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Ahlers-Dannen KE, Yang J, Spicer MM, Fu D, DeVore A, Fisher RA. A splice acceptor variant in RGS6 associated with intellectual disability, microcephaly, and cataracts disproportionately promotes expression of a subset of RGS6 isoforms. J Hum Genet 2024; 69:145-152. [PMID: 38332109 DOI: 10.1038/s10038-024-01220-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 01/11/2024] [Accepted: 01/18/2024] [Indexed: 02/10/2024]
Abstract
Intellectual disability (ID) is associated with an increased risk of developing psychiatric disorders, suggesting a common underlying genetic factor. Importantly, altered signaling and/or expression of regulator of G protein signaling 6 (RGS6) is associated with ID and numerous psychiatric disorders. RGS6 is highly conserved and undergoes complex alternative mRNA splicing producing ~36 protein isoforms with high sequence similarity historically necessitating a global approach in functional studies. However, our recent analysis in mice revealed RGS6 is most highly expressed in CNS with RGS6L(+GGL) isoforms predominating. A previously reported genetic variant in intron 17 of RGS6 (c.1369-1G>C), associated with ID, may provide further clues into RGS6L(+GGL) isoform functional delineation. This variant was predicted to alter a highly conserved canonical 3' acceptor site creating an alternative branch point within exon 18 (included in a subset of RGS6L(+GGL) transcripts) and a frameshift forming an early stop codon. We previously identified this alternative splice site and demonstrated its use generates RGS6Lζ(+GGL) isoforms. Here, we show that the c.1369-1G>C variant disrupts the canonical, preferred (>90%) intron 17 splice site and leads to the exclusive use of the alternate exon 18 splice site, inducing disproportionate expression of a subset of isoforms, particularly RGS6Lζ(+GGL). Furthermore, RGS6 global knockout mice do not exhibit ID. Thus, ID caused by the c.1369-1G>C variant likely results from altered RGS6 isoform expression, rather than RGS6 isoform loss. In summary, these studies highlight the importance of proper RGS6 splicing and identify a previously unrecognized role of G protein signaling in ID.
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Affiliation(s)
- K E Ahlers-Dannen
- Department of Neuroscience and Pharmacology, The Roy J and Lucille A Carver College of Medicine, University of Iowa, Iowa City, IA, 52242, USA
| | - J Yang
- Department of Neuroscience and Pharmacology, The Roy J and Lucille A Carver College of Medicine, University of Iowa, Iowa City, IA, 52242, USA
| | - M M Spicer
- Department of Neuroscience and Pharmacology, The Roy J and Lucille A Carver College of Medicine, University of Iowa, Iowa City, IA, 52242, USA
| | - D Fu
- Department of Neuroscience and Pharmacology, The Roy J and Lucille A Carver College of Medicine, University of Iowa, Iowa City, IA, 52242, USA
| | - A DeVore
- Department of Neuroscience and Pharmacology, The Roy J and Lucille A Carver College of Medicine, University of Iowa, Iowa City, IA, 52242, USA
| | - R A Fisher
- Department of Neuroscience and Pharmacology, The Roy J and Lucille A Carver College of Medicine, University of Iowa, Iowa City, IA, 52242, USA.
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Huang S, Fu D, Wan Z, Huang Z, Li M, Li H, Chong T. DKK1 Ameliorates Myofibroblast Differentiation in Urethral Fibrosis in Vivo and in Vitro by Regulating the Canonical Wnt Pathway. Int J Med Sci 2023; 20:1631-1643. [PMID: 37859694 PMCID: PMC10583189 DOI: 10.7150/ijms.79827] [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] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 02/08/2023] [Indexed: 10/21/2023] Open
Abstract
Background: Urethral stricture is a common disorder of the lower urinary tract in men. A complex network of pathways and interactions are involved in the pathogenesis of urethral fibrosis. However, the mechanisms underlying urethral fibrosis remain poorly understood. Objectives: To investigate the critical role of the canonical Wnt pathway in development of urethral fibrosis and explore DKK1, the endogenous inhibitor of Wnt pathway, as a potential target to prevent urethral fibrosis in vitro and in vivo. Methods: Urethral fibrosis tissue derived from patients and rat models were harvested to assess the activation of the canonical Wnt pathway by using western blot, qRT-PCR and immunohistochemistryWe performed histological staining, western blot, qRT-PCR and immunohistochemistry to examine the effects of DKK1 treatment on in vivo rat urethral fibrosis models. In vitro, human urethral fibroblasts (HUFs) were cultured to examine the effects of DKK1 in TGFβ1-induced HUFs by CCK-8 assay, hydroxyproline assay, flow cytometry, cell migration assay, western blot, qRT-PCR and immunofluorescence. Results: The key components of Wnt signaling were upregulated in urethral fibrosis tissue derived from patients and rat models while DKK 1 was downregulated. DKK1 ameliorated TGFβ1-induced urethral fibrosis in rats. TGFβ1 induced myofibroblast differentiation by upregulating collagen I, collagen III, α-SMA, β-catenin and p-GSK-3β, while DKK1 was decreased. DKK1 significantly inhibited cell proliferation, collagen content, cell migration and promoted cell apoptosis in TGFβ1-induced HUFs. DKK1 significantly suppressed myofibroblast differentiation of TGFβ1-induced HUFs by downregulating collagen I, collagen III, α-SMA, β-catenin and p-GSK-3β with a mechanism independent of Smad2/3. Conclusions: Our study demonstrated that canonical Wnt pathway may be an essential mechanism underlying the pathogenesis of urethral fibrosis and explored the potential role of DKK1 participation in the development of urethral fibrosis.
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Affiliation(s)
- Shanlong Huang
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 Xiwu Road, Xi'an, China
| | - Delai Fu
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 Xiwu Road, Xi'an, China
| | - Ziyan Wan
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 Xiwu Road, Xi'an, China
| | - Zhixin Huang
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 Xiwu Road, Xi'an, China
| | - Min Li
- Department of Pediatrics, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 Xiwu Road, Xi'an, China
| | - Hecheng Li
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 Xiwu Road, Xi'an, China
| | - Tie Chong
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 Xiwu Road, Xi'an, China
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Li H, Wang L, Li H, Zhang P, Li Z, Xue L, Wang Z, Fu D, Chen Q, Luo Q, Chong T, Wang Z. Analysis of Risk Factors for Recurrence after Transurethral Resection of Bladder Tumor in Patients with Non-Muscle Invasive Bladder Cancer: 2-Year Follow-Up Outcomes. Oncology 2023; 102:337-342. [PMID: 37647883 PMCID: PMC10994582 DOI: 10.1159/000533410] [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: 05/10/2023] [Accepted: 07/29/2023] [Indexed: 09/01/2023]
Abstract
INTRODUCTION The aim was to investigate the risk factors for recurrence after transurethral resection of bladder tumor (TURBT) in patients with non-muscle invasive bladder cancer (NMIBC) and to provide a basis for clinical prevention of recurrence of NMIBC. METHODS From January 2012 to December 2020, 592 patients with NMIBC who underwent TURBT attending the Second Affiliated Hospital of Xi'an Jiaotong University were retrospectively included in this study. Patients were divided into relapse and relapse-free groups according to whether relapse occurred within 2 years. Ultimately, 72 patients were included in the relapse group and 350 patients were included in the relapse-free group. Observation indicators included age, sex, smoking, underlying disease (hypertension, diabetes, coronary heart disease), two or more lesions, tumor size, hematuria, pathology grading (low, medium, high), staging (Ta, T1), muscular invasion in initial pathology, tumor base (sessile, pedunculated), use of intravesical drug (pirarubicin, bacillus Calmette-Guerin [BCG], mitomycin, hydroxycamptothecin, gemcitabine). RESULTS In this study, the 2-year recurrence rate of NMIBC patients after TURBT was 17.06%. There were significant differences in comparison of pirarubicin, BCG, and mitomycin treatment between the two groups (p < 0.05). To avoid missing risk factors for recurrence, factors with p < 0.1 were analyzed. The results of univariate logistic regression analysis showed that NMIBC patients with BCG treatment (OR = 5.088, 95% CI = 1.444-17.73, p = 0.012), high pathology grading (OR = 0.415, 95% CI = 0.197-0.880, p = 0.023), T1 stage (OR = 2.097, 95% CI = 0.996-4.618, p = 0.059), mitomycin treatment (OR = 5.029, 95% CI = 1.149-21.77, p = 0.031), and pirarubicin treatment (OR = 1.794, 95% CI = 1.079-3.030, p = 0.024) had significantly higher risk of recurrence within 2 years after TURBT. The results of multivariate logistic regression analysis showed that NMIBC patients with high pathology grading (OR = 0.4030, 95% CI = 0.1702-0.8426, p = 0.0241), pirarubicin treatment (OR = 1.961, 95% CI = 1.159-3.348, p = 0.0125), and BCG treatment (OR = 6.201, 95% CI = 1.275-29.73, p = 0.0190) had significantly higher risk of recurrence within 2 years after TURBT. CONCLUSION Our study highlights the importance of postoperative surveillance and individualized treatment for patients with NMIBC. Our findings show that high pathology grading, pirarubicin treatment, and BCG treatment are independent risk factors for recurrence after TURBT in patients with NMIBC. However, caution is warranted when interpreting our findings due to the small sample size and the need for further research to confirm the negative impact of mitomycin and BCG on recurrence rates.
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Affiliation(s)
- Hecheng Li
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Li Wang
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Hongliang Li
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Peng Zhang
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Zhaolun Li
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Li Xue
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Zhenlong Wang
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Delai Fu
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Qi Chen
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Qidong Luo
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Tie Chong
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Ziming Wang
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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Krech R, Peters S, Kroemer H, Fu D, Giuliani R, Sehouli J, Ilbawi A, Prasad V, Ullrich A. Tobacco cessation and the role of ESMO and medical oncologists: addressing the specific needs of cancer patients in times of the COVID-19 pandemic. ESMO Open 2023; 8:101579. [PMID: 37393095 PMCID: PMC10229195 DOI: 10.1016/j.esmoop.2023.101579] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 04/15/2023] [Indexed: 07/03/2023] Open
Affiliation(s)
- R Krech
- Health Promotion Department, World Health Organization, Geneva, Switzerland
| | - S Peters
- Department of Oncology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland; European Society for Medical Oncology (ESMO), Lugano, Switzerland
| | - H Kroemer
- Executive Board Charité - Universitätmedizin, Berlin, Germany
| | - D Fu
- Health Promotion Department, World Health Organization, Geneva, Switzerland.
| | - R Giuliani
- European Society for Medical Oncology (ESMO), Lugano, Switzerland; Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - J Sehouli
- Department of Gynaecology with Center for Oncological Surgery Charité - Universitätsmedizin Berlin, Germany
| | - A Ilbawi
- Department of Noncommunicable Diseases, World Health Organization, Geneva, Switzerland
| | - V Prasad
- Health Promotion Department, World Health Organization, Geneva, Switzerland
| | - A Ullrich
- Department of Gynaecology with Center for Oncological Surgery Charité - Universitätsmedizin Berlin, Germany
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Tian J, Fu D, Liu Y, Guan Y, Miao S, Xue Y, Chen K, Huang S, Zhang Y, Xue L, Chong T, Yang P. Rectifying disorder of extracellular matrix to suppress urethral stricture by protein nanofilm-controlled drug delivery from urinary catheter. Nat Commun 2023; 14:2816. [PMID: 37198161 DOI: 10.1038/s41467-023-38282-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Accepted: 04/24/2023] [Indexed: 05/19/2023] Open
Abstract
Urethral stricture secondary to urethral injury, afflicting both patients and urologists, is initiated by excessive deposition of extracellular matrix in the submucosal and periurethral tissues. Although various anti-fibrotic drugs have been applied to urethral stricture by irrigation or submucosal injection, their clinical feasibility and effectiveness are limited. Here, to target the pathological state of the extracellular matrix, we design a protein-based nanofilm-controlled drug delivery system and assemble it on the catheter. This approach, which integrates excellent anti-biofilm properties with stable and controlled drug delivery for tens of days in one step, ensures optimal efficacy and negligible side effects while preventing biofilm-related infections. In a rabbit model of urethral injury, the anti-fibrotic catheter maintains extracellular matrix homeostasis by reducing fibroblast-derived collagen production and enhancing metalloproteinase 1-induced collagen degradation, resulting in a greater improvement in lumen stenosis than other topical therapies for urethral stricture prevention. Such facilely fabricated biocompatible coating with antibacterial contamination and sustained-drug-release functionality could not only benefit populations at high risk of urethral stricture but also serve as an advanced paradigm for a range of biomedical applications.
