All-fiber SPR microfluidic chip for GDF11 detection.

In order to perform microfluidic detection of cytokines with low concentration, such as growth differentiation factor 11 (GDF11), the most common method is to construct microfluidic channels and integrate them with SPR sensing units. In this paper, we proposed a novel all-fiber SPR microfluidic chip for GDF11 detection. The method was to construct the SPR sensing area on a designed D-shaped multimode fiber, which was nested inside a quartz tube to form a semi-cylindrical microfluidic channel.

Twisted Fiber Optic SPR Sensor for GDF11 Concentration Detection.

There are few methods and insufficient accuracy for growth differentiation factor 11 (GDF11) concentration detection. In this paper, we designed a twisted fiber cladding surface plasmon resonance (SPR) sensor, which can achieve a high precision detection of GDF11 concentration. The new structure of the fiber cladding SPR sensor was realized by coupling the light in the fiber core to the cladding through fiber thermal fusion twisting micromachining technology; a series of functionalized modifications were made to the sensor surface to obtain a fiber sensor capable of GDF11 specific recognition.

Association of handgrip strength with the prevalence of hypertension in a Chinese Han population.

Objective: Handgrip strength (HGS) exercise has been reported to reduce blood pressure in both hypertensive and normotensive patients. In this study, we evaluated the association of HGS with hypertension in a Chinese Han Population.

Methods: A total of 11,151 subjects mainly consisting of a rural population were recruited with a multi-stage sampling method in Jurong city, Jiangsu Province, China.

The relationship of lung cancer with menstrual and reproductive factors may be influenced by passive smoking, cooking oil fumes, and tea intake: A case-control study in Chinese women.

The aim of this study was to investigate the association of menstrual and reproductive factors with risk of lung cancer in women. Potential etiological clues related to lung cancer in women are identified to inform preventive strategies.Case-control study of 477 newly diagnosed women with lung cancer and 479 age-matched (±2 years) controls.

Elevation of serum uric acid and incidence of type 2 diabetes: A systematic review and meta-analysis.

Objective: Recently, several cohort studies suggested a positive relationship between serum uric acid (SUA) and type 2 diabetes mellitus (T2DM), which is inconsistent with the results of functional research. Our aim was to further evaluate this correlation by conducting a systematic review.

Methods: Computerized literature searches of the Medline database, EMBASE database, and PubMed were used to evaluate the relationship between SUA and T2DM in cohort studies.

[Spatial temporal differentiation of product-based and consumption-based CO2 emissions and balance in the Beijing-Tianjin-Hebei region: an economic input- output analysis].

Distinguishing product-based and consumption-based CO2 emissions in the open economic region is the basis for differentiating the emission responsibility, which is attracting increasing attention of decision-makers'attention. The spatial and temporal characteristics of product-based and consumption-based CO2 emissions, as well as carbon balance, in 1997, 2002 and 2007 of JING- JIN-JI region were analyzed by the Economic Input-Output-Life Cycle Assessment model. The results revealed that both the product- based and consumption-based CO2 emissions in the region have been increased by about 4% annually.

[Comparative analysis of variable region of white spot syndrome virus genome in Penaeus vannamei in Guangxi, China].

Comparative analysis of variable region ORF14/15 genes of white spot syndrome virus (WSSV) genome in Guangxi Penaeus vannamei (P. vannamei) could provide useful information for the evaluation of genetic diversity and genetic evolutionary relationship among WSSV isolates from Guangxi, China and other places. Based on geographical and temporal considerations, 40 WSSV-positive P.

[County scale characteristics of CO2 emission's spatial-temporal evolution in the Beijing-Tianjin-Hebei Metropolitan Region].

CO2 emission spatial distribution is characterized by stages. The study on regional distribution characteristics and evolution can supply important evidence for CO2 emission reduction. Based on CO2 emission data of 128 county areas in the Beijing-Tianjin-Hebei Metropolitan Region (BTHMR) from 1990 to 2009, the spatial pattern and spatial dependence of CO2 emission were discussed by using cartogram and spatial autocorrelation analysis methods.

Breastfeeding and the risk of childhood Hodgkin lymphoma: a systematic review and meta-analysis.

Purpose: Numerous observational epidemiological studies have evaluated associations between breastfeeding and the risk of childhood Hodgkin lymphoma; however, the existing results are inconsistent. We therefore conducted a systematic review and meta-analysis.

