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Fan WY, Chen YM, Wang YF, Wang YQ, Hu JQ, Tang WX, Feng Y, Cheng Q, Xue L. L-Type Calcium Channel Modulates Low-Intensity Pulsed Ultrasound-Induced Excitation in Cultured Hippocampal Neurons. Neurosci Bull 2024:10.1007/s12264-024-01186-2. [PMID: 38498092 DOI: 10.1007/s12264-024-01186-2] [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: 07/06/2023] [Accepted: 12/06/2023] [Indexed: 03/19/2024] Open
Abstract
As a noninvasive technique, ultrasound stimulation is known to modulate neuronal activity both in vitro and in vivo. The latest explanation of this phenomenon is that the acoustic wave can activate the ion channels and further impact the electrophysiological properties of targeted neurons. However, the underlying mechanism of low-intensity pulsed ultrasound (LIPUS)-induced neuro-modulation effects is still unclear. Here, we characterize the excitatory effects of LIPUS on spontaneous activity and the intracellular Ca2+ homeostasis in cultured hippocampal neurons. By whole-cell patch clamp recording, we found that 15 min of 1-MHz LIPUS boosts the frequency of both spontaneous action potentials and spontaneous excitatory synaptic currents (sEPSCs) and also increases the amplitude of sEPSCs in hippocampal neurons. This phenomenon lasts for > 10 min after LIPUS exposure. Together with Ca2+ imaging, we clarified that LIPUS increases the [Ca2+]cyto level by facilitating L-type Ca2+ channels (LTCCs). In addition, due to the [Ca2+]cyto elevation by LIPUS exposure, the Ca2+-dependent CaMKII-CREB pathway can be activated within 30 min to further regulate the gene transcription and protein expression. Our work suggests that LIPUS regulates neuronal activity in a Ca2+-dependent manner via LTCCs. This may also explain the multi-activation effects of LIPUS beyond neurons. LIPUS stimulation potentiates spontaneous neuronal activity by increasing Ca2+ influx.
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Affiliation(s)
- Wen-Yong Fan
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Fudan University, Shanghai, 200433, China
- Department of Physiology and Neurobiology, School of Life Sciences, Fudan University, Shanghai, 200438, China
| | - Yi-Ming Chen
- Institute of Acoustics, School of Physics Science and Engineering, Tongji University, Shanghai, 200092, China
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of Ministry of Education, Tongji University, Shanghai, 200070, China
| | - Yi-Fan Wang
- Institute of Acoustics, School of Physics Science and Engineering, Tongji University, Shanghai, 200092, China
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of Ministry of Education, Tongji University, Shanghai, 200070, China
| | - Yu-Qi Wang
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Fudan University, Shanghai, 200433, China
- Department of Physiology and Neurobiology, School of Life Sciences, Fudan University, Shanghai, 200438, China
| | - Jia-Qi Hu
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Fudan University, Shanghai, 200433, China
- Department of Physiology and Neurobiology, School of Life Sciences, Fudan University, Shanghai, 200438, China
- Center for Rehabilitation Medicine, Department of Pain Management, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, 310014, China
| | - Wen-Xu Tang
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Fudan University, Shanghai, 200433, China
- Department of Physiology and Neurobiology, School of Life Sciences, Fudan University, Shanghai, 200438, China
| | - Yi Feng
- Department of Critical Care Medicine, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200080, China
| | - Qian Cheng
- Institute of Acoustics, School of Physics Science and Engineering, Tongji University, Shanghai, 200092, China.
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of Ministry of Education, Tongji University, Shanghai, 200070, China.
- Shanghai Research Institute for Intelligent Autonomous Systems, Tongji University, Shanghai, 201210, China.
| | - Lei Xue
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Fudan University, Shanghai, 200433, China.
- Department of Physiology and Neurobiology, School of Life Sciences, Fudan University, Shanghai, 200438, China.
- Research Institute of Intelligent Complex Systems, Fudan University, Shanghai, 200433, China.
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Chen JX, Hu JQ, Kapral R. Chemical Logic Gates on Active Colloids. Adv Sci (Weinh) 2024:e2305695. [PMID: 38450886 DOI: 10.1002/advs.202305695] [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] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 12/28/2023] [Indexed: 03/08/2024]
Abstract
Recent studies have shown that active colloidal motors using enzymatic reactions for propulsion hold special promise for applications in fields ranging from biology to material science. It will be desirable to have active colloids with capability of computation so that they can act autonomously to sense their surroundings and alter their own dynamics. It is shown how small chemical networks that make use of enzymatic chemical reactions on the colloid surface can be used to construct motor-based chemical logic gates. The basic features of coupled enzymatic reactions that are responsible for propulsion and underlie the construction and function of chemical gates are described using continuum theory and molecular simulation. Examples are given that show how colloids with specific chemical logic gates, can perform simple sensing tasks. Due to the diverse functions of different enzyme gates, operating alone or in circuits, the work presented here supports the suggestion that synthetic motors using such gates could be designed to operate in an autonomous way in order to complete complicated tasks.
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Affiliation(s)
- Jiang-Xing Chen
- Department of Physics, Hangzhou Normal University, Hangzhou, 311121, China
| | - Jia-Qi Hu
- Department of Physics, Hangzhou Normal University, Hangzhou, 311121, China
| | - Raymond Kapral
- Chemical Physics Theory Group, Department of Chemistry, University of Toronto, Toronto, Ontario, M5S 3H6, Canada
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Wang CY, Hu JQ, Wang DG, Li YZ, Wu C. Recent advances in discovery and biosynthesis of natural products from myxobacteria: an overview from 2017 to 2023. Nat Prod Rep 2024. [PMID: 38390645 DOI: 10.1039/d3np00062a] [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: 02/24/2024]
Abstract
Covering: 2017.01 to 2023.11Natural products biosynthesized by myxobacteria are appealing due to their sophisticated chemical skeletons, remarkable biological activities, and intriguing biosynthetic enzymology. This review aims to systematically summarize the advances in the discovery methods, new structures, and bioactivities of myxobacterial NPs reported in the period of 2017-2023. In addition, the peculiar biosynthetic pathways of several structural families are also highlighted.
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Affiliation(s)
- Chao-Yi Wang
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, 266237 Qingdao, P.R. China.
| | - Jia-Qi Hu
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, 266237 Qingdao, P.R. China.
| | - De-Gao Wang
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, 266237 Qingdao, P.R. China.
| | - Yue-Zhong Li
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, 266237 Qingdao, P.R. China.
| | - Changsheng Wu
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, 266237 Qingdao, P.R. China.
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Hu JQ, Wang J, Shen ZH, Lai YX, You JY, Yan Q, Ren KF, Ji J. Mechanical Enhancement of the Gelatin/Poly(zinc acrylate) Hydrogel Stent in Bile. ACS Appl Bio Mater 2023; 6:5621-5629. [PMID: 37983123 DOI: 10.1021/acsabm.3c00786] [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] [Indexed: 11/22/2023]
Abstract
Hydrogels with the features of softness, biocompatibility, and modifiability have emerged as excellent materials in the biomedical field. However, the poor mechanical properties of the hydrogels limit their further practical applications. Double-network and metal ion coordination, such as Cu2+ and Zn2+, have achieved a significant reinforcement of the mechanical strength of the hydrogels. Herein, we report a Zn2+-enhanced polyelectrolyte double-network hydrogel stent with a mechanical enhancement phenomenon in bile. The gelatin/poly(zinc acrylate) (PZA) stent was constructed by dip-coating and UV irradiation. Although the mechanical strength of the as-prepared stent was quite weak, it was discovered to be mechanically enhanced by the natural bile. After exploring the effect of different components on the stents according to the components of bile, we found that Ca2+ in bile made a contribution to the mechanical enhancement of the stent. It is envisioned that this bile-enhanced gelatin/PZA stent provides a train of thought for the potential application of hydrogels in the biliary environment.
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Affiliation(s)
- Jia-Qi Hu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, International Research Center for X Polymers, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310012, China
| | - Jing Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, International Research Center for X Polymers, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310012, China
| | - Zhen-Hua Shen
- Department of Hepatobiliary and Pancreatic Surgery, Huzhou Central Hospital, the Affiliated Huzhou Hospital, Zhejiang University School of Medicine, Huzhou 313002, China
| | - Yu-Xian Lai
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, International Research Center for X Polymers, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310012, China
| | - Jia-Yin You
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, International Research Center for X Polymers, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310012, China
| | - Qiang Yan
- Department of Hepatobiliary and Pancreatic Surgery, Huzhou Central Hospital, the Affiliated Huzhou Hospital, Zhejiang University School of Medicine, Huzhou 313002, China
| | - Ke-Feng Ren
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, International Research Center for X Polymers, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310012, China
- Huzhou Institute, Zhejiang University, Xisaishan Road 819, Huzhou 313002, China
| | - Jian Ji
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, International Research Center for X Polymers, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310012, China
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Hu JQ, Zhang YG, Feng W, Shi H. A case study on the pitfalls in prenatal ultrasonic detection of butterfly vertebra. Heliyon 2023; 9:e21754. [PMID: 38028011 PMCID: PMC10660013 DOI: 10.1016/j.heliyon.2023.e21754] [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: 06/28/2023] [Revised: 09/26/2023] [Accepted: 10/27/2023] [Indexed: 12/01/2023] Open
Abstract
Introduction Butterfly vertebra is a rare congenital anomaly that is observed both in isolation and also as part of syndromic diseases. In prenatal ultrasonic scans the typical shapes of the two halves for butterfly vertebra are wedge-shaped or triangular. In the case we presented, the 3 dimensional computed tomography (3D CT) showed that the shape was unusual and rare. To improve the prenatal ultrasonic discriminability of this rare form of butterfly vertebra we used multi-directional ultrasonic images, corresponding to postpartum 3D CT images. Case report A 25-year-old woman was referred to our department for ultrasound screening. The routine fetal back spinal scan yielded findings indicative of an anomaly within the ninth thoracic vertebral body. The affected vertebra was examined by two-dimensional (2D) and three-dimensional (3D) ultrasound while the fetus was prone and supine. The focussed scanning of the fetal spine from the back, anterior and lateral approaches aided us to reach the final prenatal diagnosis of butterfly vertebra with asymmetric halves.The diagnosis of butterfly vertebra was confirmed by the radiologist with 3D CT after the woman chose to terminate the pregnancy due to multiple malformations. In 3D CT, the body of the ninth thoracic vertebra appeared to be two lateral halves of different sizes, and the bigger half was C-shaped. When prenatal ultrasonic images and postnatal CT images were compared, the echoic shape of the affected vertebra scanned from the front right side was very similar to the CT. Conclusion Due to the variable sizes and shapes of vertebrae affected in butterfly vertebra, prenatal diagnosis can be difficult using ultrasound. When the presence of fetal vertebral abnormalities is suspected, it is imperative for sonographers to adopt a comprehensive approach that extends beyond the conventional spinal examination performed solely from the dorsal aspect of the fetus. Instead, a thorough assessment should involve scanning the fetus from various angles, including anterior and lateral perspectives, in order to obtain a comprehensive and detailed evaluation of the identified vertebra.
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Affiliation(s)
- Jia-Qi Hu
- Department of Ultrasonography of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Yu-Guo Zhang
- Department of Ultrasonography of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Wei Feng
- Department of Ultrasound, Xiangyang No. 1 People's Hospital, Hubei University of Medicine, Xiangyang 441000, China
| | - Hua Shi
- Department of Ultrasonography of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan 430060, China
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He ZN, Zhang CY, Zhao YW, He SL, Li Y, Shi BL, Hu JQ, Qi RZ, Hua BJ. Regulation of T cells by myeloid-derived suppressor cells: emerging immunosuppressor in lung cancer. Discov Oncol 2023; 14:185. [PMID: 37857728 PMCID: PMC10587041 DOI: 10.1007/s12672-023-00793-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 09/18/2023] [Indexed: 10/21/2023] Open
Abstract
Myeloid-derived suppressor cells (MDSCs), major components maintaining the immune suppressive microenvironment in lung cancer, are relevant to the invasion, metastasis, and poor prognosis of lung cancer, through the regulation of epithelial-mesenchymal transition, remodeling of the immune microenvironment, and regulation of angiogenesis. MDSCs regulate T-cell immune functions by maintaining a strong immunosuppressive microenvironment and promoting tumor invasion. This raises the question of whether reversing the immunosuppressive effect of MDSCs on T cells can improve lung cancer treatment. To understand this further, this review explores the interactions and specific mechanisms of different MDSCs subsets, including regulatory T cells, T helper cells, CD8 + T cells, natural killer T cells, and exhausted T cells, as part of the lung cancer immune microenvironment. Second, it focuses on the guiding significance confirmed via clinical liquid biopsy and tissue biopsy that different MDSC subsets improve the prognosis of lung cancer. Finally, we conclude that targeting MDSCs through action targets or signaling pathways can help regulate T-cell immune functions and suppress T-cell exhaustion. In addition, immune checkpoint inhibitors targeting MDSCs may serve as a new approach for enhancing the efficiency of immunotherapy and targeted therapy for lung cancer in the future, providing better comprehensive options for lung cancer treatment.
