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1.
researchsquare; 2023.
Preprint in English | PREPRINT-RESEARCHSQUARE | ID: ppzbmed-10.21203.rs.3.rs-3045366.v1

ABSTRACT

COVID-19 resulted from an infection by SARS-Cov-2 which is the main cause of ADRS in global population from 2019 on. It may contribute to higher rate of death among the patients with immunodeficiency based on recent reports. In addition, Good syndrome (GS) as a result of thymoma removal might cause in some long-lasting microbial infections. We described clinical aspects and viral mutations on a case of GS suffering from COVID-19. A 46-year-old man with fever, general respiratory signs and positive COVID-19 PCR test, with the history of thymoma removal surgery was admitted to Masih Daneshvari Hospital, Tehran, Iran. Lung radiographs and Oxygen saturation measurement disclosed considerable implication resulted in application of several anti-microbial medication. The delta variant (B.1.617.2 (21J Clade)) was the strain isolated from the patient by sequencing methods done by CNRL while the dominant strain circulated mostly among population was Omicron (B.1.1.529) at the time of sampling. Unfortunately, the patient had passed away a month later by sudden respiratory failure progressed in refractory septic shock. Despite the fact that opportunistic infections may lead the GS patients to a major health problematic condition, unusual persistent of infections such as non-dominant variant of SARS-Cov-2 could be observed through the disease timeline. Therefore, a fully screening of thymoma plus intra-host evolution monitoring of SARS-CoV-2 is highly recommended in immunocompromised patients.


Subject(s)
Shock, Septic , Respiratory Insufficiency , COVID-19 , Opportunistic Infections , Neoplastic Syndromes, Hereditary , Immunologic Deficiency Syndromes , Thymoma , Fever
2.
J Infect Dis ; 227(10): 1117-1118, 2023 05 12.
Article in English | MEDLINE | ID: covidwho-2325370
3.
J Cardiothorac Vasc Anesth ; 37(6): 1000-1012, 2023 06.
Article in English | MEDLINE | ID: covidwho-2312781

ABSTRACT

Sepsis remains among the most common causes of mortality in children with congenital heart disease (CHD). Extensive literature is available regarding managing sepsis in pediatric patients without CHD. Because the cardiovascular pathophysiology of children with CHD differs entirely from their typical peers, the available diagnosis and management recommendations for sepsis cannot be implemented directly in children with CHD. This review discusses the risk factors, etiopathogenesis, available diagnostic tools, resuscitation protocols, and anesthetic management of pediatric patients suffering from various congenital cardiac lesions. Further research should focus on establishing a standard guideline for managing children with CHD with sepsis and septic shock admitted to the intensive care unit.


Subject(s)
Heart Defects, Congenital , Sepsis , Shock, Septic , Child , Humans , Sepsis/diagnosis , Sepsis/therapy , Intensive Care Units , Intensive Care Units, Pediatric , Resuscitation/methods , Hospitalization , Heart Defects, Congenital/complications , Heart Defects, Congenital/diagnosis
4.
Cells ; 12(9)2023 05 06.
Article in English | MEDLINE | ID: covidwho-2312262

ABSTRACT

BACKGROUND AND AIM: Here, we assess the effect of adjuvant antioxidant therapies in septic shock patients with organ dysfunction and their effect on the enzymatic and non-enzymatic antioxidant systems. METHODS: Randomized clinical trial run between 2018 and 2022. One hundred and thirty-one patients with septic shock were included in five groups with 25, 27, 24, 26 and 29 patients each. Group 1 received vitamin C (Vit C), Group 2 vitamin E (Vit E), Group 3 n-acetylcysteine (NAC), Group 4 melatonin (MT) and group 5 no treatment. All antioxidants were administered orally or through a nasogastric tube for 5 days as an adjuvant to standard therapy. RESULTS: All patients had multiple organ failure (MOF) and low Vit C levels. Vit C therapy decreased CRP, PCT and NO3-/NO2- but increased Vit C levels. The SOFA score decreased with MT in 75%, Vit C 63% and NAC 50% vs. controls 33% (p = 0.0001, p = 0.03 and p = 0.001 respectively). MT diminished lipid peroxidation (LPO) (p = 0.01) and improved total antioxidant capacity (TAC) (p = 0.04). Vit E increased thiol levels (p = 0.02) and tended to decrease LPO (p = 0.06). Selenium levels were decreased in the control group (p = 0.04). CONCLUSIONS: Antioxidants used as an adjuvant therapy in the standard treatment of septic shock decrease MOF and oxidative stress markers. They increase the TAC and thiols, and maintain selenium levels.


