PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

Study of 1.2+M births in Sydney, Australia reveals associations between excess heat exposure and preterm births

20 Year study of 1.2 M births shows strong association between risk of pre-term birth and exposure to extreme hot temperatures

Study of 1.2+M births in Sydney, Australia reveals associations between excess heat exposure and preterm births
2024-02-26
(Press-News.org) In the face of increasing temperatures globally, a new Monash-led study of 1.2 million births in Sydney over two decades has shown a strong association between the risk of pre-term birth and exposure to extreme hot temperatures in the third trimester of pregnancy. The data suggested that this association with extreme temperature might be reduced by the level of greenery in a pregnant person’s residential surrounds.

The findings suggest health services should consider preparing for an increase in preterm births as our climate warms.

The study, published in JAMA Pediatrics, looked at the relationship between preterm birth, exposure to high temperatures as well as the mitigating factor of exposure to trees and overall greenness.

For the purposes of the study, excess heat was defined as trimester temperatures higher than the 95th percentile of trimester distributions over the 20-year period.

The study, led by A/Prof Shanshan (Shandy) Li from the Monash School of Public Health and Preventive Medicine, looked at 1.2 million births - including 63,144 preterm births - occurring in Sydney, between 2000 and 2020, using the New South Wales Midwives Data Collection.

The research team cross-referenced this data with historical temperature data, as well as tree cover and overall greenness levels derived from satellite images.

The research concluded that exposure to both daytime and night-time extreme heat in the third trimester was strongly associated with increased preterm birth risks, unlike the same exposure in either the first or second trimesters. This association existed for all levels of area-level greenness, although the strength of the association was slightly diminished for women living in areas with more trees and other greenery, raising the intriguing possibility that greenness might ameliorate some of the excess risk from extreme heat exposure in the third trimester that deserves further study.

First author A/Prof Li is an expert in environmental impacts on children’s health. She says, “The presence of greenery, especially trees, has the potential to mitigate heat levels and lower the risks of preterm birth associated with heat. Greenery also has positive physical and mental health impacts beyond just pregnancy and birth outcomes. We should be integrating heat mitigation strategies such as increasing green spaces into urban planning, to improve public health.”

According to Professor Yuming Guo, senior author on the study, and also from Monash University, there has been increasing but still limited epidemiological evidence linking prenatal environmental temperatures with birth outcomes. “Emerging evidence suggests that night-time air temperature, particularly extreme night-time heat, significantly impacts health, including sleep and rest. Sleep quality and duration affects various aspects of health, and disturbances in these factors may have consequences for pregnancy outcomes,” he said.

“High night-time temperatures can disrupt circadian rhythms and potentially influence blood pressure, which may be an issue for pregnant individuals. Given the projected increase in extreme temperatures as our planet warms, understanding its impacts on birth outcomes and developing strategies to mitigate the risks becomes crucial.”

 

 

END

[Attachments] See images for this press release:
Study of 1.2+M births in Sydney, Australia reveals associations between excess heat exposure and preterm births Study of 1.2+M births in Sydney, Australia reveals associations between excess heat exposure and preterm births 2

ELSE PRESS RELEASES FROM THIS DATE:

Blindness from some inherited eye diseases may be caused by gut bacteria

2024-02-26
Sight loss in certain inherited eye diseases may be caused by gut bacteria, and is potentially treatable by antimicrobials, finds a new study in mice co-led by a UCL and Moorfields researcher. The international study observed that in eyes with sight loss caused by a particular genetic mutation, known to cause eye diseases that lead to blindness, gut bacteria were found within the damaged areas of the eye. The authors of the new paper, published in Cell and jointly led by researchers in China, say their findings suggest that the genetic mutation may relax the body’s defences, thus allowing harmful bacteria to reach the eye and cause blindness. The gut contains trillions ...

