Objective To determine the effect of individualized oral hygiene instruction (OHI) on volatile sulfur compounds (VSCs) level in mouth air of patients with chronic periodontitis.Methods The individualized oral hygiene instruction was provided for 31 patients with chronic periedontitis (Organoleptic score was over two points).The VSCs and plaque index (PLI) were evaluated pre-OHI and post-OHI.Results The score of PLI decreased from 3.09±0.44 to 2.63±0.46 significandy (P<0.05).The organoleptic score (OS) decreased from 2.68±0.70 to 2.35±0.75 significandy (P<0.05).While there was no significant difference on the VSCs level pre-OHI and post-OHI (P<0.05).Conclusions Individualized oral hygiene instruction is helpful to remove plaque and improve oral hygiene.But the effect of OHI on VSCs level in mouth air is limited.

Objective:To analyze the delays in publication of articles (DPA) in the Journal of Medical Postgraduates(JMP).Methods:According to the corresponding rules for monthly academic journals(national:DPA

Objective:To analyze the delay in the publication of medical postgraduates' research papers and provide them with a guidance for the management of academic articles.Methods:A total of 293 articles were chosen from the Journal of Medical Postgraduates published from 2005 to 2006,of which,229 were original articles and 45 were reviews,including 184 funded and 109 non-funded research papers,and their delay in publication in different periods was statistically analyzed by SPSS13.0 software.Results:The total delay in the publication of the articles was(234.7 ? 116.9) d,including(57.0?36.8) d in manuscript examination,(109.4 ? 96.4) d in editing and(61.8 ? 52.4) d in suspension.The original articles were less delayed than the reviews,(224.2 ? 7.4) d vs(272.8 ? 19.3) d,P

Objective: The theses of postgraduates have their own features and needs for publication.This study investigated the time used at each stage of the production of postgraduates' theses and the influencing factors of their publication.Methods: We conducted a questionnaire investigation among 173 postgraduates on the date of their enrollment,time of theme determination,duration of production,time of submission,and expected time of publication.Results: The theses of the 173 postgraduates were written mainly under the guidance of their supervisors and seniors,with the production duration of 1-9 months.The time between submission and publication was 1-10 months.Conclusion: The limited channels of guidance for postgraduates' theses writing affect the quality of the papers.Lengthened production and suspended contribution conspire to delay the publication of their theses.

Objective The aim of this study was to assess the relationship between the oral health habit and halitosis. It can provide an advisory basis for nurse giving individualized oral health instruction to patients of halitosis and can improve the result of prevention and treatment for halitosis accordingly. Methods 202 patients with periodontal disease were chosen to participate in this study. The study included the questionnaire of oral health habit and the halitosis diagnosis by organoleptic assessment.Comparisons of difference in the knowledge of oral health habit between the subjects with and without halitosis were conducted. Results Brushing times in subjects without halitosis were significantly more than that in subjects with halitosis. Brushing teeth in evening and interproximal brush usage were much better in subjects without halitosis than that in subjects with halitosis,respectively. Conclusions Good oral health habits could decrease the incidence of halitosis.

OBJECTIVE To discuss the risk of tuberculosis infection in a general hospital workers.METHODS In a cross-sectional survey,we studied purified protein derivative(PPD) test in exposure group and control group.(RESULTS) The positive rate of PPD test in the hospital workers was 84.1%,significantly higher than that in(controls)(52.1%,P0.05).The positive PPD in workers of respiratory(department) was 2.95 times higher than in those of other departments.CONCLUSIONS The(environment) of(hospital) is special.Tuberculosis infection threatens the health of hospital workers.So we suggest that hospital workers(improve) self-protective consciousness and actively prevent tuberculosis infection,especially for(internes) and(physicians) with negative PPD.

In view of problems such as non-innovative,useless and non-standard topic in topic-chosen stage of postgraduate of biomedical engineer,the countermeasures are discussed in aspects of aim,standpoint and methods of topic-chosen to improve its scientificity,feasibility and utility,thus providing a good beginning for postgraduates to perform scientific research and apply the result to practice.[Chinese Medical Equipment Journal,2008,29(3):105-106]

