Objective To study the absorption and transportation of flavonoids in Herb Epimedii by using Caco-2 monolayer model. Methods Caco-2 cell monolayer model was used to study the bi-direction transport of icariin, epimedin A, epimedin B, epimedin C, and baohuoside Ⅰ. The concentration of the five flavonoids in cell culture medium was measured by UPLC and the apparent permeability coefficients (Papp) were calculated. Results The absorptive permeability coefficients (PAB) of icariin, epimedin A, epimedin B, epimedin C, and baohuoside Ⅰ were 5.91?10-7, 3.22?10-7, 2.76?10-7, 4.23?10-7, and 1.46?10-6 cm/s, respectively. Except baohuoside Ⅰ, the other four flavonodes had lower permeabilities, and the secretive permeabilities (PBA) of all the flavonoids were larger than their absorptive permeabilities. Among them, the PBA of baohuoside Ⅰ was 9.8 times as much as the PAB. Conclusion The results suggest that the intestinal absorption of the five flavonoids is lower, which might have efflux mechanism by transporters, and the absorption of monloglycoside (e.g. baohuoside Ⅰ) is better than that of diglycoside (e.g. icariin) and triglycoside (e.g. epimedin A, epimedin B, and epimedin C).

This paper discusses the problems, clinical application and limitations of argon-helium cryosurgical scalpel and liquid nitrogen cryosurgical scalpel. The feasibility of self-absorption liquid-CO2 cryosurgical scalpel is analyzed. The result shows that self-absorption liquid-CO2 cryosurgical scalpel can be applied to cryosurgery.

Aim To study the effects of amitriptyline(Ami)on focal cerebral ischemia-reperfusion injury in rats.Methods An animal model of focal cerebral ischemia-reperfusion injury was induced by the middle cerebral artery occlusion(MCAO) by reversibly inserting a nylon thread method.The rats were decapitated after ischemia for 1 hour and reperfusion for 2 hours.The infarct volumes were determined using a 2,3,5-tri-phenyl tetrazolium chloride(TTC) staining and assessed by image analysis system.The neurologic deficit status were evaluated on 0~5 grade scale.The levels of dopamine(DA),norepinephrine(NE),serotonin(5-HT) and its metabolic product~hydroxyindole acetic acid(5-HIAA) in cortex and striatum were measured by fluoro-spectrophotometry.Results Ami treatment exhibited a remarkable reduction in infarct volume and neurologic deficit scores.The monoamines content of cortex and striatum had a significant increase compared with ischemia-reperfusion group.Conclusion Amitriptyline has protective effect on cerebral ischemia-reperfusion injury in rats.The mechanism might be related to reducing the release of NE,DA and 5-HT during cerebral ischemia-reperfusion,attenuating or inhibiting of the neurotoxic effects of monoamine neurotransmitters.

To investigate the absorption kinetics characteristics of icariin for various intestinal segments.Methods: To establish the situ intestinal perfusion model and to study the absorption of icariin for various intestinal segments.Results: Icariin was metabolized quickly in the four intestinal segments.The permeability coefficient(P*eff) were(4.27?0.28),(5.25?0.17),(1.99?0.09),(0.80?0.03) at duodenum,jejunum,ileum,colon,respectively.Icariside can be detected in the four intestine segments in rats by HPLC.Conclusion: Icariin is metabolized into icariside,and then icariside can be absorbed.

OBJECTIVETo explore the clinical effects of Dynesys system combined with posterior lumbar interbody fusion (PLIF) in treating multiple lumbar degenerative disease.

METHODSThe clinical data of 46 patients with multiple lumbar degenerative diseases treated by Dynesys system combined with PLIF from September 2010 to May 2013 were retrospectively analyzed. There were 17 males and 29 females, aged from 38 to 68 years old with an average of (56.38±11.63) years. Operation section was in L2-L5 of 16 patients (6 with fusion of L4,5 and 10 with fusion of L4,5,L5S1) and in L3-S1 of 30 patients (11 with fusion of L5S1 and 19 with fusion of L4,5,L5S1). Patients were followed up for three times: postoperative 3 months, 1 year and final follow-up. Visual analogue scale (VAS) and Oswestry Disability Index (ODI) were used to assess clinical symptoms preoperatively and postoperatively. All patients underwent flexion/extension radiographs examinations before surgery and at final follow-up. Range of motion (ROM) and disc height index (DHI) were recorded.

RESULTSAll patients were followed up from 16 to 48 months with the mean of (23.23±7.34) months. At third follow-up after operation, ODI and VAS of lumbago and leg pain were significant improved than that of preoperative (P<0.01). DHI of fusion segment was significantly increased than that of preoperative (P<0.05). There was no significant difference in adjacent non-fusion segment between preoperative and postoperative (P>0.05). Postoperative ROM of fusion and non-fusion segments were obviously decreased than that of preoperative. There was no significant difference in ROM of upper adjacent non-fusion segment between 3 months and 1 year after operation (P>0.05), but at final follow-up, the ROM was increased (P<0.05).

CONCLUSIONThe preliminary clinical results of the Dynesys system combined with PLIF in the treatment of multiple lumbar degenerative diseases are satisfactory. It can be determined in fusion or non-fusion according to the individual needs and can reserve the some intervertebral motion, prevent the early degeneration of adjacent segments. However, its long-term clinical efficacy should be verified with long time.

