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zebrafish kidney

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https://www.readbyqxmd.com/read/29341136/phylogeny-and-distribution-of-protein-kinase-c-variants-in-the-zebrafish
#1
Marion F Haug, Matthias Gesemann, Manuela Berger, Stephan C F Neuhauss
Conventional protein kinases - consisting of α, β, and γ family members - play key roles in numerous signal transduction events. Phylogenetic analysis demonstrated the existence of five prkcs (the genes representing PKCs) in zebrafish, two paralogous forms of prkca and -b and one prkcg variant. mRNA expression analysis showed distinct, mainly nervous system specific expression, for all five prkc genes. For prkca and prkcb paralogs prominent expression can be seen in the telencephalon, in diencephalic regions such as the habenula or the optic tectum, in hypothalamic areas and in distinct cerebellar structures...
January 17, 2018: Journal of Comparative Neurology
https://www.readbyqxmd.com/read/29317240/toxicity-and-cardiac-effects-of-acute-exposure-to-tryptophan-metabolites-on-the-kynurenine-pathway-in-early-developing-zebrafish-danio-rerio-embryos
#2
Michal Majewski, Natalia Kasica, Anna Jakimiuk, Piotr Podlasz
Defects in tryptophan metabolism on the l-kynurenine pathway (KP) are implicated in a number of human diseases, including chronic kidney disease, brain edema or injury, tuberculosis and malaria - as well as cancer, neurodegenerative and autoimmune disorders. However, it is unclear to what extent detrimental effects of exposure to tryptophan metabolites might impact the early development of organism. Thus, this study examined the effects of KP exposure in zebrafish embryos starting at the blastula period (4hpf) and the segmentation stage (24hpf)...
January 6, 2018: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/29286368/visualizing-multiciliated-cells-in-the-zebrafish-through-a-combined-protocol-of-whole-mount-fluorescent-in-situ-hybridization-and-immunofluorescence
#3
Amanda N Marra, Marisa Ulrich, Audra White, Meghan Springer, Rebecca A Wingert
In recent years, the zebrafish embryo has emerged as a popular model to study developmental biology due to traits such as ex utero embryo development and optical transparency. In particular, the zebrafish embryo has become an important organism to study vertebrate kidney organogenesis as well as multiciliated cell (MCC) development. To visualize MCCs in the embryonic zebrafish kidney, we have developed a combined protocol of whole-mount fluorescent in situ hybridization (FISH) and whole mount immunofluorescence (IF) that enables high resolution imaging...
November 18, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29230594/molecular-evolution-of-myoglobin-in-the-tibetan-plateau-endemic-schizothoracine-fish-cyprinidae-teleostei-and-tissue-specific-expression-changes-under-hypoxia
#4
Delin Qi, Yan Chao, Yongli Zhao, Mingzhe Xia, Rongrong Wu
Myoglobin (Mb) is an oxygen-binding hemoprotein that was once thought to be exclusively expressed in oxidative myocytes of skeletal and cardiac muscle where it serves in oxygen storage and facilitates intracellular oxygen diffusion. In this study, we cloned the coding sequence of the Mb gene from four species, representing three groups, of the schizothoracine fish endemic to the Qinghai-Tibetan Plateau (QTP), then conducted molecular evolution analyses. We also investigated tissue expression patterns of Mb and the expression response to moderate and severe hypoxia at the mRNA and protein levels in a representative of the highly specialized schizothoracine fish species, Schizopygopsis pylzovi...
December 11, 2017: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/29203238/targeting-erythropoietin-protects-against-proteinuria-in-type-2-diabetic-patients-and-in-zebrafish
#5
Jianqing She, Zuyi Yuan, Yue Wu, Junfang Chen, Jens Kroll
OBJECTIVE: Adult human kidneys produce erythropoietin (EPO), which regulates red blood cell formation; however, whether EPO also functions directly on kidney development and controls diabetic kidney disease remains unknown. Here we analyzed the role of EPO in kidney development and under hyperglycemic conditions in zebrafish and in humans. METHODS: Diabetic patients and respective controls were enrolled in two cohorts. Serum EPO level and urine protein change upon human EPO administration were then analyzed...
