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Wang L, Yuan YF, Zhang XT, Chen Q, Guo SY. Co 3O 4 hollow nanospheres/carbon-assembled mesoporous polyhedron with internal bubbles encapsulating TiO 2 nanosphere for high-performance lithium ion batteries. NANOTECHNOLOGY 2019; 30:355401. [PMID: 31067517 DOI: 10.1088/1361-6528/ab2002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Co3O4 hollow nanospheres 15 nm in the diameter were assembled to the mesoporous polyhedron together with carbon. Within the Co3O4 polyhedrons, the bubbles 300-500 nm in diameter were uniformly generated. Every bubble further encapsulated one TiO2 nanosphere, forming a unique sphere-bubble structure. The specific surface area and the pore volume were calculated to be 97.85 and 0.31 cm3 g-1. When evaluated as anode material for lithium ion batteries, the as-prepared material exhibited superior lithium storage properties with high specific capacity, excellent cycling stability and good rate capability. After 400 cycles, the discharge capacity of 609 mAh g-1 was still delivered at current density of 335 mA g-1. Even at a high current density of 2000 mA g-1, the reversible capacity reached 296 mAh g-1. The outstanding electrochemical performance was attributed to the unique hybrid structure, which avoids nanomaterial aggregation, promotes ion diffusion and electron transfer, accommodates volume change of Co3O4 during (de)lithiation process, enhances structure strength, cycling stability and space utilization ratio of the hollow material.
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Zhang XT, Han W. [Application value of heparin-binding protein in early diagnosis of severe infection in silicosis patients]. ZHONGHUA YU FANG YI XUE ZA ZHI [CHINESE JOURNAL OF PREVENTIVE MEDICINE] 2019; 53:835-839. [PMID: 31378045 DOI: 10.3760/cma.j.issn.0253-9624.2019.08.007] [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 explore the value of heparin-binding protein (HBP) in early diagnosis of severe infection in silicosis patients. Methods: From January 2017 to June 2018, fifty silicosis patients with severe infection and fity without infection were recruited in the Second Affiliated Hospital of Xuzhou Medical University. In the severe infection group, the time of patients diagnosed with severe infection was set as the reference point for time. Blood samples were selected from the hospital inspection system sample library at the time of 24, 48, and 72 hours prior to the reference point. In the non-infection group, blood samples were selected within 24 hours of admission. The blood samples were tested for the levels of HBP, C-reactive protein (CRP), procalcitonin (PCT), and white blood cell (WBC) count. The area under the curve (AUC) of the receiver operating characteristic (ROC) curve, sensitivity, specificity and Youden index (YI) were used to evaluate the diagnostic efficacy of each indicator. Results: The HBP levels at 72, 48, 24, and 0 hours before the diagnosis in the severe infection group were significantly higher than those in the non-infection group (all of the P values <0.001), and decreased with the prolonged time before diagnosis. The ROC curve showed that the AUC of HBP at 72, 48, 24, and 0 h before the diagnosis in the severe infection group [0.828 (0.750-0.907), 0.966 (0.920-0.998), 0.967 (0.961-0.998), 0.997 (0.994-0.999)] was higher than that of PCT [0.563 (0.450-0.677), 0.687 (0.581-0.794), 0.726 (0.622-0.829), 0.982 (0.973-0.986)] and CRP [0.564 (0.449-0.680), 0.648 (0.535-0.761), 0.705 (0.594-0.817), 0.963 (0.924-0.983)] and WBC [0.492 (0.377-0.607), 0.497 (0.383-0.612), 0.628 (0.519-0.738), 0.700 (0.598-0.802)] at the corresponding time. The sensitivity, specificity and YI of HBP were 88.9%-97.6%, 77.1%-98.4% and 0.66-0.96 at 72, 36, 24 and 0 h before diagnosis, respectively. Conclusion: Heparin-binding protein can be used for early diagnosis of severe infection in silicosis patients.
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Adey D, An FP, Balantekin AB, Band HR, Bishai M, Blyth S, Cao D, Cao GF, Cao J, Chan YL, Chang JF, Chang Y, Chen HS, Chen SM, Chen Y, Chen YX, Cheng J, Cheng ZK, Cherwinka JJ, Chu MC, Chukanov A, Cummings JP, Deng FS, Ding YY, Diwan MV, Dolgareva M, Dwyer DA, Edwards WR, Gonchar M, Gong GH, Gong H, Gu WQ, Guo L, Guo XH, Guo YH, Guo Z, Hackenburg RW, Hans S, He M, Heeger KM, Heng YK, Higuera A, Hsiung YB, Hu BZ, Hu JR, Hu T, Hu ZJ, Huang HX, Huang XT, Huang YB, Huber P, Huo W, Hussain G, Jaffe DE, Jen KL, Ji XL, Ji XP, Johnson RA, Jones D, Kang L, Kettell SH, Koerner LW, Kohn S, Kramer M, Langford TJ, Lebanowski L, Lee J, Lee JHC, Lei RT, Leitner R, Leung JKC, Li C, Li F, Li HL, Li QJ, Li S, Li SC, Li SJ, Li WD, Li XN, Li XQ, Li YF, Li ZB, Liang H, Lin CJ, Lin GL, Lin S, Lin SK, Lin YC, Ling JJ, Link JM, Littenberg L, Littlejohn BR, Liu JC, Liu JL, Liu Y, Liu YH, Loh CW, Lu C, Lu HQ, Lu JS, Luk KB, Ma XB, Ma XY, Ma YQ, Malyshkin Y, Marshall C, Martinez Caicedo DA, McDonald KT, McKeown RD, Mitchell I, Mora Lepin L, Napolitano J, Naumov D, Naumova E, Ochoa-Ricoux JP, Olshevskiy A, Pan HR, Park J, Patton S, Pec V, Peng JC, Pinsky L, Pun CSJ, Qi FZ, Qi M, Qian X, Qiu RM, Raper N, Ren J, Rosero R, Roskovec B, Ruan XC, Steiner H, Sun JL, Tang W, Taychenachev D, Treskov K, Tse WH, Tull CE, Viren B, Vorobel V, Wang CH, Wang J, Wang M, Wang NY, Wang RG, Wang W, Wang W, Wang X, Wang YF, Wang Z, Wang Z, Wang ZM, Wei HY, Wei LH, Wen LJ, Whisnant K, White CG, Wise T, Wong HLH, Wong SCF, Worcester E, Wu Q, Wu WJ, Xia DM, Xing ZZ, Xu JL, Xue T, Yang CG, Yang H, Yang L, Yang MS, Yang MT, Yang YZ, Ye M, Yeh M, Young BL, Yu HZ, Yu ZY, Yue BB, Zeng S, Zhan L, Zhang C, Zhang CC, Zhang FY, Zhang HH, Zhang JW, Zhang QM, Zhang R, Zhang XF, Zhang XT, Zhang YM, Zhang YM, Zhang YX, Zhang YY, Zhang ZJ, Zhang ZP, Zhang ZY, Zhao J, Zheng P, Zhou L, Zhuang HL, Zou JH. Measurement of the Electron Antineutrino Oscillation with 1958 Days of Operation at Daya Bay. PHYSICAL REVIEW LETTERS 2018; 121:241805. [PMID: 30608728 DOI: 10.1103/physrevlett.121.241805] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Indexed: 06/09/2023]
Abstract
We report a measurement of electron antineutrino oscillation from the Daya Bay Reactor Neutrino Experiment with nearly 4 million reactor ν[over ¯]_{e} inverse β decay candidates observed over 1958 days of data collection. The installation of a flash analog-to-digital converter readout system and a special calibration campaign using different source enclosures reduce uncertainties in the absolute energy calibration to less than 0.5% for visible energies larger than 2 MeV. The uncertainty in the cosmogenic ^{9}Li and ^{8}He background is reduced from 45% to 30% in the near detectors. A detailed investigation of the spent nuclear fuel history improves its uncertainty from 100% to 30%. Analysis of the relative ν[over ¯]_{e} rates and energy spectra among detectors yields sin^{2}2θ_{13}=0.0856±0.0029 and Δm_{32}^{2}=(2.471_{-0.070}^{+0.068})×10^{-3} eV^{2} assuming the normal hierarchy, and Δm_{32}^{2}=-(2.575_{-0.070}^{+0.068})×10^{-3} eV^{2} assuming the inverted hierarchy.
