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Su J, Li M, Yang H, Shu H, Yu K, Cao H, Xu G, Wang M, Zhu Y, Zhu Y, Ma C, Shao J. Enrichment of grape berries and tomato fruit with health-promoting tartaric acid by expression of the Vitis vinifera transketolase VvTK2 gene. Int J Biol Macromol 2024; 257:128734. [PMID: 38086429 DOI: 10.1016/j.ijbiomac.2023.128734] [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: 11/01/2023] [Revised: 12/07/2023] [Accepted: 12/08/2023] [Indexed: 01/27/2024]
Abstract
Tartaric acid (TA) is a major non-fermentable plant soluble acid that abundantly occur in grapes and wines, imparting low pH and tart flavour to berries thereby regulating numerous quality attributes of wine, such as flavour, microbial stability, and aging potential. Evaluation of acidity in mature fruits of 21 wine grape (Vitis vinifera) varieties revealed significant variation between 'Beichun' and 'Gewürztraminer', which was correlated with TA content. RNA-seq analysis of fruits from the two cultivars at different developmental stages revealed that a transketolase gene, VvTK2, was significantly dominantly expressed in the high TA phenotype 'Beichun' variety. Subcellular localization assay showed that VvTK2 protein was located in the chloroplast. Virus-induced VvTK2 gene silencing significantly decreased the expression of 2-keto-L-gulonic acid reductase (Vv2-KGR) as well as L-idonate dehydrogenase (VvL-IdnDH3) and inhibited TA accumulation, while its transient over-expression in grape showed the opposite results. Heterologous VvTK2 over-expression in tomato demonstrated its obvious capacity to induce TA synthesis. Overall, these results highlights a novel role of VvTK2 in modulating TA biosynthesis, which could be an excellent strategy for future genetic improvement of grape flavour.
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Affiliation(s)
- Jing Su
- College of Landscape and Horticulture, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Menghan Li
- College of Landscape and Horticulture, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Huanqi Yang
- College of Landscape and Horticulture, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Helin Shu
- College of Landscape and Horticulture, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Kunmiao Yu
- College of Landscape and Horticulture, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Huiling Cao
- College of Landscape and Horticulture, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Gezhe Xu
- College of Landscape and Horticulture, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Minghui Wang
- College of Landscape and Horticulture, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Yifan Zhu
- College of Plant protection, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Yingan Zhu
- College of Landscape and Horticulture, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Chunhua Ma
- College of Landscape and Horticulture, Yunnan Agricultural University, Kunming 650201, Yunnan, China.
| | - Jianhui Shao
- College of Plant protection, Yunnan Agricultural University, Kunming 650201, Yunnan, China.
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Yang C, Sun Z, Zhang F, Shu H, Li J, Xiang W. TSUnet-CC: Temporal Spectrogram Unet embedding Cross Channel-wise attention mechanism for MDD identification. Annu Int Conf IEEE Eng Med Biol Soc 2023; 2023:1-4. [PMID: 38083642 DOI: 10.1109/embc40787.2023.10340299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
Automatic detection of major depressive disorder (MDD) with multiple-channel electroencephalography (EEG) signals is of great significance for treatment of the mental diseases. In a U-net network, clear EEG signals are fed to obtain temporal feature tensor through encoder and decoder networks with several convolution operations. Moreover, the clear EEG signals can be converted into multi-scale spectrogram to obtain the rich saliency information and then the spectrogram feature tensor can be extracted by another symmetrical U-net. The temporal and spectrogram feature tensors can provide more comprehensive information, but may also contain redundant information, which may affect the detection of MDD. To deal with such issue, this paper proposed a novel Temporal Spectrogram Unet (TSUnet-CC), which embeds the cross channel-wise attention mechanism for multiple-channel EEGbased MDD identification. We make three novel contributions: 1) multi-scale saliency-encoded spectrogram using Fourierbased approach to capture rich saliency information under different scales, 2) TSUnet network using a symmetrical twostream U-net architecture that learns multiple temporal and spectrogram feature tensors in time and frequency domains, and 3) cross channel-wise block enabling the larger weights of key feature channels that contain MDD information. The leaveone-subject-out experiments show that our proposed TSUnetCC gains high performance with a classification accuracy up to 98.55% and 99.22% in eyes closed and eyes open datasets, which outperformed some state-of-the-art methods and revealed its clinical potential.
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3
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Ren J, Wang XB, Shu H, Xiong WJ, Wei QF, Wang X, Shi N, Xiong XL. [Analysis of screening results and risk factors of high-risk populations of lung cancer in Nanchang city from 2018 to 2019]. Zhonghua Zhong Liu Za Zhi 2021; 43:1316-1321. [PMID: 34915643 DOI: 10.3760/cma.j.cn112152-20200615-00559] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To collate and analyze the screening results of high-risk lung cancer populations in communities in Nanchang from 2018 to 2019, and to explore the lung-positive nodules and risk factors for lung cancer. Methods: Data of the screening subjects in 8 administrative districts and 15 street health service centers in Nanchang city, Jiangxi province from November 2018 to October 2019 were collected, people at high risk of lung cancer was assessed, clinical screening of high-risk groups of lung cancer was conducted by low-dose helical computed tomography (LDCT), and risk factors for suspected lung cancer and lung-positive nodules were analyzed. Results: Of the 25 871 people participated in screening, 5 220 were at high risk for lung cancer and 15 374 without other malignant tumors were at high risk. There were 2 417 cases participated in clinical LDCT screening, including 193 cases of lung-positive nodules, 67 cases of suspected lung cancer, 912 cases of other lung diseases, the positive rate of lung cancer or lung-positive nodules was 10.76% (260/2 417). Univariate analysis showed that age, coarse grain intake, oil intake, housing heating, passive smoking, alcohol consumption and mental trauma were associated with positive pulmonary nodules or lung cancer (all P<0.05). Multivariate analysis showed that gender, age, housing heating, smoking and drinking were related to the occurrence of lung nodules or lung cancer (all P<0.05). Conclusions: Men are more likely to develop lung cancer or lung-positive nodules than women. The age is an independent risk factor for lung-positive nodules or lung cancer. In a certain range, age will increase the incidence of lung cancer, housing heating may be the protective factor for lung cancer, while smoking and drinking are risk factors.
