BACKGROUNDThis study investigated the relationship between the height of osteotomy and the correction of the kyphotic angle during posterior closing wedge osteotomy with instrumentation and the spinal osteotomy with cage inserting into the intervertebral gap and closing posteriorly by a single posterior approach in thoracolumbar kyphosis, and using this relationship as the basis of the preoperative design.

METHODSFrom April 1996 to June 2007, 30 thoracolumbar kyphosis patients with complete medical records and clear X-ray photograms have undergone operation. Of these 30 cases, 16 cases underwent posterior closing wedge osteotomy with instrumentation while the height of the osteotomy and the correction of the angle have been measured; 14 cases underwent spinal osteotomy with cage inserting into the intervertebral gap and closing posteriorly by a single posterior approach while the height of the osteotomy, the height and the place of the cage and the correction of the angle were also measured. A simple geometrical model was simulated to calculate the relationship between the height of the osteotomy and the correction of the angle and these results are finally compared with the data coming from the actual measuring by the Wilcoxon statistic method.

RESULTSThe distribution of data from the 16 cases by posterior closing wedge osteotomy with instrumentation was as such: 9 male and 7 female, the mean age was 49.2 years (range 38-70), the kyphosis improved from an average of 30 degrees (range 15 degrees-45 degrees) preoperatively to 4 degrees (range -26 degrees-30 degrees) postoperatively, the kyphosis was corrected on average 2.5 degrees per 1 mm in the height of the osteotomy. The results from the simple geometrical model were that the mean of the correction of the angle per 1 mm was 2.2 degrees. As a result, there was no significant difference (P > 0.05) when comparing the measurement collected with the result simulated from the geometric model. The distribution of data from the 14 cases by spinal osteotomy with cage inserting into the intervertebral gap and closing posteriorly by a single posterior approach was as such: 5 male and 9 female, the mean age was 35.3 years old (range 15 - 57), the kyphosis improved from an average of 64 degrees (range 34 degrees-95 degrees) preoperatively to 8.7 degrees (range -10 degrees-22 degrees) postoperatively. The kyphosis was corrected on average of 6.2 degrees per 1 mm in the height of the osteotomy. The results from the simple geometrical model is that the mean of the correction of the angle per 1 mm was 6.6 degrees . There was also no significant difference (P > 0.05) when comparing the measurement collected with the result simulated from the geometric model.

CONCLUSIONSThe therapeutic effect is significant for both posterior closing wedge osteotomy with instrumentation and spinal osteotomy with cage inserting into the intervertebral gap and closing posteriorly by a single posterior approach. The posterior closing wedge osteotomy with instrumentation is an easier approach with the mean angle of the correction per 1 mm of 2.5 degrees and the maximum angle of correction of 45 degrees . The spinal osteotomy with cage inserting into the intervertebral gap and closing posteriorly by a single posterior approach is more efficient with the mean angle of correction per 1 mm of 6.2 degrees . It should be reserved for the severe cases of thoracolumbar kyphosis. We can also use the formula to help us constructing preoperative design.

Adult ; Aged ; Female ; Humans ; Kyphosis ; surgery ; Lumbar Vertebrae ; surgery ; Male ; Middle Aged ; Osteotomy ; Thoracic Vertebrae ; surgery

With the improvement of system frame and reconstruction methods in fluorescent molecules tomography (FMT), the FMT technology has been widely used as an important experimental tool in biomedical research. It is necessary to get the 3D-surface profile of the experimental object as the boundary constraints of FMT reconstruction algorithms. We proposed a new 3D-surface reconstruction method based on Fourier transform profilometry (FTP) method under the blue-purple light condition. The slice images were reconstructed using proper image processing methods, frequency spectrum analysis and filtering. The results of experiment showed that the method properly reconstructed the 3D-surface of objects and has the mm-level accuracy. Compared to other methods, this one is simple and fast. Besides its well-reconstructed, the proposed method could help monitor the behavior of the object during the experiment to ensure the correspondence of the imaging process. Furthermore, the method chooses blue-purple light section as its light source to avoid the interference towards fluorescence imaging.
Algorithms ; Biophysical Phenomena ; Fluorescence ; Fourier Analysis ; Image Processing, Computer-Assisted ; Imaging, Three-Dimensional ; methods ; Surface Properties ; Tomography ; methods

