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https://www.readbyqxmd.com/read/29438674/molecular-characterization-of-inhibin-a-structure-and-expression-analysis-in-clarias-batrachus
#1
Irshad Ahmad, Dhanashree D Jagtap, C Selvaa Kumar, Nafisa H Balasinor, A M Babitha Rani, Deepak Agarwal, Neelam Saharan
The inhibins are disulphide-linked heterodimeric glycoproteins that belong to the TGFβ superfamily. Inhibins have been well studied in mammals but the information about their structure and function is very limited in lower vertebrates. The aim of the present study was to characterize inhibin-A and to understand its receptor binding interaction, and to evaluate its biological function in Clarias batrachus. Structure prediction of inhibin-A revealed two glycosylation sites on inhibin-α (Asp262 and Asn334). Docking of inhibin-A with its receptor; betaglycan and Act RIIA showed that residues Ser321, Gly324 and Leu325 of inhibin-α are involved in high affinity binding with betaglycan while inhibin-βA bound to Act RIIA by forming hydrogen bonds...
February 10, 2018: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/29426120/contaminants-of-emerging-concern-in-the-hartbeespoort-dam-catchment-and-the-umngeni-river-estuary-2016-pollution-incident-south-africa
#2
Cornelius Rimayi, David Odusanya, Jana M Weiss, Jacob de Boer, Luke Chimuka
A quantitative assessment of pollutants of emerging concern in the Hartbeespoort Dam catchment area was conducted using liquid chromatography-tandem mass spectrometry (LC-MS/MS) to establish the occurrence, source and distribution of 15 environmental pollutants, including 10 pharmaceuticals, 1 pesticide and 4 steroid hormones. Seasonal sampling was conducted in the Hartbeespoort Lake using sub-surface grab sampling to determine the lake's ecological status and obtain data for establishment of progressive operational monitoring...
February 2, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29387380/nutritional-value-of-raw-canavalia-ensiformis-and-its-utilization-as-partial-replacement-for-soybean-meal-in-the-diet-of-clarias-gariepinus-burchell-1822-fingerlings
#3
Shola G Solomon, Victor T Okomoda, Obekpa Oguche
The nutritional value of raw Jack bean meal (Canavalia ensiformis) as a partial substitute for soybeans meal was investigated in this study. Preliminary investigation on nutrient composition revealed that lysine, histidine, and phenylalanine were significantly higher in C. ensiformis seed meal compared to soybean meal. However, crude protein and other essential amino acids were significantly lower. Feeding trial was then conducted to investigate the effect of replacing about 40% soybeans meal (at 58.8% inclusion) with C...
January 2018: Food Science & Nutrition
https://www.readbyqxmd.com/read/29374338/intraductal-papillary-neoplasm-of-the-bile-duct-ipnb-case-report-and-literature-review-of-a-challenging-disease-to-diagnose
#4
Ignacio Fuente, Marcos Gonzalez, Martin de Santibañes, Juan Pekolj, Oscar Mazza, Eduardo de Santibañes, Rodrigo Sanchez Claria
No abstract text is available yet for this article.
January 26, 2018: Journal of Gastrointestinal Cancer
https://www.readbyqxmd.com/read/29281143/the-soluble-guanylate-cyclase-stimulator-iw-1973-prevents-inflammation-and-fibrosis-in-experimental-non-alcoholic-steatohepatitis
#5
Roger Flores-Costa, José Alcaraz-Quiles, Esther Titos, Cristina López-Vicario, Mireia Casulleras, Marta Duran-Güell, Bibiana Rius, Alba Diaz, Katherine Hall, Courtney Shea, Renee Sarno, Mark Currie, Jaime L Masferrer, Joan Clària
BACKGROUND AND PURPOSE: Non-alcoholic steatohepatitis (NASH) is the hepatic manifestation of the metabolic syndrome and is characterized by steatosis, inflammation and fibrosis. Soluble guanylate cyclase (sGC) stimulation reduces inflammation and fibrosis in experimental models of lung, kidney and heart disease. Here, we tested whether sGC stimulation is also effective in experimental NASH. EXPERIMENTAL APPROACH: Mice (n=35) were induced to NASH by a choline-deficient, L-amino acid-defined, high-fat (CDAAH) diet and received either placebo or the sGC stimulator IW-1973 at two different doses (1 and 3 mg/kg/day) for 9 weeks...
