Safety Assessment of Co-Administered SARS-CoV-2 Vaccines in BALB/c Mice DOI Open Access
Jonas Nshimirimana, Josephine Kimani, James Kimotho

et al.

International Journal of Innovative Science and Research Technology (IJISRT), Journal Year: 2024, Volume and Issue: unknown, P. 2585 - 2591

Published: June 11, 2024

The onset of Coronavirus disease 2019 (COVID-19) in late presented a severe worldwide health crisis with widespread morbidity and mortality. Various vaccine platforms have been rapidly developed approved for broad use swift urgent response to prevent the transmission Severe Acute Respiratory Syndrome 2 (SARS-CoV-2) infection. However, these vaccines differ significantly terms safety. Heterologous prime-boost vaccination enhances safety compared homologous vaccination, although it could lead higher cumulative number transient adverse events reported at each visit. Therefore, additional strategies are necessary improve SARS- CoV-2 Anecdotal options suggest that co-administration can reduce effects consequently, avert need frequent booster doses. This study reports immunization outcomes against SARS-CoV-2 virus by assessing profiles different co-administered BALB/c mice. Vaccine combinations comprising mRNA/adenovirus26-vector, mRNA/inactivated, adenovirus26-vector/inactivated, mRNA/adenovirus26-vector/inactivated were prepared optimized doses, their activities upon evaluated comparison individual mRNA, adenovirus26-vectored inactivated vaccines. Twenty-eight days post-immunization, various treatments through hematological biochemical examination. Importantly, regimens proved safe well-tolerated mice, as evidenced normal values.

Language: Английский

Revolutionizing Neurocare: Biomimetic Nanodelivery Via Cell Membranes DOI
Jun Liao, Lidong Gong,

Qingqiang Xu

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(26)

Published: April 7, 2024

Abstract Brain disorders represent a significant challenge in medical science due to the formidable blood–brain barrier (BBB), which severely limits penetration of conventional therapeutics, hindering effective treatment strategies. This review delves into innovative realm biomimetic nanodelivery systems, including stem cell‐derived nanoghosts, tumor cell membrane‐coated nanoparticles, and erythrocyte membrane‐based carriers, highlighting their potential circumvent BBB's restrictions. By mimicking native properties, these nanocarriers emerge as promising solution for enhancing drug delivery brain, offering strategic advantage overcoming barrier's selective permeability. The unique benefits leveraging membranes from various sources is evaluated advanced technologies fabricating membrane‐encapsulated nanoparticles capable masquerading endogenous cells are examined. enables targeted broad spectrum therapeutic agents, ranging small molecule drugs proteins, thereby providing an approach neurocare. Further, contrasts capabilities limitations with traditional methods, underlining enable targeted, sustained, minimally invasive modalities. concluded perspective on clinical translation underscoring transformative impact landscape intractable brain diseases.

Language: Английский

Citations

30

Intracellular communication and immunothrombosis in sepsis DOI Creative Commons
Toshiaki Iba, Marcel Levi, Jerrold H. Levy

et al.

Journal of Thrombosis and Haemostasis, Journal Year: 2022, Volume and Issue: 20(11), P. 2475 - 2484

Published: Aug. 18, 2022

Abstract

Inflammation and coagulation are the critical responses to infection that include leukocytes, platelets, vascular endothelial cells responding in concert eradicate invading pathogen. In sepsis, a variety of cell surface receptors, including toll‐like Fcγ‐receptors, G‐protein‐coupled adhesion detect pathogens elicit thromboinflammatory responses. Concurrently, molecular patterns released from host damaged accelerate immune through binding same pattern recognition receptors. Cytokines, chemokines, extracellular vesicles important mediators for amplifying distant as part systemic response infections. At time, communicate with each other via direct contact, molecules, paracrine mediators, tunneling nanotubes, which regulating inflammation thrombus formation. Despite increasing attention immunothrombosis these close communication systems less understood but play role defense mechanisms. this review, cellular activation intercellular sepsis focus on will be considered.