Subject(s)
Melatonin , Selenium , Shock, Septic , Humans , Antioxidants/therapeutic use , Shock, Septic/drug therapy , Multiple Organ Failure/drug therapy , Organ Dysfunction Scores , Vitamin E/therapeutic use , Ascorbic Acid/therapeutic use , Vitamins , Intensive Care Units
5.
Niger J Clin Pract ; 26(3): 280-286, 2023 Mar.
Article in English | MEDLINE | ID: covidwho-2291692

ABSTRACT

Background: Although there is still no universally accepted treatment agent, steroids have been administered chronologically at every dose and at every stage of the COVID-19 pandemic. Aim: We aimed to evaluate the clinical efficacy of high-dose steroid therapy and its effect on mortality in COVID-19 patients with severe pneumonia, severe Acute Respiratory Distress Syndrome (ARDS), and septic shock. Patients and Methods: : Patients with severe pneumonia, septic shock, and ARDS due to COVID-19 who were followed up in the intensive care unit were retrospectively reviewed. Results: The study population was divided into two groups; the methylprednisolone pulse group (MP) (n = 55) and the dexamethasone group (Dex) (n = 39). When the values before and after treatment were compared; there was a statistically significant increase in the neutrophil/lymphocyte ratio after treatment in the MP group (p = 0.006). Although it was not statistically significant in the MP group, There was a numerical increase in D-dimer levels (p = 0.28). Thromboembolic complications developed in 2 patients in the MP group. The mortality outcomes of the groups were statistically similar (p = 0.943). Conclusion: We recommend steroids use in the condition that it is indicated in the critically ill group with the poor general condition. Since there is no significant difference between high-dose pulse steroid treatment and standard treatment doses, we think that the risk of complications should not be taken into account and high doses should not be used.


Subject(s)
COVID-19 , Respiratory Distress Syndrome , Shock, Septic , Humans , Shock, Septic/drug therapy , Pandemics , Retrospective Studies , Methylprednisolone/therapeutic use , Respiratory Distress Syndrome/drug therapy , Respiratory Distress Syndrome/etiology , Steroids
6.
JAMA ; 329(7): 535-536, 2023 02 21.
Article in English | MEDLINE | ID: covidwho-2297993

ABSTRACT

This Viewpoint discusses the failure of the Centers for Medicare & Medicaid Services' SEP-1 sepsis outcome improvement initiative to improve patients' sepsis outcomes and suggests changing the focus of sepsis quality metrics from processes to outcomes.


Subject(s)
Outcome and Process Assessment, Health Care , Quality Indicators, Health Care , Sepsis , Humans , Shock, Septic , United States
7.
J Med Case Rep ; 17(1): 156, 2023 Apr 08.
Article in English | MEDLINE | ID: covidwho-2296220

ABSTRACT

BACKGROUND: The use of hemoperfusion for cytokine removal and inflammatory mediators is increasingly intense, especially in coronavirus disease 2019 patients who are already known to the general public for having cytokine storms. However, we have known about these cytokine storms for a long time in the critical care world. One of the modalities to remove cytokines is to use filtration and adsorption techniques with continuous renal replacement therapy. The use of continuous renal replacement therapy is usually constrained by its very high cost compared with standard care, especially in Indonesia, where health costs are covered by national health insurance. In this case, we use hemodialysis and hemoperfusion, using a dialysis machine, which is more cost-effective and easy to use. CASE PRESENTATION: We used the Jafron HA330 cartridge, modified for the BBraun Dialog+ dialysis machine. This case report presents an 84-year-old Asian man with septic shock due to pneumonia, congestive heart failure, and acute chronic kidney disease accompanied by fluid overload. After undergoing hemodialysis and hemoperfusion separately, there was a gradual and significant clinical improvement. Clinical indicators, including the vasopressor inotropic score and infection markers, should all be considered when deciding whether to begin hemodialysis and hemoperfusion. CONCLUSION: In general, using hemoperfusion to treat septic shock patients can reduce the length of stay in the intensive care unit, and morbidity and mortality.


