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Wu C, Xiang S, Wang H, Zhang X, Tian X, Tan M, Su W. Orally Deliverable Sequence-Targeted Fucoxanthin-Loaded Biomimetic Extracellular Vesicles for Alleviation of Nonalcoholic Fatty Liver Disease. ACS Appl Mater Interfaces 2024; 16:9854-9867. [PMID: 38375789 DOI: 10.1021/acsami.3c18029] [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: 02/21/2024]
Abstract
Extracellular vesicles (EVs) possess favorable biocompatibility and immunological characteristics, making them optimal carriers for bioactive substances. In this study, an innovative hepatic-targeted vesicle system encapsulating with fucoxanthin (GA-LpEVs-FX) was successfully designed and used to alleviate nonalcoholic fatty liver disease. The formulation entails the self-assembly of EVs derived from Lactobacillus paracasei (LpEVs), modification with glycyrrhetinic acid (GA) via amide reaction offering the system liver-targeting capacity and loading fucoxanthin (FX) through sonication treatment. In vitro experiments demonstrated that GA-LpEVs-FX effectively mitigated hepatic lipid accumulation and attenuated reactive oxygen species-induced damage resulting lipid accumulation (p < 0.05). In vivo, GA-LpEVs-FX exhibited significant downregulation of lipogenesis-related proteins, namely, fatty acid synthase (FAS), acetyl-CoA carboxylase (ACC1), and sterol regulatory element binding protein 1 (SREBP-1), subsequently ameliorating lipid metabolism disorders (p < 0.05), and the stability of GA-LpEVs-FX significantly improved compared to free FX. These findings establish a novel formulation for utilizing foodborne components for nonalcoholic fatty liver disease alleviation.
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Affiliation(s)
- Caiyun Wu
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan1, Ganjingzi District, Dalian 116034, Liaoning, China
- SKL of Marine Food Processing & Safety Control, Dalian Polytechnic University, Dalian 116034, Liaoning, China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Siyuan Xiang
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan1, Ganjingzi District, Dalian 116034, Liaoning, China
- SKL of Marine Food Processing & Safety Control, Dalian Polytechnic University, Dalian 116034, Liaoning, China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Haitao Wang
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan1, Ganjingzi District, Dalian 116034, Liaoning, China
- SKL of Marine Food Processing & Safety Control, Dalian Polytechnic University, Dalian 116034, Liaoning, China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Xiumin Zhang
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan1, Ganjingzi District, Dalian 116034, Liaoning, China
- SKL of Marine Food Processing & Safety Control, Dalian Polytechnic University, Dalian 116034, Liaoning, China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Xueying Tian
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan1, Ganjingzi District, Dalian 116034, Liaoning, China
- SKL of Marine Food Processing & Safety Control, Dalian Polytechnic University, Dalian 116034, Liaoning, China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Mingqian Tan
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan1, Ganjingzi District, Dalian 116034, Liaoning, China
- SKL of Marine Food Processing & Safety Control, Dalian Polytechnic University, Dalian 116034, Liaoning, China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Wentao Su
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan1, Ganjingzi District, Dalian 116034, Liaoning, China
- SKL of Marine Food Processing & Safety Control, Dalian Polytechnic University, Dalian 116034, Liaoning, China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China
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Wang K, Ni J, Tian X, Xiang S, Li H, Shang W, Liu B, Tan M, Su W. Survivability of probiotics in Pickering emulsion gels stabilized by salmon by-product protein / sodium alginate soluble complexes at neutral pH. Int J Biol Macromol 2024; 255:128190. [PMID: 37979738 DOI: 10.1016/j.ijbiomac.2023.128190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 11/10/2023] [Accepted: 11/15/2023] [Indexed: 11/20/2023]
Abstract
Adequate amounts of live probiotics reaching the gut are necessary to maintain host health. However, the harsh environment during processing, the low pH of human gastric acid, and the high concentration of bile salts in the gut can significantly reduce survivability of probiotics. In this work, we propose a simple Pickering emulsion gels strategy to encapsulate Lactobacillus plantarum Lp90 into oil droplets filled in calcium alginate gels to improve its viability under pasteurization and gastrointestinal conditions. The emulsion gels were stabilized by the soluble complexes of salmon by-product protein (SP) and sodium alginate (ALG), and the aqueous phase was solidified by the addition of calcium. The interaction between SP and ALG and the effect of ALG concentration on emulsifying ability and emulsion stability were studied. The results from optical imaging, nuclear magnetic resonance, and rheological properties showed that the stability and viscosity of the emulsions gradually increased with the increased ALG concentration, while the droplet size of the emulsions and the content of free water in the system decreased significantly. Especially when the concentration of ALG was 1 %, the emulsion system was stable under the environment of high temperature and high ionic strength, and the water holding capacity was the highest. Through pasteurization and gastrointestinal digestion experiments, it was found that the survival rate of probiotics encapsulated in emulsion gels was significantly higher than that encapsulated in emulsions or hydrogels, which benefited from the dual action of oil droplets and calcium alginate gels network. These results provide a new strategy for the processing of probiotics and the high-value utilization of marine fish by-products.
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Affiliation(s)
- Kuiyou Wang
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, Liaoning, China; SKL of Marine Food Processing & Safety Control, Dalian 116034, Liaoning, China; National Engineering Research Center of Seafood, Dalian 116034, Liaoning, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Jialu Ni
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, Liaoning, China; SKL of Marine Food Processing & Safety Control, Dalian 116034, Liaoning, China; National Engineering Research Center of Seafood, Dalian 116034, Liaoning, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Xueying Tian
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, Liaoning, China; SKL of Marine Food Processing & Safety Control, Dalian 116034, Liaoning, China; National Engineering Research Center of Seafood, Dalian 116034, Liaoning, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Siyuan Xiang
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, Liaoning, China; SKL of Marine Food Processing & Safety Control, Dalian 116034, Liaoning, China; National Engineering Research Center of Seafood, Dalian 116034, Liaoning, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Hongliang Li
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, Liaoning, China; SKL of Marine Food Processing & Safety Control, Dalian 116034, Liaoning, China; National Engineering Research Center of Seafood, Dalian 116034, Liaoning, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Wenbo Shang
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, Liaoning, China; SKL of Marine Food Processing & Safety Control, Dalian 116034, Liaoning, China; National Engineering Research Center of Seafood, Dalian 116034, Liaoning, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Bo Liu
- Dalian Rich Foods Co.,Ltd, Dalian 116113, Liaoning, China
| | - Mingqian Tan
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, Liaoning, China; SKL of Marine Food Processing & Safety Control, Dalian 116034, Liaoning, China; National Engineering Research Center of Seafood, Dalian 116034, Liaoning, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Wentao Su
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, Liaoning, China; SKL of Marine Food Processing & Safety Control, Dalian 116034, Liaoning, China; National Engineering Research Center of Seafood, Dalian 116034, Liaoning, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, Liaoning, China.
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Qiu J, Xiang S, Sun M, Tan M. Preparation of Polysaccharide-Protein Hydrogels with an Ultrafast Self-Healing Property as a Superior Oral Delivery System of Probiotics. J Agric Food Chem 2023; 71:18842-18856. [PMID: 37978937 DOI: 10.1021/acs.jafc.3c05898] [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: 11/19/2023]
Abstract
Oral administration of probiotic supplements can effectively regulate intestinal disorders. However, harsh gastrointestinal conditions greatly limit the bioavailability of probiotics. In this work, biomass-derived polysaccharide-protein hydrogels (Dex-sBSA hydrogels) were constructed as an oral probiotic delivery system. The hydrogel encapsulation significantly promoted the growth and proliferation of probiotics and protected them from gastric acid, bile salts, reactive oxygen species, and antibiotics. In vivo experiments demonstrated that the hydrogel encapsulation significantly enhanced the bioavailability of probiotics, of which the cell number in the intestine, colon, and cecum was 35 times, 8 times, and 203 times higher than the free one, respectively. Attributed to the superior ultrafast self-healing property, the Dex-sBSA hydrogel successfully prevented the probiotics from quick elimination and prolonged the retention time in the gut, providing great possibilities for colonization and proliferation. These results clearly indicate the great potential of the Dex-sBSA hydrogel as a superior oral delivery system for probiotics.
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Affiliation(s)
- Jiaqi Qiu
- State Key Lab of Marine Food Processing & Safety Control, Dalian Polytechnic University, Dalian 116034, P. R. China
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, P. R. China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, P. R. China
| | - Siyuan Xiang
- State Key Lab of Marine Food Processing & Safety Control, Dalian Polytechnic University, Dalian 116034, P. R. China
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, P. R. China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, P. R. China
| | - Miyao Sun
- State Key Lab of Marine Food Processing & Safety Control, Dalian Polytechnic University, Dalian 116034, P. R. China
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, P. R. China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, P. R. China
| | - Mingqian Tan
- State Key Lab of Marine Food Processing & Safety Control, Dalian Polytechnic University, Dalian 116034, P. R. China
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, P. R. China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, P. R. China
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Xiang S, Zheng LB, Zhu L, Gao Y, Wang DS, Liu SL, Zhang S, Wang TY, Lu Y. [Radiomics-based prediction of microsatellite instability in stage Ⅱ and Ⅲ rectal cancer patients based on T2WI MRI and diffusion-weighted imaging]. Zhonghua Wai Ke Za Zhi 2023; 61:782-787. [PMID: 37491171 DOI: 10.3760/cma.j.cn112139-20230315-00106] [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: 07/27/2023]
Abstract
Objective: To examine the radiomics model based on high-resolution T2WI and diffusion weighted imaging (DWI) in predicting microsatellite stability in patients with stage Ⅱ and Ⅲ rectal cancer. Methods: From February 2016 to October 2020, 175 patients with stage Ⅱ and Ⅲ rectal cancer who met the inclusion criteria were retrospectively collected. There were 119 males and 56 females, aged (63.9±9.4) years (range: 37 to 85 years), including 152 patients with microsatellite stability and 23 patients with microsatellite instability. All patients were randomly divided into the training group (n=123) and the validation group (n=52) with a ratio of 7∶3. The region of interest was labeled on the T2WI and DWI images of each patient using the ITK-SNAP software, and PyRadiomics was used to extract seven kinds of radiomics features. After removing redundant features and normalizing features, the least absolute shrinkage and selection operation were used for feature selection. One clinical model, three radiomics models and one clinical-radiomics model were constructed in the training group based on a support vector machine. The area under receiver operating characteristic curve (AUC), sensitivity, specificity, and accuracy were used to evaluate the performance of the models in the verification group. Results: Three clinical features (age, degree of tumor differentiation, and distance from the lower edge of the tumor to the anal edge) and six radiomics features (two DWI-related features and four T2WI-related features) most related to microsatellite status of rectal cancer patients were selected. The AUC of the clinical-radiomics model in the training group was 0.95. In the validation group, the AUC was 0.81, better than the clinical model (0.68, Z=0.71, P=0.04), and equivalent to the T2WI+DWI model (0.82, Z=0.21, P=0.83). Conclusions: Radiomic features based on preoperative T2WI and DWI were related to microsatellite stability in patients with stage Ⅱ and Ⅲ rectal cancer and showed a high classification efficiency. The model based on the features provided a noninvasive and convenient tool for preoperative determination of microsatellite stability in rectal cancer patients.
