Objective: To extract and identify the chemical constituents in the roots and stems of Tabernaemontana divaricata. Methods: The solvent extraction and silica column chromatography were used to separate the chemical constituents, and their structures were identified by physicochemical properties and spectra analysis. Results: Six compounds were isolated and their structures were identified as his (2, 3-dihydroxypropyl) octacosanedioate (1), tetratriacontanol (2), palmitic acid (3), glycerol monopalmitatel (4), β-sitosterol (5), and β-daucosterol (6). Conclusion: Compound 1 is a new glyceroesters: compounds 2,3 and 4 are isolated from Tabernaemontana genus for the first time.

Objective: To investigate the loneliless situation of the elderly, and explore the relationship between loneliness,filial expectations and intergenerational social support among the elderly. Methods: Using UCLA Loneliness Scale, Intergenerational Social Support and Fealty Expectation Questionnaire, we investigated 423 samples of old people aged 60 ～94 of Changsha City. Results: The mean score of loneliness was 39.8 (s =7.3). Ordinal regression analysis indicated that the loneliness of the elderly was significantly related to received adult children social support (OR=2.208, P=0.006),afforded adult children social support(OR=2.056,P=0.01) and filial expectation(OR=1.872,P=0.027),controlled by age, sex, level of education, marriage, level of family income, and residence status. Filial expectation directly affected loneliness and indirectly affected loneliness through received adult children social support and afforded adult children social support. Conclusion: The loneliness of the elderly are significantly related to filial expectation and intergenerational support.

Objective To study the effect of concentration of TCR-specific antigen peptides on priming naive CD4~+ T cells to develop into Th1/Th2 cells or naive CD8~+ T cells to develop into Tc1/Tc2 cells. Methods TCR-specific peptides with series of concentration were co-cultured with routine spleen DCs to activate murine naive CD4~+/CD8~+ T cells. The production of intracellular cytokines IFN-γand IL-4 were measured by flow cytometry. The dividing profile of activated T cells was analyzed by CFSE staining. Results Lower concentration of specific peptides favored Th2/Tc2 polarization while higher concentration benefited Th1/Tc1 polarization. The influence of peptides concentration on Th cells differentiation is higher than that on Tc cells. Conclusion Antigen peptides can stimulate activation of naive T cells in a wide range of concentration. However, with the increase of peptides concentration, activated T cells differentiated grad-ually from Th2/Tc2 to Th1/Tc1, which will provide significant value to control immunized dose of vaccine candidates in animal experiments.

BACKGROUND:Now it has cooperation and facilitative effete between myogenic regulatory factors through a long time study. So, gene therapy of double genes of Myod1 and Myog can obtain better effect, and can provide a new way for preventing denervated skeletal muscle atrophy.
OBJECTIVE:To construct eukaryotic co-expression vector carrying Myod1 and Myog genes.
METHODS:Ful-length Myod1 gene and Myog gene cDNA were amplified by reverse transcription PCR, and then inserted into pVAX1 vector after digested to establish the recombined Myod1 and Myog eukaryotic co-expression vector pVAX1-Myod1-IRES2-Myog-IRES2-EGFP, and then identified with gene sequencing. The in vitro cultured 3T3 cel s were transfected with pVAX1-Myod1-IRES2-Myog-IRES2-EGFP, and the expressions of Myod1 and Myog genes in the 3T3 cel s were detected with western blot assay in order to identify whether the 3T3 cel s could express the target protein correctly.
RESULTS AND CONCLUSION:The sequencing results showed that the sequence length and base sequence of Myod1 and Myog cDNA in eukaryotic co-expression vector pVAX1-Myod1-IRES2-Myog-IRES2-EGFP were identical with the reported sequences. Myod1 and Myog protein band expressions were detected in 3T3 cel s by western blot after transient transfection. The pVAX1-Myod1-IRES2-Myog-IRES2-EGFP, a eukaryotic co-expression vector of Myod1 gene and Myog gene is successful y constructed.

In the health service field,health resources and health service supple capacity were related with the resource and capacity in economics.Health resources,health service supple capacity and their relationships were important factors for the cooperation and benign interaction of hierarchical medical institutions.However,inversion of health resources and health dislocation of service supply capacity exacerbated the agglomeration degree of patients in the tertiary medical institutions under the impact of residents' freely searching for medical service concept.Vicious interaction and mutual competition among hierarchical medical institutions had become an important obstacle for the implementation of hierarchical medical services.Therefore,its mechanism needed to be clarified while the corresponding policy recommendations should be proposed.