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Affiliation(s)
- Juanhua Tian
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, West Five Road, No. 157, 710004, Xi'an, China
| | - Delai Fu
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, West Five Road, No. 157, 710004, Xi'an, China
| | - Yongchun Liu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, 710119, Xi'an, China
| | - Yibing Guan
- Department of Urological Surgery, The First Affiliated Hospital of Zhengzhou University, 450052, Zhengzhou, Henan Province, China
| | - Shuting Miao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, 710119, Xi'an, China
| | - Yuquan Xue
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, West Five Road, No. 157, 710004, Xi'an, China
| | - Ke Chen
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University (BUAA), 100191, Beijing, China
| | - Shanlong Huang
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, West Five Road, No. 157, 710004, Xi'an, China
| | - Yanfeng Zhang
- School of Chemistry, Xi'an Jiaotong University, 710049, Xi'an, China
| | - Li Xue
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, West Five Road, No. 157, 710004, Xi'an, China
| | - Tie Chong
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, West Five Road, No. 157, 710004, Xi'an, China.
| | - Peng Yang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, 710119, Xi'an, China.
- International Joint Research Center on Functional Fiber and Soft Smart Textile, School of Chemistry and Chemical Engineering, Shaanxi Normal University, 710119, Xi'an, China.
- Xi'an Key Laboratory of Polymeric Soft Matter, School of Chemistry and Chemical Engineering, Shaanxi Normal University, 710119, Xi'an, China.
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Wang L, Huang S, Zhang P, Li H, Li Z, Xue L, Wang Z, Chen Q, Fu D, Luo Q, Li H. The application of gemcitabine and pirarubicin in patients with non-muscle invasive bladder cancer. J Cancer Res Clin Oncol 2023:10.1007/s00432-023-04739-6. [PMID: 37160625 DOI: 10.1007/s00432-023-04739-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 04/01/2023] [Indexed: 05/11/2023]
Abstract
OBJECTIVE To investigate the value of gemcitabine and pirarubicin in patients with non-muscle-invasive bladder cancer (NMIBC). METHODS 405 patients with non-muscle invasive bladder cancer admitted to our hospital from January 2012 to December 2020 who underwent transurethral bladder tumor electronic resection were studied. 177 patients were treated with gemcitabine (Gemcitabine group) and 228 patients were treated with pirarubicin (Pirarubicin group) after surgery. The efficacy and adverse effects of the two groups were observed and the patients were followed up. RESULTS No differences were found when comparing age, gender, smoking, bladder mass, number of masses, hypertension, diabetes, coronary artery disease, hematuria and tumor diameter between the 2 groups (P > 0.05). In the Gemcitabine group, bladder irritation signs, meatus hematuria, fever, nausea and vomiting were lower than those in the Pirarubicin group (P < 0.05). The recurrence rates were 6.21% and 12.28% at 1 year, 11.86% and 23.68% at 2 years, 15.82% and 25.88% at 3 years in the Gemcitabine and Pirarubicin groups respectively, with the Gemcitabine group having a significantly lower recurrence rate than the Pirarubicin group (P < 0.05). The tumor recurrence-free survival rate for 5 years of gemcitabine was significantly higher than that of the Pirarubicin group (P < 0.05). CONCLUSION Gemcitabine and pirarubicin are both effective in treating patients with non-muscle invasive bladder cancer, with gemcitabine having a lower incidence of adverse reactions, a higher safety rating, a lower recurrence rate and an improved survival outcome.
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Affiliation(s)
- Li Wang
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157 Xiwu Road, Xi'an, 710004, Shaanxi, China
| | - Shanlong Huang
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157 Xiwu Road, Xi'an, 710004, Shaanxi, China
| | - Peng Zhang
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157 Xiwu Road, Xi'an, 710004, Shaanxi, China
| | - Hongliang Li
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157 Xiwu Road, Xi'an, 710004, Shaanxi, China
| | - Zhaolun Li
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157 Xiwu Road, Xi'an, 710004, Shaanxi, China
| | - Li Xue
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157 Xiwu Road, Xi'an, 710004, Shaanxi, China
| | - Zhenlong Wang
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157 Xiwu Road, Xi'an, 710004, Shaanxi, China
| | - Qi Chen
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157 Xiwu Road, Xi'an, 710004, Shaanxi, China
| | - Delai Fu
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157 Xiwu Road, Xi'an, 710004, Shaanxi, China
| | - Qidong Luo
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157 Xiwu Road, Xi'an, 710004, Shaanxi, China
| | - Hecheng Li
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157 Xiwu Road, Xi'an, 710004, Shaanxi, China.
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Liu YY, Li ZX, Tan ZJ, Fang W, Tan HM, Fu D, Huang ZG, Liu JW, Liu T, He GH, Zhu S, Ma WJ. [A time-series study on the association of ambient temperature with daily outpatient visits of eczema in Huizhou city]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:1423-1428. [PMID: 36274608 DOI: 10.3760/cma.j.cn112150-20220402-00316] [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: 06/16/2023]
Abstract
Objective: To explore the impact of environmental temperature exposure on eczema visits. Methods: Eczema clinic data from January 1, 2016 to December 31, 2019 were collected from the Huizhou Dermatology Hospital, and data on meteorological factors (average daily temperature and relative humidity) for the same period were derived from 86 meteorological stations of the Guangdong Provincial Climate Center. A distributed lag nonlinear model (DLNM) was used to assess the lagged effect of environmental temperature exposure on eczema, and a natural smooth spline function was used to control the nonlinear confounding of humidity. Results: There were 254 053 eczema outpatient visits at the Huizhou Dermatology Hospital within four years, with an average of 173.89 visits per day. The relationship between daily average temperature and the number of visits was non-linear (U shape). The risk of eczema increased by 2.20% (1.19%-3.21%) for every 1 ℃ decrease for the low temperature, and increased by 2.35% (1.24%-3.5%) for every 1 ℃ increase for the high temperature. The effect of high temperature was greater than that of low temperature. In all cases, 1.60% (0.44%-2.68%) of eczema outpatient visits were attributed to low temperature and the attributable number was 4 065 (1 128-6 798), while 6.33% (1.40%-10.87%) of eczema outpatient visits were due to high temperature and the attributable number was 16 082 (3 557-27 616). Conclusion: Both high temperature and low temperature are associated with increased risk of eczema.
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Affiliation(s)
- Y Y Liu
- School of Medicine, Jinan University, Guangzhou 510632, China
| | - Z X Li
- School of Medicine, Jinan University, Guangzhou 510632, China
| | - Z J Tan
- School of Medicine, Jinan University, Guangzhou 510632, China
| | - W Fang
- School of Medicine, Jinan University, Guangzhou 510632, China
| | - H M Tan
- School of Medicine, Jinan University, Guangzhou 510632, China
| | - D Fu
- School of Medicine, Jinan University, Guangzhou 510632, China
| | - Z G Huang
- School of Medicine, Jinan University, Guangzhou 510632, China
| | - J W Liu
- Huizhou Dermatology Hospital, Huizhou 516008, China
| | - T Liu
- School of Medicine, Jinan University, Guangzhou 510632, China
| | - G H He
- School of Medicine, Jinan University, Guangzhou 510632, China
| | - S Zhu
- School of Medicine, Jinan University, Guangzhou 510632, China
| | - W J Ma
- School of Medicine, Jinan University, Guangzhou 510632, China
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Deng XX, Zhang W, Fu D, Fu B. Renal Pseudoaneurysms after Flexible Ureteroscopy and Holmium Laser Lithotripsy: A Case Report. Front Surg 2022; 9:896548. [PMID: 36034371 PMCID: PMC9406514 DOI: 10.3389/fsurg.2022.896548] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 04/27/2022] [Indexed: 11/17/2022] Open
Abstract
Background Flexible ureteroscopy (FURS) and holmium laser lithotripsy is considered one of the most minimally invasive and safe surgical methods for the treatment of renal calculi. Renal pseudoaneurysm is a rare complication after FURS holmium laser lithotripsy. We report a case of renal pseudoaneurysm after FURS and holmium laser lithotripsy and review the relevant literature to analyze the possible etiology and summarize the treatment. Case presentation A 29-year-old male with a 2-year history of diabetes was admitted to the hospital because of right back pain for 5 days. A doppler ultrasound demonstrated bilateral renal calculi with bilateral mild hydronephrosis. The patient underwent one-stage right FURS and holmium laser lithotripsy and bilateral ureteral stent implantation. The urine was clear on the second day after the operation, and he was discharged from the hospital. Due to severe gross hematuria, he had to be hospitalized 28 days after the operation. A CT scan showed multiple blood clots in the right renal pelvis and bladder. An emergency blood transfusion and removal of the bladder blood clots and bilateral double J tubes were performed. His urine was clear for one week, and he was discharged from the hospital. He was hospitalized again 47 days after the operation because of fever and hematuria. A CT scan demonstrated blood clots in the bladder and right renal pelvis. Angiography showed a pseudoaneurysm in a small branch of the right renal artery, and hematuria stopped after selective renal artery embolization with microcoils. Conclusion FURS and holmium laser lithotripsy is safe, but we should be aware of the possibility of renal artery pseudoaneurysms (RAP). Through careful operation during the surgery, avoiding kidney injury, reducing intrarenal pressure and controlling the time of operation may prevent the occurrence of this complication. Vascular embolization is the first choice for the treatment of pseudoaneurysms.
