Sunday, October 22, 2023

Polyamory Is On The Rise And Society Should Be More Accommodating, Research Argues

A book argues that more needs to be done to support consensual non-monogamous relationships.



DR. RUSSELL MOUL



Polyamory has been on the rise for some time, despite the social and political stigmas surrounding it, but research suggests that such romantic relationships can offer emotional and physical benefits to all involved.

Consensual polyamory – having more than one sexual or emotional relationship at once – has become increasingly common in many countries in recent years. According to statistics published in 2021, 4 to 5 percent of the American population practices polyamory, while a 2019 YouGov survey found that 7 percent of UK adults had been in a consensual non-monogamous relationship at some point in their lives. This latter statistic represents a marked increase from a similar survey conducted in 2015, which showed that only 2 percent of UK adults had been in such relationships.

This increase in practice has also been accompanied by a rise in positive representations of polyamorous relationships in popular culture. Today, there are a number of television shows and video games that have included the lifestyle in their plots, while mainstream dating sites and apps, including OkCupid, Tinder, and Hinge, now allow users to specify this type of relationship in their profiles. Yet despite the increase in the number of people identifying as polyamorous, there remains significant stigma surrounding it, along with social and political pressure that favors monogamy.

Monogamy is often portrayed as the ideal romantic situation and its values are reinforced in the stories we read as children and the films and stories we encounter as adults. According to this idea, happiness is contingent on us finding our one true soulmate who will stay with us throughout our lives. Accompanying this cultural expectation is a range of state and government incentives – financial, social, and legal – that favor married couples. Any deviance from the monogamous norm, or mononormativity, is viewed with suspicion or outright hostility.  


However, a new book by Justin Clardy, Professor of Philosophy at Santa Clara University, seeks to challenge this view. According to Clardy, an increasingly large number of legal and political scholars are proposing reforms to existing family laws to recognize the variety of relationship types humans can have.

“Polyamorists face the risk of being fired, denied housing or citizenship, or having their children taken away from them because of their polyamorous identities and lifestyles,” Clardy said in a statement.

“However, in many cases poly relationships are more durable than monogamous ones, because their flexibility allows them to meet shifting needs over time in a way that monogamous relationships don’t.”

Debunking common assumptions

Clardy’s work presents and then challenges the main arguments commonly mustered to support monogamy. In particular, he addresses the “moral debate” that supposes that humans evolved to be monogamous as babies require greater care than other young animals, due to their younger gestational age.

“Monogamy is therefore seen as the ‘natural’ order of things,” Professor Clardy explained. “However, many homosexual and heterosexual monogamous couples either do not want, or cannot have children, yet this doesn’t exclude them from being able to marry, and enjoy the rights and privileges that come with marriage.”

“Others may see monogamy as a moral command given by God, however, does this mean that atheists and agnostics are disqualified from romantic love, even if they find themselves in happy, healthy, and satisfying monogamous romantic relationships?”

Then there is the persistent idea that polyamory generates painful feelings of jealousy, but Clardy argues that this is not unique to non-monogamous relationships. In many instances vulnerability, possessiveness, and the feeling of entitlement towards another person’s affection are more inherent in jealousy than we are comfortable to admit. Polyamory, in contrast, can give individuals the chance to see how a partner behaves in other relationships.

“When governed by mutual consent and understanding, polyamorous relationships can allow people to share more fully in the happiness of others,” said Clardy.

Equally, opponents of polyamory argue that these relationships harm children and the family unit more generally, claiming they inevitably result in divorce and the breakdown of families. And yet polyamorous families not only exist, Clardy said, but also thrive in ways that benefit children. 

“It may not take an entire village to raise a child, but it stands to reason that all things being equal, having more than one ‘father’ or ‘mother’ as a caregiver may be even more conducive to meeting children’s needs, as children may be loved and nurtured in unconventional families,” said Clardy.

“Indeed, it may turn out that on average, the existence of more than two caregivers is the superior parenting arrangement.”

Ultimately, the book argues, it is morally indefensible for monogamy to be necessarily imposed on society. Clardy pushes for more states to support diverse forms of relationships as well as monogamous ones. 

“Polyamorous relationships need support and protection that the state is uniquely able to provide and is best placed to carry out,” argued Clardy. 