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Affiliation(s)
- J Ren
- Jiangxi Cancer Centre, Jiangxi Tumor Hospital, Nanchang 330029, China
| | - X B Wang
- Jiangxi Cancer Centre, Jiangxi Tumor Hospital, Nanchang 330029, China
| | - H Shu
- Jiangxi Cancer Centre, Jiangxi Tumor Hospital, Nanchang 330029, China
| | - W J Xiong
- Jiangxi Cancer Centre, Jiangxi Tumor Hospital, Nanchang 330029, China
| | - Q F Wei
- Jiangxi Cancer Centre, Jiangxi Tumor Hospital, Nanchang 330029, China
| | - X Wang
- Preventive Medicine Teaching and Research Section, School of Basic Medicine, Jiujiang University, Jiujiang 332000, China
| | - N Shi
- Jiangxi Medical College, Shangrao 334000, China
| | - X L Xiong
- Jiangxi Cancer Centre, Jiangxi Tumor Hospital, Nanchang 330029, China
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Hu S, Shu H, Yuan J, Gao J, Mu P, Ren C, Sang W, Guo L, Chen H. Characterisation of Wheat–Oat Flour Extrudate: Physicochemical and Β-Glucan Attributes. AAlim 2020. [DOI: 10.1556/066.2020.49.4.8] [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: 11/19/2022]
Abstract
The objective of this study was to evaluate the effect of wheat–oat flour ratio on the physical properties and β-glucan characteristics of extrudates. Results showed that increasing the wheat–oat flour ratio resulted in a decrease in the water solubility index (r2=0.8567) and hardness (r2=0.9316), whereas the expansion ratio (r2=0.9307) and water absorption index (r2=0.9061) increased. Wheat flour generally caused an increase in L values from 57.81 to 62.94 providing bright samples. Few cells were observed at high wheat–oat flour ratios under a scanning electron microscope, and a smooth surface was noted. Meanwhile, the total (r2=0.9867) and soluble (r2=0.9848) β-glucan contents were inversely proportional to the wheat–oat flour ratio. Extrudates with added wheat flour had a high molecular weight, but wheat flour had no significant (P<0.05) effect on the viscosity of β-glucan extracts. Conclusively, incorporation of wheat flour at a wheat–oat flour ratio of 2.33 provides ready-to-eat food based on whole oat flour, on account of improving the texture and providing sufficient β-glucan contents (0.806 g/100 g) without significantly affecting β-glucan viscosity.
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Affiliation(s)
- S. Hu
- aState Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, Jiangxi. China
- bSino-German Joint Research Institute, Nanchang University, Nanchang 330047, Jiangxi. China
- cSchool of Food Science and Technology, Nanchang University, Nanchang 330031, Jiangxi. China
| | - H. Shu
- aState Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, Jiangxi. China
- bSino-German Joint Research Institute, Nanchang University, Nanchang 330047, Jiangxi. China
- cSchool of Food Science and Technology, Nanchang University, Nanchang 330031, Jiangxi. China
| | - J.L. Yuan
- aState Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, Jiangxi. China
- dSchool of Pharmaceutical Science, Nanchang University, Nanchang 330006, Jiangxi. China
| | - J.Y. Gao
- aState Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, Jiangxi. China
- cSchool of Food Science and Technology, Nanchang University, Nanchang 330031, Jiangxi. China
| | - P.Y. Mu
- eInstitute of Crop Research, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi 832000, Xinjiang. China
| | - C.Z. Ren
- fBaicheng Academy of Agricultural Sciences, Baicheng 137000, Jilin. China
| | - W. Sang
- eInstitute of Crop Research, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi 832000, Xinjiang. China
| | - L.C. Guo
- fBaicheng Academy of Agricultural Sciences, Baicheng 137000, Jilin. China
| | - H.B. Chen
- aState Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, Jiangxi. China
- bSino-German Joint Research Institute, Nanchang University, Nanchang 330047, Jiangxi. China
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Riva A, Togni S, Giacomelli L, Franceschi F, Eggenhoffner R, Feragalli B, Belcaro G, Cacchio M, Shu H, Dugall M. Effects of a curcumin-based supplementation in asymptomatic subjects with low bone density: a preliminary 24-week supplement study. Eur Rev Med Pharmacol Sci 2017; 21:1684-1689. [PMID: 28429336] [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: 06/07/2023]
Abstract
OBJECTIVE Osteopenia is a chronic bone condition characterized by decreased calcification, density, or bone mass that, if untreated, can lead to osteoporosis and bone fractures. Although its increasing prevalence, nowadays osteopenia is not adequately prevented and managed. In this study, we evaluated the efficacy, in term of changes in bone density, and safety of an oral formulation based on turmeric phytosome (Meriva®), in subjects suffering from low bone density. PATIENTS AND METHODS 57 otherwise healthy subjects with low bone density were enrolled in this pilot, supplement study. Informed participants freely decided to follow either a standard management (SM) to control low bone density (control group=28) or SM associated with a curcumin-based oral supplementation (supplement group=29). The bone densities of heel, small finger and upper jaw were evaluated at inclusion and at different time points during the observational period (4, 12 and 24 weeks), in all subjects. RESULTS The bone density of the heel measured by the Sahara densitometer remarkably improved in the Meriva®-supplemented group, with a significant decrease of ultrasounds transmission values at week 12 (-18.4%) and at week 24 (-21.0%), compared with baseline values. The bone densities of small finger and upper jaw also significantly increased during the study in supplemented subjects, reaching +7.1% and +4.8%, respectively, at week 24, with respect to values at inclusion. Noteworthy, no significant changes of heel, small finger and upper jaw densities were observed in the control group. Last, no safety and tolerability issues were reported during the observational period. CONCLUSIONS This preliminary study suggests that a curcumin-based supplementation in combination with an appropriate lifestyle could be beneficial in the prevention and management of osteopenia.
