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Zhao R, Ying MF. Association between ERCC1 and ERCC2 polymorphisms and breast cancer risk in a Chinese population. GENETICS AND MOLECULAR RESEARCH 2016; 15:15017263. [PMID: 26985954 DOI: 10.4238/gmr.15017263] [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
We conducted a case-control study to investigate the role of ERCC1 rs3212986 and ERCC2 rs13181 gene polymorphisms in the development of breast cancer. Between March 2012 and March 2014, a total of 242 newly diagnosed breast cancer patients with histopathologically confirmed primary breast cancer and 242 healthy controls were recruited. Genotyping of ERCC1 rs3212986 and ERCC2 rs13181 polymorphisms was carried out using polymerase chain reaction-restriction fragment length polymorphism analysis. Unconditional logistic regression analyses indicated that the TT genotype of rs3212986 was associated with a higher risk of breast cancer compared to that associated with the GG genotype (OR = 2.05, 95%CI = 1.13-3.78). In dominant and recessive models, we found that the rs3212986 polymorphism was associated with increased risk of breast cancer, and the ORs were 1.50 (95%CI = 1.03-2.18) and 1.74 (95%CI = 1.01-3.11), respectively. In summary, we found that the ERCC1 rs3212986 polymorphism was associated with the development of breast cancer.
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Ying M, Zhao R. Role of single nucleotide polymorphisms of DNA repair genes in susceptibility to pancreatic cancer in Chinese population. GENETICS AND MOLECULAR RESEARCH 2016; 15:gmr7273. [DOI: 10.4238/gmr.15017273] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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203
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Dykstra JE, Zhao R, Biesheuvel PM, van der Wal A. Resistance identification and rational process design in Capacitive Deionization. WATER RESEARCH 2016; 88:358-370. [PMID: 26512814 DOI: 10.1016/j.watres.2015.10.006] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Revised: 09/24/2015] [Accepted: 10/02/2015] [Indexed: 06/05/2023]
Abstract
Capacitive Deionization (CDI) is an electrochemical method for water desalination employing porous carbon electrodes. To enhance the performance of CDI, identification of electronic and ionic resistances in the CDI cell is important. In this work, we outline a method to identify these resistances. We illustrate our method by calculating the resistances in a CDI cell with membranes (MCDI) and by using this knowledge to improve the cell design. To identify the resistances, we derive a full-scale MCDI model. This model is validated against experimental data and used to calculate the ionic resistances across the MCDI cell. We present a novel way to measure the electronic resistances in a CDI cell, as well as the spacer channel thickness and porosity after assembly of the MCDI cell. We identify that for inflow salt concentrations of 20 mM the resistance is mainly located in the spacer channel and the external electrical circuit, not in the electrodes. Based on these findings, we show that the carbon electrode thickness can be increased without significantly increasing the energy consumption per mol salt removed, which has the advantage that the desalination time can be lengthened significantly.
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Guo B, Yang L, Zhao R, Hao S. Association between ERCC5 gene polymorphisms and gastric cancer risk. GENETICS AND MOLECULAR RESEARCH 2016; 15:gmr7828. [DOI: 10.4238/gmr.15027828] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Zhao R, Shen G. EFFECTS OF CYANIDIN-3-GLUCOSIDE ON GLYCATED LDL-INDUCED MONOCYTE ADHESION AND RELEVANT MEMBRANE PROTEINS IN CULTURED VASCULAR ENDOTHELIAL CELLS. Can J Cardiol 2015. [DOI: 10.1016/j.cjca.2015.07.133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Zhao R, Hai P, Wang Y, Li C. 606 Short-term efficacy of OXA plus GOPC combined with endostar and preoperative concurrent radiotherapy in patients with locally advanced adenocarcinoma of esophagogastric junction. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(15)30011-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Roberts J, John S, Bussell C, Grajzel K, Zhao R, Karas S, Six D, Yue C, Gavett B. C-26Age Group, Not Executive Functioning, Predicts Past Susceptibility to Internet Phishing Scams. Arch Clin Neuropsychol 2015. [DOI: 10.1093/arclin/acv047.228] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Zhao R, Duan G, Yang T, Niu S, Wang Y. Purification, Characterization and Antibacterial Mechanism of Bacteriocin from Lactobacillus Acidophilus XH1. TROP J PHARM RES 2015. [DOI: 10.4314/tjpr.v14i6.8] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Wang CC, Lv N, Feng ZZ, Li ZF, Zhao R, Li Q, Liu JM, Huang QH. Intra-aneurysmal microcatheter looping technique for stent-assisted embolization of complex intracranial aneurysms. Interv Neuroradiol 2015; 21:580-4. [PMID: 26179063 DOI: 10.1177/1591019915594330] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The endovascular treatment of wide-necked, large and giant aneurysms remains challenging. This retrospective study investigated the feasibility and safety of an intra-aneurysmal microcatheter looping technique for stent-assisted embolization of complicated intracranial aneurysms.This technique was used for 31 patients with complicated cerebral aneurysms from January 2007 to November 2013. The clinical and angiographic results were retrospectively evaluated.The target aneurysms were successfully treated in all cases (100%). A flow diverter was used in seven procedures. There were no aneurysmal perforations or ischemic complications, except for a microguidewire perforation of the distal vessel in one case. Among the 24 cases with conventional stent-assisted embolization, complete embolization or neck residual was obtained in 21 cases. Partial occlusion occurred in three cases.In conclusion, the intra-aneurysmal microcatheter looping technique is a safe and feasible alternative treatment of complicated intracranial aneurysms. This approach is a reasonable choice for patients and leads to successful outcomes.
