Periodontitis is a chronic infective disease characterized as the destruction of the supporting tissues of the teeth. Bone marrow mesenchymal stem cells, which are ideal adult stem cells for the regeneration of supporting tissues, may play important roles in restoring the structure and function of the periodontium and in promoting the treatment of periodontal disease. As a consequence, the characteristics, especially osteogenic differentiation mechanism, of these stem cells have been extensively investigated. The regulation of the physiological behavior of these stem cells is associated with BMAL1 gene. This gene is a potential treatment target for periodontal disease, although the specific mechanism remains inconclusive. This study aimed to describe the characteristics of BMAL1 gene and its ability to regulate the osteogenic differentiation of stem cells.
ARNTL Transcription Factors ; genetics ; Adult ; Adult Stem Cells ; Bone Marrow Cells ; physiology ; Cell Differentiation ; Hematopoietic Stem Cells ; Humans ; Mesenchymal Stromal Cells ; physiology ; Osteogenesis ; physiology ; Periodontal Ligament ; Periodontitis ; Periodontium ; Regeneration ; Tooth

AIM: To evaluate the effect of flavored Siwu granules in the clinical adjuvant treatment for phlegm and blood stasis mutual junction retinal vein occlusion.
METHODS: Sixty patients (60 eyes) were randomly divided into treatment group and control group, both with retinal laser photocoagulation and intravitreal injection of triamcinolone acetonide, but the treatment group used flavored siwu granules. Vision, fundus change, fundus fluorescein angiography, clinical syndrome of traditional Chinese medicine ( TCM ), hemorheology examination and safety assessment were evaluated before and 8wk after treatment.
RESULTS: At 8wk after treatment, there were differences on vision improvement, retinal circulation time, whole blood low shear viscosity and total efficient rate of clinical syndrome of TCM, compared with control group(P<0. 05).
CONCLUSION: Flavored siwu granules adjuvant for phlegm and blood stasis mutual junction retinal vein occlusion can improve visual acuity and reduce the eye complications.

Objective To determine the dietary nutritional status of rural residents in Midwestern Shandong Province,in order to improve the dietary pattern and health status of them.Method 11 987 residents,from 10 273 households,were included in this study by multi-stage randomized cluster sampling in 8 counties located in Midwestern Shandong Province.Questionnaire of Food Frequency (QFF) was applied to collect the information about the amount and frequency of food consumed by the subjects in the past year.Results The average intake of cereal,vegetable,fruit,meat,egg,milk,bean,oil and salt per reference man per day was 553.9 g,310.6 g,58.2 g, 36.3 g,50.1 g,16.7 g,34.4 g,44.8 g and 12.3 g,respectively.The average intake of energy,carbohydrate,protein,fat and dietary fiber per reference man per day was 12 095.6 kJ,451.8 g,85.6 g,78.8 g and 18.7 g as well Cereal food provides 66.1% of total energy; however,the meat provides only 6.6% of that.Carbohydrate,protein and fat amount to around 63.2%,12.0% and 24.8% of total energy, respectively.24.0% of fat intake was from animal food,while 76% of that was from vegetable food.Conclusions The intake of energy, protein,fat was sufficient for these subjects;however,the intake of vegetable,fruit,bean and meat was lower than the dietary reference intake.Moreover,oil and salt intake in these subjects was much higher than Chinese Recommended Nutrient Intakes.Thus,the amelioration of dietary pattern in rural residents will be an important task for nutrition workers in rural area of Midwestern part of Shandong Province in the future.

Tautomycin is one of well-known specific protein phosphatase inhibitors and exhibiting potent antifungal ability, especially to Sclerotinia sclerotiolum. This article reviews the recent research progress of tautomycin, focusing on its inhibition region and biosynthesis.

