Background: Persistent elevations in beta-human chorionic gonadotropin (β-hCG) can be an ominous sign of both trophoblastic and non-trophoblastic malignancies. The absence of a clearly identified etiology of β-hCG elevation warrants pursuit of further diagnostic testing to determine the source of ectopic β-hCG.
Case Report: A virginal 26-year-old woman with past medical history significant for persistently elevated β-hCG presented to our Emergency Department with shortness of breath, pleuritic chest pain, nausea, and vomiting, and was found to have widely metastatic gastric signet ring cell adenocarcinoma. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: Although elevated serum β-hCG is a generally a marker of pregnancy, β-hCG elevation without clear etiology necessitates ruling out other insidious processes. Failure to maintain and pursue a broad differential in the context of unexplained elevations of β-hCG can result in catastrophic missed or delayed diagnosis.
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http://dx.doi.org/10.1016/j.jemermed.2022.01.010 | DOI Listing |
Br J Dermatol
January 2025
Inflammatory Immune-Mediated Chronic Skin Diseases Laboratory (GC26), Maimonides Biomedical Research Institute of Cordoba (IMIBIC)/University of Cordoba/Reina Sofia University Hospital, Menendez Pidal Ave, 14004, Córdoba, Spain.
Introduction: Non-segmental vitiligo (NSV) is an autoimmune condition characterized by melanocyte loss. While skin-specific mechanisms are well-studied, systemic immune dysregulation contributing to NSV pathogenesis remains unclear.
Objective: This study employs a multi-omic single-cell approach to investigate circulating immune cells in NSV, integrating transcriptional and chromatin accessibility data.
Environ Toxicol
January 2025
Center for Tobacco Products, US Food and Drug Administration, Silver Spring, Maryland, USA.
Adolescence and pregnancy involve elevated levels of hormones (e.g., estrogen, androgen) during which exposure to endocrine disruptors could have long-term developmental and reproductive toxicity (DART) effects.
View Article and Find Full Text PDFSmall
January 2025
The Ninth Medical Center of Chinese PLA General Hospital, Beijing, 100101, P. R. China.
Circularly polarized light-emitting devices have found extensive application prospects in 3D displays and optoelectronic information. Among them, circularly polarized organic light-emitting diodes (CP-OLED), as a rising star of circularly polarized light-emitting devices, achieved good research results. However, the preparation of CP-OLED with a high electroluminescence asymmetry factor and high external quantum efficiency is a hot and difficult research topic.
View Article and Find Full Text PDFJ Cachexia Sarcopenia Muscle
February 2025
Department of International Agricultural Technology, Graduate School of International Agricultural Technology, Seoul National University, Seoul, Republic of Korea.
Background: Muscle diseases are serious challenges to human health. Prokineticin receptor 1 (PROKR1) has emerged as a potential target to improve muscle function through increasing oxidative muscle fibres, but there are no clinically applicable synthetic PROKR1 agonists.
Methods: Drugs with biological properties of prokineticin 2 (PK2) were discovered through connectivity map (CMap) analysis.
Aging Cell
January 2025
Department of Nephrology, Key Laboratory of Kidney Disease and Blood Purification, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China.
Renal proximal tubular epithelial cell (PTEC) senescence and defective autophagy contribute to kidney aging, but the mechanisms remain unclear. Caveolin-1 (CAV1), a crucial component of cell membrane caveolae, regulates autophagy and is associated with cellular senescence. However, its specific role in kidney aging is poorly understood.
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