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https://www.readbyqxmd.com/read/29164696/leukoderma-following-allergic-contact-dermatitis-caused-by-the-silicone-component-silprene-30a-b-in-swimming-goggles
#1
Yumiko Sakuragi, Yu Sawada, Motonobu Nakamura
No abstract text is available yet for this article.
December 2017: Contact Dermatitis
https://www.readbyqxmd.com/read/29164274/detection-and-sizing-of-ti-containing-particles-in-recreational-waters-using-single-particle-icp-ms
#2
Arjun K Venkatesan, Robert B Reed, Sungyun Lee, Xiangyu Bi, David Hanigan, Yu Yang, James F Ranville, Pierre Herckes, Paul Westerhoff
Single particle inductively coupled plasma mass spectrometry (spICP-MS) was used to detect Ti-containing particles in heavily-used bathing areas of a river (Salt River) and five swimming pools. Ti-containing particle concentrations in swimming pools ranged from 2.8 × 10(3) to 4.4 × 10(3) particles/mL and were an order of magnitude lower than those detected in the Salt River. Measurements from the Salt River showed an 80% increase in Ti-containing particle concentration over baseline concentration during peak recreational activity (at 16:00 h) in the river...
November 21, 2017: Bulletin of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/29163159/larvicidal-histopathological-efficacy-of-penicillium-daleae-against-larvae-of-culex-quinquefasciatus-and-aedes-aegypti-plus-biotoxicity-on-artemia-nauplii-a-non-target-aquatic-organism
#3
C Ragavendran, T Mariappan, Devarajan Natarajan
Mosquitoes can transmit the terrible diseases to human beings. Soil-borne fungal products act as potential source for low-cost chemicals, used for developing eco-friendly control agents against mosquito-vector borne diseases. The prime aim of study was to check the larvicidal potential of fungus mycelia (by ethyl acetate solvent) extract from Penicillium daleae (KX387370) against Culex quinquefasciatus and Aedes aegypti and to test the toxicity of brine shrimp Artemia nauplii, by observing the physiological activity...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29163065/the-lesioned-spinal-cord-is-a-new-spinal-cord-evidence-from-functional-changes-after-spinal-injury-in-lamprey
#4
REVIEW
David Parker
Finding a treatment for spinal cord injury (SCI) focuses on reconnecting the spinal cord by promoting regeneration across the lesion site. However, while regeneration is necessary for recovery, on its own it may not be sufficient. This presumably reflects the requirement for regenerated inputs to interact appropriately with the spinal cord, making sub-lesion network properties an additional influence on recovery. This review summarizes work we have done in the lamprey, a model system for SCI research. We have compared locomotor behavior (swimming) and the properties of descending inputs, locomotor networks, and sensory inputs in unlesioned animals and animals that have received complete spinal cord lesions...
2017: Frontiers in Neural Circuits
https://www.readbyqxmd.com/read/29163055/study-of-sex-differences-in-duloxetine-efficacy-for-depression-in-transgenic-mouse-models
#5
Yong Xu, Lei Ma, Wei Jiang, Yuhong Li, Gang Wang, Rena Li
Clinical evidences show sex differences in risk of developing depressive disorders as well as effect of antidepressants in depression treatment. However, whether such a sex-dependent risk of depression and efficacy of antidepressants is dependent on endogenous estrogen level remain elusive. The aim of this study is to explore the molecular mechanisms of sex differences in antidepressant duloxetine. In the present study, we used genetic knockout or overexpression estrogen-synthesizing enzyme aromatase (Ar) gene as models for endogenous estrogen deficiency and elevation endogenous estrogen, respectively, to examine the anti-depressive efficacy of duloxetine in males and females by force swimming test (FST)...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/29162638/the-relationship-between-pectoral-fin-ray-stiffness-and-swimming-behavior-in-labridae-insights-into-design-performance-and-ecology
#6
Brett R Aiello, Adam R Hardy, Chery Cherian, Aaron M Olsen, Sihyun E Ahn, Melina E Hale, Mark W Westneat
The functional capabilities of flexible, propulsive, appendages are directly influenced by their mechanical properties. The fins of fishes have undergone extraordinary evolutionary diversification in structure and function, which raises questions of how fin mechanics relate to swimming behavior. In the fish family Labridae, pectoral fin swimming behavior ranges from rowing to flapping. Rowers are more maneuverable than flappers, but flappers generate greater thrust at high speeds and achieve greater mechanical efficiency at all speeds...
