401
|
Yang C, Qi D, Wang W, Wang P, Yang X, Sa Y, Zhang N, Feng Y. Label-Free Detection of Radiation-Induced Apoptosis in Glioma Cells. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
402
|
Jacob N, Song F, Branstetter A, Zhang N, Lu L, Welliver M, Garzon R, Denko N, Chakravarti A. Circulating MicroRNA Signature of Acute and Late Radiation Toxicities. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
403
|
Guo CC, Huang WH, Zhang N, Dong F, Jing LP, Liu Y, Ye XG, Xiao D, Ou ML, Zhang BH, Wang M, Liang WK, Yang G, Jing CX. Association between IL2/IL21 and SH2B3 polymorphisms and risk of celiac disease: a meta-analysis. GENETICS AND MOLECULAR RESEARCH 2015; 14:13221-35. [PMID: 26535636 DOI: 10.4238/2015.october.26.19] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Celiac disease (CD) is a common autoimmune disorder characterized by heightened immunological response to ingested gluten. Certain gene polymorphisms of IL2/IL21 (rs6822844 and rs6840978) and SH2B3 (rs3184504) may influence susceptibility to CD, although the effects remain unclear. We performed a meta-analysis of the associations between rs6822844, rs6840978, and rs3184504 polymorphisms and CD risk. PubMed, EMBASE, and the China National Knowledge Infrastructure were searched. ORs and 95%CIs of each single nucleotide polymorphism (SNP) were estimated using the fixed-effect model if I(2) < 50% in the test of heterogeneity; otherwise, the random-effect model was used. Our meta-analysis included 12,986 CD cases and 28,733 controls from 16 independent samples, and the analysis of each SNP contained a subset of the total. We found that the minor allele T of both rs6822844 (T vs G, OR = 0.72, 95%CI = 0.67-0.78, P < 0.001) and rs6840978 (T vs C, OR = 0.76, 95%CI = 0.71-0.83, P < 0.001) in IL2/IL21 significantly decreased the risk of CD. However, the minor allele A of rs3184504 (A vs G, OR = 1.18, 95%CI = 1.12-1.24, P < 0.001) in SH2B3 significantly increased CD susceptibility. The estimated lambda values were 0.49, 0.50, and 0.53 for rs6822844, rs6840978, and rs3184504, respectively, suggesting that a co-dominant model of genotype effect was most appropriate for the three SNPs. Our results support associations between the three SNPs and CD and provide a strong argument for further research.
Collapse
|
404
|
Zhang N, Xing M, Wang Y, Tao H, Cheng Y. Repetitive transcranial magnetic stimulation enhances spatial learning and synaptic plasticity via the VEGF and BDNF-NMDAR pathways in a rat model of vascular dementia. Neuroscience 2015; 311:284-91. [PMID: 26518460 DOI: 10.1016/j.neuroscience.2015.10.038] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 09/22/2015] [Accepted: 10/21/2015] [Indexed: 12/13/2022]
Abstract
This study aimed to evaluate the effects of repetitive transcranial magnetic stimulation (rTMS) on learning and memory in a rat model of vascular dementia (VaD) and to analyze the associated mechanisms. Bilateral carotid artery occlusion (2-VO) was used to establish a rat model of VaD. High-frequency (5Hz) rTMS was performed on rats for four weeks. Spatial learning and memory abilities were evaluated using the Morris water maze (MWM), and synaptic plasticity in the hippocampus was assessed via long-term potentiation (LTP). Hippocampal expression of vascular endothelial growth factor (VEGF), brain-derived neurotrophic factor (BDNF) and three subunits of the N-methyl-D-aspartic acid receptor (NMDAR), NR1, NR2A and NR2B, was analyzed by Western blotting. Compared with the VaD group, escape latency was decreased (P<0.05) and the time spent in the target quadrant and the percentage of swimming distance within that quadrant were increased (P<0.05) in the rTMS group. LTP at hippocampal CA3-CA1 synapses was enhanced by rTMS (P<0.05). VEGF expression was up-regulated following 2-VO and was further increased by rTMS (P<0.05). BDNF, NR1 and NR2B expression was decreased in the VaD group and increased by rTMS (P<0.05). There were no significant differences in NR2A expression among the three groups. These results suggest that rTMS improved learning and memory in the VaD model rats via the up-regulation of VEGF, BDNF and NMDARs. In addition, NR2B may be more important than NR2A for LTP induction in the hippocampus during rTMS treatment of VaD.
