Objective: A correction factor was proposed to improve the accuracy of dose calculation in conventional radiotherapy when filed matching technique was used. Methods:Use the linear accelerator with independent collimator to implement semi-field irradiation under different equivalent-length field. Measure the dose and compare it with the calculation dose. Obtain a correction factor which change follow the equivalent-length through data fitting. Results:There is relationship to indicate the correction factor increase if the field area enlarge;the calculation dose will be close to the measure dose, and the accuracy will improve by correcting;Conclusion:The clinical dose of semi-field irradiation can be calculated by an equivalent square field technique , and then multiplied by the correction factor. it is a simple method to improve the accuracy of dose calculation in conventional radiotherapy by using semi-filed correction factor when filed matching technique was used.

Objective To find effective measures to reduce blood transfusion reactions through retrospective analysis on adverse reactions of blood transfusion .Methods Statistically analyse the the occurrence of adverse transfusion reactions from Jan .2011 to May 2015 .Results The total adverse transfusion reaction rate was 0 .31% (136/43 874) .The adverse reaction rate of cryoprecipi‐tate infusion was the highest(1 .27% ) in all kinds of blood components infusions ,followed by whole blood(0 .56 % ) ,red blood cell suspension(0 .44% ) ,frozen plasma (0 .32% ) ,platelets (0 .27% ) ,leukocyte -depletion red blood cell suspension (0 .00% ) and washed red blood cell(0 .00% ) .When considering the times of blood transfusion ,the reaction rates of once ,twice ,3 times and ≥4 times were 0 .19% ,0 .27% ,0 .66% and 1 .24% respectively .The incidences of adverse reactions caused by different blood transfu‐sion were statistically significant(P< 0 .05) .60 .29% adverse transfusion reactions happened to people with a history of blood transfusion .The most common adverse transfusion reaction was non-hemolytic reaction which accounted for 62 .50% ,followed by allergic reactions accounting for 33 .09% .Conclusion Leukocyte-depletion red blood cells suspension is proved to be safer ,and could reduce the transfusion reactions .Leukocyte-depletion red cell suspension could benefit the patient who needs blood transfu‐sion more than twice .

Objective: To explore influence of sleep deprivation (SDP) on serum interleukin-1β (IL-1β) level in rats with coronary atherosclerosis (CAS). Methods: A total of 96 healthy SD rats were randomly and equally divided into normal control group, CAS group, SDP group and SDP + CAS group according to number table; rats in CAS group and SDP + CAS group were fed with high cholesterol diet to establish CAS animal model; SDP group and SDP + CAS group received SDP through small platform with water environment. Radioimmunoassay was used to measure serum concentration of IL-1β; and serum concentrations of total cholesterol (TC), triglyceride (TG), high density lipoprotein-cholesterol (HDL-C) and low density lipoprotein-cholesterol (LDL-C) were measured respectively; above indexes were compared among four groups. Results: (1) Compared with serum IL-1β level of normal control group, there were significant increase in SDP group, CAS group and SDP + CAS group[(13.33±3.20) ng/L vs. (14.40±4.41) ng/L vs. (22.21±5.94) ng/L vs. (30.17±7.45) ng/L] (P<0.05～<0.01); (2) Levels of TC, TG and LDL-C in CAS group and SDP + CAS group were significantly higher, level of HDL were significantly less than those of normal control group and SDP group (P<0.05～<0.01), levels of above indexes in SDP + CAS group were significantly higher or less than those of CAS group (P<0.05 all). Conclusion: Sleep deprivation can significantly heighten serum interleukin-1β level and total cholesterol, triglyceride, low density lipoprotein-cholesterol levels, decrease HDL level in rats with coronary atherosclerosis or sleep deprivation.

Objective To access the expression of germ P16 in cervical cancer patients , find out the connection between with the expression in germ of P16 and the prognosis of cervical cancer , and discuss whether P16 can role as an indicator to predict the prognosis. Methods The pathological sections of all 74 cases were tested for the presence of P16 germ , using an immunohistochemistry technique. And the results were analyzed to investigate the value of P16 on the prediction of prognosis of cervical cancer. Results Of all 74 cervical cancer cases, there are 63 cases show positive expression of P16, with the positive expression rate of 85% (63/74). The positive expression of gene P16 is associated with the prognosis of cervical cancer (P = 0.041). The cumulative survival rate for two years of the positive expression set is 85.2%, and the negative set 100%, which is statistically significant (P = 0.043). Positiveexpression of P16 is closely related (P < 0.05) with clinical stages LVSI and interstitial infiltrates, but is irrelevant (P > 0.05) with TNM and histological differentiation. Conclusions We suggest that the expression of germ P16 is closely connected prognosis in cervical cancer , and it might be used as one of indicator to predict the prognosis of cervical cancer.

