Natalia Walker | |
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Awards | Fellow of the Society for Research on Nicotine and Tobacco |
Academic background | |
Alma mater | Pukerua Bay School, Kāpiti College , Victoria University of Wellington , University of Otago, Wellington , University of Auckland |
Thesis | |
Doctoral advisor | Stephen MacMahon , Anthony Rodgers |
Academic work | |
Institutions | University of Auckland |
Natalie K. Walker is a New Zealand academic,and is a Professor of Social and Community Health at the University of Auckland,specialising in the reduction of harm from non-communicable diseases such as cardiovascular disease and cancer. She has an interest in smoking cessation but also researches on alcohol,cannabis and sugar.
After a Bachelor of Science and a Master of Science,Walker joined the faculty of the University of Auckland in 1995,first as a Research Fellow. [1] [2] She completed a PhD in medicine titled Epidemiological studies of leg ulcers in Auckland,New Zealand at the University of Auckland in 2000. [3] Walker was later appointed to full professor. [1] Walker is associate director of the Centre for Addiction Research,and leads addiction research in the National Institute for Health Innovation. [2]
Walker's research focuses on respiratory and cardiovascular health,and the prevention and treatment of non-communicable diseases such as heart disease and cancer. She has a particular interest in smoking cessation,conducting community-based clinical trials to create evidence to inform policy decisions. She has researched reduced harm and replacement products,vapes,nicotine reduced products,and smokefree environments,and also researches other addictive substances such as cannabis,ibogaine and sugar. [4] [5] [6]
Walker and Chris Bullen led a team that was awarded a Research Excellence Medal by the University in 2018,for their work on ways to assist people quit smoking. [7] She was elected a Fellow of the Society for Research on Nicotine and Tobacco in 2019. [8]
Nicotine is a naturally produced alkaloid in the nightshade family of plants and is widely used recreationally as a stimulant and anxiolytic. As a pharmaceutical drug, it is used for smoking cessation to relieve withdrawal symptoms. Nicotine acts as a receptor agonist at most nicotinic acetylcholine receptors (nAChRs), except at two nicotinic receptor subunits where it acts as a receptor antagonist.
A cigarette is a narrow cylinder containing a combustible material, typically tobacco, that is rolled into thin paper for smoking. The cigarette is ignited at one end, causing it to smolder; the resulting smoke is orally inhaled via the opposite end. Cigarette smoking is the most common method of tobacco consumption. The term cigarette, as commonly used, refers to a tobacco cigarette, but the word is sometimes used to refer to other substances, such as a cannabis cigarette or a herbal cigarette. A cigarette is distinguished from a cigar by its usually smaller size, use of processed leaf, and paper wrapping, which is typically white.
Smoking cessation, usually called quitting smoking or stopping smoking, is the process of discontinuing tobacco smoking. Tobacco smoke contains nicotine, which is addictive and can cause dependence. As a result, nicotine withdrawal often makes the process of quitting difficult.
A vaporizer or vaporiser, colloquially known as a vape, is a device used to vaporize substances for inhalation. Plant substances can be used, commonly cannabis, tobacco, or other herbs or blends of essential oil. However, they are most commonly filled with a combination propylene glycol, glycerin, and drugs such as nicotine or tetrahydrocannabinol as a liquid solution.
Nicotine replacement therapy (NRT) is a medically approved way to treat people with tobacco use disorder by taking nicotine through means other than tobacco. It is used to help with quitting smoking or stopping chewing tobacco. It increases the chance of quitting tobacco smoking by about 55%. Often it is used along with other behavioral techniques. NRT has also been used to treat ulcerative colitis. Types of NRT include the adhesive patch, chewing gum, lozenges, nose spray, and inhaler. The use of multiple types of NRT at a time may increase effectiveness.
Nicorette is the brand name of a number of products for nicotine replacement therapy (NRT) that contain nicotine polacrilex. Developed in the late 1970s in Sweden by AB Leo in the form of a chewing gum, Nicorette was the first nicotine replacement product on the market.
Cytisine, also known as baptitoxine, cytisinicline, or sophorine, is an alkaloid that occurs naturally in several plant genera, such as Laburnum and Cytisus of the family Fabaceae. It has been used medically to help with smoking cessation. Although widely used for smoking cessation in Eastern Europe, cytisine remains relatively unknown beyond it. However, it has been found effective in several randomized clinical trials, including some in the United States and a large one in New Zealand, and is being investigated in additional trials in the United States and a non-inferiority trial in Australia in which it is being compared head-to-head with the smoking cessation aid varenicline. It has also been used entheogenically via mescalbeans by some Native American groups, historically in the Rio Grande Valley predating even peyote.