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Wang C, Zhao R, Li B, Gu LY, Gou H. An in vivo and in vitro study: High-dosage Danshen injection induces peripheral vascular endothelial cells injury. Hum Exp Toxicol 2015; 35:404-17. [PMID: 26078283 DOI: 10.1177/0960327115591374] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Danshen injection, a pharmaceutical dosage form of Danshen, has been widely used in the treatment of coronary heart diseases, myocardial infarction, and hypertension. With more and more adverse drug reactions linked with Danshen injection, its safety comes under suspicion. To evaluate its safety, mice were divided into four groups: vehicle, low-, middle-, and high-Danshen group, and each group was intravenously administered with Danshen injection at a dose of 0, 0.64, 1.55, and 5.76 g/kg/day for 5 days, respectively (the low dosage was the recommended clinical dosage, the middle dosage was the most commonly used higher dosage, and the high dosage was the highest dosage used in clinic). Peripheral vascular toxicity wasn't observed in the low-dosage group, elevated serum endothelin-1 (ET-1) was observed in the middle-dosage group; and more peripheral vascular toxicities like increased vascular leakage, elevated serum nitrate and ET-1, and vascular endothelial cells apoptosis were detected in the high-dosage group. In vitro study, low-concentration Danshen injection showed protective effect to human umbilical vein endothelial cells (HUVECs), while high concentration displayed strong cytotoxic effects, including increase in nitric oxide and ET-1 production, inhibition of cell viability, and apoptosis induction. Further, the HUVECs' apoptosis induced by high-concentration Danshen injection was found along with the induction of reactive oxygen species. In conclusion, these results suggest that Danshen injection is nontoxic in its recommended clinical dosage, and the 2.4-fold as the recommended clinical dosage might be the highest safety dosage in clinic treatment. In addition, Danshen injection is a potential vascular toxic drug in its high dosage and shouldn't be used far beyond its recommended dosage in clinic treatment.
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Zhao R, Zhao M, Xu Z. The effects of differing resistance training modes on the preservation of bone mineral density in postmenopausal women: a meta-analysis. Osteoporos Int 2015; 26:1605-18. [PMID: 25603795 DOI: 10.1007/s00198-015-3034-0] [Citation(s) in RCA: 95] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Accepted: 01/08/2015] [Indexed: 10/24/2022]
Abstract
UNLABELLED This meta-analysis synthesized current evidence from 24 clinical trials to evaluate the impact of different resistance training modes on postmenopausal bone loss. Exercise interventions were categorized into two training modes, namely resistance-alone versus combined resistance training protocols. The combined resistance training protocols were defined as the combination of resistance training and high-impact or weight-bearing exercise. The results suggested that the combined resistance training protocols were effective in improving bone mineral density (BMD) at the femoral neck and lumbar spine. INTRODUCTION The current meta-analysis aimed to examine the effects of combined resistance and resistance-alone training protocols on the preservation of femoral neck and lumbar spine BMD in postmenopausal women. METHODS An electronic database search was conducted in PubMed, EMBASE, SPORTDiscus, Web of Science, and ProQuest up to March 1, 2014 for the influence of resistance exercise on BMD in postmenopausal women. The study quality was evaluated. The effect sizes were estimated in terms of the standardized mean difference (SMD). A subgroup analysis was conducted by exercise categories. RESULTS Twenty-four studies were included in the overall analysis of skeletal response to resistance exercise. The between-study heterogeneity was evident for the hip (I (2) = 46.5%) and spine (I (2) = 62.3%). The overall analysis suggested that resistance training significantly increased femoral neck BMD (SMD = 0.303, 95% confidence interval (95% CI) = 0.127-0.479, p = 0.001) and lumbar spine BMD (SMD = 0.311, 95% CI = 0.115-0.507, p = 0.002) in postmenopausal women. However, subgroup analysis indicated that combined resistance training programs significantly affected both the hip BMD (SMD = 0.411, 95% CI = 0.176-0.645, p = 0.001) and spine BMD (SMD = 0.431, 95% CI = 0.159-0.702, p = 0.002), whereas resistance-alone protocols only produced nonsignificant positive effects both on the femoral neck and lumbar spine BMD. CONCLUSIONS Combined resistance exercise protocols appear effective in preserving femoral neck and lumbar spine BMD in postmenopausal women, whereas resistance-alone protocols only produced a nonsignificant positive effect.
