Archive for the ‘News’ Category

Potential mechanism for liver injury due to chronic alcohol consumption and hyperglycemia

Scientists from India have examined the roles of alcohol and high glucose levels on ethanol metabolizing enzymes and how such conditions can promote oxidative stress and cellular damage. Diabetes, characterized by the presence of inherent oxidative stress, may be further complicated by the additional oxidative stress generated due to the metabolism of alcohol.

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Chronic ethanol and high glucose inducible CYP2E1 mediated oxidative stress leads to greater cellular injury in VL-17A cells: a potential mechanism for liver injury due to chronic alcohol consumption and hyperglycemia
Kavitha Swaminathan, S. Mathan Kumar, Dahn L. Clemens and Aparajita Dey
Toxicol. Res., 2013, Advance Article, 2013 
DOI: 10.1039/C3TX50016K

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Interviewing Frederik-Jan van Schooten, Associate Editor for Toxicology Research

Toxicology research Associate Editor Frederik-Jan van SchootenFrederik-Jan van Schooten is a Professor of Genetic Toxicology at Maastricht University Medical Centre and is the Head of Department for the Department of Health Risk Analysis and Toxicology. As part of the Toxicology Research Editorial Board and one of the journal’s Associate Editors we took this opportunity to ask him a few questions:

1.         What led you to specialise in toxicology?

For the past 30 years I have been working in the field of chemical carcinogenesis and genetic toxicology. From the beginning of my scientific career it has fascinated me how chemical carcinogens induce cancer through damaging DNA and disrupting cellular control, especially how people differ in their response. The question why certain people have an increased susceptibility to chemical exposure and have an enhanced risk of getting cancer is intriguing to me. In toxicology it all comes together; chemical structures, biochemistry, biology, individual susceptibility for disease, and of course how to implement all this knowledge into assessing risks and onto policy making.

2.         What do you think are the most important developments in the field of toxicology at the moment?

Toxicology has grown into a real multidisciplinary discipline. It is not anymore describing phenomena by, for instance, treating animals with a chemical carcinogen and then counting the number of tumours that ultimately arise. Nowadays it is strongly orientated towards molecular mechanisms behind chemical exposures leading to disease by making use of state of the art technologies such as genomics, proteomics and metabolomics. Next to that is the emerging arena of the exposome that is the analytical challenge to judge a person’s lifetime exposure. An important development is the importance of knowing at what time during life we are exposed and especially the prenatal exposure window is increasingly becoming of interest via epigenetic imprinting. The following quote is still inspiring me: “What is it that is not a poison? All things are poisons and nothing is without poison. It is the dose only that makes a thing not a poison.” Who said this a long time ago? Right; Paracelsus, 1493-1541.

3.         How do you envisage toxicology research developing in the future?

Toxicology is developing into a real important and modern field of science that is highly relevant for society. It integrates all modern insights in science and the gained knowledge is increasingly important for an array of societal applications including refinement of risk assessment, replacement of animals in chemical testing and also applications in translational medicine by judging side effects of therapeutics.

4.         You’re one of the Associate Editors for Toxicology Research. What excites you most about your new role?

To say it bluntly, it is my desire to help to make Toxicology Research one of the leading journals dealing with chemical exposures and its effects in ecosystems to humans. I think that science should not be restricted to certain disciplines and that we can learn when crossing borders. And that we should use our imagination and creativity as much as possible to find solutions for the global environmental and societal problems we are facing. I am very proud to be part of a team that has the ambition to go beyond our self-imposed boundaries. Therefore I encourage the scientists to let loose their creativity and submit these papers to this inter-disciplinary journal.

5.         What advice would you give to the students who will be the next generation of scientists?

Research is very exciting. When I was a PhD student I remember how I biked to work in the morning, wondering what my experiment in the lab that night had done. I know that students first have to study hard to gain knowledge before becoming a scientist and sometimes this can be boring. But I advise them to push through because science is so exciting. Once a scientist, many times during the course of their experiments they may face troubles but it is very rewarding when the expectations come true. So, don’t give up because we need young and gifted people.

6.         If you weren’t a scientist, what would you be?

If possible something in a creative direction; perhaps an artist or actor. However I cannot imagine not being in science.

If you would like to submit an article to Toxicology Research, to be handled by Frederik-Jan, you can do so here on our submissions platform.

Don’t forget to follow us on Twitter and to sign up for our Table of Content Alerts & Newsletter.

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Toxicology Research issue 1, 2013, available online now!

