On the need for a natural philosophy of psychedelics

2021 ◽  
pp. 8-38
Author(s):  
Chris Letheby
Keyword(s):  
Clinical Trials ◽  
Healthy Subjects ◽  
Natural Philosophy ◽  
Epistemic Status ◽  
Psychological Benefits ◽  
Detailed Review ◽  
Beneficial Effects ◽  
Central Focus ◽  
History Of ◽  
Anxiety Depression

‘On the need for a natural philosophy of psychedelics’ provides a brief overview of the history of psychedelics in science and psychiatry, and a detailed review of recent evidence for their therapeutic and transformative efficacy. The chapter reviews clinical trials showing that one or two controlled psychedelic experiences can durably reduce symptoms of anxiety, depression, and addiction, and can cause lasting psychological benefits in healthy subjects. The chapter also reviews evidence that these beneficial effects are mediated by the occurrence of ‘mystical-type’ experiences. This evidence gives rise to the Comforting Delusion Objection that is the central focus of the book. Existing responses involve (i) rejecting philosophical naturalism, or (ii) downplaying the importance of epistemic factors in the evaluation of psychiatric treatments. The chapter raises problems for both approaches, and outlines a new one: to show that the Objection fails even if naturalism is true and the epistemic status of psychedelic therapy is important.

scholarly journals Improvement in physiological and psychological parameters after six months of yoga practice in military men

2012 ◽  
Vol 7 ◽  
pp. 14
Author(s):  
Kliger Kissinger Fernandes Rocha
Keyword(s):  
Healthy Subjects ◽  
Controlled Trial ◽  
Preventive Health Care ◽  
Yoga Practice ◽  
Memory Tests ◽  
Beneficial Effects ◽  
Cognitive Improvement ◽  
Physical Exercises ◽  
Anxiety Depression ◽  
Yoga Practitioners

Mind-body practices such as yoga are believed to have potential beneficial effects on cognition, as well as on emotional control and on improvement of stress tolerance. However, previous studies were mainly performed on eastern experienced practitioners, or in unhealthy subjects undergoing concomitant conventional therapies. In addition, several kinds of physical exercises have also shown to improve several aspects of mental and body health. Further investigation is needed on the effects of yoga practice per se, even as the possible preventive benefits of this practice on healthy subjects. This study investigated the effects of yoga on memory and on psychophysiological parameters related to stress, as well as offering a possible relationship between these measurements. A controlled trial comparing yoga practice and conventional physical exercises was carried out with yoga-naïve healthy military men. Data from memory tests, salivary cortisol levels and stress, anxiety, and depression inventories were assessed before and after six months of yoga practice. There were significant improvements of the performance on the memory tests, which were accompanied by improvements in psychophysiological parameters in the yoga-practitioners. Improvements were detected when yoga practitioners were compared to non-practitioners, as well as when comparisons were conducted between basal and after practice outcomes. The results indicated that yoga can effectively improve memory after six months of regular practice, along with psychophysiological measurements related to anxiety, depression and stress in healthy subjects. Yoga could be an effective treatment of anxiety, depression and stress. Furthermore, an indirect influence of parameters related to emotional state on cognitive improvement promoted by yoga practice can be proposed. Taken together with previous work, the present results point out to an important application of yoga practice in preventive health care and overall improvement in daily life.

Introduction

2021 ◽  
pp. 1-7
Author(s):  
Chris Letheby
Keyword(s):  
Healthy Subjects ◽  
Psychiatric Patients ◽  
Natural World ◽  
Psychological Benefits ◽  
Philosophical Naturalism ◽  
Philosophical View ◽  
Basic Strategy ◽  
Central Focus ◽  
Therapeutic Benefits ◽  
Apparent Conflict

This Introduction outlines the central focus of Philosophy of Psychedelics: the therapeutic use of psychedelics in psychiatry and its apparent conflict with philosophical naturalism. The chapter briefly describes recent findings that controlled psychedelic administration can have lasting psychological benefits for healthy subjects and for psychiatric patients. It then cites evidence that these psychological benefits are mediated by ‘mystical-type’ experiences. For those sympathetic to naturalism, the philosophical view that only the natural world exists, this prompts a concern: do psychedelics cause therapeutic benefits by inducing non-naturalistic beliefs in a cosmic consciousness or divine Reality? This Introduction outlines a plan to answer this ‘Comforting Delusion Objection’ in subsequent chapters. The basic strategy is to argue that, even if naturalism is true, psychedelic therapy is still acceptable because (i) its epistemic risks are smaller than they might appear, and (ii) it also has epistemic benefits that are consistent with naturalism.