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Song H, Deng B, Zou C, Huai W, Zhao R, Zhao W. GSK3β negatively regulates LPS-induced osteopontin expression via inhibiting its transcription. Scand J Immunol 2015; 81:186-91. [PMID: 25565601 DOI: 10.1111/sji.12268] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Accepted: 12/03/2014] [Indexed: 01/23/2023]
Abstract
Osteopontin (OPN) is expressed by a variety of immune cells and is critical for both innate and adaptive immune responses. The expression status of OPN might be tightly regulated to maintain immune homeostasis. However, the mechanisms by which OPN is negatively regulated in LPS-stimulated macrophages remain largely unknown. In this study, we showed that glycogen synthase kinase 3β (GSK3β) inhibitors - SB216763, LiCl and azakenpaullone - enhanced LPS-induced OPN expression in mouse peritoneal macrophages. GSK3β knock-down had the similar effects. Furthermore, we found that GSK3β inhibitors and GSK3β knock-down both increased the activity of OPN promoter in LPS-stimulated macrophages. GSK3β inhibitor-mediated enhancement of LPS-induced OPN promoter activity was abrogated in GSK3β siRNA-treated macrophages. Therefore, we identified GSK3β as a negative regulator of OPN expression and suggest GSK3β as a potential therapeutic target for the intervention of diseases with uncontrolled OPN production.
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Zheng Y, Pan S, Huang Y, Ci L, Zhao R, Yang X. Breed-specific lipid-related gene expression in the subcutaneous fat of Large White and Erhualian pigs at weaning. Arch Anim Breed 2015. [DOI: 10.5194/aab-58-33-2015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Abstract. The Erhualian (EHL) pig possesses significantly lower growth rates and higher adipose deposition compared with the Large White (LW) pig. To further understand the mechanism of breed lipid deposition difference at the early postnatal age, we employed an animal model of EHL and LW pigs at weaning age to compare the lipid metabolism differences in subcutaneous fat. The result showed that serum triglyceride in EHL was significantly higher (P < 0.05) than that of LW. Peroxisome proliferator-activated receptor-γ protein level in EHL was significantly higher (P < 0.01) though CCTTA enhancer-binding protein level demonstrated no change compared with LW pigs. Hormone sensitive lipase, adipose tissue triglyceride lipase mRNA expression and the lipase activity were significantly lower (P < 0.05) in EHL. Uncoupling protein-2 protein content was significantly lower (P < 0.01) in EHL than that in LW pigs. We first cloned the nucleotide sequence of Zinc-α2-glycoprotein (ZAG) with 1090 bp and found that both ZAG mRNA expression and protein level in EHL pigs was significantly lower (P < 0.01) than that of LW pigs. β3 adrenergic receptor mRNA expression in EHL pigs was significantly higher (P < 0.01) than that of LW pigs, though tumour necrosis factor α gene expression demonstrated no significant difference. Therefore, the significant breed lipid metabolism difference in subcutaneous fat exists at an early postnatal age between EHL and LW pigs, and this difference may originate from two causes including the increased lipid synthesis and reduced lipid mobilization in EHL pigs compared with LW pigs.
