Presence of hepcidin-25 in biological fluids: Bile,ascitic and pleural fluids

AIM: To examine body fluids such as ascitic fluid (AF),saliva,bile and pleural effusions for the presence of hepcidin using a novel radioimmunoassay (RIA).METHODS: Serum samples were collected from 25 healthy volunteers (mean age: 36 ± 11.9 years,11 males,14 females).In addition bile was obtained from 12 patients undergoing endoscopic retrograde cholangiopancreatography (mean age: 66.9 ± 16.7 years,M:F = 5:7).Saliva was collected from 17 healthy volunteers (mean age: 35 ± 9.9 years,M:F = 8:9).Pleural and AF were collected from 11 and 16 patients [(mean age: 72 ± 20.5 years,M:F = 7:4) and (mean age: 67.32 ± 15.2 years,M:F = 12:4)],respectively.All biological fluid samples (serum,exudative and transudative fluids) were tested for the presence of hepcidin-25 molecule using RIA.RESULTS: Hepcidin-25 was detected in all biological fluids tested.The mean ± SD hepcidin-25 in serum was 15.68 ± 15.7 ng/mL,bile 7.37 ± 7.4 ng/mL,saliva 3.4 ± 2.8 ng/mL,exudative fluid 65.64 ± 96.82 ng/mL and transudative fluid 14.1 ± 17.8 ng/mL.CONCLUSION: We provide clear evidence that hepcidin-25 is present in bile,saliva,pleural and ascitic fluids.Hepcidin is likely to play a role here in innate immunity.

Ascitic fluid analysis for diagnosis and monitoring of spontaneous bacterial peritonitis

Polymorphonuclear (PMN) cell count in the ascitic fluid is essential for the diagnosis and management of spontaneous bacterial peritonitis (SBP). To date, PMN cell count is routinely performed by traditional manual counting. However, this method is time-consuming, costly, and not always timely available. Therefore, considerable efforts have been made in recent years to develop an alternative test for a more rapid diagnosis and monitoring of SBP. The use of urinary reagent strips was proposed to achieve an "instant" bedside diagnosis of SBP. A series of reports evaluated the urine strip test for SBP diagnosis and reported promising results. However, a recent large multicenter study revealed a surprising lack of diagnostic effi cacy of the urine screening test for SBP diagnosis. Another method, more recently proposed as an alternative to the manual PMN count, is the measurement of lactoferrin in ascitic fluid, but the data available on the diagnostic value of this test are limited to a single study. However, both urinary reagent strips and ascitic lactoferrin tests are qualitative methods and need, therefore, to be further confirmed by standard cytology of the ascitic fluid. To date, the only quantitative method proposed as a valid alternative to manual PMN counting is automated blood cell counters, commonly used in all laboratories for blood cell counting. Data available in the literature on the diagnostic performance of this method are limited but very promising, and this tool seems to have the potential to replace the manual counting method.

Analysis of chromosomes in ascitic fluid cells of ovarian carcinoma

Chromosomes in 1620 metaphases of ascitic fluid cells in 20 cases of ovariancarcinoma were analyzed.The results showed that there were marked structuralaberrations aside from significant increase in chromosomal numerical aberrations(85.2%).In the ascitic fluid cells from 12 patients,15 types of marker chromosomes were found,among which t(6;14)(q21;q24)and t(2;6)(q35;p12)were more frequently noted witha rate of 7.84% and 7.59% respectively,which was significantly higher than that of othermarker chromosomes(P【0.01).The findings suggested that,besides t(6;14)(q21;q24),t(2;6)(q35;p12)may also be a specific marker chromosome of ovarian carcinoma.