In this paper, the RP-HPLC specific chromatography was adopted, with DIKMA-C18 (4.6 mm x 250 mm, 5 µm) as the chromatographic column, with a gradient elution compose of acetonitrile and 0.1% phosphoric acid at flow rate of 0.8 mL · min(-1), the detection wavelength was 220 nm. The difference of the HPLC specific chromatograms between the Lu Dangshen and other different base sources and different producing area of Codonopsis Radix was compared, involved in the similarities and differences of the number and the relative peak area of characteristic peaks in the HPLC specific chromatograms. The HPLC specific chromatograms of Lu Dangshen was established and the relative retention times of seven peaks was determined, and the peaks of codonopyrrolidium B, syringin, lobetyolin, tangshenoside I and atractylenoide III were identified; The HPLC specific chromatograms of Lu Dangshen provided a method for scientific evaluation and effective control the quality of Lu Dangshen from Shanxi famous-region.
Chromatography, High Pressure Liquid ; methods ; Codonopsis ; chemistry ; Drugs, Chinese Herbal ; analysis ; Glucosides ; analysis ; Phenylpropionates ; analysis ; Plant Roots ; chemistry ; Quality Control

Expression of HLA class Ⅱ antigens(HLA-DR, DQ and DP), interleukin2 receptors(IL-2R) and transferrin receptors(TfR) of blood monocytes from 10 patients with insulin-dependent diabetes meIlitus (IDDM) were assayed with the indirect immune fluorescence technique using corresponding monoclonal antibodies and the FITC-labelled second antibody. The results showed that the number of HLA-DQ~+ monocytes was much more in diabetics than in normal controls. The percentages of HLA-DR~+ and HLA-DP~+ monocytes in diabetics were not different significantly from those in normal controls. Besides, IL-2R~+ and TfR~+ monocytes were also found to be very much increased in diabetics as compared with controls. It was possible that increased expression of HLA-DQ antigen, IL-2R and TfR of monocytes in patients with IDDM might play a role in the pathogenesis of the autoimmune reaction.

OBJECTIVETo explore the diagnostic value of combined modified Alvarado scores (MAS) and computed tomography imaging in the pathological types of acute appendicitis in adults.

METHODSClinical data of a total of 396 adult patients with acute appendicitis confirmed by surgery and pathology were analyzed retrospectively from June 2007 to July 2010. Case-control study was used to investigate the MAS. CT signs were studied in 115 patients who underwent preoperative CT scan. Univariable analysis was performed using each indicator among different pathological types. Discriminant classification was formed by applying significant variables identified from univariable analysis and a Fisher discriminant function was created.

RESULTSTwenty three variables were statistically significant among different pathological types after univariable analysis(P<0.05) and were selected for discriminant analysis. Six variables including temperature(X1), leucocyte count(X2), the proportion of neutrophil(X3), MAS points(X4), periappendiceal fat stranding(X5), and extraluminal air(X6) were enrolled. The discriminant function equation was Y1=0.012X1+0.041X2+0.069X3-0.039X4+2.653X5+1.418X6, Y2=0.327X1+0.041X2-0.034X3-0.140X4-1.114X5+2.982X6. The accuracy was 76.5%(88/115) in retrospective assessment and 77.8%(21/27) in prospective assessment.

CONCLUSIONThe combined use of MAS and CT imaging signs is useful in identifying the pathological types of acute appendicitis in adults, so it is helpful in choosing reasonable therapeutic option for surgeons.

Acute Disease ; Appendicitis ; diagnosis ; Case-Control Studies ; Humans ; Retrospective Studies ; Sensitivity and Specificity ; Tomography, X-Ray Computed

Induction of common knowledge or regularities from large-scale clinical data is a vital task for Chinese medicine (CM). In this paper, we propose a data mining method, called the Symptom-Herb-Diagnosis topic (SHDT) model, to automatically extract the common relationships among symptoms, herb combinations and diagnoses from large-scale CM clinical data. The SHDT model is one of the multi-relational extensions of the latent topic model, which can acquire topic structure from discrete corpora (such as document collection) by capturing the semantic relations among words. We applied the SHDT model to discover the common CM diagnosis and treatment knowledge for type 2 diabetes mellitus (T2DM) using 3 238 inpatient cases. We obtained meaningful diagnosis and treatment topics (clusters) from the data, which clinically indicated some important medical groups corresponding to comorbidity diseases (e.g., heart disease and diabetic kidney diseases in T2DM inpatients). The results show that manifestation sub-categories actually exist in T2DM patients that need specific, individualised CM therapies. Furthermore, the results demonstrate that this method is helpful for generating CM clinical guidelines for T2DM based on structured collected clinical data.
Diabetes Mellitus, Type 2 ; diagnosis ; therapy ; Diagnosis, Differential ; Humans ; Medicine, Chinese Traditional ; Models, Theoretical

OBJECTIVEA pot experiment with variable fertilizer treatments was carried out to study the influence of fertilization on the concentration and accumulation of polyphenols, scopoletin, chrysosplenol-D and chrysosplenetin in roots, stems and leaves and their antioxidant activities. The main aims were to fertilize scientifically in cultivation of Artemisia annua and improve the quality of the harvest organs.