“Just because a way of relating might deviate from well-established social norms like monogamy, this does not mean that they don’t have considerable value— morally, socially, or politically.”

An earlier version of this article was published in April 2023. 



Are 'Starquakes' Causing These Mysterious High-Energy Radio Bursts From Space?

BY DAVID ROSSIAKY

OCT. 22, 2023 

Experts believe that eyes have evolved independently as many as 40 different times during the course of life here on Earth. It would be reasonable, then, to conclude that vision is beneficial to living beings. Seeing is believing, after all. But — bad news — you ain't seen nothin' yet. Truly.

Light is a wave (kind of, just go with it), and it can have a variety of wavelengths and frequencies, which are all mapped out on a big linear chart called the electromagnetic spectrum. And how much of that spectrum do you suppose humans can see? Certainly not all of it. Perhaps half? A quarter? Okay, maybe 10%, but surely not less than that. In truth, 99.9965% of the electromagnetic spectrum is completely invisible to humans. It really makes your 8K TV feel a tad less impressive.

One of the many incredible light shows we're unable to experience directly is known as a fast radio burst, or FRB. But even if you could see them, you'd miss them if you blinked: they only last between a few microseconds to a few milliseconds. So why are scientists interested in these invisible, superfast flashes?

Well, they're intense enough to be observed from 3 billion lightyears away, and they're hitting the Earth more than 10,000 times per day. Since the discovery of FRBs in 2007, their origin has been a mystery. But now scientists have new evidence that could explain where FRBs come from, and it would be putting it too lightly to call the theory earthshaking.

What are starquakes?

When an extremely massive star dies, it collapses in on itself until it creates an infinitely dense point called a singularity. The gravitational well around such an object is so powerful that not even light can escape, so we gave these terrifying spaceborne gravity monsters the cutesy name "black holes." These stellar corpses essentially rip a chasm right through the fabric of spacetime, so to call them the densest objects in space isn't quite fair — they're disqualified. If you're looking for the densest objects not shrouded in an acausal shell of darkness, you'll have to settle for the humble neutron star.

To make a neutron star, you need to take the mass of the Earth and crush it all into a sphere about 12 miles in diameter — and then inside that same sphere, find room to jam in another 499,999 Earths on top of the first one. It gets to be pretty tight quarters in there. As you might imagine, a neutron star is a very different type of celestial object than a more typical star like our own Sun. One such difference? A neutron star has a solid surface called a crust.

In that way, a neutron star has something in common with our humble planet. And while the mechanisms are different, the crust of a neutron star can be subject to sudden and violent shifting, not entirely unlike an earthquake. A starquake. Could they somehow be the source of FRBs?

Extragalactic aftershocks

Starquakes are thought to be one method neutron stars use to release energy. How much energy? One starquake observed in 2004 released more energy in a tenth of a second than our own Sun did during the entire time since Neanderthals went extinct by a factor of two-and-a-half. Energy bursts of this magnitude make a good suspect when trying to figure out who's been flinging FRBs across intergalactic distances.

Researchers from Japan recently published their research into the origins of FRBs. They wanted to examine two potential theories about the sources of these energetic bursts: solar flares and starquakes. Data was collected from three FRB sources and compared to data from both earthquakes and solar flares. Statistical analysis suggested that solar flares didn't fit the pattern of FRBs, but starquakes did.

In particular, the FRB data was consistent with the known parameters for aftershocks, including the number of aftershocks after an initial event and their duration. The researchers admit that more research is needed before FRBs can definitively be said to originate from starquakes, but it's compelling evidence and an important avenue of research. If only FRBs were the lone space energy mystery left to solve.

Research finds 1 out of 4 youth screen positive for suicide risk in an emergency department; majority of those who identify as transgender, gender diverse, screen positive


Universal screening for suicide risk revealed a high proportion of youth in need of mental health services at one hospital


Reports and Proceedings

AMERICAN ACADEMY OF PEDIATRICS




For release: 12:01 a.m. ET Friday, Oct. 20, 2023 

Washington, D.C.— Nearly 80% of emergency department encounters involving transgender or gender diverse youth ages 10 and older screened positive for suicide risk while seeking treatment at a Chicago emergency department over a 3.5-year period, according to research presented during the 2023 AAP National Conference & Exhibition at the Walter E. Washington Convention Center.  

