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Liu Y, Sun J, Zhang P, He Z. Amphiphilic Polysaccharide-Hydrophobicized Graft Polymeric Micelles for Drug Delivery Nanosystems. Curr Med Chem 2011; 18:2638-48. [DOI: 10.2174/092986711795933696] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2011] [Accepted: 05/15/2011] [Indexed: 11/22/2022]
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227
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Sun Z, Hu Y, Liu S, Tang S, Han X, Zhou C, Wang M, He Z, Tan Z. Net nutrient flux in visceral tissues of goats fed diets based on maize or wheat. JOURNAL OF ANIMAL AND FEED SCIENCES 2011. [DOI: 10.22358/jafs/66154/2011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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228
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He Z, Fernandez-Fuente M, Strom M, Cheung L, Robinson IC, Le Tissier P. Continuous on-line monitoring of secretion from rodent pituitary endocrine cells using fluorescent protein surrogate markers. J Neuroendocrinol 2011; 23:197-207. [PMID: 21166728 DOI: 10.1111/j.1365-2826.2010.02104.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
We have developed a system to use secreted fluorescent proteins (FPs) as surrogate markers for the continuous on-line monitoring of hormone release from perfused tissue slices. We have tested this system using GH-GFP transgenic rats with green fluorescent protein (GFP) targeted to the secretory vesicles (SVs) of pituitary growth hormone (GH) cells. Brief exposures of vibratome slices to GH secretagogues [GH-releasing hormone (GHRH), GH-releasing peptide-6 (GHRP-6)] or somatostatin caused changes in FP output that correlate with hormone secretion, subsequently measured in fractions of perfusate by radioimmunoassay. The temporal resolution of this method was capable of revealing differences in the kinetics of response to GHRH and GHRP-6 between wild-type and dwarf (dw/dw) rats harbouring the GH-GFP transgene. We further tested the utility of the system by generating transgenic mice with red FPs targeted to secretory vesicles (PRL-mRFP(sv)) and to the cytoplasm (PRL-DsRed(cyto)) of lactotrophs. Dopamine had no effect on the FP output from pituitary slices of PRL-DsRed(cyto) mice but inhibited output from those of PRL-mRFP(sv) animals, with a rebound increase of release after removal, which again correlated with hormone output measured in the perfusate by radioimmunoassay. The inhibition of monomeric RFP secretion by dopamine was dose-dependent, as was stimulation by low concentrations of oxytocin. The temporal resolution afforded by this method provides useful insight into the release kinetics from large populations of pituitary cells, and fills a temporo-spatial gap between single vesicle and single cell monitoring of exocytosis in milliseconds, and in vivo sampling studies of release into the bloodstream on a time scale of minutes.
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Deng W, Zou L, Cui L, Huang C, Chen Z, Li M, Jiang L, He Z, Lui S, Gong Q, Li T. Study of brain asymmetries in sporadic and familial first episode patients with schizophrenia. Eur Psychiatry 2011. [DOI: 10.1016/s0924-9338(11)72624-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
IntroductionAlthough the deviations of brain volume deficits in sporadic and familial first-episode schizophrenia patients (FEP) had been presented, the difference of brain asymmetries remained unidentified.ObjectivesTo assess the potential differences of volumetric asymmetries of gray matter (GM) and white matter (WM) between groups.AimsTo find out the different injury alteration of sporadic FEP and familial FEP.Methods42 sporadic and 30 familiar drug-naïve FEP with and 72 matched normal controls (NC) were recruited. Participants were assessed with neuropsychological tests and scanned by a 3.0T MRI to obtain T1-weighted and DTI images. Lateralization distribution maps of GM and WM volume were generated by employing optimized voxel-based morphometry. The asymmetries were analyzed by comparing calculating Laterality Index (LI) voxel by voxel.ResultsAll three groups showed similar overall brain torque. Familiar FEP have more regional extensive GM asymmetry brain lesions compared to sporadic FEP. There was no shared regional lesion between two groups. LIGM and LIWM in right superior temporal were negatively correlated. Significant negative correlations were also found between LIGM of left superior parietal lobule and LIWM of right superior parietal lobule, and between LIGM of right inferior parietal lobule and LIWM of left inferior parietal lobule. The asymmetry in distinct brain regions were related to cognitive deficits especially in the domains of language and memory.ConclusionsThe two patient groups had different alteration in injuries of brain asymmetry. Familiar FEP has more GM extensive asymmetry brain region, which may correlate with their high genetic burdens.