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Affiliation(s)
- Zhong-Ning He
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | | | - Yu-Wei Zhao
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Shu-Lin He
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- Shanxi Medical University, Shanxi, China
| | - Yue Li
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- Shanxi Medical University, Shanxi, China
| | - Bo-Lun Shi
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Jia-Qi Hu
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- Shanxi Medical University, Shanxi, China
| | - Run-Zhi Qi
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China.
| | - Bao-Jin Hua
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China.
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Chen N, Sun XY, Ding ZC, Hu JQ, Li WJ, Zhan L, Xie ZW. Small Extracellular Vesicles Secreted by Peri-urethral Tissues Regulate Fibroblast Function and Contribute to the Pathogenesis of Female Stress Urinary Incontinence. Curr Med Sci 2023; 43:803-810. [PMID: 37405606 DOI: 10.1007/s11596-023-2737-2] [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: 06/06/2022] [Accepted: 11/02/2022] [Indexed: 07/06/2023]
Abstract
OBJECTIVE This study aimed to explore the existence of small extracellular vesicles (sEVs) in peri-urethral tissues and the role of abnormal expression of sEVs in the pathogenesis of female stress urinary incontinence (SUI). METHODS sEVs were extracted from peri-urethral vaginal wall tissues using differential centrifugation and were observed by transmission electron microscopy (TEM). The number of sEVs and their protein contents were compared between SUI and control groups using nanoparticle tracking analysis (NTA) and bicinchoninic acid (BCA) protein assay. Fibroblasts were cultured separately with SUI (SsEVs group) and normal tissue sEVs (NsEVs group). Proliferation and migration of fibroblasts were compared between groups using CCK-8 and wound healing assays, respectively. Expression levels of collagen I and III were compared among blank control (BC), NsEVs, and SsEVs groups using real-time PCR. Protein mass spectrometry was used to test the differentially expressed proteins contained in sEVs between groups. RESULTS sEVs were extracted and found under the electron microscope. There were significantly more sEVs extracted from the SUI group compared to the normal group. Fibroblasts showed increased proliferative and decreased migratory abilities, and expressed more collagen in the SsEVs group compared to the NsEVs and BC groups. Protein spectrum analysis demonstrated several differentially expressed targets, including components of microfibrils, elastin polymer, and anti-inflammatory factors. CONCLUSION sEVs were detected in the peri-urethral tissues. SUI tissues expressed more sEVs than control. The abnormal expression of sEVs and their protein contents may contribute to the pathogenesis and progression of SUI.
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Affiliation(s)
- Ning Chen
- Department of Gynecology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, 310000, China
| | - Xiao-Yan Sun
- Department of Gynecology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, 310000, China
| | - Zhi-Chen Ding
- Department of Gynecology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, 310000, China
| | - Jia-Qi Hu
- Department of Gynecology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, 310000, China
| | - Wen-Juan Li
- Department of Gynecology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, 310000, China
| | - Li Zhan
- Department of Gynecology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, 310000, China
| | - Zhen-Wei Xie
- Department of Gynecology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, 310000, China.
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Lai YX, Fu JY, Wu SF, Li RY, Hu JQ, Wang YX, Martins MCL, Ren KF, Ji J, Fu GS. A pDNA/rapamycin nanocomposite coating on interventional balloons for inhibiting neointimal hyperplasia. J Mater Chem B 2023. [PMID: 37222145 DOI: 10.1039/d3tb00344b] [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: 05/25/2023]
Abstract
Drug-coated balloon (DCB) is a therapeutic method that can effectively deliver antiproliferative drugs such as paclitaxel and rapamycin (RAPA) with no permanent implants left behind. However, delayed reendothelialization due to the toxicity of the delivered drugs leads to poor therapeutic effects. Here, we propose a new design of DCB coating, which incorporates both vascular endothelial growth factor (VEGF)-encoding plasmid DNA (pDNA) that can promote endothelial repair and RAPA into protamine sulfate (PrS). We demonstrate that the PrS/pDNA/RAPA coating had stability and good anticoagulation properties in vitro. We further show that the coating exhibited excellent transfer capacity from balloon substrates to vessel walls both in vitro and in vivo. Furthermore, the PrS/pDNA/RAPA coating effectively inhibited neointimal hyperplasia after balloon-induced vascular injuries through the down-regulation of the mammalian target of Rapamycin (mTOR) and promoted endothelium regeneration through increased expression of VEGF in vivo. These data indicate that our nanocomposite coating has great potential for use as a novel coating of DCB to treat neointimal hyperplasia after vascular injuries.
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Affiliation(s)
- Yu-Xian Lai
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, International Research Center for X Polymers, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China.
| | - Jia-Yin Fu
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Department of Cardiology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, 310016, China.
| | - Shao-Fei Wu
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Department of Cardiology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, 310016, China.
| | - Ren-Yun Li
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, International Research Center for X Polymers, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China.
| | - Jia-Qi Hu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, International Research Center for X Polymers, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China.
| | - You-Xiang Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, International Research Center for X Polymers, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China.
| | - M Cristina L Martins
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, P-4200-135, Porto, Portugal
| | - Ke-Feng Ren
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, International Research Center for X Polymers, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China.
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Department of Cardiology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, 310016, China.
| | - Jian Ji
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, International Research Center for X Polymers, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China.
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Department of Cardiology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, 310016, China.
| | - Guo-Sheng Fu
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Department of Cardiology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, 310016, China.
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Fan L, Hu JQ, Wen Y, Chen YY, Luo M, Liu ZH. [Correlation of sperm HDS with sperm DFI and morphology and its influence on in vitro fertilization in infertile males]. Zhonghua Nan Ke Xue 2023; 29:317-322. [PMID: 38598215] [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] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
OBJECTIVE To invest the correlation of sperm high DNA stainability (HDS) with sperm DNA fragmentation index (DFI) and sperm abnormalities and its influence on in vitro fertilization (IVF) in male infertility patients, and assess the clinical value of HDS. METHODS Using flow cytometry-assisted sperm chromatin structure assay (SCSA), we examined sperm HDS and sperm DFI in 322 male infertility patients undergoing IVF due to female fallopian tube factors only. Based on sperm HDS, we divided the patients into five groups and compared the semen routine parameters, percentage of morphologically abnormal sperm (MAS), sperm DFI, rates of fertilization, cleavage and high-quality embryos, and pregnancy outcomes among different HDS groups. RESULTS Among the 322 male infertility patients, 119 (36.96%) were found with a sperm HDS of 0 - <5%, 117 (36.34%) of 5% - <10%, 50 (15.53%) of 10% - <15%, 23 (7.14%) of 15% - <20%, and 13 (4.03%) of ≥20%. Sperm concentration, motility and progressive motility were decreased with the increase of sperm HDS, but with no statistically significant difference (P > 0.05), so were the rates of fertilization, high-quality embryos and pregnancy (P > 0.05). Sperm DFI and sperm abnormality were correlated positively with sperm HDS (r = 0.236, r = 0.203). The rate of early abortion was remarkably increased in those with sperm HDS greater than 10%. CONCLUSION Sperm HDS may be a risk indicator of sperm DFI and sperm abnormality, and can be used as a predictive indicator of early abortion in IVF.
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Affiliation(s)
- Lang Fan
- Center of Reproductive Medicine, Material and Child Health Hospital of Hunan Province, Changsha, Hunan 410008, China
| | - Jia-Qi Hu
- Center of Reproductive Medicine, Material and Child Health Hospital of Hunan Province, Changsha, Hunan 410008, China
| | - Yi Wen
- Center of Reproductive Medicine, Material and Child Health Hospital of Hunan Province, Changsha, Hunan 410008, China
| | - Yuan-Yuan Chen
- Center of Reproductive Medicine, Material and Child Health Hospital of Hunan Province, Changsha, Hunan 410008, China
| | - Man Luo
- Center of Reproductive Medicine, Material and Child Health Hospital of Hunan Province, Changsha, Hunan 410008, China
| | - Zhao-Hua Liu
- Center of Reproductive Medicine, Material and Child Health Hospital of Hunan Province, Changsha, Hunan 410008, China
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Wang DG, Wang CY, Hu JQ, Wang JJ, Liu WC, Zhang WJ, Du XR, Wang H, Zhu LL, Sui HY, Li YZ, Wu C. Constructing a Myxobacterial Natural Product Database to Facilitate NMR-Based Metabolomics Bioprospecting of Myxobacteria. Anal Chem 2023; 95:5256-5266. [PMID: 36917632 DOI: 10.1021/acs.analchem.2c05145] [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: 03/16/2023]
Abstract
Myxobacteria are fascinating prokaryotes featuring a potent capacity for producing a wealth of bioactive molecules with intricate chemical topology as well as intriguing enzymology, and thus it is critical to developing an efficient pipeline for bioprospecting. Herein, we construct the database MyxoDB, the first public compendium solely dedicated to myxobacteria, which enabled us to provide an overview of the structural diversity and taxonomic distribution of known myxobacterial natural products. Moreover, we demonstrated that the cutting-edge NMR-based metabolomics was effective to differentiate the biosynthetic priority of myxobacteria, whereby MyxoDB could greatly streamline the dereplication of multifarious known compounds and accordingly speed up the discovery of new compounds. This led to the rapid identification of a class of linear di-lipopeptides (archangimins) and a rare rearranged sterol (corasterol) that were endowed with unique chemical architectures and/or biosynthetic enzymology. We also showcased that NMR-based metabolomics, MyxoDB, and genomics can also work concertedly to accelerate the targeted discovery of a polyketidic compound pyxipyrrolone C. All in all, this study sets the stage for the discovery of many more novel natural products from underexplored myxobacterial resources.
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Affiliation(s)
- De-Gao Wang
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, China
| | - Chao-Yi Wang
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, China
| | - Jia-Qi Hu
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, China
| | - Jing-Jing Wang
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, China
| | - Wen-Chao Liu
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, China
| | - Wen-Juan Zhang
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, China
| | - Xin-Ran Du
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, China
| | - Han Wang
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, China
| | - Le-Le Zhu
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, China
| | - Hai-Yan Sui
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, China
| | - Yue-Zhong Li
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, China
| | - Changsheng Wu
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, China
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Hu JQ, Zhang A, Wang H, Niu L, Wang QX, Zhu LL, Li YZ, Wu C. Discovery and Biosynthesis of Glycosylated Cycloheximide from a Millipede-Associated Actinomycete. J Nat Prod 2023; 86:340-345. [PMID: 36693198 DOI: 10.1021/acs.jnatprod.2c00951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Chemical redundancy of microbial natural products (NPs) underscores the importance to exploit new resources of microorganisms. Insect-associated microbes are prolific but largely underexplored sources of diverse NPs. Herein, we discovered the new compound α-l-rhamnosyl-actiphenol (1) from a millipede-associated Streptomyces sp. ML6, which is the first glycosylated cycloheximide-class natural product. Interestingly, bioinformatics analysis of the ML6 genome revealed that the biosynthesis of 1 involves a cooperation between two gene clusters (chx and rml) located distantly on the genome of ML6. We also carried out in vitro enzymatic glycosylation of cycloheximide using an exotic promiscuous glycosyltransferase BsGT-1, which resulted in the production of an additional cycloheximide glycoside cycloheximide 7-O-β-d-glucoside (5). Although the antifungal and cytotoxic activities of the new compounds 1 and 5 were attenuated relative to those of cycloheximide, our work not only enriches the chemical repertoire of the cycloheximide family but also provides new insights into the structure-activity relationship optimization and ecological roles of cycloheximide.