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Affiliation(s)
- S Xiang
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - L B Zheng
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - L Zhu
- Shandong Provincial Key Laboratory of Digital Medicine and Computer-Assisted Surgery, Qingdao 266000, China
| | - Y Gao
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - D S Wang
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - S L Liu
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - S Zhang
- Department of Radiology, Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - T Y Wang
- Department of Radiology, Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - Y Lu
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, Qingdao 266000, China
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Sun S, Zhang X, Li J, Li Y, Zhou C, Xiang S, Tan M. Preparation and evaluation of ovalbumin-fucoidan nanoparticles for nicotinamide mononucleotide encapsulation with enhanced stability and anti-aging activity. Food Chem 2023; 418:135982. [PMID: 36996645 DOI: 10.1016/j.foodchem.2023.135982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 02/16/2023] [Accepted: 03/16/2023] [Indexed: 03/30/2023]
Abstract
Nicotinamide mononucleotide (NMN) has been recognized as a promising bio-active compound in relieving aging-related mitochondrial dysfunction. Self-assembled nanoparticles were prepared based on interaction between ovalbumin (OVA) and fucoidan to improve the stability and bio-accessibility of NMN. The OVA-fucoidan nanoparticles (OFNPs) displayed outstanding thermal stability and entrapment ability of NMN. The reactive oxygen species (ROS) analysis and senescence-associated β-galactosidase (SA-β-gal) staining characterization indicated that NMN encapsulated by OFNPs could effectively alleviate the cellular senescence of d-galactose-induced senescent cells. In vivo Caenorhabitis elegans experiment demonstrated that NMN-loaded OFNPs caused less accumulation of lipofuscin and protected NMN from thermal damage. Compared with free NMN, the NMN-loaded OFNPs prolonged lifespan from 28 to 31 days, increased 26% reproductive ability, and improved 12% body length of Caenorhabitis elegans. The results indicated that the use of nanocarriers could be a good strategy to improve anti-oxidative stress and anti-aging ability of NMN.
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Affiliation(s)
- Shan Sun
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan1, Gangjingzi District, Dalian 116034, Liaoning, China; National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Xuedi Zhang
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan1, Gangjingzi District, Dalian 116034, Liaoning, China; National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Jiaxuan Li
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan1, Gangjingzi District, Dalian 116034, Liaoning, China; National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Yu Li
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan1, Gangjingzi District, Dalian 116034, Liaoning, China; National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Chengfu Zhou
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan1, Gangjingzi District, Dalian 116034, Liaoning, China; National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Siyuan Xiang
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan1, Gangjingzi District, Dalian 116034, Liaoning, China; National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Mingqian Tan
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan1, Gangjingzi District, Dalian 116034, Liaoning, China; National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, Liaoning, China.
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Xiang S, Li Y, Li Y, Zhang J, Pan W, Lu Y, Liu S. Increased Dietary Niacin Intake Improves Muscle Strength, Quality, and Glucose Homeostasis in Adults over 40 Years of Age. J Nutr Health Aging 2023; 27:709-718. [PMID: 37754210 DOI: 10.1007/s12603-023-1967-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 07/17/2023] [Indexed: 09/28/2023]
Abstract
BACKGROUND AND AIMS Age-related loss of skeletal muscle mass and strength begins at 40 years of age, and limited evidence suggests that niacin supplementation increases levels of nicotinamide adenine dinucleotide in mouse muscle tissue. In addition, skeletal muscle has a key role in the body's processing of glucose. Therefore, this study aimed to investigate the relationship between dietary niacin and skeletal muscle mass, strength, and glucose homeostasis in people aged 40 years and older. METHODS This study was an American population-based cross-sectional analysis using data from the National Health and Nutrition Examination Survey (NHANES). Considering that some outcomes are only measured in specific survey cycles and subsamples, we established three data sets: a grip strength dataset (2011-2014, n=3772), a body mass components dataset (2011-2018, n=3279), and a glucose homeostasis dataset (1999-2018, n=9189). Dietary niacin and covariates were measured in all survey cycles. Linear regression or logistic regression models that adjusted for several main covariates, such as physical activity and diet, was used to evaluate the relationship between dietary niacin and grip strength, total lean mass, appendicular lean mass, total fat, trunk fat, total bone mineral content, homeostasis model assessment of insulin resistance (HOMA-IR), fasting blood glycose, fasting insulin and sarcopenia risk. Subgroup analyses, a trend test, an interaction test, and a restricted cubic spline were used for further exploration. RESULTS Higher dietary niacin intake was significantly correlated with higher grip strength (β 0.275, 95% confidence intervals [CI] 0.192-0.357), higher total lean mass (β 0.060, 95% CI 0.045-0.074), higher appendicular lean mass (β 0.025, 95% CI 0.018-0.033), and higher total bone mineral content (β 0.005, 95% CI 0.004-0.007). By contrast, higher dietary niacin intake was significantly associated with lower total fat (β -0.061, 95% CI -0.076 to -0.046), lower trunk fat (β -0.041, 95% CI -0.050 to -0.032) and lower sarcopenia risk (OR 0.460, 95% CI 0.233 to 0.907). In addition, dietary niacin significantly reduced HOMA-IR, fasting blood glucose (in participants without diabetes), and fasting insulin (p <0.05). CONCLUSION Niacin is associated with improved body composition (characterized by increased muscle mass and decreased fat content) and improved glucose homeostasis in dietary doses. Dietary niacin supplementation is a feasible way to alleviate age-related muscular loss.
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Affiliation(s)
- S Xiang
- Yun Lu, MD, PhD, Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, Qingdao, China, , 0000-0003-2253-2983; Shang-Long Liu, MD, PhD, Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, Qingdao, China, , 0000-0002-5828-4718
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Wang J, Li YJ, Li XX, Sun YX, Xiang S, Zhang MQ, Li XJ, Qiu ZK. Late-Night Overeating and All-Cause and Cardiovascular Disease Mortality in Adults Aged ≥ 50: A Cohort Study. J Nutr Health Aging 2023; 27:701-708. [PMID: 37754209 DOI: 10.1007/s12603-023-1966-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 07/17/2023] [Indexed: 09/28/2023]
Abstract
BACKGROUND Late-night overeating (LNOE) is closely associated with many health risk factors, but whether LNOE can increase the risk of death remains unknown. Thus, the prospective cohort study aimed to investigate the relationship between LNOE and mortality using data from the National Health and Nutrition Examination Survey. METHODS 11,893 participants aged 50 years and older were included in the study. Dietary information was obtained through 24-h dietary recall interviews. Cox regression, subgroup, sensitivity, and restricted cubic spline analyses were used to assess the association between LNOE and mortality. RESULTS During a median follow-up of 8.3 years, 2,498 deaths occurred. After adjusting for major confounders, compared to the non-late-night eating (NLNE) group, the LNOE group was associated with higher risks of all-cause (HR = 1.47, 95% CI = 1.06-2.04) and cardiovascular disease (CVD) mortality (HR = 2.02, 95% CI = 1.13-3.60). No significant association was found between late-night eating (LNE) and mortality. Subgroup analyses showed that the LNOE group had a greater risk of all-cause and CVD mortality in participants older than 70 years, with alcohol consumption and hypertension and demonstrated an increased risk of all-cause mortality in males and higher CVD mortality in females. CONCLUSION The habit of LNOE was an independent risk factor for all-cause and CVD mortality in US adults aged 50 years and older, which was also influenced by age, sex, alcohol consumption, and hypertension.
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Affiliation(s)
- J Wang
- Zhen-kang Qiu, PhD, MD, Interventional Medical Center, The Affiliated Hospital of Qingdao University, 16, Jiangsu Road, Qingdao 266003, Shandong Province, China, Tel: 86-0532-82913275, Fax: 86-0532-82913275,
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Pan X, Xiang S, Zhu Y, Yang M. Co-cultivation with Endophytic Fungi Differentially Shaped the Anthocyanin Profiles in Post-veraison Grape Berries. APPL BIOCHEM MICRO+ 2022. [DOI: 10.1134/s0003683822060138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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Adeeb N, Dibas M, Griessenauer CJ, Cuellar HH, Salem MM, Xiang S, Enriquez-Marulanda A, Hong T, Zhang H, Taussky P, Grandhi R, Waqas M, Aldine AS, Tutino VM, Aslan A, Siddiqui AH, Levy EI, Ogilvy CS, Thomas AJ, Ulfert C, Möhlenbruch MA, Renieri L, Bengzon Diestro JD, Lanzino G, Brinjikji W, Spears J, Vranic JE, Regenhardt RW, Rabinov JD, Harker P, Müller-Thies-Broussalis E, Killer-Oberpfalzer M, Islak C, Kocer N, Sonnberger M, Engelhorn T, Kapadia A, Yang VXD, Salehani A, Harrigan MR, Krings T, Matouk CC, Mirshahi S, Chen KS, Aziz-Sultan MA, Ghorbani M, Schirmer CM, Goren O, Dalal SS, Finkenzeller T, Holtmannspötter M, Buhk JH, Foreman PM, Cress MC, Hirschl RA, Reith W, Simgen A, Janssen H, Marotta TR, Stapleton CJ, Patel AB, Dmytriw AA. Learning Curve for Flow Diversion of Posterior Circulation Aneurysms: A Long-Term International Multicenter Cohort Study. AJNR Am J Neuroradiol 2022; 43:1615-1620. [PMID: 36229166 PMCID: PMC9731249 DOI: 10.3174/ajnr.a7679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Accepted: 06/28/2022] [Indexed: 02/01/2023]
Abstract
BACKGROUND AND PURPOSE Flow diversion has gradually become a standard treatment for intracranial aneurysms of the anterior circulation. Recently, the off-label use of the flow diverters to treat posterior circulation aneurysms has also increased despite initial concerns of rupture and the suboptimal results. This study aimed to explore the change in complication rates and treatment outcomes across time for posterior circulation aneurysms treated using flow diversion and to further evaluate the mechanisms and variables that could potentially explain the change and outcomes. MATERIALS AND METHODS A retrospective review using a standardized data set at multiple international academic institutions was performed to identify patients with ruptured and unruptured posterior circulation aneurysms treated with flow diversion during a decade spanning January 2011 to January 2020. This period was then categorized into 4 intervals. RESULTS A total of 378 procedures were performed during the study period. Across time, there was an increasing tendency to treat more vertebral artery and fewer large vertebrobasilar aneurysms (P = .05). Moreover, interventionalists have been increasingly using fewer overlapping flow diverters per aneurysm (P = .07). There was a trend toward a decrease in the rate of thromboembolic complications from 15.8% in 2011-13 to 8.9% in 2018-19 (P = .34). CONCLUSIONS This multicenter experience revealed a trend toward treating fewer basilar aneurysms, smaller aneurysms, and increased usage of a single flow diverter, leading to a decrease in the rate of thromboembolic and hemorrhagic complications.
