Objective To choose proper proton magnetic resonance spectroscopy(~1XH-MRS) parameters to fit for practical femoral marrow cavity and to produce short-timed,well-repeated and excellent ~1H-MRS images.Methods The tentative study of ~1H-MRS on the normal femoral bone marrow in 26 volunteers was performed with a 1.5 T MR after the informed consent.The single-voxel spectroscopy and stimulated echo acquisition mode were used for ~1H-MRS collection.~1H-MRS parameters for 12 volunteers were 128 acquisitions,1 cm?1 cm?1 cm volume of interest(VOI)size and repeatedly 2—3 times within the same location.~1H-MRS parameters for another:14 volunteers were different numbers of acquisition (128 and 256 times,respectively)and different VOI sizes(2 cm?2 cm?2 cm and 1 cm?1 cm?1 cm, respectively).Results For ~1H-MRS with 1 cm?1 cm?1 cm size of VOI and 128 times of acquisition with the full width haft max of water≤8—12 Hz,the base-line was steady and the signal-noise ratio was high up to 11.31.~1H-MRS was different in the different femoral locations showing the maximum peak sites at near 0.90 ppm(?10~(-6))or 1.65 ppm,but~1H-MRS within the same location was always same or similar with different VOI sizes(1 cm?1 cm?1 cm or 2 cm?2 cm?2 cm)or different numbers of acquisition(128 or 256 times).~1H-MRS acquisition time was not related with the size of VOI but with the numbers of acquisition.128 and 256 times of acquisition cost 199 s and 391 s,respectively.Conclusion With the technique of small size of VOI(1 cm?1 cm?1 cm)and decreased numbers of acquisition(128 times),it is propable to get well-repeated and excellent ~1H-MRS within less time.It is also more practical for clinics to achieve ~1H-MRS of the femoral marrow with the proper technique.

AlM:To observe the relationship between axial length and complications of phacoemulsification with intraocular lens ( lOL) implantation in high axial myopia eyes and normal axis eyes.
METHODS: A retrospective review of 843 consecutive patients ( 1 042 eyes ) of cataract extraction with phacoemulsification and lOL implantation in our hospital from February 2012 to February 2013 was performed. The patients were divided into two groups according to the axial length: 853 eyes were in normal axis group ( 21-24mm) and 189 eyes were in high axial myopia group (≥26mm). The two groups were compared regarding surgical complications, such as vitreous loss, posterior capsular rupture, nucleolus drop, and abnormal location of lOL.
RESULTS:Age was a risk factor in both groups. There was positive correlation between age and surgical complications, and between axial length and surgical complications, especially for complications with posterior capsular rupture and vitreous loss.
CONCLUSlON:As the results illustrate, in this survey, age and high axial lengthare statistically significant risk factors for incidence of complications of phacoemulsification. Anticipation of these complications and also preparation and prophylactic measures may decrease incidence of these complications.

Objective To assess the quantitative relationship between the distribution of Himalayan marmot and its ecological environment,the terrain,the temperature and the precipitation,using remote sensing and geographic information system in Qinghai province.Methods The distribution of Himalayan marmot was located by Google Earth and ArcGIS software and by using field survey data provided by Chinese Center for Disease Control and Prevention.The corresponding ecological environment of marmot including terrain,temperature and precipitation were derived from the spatial information datasets.All results were processed according to the overlay and statistics analysis using ArcGIS software.Results Seventy-seven point twenty-seven percent(153/198) of Himalayan marmot were distributed in the area of elevation between 3000 and 4000 meters.The number of marmot reached the highest when the slope was between 0 and 17 degrees,and aspect range was between 91 and 270 degrees,180 degree was as south direction.During the period with the maximum temperature of the warmest month of 14.3-17.5 ℃,17.6-20.8 ℃ and 20.9-24.0 ℃,the distribution of marmot reached 95％(186/198) of the total area.Meanwhile,most of the marmot were presented in the area with average precipitation of 46-108 mm.Conclusions A quantitative analysis of appropriate ecological environment of Himalayan marmot in a large scope is carried uul successfully using remote sensing and geographic information system.The study indicates that spatial information technology has important applications in plague prevention and control.

