Inflammatory bowel disease, encompassing Crohn's disease and ulcerative colitis, is a persistent immune-mediated inflammatory gastrointestinal disease. This study investigates the role of growth differentiation factor 15 in severe IBD cases, aiming to identify a reliable parameter to assess disease severity and monitor activity. We analyzed plasma samples from 100 patients undergoing biologic therapy for severe IBD and 50 control subjects. Our analysis included evaluations of GDF-15 levels, inflammatory markers, and clinical features. We employed statistical methods such as the Mann-Whitney U test, ANOVA, and Spearman's correlation for an in-depth analysis. Our results demonstrated consistently higher GDF-15 levels in patients with both Crohn's disease and ulcerative colitis compared to the control group, irrespective of the biologic treatment received. The correlation analysis indicated significant relationships between GDF-15 levels, patient age, fibrinogen, and IL-6 levels. This study positions GDF-15 as a promising biomarker for severe IBD, with notable correlations with age and inflammatory markers. These findings underscore GDF-15's potential in enhancing disease monitoring and management strategies in an IBD context and encourage further research to clarify GDF-15's role in the IBD pathophysiology.
- Publikační typ
- časopisecké články MeSH
BACKGROUND: Pathogen reduction technology (PRT) is increasingly used in the preparation of platelets for therapeutic transfusion. As the Czech Republic considers PRT, we asked what effects PRT may have on the recovery and function of platelets after cryopreservation (CP), which we use in both military and civilian blood settings. STUDY DESIGN AND METHODS: 16 Group O apheresis platelets units were treated with PRT (Mirasol, Terumo BCT, USA) before freezing; 15 similarly collected units were frozen without PRT as controls. All units were processed with 5-6% DMSO, frozen at - 80 °C, stored > 14 days, and reconstituted in thawed AB plasma. After reconstitution, all units were assessed for: platelet count, mean platelet volume (MPV), platelet recovery, thromboelastography, thrombin generation time, endogenous thrombin potential (ETP), glucose, lactate, pH, pO2, pCO2, HCO3, CD41, CD42b, CD62, Annexin V, CCL5, CD62P, and aggregates > 2 mm and selected units for Kunicki score. RESULTS: PRT treated platelet units had lower platelet number (247 vs 278 ×109/U), reduced thromboelastographic MA (38 vs 62 mm) and demonstrated aggregates compared to untreated platelets. Plasma coagulation functions were largely unchanged. CONCLUSIONS: Samples from PRT units showed reduced platelet number, reduced function greater than the reduced number would cause, and aggregates. While the platelet numbers are sufficient to meet the European standard, marked platelets activation with weak clot strength suggest reduced effectiveness.
- MeSH
- konzervace krve MeSH
- kryoprezervace MeSH
- kyselina mléčná MeSH
- lidé MeSH
- riboflavin farmakologie MeSH
- separace krevních složek * MeSH
- thrombin MeSH
- trombocyty fyziologie MeSH
- ultrafialové záření * MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
BACKGROUND: Pathogen reduction technology (PRT) may improve the safety of RBCs for transfusion. As the Czech Republic considers PRT, we asked what effects riboflavin and UV light PRT pre-freezing has on the post-thaw recovery and properties of cryopreserved RBCs (CRBCs) after deglycerolization and liquid storage. STUDY DESIGN AND METHODS: 24 Group O whole blood (WB) units were leukoreduced and then treated with riboflavin and UV light PRT (Mirasol, Terumo BCT, USA) before cryopreservation (T-CRBC); 20 similarly-collected units were untreated controls (C-CRBC). Units were processed to RBCs and then cryopreserved with 40% glycerol (wt/vol), frozen at -80°C, stored >118 days, reconstituted as deglycerolized RBC units in AS-3, and stored at 4 ± 2°C for 21 days. One treated unit sustained massive hemolysis during the post-thaw wash process and was removed from data analysis. The remaining units were assessed pre-PRT, post-PRT, and post-thaw-wash on days 0, 7, 14, and 21 for hematocrit, volume, hemoglobin per transfusion unit, pH, % hemolysis, hemoglobin in the supernatant, potassium, phosphorus, NH3 , osmolality, ATP, and 2,3-diphosphoglycerate. RESULTS: PRT with leukoreduction caused a 5% loss of RBC followed by a 24% freeze-thaw-wash related loss for a total 28% loss but treated units contained an average of 45 g of hemoglobin, meeting European Union guidelines for CRBC. T-CRBCs displayed higher post-wash hemolysis, potassium, and ammonia concentrations, and lower ATP at the end of storage. CONCLUSIONS: Cryopreserved RBCs from Riboflavin and UV light-treated WB meet the criteria for clinical use for 7 days after thawing and provide additional protection against infectious threats.
