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Chen J, Zhang RX, Xie M, Ding QJ, Li J. [Effect of plasminogen activator urokinase receptor gene on the activation and apoptosis of neutrophil]. Zhonghua Yi Xue Za Zhi 2024; 104:877-882. [PMID: 38462365 DOI: 10.3760/cma.j.cn112137-20230917-00481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
Objective: To investigate the effect of plasminogen activator urokinase receptor (PLAUR) gene on neutrophil activation and apoptosis in neutrophil-like cell model. Methods: Human acute myeloid leukemia cell line HL60 was cultured in vitro and induced to differentiate into neutrophil-like cells by all-trans retinoic acid (ATRA). Lentiviral vectors interfering with human PLAUR gene was constructed and transfected into neutrophil-like cells (siRNA group). The phosphate buffer saline (PBS) group (untransfected neutrophil-like cells) and normal blank control group (NC group) (neutrophil-like cells transfected with blank plasmid) were used as controls (n=3). After starvation culture and addition of interleukin-17 afterwards in these 3 groups, the expression of CD11b on the cell membrane was detected by flow cytometry, and the levels of myeloperoxide (MPO) and extracellular neutrophil traps (NETs) in the supernatant were detected by enzyme-linked immunosorbent assay (ELISA) to investigate the activation of neutrophil-like cells. The apoptosis was detected by flow cytometry with annexin V/propidium iodide (PI) double staining and the expressions of apoptosis-related proteins caspase-3, bax and bcl-2 were detected by Western blotting. Results: The expression of CD11b in siRNA group (32.37±8.17) was lower than that in PBS group (46.27±1.54) and NC group (53.07±8.14) (P<0.05) by flow cytometry. The levels of MPO and NETs (33.37±1.11, 57.69±3.03) in the supernatant of siRNA group were significantly lower than those in PBS group (41.64±2.20, 77.60±4.33) and NC group (40.84±5.11, 76.15±2.10) (P<0.05). Flow cytometry with annexin V/PI showed that the expression of apoptosis in siRNA group (20.42%±2.45%) was significantly higher than that in PBS group (11.91%±2.23%) and NC group (11.13%±2.56%) (P<0.05). The relative expression of caspase-3 protein and bax protein (0.84±0.05, 0.83±0.04) in siRNA group was significantly higher than that in PBS group (0.68±0.02, 0.63±0.08) and NC group (0.71±0.01, 0.66±0.10) (P<0.05), and the relative expression of anti-apoptosis protein bcl-2 decreased in siRNA group (0.38±0.02) than in PBS group (0.73±0.05) and NC group (0.69±0.06) (P<0.05). Conclusion: PLAUR promotes the activation of neutrophil-like cells and inhibits the apoptosis.
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Affiliation(s)
- J Chen
- Department of Rheumatology and Clinical Immunology, the Second Affliated Hospital of Kunming Medical University, Kunming 650101, China
| | - R X Zhang
- Department of Disease Control and Prevention, the First People's Hospital of Yunnan Province, Kunming 650101, China
| | - M Xie
- Department of Rheumatology and Clinical Immunology, the Second Affliated Hospital of Kunming Medical University, Kunming 650101, China
| | - Q J Ding
- Department of Rheumatology and Clinical Immunology, the Second Affliated Hospital of Kunming Medical University, Kunming 650101, China
| | - J Li
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Beijing 100730, China
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Zhang RX, Wen Y, Guo DD, Xu FR, Wang GM, Wang XR, Shi YW, Ding J, Jiang Q, Jiang WJ, Jonas JB, Bi HS. Author Correction: Intravitreal injection of fibrillin 2 (Fbn2) recombinant protein for therapy of retinopathy in a retina-specific Fbn2 knock-down mouse model. Sci Rep 2023; 13:19992. [PMID: 37968571 PMCID: PMC10651829 DOI: 10.1038/s41598-023-47227-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2023] Open
Affiliation(s)
- Rui Xue Zhang
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Ying Wen
- Affiliated Eye Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Da Dong Guo
- Shandong Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Therapy of Ocular Diseases, Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Therapy of Ocular Diseases in Universities of Shandong, Shandong Academy of Eye Disease Prevention and Therapy, Jinan, China
| | - Fu Ru Xu
- Affiliated Eye Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Gui Min Wang
- Affiliated Eye Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Xing Rong Wang
- Affiliated Eye Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yong Wei Shi
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Jie Ding
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Qian Jiang
- Affiliated Eye Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Wen Jun Jiang
- Shandong University of Traditional Chinese Medicine, Jinan, China.
- Affiliated Eye Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China.
- Shandong Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Therapy of Ocular Diseases, Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Therapy of Ocular Diseases in Universities of Shandong, Shandong Academy of Eye Disease Prevention and Therapy, Jinan, China.
| | - Jost B Jonas
- Department of Ophthalmology, Medical Faculty Mannheim of the Ruprecht-Karls-University Heidelberg, Mannheim, Germany.
| | - Hong Sheng Bi
- Affiliated Eye Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China.
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Guo Z, Ma X, Zhang RX, Yan H. Oxidative stress, epigenetic regulation and pathological processes of lens epithelial cells underlying diabetic cataract. Adv Ophthalmol Pract Res 2023; 3:180-186. [PMID: 38106550 PMCID: PMC10724013 DOI: 10.1016/j.aopr.2023.10.001] [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] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 09/11/2023] [Accepted: 10/04/2023] [Indexed: 12/19/2023]
Abstract
Background Cataract is a blinding disease worldwide. It is an age-related disease that mainly occurs in people over 65 years old. Cataract is also prevalent in patients with diabetes mellites (DM). The pathological mechanisms underlying diabetic cataract (DC) are more complex than that of age-related cataract. Studies have identified that polyol pathway, advanced glycation end products (AGEs) and oxidative stress are the primary pathogenesis of DC. In recent years, molecular-level regulations and pathological processes of lens epithelial cells (LECs) have been confirmed to play roles in the initiation and progression of DC. A comprehensive understanding and elucidation of how chronic hyperglycemia drives molecular-level regulations and cytopathological processes in the lens will shed lights on the prevention, delay and treatment of DC. Main text Excessive glucose in the lens enhances polyol pathway and AGEs formation. Polyol pathway causes imbalance in the ratio of NADPH/NADP+ and NADH/NAD+. Decrease in NADPH/NADP+ ratio compromises antioxidant enzymes, while increase in NADH/NAD+ ratio promotes reactive oxygen species (ROS) overproduction in mitochondria, resulting in oxidative stress. Oxidative stress in the lens causes oxidation of DNA, proteins and lipids, leading to abnormalities in their structure and functions. Glycation of proteins by AGEs decreases solubility of proteins. High glucose triggered epigenetic regulations directly or indirectly affect expressions of genes and proteins in LECs. Changes in autophagic activity, increases in fibrosis and apoptosis of LECs destroy the morphological structure and physiological functions of the lens epithelium, disrupting lens homeostasis. Conclusions In both diabetic animal models and diabetics, oxidative stress plays crucial roles in the formation of cataract. Epigenetic regulations, include lncRNA, circRNA, microRNA, methylation of RNA and DNA, histone acetylation and pathological processes, include autophagy, fibrosis and apoptosis of LECs also involved in DC.
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Affiliation(s)
- Zaoxia Guo
- Shaanxi Eye Hospital, Xi'an People's Hospital (Xi'an Fourth Hospital), Affiliated People's Hospital of Northwest University, Xi'an, Shaanxi, China
| | - Xiaopan Ma
- Shaanxi Eye Hospital, Xi'an People's Hospital (Xi'an Fourth Hospital), Affiliated People's Hospital of Northwest University, Xi'an, Shaanxi, China
| | - Rui Xue Zhang
- Xi'an Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Research, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - Hong Yan
- Shaanxi Eye Hospital, Xi'an People's Hospital (Xi'an Fourth Hospital), Affiliated People's Hospital of Northwest University, Xi'an, Shaanxi, China
- Xi'an Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Research, Northwestern Polytechnical University, Xi'an, Shaanxi, China
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Guo Z, Ma X, Chen X, Zhang RX, Yan H. Oxidative stress-induced temporal activation of ERK1/2 phosphorylates coreceptor of Wnt/β-catenin for myofibroblast formation in human lens epithelial cells. Mol Vis 2023; 29:206-216. [PMID: 38222447 PMCID: PMC10784218] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 10/15/2023] [Indexed: 01/16/2024] Open
Abstract
Purpose Posterior capsular opacification (PCO) is the most common complication postcataract surgery, and its underlying mechanisms involve epithelial-mesenchymal transition (EMT) of remnant lens epithelial cells (LECs) in response to drastic changes in stimuli in the intraocular environment, such as oxidative stress and growth factors. Wnt/β-catenin signaling is a major pathway mediating oxidative stress-induced EMT in LECs, but its interplay with other transduction pathways remains little known in the development of PCO. ERK1/2 signaling is the downstream component of a phosphorelay pathway in response to extracellular stimuli (e.g., reactive oxygen species), and its activation regulates multiple cellular processes, including proliferation and EMT. Thus, this study aimed to investigate how ERK1/2 signaling and Wnt/β-catenin pathway crosstalk in oxidative stress-induced EMT in LECs. Methods Hydrogen peroxide (H2O2) at 50 μM treatment for 48 h was used to establish a moderate oxidative stress-induced EMT model in LECs. ERK1/2 signaling was inhibited using MEK1/2 inhibitor U0126 at 20 μM. Western blotting was used to quantify protein expression of various biomarkers of EMT and phosphorylated components in ERK1/2 and Wnt/β-catenin signaling. LEC proliferation was determined using an EdU staining assay and expression of proliferating cellular nuclear antigen (PCNA). Subcellular localization of biomarker proteins was visualized with immunofluorescent staining. Results Under the moderate level of H2O2-induced EMT in LECs, ERK1/2 signaling was activated, as evidenced by a marked increase in the ratio of phosphorylated ERK1/2 to total ERK1/2 at early (i.e., 5-15 min) and late time points (i.e., 12 h); the canonical Wnt/β-catenin pathway was activated by H2O2 at 48 h. LECs exposed to H2O2 exhibited hyperproliferation and EMT; however, these were restored by inhibition of ERK1/2 signaling demonstrated by reduced DNA synthesis and PCNA expression for cellular proliferation and altered expression of various EMT protein markers, including E-cadherin, α-SMA, and vimentin. More importantly, inhibition of ERK1/2 signaling reduced β-catenin accumulation in the activated Wnt/β-catenin signaling cascade. Specifically, there was significant downregulation in the phosphorylation level of LRP6 at Ser 1490 and GSK-3β at Ser 9, the key coreceptor of Wnt and regulator of β-catenin, respectively. Conclusions ERK1/2 signaling plays a crucial role in the moderate level of oxidative stress-induced EMT in LECs. Pharmacologically blocking ERK1/2 signaling significantly inhibited LEC proliferation and EMT. Mechanistically, ERK1/2 signaling regulated Wnt/β-catenin cascade by phosphorylating Wnt coreceptor LRP6 at Ser 1490 in the plasma membrane. These results shed light on a potential molecular switch of ERK1/2 and Wnt/β-catenin crosstalk underlying the development of PCO.
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Affiliation(s)
- Zaoxia Guo
- Shaanxi Eye Hospital, Xi'an People’s Hospital (Xi'an Fourth Hospital), Affiliated People’s Hospital of Northwest University, Xi' an, Shaanxi, China
| | - Xiaopan Ma
- Xi’an Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Research, Northwestern Polytechnical University, Xi’an, China
| | - Xi Chen
- Shaanxi Eye Hospital, Xi'an People’s Hospital (Xi'an Fourth Hospital), Affiliated People’s Hospital of Northwest University, Xi' an, Shaanxi, China
| | - Rui Xue Zhang
- Xi’an Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Research, Northwestern Polytechnical University, Xi’an, China
| | - Hong Yan
- Shaanxi Eye Hospital, Xi'an People’s Hospital (Xi'an Fourth Hospital), Affiliated People’s Hospital of Northwest University, Xi' an, Shaanxi, China
- Xi’an Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Research, Northwestern Polytechnical University, Xi’an, China
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Guo Y, Li X, Macgregor RB, Yan H, Zhang RX. Microfluidics-based PLGA nanoparticles of ratiometric multidrug: From encapsulation and release rates to cytotoxicity in human lens epithelial cells. Heliyon 2023; 9:e18318. [PMID: 37519652 PMCID: PMC10372405 DOI: 10.1016/j.heliyon.2023.e18318] [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: 06/29/2023] [Revised: 07/13/2023] [Accepted: 07/13/2023] [Indexed: 08/01/2023] Open
Abstract
Multidrug nanomedicine is an effective therapeutic approach for the treatment of chronic diseases and cancers. However, co-encapsulation and release of drug combination at a fixed ratio by nanoparticles, particularly for long acting ocular formulations, remains challenging. Herein, poly (lactic-co-glycolic acid) nanoparticles ratiometrically co-encapsulating hydrophilic dual drugs, mitomycin C and doxorubicin, was obtained (D/M PLGANPs) by combining microfluidics and the Design of Experiments approaches. The formulation variable of lactide-to-glycolide ratios (L/G 50:50, 75:15 and 85:15) was used to achieve fast, medium and slow drug release rates of D/M PLGANPs. The dissolution of D/M PLGANPs in simulated intraocular fluid exhibited sustained release of dual drugs at the fixed ratio over 7 days, and analysis using the Korsmeyer-Peppas model showed mechanism of drug release to be governed by diffusion. More importantly, in human lens epithelial cells, the drug release rate was negatively correlated with drug potency. The slower drug release from D/M PLGANPs led to lower efficacy of drug combination against pathogenesis of cellular migration and proliferation, the key pathogenic processes of capsular opacification after cataract surgery. Compared to fast (L/G 50:50) and medium (L/G 75:15) drug release rate of D/M PLGANPs, the slow release formulation (L/G 85:15) exhibited the least cellular uptake of the dual drugs and the ratio of drug combination was not maintained intracellularly. The present study implicates the potential of using microfluidics for synthesizing polymeric nanoparticles of ratiometric drug combination and highlights the drug release rate as the critical determinant of efficacy for the long-acting nanomedicine design.