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Affiliation(s)
- Xin-xi Deng
- Department of Urology, Jiu Jiang NO.1 People’s Hospital, Jiujiang, China
- Department of Urology, The First Affiliated Hospital of Nanchang University; Jiangxi Institute of Urology, Nanchang, China
| | - Wensheng Zhang
- Department of Urology, Jiu Jiang NO.1 People’s Hospital, Jiujiang, China
| | - Delai Fu
- Department of Urology, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
- Correspondence: Bin Fu Delai Fu
| | - Bin Fu
- Department of Urology, The First Affiliated Hospital of Nanchang University; Jiangxi Institute of Urology, Nanchang, China
- Correspondence: Bin Fu Delai Fu
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Zhao WL, Zhang MC, Fu D. [How I diagnose and treat diffuse large B cell lymphoma]. Zhonghua Xue Ye Xue Za Zhi 2021; 42:978-984. [PMID: 35045667 PMCID: PMC8770886 DOI: 10.3760/cma.j.issn.0253-2727.2021.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Indexed: 11/16/2022]
Affiliation(s)
- W L Zhao
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - M C Zhang
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - D Fu
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
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Huang S, Fu D, Wan Z, Li M, Li H, Chong T. Effects of a gamma-secretase inhibitor of notch signalling on transforming growth factor β1-induced urethral fibrosis. J Cell Mol Med 2021; 25:8796-8808. [PMID: 34363303 PMCID: PMC8435429 DOI: 10.1111/jcmm.16837] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 07/10/2021] [Accepted: 07/24/2021] [Indexed: 11/30/2022] Open
Abstract
Urethral stricture (US) is a common disorder of the lower urinary tract in men caused by fibrosis. The recurrence rate of US is high; however, there are no effective therapies to prevent or treat urethral fibrosis. The pathogenesis of urethral fibrosis involves myofibroblast activation and excessive extracellular matrix (ECM) deposition. The molecular mechanisms underlying this pathological activation are not completely understood. It has been demonstrated that Notch signalling contributes to the development of fibrosis and inflammation. However, whether this contributes to urethral fibrosis remains unclear. In this study, activation of Notch signalling was observed in patients with US. Additionally, it was noted that activation of Notch signalling promoted ECM production and myofibroblast activation in human urethral scar fibroblasts (HUSFs) treated with transforming growth factor (TGF) β1. However, the Notch inhibitor N‐[N‐(3,5‐difluorophenacetyl)‐L‐alanyl]‐S‐phenylglycine t‐butyl ester (DAPT) suppressed activation of Notch signalling as well as proliferation and migration of the TGFβ1‐treated HUSFs. Additionally, DAPT ameliorated TGFβ1‐induced urethral fibrosis in Sprague Dawley rats by suppressing ECM production, myofibroblast activation and the TGFβ signalling pathway. These findings demonstrate that Notch signalling may be a promising and potential target in the prevention or treatment of urethral fibrosis.
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Affiliation(s)
- Shanlong Huang
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Delai Fu
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Ziyan Wan
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Min Li
- Department of Pediatrics, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Hecheng Li
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Tie Chong
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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Wang K, Lei Y, Wang X, Duan J, Cui L, Zhang Y, Zhao Z, Bai Y, Tan X, Fu D, Zhao C, Yang B, Teng Y. P75.08 KDM5C Mutation Is Associated with Better Immunotherapy Outcomes in Non–Small Cell Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.1042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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12
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Xu N, Cui Y, Fu D, Sun F. Tear inflammatory cytokines and ocular surface changes in patients with active thyroid eye disease treated with high-dose intravenous glucocorticoids. J Endocrinol Invest 2020; 43:901-910. [PMID: 31927748 DOI: 10.1007/s40618-019-01174-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 12/22/2019] [Indexed: 12/11/2022]
Abstract
PURPOSE To evaluate high-dose intravenous glucocorticoid treatment on tear inflammatory cytokines and ocular surface parameters in patients with active TED. Correlations between tear inflammatory cytokines and clinical parameters were also investigated. METHODS This prospective pilot study included 15 moderate-to-severe and active TED patients. Control group consist of 15 sex and age-matched healthy subjects. All TED patients were treated with high-dose intravenous methylprednisolone with cumulative dose of 4.5 g during the therapy subdivided into 12 weekly infusions. Tear concentrations of interleukin (IL)-1β, IL-6, IL-8, IL-10, IL-17A, tumor necrosis factor (TNF)-α, and vascular endothelial growth factor (VEGF) were measured by multiplex bead analysis in TED patients at baseline and 12 weeks after treatment. Ocular surface disease index (OSDI), tear break-up time (TBUT), corneal fluorescent staining, and Schirmer's test were obtained from TED and controls. RESULTS All baseline cytokine levels except for IL-17A were significantly elevated in active TED patients compared with controls. Concentrations of IL-1β, IL-6, IL-8, TNF-α, and VEGF were significantly decreased at 12 weeks compared with baseline. OSDI and TBUT showed significant improvement at 6 and 12 weeks. There were significant positive correlations between IL-6, IL-8, and CAS, and negative correlation was found between IL-6 level and TED duration before methylprednisolone treatment. The reduction of IL-6, IL-8, and VEGF were positive correlated with the reduction in CAS at 12 weeks. CONCLUSIONS High-dose glucocorticoids treatment improved ocular surface symptom, increased the tear film stability, and decreased tear inflammatory cytokines in active TED. The reduction of the inflammatory cytokines is consistent with the improvement of clinical parameters.
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Affiliation(s)
- N Xu
- Department of Oculoplastic and Orbital Diseases, Tianjin Medical University Eye Hospital, No. 251, Fukang Road, Nankai District, Tianjin, 300384, China
- Department of Ophthalmology, Fujian Provincial Hospital, Fuzhou, China
- Department of Ophthalmology and Optometry, Fujian Medical University, Fuzhou, China
| | - Y Cui
- Department of Ophthalmology, Fujian Medical University Union Hospital, Fuzhou, China
- Department of Ophthalmology and Optometry, Fujian Medical University, Fuzhou, China
| | - D Fu
- Department of Ophthalmology, Fujian Medical University Union Hospital, Fuzhou, China
- Department of Ophthalmology and Optometry, Fujian Medical University, Fuzhou, China
| | - F Sun
- Department of Oculoplastic and Orbital Diseases, Tianjin Medical University Eye Hospital, No. 251, Fukang Road, Nankai District, Tianjin, 300384, China.
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13
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Xu Y, Zhang S, Fu D, Lu D. Circulating miR-374b-5p negatively regulates osteoblast differentiation in the progression of osteoporosis via targeting Wnt3 AND Runx2. J BIOL REG HOMEOS AG 2020; 34:345-355. [PMID: 32548991 DOI: 10.23812/19-507-a-9] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Osteoporosis is defined as an aging-related skeletal disorder involving deterioration of bone mass and bone structure, and consequently, increased risk of fractures. Emerging evidence indicates the dysregulation of microRNAs (miRNAs) in the progression of osteoporosis. However, whether such associated miRNAs control osteoblast differentiation or constitute therapeutic targets remains elusive. In the present study, we found elevated circulating miR-374b-5p level associated with postmenopausal osteoporosis. miR-374b-5p served as a critical suppressor of osteoblast differentiation. We further identified that miR-374b-5p directly targeted Wnt family member 3 (Wnt3) and Runt-related transcription factor 2 (Runx2) through its 3'-untranslated regions (3'UTRs). Moreover, the antagonist of miR-374b-5p could promote bone formation in ovariectomy (OVX)-induced mice. Together, our results revealed that miR-374b-5p directly targeted Wnt3 and Runx2, negatively regulating osteoblast differentiation and bone formation. Collectively, circulating miR-374b-5p in the serum might serve as a potential diagnostic and therapeutic strategy for osteoporosis.
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Affiliation(s)
- Y Xu
- Department of Gynaecology and Obstetrics, Northern Jiangsu People's Hospital, Yangzhou, P.R. China
| | - S Zhang
- Department of Gynaecology and Obstetrics, Northern Jiangsu People's Hospital, Yangzhou, P.R. China
| | - D Fu
- Department of Gynaecology and Obstetrics, Northern Jiangsu People's Hospital, Yangzhou, P.R. China
| | - D Lu
- Department of Gynaecology and Obstetrics, Northern Jiangsu People's Hospital, Yangzhou, P.R. China
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Fu D, Zhang P, Wang L, Liu W, Tan H, Di M, Cai M, Zhang P, Tao K, Wang G, Jiang C, Wang Z. Emergency abdominal surgery in COVID-19 patients: a note of caution from Wuhan. Br J Surg 2020; 107:e262. [PMID: 32491190 PMCID: PMC7300454 DOI: 10.1002/bjs.11722] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 04/30/2020] [Indexed: 12/23/2022]
Affiliation(s)
- D Fu
- Department of Gastrointestinal Surgery, Wuhan, China
| | - Pei Zhang
- Department of Gastrointestinal Surgery, Wuhan, China
| | - L Wang
- Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - W Liu
- Department of Colorectal and Anal Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - H Tan
- Department of Gastrointestinal Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - M Di
- Department of Gastrointestinal Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - M Cai
- Department of Gastrointestinal Surgery, Wuhan, China
| | - Peng Zhang
- Department of Gastrointestinal Surgery, Wuhan, China
| | - K Tao
- Department of Gastrointestinal Surgery, Wuhan, China
| | - G Wang
- Department of Gastrointestinal Surgery, Wuhan, China
| | - C Jiang
- Department of Colorectal and Anal Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Z Wang
- Department of Gastrointestinal Surgery, Wuhan, China
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Jia C, Li C, Fu D, Chu M, Zan L, Wang H, Liang C, Yan P. Identification of genetic loci associated with growth traits at weaning in yak through a genome-wide association study. Anim Genet 2019; 51:300-305. [PMID: 31877578 DOI: 10.1111/age.12897] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/02/2019] [Indexed: 12/18/2022]
Abstract
A multilocus GWAS was performed to explore the genetic architecture of four growth traits in yak. In total, 354 female yaks for which measurements of body weight (BW), withers height (WH), body length (BL) and chest girth (CG) at weaning were available underwent genotyping with the Illumina BovineHD BeadChip (770K). After quality control, we retained 98 688 SNPs and 354 animals for GWAS analysis. We identified seven, 18, seven and nine SNPs (corresponding to seven, 17, seven and eight candidate genes) associated with BW, WH, BL and CG at weaning respectively. Interestingly, most of these candidate genes were reported to be involved in growth-related processes such as muscle formation, lipid deposition, feed efficiency, carcass composition and development of the central and peripheral nervous system. Our results offer novel insight into the molecular architecture underpinning yak growth traits. Further functional analyses are thus warranted to explore the molecular mechanisms whereby these genes affect these traits of interest.
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Affiliation(s)
- C Jia
- Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China.,College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - C Li
- Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China
| | - D Fu
- Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China
| | - M Chu
- Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China
| | - L Zan
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - H Wang
- Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China
| | - C Liang
- Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China
| | - P Yan
- Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China
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Miyazaki K, Sekiya T, Fu D, Bowman KW, Kulawik SS, Sudo K, Walker T, Kanaya Y, Takigawa M, Ogochi K, Eskes H, Boersma KF, Thompson AM, Gaubert B, Barre J, Emmons LK. Balance of Emission and Dynamical Controls on Ozone During the Korea-United States Air Quality Campaign From Multiconstituent Satellite Data Assimilation. J Geophys Res Atmos 2019; 124:387-413. [PMID: 31007989 PMCID: PMC6472638 DOI: 10.1029/2018jd028912] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 10/29/2018] [Accepted: 11/06/2018] [Indexed: 05/05/2023]
Abstract
Global multiconstituent concentration and emission fields obtained from the assimilation of the satellite retrievals of ozone, CO, NO2, HNO3, and SO2 from the Ozone Monitoring Instrument (OMI), Global Ozone Monitoring Experiment 2, Measurements of Pollution in the Troposphere, Microwave Limb Sounder, and Atmospheric Infrared Sounder (AIRS)/OMI are used to understand the processes controlling air pollution during the Korea-United States Air Quality (KORUS-AQ) campaign. Estimated emissions in South Korea were 0.42 Tg N for NO x and 1.1 Tg CO for CO, which were 40% and 83% higher, respectively, than the a priori bottom-up inventories, and increased mean ozone concentration by up to 7.5 ± 1.6 ppbv. The observed boundary layer ozone exceeded 90 ppbv over Seoul under stagnant phases, whereas it was approximately 60 ppbv during dynamical conditions given equivalent emissions. Chemical reanalysis showed that mean ozone concentration was persistently higher over Seoul (75.10 ± 7.6 ppbv) than the broader KORUS-AQ domain (70.5 ± 9.2 ppbv) at 700 hPa. Large bias reductions (>75%) in the free tropospheric OH show that multiple-species assimilation is critical for balanced tropospheric chemistry analysis and emissions. The assimilation performance was dependent on the particular phase. While the evaluation of data assimilation fields shows an improved agreement with aircraft measurements in ozone (to less than 5 ppbv biases), CO, NO2, SO2, PAN, and OH profiles, lower tropospheric ozone analysis error was largest at stagnant conditions, whereas the model errors were mostly removed by data assimilation under dynamic weather conditions. Assimilation of new AIRS/OMI ozone profiles allowed for additional error reductions, especially under dynamic weather conditions. Our results show the important balance of dynamics and emissions both on pollution and the chemical assimilation system performance.
