ObjectiveTo summarize the recent progress in studies of intestinal immunity in inflammatory bowel disease (IBD). MethodsThe literatures on studying the intestinal immunity in IBD, including ulcerative colitis and Crohn disease were reviewed and analyzed. ResultsIBD comprised two main diseases that cause inflammation of the intestines: ulcerative colitis and Crohn disease. Although the diseases had some features in common, there were some important differences in clinical symptoms and pathological features. Accumulating evidence suggested that IBD results from an inappropriate inflammatory response to intestinal microbes in a genetically susceptible host. Immunity studies highlighted the importance of host-microbe interactions in the pathogenesis of these diseases. Prominent among these findings were genomic regions containing nucleotide oligomerization domain 2 (NOD2), autophagy genes, miRNAs, and components of the interleukin-23/type 17 helper T-cell (Th17) pathway. The disfunction of the intestinal microbiome, intestinal epithelium, intestinal immune cells, and the intestinal vasculature played a key role in the process of IBD. The treatment with monoclonal antibody had been introduced to treat IBD and had been certificated effective. ConclusionThe study of basic intestinal immunity and regulation network of molecules in pathogenic process of IBD provides theory basis on prevention of IBD, while related genes of IBD can offer more gene therapy targets.
Objective To explore the clinical characteristics of Crohn’s disease (CD) with perianal fistula by analyzing the clinical data of them. Methods A total of 139 cases of CD with perianal fistula who got treatment from January 2010 to January 2017 in The Affiliated Hospital of Nanjing University of Traditional Chinese Medicine were analyzed retrospectively. Results The proportion of males and females in 139 patients was about 3.3∶1.0, the age was (28±8) years, and 47.5% of patients had perianal fistula before CD diagnosis. The percents of patients with perianal surgery history and medication history were 64.7% and 74.1%, respectively. The ratio of L3 type (diseased position) was 49.6%. The ratios of inflammatory type (B1 type) and stenotic type (B2 type) of the disease were 51.8% and 41.0%, respectively. The complex perianal fistula accounted for 90.6%, and 31.7% of patients combined analrectal stricture. Symptoms of diarrhea were found in 46.0% of patients and perianal lesions alone in 29.5% of patients; 54.0% of patients combined with abnormal BMI; 64.7% of patients were in the active stage of Crohn’s disease activity index (CDAI) and 94.2 % of patients were in the active period of perianal disease activity index (PDAI). The patients with erythrocyte sedimentation rate (ESR) higher than normal were 53.2%. The results of logistic showed that, age and degree of CDAI were influencing factors for CD with stenosis of perianal fistula. Conclusions Characteristics of patients with CD combined with perianal fistula include: young, men predominant, high prevalence of ileocolic position involvement, as well as inflammation and stenosis disease behavior. Fistula symptoms often preced the intestinal symptoms and diarrhea is the most common intestinal performance. History of perianal abscess and fistula operation are common. The anorectal stricture are complicated usually. Intestinal inflammation is active. Some patients show abnormal laboratory indicators of inflammation. This suggests that patients with perianal fistula with these clinical features should be alert to the possibility of CD, so as toavoid the consequences of blind surgery. The higher CDAI score and the older the diagnosis age, the higher the risk ofrectal stenosis.
ObjectiveTo compare Crohn disease(CD) with intestinal tuberculosis(ITB) in clinical and multislice CT(MSCT) features that may be helpful for the differential diagnosis. MethodsThirty-eight patients with CD and 13 with ITB proved surgically and pathologically were recruited for this study. The clinical symptoms, laboratory, and MSCT findings in these patients were retrospectively analyzed. ResultsThe MSCT changes helpful in distinguishing CD from ITB included:①CD presented symmetrical intestinal wall thickening in most cases, while ITB were asymmetric (P < 0.05).②The irregular stricture was more common usually shown in CD groups, while coaxial in ITB(P < 0.05).③The lymphadenopathy with obvious enhancement and tortuously mesenteric vessels were frequently found in ITB group (P < 0.05). The clinical features of CD including abdominal pain, diarrhea, fever, anemia, hematochezia, weight loss, and intestinal complications were similar with ITB, and similar results were detected in the laboratory examination including the acceleration of erythrocyte sedimentation rate, postive C-reactive protein, and the reduction of albumin. The feature of hematochezia was more common in CD than in ITB, while concomitant pulmonary tuberculosis was more revealed in ITB(P < 0.05). ConclusionsThe MSCT findings of CD and ITB are characteristic. Combined with the similar clinical and laboratory features, the features of MSCT maybe helpful for definitive diagnosis.