DETECTION OF VEGF LEVELS IN ASCITES AND PERITONEAL FLUID

Objective: The expression of vascular endothelial growth factor (VEGF) is correlated to the invasion and metastasis of tumor cells in many clinical carcinomas. In this study, we detected soluble VEGF levels in ascites and peritoneal fluid and explored its clinical significance. Methods: A total of 91 samples were collected and divided into 5 experimental groups: petitoneal fluid of patients with benign (n=10) and malignant disease (n=14), cirrhotic ascites (n=36), tuberculous ascites (n=8) and malignant ascites (n=23). Using a sandwich enzyme-linked immunoadsorbent assay, the concentration of soluble VEGF was measured in ascites (n=67) and petitoneal fluid (n=24). Results: VEGF levels in malignant ascites were 640.74264.81 pg/ml, significantly higher than those in cirrhotic ascites, tuberculous ascites and peritoneal fluid of patients with benign and malignant disease (P<0.01, separately). However, the difference of VEGF levels among the latter 4 groups had no statistic significance (P>0.05), separately). Furthermore, VEGF levels in malignant ascites from patients with ovarian cancer were higher than those with gastric and colon cancer (P<0.01, respectively), while there was no significant difference between gastric cancer and colon cancer (P>0.05). Using VEGF level of 118.96 pg/ml as a minimum cutofflimit, the sensitivity and specificity of VEGF of this assay to diagnose malignant ascites were 91.3% and 73.9% respectively. Conclusion: The elevated levels of VEGF may be useful as an index in differential diagnosis of benign and malignant ascites. It appears that VEGF plays an important role in malignant ascites formation.

Comparative Ultrasound Review of Free Intra-Peritoneal Fluid (Ascites)

The aim of this study is to review clinical case ascites and the use of ultrasound for the detection/classification of free intra-peritoneal fluid. Current therapeutic modality is in support of ultrasound guided paracentesis/thoracocentesis as a multidisciplinary procedure for ascitic reduction. Post-surgical free intra-peritoneal fluid is a common iatrogenic complication. We present ascitic cases of diseased conditions, questionable origins (in females) following hernia reduction and laparoscopic procedures to evaluate ascitic etiology through ultrasound. Average attenuation and quadrant sum of largest fluid pocket ultrasound (frozen) images were measured. 12 patients with free intra-peritoneal fluid had identifiable anatomical organs: liver, kidneys, urinary bladder and bowel loops. The size of maximal pocket of ascitic fluid in ill-patients was 1210/300 mm2, while fluid in subjects with non-traumatic injury was clear (free of striations) and appeared less dense.

Risk Factors Recurrence of Spontaneous Ascitic Fluid Infection (Slai) in Cirrhotic Patients

Introduction: After an episode of spontaneous infection of ascitic fluid (ISLA). The recurrence of ISLA at one year is greater than 70%. We studied the risk factors associated with the occurrence of recurrence. Patients and methods: this was a retrospective, descriptive and analytical study of patient files, hospitalized in the department for 12 months, the choice of the sample was of convenience. Results: We have 1347 patient files collected including 389 cases of cirrhosis. We had 37 files of cirrhotic patients with ISLA including 28 cures without recurrence of ISLA, 08 files of patients with recurrence of ISLA and 03 excluded, i.e. a hospital prevalence of recurrence of 0.6% and a prevalence in cirrhotic patients of 23.5%. The most common antecedents were: hospital contact recent (35.3%), the concept of iterative ascites punctures (32.3%), the presence of HCC (29.4%), hepatic encephalopathy (20.6%) and digestive hemorrhage (14.7%). In univariate analysis, recent digestive bleeding was associated with an increased risk of recurrence (OR 7.2, 95% CI 0.96 - 67.1). HBV (62.5%) is the main etiology of cirrhosis. The PNN rate at 250 - 499 mm3 (62.5%), the protein level 3 (75%). Patients on secondary prophylaxis with NORFLOXACIN were 25%. Recurrence of ISLA was treated with CEFTRIAXONE 2 g/24 hours. Conclusion: Recurrence of ISLA is serious, the predictive factors for recurrence are, hospital contact recent, the concept of iterative ascites punctures, the presence of HCC, the presence of hepatic encephalopathy and digestive bleeding.

