Objective To explore the relations among blood lipid,blood rheology and microcirculation of bulbar conjunctiva of model rats of diabetesⅡwith heart blood stasis syndrome.Methods The rats were fed with high fat and caloric feed.Intraperitoneal injection of streptozotocin(STZ)in small dosage was applied to make the model of diabetesⅡ.Then the model of heart blood stasis syndrome was made through introperitoneal injecting dexamethasone and adrenalin.Eight hours after empty stomach,the rats were anaesthetized to measure the microcireulation of bulbar conjunctiva and test the blood lipid and carotid blood rheology.Results The indices of blood lipid,blood rheology and bulbar eonjunetiva microcirculation of model rats were all changed to abnormal,tallying with the changes of cardiovascular complications of diabetes.

OBJECTIVE:To study the in vitro uptake of Resibufogenin(RBG)lactic acid glycolic acid copolymer-water solu-ble vitamin E (PLGA-TPGS) in human liver cancer HepG2 cells,mouse ascites-type lymphatic metastasis of tumor HCa-F cells, and the toxicity on HepG2 cells. METHODS:RCPTN loading RBG and coumarin-6(C6)were prepared. Fluorescent inverted mi-croscope was used to observe the in vitro uptake by RCPTN HepG2,HCa-F cells. It was divided into negative control group,blank PLGA-TPGS nanoparticles(EPTN)group,5-fluorouracil solution(FS)group,RBG solution(RS)group,RBG/PLGA nanoparti-cles(RPN)group and RPTN group. WST-1 was conducted to investigate the optical density at 450 nm wavelength of HepG2 cells after 24,48,72 h incubated by FS,RS,RPN and RPTN with different final concentrations (1.25,2.5,5,10,20 μg/mL);the cell viability (CV) and half inhibitory concentration (IC50) were calculated. RESULTS:RCPTN distributed around the nucleus of HepG2,HCa-F cells. CV was decreased by RBG concentration increased in RPN group and RPTN group,and decreased by time prolonged;compared with FS group,CV in RPTN group was decreased(P<0.05 or P<0.01). IC50 of HepG2 cells incubated by FS,RS,RPN and RPTN was decreased by time prolonged,ordered by RS>FS>RPN>RPTN;IC50 incubated by RPN and RPTN for 48,72 h was obviously less than that of FS and RS(P<0.05 or P<0.01). CONCLUSIONS:RPTN can deliver RBG in-to HepG2,HCa-F cells,showing inhibition effect on HepG2 cells which is stronger than RPN,RS and FS.

Objective To investigate the imaging diagnosis of acetabular dysplastic coxarthrosis. Method The imaging of the acetabular dysplasia was analyzed in 51 patients (87 hips). All but four patients were women. The age ranged from 22 to 78 years, and the mean age was 42.6 years. Pelvis radiographs were studied in all cases, and CT scan was performed in 18 cases and MRI in 10 cases. Results The fundamental signs on the plain film included shallow acetabulum, increased obliquity and insufficient coverage of the femoral head by the acetabulum. The CE angles were determined in all the cases, ranging from -10? to 30?, mean 12.9?. The charp angles ranged from 35? to 67?, mean 45.3?. The secondary osteoarthritis were revealed in 75 hips (84.2%). 54 hips (62.1%) had cyst like lesions in weight bear area of the acetabulum or femoral head. 19 hips had subluxation of femoral head. CT and MRI displayed small cystlike lesions and forward shift of the femoral head, which could not be shown on plain film, respectivly in 13 and 10 hips. Conclusion The cyst like lesion of subarticular region is a common sign in acetabular dysplastic coxarthrosis. CT or MRI can show the early osteolytic lesion and forward subluxations.

Objective To investigate the mechanism of radiosensitization by cetuximab (C225) on human tongue cancer Tca8113 cell line in vitro.Methods Tca8113 cell line with and without C225 treatment received 6 MV X-ray irradiation of different doses (0, 2,4,6, 8 and 10 Gy). Cell proliferation,cell-cycle distribution and clonogenic survival were analyzed through cell counting,MTT,colony formation assay,and flow cytometry,respectively.Results After irradiation of different doses,the growth inhibition rates in C225 group were higher than control (t =- 15.6 - -3.0,P＜0.05),the radiobiological parameters (D0,Dq,N,and SF2 ) in C225 group were lower than control so that SER of C225 group was 1.353,and the proportions of G0/G1 cells in C225 group were higher than control ( t =-7.64,-7.89,-4.78,P ＜0.05 ) at 4,6,8 Gy.When the irradiation doses increased,the early phase apoptosis in both groups increased at first and then decreased with the maximum difference at 4 Gy [(7.96±0.36)％ in C225 group and (4.13 ±0.29)％ in control group,t =-12.75,P＜0.01 ].Conclusions C225 has radiosensitization effect on Tca8113 cell line,possible through Go/G1 arrest and induction of apoptosia.