The first issue of Toxicology Research for 2013 has arrived!

In this issue we have: An editorial from Nigel Gooderham, Editor in Chief and Richard Kelly, Managing Editor, looking back on 2012 and looking forward to 2013.

3 reviews:
S-Methyl-L-cysteine sulphoxide: the Cinderella phytochemical?

William M. B. Edmands, Nigel J. Gooderham, Elaine Holmes and Stephen C. Mitchell

In vitro models for liver toxicity testing
Valerie Y. Soldatow, Edward L. LeCluyse, Linda G. Griffith and Ivan Rusyn

Novel in vitro and mathematical models for the prediction of chemical toxicity
Dominic P. Williams et al.

3 Papers:

Triclosan interferes with the thyroid axis in the zebrafish (Danio rerio)
Patrícia I. S. Pinto, Eduarda M. Guerreiro and Deborah M. Power

Assessing confidence in predictions made by knowledge-based systems
Philip N. Judson, Susanne A. Stalford and Jonathan Vessey

Adult human exocrine pancreas differentiation to hepatocytes – potential source of a human hepatocyte progenitor for use in toxicology research
Matthew C. Wright et al.

Read all of these articles for free today.

Like what you read?

Submit your work to Toxicology Research now.

Ensure you keep up to date with the latest research published in the journal: sign up for the contents alerts and newsletter.

All articles published in 2012 and 2013 are free to access.

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Using transcriptomics to detect genotoxic and non-genotoxic renal carcinogens

Currently there is no in vitro system for the reliable detection of non-genotoxic carcinogens and the tests currently available for the detection of genotoxic carcinogens can have a low specificity. As such there is a need for the development of quick, cheap, sensitive and specific methods to detect the carcinogenic potential of chemicals.

In this paper Katarzyna M. Bloch (Liverpool John Moores University) and colleagues use toxicogenomics and NRK-52E cell lines to try and develop an in vitro system in renal cells to detect the carcinogenic potential of chemicals to the kidney.

Interested? Read the paper for free…

Detection of genotoxic and non-genotoxic renal carcinogens in vitro in NRK-52E cells using a transcriptomics approach
Katarzyna M. Bloch, Noreen Yaqoob, Andrew Evans, Robert Radford, Paul Jennings, Jan J. W. A Boei, Tara McMorrow, Craig Slattery, Michael P. Ryan, Hans Gmuender, Joost H. M. van Delft and Edward A. Lock
DOI: 10.1039/C2TX20023F

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Article Collection: Nanotoxicology

Over the last decade there has been a significant increase in the use of nanoparticles and nanomaterials in a wide range of applications but exactly how do these materials interact with humans? Since Toxicology Research was launched we have published a number of articles in this area and I thought I would highlight just some of them. All of these articles are free to access and if you like what you read why not submit your next research article to Toxicology Research?

A comparative study of cellular uptake and cytotoxicity of multi-walled carbon nanotubes, graphene oxide, and nanodiamond
Xiaoyong Zhang, Wenbing Hu, Jing Li, Lei Tao and Yen Wei, Toxicol. Res., 2012, 1, 62-68, DOI: 10.1039/C2TX20006F

Bioavailability and preliminary toxicity evaluations of alumina nanoparticles in vivo after oral exposure
Sheng-Tao Yang, Tiancheng Wang, Erya Dong, Xin-Xin Chen, Kun Xiang, Jia-Hui Liu, Yuanfang Liu and Haifang Wang, Toxicol. Res., 2012, 1, 69-74, DOI: 10.1039/C2TX20008B

A comparative cytotoxicity study of TiO2 nanoparticles under light and dark conditions at low exposure concentrations
Swayamprava Dalai, Sunandan Pakrashi, R. S. Suresh Kumar, N. Chandrasekaran and Amitava Mukherjee, Toxicol. Res., 2012, 1, 116-130, DOI: 10.1039/C2TX00012A

Evaluation of copper iodide and copper phosphate nanoparticles for their potential cytotoxic effect
Dipranjan Laha, Debalina Bhattacharya, Arindam Pramanik, Chitta Ranjan Santra, Panchanan Pramanik and Parimal Karmakar, Toxicol. Res., 2012, 1, 131-136, DOI: 10.1039/C2TX00009A

Toxicity of nano zinc oxide to mitochondria
Jia-han Li, Xiao-rong Liu, Yue Zhang, Fang-fang Tian, Guang-yuan Zhao, Qiu-li-yang Yu, Feng-lei Jiang and Yi Liu, Toxicol. Res., 2012, 1, 137-144, DOI: 10.1039/C2TX20016C

