Objective To investigate the clinical features of pedistric Littre hernia.Methods Clinical data of 11 cases of Littre hermia admitted from January 2002 to December 2010 was studied retrospectively.Results The diagnosis of Littre hernia was all established by laparotomy.All of the 11 cases were boys,the median age was 1.2 years (22 days to 3 years and 7 months).The main clinical features were:painful,irregular and nonresetable mass in the groin area (11/11),vomiting in 6 cases (6/11 ),fever (＞38.5 ℃ ) in 4 cases (4/11 );X-ray showed intestinal obstruction in 9 cases (9/11 ),Ultrasound found mixed mass in the groin area in 11 cases ( 11/11 ),pouch-like structure were found in 6 cases (6/11).Eight cases (8/11) presented with elevated WBC ( ＞ 10000).Palpable lobulated structure were fell in 5 cases (5/11).All cases of Littre hernia were successfully operated on,Meckel diverticulum perforation was found in 2 cases ( 2/11 ),Meckel diverticulum adhered to the hernia sac in 8 eases (8/11).All patients were cured by surgery,and postoperative follow-up (10ms-8y) found no recurrence.Conclusions Pediatric Littre hernia is rare,preoperative diagnosis is difficult.Avoiding preoperative violent reduction and intraoperative injuring Meekel's diverticulum or the small bowel helps improve the cure rate of Littre hernia in children.

ObjectiveTo evaluate the efficacy of different dones of urapidil in preventing pituitrin-induced cardiovascular responses in patients undergoing laparoscopic myomectomy.MethodsSixty ASA Ⅰ or Ⅱ patients,aged 27-41 yr,weighing 55-65 kg,scheduled for elective laparoscopic myomectomy under general anesthesia,were randonly divided into 4 groups (n =15 each):control group (group C) and urapidil 0.3,0.5 and 0.8 mg/kg groups (groups U1-3).Urapidil 0.3,0.5 and 0.8 mg/kg were injected intravenously in U1-3 groups respectively,while normal saline 5 ml was given in group C.The mixture of pituitrin 6 U and normal saline 20 ml was injected into the site of hysteromyoma 5 min later.The operation was then started.BIS value was maintained at 45-55.The occurrence of cardiovascular responses was recorded.ResultsThe incidences of cardiovascular responses were 100％,67％,40％ and 20％ in groups C and U1-3 respectively.The incidence of cardiovascular responses was significantly lower in groups U1-3 than in group C,and in groups U2.3 than in group U1 ( P ＜ 0.01 ).There was no significant difference in the incidence of cordiovascular responses between U2 and U3 groups (P ＞ 0.05).ConclusionUrapidil can prevent pituitrin-induced cardiovascular responses in patients undergoing laparoscopic myomectomy and the optimal dose is 0.5 mg/kg.

Objective To investigate whether the proteasomes inhibitor MG262 exerts its anticancer function by inducing apoptosis in human ovarian cancer cells,and whether the extracellular signal regulated kinase (ERK) signaling pathway is involved in the regulation of apoptosis induction.Method Human ovarian cancer cell line SKOV3 was incubated with different concentrations of MG262 for 24 and 48 hours.Cell viability was evaluated with 3-(4,5-dimethyhhiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay at different time points of culturing.Flow cytometry was used to detect cell apoptosis rate.The expression of vascular endothelial growth factor (VEGF) was evaluated with western blot and enzyme-linked immtmosorbent assay (ELISA).Western blot was used to detect the expression of phosphorylated ERK(pERK) .Results The viability of SKOV3 cells was decreased by MG262 in a concentration-dependent fashion(P＜0.05).After 24 h incubation with MG262 at 1,10,20,40,60 and 80 nmol/L,the viability rates of SKOV3 were (94.6±3.1)%,(92.7±3.7)%,(89.5±7.7)%,(84.2±5.1)%,(82.0±7.4)%and(76.8±11.0) % respectively,and after 48 h incubation,those figures were further decreased to (91.3±10.1)%,(86.8±4.5)%,(74.6±4.2)%,(56.8±2.1)%,(49.3±4.5)% and (37.4±5.4) %,respectively(P＜0.05).Apoptosis rate of SKOV3 cells induced by MG262,PD98059 or their combination was (30.7±4.3)%,(26.8±8.6)% and (50.3±10.6)%,respectively,which were significantly different compared with controls (P＜0.05).In contrast to SKOV3 cells,apoptosis rate of 293T ceils induced by MG262,PD98059 or their combination was (14.5±5.3) %,(16.2±7.5) % and (10.8±7.3)%,respectively,which were not significantly different compared with controls (P＞0.05).pERK expression decreased gradually in a time-dependent manner. And wild-type p53 expression was not significantly different.There was no significant difference between experimental and control 293T cells(P＜0.05).In addition,MG262 down-regulated VEGF secretion and expression in SKOV3 ceils (P＜0.05).Conclusions Proteasome inhibitors can induce apoptosis and inhibit cell proliferation and angiogenesis through ERK signal pathway in SKOV3 cells.

