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Safeguard backyard ecosystems
Cornell University
Moderate levels of artificial light at night -- like the fixture illuminating your backyard -- bring more caterpillar predators and reduce the chance that these lepidoptera larvae grow up to become moths and serve as food for larger prey.
This ecological impact was demonstrated in
a new Cornell University study published in the Proceedings of the
Royal Society B: Biological Sciences.
The scientists placed more than 550
lifelike caterpillar replicas made of soft clay in a forest, setting to
ascertain how the mockups were attacked and hunted by predators compared to a
control group.
Women who switched to paraben- and phthalate- free shampoos, lotions, soaps and deodorants had fewer cancer-associated changes to breast tissue cells.
Ashley James for the Environmental Health News
Switching to phthalate and paraben-free personal care products could reduce the risk of developing breast cancer, according to new research.
It's well established that high estrogen exposure is a major breast cancer risk factor.
Endocrine-disrupting chemicals that mimic estrogen, also known as xenoestrogens, have been associated with increased breast cancer risk, even at low doses.
The two most common xenoestrogens, phthalates and parabens, are used widely in personal care products such as shampoo, deodorant, lotion, nail polish, fragrances and more.
While most toxicology cancer research uses animal models or cancer cell lines,
the new study,
published in Chemosphere, aimed to
understand how reducing real-world exposure to these toxics affects early
markers of breast cancer in people’s bodies.
Breast cancer survivors and researchers partnered to recruit cancer-free women who used personal care products with parabens and phthalates daily. Randomly assigning some women as controls, they collected blood, urine and breast tissue cells from participants at the start and end of a 28-day intervention period, where non-control participants switched to phthalate- and paraben-free products.
They observed significant
reversal of known cancer-associated cell signaling pathways, significant shifts
of known cancer-associated genes to a ‘normal’ profile, and significant
reduction in phthalate and paraben urine levels post-intervention.
URI researchers help R.I. town to chart new directions in public housing
At the request of the housing authority, the research
team of economists, political scientists, and historians spent more than two
years developing a survey to help better understand the needs of
public housing residents, compiling an oral history of public housing in South
Kingstown, and producing a research paper exploring best practices in public
housing across the U.S. and beyond.
The goal of the project was to provide practical,
evidence-based guidance for the housing authority as it begins the process of
rethinking its approach to public housing.
Controversial Education Bills Spark Heated Debate in Rhode Island
By Steve Ahlquist, Uprise RI![]() |
| patimes.org |