Objective:To analyse the methord and effects of intermaxillary traction(IMT)screws used in the treatment of jaw frac-ture.Methods:In the treatment of 1 68 cases of jaw fracture IMT screws were used for the restoration of normal and stable occlusion. The screw number,position,traction effect and postoperative complications of the treatment were analysed.Results:705 screws were used in 168 patients,4 screws were used in each of 147 cased (88%),6 in 12(7%),5 in 9(5%).336(47.7%)screws were fixed between the roots of first and second premolar,292(41 .4%)between the roots of canine and first premolar,50 (7.1%)be-tween the roots of second premolar and first molar,27(3.8%)between the other tooth roots.Normal postoperative occlusion relation was achived by the use of screws in 92 cases without traction.Occlusion disharmony or deviation was found in 76 cases by the used of screws and was restored to normlal by 1 4-day traction in 71 cases.The total efficiency of the treatment was 97%.Pain of the mucosa surrounding the screws was observed in 23 cases (1 3.7%).Root damage,traction screw loosening and adjacent tooth dislocation were observed in 1 3(1 .8%),1 1 (1 .6%)and 2(0.3%)cases respectively.Conclusion:For the fixation of IMT screws,the posi-tions between tooth root from canine to first molar were most common and safe.The fixation point should be in 5 ~8mm below the gin-gival margin.Use of 4-6 screws can meet treatment need.

Objective:To study the effects of the surgical treatment of nerve avulsion inside and outside the mandibular cannel.Methods:34 patients with trigeminal neuralgia of the third division,received neurotomy and avulsion of inferior alveolar nerve in the mandibular cannel above the lingual or through the mental foramen,concurrently with the avulsion of buccal nerve.Patients were fol-lowed up for 2-4 years.Results:All the operations were successfully completed,The wounds were well-healed.All patients felt that pain disappeared in the area innervated by inferior alveolar nerve.During the 2-4 years of follow-up,no recurrence was found.Conclusion:Inferior alveolar nerve neurotomy and avulsion in the mandibular cannel is simple,safe and effective in the treatment of trigeminal neuralgia of the third division.

Rhubarb is a traditional Chinese medicine (TCM), wildly used in treating the disease of hyperlipidemia. However, its components are complicated, so that it is still difficult to clear the specific roles of its various components in blood lipids regulation in. So we decide to systematically study the anti- hyperlipidemia mechanism of rhubarb. We integrated multiple databases, based on entity grammar systems model, constructed molecular interaction network between the chemical constituents of rhubarb and hyperlipidemia. The network includes 231 nodes and 638 edges. Thus we infer the interactions of active targets and disease targets to clarify the anti-hyperlipidemia mechanism. And find that rhubarb can promote excretion of cholesterol; inhibit clotting factors and improve blood circulation; inhibit the release of inflammatory cytokines and maintain fat metabolism balance; inhibit cholesterol and triglyceride synthesis; and other ways to achieve lipid-lowering effect. Thus this study provides reference for novel drug development and component compatibility, and also gives a new way for the systematically study of acting mechanism of traditional Chinese medicine.
Animals ; Databases, Factual ; Drugs, Chinese Herbal ; administration & dosage ; chemistry ; Gene Regulatory Networks ; drug effects ; Humans ; Hyperlipidemias ; drug therapy ; genetics ; metabolism ; Hypolipidemic Agents ; administration & dosage ; chemistry ; Lipid Metabolism ; Rheum ; chemistry ; Signal Transduction ; drug effects

Diagnosis, Differential ; Humans ; Parathyroid Glands

OBJECTIVETo observe the effect of Shen warming Pi strengthening method on expressions of serum T cell subsets (C045+%, C03+%, and C04 +/COB+) in diarrhea-predominant irritable bowel syndrome (IBS-0) rats. Methods An IBS-0 rat model was established referring to AL-Chaer's modeling method combined with tail clamp and intragastric administration of sanna leaf. After modeling 30 SO rats were randomly divided into 6 groups according to random digit table, i.e., the model group, the high, middle, low dose Wenshen Jianpi Recipe (WJR) groups, and the Sishen Pill control group, 6 in each group. A normal control group consisting of 6 SO rats were also set up. Rats in high, middle, low dose WJ R groups were administered by gastrogavage with boil-free WJ R at the daily dose of 3. 100, 1. 550, 0. 775 g/kg, respectively. Rats in the Sis hen Pill control group were administered by gastrogavage with boil-free Sis hen Pill at the daily dose of 0. 736 g/kg. Equal volume of normal saline was given by gastrogavage to rats in the model group and the normal control group. All medication lasted for 2 successive weeks. Rats' general state, expressions of T cell subsets (CD45+%, CD3+%, and CD4+ /CDB+) changes were observed.

