Carcinoma, Squamous Cell ; radiotherapy ; Head and Neck Neoplasms ; radiotherapy ; Humans

ObjectiveTo evaluate a second endoscopy for prevention of delayed bleeding after ESD.MethodsData of 67 patients with gastric epithelial neoplasms undergoing ESD from May to November 2011 were reviewed.The median age was 63 ( 31 ～ 84) years.All patients were followed up by endoscopy on the first and the third day after ESD.ResultsOf 67 lesions,5 were located at cardia,6 at gastric body,3 at fundus,35 at antrum,16 at gastric angle,and 2 at residual stomach.The mean maximum diameter of the lesions was 3.73±4 1.24 (2.0 ～ 7.0) cm.There were no intraoperative complications.Post-ESD delayed bleeding was detected by endoscopy in 6 (9.0％ ) patients,with 5 on the third day and 1 on the fourth day.Forrest grading showed 2 cases of Ⅰ b,and 4 of Ⅱ b.All 6 cases were cured by endoscopy.The incidence of postoperative bleeding was far more than that evaluated based on the patients' clinical manifestations only.But therapeutic effect and saffety were the same according to the follow-up results.ConclusionIncidence of post-ESD bleeding is high,but there are no symptoms or severe consequences,so a second endoscopy after gastric ESD may contribute little to the prevention of delayed bleeding.

Objective The role of long non-coding RNA Linc00467 in human lung adenocarcinoma is not yet clear.This study was to investigate the expression of long non-coding RNA Linc00467 in human lung adenocarcinoma, its clinical significance, and the effects of Linc00467 on the functions of the tumor and endothelial cells in vitro.Methods Lung adenocarcinoma tissue and normal tissue surrounding the malignance were obtained from 60 patients with pathologically proved stage I-Ⅲa lung adenocarcinoma.Human umbilical vein endothelial cells (HUVECs) were transfected with the over-expressed plasmid pccl-Linc00467 (HUVEC experimental group) or the empty vector pccl (HUVEC control group), A549 cells with Linc00467-siRNA (A549 experimental group) or negative siRNA (A549 control group), and H1299 cells, too, with Linc00467-siRNA (H1299 experimental group) or negative siRNA (H1299 control group).The expression level of Linc00467 in the lung adenocarcinoma tissue was detected by qRT-PCR with an analysis of its correlation with the clinicopathological characteristics of the patients;the influence of Linc00467 on the proliferation of the A549, H1299 and HUVEC cells was assayed with CCK-8;and the role of Linc00467 in the angiogenesis of the HUVECs was assessed by fibrin bead sprouting assay.Results The expression of Linc00467 in the lung adenocarcinoma tissue was 2.72±1.31 times as high as that in the normal lung tissue (P<0.01), and those in the A549 and H1299 cells were 3.45±0.25 and 3.22±0.33 times as high as those in the human bronchial epithelial (HBE) cells (P<0.01).The expression level of Linc00467 was significantly correlated with the tumor size and vascular invasion (P<0.05).After transfection of Linc00467-siRNA, the expressions of Linc00467 in the A549 and H1299 experimental groups were down-regulated by 72% and 68% as compared with those in the A549 and H1299 control groups (P<0.01).The number of living cells was remarkably decreased in the A549 experimental group in comparison with the A549 control at 48 h (1.29±0.07 vs 1.51±0.09), 72 h (1.53±0.15 vs 2.13±0.11), and 96 h after culturing (1.98±0.18 vs 3.02±0.12), and so was it in the H1299 experimental versus the H1299 control group, but markedly increased in the HUVEC experimental versus the HUVEC control group (P<0.05).At 5 days, HUVEC experimental group, as compared with the HUVEC control, showed a significantly increased number of newly formed vascular branches (7.36 vs 4.25/superbead, P<0.01) and relative length of the blood vessels (3.12 vs 1, P<0.01).Conclusion Linc00467 promotes tumor cell proliferation and angiogenesis and is highly expressed in the lung adenocarcinoma tissue, which is correlated with the tumor size and vascular invasion and suggests that Linc00467 could be a potential biomarker and therapeutic target.