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Affiliation(s)
- Yexuan Guo
- Xi’an Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Research, Northwestern Polytechnical University, 127 West Youyi Road, Xi’an, Shaanxi 710072, China
| | - Xinyang Li
- Xi’an People’s Hospital (Xi’an Fourth Hospital), Shaanxi Eye Hospital, Affiliated People’s Hospital of Northwest University, 21 Jiefang Road, Xi’an, Shaanxi 710004, China
| | - Robert B. Macgregor
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, 144 College Street, Toronto, Ontario M5S 3M2, Canada
| | - Hong Yan
- Xi’an Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Research, Northwestern Polytechnical University, 127 West Youyi Road, Xi’an, Shaanxi 710072, China
- Xi’an People’s Hospital (Xi’an Fourth Hospital), Shaanxi Eye Hospital, Affiliated People’s Hospital of Northwest University, 21 Jiefang Road, Xi’an, Shaanxi 710004, China
| | - Rui Xue Zhang
- Xi’an Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Research, Northwestern Polytechnical University, 127 West Youyi Road, Xi’an, Shaanxi 710072, China
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Liu MF, Ma RX, Cao XB, Zhang H, Zhou SH, Jiang WH, Jiang Y, Sun JW, Yang QT, Li XZ, Sun YN, Shi L, Wang M, Song XC, Chen FQ, Zhang XS, Wei HQ, Yu SQ, Zhu DD, Ba L, Cao ZW, Xiao XP, Wei X, Lin ZH, Chen FH, Shan CG, Wang GK, Ye J, Qu SH, Zhao CQ, Wang ZL, Li HB, Liu F, Cui XB, Ye SN, Liu Z, Xu Y, Cai X, Hang W, Zhang RX, Zhao YL, Yu GD, Shi GG, Lu MP, Shen Y, Zhao YT, Pei JH, Xie SB, Yu LG, Liu YH, Gu SS, Yang YC, Cheng L, Liu JF. [Incidence and prognosis of olfactory and gustatory dysfunctions related to infection of SARS-CoV-2 Omicron strain: a national multi-center survey of 35 566 population]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2023; 58:579-588. [PMID: 37339898 DOI: 10.3760/cma.j.cn115330-20230316-00117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/22/2023]
Abstract
Objective: This cross-sectional investigation aimed to determine the incidence, clinical characteristics, prognosis, and related risk factors of olfactory and gustatory dysfunctions related to infection with the SARS-CoV-2 Omicron strain in mainland China. Methods: Data of patients with SARS-CoV-2 from December 28, 2022, to February 21, 2023, were collected through online and offline questionnaires from 45 tertiary hospitals and one center for disease control and prevention in mainland China. The questionnaire included demographic information, previous health history, smoking and alcohol drinking, SARS-CoV-2 vaccination, olfactory and gustatory function before and after infection, other symptoms after infection, as well as the duration and improvement of olfactory and gustatory dysfunction. The self-reported olfactory and gustatory functions of patients were evaluated using the Olfactory VAS scale and Gustatory VAS scale. Results: A total of 35 566 valid questionnaires were obtained, revealing a high incidence of olfactory and taste dysfunctions related to infection with the SARS-CoV-2 Omicron strain (67.75%). Females(χ2=367.013, P<0.001) and young people(χ2=120.210, P<0.001) were more likely to develop these dysfunctions. Gender(OR=1.564, 95%CI: 1.487-1.645), SARS-CoV-2 vaccination status (OR=1.334, 95%CI: 1.164-1.530), oral health status (OR=0.881, 95%CI: 0.839-0.926), smoking history (OR=1.152, 95%CI=1.080-1.229), and drinking history (OR=0.854, 95%CI: 0.785-0.928) were correlated with the occurrence of olfactory and taste dysfunctions related to SARS-CoV-2(above P<0.001). 44.62% (4 391/9 840) of the patients who had not recovered their sense of smell and taste also suffered from nasal congestion, runny nose, and 32.62% (3 210/9 840) suffered from dry mouth and sore throat. The improvement of olfactory and taste functions was correlated with the persistence of accompanying symptoms(χ2=10.873, P=0.001). The average score of olfactory and taste VAS scale was 8.41 and 8.51 respectively before SARS-CoV-2 infection, but decreased to3.69 and 4.29 respectively after SARS-CoV-2 infection, and recovered to 5.83and 6.55 respectively at the time of the survey. The median duration of olfactory and gustatory dysfunctions was 15 days and 12 days, respectively, with 0.5% (121/24 096) of patients experiencing these dysfunctions for more than 28 days. The overall self-reported improvement rate of smell and taste dysfunctions was 59.16% (14 256/24 096). Gender(OR=0.893, 95%CI: 0.839-0.951), SARS-CoV-2 vaccination status (OR=1.334, 95%CI: 1.164-1.530), history of head and facial trauma(OR=1.180, 95%CI: 1.036-1.344, P=0.013), nose (OR=1.104, 95%CI: 1.042-1.171, P=0.001) and oral (OR=1.162, 95%CI: 1.096-1.233) health status, smoking history(OR=0.765, 95%CI: 0.709-0.825), and the persistence of accompanying symptoms (OR=0.359, 95%CI: 0.332-0.388) were correlated with the recovery of olfactory and taste dysfunctions related to SARS-CoV-2 (above P<0.001 except for the indicated values). Conclusion: The incidence of olfactory and taste dysfunctions related to infection with the SARS-CoV-2 Omicron strain is high in mainland China, with females and young people more likely to develop these dysfunctions. Active and effective intervention measures may be required for cases that persist for a long time. The recovery of olfactory and taste functions is influenced by several factors, including gender, SARS-CoV-2 vaccination status, history of head and facial trauma, nasal and oral health status, smoking history, and persistence of accompanying symptoms.
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Affiliation(s)
- M F Liu
- Graduate School of Beijing University of Chinese Medicine, Beijing 100029, China Department of Otorhinolaryngology Head and Neck Surgery, China-Japan Friendship Hospital, Beijing 100029, China
| | - R X Ma
- Department of Otorhinolaryngology Head and Neck Surgery, the First People's Hospital of Yinchuan, Yinchuan 750001, China
| | - X B Cao
- Department of Otorhinolaryngology, the First People's Hospital of Yunnan Province, Kunming 650100, China
| | - H Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| | - S H Zhou
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310003, China
| | - W H Jiang
- Department of Otorhinolaryngology Head and Neck Surgery, Xiangya Hospital Central South University, Changsha 410008, China
| | - Y Jiang
- Department of Otorhinolaryngology Head and Neck Surgery, the Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - J W Sun
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of USTC, Hefei 230001, China
| | - Q T Yang
- Department of Otorhinolaryngology Head and Neck Surgery, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - X Z Li
- Department of Otorhinolaryngology Head and Neck Surgery, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Y N Sun
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - L Shi
- Department of Rhinology and Allergy, Shandong Provincial ENT Hospital, Shandong University, Jinan 250299, China
| | - M Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Peking University People's Hospital, Beijing 100032, China
| | - X C Song
- Department of Otorhinolaryngology Head and Neck Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai 264000, China
| | - F Q Chen
- Department of Otorhinolaryngology Head and Neck Surgery, Xijing Hospital, the Fourth Military Medical University, Xi'an 710032, China
| | - X S Zhang
- Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China
| | - H Q Wei
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of China Medical University, Shenyang 110001, China
| | - S Q Yu
- Department of Otorhinolaryngology Head and Neck Surgery, Tongji Hospital, Tongji Medical University, Shanghai 200065, China
| | - D D Zhu
- Department of Otorhinolaryngology Head and Neck Surgery, China-Japan Union Hospital of Jilin University, Changchun 130033, China
| | - L Ba
- Department of Otorhinolaryngology Head and Neck Surgery, Xizang Autonomous Region People's Hospital, Lasa 850000, China
| | - Z W Cao
- Department of Otorhinolaryngology Head and Neck Surgery, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - X P Xiao
- Department of Otorhinolaryngology Head and Neck Surgery, Hunan Provincial People's Hospital, Changsha 410005, China
| | - X Wei
- Department of Otorhinolaryngology Head and Neck Surgery, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou 570311, China
| | - Z H Lin
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310009, China
| | - F H Chen
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - C G Shan
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - G K Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - J Ye
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - S H Qu
- Department of Otorhinolaryngology Head and Neck Surgery, Guangxi Zhuang Autonomous Region People's Hospital, Nanning 530021, China
| | - C Q Zhao
- Department of Otorhinolaryngology Head and Neck Surgery, Shanxi Medical University Affiliated Second Hospital, Taiyuan 030001, China
| | - Z L Wang
- Department of Otorhinolaryngology Head and Neck Surgery, XuanWu Hospital, Capital Medical University, Beijing 100053, China
| | - H B Li
- Department of Otorhinolaryngology Head and Neck Surgery, Eye, Ear, Nose and Throat Hospital, Shanghai Medical College, Fudan University, Shanghai 200031, China
| | - F Liu
- Department of Otorhinolaryngology Head and Neck Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - X B Cui
- Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010059, China
| | - S N Ye
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, China
| | - Z Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Y Xu
- Department of Otorhinolaryngology Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - X Cai
- Department of Otorhinolaryngology Head and Neck Surgery, Qinghai Provincial People's Hospital, Xining 810000, China
| | - W Hang
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin 300350, China
| | - R X Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Huadong Hospital Affiliated to Fudan University, Shanghai 200040, China
| | - Y L Zhao
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - G D Yu
- Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China
| | - G G Shi
- Department of Otorhinolaryngology Head and Neck Surgery, Shandong Provincial Hospital, Affiliated to Shandong First Medical University, Jinan 250021, China
| | - M P Lu
- Department of Otorhinolaryngology, the First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China
| | - Y Shen
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Y T Zhao
- Department of Otorhinolaryngology Head and Neck Surgery, the First People's Hospital of Yinchuan, Yinchuan 750001, China
| | - J H Pei
- Department of Otorhinolaryngology, the First People's Hospital of Yunnan Province, Kunming 650100, China
| | - S B Xie
- Department of Otorhinolaryngology Head and Neck Surgery, Xiangya Hospital Central South University, Changsha 410008, China
| | - L G Yu
- Department of Otorhinolaryngology Head and Neck Surgery, the Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - Y H Liu
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - S S Gu
- Department of Otorhinolaryngology Head and Neck Surgery, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Y C Yang
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - L Cheng
- Department of Otorhinolaryngology, the First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China
| | - J F Liu
- Department of Otorhinolaryngology Head and Neck Surgery, China-Japan Friendship Hospital, Beijing 100029, China
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7
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Zhang RX, Wang ZL. [The philosophy and methods of anatomy research in skull base]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2023; 58:528-532. [PMID: 37100748 DOI: 10.3760/cma.j.cn115330-20220706-00416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Affiliation(s)
- R X Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Z L Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
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8
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Zhang RX, Wen Y, Guo DD, Xu FR, Wang GM, Wang XR, Shi YW, Ding J, Jiang Q, Jiang WJ, Jonas JB, Bi HS. Intravitreal injection of fibrillin 2 (Fbn2) recombinant protein for therapy of retinopathy in a retina-specific Fbn2 knock-down mouse model. Sci Rep 2023; 13:6865. [PMID: 37100863 PMCID: PMC10133334 DOI: 10.1038/s41598-023-33886-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Accepted: 04/20/2023] [Indexed: 04/28/2023] Open
Abstract
Mutations in the extracellular matrix gene Fibrillin-2 (FBN2) are related to genetic macular degenerative disorders including age-related macular degeneration (AMD) and early-onset macular degeneration (EOMD). It was reported that the retinal protein expression of FBN2 was reduced in patients with AMD and EOMD. The effect of exogenously supplied fbn2 recombinant protein on fbn2-deficiency-related retinopathy was not known. Here we investigated the efficacy and molecular mechanism of intravitreally applied fibrin-2 recombinant protein in mice with fbn2-deficient retinopathy. The experimental study included groups (all n = 9) of adult C57BL/6J male mice which underwent no intervention, intravitreal injection of adeno-associated virus (AAV) empty vector or intravitreal injection of AAV-sh-fbn2 (adeno-associated virus for expressing short hairpin RNA for fibrillin-2) followed by three intravitreal injections of fbn2 recombinant protein, given in intervals of 8 days in doses of 0.30 μg, 0.75 μg, 1.50 μg, and 3.00 μg, respectively. Eyes with intravitreally applied AAV-sh-fbn2 as compared to eyes with injection of AAV-empty vector or developed an exudative retinopathy with involvement of the deep retinal layers, reduction in axial length and reduction in ERG amplitudes. After additional and repeated application of fbn2 recombinant protein, the retinopathy improved with an increase in retinal thickness and ERG amplitude, the mRNA and protein expression of transforming growth factor-beta (TGF-β1) and TGF-β binding protein (LTBP-1) increased, and axial length elongated, with the difference most marked for the dose of 0.75 μg of fbn2 recombinant protein. The observations suggest that intravitreally applied fbn2 recombinant protein reversed the retinopathy caused by an fbn2 knockdown.
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Affiliation(s)
- Rui Xue Zhang
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Ying Wen
- Affiliated Eye Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Da Dong Guo
- Shandong Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Therapy of Ocular Diseases, Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Therapy of Ocular Diseases in Universities of Shandong, Shandong Academy of Eye Disease Prevention and Therapy, Jinan, China
| | - Fu Ru Xu
- Affiliated Eye Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Gui Min Wang
- Affiliated Eye Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Xing Rong Wang
- Affiliated Eye Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yong Wei Shi
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Jie Ding
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Qian Jiang
- Affiliated Eye Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Wen Jun Jiang
- Shandong University of Traditional Chinese Medicine, Jinan, China.
- Affiliated Eye Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China.
- Shandong Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Therapy of Ocular Diseases, Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Therapy of Ocular Diseases in Universities of Shandong, Shandong Academy of Eye Disease Prevention and Therapy, Jinan, China.
| | - Jost B Jonas
- Department of Ophthalmology, Medical Faculty Mannheim of the Ruprecht-Karls-University Heidelberg, Mannheim, Germany.
| | - Hong Sheng Bi
- Affiliated Eye Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China.
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9
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Kang XZ, Zhang RX, Wang Z, Chen XK, Qin JJ, Li Y, Xue Q, He J. [Optimization of perioperative treatment strategies for locally advanced esophageal squamous cell carcinoma from the perspective of tumor heterogeneity]. Zhonghua Wei Chang Wai Ke Za Zhi 2023; 26:334-338. [PMID: 37072310 DOI: 10.3760/cma.j.cn441530-20221126-00494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/20/2023]
Abstract
Recent advances in multimodality treatment offer excellent opportunities to rethink the paradigm of perioperative management for locally advanced esophageal squamous cell carcinoma. One treatment clearly doesn't fit all in terms of a broad disease spectrum. Individualized treatment of local control of bulky primary tumor burden (advanced T stage) or systemic control of nodal metastatic tumor burden (advanced N stage) is essential. Given that clinically applicable predictive biomarkers are still awaited, therapy selection guided by diverse phenotypes of tumor burden (T vs. N) is promising. Potential challenges regarding the use of immunotherapy may also boost this novel strategy in the future.
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Affiliation(s)
- X Z Kang
- Department of Thoracic Surgery, National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital of Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - R X Zhang
- Department of Thoracic Surgery, National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital of Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Z Wang
- Department of Thoracic Surgery, National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital of Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - X K Chen
- Department of Thoracic Surgery, National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital of Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J J Qin
- Department of Thoracic Surgery, National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital of Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y Li
- Department of Thoracic Surgery, National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital of Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Q Xue
- Department of Thoracic Surgery, National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital of Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J He
- Department of Thoracic Surgery, National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital of Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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10
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Zhang RX, Kang XZ, Zheng QF, Wang Z, Chen XK, Li Y, Qin JJ, Li Y. [Advances of immunotherapy-related biomarker in esophageal carcinoma]. Zhonghua Wei Chang Wai Ke Za Zhi 2023; 26:396-400. [PMID: 37072320 DOI: 10.3760/cma.j.cn441530-20221213-00522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/20/2023]
Abstract
Esophageal carcinoma is one of the most common malignant tumors in the world, with incidence and mortality rankings of 7th and 6th, respectively. In recent years, immunotherapy represented by immune checkpoint inhibitors of programmed death-1 and programmed death ligand 1 (PD-L1) has been introduced into clinical practice and has changed the treatment status of esophageal cancer. Although immunotherapy has provided long-term survival benefits for patients with advanced esophageal cancer and high pathological response rates in the neoadjuvant therapy, only a few of the patients have satisfactory therapeutic outcomes. Therefore, effective biomarkers for predicting immunotherapeutic effects are urgently needed to identify those patients who could benefit from immunotherapy. In this paper, we mainly discuss recent research advances of biomarkers related to the immunotherapy of esophageal cancer and the clinical application prospects of these biomarkers.