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Affiliation(s)
- N Adeeb
- From the Departments of Neurosurgery and Interventional Neuroradiology (N.A., M.D., H.H.C., A.S.A., A.A.), Louisiana State University Hospital, Shreveport, Louisiana
| | - M Dibas
- From the Departments of Neurosurgery and Interventional Neuroradiology (N.A., M.D., H.H.C., A.S.A., A.A.), Louisiana State University Hospital, Shreveport, Louisiana
| | - C J Griessenauer
- Departments of Neurosurgery and Radiology (C.J.G., C.M.S., O.G., S.S.D.), Geisinger, Danville, Pennsylvania
- Department of Neurology/Institut of Neurointervention (C.J.G., E.M.-T.-B., M.K.-O.), University Hospital Salzburg, Paracelsus Medical University, Salzburg, Austria
| | - H H Cuellar
- From the Departments of Neurosurgery and Interventional Neuroradiology (N.A., M.D., H.H.C., A.S.A., A.A.), Louisiana State University Hospital, Shreveport, Louisiana
| | - M M Salem
- Neurosurgical Service (M.M.S., A.E.-M., P.T., C.S.O.), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - S Xiang
- Department of Neurosurgery (S.X., H.Z., T.H.), Xuanwu Hospital, Capital Medical University, Beijing, China
| | - A Enriquez-Marulanda
- Neurosurgical Service (M.M.S., A.E.-M., P.T., C.S.O.), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - T Hong
- Department of Neurosurgery (S.X., H.Z., T.H.), Xuanwu Hospital, Capital Medical University, Beijing, China
| | - H Zhang
- Department of Neurosurgery (S.X., H.Z., T.H.), Xuanwu Hospital, Capital Medical University, Beijing, China
| | - P Taussky
- Neurosurgical Service (M.M.S., A.E.-M., P.T., C.S.O.), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
- Department of Neurosurgery (P.T., R.G.), University of Utah, Salt Lake City, Utah
| | - R Grandhi
- Department of Neurosurgery (P.T., R.G.), University of Utah, Salt Lake City, Utah
| | - M Waqas
- Department of Neurosurgery (M.W., V.M.T., A.H.S., E.I.L.), State University of New York at Buffalo, Buffalo, New York
| | - A S Aldine
- From the Departments of Neurosurgery and Interventional Neuroradiology (N.A., M.D., H.H.C., A.S.A., A.A.), Louisiana State University Hospital, Shreveport, Louisiana
| | - V M Tutino
- Department of Neurosurgery (M.W., V.M.T., A.H.S., E.I.L.), State University of New York at Buffalo, Buffalo, New York
| | - A Aslan
- From the Departments of Neurosurgery and Interventional Neuroradiology (N.A., M.D., H.H.C., A.S.A., A.A.), Louisiana State University Hospital, Shreveport, Louisiana
| | - A H Siddiqui
- Department of Neurosurgery (M.W., V.M.T., A.H.S., E.I.L.), State University of New York at Buffalo, Buffalo, New York
| | - E I Levy
- Department of Neurosurgery (M.W., V.M.T., A.H.S., E.I.L.), State University of New York at Buffalo, Buffalo, New York
| | - C S Ogilvy
- Neurosurgical Service (M.M.S., A.E.-M., P.T., C.S.O.), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - A J Thomas
- Department of Neurological Surgery (A.J.T.), Cooper University Health Care, Cooper Medical School of Rowan University, Camden, New Jersey
| | - C Ulfert
- Department of Neuroradiology (C.U., M.A.M.), Universitätsklinikum Heidelberg, Heidelberg, Germany
| | - M A Möhlenbruch
- Department of Neuroradiology (C.U., M.A.M.), Universitätsklinikum Heidelberg, Heidelberg, Germany
| | - L Renieri
- Department of Interventional Neuroradiology (L.R.), University of Florence, Florence, Italy
| | - J D Bengzon Diestro
- Division of Diagnostic and Therapeutic Neuroradiology (J.D.B.D., J.S., T.R.M.), St. Michael's Hospital, Toronto, Ontario, Canada
| | - G Lanzino
- Department of Neurological Surgery (G.L., W.B.), Mayo Clinic, Rochester, Minnesota
| | - W Brinjikji
- Department of Neurological Surgery (G.L., W.B.), Mayo Clinic, Rochester, Minnesota
| | - J Spears
- Division of Diagnostic and Therapeutic Neuroradiology (J.D.B.D., J.S., T.R.M.), St. Michael's Hospital, Toronto, Ontario, Canada
| | - J E Vranic
- Neuroendovascular Program (J.E.V., R.W.R., J.D.R., P.H., S.M., K.S.C., M.A.A.-S., C.J.S., A.B.P., A.A.D.), Massachusetts General Hospital & Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - R W Regenhardt
- Neuroendovascular Program (J.E.V., R.W.R., J.D.R., P.H., S.M., K.S.C., M.A.A.-S., C.J.S., A.B.P., A.A.D.), Massachusetts General Hospital & Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - J D Rabinov
- Neuroendovascular Program (J.E.V., R.W.R., J.D.R., P.H., S.M., K.S.C., M.A.A.-S., C.J.S., A.B.P., A.A.D.), Massachusetts General Hospital & Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - P Harker
- Neuroendovascular Program (J.E.V., R.W.R., J.D.R., P.H., S.M., K.S.C., M.A.A.-S., C.J.S., A.B.P., A.A.D.), Massachusetts General Hospital & Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - E Müller-Thies-Broussalis
- Department of Neurology/Institut of Neurointervention (C.J.G., E.M.-T.-B., M.K.-O.), University Hospital Salzburg, Paracelsus Medical University, Salzburg, Austria
| | - M Killer-Oberpfalzer
- Department of Neurology/Institut of Neurointervention (C.J.G., E.M.-T.-B., M.K.-O.), University Hospital Salzburg, Paracelsus Medical University, Salzburg, Austria
| | - C Islak
- Department of Neuroradiology (C.I., N.K.), Cerrahpasa Medical School, Istanbul University, Istanbul, Turkey
| | - N Kocer
- Department of Neuroradiology (C.I., N.K.), Cerrahpasa Medical School, Istanbul University, Istanbul, Turkey
| | - M Sonnberger
- Department of Neuroradiology (M.S.), Kepler Universitätsklinikum Linz, Linz, Austria
| | - T Engelhorn
- Department of Neuroradiology (T.E.), University Hospital Erlangen, Erlangen, Germany
| | - A Kapadia
- Departments of Medical Imaging and Neurosurgery (A.K.), Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - V X D Yang
- Neurointerventional Program (V.X.D.Y., A.A.D.), Departments of Medical Imaging & Clinical Neurological Sciences, London Health Sciences Centre, Western University, Ontario, Canada
| | - A Salehani
- Department of Neurosurgery (A. Salehani, M.R.H.), University of Alabama at Birmingham, Birmingham, Alabama
| | - M R Harrigan
- Department of Neurosurgery (A. Salehani, M.R.H.), University of Alabama at Birmingham, Birmingham, Alabama
| | - T Krings
- Division of Interventional Neuroradiology (T.K.), Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada
| | - C C Matouk
- Department of Neurosurgery (C.C.M.), Yale School of Medicine, New Haven, Connecticut
| | - S Mirshahi
- Neuroendovascular Program (J.E.V., R.W.R., J.D.R., P.H., S.M., K.S.C., M.A.A.-S., C.J.S., A.B.P., A.A.D.), Massachusetts General Hospital & Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - K S Chen
- Neuroendovascular Program (J.E.V., R.W.R., J.D.R., P.H., S.M., K.S.C., M.A.A.-S., C.J.S., A.B.P., A.A.D.), Massachusetts General Hospital & Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - M A Aziz-Sultan
- Neuroendovascular Program (J.E.V., R.W.R., J.D.R., P.H., S.M., K.S.C., M.A.A.-S., C.J.S., A.B.P., A.A.D.), Massachusetts General Hospital & Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - M Ghorbani
- Division of Vascular and Endovascular Neurosurgery (M.G.), Firoozgar Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - C M Schirmer
- Departments of Neurosurgery and Radiology (C.J.G., C.M.S., O.G., S.S.D.), Geisinger, Danville, Pennsylvania
| | - O Goren
- Departments of Neurosurgery and Radiology (C.J.G., C.M.S., O.G., S.S.D.), Geisinger, Danville, Pennsylvania
| | - S S Dalal
- Departments of Neurosurgery and Radiology (C.J.G., C.M.S., O.G., S.S.D.), Geisinger, Danville, Pennsylvania
| | - T Finkenzeller
- Institute of Radiology and Neuroradiology (T.F., M.H.), Klinikum Nuernberg Sued, Paracelsus Medical University Nuernberg, Nuernberg, Germany
| | - M Holtmannspötter
- Institute of Radiology and Neuroradiology (T.F., M.H.), Klinikum Nuernberg Sued, Paracelsus Medical University Nuernberg, Nuernberg, Germany
- Department of Neuroradiology (M.H.), Klinikum Weiden, Weiden, Germany
| | - J-H Buhk
- Department of Neuroradiology (J.-H.B.), University Hospital Hamburg Eppendorf, Hamburg, Germany
| | - P M Foreman
- Neuroscience and Rehabilitation Institute (P.M.F., M.C.C., R.A.H.), Orlando Health, Orlando, Florida
| | - M C Cress
- Neuroscience and Rehabilitation Institute (P.M.F., M.C.C., R.A.H.), Orlando Health, Orlando, Florida
| | - R A Hirschl
- Neuroscience and Rehabilitation Institute (P.M.F., M.C.C., R.A.H.), Orlando Health, Orlando, Florida
| | - W Reith
- Clinic for Diagnostic and Interventional Neuroradiology (W.R., A. Simgen), Universitätsklinikum des Saarlandes, Homburg/Saar, Germany
| | - A Simgen
- Clinic for Diagnostic and Interventional Neuroradiology (W.R., A. Simgen), Universitätsklinikum des Saarlandes, Homburg/Saar, Germany
| | - H Janssen
- Institute for Neuroradiology (H.J.), Klinikum Ingolstadt, Ingolstadt, Germany
| | - T R Marotta
- Division of Diagnostic and Therapeutic Neuroradiology (J.D.B.D., J.S., T.R.M.), St. Michael's Hospital, Toronto, Ontario, Canada
| | - C J Stapleton
- Neuroendovascular Program (J.E.V., R.W.R., J.D.R., P.H., S.M., K.S.C., M.A.A.-S., C.J.S., A.B.P., A.A.D.), Massachusetts General Hospital & Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - A B Patel
- Neuroendovascular Program (J.E.V., R.W.R., J.D.R., P.H., S.M., K.S.C., M.A.A.-S., C.J.S., A.B.P., A.A.D.), Massachusetts General Hospital & Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - A A Dmytriw
- Neurointerventional Program (V.X.D.Y., A.A.D.), Departments of Medical Imaging & Clinical Neurological Sciences, London Health Sciences Centre, Western University, Ontario, Canada
- Neuroendovascular Program (J.E.V., R.W.R., J.D.R., P.H., S.M., K.S.C., M.A.A.-S., C.J.S., A.B.P., A.A.D.), Massachusetts General Hospital & Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
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10
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Wang T, You F, Li Y, Xiang S, Wu H, Meng H, Yang N, Zhang B, Yang L. 759P Preconditioning with irradiation enhances efficacy of B7-H3-CAR-T in treating solid tumor models. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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11
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Huang X, Xiang S, Xi X. How culture influences consumer creativity: A dual perspective of multiculturalism and loose-tight culture. Curr Psychol 2022. [DOI: 10.1007/s12144-022-03569-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
AbstractIn the context of globalization, consumers with multicultural experiences are increasingly involved in the process of value creation, yet there is a lack of understanding of how multiculturalism affects consumer creativity. Based on the dual perspectives of multiculturalism and loose-tight culture, this paper illustrates the mechanism of multicultural experience on consumer creativity and the moderating effect of loose-tight culture on this relationship. Two studies (a questionnaire study and an experimental study) were conducted to validate the theoretical model. The results revealed that multicultural experiences enhance consumer creativity, cognitive complexity mediates the relationship between the two, and loose-tight culture moderates the relationship between multicultural experiences and consumer creativity. The loose culture scenario has a positive enhancement effect, the tight culture scenario has a negative weakening effect, and the interaction between multicultural experiences and loose-tight culture affects consumer creativity through cognitive complexity. The results of this study provide a new perspective on the relationship between culture and consumer creativity, expanding the study of culture and consumer creativity from the cultural value dimension to the social norm dimension, enriching the research on creativity as a cognitive process at the consumer level, and providing guidance and reference for companies to better stimulate and utilize consumer creativity.
