1.Idiopathic chronic colonic pseudo-obstruction
Shuhui YIN ; Ronggui MENG ; Chuangang FU ; Enda YU ; Long CUI ; Dehong YU
Chinese Journal of General Surgery 2001;0(10):-
Objective To investigate the diagnosis and treatment of idiopathic chronic colonic pseudo-obstruction(ICCPO). MethodsIn this study 69 patients admitted for “constipation” were finally found falling into one of the 4 groups: 11 cases of outlet obstructive constipation, 16 cases of slow transit constipation, 26 cases of mixed type, and 16 of ICCPO. ResultsThe main symptoms of these 16 ICCPO cases were intractable constipation, compared with that in other entities ICCPO tends to affect patients at younger age, with shorter clinical course, and often needs surgical intervention due to intractable bowel obstruction, usually total colectomy. ConclusionsICCPO, STC and mixed constipation are different clinical entities. The differentiation of ICCPO from other entities is sometimes very difficult especially when patients are suffering from acute onset of bowel obstruction.
2.Upper-gastrointestinal polyps found in cases of familial adenomatous polyposis
Xiaodong XU ; Chuangang FU ; Ning SONG ; Wei ZHANG ; Lianjie LIU ; Ronggui MENG ; Enda YU
Chinese Journal of General Surgery 2012;27(8):613-615
ObjectiveTo discuss the incidence,endoscopic manifestion and pathological features of the upper-gastrointestinal polyps ( stomach and deodenum) in FAP patients. MethodsDuring 2004 -2010 a total 57 FAP patients at Changhai Hospital underwent screening for polyps in upper-gastrointestinal tract by gastroscopy and sideward-viewing duodenoscopy. Biopsies were taken on the polypoid lesions.ResultsGastric polyps were found in 38 patients (67%).Most polyps were located at gastric body and antrum,the pathologic diagnosis was hyperplastic. Duodenal polyps were found in 12 patients (21%) including 7 cases of adenomatous polys. ConclusionsUpper- gastrointestinal polyps are the most common extra-colonic manifestion in FAP. Most stomach polyps are located at gastric body and antrum and are hyperplastic.Polyps at duodenum may be adenomatous,which is a precusor of carcinoma.
3.The diagnosis and treatment of early postoperative internal hernia
Hao WANG ; Yongqi SHAN ; Xiujun LIAO ; Ronggui MENG ; Chuangang FU ; Enda YU ; Wei ZHANG ; Lianjie HU
Chinese Journal of General Surgery 2008;23(5):350-352
Objective To investigate the clinical manifestations of early postoperative internal hernia. Methods Patients who were diagnosed with early postoperative small bowel obstruction(EPSBO)within 30 days after operation and underwent laparotomy between 1994 and 2006 were included for study.Clinical and radiological findings were analyzed. Results Totally 38 EPSBO patients were identined.among those,9 patients(23.7%)had an internal hera ag the cause of the howel obstruction.Other causes included intestinal adhesions in 27 patients(71.1%),gallstone ileus in 1 patient(2.6%)and stoma obstruction in 1 patient(2.6%).In the internal hernia group,6 cases were male and 3 cases were female witIl a mean age of 53.6 years.The mean time from the primary operation to symptom development was 7.8 d(range,2~17 d)and the mean time of conservative treatment Was 3.4 d(range,1~8 d).The main clinical features included:complete mechanical obstruction with symptoms rapidly progressing and early bowel strangulation.Specific radiologic abnormalities misht be identified,especially by contrast-enhanced CT.In this series,intestinal strangulation was found in 6 patients with bowel necrosis in 4 eases,necessitating howel resection in 5 patients.Wound infection developed in one cage and there was no perioperative death.Conclusion Internal hernia can occur early postoperatively and it bears a high risk of strangulation and bowel necrosis.Prompt operative intervention should be carried out in highly suspicious patients in order to avoid complications and achieve good outcome.
