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Li J, Wen Q, Dai J, Wang B, Lu Y, Wu Z, Fan Y, Zeng F, Chen Y, Zhang Y, Chen R, Fu S. An oral bioactive chitosan-decorated doxorubicin nanoparticles/bacteria bioconjugates enhance chemotherapy efficacy in an in-situ breast cancer model. Int J Biol Macromol 2024; 267:131428. [PMID: 38583834 DOI: 10.1016/j.ijbiomac.2024.131428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 04/04/2024] [Accepted: 04/04/2024] [Indexed: 04/09/2024]
Abstract
Breast cancer is the second leading cause of cancer-related deaths among women worldwide. Despite significant advancements in chemotherapy, its effectiveness is often limited by poor drug distribution and systemic toxicity caused by the weak targeting ability of conventional therapeutic agents. The hypoxic tumor microenvironment (TME) also plays a vital role in treatment outcomes. Oral anticancer therapeutic agents have gained popularity and show promising results due to their ease of repeated administration. This study introduces autopilot biohybrids (Bif@BDC-NPs) for the effective delivery of doxorubicin (DOX) to the tumor site. This hybrid combines albumin-encapsulated DOX nanoparticles (BD-NPs) coated with chitosan (CS) for breast cancer chemotherapy, along with anaerobic Bifidobacterium infantis (B. infantis, Bif) serving as self-propelled motors. Due to Bif's specific anaerobic properties, Bif@BDC-NPs precisely anchor hypoxic regions of tumor tissue and significantly increase drug accumulation at the tumor site, thereby promoting tumor cell death. In an in-situ mouse breast cancer model, Bif@BDC-NPs achieved 94 % tumor inhibition, significantly prolonging the median survival of mice to 62 days, and reducing the toxic side effects of DOX. Therefore, the new bacteria-driven oral drug delivery system, Bif@BDC-NPs, overcomes multiple physiological barriers and holds great potential for the precise treatment of solid tumors.
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Affiliation(s)
- Jianmei Li
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, PR China
| | - Qian Wen
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, PR China
| | - Jie Dai
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, PR China
| | - Biqiong Wang
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, PR China
| | - Yun Lu
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, PR China
| | - Zhouxue Wu
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, PR China
| | - Yu Fan
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, PR China
| | - Fancai Zeng
- Laboratory of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southwest Medical University, Luzhou, Sichuan 646000, PR China
| | - Yue Chen
- Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, Luzhou, Sichuan 646000, PR China
| | - Yan Zhang
- Department of Oncology, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, Sichuan 646000, PR China.
| | - Renjin Chen
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, PR China.
| | - Shaozhi Fu
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, PR China; Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, Luzhou, Sichuan 646000, PR China.
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Li H, Zeng F, Huang C, Pu Q, Thomas ER, Chen Y, Li X. The potential role of glucose metabolism, lipid metabolism, and amino acid metabolism in the treatment of Parkinson's disease. CNS Neurosci Ther 2024; 30:e14411. [PMID: 37577934 PMCID: PMC10848100 DOI: 10.1111/cns.14411] [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: 06/22/2023] [Revised: 07/31/2023] [Accepted: 08/01/2023] [Indexed: 08/15/2023] Open
Abstract
PURPOSE OF REVIEW Parkinson's disease (PD) is a common neurodegenerative disease, which can cause progressive deterioration of motor function causing muscle stiffness, tremor, and bradykinesia. In this review, we hope to describe approaches that can improve the life of PD patients through modifications of energy metabolism. RECENT FINDINGS The main pathological features of PD are the progressive loss of nigrostriatal dopaminergic neurons and the production of Lewy bodies. Abnormal aggregation of α-synuclein (α-Syn) leading to the formation of Lewy bodies is closely associated with neuronal dysfunction and degeneration. The main causes of PD are said to be mitochondrial damage, oxidative stress, inflammation, and abnormal protein aggregation. Presence of abnormal energy metabolism is another cause of PD. Many studies have found significant differences between neurodegenerative diseases and metabolic decompensation, which has become a biological hallmark of neurodegenerative diseases. SUMMARY In this review, we highlight the relationship between abnormal energy metabolism (Glucose metabolism, lipid metabolism, and amino acid metabolism) and PD. Improvement of key molecules in glucose metabolism, fat metabolism, and amino acid metabolism (e.g., glucose-6-phosphate dehydrogenase, triglycerides, and levodopa) might be potentially beneficial in PD. Some of these metabolic indicators may serve well during the diagnosis of PD. In addition, modulation of these metabolic pathways may be a potential target for the treatment and prevention of PD.
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Affiliation(s)
- Hangzhen Li
- Department of Biochemistry and Molecular Biology, School of Basic Medical ScienceSouthwest Medical UniversityLuzhouChina
| | - Fancai Zeng
- Department of Biochemistry and Molecular Biology, School of Basic Medical ScienceSouthwest Medical UniversityLuzhouChina
| | - Cancan Huang
- Department of DermatologyThe Affiliated Hospital of Southwest Medical UniversityLuzhouChina
| | - Qiqi Pu
- Department of Biochemistry and Molecular Biology, School of Basic Medical ScienceSouthwest Medical UniversityLuzhouChina
| | | | - Yan Chen
- Department of DermatologyThe Affiliated Hospital of Southwest Medical UniversityLuzhouChina
| | - Xiang Li
- Department of Biochemistry and Molecular Biology, School of Basic Medical ScienceSouthwest Medical UniversityLuzhouChina
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Lu Y, Chen L, Wu Z, Zhou P, Dai J, Li J, Wen Q, Fan Y, Zeng F, Chen Y, Fu S. Self-driven bioactive hybrids co-deliver doxorubicin and indocyanine green nanoparticles for chemo/photothermal therapy of breast cancer. Biomed Pharmacother 2023; 169:115846. [PMID: 37944443 DOI: 10.1016/j.biopha.2023.115846] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 09/03/2023] [Revised: 10/27/2023] [Accepted: 11/05/2023] [Indexed: 11/12/2023] Open
Abstract
Breast cancer is characterized by insidious onset, rapid progression, easy recurrence, and metastasis. Conventional monotherapies are usually ineffective due to insufficient drug delivery. Therefore, the combination of multimodal therapy with tumor microenvironment (TME)-responsive nanoplatforms is increasingly being considered for the targeted treatment of breast cancer. We synthesized bioactive hybrid nanoparticles for synergistic chemotherapy and photothermal therapy. Briefly, doxorubicin (DOX) and indocyanine green (ICG)-loaded nanoparticles (DI) of average particle size 113.58 ± 2.14 nm were synthesized, and their surface were modified with polydopamine (PDA) and attached to the anaerobic probiotic Bifidobacterium infantis (Bif). The bioactive Bif@DIP hybrid showed good photothermal conversion efficiency of about 38.04%. In addition, the self-driving ability of Bif allowed targeted delivery of the PDA-coated DI nanoparticles (DIP) to the hypoxic regions of the tumor. The low pH and high GSH levels in the TME stimulated the controlled release of DOX and ICG from the Bif@DIP hybrid, which then triggered apoptosis of tumor cells and induced immunogenic cell death (ICD), resulting in effective and sustained anti-tumor effect with minimum systemic toxicity. Thus, the self-driven Bif@DIP hybrid is a promising nanodrug for the targeted chemotherapy and photothermal therapy against solid cancers.
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Affiliation(s)
- Yun Lu
- Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, PR China
| | - Lan Chen
- Department of Oncology, the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, Sichuan 646000, PR China
| | - Zhouxue Wu
- Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, PR China
| | - Ping Zhou
- Department of Radiology, the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, PR China
| | - Jie Dai
- Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, PR China
| | - Jianmei Li
- Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, PR China
| | - Qian Wen
- Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, PR China
| | - Yu Fan
- Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, PR China
| | - Fancai Zeng
- Laboratory of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southwest Medical University, Luzhou, Sichuan 646000, PR China
| | - Yue Chen
- Department of Nuclear Medicine, the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, PR China; Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, Luzhou, Sichuan 646000, PR China
| | - Shaozhi Fu
- Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, PR China; Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, Luzhou, Sichuan 646000, PR China.
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Dai J, Li J, Zhang Y, Wen Q, Lu Y, Fan Y, Zeng F, Qian Z, Zhang Y, Fu S. GM-CSF augmented the photothermal immunotherapeutic outcome of self-driving gold nanoparticles against a mouse CT-26 colon tumor model. Biomater Res 2023; 27:105. [PMID: 37872620 PMCID: PMC10594909 DOI: 10.1186/s40824-023-00430-6] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 09/03/2023] [Indexed: 10/25/2023] Open
Abstract
BACKGROUND Hypoxia is a frequent characteristic observed in solid tumors and is strongly associated with tumor metastasis, angiogenesis, and drug resistance. While the vasculature of hypoxic tumor tissues poses obstacles to the efficient administration of conventional drugs, it may prove advantageous in sustaining hyperthermia. Photothermal therapy (PTT) offers a promising treatment strategy that utilizes the activation of photosensitizers to produce heat, thus facilitating the selective ablation of tumor tissues. METHOD To enhance the accumulation of photothermal agents in tumor tissue and improve the effectiveness of PTT, we developed a self-propelled hybrid called Bif@PAu-NPs. This hybrid consists of polydopamine (PDA)-coated gold nanoparticles (Au-NPs) loaded onto the anaerobic Bifidobacterium infantis (Bif). RESULTS The Bif@PAu-NPs actively aggregated at the tumor site because the ability of Bif can target hypoxic regions, and PAu-NPs achieved precise PTT due to their high photothermal conversion efficiency (η = 67.8%). The tumor tissues were ablated by PTT, resulting in the release of antigens through immunogenic cell death (ICD), which stimulates an immune response. The inclusion of GM-CSF enhanced the immune response by recruiting dendritic cells and initiating long-term anti-tumor immunity. CONCLUSION The Bif@PAu-NPs hybrid effectively suppressed the growth of both primary tumors and re-challenged tumors. The utilization Bif@PAu-NPs in conjunction with GM-SCF exhibits great potential as a photothermal-immunotherapeutic strategy for precisely treating solid tumors. In this study, the bacterial Bif@PAu-NPs biohybrid is exploited the self-driving ability of anaerobic Bifidobacterium infantis to deliver polydopamine-modified gold nanoparticles to hypoxic region of tumor. Under irradiation with 808 nm NIR laser, the hybrid exerts precise photothermal therapy to stimulate the immune response, which is further enhanced by GM-CSF, leading to recruitment of dendritic cells and initiation of a long-term anti-tumor immunity remember to prevent tumor recurrence.
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Affiliation(s)
- Jie Dai
- Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, P.R. China
| | - Jianmei Li
- Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, P.R. China
| | - Yuqin Zhang
- Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, P.R. China
| | - Qian Wen
- Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, P.R. China
| | - Yun Lu
- Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, P.R. China
| | - Yu Fan
- Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, P.R. China
| | - Fancai Zeng
- Laboratory of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southwest Medical University, Luzhou, 646000, Sichuan, P.R. China
| | - Zhiyong Qian
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu, 610041, Sichuan, P.R. China
| | - Yan Zhang
- Department of Oncology, the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, P.R. China.
| | - Shaozhi Fu
- Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, P.R. China.
- Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, Luzhou, 646000, Sichuan, P.R. China.
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Lu T, Zeng F, Hu Y, Lu T, Zhong F, Chen B, Zhang H, Guo Q, Pan J, Gong X, Lu T, Xia Y, Li JG. Refining the TNM M1 Subcategory for De Novo Metastatic Nasopharyngeal Carcinoma. Int J Radiat Oncol Biol Phys 2023; 117:e603. [PMID: 37785821 DOI: 10.1016/j.ijrobp.2023.06.1968] [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: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) To refine oligometastatic disease (OMD) and construct M1 categories for de novo metastatic nasopharyngeal carcinoma (dmNPC) MATERIALS/METHODS: We included 504 patients who received chemotherapy and/or radiotherapy between 2010-2019 from two centers (training and validation cohort). Multivariable analyses were used to evaluate the prognostic value of OMD and metastatic organs, which were then used to construct M1 categories RESULTS: The median follow-up for the training and validation cohorts were 46 and 57 months, respectively. OMD (≤ 2 metastatic organs and ≤ 5 metastatic lesions) had the highest C-index compared to the other models in both cohorts. Multivariable analyses, in which both OMD and liver metastases did not coexist, revealed that OMD (hazard ratio [HR] = 2.110 and 1.598) and liver metastases (HR = 1.572 and 1.452) were prognostic factors for overall survival (OS) in both cohorts. Based on OMD and liver metastases, patients with dmNPC were divided into M1a (OMD without liver metastases) and M1b (OMD with liver metastases or polymetastatic disease). The 3-year OS of the M1a patients was better than that of the M1b patients in both cohorts (both p < 0.001). In the anti-PD1 mAb and chemotherapy cohorts, patients with M1ahad a significantly better median progression-free survival than those with M1b (p < 0.001) CONCLUSION: OMD with ≤ 2 metastatic organs and ≤ 5 metastatic lesions is an appropriate definition for dmNPC. M1 subcategories constructed based on OMD and liver metastases improved prognostic evaluation for patients with dmNPC who received chemotherapy or antiPD1 mAb treatment.