Objective To investigate the correlation of plasma matrix metalloproteinase-3 (MMP-3)levels and MMP-3 Lys45Glu (rs679620) polyrnorphism with ischemic stroke and its TOAST subtypes.Methods The patients with large artery atherosclerotic stroke (LAA) and small artery occlusion stroke (SAO)according to TOAST etiological typing (ischemic stroke group) and healthy subjects (control group) were enrolled.The enzyme-linked immunosorbent assay was used to detect plasma MMP-3 level.The polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) was used to detect the genotypes of MMP-3 Lys45Glu.Results A total of 233 patients with ischemic stroke were enrolled,in which 162 were LAA and 71 were SAO; 200 healthy subjects were taken as controls.The plasma MMP-3 level in the ischernic stroke group was significantly higher than that in the control goup (253.99 ± 75.02 ng/ml vs.196.38 ± 78.17 ng/ml;t =7.813,P=0.000).The plasma MMP-3 level in the LAA group (262.81 ±69.23 ng/ml) was significantly higher than those in thegroups of SAO (233.85 ± 83.90 ng/ml,P =0.008) and control (P =0.000),and the plasma MMP-3 level in the SAO was also significantly higher than that in the control group (P =0.000).Multivariate logistic regression analysis showed that the increased serum MMP-3 level was an independent risk factor for ischemic stroke (odds ratio [OR] 1.012,95％ confidence interval [CI] 1.008-1.015; P =0.000).There was no significant difference in the frequencies of genotype (x2 =2.085,P =0.353) and allele (x2 =2.29,P =0.130) of MMP-3 Lys45Glu between the ischemic stroke group and the control group.However,there were significant difference in MMP-3 Lys45Glu genotype frequencies among.the groups of LAA,SAO and control (x2 =10.39,P=0.034).The AA + GA genotype frequency in the LAA group was significant higher than those in the groups of SAO (65.4％ vs.49.3％ ;x2 =5.375,P =0.020) and control (65.4％ vs.54.0％ ;x2 =4.84,P =0.028).There was no significant difference in the allele frequencies among the groups of LAA,SAO and control (x2 =3.887,P =0.143).Multivariate logistic regression analysis showed that MMP-3 Lys45Glu polymorphism was an independent risk factor for LAA (OR 1.783,95％ CI 1.183-2.688; P =0.006).The plasma MMP-3 level in patients with the genotypes AA (n =73),GA (n =176) and GG (n =184)were 235.70 ± 70.85 ng/ml,(244.20 ± 85.90 ng/ml and 207.98 ± 77.61 ng/ml.There were significant difference in the plasma MMP-3 levels among the patients with the genotypes AA,GA and GG (F=9.682,P =0.000).The plasma MMP-3 level in the patients with the genotype AA + GA was significantly higher than that in patients with genotype GG (241.71 ± 81.73 ng/ml vs.207.98 ± 77.61 ng/ml; t =4.336,P =0.000).Conclusions The plasma MMP-3 level increased in patients with LAA or SAO,especially in the patients with LAA.The MMP-3 Lys45Glu polymorphism might be associated with the plasma MMP-3 level and LAA.