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Wang Y, Wang X, Zhao R. The association of CTLA-4 A49G polymorphism with colorectal cancer risk in a Chinese Han population. Int J Immunogenet 2015; 42:93-9. [PMID: 25689638 DOI: 10.1111/iji.12181] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Revised: 01/05/2015] [Accepted: 01/25/2015] [Indexed: 11/28/2022]
Abstract
Cytotoxic T-lymphocyte antigen-4 (CTLA-4) is expressed in T cells and plays an important role in the regulation of T cell. CTLA-4 has long been considered to be associated with various kinds of diseases. With the attempt to examine the association between CTLA-4 A49G polymorphism and colorectal cancer risk in a Chinese Han population, we employed TaqMan assay to genotype the CTLA-4 A49G polymorphism in 311 colorectal cancer cases and 389 cancer-free controls. We found evidence of the association between CTLA-4 A49G polymorphism and colorectal cancer risk (GG vs. AA: OR = 2.01, 95% CI = 1.29-3.07, P = 0.002; GA vs. AA: OR = 2.32, 95% CI = 1.53-3.57, P = 0.001; GA + GG vs. AA: OR = 2.16, 95% CI = 1.46-3.21, P = 0.001). Next, we performed a meta-analysis to comprehensively examine the association between CTLA-4 A49G polymorphism and colorectal cancer risk. We found a significant association between CTLA-4 A49G polymorphism and colorectal cancer risk among Asians, which is consistent with our result. However, we found no evidence for the association between CTLA-4 A49G polymorphism and colorectal cancer risk among Caucasians. In conclusion, we demonstrated that the CTLA-4 A49G polymorphism increased the susceptibility of colorectal cancer in Asian population.
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Wang X, Guo T, Wang S, Yuan J, Zhao R. Simultaneous Determination of 11 -Agonists in Human Urine Using High-Performance Liquid Chromatography/Tandem Mass Spectrometry with Isotope Dilution. J Anal Toxicol 2014; 39:213-8. [DOI: 10.1093/jat/bku143] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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217
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Su W, Zhao R, Heins-Nesvold J, Carlson A. A Method to Investigate Seasonal Variation in Hospitalization for Copd in A Midwestern US State. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2014; 17:A777. [PMID: 27202875 DOI: 10.1016/j.jval.2014.08.353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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Zhao R, Su W, Carlson A. Comparing the Efficacy of Anti-Vascular Endothelia Growth Factor Drugs for Treatment of Age-Related Macular Degeneration: a Clinical Literature Review and Meta-Analysis. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2014; 17:A781. [PMID: 27202898 DOI: 10.1016/j.jval.2014.08.378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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Liu P, Zeng F, Yang F, Wang J, Liu X, Wang Q, Zhou G, Zhang D, Zhu M, Zhao R, Wang A, Gong Q, Liang F. Altered structural covariance of the striatum in functional dyspepsia patients. Neurogastroenterol Motil 2014; 26:1144-54. [PMID: 24865440 DOI: 10.1111/nmo.12372] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Accepted: 05/01/2014] [Indexed: 12/24/2022]
Abstract
BACKGROUND Functional dyspepsia (FD) is thought to be involved in dysregulation within the brain-gut axis. Recently, altered striatum activation has been reported in patients with FD. However, the gray matter (GM) volumes in the striatum and structural covariance patterns of this area are rarely explored. The purpose of this study was to examine the GM volumes and structural covariance patterns of the striatum between FD patients and healthy controls (HCs). METHODS T1-weighted magnetic resonance images were obtained from 44 FD patients and 39 HCs. Voxel-based morphometry (VBM) analysis was adopted to examine the GM volumes in the two groups. The caudate- or putamen-related regions identified from VBM analysis were then used as seeds to map the whole brain voxel-wise structural covariance patterns. Finally, a correlation analysis was used to investigate the effects of FD symptoms on the striatum. KEY RESULTS The results showed increased GM volumes in the bilateral putamen and right caudate. Compared with the structural covariance patterns of the HCs, the FD-related differences were mainly located in the amygdala, hippocampus/parahippocampus (HIPP/paraHIPP), thalamus, lingual gyrus, and cerebellum. And significant positive correlations were found between the volumes in the striatum and the FD duration in the patients. CONCLUSIONS & INFERENCES These findings provided preliminary evidence for GM changes in the striatum and different structural covariance patterns in patients with FD. The current results might expand our understanding of the pathophysiology of FD.