The abstract, “Suicidal Ideation in Transgender and Gender Diverse Youth in the Emergency Department,” examines data provided after universal suicide screening was implemented in the Emergency Department for all youth 10 and older who presented at Ann and Robert H. Lurie Children’s Hospital of Chicago between September 2019-August 2022. Researchers found that in 24% of 12,112 ED encounters, patients screened positive for suicide risk. Using the electronic medical record, the author identified that of 565 encounters by transgender and gender diverse youth, positive suicide risk was identified in 78% of encounters, with 10% of encounters by transgender and gender diverse youth endorsing active suicidal ideation at the time of ED presentation.   

“Unfortunately, these findings did not surprise me as I routinely see transgender and gender diverse youth struggling with their mental health in my practice as a clinical psychologist,” said abstract author Amanda Burnside, PhD Attending Pediatric Psychologist at Ann & Robert H. Lurie Children’s Hospital of Chicago and Assistant Professor of Psychiatry and Behavioral Sciences at Northwestern University Feinberg School of Medicine.  “Common contributing factors include bullying and discrimination, and it is imperative that we continue to support these youth.” 

 Compared to cisgender youth, transgender and gender diverse youth were 5.35 times more likely to screen positive for suicide risk.  

"We should work to ensure that all youth are routinely screened for suicide risk across every health care setting,” Dr. Burnside said. “We need to develop robust systems to connect youth who screen positive with mental health services." 

More than 77% of emergency department encounters by transgender and gender diverse youth were for a chief complaint centered on mental health, according to the research. 

“Caregivers and other supportive adults should routinely check in with transgender and gender diverse youth about their mental health.  Any concerns can be brought to the attention of the youth's pediatrician. The National Suicide and Crisis Line is also available as a resource 24/7 by calling 988.” 

This work was supported by Stanley Manne Children’s Research Institute at Ann and Robert H. Lurie Children’s Hospital of Chicago through the Mental Health Springboard Award (2022). 

Dr. Burnside is scheduled to present her research, which is below, from 4:45 p.m.- 4:55 p.m. ET Monday, Oct. 23. To request an interview, contact Julianne Bardele at JBardele@luriechildrens.org.  

 In addition, Dr. Burnside will be among highlighted abstract authors who will give a brief presentations and be available for interviews during a press conference from 8 -9 a.m. ET Sunday, Oct. 22 in the National Conference Press Room 102 AB. During the meeting, you may reach AAP media relations staff in the press room.  

Please note: only the abstract is being presented at the meeting. In some cases, the researcher may have more data available to share with media, or may be preparing a longer article for submission to a journal.   

 

# # #  

 

The American Academy of Pediatrics is an organization of 67,000 primary care pediatricians, pediatric medical subspecialists and pediatric surgical specialists dedicated to the health, safety and well-being of infants, children, adolescents and young adults. For more information, visit www.aap.org. Reporters can access the meeting program and other relevant meeting information through the AAP meeting website at http://www.aapexperience.org/ 

 

ABSTRACT 

Program Name: AAP National Conference & Exhibition  

Submission Type: Section on LGBT Health and Wellness  

Abstract Title: Suicidal Ideation in Transgender and Gender Diverse Youth in the Emergency Department  

Amanda Burnside  

Chicago, IL, United States  

 

Background: Suicide among transgender and gender diverse (TGD) youth represents a national crisis. One in four high school youth who identify as a sexual or gender minority attempts suicide during a 6-month period, and nearly half of these youth seriously consider attempting suicide. In healthcare settings, research involving TGD individuals has historically been limited to specialized clinic populations or youth with gender-specific diagnostic codes documented in the electronic medical record (EMR). However, this approach likely significantly underestimates the prevalence of TGD youth in healthcare settings. To bridge this gap, one study utilized an EMR keyword search strategy to identify transgender youth, but this study did not identify other youth on the gender diversity spectrum. Our objective was to develop a novel keyword-based method for identifying TGD youth in the EMR and to employ this method to identify rates of suicidal ideation among TGD youth in the emergency department (ED).  

Methods: We conducted a retrospective cross-sectional study of ED encounters by youth who received suicide screening at an urban tertiary children’s hospital from September 2019-August 2022. Suicide screening was conducted using Ask Suicide-Screening Questions (ASQ). TGD youth were identified using keyword searching. If any of 9 keywords (they/them, preferred name, pronouns, male-to-female, female-to-male, nonbinary, agender, transgender, gender dysphoria) were present in the ED note, the surrounding text was extracted and manually reviewed to determine whether the text conveyed TGD status.  

