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https://www.readbyqxmd.com/read/29782214/physiologic-changes-in-a-small-animal-model-for-neonatal-minimally-invasive-surgery
#1
Steffi Mayer, Nicole Peukert, Richard Gnatzy, Jan-Hendrik Gosemann, Martin Lacher, Anne Suttkus
BACKGROUND: Minimally invasive surgery (MIS) has gained increasing importance in neonatal surgery but the effects on neonatal physiology remain unclear. We aimed to characterize the impact of capnoperitoneum on physiologic parameters in a small animal model for neonatal MIS. MATERIAL AND METHODS: Twenty-four 10-day-old Sprague Dawley rats underwent inhalative anesthesia (1% isoflurane in 100% O2 250 mL/minutes) and were allowed to breathe spontaneously. CO2 was insufflated into the abdominal cavity for 1 hour via a 24G cannula...
May 21, 2018: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/29781420/species-specific-aggregation-pheromones-contribute-to-coexistence-in-two-closely-related-thrips-species
#2
X Li, S Geng, Z Zhang, J Zhang, W Li, J Huang, W Lin, Y Bei, Y Lu
Pheromones play an important role in mediating interspecific interactions in insects. In an insect community, pheromones can reveal information about the senders, which could be used by other members of the food web (competitor, natural enemies, etc.) to their own advantage. The aggregation pheromones of two closely related thrips species, Frankliniella occidentalis and Frankliniella intonsa, have been identified with the same major compounds, (R)-lavandulyl acetate and neryl (S)-2-methylbutanoate, but in different ratios...
May 21, 2018: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29779880/in-vitro-comparison-of-acyclovir-ganciclovir-and-cidofovir-against-equid-alphaherpesvirus-3-and-evaluation-of-their-efficacy-against-six-field-isolates
#3
María A Vissani, Osvaldo Zabal, María S Tordoya, Viviana Parreño, Etienne Thiry, María Barrandeguy
Equid alphaherpesvirus 3 (EHV3) is the etiological agent of equine coital exanthema (ECE), which is a venereal, highly contagious disease, characterized by the formation of papules, vesicles, pustules and ulcers on the external genitalia of mares and stallions. EHV3 remains in a latent state after a successful infection and there are latently infected animals in which the virus is reactivated and generally re-excreted subclinically. There are no available vaccines for this condition and prevention is based on the clinical examination of mares prior to mating, which allows to segregate those showing clinical signs...
May 17, 2018: Revista Argentina de Microbiología
https://www.readbyqxmd.com/read/29778539/expressional-and-functional-comparisons-of-two-general-odorant-binding-proteins-in-agrotis-ipsilon
#4
Guang-Zhen Huang, Jing-Tao Liu, Jing-Jiang Zhou, Qian Wang, Jian-Zhen Dong, Yong-Jun Zhang, Xian-Chun Li, Jing Li, Shao-Hua Gu
Insect general odorant binding proteins (GOBPs) have been long thought to bind and transport host plant volatiles to the olfactory receptors on the dendrite membrane of the olfactory neurons. Recent studies indicate that they can also bind female sex pheromones. In present study, two GOBP genes, AipsGOBP1 and AipsGOBP2 were cloned from the adult antennae of Agrotis ipsilon. Tissue expression profiles indicated that both of them are antennae-specific and more abundant in the female antennae than in the male antennae...
May 17, 2018: Insect Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29778496/ascorbic-acid-co-administered-with-rosuvastatin-reduces-reproductive-impairment-in-the-male-offspring-from-male-rats-exposed-to-the-statin-at-pre-puberty
#5
Gabriel Adan Araújo Leite, Thamiris Moreira Figueiredo, Marina Trevizan Guerra, Cibele Dos Santos Borges, Fábio Henrique Fernandes, Janete Aparecida Anselmo-Franci, Wilma De Grava Kempinas
Obesity during childhood and adolescence is closely related to dysfunctions on lipid profile in children. Rosuvastatin is a statin that decreases serum total cholesterol. Ascorbic acid is an important antioxidant compound for male reproduction. Pre-pubertal male rats were distributed into six experimental groups that received saline solution 0.9% (vehicle), 3 or 10 mg/kg/day of rosuvastatin, 150 mg/day of ascorbic acid, or 3 or 10 mg/kg/day of rosuvastatin co-administered with 150 mg/day of ascorbic acid by gavage from post-natal day (PND)23 until PND53...
