576
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Che S, Dao R, Zhang W, Lv X, Li H, Wang C. Designing an anion-functionalized fluorescent ionic liquid as an efficient and reversible turn-off sensor for detecting SO2. Chem Commun (Camb) 2017; 53:3862-3865. [DOI: 10.1039/c7cc00676d] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel anion-functionalized fluorescent ionic liquid was designed as an efficient turn-off fluorescent sensor for gaseous SO2, which exhibited high selectivity, good quantification, and excellent reversibility.
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577
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Jia W, Sun W, Xia C, Yang X, Cao Z, Zhang W. Copolymerization modification of poly(vinyltriethoxysilane) membranes for ethanol recovery by pervaporation. RSC Adv 2017. [DOI: 10.1039/c7ra09419a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel thin PVTES-HSO membrane with an optimal PV performance greatly transcending the upper limit of PDMS membranes is prepared.
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578
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Tian X, Guo X, Zhuo Z, Zeng R, Fang X, Xu X, Li H, Shen Y, Zhang W. Prenylated phenylpropanoids with unprecedented skeletons from Illicium burmanicum. RSC Adv 2017. [DOI: 10.1039/c7ra01143a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Two hetero adducts (1 and 2) which showed cytotoxic on A549 and HCT116 cells at 6.40–7.76 μM were isolated from Illicium burmanicum.
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579
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Kong Q, Zhao HY, Tian K, Duan BF, Hu YY, Hu TS, Zhang YG, Zhang WD, Zhang FQ. [Molecular analysis of hemagglutinin and neuraminidase genes of avian influenza virus H5N6 subtype in the border of Yunnan Province from 2014 to 2015]. ZHONGHUA YU FANG YI XUE ZA ZHI [CHINESE JOURNAL OF PREVENTIVE MEDICINE] 2016; 50:1105-1107. [PMID: 28057117 DOI: 10.3760/cma.j.issn.0253-9624.2016.12.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
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580
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Lin M, Zhang W, Su J. Toxic polyacetylenes in the genus Bupleurum (Apiaceae) - Distribution, toxicity, molecular mechanism and analysis. JOURNAL OF ETHNOPHARMACOLOGY 2016; 193:566-573. [PMID: 27693772 DOI: 10.1016/j.jep.2016.09.052] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Revised: 09/28/2016] [Accepted: 09/28/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The genus Bupleurum includes approximately 200 species that are widely distributed in the Northern Hemisphere, Eurasia and North Africa. Certain species of this genus have long been used as antiphlogistic, antipyretic and analgesic agents in traditional folk medicine. As described in the Chinese Pharmacopoeia, the roots of Bupleurum chinense DC. and B. scorzonerifolium Willd. are the herbal materials that compose Chaihu (Radix Bupleuri), a well-known TCM herb. AIM OF THE REVIEW This review aims to provide up-to-date and comprehensive information regarding the distribution, toxicity, molecular mechanism and relatively new methods for the qualitative and quantitative determination of polyacetylenes in different Bupleurum species. METHOD The information needed for this paper were sourced from publishing sites such as Elsevier, science Direct, PubMed; electronic search engines such as Scopus and Web of Science, Google scholar; other scientific database sites for chemicals such as ChemSpider, PubChem, SciFinder, and also from on line books. RESULTS Polyacetylenes, which are widely distributed in genus Bupleurum of the Apiaceae family, have high toxicity. Among polyacetylenes, bupleurotoxin, acetylbupleurotoxin and oenanthotoxin have strong neurotoxicity. Through previous research, it was found that the toxicity of Bupleurum polyacetylenes manifested as epileptic seizures, with the target of toxicity being the brain. The neurotoxicity of polyacetylenes exhibits a relationship with the γ-aminobutyric acid (GABA) receptor pathway, and polyacetylenes have been shown to inhibit GABA-induced currents (IGABA) in a competitive manner. CONCLUSIONS The plants of genus Bupleurum have been used in traditional medicine for thousands of years. However, certain species of this genus are poisonous, and it was attributed to the high content of polyacetylenes. The present review indicates that certain polyacetylenes in the genus Bupleurum have highly neurotoxic effects. The major challenge with regard to toxic polyacetylenes is to test their neurotoxic effects in vivo as well as in further preclinical studies, which will require large amounts of purified polyacetylenes. More reference substances should be prepared, and sophisticated analytical technologies should be developed to comprehensively assess the quality of Radix Bupleuri herbs. These investigations will be helpful for further utilization of the plants of genus Bupleurum.
