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Fan C, Jiang Z, Teng C, Song X, Li L, Shen W, Jiang Q, Huang D, Lv Y, Du L, Wang G, Hu Y, Man S, Zhang Z, Gao N, Wang F, Shi T, Xin T. Efficacy and safety of intrathecal pemetrexed for TKI-failed leptomeningeal metastases from EGFR+ NSCLC: an expanded, single-arm, phase II clinical trial. ESMO Open 2024; 9:102384. [PMID: 38377785 DOI: 10.1016/j.esmoop.2024.102384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 01/06/2024] [Accepted: 01/19/2024] [Indexed: 02/22/2024] Open
Abstract
BACKGROUND This study aimed to evaluate the efficacy and safety of intrathecal pemetrexed (IP) for treating patients with leptomeningeal metastases (LM) from non-small-cell lung cancer (NSCLC) who progressed from epidermal growth factor receptor (EGFR)-tyrosine kinase inhibitor (TKI) treatment in an expanded, prospective, single-arm, phase II clinical study (ChiCTR1800016615). PATIENTS AND METHODS Patients with confirmed NSCLC-LM who progressed from TKI received IP (50 mg, day 1/day 5 for 1 week, then every 3 weeks for four cycles, and then once monthly) until disease progression or intolerance. Objectives were to assess overall survival (OS), response rate, and safety. Measurable lesions were assessed by investigator according to RECIST version 1.1. LM were assessed according to the Response Assessment in Neuro-Oncology (RANO) criteria. RESULTS The study included 132 patients; 68% were female and median age was 52 years (31-74 years). The median OS was 12 months (95% confidence interval 10.4-13.6 months), RANO-assessed response rate was 80.3% (106/132), and the most common adverse event was myelosuppression (n = 42; 31.8%), which reversed after symptomatic treatment. The results of subgroup analysis showed that absence of brain parenchymal metastasis, good Eastern Cooperative Oncology Group score, good response to IP treatment, negative cytology after treatment, and patients without neck/back pain/difficult defecation had longer survival. Gender, age, previous intrathecal methotrexate/cytarabine, and whole-brain radiotherapy had no significant influence on OS. CONCLUSIONS This study further showed that IP is an effective and safe treatment method for the EGFR-TKI-failed NSCLC-LM, and should be recommended for these patients in clinical practice and guidelines.
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Affiliation(s)
- C Fan
- Department of Oncology, Second Affiliated Hospital of Harbin Medical University, Harbin
| | - Z Jiang
- Department of Oncology, Second Affiliated Hospital of Harbin Medical University, Harbin
| | - C Teng
- Department of Oncology, Second Affiliated Hospital of Harbin Medical University, Harbin
| | - X Song
- Department of Oncology, Second Affiliated Hospital of Harbin Medical University, Harbin
| | - L Li
- Department of Oncology, Second Affiliated Hospital of Harbin Medical University, Harbin
| | - W Shen
- Department of Oncology, Second Affiliated Hospital of Harbin Medical University, Harbin
| | - Q Jiang
- Department of Oncology, Second Affiliated Hospital of Harbin Medical University, Harbin
| | - D Huang
- Department of Oncology, Second Affiliated Hospital of Harbin Medical University, Harbin
| | - Y Lv
- Department of Oncology, Second Affiliated Hospital of Harbin Medical University, Harbin
| | - L Du
- Department of Oncology, Second Affiliated Hospital of Harbin Medical University, Harbin
| | - G Wang
- Department of Oncology, Second Affiliated Hospital of Harbin Medical University, Harbin
| | - Y Hu
- Department of Oncology, Second Affiliated Hospital of Harbin Medical University, Harbin
| | - S Man
- Department of Oncology, Second Affiliated Hospital of Harbin Medical University, Harbin
| | - Z Zhang
- Department of Oncology, Second Affiliated Hospital of Harbin Medical University, Harbin
| | - N Gao
- Department of Oncology, Heilongjiang Sengong General Hospital, Harbin, People's Republic of China
| | - F Wang
- Department of Oncology, Heilongjiang Sengong General Hospital, Harbin, People's Republic of China
| | - T Shi
- Department of Oncology, Heilongjiang Sengong General Hospital, Harbin, People's Republic of China
| | - T Xin
- Department of Oncology, Second Affiliated Hospital of Harbin Medical University, Harbin.
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Shi T, Yue S, Xie C, Li X, Yang D, Hu L, Zhong Y, Zhang Y, Liu W. MMP-2-mediated Scube2 degradation promotes blood-brain barrier disruption by blocking the interaction between astrocytes and endothelial cells via inhibiting Sonic hedgehog pathway during early cerebral ischemia. J Neurochem 2023. [PMID: 38148633 DOI: 10.1111/jnc.16021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 09/22/2023] [Accepted: 11/04/2023] [Indexed: 12/28/2023]
Abstract
We have previously demonstrated a rapid secretion of matrix metalloproteinase-2 (MMP-2) in the ischemic brain. Since Scube2 can interact with Sonic hedgehog (Shh) to maintain blood-brain barrier (BBB) integrity via regulating the interaction between brain capillary endothelial cells (ECs) and perivascular astrocytes, and it is also a substrate of MMP-2, we hypothesized that the secreted MMP-2 could degrade Scube2 and contribute to ischemic BBB disruption. Using an in vitro ischemic model of 90-min oxygen-glucose deprivation/3-h reoxygenation (OGD/R) and an in vivo mouse stroke model of 90-min middle cerebral artery occlusion (MCAO) with 3-h reperfusion, we established an important role of MMP-2-mediated Scube2 degradation in early ischemic BBB disruption. Exposure of C8-D1A cells and bEnd.3 cells to OGD/R increased MMP secretion in both cells, and C8-D1A cells appeared to secrete more MMPs than bEnd.3 cells. Co-IP and double-immunostaining revealed that Scube2 co-localized well with MMP-2 in C8-D1A cells and could be pulled down by MMP-2 antibodies. In MCAO mice, Scube2 protein showed a drastic reduction in ischemic brain tissue, which was accompanied by suppressed expression of Shh and its downstream molecules. Of note, specific knockdown of astrocytic Scube2 with AAV-shScube2 augmented MCAO-induced Shh suppression and exacerbated BBB leakage and inflammatory reactions in the ischemic brain. Last, incubation of bEnd.3 cells with conditioned medium derived from OGD-treated C8-D1A cells led to a significant inhibition of the Shh pathway in bEnd.3 cells and degradation of VE-cadherin and ZO-1. Inhibition of MMP-2 with SB-3CT or over-expression of Scube2 with plasmids in C8-D1A cells alleviated the above effect of C8-D1A cells-derived conditioned medium. Taken together, our data indicate that ischemia-induced secretion of MMP-2 may contribute to early BBB disruption in ischemic stroke via interrupting the shared Scube2-Shh pathway between brain capillary ECs and perivascular astrocytes.
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Affiliation(s)
- Tengrui Shi
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China
| | - Shiqin Yue
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China
- School of Pharmaceutical Sciences, Health Science Center, Shenzhen University, Shenzhen, China
| | - Cong Xie
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China
- Department of Neurosurgery, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Graduate School of Guangzhou Medical University, Shenzhen, China
| | - Xiaofeng Li
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China
| | - Dexin Yang
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China
| | - Linghui Hu
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China
- Department of Neurosurgery, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Graduate School of Guangzhou Medical University, Shenzhen, China
| | - Yunxue Zhong
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China
- Graduate Collaborative Training Base of Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Hengyang Medical School, University of South China, Shenzhen, China
| | - Yuan Zhang
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China
| | - Wenlan Liu
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China
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Chen B, Xie C, Shi T, Yue S, Li W, Huang G, Zhang Y, Liu W. Activation of Swell1 in microglia suppresses neuroinflammation and reduces brain damage in ischemic stroke. Neurobiol Dis 2023; 176:105936. [PMID: 36511337 DOI: 10.1016/j.nbd.2022.105936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 10/17/2022] [Accepted: 11/25/2022] [Indexed: 11/29/2022] Open
Abstract
Cl- movement and Cl--sensitive signal pathways contributes to the survival and switch of inflammatory phenotype of microglia and are believed to play a key role in the inflammatory brain injury after ischemic stroke. Here, we demonstrated an important role of Cl- transmembrane transporter Swell1, in the survival and M2-like polarization of microglia in ischemic stroke. Knockdown or overexpression of Swell1 in cultured microglia inhibited or increased hypotonic-activated Cl- currents, respectively, and these changes were completely blocked by the volume-regulated anion channels (VRACs) inhibitor DCPIB. Swell1 conditional knock-in mice promoted microglia survival in ischemic brain region and resulted in significant reductions in neural cell death, infarction volume and neurological deficits following transient middle cerebral artery occlusion (tMCAO). Using gene manipulating technique and pharmacological inhibitors, we further revealed that Swell1 opening led to SGK1 (a Cl--sensitive kinase)-mediated activation of FOXO3a/CREB as well as WNK1 (another Cl--sensitive kinase)-mediated SPAK/OSR1-CCCs activation, which promoted microglia survival and M2-like polarization, thereby attenuating neuroinflammation and ischemic brain injury. Taken together, our results demonstrated that Swell1 is an essential component of microglia VRACs and its activation protects against ischemic brain injury through promoting microglia survival and M2-like polarization.
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Affiliation(s)
- Baoyi Chen
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen 518035, China
| | - Cong Xie
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen 518035, China; Department of Neurosurgery, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Graduate School of Guangzhou Medical University, Shenzhen 518035, China
| | - Tengrui Shi
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen 518035, China
| | - Shiqin Yue
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen 518035, China; School of Pharmaceutical Sciences, Health Science Center, Shenzhen University, Shenzhen 518035, China
| | - Weiping Li
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen 518035, China
| | - Guodong Huang
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen 518035, China
| | - Yuan Zhang
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen 518035, China.
| | - Wenlan Liu
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen 518035, China.
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Shi T, Feng Y, Wang C, Liu H, Li T, Liu WD, Zhou HB, Aini A, Mei X, Guo XW, Jiang MS, Gao F. [Clinical and endoscopic characteristics of adult celiac disease]. Zhonghua Nei Ke Za Zhi 2023; 62:35-42. [PMID: 36631035 DOI: 10.3760/cma.j.cn112138-20220220-00130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Objective: The study aimed to analyze the clinical and endoscopic characteristics of adult celiac disease (CD) to provide a scientific basis for more effective CD diagnosis and treatment. Methods: In this cross-sectional study, the clinical and endoscopic data of 96 adult CD patients treated in the Department of Gastroenterology of the People's Hospital of Xinjiang Uygur Autonomous Region from March 2016 to December 2021 were retrospectively collected and analyzed. Results: A total of 96 CD patients were diagnosed, including 33 men and 63 women. The average age was 47±14 years (range, 18-81 years). The disease occurred mainly in the age group of 31-60 years. The median course of the disease was 2.0 (0.2-40.0) years. There were 41 (42.7%) classical and 55 (57.3%) non-classical CD patients. All patients with classical CD showed chronic diarrhea, often accompanied by abdominal pain (46.3%, 19/41), abdominal distension (17.1%, 7/41), anemia (65.9%, 27/41), and chronic fatigue (48.8%, 20/41). The main manifestations of non-classical CD were chronic abdominal pain (58.2%, 32/55), abdominal distension (32.7%, 18/55), anemia (40.0%, 22/55), and osteopenia/osteoporosis (38.2%, 21/55). Compared with non-classical CD, anemia developed more frequently in classical CD, and the difference was statistically significant (P = 0.012). The incidence of complications in CD patients was 36.5% (35/96), and the main complications were thyroid disease (19.8%, 19/96), connective tissue disease (6.2%, 6/96), and kidney disease (6.2%, 6/96). There was no significant difference between classical and non-classical CD (P>0.05). The frequency of endoscopic manifestations in CD patients was 84.4% (81/96). Duodenal bulb endoscopy showed nodular changes (72.9%, 70/96), grooved changes (10.4%, 10/96), and focal villous atrophy (9.4%, 9/96). The main manifestations of descending endoscopy were the decrease, flattening, or disappearance of duodenal folds (43.8%, 42/96), scallop-like changes (38.5%, 37/96), and nodular changes (34.4%, 33/96). Conclusions: Adult CD patients are mostly female. CD occurred mainly in the age group of 31-60 years. The clinical manifestations were mainly those of non-classical CD. Some patients often had other autoimmune diseases. Patients with characteristic endoscopic manifestations should be warned about the possibility of developing CD. Clinicians should strengthen the understanding of CD and reduce the related rates of missed diagnosis.
