Are xenobiotics in the environment affecting fertility in Australian men?
R John Aitken, Niels E Skakkebaek and Shaun D Roman
(Medical Journal Australia Vol 185 No 8, 2006 http://mja.com.au/public/issues/185_08_161006/ait10048_fm.html)
“Current estimates suggest that one in twenty Australian men suffer some degree of infertility.”
Last sentence of article,
“In light of the extensive efforts that are being made in Europe and the US to monitor the effects of toxicants on reproductive processes, there is clearly pressure on the equivalent Australian authorities to establish whether environmental factors are to blame for the significant rates of testicular cancer and infertility seen in Australian males.”
An article written about Australian men, declining fertility, rising testicular cancer rates and environmental toxicants, especially endocrine disruptors.

Dr Alison Bleaney

Whilst the possible causes of lowered fertility rates in males is worrisome, this is good news for a planet that already cannot support and adequately feed current populations.

Sexist jokes do spring to mind, but I am not quite sure if this is really the time for flippancy!
Then again, why not?
Government approach - our beloved regulators -  to these issues certainly seems as such!!

DDT-related chemical linked to testicular cancer

By Will Dunham

WASHINGTON (Reuters) - A chemical that comes from the pesticide DDT may raise a man’s risk of developing testicular cancer, U.S. researchers said on Tuesday.

They found a clear link between testicular cancer and DDE, which is created when the body or the environment breaks down the pesticide DDT.

Men with the highest levels of DDE were 70 percent more likely to have developed testicular cancer than those with the lowest levels, according to the study published in the Journal of the National Cancer Institute.

DDT was banned in the United States in 1972 and other developed countries around the same time. It remains in use in some developing countries to fight malaria.

Massive amounts of DDT were used in farming and other applications, and DDE remains widespread in the environment.

Researchers led by Katherine McGlynn of the U.S. government’s National Cancer Institute examined blood samples provided by 739 men in the U.S. military with testicular cancer and 915 others who did not have it.

The link between DDE and cancer was particularly strong with a type of testicular cancer known as seminoma, which involves the sperm-producing germ cells of the testicles.

The researchers also found a somewhat lower increased risk for testicular cancer in men with higher levels of chemicals related to chlordane, which was used to kill termites and was banned in the United States in 1988.

Testicular cancer often appears in men in their 20s and 30s and is considered among the most curable cancers.

It has been increasing in recent decades in many countries. McGlynn said it is possible DDE could be a factor. She said the findings suggested about 15 percent of the testicular cancer cases in the men in the study could be attributed to DDE.

It is possible some of the men who later developed cancer of the testicles were exposed to DDE at very young ages - in the womb or through breastfeeding, the researchers said.

“In testicular cancer, there’s a fair amount of evidence that something is happening very early in life to increase risk,” McGlynn said in a telephone interview.

DDE remains ubiquitous in the environment even decades after DDT was being banned in the United States - and is present in about 90 percent of Americans, McGlynn said.

“The trouble with these chemicals is they hang around a long time. It’s in the food chain now,” McGlynn added. People who eat fish from contaminated areas can absorb it, for instance.

Most men with testicular cancer can be cured with surgery, radiation therapy and chemotherapy. The American Cancer Society said about 8,000 new cases will be diagnosed this year in the United States and about 380 men will die of it.

DDT was used during World War II to combat insect-borne diseases such as malaria in military and civilian populations, then gained wide agricultural and commercial usage.

Maternal Exposure To Persistent Organic Pollutants Linked To Urologic Conditions In Boys
ScienceDaily (May 17, 2008) — Higher incidences of congenital anomalies, including cryptorchidism (undescended testicles) and hypospadias, were found in boys whose mothers had higher serum levels of certain organochlorine compounds, researchers say.

full story at: http://www.sciencedaily.com/releases/2008/05/080515072828.htm

http://www.sciencenews.org/view/generic/id/33865/title/Farm_life_turns_male_toads_female

Farm life turns male toads female
By Janet RaloffJuly 3rd, 2008Web edition
Toads studied over a wide area are most affected near agriculture
GENDER HOPPING A new study of cane toads links proximity to agriculture with feminized — even intersex — males
Among toads living in farm country, gents tend to resemble the gals — both inside and out. This doesn’t bode well for the hoppers impressing local ladies, much less fathering their tadpoles.

Great studies but who is doing the equivalent in Australia?
DEW don’t seem to want to, even when pressed at the atrazine forum in Jube 2007. To paraphrase their response “A frog is a frog, why go study it if it seems OK right in front of you, so we just count them!”

It comes back to the ‘baseline data of the environm health of an area’ and there has been no agreement how to do that let alone do it.
There seems no incentive or will, Federally or at State level, to push this type of research.
Australia can and should be doing a lot, lot better; we haven’t even started looking at how many of our native species react to the chemicals used now for over 50 years.
Safe practice and ‘best world practice?

Dr Alison Bleaney