Humans ; Lumbar Vertebrae ; surgery ; Range of Motion, Articular ; Retrospective Studies ; Spinal Diseases ; physiopathology ; surgery ; Spinal Fusion ; methods ; Visual Analog Scale

Objective:To explore the clinical effect of mild hypothermia combined with puncture aspiration operation on the hypertensive intracerebral hemorrhage and its effect on the serum TNF-α,IL-6 and CRP levels.Methods:112 cases of patients with hypertensive intracerebral hemorrhage admitted in our hospital from February 2015 to August 2016 were selected as the research objectives and randomly divides into 2 groups with 56 cases in each group.Both groups were treated with minimally puncture aspiration,and mild hypothermia was performed in the observation group additionally,the clinical effect,complication,short-term prognosis,serum TNF-α,IL-6,CRP levels at different time points before and after operation were compared between two groups.Results:The overall effective rate of observation group was 92.86％,which was significantly higher than of the control group(76.79％.P＜0.05).The incidence of MODS and complications were 0％ and 26.79％ respectively,which were significantly lower than those of the control group(P＜0.05).The serum TNF-α,IL-6,CRP levels of observation group were significantly decreased on the 3rd and 7th day postoperation,which were significantly lower than those before operation (P＜0.01).The serum TNF-α,IL-6,CRP levels of control group on the 3rd day postoperation were similar to those before operation (P＞0.05),but the serum TNF-α,IL-6,CRP levels on the 7th day postoperation were significantly decreased (P＜0.01).The serum TNF-α,IL-6,CRP levels on the 3rd,7th day postoperation were significantly lower than those of the control group at same time points (P＜0.01).The favorable prognosis of observation group was 80.36％,which was significantly higher than that of the control group (62.50％,P＜0.05).Conclusion:Mild hypothermia combined with puncture aspiration operation could effectively reduce the neurological deficits,inhibit the inflammatory response and decrease the mortality.

Objective To describe the sonographic appearance of mesenchymal hamartoma of the liver(MHL)and to analyze the diagnostic value of ultrasound.Methods Eleven surgically and pathologically confirmed cases of MHL from January 2005 to May 2011 in the Beijing Children′s Hospital were retrospectively reviewed.Results Ultrasound examinations showed 9 cystic hamartomas,including 7 multiseptate cystic and 2 monocystic lesions.Of the 7 multiseptate cystic hamartomas,4 had a honeycomb appearance and 3 had irregularly-distributed multiple cysts with varied septations.Of the 2 monocystic hamartomas,1 had a large cystic portion while the other was mainly solid with approximately 4% cystic portion of the tumor.Two cases in this group were solid,presenting with a well-defined homogenous mass.Conclusions Ultrasonography is an effective imaging modality for the diagnosis for MHL.A mixed or a mainly-cystic liver mass found in a child less than 2 years old should be suspicious for MHL.

Objective To evaluate the value of IL-17 and IL-23 expression in response prediction of infliximab treatment in Crohn's disease (CD).Methods A total of 23 CD patients were enrolled in this study including 19 males and 4 females.Another 17 patients with colonic polyps were recruited as control group.The tissue expression of IL-17 and IL-23 in intestinal mucosa was measured by immunohistochemistry (IHC).In each specimen, IL-17 or IL-23 positive cells were counted and recorded in 10 random high power fields (HPFs).Results Infliximab was effective in sixteen patients (69.6％), while 7 patients (30.4％) did not response.The numbers of IL-17 or IL-23 positive cells were much more in responders than those in nonresponders.The median numbers of IL-17 positive cells were 26.7 (18.0, 38.6)/HPF in responders, 11.8 (7.0, 14.0)/HPF in nonresponders, 3.0 (2.0,4.0)/HPF in controls (P =0.004).The median numbers of IL-23 positive cells were 74.5(44.8, 128.6)/HPF in responders, 22.4(19.0, 38.8)/HPF in nonresponders, 3.0(2.0, 4.0)/HPF in controls (P =0.018).IL-17 or IL-23 positive mucosal cells were significantly decreased after infliximab treatment.Conclusion High expression of IL-17 and IL-23 in mucosa may predict the response to infliximab in CD patients.

BACKGROUND:The chitin medical wound dressing can relieve the wound pain, bleeding, and promote wound healing. It has good biocompatibility and antibacterial properties. With the good permeability and natural
degradation in the body, it can be used clinicaly as a good biological wound dressing.
OBJECTIVE: To evaluate the clinical outcome of the chitin medical wound dressing paste and routine dressings used in changing the dressing and medication.
METHODS:We retrospectively studied 60 patients undergoing wound-treatment. They were divided into two
groups: chitin medical wound dressing paste group and routine dressing group. Each group had 30 patients. We recorded wound healing rate, detection rate of bacteria, visual analog scale score, healing time and cost of
treatment at 3, 7, 14 days after treatment.
RESULTS AND CONCLUSION: The wound healing rate, detection rate of bacteria, visual analog scale score, healing time of the chitin medical wound dressing paste group were better than those of the routine dressing change medicine group (P < 0.05). But there was no difference in the cost of treatment between the two groups. Therefore, we can made the conclusion that the chitin medical wound dressing paste used in changing the
dressing and medication can promote wound healing, reduce the antibacterial infection rate, and obtain better treatment satisfaction.

This article brought forward the adverse vocational education model-organizing lower level of undergraduates to participate in the work of public health specialty. This model enhanced their understanding of this work and urged more students to devote themselves in this area. Besides, questionnaires were used to know how alumni performed and what was needed for a future professional of public health.