胸腹水液基细胞学检测联合胸腹水沉淀物琼脂石蜡双包埋切片法在病理检测的价值

目的探讨与分析胸腹水液基细胞学检测联合胸腹水沉淀物琼脂石蜡双包埋切片法在病理检测的价值。方法选取2019年3月—2022年9月在乌鲁木齐市中医医院诊治的92例胸腹水患者作为研究对象,所有患者都给予胸腹水液基细胞学检测联合胸腹水沉淀物琼脂石蜡双包埋切片法,都给予病理活检,判断诊断的价值。结果在92例患者中,胸腹水液基细胞学检测判断为恶性肿瘤54例,良性肿瘤38例,胸腹水液基细胞学检测诊断恶性肿瘤的敏感度与特异度分别为85.48%、96.67%。胸腹水沉淀物琼脂石蜡双包埋切片检测判断为恶性肿瘤55例,良性肿瘤37例,胸腹水沉淀物琼脂石蜡双包埋切片检测诊断恶性肿瘤的敏感性与特异性分别为88.71%、100.00%。胸腹水液基细胞学检测联合胸腹水沉淀物琼脂石蜡双包埋切片检测判断为恶性肿瘤61例,良性肿瘤31例,胸腹水液基细胞学检测联合胸腹水沉淀物琼脂石蜡双包埋切片检测诊断恶性肿瘤的敏感度与特异度分别为98.39%、100.00%。恶性肿瘤患者的人表皮生长因子受体2、突触素、嗜铬素A表达阳性率分别为40.32%、41.94%、43.55%,与良性肿瘤患者的10.00%、13.33%、10.00%相比有显著提高,差异有统计学意义(P<0.05)。胸腹水液基细胞学检测联合胸腹水沉淀物琼脂石蜡双包埋切片法对肿瘤良恶性的诊断敏感性高于单项检测,差异有统计学意义(P<0.05),不同检测方法的诊断特异性比较,差异无统计学意义(P>0.05)。ROC曲线分析显示,胸腹水液基细胞学检测联合胸腹水沉淀物琼脂石蜡双包埋切片法对肿瘤良恶性的诊断曲线下面积为0.883。结论胸腹水液基细胞学检测联合胸腹水沉淀物琼脂石蜡双包埋切片法在病理检测中的应用能提高诊断敏感度,还可保持非常高的诊断特异度,对患者的原发肿瘤良恶性判定具有很好的价值。

Aberrant gene methylation in the peritoneal fluid is a risk factor predicting peritoneal recurrence in gastric cancer

AIM:To investigate whether gene methylation in the peritoneal fluid (PF) predicts peritoneal recurrence in gastric cancer patients.METHODS: The gene methylation of CHFR (checkpoint with forkhead and ring finger domains), p16, RUNX3 (runt-related transcription factor 3), E-cadherin, hMLH1 (mutL homolog 1), ABCG2 (ATP-binding cassette, sub-family G, member 2) and BNIP3 (BCL2/adenovirus E1B 19 kDa interacting protein 3) were analyzed in 80 specimens of PF by quantitative methylation-specific polymerase chain reaction (PCR). Eighty patients were divided into 3 groups; Group A (n=35):the depth of cancer invasion was less than the muscularis propria; Group B (n=31): the depth of cancer invasion was beyond the muscularis propria. Both group A and B were diagnosed as no cancer cells in peritoneal cytology and histology; Group C (n=14): disseminated nodule was histologically diagnosed or cancer cells were cytologically defi ned in the peritoneal cavity.RESULTS: The positive rates of methylation in CHFR, E-cadherin and BNIP3 were significantly different among the 3 groups and increased in order of group A, B and C (0%,0% and 21% in CHFR, P<0.05; 20%, 45% and 50% in E-cadherin, P<0.05;26%,35% and 71% in BNIP3, P<0.05). In addition, the multigene methylation rate among CHFR, E-cadherin and BNIP3 was correlated with group A, B and C (9%,19% and 57%, P<0.001). Moreover, the prognosis was analyzed in group B, excluding 3 patients who underwent a non-curative resection. Two of the 5 patients with multigene methylation showed peritoneal recurrence after surgery, while those without or with a single gene methylation did not experience recurrence (P<0.05).CONCLUSION: This study suggested that gene methylation in the PF could detect occult neoplastic cells in the peritoneum and might be a risk factor for peritoneal metastasis.

Mean platelet volume as a novel predictor of systematic inflammatory response in cirrhotic patients with culturenegative neutrocytic ascites

AIM: To identify a mean platelet volume(MPV) cutoff value which should be able to predict the presence of bacterial infection.METHODS: An observational, analytic, retrospective study. We evaluated medical records of cirrhotic patients who were hospitalized from January 2012 to January 2014 at the Gastroenterology Department of "Hospital General de México Dr. Eduardo Liceaga", we included 51 cirrhotic patients with ascites fluid infection(AFI), and 50 non-infected cirrhotic patients as control group. Receiver operator characteristic curves were used to identify the best cutoff value of several parameters from hematic cytometry, including MPV, to predict the presence of ascites fluid infection.RESULTS: Of the 51 cases with AFI, 48 patients(94.1%) had culture-negative neutrocytic ascites(CNNA), 2(3.9%) had bacterial ascites, and one(2%)had spontaneous bacterial peritonitis. Infected patients had greater count of leucocytes and polymorphonuclear cells, greater levels of MPV and cardiac frequency(P < 0.0001), and lower mean arterial pressure compared with non-infected patients(P = 0.009). Leucocytes, polymorphonuclear count, MPV and cardiac frequency resulted to be good or very good predictive variables of presence of AFI in cirrhotic patients(area under the receiving operating characteristic > 0.80). A cutoff MPV value of 8.3 fl was the best to discriminate between cirrhotic patients with AFI and those without infection. CONCLUSION: Our results support that MPV can be an useful predictor of systemic inflammatory response syndrome in cirrhotic patients with AFI, particularly CNNA.