Subject(s)
COVID-19 , Hemoperfusion , Pneumonia , Shock, Septic , Male , Humans , Aged, 80 and over , Shock, Septic/complications , Shock, Septic/therapy , Hemoperfusion/methods , Cytokine Release Syndrome , Renal Dialysis/methods , COVID-19/therapy
8.
J Med Case Rep ; 17(1): 157, 2023 Apr 12.
Article in English | MEDLINE | ID: covidwho-2295911

ABSTRACT

BACKGROUND: Miliary tuberculosis is a life-threatening disease caused by the hematogenous spread of Mycobacterium tuberculosis. It is uncommon in pregnancy. Mortality rates for patients with miliary tuberculosis who require mechanical ventilation are high (60-70%). CASE PRESENTATION: We reported a rare and challenging case, a 35-year-old Asian woman with 34 weeks of pregnancy, and miliary tuberculosis with acute respiratory distress syndrome and septic shock. The patient presented with severe acute respiratory distress syndrome, necessitating mechanical ventilation, vasopressor, and pregnancy termination with caesarean section. The patient underwent blood purification with continuous veno-venous hemofiltration using an oXiris filter for 24 hours. After continuous veno-venous hemofiltration, the patient's condition was greatly improved, and the patient was successfully extubated and was able to breathe spontaneously without vasopressor on the third day. High levels of interleukin-6, interleukin-10, procalcitonin, C-reactive protein, interferon-γ, and tumor necrosis factor-α were found postoperatively. CONCLUSION: The bacterial infection of tuberculosis, acute respiratory distress syndrome, and the stress response from the caesarean section contributed to the high levels of cytokines, which correlated with the patient's severe inflammatory condition. The cytokine levels were greatly reduced after the blood purification procedure and this might be associated with the patient's clinical improvement. Extracorporeal blood purification could help to disrupt the vicious cycle of inflammation.


Subject(s)
Mycobacterium tuberculosis , Respiratory Distress Syndrome , Shock, Septic , Tuberculosis, Miliary , Humans , Pregnancy , Female , Adult , Tuberculosis, Miliary/complications , Cesarean Section/adverse effects , Respiratory Distress Syndrome/etiology , Shock, Septic/complications
9.
J Control Release ; 352: 931-945, 2022 Dec.
Article in English | MEDLINE | ID: covidwho-2300493

ABSTRACT

COVID-19 acquired symptoms have affected the worldwide population and increased the load of Intensive care unit (ICU) patient admissions. A large number of patients admitted to ICU end with a deadly fate of mortality. A high mortality rate of patients was reported with hospital-acquired septic shock that leads to multiple organ failures and ultimately ends with death. The patients who overcome this septic shock suffer from morbidity that also affects their caretakers. To overcome these situations, scientists are exploring progressive theragnostic techniques with advanced techniques based on biosensors, biomarkers, biozymes, vesicles, and others. These advanced techniques pave the novel way for early detection of sepsis-associated symptoms and timely treatment with appropriate antibiotics and immunomodulators and prevent the undue effect on other parts of the body. There are other techniques like externally modulated electric-based devices working on the principle of piezoelectric mechanism that not only sense the endotoxin levels but also target them with a loaded antibiotic to neutralize the onset of inflammatory response. Recently researchers have developed a lipopolysaccharide (LPS) neutralizing cartridge that not only senses the LPS but also appropriately neutralizes with dual mechanistic insights of antibiotic and anti-inflammatory effects. This review will highlight recent developments in the new nanotechnology-based approaches for the diagnosis and therapeutics of sepsis that is responsible for the high number of deaths of patients suffering from this critical disease.


