Lecchini
For marine fishes with a bipartite life cycle, pelagic larval dispersal can shape the distribution, connectivity, composition and resilience of adult populations. Numerous studies of larval dispersal, and associated settlement and recruitment processes, have examined the relationship between population connectivity and oceanographic features. However, relatively little is known about spatial and temporal variation in the abundance of larvae settling among different reefs and the extent to which the species assemblage of larvae settling at one location is reflective of the assemblage in neighbouring areas...
2017: PloS One
https://www.readbyqxmd.com/read/28553258/an-overview-of-monthly-rhythms-and-clocks
#12
REVIEW
Florian Raible, Hiroki Takekata, Kristin Tessmar-Raible
Organisms have evolved to cope with geophysical cycles of different period lengths. In this review, we focus on the adaptations of animals to the lunar cycle, specifically, on the occurrence of biological rhythms with monthly (circalunar) or semi-monthly (circasemilunar) period lengths. Systematic experimental investigation, starting in the early twentieth century, has allowed scientists to distinguish between mythological belief and scientific facts concerning the influence of the lunar cycle on animals. These studies revealed that marine animals of various taxa exhibit circalunar or circasemilunar reproductive rhythms...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28525979/the-association-between-lunar-phase-and-intracranial-aneurysm-rupture-myth-or-reality-own-data-and-systematic-review
#13
Adomas Bunevicius, Agne Gendvilaite, Vytenis Pranas Deltuva, Arimantas Tamasauskas
BACKGROUND: It is a common belief in medical community that lunar phases have an impact on human health. A growing body of evidence indicates that lunar phases can predict the risk to develop acute neurological and vascular disorders. The goal of present report was to present our institution data and to perform systematic review of studies examining the association of intracranial aneurysm rupture with moon phases. METHODS: We identified all patients admitted to our department for ruptured intracranial aneurysms in a period between November, 2011 and December, 2014...
May 19, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28483869/no-phenotypic-plasticity-in-nest-site-selection-in-response-to-extreme-flooding-events
#14
Liam D Bailey, Bruno J Ens, Christiaan Both, Dik Heg, Kees Oosterbeek, Martijn van de Pol
Phenotypic plasticity is a crucial mechanism for responding to changes in climatic means, yet we know little about its role in responding to extreme climatic events (ECEs). ECEs may lack the reliable cues necessary for phenotypic plasticity to evolve; however, this has not been empirically tested. We investigated whether behavioural plasticity in nest-site selection allows a long-lived shorebird (Haematopus ostralegus) to respond to flooding. We collected longitudinal nest elevation data on individuals over two decades, during which time flooding events have become increasingly frequent...
June 19, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28469170/the-diet-of-a-nocturnal-pelagic-predator-the-bulwer-s-petrel-across-the-lunar-cycle
#15
S Waap, W O C Symondson, J P Granadeiro, H Alonso, C Serra-Gonçalves, M P Dias, P Catry
The lunar cycle is believed to strongly influence the vertical distribution of many oceanic taxa, with implications for the foraging behaviour of nocturnal marine predators. Most studies to date testing lunar effects on foraging have focused on predator activity at-sea, with some birds and marine mammals demonstrating contrasting behavioural patterns, depending on the lunar-phase. However, to date no study has focused on how the lunar cycle might actually affect predator-prey interactions in the upper layers of the ocean...
May 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28467676/impacts-of-temperature-and-lunar-day-on-gene-expression-profiles-during-a-monthly-reproductive-cycle-in-the-brooding-coral-pocillopora-damicornis
#16
Camerron M Crowder, Eli Meyer, Tung-Yung Fan, Virginia M Weis
Reproductive timing in brooding corals has been correlated to temperature and lunar irradiance, but the mechanisms by which corals transduce these environmental variables into molecular signals are unknown. To gain insight into these processes, global gene expression profiles in the coral Pocillopora damicornis were examined (via RNA-Seq) across lunar phases and between temperature treatments, during a monthly planulation cycle. The interaction of temperature and lunar day together had the largest influence on gene expression...
August 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28418218/regulation-of-salt-marsh-mosquito-populations-by-the-18-6-yr-lunar-nodal-cycle
#17
Ilia Rochlin, James T Morris
The 18.6-yr lunar-nodal cycle drives changes in tidal amplitude globally, affecting coastal habitat formation, species and communities inhabiting rocky shores, and salt marsh vegetation. However, the cycle's influence on salt marsh fauna lacked sufficient long-term data for testing its effect. We circumvented this problem by using salt marsh mosquito records obtained over a period of over four decades in two estuaries in the northeastern USA. Salt marsh mosquito habitat is near the highest tide level where the impact of the nodal cycle on flood frequency is greatest...
August 2017: Ecology
https://www.readbyqxmd.com/read/28418034/light-and-circadian-controlled-genes-respond-to-a-broad-light-spectrum-in-puffer-fish-derived-fugu-eye-cells
#18
Keiko Okano, Shoichi Ozawa, Hayao Sato, Sawa Kodachi, Masaharu Ito, Toshiaki Miyadai, Akihiro Takemura, Toshiyuki Okano
Some cell lines retain intrinsic phototransduction pathways to control the expression of light-regulated genes such as the circadian clock gene. Here we investigated the photosensitivity of a Fugu eye, a cell line established from the eye of Takifugu rubripes, to examine whether such a photosensitive nature is present. Microarray analysis identified 15 genes that showed blue light-dependent change at the transcript level. We investigated temporal profiles of the light-induced genes, as well as Cry and Per, under light-dark, constant light (LL), and constant dark (DD) conditions by quantitative RT-PCR...
April 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28374651/relationship-between-lunar-cycle-and-haemorrhagic-complication-rate-in-surgery
#19
Edoardo Raposio, Giorgia Caruana, Pierluigi Santi, Ferdinando Cafiero
BACKGROUND: The aim of this study was to evaluate a possible relationship between lunar cycles and haemorrhagic complication rate in surgery. MATERIALS AND METHODS: The possible relationship between moon phases and surgical outcome was tested by evaluating the haemorrhagic complication rate for 18,760 patients who underwent surgery between January 2001 and December 2008 at the National Institute for Cancer Research in Genoa. A total of 103 lunar phases were considered using Chi-square (χ(2)) test analysis, and patients were allocated a surgery date...
April 4, 2017: Acta Chirurgica Belgica
https://www.readbyqxmd.com/read/28258604/the-effect-of-lunisolar-tidal-acceleration-on-stem-elongation-growth-nutations-and-leaf-movements-in-peppermint-mentha%C3%A2-%C3%A3-%C3%A2-piperita-l
#20
U Zajączkowska, P W Barlow
Orbital movement of the Moon generates a system of gravitational fields that periodically alter the gravitational force on Earth. This lunar tidal acceleration (Etide) is known to act as an external environmental factor affecting many growth and developmental phenomena in plants. Our study focused on the lunar tidal influence on stem elongation growth, nutations and leaf movements of peppermint. Plants were continuously recorded with time-lapse photography under constant illumination as well in constant illumination following 5 days of alternating dark-light cycles...
March 3, 2017: Plant Biology
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