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Affiliation(s)
- Jia-Qi Hu
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, 266237 Qingdao, People's Republic of China
| | - Ai Zhang
- Fetal Medicine Center, Qingdao Women and Children's Hospital, Qingdao University, 266071 Qingdao, People's Republic of China
| | - Han Wang
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, 266237 Qingdao, People's Republic of China
| | - Luo Niu
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, 266237 Qingdao, People's Republic of China
| | - Qing-Xia Wang
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, 266237 Qingdao, People's Republic of China
| | - Le-Le Zhu
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, 266237 Qingdao, People's Republic of China
| | - Yue-Zhong Li
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, 266237 Qingdao, People's Republic of China
| | - Changsheng Wu
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, 266237 Qingdao, People's Republic of China
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Qi RZ, He SL, Li Y, Zhao YW, Geng L, He J, Cheng MQ, Hu JQ, Li CH, Hua BJ. Retrospective Clinical Study on Integrated Chinese and Western Medicine in Treatment of Limited-Stage Small Cell Lung Cancer. Chin J Integr Med 2023:10.1007/s11655-022-3682-9. [PMID: 36607585 DOI: 10.1007/s11655-022-3682-9] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/15/2022] [Indexed: 01/07/2023]
Abstract
OBJECTIVE To investigate the efficacy of integrated Chinese and Western medicine extending the progression-free survival (PFS) and overall survival (OS) of limited-stage small cell lung cancer (LS-SCLC) patients after the first-line chemoradiotherapy. METHODS The data of 67 LS-SCLC patients who received combined treatment of CM and Western medicine (WM) between January 2013 and May 2020 at the outpatient clinic of Guang'anmen Hospital were retrospectively analyzed. Thirty-six LS-SCLC patients who received only WM treatment was used as the WM control group. The medical data of the two groups were statistically analyzed. Survival analysis was performed using the product-limit method (Kaplan-Meier analysis). The median OS and PFS were calculated, and survival curves were compared by the Log rank test. The cumulative survival rates at 1, 2, and 5 years were estimated by the life table analysis. Stratified survival analysis was performed between patients with different CM administration time. RESULTS The median PFS in the CM and WM combination treatment group and the WM group were 19 months (95% CI: 12.357-25.643) vs. 9 months (95% CI: 5.957-12.043), HR=0.43 (95% CI: 0.27-0.69, P<0.001), respectively. The median OS in the CM and WM combination group and the WM group were 34 months (95% CI could not be calculated) vs. 18.63 months (95% CI: 16.425-20.835), HR=0.40 (95% CI: 0.24-0.66, P<0.001), respectively. Similar results were obtained in the further stratified analysis of whether the duration of CM administration exceeded 18 and 24 months (P<0.001). CONCLUSION The combination treatment of CM and WM with continuing oral administration of CM treatment after the first-line chemoradiotherapy for LS-SCLC patients produced better prognosis, lower risks of progression, and longer survival than the WM treatment alone. (Registration No. ChiCTR2200056616).
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Affiliation(s)
- Run-Zhi Qi
- Department of Oncology, Guang'anmen Hospital, China Academy of Chinese Medicine Sciences, Beijing, 100053, China
| | - Shu-Lin He
- Graduate School, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Yue Li
- Graduate School, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Yu-Wei Zhao
- Graduate School, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Liang Geng
- Department of Integrated Traditional Chinese and Western Medicine Oncology, Henan Cancer Hospital, Zhengzhou, 100053, China
| | - Jie He
- Graduate School, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Meng-Qi Cheng
- Department of Oncology, Guang'anmen Hospital, China Academy of Chinese Medicine Sciences, Beijing, 100053, China
| | - Jia-Qi Hu
- Graduate School, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Cong-Huang Li
- Department of Oncology, Guang'anmen Hospital, China Academy of Chinese Medicine Sciences, Beijing, 100053, China.
| | - Bao-Jin Hua
- Department of Oncology, Guang'anmen Hospital, China Academy of Chinese Medicine Sciences, Beijing, 100053, China
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13
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Yu HB, Hu JQ, Han BJ, Cao HJ, Chen ST, Chen X, Xiong HT, Gao J, Du YY, Zheng HG. Evaluation of efficacy and safety for compound kushen injection combined with intraperitoneal chemotherapy for patients with malignant ascites: A systematic review and meta-analysis. Front Pharmacol 2023; 14:1036043. [PMID: 36937874 PMCID: PMC10020185 DOI: 10.3389/fphar.2023.1036043] [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: 09/03/2022] [Accepted: 02/23/2023] [Indexed: 03/06/2023] Open
Abstract
Objectives: Compound Kushen injection (CKI) combined with intraperitoneal chemotherapy (IPC) is widely used in the treatment of malignant ascites (MA). However, evidence about its efficacy and safety remains limited. This review aimed to evaluate the efficacy and safety of CKI combined with IPC for the treatment of MA. Methods: Protocol of this review was registered in PROSPERO (CRD42022304259). Randomized controlled trials (RCTs) on the efficacy and safety of IPC with CKI for the treatment of patients with MA were searched through 12 electronic databases and 2 clinical trials registration platforms from inception until 20 January 2023. The Cochrane risk-of-bias tool was used to assess the quality of the included trials through the risk of bias assessment. We included RCTs that compared IPC single used or CKI combined with IPC for patients with MA schedule to start IPC. The primary outcome was identified as an objective response rate (ORR), while the secondary outcomes were identified as the quality of life (QoL), survival time, immune functions, and adverse drug reactions (ADRs). The Revman5.4 and Stata17 software were used to calculate the risk ratio (RR) at 95% confidence intervals (CI) for binary outcomes and the mean difference (MD) at 95% CI for continuous outcomes. The certainty of the evidence was assessed according to the GRADE criteria. Results: A total of 17 RCTs were assessed, which included 1200 patients. The risk of bias assessment of the Cochrane risk-of-bias tool revealed that one study was rated high risk and the remaining as unclear or low risk. Meta-analysis revealed that CKI combined with IPC had an advantage in increasing ORR (RR = 1.31, 95% CI 1.20 to 1.43, p < 0.00001) and QoL (RR = 1.50, 95% CI 1.23 to 1.83, p < 0.0001) when compared with IPC alone. Moreover, the combined treatment group showed a lower incidence of myelosuppression (RR = 0.51, 95%CI 0.40-0.64, p < 0.00001), liver dysfunction (RR = 0.33, 95%CI 0.16 to 0.70, p = 0.004), renal dysfunction (RR = 0.39, 95%CI 0.17 to 0.89, p = 0.02), and fever (RR = 0.51, 95%CI 0.35 to 0.75, p = 0.0007) compared to those of the control group. The quality of evidence assessment through GRADE criteria showed that ORR, myelosuppression, and fever were rated moderate, renal dysfunction and liver dysfunction were rated low, and QoL and abdominal pain were rated very low. Conclusion: The efficacy and safety of CKI combined with IPC were superior to that with IPC alone for the treatment of MA, which indicates the potentiality of the treatment. However, more high-quality RCTs are required to validate this conclusion. Systematic Review Registration: [https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42022304259], identifier [PROSPERO 2022 CRD42022304259].
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Affiliation(s)
- Hui-Bo Yu
- Department of Oncology, Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- Graduate School, Beijing University of Chinese Medicine, Beijing, China
| | - Jia-Qi Hu
- Department of Oncology, Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- Graduate School, Beijing University of Chinese Medicine, Beijing, China
| | - Bao-Jin Han
- Department of Oncology, Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- Graduate School, Beijing University of Chinese Medicine, Beijing, China
| | - Hui-Juan Cao
- Graduate School, Beijing University of Chinese Medicine, Beijing, China
- Centre for Evidence-Based Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Shun-Tai Chen
- Graduate School, Beijing University of Chinese Medicine, Beijing, China
| | - Xin Chen
- Department of Oncology, Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Hong-Tai Xiong
- Department of Oncology, Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Jin Gao
- Department of Oncology, Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- Graduate School, Beijing University of Chinese Medicine, Beijing, China
| | - Yan-Yuan Du
- Department of Oncology, Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Hong-Gang Zheng
- Department of Oncology, Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- *Correspondence: Hong-Gang Zheng,
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Hu JQ, Huang WP, Wang J, Ren KF, Ji J. UV-triggered Polymerization of Polyelectrolyte Composite Coating with Pore Formation and Lubricant Infusion. Chin J Polym Sci 2022. [DOI: 10.1007/s10118-022-2851-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Hu JQ, Wang ZW, Luo J, Luo M, Fan L. [Correlation of sperm DNA fragmentation index and high DNA stainability with teratospermia severity and the patient's age: A study of 1 393 infertile males]. Zhonghua Nan Ke Xue 2022; 28:881-885. [PMID: 37838953] [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] [Subscribe] [Scholar Register] [Indexed: 10/17/2023]
Abstract
OBJECTIVE To investigate the correlation of the severity of teratospermia and the age of the patient with sperm DNA fragmentation index (DFI) and high DNA stainability (HDS) in male infertility patients. METHODS We collected semen samples from 1 393 infertile males from July to December 2021. Based on the WHO Laboratory Manual for the Examination and Processing of Human Semen (5th Ed), we performed sperm morphology analysis, examined perm DFI and HDS by flow cytometry, and analyzed the impacts of the severity of teratospermia and the age of the patients on sperm DFI and HDS. RESULTS Among the 1 393 male infertility patients, 124 (8.90%) were found with extremely severe, 214 (15.36%) with severe, 235 (16.87%) with moderate, 163 (11.70%) with mild teratospermia, and 657 (47.16%) with morphologically normal sperm (MNS), with statistically significant differences in sperm DFI and HDS among the five groups, and 822 (59.00%) were aged <35 years, 306 (21.97%) 35-<40 years, 223 (16.01%) 40-<45 years and 42 (3.02%) ≥45 years, with statistically significant differences in sperm DFI and HDS among different age groups (P < 0.05). Sperm DFI and HDS were correlated negatively with the percentage of MNS (P > 0.05), but positively with the age of the patients (P < 0.05). CONCLUSION Increased severity of teratospermia and age of the patient can increase sperm DFI and HDS, and sperm nuclear chromatin integrity and maturity are important indicators of male fertility.
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Affiliation(s)
- Jia-Qi Hu
- Center of Reproductive Medicine, Hunan Provincial Research Institute of Reproductive Medicine / Maternal and Child Health Hospital of Hunan Province, Changsha, Hunan 410008, China
| | - Zhong-Wei Wang
- Center of Reproductive Medicine, Hunan Provincial Research Institute of Reproductive Medicine / Maternal and Child Health Hospital of Hunan Province, Changsha, Hunan 410008, China
| | - Jie Luo
- Xiangya Medical College of Central South University, Changsha, Hunan 410013, China
| | - Man Luo
- Center of Reproductive Medicine, Hunan Provincial Research Institute of Reproductive Medicine / Maternal and Child Health Hospital of Hunan Province, Changsha, Hunan 410008, China
| | - Lang Fan
- Center of Reproductive Medicine, Hunan Provincial Research Institute of Reproductive Medicine / Maternal and Child Health Hospital of Hunan Province, Changsha, Hunan 410008, China
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Hu JQ, Zhang J, Ru B, Cai WJ, Liu WL, Guo R, Ji ZW, Wan Q, Xu LH, Cheng Y, Zhang J, Li S. Computed tomography-guided radiofrequency ablation of cervical intervertebral discs for the treatment of refractory cervicogenic headache: A retrospective chart review. Headache 2022; 62:839-847. [PMID: 35864604 DOI: 10.1111/head.14361] [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: 01/23/2022] [Revised: 05/18/2022] [Accepted: 05/18/2022] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To evaluate the feasibility and efficacy of computed tomography (CT)-guided radiofrequency ablation (RFA) of cervical intervertebral discs for the treatment of discogenic cervicogenic headache (CEH). BACKGROUND Some patients with CEH experience no obvious therapeutic effect after conventional therapy, particularly patients with refractory CEH originating from abnormal cervical intervertebral discs. Treatment for this type of CEH remains poorly characterized. METHODS Using a single intervention arm, pretest/posttest design, we retrospectively analyzed the data of patients who underwent CT-guided RFA of cervical intervertebral discs for CEH at the Pain Medicine Center of Zhejiang Provincial People's Hospital from January 2017 to April 2021. If conservative treatment failed in patients with discogenic CEH, we classified the patients as having refractory CEH and performed RFA of cervical intervertebral discs. We used a numeric rating scale (NRS) to assess pain intensity for 6 months. We also compared therapeutic outcome of patients with different characteristics. RESULTS A total of 44 patients who underwent CT-guided RFA of cervical intervertebral discs were enrolled and 41 of them were analyzed in the present study. The preoperative median (25th, 75th) NRS score was 4 (4, 5), and it was significantly reduced to 1 (0, 4) 6 months after RFA (p < 0.001). The number of patients with ≥50% of their pain relieved after 6 months was 28 of 41 (68%). No serious treatment-related complications occurred in this study. Compared with single-level RFA, multi-level RFA shows greater effects on pain intensity reduction (p = 0.032) and pain relief rate (p = 0.047) of patients. CONCLUSION In patients who have discogenic CEH, CT-guided RFA of the cervical intervertebral discs appears to be a promising treatment with no serious complications.