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Wu J, Fu W, Huang Y, Ni Y, Zhao R. Kisspeptin-10 enhanced egg production in quails associated with the increase of triglyceride synthesis in liver. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2014; 26:1080-8. [PMID: 25049888 PMCID: PMC4093219 DOI: 10.5713/ajas.2013.13014] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2013] [Revised: 04/11/2013] [Accepted: 03/18/2013] [Indexed: 11/27/2022]
Abstract
Our previous results showed that kisspeptin-10 (Kp-10) injections via intraperitoneal (i.p.) once daily for three weeks notably promoted the egg laying rate in quails. In order to investigate the mechanism behind the effects of Kp-10 on enhancing the egg laying rate in birds, this study focused on the alternations of lipids synthesis in liver after Kp-10 injections. 75 female quails (22 d of age) were allocated to three groups randomly, and subjected to 0 (control, Con), 10 nmol (low dosage, L) and 100 nmol (high dosage, H) Kp-10 injections via i.p. once daily for three weeks, respectively. At d 52, quails were sacrificed and sampled for further analyses. Serum E2 concentration was increased by Kp-10 injections, and reached statistical significance in H group. Serum triglyceride (TG) concentrations were increased by 46.7% in L group and 36.8% in H group, respectively, but did not reach statistical significance, and TG contents in liver were significantly elevated by Kp-10 injections in a dose-dependent manner. Serum total cholesterol (Tch) concentrations significantly decreased in H group, while in H group the hepatic Tch content was markedly increased. The level of non-esterified fatty acid (NEFA), apolipoprotein A1 and B (apoA1 and apoB) were not altered by Kp-10 injections. The genes expression of sterol regulatory element binding protein-1 (SREBP-1), fatty acid synthetase (FAS), apolipoprotein VLDL-II (apoVLDL-II), cholesterol 7α-hydroxylase (CYP7A1) and vitellogenin II (VTG-II) were significantly up-regulated by high but not low dosage of Kp-10 injection compared to the control group. However, the expression of SREBP-2, acetyl-CoA carboxylase (ACCα), malic enzyme (ME), stearoyl-CoA (Δ9) desaturase 1 (SCD1), apolipoprotein A1 (apoA1), fatty acid binding protein 2 (FABP2), 3-hydroxyl-3-methyl glutaryl-coenzyme A reductases (HMGCR), estrogen receptor α, β (ERα and β) mRNA were not affected by Kp-10 treatment. In line with hepatic mRNA abundance, hepatic SREBP1 protein content was significantly higher in H group. Although the mRNA expression was not altered, the content of ERα protein in liver was also significantly increased in H group. However, SREBP-2 protein content in liver was not changed by Kp-10 treatment. In conclusion, exogenous Kp-10 consecutive injections during juvenile stage significantly advanced the tempo of egg laying in quails, which was associated with the significant elevation in hepatic lipids synthesis and transport.
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Kenanakis G, Zhao R, Katsarakis N, Kafesaki M, Soukoulis CM, Economou EN. Optically controllable THz chiral metamaterials. OPTICS EXPRESS 2014; 22:12149-12159. [PMID: 24921336 DOI: 10.1364/oe.22.012149] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Switchable and tunable chiral metamaterial response is numerically demonstrated here in different uniaxial chiral metamaterial structures operating in the THz regime. The structures are based on the bi-layer conductor design and the tunable/switchable response is achieved by replacing parts of the metallic components of the structures by photoconducting Si, which can be transformed from an insulating to an almost conducting state through photoexcitation, achievable under external optical pumping. All the structures proposed and discussed here exhibit frequency regions with giant tunable circular dichroism, as well as regions with giant tunable optical activity, showing unique potential in the achievement of active THz polarization components, like tunable polarizers and polarization filters.
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Zhao R, Wang N, Wang R, Chen H, Shi Y, Fan Z, Zhou T. Characterization and full genome sequence analysis of a Chinese isolate of tomato chlorosis virus. Acta Virol 2014; 58:92-4. [PMID: 24717034 DOI: 10.4149/av_2014_01_92] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
KEYWORDS crinivirus; complete nucleotide sequence; tomato; sequence analysis.