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Peng L, Li Z, Li X, Xue H, Zhang W, Chen G. Integrating Sugar and Dopamine into One Polymer: Controlled Synthesis and Robust Surface Modification. Macromol Rapid Commun 2016; 38. [DOI: 10.1002/marc.201600548] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2016] [Revised: 10/25/2016] [Indexed: 11/07/2022]
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582
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Johnson L, Siddiqui A, Molehin A, Zhang W, Rojo J. Evaluating Schistosoma mansoni Antigen (Sm-p80) Vaccine Cross-Species Protection Against Schistosoma haematobium in Hamsters. Open Forum Infect Dis 2016. [DOI: 10.1093/ofid/ofw172.610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Zhang Y, Yang S, Liu X, Li M, Zhang W, Yang H, Hu D, Gao C, Duan G. Management of ST-segment elevation myocardial infarction in predominantly rural central China: A retrospective observational study. Medicine (Baltimore) 2016; 95:e5584. [PMID: 27930573 PMCID: PMC5266045 DOI: 10.1097/md.0000000000005584] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 11/10/2016] [Accepted: 11/15/2016] [Indexed: 11/26/2022] Open
Abstract
The degree of adherence to current guidelines for clinical management of ST-segment elevation myocardial infarction (STEMI) is known in developed countries and large Chinese cities, but in predominantly rural areas information is lacking. We assessed the application of early reperfusion therapy for STEMI in secondary and tertiary hospitals in Henan province in central China.Data were retrospectively collected from 5 secondary and 4 tertiary hospitals in Henan concerning STEMI patients treated from January 2011 to January 2012, including management strategy, delay time, and inhospital mortality.Among 1311 STEMI patients, 613 and 698 were treated at secondary and tertiary hospitals, respectively. Overall, 460 (35.1%) patients received early reperfusion therapy including thrombolysis in 383 patients and primary percutaneous coronary intervention in 77. Compared with secondary centers, early (37.2% vs 32.6%) and successful reperfusion (34.5% vs 25.1%) was significantly higher, whereas thrombolysis was lower in the tertiary hospitals (26.4% vs 32.5%). Median symptom onset-to-first medical contact, and door-to-needle and door-to-balloon time was 168, 18, and 60 minutes, respectively. Delay times closely approached recommended guidelines, especially in secondary centers. Use of recommended pharmacotherapy was low, particularly in secondary hospitals. Inhospital mortality was 5.8%, and similar between secondary and tertiary hospitals (6.0% vs 5.6%; P = 0.183).Two-thirds of STEMI patients did not receive early reperfusion, and tertiary hospitals mostly failed to take advantage of around-the-clock primary percutaneous coronary intervention. Actions such as referrals are warranted to shorten prehospital delay, and the concerns of patients and doctors regarding reperfusion risk should be addressed.
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Wang J, Rivero M, Muñoz Bonilla A, Sanchez-Marcos J, Xue W, Chen G, Zhang W, Zhu X. Natural RAFT Polymerization: Recyclable-Catalyst-Aided, Opened-to-Air, and Sunlight-Photolyzed RAFT Polymerizations. ACS Macro Lett 2016; 5:1278-1282. [PMID: 35614740 DOI: 10.1021/acsmacrolett.6b00818] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The successful sunlight-photolyzed reversible addition-fragmentation chain transfer (RAFT) photopolymerization can be reversibly activated and deactivated by irradiation with sunlight in the absence of photocatalyst and photoinitiator. In the present work, the thiocarbonylthio compounds (dithiobenzoate, trithiocarbonate, and xanthate) can all be employed to carry out the polymerization under sunlight irradiation acting as an initiator, chain transfer agent, and termination agent. Moreover, it was demonstrated that the recyclable-catalyst-aided, opened-to-air, and sunlight-photolyzed RAFT (ROS-RAFT) polymerizations can be successfully carried out to fabricate precise and predictable polymers in the presence of the recyclable magnetic semiconductor nanoparticles (NPs). The oxygen tolerance is likely attributed to a specific interaction between NPs and oxygen.