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Zhao G, Stacy T, Charlson EM, Charlson EJ, Hajsaid M, Roychoudhury R, Khan AH, Meese JM, He Z, Prelas M. Photoresponse Study of Polycrystalline Diamond thin Film Schottky Diodes. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-339-191] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTWe are reporting the first quantitative photoresponse characteristics of boron doped hot-filament CVD (HFCVD) diamond based Schottky diodes using semi-transparent aluminum contacts in the spectral range of 300–1050 nm. Quantum efficiencies, obtained without correction for surface reflection in the visible and near UV region, were between 5 % and 10% when the diodes were unbiased. Effect of reverse bias on the photoresponse was investigated at selected photon energies. Reverse biased diodes exhibit increasing photoresponse and ultimately saturation. Quantum efficiency as high as 30% was also obtained at 500 nm, when a reverse bias of over I volt was applied. The photoresponse mechanism of CVD diamond Schottky diodes is also discussed. A Schottky barrier height of 1.15 ± 0.02 eV for Al-HFCVD diamond contacts was determined using the d.c. photoelectric method.
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231
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He Z, Knoll GF, Wehe DK, Du YF. Direct Measurement of Electron Drift Parameters using Depth Sensing Single Carrier CdZnTe Detectors. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-487-89] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AbstractThis paper describes some novel techniques developed for directly measuring the electron mobility μe and mean free drift time Te in wide band gap semiconductors. These methods are based on a newly-developed digital data analysis system, in conjunction with single carrier charge sensing and depth sensing techniques. Compared with conventional methods, the new techniques are easier to implement, do not involve curve fitting, allow the use of high energy γ-rays and are not sensitive to variations in pulse rise time.
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232
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Zhu L, He Z, Ooi TL. The intrinsic bias of space perception is updated during walking. J Vis 2010. [DOI: 10.1167/9.8.77] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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233
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He Z, Liu HC, Tang Y, Rosenwaks Z. Enhancing somatic nuclear reprogramming by DNA demethylation with MicroRNA (miRNA) and DNA methyltransferase knockdown. Fertil Steril 2010. [DOI: 10.1016/j.fertnstert.2010.07.218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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234
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Wang W, Liu HC, Ni L, He Z, Tang Y, Rosenwaks Z. Reduce fertility and skewed sex ratio in mice lacking Umodl1. Fertil Steril 2010. [DOI: 10.1016/j.fertnstert.2010.07.727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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235
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He Z, Spain JC. Studies of the Catabolic Pathway of Degradation of Nitrobenzene by Pseudomonas pseudoalcaligenes JS45: Removal of the Amino Group from 2-Aminomuconic Semialdehyde. Appl Environ Microbiol 2010; 64:1166. [PMID: 16349521 PMCID: PMC106389 DOI: 10.1128/aem.64.3.1166b-1166b.1998] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
[This corrects the article on p. 4841 in vol. 63.].
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236
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Zhang Y, Zhang G, Sun X, He Z, Rajaratnam M. Properties and Microstructure Study of Polyimide Foam Plastic. CELLULAR POLYMERS 2010. [DOI: 10.1177/026248931002900401] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Five kinds of polyimide (PI) foams were prepared from dianhydride and diamine by esterification process. The microstructure of foam was characterized by SEM and visualization methods, and many properties of material were measured, including heat resistance, fire resistance, compressive strength, heat insulation and acoustic absorption. It was shown that the cell size of foam was from 1 to 1.5 mm. The cell edge of PIBM and PIBO foam was obscure, and the cell wall was thinner than the PIBD, PIOD and PIBO-DM foam with thicker cell edge and poor cell size homogeneity. Five types of PI foams presented the trait of flexible foam plastics. All of them possess high decompose temperature, and their limiting oxygen index surpassed 40 percent, and thermal diffusion coefficients were less than 0.030 W/m·°C. In addition, PIBO, PIOD, and PIBO-DM foam had excellent acoustic absorption.
