Appearance Of Inflammation Research Articles

Different Polymers for the Base of Removable Dentures? Part II: A Narrative Review of the Dynamics of Microbial Plaque Formation on Dentures.

This review focuses on the current disparities and gaps in research on the characteristics of the oral ecosystem of denture wearers, making a unique contribution to the literature on this topic. We aimed to synthesize the literature on the state of current knowledge concerning the biological behavior of the different polymers used in prosthetics. Whichever polymer is used in the composition of the prosthetic base (poly methyl methacrylate acrylic (PMMA), polyamide (PA), or polyether ether ketone (PEEK)), the simple presence of a removable prosthesis in the oral cavity can disturb the balance of the oral microbiota. This phenomenon is aggravated by poor oral hygiene, resulting in an increased microbial load coupled with the reduced salivation that is associated with older patients. In 15-70% of patients, this imbalance leads to the appearance of inflammation under the prosthesis (denture stomatitis, DS). DS is dependent on the equilibrium-as well as on the reciprocal, fragile, and constantly dynamic conditions-between the host and the microbiome in the oral cavity. Several local and general parameters contribute to this balance. Locally, the formation of microbial plaque on dentures (DMP) depends on the phenomena of adhesion, aggregation, and accumulation of microorganisms. To limit DMP, apart from oral and lifestyle hygiene, the prosthesis must be polished and regularly immersed in a disinfectant bath. It can also be covered with an insulating coating. In the long term, relining and maintenance of the prosthesis must also be established to control microbial proliferation. On the other hand, several general conditions specific to the host (aging; heredity; allergies; diseases such as diabetes mellitus or cardiovascular, respiratory, or digestive diseases; and immunodeficiencies) can make the management of DS difficult. Thus, the second part of this review addresses the complexity of the management of DMP depending on the polymer used. The methodology followed in this review comprised the formulation of a search strategy, definition of the inclusion and exclusion criteria, and selection of studies for analysis. The PubMed database was searched independently for pertinent studies. A total of 213 titles were retrieved from the electronic databases, and after applying the exclusion criteria, we selected 84 articles on the possible microbial interactions between the prosthesis and the oral environment, with a particular emphasis on Candida albicans.

A randomized, open-label clinical trial in mild cognitive impairment with EGb 761 examining blood markers of inflammation and oxidative stress

Although beta-amyloid (Aβ) and phosphorylated tau remain the preferred targets for disease-modifying treatments (DMT) against Alzheimer’s disease (AD), part of the pathophysiological mechanisms of cognitive impairment are related to neuroinflammation and oxidative stress. In mild cognitive impairment (MCI), a prodromal stage of AD and other neurodegenerative conditions, the joint appearance of inflammation, oxidative stress, and metabolic alterations are the common pathways of neurotoxicity and neurodegeneration. The standardized extract of Ginkgo biloba EGb 761 interferes with the pathogenic mechanisms involved in both the development of cognitive impairment due to AD and that of vascular origin. The primary objective of this study is to compare changes in the levels of blood markers of inflammation and oxidative stress after treatment with EGb 761 in a cohort of 100 patients with MCI. In addition, we aim to assess changes in these blood markers during an additional 12-month extension phase in which patients in the control group will also receive EGb 761 and patients in the active group will extend their treatment duration. Secondary objectives include comparing changes in neuropsychiatric and cognitive test scores between the baseline (v0) and 12-month visits (v2). This study is a Phase IV, single-center, randomized, open-label, parallel-group clinical trial consisting of the 12-month follow-up of a cohort of participants with MCI [Global Deterioration Scale (GDS) = 3] and an extension with an additional 12-month follow-up. During the first 12 months, participants will be randomized into two arms: in one arm, patients will receive 1 daily tablet of EGb 761 240 mg orally (study group, n = 50), while in the other arm, patients will not receive EGb 761 and will undergo the same assessments as the treated group (control group, n = 50). After the first 12 months of the study, patients in the EGb 761-treated group will continue treatment, and patients in the control group will be offered one EGb 761 240 mg tablet per day orally. All participants will be monitored for an additional 12 months. A battery of blood markers of inflammation and oxidative stress will be quantified at v0, v1, v2, v3, and v4. The Olink Proteomics panel of inflammation markers (https://www.olink.com/products/inflammation/) will be used to evaluate 92 proteins associated with inflammatory diseases and related biological processes. The second panel measures 92 proteins involved in neurological processes. At v0, v2, and v4, neuropsychological and neurological evaluations will be conducted in addition to vital signs and anthropometric studies using a body composition monitor with bioimpedance technology (Tanita). Sixty percent of the 100 MCI patients recruited were women. The mean age was 73.1 years, and the mean time between symptom onset and MCI diagnosis was 2.9 years. The mean Mini-Mental State Examination (MMSE) score was 26.7. Depressive and anxiety disorders, as well as vascular risk factors, were the most frequent comorbidities among the cohort. The study is still ongoing, and results for the first year of treatment (v0, v1, v2) are expected by 2023. Individuals with MCI have an elevated risk of developing dementia. EGb 761 is used worldwide for the symptomatic treatment of cognitive disorders due to its neuroprotective effects. In experimental models and clinical observational studies, EGb 761 has shown strong antioxidant and anti-inflammatory activity. As a result, this study has been proposed to evaluate the antioxidant and anti-inflammatory effects on plasma markers and their potential clinical correlation with the progression of cognitive decline in patients with MCI.Trial registration: Registro Español de estudios clínicos (REec) number 2020-003776-41, ClinicalTrials.gov Identifier: NCT05594355.

