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Zhao ZQ, Zhai J. [A meta-analysis of prognosis after bipolar umbilical cord coagulation or radiofrequency ablation to reduce complicated monochorionic multiple pregnancies]. ZHONGHUA YI XUE ZA ZHI 2018; 98:2832-2837. [PMID: 30248788 DOI: 10.3760/cma.j.issn.0376-2491.2018.35.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the prognosis and complications after reduction of monochorionic multifetal pregnancies using bipolar umbilical cord coagulation (BCC) or radiofrequency ablation (RFA). Methods: A literature search were performed by using online databases including PubMed, Embase, and COCHRANE.The publications that described prognosis and complications after selective reduction of monochorionic twin pregnancies using either BCC or RFA for studies with clear outcome data were identified. Results: We identified five retrospective cohort studies for the meta-analysis and 231 cases of BCC and 174 cases of RFA.There was no statistical difference in overall survival after reduction between BCC group (79.2%) and RFA groups (76.4%) (RR=0.96; 95%CI: 0.86~1.08; P=0.48). Neonatal mortality was similar in both groups (8.2% vs 11.1%, respectively; RR=1.34; 95%CI: 0.60~2.99; P=0.48). However, intrauterine fetal death (IUFD) in the RFA group was 13.6%, and it significantly higher than that in the BCC group 7.7% (RR=2.15; 95%CI: 1.10~4.21; P=0.03). In contrast, after reduction, those in the RFA group had less preterm premature rupture of membranes (PPROM) compared with the BCC group (17.1% vs 27.5%, RR=0.58; 95%CI: 0.39~0.86; P=0.007). Conclusions: RFA and BCC groups have similar overall survival for complicated monochromic multiple pregnancies, but RFA was more prone to IUFD, and BCC tended to have more PPROM.Thus, procedures should be chosen according to specific clinical situations and pregnancy conditions.
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Zhai J, Wang J, Chang Z, Ma L. Metformin regulates key micrornas to increase implantation marker gene expression in the uterus of PCOS patients. Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.342] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Zhai J, Jia Y, Zhao L, Yuan Q, Gao F, Zhang X, Cai P, Gao L, Guo J, Yi S, Chai Z, Zhao Y, Gao X. Turning On/Off the Anti-Tumor Effect of the Au Cluster via Atomically Controlling Its Molecular Size. ACS NANO 2018; 12:4378-4386. [PMID: 29667812 DOI: 10.1021/acsnano.8b00027] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
We reported two Au clusters with precisely controlled molecular size (Au5Peptide3 and Au22Peptide10) showing different antitumor effects. In vitro, both Au5Peptide3 and Au22Peptide10 were well taken up by human nasopharyngeal cancer cells (CNE1 cells). However, only Au5Peptide3 significantly induced CNE1 cell apoptosis. Further studies showed that CNE1 cells took up Au5Peptide3 (1.98 × 10-15 mol/cell), and 9% of them entered mitochondria (0.186 × 10-15 mol/cell). As a comparison, the uptake of Au22Peptide10 was only half the amount of Au5Peptide3 (1.11 × 10-15 mol/cell), and only 1% of them entered mitochondria (0.016 × 10-15 mol/cell). That gave 11.6-fold more Au5Peptide3 in mitochondria of CNE1 cells than Au22Peptide10. Further cell studies revealed that the antitumor effect may be due to the enrichment of Au5Peptide3 in mitochondria. Au5Peptide3 slightly decreased the Mcl-1 (antiapoptotic protein of mitochondria) and significantly increased the Puma (pro-apoptotic protein of mitochondria) expression level in CNE1 cells, which resulted in mitochondrial transmembrane potential change and triggered the caspase 9-caspase 3-PARP pathway to induce CNE1 cell apoptosis. In vivo, CNE1 tumor growth was significantly suppressed by Au5Peptide3 in the xenograft model after 3 weeks of intraperitoneal injection. The TUNEL and immuno-histochemical studies of tumor tissue verified that CNE1 cell apoptosis was mainly via the Puma and Mcl-1 apoptosis pathway in the xenograft model, which matched the aforementioned CNE1 cell studies in vitro. The discovery of Au5 but not Au22 suppressing tumor growth via the mitochondria target was a breakthrough in the nanomedical field, as this provided a robust approach to turn on/off the nanoparticles' medical properties via atomically controlling their sizes.
