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Aims: Psychosis is a severe mental health condition characterised by a loss of contact with reality, often manifesting in symptoms such as paranoid delusions and hallucinations. Research has shown that the prevalence of psychosis is significantly higher among individuals from ethnic minority backgrounds compared with White Britons in the UK. Additionally, people from these backgrounds tend to experience more discrimination and identity-related challenges than their White counterparts. However, few studies have explored how discrimination and ethnic identity intersect to influence psychosis rates.
This study aims to examine the relationship between discrimination and paranoia in ethnic minority populations, exploring whether ethnic identity may help protect individuals from the negative impact of discrimination on psychosis. It is hypothesised that people from ethnic minority backgrounds will face more discrimination and exhibit more severe symptoms of paranoia compared with White Britons, with the relationship between ethnicity and paranoia being mediated by discrimination. Furthermore, it is predicted that the association between discrimination and paranoia will be moderated by social identity, such that higher social identification will attenuate the positive association between discrimination and paranoia.
Methods: The study involved a secondary analysis of two cross-sectional datasets, including African and African Caribbean participants (N=355) and a student sample (N=1747), using validated measures of paranoia, psychosis symptoms (paranoia, dissociation, and hallucinations), discrimination, and ethnic identity.
Results: A moderated multiple regression indicated that the positive association between discrimination and paranoia was moderated by social identity, such that the effect was weaker and non-significant when people had stronger identities. We further found that discrimination mediated the effect of ethnicity (ethnic majority vs ethnic minority) on paranoia.
Conclusion: Strong social identities buffered ethnic minority people from the negative effects of discrimination on paranoia symptoms. Further, the higher rates of paranoia observed among ethnic minority participants may be explained by their more severe experiences of discrimination.
Waterlogging (WL) stress drastically impacts sesame crops, making them highly susceptible by hindering growth and development. Hence, identifying and characterizing the promising trait is necessary to conserve germplasm exploitation during WL stress conditions. The current study emphasized comprehensively screening 148 accessions by treating 48 hours of WL stress in sesame crops. In addition, the trait association and morphological characteristics were attributed to identify tolerant and susceptible germplasm, which can be further utilized in crop improvement and breeding programmes. Therefore, the present study screened the genotypes by assessing morphological traits, including shoot height (SH), root length (RL), SPAD measurements and branches per plant. The observation reveals that RL, SH and SPAD significantly varied in sesame accessions. Hence, accession EC377024 and IC129289 showed highly tolerant and susceptible behaviour. The statistical analysis, including G × E interactions, Pearson’s correlation, and principal component analysis (PCA), supports the selected trait that can be used to screen the WL susceptible crops. The genotypes identified in this study have the potential to aid in sesame crop improvement.
Co-occurrence of Obsessive compulsive symptoms (OCS)/Obsessive Compulsive disorder (OCD) and psychotic disorders is not uncommon affecting approximately 20% of the patients with psychotic disorders. The clinicians sometimes fail to recognize the comorbidity of these two conditions due to the overlapping symptoms and also due to under reporting by the patients until the symptoms become very severe. Timely recognition and treatment of obsessive symptoms are crucial for improving the outcomes of psychotic episodes. Our review aims to study the role of antipsychotics in causing OCD/OCS in schizophrenia. We also discuss the etiologies, pathophysiology, and treatment of OCD/OCS in schizophrenia.
Methods
A comprehensive literature search was conducted on PubMed and Google Scholar to identify relevant articles published between 2013-2023. The different search terms were “(Antipsychotics)”, “(OCD in schizophrenia)” with connector AND. All review, case control, cohort, cross sectional, observational studies were included for the literature review. Based on the relevance of the topic and removal of duplicates, we chose 61 articles.
