Objective To study the effect of laparoscopicassisted radical gastrectomy in advanced gastric cancer.Methods According to the inclusion criteria,164 patients with advanced gastriccancer who treated in the Cancer Institute and Hospital,Chinese Academy of Medical Sciences betweenJanuary and June of 2009 were enrolled into the study.Based on the operation methods,all cases were divided into the experimental group(laparoscopy group,n =79)and the control group(laparotomy group,n =85).Except for the laparoscopicassisted radical gastrectomy,patients received the same treatment in thethe experimental group and control group.Intraoperative indexes,postoperative pathological results and recovery,complications and 5year survival rate were observed and compared between groups.Results Therecovery time of patient's general condition in the experimental group was shorter than that of the controlgroup(P <0.05).The difference of serious postoperative complications rate between the two groups wassignificant(P <0.05).The difference of 5year survival rate between the two groups was not significant(P >0.05).Conclusion Laparoscopicassisted radical gastrectomy is safe and feasible in the treatmentof advanced gastric cancer.This technique could get equal treatment effect as laparotomy and it has obviousadvantage in postoperative recovery.

Objective To summarize the experience of diagnosis and treatment of the duodenal polys.Methods 14 patients of duodenal polys admitted between 1987 and 2006 were analyzed retrospectively.Results Clinical manifestations were melena,epigastric discomfort, abdominal pain,weight loss and abdominal distention.The ratio of correct diagnosis were 60% with duodenal endoscopy,56% with upper gastrointestinal radiography and 44% with CT.Most duodenal adenomas located at the second portion of the duodenum.8 duodenal adenomas turned into carcinoma and 2 cases recured in a year after operation.Conclusion Duodenal endoscopy and upper gastrointestinal radiography were effective for diagnosis of duodenal polys.Endoscopic ultrasound(EUS)helps to improve the diagnosis of the leions in submucosa.It should pay attention to the treatment of doudenal adenomas actively.The surgery remained the mainstay of the treatment.It needed attention for the screening and treatment of the duodenal adenomas.

Objective To investigate the correlation of diabetic skeletal muscle disease with macroangiopathy, and to explore the related genes of Shenqi Compound Recipe (SCR) in preventing and treating diabetic skeletal muscle disease by using gene chip technique, thus to reveal the molecular mechanism. Methods KKAy mice were fed with water containing nitri oxide synthase inhibitor of Nω-nitro-L-arginine methyl ester ( L-NAME) and high fat diet to induce the macroangiopathy complicated with type 2 diabetes. The experimental animals were divided into normal c57BL/GJ group, KKAy group, model group, SCR group (in the dosage of 14.4 g·kg-1·d-1) and rosiglitazone group ( in the dosage of 1.33 mg·kg-1·d-1) , 15 in each group. The medication groups were administered the corresponding agents for 8 consecutive weeks just as the modeling began. During the experiment period, blood glucose was monitored. At the end of the experiment, the abdominal aorta and skeletal muscle of mice were taken out for the observation of morphological changes, and differentially expressed genes of skeletal muscle between SCR group and model group, and between model group and KKAy group were detected by gene chip technique. Results SCR had an effect on relieving the atrophy, edema, fracture, and inflammatory changes in the skeletal muscle. There were 198 genes differentially expressed between model group and KKAy group, including 119 up-regulated genes and 79 down-regulated genes. There were 70 genes differentially expressed between SCR group and model group, including 33 up-regulated genes and 37 down-regulated genes. In the two comparison groups, 7 genes ( Celsr2, Rilpl1, Dlx6as, 2010004M13Rik, Anapc13, Gm6097, Ddx39b) showed reversed differential expression. Conclusion Diabetic skeletal muscle disease is associated with macroangiopathy. SCR has preventive effect on diabetic skeletal muscle lesion, and the mechanism may be related to the regulation of Celsr2, Rilpl1, Dlx6as, 2010004M13Rik, Anapc13, Gm6097, Ddx39b gene expression.

Objective To investigate the characteristics of motor development in children with mental retardation. Methods Motor development was assessed with the Peabody Developmental Motor Scale 2 (PDMS-2) and mental development with adaptive developmental quotient (ADQ) of Gesell developmental schedules (GDS) in 430 infants (6~36 months old) with mental retardation. Results The gross (GDQ), fine (FDQ) and total motor developmental quotient were poor in all the children, and significantly different among children with slight, mild, and serious retardation (P<0.01). ADQ correlated with each sub-score of PDMS-2 (P<0.01). For PDMS-2, FDQ correlated with sub-scores of gross motor, and GDQ with sub-scores of fine motor (P<0.01) in all the mental retardate children. Conclusion The development of both gross and fine motor is poor in children with mental retardation. Mental development correlate with motor development, and gross with fine motor development.