OBJECTIVETo observe the effect of Bushen Huoxue Recipe (BHR) on inhibiting vascular calcification (VC) in chronic renal failure (CRF) rats by regulating BMP-2/Runx2/Osterix signal pathway, and to explore its possible mechanism.

METHODSThirty SD rats were randomly divided into the normal group, the model group, and the BHR group, 10 in each group. Rats in the model group and the BHR group were administered with 250 mg/kg adenine suspension by gastroagavage and fed with 1.8% high phosphorus forage, once per day in the first 4 weeks, and then gastric administration of adenine suspension was changed to once per two days in the following 5-8 weeks. Rats in the BHR group were administered with BHR at the daily dose of 55 g/kg by gastrogavage in the first 8 weeks, once per day. Equal volume of normal saline was given to rats in the normal group by gastrogavage for 8 weeks. Histological changes in renal tissue and aorta VC were observed by HE staining and alizarin red staining respectively. Levels of calcium (Ca), phosphorus (P), serum creatinine (Cr), blood urea nitrogen (BUN), and intact parathyroid hormone (iPTH) in serum were detected. Protein expression levels of bone morphogenetic protein (BMP-2), Runt related transcription factor (Runx2) , and Osterix were detected by Western blot.

RESULTSHE staining showed that compared with the normal group, disordered glomerular structure, tubular ectasia and dropsy, intracavitary inflammatory cell infiltration, dark brown crystal deposition in kidney tubules, renal interstitial fibrosis, and decreased number of renal blood vessels in the model group. Compared with the model group, normal glomerular numbers increased more, reduced degree of tubular ectasia, decreased number of inflammatory cells, and reduced adenine crystal deposition in the BHR group. Alizarin red staining showed that compared with the normal group, calcified nodes could be found in the model group, with extensive deposition of red particle in aorta. Compared with the model group, calcified nodes were reduced in the BHR group. Compared with normal group, serum levels of P, SCr, BUN, and iPTH significantly increased, serum Ca level significantly decreased, protein expressions of BMP-2, Runx2, Osterix also increased in the model group (P < 0.05, P < 0.01). Compared with the model group, serum levels of P, SCr, BUN, and iPTH levels significantly decreased, serum Ca level significantly increased, protein expressions of BMP-2, Runx2, Osterix also decreased in the BHD group (P < 0.05, P < 0.01).

CONCLUSIONBHD could improve renal function, Ca-P metabolism, and renal histological changes in CHF rats, down-regulate the expression level of BMP-2/Runx2/Osterix signal pathway in vascular calcification of CRF, which might be one of the mechanisms for inhibiting VC in CHF.

Animals ; Blood Urea Nitrogen ; Bone Morphogenetic Protein 2 ; metabolism ; Core Binding Factor Alpha 1 Subunit ; metabolism ; Drugs, Chinese Herbal ; pharmacology ; Kidney ; pathology ; Kidney Failure, Chronic ; drug therapy ; metabolism ; Kidney Function Tests ; Kidney Tubules ; pathology ; Random Allocation ; Rats ; Rats, Sprague-Dawley ; Signal Transduction ; drug effects ; Transcription Factors ; metabolism ; Vascular Calcification ; drug therapy

