1.Key points in splenectomy for massive splenomegaly
Chinese Journal of Digestive Surgery 2009;8(1):75-77
The spleen whose size reaches or exceeds third degree should be regarded as massive splenomegaly.Splenectomy for massive splenomegaly demands precise procedures.First,median incision on upper abdomen(or vertical rectus muscle splitting incision)and incision under left costal arch are preferred.Second,the spleen was freed and then 0.33 mg of epinephrine was injected via the splenic artery before splenic artery ligation.During the process,a cell saver helps to minimize blood loss and makes autoinfusion possible for patients with benign lesions.Third,preoperative administration of fibrinogen,platelet and essential styptieum combined with the cooperation between surgeons and anesthesi010gists are the key points of bloodless surgery which is important for the recovery of patients.Four common problems of splenectomy for massive splenomegaly should also be addressed,including operation discontinuance,perioperative hemorrhage,accessory injury and postoperative intractable fever.
2.Effect of intraventricular injection of histamine on corticotropin releasing hormone neurons in paraventricular nucleus of hypothalamus
Jing ZHANG ; Guoquan GAO ; Zhuli WANG ; Chaoyang LI ; Guangq LU
Chinese Journal of Pathophysiology 1989;0(06):-
AIM:To study the effect of intraventricular injection(icv) of histamine(HA) on corticotropin releasing hormone (CRH) neurons activity in paraventricular nucleus (PVN) of hypothalamus. METHOD: Fos ontogenic protein immunohistochemistry and double antigen immunohistochemistry method; semiquantitative reverse transcription-polymerase chain reaction(RT-PCR) method were used. RESULTS: After intraventricular injection of HA, (1) number of Fos immunnoreactive positive neurons in PVN increased significantly; (2) double labeling experiments showed that there were 31 78%?1 59% of Fos immunoreactive cells in PVN expressed CRH simultaneously; (3) the CRHmRNA level in PVN was increased in a dose-dependent manner. CONCLUSION: Central histamine activated CRH neurons in PVN of hypothalamus and increase the expression of CRH gene.
3.Identification of genus Zanthoxlum by Fourier transform infrared spectrometry
Peiying LIN ; Chaoyang TAO ; Bin ZHU ; Feng LU ;
Academic Journal of Second Military Medical University 2001;0(09):-
Attenuation reflectance Fourier transformation infrared spectrometry(ATR FTIRs) combined with clustering analysis was used to identify genus Zanthoxlum .The dendrogram of clustering analysis showed that there were obvious difference between genus different species of Zanthoxlum . The results are consistent with that of morphologic study and analyzing.This method is rapid, simple, effective and can be used for the identification of crude drugs.
4.Factors affecting survival of patients after curative resection of carcinoma of pancreatic head: an analysis of 58 cases
Bei SUN ; Chaoyang LU ; Linfeng WU ; Fie LIU ; Qinghui MENG ; Hongtao TAN ; Hongchi JIANG
Chinese Journal of Pancreatology 2008;08(6):379-381
Objective To analyze the clinical factors predicting long-term survival after curative resection of pancreatic head carcinoma. Methods The clinical data of 58 patients with ductal adenocarcinoma of pancreatic head who underwent curative resection of carcinoma of pancreatic head from 1996 to 2004 were collected and were analyzed by SPSS 10.0 with Cox Proportional Hazards Model. Results 58 patients, including 30 male and 28 female patients, were involved in this study. Pancreaticoduodenectomy were performed in 14 cases and extended resections were performed in 44 cases. The overall 1, 3, 5 year survival rates was 46.6%, 29.3% and 8.6%, respeclively. The 1,3, 5 year survival rates of pancreatoduodenectomy with extended regional lymphadenectomy was 43.1%, 22.7% and 6.8%, respectively. UICC staging, peri-pancreatic nerve invasion and blood infusion had significant effects on the prognosis after curative resection. Conclusions The long-term prognosis after curative resection of pancreatoduodenectomy was still dismal. Much importance should be paid to early diagnosis and comprehensive management for pancreatic head cancer.
5.Effects of moxibustion with seed-sized moxa cone at "Ganshu" (BL 18) on liver function in rats with precancerous lesion of hepatic cellular cancer.
Yang LIU ; Zhongwei HOU ; Jun LU ; Feng DONG ; Pei WANG ; Wenrui JIA ; Chaoyang WANG
Chinese Acupuncture & Moxibustion 2015;35(7):702-706
OBJECTIVETo explore the effects of moxibustion with seed-sized moxa cone at "Ganshu" (BL 18) on liver furiction and morphology in rat with precancerous lesion of hepatic cellular cancer MCC).