Therapeutic drug monitoring (TDM) has been more widely used in small molecule agents, such as immuno-suppressants, antiepileptic drugs and antibiotics, with less attention in the field of therapeutic biological agents. Monoclonal drugs represented by tumor necrosis factor alpha (TNF-α) inhibitors have shown a good relationship between exposure and efficacy in clinical studies. There are corresponding guidelines and consensus for the recommendations of TDM based on current research evidence. Therefore, this paper introduced the current evidence, strategies and considerations for TDM in the optimal treatment of adalimumab from the perspective of adalimumab TDM to provide references for the clinical practice of adalimumab TDM.
Crohn’s disease (CD) is one of inflammatory bowel diseases, characterized by lifelong relapsing-remitting clinical course. The choice of treatment protocols is based on the comprehensive evaluation of the disease. And the treatment protocols should be adjusted according to the response to the treatment and the drug tolerance. Repeated assessment of the activity of intestinal inflammation is very necessary. Each of endoscopy, Crohn’s Disease Activity Index, CT, magnetic resonance enterography, and ultrasonography (US) has its own disadvantages. US is widely used in clinical practice because of its no radiation, convenience, low cost, and high degree of patient tolerance. The two-dimensional ultrasound, Doppler ultrasound, elastosonography, and contrast-enhanced ultrasonography each provides some effective parameters for evaluation of CD activity. Some parameters are of high value, such as bowl wall thichness, bowl wall stratification, color Doppler signal, strain ratio, and relative enhancement, etc. The values of some parameters are disputed, such as the blood flow of superior mesenteric artery, time to peak, etc. Some studies combine several ultrasound parameters and calculate their respective weights to obtain an ultrasound scoring method. US, as a valid tool to evaluate CD activity, provides valuable help in solving clinical problems such as evaluation of therapeutic effect, mucosal healing, and postoperative recurrence.
目的 分析克罗恩病的临床特点、内镜表现、病理特点、误诊原因，为克罗恩病的诊治提供临床经验。 方法 回顾性分析河南省人民医院2004年1月－2011年12月38例克罗恩病临床特点，并对误诊情况及原因进行分析。 结果 38例小肠克罗恩病患者，症状主要表现为腹痛、腹泻及便血。病变多位于末端回肠和回盲部，最常见的并发症为肠梗阻。结肠镜下可见节段性黏膜充血水肿、铺路石样改变、多发不规则溃疡；病理示全壁性炎症、深裂隙状纵行溃疡及非干酪性肉芽肿。克罗恩病的诊断主要依靠内镜及病理。 结论 克罗恩病临床表现复杂多样，临床误诊、漏诊情况较为多见，需进一步提高对克罗恩病的认识。
ObjectiveTo investigate the current research status and its developing trend of Crohn’s disease (CD) in Chinese journals in the past 40 years, and to provide reference for future research on CD.MethodsWith “Crohn’s disease” as the retrieval word, the literature about CD published from January 1978 to December 2017 were retrieved in the SinoMed database. The distributions of publication dates, journals, research institutions, and regions of literature were analyzed by EndNote, Excel, MySQL, and GraphPad Prism softwares.ResultsA total of 2 140 papers matched the searching criteria, including 1 391 papers published in the core journals. The number of papers increased by year, especially in the past 20 years, the growth rate of the total number of papers every 5 years was 96.67%, 202.54%, 85.15%, and 29.35%, respectively. A total of 152 papers met the criteria of evidence-based documents, and the proportion of evidence-based articles in the total papers every 5 years was 2.54%, 3.92%, 4.69%, and 12.16%, respectively. In the respect of region distribution of literature, the first addresses of 1 060 papers were in East China, accounting for 50.36% of the total number of papers. Jiangsu Province, Guangdong Province, Shanghai, Zhejiang Province, and Beijing had published a total of 1 257 papers, accounting for 59.71% of the total number of papers. In our research field, most of the studies were conducted by teaching hospitals.ConclusionsIn the past 40 years, the output of research on CD increased significantly in China. The proportion of evidence-based articles has increased, while the number of evidence-based research still needs to be improved. The regional distribution of literature was unbalanced, and teaching hospitals played a vital role in the research field.
目的 探讨外科治疗克罗恩病的手术时机及手术方式。方法 回顾性分析了1998～2012年期间笔者所在医院收治的13例克罗恩病手术患者的临床资料。结果 13例患者中行急诊手术6例，择期手术7例；行左半结肠切除术2例，回盲部并小肠切除术4例，部分小肠切除术4例，右半结肠切除术2例，全结肠切除回肠造口术1例。本组仅7例获随访，随访时间12～48个月，平均38个月，有2例患者分别于术后16个月和31个月死亡，死亡原因为营养不良，消化道出血，多脏器功能衰竭；另外5例预后良好。结论 对克罗恩病正确把握手术时机及选择手术方式，围手术期结合激素及免疫抑制剂治疗是取得满意治疗效果的关键。