COVID-19 Syndrome Research Articles

Bioinformatic analysis predicts the regulatory function of noncoding SNPs associated with Long COVID-19 syndrome.

Long or Post COVID-19 is a condition of collected symptoms persisted after recovery from COVID-19. Host genetic factors play a crucial role in developing Long COVID-19, and GWAS studies identified several SNPs/genes in various ethnic populations. In African-American population two SNPS, rs10999901 (C>T, p = 3.6E-08, OR = 1.39, MAF-0,27, GRCH38, chr10:71584799bp) and rs1868001 (G>A, p = 6.7E-09, OR = 1.40, MAF-0.46, GRCH38, chr10:71587815bp) and in Hispanic population, rs3759084 (A>C, p = 9.7E-09, OR = 1.56, MAF-0.17, chr12: 81,110,156bp) are strongly associated with Long COVID-19. All these three SNPs reside in noncoding regions implying their regulatory function in the genome. In silico dissection suggests that rs10999901 and rs1868001 physically interact with the CDH23 and C10orf105 genes. Both SNPs act as distant enhancers and bind with several transcription factors (TFs). Further, rs10999901 SNP is a CpG that is methylated in CD4++ T cells and monocytes and loses its methylation due to transition from C>T. rs3759084 is located in the promoter (- 687bp) of MYF5, acts as a distant enhancer, and physically interacts with PTPRQ. These results offer plausible explanations for their association and provide the basis for experiments to dissect the development of symptoms of Long COVID-19.

Two Birds with One Stone: Drug Regime Targets Viral Pathogenesis Phases and COVID-19 ARDS at the Same Time.

Severe COVID-19 or severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a kind of viral pneumonia induced by infection with the coronavirus that causes ARDS. It involves symptoms that are a combination of viral pneumonia and ARDS. Antiviral or immunosuppressive medicines are used to treat many COVID-19 patients. Several drugs are now undergoing clinical studies in order to see if they can be repurposed in the future. In this study, in silico biomarker-targeted methodologies, such as target/ molecule virtual screening by docking technique and drug repositioning strategy, as well as data mining approach and meta-analysis of investigational data, were used. In silico findings of used combination of drug repurposing and high-throughput docking methods presented acetaminophen, ursodiol, and β-carotene as a three-drug therapy regimen to treat ARDS induced by viral pneumonia in addition to inducing direct antiviral effects against COVID-19 viral infection. In the current study, drug repurposing and high throughput docking methods have been employed to develop combination drug regimens as multiple-molecule drugs for the therapy of COVID-19 and ARDS based on a multiple-target therapy strategy. This approach offers a promising avenue for the treatment of COVID-19 and ARDS, and highlights the potential benefits of drug repurposing in the fight against the current pandemic.

Shared genetic architecture between COVID-19 and irritable bowel syndrome: a large-scale genome-wide cross-trait analysis

BackgroundIt has been reported that COVID-19 patients have an increased risk of developing IBS; however, the underlying genetic mechanisms of these associations remain largely unknown. The aim of this study was to investigate potential shared SNPs, genes, proteins, and biological pathways between COVID-19 and IBS by assessing pairwise genetic correlations and cross-trait genetic analysis.Materials and methodsWe assessed the genetic correlation between three COVID-19 phenotypes and IBS using linkage disequilibrium score regression (LDSC) and high-definition likelihood (HDL) methods. Two different sources of IBS data were combined using METAL, and the Multi-trait analysis of GWAS (MTAG) method was applied for multi-trait analysis to enhance statistical robustness and discover new genetic associations. Independent risk loci were examined using genome-wide complex trait analysis (GCTA)-conditional and joint analysis (COJO), multi-marker analysis of genomic annotation (MAGMA), and functional mapping and annotation (FUMA), integrating various QTL information and methods to further identify risk genes and proteins. Gene set variation analysis (GSVA) was employed to compute pleiotropic gene scores, and combined with immune infiltration algorithms, IBS patients were categorized into high and low immune infiltration groups.ResultsWe found a positive genetic correlation between COVID-19 infection, COVID-19 hospitalization, and IBS. Subsequent multi-trait analysis identified nine significantly associated genomic loci. Among these, eight genetic variants were closely related to the comorbidity of IBS and COVID-19. The study also highlighted four genes and 231 proteins associated with the susceptibility to IBS identified through various analytical strategies and a stratification approach for IBS risk populations.ConclusionsOur study reveals a shared genetic architecture between these two diseases, providing new insights into potential biological mechanisms and laying the groundwork for more effective interventions.