Objective: This study was designed to evaluate the therapeutic efficacy of bronchial arterial infusion with VDS＋ DDP or MMIC＋ ADM＋ DDP in patients with locally advanced nonsmall cell lung cancer(NSCLC). Methods: From June 1992 to October 1998,102 patients with locally advanced NSCLC were enrolled in this study. Of them,8 cases in Stage Ⅱ , 72 cases in Stage Ⅲ a, 22 cases in Stage Ⅲ b, central type: 75 cases,peripheral type:27 cases;preliminary group 64 cases, secondary group 38cases. The patients were treated one to four times by bronchial arterial infusion of the chemical drugs Results: There were 3 complete responses and 66 partial responses for an overall responses rate of 67.65％ (69/102) including responses rate of 72.00％ (54/75) in central type and 55.56％ (15/27), the 1-year and 2-years survival rate was 67.64％ (69/102)and 36.28％ (37/102) respectively. Conclusions: The therapeutic efficacy of bronchial arterial infusion with chemical drugs was excellent to locally advanced non small cell lung cancer, it′ s toxicity were acceptable. The efficacy on central was much better than for peripheral type

To study the contribution of T cell subsets in the pathogenesis of Murine hepatitis virus Type3 (MHV-3) induced chronic viral hepatitis in C3H/Hej mice, ninety C3H/Hej mice were chosen to individually receive 10 plaque forming units (PFU) of MHV-3 intraperitoneally. The changes of virus titer and pathology in liver tissue were examined by standard plaque assay and by the hematoxylin/eosin (HE) staining method from 2 days post MHV-3 infection. The ratios of T cell subsets including CD3+CD4+CD8-, CD3+CD4-CD8+, CD3+CD4-CD8-, CD3+CD4+CD25+, CD3+CD4+CD25- and CD3+CD4-CD25+ T lymphocyte of total T lymphocytes in blood, spleen and liver were examined at 0, 2, 4, 6,8, 10, 12, 15, 20, 25, 30, 40 days post MHV-3 infection by flow cytosorting. We observed that the virus titer raised and showed persistent virus duplications and inflammatory changes in the livers of C3H/Hej mice from 2 days post MHV-3 infection. The double negative T cell (DN Treg cell) and CD4+CD25+ T cell ratios increased significantly from 2 days post MHV-3 infection in C3H/Hej mice, and CD3+CD4+CD8-, CD3+CD4-CD8+, CD3+CD4+CD25- and CD3+CD4-CD25+ T cell ratios decreased accordingly. In conclusion, the changes of virus titer and pathology in the livers of C3H/Hej mice post MHV-3 suggest their contribution to viral persistence. Further characterizations of DN Treg cells are that infection indicates that MHV-3 could induce the chronic inflammation in livers of C3H/Hej mice.The increase of the DN Treg cell and CD4+CD25+ T cell ratios in C3H/Hej mice post MHV-3 infection suggests that DN Treg cells and CD4+CD25+ T cells may both have important suppressive immunomodulation functions in the development of chronic viral hepatitis and have important roles in the virus persistent infection. Further characterizations of DNT cell and CD4+CD25+ T cell are under investigation.

Adolescent ; Adult ; Aged ; Capsules ; Chronic Disease ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Glomerulonephritis ; blood ; drug therapy ; Humans ; Male ; Middle Aged ; Phytotherapy ; Transforming Growth Factor beta ; blood ; Transforming Growth Factor beta1

Mutation (substitution, deletion, insertion, etc.) in nucleotide acid causes the maximal sequence lengths of exact match (MALE) between paralogous members from a duplicate event to become shorter during evolution. In this work, MALE changes between members of 26 gene families from four representative species (Arabidopsis thaliana, Oryza sativa, Mus musculus and Homo sapiens) were investigated. Comparative study of paralogous' MALE and amino acid substitution rate (d(A)<0.5) indicated that a close relationship existed between them. The results suggested that MALE could be a sound evolutionary scale for the divergent time for paralogous genes during their early evolution. A reference table between MALE and divergent time for the four species was set up, which would be useful widely, for large-scale genome alignment and comparison. As an example, detection of large-scale duplication events of rice genome based on the table was illustrated.
Amino Acid Sequence ; Amino Acid Substitution ; Animals ; Arabidopsis ; genetics ; Chromosome Mapping ; methods ; Conserved Sequence ; genetics ; Evolution, Molecular ; Humans ; Mice ; Molecular Sequence Data ; Oryza ; genetics ; Proteome ; genetics ; metabolism ; Sequence Alignment ; methods ; Sequence Analysis, Protein ; methods ; Sequence Homology, Amino Acid ; Species Specificity

