[Objective]To initially approach the role of lumbar facet joint derived inflammatory factors in degenerative lumbar spinal canal stenosis. [Methods]Totally 75 cases of degenerative lumbar spinal canal stenosis(LSCS)(n=41)and lumbar intervertebral disc herniation(LDH)(n=34) undergoing posterior lumbar spinal surgery in our department were evaluated in terms of the extent of degenerative arthrosis according to the Weishaup grading criteria.The grading of backleg pain,melosalgia and functional impairment were recorded.The excised lumbar facet joints were collected as species.The content of interleukin-1? and tumor necrosis factor-? in the species were determined by ELISA.[Results]There was no TNF-? detected in both of the two groups.More IL-1? was detected in degenerative lumbar spinal canal stenosis group than that in lumbar intervertebral disc herniation group.It was demonstrated that the content of IL-1? in the species increased as the degeneration of lumbar facet joint sharpened.IL-1?-positive cases in degenerative lumbar spinal canal stenosis group showed higher grading of backleg pain,melosalgia and functional impairment.[Conclusion]The cartilage of degenerative lumbar spinal canal produced more IL-1?.Lumbar facet joint derived inflammatory factors might be one of the reasons that cause backleg pain and melosalgia and functional impairment in degenerative lumbar spinal canal stenosis patients.

Objective To compare the various partial Fourier reconstruction algorithms in MRI image processing and their advantages and disadvantages for improving algorithm .Methods Based on the conjugate symmetry in k‐space data in the partial Fourier reconstruction algorithm theory ,the 1 .5T medical magnetic resonance equipment was utilized ,the k‐space data were collect‐ed ,in reconstruction ,only 55% -80% of full data were utilized to simulate the partial collection pattern and reconstruct the images by using the several algorithms of zero filling ,conjugate synthesis ,Homodyne detection and POCS .Results The results presented that the ringing artifact was most obvious in the conjugate filling pattern and the POCS algorithm had the best effect for eliminating the ringing artifact .Conclusion The POCS algorithm repeatedly uses the weighted iteration with low frequency phase positions , which eliminates artifact ,meanwhile causes the lose of high frequency image details ,moreover the time consuming is longer ;the Ho‐modyne algorithm can keep a good balance between maintaining the image details and diminishing ringing .If the Sinc function serves as a weighting function for conducting phase unwrapping ,the image quality may be further improved .

Objective To provide an index system and model for evaluating the development strategies of military preventive medicine (MPM).Methods SWOT was used to analyze the internal and external conditions of the development strategies of MPM,and the evaluation index system was constructed.The weight of each evaluation index was determined based on the analytic hierarchy process (AHP) and expert consultation.The evaluation model of MPM development strategies and confrontation matrix were constructed based on SWOT analysis.The effectiveness of the index system and model was evaluated through empirical research.Results The evaluation index system was constructed,which included four grade-one indexes (R&D quality,difficulty,requirement and support) and sixteen grade-two indexes (research level,academic status,etc.).The advantage and disadvantage models,opportunity threat model and SWOT evaluation model were established.The confrontation matrix of development strategies for MPM was developed.Conclusion This evaluation index system and model can accurately evaluate MPM development strategies and provide reference for formulating development strategies of MPM.