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Affiliation(s)
- T Shi
- Department of Gastroenterology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830001, China Xinjiang Digestive System Disease Clinical Medicine Research Center, Urumqi 830011, China Xinjiang Medical University, Urumqi 830011, China
| | - Y Feng
- Department of Gastroenterology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830001, China Xinjiang Digestive System Disease Clinical Medicine Research Center, Urumqi 830011, China
| | - C Wang
- Department of Pathology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830001, China
| | - H Liu
- Department of Gastroenterology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830001, China Xinjiang Digestive System Disease Clinical Medicine Research Center, Urumqi 830011, China
| | - T Li
- Department of Gastroenterology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830001, China Xinjiang Digestive System Disease Clinical Medicine Research Center, Urumqi 830011, China
| | - W D Liu
- Department of Gastroenterology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830001, China Xinjiang Digestive System Disease Clinical Medicine Research Center, Urumqi 830011, China
| | - H B Zhou
- Department of Gastroenterology, People's Hospital of Kizilsu Kirgiz Autonomous Prefecture, Kizilsu Kirgiz Autonomous Prefecture 845350, China
| | - Abudureyimu Aini
- Department of Gastroenterology, Kashgar Second People's Hospital, Kashgar 844099, China
| | - X Mei
- Department of Gastroenterology, Altay Regional People's Hospital, Altay 836500, China
| | - X W Guo
- Department of Gastroenterology, Aksu People's Hospital, Aksu 843099, China
| | - M S Jiang
- Department of Gastroenterology, Turpan People's Hospital, Turpan 838099, China
| | - F Gao
- Department of Gastroenterology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830001, China Xinjiang Digestive System Disease Clinical Medicine Research Center, Urumqi 830011, China
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Wang Y, Song X, Shi T, Wang H, Zhang X, Liu B, Wei J. 1230P Immunotherapies for gastric cancer with CLDN18-ARHGAP fusion gene. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Wang Y, Shi T, Deng J, Wu J, Qu Y, Zhang Y, Zhu X, Liang B, Yu Q, Du H, Jie L. AB0390 COST-EFFECTIVENESS OF IGURATIMOD IN PATIENTS WITH RHEUMATOID ARTHRITIS (RA) BY USING A CLAIMS-BASED ALGORITHM: RETROSPECTIVE ANALYSIS OF REAL‑WORLD DATA. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundIguratimod (IGU), as one of the conventional synthetic disease-modifying antirheumatic drugs (csDMARDs), has been approved by National Medical Products Administration (NMPA) to treat Rheumatoid arthritis (RA).ObjectivesThis study aimed to compare the cost-effectiveness of well-established RA therapies using a claims-based algorithm in RA patients.MethodsAn electronic medical record (EMR) database from Zhujiang Hospital was utilized to estimate the cost-effectiveness of medication for RA patients, including IGU with MTX, biological DMARDs (bDMARDs) with MTX, and MTX alone for more than 6 months from 2014 to 2020. Patients who were deemed effective must meet all the following criteria according to the algorithm, high adherence; no bDMARDs or IGU switch or addition; no prescription of new csDMARDs; no increase in dose or frequency of index drug; no new use of chronic glucocorticoids or increase in glucocorticoid dose; and no more than one glucocorticoid injection. Average cost was calculated by summing total cost of effective treatment and dividing by number of patients achieving efficacy in each group.ResultsA total of 263 patients were included in the analysis. Based on a claims-based algorithm, the effective rate was 27.1 % (26/96) for IGU with MTX group, 11.2% (7/62) for bDMARDs with MTX group, and 13.3% (14/105) for MTX alone group, respectively. Average cost of effective treatment was $833.46 for IGU with MTX therapy, $2554.57 for bDMARDs with MTX therapy, and $171.48 for MTX alone (Table 1).Table 1.Effectiveness and Cost per Effectively Treated Patient with RACriteriaAll patients (n=263)IGU with MTX group(n=96)bDMARDs with MTX group (n=62)MTX (n=105)Effectiveness:no. of patients (%)a47(17.87%)26 (27.1%)7 (11.2/%)14 (13.3%)Cost of all RA-related medication per effectively treated patient(SD)$892.75(911.57)$833.46 (252.67)$2554.5 (1273.13)$171.4 (110.33)Average cost of all RA medications postindex (excluding biologic DMARDs) per patient (SD)b$146.38(114.60)$148.81 (123.12)$86.90 (74.53)$171.4 (110.33)Average cost of only biologicDMARDs postindex per patient (SD)b$746.38(926.35)$684.27(188.67)$2468.67(1285.91)/a χ2showed significant difference in percentage effectiveness for the original algorithm (p<0.05).bMedication cost was 2020 U.S. dollars.ConclusionIGU with MTX therapy was revealed to be both effective and modestly priced, which seemed to be a cost-effective strategy for RA therapy and warranted further cost-effectiveness investigation.References[1](2018) [2018 Chinese guideline for the diagnosis and treatment of rheumatoid arthritis]. Zhonghua Nei Ke Za Zhi 57 (4), 242-251. https://doi.org/10.3760/cma.j.issn.0578-1426.2018.04.004[2]Hitchon, C. A., & El-Gabalawy, H. S. (2011). The synovium in rheumatoid arthritis. The open rheumatology journal, 5, 107–114. https://doi.org/10.2174/1874312901105010107[3]Smolen, J. S., Landewé, R., Bijlsma, J., Burmester, G. R., Dougados, M., Kerschbaumer, A., McInnes, I. B., Sepriano, A., van Vollenhoven, R. F., de Wit, M., Aletaha, D., Aringer, M., Askling, J., Balsa, A., Boers, M., den Broeder, A. A., Buch, M. H., Buttgereit, F., Caporali, R., Cardiel, M. H., … van der Heijde, D. (2020). EULAR recommendations for the management of rheumatoid arthritis with synthetic and biological disease-modifying antirheumatic drugs: 2019 update. Annals of the rheumatic diseases, 79(6), 685–699. https://doi.org/10.1136/annrheumdis-2019-216655[4]Fraenkel, L., Bathon, J. M., England, B. R., St Clair, E. W., Arayssi, T., Carandang, K., Deane, K. D., Genovese, M., Huston, K. K., Kerr, G., Kremer, J., Nakamura, M. C., Russell, L. A., Singh, J. A., Smith, B. J., Sparks, J. A., Venkatachalam, S., Weinblatt, M. E., Al-Gibbawi, M., Baker, J. F., … Akl, E. A. (2021). 2021 American College of Rheumatology Guideline for the Treatment of Rheumatoid Arthritis. Arthritis care & research, 73(7), 924–939. https://doi.org/10.1002/acr.24596Disclosure of InterestsNone declared
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Knörzer J, Shi T, Demler E, Cirac JI. Spin-Holstein Models in Trapped-Ion Systems. Phys Rev Lett 2022; 128:120404. [PMID: 35394310 DOI: 10.1103/physrevlett.128.120404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 12/29/2021] [Accepted: 03/07/2022] [Indexed: 06/14/2023]
Abstract
In this work, we highlight how trapped-ion quantum systems can be used to study generalized Holstein models, and benchmark expensive numerical calculations. We study a particular spin-Holstein model that can be implemented with arrays of ions confined by individual microtraps, and that is closely related to the Holstein model of condensed matter physics, used to describe electron-phonon interactions. In contrast to earlier proposals, we focus on simulating many-electron systems and inspect the competition between charge-density wave order, fermion pairing, and phase separation. In our numerical study, we employ a combination of complementary approaches, based on non-Gaussian variational ansatz states and matrix product states, respectively. We demonstrate that this hybrid approach outperforms standard density-matrix renormalization group calculations.
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Affiliation(s)
- J Knörzer
- Max-Planck-Institute of Quantum Optics, Hans-Kopfermann-Straße 1, D-85748 Garching, Germany
- Munich Center for Quantum Science and Technology (MCQST), Schellingstraße 4, D-80799 München, Germany
| | - T Shi
- CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, P.O. Box 2735, Beijing 100190, China
- CAS Center for Excellence in Topological Quantum Computation, University of Chinese Academy of Sciences, Beijing 100049, China
| | - E Demler
- Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
- Institute for Theoretical Physics, ETH Zurich, 8093 Zurich, Switzerland
| | - J I Cirac
- Max-Planck-Institute of Quantum Optics, Hans-Kopfermann-Straße 1, D-85748 Garching, Germany
- Munich Center for Quantum Science and Technology (MCQST), Schellingstraße 4, D-80799 München, Germany
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Bradley DT, Murphy S, McWilliams P, Arnold S, Lavery S, Murphy J, de Lusignan S, Hobbs R, Tsang RSM, Akbari A, Torabi F, Beggs J, Chuter A, Shi T, Vasileiou E, Robertson C, Sheikh A, Reid H, O'Reilly D. Investigating the association between COVID-19 vaccination and care home outbreak frequency and duration. Public Health 2022; 203:110-115. [PMID: 35038629 PMCID: PMC8683272 DOI: 10.1016/j.puhe.2021.12.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 12/09/2021] [Accepted: 12/13/2021] [Indexed: 11/30/2022]
Abstract
OBJECTIVES At the end of 2020, many countries commenced a vaccination programme against SARS-CoV-2. Public health authorities aim to prevent and interrupt outbreaks of infectious disease in social care settings. We aimed to investigate the association between the introduction of the vaccination programme and the frequency and duration of COVID-19 outbreaks in Northern Ireland (NI). STUDY DESIGN We undertook an ecological study using routinely available national data. METHODS We used Poisson regression to measure the relationship between the number of RT-PCR confirmed COVID-19 outbreaks in care homes, and as a measure of community COVID-19 prevalence, the Office for National Statistics COVID-19 Infection Survey estimated the number of people testing positive for COVID-19 in NI. We estimated the change in this relationship and estimated the expected number of care home outbreaks in the absence of the vaccination programme. A Cox proportional hazards model estimated the hazard ratio of a confirmed COVID-19 care home outbreak closure. RESULTS Care home outbreaks reduced by two-thirds compared to expected following the introduction of the vaccination programme, from a projected 1625 COVID-19 outbreaks (95% prediction interval 1553-1694) between 7 December 2020 and 28 October 2021 to an observed 501. We estimated an adjusted hazard ratio of 2.53 of the outbreak closure assuming a 21-day lag for immunity. CONCLUSIONS These findings describe the association of the vaccination with a reduction in outbreak frequency and duration across NI care homes. This indicates probable reduced harm and disruption from COVID-19 in social care settings following vaccination. Future research using individual level data from care home residents will be needed to investigate the effectiveness of the vaccines and the duration of their effects.
