OBJECTIVE:To supply references for the improvement of the essential drug policy of China. METHODS:The pros and cons of present essential drug poliy of China was discussed on the basis of the introduction of the concepts of "essential drug" and "essential drug policy". RESULT & CONCLUSION:The realization of the goal of essential drug policy needs a perfect system of regulations in regard to the selection, production, distribution, pricing and reimbursement of essential drug.

Objective By observing the clinical efficacy of acupuncture plusBu Shen Jie Yu Qing Xin decoction (herbal decoction for tonifying kidney, anti-depression and clearing heart fire) in treating perimenopausal depression, to discuss about the effect of acupuncture plus medication on Hamilton Depression Scale (HAMD), Self-rating Depression Scale (SDS) and hypothalamic-pituitary-ovarian (H-P-O) axis in perimenopausal depression patients.Method By following a completely randomized design, sixty perimenopausal depression patients were divided into a Chinese medication group (Bu Shen Jie Yu Qing Xin decoction) with 30 cases, and an acupuncture-medication group (acupuncture plusBu Shen Jie Yu Qing Xin decoction) with 30 cases, to receive 12-week treatment in total. The HAMD and SDS were estimated prior to the treatment and in the 4th, 8th and 12th weeks; the serum follicle stimulating hormone (FSH), luteinizing hormone (LH), estradiol (E2), testosterone (T), prolactin (PRL), and progesterone (P) contents were detected before and after the treatment.Result Acupuncture plus medication and Chinese medication alone were both effective in treating perimenopausal depression, and the therapeutic efficacy of acupuncture plus medication was superior to that of Chinese medication alone (P<0.05). In the acupuncture-medication group, the HAMD score dropped significantly in the 4th, 8th and 12th weeks compared to that before the treatment, and the score dropped significantly in the 8th and 12th weeks compared to that before the treatment in the Chinese medication group (P<0.01). The HAMD score in the acupuncture-medication group was significantly lower than that in the Chinese medication group in the 4th, 8th and 12th weeks (P<0.01). After the treatment, the items including anxiety, insight, sleep, and despair were significantly changed in the Chinese medication group (P<0.05); 7 items were significantly changed in the acupuncture-medication group (P<0.05). The scores of anxiety, insight, sleep, diurnal-nocturnal, obstruction, and body weight in the acupuncture-medication group were significantly superior to those in the Chinese medication group (P<0.05). The SDS score dropped significantly in the 4th, 8th and 12th weeks in the acupuncture-medication group, and in the 8th and 12th weeks in the Chinese medication group (P<0.01,P<0.05); in the 4th and 8th weeks, the SDS score in the acupuncture-medication group was significantly lower than that in the Chinese medication group (P<0.05), while the between-group difference was statistically insignificant in the 12th week (P>0.05). After 12-week treatment, the contents of FSH and LH declined significantly in both groups (P<0.01, P<0.05), and the contents of E2 and T increased significantly in the acupuncture-medication group (P<0.01,P<0.05). The decrease of FSH and LH, and the increase of E2 were more significant in the acupuncture-medication group (P<0.05,P<0.01).Conclusion Acupuncture plus medication can improve the symptoms of perimenopausal depression, and it takes a faster action than Chinese medication alone. Acupuncture plus medication can mitigate 7 items in HAMD, while Chinese medication can improve anxiety, insight, sleep and despair. Acupuncture plus medication can produce a more significant efficacy in improving anxiety, insight, sleep, diurnal-nocturnal, obstruction, and body weight compared to Chinese medication. For perimenopausal depression, acupuncture plus medication can correct the endocrine disorder and improve depression state by down-regulating the levels of FSH and LH, and up-regulating the contents of E2 and T to improve the function of H-P-O axis.

By using the software CiteSpace Ⅱ,the paper makes a quantitative analysis and interpretation of research literatures on telemedicine in SCIE of Web of Science from three perspectives,namely the research hotspots,knowledge base and research fronts.The research hotspots of telemedicine mainly include tele-diagnosis,tele-monitoring and evaluation of the application effects of telemedicine.It sets forth key literatures representing the knowledge base one by one and reveals that most of them focus on clinical applications.The analysis of burst terms indicates that more attention has been paid to tele-monitoring and distance education of chronic diseases in recent years and mobile technology is one of the greatest driving forces for the development of telemedicine at the present stage.

Objective To establish experimental vascular dementia rat model and evaluate gait behavior . Methods Vascular dementia rat model induced by bilateral carotid artery ligation methods , 50 days for real-time gait behavioral training and testing after surgery .Results Compared with the sham group , Experimental vascular dementia model rats had 19 gait indicators appeared significantly statistical difference , Animal model gait abnormal behavior is mainly reflected in the forelimb step width increased (P <0.05), each foot walk cycle extension (P <0.05), Each foot stance time increased (P <0.05, P <0.01), and the swing time shortened (P <0.05), Homologous coupling shortened (P<0.05), each foot average footprint area and average intensity increased (P <0.05, P <0.01).Conclusion Experimental rat model of vascular dementia in real time gait abnormal behavior and seen in patients with clinical symptoms similar, can provide a reference model for the establishment and judgment .