Subject(s)
COVID-19 Drug Treatment , COVID-19 , Sepsis , Shock, Septic , Humans , Shock, Septic/therapy , Intensive Care Units , Lipopolysaccharides , COVID-19/diagnosis , Sepsis/diagnosis , Sepsis/drug therapy , Anti-Bacterial Agents/therapeutic use
10.
Curr Probl Cardiol ; 48(7): 101669, 2023 Jul.
Article in English | MEDLINE | ID: covidwho-2279252

ABSTRACT

There is an increased risk of venous thromboembolism among patients with COVID-19 infection, with the risk being higher among those needing the intensive level of care. Existing data is, however, limited regarding the outcomes of patients admitted with concurrent COVID-19 infection and pulmonary embolism (PE). All acute PE admissions were identified from the National Inpatient Sample database during 2020 using ICD-10 codes. Patients were subsequently classified into those with and without COVID-19 infection. The primary outcome of interest was in-hospital mortality. Using multivariate logistic regression, the predictors of mortality were assessed for patients with concurrent acute PE and COVID-19. The database query generated 278,840 adult patients with a primary diagnosis of PE. Of these, 4580 patients had concurrent PE and COVID-19 infection. The concurrent PE and COVID-19 infection group had a higher proportion of Black-American and Hispanic patients, and those living in the zip codes associated with the lowest annualized income compared to the PE alone group. Furthermore, patients in the concurrent PE and COVID-19 infection group had an increased risk of in-hospital mortality (adjusted odds ratio [aOR]:1.62; 95% CI: 1.17-2.24; P = 0.004), septic shock (aOR: 1.66; 95% CI 1.10-2.52; P = 0.016), respiratory failure (aOR: 1.78; 95% CI 1.53-2.06; P = 0.001), and a longer hospital stay [5.5 days vs 4.59 days; P = 0.001). Concurrent COVID-19 and PE admissions is associated with an increased in-hospital mortality, risk of septic shock and respiratory failure, and a longer length of hospital stay.


Subject(s)
COVID-19 , Pulmonary Embolism , Shock, Septic , Adult , Humans , COVID-19/complications , COVID-19/epidemiology , COVID-19/therapy , Hospitalization , Pulmonary Embolism/epidemiology , Pulmonary Embolism/therapy , Pulmonary Embolism/diagnosis , Length of Stay , Risk Factors
11.
Crit Care ; 27(1): 50, 2023 02 07.
Article in English | MEDLINE | ID: covidwho-2278711

ABSTRACT

Sepsis and septic shock remain drivers for morbidity and mortality in critical illness. The clinical picture of patients presenting with these syndromes evolves rapidly and may be characterised by: (a) microbial host invasion, (b) establishment of an infection focus, (c) opsonisation of bacterial products (e.g. lipopolysaccharide), (d) recognition of pathogens resulting in an immune response, (e) cellular and humoral effects of circulating pathogen and pathogen products, (f) immunodysregulation and endocrine effects of cytokines, (g) endothelial and organ damage, and (h) organ crosstalk and multiple organ dysfunction. Each step may be a potential target for a specific therapeutic approach. At various stages, extracorporeal therapies may target circulating molecules for removal. In sequence, we could consider: (a) pathogen removal from the circulation with affinity binders and cartridges (specific), (b) circulating endotoxin removal by haemoperfusion with polymyxin B adsorbers (specific), (c) cytokine removal by haemoperfusion with sorbent cartridges or adsorbing membranes (non-specific), (d) extracorporeal organ support with different techniques for respiratory and cardiac support (CO2 removal or extracorporeal membrane oxygenation), and renal support (haemofiltration, haemodialysis, or ultrafiltration). The sequence of events and the use of different techniques at different points for specific targets will likely require trials with endpoints other than mortality. Instead, the primary objectives should be to achieve the desired action by using extracorporeal therapy at a specific point.