November 22, 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/29193635/inactivation-of-ammecr1-is-associated-with-growth-bone-and-heart-alterations
#6
Mariana Moysés-Oliveira, Giuliana Giannuzzi, Richard J Fish, Jill A Rosenfeld, Florence Petit, Maria de Fatima Soares, Leslie Domenici Kulikowski, Adriana Di Battista, Malú Zamariolli, Fan Xia, Thomas Liehr, Nadezda Kosyakova, Gianna Carvalheira, Michael Parker, Eleanor G Seaby, Sarah Ennis, Rodney D Gilbert, R Tanner Hagelstrom, Maria L Cremona, Wenhui L Li, Alka Malhotra, Anjana Chandrasekhar, Denise L Perry, Ryan J Taft, Julie McCarrier, Donald G Basel, Joris Andrieux, Taiza Stumpp, Fernanda Antunes, Gustavo José Pereira, Marguerite Neerman-Arbez, Vera Ayres Meloni, Margaret Drummond-Borg, Maria Isabel Melaragno, Alexandre Reymond
We report five individuals with loss-of-function of the X-linked AMMECR1: a girl with a balanced X-autosome translocation and inactivation of the normal X-chromosome; two boys with maternally-inherited and de novo nonsense variants; and two half-brothers with maternally inherited microdeletion variants. They present with short stature, cardiac and skeletal abnormalities and hearing loss. Variants of unknown significance in AMMECR1 in four male patients from two families with partially overlapping phenotypes were previously reported...
November 28, 2017: Human Mutation
https://www.readbyqxmd.com/read/29183810/identification-structural-characterization-and-expression-analysis-of-toll-like-receptors-2-and-3-from-gibel-carp-carassius-auratus-gibelio
#7
Yuding Fan, Yong Zhou, Lingbing Zeng, Nan Jiang, Wenzhi Liu, Jianqing Zhao, Qiwang Zhong
Toll-like receptors (TLRs) are important components of innate immunity. TLRs recognize pathogen-associated molecular patterns (PAMPs) and initiate downstream signaling pathways in response. In present study, we report the identification of two TLRs from gibel carp (Carassius auratus gibelio), TLR2 and TLR3 (designated CagTLR2 and CagTLR3, respectively). We report on the genomic structures and mRNA expression patterns of CagTLR2 and CagTLR3. Five exons and four introns were identified from the genomic DNA sequence of CagTLR3 (4749 bp in total length); this genomic organization is similar to that of TLR3 in zebrafish and human...
November 26, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29177677/multibiomarker-responses-of-juvenile-stages-of-zebrafish-danio-rerio-to-subchronic-exposure-to-polycyclic-musk-tonalide
#8
Jana Blahova, Lenka Divisova, Lucie Plhalova, Vladimira Enevova, Martin Hostovsky, Veronika Doubkova, Petr Marsalek, Petr Fictum, Zdenka Svobodova
Synthetic polycyclic musks, widely used as additives in personal care products, are present in both biotic and abiotic matrices of the aquatic environment at concentrations of ng/l to µg/l. Although they are determined at comparatively low concentrations, these levels are biologically relevant and pose a significant growing risk as stressors to aquatic organisms. The purpose of our study was to evaluate the effects of 28-day-long exposure to polycyclic musk tonalide in zebrafish juvenile stages (Danio rerio) using selected biomarkers...