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Affiliation(s)
- R X Zhang
- Department of Thoracic Surgery, National Cancer Center, National Clinical Research Center for Cancer,Cancer Hospital of Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - X Z Kang
- Department of Thoracic Surgery, National Cancer Center, National Clinical Research Center for Cancer,Cancer Hospital of Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Q F Zheng
- Department of Thoracic Surgery, National Cancer Center, National Clinical Research Center for Cancer,Cancer Hospital of Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Z Wang
- Department of Thoracic Surgery, National Cancer Center, National Clinical Research Center for Cancer,Cancer Hospital of Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - X K Chen
- Department of Thoracic Surgery, National Cancer Center, National Clinical Research Center for Cancer,Cancer Hospital of Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y Li
- Department of Thoracic Surgery, National Cancer Center, National Clinical Research Center for Cancer,Cancer Hospital of Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J J Qin
- Department of Thoracic Surgery, National Cancer Center, National Clinical Research Center for Cancer,Cancer Hospital of Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y Li
- Department of Thoracic Surgery, National Cancer Center, National Clinical Research Center for Cancer,Cancer Hospital of Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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11
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Li X, Liang C, Guo Y, Su J, Chen X, Macgregor RB, Zhang RX, Yan H. Clinical Translation of Long-Acting Drug Delivery Systems for Posterior Capsule Opacification Prophylaxis. Pharmaceutics 2023; 15:pharmaceutics15041235. [PMID: 37111720 PMCID: PMC10143098 DOI: 10.3390/pharmaceutics15041235] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 04/04/2023] [Accepted: 04/08/2023] [Indexed: 04/29/2023] Open
Abstract
Posterior capsule opacification (PCO) remains the most common cause of vision loss post cataract surgery. The clinical management of PCO formation is limited to either physical impedance of residual lens epithelial cells (LECs) by implantation of specially designed intraocular lenses (IOL) or laser ablation of the opaque posterior capsular tissues; however, these strategies cannot fully eradicate PCO and are associated with other ocular complications. In this review, we critically appraise recent advances in conventional and nanotechnology-based drug delivery approaches to PCO prophylaxis. We focus on long-acting dosage forms, including drug-eluting IOL, injectable hydrogels, nanoparticles and implants, highlighting analysis of their controlled drug-release properties (e.g., release duration, maximum drug release, drug-release half-life). The rational design of drug delivery systems by considering the intraocular environment, issues of initial burst release, drug loading content, delivery of drug combination and long-term ocular safety holds promise for the development of safe and effective pharmacological applications in anti-PCO therapies.
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Affiliation(s)
- Xinyang Li
- Xi'an People's Hospital (Xi'an Fourth Hospital), Shaanxi Eye Hospital, Affiliated People's Hospital of Northwest University, 21 Jiefang Road, Xi'an 710004, China
| | - Chen Liang
- Xi'an People's Hospital (Xi'an Fourth Hospital), Shaanxi Eye Hospital, Affiliated People's Hospital of Northwest University, 21 Jiefang Road, Xi'an 710004, China
| | - Yexuan Guo
- Xi'an Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Research, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China
| | - Jing Su
- Xi'an Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Research, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China
| | - Xi Chen
- Xi'an People's Hospital (Xi'an Fourth Hospital), Shaanxi Eye Hospital, Affiliated People's Hospital of Northwest University, 21 Jiefang Road, Xi'an 710004, China
| | - Robert B Macgregor
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, 144 College Street, Toronto, ON M5S 3M2, Canada
| | - Rui Xue Zhang
- Xi'an Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Research, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China
| | - Hong Yan
- Xi'an People's Hospital (Xi'an Fourth Hospital), Shaanxi Eye Hospital, Affiliated People's Hospital of Northwest University, 21 Jiefang Road, Xi'an 710004, China
- Xi'an Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Research, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China
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12
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Wang Z, Chen Y, Zhang N, Zhang RX, He R, Ju X, Mamadalieva NZ. Plant protein nanogel–based patchy Janus particles with tunable anisotropy for perishable food preservation. Food Frontiers 2023. [DOI: 10.1002/fft2.219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2023] Open
Affiliation(s)
- Zhigao Wang
- College of Food Science and Engineering, Collaborative Innovation Center for Modern Grain Circulation and Safety, Key Laboratory of Grains and Oils Quality Control and Processing Nanjing University of Finance and Economics Nanjing China
| | - Yao Chen
- College of Food Science and Engineering, Collaborative Innovation Center for Modern Grain Circulation and Safety, Key Laboratory of Grains and Oils Quality Control and Processing Nanjing University of Finance and Economics Nanjing China
| | - Nan Zhang
- College of Food Science and Engineering, Collaborative Innovation Center for Modern Grain Circulation and Safety, Key Laboratory of Grains and Oils Quality Control and Processing Nanjing University of Finance and Economics Nanjing China
| | - Rui Xue Zhang
- Institute of Medical Research Northwestern Polytechnical University Xi'an Shaanxi China
| | - Rong He
- College of Food Science and Engineering, Collaborative Innovation Center for Modern Grain Circulation and Safety, Key Laboratory of Grains and Oils Quality Control and Processing Nanjing University of Finance and Economics Nanjing China
| | - Xingrong Ju
- College of Food Science and Engineering, Collaborative Innovation Center for Modern Grain Circulation and Safety, Key Laboratory of Grains and Oils Quality Control and Processing Nanjing University of Finance and Economics Nanjing China
| | - Nilufar Z. Mamadalieva
- Laboratory of Chemistry of Glycosides Institute of the Chemistry of Plant Substances AS RUz Tashkent Uzbekistan
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13
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Wang ZL, Liu JQ, Wei W, Qi Y, Zhang RX, Ren QZ, Zhang QH. [Endoscopic transoral resection of metastatic retropharyngeal lymph nodes in nasopharyngeal carcinoma via posteroinferior eustachian tube approach: a single center review study]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:1328-1334. [PMID: 36404659 DOI: 10.3760/cma.j.cn115330-20220418-00198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Objective: To summarize the clinical experience and treatment results of endoscopic transoral resection of metastatic retropharyngeal lymph nodes (MRPLN) in nasopharyngeal carcinoma (NPC) via posteroinferior eustachian tube approach. Methods: The clinical data of 37 patients with NPC who underwent endoscopic transoral surgery via posteroinferior eustachian tube approach for MRPLN in Xuanwu Hospital, Capital Medical University from 2010 to 2020 were analyzed retrospectively. There are 28 males and 9 females, aged from 31 to 72 years. The clinicopathological features such as gender, age, primary tumor stage, stage, side and size of MRPLN were recorded and analyzed. The surgical procedures of endoscopic transoral resection of MRPLN via posteroinferior eustachian tube approach were described. The MRPLN resection, perioperative complications and follow-up results were also summarized. Results: The primary tumors of 37 cases were determined as rT1 stage in 2 cases, rT2 stage in 30 cases and primary T2 stage in 5 cases in this study. There were 33 cases of unilateral MRPLN(89.2%), 4 cases of bilateral ones (10.8%), 36 cases in N1 stage, and 1 case in N3 stage. Single lymph node was detected in 23 cases(62.2%), and 2-5 lymph nodes in 14 cases(37.8%). Endoscopic transoral surgery via posteroinferior eustachian tube approach was completed in all cases. Total MRPLN resection was obtained in 35 cases (94.6%) with one-stage operation, and subtotal resection was achieved in 2 cases whose MRPLN involved the wall of internal carotid artery. No serious complications occurred in the perioperative period. During the follow-up period (median follow-up period 53.1 months), no recurrence of MRPLN was observed in patients who received total resection. And 8 patients (21.6%) died from different causes. Conclusion: Endoscopic transoral surgery via posteroinferior eustachian tube approach for MRPLN is a practicable and effective surgical option, but the long-term effect still needs longer follow-up and summary of bulk cases.
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Affiliation(s)
- Z L Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Skull Base Surgery Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - J Q Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Skull Base Surgery Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - W Wei
- Department of Otorhinolaryngology Head and Neck Surgery, Skull Base Surgery Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Y Qi
- Department of Otorhinolaryngology Head and Neck Surgery, Skull Base Surgery Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - R X Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Q Z Ren
- Department of Otorhinolaryngology Head and Neck Surgery, Skull Base Surgery Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Q H Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Skull Base Surgery Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
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14
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Tian H, Ma YX, Xia J, Zhang RX. [Hybird Rosai-Dorfman disease involving bilateral nasal cavity and cervical lymph nodes: one case report]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:1243-1245. [PMID: 36319132 DOI: 10.3760/cma.j.cn115330-20211103-00710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Affiliation(s)
- H Tian
- Department of Otorhinolaryngology, Beijing Friendship Hospital Affiliated to Capital Medical University, Beijing 100050, China
| | - Y X Ma
- Department of Otorhinolaryngology, Beijing Friendship Hospital Affiliated to Capital Medical University, Beijing 100050, China
| | - J Xia
- Department of Otorhinolaryngology, Beijing Friendship Hospital Affiliated to Capital Medical University, Beijing 100050, China
| | - R X Zhang
- Department of Otorhinolaryngology, Beijing Friendship Hospital Affiliated to Capital Medical University, Beijing 100050, China
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15
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Sun N, Zhang RX, Wang Y, Huang ZJ, Han J, Bao YS, Duan WY, Dong CR, Deng GS, Zhuang G. [Effects of ursolic acid on oxidative stress and inflammatory factors in a rat model of AR after PM2.5 exposure]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:860-867. [PMID: 35866280 DOI: 10.3760/cma.j.cn115330-20210701-00412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To investigate the effects of ursolic acid (UA) on oxidative stress and inflammatory factors in a rat model of AR after PM2.5 exposure. Methods: Sixty healthy female SD rats were randomly divided into five groups: normal control group (NC group), PM2.5 unexposed AR group (AR group), PM2.5 exposed AR group (ARE group), UA intervention AR group (AR+UA group), and UA intervention PM2.5 exposed AR group (ARE+UA group), with 12 rats in each group. AR model was performed by a basal sensitization with intraperitoneal injection of ovalbumin (OVA) and followed by nasal instillation. PM2.5 exposure was carried out by inhalation exposure system at a concentration of 200 μg/m3 for 3 h/d for 30 days. UA intervention group was given UA intragastric administration at 20 mg/(kg·d). AR symptoms including sneezing, nasal scratching and nasal secretion of rats in each group were observed. The activities of superoxide dismutase (SOD) and the level of malondialdehyde (MDA) in nasal mucosa were tested. The pathological changes of nasal mucosa were observed by HE staining. The levels of OVA-sIgE, IL-6 and IL-17 in serum were measured by enzyme-linked immunosorbent assay (ELISA). Protein microarray was used to measure the expression of multiple inflammation cell factors in nasal mucosa. Statistical analysis was performed with SPSS 20.0. Results: After UA intervention, the frequency of nasal sneezing, scratching and nasal secretion in ARE+UA group were lower than those of ARE group (P<0.05). Pathological examination of nasal mucosa showed that ARE+UA group had less inflammatory granulocyte infiltration and less pathological damage to the epithelial layer than ARE group. The activities of SOD in nasal mucosa of ARE+UA group were higher than those of ARE group ((50.10±3.09) U/mg vs (20.13±1.30) U/mg, F value was 597.54, P<0.01). The contents of MDA in nasal mucosa of ARE+UA group were lower than those of ARE group ((57.78±12.36) nmol/g vs (124.12±9.40) nmol/g, F value was 115.51, P<0.01). The expression levels of OVA-sIgE, IL-6 and IL-17 proteins were lower in the ARE+UA group than those in ARE group ((11.61±0.27) ng/ml vs (20.30±0.67) ng/ml, (47.59±15.49) pg/ml vs (98.83±10.98) pg/ml, (623.30±8.75) pg/ml vs (913.32±9.06) pg/ml, F value was 283.42, 80.45, 683.73, respectively, all P<0.01). After UA intervention, protein microarray analysis showed that the expression of IL-4, IL-6, IL-13, chemokine CXCL7, IL-1α, IL-1β, MMP-8 and MCP-1 in ARE+UA group was decreased compared with ARE group while IFN-γ and IL-10 increased (all P<0.01). Conclusion: UA can reduce the aggravated AR symptoms and pathological damage of nasal mucosa, inhibit oxidative stress and release of inflammatory factors after PM2.5 exposure, and thus plays a protective role in the pathological damage of AR induced by PM2.5 exposure.
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Affiliation(s)
- N Sun
- Department of Otorhinolaryngology, Huadong Hospital, Fudan University, Shanghai 200040, China
| | - R X Zhang
- Department of Otorhinolaryngology, Huadong Hospital, Fudan University, Shanghai 200040, China
| | - Y Wang
- Department of Otorhinolaryngology, Huadong Hospital, Fudan University, Shanghai 200040, China
| | - Z J Huang
- Department of Otorhinolaryngology, Huadong Hospital, Fudan University, Shanghai 200040, China
| | - J Han
- Department of Otorhinolaryngology, Huadong Hospital, Fudan University, Shanghai 200040, China
| | - Y S Bao
- Department of Otorhinolaryngology, Huadong Hospital, Fudan University, Shanghai 200040, China
| | - W Y Duan
- Department of Environmental, Shanghai 200232, China
| | - C R Dong
- Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China
| | - G S Deng
- Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China
| | - Guoshun Zhuang
- Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China
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16
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Sun N, Zhang RX. [Research progress of ozone in the pathogenesis of allergic rhinitis]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:515-518. [PMID: 35527451 DOI: 10.3760/cma.j.cn115330-20210630-00408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- N Sun
- Department of Otorhinolaryngology, Huadong Hospital, Fudan University, Shanghai 200040, China
| | - R X Zhang
- Department of Otorhinolaryngology, Huadong Hospital, Fudan University, Shanghai 200040, China
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17
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Zhang RX, Yu H, Zhang P, Li JJ, Ren CC, Zhao J. [Analysis of the characteristics of MRI T 2 value changes of the muscles around the knee joint before and after the race in amateur marathon runners based on T 2 mapping]. Zhonghua Yi Xue Za Zhi 2022; 102:648-653. [PMID: 35249308 DOI: 10.3760/cma.j.cn112137-20210626-01448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To evaluate the characteristics of MRI T2 value changes of muscles around the knee joint in amateur marathon athletes based on T2 mapping. Methods: A total of 12 amateur marathon runners (5 males and 7 females) were recruited as the marathon group, aged from 21 to 37(27.5±5.4) years. MRI examination of bilateral knee joint was performed one week before the race, within 12 hours after the race and two months after the race, respectively. Fifteen healthy volunteers (5 males and 10 females) were recruited as the control group, aged from 24 to 27(24.9±1.0) years, and underwent MRI examination of both knee joints. The T2 mapping imaging sequence was used to measure the T2 values of the sartorius, vastus medialis, biceps femoris, semimembranosus, medial head of gastrocnemius and lateral gastrocnemius head on the post-processing platform, and analyzed the marathon group before and after the race. The differences in the T2 value of each muscle of the marathon group before and after the race within 12 hours, before and 2 months after the race, and between the control group and the marathon group before the marathon were analyzed. Results: All subjects had not knee joint pain during the examination. Routine MRI examination showed that there was no obvious abnormality in the shape and signal of the muscles around the knee joint. The T2 value of the semimembranosus [(34.3±2.8) ms vs (35.5±2.5) ms, P=0.008], medial head of gastrocnemius [(34.1±3.4) ms vs (37.7±3.1) ms,P<0.001] and lateral head of gastrocnemius [(35.2±2.9) ms vs (37.2±3.9) ms,P=0.011] increased after the competition compared with that of pre-competition in the marathon group, while the T2 value of the remaining muscles showed no significant difference compared with that of pre-competition(P>0.05). At the follow-up of 2 months, the T2 value of semimembranosus remains higher than before the marathon [(34.3±2.8) ms vs (35.4±2.5) ms,P=0.043], and the T2 value of the medial head of the gastrocnemius and lateral head of gastrocnemius showed no statistically difference compared with pre-competition (P>0.05). Compared with the control group, the T2 value of the lateral head of the gastrocnemius in the marathon group was decreased [(35.3±3.0) ms vs (38.5±4.1) ms,P=0.007]. There was no significant difference in the T2 value of the remaining muscles in the marathon group (P>0.05). Conclusions: After the marathon, the changes in the T2 value of the muscles around the knee joint is reversible. T2 mapping imaging sequence can indirectly reflect the changes of skeletal muscle microstructure to a certain extent.