Skuteczność i bezpieczeństwo stosowania korzenia Symphytum officinale L. – przegląd danych literaturowych

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Katarzyna Kimel ◽  
Mirosława Krauze-Baranowska
Keyword(s):  
Clinical Trials ◽  
Chemical Composition ◽  
Raw Materials ◽  
Biologically Active ◽  
Herbal Products ◽  
Plant Raw Materials ◽  
Beneficial Effects ◽  
History Of ◽  
Ancient Times ◽  
History Of Use

Comfrey root – Symphyti radix has been present in medicine since ancient times. Nowadays, European Medicine Agency (EMA) restricts its only for external use, in short therapies not exceeding 10 days. The last decade has been characterized by the progress in research on the chemical composition and metabolism of biologically active compounds present in the root and leaves. The result is the presence of herbal medicinal products containing comfrey root extracts with reduced content or free of toxic pyrrolizidine alkaloids on the European market of herbal products. Moreover, the medicinal properties of leaves from another Symphytum species, namely Russian comfrey, are also in the use. The results of clinical trials indicate the beneficial effects of plant raw materials obtained from comfreys in musculoskeletal system disorders – comfrey root and skin inflammations – leaves of Russian comfrey. The paper presents the history of use, chemical composition, therapeutic effect and toxicity of comfrey, as well as characterizes clinical trials on products containing comfrey extracts from root and leaves.

Empiricisms

2020 ◽  
Author(s):  
Barry Allen
Keyword(s):  
John Dewey ◽  
Gilles Deleuze ◽  
William James ◽  
Natural Philosophy ◽  
Modern Science ◽  
Detailed Account ◽  
Chinese Tradition ◽  
Experimental Practice ◽  
European Philosophy ◽  
History Of

Empiricisms reassesses the values of experience and experiment in European philosophy and comparatively. It traces the history of empirical philosophy from its birth in Greek medicine to its emergence as a philosophy of modern science. A richly detailed account in Part I of history’s empiricisms establishes a context in Part II for reconsidering the work of the so-called radical empiricists—William James, Henri Bergson, John Dewey, and Gilles Deleuze, each treated in a dedicated chapter. What is “radical” about their work is to return empiricism from epistemology to the ontology and natural philosophy where it began. Empiricisms also sets empirical philosophy in conversation with Chinese tradition, considering technological, scientific, medical, and alchemical sources, as well as selected Confucian, Daoist, and Mohist classics. The work shows how philosophical reflection on experience and a profound experimental practice coexist in traditional China with no interaction or even awareness of each other. Empiricism is more multi-textured than philosophers tend to assume when we explain it to ourselves and to students. One purpose of Empiricisms is to recover the neglected context. A complementary purpose is to elucidate the value of experience and arrive at some idea of what is living and dead in philosophical empiricism.

scholarly journals Ketogenic diet reduces alcohol withdrawal symptoms in humans and alcohol intake in rodents

2021 ◽  
Vol 7 (15) ◽  
pp. eabf6780
Author(s):  
Corinde E. Wiers ◽  
Leandro F. Vendruscolo ◽  
Jan-Willem van der Veen ◽  
Peter Manza ◽  
Ehsan Shokri-Kojori ◽  
...  
Keyword(s):  
Ketogenic Diet ◽  
Alcohol Withdrawal ◽  
Alcohol Use Disorder ◽  
Alcohol Intake ◽  
Anterior Cingulate ◽  
Dorsal Anterior Cingulate Cortex ◽  
Beneficial Effects ◽  
Alcohol Cues ◽  
History Of ◽  
To Receive