Animals ; Brain Edema ; Brain Ischemia ; Cerebral Infarction ; Cerebrovascular Circulation ; Rats ; Reperfusion ; Reperfusion Injury

Objective To assess the risk factors that could influence the severity of esophageal inju- ry in patients with gastroesophageal reflux disease(GERD).Methods GERD patients diagnosed on the ba- sis of endoscopic reflux esophagitis or pathological results of 24 hour esophageal pH monitoring were divided into three groups as non-erosive reflux disease group(NERD)(n=83),mild esophagitis group(n=51) and severe esophagitis group(n=22).The clinic data and esophageal pH parameters were recorded in the three groups.A logistic regression was used to assess the joint influences of clinic characteristics,hiatus her- nia,and esophageal pH parameters on the severity of esophageal injury.Results Patients in severe esoph- agitis group were more likely to have advanced age and hiatus hernia.The number of supine long reflux epi- sodes measured by esophageal pH monitoring significantly increased with increasing grades of mueosal dam- age(P

425 halophilic bacteria strains were isolated by using six different media from thirty salt-soil samples collected from Heijing ancient salt mine,Yunnan. By the growth on NaCl grandient concentration and other screening methods,79 strains of extremely halophilic microorganisms were chosen for further research. Based on colonies color,shape and size,15 stains were selected to be sequenced. The sequencing results revealed that 11 of them were haloarchaea. According to the phylogenetic analysis,they belong to four genera of the family Halobacteriaceae. The blast results showed that the similarities of six sequences were higher than 97 % with the validly described species of the following four genera: Halorubrum,Natronococcus,Natrialba,Halalkalicoccus. The similarities of other five sequences with any validly described species were less than 97 %,therefore,the taxonomic positions of the following five strains YIM-ARC 0032,YIM-ARC 0036,YIM-ARC 0037,and YIM-ARC 0050 could be determined according to further polyphasic taxonomy data.The results indicated that there was a considerable diversity of haloarcheaea in salt-mine environment of Heijing ancient salt mine,Yunnan and it was worth continuing to research on this area.

OBJECTIVETo study the effects of tuina on the mechanical properties of skeletal muscles of four limbs in patients with chronic fatigue syndrome (CFS).

METHODSThirty CFS patients were recruited as the test group, while another 30 healthy volunteers were recruited as the healthy control group. Patients in the test group received tuina therapy, 30 min each time, once every other day, for totally 10 times. Isokinetic testing technology was used to compare peak torque (PT), total watt (TW), average power (AP), and flexor/extensor (F/E) ratio in the elbow and knee muscles of CFS patients before and after treatment. The Functional Assessment of Chronic Illness Therapy (FACIT) fatigue scale was used to evaluate the fatigue degree before and after treatment, and compared with the healthy control group.

RESULTSAfter treatment the FACIT fatigue scale score decreased significantly in the test group when compared with before treatment (27.5 +/- 9.1 vs 42.5 +/- 11.2), showing statistical difference (P < 0.05). The pre-treatment PT, TW, AP, and F/E ratio in the skeletal muscle were all lower in the test group than in the healthy control group. Compared with before treatment in the test group, patients' elbow 60 degrees/s angular velocity values during exercise extensor PT and TW, knee 60 degrees/s and 180 degrees/s angular velocity values during exercise flexor PT and TW increased significantly; elbow extensor and knee extensor, flexor AP was significantly elevated; knee in 180 degrees/s angular velocity of movement F/E ratio significantly increased, and all the differences were statistically significant (P < 0.05). The improvement of the fatigue degree in CFS patients and elbow in 60 degrees/s angular velocity values under the flexor and extensor TW, and flexor AP value of the degree of improvement were negatively correlated (r = -0.282, -0.482, -0.285, P < 0.05, P < 0.01). Meanwhile, the muscles with the knee in 180 degrees/s angular velocity was negatively correlated with the F/E ratio of the degree of improvement (r = -0. 330, P < 0.05).

CONCLUSIONSCFS patients have lowered mechanical properties of four limbs. Tuina therapy can improve the biomechanical properties of limb skeletal muscle and reduce the overall degree of fatigue in patients. The changes of limb skeletal muscle and mechanical properties can provide objective reference for the clinical diagnosis and assessment of CFS.