METHODSA total of 60 male Wistar rats were randomly divided into a normal group (10 rats), a model group (20 rats), a 20-day treatment group (15 rats) and a 40-day treatment group (15 rats). HCC model was established by intraperitoneal injection of diethylnitrosamine (DEN). Rats in the normal group received no treatment. Rats in the model group were treated with fixation. Rats in the 20-day treatment group and 40-day treatment group were treated by moxibustion with seed-sized moxa cone at "Ganshu" (BL 18), once every other day, for 20 days and 40 days, respectively. Blood sample in each group was collected 1 d before model establishment, 20 d, 40 d and 84 d after model establishment. Chemical method was applied to test the activity of ALT (alamine aminotransferase), AST (aspartate transaminase) and GGT (glutamyl transpeptidase); at the end of model establishment, all the rats were sacrificed to observe the liver morphology changes.
RESULTSAfter the first therapeutic course, the. content of ALT and AST in the 20-day treatment group was significantly lower than that in the model group (all P<0. 05); after the second therapeutic course, the content of ALT, AST and GGT in the 40-day treatment group was insignificantly lower than that in the model group (all P>0. 05). Under light microscope, the slice of liver tissue indicated that primary tumor was induced in the model group, and the tumor cells were stained and irregular; the cytoplasm in the 20-day treatment group was even, and the tumor cells were few with several nodules alone. In the 40-day treatment group the liver morphology was normal and the staining was even; the tumor cells were few without nodules or a few. Conclusion Moxibustion with seed-sized moxa cone at "Ganshu" (BL 18) could reduce the serum content of ALT, AST and GGT in rats with HCC, which could protect the liver and: delay the DEN-induced precancerous lesion on some levels.
Acupuncture Points ; Animals ; Aspartate Aminotransferases ; blood ; Humans ; Liver ; pathology ; Liver Neoplasms ; enzymology ; pathology ; therapy ; Male ; Moxibustion ; Rats ; Rats, Wistar ; gamma-Glutamyltransferase ; blood
6.miR-125b confers resistance of ovarian cancer cells to cisplatin by targeting pro-apoptotic Bcl-2 antagonist killer 1.
Fanfei, KONG ; Chaoyang, SUN ; Zhongxian, WANG ; Lingfei, HAN ; Danhui, WENG ; Yunping, LU ; Gang, CHEN
Journal of Huazhong University of Science and Technology (Medical Sciences) 2011;31(4):543-9
Chemotherapy is the preferred therapeutic approach for advanced ovarian cancer, but a successful long-term treatment is prevented by the development of drug resistance. Recent works have underlined the involvement of non-coding RNAs, microRNAs (miRNAs) in cancer development, with several conjectures regarding their possible involvement in the evolution of drug resistance. This study is to investigate the promoting effects and mechanism of miR-125b involved in the development of chemoresistance in ovarian cancer. The different expression of miR-125b in cisplatin-sensitive ovarian cancer cell line (OV2008) and its resistant variant (C13*) was identified by real-time PCR. An in vitro cytotoxicity assay and apoptosis assay using CCK-8 assay and flow cytometry, were carried out to detect the effect of miR-125b and Bak1 on cisplatin resistance of cells. Real-time PCR, Western blotting and luciferase reporter assay were used to detect whether Bak1 is a target of miR-125b. As compared with OV2008 cells, the expression levels of miR-125b in C13* cells were increased. It was found that the up-regulation of microRNA-125b caused a marked inhibition of cisplatin-induced cytotoxicity and apoptosis and a subsequent increase in the resistance to cisplatin in OV2008 and C13* cells. Moreover, Bak1 was a direct target of miR-125b, and down-regulation of Bak1 suppressed cisplatin-induced apoptosis and led to an increased resistance to cisplatin. Our study indicates that miR-125b has a significantly promoting effect on chemoresistance of C13* cells and up-regulation of miR-125b expression contributes to cisplatin resistance through suppression of Bak1 expression. This finding has important implications in the development of targeted therapeutics for overcoming cisplatin resistance in ovarian cancer.