December 27, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/29277365/effect-of-agaricus-bisporus-enriched-diet-on-growth-hematology-and-immune-protection-in-clarias-gariepinus-against-flavobacterium-columnare
#6
Ramasamy Harikrishnan, Adil Naafar, Mohamed Saiyad Musthafa, Anis Ahamed, Ibrahim A Arif, Chellam Balasundaram
The purpose of the present study was to find out the effect of dietary enriched button mushroom, Agaricus bisporus at 1%, 5%, and 10% levels on growth performance, hematology, nonspecific immune responses, and disease resistance in catfish, Clarias gariepinus against Flavobacterium columnare for a period of four weeks. The percentage weight gain and specific growth rate (SGR) were higher in the infected fish fed with 5% A. bisporus enriched diet than with 1% and 10% diets. The red blood cell (RBC), white blood cell (WBC), hematocrit (PCV), and haemoglobin (Hb) values are similar (p > ...
December 19, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29246698/acute-on-chronic-liver-failure-human-serum-albumin-and-immune-modulation-the-beginning-of-an-exciting-adventure
#7
EDITORIAL
Vicente Arroyo, Joan Clària
No abstract text is available yet for this article.
December 12, 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29226264/generation-of-viable-progeny-from-dead-brooders-of-endangered-catfish-clarias-magur-hamilton-1822
#8
Sullip Kumar Majhi, Santosh Kumar
The obligatory air-breathing catfish Clarias magur is a prime candidate for aquaculture owing to its unique taste, high growth rate, and hardy nature. However, recently the IUCN has listed the species under the endangered category because the population has critically declined in the wild. The sexually mature C. magur brooders are often collected from their natural habitats for seed production in captivity. In many cases, the brooder dies due to handling injuries or confinement stress. In this study, we demonstrated that viable progeny could be generated from freshly dead sexually mature C...
October 2017: Heliyon
https://www.readbyqxmd.com/read/29186702/bioaccumulation-and-risk-assessment-of-organochlorine-pesticides-in-fish-from-a-global-biodiversity-hotspot-isimangaliso-wetland-park-south-africa
#9
Archibold Buah-Kwofie, Marc S Humphries, Letitia Pillay
Organochlorine pesticides (OCPs) have been used extensively in the eastern regions of South Africa for agricultural and malaria control purposes, yet few data exist on the local environmental and social impacts of these compounds. Such issues have become of increasing concern in the iSimangaliso World Heritage Site, where the continued use of OCPs may pose risks to several sensitive and protected species. This study was designed to examine the bioaccumulation of OCPs in two common fish species, Oreochromis mossambicus (Mozambique tilapia) and Clarias gariepinus (African sharptooth catfish) from iSimangaliso Wetland Park...
November 26, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29156308/modulatory-effects-of-green-tea-extract-against-the-hepatotoxic-effects-of-4-nonylphenol-in-catfish-clarias-gariepinus
#10
A H Sayed, Hamdy A M Soliman
The antioxidant role of the green tea (Camellia sinensis) extract (GTE) was examined to remedy the toxic effects of (0.2mgl(-1)) 4-nonylphenol(4-NP). Biochemical parameters, antioxidant enzymes, liver lipid peroxidation (LPO), DNA fragmentation, and apoptosis as well as histopathology of liver of African catfish Clarias gariepinus were considered. Catfishes were divided into four groups: first group (control), second group (0.2mgl(-1) of 4-NP), third group (0.2mgl(-1)of 4-NP +100mg GTE l(-1)water), and fourth group (0...
November 17, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29156287/protective-effect-of-nigella-sativa-on-4-nonylphenol-induced-nephrotoxicity-in-clarias-gariepinus-burchell-1822
#11
Ahmed M Kotb, Mahmoud Abd-Elkareem, Nasser S Abou Khalil, Alaa El-Din H Sayed
The aim of this study was to examine the protective effects of Nigella sativa (N. sativa) on 4-Nonylphenol-induced nephrotoxicity in Clarias gariepinus. 30 fishes were divided into five groups: control, 4-nonylphenol-treated, 1% N. sativa treated, 2.5% N. sativa treated, and 5% N. sativa treated. N. sativa and 4-Nonylphenol were given for 3weeks. 4-NP and 4-NP-N. sativa treated fishes were compared with the control group. Kidney histology, immunochemistry, and electron microscope were assessed after 4-NP exposure...