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Zhang P, Zhai J, Gao X, Zhao H, Su W, Zhao L. Targeted peptide-Au cluster binds to epidermal growth factor receptor (EGFR) in both active and inactive states: a clue for cancer inhibition through dual pathways. Sci Bull (Beijing) 2018; 63:349-355. [PMID: 36658871 DOI: 10.1016/j.scib.2018.02.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 01/13/2018] [Accepted: 01/18/2018] [Indexed: 01/21/2023]
Abstract
The epidermal growth factor receptor (EGFR) has become an important target protein in anticancer drug development. Meanwhile, peptide-Au cluster has been proposed as potential targeted nano-drug assembled by targeting peptide. Here, we designed and synthesized a novel peptide-Au cluster as Au10Peptide5 to target to EGFR. We found Au10Peptide5 could target to the natural binding sites of all EGFRs at membrane in both active and inactive states by molecular simulations. Its targeted ability was further verified by the co-localization and blocking experiments. We also study the configuration modifications of both active and inactive EGFRs after binding by Au10Peptide5. For active EGFR, the absorbed Au10Peptide5 might replace the natural ligand in EGFR endocytosis process. Then, the peptide-Au cluster in endochylema could inhibit the cancer relating enzyme activity including thioredoxin reductase1 (TrxR1) and induce the oxidative stress mediated apoptosis in tumor cells. For inactive EGFR, it was retained in inactive state by Au10Peptide5 binding to inhibit dimerization of EGFR for anticancer. Both pathways might be applied in anticancer drug development based on the theoretical and experimental study here.
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Bian YY, Wu H, Huang Z, Zhai J, Liu Y, Weng XS. Surgical treatment of a giant iliopsoas haemophilic pseudotumour with adjacent structure compressions: A case report. Haemophilia 2017; 23:e507-e512. [PMID: 28869681 DOI: 10.1111/hae.13299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/30/2017] [Indexed: 11/26/2022]
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Wang JY, Zhai J. [Systematic evaluation of the influence of endometrial stimulation on pregnancy outcome in the patients with artificial insemination]. ZHONGHUA YI XUE ZA ZHI 2017; 96:3680-3685. [PMID: 27978907 DOI: 10.3760/cma.j.issn.0376-2491.2016.45.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: The association between endometrial stimulation and the intrauterine insemination outcome remains to be a controversial issue, for there being all kinds of conflicting data in the existing literatures. We conducted a Meta-analysis case to verify the relations between endometrial stimulation and intrauterine insemination (IUI). Methods: The articles had been searched in the following online databases: MEDLINE, CNKI, VIP, Wan Fang, EMBASE and the Cochrane Library. All of the statistics quoted for our studies have been published in English or Chinese from Jan, 2000 to May, 2016. Among the 6 studies included in this Meta-analysis, all of them used a case - control design. All the 6 studies evaluated a total of 1349 participants, including 734 cases of endometrial injury. Results: The results of the Meta-analysis showed that patients with endometrial stimulation were more likely to receive clinical pregnancy than those who did not. Compared with the control group, the clinical pregnancy rate of experiment group was higher (RR=0.88, 95% CI: 0.82-0.95, P=0.001), while the differences between their abortion rate (RR=0.72, 95% CI: 0.37-1.4, P=0.33) and multiple pregnancies rate (RR=0.78, 95% CI: 0.3-2.01, P=0.60) were insignificant. Conclusions: Endometrial stimulation could help increase the pregnancy rate in IUI cycles, while the abortion rate and multiple pregnancies rate would not be raised.
