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Objective: The objective of the study was to compare multimorbidity prevalence using self-reported and administrative data and identify factors associated with agreement between data sources., Study Design and Setting: Self-reported cross-sectional data from four Canadian Community Health Survey waves were linked to administrative data in Ontario, Canada. Multimorbidity prevalence was examined using two definitions, 2+ and 3+ chronic conditions (CCs). Agreement between data sources was assessed using Kappa and Phi statistics. Logistic regression was used to estimate associations between agreement and sociodemographic, health behavior, and health status variables for each multimorbidity definition., Results: Regardless of multimorbidity definition, prevalence was higher using administrative data (2+ CCs: 55.5% vs. 47.1%; 3+ CCs: 30.0% vs. 24.2%). Agreement between data sources was moderate (2+ CCs K = 0.482; 3+ CCs K = 0.442), and while associated with sociodemographic, health behavior, and health status factors, the magnitude and sometimes direction of association differed by multimorbidity definition., Conclusion: A better understanding is needed of what factors influence individuals' reporting of CCs and how they align with what is in administrative data as policy makers need a solid evidence base on which to make decisions for health planning. Our results suggest that data sources may need to be triangulated to provide accurate estimates of multimorbidity for health services planning and policy., (Copyright © 2020 Elsevier Inc. All rights reserved.)

Objective: The objective of this study is to describe agreement between administrative and self-report data on the number and type of chronic conditions (CCs) and determine whether associations between CC count and health service use differ by data source., Study Design and Setting: We linked Canadian Community Health Survey and administrative data for a cohort of adults aged 45+ years in Ontario and identified 12 CCs from both data sources. Agreement was described by count and constituent CCs. We estimated associations between CC count (self-report and administrative data) and health service use (administrative data only) over 1 year., Results: Among 71,317 adults, 26.9% showed agreement on both count and constituent CCs but agreement declined with increasing CCs. Health service use increased with CC count but the association was stronger when CCs were measured with administrative data. For example, when measured with administrative data, the odds of a general practitioner visit for 5+ CCs vs. none was 20.3 (95% CI 20.0-20.5) but when using self-report data, the estimate was 8.0 (95% CI 7.8-8.2)., Conclusion: Agreement on the number of CCs was low and resulted in different estimates on the association with health service use, illustrating the challenges in CC measurement and the ability to interpret the effects on outcomes., (Copyright © 2020 Elsevier Inc. All rights reserved.)

Drug transporters are critically important for the absorption, distribution, metabolism, and excretion (ADME) of many drugs and endogenous compounds. Therefore, disruption of these pathways by inhibition, induction, genetic polymorphisms, or disease can have profound effects on overall physiology, drug pharmacokinetics, drug efficacy, and toxicity. This white paper provides a review of changes in transporter function associated with acute and chronic disease states, describes regulatory pathways affecting transporter expression, and identifies opportunities to advance the field., (© 2018, The American Society for Clinical Pharmacology and Therapeutics.)

The Mediterranean Diet Foundation, in collaboration with the International Menarini Foundation, organized the "International Conference on Mediterranean Diet and Health: A Lifelong Approach." The Conference was held in Ostuni (Puglia, Italy) from March 30 to April 1, 2017. The event received the endorsement of the American Federation for Aging Research, the Research Consortium "Luigi Amaducci," the European Nutrition for Health Alliance, the European Union Geriatric Medicine Society, the Clinical Section of the International Association of Gerontology and Geriatrics-European Region, the National Research Council Research Project on Aging, the Italian Society of Gerontology and Geriatrics, and the Italian Society of Clinical Nutrition and Metabolism. During the conference, results were presented from major studies on dietary interventions aiming to assess the efficacy of the Mediterranean diet in the prevention of chronic diseases and the potential underlying mechanisms. Twenty-six international speakers, in seven different sessions, discussed the biological basis, clinical impact, health policy, and behavioral implications of the Mediterranean diet, and its use in potential interventions for health promotion., (Copyright © 2018 Elsevier Inc. All rights reserved.)