Language: Английский

Citations

47

Immune Response and Molecular Mechanisms of Cardiovascular Adverse Effects of Spike Proteins from SARS-CoV-2 and mRNA Vaccines DOI Creative Commons
Paolo Bellavite, Alessandra Ferraresi, Ciro Isidoro

et al.

Biomedicines, Journal Year: 2023, Volume and Issue: 11(2), P. 451 - 451

Published: Feb. 3, 2023

The SARS-CoV-2 (severe acute respiratory syndrome coronavirus responsible for the COVID-19 disease) uses Spike proteins of its envelope infecting target cells expressing on membrane angiotensin converting enzyme 2 (ACE2) that acts as a receptor. To control pandemic, genetically engineered vaccines have been designed inducing neutralizing antibodies against proteins. These do not act like traditional protein-based vaccines, they deliver message in form mRNA or DNA to host then produce and expose protein (from which it can be shed soluble form) alert immune system. Mass vaccination has brought light various adverse effects associated with these based mainly affecting circulatory cardiovascular ACE2 is present membrane-bound several cell types, including mucosa upper gastrointestinal tracts, endothelium, platelets, plasma. converts vasoconstrictor II into peptides vasodilator properties. Here we review pathways immunization molecular mechanisms through protein, either from encoded by mRNA-based interferes Renin-Angiotensin-System governed ACE2, thus altering homeostasis circulation Understanding interactions consequent impact system will direct diagnosis therapy vaccine-related provide information development personalized considers pathophysiological conditions predisposing such events.

Language: Английский

Citations

30

The Aftermath of COVID-19: Exploring the Long-Term Effects on Organ Systems DOI Creative Commons

Maryam Golzardi,

Altijana Hromić‐Jahjefendić, Jasmin Šutković

et al.

Biomedicines, Journal Year: 2024, Volume and Issue: 12(4), P. 913 - 913

Published: April 20, 2024

Background: Post-acute sequelae of SARS-CoV-2 infection (PASC) is a complicated disease that affects millions people all over the world. Previous studies have shown PASC impacts 10% infected patients which 50–70% are hospitalised. It has also been 10–12% those vaccinated against COVID-19 were affected by and its complications. The severity later development symptoms positively associated with early intensity infection. Results: generated health complications caused involve vast variety organ systems. Patients diagnosed neuropsychiatric neurological symptoms. cardiovascular system involved several diseases such as myocarditis, pericarditis, coronary artery reported. Chronic hematological problems thrombotic endothelialitis hypercoagulability described conditions could increase risk clotting disorders coagulopathy in patients. Chest pain, breathlessness, cough respiratory long-COVID causing distress syndrome. observed immune notable, involving diseases. renal was impacted, resulted raising issues, fibrosis, sepsis. Endocrine gland malfunction can lead to diabetes, thyroiditis, male infertility. Symptoms diarrhea, nausea, loss appetite, taste among reported observations due gastrointestinal disorders. Skin abnormalities might be an indication long-term implications persistent cutaneous complaints linked PASC. Conclusions: Long-COVID multidimensional syndrome considerable public implications, affecting physiological systems demanding thorough medical therapy, more study address underlying causes effects needed.

Language: Английский

Citations

6

SARS-CoV-2 and COVID-19: A Narrative Review DOI Creative Commons

Andrew D. Blann,

Rebekka Heitmar

British Journal of Biomedical Science, Journal Year: 2022, Volume and Issue: 79

Published: Sept. 6, 2022

The World Health Organisation has reported that the viral disease known as COVID-19, caused by SARS-CoV-2, is leading cause of death a single infectious agent. This narrative review examines certain components pandemic: its origins, early clinical data, global and UK-focussed epidemiology, vaccination, variants, long COVID.

Language: Английский

Citations

26

Potential mechanisms of vaccine-induced thrombosis DOI Open Access
Marco Marietta,

Valeria Coluccio,

Mario Luppi

et al.