ObjectiveTo investigate the correlation between the Gesell Developmental Scale and the Peabody Developmental Motor Scale-2(PDMS-2) in children with zentrale koordination storung(ZKS).Methods657 children with ZKS, aged 3 to 8 months, administered both the Gesell Developmental Scales and the PDMS-2. The correlation coefficients of the Gesell gross motor developmental age and the PDMS-2 gross motor subscale age-equivalent scores, the Gesell fine motor developmental age and the PDMS-2 fine motor subscale age-equivalent scores, the Gesell gross motor Developmental Quotient(G-GMDQ) and the PDMS-2 Gross Motor Quotient (P-GMDQ), the Gesell fine motor DQ(G-FMDQ) and the PDMS-2 Fine Motor Quotient(P-FMDQ) was compared by the Spearman rank correlation coefficient.ResultsThe correlation coefficients of the Gesell motor developmental age and the PDMS-2 motor subscale age-equivalent scores were 0.755 to 0.845(P<0.01). The correlation coefficients of G-GMDQ and P-GMDQ, G-FMDQ and P-FMDQ were 0.645 and 0.677(P<0.01) respectively.ConclusionThe concurrent validity were high correlation between the PDMS-2 gross motor subscale age-equivalent scores and the Gesell gross motor developmental age, the PDMS-2 fine motor subscale age-equivalent scores and the Gesell fine motor developmental age, and P-FMDQ and the G-FMDQ. The concurrent validity was moderate correlation between P-GMDQ and G-GMDQ.

Objective To study the distribution of antinuclear antibodies ( ANAs) in a healthy population and the significance of using ANAs screening test in medical examination .Methods The ANAs were measured by indirect immunofluorescence assay ( IIF) .The Western blot assay was used to detect fif-teen specific antibodies against auto-antigens .Results 3519 out of all 25 110 subjects showed ANAs titers>1∶100 , and among them male and female subjects were respectively accounted for 1143 and 2376 .1489 out of all subjects had ANAs titers >1∶320 , and among them male and female subjects were respectively accounted for 406 and 1083 .The positive rates of ANAs at different titers showed significant differences be -tween male and female subjects .Among subjects with ANAs titers >1∶320 , the number of male subjects showed a steady increase with the age , while the percentage of female subjects reached to two peaks during the periods of puberty and menopause .The fifteen specific antibodies were detected in 659 out of 1489 sub-jects with ANAs titers>1∶320 and anti-Ro-52 (14.2%) accounted for the majority , followed by anti-M2 (12.7%) and anti-SSA (9.6%).Conclusion ANAs can be detected among healthy population of all ages, but their distribution varied with gender and age .ANAs screening test is necessary for medical exami-nation of healthy population , especially for female during period of puberty or menopause .The population with positive ANAs should be followed-up closely and educated for the prevention of autoimmune diseases .

Objective To evaluate the changes in the activity of extracellular signal-regulated kinase 5 (ERK5) in the distal cerebrospinal fluid contacting neurons (CSF-CNs) in the mid-brain of morphine dependent rats.Methods Forty-eight male adult Sprague-Dawley rats weighing 230-270 g,were randomly divided into 2 groups (n =24 each) using a random number table:control group (group A) and morphine dependence group (group B).Morphine dependence was induced by increasing doses of subautaneous morphine for 5 consecutive days.The initial dose of morphine was 10 mg/kg twice a day and was increased by 10 mg/kg everyday until 50 mg/kg on 5th dav.The equal volume of normal saline was injected subcutaneously instead of morphine in group A.On 3rd day after morphine dependence was induced,the distal CSF-CNs in the mid-brain was labeled with 30％ cholera toxin subunit B and horseradish peroxidase compound (CB-HRP) 3 μl injected in the lateral cerebral ventricle in the morning.At 4 h after the last injection of morphine,the segments in which CSF-CNs were located were removed,and CB-HRP positive neurons,phosphor-ERK5 (p-ERK5) positive neurons and CB-HRP/p-ERK5 positive neurons were counted.Results Compared with group A,the number of p-ERK5 and CB-HRP/p-ERK5 positive neurons in the mid-brain was significantly increased (P ＜ 0.05),and no significant change was found in CB-HRP positive neurons in group B (P ＞ 0.05).Conclusion The enhanced activity of ERK5 in the distal CSFCNs in the mid-brain may contribute to the development of morphine dependence in rats.