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12
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Zhou Z, Maxeiner K, Moscariello P, Xiang S, Wu Y, Ren Y, Whitfield CJ, Xu L, Kaltbeitzel A, Han S, Mücke D, Qi H, Wagner M, Kaiser U, Landfester K, Lieberwirth I, Ng DYW, Weil T. In Situ Assembly of Platinum(II)-Metallopeptide Nanostructures Disrupts Energy Homeostasis and Cellular Metabolism. J Am Chem Soc 2022; 144:12219-12228. [PMID: 35729777 PMCID: PMC9284552 DOI: 10.1021/jacs.2c03215] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Nanostructure-based functions are omnipresent in nature and essential for the diversity of life. Unlike small molecules, which are often inhibitors of enzymes or biomimetics with established methods of elucidation, we show that functions of nanoscale structures in cells are complex and can implicate system-level effects such as the regulation of energy and redox homeostasis. Herein, we design a platinum(II)-containing tripeptide that assembles into intracellular fibrillar nanostructures upon molecular rearrangement in the presence of endogenous H2O2. The formed nanostructures blocked metabolic functions, including aerobic glycolysis and oxidative phosphorylation, thereby shutting down ATP production. As a consequence, ATP-dependent actin formation and glucose metabolite-dependent histone deacetylase activity are downregulated. We demonstrate that assembly-driven nanomaterials offer a rich avenue to achieve broad-spectrum bioactivities that could provide new opportunities in drug discovery.
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Affiliation(s)
- Zhixuan Zhou
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - Konrad Maxeiner
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
| | | | - Siyuan Xiang
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - Yingke Wu
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - Yong Ren
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
| | | | - Lujuan Xu
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
| | | | - Shen Han
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - David Mücke
- Central Facility of Materials Science Electron Microscopy, Universität Ulm, 89081 Ulm, Germany
| | - Haoyuan Qi
- Central Facility of Materials Science Electron Microscopy, Universität Ulm, 89081 Ulm, Germany.,Faculty of Chemistry and Food Chemistry & Center for Advancing Electronics Dresden (cfaed), Technische Universität Dresden, 01062 Dresden, Germany
| | - Manfred Wagner
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - Ute Kaiser
- Central Facility of Materials Science Electron Microscopy, Universität Ulm, 89081 Ulm, Germany
| | | | | | - David Y W Ng
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - Tanja Weil
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
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13
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Tie S, Xiang S, Chen Y, Qiao F, Cui W, Su W, Tan M. Facile synthesis of food-grade and size-controlled nanocarriers based on self-assembly of procyanidins and phycocyanin. Food Funct 2022; 13:4023-4031. [PMID: 35315469 DOI: 10.1039/d1fo04222j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nanocarriers provide the possibility to overcome the low solubility, poor stability, and low bioavailability of functional factors. However, most nanocarriers do not directly participate in the corresponding effects of functional factors, such as treating inflammatory bowel disease but lack the means to control their size accurately. Herein, nanocarriers were prepared by a one-pot method, using food-grade antioxidant procyanidins, vanillin, and phycocyanin as raw materials. The strategy involved the Mannich reaction among the phenolic hydroxyl groups of procyanidins, the aldehyde groups of vanillin, and the amino groups of phycocyanin. The obtained nanocarriers displayed controllable sizes ranging from 130 to 750 nm, showing good antioxidant capacity in scavenging free radicals and were biocompatible to Caco-2 cells and RAW 264.7 macrophages. Nanocarriers also exhibited an inhibitory effect on cell damage induced by acrylamide and H2O2. Moreover, the designed nanocarriers could be used for delivering active ingredients such as lutein, which showed a uniform spherical distribution, high encapsulation efficiency, and good biocompatibility. This work provides a facile synthesis method to prepare food-grade nanocarriers with functional properties, which can be potentially used in the delivery of functional factors.
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Affiliation(s)
- Shanshan Tie
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan1, Ganjingzi District, Dalian 116034, Liaoning, China. .,National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China.,Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Siyuan Xiang
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan1, Ganjingzi District, Dalian 116034, Liaoning, China. .,National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China.,Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Yannan Chen
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan1, Ganjingzi District, Dalian 116034, Liaoning, China. .,National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China.,Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Fengzhi Qiao
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan1, Ganjingzi District, Dalian 116034, Liaoning, China. .,National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China.,Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Weina Cui
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan1, Ganjingzi District, Dalian 116034, Liaoning, China. .,National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China.,Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Wentao Su
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan1, Ganjingzi District, Dalian 116034, Liaoning, China. .,National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China.,Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Mingqian Tan
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan1, Ganjingzi District, Dalian 116034, Liaoning, China. .,National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China.,Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, Liaoning, China
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14
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Zhang Y, Xiang S, Yu H, Wang H, Tan M. Fabrication and characterization of superior stable Pickering emulsions stabilized by propylene glycol alginate gliadin nanoparticles. Food Funct 2022; 13:2172-2183. [PMID: 35113104 DOI: 10.1039/d1fo03940g] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Gliadin, a kind of amphiphilic protein from wheat, has been widely used for stabilizing Pickering emulsions, which is easy to form colloidal particles. Herein, gliadin/propylene glycol alginate (PGA) colloidal particles (GPPs) with different gliadin/PGA ratios were developed and used as emulsifiers to prepare Pickering emulsions with an internal phase of 80% (v/v). The addition of PGA made the GPPs a tree-fruit-like morphology, increasing the particle size and changing the zeta-potential. Hydrogen bond and electrostatic interaction are the major forces between gliadin and PGA. The wettability of GPPs was improved significantly in the presence of PGA. The oil-water contact angle reached 89.5° when the gliadin/PGA ratio was 1 : 1. The emulsion could be maintained at room temperature for 6 months when the oil phase ratio (Φ) was 70%. The high stability of the Pickering emulsion could be attributed to the thin film formed by GPPs on the surface of oil droplets. The improved resistance of algal oil in emulsions against oxidation was proved as the induction time increased six times. In addition, the porous material prepared using GPPs-stabilized emulsion as the template displayed an oil absorption ability of 106.41 g g-1 and heavy metal adsorption ability of 202.71 mg g-1. Such performance implies that GPPs are highly efficient food-grade Pickering emulsifiers that may be applied in various fields.
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Affiliation(s)
- Yin Zhang
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan1, Gangjingzi District, Dalian 116034, Liaoning, China. .,National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China.,Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Siyuan Xiang
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan1, Gangjingzi District, Dalian 116034, Liaoning, China. .,National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China.,Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Hongjin Yu
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan1, Gangjingzi District, Dalian 116034, Liaoning, China. .,National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China.,Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Haitao Wang
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan1, Gangjingzi District, Dalian 116034, Liaoning, China. .,National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China.,Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Mingqian Tan
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan1, Gangjingzi District, Dalian 116034, Liaoning, China. .,National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China.,Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, Liaoning, China
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Xiang S, Wagner J, Lückerath T, Müllen K, Ng DYW, Hedrich J, Weil T. Reversing Aβ Fibrillation and Inhibiting Aβ Primary Neuronal Cell Toxicity Using Amphiphilic Polyphenylene Dendrons. Adv Healthc Mater 2022; 11:e2101854. [PMID: 34748685 DOI: 10.1002/adhm.202101854] [Citation(s) in RCA: 3] [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: 09/03/2021] [Revised: 10/29/2021] [Indexed: 11/07/2022]
Abstract
Uncontrolled amyloid-beta (Aβ) fibrillation leads to the deposition of neurotoxic amyloid plaques and is associated with Alzheimer's disease. Inhibiting Aβ monomer fibrillation and dissociation of the formed fibers is regarded as a promising therapeutic strategy. Here, amphiphilic polyphenylene dendrons (APDs) are demonstrated to interrupt Aβ assembly and reduce Aβ-cell interactions. Containing alternating negatively charged sulfonic acid and hydrophobic n-propyl peripheral groups, APDs bind to the secondary structure of the Aβ aggregates, inhibiting fibrillation and disassemble the already formed Aβ fibrils. APDs reveal vesicular cellular uptake in endosomes as well as cell compatibility for endothelial and neuronal cells, and significantly reduce Aβ-induced neuron cytotoxicity in vitro. Moreover, they are transported into the brain and successfully cross the blood-brain barrier after systemic application in mice, indicating their high potential to inhibit Aβ fibrillation in vivo, which can be beneficial for developing therapeutic strategy for Alzheimer's disease.
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Affiliation(s)
- Siyuan Xiang
- Max Planck Institute for Polymer Research Ackermannweg 10 Mainz 55128 Germany
| | - Jessica Wagner
- Max Planck Institute for Polymer Research Ackermannweg 10 Mainz 55128 Germany
| | - Thorsten Lückerath
- Max Planck Institute for Polymer Research Ackermannweg 10 Mainz 55128 Germany
| | - Klaus Müllen
- Max Planck Institute for Polymer Research Ackermannweg 10 Mainz 55128 Germany
| | - David Y. W. Ng
- Max Planck Institute for Polymer Research Ackermannweg 10 Mainz 55128 Germany
| | - Jana Hedrich
- Max Planck Institute for Polymer Research Ackermannweg 10 Mainz 55128 Germany
| | - Tanja Weil
- Max Planck Institute for Polymer Research Ackermannweg 10 Mainz 55128 Germany
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16
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Chen Y, Xiang S, Wang L, Wang M, Wang C, Liu S, Zhang K, Yang B. Corrigendum: Hollow Polypyrrole Nanospindles for Highly Effective Therapy of Cancer. Chempluschem 2021; 86:1569. [PMID: 34787380 DOI: 10.1002/cplu.202100488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Luo Y, Su R, Yao H, Zhang A, Xiang S, Huang L. Degradation of trimethoprim by sulfate radical-based advanced oxidation processes: kinetics, mechanisms, and effects of natural water matrices. Environ Sci Pollut Res Int 2021; 28:62572-62582. [PMID: 34195947 PMCID: PMC8245158 DOI: 10.1007/s11356-021-15146-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 06/22/2021] [Indexed: 04/16/2023]
Abstract
In this study, we investigated the removal efficiency of a broad-spectrum antimicrobial agent trimethoprim (TMP) in a UV-activated persulfate system (UV/PS). The pseudo-first-order reaction kinetic model based on the steady-state hypothesis was used to explain TMP degradation behavior in UV-activated persulfate system. Due to the low quantum yield and molar absorptivity of TMP at 254 nm, the direct photolysis of TMP was slower. Since the free radicals generated by adding H2O2 or PS to the system can react with TMP, the degradation rate was significantly accelerated, and[Formula: see text] played a dominant role in the UV/PS system. [Formula: see text] and [Formula: see text] were determined by the pseudo-first-order reaction kinetic model to be 6.02×109 and 3.88×109 M-1s-1, respectively. The values were consistent with competitive kinetic measurements. The pseudo-first-order reaction kinetics model can predict and explain the effect of PS concentration, natural organic matter, and chloride ion on the TMP degradation in the UV/PS system. The observed pseudo first-order rate constants for TMP degradation (kobs) increased with the persulfate concentration, but it significantly decreased in the presence of NOM and chloride. [Formula: see text] has no effect on the degradation of TMP, while [Formula: see text] promotes the degradation and [Formula: see text] inhibits the degradation. The common transition metal ion (such as Cu2+, Zn2+, and Co2+) in industrial wastewater has a synergistic effect on the TMP degradation in the UV/PS system, but excessive metal ions will lead to a decrease of the degradation rate.
