Objective:To investigate the correlation between plasma homocysteine (Hcy) concentration and transient ischemic attack (TIA) and traditional vascular risk factors.Methods:The plasma Hcy concentrations of 112 patients with TIA and 62 controls were measured by fluorescenee polarization immunoassay.Hcy concentrations and related risk factors were analyzed.Results:The risk of TIA was increased significantly in plasma Hcy concentration 10.0 to 14.9 μmol/L group(OR=2.450,95% CI 1.091 to 5.502) and≥15.0 μmol/L group(OR=5.169,95% CI 2.096 to 12.746) compared with plasma Hcy concentration＜10.0 μmol/L group.Using TIA as the dependent wariable,various vascular risk factors (including plasma Hcy concentration) as the independent variable,logistic regression was analyzed.The result showed that the risk of TIA was increased significantly in plasma Hcy concentration＞10.0 μmol/L group compared with plasma Hcy concentration＜10.0 μmol/L group(OR=3.150,95% CI 1.380 to 7.192).Conclusions:Plasma Hcy concentration is an independent risk factor for TIA.

Objective To explore the role of viral infection in the development of drug eruption in patients with HIV infection, and to evaluate the efficacy of antiviral treatment. Methods This study enrolled 87 HIV-positive patients, including 11 with and 76 without drug eruption, all of whom received highly active antiretroviral therapy(HAART). Clinical data on, baseline CD4+ and CD8+ T cell counts and CD4/CD8 ratio in these subjects were retrospectively analyzed. Results The severity of drug eruption was mild in the 11 HIV-positive patients, with a mean latency period of (14.00 ± 8.10)(range, 8 - 34)days. Of the 11 patients with drug eruption, 7 had liver function impairment, which was not in accordance with the severity of skin lesions. Drug eruption was controlled in all the 11 patients after anti-anaphylactic treatment without withdrawal of antiviral drugs. Compared with 75 HIV-positive patients without drug eruption, the 11 HIV-positive patients with drug eruption showed significantly increased baseline CD4 + T cell counts (493.00 ± 245.68 (range, 42 - 810)/μl vs. 347.81 ± 167.00 (range, 11 - 814)/μl, t = 647.50, P < 0.05), but decreased proportion of patients with baseline CD4+ T cell counts below the lower limit of normal(3/11 vs. 48/75(64.00%), X2 = 3.95, P < 0.05). There were no significant differences between 10 patients with drug eruption and 69 patients without drug eruption in the baseline CD8+ T cell count(1472.30 ± 858.55/μl vs. 1356.59 ± 684.06/μl, P > 0.05), CD4/CD8 ratio(0.40 ± 0.27 vs. 0.29 ± 0.16, P > 0.05), or percentage of patients with a CD4/CD8 ratio below the lower limit of normal (9/10 vs. 68/69 (98.55%), P >0.05). Conclusions The latency period of drug eruption seems to be long in HIV-positive patients receiving HAART, and mild drug eruption can be complicated by liver function impairment in the patients. Relatively high CD4 + counts may be a risk factor for the development and aggravation of drug eruption in HIV-positive patients.

OBJECTIVEIn order to find out the cause of molar intrusion and how to avoid molar intrusion, we analyze the movement tendency of tooth by changing the angles of upper accentuated-curve and the height of free traction hook.

METHODSSpiral CT scanning and Mimics 10.0 software were employed in this study to construct the three dimensional finite element model of maxillary teeth, periodontal ligaments and alveolar bone as well as the inch stainless steel upper accentuated-curve archwires with different angles (5 degrees, 10 degrees, 15 degrees, 20 degrees, 25 degrees) and the free traction hook with different height (2.1, 4.0, 5.5 mm). By exerting 1.5 N backward force to analysis the displacement trend of maxillary tooth.

RESULTSUpper accentuated-curve archwires made the incisors labially tip, intruse, distally upright and mesilabially torsion; made the canines labially tip, prolong, mesial-tipped and mesi-labially torsion; made the second premolars and the first molars buccal tip, intruse, distal upright and mesi-labially torsion. With the angle of upper accentuated-curve archwires increased, all tooth movement tendency increased; while with the height of free traction hook increased, all tooth movement tendency decreased.

