Cirrhosis induced by bile duct ligation alleviates acetic acid intestinal damages in rats: Involvements of nitrergic and opioidergic systems

Background

Colitis, a colonic inflammatory condition, showed a linkage with hepatobiliary disorders such as cirrhosis. It has been reported that both endogenous opioids and nitric oxide (NO) play critical roles in colitis pathogenesis. Moreover, opioid and NO levels showed elevation in patients with cirrhosis. The aim of this study was to evaluate the effect of cirrhosis on the experimental model of colitis and the possible involvement of opioidergic/nitrergic systems in rats.

健脾清热化湿方联合美沙拉秦治疗脾虚湿热型缓解期溃疡性结肠炎的单病例随机对照试验

背景缓解期溃疡性结肠炎（UC）患者病程长,需长期维持治疗,中医药治疗缓解期UC具有一定的疗效。健脾清热化湿方治疗缓解期UC的疗效还不确切。目的采用单病例随机对照试验,评价健脾清热化湿方联合美沙拉秦对比美沙拉秦治疗脾虚湿热型缓解期UC患者的疗效和安全性。方法于2020年6月至2021年3月,在广州中医药大学第一附属医院门诊纳入1例缓解期UC患者。采取自身对照的方式,共进行4轮次无洗脱期的随机对照试验,每一轮次包括试验期和对照期两个治疗期,每个治疗期干预1个月,共8个治疗期。受试者在试验期服用健脾清热化湿方颗粒与美沙拉秦,在对照期服用美沙拉秦。比较两个治疗期的中医证候评分（TCMSS）、Bristol粪便性状量表（BSFS）、腹痛和腹泻视觉模拟评分（VAS）、炎症性肠病简明健康量表（SHS）评分及安全性。结果4轮次试验后,试验期腹泻、腹胀、肢体倦怠评分及TCMSS总分的改善程度优于对照期（P<0.05）。4轮次试验后,试验期BSFS评分和腹泻VAS评分的改善程度优于对照期,腹痛VAS评分的改善程度劣于对照期（P<0.05）。4轮次试验后,试验期SHS评分的改善程度优于对照期（P<0.05）。患者在4个周期均无不良反应发生。结论健脾清热化湿方联合美沙拉秦可改善脾虚湿热型缓解期UC患者的临床症状,且安全性较高。     

粪菌移植干预治疗溃疡性结肠炎的免疫学机制研究

背景溃疡性结肠炎被世界卫生组织列为现代难治疾病之一。目前西医对其治疗尚存在诸多不足之处,研究显示粪菌移植（FMT）对其有一定的疗效,但机制尚不明确。目的采用FMT治疗小鼠溃疡性结肠炎模型,验证FMT的疗效和可能的作用机制。方法2019年12月至2020年4月,采用随机数字表法将60只小鼠分为正常对照组（Control组）、溃疡性结肠炎模型组（Model组）、溃疡性结肠炎模型+粪菌移植治疗组（Model+FMT组）和溃疡性结肠炎模型+5-氨基水杨酸（5-ASA）治疗组（Model+5-ASA组）,各15只。Control组不作任何干预处理;Model组制备小鼠溃疡性结肠炎模型;Model+FMT组于造模成功后,给予制备的粪菌液0.2 ml/次灌肠;Model+5-ASA组于造模成功后,给予0.019 5 g/ml 5-ASA灌肠。通过透射电镜观察肠组织超微结构变化,流式细胞检测血液辅助性T细胞（Th）-17、Th-1、Th-2、Treg细胞含量变化,酶联免疫吸附试验（ELISA）检测血清干扰素γ（IFN-γ）、白介素（IL）-2、IL-17、IL-4、IL-10、转化生长因子β（TGF-β）水平变化。结果肠组织透射电镜超微结构显示Model组造模成功;Model+FMT组与Model+5-ASA组微绒毛较为致密,形态正常,杯状细胞数目较多,线粒体轻微肿胀,粗面内质网病变不明显。Model+FMT组Th17细胞含量高于Control组、低于Model组,Model+5-ASA组Th17细胞含量低于Control组、Model组、Model+FMT组;Model+FMT组、Model+5-ASA组Th1细胞含量均分别低于Control组、Model组;Model+FMT组Th2细胞含量低于Control组、高于Model组,Model+5-ASA组Th2细胞含量低于Control组、高于Model组和Model+FMT组;Model+FMT组、Model+5-ASA组Treg细胞含量均分别低于Control组、高于Model组（P<0.05）。Model+5-ASA组IFN-γ细胞含量低于Model组;Model+FMT组、Model+5-ASA组IL-2细胞含量低于Model组;Model+FMT组、Model+5-ASA组IL-17细胞含量均分别低于Control组和Model组,Model+5-ASA组IL-17细胞含量低于Model+FMT组;Model+FMT组IL-4细胞含量低于Control组、高于Model组,Model+5-ASA组IL-4细胞含量高于Model组;Model+FMT组IL-10细胞含量高于Control组和Model组,Model+5-ASA组IL-10细胞含量高于Model组;Model+FMT组、Model+5-ASA组TGF-β细胞含量均分别低于Control组、高于Model组（P<0.05）。结论FMT可改善小鼠溃疡性结肠炎症状,推测其可能是通过调节Th1/Th2细胞平衡、Th17/Treg细胞比例达到治疗的目的。     