Background and purpose:It was reported that erythropoietin may directly or indirectly induce the tumor cells to proliferate and result in diseases progression when recombinant human erythropoictin is used clinically in cancer-related anemia.Recently,the expression of erythropoietin-receptor(Epo-R)was detected in breast cancer.This study was done to detect the expression of Epo-R,estrogen receptor(ER),progesterone receptor(PR)and human epidermal growth factor receptor 2(Her-2)in breast cancer,and to investigate the relationships between these indexes and the clinical significance.Methods:Sixty breast cancer patients were analyzed,the expression of Epo-R and microvascular density(MVD)were detected by immunohistochernistry,in order to clarify the relationships between the expression level of Epo-R,MVD and ER,PR,Her-2.Results:The rate of Epo-R expression was 78.3%,the mean number of positive tumor cells was 39±24,while the tissue MVD was 25±9.The expression level of Epo-R was positively correlated with the MVD.Also,the level of MVD was higher in the group of Epo-R positive than the negative,which has significant difference(t=3.4252,P＜0.001).The expression level of ER,PR has no definite relationships with Epo-R,MVD.The expression level of Her-2 was both closely associated with Epo-R,MVD.The expression level of Epo-R has an obvious relationship with clinical stage,lymph node status and the size(P＜0.001).The value of MVD was positively correlated with lymph node status,while not with clinical stage and the size.Conclusion:The expression level of Epo-R was markedly higher in breast cancer,and has a positive correlation with the tissue MVD.The expression level of Epo-R and MVD were significantly associated with Her-2,but not with ER and PR.It may contribute to clarifying the clinicopathological characteristics and prognosis of breast cancer by detecting both the expression level of Epo-R and MVD.

A total of 30 kunds of fush samples, 5 kunds of shellfush samples and 4 kunds of crustacean samples from the Nansha sea area of chuna were dugested by mucrowave dugestuon system wuth HNO3-H2 O2 as the dugestuon reagent. Then the contents ( ICP-MS determunatuon) and ecologucal chemucal characterustucs of rare earth elements ( REE) were studued. The results showed that the method of mucrowave dugestuon-ICP-MS for the determunatuon of rare earth elements was perfect, and the lunear relatuonshup for each element was good wuth r≥0 . 9997 . The detectuon lumut of the method could reach 1 . 0 ng/L wuth the relatuve standard devuatuon (RSD, n=3) of less than 5. 0%. The recoverues of rare earth elements were between 91. 50% and 106. 67%. The total amount of rare earth un fush samples, shellfush samples and crustacean samples were 5. 02-34. 8 μg/kg, 30. 4-1481 μg/kg and 103-863 μg/kg, respectuvely. The average enruchment contents of the rare earth un the 3 specues was crustacean > shellfush > fush. The contents of 14 rare earth elements un fush/shellfush/crustaceans showed sugnufucantly posutuve correlatuon ( r>0 . 80 ) . The contents of lught rare earth elements ( La-Eu) were hugher than that of heavy rare earth elements ( Gd-Lu) . The lught and heavy rare earth elements had obvuous fractuonatuon, and the REE dustrubutuon pattern was consustent un fush/shellfush/crustacean wuth Gd negatuve anomaly. The δEu values had negatuve anomalues, sumular to the δEu values un correspondung area sedument, and δCe values showed posutuve anomalues, whuch showed that Ce had dufferent process of oxudatuon and reductuon un the organusm and sedument deposutuon. At the same tume, the enruchment relatuonshup of rare earth elements un sedument and organusm was also studued. In thus study, the content and dustrubutuon of rare earth elements un the tropucal marune fush/shellfush/shellfush were analyzed, whuch could provude basuc data for the study of the level and mugratuon and accumulatuon of rare earth elements un the envuronment of the South Chuna Sea.

Objective: To investigate the mechanisms of curative effect of Tongxinluo capsule(通心络胶囊) on patients with coronary artery disease and angina pectoris.Methods: One hundred and twelve cases in accord with the diagnostic criteria of coronary heart disease of World Health Organization(WHO) were(randomly) divided into two groups: treatment group(n=60) and control group(n=52).The patients in both groups were treated with routine therapy including ?receptor retardant and ester of nitric acid etc.(Additionally),the treatment group was treated with Tongxinluo capsules,2 capsules each time and 2 times(per day) for 2 months consecutively.The clinical manifestations before and after treatment,the changes of(electrocardiogram)(ECG),microcirculation of nail bed and hemorrheology were observed in all the patients in both groups.Results: The total clinical effective rate and the rate of total improvement in ECG changes were 86.67% and 80.00% respectively after treatment in the treatment group,and compared with the control group(78.85% and 69.23%) the differences were significant(both P