Ultimate Carcinogenic Metabolites from Aromatic and Heterocyclic Aromatic Amines: A Computational Study in Relation to Their Mutagenic Potency

February 1st, 2007


Ultimate Carcinogenic Metabolites from Aromatic and Heterocyclic Aromatic Amines: A Computational Study in Relation to Their Mutagenic Potency

Gabriela L. Borosky
Web Release Date: Tue, 30 Jan 2007 00:00:00 EST (Article) DOI: 10.1021/tx600278q


EU Parliament adopts REACH - new EU chemicals legislation and new chemicals agency

December 13th, 2006

Details here:

http://www.europarl.europa.eu/news/expert/infopress_page/064-1496-345-12-50-911-20061213IPR01493-11-12-2006-2006-true/default_en.htm

A good day for…. unscrupulous public health pundits, consultant toxicologists (hihi), the box-ticking mentality, mindless socialism.

A bad day for… about 9 million animals who will be intentionally and needlessly poisoned, scientific reason, Europe’s credibility.

 


Green emerges triumphant over industry in latest REACH wrangle

November 1st, 2006

Green emerges triumphant over industry in latest REACH wrangle

Mmmm, not much to be triumphant about really….

The EU Parliament must maintain it’s credibility in the face of the potential damage to European competitiveness, and the pressure to ratify this legislation by the end of the year. Voting for the increased restrictions, the Sacconi Proposals, means concilliation, and that means another delay in implementation.

They’ve surely copped-it by now that, what in spirit is a very worthy piece of legislation, has become corrupted into an expensive eurocratic papermill.  Ultimately, we stifle innovation, and logically derived risk management, through the smokescreen of hazard-based precaution.

These proposals are simply unworkable.

Meanwhile, the inherent contradiction of the REACH legislation - a significant increase in enforced and unnecessary animal testing without decisive action on the mandated drive to reduce such testing - remains yet another embarrassing pimple for the EU ‘pro-ject’.

What could have been a model for a workable risk-based, and thus far more effective, system has been reduced to a slanging match with pitiful displays of triumphalism.

A ‘Hall of Shame’ is sure to follow….


Petrochemistry - an interactive overview

September 8th, 2006

There is a very nice, informative poster issued by APPE which they have turned into an interactive flash presentation. If you have ever doubted the ubiquity of petrochemicals in day-to-day life, then this will be a real eye-opener.

Have a look at: www.petrochemistry.net/flowchart


Future of Toxicology-Predictive Toxicology

September 6th, 2006


Future of Toxicology-Predictive Toxicology: An Expanded View of “Chemical Toxicity”

Ann M. Richard
Web Release Date: Sat, 2 Sep 2006 EDT (Article) DOI: 10.1021/tx060116u

Abstract: A chemistry approach to predictive toxicology relies on structure-activity relationship (SAR) modeling to predict biological activity from chemical structure. Such approaches have proven capabilities when applied to well-defined toxicity end points or regions of chemical space. These approaches are less well-suited, however, to the challenges of global toxicity prediction, i.e., to predicting the potential toxicity of structurally diverse chemicals across a wide range of end points of regulatory and pharmaceutical concern. New approaches that have the potential to significantly improve capabilities in predictive toxicology are elaborating the “activity” portion of the SAR paradigm. Recent advances in two areas of endeavor are particularly promising. Toxicity data informatics relies on standardized data schema, developed for particular areas of toxicological study, to facilitate data integration and enable relational exploration and mining of data across both historical and new areas of toxicological investigation. Bioassay profiling refers to large-scale high-throughput screening approaches that use chemicals as probes to broadly characterize biological response space, extending the concept of chemical “properties” to the biological activity domain. The effective capture and representation of legacy and new toxicity data into mineable form and the large-scale generation of new bioassay data in relation to chemical toxicity, both employing chemical structure information to inform and integrate diverse biological data, are opening exciting new horizons in predictive toxicology.


Classification and labelling of chemicals

September 6th, 2006

Classification and labelling of chemicals
The European Commission has launched an Internet Consultation on a proposed Regulation on the Classification and Labelling of chemicals based on the United Nations Globally Harmonised System (GHS).


Update - Chemicals Policy review (REACH)

August 10th, 2006

Chemicals Policy review (REACH)
On 29 October 2003, the Commission presented its proposals for a complete and radical review of the EU’s chemical substances policy. The proposal sets up a comprehensive system for the registration, evaluation, authorisation of chemicals (REACH). It still needs to be approved by the Council and the European Parliament.


HSE - Asthmagen? Critical assessments of the evidence for agents implicated in occupational asthma

August 10th, 2006

Asthmagen? Critical assessments of the evidence for agents implicated in occupational asthma

This compendium originally comprised 32 such assessments when it was published in 1997, reported in a standard format and arranged alphabetically by common name. A further 12 assessments were added with publication of a Supplement in 1998. The 2001 Supplement comprises an additional 16 assessments.

Read the Asthmagen compendium


Tiny inhaled particles take easy route from nose to brain

August 2nd, 2006

Tiny inhaled particles take easy route from nose to brain
University of Rochester Medical Center scientists showed that when rats breathe in nano-sized materials they follow a rapid and efficient pathway from the nasal cavity to several regions of the brain


HSE - Proposals to implement the second list of indicative occupational exposure limit values (European Directive 2006/15/EC)

August 1st, 2006

Proposals to implement the second list of indicative occupational exposure limit values (European Directive 2006/15/EC)

This Consultative Document sets out the Health and Safety Commission’s (HSC’s) proposals for establishing Workplace Exposure Limits (WELs) for the 33 substances listed in the Directive.
Consultation ends: 27 September 2006

Read the full consultation document [PDF 300kb]