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Acero MA, Adamson P, Aliaga L, Alion T, Allakhverdian V, Altakarli S, Anfimov N, Antoshkin A, Aurisano A, Back A, Backhouse C, Baird M, Balashov N, Baldi P, Bambah BA, Bashar S, Bays K, Bending S, Bernstein R, Bhatnagar V, Bhuyan B, Bian J, Blackburn T, Blair J, Booth AC, Bour P, Bromberg C, Buchanan N, Butkevich A, Calvez S, Campbell M, Carroll TJ, Catano-Mur E, Cedeno A, Childress S, Choudhary BC, Chowdhury B, Coan TE, Colo M, Cooper J, Corwin L, Cremonesi L, Davies GS, Derwent PF, Ding P, Djurcic Z, Doyle D, Dukes EC, Duyang H, Edayath S, Ehrlich R, Elkins M, Feldman GJ, Filip P, Flanagan W, Frank MJ, Gallagher HR, Gandrajula R, Gao F, Germani S, Giri A, Gomes RA, Goodman MC, Grichine V, Groh M, Group R, Guo B, Habig A, Hakl F, Hartnell J, Hatcher R, Hatzikoutelis A, Heller K, Hewes J, Himmel A, Holin A, Howard B, Huang J, Hylen J, Jediny F, Johnson C, Judah M, Kakorin I, Kalra D, Kaplan DM, Keloth R, Klimov O, Koerner LW, Kolupaeva L, Kotelnikov S, Kourbanis I, Kreymer A, Kulenberg C, Kumar A, Kuruppu CD, Kus V, Lackey T, Lang K, Lin S, Lokajicek M, Lozier J, Luchuk S, Maan K, Magill S, Mann WA, Marshak ML, Martinez-Casales M, Matveev V, Méndez DP, Messier MD, Meyer H, Miao T, Miller WH, Mishra SR, Mislivec A, Mohanta R, Moren A, Mualem L, Muether M, Mufson S, Mulder K, Murphy R, Musser J, Naples D, Nayak N, Nelson JK, Nichol R, Nikseresht G, Niner E, Norman A, Nosek T, Olshevskiy A, Olson T, Paley J, Patterson RB, Pawloski G, Pershey D, Petrova O, Petti R, Phan DD, Plunkett RK, Potukuchi B, Principato C, Psihas F, Radovic A, Raj V, Rameika RA, Rebel B, Rojas P, Ryabov V, Samoylov O, Sanchez MC, Sánchez Falero S, Seong IS, Shanahan P, Sheshukov A, Singh P, Singh V, Smith E, Smolik J, Snopok P, Solomey N, Song E, Sousa A, Soustruznik K, Strait M, Suter L, Sutton A, Talaga RL, Tapia Oregui B, Tas P, Thayyullathil RB, Thomas J, Tiras E, Torbunov D, Tripathi J, Tsaris A, Torun Y, Urheim J, Vahle P, Vasel J, Vinton L, Vokac P, Vrba T, Wallbank M, Wang B, Warburton TK, Wetstein M, While M, Whittington D, Wojcicki SG, Wolcott J, Yadav N, Yallappa Dombara A, Yonehara K, Yu S, Zadorozhnyy S, Zalesak J, Zamorano B, Zwaska R. First measurement of neutrino oscillation parameters using neutrinos and antineutrinos by NOvA. PHYSICAL REVIEW LETTERS 2019; 123:151803. [PMID: 31702305 DOI: 10.1103/physrevlett.123.151803] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Indexed: 06/10/2023]
Abstract
The NOvA experiment has seen a 4.4σ signal of ν[over ¯]_{e} appearance in a 2 GeV ν[over ¯]_{μ} beam at a distance of 810 km. Using 12.33×10^{20} protons on target delivered to the Fermilab NuMI neutrino beamline, the experiment recorded 27 ν[over ¯]_{μ}→ν[over ¯]_{e} candidates with a background of 10.3 and 102 ν[over ¯]_{μ}→ν[over ¯]_{μ} candidates. This new antineutrino data are combined with neutrino data to measure the parameters |Δm_{32}^{2}|=2.48_{-0.06}^{+0.11}×10^{-3} eV^{2}/c^{4} and sin^{2}θ_{23} in the ranges from (0.53-0.60) and (0.45-0.48) in the normal neutrino mass hierarchy. The data exclude most values near δ_{CP}=π/2 for the inverted mass hierarchy by more than 3σ and favor the normal neutrino mass hierarchy by 1.9σ and θ_{23} values in the upper octant by 1.6σ.