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Si XY, Wang HP, Zhang XT, Wang MZ, Zhang L. [Efficacy and safety of anlotinib in 16 patients with advanced non-small cell lung cancer]. ZHONGHUA NEI KE ZA ZHI 2018; 57:830-834. [PMID: 30392239 DOI: 10.3760/cma.j.issn.0578-1426.2018.11.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the efficacy and safety of anlotinib in patients with advanced non-small cell lung cancer (NSCLC). Methods: Patients with stage ⅢB/Ⅳ NSCLC who progressed after two lines or more regimens were randomized into anlotinib group (12 mg daily from day 1 to 14 of a 21-day cycle) or placebo group with ratio of 2∶1. Study drugs or placebo were given until disease progression or intolerable toxicity. The primary endpoint was overall survival (OS), and the second endpoints were progression free survival (PFS), objective response rate, and disease control rate. Results: Between April 2015 and December 2015, twenty-four patients were assigned at Peking Union Medical College Hospital. The baseline characteristics of the anlotinib group (n=16) and placebo group (n=8) were fairly comparable. The median OS was 12.7 months in anlotinib group and 11.1 months in placebo group (P=0.460).The median PFS was 4.0 months in anlotinib group and 1.4 months in placebo group (P=0.065).The common adverse events were manageable such as hypertension, hand-foot syndrome, thyroiddy sfunction. No drug-related mortality occurred. Conclusions: Anlotinib had a trend of improvement in OS and PFS as third-line treatment or beyond in advanced NSCLC compared with placebo with manageable toxicity. ClinicalTrials:: NCT02388919.
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Li Y, Sheng Y, Xia C, Liang JM, Wu BJ, Zhang Q, Zhang XT, Ren XY. [Clinical application of a self-developed bone dust collector in mastoid cavity obliteration following mastoidectomy]. ZHONGHUA ER BI YAN HOU TOU JING WAI KE ZA ZHI = CHINESE JOURNAL OF OTORHINOLARYNGOLOGY HEAD AND NECK SURGERY 2018; 53:838-841. [PMID: 30453403 DOI: 10.3760/cma.j.issn.1673-0860.2018.11.008] [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 introduce a self-developed bone dust collector designed by the authors and evaluate its efficiency in mastoid obliteration following mastoidectomy. Methods: Consecutive patients, from April 2017 to March 2018, who prepared to receive mastoidectomy were randomly divided into two groups, and in each group the bone dust was harvested by self-developed bone dust collector or by conventional used method respectively in mastoidectomy. The amount of the harvested bone dust and the time consumed in the collecting procedure were compared between two groups. The infection of the bone dust after mastoid obliteration was also evaluated during follow up. Results: 33 patients were recruited in bone dust collector group, and 31 patients in conventional method group.There is no significance of difference between two groups in sex ratio, age and pneumatization of mastoid cells (P>0.05 for all). The median amount of bone dust harvested by bone dust collector was significantly larger than that collected by conventional method (1.8 g vs 1.1 g, P<0.05). The median time spent in bone dust collector group was significantly shorter than that spent in conventional method group (4 minutes vs 6 minutes, P<0.05). No bone dust infection was found in the follow-up in all patients. Conclusion: The present self-developed bone dust collector is a easy and useful apparatus which can significantly improve the efficiency of collecting bone dust in mastoidectomy.
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Jin Q, Zhang N, Zhu CC, Gao H, Zhang XT. Rationally designing S/Ti 3C 2T x as a cathode material with an interlayer for high-rate and long-cycle lithium-sulfur batteries. NANOSCALE 2018; 10:16935-16942. [PMID: 30178809 DOI: 10.1039/c8nr05749d] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Lithium-sulfur batteries suffer from poor cycling stability and inferior rate capability, mainly caused by low conductivity and lithium polysulfide dissolution. To tackle these problems, this work demonstrates that Ti3C2Tx "clay", synthesized by selectively extracting the Al layers from the Ti3AlC2 phases with a mixture of HCl and LiF, is an effective host material for sulfur cathodes. To further enhance the rate performance and cycling stability of S/Ti3C2Tx composites, a single-walled carbon nanotube thin film was prepared by a simple vacuum filtration method and inserted between the cathode and the separator as an interlayer for Li-S batteries. The S/Ti3C2Tx composite with an interlayer could deliver a high initial discharge capacity of 1458 mA h g-1 at a current density of 0.1 A g-1 and an ultralow capacity decay of 0.04% per cycle at 0.8 A g-1 for over 1500 cycles was achieved. More importantly, a reversible capacity of 608 mA h g-1 was obtained at a high current density of 8.2 A g-1 (≈5C), demonstrating superior rate capability. These results suggest that the S/Ti3C2Tx composite is a promising sulfur cathode material and the introduction of the interlayer will pave the way for the future development and design of high-rate with long-cycle Li-S batteries.