7.Analysis of frequency of HLA-B*5801 in population of Chinese Minnan region
Xun LI ; Yinghao HE ; Chaoyang HUANG ; Jiaqin ZHANG ; Xiaohui LU ; Bin HU ; Xiuyu SONG
Chinese Journal of Immunology 2015;(5):663-666
Objective: To investigate the gene frequency of HLA-B* 5801 in the population of Chinese Minnan region.Methods:In this study,we enrolled 178 patients requiring allopurinol therapy( including 40 patients with gout,89 patients with hyperuricemia and 49 patients with gouty arthritis) and 100 healthy people.We isolated genomic DNA from their blood and screened for HLA-B*5801 with both PCR and gene sequencing.Results:We found 22%patients and 16%healthy people with HLA-B*5801.The frequencies of HLA-B*5801 in patients and healthy people are 0.13 and 0.09,respectively.The results from PCR and gene sequencing were consistent.Conclusion:The frequency of HLA-B*5801 in the population of Chinese Minnan region is relatively high.Therefore,it is necessary to screen for HLA-B*5801 in allopurinol users before taking the medicine.
8.Recovery of Motor Function and Changes of Anterior Horn Cells after Spinal Cord Injury in Rats
Xichao OU ; Chaoyang YANG ; Yujun LIU ; Qiang LU ; Kaifeng ZHANG ; Xiaoguang LI
Chinese Journal of Rehabilitation Theory and Practice 2008;14(3):231-233
Objective To explore the restoration of motor function and the expression of calcitonin gene-related peptide(CGRP)and acetylcholine esterase(AChE)in the anterior horn motoneurons after different types of spinal cord injury.Methods 60 adult female Wistar rats were randomly assigned to 3 groups:sham group,completely transection group and contusion group.Average combined scores(ACOS)were applied to assess the motor function at various time after the surgery.The content of AChE in the anterior horn of L2-L4 was detected with Karnovsky-Roots staining and the expression of CGRP was then determined with immunohistochemistry.Results The scores of ACOS were much higher in the contusion group than in the transection group at each time point examined.The content of both AChE and CGRP significantly decreased after either type of spinal cord injury.However,their activity gradually recovered to the normal level in the contusion group,but not in the transection group.Moreover,the changes of CGRP occurred earlier than those of AChE.Conclusion There is strong relationship between the motor function recovery and the functional state of anterior horn cells.CGRP or AChE may play an important role in the functional recovery of locomotion after spinal cord injury in rats.
9.Morphologic features suggestive of submucosal invasive adenocarcinoma in colorectal mucosal biopsy specimens.
Ping WEI ; Mulan JIN ; Lei JIANG ; Ying WANG ; Xiumei HU ; Jun LU ; Xiaoli DIAO ; Yungang ZHANG
Chinese Journal of Pathology 2014;43(11):753-756
OBJECTIVETo observe and summarize the morphologic features that may suggest submucosal invasive adenocarcinoma in colorectal mucosa biopsy specimens.
METHODSThe study cohort included 432 colorectal biopsy specimens were obtained from 2006 to 2012. All the cases had radical surgery. Basing on the pathologic diagnoses, the cases were divided into 366 invasive adenocarcinoma (IAC) and 66 high-grade intraepithelial neoplasms (HGIN). These two groups were compared.
RESULTSIn the IAC group, the percentage of tumor forming cribriform structures, acute angle-shaped glands, diffuse carcinoma cell proliferation was 61.2% (224/366) , 33.8% (124/366) and 7.4% (27/366) , respectively. In the HGIN group, cribriform gland structures appeared in 6.0% (4/66) of the cases, while no acute angle-shaped gland or diffuse carcinoma cell proliferation was detected. The difference of these three characteristics in the two group was statistically significant (all P < 0.01). Glandular branching was detected in 89.9% (329/366) of IAC cases and 66.7% (44/66) of HGIN cases; this difference was not significant. There was no difference in cellular atypia between the two groups. Interstitial fibrosis was detected more frequently in the IAC group (85.5%, 313/366 in IAC versus 0 in HGIN, P < 0.01). In biopsy specimens of IAC, a few cases showed neoplastic glands in close contact with large lymphatics, adipose tissue, and ganglion.
CONCLUSIONSIn colorectal biopsy specimen, the five features that suggest submucosal invasion of the neoplastic glands including the formation of cribriform structure, angular gland, diffuse carcinoma cells, interstitial fibrosis and neoplastic glands in close contact with the thick-walled vessels.
Adenocarcinoma ; pathology ; Biopsy ; Carcinoma in Situ ; pathology ; Cell Proliferation ; Diagnosis, Differential ; Humans ; Intestinal Mucosa ; pathology ; Neoplasm Invasiveness