In the present study the nutritional status in 1723 inpatients were evaluated. The over nutrition in male, in the cadre, and in patients with cerebrooardiovascular diseases or with diabetes was significantly higher than that in female, in the staff members, and the patient changing the valve in heart with rheumatism, respectively. The over nutrition in patients with breast and colonrectal cancer was obviously higher than that in stomach carcinoma patients. The sum total of lymphocytes was reduced in middle malnutrition patients. The nutritional status was well compared with the abnormal ratio of hemoglobin and serum protein, and A/G reverse was increased in some middle malnutrition patients. The MAC, MAMC and TSF in all of the malnutrition patients were than that of 80% standarized value, and were all the same in the evaluation of body weight.

The paper dealt with the characterization of polysaccharide of Paecilomyces lilacinus NH-PL-03 strain. First, we extracted and purified exude polysaccharide from the fungal fermentation broth by ethanol depositing method. Second, the proteins were removed by the Sevage method from the crude polysaccharide. Third, the purified polysaccharide (EP-1) was obtained after Superdex G-75 column separation. The results of UV-spectrometer and Sephacryl S-200 HR chromatography experiments showed that the EP-1 was a homogeneous pure polysaccharide with molecular weight of 35.2 kDa. Tested by paper chromatography analysis using the complete hydrolysis by sulfuric acid, we found that the EP-1 comprise single component as glucose. The chemical structure of EP-1 was confirmed as a kind of linear glucan linked by beta-(1,3) linkage. The Congo red reaction performed that EP-1 probable presented a triple-helical conformation in the dilute alkali.
Molecular Structure ; Paecilomyces ; chemistry ; Polysaccharides, Bacterial ; chemistry ; isolation & purification

Objective:To summarize the ultrasound manifestations of lung lesions in patients with coronavirus disease 2019 (COVID-19), and explore the clinical value of ultrasonography in assessing the severity of the disease.Methods:Thirty-one patients with COVID-19 admitted to the Fifth Affiliated Hospital of Sun Yat-sen University from January 18 to February 5, 2020, were selected as the research subjects. All of them underwent dynamic lung ultrasound. Their lung lesions were observed, and the lung ultrasound score (LUS) was performed, respectively. The correlations between the LUS and the disease classification, the LUS and the blood oxygenation index (PaO 2/FiO 2) were analyzed, respectively. The relationship between the corresponding change of clinical classification and the LUS score when it progressed to moderate/severe was analyzed as well. Results:Among the 31 patients with COVID-19, two (6.5%) had no apparent lesions at the ultrasound, with the LUS score of 0. Twenty-nine (93.5%) showed abnormities at the ultrasound, with the LUS score from 1-26, and the main manifestations were B-line signs. Among them 6 (19.4%) had the "white lung signs" , and 13 (41.9%) had pulmonary consolidations. The LUS score was positively correlated with the clinical classification ( r s=0.683 2, P<0.001) and negatively correlated with PaO 2/FiO 2 ( r=-0.864 3, P<0.001). In the initial and dynamic ultrasonography, 13 patients were graded as moderate/severe according to their LUS scores, and the accuracy of the LUS in assessing severe/critical patients was 81.3% (13/16). It was 1-3 days earlier for the LUS progressing to moderate/severe than clinical classification. Conclusions:Pulmonary ultrasound manifestations of patients with COVID-19 have specific characteristics mainly showing as lung interstitial lesions, which can be combined with pulmonary consolidation. Ultrasound can be used in the assessment of the severity of COVID-19 noninvasively and guide clinical treatment.

Objective To quantify the setup errors for the different anatomical sites of patients who received intensity-modulated radiotherapy (IMRT) with linear accelerator on-board kilovolt fan beam CT(kV-FBCT) as non-isocenter IGRT and megavolt cone beam CT (MV-CBCT) as isocenter IGRT. Methods A retrospective analysis was performedon 70 patients who underwent radiotherapy, kV-FBCT, and/or MV-CBCT scans after each routine setup prior to IMRT. The average displacement (M), systematic error (Σ), and random error (б) at different treatment sites in the left-right, anterior-posterior, and cranial-caudal directions were calculated according to the individual displacements. The formula 2.5Σ+0.7б was used to estimate the PTV margin in respective direction. For each single patient, the root mean square in three directions was used as 3D displacement. Results A total of 1130 displacements were recorded in the 70 patients. The PTV margin was estimated to be 1.9-3.1 mm in head and neck cancer, 2.8-5.1 mm in thoracic cancer, 4.6-5.1 mm in breast cancer, 3.0-5.5 mm in upper abdominal cancer, and 3.5-6.8 mm in pelvic tumor. For the 3D mean displacements, the head and neck, thoracic, breast, upper abdominal, and pelvic cancer were 2.4±1.0, 4.0±1.6, 4.1±2.0, 4.6±2.1, and 4.6±2.1 mm, respectively. The average 3D displacement obtained by kV-FBCT and MV-CBCT were 4.1 and 3.4 mm, respectively (P=0.212). Conclusion The quantitative setup-error data can be obtained using linear accelerator on-board FBCT, and the non-isocenter IGRT induced set-up error cannot be negligible.

OBJECTIVES: To coat a zirconia surface with silica-zirconia using a dip-coating technique and evaluate its effect on resin-zirconia shear bond strength (SBS). METHODS: A silica-zirconia suspension was prepared and used to coat a zirconia surface using a dip-coating technique. One hundred and eighty-nine zirconia disks were divided into three groups according to their different surface treatments (polishing, sandblasting, and silica-zirconia coating). Scanning electron microscopy (SEM), energy dispersive X-ray (EDX), and X-ray diffraction (XRD) were used to analyze the differently treated zirconia surfaces. Different primer treatments (Monobond N, Z-PRIME Plus, and no primer) were also applied to the zirconia surfaces. Subsequently, 180 composite resin cylinders (Filtek Z350) were cemented onto the zirconia disks with resin cement (RelyX Ultimate). The SBS was measured after water storage for 24 h or 6 months. The data were analyzed by two-way analysis of variance (ANOVA). RESULTS: SEM and EDX showed that the silica-zirconia coating produced a porous layer with additional Si, and XRD showed that only tetragonal zirconia was on the silica-zirconia-coating surface. Compared with the control group, the resin-zirconia SBSs of the sandblasting group and silica-zirconia-coating group were significantly increased ( CONCLUSIONS Dip-coating with silica-zirconia might be a feasible way to improve resin-zirconia bonding.