- MeSH
- adenosintrifosfát MeSH
- draslík analýza MeSH
- erytrocyty MeSH
- hemoglobiny analýza MeSH
- hemolýza * MeSH
- konzervace krve MeSH
- kryoprezervace MeSH
- lidé MeSH
- riboflavin farmakologie MeSH
- ultrafialové záření * MeSH
- zmrazování MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
- Research Support, U.S. Gov't, Non-P.H.S. MeSH
Cíl studie: posouzení využitelnosti sérového kalprotektinu jako biomarkeru bakteriální infekce v rutinní praxi. Typ studie: prospektivní, observační studie. Název a sídlo pracoviště: Ústřední vojenská nemocnice – Vojenská fakultní nemocnice Praha Materiál a metody: do studie byli zařazeni všichni pacienti přijatí na Kliniku infekčních nemocí v období leden až březen 2020. Sérový kalprotektin byl stanoven pomocí systému EVOLIS™ Microplate a komerčně dostupné enzymoimunoeseje firmy Biovendor. Výsledky: celkem byla vyhodnocena data 36 nemocných (24 mužů a 12 žen s průměrným věkem 63,9 let), u kterých byla potvrzena diagnóza virové nebo bakteriální infekce. Nejčastějším zdrojem bakteriální infekce byly dýchací cesty (33,3 %), následované měkkými tkáněmi (25 %) a infekcemi urogenitálního a gastrointestinálního traktu (shodně 16,7 %). Virovou infekci nejčastěji představovala chřipka A (66,6 %). Medián sérové koncentrace kalprotektinu u bakteriální infekce byl 4,12 mg/L oproti 2,03 mg/L při infekci virové. U 12 nemocných s bakteriální infekcí a zvýšeným C-reaktivním proteinem (CRP), u kterých nebyl zvýšen prokalcitonin (PCT), byla zjištěna zvýšená hodnota sérového kalprotektinu. Naopak u osmi nemocných s potvrzenou bakteriální infekcí nebyl kalprotektin zvýšen, čtyři z těchto pacientů měli současně s CRP zvýšený i PCT a čtyři nemocní měli zvýšené pouze CRP. V souboru byl rovněž případ bakteriální infekce se zvýšeným kalprotektinem a negativním CRP i PCT. Závěr: výsledky naší studie naznačily význam sérového kalprotektinu jako doplňkového parametru pro diagnostiku bakteriální infekce.
Objective: evaluation of clinical use of serum calprotectin as biomarker of bacterial infection Design: prospective, observational study Settings: Military University Hospital Prague Material and Methods: all patients admitted to the Department of infectious Diseases during the period between January and March 2020 were enrolled to the study. Serum calprotectin was analyzed using EVOLIS™ Microplate system and commercially available assay from the Biovendor company. Results: Altogether, data of 36 enrolled patients with proven bacterial or viral infection (24 males and 12 females with mean age 63.9 years) were evaluated. The most frequent source of bacterial infection was respiratory tract (33.3 %) followed by soft tissue (25 %) and infections of urogenital and gastrointestinal tracts (both 16.7 %). The most common viral infection was flu A (66.6 %). Median of calprotectin serum concentration in bacterial infection was 4.12 mg/L in comparison to 2.03 mg/L in viral infection. In 12 patients with bacterial infection with negative procalcitonin (PCT) levels, both C-reactive protein (CRP) and calprotectin were elevated. On the other hand, eight patients with proven bacterial infection had negative calprotectin serum levels. Four of these patients had elevated CRP and PCT and four CRP only. In addition, in the cohort with bacterial infection, there was one patient with calprotectin elevation only. Conclusion: the results of our study indicated serum calprotectin as additional parameter of bacterial infection.