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Affiliation(s)
- A Riva
- Indena SpA, Milan, Italy.
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Schreibmann E, Cordova J, Gurbani S, Holder C, Cooper L, Shu H, Shim H. SU-F-J-93: Automated Segmentation of High-Resolution 3D WholeBrain Spectroscopic MRI for Glioblastoma Treatment Planning. Med Phys 2016. [DOI: 10.1118/1.4956001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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7
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Castelli J, Zhang P, Simon A, Rigaud B, Ospina Arango J, Nassef M, Lafond C, Henry O, Haigron P, Li B, Shu H, De crevoisier R. PO-0911: Optimal adaptive radiotherapy strategy in head and neck to spare the parotid glands. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)32161-2] [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: 10/21/2022]
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Xiang W, Yang C, Bellanger JJ, Shu H, Le Bouquin Jeannès R. Inferring effective connectivity in epilepsy using dynamic causal modeling. Ing Rech Biomed 2015. [DOI: 10.1016/j.irbm.2015.09.001] [Citation(s) in RCA: 2] [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: 10/22/2022]
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9
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Castelli J, Simon A, Zhang P, Rigaud B, Chajon E, Ospina J, Lafond C, Bénézéry K, Shu H, de Crevoisier R. Stratégie optimale de radiothérapie adaptative dans les cancers de la sphère ORL localement évolués. Cancer Radiother 2015. [DOI: 10.1016/j.canrad.2015.07.011] [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: 10/23/2022]
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10
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Yang G, Lalande V, Chen L, Azzabou N, Larcher T, de Certaines J, Shu H, Coatrieux JL. MRI texture analysis of GRMD dogs using orthogonal moments: A preliminary study. Ing Rech Biomed 2015. [DOI: 10.1016/j.irbm.2015.06.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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11
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Zhu J, Simon A, Haigron P, Lafond C, Acosta O, Shu H, Castelli J, Li B, De Crevoisier R. SU-E-P-42: Benefit of Equivalent Uniform Dose in Prostate IMRT Planning to Reduce Bladder Toxicity. Med Phys 2015. [DOI: 10.1118/1.4923976] [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: 11/07/2022] Open
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12
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Chang S, Wei F, Yang Y, Wang A, Jin Z, Li J, He Y, Shu H. Engineering tobacco to remove mercury from polluted soil. Appl Biochem Biotechnol 2015; 175:3813-27. [PMID: 25690353 DOI: 10.1007/s12010-015-1549-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Accepted: 02/09/2015] [Indexed: 10/24/2022]
Abstract
Tobacco is an ideal plant for modification to remove mercury from soil. Although several transgenic tobacco strains have been developed, they either release elemental mercury directly into the air or are only capable of accumulating small quantities of mercury. In this study, we constructed two transgenic tobacco lines: Ntk-7 (a tobacco plant transformed with merT-merP-merB1-merB2-ppk) and Ntp-36 (tobacco transformed with merT-merP-merB1-merB2-pcs1). The genes merT, merP, merB1, and merB2 were obtained from the well-known mercury-resistant bacterium Pseudomonas K-62. Ppk is a gene that encodes polyphosphate kinase, a key enzyme for synthesizing polyphosphate in Enterobacter aerogenes. Pcs1 is a tobacco gene that encodes phytochelatin synthase, which is the key enzyme for phytochelatin synthesis. The genes were linked with LP4/2A, a sequence that encodes a well-known linker peptide. The results demonstrate that all foreign genes can be abundantly expressed. The mercury resistance of Ntk-7 and Ntp-36 was much higher than that of the wild type whether tested with organic mercury or with mercuric ions. The transformed plants can accumulate significantly more mercury than the wild type, and Ntp-36 can accumulate more mercury from soil than Ntk-7. In mercury-polluted soil, the mercury content in Ntp-36's root can reach up to 251 μg/g. This is the first report to indicate that engineered tobacco can not only accumulate mercury from soil but also retain this mercury within the plant. Ntp-36 has good prospects for application in bioremediation for mercury pollution.
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Affiliation(s)
- S Chang
- Haikou Experimental Station, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
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13
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Hu F, Deng X, Yang X, Jin H, Gu D, Lv X, Wang C, Zhang Y, Huo X, Shen Q, Luo Q, Zhao F, Ge T, Zhao F, Chu W, Shu H, Yao M, Fan J, Qin W. Hypoxia upregulates Rab11-family interacting protein 4 through HIF-1α to promote the metastasis of hepatocellular carcinoma. Oncogene 2015; 34:6007-17. [PMID: 25745995 DOI: 10.1038/onc.2015.49] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Revised: 12/23/2014] [Accepted: 01/14/2015] [Indexed: 12/21/2022]
Abstract
Hypoxic microenvironment is a powerful driving force for the invasion and metastasis of hepatocellular carcinoma (HCC). Hypoxia-inducible factor 1α (HIF-1α), as a crucial regulator of transcriptional responses to hypoxia, induces the expression of multiple target genes involved in different steps of HCC metastatic process. It is critical to find target genes associated with metastasis under hypoxia for shedding new light on molecular mechanism of HCC metastasis. In this study, we uncovered that hypoxia could induce the upregulation of Rab11-family interacting protein 4 (Rab11-FIP4) and activation of Rab11-FIP4 promoter by HIF-1α. The overexpression of Rab11-FIP4 significantly enhanced the mobility and invasiveness of HCC cells in vitro, also contributed to distant lung metastasis in vivo, whereas silencing of Rab11-FIP4 decreased the ability of migration and invasion in HCC cells in vitro and suppressed lung metastasis in vivo. Rab11-FIP4 facilitated HCC metastasis through the phosphorylation of PRAS40, which was regulated by mTOR. Furthermore, the expression level of Rab11-FIP4 was significantly increased in HCC tissues and high expression of Rab11-FIP4 was closely correlated with vascular invasion and poor prognosis in HCC patients. A markedly positive correlation between the expression of Rab11-FIP4 and HIF-1α was observed in HCC tissues and combination of Rab11-FIP4 and HIF-1α was a more valuable predictor of poor prognosis for HCC patients. In conclusion, Rab11-FIP4 is a target gene of HIF-1α and has a pro-metastatic role in HCC, suggesting that Rab11-FIP4 may be a promising candidate target for HCC treatment.