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Mollaoglu G, Guo B, Reyes T, Oliver T. MS05.04 Innate Immune Mediators in Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Xakaryeh L, Xia P, Koyfman S, Woody N, Joshi N, Guo B. Incidence and Dosimetric Impact of Minor and Observer Contouring Errors for Head and Neck. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Yang L, Li D, Guo B, Wei D. Theoretical Study on the Inclusion Interaction of β-Cyclodextrin with Gabapentin and Its Stability. J STRUCT CHEM+ 2019. [DOI: 10.1134/s0022476619040073] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Ren J, Wang Z, Feng Y, Guo B, Yu K, Zhu Z. First-principles and experimental investigation of carbon-coated MoS 2 hollow nanosphere heterogeneous structures with enhanced hydrogen evolution performance. NEW J CHEM 2019. [DOI: 10.1039/c9nj04607k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A composite heterostructure hollow-MoS2/C prepared using a two-step synthesis method as a highly efficient hydrogen evolution catalytic material.
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Manyam B, Kost S, Xia P, Tendulkar R, Shah C, Guo B. Assessing Quality of Heart Contouring and Dosimetry in Treatment of Left Sided Breast Cancer Across Cancer Centers within an Integrated Health System. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.1654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Guo B, Qiu L, Donaghue J, Hsu S, Xia P. Evaluating the Accuracy of Commercial Deformable Image Registration Software for Real Patient Images Using Anthropomorphic Modeling. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.1519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Shen L, Ajani J, Kim SB, Van Cutsem E, Guo B, Song J, Paton V, Kato K. A phase III, randomized, open-label study to compare the efficacy of tislelizumab versus chemotherapy as second-line therapy for advanced unresectable/metastatic esophageal squamous cell carcinoma (ESCC). Ann Oncol 2018. [DOI: 10.1093/annonc/mdy282.158] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Deng Y, Chen H, Zhang C, Cai T, Zhang B, Zhou S, Fountain JC, Pan RL, Guo B, Zhuang WJ. Evolution and characterisation of the AhRAF4 NB-ARC gene family induced by Aspergillus flavus inoculation and abiotic stresses in peanut. PLANT BIOLOGY (STUTTGART, GERMANY) 2018; 20:737-750. [PMID: 29603544 DOI: 10.1111/plb.12726] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Accepted: 03/23/2018] [Indexed: 06/08/2023]
Abstract
Aflatoxin contamination in peanut is a serious food safety issue to human health around the world. Finding disease resistance genes is a key strategy for genetic improvement in breeding to deal with this issue. We identified an Aspergillus flavus-induced NBS-LRR gene, AhRAF4, using a microarray-based approach. By comparison of 23 sequences from three species using phytogenetics, protein secondary structure and three-dimensional structural analyses, AhRAF4 was revealed to be derived from Arachis duranensis by recombination, and has newly evolved into a family of several members, characterised by duplications and point mutations. However, the members of the family descended from A. ipaensis were lost following tetraploidisation. AhRAF4 was slightly up-regulated by low temperature, drought, salicylic acid and ethylene, but down-regulated by methyl jasmonate. The distinct responses upon As. flavus inoculation and the differential reactions between resistant and susceptible varieties indicate that AhRAF4 might play a role in defence responses. Temporal and spatial expression and the phenotype of transformed protoplasts suggest that AhRAF4 may also be associated with pericarp development. Because tetraploid cultivated peanuts are vulnerable to many pathogens, an exploration of R-genes may provide an effective method for genetic improvement of peanut cultivars.
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Yang C, Wang L, Shen H, Zheng Y, Bade SA, Gauger PC, Chen Q, Zhang J, Guo B, Yoon KJ, Harmon KM, Main RG, Li G. Detection and genetic characterization of porcine pegivirus in pigs in the United States. Transbound Emerg Dis 2018; 65:618-626. [PMID: 29484834 DOI: 10.1111/tbed.12844] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Indexed: 02/05/2023]
Abstract
Using next-generation sequencing on vesicular swab and serum from swine from the USA exhibiting lameness and vesicles, porcine pegivirus (PPgV) was first identified and genetically characterized in the United States. Further screening using RT-PCR revealed that 24 of 159 (15.1%) serum samples were positive for PPgV. Future studies are needed to understand clinical impacts of the virus.