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Affiliation(s)
- D T Bradley
- Public Health Agency, Belfast, UK; Centre for Public Health, Queen's University Belfast, Belfast, UK
| | - S Murphy
- Centre for Public Health, Queen's University Belfast, Belfast, UK.
| | | | - S Arnold
- Public Health Agency, Belfast, UK
| | - S Lavery
- Public Health Agency, Belfast, UK
| | - J Murphy
- Public Health Agency, Belfast, UK
| | - S de Lusignan
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - R Hobbs
- Nuffield Department of Health Care Sciences, University of Oxford, Oxford, UK
| | - R S M Tsang
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - A Akbari
- Population Data Science and Health Data Research UK, Swansea University, Swansea, UK
| | - F Torabi
- Population Data Science, Swansea University Medical School, UK
| | - J Beggs
- BREATHE- The Health Data Research Hub For Respiratory Health, UK
| | - A Chuter
- BREATHE- The Health Data Research Hub For Respiratory Health, UK
| | - T Shi
- Usher Institute, University of Edinburgh, Edinburgh, UK
| | - E Vasileiou
- Usher Institute, University of Edinburgh, Edinburgh, UK
| | - C Robertson
- Public Health Scotland, UK; University of Strathclyde, Glasgow, UK
| | - A Sheikh
- Usher Institute, University of Edinburgh, Edinburgh, UK; BREATHE- The Health Data Research Hub For Respiratory Health, UK
| | - H Reid
- Public Health Agency, Belfast, UK
| | - D O'Reilly
- Centre for Public Health, Queen's University Belfast, Belfast, UK
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Zhang RH, Wang C, Shi T, Chen XJ, Xu JF, Shi M, Li LQ. Pharmacokinetics of HupA-PLGA-NPs of different sizes in the mouse blood and brain determined by LC-MS/MS. Eur Rev Med Pharmacol Sci 2022; 26:1183-1195. [PMID: 35253175 DOI: 10.26355/eurrev_202202_28111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
OBJECTIVE Huperzine A, which was extracted from a Chinese herb, is a reversible and selective inhibitor of acetylcholinesterase (AChE), which is used as an anti-Alzheimer's drug that exerts evident pretreatment effects against exposure to organophosphate chemical warfare agents or pesticides. The aims of this study were to establish an LC-MS/MS method for the detection of HupA in biological samples and to investigate the pharmacokinetics of HupA polylactic-co-glycolic acid nanoparticles (HupA-PLGA-NPs) with different diameters in mice. MATERIALS AND METHODS The proposed LC-MS/MS method was established by optimizing the MS conditions and validating the specificity, linear range, lower limit, precision, accuracy, matrix effects, absolute recovery, and sample stability of the method. ICR mice were divided into three treatment groups: the HupA control group, the 46.4-nm HupA-PLGA-NP group and the 208.5-nm HupA-PLGA-NP group. All the mice in the three groups were administered 0.5 mg/kg HupA via the tail vein. The pharmacokinetic parameters in plasma and the brain were detected by LC-MS/MS. Pharmacokinetic parameters were analyzed using PKS pharmacokinetic software, and the relative bioavailability and brain-targeted drug targeting efficiency (DTE) were also calculated. RESULTS The distributions of HupA-PLGA-NP groups showed marked changes compared with that of HupA in mice in vivo, and the particle size of nanodrugs exerted a significant effect on the pharmacokinetic parameters in mice. The half-life (T1/2) values in plasma of the 46.4- and 208.5-nm HupA-PLGA-NPs were 1.53- and 1.96-fold longer than that of the HupA at the same dose. The bioavailabilities of the two nanoparticles were 1.93- and 2.19-fold higher than that of HupA, respectively. In the brain, the Tmax values of the two HupA-PLGA-NPs of different sizes was 1.25 h, which was clearly longer than that of HupA (0.5 h), and the corresponding T1/2 values were 12.53 h and 8.47 h, which were 1.82- and 1.23-fold higher than that of HupA (6.89 h). In addition, the brain targeting index of the 46.40-nm HupA-PLGA-NPs was 1.48, which revealed an evident brain-targeting effect. CONCLUSIONS The LC-MS/MS method has the advantages of good specificity, high sensitivity and needing a low sample amount and is economical and particularly suitable for determining the drug content in plasma and brain samples. The NP size is associated with the distribution patterns of nanodrugs. Therefore, a particular NP size can be selected to maximize the pharmacodynamics effects and control the toxicity of nanodrugs.
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Affiliation(s)
- R-H Zhang
- State Key Laboratory of NBC Protection for Civilian, Beijing, China.
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10
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Zhang YX, Shi T, Su QR, Deng JK. [Clinical characteristics and related factors of human respiratory syncytial viruses infection in premature infants within 2 years after birth in Shenzhen Children's Hospital]. Zhonghua Yi Xue Za Zhi 2021; 101:2873-2877. [PMID: 34587727 DOI: 10.3760/cma.j.cn112137-20210226-00505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Objective: To analyze the clinical characteristics and factors associated with human respiratory syncytial virus (HRSV) infection in preterm infants within the first 2 years of life. Methods: Children with respiratory tract infections admitted to Shenzhen Children's Hospital during the 3-year period from January 2016 to December 2018 who were <2 years old and whose gestational age at birth was <37 weeks were selected, and those who met the diagnostic criteria for RSV infection were categorized as the positive case group, and those who had no detectable influenza virus, parainfluenza virus and adenovirus antigens were categorized as the negative group. The clinical characteristics of the case group were retrospectively analyzed. A multivariable logistic regression model was used to analyze the associated factors. Results: A total of 1, 483 children were included, of whom 149 (10.1%) were HRSV positive (case group) and 447 (30.1%) were in the negative group (control group). In the case group, there were 88 (59.1%) male and 61 (40.1%) female children; 127 children (85.2%) in the mild-to-moderate disease group and 22 children (14.8%) in the severe disease group. The number of cases in the severe disease group was greater than that in the mild-to-moderate disease group [(17 cases, 77.3%) than (59 cases, 46.5%)], with statistical significance (P=0.010). A total of 117 cases (78.5%) had onset from February to July. Multivariable analysis showed that males [OR (95%CI) of 0.105 (0.013-0.112)], age at month [0.045 (0.036-0.112)], congenital heart disease [0.388 (0.206-0.940)] and bronchopulmonary dysplasia [0.622 (0.484-0.927)] were positively associated with HRSV infection in preterm infants. Conclusion: The high prevalence of HRSV infection in preterm infants in Shenzhen is from February to July each year, and male children are more common. Young age, congenital heart disease and bronchopulmonary dysplasia are all independent risk factors for HRSV infection in preterm infants.
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Affiliation(s)
- Y X Zhang
- Shantou University Medical College,Shantou 515041,China
| | - T Shi
- Usher Institute, the University of Edinburgh, Edinburgh EH8 9AG, UK
| | - Q R Su
- Shenzhen Children's Hospital Affiliated to Shantou University Medical College, Institute of Pediatrics, Shenzhen 518038
| | - J K Deng
- Shenzhen Children's Hospital Affiliated to Shantou University Medical College, Department of infection, Shenzhen 518038
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11
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Shi T, Sun D, Jovanovic I, Kalinchenko G, Krushelnick K, Kuranz CC, Maksimchuk A, Nees J, Thomas AGR, Willingale L. Optimization of the electron beam dump for a GeV-class laser electron accelerator. Appl Radiat Isot 2021; 176:109853. [PMID: 34298462 DOI: 10.1016/j.apradiso.2021.109853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 06/06/2021] [Accepted: 06/30/2021] [Indexed: 11/19/2022]
Abstract
The advances of laser-driven electron acceleration offer the promise of great reductions in the size of high-energy electron accelerator facilities. Accordingly, it is desirable to design compact radiation shielding for such facilities. A key component of radiation shielding is the high-energy electron beam dump. In an effort to optimize the electron beam dump design, different material combinations have been simulated with the FLUKA Monte Carlo code in the range of 1-40 GeV. The studied beam dump configurations consist of alternating layers of high-Z material (lead or iron) and low-Z material (high-density concrete or borated polyethylene) in either three-layer or five-layer structures. The designs of various beam dump configuration have been compared and it has been found that the iron and concrete stacking in a three-layer structure with a thick iron layer results in the lowest dose at 1, 10, and 40 GeV. The performance of the beam dump exhibits a strong dependence on the selected materials, the stacking method, the beam dump thickness, as well as the electron energy. This parametric study provides general insights that can be used for compact shielding design of future electron accelerator facilities.
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Affiliation(s)
- T Shi
- Department of Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, MI 48109, United States
| | - D Sun
- Department of Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, MI 48109, United States
| | - I Jovanovic
- Department of Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, MI 48109, United States; Gérard Mourou Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, MI 48109, United States.
| | - G Kalinchenko
- Gérard Mourou Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, MI 48109, United States; Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, MI 48109, United States
| | - K Krushelnick
- Department of Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, MI 48109, United States; Gérard Mourou Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, MI 48109, United States
| | - C C Kuranz
- Department of Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, MI 48109, United States; Gérard Mourou Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, MI 48109, United States
| | - A Maksimchuk
- Gérard Mourou Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, MI 48109, United States; Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, MI 48109, United States
| | - J Nees
- Gérard Mourou Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, MI 48109, United States; Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, MI 48109, United States
| | - A G R Thomas
- Department of Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, MI 48109, United States; Gérard Mourou Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, MI 48109, United States
| | - L Willingale
- Gérard Mourou Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, MI 48109, United States; Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, MI 48109, United States
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12
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Ren EJ, Guardia A, Shi T, Begeman P, Ren W, Vaidya R. A distinctive release profile of vancomycin and tobramycin from a new and injectable polymeric dicalcium phosphate dehydrate cement (P-DCPD). Biomed Mater 2021; 16:025019. [PMID: 33361554 DOI: 10.1088/1748-605x/abd689] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A novel injectable polymeric dicalcium phosphate dehydrate (P-DCPD) cement was developed with superior mechanical strength and excellent cohesion. The purpose of this study was to assess the in vitro performance of P-DCPD loaded with vancomycin (VAN-P), tobramycin (TOB-P) and combination of both (VAN/TOB-P) (10%, w/w). There is a distinctive release profile between VAN and TOB. VAN-P showed decreased initial burst (<30% within 3 d) and sustained VAN release (76% in 28 d). In the presence of TOB (VAN/TOB-P), >90% of VAN was released within 3 d (p < 0.05). Slow and limited TOB release was observed both in TOB-P (<5%) and in TOB/VAN-P (<1%) over 28 d. Zone of inhibition (ZOI) of Staphylococcus aureus growth showed that eluents collected from VAN-P had stronger and longer ZOI (28 d) than that from TOB-P (14 d, p < 0.05). Direct contact of VAN-P, TOB-P and VAN/TOB-P cements displayed persistent and strong ZOI for >3 weeks. Interestingly, the cement residues (28 d after drug release) still maintained strong ZOI ability. P-DCPD with or without antibiotics loading were nontoxic and had no inferior impacts on the growth of osteoblastic MC3T3 cells. VAN-P and TOB-P were injectable. No significant influence on setting time was observed in both VAN-P (11.7 ± 1.9 min) and VAN/TOB-P (10.8 ± 1.5 min) as compared to control (12.2 ± 2.6 min). We propose that a distinctive release profile of VAN and TOB observed is mainly due to different distribution pattern of VAN and TOB within P-DCPD matrix. A limited release of TOB might be due to the incorporation of TOB inside the crystalline lattice of P-DCPD crystals. Our data supported that the bactericidal efficacy of antibiotics-loaded P-DCPD is not only depend on the amount and velocity of antibiotics released, but also probably more on the direct contact of attached bacteria on the degrading cement surface.