Role of Sirtuins in the Pathogenesis of Rheumatoid Arthritis.

Rheumatoid arthritis (RA) is an autoimmune and inflammatory disease leading to joint destruction. The causes of RA are not fully known. Most likely, the development of the disease depends on the coexistence of many factors, such as hereditary factors, immune system defects, gender, infectious agents, nicotine, and stress. Various epigenetic changes have been identified and correlated with the aggressive phenotype of RA, including the involvement of sirtuins, which are enzymes found in all living organisms. Their high content in the human body can slow down the aging processes, reduce cell death, counteract the appearance of inflammation, and regulate metabolic processes. Sirtuins can participate in several steps of RA pathogenesis. This narrative review presents, collects, and discusses the role of all sirtuins (1-7) in the pathogenesis of rheumatoid arthritis.

Cytological and microbiological examination of bovine milk in Prototheca-infected dairy herd

In healthy milk the somatic cell count (SCC) is less than 100.000 cells per mL, although in the presence of infectious agents, especially pathogenic bacteria, SCC can be extremely high. Cytological appearance of inflammation in mammary gland depends on the origin and the time-course of the inflammatory response. According to predominant cell type there can be suppurative, pyogranulomatous, granulomatous and lymphocytic inflammation. Prototheca spp. as facultative pathogen creates chronic inflammation in mammary gland with high SCC and reduced milk production. The aim of our study was to elaborate a practical and accurate laboratory procedure to enhance the precision of milk somatic cell differentiation, and to provide quick and easy-to-perform detection for the presence of infectious algae in mastitis cases. In 95 quarter samples SCC was determined by California Mastitis Test, cellular density estimation and somatic cell differentiation were carried out by microscopically evaluation, while presence of Prothoteca spp. was investigated with the help of specific culture medium (PIM agar). According to CMT results, SCC values showed 67.3% prevalence of mastitis, from which 6.3% was clinical and 93.7% subclinical. Comparing CMT results and estimated cellularity values indicated tight correlation. In CMT negative quarters 60% of somatic cells were neutrophil granulocytes, while in CMT positive but Prototheca spp. negative cases these cells were present in 74%. Interestingly in Prototheca spp. positive samples only 60.25% of cells were neutrophil granulocytes, while macrophages and lymphocytes were present in 17% and 18.3%, respectively. Moreover, remarkable cytological pattern was notified in some samples that were positive for Prototheca spp., and statistical analysis showed tight correlation between infectious algae and the ratio of macrophages (p=0.005). In conclusion laboratory techniques applied in our study seems to be helpful supplementary methods to reveal pathological background of mastitis as well as to monitor the progression of inflammatory reactions.