- Publikační typ
- abstrakt z konference MeSH
The aim of this study was to evaluate the serum levels of calprotectin and calgranulin C and routine biomarkers in patients with bacterial sepsis (BS). The initial serum concentrations of calprotectin and calgranulin C were significantly higher in patients with BS (n = 66) than in those with viral infections (n = 24) and the healthy controls (n = 26); the level of calprotectin was found to be the best predictor of BS, followed by the neutrophil-lymphocyte count ratio (NLCR) and the level of procalcitonin (PCT). The white blood cell (WBC) count and the NLCR rapidly returned to normal levels, whereas PCT levels normalized later and the increased levels of calprotectin, calgranulin C, and C-reactive protein persisted until the end of follow-up. Our results suggest that the serum levels of calprotectin are a reliable biomarker of BS and that the WBC count and the NLCR are rapid predictors of the efficacy of antimicrobial therapy.
- MeSH
- bakteriální infekce krev diagnóza MeSH
- biologické markery krev MeSH
- C-reaktivní protein analýza MeSH
- dospělí MeSH
- kinetika MeSH
- leukocytární L1-antigenní komplex krev MeSH
- lidé středního věku MeSH
- lidé MeSH
- neutrofily cytologie MeSH
- počet leukocytů MeSH
- počet lymfocytů MeSH
- protein S100A12 krev MeSH
- senioři MeSH
- senzitivita a specificita MeSH
- sepse krev diagnóza MeSH
- virové nemoci krev diagnóza MeSH
- Check Tag
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- mužské pohlaví MeSH
- senioři MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
Pancreatic tumors and their surgical resection are associated with significant morbidity and mortality, and the biomarkers currently used for these conditions have limited sensitivity and specificity. Because calprotectin and calgranulin C serum levels have been demonstrated to be potential biomarkers of certain cancers and complications of major surgery, the levels of both proteins were tested in the current study in patients with benign and malignant pancreatic tumors that were surgically removed. The baseline serum levels and kinetics of calprotectin and calgranulin C during the 7-day postoperative period were evaluated with immunoassays in 98 adult patients who underwent pancreatic surgery. The baseline serum levels of calprotectin and calgranulin C in patients with malignant (n = 84) and benign tumors (n = 14) were significantly higher (p < 0.01) when compared to those in the healthy controls (n = 26). The serum levels of both proteins were also significantly (p < 0.05) higher in patients with benign tumors than in those with malignant tumors. After surgery, the serum levels of calprotectin and calgranulin C were significantly (p < 0.01) higher than their baseline values, and this elevation persisted throughout the seven days of the follow-up period. Interestingly, starting on day 1 of the postoperative period, the serum levels of both proteins were significantly (p < 0.05) higher in the 37 patients who developed postoperative pancreatic fistulas (POPFs) than in the patients who had uneventful recoveries (n = 61). Moreover, the serum levels of calprotectin and calgranulin C demonstrated a significant predictive value for the development of POPF; the predictive values of these two proteins were better than those of the serum level of C-reactive protein and the white blood cell count. Taken together, the results of this study suggest that calprotectin and calgranulin C serum levels are potential biomarkers for pancreatic tumors, surgical injury to the pancreatic tissue and the development of POPFs.