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Zhang J, Zhou LJ, Zhang HM, Zhao ZX, Dong SL, Wei S, Zhao J, Wang ZL, Guo B, Hu PA. Highly sensitive flexible three-axis tactile sensors based on the interface contact resistance of microstructured graphene. NANOSCALE 2018; 10:7387-7395. [PMID: 29595851 DOI: 10.1039/c7nr09149d] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The lack of high-performance tactile sensors, especially for pressure/force, is a huge obstacle for the widespread application of intelligent robots. Current pressure sensors are often operated in the high range of pressure and normal direction, showing a little ability in the low range of pressure and three-axis direction simultaneously. Herein, a highly sensitive flexible tactile sensor with three-axis force sensing capacity is presented by combining microstructured polydimethylsiloxane (PDMS) arrays and a reduced graphene oxide (rGO) film. The deformation of microstructured rGO/PDMS results in a change in the contact area between the rGO film and electrode, leading to a high sensitivity of -1.71 kPa-1 in the low range pressure of 0-225 Pa with a fast response time of 6 ms at a large feature size of 100 μm. To realize three-axis sensing, a sensing unit was built up, which was composed of the adjacent four parts of patterns and electrodes underneath a bump. A mechanical model of the exerted spatial force was established to calculate each axis force component via the deformation of the rGO/PDMS pattern. The experimental results show that the current difference between the adjacent two parts has a strong relationship with the applied force. As a proof of concept, we have demonstrated a 3 × 3 array sensor for arbitrary force sensing. Our tactile sensor would be used in transmitting information from a gentle spatial force and would exhibit broad applications as e-skin in integrated robots.
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Mao L, Kaizer MR, Zhao M, Guo B, Song YF, Zhang Y. Graded Ultra-Translucent Zirconia (5Y-PSZ) for Strength and Functionalities. J Dent Res 2018; 97:1222-1228. [PMID: 29694258 DOI: 10.1177/0022034518771287] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Ultra-translucent zirconias are drawing immense attention due to their fascinating esthetic appearance. However, the high translucency came at the expense of diminishing strength along with the reduced ability of transformation toughening due to the increased cubic zirconia content. We aim to address these issues by infiltrating glass on the surface of an ultra-translucent zirconia (5Y-PSZ). Glasses of different shades can be used and the resulting graded glass/zirconia layer is expected to improve the material's flexural strength without compromising its esthetics. We also aim to elucidate how clinically relevant surface treatments-namely, air abrasion, glazing, or polishing-affect the fracture resistance of these zirconias with a high cubic content. All surface treatments were performed on bar-shaped (2 × 3 × 25 mm3) and plate-shaped (12 × 12 × 1 mm3) specimens, which were then subjected to a 4-point bending test and translucency measurements, respectively. 5Y-PSZ proved to be significantly more translucent than 3Y-TZP but also much weaker. Our hypothesis was accepted, as the strength of the glass-infiltrated ultra-translucent 5Y-PSZ (582 ± 20 MPa) is over 70% higher than its uninfiltrated counterpart (324 ± 57 MPa). Its strength is also over 25% higher than the highly polished 5Y-PSZ (467 ± 38 MPa). In addition, the translucency of 5Y-PSZ (translucency parameter [ TP] = 34, contrast ratio [ CR] = 0.31) is not affected by glass infiltration ( TP = 34, CR = 0.32) when the residual surface glass is removed by gentle polishing using 6- and then 3-µm diamond grits. Finally, both air abrasion and the presence of a glaze layer on the tensile surface decreased flexural strength significantly, being 274 ± 55 and 211 ± 21 MPa, respectively. With a combined high strength and translucency, the newly developed glass-infiltrated 5Y-PSZ may be considered a suitable material for next-generation, damage-resistant, and esthetic dental restorations.