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Zhai J, Zhao L, Zheng L, Gao F, Gao L, Liu R, Wang Y, Gao X. Peptide-Au Cluster Probe: Precisely Detecting Epidermal Growth Factor Receptor of Three Tumor Cell Lines at a Single-Cell Level. ACS OMEGA 2017; 2:276-282. [PMID: 30023515 PMCID: PMC6044707 DOI: 10.1021/acsomega.6b00390] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2016] [Accepted: 01/10/2017] [Indexed: 05/29/2023]
Abstract
Alterations in protein (e.g., biomarkers) expression levels have a significant correlation with tumor development and prognosis; therefore, it is desired to develop precise methods to differentiate the expression level of proteins in tumor cell lines, especially at the single-cell level. Here, we report a precise and versatile approach of quantifying the protein expression levels of three tumor cell lines in situ using a peptide-Au cluster probe. The probe (Au5Peptide3) consists of a peptide with a specific cell membrane epidermal growth factor receptor (EGFR) targeting ability and an Au cluster for both cell membrane EGFR imaging using confocal microscopy and cell membrane EGFR counting by laser ablation inductively coupled plasma mass spectrometry. Utilizing the peptide-Au cluster probe, we successfully quantify the EGFR expression levels of SMMC-7721, KB, and HeLa cells at a single-cell level and differentiate the EGFR expression levels among these cell lines. The peptide-Au cluster probe, with the ability to differentiate the protein expression level of different cell lines, shows exceptional promise for providing reliable predictive and prognostic information of tumors at a single-cell level.
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Sun D, Yao G, Wu L, Wang J, Zhao Z, Zhai J. The effect of metformin on pregnancy outcome, endometrial receptivity & miRNAs in endometrium of patients with PCOS undergoing IVF/ICSI. Fertil Steril 2016. [DOI: 10.1016/j.fertnstert.2016.07.749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Schreiber E, Berosik S, Wenz M, Chang S, Jackson S, Zhai J, Schneider S, Brzoska P. Confirming variants discovered by Next Generation Sequencing (NGS) with Sanger sequencing using innovative bioinformatics tools. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)61054-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Wang H, Li X, Gao L, Zhai J, Liu R, Gao X, Wang D, Zhao L. Atomic structure of a peptide coated gold nanocluster identified using theoretical and experimental studies. NANOSCALE 2016; 8:11454-11460. [PMID: 27193193 DOI: 10.1039/c5nr08727a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Peptide coated gold nanoclusters (AuNCs) have a precise molecular formula and atomic structure, which are critical for their unique applications in targeting specific proteins either for protein analysis or drug design. To date, a study of the crystal structure of peptide coated AuNCs is absent primarily due to the difficulty of obtaining their crystalline phases in an experiment. Here we study a typical peptide coated AuNC (Au24Peptide8, Peptide = H2N-CCYKKKKQAGDV-COOH, Anal. Chem., 2015, 87, 2546) to figure out its atomic structure and electronic structure using a theoretical method for the first time. In this work, we identify the explicit configuration of the essential structure of Au24Peptide8, Au24(Cys-Cys)8, using density functional theory (DFT) computations and optical spectroscopic experiments, where Cys denotes cysteine without H bonded to S. As the first multidentate ligand binding AuNC, Au24(Cys-Cys)8 is characterized as a distorted Au13 core with Oh symmetry covered by two Au(Cys-Cys) and three Au3(Cys-Cys)2 staple motifs in its atomic structure. The most stable configuration of Au24(Cys-Cys)8 is confirmed by comparing its UV-vis absorption spectrum from time-dependent density-functional theory (TDDFT) calculations with optical absorption measurements, and these results are consistent with each other. Furthermore, we carry out frontier molecular orbital (FMO) calculations to elucidate that the electronic structure of Au24(Cys-Cys)8 is different from that of Au24(SR)20 as they have a different Au/S ratio, where SR represents alkylthiolate. Importantly, the different ligand coatings, Cys-Cys and SR, in Au24(Cys-Cys)8 and Au24(SR)20 cause the different Au/S ratios in the coated Au24. The reason is that the Au/S ratio is crucial in determining the size of the Au core of the ligand protected AuNC, and the size of the Au core corresponds to a specific electronic structure. By the adjustment of ligand coatings from alkylthiolate to peptide, the Au/S ratio could be controlled to generate different AuNCs with versatile electronic structures, optical properties and reaction stabilities. Therefore, we propose a universal approach to obtain a specific Au/S ratio of ligand coated AuNCs by adjusting the ligand composition, thus controlling the chemicophysical properties of AuNCs with ultimately the same number of Au atoms.
