Acute pancreatitis is a prevalent acute abdominal syndrome in clinical practice, characterized by a complex and variable course, numerous complications, high treatment challenges, and significant variability in prognosis. Imaging computed tomography (CT) plays an indispensable role in the diagnosis, classification, and severity assessment of acute pancreatitis. To ensure precise communication of the condition across departments and mutual recognition of imaging examination results among different medical institutions, there is an urgent need to establish standardized imaging reports for acute pancreatitis. We present the CT structured reporting for acute pancreatitis utilized at West China Hospital of Sichuan University, with the aim of promoting the standardization of CT report writing for acute pancreatitis.
Objective To study the effects of anxious condition on asthma symptom burden and asthma control in elderly asthma patients in primary care settings. Methods Totally 128 elderly asthma patients were recruited in this study. The patients were required to fill in the questionnaire，then the score of asthma control test （ACT） and Hamilton anxious meter（HAMA） were calculated. Risk factors of anxious condition were analyzed by logistic analysis. Results The ACT scores in the anxious patients were significantly lower than those of the non-anxious patients [17.45±3.14 vs. 21.45±2.37，Plt;0.05）. The patients with lower incoming and more complications had more severe anxious condition，lower asthma control level，and more asthmatic medications. Meanwhile the latter conditions also increased the incidence of anxiety in the elderly asthma patients significantly （Plt;0.05）. Conclusions The elderly asthma patients in primary care settings are also complicated with anxiety，and the anxious condition can significantly increase asthma symptom burden and decrease asthma control level.
ObjectiveTo investigate the expression and clinical significance of HOXB7 mRNA and protein in colorectal cancer (CRC) tissues.MethodsThe expressions of HOXB7 mRNA were evaluated in 6 cases of adjacent colorectal mucosal (ACRM) tissues and 6 cases of CRC tissues by using RT-PCR. The HOXB7 protein expressions were evaluated in 30 cases of ACRM tissues and 98 cases of CRC tissues by using immunohistochemistry. The correlations between the expression of HOXB7 protein, and the clinicopathologic factors or the patient’ survival were analyzed.ResultsRT-PCR results showed that expression level of HOXB7 mRNA in CRC tissues was significantly higher than that of ACRM tissues (P=0.003). Immunohistochemistry results showed that significantly higher positive-expression rate of HOXB7 protein in CRC tissues compared with ACRM tissues (P<0.05). Positive expression of HOXB7 protein was associated with depth of tumor invasion, lymph node metastasis, and the TNM stage (P<0.05). Kaplan-Meier survival curves showed that positive expression of HOXB7 protein was not inversely correlated with survival of CRC patients (P=0.865).ConclusionPositive expression of HOXB7 protein is a novel biomarker for estimating the progression of CRC, but remains of textual research may be to confirm the significance of HOXB7 protein for prognosis evaluation.
Objective
To describe cultured human retinal pigment epithelial (RPE) cells transdifferentiation and investigate the effects of human vitreous fluid on the morphologic and cytoskeleton changes of RPE cells in vitro.
Methods
Cytoskeleton characteristics in the 2nd, 5th, 8th passage of RPE cells in normal culture, which included cytokeratin 18 (CK18) and α-smooth muscle actin (α-SMA) were analyzed by Western blot. RPE cells were cultured in human vitreous-conditioned medium (VCM) at the concentration of 1∶4 for 6 days, morphologic changes were examined by light and electron microscopy, and cytoskeleton characteristics were analyzed by imunocytochemistry and Western blot.
Results
During culture in vitro, RPE cells lost epithelial characteristics and aquired fibroblast-like phenotype. The expression of CK18 was the highest at the 5th passage, and it decreased in the following passage, but α-SMA increased gradually. The morphologic transdifferentiation from epithelial to fibroblast-like cells of RPE was accelerated by VCM. Ultrastructural changes such as decreased microvilli and gradually increased rough endoplasmic reticulum and Golgi complex were found during the cultivation. CK18 produced by RPE cells decreased in VMC (P＜0.05), and α-SMA increased (P＜0.01).