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Affiliation(s)
- K. Miyazaki
- Japan Agency for Marine‐Earth Science and TechnologyYokohamaJapan
| | - T. Sekiya
- Japan Agency for Marine‐Earth Science and TechnologyYokohamaJapan
| | - D. Fu
- Jet Propulsion LaboratoryCalifornia Institute of TechnologyPasadenaCAUSA
| | - K. W. Bowman
- Jet Propulsion LaboratoryCalifornia Institute of TechnologyPasadenaCAUSA
| | - S. S. Kulawik
- Bay Area Environmental Research InstituteSonomaCAUSA
| | - K. Sudo
- Japan Agency for Marine‐Earth Science and TechnologyYokohamaJapan
- Graduate School of Environmental StudiesNagoya UniversityNagoyaJapan
| | - T. Walker
- Department of Civil and Environmental EngineeringCarleton UniversityOttawaOntarioCanada
| | - Y. Kanaya
- Japan Agency for Marine‐Earth Science and TechnologyYokohamaJapan
| | - M. Takigawa
- Japan Agency for Marine‐Earth Science and TechnologyYokohamaJapan
| | - K. Ogochi
- Japan Agency for Marine‐Earth Science and TechnologyYokohamaJapan
| | - H. Eskes
- Royal Netherlands Meteorological Institute (KNMI)De BiltNetherlands
| | - K. F. Boersma
- Royal Netherlands Meteorological Institute (KNMI)De BiltNetherlands
- Meteorological and Air Quality DepartmentWageningen UniversityWageningenNetherlands
| | | | - B. Gaubert
- Atmospheric Chemistry Observations and& Modeling (ACOM) LaboratoryNational Center for Atmospheric ResearchBoulderCOUSA
| | - J. Barre
- European Centre for Medium‐Range Weather ForecastsReadingUK
| | - L. K. Emmons
- Atmospheric Chemistry Observations and& Modeling (ACOM) LaboratoryNational Center for Atmospheric ResearchBoulderCOUSA
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17
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Nicoletti D, Fu D, Mehio O, Moore S, Disa AS, Gu GD, Cavalleri A. Magnetic-Field Tuning of Light-Induced Superconductivity in Striped La_{2-x}Ba_{x}CuO_{4}. Phys Rev Lett 2018; 121:267003. [PMID: 30636150 DOI: 10.1103/physrevlett.121.267003] [Citation(s) in RCA: 1] [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] [Received: 03/06/2018] [Indexed: 06/09/2023]
Abstract
Optical excitation of stripe-ordered La_{2-x}Ba_{x}CuO_{4} has been shown to transiently enhance superconducting tunneling between the CuO_{2} planes. This effect was revealed by a blueshift, or by the appearance of a Josephson plasma resonance in the terahertz-frequency optical properties. Here, we show that this photoinduced state can be strengthened by the application of high external magnetic fields oriented along the c axis. For a 7 T field, we observe up to a tenfold enhancement in the transient interlayer phase correlation length, accompanied by a twofold increase in the relaxation time of the photoinduced state. These observations are highly surprising, since static magnetic fields suppress interlayer Josephson tunneling and stabilize stripe order at equilibrium. We interpret our data as an indication that optically enhanced interlayer coupling in La_{2-x}Ba_{x}CuO_{4} does not originate from a simple optical melting of stripes, as previously hypothesized. Rather, we speculate that the photoinduced state may emerge from activated tunneling between optically excited stripes in adjacent planes.
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Affiliation(s)
- D Nicoletti
- Max Planck Institute for the Structure and Dynamics of Matter, 22761 Hamburg, Germany
| | - D Fu
- Max Planck Institute for the Structure and Dynamics of Matter, 22761 Hamburg, Germany
| | - O Mehio
- Max Planck Institute for the Structure and Dynamics of Matter, 22761 Hamburg, Germany
| | - S Moore
- Max Planck Institute for the Structure and Dynamics of Matter, 22761 Hamburg, Germany
| | - A S Disa
- Max Planck Institute for the Structure and Dynamics of Matter, 22761 Hamburg, Germany
| | - G D Gu
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - A Cavalleri
- Max Planck Institute for the Structure and Dynamics of Matter, 22761 Hamburg, Germany
- Department of Physics, Clarendon Laboratory, University of Oxford, Oxford OX1 3PU, United Kingdom
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18
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Kang S, Fu D, Le Couteur D, Cogger V. AGE-ASSOCIATED CHANGES IN MOUSE HEPATOCYTE POLARIZATION. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.2066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- S Kang
- The University of Sydney, Concord, New South Wales, Australia
| | - D Fu
- The University of North Carolina,United States
| | | | - V Cogger
- The University of Sydney, Australia
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19
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Huang S, Yang C, Li M, Wang B, Chen H, Fu D, Chong T. Effect of dual mTOR inhibitor on TGFβ1-induced fibrosis in primary human urethral scar fibroblasts. Biomed Pharmacother 2018; 106:1182-1187. [DOI: 10.1016/j.biopha.2018.07.070] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 07/12/2018] [Accepted: 07/13/2018] [Indexed: 11/17/2022] Open
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Yang C, Wang Z, Huang S, Xue L, Fu D, Chong T. Retroperitoneal Laparoscopic Partial Nephrectomy Versus Radical Nephrectomy for Clinical T1 Renal Hilar Tumor: Comparison of Perioperative Characteristics and Short-Term Functional and Oncologic Outcomes. J Laparoendosc Adv Surg Tech A 2018; 28:1183-1187. [PMID: 29668402 DOI: 10.1089/lap.2018.0064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 01/20/2023] Open
Abstract
PURPOSE To present our single-center experience with retroperitoneal laparoscopic partial nephrectomy (LPN) and retroperitoneal laparoscopic radical nephrectomy (LRN) for T1 renal hilar tumors and evaluate which one is better. METHODS A retrospective review of 63 patients with hilar tumors undergoing retroperitoneal LPN or LRN was performed. The perioperative characteristics, change in estimated glomerular filtration rate (eGFR) from baseline to month 3, and oncologic outcomes were summarized. RESULTS In total, 25 patients underwent LPN, and 38 patients underwent LRN. The mean tumor size in the LPN and LRN groups was 4.5 and 4.9 cm, respectively. The mean operation time was longer in the LPN group than that in the LRN group (212.5 minutes versus 160.7 minutes, respectively; P < .05). Patients undergoing the LPN had a longer median length of hospital stay after surgery (9 days versus 7 days, P < .05). Four percent of patients in the LPN group experienced postoperative complications compared with 5% of patients in the LRN group, which was not significantly different. Compared with preoperative eGFR, postoperative eGFR at 3 months decreased by 15.2 mL/min/1.73 m2 and 27.8 mL/min/1.73 m2 in the LPN and the LRN groups, respectively (P < .05). There was one local recurrence in the LPN group and three local or distant recurrences in the LRN group (P > .05). CONCLUSIONS In experienced hands, although retroperitoneal LRN can result in shorter operation times and shorter lengths of stay, retroperitoneal LPN can preserve renal function better than LRN. Retroperitoneal LPN should be the priority in selected patients with T1 renal hilar tumors, especially for patients with renal insufficiency.