Objective: To extract and identify the chemical constituents in the roots and stems of Tabernaemontana divaricata. Methods: The solvent extraction approach and silica column chromatography were used for separation of the chemical constituents, and their structures were identified by physicochemical properties and spectra analysis. Results: Seven compounds were isolated and their structures were identified as α-amyryn (1), α-amyrin acetate (2), α-amyryl octadecanoate(3), taraxasterol acetate (4), calycosin (5), formononetin (6),and farnisin (7). Conclusion: Compound 1, 3, 4, 5, 6 and 7 are isolated from this plant for the first time, and Compound 3, 4, 5, 6 and 7 are isolated from Tabernaemontan genus for the first time.

OBJECTIVETo investigate the expressions of serine-threonine kinase (Akt)/mammalian target of rapamycin (mTOR)/p70 S6K in oral squamous cell carcinoma (OSCC) and provide references for early diagnosis and prognosis evalua- tion of OSCC.

METHODSA total of 51 cases of OSCC, 10 cases of paracancerous mucosa, and 10 cases of normal oral mucosa were collected. The expressions of Akt/mTOR/p70 S6K in these cases were detected using the SP method of immunohisto- chemistry. The correlation between their expressions in OSCC was also analyzed.

RESULTSThe positive expressions ofp-Akt, p-mTOR, and p70 S6K in OSCC were significantly higher than those in normal oral mucosa and paracancerous mucosa. The expressions of p-Akt, p-mTOR, and p70 S6K in OSCC were not correlated with age, gender, and clinical stage; by comparison, these expressions were correlated with lymph node metastasis and pathological grade. Strong positive correlations were also observed between the expressions ofp-Akt, p-mTOR, and p70 S6K in OSCC.

CONCLUSIONAkt/mTOR/p70 S6K signaling molecules exhibit active expressions in OSCC and may be implicated in the occurrence and development of OSCC.

Aged ; Animals ; Humans ; Mouth Neoplasms ; Neoplasms, Squamous Cell ; Phosphorylation ; Protein Kinases ; Protein-Serine-Threonine Kinases ; Proto-Oncogene Proteins c-akt ; Ribosomal Protein S6 Kinases, 70-kDa ; Signal Transduction ; Sirolimus ; TOR Serine-Threonine Kinases

The evidence-based Guidelines of Clinical Practice with Acupuncture and Moxibustion are based on extesiv evidene of literature an compiled by eperience of experts, so the recommended acupoints present special thoughts and laws of compatibility. It is found the traditional acupoint combination methods predominate, such as distal-local acupoint combination, syndrome differentiation-based acupoints combination and symptom-based acupoints combination, etc., and are combined with research achievements of modern medical science;
Acupuncture Points ; Acupuncture Therapy ; methods ; standards ; Evidence-Based Medicine ; methods ; standards ; Humans ; Practice Guidelines as Topic

The modern statistical and data mining technology is used to analyze the law of the acupoint selection in the treatment of insomnia with acupuncture and moxibustion. The clinical literature on the treatment of insomnia with acupuncture and moxibustion in recent 10 years is collected from China National Knowledge Infrastructure (CNKI). Excel software is applied to establish the database of acupuncture prescriptions for insomnia so as to conduct the descriptive analysis, association rule analysis and clustering analysis on the data. In the treatment of insomnia with acupuncture and moxibustion, Shenmen (HT 7) is of the highest frequency and most acupoints were selected from the Governor Vessel. The commonly used acupoints are located on the head, face, neck and nape region. The combination of the local acupoints with the distal ones is predominated. The crossing points among the specific points present the advantage in the treatment. The association: rule analysis indicates the highest, correlation among Taixi (KI 3), Sishencong (EX-HN 1) and Shenmen (HT 7). The clustering analysis results in 6 effective clusters and 10 pairs of key points and summarizes the common law of the acupoint combination for insomnia. All of these provide the reference to the treatment of insomnia with acupuncture and moxibustion.
Acupuncture Points ; Acupuncture Therapy ; China ; Data Mining ; Databases, Factual ; Humans ; Moxibustion ; Sleep Initiation and Maintenance Disorders ; therapy ; Software

Alzheimer Disease ; metabolism ; therapy ; Amyloid beta-Peptides ; immunology ; metabolism ; Antibodies ; therapeutic use ; Humans ; Immunotherapy