Is there a rationale for hyperbaric oxygen therapy in the patients with Post COVID syndrome? : A critical review.

The SARS-CoV-2 pandemic has resulted in 762 million infections worldwide from 2020 to date, of which approximately ten percent are suffering from the effects after infection in 2019 (COVID-19) [1, 40]. In Germany, it is now assumed that at least one million people suffer from post-COVID condition with long-term consequences. These have been previously reported in diseases like Myalgic Encephalomyelitis (ME) and Chronic Fatigue Syndrome (CFS). Symptoms show a changing variability and recent surveys in the COVID context indicate that 10-30 % of outpatients, 50 to 70% of hospitalised patients suffer from sequelae. Recent data suggest that only 13% of all ill people were completely free of symptoms after recovery [3, 9]. Current hypotheses consider chronic inflammation, mitochondrial dysfunction, latent viral persistence, autoimmunity, changes of the human microbiome or multilocular sequelae in various organ system after infection. Hyperbaric oxygen therapy (HBOT) is applied since 1957 for heart surgery, scuba dive accidents, CO intoxication, air embolisms and infections with anaerobic pathogens. Under hyperbaric pressure, oxygen is physically dissolved in the blood in higher concentrations and reaches levels four times higher than under normobaric oxygen application. Moreover, the alternation of hyperoxia and normoxia induces a variety of processes at the cellular level, which improves oxygen supply in areas of locoregional hypoxia. Numerous target gene effects on new vessel formation, anti-inflammatory and anti-oedematous effects have been demonstrated [74]. The provision of intermittently high, local oxygen concentrations increases repair and regeneration processes and normalises the predominance of hyperinflammation. At present time only one prospective, randomized and placebo-controlled study exists with positive effects on global cognitive function, attention and executive function, psychiatric symptoms and pain interference. In conclusion, up to this date HBO is the only scientifically proven treatment in a prospective randomized controlled trial to be effective for cognitive improvement, regeneration of brain network and improvement of cardiac function. HBOT may have not only theoretical but also potential impact on targets of current pathophysiology of Post COVID condition, which warrants further scientific studies in patients.

THE IMPACT OF MATERNAL SECOND SIGNAL SYSTEM ACTIVITY ON MOTHER-CHILD INTERACTIONS DURING THE VERBAL DEVELOPMENT STAGE IN THE CONTEXT OF WAR AND HEALTH CRISES

The transition from nonverbal to verbal communication in children is signifi cantly infl uenced by the maternal secondary signaling system. Current geopolitical and health crises, such as the war in Ukraine and post- COVID-19 syndrome, exacerbate maternal stress and may aff ect mother- child interactions and child development.Aim. The purpose of this study is to examine diff erences in the activity of the second signaling system between mothers who report diffi culties perceiving their children and those who do not, and to understand the impact of these diff erences on motherchild interactions during the child’s verbal developmental period.Materials and methods. The study involved 184 mothers, divided into two groups: 98 mothers who reported diffi culties in perceiving their children and 86 mothers who did not. The The Questionnaire for Assessing the Activity of the Second Signal System (Language and Cognitive Test: How Well Do You Understand and Communicate?) (Lunov, 2023) was used to evaluate the activity of the second signal system across eight subscales corresponding to diff erent cytoarchitectonic fi elds. Independent samples t-tests were conducted to compare the mean scores of each subscale and the overall integral index between the groups. Results. Signifi cant diff erences were found on all subscales and the integral index, indicating notable discrepancies in the activity of the second signaling system between the two groups. Mothers who reported diffi culties had consistently lower scores, highlighting the need for targeted interventions to support their communication and interaction with their children. Discussion. The fi ndings highlight the critical role of the second signaling system in maternal perception and interaction. The combined eff ects of war-induced trauma and post- COVID-19 syndrome exacerbate these challenges and underscore the need for comprehensive support programs. Findings from studies underscore the importance of addressing transgenerational attachment factors and maternal mental health to improve mother- child relationships and promote healthy developmental outcomes.