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Affiliation(s)
- Chuance Yang
- Department of Urology, The Second Affiliated Hospital, Xi'an Jiaotong University , Xi'an, China
| | - Zhenlong Wang
- Department of Urology, The Second Affiliated Hospital, Xi'an Jiaotong University , Xi'an, China
| | - Shanlong Huang
- Department of Urology, The Second Affiliated Hospital, Xi'an Jiaotong University , Xi'an, China
| | - Li Xue
- Department of Urology, The Second Affiliated Hospital, Xi'an Jiaotong University , Xi'an, China
| | - Delai Fu
- Department of Urology, The Second Affiliated Hospital, Xi'an Jiaotong University , Xi'an, China
| | - Tie Chong
- Department of Urology, The Second Affiliated Hospital, Xi'an Jiaotong University , Xi'an, China
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Xu Y, Tang Y, Zhao Y, Gao R, Zhang J, Fu D, Li Z, Li H, Tang X. Bifunctional monomer magnetic imprinted nanomaterials for selective separation of tetracyclines directly from milk samples. J Colloid Interface Sci 2018; 515:18-26. [DOI: 10.1016/j.jcis.2018.01.001] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Revised: 12/21/2017] [Accepted: 01/01/2018] [Indexed: 11/26/2022]
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22
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Zhao W, Xu P, Fu D, Li J, Wang X, Hu J, Zhou J, Yu H, Zhao X, Su L, Chen Z, Zeng Q, Chen J, Fang M, Ma J, Liu T, Song Y, Yu K, Li Y, Qiu L, Chen X, Gu J, Yan J, Hou M, Xiong H. ANTHRACYCLINE DOSE INTENSIFICATION IN DIFFUSE LARGE B-CELL LYMPHOMA. Hematol Oncol 2017. [DOI: 10.1002/hon.2438_48] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- W. Zhao
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital; Shanghai Jiao Tong University School of Medicine; Shanghai China
| | - P. Xu
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital; Shanghai Jiao Tong University School of Medicine; Shanghai China
| | - D. Fu
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital; Shanghai Jiao Tong University School of Medicine; Shanghai China
| | - J. Li
- Department of Hematology; the First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital; Nanjing China
| | - X. Wang
- Department of Hematology; Shandong Provincial Hospital Affiliated to Shandong University; Jinan China
| | - J. Hu
- Fujian Institute of Hematology; Fujian Medical University Union Hospital; Fuzhou China
| | - J. Zhou
- Department of Hematology; Tongji Medical College; Wuhan China
| | - H. Yu
- Department of research and development; Shanghai Righton Biotechnology Co. Ltd; Shanghai China
| | - X. Zhao
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital; Shanghai Jiao Tong University School of Medicine; Shanghai China
| | - L. Su
- Department of Hematology; Shanxi Provincial Cancer Hospital; Taiyuan China
| | - Z. Chen
- Department of Hematology; the First People's Hospital of Foshan; Foshan China
| | - Q. Zeng
- Department of Hematology; the First Affiliated Hospital of Anhui Medical University; Hefei China
| | - J. Chen
- Department of Hematology, Southwestern Hospital; Third Military Medical University; Chongqing China
| | - M. Fang
- Department of Hematology; First Hospital of Dalian Medical University; Dalian China
| | - J. Ma
- Harbin Institute of Hematology and Oncology; Harbin First Hospital; Harbin China
| | - T. Liu
- Department of Hematology, Hematology Research Laboratory, West China Hospital; Sichuan University; Chengdu China
| | - Y. Song
- Department of Hematology; The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital; Zhengzhou China
| | - K. Yu
- Department of Hematology; The First Affiliated Hospital of Wenzhou Medical University; Wenzhou China
| | - Y. Li
- Department of Hematology; The First Hospital of China Medical University; Shenyang China
| | - L. Qiu
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Disease Hospital; Chinese Academy of Medical Sciences and Peking Union Medical College; Tianjin China
| | - X. Chen
- Department of Hematology, Xijing Hospital; Fourth Military Medical University; Xi'an China
| | - J. Gu
- Institute of Hematology; Clinical Medical College of Yangzhou University, Subei People's Hospital of Jiangsu Province; Yangzhou China
| | - J. Yan
- Department of Hematology; Second Hospital of Dalian Medical University; Dalian China
| | - M. Hou
- Department of Hematology, Qilu Hospital; Shandong University; Jinan China
| | - H. Xiong
- Department of research and development; Shanghai Righton Biotechnology Co. Ltd; Shanghai China
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Liang X, Li H, Fu D, Chong T, Wang Z, Li Z. MicroRNA-1297 inhibits prostate cancer cell proliferation and invasion by targeting the AEG-1/Wnt signaling pathway. Biochem Biophys Res Commun 2016; 480:208-214. [DOI: 10.1016/j.bbrc.2016.10.029] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Accepted: 10/12/2016] [Indexed: 12/13/2022]
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Abstract
OBJECTIVE To evaluate the prevalence of Helicobacter pylori (H. pylori, HP) infection in subjects receiving routine physical examination and its associations with age, sex, body mass index (BMI) and lipid profiles. MATERIALS AND METHODS Clinical information of 22,103 individuals who took routine physical examinations, including that on age, gender, height, weight, triglyceride, total cholesterol, high-density lipoprotein (HDL) cholesterol, low-density lipoprotein (LDL) cholesterol and data of HP infection were collected and analyzed. RESULTS H. pylori infection rate in 22,103 subjects taking routine physical examination was 44.5 %. More men tended to be infected with H. pylori than women (45.9 % vs 42.8 %; p < 0.01). The highest positive rate group was in the age group of 30-39 years (46.8 %) and the lowest rate was in the age group younger than 30 years (40.5 %). The obese had higher infection rate than the non-obese (p < 0.01). Mann-Whitney U test was used to explore the relationships between lipid profiles and H. pylori infection. There were significant associations among HDL, triglyceride and HP infection (p < 0.01). However, significant differences were not confirmed between cholesterol, LDL and H. pylori infection. CONCLUSION H. pylori infection was common among subjects receiving physical examination in Shanghai and it was most significantly associated with HDL and triglyceride, indicating that H. pylori might be a new cardiovascular risk factor (Tab. 3, Ref. 23).
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Fu D, Liu JL, Li MJ, Yang H. [A systematic evaluation of the assessment methods of spasmoidc dysphonia]. Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2016; 30:1254-1260. [PMID: 29798344 DOI: 10.13201/j.issn.1001-1781.2016.15.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Indexed: 06/08/2023]
Abstract
To review the available subjective and objective evaluation methods used in the assessment of the spasmodic dysphonia.A systematic literature search was conducted in PubMed,web of science,EBSCO and Ovid database,date limited from 2000 to 2015,language limited English,using the following key words: "spasmodic dysphonia" OR "spastic dysphonia" AND "evaluat*" OR " diagnosis" OR "treatment" OR "assess*".Screening the titles and abstracts,and reading the full text,studies met the inclusion criteria were enrolled.The references of eligible publications were manually searched to identify additional studies.A total of 967 literatures were retrieved.Finally,twenty-three papers were enrolled in the study according to the inclusion criteria.Evaluation methods were mainly divided into subjective and objective,including perception,subjective self-assessment;and aerodynamic,acoustic analysis,respectively.The assessment of spasmodic dysphonia should be multidimensional.
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Wei X, Song X, Dong D, Keyhani NO, Yao L, Zang X, Dong L, Gu Z, Fu D, Liu X, Qiu J, Guan X. Efficient production of Aschersonia placenta protoplasts for transformation using optimization algorithms. Can J Microbiol 2016; 62:579-87. [PMID: 27192440 DOI: 10.1139/cjm-2015-0770] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The insect pathogenic fungus Aschersonia placenta is a highly effective pathogen of whiteflies and scale insects. However, few genetic tools are currently available for studying this organism. Here we report on the conditions for the production of transformable A. placenta protoplasts using an optimized protocol based on the response surface method (RSM). Critical parameters for protoplast production were modelled by using a Box-Behnken design (BBD) involving 3 levels of 3 variables that was subsequently tested to verify its ability to predict protoplast production (R(2) = 0.9465). The optimized conditions resulted in the highest yield of protoplasts ((4.41 ± 0.02) × 10(7) cells/mL of culture, mean ± SE) when fungal cells were treated with 26.1 mg/mL of lywallzyme for 4 h of digestion, and subsequently allowed to recover for 64.6 h in 0.7 mol/L NaCl-Tris buffer. The latter was used as an osmotic stabilizer. The yield of protoplasts was approximately 10-fold higher than that of the nonoptimized conditions. Generated protoplasts were transformed with vector PbarGPE containing the bar gene as the selection marker. Transformation efficiency was 300 colonies/(μg DNA·10(7) protoplasts), and integration of the vector DNA was confirmed by PCR. The results show that rational design strategies (RSM and BBD methods) are useful to increase the production of fungal protoplasts for a variety of downstream applications.
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Affiliation(s)
- Xiuyan Wei
- a Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China.,b Fujian-Taiwan Joint Centre for Ecological Control of Crop Pests, Fuzhou, Fujian 350002, China.,c State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Xinyue Song
- a Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China.,b Fujian-Taiwan Joint Centre for Ecological Control of Crop Pests, Fuzhou, Fujian 350002, China.,c State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Dong Dong
- a Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China.,b Fujian-Taiwan Joint Centre for Ecological Control of Crop Pests, Fuzhou, Fujian 350002, China.,c State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Nemat O Keyhani
- d Department of Microbiology and Cell Science, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611, USA
| | - Lindan Yao
- a Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China.,b Fujian-Taiwan Joint Centre for Ecological Control of Crop Pests, Fuzhou, Fujian 350002, China
| | - Xiangyun Zang
- a Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China.,b Fujian-Taiwan Joint Centre for Ecological Control of Crop Pests, Fuzhou, Fujian 350002, China
| | - Lili Dong
- a Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China.,b Fujian-Taiwan Joint Centre for Ecological Control of Crop Pests, Fuzhou, Fujian 350002, China
| | - Zijian Gu
- a Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China.,b Fujian-Taiwan Joint Centre for Ecological Control of Crop Pests, Fuzhou, Fujian 350002, China
| | - Delai Fu
- a Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China.,b Fujian-Taiwan Joint Centre for Ecological Control of Crop Pests, Fuzhou, Fujian 350002, China
| | - Xingzhong Liu
- c State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Junzhi Qiu
- a Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China.,b Fujian-Taiwan Joint Centre for Ecological Control of Crop Pests, Fuzhou, Fujian 350002, China.,c State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Xiong Guan
- a Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China.,b Fujian-Taiwan Joint Centre for Ecological Control of Crop Pests, Fuzhou, Fujian 350002, China
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Marchildon F, Fu D, Lala-Tabbert N, Wiper-Bergeron N. CCAAT/enhancer binding protein beta protects muscle satellite cells from apoptosis after injury and in cancer cachexia. Cell Death Dis 2016; 7:e2109. [PMID: 26913600 PMCID: PMC4849162 DOI: 10.1038/cddis.2016.4] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Revised: 12/22/2015] [Accepted: 12/27/2015] [Indexed: 12/28/2022]
Abstract
CCAAT/enhancer binding protein beta (C/EBPβ), a transcription factor expressed in muscle satellite cells (SCs), inhibits the myogenic program and is downregulated early in differentiation. In a conditional null model in which C/EBPβ expression is knocked down in paired box protein 7+ (Pax7+) SCs, cardiotoxin (CTX) injury is poorly repaired, although muscle regeneration is efficient in control littermates. While myoblasts lacking C/EBPβ can differentiate efficiently in culture, after CTX injury poor regeneration was attributed to a smaller than normal Pax7+ population, which was not due to a failure of SCs to proliferate. Rather, the percentage of apoptotic SCs was increased in muscle lacking C/EBPβ. Given that an injury induced by BaCl2 is repaired with greater efficiency than controls in the absence of C/EBPβ, we investigated the inflammatory response following BaCl2 and CTX injury and found that the levels of interleukin-1β (IL-1β), a proinflammatory cytokine, were robustly elevated following CTX injury and could induce C/EBPβ expression in myoblasts. High levels of C/EBPβ expression in myoblasts correlated with resistance to apoptotic stimuli, while its loss increased sensitivity to thapsigargin-induced cell death. Using cancer cachexia as a model for chronic inflammation, we found that C/EBPβ expression was increased in SCs and myoblasts of tumor-bearing cachectic animals. Further, in cachectic conditional knockout animals lacking C/EBPβ in Pax7+ cells, the SC compartment was reduced because of increased apoptosis, and regeneration was impaired. Our findings indicate that the stimulation of C/EBPβ expression by IL-1β following muscle injury and in cancer cachexia acts to promote SC survival, and is therefore a protective mechanism for SCs and myoblasts in the face of inflammation.
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Affiliation(s)
- F Marchildon
- Graduate Program in Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - D Fu
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - N Lala-Tabbert
- Graduate Program in Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - N Wiper-Bergeron
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
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Zhang C, Ma J, Chen G, Fu D, Li L, Li M. Evaluation of common variants in CNR2 gene for bone mineral density and osteoporosis susceptibility in postmenopausal women of Han Chinese. Osteoporos Int 2015; 26:2803-10. [PMID: 26055357 DOI: 10.1007/s00198-015-3195-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Accepted: 05/28/2015] [Indexed: 12/11/2022]
Abstract
UNLABELLED Postmenopausal osteoporosis is a major health problem with important genetic factors in postmenopausal women. We thoroughly evaluated the relationship of CNR2 polymorphisms with osteoporosis in a cohort of 1032 osteoporosis patients and 2089 healthy controls from Han Chinese postmenopausal women. Statistically significant differences, depending on different genotypes, were presented. INTRODUCTION Osteoporosis is a major health problem in postmenopausal women, which is a multifactorial disease in which genetic determinants are modulated by hormonal, environmental, and nutritional factors. An important clinical risk factor in the pathogenesis of osteoporosis is the presence of genetic polymorphism in susceptibility genes. The aim of our study was to investigate whether CNR2 gene, which attributes to osteoporosis susceptibility in some populations, is associated with bone mineral density (BMD) or osteoporosis in Han Chinese postmenopausal women. METHODS We examine 39 SNPs covering the region of CNR2 gene in 3121 Han Chinese postmenopausal women, consisting of 1032 osteoporosis patients and 2089 healthy controls, to evaluate the association with BMD and osteoporosis. RESULTS We found that rs4237 and rs2501431 were significantly associated with BMD and osteoporosis (corrected p = 0.020085 and 0.017199) in our sample, and the TT genotype of rs2501431 and the AA genotype of rs4237 had lower lumbar spine BMD and femoral neck BMD compared with the other genotypes. Additionally, analyses by haplotypes indicated that two haplotype blocks, containing rs4237 and rs2501431 respectively, in the CNR2 gene significantly associated with BMD and osteoporosis (both global permutation p < 0.001), and a risk haplotype (ATTT) in the block of rs3003336-rs2501431-rs2502992-rs2501432 had almost 4-fold increase in the cases. CONCLUSIONS Our results provide further supportive evidence for an important role of CNR2 gene in the etiology of osteoporosis and suggest that it may be a genetic risk factor for BMD and osteoporosis in Han Chinese postmenopausal women.