OBJECTIVETo develop a hydroponic Nicotiana cultivation system for rapid and high-yield transient expression of recombinant proteins under laboratory conditions.

METHODSTo establish the hydroponic cultivation system, several parameters were examined to define the optimal conditions for the expression of recombinant proteins in plants. We used the green fluorescent protein (GFP) and the geminiviral plant transient expression vector as the model protein/expression vector. We examined the impact of Nicotiana species, the density and time of Agrobacterium infiltration, and the post-infiltration growth period on the accumulation of GFP. The expression levels of GFP in Nicotiana leaves were then examined by Western blotting and ELISA.

RESULTSOur data indicated that a hydroponic Nicotiana cultivation system with a light intensity of 9000 LX/layer, a light cycle of 16 h day/8 h night, a temperature regime of 28 degrees celsius; day/21 degrees celsius; night, and a relative humidity of 80% could support the optimal plant growth and protein expression. After agroinfiltration with pBYGFPDsRed.R/LBA4404, high levels of GFP expression were observed in both N. benthamiana and N. tobaccum (cv. Yuyan No.5) plants cultured with this hydroponic cultivation system. An optimal GFP expression was achieved in both Nicotiana species leaves 4 days after infiltration by Agrobacterium with an OD(600) of 0.8. At a given time point, the average biomass of N. tobaccum (cv. Yuyan No.5) was significantly higher than that of N. benthamiana. The leaves from 6-week-old N. benthamiana plants and 5-week-old N. tobaccum (cv. Yuyan No.5) plants could be the optimal material for agroinfiltration.

CONCLUSIONWe have established a hydroponic cultivation system that allows robust growth of N. benthamiana and N. tobaccum (cv. Yuyan No.5) plants and the optimal GFP expression in the artificial climate box.

Gene Expression Regulation, Plant ; Genetic Vectors ; Green Fluorescent Proteins ; biosynthesis ; genetics ; Hydroponics ; methods ; Plants, Genetically Modified ; genetics ; Recombinant Proteins ; biosynthesis ; genetics ; Tobacco ; genetics ; growth & development

Objective:To explore the relationship between weight change and metabolic control of type 2 diabetic patients after 1 year treatment under the standardized metabolic disease management model.Methods:From November 2017 to November 2021, 950 patients with T2DM in the Standardized Metabolic Management Center of Suzhou Municipal Hospital were recruited in this research, who were divided into normal(BMI 18.5-23.9 kg/m 2), overweight(BMI 24.0-27.9 kg/m 2), and obese(BMI≥28 kg/m 2)groups according to baseline BMI. The metabolic indicators and control rates were compared. The overweight and obese 599 patients were divided into weight reduction(<-3 kg), maintenance(-3-1 kg) and gain(>1 kg)groups according to weight changes by one year, and metabolic indicators and control rates were compared to analyze the influence of weight change on metabolic control of overweight and obese patients. Results:(1) The overweight and obese groups had worse metabolic control at baseline and the obese group was younger. After 1 year, the metabolic indicators of three groups were significantly improved. (2) After 1 year, the metabolic control was better in weight reduction group and worse in weight gain group. The control rates were increased in weight reduction and maintenance groups. (3) For every 1 kg reduction in body weight of overweight and obese patients, blood glucose, blood lipids, blood pressure and comprehensive control rate increased by 1.206, 1.046, 1.069 and 1.107 times, respectively. There was a positive linear relationship between weight reduction and metabolic improvement.Conclusion:Standardized metabolic disease management model promotes metabolic control in type 2 diabetic patients, especially in overweight and obese patients who actively lose weight. In the future we should strengthen the management of overweight and obese patients, enhance self-management ability, and manage body weight scientifically and effectively.

OBJECTIVETo summarize the clinical features, imaging characteristics, diagnosis and treatment of a case with central nervous system infection caused by Exophiala dermatitidis, as well as to review the related literature.

METHODAssociated literature and clinical data of an 8-year-old boy who was diagnosed as central nervous system infection caused by Exophiala dermatitidis in Beijing Children's Hospital Affiliated to Capital Medical University and hospitalized twice from 2012 to 2014 were analyzed retrospectively.

