Municipal wastewater is usually problematic for the environment. The process of oleaginous microalgal culture requires large amounts of nutrients and water. Therefore, we studied the feasibility of oleaginous microalgal culture of Scenedesmus dimorphus in bubbled column photobioreactor with municipal wastewater added with different nutrients. S. dimorphus could adapt municipal nutrient-rich wastewater by adding some nutrients as nitrogen, phosphorus, ferric ammonium citrate and trace elements, and the amounts of such nutrients have significant effects on cell growth, biomass yield and lipid accumulation. At optimum compositions of wastewater medium, the algal cell concentration could reach 8.0 g/L, higher than that of 5.0 g/L in standard BG11. Furthermore, S. dimorphus had strong capacity to absorb inorganic nitrogen and phosphorus from its culture water. There was almost no total nitrogen and phosphorus residues in culture medium after three or four days culturing when the adding mounts of nitrate and phosphate in wastewater medium were no more than 185.2 mg/L and 16.1 mg/L respectively under the experimental conditions. As a conclusion, it was feasible to cultivate oleaginous microalgae with municipal nutrient-rich wastewater, not only producing feedstock for algal biodiesel, but also removing inorganic nitrogen and phosphorus from wastewater.
Biofuels ; Cities ; Culture Techniques ; methods ; Lipids ; biosynthesis ; Microalgae ; metabolism ; Photobioreactors ; Scenedesmus ; growth & development ; metabolism ; Waste Disposal, Fluid ; methods ; Waste Products

Objective To observe the clinical efficacy of heat-sensitive moxibustion plus point-toward-point needling in treating poststroke strephenopodia.Method Eighty patients with poststroke strephenopodia were randomized into a treatment group intervened by heat-sensitive moxibustion plus point-toward-point needling and a control group intervened by rehabilitation, 40 cases in each group. In addition to the basic treatment, the treatment group was given heat-sensitive moxibustion plus point-toward-point needling, and the control group was given rehabilitation treatment. Holden's Functional Ambulation Classification (FAC), Fugl-Meyer Assessment (FMA) of the lower-limb motor function, and Tinetti Gait Assessment (TGA) were adopted for evaluation of the two groups, and the clinical efficacies were compared.ResultThe effective rate was 90.0% in the treatment group versus 77.5% in the control group, and the difference was statistically significant (P<0.05); after the treatment,there was a significant difference in comparing the Holden's FAC between the two groups (P<0.05); the FMA score changed significantly after the treatment in both groups (P<0.05), and there was a significant difference in comparing the FMA score between thetwo groups after the treatment (P<0.05); the TGA score changed significantly after the intervention in both groups (P<0.05), and there was a significant difference in comparing the TGA score between the two groups after the intervention (P<0.05).ConclusionHeat-sensitive moxibustion plus point-toward-point needling can produce a significant efficacy in treating poststroke strephenopodia, as it can enhance the effective rate and improve the lower-limb motor function.

Objective To evaluate the effect of pretransplant iron overload on the clinical efficacy of allogeneic hematopoietic stem cell transplantation (allo-HSCT) in patients with severe aplastic anemia (SAA). Methods Clinical data of 80 SAA recipients who underwent allo-HSCT for the first time were retrospectively analyzed. According to the incidence of iron overload, all recipients were divided into the iron overload group (n=20) and non-iron overload group (n=60). The engraftment rate, incidence of postoperative complications and clinical prognosis of the recipients afterallo-HSCT were statistically compared between two groups. The influencing factors of 2-year overall survival (OS) and 180 d transplantation related mortality (TRM) were analyzed by Cox proportional hazards regression model. Results The engraftment rate of neutrophils in the non-iron overload group was 98% (59/60), significantly higher than 75% (15/20) in the iron overload group (P < 0.05). The engraftment rate of platelet in the non-iron overload group was 90% (54/60), significantly higher than 65% (13/20) in the iron overload group (P < 0.05). The incidence rate of bloodstream infection in the non-iron overload group was 23% (14/60), remarkably lower than 40% (8/20) in the iron overload group (P < 0.05). The 180 d TRM of the recipients in the non-iron overload group was 17%, significantly lower than 45% in the iron overload group (P < 0.05). The 1- and 2-year OS of the recipients in the non-iron overload group were 82% and 80%, significantly higher than 50% and 44% in the iron overload group (both P < 0.05). Iron overload or not was an independent risk factor of the OS and TRM of the recipients (both P < 0.05). Conclusions Iron overload can affect the OS and TRM of SAA patients after allo-HSCT.