European Journal of Internal Medicine, Journal Year: 2022, Volume and Issue: 105, P. 1 - 7

Published: Aug. 8, 2022

Language: Английский

Citations

21

Thromboembolic Events in the Era of COVID‐19: A Detailed Narrative Review DOI Creative Commons
Manal Mansour, Christophe El Rassi, Bshara Sleem

et al.

Canadian Journal of Infectious Diseases and Medical Microbiology, Journal Year: 2025, Volume and Issue: 2025(1)

Published: Jan. 1, 2025

COVID-19, caused by the SARS-CoV-2 virus, is not only characterized respiratory symptoms but also associated with a wide range of systemic complications, including significant hematologic abnormalities. This comprehensive review current literature, using PubMed and Google Scholar, on pathophysiology incidence thromboembolic events in COVID-19 patients thromboprophylaxis. infection induces prothrombotic state through dysregulation renin-angiotensin-aldosterone system (RAAS), endothelial dysfunction, elevated von Willebrand factor (vWF), dysregulated immune response involving complement neutrophil extracellular traps (NETs). As result, complications have emerged cases, occurring more frequently severe cases hospitalized patients. These thrombotic affect both venous arterial circulation, increased incidences deep thrombosis (DVT), pulmonary embolism (PE), thrombosis, myocardial infarction (MI). While DVT PE are common, literature highlights potential lethal consequences thromboembolism (ATE). briefly examines ongoing discussions regarding use anticoagulants for prevention theoretically promising, studies yielded varied outcomes: Some suggest benefits, whereas others report an risk bleeding among Therefore, further large-scale needed to assess efficacy safety thromboprophylaxis

Language: Английский

Citations

0

A typical presentation of previable HELLP syndrome: a case report DOI Creative Commons

Derar I I Ismerat,

Barah Alsalameh,

Raneen T M Farash

et al.

Journal of Surgical Case Reports, Journal Year: 2025, Volume and Issue: 2025(4)

Published: March 29, 2025

Abstract The rare condition known as HELLP syndrome is typified by hemolysis, low platelet counts, and high liver enzymes. We report a case of 25-year-old primigravida who presented at previable gestational age with nonspecific symptoms. She was diagnosed hepatic infarction, but severe complication syndrome, managed promptly to prevent maternal morbidity mortality.

Language: Английский

Citations

0

Fright of Long-Haul Flights: Focus on Travel-Associated Thrombosis DOI

E. Papadakis,

Eleni Gavriilaki, Nikolaos Kotsiou

et al.

Seminars in Thrombosis and Hemostasis, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 27, 2025

Abstract Travel-related thrombosis (TRT), encompassing deep vein (DVT) and pulmonary embolism (PE), poses a significant health risk associated with long-haul travel. Prolonged immobility, dehydration, cabin pressure changes during flights contribute to venous stasis, hypoxia, hypercoagulability, collectively increasing the of thromboembolism (VTE). While absolute TRT is relatively low in population overall, it rises significantly among high-risk groups, including individuals history VTE, thrombophilia, pregnancy, or recent surgery. This review explores epidemiology, pathophysiology, clinical presentation, diagnostic evaluation while highlighting importance early recognition prevention. Risk assessment models can provide guidance for identifying at-risk travelers. Preventive strategies include pharmacological prophylaxis low-molecular-weight heparin (LMWH) nonpharmacological measures such as compression stockings, intermittent pneumatic compression, mobility exercises, hydration. Guidelines from international societies recommend tailored interventions based on individual profiles, randomized controlled trials are scarce. Given that travel dramatically expands, this critically analyzes available management various settings, aiming increase awareness global issue.

Language: Английский

Citations

0

Cardiovascular Sequelae of the COVID-19 Vaccines DOI Open Access

James N. Nitz,

Klaus W. Ruprecht,

Lukas J. Henjum

et al.

Cureus, Journal Year: 2025, Volume and Issue: unknown

Published: April 10, 2025

Language: Английский

Citations

0