Objective To investigate the therapeutic potential of brain-derived neurotrophic factor (BDNF) and Schwann cells(SCs) in experimental autoimmune neuritis (EAN) and assess the effect and mechanism.Methods EAN model was established by immunization of Lewis rats with 400 μg of specific peptide P2(57-81)and complete Freund adjuvant.In the therapy group,the SCs (n =28) and the combination of BDNF administration and SCs (n =48) were labeled by the nuclear fluorescent dye injected into the intracerebroventricularly in 14 d after immunization.Transplanted cell migration tracking respectively were at 25,35 and 45 days after immunization.The rats were observed for signs of disease daily and subjected to clinical score,of which the sciatic nerves were subjected to histopathological examination (hematoxylin eosinstaining,luxol-fast-green and immunohistochemical staining).The inflammatory cell infiltration and demyelination were assessed,and the CD4,CD8,CD68,S-100 and nerve growth factor (NGF) positive cells numbers were compared among the 3 different groups.Results AIl the rats had the neurological deficits.Compared with control group,there were no significant differences in SCs therapy group.In SCs + BDNF therapy group,the recovery of paralytic symptom was faster and the score was lower after immunization 45 d.After immunization 25 and 35 days,both the inflammatory cells infiltration (EAN model group:325.8 ±10.8,221.4 ± 35.2;SCs + BDNF transplantation group:307.3 ±4.6,197.2 ± 16.8; t =2.172,P =0.031 ;t=3.756,P=0.000) and the expression of CD4+,CD8+ T cells and CD68+ macrophages were reduced.After immunization 35,45 days,the demyelination degree (EAN model group:3.4 ± 0.5,2.9 ± 0.8 ; SCs +BDNF transplantation group:2.9 ±0.8,2.3 ±0.5) was reduced (t =-7.408,P =0.000;t =-6.092,P =0.000),the expression of S-100 is higher,and NGF was lower than the control group in each time point after immunization.Conclusions SCs transplanted into the cerebellar ventricle of animals can migrate into the sciatic nerve.The combination of BDNF administration and SCs transplantation may represent an effective strategy by reducing inflammation reaction,improving the expression of S-100 in the donor cell,and reducing NGF irritability heighten in sciatic nerve.However,delivery of SCs alone is inefficiency to the treatment of EAN.

OBJECIVE:To study the preparation technology of Psoralea corylifolia-Juglans regia tincture.METHODS: Taking Psoralea corylifolia and Juglans regia as raw material,which were extracted respectively with ethanol and mixed after having been condensed,then added with surface-active agent to prepare the compound preparation Psoralea corylifolia-Juglans regia tincture.RESULTS: The tincture was bright and uniformly sable in color.CONCLUSION: The preformulation and the preparation technology are both reasonable and the tincture is stable in quality.

Objective To explore the curative effect of extracorporeal lipoprotein filter from plasma Delipid Plus(DELP) system therapy on acute cerebral infarction(ACI). Methods 36 patients with ACI were divided into DELP group (12 cases) and control group (24 cases). All of them received basic treatment including Aspirin and Pravastatin sodium etc. The DELP group also treated by DELP therapy twice. The scores of National Institute of Health Stroke Scale (NIHSS),Barthel Index (BI) and Modified Rankin Scale (mRS),and the levels of plasma fibrinogen (Fib),blood lipid and the indexes of hemorheology were compared pre and post treatment in the two groups.Results The reduction value of NIHSS between pre and post treatment in DELP group was bigger than this in control group(P

Objective To investigate the effects of cannabinoid 1 receptor (CB1R) on regulating visceral sensitivity in rats with acute partial restraint stress. Methods Thirty Sprague-Dawley rats were divided into blank control (sham stress), acute stress and CB1R groups with 10 each. The frequency of discharge of electromyogram (EMG) was recorded at the 1st, 2nd, 5th and 8th day to evaluate the visceral sensitivity to colorectal distension (CRD) in rats. The expression of the CB1R mRNA was determined by means of RT-PCR at day 8. Results There was no significant difference in baseline discharge frequency among three groups at the 1st day. But the discharge frequencies corresponding to CRD at 40,60,80 mm Hg at the 2nd day were significantly lower in CB1R group [(22.37±1.49)/min, (42.24±3.03)/min and (69.09±5.54)/min, respectively] than in acute stress group [(39.71±1.84)/min, (84.45±8.85)/min and (112.56±11.66)/min, respectively, P<0.05)]. The discharge frequencies corresponding to CRD at 40, 60,80 mm Hg in acute stress group [(104.12±6.77)/min, (158.07±18.68)/min, (193.58±25.69)/min,respectively] showed a significant elevation at the 5th day in comparison with blank control group[(36.33±5.42)/min, (74.07±8.25)/min, (102.94±7.95)/min, respectively, P<0.05] or CB1R group [(74.66±6.44)/min,(140.10±4.68)/min and (160.39±5.60)/min,respectively, P<0.05]. However, at the 8th day after stress, there was no significant difference in discharge frequency among three groups. The expressions of CB1R mRNA in ileocecal junction, proximal colonic and distal colonic tissues were significantly higher in acute stress group (2.53±0.52, 2.29±0.42, 2.54±0.29 respectively) than in blank control group(0.56±0.15, 0. 73±0.12, 0.82±0.09, respectively, P<0.05). There was no effect of CB1R agonist on CB1R mRNA expression in rats. Conclusion The visceral sensitivity in rats induced by stress can trigger the accommodation of endogenous cannabinoid system that plays an important role in modulation of visceral sensitivity.

