Hyaluronan-coated Prussian blue nanoparticles relieve LPS-induced peritonitis by suppressing oxidative species generation in tissue-resident macrophages

2022 ◽  
Author(s):  
Ansuja Pulickal Mathew ◽  
Santhosh Kalash Rajendrakumar ◽  
Adityanarayan Mohapatra ◽  
Arathy Vasukutty ◽  
Vishnu Revuri ◽  
...  
Keyword(s):  
Inflammatory Response ◽  
Prussian Blue ◽  
Organ Failure ◽  
Inflammatory Responses ◽  
Bacterial Endotoxin ◽  
Irreversible Damage ◽  
Multi Organ Failure ◽  
Prussian Blue Nanoparticles ◽  
Oxidative Species ◽  
Excessive Inflammatory Response

Excessive inflammatory response during sepsis causes irreversible damage to healthy tissues and results in multi-organ failure. During infection, bacterial endotoxin-triggered inflammatory responses in macrophages facilitate the recruitment of circulating leukocytes,...

scholarly journals dl-2-Hydroxyisocaproic Acid Attenuates Inflammatory Responses in a Murine Candida albicans Biofilm Model

2014 ◽  
Vol 21 (9) ◽  
pp. 1240-1245 ◽  
Author(s):  
M. T. Nieminen ◽  
M. Hernandez ◽  
L. Novak-Frazer ◽  
H. Kuula ◽  
G. Ramage ◽  
...  
Keyword(s):  
Candida Albicans ◽  
Inflammatory Response ◽  
Chronic Wounds ◽  
Inflammatory Responses ◽  
Therapeutic Potential ◽  
Histopathological Examination ◽  
Mouse Skin ◽  
Irreversible Damage ◽  
Content Type ◽  
Anti Inflammatory

ABSTRACTChronic biofilm infections are often accompanied by a chronic inflammatory response, leading to impaired healing and increased, irreversible damage to host tissues. Biofilm formation is a major virulence factor forCandida albicansand a challenge for treatment. Most current antifungals have proved ineffective in eradicating infections attributed to biofilms. The biofilm structure protectsCandidaspecies against antifungals and provides a way for them to evade host immune systems. This leads to a very distinct inflammatory response compared to that seen in planktonic infections. Previously, we showed the superior efficacy ofdl-2-hydroxyisocaproic acid (HICA) against various bacteria and fungi. However, the immunomodulatory properties of HICA have not been studied. Our aim was to investigate the potential anti-inflammatory response to HICAin vivo. We hypothesized that HICA reduces the levels of immune mediators and attenuates the inflammatory response. In a murine model, a robust biofilm was formed for 5 days in a diffusion chamber implanted underneath mouse skin. The biofilm was treated for 12 h with HICA, while caspofungin and phosphate-buffered saline (PBS) were used as controls. The pathophysiology and immunoexpression in the tissues surrounding the chamber were determined by immunohistochemistry. Histopathological examination showed an attenuated inflammatory response together with reduced expression of matrix metalloproteinase 9 (MMP-9) and myeloperoxidase (MPO) compared to those of chambers containing caspofungin and PBS. Interestingly, the expression of developmental endothelial locus 1 (Del-1), an antagonist of neutrophil extravasation, increased after treatment with HICA. Considering its anti-inflammatory and antimicrobial activity, HICA may have enormous therapeutic potential in the treatment of chronic biofilm infections and inflammation, such as those seen with chronic wounds.

Continuous Hemoadsorption with a Cytokine Adsorber during Sepsis – a Review of the Literature

2017 ◽  
Vol 40 (5) ◽  
pp. 205-211 ◽  
Author(s):  
Khosrow S. Houschyar ◽  
Malcolm N. Pyles ◽  
Susanne Rein ◽  
Ina Nietzschmann ◽  
Dominik Duscher ◽  
...  
Keyword(s):  
Critical Illness ◽  
Inflammatory Response ◽  
Organ Failure ◽  
Inflammatory Cytokines ◽  
Inflammatory Responses ◽  
Experimental Studies ◽  
Complement Factor ◽  
Necrosis Factor Alpha ◽  
Tissue Ischemia ◽  
Tnf Α