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Shi Y, Wang H, Su Z, Chen J, Xue Y, Wang S, Xue Y, He Z, Yang H, Zhou C, Kong F, Liu Y, Yang P, Lu L, Shao Q, Huang X, Xu H. Differentiation Imbalance of Th1/ Th17 in Peripheral Blood Mononuclear Cells Might Contribute to Pathogenesis of Hashimoto’s Thyroiditis. Scand J Immunol 2010; 72:250-5. [DOI: 10.1111/j.1365-3083.2010.02425.x] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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238
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Su Y, Teng Leng O, He Z. Binocular suppression in the monocular boundary contour display starts early (<=80 msec). J Vis 2010. [DOI: 10.1167/9.8.305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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239
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Ooi TL, Su Y, Xu J, He Z. On boundary contour and center-surround factors in binocular rivalry. J Vis 2010. [DOI: 10.1167/9.8.306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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240
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Su Y, Ooi TL, He Z. Incompatible local features are unnecessary for binocular suppression. J Vis 2010. [DOI: 10.1167/8.6.242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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241
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Su Z, Kong F, Wang S, Chen J, Yin R, Zhou C, Zhang Y, He Z, Shi Y, Xue Y, Shi X, Lu L, Shao Q, Xu H. The rag locus of Porphyromonas gingivalis might arise from Bacteroides via horizontal gene transfer. Eur J Clin Microbiol Infect Dis 2010; 29:429-37. [PMID: 20195672 PMCID: PMC2953623 DOI: 10.1007/s10096-010-0880-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2009] [Accepted: 01/05/2010] [Indexed: 11/26/2022]
Abstract
Porphyromonas gingivalis is regarded as one of the risk factors of periodontitis. P. gingivalis exhibits a wide variety of genotypes. Many insertion sequences (ISs), located in their chromosomes, made P. gingivalis differentiate into virulent and avirulent strains. In this research, we investigated the prevalence of P. gingivalis in the gingival crevicular fluid (GCF) among periodontitis patients from Zhenjiang, China, detected the P. gingivalis rag locus distributions by multiplex polymerase chain reaction (PCR), and analyzed the origin of the P. gingivalis rag locus based on evolution. There were three rag locus variants co-existing in Zhenjiang. The results showed that the rag locus may be associated with severe periodontitis. This work also firstly ascertained that the rag locus might arise, in theory, from Bacteroides sp. via horizontal gene transfer.
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He Z, Wangy Y, Huang L. Analysis of the disease spectrum of treated patients after Wenchuan earthquake. Crit Care 2010. [PMCID: PMC2934531 DOI: 10.1186/cc8513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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243
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Zhang Y, Zhang G, He Z, Sun X, Rajaratnam M. Visualization Study of Solid Poly (Ester-Amine Salt) Precursor Foaming Process. CELLULAR POLYMERS 2010. [DOI: 10.1177/026248931002900103] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
In this research, solid poly (ester-amine salt) precursor was used to prepare polyimide foams. The foaming process was observed by microscope, and effects of particle size on bubble growth were highlighted. The results showed that the powder particles with a size between 25 and 150 μm favor to grow into single bubble mesostructure, and the ones which grow into a multi-bubble mesostructure beyond this size. On the contrary, the bubble growth terminated when the particle size below 25 μm. Sieving was an effective method to narrow size distribution and uniform the particle size, which is of benefit to the formation of polyimide foams. After filtrated with 100 mesh sieve, the retreated particles were situated in optimal band to produce polyimide foams with single bubble mesostructure.
