Latent Epstein-Barr virus infection status and prognosis in patients with newly diagnosed Hodgkin lymphoma in Southeast China: a single-center retrospective study.

Purpose: This study aimed to investigate the latent Epstein-Barr virus (EBV) infection status of patients with newly diagnosed Hodgkin lymphoma (HL) and to discuss the relationship between tumor cell EBV status and the prognosis of HL patients.

Patients And Methods: A total of 134 previously untreated HL patients were analyzed in the study. Epstein-Barr virus encoded RNAs (EBERs) in situ hybridization was performed to detect the EBV status of tumor cells.

Effects of microRNA-29a on retinopathy of prematurity by targeting AGT in a mouse model.

Background: This study aimed to explore the effects of microRNA-29a (miR-29a) on retinopathy of prematurity (ROP) by targeting angiotensinogen (AGT) expression in a mouse model.

Methods: Ninety-six C57BL/6J mice were selected and divided into the normal control group (n = 12) and the oxygen-induced retinopathy (OIR) group (n = 84). All the mice in the OIR group were assigned to the following seven groups (12 mice in each group): the blank, miR-29a mimics, miR-29a inhibitors, empty plasmid, miR-29a mimics + si-AGT, miR-29a inhibitors + si-AGT and si-AGT groups.

[Inhibition of Denitrification by Total Phenol Load of Coal Gasification Wastewater].

High loaded phenolic pollutants, refractory and high toxic, which existed in coal gasification wastewater, could cause the inhibition of sludge activity. In biological denitrification process of activated sludge treatment system, people tend to focus on the phenol inhibition on the efficiency and activity of nitrifying bacteria while there are few researches on the denitrification process. In order to investigate the inhibition of phenolic compounds from coal gasification wastewater on the denitrification and sludge activity, we used anoxic denitrification system to indentify the influence of different phenol load on denitrification efficiency (removal efficiency of NO₃⁻-N and NO₂⁻-N) as well as the stress and degradation activity of sludge.

Refractive status and optical components of premature babies with or without retinopathy of prematurity at 3-4 years old.

Purpose: To investigate the refractive status and optical components of premature babies with or without retinopathy of prematurity (ROP) at 3-4 years old, and to explore the influence of prematurity and ROP on the refractive status and optical components.

Methods: Premature babies receiving fundus examination were recruited into ROP group and non-ROP group, with age-matched full-term babies as controls.

Results: The incidence of myopia was the highest in ROP (3/59, 5.

[Using Excess Activated Sludge Treated 4-Chlorophenol Contained Waste Water to Cultivate Chlorella vulgaris].

Using different rations of sludge extracts and supernate from 4-Chlorophenol (4-CP) simulated wastewater's excess sludge after centrifugation to cultivate the Chlorella vulgaris to achieve the goal of excess sludge utilization together with chlorella cultivating. The experiments were performed in 500 mL flasks with different rations of sludge extracts & BG-11 and supernate & BG-11 in a light growth chamber respectively. Number of algal cells, Chlorophyll, enzyme activity, oil and water total nitrogen (TN), total phosphorus (TP), total organic carbon (TOC), toxicity index were investigated.

Incidence of retinopathy of prematurity in southwestern China and analysis of risk factors.

Background: The aim of this study was to screen for retinopathy of prematurity (ROP) in southwestern China and understand the prevalence and risk factors of ROP, which may provide evidence useful in the prevention and treatment of ROP.

Material/methods: 1864 preterm infants (gestational age of <37 weeks and birth weight of ≤2500 g) underwent ROP screening from January 2009 to November 2012 in Southwest China. The medical information of infants during perinatal period was reviewed, and risk factors of ROP were determined.

[Research on characteristic of interrelationship between toxic organic compound BPA and Chlorella vulgaris].

The effects of different concentrations of bisphenol A (BPA) on Chlorella vulgaris and removal capacity of BPA by Chlorella vulgaris were investigated. Results showed that a low concentration (0-20 mg x L(-1)) of BPA promoted the growth of Chlorella vulgaris, whereas a relative high concentration (20-50 mg x L(-1)) of BPA inhibited the growth of Chlorella vulgaris, and the inhibition effect was positively correlated with the concentration of BPA. Likewise, a high dose of initial BPA (> 20 mg x L(-1)) led to a decline in the content of chlorephyll a.

[Effects of operating parameters on organic toxicity of sludge treating synthetic bisphenol A wastewater].

In order to investigate the influence of hydraulic retention time (HRT) and sludge retention time (SRT) on sludge organic toxicity in sequencing batch reactors (SBR(S)), the sludge toxicity was compared when HRT and SRT were controlled at various levels. The influents COD were controlled at around 300 mg x L(-1), HRT and SRT were changed from 12 h to 8 h and from 20 d to 10 d, respectively. The effluents COD, BPA contents both in liquid and sludge were measured, and sludge toxicity was also analyzed and compared between the blank group (no BPA content) and BPA control groups (40 mg x L(-1)).

[Research on sludge toxicity caused by DMF biodegradation and toxicity spatial distribution in sludge flocs].

The aerobic sequencing batch activated sludge system (SBR) was used to remove the toxic and refractory organic pollutant, N,N-dimethylformamide (DMF). The formation property and spatial distribution of the organic toxicity in sludge were studied. The operation parameters were controlled as follows: influent COD was about 300 mg x L(-1), every DMF concentration phase lasted 30 d(40 mg x L(-1), 80 mg x L(-1), 120 mg x L(-1)), the SBR cycle lasted 12 h, and DO was 2.

[Effective nitrogen removal in low C/N wastewater with combined aerobic-low DO biofilm treatment process].

The municipal wastewater in China is characterized by low ratio of carbon to nitrogen, which is the key restrictive factor for effective biological removal of nitrogen. In this study, the aerobic-low DO biofilm process was used for the nitrogen removal of municipal wastewater. By means of adjusting inflow ratios of aerobic section to low-DO section, hydraulic retention time (HRT) and inflow ratio of carbon to nitrogen (C/N), the performances of nitrification in aerobic biofilm section and denitrification in low-DO section could be improved, the good performance of nitrogen removal was achieved.

[Dynamic study on the anti-HBs level of immunized children born to HBsAg-positive and HBsAg-negative mothers in hyperendemic area of hepatitis B].

Objective: To investigate the dynamic changes of the anti-HBs level among immunized newborn infants born to HBsAg-positive and HBsAg-negative mothers in hyper-endemic area of Hepatitis B.

Methods: Infants who were regularly vaccinated with Hepatitis B vaccine and tested to be anti-HBs positive were divided into two groups according to HBsAg-positive or negative mothers in Long-an, Guangxi. Each subject was followed up 3 times during age 5 to 8.

[Long-term efficacy of infant hepatitis B immunization program].

Objective: To evaluate the long-term efficacy of infant hepatitis B (HB) immunization program on preventing hepatitis B virus (HBV) infection, and to assess its impact on the incidence of HB in children.

Methods: Since 1986, the universal HB vaccination for newborn babies with standard, pediatric dose had been launched without serologic prescreening of pregnant women for HBsAg, in a high endemic county of Long-An. A hepatitis surveillance system was set up to evaluate the possible impact on the incidence of hepatitis B.