RESULTSCompared with the normal control group, expressions of CD45+% and CD3+% increased, but CD4+ /CDB+ decreased with statistical difference (P < 0. 05). Compared with the model group, expressions of CD45+% and CD3+% decreased, but CD4+ ICDB+ increased with statistical difference in high, middle, low dose WJR groups, and the Sis hen Pill control group (P <0. 05). Compared with the Sis hen Pill control group, there was statistical difference in all indices except CD45+ value in the low dose SWPSM group (P <0. 05). Compared with the low dose WJ R group, the expression of CD3+% decreased in high and middle dose WJR groups, and the Sis hen Pill control group; CD4+ /CD8+ increased in the Sishen Pill control group and the high dose SWPSM group (all P < 0. 05).

CONCLUSIONSWJR showed better treatment effect. The mechanism of Shen warming Pi strengthening method might be achieved by regulating expressions of CD45+% and CD3+%, and CD4+ /CD8+ ratios.

Animals ; Drugs, Chinese Herbal ; Female ; Irritable Bowel Syndrome ; therapy ; Leukocyte Common Antigens ; metabolism ; Medicine, Chinese Traditional ; Rats ; T-Lymphocyte Subsets ; metabolism

AIM: To investigate the expression of NKG2A,NKG2D and their ligands in pregnancy uterine micro-environment and to probe the function of NKG2A and NKG2D imbalance expression during the immunotolerance at the fetal-maternal boundary.METHODS: Decidual lymphocytes and peripheral lymphocytes were obtained from 30 women during 6-9 weeks of pregnancy who were undergoing selective termination.FACS technology was used to detect NK cells number and NKG2A,NKG2D expression.RT-PCR was used to investigate HLA-E and MICA mRNA in trophoblast tissue.RESULTS: Natural killer cells predominate,accounting for 70% of pregnancy endometrial lymphocytes.FACS results indicated that NKG2A was significantly increased in decidual NK cells as compared with that in peripheral NK cells,accounting for 97.86%?1.75% and 33.35%?10.92%.The difference between them in NKG2A expression was significant(P

Elucidate the mechanism of Eucommiae Cortex in treatment of hypertension, to provide the basis for further research and development of Eucommiae Cortex. Our study using the entity grammar systems inference rules to analyse the interactions of chemical constituents of Eucommiae Cortex and disease target proteins at the molecular level, and got a biological network of Eucommiae Cortex anti-hypertension which inciude 602 nodes and 2 354 edges. We got 3 treatment of hypertension pathways of Eucommiae Cortex by analyzing biological network, that is, by inhibition of vascular remodeling to improve the deterioration of hypertension, reduce activity of polymorphism genetic genes related to essential hypertension, inhibition of carbonic anhydrase 1 to maintain the osmotic pressure, Eucommiae Cortex play the role of anti-hypertension.
Animals ; Antihypertensive Agents ; administration & dosage ; chemistry ; Databases, Factual ; Drugs, Chinese Herbal ; administration & dosage ; chemistry ; Essential Hypertension ; Eucommiaceae ; chemistry ; Gene Regulatory Networks ; drug effects ; Humans ; Hypertension ; drug therapy ; genetics ; metabolism ; Signal Transduction ; drug effects