Peri-Ulcerative Mucosal Inflammation Appearance is an Independent Risk Factor for 30-Day Rebleeding in Patients with Gastric Ulcer Bleeding: A Multicenter Retrospective Study.

AimThe aim of this study was to identify clinical endoscopic indicators related to peri-ulcerative mucosal inflammation and to analyze whether the degree of peri-ulcerative mucosal inflammation appearance is an independent risk factor for gastric ulcer rebleeding.MethodsWe conducted a retrospective study that included patients with gastric ulcer bleeding who were hospitalized at three medical centers in China from January 1, 2016 to December 31, 2019. Ulcer rebleeding that occurred within 30 days of successful initial hemostasis was analyzed to determine whether this event was related to the degree of peri-ulcerative mucosal inflammation appearance or other mucosal inflammation-related factors.ResultsWe enrolled 1111 patients and determined that GBS-Rebleeding-ROC (P<0.001), age (P=0.01), use of NSAIDs (P=0.001), bile reflux (P<0.001), and Helicobacter pylori (P<0.001) are all risk factors for peri-ulcerative mucosal inflammation appearance. Through multivariate analysis, we determined that severe peri-ulcerative mucosal inflammation appearance (P=0.002) was an independent risk factor for ulcer rebleeding within 30 days. Finally, we developed a risk assessment model using factors associated with mucosal inflammation that may be useful for early prediction of rebleeding.ConclusionThe risk factors for peri-ulcerative mucosal inflammation appearance were identified. Severe peri-ulcerative mucosal inflammation appearance is an independent risk factor for ulcer rebleeding.

Delayed inflammatory reaction of hyaluronic acid fillers against the background of flu-like illness

Traditionally, it is considered that inflammatory reactions with delayed onset that occur due to the use of fillers based on hyaluronic acid (HA) are included in the category of rare complications. But in recent years, due to the increasing popularity of injection procedures, such reactions have become more common, which attracts the attention of both the scientific community and clinicians.&#x0D; This article presents a clinical case of a late inflammatory response, describes the diagnosis and tactics of therapy, and provides an overview of the etiology, pathogenesis, diagnosis, and therapy of such reactions. 7 months ago, HA filler was injected into the area of both tear troughs. 3 months after the procedure, the patient underwent acute respiratory viral infection, against which for the first time she noted the sudden appearance of inflammation. 3 months after the first episode of an inflammatory reaction in the tear troughs, against the background of acute pharyngitis, its relapse occurred, accompanied by similar symptoms.&#x0D; Similar inflammatory reactions can occur with any HA filler, but their frequency may vary depending on various factors. Timely detection and proper treatment can successfully eliminate the inflammatory reaction within a few days.

Susceptible Role of Saccharin Mixture in Induction of Inflammation Through Action on Interleukin-10 and its Receptor

Sodium cyclamate and saccharin mixture is a common artificial sweetener used as a food additive and it was found to be accompanied with increase relevance of inflammation including IBD. The causes of IBD are unknown, but many immune, genetic and environmental factors play a role as causative agents of that disease. The consumption of artificial sweeteners was related to the appearance of inflammation including IBD. The present study was aimed to evaluate the effect of sodium cyclamate and saccharin mixture as artificial sweeteners on immune system in albino mice through assessment of IL-10 cytokine and its receptor. Fifty male albino mice grouped into control group (n=20) receive only tap water and treated groups (n=30) received 60 mg/kg body weight sodium cyclamate and saccharin mixture in tab water for 12 weeks. Mice were sacrificed twice at the 6th and the 12th weeks. Collected blood measured low concentration of IL-10 cytokine by the sandwich ELISA. While, expression levels of IL-10R1 and IL-10R2 were assessed in colorectal tissue samples using Real time PCR. The results demonstrate significantly overexpression of IL-10R1 and IL-10R2 at 6th week than 12th week treated mice was recorded. Also, more congestion of RBCs, focal aggregation, focal necrosis, and focal infiltrations between glands in the lamina propria at 12th week treated group than 6th week treated group were observed. In conclusion, sodium cyclamate and saccharin mixture induced inflammation that may be risk for IBD by alteration in gene expressions of IL-10R1 and IL-10R2 in male albino mice.

