In a nested case-control study of 327 non-smoking FDNY 9/11 rescue workers, metabolic syndrome biomarkers measured within six months of exposure to WTC dust predicted decline of forced expiratory volume in one second (FEV1) over the next six years.
"Study participants with dyslipidemia, elevated heart rate or elevated leptin levels had a significantly increased risk of developing abnormal lung function during follow-up," said Anna Nolan, MD, MS, assistant professor of Medicine and Environmental Medicine at NYU Langone Medical Center. "In contrast, elevated amylin levels reduced the risk of developing abnormal FEV1 levels."
The findings were published online ahead of print publication in the American Thoracic Society's American Journal of Respiratory and Critical Care Medicine.
This case-control study was nested within a larger longitudinally followed cohort. All subjects had normal lung function prior to 9/11. Cases (n = 109) were defined as having FEV1 values below the lower limit of normal at follow-up, while controls (n = 218) were defined as having FEV1 at or above the lower limit of normal. Biomarkers were available for 71 cases and 166 controls. Lung function in cases continually declined in the median 28 months between baseline and follow-up examinations, while lung function improved in controls.In a model adjusting for age, race, body mass index and WTC arrival time, dyslipidemia (triglycerides¡Ý150mg/dL and HDL
"These findings suggest that systemic inflammation, a hallmark of the metabolic syndrome, may play a role in promoting lung function impairment in patients with particulate exposure," Dr. Nolan said. "Given the high prevalence of the metabolic syndrome in industrialized nations and the rising incidence in developing nations with high ambient particulate levels, the relationship between these disorders is of considerable importance."
The study had a few limitations. Use of a single cohort of rescue workers limits extrapolation of these results to other cohorts. There was no unexposed control group in this study, so replication of these findings in populations with and without exposure to particulate matter is needed. Finally, other possible causes of lung dysfunction were not explored.
"Our findings in WTC rescue workers highlight the importance of conducting rapid medical monitoring and sample banking following a disaster," said Dr. Nolan. "If we can identify individuals at greater risk of developing lung function impairment, we can initiate appropriate interventions earlier."
Nathaniel Dunford | EurekAlert!
Age research: A low level of the stress hormone cortisol contributes to the ageing process
01.07.2020 | Universität des Saarlandes
Researchers are watching the brain memorizing rooms
26.06.2020 | Max-Planck-Institut für Kognitions- und Neurowissenschaften
Solar cells based on perovskite compounds could soon make electricity generation from sunlight even more efficient and cheaper. The laboratory efficiency of these perovskite solar cells already exceeds that of the well-known silicon solar cells. An international team led by Stefan Weber from the Max Planck Institute for Polymer Research (MPI-P) in Mainz has found microscopic structures in perovskite crystals that can guide the charge transport in the solar cell. Clever alignment of these "electron highways" could make perovskite solar cells even more powerful.
Solar cells convert sunlight into electricity. During this process, the electrons of the material inside the cell absorb the energy of the light....
Empa researchers have succeeded in applying aerogels to microelectronics: Aerogels based on cellulose nanofibers can effectively shield electromagnetic radiation over a wide frequency range – and they are unrivalled in terms of weight.
Electric motors and electronic devices generate electromagnetic fields that sometimes have to be shielded in order not to affect neighboring electronic...
A promising operating mode for the plasma of a future power plant has been developed at the ASDEX Upgrade fusion device at Max Planck Institute for Plasma...
Live event – July 1, 2020 - 11:00 to 11:45 (CET)
"Automation in Aerospace Industry @ Fraunhofer IFAM"
The Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM l Stade is presenting its forward-looking R&D portfolio for the first time at...
With an X-ray experiment at the European Synchrotron ESRF in Grenoble (France), Empa researchers were able to demonstrate how well their real-time acoustic monitoring of laser weld seams works. With almost 90 percent reliability, they detected the formation of unwanted pores that impair the quality of weld seams. Thanks to a special evaluation method based on artificial intelligence (AI), the detection process is completed in just 70 milliseconds.
Laser welding is a process suitable for joining metals and thermoplastics. It has become particularly well established in highly automated production, for...
02.07.2020 | Event News
19.05.2020 | Event News
07.04.2020 | Event News
03.07.2020 | Life Sciences
03.07.2020 | Earth Sciences
03.07.2020 | Life Sciences