Methods: Medical literature was searched in the Pubmed and Embase databases to identify all English-language relevant studies up to April 10, 2013.

Application of parecoxib in post-uvulopalatopharyngoplasty analgesia.

Objective: To investigate the postoperative analgesic effects of parecoxib for uvulopalatopharyngoplasty (UPPP).

Methods: Patients with obstructive sleep apnoea syndrome who underwent UPPP were randomly divided into two groups. In group A, the incision-local block was performed with 5 ml of 0.

[Analysis of 89 amniotic samples using fluorescent in situ hybridization].

Objective: To assess the value of fluorescent in situ hybridization (FISH) for detecting common chromosome aneuploidies in interphase nuclei of amniotic fluid cells.

Methods: Eighty two uncultured amniotic fluid samples and supernatants from 2 successfully and 5 unsuccessfully cultured amniotic fluid samples were analyzed with FISH. Results from standard cytogenetic analysis of 79 uncultured amniotic fluid samples and 2 successfully cultured amniotic fluid samples were compared with FISH results.

Hydrogen sulfide attenuates surgical trauma-induced inflammatory response and cognitive deficits in mice.

Background: It has been increasingly reported that peripheral surgical trauma triggers neuroinflammatory processes associated with postoperative cognitive dysfunction, and that mitigating the neuroinflammatory effects of surgery prevents surgery-induced cognitive dysfunction. Endogenously produced hydrogen sulfide (H2S) has multiple functions in the brain, and an increasing number of studies have demonstrated its anti-inflammatory effects. The present study was designed to investigate the effects of sodium hydrosulfide (NaHS), an H2S donor, on the cognitive impairment of mice as they experience neuroinflammatory changes induced by surgery.

[Energy consumption and GDP growth in Beijing: cointegration and causality analysis].

In this paper, the Johansen cointegration technique and the vector error correction model (VECM) were used to examine the causal relationship between energy consumption (LEC) and gross domestic product (LGDP) for Beijing during the period of 1980 to 2008. Results indicated that LEC and LGDP for Beijing were related by one cointegrating vector and there was a long-run unidirectional causal relationship from GDP to energy consumption. The long-term and short-term elasticity from economy to energy consumption were 0.

[Uncertainty analysis for evaluating methane emissions from municipal solid waste landfill in Beijing].

In order to improve the accurate evaluation of CH4 emissions from municipal solid waste landfill in Beijing, FOD-model and Monte Carlo method were conducted. Based on local data, national data and experts' experience, the uncertainty of FOD-model and parameters' sensitivity analysis were identified. And we quantified effect of various parameters on model output.

[Isolation, purification and composition analysis of water-soluble polysaccharide from Halenia elliptica].

Objective: To provide scientific cue for the use of Halenia elliptica.

Methods: The crude polysaccharide was extracted from Halenia elliptica with hot water and precipitated by ethanol. The crude polysaccharide has been eliminated protein and fractionated by acidic ethanol.

Epigallocatechin gallate inhibits HBV DNA synthesis in a viral replication - inducible cell line.

Aim: To analyze the antiviral mechanism of Epigallocatechin gallate (EGCG) against hepatitis B virus (HBV) replication.

Methods: In this research, the HBV-replicating cell line HepG2.117 was used to investigate the antiviral mechanism of EGCG.

[Progress in research of urban greenhouse gas emission inventory].

Urban areas carry main responsibility for consuming massive energy sources and make great contribution to global anthropogenic greenhouse gas emissions. City and local governments are seen to have a key role in climate mitigation. Hence,one of the important work concerns accounting for city greenhouse gas (GHG) emissions, because it plays significant role in setting reduction targets and evaluating success of local measures.

[Study on the purification and scavenging free radical activity of water soluble polysaccharide from Ligularia hodgsonii].

Objective: The study was to provided the reference for further development and utilization of Ligularia hodgsonii.

Methods: The crude polysaccharide LW was extracted from Lugularia hodgsonii with hot water, and prectated by ethanol. The crude polysaccharide has been fractionted and purified, so LW21 was got.

[Study on the purification and scavenging free radical activity of water soluble polysaccharide of leave in Hippohae rhamnoides L].

The crude polysaccharide was extracted from Leave in Hippohae rhamnoides L. with hot water, and precipitated by ethanol. The crude polysaccharide has been fractionated by acidic ethanol.