AFTP、CRP、SAA在腹腔积液鉴别诊断中的价值

目的探讨腹腔积液总蛋白(ascitic fluid total protein,AFTP)、C反应蛋白(C-reactive protein,CRP)、血清淀粉样蛋白A(serum amyloid A,SAA)在良恶性腹腔积液鉴别诊断中的临床意义。方法回顾性分析2018年1月~2021年12月以腹腔积液原因待查收入武汉大学人民医院消化科及感染科的210例(良性腹腔积液133例,恶性腹腔积液77例)患者的病例资料。并采用受试者操作特征(receiver operating characteristic,ROC)曲线评价AFTP、CRP、SAA对良恶性腹腔积液的诊断价值。结果恶性腹腔积液组患者的AFTP、CRP、SAA均高于良性腹腔积液组,差异均有统计学意义(P均<0.05)。AFTP、CRP、SAA的ROC曲线下面积分别为0.764、0.742、0.750。AFTP、CRP、SAA诊断恶性腹腔积液的敏感度分别为67.5%、88.3%、83.1%,特异性分别为78.9%、54.1%、69.2%。良性腹腔积液组中非门脉高压性腹腔积液组AFTP、CRP、SAA均高于门脉高压组,差异均有统计学意义(P<0.05),3项联合检测敏感度为90.9%,特异性为95.5%。其他原因恶性腹腔积液组中AFTP、SAA均高于肝癌恶性腹腔积液组,差异均有统计学意义(P<0.05)。结论AFTP、CRP、SAA是鉴别良恶性腹腔积液有价值的生物学指标,在鉴别门脉高压性腹腔积液和非门脉高压性腹腔积液中具有较高的诊断价值。

胸腹水细胞蜡块制作方法的改良及应用

目的 探讨不同固定方法下制作胸腹水细胞蜡块的效果及应用价值。方法 收集2022年6月至12月厦门大学附属第一医院病理科收检的胸腹水标本,选取经细胞病理学确诊见肿瘤细胞者48例,每份标本均平分为3份,离心后沉淀物分别按以下方法固定:A组10%中性缓冲甲醛固定4 h;B组薄层液基细胞学检查指定保存液固定4 h;C组加入4%中性甲醛固定液固定5 min,离心后沉淀物加入75%乙醇,1 min后吸弃75%乙醇,加入适量的95%乙醇,室温下静置塑形2 h;C组沉淀物较大者,沿纵轴每间隔3 mm平行切开,取其切面作为包埋面。3组分别制成细胞蜡块,比较蜡块制作成功率、蜡块肉眼观、蜡块切片HE染色效果、(肺腺癌)细胞蜡块切片免疫组织化学表达效果。结果 C组细胞蜡块制作成功率显著高于A组与B组。巨检:A组与B组固定后获得的沉淀物较松散、破碎;C组固定后获得的沉淀物聚集成块、富有弹性、结构完整、可见细胞层次,可更大限度的保存标本。细胞蜡块切片HE染色镜检:C组细胞量大,染色鲜艳,细胞轮廓清晰,细胞排列清楚可见,肿瘤细胞的核仁比较明显,优于A组与B组。C组细胞蜡块切片的CK7、napsin A、TTF-1 3种抗体的免疫组织化学表达效果均较好,阳性标记清晰易判,背景干净,优于A组与B组。结论 胸腹水细胞蜡块的制作,采用甲醛液固定后联合95%乙醇塑形2 h的效果较佳,细胞蜡块制作成功率高,获得的细胞蜡块完整,蜡块切片HE染色和免疫组织化学染色效果俱佳,可提高诊断准确率。