Subject(s)
Extracorporeal Membrane Oxygenation , Hemoperfusion , Sepsis , Shock, Septic , Humans , Endotoxins , Hemoperfusion/methods , Polymyxin B/therapeutic use , Sepsis/therapy , Shock, Septic/therapy
13.
Nutrition ; 109: 112000, 2023 05.
Article in English | MEDLINE | ID: covidwho-2274462

ABSTRACT

Sepsis is a life-threatening condition characterized by multiorgan dysfunction due to an exaggerated host response to infection associated with a homeostatic failure. In sepsis, different interventions, aimed at improving clinical outcomes, have been tested over the past decades. Among these most recent strategies, intravenous high-dose micronutrients (vitamins and/or trace elements) have been investigated. According to current knowledge, sepsis is characterized by low thiamine levels, which are associated with illness severity, hyperlactatemia, and poor clinical outcomes. However, caution is needed about the clinical interpretation of thiamine blood concentration in critically ill patients, and the inflammatory status, based on C-reactive protein levels, should always be measured. In sepsis, parenteral thiamine has been administered as monotherapy or in combination with vitamin C and corticosteroids. Nevertheless, most of those trials failed to report clinical benefits with high-dose thiamine. The purpose of this review is to summarize the biological properties of thiamine and to examine current knowledge regarding the safety and efficacy of high-dose thiamine as pharmaconutrition strategy when administering singly or in combination with other micronutrients in critically ill adult patients with sepsis or septic shock. Our examination of the most up-to-date evidence concludes that Recommended Daily Allowance supplementation is relatively safe for thiamine-deficient patients. However, current evidence does not support pharmaconutrition with high-dose thiamine as a single therapy or as combination therapy aimed at improving clinical outcomes in critically ill septic patients. The best nutrient combination still needs to be determined, based on the antioxidant micronutrient network and the multiple interactions among different vitamins and trace elements. In addition, a better understanding of the pharmacokinetic and pharmacodynamic profiles of intravenous thiamine is needed. Future well-designed and powered clinical trials are urgently warranted before any specific recommendations can be made regarding supplementation in the critical care setting.


Subject(s)
Sepsis , Shock, Septic , Trace Elements , Adult , Humans , Thiamine/therapeutic use , Trace Elements/therapeutic use , Critical Illness/therapy , Sepsis/complications , Sepsis/drug therapy , Sepsis/diagnosis , Vitamins/therapeutic use , Ascorbic Acid/therapeutic use , Micronutrients/therapeutic use
14.
Medicina (Kaunas) ; 59(3)2023 Mar 21.
Article in English | MEDLINE | ID: covidwho-2266681

ABSTRACT

Background and Objectives: Since the first cases of multisystem inflammatory syndrome in children (MIS-C) in April 2020, the diagnostic challenge has been to recognize this syndrome and to differentiate it from other clinically similar pathologies such as Kawasaki disease (KD) and toxic shock syndrome (TSS). Our objective is to compare clinical signs, laboratory data and instrumental investigations between patients with MIS-C, KD and TSS. Materials and Methods: This retrospective observational study was conducted at the Children's Clinical University Hospital, Latvia (CCUH). We collected data from all pediatric patients <18 years of age, who met the Centers for Disease Control and Prevention case definition for MIS-C, and who presented to CCUH between December 2020 and December 2021. We also retrospectively reviewed data from inpatient medical records of patients <18 years of age diagnosed as having KD and TSS at CCUH between December 2015 and December 2021. Results: In total, 81 patients were included in this study: 39 (48.1%) with KD, 29 (35.8%) with MIS-C and 13 (16.1%) with TSS. In comparison with TSS and KD, patients with MIS-C more often presented with gastrointestinal symptoms (abdominal pain (p < 0.001), diarrhea (p = 0.003)), shortness of breath (p < 0.02) and headache (p < 0.003). All MIS-C patients had cardiovascular involvement and 93.1% of MIS-C patients fulfilled KD criteria, showing higher prevalence than in other research. Patients with KD had higher prevalence of cervical lymphadenopathy (p < 0.006) and arthralgias (p < 0.001). In comparison with KD and TSS, MIS-C patients had higher levels of ferritin (p < 0.001), fibrinogen (p = 0.04) and cardiac biomarkers, but lower levels of platelets and lymphocytes (p < 0.001). KD patients tended to have lower peak C-reactive protein (CRP) (p < 0.001), but higher levels of platelets. Acute kidney injury was more often observed in TSS patients (p = 0.01). Pathological changes in electrocardiography (ECG) and echocardiography were significantly more often observed in MIS-C patients (p < 0.001). Conclusions: This research shows that MIS-C, KD and TSS have several clinical similarities and additional investigations are required for reaching final diagnosis. All the patients with suspected MIS-C diagnosis should be examined for possible cardiovascular involvement including cardiac biomarkers, ECG and echocardiography.