Objective To investigate the role of synaptic plasticity on the formation of visceral hypersensitivity induced by transient intestinal infection in rats. Methods Thirty male Sprague-Dawley rats were divided into normal control, acute infection and chronic infection groups with 10 each. The area under curve (AUC) of electromyography (EMG) in 10 s was used to evaluate the visceral sensitivity induced by different eolorectal distention (20,40,60 and 80 mmHg). Histological change of the colon was evaluated by H-E staining. Synaptic uhrastrueture such as synaptic cleft and synaptic vesicles was observed using transmission electron mieroseope. The mRNA and protein expressions of synaptophysin and postsynaptic density protein-95 (PSD-95) were examined by RT-PCR and Western blot, respectively. significantly higher than those of normal controls(P=0. 012, 0. 005, respectively ). In contrast, AUC of acute infection were significantly lower than those of normal controls ( P = 0. 018,0. 012, respectively ). Under the distention of 20 and 80 mmHg, no significant difference was observed among three groups (P= rats compared to normal controls(23.45±4.10 vs. 9.10±2.42, P=0. 027),but there was no statistical difference between chronic infection rats and normal controls (13. 95±7.96 vs. 9.15±2.42, P=0.78). increased. In acute infection rats, mitochondria cristae disappeared, synaptic vesicles and the length of controls, mRNA and protein of synaptophysin in ileocecum, proximal colon and distal colon were significantly increased in chronic infection rats (P＜0. 05 ), but decreased in acute infection rats with no significant difference. Compared with controls, no significant downregulation was noted in the expression protein expressions of PSD-95 were both increased in chronic infection rats (P＜0.05), and decreased in acute infection rats (P＜0.05). Conclusion Synaptic plasticity plays an important role in the formation of visceral hypersensitivity induced by transient intestinal infection in rats.

Objective To investigate the role of N-methyl-D-aspartate receptor one(NMDA-R1 )in visceral hypersensitivity forming of Sprague-Dawley rat model induced by transient Trichinella spiralis intestinal infection.Methods Forty male Sprague-Dawley rats were divided into healthy control group,visceral hypersensitivity group,0.9％ NaCl group and MK-801 group.The rats in visceral hypersensitivity group,0.9％NaCl group and MK-801 group were given Trichinella spiralis to establish infection model.After eight weeks,the rats in 0.9％NaCl group and MK-801 group were given 0.9 ％ NaCl and MK-801 respectively.The abdominal muscular electrical activity of each group was observed under 20,40,60 and 80 mm Hg (1 mm Hg=0.133 kPa) colorectal distension pressure.After abdominal muscular electrical activity recorded,rats were sacrificed and the colon specimens were collected.The expression of NMDA-R1 at protein level was detected by Western blot.The data were analyzed by LSD test and Bivariate correlation.Results There was significant correlation between areas under curve (AUC) of abdominal muscular electrical activity electromyography and distension pressure in healthy control group,visceral hypersensitivity group,0.9％ NaCl group and MK-801 group (r=0.823,0.618,0.913,0.889 respectively,all P＜0.01).Under 20,40,60,80 mm Hg distension pressure,there was significant difference in AUC between MK-801 group and visceral hypersensitivity group (LSD test,all P＜0.05).The AUC of MK-801 group was lower than that of healthy control group,but there was significant difference (LSD test,P =0.029) only when distension pressure was at 80 mm Hg.The integral optical density value of NMDA-R1 protein of MK-801 group (1.238 ±0.210) was significantly lower than that of visceral hypersensitivity group (2.231±0.450) and 0.9％NaCl group (2.104±0.220) (LSD teat,P=0.025,0.046).The JA value of NMDA-R1 protein of visceral hypersensitivity group and 0.9％NaCl group was significantly higher than that of healthy control group (LSD test,P =0.007,0.014).Conclusion The visceral hypersensitivity forming was correlated with the high expression of NMDA-R1,and it could be adjusted by inhibiting NMDA-R1 expression in enteric nervous system.

