Niyogi, Som

Professor

Som Niyogi

Department of Biology
University of Saskatchewan, 112 Science Place
Saskatoon, Saskatchewan, Canada
S7N 5E2

Phone: 306-966-4453

Email: som.niyogi@usask.ca


Academic Degrees

  • M.Sc. (Calcutta), Ph.D. (Calcutta)

Current Teaching

  • BIOL 224.3 Animal Body Systems
  • TOX 301.3 Environmental Toxicology
  • BIOL 898.3 Physiological Toxicology

Research Interests

  • Physiological and moelcualr mechanisms of uptake, metabolism and toxicity of metals/metal-mixtures in aquatic animals
  • Development and validation of approaches/tools for risk assessments of metals in the aquatic ecosystems
  • Assessment of population level effects of industrial metal pollution in the Canadian sub-Arctic and high Arctic

Publications

Y. Saibu, S. Kumar, A. Jamwal, D. Peak, S. Niyogi. 2018. A FTIRM study of the interactive effects of metals (zinc, copper and cadmium) in binary mixtures on the biochemical constituents of the gills in rainbow trout (Oncorhynchus mykiss). Comparative Biochemistry and Physiology Part C 211, 48-56

Y. Saibu, A. Jamwal, R. Feng, D. Peak, S. Niyogi. 2018. Distribution and speciation of zinc in the gills of rainbow trout (Oncorhynchus mykiss) during acute waterborne zinc exposure: Interactions with cadmium or copper. Comparative Biochemistry and Physiology Part C 206-207, 23-31.

M. Naderi, A. Salahinejad, M. Ferrari, S. Niyogi, D.P. Chivers. 2018. Dopaminergic dysregulation and impaired associative learning behavior in zebrafish during chronic dietary exposure to selenium. Environmental Pollution 237, 174-185.

A. Jamwal, D. Lemire, M. Driessnack, M. Naderi, S. Niyogi. 2018. Interactive effects of chronic dietary selenomethionine and cadmium exposure in rainbow trout (Oncorhynchus mykiss): A preliminary study. Chemosphere 197, 550-559

S. Amuno, A. Jamwal, B. Grahn, S. Niyogi. 2018. Chronic arsenicosis and cadmium exposure in wild snowshoe hares (Lepus americanus) breeding near Yellowknife, Northwest Territories (Canada), Part I: Evaluation of oxidative stress, antioxidant activities and hepatic damage. Science of the Total Environment 618, 916-926. 

S. Amuno, A. Al Kaissi, A. Jamwal, S. Niyogi, C. Quenneville. 2018. Chronic arsenicosis and cadmium exposure in wild snowshoe hares (Lepus americanus) breeding near Yellowknife, Northwest Territories (Canada), Part 2: Manifestation of bone abnormalities and osteoporosis. Science of the Total Environment 612, 1559-1567.  

M. Naderi, A. Salahinejad, A. Jamwal, D.P. Chivers, S. Niyogi. 2017. Chronic dietary selenomethionine exposure induces oxidative stress, dopaminergic dysfunction, and cognitive impairment in adult zebrafish (Danio rerio). Environmental Science and Technology 51, 12879-12888.

K. Shekh, S. Tang, S. Niyogi, M. Hecker. 2017. Expression stability and selection of optimal reference genes for gene expression normalization in early life stage rainbow trout exposed to cadmium and copper. Aquatic Toxicology 190, 217-227. 

M.K. Driessnack, A. Jamwal, S. Niyogi. 2017. Effects of chronic exposure to waterborne copper and nickel in binary mixture on tissue-specific metal accumulation and reproduction in fathead minnow (Pimephales promelas). Chemosphere 185, 964-974.

A. Jamwal, S. Niyogi. 2017. Dose and chemical species-specific effects of selenium against arsenide toxicity in cultured hepatocytes of rainbow trout (Oncorhynchus mykiss). Metallomics, 9, 744-756.

M.K. Driessnack, A. Jamwal, S. Niyogi. 2017. Effects of chronic waterborne cadmium and zinc interactions on tissue-specific metal accumulation and reproduction in fathead minnow (Pimephales promelas). Ecotoxicology and Environmental Safety 140, 65-75

S. Niyogi, T.A. Blewett, T. Gallagher, S. Fehsenfeld, C.M. Wood. 2016. Effects of salinity on short-term zinc uptake, accumulation and sub-lethal toxicity in the green shore crab (Carcinus maenas). Aquatic Toxicology 178, 132-140

C.N. Glover, S. Niyogi, T.A. Blewett, C.M. Wood. 2016. Iron transport across the skin and gut epithelia of Pacific Hagfish: Kinetic characterization and effect of hypoxia. Comparative Biochemistry and Physiology Part A 199, 1-7

S. Amuno, S. Niyogi, M. Amuno, J. Attitaq. 2016. Heavy metal accumulation and histopathological alterations in wild arctic hares (Lepus arcticus) inhabiting a former lead-zinc mine in the Canadian High Arctic: A preliminary study. Science of the Total Environment 556, 252-263.