November 24, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/29153776/francisella-noatunensis-subspecies-noatunensis-clpb-deletion-mutant-impairs-development-of-francisellosis-in-a-zebrafish-model
#9
Elisabeth O Lampe, Carl Zingmark, Julia I Tandberg, Ida Marie P Thrane, Espen Brudal, Anders Sjöstedt, Hanne C Winther-Larsen
BACKGROUND: Francisella noatunensis ssp. noatunensis (F.n.n.) is the causative agent of francisellosis in Atlantic cod and constitutes one of the main challenges for future aquaculture on this species. A facultative intracellular bacterium like F.n.n. exert an immunologic challenge against which live attenuated vaccines in general are most effective. Thus, we constructed a deletion in the F.n.n. clpB gene as ΔclpB mutants are among the most promising vaccine candidates in human pathogenic Francisella...
November 16, 2017: Vaccine
https://www.readbyqxmd.com/read/29145131/removal-of-the-precursors-of-n-nitrosodiethylamine-ndea-an-emerging-disinfection-byproduct-in-drinking-water-treatment-process-and-its-toxicity-to-adult-zebrafish-danio-rerio
#10
Jian Zheng, Tao Lin, Wei Chen
N-nitrosodiethylamine (NDEA) is one of the emerging nitrogenous disinfection byproducts with probable cytotoxicity, genotoxicity, and carcinogenesis. Its potential toxicological effects have received extensive attention but remain to be poorly understood. In this study, changes in NDEA precursors in drinking water treatment process were studied using the trial of its formation potential (FP), and the toxicity induced by NDEA to adult zebrafish was investigated. NDEA FP in the raw water of Taihu Lake ranged from 46...
October 10, 2017: Chemosphere
https://www.readbyqxmd.com/read/29142988/proximal-tubular-expression-patterns-of-megalin-and-cubilin-in-proteinuric-nephropathies
#11
Jia Sun, Kjell Hultenby, Jonas Axelsson, Johan Nordström, Bing He, Annika Wernerson, Karin Lindström
Introduction: Receptor-mediated endocytosis is responsible for protein reabsorption in the proximal tubules. For albumin this process involves at least 2 interacting receptors, megalin and cubilin. Albumin is not usually present in the urine, indicating a highly efficient tubular reuptake under physiological conditions. However, early appearance of albuminuria may mean that the tubular system is overwhelmed by large quantities of albumin or that the function is impaired. Methods: To better understand the physiological role of megalin and cubilin in human renal disease, renal biopsies from 15 patients with a range of albuminuria and 3 healthy living donors were analyzed for proximal tubular expression of megalin and cubilin using immunohistochemistry (IHC) and semiquantitative immune-electron microscopy...
July 2017: KI Reports
https://www.readbyqxmd.com/read/29111710/effect-of-pachybasin-on-general-toxicity-and-developmental-toxicity-in-vivo
#12
Yi-Ruu Lin, Ming-Huan Chan, Huan-Lin Peng, Kou-Cheng Peng, Shu-Ying Liu
In order to document the safety of pachybasin, a secondary metabolite of Trichoderma harzianum, for use as a bio-agricultural agent, it was subjected to general toxicological testing in mice and developmental toxicity in zebrafish. With either 5 or 20 mg kg-1 pachybasin i.p. injection, mice behavioral responses such as motor coordination, spontaneous locomotor activity, or nociceptive pain was not influenced. In long-term effect (daily injection for 14 days), the physiological, haematological, liver, and kidney functions were not altered either...