As regulating the function of the liver and spleen of the famous traditional formula, Sini San is widely used in the treatment of various diseases caused by liver depression and Qi stagnation, and its efficacy is significant clinically. Recently it is discovered that Sini San is effective in the treatment of nervous system diseases such as depression. Furthermore, there is a lot of literature about the effect of Sini San on the molecular mechanism of antidepressant. However, the anti-depression mechanism of Sini San is not very clear, in our present study, based on the auxiliary mechanism elucidation system for Chinese medicine and network pharmacology system to construct the chemical ingredients of the target interactions and disease-related protein of the interaction network. Results show that there are 263 chemical ingredients and 19 corresponding targets of depression in Sini San network. Sini San can anti-depressant effect through G-protein coupled receptor protein signaling pathway, cAMP system, neurological system process and neurotransmitter secretion, inflammatory response, neuroendocrine, metal ion transport and so on. These studies provided valuable clues for the mechanism and treatment of anti-depressant.
Animals ; Antidepressive Agents ; administration & dosage ; chemistry ; Databases, Factual ; Depression ; drug therapy ; genetics ; metabolism ; Drugs, Chinese Herbal ; administration & dosage ; chemistry ; Gene Regulatory Networks ; drug effects ; Humans ; Signal Transduction

OBJECTIVETo investigate the effects and mechanism of cytokine-induced killer (CIK) cells in reversing multidrug resistance (MDR) and increasing intracellular concentration of adriamycin (ADR) in the K562/ADR cells.

METHODSPeripheral mononuclear cells (MNCs) were isolated from healthy donors and cultured with combined cytokines to generate CIK. The changes of cell phenotype and cytokines secretion of CIK were determined. K562/ADR cells were divided into three groups: ADR in combination CIK (group I), CIK alone (group II) and ADR alone (group III). The viability and proliferation of K562/ADR cells were assayed by MTT assay, the intracellular concentration of ADR and the expression of P-glycoproteins (P-gp) in K562/ADR cells by FCM.

RESULTSThe cytotoxicity of ADR in group I was higher than that in group II (P < 0.05). The cytotoxicity was increased with the E/T ratio increasing (P < 0.05) but had no relation with the concentration of ADR in group I (P > 0.05). The expression of P-gp was declined in group I and group II (P > 0.05). The intracellular concentration of ADR in group I was higher than that in group II (P < 0.05), and had no relation with the ADR concentration (P > 0.05).

CONCLUSIONPre-treatment with CIK can increase the cytotoxicity and the intracellular concentration of ADR and decrease the expression of P-gp in K562/ADR cells in the ADR and CIK combination group. Acute leukemia patients would be most likely to benefit from the combination of chemotherapy and CIK therapy.

Antineoplastic Agents ; pharmacology ; Cytokine-Induced Killer Cells ; immunology ; Drug Resistance, Multiple ; immunology ; Drug Resistance, Neoplasm ; immunology ; Humans ; K562 Cells

OBJECTIVEAngiotensin-converting enzyme 2 (ACE-2) has been identified as a functional receptor of severe acute respiratory syndrome coronavirus (SARS-CoV), so its gene was cloned and eukaryotic expressed for further insight into mechanisms in SARS-CoV entry and pathogenesis, as well as development of a safe and reliable neutralization assay for SARS-CoV.

METHODSTotal RNA was extracted from right atrial tissue of a patient with right heart failure resected during a valvular replacement surgery by Trizol one-step method, and the full-length ACE-2 encoding gene was acquired by RT-nested-PCR. The ACE-2 encoding gene was then cloned into pcDNA4/HisMax-TOPO eukaryotic expression vector to construct the recombinant plasmid pcDNA4/ ACE-2, which was then transfected into 293 T cell and ACE-2 eukaryotic transient expression was detected by Western Blot. Syncytia inhibition assay was established to detect SARS-CoV neutralizing antibody, and compared parallelly with SARS pseudovirus neutralization assay.

RESULTSThe recombinant plasmid pcDNA4/ ACE-2 could express ACE-2 protein in eukaryotic cells and induce cell-cell fusion between S protein- and ACE2-expressing cells. This cell-cell fusion assay could be used to detect SARS-CoV neutralizing antibody.

CONCLUSIONSARS-CoV receptor ACE-2 gene was successfully cloned and eukaryotic expressed, and used to establish syncytia inhibition assay for SARS-CoV neutralizing antibody assay.

Animals ; Blotting, Western ; Cell Line ; Cercopithecus aethiops ; Cloning, Molecular ; Gene Expression ; Humans ; Neutralization Tests ; Peptidyl-Dipeptidase A ; genetics ; immunology ; metabolism ; Plasmids ; genetics ; Receptors, Virus ; genetics ; immunology ; metabolism ; Reverse Transcriptase Polymerase Chain Reaction ; SARS Virus ; immunology ; metabolism ; Transfection ; Vero Cells