The genetics of nicotine addiction liability: Ethical and social policy implications

Aim To assess the promise and risks of technological applications of genetic research on liability to develop nicotine dependence. Methods We reviewed (i) the evidence on the genetics of nicotine dependence; (ii) the technical feasibility of using genetic information to reduce smoking uptake and increase cessation; and (iii) policy and ethical issues raised by the uses of genetic information on addiction liability. Results (i) Despite evidence from twin studies that genes contribute to addiction susceptibility, research to date has not identified commonly occurring alleles that are strongly predictive of developing nicotine addiction. Nicotine addiction is likely to involve multiple alleles of small effect that interact with each other and with the environment. (ii) Population screening for susceptibility alleles is unlikely to be effective or cost-effective. Tailoring of smoking cessation treatments with genetic information is more plausible but results to date have been disappointing. Population health strategies such as increased taxation and reduced opportunities to smoke are more efficient in reducing cigarette smoking. Tobacco harm reduction policies applied to populations may also play a role in reducing tobacco-related harm. (iii) Future uses of genomic information on addiction risk will need to assess the risks of medicalising addiction (e.g. pessimism about capacity to quit) and community concerns about genetic privacy. Conclusions Nicotine genomics is a very new and underdeveloped field. On the evidence to date, its advocates would be wise to avoid extravagant claims about its preventive applications

The caregiving experience: How much do health professionals understand?

Legal, social and economic factors have changed the delivery of care to people who have a mental disorder. Many of these people are now treated in the community and they live with or in close proximity to their family. The aim of this paper is to provide health professionals with an insight into the experience of being a caregiver to a person with a mental disorder. For these families caregiving becomes an integral part of everyday life.Positive outcomes for both the caregiver and the ill family member are more likely to occur when effective levels of collaboration exist between health professionals and caregivers. Collaboration is enhanced when caregivers and health professionals value each other's contribution to the ill family member's care. Often the burden, stress, and socio-economic effects on the family caring for a person with mental illness is not sufficiently appreciated and further increases this burden. A review of the literature from the caregiver's perception is presented. An increased understanding of the caregiving experience will enable health professionals to develop and implement strategies that facilitate positive outcomes for the caregiver and the ill family member