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Objective:To investigate the role of long noncoding RNA (lncRNA) small nucleolar RNA host gene 1 (SNHG1) in the resistance of pancreatic cancer PANC1 cells to gemcitabine (GEM), and clarify the relationship between SNHG1 and miR-330.Methods:The clinical data of 179 pancreatic tissue samples and 171 adjacent normal pancreas tissues were collected from the Cancer Genome Atlas (TCGA), and bioinformatics analysis was performed to analyze the expression of SNHG1 and miR-330 in pancreatic cancer tissue and adjacent normal tissue. PANC1 cell line with the resistance to GEM was established by the intermittent gradient doubling method in vitro. The GEM-resistant cells were divided into three groups: si-NC-GEM (negative control) group, si-SNHG1-GEM (transfected with siRNA targeting SNHG1) group, and GEM-resistant group. At the same time, to validate the role of miR-330 in targeting SNHG1 expression, the GEM-resistant cells were further divided into three groups: NC-inh+ si-NC group (co-transfected with negative control miR-330 inhibitor and si-NC), NC-inh+ si-SNHG1 group (co-transfected with negative control miR-330 inhibitor and si-SNHG1), and miR-330-inh + si-SNHG1 group (co-transfected with miR-330 inhibitor and si-SNHG1). qRT-PCR was used to detect the expression of SNHG1 and miR-330 in GEM-resistant cells. CCK-8 and immunofluorescence (Ki67) were used to test GEM-resistant cell growth and proliferation. Transwell and wound healing were used to test the migration and invasion in GEM-resistant cells. Bioinformatics analysis and luciferase reporter assay were used to verify the regulatory relationship between SNHG1 and miR-330. Results:Compared to the adjacent normal tissues of pancreatic cancer, the expression of lncRNA SNHG1 in pancreatic cancer tissues was significantly increased (6.543±0.72 vs 5.31±0.96), and the expression of miR-330 was greatly decreased (2.54±1.85 vs 3.01±1.23); and all the differences were statistically significant ( P<0.05). The expression of lncRNA SNHG1 in si-NC-GEM group, si-SNHG1-GEM group, and GEM-resistant group was 2.43±0.10, 0.26±0.08 and 3.25±0.310, which in si-SNHG1-GEM group was lower than those in si-NC-GEM group or GEM-resistant group. While the expression of miR-330 in si-NC-GEM group, si-SNHG1-GEM group, and GEM-resistant group was 0.47±0.13, 0.84±0.12 and 0.38±0.21, which in si-SNHG1-GEM group was higher than those in si-NC-GEM group or GEM-resistant group. All the differences were statistically significant ( P<0.05). Compared to the si-NC-GEM group or GEM-resistant group, A450, Ki67, number of migrated cells and the distance of invasion in si-SNHG1-GEM group were all decreased, and the differences were statistically significant ( P<0.05). Otherwise, luciferase activity of miR-330-WT in si SNHG1-GEM group was significantly higher than that in NC siRNA group (3.21±0.22 vs 1.03±0.18). The luciferase activity of SNHG1-WT in miR-330 inhibitor group was significantly lower than that in NC inhibitor group (0.97±0.21 vs 2.32±0.17). In miR-330-inh+ si-SNHG1 GEM-resistant group, the cell A450, Ki67, migration cell and distant of invasion was higher than those in NC-inh+ si-SNHG1 group, and the difference was statistically significant (all P value<0.05). Conclusions:lncRNA SNHG1 targeting miR-330 could promote GEM resistance in pancreatic cancer PANC1 cells.
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OBJECTIVE@#To investigate curative effect and importance of radiofrequency thermocoagulation onsemilunar ganglion of aged patients with recurrent trigeminal neuralgia.@*METHOD@#112 cases with recurrent trigeminal neuralgia were performed with radiofrequency thermocoagulation on semilunar ganglion by puncture through skin under local anesthesia.@*RESULT@#The maintaining effective duration in 112 cases was 7.3 ± 1.3 years after primary therapy. After the first thermocoagulation, 89.28% (100/112) patients got the relief from pain immediately, 8 (7.14%) cases also recieved the same effect after twice treatment. However two cases (2.6%) had no effects. The total effective rate was 98.21%. During five follow-up years, VAS scores, dose of carbamazepine and satisfaction were better than those before the treatment. The effective rate was still over 57.5% within three years after the treatment. The recurrent risk increased obviously from 40 months after the treatment by Kaplan-Meier method.@*CONCLUSION@#Semilunar ganglion of radiofrequency thermocoagulation was an ideal option for old-age patients with trigeminal neuralgia. It can be performed repeatedly.