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585
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Tian X, Yang N, Li B, Zhang J, Xu X, Yue R, Li H, Chen L, Shen Y, Zhang W. Inhibition of HL-60 cell growth via cell cycle arrest and apoptosis induction by a cycloartane-labdane heterodimer from Pseudolarix amabilis. Org Biomol Chem 2016; 14:2618-24. [PMID: 26906292 DOI: 10.1039/c5ob02661j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Pseudolaridimer C (), a rarely encountered cycloartane-labdane Diels-Alder adduct was isolated from the cones of Pseudolarix amabilis. The structure and absolute configuration of were established by comprehensive NMR and CD spectral analysis. The WST-8 assay indicated that time and dose dependently inhibited the proliferation of human leukemia cells HL-60 at 1-10 μM. DAPI and Annexin V-FITC/PI double staining method, and DNA ladder experiments all proved that had significant dose-dependent effects on HL-60 cell apoptosis. A further mechanism study indicated that the apoptosis was associated with the cell cycle arrest during the G2/M phase, and the activation of caspase-9, -3, -7, and poly-(ADP-ribose)-polymerase (PARP).
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586
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Chen K, Shi G, Zhang W, Li H, Wang C. Computer-Assisted Design of Ionic Liquids for Efficient Synthesis of 3(2H)-Furanones: A Domino Reaction Triggered by CO2. J Am Chem Soc 2016; 138:14198-14201. [DOI: 10.1021/jacs.6b08895] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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587
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Guo D, Li J, Lin H, Zhou Y, Chen Y, Zhao F, Sun H, Zhang D, Li H, Shoichet BK, Shan L, Zhang W, Xie X, Jiang H, Liu H. Design, Synthesis, and Biological Evaluation of Novel Tetrahydroprotoberberine Derivatives (THPBs) as Selective α 1A-Adrenoceptor Antagonists. J Med Chem 2016; 59:9489-9502. [PMID: 27709945 DOI: 10.1021/acs.jmedchem.6b01217] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel series of tetrahydroprotoberberine derivatives (THPBs) were designed, synthesized, and evaluated as selective α1A-adrenergic receptors (AR) antagonists for the treatment of benign prostatic hyperplasia. On the basis of the pharmacophore model of the marketed drug silodosin, THPBs were modified by introducing an indole segment into their core scaffolds. In calcium assays, 7 out of 32 compounds displayed excellent antagonistic activities against α1A-ARs, with IC50 less than 250 nM. Among them, compound (S)-27 had the most potent biological activity; its IC50 toward α1A-AR was 12.8 ± 2.2 nM, which is 781 and 20 times more selective than that toward α1B- and α1D-AR, respectively. In the functional assay using isolated rat tissues, compound (S)-27 inhibited norepinephrine-induced urethra smooth muscle contraction potently (IC50 = 0.5 ± 0.3 nM), without inhibiting the aortic contraction (IC50 > 1000 nM), displaying a better tissue selectivity than the marketed drug silodosin. Additional results of preliminary safety studies (acute toxicity and hERG inhibition) and pharmacokinetics studies indicated the potential druggability for compound (S)-27 which is a promising lead for the development of selective α1A-AR antagonists for the treatment of BPH.
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588
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Zhang W, Chao L, Yang Q, Wang Q, Fang Y, Wang S. Litter quality mediated nitrogen effect on plant litter decomposition regardless of soil fauna presence. Ecology 2016; 97:2834-2843. [DOI: 10.1002/ecy.1515] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 05/16/2016] [Accepted: 06/13/2016] [Indexed: 11/08/2022]
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589
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Tao J, Mao L, Zhou B, Liu Q, Yang A, Wei G, Liu R, Zhang WD, Xu W, Ye J. Simultaneous determination of ginsenosides and bufadienolides in rat plasma after the oral administration of Shexiang Baoxin Pill for pharmacokinetic study by liquid chromatography tandem mass spectrometry following solid-phase extraction. Biomed Chromatogr 2016; 31. [DOI: 10.1002/bmc.3816] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 08/09/2016] [Accepted: 08/13/2016] [Indexed: 01/26/2023]
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590
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Yi B, Zhang W. A nonlinear updated gain observer for MIMO systems: Design, analysis and application to marine surface vessels. ISA TRANSACTIONS 2016; 64:129-140. [PMID: 27282518 DOI: 10.1016/j.isatra.2016.05.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Revised: 05/02/2016] [Accepted: 05/16/2016] [Indexed: 06/06/2023]
Abstract
In this paper, the state estimation problem of a class of multi-input-multi-output nonlinear systems with measurement noise is studied. We develop an extended updated-gain high gain observer to make a tradeoff between reconstruction speed and measurement noise attenuation. The designed observer, whose gains are driven by nonlinear functions of the available output estimation errors, has the ability to reconstruct system states quickly and reduce the effect of measurement noise. We establish that, if there exists a state feedback law exponentially stabilizing the system with respect to an invariant set, the estimations and estimation errors are bounded. Besides, the trajectories of state- and output-feedback (based on the proposed observer) are sufficiently close, namely performance recovery. The observer performance is illustrated by various examples in marine control, including a case of transformation into the predefined structure.
