Objective To study the effects of endothelin (ET) on acute pancreatitis in rats. Methods The acute edematous pancreatitis (AEP) and hemorrhagic necrotizing pancreatitis (AHNP) model of rats were induced by cerulein and dextran-110 and endothelin-1 was administered on AEP rats via intravenous injection. Serum amylase, plasma ET and 6-Keto-PGF1α, pancreas hostologic observation were determined. Results The serum concentration of amylase increased markedly in AHNP rats, and there was a significant difference between AHNP and AEP (Ｐ＜0.01). A dose of extrinsic ET-1 may induce the conversion of AEP to AHNP in rats. The degree of pancreatic damage correlates positively with the level of the plasma ET. Conclusion Endothelin might take part in the development of acute pancreatitis, and play a key role in the conversion of AEP to AHNP.
Objective To explore the effect of artemisinin on the apoptosis of pancreas acinar cells in acute pancreatitis (AP), and to study whether artemisinin can relieve the severity of AP. Methods ① In vivo experiment: twenty one Wistar rats were divided into the following 3 groups randomly: the normal control group, the AP group and the artemisinin group. The model of AP was established by injecting cerulein into the peritoneal cavity of rat. After establishment of AP in the artemisinin group, artemisinin was injected into the peritoneal cavity. Meanwhile normal saline was injected into the peritoneal cavity of rats of the normal control group and the AP group. The apoptosis of pancreas acinar cell was detected by terminal deoxynucleotidyl transferase mediated nick end labeling (TUNEL). The activity of myeloperoxidase was detected by absorption spectrometry. ② In vitro experiment: the pancreas acinar cells of normal rats were isolated through twostep enzyme digestion, and cultured. These acinar cells were divided into 3 groups: the normal control group, the AP group and the artemisinin group. Then, the cells of AP group were cocultured with cerulein, and those of the artemisinin group were cocultured with cerulein and artemisinin. The apoptosis of pancreas acinar cells were detected by AO dyeing and the measurement of the activity of caspase3. And the activity of LDH and AMS in the culture medium of each group were measured. Results ① In vivo: the apoptosis index of the artemisinin group was sigificantly increased and the activity of myeloperoxidase was obviously decreased compared with the AP group (P＜0.05). ② In vitro: the apoptosis index and the activity of caspase3 of the artemisinin group were significantly increased compared with the AP group (P＜0.05); the activities of LDH and AMS of the artemisinin group were more decreased than those of the AP group (P＜0.05). Conclusion Artemisinin could contribute to the apoptosis of rat pancreas acinar cells, decrease the releasing of trypsogen, alleviate the activation of neutrophil and relieve the severity of AP.
In order to choose the appropriate antibiotics for treating secondary pancreatic infection, permeability of antibiotics to pancreatic tissue was investigated on experimental dogs with acute hemorrhagic necrotizing pancreatitis. The concentrations of 8 different antibiotics were determined in the blood and the pancreatic tissue using highperformance liquid chromatography. Pancreatic tissue permeability of Cefotaxime, Ofloxacin, Amikacin, Piperacllin, Cefoperazone, Ampicillin, Metronidazole and Ciprofloxacin was 12%, 19%, 20%, 46%, 55%, 63%, 71% and 132% respectively. The study shows that this eight antibiotics have different permeability to the pancreatic tissue. Such observations support the existence of a bloodpancreas barrier, which acts to restrict the permeation of antibiotics into the pancreas. The results suggest that antibiotics with high permeability rate be used to treat the patient with secondary pancreatic infection.
The aim of this study was to investigate the role of tumor necrosis factor (TNF), interleukin-6(IL-6), C-reactive protein (CRP) in pancreatitis and its systemic complications. Thirty six patients with acute pancreatitis were studied, 12 with mild disease, and 24 severe disease, of whom 9 developed systemic complications. TNF, IL-6, CRP in these patients with pancreatitis was assessed during the first, 4th, 8th days of admission. The serum concentration of TNF, IL-6, CRP were significantly increased, and significantly higher in complicated group than in mild group and severe group. These findings suggest that proinflammatory cytokines play a central role in the pathophysiology of the disease, the host systemic response to pancreatic inflammation and the level of the response did relate to the development of organ dysfunction.