Results: The ASQ was administered in 12,112 ED encounters, and 1 in 4 (24%) encounters had a positive screen. We identified 565 ED encounters by 399 unique TGD youth. Thirty-one percent of ED encounters by TGD youth contained just one keyword. TGD youth ranged from 8 to 23 years old and were 43% White, 35% Latinx, 10% Black, 4% Asian, and 8% other/two or more races. Of TGD youth, 43% were publicly insured and 52% resided in a neighborhood with a “low” or “very low” Child Opportunity Index category. For TGD youth specifically, most identified ED encounters (77.5%) were for a mental health chief complaint. In 81% of TGD encounters, TGD youth screened positive on the ASQ with 10% endorsing active suicidal ideation at the time of ED presentation.  

Conclusion: Use of a keyword-based method to identify TGD youth in the EMR revealed high rates of suicidal ideation, which may inform suicide prevention efforts. Future analyses will further characterize ED encounters by TGD youth, including characteristics associated with suicidal ideation and trends in rates of suicidal ideation over time. This work was supported by Stanley Manne Children’s Research Institute at Ann and Robert H. Lurie Children’s Hospital of Chicago through the Mental Health Springboard Award (2022).  

# # #  

 

Disclaimer: AAAS

Report finds Canadian youth feel unprepared, scared to have sex


CBC
Sun, October 22, 2023


Young Canadians aren't happy with the quality of sexual education and leave the classroom feeling awkward, unprepared and scared to have sex, a new report from a Toronto-based think tank suggests.

LetsStopAIDS, a youth-driven Canadian charity that raises HIV awareness among young Canadians, released the findings of its second Sex Lives Report this week, based on data collected in May through a survey sampling 1,090 Canadians aged 18 to 24.

Gabrial Brown, a research analyst at LetsStopAIDS, told CBC's Edmonton AM the survey looked to understand young Canadians' relationship with their sexuality, their knowledge of HIV and sexually transmitted infection prevention, and their experiences with sex ed.

"Our findings were loud and clear," Brown said.

"The conventional methods of addressing sexuality are obsolete, more so in today's age that values equality, diversity and respect."


Gabrial Brown, a research analyst at LetsStopAIDS, said the 2023 Sex Lives Report delves into the young Canadians’ relationship with their sexuality, gauge their knowledge of HIV and STI prevention, and understand their experiences with sex ed. (LetsStopAIDS)

The report found sex ed gave students an "abundance" of scientific information but was "severely lacking in practical knowledge or skills," leaving respondents with unanswered questions, Brown said.

LetsStopAIDS's findings suggest young Canadians feel unprepared for sex because their classroom experience was negatively impacted by a stigmatized and "abstinence-focused" class likely stemming from teachers' discomfort around sex.

Young people also felt there were topics teachers didn't cover, notably gender identity and sexual orientation, saying the education they received was "primarily heteronormative."

Finn St Dennis, research and evaluation manager for the Queer and Trans Health Collective in Edmonton, said the report's findings weren't surprising.

Many of the highlighted topics, they said, are present in Edmonton, based on the sex ed "disparity" that the collective hears about from community members, who face similar challenges as their straight and cisgender peers.

"They're also facing additional barriers when you have teachers that aren't teaching about sexual orientation or gender identity, and aren't necessarily comfortable or prepared to have those conversations," they said.


The report by LetsStopAIDS found youth don’t recall learning about HIV-prevention medications like PrEP. (Vanessa Blanch/CBC)

The report also found condom use is down, fewer young people are being tested for STIs despite a rise in infections, and that they don't recall learning about medications like PrEP — a daily pill taken to prevent the transmission of HIV.

'That really speaks to the need to talk about testing in tech said the benefits of testing and destigmatizing testing," St Dennis said.

In the survey, respondents said education about diverse sexual orientations, gender identities and the challenges faced by the LGBTQ community would "foster greater inclusivity, understanding and acceptance."

Said one respondent: "It is so important that kids understand people aren't just cisgender and straight, and those who aren't are not freaks."