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Sun B, Guo B, Wu B, Kang J, Deng X, Zhang Z, Fan Y. Characteristics, management, and outcome of primary hyperparathyroidism at a single clinical center from 2005 to 2016. Osteoporos Int 2018; 29:635-642. [PMID: 29198075 DOI: 10.1007/s00198-017-4322-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 11/17/2017] [Indexed: 10/18/2022]
Abstract
UNLABELLED This study presents the clinical and biochemical profiles of patients with PHPT between 2005 and 2016 at our center. Most PHPT patients in China show symptomatic features. The number of symptomatic and asymptomatic patients increased during that time, and the number of individuals with parathyroid carcinoma is now increasing. INTRODUCTION Over the last decade, the prevalence of primary hyperparathyroidism (PHPT) has increased sharply, and the number of individuals with parathyroid cancer is still trending upward. Little is known about the clinical outlook of the disease over the last decade in China. The aim of this study was to describe the clinical characteristics of PHPT patients at our center from January 2005 to December 2016. METHODS Two hundred sixty patients with PHPT visiting Shanghai Jiao Tong University Affiliated Sixth People's Hospital were enrolled retrospectively. The clinical manifestations and biochemical abnormalities of these patients were analyzed. RESULTS Among all patients, 73.1% had symptomatic PHPT, while the number of symptomatic and asymptomatic patients increased 1 to 2.5 times and 1.5 to 3 times, respectively, from 2005 to 2016. Bone pain and single adenoma were the most frequent signs and pathological results. The patients with parathyroid carcinoma over the last 5 years accounted for 90% (9/10) of all parathyroid carcinoma patients from 2005 to 2016, and parathyroid carcinoma patients had higher levels of serum calcium, parathyroid hormone (PTH), and serum creatinine (P < 0.05) than parathyroid hyperplasia and parathyroid adenoma patients. CONCLUSIONS Most patients with PHPT in China still exhibit classic clinical and biochemical features. Both symptomatic and asymptomatic patients have increased over the last 12 years. Although the proportion of parathyroid carcinoma was small, a noticeable upward tendency was observed at our center.
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Luo X, Zhang B, Lian Z, Dong Y, Liu J, Pei S, Mo X, Zhang L, Huang W, Ouyang F, Guo B, Liang C, Zhang S. Value of two-cycle docetaxel, cisplatin, and 5-fluorouracil induction chemotherapy in hypopharyngeal carcinoma. Neoplasma 2018; 65:269-277. [PMID: 29368529 DOI: 10.4149/neo_2018_170213n102] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Various studies have investigated laryngeal function and survival after induction chemotherapy in hypopharyngeal carcinoma, but potential factors to help predict response rates after induction chemotherapy remain unknown. This retro- spective study evaluated which factors are related to an ineffective response to two-cycle docetaxel, cisplatin, and 5-fluoro- uracil (TPF) induction chemotherapy in hypopharyngeal carcinoma to determine potential candidates for this treatment in clinical practice. From Jan 2005 to Dec 2015, 81 patients diagnosed with hypopharyngeal squamous cell carcinoma based on a pathological examination were analyzed. They were administered two-cycle TPF induction chemotherapy, and magnetic resonance imaging was performed before and after induction chemotherapy. The mean survival time was 5.7 years (95% confidence interval, 5.1-6.2 years). The 1, 3, 5 and 6-year survival rates were 98.8%, 80.1%, 64.5%, and 54.2%, respectively. TPF induction chemotherapy was well tolerated; the main adverse effects resolved with symptomatic treatment. A response to TPF induction chemotherapy was associated with lymph node size, tumor grade, invasion region, T stage, and primary tumor. The following issues were significantly associated with an increasing non-response rate to two-cycle induction chemotherapy: increasing lymph node size, moderately differentiated squamous cell carcinoma, invasion of the esophagus along with the thyroid cartilage, and primary tumor in the piriform sinus. Lymph nodes of ≥2.15 cm, moderately differenti- ated tumor grade, or thyroid cartilage invasion were the best cutoff values for patients who did not respond to induction chemotherapy. However, the initial cancer site, cancer stage, and degree of cancer differentiation were not closely related to the efficacy of induction chemotherapy.
