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Normal reference values for body composition and physical performance measures are needed in order to determine cut-off values for suboptimal health such as obesity and related cardiometabolic diseases, and/or sarcopenia. Few studies have provided comparative normative reference ranges across different populations. We compare several body composition and physical performance measures between older Hong Kong Chinese and Canadians to derive and contrast their respective reference values.
17451 older adults from the Canadian Longitudinal Study on Aging (CLSA) and 4000 from the Hong Kong Mr. and Ms. Osteoporosis (Os) cohort aged 65 years and over were included to derive reference values for walking speed, grip strength, 5-times chair stand test (CST), percentage body fat (PBF), weight, body mass index (BMI), waist-hip ratio (WHR), and Conicity Index (C-index), stratified by age and sex.
Overall normal reference values for Hong Kong males were higher compared with Canadians, particularly in younger age groups. The observations were reversed for females. Not surprisingly, Canadians have higher body weight and body mass index compared with Hong Kong older adults. Older Canadian males also have a higher percentage body fat and waist-hip ratio, compared with Hong Kong Older males. When fat distribution was compared, Hong Kong Chinese females have higher conicity index- indicating greater central fat distribution compared with Canadian females.
Normative reference values are best derived in the context of ethnicity and geographic regions, when used in relation to health assessments requiring physical performance measures and body composition.
Edited by
Katherine Warburton, California Department of State Hospitals, University of California, Davis, USA,Stephen M. Stahl, University of California, Riverside, USA
Throughout its two and a half centuries in existence, US mental health policy has repeatedly failed people living with schizophrenia. The failures are cyclical—the inhumane conditions uncovered in the first 75 years of existence were addressed with the construction of state asylums to deliver moral treatment. One hundred years later, the asylums were themselves revealed to be inhumane. Deinstitutionalization, the response to the failure of asylums starting in the 1960s, now drives outcomes such as homelessness, incarceration, and early death for people living with psychotic illnesses. In all cases, well-intentioned policy reform has failed at the level of implementation, largely due to a lack of accountability. The result has been a consistent failureto adequately treat people living with schizophrenia, which is now understood to be a highly treatable condition. As the country passes into a quarter millennium in existence, reform is once again underway. Unlike other points in history, there is good news. Other countries, such as Italy, have successfully leveraged reform to achieve greatly improved outcomes. Understanding US history and the successful implementation of policy change in other countries is imperative and teaches us that accountability in implementation is necessary to break the cycle of policy failure.
Edited by
Katherine Warburton, California Department of State Hospitals, University of California, Davis, USA,Stephen M. Stahl, University of California, Riverside, USA
This article presents a comprehensive neuroethical framework that seeks to deepen our understanding of human consciousness and free will, particularly in the context of psychiatric and neurological disorders. By integrating insights from neuroscience with philosophical reflections on freedom and personal identity, the paper examines how various states of consciousness from interoception to self-awareness influence an individual’s autonomy and decision-making capabilities. The discussion utilizes a multidimensional, bottom-up approach to explore how neurobiological processes underlie different levels of conscious experience and their corresponding types of freedom, such as “intero-freedom” related to internal bodily states and “self-freedom” associated with higher self-awareness. This stratification reveals the profound impact of neurological conditions on patients’ freedom of choice and the ethical implications therein. The insights gained from this analysis aim to inform more tailored and effective treatments for psychiatric patients, emphasizing the restoration of autonomy and respect for their inherent dignity. This work underscores the essential unity of the human person through the lens of neuroethics, advocating for healthcare policies that recognize and enhance the personal freedom of those with mental health challenges.
Parasitic arthropods often depend on symbiotic microbes to supplement their narrow diets. Facultative parasites exhibit variation in their parasitic activity and diet, and thus, might be expected to have greater variation in their microbial communities. Further, individuals that engage in more parasitic activity may have different microbial communities from those less parasitic within the same population, but this remains unexplored. Here, we compared the microbial communities of individuals exhibiting parasitic (n = 30) and nonparasitic (n = 29) tendencies from two populations (one originating from Tampa, FL and the other Gainesville, FL) of facultatively ectoparasitic mites (Macrocheles muscaedomesticae). Microbial alpha diversity was similar across mites, regardless of parasitic activity or population. Using ANOSIM, we found that our dataset clustered into four groups. The composition of microbial communities of non-parasitic M. muscaedomesticae mites originating from Tampa and Gainesville was distinct from each other, whereas the parasitic mites had a much greater degree of overlap. We hypothesize that the association of parasitic individuals with fly hosts drove the observed overlap in their microbial communities.