November 21, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29162354/-cryptosporidiosis-a-cause-of-acute-diarrhea-a-review-and-retrospective-study-of-cases-in-rouen-university-hospital-s-pediatrics-department
#7
G Gargala, R Razakandrainibe, D Costa, D Leméteil, C Dumant Forest
Cryptosporidium is the most important diarrhea-causing protozoan parasite, with severe health consequences for very young, malnourished children living in endemic areas and for immunocompromised individuals. Cryptosporidium is widely distributed and disease transmission can occur through person-to-person or animal-to-person contact, or contaminated food or water (drinking or swimming), leading to large outbreaks. The zoonotic Cryptosporidium parvum and the anthroponotic Cryptosporidium hominis are responsible for the majority of human cases...
November 18, 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/29162144/schistosoma-mansoni-and-other-helminthes-infections-at-haike-primary-school-children-north-east-ethiopia-a-cross-sectional-study
#8
Daniel Getacher Feleke, Solomon Arega, Mulien Tekleweini, Kegnitu Kindie, Alemu Gedefie
OBJECTIVES: Schistosomiasis and soil-transmitted helminthes infections are among the widely distributed infections worldwide. In Ethiopia, parasitic helminthic infections and schistosomiasis are among the most predominant causes of outpatient morbidity. Hence there is still lack of epidemiological information in North-Eastern Ethiopia, this study aimed to determine the prevalence and associated factors of Schistosoma mansoni and other helminthes infections at Haike primary school children, Haike, North-East Ethiopia...
November 21, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/29161812/acute-amino-acid-d-serine-administration-similar-to-ketamine-produces-antidepressant-like-effects-through-the-identical-mechanisms
#9
I-Hua Wei, Kuang-Ti Chen, Mang-Hung Tsai, Ching-Hsiang Wu, Hsien-Yuan Lane, Chih-Chia Huang
D-serine is an amino acid and can work as an agonist at the glycine sites of N-methyl-D-aspartate receptor (NMDAR). Interestingly, both types of glutamatergic modulators, NMDAR enhancers and blockers, can improve depression through common targets, namely alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionaic acid receptors (AMPARs) and mammalian target of rapamycin (mTOR). To elucidate the cellular signaling pathway underlying this counterintuitive observation, we activated NMDARs in rats by using D-serine. Saline, ketamine (NMDAR antagonist), and desipramine (tricyclic antidepressant) were used as controls...
November 22, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29161233/swimming-but-not-vitamin-e-ameliorates-prothrombotic-state-and-hypofibrinolysis-in-a-rat-model-of-nonalcoholic-fatty-liver-disease
#10
Hussein F Sakr, Amr M Abbas, Mohamed A Haidara
BACKGROUND: Nonalcoholic fatty liver disease (NAFLD) is associated with a systemic procoagulant hypofibrinolysis state that is considered as a risk factor for microangiopathy and peripheral vascular diseases. Swimming exercise ameliorates the metabolic dysfunction in type 2 diabetes. Vitamin E is a natural antioxidant that reduces the risk of endothelial dysfunction in metabolic syndrome. The aim of the present study is to investigate the effect of combined swimming exercise with vitamin E on coagulation as well as blood fibrinolysis markers in rats with NAFLD...
November 21, 2017: Journal of Basic and Clinical Physiology and Pharmacology
https://www.readbyqxmd.com/read/29160327/imbalance-in-amino-acid-and-purine-metabolisms-at-the-hypothalamus-in-inflammation-associated-depression-by-gc-ms
#11
Yu Wu, Yonghong Li, Yanjuan Jia, Chaojun Wei, Hui Xu, Rui Guo, Yuanting Li, Jing Jia, Xiaoming Qi, Xiaoling Gao
Hypothalamic dysfunction is a key factor in depression; increasing evidence highlights neuroinflammation abnormalities as well as imbalances in neurotransmitters and the purinergic system in the pathophysiology of depression. However, little is known about the metabolomic changes in the hypothalamus of depressed patients with neuroinflammation. Herein, taking advantage of the well-established lipopolysaccharide (LPS)-induced depression mouse model, we measured metabolic changes in the hypothalamus using gas chromatography-mass spectrometry (GC-MS)...