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Silve A, Papachristou I, Wüstner R, Sträßner R, Schirmer M, Leber K, Guo B, Interrante L, Posten C, Frey W. Extraction of lipids from wet microalga Auxenochlorella protothecoides using pulsed electric field treatment and ethanol-hexane blends. ALGAL RES 2018. [DOI: 10.1016/j.algal.2017.11.016] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Guo B, Shah C, Magnelli A, Manyam B, Tendulkar R, Cherian S, Palmison T, McCarthy D, Suh J, Xia P. Surface Guided Radiation Therapy (SGRT): The Sensitivity of the Region of Interest (ROI) Selection on the Translational and Rotational Accuracy for Whole Breast Irradiation. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.2208] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Vitish-Sharma P, King AJ, Abbas A, Maxwell-Armstrong C, Guo B, Acheson AG. The effect of acetazolamide on intra-ocular pressure after Trendelenburg positioning - a randomised double-blind crossover trial in volunteers. Anaesthesia 2017; 72:1523-1527. [PMID: 28832924 DOI: 10.1111/anae.14017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/08/2017] [Indexed: 11/30/2022]
Abstract
Recent evidence suggests Trendelenburg positioning can produce a significant rise in intra-ocular pressure. Peri-operative vision loss in patients undergoing laparoscopic colorectal surgery has been reported with the rise in intra-ocular pressure suggested as a possible factor. Acetazolamide decreases intra-ocular pressure by reducing the formation of aqueous humour, so we aimed to investigate if it could attenuate the intra-ocular pressure rise that can occur in the Trendelenburg position. Nine healthy volunteers were recruited and randomly assigned to a double-blind crossover comparison of placebo or acetazolamide with a minimal 4 days' washout period before the second study day. One and a half hours after taking the medication, volunteers lay head-down at 17° for 4 h. Intraocular pressure measurements were repeated in both eyes every 30 min over a 4-h period. There were two males and seven female volunteers, with a mean (SD) age of 54.3 (18.5) years. The mean (SD) increase in intra-ocular pressure following 4 h in the Trendelenburg position was 3.17 (4.63) mmHg after the placebo, and 0.02 (4.01) mmHg (p = 0.02) after acetazolamide. We have shown than acetazolamide can attenuate the rise that occurs in intra-ocular pressure when in the Trendelenburg position.
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Zhang CJ, Hua JF, Wan Y, Pai CH, Guo B, Zhang J, Ma Y, Li F, Wu YP, Chu HH, Gu YQ, Xu XL, Mori WB, Joshi C, Wang J, Lu W. Femtosecond Probing of Plasma Wakefields and Observation of the Plasma Wake Reversal Using a Relativistic Electron Bunch. PHYSICAL REVIEW LETTERS 2017; 119:064801. [PMID: 28949606 DOI: 10.1103/physrevlett.119.064801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Indexed: 06/07/2023]
Abstract
We show that a high-energy electron bunch can be used to capture the instantaneous longitudinal and transverse field structures of the highly transient, microscopic, laser-excited relativistic wake with femtosecond resolution. The spatiotemporal evolution of wakefields in a plasma density up ramp is measured and the reversal of the plasma wake, where the wake wavelength at a particular point in space increases until the wake disappears completely only to reappear at a later time but propagating in the opposite direction, is observed for the first time by using this new technique.
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Zhao LY, Tong DD, Xue M, Ma HL, Liu SY, Yang J, Liu YX, Guo B, Ni L, Liu LY, Qin YN, Wang LM, Zhao XG, Huang C. MeCP2, a target of miR-638, facilitates gastric cancer cell proliferation through activation of the MEK1/2-ERK1/2 signaling pathway by upregulating GIT1. Oncogenesis 2017; 6:e368. [PMID: 28759023 PMCID: PMC5541712 DOI: 10.1038/oncsis.2017.60] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 05/02/2017] [Accepted: 06/07/2017] [Indexed: 02/08/2023] Open
Abstract
Methyl-CpG binding protein 2 (MeCP2) is involved in the carcinogenesis and progression of multiple types of cancer. However, its precise role in gastric cancer (GC) and the relevant molecular mechanism remain unknown. In the present study, we found that miR-638 levels were lower in GC tissues and GC cell lines than in adjacent normal tissues and normal gastric epithelial cell lines, respectively. Low miR-638 levels were associated with poor tumor differentiation, tumor size and lymph node metastasis. MeCP2 expression levels were higher in GC tissues than in adjacent normal tissues. It was found that miR-638 inhibited GC cell proliferation, colony formation, G1–S transition and tumor growth, and induced cell apoptosis by directly targeting MeCP2. MeCP2 promoted GC cell proliferation, colony formation and G1–S cell-cycle transition, and suppressed apoptosis. Molecular mechanistic investigations were performed using an integrated approach with a combination of microarray analysis, chromatin immunoprecipitation sequencing and a reporter gene assay. The results showed that MeCP2 bound to the methylated CpG islands of G-protein-coupled receptor kinase-interacting protein 1 (GIT1) promoter and upregulated its expression, thereby activating the MEK1/2–ERK1/2 signaling pathway and promoting GC cell proliferation. Taken together, our study demonstrates that MeCP2, a target of miR-638, facilitates GC cell proliferation and induces cell-cycle progression through activation of the MEK1/2–ERK1/2 signaling pathway by upregulating GIT1. The findings suggest that MeCP2 plays a significant role in GC progression, and may serve as a potential target for GC therapy.