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Affiliation(s)
- R X Zhang
- Department of CT/MR, the Third Hospital of Hebei Medical University, Hebei Province Biomechanical Key Laboratory of Orthopedics, Shijiazhuang 050051, China
| | - H Yu
- Department of CT/MR, the Third Hospital of Hebei Medical University, Hebei Province Biomechanical Key Laboratory of Orthopedics, Shijiazhuang 050051, China
| | - P Zhang
- Department of CT/MR, the Third Hospital of Hebei Medical University, Hebei Province Biomechanical Key Laboratory of Orthopedics, Shijiazhuang 050051, China
| | - J J Li
- Department of CT/MR, the Third Hospital of Hebei Medical University, Hebei Province Biomechanical Key Laboratory of Orthopedics, Shijiazhuang 050051, China
| | - C C Ren
- Department of CT/MR, the Third Hospital of Hebei Medical University, Hebei Province Biomechanical Key Laboratory of Orthopedics, Shijiazhuang 050051, China
| | - J Zhao
- Department of CT/MR, the Third Hospital of Hebei Medical University, Hebei Province Biomechanical Key Laboratory of Orthopedics, Shijiazhuang 050051, China
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18
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Tian Y, Zhao Y, Yin C, Tan S, Wang X, Yang C, Zhang TD, Zhang X, Ye F, Xu J, Wu X, Ding L, Zhang J, Pei J, Wang XT, Zhang RX, Xu J, Wang W, Filipe CD, Hoare T, Yin DC, Qian A, Deng X. Polyvinylamine with moderate binding affinity as a highly effective vehicle for RNA delivery. J Control Release 2022; 345:20-37. [DOI: 10.1016/j.jconrel.2022.03.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 02/28/2022] [Accepted: 03/01/2022] [Indexed: 12/13/2022]
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19
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Kang XZ, Zhang RX, Wang Z, Zheng QF, Chen XK, Li Y, Qin JJ, Li Y. [Oligometastatic and oligoprogressive esophageal squamous cell carcinoma:clarifying conceptions and surgery perspectives]. Zhonghua Wai Ke Za Zhi 2022; 60:122-127. [PMID: 35012270 DOI: 10.3760/cma.j.cn112139-20210818-00378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The oligometastatic and oligoprogressive state has been a hot issue in cancer research. Its indolent tumor behavior, representing a novel therapeutic opportunity, has been identified as a clinical subtype in several malignancies. However, the clinical implications of the oligometastatic and oligoprogressive state in esophageal squamous cell carcinoma (ESCC) have not been thoroughly elucidated. There are still controversies regarding the existence of the oligometastatic state in ESCC, if the solitary regional lymph node metastasis should be viewed as oligoprogressive disease after esophagectomy, and the role of surgery and radiotherapy in ESCC oligometastatic disease. Despite many exciting contributions to the literature on these, further exploration is warranted. Thus, fostering the advance of research and scientific knowledge on the biological and prognostic characteristics scrupulously would facilitate personalizing treatment strategy for better outcomes.
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Affiliation(s)
- X Z Kang
- Department of Thoracic Surgery, National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - R X Zhang
- Department of Thoracic Surgery, National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Z Wang
- Department of Thoracic Surgery, National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Q F Zheng
- Department of Thoracic Surgery, National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - X K Chen
- Department of Thoracic Surgery, National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y Li
- Department of Thoracic Surgery, National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J J Qin
- Department of Thoracic Surgery, National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y Li
- Department of Thoracic Surgery, National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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20
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Lu W, Miao R, Hu S, Liu J, Jin F, Zhang RX. Microsurgical Skills of Establishing Permanent Jugular Vein Cannulation in Rats for Serial Blood Sampling of Orally Administered Drug. J Vis Exp 2021. [PMID: 34978300 DOI: 10.3791/63167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Blood sampling in small laboratory animals is necessary for pharmaceutical lead optimization but can cause great harm and stress to experimental animals, which could potentially affect results. The jugular vein cannulation (JVC) in rats is a widely used model for repeated blood collection but requires adequate training of surgery skills and animal care. This article details the microsurgical procedures for establishing and maintaining a permanent JVC rat model with specific focus on the placement and sealing of the jugular cannula. The importance of monitoring physiological (e.g., body weight, food, and water intake) and hematological parameters, was highlighted with results presented for 6 days post-surgery during the rat's recovery. The drug-plasma concentration-time profile of orally administered natural phenol ellagic acid was determined in the JVC rat model.
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Affiliation(s)
- Weijia Lu
- Xi'an Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Research, Northwestern Polytechnical University
| | - Ruimin Miao
- Xi'an Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Research, Northwestern Polytechnical University
| | - Sijun Hu
- Xi'an Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Research, Northwestern Polytechnical University
| | - Junhong Liu
- Xi'an Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Research, Northwestern Polytechnical University
| | - Fanqi Jin
- Xi'an Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Research, Northwestern Polytechnical University
| | - Rui Xue Zhang
- Xi'an Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Research, Northwestern Polytechnical University;
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21
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Zhang RX, Dong K, Wang Z, Miao R, Lu W, Wu XY. Nanoparticulate Drug Delivery Strategies to Address Intestinal Cytochrome P450 CYP3A4 Metabolism towards Personalized Medicine. Pharmaceutics 2021; 13:1261. [PMID: 34452222 PMCID: PMC8399842 DOI: 10.3390/pharmaceutics13081261] [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] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/11/2021] [Accepted: 08/13/2021] [Indexed: 01/01/2023] Open
Abstract
Drug dosing in clinical practice, which determines optimal efficacy, toxicity or ineffectiveness, is critical to patients' outcomes. However, many orally administered therapeutic drugs are susceptible to biotransformation by a group of important oxidative enzymes, known as cytochrome P450s (CYPs). In particular, CYP3A4 is a low specificity isoenzyme of the CYPs family, which contributes to the metabolism of approximately 50% of all marketed drugs. Induction or inhibition of CYP3A4 activity results in the varied oral bioavailability and unwanted drug-drug, drug-food, and drug-herb interactions. This review explores the need for addressing intestinal CYP3A4 metabolism and investigates the opportunities to incorporate lipid-based oral drug delivery to enable precise dosing. A variety of lipid- and lipid-polymer hybrid-nanoparticles are highlighted to improve drug bioavailability. These drug carriers are designed to target different intestinal regions, including (1) local saturation or inhibition of CYP3A4 activity at duodenum and proximal jejunum; (2) CYP3A4 bypass via lymphatic absorption; (3) pH-responsive drug release or vitamin-B12 targeted cellular uptake in the distal intestine. Exploitation of lipidic nanosystems not only revives drugs removed from clinical practice due to serious drug-drug interactions, but also provide alternative approaches to reduce pharmacokinetic variability.
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Affiliation(s)
- Rui Xue Zhang
- Institute of Medical Research, Northwestern Polytechnical University, 127 West Youyi Road, Xi’an 710072, China; (R.X.Z.); (R.M.); (W.L.)
| | - Ken Dong
- Advanced Pharmaceutics & Drug Delivery Laboratory, Leslie Dan Faculty of Pharmacy, University of Toronto, 144 College Street, Toronto, ON M5S 3M2, Canada;
| | - Zhigao Wang
- College of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing 210003, China;
| | - Ruimin Miao
- Institute of Medical Research, Northwestern Polytechnical University, 127 West Youyi Road, Xi’an 710072, China; (R.X.Z.); (R.M.); (W.L.)
| | - Weijia Lu
- Institute of Medical Research, Northwestern Polytechnical University, 127 West Youyi Road, Xi’an 710072, China; (R.X.Z.); (R.M.); (W.L.)
| | - Xiao Yu Wu
- Advanced Pharmaceutics & Drug Delivery Laboratory, Leslie Dan Faculty of Pharmacy, University of Toronto, 144 College Street, Toronto, ON M5S 3M2, Canada;
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22
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Amini MA, Ahmed T, Liu FCF, Abbasi AZ, Soeandy CD, Zhang RX, Prashad P, Cummins CL, Rauth AM, Henderson JT, Wu XY. Exploring the transformability of polymer-lipid hybrid nanoparticles and nanomaterial-biology interplay to facilitate tumor penetration, cellular uptake and intracellular targeting of anticancer drugs. Expert Opin Drug Deliv 2021; 18:991-1004. [PMID: 33703991 DOI: 10.1080/17425247.2021.1902984] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
BACKGROUND Successful delivery of anticancer drugs to intracellular targets requires different properties of the nanocarrier to overcome multiple transport barriers. However, few nanocarrier systems, to date, possess such properties, despite knowledge about the biological fate of inorganic and polymeric nanocarriers in relation to their fixed size, shape and surface properties. Herein, a polymer-lipid hybrid nanoparticle (PLN) system is described with size and shape transformability and its mechanisms of cellular uptake and intracellular trafficking are studied. METHODS Pharmaceutical lipids were screened for use in transformable PLN. Mechanisms of cellular uptake and the role of fatty acid-binding proteins in intracellular trafficking of PLN were investigated in breast cancer cells. Intra-tumoral penetration and retention of doxorubicin (DOX) were evaluated by confocal microscopy. RESULTS The lead PLNs showed time-dependent size reduction and shape change from spherical to spiky shape. This transformability of PLNs and lipid trafficking pathways facilitated intracellular transport of DOX-loaded PLN (DOX-PLN) into mitochondria and nuclei. DOX-PLN significantly increased DOX penetration and retention over free DOX or non-transformable liposomal DOX particles at 4 h post-intravenous administration. CONCLUSION Transformability of PLN and lipid-biology interplay can be exploited to design new nanocarriers for effective drug delivery to tumor cells and intracellular targets.
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Affiliation(s)
- Mohammad Ali Amini
- Advanced Pharmaceutics & Drug Delivery Laboratory, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario, Canada
| | - Taksim Ahmed
- Advanced Pharmaceutics & Drug Delivery Laboratory, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario, Canada
| | - Fuh-Ching Franky Liu
- Advanced Pharmaceutics & Drug Delivery Laboratory, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario, Canada
| | - Azhar Z Abbasi
- Advanced Pharmaceutics & Drug Delivery Laboratory, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario, Canada
| | - Chesarahmia Dojo Soeandy
- Advanced Pharmaceutics & Drug Delivery Laboratory, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario, Canada
| | - Rui Xue Zhang
- Advanced Pharmaceutics & Drug Delivery Laboratory, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario, Canada
| | - Preethy Prashad
- Advanced Pharmaceutics & Drug Delivery Laboratory, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario, Canada
| | - Carolyn L Cummins
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario, Canada
| | - Andrew M Rauth
- Departments of Medical Biophysics and Radiation Oncology, University of Toronto, Princess Margaret Cancer Centre, 610 University Avenue, Toronto, Ontario, Canada
| | - Jeffrey T Henderson
- Advanced Pharmaceutics & Drug Delivery Laboratory, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario, Canada
| | - Xiao Yu Wu
- Advanced Pharmaceutics & Drug Delivery Laboratory, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario, Canada
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Wei HD, Chen YJ, Zeng XY, Bi YJ, Wang YN, Zhao S, Li JH, Li X, Zhang RX, Bao J. Keel-bone fractures are associated with bone quality differences in laying hens. Anim Welf 2021. [DOI: 10.7120/09627286.30.1.071] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
This study aimed to investigate the relationship between bone quality in terms of metabolism, homeostasis of elements, bone mineral density (BMD), and microstructure and keel-bone fractures in laying hens (Gallusgallusdomesticus). One hundred and twenty 17 week old Lohmann White
laying hens with normal keel bones were individually housed in furnished cages for 25 weeks. Birds were then euthanased and dissected to assess keel-bone status at 42 weeks. Serum and keel-bone samples from normal keel (NK) and fractured keel (FK) hens were collected to determine the previously
mentioned bone quality parameters. The results showed FK hens to have higher levels of the components of osteocalcin, greater alkaline phosphatase activity in serum and keel bones, and greater tartrate-resistant acid phosphatase (TRAP) activity in keel bones, compared to NK hens. Additionally,
FK hens also had higher concentrations of Li, B, K, Cu, As, Se, Sn, Hg, and Pb, but lower concentrations of Na, P, and Ca. Moreover, FK hens showed decreased bone microstructural parameters including bone volume/tissue volume, trabecular number, degree of anisotropy, connectivity density,
and BMD, but increased trabecular separation. Meanwhile, no differences were detected in serum TRAP activity, trabecular thickness, bone surface, or bone surface/bone volume. Results showed laying hens with keel-bone fractures to have differences in bone metabolism, elements of homeostasis,
bone microstructure parameters, and BMD. These results suggest that keel-bone fractures may be associated with bone quality.
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24
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Li DM, Chai B, Liu WH, Wen PP, Zhang RX. Qualitative analysis of a class of SISM epidemic model influenced by media publicity. Math Biosci Eng 2020; 17:5727-5751. [PMID: 33120575 DOI: 10.3934/mbe.2020308] [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] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Considering the influence of media lagging publicity on the awareness rate of epidemic situation, this paper introduces the accumulation of epidemic awareness variables, establishes the SISM infectious disease model influenced by media publicity, and gives the sufficient conditions for the global asymptotic stability of the model disease-free equilibrium, the stability of the endemic disease equilibrium and the existence of the Hopf bifurcation. The variation trend of different effects of delayed media publicity on the outbreak is simulated. Based on the data of A (H1N1), the interference degree of the parameters in the model is analyzed. The results show that shortening the lag time of the media report and increasing the implementation rate and the transfer rate of media propaganda can effectively control the epidemic and gradually end the epidemic.
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Affiliation(s)
- Dong Mei Li
- College of Science, Harbin University of Science and Technology, Harbin 150080, China
| | - Bing Chai
- College of Science, Harbin University of Science and Technology, Harbin 150080, China
| | - Wei Hua Liu
- College of Science, Harbin University of Science and Technology, Harbin 150080, China
| | - Pan Pan Wen
- College of Science, Harbin University of Science and Technology, Harbin 150080, China
| | - Rui Xue Zhang
- College of Science, Harbin University of Science and Technology, Harbin 150080, China
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25
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Zhou RM, Shao B, Luo C, Dai HY, Xu J, Li XY, Wang N, Zhang RX, Ji F, Yang B, Jiang ZW, Hu F, Liu SP, Yao JJ, Liu Y, Zhou YW, Guan JX, Xiao ZM, Lu ZN. [Analysis of differences in epidemiology and clinical features of Guillain-Barré syndrome between rural and urban areas of southern China]. Zhonghua Yi Xue Za Zhi 2019; 99:3432-3436. [PMID: 31752474 DOI: 10.3760/cma.j.issn.0376-2491.2019.43.017] [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: 06/10/2023]
Abstract
Objective: To explore the differences in epidemiology and clinical features of Guillain- Barré syndrome (GBS) between rural and urban areas of southern China. Methods: The clinical data of 759 hospitalized GBS patients from 31 hospitals of 13 provinces/cities in southern China, between January 1st, 2013 and September 30th, 2016, were collected and analyzed retrospectively. Results: The risk of GBS was higher for males than females in rural and urban areas and the median age was 49 and 48 years, respectively. Seasonal clustering in winter and spring was noted in both rural and urban areas, and the seasonal trend was more markedly in rural areas, but the differences showed no statistical significance. There were 70.37% of patients in rural areas and 73.69% in urban areas who had antecedent respiratory infection. The median time from onset to nadir was 7 days, and Hughes Disability Scale at admission, nadir and discharge were (2.95±1.10 vs 2.84±1.15), (3.25±1.11 vs 3.14±1.21), (2.02±1.24 vs 2.00±1.31) in rural and urban areas respectively. Albuminocytologic dissociation was present in 84.34% of patients in rural areas and 84.62% of cases in urban areas. There were 8.65% and 10.94% of cases in rural and urban areas who required mechanical ventilation during hospitalization, respectively. Demyelinating GBS accounted for 53.29% and 48.77%, respectively, in patients with findings of nerve conduction studies available in rural and urban areas. Conclusions: GBS in rural areas of southern China showed male predominance and a peak of spring and winter occurrence, with respiratory infection as the predominated preceding events and demyelinating GBS being main clinical subtype. Winter and spring showed a higher incidence of GBS in rural and urban areas. There were no significant differences of sex, age, preceding events, season trend, progression of disease, clinical subtypes and cerebrospinal fluid investigations in GBS patients between rural and urban areas.