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Affiliation(s)
- Yiting Luo
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, 330063, PR China
- School of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, PR China
| | - Rongkui Su
- School of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, PR China.
| | - Haisong Yao
- School of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, PR China
| | - Aoshan Zhang
- School of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, PR China
| | - Siyuan Xiang
- School of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, PR China
| | - Lei Huang
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, PR China.
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18
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Shang GQ, Xiang S, Guo CC, Guo JJ, Zhang HN, Wang YZ, Xu H. [Diagnostic value of platelet associated biomarkers in chronic periprosthetic joint infection]. Zhonghua Wai Ke Za Zhi 2021; 59:767-772. [PMID: 34404175 DOI: 10.3760/cma.j.cn112139-20210401-00152] [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: 11/05/2022]
Abstract
Objective: To evaluate the diagnostic value of platelet count(PC),PC to mean platelet volume(MPV) ratio(PC/MPV) and plateletcrit(PCT) in chronic periprosthetic joint infection(PJI). Method: The medical records of 159 patients who underwent hip or knee revisions at Department of Joint Surgery,Affiliated Hospital of Qingdao University from August 2013 to June 2019 were retrospectively reviewed. There were 51 patients(26 knees and 25 hips) in the PJI group,which included 28 males and 23 females,aged (68.0±11.8)years (range:32 to 84 years)with a body mass index(BMI)of (26.1±3.6) kg/m².There were 116 patients(19 knees and 97 hips) in the aseptic loosening(AL) group,including 67 males and 49 females,aged (70.3±8.9)years(range:49 to 89 years)with a BMI of (25.0±3.6)kg/m².The plasma C-reactive protein(CRP),erythrocyte sedimentation rate(ESR),PC,MPV,PC/MPV and PCT levels of the two groups were recorded and analyzed. Receiver operating characteristic curve was used to calculate the sensitivity and specificity of each biomarker,expect for MPV,and the diagnostic value of each biomarker was compared according to the area under the curve(AUC).Independent-sample t test or Mann-Whitney U test were used for comparison between groups. Result: Compared with AL group,AJI group had significantly higher levels of CRP,ESR,PC,PC/MPV and PCT(all P<0.05),but lower level of MPV (P<0.05).The AUCs for CRP,ESR,PC,PC/MPV and PCT were 0.820, 0.829, 0.689, 0.668 and 0.676,respectively. Based on the Youden index,the optimal predictive cutoff for CRP was 11.12 mg/L,with a sensitivity of 74.4% and a specificity of 87.1%.The optimal predictive cutoff for ESR was 17.60 mm/1 h,with a sensitivity of 81.4% and a specificity of 75.3%.The optimal predictive cutoff for PC was 243.00×109/L,with a sensitivity of 60.6% and a specificity of 71.8%.The optimal predictive cutoff for PC/MPV was 24.95,the sensitivity was 58.1% and the specificity was 74.1%.And the optimal predictive cutoff for PCT was 0.24%,with a sensitivity of 69.8% and a specificity of 63.5%. Conclusion: PC,PC to MPV ratio and PCT were of limited value to diagnose PJI.
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Affiliation(s)
- G Q Shang
- Department of Joint Surgery,Affiliated Hospital of Qingdao University,Qingdao 266000,China
| | - S Xiang
- Department of Joint Surgery,Affiliated Hospital of Qingdao University,Qingdao 266000,China
| | - C C Guo
- Department of Joint Surgery,Affiliated Hospital of Qingdao University,Qingdao 266000,China
| | - J J Guo
- Department of Joint Surgery,Affiliated Hospital of Qingdao University,Qingdao 266000,China
| | - H N Zhang
- Department of Joint Surgery,Affiliated Hospital of Qingdao University,Qingdao 266000,China
| | - Y Z Wang
- Department of Joint Surgery,Affiliated Hospital of Qingdao University,Qingdao 266000,China
| | - H Xu
- Department of Joint Surgery,Affiliated Hospital of Qingdao University,Qingdao 266000,China
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Wang L, Liu S, Ren C, Xiang S, Li D, Hao X, Ni S, Chen Y, Zhang K, Sun H. Construction of hollow polydopamine nanoparticle based drug sustainable release system and its application in bone regeneration. Int J Oral Sci 2021; 13:27. [PMID: 34408132 PMCID: PMC8373924 DOI: 10.1038/s41368-021-00132-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 07/11/2021] [Accepted: 07/19/2021] [Indexed: 12/23/2022] Open
Abstract
Nanomaterial-based drug sustainable release systems have been tentatively applied to bone regeneration. They, however, still face disadvantages of high toxicity, low biocompatibility, and low drug-load capacity. In view of the low toxicity and high biocompatibility of polymer nanomaterials and the excellent load capacity of hollow nanomaterials with high specific surface area, we evaluated the hollow polydopamine nanoparticles (HPDA NPs), in order to find an optimal system to effectively deliver the osteogenic drugs to improve treatment of bone defect. Data demonstrated that the HPDA NPs synthesized herein could efficiently load four types of osteogenic drugs and the drugs can effectively release from the HPDA NPs for a relatively longer time in vitro and in vivo with low toxicity and high biocompatibility. Results of qRT-PCR, ALP, and alizarin red S staining showed that drugs released from the HPDA NPs could promote osteogenic differentiation and proliferation of rat bone marrow mesenchymal stem cells (rBMSCs) in vitro. Image data from micro-CT and H&E staining showed that all four osteogenic drugs released from the HPDA NPs effectively promoted bone regeneration in the defect of tooth extraction fossa in vivo, especially tacrolimus. These results suggest that the HPDA NPs, the biodegradable hollow polymer nanoparticles with high drug load rate and sustainable release ability, have good prospect to treat the bone defect in future clinical practice.
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Affiliation(s)
- Lu Wang
- Department of Oral Pathology, Hospital of Stomatology, Jilin University, Changchun, China.,Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Shuwei Liu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, China
| | - Chunxia Ren
- Department of Oral Pathology, Hospital of Stomatology, Jilin University, Changchun, China.,Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Siyuan Xiang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, China
| | - Daowei Li
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Xinqing Hao
- Department of Oral Pathology, Hospital of Stomatology, Jilin University, Changchun, China.,Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Shilei Ni
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Yixin Chen
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, China
| | - Kai Zhang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, China.
| | - Hongchen Sun
- Department of Oral Pathology, Hospital of Stomatology, Jilin University, Changchun, China. .,Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School and Hospital of Stomatology, Jilin University, Changchun, China.
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20
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Zhang M, Zhang M, Fu X, Meng H, Chen D, Wang M, Zhang L, Li L, Li X, Wang X, Sun Z, Yu H, Li Z, Nan F, Chang Y, Zhou Z, Yan J, Li J, Wang Y, You F, Wang Y, Xiang S, Chen Y, Pan G, Xu H, Zhang B, Yang L. A SINGLE‐ARM, OPEN‐LABEL, PILOT TRIAL OF AUTOLOGOUS CD7‐CAR‐T CELLS FOR CD7 POSITIVE RELAPSED AND REFRACTORY T‐LYMPHOBLASTIC LEUKEMIA/LYMPHOMA. Hematol Oncol 2021. [DOI: 10.1002/hon.181_2880] [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: 11/09/2022]
Affiliation(s)
- M. Zhang
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - M. Zhang
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - X. Fu
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - H. Meng
- PersonGen BioTherapeutics (Suzhou) Co., Ltd. PersonGen BioTherapeutics (Suzhou) Co., Ltd. Suzhou China
| | - D. Chen
- PersonGen BioTherapeutics (Suzhou) Co., Ltd. PersonGen BioTherapeutics (Suzhou) Co., Ltd. Suzhou China
| | - M. Wang
- PersonGen BioTherapeutics (Suzhou) Co., Ltd. PersonGen BioTherapeutics (Suzhou) Co., Ltd. Suzhou China
| | - L. Zhang
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - L. Li
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - X. Li
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - X. Wang
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - Z. Sun
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - H. Yu
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - Z. Li
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - F. Nan
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - Y. Chang
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - Z. Zhou
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - J. Yan
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - J. Li
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - Y. Wang
- PersonGen‐Anke Cellular Therapeutics Co., Ltd PersonGen‐Anke Cellular Therapeutics Co., Ltd Suzhou China
| | - F. You
- PersonGen BioTherapeutics (Suzhou) Co., Ltd. PersonGen BioTherapeutics (Suzhou) Co., Ltd. Suzhou China
| | - Y. Wang
- PersonGen BioTherapeutics (Suzhou) Co., Ltd. PersonGen BioTherapeutics (Suzhou) Co., Ltd. Suzhou China
| | - S. Xiang
- PersonGen BioTherapeutics (Suzhou) Co., Ltd. PersonGen BioTherapeutics (Suzhou) Co., Ltd. Suzhou China
| | - Y. Chen
- PersonGen‐Anke Cellular Therapeutics Co., Ltd PersonGen‐Anke Cellular Therapeutics Co., Ltd Suzhou China
| | - G. Pan
- PersonGen‐Anke Cellular Therapeutics Co., Ltd PersonGen‐Anke Cellular Therapeutics Co., Ltd Suzhou China
| | - H. Xu
- PersonGen‐Anke Cellular Therapeutics Co., Ltd PersonGen‐Anke Cellular Therapeutics Co., Ltd Suzhou China
| | - B. Zhang
- PersonGen BioTherapeutics (Suzhou) Co., Ltd. PersonGen BioTherapeutics (Suzhou) Co., Ltd. Suzhou China
| | - L. Yang
- PersonGen BioTherapeutics (Suzhou) Co., Ltd. PersonGen BioTherapeutics (Suzhou) Co., Ltd. Suzhou China
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21
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Su R, Xie C, Alhassan SI, Huang S, Chen R, Xiang S, Wang Z, Huang L. Oxygen Reduction Reaction in the Field of Water Environment for Application of Nanomaterials. Nanomaterials (Basel) 2020; 10:E1719. [PMID: 32872678 PMCID: PMC7559498 DOI: 10.3390/nano10091719] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 08/26/2020] [Accepted: 08/28/2020] [Indexed: 12/28/2022]
Abstract
Water pollution has caused the ecosystem to be in a state of imbalance for a long time. It has become a major global ecological and environmental problem today. Solving the potential hidden dangers of pollutants and avoiding unauthorized access to resources has become the necessary condition and important task to ensure the sustainable development of human society. To solve such problems, this review summarizes the research progress of nanomaterials in the field of water aimed at the treatment of water pollution and the development and utilization of new energy. The paper also tries to seek scientific solutions to environmental degradation and to create better living environmental conditions from previously published cutting edge research. The main content in this review article includes four parts: advanced oxidation, catalytic adsorption, hydrogen, and oxygen production. Among a host of other things, this paper also summarizes the various ways by which composite nanomaterials have been combined for enhancing catalytic efficiency, reducing energy consumption, recycling, and ability to expand their scope of application. Hence, this paper provides a clear roadmap on the status, success, problems, and the way forward for future studies.