Collapse
|
405
|
Wang C, Shi Y, Zhang N, Yang Y. Cognitive impairment up to 5years after minor stroke. J Neurol Sci 2015. [DOI: 10.1016/j.jns.2015.08.1478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
406
|
Li Y, Jiang Y, Zhang N, Zhu S. Simultaneous correction of temporomandibular joint ankylosis and secondary dentofacial deformities in adult patients: surgical technique and treatment outcomes. Int J Oral Maxillofac Surg 2015. [DOI: 10.1016/j.ijom.2015.08.665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
407
|
Wu YF, Zheng YP, Zhang N, Liu H, Zheng QX, Yang FT, Wu YF. Study on the correlation between the changes in intra-abdominal pressure and renal functional in the patients with abdominal compartment syndrome. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2015; 19:3682-3687. [PMID: 26502858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To observe the effect on renal function from increased intra-abdominal pressure. PATIENTS AND METHODS Sixty patients with abdominal compartment syndrome (ACS) were included in this study. Intra-abdominal pressure, mean arterial pressure (MAP) and central venous pressure (CVP) were recorded three times per day at a fixed time. Meanwhile, blood samples were collected for serum creatinine measurement and urine volume per hour was recorded. RESULTS The urine volume gradually decreased with the increasing intra-abdominal pressure, from 92. 6 ± 20 ml/h to 27.9 ± 20 ml/h (p < 0. 05), and the serum creatinine increased from 68.4 ± 39.9 mol/L to 249.4 ± 111.5 mol/L (p < 0. 05). The CVP increased from 0.98 ± 0.19 kPa to 1.56 ± 0.31 kPa with the increase or decrease of the MAP. The increase in intra-abdominal pressure was negatively related to the urine volume (r = -0.193, p < 0.05), and positively related to the serum creatinine (r = 0.162, p < 0.05), but not related to the MAP. CONCLUSIONS The increase of intra-abdominal pressure, was closely related to oliguria and increasing serum creatinine. The use of fluid resuscitation and diuretics had few effects on the recovery of the renal function. When the intra-abdominal pressure had decreased, the urine volume increased, and the serum creatinine decreased.
Collapse
|
408
|
Wang Q, Zhang N, Qin W, Li Y, Fu Y, Li T, Shao J, Yang L, Shi FD, Yu C. Gray Matter Volume Reduction Is Associated with Cognitive Impairment in Neuromyelitis Optica. AJNR Am J Neuroradiol 2015; 36:1822-9. [PMID: 26338914 DOI: 10.3174/ajnr.a4403] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Accepted: 03/14/2015] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Whether gray matter impairment occurs in neuromyelitis optica is a matter of ongoing debate, and the association of gray matter impairment with cognitive deficits remains largely unknown. The purpose of this study was to investigate gray matter volume reductions and their association with cognitive decline in patients with neuromyelitis optica. MATERIALS AND METHODS This study included 50 patients with neuromyelitis optica and 50 sex-, age-, handedness-, and education-matched healthy subjects who underwent high-resolution structural MR imaging examinations and a battery of cognitive assessments. Gray matter volume and cognitive differences were compared between the 2 groups. The correlations of the regional gray matter volume with cognitive scores and clinical variables were explored in the patients with neuromyelitis optica. RESULTS Compared with healthy controls (635.9 ± 51.18 mL), patients with neuromyelitis optica (602.8 ± 51.03 mL) had a 5.21% decrease in the mean gray matter volume of the whole brain (P < .001). The significant gray matter volume reduction in neuromyelitis optica affected the frontal and temporal cortices and the right thalamus (false discovery rate correction, P < .05). The regional gray matter volumes in the frontal and temporal cortices were negatively correlated with disease severity in patients with neuromyelitis optica (Alphasim correction, P < .05). Patients with neuromyelitis optica had impairments in memory, information processing speed, and verbal fluency (P < .05), which were correlated with gray matter volume reductions in the medial prefrontal cortex and thalamus (Alphasim correction, P < .05). CONCLUSIONS Gray matter volume reduction is present in patients with neuromyelitis optica and is associated with cognitive impairment and disease severity in this group.
