{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,21]],"date-time":"2025-02-21T23:16:56Z","timestamp":1740179816884,"version":"3.37.3"},"reference-count":25,"publisher":"Oxford University Press (OUP)","issue":"1","license":[{"start":{"date-parts":[[2024,10,4]],"date-time":"2024-10-04T00:00:00Z","timestamp":1728000000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2025,1,16]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n               <jats:p>Multifocal osteonecrosis is a rare entity which can lead to bone fragility, fractures, and considerable morbidity. The objective of this report is to describe the presentation, evaluation, and management of a case of multifocal osteonecrosis. A 34-year-old lady presented with multiple fractures and bone pain which was exacerbated during pregnancy. She was found to have osteonecrosis involving multiple sites. Investigation revealed that she had an undefined autoimmune condition with antinuclear antibody and anti-Ro (SS-A) positivity, not fulfilling criteria for diagnosis of Sjogren syndrome. She had low Protein S (PS) levels for age and gender (confirmed on two occasions 12\u2009weeks apart outside pregnancy). She had a novel variant in the PROS1 gene (NM_000313.4:c.1513\u2009G\u2009&amp;gt;\u2009A; p.Gly505Ser) which is associated with heterozygous PS deficiency. She had a good response to treatment with anticoagulation. The combination of inherited thrombophilia, autoimmunity, and the thrombophilic state induced by pregnancy probably contributed to the severe phenotype in this patient. The variant was identified in the Lamin G1 domain, which is instrumental in PS binding to tissue factor pathway inhibitor and C4-binding protein, thus playing a role in both the coagulation and complement pathway, and could explain the coexistence of autoimmunity with thrombophilia. This variant is present in 0.034% of South Asians in the gnomAD population database, and may represent an important cause of inherited thrombophilia in this group.<\/jats:p>","DOI":"10.1093\/mrcr\/rxae063","type":"journal-article","created":{"date-parts":[[2024,10,4]],"date-time":"2024-10-04T08:04:35Z","timestamp":1728029075000},"page":"46-52","source":"Crossref","is-referenced-by-count":0,"title":["Multifocal osteonecrosis due to the synergistic impact of inherited thrombophilia, autoimmunity, and pregnancy: A case report"],"prefix":"10.1093","volume":"9","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2658-4505","authenticated-orcid":false,"given":"Jayakrishnan C","family":"Menon","sequence":"first","affiliation":[{"name":"Department of Endocrinology, Sanjay Gandhi Postgraduate Institute of Medical Sciences , Lucknow, Uttar Pradesh,","place":["India"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nachiketa","family":"Parmar","sequence":"additional","affiliation":[{"name":"Department of Endocrinology, Sanjay Gandhi Postgraduate Institute of Medical Sciences , Lucknow, Uttar Pradesh,","place":["India"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2744-7825","authenticated-orcid":false,"given":"Kausik","family":"Mandal","sequence":"additional","affiliation":[{"name":"Department of Medical Genetics, Sanjay Gandhi Postgraduate Institute of Medical Sciences , Lucknow, Uttar Pradesh,","place":["India"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6985-515X","authenticated-orcid":false,"given":"Prabhaker","family":"Yadav","sequence":"additional","affiliation":[{"name":"Department of Systems Biology, Center of BioMedical Research (CBMR), Sanjay Gandhi Postgraduate Institute of Medical Sciences , 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