Breaking News
February 17, 2019 - Support from trusted adults can reduce risk of dying in suicidal teens, finds study
February 17, 2019 - Heart attack awareness improved since 2008
February 17, 2019 - Exercise gives a better brain boost to older men than women
February 17, 2019 - New research disproves previous assumptions of how looks influence personality
February 17, 2019 - Cannabis use as a teenager linked to depression later in life
February 17, 2019 - Sinks by Toilets in ICU Patient Rooms Harbor Harmful Bacteria
February 17, 2019 - Cancer cells’ plasticity makes them harder to stop
February 17, 2019 - Young cannabis users have increased risk of depression and suicidal behavior
February 17, 2019 - Tasmanian Devils Likely to Survive Cancer Scourge
February 17, 2019 - Neoadjuvant PD-1 blockade seems effective in glioblastoma
February 17, 2019 - Personal, social factors play role in enabling sustainable return to work after ill health
February 17, 2019 - Mouse studies show ‘inhibition’ theory of autism wrong
February 17, 2019 - Study shows how neuroactive steroids inhibit activity of pro-inflammatory proteins
February 17, 2019 - Use of liver grafts from older donors decreased despite better outcomes in recipients
February 17, 2019 - MUSC researchers discover new mechanism for a class of anti-cancer drugs
February 17, 2019 - HPV misconceptions are causing women to miss smear tests
February 17, 2019 - Sanofi and Regeneron Offer Praluent (alirocumab) at a New Reduced U.S. List Price
February 17, 2019 - Researchers say auditory testing can identify children for autism screening
February 17, 2019 - New method analyzes how single biological cells react to stressful situations
February 17, 2019 - WVU gynecologic oncologist investigates novel treatment for cervical and vaginal cancers
February 17, 2019 - ADHD diagnoses poorly documented
February 17, 2019 - Majority of gender minority youth do not identify with traditional sexual identity labels
February 17, 2019 - AbbVie, Teneobio enter into strategic transaction to develop potential treatment for multiple myeloma
February 17, 2019 - Lower Birth Weight May Up Risk for Psychiatric Disorders
February 17, 2019 - Scientists identify reversible molecular defect underlying rheumatoid arthritis
February 17, 2019 - Moffitt researchers shed light on how CAR T cells function mechanistically
February 16, 2019 - Female Anatomy May Play Big Role in Sperm’s Success
February 16, 2019 - BMI may mediate inverse link between fiber intake, knee OA
February 16, 2019 - Movement impairments in autism can be reversed through behavioral training
February 16, 2019 - Studies address racial disparities in postpartum period and cardiovascular health
February 16, 2019 - Scientists implicate hidden genes in the severity of autism symptoms
February 16, 2019 - Decreased deep sleep linked to early signs of Alzheimer’s disease
February 16, 2019 - Neuroscientists show how the brain responds to texture
February 16, 2019 - Gilead Announces Topline Data From Phase 3 STELLAR-4 Study of Selonsertib in Compensated Cirrhosis (F4) Due to Nonalcoholic Steatohepatitis (NASH)
February 16, 2019 - What Can I Do About Sweating? (for Teens)
February 16, 2019 - Companies navigate dementia conversations with older workers
February 16, 2019 - Newly developed stem cell technologies show promise for treating PD patients
February 16, 2019 - Collaborative material research could advance self-assembling nanomaterials
February 16, 2019 - Researchers take major step in creating technology that mimics the human brain
February 16, 2019 - Erasing memories associated with cocaine use reduces drug seeking behavior
February 16, 2019 - Artificial intelligence can accurately predict prognosis of ovarian cancer patients
February 16, 2019 - Racial disparities in cancer deaths on the decline for America
February 16, 2019 - FDA authorizes new interoperable insulin pump for children, adults with diabetes
February 16, 2019 - Coexisting Medical Conditions, Smoking Explain PTSD-CVD Link
February 16, 2019 - Skin Cancer Screening: MedlinePlus Lab Test Information
February 16, 2019 - ‘Happiness’ exercises can boost mood in those recovering from substance use disorder
February 16, 2019 - Cell manipulation could soon halt or reverse aging
February 16, 2019 - Pumped Breast Milk Falls Short of Breastfed Version
February 16, 2019 - Men’s porn habits could fuel partners’ eating disorders, study suggests
February 16, 2019 - Rapid progression of age-related diseases may result from formation of vicious cycles
February 16, 2019 - Immune checkpoint molecule protects against future development of cancer
February 16, 2019 - New method produces hydrogels that have properties similar to cells’ environment
February 16, 2019 - $4.1 million funding for heart research on Valentine’s Day
February 16, 2019 - General anesthesia in early infancy unlikely to have lasting effects on developing brains
February 16, 2019 - New breakthroughs for muscular dystrophy research
February 16, 2019 - First Opinion: Embryo editing for higher IQ is a fantasy. Embryo profiling for it is almost here
February 16, 2019 - Vapers develop cancer-related gene deregulation as cigarette smokers
February 16, 2019 - Bringing Antimicrobial Susceptibility Testing (AST) to the Community
February 16, 2019 - Decolonization protocol after hospital discharge can prevent dangerous infections
February 16, 2019 - Children with ASD more likely to face maltreatment, study finds
February 16, 2019 - Study finds genetic vulnerability to use of menthol cigarettes
February 16, 2019 - Promising drug developed to rejuvenate muscle cells
February 16, 2019 - H-RT should be the standard of care for men with low risk prostate cancer, study shows
February 16, 2019 - New technique using patients’ own modified cells could help treat Crohn’s disease
February 16, 2019 - Therapeutic endoscopy has an expanding role in the treatment of IBD
February 16, 2019 - Blood clot discovery could lead to development of better treatments for blood diseases
February 16, 2019 - Intervention can increase exclusive breastfeeding rates
February 16, 2019 - New project explores how gaming technologies can help cancer patients communicate better
February 16, 2019 - Catalyst Biosciences Presents Updated Data from Its Phase 2/3 Trial of Subcutaneous Marzeptacog Alfa (Activated) in Individuals with Hemophilia A or B with Inhibitors at the 12th Annual EAHAD Congress
February 16, 2019 - Rerouting nerves during amputation reduces phantom limb pain before it starts
February 16, 2019 - A Hormone Produced When We Exercise Might Help Fight Alzheimer’s
February 16, 2019 - Millions of British people breathe toxic air travelling to GPs
February 16, 2019 - Conformance of genetic characteristics found to be crucial for longer preservation of kidney graft
February 16, 2019 - Researchers use optogenetic tool to control, visualize receptor signals in neural cells
February 16, 2019 - New reversible antiplatelet therapy could reduce risk of blood clots, prevent cancer metastasis
February 16, 2019 - Testosterone is not the only hormone needed for penis development
February 16, 2019 - FDA Advisory Committee Recommends Approval of Spravato (esketamine) Nasal Spray for Adults with Treatment-Resistant Depression
February 15, 2019 - Heart surgery technology developed at Baptist Health debuts after years of secrecy
February 15, 2019 - Prescription Opioids Double Risk of Triggering Fatal Car Crash
February 15, 2019 - New study helps doctors better understand high blood pressure in pregnant women
Air pollution increases risk of dementia