EEN Yesterday and Today … CDED Today and Tomorrow.

The treatment of Pediatric Crohn’s Disease (CD) requires attention both to achieve mucosal healing and to optimize growth, while also maintaining proper bone health. Exclusive Enteral Nutrition (EEN) is recommended as first-line treatment in luminal CD. The therapeutic mechanisms of EEN are being discovered by advances in the study of the gut microbiota. Although the total exclusion of a normal diet during the time of EEN continues to be of high importance, new modalities of dietary treatment suggest a successful future for the nutritional management of CD. In this sense, Crohn’s Disease Exclusion Diet (CDED) is a long-term strategy, it apparently acts on the mechanisms that influence the appearance of inflammation (reducing dietary exposure to products negatively affecting the microbiota), but does so using specific available whole foods to achieve this goal, increases the time of clinical remission and promotes healthy lifestyle habits. The development of CDED, which partly minimizes the problems of EEN, has enabled a turnaround in the treatment of pediatric CD. This review highlights the role of enteral nutrition in the treatment of Crohn’s disease with special emphasis on newer dietary modalities such as CDED.

Acute Mastoiditis - Beginning of COVID-19 Infection - Case Report

Abstract Particular onset of Sars-Cov-2 infection, by acute mastoiditis without symptoms specific to the case definition. Mastoiditis is part of inflammatory diseases of the middle ear and is important because of its frequency and life-threatening complications due to the close relationship between the middle ear and the cranial cavity. An acute middle ear inflammation may follow a serious course even if the tympanic membrane does not perforate. In the pathogenesis of acute suppurations of the middle ear, the Eustachian tube plays a major role in the appearance of inflammation and the development of the disease. The most common germ can be - a virus whose initial effect is congestion of mucosa and reduce resistance to biological defence by promoting rapid superinfection with Hemophilus Pneumococcus, Staphylococcus, and others. Sars-Cov-2 infection begins with respiratory phenomena and clinical and biological inflammatory syndrome. This article presents a case of Sars-Cov-2 infection with atypical onset of acute mastoiditis. The clinical importance lies in the fact that the virus can migrate from the nose and nasopharynx through its Eustachian tube into the middle ear and from here to the mastoid. The presence of the virus in the middle ear is almost constant even if the patient is asymptomatic. This requires precautions in all surgical maneuvers at this level in patients with Sars-Cov-2 infection.

The eyelid tumor in Yogyakarta, Indonesia

Many types of eyelid tumors may easily be diagnosed from a clinical point of view. However only a small number of large studies exist exploring the frequency of eyelid lesions from different regions. According to the epidemiology of various eyelid lesions happened in Yogyakarta Special Region, this study was aimed to investigate the prevalence of eyelid tumors in Yogyakarta Special Region. A total of 94 patients were enrolled in a descriptive study. The data were taken retrospectively from the medical record. All patients were diagnosed with eyelid tumors from January 2014 until December 2017 by histopathological examination. Among the subjects, 56 (59.6%) were male and 38 (40.4%) were female. There was no difference found in laterality (OD 46% vs OS 50%). Sebaceous carcinoma was found in 15 (16%) patients, followed by squamous cell carcinoma (SCC) 13 (13.8%), basal cell carcinoma (BCC) 11 (11.7%), epidermoid cyst 7 (7.4%), non-Hodgkin lymphoma 7 (7.4%), and others. We also found that 11 (11.7%) of patients showed an inflammation appearance only. The therapy was varied from extirpation and biopsy (39.4%), wide excision (27.7%), excision and biopsy (18.1%), exenteration (10.6%), and also anterior and lateral orbitotomy (2.1%) for each procedure. The eyelid tumor was found equally in the right and the left eye. Sebaceous carcinoma followed by SCC and BCC were the most common eyelid tumor found in this study. A further study is needed to determine the risk factor of each tumor.