With the lack of satisfaction from classes, young Canadians were forced to find answers elsewhere, with six in 10 citing the internet as their primary source of sexual information, followed by friends and family doctors.

St Dennis said LGBTQ young people are often not able to trust a family physician.

"I remember hearing a story from a community member who asked for STI testing and her doctor told her that lesbians don't get STIs, so she didn't need any testing," St Dennis said.

They said research by the collective even suggests some Alberta doctors aren't specialized in new advances in preventing HIV and other STIs.

Over the summer, Canada has seen a national debate over gender identity and sexual orientation, with New Brunswick and Saskatchewan bringing in policies about LGBTQ students that advocates have deemed controversial.

St Dennis believes the debate and resulting stigma play huge roles in the disparity seen in sex education.

"School is a space that's supposed to be safe for kids to figure out who they are," they said.

"We're removing a space that youth can do that if we're preventing conversations around gender identity and sexual orientation."

St Dennis said governments should implement continuing education for teachers around STI prevention as well as space for furthering the conversation around gender and sexual identity.

Brown said LetsStopAIDS is advocating for a comprehensive and positive approach to sexual education. The report, he said, is a starting point for engaging with governments to improve the sex ed curriculum.

Without it, he said Canadian young people will continue to face rising STI rates and knowledge gaps about sex.

"It's such a crucial and dire situation," said Brown.

"This is a real problem we need to address in Canada."
As drought dries up B.C. rivers, conservationists turn to beavers for help


CBC
Sun, October 22, 2023 


The ongoing drought in many parts of B.C. is causing some rivers in the province's northern Interior to reach their driest mid-October levels in years.

In Prince George, the unusually low waters have locals worried.

Harriet Schoeter moved to the northern B.C. city 60 years ago, and loves walking the shore where the Fraser and Nechako rivers meet.

This week, the water was so low she could almost walk right across.

"I've never seen it this low," she said. "It was low before, but not like this."

Wayne Salewski, with the Nechako Environment and Water Stewardship Society, said the river is indeed at its driest for this time of year in decades.

"It's horridly low — unbelievably low," Salewski said, standing on the dry river bottom at the confluence of the two Prince George rivers. "Everything is going to pay the price for that.

"Our streams are dry right now … We need to hold water in place."

A family walks on the riverbed where water normally flows at the confluence of the Nechako and Fraser rivers near Prince George, B.C., on Wednesday. (Jason Peters/CBC)

The shallower and warmer waters will harm salmon, sturgeon, and people whose livelihoods depend on healthy rivers, he said.

Now, Salewski's non-profit is looking for help to slow water loss in tributaries, from Canada's best-known builders: beavers.

'Nature's engineers'

According to data from Environment and Climate Change Canada, the Fraser River near Prince George is at its lowest for this week in 17 years, and nearly a third below the historical average for October.

The Nechako River, which flows into the Fraser from a reservoir to the city's west, is at its lowest for this time of year since records were kept.


A Prince George, B.C., railway bridge at the confluence of the Nechako and Fraser rivers is seen in an October 2021 photograph. This October’s river levels are far below average for this time of year. (Submitted by Chuck Chin)


Salewski asked engineers at the University of Northern B.C. to help plan beaver dam analogues (BDAs), a promising fix that's common in Washington, Idaho and other U.S. states.

Sometimes also known as artificial logjams, the idea is to simulate the flat-tailed rodents' wood-and-mud dams to retain tributaries' moisture in small pools.

"Beavers are nature's engineers," said Mauricio Dziedzic, chair of UNBC engineering. "They tend to build dams that hold for quite a while."

He is helping Salewski's society with the technical aspects of beaver-style building. Thanks to their sharp teeth, he said, beavers cut wood to start a new dam, criss-crossing branches in a stream, adding mud, and then packing it tight with their flat tails.

Beavers use their sharp teeth to cut wood to build dams — criss-crossing branches in a stream, adding mud, and then packing it tight with their flat tails. (David P. Lewis/Shutterstock)

"They use their tails to tap it and and make it almost impervious," he said.

"A man-made structure made to look and function similarly — by keeping that water behind the dam — you recharge the groundwater [and] make the soil moisture increase."

'A more resilient kind of a waterway'

B.C. already has several such pilot projects. The B.C. Wildlife Federation (BCWF) and Nicola Valley Institute of Technology researchers installed nearly a dozen BDAs on a stream near Merritt, B.C., earlier this year.