Subject(s)
Mucocutaneous Lymph Node Syndrome , Shock, Septic , Child , Humans , SARS-CoV-2 , Mucocutaneous Lymph Node Syndrome/complications , Mucocutaneous Lymph Node Syndrome/diagnosis , Retrospective Studies , Biomarkers
15.
Crit Care ; 27(1): 110, 2023 03 13.
Article in English | MEDLINE | ID: covidwho-2263778

ABSTRACT

PURPOSE: Methylene blue (MB) has been tested as a rescue therapy for patients with refractory septic shock. However, there is a lack of evidence on MB as an adjuvant therapy, its' optimal timing, dosing and safety profile. We aimed to assess whether early adjunctive MB can reduce time to vasopressor discontinuation in patients with septic shock. METHODS: In this single-center randomized controlled trial, we assigned patients with septic shock according to Sepsis-3 criteria to MB or placebo. Primary outcome was time to vasopressor discontinuation at 28 days. Secondary outcomes included vasopressor-free days at 28 days, days on mechanical ventilator, length of stay in ICU and hospital, and mortality at 28 days. RESULTS: Among 91 randomized patients, forty-five were assigned to MB and 46 to placebo. The MB group had a shorter time to vasopressor discontinuation (69 h [IQR 59-83] vs 94 h [IQR 74-141]; p < 0.001), one more day of vasopressor-free days at day 28 (p = 0.008), a shorter ICU length of stay by 1.5 days (p = 0.039) and shorter hospital length of stay by 2.7 days (p = 0.027) compared to patients in the control group. Days on mechanical ventilator and mortality were similar. There were no serious adverse effects related to MB administration. CONCLUSION: In patients with septic shock, MB initiated within 24 h reduced time to vasopressor discontinuation and increased vasopressor-free days at 28 days. It also reduced length of stay in ICU and hospital without adverse effects. Our study supports further research regarding MB in larger randomized clinical trials. Trial registration ClinicalTrials.gov registration number NCT04446871 , June 25, 2020, retrospectively registered.


Subject(s)
Sepsis , Shock, Septic , Humans , Methylene Blue/pharmacology , Methylene Blue/therapeutic use , Vasoconstrictor Agents/therapeutic use , Sepsis/complications
16.
Front Immunol ; 14: 1137850, 2023.
Article in English | MEDLINE | ID: covidwho-2271059

ABSTRACT

Introduction: Millions of deaths worldwide are a result of sepsis (viral and bacterial) and septic shock syndromes which originate from microbial infections and cause a dysregulated host immune response. These diseases share both clinical and immunological patterns that involve a plethora of biomarkers that can be quantified and used to explain the severity level of the disease. Therefore, we hypothesize that the severity of sepsis and septic shock in patients is a function of the concentration of biomarkers of patients. Methods: In our work, we quantified data from 30 biomarkers with direct immune function. We used distinct Feature Selection algorithms to isolate biomarkers to be fed into machine learning algorithms, whose mapping of the decision process would allow us to propose an early diagnostic tool. Results: We isolated two biomarkers, i.e., Programmed Death Ligand-1 and Myeloperoxidase, that were flagged by the interpretation of an Artificial Neural Network. The upregulation of both biomarkers was indicated as contributing to increase the severity level in sepsis (viral and bacterial induced) and septic shock patients. Discussion: In conclusion, we built a function considering biomarker concentrations to explain severity among sepsis, sepsis COVID, and septic shock patients. The rules of this function include biomarkers with known medical, biological, and immunological activity, favoring the development of an early diagnosis system based in knowledge extracted from artificial intelligence.