Estimation of human equivalent exposure from rat inhalation toxicity study of silver nanoparticles using multi-path particle dosimetry model
Jun Ho Ji and Il Je Yu, Toxicol. Res., 2012, 1, 206-210, DOI: 10.1039/C2TX20029E

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Also why not check out our Issues in Toxicology Books Series? Topics covered include hair in toxicology, toxicogenomics, reproductive toxicology particularly concentrating on male-mediated, biomarkers in toxicology, chemical contaminants in food, genotoxic carcinogens, insecticides, metabolomic profiling of disease, environmental cardiology, in silico toxicology, silver in healthcare and bile acids.

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Do you want to get involved in Toxicology Research?
  • Submit your latest research
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  • All articles published in 2012 and 2013 are free to access. Arrange for your free access by simply filling in this short online registration form
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Issue 3 of Toxicology Research: free to read online now

Issue 3 of Toxicology Research is here and ready for you to get your hands on.

On the front cover is a Paper from Gopal Chakrabarti and co-workers presenting the investigation into the target oriented molecular mechanism of the toxicity of acenaphthenequinone, a polyaromatic hydrocarbon present in diesel exhausts. Chakrabarti et al.demonstrate that acenaphthenequinone targets the microtubule cytoskeleton, and simultaneously activates mitochondria dependent cell death.

Acenaphthenequinone induces cell cycle arrest and mitochondrial apoptosis via disruption of cellular microtubules

Amlan Das, Diptiman Choudhury, Subhendu Chakrabarty, Abhijit Bhattacharya and Gopal Chakrabarti

Also featuring in this issue:

A review by C. David Williams and Hartmut Jaeschke on the role of innate and adaptive immunity during drug-induced liver injury

A paper from Ted Lock et al. using toxicogenomics to try and develop an in vitro system in renal cells to detect the carcinogenic potential of chemicals to the kidneys.

Detection of genotoxic and non-genotoxic renal carcinogens in vitro in NRK-52E cells using a transcriptomics approach
Edward A. Lock et al.

For all this and more, read the issue now for free…

Like what you read?

Submit your work to Toxicology Research now.
Ensure you keep up to date with the latest research published in the journal: sign up for the contents alerts and newsletter.

All articles published in 2012 and 2013 are free to access.

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Interview with Editorial Board member Dr William Pennie

Toxicology Research would like to welcome its newest member of the Editorial Board, Dr William Pennie, who has kindly answered a few questions to introduce himself to you, our readers.

1.    What led you to specialise in toxicology?
While I was at the NIH I had an interest in nuclear hormone receptor biology and in particular transcriptional regulation events mediated by these receptors. I was trained as a molecular biologist and never had any formal education in toxicology. When I was making the transition from academia to industry around 15 years ago, there were some very interesting scientific challenges in understanding the biology of xenoestrogens, particularly predicting tissue and species-specific effects associated with undesirable estrogenic activity.  This was a really easy transition for me to enter industry and to work at a phenomenally well-regard industrial lab (Central Toxicology Laboratory of Zeneca, in Macclesfield UK). Before I knew it I was drawn into biology problems that just happened to be labelled toxicology! My career then brought me closer to the realm of investigative toxicology, understanding the mechanisms by which individual compounds can cause adverse effects but more recently my interest in toxicology has been identifying multi-disciplinary solutions to the challenge of attempting to predict toxicity in the drug discovery process.

2.    What do you think are the most important developments in the field of toxicology at the moment?
The last few years have seen some concerted efforts in better data curation and accessibility across industry, academia and government labs. This has the promise of being very enabling, and could be fundamental in providing those of us looking to identify broad mechanisms of toxicity with well-curated compound lists we can use to mine for mechanisms and validate hypotheses. There have also been some very interesting developments in building panels of mechanistic screens that bring together assay developers, computational modellers and libraries of well-annotated compounds. The initiative of ToxCast and the IMI work are examples of this paradigm.

3.    What excites you most about your new role on the Editorial Board of Toxicology Research?
I love the idea of us helping to encourage a multi-disciplinary approach to understanding toxicity. I think we have an opportunity to encourage manuscripts that try to relate chemistry space to mechanism to phenotype. I’m fond of saying “multi-disciplinary problems need multi-disciplinary solutions” so perhaps Toxicology Research will give us an opportunity to help catalyze science that transcends any individual discipline.