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Affiliation(s)
- T Lu
- Department of Radiation Oncology, Jiangxi Cancer Hospital, Nanchang, China
| | - F Zeng
- Jiangxi Cancer Hospital, Nanchang, Jiangxi, China
| | - Y Hu
- Department of Radiation Oncology, Fujian Cancer Hospital & Fujian Medical University Cancer Hospital, Fuzhou, China
| | - T Lu
- Jiangxi Cancer Hospital, Nanchang, Jiangxi, China
| | - F Zhong
- Jiangxi Cancer Hospital, Nanchang, Jiangxi, China
| | - B Chen
- Department of Radiation Oncology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, China
| | - H Zhang
- Hubei Cancer Hospital, Wuhan, Hubei, China
| | - Q Guo
- Department of Radiation Oncology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, China
| | - J Pan
- Department of Radiation Oncology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, China
| | - X Gong
- Jiangxi Cancer Hospital, Nanchang, Jiangxi, China; Jiangxi Cancer Hospital, Nanchang, China
| | - T Lu
- Jiangxi Cancer Hospital, Nanchang, China
| | - Y Xia
- Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - J G Li
- Jiangxi Cancer Hospital, Nanchang, Jiangxi, China
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Lei F, Zeng F, Yu X, Deng Y, Zhang Z, Xu M, Ding N, Tian J, Li C. Oral hydrogel nanoemulsion co-delivery system treats inflammatory bowel disease via anti-inflammatory and promoting intestinal mucosa repair. J Nanobiotechnology 2023; 21:275. [PMID: 37596598 PMCID: PMC10436423 DOI: 10.1186/s12951-023-02045-4] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Accepted: 08/01/2023] [Indexed: 08/20/2023] Open
Abstract
BACKGROUND Due to oral nano-delivery systems for the treatment of inflammatory bowel disease (IBD) are often failed to accumulated to the colonic site and could not achieve controlled drug release, it's urgent to develop a microenvironment responsive drug delivery to improve therapy efficacy. Inflammation at the IBD site is mainly mediated by macrophages, which are the key effector cells. Excessive inflammation leads to oxidative stress and intestinal mucosal damage. The use of curcumin (CUR) and emodin (EMO) together for the treatment of IBD is promising due to their respective anti-inflammatory and intestinal mucosal repair effects. In view of the pH gradient environment of gastrointestinal tract, here we prepared pH-responsive sodium alginate (SA) hydrogel-coated nanoemulsions to co-deliver CUR and EMO (CUR/EMO NE@SA) to achieve controlled drug release and specifically target macrophages of the colon. RESULTS In this study, a pH-responsive CUR/EMO NE@SA was successfully developed, in which the CUR/EMO NE was loaded by chitosan and further crosslinked with sodium alginate. CUR/EMO NE@SA had a pH-responsive property and could achieve controlled drug release in the colon. The preparation could significantly alleviate and improve the colon inflammatory microenvironment by decreasing TNF-α and IL-6 expression, increasing IL-10 expression, scavenging reactive oxygen species in macrophages, and by ameliorating the restoration of intestinal mucosal tight junction protein expression. Furthermore, we revealed the molecular mechanism of the preparation for IBD treatment, which might due to the CUR and EMO synergic inhibition of NF-κB to improve the pro-inflammatory microenvironment. Our study provides a new IBD therapy strategy via synergically inhibiting inflammatory, repairing mucosal and clearing ROS by pH-sensitive hydrogel-encapsulated nanoemulsion drug delivery system, which might be developed for other chronic inflammatory disease treatment. CONCLUSIONS It's suggested that pH-sensitive hydrogel-coated nanoemulsion-based codelivery systems are a promising combinatorial platform in IBD.
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Affiliation(s)
- Fenting Lei
- Analysis and Testing Center, School of Pharmacy, Southwest Medical University, 1-1 Xianglin Road, Luzhou, 646000, Sichuan, People's Republic of China
| | - Fancai Zeng
- Laboratory of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southwest Medical University, Luzhou, 646000, China
| | - Xin Yu
- Chinese Pharmacy Laboratory, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
| | - Yiping Deng
- Analysis and Testing Center, School of Pharmacy, Southwest Medical University, 1-1 Xianglin Road, Luzhou, 646000, Sichuan, People's Republic of China
| | - Zongquan Zhang
- Department of Pharmaceutical Sciences, School of Pharmacy, Southwest Medical University, 1-1 Xianglin Road, Luzhou, 646000, Sichuan, People's Republic of China
| | - Maochang Xu
- Department of Pharmaceutical Sciences, School of Pharmacy, Southwest Medical University, 1-1 Xianglin Road, Luzhou, 646000, Sichuan, People's Republic of China
| | - Nianhui Ding
- School of Pharmacy, Southwest Medical University, Luzhou, 646000, China
| | - Ji Tian
- Analysis and Testing Center, School of Pharmacy, Southwest Medical University, 1-1 Xianglin Road, Luzhou, 646000, Sichuan, People's Republic of China.
| | - Chunhong Li
- Department of Pharmaceutical Sciences, School of Pharmacy, Southwest Medical University, 1-1 Xianglin Road, Luzhou, 646000, Sichuan, People's Republic of China.
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Ren J, Zeng F, Mebrahtu C, Palkovits R. Understanding Promotional Effects of Trace Oxygen in CO
2
Methanation over Ni/ZrO
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Catalysts. CHEM-ING-TECH 2022. [DOI: 10.1002/cite.202255023] [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: 11/06/2022]
Affiliation(s)
- J. Ren
- RWTH Aachen University Chair of Heterogeneous Catalysis and Chemical Technology, ITMC Worringerweg 2 52074 Aachen Germany
| | - F. Zeng
- RWTH Aachen University Chair of Heterogeneous Catalysis and Chemical Technology, ITMC Worringerweg 2 52074 Aachen Germany
| | - C. Mebrahtu
- RWTH Aachen University Chair of Heterogeneous Catalysis and Chemical Technology, ITMC Worringerweg 2 52074 Aachen Germany
| | - R. Palkovits
- RWTH Aachen University Chair of Heterogeneous Catalysis and Chemical Technology, ITMC Worringerweg 2 52074 Aachen Germany
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Wan Y, Zeng F, Tan H, Lu Y, Zhang Y, Zhao L, You R. Cost-effectiveness analyses of denosumab for osteoporosis: a systematic review. Osteoporos Int 2022; 33:979-1015. [PMID: 35059777 DOI: 10.1007/s00198-021-06268-9] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 12/08/2021] [Indexed: 10/19/2022]
Abstract
UNLABELLED This paper systematically reviewed and assessed all retrievable pharmacoeconomic studies on denosumab for the treatment of osteoporosis. Denosumab was more cost-effective in patients with older age, prior fracture experience, lower BMD T-scores, and more risk factors. ESCEO-IOF guidelines were more applicable to improve the quality of pharmacoeconomic studies in osteoporosis. INTRODUCTION There are many pharmacoeconomic studies on denosumab for osteoporosis. However, the corresponding reviews are outdated or incomplete and need to be updated and refined. This article aims to systematically review and evaluate all retrievable pharmacoeconomic studies of denosumab for osteoporosis. METHODS A systematic literature search was performed utilizing PubMed, EMBASE(Ovid), Proquest(EconLit), Chongqing VIP, WanFang Database, and Chinese National Knowledge Infrastructure to identify full-text articles published before September 2021. The quality of full-text articles was evaluated by the Consolidated Health Economic Evaluation Reporting Standards(CHEERS) and the European Society for Clinical and Economic Aspects of Osteoporosis, Osteoarthritis and Musculoskeletal Diseases International Osteoporosis Foundation guideline(ESCEO-IOF). RESULTS In total, 21 full-text articles were eligible for inclusion. Denosumab for postmenopausal osteoporosis was not dominant compared to zoledronate and teriparatide. However, denosumab was dominant compared with strontium ranelate, raloxifene, and ibandronate in patients over 65 years. The probabilities of denosumab being cost-effective or dominant were more than 85% compared with no treatment and risedronate in patients aged over 70 years. Compared to alendronate, the highest rate of denosumab dominance occurred in patients aged 65 to 75 years, at about 65%. Most of the articles had higher CHEERS scores than ESCEO-IOF scores (converted into percentages). CONCLUSIONS The cost-effectiveness of denosumab for the treatment of osteoporosis was influenced by multiple factors. Generally, denosumab was more cost-effective in patients with older age, prior fracture experience, lower BMD T-scores, and more risk factors. ESCEO-IOF guidelines were more applicable to improve the transparency, generalization, and quality of pharmacoeconomic studies in osteoporosis.
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Affiliation(s)
- Y Wan
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei, China
| | - F Zeng
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei, China
| | - H Tan
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei, China
| | - Y Lu
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei, China
| | - Y Zhang
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei, China
| | - L Zhao
- Department of Pharmacy, Peking University Third Hospital, 49 North Garden Road, Haidian District, Beijing, 100191, China
| | - R You
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei, China.
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Chen HQ, Feng XQ, Xu CJ, Zhang YP, Zeng F, Zhong ZA, Xia YL, Han CM. [Application effects of feedforward control theory in the rollover bed treatment of mass patients with burn-explosion combined injury]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2022; 38:373-377. [PMID: 35462517 DOI: 10.3760/cma.j.cn501120-20201202-00514] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To explore the application effects of feedforward control theory in the rollover bed treatment of mass patients with burn-explosion combined injury. Methods: A retrospective observational research was conducted. From June 13 to 14, 2020, 15 patients with severe burn-explosion combined injury caused by liquefied natural gas tank car explosion and conforming to the inclusion criteria were admitted to the Second Affiliated Hospital of Zhejiang University School of Medicine. There were 13 males and 2 females, aged 33-92 (66±17) years. All the patients were treated with rollover bed from 48 h post admission, and the feedforward control theory was introduced, including establishing a special feedforward control management team for rollover bed, clarifying the duties of the medical staff in the rollover bed treatment of patients, implementing the cooperation strategy of multidisciplinary physician, training and examining for 80 nurses in the temporarily organized nurse team in the form of "rollover bed workshop", and formulating the checklist and valuation list of rollover bed treatment for continuous quality control. The frequency and the total number of turning over, and successful rate of one-time posture change with the rollover bed of patients within 30 days of admission were recorded, the occurrences of adverse events caused by improper operation for the rollover bed during the treatment were observed, including respiratory and cardiac arrests, treatment interruption, unplanned extubation, bed falling, and skin graft displacement. The lowest levels of arterial partial pressure of oxygen (PaO2) and arterial partial pressure of carbon dioxide (PaCO2), the number of patients with oxygenation index>300 mmHg (1 mmHg=0.133 kPa), and the occurrence of acute respiratory distress syndrome (ARDS) of patients within 2 days of admission and on the 30th day of admission were recorded. Results: Within 30 days of admission, the patients were turned over with the rollover bed for 2 to 6 times each day, with a total of 1 320 turning over operations, the successful rate of one-time posture change reached 99.9% (1 319/1 320), and no adverse event occurred. Within 2 days of admission, the lowest levels of PaO2 and PaCO2 of the patients were (100±19) and (42±4) mmHg, respectively, and the number of patients with mild, moderate, and severe ARDS were 10, 2, and 3, respectively, and none of the patients had oxygenation index>300 mmHg. On the 30th day of admission, the lowest levels of PaO2 and PaCO2 of the patients were (135±28) and (37±8) mmHg, respectively, 3 patients developed moderate ARDS, 1 patient developed severe ARDS, and 11 patients had oxygenation index>300 mmHg. Conclusions: The introduction of feedforward control theory in the treatment of rollover bed of mass patients with burn-explosion combined injury can ensure safe and successful completion of turning over with the rollover bed, promote the repair of burn wound, and improve respiratory function, and therefore improve the treatment quality of patients.