Rabdosia serra alleviates dextran sulfate sodium salt-induced colitis in mice through anti-inflammation,regulating Th17/Treg balance,maintaining intestinal barrier integrity,and modulating gut microbiota

Rabdosia serra (R. serra), an important component of Chinese herbal tea, has traditionally been used to treat hepatitis, jaundice, cholecystitis, and colitis. However, the chemical composition of R. serra and its effect against colitis remain unclear. In this study, the chemical composition of the water extract of R. serra was analyzed using ultra performance liquid chromatography coupled with a hybrid linear ion trap quadrupole-orbitrap mass spectrometer (UPLC-LTQ-Orbitrap-MS). A total of 46 compounds, comprising ent-kaurane diterpenoids, flavonoids, phenolic acids, and steroids, were identified in the water extract of R. serra, and the extract could significantly alleviate dextran sulfate sodium salt-induced colitis by improving colon length, upregulating anti-inflammatory factors, downregulating proinflammatory factors, and restoring the balance of T helper 17/T regulatory cells. R. serra also preserved intestinal barrier function by increasing the level of tight junction proteins (zonula occludens 1 and occludin) in mouse colonic tissue. In addition, R. serra modulated the gut microbiota composition by increasing bacterial richness and diversity, increasing the abundance of beneficial bacteria (Muribaculaceae, Bacteroides, Lactobacillus, and Prevotellaceae_UCG-001), and decreasing the abundance of pathogenic bacteria (Turicibacter, Eubacterium_fissicatena_group, and Eubacterium_xylanophilum_group). Gut microbiota depletion by antibiotics further confirmed that R. serra alleviated colitis in a microbiota-dependent manner. Overall, our findings provide chemical and biological evidence for the potential application of R. serra in the management of colitis.     

美沙拉秦灌肠液联合布拉氏酵母菌散治疗溃疡性结肠炎的疗效观察

目的：探讨美沙拉秦灌肠液联合布拉氏酵母菌散治疗溃疡性结肠炎的临床效果。方法选择本院2013年7月—2014年4月收治的轻、中度活动性溃疡性结肠炎患者80例,随机分为治疗组和对照组,各40例。治疗组给予美沙拉秦灌肠液联合布拉氏酵母菌散治疗,对照组仅给予美沙拉秦灌肠液治疗。观察两组患者的临床效果及不良反应。结果治疗后,治疗组总有效率为97.5%（39/40）,高于对照组的77.5%（31/40）,差异有统计学意义（P〈0.05）。两组患者的不良反应未通过特殊处理均自行缓解。结论美沙拉秦灌肠液联合布拉氏酵母菌散治疗溃疡性结肠炎疗效确切。     

美沙拉嗪与柳氮磺吡啶治疗溃疡性结肠炎的效果比较

目的：比较美沙拉嗪与柳氮磺吡啶治疗溃疡性结肠炎的效果。方法选取安达市医院2012年8月—2014年8月收治的76例溃疡性结肠炎患者,根据入院顺序分为治疗组与对照组,每组38例。治疗组采用美沙拉嗪治疗,对照组采用柳氮磺吡啶治疗,比较两组的临床效果及不良反应发生情况。结果治疗组的总有效率高于对照组,不良反应发生率低于对照组,差异有统计学意义（ P﹤0.05）。结论美沙拉嗪治疗溃疡性结肠炎的效果优于柳氮磺吡啶,且不良反应少。     