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Lou QB, Nan K, Xiang FF, Chen XZ, Zhu WS, Zhang XT, Li J. [Effect of perioperative multi-day low dose ketamine infusion on prevention of postmastectomy pain syndrome]. ZHONGHUA YI XUE ZA ZHI 2018; 97:3636-3641. [PMID: 29275607 DOI: 10.3760/cma.j.issn.0376-2491.2017.46.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effects of multi-day low dose ketamine infusion for postmastectomy pain syndrome (PMPS) after breast cancer surgery. Methods: This study was a prospective randomized controlled trial. From June 2015 to May 2016 in Affiliated Yiwu Hospital of Wenzhou Medical University, 66 patients with breast cancer surgery were randomly divided into control group (group C) and ketamine group (group K). Patients in group K were infused with 0.5 mg/kg of ketamine mixed in 250 ml of 0.9% normal saline in 1 h daily for 7 days. Patients in group C were infused the same dose of 0.9% normal saline. Anesthesia induction in both groups were given intravenous midazolam, sufentanil, propofol, vecuronium and intermittent positive pressure ventilation after tracheal intubation, anesthesia was maintained with propofol and remifentanil. After awakening, all patients were monitored in postanesthesia care unit (PACU) and given patient-controlled intravenous analgesia(PCIA). Pain scores were assessed using visual analogue scales (VAS) during PACU, 4 h, 24 h and 2-5 d after surgery, simultaneously analgesic requirement were recorded. Patients were evaluated Hospital Anxiety and Depression Scale (HADS) 5 d after surgery . The patients were followed up for 6 months. At 3 m, 6 m after surgery, the incidence of PMPS, the level of pain, pain site and HADS scale were assessed. Results: The VAS score uring PACU, 4 h, 24 h and 2-5 d after surgery in group K( (2.5±0.8), (2.4±0.5), (2.4±0.5), (2.0±0.4), (1.5±0.5), (1.0±0.4), 1(1), respectively) was lower than those in group C ((2.9±1.0), (2.9±0.6), (2.6±0.5), (2.3±0.5), (1.8±0.6), (1.5±0.5), 1(0), respectively). There was statistically difference between the two groups (all P<0.05). The consumption of analgesics required at each time postoperation in group K were also lower than that of group C(all P<0.05). Followed up for 6 months, 2 lost in group C, 1 lost in group K. The incidence of PMPS in group K at 3 months and 6 months after surgery was significantly lower(25% and 22%) than that in group C(52% and 45%)(χ(2)=4.729, 3.842, all P<0.05). There were no significant difference in pain level and site between two groups of PMPS patients (all P>0.05). There were no significant difference of HADS scale preoperative and 5 d after surgery between two groups (all P>0.05); and HADS scale in group K at 3 m and 6 m after surgery was significantly lower than that in group C(all P<0.05). Conclusion: Perioperative continuous multi-day low dose ketamine infusion can effectively reduce the incidence of PMPS after breast cancer surgery.
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Zhang XT, Wei KJ, Chen YY, Shi ZC, Liu LK, Li J, Zhang GR, Ji W. Molecular cloning and expression analysis of tyr and tyrp1 genes in normal and albino yellow catfish Tachysurus fulvidraco. JOURNAL OF FISH BIOLOGY 2018; 92:979-998. [PMID: 29460483 DOI: 10.1111/jfb.13556] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 01/08/2018] [Indexed: 06/08/2023]
Abstract
The full-length complementary DNA of two genes related to vertebrate albinism, the tyrosinase gene tyr and tyrosinase-related protein 1 gene tyrp1, were cloned and analysed from normal and albino yellow catfish Tachysurus fulvidraco. The open reading frames (ORF) of tyr and tyrp1 encode putative peptides of 533 and 526 amino acids (amino-acid), both of which possess two conserved copper binding sites. The homologous identities of deduced amino-acid sequences showed that both Tyr and Tyrp1 of T. fulvidraco share considerable similarity with that of channel catfish Ictalurus punctatus. Both tyr and tyrp1 were expressed in a wide range of adult tissues. Tyr gene had the highest expression level in the brain of both normal and albino T. fulvidraco. Tyrp1 had the highest expression level in the skin of normal groups, and the fin of albino groups. The messenger (m)RNA expressions of tyr and tyrp1 were detectable at different early developmental stages and varied with embryonic and larval growth. Tyr and tyrp1 mRNA have obvious tissue specificity both in normal and albino T. fulvidraco and higher expression levels were detected in the normal group revealing that tyr and tyrp1 may have an important role in pigmentation. These results will provide useful data for understanding the molecular mechanism of melanin formation and the occurrence of albinism in T. fulvidraco.
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Wang YK, Zhang XT. [AFP-producing gastric cancer and hepatoid gastric cancer]. ZHONGHUA ZHONG LIU ZA ZHI [CHINESE JOURNAL OF ONCOLOGY] 2017; 39:801-807. [PMID: 29151285 DOI: 10.3760/cma.j.issn.0253-3766.2017.11.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AFP-producing gastric cancer(AFPGC) and hepatoid adenocarcinoma of the stomach (HAS) are two special subtypes of gastric cancer. There are both correlation and difference between them. AFPGC is usually identified as primary gastric cancer with serum AFP level more than 20 ng/ml or showed AFP positive staining by immunohistochemistry. The diagnosis of HAS is mainly dependent on the pathological character of hepatocellular carcinoma-like differentiation of gastric cancer. The morbidity of AFPGC and HAS are rather low, especially the incidence of HAS is about 1%. The prognoses of these two subtypes are poorer than that of common gastric adenocarcinoma, due to a high incidence rate of liver metastasis and lymph node metastasis. With the development of next-generation sequencing and other genomic technologies, gastric cancers, including these two rare subtypes, are now being investigated in more detail at the molecular level. Treatment remains the biggest challenge, early diagnosis and radical resection can dramatically improve patients'prognosis. Monitoring serum AFP and abdominal imaging examination during follow-up is important for early detection of liver metastasis. In combination with local treatment methods such as transarterial chemoembolization and radiofrequency ablation of liver may further extend patients'survival time. Targeted therapy owes a great potential value in the future.
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Ye LX, Wang JX, Li P, Zhang XT. Distribution and morphology of ghrelin immunostained cells in the adrenal gland of the African ostrich. Biotech Histochem 2017; 93:1-7. [PMID: 29215919 DOI: 10.1080/10520295.2017.1372631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
Ghrelin is the endogenous ligand for the growth hormone secretagogue receptor. We investigated the distribution and morphological characteristics of ghrelin-immunopositive (ghrelin-ip) cells in the African ostrich adrenal gland. We found that the adrenal gland of the African ostrich consisted of three parts: capsule, inter-renal tissue and chromaffin cells. The inter-renal tissue and chromaffin cells interdigitated irregularly. The inter-renal tissue consisted of a peripheral zone and a central inner zone. The peripheral zone could be divided into an outer subcapsular zone and an inner zone. The subcapsular zone cells were arranged as a bow, while the inner area cells formed cords that were perpendicular to the capsule. The central inner zone exhibited irregular clumps and the cells were morphologically similar to chromaffin cells. Ghrelin-ip cells were located throughout the adrenal gland except the capsule. The majority of ghrelin-ip cells were found among the chromaffin cells. The number of ghrelin-ip cells in the inter-renal tissue decreased gradually from the central inner zone, to the inner zone to the subcapsular zone. The ghrelin-ip cells were oval or irregular in shape and exhibited cytoplasmic staining. Our findings suggest that ghrelin may play a role in regulating adrenal hormone secretion in the African ostrich.