Sepsis is a well-recognized healthcare issue worldwide, ultimately resulting in significant mortality, morbidity and resource utilization during and after critical illness. In its most severe form, sepsis causes multi-organ dysfunction that produces a state of critical illness characterized by severe immune dysfunction and catabolism. Sepsis induces the activation of complement factor via 3 pathways and the release of inflammatory cytokines such as tumor necrosis factor alpha (TNF-α) and interleukin-1beta (IL-1β), resulting in a systemic inflammatory response. The inflammatory cytokines and nitric oxide release induced by sepsis decrease systemic vascular resistance, resulting in profound hypotension. The combination of hypotension and microvascular occlusion results in tissue ischemia and ultimately leads to multiple organ failure. Several clinical and experimental studies have reported that treatment using adsorption of cytokines is beneficial during endotoxemia and sepsis. This review article analyzes the efficacy of CytoSorb® adsorber in reducing the inflammatory response during sepsis. The CytoSorb® adsorber is known to have excellent adsorption rates for inflammatory cytokines such as IL-1β, IL-6, IL-8, IL-10, and TNF-α. Studies have demonstrated that treatment with cytokine adsorbing columns has beneficial effects on the survival rate and inflammatory responses in animal septic models. Additionally, several cases have been reported in which treatment with cytokine adsorbing columns is very effective in hemodynamic stabilization and in preventing organ failure in critically ill patients. Although further investigations and clinical trials are needed, treatment with cytokine adsorbing columns may play an important role in the treatment of sepsis in the near future.

scholarly journals Besaran Neutrofil dan Kadar C-reactive Protein sebagai Faktor Prognostik Multi Organ Failure pada Pasien Multi-trauma

2017 ◽  
Vol 9 (3) ◽  
Author(s):  
Candy . ◽  
Heber B. Sapan ◽  
Laurens T. B. Kalesaran ◽  
Ferry Kalitouw
Keyword(s):  
Systemic Inflammatory Response Syndrome ◽  
Inflammatory Response ◽  
Organ Failure ◽  
Neutrophil Count ◽  
Correlation Study ◽  
Systemic Inflammatory Response ◽  
C Reactive Protein ◽  
Cross Sectional ◽  
Reactive Protein ◽  
Multi Organ Failure

Abstract: Trauma is the leading cause of death among people under 50 years old worldwide. Severe trauma will trigger systemic inflammatory response syndrome (SIRS) which can worsen into multiple organ failure MOF). This study was aimed to evaluate whether there was a correlation between neutrophil count and C reactive protein concentration in multi-traumatic patients and whether both variables could become predictors of the occurence of MOF. This was a correlation study with a cross sectional design. There were 71 multitraumatic patients enrolled in this study, obtained from Surgery Emergency Unit of Prof. Dr. R. D. Kandou Hospital Manado; 31 of them were associated with SIRS, MODS, and MOF. The regression analysis showed that the higher the neutrophil count was, the greater the chance of the patient to suffer from MOF (P < 0.001), as well as the higher the CRP concentration, the greater the chance of the patient to suffer from MOF (P < 0.001). The cut-off point of neutrophil to MOF was 17121.7 and the specifity was higher than the sensitivity. Morover, the cut-off point of CRP to MOF was 169.7 and the specifity was higher than the sensitivity. Conclusion: There were significant correlations between the neutrophil count and MOF as well as between CRP concentration and MOF. Neutrophil count and CRP concentration could become predictors of the occurence of MOF and were significant in sensitivity and specifity in acute multi-traumatic patients.Keywords: multiple trauma, MOF, neutrophil, CRPAbstrak: Trauma merupakan penyebab kematian nomor satu pada orang berusia kurang dari 50 tahun. Trauma berat akan memicu timbulnya respons inflamasi sistemik berat (Systemic Inflammatory Response Syndrome, SIRS) yang dapat memburuk menjadi kegagalan multi-organ. Penelitian ini bertujuan untuk mengetahui ada tidaknya korelasi antara besaran neutrofil dan kadar CRP pada pasien multi-trauma, dan apakah keduanya dapat digunakan sebagai faktor prediktor dalam mendeteksi terjadinya multi-organ failure (MOF). Jenis penelitian ialah korelasi dengan desain potong lintang. Hasil penelitian mendapatkan 71 pasien multi-trauma yang dirawat di Instalasi Gawat Darurat Bedah RSUP Prof. Dr. R. D. Kandou Manado; 31 di antaranya disertai SIRS, MODS dan MOF. Hasil analisis regresi menyatakan bahwa makin tinggi besaran neutrofil maka makin besar peluang pasien untuk terjadi MOF (P < 0,001), dan makin tinggi CRP maka makin besar peluang pasien untuk terjadi MOF (P < 0,001). Cut-off point neutrofil terhadap MOF ialah 17121,7 dengan nilai spesifisitas lebih besar dari sensitivitas sedangkan cut-off point CRP terhadap MOF ialah 169,7 dengan nilai spesifisitas lebih besar dari sensitivitas. Simpulan: Terdapat hubungan bermakna antara besaran neutrofil dan MOF serta antara CRP dan MOF. Besaran neutrofil dan CRP merupakan prediktor terjadinya MOF yang mempunyai signifikansi dalam sensitivitas dan spesifisitas pada pasien dengan multi- trauma akut.Kata kunci: multi-trauma, MOF, neutrofil, CRP

Thirty-eight-negative-kinase-1 is a major mediator of trauma-induced intestinal injury and multi-organ failure

