Breaking News
March 22, 2019 - Less invasive valve replacement can be safe and effective alternative for healthier patients
March 22, 2019 - Aphasia research reveals new, complex interactions between thought and language
March 22, 2019 - Artificial neural networks can predict how different areas in the brain respond to words
March 22, 2019 - Age-related changes to gut microbiome have adverse impact on vascular health, study shows
March 22, 2019 - Isolated seniors chat online to prevent cognitive decline
March 22, 2019 - Karyopharm Announces FDA Extension of Review Period for Selinexor New Drug Application
March 22, 2019 - Eruptive xanthomatosis
March 22, 2019 - Cause of vascular disease in kidney failure reversed in animal model
March 22, 2019 - Researchers discover possible new therapeutic strategy for pancreatic cancer
March 22, 2019 - Ebola spreads to second largest city in DRC
March 22, 2019 - Perivascular spaces contribute to worse cognitive health in older adults
March 22, 2019 - Adolescent daily users more likely to obtain electronic cigarettes from commercial sources
March 22, 2019 - FDA Approves Genentech’s Tecentriq in Combination With Chemotherapy for the Initial Treatment of Adults With Extensive-Stage Small Cell Lung Cancer
March 22, 2019 - Diabetes myths and facts: MedlinePlus Medical Encyclopedia
March 22, 2019 - TGen and ABL pursue global rollout of advanced TB test
March 22, 2019 - Traffic light labels influence people to choose healthier and more sustainable meals
March 22, 2019 - Alzheimer’s patients using antiepileptic drugs have twice the risk of pneumonia, study shows
March 22, 2019 - Skin diseases may be more prevalent than previously thought
March 22, 2019 - Overall rates of death from breast cancer are falling across the EU
March 22, 2019 - Novel plasmid could hold key to control of mosquito-borne illness
March 22, 2019 - Female Emergency Physicians Paid Less Than Males
March 22, 2019 - Estimated average glucose (eAG): MedlinePlus Medical Encyclopedia
March 22, 2019 - Experimental drug could be new option for type 2 diabetes
March 22, 2019 - Five Things To Know About The Electronic Health Records Mess
March 22, 2019 - TMJ disorders could be treated with tissue-engineered implants after successful animal study
March 22, 2019 - Team-based approach is key to successful care of pregnant women with heart failure
March 22, 2019 - Study identifies gene variant associated with accelerated cellular aging
March 21, 2019 - Salk scientists show how background noise from neurons can interrupt focused attention
March 21, 2019 - New class of drugs could help treat patients diagnosed with ovarian cancer
March 21, 2019 - Tecentriq Approved for Small Cell Lung Cancer
March 21, 2019 - Adipocyte glucocorticoid receptors play a role in developing steroid diabetes
March 21, 2019 - Climate change can affect nutrient content of crops, harming human health
March 21, 2019 - Podcast: KHN’s ‘What The Health’ Surprise! Fixing Surprise Medical Bills Is Harder Than it Looks
March 21, 2019 - Chemistry researchers patent new method for making anti-leukemia compounds
March 21, 2019 - UIC scientists identify hidden proteins in bacteria
March 21, 2019 - New Australian drug trial achieves remarkable results in patients with acute myeloid leukemia
March 21, 2019 - Females live longer when they have help raising offspring
March 21, 2019 - How did orthodontists sell orthodontics?
March 21, 2019 - In the Spotlight: From dietitian to physician assistant student
March 21, 2019 - The CRISPR Revolution: What You Need to Know
March 21, 2019 - FDA Chief Calls For Stricter Scrutiny Of Electronic Health Records
March 21, 2019 - Combined glucocorticoid and antioxidant therapy could benefit premature babies
March 21, 2019 - Low levels of certain eye proteins could serve as predictor for Alzheimer’s
March 21, 2019 - Post-traumatic holocaust survivors transmit negative views on aging to offspring
March 21, 2019 - City of Hope receives $7.5 million in grant awards to study cutaneous T cell lymphoma
March 21, 2019 - New video game-led training device helps stroke survivors regain arm mobility
March 21, 2019 - Compounds in coffee could slow prostate cancer growth
March 21, 2019 - New mobile DNA element in Wolbachia may contribute to improved disease control strategies
March 21, 2019 - Phase 2 Clinical Trial of Bermekimab Shows Potential New Standard of Care for Treatment of Hidradenitis Suppurativa, Including Significant Pain Reduction without Antibiotics
March 21, 2019 - More than one-third of patients risk major bleeding by doubling up on blood thinners
March 21, 2019 - A skeptical look at popular diets: Thumbs up for Mediterranean
March 21, 2019 - PTSD After Cardiac Arrest Predicts More Heart Trouble
March 21, 2019 - Role of immunological imprinting in elicitation of new antibodies
March 21, 2019 - Breast cancer relapse predictor tool may soon be a reality
March 21, 2019 - New computer program developed by TGen lights up cancer-causing genetic mutations
March 21, 2019 - FDA warns two breast implant makers for failure to comply with post-approval study requirements
March 21, 2019 - Butler Hospital receives COBRE grant to enhance research on neuropsychiatric illnesses
March 21, 2019 - Majority of osteoporosis clinical practice guidelines ignore patients’ voices
March 21, 2019 - Generic messages don’t help patients to lose weight
March 21, 2019 - Eisai and Imbrium Therapeutics Announce U.S. FDA Filing Acceptance of New Drug Application for Lemborexant for the Treatment of Insomnia
March 21, 2019 - Two-drug combos using popular calcium channel blocker show superiority in lowering BP
March 21, 2019 - Q BioMed and Mannin Research collaborate with McMaster University to develop GDF15 biomarker glaucoma diagnostic kit
March 21, 2019 - First-in-human pilot study shows positive results for ‘bacteria-phobic’ catheter
March 21, 2019 - Itamar Medical launches next-generation WatchPAT system for home sleep apnea testing
March 21, 2019 - Study estimates health and economic impacts of healthy food prescriptions
March 21, 2019 - Detecting fungal disease in crops with multispectral imaging system
March 21, 2019 - MIT announces creation of the Alana Down Syndrome Center
March 21, 2019 - Next-generation LVAD device clinically superior, safer for heart failure patients
March 21, 2019 - Allergan Announces FDA Approval of Avycaz (ceftazidime and avibactam) for Pediatric Patients
March 21, 2019 - Mutations in noncoding genes could play big role in regulating cancer, study finds
March 21, 2019 - A medical student’s thoughts on Match Day
March 21, 2019 - Are eggs good or bad for you?
March 21, 2019 - New analysis reveals precision oncology insights for colorectal cancer
March 21, 2019 - Pollutants appear to weaken immune system and increase pathogen virulence
March 21, 2019 - Researchers develop and validate scale for rating severity of mononucleosis
March 21, 2019 - Scientists identify generation of key immune response in mice on introducing solid food
March 21, 2019 - New nanomaterial could restore internal structure of damaged bones
March 21, 2019 - Selective destruction of prostate tumor as effective as complete prostate removal
March 21, 2019 - 2011 to 2015 Saw Increase in Psychiatric ED Visits for Youth
March 21, 2019 - Tapeworm drug targets common vulnerability in tumor cells
Common cause of sneezing and sniffling likely to shift northward under climate change