Background: Recent years have seen an exponential increase in people with long-term conditions using the Internet for information and support. Prior research has examined support for long-term condition self-management through the provision of illness, everyday, and emotional work in the context of traditional offline communities. However, less is known about how communities hosted in digital spaces contribute through the creation of social ties and the mobilization of an online illness "workforce.", Objective: The aim was to understand the negotiation of long-term condition illness work in patient online communities and how such work may assist the self-management of long-term conditions in daily life., Methods: A systematic search of qualitative papers was undertaken using various online databases for articles published since 2004. A total of 21 papers met the inclusion criteria of using qualitative methods and examined the use of peer-led online communities for those with a long-term condition. A qualitative meta-synthesis was undertaken and the review followed a line of argument synthesis., Results: The main themes identified in relation to the negotiation of self-management support were (1) redressing offline experiential information and knowledge deficits, (2) the influence of modeling and learning behaviors from others on self-management, (3) engagement that validates illness and negates offline frustrations, (4) tie formation and community building, (5) narrative expression and cathartic release, and (6) dissociative anonymity and invisibility. These translated into a line of argument synthesis in which four network mechanisms for self-management support in patient online communities were identified. These were (1) collective knowledge and identification through lived experience; (2) support, information, and engagement through readily accessible gifting relationships; (3) sociability that extends beyond illness; and (4) online disinhibition as a facilitator in the negotiation of self-management support., Conclusions: Social ties forged in online spaces provide the basis for performing relevant self-management work that can improve an individual's illness experience, tackling aspects of self-management that are particularly difficult to meet offline. Membership in online groups can provide those living with a long-term condition with ready access to a self-management support illness workforce and illness and emotional support. The substitutability of offline illness work may be particularly important to those whose access to support offline is either limited or absent. Furthermore, such resources require little negotiation online because information and support is seemingly gifted to the community by its members.

Children and young people who have long-term conditions are likely to seek health-related information via the Internet. Because of their continuing contact with children with such conditions, primary care practitioners may be well placed to discuss with them and their families the risks and benefits of accessing information online. This includes not only the relative merits of particular sites but also more general online safety issues. To achieve this, it may be helpful for primary care practitioners to consider how they view risk in general, the risks associated with the Internet and the vulnerabilities of children and young people, particularly those with long-term conditions.

Aim: The increase in the number of people with chronic obstructive pulmonary disease (COPD) and the disease burden, has prompted concerted efforts to improve healthcare, particularly outpatient services. In line with these attempts the Partnership-Based Nursing Practice Theoretical Framework for People with COPD was developed to guide outpatient nursing care. The principal approach of the framework is a ‘Dialogue’ with the patients, which has four components: ‘Establishing family involvement’, ‘Assisting living with symptoms’ and ‘Facilitating access to healthcare’, with the primary goal being ‘Enhancement of the health experience’. With new knowledge, research on the framework, and extensive experience in using it, a need arose to modify the framework to maximize its clinical utility. Design: Discursive paper. Methods: A narrative review and critical reflection was conducted to revise the nursing practice framework via selected literature search from 2012 to 2022, research on the framework, and the authors' reflections on the clinical experience of using the framework. Results: The nursing practice framework highlights capacities and possibilities that lie in the nurse–patient relationship. The overarching dialogue in the revised framework includes both patients and families. The action-related component ‘Assisting living with the disease’ was added to the framework to underscore the significance of attempting to understand what may lie ahead for patients and families. The other action-related components are as follows: ‘Assisting living with symptoms’ and ‘Facilitating access to healthcare’. The primary goal remains unchanged: enhancing the ‘Health experience’. Conclusion: Using the revised nursing practice framework in outpatient care may help to enhance the lives of people with COPD and their families, particularly at advanced stages of the disease. It may have transferability to other groups of people living with progressive diseases dealing with complicated health problems, and to reduce the usage of costly healthcare resources such as hospital care. Implications for the Profession and/or Patient Care: The partnership-based nursing practice framework assumes an extension of conventional specialized respiratory service and embraces a comprehensive account for that which may influence the patient's health problems. This guidance, which holistically attends to patient-family needs of living with complicated and progressive health predicaments, is fundamental. It contributes to strengthening the disciplinary focus of nursing, interdisciplinary collaboration, person-family-centred quality nursing care and inspires research initiatives. Critical reflections and updates on nursing practice frameworks, such as this revision, are essential to advance nursing and healthcare. [ABSTRACT FROM AUTHOR]