Deficiency in STAT1 Signaling Predisposes Gut Inflammation and Prompts Colorectal Cancer Development.

Signal transducer and activator of transcription 1 (STAT1) is part of the Janus kinase (JAK/STAT) signaling pathway that controls critical events in intestinal immune function related to innate and adaptive immunity. Recent studies have implicated STAT1 in tumor–stroma interactions, and its expression and activity are perturbed during colon cancer. However, the role of STAT1 during the initiation of inflammation-associated cancer is not clearly understood. To determine the role of STAT1 in colitis-associated colorectal cancer (CAC), we analyzed the tumor development and kinetics of cell recruitment in wild-type WT or STAT1−/− mice treated with azoxymethane (AOM) and dextran sodium sulfate (DSS). Following CAC induction, STAT1−/− mice displayed an accelerated appearance of inflammation and tumor formation, and increased damage and scores on the disease activity index (DAI) as early as 20 days after AOM-DSS exposure compared to their WT counterparts. STAT1−/− mice showed elevated colonic epithelial cell proliferation in early stages of injury-induced tumor formation and decreased apoptosis in advanced tumors with over-expression of the anti-apoptotic protein Bcl2 at the colon. STAT1−/− mice showed increased accumulation of Ly6G+Ly6C−CD11b+ cells in the spleen at 20 days of CAC development with concomitant increases in the production of IL-17A, IL-17F, and IL-22 cytokines compared to WT mice. Our findings suggest that STAT1 plays a role as a tumor suppressor molecule in inflammation-associated carcinogenesis, particularly during the very early stages of CAC initiation, modulating immune responses as well as controlling mechanisms such as apoptosis and cell proliferation.

ОЦЕНКА БЛИЖАЙШИХ И ОТДАЛЕННЫХ РЕЗУЛЬТАТОВ ЭЗОФАГОПЛАСТИКИ ПРИ ДОБРОКАЧЕСТВЕННЫХ ЗАБОЛЕВАНИЯХ ПИЩЕВОДА

Evaluation of the immediate and long-term results of esophagoplasty with pathomorphological analysis of the mucosa of the artificial esophagus.objective: to analyze the results of esophagoplasty in patients with scar narrowing of the esophagus and achalasia of the cardia.Material and methods: Between 1998 and 2018, 205 esophagoplasty was performed with scar narrowing of the esophagus and achalasia of the cardia. Long-term results were studied in 178 with the prescription of interference for more than 1 year (73 after esophagocoloplasty, 84 after esophagogastroplasty).results: Violations of the functioning of the colonic artificial esophagus, with the appearance of inflammation of the mucosa of the artificial esophagus, revealed during endoscopic examination and fluoroscopy of the artificial esophagus. Pathomorphological studies have revealed the reorganization of the epithelium of the artificial esophagus, which corresponds to the data of the endoscopic study. Inflammatory changes were detected in patients after coloplasty, atrophic and sclerosing in patients after gastroplasty.Conclusion: thus, the gastric stem is most suitable for esophagoplasty, according to the findings.

Oxidative Stress, Apoptosis, and Mitochondrial Function in Diabetic Nephropathy.

