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Examples are provided that demonstrate how multi-organoid 'body-on-a-chip' systems may be used to model the interdependent metabolism and downstream effects of drugs across multiple tissues in a single platform. Such 3D in vitro systems represent a more physiologically relevant model for drug screening and will likely reduce the cost and failure rate associated with the approval of new drugs.Background and aims Psoriasis is a common chronic skin condition, causing skin lesions with thickened and scaling skin, as well as erythema and inflammation that may involve painful sores, cracks, and pustules. Previously psoriasis was regarded as a painless skin condition. However, over the past decade studies show that skin pain is a frequently reported and bothersome symptom in patients with psoriasis. There is however a lack of rich narratives describing the experience of skin pain in these patients. The aims of this qualitative study were therefore to explore in depth how patients experience psoriasis-related skin pain, and how they deal with it. Methods Thirteen patients with psoriasis were recruited from a dermatology ward and outpatient clinic. One of the investigators (TML) performed individual, semi-structured interviews at an undisturbed room in the hospital. Interviews were thematically analyzed using the method of Systematic Text Condensation as described by Malterud (2012). Results Three main thon patients' life in terms of physical, emotional, cognitive, and social functions. Patients use a variety of adaptive but most frequently maladaptive coping strategies in order to deal with their skin pain. Implications This study provides new and in-depth knowledge on psoriasis related skin pain. This information is valuable for further work on pain assessment tools and pain management recommendations customized for skin pain experienced by patients with psoriasis.Background and aims The Core Outcome Measures Index (COMI) is a short, self-reported questionnaire for assessing important outcomes in patients with low back pain (LBP). The present study was conducted to explore the responsiveness and longitudinal validity of the Persian COMI (COMI-P) in patients with non-specific chronic LBP. Methods In this prospective cohort study of patients with non-specific chronic LBP receiving physiotherapy, patients completed a booklet containing the COMI-P, Persian Functional Rating Index (FRI-P), and a visual analogue scale (VAS) for pain before and after the end of ten-sessions of physiotherapy. Patients also completed a global rating of change scale (GRCS) at the end of the physiotherapy. Responsiveness was examined by means of internal responsiveness methods [t-test, standard effect size (SES); standardized response mean (SRM), and Guyatt responsiveness index (GRI)] and external responsiveness methods [correlation with external criteria and receiver operating characteristics (Rally important change in individual patients.Background and aims Previous research on pain and cognition has largely focused on non-social cognitive outcomes (e.g. attention, problem solving). This study examines the relationship between pain and stereotyping, which constitutes a fundamental dimension of social cognition. Drawing on dual process theories of cognition, it was hypothesized that higher levels of pain would increase stereotyped judgments based on ethnicity and age. The hypothesis was tested in conjunction with experimentally induced pain (Study 1) and clinical pain (Study 2). Methods In Study 1, experimental pain was induced with the cold pressor method on a between-subjects basis. Participants (n = 151) completed a judgment task that assessed to what extent they relied on stereotypes (ethnic and age) when estimating other people's cognitive performance. In Study 2, 109 participants with clinical, musculoskeletal pain completed the same stereotype judgment task. Correlations between stereotyped judgments and various pain qualities (intensit a stereotyped social group (e.g. ethnic).OBJECTIVE Somatostatin receptor type 5 (SST5) is inconsistently expressed by corticotroph tumors, with higher expression found in corticotropinomas having ubiquitin-specific protease 8 (USP8) mutations. Aims were to study the correlation between characteristics of corticotropinomas and SST5 expression/USP8 mutation status and to describe the response to pasireotide in 5 patients. DESIGN Retrospective cohort study. METHODS Clinico-biochemical, radiological and pathological data of 62 patients, operated for a functioning or silent corticotropinoma between 2013 and 2017, were collected. SST5 expression was measured by immunohistochemistry (clone UMB-4, Abcam, IRS>1 being considered positive) and Sanger sequencing was performed on 50 tumors to screen for USP8 mutations. RESULTS SST5 expression was positive in 26/62 pituitary tumors. A moderate or strong IRS was found in 15/58 corticotropinomas and in 13/35 functioning corticotropinomas. Among functioning tumors, those expressing SST5 were more frequent in women (22/24 vs 9/15, P=0.04) and had a lower grade (P=0.04) compared to others. USP8 mutations were identified in 13/50 pituitary tumors and were more frequent in functioning compared to silent tumors (11/30 vs 2/20, P=0.05). SST5 expression was more frequent in USP8mut vs USP8wt tumors (10/11 vs 7/19, P=0.007). Among treated patients, normal urinary free cortisol levels were obtained in 3 patients (IRS 0, 2, 6) while a 4-fold decrease was observed in one patient (IRS 4). CONCLUSION SST5 expression appears to be associated with functioning, USP8mut and lower grade corticotropinomas. A correlation between SST5 expression or USP8mut and response to pasireotide remains to be confirmed.Polycystic ovary syndrome (PCOS) is the most common ovulatory defect in women. Although most PCOS patients are obese, a subset of PCOS women are lean but show similar risks for adverse fertility outcomes. A lean PCOS mouse model was created using prenatal androgen administration. https://www.selleckchem.com/products/chir-98014.html This developmentally programmed mouse model was used for this study. Our objective was to investigate if mitochondrial structure and functions were compromised in oocytes obtained from lean PCOS mouse. The lean PCOS mouse model was validated by performing glucose tolerance test, HbA1c levels, body weight and estrous cycle analyses. Oocytes were isolated and were used to investigate inner mitochondrial membrane potential, oxidative stress, lipid peroxidation, ATP production, mtDNA copy number, transcript abundance, histology and electron microscopy. Our results demonstrate that lean PCOS mice has similar weight to that of the controls but exhibited glucose intolerance and hyperinsulinemia along with dysregulated estrus cycle. Analysis of their oocytes show impaired inner mitochondrial membrane function, elevated reactive oxygen species (ROS), increased RNA transcript abundance and aberrant ovarian histology.
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