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Affiliation(s)
- F Hu
- Shanghai Medical College of Fudan University, Shanghai, China.,State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - X Deng
- Shanghai Medical College of Fudan University, Shanghai, China.,State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - X Yang
- Key Laboratory for Carcinogenesis and Cancer Invasion, The Chinese Ministry of Education, Liver Cancer Institute, Zhongshan Hospital and Shanghai Medical College, Fudan University, Shanghai, China
| | - H Jin
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - D Gu
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Department of Pathophysiology, Guangdong Medical College, Dongguan, China
| | - X Lv
- Basic Medical Research Centre, Medical College of Nantong University, Nantong, China
| | - C Wang
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Y Zhang
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - X Huo
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Q Shen
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Q Luo
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - F Zhao
- Basic Medical Research Centre, Medical College of Nantong University, Nantong, China
| | - T Ge
- Shanghai Medical College of Fudan University, Shanghai, China.,State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - F Zhao
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - W Chu
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - H Shu
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - M Yao
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - J Fan
- Key Laboratory for Carcinogenesis and Cancer Invasion, The Chinese Ministry of Education, Liver Cancer Institute, Zhongshan Hospital and Shanghai Medical College, Fudan University, Shanghai, China
| | - W Qin
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Xiong GB, Zhang GN, Xiao Y, Niu BZ, Qiu HZ, Wu B, Lin GL, You L, Shu H. MicroRNA-219-5p functions as a tumor suppressor partially by targeting platelet-derived growth factor receptor alpha in colorectal cancer. Neoplasma 2015; 62:855-63. [PMID: 26458304 DOI: 10.4149/neo_2015_104] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Platelet-derived growth factor receptor (PDGFR) signaling pathway was involved in the progress of colorectal cancer (CRC). By using the bioinformatic system online, we found that PDGFRα is a potential target of miR-219-5p. However, the expression pattern and underlying mechanisms of miR-219-5p had not been elucidated in CRC. Herein, we first evaluated the expression of miR-219-5p in tumor tissues by real-time polymerase chain reaction. Next, we confirmed that PDGFRα is the target of miR-219-5p by using luciferase report. And then, we investigated the biological functions of miR-219-5p in vitro in cell proliferation and apoptosis as well as cell cycle by gain and loss of function strategies. Data shown that miR-219-5p is down-regulated in CRC tissues compared with the corresponding matched normal tissues. PDGFRα was a direct target of miR-219-5p. Overexpression of miR-219-5p could inhibit cell proliferation, promote cell apoptosis and induce cell cycle arrest at the G1 phase. Furthermore, miR-219-5p suppressed the activation of the phosphatidylinositol 3-kinase/Akt signaling pathway and downregulated G1 cell-cycle-related protein cyclin D1, cyclin-dependent kinase (CDK) 4, and CDK6. Taken together, our results demonstrate that miR-219-5p functions as a tumor suppressor partially by targeting PDGFRα in colorectal cancer.
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Shu H, Xu L, Li Z, Li J, Jin Z, Chang S. Tobacco arabinogalactan protein NtEPc can promote banana (Musa AAA) somatic embryogenesis. Appl Biochem Biotechnol 2014; 174:2818-26. [PMID: 25227688 DOI: 10.1007/s12010-014-1228-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Accepted: 09/10/2014] [Indexed: 11/28/2022]
Abstract
Banana is an important tropical fruit worldwide. Parthenocarpy and female sterility made it impossible to improve banana varieties through common hybridization. Genetic transformation for banana improvement is imperative. But the low rate that banana embryogenic callus was induced made the transformation cannot be performed in many laboratories. Finding ways to promote banana somatic embryogenesis is critical for banana genetic transformation. After tobacco arabinogalactan protein gene NtEPc was transformed into Escherichia coli (DE3), the recombinant protein was purified and filter-sterilized. A series of the sterilized protein was added into tissue culture medium. It was found that the number of banana immature male flowers developing embryogenic calli increased significantly in the presence of NtEPc protein compared with the effect of the control medium. Among the treatments, explants cultured on medium containing 10 mg/l of NtEPc protein had the highest chance to develop embryogenic calli. The percentage of lines that developed embryogenic calli on this medium was about 12.5 %. These demonstrated that NtEPc protein can be used to promote banana embryogenesis. This is the first paper that reported that foreign arabinogalactan protein (AGP) could be used to improve banana somatic embryogenesis.