RESULTThe boy was 8 years old with the chief complaint of dizziness for 2 months, intermittent fever for 1 month accompanied with spasm twice. He was diagnosed as bile ducts space-occupying lesions 2 years ago, when the pathological diagnosis was fungal infection. The boy was treated with irregular anti-fungal therapy. Then the boy developed nervous symptoms, impaired consciousness and abnormal physical activity that developed gradually. After hospitalization the cerebral MRI of the boy showed space-occupying lesions accompanied with edema of surrounding area. Filamentous fungi was found by brain biopsy, which was culture positive for Exophiala dermatitidis. After diagnosis the boy was treated with amphotericin B (AMB), voriconazole and 5-Fu, as well as symptomatic treatment. The state of the boy was improved gradually. Two months later, the boy could communicate with others normally and move personally. The lesions and edema seen on the MRI was decreased moderately. Accordingly, the boy was treated with oral voriconazole maintenance treatment for about 1 year and 4 months after discharge. During this period, the state of him was stable without symptoms. The lesions shown by MRI did not disappear but decreased on regular examination. However, recently the disease of the boy progressed again, with dizziness, neck pain, headache and progressive nervous symptoms (intermittent spasm, inability to cough, and impaired consciousness). The boy died at last, even with the active treatment at the second hospitalization. Exophiala dermatitidis was culture-positive again in his CSF, and was confirmed by PCR successfully.

CONCLUSIONThe central nervous system infection caused by Exophiala dermatitidis is rare. Clinical features of this disease were similar to those of other fungal CNS infection, cerebral MRI of which could show the similar lumpy lesions. Diagnosis of the disease should be based on pathology and culture.

Amphotericin B ; administration & dosage ; Antifungal Agents ; administration & dosage ; Brain ; diagnostic imaging ; microbiology ; pathology ; Central Nervous System Infections ; diagnosis ; drug therapy ; microbiology ; Cerebrospinal Fluid ; microbiology ; Child ; Drug Therapy, Combination ; Exophiala ; isolation & purification ; Fatal Outcome ; Fluorouracil ; administration & dosage ; Humans ; Magnetic Resonance Imaging ; Male ; Mycoses ; diagnosis ; drug therapy ; microbiology ; Radiography ; Voriconazole ; administration & dosage

Objective To explore the expression and significance of miR-21 in patients with primary gout. Methods The patients were divided into 4 groups: 35 acute gout patients (AG), 50 intermittent gout patients (IG), 25 chronic gout patients (CG) and 39 healthy patients. Their peripheral blood were collected and laboratory indexes were recorded. The expression of miR-21 and Nod-like receptor pyrin domain-containing protein 3 (NLRP3) mRNA in the peripheral blood mononuclear cells (PBMCs) was detected by real-time quantitative polymerase chain reaction (RT-qPCR). The blood and clinical data of another 5 healthy volunteers were collected, their peripheral blood was stimulated with 100 μg/ml monosodium urate (MSU) for 1 hour, pho-sphate buffer (PBS) was used as controls, then the expression of microRNA (miR)-21, NLRP3, interleukin (IL)-1β mRNA was detected by RT-qPCR. Rank sum test and spearman correlation analysis were used for data analysis. Results In primary gout patients, the expression of miR-21 in AG [12 ×10-4 (8.0 ×10-4)], IG [9.4 ×10-4 (6.9 ×10-4)], CG [7.3 ×10-4 (5.6 ×10-4)] was significantly higher than that in healthy control group [1.0×10-4(2.0×10-4)] (Z=9.83, P=0.02], while the expression of NLRP3 in AG[0.0444(0.0233)], IG[0.0581(0.0326)], CG[0.0314(0.0198)] was significantly lower than that in healthy control group [0.0886(0.0359)] (Z=13.82, P<0.01). In the primary gout of IG group, the expression of miR-21 was positively correlated with NLRP3 mRNA (r=0.449, P=0.016). After stimulated by 100 μg/ml MSU, the expression of miR-21 of the stimulated group [8.78×10-4(14×10-4)] was higher than that in the control group [6.25×10-4(6×10-4)](Z=-2.203, P<0.05), and the expression of IL-1βin stimulated group [3.06(2.00)] was higher than that in the control group [2.64 (1.22] (Z=-2.203, P<0.05). The level of miR-21 in patients with primary gout was positively correlated with the level of uric acid (UA), glutamic oxaloacetic transaminase (AST) and glutamic pyruvic transaminase (ALT) (r=0.473, 0.639, 0.487, P<0.05). Conclusion The increase of miR-21 in patients with primary gout may be involved in the inflammatory reaction of gout.