Individuals with alcohol use disorder (AUD) show elevated brain metabolism of acetate at the expense of glucose. We hypothesized that a shift in energy substrates during withdrawal may contribute to withdrawal severity and neurotoxicity in AUD and that a ketogenic diet (KD) may mitigate these effects. We found that inpatients with AUD randomized to receive KD (n = 19) required fewer benzodiazepines during the first week of detoxification, in comparison to those receiving a standard American (SA) diet (n = 14). Over a 3-week treatment, KD compared to SA showed lower “wanting” and increased dorsal anterior cingulate cortex (dACC) reactivity to alcohol cues and altered dACC bioenergetics (i.e., elevated ketones and glutamate and lower neuroinflammatory markers). In a rat model of alcohol dependence, a history of KD reduced alcohol consumption. We provide clinical and preclinical evidence for beneficial effects of KD on managing alcohol withdrawal and on reducing alcohol drinking.

scholarly journals Multicenter point prevalence evaluation of the utilization and safety of drug therapies for COVID-19 at the onset of the pandemic timeline in the United States

2021 ◽  
Author(s):  
Nathaniel J Rhodes ◽  
Atheer Dairem ◽  
William J Moore ◽  
Anooj Shah ◽  
Michael J Postelnick ◽  
...  
Keyword(s):  
Clinical Trials ◽  
Drug Therapy ◽  
Supportive Care ◽  
The United States ◽  
Primary Objective ◽  
Point Prevalence ◽  
Medical Centers ◽  
Academic Medical ◽  
History Of ◽  
Secondary Objective

Abstract Disclaimer In an effort to expedite the publication of articles related to the COVID-19 pandemic, AJHP is posting these manuscripts online as soon as possible after acceptance. Accepted manuscripts have been peer-reviewed and copyedited, but are posted online before technical formatting and author proofing. These manuscripts are not the final version of record and will be replaced with the final article (formatted per AJHP style and proofed by the authors) at a later time. Purpose There are currently no FDA-approved medications for the treatment of coronavirus disease 2019 (COVID-19). At the onset of the pandemic, off-label medication use was supported by limited or no clinical data. We sought to characterize experimental COVID-19 therapies and identify safety signals during this period. Methods We conducted a non-interventional, multicenter, point prevalence study of patients hospitalized with suspected/confirmed COVID-19. Clinical and treatment characteristics within a 24-hour window were evaluated in a random sample of up to 30 patients per site. The primary objective was to describe COVID-19–targeted therapies. The secondary objective was to describe adverse drug reactions (ADRs). Results A total of 352 patients treated for COVID-19 at 15 US hospitals From April 18 to May 8, 2020, were included in the study. Most patients were treated at academic medical centers (53.4%) or community hospitals (42.6%). Sixty-seven patients (19%) were receiving drug therapy in addition to supportive care. Drug therapies used included hydroxychloroquine (69%), remdesivir (10%), and interleukin-6 antagonists (9%). Five patients (7.5%) were receiving combination therapy. The rate of use of COVID-19–directed drug therapy was higher in patients with vs patients without a history of asthma (14.9% vs 7%, P = 0.037) and in patients enrolled in clinical trials (26.9% vs 3.2%, P < 0.001). Among those receiving drug therapy, 8 patients (12%) experienced an ADR, and ADRs were recognized at a higher rate in patients enrolled in clinical trials (62.5% vs 22%; odds ratio, 5.9; P = 0.028). Conclusion While we observed high rates of supportive care for patients with COVID-19, we also found that ADRs were common among patients receiving drug therapy, including those enrolled in clinical trials. Comprehensive systems are needed to identify and mitigate ADRs associated with experimental COVID-19 treatments.

Immunological variability associated with experimentally-induced positive and negative affective states

1992 ◽  
Vol 22 (1) ◽  
pp. 231-238 ◽  
Author(s):  
Ann D. Futterman ◽  
Margaret E. Kemeny ◽  
David Shapiro ◽  
William Polonsky ◽  
John L. Fahey
Keyword(s):  
Healthy Subjects ◽  
Affective States ◽  
Short Term ◽  
Immunological Parameters ◽  
Neutral State ◽  
Negative Affective States ◽  
Anxiety Depression ◽  
Experimentally Induced

SYNOPSISFunctional and phenotypic immunological parameters were examined immediately before, after, and 30 minutes after experimentally-induced short-term positive (happiness) and negative (anxiety, depression) affective states and a neutral state, in five healthy subjects. Results indicated that all affective states induced more immune fluctuations (regardless of the direction) than the neutral state. Furthermore, among the affective states, anxiety induced the most immunological variability and depression the least.

scholarly journals The Effects of Medicinal Plants and Bioactive Natural Compounds on Homocysteine

Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3081
Author(s):  
Mohammad Amin Atazadegan ◽  
Mohammad Bagherniya ◽  
Gholamreza Askari ◽  
Aida Tasbandi ◽  
Amirhossein Sahebkar
Keyword(s):  
Clinical Trials ◽  
Medicinal Plants ◽  
Vascular Endothelium ◽  
Animal Studies ◽  
Natural Compounds ◽  
Herbal Products ◽  
Mortality And Morbidity ◽  
Beneficial Effects ◽  
Serum Homocysteine ◽  
Prevention And Treatment

Background: Among non-communicable diseases, cardiovascular diseases (CVDs) are the leading cause of mortality and morbidity in global communities. By 2030, CVD-related deaths are projected to reach a global rise of 25 million. Obesity, smoking, alcohol, hyperlipidemia, hypertension, and hyperhomocysteinemia are several known risk factors for CVDs. Elevated homocysteine is tightly related to CVDs through multiple mechanisms, including inflammation of the vascular endothelium. The strategies for appropriate management of CVDs are constantly evolving; medicinal plants have received remarkable attention in recent researches, since these natural products have promising effects on the prevention and treatment of various chronic diseases. The effects of nutraceuticals and herbal products on CVD/dyslipidemia have been previously studied. However, to our knowledge, the association between herbal bioactive compounds and homocysteine has not been reviewed in details. Thus, the main objective of this study is to review the efficacy of bioactive natural compounds on homocysteine levels according to clinical trials and animal studies. Results: Based on animal studies, black and green tea, cinnamon, resveratrol, curcumin, garlic extract, ginger, and soy significantly reduced the homocysteine levels. According to the clinical trials, curcumin and resveratrol showed favorable effects on serum homocysteine. In conclusion, this review highlighted the beneficial effects of medicinal plants as natural, inexpensive, and accessible agents on homocysteine levels based on animal studies. Nevertheless, the results of the clinical trials were not uniform, suggesting that more well-designed trials are warranted.

scholarly journals Subjective cognitive complaints at age 70: associations with amyloid and mental health

2021 ◽  
pp. jnnp-2020-325620
Author(s):  
Ivanna M. Pavisic ◽  
Kirsty Lu ◽  
Sarah E. Keuss ◽  
Sarah-Naomi James ◽  
Christopher A. Lane ◽  
...  
Keyword(s):  
Family History ◽  
Trait Anxiety ◽  
Population Based ◽  
Cross Sectional Study ◽  
Subjective Cognitive Decline ◽  
Cross Sectional ◽  
Amyloid Pathology ◽  
History Of ◽  
Β Amyloid ◽  
Anxiety Depression

ObjectiveTo investigate subjective cognitive decline (SCD) in relation to β-amyloid pathology and to test for associations with anxiety, depression, objective cognition and family history of dementia in the Insight 46 study.MethodsCognitively unimpaired ~70-year-old participants, all born in the same week in 1946 (n=460, 49% female, 18% amyloid-positive), underwent assessments including the SCD-Questionnaire (MyCog). MyCog scores were evaluated with respect to 18F-Florbetapir-PET amyloid status (positive/negative). Associations with anxiety, depression, objective cognition (measured by the Preclinical Alzheimer Cognitive Composite, PACC) and family history of dementia were also investigated. The informant’s perspective on SCD was evaluated in relation to MyCog score.ResultsAnxiety (mean (SD) trait anxiety score: 4.4 (3.9)) was associated with higher MyCog scores, especially in women. MyCog scores were higher in amyloid-positive compared with amyloid-negative individuals (adjusted means (95% CIs): 5.3 (4.4 to 6.1) vs 4.3 (3.9 to 4.7), p=0.044), after accounting for differences in anxiety. PACC (mean (SD) −0.05 (0.68)) and family history of dementia (prevalence: 23.9%) were not independently associated with MyCog scores. The informant’s perception of SCD was generally in accordance with that of the participant.ConclusionsThis cross-sectional study demonstrates that symptoms of SCD are associated with both β-amyloid pathology, and more consistently, trait anxiety in a population-based cohort of older adults, at an age when those who are destined to develop dementia are still likely to be some years away from symptoms. This highlights the necessity of considering anxiety symptoms when assessing Alzheimer’s disease pathology and SCD.

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