【Abstract】Objective To investigate the role of interleukin-10（IL-10） and interleukin-18 （IL-18） in the pathogenesis of acute lung injury in experimental severe acute pancreatitis.Methods Forty-eight SD rats were divided into control group and SAP group by the random data table. The model of experimental severe acute pancreatitis was established by injection of 3.5% sodium taurocholate into the bili-pancreatic duct. Lung wet weight index, ascities and level of serum amylase, IL-10 and IL-18 were quantitatively measured in different time. Intrapulmonary expressions of IL-10 mRNA and IL-18 mRNA were detected by semiquantitative RTPCR. The histopathology of pancreas and lung were observed under the light microscope.Results Lung wet weight index, ascities, level of serum amylase, IL-10 and IL-18, intrapulmonary expressions of IL-10 mRNA and IL-18 mRNA were significantly increased in SAP group (P＜0.01). The level of serum IL-18 and intrapulmonary expression of IL-18mRNA are positively correlated with lung wet weight index （r=0.68,P＜0.01; r=0.72,P＜0.01） and lung injury score （r=0.74,P＜0.01; r=0.79,P＜0.01) respectively, whereas the level of serum IL-10 and intrapulmonary expression of IL-10 mRNA are negatively correlated with lung wet weight index（r=-0.62,P＜0.01; r=-0.69,P＜0.01） and lung injury score（r=-0.66,P＜0.01; r=-0.60,P＜0.01）. Conclusion IL-18 may play a key role in the pathogenesis of acute lung injury in experimental severe acute pancreatitis, and IL-10 exerts the protection role in this process.
ObjectiveTo investigate the clinical characteristics of pancreatitis, panniculitis, and polyarthritis syndrome (PPP syndrome). MethodsA patient with PPP syndrome in July 2013 was reported. The clinical features of 33 cases of PPP syndrome at home and abroad were reviewed. ResultsOur patient with panniculitis and arthritis as the first manifestation had few abdominal symptoms despite high serum levels of pancreatic enzymes. In the 34 PPP cases, 70.6% (24/34) had absent or mild abdominal symptoms, easily leading to misdiagnosis. Multi-joint involvement was more common, and in almost 1/3 of the patients, joint symptoms with poor NSAIDs and/or hormonal responses predated the identification of pancreatic disease. Panniculitis biopsy found characteristic "ghost cells". Ten patients died of complications of pancreatic disease (including 2 cases of cancer), and the mortality rate was as high as 29.4% (10/34). ConclusionPPP syndrome with mild abdominal symptoms and high mortality should be taken for the treatment of pancreatic disease, to prevent misdiagnosis and mistreatment.
OBJECTIVE To observe the effects of basic fibroblast growth factor (bFGF) on repairing injury of intestinal mucosa in acute necrotic pancreatitis (ANP). METHODS Sixteen dogs of ANP animal model were made by injection of 5% sodium taurocholate (0.5 ml/kg) with 3,000 U/kg trypsin into the pancreatic duct. The mucosa structure, content of protein, DNA and malondiethylaldehyde (MDA) were observed after ANP and treatment with bFGF, and the plasma lipopolysaccharide and endothelin-1 were detected. The organs of dogs were made to bacterial culture. Ileal mucosa was collected for histological and ultrastructural studies. RESULTS The results showed that after treatment with bFGF, the injury of intestinal mucosa in ANP was abated. The length, height and area of mucosa microvillus, the content of DNA and protein of ileal mucosa were significantly increased, while the plasma endothelin-1 and lipopolysaccharide were reduced. The organ bacterial translocation rate was also decreased in 50%. CONCLUSION bFGF has good effects on abating injury of intestinal mucosa, protecting gut barrier function, reducing the incidence of lipopolysaccharide and bacterial translocation after ANP.
