scholarly journals Local Inflammation in Fracture Hematoma: Results from a Combined Trauma Model in Pigs

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
K. Horst ◽  
D. Eschbach ◽  
R. Pfeifer ◽  
S. Hübenthal ◽  
M. Sassen ◽  
...  
Keyword(s):  
Inflammatory Response ◽  
Time Course ◽  
Small Animal ◽  
Systemic Inflammatory Response ◽  
Large Animal Model ◽  
Large Animal ◽  
Local Inflammation ◽  
Statistical Significant Difference ◽  
Significant Difference ◽  
Trauma Model

Background. Previous studies showed significant interaction between the local and systemic inflammatory response after severe trauma in small animal models. The purpose of this study was to establish a new combined trauma model in pigs to investigate fracture-associated local inflammation and gain information about the early inflammatory stages after polytrauma.Material and Methods. Combined trauma consisted of tibial fracture, lung contusion, liver laceration, and controlled hemorrhage. Animals were mechanically ventilated and under ICU-monitoring for 48 h. Blood and fracture hematoma samples were collected during the time course of the study. Local and systemic levels of serum cytokines and diverse alarmins were measured by ELISA kit.Results. A statistical significant difference in the systemic serum values of IL-6 and HMGB1 was observed when compared to the sham. Moreover, there was a statistical significant difference in the serum values of the fracture hematoma of IL-6, IL-8, IL-10, and HMGB1 when compared to the systemic inflammatory response. However a decrease of local proinflammatory concentrations was observed while anti-inflammatory mediators increased.Conclusion. Our data showed a time-dependent activation of the local and systemic inflammatory response. Indeed it is the first study focusing on the local and systemic inflammatory response to multiple-trauma in a large animal model.

Abstract 657: A New Translational Model of Hypercholesterolemia and Atherosclerosis: Effect of Statins on LDLR KO Miniature Swine

2014 ◽  
Vol 34 (suppl_1) ◽  
Author(s):  
Dale E Mais ◽  
Thomas Vihtelic ◽  
Chidozie Amuzie ◽  
Steven Denham ◽  
John R Swart ◽  
...  
Keyword(s):  
High Fat Diet ◽  
Clinical Chemistry ◽  
Small Animal ◽  
Normal Diet ◽  
Large Animal Model ◽  
Control Group ◽  
Large Animal ◽  
Wild Type ◽  
High Fat ◽  
Miniature Swine

Small animal models of atherosclerosis are commonly used in drug studies; however, the results often fail to translate into the clinic. A large animal model that more accurately reflects the human disease is needed. We recently developed a transgenic Yucatan pig model in which the LDL receptor (LDLR) gene is knocked out. Five groups of Yucatan pigs (N=4 per group), either wild type (LDLR+/+) or heterozygote (LDLR+/-) were fed a normal diet or a high fat diet for a six month period. One of the heterozygote/high fat diet groups in addition received a daily dose of a statin (atorvastatin) at 3 mg/kg. Every two weeks during the study a variety of clinical chemistry parameters were measured. At study termination, select arteries were collected, stained for lipid deposits and quantitated. In addition, sections of these arteries were prepared for immunohistochemistry to detect selected markers of macrophage infiltration into the atherosclerotic plaques. As expected, pigs fed a high fat diet gained significantly more weight at six months whether they were wild type or LDLR+/-. Atorvastatin appeared to attenuate this weight gain. There were significant increases in total cholesterol, HDL and LDL in pigs fed the high fat diet compared to their corresponding control group. The group receiving the atorvastatin had reduced values of these parameters compared to controls showing that a statin had a beneficial effect on lipid levels even in a high fat diet scenario. VLDL levels were not affected but there were triglyceride changes across the groups. Liver function was unchanged based on total bilirubin and AST while ALT measurements were altered in some of the groups. Immunohistochemistry and histomorphometry was performed on some arteries. Atorvastatin-induced amelioration of hypercholesterolemia in this model underscores its translational utility.

Abstract 11053: The Association Between the Systemic Immune-Inflammation Index with the Duration of Cardiopulmonary Bypass in Cardiac Surgery: A Retrospective, Single-Center Study

Circulation ◽  
2021 ◽  
Vol 144 (Suppl_2) ◽  
Author(s):  
Yanan Hu ◽  
Yi Liu ◽  
Yongzhe Liu ◽  
Hui Chen ◽  
Wei Jiang ◽  
...  
Keyword(s):  
Cardiac Surgery ◽  
Inflammatory Response ◽  
Hospital Stay ◽  
Time Course ◽  
Ischemia Reperfusion ◽  
Systemic Inflammatory Response ◽  
Surgical Trauma ◽  
Neutrophil Lymphocyte Ratio ◽  
Lymphocyte Ratio ◽  
Immune Inflammation