It has been confirmed clearly that gastric bypass operation could be used for tbe treatment of type 2 diabetes mellitus.However,the curative mechanism underlying this therapy remain unclear up to now.Referencing the curative mechanisms research progress from domestic and abroad,the possible mechanism is considered as the secretion of gastrointestinal hormones can be changed after gastric by~ss operation,which has altered the normal anatomy structure of the gastrointestinal,and so as to the situation of type 2 diabetes mellitus can be controlled.This review will summarize recent papers related to mechanism research about the gastric bypass operatiou for the treatment of type 2 diabetes mellitus.

It has been reported that celastrus orbiculatus has anti-cancer activities. The mechanism mainly lies in its functions of inhibiting tumor cell proliferation, inducing tumor cell apoptosis, repressing tumor angiogenesis, and reversing tumor multidrug resistance, etc. To study the material basis of its anti-cancer pharmacodynamics and the mechanism of tumor inhibition has significant meanings and a wide application perspective.

Objective:To optimize the base formula of boric acid cream,and investigate its quality. Methods:Using central composite design-response surface methodology,with the viscosity of cream as the index,the amounts of Cremophor A6,Cremophor A25,cetyl alcohol,stearyl alcohol,isooctadecyl isooctadecanoate,jojoba oil and light liquid paraffin were optimized. The appearance characteristics,particle size,viscosity and stability of the preparation and the content of boric acid were studied. Results:The optimal conditions were as follows:50 g Cremophor A6-Cremophor A25(3 ∶2),65 g cetyl alcohol-stearyl alcohol(3∶7),and 125 g isooctadecyl isooctadecanoate-jojoba oil- light liquid paraffin(5 ∶3 ∶2). According to the optimal formula,the cream showed the property of semi-fluid cream,the content of boric acid was 98. 5% of the labeling amount,and the viscosity was about 1. 64 × 104 mPa·s. The predicted value was equivalent to the measured one,and the stability of the preparation was promising. Conclusion:The central composite design-response surface methodology used in the base optimization of boric acid cream is simple with high precision and good predictability,and the quality of the preparation is stable and controllable.

Objective To determine the changes in the prevalence of type 2 diabetes mellitus and prediabetes in residents aged over 20 years in Shandong coastal areas during years 2004-2014. Methods A random stratified cluster sampling was conducted, and 3 944 inhabitants were investigated in Qingdao, Yantai, Weihai, and Rizhao regions. Results (1)The standardized rate of diabetes mellitus prevalence was 10.36% in 2014, increased by 2.38% as compared with 2004 and 0.85% as compared with 2009 (P<0.05). There were 341 newly diagnosed diabetes mellitus patients, accounting for 57.4% of the diabetes mellitus patients, increased by 6.09% as compared with 2004 and decreased by 4.11% as compared with 2009 (P<0.05). The standardized rate of prediabetes was 12.47% in 2014, increased by 2.63% as compared with 2004 and 0.61% as compared with 2009 (P<0.05). (2) The prevalence of diabetes mellitus and impaired glucose regulation in individuals aged under 50 years in 2014 was significantly higher than that in 2004, but lower than that in 2009 (P<0.05). (3) Compared with 2004 and 2009, the levels of diastolic blood pressure, total cholesterol, low density lipoprotein-cholesterol (LDL-C), and high density lipoprotein-cholesterol in subjects with prediabetes and diabetes mellitus increased significantly in 2014 (all P<0.05). The levels of serum uric acid in subjects with prediabetes and diabetes mellitus decreased significantly in 2014 (P<0.05). (4) The logistic regression analysis showed that the age, body mass index, waist-hip ratio, triglyceride, LDL-C, systolic blood pressure, and diabetic family history were the risk factors for abnormal glucose regulation, while total cholesterol was the protective factor. Conclusions The prevalence of diabetes mellitus and prediabetes increased during 10 years (2004-2014), but the growth rate dropped precipitously during last five years as compared with the first five years. The age of diabetes mellitus onset is getting older in residents of Shandong coastal area, especially in females. Aging, overweight, hypertension, lipid disorders, and diabetic family history were the risk factors of diabetes mellitus.