Child, Preschool ; Chondromatosis, Synovial ; diagnosis ; diagnostic imaging ; surgery ; Diagnostic Errors ; Female ; Humans ; Tibial Fractures ; diagnosis ; Tomography, X-Ray Computed

This paper discusses variations of laparoscopic transgastric cystogastrostomy in management of retrogastric pancreatic pseudocysts for 8 patients with symptom or pseudocysts (larger than 6 cm) companied with clinical manifestations.Using a Harmonic scalpel,two 3-5-cm incisions were made in the anterior and posterior gastric wall respectively.In the last step,the anterior gastrotomy was closed with an Endo-GIA stapler.All cases were successfully treated without large blood loss and without conversion to open surgery.The mean operative time was 114.29±19.24 min,blood loss was 157.14±78.70 mL,and mean hospital stay was 8.29±2.98 days,Gastric fistula occurred in one case on the postoperative day 7,and closed 1 month later.No bleeding was seen in all patients during the perioperative follow-up period.CT scans,given one month after the surgeries,displayed that the pancreatic pseudocysts disappeared or decreased in size,and ultrasounds showed no fluid or food residue in stomas at the third and fifth month following surgery.No patient experienced a recurrence during the follow-up period.Transgastric laparoscopic cystogastrostomy is a minimally invasive surgical procedure with a high rate of success and a low rate of recurrence,accompanied by rapid recovery.It is easy to master,safe to perform and may be the preferred option to treat retrogastric pancreatic pseudocysts.

OBJECTIVETo study the protective effects of garlic oil (GO) on the peripheral nerve injuries induced by n-hexane.

METHODSMale Wistar rats were randomly divided into four groups (10 rats in each group): the control, the n-hexane treatment (2000 mg/kg), the low dose GO, and the high dose GO groups. The rats in the low and high doses of GO groups were pretreated with GO (40 and 80 mg/kg) before exposure to n-hexane (2000 mg/ kg), while the animals of the n-hexane treatment group were given normal saline and then 2000 mg/ kg n-hexane. The rats were exposed to GO and n-hexane 6 times a week for 10 weeks. The gait scores and staying time on the rotating rod for all rats were detected every two weeks. The rats were sacrificed at the end of ten weeks, then the levels of alcohol dehydrogenase (ADH), maleic dialdehyde (MDA), reduced glutathione (GSH), glutathione peroxidase(GSH-Px), total antioxidation capacity(T-AOC) and the ability of inhibition of *OH in livers were examined.

RESULTSThe gait scores increased significantly and the time staying on the rotating rod obviously decreased in rats of n-hexane treatment group, as compared with control group (P < 0.05 or P < 0.01). In the hepatic tissues of n-hexane group, the levels of MDA and ADH significantly increased, the activities of GSH-Px, T-AOC and the ability of inhibition of *OH obviously decreased, as compared to control group (P < 0.05 or P < 0.01). In 2 GO groups, the gait scores and the staying time on the rotating rod were significantly improved, the levels of MDA and ADH significantly decreased, the activities of GSH-Px, T-AOC and the ability of inhibition of *OH obviously increased, as compared with n-hexane group (P < 0.05 or P < 0.01 ).

CONCLUSIONADH could play an important role in the protective effects induced by garlic oil on the peripheral nerve injuries produced by n-hexane.

Alcohol Dehydrogenase ; metabolism ; Animals ; Garlic ; Hexanes ; toxicity ; Lipid Peroxidation ; drug effects ; Liver ; enzymology ; metabolism ; Male ; Neuroprotective Agents ; pharmacology ; Peripheral Nerve Injuries ; chemically induced ; metabolism ; Plant Oils ; pharmacology ; Rats ; Rats, Wistar

Aim To study the apoptosis effect of cucurbitacin Ⅱa on non-small cell lung cancer cell lines NCI-H460 and A549 and its underlying mechanism.Methods Cell viability was assessed by CCK-8 assay.The apoptosis effect and cell cycle arrest were detected by Flow cytometry.Western blot was employed to detect the related protein.Results The proliferation of lung cancer cell lines NCI-H460 and A549 was inhibited by CuⅡa, which showed cytotoxic activity with IC50 values of 224.9 nmol·L-1 and 108.3 nmol·L-1 against NCI-H460 and A549 respectively.CuⅡa induced the cells apoptosis and cell cycle arrest at G2/M phase.The results of Western blot showed CuⅡa inhibited the phosphorylation of STAT3 and Cofilin in a dose-dependent manner.Further, CuⅡa inhibited the phosphorylation of Aurora A, in line with the important characteristics of anti-tumor effect of Aurora A kinase inhibitor with blocking cells in the G2/M phase.Conclusion CuⅡa has obvious anti-tumor effect against non-small cell lung cancer, which suggests its value as a lead compound for lung cell carcinoma.

OBJECTIVETo evaluate the applied value of magnetoencephalography (MEG) localization in microsurgery of brain tumors in the region of motor cortex.

METHODSFrom January 2003 to April 2005, 36 patients with 19 meningomas, 14 gliomas, 2 metastases and 1 cavernous angioma underwent MEG and MRI before operation. These individualized functional brain maps were integrated into a neuronavigation system. Preoperative mapping of somatosensory and/or motor cortex was performed, and sites were compared, and all tumors were resected microsurgerically.