Introduction: Systemic inflammatory response evoked by cardiac surgery involving a cardio-pulmonary bypass (CPB) in combination of surgical trauma, ischemia/reperfusion injury, hypothermia, and endotoxin release contributed to the postoperative morbidity and mortality. This study aimed to explore the potential of neutrophil-lymphocyte ratio (NLR), platelet-lymphocyte ratio (PLR), and systemic immune-inflammation index (SII) as novel markers to evaluate and predict the adverse clinical outcomes after longer CPB time in cardiac surgery. Methods: Patients who underwent cardiac surgery with or without CPB were allocated into two groups, CPB group (n=11) and N-CPB group (n=21). The time course of NLR, PLR, SII, and C-reactive protein (CPR) were analyzed at preoperative day 1 and postoperative day 1, 3, and 7. The baseline and postoperative parameters, the ICU and hospital stay were recorded. Results: There were no differences of baseline parameters between groups. The level of NLR, PLR, SII, and CPR at postoperative day 1 was higher than that in the preoperative day 1 in both groups (p < 0.01). The level of NLR, SII and CPR at postoperative day 3 was higher than that in the preoperative day 1 in both groups (p < 0.05). The NLR and SII at postoperative day 3 were higher in CPB group than that in N-CPB group (p < 0.05). The ICU and hospital stay was longer in CPB group than N-CPB group (p < 0.05). Conclusions: The longer duration of CPB time induced higher systemic inflammatory response characterized by higher level of NLR, PLR and SII. The SII predicted the poor outcome after longer CPB. The peak of systemic inflammatory response occurred on the third day after cardiac surgery.

scholarly journals Anti-inflammatory response of IL-4, IL-10 and TGF-β in patients with systemic inflammatory response syndrome

2000 ◽  
Vol 9 (3-4) ◽  
pp. 193-195 ◽  
Author(s):  
Donato Torre ◽  
Roberto Tambini ◽  
Silvana Aristodemo ◽  
Giovanna Gavazzeni ◽  
Antonio Goglio ◽  
...  
Keyword(s):  
Systemic Inflammatory Response Syndrome ◽  
Inflammatory Response ◽  
Transforming Growth Factor Beta ◽  
Transforming Growth Factor ◽  
Serum Levels ◽  
Interleukin 10 ◽  
Systemic Inflammatory Response ◽  
Interleukin 4 ◽  
Significant Difference ◽  
Anti Inflammatory

The systemic inflammatory response syndrome (SIRS) is an inflammatory process seen in association with a large number of clinical infective and noninfective conditions.The aim of this study was to investigate the role of anti-inflammatory cytokines such as interleukin–4 (IL–4), interleukin–10 (IL–10), and transforming growth factor-beta (TGF-beta). Serum levels of IL–4, IL–10 and TGF-β were determined in 45 patients with SIRS: 38 patients had SIRS of infectious origin, whereas seven patients had non-infectious SIRS. Twenty healthy subjects were used as controls.Serum levels of IL–4, IL–10 and TGFg were determined by an immunoenzyme assay. A significant increase of IL–4 was observed in these patients at the time of diagnosis and 5 days later. In contrast, serum levels of IL–10 were not increased at the time of diagnosis, but a slight decrease was noted after 5 days. Serum levels of TGF-β were not increased at time of diagnosis, and a slight increase was observed after 5 days. Serum levels of IL–4 were significantly higher in patients with infectious SIRS at the time of diagnosis, whereas no significant difference between infectious and non-infectious SIRS was noted for serum levels of IL–10 and TGF-β at the time of diagnosis and 5 days later.During SIRS, serum levels of IL–4 were significantly increased with a significant correlation between IL–4 and mortality, and only levels of IL–4 were significantly increased in the SIRS caused by infectious stimuli.

scholarly journals A CFA-Induced Model of Inflammatory Skin Disease in Miniature Swine

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Nalú Navarro-Alvarez ◽  
Beatriz M. M. Gonçalves ◽  
Alec R. Andrews ◽  
David H. Sachs ◽  
Christene A. Huang
Keyword(s):  
Animal Model ◽  
Inflammatory Response ◽  
Skin Disease ◽  
Pain Medication ◽  
Abnormal Behavior ◽  
Large Animal Model ◽  
Large Animal ◽  
Late Time ◽  
Inflammatory Skin Disease ◽  
Inflammatory Skin

Similarities between porcine and human skin make the pig an ideal model for preclinical studies of cutaneous inflammation and wound healing. Complete Freund’s adjuvant (CFA) has been used to induce inflammation and to study inflammatory pain in several animal models. Here, we evaluated the inflammation caused by CFA injected in different layers of skin and subcutaneous (SC) tissue in a large-animal model. The degree of inflammation was evaluated at early and late time points by visual inspection and histopathologic analysis. In addition, the side effects of CFA injections were evaluated based on clinical findings, behavioral changes, physiologic state, and (histo)pathologic lesions. Pigs were injected with CFA at the back of the neck’s skin at different depths. All animals showed histologic signs of inflammation at the injection site. Animals injected SC did not show any signs of pain or distress (loss of appetite, abnormal behavior) and did not require pain medication. Inflammation was followed by measuring the area of induration beneath the skin. Animals injected into the dermis and/or epidermis demonstrated a severe inflammatory response on the skin surface with massive swelling, redness within 12hrs of CFA injection, and severe skin necrosis within a week, preventing accurate induration measurements. In contrast to animals injected SC, animals receiving intradermal and/or intraepidermal injection of CFA showed signs of distress requiring pain medication. Conclusion. SC injection of CFA in swine induces an inflammatory response that can be measured accurately by induration without causing unnecessary discomfort, providing a useful preclinical large-animal model of inflammatory skin disease.

