Objective To investigate the role of ERK signaling pathway in spinal cord in reduction of neuropathic pain (NP) by electro-acupuncture (EA) at Zusanli and Yanglingquan.Methods Fifty male SpragueDawley rats,weighing 180-220 g,in which the intrathecal catheter was successfully placed without complications,were randomly divided into 5 groups (n =10 each):sham operation group (S group),chronic constrictive injury (CCI) group,acupuncture at acupoint group (EA group),acupuncture at non-acupoint group (NA-EA group),and ERK inhibitor U0126 group (U0126 group).NP was induced by CCI in groups CCI,EA,NA-EA and U0126.The animals were anesthetized with intraperitoneal chloral hydrate 300 mg/kg.The right sciatic nerve was exposed and 4 ligatures were placed on the sciatic nerve at 1 mm intervals.EA (intensity ＜ 1.5 mA,frequency 2Hz) of Zusanli and Yanglingquan lasting 30 min was performed once a day for 6 days starting from 4th day after induction of NP in group EA.EA was performed at the points 5 mm lateral to the acupoints of Zusanli and Yanglingquan on the operated side in group NA-EA.Intrathecal U0126 5 μg was started on 4th day after induction of NP twice a day for 6 consecutive days.The mechanical withdrawal threshold (MWT) and thermal withdrawal latency (TWL) were measured at 1 day before CCI (T0,baseline) and at days 3,5,7 and 9 after CCI (T1-4).The rats were sacrificed on 10th day after induction of NP and the right lumbar segment (L4-6) of the spinal cord was removed for determination of the expression of P2X3 receptor protein and mRNA,ERK1/2 and phosphorylated ERK1/2 (p-ERK1/2) in the spinal cord dorsal horn.Results Compared with group S,MWT was significantly decreased,TWL was significantly shortened,the expression of P2X3 receptor protein and mRNA,and p-ERK1/2 was up-regulated in the other 4 groups (P ＜ 0.01).Compared with CCI group,MWT was significantly increased,TWL was significantly prolenged,the expression of P2X3 receptor protein and mRNA,and p-ERK1/2 was downregulated in EA and U0126 groups (P ＜ 0.01),and no significant change in the parameters mentioned above was found in NA-EA group (P ＞ 0.05).Compared with EA group,MWT was significantly increased,TWL was significantly prolonged,the expression of P2X3 receptor protein and mRNA,and p-ERK1/2 was down-regulated in U0126 group (P ＜ 0.01).Conclusion ERK signaling pathway in spinal cord is involved in reduction of NP by EA at Zusanli and Yanglingquan.

Objective To evaluate the feasibility and safety of transjugular liver biopsy (TJLB) by using LABS 100 liver access and biopsy set (Cook Inc, bloomington, IN, USA). Methods During the period from June 2014 to Sep. 2014, a total of twelve patients received TJLB at authors’ hospital. The clinical data were retrospectively analyzed, and the indications, number of puncturing times, technical success rate, complications, sufficient amount of specimen, etc. were summarized. Results Technical success of TJLB was achieved in all patients, and no procedure- related complications occurred. The mean number of puncturing was 2.8 times, and sufficient amount of specimen for histological examination was obtained in all cases. Conclusion This preliminary result indicates that transjugular liver biopsy with the use of LABS 100 liver access and biopsy set is clinically safe and feasible.

Objective To investigate the effectiveness of hyperthermia of different degrees in killing tumor cells and its influence on Na+ -K+ -ATPase activities in erythrocytes. Methods Cultured low differentiated stomach gland tumor cells (SGC-170) and large intestine gland tumor cells (LOVO) (1?106?ml-1 each) were mixed with concentrated RBCs respectively and incubated in warm bath of 37℃ , 42℃, 43℃ , 45℃ or 47℃ for 40 min respectively. After hyperthermic treatment tumor cells were isolated from RBCs using density gradient centrifugation and the live tumor cells were counted by typan staining. The isolated tumor cells were then cultured and the clone formation of tumor cells was checked. The cultured tumor cells were marked with 5-bromo deoxyuridine and DNA metabolism was examined. The Na+ -K+ -ATPase activities in RBC after hyperthermic treatment were also determined. Results The amount of tumor cells was significantly decreased by 40 min hyperthermic treatment in a temperature-dependent manner from 42-471 as compared with the control group (37℃) (P

Objective:To develop a new method of manufacture of presurgical nasal stent by computer-aided design and manufactur-ing(CAD/CAM)technique for infants with cleft palate and nasal deformity.Methods:A neonate with unilateral lip and palate cleft and nasal deformity was recruited.The nose-lip area was scanned by a 3D human body scanner and transformed into 3D digital model by the reverse engineering software.The nasal data of the normal side was mirrored to cover the deformed side and processed by the re-verse engineering software,which became the original data of the presurgical nasal stent.Nasal stent was manufactured by rapid proto-typing machine.The stent was applied for the patient to correct the nasal deformity.Results:The original data of the nose-lip area were obtained via scanning within 0.1 second,and the 3D model was reconstructed by the reverse engineering software.The nasal stent made by CAD/CAMtechnique matched perfectly with the models and fitted well when tried on the patient's face.The appearance of the deformed nose was obviously improved by the nasal stent.Conclusion:CAD/CAMtechnologies can be used in the design and manu-facture of individual nasal stent for infants with cleft palate and nasal deformity.