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Affiliation(s)
- R M Zhou
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - B Shao
- Department of Neurology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - C Luo
- Department of Rehabilitation Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - H Y Dai
- Department of Neurology, Sichuan Provincial People's Hospital, Chengdu 410072, China
| | - J Xu
- Department of Neurology, Northern Jiangsu People's Hospital, Yangzhou 225001, China
| | - X Y Li
- Department of Neurology, Guizhou Provincial People's Hospital, Guiyang 550002, China
| | - N Wang
- Department of Neurology, Affiliated Taihe Hospital of Hubei University of Medicine, Shiyan 442000, China
| | - R X Zhang
- Department of Neurology, the Third Xiangya Hospital of Central South University, Changsha 410000, China
| | - F Ji
- Department of Neurology, the First Affiliated Hospital, Zhejiang University, Hangzhou 310003, China
| | - B Yang
- Department ofNeurology, Yichang Central People's Hospital, China Three Gorges University, Yichang 443003, China
| | - Z W Jiang
- Department of Neurology, the First Affiliated Hospital of Yangtze University, Jingzhou 434000, China
| | - F Hu
- Department of Neurology, Jiangxi Provincial People's Hospital, Nanchang 330006, China
| | - S P Liu
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - J J Yao
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Y Liu
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Y W Zhou
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - J X Guan
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Z M Xiao
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Z N Lu
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan 430060, China
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Zhao RW, Guo ZQ, Zhang RX, Deng CR, Dong WY, Zhuang GS. [The role of autophagy in PM2.5-induced inflammation in human nasal epithelial cells]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 54:510-516. [PMID: 31315358 DOI: 10.3760/cma.j.issn.1673-0860.2019.07.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the role of autophagy in PM2.5-induced inflammation in human nasal epithelial cells and related mechanism. Methods: Human nasal epithelial cells were exposed to different concentration of PM2.5 for different times, and the expression levels of microtubule-associated protein-1 light chain-3 Ⅱ (LC3 Ⅱ) and Beclin1 proteins were measured by Western blot. The typical autophagosome and autolysosome were observed by using transmission electron microscopy (TEM). To observe autophagic flux, mRFP-GFP-LC3 plasmid was transfected to nasal epithelial cells and the punctate staining of mRFP-GFP-LC3 were determined by confocal laser scanning microscope. The expression of inflammatory cytokines interleukin 6 (IL-6) and tumor necrosis factor-α (TNF-α) in cell culture supernatant were assessed by enzyme-linked immunosorbent assay (ELISA). To assess the role of autophagy in PM2.5-mediated inflammation, autophagy related gene Atg5 and Beclin-1 were silenced by siRNA knockdown, and inflammatory cytokines were analyzed.GraphPad Prism 6.0 was used for statistical analysis. Results: PM2.5 exposure increased the expression of LC3 Ⅱ and Beclin-1 proteins in a dose- (in PM2.5 group with concentration of 0, 15, 30, 60, 120 μg/ml, the expression of LC3 Ⅱ was 0.021±0.001(x±s), 0.037±0.002, 0.058±0.005, 0.075±0.006, 0.085±0.004, respectively, F=126.8, P<0.05; the expression of Beclin-1 was 0.002±0.000, 0.003±0.000, 0.005±0.000, 0.007±0.001, 0.008±0.001, respectively, F=137.3, P<0.05) and time-dependent manner (in PM2.5 group with exposure time of 0, 3, 6, 12, 24 h, the expression of LC3Ⅱ was 0.160±0.007, 0.222±0.003, 0.251±0.015, 0.483±0.029, 0.585±0.035, respectively, F=215.3, P<0.05; the expression of Beclin-1 was 0.059±0.002, 0.080±0.002, 0.087±0.002, 0.183±0.007, 0.228±0.005, respectively, F=137.3, P<0.05) in human nasal epithelial cells. TEM analysis showed typical autophagosome and autolysosome in cells after PM2.5 exposure for 24 h. PM2.5 significantly increased the number of yellow and red dots representing autophagosomes and autolysosomes respectively, indicating autophagic flux was elevated. Moreover, PM2.5 enhanced the secretion of inflammatory cytokines such as IL-6 and TNF-α, which was dramatically prevented by Atg5-siRNA and Beclin-1-siRNA. Conclusion: Autophagy plays an important role in PM2.5-caused inflammation response in nasal epithelial cells, which can induce release of inflammatory factors such as IL-6 and TNF-α and advance the inflammatory reaction.
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Affiliation(s)
- R W Zhao
- Department of Otorhinolaryngology, Huadong Hospital, Fudan University, Shanghai 200040, China
| | - Z Q Guo
- Department of Otorhinolaryngology, Huadong Hospital, Fudan University, Shanghai 200040, China
| | - R X Zhang
- Department of Otorhinolaryngology, Huadong Hospital, Fudan University, Shanghai 200040, China
| | - C R Deng
- Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China
| | - W Y Dong
- Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China
| | - G S Zhuang
- Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China
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27
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Li Y, Liu J, Liu G, Pan Z, Zhang M, Ma Y, Wei Q, Xia H, Zhang RX, She J. Murine Appendectomy Model of Chronic Colitis Associated Colorectal Cancer by Precise Localization of Caecal Patch. J Vis Exp 2019. [PMID: 31498319 DOI: 10.3791/59921] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
The human appendix has been recently implicated to play important biological roles in the pathogenesis of various complex diseases, such as colorectal cancer, inflammatory bowel disease, and Parkinson's disease. To study the function of the appendix, a gut disease-associated murine appendectomy model has been established and its step-by-step protocol is described here. This report introduces a facile protocol for caecal patch removal in mice followed by the chemical induction of chronic colitis-associated colorectal cancer using a combination of dextran sulfate sodium (DSS) and azoxymethane (AOM). IgA specific cells and IgA concentration were significantly reduced upon removal of the caecal patch in male C57BL/6 mice compared to those in the sham group. Simultaneously administering 2% DSS and AOM resulted in nearly 80% mice survival in both sham and appendectomy groups without significant body weight loss. Histological results confirmed colonic inflammation and different degrees of adenocarcinoma. This model can be used for the study of the functional role of the appendix in maintaining gut microbiota homeostasis and pathogenesis of gut colitis and malignancies, as well as for the potential development of drug targeting therapies.
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Affiliation(s)
- Yaguang Li
- Department of General Surgery, The First Affiliated Hospital, Xi'an Jiaotong University
| | - Junhong Liu
- Institute of Medical Research, Northwestern Polytechnical University; School of Life Sciences, Northwestern Polytechnical University
| | - Gaixia Liu
- Department of General Surgery, The First Affiliated Hospital, Xi'an Jiaotong University
| | - Zhenhong Pan
- Institute of Medical Research, Northwestern Polytechnical University; School of Life Sciences, Northwestern Polytechnical University
| | - Mingxia Zhang
- Department of General Surgery, The First Affiliated Hospital, Xi'an Jiaotong University
| | - Yao Ma
- Department of Medicine, Xi'an Jiaotong University
| | - Qingxia Wei
- Department of General Surgery, The First Affiliated Hospital, Xi'an Jiaotong University; Princess Margaret Cancer Center, University of Health Network
| | - Hongping Xia
- Department of General Surgery, The First Affiliated Hospital, Xi'an Jiaotong University; Department of Pathology, Nanjing Medical University
| | - Rui Xue Zhang
- Department of General Surgery, The First Affiliated Hospital, Xi'an Jiaotong University; Institute of Medical Research, Northwestern Polytechnical University;
| | - Junjun She
- Department of General Surgery, The First Affiliated Hospital, Xi'an Jiaotong University;
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28
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Guo ZQ, Zhao RW, Zhang RX, Deng CR, Dong WY, Zhuang GS. [Effect of PM2.5 on inflammatory factors and pathology of nasal mucosa in a rat model of allergic rhinitis]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 54:445-449. [PMID: 31137096 DOI: 10.3760/cma.j.issn.1673-0860.2019.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect of PM2.5 exposure on nasal inflammatory cytokines and nasal mucosal pathology in a rat model of allergic rhinitis (AR). Methods: Twenty-four healthy female SD rats were randomly divided into 3 groups by random number table method, with 8 rats in each group: normal control group (NC group), ovalbumin (OVA) induced AR model (AR group), and AR model group inhaled to PM2.5 at 200 μg/m(3), 3 h/d, for 30 d (ARE group). Nasal symptoms including sneezing, nasal rubs and nasal secretion were recorded. Levels of OVA specific IgE in serum, interleukin 6 (IL-6) and tumor necrosis factor-ɑ (TNF-ɑ) in nasal irrigating solution were measured by enzyme-linked immunosorbent assay (ELISA). The histopathological changes of nasal mucosa were observed by HE staining. SPSS 17.0 software was used to analyze the data. Results: The number of sneezing, nasal rubs and the amount of nasal secretion in the ARE group were significantly higher than that in the AR group and the NC group (number of sneezing (15.38±1.68) times/15 min vs (11.63±1.13) times/15 min vs (1.75±0.71) times/15 min, number of nasal rubs (27.75±2.12) times/15 min vs (21.25±2.96) times/15 min vs (5.25±1.04) times/15 min, amount of nasal secretion (18.90±2.07) mg vs (13.83±1.81) mg vs (3.78±0.41) mg, F values was 236.089, 224.139, 183.971, respectively, all P<0.001). Statistically significant differences in OVA specific IgE, IL-6 and TNF-ɑ levels were observed in ARE group exceeded AR group and NC group (OVA specific IgE (25.42±2.51) ng/ml vs (18.07±1.07) ng/ml vs (1.47±0.26) ng/ml, IL-6 (123.30±18.86) pg/ml vs (63.49±11.29) pg/ml vs (16.87±3.29) pg/ml, TNF-ɑ (162.50±38.15) pg/ml vs (72.96±11.28) pg/ml vs (27.52±4.15) pg/ml, F values was 481.604, 138.277, 63.938, respectively, all P<0.001). HE staining showed that the nasal epithelial cells of NC group were intact and neatly arranged. Nasal mucosa epithelial cells were arranged in disorder in AR group, with tissue structure swelling. Partial shedding of nasal epithelial cells, mucosal basement membrane thickening, submucosal tissue interstitial edema, vasodilation and gland hyperplasia were found in ARE group. Conclusion: An increase inflammatory factors level such as IL-6 and TNF-ɑ aggravates pathological damage of nasal mucosa in a rat model of AR by exposure to PM2.5.
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Affiliation(s)
- Z Q Guo
- Department of Otorhinolaryngology, Huadong Hospital, Fudan University, Shanghai 200040, China
| | - R W Zhao
- Department of Otorhinolaryngology, Huadong Hospital, Fudan University, Shanghai 200040, China
| | - R X Zhang
- Department of Otorhinolaryngology, Huadong Hospital, Fudan University, Shanghai 200040, China
| | - C R Deng
- Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China
| | - W Y Dong
- Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China
| | - G S Zhuang
- Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China
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Hu J, Li Y, Pakpour S, Wang S, Pan Z, Liu J, Wei Q, She J, Cang H, Zhang RX. Dose Effects of Orally Administered Spirulina Suspension on Colonic Microbiota in Healthy Mice. Front Cell Infect Microbiol 2019; 9:243. [PMID: 31334136 PMCID: PMC6624478 DOI: 10.3389/fcimb.2019.00243] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [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: 01/29/2019] [Accepted: 06/21/2019] [Indexed: 12/28/2022] Open
Abstract
Oral supplemented nutraceuticals derived from food sources are surmised to improve the human health through interaction with the gastrointestinal bacteria. However, the lack of fundamental quality control and authoritative consensus (e.g., formulation, route of administration, dose, and dosage regimen) of these non-medical yet bioactive compounds are one of the main practical issues resulting in inconsistent individual responsiveness and confounded clinical outcomes of consuming nutraceuticals. Herein, we studied the dose effects of widely used food supplement, microalgae spirulina (Arthrospira platensis), on the colonic microbiota and physiological responses in healthy male Balb/c mice. Based on the analysis of 16s rDNA sequencing, compared to the saline-treated group, oral administration of spirulina once daily for 24 consecutive days altered the diversity, structure, and composition of colonic microbial community at the genus level. More importantly, the abundance of microbial taxa was markedly differentiated at the low (1.5 g/kg) and high (3.0 g/kg) dose of spirulina, among which the relative abundance of Clostridium XIVa, Desulfovibrio, Eubacterium, Barnesiella, Bacteroides, and Flavonifractor were modulated at various degrees. Evaluation of serum biomarkers in mice at the end of spirulina intervention showed reduced the oxidative stress and the blood lipid levels and increased the level of appetite controlling hormone leptin in a dose-response manner, which exhibited the significant correlation with differentially abundant microbiota taxa in the cecum. These findings provide direct evidences of dose-related modulation of gut microbiota and physiological states by spirulina, engendering its future mechanistic investigation of spirulina as potential sources of prebiotics for beneficial health effects via the interaction with gut microbiota.
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Affiliation(s)
- Jinlu Hu
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Yaguang Li
- Department of General Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Sepideh Pakpour
- Faculty of Applied Science, University of British Columbia, Kelowna, BC, Canada
| | - Sufang Wang
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Zhenhong Pan
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China.,Institute of Medical Research, Northwestern Polytechnical University, Xi'an, China
| | - Junhong Liu
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China.,Institute of Medical Research, Northwestern Polytechnical University, Xi'an, China
| | - Qingxia Wei
- Department of General Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Princess Margaret Cancer Center, University of Health Network, Toronto, ON, Canada
| | - Junjun She
- Department of General Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Huaixing Cang
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Rui Xue Zhang
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China.,Department of General Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Institute of Medical Research, Northwestern Polytechnical University, Xi'an, China
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Wang H, Wu J, Zhang RX. [The effect of NK-1R-siRNA on expression of inflammatory factors in allergic rhinitis]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 54:280-285. [PMID: 30991778 DOI: 10.3760/cma.j.issn.1673-0860.2019.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the effect of neurokinin-1 receptor small interfering RNA (NK-1R-siRNA) on the expression of inflammation factors in allergic rhinitis (AR). Methods: Twenty-four male SD rats were divided into three groups randomly (by random number table methord): NK-1R-siRNA group, negative control siRNA (NC-siRNA) group and saline group, with 8 rats in each group. SD rats were sensitized and challenged with ovalbumin (OVA) to induce AR. The rats were treated intranasally with NK-1R-siRNA, NC-siRNA or saline before and during the challenge period. The AR symptoms were observed. The levels of OVA-specific IgE were measured by enzyme-linked immunosorbent assay (ELISA). The levels of NK-1R expression in the nasal mucosal tissues were determined by real time PCR (RT-PCR) and immunohistochemistry. Antibody array was used in studying the expression of inflammation cell factors in nasal mucosa. SPSS 11.0 software was used for one-factor analysis of variance. Results: Compared with saline group, AR symptoms relived significantly in NK-1R-siRNA group (nose rubbing (31.4±8.9)/15 min vs (69.5±17.9)/15 min, sneezing (7.2±1.9)/15 min vs (23.7±9.2)/15 min, nasal secretions (7.1±2.3) mg vs (24.1±4.4) mg, t value was 38.100, 17.125, 16.837, respectively, all P<0.01), and the level of serum OVA-specific IgE was also reduced ((8.56±0.73) ng/ml vs (18.05±1.22) ng/ml, t=9.787, P<0.01). The RT-PCR and immunohistochemistry results showed that the expression of NK-1R in nasal mucosa of NK-1R-siRNA group was remarkably reduced than that of the NC-siRNA group and saline group. After the treatment of NK-1R-siRNA, the expression of interleukin (IL) 1α, IL-1β, IL-4, IL-6 and IL-13 decreased, while the interferon-γ (IFN-γ) and IL-10 increased. Conclusion: NK-1R-siRNA could regulate the release of inflammation factors in AR nasal mucosa, thus relive the allergic inflammation.
