Adult ; Chronic Periodontitis ; diagnosis ; diagnostic imaging ; therapy ; Combined Modality Therapy ; Dental Scaling ; Follow-Up Studies ; Furcation Defects ; diagnosis ; diagnostic imaging ; therapy ; Humans ; Male ; Orthodontics, Corrective ; Periodontal Index ; Radiography, Panoramic ; Root Canal Therapy

It is generally accepted that locomotion in mammals, including humans, is based on the activity of neuronal circuits within the spinal cord (the central pattern generator, CPG). Recent studies indicate a plastic behavior of the spinal neuronal circuits following a spinal cord injuries (SCI). Studies have shown that body weight support treadmill training (BWSTT) is effective in restoring locomotor function in cats with a complete spinal lesion. It has become possible to regain some locomotor activity in patients with spinal cord injury through an intense training on BWSTT, as in cat. So, it is a staired problem how to take advantage of the plasticity of spinal locomotor pattern generator and design the gait training program for SCI patients.

ObjectiveTo observe the effect of early rehabilitation on motor function and prognosis of the patients with spinal cord injury (SCI).MethodsAccording to started date of rehabilitation, 60 SCI patients were divided into the early rehabilitation group (within two weeks after operation) and control group (three months after operation) with 30 cases in each group. The motor function and activities of daily living (ADL) of all patients were evaluated before and 3 months after treatment, and the incidence rates of complications of two groups were compared.ResultsAfter 3 months treatment, the incidence rates of complications often occurred after SCI such as pulmonary diseases, urinary infection, osteoporosis and adductor, extensor spasticity in the lower limbs etc. were lower than those in the control group. There was a significant difference between two groups. The motor function and ADL of the patients in the early rehabilitation group were better than those of patients in the control group ( P<0.05～0.01).ConclusionEarly rehabilitation after SCI can significantly decrease the incidence rate of complications and improve patient's motor function and ADL.

ObjectiveTo observe the effect of early rehabilitation on motor function and prognosis of the patients with spinal cord injury (SCI).MethodsAccording to started date of rehabilitation, 60 SCI patients were divided into the early rehabilitation group (within two weeks after operation) and control group (three months after operation) with 30 cases in each group. The motor function and activities of daily living (ADL) of all patients were evaluated before and 3 months after treatment, and the incidence rates of complications of two groups were compared.ResultsAfter 3 months treatment, the incidence rates of complications often occurred after SCI such as pulmonary diseases, urinary infection, osteoporosis and adductor, extensor spasticity in the lower limbs etc. were lower than those in the control group. There was a significant difference between two groups. The motor function and ADL of the patients in the early rehabilitation group were better than those of patients in the control group ( P<0.05～0.01).ConclusionEarly rehabilitation after SCI can significantly decrease the incidence rate of complications and improve patient's motor function and ADL.

Objective To compare the clinical outcomes of rheumatoid arthritis (RA) patients treated with different disease modifying antirheumatic drugs (DMARD) by analysing the clinical data and improve the understanding of different DMARDs.Methods The clinical data of RA patients who were treated and followed-up during Jan.1999 to Mar.2003 in Peking Union Medical College Hospital were retrospectively reviewed.The clinical efficacy and radiotogical changes were compared between patients treated with one DMARD only,2 DMARDs combination and 3 DMARDs combination.The short-term and long-term effects among different dosage regimens in the three groups,and the long-term results of different duration of DMARD treatment were also compared.Resuits Three hundred and twenty-night patients had their clinical and follow-up data available for analysis.Among them,256 patients had DMARDs as their initial treatment.Some of the patients showed eorticosteroid in their treatment regimen while some patients did not have steroid.The clinical effectiveness had no significant difference between patients who had corticosteroid or not.Patients treated with 2 or more DMARDs combination had more improvement in ESR,CRP level,morning stiffness and number of swollen and tender joints compared with one DMARD alone.There was no significant difference in adverse reactions between the 3 groups treated with DMARDs.Conclusion DMARDs combination treatment can significantly and rapidly improve the symptoms and lab parameters in RA.

Objective:To study attachment and proliferation of human periodontal ligment cells(HPDLCs) on demineralized root surface of teeth with periodontitis following EDTA gel application. Methods:44 single-rooted teeth extracted because of severe periodontitis were treated by scaling and root planing(SRP). Then the fragments(5 mm?4 mm) of experimental surfaces were prepared. The fragments were randomly divided into four groups.The root surfaces in group 1,2,3 and 4 were treated by 240 g/L of EDTA gel for 2,3 and 4 min respectively or without treatment(control). Then 1?104 cells were seeded on the surface of each fragment and routinely cultured for 1,3 and 5 days respectively after seeding, the specimens were prepared for microscopic observasion, the cells on the root surfaces were counted. Moreover the other eight fragments were prepared for SEM observasion. Results:HPDLCs attached to and proliferated on all treated surfaces.Group 1, 2 and 3 presented significantly more cells on the root surfaces than the control group did at day 1,3 and 5. The cells on the root surfaces in group 2 and 3 were more than those in group 1 at day 1, 3 and 5. There was no evident difference between group 2 and 3 at any time. The root surfaces in group 2 and 3 had a fibrillar texture associated with an increased diameter of the exposed dentinal tubule openings.Smear layer were observed on root surfaces in group 1. Conclusion:EDTA gel(at 240 g/L) application may enhance attachment and proliferation on root surface of HPDLCs.