November 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29152462/dietary-intake-of-heavy-metals-from-eight-highly-consumed-species-of-cultured-fish-and-possible-human-health-risk-implications-in-bangladesh
#12
A K M Atique Ullah, M A Maksud, S R Khan, L N Lutfa, Shamshad B Quraishi
Concentrations of five heavy metals (Pb, Cd, Cr, As and Hg) in eight highly consumed cultured fish species (Labeo rohita, Clarias gariepinus, Hypophthalmichthys molitrix, Cyprinus capio, Puntius sarana, Oreochromis mossambicus, Pangasius pangasius and Anabas testudineus) collected from four wholesale markets of Dhaka city, Bangladesh (Karwan Bazar, Mohammadpur Town Hall, Newmarket and Mirpur-1) were measured using atomic absorption spectrometry (AAS) in order to evaluate the potential human health risks from the consumption of fish...
2017: Toxicology Reports
https://www.readbyqxmd.com/read/29146976/association-of-a-variant-in-the-gene-encoding-for-erv1-chemr23-with-reduced-inflammation-in-visceral-adipose-tissue-from-morbidly-obese-individuals
#13
Cristina López-Vicario, Bibiana Rius, José Alcaraz-Quiles, Ana González-Périz, Ana Isabel Martínez-Puchol, Mireia Casulleras, Marta Duran-Güell, Ainitze Ibarzabal, Ricard Corcelles, Andrés Laguna-Fernández, Magnus Back, Esther Titos, Joan Clària
Obesity comorbidities are closely associated with chronic low-grade adipose tissue inflammation. A number of SNPs associated with inflammation has been identified, underscoring the impact of genetic determinants on this process. Here, we screened SNPs in genes with pro-inflammatory (IL-1β, IL-6, STAT3 and JAK2), anti-inflammatory (IL-10 and SOCS3) and pro-resolving (ERV1/ChemR23) properties in 101 obese and 99 non-obese individuals. Among the SNPs analyzed, we identified that individuals carrying a C allele in the rs1878022 polymorphism of the ERV1/ChemR23 gene, which encodes for the receptor of the pro-resolving mediator RvE1, had increased ERV1/ChemR23 protein expression and reduced levels of the inflammatory cytokine IL-6 in adipose tissue...
November 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29134976/uptake-of-zinc-by-pteridium-aquilinum-bracken-fern-and-response-of-clarias-gariepinus-juveniles-during-chronic-and-sub-lethal-exposure
#14
F E Olaifa, A A Fabusoro
Zinc is an essential trace element but can be toxic to fish at elevated concentrations. This study was carried out to assess the uptake of zinc by Clarias gariepinus juveniles and Pteridium aquilinum during chronic exposure to sub lethal concentrations. Two experiments were undertaken simultaneously in static renewal bioassays for 28 days.Haematology, histology, zinc accumulation in tissues of C.gariepinus and P. aquilinum were recorded fortnightly. Packed Cell Volume, haemoglobin concentration, Red Blood Cells, White blood cells, Lymphocytes, Neutrophils, Mean Corpuscular Volume, Mean Corpuscular Haemoglobin Concentration and Mean Corpuscular Haemoglobin of C...
June 30, 2017: Nigerian Journal of Physiological Sciences: Official Publication of the Physiological Society of Nigeria
https://www.readbyqxmd.com/read/29113951/editorial-special-issue-of-the-6th-european-workshop-on-lipid-mediators
#15
EDITORIAL
Dieter Steinhilber, Sönmez Uydeş Doğan, Gökçe Topal, Joan Clària, Xavier Norel, Nils Helge Schebb, Gerard Bannenberg
No abstract text is available yet for this article.