Adult ; Case-Control Studies ; Fatigue Syndrome, Chronic ; physiopathology ; therapy ; Female ; Humans ; Male ; Medicine, Chinese Traditional ; Middle Aged ; Muscle, Skeletal ; physiopathology

BACKGROUNDTo construct recombinant retroviral vector expressing HBcAg in eukaryotic cells.

METHODSThe HBV core gene fragment was amplified by using PCR from pADR which contains complement nucleotide sequence of HBV subtype adr and cloned into retroviral expression plasmid pLXSN, then transfected into packing cell (PT67) with lipofec AMINE. After 2-3 weeks selection with G418, large colonies were isolated and transferred to individual plates. Virus-containing medium was collected and used to infect NIH3T3, EL4 and mouse bone marrow derived dendritic cells(DC). DNA was extracted from infected cells and tested by PCR. Indirect immunofluorescence and FACS were used to detect the expression of HBcAg. Cell mediated immunity of immunized C57BL/6 mice with transduced DC was analyzed.

RESULTSThe insertion of HBV core gene fragment in the recombinant retroviral plasmid was confirmed by PCR as well as enzyme digestion with EcoR1 and BamH2. The viral titer reached 3 x 10(5) CFU/ml. The result of PCR showed that the HBV core gene had been integrated into the genome of infected NIH3T3 cells. Indirect immunofluorescence and FACS analysis showed that HBcAg had been expressed in these cells. HBcAg specific CTL responses could be generated in mice immunized with retrovirus transduced DC.

CONCLUSIONSHBV core gene had been integrated into eukaryotic cells with retroviral vector and target gene had been expressed efficiently. These results may have some impact on gene therapy of chronic hepatitis B.

3T3 Cells ; Animals ; Cloning, Molecular ; Dendritic Cells ; metabolism ; Eukaryotic Cells ; metabolism ; Genetic Vectors ; Hepatitis B Core Antigens ; biosynthesis ; genetics ; Hepatitis B virus ; genetics ; Humans ; Mice ; Recombination, Genetic ; genetics ; Retroviridae ; genetics ; Transfection

Objective To investigate small intestinal stromal tumors(SIST) of the clinical features,risk factors,diagnosis and treatment methods,and prognosis.Methods A retrospective analysis of clinical data and follow-up data of 56 SIST patients who had been confirmed by our department from December 2012 to August 2016.Results Of the 64 patients with SIST,45 were proximal small intestine (70.3％)and 19 were the distal small intestine (29.7 ％).The clinical manifestation of SIST is not typical,the first symptoms were digestive tract hemorrhage in 30 cases (46.9％),abdominal pain in 18 cases (28.1％),abdominal mass in 8 cases (12.5％),abdominal distention in 5 cases (7.8％),nausea and vomiting in 3 cases (4.7％).The detection rate of spiral CT for SIST was 98.2％ and the diagnostic coincidence rate of spiral CT for SIST was 57.9％,which was the highest in all the examinations.The postoperative pathological findings of 64 patients with SIST showed:8 cases of very low risk (12.5％),22 cases of low risk (34.4％),3 cases of moderate risk (4.7％) and 31 cases of high risk (48.4 ％％).There were differences in tumor diameter,mitotic figures,tumor risk and Ki-67 positive rate between the proximal and distal SIST(P＜0.05).The proximal SIST are less than equal to 5cm in diameter,and mitotic index less than equal to 5/50 high power field (HPF).The positive rate of Ki-67 in the proximal SIST is lower than that in the distal SIST.Tumor diameter,tumor nucleus mitotic counts,imatinib therapy and risk factors were correlated with SIST recurrence.Conclusion Gastrointestinal bleeding is the most common clinical manifestation of SIST and the incidence of proximal SIST is higher than that of distal SIST.Among the various methods of examination,spiral CT is the most effective means of inspection.The malignancy of the distal SIST is higher than that of the proximal SIST,and the distal SIST is more likely to relapse and metastasisthan the proximalSIST.