Background: The pandemic of new severe acute respiratory syndrome (SARS) due to coronavirus (CoV) 2 (SARS-CoV-2) has stressed the importance of effective diagnostic and prognostic biomarkers of clinical worsening and mortality. Epidemiological data showing a differential impact of SARS-CoV-2 infection on women and men have suggested a potential role for testosterone (T) in determining gender disparity in the SARS-CoV-2 clinical outcomes. Objectives: To estimate the association between T level and SARS-CoV-2 clinical outcomes (defined as conditions requiring transfer to higher or lower intensity of care or death) in a cohort of patients admitted in the respiratory intensive care unit (RICU). Materials and methods: A consecutive series of 31 male patients affected by SARS-CoV-2 pneumonia and recovered in the respiratory intensive care unit (RICU) of the "Carlo Poma" Hospital in Mantua were analyzed. Several biochemical risk factors (ie, blood count and leukocyte formula, C-reactive protein (CRP), procalcitonin (PCT), lactate dehydrogenase (LDH), ferritin, D-dimer, fibrinogen, interleukin 6 (IL-6)) as well as total testosterone (TT), calculated free T (cFT), sex hormone-binding globulin (SHBG), and luteinizing hormone (LH) were determined. Results: Lower TT and cFT were found in the transferred to ICU/deceased in RICU group vs groups of patients transferred to IM or maintained in the RICU in stable condition. Both TT and cFT showed a negative significant correlation with biochemical risk factors (ie, the neutrophil count, LDH, and PCT) but a positive association with the lymphocyte count. Likewise, TT was also negatively associated with CRP and ferritin levels. A steep increase in both ICU transfer and mortality risk was observed in men with TT < 5 nmol/L or cFT < 100 pmol/L. How to cite this article: RastrelliG, Di Stasi V, Inglese F, et al. Low testosterone levels predict clinical adverse outcomes in SARS-CoV-2 pneumonia patients.

Purpose Objective of this study was to assess the association between testosterone (T) levels and biochemical markers in a cohort of female patients admitted for SARS-CoV-2 infection in a respiratory intensive care unit (RICU). Methods A consecutive series of 17 women affected by SARSCoV-2 pneumonia and recovered in the RICU of the Hospital of Mantua were analyzed. Biochemical inflammatory markers as well as total testosterone (TT), calculated free T (cFT), sex hormone-binding globulin (SHBG), and luteinizing hormone (LH) were determined. Results TT and cFT were significantly and positively associated with PCT, CRP, and fibrinogen as well as with a worse hospital course. We did not observe any significant association between TT and cFT with LH; conversely, both TT and cFT showed a positive correlation with cortisol. By LOWESS analysis, a linear relationship could be assumed for CRP and fibrinogen, while a threshold effect was apparent in the relationship between TT and procalcitonin, LDH and ferritin. When the TT threshold value of 1 nmol/L was used, significant associations between TT and PCT, LDH or ferritin were observed for values above this value. For LDH and ferritin, this was confirmed also in an age-adjusted model. Similar results were found for the association of cFT with the inflammatory markers with a threshold effect towards LDH and ferritin with increased LDH and ferritin levels for values above cFT 5 pmol/L. Cortisol is associated with serum inflammatory markers with similar trends observed for TT; conversely, the relationship between LH and inflammatory markers had different trends. Conclusion Opposite to men, in women with SARS-CoV-2 pneumonia, higher TT and cFT are associated with a stronger inflammatory status, probably related to adrenal cortex hyperactivity,

Hemophagocytic lymphohistiocytosis (HLH) is a potentially lifethreatening entity resulting from the dysregulated activation of Tlymphocytes. Secondary HLH (sHLH) complicates various medical conditions. Similar to 2009 H1N1 influenza, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection appears to trigger a cytokine storm in a subset of individuals. The patient of 64 years old presented himself in the emergency department with cough and fever, and was subjected to the nasopharyngeal swab and tested positive for SARS-CoV-2, as expected from epidemiological data. Hospitalized in cohort isolation, he initially presented a multi-organ impairment and specifically a worsening of his renal function, initial coagulopathy, lymphopenia modest thrombocytopenia and systemic inflammatory commitment. During the course of the 6th day, a picture of a probable cytokine storm and clear multiple organ failure (MOF) was evident. Therefore a clinical diagnosis was made according to HScore criteria of secondary hemophagocytic lymphohistiocytosis. We started high-dose steroid therapy (dexamethasone 8 mg bid). And after 36 h, the patient was significantly improved: alert, oriented, weaned from non-invasive ventilation (NIV) and stable blood chemistry. In conclusion, in coronavirus disease 2019 (COVID-19) positive patients with evidence of cytokine storm and acute respiratory distress syndrome (ARDS), the levels of blood triglycerides and ferritin are useful and often decisive to comfort the diagnosis of sHLH if cytopenia of one or more lines is revealed.

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