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Dalrymple BP, Guo B. TRIENNIAL GROWTH AND DEVELOPMENT SYMPOSIUM: Intramuscular fat deposition in ruminants and pigs: A transcriptomics perspective. J Anim Sci 2017; 95:2272-2283. [PMID: 28727003 DOI: 10.2527/jas.2016.1112] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The genomics era has led to an explosion in the study of gene expression in production animals. Intramuscular fat (IMF) content (both high and low) and composition are major quality attributes of meat, and more than 90 transcriptomic studies of IMF deposition have been undertaken in the ruminants and pigs since 2001, with the majority since 2008. The studies have implicated many genes involved in the control of adipogenesis, lipogenesis, and deposition of IMF, but there is relatively little consistency between the different studies. However, the genes encoding the synthesis enzymes acetyl-CoA carboxylase α, fatty acid synthase, and stearoyl-CoA desaturase; the fatty acid binding protein 4; the potential signaling protein thyroid hormone responsive; and the regulators C/EBPα, PPARγ, and sterol regulatory element binding transcription factor 1 are supported by 5 or more of the 90 studies. By combining the results of all the studies, complete pathways for long-chain fatty acid (LCFA) and triacylglyceride (TAG) synthesis are identified, as are a number of genes encoding proteins probably associated with the storage of TAG and genes encoding a number of known and potential adipokines. In contrast, support for the association of lipolytic pathways with IMF percentage is less strong. Differences in experimental design-in particular, the age of the animals, the rate of IMF deposition at sampling, the past nutritional history of the animals used, and the complexities of using a tissue with mixed cell types-have contributed to the differences in results and interpretation. Biomarkers predictive of future IMF percentage, facilitating reaching optimal IMF content at slaughter, may have industry utility, but to be useful in animal biopsy and postslaughter samples, where multiple cell types are present, genes must be carefully chosen to ensure that they are informative about the expected processes. Despite these problems, candidate biomarkers for estimation of de novo intramuscular adipocyte LCFA synthesis, LCFA uptake rate by intramuscular adipocytes, and IMF deposition rate have been identified and examples of their utility have been published. However, further work is required to demonstrate how best to apply the assays for the benefit of the relevant livestock production industries.
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Guo B, Li JB, Wang W, Xu M, Shao Q, Liu TH. [A comparison of dosimetric variance for external-beam partial breast irradiation using three-dimensional and four-dimensional computed tomography]. ZHONGHUA ZHONG LIU ZA ZHI [CHINESE JOURNAL OF ONCOLOGY] 2017; 39:303-307. [PMID: 28550674 DOI: 10.3760/cma.j.issn.0253-3766.2017.04.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the potential dosimetric benefits of four-dimensional computed tomography (4DCT) compared to three-dimensional CT (3DCT) in the planning of radiotherapy for external-beam partial breast irradiation (EB-PBI). Methods: Three-DCT and 4DCT scan sets were acquired for 20 patients who underwent EB-PBI. For each patient a conventional 3D conformal plan (3D-CRT) was generated based on end-inhalation phase (EI). The treatment plan based on the 4DCT EI phase images was copied and applied to the end-exhalation phase (EE) and 3DCT images (defined as EB-PBI(EI), EB-PBI(EE), EB-PBI(3D), respectively). Results: The median volumes of the tumour bed based on 3DCT, EI and EE were 20.99 cm(3,) 19.28 cm(3,) and 18.78 cm(3,) respectively. The tumour bed volume based on 3DCT was significantly greater than that of EI and EE volumes (P<0.05). The planning target volumes (PTV) coverage of EB-PBI(3D), EB-PBI(EI) and EB-PBI(EE) were 96.85%, 97.51%, 97.03%, respectively. The planning target volume (PTV) coverage of EB-PBI(3D) was significantly less than that of EB-PBI(EI) and EB-PBI(EE) (P<0.05). The median homogeneity indexs (HI) based on 3DCT, EI and EE were 0.13, 0.13, 0.13, respectively. The median conformal indexs (CI) based on 3DCT, EI and EE were 0.68, 0.69, 0.68, respectively. The median mean doses (D(mean)) based on 3DCT, EI and EE were 36.20 Gy, 36.20 Gy, 36.22 Gy, respectively. However there were no significant differences in the homogeneity index, conformity index and the mean dose of PTV between the three treatment plans (P>0.05). The EB-PBI(3D) plan resulted in the largest organs at risk dose (P<0.05). Conclusion: There was a significant benefit when using 4DCT to plan 3D-CRT for EB-PBI with regard to reduced non-target organ exposure, and might result in poor dose coverage when the PTV is determined using 3DCT.