CONCLUSIONWhen the angle of upper accentuated-curve archwires increased, the extent of molar intrusion increased, but when the height of free traction hook increased, the degree of molar intrusion decreased. The degree of molar intrusion was minimum using 5 degrees upper accentuated-curve archwires cooperated with 5.5 mm free traction hook.

Bicuspid ; Bone Screws ; Finite Element Analysis ; Humans ; Incisor ; Maxilla ; Molar ; Periodontal Ligament ; Tooth ; Tooth Movement Techniques

Objective To explore the dose of template-assisted ¹⁹²Ir source hypofractionated stereotactic brachytherapy (SABT) for peripheral lung cancer. Methods We retrospectively analyzed the dose parameters of GTV and OARs of 28 peripheral lung cancer patients treated with template-assisted ¹⁹²Ir-source hypofractionated SABT, and compared the dose parameters between SABT with virtual SBRT. Results The D_mean and V₁₅₀ for the GTV in the SABT plan were significantly higher than those in the SBRT plan (all P < 0.01). For OARs, all dosimetric parameters in the SABT plan were significantly lower than those in the SBRT plan (all P < 0.01), except for the D_1000cm³ and D_1500cm³ for the lung (P > 0.05). Conclusion Template-assisted ¹⁹²Ir source hypofractionated SABT ensures high dose in the gross tumor volume and reduces the dose in organs at risk in the treatment of peripheral lung cancer.

Objective To investigate health-related quality of life (HRQOL) and influencing factors in adult patients with Kashin-Beck disease (KBD) in Shaanxi Province for improving health-related quality of life of KBD patients.Methods By the two-stage cluster random sampling method,data of 901 cases of KBD patients with the disease severity of grade 1 and higher were collected from higher KBD incidence areas of Baoji,Xianyang and Tongchuan in Shaanxi Province in February 2016.The Chinese version of SF-36 (including 8 dimensions:physical functioning,role-physical,bodily pain,general health,vitality,social functioning,role-emotional,mental health) was used to measure the HRQOL.Multiple linear regression was used to analyze the influencing factors of HRQOL.Results In 901 cases of KBD patients,male accounted for 55.49％ (500/901),female accounted for 44.51 (401/901).The median age of patients was 58 (22-83) years old.According to the severity of disease criteria,patients with grade Ⅰ were 37.18％ (335/901),patients with grade Ⅱ were 53.50％ (482/901) and patients with grade Ⅲ] were 9.32％ (84/901).The scores of each dimension of SF-36 scale in patients of male patients had higher scores in GH and MH than women [GH:35 (25,50) vs 30 (20,45),MH:56 (48,72) vs 56 (44,68),.9 ＜ 0.05].There were significant differences in PF,RP,BP,GH,VT and SF scores among different age groups (P ＜ 0.05).Similarly,there were significant differences in PF,RP,GH,VT,SF,RE and MH scores among patients with different educational levels (P ＜ 0.05).Married group was only higher in the PF and SF scores than other marital status groups [PF:55 (40,75) vs 50 (35,65),SF:62 (50,75) vs 50 (38,75),P ＜ 0.05].As expected,there were significant differences in the scores of PF,BP,GH and SF between the severity of diseases.There were also significant differences in the scores of PF,BP,GH,VT,SF and MH in KBD patients from different regions (P ＜ 0.05).According to multiple linear regression analysis results,male was the conservation factor of GH and MH scores compared with female;age was a risk factor for PF,RP,BP,GH,VT and SF scores;compared with the illiterate,primary school education was a protective factor for PF and RE scores,junior high school and above were PF,RP,VT,SF,RE and MH scores protective factors;compared with degree Ⅰ KBD,degree Ⅱ and degree Ⅲ were risk factors for PF,BP,GH and SF scores;compared with Baoji area,Xianyang area was a protective factor of SF score,however,Tongchuan area was a protective factor for PF,GH,VT,SF and MH scores.Conclusions KBD has severely damaged the HRQOL of patients.Priority should be given to age,educational attainment and severity of the disease for developing measures to improve KBD patients' HRQOL in different regions.