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Affiliation(s)
- Jia-Qi Hu
- Department of Pain, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, China
| | - Juan Zhang
- Department of Pain, Zhejiang University of Traditional Chinese Medicine First Affiliated Hospital, Zhejiang University of Traditional Chinese Medicine, Hangzhou, China
| | - Bin Ru
- Department of Pain, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, China
| | - Wen-Jun Cai
- Department of Pain, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, China
| | - Wen-Long Liu
- Department of Pain, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, China
| | - Ran Guo
- Department of Pain, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, China
| | - Zhong-Wei Ji
- Department of Pain, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, China
| | - Quan Wan
- Department of Pain, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, China
| | - Lang-Hai Xu
- Department of Pain, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, China
| | - Yan Cheng
- Department of Pain, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, China
| | - Jie Zhang
- Department of Orthopedics, Lu'an Hospital of Chinese Medicine, Anhui College of Traditional Chinese Medicine, Lu'an, China
| | - Shun Li
- Department of Pain, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, China
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Peng X, Zhang T, Zheng J, Lv X, Zhang H, Hu JQ, Tian W, Tan S, Ji J. Centrifugal Force Regularized Laponite@Graphene Hybrid Membranes with Ordered Interlayer Mass Transfer Channels and High Structural Stability for High-Rate Supercapacitors. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c03877] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Xianqiang Peng
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Tingting Zhang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Jie Zheng
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Xingbin Lv
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Hualian Zhang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Jia-Qi Hu
- College of Science, Jiangxi Agricultural University, Nanchang 330045, P. R. China
| | - Wen Tian
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Shuai Tan
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Junyi Ji
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
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Liu H, Zhong J, Hu J, Han C, Li R, Yao X, Liu S, Chen P, Liu R, Ling F. Single-cell transcriptomics reveal DHX9 in mature B cell as a dynamic network biomarker before lymph node metastasis in CRC. Mol Ther Oncolytics 2021; 22:495-506. [PMID: 34553035 PMCID: PMC8433066 DOI: 10.1016/j.omto.2021.06.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 02/06/2021] [Accepted: 06/08/2021] [Indexed: 12/13/2022] Open
Abstract
Increasing evidence indicates that mature B cells in the adjacent tumor tissue, both as an intermediate state, are vital in advanced colorectal cancer (CRC), which is associated with a low survival rate. Developing predictive biomarkers that detect the tipping point of mature B cells before lymph node metastasis in CRC is critical to prevent irreversible deterioration. We analyzed B cells in the adjacent tissues of CRC samples from different stages using the dynamic network biomarker (DNB) method. Single-cell profiling of 725 CRC-derived B cells revealed the emergence of a mature B cell subtype. Using the DNB method, we identified stage II as a critical period before lymph node metastasis and that reversed difference genes triggered by DNBs were enriched in the Janus kinase (JAK)-signal transducer and activator of transcription (STAT) pathway involving B cell immune capability. DHX9 (DEAH-box helicase 9) was a specific para-cancerous tissue DNB key gene. The dynamic expression levels of DHX9 and its proximate network genes involved in B cell-related pathways were reversed at the network level from stage I to III. In summary, DHX9 in mature B cells of CRC-adjacent tissues may serve as a predictable biomarker and a potential immune target in CRC progression.
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Affiliation(s)
- Huisheng Liu
- School of Biology and Biological Engineering, South China University of Technology, 381 Wushan Road, Guangzhou, Guangdong 510641, China
| | - JiaYuan Zhong
- School of Mathematics, South China University of Technology, Guangzhou, Guangdong 510641, China
| | - JiaQi Hu
- School of Biology and Biological Engineering, South China University of Technology, 381 Wushan Road, Guangzhou, Guangdong 510641, China
| | - ChongYin Han
- School of Biology and Biological Engineering, South China University of Technology, 381 Wushan Road, Guangzhou, Guangdong 510641, China
| | - Rui Li
- Department of Pathology, Southern Medical University Nanfang Hospital, Guangzhou, Guangdong 510515, China
| | - XueQing Yao
- Department of General Surgery, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, School of Medicine, South China University of Technology, Guangzhou, Guangdong 510080, China
| | - ShiPing Liu
- Shenzhen Key Laboratory of Single-Cell Omics, BGI-Shenzhen, Shenzhen 518083, China
| | - Pei Chen
- School of Mathematics, South China University of Technology, Guangzhou, Guangdong 510641, China
| | - Rui Liu
- School of Mathematics, South China University of Technology, Guangzhou, Guangdong 510641, China
- Pazhou Lab, Guangzhou, Guangdong 510330, China
| | - Fei Ling
- School of Biology and Biological Engineering, South China University of Technology, 381 Wushan Road, Guangzhou, Guangdong 510641, China
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Zhu GH, Li J, Li J, Xu BW, Wang HP, Wang XM, Hu JQ, Dai MH. The characteristics and related factors of insomnia among postoperative patients with gastric cancer: a cross-sectional survey. Support Care Cancer 2021; 29:7315-7322. [PMID: 34046726 PMCID: PMC8550093 DOI: 10.1007/s00520-021-06295-6] [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: 01/16/2021] [Accepted: 05/14/2021] [Indexed: 01/30/2023]
Abstract
Purpose This study aims to explore the characteristics and related factors of insomnia of patients after operation for gastric cancer. Methods A cross-sectional survey was carried out and finally 115 patients with insomnia after operation for gastric cancer were included. The general information, gastric cancer-related information, sleep quality, and other symptoms were investigated. Results ① The Pittsburgh sleep quality index score of most insomnia patients after gastric cancer surgery was 11-15 points, and the sleep quality rating was “poor”. ② The sleep quality of patients with insomnia after surgery for gastric cancer is related to the number of chemotherapy cycles, fatigue, and depression. ③ The probability of reduced sleep quality with the number of chemotherapy cycles >6 is 3.640 times that of ≤6. The probability of reduced sleep quality during moderate to severe fatigue was 4.390 times that of patients with no or mild fatigue. Conclusion Attention to related factors may be associated with improvement of sleep quality in patients with gastric cancer after surgery. Supplementary Information The online version contains supplementary material available at 10.1007/s00520-021-06295-6.
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Affiliation(s)
- Guang-Hui Zhu
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, No. 5, Beixian Ge Street, Xicheng District, Beijing, 100053, China.,Graduate School, Beijing University of Chinese Medicine, No. 11, Beisanhuan Dong Road, Chaoyang District, Beijing, 100029, China
| | - Juan Li
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, No. 5, Beixian Ge Street, Xicheng District, Beijing, 100053, China.,Graduate School, Beijing University of Chinese Medicine, No. 11, Beisanhuan Dong Road, Chaoyang District, Beijing, 100029, China
| | - Jie Li
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, No. 5, Beixian Ge Street, Xicheng District, Beijing, 100053, China.
| | - Bo-Wen Xu
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, No. 5, Beixian Ge Street, Xicheng District, Beijing, 100053, China.,Graduate School, Beijing University of Chinese Medicine, No. 11, Beisanhuan Dong Road, Chaoyang District, Beijing, 100029, China
| | - He-Ping Wang
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, No. 5, Beixian Ge Street, Xicheng District, Beijing, 100053, China
| | - Xin-Miao Wang
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, No. 5, Beixian Ge Street, Xicheng District, Beijing, 100053, China
| | - Jia-Qi Hu
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, No. 5, Beixian Ge Street, Xicheng District, Beijing, 100053, China.,Graduate School, Beijing University of Chinese Medicine, No. 11, Beisanhuan Dong Road, Chaoyang District, Beijing, 100029, China
| | - Ming-Hao Dai
- Peking University Health Science Center, No. 38, Xueyuan Road, Haidian District, Beijing, 100191, China
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Hu JQ, Wang JJ, Li YL, Zhuo L, Zhang A, Sui HY, Li XJ, Shen T, Yin Y, Wu ZH, Hu W, Li YZ, Wu C. Combining NMR-Based Metabolic Profiling and Genome Mining for the Accelerated Discovery of Archangiumide, an Allenic Macrolide from the Myxobacterium Archangium violaceum SDU8. Org Lett 2021; 23:2114-2119. [PMID: 33689374 DOI: 10.1021/acs.orglett.1c00265] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
An unprecedented 19-membered allenic macrolide archangiumide (1) was discovered from the myxobacterium Archangium violaceum SDU8 by integrating NMR-based metabolic profiling and genome mining. Its biosynthesis pathway was proposed based on the architectural analysis of the encoding trans-AT PKS genes and validated by isotope labeling. The methodology of combing 2D NMR-based metabolic profiling and bioinformatics-aided structure prediction, as exemplified by this study, is anticipated to improve discovery efficiency of a broader range of microbial "dark matter".
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Affiliation(s)
- Jia-Qi Hu
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, 266237 Qingdao, P.R. China
| | - Jing-Jing Wang
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, 266237 Qingdao, P.R. China
| | - Yue-Lan Li
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, 266237 Qingdao, P.R. China
| | - Li Zhuo
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, 266237 Qingdao, P.R. China
| | - Ai Zhang
- Fetal Medicine Center, Qingdao Women and Children's Hospital, Qingdao University, 266071 Qingdao, P.R. China
| | - Hai-Yan Sui
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, 266237 Qingdao, P.R. China
| | - Xiao-Ju Li
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, 266237 Qingdao, P.R. China
| | - Tao Shen
- Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Shandong University, 250100 Jinan, PR China
| | - Yizhen Yin
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, 266237 Qingdao, P.R. China
| | - Zhi-Hong Wu
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, 266237 Qingdao, P.R. China
| | - Wei Hu
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, 266237 Qingdao, P.R. China
| | - Yue-Zhong Li
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, 266237 Qingdao, P.R. China
| | - Changsheng Wu
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, 266237 Qingdao, P.R. China
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Lv XB, Xie R, Ji JY, Liu Z, Wen XY, Liu LY, Hu JQ, Ju XJ, Wang W, Chu LY. A Novel Strategy to Fabricate Cation-Cross-linked Graphene Oxide Membrane with High Aqueous Stability and High Separation Performance. ACS Appl Mater Interfaces 2020; 12:56269-56280. [PMID: 33264002 DOI: 10.1021/acsami.0c15178] [Citation(s) in RCA: 17] [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] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Graphene oxide (GO) membranes have shown enormous promise in desalination and molecular/ionic sieving. However, the instability of GO membranes in aqueous solutions seriously hinders their practical applications. Herein, we report a novel and simple strategy to fabricate stable GO membranes in water-based environments through the insertion of various metal cations from metal foils (e.g., copper (Cu), iron (Fe), nickel (Ni), and zinc (Zn) foils) and natural deposition. Based on the cation-π, coordination, and electrostatic interaction between metal cations and GO nanosheets, the aqueous stability and mechanical strength of the membranes are significantly improved. The permeation rates for acetone, toluene, and p-xylene molecules across the GO membrane cross-linked by copper ions with a deposition time of 24 h are 0.966, 0.074, and 0.100 mol m-2 h-1, respectively. Moreover, this membrane displays excellent separation performance, and the separation factor of K+/Mg2+ is up to 68.8 in mono-/multivalent metal cation sieving, which indicate the effective molecular/ionic sieving performance. Meanwhile, the ionic sieving of the GO membrane cross-linked by copper ions has excellent repeatability and long-term stability. The versatility of this natural deposition strategy to fabricate GO membranes cross-linked by metal cations is investigated by using Fe foil, Zn foil, and Ni foil as well as other porous substrates such as polyvinylidene fluoride (PVDF), polyethersulfone (PES), and nylon membranes and filter paper. This fabrication strategy also enables low-cost preparation of large-area GO membranes. Therefore, GO membranes cross-linked by metal cations and prepared by this simple metal cation incorporation strategy have large potential application for molecular/ionic sieving in various solution systems.