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Adamson P, Aliaga L, Ambrose D, Anfimov N, Antoshkin A, Arrieta-Diaz E, Augsten K, Aurisano A, Backhouse C, Baird M, Bambah BA, Bays K, Behera B, Bending S, Bernstein R, Bhatnagar V, Bhuyan B, Bian J, Blackburn T, Bolshakova A, Bromberg C, Brown J, Brunetti G, Buchanan N, Butkevich A, Bychkov V, Campbell M, Catano-Mur E, Childress S, Choudhary BC, Chowdhury B, Coan TE, Coelho JAB, Colo M, Cooper J, Corwin L, Cremonesi L, Cronin-Hennessy D, Davies GS, Davies JP, Derwent PF, Desai S, Dharmapalan R, Ding P, Djurcic Z, Dukes EC, Duyang H, Edayath S, Ehrlich R, Feldman GJ, Frank MJ, Gabrielyan M, Gallagher HR, Germani S, Ghosh T, Giri A, Gomes RA, Goodman MC, Grichine V, Group R, Grover D, Guo B, Habig A, Hartnell J, Hatcher R, Hatzikoutelis A, Heller K, Himmel A, Holin A, Hylen J, Jediny F, Judah M, Kafka GK, Kalra D, Kasahara SMS, Kasetti S, Keloth R, Kolupaeva L, Kotelnikov S, Kourbanis I, Kreymer A, Kumar A, Kurbanov S, Lang K, Lee WM, Lin S, Liu J, Lokajicek M, Lozier J, Luchuk S, Maan K, Magill S, Mann WA, Marshak ML, Matera K, Matveev V, Méndez DP, Messier MD, Meyer H, Miao T, Miller WH, Mishra SR, Mohanta R, Moren A, Mualem L, Muether M, Mufson S, Murphy R, Musser J, Nelson JK, Nichol R, Niner E, Norman A, Nosek T, Oksuzian Y, Olshevskiy A, Olson T, Paley J, Pandey P, Patterson RB, Pawloski G, Pershey D, Petrova O, Petti R, Phan-Budd S, Plunkett RK, Poling R, Potukuchi B, Principato C, Psihas F, Radovic A, Rameika RA, Rebel B, Reed B, Rocco D, Rojas P, Ryabov V, Sachdev K, Sail P, Samoylov O, Sanchez MC, Schroeter R, Sepulveda-Quiroz J, Shanahan P, Sheshukov A, Singh J, Singh J, Singh P, Singh V, Smolik J, Solomey N, Song E, Sousa A, Soustruznik K, Strait M, Suter L, Talaga RL, Tamsett MC, Tas P, Thayyullathil RB, Thomas J, Tian X, Tognini SC, Tripathi J, Tsaris A, Urheim J, Vahle P, Vasel J, Vinton L, Vold A, Vrba T, Wang B, Wetstein M, Whittington D, Wojcicki SG, Wolcott J, Yadav N, Yang S, Zalesak J, Zamorano B, Zwaska R. Measurement of the Neutrino Mixing Angle θ_{23} in NOvA. PHYSICAL REVIEW LETTERS 2017; 118:151802. [PMID: 28452513 DOI: 10.1103/physrevlett.118.151802] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Indexed: 06/07/2023]
Abstract
This Letter reports new results on muon neutrino disappearance from NOvA, using a 14 kton detector equivalent exposure of 6.05×10^{20} protons on target from the NuMI beam at the Fermi National Accelerator Laboratory. The measurement probes the muon-tau symmetry hypothesis that requires maximal θ_{23} mixing (θ_{23}=π/4). Assuming the normal mass hierarchy, we find Δm_{32}^{2}=(2.67±0.11)×10^{-3} eV^{2} and sin^{2}θ_{23} at the two statistically degenerate values 0.404_{-0.022}^{+0.030} and 0.624_{-0.030}^{+0.022}, both at the 68% confidence level. Our data disfavor the maximal mixing scenario with 2.6σ significance.