Highly inflamed coronary plaque detected by Angio-CT in a 28-year-old patient with STEMI and long COVID-19

AbstractLong COVID-19 syndrome increases the risk of cardiovascular events. Although rare in young people, acute coronary syndromes occur more often in those recently infected with COVID-19. This report discusses a rare case of myocardial infarction in a 28-year-old male with no prior medical issues, occurring four weeks after a mild COVID-19. Initially, the patient refused invasive coronary angiography, so a coronary computed tomography angiography (CCTA) was conducted during an ST-elevation myocardial infarction (STEMI). The CCTA, using fat attenuation index (FAI) technology, revealed significant inflammation at the culprit lesion. This CCTA and FAI analysis were done shortly after the STEMI onset, before revascularization, highlighting the case's uniqueness. In patients with recent COVID-19, CCTA combined with FAI analysis of perivascular inflammation can help identify those at risk for acute coronary events. In this case, FAI analysis detected high inflammation, suggesting a potential cause for STEMI in a young patient with long COVID-19.

Clinical significance of post-COVID-19 in patients with hypertension, taking into account the polymorphism of genes encoding components of the renin-angiotensin system

To date, there has been no consensus on the impact of polymorphism of components of the renin-angiotensin-aldosterone system (RAAS) on the course of a new coronavirus infection or a possible role in post-COVID syndrome. The objective is to study the significance of COVID-19 and gene polymorphism encoding components of renin angiotensin system in patients with hypertension. Materials and methods: A clinical examination was conducted on 116 stage 2 hypertensive patients with uncontrolled hypertension. Of these, 96 underwent mild or moderate COVID-19, 51 before 12 weeks and 45 after 12. Results. Patients in the ongoing symptomatic phase of COVID- 19 had higher systolic blood pressure than those with post COVID syndrome (p1-2 = 0.03659, p1-3 ≤ 0,00001).The association of polymorphisms of genes AGT:704T>C, AGT521C>T, AGTR1:1166A>C, AGTR2:1675G>A, CYP1IB2:-344C>T with gender, BMI and COVID-19 transmission has not been identified. In the symptomatic phase of COVID-19, carriage of the TT genotype for the AGT704 gene was less frequent (p=0.005) compared to the control group. Conclusions. The effect of COVID on an increase in blood pressure in stage 2 hypertensive patients was determined. An association between blood pressure instability and BMI after COVID was established. During the symptomatic COVID phase, there was an association between increased blood pressure and the C allele of AGT gene polymorphisms (T704).

Neuropsychiatric Manifestations of COVID-19 Disease and Post Covid Syndrome: The Role of N Acetyl-cysteine and Acetyl-L-carnitine.

COVID-19 is associated with neuropsychiatric symptoms, such as anosmia, anxiety, depression, stress-related reactions, and psychoses. The illness can cause persistent cognitive impairment and "brain fog", suggesting chronic brain involvement. Clinical entities of ongoing symptomatic COVID-19 and Post COVID Syndrome (PCS) mainly present neuropsychiatric symptoms such as dysgeusia, headache, fatigue, anxiety, depression, sleep disturbances, and post-traumatic stress disorder. The pathophysiology of COVID-19-related brain damage is unclear, but it is linked to various mechanisms such as inflammation, oxidative stress, immune dysregulation, impaired glutamate homeostasis, glial and glymphatic damage, and hippocampal degeneration. Noteworthy is that the metabotropic receptor mGluR2 was discovered as a mechanism of internalisation of SARS-CoV-2 in Central Nervous System (CNS) cells. N-acetylcysteine (NAC) and acetyl-L-carnitine (ALC) are two supplements that have already been found effective in treating psychiatric conditions. Furthermore, NAC showed evidence in relieving cognitive symptomatology in PCS, and ALC was found effective in treating depressive symptomatology of PCS. The overlapping effects on the glutamatergic system of ALC and NAC could help treat COVID-19 psychiatric symptoms and PCS, acting through different mechanisms on the xc-mGluR2 network, with potentially synergistic effects on chronic pain and neuro-astrocyte protection. This paper aims to summarise the current evidence on the potential therapeutic role of NAC and ALC, providing an overview of the underlying molecular mechanisms and pathophysiology. It proposes a pathophysiological model explaining the effectiveness of NAC and ALC in treating COVID-19-related neuropsychiatric symptoms.