4.Large sessile colorectal polyps underwent endoscopic mucosal resection
Enda YU ; Ronggui MENG ; Honglian XU ; Miao LIN ; Chuangang FU ; Hao WAHG ; Hantao WAHG ; Liqiang HAO
Chinese Journal of Digestive Endoscopy 1996;0(05):-
1. 5 cm) sessile colorectal polyps referred for EMR. After submucosal injection of epinephrine, either en bloc or piecemeal snare polypectomy were performed. All resected specimens were retrieved for pathologic study. Follow-up colonoscopy was performed in all patients after EMR. Results All 157 polyps were removed completely. All lesions are larger than 1. 5cm, but 3 less than 1 cm on the submucosa of rectum. The largest one is 13 cm X 12 cm. No complication occurred. Histopathologic assessment of the resection specimens revealed the following: adenoma, 123; dysplasia, 80; mucosal carcinoma, 11; hyperplastic polyps, 20; rectal carcinoid, 3. Two patients who had rectal adenoma that was larger than 7cm recurrence happened at the resection site after 1 and 3 months follow-up respectively, than removed completely by hot biopsy forceps showed hyperplastic and villous adenoma on pathological study. No more residual tumor was detected for 6-12 months. Conclusion EMR with an intensive follow-up program is a safe and effective treatment for large sessile colorectal polyps and mucosal carcinoma.
5.Diagnosis and therapy of familial adenomatous polyposis with desmoid tumour
Enda YU ; Zheng LOU ; Xiaodong XU ; Ronggui MENG ; Hao WANG ; Guoxiang JIN ; Chuangang FU
Chinese Journal of General Surgery 1993;0(03):-
Objective To summarize the experience in diagnosis and therapy of familial adenomatous polyposis with desmoid tumour. Methods Clinical data of 6 patients with familial adenomatous polyposis and desmoid tumour from Jan 1989 to Jan 2005 were retrospectively analyzed. Results Five patients received proctocolectomy and 1 abdominoperineal resection. The most common symptom was progressive painless mass in abdomen. All patients were confirmed by image examination. Four received surgery, 2 were treated by medicine postoperatively and 1 got watchful therapy. Postoperative recurrence developed in two cases and one suffered from short bowel syndrome. All patients were alive at the follow-up. Conclusions FAP with desmoid tumour is not a rare condition and we should pay attention to diagnosis and manage this disease entity. A reasonable remedy was selected according to general state of health and location of desmoid tumour which can improve prognosis and quality of life.
6.Identification of the Polyreactivity of Monoclonal Natural Anti-ker atin Autoantibody 3B4 and Analysis of Its Molecular Mechanism
Hai-Hong GUAN ; Meng FU ; Ru-Shan XIA ; Gang WANG ; Yu-Feng LIU ;
Chinese Journal of Dermatology 1994;0(06):-
Objective To identify the polyreactivity of a monoclonal natural anti-keratin autoantibody 3B4 and to analyze its possible molecular me chanism.Methods enzyme-linked immunosorbent assay (ELISA)and immunohistoche mistry were applied to test the binding reactivity of 3B4 against different anti gens and tissues.The variable region genes and their amino acid composition wer e sequenced.Results 3B4 could reacted with a range of antigens and tissues,i n addition to keratin and skin.The variable region genes of its light chain and heavy chain showed high homology with germline genes VK1 am4 and VH1 J558.42.H CDR3 region,which mainly composed of short side chain amino acids(from 294 to 324 nucleotides around the heavy chain),was the only motif that differs from ot her highly homologous immunoglobulin genes.Conclusions The monoclonal natural anti-keratin autoantibody 3B4,with its variable region genes highly homologo us to germline genes,is highly polyreactive.The flexibility of HCDR3 may contr ibute to the polyreactivity.
