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Digestive Diseases and Sciences Aug 2023The small intestinal bacterial overgrowth (SIBO) in acute pancreatitis correlates with the severity of the disease. However, corresponding studies on the microbial...
OBJECTIVE
The small intestinal bacterial overgrowth (SIBO) in acute pancreatitis correlates with the severity of the disease. However, corresponding studies on the microbial composition of the duodenal mucosa of patients are uncommon.
METHODS
Duodenal mucosal biopsies were collected by gastroscopy from 16 patients with mild acute pancreatitis (the Ap group) and 16 healthy individuals (the control group) and subjected to histological studies as well as bacterial 16S rRNA gene sequencing. Caerulein and L-arginine were used to induce mild acute pancreatitis (MAP) and severe acute pancreatitis (SAP) in mice, respectively, and their pancreas and duodenum were collected for histological studies.
RESULTS
H&E analysis displayed no significant pathological damage in the descending duodenum of patients with acute pancreatitis compared with that of the controls. Immunofluorescence and Real-time PCR revealed that the expressions of tight junction proteins (TJPs) in duodenal mucosa were decreased in acute pancreatitis. The results of the alpha diversity analysis revealed no significant difference between the two groups, while LEfSe and the random forest revealed a few differences, indicating that the descending duodenum mucosal microbiota changed slightly in patients with mild acute pancreatitis. We observed the pathological changes and the expression of TJPs in the duodenum in the three groups of mice and found that SAP mice had more severe pathological damage in the duodenum. Furthermore, the expression of TJPs in the duodenum was lower in the MAP and SAP groups of mice compared to control mice, but it was similar in both groups.
CONCLUSION
Patients with mild acute pancreatitis had mild duodenal barrier dysfunction and slight changes in duodenal mucosal microbiota.
Topics: Humans; Acute Disease; RNA, Ribosomal, 16S; Pancreatitis; Duodenum; Intestinal Mucosa; Tight Junction Proteins; Microbiota
PubMed: 37258979
DOI: 10.1007/s10620-023-07948-8 -
International Journal of Nanomedicine 2023Numerous preclinical investigations have exhibited the beneficial impact of emodin (EMO) on the management of severe acute pancreatitis (SAP)-associated acute lung...
BACKGROUND
Numerous preclinical investigations have exhibited the beneficial impact of emodin (EMO) on the management of severe acute pancreatitis (SAP)-associated acute lung injury (ALI). However, the potential of EMO to mitigate organ damage through the modulation of exosome (Exo)-specific miRNA expression profiles remains unclear.
METHODS
The SAP rat model was established by retrograde injection of 5% sodium taurocholate into the pancreatic bile duct. Rats received intragastric administration of EMO at 2 h and 12 h post-modeling. Plasma and bronchoalveolar lavage fluid (BALF)-derived exosomes were isolated and purified from SAP rats treated with EMO. The therapeutic effects of these Exos in SAP rats were assessed using hematoxylin-eosin staining and measurement of inflammatory factor levels. MicroRNA (miRNA) sequencing was conducted on plasma and BALF-derived Exos, and rescue experiments were performed to investigate the function of NOVEL miR-29a-3p in the treatment of SAP using EMO.
RESULTS
EMO exhibits ameliorative effects on pancreatic and lung injury and inflammation in rats with SAP. Plasma/BALF-derived Exos from EMO-treated SAP rats also have therapeutic effects on SAP rats. The miRNA expression profile of plasma and BALF-derived Exos in SAP rats underwent significant changes upon exposure to EMO. In particular, 34 differentially expressed miRNAs (DEmiRNAs) were identified when comparing BALF-SAP+EMO-Exo and BALF-SAP-Exo. 39 DEmiRNAs were identified when comparing plasma-SAP+EMO-Exo to plasma-SAP-Exo. We found that SAP rats treated with Exos derived from BALF exhibited a more potent therapeutic response than those treated with Exos derived from plasma. EMO may rely on NOVEL-rno-miR-29a-3p expression to prevent pulmonary injury in SAP rats.
CONCLUSION
The mechanism of action of EMO is observed to have a significant impact on the miRNA expression profile of Exos derived from plasma and BALF in SAP rats. NOVEL-rno-miR-29a-3p, which is specific to Exos, and is derived from BALF, may play a crucial role in the therapeutic efficacy of EMO.