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Affiliation(s)
- H Shu
- Haikou Experimental Station, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
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16
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Zhang P, Simon A, De Crevoisier R, Haigron P, Nassef M, Li B, Shu H. A new pencil beam model for photon dose calculations in heterogeneous media. Phys Med 2014; 30:765-73. [DOI: 10.1016/j.ejmp.2014.05.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 05/26/2014] [Accepted: 05/28/2014] [Indexed: 11/28/2022] Open
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Blay C, Simon A, Cazoulat G, Dardelet E, Viard R, Gibon D, Shu H, Haigron P, Lafond C, de Crevoisier R. Contrôle qualité du recalage prostatique en cas guidage par tomographie conique. Cancer Radiother 2014. [DOI: 10.1016/j.canrad.2014.07.113] [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: 10/24/2022]
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Eaton B, Patel K, Prabhu R, Kandula S, Curran W, Shu H, Crocker I. Single Fraction Radiosurgery Versus Hypofractionated Radiosurgery for the Treatment of Resected Large Brain Metastases: A Comparison of Complications and Local Tumor Control. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1074] [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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Schreibmann E, Fox T, Curran W, Shu H, Crocker I. Automated Population-Based Planning for Whole Brain Radiation Therapy. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1073] [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: 11/24/2022]
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Schreibmann E, Cordova J, Shu H, Crocker I, Curran W, Holder C, Shim H. TH-A-BRF-09: Integration of High-Resolution MRSI Into Glioblastoma Treatment Planning. Med Phys 2014. [DOI: 10.1118/1.4889555] [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: 11/07/2022] Open
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Schreibmann E, Fox T, Crocker I, Shu H. SU-D-BRD-06: Automated Population-Based Planning for Whole Brain Radiation Therapy. Med Phys 2014. [DOI: 10.1118/1.4887885] [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: 11/07/2022] Open
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Shu H, Jönsson BA, Larsson M, Nånberg E, Bornehag CG. PVC flooring at home and development of asthma among young children in Sweden, a 10-year follow-up. Indoor Air 2014; 24:227-35. [PMID: 24118287 DOI: 10.1111/ina.12074] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [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: 03/19/2013] [Accepted: 10/02/2013] [Indexed: 05/04/2023]
Abstract
UNLABELLED The incidence of asthma and allergy has increased throughout the developed world over the past decades. During the same period of time, the use of industrial chemicals such as phthalates, commonly used as plasticizers in polyvinylchloride (PVC) flooring material, has increased. The aim of this study was to investigate whether PVC flooring in the home of children in the age of 1-5 years is associated with the development of asthma in 5- and 10-year follow-up investigations (n = 3228). Dampness in Buildings and Health Study (DBH Study) commenced in 2000 in Värmland, Sweden. The current analyses included subjects who answered all baseline and follow-up questionnaires. Logistic regression analyses were applied to questionnaire results. Children who had PVC floorings in the bedroom at baseline were more likely to develop doctor-diagnosed asthma during the following 10-year period when compared with children living without. There were indications that PVC flooring in the parents' bedrooms was strongly associated with the new cases of doctor-diagnosed asthma when compared with child's bedroom. Our results suggest that PVC flooring exposure during pregnancy could be a critical period in the development of asthma in children at a later time; prenatal exposure and measurements of phthalate metabolites should be included in the future. PRACTICAL IMPLICATIONS This study has found that PVC flooring material in early life was related to incidence of asthma during the following 10 years when compared with other flooring materials and especially when comparing with wood flooring type.The study has further indicated that PVC flooring in the parents’ bedroom (proxy for prenatal exposure) was more associated with the development of asthma than PVC in the child’s bedroom was. Our results suggest that PVC flooring exposure during pregnancy could be a critical period in the development of asthma in children at a later time. In future prospective cohort study, prenatal exposure and measurements of phthalate metabolites should be included.
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Affiliation(s)
- H Shu
- Department of Health Sciences, Karlstad University, Karlstad, Sweden
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Abstract
The removal of cadmium (Cd) from wastewater before it is released from factories is important for protecting human health. Although some researchers have developed engineered bacteria, the resistance of these engineered bacteria to Cd have not been improved. In this study, two key genes involved in glutathione synthesis (gshA and gshB), a serine acetyltransferase gene (cysE), a Thlaspi caerulescens phytochelatin synthase gene (TcPCS1), and a heavy metal ATPase gene (TcHMA3) were transformed into Escherichia coli BL21. The resistance of the engineered bacterium to Cd was significantly greater than that of the initial bacterium and the Cd accumulation in the engineered bacterium was much higher than in the initial bacterium. In addition, the Cd resistance of the bacteria harboring gshB, gshA, cysE, and TcPCS1 was higher than that of the bacteria harboring gshA, cysE, and TcPCS1. This finding demonstrated that gshB played an important role in glutathione synthesis and that the reaction catalyzed by glutathione synthase was the limiting step for producing phytochelatins. Furthermore, TcPCS1 had a greater specificity and a higher capacity for removing Cd than SpPCS1, and TcHMA3 not only played a role in T. caerulescens but also functioned in E. coli.
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Affiliation(s)
- S Chang
- Haikou Experimental Station, Chinese Academy of Tropical Agricultural Sciences, Haikou, China and Key Laboratory of Hainan Banana Genetics and Breeding, Haikou, China E-mail:
| | - H Shu
- Haikou Experimental Station, Chinese Academy of Tropical Agricultural Sciences, Haikou, China and Key Laboratory of Hainan Banana Genetics and Breeding, Haikou, China E-mail: ; Department of Biology, Zhengzhou University, Zhengzhou, China
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Zhu J, Simon A, Bossi A, Messai T, Ospina J, Li B, Shu H, De Crevoisier R. PO-0961: Estimation of a/þ ratio for late rectal toxicity from localized prostate cancer irradiation. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)31079-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Belcaro G, Shu H, Luzzi R, Dugall M, Ippolito E, Cesarone MR, Corsi M, Feragalli B. Improvement of common cold with Pycnogenol®: a Winter registry study. Panminerva Med 2014; 56:301-308. [PMID: 25424463] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
AIM This registry study aimed to evaluate the use of Pycnogenol® (pine bark extract), an anti-inflammatory, anti-oxidant and anti-edema natural compound, on symptoms of common cold. Main targets were the evaluation in otherwise healthy subjects of signs/symptoms, the reduction in days of disease, and the prevention of complications. METHODS All subjects used the "best management" for colds and one group added Pycnogenol® capsules (50 mg, bid/die) from day zero. The resulting registry groups were comparable. A total of 70 subjects used Pycnogenol® and 76 acted as controls. RESULTS The number of days with a perceived cold affecting the patients was reduced in the supplement group (3.1;0.4 days) in comparison with controls (4.2;0.2). Lost working days were significantly decreased in the supplement group (0.55;0.3 versus 0.67;0.3 in controls). The need to use any other compound (on demand basis; OTC products) to manage symptoms and the occurrence of any clinically significant complications were significantly lower in the Pycnogenol® group. The most frequent complications were the extension of the cold to a period longer than 4 days, a tracheal extension and a bronchial involvement. Pycnogenol® was significantly effective in reducing the number of complications. The daily evolution of the "pillar cold signs" indicates a significantly faster resolution in the supplement group. With supplementation the decrease in symptom scores appears to be significantly more important. Pycnogenol® supplementation appears to make regression faster for all symptoms in comparison with controls. CONCLUSION In this pilot registry, Pycnogenol® appears to decrease symptoms of cold and shorten its course also preventing some complications.
