25-hydroxyvitamin D is a predictor of COVID-19 severity of hospitalized patients.

OBJECTIVES: Studies investigating the association between vitamin D and severity of COVID-19 have mixed results perhaps due to immunoassay assessment of total 25-hydroxyvitamin D (tD) (the sum of 25-hydroxyvitamin-D2 [25-OH-D2] and 25-hydroxyvitamin-D3 [25-OH-D3]). Liquid chromatography tandem mass spectrometry (LC-MS/MS) has high analytical specificity and sensitivity for 25-OH-D2 and 25-OH-D3, and thus enables a more accurate assessment of impact on COVID-19 outcomes. METHODS: We established reference intervals for 25-OH-D3 and tD using LC-MS/MS. 25-OH-D2, 25-OH-D3 and tD were quantitated for 88 COVID-19 positive and 122 COVID-19 negative specimens. Chi-square or Fisher's exact tests were used to test associations in binary variables. T-Tests or Wilcoxon rank sum tests were used for continuous variables. Cox proportional hazards were used to test associations between 25-OH-D3 or tD levels and length of stay (LOS). For mortality and ventilation, logistic regression models were used. RESULTS: COVID-19 patients with deficient (<20 ng/mL) levels of 25-OH-D3 had significantly longer LOS by 15.3 days. COVID-19 P patients with deficient (<20 ng/mL) and insufficient (<30 ng/mL) of tD had significantly longer LOS by 12.1 and 8.2 days, respectively. Patients with insufficient levels of tD had significantly longer LOS by 13.7 days. COVID-19 patients with deficient serum 25-OH-D3 levels had significantly increased risk-adjusted odds of in-hospital mortality (OR [95% CI]: 5.29 [1.53-18.24]); those with insufficient 25-OH-D3 had significantly increased risk for requiring ventilation during hospitalization was found at LCMS insufficient cutoff (OR [95% CI]: 2.75 [1.10-6.90]). CONCLUSIONS: There is an inverse relationship of 25-hydroxyvitamin D levels and hospital LOS for COVID-19 patients. Vitamin D status is a predictor for severity of outcomes. LCMS results are useful for assessing the odds of mortality and the need for ventilation during hospitalization.

A CASE REPORT OF A PREGNANT COVID-19 PATIENT REQUIRING ECMO SUPPORT

We present a case of a pregnant patient with ARDS secondary to COVID-19 who was selected for ECMO therapy. Our patient required cannulation for ECMO with CytoSorb therapy two times during hospitalization, but ultimately recovered with minimal physical impairments following hospitalization. B Introduction: b When compared with nonpregnant women, pregnant and postpartum women are at increased risk for severe illness requiring hospitalization, intensive care, and mechanical ventilation from respiratory viral illnesses. [Extracted from the article] Copyright of Critical Care Medicine is the property of Lippincott Williams & Wilkins and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full . (Copyright applies to all s.)

Surveillance genome sequencing reveals multiple SARS-CoV-2 variants circulating in central Texas, USA, with a predominance of delta variant and review of vaccine breakthrough cases.

As surges in the COVID-19 pandemic have continued worldwide, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has mutated, spawning several new variants, and impacting, to various degrees, transmission, disease severity, diagnostics, therapeutics, and natural and vaccine-induced immunity. Baylor Scott & White Health has implemented, along with laboratory diagnosis, SARS-CoV-2 sequencing to identify variants in its geographical service area. We analyzed virus sequencing results of specimens collected across Central Texas and found dramatic changes in variant distribution in the first half of 2021. The alpha variant (B 1.1.7) became predominant at week 13 and continued dominance until week 25. A growth rate of 1.20 (R2 = 0.92) for the first 15 weeks was noted and this growth gradually declined to -0.55 (R2 = 0.99) for the final 13 weeks. Currently, B.1.1.7 is being displaced with B.1.617.2 at a 0.58 growth rate (R2 = 0.97). We also investigated vaccine breakthrough cases (VBCs) within our healthcare system and present clinical data on 28 symptomatic patients.

The role of parliamentarians in promoting self-care interventions for sexual and reproductive health and rights: applying COVID-19 lens in the Eastern Mediterranean region.

Innovative people-centered care modalities including self-care interventions offer an opportunity to ensure continuity of healthcare services during COVID-19 and in post-COVID-19, as well as contribute to the achievement of universal health coverage. Parliamentarians are uniquely positioned to promote self-care interventions for sexual and reproductive health and rights through their legislative, budget allocation, oversight, and advocacy roles. However, existing health systems governance challenges in the Eastern Mediterranean region such as weak institutions setups, fragmentation of health programs, and limitation of resources could impede parliamentarians' progress. To address these challenges, the following recommended actions should be considered: (1) promote the adaptation of sexual and reproductive health and rights service packages at primary healthcare level to integrate self-care interventions (2) govern innovative people-centered care channels including self-care interventions; and (3) engage in a dialogue with civil society and communities to meet needs, raise public awareness and generate demand.

Ligand-based design, molecular dynamics and ADMET studies of suggested SARS-CoV-2 Mpro inhibitors.

Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) has been the choice of recent studies worldwide to control its pandemic. Given the similarity with the earlier SARS-CoV, it is possible to use the previously reported inhibitors to develop a new treatment for the current attack of SARS-CoV-2. This study used the formerly published SARS-CoV Mpro small-molecule protease inhibitors to develop a pharmacophore model in order to design new ligands. Several strategies and scaffolds were evaluated in silico giving rise to ten newly designed compounds. Molecular docking and dynamics simulations were performed on Mpro enzyme in its active site to evaluate the newly designed ligands I-X. The results obtained from this work showed that compounds III-VI had a better molecular docking score than the co-crystallized ligand baicalein (3WL) giving -5.99, -5.94, -6.31, -6.56 and -5.74 kcal mol-1, respectively. Moreover, they could bind to the Mpro binding site better than I, II and VII-X. The most promising chromen-2-one based compounds V-VI had sufficiently acceptable physicochemical and ADMET properties to be considered new leads for further investigations. This new understanding should help to improve predictions of the impact of new treatments on COVID-19.