Food intake, lifestyle behaviors, and obesity are linked to the development of chronic diseases such as type 2 diabetes, certain cancers, and cardiovascular diseases. It is recognized that physical and social environment influences individuals' behaviors, and some population subgroups such as racial/ethnic minorities and individuals with low socioeconomic status or limited literacy or language abilities seem to be especially vulnerable to disparities in disease risk factors, disease prevalence, or health outcomes. Certain life cycle phases appear to be especially important for health promotion and disease prevention as the development of chronic diseases can take several decades. Such complex health issues often require system-wide, multifactorial, and multidisciplinary solutions. Social ecological models, with approaches spanning from individual level to macro policy level, can provide registered dietitians (RDs) and dietetic technicians, registered (DTRs) with a comprehensive framework to promote health and to prevent chronic diseases. Furthermore, the Nutrition Care Process can be utilized in carrying out the health promotion and disease prevention efforts. RDs and DTRs have the training and requisite skills to be leaders and active members of multidisciplinary teams to promote health and prevent chronic diseases across the life span. The position of the Academy of Nutrition and Dietetics states that primary prevention is the most effective, affordable method to prevent chronic disease, and that dietary intervention positively impacts health outcomes across the life span. RDs and DTRs are critical members of health care teams and are essential to delivering nutrition-focused preventive services in clinical and community settings, advocating for policy and programmatic initiatives, and leading research in disease prevention and health promotion. In concordance with the Academy's position, this practice paper provides an overview of practice examples, effective program components, and a comprehensive range of health promotion and chronic disease prevention strategies for RDs and DTRs. This paper supports the "Position of the Academy of Nutrition and Dietetics: The Role of Nutrition in Health Promotion and Chronic Disease Prevention" published in the July 2013 Journal of the Academy of Nutrition and Dietetics., (Copyright © 2013 Academy of Nutrition and Dietetics. Published by Elsevier Inc. All rights reserved.)

The management of chronic diseases is a prime challenge of most 21st century health care systems. Many Western countries have invested heavily in care plans oriented towards specific conditions and diseases, such as dementia and cancer. The major downside of this narrowly focused approach is that treatment of multimorbidity is ignored. This paper describes the development and main stance of a national position that proposes streamlined reforms of the Belgian health care system to improve care for patients with multiple chronic diseases. We used a combination of methods to develop this stance: literature review and stakeholders' consultation. The latter identified areas for improvement: efficiency of the health care system, coordination of care, investments in human care resources, informal caregivers' support, better accessibility, and changes in the financial payment system. The position paper list 20 recommendations that are translated into about 50 action points to reform the health care system. Chronic care tailored to the patient's needs, including implementation of multidisciplinary teamwork, new functions, task delegation in primary care, and empowerment of the patient and informal caregivers are some major areas discussed. In addition, improved support, revised payment mechanisms, and setting up a quality system, along with the tailoring of patient care, can all facilitate delivery of high quality care in patients with chronic comorbidities., (Copyright © 2013 The Authors. Published by Elsevier Ireland Ltd.. All rights reserved.)

This paper explores the nature of the nursing contribution to chronic disease management (CDM) and identifies a number of key nursing activities within CDM both at the individual patient and care system levels. The activities were identified following a detailed review of the literature (160 reports and studies of nursing practice) relating to three tracer disorders: diabetes, chronic obstructive pulmonary disease and multiple sclerosis. The paper examines these activities collectively to generate models expressing some of the core functions of nursing within CDM. The paper illustrates some of the changing characteristics of nursing roles within CDM. More fundamentally, the paper questions the position of nursing in relation to the technologies that define CDM systems and proposes four levels of contribution: the nurse as technology; the nurse as technologist; the nurse as system engineer; and the nurse as architect. These different levels reflect distinctions in the nature of the nursing gaze and power relations within the health care workforce. The paper also highlights how nurses are failing to develop the evidence for their practice in CDM. The paper concludes that there is a need for some clear principles to guide clinical practice and encourage innovation in CDM. It is argued that the principles should not be rule-bound but define a distinctive nursing gaze that will position the nursing profession within the health care system and in relation to other professions. The gaze should incorporate the needs of the individual patient and the care system that they inhabit.

Healthcare systems in Europe struggle with inadequate co-ordination of care for people with chronic conditions. Moreover, there is a considerable evidence gap in the treatment of chronic conditions, lack of self-management, variation in quality of care, lack of preventive care, increasing costs for chronic care, and inefficient use of resources. In order to overcome these problems, several approaches to improve the management and co-ordination of chronic conditions have been developed in European healthcare systems. These approaches endeavour to improve self-management support for patients, develop clinical information systems and change the organisation of health care. Changes in the delivery system design and the development of decision support systems are less common. Almost as a rule, the link between healthcare services and community resources and policies is missing. Most importantly, the integration between the six components of the chronic care model remains an important challenge for the future. We find that the position of primary care in healthcare systems is an important factor for the development and implementation of new approaches to manage and coordinate chronic conditions. Our analysis supports the notion that countries with a strong primary care system tend to develop more comprehensive models to manage and co-ordinate chronic conditions.