Diabetic nephropathy (DN) is the second most frequent and prevalent complication of diabetes mellitus (DM). The increase in the production of oxidative stress (OS) is induced by the persistent hyperglycemic state capable of producing oxidative damage to the macromolecules (lipids, carbohydrates, proteins, and nucleic acids). OS favors the production of oxidative damage to the histones of the double-chain DNA and affects expression of the DNA repairer enzyme which leads to cell death from apoptosis. The chronic hyperglycemic state unchains an increase in advanced glycation end-products (AGE) that interact through the cellular receptors to favor activation of the transcription factor NF-κB and the protein kinase C (PKC) system, leading to the appearance of inflammation, growth, and augmentation of synthesis of the extracellular matrix (ECM) in DN. The reactive oxygen species (ROS) play an important role in the pathogenesis of diabetic complications because the production of ROS increases during the persistent hyperglycemia. The primary source of the excessive production of ROS is the mitochondria with the capacity to exceed production of endogenous antioxidants. Due to the fact that the mechanisms involved in the development of DN have not been fully clarified, there are different approaches to specific therapeutic targets or adjuvant management alternatives in the control of glycemia in DN.

Appearance of Inflammation in Peripheral Blood during Menstrual Cycles in Women of Childbearing Age

Background: Chronic inflammation has been reported as a triggering and driving factor in the pathogenesis of various diseases and is believed to be closely associated with tumor pathogenesis. In this study, we aimed to explore the changes of the inflammatory stress-related indexes during the menstrual period. Methods: Cytokines and tumor-associated carbohydrate antigens from 76 childbearing-age women during the follicular phase, luteal phase, and menstrual period were measured. Results: The expression of inflammatory indexes, such as platelets (PLT), lymphocytes (Lym), the percentage of Lym (Lym%), neutrophils (Neu), the percantage of Neu (Neu%), neutrophil-to-lymphocyte ratio (NLR), interleukin-6 (IL-6), and cancer antigen 125 (CA125), reached the highest level during the menstrual period. Conclusions: Female genital organs are under inflammatory stress during menstruation, which hints that the changes of the inflammatory state of the body play an important role in the pathogenesis of diseases.

Delayed Hair Follicle Morphogenesis and Hair Follicle Dystrophy in a Lipoatrophy Mouse Model of Pparg Total Deletion

PPARγ regulates multiple aspects of skin physiology, including sebocyte differentiation, keratinocyte proliferation, epithelial stem cell survival, adipocyte biology, and inflammatory skin responses. However, the effects of its global deletion, namely of nonredundant key functions of PPARγ signaling in mammalian skin, are yet unknown because of embryonic lethality. Here, we describe the skin and hair phenotype of a whole-body PPARγ-null mouse (PpargΔ/Δ), obtained by preserving PPARγ expression in the placenta. PpargΔ/Δ mice exhibited total lipoatrophy and complete absence of sebaceous glands. Right after birth, hair follicle (HF) morphogenesis was transiently delayed, along with reduced expression of HF differentiation markers and of transcriptional regulators necessary for HF development. Later, adult PpargΔ/Δ mice developed scarring alopecia and severe perifollicular inflammation. Skin analyses in other models of lipodystrophy, AZIPtg/+ and Adipoq-Cretg/+Ppargfl/fl mice, coupled with skin graft experiments, showed that the early defects observed in hair morphogenesis were caused by the absence of adipose tissue. In contrast, the late alteration of HF cycleand appearance of inflammation were observed only in PpargΔ/Δ mice and likely were due to the lack sebaceous glands. Our findings underscore the increasing appreciation for the importance of adipose tissue-mediated signals in HF development and function.

An Inhaled Inhibitor of Myristoylated Alanine-Rich C Kinase Substrate Reverses LPS-Induced Acute Lung Injury in Mice.