Subject(s)
COVID-19 , Sepsis , Shock, Septic , Humans , Shock, Septic/diagnosis , Artificial Intelligence , Prospective Studies , Sepsis/diagnosis , Biomarkers , Neural Networks, Computer , Intensive Care Units
17.
Clin Transl Sci ; 16(3): 489-501, 2023 03.
Article in English | MEDLINE | ID: covidwho-2269278

ABSTRACT

Sepsis accounts for one in three hospital deaths. Higher concentrations of high-density lipoprotein cholesterol (HDL-C) are associated with apparent protection from sepsis, suggesting a potential therapeutic role for HDL-C or drugs, such as cholesteryl ester transport protein (CETP) inhibitors that increase HDL-C. However, these beneficial clinical associations might be due to confounding; genetic approaches can address this possibility. We identified 73,406 White adults admitted to Vanderbilt University Medical Center with infection; 11,612 had HDL-C levels, and 12,377 had genotype information from which we constructed polygenic risk scores (PRS) for HDL-C and the effect of CETP on HDL-C. We tested the associations between predictors (measured HDL-C, HDL-C PRS, CETP PRS, and rs1800777) and outcomes: sepsis, septic shock, respiratory failure, and in-hospital death. In unadjusted analyses, lower measured HDL-C concentrations were significantly associated with increased risk of sepsis (p = 2.4 × 10-23 ), septic shock (p = 4.1 × 10-12 ), respiratory failure (p = 2.8 × 10-8 ), and in-hospital death (p = 1.0 × 10-8 ). After adjustment (age, sex, electronic health record length, comorbidity score, LDL-C, triglycerides, and body mass index), these associations were markedly attenuated: sepsis (p = 2.6 × 10-3 ), septic shock (p = 8.1 × 10-3 ), respiratory failure (p = 0.11), and in-hospital death (p = 4.5 × 10-3 ). HDL-C PRS, CETP PRS, and rs1800777 significantly predicted HDL-C (p < 2 × 10-16 ), but none were associated with sepsis outcomes. Concordant findings were observed in 13,254 Black patients hospitalized with infections. Lower measured HDL-C levels were significantly associated with increased risk of sepsis and related outcomes in patients with infection, but a causal relationship is unlikely because no association was found between the HDL-C PRS or the CETP PRS and the risk of adverse sepsis outcomes.


Subject(s)
Sepsis , Shock, Septic , Adult , Humans , Cholesterol, HDL/genetics , Cholesterol, HDL/metabolism , Cholesterol Ester Transfer Proteins/genetics , Cholesterol Ester Transfer Proteins/metabolism , Hospital Mortality , Cholesterol, LDL/metabolism , Sepsis/genetics
18.
Front Cell Infect Microbiol ; 13: 1134511, 2023.
Article in English | MEDLINE | ID: covidwho-2268706

ABSTRACT

Introduction: Inflammation play important roles in the initiation and progression of acute lung injury (ALI), acute respiratory distress syndrome (ARDS), septic shock, clotting dysfunction, or even death associated with SARS-CoV-2 infection. However, the pathogenic mechanisms underlying SARS-CoV-2-induced hyperinflammation are still largely unknown. Methods: The animal model of septic shock and ALI was established after LPS intraperitoneal injection or intratracheal instillation. Bone marrow-derived macrophages (BMDMs) from WT and BPOZ-2 KO mouse strains were harvested from the femurs and tibias of mice. Immunohistology staining, ELISA assay, coimmunoprecipitation, and immunoblot analysis were used to detect the histopathological changes of lung tissues and the expression of inflammatory factors and protein interaction. Results and conclusions: We show a distinct mechanism by which the SARS-CoV-2 N (SARS-2-N) protein targets Bood POZ-containing gene type 2 (BPOZ-2), a scaffold protein for the E3 ubiquitin ligase Cullin 3 that we identified as a negative regulator of inflammatory responses, to promote NLRP3 inflammasome activation. We first demonstrated that BPOZ-2 knockout (BPOZ-2 KO) mice were more susceptible to lipopolysaccharide (LPS)-induced septic shock and ALI and showed increased serum IL-1ß levels. In addition, BMDMs isolated from BPOZ-2 KO mice showed increased IL-1ß production in response to NLRP3 stimuli. Mechanistically, BPOZ-2 interacted with NLRP3 and mediated its degradation by recruiting Cullin 3. In particular, the expression of BPOZ-2 was significantly reduced in lung tissues from mice infected with SARS-CoV-2 and in cells overexpressing SARS-2-N. Importantly, proinflammatory responses triggered by the SARS-2-N were significantly blocked by BPOZ-2 reintroduction. Thus, we concluded that BPOZ-2 is a negative regulator of the NLPR3 inflammasome that likely contributes to SARS-CoV-2-induced hyperinflammation.