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He Z, Chen L, Qiu J, Li J, Zhao D, Chen G, Wang C. Conversion from cyclosporin A to sirolimus retards the progression of chronic allograft nephropathy in the long term in a rat kidney transplantation model. J Int Med Res 2009; 37:1396-410. [PMID: 19930844 DOI: 10.1177/147323000903700514] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In a rat renal allograft model, the long-term effect of conversion from cyclosporin A (CsA) to sirolimus on recipient kidneys and growth factor expression were compared with continuous use or withdrawal of CsA. Kidneys from Fisher 344 rats were orthotopically transplanted into Lewis rats. Four Fisher 344 to Lewis allograft groups were treated post-transplant as follows: (i) CsA (transplant to week 8) then sirolimus (weeks 8 - 24); (ii) CsA (transplant to week 24); (iii) CsA (transplant to week 8) then vehicle (weeks 8 - 24); (iv) control vehicle (transplant to week 24). A fifth group underwent syngeneic isograft (Lewis to Lewis) with no drug treatment. Proteinuria was measured every 4 weeks and grafts harvested at 24 weeks for morphological and immunohistochemical analysis. Conversion from CsA to sirolimus resulted in a significant decrease in proteinuria at 24 weeks, a lower Banff sum score and lower expression of transforming growth factor mRNA compared with continuous use or withdrawal of CsA. In conclusion, conversion from CsA to sirolimus retarded progression of chronic allograft nephropathy in the rat model.
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245
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Li S, He Z, Guo L, Huang L, Wang J, He W. Behavioral alterations associated with a down regulation of HCN1 mRNA in hippocampal cornus ammon 1 region and neocortex after chronic incomplete global cerebral ischemia in rats. Neuroscience 2009; 165:654-61. [PMID: 19892002 DOI: 10.1016/j.neuroscience.2009.10.053] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2009] [Revised: 09/22/2009] [Accepted: 10/24/2009] [Indexed: 11/17/2022]
Abstract
It has been suggested that hyperpolarization-activated cyclic-nucleotide-gated cation non-selective channel (HCN) 1 is primarily expressed in the hippocampus and can be regulated in many pathological settings. However, little is known about its change under ischemic conditions. In the present study, we performed neurophysiological recordings of sham-operated and chronic ischemic rats with hypoperfusion during the resolution of the neurological deficits respectively. In situ hybridization methods and reverse transcriptase-polymerase chain reaction (RT-PCR) assays were used to investigate whether and how HCN1 mRNA may be altered in global incomplete chronic cerebral ischemic rat model. Our results suggested that attenuated spatial learning and memory function of rats shown by longer escape latency, shorter time spent in the target quadrant and impaired long-term potentiation (LTP) after chronic cerebral ischemia. In the in situ hybridization cytochemistry experiment, HCN1 mRNA declined to 52.00% and 46.00% of the control values in the cornus ammon 1 (CA1) regions of hippocampus and neocortex separately after chronic cerebral ischemia. HCN1 mRNA in the hippocampal CA1 region and neocortex was markedly down regulated by ischemia, reaching 48.90% and 45.80% of the control values respectively in the semi-quantitative RT-PCR experiment. The phenomenon opened new insights for further investigation of the physiological and pathological significances of HCN1 in chronic incomplete global cerebral ischemia.
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Li X, Gong K, He Z, Zhang Q, Xi Z, Li N, Zhou L, Guo Y. MP-14.03: The Natural History of Incidentally Discovered Renal Cell Carcinomas (RCCs). Urology 2009. [DOI: 10.1016/j.urology.2009.07.854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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247
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Zhou L, He Z, Li N, Wu S, Zhang X. VID-03.03: Transperitoneal Laparoscopic Adrenalectomy for Recurrent Adrenal Tumors: Report of 6 Cases. Urology 2009. [DOI: 10.1016/j.urology.2009.07.718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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248
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Zhou L, He Z, Li N, Wu S, Zhang X. UP-1.037: Retroperitoneoscopic Versus Open Radical Nephrectomy in Patients with Larger Tumors (Average Diameter ≥7cm). Urology 2009. [DOI: 10.1016/j.urology.2009.07.484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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249
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Zhou L, Song G, He Z, Li N, Song Y. UP-1.038: The Anatomical Retroperitoneoscopic Nephrectomy: Radical or Non-Radical. Urology 2009. [DOI: 10.1016/j.urology.2009.07.485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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250
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Liu HC, He Z, Tang Y, Rosenwaks Z. Downregulation of Dicer and micro RNA implicates aberrant epigenetic marks and transcriptional factor expression in early embryogenesis. Fertil Steril 2009. [DOI: 10.1016/j.fertnstert.2009.07.246] [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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