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Affiliation(s)
- H Q Chen
- Department of Burn and Wound Repair, the Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China
| | - X Q Feng
- Department of Burn and Wound Repair, the Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China
| | - C J Xu
- Department of Burn and Wound Repair, the Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China
| | - Y P Zhang
- Department of Burn and Wound Repair, the Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China
| | - F Zeng
- Department of Burn and Wound Repair, the Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China
| | - Z A Zhong
- Department of Burn and Wound Repair, the Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China
| | - Y L Xia
- Department of Burn and Wound Repair, the Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China
| | - C M Han
- Department of Burn and Wound Repair, the Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China
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10
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Guo N, Chen Y, Zhang Y, Deng Y, Zeng F, Li X. Potential Role of APEX1 During Ferroptosis. Front Oncol 2022; 12:798304. [PMID: 35311089 PMCID: PMC8927806 DOI: 10.3389/fonc.2022.798304] [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: 10/20/2021] [Accepted: 02/02/2022] [Indexed: 11/25/2022] Open
Abstract
Ferroptosis is a recently discovered category of programmed cell death. It is much different from other types of cell death such as apoptosis, necrosis and autophagy. The main pathological feature of ferroptosis is the accumulation of iron-dependent lipid peroxidation. The typical changes in the morphological features of ferroptosis include cell volume shrinkage and increased mitochondrial membrane area. The mechanisms of ferroptosis may be mainly related to lipid peroxidation accumulation, imbalance in amino acid antioxidant system, and disturbance of iron metabolism. Besides, hypoxia-inducible factor (HIF), nuclear factor-E2-related factor 2 (Nrf2), and p53 pathway have been demonstrated to be involved in ferroptosis. At present, the molecular mechanisms of ferroptosis pathway are still unmapped. In this review, an outlook has been put forward about the crucial role of apurinic/apyrimidinic endodeoxyribonuclease 1 (APEX1) in the regulation of ferroptosis. APEX1 plays an important role in the regulation of intracellular redox balance and can be used as a potential inhibitor of ferroptotic cell death. Bioinformatics analysis indicated that the mRNA level of APEX1 is decreased in cases of ferroptosis triggered by erastin. Besides, it was found that there was a significant correlation between APEX1 and genes in the ferroptosis pathway. We have discussed the possibility to employ APEX1 inducers or inhibitors in the regulation of ferroptosis as a new strategy for the treatment of various human diseases.
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Affiliation(s)
- Nan Guo
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Southwest Medical University, Luzhou, China
| | - Yan Chen
- Department of Dermatology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Yuhong Zhang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Southwest Medical University, Luzhou, China
| | - Yonghao Deng
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Southwest Medical University, Luzhou, China
| | - Fancai Zeng
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Southwest Medical University, Luzhou, China
| | - Xiang Li
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Southwest Medical University, Luzhou, China
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11
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Li X, Wang W, Yan J, Zeng F. Glutamic Acid Transporters: Targets for Neuroprotective Therapies in Parkinson's Disease. Front Neurosci 2021; 15:678154. [PMID: 34220434 PMCID: PMC8242205 DOI: 10.3389/fnins.2021.678154] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 05/07/2021] [Indexed: 12/21/2022] Open
Abstract
Parkinson's disease (PD) is a common neurodegenerative disease in middle-aged and elderly individuals. At present, no effective drug has been developed to treat PD. Although a variety of drugs exist for the symptomatic treatment of PD, they all have strong side effects. Most studies on PD mainly focus on dopaminergic neurons. This review highlights the function of glutamic acid transporters (GLTs), including excitatory amino acid transporters (EAATs) and vesicular glutamate transporters (VGLUTs), during the development of PD. In addition, using bioinformatics, we compared the expression of different types of glutamate transporter genes in the cingulate gyrus of PD patients and healthy controls. More importantly, we suggest that the functional roles of glutamate transporters may prove beneficial in the treatment of PD. In summary, VGLUTs and EAATs may be potential targets in the treatment of PD. VGLUTs and EAATs can be used as clinical drug targets to achieve better efficacy. Through this review article, we hope to enable future researchers to improve the condition of PD patients.
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Affiliation(s)
- Xiang Li
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Southwest Medical University, Luzhou, China
| | - Wenjun Wang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Southwest Medical University, Luzhou, China.,Institute for Cancer Medicine and School of Basic Medical Sciences, Southwest Medical University, Luzhou, China
| | - Jianghong Yan
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Southwest Medical University, Luzhou, China
| | - Fancai Zeng
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Southwest Medical University, Luzhou, China
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12
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Zhang Z, Tariq A, Zeng F, Chai X, Graciano C. Involvement of soluble proteins in growth and metabolic adjustments of drought-stressed Calligonum mongolicum seedlings under nitrogen addition. Plant Biol (Stuttg) 2021; 23:32-43. [PMID: 33012086 DOI: 10.1111/plb.13190] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 08/07/2020] [Accepted: 09/24/2020] [Indexed: 05/26/2023]
Abstract
The planting of seedlings is the most effective measure for vegetation restoration. However, this practice is challenging in desert ecosystems where water and nutrients are scarce. Calligonum mongolicum is a sand-fixing pioneer shrub species, and its adaptive strategy for nitrogen (N) deposition and drought is poorly understood. Thus, in a pot experiment, we studied the impacts of four N levels (0, 3, 6, 9 gN·m-2 ·year-1 ) under drought or a well-watered regime on multiple eco-physiological responses of 1-year-old C. mongolicum seedlings. Compared to well-watered conditions, drought considerably influenced seedling growth by impairing photosynthesis, osmolyte accumulation and activity of superoxide dismutase and enzymes related to N metabolism. Nitrogen addition improved the productivity of drought-stressed seedlings, as revealed by increased water use efficiency, enhanced superoxide dismutase and nitrite reductase activity and elevated N and phosphorus (P) levels in seedlings. Nevertheless, the addition of moderate to high levels of N (6-9 gN·m-2 ·year-1 ) impaired net photosynthesis, osmolyte accumulation and nitrate reductase activity. N addition and water regimes did not markedly change the N:P ratios of aboveground parts; while more biomass and nutrients were allocated to fine roots to assimilate the insufficient resources. Soluble protein in assimilating shoots might play a vital role in adaptation to the desert environment. The response of C. mongolicum seedlings to N addtion and drought involved an interdependency between soluble protein and morphological, physiological and biochemical processes. These findings provide an important reference for vegetation restoration in arid lands under global change.
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Affiliation(s)
- Z Zhang
- Xinjiang Key Laboratory of Desert Plant Root Ecology and Vegetation Restoration, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- Cele National Station of Observation and Research for Desert-Grassland Ecosystems, Cele, China
- University of Chinese Academy of Sciences, Beijing, China
| | - A Tariq
- Xinjiang Key Laboratory of Desert Plant Root Ecology and Vegetation Restoration, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- Cele National Station of Observation and Research for Desert-Grassland Ecosystems, Cele, China
| | - F Zeng
- Xinjiang Key Laboratory of Desert Plant Root Ecology and Vegetation Restoration, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- Cele National Station of Observation and Research for Desert-Grassland Ecosystems, Cele, China
| | - X Chai
- Xinjiang Key Laboratory of Desert Plant Root Ecology and Vegetation Restoration, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- Cele National Station of Observation and Research for Desert-Grassland Ecosystems, Cele, China
- University of Chinese Academy of Sciences, Beijing, China
| | - C Graciano
- Instituto de Fisiología Vegetal, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de La Plata, Buenos Aires, Argentina
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Wang W, Huang L, Thomas ER, Hu Y, Zeng F, Li X. Notoginsenoside R1 Protects Against the Acrylamide-Induced Neurotoxicity via Upregulating Trx-1-Mediated ITGAV Expression: Involvement of Autophagy. Front Pharmacol 2020; 11:559046. [PMID: 32982756 PMCID: PMC7493052 DOI: 10.3389/fphar.2020.559046] [Citation(s) in RCA: 1] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 08/17/2020] [Indexed: 01/07/2023] Open
Abstract
Acrylamide (ACR) is a common chemical used in various industries and it said to have chronic neurotoxic effects. It is produced during tobacco smoking and is also generated in high-starch foods during heat processing. Notoginsenoside R1 (NR1) is a traditional Chinese medicine, which is used to improve the blood circulation and clotting. The objective of this study was to investigate the mechanism of ACR-triggered neurotoxicity and to identify the protective role of NR1 by upregulating thioredoxin-1 (Trx-1). Our results have shown that NR1 could block the spatial and cognitive impairment caused by ACR administration. Bioinformatics analysis revealed that Trx-1 regulated autophagy via Integrin alpha V (ITGAV). NR1 could resist the ACR-induced neurotoxicity by upregulating thioredoxin-1 in PC12 cells and mice. The autophagy-related proteins like autophagy-related gene (ATG) 4B, Cathepsin D, LC3 II, lysosomal-associated membrane protein 2a (LAMP2a), and ITGAV were restored to normal levels by NR1 treatment in both PC12 cells and mice. Besides, we also found that overexpression of Trx-1 resisted ACR-induced autophagy in PC12 cells and downregulation of Trx-1 triggered autophagy induced by ACR in PC12 cells. Therefore, it could be concluded that Trx-1 was involved in the autophagy pathway. Besides, we also found that ITGAV was an intermediate node linking Trx-1 and the autophagy pathway.
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Affiliation(s)
- Wenjun Wang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Southwest Medical University, Luzhou, China.,Institute for Cancer Medicine and School of Basic Medical Sciences, Southwest Medical University, Luzhou, China
| | - Lu Huang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Southwest Medical University, Luzhou, China
| | | | - Yingying Hu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Southwest Medical University, Luzhou, China
| | - Fancai Zeng
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Southwest Medical University, Luzhou, China
| | - Xiang Li
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Southwest Medical University, Luzhou, China
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Beine A, Zeng F, Negahdar L, Palkovits S, Palkovits R. Optimization of the oxygen evolution reaction – Electrode development and kinetic investigations. CHEM-ING-TECH 2020. [DOI: 10.1002/cite.202055013] [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: 11/10/2022]
Affiliation(s)
- A. K. Beine
- Max Planck Institute for Chemical Energy Conversion Group of Solid Molecular Catalysts Stiftstr. 34–36 45470 Mülheim an der Ruhr Germany
| | - F. Zeng
- RWTH Aachen University Institute of Technical and Macromolecular Chemistry Worringerweg 2 52074 Aachen Germany
| | - L. Negahdar
- RWTH Aachen University Institute of Technical and Macromolecular Chemistry Worringerweg 2 52074 Aachen Germany
| | - S. Palkovits
- RWTH Aachen University Institute of Technical and Macromolecular Chemistry Worringerweg 2 52074 Aachen Germany
| | - R. Palkovits
- RWTH Aachen University Institute of Technical and Macromolecular Chemistry Worringerweg 2 52074 Aachen Germany
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15
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Yang XL, Ren J, Xu Z, Lei WW, Yang K, Kong YG, Qu JN, Liao H, He Y, Chen HD, Zeng F, Wang Y, Hua QQ. [Prevention and control strategies and methods of novel coronavirus epidemic infection in department of otolaryngology head and neck surgery in hospital]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2020; 55:316-321. [PMID: 32306626 DOI: 10.3760/cma.j.cn115330-20200205-00237] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- X L Yang
- Deaprtment of Otorhinolaryngology Head and Neck Surgery, People's Hospital of Wuhan University, Wuhan 430060, China
| | - J Ren
- Department of Allergy, People's Hospital of Wuhan University, Wuhan 430060, China
| | - Z Xu
- Deaprtment of Otorhinolaryngology Head and Neck Surgery, People's Hospital of Wuhan University, Wuhan 430060, China
| | - W W Lei
- Deaprtment of Otorhinolaryngology Head and Neck Surgery, People's Hospital of Wuhan University, Wuhan 430060, China
| | - K Yang
- Deaprtment of Otorhinolaryngology Head and Neck Surgery, People's Hospital of Wuhan University, Wuhan 430060, China
| | - Y G Kong
- Deaprtment of Otorhinolaryngology Head and Neck Surgery, People's Hospital of Wuhan University, Wuhan 430060, China
| | - J N Qu
- Deaprtment of Otorhinolaryngology Head and Neck Surgery, People's Hospital of Wuhan University, Wuhan 430060, China
| | - H Liao
- Deaprtment of Otorhinolaryngology Head and Neck Surgery, People's Hospital of Wuhan University, Wuhan 430060, China
| | - Y He
- Deaprtment of Otorhinolaryngology Head and Neck Surgery, People's Hospital of Wuhan University, Wuhan 430060, China
| | - H D Chen
- Deaprtment of Otorhinolaryngology Head and Neck Surgery, People's Hospital of Wuhan University, Wuhan 430060, China
| | - F Zeng
- Deaprtment of Otorhinolaryngology Head and Neck Surgery, People's Hospital of Wuhan University, Wuhan 430060, China
| | - Y Wang
- Deaprtment of Otorhinolaryngology Head and Neck Surgery, People's Hospital of Wuhan University, Wuhan 430060, China
| | - Q Q Hua
- Deaprtment of Otorhinolaryngology Head and Neck Surgery, People's Hospital of Wuhan University, Wuhan 430060, China
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16
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Wang HB, Zeng F, Wang YY, Li X, S. H., Li YM, Wang YF, Liu YH, Lu FP. Evaluation of the site-unspecified peptide identification method for proteolytic peptide mapping. RSC Adv 2020; 10:37182-37186. [PMID: 35521240 PMCID: PMC9057140 DOI: 10.1039/d0ra04226a] [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: 05/12/2020] [Accepted: 09/18/2020] [Indexed: 11/21/2022] Open
Abstract
The site-unspecific method could successfully identify most of the peptides from tryptic hydrolysates revealed by site-specific identification.