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Affiliation(s)
- G Belcaro
- Department of Biomedical Sciences Irvine3 Circulation Vascular Labs and San Val. Epidemiology Chieti‑Pescara University, Pescara, Italy -
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Zuo K, Bellanger JJ, Yang C, Shu H, Le Bouquin Jeannés R. Exploring neural directed interactions with transfer entropy based on an adaptive kernel density estimator. Annu Int Conf IEEE Eng Med Biol Soc 2013; 2013:4342-5. [PMID: 24110694 DOI: 10.1109/embc.2013.6610507] [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] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
This paper aims at estimating causal relationships between signals to detect flow propagation in autoregressive and physiological models. The main challenge of the ongoing work is to discover whether neural activity in a given structure of the brain influences activity in another area during epileptic seizures. This question refers to the concept of effective connectivity in neuroscience, i.e. to the identification of information flows and oriented propagation graphs. Past efforts to determine effective connectivity rooted to Wiener causality definition adapted in a practical form by Granger with autoregressive models. A number of studies argue against such a linear approach when nonlinear dynamics are suspected in the relationship between signals. Consequently, nonlinear nonparametric approaches, such as transfer entropy (TE), have been introduced to overcome linear methods limitations and promoted in many studies dealing with electrophysiological signals. Until now, even though many TE estimators have been developed, further improvement can be expected. In this paper, we investigate a new strategy by introducing an adaptive kernel density estimator to improve TE estimation.
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Kandula S, Saindane A, Prabhu R, Shu H, Curran W, Hanasoge S, Crocker I. Patterns of Presentation and Failure in Patients With Gliomatosis Cerebri Treated With Partial Brain Radiation Therapy. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.656] [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: 11/30/2022]
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Patel K, Prabhu R, Hadjipanayis C, Olson J, Oyesiku N, Curran W, Shu H, Crocker I. Intracranial Control for Adjuvant Whole Brain Radiation Therapy Versus Stereotactic Radiosurgery Alone for Resected Brain Metastases. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1498] [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: 11/24/2022]
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Schreibmann E, Crocker I, Shu H, Fox T. SU-E-J-199: An Image-Based Model of Glioblastoma Growth for Treatment Response Assessment. Med Phys 2013. [DOI: 10.1118/1.4814411] [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: 11/07/2022] Open
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Yue Q, Zhang L, Xu G, Shu H, Li P. Task-modulated activation and functional connectivity of the temporal and frontal areas during speech comprehension. Neuroscience 2013; 237:87-95. [DOI: 10.1016/j.neuroscience.2012.12.067] [Citation(s) in RCA: 22] [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: 09/11/2012] [Revised: 11/29/2012] [Accepted: 12/18/2012] [Indexed: 10/27/2022]
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Zhu J, Simon A, Haigron P, Lafond C, Ospina J, Acosta O, Drean G, Le Prise E, Shu H, De Crevoisier R. PO-0840: Use of equivalent uniform dose objectives in inverse planning to reduce bladder toxicity in high dose prostate IMRT. Radiother Oncol 2013. [DOI: 10.1016/s0167-8140(15)33146-7] [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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Abstract
Myofibroblasts are special cells with the features of both fibroblasts and smooth muscle cells, which are one of the most important cells in tumor stroma. The role of myofibroblasts in tumor stroma remains disputable. Some authors suggested that myofibroblasts can facilitate tumor progress, and another considered that myofibroblasts could prevent tumor cells diffusing. Bronchioloalveolar carcinoma (BAC) is a kind of adenocarcinoma in situ. With the destruction of the alveolar framework by tumor growth, BAC develops into mixed BAC and invasive adenocarcinoma, which is a natural model of transformation from carcinoma in situ to invasive carcinoma. In this study, the expression of myofibroblasts in BAC, mix-BAC and invasive adenocarcinoma was examined by immunohistochemical staining of surgical specimens from 102 patients. The results showed that positive expression of myofibroblasts in pure BAC (2/15, 13.33%) group was lower than in mix-BAC (17/38, 44.74%) and invasive adenocarcinoma (29/49, 59.18%) respectively, (p<0.05, p<0.01). In addition, myofibroblast positive expression was associated with lymph node metastasis, high stage, high grade, vascular invasion and shortened survival time in patients with lung adenocarcinoma. These data suggest that myofibroblasts are likely to facilitate the invasion and metastasis of the lung adenocarcinoma, and can be used as a prognostic marker. Myofibroblasts may become even a new target for treatment.
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Affiliation(s)
- H Shu
- Department of pathology, Shengjing Hospital of China Medical University, Shenyang Liaoning, 110004, PR China.