Neuropathology of Severe Depression in Long COVID-19 Infection; Possible Roles for Astrocytes, Creatine Kinase and Lactate Dehydrogenase Activity

Background: The incidence of depression has increased significantly during the COVID-19 pandemic. Some individuals infected with COVID-19 develop persistent neurological and neuropsychiatric symptoms approximately 12 weeks after the acute infection, a condition known as long COVID-19 syndrome. However, the underlying pathogenesis remains unclear. Glial fibrillary acidic protein (GFAP), creatine kinase (CK), and lactate dehydrogenase (LDH) are enzymes abundant in the central nervous system (CNS), playing important roles in neuronal energy homeostasis. Objectives: This study aimed to investigate the correlation between serum GFAP, CK, and LDH levels and depression in patients with long COVID-19 syndrome. Methods: This cross-sectional study involved 150 patients (75 males and 75 females). The Beck Depression Inventory-II (BDI-II) was used, along with standardized peripheral serum assessments. Serum GFAP, CK, and LDH levels were measured using customized direct ELISA. Data were matched by age and sex, and analyzed using Spearman non-parametric tests to assess the correlation between variables. Results: The serum level of GFAP was significantly higher in both males and females with severe depression compared to those with mild depression (282 ± 3 pg/mL, 280 ± 2.9 pg/mL, P = 0.001). The mean serum CK level was 239 ± 24.05 U/L in males and 142 ± 18.08 U/L in females (P < 0.0001). Furthermore, a significant positive correlation was found between CK serum levels and Beck scores (r = 0.33, 95% CI = 0.176 to 0.469), with a similar pattern observed for LDH (r = 0.22, 95% CI = 0.042 to 0.358). GFAP, CK, and LDH levels were higher in male patients. Conclusions: This study identified potential neurobiological mechanisms in CNS-related long COVID syndrome, suggesting that elevated astrocyte activity, along with increased serum CK and LDH levels, may contribute to the neurobiological issues seen in depressed long COVID survivors. Men appeared to be more susceptible to these changes than women. Further research is essential.

Exploring the Psychosocial Impact of Hospitalization for COVID-19: Insights from Patient Experiences

Abstract Background The COVID-19 pandemic has severely tested the organizational structure and operational effectiveness of healthcare systems. We aimed to explore the experiences of patients who have been hospitalized due to COVID-19. Methods Employing purposive sampling, semi-structured interviews were conducted covering eight topics: 1) the experience of COVID-19 diagnosis, 2) the most difficult moments during hospitalization, 3) difficulties related to hospital conditions and safety protocols, 4) interactions with healthcare professionals, 5) received support, 6) social stigma, 7) concerns about the future, and 8) post-COVID and long COVID syndrome. Twelve individuals (six women and six men; mean age 57.5 (SD = 13) years; mean length of stay 18.1 (SD = 3.1) days) participated. The data analysis was carried out using the phenomenological method according to Colaizzi. Results Patients reported a spectrum of emotions including loneliness, isolation, abandonment, disappointment, insecurity and fear of death. Interactions with healthcare professionals revealed a dichotomy: experiences of respectful, reassuring care contrasted with encounters lacking psycho-emotional support within an impersonal healthcare setting. Conclusions This study sheds light on the experiences of patients on the nursing wards and their psychosocial burden. Most of them reported negative emotions such as loneliness, isolation, sadness, fear and anxiety rather than positive experiences such as hope, interpersonal connectedness, self-identity, empathy, caring and safety. Key messages • The study highlights psychosocial challenges for COVID-19 patients, emphasizing the urgent need for robust support systems. • The study provides insights for future similar situations and highlights the need for adaptable care models based on principles such as empathy, safety and personalized approaches.