Topics: Rats; Animals; Pancreatitis; Emodin; Acute Disease; Exosomes; Acute Lung Injury; MicroRNAs
PubMed: 38026528
DOI: 10.2147/IJN.S428924 -
Indian Journal of Gastroenterology :... Aug 2023Intra-abdominal hypertension (IAH) and abdominal compartment syndrome (ACS) are underrecognized entities in patients of acute pancreatitis (AP). IAH develops in 30%... (Review)
Review
Intra-abdominal hypertension (IAH) and abdominal compartment syndrome (ACS) are underrecognized entities in patients of acute pancreatitis (AP). IAH develops in 30% to 60% and ACS in 15% to 30% of all AP patients and they are markers of severe disease with high morbidity and mortality. The detrimental effect of increased IAP has been recognized in several organ systems, including the central nervous system, cardiovascular, respiratory, renal and gastrointestinal systems. The pathophysiology of IAH/ACS development in patients with AP is multifactorial. Pathogenetic mechanisms include over-zealous fluid management, visceral edema, ileus, peripancreatic fluid collections, ascites and retroperitoneal edema. Laboratory and imaging markers are neither sensitive nor specific enough to detect IAH/ACS and intra-abdominal pressure (IAP) monitoring is vital for early diagnosis and the management of patients of AP with IAH/ACS. The treatment of IAH/ACS requires a multi-modality approach with both medical and surgical attention. Medical management consists of nasogastric/rectal decompression, prokinetics, fluid management and diuretics or hemodialysis. If conservative management is not effective, percutaneous drainage of fluid collection or ascites is necessary. Despite medical management, if IAP worsens, surgical decompression is warranted. The review discusses the relevance of IAH/ACS in patients of AP and its management.
Topics: Humans; Intra-Abdominal Hypertension; Pancreatitis; Ascites; Acute Disease; Gastrointestinal Tract
PubMed: 37418050
DOI: 10.1007/s12664-023-01407-y -
BMC Gastroenterology Oct 2023Severe hypertriglyceridemia (HTG) is the third most common cause of acute pancreatitis (AP) and is involved in its pathogenesis. Chylomicrons increase blood viscosity... (Review)
Review
Severe hypertriglyceridemia (HTG) is the third most common cause of acute pancreatitis (AP) and is involved in its pathogenesis. Chylomicrons increase blood viscosity and induce ischemia, while free fatty acids induce inflammation and distant organ damage. Conservative treatment options include fasting and insulin; limited evidence shows their comparable efficacy. Plasma exchange might provide more rapid lowering of triglycerides and amelioration of systemic effects of severe AP. Available data from controlled studies show only moderately faster lowering of triglycerides with apheresis (about 70% vs. 50% with conservative treatment within 24 h) and limited data from non-randomized studies show no improvement in clinical outcomes. New evidence is expected soon from ongoing large randomized trials. Until then, insulin may be used in mild HTG-AP and plasma exchange should be considered only in severe HTG-AP, especially if the decline of triglycerides with conservative treatment is slow, and in HTG-AP during pregnancy.
Topics: Pregnancy; Female; Humans; Insulin; Pancreatitis; Acute Disease; Blood Component Removal; Hypertriglyceridemia; Triglycerides
PubMed: 37789261
DOI: 10.1186/s12876-023-02957-3 -
BMJ Case Reports Oct 2023Recurrent acute pancreatitis poses a significant challenge in clinical management. In this case, a young, obese woman with metabolic syndrome presented with her third...
Recurrent acute pancreatitis poses a significant challenge in clinical management. In this case, a young, obese woman with metabolic syndrome presented with her third episode of acute pancreatitis within a span of 4 months. Due to unavailability, plasmapheresis could not be performed, and the patient was managed solely with pharmacological therapy. Initial evaluation revealed abdominal pain, tenderness and elevated laboratory markers. CT scan findings indicated pancreatic and peripancreatic oedema. Further investigations highlighted the presence of hypertriglyceridaemia and hypocalcaemia. As the patient was using oral contraceptive pills (OCP), it was crucial to consider their potential role in causing hypertriglyceridaemia. Consequently, the patient was advised to discontinue OCP use. Despite the lack of plasmapheresis, intensive medical management, including medication and lifestyle modifications, showed positive results. This case underscores the importance of recognising the association between OCP, hypertriglyceridaemia and recurrent pancreatitis in patients with metabolic syndrome.
Topics: Female; Humans; Pancreatitis; Metabolic Syndrome; Acute Disease; Hypertriglyceridemia; Contraceptives, Oral
PubMed: 37798042
DOI: 10.1136/bcr-2023-257067 -
Lipids in Health and Disease Dec 2023The prevalence of hypertriglyceridaemia-induced acute pancreatitis (HTG-AP) is increasing due to improvements in living standards and dietary changes. However,...