The method for detecting the negative terms in Chinese electronic medical record (EMR) is useful in providing evidence for constructing concept index. In this respect, we adopted an improved method which combined maximum matching with mutual information in order to extract terms in EMRs. This method can overcome the influence of overlay ambiguity. In addition, for the determination of negative semantic, we also adopted an improved method which combined rule-based method with word co-occurrence. This new method can reduce the probability of appearance of false positive terms caused by punctuation input errors. The result showed that the negative predictive value is 7.85% higher than the rule-based method.
China ; Electronic Health Records ; Probability ; Semantics ; Terminology as Topic

Diabetes mellitus is a chronic disease, it is thus necessary for its patients to participate in its treatment and self-management. The emerging foreign and domestic methods for self-management of diabetes mellitus pa-tients were detected on different Websites and suggestions were proposed for its treatment and self-management in order to improve the quality of life in diabetes mellitus patients.

Objective To evaluate the role of spinal Toll-like receptor 4 (TLR4) signaling pathway in the development of inflammatory pain in rats.Methods Thirty-six adult male Sprague-Dawley rats were divided into 3 groups (n=12 each) using a random number table:control group,inflammatory pain group and TLR4 signaling pathway inhibitor epigallocatechin gallate (EGCG) group (EGCG group).Inflammatory pain was induced by injecting 50 μl of complete Freund's adjuvant (CFA) into the ankle joint cavity of the left hindpaw of rats anesthetized with isoflurane.At 1-3 days after injection of CFA,EGCG 30 μg was intrathecally injected once a day in group EGCG.At 1,3 (30 min after intrathecal injection),5and 7 days after injection of CFA,the mechanical paw withdrawal threshold (MWT) and thermal paw withdrawal latency (TWL) were measured.The ipsilateral L4.5 segments of the spinal cord were removed at 3 days after CFA injcction for determination of TLR4 expression (by Western blot) and contents of tumor necrosis factor-alpha (TNF-oα),interleukin-6 (IL-6) and IL-1β in the spinal dorsal horn (by enzymelinked immunosorbent assay).Results Compared with control group,the MWT was significantly decreased and the TWL was shortened at each time point after injection of CFA,the expression of TLR4 in the spinal dorsal horn was up-regulated,and contents of TNF-α,IL-6 and IL-1β in the spinal dorsal horn were increased in inflammatory pain group (P＜ 0.05),and no significant change was found in the parameters mentioned above in EGCG group (P＞0.05).Compared with inflammatory pain group,the MWT was significantly increased and the TWL was prolonged at each time point after injection of CFA,the expression of TLR4 in the spinal dorsal horn was down-regulated,and contents of TNF-α,IL-6 and IL-1β in the spinal dorsal horn were decreased in EGCG group (P＜0.05).Conclusion Spinal TLR4 signaling pathway is involved in the development of inflammatory pain in rats.

Objective To assess the characteristic of normal tension glaucoma (NTG) patients with mild cogni?tive impairment (MCI). Methods This study included twenty-six cases of normal tension glaucoma patients who were diagnosed at ophthalmology department of Peking University Third Hospital. All the participants were examined by us?ing the scales of Montreal Cognitive Assessment (MoCA), mini-mental state examination(MMSE), clinical dementia rat?ing (CDR), activities of daily living (ADL), Hamilton anxiety scale (HAMA), Hamilton depression scale (HAMD), Pitts?burgh Sleep Quality Index (PSQI) and polysomnography (PSG). The patients were then divided into Group with MCI (16 cases) and Group without MCI (19 cases). Results There was no difference between the two groups in gender, age, edu?cation, depression, anxiety and body mass index (BMI) (P>0.05), but significant difference in MoCA scores (P<0.05). The incidence rate of sleep disorder of PSQI in was 28.6%(10/35 patients) of total NTG patients, 43.8%(7/16 patients) in Group with MCI, and 15.8% (3/19 patients) in Group without MCI, respectively. The PSQI score was higher in Group with MCI than in Group without MCI (P<0.05). Sleep efficiency was higher in Group without MCI than in Group with MCI (P<0.05), but no difference was found between the two groups in six other indexes of PSQI (P>0.05). The in?cidence rate of sleep structure disorder of PSG in all the NTG patients was 85.7%(30/35 patients), 87.5%(14/16 pa?tients) in Group with MCI, and 84.2%(16/19 patients) in Group without MCI. Sleep time of NREM-N3 was significant?ly shorter in Group with MCI than in Group without MCI (P<0.05), but no difference was found between those groups in total sleep time, sleep efficiency, sleep latency and REM time (P>0.05). Conclusion NTG patients with mild cogni?tive impairment are more prone to sleep disorders, especially sleep structure disturbance and short NREM-N3 time may affect cognitive function.