Journal of Pharmaceutical Analysis articles provide novel insights into previously unknown disease mechanisms

Journal of Pharmaceutical Analysis articles provide novel insights into previously unknown disease mechanisms
2024-02-26
DCM is the leading cause of heart failure in patients with chronic diabetes. However, the underlying mechanisms of DCM are poorly understood, and treatment options are limited. Another mystery is the regulation of cytochrome P450 enzymes (CYPs) in the central nervous system. Moreover, the link between the gut microbiome, microbiota-derived metabolites, and the progression of AD remains unknown. In the December issue of JPA, three articles provide insights into the pathologies of DCM, hippocampal neurotoxicity, and AD, providing a comprehensive ...

Enhancing electrogenerated chemiluminescence of an iridium complex

Enhancing electrogenerated chemiluminescence of an iridium complex
2024-02-26
Electrogenerated chemiluminescence (ECL) cells, characterized by their self-emissive nature, have gathered significant interest for prospective display applications due to their uncomplicated structure and straightforward fabrication process. These cells are created by sandwiching a solution-based emitting layer between two transparent electrodes. Nevertheless, when compared to other self-emissive devices like light-emitting diodes (LED) and organic LEDs, the luminescent performance of ECL cells ...

The structure of HSV-1 gB bound to a potent neutralizing antibody reveals a conservative antigenic domain across herpesviruses

The structure of HSV-1 gB bound to a potent neutralizing antibody reveals a conservative antigenic domain across herpesviruses
2024-02-26
Human herpesviruses comprise the alpha, beta, and gamma subfamilies and are a widely prevalent group of DNA-enveloped viruses, capable of establishing lifelong latent infections in humans and causing various diseases. Among them, herpes simplex virus (HSV) belongs to the alpha herpesvirus group and infects a wide population, causing symptoms like oral or genital herpes. As an enveloped virus, HSV possesses a series of glycoproteins involved in virus recognition, adhesion, and infection processes. Among these, gB serves as the viral fusion protein, mediating the fusion between the virus and host cell membranes, and ...

Fighting the flu: The surprising power of a century-old vaccine for tuberculosis

2024-02-26
As Canada’s flu season collides with record strep A cases and ongoing COVID-19 concerns, a new study is shedding light on our understanding of respiratory immune responses. Scholars from the Research Institute of the McGill University Health Centre (RI-MUHC) have discovered a surprising facet about a century-old vaccine for tuberculosis, Bacillus Calmette Guérin (BCG). The study, published in the journal Nature Immunology, uncovered a previously unknown mechanism that extends the vaccine’s shield to combat influenza A virus—the most prevalent flu strain. “The immune interactions ...

The effects of primer pairs, PCR conditions, and peptide nucleic acid clamps on plant root fungal diversity assessment

The effects of primer pairs, PCR conditions, and peptide nucleic acid clamps on plant root fungal diversity assessment
2024-02-26
Fungi are frequently found both around and within plant tissues (especially in roots) and are involved in both plant nutrient acquisition and resistance to pathogens. Thus, characterizing the diversity and composition of plant-associated fungal communities has been a growing interest in recent years.   High-throughput sequencing (HTS), also called metabarcoding, has become a prominent tool to assess complex microbial communities from environmental samples. However, HTS applied to plant-associated ...

Can hunger be eradicated by 2030?

2024-02-26
World hunger is growing at an alarming rate, with prolonged conflicts, climate change, and COVID-19 exacerbating the problem. In 2022, the World Food Programme helped a record 158 million people. On this trajectory, the United Nations’ goal to eradicate hunger by 2030 appears increasingly unattainable. New research at McGill University shines the spotlight on a significant piece of the puzzle: international food assistance. With no global treaty in place, food aid is guided by a patchwork of international agreements and institutions. Using the concept of a “regime ...

A novel method for easy and quick fabrication of biomimetic robots with life-like movement

A novel method for easy and quick fabrication of biomimetic robots with life-like movement
2024-02-26
Ultraviolet-laser processing is a promising technique for developing intricate microstructures, enabling complex alignment of muscle cells, required for building life-like biohybrid actuators, as shown by Tokyo Tech researchers. Compared to traditional complex methods, this innovative technique enables easy and quick fabrication of microstructures with intricate patterns for achieving different muscle cell arrangements, paving the way for biohybrid actuators capable of complex, flexible movements. Biomimetic robots, which mimic the movements and biological functions of living organisms, are a fascinating area of research that ...