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Affiliation(s)
- H. B. Wang
- Key Laboratory of Industrial Fermentation Microbiology
- Ministry of Education
- Tianjin Key Laboratory of Industrial Microbiology
- National Engineering Laboratory for Industrial Enzymes
- The College of Biotechnology
| | - F. Zeng
- Key Laboratory of Industrial Fermentation Microbiology
- Ministry of Education
- Tianjin Key Laboratory of Industrial Microbiology
- National Engineering Laboratory for Industrial Enzymes
- The College of Biotechnology
| | - Y. Y. Wang
- Key Laboratory of Industrial Fermentation Microbiology
- Ministry of Education
- Tianjin Key Laboratory of Industrial Microbiology
- National Engineering Laboratory for Industrial Enzymes
- The College of Biotechnology
| | - X. Li
- Key Laboratory of Industrial Fermentation Microbiology
- Ministry of Education
- Tianjin Key Laboratory of Industrial Microbiology
- National Engineering Laboratory for Industrial Enzymes
- The College of Biotechnology
| | - S. H.
- Key Laboratory of Industrial Fermentation Microbiology
- Ministry of Education
- Tianjin Key Laboratory of Industrial Microbiology
- National Engineering Laboratory for Industrial Enzymes
- The College of Biotechnology
| | - Y. M. Li
- Key Laboratory of Industrial Fermentation Microbiology
- Ministry of Education
- Tianjin Key Laboratory of Industrial Microbiology
- National Engineering Laboratory for Industrial Enzymes
- The College of Biotechnology
| | - Y. F. Wang
- Key Laboratory of Industrial Fermentation Microbiology
- Ministry of Education
- Tianjin Key Laboratory of Industrial Microbiology
- National Engineering Laboratory for Industrial Enzymes
- The College of Biotechnology
| | - Y. H. Liu
- Key Laboratory of Industrial Fermentation Microbiology
- Ministry of Education
- Tianjin Key Laboratory of Industrial Microbiology
- National Engineering Laboratory for Industrial Enzymes
- The College of Biotechnology
| | - F. P. Lu
- Key Laboratory of Industrial Fermentation Microbiology
- Ministry of Education
- Tianjin Key Laboratory of Industrial Microbiology
- National Engineering Laboratory for Industrial Enzymes
- The College of Biotechnology
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17
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Li YC, Xu FM, Zhang GQ, Li SB, Wen YY, Zeng F. Down-regulation of microRNA-21 inhibits cell proliferation and invasion of high-invasion liver cancer stem cells. Eur Rev Med Pharmacol Sci 2019; 22:7832-7840. [PMID: 30536328 DOI: 10.26355/eurrev_201811_16408] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Cancer stem cells (CSCs) play critical roles in tumorigenesis, tumor recurrence and metastasis. This study aims to investigate the effects of small interfere microRNA-21 RNA (miR-21 RNAi) on cell proliferation, invasive ability of high-invasion liver cancer stem cells (H-ILCSCs), HCCLM3 and HL-7702 cells. MATERIALS AND METHODS pLVX-shRNA2 lentiviral vector system was established, packaged and transfected into H-ILCSCs, HCCLM3 and HL-7702 cells. Cell counting kit-8 (CCK-8) assay was performed to observe cell viabilities of cells. Transwell assay was conducted to evaluate the invasion potential of H-ILCSCs, HCCLM3 and HL-7702 cells. Quantitative PCR (qPCR) assay was used to examine the miR-21 levels in different cell lines. RESULTS pLVX-anti-miR21 lentiviral vector system was successfully established. miR-21 levels were down-regulated in anti-miR-21 gene steady expression cell lines compared to untreated cells (p<0.05). miR-21 levels were significantly lower in H-ILCSC2-LV-anti-miR-21 group compared to HCCLM3-anti-miR-21 and HL7702-anti-miR-21 (p<0.05). miR-21 inhibition significantly decreased cell proliferation and invasion compared to untreated cells (p<0.05). Cell proliferation and invasive ability of H-ILCSC2-LV-anti-miR-21 group were significantly higher compared to HCCLM3-anti-miR-21 and HL7702-anti-miR-21 (p<0.05). There were even not effects of miR-21 RNAi treatment on the cell proliferation and invasion of HL-7702 cells. CONCLUSIONS The down-regulation of miR-21 significantly inhibited the cell proliferation and invasion abilities of H-ILCSCs and HCCLM3 cells, and illustrated higher effects on H-ILCSCs.
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Affiliation(s)
- Y-C Li
- Department of Infectious Diseases, Zhoushan Hospital, Zhoushan, China.
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Abstract
Goals: The development of new treatment for drug abuse requires identification of targetable molecular mechanisms. The pathology of glutamate neurotransmission system in the brain reward circuit is related to the relapse of multiple drugs. Glutamate transporter regulates glutamate signaling by removing excess glutamate from the synapse. And the mechanisms between glutamate transporter and drug addiction are still unclear. Methods: A systematic review of the literature searched in Pubmed and reporting drug addiction in relation to glutamate transporter. Studies were screened by title, abstract, and full text. Results: This review is to highlight the effects of drug addiction on glutamate transporter and glutamate uptake, and targeting glutamate transporter as an addictive drug addiction treatment. We focus on the roles of glutamate transporter in different brain regions in drug addiction. More importantly, we suggest the functional roles of glutamate transporter may prove beneficial in the treatment of drug addiction. Conclusion: Overall, understanding how glutamate transporter impacts central nervous system may provide a new insight for treatment of drug addiction.
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Affiliation(s)
- Wenjun Wang
- Institute for Cancer Medicine and School of Basic Medical Sciences, Southwest Medical University, Luzhou, China
| | - Fancai Zeng
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Southwest Medical University, Luzhou, China
| | - Yingying Hu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Southwest Medical University, Luzhou, China
| | - Xiang Li
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Southwest Medical University, Luzhou, China
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Li B, Wang S, Wei H, Zeng F, Wang X. The use of patient-specific implants in genioplasty and its clinical accuracy: a preliminary study. Int J Oral Maxillofac Surg 2019; 49:461-465. [PMID: 31353173 DOI: 10.1016/j.ijom.2019.06.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Revised: 03/23/2019] [Accepted: 06/04/2019] [Indexed: 11/30/2022]
Abstract
The purpose of this study was to assess the accuracy and clinical validation of patient-specific implants (PSI) in genioplasty. Fifteen patients with chin deformities were enrolled. Virtual planning was performed with the computer-aided surgical simulation method. The three-dimensional-printed titanium cutting guide and patient-specific plate were designed to guide the osteotomy and allow repositioning and fixation of the chin. The outcome was evaluated by comparing the plan with actual outcomes. All operations were successfully completed with PSIs. There was no difficulty in using patient-specific plates. The largest root-mean-square difference of the chin position was 0.69 mm in mediolateral translation and 2.01° in the yaw orientation. The results of the study indicated that the PSI technique was an accurate method of transferring the virtual plan to the operation field with great efficiency in genioplasty. A significant advantage of the PSI technique is that the patient-specific plate could simultaneously complete the repositioning and fixation of the chin. Intraoperative measurements and reposition guides were no longer required. Operative procedures were greatly simplified.
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Affiliation(s)
- B Li
- Department of Oral and Craniomaxillofacial Surgery, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Shanghai, China
| | - S Wang
- Department of Oral and Craniomaxillofacial Surgery, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Shanghai, China
| | - H Wei
- Department of Oral and Craniomaxillofacial Surgery, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Shanghai, China
| | - F Zeng
- Department of Oral and Craniomaxillofacial Surgery, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - X Wang
- Department of Oral and Craniomaxillofacial Surgery, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Shanghai, China.
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20
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Geng X, Zhang Y, Yan J, Chu C, Gao F, Jiang Z, Zhang X, Chen Y, Wei X, Feng Y, Lu H, Wang C, Zeng F, Jia W. Mitochondrial DNA mutation m.3243A>G is associated with altered mitochondrial function in peripheral blood mononuclear cells, with heteroplasmy levels and with clinical phenotypes. Diabet Med 2019; 36:776-783. [PMID: 30536471 DOI: 10.1111/dme.13874] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/29/2018] [Indexed: 12/18/2022]
Abstract
AIMS To investigate the associations among heteroplasmy levels (i.e. the proportions of mutant and wild-type mitochondrial DNA in the same cell), mitochondrial function and clinical severity of the m.3243A>G mutation. METHODS A total of 17 participants carrying the m.3243A>G mutation and 17 sex- and age-matched healthy controls were included in this study. Heteroplasmy levels of the m.3243A>G mutation in leukocytes, saliva and urine sediment were determined by pyrosequencing. The clinical evaluation included endocrinological, audiological and ophthalmological examinations. Mitochondrial function was determined in peripheral blood mononuclear cells isolated from participants. RESULTS Heteroplasmy levels in urine sediment were higher than those in leukocytes and saliva. Reduced levels of adenosine triphosphate and mitochondrial membrane potential, and increased reactive oxygen species production were observed in mutant peripheral blood mononuclear cells (all P < 0.05). Linear regression analysis indicated that higher heteroplasmy levels in peripheral blood leukocytes were associated with increased levels of glycated albumin and HbA1c , and decreased total hip bone mineral density T-score after adjustment for age and sex (all P < 0.05). Furthermore, mitochondrial membrane potential was independently associated with bone mineral density T-score at the femoral neck (P < 0.05). CONCLUSIONS Heteroplasmy levels in peripheral blood leukocytes and mitochondrial membrane potential in peripheral blood mononuclear cells were closely associated with clinical manifestations and were valuable for evaluation of the clinical severity of the m.3243A>G mutation.