Results
The literature review revealed that several mechanisms could explain the temporal links between OCD/OCS and schizophrenia. Genetic factors, such as SLC1A1, BDNF, DLGAP3, and GRIN2B genes, have been studied. Serotonergic dysfunction in the cortical, striatal, and thalamic networks has been proposed by OCD pathogenic theories, supported by the therapeutic effects of SSRIs and CBT. Antipsychotic medications, particularly Clozapine, have been associated with a higher prevalence of OCS/OCD during treatment. Some second-generation antipsychotics, like risperidone and olanzapine, have also been linked to new-onset OCS. Treatment options for OCS/OCD in schizophrenia include SSRIs, atypical antipsychotics like Aripiprazole, Amisulpride, or Lamotrigine, CBT, and ECT.
Conclusion
Several studies have examined the link between the presence of OCS in relation to the use of antipsychotics. Among the APAs, the frequency of OCS/OCD is more in the patients using antipsychotics which have more anti serotonergic properties as compared to the ones having more anti dopaminergic properties. Of the second-generation antipsychotics, Clozapine, Olanzapine and Risperidone are the ones being documented most frequently, with clozapine being the most frequent. A dosage-dependent side effect may also be present based on correlations between OCS severity, dose, serum levels, and treatment duration. Various treatment approaches have been suggested, but further research is needed to determine the most effective strategies for managing OCS/OCD in schizophrenia. Clinicians must be aware of the potential comorbidity of these conditions to provide better care and improve patient outcomes.
Stunting, a manifestation of chronic malnutrition, is widespread in India. This, coupled with biased preferences of parents towards their eldest sons, has led to stunting and underweight among girls that grows sharply with increasing birth order. We study the impact of an environmental water pollutant on child growth outcomes in arsenic contaminated regions of India. Using a large, nationally representative household survey and exploiting variation in soil textures across districts as an instrument for arsenic, we find that arsenic exposure beyond the safe threshold level is negatively associated with height-for-age and weight-for-age. Negative effects are larger for girls who are born at higher birth orders relative to the eldest. This, we argue, suggests that the lack of adequate nutrition and health care during early childhood can make girls more vulnerable to external environmental hazards due to their lower immunity and underdeveloped bodies.
What would the ‘sharing economy’ look like if platform providers optimised for racial and other forms of diversity? This article considers that question. Following the Introduction, Part 2 of this article reviews the widespread nature of race and other forms of discrimination in platform technologies. Part 3 uses core strands of property theory to analyse the ways in which racial privilege translates into property entitlements. Part 4 discusses a range of reforms within property law that can contribute to eliminating the value – and ultimately the fact – of whiteness as a property entitlement in the platform economy.
The aim of this study was to explore the perspectives of older medicinal cannabis consumers and those advising them on older Canadians’ experiences accessing cannabis and information about it, as well as how stigma may influence their experiences. A concurrent triangulation mixed methods design was used. The design was qualitatively driven and involved conducting semi-structured interviews with older adults and advisors and developing a survey for older adults. We used a Qualitative Descriptive approach for the analysis of qualitative data and descriptive statistics for quantitative survey data. Findings demonstrate that many older adults are accessing information about cannabis for medical purposes from retailers, either because they are reticent to talk to their healthcare professionals or were rebuffed when bringing up the subject. We recommend cannabis education be required for healthcare professionals working with older persons and that future research examines their perspectives on medicinal cannabis and older adults.
Chrono-medicine considers circadian biology in disease management, including combined lifestyle and medicine interventions. Exercise and nutritional interventions are well-known for their efficacy in managing type 2 diabetes, and metformin remains a widely used pharmacological agent. However, metformin may reduce exercise capacity and interfere with skeletal muscle adaptations, creating barriers to exercise adherence. Research into optimising the timing of exercise has shown promise, particularly for glycaemic management in people with type 2 diabetes. Aligning exercise timing with circadian rhythms and nutritional intake may maximise benefits. Nutritional timing also plays a crucial role in glycaemic control. Recent research suggests that not only what we eat but when we eat significantly impacts glycaemic control, with strategies like time-restricted feeding (TRF) showing promise in reducing caloric intake, improving glycaemic regulation and enhancing overall metabolic health. These findings suggest that meal timing could be an important adjunct to traditional dietary and exercise approaches in managing diabetes and related metabolic disorders. When taking a holistic view of Diabetes management and the diurnal environment, one must also consider the circadian biology of medicines. Metformin has a circadian profile in plasma, and our recent study suggests that morning exercise combined with pre-breakfast metformin intake reduces glycaemia more effectively than post-breakfast intake. In this review, we aim to explore the integration of circadian biology into type 2 diabetes management by examining the timing of exercise, nutrition and medication. In conclusion, chrono-medicine offers a promising, cost-effective strategy for managing type 2 diabetes. Integrating precision timing of exercise, nutrition and medication into treatment plans requires considering the entire diurnal environment, including lifestyle and occupational factors, to develop comprehensive, evidence-based healthcare strategies.