M.K. Driessnack, A.L. Matthews, J.C. Raine, S. Niyogi. 2016. Interactive effects of chronic waterborne copper and cadmium exposure on tissue-specific metal accumulation and reproduction in fathead minnow (Pimephales promelas). Comparative Biochemistry and Physiology Part C 179, 165-173.

M. Naderi, A. Jamwal, D. Chivers, S. Niyogi. 2016. Modulatory effests of dopamine receptors on associative learning performance in zebrafish (Danio rerio). Behavioural Brain Research 303, 109-119.

M. Naderi, A. Jamwal, M. Ferrari, S. Niyogi, D. Chivers. 2016. Dopamine receptors participate in the acquisition and consolidation of latent learning of spatial information in zebrafish (Danio rerio). Progress in Neuro-Psychopharmacology & Biological Psychiatry 67, 21-30.

A. Jamwal, M. Naderi, S. Niyogi. 2016. An in vitro examination of selenium-cadmium antagonism using primary cultures of rainbow trout (Oncorhynchus mykiss) hepatocytes. Metallomics 8, 218-227.

S. Niyogi, S.R. Nadella, C.M. Wood. 2015. Interactive effects of waterborne metals in binary mixtures on short-term gill-metal binding and ion uptake in rainbow trout (Oncorhynchus mykiss). Aquatic Toxicology 165, 109-119.

T.A. Blewett, C.N. Glover, S. Fehsenfeld, M.J. Lawrence, S. Niyogi, G.G. Goss, C.M. Wood. 2015. Making sense of nickel accumulation and sub-lethal toxic effects in saline waters: Fate and effects of nickel in the green crab, Carcinus maenas. Aquatic Toxicology 164, 23-33.

A. Manek, M. Ferrari, D. Chivers, S. Niyogi. 2014. Dissolved organic carbon ameliorates the effects of UV radiation on a freshwater fish. Science of the Total Environment 490, 941-946.

Y. Wang, M. Ferrari, Z. Hoover, A. Yousafzai, D. Chivers, S. Niyogi. 2014. The effects of chronic exposure to environmentally relevant levels of waterborne cadmium on reproductive capacity and behaviour in fathead minnows. Archives of Environmental Contamination and Toxicology 67, 181-191.

S. Niyogi, K.V. Brix, M. Grosell. 2014. Effects of chronic waterborne nickel exposure on growth, ion homeostasis, acid-base balance, and nickel uptake in the freshwater pulmonate snail, Lymnaea stagnalis. Aquatic Toxicology 150, 36-44.

B.D. Hall, J.L. Doucette, L.M. Bates, A. Bugajski, S. Niyogi, C.M. Somers. 2014. Differential trends in mercury concentrations in Double-Crested Cormorant populations of the Canadian Prairies. Ecotoxicology 23, 419-428.

A. Manek, M. Ferrari, S. Niyogi, D.P. Chivers. 2014. The interactive effects of multiple stressors on physiological stress responses and club cell investment in fathead minnows. Science of the Total Environment 476-477, 90-97.

P. Chakbaborty, A.K. Manek, S. Niyogi, J. Hudson. 2014. Determination of dynamic metal complexes and their diffusion coefficients in the presence of different humic substances by combining two analytical techniques. Analytical Letters 47, 1224-1241.

J.D. Ouellet, M.G. Dube, S. Niyogi. 2013. The influence of elevated alkalinity and natural organic matter (NOM) on tissue-specific metal accumulation and reproductive performance in fathead minnows during chronic, multi-trophic exposures to a metal mine effluent. Ecotoxicology and Environmental Safety 95, 104-112.

J.D. Ouellet, M.G. Dube, S. Niyogi. 2013. The influence of food quantity on metal bioaccumulation and reproduction in fathead minnows (Pimephales promelas) during chronic exposures to a metal mine effluent. Ecotoxicology and Environmental Safety 91, 188-197.

J.D. Ouellet, M.G. Dube, S. Niyogi. 2013. A single metal, metal mixture, and whole-effluent approach to investigate causes of metal mine effluent effects on fathead minnows (Pimephales promelas). Water, Air, & Soil Pollution 224(3), 1-19.

R.W. Kwong, C. Hamilton, S. Niyogi. 2013. Effects of elevated dietary iron on the gastrointestinal expression of Nramp genes and iron homeostasis in rainbow trout (Oncorhynchus mykiss). Fish Physiology and Biochemistry 39, 363-372.

S. Misra, R.W. Kwong, S. Niyogi. 2012. Transport of selenium across the plasma membrane of primary hepatocytes and enterocytes of rainbow trout. Journal of Experimental Biology 215, 1491-1501.