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Zhou Y, Yang PF, Fang YB, Xu Y, Hong B, Zhao WY, Li Q, Zhao R, Huang QH, Liu JM. A novel flow-diverting device (Tubridge) for the treatment of 28 large or giant intracranial aneurysms: a single-center experience. AJNR Am J Neuroradiol 2014; 35:2326-33. [PMID: 24722307 DOI: 10.3174/ajnr.a3925] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE The Tubridge flow diverter is a novel device developed in China and aimed at reconstructing the parent artery and occluding the aneurysm. We conducted this study to evaluate its feasibility, safety, and efficacy for the treatment of large or giant internal carotid artery aneurysms, which are still challenging with conventional therapy. MATERIALS AND METHODS The clinical and angiographic data of 28 patients with 28 large or giant internal carotid artery aneurysms treated with Tubridge flow diverters were prospectively collected and analyzed. RESULTS Thirty-three Tubridge flow diverters were successfully implanted except for 1 poor midstent opening; the result was a technical success rate of 97.0% (32/33). Follow-up angiographies were available for 25 aneurysms; the mean follow-up was 9.9 months (5-24 months). Of the 25 aneurysms, 18 (72.0%) were completely occluded, 6 (24.0%) were improved, and 1 (4.0%) was unchanged. All of the visible covered branches and parent arteries were patent, with no stenosis or obliteration. During a follow-up of 6-30 months (mean, 19 months), symptoms were resolved in 13 patients, improved in 6 patients, and unchanged in 4 patients. Five patients experienced transient clinical deterioration due to a postoperative increased mass effect. Procedure-related morbidity and mortality were both zero. CONCLUSIONS Our preliminary experience shows that the Tubridge flow diverter is a safe and effective tool for treating large and giant internal carotid artery aneurysms. However, multicenter randomized trials and studies involving a long-term follow-up are necessary.
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Wang S, Ni Y, Guo F, Sun Z, Ahmed A, Zhao R. Differential expression of hypothalamic fear- and stress-related genes in broiler chickens showing short or long tonic immobility. Domest Anim Endocrinol 2014; 47:65-72. [PMID: 24360202 DOI: 10.1016/j.domaniend.2013.11.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Revised: 11/07/2013] [Accepted: 11/12/2013] [Indexed: 01/31/2023]
Abstract
The serotonin system and the hypothalamic-pituitary-adrenal axis play important roles in modulating fear and stress-coping characteristics. Tonic immobility (TI) is a fear-related phenotype, and previously we have shown that broiler chickens showing short TI (STI) duration experience better growth performance and higher adaptability to stress. Here, we sought to further elucidate the central mechanisms underlying the phenotypic differences between chickens showing STI and long TI duration, by comparing the hypothalamic expression of genes in the serotonergic system and the hypothalamic-pituitary-adrenal axis under basal and corticosterone-exposed situations. The STI broilers had significantly lower (P < 0.01) hypothalamic expression of serotonin reuptake transporter and serotonin receptor 1A. Moreover, 11β-hydroxysteroid dehydrogenase type 2 was expressed significantly lower in STI chickens at the level of both mRNA (P < 0.01) and protein (P < 0.05). Hypothalamic expression of glucocorticoid receptor (GR) mRNA tended to be higher (P < 0.059) in long TI chickens, but the protein content was approximately 2 times higher (P < 0.01) in STI chickens. The uncoupled expression of GR mRNA and protein was associated with significantly lower (P < 0.05) expression of gga-miR-181a, gga-miR-211, and gga-miR-22, which are predicted to target GR, in STI chickens. Corticosterone administration reduced the mRNA expression of postsynaptic serotonin receptors, 5-hydroxytryptamine receptor 1B (P = 0.059) and 5-hydroxytryptamine receptor 7 (P < 0.05), yet significantly increased the protein content of 11β-hydroxysteroid dehydrogenase type 2 (P < 0.05). These results suggest that broilers of different TI phenotypes have a distinct pattern of hypothalamic expression of fear- and stress-related genes.
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Fang Y, Song YQ, Zhou WP, Zhao R, Tang RJ, Yang H, Lv LY, Yang SG, Wang DH, Du YW. Large magnetoelectric coupling in Co4Nb2O9. Sci Rep 2014; 4:3860. [PMID: 24463631 PMCID: PMC3902385 DOI: 10.1038/srep03860] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Accepted: 01/03/2014] [Indexed: 12/05/2022] Open
Abstract
Magnetoelectric materials which simultaneously exhibit electric polarization and magnetism have attracted more and more attention due to their novel physical properties and promising applications for next-generation devices. Exploring new materials with outstanding magnetoelectric performance, especially the manipulation of magnetization by electric field, is of great importance. Here, we demonstrate the cross-coupling between magnetic and electric orders in polycrystalline Co4Nb2O9, in which not only magnetic-field-induced electric polarization but also electric field control of magnetism is observed. These results reveal rich physical phenomenon and potential applications in this compound.
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