急性胰腺炎相关腹腔积液的研究进展

急性胰腺炎(AP)相关腹腔积液是AP患者常见的并发症,与患者疾病严重程度、局部及全身并发症的发生及预后密切相关。胰腺炎相关腹腔积液产生可能来源于腹腔内血管、淋巴管及胰管的渗漏等。近年来,研究发现通过腹腔穿刺引流早期积极清除胰腺炎相关腹腔积液有助于降低全身炎症水平及缓解胰腺炎相关器官损伤,从而改善重症AP患者病情及降低病死率。但胰腺炎相关腹腔积液如何加重全身炎症反应、参与胰腺和远处器官损害,以及如何导致AP患者病情恶化,尚不完全清楚。因而,本文就AP相关腹腔积液的概况及近年来的研究做一综述,为AP病理生理过程及治疗的探索提供一些方向。

Ascitic Fluid Analysis in the Differential Diagnosis of Ascites:Focus on Cirrhotic Ascites

Ascites is the pathologic accumulation of fluid within the peritoneal cavity.Because many diseases can cause ascites,in particular cirrhosis,samples of ascitic fluid are commonly analyzed in order to develop a differential diagnosis.The concept of transudate versus exudate,as determined by total protein measurements,is outdated and the use of serumascites albumin gradient as an indicator of portal hypertension is more accurate.Lactate dehydrogenase (LDH),vascular endothelial growth factor (VEGF),and other tumor markers can be helpful in distinguishing between malignant and benign conditions.Glucose and adenosine deaminase levels may support a diagnosis of tuberculous disease,and amylase level may indicate a diagnosis of pancreatitis.Given the specificity and sensitivity of laboratory results,accurate diagnosis should be based on both laboratory data and clinical iudgment.

从气血津液理论探讨鼓胀分期诊疗思路

鼓胀,根据其特征表现,多可归类于现代医学中的肝硬化腹水,其病位主在肝脾,久则及肾,其致病之因虽多,但基本病机总属肝脾肾受损,气滞、血瘀、水停于腹中。鼓胀病程可分为初期、中期、晚期,各期气、血、津液之偏盛均有所不同,鼓胀初期,多以气滞、水湿为主,故应注重于行气利水;病至中期,多兼有血瘀,故应注重于活血利水;晚期,损及肾阳,阳气亏损,水湿不化,故应注重于益气利水,佐以温补阳气。因此运用气、血、津液理论对鼓胀进行分期论治,可为其治疗提供一种新的思路。

一例股骨粗隆间骨折伴肝硬化腹水老年患者的护理

通过对一例股骨粗隆间骨折伴肝硬化腹水老年患者治疗过程的护理要点进行观察和总结,探讨股骨粗隆间骨折伴肝硬化腹水老年患者护理要点。护理要点包括:术前全面评估患者的病情,积极做好疼痛褥疮护理,避免泌尿系统感染,做好术前宣教工作,配合用药饮食护理,改善术前患者的整体状况;术后密切观察生命体征、病情变化,除专科护理外要纠正营养不良,控制体液过多以及并发症的预防,鼓励早期功能锻炼;提倡将个体化、渐进性、全面性的护理理念融入护理日常工作中。

常规浆膜腔积液细胞检验现状与质量控制

目的通过浆膜腔积液细胞图片调查了解各级医院常规浆膜腔积液细胞检验现状,提高浆膜腔积液细胞检验质量。方法经浓缩、推片及瑞特-吉姆萨混合染色后摄制细胞图片,精选细胞图片40张,随机分发给浙江省内的各级医院,让其对40张细胞图片进行识别并反馈结果。此调查在第1次进行后进行讲解及培训,再间隔进行第2次、第3次调查。结果3次调查结果发现除核异质细胞、细菌、多倍体及淋巴瘤细胞回报正确率仍较低外,其余回报正确率均有明显提高(P<0.01),所有参加单位的平均回报正确率从首次的43.2%上升到第3次的67.3%(P<0.01)。特别是连续参加的49个单位正确率上升较快,其中三甲医院的准确率由45.4%上升至72.6%,三乙医院由44.9%上升至68.3%,二级医院由38.6%上升至65.9%。结论通过前后3次图片调查及质量控制说明基层医院常规浆膜腔积液细胞检测存在的问题应引起重视,细胞图片质控是提高基层医院常规浆膜腔积液细胞检测技能的一个值得推广的有效方法。