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Affiliation(s)
- H Wang
- Department of Otolaryngology, Huadong Hospital, Fudan University, Shanghai 200040, China
| | - J Wu
- Department of Otolaryngology, Huadong Hospital, Fudan University, Shanghai 200040, China
| | - R X Zhang
- Department of Otolaryngology, Huadong Hospital, Fudan University, Shanghai 200040, China
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Wang Z, Zhang RX, Zhang C, Dai C, Ju X, He R. Fabrication of Stable and Self-Assembling Rapeseed Protein Nanogel for Hydrophobic Curcumin Delivery. J Agric Food Chem 2019; 67:887-894. [PMID: 30608682 DOI: 10.1021/acs.jafc.8b05572] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Food-dervied biopolymer nanogels have recently received considerable attention as favorable carrier systems for nutraceuticals and drugs. In the present study, new biocompatible and self-assembled acylated rapeseed protein isolate (ARPI)-based nanogels were fabricated for potential hydrophobic drug delivery by chemical acylation and heat-induced protein denaturation. The effects of the ARPI concentration, pH, heat temperature, and heat time on the physiochemical properties of self-assembled ARPI nanogels were investigated. The optimized ARPI nanogels were characterized by a hydrodiameter of 170 nm in size, spherical morphology, and light core-dark shell structure. In comparison to native rapeseed protein isolates and ARPI without the heat treatment, ARPI nanogels as a result of dual acylation and heat processes exhibited significantly altered spatial secondary and tertiary structures, increased surface hydrophobicity, and decreased free sulfhydryl contents of the protein. Such properties endow amphilic ARPI with the self-aggregating ability, resulting in the hydrophobic core with formations of covalent disulfide bonds and the hydrophilic shell with succinyl moieties exposed to the water side. Such a cross-linked structure allowed for ARPI nanogels to be resistant against a broad array of pH and ionic strength as well as lyophilization and dilution. ARPI nanogels demonstrated 95% encapsulation efficiency of hydrophobic compound curcumin and significantly increased its anticancer activity against multiple cancer cell lines.
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Affiliation(s)
- Zhigao Wang
- School of Food Science and Technology , Jiangnan University , Wuxi , Jiangsu 214122 People's Republic of China
| | - Rui Xue Zhang
- School of Life Sciences , Northwestern Polytechnical University , Xi'an , Shaanxi 710072 , People's Republic of China
| | - Cheng Zhang
- Key Laboratory of Grains and Oils Quality Control and Processing, College of Food Science and Engineering , Nanjing University of Finance and Economics , Nanjing , Jiangsu 210003 , People's Republic of China
| | - Caixia Dai
- Key Laboratory of Grains and Oils Quality Control and Processing, College of Food Science and Engineering , Nanjing University of Finance and Economics , Nanjing , Jiangsu 210003 , People's Republic of China
| | - Xingrong Ju
- School of Food Science and Technology , Jiangnan University , Wuxi , Jiangsu 214122 People's Republic of China
- Key Laboratory of Grains and Oils Quality Control and Processing, College of Food Science and Engineering , Nanjing University of Finance and Economics , Nanjing , Jiangsu 210003 , People's Republic of China
| | - Rong He
- Key Laboratory of Grains and Oils Quality Control and Processing, College of Food Science and Engineering , Nanjing University of Finance and Economics , Nanjing , Jiangsu 210003 , People's Republic of China
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Zhang LM, Yang YN, Zhang RX, Luo L, Tan JF, Zhou L, Wang Q, Zhou CQ. [Comparison of the etiological constitution of two and three or more recurrent miscarriage]. Zhonghua Fu Chan Ke Za Zhi 2019; 53:855-859. [PMID: 30585025 DOI: 10.3760/cma.j.issn.0529-567x.2018.12.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To compare the etiological constitution of recurrent miscarriage (RM) between patients with consecutive two and three or more miscarriages through combining the routine examination results and embryonic karyotype. Methods: Patients with a history of two or more consecutive clinical miscarriages (≤12 weeks of gestation) consulting in the RM clinic of the First Affiliated Hospital of Sun Yat-sen University from March 2011 to January 2016 were collected. Six hundred and ninety-six with detailed history recorded, routine clinical examinations of RM and at least once embryonic karyotype were ultimately enrolled in this study. Their etiological constitution of RM were analyzed in groups of consecutive two and three or more miscarriage. The etiologies of RM in analysis consisted of women age, body mass index (BMI) , chromosome abnormalities of couples, uterine abnormalities, endocrinology abnormalities and antiphospholipid syndrome (APS) . Results: (1) Among 696 patients, the abnormal embryonic karyotypes was 60.6% (422/696) and routine RM etiologies was 32.2% (224/696) , leaving the ratio of unexplained RM was only 29.0% (202/696). (2) A total of 717 embryo karyotype were found in 696 patients, included21 cases with twice embryo karyotype results the percentage of normal embryo was 39.7% (285/717) , while abnormal ones was 60.3% (432/717). Among the types of abnormal karyotype, the most common ones (>10%) were trisomy 16 (19.2%, 83/432) , monosome X (11.3%, 49/432) and trisomy 22 (10.9%, 47/432). (3) Among the 696 RM patients, the number of two and three or more miscarriages were respectively 446 (64.1%, 446/696) and 250 (35.9%, 250/696). Comparing groups of three or more miscarriages with two miscarriages, there were significant differencein older age as well as uterine adhesion (P<0.05). But no difference was found in body mass index (BMI) , the rates of chromosome abnormalities of couples, uterine abnormalities except uterine adhesion, endocrinology abnormalities and APS (all P>0.05) between two groups. Conclusions: The abnormal embryonic karyotype is the most common cause of first-trimester RM. The etiological constitution of two and three or more recurrent miscarriages is accordant, suggesting that routine clinical examination and the embryonic karyotype should be started following two consecutive clinical early miscarriages.
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Affiliation(s)
- L M Zhang
- Center for Reproductive Medicine, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
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Huang Y, Zhao RW, Zhang RX, Yu HZ, SiTu HR, Liu CH, Wang H, Zhou LL, Zhuang WJ, Jin ZC, Pang ZH. [Application of image-guided system in endoscopic sinus and skull base surgery]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 32:1856-1859. [PMID: 30550126 DOI: 10.13201/j.issn.1001-1781.2018.24.003] [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] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Indexed: 11/12/2022]
Abstract
Objective:To evaluate the applicative value of image-guided system in endoscopic sinus and skull base surgeries. Method:A total of 103 endoscopic surgical procedures were performed.All these procedures were conducted with the utilization of image-guided system, among which there were 92 cases of sinonasal-skull base surgery(including nasal sinuses resection of benign and malignant tumors involving skull base lesions, the cumulative orbital lesion resection of nasal sinus lesions, etc. ), 6 repair of cerebrospinal fluid leak, 3 pituitary adenoma resection, 2 traumatic neuropathy optic nerve decompression. Result:With the utilization of image-guided system, all patients had successful surgery without major and minor complications. The image-guided system provided high precision with short registration time. Conclusion:Image-guided system can help the surgeon to identify accurately the vital anatomic landmarks of sinus and skull base, improving surgical accuracy and safety as well as reducing or avoiding the intraoperative and postoperative complications.
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Affiliation(s)
- Y Huang
- Department of Otorhinolaryngology Head and Neck Surgery, Huadong Hospital, Fudan University, Shanghai, 200040,China
| | - R W Zhao
- Department of Otorhinolaryngology Head and Neck Surgery, Huadong Hospital, Fudan University, Shanghai, 200040,China
| | - R X Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Huadong Hospital, Fudan University, Shanghai, 200040,China
| | - H Z Yu
- Department of Otorhinolaryngology Head and Neck Surgery, Huadong Hospital, Fudan University, Shanghai, 200040,China
| | - H R SiTu
- Department of Otorhinolaryngology Head and Neck Surgery, Huadong Hospital, Fudan University, Shanghai, 200040,China
| | - C H Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Huadong Hospital, Fudan University, Shanghai, 200040,China
| | - H Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Huadong Hospital, Fudan University, Shanghai, 200040,China
| | - L L Zhou
- Department of Otorhinolaryngology Head and Neck Surgery, Huadong Hospital, Fudan University, Shanghai, 200040,China
| | - W J Zhuang
- Department of Otorhinolaryngology Head and Neck Surgery, Huadong Hospital, Fudan University, Shanghai, 200040,China
| | - Z C Jin
- Department of Otorhinolaryngology Head and Neck Surgery, Huadong Hospital, Fudan University, Shanghai, 200040,China
| | - Z H Pang
- Department of Otorhinolaryngology Head and Neck Surgery, Huadong Hospital, Fudan University, Shanghai, 200040,China
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Wang Z, Zhang RX, Zhang T, He C, He R, Ju X, Wu XY. In Situ Proapoptotic Peptide-Generating Rapeseed Protein-Based Nanocomplexes Synergize Chemotherapy for Cathepsin-B Overexpressing Breast Cancer. ACS Appl Mater Interfaces 2018; 10:41056-41069. [PMID: 30387987 DOI: 10.1021/acsami.8b14001] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Intracellular activation of nanomaterials within cancer cells presents a powerful means to enhance anticancer specificity and efficacy. In light of upregulated lysosomal protease cathepsin-B (CathB) in many types of invasive cancer cells, herein, we exploit CathB-catalyzed biodegradation of acetylated rapeseed protein isolate (ARPI) to design polymer-drug nanocomplexes that can produce proapoptotic peptides in situ and synergize chemotherapy. ARPI forms nanocomplexes with chitosan (CS) and anticancer drug doxorubicin (DOX) [DOX-ARPI/CS nanoparticles (NPs)] by ionic self-assembly. The dual acidic pH- and CathB-responsive properties of the nanocomplexes and CathB-catalyzed biodegradation of ARPI enable efficient lysosomal escape and nuclei trafficking of released DOX, resulting in elevated cytotoxicity in CathB-overexpressing breast cancer cells. The ARPI-derived bioactive peptides exhibit synergistic anticancer effect with DOX by regulating pro- and antiapoptotic-relevant proteins ( p53, Bax, Bcl-2, pro-caspase-3) at mitochondria. In an orthotopic breast tumor model of CathB-overexpressing breast cancer, DOX-ARPI/CS NPs remarkably inhibit tumor growth, enhance tumor cell apoptosis and prolong host survival without eliciting any systemic toxicity. These results suggest that exploitation of multifunctional biomaterials to specifically produce anticancer agents inside cancer cells and trigger drug release to the subcellular target sites is a promising strategy for designing effective synergistic nanomedicines with minimal off-target toxicity.
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Affiliation(s)
- Zhigao Wang
- School of Food Science and Technology , Jiangnan University , Wuxi 214122 , People's Republic of China
- Advanced Pharmaceutics and Drug Delivery Laboratory, Leslie Dan Faculty of Pharmacy , University of Toronto , 144 College Street , Toronto M5S 3M2 , Canada
| | - Rui Xue Zhang
- Advanced Pharmaceutics and Drug Delivery Laboratory, Leslie Dan Faculty of Pharmacy , University of Toronto , 144 College Street , Toronto M5S 3M2 , Canada
- School of Life Sciences , Northwestern Polytechnical University , Xi'an , Shaanxi 710072 , People's Republic of China
| | - Tian Zhang
- Advanced Pharmaceutics and Drug Delivery Laboratory, Leslie Dan Faculty of Pharmacy , University of Toronto , 144 College Street , Toronto M5S 3M2 , Canada
| | - Chunsheng He
- Advanced Pharmaceutics and Drug Delivery Laboratory, Leslie Dan Faculty of Pharmacy , University of Toronto , 144 College Street , Toronto M5S 3M2 , Canada
| | - Rong He
- College of Food Science and Engineering, Collaborative Innovation Center for Modern Grain Circulation and Safety, Key Laboratory of Grains and Oils Quality Control and Processing , Nanjing University of Finance and Economics , Nanjing 210003 , People's Republic China
| | - Xingrong Ju
- School of Food Science and Technology , Jiangnan University , Wuxi 214122 , People's Republic of China
- College of Food Science and Engineering, Collaborative Innovation Center for Modern Grain Circulation and Safety, Key Laboratory of Grains and Oils Quality Control and Processing , Nanjing University of Finance and Economics , Nanjing 210003 , People's Republic China
| | - Xiao Yu Wu
- Advanced Pharmaceutics and Drug Delivery Laboratory, Leslie Dan Faculty of Pharmacy , University of Toronto , 144 College Street , Toronto M5S 3M2 , Canada
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Zhang RX. [Application of image guided system in minimally invasive surgery of nasal endoscopy]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 32:1607-1609. [PMID: 30400680 DOI: 10.13201/j.issn.1001-1781.2018.21.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Indexed: 11/12/2022]
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Zhang RX. [The role of substance P, gene regulation and PM2.5 in the pathogenesis of allergic rhinitis]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 53:725-729. [PMID: 30347529 DOI: 10.3760/cma.j.issn.1673-0860.2018.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Affiliation(s)
- R X Zhang
- Department of Otorhinolaryngology, Huadong Hospital, Fudan University, Shanghai 200040, China
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Zhang RX, Li J, Zhang T, Amini MA, He C, Lu B, Ahmed T, Lip H, Rauth AM, Wu XY. Importance of integrating nanotechnology with pharmacology and physiology for innovative drug delivery and therapy - an illustration with firsthand examples. Acta Pharmacol Sin 2018; 39:825-844. [PMID: 29698389 DOI: 10.1038/aps.2018.33] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 02/19/2018] [Indexed: 12/13/2022] Open
Abstract
Nanotechnology has been applied extensively in drug delivery to improve the therapeutic outcomes of various diseases. Tremendous efforts have been focused on the development of novel nanoparticles and delineation of the physicochemical properties of nanoparticles in relation to their biological fate and functions. However, in the design and evaluation of these nanotechnology-based drug delivery systems, the pharmacology of delivered drugs and the (patho-)physiology of the host have received less attention. In this review, we discuss important pharmacological mechanisms, physiological characteristics, and pathological factors that have been integrated into the design of nanotechnology-enabled drug delivery systems and therapies. Firsthand examples are presented to illustrate the principles and advantages of such integrative design strategies for cancer treatment by exploiting 1) intracellular synergistic interactions of drug-drug and drug-nanomaterial combinations to overcome multidrug-resistant cancer, 2) the blood flow direction of the circulatory system to maximize drug delivery to the tumor neovasculature and cells overexpressing integrin receptors for lung metastases, 3) endogenous lipoproteins to decorate nanocarriers and transport them across the blood-brain barrier for brain metastases, and 4) distinct pathological factors in the tumor microenvironment to develop pH- and oxidative stress-responsive hybrid manganese dioxide nanoparticles for enhanced radiotherapy. Regarding the application in diabetes management, a nanotechnology-enabled closed-loop insulin delivery system was devised to provide dynamic insulin release at a physiologically relevant time scale and glucose levels. These examples, together with other research results, suggest that utilization of the interplay of pharmacology, (patho-)physiology and nanotechnology is a facile approach to develop innovative drug delivery systems and therapies with high efficiency and translational potential.