METHODThese active components in leaves, stems and roots in the squaring stage were analyzed by HPLC and antioxidant activities of the extracts were evaluated by ultraviolet visible light colorimetric method.

RESULTThe result showed the highest concentration of polyphenols, scopoletin, chrysosplenol-D and chrysosplenetin was in leaves, followed by stems and the lowest in roots. The antioxidant activities of the leaf extracts correlated positively with the concentrations of polyphenols, scopoletin, chrysosplenol-D and chrysosplenetin. Furthermore, fertilization promoted significantly the growth of A. annua, the biomass was increased by 57.37% (chemical fertilizer), 91.63% (mixture of chemical fertilizer and manure) and 92.27% (manure), respectively, compared to the blank control (without fertilizer). Fertilization, particularly mixture fertilization of chemical fertilizer and manure, increased generally the concentration and accumulation of polyphenols, scopoletin, chrysosplenol-D and chrysosplenetin as well as DPPH x scavenging ratio.

CONCLUSIONScopoletin, chrysosplenol-D and chrysosplenetin could be synthesized and stored mainly in leaves. The leaves might thus be the chief organ of A. annua for medical treatment. Finally, the mixture fertilization of chemical fertilizer and manure should be used to increase the yield and quality of A. annua.

Antioxidants ; analysis ; metabolism ; Artemisia annua ; chemistry ; growth & development ; metabolism ; Fertilizers ; analysis ; Phenols ; analysis ; metabolism ; Plant Leaves ; chemistry ; growth & development ; metabolism ; Plant Roots ; chemistry ; growth & development ; metabolism

OBJECTIVETo study on academic point of view of the book, A General Survey of Moribustion.

METHODSStudy academic thought of the book and clarify academic origin and characteristics of the book.

CONCLUSIONProcessing of argyi leaf, manufacture of mugwort floss and size of moxa cone have a certain technique standards in the book. The book indicates that small cones should be used with more times of moxibustion. and the properties of mugwort floss are not dry and heat, but are warm and moist and mild, moxibustion not only can be used to treat cold syndrome but also can be used to treat heat syndrome; the body can response to the external moxibustion. The above points of view have still guiding significance in nowadays.

Acupuncture Points ; Acupuncture Therapy ; Artemisia ; Books ; Humans ; Moxibustion ; Surveys and Questionnaires

OBJECTIVETo retrospectively analyze the experiences and results of the treatment on 62 patients with primary varicose of lower extremities with endovenous laser.

METHODSAll patients were treated with endovenous laser. The laser treatment could begin when the fiber withdraw with 1 cm/2 s. The laser power was 10 - 12 w with the laser pulse duration and the interval 1 second respectively.

RESULTSThe duration of follow-up varied from 2 months to 8 months. After endovenous treatment, the varicose veins and edema disappeared in all cases. The itching and uncomfortable feeling was dissipated. No morphine-like analgesic has been used and no serious complications occurred.

CONCLUSIONEndovenous laser treatment of primary varicose of lower extremities is a safe and effective technique.

Female ; Follow-Up Studies ; Humans ; Laser Coagulation ; methods ; Male ; Retrospective Studies ; Treatment Outcome ; Varicose Veins ; surgery

OBJECTIVETo investigate the main risk factors associated with intra-abdominal infection(IAI) following gastrectomy in gastric cancer patients.

METHODSCase-control study was used to investigate the clinical data of 1728 gastric carcinoma cases retrospectively by Logistic regressive analysis.

RESULTSUnivariate Logistic regressive analysis showed 16 factors, including age, malnutrition, chronic obstructive pulmonary disease(COPD), diabetes mellitus(DM), heart diseases, prothrombin time, lymphocyte count, tumor size, ascites, invasion to the adjacent organ, neoplasm TNM staging (UICC, 1997), methods of gastrectomy, blood loss, operative time, blood transfusion and extent of lymph nodal dissection,were associated with postoperative intra-abdominal infection. Binary Logistic regression analysis found that extent of lymph nodal dissection(N(2)(+) approximately N(3) and N(2)), invasion to the adjacent organ, DM, operative time, age and lymphocyte count were the independent risk factors associated with mortality.

CONCLUSIONNecessary interventions should be carried out to prevent IAI referring to above risk factors.

Adult ; Aged ; Aged, 80 and over ; Case-Control Studies ; Female ; Gastrectomy ; adverse effects ; Humans ; Logistic Models ; Lymphatic Metastasis ; Male ; Middle Aged ; Neoplasm Staging ; Postoperative Complications ; etiology ; Risk Factors ; Stomach Neoplasms ; microbiology ; pathology ; surgery ; Surgical Wound Infection ; etiology ; Young Adult