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591
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Zhang W, Sun G, Aitken D, Likhodii S, Liu M, Martin G, Furey A, Randell E, Rahman P, Jones G, Zhai G. Lysophosphatidylcholines to phosphatidylcholines ratio predicts advanced knee osteoarthritis. Rheumatology (Oxford) 2016; 55:1566-74. [PMID: 27160277 PMCID: PMC5854095 DOI: 10.1093/rheumatology/kew207] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Revised: 03/31/2016] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVE To identify novel biomarker(s) for predicting advanced knee OA. METHODS Study participants were derived from the Newfoundland Osteoarthritis Study and the Tasmania Older Adult Cohort Study. All knee OA cases were patients who underwent total knee replacement (TKR) due to primary OA. Metabolic profiling was performed on fasting plasma. Four thousand and eighteen plasma metabolite ratios that were highly correlated with that in SF in our previous study were generated as surrogates for joint metabolism. RESULTS The discovery cohort included 64 TKR cases and 45 controls and the replication cohorts included a cross-sectional cohort of 72 TKR cases and 76 controls and a longitudinal cohort of 158 subjects, of whom 36 underwent TKR during the 10-year follow-up period. We confirmed the previously reported association of the branched chain amino acids to histidine ratio with advanced knee OA (P = 9.3 × 10(-7)) and identified a novel metabolic marker-the lysophosphatidylcholines (lysoPCs) to phosphatidylcholines (PCs) ratio-that was associated with advanced knee OA (P = 1.5 × 10(-7)) after adjustment for age, sex and BMI. When the subjects of the longitudinal cohort were categorized into two groups based on the optimal cut-off of the ratio of 0.09, we found the subjects with the ratio ⩾0.09 were 2.3 times more likely to undergo TKR than those with the ratio <0.09 during the 10-year follow-up (95% CI: 1.2, 4.3, P = 0.02). CONCLUSION We identified the ratio of lysoPCs to PCs as a novel metabolic marker for predicting advanced knee OA. Further studies are required to examine whether this ratio can predict early OA change.
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592
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Pang B, Liu X, Jin Q, Zhang W. Exponentially stable guaranteed cost control for continuous and discrete-time Takagi–Sugeno fuzzy systems. Neurocomputing 2016. [DOI: 10.1016/j.neucom.2016.04.041] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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593
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Zhao Q, Wang Z, Wang Z, Wu L, Zhang W. Aspirin may inhibit angiogenesis and induce autophagy by inhibiting mTOR signaling pathway in murine hepatocarcinoma and sarcoma models. Oncol Lett 2016; 12:2804-2810. [PMID: 27698862 DOI: 10.3892/ol.2016.5017] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Accepted: 06/16/2016] [Indexed: 01/06/2023] Open
Abstract
Aspirin is known to have inhibitory effects on growth development in various types of tumor. In previous studies, it was observed to inhibit angiogenesis by downregulating the expression of vascular endothelial growth factor-A (VEGF-A). In the present study, murine H22 hepatocarcinoma and S180 sarcoma models were used to ascertain whether aspirin could inhibit angiogenesis and promote autophagy in tumors. Tumor-bearing mice were randomly divided into four groups with 10 mice per group: i) no treatment; ii) low-dose aspirin (100 mg/kg); iii) high-dose aspirin (400 mg/kg); iv) everolimus group (4 mg/kg). The effects of high-dose aspirin were validated through preliminary experiments. The drug treatment was administered every day for 14 days. The tumor size was measured every other day and then the tumor growth curve was plotted, and the tumor inhibitory rates were calculated. The expression levels of phosphorylated mammalian target of rapamycin (p-mTOR), hypoxia-inducible factor-1α (HIF-1α), VEGF-A, UNC-51-like kinase-1 (ULK1) and microtubule-associated protein 1 light chain 3A (LC3A) were detected by immunohistochemistry and western blot analysis, respectively. We observed that tumor growth delay was achieved in both H22 hepatocarcinoma and S180 sarcoma models following treatment with aspirin. The tumor growth inhibition rates induced by low and high-dose aspirin and everolimus were 19.6, 33.6 and 53.7% (P<0.05) in H22 hepatocarcinoma, and 25.7, 40.6 and 48.7% (P<0.05) in S180 sarcoma. The immunohistochemistry and western blot analysis data from the models revealed that the expression of p-mTOR, HIF-1α and VEGF-A was decreased, while the expression of ULK1 and LC3A was increased following treatment with aspirin and everolimus. The changes were more apparent in the high-dose aspirin and everolimus groups (P<0.01). The inhibitory action of aspirin and everolimus on tumor angiogenesis may be through inhibiting the expression of p-mTOR, HIF-1α and VEGF-A. Alternatively, aspirin may induce autophagy by inhibiting the mTOR signaling target and then increasing ULK1 and LC3A.