Cardiac imaging in cardiovascular complications due to COVID-19

Cardiovascular complications are a common manifestation of acute phase and chronic phase of coronavirus disease 2019 (COVID-19) infection. Complications include cardiomyopathy, myocardial infarction, arrhythmias, heart failure, and deep venous thrombosis. Imaging is widely used in patients with suspected myocardial injury or myocarditis. Because of its availability and portability, transthoracic echocardiography (TTE) is used as the initial imaging modality in patients with suspected COVID-19 myocarditis. Echocardiographic studies performed on patients with suspected or confirmed COVID-19 should be as focused as necessary to obtain diagnostic views but should also be comprehensive enough to avoid the need to return for additional images. Following COVID-19 infection, a variety of persistent respiratory, neurological, cardiovascular, and other symptoms can persist for weeks, months, or even years. A cardiac examination and any resulting abnormalities in the structure and function of the heart may occasionally last for several months following a COVID-19 diagnosis. This is referred to as long COVID syndrome. Cardiac magnetic resonance (CMR) imaging has often been used clinically to complement echocardiography, particularly tissue characterization imaging which demonstrated subclinical myocardial edema with or without fibrosis in patients recovered from illness. Keyword: cardiac complication, cardiac imaging, cardiomyopathies, COVID-19

Iron status in children with acute COVID-19 and paediatric inflammatory multisystem syndrome during infection and after recovery

BackgroundCOVID-19 has significant effects on organ function, particularly on lung function and iron metabolism. Studies have shown increased levels of ferritin, an iron storage protein, in COVID-19 patients, indicating potential changes in iron utilization. Research has focused primarily on adults, with limited studies on paediatric patients and a lack of comparisons with MIS-C patients. This study aimed to assess iron status in paediatric COVID-19 patients using traditional and new biomarkers, soluble transferrin receptors (sTfR) and Reticulocyte hemoglobin equivalent (RET-He), to improve diagnosis and prognosis. Additionally, we sought to compare iron status between acute COVID-19 patients and MIS-C patients and evaluate the relationships among iron dysmetabolism, disease severity, and prognosis in paediatric patients. The study also involved monitoring iron status during and after infection to understand its impact on patient severity and prognosis.MethodsA cohort study involving 49 patients aged 1 month to 18 years was conducted at the isolation department of Mansoura University Children's Hospital. The study included 36 patients with acute COVID-19 and 13 with multisystem inflammatory syndrome of childhood (MIS-C). Diagnosis was based on PCR from a deep nasopharyngeal swab or a positive antibody test. Follow-up of survivors was conducted 3 months after recovery. Blood samples were obtained during infection and at follow-up for CBC, Ret-He, iron kinetics, and sTfR analyses.ResultsSignificant iron deficiency anaemia was observed in all patients during infection, with improvement after 3 months of recovery in survivors. The improvement was more obvious in MIS-C patients, with Hb and iron kinetics not significantly affected by disease severity. The STfR was significantly lower in nonsurvivors than in survivors. The ROC curve showed that a baseline sTfR ≤ 18 nmol/L was a statistically significant difference between nonsurvivors and survivors (area under the curve (AUC) = 0.810, p < .001), with 66.7% sensitivity and 82.5% specificity. Regression analysis revealed that patients with baseline sTfRs ≤ 18 nmol/L were 5.9 times more susceptible to death.ConclusionThis study revealed that COVID-19 in children caused iron deficiency anaemia, which improved within 3 months after recovery. Haemoglobin and sTfRs were identified as reliable indicators of IDA in these patients, unlike iron kinetics and RET-He.

Cutaneous Manifestations of Pediatric COVID-19 and Multisystem Inflammatory Syndrome in Children (MIS-C)