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Boccitto M, Doshi S, Newton IP, Nathke I, Neve R, Dong F, Mao Y, Zhai J, Zhang L, Kalb R. Opposing actions of the synapse-associated protein of 97-kDa molecular weight (SAP97) and Disrupted in Schizophrenia 1 (DISC1) on Wnt/β-catenin signaling. Neuroscience 2016; 326:22-30. [PMID: 27026592 DOI: 10.1016/j.neuroscience.2016.03.048] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Revised: 02/29/2016] [Accepted: 03/21/2016] [Indexed: 11/28/2022]
Abstract
It has been suggested that synapse-associated protein of 97-kDa molecular weight (SAP97) is a susceptibility factor for childhood and adult neuropsychiatric disorders. SAP97 is a scaffolding protein that shares direct and indirect binding partners with the Disrupted in Schizophrenia 1 (DISC1) gene product, a gene with strong association with neuropsychiatric disorders. Here we investigated the possibility that these two proteins converge upon a common molecular pathway. Since DISC1 modifies Wnt/β-catenin signaling via changes in glycogen synthase kinase 3 beta (GSK3β) phosphorylation, we asked if SAP97 impacts Wnt/β-catenin signaling and GSK3β phosphorylation. We find that SAP97 acts as inhibitor of Wnt signaling activity and can suppress the stimulatory effects of DISC1 on β-catenin transcriptional activity. Reductions in SAP97 abundance also decrease GSK3β phosphorylation. In addition, we find that over expression of DISC1 leads to an increase in the abundance of SAP97, by inhibiting its proteasomal degradation. Our findings suggest that SAP97 and DISC1 contribute to maintaining Wnt/β-catenin signaling activity within a homeostatic range by regulating GSK3β phosphorylation.
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Zhao L, Zhai J, Zhang X, Gao X, Fang X, Li J. Computational design of peptide-Au cluster probe for sensitive detection of α(IIb)β3 integrin. NANOSCALE 2016; 8:4203-4208. [PMID: 26831577 DOI: 10.1039/c5nr09175f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We have designed a novel peptide-Au cluster probe to specifically bind to αIIbβ3 integrin. As indicated by molecular dynamics (MD) simulations, the binding mode of the native ligand of αIIbβ3 integrin, γC peptide, can be realized by the designed probe. More importantly, the peptide-Au probe can provide multiple coating peptides to form additional salt bridges with protein, and the binding stability of the probe is comparable to the native ligand. The designed probe was then successfully synthesized. The specific binding in a cellular environment was validated by colocalization analysis of confocal microscopy. In addition, the binding affinity was confirmed by atomic force microscopy (AFM) based single molecule force spectroscopy. Our results suggest the combination of computational design and experimental verification can be a useful strategy for the development of nanoprobes.
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Gao L, Liu M, Ma G, Wang Y, Zhao L, Yuan Q, Gao F, Liu R, Zhai J, Chai Z, Zhao Y, Gao X. Peptide-Conjugated Gold Nanoprobe: Intrinsic Nanozyme-Linked Immunsorbant Assay of Integrin Expression Level on Cell Membrane. ACS NANO 2015; 9:10979-90. [PMID: 26434981 DOI: 10.1021/acsnano.5b04261] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Precisely quantifying the membrane protein expression level on cell surfaces is of vital importance for early cancer diagnosis and efficient treatment. We demonstrate that gold nanoparticle bioconjugated by a rationally designed peptide as nanoprobe possesses selective labeling and accurate quantification capacity of integrin GPIIb/IIIa on the human erythroleukemia cell line. Through selective recognition and marking of integrin, two-photon photoluminescence of the nanoprobe is exploited for direct observation of protein spatial distribution on cell membrane. More importantly, utilizing intrinsic enzyme-like catalysis property of the nanoprobe, the expression level of integrin on human erythroleukemia cells can be quantitatively counted in an amplified and reliable colorimetric assay without cell lysis and protein extraction process. In addition, the analysis of the correlation between the gold nanoparticle and the membrane protein via relevant inductively coupled plasma mass spectrometry measurement verifies the reliability of the new analytical method. It is anticipated that this facile and efficient strategy holds a great promise for a rapid, precise, and reliable quantification of interested functional membrane proteins on the cell surface.
