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Psychotic disorders are more prevalent among minority ethnic groups in the UK. However, there is no research on how the British Sikh community understands and seeks help for psychosis. The way in which a community understands the nature, causes and treatment of psychosis can impact their duration of untreated psychosis, treatment pathways, experience and engagement with mental health services, and outcomes.
To explore the lay understandings of psychosis and associated help-seeking within the Sikh community in England, and how family, religion and culture influence these perspectives
An exploratory qualitative design, consisting of online semistructured interviews across the UK.
30 participants, 11 men and 19 women, ages ranged from 19 to 69, who identified as Sikh.
Thematic analysis revealed several common themes, including a lack of awareness and knowledge of psychosis, variety of causal beliefs held about psychosis, professional help-seeking being encouraged, religious practices regarded as helpful coping mechanisms, supernatural beliefs influencing alternative help-seeking, strong negative perceptions towards psychosis and general mental illness, the significant role of family and community, and conflicting religious and cultural beliefs.
Participants showed limited understanding of psychosis and mental illnesses, accompanied by widespread negative perceptions, potentially delaying help-seeking. Increasing awareness may prompt earlier help-seeking, enhancing outcomes and diminishing stigma.
Leishmania spp. are intracellular protozoan parasites responsible for leishmaniasis, a globally prevalent vector-borne disease transmitted by phlebotomine sandflies. Within vertebrate hosts, the parasites preferentially infect macrophages and dendritic cells, leading to cell lysis and the formation of disfiguring lesions. Current treatment regimens are hampered by high toxicity, prolonged administration protocols, and severe side effects, underscoring the need for safer and more effective therapeutic alternatives. Mesenchymal stem cells (MSCs), multipotent non-haematopoietic progenitors with fibroblast-like characteristics, possess self-renewal capacity and the ability to differentiate into various functional cell types. Their intrinsic immunomodulatory and antimicrobial properties have positioned MSCs as promising candidates for combating infectious diseases, including leishmaniasis. This review systematically synthesises experimental evidence on the effects of MSCs on Leishmania parasites and the associated lesions, investigates the potential healing mechanisms of MSCs in the context of Leishmania infection, and outlines future research directions in this evolving field. A comprehensive literature search—spanning Scopus, PubMed, Web of Science, and Google Scholar up to 31 May 2024—identified 11 relevant studies: eight from Iran, two from Brazil, and one from Turkey. While Brazilian investigations utilised L. amazonensis, the others focused primarily on L. major, a leading cause of cutaneous leishmaniasis (CL). Across these studies, MSC-based therapy has shown immunomodulatory and antiparasitic effects, influenced by factors such as cell dosage, timing, route of administration, and the parasite burden. Despite promising findings, variability in experimental designs and outcomes highlights the early and exploratory stage of MSC application in CL therapy. Rigorous and standardised research is urgently needed to validate the therapeutic potential of MSCs and to support their clinical translation for leishmaniasis treatment.
The primary objective of this study was to develop a carboxymethyl cellulose (CMC) and carboxymethyl chitosan (CMCS) hydrogel containing ethylene diamine tetra acetic acid (EDTA) as the materials for wound healing. CMC and CMCS solutions were prepared with a concentration of 4% (w/v). These solutions were made using normal saline serum with a concentration of 0.5% (v/v). Additionally, EDTA with the concentrations of 0.01%, 0.05%, 0.1%, 0.5%, 1%, and 2% (w/v) was included in the prepared polymer solution. The analysis of the hydrogels revealed that they possess porous structures with interconnected pores, with average in size 88.71 ± 5.93 μm. The hydrogels exhibited a swelling capacity of up to 60% of their initial weight within 24 h, as indicated by the weight loss and swelling measurements. The antibacterial experiments showed that the formulated CMC/CMCS/EDTA 0.5% hydrogel inhibited the growth of Staphylococcus aureus and Pseudomonas aeruginosa. Moreover, the produced hydrogels were haemocompatible and biocompatible. At the last stage, the evaluation of wound healing in the animal model demonstrated that the use of the produced hydrogels significantly improved the process of wound healing. Finally, the findings substantiated the effectiveness of the formulated hydrogels as the materials for promoting wound healing and antibacterial agents.
Platelet-rich fibrin (PRF), which is the rich source of growth factors, has been used as an efficient scaffold in tissue engineering and wound healing. In this study, tannic acid as a green cross-linker with different concentrations (0.5%, 1%, 5% and 10%) was used to improve the properties of PRF. The cross-linked gel scaffolds were evaluated by analyses such as scanning electron microscopy, Fourier transform infrared spectroscopy, swelling and degradation, mechanical strength, cell toxicity, cell adhesion and antibacterial test. The results showed that the scaffold structure changes by increasing cross-linker concentration. The swelling rate decreased from 49% to 5% for the samples without the cross-linker and with tannic acid (10%), respectively. The degradation percentage for the cross-linked samples was 8%, which showed a lower degradation rate than the non-cross-linked samples (63%). The mechanical strength of the scaffold with the cross-linker increased up to three times (Young's modulus for the non-cross linked and the cross-linked samples: 0.01 and 0.6 MPa, respectively). Cytotoxicity was not observed up to 10% cross-linker concentration. The cells proliferated well on the cross-linked scaffolds and also showed a good antibacterial effect. In general, tannic acid can improve the physical and mechanical properties of PRF without negatively affecting its biological properties.
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