Background: Characteristics of dermatological manifestations are frequently encountered in pediatric COVID-19, similar to the presentation in multisystem inflammatory syndrome in children (MIS-C), which typically emerges following COVID-19 infection. The rash exhibits considerable diversity and lacks specificity. However, investigations into the dermatological features of COVID-19 in children and MIS-C remain limited. Objective: To investigate cutaneous manifestations in both COVID-19 and MIS-C in children. Materials and Methods: Cross-sectional study between February and August 2022 in hospitalized children with COVID-19 who had cutaneous lesions and all hospitalized children with MIS-C. Results: Forty-six cases of COVID-19 patients with dermatological manifestations were identified among 1,602 COVID-19 patients, constituting 2.9%. Additionally, 35 cases of MIS-C were diagnosed. The majority of COVID-19 patients in the present study exhibited mild symptoms, accounting for 42 cases (91.3%). The median age of COVID-19 patients was 1.8 years, which was significantly lower than that of the MIS-C group, which was 4.3 years, with a statistically significant difference (p=0.024). The most common rash types observed in both groups were urticaria, maculopapular rash, and macular erythema. Other rash types noted in COVID-19 included erythema nodosum, Stevens-Johnson syndrome, erythema multiformelike, vesicles, and livedo reticularis. Among MIS-C patients, 31 cases (88.6%) presented with mucocutaneous manifestations, with 26 cases (74.3%) exhibiting concurrent mucocutaneous involvement. There was no significant difference in the occurrence of cardiac symptoms between the group with mucocutaneous manifestations and/or dermatological symptoms, which was 81.8%, compared to the group without mucocutaneous or dermatological symptoms, which was 100% (p=0.102). Conclusion: The cutaneous manifestations in pediatric COVID-19 and those with MIS-C vary widely and are non-specific. In patients presenting with fever and rash during a COVID-19 outbreak, recognizing these cutaneous symptoms is crucial for prompt diagnosis and treatment especially those who are asymptomatic. Further studies involving COVID-19 patients, both with and without rash, may provide correlation between disease progression and skin manifestation.

Individualized and Controlled Exercise Training Improves Fatigue and Exercise Capacity in Patients with Long-COVID

(1) Background: Long-term health effects after SARS-CoV-2 infections can manifest in a plethora of symptoms, significantly impacting the quality of life of affected individuals. (2) Aim: The present paper aimed to assess the effects of an individualized and controlled exercise intervention on fatigue and exercise capacity among Long-COVID (LC) patients in an ambulatory setting. (3) Methods: Forty-one (n = 41) LC patients performed an exercise protocol with an individualized control of the patients’ training intensity during the study period based on the individual’s ability to achieve the target criteria. The program was carried out two to three times a week, each session lasted 30 min, and the study parameters were recorded at the beginning of the program, as well as after 6 and 12 weeks, respectively. These included both patient-reported (PCFS questionnaire, FACIT–Fatigue questionnaire) and objective (one-minute sit-to-stand test (1MSTST), workload) outcomes. (4) Results: The exercise training intervention resulted in significant improvements in the FACIT–Fatigue (F(2, 80) = 18.08, p &lt; 0.001), 1MSTST (χ2(2) = 19.35, p &lt; 0.001) and workload scores (χ2(2) = 62.27, p &lt; 0.001), while the PCFS scores remained unchanged. Changes in the workload scores were dependent on the frequency of the completed exercise sessions and were higher in the LC patients with a moderate Post COVID Syndrome Score (PCS) compared to a severe PCS. (5) Conclusions: The individualized and controlled training approach demonstrated efficacy in reducing fatigue and enhancing exercise capacity among outpatient LC patients. However, for complete regeneration, a longer, possibly indefinite, treatment is required, which in practice would be feasible within the framework of legislation.

Variants rs3804099 and rs3804100 in the TLR2 Gene Induce Different Profiles of TLR-2 Expression and Cytokines in Response to Spike of SARS-CoV-2.

The present study aimed to identify in patients with severe COVID-19 and acute respiratory distress syndrome (ARDS) the association between rs3804099 and rs3804100 (TLR2) and evaluate the expression of TLR-2 on the cell surface of innate and adaptive cells of patients' carriers of C allele in at least one genetic variant. We genotyped 1018 patients with COVID-19 and ARDS. According to genotype, a subgroup of 12 patients was selected to stimulate peripheral blood mononuclear cells (PBMCs) with spike and LPS + spike. We evaluated soluble molecules in cell culture supernatants. The C allele in TLR2 (rs3804099, rs3804100) is not associated with a risk of severe COVID-19; however, the presence of the C allele (rs3804099 or rs3804100) affects the TLR-2 ability to respond to a spike of SARS-CoV-2 correctly. The reference group (genotype TT) downregulated the frequency of non-switched TLR-2+ B cells in response to spike stimulus; however, the allele's C carriers group is unable to induce this regulation, but they produce high levels of IL-10, IL-6, and TNF-α by an independent pathway of TLR-2. Findings showed that TT genotypes (rs3804099 and rs3804100) affect the non-switched TLR-2+ B cell distribution. Genotype TT (rs3804099 and rs3804100) affects the TLR-2's ability to respond to a spike of SARS-CoV-2. However, the C allele had increased IL-10, IL-6, and TNF-α by stimulation with spike and LPS.