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594
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Wang H, Chang T, Li X, Zhang W, Hu Z, Jonas AM. Scaled down glass transition temperature in confined polymer nanofibers. NANOSCALE 2016; 8:14950-14955. [PMID: 27476991 DOI: 10.1039/c6nr04459j] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Arrays of polymer nanostructures have been widely used in many novel devices and nanofabrication methods. The glass transition temperature, which is a key parameter influencing the long-term stability of polymer nanostructures, has not yet been systematically studied and well understood. Here we study this technological and fundamental issue with polymers of different values of molar mass M confined in nanocylinders of a varying diameter D. The glass transition temperature Tg loses its dependence on the molar mass for D ≲ 100 nm, a range in which the relative depression of Tg varies as D(-0.44). For higher cylinder diameters, Tg progressively recovers its dependence on the molar mass. This is quantitatively reproduced by a model based on an equilibrium interfacial excess of free volume, which needs to be created unless provided by the chain ends. Our findings suggest that the structural perturbations during nanofabrication may strongly affect the long-term stability of arrays of polymer nanostructures.
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Zhang W, Cuperus T, van Dijk A, Skjødt K, Hansen S, Haagsman HP, Veldhuizen EJA. Developmental regulation of chicken surfactant protein A and its localization in lung. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2016; 61:80-87. [PMID: 26976230 DOI: 10.1016/j.dci.2016.03.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Revised: 03/10/2016] [Accepted: 03/10/2016] [Indexed: 06/05/2023]
Abstract
Surfactant Protein A (SP-A) is a collagenous C-type lectin (collectin) that plays an important role in the early stage of the host immune response. In chicken, SP-A (cSP-A) is expressed as a 26 kDa glycosylated protein in the lung. Using immunohistochemistry, cSP-A protein was detected mainly in the lung lining fluid covering the parabronchial epithelia. Specific cSP-A producing epithelial cells, resembling mammalian type II cells, were identified in the parabronchi. Gene expression of cSP-A markedly increased from embryonic day 14 onwards until the time of hatch, comparable to the SP-A homologue chicken lung lectin, while mannan binding lectin and collectins CL-L1 and CL-K1 only showed slightly changed expression during development. cSP-A protein could be detected as early as ED 18 in lung tissue using Western blotting, and expression increased steadily until day 28 post-hatch. Our observations are a first step towards understanding the role of this protein in vivo.
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596
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Pan Y, Zhang Y, Fan C, Zhang Y, Yan S, Jin H, Zhang W. Lignans from the Whole Plants of Hedyotis uncinella. Nat Prod Commun 2016; 11:1115-1116. [PMID: 30725571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023] Open
Abstract
Two new lignans, named (7R, 8S)-balanophonin (1) and (7R, 8S)-tomentosanan A (2), together with eight known lignans, burselignan (3), (+)-isolariciresinol (4), (+)-lyoniresinol (5), 5-methoxy-(+)-isolariciresinol (6), (-)-syringaresinol (7), (+)-epipinoresinol (8), (-)-(7'S, 8S, 8'R)-4,4'-dihydroxy-3, 3', 5, 5'-. tetramethoxy-7', 9-epoxy-lignan-9'-ol-7-one (9), and (-)-(7R, 8S)-dihydrodehydrodiconiferyl alcohol (10) were isolated from the whole plants of Hedyotis uncinella Hook. et Am. Structures of these compounds were elucidated through 1H NMR, "C NMR, 2D NMR, ESI-MS and CD data.