Integrated traditional Chinese and Western medicine has been used to treat acute pancreatitis (AP) for more than 50 years. It has become a dominant and specialized disease treated by integrated traditional Chinese and Western medicine. After many years of clinical practice, a relatively mature and complete treatment system has been formed. Therefore, it was proposed by the Chinese Society of Integrated Traditional Chinese and Western Medicine, the Chinese Medical Association, and the Chinese Association of Traditional Chinese Medicine to update and formulate the “Guidelines for the Diagnosis and Treatment of Acute Pancreatitis with Integrated Traditional Chinese and Western Medicine” (2021) group standards in 2022, and “Integrated Traditional Chinese and Western Medicine Practice Guidelines for Diagnosis and Treatment of Acute Pancreatitis” finally published. The guideline condenses 25 kinds of important clinical issues, which guide to explain the diagnosis and treatment of AP in detail, focusing on the integration of traditional Chinese medicine and Western medicine in the management of AP, such as staging and syndrome differentiation, early fluid therapy, pain management, and organ function support in early stage. The advantages and the timing of early intervention of traditional Chinese medicine in AP are emphasized. This guideline also proposes suggestions on nutritional support, management of causes, treatment of late local complications and infections, as well as prevention of recurrence and follow-up strategies for long-term complications. This paper provides an interpretation of this guideline.
Objective To study the clinical protective effect of hemoperfusion combined with hemofiltration on inflammatory reaction of hyperlipidemia severe acute pancreatitis (HLSAP). Methods Thirty-seven patients with HLSAP treated between January 2012 and December 2014 were selected and divided into three groups based on different treatments. Thirteen patients were allocated into hemoperfusion combined with continuous veno-venous hemofiltration group (HP+CVVH group) and treated with hemoperfusion combined with hemofiltration; 11 patients were allocated into continuous veno-venous hemofiltration group (CVVH group) and treated with hemofiltration; and all the other patients were allocated into control group and treated with conventional treatment. The levels of blood triglyceride, C-reactive protein, tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), interleukin-8 (IL-8) and acute physiology and chronic health evaluation (APACHE)Ⅱ score of the patients after treatment were observed. The hospital stay, organ dysfunction rate and mortality of the patients were measured. Results Compared with the control group, the levels of blood triglyceride, C-reactive protein, TNF-α, IL-6, IL-8 and APACHE Ⅱ score of the patients in the HP+CVVH group and CVVH group were both significantly reduced 72 hours after therapy (P<0.05). However, the levels of blood triglyceride, C-reactive protein, TNF-α, IL-6, IL-8 and APACHE Ⅱ score of the patients in the HP+CVVH group were significantly lower than those in the CVVH group at the same time point (P<0.05). The hospital stay of the patients in the HP+CVVH group and CVVH group was significantly shorter than that in the control group (P<0.05). Compared with the CVVH group, the hospital stay of patients in the HP+CVVH group was significantly shorter (P<0.05). There was no statistical difference in organ dysfunction rate and mortality among the three groups (P>0.05). Conclusion Hemoperfusion combined with hemofiltration is an effective method for HLSAP by cleaning the inflammatory mediators availably and inhibiting the excessive inflammatory reaction.
Objective To evaluate the effect of early clinical interference strategies on preventing the conversion of acute pancreatitis to the severe form and aggravation of severe acute pancreatitis (SAP). Methods The patients with acute pancreatitis admitted to this hospital were divided into two therapeutic phases by different therapeutic methods from January 2001 to December 2008. Patients in the first phase (from January 2001 to December 2004) were treated by the routine management, and the second phase (from January 2005 to December 2008) by the routine management combined with early clinical interference strategies. Then, the ratio of conversion from acute pancreatitis to SAP and prognosis of SAP between two phases were compared. Results Compared with the first phase, the rate of aggravation of acute pancreatitis was significantly decreased in the second phase (4.48% vs. 21.18%), the average healing time of SAP, the incidences of systemic and local complications and the mortality of pancreatitis were reduced (P＜0.05). When early clinical interference strategies were performed, some adverse reaction and complications occurred in 35 cases, but without severe consequence. Conclusion Early clinical interference strategies may serve as a beneficial strategy on preventing the progression of mild acute pancreatitis to the severe form or halting the aggravation of acute pancreatitis.