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Affiliation(s)
- E J Ren
- Department of Orthopaedic Surgery, Detroit Medical Center, Detroit, MI 48201, United States of America
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Simpson CR, Shi T, Vasileiou E, Katikireddi SV, Kerr S, Moore E, McCowan C, Agrawal U, Shah SA, Ritchie LD, Murray J, Pan J, Bradley DT, Stock SJ, Wood R, Chuter A, Beggs J, Stagg HR, Joy M, Tsang RSM, de Lusignan S, Hobbs R, Lyons RA, Torabi F, Bedston S, O’Leary M, Akbari A, McMenamin J, Robertson C, Sheikh A. First-dose ChAdOx1 and BNT162b2 COVID-19 vaccines and thrombocytopenic, thromboembolic and hemorrhagic events in Scotland. Nat Med 2021; 27:1290-1297. [PMID: 34108714 PMCID: PMC8282499 DOI: 10.1038/s41591-021-01408-4] [Citation(s) in RCA: 171] [Impact Index Per Article: 57.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 05/26/2021] [Indexed: 02/04/2023]
Abstract
Reports of ChAdOx1 vaccine-associated thrombocytopenia and vascular adverse events have led to some countries restricting its use. Using a national prospective cohort, we estimated associations between exposure to first-dose ChAdOx1 or BNT162b2 vaccination and hematological and vascular adverse events using a nested incident-matched case-control study and a confirmatory self-controlled case series (SCCS) analysis. An association was found between ChAdOx1 vaccination and idiopathic thrombocytopenic purpura (ITP) (0-27 d after vaccination; adjusted rate ratio (aRR) = 5.77, 95% confidence interval (CI), 2.41-13.83), with an estimated incidence of 1.13 (0.62-1.63) cases per 100,000 doses. An SCCS analysis confirmed that this was unlikely due to bias (RR = 1.98 (1.29-3.02)). There was also an increased risk for arterial thromboembolic events (aRR = 1.22, 1.12-1.34) 0-27 d after vaccination, with an SCCS RR of 0.97 (0.93-1.02). For hemorrhagic events 0-27 d after vaccination, the aRR was 1.48 (1.12-1.96), with an SCCS RR of 0.95 (0.82-1.11). A first dose of ChAdOx1 was found to be associated with small increased risks of ITP, with suggestive evidence of an increased risk of arterial thromboembolic and hemorrhagic events. The attenuation of effect found in the SCCS analysis means that there is the potential for overestimation of the reported results, which might indicate the presence of some residual confounding or confounding by indication. Public health authorities should inform their jurisdictions of these relatively small increased risks associated with ChAdOx1. No positive associations were seen between BNT162b2 and thrombocytopenic, thromboembolic and hemorrhagic events.
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Affiliation(s)
- C. R. Simpson
- grid.267827.e0000 0001 2292 3111School of Health, Wellington Faculty of Health, Victoria University of Wellington, Wellington, New Zealand ,grid.4305.20000 0004 1936 7988Usher Institute, University of Edinburgh, Edinburgh, UK
| | - T. Shi
- grid.4305.20000 0004 1936 7988Usher Institute, University of Edinburgh, Edinburgh, UK
| | - E. Vasileiou
- grid.4305.20000 0004 1936 7988Usher Institute, University of Edinburgh, Edinburgh, UK
| | - S. V. Katikireddi
- grid.8756.c0000 0001 2193 314XMRC/CSO Social & Public Health Sciences Unit, University of Glasgow, Glasgow, UK
| | - S. Kerr
- grid.4305.20000 0004 1936 7988Usher Institute, University of Edinburgh, Edinburgh, UK
| | - E. Moore
- grid.508718.3Public Health Scotland, Glasgow, Scotland
| | - C. McCowan
- grid.11914.3c0000 0001 0721 1626School of Medicine, University of St. Andrews, St. Andrews, UK
| | - U. Agrawal
- grid.11914.3c0000 0001 0721 1626School of Medicine, University of St. Andrews, St. Andrews, UK
| | - S. A. Shah
- grid.4305.20000 0004 1936 7988Usher Institute, University of Edinburgh, Edinburgh, UK
| | - L. D. Ritchie
- grid.7107.10000 0004 1936 7291Centre of Academic Primary Care, University of Aberdeen, Aberdeen, UK
| | - J. Murray
- grid.508718.3Public Health Scotland, Glasgow, Scotland
| | - J. Pan
- grid.11984.350000000121138138Department of Mathematics and Statistics, University of Strathclyde, Glasgow, UK
| | - D. T. Bradley
- grid.4777.30000 0004 0374 7521Queen’s University Belfast, Belfast, UK ,grid.454053.30000 0004 0494 5490Public Health Agency, Belfast, Northern Ireland
| | - S. J. Stock
- grid.4305.20000 0004 1936 7988Usher Institute, University of Edinburgh, Edinburgh, UK
| | - R. Wood
- grid.4305.20000 0004 1936 7988Usher Institute, University of Edinburgh, Edinburgh, UK ,grid.508718.3Public Health Scotland, Glasgow, Scotland
| | - A. Chuter
- grid.507332.0Health Data Research UK, BREATHE Hub, Edinburgh, UK
| | - J. Beggs
- grid.507332.0Health Data Research UK, BREATHE Hub, Edinburgh, UK
| | - H. R. Stagg
- grid.4305.20000 0004 1936 7988Usher Institute, University of Edinburgh, Edinburgh, UK
| | - M. Joy
- grid.4991.50000 0004 1936 8948Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - R. S. M. Tsang
- grid.4991.50000 0004 1936 8948Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - S. de Lusignan
- grid.4991.50000 0004 1936 8948Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - R. Hobbs
- grid.4991.50000 0004 1936 8948Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - R. A. Lyons
- grid.4827.90000 0001 0658 8800Population Data Science, Swansea University, Swansea, UK
| | - F. Torabi
- grid.4827.90000 0001 0658 8800Population Data Science, Swansea University, Swansea, UK
| | - S. Bedston
- grid.4827.90000 0001 0658 8800Population Data Science, Swansea University, Swansea, UK
| | - M. O’Leary
- grid.508718.3Public Health Scotland, Glasgow, Scotland
| | - A. Akbari
- grid.4827.90000 0001 0658 8800Population Data Science, Swansea University, Swansea, UK
| | - J. McMenamin
- grid.508718.3Public Health Scotland, Glasgow, Scotland
| | - C. Robertson
- grid.508718.3Public Health Scotland, Glasgow, Scotland ,grid.11984.350000000121138138Department of Mathematics and Statistics, University of Strathclyde, Glasgow, UK
| | - A. Sheikh
- grid.4305.20000 0004 1936 7988Usher Institute, University of Edinburgh, Edinburgh, UK ,grid.507332.0Health Data Research UK, BREATHE Hub, Edinburgh, UK
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Chen LZ, Lin ZH, Chen J, Liu SS, Shi T, Xin YN. Can elevated concentrations of ALT and AST predict the risk of 'recurrence' of COVID-19? Epidemiol Infect 2020; 148:e218. [PMID: 32951624 PMCID: PMC7522471 DOI: 10.1017/s0950268820002186] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 08/08/2020] [Accepted: 08/28/2020] [Indexed: 12/15/2022] Open
Abstract
'Recurrence' of coronavirus disease 2019 (COVID-19) has triggered numerous discussions of scholars at home and abroad. A total of 44 recurrent cases of COVID-19 and 32 control cases admitted from 11 February to 29 March 2020 to Guanggu Campus of Tongji Hospital affiliated to Tongji Medical College Huazhong University of Science and Technology were enrolled in this study. All the 44 recurrent cases were classified as mild to moderate when the patients were admitted for the second time. The gender and mean age in both cases (recurrent and control) were similar. At least one concomitant disease was observed in 52.27% recurrent cases and 34.38% control cases. The most prevalent comorbidity among them was hypertension. Fever and cough being the most prevalent clinical symptoms in both cases. On comparing both the cases, recurrent cases had markedly elevated concentrations of alanine aminotransferase (ALT) (P = 0.020) and aspartate aminotransferase (AST) (P = 0.007). Moreover, subgroup analysis showed mild to moderate abnormal concentrations of ALT and AST in recurrent cases. The elevated concentrations of ALT and AST may be recognised as predictive markers for the risk of 'recurrence' of COVID-19, which may provide insights into the prevention and control of COVID-19 in the future.
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Affiliation(s)
- L. Z. Chen
- Department of Infectious Disease, Qingdao Municipal Hospital Group, Qingdao, China
| | - Z. H. Lin
- Department of Gastroenterology, Qingdao Municipal Hospital Group, Qingdao, China
| | - J. Chen
- Department of Respiratory and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - S. S. Liu
- Hepatology Laboratory, Qingdao Municipal Hospital Group, Qingdao, China
- Digestive Disease Key Laboratory of Qingdao, Qingdao, China
| | - T. Shi
- Department of Gastroenterology, Qingdao Municipal Hospital Group, Dalian Medical University, Qingdao, China
| | - Y. N. Xin
- Department of Infectious Disease, Qingdao Municipal Hospital Group, Qingdao, China
- Department of Gastroenterology, Qingdao Municipal Hospital Group, Qingdao, China
- Hepatology Laboratory, Qingdao Municipal Hospital Group, Qingdao, China
- Digestive Disease Key Laboratory of Qingdao, Qingdao, China
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Shao HJ, Li Q, Shi T, Zhang GZ, Shao F. LINC00707 promotes cell proliferation and invasion of colorectal cancer via miR-206/FMNL2 axis. Eur Rev Med Pharmacol Sci 2020; 23:3749-3759. [PMID: 31115001 DOI: 10.26355/eurrev_201905_17801] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Long non-coding RNAs (lncRNAs) have been verified to participate in the regulation of colorectal cancer (CRC). However, the role of LINC00707 in CRC still remains unknown. Here, we aim to study the role of LINC00707 in CRC. PATIENTS AND METHODS LINC00707 expression in 97 pairs of CRC tissues and adjacent normal tissues was determined by the quantitative Real Time-Polymerase Chain Reaction (qRT-PCR). LINC00707 overexpression or knockdown in SW620 or HCT116 cells was achieved by lentivirus transfection. The proliferation and cell circle progression of established cells were detected by cell counting kit-8 (CCK-8) assay and flow cytometry, respectively. Cell invasion and migration abilities were studied by transwell assay. Dual-luciferase assay and Western blot was used to verify the underlying mechanism of LINC00707 in CRC. Nude mice were obtained to identify the in vivo function of LINC00707 in CRC. RESULTS LINC00707 was significantly over-expressed in CRC tissues and cell lines. Up-regulation of LINC00707 promoted cell proliferation, cell cycle progression, invasion, and migration of SW620 cells. Conversely, down-regulation of LINC00707 reduced cell growth and metastasis of HCT116 cells. MiR-206 was verified as a direct target of LINC00707, and its function was inhibited by LINC00707. FMNL2 was a target for miR-206 in CRC cells. Meanwhile, LINC00707 promoted tumor growth of CRC in vivo. CONCLUSIONS LINC00707 was up-regulated in CRC tissues and cells, which promoted cell proliferation and metastasis via sponging miR-206 to increase FMNL2 expression. This might provide a novel target for the biological treatment of CRC.
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Affiliation(s)
- H-J Shao
- Department of Proctology, The People's Hospital of Liaocheng, Liaocheng, China.
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Shi T. P2769Racial differences in outcomes among acute pulmonary embolism patients: a nationwide analysis. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.1086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Limited data is available regarding racial disparities in patients admitted for acute pulmonary embolism.
Purpose
We aimed to examine the impact of racial differences on outcomes in patients admitted for acute pulmonary embolism.
Methods
We used the Nationwide Inpatient Sample, which represents 20% of community hospital discharges in the US, to identify adult patients who were discharged with the primary diagnosis of acute pulmonary embolism in 2016 with ICD-10 codes. Logistic regression analysis and linear regression analysis were used to compare patients with different races. Outcomes were focused on in-hospital mortality, total cost, length of stay and disposition, adjusting gender, age, Charlson comorbid index and socioeconomic variables.
Results
In 2016, 35,526 patients were admitted with a primary diagnosis of acute pulmonary embolism. White patients were more likely to be older and with higher income. After adjusting for the above variables, white patients had lower total cost of hospitalization (p<0.0001), shorter length of stay (p<0.0001), lower in-hospital mortality (adjusted odds ratio = 0.79, p=0.001), and more likely to be discharged to rehabilitation facilities compared to being discharged home.
Outcomes in white vs non-white patients
Conclusion
Among acute pulmonary embolism hospitalizations, white patients generally had better outcomes despite being older in age, and were more likely to be transferred to rehabilitation facilities after discharge.