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Aged , Humans , Electrocoagulation , Recurrence , Treatment Outcome , Trigeminal Ganglion , General Surgery , Trigeminal Neuralgia , General SurgeryABSTRACT
Objective To explore the impact of basal sphincter of Oddi (SO) pressure on pancreatobiliary reflux (PBR).Methods A total of 120 consecutive patients who received therapeutic ERCP for biliary tract diseases with or without the history of EST were enrolled,and were assigned to normal basal SO pressure group (n =23),elevated basal pressure group (n =55) and EST group (n =24).Basal SO pressure,bile amylase (BA) and bacteria culture findings were compared between the three groups.Results There were no differences in positive rate of bacteria culture,SO pressure increase and BA between the normal basal SO pressure group and elevated basal pressure group.In the latter group,negative correlation was observed between SO pressure and BA.The BA value [median(quartile range)] in patients with common bile duct ≥ 15 mm [4270 (12 337)U/L] was significantly higher than that in patients with common bile duct ＜ 15 mm [279.5 (1370) U/L].Furthermore,significant difference in both the proportion of elevated BA patients (83.3％ vs.59.0％) (P ＜0.05) and the positive rate of bacteria culture (75.0％ vs.33.3％) was seen between the intact papilla patients in the former two groups and those in EST group (P ＜ 0.05).Conclusion There was no direct correlation between the elevated basal SO pressure and PBR,but marked increase in diameter of common bile duct can lead to a rise in BA.Moreover,although EST can bring about PBR and bile bacterial infection,it may facilitate the outflow of the refluent pancreatic juice by relieving cholestasis.
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ObjectiveTo discuss the value of immunochemical fecal occult blood test (IFOBT) in diagnosis of colorectal diseases.Methods Two hundred and fifty-one patients who taken IFOBT and chemical fecal occult blood test(CFOBT) from January 2008 to August 2011 were enrolled in this study.They were definitely diagnosed by total colonoscopy combined with pathology.ResultsThe positive rate of IFOBT and CFOBT in colorectal cancer patients was 100.0％(57/57) and 84.2％(48/57),there was significant difference (P ＜ 0.05).The positive rate of IFOBT and CFOBT in colorectal polyp patients was 38.6％ (32/83) and 10.8％(9/83 ),there was significant difference(P ＜ 0.05 ).The positive rate of IFOBT and CFOBT in inflammatory bowel disease patients was 100.0％(31/31) and 80.6％(25/31),there was no significant difference (P ＞ 0.05).Thepositive rate of IFOBT and CFOBT in non-specific enteritis patients were 86.8％ (33/38) and 73.7％ (28/38),there was no significant difference (P ＞ 0.05 ).The positive rate of IFOBT and CFOBT in normal colorectal cases was 2.4％(1/42) and 19.0％(8/42),there was siguificant difference (P ＜ 0.05).ConclusionsIFOBT is better than CFOBT in diagnosis of colorectal cancer and colorectal polyp.IFOBT has lower false positive rate.
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Objective To explore the impact of pancreatobiliary reflux (PBR) in normal pancreatobiliary junction on gallbladder.Methods A total of 54 patients receiving cholecystectomy for gallbladder diseases underwent ultrasonography to evaluate the thickness of gallbladder wall,inner layer and gallbladder wall blood flow before operation.The bile juice was sampled during ERCP in 45 patients with common bile duct stone and during cholecystectomy in 9 patients to detect amylase level.All patients with normal pancreatobiliary junction enrolled in the study were assigned into PBR group (n =24) and controlled group (n =30) according to their bile amylase level.Resected gallbladder specimens were examined histopathologically and then tested for expression of COX2,Ki-67 and p53 immunohistochemically.Results PBR group included 20 cases of cholelithiasis and 4 gallbladder polyp,among which 23 were occult PBR (OPBR) and 1 high confluence of pancreatobiliary ducts (HCPBD),which was similar to pancreatobiliary maljunction (PBM) pathologically.The control group recruited 28 cases of cholelithiasis and 2 gallbladder polyp.There were no differences in frequency of inflammation,hyperplasia,metaplasia or expression of p53 between the two groups (p ＞ 0.05),while higher presence of dysplasia and higher expression of COX2 and Ki-67 were seen in PBR group (p ＜ 0.05).Conclusion In patients with OPBR,although hyperplasia and metaplasia in gallbladder epithelium were similar to those induced by cholelithiasis,dysplasia and active proliferation might relate to progress to malignancy.
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ObjectiveTo investigate the correlation between ineffective esophageal motility (IEM)and gastroesophageal reflux disease (GERD).MethodsA total of 90 GERD patients were enrolled in our study,including 62 patients with reflux esophagitis (RE) and 28 with non-erosive reflux disease (NERD).All the patients underwent gastroscopy,24-hour esophageal pH monitoring and esophageal manometry.ResultsIn the RE group 30 (48.4％) patients were diagnosed as having IEM,which was significantly higher than the NERD group (6 patients,21.4％ ) (P＜0.05).Positive esophageal acid exposure was more often seen in patients with IEM than in those with normal esophageal motility (91.7％ v.s.57.2％,P ＜0.01 ).The values of total percentage of time with pH ＜4,percentage of reflux time in supine position,long-duration episodes ( ＞5 min) and the longest reflux time and DeMeester score were significantly higher in the IEM cases than those in the normal esophageal motility cases ( P ＜ 0.01 ),so was the values of number of reflux episodes (P ＜ 0.05).ConclusionIEM is the most common esophageal dysmotility in patients with GERD and closely related to distal esophageal acid exposure and RE.