Intratracheal instillation of bacterial LPS is a well-established model of acute lung injury (ALI) and/or acute respiratory distress syndrome (ARDS). Because the myristoylated alanine-rich C kinase substrate (MARCKS) protein is involved in neutrophil migration and proinflammatory cytokine production, we examined whether an aerosolized peptide that inhibits MARCKS function could attenuate LPS-induced lung injury in mice. The peptide, BIO-11006, was delivered at 50 μM via inhalation either just before intratracheal instillation of 5 μg of LPS into Balb/C mice, or 4, 12, 24, or 36 hours after LPS instillation. Effects of BIO-11006 were evaluated via analysis of mouse disease-related behavior, lung histology, bronchoalveolar lavage fluid total protein, neutrophil counts and percentages, cytokine (KC [CXCl1, mouse IL-8 equivalent] and TNF-α) expression, and activation of NF-κB in lung tissue. Treatment with aerosolized BIO-11006 at 0, 4, 12, 24, and even 36 hours after LPS instillation reversed the disease process: mouse behavior returned to normal after two treatments 12 hours apart with the inhaled peptide after LPS injury, whereas control LPS-instilled animals treated with PBS only remained moribund. Histological appearance of inflammation, bronchoalveolar lavage fluid protein levels, leukocyte and neutrophil numbers, KC and TNF-α gene and protein expression, and NF-κB activation were all significantly attenuated by inhaled BIO-11006 at all time points. These results implicate MARCKS protein in the pathogenesis of ALI/ARDS and suggest that MARCKS-inhibitory peptide(s), delivered by inhalation, could represent a new and potent therapeutic treatment for ALI/ARDS, even if administered well after the disease process has begun.

Role of modified ultrafiltration in reduce of the systemic inflammatory response syndrome in cardiac surgery

During open-heart surgery it is possible to disturbance of the barrier function and the appearance of inflammation in the systemic circulation of inflammatory mediators and pro-inflammatory cytokines, which is realized in the systemic inflammatory response syndrome (SIRS). To prevent the development of the condition, or to reduce the severity of its complications method of mechanical removal of inflammatory mediators and cytokines from the blood of the patient is the most efficient. At the moment, the problem of implementation of the systemic inflammatory response syndrome after surgery using cardiopulmonary bypass quite relevant because of the high frequency of its manifestations and adverse effects [18]. This explains the large number of studies aimed at both the study of the pathogenesis of systemic inflammatory response syndrome and the development of new methods to combat this phenomenon and the improvement of already applied methods and techniques [1, 4]. There are various ways to the reduction of the degree of systemic inflammatory response syndrome, but special attention is given to the study of methods of modified ultrafiltration and continuous veno-venous hemofiltration. Further study of the application of ultrafiltration on patients undergoing cardiac surgery heart surgery with the use of bypass is necessary for understanding of the physiology and pathophysiology of systemic inflammatory response syndrome induced by the conduct of bypass, as well as for the subsequent formulation of clinical guidelines for use in cardiac surgery practice. In this article we have tried to consider the most significant results of such studies.

MR Enterography of the Ileoanal Pouch: Descriptive Radiologic Analysis With Endoscopic and Pathologic Correlation.

The purpose of this study was to describe the MR enterography (MRE) appearance of inflammation of the ileoanal pouch after ileal pouch-anal anastomosis (IPAA) surgery and to correlate it with pouch endoscopic and histopathologic findings. All MRE studies performed between October 1, 2007, and September 30, 2013, for patients who had previously undergone IPAA (n = 54) were retrieved. After review of medical records, the patients who underwent MRE, pouch endoscopy, and biopsy within 90 days (14 men, 14 women; mean age, 42.2 years; range, 24-67 years) were selected for inclusion in the study. Two blinded MRI radiologists in consensus retrospectively evaluated MRE studies for multiple MRI features. Two MRI scores were then calculated: an active and a composite inflammation score. A gastroenterologist retrospectively reviewed the pouch endoscopic images, and a pathologist reviewed the slides; both of these investigators were blinded. Both MRI scores were correlated with the pouch endoscopic and histopathologic findings. The composite MRI score had strong positive correlation with the endoscopic score (r = 0.61; p = 0.0005) but weak positive correlation with the histopathologic score (r = 0.31; p = 0.10, not statistically significant). The active inflammation MRI score had moderate positive correlation with the endoscopic score (r = 0.57; p = 0.0017) and weak positive correlation with the histopathologic score (r = 0.20; p = 0.31, not statistically significant). An MRI score ≥ 4 indicated the best results, with sensitivity of 86%, specificity of 79%, positive predictive value of 80%, negative predictive value of 85%, and accuracy of 82% for pouch inflammation. A positive likelihood ratio of 4.00 and negative likelihood ratio of 0.18 were obtained. In patients who have undergone IPAA surgery, the MRE findings strongly correlate with the pouch endoscopic findings with high sensitivity and positive predictive value for pouch inflammation. Therefore, MRE is a useful noninvasive test performed without ionizing radiation that can be used to evaluate patients with clinical symptoms and possibly alleviate the need for endoscopy in a select patient population.