May 17, 2018: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29777263/folate-treatment-of-pregnant-rat-dams-abolishes-metabolic-effects-in-female-offspring-induced-by-a-paternal-pre-conception-unhealthy-diet
#6
Jian Li, Yong-Ping Lu, Oleg Tsuprykov, Ahmed A Hasan, Christoph Reichetzeder, Mei Tian, Xiao Li Zhang, Qin Zhang, Guo-Ying Sun, Jingli Guo, Mohamed M S Gaballa, Xiao-Ning Peng, Ge Lin, Berthold Hocher
AIMS/HYPOTHESIS: Paternal high-fat diet prior to mating programmes impaired glucose tolerance in female offspring. We examined whether the metabolic consequences in offspring could be abolished by folate treatment of either the male rats before mating or the corresponding female rats during pregnancy. METHODS: Male F0 rats were fed either control diet or high-fat, high-sucrose and high-salt diet (HFSSD), with or without folate, before mating. Male rats were mated with control-diet-fed dams...
May 18, 2018: Diabetologia
https://www.readbyqxmd.com/read/29777232/maternal-overnutrition-programs-epigenetic-changes-in-the-regulatory-regions-of-hypothalamic-pomc-in-the-offspring-of-rats
#7
Thanuja Gali Ramamoorthy, Tiffany-Jayne Allen, Alison Davies, Erika Harno, Charlotte Sefton, Christopher Murgatroyd, Anne White
BACKGROUND AND OBJECTIVE: Maternal overnutrition has been implicated in affecting the offspring by programming metabolic disorders such as obesity and diabetes, by mechanisms that are not clearly understood. This study aimed to determine the long-term impact of maternal high-fat (HF) diet feeding on epigenetic changes in the offspring's hypothalamic Pomc gene, coding a key factor in the control of energy balance. Further, it aimed to study the additional effects of postnatal overnutrition on epigenetic programming by maternal nutrition...
May 17, 2018: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/29777168/the-genetic-basis-of-female-pheromone-differences-between-drosophila-melanogaster-and-d-simulans
#8
Jessica A Pardy, Howard D Rundle, Mark A Bernards, Amanda J Moehring
Chemical signals are one means by which many insect species communicate. Differences in the combination of surface chemicals called cuticular hydrocarbons (CHCs) can influence mating behavior and affect reproductive isolation between species. Genes influencing three CHC compounds have been identified in Drosophila melanogaster. However, the genetic basis of other CHC compounds, whether these genes affect species differences in CHCs, and the genes' resulting effect on interspecies mating, remains unknown. We used fine-scale deficiency mapping of the third chromosome to identify 43 genomic regions that influence production of CHCs in both D...
May 19, 2018: Heredity
https://www.readbyqxmd.com/read/29776614/characterisation-of-peripheral-blood-mononuclear-cell-populations-in-periparturient-dairy-cows-that-develop-metritis
#9
John J Bromfield, Meghan M Watt, Sossi M Iacovides
Bacterial contamination of the uterus following calving is ubiquitous in the dairy cow, 40% of cows develop postpartum uterine infection, including metritis. While predisposing factors like twinning and dystocia are associated with metritis, it is unclear why some cows remain healthy following calving and others develop uterine infection, negatively impacting animal health, milk production and economic return. Here, we profiled peripheral blood mononuclear cells of cows before calving and during postpartum metritis...
June 2018: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/29775925/exposure-to-tris-1-3-dichloro-2-propyl-phosphate-for-two-generations-decreases-fecundity-of-zebrafish-at-environmentally-relevant-concentrations
#10
Yongkang Zhang, Meng Li, Shuying Li, Qiangwei Wang, Guonian Zhu, Guanyong Su, Robert J Letcher, Chunsheng Liu
Previous studies reported that exposure to environmentally relevant concentrations of TDCIPP significantly decreased the number of cumulative eggs in zebrafish, but effects on the quantity of eggs and sperms remained unknown. Therefore, in this study, effects of TDCIPP on yolk diameter, surface morphology of eggs, sperm density and total motility were evaluated. First generation (F0) zebrafish larvae (Danio rerio) were exposed to 0, 50, 500 or 5000 ng/L tris(1,3-dichloro-2-propyl) phosphate (TDCIPP) from 14 days post fertilization (dpf) to 120 dpf...