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Ye LX, Wang JX, Li P, Zhang XT. Distribution and Morphology of Ghrelin-Immunopositive Cells in the Testes of the African Ostrich. PAK J ZOOL 2017. [DOI: 10.17582/journal.pjz/2018.50.1.29.34] [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]
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Wang JX, Li P, Zhang XT, Ye LX. Distribution and developmental changes of ghrelin-immunopositive cells in the pancreas of African ostrich chicks (Struthio camelus). Poult Sci 2017; 96:3445-3451. [PMID: 28595319 DOI: 10.3382/ps/pex145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Accepted: 05/14/2017] [Indexed: 11/20/2022] Open
Abstract
Ghrelin, the endogenous ligand for the growth hormone secretagogue receptor (GHS-R), is produced by multiple cell types and affects feeding behavior, metabolic regulation, and energy balance. In the mammalian pancreas, the types of endocrine cells that are immunoreactive to ghrelin vary. However, little was known about its distribution and developmental changes in the pancreas of African ostrich chicks (Struthio camelus). In the present study, the distribution, morphological characteristics, and developmental changes of ghrelin-immunopositive (ghrelin-ip) cells in the pancreas of African ostrich chicks were investigated using immunohistochemistry. Ghrelin-ip cells were found in both the pancreatic islets and acinar cell regions. The greatest number of ghrelin-ip cells were found in the pancreatic islets, and were primarily observed at the periphery of the islets; some ghrelin-ip cells were also located in the central portion of the pancreatic islets. Interestingly, from postnatal d 1 to d 90, there was a steady decrease in the number of ghrelin-ip cells in the pancreatic islets and acinar cell regions. These results clearly demonstrated that ghrelin-ip cells exist and decreased with age in the African ostrich pancreas from postnatal d 1 to d90. Thus, these findings indicated that ghrelin may be involved in the development of the pancreas in the African ostrich.
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Wang YK, Shen L, Zhang XT. [The prognosis and clinicopathological characteristics of 70 gastric cancer patients with elevated serum AFP]. ZHONGHUA ZHONG LIU ZA ZHI [CHINESE JOURNAL OF ONCOLOGY] 2017; 39:514-517. [PMID: 28728297 DOI: 10.3760/cma.j.issn.0253-3766.2017.07.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: This study aimed to review the clinicopathological characteristics and prognosis of advanced gastric cancer patients with elevated serum Alpha-fetoprotein (AFP). Methods: From August 2006 to May 2016, 70patients with advanced gastric cancer were enrolled retrospectively. All these patients had pathologically confirmed gastric adenocarcinoma, had a serum AFP level of more than 20 ng/ml, and received at least first-line treatment. The clinicopathological data and follow-up data were collected for analysis. Results: Liver metastasis was more common in patients with AFP≥1 000 ng/ml, compared with AFP<1 000 ng/ml patients (78.6% vs 57.1%, P=0.064). In patients whose AFP level decreased ≥50% after first-line chemotherapy, the disease control rate and overall survival were both better than those in patients with AFP decreased <50%(96.3% vs 56.7%, P=0.001; 17.2 m vs 8.8 m P=0.007). The overall survival of all these 70 patients ranged from 0.5-50.0 months. 31 patients received chemotherapy only, and 39 patients received combined therapy modality. The overall survival of these two groups were similar(11.0 m and 15.6 m, respectively, P=0.070). Conclusions: Serum AFP-elevated gastric cancer is a special subtype of gastric cancer. It's a heterogeneous cancer with different clinical outcomes. The extent of decrease of serum AFP level during follow-up may be a sensitive prognostic and predictive biomarker. Liver metastasis were more common in these patients, and combined treatment may improve survival.
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An FP, Balantekin AB, Band HR, Bishai M, Blyth S, Cao D, Cao GF, Cao J, Chan YL, Chang JF, Chang Y, Chen HS, Chen QY, Chen SM, Chen YX, Chen Y, Cheng J, Cheng ZK, Cherwinka JJ, Chu MC, Chukanov A, Cummings JP, Ding YY, Diwan MV, Dolgareva M, Dove J, Dwyer DA, Edwards WR, Gill R, Gonchar M, Gong GH, Gong H, Grassi M, Gu WQ, Guo L, Guo XH, Guo YH, Guo Z, Hackenburg RW, Hans S, He M, Heeger KM, Heng YK, Higuera A, Hsiung YB, Hu BZ, Hu T, Huang EC, Huang HX, Huang XT, Huang YB, Huber P, Huo W, Hussain G, Jaffe DE, Jen KL, Ji XP, Ji XL, Jiao JB, Johnson RA, Jones D, Kang L, Kettell SH, Khan A, Kohn S, Kramer M, Kwan KK, Kwok MW, Langford TJ, Lau K, Lebanowski L, Lee J, Lee JHC, Lei RT, Leitner R, Leung JKC, Li C, Li DJ, Li F, Li GS, Li QJ, Li S, Li SC, Li WD, Li XN, Li XQ, Li YF, Li ZB, Liang H, Lin CJ, Lin GL, Lin S, Lin SK, Lin YC, Ling JJ, Link JM, Littenberg L, Littlejohn BR, Liu JL, Liu JC, Loh CW, Lu C, Lu HQ, Lu JS, Luk KB, Ma XY, Ma XB, Ma YQ, Malyshkin Y, Martinez Caicedo DA, McDonald KT, McKeown RD, Mitchell I, Nakajima Y, Napolitano J, Naumov D, Naumova E, Ngai HY, Ochoa-Ricoux JP, Olshevskiy A, Pan HR, Park J, Patton S, Pec V, Peng JC, Pinsky L, Pun CSJ, Qi FZ, Qi M, Qian X, Qiu RM, Raper N, Ren J, Rosero R, Roskovec B, Ruan XC, Steiner H, Stoler P, Sun JL, Tang W, Taychenachev D, Treskov K, Tsang KV, Tull CE, Viaux N, Viren B, Vorobel V, Wang CH, Wang M, Wang NY, Wang RG, Wang W, Wang X, Wang YF, Wang Z, Wang Z, Wang ZM, Wei HY, Wen LJ, Whisnant K, White CG, Whitehead L, Wise T, Wong HLH, Wong SCF, Worcester E, Wu CH, Wu Q, Wu WJ, Xia DM, Xia JK, Xing ZZ, Xu JL, Xu Y, Xue T, Yang CG, Yang H, Yang L, Yang MS, Yang MT, Yang YZ, Ye M, Ye Z, Yeh M, Young BL, Yu ZY, Zeng S, Zhan L, Zhang C, Zhang CC, Zhang HH, Zhang JW, Zhang QM, Zhang R, Zhang XT, Zhang YM, Zhang YX, Zhang YM, Zhang ZJ, Zhang ZY, Zhang ZP, Zhao J, Zhou L, Zhuang HL, Zou JH. Evolution of the Reactor Antineutrino Flux and Spectrum at Daya Bay. PHYSICAL REVIEW LETTERS 2017; 118:251801. [PMID: 28696753 DOI: 10.1103/physrevlett.118.251801] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Indexed: 06/07/2023]
Abstract
The Daya Bay experiment has observed correlations between reactor core fuel evolution and changes in the reactor antineutrino flux and energy spectrum. Four antineutrino detectors in two experimental halls were used to identify 2.2 million inverse beta decays (IBDs) over 1230 days spanning multiple fuel cycles for each of six 2.9 GW_{th} reactor cores at the Daya Bay and Ling Ao nuclear power plants. Using detector data spanning effective ^{239}Pu fission fractions F_{239} from 0.25 to 0.35, Daya Bay measures an average IBD yield σ[over ¯]_{f} of (5.90±0.13)×10^{-43} cm^{2}/fission and a fuel-dependent variation in the IBD yield, dσ_{f}/dF_{239}, of (-1.86±0.18)×10^{-43} cm^{2}/fission. This observation rejects the hypothesis of a constant antineutrino flux as a function of the ^{239}Pu fission fraction at 10 standard deviations. The variation in IBD yield is found to be energy dependent, rejecting the hypothesis of a constant antineutrino energy spectrum at 5.1 standard deviations. While measurements of the evolution in the IBD spectrum show general agreement with predictions from recent reactor models, the measured evolution in total IBD yield disagrees with recent predictions at 3.1σ. This discrepancy indicates that an overall deficit in the measured flux with respect to predictions does not result from equal fractional deficits from the primary fission isotopes ^{235}U, ^{239}Pu, ^{238}U, and ^{241}Pu. Based on measured IBD yield variations, yields of (6.17±0.17) and (4.27±0.26)×10^{-43} cm^{2}/fission have been determined for the two dominant fission parent isotopes ^{235}U and ^{239}Pu. A 7.8% discrepancy between the observed and predicted ^{235}U yields suggests that this isotope may be the primary contributor to the reactor antineutrino anomaly.