420P - Impact of Tumor Microenvironment on the Expression of Vascular Endothelial Growth Factor Receptor 2 in Glioblastoma Multiforme

ABSTRACT Aim: The aim of our study was to evaluate the impact of tumor microenvironment (visual inflammation, inflammatory ICAM-1 expression) on the expression of vascular endothelial growth factor receptor 2 (VEGFR-2). Methods: Surgically excised GBM tissues (n = 42) were histologically examined for the overall extent of inflammation (score 1-3, based on typical appearance of inflammation, including presence of edema and inflammatory cell infiltration). After immunohistochemical staining procedure, tissue expression of ICAM-1 (optical density using pixel analysis software) as well as the number of VEGFR-2 positive (VEGFR-2+) blood vessels (per microscopic field) and endothelial staining intensity of VEGFR-2 (score 0-3) were determined. Results: In individual GBM samples, the extent of inflammation varied, being in the whole group 1.9 ± 0.7 (mean ± SD). Mean optical density of ICAM-1 (one of the mediators of inflammation) was 57,0 ± 27.1 (mean ± SD). The number of VEGFR-2+ blood vessels per microscopic field and endothelial VEGFR-2 staining intensity were 6.2 ± 2.4 (mean ± SD) and 1.2 ± 0.8 (mean ± SD) respectively. A positive association was found between VEGFR-2 staining intensity and the extent of inflammation (p = 0.005). Moreover, VEGFR-2 staining intensity correlated with the expression level of tissue ICAM-1 (p = 0.026). Conclusions: The expression of VEGFR-2 – one of the targets of anti-angiogenic therapy – depends on GBM microenvironment. Importantly, higher VEGFR-2 levels were seen in the presence of more pronounced inflammation, whereas in less inflamed tissues only weak expression of VEGFR-2 was found. Later has to be taken into consideration when VEGFR-2 targeting anti-angiogenetic drugs are tested in the treatment of GBM. This work was supported by grant IUT2-4. Disclosure: All authors have declared no conflicts of interest.

Appendiceal Skip Inflammation and Ulcerative Colitis

In recent decades, the appearance of inflammation near the appendix in patients with distal ulcerative colitis (UC) has been highlighted. Many epidemiological studies have confirmed the link between appendectomy and decreased incidence of UC. However, the clinical significance of appendiceal orifice inflammation (AOI) or peri-appendiceal red patch (PARP) as a "skip lesion" in UC has not been well elucidated. In this review, we summarized the literature regarding AOI/PARP and the role of this lesion in relation to UC. Since the appendiceal "skip area" in UC was first described in 1958, several reports using histologic examination of colectomy specimens and colonoscopy have been published. AOI/PARP has been more frequently associated with distal, mild UC than extensive, severe disease. Although it is still controversial, AOI/PARP seems to have little prognostic implication in the disease course of UC, including remission, relapse and proximal disease extension. However, some case reports have raised the possibility of a relationship between AOI/PARP and appendiceal neoplasms such as appendiceal cystadenoma and appendiceal adenocarcinoma. In addition, some investigators have treated UC patients who were resistant to conventional medical therapy with appendectomy and have reported inconsistent therapeutic effect. Further research may lead to the discovery of etiologic and pathogenic roles of appendiceal inflammation in UC.