Objective To clarify the effects of Jisuikang on expression levels of BDNF and NGF protein in serum of rats with spinal cord injury;To explore its probable mechanism to improve the axon regeneration microenvironment and resistance spinal cord injury.Methods Ninety SD rats were chosen to establish acute spinal cord injury model through modified Allen's method. 15 rats were chosen randomly as sham-operation group, and the other 75 rats were randomly divided into model group, prednisone group and high-, medium-, and low-doseJisuikang groups. All administration groups were given relevant medicine for gavage, while rats in sham-operation group and model group were given normal saline with the same volume for gavage. The activity and death condition of rats were recorded. Rats were put to death on the 3rd, 7th and 14th d of intervention for carotid artery blood collection. The expressions of BDNF and NGF in serum were detected by ELISA.Results After modeling, the rats in model group showed a typical paraplegia syndrome. 3 day after operation, BDNF showed no statistical significance between model group and prednisone group, while each treatment group showed significant difference when compared with prednisone group (P<0.05,P<0.01). 7 d and 14 d after operation, compared with the model group, BDNF of prednisone group and medium-dose Jisuikang group showed statistical significance, and there was no significant difference between prednisone group and medium-dose Jisuikang group (P<0.05,P<0.01). The expression of NGF in each treatment group at each time point with the prednisone group showed statistical significance. 3 d and 7 d after operation, among prednisone group, high- and medium-doseJisuikang groups, the expression of NGF was significantly higher than model group. 14 d after operation, compared with the model group, the expression of NGF in medium- and low-dose Jisuikang groups and prednisone group still maintained at a relatively high level, with statistical significance (P<0.05,P<0.01).Conclusion Jisuikang can effectively promote the expressions of BDNF and NGF in serum after spinal cord injury and maintained at a relatively high level, so as to improve the microenvironment of axonal regeneration and promote nerve regeneration.

Objective To investigate the alterations and phenotypes of dendritic cells, inflamma-tory monocytes and macrophages in immunocompetent mice during Pneumocystis murina ( P.murina) infec-tion for further analysis of the function of these cells during P.murina infection.Methods Wild type male C57BL/6 mice at age 6-8 weeks were randomly divided into two groups including the group with P.murina infection and the group receiving sham surgery.The mice without any intervention were used to set up the blank control group.The loads of P.murina strains in lung tissues of each mouse were quantified by TaqMan real-time fluorescence polymerase chain reaction after the infection.Histopathological examination was per-formed to evaluate the degree of inflammation in lung tissues.The numbers of dendritic cells, inflammatory monocytes and macrophages in lung tissues, peripheral blood and bone marrow samples, and the changes of inflammatory monocytes in spleen tissues were measured by flow cytometry analysis.The expression of major histocompatability complexⅡ(MHCⅡ), CX3C chemokine receptor 1 (CX3CR1) and CC chemokine re-ceptor 2 ( CCR2 ) by dendritic cells, inflammatory monocytes and macrophages in lung tissues during P.murina infection were analyzed by flow cytometry analysis.All of the data were collected one, two, three and four weeks after the corresponding treatments.Results The loads of P.murina strains in P.murina in-fected mice were elevated after two and three weeks infection, but decline at week 4 (P>0.05).Significant pathological changes including the alveolar destruction, inflammatory cell infiltration and thickened alveolar septum in mice with P.murina infection were observed under a microscope at week 3 and week 4.Compared to the sham surgery treatment group, the number of CD11c+CD11b+dendritic cells were increased in lung tissues, but decreased in blood samples during P.murina infection ( P<0.05) .The levels of inflammatory monocytes in blood samples fell at week 3 and then rose at week 4 during P.murina infection (P<0.05). No significant difference with the change of macrophages in mice was observed during P.murina infection ( P>0.05).The CD11c+CD11b+dendritic cells in lung tissues of mice with P.murina infection expressed high levels of MHCⅡand CX3CR1, and low levels of CCR2.The inflammatory monocytes in lung tissues of mice expressed high levels of CCR2, moderate levels of MHCⅡand low levels of CX3CR1 during P.murina in-fection.High levels of CX3CR1 and low levels of MHCⅡ and CCR2 were observed in macrophages from lung tissues of mice with P.murina infection.Conclusion Highly expressed CD11c+CD11b+dendritic cells and MHCⅡwere detected in lung tissues of mice during P.murina infection, indicating that CD11c+CD11b+dendritic cells were involved in the host defense against P.murina infection.