Ciclesonide inhaler for post-acute COVID-19 syndrome: promisingclinical evidence

Ciclesonide inhaler for post-acute COVID-19 syndrome: promisingclinical evidence

CE-MS-Based Clinical Metabolomics of Human Plasma.

Capillary electrophoresis coupled to mass spectrometry (CE-MS) has emerged as a powerful analytical technique with significant implications for clinical research and diagnostics. The integration of information from CE and MS strengthens confidence in the identification of compounds present in clinical samples. The ability of CE to separate molecules based on their electrophoretic mobility coupled to MS enables the accurate identification and quantification of analytes, even in complex biological matrices such as human plasma.Here, we present a detailed protocol for an untargeted metabolomics study using CE-MS and its application in a study on human plasma from patients suffering Long COVID syndrome. The protocol ranges from sample preparation to biological interpretation, detailing a workflow enabling the analysis of cationic and anionic compounds, metabolite identification, and data processing.

Mechanisms of visual impairment in COVID-19 and post-COVID syndrome: TRP channels as pathogenetic targets and objects of therapy

Mechanisms of visual impairment in COVID-19 and post-COVID syndrome: TRP channels as pathogenetic targets and objects of therapy

Post-acute COVID-19 syndrome: prevalence of peripheral microvascular endothelial dysfunction and associations with NT-proBNP dynamics

BackgroundPost-acute COVID-19 syndrome (PACS) has been linked to microvascular endothelial dysfunction as a potential underlying pathomechanism and can manifest even following a mild course of the initial infection. Prevalence of microvascular endothelial dysfunction and circulating natriuretic peptides in such PACS patients remains unknown. Methods and resultsThis prospective, cross-sectional cohort study enrolled 92 patients (82% females, median age 48 years) with PACS. Reactive hyperemia index (RHI) was evaluated with peripheral arterial tonometry where <1.67 was defined as microvascular endothelial dysfunction, 1.67-2.0 impaired- and >2 normal endothelial function, on average 31 months after the acute infection. N-terminal pro-B-type natriuretic peptide (NT-proBNP) levels were collected at two different time points within over 1-year span. In total, 41% of PACS subjects had microvascular endothelial dysfunction and 20% had impaired RHI. No major differences in clinical characteristics, routine chemistry laboratory testing or symptom burden were observed across the groups. Only subjects with microvascular endothelial dysfunction and impaired endothelial function had a significant increase in NT-proBNP levels over time and those with larger increase in NT-proBNP had significantly lower RHI. There was a significant correlation between relative or absolute increase in NT-proBNP and RHI, which remained significant in a multivariable adjusted linear regression. ConclusionsPeripheral microvascular endothelial dysfunction was prevalent in a symptomatic PACS population long after recovery from a mild acute infection. Increases in NT-proBNP levels were associated with microvascular endothelial dysfunction, suggesting a link between and providing a foundation for future studies on post viral microvascular endothelial dysfunction in PACS.

The Bidirectional Association Between Metabolic Syndrome and Long-COVID-19.

The rapid global spread of a new coronavirus disease known as COVID-19has led to a significant increase in mortality rates, resulting in an unprecedented worldwide pandemic. The impact of COVID-19, particularly its long-term effects, has also had a profound effect on the health and well-being of individuals.Metabolic syndrome increases the risk of heart and brain diseases, presenting a significant danger to human well-being. The prognosis of long COVID and the progression of metabolic syndrome interact with each other, but there is currently a lack of systematic reports.In this paper, the pathogenesis, related treatment and prognosis of long COVID and metabolic syndrome are systematically reviewed.