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Adamson P, An FP, Anghel I, Aurisano A, Balantekin AB, Band HR, Barr G, Bishai M, Blake A, Blyth S, Bock GJ, Bogert D, Cao D, Cao GF, Cao J, Cao SV, Carroll TJ, Castromonte CM, Cen WR, Chan YL, Chang JF, Chang LC, Chang Y, Chen HS, Chen QY, Chen R, Chen SM, Chen Y, Chen YX, Cheng J, Cheng JH, Cheng YP, Cheng ZK, Cherwinka JJ, Childress S, Chu MC, Chukanov A, Coelho JAB, Corwin L, Cronin-Hennessy D, Cummings JP, de Arcos J, De Rijck S, Deng ZY, Devan AV, Devenish NE, Ding XF, Ding YY, Diwan MV, Dolgareva M, Dove J, Dwyer DA, Edwards WR, Escobar CO, Evans JJ, Falk E, Feldman GJ, Flanagan W, Frohne MV, Gabrielyan M, Gallagher HR, Germani S, Gill R, Gomes RA, Gonchar M, Gong GH, Gong H, Goodman MC, Gouffon P, Graf N, Gran R, Grassi M, Grzelak K, Gu WQ, Guan MY, Guo L, Guo RP, Guo XH, Guo Z, Habig A, Hackenburg RW, Hahn SR, Han R, Hans S, Hartnell J, Hatcher R, He M, Heeger KM, Heng YK, Higuera A, Holin A, Hor YK, Hsiung YB, Hu BZ, Hu T, Hu W, Huang EC, Huang HX, Huang J, Huang XT, Huber P, Huo W, Hussain G, Hylen J, Irwin GM, Isvan Z, Jaffe DE, Jaffke P, James C, Jen KL, Jensen D, Jetter S, Ji XL, Ji XP, Jiao JB, Johnson RA, de Jong JK, Joshi J, Kafka T, Kang L, Kasahara SMS, Kettell SH, Kohn S, Koizumi G, Kordosky M, Kramer M, Kreymer A, Kwan KK, Kwok MW, Kwok T, Lang K, Langford TJ, Lau K, Lebanowski L, Lee J, Lee JHC, Lei RT, Leitner R, Leung JKC, Li C, Li DJ, Li F, Li GS, Li QJ, Li S, Li SC, Li WD, Li XN, Li YF, Li ZB, Liang H, Lin CJ, Lin GL, Lin S, Lin SK, Lin YC, Ling JJ, Link JM, Litchfield PJ, Littenberg L, Littlejohn BR, Liu DW, Liu JC, Liu JL, Loh CW, Lu C, Lu HQ, Lu JS, Lucas P, Luk KB, Lv Z, Ma QM, Ma XB, Ma XY, Ma YQ, Malyshkin Y, Mann WA, Marshak ML, Martinez Caicedo DA, Mayer N, McDonald KT, McGivern C, McKeown RD, Medeiros MM, Mehdiyev R, Meier JR, Messier MD, Miller WH, Mishra SR, Mitchell I, Mooney M, Moore CD, Mualem L, Musser J, Nakajima Y, Naples D, Napolitano J, Naumov D, Naumova E, Nelson JK, Newman HB, Ngai HY, Nichol RJ, Ning Z, Nowak JA, O'Connor J, Ochoa-Ricoux JP, Olshevskiy A, Orchanian M, Pahlka RB, Paley J, Pan HR, Park J, Patterson RB, Patton S, Pawloski G, Pec V, Peng JC, Perch A, Pfützner MM, Phan DD, Phan-Budd S, Pinsky L, Plunkett RK, Poonthottathil N, Pun CSJ, Qi FZ, Qi M, Qian X, Qiu X, Radovic A, Raper N, Rebel B, Ren J, Rosenfeld C, Rosero R, Roskovec B, Ruan XC, Rubin HA, Sail P, Sanchez MC, Schneps J, Schreckenberger A, Schreiner P, Sharma R, Moed Sher S, Sousa A, Steiner H, Sun GX, Sun JL, Tagg N, Talaga RL, Tang W, Taychenachev D, Thomas J, Thomson MA, Tian X, Timmons A, Todd J, Tognini SC, Toner R, Torretta D, Treskov K, Tsang KV, Tull CE, Tzanakos G, Urheim J, Vahle P, Viaux N, Viren B, Vorobel V, Wang CH, Wang M, Wang NY, Wang RG, Wang W, Wang X, Wang YF, Wang Z, Wang ZM, Webb RC, Weber A, Wei HY, Wen LJ, Whisnant K, White C, Whitehead L, Whitehead LH, Wise T, Wojcicki SG, Wong HLH, Wong SCF, Worcester E, Wu CH, Wu Q, Wu WJ, Xia DM, Xia JK, Xing ZZ, Xu JL, Xu JY, Xu Y, Xue T, Yang CG, Yang H, Yang L, Yang MS, Yang MT, Ye M, Ye Z, Yeh M, Young BL, Yu ZY, Zeng S, Zhan L, Zhang C, Zhang HH, Zhang JW, Zhang QM, Zhang XT, Zhang YM, Zhang YX, Zhang ZJ, Zhang ZP, Zhang ZY, Zhao J, Zhao QW, Zhao YB, Zhong WL, Zhou L, Zhou N, Zhuang HL, Zou JH. Limits on Active to Sterile Neutrino Oscillations from Disappearance Searches in the MINOS, Daya Bay, and Bugey-3 Experiments. PHYSICAL REVIEW LETTERS 2016; 117:151801. [PMID: 27768356 DOI: 10.1103/physrevlett.117.151801] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Indexed: 06/06/2023]
Abstract
Searches for a light sterile neutrino have been performed independently by the MINOS and the Daya Bay experiments using the muon (anti)neutrino and electron antineutrino disappearance channels, respectively. In this Letter, results from both experiments are combined with those from the Bugey-3 reactor neutrino experiment to constrain oscillations into light sterile neutrinos. The three experiments are sensitive to complementary regions of parameter space, enabling the combined analysis to probe regions allowed by the Liquid Scintillator Neutrino Detector (LSND) and MiniBooNE experiments in a minimally extended four-neutrino flavor framework. Stringent limits on sin^{2}2θ_{μe} are set over 6 orders of magnitude in the sterile mass-squared splitting Δm_{41}^{2}. The sterile-neutrino mixing phase space allowed by the LSND and MiniBooNE experiments is excluded for Δm_{41}^{2}<0.8 eV^{2} at 95% CL_{s}.