Objective To observe the effects of infrasound(IS)of different frequencies and intensities on the pathological morphology of the gastric mucosa(GM)in rats.Methods One hundred and forty male Sprague- Dawley rats were randomly and evenly divided into a control group(group A),an 8 Hz 90 dB group(group B),an 8 Hz 130 dB group(group C)and a 16 Hz 130 dB group(group D).IS with these frequencies and intensities was administered daily for 2 h to all groups except group A,which received sham infrasound.The other 70 rats were ran- domly and evenly divided into a second control group(group E)and an exposure group(group F),in which the rats were continuously stimulated by IS at 8 Hz and 130 dB for 2 h a day for 14 d.The pathological morphology of the GM in each group was observed at 1 d,7 d,14 d,21 d and 28 d after IS exposure.Results①Compared with group A,GM lesion scores were significantly increased in groups B,C and D at 1 d,7 d,14 d,21 d and 28 d(P＜0.01),but not in group B at 1 d.②Compared with group B,the GM lesion scores in group C were obviously in- creased at 1 d,7 d,14 d,21 d and 28 d,while scores were also obviously improved in group C in comparison with those in group D at 14 d,21 d and 28 d(P＜0.01).③The GM lesion scores in group F decreased gradually after IS,but were still higher than those in group E at 1 d,7 d,14 d,21 d and 28 d after IS.④The ultrastructures of the chondrosome and endocytoplasmic reticulum in GM cells were deformed after 8 Hz and 16 Hz IS.Conclusion 8 Hz 90 dB,8 Hz 130 dB and 16 Hz 130 dB IS can all result in GM damage in rats.The injury severity was closely related to the frequency,intensity and duration of the IS.Rats can adapt to IS after several exposures,and the damage tends to recover automatically.

A new adaptively hybrid filtering algorithm is proposed to reduce the artifacts caused by metal in CT image. Firstly, the method is used to preprocess the projection data of metal region and is reconstruct by filtered back projection (FBP) method. Then the expectation maximization algorithm (EM) is performed on the iterative original metal project data. Finally, a compensating procedure is applied to the reconstructed metal region. The simulation result has demonstrated that the proposed algorithm can remove the metal artifacts and keep the structure information of metal object effectively. It ensures that the tissues around the metal will not be distorted. The method is also computational efficient and effective for the CT images which contains several metal objects.
Algorithms ; Artifacts ; Metals ; Tomography, X-Ray Computed ; methods

Adult ; Aged ; Endoscopy ; Female ; Humans ; Male ; Middle Aged ; Nasal Polyps ; psychology ; Otorhinolaryngologic Surgical Procedures ; Postoperative Period ; Retrospective Studies ; Sinusitis ; psychology ; Treatment Outcome ; Young Adult

Adult ; Aged ; Aged, 80 and over ; Endoscopy ; Epistaxis ; diagnosis ; surgery ; Female ; Hemostasis, Endoscopic ; Humans ; Male ; Middle Aged ; Retrospective Studies

AlM:To compare the efficacy and safety of latanoprost and brimonidine in the treatment of open angle glaucoma, and provide reference for rational drug use.METHODS:A total of 121 cases ( 136 eyes ) who were diagnosed as primary open angle glaucoma were selected in this study, and they were randomly divided into experimental group (62 cases, 70 eyes) and control group ( 59 cases, 66 eyes) according to different drug treatment. Patients in the control group received brimonidine eye drops twice a day, while patients in the experimental group received latanoprost eye drops once a day. The intraocular pressure, visual acuity and adverse reactions were checked of the two groups in the following 3mo.RESULTS:The intraocular pressure of patients in the control group was 18. 1 ± 1. 3mmHg, while the experimental group was 17. 0 ± 0. 9mmHg after 12wk of treatment, which were both lower than before (P<0. 05). The fluctuation of intraocular pressure in the experimental group was significantly lower than that of the control group. There was no significant difference in the LogMAR visual acuity between before and after treatment in the control group, while the LogMAR visual acuity of the experimental group was significantly improved. The control group had hyperemia, burning sensation, tearing, eyelid edema and other adverse side effects, and the experimental group had little adverse reactions. CONCLUSlON: Latanoprost can significantly reduce intraocular pressure in glaucoma patients with in the follow- up time, and reduce the impact of elevated intraocular pressure in the vision of glaucoma patients, with little adverse reaction, worthy of clinical application.