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Affiliation(s)
- Rongkui Su
- School of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; (R.S.); (S.H.); (R.C.); (S.X.)
| | - Chuyue Xie
- School of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; (R.S.); (S.H.); (R.C.); (S.X.)
| | | | - Shunhong Huang
- School of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; (R.S.); (S.H.); (R.C.); (S.X.)
| | - Runhua Chen
- School of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; (R.S.); (S.H.); (R.C.); (S.X.)
| | - Siyuan Xiang
- School of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; (R.S.); (S.H.); (R.C.); (S.X.)
| | - Zhenxing Wang
- South China Institute of Environmental Sciences, Ministry of Ecology and Environment of the People’s Republic of China, Guangzhou 510655, China;
| | - Lei Huang
- School of Metallurgy and Environment, Central South University, Changsha 410083, China;
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
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22
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Liu W, Xiang S, Liu X, Yang B. Underwater Superoleophobic Surface Based on Silica Hierarchical Cylinder Arrays with a Low Aspect Ratio. ACS Nano 2020; 14:9166-9175. [PMID: 32644775 PMCID: PMC7460563 DOI: 10.1021/acsnano.0c04670] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 07/09/2020] [Indexed: 06/11/2023]
Abstract
A superantiwetting surface based on low-aspect-ratio hierarchical cylinder arrays (HCAs) was successfully obtained on a silica substrate by colloidal lithography with photolithography. Colloidal lithography is a technique involving transfer of a pattern to a substrate by etching or exposure to a radiation source through a mask composed of a packed colloidal crystal, while photolithography is utilized by which a pattern is transferred photographically to a photoresist-coated substrate, and the substrate is subsequently etched. The surface provides an alternative approach to apply aligned micro-nano integrated structures with a relatively low aspect ratio in superantiwetting. The obtained HCAs successfully integrated micro- and nanoscale structures into one system, and the physical structure of the HCAs can be tuned by modulating the fabrication approach. Using a postmodification process, the underwater-oil wetting behavior of cylinder-array based surfaces can be easily modulated from the superoleophobic state (an oil contact angle (OCA) of 161°) to oleophilic state (an OCA of 19°). Moreover, the underwater-oil wettability can be reversibly transformed from the superoleophobic state (an OCA of approximately 153°) into the oleophilic state (an OCA of approximately 31°) by grafting stimuli-responsive polymer (PNIPAAm) brushes onto this specific hierarchical structure. Due to the temperature-responsive property, modifying the surface with PNIPAAm provides a possibility to control the oil wettability (repellent or sticky) by temperature, which will benefit the use of HCAs in oil-water separation and other application fields.
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Affiliation(s)
- Wendong Liu
- State
Key Laboratory of Supramolecular Structure and Materials, College
of Chemistry, Jilin University, Changchun 130012, People’s Republic of China
- Max
Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany
| | - Siyuan Xiang
- State
Key Laboratory of Supramolecular Structure and Materials, College
of Chemistry, Jilin University, Changchun 130012, People’s Republic of China
- Max
Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany
| | - Xueyao Liu
- State
Key Laboratory of Supramolecular Structure and Materials, College
of Chemistry, Jilin University, Changchun 130012, People’s Republic of China
| | - Bai Yang
- State
Key Laboratory of Supramolecular Structure and Materials, College
of Chemistry, Jilin University, Changchun 130012, People’s Republic of China
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Li Z, Du Y, Xiang S, Feng B, Bian Y, Qian W, Jin J, Lin J, Weng X. Risk factors of perioperative complications and transfusion following total hip arthroplasty in systemic lupus erythematosus patients. Lupus 2019; 28:1134-1140. [PMID: 31296142 DOI: 10.1177/0961203319862609] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND In recent years, hip arthroplasty rates in systemic lupus erythematosus (SLE) patients have been increasing rapidly. Although patients with SLE generally show beneficial or desirable functional outcomes following total hip arthroplasty (THA), it has been reported that SLE patients after THA have increased risk of postoperative complications, especially during the period of hospitalization. OBJECTIVES In the present study, we aimed to identify possible factors associated with complications or transfusion of THA in SLE patients during hospitalization. METHODS The present study was a retrospective study conducted in Peking Union Medical College Hospital. Data were collected from medical records of patients who underwent THA from January 2012 to June 2018. The primary outcome variable was perioperative complications, which was defined as having one or more of the following conditions: high fever, infection, impaired wound healing, venous thrombosis of the lower extremities, hematoma, arrhythmia, implant complications. The secondary outcome was perioperative transfusion. RESULTS During January 2012 to June 2018, 100 patients had taken the surgery of THA. After multivariate analysis, independent risk factors for perioperative complications were: age ≥ 45 years (p = 0.001), SLE with other connective tissue diseases (p = 0.029), high temperature (p = 0.030), positive anti-dsDNA antibody (p = 0.043), and Systemic Lupus International Collaborative Clinics/American College of Rheumatology (SLICC/ACR) Damage Index ≥ 3 (p = 0.008). Independent risk factors for perioperative transfusion were bilateral THA (p = 0.029), low hemoglobin (p = 0.021) and abnormal renal function (p = 0.021). CONCLUSION For SLE patients following THA, age > 45 years, SLE with other connective tissue disease, high temperature, positive anti-dsDNA antibody and SLICC/ACR Damage Index ≥ 3 were the risk factors of complications during hospitalization and bilateral THA, low hemoglobin and abnormal renal function were the risk factors of transfusion.
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Affiliation(s)
- Z Li
- 1 Department of Orthopedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing, China
| | - Y Du
- 2 Office of Clinical Epidemiology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - S Xiang
- 3 Department of Joint Surgery, The Affiliated Hospital of Qingdao University, China
| | - B Feng
- 1 Department of Orthopedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing, China
| | - Y Bian
- 1 Department of Orthopedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing, China
| | - W Qian
- 1 Department of Orthopedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing, China
| | - J Jin
- 1 Department of Orthopedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing, China
| | - J Lin
- 1 Department of Orthopedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing, China
| | - X Weng
- 1 Department of Orthopedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing, China
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Zhang Y, Xiang S, Guo X, Wen A, Hao Y. All-optical inhibitory dynamics in photonic neuron based on polarization mode competition in a VCSEL with an embedded saturable absorber. Opt Lett 2019; 44:1548-1551. [PMID: 30933087 DOI: 10.1364/ol.44.001548] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Accepted: 02/15/2019] [Indexed: 06/09/2023]
Abstract
An all-optical spike inhibition scheme based on polarization-mode competition (PMC) in a vertical-cavity surface-emitting laser (VCSEL) with an embedded saturable absorber is proposed and investigated numerically. The inhibitory dynamics is characterized by spike amplitude and first-spike latency (FSL) for the first time, to the best of our knowledge. The effects of time differences between inhibitory and excitatory inputs, inputs strengths, bias current, as well as noise on the spike amplitude and FSL are examined. The results show that a spike can be triggered in the y-polarization mode by excitatory input and can be inhibited in the presence of inhibitory input due to PMC.
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25
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Xiang S, Tang HW, Zhou J, Li XZ. Electrospinning of Hydroxypropyl-beta-cyclodextrin/Polyvinylpyrrolidone Resveratrol-loaded Nanofibers: Preparation and Characterization. Indian J Pharm Sci 2019. [DOI: 10.36468/pharmaceutical-sciences.552] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Chen Y, Xiang S, Wang L, Wang M, Wang C, Liu S, Zhang K, Yang B. Hollow Polypyrrole Nanospindles for Highly Effective Cancer Therapy. Chempluschem 2018; 83:1127-1134. [PMID: 31950703 DOI: 10.1002/cplu.201800430] [Citation(s) in RCA: 9] [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: 08/13/2018] [Revised: 10/15/2018] [Indexed: 11/10/2022]
Abstract
Polypyrrole (PPy) hollow nanostructures continue to attract the interest researchers because of their good biocompatibility, high photothermal conversion efficiency, and excellent stability. The preparation of PPy hollow nanostructures by the hard templating method without complicated post-synthetic treatment and additional oxidizing agents remains a challenge. In this work, we report a facile and novel hard templating method to fabricate hollow PPy nanospindles in which MIL-88(Fe) serves as the template. Fe3+ centers in MIL-88(Fe) could induce the polymerization of pyrrole to construct the shell, and MIL-88(Fe) would be decomposed by solvent water. This method did not require any extra oxidizing agents and post-synthetic treatment. Hollow PPy nanospindles exhibit excellent photothermal and drug loading ability, and the therapy effect of cancer was significant. This method provides a new hard templating approach for the synthesis of polymer hollow nanostructures.
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Affiliation(s)
- Yixin Chen
- State Key Laboratory of Supramolecular Structure and Materials College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Siyuan Xiang
- State Key Laboratory of Supramolecular Structure and Materials College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Lu Wang
- Department of Oral Pathology School and Hospital of Stomatology, Jilin University, Changchun, 130021, P. R. China
| | - Mingyue Wang
- State Key Laboratory of Supramolecular Structure and Materials College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Congcong Wang
- State Key Laboratory of Supramolecular Structure and Materials College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Shuwei Liu
- State Key Laboratory of Supramolecular Structure and Materials College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Kai Zhang
- State Key Laboratory of Supramolecular Structure and Materials College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Bai Yang
- State Key Laboratory of Supramolecular Structure and Materials College of Chemistry, Jilin University, Changchun, 130012, P. R. China
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Deniz CM, Xiang S, Hallyburton RS, Welbeck A, Babb JS, Honig S, Cho K, Chang G. Segmentation of the Proximal Femur from MR Images using Deep Convolutional Neural Networks. Sci Rep 2018; 8:16485. [PMID: 30405145 PMCID: PMC6220200 DOI: 10.1038/s41598-018-34817-6] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 10/26/2018] [Indexed: 11/20/2022] Open
Abstract
Magnetic resonance imaging (MRI) has been proposed as a complimentary method to measure bone quality and assess fracture risk. However, manual segmentation of MR images of bone is time-consuming, limiting the use of MRI measurements in the clinical practice. The purpose of this paper is to present an automatic proximal femur segmentation method that is based on deep convolutional neural networks (CNNs). This study had institutional review board approval and written informed consent was obtained from all subjects. A dataset of volumetric structural MR images of the proximal femur from 86 subjects were manually-segmented by an expert. We performed experiments by training two different CNN architectures with multiple number of initial feature maps, layers and dilation rates, and tested their segmentation performance against the gold standard of manual segmentations using four-fold cross-validation. Automatic segmentation of the proximal femur using CNNs achieved a high dice similarity score of 0.95 ± 0.02 with precision = 0.95 ± 0.02, and recall = 0.95 ± 0.03. The high segmentation accuracy provided by CNNs has the potential to help bring the use of structural MRI measurements of bone quality into clinical practice for management of osteoporosis.
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Affiliation(s)
- Cem M Deniz
- Department of Radiology, New York University School of Medicine, New York, NY, 10016, USA.