7.Mutational analysis of NPHS1 gene in children with sporadic steroid-resistant nephrotic syndrome in Southern Chinese Han ethnic group
Daojing WANG ; Zihua YU ; Dachuan MENG ; Rong FU ; Jingjing WANG ; Dongning FENG ; Yonghui YANG
Chinese Journal of Nephrology 2012;28(2):95-100
Objective To elucidate the mutations of NPHS1 gene in children with sporadic steroid-resistant nephrotic syndrome (SRNS) in Southern Chinese Han ethnic group.Methods Peripheral blood samples were collected for genetic analysis from 40 patients with sporadic SRNS and 50 healthy volunteers as control.Genomic DNA was isolated from peripheral blood leucocytes.Twenty-nine exons and exon-intron boundaries of the NPHS1 gene were amplified by polymerase chain reaction.Mutational analysis was performed by DNA sequencing directly.Results Seven variants,928G>A(D310N),2677A>G (T893A),2869G>C (V957L),IVS8+30C>T,IVS21+14G>A,IVS25-23C>T and *142T>C,of NPHS1 gene were found in 6 of 40 children with sporadic SRNS,whereas they were not found in 50 healthy controls.2677A >G,IVS8 +30C >T,IVS21 +14G>A,IVS25-23C >T and *142T>C were novel.Moreover,thirteen already reported NPHS1 polymorphisms,294C>T,349G>A,IVS3+15C>T,IVS3+61A>G,803G>A,IVS8+68A>G,1339G >A,1802G >C,2223C >T,2289C >T,IVS24 +36C >T,3315G>A and IVS27 +45C >T,were detected in some patients and controls. Conclusions NPHS1 mutations in 6 of 40 children with sporadic SRNS in Southern Chinese Han ethnic group (15%) are detected.NPHS1 mutations are existed in Southern Chinese children,so it is necessary to perform the mutation analysis of NPHS1 gene in those children patients.
8.Immunologic mechanism of CXCL10 and its receptor involved in endometriosis
Ying FU ; Bo SHEN ; Sufei YU ; Qiaofei ZHENG ; Wei XU ; Xiaofan HE ; Zhefeng MENG
Chinese Journal of Pathophysiology 2009;25(11):2163-2167
AIM: To investigate the immunologic mechanism of CXC chemokine ligand 10(CXCL10) and its receptor CXC chemokine receptor 3 (CXCR3 ) involved in the process of endometriosis (EM). METHODS: Serum samples were collected from 3 groups; EM patients without operation (n = 76) , EM patients with operation (n = 10) and the normal control persons (n =76). CXCL10 and CA12S concentrations were detected by means of ELISA and chemilumino-metry. Cell surface antigens on the activated PBMC - CD3 and CXCR3, as well as CXCR3 subgene - CXCR3A and CX-CR3B were tested by flow cytometry (FC) and RT - PCR when PBMC was separated from women with EM ( n = 10) and without EM (n = 10), and then activated. RESULTS: Serum CXCL10 concentrations between three groups were signifi-canly different (P < 0.05). Compared to normal control group, although the supernatant CXCL10 concentration and CD3~+ /CXCR3~+ PBMC number in EM group has no significant difference (P >0.05) , highly expressed CXCR3B in EM group rather than CXCR3A was observed. CONCLUSION: CXCL10 in women with EM is low, indicating that it plays a vital role in the process of EM and immune system of the women with EM is defected and impaired. The immunoreactivity of PBMC from both EM patients and normal person is same to activated signal, but the productions are different: PBMC in EM group mainly express CXCR3B but PBMC in normal person mainly express CXCR3A after activation, which may be one of the immune mechanisms that EM escapes from immunological lethal effect of the infected host.
9.The effects of transfection of CXCL10 gene into breast cancer cell line MCF-7 on expression of tumor related genes
Bo SHEN ; Ying FU ; Wei XU ; Sufei YU ; Min ZHU ; Zhefeng MENG
Chinese Journal of Laboratory Medicine 2009;32(9):1059-1063
s were 0.573±0.016, 0.707±0.008 and 0.711±0.013). Conclusions CXCL10 can express stablely in MCF-7 cell lines, which resulted in down-regulation of expression of VEGF and STAT3 gene. CXCL10 played an important role in anti-tumor effect.