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Affiliation(s)
- T Shi
- Yale New Haven Health Bridgeport Hospital, Bridgeport, United States of America
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Han Y, Jin Y, Miao Y, Shi T, Lin X. Improved RANKL production by memory B cells: A way for B cells promote alveolar bone destruction during periodontitis. Int Immunopharmacol 2018; 64:232-237. [DOI: 10.1016/j.intimp.2018.08.033] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 08/02/2018] [Accepted: 08/23/2018] [Indexed: 12/20/2022]
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Huang L, Zhang Y, Yao YC, Cui FF, Shi T, Wang YW, Lan YJ. [Effects of Personality and Psychological Acceptance on Medical Workers' Occupational Stress]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2018; 36:519-522. [PMID: 30248767 DOI: 10.3760/cma.j.issn.1001-9391.2018.07.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To assess psychological acceptance and occupational stress of medical staff, analyze the relationship among personality, psychological acceptance and occupational stress and discuss the direct or indirect effects of personality to occupational stress. Methods: Eysenck Personality Questionnaire (EPQ-RSC) , Acceptance and Action Questionnaire-II (AAQ-Ⅱ) and Revised Occupational Stress Inventory (OSI-R) were administered to 749 medical staff. Results: The level of occupational stress of medical staff was high, the score of PSY was 26.8±7.13 and the score of PHS was 24.3±6.50. Personality and psychological acceptance can predict occupational stress. Psychological acceptance was a protective factor of occupational stress. Medical staff with personality of introversion, neuroticism and psychoticism suffered higher occupational stress. Personality have both direct and indirect effects on occupational stress. Neuroticism have the strongest effect on occupational stress with effect size of 0.496 (psychological stress) and 0.431 (physical strain) . Conclusion: Medical staff have heavier occupational stress. There is a significant correlation between personality and occupational stress. Measures depending on personality should be taken to deal with this situation.
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Affiliation(s)
- L Huang
- No 4 West China Teaching Hospital, West China School of Public Health, Sichuan University, Chengdu 610041, China
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Fu X, Liu M, Qu S, Ma J, Zhang Y, Shi T, Wen H, Yang Y, Wang S, Wang J, Nan K, Yao Y, Tian T. Exosomal microRNA-32-5p induces multidrug resistance in hepatocellular carcinoma via the PI3K/AKT pathway. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy268.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Li L, Zhang R, Yin Y, Shi T, Wang C, Chen X, Xu J. Subchronic inhaling toxicity study of diphenylcyanarsine in SD rats. Toxicol Lett 2018. [DOI: 10.1016/j.toxlet.2018.06.776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Liu R, Shi T, Li X, Wei S, Chen G, Chen J, Xu S. P3.02-097 Clinicopathological Features and Genetic Landscape of Pulmonary Large Cell Carcinoma under 2015 WHO Classification of NSCLC. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Xu S, Liu X, Liu R, Shi T, Li X, Zhong D, Wang Y, Chen G, Chen J. P3.01-002 Concurrent EGFR T790M Secondary Mutation and EMT in a Lung Adenocarcinoma Patient with EGFR TKI Drug Resistance. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Shi T, Xie Y, Fu Y, Zhou Q, Ma Z, Ma J, Huang Z, Zhang J, Chen J. The signaling axis of microRNA-31/interleukin-25 regulates Th1/Th17-mediated inflammation response in colitis. Mucosal Immunol 2017; 10:983-995. [PMID: 27901018 DOI: 10.1038/mi.2016.102] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Accepted: 10/01/2016] [Indexed: 02/04/2023]
Abstract
Interleukin-25 (IL-25) is an important regulatory cytokine that has a key role on mucosal immune tolerance during inflammation response. However, the molecular mechanism that regulates the colonic IL-25 expression in Crohn's disease (CD) remains unclear. In this study, IL-25 level was proved to decrease in 2,4,6-trinitrobenzene sulfonic acid (TNBS)-induced colitis mice and IL-10 knockout (KO) spontaneous colitis mice. An inverse correlation between IL-25 and miR-31 was discovered in the colons from model mice and CD patients. Furthermore, target validation analysis demonstrated that miR-31 directly regulated IL-25 expression by binding to its messenger RNA 3'-untranslated region. Changing colonic miR-31 level in the colitis mice could affect the mucosal IL-12/23-mediated Th1/Th17 pathway and lead to either amelioration or aggravation of colonic inflammation. In addition, the therapeutic effects of anti-miR-31 in TNBS-induced colitis were abolished by colonic treatment with IL-25 antibody or colonic down-expression of IL-25. Our findings demonstrated that IL-25 could be a crucial anti-inflammatory cytokine in TNBS-induced colitis and the signaling of miR-31 targeting IL-25 might be a possible mechanism that regulates IL-12/23-mediated Th1/Th17 inflammatory responses during colonic inflammation process. Restoring colonic IL-25 expression and blocking Th1/Th17 responses via intracolonic administration of miR-31 inhibitor may represent a promising approach for CD treatment.
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Affiliation(s)
- T Shi
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, Jiangsu, China
| | - Y Xie
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, Jiangsu, China
| | - Y Fu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, Jiangsu, China
| | - Q Zhou
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, Jiangsu, China
| | - Z Ma
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, Jiangsu, China
| | - J Ma
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, Jiangsu, China
| | - Z Huang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, Jiangsu, China
| | - J Zhang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, Jiangsu, China.,State Key Laboratory of Analytical Chemistry for Life Sciences and Collaborative Innovation Center of Chemistry for Life Sciences, Nanjing University, Nanjing, Jiangsu, China
| | - J Chen
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, Jiangsu, China.,State Key Laboratory of Analytical Chemistry for Life Sciences and Collaborative Innovation Center of Chemistry for Life Sciences, Nanjing University, Nanjing, Jiangsu, China
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Wang YW, Liu GZ, Zhou XT, Sheng PJ, Cui FF, Shi T. [Mediating effect of mental elasticity on occupational stress and depression in female nurses]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2017; 35:436-439. [PMID: 28780820 DOI: 10.3760/cma.j.issn.1001-9391.2017.06.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the interaction between mental elasticityand occupational stress and depressionin female nurses and the mediating effect of mental elasticity, as well as the functioning way of mental elasticity in occupational stress-depression. Methods: From August to October, 2015, cluster sampling was used to select 122 female nurses in a county-level medical institution as study subjects. The Connor-Davidson Resilience Scale (CD-RISC) , Occupational Stress Inventory-Revised Edition (OSI-R) , and Self-Rating Depression Scale (SDS) were used to collect the data on mental elasticity, occupational stress, and depression and analyze their correlation and mediating effect. Results: The 122 female nurses had a mean mental elasticity score of 62.4±15.1, which was significantly lower than the Chinese norm (65.4±13.9) (P<0.05) ; the mean depression score was 41.0±7.7, which was significantly higher than the Chinese norm (33.5±8.6) (P<0.01) , and the incidence rate of depression of 52.5%. Mental elasticity was negatively correlated with occupational stress and depression (r=-0.559 and -0.559, both P<0.01) . Occupational stress and the two subscales mental stress reaction and physical stress reaction were positively correlated with depression (r=0.774, 0.734, and 0.725, all P<0.01) . After adjustment for confounding factors, occupational stress had a positive predictive effect on depression (β=0.744, P<0.01) , and mental elasticity had a negative predictive effect on depression (β=-0.221, P<0.01) . The analysis of mediating effect showed a significant direct effect of occupational stress on depression and a significant mediating effect of mental elasticity (a=-0.527, b=-0.227, c=0.744, c'=0.627; all P<0.01) , and the mediating effect of mental elasticity accounted for 16.08% of the total effect. Conclusion: As a partial mediating variable, mental elasticity has an indirect effect on the relationship between occupational stress and depression and can alleviate the adverse effect of occupational stress and reduce the development of depression.
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Affiliation(s)
- Y W Wang
- West China School of Public Health, Sichuan University, Chengdu 610041, China
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Du Q, Liu X, Shi T, Long J, Ma W, Huang G, Zhang X. Clinical significance of group B streptococcus testing in late pregnancy. CLIN EXP OBSTET GYN 2016. [DOI: 10.12891/ceog3123.2016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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26
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Sun Y, Liang Y, Liu YQ, Gu S, Yang X, Guo W, Shi T, Jia M, Wang L, Lyu B, Zhou C, Liu A, Zang Q, Liu H, Chu N, Wang HH, Zhang T, Qian J, Xu L, He K, Chen D, Shen B, Gong X, Ji X, Wang S, Qi M, Song Y, Yuan Q, Sheng Z, Gao G, Fu P, Wan B. Nonlinear Transition from Mitigation to Suppression of the Edge Localized Mode with Resonant Magnetic Perturbations in the EAST Tokamak. Phys Rev Lett 2016; 117:115001. [PMID: 27661697 DOI: 10.1103/physrevlett.117.115001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Indexed: 06/06/2023]
Abstract
Evidence of a nonlinear transition from mitigation to suppression of the edge localized mode (ELM) by using resonant magnetic perturbations (RMPs) in the EAST tokamak is presented. This is the first demonstration of ELM suppression with RMPs in slowly rotating plasmas with dominant radio-frequency wave heating. Changes of edge magnetic topology after the transition are indicated by a gradual phase shift in the plasma response field from a linear magneto hydro dynamics modeling result to a vacuum one and a sudden increase of three-dimensional particle flux to the divertor. The transition threshold depends on the spectrum of RMPs and plasma rotation as well as perturbation amplitude. This means that edge topological changes resulting from nonlinear plasma response plays a key role in the suppression of ELM with RMPs.
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Affiliation(s)
- Y Sun
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - Y Liang
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
- Institute for Energy and Climate Research-Plasma Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Y Q Liu
- CCFE Culham Science Centre, Abingdon, OX14 3DB, United Kingdom
| | - S Gu
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - X Yang
- School of Physics and Optoelectronic Engineering, Dalian University of Technology, Dalian 116024, China
| | - W Guo
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - T Shi
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - M Jia
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - L Wang
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - B Lyu
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - C Zhou
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - A Liu
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - Q Zang
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - H Liu
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - N Chu
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - H H Wang
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - T Zhang
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - J Qian
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - L Xu
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - K He
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - D Chen
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - B Shen
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - X Gong
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - X Ji
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - S Wang
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - M Qi
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - Y Song
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - Q Yuan
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - Z Sheng
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - G Gao
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - P Fu
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - B Wan
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
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Dong L, Chen L, Shi T, Wei M, Zhang H, Li Y, She L, Yan Z. Combined monitoring of intracranial pressure and bispectral index in patients with severe craniocerebral trauma post-operatively. Clin Neurol Neurosurg 2016; 148:42-4. [DOI: 10.1016/j.clineuro.2016.06.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 06/01/2016] [Accepted: 06/05/2016] [Indexed: 10/21/2022]
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Beyer A, Maisenbacher L, Matveev A, Pohl R, Khabarova K, Chang Y, Grinin A, Lamour T, Shi T, Yost DC, Udem T, Hänsch TW, Kolachevsky N. Active fiber-based retroreflector providing phase-retracing anti-parallel laser beams for precision spectroscopy. Opt Express 2016; 24:17470-17485. [PMID: 27464193 DOI: 10.1364/oe.24.017470] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We present an active fiber-based retroreflector providing high quality phase-retracing anti-parallel Gaussian laser beams for precision spectroscopy of Doppler sensitive transitions. Our design is well-suited for a number of applications where implementing optical cavities is technically challenging and corner cubes fail to match the demanded requirements, most importantly retracing wavefronts and preservation of the laser polarization. To illustrate the performance of the system, we use it for spectroscopy of the 2S-4P transition in atomic hydrogen and demonstrate an average suppression of the first order Doppler shift to 4 parts in 106 of the full collinear shift. This high degree of cancellation combined with our cryogenic source of hydrogen atoms in the metastable 2S state is sufficient to enable determinations of the Rydberg constant and the proton charge radius with competitive uncertainties. Advantages over the usual Doppler cancellation based on corner cube type retroreflectors are discussed as well as an alternative method using a high finesse cavity.