- Bernard and Irene Schwartz Center for Biomedical Imaging, New York University School of Medicine, New York, NY, 10016, USA.
| | - Siyuan Xiang
- Center for Data Science, New York University, New York, NY, 10012, USA
| | | | - Arakua Welbeck
- Bernard and Irene Schwartz Center for Biomedical Imaging, New York University School of Medicine, New York, NY, 10016, USA
| | - James S Babb
- Bernard and Irene Schwartz Center for Biomedical Imaging, New York University School of Medicine, New York, NY, 10016, USA
| | - Stephen Honig
- Osteoporosis Center, Hospital for Joint Diseases, New York University Langone Medical Center, New York, NY, 10003, USA
| | - Kyunghyun Cho
- Center for Data Science, New York University, New York, NY, 10012, USA
- Courant Institute of Mathematical Science, New York University, New York, NY, 10012, USA
| | - Gregory Chang
- Department of Radiology, New York University School of Medicine, New York, NY, 10016, USA
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Fang L, Liu X, Xiang S, Liu W, Shen H, Li Z, Zhang K, Song W, Yang B. Large-scale Au nanoparticle cluster arrays with tunable particle numbers evolved from colloidal lithography. Nanotechnology 2018; 29:405301. [PMID: 30010616 DOI: 10.1088/1361-6528/aad3a3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The assembly of metal nanoparticles (NPs) can regulate their plasmon resonance properties to pursue the best properties for applications. However, the controllable assembly of large-scale metal NP cluster arrays remains a significant challenge. This paper presents a novel strategy to prepare large-scale Au NP cluster arrays based on colloidal lithography and template-guided self-assembly technique. The NPs arrays are fabricated by introducing Au NPs onto the quaternized poly(2-(dimethylamino)ethyl methacrylate) (PDMAEMA) brush templates via electrostatic interaction. The number of Au NPs in cluster can be arbitrarily tuned by changing the surface area of the polymer templates created by colloidal lithography, which resulted in tunable plasmonic properties. The prepared Au NP cluster arrays were used for surface enhanced Raman scattering (SERS) and the SERS properties of the Au NP cluster arrays were studied.
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Affiliation(s)
- Liping Fang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China. College of Chemistry and Environmental Science, Hebei University, Baoding 071002, People's Republic of China
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29
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Xiang S, Lian F. Effects of bushen huatan recipe on the AKT-GLUT4 insulin signal pathway of ovarian granular cells in polycystic ovarian syndrome and IVF outcomes in these infertile patients. Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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30
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Kern B, Budihardjo JD, Mermulla S, Quan A, Cadmi C, Lopez J, Khusheim M, Xiang S, Park J, Furtmüller GJ, Sarhane KA, Schneeberger S, Lee WPA, Hoke A, Tuffaha SH, Brandacher G. A Novel Rodent Orthotopic Forelimb Transplantation Model That Allows for Reliable Assessment of Functional Recovery Resulting From Nerve Regeneration. Am J Transplant 2017; 17:622-634. [PMID: 27500557 DOI: 10.1111/ajt.14007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 07/28/2016] [Accepted: 08/04/2016] [Indexed: 01/25/2023]
Abstract
Improved nerve regeneration and functional outcomes would greatly enhance the utility of vascularized composite allotransplantation (VCA) such as hand and upper extremity transplantation. However, research aimed at achieving this goal has been limited by the lack of a functional VCA animal model. We have developed a novel rat midhumeral forelimb transplant model that allows for the characterization of upper extremity functional recovery following transplantation. At the final end point of 12 weeks, we found that animals with forelimb transplantation including median, ulnar and radial nerve coaptation demonstrated significantly improved grip strength and forelimb function as compared to forelimb transplantation without nerve approximation (grip strength: 1.71N ± 0.57 vs. no appreciable recovery; IBB scale: 2.6 ± 0.7? vs. 0.8 ± 0.40; p = 0.0005), and similar recovery to nerve transection-and-repair only (grip strength: 1.71N ± 0.57 vs. 2.03 ± 0.42.6; IBB scale: 2.6 ± 0.7 vs. 2.8 ± 0.8; p = ns). Moreover, all forelimb transplant animals with nerve coaptation displayed robust axonal regeneration with myelination and reduced flexor muscle atrophy when compared to forelimb transplant animals without nerve coaptation. In conclusion, this is the first VCA small-animal model that allows for reliable and reproducible measurement of behavioral functional recovery in addition to histologic evaluation of nerve regeneration and graft reinnervation.
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Affiliation(s)
- B Kern
- Department of Plastic and Reconstructive Surgery, Vascularized Composite Allotransplantation (VCA) Laboratory, Johns Hopkins University School of Medicine, Baltimore, MD.,Department of Visceral, Transplant, and Thoracic Surgery, Innsbruck Medical University, Innsbruck, Austria
| | - J D Budihardjo
- Department of Plastic and Reconstructive Surgery, Vascularized Composite Allotransplantation (VCA) Laboratory, Johns Hopkins University School of Medicine, Baltimore, MD
| | - S Mermulla
- Department of Plastic and Reconstructive Surgery, Vascularized Composite Allotransplantation (VCA) Laboratory, Johns Hopkins University School of Medicine, Baltimore, MD
| | - A Quan
- Department of Plastic and Reconstructive Surgery, Vascularized Composite Allotransplantation (VCA) Laboratory, Johns Hopkins University School of Medicine, Baltimore, MD
| | - C Cadmi
- Department of Plastic and Reconstructive Surgery, Vascularized Composite Allotransplantation (VCA) Laboratory, Johns Hopkins University School of Medicine, Baltimore, MD
| | - J Lopez
- Department of Plastic and Reconstructive Surgery, Vascularized Composite Allotransplantation (VCA) Laboratory, Johns Hopkins University School of Medicine, Baltimore, MD
| | - M Khusheim
- Department of Plastic and Reconstructive Surgery, Vascularized Composite Allotransplantation (VCA) Laboratory, Johns Hopkins University School of Medicine, Baltimore, MD
| | - S Xiang
- Department of Plastic and Reconstructive Surgery, Vascularized Composite Allotransplantation (VCA) Laboratory, Johns Hopkins University School of Medicine, Baltimore, MD
| | - J Park
- Department of Neurology and Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD
| | - G J Furtmüller
- Department of Plastic and Reconstructive Surgery, Vascularized Composite Allotransplantation (VCA) Laboratory, Johns Hopkins University School of Medicine, Baltimore, MD
| | - K A Sarhane
- Department of Plastic and Reconstructive Surgery, Vascularized Composite Allotransplantation (VCA) Laboratory, Johns Hopkins University School of Medicine, Baltimore, MD
| | - S Schneeberger
- Department of Visceral, Transplant, and Thoracic Surgery, Innsbruck Medical University, Innsbruck, Austria
| | - W P A Lee
- Department of Plastic and Reconstructive Surgery, Vascularized Composite Allotransplantation (VCA) Laboratory, Johns Hopkins University School of Medicine, Baltimore, MD
| | - A Hoke
- Department of Neurology and Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD
| | - S H Tuffaha
- Department of Plastic and Reconstructive Surgery, Vascularized Composite Allotransplantation (VCA) Laboratory, Johns Hopkins University School of Medicine, Baltimore, MD
| | - G Brandacher
- Department of Plastic and Reconstructive Surgery, Vascularized Composite Allotransplantation (VCA) Laboratory, Johns Hopkins University School of Medicine, Baltimore, MD
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Abstract
Dodecahedral carbon nanocages modified with Fe3O4 NPs (Fe3O4/C NCs) were constructed using ZIF-8 as template and polydopamine as carbon source. The NCs display controllable feature structures with Fe3O4 NPs homogenously distributed, which enriched the function of the C NCs.
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Affiliation(s)
- Siyuan Xiang
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- People's Republic of China
| | - Yanhong Shi
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Kai Zhang
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- People's Republic of China
| | - Yixin Chen
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- People's Republic of China
| | - Rui Ge
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- People's Republic of China
| | - Ce Wu
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- People's Republic of China
| | - Haizhu Sun
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Bai Yang
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- People's Republic of China
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32
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Li N, Liu B, Xiang S, Shi L. Similar enhancement of BK(Ca) channel function despite different aerobic exercise frequency in aging cerebrovascular myocytes. Physiol Res 2016; 65:447-59. [PMID: 27070745 DOI: 10.33549/physiolres.933111] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Aerobic exercise showed beneficial influence on cardiovascular systems in aging, and mechanisms underlying vascular adaption remain unclear. Large-conductance Ca(2+)-activated K(+) (BK(Ca)) channels play critical roles in regulating cellular excitability and vascular tone. This study determined the effects of aerobic exercise on aging-associated functional changes in BK(Ca) channels in cerebrovascular myocytes, Male Wistar rats aged 20-22 months were randomly assigned to sedentary (O-SED), low training frequency (O-EXL), and high training frequency group (O-EXH). Young rats were used as control. Compared to young rats, whole-cell BK(Ca) current was decreased, and amplitude of spontaneous transient outward currents were reduced. The open probability and Ca(2+)/voltage sensitivity of single BK(Ca) channel were declined in O-SED, accompanied with a reduction of tamoxifen-induced BK(Ca) activation; the mean open time of BK(Ca) channels was shortened whereas close time was prolonged. Aerobic exercise training markedly alleviated the aging-associated decline independent of training frequency. Exercise three times rather than five times weekly may be a time and cost-saving training volume required to offer beneficial effects to offset the functional declines of BK(Ca) during aging.
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Affiliation(s)
- N Li
- Institute for Fetology, First Hospital of Soochow University, Suzhou, China, Department of Exercise Physiology, Beijing Sport University, Beijing, China.
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33
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Xia Y, Hu H, Shen T, Bai L, Xiang S, Lei Y, Xiao H. Hierarchically porous Pd nanospheres: facile synthesis and their application in HCOOH electrooxidation. Chem Commun (Camb) 2016; 52:10064-7. [DOI: 10.1039/c6cc03841g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
With the help of rhodamine B base, hierarchically porous Pd nanospheres with highly electrocatalytic activity were synthesized very facilely.
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Affiliation(s)
- Youyi Xia
- Department of Polymer Science and Engineering
- School of Chemistry and Chemical Engineering
- Anhui University of Technology
- Maanshan
- People's Republic of China
| | - Hongxia Hu
- Department of Polymer Science and Engineering
- School of Chemistry and Chemical Engineering
- Anhui University of Technology
- Maanshan
- People's Republic of China
| | - Tong Shen
- Department of Polymer Science and Engineering
- School of Chemistry and Chemical Engineering
- Anhui University of Technology
- Maanshan
- People's Republic of China
| | - Linyi Bai
- Division of Chemistry and Biological Chemistry and Division of Physics and Applied Physics
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
| | - Siyuan Xiang
- Division of Chemistry and Biological Chemistry and Division of Physics and Applied Physics
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
| | - Yilong Lei
- Division of Chemistry and Biological Chemistry and Division of Physics and Applied Physics
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
| | - Hongping Xiao
- School of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou
- P. R. China
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34
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Xiang S, Wang D, Zhang K, Liu W, Wu C, Meng Q, Sun H, Yang B. Chelation competition induced polymerization (CCIP): construction of integrated hollow polydopamine nanocontainers with tailorable functionalities. Chem Commun (Camb) 2016; 52:10155-8. [DOI: 10.1039/c6cc05489g] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel CCIP strategy is exploited to construct integrated hollow polydopamine nanocontainers, and Au NRs@PDA NCTs constructed through this method show excellent performance in cancer eradication.
