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26 Jul

Posted at 21:19h in by
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[vc_row row_type="row" use_row_as_full_screen_section="no" type="full_width" angled_section="no" text_align="left" background_image_as_pattern="without_pattern" css_animation=""][vc_column][vc_column_text]The US Environmental Protection Agency (US EPA) continues to drive significant efforts in the United States to modernize the battery of acute toxicity tests classically known as the “6-pack.” Known for many years as an “all in vivo”...

23 Jul

Posted at 20:18h in Uncategorized by
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Read our latest publication with Bristol-Myers Squibb regarding a tiered testing strategy for occupational hazards of pharmaceutical intermediates now published in the Cutaneous and Ocular Toxicology Journal. Irritation reactions are a frequently reported occupational illness. The potential adverse effects of pharmaceutical compounds (PCs) on employees' eyes and...

16 Oct

Posted at 16:24h in Uncategorized by
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[vc_row css_animation="" row_type="row" use_row_as_full_screen_section="no" type="full_width" angled_section="no" text_align="left" background_image_as_pattern="without_pattern"][vc_column][vc_column_text css=""]Oct 16, 2017 This 13-minute training video demonstrates how to perform the BCOP assay according to the Test Guidelines for the assay set forth by the Organization for Economic Co-operation and Development (OECD TG 437). The video focuses...

18 Oct

Posted at 18:45h in Uncategorized by
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[vc_row css_animation="" row_type="row" use_row_as_full_screen_section="no" type="full_width" angled_section="no" text_align="left" background_image_as_pattern="without_pattern"][vc_column][vc_column_text css=""]Oct 18, 2016 This one-hour webinar, led by IIVS Director of Quality and Compliance, introduces some of the concepts of Good Laboratory Practices (GLPs) designed to promote study and data integrity within an in vitro toxicology framework. Applying these...

24 Aug

Posted at 15:42h in by
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[vc_row css_animation="" row_type="row" use_row_as_full_screen_section="no" type="full_width" angled_section="no" text_align="left" background_image_as_pattern="without_pattern"][vc_column width="2/3"][vc_column_text]The Ocular Irritection Assay is an in chemico eye irritation assay that detects, ranks, and predicts the corneal irritation potential of a test material. The assay assesses changes to the reagent solution (containing proteins, glycoproteins, lipids), which mimics the denaturation and disruption that occurs in corneal proteins in vivo.

24 Aug

Posted at 15:41h in by
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[vc_row css_animation="" row_type="row" use_row_as_full_screen_section="no" type="full_width" angled_section="no" text_align="left" background_image_as_pattern="without_pattern"][vc_column width="2/3"][vc_column_text]The Short Time Exposure (STE) assay, developed by Kao Corporation (Japan), is an in vitro assay used to assess acute eye irritation potential as an alternative to the traditional in vivo Draize test.  The test method evaluates the cytotoxicity induced by a series of test chemical dilutions in a monolayer of rabbit corneal fibroblasts (Statens Seruminstitut Rabbit Cornea – SIRC) after a single five-minute exposure.

24 Aug

Posted at 15:41h in by
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[vc_row css_animation="" row_type="row" use_row_as_full_screen_section="no" type="full_width" angled_section="no" text_align="left" background_image_as_pattern="without_pattern"][vc_column width="2/3"][vc_column_text]Many personal care and cosmetic products accidentally contact the eye, which is very sensitive to numerous compounds that would otherwise be benign when applied to the skin.  Due to the pain and stinging that is perceived, it is important for manufacturers of these products to be aware of the potential pain perceived should eye contact occur.

24 Aug

Posted at 15:38h in by
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[vc_row css_animation="" row_type="row" use_row_as_full_screen_section="no" type="full_width" angled_section="no" text_align="left" background_image_as_pattern="without_pattern"][vc_column width="2/3"][vc_column_text]Corneal recovery is a key property of ocular irritation classification schemes used in the regulatory arena. However, no current validated non-animal ocular irritation test methods or prediction tools are able to predict corneal recovery in a manner consistent with the animal tests historically employed. Whereas some efforts have been made to demonstrate recovery with in vitro or ex vivo corneal models, the current state of these technologies do not support demonstration of recovery of the corneal stromal elements, which are key to discriminate between moderate and severe irritants.

24 Aug

Posted at 15:37h in by
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[vc_row css_animation="" row_type="row" use_row_as_full_screen_section="no" type="full_width" angled_section="no" text_align="left" background_image_as_pattern="without_pattern"][vc_column width="2/3"][vc_column_text]The Eye Irritation Test (EIT) is an OECD-approved in vitro non-animal test method for identifying chemicals and mixtures that may be irritating to the corneal epithelium.  The test method utilizes an in vitro reconstructed human corneal epithelium (RhCE) model (EpiOcular™, MatTek Corp. or HCE, SkinEthic™), in an acute exposure assay to support international regulatory labeling requirements, according to the United Nations Globally Harmonized System of Classification and Labelling of Chemicals (UN GHS).

24 Aug

Posted at 15:37h in by
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[vc_row css_animation="" row_type="row" use_row_as_full_screen_section="no" type="full_width" angled_section="no" text_align="left" background_image_as_pattern="without_pattern"][vc_column width="2/3"][vc_column_text]The BCOP (Bovine Corneal Opacity and Permeability) assay is an in vitro eye irritation test method developed by Gautheron et al. (1992), which uses living bovine corneal tissue, obtained as a by-product from abattoirs, to evaluate the potential ocular irritancy of a test article. Types of injury caused by exposure to the test article are quantitatively measured by changes in opacity and permeability to fluorescein.