Objective To explore the relationship between the stress during pregnancy and the NMDA-induced spasm. MethodsThe pregnant rats were divided into two groups: pregnant control group(PC group)and pregnatal stress group(PS group). The rats in PS group were forced to swim in cold water of 4℃ for five minutes. Pups of the two groups were injected NMDA 7mg/kg intraperitoneally on postnatal day 13 to induced infantile spasm-like attacks. Then the clinical behavior of pups of the two groups were observed and recorded. The ultrastructure of mitochondria was detected with scanning electron and appearance of neurons was observed with HE staining. NMDA receptor and its subuniforms (NR2A, NR2B) in hippocampus, cerebral cortex, hypothalamus and raphe nucleus of brainstem were estimated by immunohistochemistry. Results The average score of pups in PS group is higher than in PC group(7.84 ±1.01 vs 5.90 ± 1.12). There were swelling neurons and no cytonecrosis in hippocampuss of both two groups. The uhrastructure of mitochondria in hippocampuss and raphe nucleus of brainstem showed great changes in pups of PS group as membrane in mitochondria of pups in PS group. NR1, NR2A and NR2B distributed mainly on the membrane and also in cytoplasm and cellular nucleus. The NR1 expressions in hippocampus, cerebral cortex, hypothalamus and raphe nucleus in pups of PS group were elevated than those of PC group and the P value is 0.001, 0.009, 0.015, 0.001 respectively. The NR2B expressions in hippocampus, cerebral cortex hypothalamus and raphe nucleus in pups of PS group were elevated than those of PC group and the P value is 0.004, 0.002, 0.003, 0.002 separately. NR2A expressed more in hippocampus in pups of PS group than that in PC group,but there was no difference in cerebral cortex, hypothalamus and raphe nucleus between two groups and the P value is separately 0.006,0.067, 0.7, 0.5. Conclusions The mitochondria of neurons in rat pup were hurt by maternal severe stress daring pregnancy, which made the energy metabolism of neurons changed. Maternal stress can also elevate the expression of NR1, NR2A and NR2B in cerebral cortex, brainstem and hippocampus and increase the morbidity of infantile spasm-like attacks.

Objective To investigate the effect of dexmedetomidine on emergence agitation (EA) following sevoflurane anesthesia in children with cerebral palsy.Methods Fifty ASA physical status Ⅰ or Ⅱ children with cerebral palsy of both sexes,aged 2-12 yr,scheduled for elective muscle strength muscle tension adjustment method,were randomly allocated into 2 groups (n =25 each):control group (group C) and dexmedetomidine group (group D).Anesthesia was induced with iv injection of sufentanil 0.3 μg/kg,cisatracurium 0.15 mg/kg,and propofol 1.5 mg/kg.The patients were tracheal intubated and mechanically ventilated.Dexmedetomidine 0.5 μg/kg was intravenously infused over 15 min after induction of anesthesia in group D and the equal volume of normal saline was given in group C.The operation was begun at the end of administration.Anesthesia was maintained with inhalation of 2％-4％ sevoflurane and the concentration was adjusted to achieve a target BIS value of 45-60.The heart rate,systolic blood pressure and diastolic blood pressure were recorded before infusion of dexmedetomidine (T1) and at skin incision (T2).The extubation time,emergence time and consumption of sevoflurane were also recorded.The end-tidal sevoflurane concentration was recorded at T1,T2,and the end of operation (T3).The adverse cardiovascular events and occurrence of EA were also recorded.The degree of EA was assessed using the Pediatric Anesthesia Emergence Delirium (PAED) scale.The peripheral venous blood samples were collected at T1,T2,T3 and extubation (T4) for determination of the blood glucose level and serum cortisol concentration.Compared with group C,the emergence time and extubation time were significantly shortened,and the consumption of sevoflurane,end-tidal sevoflurane concentrations at T2 and T3,PAED scores,incidence of agitation,and the blood glucose level and serum cortisol concentration at T4 were significantly decreased in group D (P ＜0.05 or 0.01).There was no significant difference in the incidence of bradycardia or heart rate,systolic blood pressure and diastolic blood pressure at each time point between the two groups (P ＞ 0.05).Conclusion Dexmedetomidine can decrease the development and degree of EA following sevoflurane anesthesia in children with cerebral palsy.