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Affiliation(s)
- X Geng
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Key Laboratory of Diabetes, Shanghai, China
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
- Metabolic Diseases Biobank, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Y Zhang
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Key Laboratory of Diabetes, Shanghai, China
- Metabolic Diseases Biobank, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
- Centre for Translational Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - J Yan
- Shanghai Institute of Medical Genetics, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
- Key Laboratory of Embryo Molecular Biology, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
- Ministry of Health of China and Shanghai Key Laboratory of Embryo and Reproduction Engineering, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - C Chu
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Key Laboratory of Diabetes, Shanghai, China
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
- Metabolic Diseases Biobank, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - F Gao
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Key Laboratory of Diabetes, Shanghai, China
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
- Metabolic Diseases Biobank, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Z Jiang
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Key Laboratory of Diabetes, Shanghai, China
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
- Metabolic Diseases Biobank, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - X Zhang
- Department of Neurology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Y Chen
- Department of Ophthalmology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - X Wei
- Department of Diagnostic Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Y Feng
- Department of Otolaryngology Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - H Lu
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Key Laboratory of Diabetes, Shanghai, China
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
- Metabolic Diseases Biobank, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - C Wang
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Key Laboratory of Diabetes, Shanghai, China
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
- Metabolic Diseases Biobank, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - F Zeng
- Shanghai Institute of Medical Genetics, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
- Key Laboratory of Embryo Molecular Biology, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
- Ministry of Health of China and Shanghai Key Laboratory of Embryo and Reproduction Engineering, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - W Jia
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Key Laboratory of Diabetes, Shanghai, China
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
- Metabolic Diseases Biobank, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
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Xiong H, Jiang M, Zhang W, Ye H, Chen Z, Zeng F, Chen S, Xing Q, Luo X. 994 Risk and association of HLA alleles with methimazole induced cutaneous adverse reactions in Chinese Han population. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.1070] [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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22
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Zheng S, Xia J, Zeng F, Huang L, Li F, Zhu H, Liao G, Lin Z, Zhou H. P021 The Impact of TP53 Mutation and Tumor Mutation Number on Outcomes in Patients with Stage I Non Small Cell Lung Cancer. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.10.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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23
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Li B, Sun H, Zeng F, Zhang T, Wang X. Accuracy of a CAD/CAM surgical template for mandibular distraction: a preliminary study. Br J Oral Maxillofac Surg 2018; 56:814-819. [DOI: 10.1016/j.bjoms.2018.09.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Accepted: 09/03/2018] [Indexed: 11/28/2022]
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24
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Xie H, Xiao S, Xue M, Zeng F. A Case Report of IVF-ET Induced Retroperitoneal Pregnancy with Lymphatic Migration. J Minim Invasive Gynecol 2018. [DOI: 10.1016/j.jmig.2018.09.710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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25
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Zhang Y, Zeng F, Li T, Liu L, Yang N. P2.01-120 First Study to Evaluate the Efficacy of SB Oral Solution to Prevent Neutropenia and FN Induced by Platinum-Based Chemotherapy in Lung Cancer. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Affiliation(s)
- W Shi
- a Department of Rheumatology , Guangzhou General Hospital of Guangzhou Military Command , Guangzhou , China.,b Graduate School of Guangzhou University of Chinese Medicine , Guangzhou , China
| | - J Kang
- c Department of Neurology , Guangzhou General Hospital of Guangzhou Military Command , Guangzhou , China
| | - B Lao
- d Department of Rheumatology , Guangdong Second Hospital of Traditional Chinese Medicine , Guangdong , China
| | - X Ye
- b Graduate School of Guangzhou University of Chinese Medicine , Guangzhou , China
| | - F Zeng
- b Graduate School of Guangzhou University of Chinese Medicine , Guangzhou , China
| | - J Wang
- e Department of Magnetic Resonance Imaging , Guangzhou General Hospital of Guangzhou Military Command , Guangzhou , China
| | - W Sun
- a Department of Rheumatology , Guangzhou General Hospital of Guangzhou Military Command , Guangzhou , China
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Liu P, Fan Y, Wei Y, Zeng F, Li R, Fei N, Qin W. Altered structural and functional connectivity of the insula in functional dyspepsia. Neurogastroenterol Motil 2018; 30:e13345. [PMID: 29687532 DOI: 10.1111/nmo.13345] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Accepted: 03/02/2018] [Indexed: 12/17/2022]
Abstract
BACKGROUND Functional dyspepsia (FD) is a common functional gastrointestinal disease. Neuroimaging studies have identified that insula is involved in the pathogenesis of FD. However, less is known about structural and functional connectivity of insula in FD. METHODS In this study, 67 FD patients and 46 healthy controls (HCs) underwent structural MRI, resting-state functional MRI, diffusion tensor imaging (DTI) scans, and clinical assessment. We used the 3 neuroimaging modalities to investigate structural and functional connectivity of insula between FD patients and HCs, and we examined relationships between the neuroimaging findings and clinical symptoms. KEY RESULTS Compared with HCs, (i) FD patients had decreased gray matter density in right insula according to voxel-based morphometry method, which region was targeted as region of interest for further analysis of structural and functional connectivity; (ii) FD patients had lower connection probability in right anterior insula with right thalamus, right internal capsule (IC), and right external capsule (EC); (iii) FD patients had decreased functional connectivity of the right anterior insula with right thalamus and right pregenual anterior cingulate cortex (pACC); and (iv) FD patients had negative correlation between disease duration and the functional connectivity of right anterior insula with thalamus. CONCLUSIONS AND INFERENCES The present findings reveal that alterations of structural and/or functional connectivity of right anterior insula with regions, including thalamus, IC, EC, and pACC, may be mainly implicated in abnormalities of visceral sensory processing and related affective responses in FD patients. Finally, this study could enhance understanding of the pathophysiology of FD.
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Affiliation(s)
- P Liu
- School of Life Science and Technology, Life Science Research Center, Xidian University, Xi'an, China.,School of Life Science and Technology, Engineering Research Center of Molecular and Neuro Imaging Ministry of Education, Xidian University, Xi'an, China
| | - Y Fan
- School of Life Science and Technology, Life Science Research Center, Xidian University, Xi'an, China.,School of Life Science and Technology, Engineering Research Center of Molecular and Neuro Imaging Ministry of Education, Xidian University, Xi'an, China
| | - Y Wei
- School of Life Science and Technology, Life Science Research Center, Xidian University, Xi'an, China.,School of Life Science and Technology, Engineering Research Center of Molecular and Neuro Imaging Ministry of Education, Xidian University, Xi'an, China
| | - F Zeng
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - R Li
- School of Life Science and Technology, Life Science Research Center, Xidian University, Xi'an, China.,School of Life Science and Technology, Engineering Research Center of Molecular and Neuro Imaging Ministry of Education, Xidian University, Xi'an, China
| | - N Fei
- School of Life Science and Technology, Life Science Research Center, Xidian University, Xi'an, China.,School of Life Science and Technology, Engineering Research Center of Molecular and Neuro Imaging Ministry of Education, Xidian University, Xi'an, China
| | - W Qin
- School of Life Science and Technology, Life Science Research Center, Xidian University, Xi'an, China.,School of Life Science and Technology, Engineering Research Center of Molecular and Neuro Imaging Ministry of Education, Xidian University, Xi'an, China
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28
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Zheng H, Xu J, Sun X, Zeng F, Li Y, Wu X, Li J, Zhao L, Chang XR, Liu M, Gong B, Li XZ, Liang FR. Electroacupuncture for patients with refractory functional dyspepsia: A randomized controlled trial. Neurogastroenterol Motil 2018; 30:e13316. [PMID: 29488274 DOI: 10.1111/nmo.13316] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 01/25/2018] [Indexed: 02/05/2023]
Abstract
BACKGROUND To test the efficacy of electroacupuncture for patients with refractory functional dyspepsia (FD). METHODS A 24-week, 2-arm, single-blind, randomized controlled trial was conducted at three hospitals in China. Patients with refractory FD were randomly assigned to receive 20 sessions of authentic or sham electroacupuncture in a treatment duration of 4 weeks. The primary outcome was complete absence of dyspeptic symptoms at 16 weeks after initiation of acupuncture (week 16). The secondary outcomes included adequate relief of dyspeptic symptoms, Leeds Dyspepsia Questionnaire (LDQ), Nepean Dyspepsia Index (NDI), and adverse events. Intention-to-treat analysis was performed. KEY RESULTS Two hundred patients were included, of which 196 (98%) completed follow-up data at week 24. At week 16, 17 (17%) patients in the authentic electroacupuncture group vs 6 (6%) patients in the sham group achieved the primary outcome (P = .014). Sixty-two (62%) patients had adequate relief in the authentic electroacupuncture group, as compared to 22 (22%) in the sham group (P = .001). The scores of LDQ and NDI were significantly improved in both groups at week 16, and patients in the authentic electroacupuncture group have more improvements (LDQ, mean difference, -2.2, 95% confidence interval, -2.3 to -2.1, P < .001; NDI, -7.3, -10.5 to -4.2, P < .001). Results were similar for all the outcomes assessed at week 24. No serious adverse events were reported in both groups. CONCLUSION Acupuncture efficaciously improves dyspeptic symptoms in patients with refractory FD.
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Affiliation(s)
- H Zheng
- Acupuncture & Tuina College/3rd Teaching Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - J Xu
- Acupuncture & Tuina College/3rd Teaching Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - X Sun
- Chinese Evidence-based Medicine Centre, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - F Zeng
- Acupuncture & Tuina College/3rd Teaching Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Y Li
- Acupuncture & Tuina College/3rd Teaching Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - X Wu
- Acupuncture & Tuina College/3rd Teaching Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - J Li
- Acupuncture & Tuina College/3rd Teaching Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - L Zhao
- Acupuncture & Tuina College/3rd Teaching Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - X-R Chang
- Acupuncture College, Hunan University of Traditional Chinese Medicine, Changsha, Hunan, China
| | - M Liu
- Acupuncture College, Hunan University of Traditional Chinese Medicine, Changsha, Hunan, China
| | - B Gong
- Traditional Chinese Medicinal College, Chongqing Medical University, Chongqing, China
| | - X-Z Li
- Traditional Chinese Medicinal College, Chongqing Medical University, Chongqing, China
| | - F-R Liang
- Acupuncture & Tuina College/3rd Teaching Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
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29
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Zeng F, Jiang MQ, Dai LH. Dilatancy induced ductile-brittle transition of shear band in metallic glasses. Proc Math Phys Eng Sci 2018; 474:20170836. [PMID: 29740259 DOI: 10.1098/rspa.2017.0836] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 03/12/2018] [Indexed: 11/12/2022] Open
Abstract
Dilatancy-generated structural disordering, an inherent feature of metallic glasses (MGs), has been widely accepted as the physical mechanism for the primary origin and structural evolution of shear banding, as well as the resultant shear failure. However, it remains a great challenge to determine, to what degree of dilatation, a shear banding will evolve into a runaway shear failure. In this work, using in situ acoustic emission monitoring, we probe the dilatancy evolution at the different stages of individual shear band in MGs that underwent severely plastic deformation by the controlled cutting technology. A scaling law is revealed that the dilatancy in a shear band is linearly related to its evolution degree. A transition from ductile-to-brittle shear bands is observed, where the formers dominate stable serrated flow, and the latter lead to a runaway instability (catastrophe failure) of serrated flow. To uncover the underlying mechanics, we develop a theoretical model of shear-band evolution dynamics taking into account an atomic-scale deformation process. Our theoretical results agree with the experimental observations, and demonstrate that the atomic-scale volume expansion arises from an intrinsic shear-band evolution dynamics. Importantly, the onset of the ductile-brittle transition of shear banding is controlled by a critical dilatation.
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Affiliation(s)
- F Zeng
- State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.,Software Center for High Performance Numerical Simulation, Chinese Academy of Engineering Physics, Beijing 100088, People's Republic of China
| | - M Q Jiang
- State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.,School of Engineering Science, University of Chinese Academy of Sciences, Beijing 101408, People's Republic of China
| | - L H Dai
- State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.,School of Engineering Science, University of Chinese Academy of Sciences, Beijing 101408, People's Republic of China
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30
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Zhang Y, Yang N, Zeng F, Wu F. 174P Aprepitant, palonosetron and dexamethasone proved effective to prevent chemotherapy-related nausea and vomiting in lung cancer. J Thorac Oncol 2018. [DOI: 10.1016/s1556-0864(18)30448-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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31
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Zhang S, Li DD, Zeng F, Zhu ZH, Song P, Zhao M, Duan JA. Efficient biosynthesis, analysis, solubility and anti-bacterial activities of succinylglycosylated naringenin. Nat Prod Res 2018; 33:1756-1760. [PMID: 29446976 DOI: 10.1080/14786419.2018.1431633] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [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: 10/18/2022]
Abstract
A novel water-soluble flavonoid with good anti-bacterial activities, naringenin-6″-succl-7-O-glucoside (7-SGN), was synthesised. It was biotransformed from naringenin by Bacillus amyloliquefaciens FJ18 in aqueous miscible organic media, and characterised by LC-MS and NMR analysis. The solubility of 7-SGN in water was approximately 102 times higher than that of naringenin. These results demonstrated that both the water solubility and the anti-bacterial activity of 7-SGN were significantly improved.