2018 ◽  
Vol 56 (08) ◽  
pp. e205-e206
Author(s):  
M Armacki ◽  
AK Trugenberger ◽  
A Ellwanger ◽  
T Eiseler ◽  
L Bettac ◽  
...  
Keyword(s):  
Organ Failure ◽  
Intestinal Injury ◽  
Multi Organ Failure ◽  
Major Mediator

scholarly journals Organotrialkoxysilane-Functionalized Prussian Blue Nanoparticles-Mediated Fluorescence Sensing of Arsenic(III)

Nanomaterials ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1145
Author(s):  
Prem. C. Pandey ◽  
Shubhangi Shukla ◽  
Roger J. Narayan
Keyword(s):  
Prussian Blue ◽  
Chemical Reduction ◽  
Low Cost ◽  
Three Dimensional ◽  
Heterogeneous Systems ◽  
Lattice Points ◽  
Radiative Energy ◽  
Fluorescence Sensing ◽  
Emission Signal ◽  
Prussian Blue Nanoparticles

Prussian blue nanoparticles (PBN) exhibit selective fluorescence quenching behavior with heavy metal ions; in addition, they possess characteristic oxidant properties both for liquid–liquid and liquid–solid interface catalysis. Here, we propose to study the detection and efficient removal of toxic arsenic(III) species by materializing these dual functions of PBN. A sophisticated PBN-sensitized fluorometric switching system for dosage-dependent detection of As3+ along with PBN-integrated SiO2 platforms as a column adsorbent for biphasic oxidation and elimination of As3+ have been developed. Colloidal PBN were obtained by a facile two-step process involving chemical reduction in the presence of 2-(3,4-epoxycyclohexyl)ethyl trimethoxysilane (EETMSi) and cyclohexanone as reducing agents, while heterogeneous systems were formulated via EETMSi, which triggered in situ growth of PBN inside the three-dimensional framework of silica gel and silica nanoparticles (SiO2). PBN-induced quenching of the emission signal was recorded with an As3+ concentration (0.05–1.6 ppm)-dependent fluorometric titration system, owing to the potential excitation window of PBN (at 480–500 nm), which ultimately restricts the radiative energy transfer. The detection limit for this arrangement is estimated around 0.025 ppm. Furthermore, the mesoporous and macroporous PBN-integrated SiO2 arrangements might act as stationary phase in chromatographic studies to significantly remove As3+. Besides physisorption, significant electron exchange between Fe3+/Fe2+ lattice points and As3+ ions enable complete conversion to less toxic As5+ ions with the repeated influx of mobile phase. PBN-integrated SiO2 matrices were successfully restored after segregating the target ions. This study indicates that PBN and PBN-integrated SiO2 platforms may enable straightforward and low-cost removal of arsenic from contaminated water.

scholarly journals Inflammation as a determinant of healing response after coronary stent implantation

2021 ◽  
Author(s):  
Dorota Ochijewicz ◽  
Mariusz Tomaniak ◽  
Grzegorz Opolski ◽  
Janusz Kochman
Keyword(s):  
Cardiovascular Disease ◽  
High Risk ◽  
Inflammatory Response ◽  
Percutaneous Coronary Interventions ◽  
Coronary Stent Implantation ◽  
Percutaneous Coronary ◽  
Prevention And Treatment ◽  
Risk Patients ◽  
Excessive Inflammatory Response

AbstractCardiovascular disease remains the leading cause of death and morbidity worldwide. Inflammation plays an important role in the development of atherosclerosis and is associated with adverse clinical outcomes in patients after percutaneous coronary interventions. Data on stent elements that lead to excessive inflammatory response, proper identification of high–risk patients, prevention and treatment targeting residual inflammatory risk are limited. This review aims to present the role of inflammation in the context of evolving stent technologies and appraise the potential imaging modalities in detection of inflammatory response and anti-inflammatory therapies.

scholarly journals Simultaneous Occurrence of Choriocarcinoma in an Infant and Mother

2021 ◽  
Vol 18 (4) ◽  
pp. 1934
Author(s):  
Małgorzata Rzanny-Owczarzak ◽  
Joanna Sawicka-Metkowska ◽  
Katarzyna Jończyk-Potoczna ◽  
Ewelina Gowin ◽  
Patrycja Sosnowska-Sienkiewicz ◽  
...  
Keyword(s):  
Rare Disease ◽  
Organ Failure ◽  
Liver Tumor ◽  
Serum Levels ◽  
Simultaneous Occurrence ◽  
Positive History ◽  
Multi Organ Failure ◽  
History Of

Infantile choriocarcinoma is an extremely rare disease. We present a case study of a 1-month-old male with choriocarcinoma diagnosed simultaneously with his mother. On admission to hospital, the disease was very advanced and massive progression and multi-organ failure caused the death of the patient despite the implemented treatment. It was too late to save the child’s life, but early enough to save his mother. The authors believe that the serum levels of hCG should be determined in every newborn with anemia and liver tumor, especially when the mother has a positive history of miscarriage.

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