May 14, 2018: Aquatic Toxicology
https://www.readbyqxmd.com/read/29775210/the-effect-of-simulated-space-radiation-on-the-n-glycosylation-of-human-immunoglobulin-g1
#11
Mate Szarka, Szabolcs Szilasi, Boglarka Donczo, Daniel Sarkozy, Istvan Rajta, Andras Guttman
On a roundtrip to Mars, astronauts are expectedly exposed to an approximate amount of radiation that exceeds the lifetime limits on Earth. This elevated radiation dose is mainly due to Galactic Cosmic Rays (GCR) and Solar Particle Events (SPE). Specific patterns of the N-glycosylation of human immunoglobulins have already been associated with various ailments such as autoimmune diseases, malignant transformation, chronic inflammation and ageing. The focus of our work was to investigate the effect of low-energy proton irradiation on the IgG N-glycosylation profile with the goal if disease associated changes could be detected during space travel and not altered by space radiation...
May 18, 2018: Electrophoresis
https://www.readbyqxmd.com/read/29774945/the-relationship-between-post-mating-reproductive-isolation-and-reinforcement-in-phlox
#12
Sevan S Suni, Robin Hopkins
The process of speciation involves the accumulation of reproductive isolation (RI) between diverging lineages. Selection can favor increased RI via the process of reinforcement, whereby costs to hybridization impose selection for increased prezygotic RI. Reinforcement results in phenotypic divergence within at least one taxon, as a result of costly hybridization between sympatric taxa. The strength of selection driving reinforcement is determined by the cost of hybridization and the frequency of hybridization...
May 18, 2018: Evolution; International Journal of Organic Evolution
https://www.readbyqxmd.com/read/29773848/identification-and-tissue-distribution-of-chemosensory-protein-and-odorant-binding-protein-genes-in-tropidothorax-elegans-distant-hemiptera-lygaeidae
#13
Yue-Qin Song, Hui-Zhong Sun, Jun Du
Tropidothorax elegans Distant (Hemiptera: Lygaeidae) is an insect pest that inflicts damage to vegetables and flowering plants across China. The olfactory system regulates insect behavior, such as feeding, mating, oviposition and predator avoidance. Odorant-binding proteins (OBPs) and the chemosensory proteins (CSPs) are two groups of small soluble proteins that initiate olfactory signal transduction in insects. In this study, we generated antennal transcriptomes of male and female T. elegans, and identified 19 putative OBP (14 classic OBPs and five plus-C OBPs) and seven CSP genes...
May 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29773098/-polydatin-inhibits-cell-proliferation-and-expressions-of-inflammatory-cytokines-in-thp-1-cells-induced-by-ox-ldl-via-up-regulating-sirt1
#14
Yi Ma, Yunjun Ruan, Yuyan Wang, Saizhu Wu
Objective To investigate the effects of polydatin on cell proliferation and cytokine expression in THP-1 monocyte-derived macrophages (MDMs) induced by oxidized low-density lipoprotein (ox-LDL), and the possible mechanisms. Methods MDMs were divided into the control group (only treated with ordinary culture medium), ox-LDL group (treated wtih 80 μmol/L ox-LDL for 24 hours), polydatin treatment group (treated with 100 μmol/L polydatin for 2 hours prior to the treatment with 80 μmol/L ox-LDL for 24 hours) and EX-527 treatment group (treated with 10 μmol/L SIRT1 inhibitor EX-527 for 2 hours prior to the treatment with ox-LDL and polydatin)...
March 2018: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/29772497/the-role-of-the-vasopressin-system-and-dopamine-d1-receptors-in-the-effects-of-social-housing-condition-on-morphine-reward
#15
M L Shawn Bates, Rebeca S Hofford, Michael A Emery, Paul J Wellman, Shoshana Eitan
BACKGROUND: The association with opioid-abusing individuals or even the perception of opioid abuse by peers are risk factors for the initiation and escalation of abuse. Similarly, we demonstrated that morphine-treated animals housed with only morphine-treated animals (referred to as morphine only) acquire morphine conditioned place-preference (CPP) more readily than morphine-treated animals housed with drug-naïve animals (referred to as morphine cage-mates). However, the molecular mechanisms underlying these effects are still elusive...