Antigens, CD34 ; metabolism ; Craniotomy ; Diagnosis, Differential ; Follow-Up Studies ; Hemangiosarcoma ; metabolism ; pathology ; surgery ; Humans ; Male ; Middle Aged ; Skull ; pathology ; surgery ; Skull Neoplasms ; metabolism ; pathology ; surgery ; Vimentin ; metabolism

To establish induction and liquid culture system for hairy roots of Danshen (Salvia miltiorrhiza), Agrobacterium rhizogenes A4, LBA9402, 15834 as test bacterium were used to infect aseptic leaves of Danshen. The hairy roots were induced and positive transgenic hairy roots were selected with PCR using rolB and rolC as the target gene. Then hairy roots of S. miltiorrhiza were harvested and salvianolic acids were extracted with 70% methanol containing 1% formic acid. The content of salvianolic acid B (SalB) and rosmarinic acid (RA) were determined by HPLC. According to the above research results, the Danshen hairy roots induced by A. rhizogenes LBA9402 were inoculated into the following group of culture media: MSOH, MS, B5, and 6,7-V liquid media. Then the same methods of extraction and determination for the content of Danshen hairy roots were adopted. Last, the hairy roots of S. miltiorrhiza induced by A. rhizogenes LBA9402 were inoculated into the MSOH liquid media with different pH values. The content of salvianolic acid were extracted with 70% methanol containing 1% formic acid and determined by HPLC. As a result, three kinds of A. rhizogenes A4, LBA9402, 15834 could induce hairy roots and Ri plasmids were integrated into the genome of S. miltiorrhiza by PCR. Danshen hairy roots induced by A. rhizogenes LBA9402 and A4 produced much more salvianolic acid, which were (3.27 ± 0.37)% [including (1.04 ±0.36)% of RA and (2.22 ± 0.29)% of SalB] and (3.17 ± 0.20)% [including (0.92 ± 0.31)% of RA and (2.25 ± 0.26)% of SalB], respectively. Hairy roots induced by A. rhizogenes LBA9402 when they were cultured in MSOH liquid media produced much more salvianolic acid, which was (4.56 ± 0.36)%, including (1.12 ± 0.26)% of RA and (3.44 ± 0.23)% of SalB. Hairy roots induced by A. rhizogenes LBA9402 produced the most salvianolic acid when they were cultured in MSOH liquid media with the pH value 4.81, which was 4.85%, including 1.16% of RA and 3.69% of SalB. So Danshen hairy roots induced by A. rhizogenes LBA9402 and A4 produced much more salvianolic acid when they were cultured in MSOH liquid media with the pH value 4.81. The research had established the foundation on genetic engineering to improve the quality of S. miltiorrhiza.
Agrobacterium ; physiology ; Benzofurans ; analysis ; metabolism ; Cell Culture Techniques ; instrumentation ; methods ; Cinnamates ; analysis ; metabolism ; Culture Media ; chemistry ; metabolism ; Depsides ; analysis ; metabolism ; Drugs, Chinese Herbal ; analysis ; metabolism ; Plant Roots ; chemistry ; growth & development ; metabolism ; microbiology ; Salvia miltiorrhiza ; chemistry ; growth & development ; metabolism ; microbiology

Objective To explore the impact of preoperative neoadjuvant chemotherapy on the expressions of multi-drug resistance genes in patients with cervical cancer and its relationship with the effect of chemotherapy. Methods Ninety-eight cervical cancer patients with TP regimen selected to perform preoperative chemotherapy were enrolled in the Affiliated Hospital of Guiyang Medical College between January 2010 and June 2014. Immunohistochemisty (En vision method) was used to determine the expressions of P-gP, GST-π and TopoII of the same patients before and after neoadjuvant chemotherapy and explore the relationship with the effect of chemotherapy. Results The positive expression rates of P-gp and GST-π were 71.43% and 64.29% before chemotherapy and 80.61%and 74.49%after chemotherapy, respectively. The former two had significant differences (P<0.01). The positive expression rates of TopoII was 48.98%before chemotherapy and 28.57%after chemotherapy , respectively, showing significant differences (P < 0.01). The expressions of P-gp, GST-π and TopoⅡ gene were not affected by the clinical and pathological features of cervical cancer (P > 0.05). Before neoadjuvant chemotherapy, the positive expression of GST-π in the ineffective group was statistically higher than that in the effective group (P<0.05). The positive expressions of P-gp and Topo II showed no statistical significance between the effective group and the ineffective group (P > 0.05). There was significant correlation in the expressions of P-gp, GST-π and TopoⅡ(P < 0.05) before and after neoadjuvant chemotherapy. Conclusions The expression of P-gp, GST-πand TopoⅡgene may not be affected by the clinical and pathological features of cervical cancer, but may change expressions of multi-drug resistance genes in cervical cancer by neoadjuvant chemotherapy. Monitoring their expression has a guiding significance for drug selection, prognostic judgment, and the following treatment regimen decision. The GST-π, expression level can be used as a biological parameter to predict the effect of TP regimen neoadjuvant chemotherapy.

Cornea is the major refractive components of the eye. As a viscoelastic tissue, cornea exhibits complicated biomechanical properties: non - linear elasticity, anisotropy and viscoelasticity. The biomechanical properties play an important role in keeping the normal structureand function. Changes in biomechanical properties are always earlier than the clinical symptoms. So quantitative measurement of the biomechanical properties benefits the early diagnosis and treatment of diseases. Different methods to measure the biomechanical properties of cornea were reviewed in detail, including classic ex vivo destructive tests, commercially available in vivo measuring methods and other emerging methods with the potential for clinical application but not validated for in vivo measurement. The operating principles, advantages as well as limitations of these methods were also described.