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Affiliation(s)
- C Zhang
- The First Department of Orthopedics, the Second Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, 157 Xiwu road, Xi'an, 710061, China
| | - J Ma
- The First Department of Orthopedics, the Second Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, 157 Xiwu road, Xi'an, 710061, China
| | - G Chen
- College of Medicine & Forensics, Xi'an Jiaotong University, 76 West Yanta road, Xi'an, 710061, China
| | - D Fu
- College of Medicine & Forensics, Xi'an Jiaotong University, 76 West Yanta road, Xi'an, 710061, China
| | - L Li
- College of Medicine & Forensics, Xi'an Jiaotong University, 76 West Yanta road, Xi'an, 710061, China
| | - M Li
- Department of Ultrasound, the Second Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, 157 Xiwu road, Xi'an, 710061, China.
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Zhang D, Wang W, Jiang B, Fu D. SU-E-P-54: Evaluation of the Accuracy and Precision of IGPS-O X-Ray Image-Guided Positioning System by Comparison with On-Board Imager Cone-Beam Computed Tomography. Med Phys 2015. [DOI: 10.1118/1.4923988] [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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Xu J, Wang G, Fu D, Su N, Wang L, Gao F, Guo N. High-resolution color doppler ultrasound examination and related risk factor analysis of lower extremity vasculopathy in type 2 diabetes patients. Genet Mol Res 2015; 14:3939-47. [PMID: 25966165 DOI: 10.4238/2015.april.27.8] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
This study aims to investigate the value of high-resolution color Doppler ultrasonography (HR-CDU) in the evaluation of lower-extremity vasculopathy (LEV) and its related risk factors in type 2 diabetes mellitus (T2DM) patients. Two hundred forty T2DM patients were selected, who underwent lower-extremity arterial HR-CDU. The patients were divided into the LEV group (V group) and the nonvasculopathy group (A group). The V group was then divided into the mild (B group), moderate (C group), and severe (D group) subgroups. The relevant clinical parameters were simultaneously recorded. The results showed that the lesion-positive detection rate of HR-CDU was significantly higher than that of clinical examination. The age, disease duration, smoking history, blood pressure, blood sugar, fibrinogen (FIB), C-reactive protein (CRP), uric acid (UA), and urinary albumin excretion (UAE) in the V group were higher than in the N group. In the logistic regression analysis, smoking history, age, disease duration, FIB, UA, and fasting blood glucose were independent risk factors of T2DM LEV. The incidence of LEV in T2DM patients increased significantly with increasing age, UA, FIB, CRP, UAE, disease duration, and smoking history, and the vasculopathy level became more severe. In conclusion, age, disease duration, smoking history, blood pressure, blood sugar, FIB, CRP, UA, and UAE are the related risk factors of LEV in T2DM patients.
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Affiliation(s)
- J Xu
- Second Division, Department of Endocrinology, Hebei Cangzhou Central Hospital, Hebei, China
| | - G Wang
- Second Division, Department of Endocrinology, Hebei Cangzhou Central Hospital, Hebei, China
| | - D Fu
- Second Division, Department of Endocrinology, Hebei Cangzhou Central Hospital, Hebei, China
| | - N Su
- Second Division, Department of Endocrinology, Hebei Cangzhou Central Hospital, Hebei, China
| | - L Wang
- Second Division, Department of Endocrinology, Hebei Cangzhou Central Hospital, Hebei, China
| | - F Gao
- Second Division, Department of Endocrinology, Hebei Cangzhou Central Hospital, Hebei, China
| | - N Guo
- Second Division, Department of Endocrinology, Hebei Cangzhou Central Hospital, Hebei, China
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Fu D, Chong T, Li H, Zhang H, Wang Z. Docetaxel inhibits urethral stricture formation, an initial study in rabbit model. PLoS One 2014; 9:e112097. [PMID: 25375859 PMCID: PMC4223003 DOI: 10.1371/journal.pone.0112097] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2013] [Accepted: 10/12/2014] [Indexed: 02/05/2023] Open
Abstract
INTRODUCTION Urethral stricture, a frequent source of lower urinary tract disorders in men, is still a difficult problem for urologists. Based the anti-restenosis effect of paclitaxel on coronary artery, the role of docetaxel, a semi-synthetic analogue of paclitaxel, in limiting urethral stricture formation was studied. METHODS Forty adult New Zealand male rabbits were involved in this study, which were randomly assigned into 3 groups, namely a high dose docetaxel (DH, 0.1 mg/d), a low dose docetaxel (DL, 0.01 mg/d) and a control (C) group, with 16, 16, 8 rabbits in each group, respectively. All animals underwent a 10 mm-long circumferential electrocoagulation of the bulbar urethra with a 13Fr pediatric resectoscope. Drugs were given by urethral irrigation daily and continuous for 28 days. Stricture formation was assessed by retrograde urethrography and videourethroscopy. Urethra pathology was evaluated by hematoxylin and eosin staining and Sirius red staining. RESULTS At the end of this study, 15, 14 and 7 rabbits remained for evaluation in DH, DL and C group, respectively. Urethral diameters in DH, DL and C group were (7.17±1.63) mm, (6.55±0.62) mm, (3.23±1.36) mm, with a normal urethral diameter of (9.08±1.29) mm. Lumen reduction in DH, DL and C group were (36.93±11.58)%, (48.03±7.89)% and (84.66±14.95)%, respectively. Statistically difference could be found between every two groups (p<0.05) both in urethral diameters and in lumen reduction, except for compare of urethral diameters between DH and DL group. Histological examination confirmed mass fibrous tissue and collagen content at the stricture sit in C group, whereas less in docetaxel treated rabbits. CONCLUSIONS Docetaxel could limit urethral stricture formation, which may be due to inhibition of fibrous tissue and collagen expression. Docetaxel may become a new choice in the prevention of urethral stricture formation.
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Affiliation(s)
- Delai Fu
- Department of Urology, the Second Affiliated Hospital, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Tie Chong
- Department of Urology, the Second Affiliated Hospital, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Hecheng Li
- Department of Urology, the Second Affiliated Hospital, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Huibo Zhang
- Department of Urology, the Affiliated Hospital of Shaanxi Traditional Chinese Medical Collage, Xianyang, Shaanxi, People’s Republic of China
| | - Ziming Wang
- Department of Urology, the Second Affiliated Hospital, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
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Scherpereel A, Cornelissen R, Di Pietro A, Kindler H, Nackaerts K, Antonia S, Calabrò L, Fu D, Robbins P, Ibrahim R, Maio M. Randomized, Double-Blind, Placebo-Controlled Study of Tremelimumab for Second-Line and Third-Line Treatment of Unresectable Pleural or Peritoneal Mesothelioma. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu342.27] [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: 11/13/2022] Open
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An Z, Tang Z, Ma B, Mason AS, Guo Y, Yin J, Gao C, Wei L, Li J, Fu D. Transposon variation by order during allopolyploidisation between Brassica oleracea and Brassica rapa. Plant Biol (Stuttg) 2014; 16:825-35. [PMID: 24176077 DOI: 10.1111/plb.12121] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [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: 02/26/2013] [Accepted: 09/23/2013] [Indexed: 05/02/2023]
Abstract
Although many studies have shown that transposable element (TE) activation is induced by hybridisation and polyploidisation in plants, much less is known on how different types of TE respond to hybridisation, and the impact of TE-associated sequences on gene function. We investigated the frequency and regularity of putative transposon activation for different types of TE, and determined the impact of TE-associated sequence variation on the genome during allopolyploidisation. We designed different types of TE primers and adopted the Inter-Retrotransposon Amplified Polymorphism (IRAP) method to detect variation in TE-associated sequences during the process of allopolyploidisation between Brassica rapa (AA) and Brassica oleracea (CC), and in successive generations of self-pollinated progeny. In addition, fragments with TE insertions were used to perform Blast2GO analysis to characterise the putative functions of the fragments with TE insertions. Ninety-two primers amplifying 548 loci were used to detect variation in sequences associated with four different orders of TE sequences. TEs could be classed in ascending frequency into LTR-REs, TIRs, LINEs, SINEs and unknown TEs. The frequency of novel variation (putative activation) detected for the four orders of TEs was highest from the F1 to F2 generations, and lowest from the F2 to F3 generations. Functional annotation of sequences with TE insertions showed that genes with TE insertions were mainly involved in metabolic processes and binding, and preferentially functioned in organelles. TE variation in our study severely disturbed the genetic compositions of the different generations, resulting in inconsistencies in genetic clustering. Different types of TE showed different patterns of variation during the process of allopolyploidisation.
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Affiliation(s)
- Z An
- Engineering Research Center of South Upland Agriculture of Ministry of Education, College of Agronomy and Biotechnology, Southwest University, Chongqing, China; Crop Research Institute, Gansu Academy of Agricultural Sciences, Lanzhou, China
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Wu Y, Sun H, Song F, Fu D, Wang J. DDIT3 overexpression increases odontoblastic potential of human dental pulp cells. Cell Prolif 2014; 47:249-57. [PMID: 24738922 PMCID: PMC6495274 DOI: 10.1111/cpr.12104] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [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: 11/21/2013] [Accepted: 01/18/2014] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVES Human dental pulp cells (HDPCs) with multi-potential differentiational capacity can undergo odontoblastic differentiation when stimulated with proinflammatory cytokines. However, factors linking proinflammatory stimuli and their odontoblastic differentiation have, as yet, not been completely understood. As an apoptotic transcription factor, DDIT3 plays a crucial role in the inflammatory reaction and in osteogenic differentiation. Thus, we hypothesized that DDIT3 may participate in odontoblastic differentiation of HDPCs. MATERIALS AND METHODS Immunofluorescent staining was used to detect expression of DDIT3 in HDPCs and effects of TNFα, on its nuclear accumulation. HDPCs that overexpressed DDIT3 were developed and their proliferation and odontoblastic differentiation abilities were examined. qRT-PCR was employed to detect mineralization-related genes, including ALP, runt-related transcription factor-2 (Runx2), osterix (OSX), dentin sialophosphoprotein (DSPP), dentin matrix acidic phosphoprotein 1 (DMP1) and osteocalcin (OCN). Western blot analysis was performed to detect expression of DSPP protein. RESULTS DDIT3 was expressed in HDPCs. TNFα treatment enhanced mRNA expression as well as nuclear accumulation of DDIT3 (slightly). DDIT3 overexpression reduced HDPC proliferation, however, it increased their calcium nodule formation and expression of OSX, DSPP, DMP1 and OCN. CONCLUSIONS DDIT3 may be a factor that links proinflammatory stimuli and differentiation of HDPCs.