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Affiliation(s)
- S Zhang
- a Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources and Industrialization and Formulae Innovative Medicine, Jiangsu Key Laboratory for High Technology Research of TCM Formulae, State Key Laboratory Cultivation Base for TCM Quality and Efficacy , Nanjing University of Chinese Medicine , Nanjing , PR China
| | - D D Li
- a Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources and Industrialization and Formulae Innovative Medicine, Jiangsu Key Laboratory for High Technology Research of TCM Formulae, State Key Laboratory Cultivation Base for TCM Quality and Efficacy , Nanjing University of Chinese Medicine , Nanjing , PR China
| | - F Zeng
- a Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources and Industrialization and Formulae Innovative Medicine, Jiangsu Key Laboratory for High Technology Research of TCM Formulae, State Key Laboratory Cultivation Base for TCM Quality and Efficacy , Nanjing University of Chinese Medicine , Nanjing , PR China
| | - Z H Zhu
- a Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources and Industrialization and Formulae Innovative Medicine, Jiangsu Key Laboratory for High Technology Research of TCM Formulae, State Key Laboratory Cultivation Base for TCM Quality and Efficacy , Nanjing University of Chinese Medicine , Nanjing , PR China
| | - P Song
- b State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering , Nanjing University of Technology , Nanjing , PR China
| | - M Zhao
- a Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources and Industrialization and Formulae Innovative Medicine, Jiangsu Key Laboratory for High Technology Research of TCM Formulae, State Key Laboratory Cultivation Base for TCM Quality and Efficacy , Nanjing University of Chinese Medicine , Nanjing , PR China
| | - J A Duan
- a Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources and Industrialization and Formulae Innovative Medicine, Jiangsu Key Laboratory for High Technology Research of TCM Formulae, State Key Laboratory Cultivation Base for TCM Quality and Efficacy , Nanjing University of Chinese Medicine , Nanjing , PR China
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32
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Zhou Y, Zeng F, Che G. P-246A SUGGESTED SURGICAL TREATMENT FOR ATRIO-OESOPHAGEAL FISTULA. Interact Cardiovasc Thorac Surg 2017. [DOI: 10.1093/icvts/ivx280.246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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33
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Liu P, Wang G, Liu Y, Zeng F, Lin D, Yang X, Liang F, Calhoun VD, Qin W. Disrupted intrinsic connectivity of the periaqueductal gray in patients with functional dyspepsia: A resting-state fMRI study. Neurogastroenterol Motil 2017; 29. [PMID: 28338267 DOI: 10.1111/nmo.13060] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Accepted: 02/12/2017] [Indexed: 01/01/2023]
Abstract
BACKGROUND Functional dyspepsia (FD) is a common functional gastrointestinal disorder. Accumulating evidence suggests the crucial role of central nervous system in the development and maintenance of FD. In particular, periaqueductal gray (PAG) has demonstrated an important role in modulation of pain and emotion, which may be related to FD. However, the study of the PAG in FD is still limited. This study aimed to assess intrinsic connectivity of the PAG in FD patients. METHODS Resting-state functional magnetic imaging (fMRI) data were collected from 66 FD patients and 42 healthy controls (HCs). Functional connectivity analysis was performed to investigate the PAG connectivity pattern differences between the patients and HCs. We then examined the relationships between functional connectivity within the PAG networks and FD symptoms. KEY RESULTS Compared to HCs, patients had increased PAG connectivity with the insula, and decreased PAG connectivity with the orbitofrontal cortex (OFC), dorsolateral prefrontal cortex (dlPFC) and hippocampus/parahippocampus (HIPP/paraHIPP). There were positive correlations between disease duration and PAG connectivity with the putamen and supplementary motor area (SMA), and positive correlations between symptom severity and PAG connectivity with the insula. FD patients with high level of anxiety and depression had altered PAG connectivity with the anterior cingulate cortex (ACC), precuneus, dlPFC and caudate, compared to other patients. CONCLUSIONS & INFERENCES These findings indicate that abnormal intrinsic network of the PAG might be associated with abnormality of pain processing and disruption of emotion processing in FD patients. Our study further complements neuroimaging findings about FD.
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Affiliation(s)
- P Liu
- Life Science Research Center, School of Life Science and Technology, Xidian University, Xi'an, China.,Engineering Research Center of Molecular and NeuroImaging, Ministry of Education, Xi'an, China
| | - G Wang
- Life Science Research Center, School of Life Science and Technology, Xidian University, Xi'an, China.,Engineering Research Center of Molecular and NeuroImaging, Ministry of Education, Xi'an, China
| | - Y Liu
- Life Science Research Center, School of Life Science and Technology, Xidian University, Xi'an, China.,Engineering Research Center of Molecular and NeuroImaging, Ministry of Education, Xi'an, China
| | - F Zeng
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - D Lin
- The Mind Research Network, Albuquerque, NM, USA
| | - X Yang
- Life Science Research Center, School of Life Science and Technology, Xidian University, Xi'an, China.,Engineering Research Center of Molecular and NeuroImaging, Ministry of Education, Xi'an, China
| | - F Liang
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - V D Calhoun
- The Mind Research Network, Albuquerque, NM, USA.,Department of Electrical and Computer Engineering, University of New Mexico, Albuquerque, NM, USA
| | - W Qin
- Life Science Research Center, School of Life Science and Technology, Xidian University, Xi'an, China.,Engineering Research Center of Molecular and NeuroImaging, Ministry of Education, Xi'an, China
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34
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Liu P, Wang G, Liu Y, Zeng F, Lin D, Yang X, Liang F, Calhoun VD, Qin W. Response to Letter to the Editor: NMO 00164-2017. Neurogastroenterol Motil 2017; 29. [PMID: 28699315 DOI: 10.1111/nmo.13141] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Accepted: 05/26/2017] [Indexed: 02/08/2023]
Affiliation(s)
- P Liu
- School of Life Science and Technology, Xidian University, Xi'an, Shaanxi, China
| | - G Wang
- School of Life Science and Technology, Xidian University, Xi'an, Shaanxi, China
| | - Y Liu
- School of Life Science and Technology, Xidian University, Xi'an, Shaanxi, China
| | - F Zeng
- Acupunture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - D Lin
- The Mind Research Network, Albuquerque, NM, USA
| | - X Yang
- School of Life Science and Technology, Xidian University, Xi'an, Shaanxi, China
| | - F Liang
- Acupunture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - V D Calhoun
- The Mind Research Network, Albuquerque, NM, USA
| | - W Qin
- School of Life Science and Technology, Xidian University, Xi'an, Shaanxi, China
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35
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Grabosch S, Zeng F, Ma T, Zhang L, Guido E, Tseng G, Edwards R, Vlad A, Brozick J. Novel combination immunotherapy with MUC1 vaccination and immune checkpoint blockade in ovarian cancer. Gynecol Oncol 2017. [DOI: 10.1016/j.ygyno.2017.03.202] [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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36
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Chang CT, Zeng F, Li JX, Dong WS, Hu YD, Li GQ. Spatial summation of the short-term plasticity of a pair of organic heterogeneous junctions. RSC Adv 2017. [DOI: 10.1039/c6ra27406d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Short-term plasticity of a pair of organic heterogeneous junctions could be linearly summed from those of the two sources.
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Affiliation(s)
- C. T. Chang
- Key Laboratory of Advanced Materials (MOE)
- School of Materials Science and Engineering
- Tsinghua University
- Beijing
- China
| | - F. Zeng
- Key Laboratory of Advanced Materials (MOE)
- School of Materials Science and Engineering
- Tsinghua University
- Beijing
- China
| | - J. X. Li
- Key Laboratory of Advanced Materials (MOE)
- School of Materials Science and Engineering
- Tsinghua University
- Beijing
- China
| | - W. S. Dong
- Key Laboratory of Advanced Materials (MOE)
- School of Materials Science and Engineering
- Tsinghua University
- Beijing
- China
| | - Y. D. Hu
- Key Laboratory of Advanced Materials (MOE)
- School of Materials Science and Engineering
- Tsinghua University
- Beijing
- China
| | - G. Q. Li
- Center for Brain Inspired Computing Research (CBICR)
- Tsinghua University
- Beijing 100084
- People's Republic of China
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37
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Zhang T, Wang YR, Zeng F, Cao HY, Zhou HD, Wang YJ. LncRNA H19 is overexpressed in glioma tissue, is negatively associated with patient survival, and promotes tumor growth through its derivative miR-675. Eur Rev Med Pharmacol Sci 2016; 20:4891-4897. [PMID: 27981546] [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: 06/06/2023]
Abstract
OBJECTIVE Glioma is one of the most common and invasive tumors of the central nervous system. Long non-coding (lnc) RNAs are involved in many cancers, but their function and mechanism in glioma remain largely unknown. We wished to delineate the role of lncRNA H19 and its derivative miR-675 in this tumor. PATIENTS AND METHODS Using qPCR, we compared expression of lncRNA H19 in 35 specimens of glioma vs control tissue, and in two glioma cell lines U251 and U87 vs Normal Human Astrocyte (NHA) cells. Cell proliferation was evaluated after shRNA silencing of lncRNA H19 in glioma cell lines. The role of miR-675 was tested using antagomir and the mimic. RESULTS LncRNA H19 was overexpressed in glioma tissue and cell lines. In tissue, higher expression levels were observed in more advanced stages of the tumor. Furthermore, lncRNA H19 was negatively associated with patient survival time. In cell culture experiments, silencing of lncRNA H19 diminished proliferation of glioma cell lines. These effects of lncRNA H19 appeared to be intermediated by miR-675. The latter was overexpressed in glioma tissue and was negatively associated with patient survival. Supporting the involvement of miR-675, its antagomir decreased proliferation of glioma cell lines, whereas its mimic increased proliferation of NHA cells. CONCLUSIONS LncRNA H19 is overexpressed in glioma tissue, and is positively associated with the tumor grade and negatively associated with patient survival. In cell culture studies, lncRNA H19 promotes glioma cell proliferation. These tumor-promoting effects of lncRNA H19 appear to be mediated by miR-675.
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Affiliation(s)
- T Zhang
- The Department of Neurology, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing, China.
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Zhao HY, Zeng F, Cheng XM, Feng GL, Li TL, Fang XY, Luo Y, Luo TT. [The contrast analysis of endoscopic thyroidectomy by complete areola approach and conventional open thyroidectomy]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2016; 30:815-817. [PMID: 29798061 DOI: 10.13201/j.issn.1001-1781.2016.10.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Indexed: 11/12/2022]
Abstract
Objective:To compare the clinical efficacy between the endoscopic thyroidectomy by complete areola approach and the conventional open thyroidectomy.Method:One hundred and twenty-one cases of endoscopic thyroidectomy by complete areola approach or conventional open thyroidectomy patients were reviewed retrospectively, whose operation time, median blood lose, volume of postoperative drainage, incision scar formation rate and patient satisfaction were observed and compared.Result:There were obvious advantages in the median blood lose, volume of postoperative drainage, incision scar formation rate and patient satisfaction in the group of endoscopic thyroidectomy by complete areola approach comparing conventional open thyroidectomy. The difference was statistically significant(P <0.05).Conclusion:The method of endoscopic thyroidectomy by complete areola approach is obviously better , which has many advantages, such as Less bleeding, less volume of wound drainage and small skin incision scar. The patients were satisfied with the treatment.It is worthy of clinical application.