Long-term Prognosis of Localized Lymphoid Hyperplasia of the Rectum

Background/AimsAlthough localized lymphoid hyperplasia (LLH) of the rectum is occasionally observed, its clinical implications are unclear. This study aimed to investigate the clinical course and significance of LLH of the rectum.MethodsWe identified 65 patients diagnosed with LLH of the rectum using a histopathologic examination and who received follow-up endoscopies between January 2009 and June 2015. Patients with a history of inflammatory bowel disease, lymphoma, familial adenomatous polyposis, or uncontrolled malignancy and patients who underwent scar biopsy after endoscopic resection or surgery were excluded. Endoscopic findings and clinical courses were analyzed.ResultsDuring the median follow-up of 31 months (interquartile range, 19 to 40 months), 81.5% (53/65) of LLHs of the rectum were resolved. Clinically significant diseases, including ulcerative colitis (UC, n=5) and mucosa-associated lymphoid tissue (MALT) lymphoma (n=1), were diagnosed in 9.2% of patients (6/65). The other six patients showed no significant changes in the lesion (n=3) or a waxing and waning appearance (n=3). According to endoscopic findings, all of the 47 polypoid types showed resolution or waxing and waning patterns. Five of the 11 nodular types (45.5%) developed into UC. One of the seven submucosal tumor (SMT)-like types (14.3%) developed into MALT lymphoma.ConclusionsLLH of the rectum with persistent symptoms or the endoscopic appearance of the nodular or SMT-like type may lead to clinically significant disease. Risk stratification according to endoscopic findings and careful surveillance are required for these lesions.     

白细胞吸附疗法在重症炎症性肠病中的应用进展

炎症性肠病(IBD)是一种以反复发作的、多种免疫因子参与的慢性肠道炎症,其发病率在逐年增加。其发病机制可能与机体免疫反应、肠道炎性活动、肠道功能紊乱、精神状态、遗传等因素有关。目前主要的治疗方式以营养疗法、药物治疗、单克隆抗体相关的生物治疗、免疫抑制剂疗法为主,因发病机制仍不十分明确,这些疗法都不能完全有效地控制炎症的发展。近年来研究发现,血液中的白细胞(中性白细胞和单核细胞)的激活在IBD的发生与发展中起着至关重要的作用,因此,有效地清除血液中激活的白细胞,中断炎症反应链,可以达到控制疾病进展的目的。许多研究者将白细胞免疫吸附疗法应用于对重症炎症性肠病(SIBD)病人的治疗,并取得了一定的效果。这是对目前IBD治疗的补充,也是一种研究思路,但其吸附效果、疗效、不良反应等还有待进一步研究。     

Enfermedades inflamatorias mediadas por inmunidad en pacientes con enfermedad inflamatoria intestinal. Datos basales del estudio Aquiles

Objective

To determine the prevalence of immune-mediated inflammatory diseases (IMID) in a cohort of patients with inflammatory bowel disease (IBD) enrolled in hospital gastroenterology outpatients units for the AQUILES study, a prospective 2-year follow-up study.

Material and methods

We included patients ≥ 18 years old with a prior or new diagnosis of IBD (Crohn disease [CD], ulcerative colitis [UC] or indeterminate colitis). Diagnoses were collected in a cross-sectional manner from the clinical records at enrollment of a new patient in the study.

Results

We included 526 patients (mean age 40.2 years; 47.3% men, 52.7% women), 300 with CD (57.0%), 218 with UC (41.4%) and 8 with indeterminate colitis. Other types of IMID were present in 71 patients (prevalence: 13.5%, 95% CI: 10.8-16.7): 47 were spondyloarthropathies (prevalence: 8.9%); 18 psoriasis (3.4%); 5 pyoderma gangrenosum (1.0%), and 11 uveitis (2.1%). The prevalence of IMID was higher in patients with CD than in those with UC (17.0% [95% CI: 13.2-21.7] vs 9.2% [95% CI: 6.0-13.8], p = 0.011). In the multivariate analysis, the variables associated with the presence of IMID were diagnosis of CD (OR = 1.8 [95% CI: 1.1-3.2]) and duration of IBD ≥ 4 years (OR = 2.1 [95% CI: 1.1-4.1] in those with disease duration 4-8 years, and OR = 2.1 [95% CI: 1.2-3.9] in those with ≥ 8 years vs. < 4 years).

Conclusions

In the cohort of patients with IBD in the AQUILES study, 13.5% had another IMID, with a higher prevalence in patients with CD and > 4 years since disease onset.     

Mortality from Ulcerative Colitis in Denmark 1960–1969

The mortality from ulcerative colitis in Denmark, calculated on the basis of the mortality statistics, was 0.5/100,000/year for the period 1960–69. The total material consists of 110 females and 108 males with ulcerative colitis. The mortality showed a decreasing tendency during the study period, but the fall was not significant. The distribution of the deaths between rural and urban areas corresponded to the distribution of the general population. 93 % of the deaths took place in hospital, the greater part in surgical departments.