Non-adherence to medications is a prevalent and persistent healthcare problem, particularly for patients with a chronic disorder. Researchers have endeavoured to address poor adherence for the past five decades resulting in the accumulation of a vast body of literature. Despite the enormity of research conducted, interventions to date have neither been cost-effective nor predictably clinically effective in enhancing medication adherence. Though concerning, such contemporary information serves to refocus attention on the adequacy of knowledge regarding the factors influencing medication non-adherence. Although little consensus exists regarding the optimal categorisation of these influencing factors, increasingly, the broad and 'all encompassing' categorisation of intentional and unintentional factors is being used to account for patient medication-taking behaviours and actions. An extensive review of the related literature provides the basis for a critical discussion on the value and comprehensiveness of this current classification in guiding future adherence research and consequent clinical interventions. An appraisal of this categorisation is important if decisions regarding interventions are not to be made in a vacuum of insufficient understanding, which would result in the continued ineffective use and distribution of valuable resources to combat non-adherence.

People with serious mental illness have higher morbidity and mortality rates of chronic diseases than the general population. This discussion paper explores the complex reasons for these disparities in health, such as limitations of health services, the effects of having a serious mental illness, health behaviours and the effects of psychotropic medication. Physical health can be enhanced by improved monitoring and lifestyle interventions initiated at the start of treatment. There are opportunities for mental health nurses to play a significant role in improving both the physical and mental health of people with serious mental illness.

This introduction outlines key elements in a recent United Kingdom Department of Health report that, it is hoped, will change attitudes, expectations and practices in the care of patients with chronic illness [Department of Health: 2001, The Expert Patient: A New Approach to Chronic Disease Management for the 21st Century. London: Department of Health.]. The findings of the Task Force are summarised as accurately as possible and without comment. Analysis and comment can be found in the accompanying papers.

Nursing on paper: therapeutic letters in nursing practice This paper offers a selected piece of interpretive research extracted from the context of a larger research study. The hermeneutic research inquiry described in this paper involved the examination of the nursing and family therapy intervention of therapeutic letters. It incorporated the textual interpretation of 11 therapeutic letters, clinical sessions with three families, clinical team discussions, and research interviews with four family members and three nurse clinicians who participated in the writing of the letters. This particular paper extracts segments of the research related to the letters received by two participants, as well as some general findings, with a focus on the possibilities and influences of therapeutic letters in nursing practice. The findings of this research offer suggestions, not as a template, but as an inspiration and evocation to write therapeutic letters that address the obligation of meeting people experiencing illness at the point of their suffering, with words and questions that invite relationship, reflection, and are large enough to sustain a meeting.

Introduction: Community-driven research in primary healthcare (PHC) may reduce the chronic disease burden in Indigenous peoples. This systematic review assessed the cultural safety of reports of research on PHC use by Indigenous peoples from four countries with similar colonial histories. Methods: Medline, CINAHL and Embase were all systematically searched from 1st January 2002 to 4th April 2023. Papers were included if they were original studies, published in English and included data (quantitative, qualitative and/or mixed methods) on primary healthcare use for chronic disease (chronic kidney disease, cardiovascular disease and/or diabetes mellitus) by Indigenous Peoples from Western colonial countries. Study screening and data extraction were undertaken independently by two authors, at least one of whom was Indigenous. The baseline characteristics of the papers were analyzed using descriptive statistics. Aspects of cultural safety of the research papers were assessed using two quality appraisal tools: the CONSIDER tool and the CREATE tool (subset analysis). This systematic review was conducted in accordance with the Assessing the Methodological Quality of Systematic Reviews (AMSTAR) tool. Results: We identified 35 papers from Australia, New Zealand, Canada, and the United States. Most papers were quantitative (n = 21) and included data on 42,438 people. Cultural safety across the included papers varied significantly with gaps in adequate reporting of research partnerships, provision of clear collective consent from participants and Indigenous research governance throughout the research process, particularly in dissemination. The majority of the papers (94%, 33/35) stated that research aims emerged from communities or empirical evidence. We also found that 71.4% (25/35) of papers reported of using strengths-based approaches by considering the impacts of colonization on reduced primary healthcare access. Conclusion: Research on Indigenous PHC use should adopt more culturally safe ways of providing care and producing research outputs which are relevant to community needs by privileging Indigenous voices throughout the research process including dissemination. Indigenous stakeholders should participate more formally and explicitly throughout the process to guide research practices, inclusive of Indigenous values and community needs. [ABSTRACT FROM AUTHOR]