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Liu Y, Zhai M, Guo F, Shi T, Liu J, Wang X, Zhang X, Jing D, Hai C. Whole Body Vibration Improves Insulin Resistance in db/db Mice: Amelioration of Lipid Accumulation and Oxidative Stress. Appl Biochem Biotechnol 2016; 179:819-29. [PMID: 26945578 DOI: 10.1007/s12010-016-2033-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Accepted: 02/25/2016] [Indexed: 12/28/2022]
Abstract
Insulin resistance (IR) is the hallmark of type 2 diabetes mellitus (T2DM), which is one of the most important chronic noncommunicable diseases. Effective and feasible strategies to treat IR are still urgently needed. Previous research studies reported that whole body vibration (WBV) was beneficial for IR in clinical; however, its underlying mechanisms remains unknown. In the present study, db/db mice were treated with WBV administration 60 min/day for 12 weeks and the impaired insulin sensitivity was improved. Besides, liver steatosis was also ameliorated. Further explorations revealed that WBV could reduce the expression of SREBP1c and increase the expression of GSH-Px and consequently suppress oxidative stress. In conclusion, WBV attenuates oxidative stress to ameliorate liver steatosis and thus improves insulin resistance in db/db mice. Therefore, WBV administration is a promising treatment for individuals who suffered from central obesity and IR.
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Affiliation(s)
- Ying Liu
- Department of Toxicology, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Shanxi Provincial Key Lab of Free Radical Biology and Medicine, School of Public Health, The Fourth Military Medical University, Xi'an, 710032, Shaanxi, People's Republic of China
| | - Mingming Zhai
- Department of Biomedical Engineering, The Fourth Military Medical University, Xi'an, 710032, People's Republic of China
| | - Fan Guo
- Department of Radiology, Xijing Hospital, The Fourth Military Medical University, Xi'an, 710032, People's Republic of China
| | - Tengrui Shi
- Department of Toxicology, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Shanxi Provincial Key Lab of Free Radical Biology and Medicine, School of Public Health, The Fourth Military Medical University, Xi'an, 710032, Shaanxi, People's Republic of China
| | - Jiangzheng Liu
- Department of Toxicology, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Shanxi Provincial Key Lab of Free Radical Biology and Medicine, School of Public Health, The Fourth Military Medical University, Xi'an, 710032, Shaanxi, People's Republic of China
| | - Xin Wang
- Department of Toxicology, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Shanxi Provincial Key Lab of Free Radical Biology and Medicine, School of Public Health, The Fourth Military Medical University, Xi'an, 710032, Shaanxi, People's Republic of China
| | - Xiaodi Zhang
- Department of Toxicology, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Shanxi Provincial Key Lab of Free Radical Biology and Medicine, School of Public Health, The Fourth Military Medical University, Xi'an, 710032, Shaanxi, People's Republic of China
| | - Da Jing
- Department of Biomedical Engineering, The Fourth Military Medical University, Xi'an, 710032, People's Republic of China.
| | - Chunxu Hai
- Department of Toxicology, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Shanxi Provincial Key Lab of Free Radical Biology and Medicine, School of Public Health, The Fourth Military Medical University, Xi'an, 710032, Shaanxi, People's Republic of China.
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Li XM, Sun SZ, Wu FL, Shi T, Fan HJ, Li DZ. Study on JNK/AP-1 signaling pathway of airway mucus hypersecretion of severe pneumonia under RSV infection. Eur Rev Med Pharmacol Sci 2016; 20:853-857. [PMID: 27010141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To investigate the JNK/AP-1 signaling pathway of airway mucus hypersecretion of severe pneumonia under respiratory virus (RSV) infection. PATIENTS AND METHODS Total of 56 severe pneumonia children under RSV infection were selected. Reverse transcription polymerase chain reaction (RT-PCR) was performed to measure the expression quantity of MUC5B mRNA and MUC5AC mRNA, and ELISA was used to measure the expression quantity of MUC5AC and MUC5B proteins. Following that, the children were divided into airway mucus hypersecretion group (n = 37) and non-hypersecretion group (n = 19). Western blotting was performed to detect the expression levels of JNK1/2, p-JNK1/2 and AP-1 proteins. RESULTS Expression of MUC5AC and MUC5B proteins, and MUC5AC mRNA and MUC5B mRNA in the airway mucus hypersecretion group were significantly higher than those in the non-hypersecretion group (p < 0.05). The expression levels of JNK1/2, p-JNK1/2 and AP-1 proteins in airway mucus hypersecretion group were higher than those in the non-hypersecretion group (p < 0.05). CONCLUSIONS MUC5AC and MUC5B can be used as marker molecules of airway mucus hypersecretion. Airway mucus hypersecretion of severe pneumonia induced by RSV might be related to the activation of JNK/AP-1 signaling pathway.
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Affiliation(s)
- X-M Li
- Department of Pediatrics, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China.
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Du Q, Liu X, Shi T, Long J, Ma W, Huang G, Zhang X. Clinical significance of group B streptococcus testing in late pregnancy. CLIN EXP OBSTET GYN 2016; 43:703-707. [PMID: 30074322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
PURPOSE This study aimed to detect the maternal group B streptococcus (GBS) by real-time PCR method, aiming to understand its germ-carrying situations and clinical significance. MATERIALS AND METHODS The secretions of one-third inferior segment of maternal vagina of 1,540 pregnant and postnatal women were collected for GBS detection by real-time PCR method, and the impacts of positive results on the fetus were observed. RESULTS The detection rate of GBS was 5.6% (86/1540); the premature birth rate of GBS-positive pregnant women was 29.1% (25/86), the miscarriage rate was 19.8% (17/86), the premature rupture rate was 26.7% (23/86), and the fetal distress rate was 24.4% (21/86). CONCLUSIONS The GBS germ-carriers showed increased rates of premature birth, miscarriage, premature rupture, and fetal distress, thus forming adverse effects towards the maternal and infant outcomes.
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Zhang H, Wang M, Shi T, Shen L, Zhu J, Sun M, Deng Y, Liang L, Li G, Wu Y, Fan M, Wei Q, Zhang Z. Associations of Genetic Polymorphisms of PAI-1 and PAR-1 With Acute Normal Tissue Toxicity in Rectal Cancer Patients Treated With Pelvic Radiation Therapy. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Zhang H, Wang M, Shi T, Shen L, Liang L, Deng Y, Li G, Zhu J, Wu Y, Wei Q, Fan M, Zhang Z. TNF rs1799964 as a Predictive Factor of Acute Toxicities in Chinese Rectal Cancer Patient Treated With Chemoradiation Therapy. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Garcia-Manero G, Gore SD, Kambhampati S, Scott B, Tefferi A, Cogle CR, Edenfield WJ, Hetzer J, Kumar K, Laille E, Shi T, MacBeth KJ, Skikne B. Efficacy and safety of extended dosing schedules of CC-486 (oral azacitidine) in patients with lower-risk myelodysplastic syndromes. Leukemia 2015; 30:889-96. [PMID: 26442612 PMCID: PMC4832070 DOI: 10.1038/leu.2015.265] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 09/02/2015] [Accepted: 09/16/2015] [Indexed: 11/18/2022]
Abstract
CC-486, the oral formulation of azacitidine (AZA), is an epigenetic modifier and DNA methyltransferase inhibitor in clinical development for treatment of hematologic malignancies. CC-486 administered for 7 days per 28-day treatment cycle was evaluated in a phase 1 dose-finding study. AZA has a short plasma half-life and DNA incorporation is S-phase-restricted; extending CC-486 exposure may increase the number of AZA-affected diseased target cells and maximize therapeutic effects. Patients with lower-risk myelodysplastic syndromes (MDS) received 300 mg CC-486 once daily for 14 days (n=28) or 21 days (n=27) of repeated 28-day cycles. Median patient age was 72 years (range 31–87) and 75% of patients had International Prognostic Scoring System Intermediate-1 risk MDS. Median number of CC-486 treatment cycles was 7 (range 2–24) for the 14-day dosing schedule and 6 (1–24) for the 21-day schedule. Overall response (complete or partial remission, red blood cell (RBC) or platelet transfusion independence (TI), or hematologic improvement) (International Working Group 2006) was attained by 36% of patients receiving 14-day dosing and 41% receiving 21-day dosing. RBC TI rates were similar with both dosing schedules (31% and 38%, respectively). CC-486 was generally well-tolerated. Extended dosing schedules of oral CC-486 may provide effective long-term treatment for patients with lower-risk MDS.
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Affiliation(s)
- G Garcia-Manero
- Department of Leukemia, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - S D Gore
- Yale Cancer Center, New Haven, CT, USA
| | - S Kambhampati
- Division of Hematology/Oncology, Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS, USA
| | - B Scott
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - A Tefferi
- Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - C R Cogle
- Medicine/Hematology & Oncology, University of Florida, Gainesville, FL, USA
| | - W J Edenfield
- Cancer Centers of The Carolinas, Greenville, SC, USA
| | - J Hetzer
- Celgene Corporation, Summit, NJ, USA
| | - K Kumar
- Celgene Corporation, Summit, NJ, USA
| | - E Laille
- Celgene Corporation, Summit, NJ, USA
| | - T Shi
- Celgene Corporation, Summit, NJ, USA
| | | | - B Skikne
- Celgene Corporation, Summit, NJ, USA
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Li BX, Shi T, Liu XB, Lin CH, Huang GX. First Report of Rubber Tree Stem Rot Caused by Fusarium oxysporum in China. Plant Dis 2014; 98:1008. [PMID: 30708897 DOI: 10.1094/pdis-01-14-0004-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Rubber tree (Hevea brasiliensis) is an important crop in tropical regions of China. In October 2013, a new stem rot disease was found on cv. Yunyan77-4 at a rubber tree plantation in Hekou, Yunnan Province. There were about 100 plants, and diseased rubber trees accounted for 30% or less. Initially, brown-punctuate secretion appeared on the stem, which was 5 to 6 cm above the ground. Eventually, the secretion became black and no latex produced from the rubber tree bark. After removing the secretion, the diseased bark was brown putrescence, but the circumambient bark was normal. Upon peeling the surface bark, the inner bark and xylem had brown rot and was musty. The junction between health and disease was undulate. On the two most serious plants, parts of leaves on the crown were yellow, and the root near the diseased stem was dry and puce. The pathogen was isolated and designated HbFO01; the pathogenicity was established by following Koch's postulates. The pathogen was cultivated on a potato dextrose agar (PDA) plate at 28°C for 4 days. Ten plants of rubber tree cv. Yunyan77-4 were selected from a disease-free plantation in Haikou, Hainan Province, and the stem diameter was about 7 cm. The bark of five plants was peeled, and one mycelium disk with a diameter of 1 cm was inserted into the cut and covered again with the bark. The other five plants were treated with agar disks as controls. The inoculation site was kept moist for 2 days, and then the mycelium and agar disk were removed. On eighth day, symptoms similar to the original stem lesions were observed on stems of inoculated plants, while only scars formed on stems of control plants. The pathogen was re-isolated from the lesions of inoculated plants. On PDA plates, the pathogen colony was circular and white with tidy edges and rich aerial hyphae. Microscopic examination showed microconidia and chlamydospores were produced abundantly on PDA medium. The falciform macroconidia were only produced on lesions and were slightly curved, with a curved apical cell and foot shaped to pointed basal cell, usually 3-septate, 16.2 to 24.2 × 3.2 to 4.0 μm. Microconidia were produced in false heads, oval, 0-septate, 6.2 to 8.2 × 3.3 to 3.8 μm, and the phialide was cylindrical. Chlamydospores were oval, 6.4 to 7.2 × 3.1 to 3.8 μm, alone produced in hypha. Morphological characteristics of the specimen were similar to the descriptions for Fusarium oxysporum (2). Genomic DNA of this isolate was extracted with a CTAB protocol (4) from mycelium and used as a template for amplification of the internal transcribed spacer (ITS) region of rDNA with primer pair ITS1/ITS4 (1). The full length of this sequence is 503 nt (GenBank Accession No. KJ009335), which exactly matched several sequences (e.g., JF807394.1, JX897002.1, and HQ451888.1) of F. oxysporum. Williams and Liu had listed F. oxysporum as the economically important pathogen of Hevea in Asia (3), while this is, to our knowledge, the first report of stem rot caused by F. oxysporum on rubber tree in China. References: (1) D. E. L. Cooke et al. Fungal Genet. Biol. 30:17, 2000. (2) J. F. Leslie and B. A. Summerell. The Fusarium Laboratory Manual, 2006. (3) T. H. Williams and P. S. W. Liu. A host list of plant diseases in Sabah, Malaysia, 1976. (4) J. R. Xu et al. Genetics 143:175, 1996.