November 7, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29100090/exome-wide-association-study-identifies-greb1l-mutations-in-congenital-kidney-malformations
#13
Simone Sanna-Cherchi, Kamal Khan, Rik Westland, Priya Krithivasan, Lorraine Fievet, Hila Milo Rasouly, Iuliana Ionita-Laza, Valentina P Capone, David A Fasel, Krzysztof Kiryluk, Sitharthan Kamalakaran, Monica Bodria, Edgar A Otto, Matthew G Sampson, Christopher E Gillies, Virginia Vega-Warner, Katarina Vukojevic, Igor Pediaditakis, Gabriel S Makar, Adele Mitrotti, Miguel Verbitsky, Jeremiah Martino, Qingxue Liu, Young-Ji Na, Vinicio Goj, Gianluigi Ardissino, Maddalena Gigante, Loreto Gesualdo, Magdalena Janezcko, Marcin Zaniew, Cathy Lee Mendelsohn, Shirlee Shril, Friedhelm Hildebrandt, Joanna A E van Wijk, Adela Arapovic, Marijan Saraga, Landino Allegri, Claudia Izzi, Francesco Scolari, Velibor Tasic, Gian Marco Ghiggeri, Anna Latos-Bielenska, Anna Materna-Kiryluk, Shrikant Mane, David B Goldstein, Richard P Lifton, Nicholas Katsanis, Erica E Davis, Ali G Gharavi
Renal agenesis and hypodysplasia (RHD) are major causes of pediatric chronic kidney disease and are highly genetically heterogeneous. We conducted whole-exome sequencing in 202 case subjects with RHD and identified diagnostic mutations in genes known to be associated with RHD in 7/202 case subjects. In an additional affected individual with RHD and a congenital heart defect, we found a homozygous loss-of-function (LOF) variant in SLIT3, recapitulating phenotypes reported with Slit3 inactivation in the mouse...
November 2, 2017: American Journal of Human Genetics
https://www.readbyqxmd.com/read/29093028/genome-wide-meta-analysis-unravels-interactions-between-magnesium-homeostasis-and-metabolic-phenotypes
#14
Tanguy Corre, Francisco J Arjona, Caroline Hayward, Sonia Youhanna, Jeroen H F de Baaij, Hendrica Belge, Nadine Nägele, Huguette Debaix, Maxime G Blanchard, Michela Traglia, Sarah E Harris, Sheila Ulivi, Rico Rueedi, David Lamparter, Aurélien Macé, Cinzia Sala, Stefania Lenarduzzi, Belen Ponte, Menno Pruijm, Daniel Ackermann, Georg Ehret, Daniela Baptista, Ozren Polasek, Igor Rudan, Toby W Hurd, Nicholas D Hastie, Veronique Vitart, Geràrd Waeber, Zoltán Kutalik, Sven Bergmann, Rosa Vargas-Poussou, Martin Konrad, Paolo Gasparini, Ian J Deary, John M Starr, Daniela Toniolo, Peter Vollenweider, Joost G J Hoenderop, René J M Bindels, Murielle Bochud, Olivier Devuyst
Magnesium (Mg2+) homeostasis is critical for metabolism. However, the genetic determinants of the renal handling of Mg2+, which is crucial for Mg2+ homeostasis, and the potential influence on metabolic traits in the general population are unknown. We obtained plasma and urine parameters from 9099 individuals from seven cohorts, and conducted a genome-wide meta-analysis of Mg2+ homeostasis. We identified two loci associated with urinary magnesium (uMg), rs3824347 (P=4.4×10-13) near TRPM6, which encodes an epithelial Mg2+ channel, and rs35929 (P=2...
November 1, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/29091793/differential-sensitivities-to-dioxin-like-compounds-pcb-126-and-pecdf-between-tg-cyp1a-gfp-transgenic-medaka-and-zebrafish-larvae
#15
Hongyan Xu, Caixia Li, Pacharaporn Suklai, Qinghua Zeng, Raymond Chong, Zhiyuan Gong
It has been intensively documented that there are species-differences in the sensitivity to dioxin-like compounds (DLCs) in mammalian and avian. However, this issue is still unclear in fish. This study aimed at evaluating the differential sensitivities to DLCs in fish larvae. Here, larvae of Tg(cyp1a:gfp) medaka and Tg(cyp1a:gfp) zebrafish were tested with 2,3,7,8-Tetrachlorodibenzodioxin (TCDD), polychlorinated biphenyl 126 (PCB 126) and 2,3,4,7,8,-Pentachlorodibenzofuran (PeCDF). Comparative analyses were performed on induction of GFP fluorescence, expression of endogenous cyp1a mRNAs and EROD activity between the two species after exposure to these chemicals...