Casuarina equisetifolia L. commonly called whistling pine is an economically and industrially important tree species with global significance. Although species possess versatile importance worldwide, efforts imparted for selection and designing a robust model of selection index are inadequate. The selection process, based on quantitative and qualitative traits, identified 15 superior trees from the eastern coastal plain of Odisha. These superior trees showcased exceptional qualitative and quantitative attributes. Correlation analysis highlighted key similarities among various traits like volume and above ground biomass (AGB), volume and diameter at breast height (DBH), DBH and AGB, DBH and Tree Height (TH), crown length (CL), height, AGB and height. Principal component analysis emphasized substantial contributions of traits like DBH, height, CL, crown width, AGB and volume across different clusters. Furthermore, culmination resulted in a comprehensive selection index, integrating both qualitative and quantitative characters, reaching 52.04, signifying superior performance among specific accessions. The current study provides valuable insights into selection and designing optimal selection index of C. equisetifolia, guiding future decisions concerning optimal wood production and resource management.
We aimed to assess risk of COVID-19 infection & seroprotection status in healthcare workers (HCWs) in both hospital and community settings following an intensive vaccination drive in India.
Setting:
Tertiary Care Hospital
Methods:
We surveyed COVID-19 exposure risk, personal protective equipment (PPE) compliance, vaccination status, mental health & COVID-19 infection rate across different HCW cadres. Elecsys® test for COVID-19 spike (Anti-SARS-CoV-2S; ACOVs) and nucleocapsid (Anti-SARS-CoV-2; ACOV) responses following vaccination and/or COVID-19 infection were measured in a stratified sample of 386 HCW.
Results:
We enrolled 945 HCWs (60.6% male, age 35.9 ± 9.8 years, 352 nurses, 211 doctors, 248 paramedics & 134 support staff). Hospital PPE compliance was 90.8%. Vaccination coverage was 891/945 (94.3%). ACOVs neutralizing antibody was reactive in 381/386 (98.7%). ACOVs titer (U/ml) was higher in the post-COVID-19 infection group (N =269; 242.1 ± 35.7 U/ml) than in the post-vaccine or never infected subgroup (N = 115, 204.1 ± 81.3 U/ml). RT PCR + COVID-19 infections were documented in 224/945 (23.7%) and 6 HCWs had disease of moderate severity, with no deaths. However, 232/386 (60.1%) of HCWs tested positive for nucleocapsid ACOV antibody, suggesting undocumented or subclinical COVID-19 infection. On multivariate logistic regression, only female gender [aOR 1.79, 95% CI 1.07–3.0, P = .025] and COVID-19 family contact [aOR 5.1, 95% CI 3.84–9.5, P < .001] were predictors of risk of developing COVID-19 infection, independent of association with patient-related exposure.
Conclusion:
Our HCWs were PPE compliant and vaccine motivated, with immunization coverage of 94.3% and seroprotection rate of 98.7%. There was no relationship between HCW COVID-19 infection to exposure characteristics in the hospital. Vaccination reduced disease severity and prevented death in HCW.
Persistence in physician-scientist careers has been suboptimal, particularly among women. There is a gender gap in self-confidence in medicine. We measured the impact of our physician-scientist training programs on trainee’s confidence in professional, personal, and scientific competencies, using a survey measuring self-rated confidence in 36 competencies across two timepoints.