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Affiliation(s)
- B-X Li
- Environment and Plant Protection Institute, CATAS, Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture, Hainan Key Laboratory for Monitoring and Control of Tropical Agricultural Pests, Haikou, Hainan 571101, P. R. China
| | - T Shi
- Environment and Plant Protection Institute, CATAS, Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture, Hainan Key Laboratory for Monitoring and Control of Tropical Agricultural Pests, Haikou, Hainan 571101, P. R. China
| | - X-B Liu
- Environment and Plant Protection Institute, CATAS, Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture, Hainan Key Laboratory for Monitoring and Control of Tropical Agricultural Pests, Haikou, Hainan 571101, P. R. China
| | - C-H Lin
- Environment and Plant Protection Institute, CATAS, Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture, Hainan Key Laboratory for Monitoring and Control of Tropical Agricultural Pests, Haikou, Hainan 571101, P. R. China
| | - G-X Huang
- Environment and Plant Protection Institute, CATAS, Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture, Hainan Key Laboratory for Monitoring and Control of Tropical Agricultural Pests, Haikou, Hainan 571101, P. R. China
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Li H, Zheng T, Chen B, Hong G, Zhang W, Shi T, Li S, Ao L, Wang C, Guo Z. Similar blood-borne DNA methylation alterations in cancer and inflammatory diseases determined by subpopulation shifts in peripheral leukocytes. Br J Cancer 2014; 111:525-31. [PMID: 24960404 PMCID: PMC4119994 DOI: 10.1038/bjc.2014.347] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Revised: 04/12/2014] [Accepted: 05/15/2014] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Although many DNA methylation (DNAm) alterations observed in peripheral whole blood/leukocytes and serum have been considered as potential diagnostic markers for cancer, their origin and their specificity for cancer (e.g., vs inflammatory diseases) remain unclear. METHODS From publicly available datasets, we identified changes in the methylation of blood-borne DNA for multiple cancers and inflammatory diseases. We compared the identified changes with DNAm difference between myeloid and lymphoid cells extracted from two datasets. RESULTS At least 94.7% of the differentially methylated DNA loci (DM loci) observed in peripheral whole blood/leukocytes and serum of cancer patients overlapped with DM loci that distinguish between myeloid and lymphoid cells and >99.9% of the overlapped DM loci had consistent alteration states (hyper- or hypomethylation) in cancer samples compared to normal controls with those in myeloid cells compared to lymphoid cells (binomial test, P-value <2.2 × 10(-16)). Similar results were observed for DM loci in peripheral whole blood/leukocytes in patients with rheumatoid arthritis or inflammatory bowel diseases. The direct comparison between DM loci observed in the peripheral whole blood/leukocytes of patients with inflammatory diseases and DM loci observed in the peripheral whole blood of patients with cancer showed that DM loci detected from cancer and inflammatory diseases also had significantly consistent alteration states (binomial test, P-value <2.2 × 10(-16)). CONCLUSIONS DNAm changes observed in the peripheral whole blood/leukocytes and serum of cancer patients and in the peripheral whole blood/leukocytes of inflammatory disease patients are predominantly determined by the increase of myeloid cells and the decrease of lymphoid cells under the disease conditions, in the sense that their alteration states in disease samples compared to normal controls mainly reflect the DNAm difference between myeloid and lymphoid cells. These analyses highlight the importance of comparing cancer and inflammatory disease directly for the identification of cancer-specific diagnostic biomarkers.
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Affiliation(s)
- H Li
- Bioinformatics Centre, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - T Zheng
- Bioinformatics Centre, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - B Chen
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin 150086, China
| | - G Hong
- Bioinformatics Centre, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - W Zhang
- Bioinformatics Centre, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - T Shi
- Bioinformatics Centre, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - S Li
- Bioinformatics Centre, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - L Ao
- 1] College of Bioinformatics Science and Technology, Harbin Medical University, Harbin 150086, China [2] Department of Bioinformatics, School of Basic Medical College, Fujian Medical University, Fuzhou 350004, China
| | - C Wang
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin 150086, China
| | - Z Guo
- 1] Bioinformatics Centre, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, China [2] College of Bioinformatics Science and Technology, Harbin Medical University, Harbin 150086, China [3] Department of Bioinformatics, School of Basic Medical College, Fujian Medical University, Fuzhou 350004, China
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Wang X, Yang H, Zhang H, Shi T, Ren W. Transvaginal sonographic features of perineal masses in the female lower urogenital tract: a retrospective study of 71 patients. Ultrasound Obstet Gynecol 2014; 43:702-710. [PMID: 24254259 DOI: 10.1002/uog.13251] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2013] [Revised: 10/11/2013] [Accepted: 10/15/2013] [Indexed: 06/02/2023]
Abstract
OBJECTIVES To assess the transvaginal ultrasonographic features of perineal masses in the lower urogenital tract in a cohort of 71 women. METHODS Seventy-one women with perineal masses were referred consecutively for transvaginal ultrasonography. Two-dimensional (2D) ultrasound was used to scan the pelvic floor, including the urethra, vagina and rectum, and identify any possible areas of interest. A static three-dimensional (3D) sonographic reconstruction of the pelvic anatomy was created to further delineate the relation of the lesions with their neighboring structures. Ultrasound results were compared retrospectively with surgical pathology outcome when possible. RESULTS Seventy-nine cystic, cystic-solid or solid masses were detected on transvaginal 2D ultrasonography in the 71 women: in 44 patients, 47 anechoic cystic masses were identified and diagnosed as vaginal wall cysts; in 19 patients, 23 hyperechoic cystic masses were diagnosed as vaginal epidermoid cysts; in each of two patients, a hypoechoic cystic-solid mass showing blood-flow signals on color Doppler imaging was diagnosed as urogenital angiomyofibroblastoma; in each of three patients, a hypoechoic cyst was diagnosed as urethral diverticulum; and in three patients with a known history of gynecological malignancy, solid heterogeneous masses with blood flow signals on color Doppler imaging were diagnosed as metastatic cancer. In all patients, 3D ultrasonography delineated the anatomical relationship of these masses to the vagina, urethra and rectum. CONCLUSIONS Transvaginal 2D and 3D ultrasonography is an accurate, non-invasive, cost-effective diagnostic modality for the delineation of congenital, septic and neoplastic lower urogenital tract perineal masses in women.
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Affiliation(s)
- X Wang
- Department of Ultrasound Medicine, Shengjing Hospital affiliated to China Medical University, Shenyang, China
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Wang M, Zhu M, He J, Shi T, Li Q, Wei Q. P0217 Potentially functional polymorphisms in the mTOR gene and gastric adenocarcinoma susceptibility in an eastern Chinese population. Eur J Cancer 2014. [DOI: 10.1016/j.ejca.2014.03.261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Abstract
Cassava brown leaf spot surveys were conducted in the main cassava plantation areas of China between 2007 and 2012 in order to understand the distribution of the disease. Cassava plants were damaged by the disease to different degrees in most of the survey sites. Samples were collected and seven strains were isolated from lesions. The mycelium-breaking plus black light induction method was applied for sporulation. Microconidia were formed by means of fragmentation on artificial medium plates. When the leaf was stabbed and inoculated with conidia solution, similar symptoms were formed 14 days later. Morphological characteristics of the specimens and conidia were similar to descriptions of Passalora henningsii infection. The internal transcribed spacer (ITS) regions of rDNA were obtained with primer pair ITS1/ITS4 and deposited in GenBank, which differed by three base pairs from that of the P. henningsii isolate (AF284389). The ITS sequences of related species were downloaded from the NCBI database, and phylogenetic analysis showed that the sequences originating from our strains clustered in the same clade as the AF284389 isolate. Biological characteristics were evaluated in two strains from different sites, which indicated that the optimum conditions for mycelia growth were a temperature of 26° to 28°C, carrot agar medium, pH 6, and continuous dark; cassava leaf juice added to malt extract and cassava leaf juice added to potato dextrose agar were the best media for conidia production. The optimal and lethal temperatures for macroconidia germination were 26° to 28°C, and 60°C for 10 min, respectively.
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Affiliation(s)
- Y L Pei
- Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture, Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, China
| | - T Shi
- Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture, Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, China
| | - C P Li
- Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture, Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, China
| | - X B Liu
- Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture, Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, China
| | - J M Cai
- Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture, Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, China
| | - G X Huang
- Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture, Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, China
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Zhao D, Shi T, Chen C, Si Z, Duan Q, Shi L. Novel 1D Mn(II) complexes containing aromatic dicarboxylic acids. RUSS J COORD CHEM+ 2014. [DOI: 10.1134/s1070328414030117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Meng ZW, Zhang YJ, Li W, Shi T, Wu SG, Tan J. Relapse of hyperthyroidism after hemithyroidectomy in concurrent medullary thyroid cancer and Graves' disease. BRATISL MED J 2013; 114:544-6. [PMID: 24020714 DOI: 10.4149/bll_2013_114] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
We present a rare case of concurrent medullary thyroid cancer (MTC) and relapse of Graves' disease (GD). A 26-year-old Chinese female suffered from GD for 1 year. Physical examination demonstrated mildly diffuse goiter with a palpable 1.0 cm nodule in the right thyroid lobe and exophthalmos. Before hemithyroidectomy, calcitonin was elevated and thyroglobulin was normal. After surgery, histopathological findings proved coexistence of MTC and GD. 16 months later, GD relapsed and radioactive iodine 131 therapy was given. Meanwhile, postoperative monitoring showed well controlled calcitonin and carcinoembryonic antigen. Our lesson demonstrates although concomitant of MTC and GD is very rare, yet after hemithyroidectomy for the single nodular MTC lesion, remnant thyroid lobe could be the source of GD relapse very soon. More importantly, the relapse of GD and the following radioiodine therapy and radiation exposure could have been prevented if a better therapy plan of total thyroidectomy was adopted in the first place, instead of hemithyroidectomy (Tab. 1, Fig. 2, Ref. 11).
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Shi X, Zhao Y, Jiao Y, Shi T, Yang X. ROS-dependent mitochondria molecular mechanisms underlying antitumor activity of Pleurotus abalonus acidic polysaccharides in human breast cancer MCF-7 cells. PLoS One 2013; 8:e64266. [PMID: 23691187 PMCID: PMC3653930 DOI: 10.1371/journal.pone.0064266] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2013] [Accepted: 04/08/2013] [Indexed: 12/29/2022] Open
Abstract
Background A greater reduction in cancer risk associated with mushroom diet rich in fungus polysaccharides is generally accepted. Meanwhile, edible Pleurotus abalonus as a member of Abalone mushroom family is a popular nutritional supplement that purportedly prevents cancer occurrence. However, these anecdotal claims are supported by limited studies describing tumor-inhibitory responses to the promising polysaccharides, and the molecular mechanisms underlying these properties have not yet been elucidated. Methodology/Principal Findings We here fractionated the crude polysaccharide preparation from the fruiting bodies of P. abalonus into three fractions, namely PAP-1, PAP-2 and PAP-3, and tested these fractions for antiproliferative activity in human breast cancer MCF-7 cells. The largest PAP-3, an acidic polysaccharide fraction with a molecular mass of 3.68×105 Da, was the most active in inhibiting MCF-7 cancer cells with an IC50 of 193 µg/mL. The changes in cell normal morphology were observed by DAPI staining and the PAP-3-induced apoptosis was confirmed by annexin V/propidium iodide staining. The apoptosis was involved in mitochondria-mediated pathway including the loss of mitochondrial membrane potential (Δψm), the increase of Bax/Bcl-2 ratio, caspase-9/3 activation, and poly(ADP-ribose) polymerase (PARP) degradation, as well as intracellular ROS production. PAP-3 also induced up-regulation of p53, and cell cycle arrest at the S phase. The incubation of MCF-7 cells with antioxidant superoxide dismutase (SOD) and N-acetylcysteine (NAC) significantly attenuated the ROS generation and apoptosis caused by PAP-3, indicating that intracellular ROS plays a pivotal role in cell death. Conclusions/Significance These findings suggest that the polysaccharides, especially acidic PAP-3, are very important nutritional ingredients responsible for, at least in part, the anticancer health benefits of P. abalonus via ROS-mediated mitochondrial apoptotic pathway. It is a major breakthrough bringing new insight of the potential use of the polysaccharides as health-care food or medicine to provide significant natural defense against human cancer.