Conclusion
Morphologic changes in epithelialmesenchymal transdifferenetiation of RPE cells are stimulated by VCM and accomplied by the shift of cytoskeleton proteins, The results imply that cells migration may be decreased and contraction may be enhanced in VCM. It may suggest that vitreous accelerates the pathogenesis of PVR and RPE cells play an important role.
(Chin J Ocul Fundus Dis, 2002, 18: 289-292)
【摘要】 目的 探討低場磁共振彌散加權成像（DWI）診斷急性腦梗死的價值。 方法 2007年7月-2009年9月對48例腦梗死患者行常規MRI掃描和DWI，分析不同時期腦梗死的DWI表現。 結果 在發病的超急性期及急性期，DWI病灶顯示率均為100.0%，T2WI病灶顯示率分別為37.5%、73.7%、100.0%。 結論 低場DWI對急性腦梗死的診斷準確率高，明顯優于常規MRI。【Abstract】 Objective To investigate the diagnostic value of diffusion weighted imaging (DWI) in acute cerebral infarction. Methods From July 2007 to September 2009, 48 patients with ischemic stroke underwent conventional MRI and DWI, and the characteristics of DWI were analyzed. Results Abnormal DWI signals were displayed in all patients at hyperacute stage or acute stage, abnormal T2WI signals existed in 37.5%, 73.7%, and 100.0%, respectively. Conclusion DWI in low field MR is highly accurate in diagnosing acute cerebral infarction, which is superior to conventional MRI.
【摘要】 目的 研究降鈣素基因相關肽（calcitonin gene related peptide， CRGP）在肝硬化門靜脈高壓癥患者食管下段胃底靜脈曲張中的作用。 方法 以2005年1月－2010年8月46例肝硬化門靜脈高壓癥不同程度食管下段胃底靜脈曲張患者作為研究對象，并按食管下段胃底靜脈曲張嚴重程度分為輕度曲張組、中度曲張組、重度曲張組，以30例行胃腸疾病手術無肝病患者作為對照。術中水柱法測定門靜脈壓力；酶聯免疫吸附法測定門靜脈血中CGRP含量。 結果 對照組及輕、中、重度曲張組門靜脈壓力分別為（14.8±2.1）、（30.5±2.5）、（44.3±3.2）、（47.6±3.8） cm H2O（1 cm H2O=0.098 kPa）。門靜脈血中CGRP的含量分別為（45.4±5.4）、（69.2±7.2）、（93.6±8.7）、（98.2±9.4） pg/mL。對照組門靜脈壓力及CGRP含量明顯低于其他3組（Plt;0.05），在輕度曲張組明顯低于中度和重度曲張組（Plt;0.05），中度和重度曲張組之間差異無統計學意義（Pgt;0.05）。 結論 CRGP在肝硬化門靜脈高壓癥食管下段胃底靜脈曲張的發生和發展中起重要作用，CGRP可作為反映食管靜脈曲張程度的一種有用指標。【Abstract】 Objective To investigate the role of calcitonin gene related peptide (CRGP) in pathogenesis of esophageal varices in portal hypertension with cirrhosis. Methods from January 2005 to August 2010, 46 patients with portal hypertension and cirrhosis at different degrees of esophageal varices were divided into mild varicose group, moderate varicose group and severe varicose group according to the severity of esophageal varices. The patients who underwent gastrointestinal surgery without liver disease were as the control. Portal vein pressure was detected by mercury during the surgery. The expression of CGRP was assayed by enzyme-linked immunosorbent assay. Results The portal pressure was (14.8±2.1), (30.5±2.5), (44.3±3.2), and (47.6±3.8) cm H2O (1 cm H2O=0.098 kPa) in the control group and the mild, moderate and severe varicose group, respectively. Those CGRP content in the portal vein was (45.4±5.4), (69.2±7.2), (93.6±8.7), and (98.2±9.4) pg/mL, respectively. CGRP content and portal vein pressure were the lowest in control group, which were significantly lower than those in the other three groups (Plt;0.05); which were also significantly lower in mild varicose group than those in the moderate and severe esophageal varices group (Plt;0.05), while no statistic difference between moderate and severe esophageal varices group was found (Plt;0.05). Conclusion CGRP plays an important role in the occurrence and development of portal hypertension with cirrhosis concurrent esophageal varices, and it may serve as a useful indicator reflecting the degree of esophageal varices.