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Affiliation(s)
- Xing-Bin Lv
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
| | - Rui Xie
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
| | - Jun-Yi Ji
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
| | - Zhuang Liu
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
| | - Xiao-Yu Wen
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
| | - Lu-Yue Liu
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
| | - Jia-Qi Hu
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
| | - Xiao-Jie Ju
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
| | - Wei Wang
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
| | - Liang-Yin Chu
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
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Abstract
OBJECTIVE We present a case with prenatal diagnosis of submucous cleft palate (SMCP) which was described using 2- and 3-dimensional (3D) ultrasonography in utero. CASE REPORT A 25-year-old pregnant woman was referred to our department for fetal ultrasound screening. After the detection of cardiac and spinal malformations of fetal, further detailed examination detected SMCP, which showed a gap within the hard palate on axial transversal view with the soft palate visible on sagittal view. The imaging of a defective hard palate in prenatal 3D ultrasonography is similar to that in postmortem 3D computed tomography reconstruction. CONCLUSION A gap within the hard palate and verification of the visibility of the soft palate should be key points in the prenatal diagnosis of SMCP. Three-dimensional ultrasonic imaging is helpful for displaying the shape and extent of the bony defect in SMCP.
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Affiliation(s)
- Jia-Qi Hu
- Department of Ultrasonography of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yu-Guo Zhang
- Department of Ultrasonography of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Wei Feng
- Department of Ultrasound, Xiangyang No.1 People's Hospital, Hubei University of Medicine, Xiangyang, China
| | - Hua Shi
- Department of Ultrasonography of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China
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Hu JQ, Zhang YG, He J, Liu Y, Huang J, Shi H. Application of two-dimensional and three-dimensional ultrasound in prenatal screening for brachydactyly deformity. Am J Transl Res 2020; 12:5827-5835. [PMID: 33042462 PMCID: PMC7540086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 07/26/2020] [Indexed: 06/11/2023]
Abstract
This study aims to summarize the characteristics of prenatal ultrasonography of the fetus with brachydactyly. From November 2015 to December 2016, a total of 10,866 pregnant women underwent prenatal ultrasound screening at the gestational age of 17-26 weeks. Targeted ultrasonographic imaging of the fetal hands was performed. The multi-view observation of fetal fingers by ultrasound was performed at different flexions of fingers (stretching, bending and fist) to observe the ultrasonographic manifestations of metacarpals and phalanges, and the number, size, shape and arrangement of the ossification centers of metacarpals and phalanges. A comparation was performed on the prenatal sonographic findings and the results of follow-up after termination of pregnancy or birth. The prenatal ultrasound detected six cases of brachydactyly. Among these cases, five cases were bilateral and one case was unilateral. In these cases, more than one ossification center of phalanxes were invisible or significantly smaller. Furthermore, among the six cases of brachydactyly, the women of four cases chose to terminate the pregnancy, while the women of the other two cases had no other abnormalities and gave birth. In the two cases with multiple malformations, one case was complicated with osteodysplasty, cleft lip and palate, and pleural effusion, while the other case was complicated with limb body wall complex and malformation of the heart. Overall, our results suggest that the targeted two- and three-dimensional ultrasound imaging of the fetal hands in the second trimester of pregnancy can improve the detection of severe brachydactyly.
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Affiliation(s)
- Jia-Qi Hu
- Department of Ultrasonography of Obstetrics and Gynecology, Renmin Hospital of Wuhan University Wuhan 430060, China
| | - Yu-Guo Zhang
- Department of Ultrasonography of Obstetrics and Gynecology, Renmin Hospital of Wuhan University Wuhan 430060, China
| | - Juan He
- Department of Ultrasonography of Obstetrics and Gynecology, Renmin Hospital of Wuhan University Wuhan 430060, China
| | - Yi Liu
- Department of Ultrasonography of Obstetrics and Gynecology, Renmin Hospital of Wuhan University Wuhan 430060, China
| | - Jia Huang
- Department of Ultrasonography of Obstetrics and Gynecology, Renmin Hospital of Wuhan University Wuhan 430060, China
| | - Hua Shi
- Department of Ultrasonography of Obstetrics and Gynecology, Renmin Hospital of Wuhan University Wuhan 430060, China
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Hu JQ, Liu Z, Chen ZH, Cai QW, Li XY, Xie R, Ju XJ, Wang W, Chu LY. Hybrid Graphene Oxide/Laponite Layered Membranes with Stable Two-Dimensional Nanochannels for Efficient Separations in Aqueous Environments. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c02103] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Jia-Qi Hu
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Zhuang Liu
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Zhi-Hao Chen
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Quan-Wei Cai
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Xiao-Ying Li
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Rui Xie
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Xiao-Jie Ju
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Wei Wang
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Liang-Yin Chu
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, China
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Huang ZY, Xia GM, Hu JQ, Chen TT, Zheng JL, Wu Q, Chi DC, Wang F. [Optimization of mulched drip irrigation amount for peanut based on AHC model in northwestern Liaoning, China]. Ying Yong Sheng Tai Xue Bao 2020; 31:483-492. [PMID: 32476341 DOI: 10.13287/j.1001-9332.202002.013] [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] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
To evaluate the applicability of AHC (agro-hydrological chemical and crop systems simulator) model and explore the suitable irrigation amount for peanut (Arachis hypogaea) under mulched drip irrigation in the semi-arid areas of northwestern Liaoning Province, based on the two-year field experimental data of peanut in 2016 and 2017, the model parameters were firstly chosen for global sensitivity analysis. Then, module parameters of soil moisture and crop growth were calibrated and validated. Finally, AHC model was used to analyze the responses of peanut yield and water use efficiency (WUE) to different irrigation amounts. The results showed that the two extremely sensitive parameters of the model were saturated hydraulic conductivity in the first and second layers of soil. Root mean square error (RMSE) and mean relative error (MRE) between simulated and measured values of soil water content ranged from 0.02 to 0.03 cm3·cm-3 and 1.5% to 2.3%, respectively. The RMSE and MRE of leaf area index and plant height were 0.3-0.6, 4.2-4.5 cm, and 5.0%-8.9%, 5.2%-6.8%, respectively. The MRE of peanut yield and water consumption were both within 5%, indicating that the model was suitable for simulating soil moisture and peanut growth in the northwest Liaoning Province. With the increases of irrigation amounts, peanut yield increased and water use efficiency decreased. Considering both peanut yield and WUE, we recommend that the optimal mulched drip irrigation amounts for peanut in the semi-arid areas of Northwestern Liaoning in test year (normal year) was 80-97 mm.
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Affiliation(s)
- Zhen-Yu Huang
- College of Water Conservancy, Shen-yang Agricultural University, Shenyang 110866, China
| | - Gui-Min Xia
- College of Water Conservancy, Shen-yang Agricultural University, Shenyang 110866, China
| | - Jia-Qi Hu
- College of Water Conservancy, Shen-yang Agricultural University, Shenyang 110866, China
| | - Tao-Tao Chen
- College of Water Conservancy, Shen-yang Agricultural University, Shenyang 110866, China
| | - Jun-Lin Zheng
- College of Water Conservancy, Shen-yang Agricultural University, Shenyang 110866, China
| | - Qi Wu
- College of Water Conservancy, Shen-yang Agricultural University, Shenyang 110866, China
| | - Dao-Cai Chi
- College of Water Conservancy, Shen-yang Agricultural University, Shenyang 110866, China
| | - Feng Wang
- Bureau of Agency Service, Ministry of Water Resources, Beijing 100053, China
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Chen ZH, Liu Z, Hu JQ, Cai QW, Li XY, Wang W, Faraj Y, Ju XJ, Xie R, Chu LY. β-Cyclodextrin-modified graphene oxide membranes with large adsorption capacity and high flux for efficient removal of bisphenol A from water. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2019.117510] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Cai QW, Ju XJ, Zhang SY, Chen ZH, Hu JQ, Zhang LP, Xie R, Wang W, Liu Z, Chu LY. Controllable Fabrication of Functional Microhelices with Droplet Microfluidics. ACS Appl Mater Interfaces 2019; 11:46241-46250. [PMID: 31739661 DOI: 10.1021/acsami.9b17763] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Microhelices with unique three-dimensional (3D) helical structures have attracted great attention due to applications in various fields, especially magnetic microhelices can be applied as microrobots for removal of clogging substance in microchannels, cargo transport, cell manipulation, and so on. Here, a facile and flexible strategy is developed to controllably fabricate microhelices with droplet microfluidics. On-flow fabrication of microhelices is simply achieved by generating monodisperse droplets first, transforming the spherical droplets into helical templates subsequently due to the liquid rope coiling effect, followed by polymerizing monomers in the templates via on-line UV irradiation and then degrading the shells of helical fibers. Benefitting from the flexible controllability of microfluidics, the morphologies of microhelices can be precisely controlled by adjusting the flow rates of fluids and the structures of microfluidic devices. Functional microhelices can be easily prepared by introducing functional components or elements into inner fluids. By introducing magnetic nanoparticles into inner fluids, magnetic microhelices are easily fabricated as microrobots that featured with magnetic-field-driven corkscrew-like motion for efficient cargo transport and removal of clogging substance in microchannels. This novel microfabrication method allows a precise morphological control and easy functionalization of microhelices, providing a flexible and versatile strategy for fabricating designer functional microhelices for diverse applications.
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Hu JQ, Liu Z, Deng K, Chen ZH, Cai QW, Faraj Y, Xie R, Ju XJ, Wang W, Chu LY. A novel membrane with ion-recognizable copolymers in graphene-based nanochannels for facilitated transport of potassium ions. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.117345] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Zhang YW, Zhang J, Hu JQ, Wen CL, Dai SY, Yang DF, Li LF, Wu QB. Neuraxial adjuvants for prevention of perioperative shivering during cesarean section: A network meta-analysis following the PRISMA guidelines. World J Clin Cases 2019; 7:2287-2301. [PMID: 31531322 PMCID: PMC6718794 DOI: 10.12998/wjcc.v7.i16.2287] [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] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 06/25/2019] [Accepted: 07/20/2019] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Perioperative shivering is clinically common during cesarean sections under neuraxial anesthesia, and several neuraxial adjuvants are reported to have preventive effects on it. However, the results of current studies are controversial and the effects of these neuraxial adjuvants remain unclear.
AIM To evaluate the effects of neuraxial adjuvants on perioperative shivering during cesarean sections, thus providing an optimal choice for clinical application.
METHODS A systematic review and network meta-analysis were conducted following the PRISMA (Preferred Reported Items for Systematic Review and Meta-analysis) guidelines. Analyses were performed using Review Manager 5.3 and Stata 14.0. We searched PubMed, EMBASE, Web of Science, and Cochrane Central databases for eligible clinical trials assessing the effects of neuraxial adjuvants on perioperative shivering and other adverse events during cesarean sections. Perioperative shivering was defined as the primary endpoint, and nausea, vomiting, pruritus, hypotension, and bradycardia were the secondary outcomes.
RESULTS Twenty-six studies using 9 neuraxial adjuvants for obstetric anesthesia during caesarean sections were included. The results showed that, compared with placebo, pethidine, fentanyl, dexmedetomidine, and sufentanil significantly reduced the incidence of perioperative shivering. Among the four neuraxial adjuvants, pethidine was the most effective one for shivering prevention (OR = 0.15, 95%CI: 0.07-0.35, surface under the cumulative ranking curve 83.9), but with a high incidence of nausea (OR = 3.15, 95%CI: 1.04-9.57) and vomiting (OR = 3.71, 95%CI: 1.81-7.58). The efficacy of fentanyl for shivering prevention was slightly inferior to pethidine (OR = 0.20, 95%CI: 0.09-0.43), however, it significantly decreased the incidence of nausea (OR = 0.34, 95%CI: 0.15-0.79) and vomiting (OR = 0.25, 95%CI: 0.11-0.56). In addition, compared with sufentanil, fentanyl showed no impact on haemodynamic stability and the incidence of pruritus.
CONCLUSION Pethidine, fentanyl, dexmedetomidine, and sufentanil appear to be effective for preventing perioperative shivering in puerperae undergoing cesarean sections. Considering the risk-benefit profiles of the included neuraxial adjuvants, fentanyl is probably the optimal choice.