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Zhang RX, Zhang T, Chen K, Cheng J, Lai P, Rauth AM, Pang KS, Wu XY. Sample Extraction and Simultaneous Chromatographic Quantitation of Doxorubicin and Mitomycin C Following Drug Combination Delivery in Nanoparticles to Tumor-bearing Mice. J Vis Exp 2017. [PMID: 29053672 DOI: 10.3791/56159] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Combination chemotherapy is frequently used in the clinic for cancer treatment; however, associated adverse effects to normal tissue may limit its therapeutic benefit. Nanoparticle-based drug combination has been shown to mitigate the problems encountered by free drug combination therapy. Our previous studies have shown that the combination of two anticancer drugs, doxorubicin (DOX) and mitomycin C (MMC), produced a synergistic effect against both murine and human breast cancer cells in vitro. DOX and MMC co-loaded polymer-lipid hybrid nanoparticles (DMPLN) bypassed various efflux transporter pumps that confer multidrug resistance and demonstrated enhanced efficacy in breast tumor models. Compared to conventional solution forms, such superior efficacy of DMPLN was attributed to the synchronized pharmacokinetics of DOX and MMC and increased intracellular drug bioavailability within tumor cells enabled by the nanocarrier PLN. To evaluate the pharmacokinetics and bio-distribution of co-administered DOX and MMC in both free solution and nanoparticle forms, a simple and efficient multi-drug analysis method using reverse-phase high performance liquid chromatography (HPLC) was developed. In contrast to previously reported methods that analyzed DOX or MMC individually in the plasma, this new HPLC method is able to simultaneously quantitate DOX, MMC and a major cardio-toxic DOX metabolite, doxorubicinol (DOXol), in various biological matrices (e.g., whole blood, breast tumor, and heart). A dual fluorescent and ultraviolet absorbent probe 4-methylumbelliferone (4-MU) was used as an internal standard (I.S.) for one-step detection of multiple drug analysis with different detection wavelengths. This method was successfully applied to determine the concentrations of DOX and MMC delivered by both nanoparticle and solution approaches in whole blood and various tissues in an orthotopic breast tumor murine model. The analytical method presented is a useful tool for pre-clinical analysis of nanoparticle-based delivery of drug combinations.
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Affiliation(s)
- Rui Xue Zhang
- Department of Pharmaceutical Sciences, University of Toronto
| | - Tian Zhang
- Department of Pharmaceutical Sciences, University of Toronto
| | - King Chen
- Department of Pharmaceutical Sciences, University of Toronto
| | - Ji Cheng
- Department of Pharmaceutical Sciences, University of Toronto
| | - Paris Lai
- Department of Pharmaceutical Sciences, University of Toronto
| | - Andrew M Rauth
- Departments of Medical Biophysics and Radiation Oncology, University of Toronto, Ontario Cancer Institute, University Health Network
| | - K Sandy Pang
- Department of Pharmaceutical Sciences, University of Toronto
| | - Xiao Yu Wu
- Department of Pharmaceutical Sciences, University of Toronto;
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Wang Q, Wang Q, Wang SF, Jiao LJ, Zhang RX, Zhong Y, Zhang J, Xu L. Oral Chinese herbal medicine as maintenance treatment after chemotherapy for advanced non-small-cell lung cancer: a systematic review and meta-analysis. ACTA ACUST UNITED AC 2017; 24:e269-e276. [PMID: 28874897 DOI: 10.3747/co.24.3561] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND The concept of maintenance therapy in cancer treatment is currently under debate because of modest survival benefits, added toxicity, economic considerations, and quality-of-life concerns. Traditional Chinese Medicine (tcm) is widely used in China for cancer patients, offering the advantages of low toxicity and enhancement of quality of life. However, no systematic reviews or meta-analyses have assessed the role of tcm as maintenance treatment for non-small-cell lung carcinoma. METHODS We searched the Chinese Biomedical Literature Database, the China National Knowledge Infrastructure, PubMed, embase, and the Cochrane Library databases for all eligible studies. The endpoints were overall survival (os), progression-free survival (pfs), the 1-year and 2-year survival rates, and performance status. Our meta-analysis used a fixed-effects model and a random-effects model for heterogeneity in the Stata software application (version 11.0: StataCorp LP, College Station, TX, U.S.A.), with the results expressed as hazard ratios (hrs) or risk ratios (rrs), with their corresponding 95% confidence intervals (95% cis). RESULTS Sixteen randomized studies representing 1150 patients met the inclusion criteria. Compared with best supportive care, observation, or placebo, tcm as maintenance treatment was associated with a significant increase in os (hr: 0.49; 95% ci: 0.35 to 0.68; p < 0.001), pfs (hr: 0.66; 95% ci: 0.51 to 0.84; p = 0.001), and 2-year survival rate (rr: 0.63; 95% ci: 0.44 to 0.92, p = 0.017), and a significant improvement in performance status (rr: 0.68; 95% ci: 0.61 to 0.75; p < 0.001). CONCLUSIONS For patients who show non-progression-including stable disease, partial response, or complete response-after first-line chemotherapy, including those with poor quality of life, oral Chinese herbal medicine can be considered an efficient and safe maintenance therapy strategy.
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Affiliation(s)
- Q Wang
- Department of Oncology, Yueyang Hospital of Integrated Traditional Chinese Medicine and Western Medicine Affiliated to Shanghai University of Traditional Chinese Medicine.,Department of Oncology, Shanghai Hospital of Integrated Traditional Chinese Medicine and Western Medicine Affiliated to Shanghai University of Traditional Chinese Medicine
| | - Q Wang
- Department of Oncology, Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, and
| | - S F Wang
- Department of Thoracic Surgery, Fudan University Shanghai Cancer Center, Shanghai, P.R.C.; and
| | - L J Jiao
- Department of Oncology, Yueyang Hospital of Integrated Traditional Chinese Medicine and Western Medicine Affiliated to Shanghai University of Traditional Chinese Medicine
| | - R X Zhang
- Center for Integrative Medicine, School of Medicine, University of Maryland, Baltimore, MD, U.S.A
| | - Y Zhong
- Center for Integrative Medicine, School of Medicine, University of Maryland, Baltimore, MD, U.S.A
| | - J Zhang
- Department of Thoracic Surgery, Fudan University Shanghai Cancer Center, Shanghai, P.R.C.; and
| | - L Xu
- Department of Oncology, Yueyang Hospital of Integrated Traditional Chinese Medicine and Western Medicine Affiliated to Shanghai University of Traditional Chinese Medicine
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Liu L, Li XB, Hu ZHM, Zi XH, Zhao X, Xie YZ, Huang SHX, Xia K, Tang BS, Zhang RX. Phenotypes and cellular effects of GJB1 mutations causing CMT1X in a cohort of 226 Chinese CMT families. Clin Genet 2017; 91:881-891. [PMID: 27804109 DOI: 10.1111/cge.12913] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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: 08/02/2016] [Revised: 10/26/2016] [Accepted: 10/28/2016] [Indexed: 12/23/2022]
Abstract
The aim of this study is to explore the phenotypic and genotypic features of X-linked Charcot-Marie-Tooth (CMT) disease in the mainland of China and to study the cellular effects of six novel Gap junction protein beta-1 variants. We identified 25 missense and 1 non-sense mutations of GJB1 in 31 unrelated families out of 226 CMT families. The frequency of GJB1 mutations was 13.7% of the total and 65% of intermediate CMT. Six novel GJB1 variants (c.5A>G, c.8G>A, c.242T>C, c.269T>C, c.317T>C and c.434T>G) were detected in six unrelated intermediate CMT families. Fluorescence revealed that HeLa cells transfected with EGFP-GJB1-V74M, EGFP-GJB1-L81P or EGFP-GJB1-L90P had diffuse endoplasmic reticulum staining, HeLa cells transfected with EGFP-GJB1-L106P had diffuse intracellular staining, and HeLa cells transfected with EGFP-GJB1-N2S had cytoplasmic and nuclear staining. The distribution of Cx32 in HeLa cells transfected with EGFP-GJB1-F145C was similar to that of those transfected with wild-type (WT). These six variants resulted in a higher percentage of apoptosis than did WT as detected by flow cytometry and Hoechst staining. In conclusion, mutation screening should be first performed in intermediate CMT patients, especially those with additional features. The novel GJB1 variants c.5A>G, c.8G>A, c.242T>C and c.269T>C are considered pathogenic, and c.317T>C and c.434T>G are classified as probably pathogenic.
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Affiliation(s)
- L Liu
- Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - X B Li
- Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Z H M Hu
- National Key Lab of Medical Genetics, Central South University, Changsha, China
| | - X H Zi
- Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - X Zhao
- Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Y Z Xie
- Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - S H X Huang
- Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - K Xia
- National Key Lab of Medical Genetics, Central South University, Changsha, China
| | - B S Tang
- National Key Lab of Medical Genetics, Central South University, Changsha, China
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
| | - R X Zhang
- Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha, China
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Chen WJ, Sun XF, Zhang RX, Xu MJ, Dou TH, Zhang XB, Zhong M, Yang WQ, Liu L, Lu XY, Zhu CQ. Hypertriglyceridemic acute pancreatitis in emergency department: Typical clinical features and genetic variants. J Dig Dis 2017; 18:359-368. [PMID: 28548292 DOI: 10.1111/1751-2980.12490] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 05/18/2017] [Accepted: 05/23/2017] [Indexed: 12/11/2022]
Abstract
OBJECTIVE To investigate the clinical characteristics of patients with hypertriglyceridemic acute pancreatitis (HTGAP), and the molecular foundation contributing to hypertriglyceridemia in such patients. METHODS Clinical data from 329 patients with acute pancreatitis (AP) were analyzed. The patients were divided into the HTGAP group, with fasting serum triglyceride (TG) levels ≥500 mg/dL (5.65 mmol/L), and the non-HTGAP (NHTGAP) group. Targeted next-generation sequencing was applied to 11 HTGAP patients to identify the genetic mutations associated with hypertriglyceridemia, including apolipoprotein A-V (APOA5), APOC2, APOC3 and APOE, BLK, LPL, GPIHBP1 and LMF1. RESULTS Patients in the HTGAP group, compared with those in the NHTGAP group, had a higher mortality rate (7.5% vs 0.7%, P = 0.001), more commonly seen severe AP (17.5% vs 5.2%, P = 0.004) as well as a higher recurrence rate (32.4% vs 19.9%, P = 0.070). DNA sequencing showed that two patients carried the same compound of p.G185C and p.V153M heterozygous mutations located in the APOA5 gene. Two patients carried a homozygous variation of p.C14F, in the GPIHBP1 gene. One patient had a homozygous variation of p.R176C in the APOE gene. And a rare heterozygous LMF1 gene mutation of p.P562R was detected in two patients. CONCLUSIONS HTGAP was significantly severe than NHTGAP, with a high recurrence rate. Genetic information may be useful in the clinical setting for the investigation of the pathogenesis of HTGAP and its interventions.
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Affiliation(s)
- Wan Jun Chen
- Department of Emergency Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xiao Fan Sun
- Outpatient and Emergency Department, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Rui Xue Zhang
- Department of Emergency Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Min Jie Xu
- State Key Laboratory of Genetic Engineering, Department of Microbiology and Microbial Engineering, School of Life Sciences, Fudan University, Shanghai, China
| | - Tong Hai Dou
- State Key Laboratory of Genetic Engineering, Department of Microbiology and Microbial Engineering, School of Life Sciences, Fudan University, Shanghai, China
| | - Xiao Bin Zhang
- Department of Emergency Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Min Zhong
- Department of Emergency Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Wei Qiang Yang
- Department of Emergency Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Li Liu
- Department of Emergency Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xiao Ye Lu
- Department of Emergency Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Chang Qing Zhu
- Department of Emergency Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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Zhang RX, Ahmed T, Li LY, Li J, Abbasi AZ, Wu XY. Design of nanocarriers for nanoscale drug delivery to enhance cancer treatment using hybrid polymer and lipid building blocks. Nanoscale 2017; 9:1334-1355. [PMID: 27973629 DOI: 10.1039/c6nr08486a] [Citation(s) in RCA: 96] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Polymer-lipid hybrid nanoparticles (PLN) are an emerging nanocarrier platform made from building blocks of polymers and lipids. PLN integrate the advantages of biomimetic lipid-based nanoparticles (i.e. solid lipid nanoparticles and liposomes) and biocompatible polymeric nanoparticles. PLN are constructed from diverse polymers and lipids and their numerous combinations, which imparts PLN with great versatility for delivering drugs of various properties to their nanoscale targets. PLN can be classified into two types based on their hybrid nanoscopic structure and assembly methods: Type-I monolithic matrix and Type-II core-shell systems. This article reviews the history of PLN development, types of PLN, lipid and polymer candidates, fabrication methods, and unique properties of PLN. The applications of PLN in delivery of therapeutic or imaging agents alone or in combination for cancer treatment are summarized and illustrated with examples. Important considerations for the rational design of PLN for advanced nanoscale drug delivery are discussed, including selection of excipients, synthesis processes governing formulation parameters, optimization of nanoparticle properties, improvement of particle surface functionality to overcome macroscopic, microscopic and cellular biological barriers. Future directions and potential clinical translation of PLN are also suggested.
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Affiliation(s)
- Rui Xue Zhang
- Advanced Pharmaceutics and Drug Delivery Laboratory, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON, CanadaM5S 3M2.
| | - Taksim Ahmed
- Advanced Pharmaceutics and Drug Delivery Laboratory, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON, CanadaM5S 3M2.
| | - Lily Yi Li
- Advanced Pharmaceutics and Drug Delivery Laboratory, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON, CanadaM5S 3M2.
| | - Jason Li
- Advanced Pharmaceutics and Drug Delivery Laboratory, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON, CanadaM5S 3M2.
| | - Azhar Z Abbasi
- Advanced Pharmaceutics and Drug Delivery Laboratory, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON, CanadaM5S 3M2.
| | - Xiao Yu Wu
- Advanced Pharmaceutics and Drug Delivery Laboratory, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON, CanadaM5S 3M2.
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Zhang RX, Lu C, Zhang YL, Liu LF. [Papillary thyroid microcarcinoma with huge lymph node metastasis and squamous cell cancerization:a case report]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2016; 30:1406-1408. [PMID: 29798469 DOI: 10.13201/j.issn.1001-1781.2016.17.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Indexed: 11/12/2022]
Abstract
We report a 75 years old woman with papillary thyroid microcarcinoma,and squamous cell cancer was found in her lymph node metastases.The patient was characterized by a cervical mass,which was diagnosed as papillary thyroid microcarcinoma by fine needle aspiration.Total thyroidectomy+right radical neck dissection+Ⅵ bilateral neck lymph node dissection were performed for the patient.
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Xia J, Ma YX, Tian H, Zhang RX. [Extended inferior meatal approach by reversing inferior turbinate for maxillary sinus and adjacent lesions]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2016; 30:1271-1275. [PMID: 29797968 DOI: 10.13201/j.issn.1001-1781.2016.16.003] [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: 06/24/2016] [Indexed: 11/12/2022]
Abstract
Objective:The aim of this study is to explore the feasibility and results of surgical removal of maxillary sinus and adjacent lesions via extended inferior meatal approach by reversing inferior turbinate.Method:Among these 28 cases,there were 9 cases of maxillary cysts(4 of which with oroantral fistula),2 cases of odontogenic maxillary sinusitis(1 of which with oroantral fistula),3 cases of maxillary sinus cysts,2 cases of antrochoanal polyps,5 cases of maxillary sinus inverted papilloma,1 case of maxillary sinus inverted papilloma with infiltrative squamous cell carcinoma(moderately differentiated),4 cases of inferior orbital fracture,1 case of anterior maxillary sinus wall fracture,and 1 case of infratemporal fossa cysts with fungal maxillary sinusitis.All operations were conducted via extended inferior meatal approach.Result:All patients did not have intraoperative complications,and were free of recurrence after the 3 to 36 months postoperative follow-up.Conclusion:The extended inferior meatal approach by reversing inferior turbinate can deal with all aspects of the maxillary sinus and retromaxillary lesions.This procedure has a clear vision and high successful rate.