BACKGROUND
The prevalence of hypertriglyceridaemia-induced acute pancreatitis (HTG-AP) is increasing due to improvements in living standards and dietary changes. However, currently, there is no clinical multifactor scoring system specific to HTG-AP. This study aimed to screen the predictors of HTG-SAP and combine several indicators to establish and validate a visual model for the early prediction of HTG-SAP.
METHODS
The clinical data of 266 patients with HTG-SAP were analysed. Patients were classified into severe (N = 42) and non-severe (N = 224) groups according to the Atlanta classification criteria. Several statistical analyses, including one-way analysis, least absolute shrinkage with selection operator (LASSO) regression model, and binary logistic regression analysis, were used to evaluate the data.
RESULTS
The univariate analysis showed that several factors showed no statistically significant differences, including the number of episodes of pancreatitis, abdominal pain score, and several blood diagnostic markers, such as lactate dehydrogenase (LDH), serum calcium (Ca), C-reactive protein (CRP), and the incidence of pleural effusion, between the two groups (P < 0.000). LASSO regression analysis identified six candidate predictors: CRP, LDH, Ca, procalcitonin (PCT), ascites, and Balthazar computed tomography grade. Binary logistic regression multivariate analysis showed that CRP, LDH, Ca, and ascites were independent predictors of HTG-SAP, and the area under the curve (AUC) values were 0.886, 0.893, 0.872, and 0.850, respectively. The AUC of the newly established HTG-SAP model was 0.960 (95% confidence interval: 0.936-0.983), which was higher than that of the bedside index for severity in acute pancreatitis (BISAP) score, modified CT severity index, Ranson score, and Japanese severity score (JSS) CT grade (AUC: 0.794, 0.796, 0.894 and 0.764, respectively). The differences were significant (P < 0.01), except for the JSS prognostic indicators (P = 0.130). The Hosmer-Lemeshow test showed that the predictive results of the model were highly consistent with the actual situation (P > 0.05). The decision curve analysis plot suggested that clinical intervention can benefit patients when the model predicts that they are at risk for developing HTG-SAP.
CONCLUSIONS
CRP, LDH, Ca, and ascites are independent predictors of HTG-SAP. The prediction model constructed based on these indicators has a high accuracy, sensitivity, consistency, and practicability in predicting HTG-SAP.
Topics: Humans; Pancreatitis; Severity of Illness Index; Acute Disease; Ascites; Retrospective Studies; Prognosis; Biomarkers; C-Reactive Protein; Hypertriglyceridemia
PubMed: 38066493
DOI: 10.1186/s12944-023-01984-z -
Nutrients Oct 2023The ketogenic diet (KD) has emerged as a popular weight-loss regimen in recent years. However, it has been confirmed to elicit a mild inflammatory response in the...
The ketogenic diet (KD) has emerged as a popular weight-loss regimen in recent years. However, it has been confirmed to elicit a mild inflammatory response in the intestinal epithelium and exacerbate various digestive disorders. The severity of acute pancreatitis (AP) is closely associated with the permeability of the intestinal epithelium and gut microbiota, yet the impact of KD on acute pancreatitis remains unclear. In this study, we induced acute pancreatitis using L-arginine in mice fed with KD. The consumption of KD resulted in an elevation of lipopolysaccharide-binding protein (LBP), accompanied by upregulated cytokines (IL-1a, IL-5, IL-12, MIP-1a, and Rantes) and dysfunction of the intestinal barrier both in control and AP groups. The bloom of and was observed as a specific profile of gut microbiota in KD-fed mice with AP, along with downregulation of carbohydrate metabolism and depletion of short-chain fatty acids (SCFAs). Antibiotic decontamination reduced the cytokine storm and tissue necrosis but did not significantly improve the integrity of the intestinal barrier in KD-fed mice with AP. The overgrowth of in feces and in colonic tissue appears to explain the limitation of antibiotic treatment to aggravate acute pancreatitis. Butyrate supplementation attenuated the depletion of SCFAs, promoted the intestinal barrier, and reduced the necrotic area in AP mice. The bloom of and the correlated increase in tryptophan metabolism explain the therapeutic potential of butyrate supplements for acute pancreatitis. In conclusion, our findings suggest that the ketogenic diet exacerbates acute pancreatitis through its impact on the gut microbiota and subsequent disruption of the intestinal barrier, while butyrate supplementation reverses this effect.