Objective: Combined detection of anti-mutated citrullinated vimentin ( anti-MCV ) antibodies, anti-cyclic citrullinated peptide ( anti-CCP) antibodies and rheumatoid factor ( RF-IgM) levels to investigate the diagnostic value of anti-mutated citrullinated vimentin (anti-MCV) antibodies for rheumatoid arthritis(RA).Methods: A total of 359 patients with RA,128 patients with other rheumatic diseases and 90 healthy controls were involved.Enzyme linked immunosorbent assay ( ELISA) was used to detect anti-MCV and anti-CCP, and dynamic immune nephelometry was applied to detect RF-IgM .The sensitivity and specificity were obtained from the experimental data.Results:The sensitivities of anti-MCV,anti-CCP and RF-IgM were 85.1%,76.7% and 82.7%in RA respectively.The specificities were 93.2%,95.1%and 80.1%respectively.Combined detection of anti-MCV and anti-CCP,the sensitivity decreased to 70.2%; but the specificity increased to 98.7%.The sensitivity reached to 89.5% with specificity 97.6%when the union of anti-MCV and anti-CCP positivity was used as criterion.Conclusion:Anti-MCV and anti-CCP are novel makers for RA diagnosis with high sensitivity and high specificity.Combination of anti-MCV and anti-CCP is more helpful for RA diagnosis.

Traditional Chinese medicine (TCM) cultural tourism, with the trait of health and unique features, is based on rich resources of medicine and profound TCM culture. TCM cultural tourism focuses on making tourists get TCM knowledge and enjoy TCM tourism activities. Mawangdui Han Dynasty Tomb, a key scenic spot to develop TCM cultural tourism in Changsha, has advantages of high TCM cultural value with a good geographical position, and superior geographic and tourist viewing conditions. It has a great value in TCM cultural tourism.

Purpose Liver fibrosis is the common pathological process of cirrhosis developed by chronic liver disease.This study aims to explore the application of microvascular change in assessing the liver fibrosis induced by bile duct ligation based on X-ray phasecontrast computed tomography (PCCT).Materials and Methods Ten rats were equally divided into the group of bile duct ligation-induced liver fibrosis and the control group at random.Then ten excised liver tissues were imaged at beamline BL13W1 of Shanghai Synchrotron Radiation Facility in China.After the imaging studies,the liver samples were stained with Sirius red and immunostained with antibodies against cytokeratin 19 (CK19).The microvasculature in livers was reconstructed via PCCT,and the correlation analysis on microvascular density and the proportion of fibrosis area was performed.Results The microvasculature including blood vessels,dilated bile ducts and ductular proliferation were clearly revealed by PCCT technology.Moreover,the 3D microvascular density and proportion of fibrosis area in the liver fibrosis group increased significantly compared with those in the control group (P＜0.01),and the correlation between them was obvious (r=0.812,P＜0.01).Conclusion Microvascular 3D characteristics of liver fibrosis are well demonstrated by PCCT,and 3D microvascular density is significantly correlated with the proportion of fibrosis area.Those findings indicate that microvascular change is closely related to the degree of liver fibrosis induced by bile duct ligation,and thus it provides a novel means to assess the severity of liver fibrosis through microvascular change.

Objective To study the clinical course and clinicopathological features of para-aortic lymph node metastases in patients with gallbladder cancer.Methods Forty-two patients with gallbladder cancer who underwent radical resection combined with para-aortic lymphadenectomy at the Mianyang Hospital of Traditional Chinese Medicine from January 2001 to December 2013 were retrospectively studied.The survival rates of the para-aortic lymph node metastasis group were compared with the negative para-aortic lymph node group of patients.Para-aortic lymph node metastasis as well as clinical features were correlated with survival.Results No one died within the perioperative period.The total complication rate was 24.0％,and there was no significant difference between the positive para-aortic lymph node group and the negative group (P ＞0.05).The rate of para-aortic lymph node metastasis on histopathology was 21.4％ (9/42),which was positively correlated with tumor depth of invasion and negatively correlated with the degree of differentiation (P ＜ 0.01).The 1-,2-,and 3-year survival rates of the positive para-aortic lymph node group were significantly inferior to the negative group (P ＜ 0.05).Conclusions Dissection of para-aortic lymph nodes in patients with gallbladder cancer was safe and feasible.Lymphadenectomy did not improve the longterm survival rates of patients with para-aortic lymph node involvement metastases.The extent of lymph node dissection for gallbladder cancer should be decided by intraoperative biopsy.