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OBJECTIVE@#To investigate the clinical characteristics and therapy methods of Keratoacanthoma.@*METHOD@#We reported a 39 years old man with nasal keratoacanthoma, and reviewed the literatures.@*RESULT@#The nasal neoplasms was expected, and the patient had a rhinoplasty. No recurrence happened in the half of one year follow up.@*CONCLUSION@#Keratoacanthoma is a kind of low malignant potential cutaneous neoplasms which grow rapidly with special clinical and histopathologic characteristics and is similar to squamous carcinoma cell.
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Adult , Humans , Male , Keratoacanthoma , Nose DiseasesABSTRACT
Objective To investigate the relationship of pancreatic exocrine function with the pancreatic cancer staging and the size of tumor. Methods N-benzoyl-tryrosyl para-aminobenzoic acid (NBT- PABA) test was used to measure the pancreatic exocrine function of 39 pancreatic cancer patients, 46 chronic pancreatitis patients and 20 normal subjects. In pancreatic cancer group, the relationship of pancreatic exocrine function with the size of tumor (TS) and JPS classification (T factor) was analysed. Results The rate of NBT-PABA excretion in normal subjects, chronic pancreatitis patients were (78.9±15.9)%, (58.6± 19.3)%, respectively; in mild, moderate, severe chronic pancreatitis patients, the values of NBT-PABA were (75.5±23.6)%, (57.9±21.5)%, (45.5±16.7)% ; respectively. The rate of NBT-PABA excretion in pancreatic cancer patients was (47.6±18.3)%, and the rate of NBT-PABA excretion in patients with T3+T4 stage was (42.2±21.70%, and was obviously less than (64.8±11.2)% of T1+T2 stage (P<0.05). Tthe rate of NBT-PABA excretion in patients with TS3+TS4 was (34.8±17.2)%, and was significantly lower than (55.6±23.5)% of TS1+TS2(P<0.05). The rate of NBT-PABA excretion in patients with pancreatic head cancer was (42.5±16.4)%, which was significantly lower than (71.8±9.6)% of the pancreatic body and tail (P<0.05). In the 33 patients with pancreatic head cancer, the rate of NBT-PABA excretion in patients with main pancreatic duct stricture was (54.2±14.1) %, which was significantly higher than (37.6± 14.1)% of patients with main pancreatic duct interruption (P<0.05). There was no significant difference in pancreatic exocrine function between pancreatic cancer and moderate or severe chronic pancreatitis.Conclusions The pancreatic exocrine function was related to the pancreatic cancer staging and the size of tumor to some degree,but it was affected by mass location,and it was also affected by degrees of the pancreatic duct obstruction. The pancreatic exocrine function can not be used to differentiate pancreatic cancer from moderate or severe chronic pancreatitis.
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OBJECTIVE@#To explore the effective intracranial surgical method for hemifacial spasm which can be operated more safely and easily.@*METHOD@#Twenty-five cases of hemifacial spasm underwent intracranial facial nerve root combing scraping by improved retrosigmoid approach. The compressing vessels were found in 10 cases and could be removed easily. Both microvascular decompression and facial nerve root combing scraping were performed to reduce recurrence. The other cases with perforating artery or without any compressing vessels underwent the facial nerve root combing scraping and cutting off partially for about 1/6 to approximately 1/5 neural fibers.@*RESULT@#Hemifacial spasms were obliterated in 22 cases (88%) after operation, obviously relieved in 2 cases (8%), invalid in 1 case (4%). Varied facial nerve paralysis was observed in 25 patients, but no hearing disturbance and other serious complication occurred. Follow-up for 2 to approximately 8 years showed there were recurrences in 2 cases (8%) and the facial nerve paralysis of 25 cases recovered in 1 to approximately 6 months after operation.@*CONCLUSION@#The facial nerve root combing scraping is an effective and safe microsurgical procedure which has wide-ranged indication and less complication. It is very important to select suitable treatment for the patient individually during the operation to improve the efficacy and lower the risk.
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Adult , Aged , Female , Humans , Male , Middle Aged , Young Adult , Decompression, Surgical , Facial Nerve , General Surgery , Facial Paralysis , General Surgery , Hemifacial Spasm , General Surgery , Microsurgery , MethodsABSTRACT
Objective To investigate the role of the expressions of APC,bcl-2 and c-met gene in the progress of gastric cancer and their significances in the diagnosis of early gastric cancer.Methods The immunohistochemical technique was used to detect the expressions of APC,bcl-2 and c-met gene in 30 cases of human gastric carcinoma(GC),30 cases of intestinal metaplasia(IM),30 dysplasia(Dys) gastric mucosa,10 gastric adenoma(GA) and 20 normal gastric mucosa.Results ①The positive expression rates of APC in GC,IM,Dys and GA(53.3%,67.7% and 53.3%,respectively) were significantly lower than those in normal gastric mucosa(90.0%,P