Nutrients and other bioactive constituents of foods may interact with each other and the surrounding food matrix in complex ways. Therefore, associations between single nutrients and chronic disease may be difficult to identify and interpret, but when dietary patterns (DPs) are examined the combination of many food factors will be considered. An explorative literature search of published review articles was conducted to obtain a fuller understanding of current DPs in epidemiological research, to discuss pros and cons of DPs in nutrition research, and to identify results of studies linking DPs to chronic disease risk in adults. Randomized feeding trials providing the experimental diets to study participants have repeatedly demonstrated that diets based on current dietary recommendations are associated with important health benefits. Systematic reviews of feeding trials and prospective population studies of DPs and chronic disease risk reach similar conclusions regardless of the methodology used to construct DPs. However, to date only a few review articles of DP studies have followed a systematic process using independent reviewers with strict inclusion, exclusion, and study quality criteria. Diets with plenty of plants foods, fish, and seafood that preferably include vegetable oils and low-fat dairy products are associated with a lower risk of most chronic diseases. In contrast, Western-type DPs with food products low in essential nutrients and high in energy, like sugar-sweetened beverages, sweets, refined cereals and solid fats (e.g. butter), and high in red and processed meats, are associated with adverse health effects. An emphasis on high-quality original research, and systematic reviews following a structured process to objectively select and judge studies, is needed in order to enforce a strong future knowledge base regarding DPs and chronic disease.

Prevalence of chronic diseases and multimorbidity is rising, and it remains unclear what the best strategy is for activating people with chronic conditions in their self-care. We designed a two-group quasi-experimental time series trial to examine the effectiveness of a nurse-led, face-to-face, individually-tailored health coaching (HC) intervention in improving patient activation and secondary outcomes (self-efficacy, quality of life, anxiety and depression symptoms, medication adherence, hospitalization and emergency visits) among primary care users with chronic conditions. A total of 118 people with chronic conditions were recruited through a primary care center and allocated to either the intervention group (IG) (n = 58) or control group (CG) (n = 60). The IG received a nurse-led individually-tailored HC intervention involving 4-6 face-to-face multicomponent sessions covering six core activation topics. The CG received usual primary care. Data were collected at baseline, after the intervention (6 weeks after baseline for controls) and at 6 and 12 months from baseline. Compared with controls, the IG had significantly higher patient activation scores after the intervention (73.29 vs. 66.51, p = .006). However, this improvement was not maintained at follow-up and there were no significant differences in secondary outcomes across the study period. HC may be an effective strategy for achieving short-term improvements in the activation of primary care users with chronic conditions. Further studies with different methodological approaches are needed to elucidate how HC may improve and sustain changes in patient activation., (© 2021 Wiley Periodicals LLC.)

Self-management, or self-care, by individuals and/or families is a critical element in chronic illness management as more care shifts to the home setting. Mobile device-enhanced health care, or mHealth, is being touted as a means to support self-care. Previous mHealth reviews examined the effect of mHealth on patient outcomes, however, none used a theoretical lens to examine the interventions themselves. The aims of this integrative review were to examine recent (e.g., last 10 years) chronic illness mHealth empiric studies and (1) categorize self-care behaviors engaged in the intervention according to the Middle-Range Theory of Self-care of Chronic Illness, and (2) conduct an analysis of gaps in self-care theory domains and behaviors utilized. Methods included: (1) Best practice study identification, collection, and data extraction procedures and (2) realist synthesis techniques for within and across case analysis. From a pool of 652 records, 33 primarily North American clinical trials, published between 2010 and 2019 were examined. Most mHealth interventions used apps, clinician contact, and behavioral prompts with some wireless devices. Examination found self-care maintenance behaviors were supported in most (n = 30) trials whereas self-care monitoring (n = 12) and self-care management behaviors (n = 8) were less so. Few trials (n = 2) targeted all three domains. Investigation of specific behaviors uncovered an overexamination of physical activity and diet behaviors and an underexamination of equally important behaviors. By examining chronic illness mHealth interventions using a theoretical lens we have categorized current interventions, conducted a gap analysis uncovering areas for future study, and made recommendations to move the science forward., (© 2020 Wiley Periodicals LLC.)