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Pan Y, Zhang Y, Fan C, Zhang Y, Yan S, Jin H, Zhang W. Lignans from the Whole Plants of Hedyotis uncinella. Nat Prod Commun 2016. [DOI: 10.1177/1934578x1601100821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Two new lignans, named (7R, 8 S)-balanophonin (1) and (7R, 8 S)-tomentosanan A (2), together with eight known lignans, burselignan (3), (+)-isolariciresinol (4), (+)-lyoniresinol (5), 5-methoxy-(+)-isolariciresinol (6), (-)-syringaresinol (7), (+)-epipinoresinol (8), (-)-(7′ S, 8 S, 8′ R)-4,4′-dihydroxy-3, 3′, 5, 5′-tetramethoxy-7, 9-epoxy-lignan-9′-ol-7-one (9), and (-)-(7 R, 8 S)-dihydrodehydrodiconiferyl alcohol (10) were isolated from the whole plants of Hedyotis uncinella Hook. et Arn. Structures of these compounds were elucidated through 1H NMR, 13C NMR, 2D NMR, ESI-MS and CD data.
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598
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Yu J, Du Y, Lu Y, Zhang W, Zhang D, Wang G, Li C. Application of DTI and ARFI imaging in differential diagnosis of parotid tumours. Dentomaxillofac Radiol 2016; 45:20160100. [PMID: 27351345 DOI: 10.1259/dmfr.20160100] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
OBJECTIVES To explore the utility of diffusion tensor imaging (DTI) and acoustic radiation force impulse (ARFI) imaging in the diagnosis of parotid tumours. METHODS 51 patients with parotid tumours were examined with DTI on 3.0-T MRI and ARFI imaging on an ultrasound scanner before surgery. Values of apparent diffusion coefficient (ADC), fractional anisotropy (FA) and shear-wave velocity (SWV) were calculated and analyzed with independent samples Wilcoxon-Mann-Whitney test. Cut-off values, sensitivity and specificity were calculated with receiver-operating characteristic (ROC) curve analysis. The value of combination was calculated through parallel test for the cut-off value of ADC, FA and SWV (combination = 0 or 1); then, ROC analysis was performed with pathological results as the gold standard to calculate the sensitivity and specificity for the combination of the three parameters distinguishing benign and malignant parotid tumours. Pathological diagnosis for every patient was made post-operatively from the tumour tissue taken during operation. RESULTS There was a significant difference between benign and malignant tumours in the values of ADC, FA and SWV (p = 0.032, p = 0.011 and p < 0.0001); a significant difference in the values was also found between pleomorphic adenoma and malignant tumour (p = 0.0012, p < 0.0001 and p = 0.0002). The diagnosis cut-off points between benign and malignant tumours for ADC, FA and SWV were 1.02 × 10(-3) mm(2) s(-1), 0.24 and 2.76 m s(-1), respectively; the sensitivity for ADC, FA and SWV was 87.50, 62.50 and 68.75%; the specificity was 45.71, 82.86 and 97.14%. Analysis of the combination of the three parameters increased the sensitivity, specificity, Youden index and area under the ROC curve compared with analysis of each parameter alone for distinguishing benign and malignant tumours. CONCLUSIONS The diagnostic value of the combination of the three parameters for distinguishing benign and malignant parotid tumours is the best; SWV is the preferred indicator. Parameters of DTI and ARFI may reflect the histological characteristics of parotid tumours and predict benignancy and malignancy and could provide quantitative information about the tumour. Combination of DTI with ARFI imaging had obvious advantage for the diagnosis of parotid tumours than each alone.
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599
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Du L, Wang Y, Zhang W, Shen C, Luo G. Preparation of nonaqueous silver nanosuspensions by in situ dispersion of the surface-modified nanoparticles. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.04.044] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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600
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Wei Y, Gao N, Zhang Z, Zu X, Hu Z, Zhang W, Yin J, Liu X. Metabolic changes at the early stage of sepsis induced by cecal ligation and puncture in rats and the interventional effects of Huang-Lian-Jie-Du-Tang. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1026:176-182. [DOI: 10.1016/j.jchromb.2015.08.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 07/16/2015] [Accepted: 08/07/2015] [Indexed: 12/24/2022]
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