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Hong H, Xiao H, Yuan H, Zhai J, Huang X. Cloning and characterisation of JAZ gene family in Hevea brasiliensis. PLANT BIOLOGY (STUTTGART, GERMANY) 2015; 17:618-24. [PMID: 25399518 DOI: 10.1111/plb.12288] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2014] [Accepted: 11/10/2014] [Indexed: 05/11/2023]
Abstract
Mechanical wounding or treatment with exogenous jasmonates (JA) induces differentiation of the laticifer in Hevea brasiliensis. JA is a key signal for latex biosynthesis and wounding response in the rubber tree. Identification of JAZ (jasmonate ZIM-domain) family of proteins that repress JA responses has facilitated rapid progress in understanding how this lipid-derived hormone controls gene expression and related physiological processes in plants. In this work, the full-length cDNAs of six JAZ genes were cloned from H. brasiliensis (termed HbJAZ). These HbJAZ have different lengths and sequence diversity, but all of them contain Jas and ZIM domains, and two of them contain an ERF-associated amphiphilic repression (EAR) motif in the N-terminal. Real-time RT-PCR analyses revealed that HbJAZ have different expression patterns and tissue specificity. Four HbJAZ were up-regulated, one was down-regulated, while two were less effected by rubber tapping treatment, suggesting that they might play distinct roles in the wounding response. A yeast two-hybrid assay revealed that HbJAZ proteins interact with each other to form homologous or heterogeneous dimer complexes, indicating that the HbJAZ proteins may expand their function through diverse JAZ-JAZ interactions. This work lays a foundation for identification of the JA signalling pathway and molecular mechanisms of latex biosynthesis in rubber trees.
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Zhang L, Hsu FC, Mojsilovic-Petrovic J, Jablonski AM, Zhai J, Coulter DA, Kalb RG. Structure-function analysis of SAP97, a modular scaffolding protein that drives dendrite growth. Mol Cell Neurosci 2015; 65:31-44. [PMID: 25701814 DOI: 10.1016/j.mcn.2015.02.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Revised: 02/10/2015] [Accepted: 02/17/2015] [Indexed: 10/24/2022] Open
Abstract
Activation of AMPA receptors assembled with the GluA1 subunit can promote dendrite growth in a manner that depends on its direct binding partner, SAP97. SAP97 is a modular scaffolding protein that has at least seven recognizable protein-protein interaction domains. Several complementary approaches were employed to show that the dendrite branching promoting action of full length SAP97 depends on ligand(s) that bind to the PDZ3 domain. Ligand(s) to PDZ1, PDZ2 and I3 domains also contribute to dendrite growth. The ability of PDZ3 ligand(s) to promote dendrite growth depends on localization at the plasma membrane along with GluA1 and SAP97. These results suggest that the assembly of a multi-protein complex at or near synapses is vital for the translation of AMPA-R activity into dendrite growth.
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Zhai J, Wang Y, Xu C, Zheng L, Wang M, Feng W, Gao L, Zhao L, Liu R, Gao F, Zhao Y, Chai Z, Gao X. Facile Approach To Observe and Quantify the αIIbβ3 Integrin on a Single-Cell. Anal Chem 2015; 87:2546-9. [DOI: 10.1021/ac504639u] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Cantó-Pastor A, Mollá-Morales A, Ernst E, Dahl W, Zhai J, Yan Y, Meyers BC, Shanklin J, Martienssen R. Efficient transformation and artificial miRNA gene silencing in Lemna minor. PLANT BIOLOGY (STUTTGART, GERMANY) 2015; 17 Suppl 1:59-65. [PMID: 24989135 PMCID: PMC4458260 DOI: 10.1111/plb.12215] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Accepted: 04/19/2014] [Indexed: 05/21/2023]
Abstract
Despite rapid doubling time, simple architecture and ease of metabolic labelling, a lack of genetic tools in the Lemnaceae (duckweed) has impeded the full implementation of this organism as a model for biological research. Here, we present technologies to facilitate high-throughput genetic studies in duckweed. We developed a fast and efficient method for producing Lemna minor stable transgenic fronds via Agrobacterium-mediated transformation and regeneration from tissue culture. Additionally, we engineered an artificial microRNA (amiRNA) gene silencing system. We identified a Lemna gibba endogenous miR166 precursor and used it as a backbone to produce amiRNAs. As a proof of concept we induced the silencing of CH42, a magnesium chelatase subunit, using our amiRNA platform. Expression of CH42 in transgenic L. minor fronds was significantly reduced, which resulted in reduction of chlorophyll pigmentation. The techniques presented here will enable tackling future challenges in the biology and biotechnology of Lemnaceae.