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Affiliation(s)
- H Y Zhao
- Department of Thyroid Breast Surgery,the Affiliated Hospital of Zunyi Medical College,Zunyi,563000,China
| | - F Zeng
- Department of Thyroid Breast Surgery,the Affiliated Hospital of Zunyi Medical College,Zunyi,563000,China
| | - X M Cheng
- Department of Thyroid Breast Surgery,the Affiliated Hospital of Zunyi Medical College,Zunyi,563000,China
| | - G L Feng
- Department of Thyroid Breast Surgery,the Affiliated Hospital of Zunyi Medical College,Zunyi,563000,China
| | - T L Li
- Department of Thyroid Breast Surgery,the Affiliated Hospital of Zunyi Medical College,Zunyi,563000,China
| | - X Y Fang
- Department of Thyroid Breast Surgery,the Affiliated Hospital of Zunyi Medical College,Zunyi,563000,China
| | - Y Luo
- Department of Thyroid Breast Surgery,the Affiliated Hospital of Zunyi Medical College,Zunyi,563000,China
| | - T T Luo
- Department of Thyroid Breast Surgery,the Affiliated Hospital of Zunyi Medical College,Zunyi,563000,China
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Zhou X, Liu Z, Cheng X, Zheng Y, Zeng F, He Y. Socs1 and Socs3 degrades Traf6 via polyubiquitination in LPS-induced acute necrotizing pancreatitis. Cell Death Dis 2015; 6:e2012. [PMID: 26633718 PMCID: PMC4720878 DOI: 10.1038/cddis.2015.342] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [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: 08/02/2015] [Revised: 10/20/2015] [Accepted: 10/22/2015] [Indexed: 01/01/2023]
Abstract
Mechanisms involved in inflammatory development during acute pancreatitis (AP) are largely vague, especially in the transformation of acute edematous pancreatitis (AEP) into acute necrotizing pancreatitis (ANP). This current study aims to investigate the functions of Traf6 in different AP models in vitro and in vivo, and to identify the possible regulatory mechanism in the progression of inflammation from mild to severe. Our data revealed that the level of Traf6 expression was significantly increased in the mild AP induced by caerulein, and the upregulation of Traf6 played a protective role in acinar cells against caerulein-induced apoptosis. In contrast, only Traf6 protein but not mRNA was downregulated in the severe ANP induced by combination treatment of caerulein and LPS. Mechanistic studies showed that LPS upregulated the levels of Socs1 and Socs3 expressions in acinar cells, Socs1 and Socs3 interacted Traf6 directly and degraded Traf6 protein via polyubiquitination, thereby counteracted the protective function of Traf6. In vivo study further showed that combination treatment of caerulein and LPS failed to induce an ANP model in the TLR4 knockout mice, and the level of Traf6 expression in the pancreatic tissues remained the same as that from the acute edematous pancreatitis (AEP) mouse. Taken together, our study reveals that Traf6 functioned as a protective factor in the progression of AP, and LPS-induced Socs1 and Socs3 exacerbate mild AP to severe AP, which provides evidence for developing a new therapeutic target to combat AP.
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Affiliation(s)
- X Zhou
- Department of Vascular and Thyroid, The Affiliated Hospital of Sichuan Medical University, Luzhou, Sichuan Province, P. R. China
| | - Z Liu
- Department of Lymphoma and Myeloma, Division of Cancer Medicine, Center for Cancer Immunology Research, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - X Cheng
- Department of Gastroenterology, The Affiliated Hospital of Sichuan Medical University, Luzhou, Sichuan Province, P. R. China
| | - Y Zheng
- Department of Vascular and Thyroid, The Affiliated Hospital of Sichuan Medical University, Luzhou, Sichuan Province, P. R. China
| | - F Zeng
- Department of Biochemistry and Molecular Biology, Sichuan Medical University, Luzhou, Sichuan Province, P. R. China
| | - Y He
- Department of Vascular and Thyroid, The Affiliated Hospital of Sichuan Medical University, Luzhou, Sichuan Province, P. R. China
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Liu C, Mao J, Zeng F. Chrysopa septempunctata (Neuroptera: Chrysopidae) Vitellogenin Functions Through Effects on Egg Production and Hatching. J Econ Entomol 2015; 108:2779-2788. [PMID: 26470375 DOI: 10.1093/jee/tov229] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Accepted: 07/10/2015] [Indexed: 06/05/2023]
Abstract
Vitellogenin (Vg) is a precursor of major egg storage protein, vitellin (Vt), and plays primary roles in reproduction of oviparous vertebrates and invertebrates. Chrysopa septempunctata Wesmael is an important and common predator of various insect pests. Here, we first cloned C. septempunctata Vg gene, CsVg. The complete CsVg cDNA was 5664 bp, which encodes an 1810-residues protein with a predicted molecular mass of 206.23 kDa. Expression profile revealed that CsVg mRNA first appeared on day 4 after emergence, maximally accumulated on day 10, and then declined gradually. RNAi mediated by injection of dsRNA depleted CsVg transcripts, significantly reduced egg-laying amount, and decreased egg hatching rate, suggesting that CsVg functions through effects on egg production and hatching in C. septempunctata.
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Affiliation(s)
- C Liu
- Key Laboratory for Biology of Plant Diseases and Insect Pests, Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China. Food Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan 430064, China. Both authors contributed equally to this work
| | - J Mao
- Key Laboratory for Biology of Plant Diseases and Insect Pests, Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China. Both authors contributed equally to this work
| | - F Zeng
- Key Laboratory for Biology of Plant Diseases and Insect Pests, Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
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Dong WS, Zeng F, Lu SH, Liu A, Li XJ, Pan F. Frequency-dependent learning achieved using semiconducting polymer/electrolyte composite cells. Nanoscale 2015; 7:16880-16889. [PMID: 26412715 DOI: 10.1039/c5nr02891d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Frequency-dependent learning has been achieved using semiconducting polymer/electrolyte composite cells. The cells composed of polymer/electrolyte double layers realized the conventional spike-rate-dependent plasticity (SRDP) learning model. These cells responded to depression upon low-frequency stimulation and to potentiation upon high-frequency stimulation and presented long-term memory. The transition threshold θm from depression to potentiation varied depending on the previous stimulations. A nanostructure resembling a bio-synapse in its transport passages was demonstrated and a random channel model was proposed to describe the ionic kinetics at the polymer/electrolyte interface during and after stimulations with various frequencies, accounting for the observed SRDP.
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Affiliation(s)
- W S Dong
- Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China.
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Andrews PW, Baker D, Benvinisty N, Miranda B, Bruce K, Brüstle O, Choi M, Choi YM, Crook JM, de Sousa PA, Dvorak P, Freund C, Firpo M, Furue MK, Gokhale P, Ha HY, Han E, Haupt S, Healy L, Hei DJ, Hovatta O, Hunt C, Hwang SM, Inamdar MS, Isasi RM, Jaconi M, Jekerle V, Kamthorn P, Kibbey MC, Knezevic I, Knowles BB, Koo SK, Laabi Y, Leopoldo L, Liu P, Lomax GP, Loring JF, Ludwig TE, Montgomery K, Mummery C, Nagy A, Nakamura Y, Nakatsuji N, Oh S, Oh SK, Otonkoski T, Pera M, Peschanski M, Pranke P, Rajala KM, Rao M, Ruttachuk R, Reubinoff B, Ricco L, Rooke H, Sipp D, Stacey GN, Suemori H, Takahashi TA, Takada K, Talib S, Tannenbaum S, Yuan BZ, Zeng F, Zhou Q. Points to consider in the development of seed stocks of pluripotent stem cells for clinical applications: International Stem Cell Banking Initiative (ISCBI). Regen Med 2015; 10:1-44. [PMID: 25675265 DOI: 10.2217/rme.14.93] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Affiliation(s)
- P W Andrews
- Department of Biomedical Science, The University of Sheffield, Sheffield, UK
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Liao XP, Zhu HW, Zeng F, Tang ZH. The association and interaction analysis of hypertension and uric acid on cardiovascular autonomic neuropathy. J Endocrinol Invest 2015; 38:1075-82. [PMID: 25903694 DOI: 10.1007/s40618-015-0291-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [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: 03/10/2015] [Accepted: 04/08/2015] [Indexed: 10/23/2022]
Abstract
BACKGROUND The purpose of this study was to evaluate associations among hypertension (HTN) and uric acid (UA) with cardiovascular autonomic neuropathy (CAN), and to estimate the extent to which synergistic effects of HTN and UA affect the outcome in a Chinese population. METHOD We conducted a large-scale, population-based study to analyze the association and interaction of the two factors for CAN in a sample of 2092 Chinese people. Univariate and multiple linear regression (MLR) analysis were employed to detect these relationships. Interaction on an additive scale can be calculated by using the relative excess risk due to interaction (RERI), the proportion attributable to interaction (AP), and the synergy index (S). RESULT After adjusting for confounding factors, MLR showed that HTN was independently associated with CAN (P < 0.001). A significant interaction effect of UA and HTN on CAN was detected (P = 0.035; RETI = 1.483, 95 % CI 0.415-2.551; AP = 0.360, 95 % CI -0.043 to 0.76 and S = 1.908, 95 % CI 0.152-3.66). CONCLUSION Our findings suggest that HTN is independently and significantly associated with CAN and offer evidence to support the hypothesis that HTN and UA have interaction effects to influence the progression of CAN.
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Affiliation(s)
- X-P Liao
- Department of Internal Medicine, Shanghai Anting Hospital, Jiading, Shanghai, China.
| | - H-W Zhu
- Department of Internal Medicine, Shanghai Anting Hospital, Jiading, Shanghai, China.
| | - F Zeng
- Department of Endocrinology and Metabolism, Shanghai Tongji Hospital, Tongji University School of Medicine, Room 517, Building 2nd, 389 Xincun Road, Shanghai, 200063, China.
| | - Z-H Tang
- Department of Endocrinology and Metabolism, Shanghai Tongji Hospital, Tongji University School of Medicine, Room 517, Building 2nd, 389 Xincun Road, Shanghai, 200063, China.
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Zhu XY, Ye MY, Zhang AM, Wang WD, Zeng F, Li JL, Fang F. Influence of one-year neurologic outcome of treatment on newborns with moderate and severe hypoxic-ischemic encephalopathy by rhuEP0 combined with ganglioside (GM1). Eur Rev Med Pharmacol Sci 2015; 19:3955-3960. [PMID: 26531285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To observe the one-year neurologic prognostic outcome of newborns with moderate and severe hypoxic-ischemic encephalopathy (HIE) who received recombinant human erythropoietin (rhuEPO) combined with exogenous monosialotetrahexosylganglioside (GM1) treatment to provide new guidelines for clinical treatment. PATIENTS AND METHODS Seventy-six newborns with moderate and severe HIE were selected from February 2011 to February 2014 in our hospital. This study received the informed consent of our hospital's Ethics Committee and the newborns' guardians. The newborns were divided to an observation group (n = 34 cases) and a control group (n = 42 cases). All newborns underwent hypothermia and conventional treatment for their conditions. The control group received GMl treatment and observation group received rhuEPO combined with GMl treatment. The curative differences and neural behavior from these two groups were compared. RESULTS The excellent, efficient proportion and total effective rate of the newborns from the observation group were higher than the control group. The death rate, cerebral palsy and the invalid ratio of the newborns from the observation group were lower than that of the control group. Awareness, muscle tension, primitive reflex and increased intracranial pressure recovery time of the newborns in the observation group were less than those of the control group. The Neonatal Behavior Neurological Assessment (NBNA) score of both groups after the treatment of 7, 14 and 28 days were significantly higher and increased with time (p < 0.05). The MDI, PDI and DQ score of newborns from the two groups all increased after treatment of 3, 6 and 12 months than those of before, which increased with time (p < 0.05). CONCLUSIONS The rhuEPO + GMl treatment in newborns with HIE improves short-term clinical effects and long-term neurological symptoms.
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Affiliation(s)
- X-Y Zhu
- Department of Pediatrics, Xiangyang Hospital, Hubei University of Medicine, Xiangyang, Hubei, China.