Purpose To investigate the difference of expression of autophagy-related gene (Beclin1,LC3,mTOR) in the development of esophageal squamous cell cancer.Methods Immunohistochemical EnVision method was adopted to detect the expression of autophagy-related gene Beclinl,LC3 and mTOR in 30 cases of normal esophageal mucosa,32 cases of low-grade intraepithelial neoplasia (LGIN),34 cases of highgrade intraepithelial neoplasia (HGIN),35 cases of early carcinoma and 126 cases of advanced esophageal carcinoma,respectively.The correlation between their expression with clinicopathologic factors was also analysed.Results The expression of Beclin1 in advanced esophageal carcinoma was obviously higher than that in another four groups (P ＜ 0.005).LC3 expression in advanced esophageal carcinoma was significantly higher than that in normal esophageal mucosa,LGIN and early carcinoma (P ＜ 0.005).The expression of mTOR in advanced esophageal carcinoma was significantly higher than that in normal esophageal mucosa,LGIN and HGIN (P ＜ 0.005).In advanced esophageal carcinoma group,the expression of Beclin1,LC3 and mTOR was related to tumor TNM stage and lymph node metastasis (P ＜ 0.05).Beclin1 expression was positively associated with LC3 and mTOR expression in advanced squamous cell carcinoma (P ＜ 0.05).Positive correlation was also observed between the expression of mTOR and LC3 in advanced esophageal carcinoma and HGIN (P ＜ 0.05).Conclusion In the carcinogenesis and development of esophageal cancer,Beclin1,as a tumor suppressor gene,activates autophagy and leads to excessive self consumption and death of tumor cells.mTOR promotes tumor growth by inhibiting autophagy and promoting angiogenesis.The combined detection of Beclinl,LC3 and mTOR may be beneficial to evaluate the progression and prognosis of esophageal squamous cell cancer.

OBJECTIVETo compare the diagnostic value of barium enema (BE), computed tomography (CT) and magnetic resonance imaging(MRI) in primary colorectal carcinoma.

METHODSA total of 64 patients with suspected colorectal carcinoma received BE (n=39), spiral CT (n=31) and MRI (n=42). The detective results were compared with the surgical results.

RESULTSAmong 64 patients, 54 cases were pathologically proved as colorectal carcinoma. The diagnostic sensitivity of BE,CT and MRI was 96.9% ,96.2% and 97.1% ,and the overall accuracy was 92.3% 83.9 % and 90.5% respectively. The overall accuracy of CT and MRI for tumor T staging was 73.1% and 82.9% respectively.

CONCLUSIONBE can be considered as a primary approach for diagnosing colorectal carcinoma, CT and MRI be necessary diagnostic approaches. Combined BE with MRI is the best choice for diagnosing of colorectal carcinoma.

Adult ; Aged ; Aged, 80 and over ; Barium Sulfate ; Colorectal Neoplasms ; diagnostic imaging ; pathology ; Enema ; Female ; Humans ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Neoplasm Staging ; Sensitivity and Specificity ; Tomography, Spiral Computed

Adult ; Fatty Liver ; diagnostic imaging ; Female ; Humans ; Male ; Middle Aged ; Perfusion Imaging ; Tomography, Spiral Computed ; Young Adult

Objective To evaluate the situation of musculoskeletal imaging research at home and abroad and the disparity and consistency between them.Methods Statistic analysis was done with the musculoskeletal articles published in those journals during the last decade,including Chinese Journal of Radiology,Journal of Clinical Radiology,Radiology,American Journal of Roentgenology(AJR)and the British Journal of Radiology(BJR).Results The development of museuloskeletal imaging research was very imbalaneed among different areas and hospitals in China.The rate of clinical research treatise and imaging technique articles at home was 76.3%(357/468)and 10.0%(47/468),respectively,while that was 75.7%(731/966)and 10.8%(105/966),respectively abroad.The rate of MR image technique articles in China was lower than that abroad.The rate of articles on basic research at home and abroad was 5.3%(25/468)and 7.9%(76/966),respectively.The rate of articles about museuloskeletal imaging simply using CT or MR at home was 20.1%(94/468)and 29.7%(139/468),respectively,while that was 5.1%(49/966)and 60.4%(548/966),respectively abroad.The rate of articles about interventional therapy and synthetic imaging at home was 9.2%(43/468)and 29.3%(137/468),respectively,while that was 4.7%(45/966)and 22.5%(217/966),respectively abroad.With regard to the diseases category,the research focused on the bone tumors and the tumor-like disease in China,while in other countries,the research focus had been diverted to the trauma of bone and joint,and the anatomy and disease of muscle and ligament,which was unsatisfactory in China.More focus had been put on imaging anatomy, cartilage disease and osteoporosis in other countries than in China.The research on the radiation dosage the subject received in the examination,the apphcation of Micro-CT and Micro-MR to musculoskeletal imaging was developed in other countries,but it had not been reported in China.Conclusion Although great success has been achieved in the research of musculoskeletal imaging in the last decade,there is still much disparity comparing with other countries,and the research is very imbalanced among different areas and hospitals in China.We should emphasize the application of MRI to musculoskeletal system and pay more attention to the basic research and imaging anatomy research,especially the research on ligament,muscle and cartilage.