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Affiliation(s)
- Y. Wu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) & Key Laboratory of Oral Biomedicine Ministry of EducationSchool & Hospital of StomatologyWuhan UniversityWuhanHubei430079China
| | - H. Sun
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) & Key Laboratory of Oral Biomedicine Ministry of EducationSchool & Hospital of StomatologyWuhan UniversityWuhanHubei430079China
| | - F. Song
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) & Key Laboratory of Oral Biomedicine Ministry of EducationSchool & Hospital of StomatologyWuhan UniversityWuhanHubei430079China
| | - D. Fu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) & Key Laboratory of Oral Biomedicine Ministry of EducationSchool & Hospital of StomatologyWuhan UniversityWuhanHubei430079China
| | - J. Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) & Key Laboratory of Oral Biomedicine Ministry of EducationSchool & Hospital of StomatologyWuhan UniversityWuhanHubei430079China
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Lee B, Chen Y, Fu D, Yi HT, Czelen K, Najafov H, Podzorov V. Trap healing and ultralow-noise Hall effect at the surface of organic semiconductors. Nat Mater 2013; 12:1125-1129. [PMID: 24162882 DOI: 10.1038/nmat3781] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2013] [Accepted: 09/17/2013] [Indexed: 06/02/2023]
Abstract
Fundamental studies of intrinsic charge transport properties of organic semiconductors are often hindered by charge traps associated with static disorder present even in optimized single-crystal devices. Here, we report a method of surface functionalization using an inert non-conjugated polymer, perfluoropolyether (PFPE), deposited at the surface of organic molecular crystals, which results in accumulation of mobile holes and a 'trap healing' effect at the crystal/PFPE interface. As a consequence, a remarkable ultralow-noise, trp-free conduction regime characterized by intrinsic mobility and transport anisotropy emerges in organic single crystals, and Hall effect measurements with an unprecedented signal-to-noise ratio are demonstrated. This general method to convert trap-dominated organic semiconductors to intrinsic systems may enable the determination of intrinsic transport parameters with high accuracy and make Hall effect measurements in molecular crystals ubiquitous.
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Affiliation(s)
- B Lee
- 1] Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08854, USA [2]
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Du M, Wu M, Fu D, Yang S, Chen J, Wilson K, Lyons TJ. Effects of modified LDL and HDL on retinal pigment epithelial cells: a role in diabetic retinopathy? Diabetologia 2013; 56:2318-28. [PMID: 23842729 PMCID: PMC4557884 DOI: 10.1007/s00125-013-2986-x] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Accepted: 06/17/2013] [Indexed: 10/26/2022]
Abstract
AIMS/HYPOTHESIS Blood-retina barrier leakage in diabetes results in extravasation of plasma lipoproteins. Intra-retinal modified LDLs have been implicated in diabetic retinopathy (DR), but their effects on retinal pigment epithelial (RPE) cells and the added effects of extravasated modified HDLs are unknown. METHODS In human retinas from individuals with and without diabetes and DR, immunohistochemistry was used to detect ApoB, ApoA1 and endoplasmic reticulum (ER) stress markers. In cell culture, human RPE cells were treated with native LDL (N-LDL) or heavily-oxidised glycated LDL (HOG-LDL) with or without pretreatment with native HDL (N-HDL) or heavily-oxidised glycated HDL (HOG-HDL). Cell viability, oxidative stress, ER stress, apoptosis and autophagy were assessed by Cell Counting Kit-8 assay, dichlorofluorescein assay, western blotting, immunofluorescence and TUNEL assay. In separate experiments, RPE cells were treated with lipid oxidation products, 7-ketocholesterol (7-KC, 5-40 μmol/l) or 4-hydroxynonenal (4-HNE, 5-80 μmol/l), with or without pretreatment with N-HDL or HOG-HDL. RESULTS ApoB, ApoA1 staining and RPE ER stress were increased in the presence of DR. HOG-LDL but not N-LDL significantly decreased RPE cell viability and increased reactive oxygen species generation, ER stress, apoptosis and autophagy. Similarly, 4-HNE and 7-KC decreased viability and induced ER stress. Pretreatment with N-HDL mitigated these effects, whereas HOG-HDL was less effective by most, but not all, measures. CONCLUSIONS/INTERPRETATION In DR, extravascular modified LDL may promote RPE injury through oxidative stress, ER stress, autophagy and apoptosis. N-HDL has protective effects, but HOG-HDL is less effective. Extravasation and modification of HDL may modulate the injurious effects of extravasated modified LDL on the retinal pigment epithelium.
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Affiliation(s)
- M. Du
- Harold Hamm Diabetes Center and Section of Endocrinology and Diabetes, University of Oklahoma Health Sciences Center, HHDC Suite 2900, Oklahoma City, OK 73104, USA
- Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - M. Wu
- Harold Hamm Diabetes Center and Section of Endocrinology and Diabetes, University of Oklahoma Health Sciences Center, HHDC Suite 2900, Oklahoma City, OK 73104, USA
| | - D. Fu
- Harold Hamm Diabetes Center and Section of Endocrinology and Diabetes, University of Oklahoma Health Sciences Center, HHDC Suite 2900, Oklahoma City, OK 73104, USA
- Department of Immunology, Harbin Medical University, Harbin, People’s Republic of China
| | - S. Yang
- Harold Hamm Diabetes Center and Section of Endocrinology and Diabetes, University of Oklahoma Health Sciences Center, HHDC Suite 2900, Oklahoma City, OK 73104, USA
| | - J. Chen
- Harold Hamm Diabetes Center and Section of Endocrinology and Diabetes, University of Oklahoma Health Sciences Center, HHDC Suite 2900, Oklahoma City, OK 73104, USA
| | - K. Wilson
- Harold Hamm Diabetes Center and Section of Endocrinology and Diabetes, University of Oklahoma Health Sciences Center, HHDC Suite 2900, Oklahoma City, OK 73104, USA
| | - T. J. Lyons
- Harold Hamm Diabetes Center and Section of Endocrinology and Diabetes, University of Oklahoma Health Sciences Center, HHDC Suite 2900, Oklahoma City, OK 73104, USA
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Fu D, Wu M, Zhang J, Du M, Yang S, Hammad SM, Wilson K, Chen J, Lyons TJ. Mechanisms of modified LDL-induced pericyte loss and retinal injury in diabetic retinopathy. Diabetologia 2012; 55:3128-40. [PMID: 22935961 PMCID: PMC5922447 DOI: 10.1007/s00125-012-2692-0] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2011] [Accepted: 07/23/2012] [Indexed: 12/31/2022]
Abstract
AIMS/HYPOTHESIS In previous studies we have shown that extravasated, modified LDL is associated with pericyte loss, an early feature of diabetic retinopathy (DR). Here we sought to determine detailed mechanisms of this LDL-induced pericyte loss. METHODS Human retinal capillary pericytes (HRCP) were exposed to 'highly-oxidised glycated' LDL (HOG-LDL) (a model of extravasated and modified LDL) and to 4-hydroxynonenal or 7-ketocholesterol (components of oxidised LDL), or to native LDL for 1 to 24 h with or without 1 h of pretreatment with inhibitors of the following: (1) the scavenger receptor (polyinosinic acid); (2) oxidative stress (N-acetyl cysteine); (3) endoplasmic reticulum (ER) stress (4-phenyl butyric acid); and (4) mitochondrial dysfunction (cyclosporin A). Oxidative stress, ER stress, mitochondrial dysfunction, apoptosis and autophagy were assessed using techniques including western blotting, immunofluorescence, RT-PCR, flow cytometry and TUNEL assay. To assess the relevance of the results in vivo, immunohistochemistry was used to detect the ER stress chaperon, 78 kDa glucose-regulated protein, and the ER sensor, activating transcription factor 6, in retinas from a mouse model of DR that mimics exposure of the retina to elevated glucose and elevated LDL levels, and in retinas from human participants with and without diabetes and DR. RESULTS Compared with native LDL, HOG-LDL activated oxidative and ER stress in HRCP, resulting in mitochondrial dysfunction, apoptosis and autophagy. In a mouse model of diabetes and hyperlipidaemia (vs mouse models of either condition alone), retinal ER stress was enhanced. ER stress was also enhanced in diabetic human retina and correlated with the severity of DR. CONCLUSIONS/INTERPRETATION Cell culture, animal, and human data suggest that oxidative stress and ER stress are induced by modified LDL, and are implicated in pericyte loss in DR.
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Affiliation(s)
- D Fu
- Harold Hamm Diabetes Center and Section of Endocrinology, University of Oklahoma Health Sciences Center, 1000 N Lincoln Blvd, Suite 2900, Oklahoma City, OK 73104, USA
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Hale I, Zhang X, Fu D, Dubcovsky J. Registration of wheat lines carrying the partial stripe rust resistance gene Yr36 without the Gpc-B1 high grain protein content allele. J Plant Regist 2012; 7:108-112. [PMID: 26962384 PMCID: PMC4780365 DOI: 10.3198/jpr2012.03.0150crg] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
While the high-temperature adult plant resistance gene Yr36 represents a promising source of quantitative and potentially race non-specific resistance to wheat stripe rust (causal organism Puccinia striiformis Westend. f. sp. tritici), its tight linkage (0.3 cM) with the high-grain protein content gene Gpc-B1 may hinder its introgression in certain cases, such as in soft wheat varieties requiring low grain protein content or in lines where the Gpc-B1 allele may be associated with a yield penalty. The development and registration of two donor lines, one tetraploid (Triticum turgidum L. ssp. durum; PI 656793) and one hexaploid (T. aestivum L. ssp. aestivum; PI 664549), each carrying the resistant wild emmer (T. turgidum ssp. dicoccoides) allele for Yr36 linked with the non-functional Gpc-B1 allele, are intended to overcome this potential limitation. Meiotic recombination events breaking the linkage between these two genes were discovered during the systematic screening of a population of 4,500 F2 durum plants (cv. Langdon background) used to fine map Yr36. One of the critical recombination events was selected for fixation by self-pollination and transferred to a California adapted spring hexaploid background (breeding line UC11105+10) through five generations of backcrossing. Genotypic and phenotypic data confirm the presence of Yr36 and the non-functional Gpc-B1 allele in both registered lines.