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Nan J, Liu J, Mu J, Zhang Y, Zhang M, Tian J, Liang F, Zeng F. Anatomically related gray and white matter alterations in the brains of functional dyspepsia patients. Neurogastroenterol Motil 2015; 27:856-64. [PMID: 25825020 DOI: 10.1111/nmo.12560] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Accepted: 03/03/2015] [Indexed: 12/24/2022]
Abstract
BACKGROUND Previous studies summarized altered brain functional patterns in functional dyspepsia (FD) patients, but how the brain structural patterns are related to FD remains largely unclear. The objective of this study was to determine the brain structural characteristics in FD patients. METHODS Optimized voxel-based morphometry and tract-based spatial statistics were employed to investigate the changes in gray matter (GM) and white matter (WM) respectively in 34 FD patients with postprandial distress syndrome and 33 healthy controls based on T1-weighted and diffusion-weighted imaging. The Pearson's correlation evaluated the link among GM alterations, WM abnormalities, and clinical variables in FD patients. The optimal brain structural parameters for identifying FD were explored using the receiver operating characteristic curve. KEY RESULTS Compared to controls, FD patients exhibited a decrease in GM density (GMD) in the right posterior insula/temporal superior cortex (marked as pINS), right inferior frontal cortex (IFC), and left middle cingulate cortex, and an increase in fractional anisotropy (FA) in the posterior limb of the internal capsule, posterior thalamic radiation, and external capsule (EC). Interestingly, the GMD in the pINS was significantly associated with GMD in the IFC and FA in the EC. Moreover, the EC adjacent to the pINS provided the best performance for distinguishing FD patients from controls. CONCLUSIONS & INFERENCES Our results showed pINS-related structural abnormalities in FD patients, indicating that GM and WM parameters were not affected independently. These findings would lay the foundation for probing an efficient target in the brain for treating FD.
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Affiliation(s)
- J Nan
- School of Life Science and Technology, Xidian University, Xi'an, China
| | - J Liu
- School of Life Science and Technology, Xidian University, Xi'an, China
| | - J Mu
- School of Life Science and Technology, Xidian University, Xi'an, China
| | - Y Zhang
- School of Life Science and Technology, Xidian University, Xi'an, China
| | - M Zhang
- Department of Medical Imaging, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - J Tian
- School of Life Science and Technology, Xidian University, Xi'an, China
| | - F Liang
- The 3rd Teaching Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - F Zeng
- The 3rd Teaching Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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Zhang L, Tang ZH, Zeng F, Li Z, Zhou L, Li Y. Clinical risk model assessment for cardiovascular autonomic dysfunction in the general Chinese population. J Endocrinol Invest 2015; 38:615-22. [PMID: 25555369 DOI: 10.1007/s40618-014-0229-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [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: 10/04/2014] [Accepted: 12/14/2014] [Indexed: 01/16/2023]
Abstract
BACKGROUND The aim of this study was to evaluate the prevalence of cardiovascular autonomic (CA) dysfunction in the general Chinese population (instead of focusing on only patients with diabetes) and to develop a clinical risk model for the disease. METHODS AND MATERIALS We evaluated CA dysfunction prevalence in a dataset based on a population sample consisting of 2,092 individuals. Clinical risk models were derived from exploratory sets using multiple logistic regression analysis. The performance of the clinical risk models was tested in the validation sets. RESULTS CA dysfunction prevalence was 18.50% in the general Chinese population, while the prevalence was 24.14% in individuals aged ≥60 years. Its prevalence was 31.17, 24.69, and 21.26% in patients with diabetes, and hypertensive, and metabolic syndrome populations, respectively. Finally, we developed clinical risk models involving seven risk factors. The mean area under the receiver-operating curve was 0.758 (95% CI 0.724-0.793) for these models. The mean sensitivity and specificity of the clinical risk models was 75.0 and 66.2%, respectively. CONCLUSION CA dysfunction prevalence was high in the general Chinese population, and its prevalence was more frequent in individuals with diabetes, and hypertensive, and metabolic syndrome. Clinical risk models with a high value for predicting CA dysfunction were developed. CA dysfunction has become a major public health problem in China that requires strategies aimed at the prevention and treatment of the disease.
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Affiliation(s)
- L Zhang
- Department of Endocrinology and Metabolism, Huashan Hospital of Fudan University, Building 0#, NO. 12 Wulumuqi Mid Road, Shanghai, 200040, China.
| | - Z-H Tang
- Department of Endocrinology and Metabolism, Huashan Hospital of Fudan University, Building 0#, NO. 12 Wulumuqi Mid Road, Shanghai, 200040, China.
| | - F Zeng
- Department of Endocrinology and Metabolism, Huashan Hospital of Fudan University, Building 0#, NO. 12 Wulumuqi Mid Road, Shanghai, 200040, China.
| | - Z Li
- Department of Endocrinology and Metabolism, Huashan Hospital of Fudan University, Building 0#, NO. 12 Wulumuqi Mid Road, Shanghai, 200040, China.
| | - L Zhou
- Department of Endocrinology and Metabolism, Huashan Hospital of Fudan University, Building 0#, NO. 12 Wulumuqi Mid Road, Shanghai, 200040, China.
| | - Y Li
- Department of Endocrinology and Metabolism, Huashan Hospital of Fudan University, Building 0#, NO. 12 Wulumuqi Mid Road, Shanghai, 200040, China.
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Cai L, Zeng F, Liu B, Wei L, Chen Z, Jiang J. A single-centre, open-label, prospective study of an initially short-term intensified dosing regimen of enteric-coated mycophenolate sodium with reduced cyclosporine A exposure in Chinese live-donor kidney transplant recipients. Int J Clin Pract 2015:23-30. [PMID: 24673716 DOI: 10.1111/ijcp.12403] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
AIMS The nephrotoxicity of cyclosporine A (CsA) accounts for dysfunction of kidney allografts in the clinic. Short-term intensified dosing using enteric-coated mycophenolate sodium (EC-MPS) may facilitate CsA sparing after kidney transplantation without compromising safety. METHODS In a 12-month, single-centre open-label prospective trial, 180 de novo live-donor kidney transplant recipients at low-immunological risk were randomised to a low-dose cyclosporine group which received a low dose of cyclosporine, short-term intensified EC-MPS dosing (2160 mg/day to week 6, 1440 mg/day thereafter) and corticosteroids or a standard-dose cyclosporine group which received a standard dose of cyclosporine, standard EC-MPS dosing (1440 mg/day) and corticosteroids. The primary end-point [treatment failure including biopsy-proven acute rejection (BPAR), graft loss, death], secondary end-point and adverse events were monitored. RESULTS The primary end-point (treatment failure) occurred in 13.3% (12/90) of the low-dose cyclosporine group and 16.7% (15/90) of the standard-dose cyclosporine group (p = 0.53) (difference -3.4%, 95% confidence interval -11.7% to 7.5%, based on a noninferiority margin of 20%). BPAR occurred in 11.1% and 13.3% of patients in the low-dose cyclosporine group and standard-dose cyclosporine group, respectively (p = 0.65). The estimated glomerular filtration rate, as calculated by the Cockcroft-Gault formula, was similar at 12 months after transplantation (low-dose cyclosporine group 63 ± 19 ml/min/1.73 m(2) and standard-dose cyclosporine group 59 ± 15 ml/min/1.73 m(2) ; p = 0.43). The levels of serum creatinine and occurrence of adverse events between the two groups were not statistically different. CONCLUSIONS A regimen of early intensified EC-MPS dosing permits low-dose cyclosporine in live-donor kidney transplant patients at low-immunological risk without compromising efficacy at 12 months' follow-up.
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Affiliation(s)
- L Cai
- The Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Key Laboratory of Ministry of Health and Key Laboratory of Ministry of Education, Wuhan, China; Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Zeng F, Lan L, Tang Y, Liu M, Liu X, Song W, Li Y, Qin W, Sun J, Yu S, Gao X, Tian J, Liang F. Cerebral responses to puncturing at different acupoints for treating meal-related functional dyspepsia. Neurogastroenterol Motil 2015; 27:559-68. [PMID: 25693969 DOI: 10.1111/nmo.12532] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2014] [Accepted: 01/26/2015] [Indexed: 12/13/2022]
Abstract
BACKGROUND To investigate the similarities and differences in cerebral responses to puncturing at different acupoints for treating meal-related functional dyspepsia (FD). METHODS Twenty right-handed FD patients were enrolled and randomized divided into two groups. Each patient received 20 sessions' electro-acupuncture treatment. The acupoints used in Group A were four acupoints on the Stomach Meridian, and the acupoints used in Group B were four acupoints on the Gallbladder Meridian. PET-CT scans were performed before and after acupuncture treatment to record the changes of cerebral glycometabolism. KEY RESULTS After treatment, the dyspepsia symptoms and the quality of life (QOL) of the patients in each group were significantly improved (p < 0.05) and there was insignificant difference in efficacy between the two groups (p > 0.05). In Group A, deactivation in brainstem, bilateral anterior cingulate cortex (ACC) and cerebellum, left superior medial frontal gyrus, orbital frontal cortex (OFC), and thalamus, etc., and activation in bilateral middle cingulate cortex (MCC), precuneus and lingual gyrus, etc. were observed. In Group B, deactivation in brainstem, bilateral thalamus, putamen, ACC, postterior cingulate cortex, hippocampus and cerebellum, etc., and activation in bilateral MCC, precuneus, left OFC, etc. were observed (p < 0.05, Family-wise error corrected). CONCLUSIONS & INFERENCES Different acupoints have similar clinical efficacy but relatively different cerebral responses. The influence on the sensory transduction regions (brainstem and thalamus) and visceral modulation regions might be the common mechanism of different acupoints treating for FD, and the modulation on some emotion/cognition-related areas (e.g., prefrontal cortex) is the potential difference between the different acupoints.
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Affiliation(s)
- F Zeng
- Acupunture and Tuina School/The 3rd Teaching Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
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Moussa M, Shu J, Zhang X, Zeng F. Maternal control of oocyte quality in cattle “a review”. Anim Reprod Sci 2015; 155:11-27. [DOI: 10.1016/j.anireprosci.2015.01.011] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Revised: 11/20/2014] [Accepted: 01/15/2015] [Indexed: 02/09/2023]
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Zeng F, Arnao E, Zhang G, Olaya G, Wullschleger J, Sierotzki H, Ming R, Bluhm BH, Bond JP, Fakhoury AM, Bradley CA. Characterization of Quinone Outside Inhibitor Fungicide Resistance in Cercospora sojina and Development of Diagnostic Tools for its Identification. Plant Dis 2015; 99:544-550. [PMID: 30699555 DOI: 10.1094/pdis-05-14-0460-re] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Frogeye leaf spot of soybean, caused by the fungus Cercospora sojina, reduces soybean yields in most of the top-producing countries around the world. Control strategies for frogeye leaf spot can rely heavily on quinone outside inhibitor (QoI) fungicides. In 2010, QoI fungicide-resistant C. sojina isolates were identified in Tennessee for the first time. As the target of QoI fungicides, the cytochrome b gene present in fungal mitochondria has played a key role in the development of resistance to this fungicide class. The cytochrome b genes from three QoI-sensitive and three QoI-resistant C. sojina isolates were cloned and sequenced. The complete coding sequence of the cytochrome b gene was identified and found to encode 396 amino acids. The QoI-resistant C. sojina isolates contained the G143A mutation in the cytochrome b gene, a guanidine to cytosine transversion at the second position in codon 143 that causes an amino acid substitution of alanine for glycine. C. sojina-specific polymerase chain reaction primer sets and TaqMan probes were developed to efficiently discriminate QoI-resistant and -sensitive isolates. The molecular basis of QoI fungicide resistance in field isolates of C. sojina was identified as the G143A mutation, and specific molecular approaches were developed to discriminate and to track QoI-resistant and -sensitive isolates of C. sojina.
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Affiliation(s)
- F Zeng
- Department of Plant Biology, University of Illinois, Urbana 61801, and State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai'an, Shandong, China
| | - E Arnao
- Department of Plant, Soil, and Agricultural Systems, Southern Illinois University, Carbondale 62901
| | - G Zhang
- Department of Crop Sciences, University of Illinois
| | - G Olaya
- Syngenta Crop Protection, Vero Beach, FL 32967
| | | | - H Sierotzki
- Syngenta Crop Protection, Stein, Switzerland
| | - R Ming
- Department of Plant Biology, University of Illinois
| | - B H Bluhm
- Department of Plant Pathology, University of Arkansas, Fayetteville 72701
| | - J P Bond
- Department of Plant, Soil, and Agricultural Systems, Southern Illinois University
| | - A M Fakhoury
- Department of Plant, Soil, and Agricultural Systems, Southern Illinois University
| | - C A Bradley
- Department of Crop Sciences, University of Illinois
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