The federation plans to build at least 100 more across the province's Interior and North, including in Nechako tributaries.

By driving vertical wood poles into the stream bed, and weaving them with debris such as logs, evergreen boughs and mud, their hope is beavers will take over their maintenance.


A beaver dam analogue is set up in Howard Creek, a tributary of the Nicola River, where 10 of the artificial logjams have been built as a pilot project that could soon expand across B.C.
(Submitted by B.C. Wildlife Federation)

"It is basically a starter kit for a beaver," explained Neil Fletcher, BCTF's conservation stewardship director. "Can we encourage beavers to come back onto the land base and help hold that water?

"Beaver dam analogues can be part of post-fire recovery, as well as to respond to drought and climate change."

Last April, the Habitat Conservation Trust Foundation offered the BCWF $100,000 to try out the woven wood dams across B.C.



A map of B.C. shows the seven-day average streamflow on waterways across the province according to the River Forecast Centre on Friday. The darker-red dots represent the most drought-affected rivers, and paler dots represent the least drought-affected, compared to their usual water flow. (B.C. River Forecast Centre/National Geographic maps)

Fletcher said a key area for study is how BDAs impact fish. But he said U.S. evidence suggests salmon can often migrate past beaver dams, or take advantage of their pools.

Salewski said the artificial beaver dams' low costs have big appeal — especially if beavers themselves can take over their maintenance.

"Fundamentally, a beaver dam analogue is building the landscape for beavers to move in in 10 to 15 years," he told CBC News.

"This idea … is actually trying to work toward wetland corridors, to create this new mosaic and build a more resilient kind of a waterway here."

Uppsala Health Summit 2023 - Chemical Pollution and One Health


Meeting Announcement

UPPSALA UNIVERSITY




Environmental pollutants are responsible for at least 9 million deaths worldwide each year and contribute to significant chronic health issues in humans and animals while also causing serious environmental disruptions. The Uppsala Health Summit 24-25 October brings together international experts from various sectors to discuss solutions that can prevent future emissions and expedite efforts at the global and national policy levels.

One hundred and fifty international experts have been invited to Uppsala Castle in Sweden in October to shed light on and discuss the role of environmental toxins in the so-called triple crisis the world is facing due to rapid climate change, loss of biodiversity, and the impact of chemicals. Nine thematic workshops are planned during the summit's two days, covering topics such as expediting and streamlining chemical testing processes, monitoring methods for chemical exposure, and risk assessment of contaminants in water, animal feed, and food. One workshop addresses the risks of plastic recycling, while another focuses on the connection between chemical pollutants and the prevalence of metabolic diseases such as diabetes and obesity.

The hope is that the meeting will provide concrete improvement proposals and recommendations for ongoing policy processes within the EU and the UN. Special attention is given to the global plastic agreement currently under negotiation and the international scientific policy panel for chemical and waste management currently in development by the United Nations Environment Programme (UNEP).

"It is remarkable that the issue of chemicals, with its far-reaching and severe consequences for all life on Earth, has been so low on the political agendas of countries for such a long time. This is partly due to the complexity of the issues, which force us to make difficult choices about lifestyle and consumption, but also because powerful industrial interests want to maintain chemicals with clearly demonstrated negative effects. With this meeting, we hope to gather recommendations that can foster a greater understanding among decision-makers about how urgent this issue is," says Joëlle Rüegg, Professor of Environmental Toxicology at Uppsala University and Program Committee Chair for the Uppsala Health Summit 2023.

Speakers in the plenary sessions (which will also be live-streamed) include Baskut Tuncak, a Professor from the University of Massachusetts Lowell, USA, and former UN Special Rapporteur on Human Rights and Toxics, Dr. Leo Trasande, Professor and Director of the Department of Pediatrics and Environmental Medicine at New York University School of Medicine (NYU), Dr. Sharon McGuinness, Executive Director of the European Chemicals Agency (ECHA), and Dr. Sinaia Netanyahu, Program Manager in the European Regional Office of the World Health Organization (WHO).

A report will be launched during the meeting that provides a comprehensive and up-to-date overview of the current challenges and the necessary changes to reduce the harm caused by chemicals and other environmental toxins.