Purpose
To investigate the effects of human vitreous fluid on proliferation of cultured human retinal pigment epithelial (RPE) cells and vascular endothelial cell lines(VEC304).
Methods
Human RPE cells and VEC304 were cultured and treated in different human vitreous-conditioned medium (VCM) with or without serum, vitreous volume concentrations of VCM were 1∶8, 1∶4 and 1∶2. Cells proliferation was assayed by tetrazolium (MTT) colorimetry at the 2nd, 4th and 6th day respectively.
Results
In the presence of serum, 1∶4, 1∶2 VCM had a significantly stimulative effect on RPE cells proliferation compared with control group at the 2nd, 4th, and 6th day retrospectively (P＜0.01), but exerted a bly inhibitory effect on VEC304 proliferation compared with control group at the 2nd, 4th, and 6th day retrospectively (Plt;0.05). In the absence of serum, only 1∶2 VCM had a stimulative effect on RPE cells growth compared with control group at the 2nd day (P＜0.05) and obviously at the 4th and 6th day respectively (P＜0.01).
Conclusion
Human vitreous fluid influences human RPE cells and VEC304 growth in vitro. This result suggests that vitreous may play different role in proliferative vitreoretinopathy and intraocular neovascular disease.
(Chin J Ocul Fundus Dis, 2002, 18: 140-142)
Inflammatory bowel disease (IBD) is a group of chronic, recurrent, and non-specific intestinal inflammatory diseases. It usually occurs between 20 and 40 years old, overlapping with the patient’s childbearing age. Active IBD may lead to decreased fertility and adverse pregnancy outcomes, and pregnancy may also lead to recurrence of IBD. Through studying domestic and foreign related literature on pregnancy and IBD, this article elaborates on the guidance and management of IBD before pregnancy, the disease management of IBD during pregnancy, the disease management of IBD during lactation, and the current status and prospects of traditional Chinese medicine treatment. It aims to provide references for patients and clinicians to have a more scientific understanding of pregnancy with IBD.
Esophageal cancer is the seventh most common cancer worldwide. On August 29, 2023, National Comprehensive Cancer Network (NCCN) released the NCCN esophageal and esophagogastric junction cancers clinical practice guidelines in oncology (version 3. 2023). This article aims to highlight the key updates in treatment and follow-up recommendations between the version 3 and the version 2 in 2023, providing the latest guidance for the management of esophageal cancer in our country.
Objective To evaluate the role of apparent diffusion coefficients (ADC) in assesment of response to chemotherapy in patients with gastrointestinal liver metastasis. MethodsTen patients with liver metastasis （8 from colorectal cancer， 1 from gastric cancer， 1 from esophageal cancer） at Peking University People’s Hospital from April 2006 to April 2007 were included. All of them received chemotherapy （FOLFOX6： 4 cases， XELOX： 3 cases, and FOLFIRI： 1 case in 8 cases of colorectal liver metastases; ECF: 1 case of gastric liver metastases; DCF: 1 case of esophageal liver metastasis）. ADC were calculated after MR duffusionweight imaging exmination (GE MEDICAL SYSTEMS HD EXCITE 1.5 T) 1 month pre-and post-chemotherapy, respectively. Tumour response to chemotherapy was assessed by RECIST criteria. ResultsTumors with low pretreatment ADC (lt;9.04×10－4 mm2/s) responded better to chemotherapy than that with high ADC (gt;9.04×10－4 mm2/s); pretreatment ADC of cases (6/10) were remarkable lower than those of cases (4/10)， P＝0.033. Increased ADC after onemonth chemotherapy in patients with liver metastasis predicted a better response. ConclusionsLow pretreatment ADC is predictive of better response to chemotherapy. An increased ADC after treatment predicts a better response to chemotherapy.