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Liu H, Wei Y, Lu H, Wei S, Jiang T, Zhang Y, Ban J, Guo B. The determination and application of (87) Sr/(86) Sr ratio in verifying geographical origin of wheat. JOURNAL OF MASS SPECTROMETRY : JMS 2017; 52:248-253. [PMID: 28294490 DOI: 10.1002/jms.3930] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2016] [Revised: 02/26/2017] [Accepted: 03/09/2017] [Indexed: 06/06/2023]
Abstract
As 87 Sr/86 Sr ratio plays a significant role in authenticating the geographical origin of foodstuff, it is important to identify where the 87 Sr/86 Sr signature in food comes from, and the methods of 87 Sr/86 Sr ratio analysis in food and environmental samples. Wheat with three genotypes, soil and groundwater samples were collected from three regions of China during harvest time of 2014. The 87 Sr/86 Sr ratios in the samples were determined by thermal ionization mass spectrometer in order to investigate the possible source of 87 Sr/86 Sr in wheat, and the concentrations of Rb and Sr in wheat and soils were also detected by inductively coupled plasma mass spectrometry and combined with 87 Sr/86 Sr ratio in order to trace the geographical origin of wheat. The 87 Sr/86 Sr ratio, the contents Rb and Sr, and Rb/Sr ratio of wheat and soil samples showed significant differences among three regions. The 87 Sr/86 Sr ratios and the concentrations of Rb and Sr in soils were higher than those in corresponding wheat. The 87 Sr/86 Sr ratio in wheat was identical to that corresponding soil NH4 NO3 extracts (labile fraction of soil) and groundwater. Wheat uptake more Rb than Sr. 3D distribution of 87 Sr/86 Sr, Rb and Sr could identify wheat samples from different regions clearly. The 87 Sr/86 Sr ratio of wheat reflects the 87 Sr/86 Sr ratio of the associated environment including soil and groundwater. It is expected that the use the parameters of 87 Sr/86 Sr ratio, the contents of Rb and Sr will allow to trace geographical origin of wheat. Copyright © 2017 John Wiley & Sons, Ltd.
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Guo B, Yu K, Li H, Qi R, Zhang Y, Song H, Tang Z, Zhu Z, Chen M. Coral-Shaped MoS 2 Decorated with Graphene Quantum Dots Performing as a Highly Active Electrocatalyst for Hydrogen Evolution Reaction. ACS APPLIED MATERIALS & INTERFACES 2017; 9:3653-3660. [PMID: 28060479 DOI: 10.1021/acsami.6b14035] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We report a new CVD method to prepare coral-shaped monolayer MoS2 with a large amount of exposed edge sites for catalyzing hydrogen evolution reaction. The electrocatalytic activities of the coral-shaped MoS2 can be further enhanced by electronic band engineering via decorated with graphene quantum dot (GQD) decoration. Generally, GQDs improve the electrical conductivity of the MoS2 electrocatalyst. First-principles calculations suggest that the coral MoS2@GQD is a zero-gap material. The high electric conductivity and pronounced catalytically active sites give the hybrid catalyst outstanding electrocatalytic performance with a small onset overpotential of 95 mV and a low Tafel slope of 40 mV/dec as well as excellent long-term electrocatalytic stability. The present work provides a potential way to design two-dimensional hydrogen evolution reaction (HER) electrocatalysts through controlling the shape and modulating the electric conductivity.
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Zhao R, Xu J, Guo B. Preparation and In Vitro Evaluation of Biodegradable Microspheres with Narrow Size Distribution for Pulmonary Delivery. Indian J Pharm Sci 2017. [DOI: 10.4172/pharmaceutical-sciences.1000310] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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