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Affiliation(s)
- Yi-Wei Zhang
- State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau 999078, China
- Faculty of Chinese Medicine, Macau University of Science and Technology, Macau 999078, China
| | - Juan Zhang
- Department of Anesthesiology, First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou 310000, Zhejiang Province, China
| | - Jia-Qi Hu
- Department of Anesthesiology, First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou 310000, Zhejiang Province, China
- Department of Pain, Zhejiang Provincial People's Hospital, Hangzhou 310000, Zhejiang Province, China
| | - Chun-Lei Wen
- Department of Anesthesiology, First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou 310000, Zhejiang Province, China
| | - Shu-Yang Dai
- Department of Anesthesiology, Ruian People's Hospital, Wenzhou Medical University, Wenzhou 325000, Zhejiang Province, China
| | - Dan-Feng Yang
- Department of Anesthesiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310000, Zhejiang Province, China
| | - Li-Fang Li
- Faculty of Chinese Medicine, Macau University of Science and Technology, Macau 999078, China
| | - Qi-Biao Wu
- State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau 999078, China
- Faculty of Chinese Medicine, Macau University of Science and Technology, Macau 999078, China
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Hu JQ, Shi XH, Wu SQ, Ho KM, Zhu ZZ. Dependence of Electronic and Optical Properties of MoS 2 Multilayers on the Interlayer Coupling and Van Hove Singularity. Nanoscale Res Lett 2019; 14:288. [PMID: 31428881 PMCID: PMC6702492 DOI: 10.1186/s11671-019-3105-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Accepted: 07/25/2019] [Indexed: 06/10/2023]
Abstract
In this paper, the structural, electronic, and optical properties of MoS2 multilayers are investigated by employing the first-principles method. Up to six-layers of MoS2 have been comparatively studied. The covalency and ionicity in the MoS2 monolayer are shown to be stronger than those in the bulk. As the layer number is increased to two or above two, band splitting is significant due to the interlayer coupling. We found that long plateaus emerged in the imaginary parts of the dielectric function [Formula: see text] and the joint density of states (JDOS) of MoS2 multilayers, due to the Van Hove singularities in a two-dimensional material. One, two and three small steps appear at the thresholds of both the long plateau of [Formula: see text] and JDOS, for monolayer, bilayer, and trilayer, respectively. As the number of layers further increased, the number of small steps increases and the width of the small steps decreases accordingly. Due to interlayer coupling, the longest plateau and shortest plateau of JDOS are from the monolayer and bulk, respectively.
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Affiliation(s)
- Jia-Qi Hu
- Department of Physics, OSED, Key Laboratory of Low Dimensional Condensed Matter Physics (Department of Education of Fujian Province), Jiujiang Research Institute, Xiamen University, Xiamen, 361005, China
| | - Xiao-Hong Shi
- Department of Physics, OSED, Key Laboratory of Low Dimensional Condensed Matter Physics (Department of Education of Fujian Province), Jiujiang Research Institute, Xiamen University, Xiamen, 361005, China
| | - Shun-Qing Wu
- Department of Physics, OSED, Key Laboratory of Low Dimensional Condensed Matter Physics (Department of Education of Fujian Province), Jiujiang Research Institute, Xiamen University, Xiamen, 361005, China.
| | - Kai-Ming Ho
- International Center for Quantum Design of Functional Materials (ICQD), University of Science and Technology of China, Hefei, 230026, Anhui, China
- Department of Physics and Astronomy, Iowa State University, Ames, IA, 50011, USA
| | - Zi-Zhong Zhu
- Department of Physics, OSED, Key Laboratory of Low Dimensional Condensed Matter Physics (Department of Education of Fujian Province), Jiujiang Research Institute, Xiamen University, Xiamen, 361005, China.
- Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, Xiamen, China.
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Li XY, Xie R, Zhang C, Chen ZH, Hu JQ, Ju XJ, Wang W, Liu Z, Chu LY. Effects of hydrophilicity of blended submicrogels on the microstructure and performance of thermo-responsive membranes. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.04.057] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Hu JQ, Qi Q, Zhao YL, Tian XM, Lu H, Gai Y, Jiang XN. Unraveling the impact of Pto4CL1 regulation on the cell wall components and wood properties of perennial transgenic Populus tomentosa. Plant Physiol Biochem 2019; 139:672-680. [PMID: 31054469 DOI: 10.1016/j.plaphy.2019.03.035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 03/22/2019] [Accepted: 03/25/2019] [Indexed: 06/09/2023]
Abstract
Cell wall components and structure impact the physical and mechanical properties of plants, thereby affecting wood applications. Lignin is the most abundant biopolymer after cellulose in the wood cell wall and can be modified by certain lignin biosynthesis enzymes. 4-Coumarate: coenzyme A ligase(4CL) is an important lignin biosynthesis enzyme. To demonstrate the impact of the regulation of Pto4CL1 from poplar on wood properties, we analyzed the composition and anatomy of 5-year-old Pto4CL1-modified poplar cell walls, assessing the density, strength, volume shrinkage, and impact toughness of the transgenic trees. These results showed that the up-regulation of Pto4CL1 increased the lignin content to 46.65% from 33.11% in the control plants, while hydrophilic polysaccharides such as cellulose, hemi-cellulose, and pectin decreased. In contrast, the down-regulation of Pto4CL1 resulted in a reduction in lignin content to 27.39%, and the content of cellulose and hemi-cellulose showed compensatory variation. Raman spectroscopy showed that the change in lignin in the transgenic events was embodied in the deposition and concentration of lignin in the secondary cell wall. Moreover, the increased lignin content caused significantly increased wood strength and slightly increased wood density. In contrast, a reduction in lignin content resulted in a significant decrease in wood strength and a slight decrease in wood density. However, the Pto4CL1-modified trees had similar stiffness to the control group. We also found a significant decrease in volume shrinkage and increase in impact toughness in the low-lignin events. These results indicate that Pto4CL1 regulation alters the chemical composition of plant cell walls and these changes affect the physical and mechanical properties of the wood.
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Affiliation(s)
- Jia-Qi Hu
- College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, PR China
| | - Qi Qi
- College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, PR China
| | - Yan-Ling Zhao
- College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, PR China; Department of Chemical Engineering, Hua Qiao University, Xiamen, 361021, Fujian, PR China
| | - Xiao-Ming Tian
- College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, PR China
| | - Hai Lu
- College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, PR China
| | - Ying Gai
- College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, PR China; The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, National Engineering Laboratory for Tree Breeding, Beijing, 100083, PR China.
| | - Xiang-Ning Jiang
- College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, PR China; The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, National Engineering Laboratory for Tree Breeding, Beijing, 100083, PR China.
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Luo JY, Hu JQ, Chen Z, Guo ZJ, Sun BQ. [The correlation study between PM2.5 and the life quality in patients with allergic rhinitis]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 32:295-297. [PMID: 29798509 DOI: 10.13201/j.issn.1001-1781.2018.04.013] [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: 09/27/2017] [Indexed: 11/12/2022]
Abstract
Objective:This study aims to research the relationship betweeen allergic rhinitis (AR) patients life quality and the PM2.5 concentration. Method:Fifty-two patients with clinically diagnosed AR were enrolled in this study. Patients were asked to fill in the questionnaire about the quality of life of rhinoconjunctivitis (RQLQ) continuously. The concentrations of PM2.5 in their living environment were continuously tested for one month (31 days) and SPSS 19.0 software was used to analyze data through descriptive statistical method, Spearman correlation analysis and nonparametric test. P<0.05 was considered statistically significant. Result:There were significant association between PM2.5 and nasal symptoms (r=0.121, P<0.01), daily activities (r=0.146, P<0.01) and practical problems (r=0.099, P<0.01). However, sleep (r=0.059, P=0.051), non-hay fever symptoms (r=0.042, P=0.169), emotion (r=0.042, P=0.168), eye symptoms (r=0.087, P=0.274) and PM2.5 had no statistical significance. AR patients have faced notable differences in genders. The scores of activities, non hay fever symptoms and emotions also showed the difference. Female AR patients have demonstrated the statistical significance with the concentration of PM2.5 among the activity, non hay fever symptoms, practical problems, nasal symptoms and emotions. While the male AR patients existed a statistical significance in the concentration of PM2.5 only between the activity and nasal symptoms. Conclusion:PM2.5 concentration is negatively associated with the life quality of AR patients. The higher concentration of PM2.5, the lower AR patients quality of life they got.
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Affiliation(s)
- J Y Luo
- State Key Laboratory of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510182, China
| | - J Q Hu
- State Key Laboratory of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510182, China
| | - Z Chen
- State Key Laboratory of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510182, China
| | - Z J Guo
- State Key Laboratory of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510182, China
| | - B Q Sun
- State Key Laboratory of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510182, China
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Xi YH, Hu JQ, Liu Z, Xie R, Ju XJ, Wang W, Chu LY. Correction to "Graphene Oxide Membranes with Strong Stability in Aqueous Solutions and Controllable Lamellar Spacing". ACS Appl Mater Interfaces 2018; 10:21018-21020. [PMID: 29889495 DOI: 10.1021/acsami.8b08236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
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35
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Zhu XQ, Guo CF, Wen YG, Shang DW, Hu JQ, Deng SH, Tan Y, Qiu C. Elevated PT, APPT and PT/INR possibly associated with doxycycline and cefoperazone co-administration: A case report. J Clin Pharm Ther 2017; 43:141-144. [PMID: 28850701 DOI: 10.1111/jcpt.12600] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 06/26/2017] [Indexed: 01/04/2023]
Abstract
WHAT IS KNOWN AND OBJECTIVE Little is known regarding changes in blood coagulation parameters associated with tetracycline antibiotics. We report a possible case of elevated PT, APPT and PT/INR associated with doxycycline and cefoperazone co-administration. CASE SUMMARY An 83-year-old Chinese male inpatient with severe pneumonia, chronic renal insufficiency and malnutrition experienced elevated PT, APPT and PT/INR which occurred within a few days of doxycycline added to his cefoperazone treatment and returned to normal after removal of it. WHAT IS NEW AND CONCLUSION Very close monitoring of coagulation parameters might be advisable in those subjects when administering doxycycline and cefoperazone concomitantly.
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Affiliation(s)
- X Q Zhu
- Department of Pharmacy, The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China
| | - C F Guo
- Department of Neurology, The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China
| | - Y G Wen
- Department of Pharmacy, The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China
| | - D W Shang
- Department of Pharmacy, The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China
| | - J Q Hu
- Department of Pharmacy, The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China
| | - S H Deng
- Department of Pharmacy, The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China
| | - Y Tan
- Department of Neurology, The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China
| | - C Qiu
- Department of Pharmacy, The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China
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Wang MY, Liu AD, Zhou C, Hu JQ, Li H, Lan T, Xie JL, Ding WX, Liu WD, Yu CX. A novel approach to estimating the Doppler shift frequency from quadrature mixer output. Rev Sci Instrum 2017; 88:073503. [PMID: 28764541 DOI: 10.1063/1.4991018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Doppler backscattering systems (DBSs) have been widely used in magnetic confinement fusion devices to measure the density fluctuations and propagation velocity of turbulence. However, the received signals of a DBS usually include both zero-order reflection and backscattering components, which results in interference in calculating the Doppler shift frequency from the backscattering components. A novel method is introduced here for estimating the Doppler shift frequency by separating the zero-order reflection and backscattering components using the cross-phase spectrum between the I-signal and Q-signal from a quadrature mixer, based on the difference in symmetrical characteristics between the zero-order reflection and backscattering signal spectra. It is proven that this method is more effective than traditional approaches, such as multiple signal classification and fast Fourier transformation, for extracting Doppler shift information.