April 22, 2018: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/29772203/the-dynamical-regime-of-sensory-cortex-stable-dynamics-around-a-single-stimulus-tuned-attractor-account-for-patterns-of-noise-variability
#16
Guillaume Hennequin, Yashar Ahmadian, Daniel B Rubin, Máté Lengyel, Kenneth D Miller
Correlated variability in cortical activity is ubiquitously quenched following stimulus onset, in a stimulus-dependent manner. These modulations have been attributed to circuit dynamics involving either multiple stable states ("attractors") or chaotic activity. Here we show that a qualitatively different dynamical regime, involving fluctuations about a single, stimulus-driven attractor in a loosely balanced excitatory-inhibitory network (the stochastic "stabilized supralinear network"), best explains these modulations...
May 16, 2018: Neuron
https://www.readbyqxmd.com/read/29771959/molecular-evidence-of-hybridization-in-sympatric-populations-of-the-enantia-jethys-complex-lepidoptera-pieridae
#17
Jovana M Jasso-Martínez, Salima Machkour-M'Rabet, Roger Vila, Rosario Rodríguez-Arnaiz, América Nitxin Castañeda-Sortibrán
Hybridization events are frequently demonstrated in natural butterfly populations. One interesting butterfly complex species is the Enantia jethys complex that has been studied for over a century; many debates exist regarding the species composition of this complex. Currently, three species that live sympatrically in the Gulf slope of Mexico (Enantia jethys, E. mazai, and E. albania) are recognized in this complex (based on morphological and molecular studies). Where these species live in sympatry, some cases of interspecific mating have been observed, suggesting hybridization events...
2018: PloS One
https://www.readbyqxmd.com/read/29771192/fine-scale-population-genetic-structure-and-within-tree-distribution-of-mating-types-of-venturia-effusa-cause-of-pecan-scab-in-the-u-s-a
#18
Clive Bock, Carolyn Young, Katherine Stevenson, Nikki Charlton
Scab (caused by Venturia effusa) is the major disease of pecan in the southeastern U.S.A. There is no information available on the fine scale population genetic diversity, or the occurrence of clonal types at small spatial scales that provides insight into inoculum sources and dispersal mechanisms, and potential opportunity for sexual reproduction. To investigate fine scale genetic diversity, 4 trees (cv. Wichita = populations) were sampled hierarchically: within each tree canopy, 4 approximately evenly spaced terminals (subpopulations) were selected and up to 6 leaflets (sub-subpopulations) were sampled from different compound leaves on each terminal...
May 17, 2018: Phytopathology
https://www.readbyqxmd.com/read/29770906/volatile-and-contact-chemical-cues-associated-with-host-and-mate-recognition-behavior-of-sphenophorus-venatus-and-sphenophorus-parvulus-coleoptera-dryophthoridae
#19
Alexandra G Duffy, Gabriel P Hughes, Matthew D Ginzel, Douglas S Richmond
Beetles in the genus Sphenophorus Schönherr, or billbugs, potentially utilize both volatile and non-volatile behavior-modifying chemical signals. These insects are widely distributed across North America, often occurring in multi-species assemblages in grasses. However, details about their host- and mate-finding behavior are poorly understood. This study tested the hypothesis that volatile organic compounds from host-plants and conspecifics direct the dispersal behavior of hunting billbug S. venatus Say. Further, we characterized the cuticular hydrocarbon profiles of two widespread pest species, S...
May 17, 2018: Journal of Chemical Ecology
https://www.readbyqxmd.com/read/29769794/social-interactions-predict-genetic-diversification-an-experimental-manipulation-in-shorebirds
#20
Charles Cunningham, Jorge E Parra, Lucy Coals, Marcela Beltrán, Sama Zefania, Tamás Székely
Mating strategy and social behavior influence gene flow and hence affect levels of genetic differentiation and potentially speciation. Previous genetic analyses of closely related plovers Charadrius spp. found strikingly different population genetic structure in Madagascar: Kittlitz's plovers are spatially homogenous whereas white-fronted plovers have well segregated and geographically distinct populations. Here, we test the hypotheses that Kittlitz's plovers are spatially interconnected and have extensive social interactions that facilitate gene flow, whereas white-fronted plovers are spatially discrete and have limited social interactions...
May 2018: Behavioral Ecology: Official Journal of the International Society for Behavioral Ecology
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