BACKGROUNDOssification of the posterior longitudinal ligament (OPLL) has a strong genetic background. Previous studies have shown that bone morphogenetic protein-2 (BMP2) and BMP2 mRNA are expressed in ossifying matrix and chondrocytes adjacent to cartilaginous areas of OPLL tissues and mesenchymal cells with fibroblastic features in the immediate vicinity of the cartilaginous areas. It is suggested that BMP2 plays different roles in the different stages of development of OPLL. However, it remains unknown which factors induce ligament cells to produce BMP2.

METHODSOPLL patients (n = 192) and non-OPLL controls (n = 304) were studied. Radiographs of the cervical spine were analyzed for extent of OPLL. We investigated whether single nucleotide polymorphisms of exons 3 (-726) T/C and 3 (-583) A/G in the BMP2 gene are statistically associated with genetic susceptibility to OPLL in Chinese Han subjects.

RESULTSThere was no statistical difference between the occurrence of exons 3 (-726) T/C and 3 (-583) A/G and the occurrence of OPLL in the cervical spine. However, there was a significant association between occurrence of exon 3 (-726) T/C polymorphism and occurrence of OPLL in males of cases and controls in the cervical spine. In addition, no significant association was found between the exons 3 (-726) T/C and 3 (-583) A/G with number of ossified cervical vertebrae in OPLL patients.

CONCLUSIONSExon 3 (-583) A/G polymorphism in BMP2 gene is not associated with the occurrence and the extent of OPLL in the cervical spine. Chinese Han male patients with TC and CC genotypes in exon 3 (-726) T/C have genetic susceptibility to OPLL but not to more extensive OPLL in the cervical spine.

Asian Continental Ancestry Group ; genetics ; Bone Morphogenetic Protein 2 ; genetics ; China ; Exons ; Female ; Genetic Predisposition to Disease ; genetics ; Humans ; Male ; Middle Aged ; Neck ; Ossification of Posterior Longitudinal Ligament ; genetics ; Polymorphism, Genetic

OBJECTIVETo evaluate the safety and the clinical value of external use of jiuyi Powder (JP) in treating plasma cell mastitis using partial least-squares discriminant analysis (PLSDA).

METHODSTotally 50 patients with plasma cell mastitis treated by external use of JP were observed and biochemical examinations of blood and urine detected before application, at day 4 after application, at day 1 and 14 after discontinuation. Blood mercury and urinary mercury were detected before application, at day 1, 4, and 7 after application, at day 1 and 14 after discontinuation. Urinary mercury was also detected at 28 after discontinuation and 3 months after discontinuation. The information of wound, days of external application and the total dosage of external application were recorded before application, at day 1, 4, and 7 after application, as well as at day 1 after discontinuation. Then a discriminant model covering potential safety factors was set up by PLSDA after screening safety indices with important effects. The applicability of the model was assessed using area under ROC curve. Potential safety factors were assessed using variable importance in the projection (VIP).

RESULTSUrinary β2-microglobulin (β2-MG), urinary N-acetyl-β-D-glucosaminidase (NAG), 24 h urinary protein, and urinary α1-microglobulin (α1-MG) were greatly affected by external use of JP in treating plasma cell mastitis. The accuracy rate of PLSDA discriminate model was 74. 00%. The sensitivity, specificity, and the area under ROC curve was 0. 7826, 0. 7037, and 0. 8084, respectively. Three factors with greater effect on the potential safety were screened as follows: pre-application volume of the sore cavity, days of external application, and the total dosage of external application.

CONCLUSIONSPLSDA method could be used in analyzing bioinformation of clinical Chinese medicine. Urinary β2-MG and urinary NAG were two main safety monitoring indices. Days of external application and the total dosage of external application were main factors influencing blood mercury and urine mercury. A safety classification simulation model of treating plasma cell mastitis by external therapy of JP was established by the two factors, which could be used to assess the safety of external application of JP to some extent.

Acetylglucosaminidase ; Alpha-Globulins ; Discriminant Analysis ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Humans ; Least-Squares Analysis ; Mastitis ; drug therapy ; Plasma Cells ; ROC Curve ; Safety

Objective To prepare quercetin ( QT )-loaded polylactic-co-glycolic acid-D-α-tocopheryl polyethylene glycol 1000 succinate ( PLGA-TPGS) nanoparticles ( QPTN) and QT-loaded polylactic-co-glycolic acid ( PLGA) nanoparticles ( QPN) by using QT as model drug and PLGA-TPGS or PLGA as carrier materials, and to investigate the quality of the two nanoparticles. Methods QPTN and QPN were prepared by using the ultrasonic emulsification-solvent evaporation method, and their surface morphology,size and surface charge were detected by using a transmission electron microscope ( TEM) and a Nano ZS90 light scattering and laser Doppler anemometry, respectively. Drug loading ( DL) , entrapment efficiency ( EE) and in vitro drug release of QT in the two nanoparticles were determined by using a reverse phase-high performance liquid chromatography (RP-HPLC) on Hypersil C18 column (4.6 mm×250 mm, 5 μm) with methanol and 0.03% phosphoric acid (3︰2) as mobile phase, and the detective wavelength was 370 nm. Results TEM images exhibited that two nanoparticles were all spherical and regular. The average sizes of QPTN and QPN were (155.4±2.7) nm and (363.8±3.2) nm, while DL and EE of QPTN were approximately (21.6±2.8)%, (93.7±2.9)% (n=6), and DL and EE of QPN were approximately (15.0±1.5)%, (64.6± 1.6)% (n=6), respectively. Both of nanoparticles exhibited sustained release, and the cumulative QT release of QPTN and QPN reached (85.8±2.8)% and (68.6±1.4)% (n=6) at day 30, respectively, with a significant difference between them (P<0.05) . Conclusion QPTN gets smaller size, higher DL and EE, and exhibits sustained release, and the in vitro cumulative QT release is faster and more complete than QPN relatively.