scholarly journals The effect of the duration between urine culture and semirigid ureteroscopic on the rate of systemic inflammatory response syndrome postoperatively

2021 ◽  
Author(s):  
Fatih Akkaş ◽  
Emre Sam ◽  
Ahmet Cinislioglu ◽  
İbrahim Karabulut ◽  
Fatih Kursat Yilmazel ◽  
...  
Keyword(s):  
Systemic Inflammatory Response Syndrome ◽  
Inflammatory Response ◽  
Urine Culture ◽  
Systemic Inflammatory Response ◽  
Binary Logistic Regression Analysis ◽  
Ureteroscopic Lithotripsy ◽  
Entire Study ◽  
Significant Difference ◽  
The Impact ◽  
Bladder Urine

Purpose: The aim of this study is to analyze the preoperative and intraoperative factors that might induce systemic inflammatory response syndrome after semirigid ureteroscopic lithotripsy (SULL) , and to evaluate the impact of duration between preoperative bladder urine culture (PBUC) and surgery on postoperative systemic inflammatory response syndrome (SIRS). Methods: A retrospective review was conducted including patients who underwent SULL in our center between January 2011 and June 2020. Prior to surgery, PBUC were obtained from all patients and postoperatively patients were observed for signs of SIRS. Univariable and multivariable binary logistic regression analysis were implemented to demonstrate the factors that predict SIRS postoperatively. Results: The entire study included a cohort of 572 patients. The rate of SIRS following SULL was 1.7%. Predictive factors for SIRS were listed as stone volume, surgical time, and history of recurrent urinary tract infection. No significant difference was detected in terms of the duration between PBUC and SULL when comparing the SIRS group with the other group. Conclusion: The duration between PBUC and SULL is not an efficacious factor for SIRS. It may be useful to conduct prospective studies to enlighten this issues as endourologists deal with this duration dilemma often in daily practice. Keywords: Semirigid ureteroscopic lithotripsy, Systemic inflammatory response syndrome, Preoperative bladder urine culture

Abstract TP107: Midline Shift Predicts Functional Outcomes in Porcine Ischemic Stroke Model

Stroke ◽  
2020 ◽  
Vol 51 (Suppl_1) ◽  
Author(s):  
Samantha Spellicy ◽  
Erin Kaiser ◽  
Michael Bowler ◽  
Brian Jurgielewicz ◽  
Robin Webb ◽  
...  
Keyword(s):  
Animal Model ◽  
Ischemic Stroke ◽  
Functional Outcomes ◽  
Randomized Study ◽  
Large Animal Model ◽  
Control Group ◽  
Large Animal ◽  
Midline Shift ◽  
Post Stroke ◽  
Significant Difference

In this study, we sought to identify acute MRI parameters which are predictive of long-term functional outcomes as well as assess the effects of a neural stem cell extracellular vesicle (NSC EV) therapeutic in a large animal model of ischemic stroke. In this randomized study, stroke was induced through a permanent right-sided middle cerebral artery occlusion (MCAO) on 16 male landrace pigs, which were divided into either treatment or control group. NSC EVs or PBS was administered at 2, 14, and 24 hours, and MRI was conducted at day 1 and 84 post-stroke. Data on 65 gait and 25 behavior parameters were collected pre-stroke and at multiple timepoints over 84 days following MCAO. Of all 15 measured MRI parameters, axial and coronal midline shift (MLS), at day 1 post stroke, had the highest total number of significant correlations (52 parameters at p<0.05) to acute and chronic functional measurements in control animals such as step time in the left front limb (p=0.0322) and cycle time in the right hind limb (p=0.0011) respectively. This suggests MLS is the best overall predictor of specific functional deficits at both acute and chronic timepoints, which to our knowledge has never been shown in an animal model. Additionally, the parameters found to be correlated to MLS in control animals were not correlated in NSC EV-treated animals, suggesting NSC EV treatment disrupts this natural correlation between degree of MLS and functional outcomes. NSC EVs and control pigs were binned into either high or low MLS groups and their survival and recovery was assessed by the modified Rankin Scale (mRS). While there was a significant difference in mRS scores of control animals with high and low MLS at day 6 post-MCAO (p=0.0008), there was not in NSC EV-treated animals (p=0.6754). Further, there was a significant difference in survival of control animals with high and low axial MLS (p=0.0401), but not in the NSC EV group (p=0.4142). Additionally, mRNA expression of GFAP was significantly correlated with increasing MLS in non-treated but not NSC EV-treated animals. These findings show although NSC EV treatment does not significantly alter the degree of MLS 1-day post-MCAO, it does alter gene expression, increase survival, and improve functional recovery following large MLS alterations.

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