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Wang H, Teng Y, Xie Y, Wang B, Leng Y, Shu H, Deng F. Characterization of the carbonic anhydrases 15b expressed in PGCs during early zebrafish development. Theriogenology 2012; 79:443-52. [PMID: 23174774 DOI: 10.1016/j.theriogenology.2012.10.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2012] [Revised: 10/22/2012] [Accepted: 10/22/2012] [Indexed: 11/25/2022]
Abstract
The main function of carbonic anhydrases is to regulate acid-base balance. In the present study, the zebrafish CA15b sequence was identified from the National Center for Biotechnology Information database (accession No. NM_213182). The 1716 base pair full-length cDNA of CA15b was obtained by 3' and 5'-rapid amplification of cDNA ends analysis. It was expressed (reverse transcription polymerase chain reaction and Western blot analysis) in the ovary, heart, brain, and muscle, but not in testis or liver. Based on in situ hybridization, CA15b mRNA was transcribed in the ooplasm of stage I to stage II oocytes, in the cortex of stage III oocytes, and along the periphery of stage IV oocytes. Furthermore, this protein was localized (immunohistochemistry) in the plasma membrane of oocytes. Based on whole-mount in situ hybridization, CA15b mRNA was present in every blastomere of embryos from one-cell to blastula stages. Strong signals of the transcripts were present along cleavage furrows of two- and eight-cell stage embryos, which subsequently condensed into four clusters of cells during the blastula stage. During subsequent stages, the four groups of CA15b-expressing cells appeared to move toward the dorsal side of the embryos, clustered into two groups on either side of the midline, and remained visible as they migrated toward the region of the gonad in embryos at 24 hours postfertilization. Expression patterns of CA15b were similar to those of vasa, a marker of primordial germ cells. Thus, we hypothesized that CA15b might be necessary for development of primordial germ cells and female germ cells in zebrafish.
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Affiliation(s)
- H Wang
- The Laboratory of Molecular Genetics and Developmental Biology, College of Life Sciences, Wuhan University, Wuhan, Hubei, China
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Johnson A, Ali A, Dhabbaan A, Jiang X, Shu H, Curran W, Crocker I. Short Course Radiation Therapy for Acoustic Neuromas. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.721] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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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Yang G, Toumoulin C, Coatrieux JL, Shu H, Luo L, Boulmier D. A 3D Static Heart Model From a MSCT Data Set. Conf Proc IEEE Eng Med Biol Soc 2012; 2005:5499-502. [PMID: 17281498 DOI: 10.1109/iembs.2005.1615728] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Dynamic Computed Tomography (CT) imaging aims to access the kinetics of the moving organs. In cardiac imaging, the interest lies in the possibility of obtaining anatomic and functional information on the heart and the coronaries during the same examination. However, segmentation, reconstruction and registration algorithms need to be developed for diagnostic purposes. We propose thus to built a 3D heart model from Multi-slice Spiral Computed Tomography (MSCT) dynamic sequences to facilitate the evaluation of these algorithms. The model building relies on semi-automatic segmentation techniques based on deformable models such as Fast Marching and active contours. Shape-based interpolation and Marching Cube algorithms are then used for the 3D surface reconstruction.
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Affiliation(s)
- G Yang
- Laboratory of Image Science and Technology, Southeast University, Nanjing, 210096, P.R. China; Laboratoire Traitement du Signal et de l'Image-INSERM, Université de Rennes 1, Rennes, 35042, France
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Schreibmann E, Crocker I, Shu H, Curran W, Fox T. SU-E-J-189: The Kullback-Leiber Divergence for Quantifying Changes in Radiotherapy Treatment Response. Med Phys 2012; 39:3696. [DOI: 10.1118/1.4735030] [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: 11/07/2022] Open
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Schreibmann E, Crocker I, Shu H, Curran W, Fox T. SU-E-J-191: A Multivariate Framework for N-Tissue Classification in Treatment Assessment of Glioblastomas. Med Phys 2012; 39:3696. [PMID: 28519041 DOI: 10.1118/1.4735032] [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] [Indexed: 11/07/2022] Open
Abstract
PURPOSE Glioblastoma is the most common primary brain tumor in adults and is rapidly fatal. Treatment monitoring of these patients has increased awareness that many patients have new areas of contrast enhancement without progressive clinical signs and symptoms. Although the enhancing areas mimic tumor progression, the lesions result from treatment effects and subsequently stabilize or improve without further treatment and are not correlated with poorer outcomes. This phenomenon has been termed pseudoprogression and is hypothesized to occur secondarily to edema and vessel permeability in the tumor area as a result of the combined effects of radiation and chemotherapy. Since the new enhancing lesions of pseudoprogression are indistinguishable from true disease progression, there is a need for a predictive model to distinguish the two phenomena. METHOD We developed a classification algorithm that combines perfusion and diffusion MRI imaging to effectively partition the cases as one exhibiting true or pseudo progression based on a vector of features containing T1, rCBV and ADC imaging. The multi-sequence classification algorithm uses an expectation maximization (EM) algorithm that learns from training cases with known clinical outcome to assigns each voxel to a type of tissue. RESULTS A training set of 20 where the clinical outcome is known from biopsy or from long-term follow-up was used by EM algorithm to model typical imaging values within tissue of pseudo, tumor, edema, necrosis, vessels or brain anatomy to construct a database of expected values for each tissue type. When presented with a new case, the algorithm automatically classifies voxels by their geographical proximities and Mahalanobis distance to the pre-sampled values. CONCLUSION Usage of advanced classification techniques allows automated labeling of voxels into normal, pseudoprogression or tumoral tissue types. The technique allows for early detection of pseudo progression to spare patients from unnecessary surgery or toxic chemotherapy.