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Affiliation(s)
- M Y Wang
- CAS Key Laboratory of Geospace Environment, Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - A D Liu
- CAS Key Laboratory of Geospace Environment, Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - C Zhou
- CAS Key Laboratory of Geospace Environment, Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - J Q Hu
- CAS Key Laboratory of Geospace Environment, Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - H Li
- CAS Key Laboratory of Geospace Environment, Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - T Lan
- CAS Key Laboratory of Geospace Environment, Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - J L Xie
- CAS Key Laboratory of Geospace Environment, Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - W X Ding
- CAS Key Laboratory of Geospace Environment, Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - W D Liu
- CAS Key Laboratory of Geospace Environment, Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - C X Yu
- CAS Key Laboratory of Geospace Environment, Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
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Hu JQ, Zhou C, Liu AD, Wang MY, Doyle EJ, Peebles WA, Wang G, Zhang XH, Zhang J, Feng X, Ji JX, Li H, Lan T, Xie JL, Ding WX, Liu WD, Yu CX. An eight-channel Doppler backscattering system in the experimental advanced superconducting tokamak. Rev Sci Instrum 2017; 88:073504. [PMID: 28764527 DOI: 10.1063/1.4991855] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Doppler backscattering system can measure the perpendicular velocity and fluctuation amplitude of the density turbulence with intermediate wavenumber. An eight-channel Doppler backscattering system has been installed in the Experimental Advanced Superconducting Tokamak (EAST), which can probe eight different radial locations simultaneously by launching eight fixed frequencies (55, 57.5, 60, 62.5, 67.5, 70, 72.5, 75 GHz) into plasma. The quasi-optical system consists of circular corrugated waveguide transmission, a fixed parabolic mirror, and a rotatable parabolic mirror which are integrated with quasi-optics front-end of the profile reflectometer inside the vacuum vessel. The incidence angle can be chosen from 5° to 12°, and the wavenumber range is 2-15/cm with the wavenumber resolution Δk/k≤0.21. Ray tracing simulations are used to calculate the scattering locations and the perpendicular wavenumber. The dynamic range of this new eight-channel Doppler backscattering system can be as large as 40 dB in the EAST. In this article, the hardware design, the ray tracing, and the preliminary experimental results in the EAST will be presented.
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Affiliation(s)
- J Q Hu
- KTX Laboratory and Department of Modern Physics, University of Science and Technology of China, Anhui Hefei 230026, China
| | - C Zhou
- KTX Laboratory and Department of Modern Physics, University of Science and Technology of China, Anhui Hefei 230026, China
| | - A D Liu
- KTX Laboratory and Department of Modern Physics, University of Science and Technology of China, Anhui Hefei 230026, China
| | - M Y Wang
- KTX Laboratory and Department of Modern Physics, University of Science and Technology of China, Anhui Hefei 230026, China
| | - E J Doyle
- Physics and Astronomy Department and PSTI, University of California, Los Angeles, California 90095, USA
| | - W A Peebles
- Physics and Astronomy Department and PSTI, University of California, Los Angeles, California 90095, USA
| | - G Wang
- Physics and Astronomy Department and PSTI, University of California, Los Angeles, California 90095, USA
| | - X H Zhang
- School of Computer and Information, Hefei University of Technology, Hefei, Anhui 230026, China
| | - J Zhang
- KTX Laboratory and Department of Modern Physics, University of Science and Technology of China, Anhui Hefei 230026, China
| | - X Feng
- KTX Laboratory and Department of Modern Physics, University of Science and Technology of China, Anhui Hefei 230026, China
| | - J X Ji
- KTX Laboratory and Department of Modern Physics, University of Science and Technology of China, Anhui Hefei 230026, China
| | - H Li
- KTX Laboratory and Department of Modern Physics, University of Science and Technology of China, Anhui Hefei 230026, China
| | - T Lan
- KTX Laboratory and Department of Modern Physics, University of Science and Technology of China, Anhui Hefei 230026, China
| | - J L Xie
- KTX Laboratory and Department of Modern Physics, University of Science and Technology of China, Anhui Hefei 230026, China
| | - W X Ding
- KTX Laboratory and Department of Modern Physics, University of Science and Technology of China, Anhui Hefei 230026, China
| | - W D Liu
- KTX Laboratory and Department of Modern Physics, University of Science and Technology of China, Anhui Hefei 230026, China
| | - C X Yu
- KTX Laboratory and Department of Modern Physics, University of Science and Technology of China, Anhui Hefei 230026, China
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Sun GH, Qu N, Hu JQ, Shi RL, Zhang TT, Wen D, Wang YL, Wang Y, Zhu YX, Ji QH. [Risk for metastasis of lymph node between sternocleidomastoid and sternohyoid muscle in papillary thyroid cancer]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 52:253-258. [PMID: 28441800 DOI: 10.3760/cma.j.issn.1673-0860.2017.04.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the risk factors for metastasis of lymph nodes between sternocleidomastoid and sternohyoid muscle (LNSS) in papillary thyroid cancer (PTC). Methods: Papillary thyroid cancer patients with clinically positive lateral lymph node metastasis (cN1) who underwent surgery including LNSS dissection between May 1, 2013 and May 31, 2016 at the Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center were retrospectively studied. Logistic regression analysis was performed to evaluate possible clinicopathological factors related to LNSS metastasis. Results: In 85 patients, 54 patients (63.5%) showed LNSS in their surgical specimen, and 20 patients (23.5%) had pathologically positive LNSS metastasis. Patients with LNSS showed preoperatively higher levels of serum thyroid stimulating hormone (TSH) and thyroid peroxidase antibody (TPO-Ab) compared to patients only with fibrofatty tissues between sternocleidomastoid and sternohyoid muscle (P<0.05), and they also displayed a higher proportion of multifocality in ipsilateral thyroid lobe (P<0.05). Multi-factor analysis indicated that LNSS metastasis was correlated with original tumor size (OR=1.819, 95%CI 1.050-3.850, P=0.002) and Level Ⅳ lymph node metastasis (OR=2.190, 95%CI 1.132-2.334, P=0.005). Furthermore, the number of positive LNSS was tightly correlated to that of level Ⅳ lymph node metastasis(P<0.05). Conclusion: LNSS metastasis is occult but not quite rare in PTC. Patients with extensive lymph node metastasis in Level Ⅳhave a higher risk for metastasis of LNSS.
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Affiliation(s)
- G H Sun
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - N Qu
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - J Q Hu
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - R L Shi
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - T T Zhang
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - D Wen
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Y L Wang
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Y Wang
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Y X Zhu
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Q H Ji
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
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Chen HZ, Hu JQ, Wang S, Li B, Wang XY, Wang YL, Dai L, Ma RM. Imaging the dark emission of spasers. Sci Adv 2017; 3:e1601962. [PMID: 28439539 PMCID: PMC5392029 DOI: 10.1126/sciadv.1601962] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Accepted: 02/16/2017] [Indexed: 05/30/2023]
Abstract
Spasers are a new class of laser devices with cavity sizes free from optical diffraction limit. They are an emergent tool for various applications, including biochemical sensing, superresolution imaging, and on-chip optical communication. According to its original definition, a spaser is a coherent surface plasmon amplifier that does not necessarily generate a radiative photon output. However, to date, spasers have only been studied with scattered photons, and their intrinsic surface plasmon emission is a "dark" emission that is yet to be revealed because of its evanescent nature. We directly image the surface plasmon emission of spasers in spatial, momentum, and frequency spaces simultaneously. We demonstrate a nanowire spaser with a coupling efficiency to plasmonic modes of 74%. This coupling efficiency can approach 100% in theory when the diameter of the nanowire becomes smaller than 50 nm. Our results provide clear evidence of the surface plasmon amplifier nature of spasers and will pave the way for their various applications.
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Affiliation(s)
- Hua-Zhou Chen
- State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, Peking University, Beijing 100871, China
| | - Jia-Qi Hu
- State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, Peking University, Beijing 100871, China
| | - Suo Wang
- State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, Peking University, Beijing 100871, China
| | - Bo Li
- State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, Peking University, Beijing 100871, China
| | - Xing-Yuan Wang
- State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, Peking University, Beijing 100871, China
| | - Yi-Lun Wang
- State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, Peking University, Beijing 100871, China
| | - Lun Dai
- State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, Peking University, Beijing 100871, China
- Collaborative Innovation Center of Quantum Matter, Beijing, China
| | - Ren-Min Ma
- State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, Peking University, Beijing 100871, China
- Collaborative Innovation Center of Quantum Matter, Beijing, China
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40
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Zhao QH, Shi H, Hu JQ, Wang D, Fang G, Zhang YG, Wang YQ, Yang J. Ultrasound diagnosis of fetal thanatophoric skeletal dysplasia: Three cases report and a brief review. ACTA ACUST UNITED AC 2017; 37:148-152. [PMID: 28224438 DOI: 10.1007/s11596-017-1708-x] [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: 09/14/2016] [Revised: 12/20/2016] [Indexed: 11/25/2022]
Abstract
Congenital skeletal deformity of fetus varies and may be attributed to a range of reasons. Congenital skeletal deformity seriously affects body function or even leads to neonatal death directly. The disease brings great pain to victim and their family. We reviewed the fetal prenatal ultrasonic data conducted during period from Jan. 2013 to June 2016, and there were 84 fetuses with skeletal abnormalities among 12 000 cases, and 3 fetuses with thanatophoric dysplasia. Our report described and reviewed three common types of thanatophoric dysplasia, aiming to explore the value of standardized prenatal ultrasonic diagnosis of fetal abnormalities in the skeletal system.
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Affiliation(s)
- Qing-Hong Zhao
- Renmin Hospital of Wuhan University, Wuhan, 430070, China
| | - Hua Shi
- Renmin Hospital of Wuhan University, Wuhan, 430070, China
| | - Jia-Qi Hu
- Renmin Hospital of Wuhan University, Wuhan, 430070, China
| | - Dan Wang
- Renmin Hospital of Wuhan University, Wuhan, 430070, China
| | - Gui Fang
- Renmin Hospital of Wuhan University, Wuhan, 430070, China
| | - Yu-Guo Zhang
- Renmin Hospital of Wuhan University, Wuhan, 430070, China
| | - Yan-Qing Wang
- Renmin Hospital of Wuhan University, Wuhan, 430070, China
| | - Jing Yang
- Renmin Hospital of Wuhan University, Wuhan, 430070, China.
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Yu HR, Hu JQ, Liu Z, Ju XJ, Xie R, Wang W, Chu LY. Ion-recognizable hydrogels for efficient removal of cesium ions from aqueous environment. J Hazard Mater 2017; 323:632-640. [PMID: 27776870 DOI: 10.1016/j.jhazmat.2016.10.024] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 10/09/2016] [Accepted: 10/12/2016] [Indexed: 06/06/2023]
Abstract
At present, selective and efficient removal of cesium ions (Cs+) from nuclear waste is of significant importance but still challenging. In this study, an easy-to-get and low-cost hydrogel adsorbent has been developed for effective adsorption and removal of Cs+ from aqueous environment. The novel Cs+-recognizable poly(acrylic acid-co-benzo-18-crown-6-acrylamide) (poly(AAc-co-B18C6Am)) hydrogel is specifically designed with a synergistic effect, in which the AAc units are designed to attract Cs+ via electrostatic attraction and the B18C6Am units are designed to capture the attracted Cs+ by forming stable 2:1 "sandwich" complexes. The poly(AAc-co-B18C6Am) hydrogels are simply synthesized by thermally initiated free-radical copolymerization and display excellent Cs+ adsorption from commonly coexisting metal ions. Important parameters affecting the adsorption are investigated comprehensively, and the adsorption kinetics and adsorption isotherms are also discussed systematically. The poly(AAc-co-B18C6Am) hydrogels exhibit rapid Cs+ adsorption within 30min and the adsorption process is governed by the pseudo-second order model. Adsorption isotherm results demonstrate that the equilibrium data are well fitted by the Langmuir isotherm model, indicating that the Cs+ adsorption is probably a monolayer adsorption process. Such Cs+-recognizable hydrogel materials based on the host-guest complexation are promising as efficient and feasible candidates for adsorption and removal of radioactive Cs+ from nuclear contaminants.
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Affiliation(s)
- Hai-Rong Yu
- School of Chemical Engineering, Sichuan University, No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan, 610065, PR China; College of Chemistry and Environment Protection Engineering, Southwest University for Nationalities, No. 16, Southern 4 Section, Yihuan Road, Chengdu, Sichuan, 610041, PR China
| | - Jia-Qi Hu
- School of Chemical Engineering, Sichuan University, No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan, 610065, PR China
| | - Zhuang Liu
- School of Chemical Engineering, Sichuan University, No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan, 610065, PR China.
| | - Xiao-Jie Ju
- School of Chemical Engineering, Sichuan University, No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan, 610065, PR China; State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, PR China
| | - Rui Xie
- School of Chemical Engineering, Sichuan University, No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan, 610065, PR China; State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, PR China
| | - Wei Wang
- School of Chemical Engineering, Sichuan University, No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan, 610065, PR China; State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, PR China
| | - Liang-Yin Chu
- School of Chemical Engineering, Sichuan University, No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan, 610065, PR China; State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, PR China; Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing, Jiangsu 211816, PR China.