4.    How do you envisage Toxicology Research developing in the future?
Like my previous example I’d love to see the journal help scientists to appreciate problems from multiple angles. I can easily imagine a future issue being of equal interest to toxicologists, pharmacologists, chemists and PKPD modellers.

5.    What advice would you give to the students who will be the next generation of scientists?
Develop collaborations with others as soon as possible. Almost everything I’ve been associated with doing in my career benefitted from collaborators with a different perspective or who bring a unique skill set to the table.

6.    If you weren’t a scientist, what would you be?
That’s a tough one! Since starting on my career path I’ve never been drawn to anything else but I certainly had aspirations to be a musician when I was in high school! All I was missing was musical talent. Seriously though,  I find that science just continues to become more satisfying the longer you spend working on it.

Toxicology Research is accepting submissions. All articles will be free to access until the end of 2013. Please contact the editorial office if you have any questions about the journal.

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If you want to find out about our articles once they’re published online why not sign up for the Toxicology Research RSS feed or Table of Contents alert.

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Issue 2 of Toxicology Research is now available for all to read for FREE!

Issue 2 of Toxicology Research is now available for all to read for FREE!

Featuring in this issue:

– A review by Joao B. T. Rocha et al. covering the extreme sensitivity of aminolevulinate dehydratase (δ-ALA-D)  to oxidation or inhibition by soft-electrophiles (Pb, Hg, etc) and pro-oxidant situations found in human pathologies, and discusses the fact that the enzyme can be considered a universal marker of oxidative stress.

Aminolevulinate dehydratase (δ-ALA-D) as marker protein of intoxication with metals and other pro-oxidant situations
Joao B. T. Rocha, Rogerio A. Saraiva, Solange C. Garcia, Fernanda S. Gravina and Cristina W. Nogueira

A paper by Amitava Mukherjee et al. exploring the difference in toxicity mechanism of TiO2 nanoparticles at low concentrations in a freshwater bacterial isolate, Bacillus licheniformis, under light (UV-illuminated) and dark (non-illuminated) conditions.

A comparative cytotoxicity study of TiO2 nanoparticles under light and dark conditions at low exposure concentrations
Swayamprava Dalai, Sunandan Pakrashi, R. S. Suresh Kumar, N. Chandrasekaran and Amitava Mukherjee

A paper by Heather Wallace et al. examining the influence of cyclo-oxygenase (COX) expression on the effects of naproxen on cytotoxicity and upon polyamine metabolism in human colorectal cancer cells in vitro.

Naproxen causes cytotoxicity and induces changes in polyamine metabolism independent of cyclo-oxygenase expression
Alun Hughes, Fiona R. Saunders and Heather M. Wallace

Read the issue now…

Like what you read?

  • Submit your work to Toxicology Research now.
  • Ensure you keep up to date with the latest research published in the journal: sign up for the contents alerts and newsletter.

All articles published in 2012 and 2013 are free to access.

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Issue 1 now published

Toxicology Research issue 1Just seven months after the launch announcement, the first issue of Toxicology Research is now available online. Showcasing the latest toxicology research, issue 1 includes reviews by Lawrence Lash on mitochondrial glutathione in toxicology and disease of the kidneys and by Catherine Priestley and colleagues at AstraZeneca in the UK, focusing on the emerging field of epigenetics and its relevance to drug safety.

  
And there’s no need to worry about getting access to the latest toxicology research. All articles published in 2012 and 2013 are free to access online to all individuals who have signed up for an RSC Publishing Personal Account, and to all existing RSC customers with an IP address registered. Read the issue now.  

 
Like what you read? Submit your work to Toxicology Research now. Plus, ensure you keep up to date with the latest research published in the journal: sign up for the contents alerts and newsletter.

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21st Century Toxicology – Thomas Hartung in Chemistry World

Thomas Hartung, author of a recently published Toxicology Research review has appeared in the magazine Chemistry World.

Photo of Thomas HartungHartung writes an opinion piece discussing the future of regulatory toxicology, especially looking at the US and how the new ‘pathways of toxicity’ approach there will improve the safety of consumer products and other chemicals. Read the full article to find out more about integrated testing strategies and organ models on microfluidic chips by visiting the Chemistry World website.

Want to read more from Thomas Hartung? Download his review on Validation and quality control of replacement alternatives – current status and future challenges

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Don’t forget to sign up to e-alerts, so you can keep up to date with Toxicology Research, a new multi-disciplinary journal from RSC Publishing that covers the best research in both fundamental and applied aspects of toxicology.

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