浆膜腔积液检出白血病细胞的观察分析

目的 对 1989年 5月～ 2 0 0 2年 4月收集到的浆膜腔积液中查见白血病细胞的 10例患者的临床及实验资料进行回顾分析。方法 浆膜腔积液涂片制作采用推片法 ,涂片染色采用瑞吉染色 ,有经验的细胞学检验人员鉴定白血病细胞。结果 查见白血病细胞 10例 ,其中急性粒 单核细胞白血病 (M4)、慢性粒细胞白血病(CML)、多发性骨髓瘤 (MM)各 2例 ,急性粒细胞白血病 (M2 )、急性单核细胞白血病 (M5)、慢性粒 单细胞白血病(CMMOL)、急性淋巴细胞白血病 (ALL)各 1例 ,均为渗出液 ,80 %为血性。检出白血病细胞的患者生存时间从7d～ 14个月 ,中位生存期为 1个月 ,平均生存期为 3.8个月。结论 浆膜腔积液中查见白血病细胞则提示疾病预后不良 ,开展细胞形态学检查十分重要 。

中华绒螯蟹腹水病病原分析

从六安地区患腹水病的中华绒螯蟹(Eriochersinensis)体内分离到一株病原菌(HX4菌株),经API/ATB半自动化鉴定和分子遗传学鉴定,确定为拟态弧菌(V mimicus)。应用PCR技术、电镜技术、组织细胞模型和动物实验对该菌的毒素共调菌毛(ToxinCoregulatedPilus,TCP)、外毒素和内毒素等毒力因子研究的结果表明,HX4菌株为TCP+株,在pH6 7定居因子培养基中,30℃需氧培养条件下可较好表达TCP;TCP+菌对肠管的黏附率为(32 19±0 14)%、对HEp 2细胞的黏附菌数为16 03±4 66、对中华绒螯蟹的毒力(LD50)为2 08×106CFU·mL-1,均显著高于TCP-菌,其相应值分别为(0 52±0 06)%、6 8±2 06和2 09×107CFU·mL-1;外毒素具有很强的细胞毒性(TCID500 25μg)、肠毒性(皮肤蓝斑直径15mm)和中华绒螯蟹致死性(LD501 40μg),而内毒素对中华绒螯蟹基本无致病性。由此可见,TCP和外毒素是拟态弧菌HX4菌株的2种重要毒力因子,在细菌致病过程中起重要作用。

腹水浓缩回输治疗肝硬变顽固性腹水

目的:探讨肝硬变顽固性腹水的治疗及影响疗效的因素。方法:用HAUF-B型腹水超滤机及PSU-I型聚砜中空纤维超滤器,对236例肝炎肝硬变顽固性腹水患者,进行自体腹水浓缩回输治疗。结果:治疗后腹围平均减少9.2±3.8cm,清除腹水量3787±1426ml,尿量平均增加582.4±108.5ml/24h,总有效率为68.6％。结论:自体腹水浓缩回输是治疗肝炎肝硬变顽固性腹水的有效方法。

胰腺炎相关腹水对空肠运动和肠组织含nNOS神经的影响

目的探讨急性胰腺炎相关腹水对在体胃肠平滑肌电生理和运动的影响,以及对肠道神经型一氧化氮合酶(nNOS)神经的影响。方法以5%牛磺胆酸钠溶液逆行注入胰胆管制作急性胰腺炎(AP)模型,24h后收集腹腔液低温离心取上清液作为胰腺炎相关腹水。24只Wistar大鼠随机分为正常对照、实验对照、腹水模型组和Nω-硝基-L-精氨酸(L-NNA)治疗组。用Maclab数据分析系统,同时记录肠运动和电信号。记录后取各组距幽门15cm的空肠全层标本,用链霉菌抗生物素蛋白-过氧化酶连接法(SP法)做nNOS免疫组化染色。结果正常组与实验对照组的空肠运动频率和平均振幅比较无明显差异;慢波峰值频率和平均振幅与正常组比较差异无统计学意义(P>0.05);腹水组与实验对照组比较运动频率和平均振幅均明显降低(P<0.05);慢波峰值频率和平均振幅与正常组比较明显降低,差异有统计学意义(P<0.05),并伴有明显节律紊乱;L-NNA治疗组慢波频率和运动频率均恢复。反映空肠收缩的运动指标和慢波平均振幅指标虽然有一定的恢复,但与腹水组比较差异无统计学意义(P>0.05)。正常肌间神经丛和黏膜下层可见nNOS阳性神经元和神经纤维,腹水组与实验对照组比较,神经元、神经纤维着色程度加深,差异有统计学意义(P<0.05)。结论胰腺炎相关腹水可引起胃肠动力抑制和胃肠电节律紊乱。胰腺炎相关腹水的这种抑制作用可能部分通过增加肠壁肌间神经丛和黏膜下层非肾上腺非胆碱能(NANC)神经中nNOS的活性来完成。