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An FP, Balantekin AB, Band HR, Bishai M, Blyth S, Cao D, Cao GF, Cao J, Cen WR, Chan YL, Chang JF, Chang LC, Chang Y, Chen HS, Chen QY, Chen SM, Chen YX, Chen Y, Cheng JH, Cheng J, Cheng YP, Cheng ZK, Cherwinka JJ, Chu MC, Chukanov A, Cummings JP, de Arcos J, Deng ZY, Ding XF, Ding YY, Diwan MV, Dolgareva M, Dove J, Dwyer DA, Edwards WR, Gill R, Gonchar M, Gong GH, Gong H, Grassi M, Gu WQ, Guan MY, Guo L, Guo RP, Guo XH, Guo Z, Hackenburg RW, Han R, Hans S, He M, Heeger KM, Heng YK, Higuera A, Hor YK, Hsiung YB, Hu BZ, Hu T, Hu W, Huang EC, Huang HX, Huang XT, Huber P, Huo W, Hussain G, Jaffe DE, Jaffke P, Jen KL, Jetter S, Ji XP, Ji XL, Jiao JB, Johnson RA, Joshi J, Kang L, Kettell SH, Kohn S, Kramer M, Kwan KK, Kwok MW, Kwok T, Langford TJ, Lau K, Lebanowski L, Lee J, Lee JHC, Lei RT, Leitner R, Leung JKC, Li C, Li DJ, Li F, Li GS, Li QJ, Li S, Li SC, Li WD, Li XN, Li YF, Li ZB, Liang H, Lin CJ, Lin GL, Lin S, Lin SK, Lin YC, Ling JJ, Link JM, Littenberg L, Littlejohn BR, Liu DW, Liu JL, Liu JC, Loh CW, Lu C, Lu HQ, Lu JS, Luk KB, Lv Z, Ma QM, Ma XY, Ma XB, Ma YQ, Malyshkin Y, Martinez Caicedo DA, McDonald KT, McKeown RD, Mitchell I, Mooney M, Nakajima Y, Napolitano J, Naumov D, Naumova E, Ngai HY, Ning Z, Ochoa-Ricoux JP, Olshevskiy A, Pan HR, Park J, Patton S, Pec V, Peng JC, Pinsky L, Pun CSJ, Qi FZ, Qi M, Qian X, Raper N, Ren J, Rosero R, Roskovec B, Ruan XC, Steiner H, Sun GX, Sun JL, Tang W, Taychenachev D, Treskov K, Tsang KV, Tull CE, Viaux N, Viren B, Vorobel V, Wang CH, Wang M, Wang NY, Wang RG, Wang W, Wang X, Wang YF, Wang Z, Wang Z, Wang ZM, Wei HY, Wen LJ, Whisnant K, White CG, Whitehead L, Wise T, Wong HLH, Wong SCF, Worcester E, Wu CH, Wu Q, Wu WJ, Xia DM, Xia JK, Xing ZZ, Xu JY, Xu JL, Xu Y, Xue T, Yang CG, Yang H, Yang L, Yang MS, Yang MT, Ye M, Ye Z, Yeh M, Young BL, Yu ZY, Zeng S, Zhan L, Zhang C, Zhang HH, Zhang JW, Zhang QM, Zhang XT, Zhang YM, Zhang YX, Zhang YM, Zhang ZJ, Zhang ZY, Zhang ZP, Zhao J, Zhao QW, Zhao YB, Zhong WL, Zhou L, Zhou N, Zhuang HL, Zou JH. Improved Search for a Light Sterile Neutrino with the Full Configuration of the Daya Bay Experiment. PHYSICAL REVIEW LETTERS 2016; 117:151802. [PMID: 27768341 DOI: 10.1103/physrevlett.117.151802] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Indexed: 06/06/2023]
Abstract
This Letter reports an improved search for light sterile neutrino mixing in the electron antineutrino disappearance channel with the full configuration of the Daya Bay Reactor Neutrino Experiment. With an additional 404 days of data collected in eight antineutrino detectors, this search benefits from 3.6 times the statistics available to the previous publication, as well as from improvements in energy calibration and background reduction. A relative comparison of the rate and energy spectrum of reactor antineutrinos in the three experimental halls yields no evidence of sterile neutrino mixing in the 2×10^{-4}≲|Δm_{41}^{2}|≲0.3 eV^{2} mass range. The resulting limits on sin^{2}2θ_{14} are improved by approx imately a factor of 2 over previous results and constitute the most stringent constraints to date in the |Δm_{41}^{2}|≲0.2 eV^{2} region.