Objective To investigate the roles of spinal extracellular signal-regulated protein kinases 5 (ERK5) on morphine withdrawal in rats.Methods Ninety-six male and adult SD rats weighting 230-250 g were randomly divided into saline-naloxone-DMSO group (group A),saline-naloxone-BIX02188 group (group B),morphine-naloxone-DMSO group (group C) and morphine-naloxone-BIX02188 group (group D).To set up morphine dependent model,rats were subcutaneously injected with morphine in the increasing dosage method.On day 6,4 h after the injection of morphine,rats were injected with naloxone (intraperitoneal) to precipitate morphine withdrawal syndrome.The scores of morphine withdrawal symptom and morphine withdrawal-induced allodynia were observed after intrathecal injection of ERK5 inhibitor BIX02188.Result There were not withdrawal symptoms and withdrawal-induced allodynia in group A and B after intraperitoneal injection of naloxone.Compared with group A,teeth chatting (7.5± 1.1),wet dog shacks (4.6± 0.7),jump (5.3± 0.7),abnormal position (8.9± 1.9),diarrhea (7.1 ± 1.6),salivation (2.8±0.6),weight loss (7.9±0.9),total withdrawal score (44.8±5.9),score of withdrawalinduced allodynia (14.6±2.4) of group C and teeth chatting (3.1±0.5),wet dog shacks (1.5±0.4),jump (2.2± 0.5),abnormal position (7.9± 1.6),diarrhea (1.8±0.5),salivation (2.8±0.9),weight loss (3.7±0.6),total withdrawal score (23.1± 1.3) and score of withdrawal-induced allodynia (3.5± 1.1) of group D were significantly increased (P＜0.05).Compared with group C,teeth chatting (3.1±0.5),wet dog shacks (1.5±0.4),jump (2.2±0.5),diarrhea (1.8±0.5),weigbt loss (3.7±0.6) and total withdirawal score (23.1±1.3),score of withdrawal-induced allodynia (3.5±1.1) of group D were significantly decreased (P＜0.05).But there was not significant change in abnoral position (7.9±1.6) and salivation (2.8±0.9).Conclusion Inhibition of the activation of spinal cord ERK5 can significantly alleviate withdrawal symptoms of morphine dependent rats by intrathecal injection BIX02188.

Objective To explore the characteristics of visual P300 event-related potentials (ERP) in children with mental retardation and evaluate the correlations between visual P300 in event-related potentials and intelligent quotient.Methods Thirty children with mental retardation were selected as the test group who were inpatients or saw a doctor in the Department of Rehabilitation of Hunan Children Hospital.At the same time,thirty normal children were selected as the control group who saw a doctor in the Department of Child Healthcare of Hunan Children Hospital.Two groups had no statistically significant difference in sex and age (P ＞ 0.05) and were comparable.All children were administered with the Wechsler intelligence test in the Department of Child Healthcare and the visual event-related potential test in the Department of Rehabilitation.The results of the visual P300 latency and amplitude were analyzed.Another,the relevance between intelligent quotient (IQ) and P300 latency and amplitude were also compared by statistics.Results Compared to the control group,the visual P300 latency in children with mental retardation (MR) was apparently longer and the amplitude decreased significantly in children with MR,with a statistically significant difference between two groups(P ＜0.05).P300 latency in MR expected negative correlation with intelligent quotient and the amplitude in MR expected no correlation with intelligent quotient.Conclusions P300 latency and amplitude of ERP could objectively reflect cognitive function in children with MR,could be regarded as one of the objective measurement in the evaluation of cognitive function in children with MR.It can be used as an objective electrophysiological index for assisting in the diagnosis of mental retardation of children in clinic.

Objective To investigate the roles of spinal N-methyl-D-aspartic acid receptor-extracellular signal-regulated protein kinases 5 signaling pathway in naloxone-induced withdrawal response in morphine-dependent rats.Methods Ninety-six adult male SD rats weighting 230-250 g were randomly divided into 4 groups:control group,withdrawal group,DMSO group and MK801 group.Rats were subcutaneously injected with morphine.On day 6,rats were injected with naloxone (intraperitoneal) to precipitate morphine withdrawal syndromes.To identify the function of NMDAR-ERK5 signaling pathway in morphine withdrawal,morphine withdrawal-like behavior test and western blot technique were used in this research.The scores of morphine withdrawal symptom,morphine withdrawal-induced allodynia and the activation of ERK5 in spinal cord were observed after intrathecal injection of MK801.Results There was no withdrawal symptoms and withdrawal-induced allodynia in group A after intraperitoneal injection of naloxone.Compared with group A,withdrawal score (45.2±7.3),score of withdrawal-induced allodynia (14.4±3.7) of group B,withdrawal score (44.7±6.2),score of withdrawal-induced allodynia (13.2±2.7) of group C and withdrawal score (28.3±1.6),score of withdrawal-induced allodynia (5.9± 1.1) of group D were significantly increased (P＜ 0.05).Compared with group C,the total withdrawal score (28.3 ± 1.6),score of withdrawal-induced allodynia (5.9± 1.1) of group D were significantly decreased (P＜0.05).Compared with group A,the expression of spinal p-ERK5 of group B (12848±621) and group C (12579±396) were significantly increased (P＜0.05).Compared with group C,the expression of spinal p-ERK5 of group D (5 123±546) was significantly decreased (P＜0.05).Condusion The signaling pathway of spinal N-methyl-D-aspartic acid receptor-extracellular signal-regulated protein kinases 5 contributes to naloxone-induced withdrawal response in morphine-dependent rats.