Austria isolates and genotypes Leptospira bacteria for the first time

Austria isolates and genotypes Leptospira bacteria for the first time
2024-02-26
[Vienna, Feb 26 2024] — Leptospirosis is a globally distributed infectious disease that affects both animals and humans. While the infection is endemic in tropical regions, its incidence seems to increase in temperate regions. The serological diagnostic test used in routine to detect antibodies against the bacteria responsible for the disease performs better when local variants are used. In Austria, however, no locally circulating strain has been available to date. A new study, published in the latest issue of Scientific Reports, has now been able to close this research gap.  "In our study, ...

Major new funding supports early career investigators working on cures for pancreatic cancer

2024-02-26
Bethesda, MD (Feb. 26, 2024) — The AGA Research Foundation has announced a $1.4 million endowment grant from The Bern Schwartz Family Foundation. The AGA Institute will provide matching support, resulting in a $2.8 million endowment dedicated to advancing basic research in pancreatic cancer, the third leading cause of cancer deaths in the U.S.   The endowment will fund a second AGA-Bern Schwartz Family Fund Research Scholar Award in Pancreatic Cancer. The first award, created in 2013, will also continue. Both awards provide selected early career-investigators with $100,000 per year for three years ...

LAST 30 PRESS RELEASES:

Preschool education: A key to supporting allophone children

CNIC scientists discover a key mechanism in fat cells that protects the body against energetic excess

Chemical replacement of TNT explosive more harmful to plants, study shows

Scientists reveal possible role of iron sulfides in creating life in terrestrial hot springs

Hormone therapy affects the metabolic health of transgender individuals

Survey of 12 European countries reveals the best and worst for smoke-free homes

First new treatment for asthma attacks in 50 years

Certain HRT tablets linked to increased heart disease and blood clot risk

Talking therapy and rehabilitation probably improve long covid symptoms, but effects modest

Ban medical research with links to the fossil fuel industry, say experts

Different menopausal hormone treatments pose different risks

Novel CAR T cell therapy obe-cel demonstrates high response rates in adult patients with advanced B-cell ALL

Clinical trial at Emory University reveals twice-yearly injection to be 96% effective in HIV prevention

Discovering the traits of extinct birds

Are health care disparities tied to worse outcomes for kids with MS?

For those with CTE, family history of mental illness tied to aggression in middle age

The sound of traffic increases stress and anxiety

Global food yields have grown steadily during last six decades

Children who grow up with pets or on farms may develop allergies at lower rates because their gut microbiome develops with more anaerobic commensals, per fecal analysis in small cohort study

North American Early Paleoindians almost 13,000 years ago used the bones of canids, felids, and hares to create needles in modern-day Wyoming, potentially to make the tailored fur garments which enabl

Higher levels of democracy and lower levels of corruption are associated with more doctors, independent of healthcare spending, per cross-sectional study of 134 countries

In major materials breakthrough, UVA team solves a nearly 200-year-old challenge in polymers

Wyoming research shows early North Americans made needles from fur-bearers

Preclinical tests show mRNA-based treatments effective for blinding condition

Velcro DNA helps build nanorobotic Meccano

Oceans emit sulfur and cool the climate more than previously thought

Nanorobot hand made of DNA grabs viruses for diagnostics and blocks cell entry

Rare, mysterious brain malformations in children linked to protein misfolding, study finds

Newly designed nanomaterial shows promise as antimicrobial agent

Scientists glue two proteins together, driving cancer cells to self-destruct

[Press-News.org] Study of 1.2+M births in Sydney, Australia reveals associations between excess heat exposure and preterm births
20 Year study of 1.2 M births shows strong association between risk of pre-term birth and exposure to extreme hot temperatures