Edited by
Katherine Warburton, California Department of State Hospitals, University of California, Davis, USA,Stephen M. Stahl, University of California, Riverside, USA
Assisted Outpatient Treatment (AOT) is a controversial civil court program wherein a judgeorders a person with severe mental illness to adhere to an outpatient treatment plan designed to improve treatment adherence, prevent relapse and dangerous deterioration. Several states, including California and New York, have recently promoted use of AOT to try to address high rates of homelessness among person with severe mental illness. Under AOT, clinicians treating these patients must balance the ethical principles of patient autonomy and beneficence, andemploy AOT only when previous treatment failed as a result of treatment non-adherence. However, some critics of AOT argue that not only is it coercive and ineffective but that the court mandate to adhere to prescribed medications, usually antipsychotic medications, compels AOT recipients to take ineffective and even harmful medications. This article examines the assertion of these critics and reviews the evidence of antipsychotic effectiveness and potential harms in treating psychotic disorders under a civil court order.
Edited by
Katherine Warburton, California Department of State Hospitals, University of California, Davis, USA,Stephen M. Stahl, University of California, Riverside, USA
This article reviews the development of mental health and psychiatric services in Australia for the international reader. The development of relevant legislation, health-care systems, and the effectiveness of treatment for people with schizophrenia is reviewed. Gaps in service delivery and future directions are considered.
Cardiac CT angiography has seen a steady increase in use for the evaluation of CHD in children. While its primary role is to assess cardiovascular structures, CT angiography also captures extracardiac regions, often revealing previously unsuspected abnormalities. This study sought to determine the prevalence, classification, and clinical relevance of extracardiac abnormalities detected in paediatric patients undergoing CT angiography for CHD evaluation.
Materials and Methods:
A retrospective review was conducted on CT angiography examinations from 1336 patients, aged from newborn to 17 years, at a single tertiary care institution. Extracardiac findings within the thoracic and abdominal regions were systematically identified, categorised, and analysed statistically.
Results:
Extracardiac abnormalities were common, predominantly affecting the respiratory system, including pneumonia (14.5%), atelectasis (13.3%), and pulmonary oedema (11.5%). Airway changes included bronchial malposition (23.3%) and peribronchial thickening (8.3%). Abdominal anomalies were also detected, the most common being hepatomegaly (13.1%), splenomegaly (6.9%), and horseshoe kidney (5.7%). Several of these findings were clinically important and had the potential to affect patient management.
Discussion:
Extracardiac anomalies are a common finding in paediatric CT angiography performed for CHD evaluation and can have significant clinical consequences. Radiologists and clinicians should follow a systematic approach that evaluates both cardiovascular and extracardiac structures to improve diagnostic accuracy and optimise patient care. In addition to common thoracic and abdominal abnormalities, CT angiography enabled the identification of rare and complex extracardiac anatomical patterns, underscoring its value as a comprehensive imaging modality in paediatric CHD.
Bias in scientists themselves is discussed – is it in our DNA? I argue that it is; it had survival value early in our hominin history but is now a negative force. These cognitive biases must be acknowledged, understood in the context of our professional lives, and mitigated. Bias also operates within research teams, as groupthink, and this too must be managed. Confirmation bias is a dominant force but are we “lumpers or splitters.” How are data grouped or categorized, and how does “framing” influence our response to data, a total of 35 cognitive biases are described. Scientific fraud is rare and an entirely different problem but the impulse for it may share some of the same psychological roots.
Edited by
Katherine Warburton, California Department of State Hospitals, University of California, Davis, USA,Stephen M. Stahl, University of California, Riverside, USA
This chapter delves into the ethical dimensions of treating individuals with schizophrenia, emphasizing the need for a new perspective that integrates neuroethics into interventions. The author proposes a bio-systemic model to understand how schizophrenia impacts different levels of consciousness and freedom, highlighting the necessity for tailored interventions that restore autonomy rather than coercive measures. The chapter calls for a shift in policy towards early and assertive treatment, focusing on rebuilding autonomy and dignity for individuals with schizophrenia. Ultimately, the chapter serves as a call to action for a neuroethically informed approach to care that prioritizes the restoration of freedom and dignity for those affected by schizophrenia.
Edited by
Katherine Warburton, California Department of State Hospitals, University of California, Davis, USA,Stephen M. Stahl, University of California, Riverside, USA
The perspective article explores systemic issues in psychiatric care, particularly the barriers to timely treatment and the ethical dilemmas involved in involuntary interventions. It further examines the impact of anosognosia—lack of disease insight—on treatment, noting the difficulties in managing care for those unaware of their illness, and scrutinizes training materials from international organizations that might mislabel necessary psychiatric practices as human rights violations, thereby complicating the care landscape. The discussion extends to the legal and societal implications of psychiatric interventions, using Massachusetts’ Rogers Guardianship as a case study to highlight the consequences of legalistic approaches to mental health treatment. The article calls for destigmatizing psychiatric treatment and integrating robust, evidence-based practices to improve patient outcomes and healthcare equity. The global mental health policy landscape is urged to recognize the critical role of psychiatric care in restoring health and dignityto individuals with serious mental illnesses, advocating for a more nuanced understanding and application of human rights in mental health.