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Li X, Zhang XT, Zhang MY, Wang GC, Feng H, Zhang CQ. [Effects of desmopressin acetate and pituitrin on proliferation, contraction, and secretion of hepatic stellate cells]. ZHONGHUA GAN ZANG BING ZA ZHI = ZHONGHUA GANZANGBING ZAZHI = CHINESE JOURNAL OF HEPATOLOGY 2016; 24:569-574. [PMID: 27788702 DOI: 10.3760/cma.j.issn.1007-3418.2016.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effects of desmopressin acetate and pituitrin on the proliferation, contraction, and secretion of hepatic stellate cells (HSCs). Methods: The human HSC cell line LX-2 was selected as the research model. And three groups were designed: blank control group, desmopressin acetate group (three subgroups: 1×10-10mol/L, 1×10-9mol/L, and 1×10-8mol/L desmopressin acetate), and pituitrin group (three subgroups: 0.1 U/L, 1.0 U/L, and 10.0 U/L pituitrin). Water-soluble tetrazolium salt (WST)-1 assay was used to evaluate cell proliferation; collagen gel contraction assay was used to assess cell contraction; enzyme-linked immunosorbent assay (ELISA) was used to identify cell secretion. The data was subjected to one-way analysis of variance. Results: (1) The results of WST-1 assay showed that the values of A450in three desmopressin acetate subgroups (1×10-10mol/L, 1×10-9mol/L, and 1×10-8mol/L) were 0.459±0.017, 0.467±0.024, and 0.436±0.015, respectively. And the values of A450 in three pituitrin subgroups (0.1 U/L, 1.0 U/L, and 10.0 U/L) were 0.495±0.011, 0.507±0.015, and 0.501±0.009, respectively. Compared with the control group, the desmopressin acetate at high concentration significantly inhibited the cell proliferation (P< 0.05), but the pituitrin at three different concentrations significantly promoted the cell proliferation (P< 0.05). (2) The collagen gel area ratios in three desmopressin acetate subgroups (1×10-10mol/L, 1×10-9mol/L, and 1×10-8mol/L) were 77.07±4.42, 75.85±3.70, and 72.74±3.92, respectively. And the collagen gel area ratios in three pituitrin subgroups (0.1 U/L, 1.0 U/L, and 10.0 U/L) were 57.83±3.96, 50.28±6.69, and 43.56±7.68, respectively. Compared with the control group, the pituitrin at three different concentrations significantly reduced the collagen gel area (P< 0.01). (3) The matrix metalloproteinase(MMP)-2 concentrations in three desmopressin acetate subgroups (1×10-10mol/L, 1×10-9mol/L, and 1×10-8mol/L) were 13.321±0.098, 12.230±0.153, and 12.061±0.126, respectively. And the MMP-2 concentrations in three pituitrin subgroups (0.1 U/L, 1.0 U/L, and 10.0 U/L) were 12.899±0.150, 13.662±0.152, and 13.698±0.119, respectively. Compared with the control group, the desmopressin acetate at low concentration significantly increased the secretion of MMP-2 (P< 0.01); the desmopressin acetate at high concentration significantly decreased the MMP-2 concentration (P< 0.05); the pituitrin at three different concentrations significantly increased the MMP-2 concentration (P< 0.01). The transforming growth factor-beta 1 (TGF-β1) concentrations in three desmopressin acetate subgroups (1×10-10mol/L, 1×10-9mol/L, and 1×10-8mol/L) were 5.233±0.102, 17.749±0.188, and 36.060±0.227, respectively. And the TGF-β1 concentrations in three pituitrin subgroups (0.1 U/L, 1.0 U/L, and 10.0 U/L) were 15.615±0.099, 38.460±0.209, and 49.053±0.115, respectively. Compared with the control group, desmopressin acetate and pituitrin significantly promoted the secretion of TGF-β1 in a concentration-dependent manner (P< 0.01) and pituitrin had a stronger effect than desmopressin acetate (P< 0.01). Desmopressin acetate and pituitrin had no effect on the secretion of the collagenase type I and III (P> 0.05). Conclusion: Desmopressin acetate and pituitrin can induce the changes in the function and morphology of HSCs and may increase vascular resistance in the hepatic sinus. However, desmopressin acetate has less influence on HSCs than pituitrin.
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Xue X, Cao ZX, Zhang XT, Wang Y, Zhang YF, Chen ZX, Pan XB, Zuo SM. Overexpression of OsOSM1 Enhances Resistance to Rice Sheath Blight. PLANT DISEASE 2016; 100:1634-1642. [PMID: 30686242 DOI: 10.1094/pdis-11-15-1372-re] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Sheath blight (SB), caused by Rhizoctonia solani, is one of the most destructive rice diseases worldwide. It has been difficult to generate SB-resistant varieties through conventional breeding because of the quantitative nature of rice resistance to SB. In this study, we found that overexpression of the OsOSM1 gene, encoding an osmotin protein belonging to the pathogenesis-related protein 5 family, is able to improve rice resistance to SB in field tests. Although there are two osmotin genes in rice, OsOSM1 is the one mainly expressed in leaf sheath at the booting stage, coinciding with the critical stage of SB development in the field. In addition, OsOSM1 expression is strongly induced by R. solani in SB-resistant rice variety YSBR1 but not in susceptible varieties, suggesting its involvement in SB resistance. Overexpression of OsOSM1 (OsOSM1ox) in susceptible variety Xudao 3 significantly increases resistance to SB in transgenic rice. The OsOSM1 mRNA levels in different transgenic lines are found to be positively correlated with their SB resistance levels. Intriguingly, although extremely high levels of OsOSM1 were detrimental to rice development, appropriately elevated levels of OsSOM1 were obtained that enhanced rice SB resistance without affecting rice development or grain yield. The OsSOM1 protein is localized on plasma membrane. OsOSM1 is upregulated by jasmonic acid (JA); furthermore, JA-responsive marker genes are induced in OsOSM1ox lines. These results suggest that the activation of JA signaling pathway may account for the increased resistance in transgenic OsOSM1ox lines. Taken together, our results demonstrate that OsOSM1 plays an important role in defense against rice SB disease and provides a new target for engineering resistance to SB.
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Li SF, Zhang XT, Qi SL, Ye YT, Cao H, Yang YQ, McElwee KJ, Zhang X. Allergy to dust mites may contribute to early onset and severity of alopecia areata. Clin Exp Dermatol 2014; 40:171-6. [PMID: 25252126 DOI: 10.1111/ced.12471] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/26/2014] [Indexed: 12/18/2022]
Abstract
BACKGROUND A higher risk of allergic diseases such as rhinitis, asthma and atopic eczema (atopic dermatitis) has been reported for patients with alopecia areata (AA) compared with the general population, but the significance of this is still largely unclear. AIM To determine whether serum total or specific IgE play a role in the onset and severity of AA. METHODS We tested 461 serum samples from 351 patients with AA and 110 healthy controls (HC) for total IgE (tIgE) and specific IgE (sIgE) by ImmunoCAP-100 or in vitro test (IVT). RESULTS The absolute value of tIgE was higher in patients with AA than in normal controls (P < 0.001), although the prevalence of raised tIgE (> 120 IU/mL) detected in patients with AA (29.3%) was similar to that of HC (21.8%). Prevalences of raised sIgE against various allergens detected by ImmunoCAP-100 showed that Dermatophagoides pteronyssinus (Der p; 31.1%) and Dermatophagoides farinae (Der f; 29.0%) were the most common allergens. Similar results were found by IVT, with the most common response being against Der p/Der f (29.0%). However, the prevalences of tIgE and sIgE against dust mites (Der p and Der f) in patients with early-onset AA and severe AA were significantly higher than those with late-onset AA and mild AA (P = 0.02, P = 0.02 vs. P = 0.03 and P = 0.001, respectively). Notably, the increases in tIgE and sIgE were independent of atopy history. CONCLUSIONS Allergy to dust mites may have an effect on the immune response in AA, and may contribute to its early onset and severity in patients of Chinese origin.
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Li L, Shan CX, Zhang XT, Lu YM, Sun BD, Ma XZ, Jiang DL, Wu T. Dominant factor determining the conduction-type of nitrogen-doped ZnO film. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 2014; 14:3813-3816. [PMID: 24734642 DOI: 10.1166/jnn.2014.7977] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Nitrogen-doped zinc oxide (ZnO) film has been grown by molecular beam epitaxy. The as-grown sample showed p-type conduction with a hole concentration of 3.1 x 10(17) cm(-3). After an annealing process in O2 at 600 degrees C for 30 min, p-type conduction was still remained, and the hole concentration of the film decreased to 6.8 x 10(16) cm(-3). Secondary ion mass spectroscopy revealed that the concentration of both nitrogen and hydrogen decreased after the annealing process. It is demonstrated that the intrinsic compensation source has been decreased after the annealing process. Because the variation trend of the hole concentration in the ZnO:N film is opposite to that of hydrogen and intrinsic defects, but in good accordance with nitrogen, the extrinsically substituted nitrogen (N(o)) should be the dominant factor that determines the conduction-type of the ZnO:N film.