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Affiliation(s)
| | - I Crocker
- Emory University School of Medicine, Atlanta, GA
| | - H Shu
- Emory University School of Medicine, Atlanta, GA
| | - W Curran
- Emory University School of Medicine, Atlanta, GA
| | - T Fox
- Emory University School of Medicine, Atlanta, GA
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Huang H, Coatrieux G, Shu H, Luo L, Roux C. Contrôle passif d’intégrité en imagerie médicale sur la base des caractéristiques HOW (High Order Wavelet Statistics) et IQM (Image Quality Measures). Ing Rech Biomed 2011. [DOI: 10.1016/j.irbm.2011.09.002] [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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Prabhu R, Hadjipanayis C, Shu H, Hall W, Raore B, Olson J, Curran W, Oyesiku N, Crocker I. Current Dosing Paradigm For Stereotactic Radiosurgery Alone Following Surgical Resection of Brain Metastases Needs To Be Optimized For Improved Local Control. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.1921] [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: 11/25/2022]
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Shu H, Yoon Y, Hong S, Gao H, Xu K, Liang Z, Hao C, Rojas M, Shim H. CXCR4/SDF-1 Axis Blockade Reduces Radiation-induced Pulmonary Fibrosis. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.348] [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: 10/16/2022]
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Hall W, Ali A, Crocker I, Landry J, Shu H, Curran W. Comparing CNS and Extra-CNS Hemangiopericytomas in the Surveillance, Epidemiology, and End Results Program (SEER): An Analysis of 655 Patients. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.246] [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: 11/30/2022]
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Shu H, Gao H, Xu K. Caution in using Celecoxib: Induction of VEGF and Angiogenesis by This COX-2 Inhibitor. Int J Radiat Oncol Biol Phys 2010. [DOI: 10.1016/j.ijrobp.2010.07.1457] [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: 11/27/2022]
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Westhoff C, Reape K, Shu H. Impact of body weight on observed pregnancy rates with a low-dose estrogen, 91-day extended regimen oral contraceptive. Contraception 2009. [DOI: 10.1016/j.contraception.2009.05.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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An K, Shu H, Huang W, Huang X, Xu M, Yang L, Xu K, Wang C. Effects of propofol on pulmonary inflammatory response and dysfunction induced by cardiopulmonary bypass*. Anaesthesia 2008; 63:1187-92. [DOI: 10.1111/j.1365-2044.2008.05627.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [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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Crocker I, Fox T, Shu H, Waller A, Schreibmann E. Manual Radiographic (KV) and Cone Beam CT (CBCT) Matching for Spinal Radiosurgery: Not Accurate Enough. Int J Radiat Oncol Biol Phys 2008. [DOI: 10.1016/j.ijrobp.2008.06.676] [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: 11/30/2022]
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Yang G, Bousse A, Toumoulin C, Shu H. A multiscale tracking algorithm for the coronary extraction in MSCT angiography. Conf Proc IEEE Eng Med Biol Soc 2008; 2006:3066-9. [PMID: 17946544 DOI: 10.1109/iembs.2006.260712] [Citation(s) in RCA: 15] [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] [Indexed: 11/07/2022]
Abstract
This paper deals with the extraction of the coronary network on dynamic volume sequences, acquired in multi-slice spiral computed tomography (MSCT). The proposed approach makes use of a tracking algorithm of the vascular structure, combining a 3D geometric moment operator with a multiscale Hessian filter to estimate the vessel central axis location, its local diameter and orientation. The method performs at the same time, a bifurcation detection to reconstitute the structure of the coronary network. The mean computation time to extract a coronary network is about 3 minutes using a P4-2.4G PC. Preliminary encouraging results are presented on one volume of a sequence.
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Affiliation(s)
- G Yang
- Lab. of Image Sci. & Technol., Southeast Univ., Nanjing, PR China
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Xie L, Hu Y, Luo L, Shu H. Wavelet domain Bayesian method for high noise level PET image reconstruction. Annu Int Conf IEEE Eng Med Biol Soc 2008; 2008:3008-3011. [PMID: 19163339 DOI: 10.1109/iembs.2008.4649836] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
In this paper, a new maximum a posterior(MAP) method for PET image reconstruction defined in wavelet domain is proposed. Compared to the conventional MAP methods with Markov Random Field (MRF) prior models, the proposed method, named WD-MAP method, has better performance in characterize both local and global feature of reconstructed image due to the wavelet transform. Wavelet packet decomposition strategy is applied to further improve the reconstruction quality. The convergence speed of WD-MAP method is accelerated by adopting conjugate gradient(CG) technique. Simulated experiment suggests that the proposed method offers competitive performance in PET image reconstruction.
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Affiliation(s)
- L Xie
- Laboratory of Image Science and Technology Southeast University, Nanjing, China
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Kim EJ, Rabinovici GD, Seeley WW, Halabi C, Shu H, Weiner MW, DeArmond SJ, Trojanowski JQ, Gorno-Tempini ML, Miller BL, Rosen HJ. Patterns of MRI atrophy in tau positive and ubiquitin positive frontotemporal lobar degeneration. J Neurol Neurosurg Psychiatry 2007; 78:1375-8. [PMID: 17615169 PMCID: PMC2095621 DOI: 10.1136/jnnp.2006.114231] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
We applied optimised voxel based morphometry (VBM) to brain MRIs from autopsy proven cases of tau positive frontotemporal lobar degeneration (FTLD-T, n = 6), ubiquitin and TDP-43 positive/tau negative FTLD (FTLD-U, n = 8) and cognitively normal controls (n = 61). The analysis revealed that FTLD-T and FTLD-U both show atrophy in the frontal cortex and striatum, but striatal atrophy is more severe in FTLD-T. Manual region of interest tracing of caudate and putamen volumes confirmed the VBM findings. These anatomical differences may help distinguish between FTLD spectrum pathological subtypes in vivo.
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Affiliation(s)
- E J Kim
- Memory and Aging Center, and Department of Neurology, University of California, San Francisco, San Francisco, California 94117, USA
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Yang G, Bousse A, Toumoulin C, Shu H. Simulation environment for the evaluation of 3D coronary tree reconstruction algorithms in rotational angiography. ACTA ACUST UNITED AC 2007; 2007:4484-7. [PMID: 18003001 DOI: 10.1109/iembs.2007.4353335] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
We present a preliminary version of a simulation environment to evaluate the 3D reconstruction algorithms of the coronary arteries in rotational angiography. It includes the construction of a 3D dynamic model of the coronary tree from patient data, the modeling of the rotational angiography acquisition system to simulate different acquisition and gating strategies and the calculation of radiographic projections of the 3D model of coronary tree throughout several cardiac cycles.
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Affiliation(s)
- G Yang
- Laboratory of Image Science and Technology, Southeast University, Nanjing, 210096, PR China
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