OBJECTIVETo explore the clinical value of Lens culinaris agglutinin-reactive alpha-fetoprotein detected by microspincolum method for judgment of treatment response in patients with hepatocellular carcinoma undergoing transcatheter arterial chemoembolization.

METHODSTwenty eight patients with HCC undergoing TACE follow-up in hospital were recruited. AFP and AFP-L3 were measured in all the patients before and after TACE, and correlations were analyzed between AFP-L3% and response to treatment.

RESULTSAmong the twenty eight patients with HCC undergoing TACE, 8 out 11 case in AFP-L3% descent group had well treatment response, 5 out 17 case in AFP-L3% elevated group had well treatment response(Chi2 = 4. 858, P < 0. 05).

CONCLUSIONSThe detection of AFP-L3 by microspincolum method is useful to judgment of treatment response in patients with HCC undergoing TACE.

Adult ; Aged ; Carcinoma, Hepatocellular ; chemistry ; therapy ; Chemoembolization, Therapeutic ; methods ; Female ; Humans ; Liver Neoplasms ; chemistry ; therapy ; Male ; Middle Aged ; Treatment Outcome ; alpha-Fetoproteins ; analysis

OBJECTIVETo investigate the genetic association between the polymorphism of cytosolic phospholipase A2 (cPLA2) family genes and schizophrenia in the North Han Chinese.

METHODSMethod of polymerase chain reaction-based ligase detection reaction (PCR-LDR) was applied to genotype 10 single nucleotide polymorphisms (SNPs) of cPLA2 family genes among 201 pedigrees consisting of fathers, mothers and affected offsprings with schizophrenia. Haplotype relative risk (HRR) test, transmission disequilibrium test (TDT), haplotype transmission analysis and multiple locus analysis were conducted to analyze the genotyping data.

RESULTSThe genotypic frequency of cPLA2 gene did not deviate from Hardy-Weinberg equilibrium in both case and control groups. HRR and TDT showed that the 10 SNPs were not associated with schizophrenia (P > 0.05). Analysis for haplotype transmission showed that no haplotype systems was associated with schizophrenia (P > 0.05). Results from COA and COG tests showed a disease association for the rs2162886-rs1668589, rs891014-rs1668589 and rs2307279-rs7542180 combinations (chi2 = 6.913, P = 0.032; chi2 = 8.393, P = 0.015; chi2 = 8.447, P = 0.038).

CONCLUSIONMany loci in the cPLA2 family genes were associated with schizophrenic.

Adolescent ; Adult ; Asian Continental Ancestry Group ; genetics ; China ; epidemiology ; Female ; Gene Frequency ; genetics ; Genetic Predisposition to Disease ; genetics ; Genotype ; Haplotypes ; genetics ; Humans ; Male ; Phospholipases A2, Cytosolic ; genetics ; Polymorphism, Single Nucleotide ; genetics ; Schizophrenia ; epidemiology ; genetics ; Young Adult