Purpose: A deluge of fake news and misinformation about the coronavirus disease 2019 (COVID-19) on the Internet poses challenges for the public in their search for reliable and relevant health information for taking protective measures, especially among people with chronic diseases (PWCD). This study aimed to (a) understand the satisfaction level of the online information related to COVID-19 in people with and without chronic diseases; (b) explore information-searching behavior and digital health literacy in PWCD; and (3) identify the possible predictors of information satisfaction among PWCD., Methods: This was a multicity, cross-sectional study using an online survey with a convenience sample of people who (a) were 15 years of age or older and (b) had access to the Internet in mainland China, Hong Kong, and Macau., Findings: Four thousand four hundred and seventy-two subjects completed the survey, of whom less than 50% felt satisfied with the online information. About 20% of respondents (n = 882) were diagnosed with at least one chronic disease and reported a lower level of information satisfaction (p = .003) than the people without chronic diseases. The majority of the PWCD obtained their online health information from social media. Higher digital health literacy (adjusted odds ratio [OR] = 5.07), higher frequency of searches regarding symptoms of COVID-19 (adjusted OR = 2.07), higher perceived importance of quickly learning from the information searched (adjusted OR = 1.63), and lower frequency of searches on the topic of dealing with psychological stress (adjusted OR = 0.54) were found to be predictors of information satisfaction among PWCD., Conclusions: The majority of PWCD sought online information related to COVID-19 from social media, and their level of information satisfaction was significantly lower than among people without chronic diseases. Digital health literacy is a strong and significant predictor of information satisfaction., Clinical Relevance: To support PWCD, we not only have to provide them with clear and accurate information, but also promote their digital health literacy so that they may seek, understand, and appraise health information from the Internet to make appropriate health-related judgments and decisions., (© 2020 Sigma Theta Tau International.)

Purpose Return to work is a complex and challenging process which takes various forms in different contexts. The aim of this study is to explore and compare cross-country differences in stakeholders' experiences and views on actors, policies and practices relevant for return to work after long-term sickness absence. The comparative exploration is done in six countries with various legislative backgrounds, welfare and social dialogue systems. Methods Using a purposive sample, six multidisciplinary stakeholders group discussions were conducted in six countries: Belgium, Estonia, Ireland, Italy, Romania and Slovakia. A total of 51 individuals comprised of social partners, policymakers or representatives of public bodies and patient associations participated. An interpretative phenomenological analysis was employed to derive the most important themes in the discussions. Results Five major themes emerged from the group discussions. A graphic model is proposed to emphasize the variety of frameworks and processes across countries. Conclusions The core part of the return to work process is the dynamic relation between legislation, stakeholders and practices, which is influenced by broader national and societal factors. The cross-country variation in legislations, stakeholders and practices can be understood as a continuum, from low to high structuring, development and comprehensiveness. Although social dialogue appears to have a role in return to work process with variation across countries, it is not always on top of the agenda of social partners., (© 2022. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)

Exercise is fundamental for good health, whereas physical inactivity underpins many chronic diseases of modern society. It is well appreciated that regular exercise improves metabolism and the metabolic phenotype in a number of tissues. The phenotypic alterations observed in skeletal muscle are partly mediated by transcriptional responses that occur following each individual bout of exercise. This adaptive response increases oxidative capacity and influences the function of myokines and extracellular vesicles that signal to other tissues. Our understanding of the epigenetic and transcriptional mechanisms that mediate the skeletal muscle gene expression response to exercise as well as of their upstream signalling pathways has advanced substantially in the past 10 years. With this knowledge also comes the opportunity to design new therapeutic strategies based on the biology of exercise for a variety of chronic conditions where regular exercise might be a challenge. This Review provides an overview of the beneficial adaptive responses to exercise and details the molecular mechanisms involved. The possibility of designing therapeutic interventions based on these molecular mechanisms is addressed, using relevant examples that have exploited this approach.

Depression is one of the most common comorbidities of many chronic medical diseases including cancer and cardiovascular, metabolic, inflammatory and neurological disorders. Indeed, the prevalence of depression in these patient groups is often substantially higher than in the general population, and depression accounts for a substantial part of the psychosocial burden of these disorders. Many factors can contribute to the occurrence of comorbid depression, such as shared genetic factors, converging biological pathways, social factors, health behaviours and psychological factors. Diagnosis of depression in patients with a medical disorder can be particularly challenging owing to symptomatic overlap. Although pharmacological and psychological treatments can be effective, adjustments may need to be made for patients with a comorbid medical disorder. In addition, symptoms or treatments of medical disorders may interfere with the treatment of depression. Conversely, symptoms of depression may decrease adherence to treatment of both disorders. Thus, comprehensive treatment plans are necessary to optimize care.