November 21, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/29160161/serum-from-differently-exercised-subjects-induces-myogenic-differentiation-in-lhcn-m2-human-myoblasts
#12
D Vitucci, E Imperlini, R Arcone, A Alfieri, A Canciello, L Russomando, D Martone, A Cola, G Labruna, S Orrù, D Tafuri, A Mancini, P Buono
Myogenesis is the formation of muscle tissue from muscle precursor cells. Physical exercise induces satellite cell activation in muscle. Currently, C2C12 murine myoblast cells are used to study myogenic differentiation. Herein, we evaluated whether human LHCN-M2 myoblasts can differentiate into mature myotubes and express early (myotube formation, creatine kinase activity and myogenin) and late (MyHC-β) muscle-specific markers when cultured in differentiation medium (DM) for 2, 4 and 7 days. We demonstrate that treatment of LHCN-M2 cells with DM supplemented with 0...
November 21, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29160036/alternative-control-of-aedes-aegypti-resistant-to-pyrethroids-lethal-and-sublethal-effects-of-monoterpenes-bioinsecticides
#13
Indira M A Silva, Gustavo F Martins, Carlisson R Melo, Alisson S Santana, Ruan R N Faro, Arie F Blank, Péricles B Alves, Marcelo C Picanço, Paulo F Cristaldo, Ana Paula A Araújo, Leandro Bacci
BACKGROUND: The mosquito Aedes aegypti is intensely controlled because it is vector of viruses that cause innumerous diseases, especially in tropical regions. Due to the indiscriminate use of insecticides, populations from different regions have been resistant to pyrethroids. Here, we analyzed the lethal and sublethal effects of essential oil of Aristolochia trilobata and its major compounds on A. aegypti from susceptible and pyrethroid resistant populations. RESULTS: Our results showed that the toxicity and behavioral changes to different compounds are dependent of the stage of the insect life cycle...
November 21, 2017: Pest Management Science
https://www.readbyqxmd.com/read/29159880/swim-bladder-mycosis-in-pretty-tetra-hemigrammus-pulcher-caused-by-exophiala-pisciphila-and-phaeophleospora-hymenocallidicola-and-experimental-verification-of-pathogenicity
#14
J Řehulka, A Kubátová, V Hubka
Spontaneous invasive and chronic disseminated mycosis affected Hemigrammus pulcher kept in a public aquarium, and infection was manifested by inappetence, exophthalmia, erratic swimming, eroded scales, anaemia of the gills and abdominal distension. Internally, there was a grossly swollen swim bladder with a thickened wall filled with a dark mass. The body cavities contained a clear, light amber fluid and a swollen intestine which was full of a watery fluid containing small gas bubbles. Histopathology revealed a granulomatous inflammatory response with fungal hyphae in the lumen and wall of the swim bladder, hepatopancreas, spleen and kidneys with signs of nephrohydrosis...
November 21, 2017: Journal of Fish Diseases
https://www.readbyqxmd.com/read/29159846/horizontal-and-vertical-distribution-of-sea-lice-larvae-lepeophtheirus-salmonis-in-and-around-salmon-farms-in-the-bay-of-fundy-canada
#15
E J Nelson, S M C Robinson, N Feindel, A Sterling, A Byrne, K Pee Ang
The sea louse, Lepeophtheirus salmonis, is parasitic to salmonid species in the Northern Hemisphere and has become a widespread biological and economic problem for the salmon farming industry. A better understanding is needed of their spatial distribution and early life history to disrupt the life cycle of the sea louse. In this study, sea lice larval densities within salmon farms, between salmon farms and reference sites, and at various depths were quantified using both plankton pumps and plankton nets. Farm sites exhibited significantly higher densities than reference sites; however, these densities dropped an order of magnitude at a distance of 100 m from the cages...