Subject(s)
Acute Lung Injury , COVID-19 , NLR Family, Pyrin Domain-Containing 3 Protein , Nuclear Proteins , Shock, Septic , Animals , Mice , Acute Lung Injury/metabolism , Cullin Proteins , Inflammasomes/metabolism , Lipopolysaccharides/pharmacology , Mice, Inbred C57BL , NLR Family, Pyrin Domain-Containing 3 Protein/genetics , NLR Family, Pyrin Domain-Containing 3 Protein/metabolism , SARS-CoV-2/metabolism , Nuclear Proteins/genetics , Nuclear Proteins/metabolism
20.
researchsquare; 2023.
Preprint in English | PREPRINT-RESEARCHSQUARE | ID: ppzbmed-10.21203.rs.3.rs-2876881.v1

ABSTRACT

Importance: Neutropenic fever (NF) is an oncological emergency associated with worse outcomes. Unfortunately, there is a paucity of existing literature describing the association between neutropenic fever and COVID-19 infection. Objective: This study investigates the effect of COVID-19 infection on outcomes of hospitalization with neutropenic fever, highlighting the patients’ characteristics. Design: Retrospective cohort analyses were conducted using the National Inpatient Sample database year 2020. Setting:  Population-basedinpatient database in the United States Participants: All neutropenic fever adult hospitalizations (16,790 patients) were identified from the database using ICD-10 codes and were stratified into with and without COVID-19 infection. Main Outcomes and Measures: The primary outcome of interest was inpatient mortality. Secondary outcomes include respiratory failure, hemorrhagic shock, septic shock, acute kidney injury (AKI), health economic burden defined as longer length of stay (LOS), higher hospital cost, and patient charge. Results: The database query generated 16,790 adult patients with a primary diagnosis of neutropenic fever. Of these, 145 patients had concurrent neutropenic fever and COVID-19 infection. Patients with neutropenic fever and COVID-19 infection had 14 times higher odds (adjusted odds ratio (AOR) = 13.6, 95% confidence interval (CI) = 3.6 – 51.8) of inpatient mortality when compared to those without COVID-19. Additionally, they had 21 times greater odds of septic shock [10.3% vs. 0.4%, aOR/aIRR = 20.8, 95% CI 4.5 – 96.5], and 11 times higher odds of respiratory failure [27.6% vs. 4.0%, aOR/aIRR = 10.6, 95% CI 4.1 – 27.5] when compared to their counterparts without COVID-19. Furthermore, these patients had longer hospital stay (9.1 vs. 5.1 days, aIRR 1.14, 95% CI 1.3–2.4), higher average hospital cost ($20,279 vs. $15,357, aIRR 1.3, 95% CI 1.1–1.7), and higher average patient charges ($96,300 vs. $57,338, aIRR 1.7, 95% CI 1.1 – 2.7) Conclusion and Relevance: Neutropenic fever with concurrent COVID-19 infection was associated with significantly higher in-hospital mortality, greater risk of septic shock, respiratory failure, longer average hospital stay, and higher average hospital cost. Further research is needed to explore interventions to improve outcomes in hospitalized neutropenic fever patients with COVID-19. Prevention of COVID-19 infection in this population is expedient.


Subject(s)
Shock, Septic , Respiratory Insufficiency , COVID-19 , Shock, Hemorrhagic , Acute Kidney Injury , Fever
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