Objective To explore the role of toll-like receptor (TLR)/nitric oxide (NO) pathway in cervical tumor with high risk human papillomavirus (hrHPV) infection.Methods (1)Study was based on 36 women with nonmalignantcervical tissue as control group and 36 women with squamous cell cervical cancer (SCC),all with hrHPV infection which were assessed by using 14 types hrHPV E6/E7 mRNA real-time PCR kit.The amount of NO was detected by Griess reaction,the expression of inducible nitric oxide synthase (iNOS) was detected by immunohistochemistry (IHC).The mRNA expression of TLR3,TLR4,TLR7,TLR8,TLR9,nuclear factor-κB (NF-κB) p65 and iNOS in control and SCC epithelium which was captured by laser capture microdissection (LCM) were determined.(2)The expressions of TLR4 in CaSki,HeLa and C33a were detected by cell immunofluorescence method.The mRNA and protein expression of TLR/NO pathway transduction molecules including TLR4,NF-κBp65 and iNOS in CaSki,HeLa and C33a cell lines were detected by real-time PCR and western blot.Results (1)The level of NO was much higher in SCC group than that in control group [(42.92±0.36) μmol/L vs (15.49±0.24) μmol/L;P＜0.05].iNOS was detected in 75％ (27 cases) of patients with squamous cervical carcinoma,while only 6％ (2 cases) of normal controls were confirmed with positve result (P＜0.05).TLR/NO pathway maybe activated in SCC,for the mRNA levels of TLR3,TLR4,TLR7,TLR8,NF-κBp65 and iNOS increased significantly when compared to control group (all P＜0.05),and the greatest change in the expression level of TLR in SCC was spotted on TLR4(7.41±0.39 vs 1.86±0.21).(2)The results of immunofluorescence showed that TLR4 was located at plasma membrance of hrHPV positive HeLa and CaSki cells,while the integral optical density of TLR4 in HeLa cells (3 599±427) or CaSki cells (2 080±456) were higher than that in C33a cells (730±96;P＜0.05).The mRNA and protein level of TLR4,NF-κBp65 and iNOS in HeLa and CaSki cells were higher than those of C33a cells (P＜0.05).Conclusion TLR4/NO pathway is highly expressed in cervical cancer with hrHPV infection,while the pathway may be involved in cervical tumorigenesis with hrHPV infection.

Objective To investigate the efficacy of spectral entropy measurement in reflection of depth of anesthesia and noxious stimulation. Methods Forty-five patients of ASAⅠorⅡ were randomly divided into three groups(n=15).Group A,B and C received fentanyl 1,3 and 5 ?g/kg,respectively,3 min before target controlled infusion(TCI) of propofol.Intubation was performed when the effect-site concentration(CE)reached 3.5 ?g/mL,which was maintained until 5 min after incision.Response entropy(RE),State entropy(SE) as well as heart rate(HR),mean arterial pressure(MAP) were measured at the time points of before fentanyl and 2,3 min after fentanyl,every CE of propofol steps,before intubation,immediately and 1,3,5 min after intubation,before skin incision,and 0.5,1,3,5 min after skin incision,respectively. Results Three minutes after receiving fentanyl,the values of RE and SE in the three groups decreased significantly in a dose-dependent manner,and increased obviously at the same degree during intubation and after skin incision.The values recovered to the level before stress stimulation 1 min after intubation and 5 min after skin incision.There were no differences in the fluctuation of RE and SE among the three groups when the CE of propofol reached 1.0 ?g/mL.Conclusion Spectral entropy may effectively reflect the depth of anesthesia,but not analgesia during anesthesia.