November 4, 2017: Prostaglandins & Other Lipid Mediators
https://www.readbyqxmd.com/read/29105936/circulating-cxcl10-in-cirrhotic-portal-hypertension-might-reflect-systemic-inflammation-and-predict-aclf-and-mortality
#16
Jennifer M Lehmann, Karina Claus, Christian Jansen, Alessandra Pohlmann, Robert Schierwagen, Carsten Meyer, Daniel Thomas, Steffen Manekeller, Joan Claria, Christian P Strassburg, Christian Trautwein, Hermann E Wasmuth, Marie-Luise Berres, Jonel Trebicka
BACKGROUND & AIMS: CXCR% ligands play an important role in hepatic injury, inflammation and fibrosis. While CXCL9 and CXCL11 are associated with survival in patients receiving transjugular intrahepatic portosystemic shunt (TIPS), the role of CXCL10 in severe portal hypertension remains unknown. METHODS: A total of 89 cirrhotic patients were analysed. CXCL10 protein levels were measured in portal and hepatic blood at TIPS insertion and 2 weeks later in 24 patients...
November 6, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/29057716/safety-assessment-on-microbial-and-heavy-metal-concentration-in-clarias-gariepinus-african-catfish-cultured-in-treated-wastewater-pond-in-kumasi-ghana
#17
Yeboah-Agyepong Mark, Amoah Philip, Agbo W Nelson, Ashley Muspratt, Samuel Aikins
This study assesses the microbial and heavy metal distribution in African catfish (Clarias gariepinus) cultured in waste stabilization pond, and their subsequent suitability for human consumption. Treated wastewater-fed pond (WFP) was used in the culture of the fish with a non-wastewater fed pond (NWFP), fed with ground and rain water as control. Pond water, sediments and fish tissue (gill, liver, gut and skin) samples from both sources were analyzed for pathogens and heavy metal levels. Escherichia coli populations in the sediments and water from the WFP exceeded the maximum permissible limit by 2-3 log units as expected...
October 23, 2017: Environmental Technology
https://www.readbyqxmd.com/read/29022141/a-new-species-of-trichodina-ehrenberg-1830-ciliophora-trichodinidae-infecting-farmed-clarias-gariepinus-burchell-siluriformes-clariidae-in-cuba
#18
Fernando Lucas Prats León, Mercedes Martínez Pérez
A new species of Trichodina Ehrenberg, 1830 collected from the skin and fins of farmed North African catfish Clarias gariepinus (Burchell) fingerlings, is described. The new species can be distinguished from other trichodinids by the characteristics of the adhesive disc, especially by the great number of denticles. Trichodina merciae n. sp. is morphologically similar to T. renicola (Mueller, 1931) and T. marplatensis Martorelli, Marcotegui & Alda, 2008, in the number of denticles, but differs in the morphometric data, denticle morphology, environment and location...
November 2017: Systematic Parasitology
https://www.readbyqxmd.com/read/29017851/seasonal-ovarian-immunolocalization-of-neuropeptide-y-and-its-role-in-steriodogenesis-in-asian-catfish-clarias-batrachus
#19
Priyadarshini, Bechan Lal
The present study was undertaken to examine the cellular localization and potential steroidogenic role of neuropeptide Y (NPY) in the ovary of the freshwater catfish, Clarias batrachus. NPY-immunoreaction was observed in the follicular cells (granulosa and thecal cells) in the growing ovarian follicles, and the intensity of staining increased steadily from the initiation of follicular development until follicles were fully grown. Thereafter as follicles matured the stain intensity decreased. Positive correlations were found between NPY expression and the ovarian levels of 17β-estradiol, testosterone, and activities of 3β-hydroxysteroid dehydrogenase (3β-HSD) and 17β-hydroxysteroid dehydrogenase (17β-HSD) in the ovary...
January 1, 2018: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28959625/human-health-risk-assessment-of-polycyclic-aromatic-hydrocarbons-pahs-in-smoked-fish-species-from-markets-in-southern-nigeria
#20
Isioma Tongo, Ozekeke Ogbeide, Lawrence Ezemonye
Polycyclic Aromatic Hydrocarbons (PAHs) levels in four commonly consumed smoked fish species from markets in Southern Nigeria were assessed to evaluate possible human health risks associated with consumption. Varying levels of PAH congeners were observed in the fish tissues with the highest total concentration of PAHs in Scomber scombrus. High concentrations of benzo(a)pyrene was observed in Clarias gariepinus and Ethmalosa fimbriata with values above the guideline value of 0.05 mg/kg. The Dietary Daily Intake (DDI) value for total PAHs (∑PAHs) was highest for S...
2017: Toxicology Reports
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