Methods:
Results were analyzed for the full survey and for thematic subscales identified through exploratory factor analysis (EFA). A mixed effects linear model and a difference in differences (DID) design were used to assess the differential impact of the programing by gender and career level.
Results:
Analysis included 100 MD-PhD or MD-only medical student or resident/fellow trainees enrolled between 2020 and 2023. Five subscales were identified through EFA; career sustainability, science productivity, grant management, goal setting, and goal alignment (Cronbach’s alpha 0.85–0.94). Overall, mean scores increased significantly for all five subscales. Women significantly increased their confidence levels in all five areas, whereas men increased only in science productivity and grant management. Mixed effects models showed significant increases over time for women compared to men in career sustainability and goal alignment. Residents and fellows had greater increases than medical students across all subscales.
Conclusion:
Physician-scientist trainees fellows increased their confidence in personal, professional, and scientific skills during training. Training had a greater impact on women than men in building confidence in sustaining careers and aligning their goals with professional and institutional priorities. The magnitude of increased confidence among residents and fellows exceeded that in medical students.
We aimed to evaluate the effect of yoga on motor and non-motor symptoms and cortical excitability in patients with Parkinson’s disease (PD).
Methods:
We prospectively evaluated 17 patients with PD at baseline, after one month of conventional care, and after one month of supervised yoga sessions. The motor and non-motor symptoms were evaluated using the Unified Parkinson’s disease Rating Scale (motor part III), Hoehn and Yahr stage, Montreal Cognitive Assessment, Hamilton depression rating scale, Hamilton anxiety rating scale, non-motor symptoms questionnaire and World Health Organization quality of life questionnaire. Transcranial magnetic stimulation was used to record resting motor threshold, central motor conduction time, ipsilateral silent period (iSP), contralateral silent period (cSP), short interval intracortical inhibition (SICI), and intracortical facilitation.
Results:
The mean age of the patients was 55.5 ± 10.8 years, with a mean duration of illness of 4.0 ± 2.5 years. The postural stability of the patients significantly improved following yoga (0.59 ± 0.5 to 0.18 ± 0.4, p = 0.039). There was a significant reduction in the cSP from baseline (138.07 ± 27.5 ms) to 4 weeks of yoga therapy (116.94 ± 18.2 ms, p = 0.004). In addition, a significant reduction in SICI was observed after four weeks of yoga therapy (0.22 ± 0.10) to (0.46 ± 0.23), p = 0.004).
Conclusion:
Yoga intervention can significantly improve postural stability in patients with PD. A significant reduction of cSP and SICI suggests a reduction in GABAergic neurotransmission following yoga therapy that may underlie the improvement observed in postural stability.
Chronic pain is a debilitating condition with a high burden of disease. Neurostimulation therapy is an established modality for patients with chronic pain refractory to pharmacological based approaches and conservative interventional therapies. The therapy has evolved over the decades, based on improved understanding of the mechanisms of action, as well as technological advancement in device design.
Our objective is to conduct a review of the innovation in neurostimulation therapy for chronic pain, in the context of health technology assessment (HTA), and its implications on policies related to patient access.
Methods
A qualitative literature review was conducted to identify published HTAs, systematic reviews, clinical guidelines and other relevant articles and reports on neurostimulation therapies used in pain management. Searches were limited to the past 10 years to ensure that a contemporary analysis was conducted.
Results
Our review indicates that there has been continuous innovation in neurostimulation therapies for chronic pain. This includes improvements in battery longevity and reduced size, advances in the design of leads, the development of novel stimulation waveforms and personalized programming using sophisticated algorithms including sensing and feedback loops, and remote management to name a few. Clinical research has also enabled an expansion in the range of neural targets and indicated subpopulations. The literature shows that apart from reduction in pain, neurostimulation therapy facilitates improvements in the quality of life, and reduction in opioid dependence, carer burden and disability, which are outcomes important to patients as well as to society at large. Clinical guidelines are largely supportive of neurostimulation for the management of chronic refractory pain in carefully selected patients.