Varenicline, sold under the brand names Chantix and Champix among others, is a medication used for smoking cessation and for the treatment of dry eye disease. It is a nicotinic acetylcholine receptor partial agonist. When activated, this receptor releases dopamine in the nucleus accumbens, the brain's reward center, thereby reducing cravings and withdrawal symptoms with smoking cessation although less pronounced than a full agonist.
Nicotine withdrawal is a group of symptoms that occur in the first few weeks after stopping or decreasing use of nicotine. Symptoms include intense cravings for nicotine, anger or irritability, anxiety, depression, impatience, trouble sleeping, restlessness, hunger, and difficulty concentrating. Withdrawal symptoms make it harder to quit nicotine products, and most methods for quitting smoking involve reducing nicotine withdrawal. Quit smoking programs can make it easier to quit. Nicotine withdrawal is recognized in both the American Psychiatric Association Diagnostic and Statistical Manual and the WHO International Classification of Diseases.
Tobacco harm reduction (THR) is a public health strategy to lower the health risks to individuals and wider society associated with using tobacco products. It is an example of the concept of harm reduction, a strategy for dealing with the use of drugs. Tobacco smoking is widely acknowledged as a leading cause of illness and death, and reducing smoking is vital to public health.
An electronic cigarette (e-cigarette) or vape is a device that simulates tobacco smoking. It consists of an atomizer, a power source such as a battery, and a container such as a cartridge or tank. Instead of smoke, the user inhales vapor. As such, using an e-cigarette is often called "vaping". The atomizer is a heating element that vaporizes a liquid solution called e-liquid, which quickly cools into an aerosol of tiny droplets, vapor and air. The vapor mainly comprises propylene glycol and/or glycerin, usually with nicotine and flavoring. Its exact composition varies, and depends on several things including user behavior.
Nicotine dependence is a state of dependence upon nicotine. Nicotine dependence is a chronic, relapsing disease defined as a compulsive craving to use the drug, despite social consequences, loss of control over drug intake, and emergence of withdrawal symptoms. Tolerance is another component of drug dependence. Nicotine dependence develops over time as a person continues to use nicotine. The most commonly used tobacco product is cigarettes, but all forms of tobacco use and e-cigarette use can cause dependence. Nicotine dependence is a serious public health problem because it leads to continued tobacco use, which is one of the leading preventable causes of death worldwide, causing more than 8 million deaths per year.
Schizophrenia and tobacco smoking have been historically associated. Smoking is known to harm the health of people with schizophrenia.
The Easy Way to Stop Smoking is a self-help book written by British author and accountant Allen Carr first published in 1985. The book aims to help people quit smoking, offering a range of different methods. Although championed by many celebrities, there has been limited empirical study of Carr's method.
The scientific community in the United States and Europe are primarily concerned with the possible effect of electronic cigarette use on public health. There is concern among public health experts that e-cigarettes could renormalize smoking, weaken measures to control tobacco, and serve as a gateway for smoking among youth. The public health community is divided over whether to support e-cigarettes, because their safety and efficacy for quitting smoking is unclear. Many in the public health community acknowledge the potential for their quitting smoking and decreasing harm benefits, but there remains a concern over their long-term safety and potential for a new era of users to get addicted to nicotine and then tobacco. There is concern among tobacco control academics and advocates that prevalent universal vaping "will bring its own distinct but as yet unknown health risks in the same way tobacco smoking did, as a result of chronic exposure", among other things.
The Society for Research on Nicotine and Tobacco (SRNT) is an international nonprofit organization and professional association that studies and shares research on nicotine and tobacco use from a public health and scientific perspective. It is the largest organization focused on nicotine and tobacco, with members in 40 countries.
Jed Eugene Rose is an American academic professor, inventor and researcher in the field of nicotine and smoking cessation. Rose is presently the President and CEO of the Rose Research Center, LLC in Raleigh, North Carolina. Additionally, he is the Director of the Duke Center for Smoking Cessation at Duke University Medical Center.
Marewa Glover is a New Zealand public health academic specialising in smoking cessation. She has worked at the University of Auckland and been a full professor at Massey University. She set up the Centre for Research Excellence: Indigenous Sovereignty and Smoking (COREISS) in 2018.
Exposure to nicotine, from conventional or electronic cigarettes during adolescence can impair the developing human brain. E-cigarette use is recognized as a substantial threat to adolescent behavioral health. The use of tobacco products, no matter what type, is almost always started and established during adolescence when the developing brain is most vulnerable to nicotine addiction. Young people's brains build synapses faster than adult brains. Because addiction is a form of learning, adolescents can get addicted more easily than adults. The nicotine in e-cigarettes can also prime the adolescent brain for addiction to other drugs such as cocaine. Exposure to nicotine and its great risk of developing an addiction, are areas of significant concern.
Simon James Thornley is a New Zealand medical doctor and academic specialising in epidemiology and biostatistics, and as of 2021 is a senior lecturer at the University of Auckland.