Common cause of sneezing and sniffling likely to shift northward under climate change

image_pdfDownload PDFimage_print

New research from the University of Washington and the University of Massachusetts – Amherst looks at how the most common cause of sneezing and sniffling in North America is likely to shift under climate change.

A recent study published in the open-access journal PLOS ONE finds that common ragweed will expand its range northward as the climate warms, reaching places including New York, Vermont, New Hampshire, and Maine, while retreating from some current hot spots.

“It was surprising that nobody had looked at ragweed distributions in the U.S.: As climate conditions are changing, where will it spread to in the future?” said corresponding author Michael Case, who did the work as a postdoctoral researcher in the UW School of Environmental and Forest Sciences.

Ragweed is a native North American plant that thrives in open areas, moving quickly into disturbed areas. It produces copious fine-powder pollen from August to November, causing sneezing, runny noses, irritated eyes, itchy throats and headaches for people with hay fever.

Several studies of ragweed’s future geographic distribution have been done in Europe, where people are concerned because this invasive species is expanding its range. This is the first study to consider future ragweed distribution in the United States.

Case’s previous research looks at how climate change may influence the distribution of various species, mainly native trees in the Pacific Northwest. Co-lead author Kristina Stinson, an assistant professor of plant ecology at UMass Amherst, is an expert on ragweed, including mapping allergy hot spots in New England.

“One reason we chose to study ragweed is because of its human health implications. Ragweed pollen is the primary allergen culprit for hay fever symptoms in summer and fall in North

America, so it affects a lot of people,” Stinson said.

For the new study, the two authors built a machine learning model using Maxent software that takes some 726 observations of common ragweed in the eastern U.S., drawn from an international biodiversity database, then combines those with climate information to identify conditions that allow the plant to thrive. Researchers next ran the model into the future using temperature and precipitation output from 13 global climate models under two different pathways for future greenhouse gas emissions.

The results show that roughly 35 years from now, ragweed is projected to expand northward into places where it has not been documented, including upstate New York, including the Albany area, New Hampshire, Maine and Vermont.

While that news may be ominous, knowing the plant is coming may help those communities prepare.

“Weed control boards, for example, might include ragweed on their list to keep an eye out and monitor for,” Case said. “Historically they might not have been looking for ragweed, but our study suggests maybe they should start looking for it.”

The study only covers the region east of the Mississippi River because that’s where there were enough ragweed observations to run the model. The plant is commonly found in Illinois, Florida and the eastern seaboard from Washington, D.C. to Rhode Island. It is possible that ragweed would also expand its range westward or north into Canada, Case said, but those areas were outside the scope of the study.

The study also finds regions where ragweed is prevalent today but will decline substantially in the future, including the southern Appalachian Mountains, central Florida and northeastern Virginia. And knowing that, too, might be useful.

“As the climate becomes less suitable, there may be opportunities to try and displace ragweed. Maybe that is the silver lining — that there are some opportunities for those communities to actually get some headway on mitigating or even eradicating this species,” Case said.

Models show an overall surge in ragweed in the eastern U.S. by the 2050s followed by a slight overall contraction from the 2050s to the 2070s, as temperature and precipitation become more variable.

“It is kind of an interesting case study of climate change effects: It’s not all bad, it’s not all good,” Case said.

“We don’t have a lot of models like this that tell us where individual species may go under different scenarios,” Stinson said. “Ecologists are working on doing this type of study for more species, but there are not always enough data points from around the world; individual species data are rare. But ragweed happens to be quite abundant, which made this study feasible.”

Source:

http://www.washington.edu/news/2018/11/08/common-allergen-ragweed-will-shift-northward-under-climate-change/

Tagged with:

About author

Related Articles