Conclusions
The range and complexity of neurostimulation devices and the variety of study designs presents a challenge for evidence synthesis. HTA bodies need to ensure that the methodologies for evaluating a heterogeneous therapy such as neurostimulation for pain management are robust, and that the policies for determining access to such innovative therapies are patient-centric and fit-for-purpose.
Pharyngocutaneous fistula is one of the most common complications following total laryngectomy. It increases hospital stay and the financial burden on patients, and prolongs nasogastric feeding. This paper presents novel techniques for prevention of pharyngocutaneous fistula.
Method
A retrospective study was conducted at a tertiary referral centre to assess the effectiveness of continuous extramucosal pharyngeal suturing and the hydrogen peroxide leak test in prevention of pharyngocutaneous fistula in 59 patients who had undergone total laryngectomy with or without partial pharyngectomy for locally advanced cancers of the larynx and hypopharynx.
Results
The incidence of pharyngocutaneous fistula in our study was 6.8 per cent, which is considerably lower than the incidence reported in various previous studies.
Conclusion
The continuous extramucosal suturing technique provides watertight closure of the neopharynx and can be recommended as a reliable method for neopharyngeal closure post total laryngectomy to reduce the occurrence of pharyngocutaneous fistula.
From Chaucer to Shakespeare, and Virginia Woolf to Bernadine Evaristo, London as a city has always instigated the literary imagination. By the nineteenth century, it had become not just the capital of the United Kingdom, but also of a sprawling world-wide empire. This also meant that the city became host to a diverse range of stories, storytellers, and writers that have responded to both its physical and imagined dimensions. Taking a cue from Pascale Casanova’sThe World Republic of Letters, but correcting it to account for the impact of empire, this essay tracks the ways in which London emerged as the global centre of literary and aesthetic production and as a universal arbiter of taste in the early decades of the twentieth century, through the decades of decolonization in the middle of the twentieth century, and leading up to the contemporary moment in which its status as a literary capital is subject to new uncertainties that are enmeshed in the political economy of contemporary world literature.The essay focalizes this discussion through two linked tropes—the city’s “exhibitionary complex” and its “circulatory network”.
Deciphering the sub-ice geology in the Wilkes Subglacial Basin region is important for understanding solid earth-ice sheet evolution and for assessing geological ties between East Antarctica and formerly contiguous Australia. We analyse marine sediment samples derived from drill site U1359 of Integrated Oceanic Drilling Program Expedition 318. Our study reports for the first time that the inland sediment source area comprises a complex mafic igneous terrain and a metamorphosed Precambrian subglacial basement. Pyroxene geochemical analyses confirm the presence of tholeiitic to calc-alkaline basalts. The high-grade part of the subglacial terrain contains upper amphibolite to granulite facies rocks that are comparable to Archaean to Palaeoproterozoic rocks exposed in the Terre Adélie Craton and the formerly adjacent Gawler Craton in Australia. Chemical Th-U-total Pb isochron method (CHIME) ages extracted from a subhedral monazite grain associated with the low-grade biotite-muscovite schist rock fragment provide a unimodal age of 799 ± 13 Ma. Rare occurrences of 800 Ma age in the Terre Adélie Craton and/or George V Coast provide evidence for the presence of at least one late Neoproterozoic magmato-metamorphic event in the interior of Wilkes Land. The affinity of the unexposed geological domains of Wilkes Land, East Antarctica, with their Australian counterparts is discussed in the context of the Rodinia supercontinent.