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Affiliation(s)
- Xiaolong Shi
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education, and National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi’an, China
| | - Yan Zhao
- School of Pharmacy, Fourth Military Medical University, Xi’an, China
| | - Yadong Jiao
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education, and National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi’an, China
| | - Tengrui Shi
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education, and National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi’an, China
| | - Xingbin Yang
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education, and National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi’an, China
- * E-mail:
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Shi T, Yang L, Yang G, Tu X, Wu X, Cheng X, Wei Q. AOSP24 DNA POLYMERASE ζ AS A POTENTIAL BIOMARKER OF CHEMORADIATION RESISTANCE AND POOR PROGNOSIS FOR CERVICAL CANCER. Eur J Cancer 2013. [DOI: 10.1016/s0959-8049(13)70035-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Wang M, Zhu M, He J, Shi T, Li Q, Wei Q. AOSOP6 POTENTIALLY FUNCTIONAL POLYMORPHISMS IN THE CASP7 GENE CONTRIBUTE TO GASTRIC ADENOCARCINOMA SUSCEPTIBILITY IN AN EASTERN CHINESE POPULATION. Eur J Cancer 2013. [DOI: 10.1016/s0959-8049(13)70006-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Abstract
The superfluid phases in resonant dipolar Fermi gases are investigated by the standard mean-field theory. In contrast to the crossover from Bose-Einstein condensation (BEC) to Bardeen-Cooper-Schrieffer superfluid in Fermi gases with isotropic interactions, resonant dipolar interaction leads to two completely different BEC phases of the tight-binding Fermi molecules on both sides of the resonance, which are characterized by two order parameters with distinct internal symmetries. We point out that, near the resonances, the two competitive phases can coexist, and an emergent relative phase between the two order parameters spontaneously breaks time-reversal symmetry, which could be observed in momentum resolved rf spectroscopy.
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Affiliation(s)
- T Shi
- State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, P.O. Box 2735, Beijing 100190, China and Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, 85748 Garching, Germany
| | - S-H Zou
- State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, P.O. Box 2735, Beijing 100190, China
| | - H Hu
- ARC Centre of Excellence for Quantum-Atom Optics, Centre for Atom Optics and Ultrafast Spectroscopy, Swinburne University of Technology, Melbourne 3122, Australia
| | - C-P Sun
- State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, P.O. Box 2735, Beijing 100190, China and Beijing Computational Science Research Center, Beijing 100084, China
| | - S Yi
- State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, P.O. Box 2735, Beijing 100190, China
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Liu Y, Li Z, Yi Z, Shi T. 2640 – Exploring the pathogenetic association between schizophrenia and type 2 diabetes mellitus diseases based on pathway analysis. Eur Psychiatry 2013. [DOI: 10.1016/s0924-9338(13)77273-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Zhuang WB, Shi T, Gao ZH, Zhang Z, Zhang JY. Differential expression of proteins associated with seasonal bud dormancy at four critical stages in Japanese apricot. Plant Biol (Stuttg) 2013; 15:233-42. [PMID: 22672637 DOI: 10.1111/j.1438-8677.2012.00589.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Dormancy is of great significance in the growth and development of deciduous fruit trees. We used a combination of two-dimensional gel electrophoresis (2-DE) and matrix-assisted laser desorption/ionisation time of flight/time of flight mass spectrometry (MALDI-TOF/TOF MS) to identify the differentially expressed proteome of Japanese apricot flower buds at four critical stages, from paradormancy before leaf fall to dormancy release. More than 400 highly reproducible protein spots (P < 0.05) were detected: 34 protein spots showed a greater than twofold difference in expression values, of which 32 protein spots were confidently identified from databases. Identified proteins were classified into six functional categories: stress response and defence (11), energy metabolism (ten), protein metabolism (five), cell structure (three), transcription (one) and unclassified (two). The glyoxalase I homologue could help Japanese apricot survival under various abiotic and biotic stresses, greatly contributing to its dormancy. Enolase, thioredoxin family proteins and triose phosphate isomerase provide adequate energy to complete consecutive dormancy release and bud break in Japanese apricot. Cinnamyl alcohol dehydrogenase 9 and arginase enhance the resilience of plants, enabling them to complete dormancy safely. Analysis of functions of identified proteins and related metabolic pathways will increase our knowledge of dormancy in woody plants.
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Affiliation(s)
- W-B Zhuang
- College of Horticulture, Nanjing Agricultural University, Nanjing, China
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Abstract
Cassava (Manihot esculenta) is an economically important crop grown widely in South China. Seventy percent of the cassava grown is used for starch and ethanol production and it has become the foundation of local food and bioenergy systems. In November 2010, a new root rot disease was found on cv. HuaNan205 from a cassava plantation in Danzhou, Hainan Province. Disease occurred on 30% or less of the plants. Initially, the upper leaves wilted at noon and recovered in the evening. Eventually, infected plants no longer recovered and the whole plant wilted and died. Root rot symptoms consisting of irregular brown patches occurred on the tuberous roots. Symptomatic root rot tissue was cut into 1-cm pieces, washed in distilled water, and soaked in a solution of 1% sodium hypochlorite for 3 min. A subsection was cut from each sterilized piece, placed on a plate of V8 agar medium, and incubated at 28°C for 7 days. Pathogenicity was established by following Koch's postulates. In July 2011, 10 plants of cassava cv. HuaNan205 were selected from a disease-free plantation in Danzhou. The pathogen was cultivated on V8 agar at 28°C for 14 days. Four holes were established 15 cm from the base of the cassava plants. Five plants were inoculated with 100 mL of the mycelial suspension in each of the four spots and covered by soil. The other five plants were treated with sterile water as control. Plants were maintained for 4 months. All five of the inoculated plants wilted and two died, while the control plants grew normally. Symptoms similar to the original root lesions were observed on tuberous roots of inoculated plants, while only scars formed on tuberous roots of control plants. The pathogen was reisolated from the lesions of inoculated plants. Microscopic examination showed the sporangia as papillate and ovoid with the widest part close to the base. They were easily washed off and each detached sporangium contained a short pedicel 1.2 to 6.9 μm long, average 2.9 μm. Chlamydospores were readily observed on diseased roots and observed in pure cultures on V8 agar. Morphological characteristics of the specimen were similar to the descriptions for Phytophthora palmivora (2). Genomic DNA of this isolate was extracted with a cetyltrimethylammoniumbromide protocol (3) from mycelium and used as a template for amplification of the internal transcribed spacer (ITS) region of rDNA with primer pair ITS1/ITS4 (1). The sequence (GenBank Accession No. HE580279) exactly matched several sequences (e.g., GenBank Accession Nos. HQ237481.1, AY745750, and AY745751) of P. palmivora. To our knowledge, this is the first report of root rot caused by P. palmivora on cassava in China. References: (1) D. E. L. Cooke et al. Fungal Genet. Biol. 30:17, 2000. (2) D. C. Erwin and O. K. Ribeiro. Phytophthora Diseases Worldwide. The American Phytopathological Society, St. Paul, MN, 1996. (3) J. R. Xu et al. Genetics 143:175, 1996.
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Affiliation(s)
- H Guo
- Environment and Plant Protection Institute, CATAS, Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture, Hainan Key Laboratory for Monitoring and Control of Tropical Agricultural Pests, Danzhou, Hainan 571737, P. R. China. This work was partly supported by the fund for Modern Agro-Industry Technology Research System (CARS-12-hnhgx) from the Ministry of Agriculture, the People's Republic of China
| | - C-P Li
- Environment and Plant Protection Institute, CATAS, Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture, Hainan Key Laboratory for Monitoring and Control of Tropical Agricultural Pests, Danzhou, Hainan 571737, P. R. China. This work was partly supported by the fund for Modern Agro-Industry Technology Research System (CARS-12-hnhgx) from the Ministry of Agriculture, the People's Republic of China
| | - T Shi
- Environment and Plant Protection Institute, CATAS, Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture, Hainan Key Laboratory for Monitoring and Control of Tropical Agricultural Pests, Danzhou, Hainan 571737, P. R. China. This work was partly supported by the fund for Modern Agro-Industry Technology Research System (CARS-12-hnhgx) from the Ministry of Agriculture, the People's Republic of China
| | - C-J Fan
- Environment and Plant Protection Institute, CATAS, Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture, Hainan Key Laboratory for Monitoring and Control of Tropical Agricultural Pests, Danzhou, Hainan 571737, P. R. China. This work was partly supported by the fund for Modern Agro-Industry Technology Research System (CARS-12-hnhgx) from the Ministry of Agriculture, the People's Republic of China
| | - G-X Huang
- Environment and Plant Protection Institute, CATAS, Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture, Hainan Key Laboratory for Monitoring and Control of Tropical Agricultural Pests, Danzhou, Hainan 571737, P. R. China. This work was partly supported by the fund for Modern Agro-Industry Technology Research System (CARS-12-hnhgx) from the Ministry of Agriculture, the People's Republic of China
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Shi C, Li S, Shi T, Liu B, Ding C, Qin H. Correlation between Thyroid Nodule Calcification Morphology on Ultrasound and Thyroid Carcinoma. J Int Med Res 2012; 40:350-7. [PMID: 22429375 DOI: 10.1177/147323001204000136] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE: This study investigated the detection of thyroid nodule calcifications on ultrasound and their relationship to thyroid carcinoma. METHODS: Microcalcifications (≤ 2 mm) and macrocalcifications (> 2 mm) on preoperative ultrasound examination of thyroid and lymph nodes were compared with postoperative pathological diagnoses in 4186 patients undergoing thyroid surgery. RESULTS: Higher incidences of micro- and macrocalcifications were found in patients with thyroid carcinoma than in those with benign disease. The incidence of malignant disease was significantly higher in patients with microcalcifications than those with macrocalcifications, suggesting that the presence of microcalcifications is a better predictor of malignant thyroid carcinoma than other calcification types. The specificity of microcalcifications for a diagnosis of malignant thyroid carcinoma was 96.5%. Microcalcifications were significantly more frequent in patients aged ≤ 45 years, but there was no difference between genders. The incidence of malignancy was significantly higher in patients with single nodule calcifications than in those with multiple nodule calcifications. Lymph node calcifications were seen in 12 patients, all of whom had papillary carcinoma. CONCLUSIONS: Thyroid microcalcifications are strongly associated with thyroid carcinoma, especially micropapillary carcinoma. When cervical lymph node calcification is present, immediate surgery is required.
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Affiliation(s)
- C Shi
- Fourth Department of Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - S Li
- Fourth Department of Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - T Shi
- Fourth Department of Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - B Liu
- Fourth Department of Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - C Ding
- Fourth Department of Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - H Qin
- Fourth Department of Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
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Yi Z, Li Z, Yu S, Wang L, Yuan C, Hong W, Shi T, Fang Y. O-64 - Blood-based gene expression profiles for classification of subsyndromal symptomatic depression and major depressive disorder. Eur Psychiatry 2012. [DOI: 10.1016/s0924-9338(12)74164-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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