Collapse
|
409
|
Wang Y, Shen J, Cheng J, Zhang N, Wu S, Li J, Mo M, Shen Z, Shao Z, Liu G. 1935 PET/CT might not improve the accuracy of sentinel lymph nodes biopsy and clip-containing nodes dissection to identify candidates for preserving axilla after neoadjuvant chemotherapy in HER2 positive breast cancer. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30884-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
410
|
Luo F, Lu Z, Wang G, Zhang N, Yang J, Wu S, Yang L, Jing X. 309 Study of carrier erythrocyte encapsulated fluorouracil in mice with malignant ascites. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30174-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
411
|
Han X, Zhang N, Yao J, Shi Y. 244 Antitumor effects of a novel histone deacetylase inhibitor (chidamide) on non-small cell lung cancer cell lines. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30130-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
412
|
Zhang N, Becares L, Callery P. PP64 Intergenerational differences in beliefs about healthy eating for left-behind children in rural china: an interview and diary study. Br J Soc Med 2015. [DOI: 10.1136/jech-2015-206256.161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
413
|
Zhang N, Becares L, Chandola T. PP76 Does the timing of parental migration matter for child growth? a life course study on left-behind children in rural china. Br J Soc Med 2015. [DOI: 10.1136/jech-2015-206256.172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
414
|
Shi Y, Tao D, Han X, Yang S, Wu D, Song W, Zhang N. 3013 Identification of genetic alterations in Chinese squamous cell lung carcinomas. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31657-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
415
|
Huang WH, Nie LH, Zhang LJ, Jing LP, Dong F, Wang M, Zhang N, Liu Y, Zhang BH, Chen C, Lin HS, Wei XC, Yang G, Jing CX. Association of TLR2 and TLR4 non-missense single nucleotide polymorphisms with type 2 diabetes risk in a southern Chinese population: a case-control study. GENETICS AND MOLECULAR RESEARCH 2015; 14:8694-705. [PMID: 26345801 DOI: 10.4238/2015.july.31.18] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Toll-like receptors (TLRs), the triggers of the innate and adaptive immune responses, are involved in the pathogenesis of type 2 diabetes mellitus (T2DM). Several studies have investigated the effects of genetic polymorphisms in TLR4 and TLR2, but they have yielded limited results. We investigated whether non-missense genetic polymorphisms in the regulatory regions of TLR4 and TLR2 were related to T2DM in a southern Chinese population. Single nucleotide polymorphisms (SNPs) in TLR4 (rs1927911, rs11536889, rs1927907, rs1927906, rs1927914, rs7873784, and rs2149356) and TLR2 (rs1898830, rs3804099, rs4696480, and rs3804100) were genotyped in 552 T2DM and 552 unrelated age- and gender-matched controls by SNaPShot Multiplex assay. Genotypes GG (OR = 0.09, 95%CI = 0.01- 0.83, P = 0.03) and CG (OR = 0.08, 95%CI = 0.01-0.74, P = 0.03) of the 3'-untranslated region (UTR) SNP rs7873784 in TLR4, and genotype AG (OR = 0.67, 95%CI = 0.46-0.97, P = 0.04) and allele G (OR = 0.88, 95%CI = 0.79-0.97, P = 0.01) of the intron SNP rs1898830 in TLR2 were identified as protective against the development of T2DM in southern Chinese people. In contrast, a meta-analysis of rs1927911 and rs1927914 showed no association. Haplotypes AGTT (OR = 0.34, 95%CI = 0.15-0.77, P = 0.01) and AATT (OR = 1.20, 95%CI = 1.01- 1.44, P = 0.05) in TLR2 were significantly associated with susceptibility to T2DM. Our results suggest that the effects of non-missense polymorphisms located in the regulatory regions of TLR4 and TLR2 should not be neglected in T2DM association analysis.