November 21, 2017: Journal of Fish Diseases
https://www.readbyqxmd.com/read/29158978/zebrafish-swimming-in-the-flow-a-particle-image-velocimetry-study
#16
Violet Mwaffo, Peng Zhang, Sebastián Romero Cruz, Maurizio Porfiri
Zebrafish is emerging as a species of choice for the study of a number of biomechanics problems, including balance development, schooling, and neuromuscular transmission. The precise quantification of the flow physics around swimming zebrafish is critical toward a mechanistic understanding of the complex swimming style of this fresh-water species. Although previous studies have elucidated the vortical structures in the wake of zebrafish swimming in placid water, the flow physics of zebrafish swimming against a water current remains unexplored...
2017: PeerJ
https://www.readbyqxmd.com/read/29158577/vgf-function-in-depression-and-antidepressant-efficacy
#17
C Jiang, W-J Lin, M Sadahiro, B Labonté, C Menard, M L Pfau, C A Tamminga, G Turecki, E J Nestler, S J Russo, S R Salton
Brain-derived neurotrophic factor (BDNF) is a critical effector of depression-like behaviors and antidepressant responses. Here, we show that VGF (non-acronymic), which is robustly regulated by BDNF/TrkB signaling, is downregulated in hippocampus (male/female) and upregulated in nucleus accumbens (NAc) (male) in depressed human subjects and in mice subjected to chronic social defeat stress (CSDS). Adeno-associated virus (AAV)-Cre-mediated Vgf ablation in floxed VGF mice, in dorsal hippocampus (dHc) or NAc, led to pro-depressant or antidepressant behaviors, respectively, while dHc- or NAc-AAV-VGF overexpression induced opposite outcomes...
November 21, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/29158392/high-postural-costs-and-anaerobic-metabolism-during-swimming-support-the-hypothesis-of-a-u-shaped-metabolism-speed-curve-in-fishes
#18
Valentina Di Santo, Christopher P Kenaley, George V Lauder
Swimming performance is considered a key trait determining the ability of fish to survive. Hydrodynamic theory predicts that the energetic costs required for fishes to swim should vary with speed according to a U-shaped curve, with an expected energetic minimum at intermediate cruising speeds and increasing expenditure at low and high speeds. However, to date no complete datasets have shown an energetic minimum for swimming fish at intermediate speeds rather than low speeds. To address this knowledge gap, we used a negatively buoyant fish, the clearnose skate Raja eglanteria, and took two approaches: a classic critical swimming speed protocol and a single-speed exercise and recovery procedure...
November 20, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29157904/anti-fatigue-activity-of-an-arabinan-rich-pectin-from-acerola-malpighia-emarginata
#19
Rafael Roberto Klosterhoff, Luiz K S Kanazawa, Ana L D M Furlanetto, Joao V C Peixoto, Claudia R Corso, Eliana R Adami, Marcello Iacomini, Rosalvo T H Fogaça, Alexandra Acco, Silvia M S C Cadena, Roberto Andreatini, Lucimara M C Cordeiro
A fraction composed of an arabinan-rich pectin was extracted from acerola fruit (Malpighia emarginata) and named ACWS. This fraction presented 93% of total carbohydrate, relative molecular weight of 7.5×10(4)g/mol, galacturonic acid, arabinose, galactose, xylose and rhamnose in 52.1:32.4:7.2:4.8:3.5 molar ratio and had its structure confirmed by NMR analysis. The anti-fatigue activity of ACWS was evaluated using the weight load swim test on trained mice. ACWS was orally administered at doses of 50mg/kg, 100mg/kg and 200mg/kg for 28 days...
November 17, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29157822/antibiofilm-activities-of-norharmane-and-its-derivatives-against-escherichia-coli-o157-h7-and-other-bacteria
#20
Jin-Hyung Lee, Yong-Guy Kim, Sang Hee Shim, Jintae Lee
BACKGROUND: Bacterial biofilms exhibit reduced sensitivity to conventional antibiotics and host defence systems and contribute to the persistence of chronic bacterial infections. HYPOTHESIS: The antibiofilm approach using plant alkaloids provides an alternative to antibiotic strategies. STUDY DESIGN: In this study, the antibiofilm activities of various plant alkaloids were investigated against enterohemorrhagic Escherichia coli O157:H7 and Pseudomonas aeruginosa...
December 1, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
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