What’s New?

March 2003

  • National Contaminants Program: Canadian Arctic Contaminants Assessment Symposium – Ottawa, March 4-7 2003 http://www.ainc-inac.gc.ca/ncp/index_e.html
  • The National Contaminants Program (NCP) has recently released a second comprehensive evaluation (The Canadian Arctic Contaminants Assessment Report – CACAR II) of the impact of contaminants such as PCPs, dioxins, mercury and many others on biotic and abiotic environments in the North. To learn more about the results from this report, visit Workshops- under Science and Issues.

February 2003

  • Second National Report on Human Exposure to Environmental Chemicals http://www.cdc.gov/exposurereport/
  • The CDC has recently released a report “Second National Report on Human Exposure to Environmental Chemicals” on the levels of contamination of the American population to a very wide range of substances including many that have been labeled endocrine disrupters. This report is the second in a series of publications that provide an ongoing assessment of the exposure of the U.S. population to environmental chemicals using biomonitoring.
  • Occupation and risk of ovarian cancer – under “Research Summaries”. In an article published in the journal American Journal Indian Medicine, Shields et al investigate the association between occupation and risk of ovarian cancer
  • Bioaccumulation or biomagnification is the process by which contamination of the environment by persistent chemicals, including endocrine disrupters and other toxicants, leads to the accumulation of these chemicals by an entire ecosystem. To learn more about this issue visit Bioaccumulation – under “Endocrine Disruption”.
  • Exposure to persistent organic pollutants and risk of testicular cancer – under “Research Summaries”. In an article published in the journal Environmental Health Perspectives, Hardell et al investigate the association between maternal exposure to PCBs, hexachlorobenzene and chlordane and the development of testicular cancer in male offspring.
  • Organochlorines and breast cancer risk – under “Research Summaries”. In an article published in the journal Cancer Causes and Control, Woolcott et al investigate the association between organochlorines in breast adipose tissue and different subtypes of breast cancer.

January 2003

  • Human health concerns may develop following exposure to an environmental toxicant during critical periods of development. Gestation, adolescence and other stages of life characterized by changes to organ systems may be susceptible to chemical exposure. To learn more about this issue visit Critical windows of exposure- under “Endocrine Disruption”.
  • The EM-COM team includes talented scientists from both government and academia. We have updated their profiles and included representative publications for your interest. To meet our team visit Project Team – under “About This Site”.
  • Anthropogenic”, “hypospadias”, “cryptorchidism”… have we lost you yet? Discussions about endocrine disruption require an understanding of the scientific terminology. For definition of terms used within the site please visit the “Glossary”.
  • Serum PCB levels and semen quality – under “Research Summaries”. In an article published in the journal Human Reproduction, Dallinga et al investigate gene-environment interactions to determine how serum PCB levels affect semen quality.
  • Parental pesticide use in the Philippines and the risk of birth defects and spontaneous abortion – under “Research Summaries”. In an article published in the International Journal of Occupational and Environmental Health, Crisostomo and Molina investigate the risk of birth defects and spontaneous abortions following parental pesticide exposure.
  • Maternal DDT/DDE exposure and risk of birth defects in male offspring – under “Research Summaries”. In an article recently published in the American Journal of Epidemiology, Longnecker et al investigate the frequency of birth defects such as cryptorchidism, hypospadias, and polythelia in boys following maternal DDT/DDE exposure.

December 2002

Bibliography – new database resource is now available. Search our extensive publications database by author(s), title, keywords or specific health concern.
November 2002

  • Thyroid Hormones are key regulators of metabolism. Disruption of thyroid homeostasis, particularly during fetal development, can lead to impaired cognitive function in children. To find out more about thyroid hormones and the consequences of endocrine disruption during development read our newly posted fact sheet under ‘Health Concerns’.
  • Research Summaries reorganized by health concern topic. Recent scientific findings published in key journals are summarized for better understanding of the research on endocrine modulation. Useful links to the original PubMed abstracts are also provided for each research summary.
  • Parental organochlorine exposure and offspring sex ratio – under “Research Summaries”. In an article recently published in the Journal of Occupational and Environmental Medicine, Karmaus et al. suggest that high paternal PCB levels following consumption of PCB-contaminated fish may increase the chances of fathering a son.
  • Endocrine disrupting effects of cigarette smoke and risk of breast cancer – under “Research Summaries”. In an article recently published in the journal Lancet, Band et al. suggest that cigarette smoke may exert an anti-estrogenic effect in post-menopausal women.
  • What do we mean by semen quality? What are male reproductive tract abnormalities? Basic information about each of the key health concerns is now available.

October 2002

  • Prostate Cancer Overview – under “Overview Documents” we provide a thorough examination of the state-of-the-science on key health concerns
  • Testicular Cancer – under “Health Concerns” we provide an updated summary of the incidence, risks and association between environmental chemicals and testicular cancer
  • Workshops and Reports – this section provides summaries of workshops, policies and reports on the subject of endocrine modulation
  • Sources of Endocrine Modulation – this section provides information about potential sources of endocrine active chemicals
  • Endocrine Modulation in Nature – this section provides information about the effects of endocrine modulation in wildlife species

September 2002

  • Endocrine Primer – improved to provide general information on the endocrine system and endocrine modulation
  • Health Concerns – endometrial cancer fact sheet now available
  • Ask A Scientist – feel free to ask questions, make comments and a member of our expert panel of scientists will provide the answers

August 2002

  • Bibliography – now available in two formats- alphabetical and by health concern. EMCOM has compiled this resource list to assist you in accessing other relevant information on endocrine modulation.
  • Research Summaries – recent scientific findings on the subject of endocrine modulation are summarized here
  • Health Concerns – Endocrine active compounds (EACs) have been linked by some to a wide variety of adverse reproductive/developmental health outcomes in humans. Under “Health Concerns” we provide updated information on the following topics: breast cancer, endometriosis, fecundity and fertility, increased rates of spontaneous abortion, sex ratios, ovarian cancer , prostate cancer, declining semen quality, male reproductive tract abnormalities, precocious puberty.