Air pollution increases risk of dementia

image_pdfDownload PDFimage_print

A new study has shown that air pollution raises the risk of dementia. The risk remains among people of all ages find researchers.

The data based in London shows that persons over the age of 50 who are living in regions that have greater concentrations of nitrogen oxide have a 40 percent greater risk of developing dementia compared to people who live in areas with lower NOx pollution. The results of the study appeared in the latest issue of the BMJ Open Journal this week.

Image Credit: Aizuddin Saad / Shutterstock

Image Credit: Aizuddin Saad / Shutterstock

The researchers explain that there was no direct connection between dementia and air pollution but there seems to be a connection between the two that cannot be explained by other risk factors. Air pollution has been associated with heart disease and respiratory disease said Professor Frank Kelly, of environmental health at King’s College London. This is the first study that shows an association of air pollution with a neurodegenerative disease he explained. He said there is sufficient information to suggest air pollution as a risk factor for dementia. He explained that around 60,000 cases of the total 850000 dementia patients (approximately 7 percent) in United Kingdom could be related to higher air pollutant exposure.

Air pollution has recently come under the scanner with a study finding pollutants crossing over into the placenta of the pregnant women and yet another study in China showing exposure to air pollutants causing impairment of intelligence in children. This loss of intelligence is equal to the loss of around a year of education among the children the researchers had found. This new study from Kings College serves to add to these earlier studies.

The study looked at the air and noise pollution at various parts of London and compared it with patient health records for nearly 131,000 patients between ages 50 and 79 years. The records were anonymised and were obtained from 75 GP clinics within M25. The health records of these patients were followed for seven years since 2005 provided by a governmental, not-for-profit service called the Clinical Practice Research Datalink. During the study period, 1.7 percent of the patient population developed dementia. The dementia risk was correlated with the home postcodes of the patients.

While this study adds to the earlier research on the detrimental effects of air pollution, it does not individually track all the lifestyle factors that could be associated with dementia. Furthermore individual exposure to air pollutants is also not specifically studied and connected with dementia risk.

According to the authors of the paper, “Traffic related air pollution has been [linked to] poorer cognitive development in young children, and continued significant exposure may produce neuroinflammation and altered brain innate immune responses in early adulthood.” This inflammation could be the reason behind the association of the air pollutants and dementia they explain.

Iain Carey, a senior lecturer of epidemiology in the Population Health Research Institute at St. George’s University of London and lead author of the paper said, “While the findings need to be treated with caution, the study is an important addition to the growing evidence for a possible link between traffic pollution and dementia.” He said that this study would encourage further research to understand the connection between air pollution and dementia better.

Alternative fuels and motorized vehicles, safe cycling avenues, smoking cessation and also affordable and easy public transport are some of the ways to bring down air pollution as are regulations that reduce auto-emissions. The number of dementia cases in UK could soon climb from the present 850,000 to 1 million by 2025 and 2 million by 2050 say health authorities. According to the World Health Organization globally there are 47 million people living with Alzheimer’s disease and other dementias and this number is set to rise to 75 million by 2030 and become triple the numbers by 2050.

Source:

https://bmjopen.bmj.com/content/8/9/e022404

Tagged with:

About author

Related Articles