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Wang Y, Xu C, Zhai J, Gao F, Liu R, Gao L, Zhao Y, Chai Z, Gao X. Label-Free Au Cluster Used for in Vivo 2D and 3D Computed Tomography of Murine Kidneys. Anal Chem 2014; 87:343-5. [DOI: 10.1021/ac503887c] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Bian Y, Weng XS, Zhai J. Multiple intraosseous pseudotumours of distal radius and hands in a patient with haemophilia A: case report. Haemophilia 2014; 20:e432-5. [PMID: 25354774 DOI: 10.1111/hae.12542] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/11/2014] [Indexed: 11/30/2022]
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Liu R, Zhai J, Liu L, Wang Y, Wei Y, Jiang X, Gao L, Zhu H, Zhao Y, Chai Z, Gao X. Spatially marking and quantitatively counting membrane immunoglobulin M in live cells via Ag cluster-aptamer probes. Chem Commun (Camb) 2014; 50:3560-3. [PMID: 24563906 DOI: 10.1039/c3cc49036j] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A probe composed of an aptamer and a silver cluster, where the aptamer targets mIgM of live cells and the silver cluster provides fluorescent imaging and mass quantification of mIgM of live cells, is presented. This new probe simultaneously provides accurate spatial and mass information of mIgM in live cells.
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Bu Z, Guo Y, Su Y, Zhai J, Sun Y. Thin endometrial thickness adversely affects pregnancy rate in patients with different ovarian response undergoing in vitro fertilizatioin (IVF): an analysis of 10,406 transfer cycles. Fertil Steril 2014. [DOI: 10.1016/j.fertnstert.2014.07.109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Yang M, Xu M, Pan X, Hu Z, Li Q, Wei Y, Zhang Y, Rong J, Zhai J, He P, Hu S, Song H, Wu H, Zhan F, Liu S, Gao G, Liu Z, Li Y, Shen L, Huang A, Lin Z, Liao Z, Cao S, Wei Q, Li Q, Lv Q, Qi J, Li T, Jin O, Pan Y, Gu J. Epidemiological comparison of clinical manifestations according to HLA-B*27 carrier status of Chinese ankylosing spondylitis patients. ACTA ACUST UNITED AC 2014; 82:338-43. [PMID: 24131020 DOI: 10.1111/tan.12186] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2012] [Revised: 07/14/2013] [Accepted: 07/22/2013] [Indexed: 02/04/2023]
Abstract
The aim of the study was to investigate and compare the clinical manifestations between HLA-B27(+) and HLA-B27(-) ankylosing spondylitis (AS) patients in order to obtain knowledge of the impact of HLA-B27 status on AS, and to inform clinical treatment. A nationwide epidemiological investigation was performed from November 2008 to October 2010. The demographic data and clinical characteristics, and the status of HLA-B27 were collected using questionnaires and laboratory assay, respectively. A total of 2144 patients (78.5% males and 78.4% HLA-B27(+) AS patients) participated in this study. The percentages of males, patients with family history, and involvement of lumbar spine, thoracic spine and hip joints, were observed to be significantly higher in the HLA-B27(+) AS patients than in their HLA-B27(-) AS peers.