Collapse
|
416
|
Zhang NN, Lu W, Cheng XJ, Liu JY, Zhou YH, Li F. High-powered microwave ablation of larger hepatocellular carcinoma: evaluation of recurrence rate and factors related to recurrence. Clin Radiol 2015. [PMID: 26220125 DOI: 10.1016/j.crad.2015.06.092] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
AIM To evaluate the safety and efficacy of high-powered (80-100 W) percutaneous microwave ablation (MWA) at a frequency of 2450±10 MHz for treating larger hepatocellular carcinoma (HCC) and to predict the risk factors of local recurrence after high-powered MWA. MATERIALS AND METHODS The study was approved by the Institutional Review Board, and informed consent was waived because of the retrospective study design. Forty-five patients with a total of 60 lesions received high-power (80-100 W) MWA at a frequency of 2450±10 MHz through a percutaneous approach that was guided by ultrasound. Of the 60 lesions with a maximum tumour measuring 3-8 cm, 46 lesions were 3-5 cm and 14 were 5-8 cm. The complete ablation rates, local recurrence rates, complications, and short-term survival were analysed. Ten possible risk factors for local recurrence were analysed. RESULTS The complete ablation rates were 82.61% for the first ablation and 100% for the second ablation for 3-5 cm lesions. The complete ablation rates were 64.29% (82.61% versus 64.29%, p=0.037) for the first ablation and 85.71% (100% versus 85.71%, p=0.055) for the second ablation for 5-8 cm lesions. Local recurrence was observed in 11 out of the 45 (24.44%) successfully treated patients. The 1-year and 2-year survival rates were 95.56% (43/45) and 86.67% (39/45), respectively. No procedure-related mortality was observed and no major bleeding, liver rupture, or liver abscesses occurred. Univariate analysis showed that a positive correlation existed between the number of lesions (p=0.022), proximity to the risk area (p=0.001), pre-ablation alpha-fetoprotein (AFP) levels (p=0.025), hepatitis B virus (HBV)-DNA replication (p=0.027) and local recurrence. Multivariate analysis identified HBV-DNA (p=0.031) and proximity to the risk area (p=0.039) as the independent prognosis factors causing postoperative HCC local recurrence. CONCLUSION High-powered MWA of larger hepatocellular carcinomas appears to be a safe and effective treatment. HBV-DNA and proximity to the risk area appear to be independent predictors of local tumour recurrence.
Collapse
|
417
|
Zhang N, Zhang JW, Yang YH, Li XY, Lin JX, Li ZL, Cheng LY, Wang JF, Mu CS, Wang AX. Effects of lead contamination on the clonal propagative ability of Phragmites australis (common reed) grown in wet and dry environments. PLANT BIOLOGY (STUTTGART, GERMANY) 2015; 17:893-903. [PMID: 25683495 DOI: 10.1111/plb.12317] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Accepted: 01/21/2015] [Indexed: 06/04/2023]
Abstract
Clonal propagation is important for the survival and maintenance of the common reed Phragmites australis. Pot culture experiments were conducted to investigate the effects of lead (Pb) concentration (0, 500, 1500, 3000, 4500 mg·kg(-1) ) and water stress on the clonal reproductive ability of this species. The Pb concentration found in plant organs, in decreasing order, was roots >shoots >rhizomes. There was a negative relationship between the growth of clonal propagative modules (excluding axillary shoot buds) and Pb concentrations, which caused a decrease in biomass, rhizome growth and number of axillary and apical rhizome buds. Daughter axillary shoots exhibited a tolerance strategy, with no significant change in their number; the axillary and apical rhizome buds, daughter apical rhizome shoots and rhizomes exhibited compensatory growth during the late stage of Pb (excluding 4500 mg·kg(-1) ) treatment in a wet environment. Pb applications above 500 mg·kg(-1) reduced these parameters significantly in the drought treatment, except for the number of axillary shoot buds, which did not change. Our results indicate that clonal propagative resistance to Pb contamination can occur via tolerance strategies, compensatory growth and a Pb allocation strategy, enabling these reeds to maintain population stability in wet environments. However, clonal modular growth and reproductive ability were inhibited significantly by the interaction between drought and Pb, which would cause a decline in P. australis populations in a dry environment. Lead concentrations of 4500 and 500 mg·kg(-1) in soils might meet or exceed the Pb tolerance threshold of clonally propagated reeds in wet and dry environments, respectively.