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Li S, Zhang QN, Zhang XT, Zheng XY, Lv YF, Hao ZM. Cytomegalovirus immediate-early promoter efficiently drives heterogeneous gene expression in Spodoptera frugiperda (Sf9) insect cells. Cell Mol Biol (Noisy-le-grand) 2014; 60:6-11. [PMID: 24606722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Accepted: 02/17/2014] [Indexed: 06/03/2023]
Abstract
Recently, wide attention has been given to the potential of recombinant baculovirus as a gene transfer vehicle for mammalian gene therapy. In this study, we packaged the recombinant baculoviruses with cytomegalovirus immediate-early (CMV-IE) promoter in Spodoptera frugiperda (Sf9) insect cells, and found that the CMV-IE promoter could efficiently drive the exogenic gene expression in the cells 12 h post-infection (h.p.i.). The expression level at 72 h.p.i. was only around half of that driven by polyhedrin promoter (Ppolh). However, the biological activity of the reporter proteins at 72 h.p.i. were similar with that driven by Ppolh. In addition, the Sf9 cells transfected with CMV-IE-containing plasmids also expressed foreign genes, suggesting that the CMV-IE-directed heterogeneous gene expression in the Sf9 cells was baculovirus-independent. These results demonstrate that the CMV-IE promoter might be used as a regular promoter in Sf9 cells.
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Lu ZH, Li J, Lu M, Zhang XT, Li J, Zhou J, Wang XC, Gong JF, Gao J, Li Y, Shen L. Feasibility and efficacy of combined cisplatin plus irinotecan chemotherapy for gastroenteropancreatic neuroendocrine carcinomas. Med Oncol 2013; 30:664. [PMID: 23864251 DOI: 10.1007/s12032-013-0664-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Accepted: 07/09/2013] [Indexed: 12/27/2022]
Abstract
No standard treatment is currently available for gastroenteropancreatic neuroendocrine carcinomas (GEP-NEC). Therefore, we conducted this study to evaluate the effect of the combination of irinotecan and cisplatin in the treatment of GEP-NECs. Clinical data of 16 locally advanced or metastatic GEP-NEC patients treated with irinotecan plus cisplatin regimen in our center from September 2009 to August 2011 were reviewed. The regimen included 2-week cycles of 180 mg/m(2) irinotecan and 50 mg/m(2) cisplatin on day 1. Median age was 57 years. The overall response rate was 57.1%, with a disease control rate of 78.6%. One patient achieved pathologic complete response and underwent esophagectomy after chemotherapy. Two patients who had gotten progressive disease were given sequential octreotide long-acting release (LAR) treatment and got disease progression again within 1 month. Six patients who achieved disease control received octreotide LAR as maintenance treatment. The total number of cycles of octreotide was 41, with a median of 4.5 (3-20 cycles). The progression-free survival was 5.5 months, with overall survival of 10.6 months. Grades 3-4 hematological adverse events (AEs) occurred in 10 patients (62.5%) and 3 patients (18.7%) suffered grades 3-4 non-hematological AEs; no patient died of AEs. The irinotecan plus cisplatin chemotherapy is moderately effective and tolerable well tolerated in advanced or metastatic GEP-NEC patients; octreotide LAR may be a good maintenance treatment and should be considered as a treatment option for these patients in the future.
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Wang ZQ, Xu HY, Zhang L, Li XH, Ma JG, Zhang XT, Liu YC. Performance improvement of resistive switching memory achieved by enhancing local-electric-field near electromigrated Ag-nanoclusters. NANOSCALE 2013; 5:4490-4. [PMID: 23584667 DOI: 10.1039/c3nr33692a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
By introducing Ag nanoclusters (NCs), ZnO-based resistive switching memory devices offer improved performance, including improved uniformity of switching parameters, and increased switching speed with excellent reliability. These Ag NCs are formed between the top-electrode (cathode) and the switching layer by an electromigration process in the initial several switching cycles. The electric field can be enhanced around Ag NCs due to their high surface curvature. The enhanced local-electric-field (LEF) results in (1) the localization of the switching site near Ag NCs, where oxygen-vacancy-based conducting filaments have a simple structure, and tend to connect Ag NCs along the LEF direction; (2) an increase in migration and recombination rates of oxygen ions and oxygen vacancies. These factors are responsible for the improvement in device performance.
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Zhang XT, Alomari AH, Savkin AV, Ayre PJ, Lim E, Salamonsen RF, Rosenfeldt FL, Lovell NH. In vivo validation of pulsatile flow and differential pressure estimation models in a left ventricular assist device. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2011; 2010:2517-20. [PMID: 21096435 DOI: 10.1109/iembs.2010.5626876] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Implantation of sensors to measure hemodynamic parameters such as pulsatile pump flow and differential pressure (head) in an implantable rotary pump (IRBP) requires regular in situ calibration due to measurement drift. In addition, risks associated with sensor failure and thrombus formation makes the long-term implantation in patients problematic. In our laboratory, two stable and novel dynamical models for non-invasive pulsatile flow and head estimation were proposed and tested in vitro using mock circulatory loop experiments with varying hematocrit (HCT). Noninvasive measurements of power and pump speed were used as inputs to the flow model while the estimated flow was used together with the pump rotational speed as inputs to the head estimation model. In this paper, we evaluated the performance of the proposed models using in vivo experimental data obtained from greyhound dogs (N=5). Linear regression analysis between estimated and measured pulsatile flows resulted in a highly significant correlation (R(2) = 0.946) and mean absolute error (e) of 0.810 L/min, while for head, R(2) = 0.951 and e = 10.13 mmHg were obtained.
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Li T, Liu MJ, Zhang XT, Zhang HB, Sha T, Zhao ZW. Improved tolerance of maize (Zea mays L.) to heavy metals by colonization of a dark septate endophyte (DSE) Exophiala pisciphila. THE SCIENCE OF THE TOTAL ENVIRONMENT 2011; 409:1069-74. [PMID: 21195456 DOI: 10.1016/j.scitotenv.2010.12.012] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2010] [Revised: 12/02/2010] [Accepted: 12/02/2010] [Indexed: 05/13/2023]
Abstract
Dark septate endophytes (DSE) are ubiquitous and abundant in stressful environments including heavy metal (HM) stress. However, our knowledge about the roles of DSE in improving HM tolerance of their host plants is poor. In this study, maize (Zea mays L.) was inoculated with a HM tolerant DSE strain Exophiala pisciphila H93 in lead (Pb), zinc (Zn), and cadmium (Cd) contaminated soils. E. pisciphila H93 successfully colonized and formed typical DSE structures in the inoculated maize roots. Colonization of E. pisciphila H93 alleviated the deleterious effects of excessive HM supplements and promoted the growth of maize (roots and shoots) under HM stress conditions, though it significantly decreased the biomass of inoculated maize under no HM stress. Further analysis showed that the colonization of E. pisciphila H93 improved the tolerance of maize to HM by restricting the translocation of HM ions from roots to shoots. This study demonstrated that under higher HM stress, such a mutual symbiosis between E. pisciphila and its host (maize) may be an efficient strategy to survive in the stressful environments.
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