Edited by
Katherine Warburton, California Department of State Hospitals, University of California, Davis, USA,Stephen M. Stahl, University of California, Riverside, USA
This article provides an overview of individuals with schizophrenia who become unhoused and explores current approaches to managing this severe illness in those who often do not want care or believe they need it. Individuals with schizophrenia and who are unhoused face numerous adverse consequences including premature mortality and increased rates of suicide. There is a dearth of research evidence demonstrating efficacy of the Housing First (HF) model and harm reduction approach in decreasing psychotic symptoms in individuals with schizophrenia. Ensuring medication adherence in individuals with psychosis, both housed and unhoused, is important to prevent delays in untreated psychosis and chronic deterioration.
The “play of chance” is described and sources of bias in how data are prepared for analysis (grouping and categorization) is a common source of bias. Multiple comparison bias is another frequently observed bias but problems with a companion bias – subgroup analysis – are less well known. Statistical analysis depends on having independent observations, or some method of accounting for dependency, and this too is a commonplace error and source of bias; it especially threatens meta-analyses. Bias is introduced when the wrong statistical unit is analyzed because “clustering” in the data has been ignored, reducing independency.
Edited by
Katherine Warburton, California Department of State Hospitals, University of California, Davis, USA,Stephen M. Stahl, University of California, Riverside, USA
This article, titled “A Unified Understanding of the Human Mind - A Neuroethical Perspective,”examines the evolution of the concept of the human mind in Western thought and its integration with neuroscience, psychology, psychiatry, and relational dimensions. The author explores how the understanding of the mind has changed over time, influenced by shifts in philosophical paradigms, scientific advancements, and societal perspectives. The article traces the historical development of the mind’s concept, starting from ancient Greece, through influential thinkers like Plato and René Descartes, and progressing to contemporary perspectives. It highlights various philosophical and scientific approaches, including structuralism, functionalism, empiricism, and associationism, which have shaped our understanding of the mind. The article also delves into contemporary integration, where advancements in neuroimaging and the rise of holistic approaches offer a more nuanced understanding of the human mind. The author emphasizes the importance of the relational dimension and the interconnectedness of mental processes, the brain, and the external environment. This integrated perspective can benefit psychiatric treatment and psychological assessments by fostering a holistic approach to mental health. In conclusion, the article advocates for a multidimensional perspective that bridges subjective and objective aspects of human experience, offering promise for theoretical knowledge and practical applications in psychology, psychiatry, and neuroscience.
1. Delirium is an acute-onset disruption in attention and cognition and is very common in patients with advanced malignancy. It can present as hypoactive, hyperactive, or mixed delirium.
2. Episodes of delirium in malignancy are associated with increased length of hospitalization, healthcare cost, and mortality.
3. Rapid identification of delirium and treatment of potential reversible causes is the mainstay of treatment, and there should be emphasis on non-pharmacological interventions for management.
4. There is no specific recommended workup of delirium, therefore lab and imaging studies should be ordered based on the patient’s clinical presentation and risk factors.
5. Physical restraints and psychotropic medications such as antipsychotics and benzodiazepines should be avoided when able as they are associated with worse outcomes, particularly in older patients.
1. An initial assessment and stabilization of airway patency, breathing, and circulation should be performed. Once clinical stability is achieved, urgent neuroimaging should be obtained for rapid and accurate diagnosis of intracranial hemorrhage (ICH).
2. Complete a standardized neurologic assessment to determine baseline severity. The National Institutes of Health Stroke Scale (NIHSS), if the patient is awake or drowsy, or the Glasgow Coma Scale (GCS), if the patient is obtunded or comatose, should be performed and clearly documented.
3. Blood pressure management, treatment of thrombocytopenia (platelet goal of 100,000/mm3), reversal of coagulopathy, and evaluation of the need for early surgical intervention are the mainstays of ICH treatment.
4. Frequent neurological examinations, at least every hour, to detect early clinical deterioration and signs of increased intracranial pressure (ICP) should be part of the initial management algorithm.
5. A complaint of pain in cancer patients with thrombocytopenia may indicate life threatening bleeding. A complaint of headache in a cancer patient with thrombocytopenia, even without abnormal neurologic findings, is ICH until proven otherwise.