Collapse
|
418
|
Wang Y, Wan FL, Teng YL, Li AJ, Zhang N. Optimization of oligoglycerol fatty acid esters preparation catalyzed by Lipozyme 435. GRASAS Y ACEITES 2015. [DOI: 10.3989/gya.1180142] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
419
|
Gan W, Song Q, Zhang NN, Xiong XP, Wang DMC, Li L. Association between FTO polymorphism in exon 3 with carcass and meat quality traits in crossbred ducks. GENETICS AND MOLECULAR RESEARCH 2015; 14:6699-714. [PMID: 26125879 DOI: 10.4238/2015.june.18.14] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The fat mass and obesity-associated gene (FTO) is an excellent candidate gene that affects energy metabolism. Single nucleotide polymorphisms (SNPs) in FTO are associated with carcass and meat quality traits in pigs, cattle, and rabbits. The aim of this study was to investigate the association between novel SNPs in the FTO coding region and carcass and meat quality traits in 95 crossbred ducks, using DNA sequencing. We found two transitions G/A (SNP 387 and 473) within exon 3. SNP 387 was a synonymous mutation, whereas SNP 473 was a missense mutation. Association analysis suggested that SNP g.387G>A was significantly associated with all of the carcass traits measured, the intramuscular fat content (IMF), cooking yield (CY), pH values 45 min after slaughter (pH45m), drip losses from the breast muscle, and the leg muscle (P < 0.05). For SNP g.473G>A, the genotype AA exhibited greater leg muscle weight than the genotypes GG or AG (P < 0.05). The D value suggested that the two SNPs exhibited strong linkage disequilibrium. Three haplotypes (G1G2, G1A2, and A1A2) were significantly associated with IMF, CY, the a* value, and all of the carcass traits measured (P < 0.05). The results suggest that FTO is a candidate locus that affects carcass and meat quality traits in ducks.
Collapse
|
420
|
Kaur P, Chow V, Zhang N, Markus R. SAT0167 Relationship Between Pharmacokinetics and Anti-Drug Antibody Status of ABP 501, A Biosimilar Candidate to Adalimumab. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4763] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
421
|
Shen J, Zhang N, He B, Liu CY, Li Y, Zhang HY, Chen XY, Lin H. Construction of a GeogDetector-based model system to indicate the potential occurrence of grasshoppers in Inner Mongolia steppe habitats. BULLETIN OF ENTOMOLOGICAL RESEARCH 2015; 105:335-346. [PMID: 25779652 DOI: 10.1017/s0007485315000152] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Grasshopper plagues have seriously disturbed grassland ecosystems in Inner Mongolia, China. The accurate prediction of grasshopper infestations and control of grasshopper plagues have become urgent needs. We sampled 234, 342, 335, and 369 plots in Xianghuangqi County of Xilingol League in 2010, 2011, 2012, and 2013, respectively, and measured the density of the most dominant grasshopper species, Oedaleus decorus asiaticus, and the latitude, longitude, and associated relatively stable habitat factors at each plot. We used Excel-GeogDetector software to explore the effects of individual habitat factors and the two-factor interactions on grasshopper density. We estimated the membership of each grasshopper density rank and determined the weights of each habitat category. These results were used to construct a model system evaluating grasshopper habitat suitability. The results showed that our evaluation system was reliable and the fuzzy evaluation scores of grasshopper habitat suitability were good indicators of potential occurrence of grasshoppers. The effects of the two-factor interactions on grasshopper density were greater than the effects of any individual factors. O. d. asiaticus was most likely to be found at elevations of 1300-1400 m, flat terrain or slopes of 4-6°, typical chestnut soil with 70-80% sand content in the top 5 cm of soil, and medium-coverage grassland. The species preferred temperate bunchgrass steppe dominated by Stipa krylovii and Cleistogenes squarrosa. These findings may be used to improve models to predict grasshopper occurrence and to develop management guidelines to control grasshopper plagues by changing habitats.