- MeSH
- biologické markery krev MeSH
- C-reaktivní protein MeSH
- leukocytární L1-antigenní komplex krev MeSH
- lidé MeSH
- nádory slinivky břišní chirurgie MeSH
- pooperační období MeSH
- prospektivní studie MeSH
- protein S100A12 krev MeSH
- Check Tag
- lidé MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
Cíl studie: Sledování kinetiky calprotectinu a calgranulinu C v krvi u polytraumatizovaných pacientů, posouzení sérových koncentrací obou proteinů jako prediktorů nozokomiální infekce a srovnání sérových koncentrací calprotectinu a calgranulinu C s rutinními prozánětovými faktory a skórovacími systémy. Typ pracoviště: Pracoviště intenzivní medicíny fakultní nemocnice. Typ studie: Monocentrická prospektivní studie. Materiál a metoda: Do studie bylo zařazeno 25 pacientů s polytraumatem a 20 zdravých dobrovolníků. Pacientům byla odebrána krev při příjmu (1. den) a 3., 5. a 7. den hospitalizace a byla stanovena sérová koncentrace calprotectinu a calgranulinu C enzymoimunoanalyticky. Pacienti byli skórováni dle Injury Severity Score, Acute Physiology And Chronic Health Evaluation II a Sequential Organ Failure Assessment Score (SOFA). Z rutinních laboratorních parametrů byl stanoven počet leukocytů, C-reaktivní protein (CRP), prokalcitonin (PCT), glykemie, laktát. Dále byl sledován případný rozvoj nozokomiální infekce. Výsledky: U polytraumatizovaných pacientů byly zjištěny signifikantní elevace sérové koncentrace calprotectinu a calgranulinu C oproti zdravým kontrolám po celou dobu sledování. Dále byla zjištěna pozitivní korelace mezi oběma proteiny a SOFA skóre 1. a 3. den hospitalizace. Calprotectin a calgranulin C pozitivně korelovaly 3. den s CRP a PCT a calprotectin koreloval s CRP i 5. den studie. Patrný byl trend nižší koncentrace calprotectinu a calgranulinu C u 10 pacientů s nozokomiální infekcí a u těchto nemocných byla pozorována 1., 3. a 5. den signifikantně vyšší glykemie oproti pacientům bez infekční komplikace (n = 8). Závěr: Výsledky naznačují využití sérových koncentrací calprotectinu a calgranulinu C jako potencionálních biomarkerů polytraumatu.
Objective: To study the kinetics of calprotectin and calgranulin C in the serum of patients with polytrauma, to evaluate the serum levels of both the proteins as predictors of nosocomial infection (NI), and to compare calprotectin and calgranulin C with routine biomarkers and scoring systems. Design: Monocentric, prospective, clinical study Setting: University Hospital ICU Materials and methods: The study included 25 polytrauma patients and 20 healthy volunteers. The blood specimens were collected on admission (day 1) and then on days 3, 5 and 7 of hospitalization. Concentrations of calprotectin and calgranulin C were determined by enzyme immunometric assay. Patients were scored with Injury Severity Score, Acute Physiology And Chronic Health Evaluation II a Sequential Organ Failure Assessment Score (SOFA). The white blood cell count and the serum concentrations of the C-reactive protein (CRP), procalcitonin (PCT), glucose and lactate were the measured routine biomarkers. Other parameters included length of ICU stay, duration of mechanical ventilation, antibiotic therapy and development of nosocomial infection. Results: Significant elevations of the calprotectin and calgranulin C serum levels in trauma patients in comparison to healthy subjects were observed during the whole study period. Concentrations of both the proteins correlated positively with the SOFA score on days 1 and 3, CRP and PCT on day 3; and calprotectin also correlated with CRP on day 5. A trend of low serum levels of calprotectin a calgranulin C was observed in patients with nosocomial infection (n=10). In addition, these patients had significantly higher glycaemia on days 1, 3 and 5 in comparison to patients without infectious complication (n=8). Conclusions: The results suggest calprotectin and calgranulin C serum levels as suitable biomarkers of severe injury.
- MeSH
- C-reaktivní protein analýza MeSH
- infekce spojené se zdravotní péčí diagnóza etiologie MeSH
- interpretace statistických dat MeSH
- kalcitonin krev MeSH
- leukocytární L1-antigenní komplex * analýza farmakologie MeSH
- lidé MeSH
- péče o pacienty v kritickém stavu MeSH
- polytrauma * diagnóza komplikace patologie MeSH
- prospektivní studie MeSH
- protein S100A12 * farmakologie krev MeSH
- vyhodnocení orgánové dysfunkce MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- práce podpořená grantem MeSH
- Publikační typ
- abstrakt z konference MeSH