Topics: Mice; Animals; Butyrates; Pancreatitis; Diet, Ketogenic; Acute Disease; Fatty Acids, Volatile; Mice, Inbred C57BL
PubMed: 37892502
DOI: 10.3390/nu15204427 -
BMC Surgery Sep 2023This study aimed to construct predictive models for the risk of sepsis in patients with Acute pancreatitis (AP) using machine learning methods and compared optimal one... (Randomized Controlled Trial)
Randomized Controlled Trial
BACKGROUND
This study aimed to construct predictive models for the risk of sepsis in patients with Acute pancreatitis (AP) using machine learning methods and compared optimal one with the logistic regression (LR) model and scoring systems.
METHODS
In this retrospective cohort study, data were collected from the Medical Information Mart for Intensive Care III (MIMIC III) database between 2001 and 2012 and the MIMIC IV database between 2008 and 2019. Patients were randomly divided into training and test sets (8:2). The least absolute shrinkage and selection operator (LASSO) regression plus 5-fold cross-validation were used to screen and confirm the predictive factors. Based on the selected predictive factors, 6 machine learning models were constructed, including support vector machine (SVM), K-nearest neighbour (KNN), multi-layer perceptron (MLP), LR, gradient boosting decision tree (GBDT) and adaptive enhancement algorithm (AdaBoost). The models and scoring systems were evaluated and compared using sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), accuracy, and the area under the curve (AUC).
RESULTS
A total of 1, 672 patients were eligible for participation. In the training set, 261 AP patients (19.51%) were diagnosed with sepsis. The predictive factors for the risk of sepsis in AP patients included age, insurance, vasopressors, mechanical ventilation, Glasgow Coma Scale (GCS), heart rate, respiratory rate, temperature, SpO2, platelet, red blood cell distribution width (RDW), International Normalized Ratio (INR), and blood urea nitrogen (BUN). The AUC of the GBDT model for sepsis prediction in the AP patients in the testing set was 0.985. The GBDT model showed better performance in sepsis prediction than the LR, systemic inflammatory response syndrome (SIRS) score, bedside index for severity in acute pancreatitis (BISAP) score, sequential organ failure assessment (SOFA) score, quick-SOFA (qSOFA), and simplified acute physiology score II (SAPS II).
CONCLUSION
The present findings suggest that compared to the classical LR model and SOFA, qSOFA, SAPS II, SIRS, and BISAP scores, the machine learning model-GBDT model had a better performance in predicting sepsis in the AP patients, which is a useful tool for early identification of high-risk patients and timely clinical interventions.
Topics: Humans; Acute Disease; Retrospective Studies; Pancreatitis; Sepsis; Systemic Inflammatory Response Syndrome
PubMed: 37658375
DOI: 10.1186/s12893-023-02151-y -
Nature Reviews. Gastroenterology &... Nov 2023
Topics: Humans; Pancreatitis; Acute Disease; Severity of Illness Index
PubMed: 37344583
DOI: 10.1038/s41575-023-00808-w -
The American Surgeon Nov 2023Acute pancreatitis is a common diagnosis which requires a prompt diagnosis and management by a multidisciplinary team with often general surgeons as the initial... (Review)
Review
BACKGROUND
Acute pancreatitis is a common diagnosis which requires a prompt diagnosis and management by a multidisciplinary team with often general surgeons as the initial provider. Morbidity and mortality from an acute pancreatitis can be very high, especially in patients with a progressive worsening acute pancreatitis developing into pancreatic necrosis in the setting of multiple underlying medical comorbidities.
PURPOSE
In this review paper, we discuss all aspects of acute pancreatitis and its potential complications, as well providing updates in the modern management of necrotizing pancreatitis. Practicing general surgeons need to be aware of the evolution in the diagnosis and treatment of this disease.
RESEARCH DESIGN
We conducted a review of literature of evidence and management options for acute pancreatitis, including all published manuscripts from 2012 to 2022.
RESULTS
Diagnosis and management of this disease can vary among specialiaties. The decision to utilize a percutaneous or endoscopic techniques are relevant points of discussion within general surgery and gastroenterology societies. In the past decade, the use of advanced endoscopic interventions has slowly replaced conventional open surgery in managing complications of acute severe pancreatitis.
CONCLUSION
Acute pancreatitis is a disease which requires multidisciplinary approach with evolving treatment options to less invasive nonsurgical methods.
Topics: Humans; Pancreatitis, Acute Necrotizing; Acute Disease; Endoscopy; Drainage; Treatment Outcome
PubMed: 36940369
DOI: 10.1177/00031348231156781