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Affiliation(s)
- J Xia
- Department of Otorhinolaryngology Head and Neck Surgery,Beijing Friendship Hospital,Capital Medical University,Beijing,100050,China
| | - Y X Ma
- Department of Otorhinolaryngology Head and Neck Surgery,Beijing Friendship Hospital,Capital Medical University,Beijing,100050,China
| | - H Tian
- Department of Otorhinolaryngology Head and Neck Surgery,Beijing Friendship Hospital,Capital Medical University,Beijing,100050,China
| | - R X Zhang
- Department of Otorhinolaryngology Head and Neck Surgery,Beijing Friendship Hospital,Capital Medical University,Beijing,100050,China
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Zhang RX, Yang HQ, Xu Y, Lyu TW, Cao H, Ning LF, Zhou CR, Fan WG. [Effects of different mulching materials on nitrate metabolism in soil of apple root-zone in summer and autumn.]. Ying Yong Sheng Tai Xue Bao 2016; 27:2452-2458. [PMID: 29733131 DOI: 10.13287/j.1001-9332.201608.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
This study explored the effects of mulching straw mat, agricultural carpet, transparent-plastic film and horticultural fabric on nitrification-denitrification, nitrate reductase (NR), nitrite reductase (NiR), ammonium, nitrate and nitrite nitrogen in root-zone soil grown with three-year old apple trees (Malus domestica cv. Starkrimson) during summer and autumn. Results showed that the four treatments decreased nitrification intensity in summer soil, NiR activity in summer-autumn soil and the variation coefficient of nitrification-denitrification intensity and NR in both summer and autumn soil. The treatments increased the denitrification intensity, NR activity, ammonium nitrogen contents in summer-autumn soil and ammonium nitrogen contents in autumn soil. Straw mat treatment increased denitrification intensity and nitrate nitrogen contents in both summer and autumn soil and decreased the activity of NR and NiR in summer soil. The coefficient of variation of nitrification-denitrification intensity and NR activity treated by mulching straw mat was lower than those in the other treatments in both summer and autumn soil. Agricultural carpet increased the NR and NiR activity in summer soil, the nitrate nitrogen contents in summer-autumn soil and the denitrification intensity in autumn soil and decreased denitrification intensity in summer soil. Transparent-plastic film increased the nitrite nitrogen contents in summer soil, the contents of nitrate nitrogen in summer-autumn soil, the nitrification intensity and NiR activity in autumn soil, and decreased nitrate nitrogen contents in summer soil. Horticultural fabric increased denitrification intensity in summer soil, nitrification intensity in summer-autumn and autumn soil and the nitrate nitrogen contents in autumn soil. The four mulching treatments all promoted plant growth. In the four mulching treatments, the new shoot and trunk thickening growth were more under straw mat and horticultural fabric treatments. The four mulching treatments had different effects on nitrate metabolism in summer and autumn soil, but they were able to stabilize the soil nitrate metabolism and transformation. Among the treatments, straw mat had the best stable effect.
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Affiliation(s)
- Rui Xue Zhang
- College of Horticulture Science and Engineering, Shandong Agricultural University/State Key Laboratory of Crop Biology, Tai'an 271018, Shandong, China
| | - Hong Qiang Yang
- College of Horticulture Science and Engineering, Shandong Agricultural University/State Key Laboratory of Crop Biology, Tai'an 271018, Shandong, China
| | - Ying Xu
- College of Horticulture Science and Engineering, Shandong Agricultural University/State Key Laboratory of Crop Biology, Tai'an 271018, Shandong, China
| | - Ting Wen Lyu
- College of Horticulture Science and Engineering, Shandong Agricultural University/State Key Laboratory of Crop Biology, Tai'an 271018, Shandong, China
| | - Hui Cao
- College of Horticulture Science and Engineering, Shandong Agricultural University/State Key Laboratory of Crop Biology, Tai'an 271018, Shandong, China
| | - Liu Fang Ning
- College of Horticulture Science and Engineering, Shandong Agricultural University/State Key Laboratory of Crop Biology, Tai'an 271018, Shandong, China
| | - Chun Ran Zhou
- College of Horticulture Science and Engineering, Shandong Agricultural University/State Key Laboratory of Crop Biology, Tai'an 271018, Shandong, China
| | - Wei Guo Fan
- College of Horticulture Science and Engineering, Shandong Agricultural University/State Key Laboratory of Crop Biology, Tai'an 271018, Shandong, China
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Zhang RX, Wong HL, Xue HY, Eoh JY, Wu XY. Nanomedicine of synergistic drug combinations for cancer therapy - Strategies and perspectives. J Control Release 2016; 240:489-503. [PMID: 27287891 DOI: 10.1016/j.jconrel.2016.06.012] [Citation(s) in RCA: 213] [Impact Index Per Article: 26.6] [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: 01/29/2016] [Revised: 05/27/2016] [Accepted: 06/06/2016] [Indexed: 12/26/2022]
Abstract
Nanomedicine of synergistic drug combinations has shown increasing significance in cancer therapy due to its promise in providing superior therapeutic benefits to the current drug combination therapy used in clinical practice. In this article, we will examine the rationale, principles, and advantages of applying nanocarriers to improve anticancer drug combination therapy, review the use of nanocarriers for delivery of a variety of combinations of different classes of anticancer agents including small molecule drugs and biologics, and discuss the challenges and future perspectives of the nanocarrier-based combination therapy. The goal of this review is to provide better understanding of this increasingly important new paradigm of cancer treatment and key considerations for rational design of nanomedicine of synergistic drug combinations for cancer therapy.
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Affiliation(s)
- Rui Xue Zhang
- Leslie Dan Faculty of Pharmacy, University of Toronto, 144 College Street, Toronto, Ontario, Canada M5S 2S2
| | - Ho Lun Wong
- Temple University School of Pharmacy, 3304 North Broad Street, Philadelphia, PA 19140, USA
| | - Hui Yi Xue
- Temple University School of Pharmacy, 3304 North Broad Street, Philadelphia, PA 19140, USA
| | - June Young Eoh
- Temple University School of Pharmacy, 3304 North Broad Street, Philadelphia, PA 19140, USA
| | - Xiao Yu Wu
- Leslie Dan Faculty of Pharmacy, University of Toronto, 144 College Street, Toronto, Ontario, Canada M5S 2S2
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Liu L, Li XB, Zi XH, Shen L, Hu ZM, Huang SX, Yu DL, Li HB, Xia K, Tang BS, Zhang RX. A novel hemizygous SACS mutation identified by whole exome sequencing and SNP array analysis in a Chinese ARSACS patient. J Neurol Sci 2016; 362:111-4. [PMID: 26944128 DOI: 10.1016/j.jns.2016.01.026] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [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: 10/27/2015] [Revised: 12/28/2015] [Accepted: 01/15/2016] [Indexed: 12/29/2022]
Abstract
The array of autosomal recessive spastic ataxia of Charlevoix-Saguenay (ARSACS) has expanded worldwide after the first description in the Charlevoix-Saguenay region of Québec. Here, we report a Chinese ARSACS patient presenting progressive peripheral neuropathy (CMTNS2=15) with horizontal gaze nystagmus and mild spastic gait. Genetic studies including whole exome sequencing (WES), Sanger sequencing and single nucleotide polymorphism (SNP) array analysis revealed a novel hemizygous nonsense mutation (c.11803C>T, p.Gln3935X) of SACS and a 1.33Mb deletion involved in SACS on chromosome 13q12.12 in the patient. Our findings highlight the necessity of SACS mutation screening in the gene panel of inherited peripheral neuropathies, and stress the need of testing copy number variation (CNV) in SACS mutation screening.
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Affiliation(s)
- L Liu
- Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha 410013, Hunan Province, China
| | - X B Li
- Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha 410013, Hunan Province, China
| | - X H Zi
- Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha 410013, Hunan Province, China
| | - L Shen
- Department of Neurology, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China
| | - Zh M Hu
- National Key Lab of Medical Genetics, Central South University, Changsha 410078, Hunan Province, China
| | - Sh X Huang
- Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha 410013, Hunan Province, China
| | - D L Yu
- Department of Radiology, The Third Xiangya Hospital, Central South University, Changsha 410013, Hunan Province, China
| | - H B Li
- Department of Ophthalmology, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China
| | - K Xia
- National Key Lab of Medical Genetics, Central South University, Changsha 410078, Hunan Province, China
| | - B S Tang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China; National Key Lab of Medical Genetics, Central South University, Changsha 410078, Hunan Province, China
| | - R X Zhang
- Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha 410013, Hunan Province, China.
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Shuhendler AJ, Prasad P, Zhang RX, Amini MA, Sun M, Liu PP, Bristow RG, Rauth AM, Wu XY. Synergistic nanoparticulate drug combination overcomes multidrug resistance, increases efficacy, and reduces cardiotoxicity in a nonimmunocompromised breast tumor model. Mol Pharm 2014; 11:2659-74. [PMID: 24830351 DOI: 10.1021/mp500093c] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Anthracyclines, commonly employed for cancer chemotherapy, suffer from dose-limiting cardiotoxicity and poor efficacy due to multidrug resistance (MDR). We previously demonstrated that simultaneous delivery of the synergistic drugs doxorubicin (DOX) and mitomycin C (MMC) by polymer-lipid hybrid nanoparticles (PLN) circumvented MDR, increased efficacy, and reduced cardiotoxicity in immuncompromised mice superior to poly(ethylene glycol)-coated (PEGylated) lipososmal DOX (PLD). Herein it is shown that the DOX-MMC combination was also synergistic in MDR EMT6/AR1 murine breast cancer cells and that their nanoparticle formulations were able to overcome the MDR phenotype. In contrast PLD exhibited little or no effect on the MDR cells. For the first time, these differences in in vitro efficacy are shown to be strongly correlated with cellular uptake and intracellular distribution of DOX brought about by DOX formulations (e.g., free solution, PLN vs PLD). To take into consideration the role of an intact immune system and tumor stroma in the response of host and tumor to chemotherapy, use was made of nonimmunocomprised mouse models to study the dose tolerance, cardiotoxicity, and efficacy of DOX-MMC coloaded PLN (DMsPLN) compared to PLD. DMsPLN treatment at 50 mg/m(2) DOX and 17 mg/m(2) of MMC singly or once every 4 days for 4 cycles were well tolerated by the mice without elevated systemic toxicity blood markers or myocardial damage. In contrast, PLD was limited to a single treatment due to significant total weight loss. The DMsPLN treatment delayed tumor growth up to 312% and 28% in EMT6/WT and EMT6/AR1 models, respectively. This work supports the translational value of DMsPLN for the aggressive management of either naïve or anthracycline-resistant tumors.
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Affiliation(s)
- Adam J Shuhendler
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto , Toronto, Ontario M5S 3M2, Canada
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Zhang RX, Lu ZH, Wan DS, Wu XJ, Ding PR, Kong LH, Pan ZZ, Chen G. Neuroprotective effect of neurotropin on chronic oxaliplatin-induced neurotoxicity in stage II and stage III colorectal cancer patients: results from a prospective, randomised, single-centre, pilot clinical trial. Int J Colorectal Dis 2012; 27:1645-50. [PMID: 22664945 DOI: 10.1007/s00384-012-1509-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/23/2012] [Indexed: 02/04/2023]
Abstract
BACKGROUND Oxaliplatin is effective in adjuvant and first-line colorectal cancer chemotherapy. Oxaliplatin-induced severe chronic neurotoxicity is the main dose-limiting adverse event. No standard treatment for oxaliplatin-induced chronic neurotoxicity has been identified. MATERIALS AND METHODS We conducted a prospective pilot clinical trial to explore whether neurotropin has neuroprotective effects on chronic neurotoxicity. From May 1, 2010 to May 1, 2011, 80 stage II and III colorectal cancer patients who were eligible to receive oxaliplatin-based chemotherapy voluntarily enrolled in the trial. The patients were randomly divided into two groups, one of which received neurotropin treatment. RESULTS The patients in the control group experienced significantly ≥ grade 2 and ≥ grade 3 neurotoxicity (by NCI CTCAE grading) than those in the neurotropin group (60.9 vs. 21.1 %, for at least grade 2 neurotoxicity, P = 0.001; 39 vs. 2.7 %, for at least grade 3 neurotoxicity, P < 0.001). If neurotoxicity was assessed by oxaliplatin-specific neurotoxicity grading, the patients in the control group also experienced significantly more ≥ grade 2 neurotoxicity (51.2 vs. 12.5 %, P = 0.001). Neurotropin was the only factor that affected the incidence of ≥ grade 2 neurotoxicity in the multivariate Cox proportional hazards regression analysis. CONCLUSION Neurotropin combined with oxaliplatin decreases chronic neurotoxicity effectively and safely.
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Affiliation(s)
- R X Zhang
- Department of Colorectal Surgery, Sun Yat-sen University Cancer Centre, Guangzhou, Guangdong, 510060, People's Republic of China.
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Zhang Y, Zhang RX, Zhang M, Shen XY, Li A, Xin J, Ren K, Berman BM, Tan M, Lao L. Electroacupuncture inhibition of hyperalgesia in an inflammatory pain rat model: involvement of distinct spinal serotonin and norepinephrine receptor subtypes. Br J Anaesth 2012; 109:245-52. [PMID: 22628394 DOI: 10.1093/bja/aes136] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND Although acupuncture analgesia is well documented, its mechanisms have not been thoroughly clarified. We previously showed that electroacupuncture (EA) activates supraspinal serotonin- and norepinephrine-containing neurones that project to the spinal cord. This study investigates the involvement of spinal alpha(2)-adrenoceptors (α2-ARs) and 5-hydroxytryptamine (serotonin) receptors (5-HTRs) in EA effects on an inflammatory pain rat model. METHODS Inflammatory hyperalgesia was induced by injecting complete Freund's adjuvant (CFA, 0.08 ml) into the plantar surface of one hind paw and assessed by paw withdrawal latency (PWL) to a noxious thermal stimulus. The selective α2a-AR antagonist BRL-44408, α2b-AR antagonist imiloxan hydrochloride, 5-HT2B receptor (5-HT2BR) antagonist SB204741, 5-HT3R antagonist LY278584, or 5-HT1AR antagonists NAN-190 hydrobromide, or WAY-100635 were intrathecally administered 20 min before EA or sham EA, which was given 2 h post-CFA at acupoint GB30. RESULTS EA significantly increased PWL compared with sham [7.20 (0.46) vs 5.20 (0.43) s]. Pretreatment with α2a-AR [5.35 (0.45) s] or 5-HT1AR [5.22 (0.38) s] antagonists blocked EA-produced anti-hyperalgesia; α2b-AR, 5-HT2BR, and 5-HT3R antagonist pretreatment did not. Sham plus these antagonists did not significantly change PWL compared with sham plus vehicle, indicating that the antagonists had little effect on PWL. Immunohistochemical staining demonstrated that α2a-ARs are on primary afferents and 5-HT1ARs are localized in N-methyl-d-aspartic acid (NMDA) subunit NR1-containing neurones in the spinal dorsal horn. CONCLUSIONS The data show that α2a-ARs and 5-HT1ARs are involved in the EA inhibition of inflammatory pain and that the NMDA receptors are involved in EA action.
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Affiliation(s)
- Y Zhang
- Center for Integrative Medicine, School of Medicine, University of Maryland, 685 W. Baltimore St. MSTF, Rm 8-22, Baltimore, MD 21201, USA
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