In this article, an angle-independent wideband metamaterial microwave absorber (MMA) for C (4–8 GHz) and X (8–12 GHz) band frequency is presented. The unit cell of the proposed MMA consists of outer and inner structure associated with lumped resistors. The outer structure consists of rectangular split-ring resonator, whereas the inner structure consists of circular split-ring resonator. The structure is made up of three layers, in which top and bottom layers are made up of copper acting as a conducting material. The middle layer is made up of FR-4 acting as a dielectric substrate. The resonating structure at the top is designed in such a way that wideband absorption is achieved in the range from 6.11 to 13.52 GHz. The wideband absorption within the range approaches almost unity having a bandwidth of 7.41 GHz. Three different peaks are considered in the range of interest having maximum absorption of 0.94, 0.94, and 0.99 at frequencies of 6.76, 11.15, and 13.07 GHz, respectively. The structure is analyzed with respect to the effective parameters, i.e., effective permittivity (${\varepsilon _{{\textrm{eff}}}}$) and effective permeability (${\mu _{{\textrm{eff}}}}$), to prove that the structure acts as a metamaterial. Electric field and current distribution are plotted at three different peaks to prove the mechanism of wideband absorption. Normal and oblique incidence are plotted to determine that the structure is behaving as an angle independent. The simulated structure is fabricated on FR-4 substrate and measured inside an anechoic chamber. Finally, to prove the novelty of the work, the proposed structure is compared with the already reported MMA. The proposed MMA finds practical applications in radar cross section reduction, terrestrial communication, keyless entry system, space communication, radar, and baby monitor.
Currently approved treatments for schizophrenia (antipsychotics) have demonstrated effectiveness for treating positive symptoms; however, these agents are largely ineffective in treating other domains. Negative symptoms, including avolition, alogia, blunted affect, and asociality, are difficult to treat, and often persist despite adequate control of positive symptoms. Additionally, some patients experience “predominant” (moderate-to-severe negative symptoms that have greater relative severity than co-occurring positive symptoms) or “prominent” (severity of negative symptoms [moderate-to-severe] without any reference to positive symptoms) negative symptoms. These symptoms are known to have great impact on patient social functioning and quality of life, and are associated with poorer clinical course and outcomes for patients. Here, we examined inpatient healthcare resource utilization in patients with schizophrenia experiencing predominantly negative symptoms (PNS).
Methods
De-identified data were extracted from electronic health records in the NeuroBlu Database across 25 US mental healthcare providers. Positive and negative symptom data were derived from free-text records using natural language processing. PNS was defined as the presence of three or more negative symptoms and three or fewer positive symptoms at first clinical contact following schizophrenia diagnosis. Groups were balanced for baseline demographic and clinical characteristics by minimizing the generalized Mahalanobis distance and compared using chi-square and t-tests. Treatment patterns were visualized using Sankey diagrams.
Results
A total of 4444 patients with schizophrenia were identified and 8% were classified as PNS. A balanced cohort of 720 patients (50% PNS) was generated. Patients with PNS were more likely to be hospitalized in the 12 months following diagnosis (PNS: 76%, non-PNS: 60%, χ2: 22.5, p < 0.001) and were switched to a second-line antipsychotic after a shorter first-line treatment duration. The most frequently prescribed antipsychotics differed between groups (PNS: risperidone, aripiprazole, haloperidol; non-PNS: risperidone, olanzapine, other atypical).
Discussion
This study demonstrates that negative symptoms in schizophrenia may be associated with worse illness course and higher healthcare resource utilization. There remains a need for new treatment options for patients with persistent, prominent, or predominant negative symptoms which specifically improve this historically hard-to-treat and assess symptom domain.
The current sharing economy suffers from system-wide deficiencies even as it produces distinctive benefits and advantages for some participants. The first generation of sharing markets has left us to question: Will there be any workers in the sharing economy? Can we know enough about these technologies to regulate them? Is there any way to avoid the monopolization of assets, information, and wealth? Using convergent, transdisciplinary perspectives, this volume examines the challenge of reengineering a sharing economy that is more equitable, democratic, sustainable, and just. The volume enhances the reader’s capacity for integrating applicable findings and theories in business, law and social science into ethical engineering design and practice. At the same time, the book helps explain how technological innovations in the sharing economy create value for different stakeholders and how they impact society at large. Reengineering the Sharing Economy is also available as Open Access on Cambridge Core.