{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,19]],"date-time":"2026-08-19T17:42:03Z","timestamp":1787161323387,"version":"build-2736575974"},"reference-count":54,"publisher":"MDPI AG","issue":"17","license":[{"start":{"date-parts":[[2022,8,30]],"date-time":"2022-08-30T00:00:00Z","timestamp":1661817600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Charit\u00e9 University Funding UFF","award":["89\/441-176"],"award-info":[{"award-number":["89\/441-176"]}]},{"name":"Open Access Publication Fund of Charit\u00e9\u2014Universit\u00e4tsmedizin Berlin","award":["89\/441-176"],"award-info":[{"award-number":["89\/441-176"]}]},{"name":"German Research Foundation (DFG)","award":["89\/441-176"],"award-info":[{"award-number":["89\/441-176"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>Spexin (SPX) is a novel, widely expressed peptide, with anorexigenic effects demonstrated in animal models and negatively correlated with body mass index (BMI) in humans. It increases locomotor activity in rodents and is elevated in human plasma following exercise. Studies have also shown an effect of stress and anxiety on SPX\u2019s expression in different brain structures in animals. The relationships between plasma SPX and physical activity, body composition, and patient-reported outcomes such as perceived stress, depressiveness, anxiety, and eating behaviors are unknown and were examined in this study over a wide BMI range. A total of 219 female (n = 68 with anorexia nervosa; n = 79 with obesity; n = 72 with normal weight) inpatients were enrolled. Perceived stress (PSQ 20), anxiety (GAD 7), depressiveness (PHQ 9), and eating disorder pathology (EDI 2), as well as BMI, bioimpedance analysis, and accelerometry, were measured cross-sectionally at the beginning of treatment and correlated with plasma SPX levels (measured by ELISA) obtained at the same time. Plasma SPX levels were negatively associated with BMI (r = \u22120.149, p = 0.027) and body fat mass (r = \u22120.149, p = 0.04), but did not correlate with perceived stress, anxiety, depressiveness, eating behavior, energy expenditure, and physical activity (p &gt; 0.05). The results replicate the negative correlation of SPX with BMI and fat mass, but do not support the hypothesis that peripheral SPX plays a role in the regulation of stress, depressiveness, anxiety, eating behavior, or physical activity.<\/jats:p>","DOI":"10.3390\/jcm11175107","type":"journal-article","created":{"date-parts":[[2022,8,31]],"date-time":"2022-08-31T00:13:56Z","timestamp":1661904836000},"page":"5107","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Circulating Spexin Is Associated with Body Mass Index and Fat Mass but Not with Physical Activity and Psychological Parameters in Women across a Broad Body Weight Spectrum"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9358-3521","authenticated-orcid":false,"given":"Maria","family":"Suhs","sequence":"first","affiliation":[{"name":"Charit\u00e9 Center for Internal Medicine and Dermatology, Department of Psychosomatic Medicine, Charit\u00e9\u2013Universit\u00e4tsmedizin Berlin, Corporate Member of Freie Universit\u00e4t Berlin and Humboldt-Universit\u00e4t zu Berlin, 12203 Berlin, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andreas","family":"Stengel","sequence":"additional","affiliation":[{"name":"Charit\u00e9 Center for Internal Medicine and Dermatology, Department of Psychosomatic Medicine, Charit\u00e9\u2013Universit\u00e4tsmedizin Berlin, Corporate Member of Freie Universit\u00e4t Berlin and Humboldt-Universit\u00e4t zu Berlin, 12203 Berlin, Germany"},{"name":"Department of Psychosomatic Medicine and Psychotherapy, University Hospital T\u00fcbingen, 72076 T\u00fcbingen, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6178-0870","authenticated-orcid":false,"given":"Amelie","family":"Rudolph","sequence":"additional","affiliation":[{"name":"Charit\u00e9 Center for Internal Medicine and Dermatology, Department of Psychosomatic Medicine, Charit\u00e9\u2013Universit\u00e4tsmedizin Berlin, Corporate Member of Freie Universit\u00e4t Berlin and Humboldt-Universit\u00e4t zu Berlin, 12203 Berlin, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Selina","family":"Schaper","sequence":"additional","affiliation":[{"name":"Charit\u00e9 Center for Internal Medicine and Dermatology, Department of Psychosomatic Medicine, Charit\u00e9\u2013Universit\u00e4tsmedizin Berlin, Corporate Member of Freie Universit\u00e4t Berlin and Humboldt-Universit\u00e4t zu Berlin, 12203 Berlin, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ellen","family":"W\u00f6lk","sequence":"additional","affiliation":[{"name":"Charit\u00e9 Center for Internal Medicine and Dermatology, Department of Psychosomatic Medicine, Charit\u00e9\u2013Universit\u00e4tsmedizin Berlin, Corporate Member of Freie Universit\u00e4t Berlin and Humboldt-Universit\u00e4t zu Berlin, 12203 Berlin, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Peter","family":"Kobelt","sequence":"additional","affiliation":[{"name":"Charit\u00e9 Center for Internal Medicine and Dermatology, Department of Psychosomatic Medicine, Charit\u00e9\u2013Universit\u00e4tsmedizin Berlin, Corporate Member of Freie Universit\u00e4t Berlin and Humboldt-Universit\u00e4t zu Berlin, 12203 Berlin, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Matthias","family":"Rose","sequence":"additional","affiliation":[{"name":"Charit\u00e9 Center for Internal Medicine and Dermatology, Department of Psychosomatic Medicine, Charit\u00e9\u2013Universit\u00e4tsmedizin Berlin, Corporate Member of Freie Universit\u00e4t Berlin and Humboldt-Universit\u00e4t zu Berlin, 12203 Berlin, Germany"},{"name":"Quantitative Health Sciences, Outcomes Measurement Science, University of Massachusetts Medical School, Worcester, MA 01655, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4002-3552","authenticated-orcid":false,"given":"Tobias","family":"Hofmann","sequence":"additional","affiliation":[{"name":"Charit\u00e9 Center for Internal Medicine and Dermatology, Department of Psychosomatic Medicine, Charit\u00e9\u2013Universit\u00e4tsmedizin Berlin, Corporate Member of Freie Universit\u00e4t Berlin and Humboldt-Universit\u00e4t zu Berlin, 12203 Berlin, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,8,30]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"320","DOI":"10.1101\/gr.5755407","article-title":"Identification of Novel Peptide Hormones in the Human Proteome by Hidden Markov Model Screening","volume":"17","author":"Mirabeau","year":"2007","journal-title":"Genome 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