S. Misra, C. Hamilton, S. Niyogi. 2012. Induction of oxidative stress by selenomethionine in isolated hepatocytes of rainbow trout (Oncorhynchus mykiss). Toxicology in Vitro 26, 621-629.

S. Misra, D. Peak, N. Chen, C. Hamilton, S. Niyogi. 2012. Tissue-specific accumulation and speciation of selenium in rainbow trout (Oncorhynchus mykiss) exposed to elevated dietary selenomethionine. Comparative Biochemistry and Physiology Part C 155, 560-565.

A. Manek, M.C. Ferrari, J.M. Sereda, S. Niyogi, D.P. Chivers. 2012. The effects of UV radiation on a freshwater prey fish: physiological stress response, club cell investment and alarm cue production. Biological Journal of the Linnean Society 105, 832-841.

R.W. Kwong, S. Niyogi. 2012. Cadmium transport in isolated enterocytes of freshwater rainbow trout: interactions with zinc and iron, effects of complexation with cysteine, and an ATPase-coupled efflux. Comparative Biochemistry and Physiology Part C 155, 238-246. 

L.D. Rozon-Ramilo, M.G. Dube, A.J. Squires, S. Niyogi. 2011. Examining waterborne and dietborne routes of exposure and their contribution to biological response patterns in fathead minnow (Pimephales promelas). Aquatic Toxicology 105, 466-481.

J.C. McGeer, S. Niyogi, D.S. Smith. 2011. Cadmium. In Homeostasis and Toxicology of Non-Essential Metals: FISH PHYSIOLOGY Volume 31B. pp. 125-184. C.M. Wood, A.P. Farrell and C.J. Brauner (Eds). Elsevier.

L.D. Rozon-Ramilo, M.G. Dube, C.J. Rickwood, S. Niyogi. 2011. Examining the effects of metal mining mixtures on fathead minnow (Pimephales promelas) using field-based multi-trophic artificial streams. Ecotoxicology and Environmental Safety 74, 1536-1547.

R.W. Kwong, J.A. Andrés, S. Niyogi. 2011. Effects of dietary cadmium exposure on tissue-specific cadmium accumulation, iron status and expression of iron-handling and stress-inducible genes in rainbow trout: Influence of elevated dietary iron. Aquatic Toxicology 102, 1-9.

R.W. Kwong, J.A. Andrés, S. Niyogi. 2010. Molecular evidence and physiological characterization of iron absorption in isolated enterocytes of rainbow trout (Oncorhynchus mykiss): Implications for dietary cadmium and lead absorption. Aquatic Toxicology 99, 343-350.

S. Misra, D. Peak, S. Niyogi. 2010. Application of XANES spectroscopy in understanding the metabolism of selenium in isolated rainbow trout hepatocytes: insights into selenium toxicity. Metallomics 2, 710-717.

S. Misra, S. Niyogi. 2009. Selenite causes cytotoxicity in rainbow trout (Oncorhynchus mykiss) hepatocytes by inducing oxidative stress. Toxicology in Vitro 23, 1249-1258.

R.W. Kwong, S. Niyogi. 2009. The interactions of iron with other divalent metals in the intestinal tract of a freshwater teleost, rainbow trout (Oncorhynchus mykiss). Comparative Biochemistry and Physiology Part C 150, 442-449.

S. Niyogi, R. Kent, C.M. Wood. 2008. Effects of water chemistry variables on gill binding and acute toxicity of cadmium in rainbow trout (Oncorhynchus mykiss): A biotic ligand model (BLM) approach. Comparative Biochemistry and Physiology Part C 148, 305-314.

R.W. Kwong, S. Niyogi. 2008. An in vitro examination of intestinal iron absorption in a freshwater teleost, rainbow trout (Oncorhynchus mykiss). Journal of Comparative Physiology 178B: 963-975.

S. Niyogi, G.G. Pyle, C.M. Wood. 2007. Branchial versus intestinal zinc uptake in wild yellow perch (Perca flavescens) from reference and metal-contaminated aquatic ecosystems. Canadian Journal of Fisheries and Aquatic Sciences 64, 1605-1613

S. Niyogi, C. Kamunde, C.M. Wood. 2006. Food selection, growth and physiology in relation to dietary sodium chloride content in rainbow trout (Oncorhynchus mykiss) under chronic waterborne copper exposure. Aquatic Toxicology 77, 210-221.

S. Niyogi, C.M. Wood. 2004. The Biotic Ligand Model, a flexible tool for developing site-specific water quality guidelines for metals. Environmental Science and Technology 38, 6177-6192.

S. Niyogi, C.M. Wood. 2004. Kinetic analyses of waterborne calcium and cadmium transport and their interactions in the gills of rainbow trout (Oncorhynchus mykiss) and yellow perch (Perca flavescens), two fish species differing greatly in acute cadmium sensitivity. Journal of Comparative Physiology 174B, 243-253.