Objective To explore the value of miniprobe sonography (MPS) in differentiating Crohn??s disease (CD) and ulcerative colitis (UC). Methods 46 patients with active inflammatory bowel disease (IBD) were included into the patient group (16 patients with CD and 30 cases with UC). 20 healthy cases ( underwent physical examination in outpatient department) were recruited as the control group. All cases underwent MPS and high sensitive C-reactive protein (Hs-CRP) test.The MPS measurement index include thetotalwallthickness(TWT), mucosal thickness (MT), submucosal thickness (SMT), muscularispropria thickness (MPT), and the number of enlarged colic and paracolic lymph nodes. Results TheTWT, M, SM, MP(mm)and Hs-CRP(mg/L)in CD, UC and control group are 5.84 ± 1.42, 1.48 ± 0.23, 1.88 ± 0.28, 2.31 ± 0.85, 40.58 ± 19.33, 4.74 ± 1.01, 1.79 ± 0.35, 1.41 ± 0.25, 1.32 ± 0.34, 22.41 ± 15.25,2.86 ± 0.23, 0.97 ± 0.13, 1.06 ± 0.11, 0.64 ± 0.0 and 1.70 ± 0.65. TWT, MT, SMT, MPT and Hs-CRP in UC group has significant different with those in controp group(P<0.05). The mean value of TWT, MT, SMT, MPT and Hs-CRP in CD group are higher than those in UC group. M in UC group is higher than that in CE group. The difference is significant(P<0.05). 5 cases in CD and 2 cases with UC had enlarged colic or paracolic lymph nodes. Conclusions The MPS can distinctly observe the changesof different colonic tissue layers and the surrounding tissue structures in IBD patients,which helps for distinguishing active CD from UC.

OBJECTIVETo investigate the inhibitory effects of OMT on TGF-β1-induced CFBs proliferation, and then explore the mechanism.

METHODThe experiment was randomly divided into 6 groups as following: control group (serum free DMEM), model group (20 μg x L(-1) TGF-β1), OMT low dose group (1.89 x 10(-4) mol x L(-1) + 20 μg x L(-1) TGF-β1), OMT medium dose group (3.78 x 10(-4) mol x L(-1) + 20 μg x L(-1) TGF-β1), OMT high dose group (7.56 x 10(-4) mol x L(-1) + 20 μg x L(-1) TGF-β1), SB203580 group (p38MAPK blocking agent, 1 x 10(-5) mol x L(-1) + 20 μg x L(-1) TGF-β1). Vimentin of CFBs was identified by immunocytochemical methods, α-SMA of myFBs as well. Inhibitory effects of OMT on CFBs proliferation was detected by the MTT assay. Picric acid Sirius red staining was analyzed collagen type I and collagen type III deposition. Western blot was determined the expression of p38MAPK, p-p38MAPK, collagen type I and collagen type III.

RESULTMTT results showed that OMT significantly inhibited CFBs proliferation induced by TGF-β1 (P < 0.01) α-SMA immunocytochemical experiments suggested that OMT could protect against the CFBs proliferation. OMT could significantly decrease the deposition of collagen type I and collagen type III by Western bloting and picric acid Sirius red staining. Western blot results showed that TGF-β1 enhanced p38MAPK phosphorylation, however OMT attenuated the phosphorylation of p38MAPK induced by TGF-β1 (P < 0.01).

CONCLUSIONOMT can inhibit the CFBs proliferation induced by TGF-β1, and its mechanism may be involved in inhibiting p38MAPK phosphorylation.

Alkaloids ; pharmacology ; Animals ; Cell Proliferation ; drug effects ; Collagen ; metabolism ; Down-Regulation ; Female ; Fibroblasts ; drug effects ; Heart ; drug effects ; In Vitro Techniques ; Male ; Phosphorylation ; Quinolizines ; pharmacology ; Rats ; Rats, Sprague-Dawley ; Transforming Growth Factor beta1 ; antagonists & inhibitors ; p38 Mitogen-Activated Protein Kinases ; antagonists & inhibitors ; metabolism