October 29, 2017: Chemosphere
https://www.readbyqxmd.com/read/29046299/high-content-screening-assay-based-discovery-of-paullones-as-novel-podocyte-protective-agents
#16
Ha Won Lee, Ehtesham Arif, Mehmet Mete Altintas, Kevin Quick, Shrey Maheshwari, Alexandra Plezia, Aqsa Mahmood, Jochen Reiser, Deepak Nihalani, Vineet Gupta
Podocyte dysfunction and loss is an early event and a hallmark of proteinuric kidney diseases. Podocyte's normal function is maintained via its unique cellular architecture that relies on an intracellular network of filaments, including filamentous actin (F-actin) and microtubules, that provides mechanical support. Damage to this filamentous network leads to changes in cellular morphology and results in podocyte injury, dysfunction, and death. Conversely, stabilization of this network protects podocytes and ameliorates proteinuria...
October 18, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28988229/studying-kidney-disease-using-tissue-and-genome-engineering-in-human-pluripotent-stem-cells
#17
Elena Garreta, Federico González, Núria Montserrat
Kidney morphogenesis and patterning have been extensively studied in animal models such as the mouse and zebrafish. These seminal studies have been key to define the molecular mechanisms underlying this complex multistep process. Based on this knowledge, the last 3 years have witnessed the development of a cohort of protocols allowing efficient differentiation of human pluripotent stem cells (hPSCs) towards defined kidney progenitor populations using two-dimensional (2D) culture systems or through generating organoids...
October 7, 2017: Nephron
https://www.readbyqxmd.com/read/28959735/zebrafish-danio-rerio-as-a-vertebrate-model-host-to-study-colonization-pathogenesis-and-transmission-of-foodborne-escherichia-coli-o157
#18
Daniel H Stones, Alexander G J Fehr, Laurel Thompson, Jacqueline Rocha, Nicolas Perez-Soto, Vipin T P Madhavan, Kerstin Voelz, Anne Marie Krachler
Foodborne infections with enterohemorrhagic Escherichia coli (EHEC) are a major cause of diarrheal illness in humans and can lead to severe complications such as hemolytic uremic syndrome. Cattle and other ruminants are the main reservoir of EHEC, which enters the food chain through contaminated meat, dairy, or vegetables. Here, we describe the establishment of a vertebrate model for foodborne EHEC infection, using larval zebrafish (Danio rerio) as a host and the protozoan prey Paramecium caudatum as a vehicle...
September 2017: MSphere
https://www.readbyqxmd.com/read/28947709/the-first-report-of-diablo-in-megalobrama-amblycephala-characterization-phylogenetic-analysis-functional-annotation-and-expression
#19
Ngoc Tuan Tran, Ivan Jakovlić, Wei-Min Wang
Smac/DIABLO gene is essential for the apoptosis mechanism in mammals. This study is the first report of the Megalobrama amblycephala (ma) diablo gene, and the first report of the tertiary structure of a Diablo polypeptide in fish. Madiablo is 1540-bp long with an open reading frame of 792 bp, encoding a putative protein of 263 amino acids with a molecular weight of 29.2 kDa. Phylogenetic analysis indicates that it is closely related to the zebrafish Diablo-a homologue. It also indicates the existence of two diablo copies (a and b) in teleosts; apart fromthe Percomorpha group,where diablo-b has been lost, but diablo-a had undergone an independent duplication...
September 2017: Journal of Genetics
https://www.readbyqxmd.com/read/28944777/developmental-biology-single-cell-rna-sequencing-identifies-novel-kidney-cell-types-in-zebrafish
#20
Jack M Heintze
No abstract text is available yet for this article.
November 2017: Nature Reviews. Nephrology
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