 

Soil carried on sea freight loaded with dangerous pests and diseases


Peer-Reviewed Publication

PENSOFT PUBLISHERS




Often introduced unintentionally by human activities, invasive alien species can outcompete and overwhelm native flora and fauna, driving species to the brink of extinction and disrupting the balance of ecosystems. Understanding why exactly they establish in new locations and how they got there in the first place is crucial if we are to mitigate their destructive effects. Unfortunately, there isn’t enough research on this, and the answers might not always be straightforward.

A research team from AgResearch and Better Border Biosecurity (B3) investigated the biological risk posed by soil on the external surfaces of sea freight such as shipping containers or used machinery at sea ports in New Zealand. With their work, the researchers hope to facilitate the assessment of relative biosecurity risks between different introduction pathways and contribute to the development of more efficient measures against them.

The team found soil on most types of sea freight, irrespective of origin, with all soil likely to vector microbes, including plant pathogens. The amount of soil recovered from a single sea container was 5.3 kg, while the overall mean weight collected from sea freight was 417g, with most of the soil found on the underside of sea freight.

“While the presence of soil is perhaps not surprising, the presence of live bacteria, fungi, worms, seeds and insects associated with the soil was of greater concern. Various regulated biosecurity organisms were recovered from the samples, including plant-parasitic worms, seeds, insects and spiders that were not recorded as being present in New Zealand,” says Mark McNeill of AgResearch, who led the study.

“Not only does the spread of exotic species through these networks represent significant environmental, economic and social costs to natural and agricultural environments if invasive alien species were to establish, a loss of biodiversity is also an expected consequence of invasive alien species establishment. For islands, the implications can be significant, as they have high levels of endemism and invasive alien species establishment can lead to extinction of species as well as biodiversity declines,” the researchers write in their paper, which was published in the open-access journal NeoBiota.

Compared to a previous study on contaminated footwear carried in luggage by international airline passengers, the number and diversity in soil on sea freight was smaller than soil transported in more protected environments (e.g., footwear in luggage). This showed that biosecurity risk can vary with pathway. However, prioritising one soil pathway over another according to the risks they present, and differentially allocating resources is problematic, because the relative risk is dynamic, dictated by factors such as new pests or diseases entering the respective pathways.

Even so, the researchers suggest that contaminated sea freight is an important introduction pathway for exotic species. The establishment of such species can be prevented by cleaning containers prior to departure, inspection at the border, and further cleaning where required.

 

Original source:

McNeill MR, Phillips CB, Richards NK, Aalders LT, van Koten C, James TK, Young SD, Bell NL, Laugraud A (2023) Defining the biosecurity risk posed by soil found on sea freight. NeoBiota 88: 103-133. https://doi.org/10.3897/neobiota.88.98440

FOREVER CHEMICALS

PFAS remain a concern for hormone health, scientists conclude


Business Announcement

EUROPEAN SOCIETY OF ENDOCRINOLOGY





20 October 2023, Brussels, Belgium – At this critical junction for EU chemicals legislation, the independent scientific voice took centre stage at the 5th Annual Forum on Endocrine Disruptors. Together with an impressive number of concerned stakeholders, they called for the immediate adoption implementation of better EU legislation. While a restriction on per-and polyfluoroalkaline substances (PFAS) is ongoing, it risks being watered down by the massive volume of industry submissions to the public consultation. In addition, the European Commission’s legislative proposal on a revision of the main chemicals legislation REACH is still noticeably absent and is unlikely to still be published during the current term of the European Commission and Parliament.

The Forum brought together policy makers, scientists, industry leaders, and civil society to discuss the most pressing topics in the area of endocrine disruptors, including the most recent scientific developments in the field. The European Society of Endocrinology (ESE) once again took an active part in the Forum organised by the European Commission on October 19-20, 2023, and several of ESE’s affiliated experts were invited to present their research and voice their concerns on behalf of the European endocrine community.

This year’s conference put the adverse health effects of PFAS and the links with endocrine disruption at the heart of the agenda and discussed ongoing national and regional initiatives in Europe aimed at reducing exposure to endocrine disruptors.

Prof. Tina Kold Jensen, CPPEM, Environmental Medicine, University of Southern Denmark, described PFAS’ impact on children’s development by showing data from a child cohort. “The data is clear –PFAS continues to hamper the health of our children including their neurological function, fertility and overall development, stricter EU regulation is needed now to eradicate the presence of PFAS in our environment”, said Prof Jensen.