RESULTSA space-occupying lesion could change the region of motor cortex in all the patients. Thirty-four cases were resected totally. The patient's myodynamia after operation improved in 19 cases, unchanged in 15 cases, descended in 2 cases.

CONCLUSIONSMEG is an effective localization method of function, providing the relationship between the region of motor cortex and the tumor. And it is valuable for accurate planning in the treatment of brain tumors in the region of motor cortex.

Adolescent ; Adult ; Aged ; Brain Neoplasms ; diagnosis ; surgery ; Female ; Humans ; Magnetoencephalography ; Male ; Microsurgery ; Middle Aged ; Neuronavigation ; Neurosurgical Procedures ; methods ; Treatment Outcome

OBJECTIVETo study the value of the metal clips and endoloop snare for gastric wall defect after endoscopic full-thick resection(EFR).

METHODSAll the patients who underwent complete closure of gastric wall defect after endoscopic full-thick resection with metal clips and endoloop snare in the Endoscopy Center of Zhongshan hospital from March 2011 to October 2011 were retrospectively studied. The feasibility, safety, and efficacy were evaluated.

RESULTSFourteen patients were included in this study. The median age was 49(32-63) years. Lesions located in the gastric body in 5 cases, the gastric fundus in 8 cases, and the gastric antrum and body junction in 1 case. The were diameter was 0.6-3.0 cm. Complete closure rate was 100% using this technique. The median repair time was 12(8-20) min. No patients were converted to surgery or laparoscopic surgery. Four patients complained of abdomen pain with elevated body temperature, and ultrasonography showed minor peritoneal fluid in 2 cases, which were drained. These four cases were asked to maintain semi-reclining position and were put on fasting, continuous gastrointestinal decompression, and received antibiotics. They were discharged after 1-3 days. All the patients were followed up with a median time of 3(1-8) months. Nylon and clips residual were removed endoscopically and the wound healing was satisfactory.

CONCLUSIONMetal clips and endoloop snare is safe and effective for the closure of gastric wall defect after EFR.

Adult ; Endoscopy ; methods ; Female ; Follow-Up Studies ; Humans ; Male ; Middle Aged ; Retrospective Studies ; Stomach ; surgery ; Surgical Instruments

OBJECTIVETo investigate the value of CT and X-ray enterography in the diagnosis of small intestinal Crohn disease(CD).

METHODSData of 39 CD cases confirmed by surgery and pathology who underwent CT and X-ray enterography were analyzed retrospectively. All the patients had complete CT data, 28 cases had X-ray intestinal barium meal data, and 18 had sinus tract enterography.

RESULTSCT enterography showed mural thickening(>4 mm) in 34(87.2%) patients, mural gas in 7(17.9%), mural edema in 7(17.9%), mural fat in 4(10.3%), increased enhancement of bowel wall(>10 HU) in 37(94.9%), multiple segmental lesions in 33(84.6%), single segmental lesions in 6(15.4%), mesenteric lymphadenopathy(>5 mm) in 13(33.3%), vascular bundle thickening in 9(23.1%), cellulitis in 12(30.8%), peritoneal abscess in 10(25.6%), phlegmon in 8(20.5%), incomplete intestinal obstruction in 14(35.9%), seroperitoneum in 22(56.4%), and fistulization in 4(10.3%). CT enterography did not demonstrate the change of mucosa such as strip ulcer or cobblestone. Among the 28 cases of small bowel X-ray enterography, 23 cases(82.1%) presented with multiple segmental lesions, 5(17.9%) with single segmental lesions, 18(64.3%) with strip ulcer, 16(57.1%) with cobblestones, 4(14.3%) with intestinal fistula, while no bowel wall and extraintestinal complication of CD disease was observed. Among the 18 cases of sinus tract enterography, 13 cases (72.2%) presented with intestinal fistula, 12(66.7%) with peritoneal abscess, 8(44.4%) with sinus tract.

CONCLUSIONSCT enterography can demonstrate exactly the diseased bowel wall and extraintestinal complication of CD disease, which is important to evaluate the extent of CD and guide the treatment, however strip ulcer and cobblestone sign cannot be demonstrated. The X-ray enterography is available to demonstrate the characteristic changes of CD such as trip ulcers and cobblestones, but is difficult to show the bowel wall and extraintestinal inflammatory mass and abscesses. The sinus tract enterography is easy to demonstrate the intestinal fistula and intra-abdominal abscess. Combination of these methods is more beneficial to guild the diagnosis and treatment.

Abdominal Abscess ; Crohn Disease ; diagnosis ; Humans ; Intestinal Fistula ; Tomography, X-Ray Computed ; X-Rays