Objective To investigate the level of perceived social support and its influencing factors in Kashin-Beck disease (KBD) patients in Shaanxi Province,and to provide a theoretical basis for improving the service to KBD patients.Methods By the two-stage cluster random sampling method,KBD patients with the severity of disease of grade Ⅰ and above were investigated in Baoji,Xianyang and Tongchuan areas in Shaanxi Province,which were higher incidence areas of KBD.The Chinese version of perceived social support scale (PSSS) was used to measure family support,friend support,and other supportive comprehension social support levels by household survey method,the total score of PSSS is low support state from 12 to 36,intermediate support state from 37 to 60,and high support state from 61 to 84,and the effects of gender,age,education level,marital status,occupation,disease severity and region on the level of perceived social support were analyzed.Results In 901 cases of KBD patients,males accounted for 55.49％ (500/901),females accounted for 44.51％ (401/901).The median age of patients was 58 years old.According to the severity of KBD criteria,grade Ⅰ patients were 37.18％ (335/901),grade Ⅱ patients were 53.50％ (482/901) and grade Ⅲ patients were 9.32％ (84/901).The median (quartile) PSSS score was 62 (54,70),the low support status accounted for 8.55％ (77/901),the intermediate support status accounted for 36.96％ (333/901),and the high support status was 54.50％ (491/901).Age was a risk factor for friend support,other support dimensions and total score;compared with illiteracy,primary school education was the protective factor of total score,and junior high school and above education was the protective factor of family support dimension and total score.Compared with Baoji area,Xianyang area and Tongchuan area were the protective factors of family support dimension,other support dimension,and total score.In addition,Xianyang area was also a protective factor of friend support dimension.Conclusion The level of perceived social support of KBD patients in Shaanxi is generally above moderate.Age,education,and regional factors are main factors affecting perceived social support.

Objective To determine the association between serum lipoprotein-associated phospholipase A2 (Lp-PLA2) and early neurological deterioration (END) in patients with acute ischemic stroke (AIS).Methods Two hundred and fifty-five AIS patients diagnosed by MR imaging were recruited between January 2011 and July 2015.The levels of serum Lp-PLA2 and high-sensitivity C-reactive protein (hs-CRP) were assessed right after hospitalization.END was defined as any increase in National Institutes of Health Stroke Scale (NIHSS) scores ≥ 2 in the first 72 h after stroke onset,and the patients were accordingly divided into END group and non-END group.Risk factors associated with END and their clinical data were analyzed by Logistic regression analysis.Results END was observed in 72 of the 255 patients (28.23％).The percentage of female (58.3％ vs.31.3％),smoking ratio (58.3％ vs.31.3％),diabetes mellitus ratio (73.6％ vs.16.9％),prior stroke ratio (44.4％ vs.25.1％),NHISS scores (8 [3] vs.3 [2]),serum Lp-PLA2 level (230.31 ±75.57 μg/L vs.87.60±28.45 μg/L) and hs-CRP level (20.08±8.05 mg/L vs.6.73±3.48 mg/L) in the END group were significantly higher than those in the non-END group (P＜0.05).Multiple Logistic regression analyses indicated that END was positively associated with diabetes mellitus (OR=4.903,95％CI:1.363-17.695,P=0.015),Lp-PLA2 level (OR=1.032,95％CI:1.013-1.043,P=0.000) and hs-CRP level (OR=1.229,95％CI:1.087-1.391,P=0.001) in patients with acute ischemic stroke.Conclusion Serum Lp-PLA2 may predict END in Chinese patients with acute ischemic stroke.

Animals ; Asian Continental Ancestry Group ; Chickens ; China ; epidemiology ; Cytokines ; metabolism ; Genetic Variation ; Genotype ; Humans ; Influenza A Virus, H7N9 Subtype ; classification ; genetics ; pathogenicity ; Influenza A Virus, H9N2 Subtype ; genetics ; Influenza in Birds ; transmission ; virology ; Influenza, Human ; ethnology ; transmission ; virology ; Mice, Inbred BALB C ; Molecular Sequence Data ; Orthomyxoviridae Infections ; metabolism ; mortality ; virology ; Phylogeny ; Seasons ; Survival Rate ; Virulence ; genetics