PFAS differ from other EDCs by their highly persistent and bio-accumulative nature, which leads to contemporary exposures having effects on human and animal health as well as our environment far into the future for generations to come. Extensive peer reviewed literature has described the many adverse health outcomes linked to exposure to PFAS, including altered reproductive function in men and women, abnormalities in reproductive organs, early puberty, immune system disruption, cancers, neuroendocrine tumours, respiratory problems, diabetes, obesity, cardiovascular conditions, altered nervous system development and function, and learning disabilities.

The need for strict regulation on PFAS and other Endocrine Disrupting Chemicals (EDCs) was stressed multiple times in the event by the different participating stakeholders.

I wonder how long it will take for policy makers to catch up with the science and put in place an EU framework that will effectively protect us from PFAS and other EDCs” said Prof. Aleksandra Buha-Djordjevic, Department of Toxicology, University of Belgrade, Faculty of Pharmacy, Serbia.

 

ESE remains ready to share its expertise to further the regulation of harmful substances and looks forward to continuing to work with the European Commission and other stakeholders to address the issue of endocrine disruptors.

**** ENDS ****

 

To find out more please visit www.ese-hormones.org

Follow us on X (formerly Twitter) @ESEndocrinology,

Facebook @EuropeanSocietyofEndocrinology

and LinkedIn: linkedin.com/company/european-society-of-endocrinology.

 

 

 

About the European Society of Endocrinology

The European Society of Endocrinology (ESE) provides a platform to develop and share leading research and best knowledge in endocrine science and medicine. By uniting and representing every part of the endocrine community, we are best placed to improve the lives of patients. Through the 51 National Societies involved with the ESE Council of Affiliated Societies (ECAS) ESE represents a community of over 22,000 European endocrinologists. We inform policy makers on health decisions at the highest level through advocacy efforts across Europe. 

To learn more about the Society, visit our website at Home | ESE (ese-hormones.org). Follow us on X (formally Twitter) at @ESEndocrinology.

Organophosphorus flame retardants induce malformations in avian embryos


Evaluation of developmental toxicity in early chicken embryos exposed to tris(2-chloroisopropyl) phosphate

Peer-Reviewed Publication

EHIME UNIVERSITY

Chigusa et al Graphic Abstract 

IMAGE: 

SUMMARY OF DEVELOPMENTAL TOXICITY OF EARLY CHICKEN EMBRYOS EXPOSED TO TRIS(2-CHLOROISOPROPYL) PHOSPHATE USING A SHELL-LESS EMBRYO INCUBATION SYSTEM

view more 

CREDIT: CENTER FOR MARINE ENVIRONMENTAL STUDIES (CMES), EHIME UNIVERSITY




Tris(2-chloroisopropyl) phosphate (TCIPP) is one of the organophosphorus flame retardants that has been detected in the environment, and in the eggs, feathers, and liver of birds. Early developmental avian embryos are known to be sensitive to chemical exposure, but  knowledge regarding the effects of TCIPP on avian embryonic development is limited. In this study, a shell-less embryo incubation system was used to investigate the toxicity of TCIPP in early chicken (Gallus gallus domesticus) embryos.

Fertilized chick embryos were exposed to 50 nmol TCIPP/g, 500 nmol TCIPP/g, or vehicle control, dimethyl sulfoxide (DMSO) on day 0 of incubation. Embryos were observed on days 3-9 of incubation, and expression levels of several genes were measured in embryos on day 4.

Survival was significantly reduced in both groups exposed to TCIPP. Imaging analysis showed that body length, head and bill length, eye diameter, and forelimb and hindlimb length were significantly reduced in both groups exposed to TCIPP. In addition, TCIPP exposure significantly inhibited extraembryonic vascular length and red blood cell production. The heart rate decreased in a dose-dependent manner, particularly on days 4-7, and the somitic angle was significantly increased on days 4-6 in the TCIPP-exposed group, inducing asymmetrical somite formation. The significant correlation between somitic angle and FGF8 expression suggested that TCIPP exposure affects somite formation through an altered FGF signaling pathway.

These results indicate that TCIPP exposure exerts toxic effects on development, including vascularization, cardiac function, and somite formation in avian embryos.