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Affiliation(s)
- I Hale
- Department of Plant Sciences, University of California - Davis, Davis, CA 95616
| | - X Zhang
- Department of Plant Sciences, University of California - Davis, Davis, CA 95616
| | - D Fu
- Department of Agronomy, Shandong Agricultural University, Tai'an, Shandong, China, 271018
| | - J Dubcovsky
- Department of Plant Sciences, University of California - Davis, Davis, CA 95616; Howard Hughes Medical Institute and Gordon & Betty Moore Foundation
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Fu D, Xiao C, Chai Y. e0022 Losartan attenuated cardiomyocyte apoptosis by increasing Akt activity in aortic banded rats with chronic heart failure. Heart 2010. [DOI: 10.1136/hrt.2010.208967.22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Fu D, Zhang H, Wang H, Wang B, Kuduvalli G, Maurer CR. TH-C-303A-02: Clinical Data Evaluation of Fiducial-Free Spine Tracking for CyberKnife Radiosurgery. Med Phys 2009. [DOI: 10.1118/1.3182626] [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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Hobbs R, Fu D, Pomper M, Ambinder R, Sgouros G. Bortezomib-induced enzyme-targeted radiotherapy (BETR) for AIDS-related malignancies: efficacy assessment by Monte Carlo and dosimetry modeling. Infect Agent Cancer 2009. [PMCID: PMC4261784 DOI: 10.1186/1750-9378-4-s2-p23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Dufresne AL, Fu D, Ambinder RF. Burkitt's lymphoma: differential killing of Epstein-Barr virus (EBV) (+) and EBV(-) Burkitt lymphoma cells in vitro and dose-dependent lytic induction by bortezomib in vivo. Infect Agent Cancer 2009. [PMCID: PMC4261768 DOI: 10.1186/1750-9378-4-s2-p16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Fu D, Kahn R, Wang B, Wang H, Mu Z, Kuduvalli G, Maurer C. Fiducial-free Lung Tumor Tracking for CyberKnife Radiosurgery. Int J Radiat Oncol Biol Phys 2008. [DOI: 10.1016/j.ijrobp.2008.06.235] [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: 11/26/2022]
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Wang F, Shen X, Xu S, Liu Y, Ma L, Zhao Q, Fu D, Pan Q, Feng S, Li X. Negative words on surgical wards result in therapeutic failure of patient-controlled analgesia and further release of cortisol after abdominal surgeries. Minerva Anestesiol 2008; 74:353-365. [PMID: 18612266] [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: 05/26/2023]
Abstract
BACKGROUND The perception of pain is germane to the environmental stimuli. Nurses on surgical wards are the main contributor in influencing patients' psychophysiological fettle. The aim of the study was to investigate the effect of different words, negative or positive, from nurses on postoperative pain therapy with patient-controlled analgesia (PCA). METHODS 1500 ASA I-II patients, who underwent abdominal hysterectomy, were screened and 771 were randomized into one of four groups. In the no words group (NW, N.=35), no words was delivered. The positive (PW, N.=248), partially negative (NW1, N.=241) and totally negative (NW2, N.=247) groups received corresponding words when treating with morphine PCA, the words were given singly at the 3(rd), 6(th), 12(th), 18(th) h and repeatedly at the 3(rd) and 6(th) h, and each group was redivided into six subgroups according to varying time points. Pain intensity, morphine consumption, side effects, overall sedation and satisfaction scores were recorded and plasma cortisol was tested. RESULTS A total of 614 patients completed the study. Negative words expressed significant influence on pain therapy at the 3(rd) and 6(th) h after surgeries (P<0.01), and this effect was more convenient in repeatedly treated patients (P<0.001). Positive and the 12(th) and 18(th) h negative words displayed little role in pain management. Morphine consumption, side effects, satisfaction and cortisol level converted with the change of the pain intensity. No intergroup differences were observed in patients' overall conditions. CONCLUSION Negative words on surgical wards influenced postoperative pain management at the earlier period of time after abdominal surgeries associated with the HPA axis activation.
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Affiliation(s)
- F Wang
- Department of Anesthesiology, Affiliated Nanjing Maternity and Child Health Care Hospital, Nanjing Medical University, Nanjing 210004, China.
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Stepanski EJ, Schwartzberg LS, Blakely LJ, Fu D, Fortner BV. Prevalence of insomnia and associated symptoms in patients with cancer. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.9098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
9098 Background: High rates of insomnia have been reported in patients undergoing treatment for cancer. The etiology of insomnia in these patients is unknown, but may be related to psychological factors (anxiety or depression), pain, treatment-related toxicity, or other co-morbid medical conditions. Insomnia has been linked with increased rates of depression, decreased quality of life, and increased fatigue in other patient populations, and is therefore important to understand in the context of cancer. Methods: The Patient Care Monitor (PCM; Supportive Oncology Services, Memphis, TN) is a validated software package assessing oncology-related patient symptoms using a 11- point Likert scale. This instrument is administered routinely to patients at each office visit at most community oncology clinics within the Accelerated Community Oncology Research Network (ACORN). Cross-sectional patient-reported data from 11,445 consecutive patients evaluated at ACORN sites are presented here. Results: The mean age of the sample was 61.5 (±14.2; range 18–95), and 74.3% was female. 25% had received chemotherapy within the prior month. The sample size by tumor site was as follows: breast- 3,316; GU- 2,966; GI- 1,634; hematologic- 1,373; lung- 1,224; head and neck- 501; skin- 321. 55% of the pts reported trouble sleeping, with 26% describing this trouble as moderate or severe. Mean values from patient reported symptoms on the PCM are reported below. 21.9% of patients without insomnia had recent chemotherapy, compared with 27.5% of patients with insomnia who had recent therapy (p<.001). Conclusions: Insomnia occurs commonly in patients with cancer, and is associated with significantly increased fatigue, pain, and depressed mood. Additional research will explore changes in insomnia over the course of treatment, and relate these to possible etiological factors. [Table: see text] No significant financial relationships to disclose.
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Affiliation(s)
- E. J. Stepanski
- Accelerated Community Oncology Research Network, Memphis, TN
| | | | - L. J. Blakely
- Accelerated Community Oncology Research Network, Memphis, TN
| | - D. Fu
- Accelerated Community Oncology Research Network, Memphis, TN
| | - B. V. Fortner
- Accelerated Community Oncology Research Network, Memphis, TN
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Fu D, Chong J, Foss C, Fox J, Wang S, Green G, Chen J, Lemas MV, Pomper M, Ambinder R. Imaging and therapy for Epstein-Barr virus-associated gastric cancer. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.4644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
4644 Background: Epstein-Barr virus (EBV) has been identified in a wide variety of malignancies, including gastric carcinomas. The virus encodes kinases that phosphorylate nucleoside analogs such as 2’-deoxy-2’-fluoro-5-iodo-1-beta-D- arabinofuranosyluracil (FIAU). We hypothesized that it might be possible to use the viral enzyme to specifically concentrate [125I]FIAU or [131I] FIAU in tumor cells harboring virus and thus deliver imaging and therapeutic radiation. Bortezomib is a potent stimulator of viral kinase expression in EBV tumor cell lines. Methods: We imaged lytic induction in vivo and evaluated the effect of [131I] FIAU on human cancer xenografts in SCID mice. These include a tumor line engineered to constitutively express the EBV thymide kinase (EBVTK), and a control engineered with a sham vector (SHAM), as well one EBV-associated human gastric tumor (KT tumor). Mice were treated with buffer, bortezomib (2μg/g), or radiolabeled FIAU or radiolabeled FIAU and bortezomib in combination. For imaging, mice, [125I]-FIAU and SPECT/CT were used. For therapy, 131I-FIAU was used and tumor dimensions were monitored with calipers. Results: SPECT/CT imaging with [125I]-FIAU of tumor-bearing SCID mice showed selective concentration of radiotracer in tumor tissue in EBVTK (3/3) and in EBV-associated KT tumors (3/3) when animals were pretreated with bortezomib. Treatment with buffer had no effect on 3 EBVTK tumors and 3 SHAM tumors all of which increased in volume. Treatment with 1.6 mCi of [131I]-FIAU alone led to tumor response in 3/3 mice with EBVTK tumors and 0/3 mice with SHAM tumors. Treatment with [131I]-FIAU alone had no effect on EBV KT tumor xenografts (0/3) and all tumors increased in volume. Treatment with bortezomib induced modest responses in all KT tumors. However, treatment with bortezomib and [131I]-FIAU led to marked tumor regression (>80%) in EBV-associated KT tumors (3/3). Conclusions: Treatment with bortezomib leads to selective concentration of radiolabeled FIAU in the EBV-associated tumor xenografts. In combination with [131I]-FIAU it leads to tumor regression. No significant financial relationships to disclose.
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Affiliation(s)
- D. Fu
- Johns Hopkins University, Baltimore, MD; Tokyo Metropolitan Toshima Hospital, Tokyo, Japan
| | - J. Chong
- Johns Hopkins University, Baltimore, MD; Tokyo Metropolitan Toshima Hospital, Tokyo, Japan
| | - C. Foss
- Johns Hopkins University, Baltimore, MD; Tokyo Metropolitan Toshima Hospital, Tokyo, Japan
| | - J. Fox
- Johns Hopkins University, Baltimore, MD; Tokyo Metropolitan Toshima Hospital, Tokyo, Japan
| | - S. Wang
- Johns Hopkins University, Baltimore, MD; Tokyo Metropolitan Toshima Hospital, Tokyo, Japan
| | - G. Green
- Johns Hopkins University, Baltimore, MD; Tokyo Metropolitan Toshima Hospital, Tokyo, Japan
| | - J. Chen
- Johns Hopkins University, Baltimore, MD; Tokyo Metropolitan Toshima Hospital, Tokyo, Japan
| | - M. V. Lemas
- Johns Hopkins University, Baltimore, MD; Tokyo Metropolitan Toshima Hospital, Tokyo, Japan
| | - M. Pomper
- Johns Hopkins University, Baltimore, MD; Tokyo Metropolitan Toshima Hospital, Tokyo, Japan
| | - R. Ambinder
- Johns Hopkins University, Baltimore, MD; Tokyo Metropolitan Toshima Hospital, Tokyo, Japan
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Blakely L, Schwartzberg LS, Henry D, Sabbath K, Fu D, Epperson A, Fortner BV. Randomized study of early intervention compared to standard intervention with darbepoetin-alpha (DA) for chemotherapy-induced anemia (CIA) in early stage breast cancer (ESBC). J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.19538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
19538 Background: Dose dense chemotherapy (DDC) with sequential doxorubicin/ cyclophosphamide followed by paclitaxel Q 14 days has an established place in the treatment of ESBC. However, moderate/severe CIA is a common consequence and therapeutic intervention is frequent. We sought to determine if early intervention at the onset of anemia with DA could reduce the emergence of more severe anemia during therapy and maintain quality of life compared to later intervention. Material and Methods: Non-iron deficient (ferritin > 50) patients (pts) with hemoglobin (Hb) levels >11.0 g/dl scheduled to receive adjuvant or neoadjuvant DDC for ESBC were recruited. Pts were randomly assigned prior to chemotherapy to initiate treatment with DA 200 μg q2w SQ when Hb < 11.5 g/dl (early intervention, EARLY), or DA 200 μg q2w SQ when Hb < 10.0 g/dl (standard intervention, STD) with end of treatment defined as 14 days after the last cycle of chemotherapy. Dose escalation for inadequate response of < 1 g/dl after 6 weeks of DA and dose withholding/reduction for Hb >13 g/dl were pre-specified. Results: The complete sample of 149 pts have been accrued (median age of 53.1, range 28.7 - 74.5). Analysis of fatigue ratings show a trend towards lower fatigue scores in EARLY at Hb nadir, and at end of study,(ANOVA, Group x Time interaction, p=.07). Discussion: Early intervention with DA significantly reduces the risk of developing moderate/severe CIA and increases time spent in the target range during DDC for ESBC. [Table: see text] No significant financial relationships to disclose.
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Affiliation(s)
- L. Blakely
- Accelerated Community Oncology Research Network, Memphis, TN
| | | | - D. Henry
- Accelerated Community Oncology Research Network, Memphis, TN
| | - K. Sabbath
- Accelerated Community Oncology Research Network, Memphis, TN
| | - D. Fu
- Accelerated Community Oncology Research Network, Memphis, TN
| | - A. Epperson
- Accelerated Community Oncology Research Network, Memphis, TN
| | - B. V. Fortner
- Accelerated Community Oncology Research Network, Memphis, TN
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