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Li Q, Jiao B, Zhou F, Tan Q, Ma Y, Luo L, Zhai J, Luan Q, Li C, Wang G, Gao T. Comparative study of photodynamic therapy with 5%, 10% and 20% aminolevulinic acid in the treatment of generalized recalcitrant facial verruca plana: a randomized clinical trial. J Eur Acad Dermatol Venereol 2013; 28:1821-6. [PMID: 24267796 DOI: 10.1111/jdv.12319] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Accepted: 10/11/2013] [Indexed: 11/28/2022]
Abstract
BACKGROUND Generalised recalcitrant facial verruca plana responds poorly to current therapeutic options, including cryotherapy, topical drugs and carbon dioxide (CO2 ) laser. Case reports and uncontrolled studies suggested that topical photodynamic therapy (PDT) is effective choice of treatment free from potential complications associated with invasive therapies. AIMS To investigate the efficacy and safety of PDT with different concentrations of photosensitiser in the treatment of verruca plana. MATERIALS & METHODS The two sides of a subject's face were separately randomized to receive aminolevulinic acid (ALA) of 5%, 10% or 20% concentration. All patients were irradiated with 633-nm red light for 339 J/cm(2) total dose. Complete response (CR) rate was assessed on Week 4, 8, and 16 respectively. RESULTS The mean overall clearance rate was 74.1%, 68.8%, and 64.6% on Week 4, 8, and 12, respectively, in the 110 treated sides. The CR rate was lower in the 5%-ALA group than in the 10%-ALA group (14.3% vs. 33.3%, p < 0.05) and 20%-ALA group (14.3% vs. 26.3%, p < 0.05) after 12 weeks. The mean severity of pain measured by visual analogue scale (VAS) scoring was 3.8 (range: 2 to 10, depending on the lesion location). The overall recurrence rate was 16.7% (4/24) on Week 12. Hyperpigmentation was observed in 61% (67/110) of all treated sides. On Week 4, 8, and 16, hyperpigmentation was more developed in the 20%-ALA group than in the other two groups (p < 0.05). DISCUSSION In terms of complete clearance rate, the 5% ALA-PDT group was significantly inferior to the 10% and 20% ALA-PDT groups at each follow-up. In contrast, the 20% ALA group showed a higher incidence rate of transient hyperpigmentation than the other two groups. CONCLUSIONS This randomised clinical trial suggests that PDT with ALA of 10% concentration offers better efficacy and safety than 5% or 20% concentration for generalised recalcitrant facial verruca plana.
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Luboz V, Zhang Y, Johnson S, Song Y, Kilkenny C, Hunt C, Woolnough H, Guediri S, Zhai J, Odetoyinbo T, Littler P, Fisher A, Hughes C, Chalmers N, Kessel D, Clough PJ, Ward J, Phillips R, How T, Bulpitt A, John NW, Bello F, Gould D. ImaGiNe Seldinger: first simulator for Seldinger technique and angiography training. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 2013; 111:419-434. [PMID: 23787028 DOI: 10.1016/j.cmpb.2013.05.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2011] [Revised: 01/07/2013] [Accepted: 05/23/2013] [Indexed: 06/02/2023]
Abstract
In vascular interventional radiology, procedures generally start with the Seldinger technique to access the vasculature, using a needle through which a guidewire is inserted, followed by navigation of catheters within the vessels. Visual and tactile skills are learnt in a patient apprenticeship which is expensive and risky for patients. We propose a training alternative through a new virtual simulator supporting the Seldinger technique: ImaGiNe (imaging guided interventional needle) Seldinger. It is composed of two workstations: (1) a simulated pulse is palpated, in an immersive environment, to guide needle puncture and (2) two haptic devices provide a novel interface where a needle can direct a guidewire and catheter within the vessel lumen, using virtual fluoroscopy. Different complexities are provided by 28 real patient datasets. The feel of the simulation is enhanced by replicating, with the haptics, real force and flexibility measurements. A preliminary validation study has demonstrated training effectiveness for skills transfer.
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Zhai J, Meyers BC. Deep sequencing from hen1 mutants to identify small RNA 3' modifications. COLD SPRING HARBOR SYMPOSIA ON QUANTITATIVE BIOLOGY 2013; 77:213-9. [PMID: 23393108 DOI: 10.1101/sqb.2013.77.014779] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
microRNAs (miRNAs) function via targeting of messenger RNAs, suppressing protein levels, and playing important roles in biological processes of plants and animals. The pathway for miRNA biogenesis is well established, but less is known about miRNA turnover, largely because of difficulties in capturing miRNAs during the process of decay, in which they are both rare and ephemeral. The HEN1 protein methylates the 3' terminus of small RNAs (sRNAs), protecting them from poly-urydilation and degradation. Recent progress using deep sequencing to study sRNAs in hen1 reveals the potential for hen1 mutants to serve as a platform for studies of miRNA turnover, with the sequencing data providing unprecedented precision and detail in the characterization of 3' modifications.
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