Collapse
|
422
|
Han B, Bai Z, Liu Y, You Y, Xu J, Zhou J, Zhang J, Niu C, Zhang N, He F, Ding X. Characterizations, relationship, and potential sources of outdoor and indoor particulate matter bound polycyclic aromatic hydrocarbons (PAHs) in a community of Tianjin, Northern China. INDOOR AIR 2015; 25:320-328. [PMID: 25039922 DOI: 10.1111/ina.12145] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Accepted: 07/17/2014] [Indexed: 06/03/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are among the most toxic air pollutants in China. However, because there are unsubstantial data on indoor and outdoor particulate PAHs, efforts in assessing inhalation exposure and cancer risk to PAHs are limited in China. This study measured 12 individual PAHs in indoor and outdoor environments at 36 homes during the non-heating period and heating period in 2009. Indoor PAH concentrations were comparable with outdoor environments in the non-heating period, but were lower in the heating period. The average indoor/outdoor ratios in both sampling periods were lower than 1, while the ratios in the non-heating period were higher than those in the heating period. Correlation analysis and coefficient of divergence also verified the difference between indoor and outdoor PAHs, which could be caused by high ventilation in the non-heating period. To support this conclusion, linear and robust regressions were used to estimate the infiltration factor to compare outdoor PAHs to indoor PAHs. The calculated infiltration factors obtained by the two models were similar in the non-heating period but varied greatly in the heating period, which may have been caused by the influence of ventilation. Potential sources were distinguished using a diagnostic ratio and a mixture of coal combustion and traffic emission, which are major sources of PAHs.
Collapse
|
423
|
Xu G, Ji C, Song G, Zhao C, Shi C, Song L, Chen L, Yang L, Huang F, Pang L, Zhang N, Zhao Y, Guo X. MiR-26b modulates insulin sensitivity in adipocytes by interrupting the PTEN/PI3K/AKT pathway. Int J Obes (Lond) 2015; 39:1523-30. [PMID: 25999046 DOI: 10.1038/ijo.2015.95] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Revised: 05/06/2015] [Accepted: 05/17/2015] [Indexed: 01/14/2023]
Abstract
BACKGROUND MicroRNAs (miRNAs) have emerged as epigenetic regulators of metabolism and energy homeostasis. There is a growing body of evidence pointing to miRNAs that have important regulatory roles in insulin sensitivity. OBJECTIVE The aim of this work was to explore the expression and mechanism of action of miR-26b in obesity-related insulin resistance (IR) in adipocytes. METHODS Quantitative real-time PCR was performed to determine miR-26b expression in obese rodent models, human obesity subjects and insulin-resistant adipocytes. We analysed the roles of miR-26b overexpression and inhibition on glucose uptake in adipocytes. Western blotting was used to detect the levels of protein molecules involved in the phosphoinositide-3-kinase (PI3K) pathway. Bioinformatics and the Dual Luciferase Assay were used to identify the target gene of miR-26b. We assessed the regulatory roles of miR-26b on the phosphatase and tensin homologue (PTEN)/PI3K/AKT pathway and the relationship between miR-26b and the metabolism of human obese subjects. RESULTS Levels of miR-26b are reduced in visceral adipose tissue (VAT) in obese rodent models, human obesity and insulin-resistant adipocytes. MiR-26b promotes insulin-stimulated glucose uptake and increases insulin-stimulated glucose transporter type 4 translocation to the plasma membrane in human mature adipocytes. MiR-26b modulates insulin-stimulated AKT activation via inhibition of its target gene, PTEN, and significantly increases insulin sensitivity via the PTEN/PI3K/AKT pathway. The expression level of miR-26b negatively correlates with increasing body mass index and homeostasis model assessment for IR in human obese subjects. CONCLUSION Decreased miR-26b expression in VAT may be involved in obesity-related IR by interrupting the PTEN/PI3K/AKT pathway.