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Xi YH, Hu JQ, Liu Z, Xie R, Ju XJ, Wang W, Chu LY. Graphene Oxide Membranes with Strong Stability in Aqueous Solutions and Controllable Lamellar Spacing. ACS Appl Mater Interfaces 2016; 8:15557-66. [PMID: 27214685 DOI: 10.1021/acsami.6b00928] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Graphene oxide (GO) membranes become emerging efficient filters for molecular or ionic separation due to their well-defined two-dimensional nanochannels formed by closely spaced GO sheets and tunable physicochemical properties. The stability of GO membranes in aqueous solutions is a prerequisite for their applications. Here we show a novel and easy strategy for fabricating GO membranes with strong stability in aqueous solutions and controllable lamellar spacing by simply doping with partially reduced graphene oxide (prGO) sheets. With our prGO-doping strategy, the interlayer stabilizing force in GO membranes is enhanced due to the weakened repulsive hydration and enhanced π-π attraction between GO sheets; as a result, the fabricated GO membranes are featured with controllable lamellar spacing and extraordinary stability in water or even strong acid and base solutions as well as strong mechanical properties, which will expand the application scope of GO membranes and provide ever better performances in their applications with aqueous solution environments.
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Affiliation(s)
- Yue-Heng Xi
- School of Chemical Engineering, Sichuan University , No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan 610065, People's Republic of China
| | - Jia-Qi Hu
- School of Chemical Engineering, Sichuan University , No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan 610065, People's Republic of China
| | - Zhuang Liu
- School of Chemical Engineering, Sichuan University , No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan 610065, People's Republic of China
| | - Rui Xie
- School of Chemical Engineering, Sichuan University , No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan 610065, People's Republic of China
| | - Xiao-Jie Ju
- School of Chemical Engineering, Sichuan University , No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan 610065, People's Republic of China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu, Sichuan 610065, People's Republic of China
| | - Wei Wang
- School of Chemical Engineering, Sichuan University , No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan 610065, People's Republic of China
| | - Liang-Yin Chu
- School of Chemical Engineering, Sichuan University , No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan 610065, People's Republic of China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu, Sichuan 610065, People's Republic of China
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) , Nanjing, Jiangsu 211816, People's Republic of China
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Zhang XH, Liu AD, Zhou C, Hu JQ, Wang MY, Yu CX, Liu WD, Li H, Lan T, Xie JL. Influence of lithium coating on the optics of Doppler backscatter system. Rev Sci Instrum 2015; 86:103503. [PMID: 26520951 DOI: 10.1063/1.4932185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This paper presents the first investigation of the effect of lithium coating on the optics of Doppler backscattering. A liquid lithium limiter has been applied in the Experimental Advanced Superconducting Tokamak (EAST), and a Doppler backscattering has been installed in the EAST. A parabolic mirror and a flat mirror located in the vacuum vessel are polluted by lithium. An identical optical system of the Doppler backscattering is set up in laboratory. The power distributions of the emission beam after the two mirrors with and without lithium coating (cleaned before and after), are measured at three different distances under four incident frequencies. The results demonstrate that the influence of the lithium coating on the power distributions are very slight, and the Doppler backscattering can work normally under the dosage of lithium during the 2014 EAST campaign.
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Affiliation(s)
- X H Zhang
- Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - A D Liu
- Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - C Zhou
- Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - J Q Hu
- Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - M Y Wang
- Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - C X Yu
- Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - W D Liu
- Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - H Li
- Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - T Lan
- Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - J L Xie
- Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
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Yu HR, Hu JQ, Lu XH, Ju XJ, Liu Z, Xie R, Wang W, Chu LY. Insights into the Effects of 2:1 “Sandwich-Type” Crown-Ether/Metal-Ion Complexes in Responsive Host–Guest Systems. J Phys Chem B 2015; 119:1696-705. [DOI: 10.1021/jp5079423] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hai-Rong Yu
- School
of Chemical Engineering, Sichuan University, Southern 1 Section, Yihuan Road, Chengdu, Sichuan 610065, China
| | - Jia-Qi Hu
- School
of Chemical Engineering, Sichuan University, Southern 1 Section, Yihuan Road, Chengdu, Sichuan 610065, China
| | - Xiao-Hua Lu
- School
of Chemical Engineering, Nanjing Tech University, No. 5 Xin Mofan Road, Nanjing, Jiangsu 211816, China
| | - Xiao-Jie Ju
- School
of Chemical Engineering, Sichuan University, Southern 1 Section, Yihuan Road, Chengdu, Sichuan 610065, China
| | - Zhuang Liu
- School
of Chemical Engineering, Sichuan University, Southern 1 Section, Yihuan Road, Chengdu, Sichuan 610065, China
| | - Rui Xie
- School
of Chemical Engineering, Sichuan University, Southern 1 Section, Yihuan Road, Chengdu, Sichuan 610065, China
| | - Wei Wang
- School
of Chemical Engineering, Sichuan University, Southern 1 Section, Yihuan Road, Chengdu, Sichuan 610065, China
| | - Liang-Yin Chu
- School
of Chemical Engineering, Sichuan University, Southern 1 Section, Yihuan Road, Chengdu, Sichuan 610065, China
- State
Key Laboratory of Polymer Materials Engineering, Sichuan University, Southern 1 Section, Yihuan Road, Chengdu, Sichuan 610065, China
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Zhou C, Liu AD, Zhang XH, Hu JQ, Wang MY, Li H, Lan T, Xie JL, Sun X, Ding WX, Liu WD, Yu CX. Microwave Doppler reflectometer system in the Experimental Advanced Superconducting Tokamak. Rev Sci Instrum 2013; 84:103511. [PMID: 24182112 DOI: 10.1063/1.4825344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A Doppler reflectometer system has recently been installed in the Experimental Advanced Superconducting (EAST) Tokamak. It includes two separated systems, one for Q-band (33-50 GHz) and the other for V-band (50-75 GHz). The optical system consists of a flat mirror and a parabolic mirror which are optimized to improve the spectral resolution. A synthesizer is used as the source and a 20 MHz single band frequency modulator is used to get a differential frequency for heterodyne detection. Ray tracing simulations are used to calculate the scattering location and the perpendicular wave number. In EAST last experimental campaign, the Doppler shifted signals have been obtained and the radial profiles of the perpendicular propagation velocity during L-mode and H-mode are calculated.
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Affiliation(s)
- C Zhou
- Department of Modern Physics, CAS Key Laboratory of Geospace Environment, University of Science and Technology of China, Hefei, Anhui 230026, China
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Hou XH, Li DJ, Su H, Hu JQ, Li N, Li SJ. Molecular cloning, expression, and imprinting status of maternally expressed gene 8 (Meg8) in dairy cattle. Genetika 2011; 47:1120-1125. [PMID: 21954621] [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: 05/31/2023]
Abstract
At present, small number imprinted genes have been reported in cattle compare to human and mouse. Maternally expressed gene 8 (Meg8), a non-coding gene, have been identified maternally expressed in mouse and sheep, but its sequences and imprinting status have not been established in cattle. In this study, the full-length of cattle Meg8cDNA sequence was obtained by reverse transcript polymerase chain reaction (RT-PCR) and rapid amplification of cDNA ends (RACE) method, which has a high homology in exons sequences with the corresponding region of sheep Meg8. The isolation of cDNA sequence showed the presence of multiple splice variants in cattle Meg8 gene. The Meg8 was found to be expressed in all adult examined tissues, including heart, liver, spleen, lung, kidney, brain, subcutaneous fat and skeletal muscle. A single nucleotide polymorphism (SNP) was identified in exon 6 by Single-Strand Conformation Polymorphism (SSCP), and used to distinguish between monoallelic and biallelic expression in cattle tissues. The expression analysis of Meg8 in a heterozygous cattle showed that only one parental allele was expressed in all examined tissues, suggesting that Meg8 is imprinted in cattle.
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Affiliation(s)
- X H Hou
- Department of Biochemistry and Molecular Biology, College of Life Science, Hebei Agriculture University, Baoding 071001, China
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Hu JQ, Li YF, Guo JQ, Shen HG, Zhang DY, Zhou JY. Production and characterization of monoclonal antibodies to (poly100)S1 protein of avian infectious bronchitis virus. Zoonoses Public Health 2007; 54:69-77. [PMID: 17348910 DOI: 10.1111/j.1863-2378.2007.01030.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Fragments within S1 genes ((poly100)S1) of infectious bronchitis virus (IBV) strains ZJ971, M41 and SC021202 (SC) were subcloned into a prokaryotic expression vector and expressed in Escherichia coli. Monoclonal antibodies (mAbs) against the recombinant (poly100)S1 proteins were produced, characterized and used to analyse epitopes on the S1 subunit of IBV. Nine mAbs raising from the three (poly100)S1 proteins recognized five different epitopes of the S1 subunit, designated as S1-A, B, C, D and E. Epitopes S1-C and S1-D are common for the three IBV strains, while S1-A and S1-B exist on ZJ971 and M41 strains, and S1-E was a strain-specific epitope for SC strain. Immunocytochemistry indicated that all the mAbs to the (poly100)S1 proteins can react with the homologous S1 glycoprotein expressed in Vero cells. Moreover neutralization test demonstrated that only mAbs 6E2, 4F9 and 6G4 had neutralization activity for the homologous IBV. These mAbs to (poly100)S1 protein were potential candidates for detecting and distinguishing IBV strains, and also used to examine antigenic variation of the S1 protein.
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Affiliation(s)
- J Q Hu
- Laboratory of Virology and Immunology, Institute of Preventive Veterinary Medicine, Zhejiang University, Hangzhou 310029, China
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Hu JQ, Deng B, Zhang WX, Tang KB, Qian YT. Synthesis and characterization of CdIn(2)S(4) nanorods by converting CdS nanorods via the hydrothermal route. Inorg Chem 2001; 40:3130-3. [PMID: 11399183 DOI: 10.1021/ic001202z] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The ternary semiconductor CdIn(2)S(4) nanorods were synthesized by a method based on CdS nanorods via the hydrothermal route, in which CdS nanorods were converted by reaction with InCl(3) and thiourea in aqueous solution. Transmission electron microscopy (TEM) images revealed that the typical sizes of the CdIn(2)S(4) nanorods were 10-30 nm in diameter and 200-1000 nm in length. X-ray photoelectron spectra (XPS) analysis of the surface stoichiometry (CdIn(2.03)S(4.15)) and room-temperature Raman spectrum (RS) were recorded. The influences of reaction temperature, time, and sulfur sources on the formation for CdIn(2)S(4) nanorods were investigated. A possible formation mechanism of the CdIn(2)S(4) nanorods was also proposed.
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Affiliation(s)
- J Q Hu
- Structure Research Laboratory and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.
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Shi WD, Hu JQ, Wang KB. [Medicolegal appraisals of 22 cases of ocular penetration]. Fa Yi Xue Za Zhi 1999; 15:153, 155-5, 190. [PMID: 12536448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
22 cases of ocular penetration injury were analyzed and a clinical criteria of the injury's degree was proposed. The reasons causing ocular penetration and the characteristics of injuries were discussed.
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Affiliation(s)
- W D Shi
- Qingdao Intermediate People's Court, Qingdao, Shandong 266071, P. R. China
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Hu JQ, Guan YH, Zhao LZ, Xie SX, Guo Z, Liang ZH. Delayed radiation encephalopathy after radiotherapy for nasopharyngeal cancer: a CT study of 45 cases. J Comput Assist Tomogr 1991; 15:181-7. [PMID: 2002093 DOI: 10.1097/00004728-199103000-00001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The CT features of 45 cases of delayed radiation encephalopathy (including radiation necrosis) following radiotherapy for nasopharyngeal carcinoma are reported. The brain lesions were uni- or bilateral and involved mainly the white matter and subsequently the gray matter of the lower portion of the brain included within the portals of irradiation and its vicinity. The lesions were edematous and hypodense on CT and showed postcontrast enhancement in 50% of the cases. Within the period of follow-up (1-5 years), the lesions showed remissions and exacerbations and in some cases stabilized. In addition, there was progressive cerebral atrophy, manifesting itself mainly as dilatation of the temporal horns, the neighboring cisterns, and sylvian fissures. In some cases that were followed for a long time, the cerebral lesions showed either foci of calcification or encephalomalacia and/or porencephaly.
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Affiliation(s)
- J Q Hu
- Department of Radiology, Guangdong Provincial Hospital, Guangzhou, People's Republic of China
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