Objective To analyze the epidemiologic and clinical features of post-engraftment blood stream infection (pePSI) after unrelated cord blood transplant (UCBT) in our hospital,and provide the basis for empiric antibacterial treatment.Methods 484 patients with hematological malignancies who received single-unit high intensity myeloablative UCBT in our hospital between April 2011 and November 2017 were enrolled.The incidence,etiology of BSI and associated mortality,drug resistance rate in the post-engraftment phase were investigated.Results Totally 25 episodes of BSI among 22 patients in the post-engraftment phase were documented,and the incidence of peBSI was 5 ％.Gram-negative organisms predominated over Gram positive,with Escherichia coli being the most frequent Gram-negative organism isolated (31.5％).Among Gram positive organisms,methicillin resistant Staphylococcus (MRS) was the most frequent species isolated (66％).Nearly 33％ of Escherichia coli isolates and 60％ Klebsiella pneumonia isolates were carbapenem-resistant.All Grampositive bacteria were sensitive to vaneomyein and linezolid.Among the 22 patients,14 patients were cured and survived (63％) eventually.Conclusion The most frequent causative agents of the peBSI after UCBT were Escherichia coli,Klebsiella pneumonia and MRS,etc.Combined antibacterial treatment including a carbapenem or beta lactamase inhibitor can be used for patients suffering fever in the post-engraftment phase as empiric antibacterial therapy.Vaneomyein and linezolid can be used as the first-line therapy for Gram-positive bacteria.

Objective To explore the imaging biomarker for early diagnosis and disease course monitoring of Parkinson disease (PD) in arterial spin labeling (ASL) technique. Methods Between July, 2014 and May, 2017, 23 patients with PD underwent magnetic resonance imaging (MRI) and ASL examinations in our hospital, including 13 in the early stage and 10 in advanced stages. Voxel-based analysis (VBA) was used to observe the regional cerebral blood flow (rCBF) characteristics in PD patients in different stages and three-dimensional continuous arterial spin labeling (3D CASL) was used to analyze the mean cerebral blood flow (mCBF). Results No significant difference was found in mCBF among PD patients in the early stage, patients in advanced stages and normal control subjects (P=0.30). Compared with the normal control group, the patients with early-stage PD had decreased rCBF in resting state mainly in the right superior occipital gyrus and the right superior frontal gyrus as revealed by VBA (P<0.001);the patients with advanced PD showed decreased rCBF mainly in the left precentral gyrus and the postcentral gyrus (P<0.001). The patients with advanced PD exhibited lowered rCBF in the right substantia nigra and the bilateral corpus callosum as compared with the early-stage patients (P<0.001). Conclusions VBA of ASL reveals rCBF alterations in association with the disease progression in PD patients, suggesting that this technique might provide assistance in identification of potential markers for early PD diagnosis and for monitoring the disease course.

Objective To explore the imaging biomarker for early diagnosis and disease course monitoring of Parkinson disease (PD) in arterial spin labeling (ASL) technique. Methods Between July, 2014 and May, 2017, 23 patients with PD underwent magnetic resonance imaging (MRI) and ASL examinations in our hospital, including 13 in the early stage and 10 in advanced stages. Voxel-based analysis (VBA) was used to observe the regional cerebral blood flow (rCBF) characteristics in PD patients in different stages and three-dimensional continuous arterial spin labeling (3D CASL) was used to analyze the mean cerebral blood flow (mCBF). Results No significant difference was found in mCBF among PD patients in the early stage, patients in advanced stages and normal control subjects (P=0.30). Compared with the normal control group, the patients with early-stage PD had decreased rCBF in resting state mainly in the right superior occipital gyrus and the right superior frontal gyrus as revealed by VBA (P<0.001);the patients with advanced PD showed decreased rCBF mainly in the left precentral gyrus and the postcentral gyrus (P<0.001). The patients with advanced PD exhibited lowered rCBF in the right substantia nigra and the bilateral corpus callosum as compared with the early-stage patients (P<0.001). Conclusions VBA of ASL reveals rCBF alterations in association with the disease progression in PD patients, suggesting that this technique might provide assistance in identification of potential markers for early PD diagnosis and for monitoring the disease course.