Objective To explore the characteristic of fractional amplitude of low frequency fluctuation (fALFF) and the relationship with the severity of depression, suicidal ideation and suicide risk in depression patients with suicidal ideation with resting-state functional magnetic resonance imaging (rs-fMRI). Methods Resting state functional magnetic resonance imaging maps were conducted using fractional amplitude of low frequency fluctuation (fALFF) in 52 depression patients (30 with suicidal ideation and 22 without) and 21 healthy controls (HCs). The severity of depression was evaluat-ed by using Hamilton Depression scale(HAMD). The suicidal ideation, the suicide risk in depression patients with sui-cidal ideation were both assessed by the Beck Scale for Suicide Ideation. The correlation between the fALFF value and the score of HAMD and the Beck Scale for Suicide Ideation was analyzed. Results MRI revealed significant differences in fALFF in the left superior/middle occipital gyrus and the right middle/inferior occipital gyrus (P<0.05, AlphaSim cor-rected)between depression patients with suicidal ideation and the HCs. Compared to the HCs, depression patients with-out suicidal ideation showed a higher fALFF in the left middle occipital gyrus (P<0.05, AlphaSim corrected). MRI re-vealed significant differences in fALFF in the left middle occipital gyrus (P<0.01, AlphaSim corrected)and the right mid-dle occipital gyrus (P<0.01, AlphaSim corrected) between depression patients with suicidal ideation and without. The fALFF of left middle occipital gyrus (r=0.366, P=0.046) and right middle occipital gyrus (r=0.513, P=0.004) were posi-tively correlated with the scores of HAMD, respectively whereas were not correlated with suicidal ideation and suicide risk. Conclusions Depression patients with suicidal ideation have an abnormal spontaneous activity in their left and right middle occipital gyrus. The increased activity in these brain areas are probably associated with the severity of de-pression whereas are not associated with suicidal ideation or suicide risk.

The triterpenoids of Dichrocephala benthamii were investigated by means of silica gel, Sephadex LH-20 and semi-preparative HPLC. Nine triterpenoids were isolated from D. benthamii. By analysis of the EI-MS, NMR spectra and comparison to the data reported in literatures, the structures of these compounds were determined as β-amyrin formiate (1), β-amyrin acetate (2), β-amyrenol (3), β-amyrone (4), 3β-hydroxy-olean-11, 13 (18)-diene (5) , Δ12-oleanene (6) , friedelin (7), dammaradienyl acetate (8), epi-friedeband (9), respectively. Compounds 1-8 were isolated for the first time form this genus, compound 9 was isolated for the first time from this plant, whereas β-amyrin formiate (1) was a new natural product.
Asteraceae ; chemistry ; Triterpenes ; chemistry ; isolation & purification

OBJECTIVETo compare the extent of genetic damages in somatic and germ cells from patients of benzene poisoning, silicosis and gas poisoning, which may provide clues for protection and reproductive healthcare.

METHODS174 patients with three types of occupational disease (including 48 with benzene poisoning, 71 with silicosis and 55 with gas poisoning) and 80 healthy controls had their aberrant chromosome and micronuclei rates measured with routine methods. Male patients also had their sperm samples measured for sperm abnormities and de novo mutations.

RESULTSThe aberrant chromosome rate, micro-nuclei rate and sperm abnormity were as followed: benzene poisoning 0.4%, 1.52 per thousand, (62 +/- 14%), silicosis 0.51%, 2.31 per thousand, (41 +/- 7%), harmful gas poisoning 0.42%, 1.55 per thousand, (48 +/- 8%), all being significantly higher than those of the controls [0.20%, 0.34 per thousand, (27 +/- 5)%]. The aberrant chromosome and micro-nuclei rates of silicosis group were higher than other two groups, but without statistical significance. Sperm abnormity of benzene poisoning group was significantly higher than that of other groups. In addition, de novo mutations in sperm of benzene poisoning group were detected.

CONCLUSIONPatients with the studied occupational diseases not only have genetic damage in their somatic cells, but also acquire de novo mutations in germ cells.

Asbestosis ; Benzene ; poisoning ; Chromosome Aberrations ; Gas Poisoning ; Humans ; Occupational Diseases ; genetics ; Occupational Exposure