Collapse
|
424
|
Cao DH, Mu K, Liu DN, Sun JL, Bai XZ, Zhang N, Qiu GB, Ma XW. Identification of novel compound heterozygous RECQL4 mutations and prenatal diagnosis of Baller-Gerold syndrome: a case report. GENETICS AND MOLECULAR RESEARCH 2015; 14:4757-66. [PMID: 25966250 DOI: 10.4238/2015.may.11.8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Birth defects are structural and/or functional malformations present at birth that cause physical or mental disability and are important public health problems. Our study was aimed at genetic analysis and prenatal diagnosis of congenital anomalies to understand the cause of certain birth defects. Karyotypes and array-comparative genomic hybridization (aCGH) were performed on a pregnant woman, surrounding amniotic fluid, and her husband. A short-stature panel genetic test was conducted in accordance with the phenotype of the fetus. Following examination, it was determined that the karyotype and aCGH results were normal. The RECQL4 gene in the fetus showed compound heterozygous mutations, and each parent was found to be a carrier of one of the mutations. The two heterozygous mutations (c.2059-1G>C and c.2141_2142delAG) were detected in the RECQL4 (NM_004260) gene in the fetus; therefore, the fetus was predicted to have Baller-Gerold syndrome. These two mutations have not previously been reported. In addition, these results identified a 25% risk of the parents having a sec-ond conceptus with this congenital disease. Therefore, prenatal genetic diagnosis was highly recommended for future pregnancies.
Collapse
|
425
|
Jiang PR, Zhang N, Wu YF, Qiu ZL. Effect analysis of nasotracheal suction mechanical ventilation treatment of cerebral ischemic stroke induced by sleep apnea. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2015; 19:1766-1772. [PMID: 26044218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To investigate the difference between the clinical effects of nasotracheal suction (NTS) mechanical ventilation and noninvasive positive pressure ventilation (CPAP) treatment of cerebral ischemic stroke (IS) induced by sleep apnea. PATIENTS AND METHODS Fifty-three patients diagnosed with cerebral IS caused by sleep apnea from February 2013 to February 2014 were selected for this study from our hospital. After the approval of the hospital's Ethics Committee and patients' signed consent, the patients were randomly divided into a test group (n=29 cases) and a control group (n=24 cases). All patients were given conventional treatment for stroke. The control group received the noninvasive ventilator application with CPAP model. The test group was treated with nasal endotracheal suction of mechanical ventilation treatment. Using the NIHSS scale and Barthel index, we compared the status of the nervous system on admission and after seven days stroke recovery treatment of the two groups. Through the comparison of apnea-hypopnea index (AHI), oxygen desaturation index (ODI), LSaO2 and MSaO2 of the two groups on the seventh day, we compared the efficacy of the obstructive sleep apnea-hypopnea syndrome (OSAHS). RESULTS The NIHSS score and Barthel index score of mild, moderate and severe were compared on the OSAHS patients at admission, and the difference was not statistically significant (p > 0.05). After treatment, all patients showed lower NIHSS score and increased Barthel scores, and the difference had statistical significance (p < 0.05). For the mild OSAHS patients, we compared the NIHSS score and Barthel index score of the test and control group, and the difference was not statistically significant (p > 0.05). For the moderate and severe OSAHS patients, the NIHSS score of the test group decreased significantly. However, the Barthel index scores increased significantly, and the difference had statistical significance (p > 0.05). The AHI, LSaO2, MSaO2, and ODI index of the two groups of patients were compared with the treatment, and the differences were not statistically significant (p > 0.05). After treatment, the AHI and the ODI index of the two groups decreased, LSaO2 and MSaO2 index increased, and AHI and ODI index of the test group decreased more than that of the control group. However, the LSaO2 and the MSaO2 index increased, and the difference had statistical significance (p > 0.05). The total effective rate of patients of the test group was higher than that of the control group, but no effectiveness and overall mortality was lower than the control group. The difference was statistically significant (p > 0.05). CONCLUSIONS Compared with noninvasive ventilator therapy, nasotracheal suction mechanical ventilation and noninvasive positive pressure ventilation treatment of cerebral IS induced by sleep apnea can naturally improve the prognosis of nervous system recovery, and improve the respiratory ventilation function. This may be a better treatment option for moderate and severe sleep apnea patients that is worthy of clinical application.
Collapse
|