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Affiliation(s)
- Siyuan Xiang
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Dandan Wang
- Department of Oral Pathology
- School and Hospital of Stomatology
- Jilin University
- Changchun 130021
- P. R. China
| | - Kai Zhang
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Wendong Liu
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Ce Wu
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Qingnan Meng
- School of Material Science & Engineering
- Xi'an University of Technology
- Xi'an 710048
- P. R. China
| | - Hongchen Sun
- Department of Oral Pathology
- School and Hospital of Stomatology
- Jilin University
- Changchun 130021
- P. R. China
| | - Bai Yang
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
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Liu W, Liu X, Ge P, Fang L, Xiang S, Zhao X, Shen H, Yang B. Hierarchical-Multiplex DNA Patterns Mediated by Polymer Brush Nanocone Arrays That Possess Potential Application for Specific DNA Sensing. ACS Appl Mater Interfaces 2015; 7:24760-24771. [PMID: 26497053 DOI: 10.1021/acsami.5b07577] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This paper provides a facile and cost-efficient method to prepare single-strand DNA (ssDNA) nanocone arrays and hierarchical DNA patterns that were mediated by poly(2-hydroxyethyl methacrylate) (PHEMA) brush. The PHEMA brush nanocone arrays with different morphology and period were fabricated via colloidal lithography. The hierarchical structure was prepared through the combination of colloidal lithography and traditional photolithography. The DNA patterns were easily achieved via grafting the amino group modified ssDNA onto the side chain of polymer brush, and the anchored DNA maintained their reactivity. The as-prepared ssDNA nanocone arrays can be applied for target DNA sensing with the detection limit reaching 1.65 nM. Besides, with the help of introducing microfluidic ideology, the hierarchical-multiplex DNA patterns on the same substrate could be easily achieved with each kind of pattern possessing one kind of ssDNA, which are promising surfaces for the preparation of rapid, visible, and multiplex DNA sensors.
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Affiliation(s)
- Wendong Liu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University , Changchun 130012, People's Republic of China
| | - Xueyao Liu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University , Changchun 130012, People's Republic of China
| | - Peng Ge
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University , Changchun 130012, People's Republic of China
| | - Liping Fang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University , Changchun 130012, People's Republic of China
| | - Siyuan Xiang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University , Changchun 130012, People's Republic of China
| | - Xiaohuan Zhao
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University , Changchun 130012, People's Republic of China
| | - Huaizhong Shen
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University , Changchun 130012, People's Republic of China
| | - Bai Yang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University , Changchun 130012, People's Republic of China
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Xiang S, Fuji K, Sato S, Xiao S, Bird JP, Aoki N, Ochiai Y. Metal-insulator transition in the quasi-one-dimensional transport of fractional quantum Hall states. J Phys Condens Matter 2015; 27:202201. [PMID: 25920938 DOI: 10.1088/0953-8984/27/20/202201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We investigate edge state transmission in quantum point contacts (QPCs) in the fractional quantum-Hall regime, finding behavior reminiscent of a metal-insulator transition. The transition is suggested by an unusual behavior of the differential conductance in the fractional-quantum-Hall regime, and by the presence of a fixed point and universal scaling in the temperature dependence of the linear conductance. Noting that the 0.7 feature evolves continuously into a last fractional plateau at high magnetic fields, we suggest that this still unresolved feature may itself be viewed as a manifestation of a local, microscopic, metal-insulator transition.
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Affiliation(s)
- S Xiang
- Graduate School of Advanced Integration Science, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
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Fang L, Li Y, Chen Z, Liu W, Zhang J, Xiang S, Shen H, Li Z, Yang B. Tunable polymer brush/Au NPs hybrid plasmonic arrays based on host-guest interaction. ACS Appl Mater Interfaces 2014; 6:19951-19957. [PMID: 25347749 DOI: 10.1021/am505434u] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The fabrication of versatile gold nanoparticle (Au NP) arrays with tunable optical properties by a novel host-guest interaction are presented. The gold nanoparticles were incorporated into polymer brushes by host-guest interaction between β-cyclodextrin (β-CD) ligand of gold nanoparticles and dimethylamino group of poly(2-(dimethylamino)ethyl methacrylate) (PDMAEMA). The gold nanoparticle arrays were prepared through the template of PDMAEMA brush patterns which were fabricated combining colloidal lithography and surface-initiated atom-transfer radical polymerization (SI-ATRP). The structure parameters of gold nanoparticle patterns mediated by polymer brushes such as height, diameters, periods and distances, could be easily tuned by tailoring the etching time or size of colloidal spheres in the process of colloidal lithography. The change of optical properties induced by different gold nanoparticle structures was demonstrated. The direct utilization of PDMAEMA brushes as guest avoids a series of complicated modification process and the PDMAEMA brushes can be grafted on various substrates, which broaden its applications. The prepared gold naoparticle arrays are promising in applications of nanosensors, memory storage and surface enhanced spectroscopy.
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Affiliation(s)
- Liping Fang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University , Changchun 130012, People's Republic of China
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Liu W, Liu X, Fangteng J, Wang S, Fang L, Shen H, Xiang S, Sun H, Yang B. Bioinspired polyethylene terephthalate nanocone arrays with underwater superoleophobicity and anti-bioadhesion properties. Nanoscale 2014; 6:13845-13853. [PMID: 25303770 DOI: 10.1039/c4nr04471a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
This paper presents a facile method to fabricate bioinspired polyethylene terephthalate (PET) nanocone arrays via colloidal lithography. The aspect ratio (AR) of the nanocones can be finely modulated ranging from 1 to 6 by regulating the etching time. The samples with the AR value of 6 can present underwater superoleophobicity with the underwater oil contact angle (OCA) of 171.8°. The as-prepared PET nanocone arrays perform anti-bioadhesion behavior, which inhibits the formation of the actin cytoskeleton when it used as the substrate for cell culture. Moreover, the oil wettability is temperature controlled after modifying the PET nanocone arrays with PNIPAAm film, and the oil wettability of the functionalized nanocone arrays can be transformed from the superoleophobic state with OCA about 151° to the oleophilic state with OCA about 25° reversibly. Due to the high-throughput, parallel fabrication and cost-efficiency of this method, it will be favourable for researchers to introduce oleophobic properties to various substrate and device surfaces. Due to the superoleophobicity and simple functionalizing properties, the PET nanocone arrays are very promising surfaces for anti-adhesion, self-cleaning and have potential applications in material, medical, and biological fields.
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Affiliation(s)
- Wendong Liu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China.
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Cupelli ET, Escallier L, Galambos N, Xiang S, Franco I. Sensory processing differences and urinary incontinence in school-aged children. J Pediatr Urol 2014; 10:880-5. [PMID: 24636484 DOI: 10.1016/j.jpurol.2014.01.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2013] [Accepted: 01/03/2014] [Indexed: 12/31/2022]
Abstract
OBJECTIVE Urinary Incontinence (UI) is a common problem among school-aged children (5-11 years). Symptoms such as urgency, diminished awareness of wetting, or apparent apathy may represent differences in sensory processing (SP). This study aims to describe the SP abilities of incontinent school-aged children with typical development to determine if they differ from established norms for continent children. MATERIALS AND METHODS The SP abilities of 209 school-aged children with UI were evaluated using the short sensory profile (SSP), a judgment-based caregiver questionnaire, then compared with established norms using descriptive and inferential statistics. RESULTS Forty-four percent of children showed significant differences in global SP with the greatest differences noted in tactile sensitivity. Higher section subscores were also noted in "seeks sensation/under responsive" and "auditory sensitivity". Children with dysfunctional voiding (DV) were more likely to show global differences (p = 0.015), differences in "seeks sensation" (p = 0.006), and auditory sensitivity (p = 0.041). The odds for low tactile sensitivity scores were five times greater for children with UI and DV (p = 0.006). CONCLUSION These results suggest that differences in SP may be found among typical school aged children with UI. Continued research is indicated to understand the significance of the study results.
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Affiliation(s)
- E T Cupelli
- Maimonides Medical Center & Pediatric Urology Associates, 909 49th Street, Brooklyn, New York 11219, NY, USA.
| | - L Escallier
- Stony Brook University HSC, Room 224, Stony Brook, New York 11794, NY, USA
| | - N Galambos
- Maimonides Medical Center & Pediatric Urology Associates, 909 49th Street, Brooklyn, New York 11219, NY, USA
| | - S Xiang
- Maimonides Medical Center & Pediatric Urology Associates, 909 49th Street, Brooklyn, New York 11219, NY, USA
| | - I Franco
- New York Medical College, Vallhalla, New York, USA; Pediatric Urology Associates, 909 49th St., Brooklyn, New York 11219, NY, USA
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Affiliation(s)
- Yuanqian Luo
- Department of Electrical and Computer EngineeringUniversity of VictoriaVictoriaBCV8W 3P6Canada
| | - Ruonan Zhang
- Northwestern Polytechnical UniversityXi'anShaanxiPeople's Republic of China
| | - Lin Cai
- Department of Electrical and Computer EngineeringUniversity of VictoriaVictoriaBCV8W 3P6Canada
| | - Siyuan Xiang
- Department of Electrical and Computer EngineeringUniversity of VictoriaVictoriaBCV8W 3P6Canada
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Song Y, Zhu S, Xiang S, Zhao X, Zhang J, Zhang H, Fu Y, Yang B. Investigation into the fluorescence quenching behaviors and applications of carbon dots. Nanoscale 2014; 6:4676-82. [PMID: 24647626 DOI: 10.1039/c4nr00029c] [Citation(s) in RCA: 221] [Impact Index Per Article: 22.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Carbon dots (CDs) are novel fluorescent materials with low toxicity and good biocompatibility. Herein, the collisional/dynamic and photoluminescence (PL) center destruction quenching behaviors of a novel type of CDs were investigated. Moreover, the quenching behaviors of the CDs were exploited in applications. Firstly, dynamic PL quenching was achieved by Fe(3+) ions, which was proved by the Stern-Volmer equation, temperature dependent quenching and fluorescence lifetime measurements. Furthermore, a hemin sensor based on the Fe(3+)/CDs system was achieved. Secondly, quenching induced by PL center destruction was caused by hydroxyl radicals (˙OH), which were produced by high power UV light or the H2O2/Fe(2+) system; thus an H2O2 sensor with a low detection limit (0.9 ppb) was realized. Finally, we assumed that the CDs are really composed of cross-linked molecular clusters, and that the PL centers of the as prepared CDs are certain molecular/chemical groups.
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Affiliation(s)
- Yubin Song
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China.
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Xiang S, Xiao S, Fuji K, Shibuya K, Endo T, Yumoto N, Morimoto T, Aoki N, Bird JP, Ochiai Y. On the zero-bias anomaly and Kondo physics in quantum point contacts near pinch-off. J Phys Condens Matter 2014; 26:125304. [PMID: 24599094 DOI: 10.1088/0953-8984/26/12/125304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We investigate the linear and non-linear conductance of quantum point contacts (QPCs), in the region near pinch-off where Kondo physics has previously been connected to the appearance of the 0.7 feature. In studies of seven different QPCs, fabricated in the same high-mobility GaAs/AlGaAs heterojunction, the linear conductance is widely found to show the presence of the 0.7 feature. The differential conductance, on the other hand, does not generally exhibit the zero-bias anomaly (ZBA) that has been proposed to indicate the Kondo effect. Indeed, even in the small subset of QPCs found to exhibit such an anomaly, the linear conductance does not always follow the universal temperature-dependent scaling behavior expected for the Kondo effect. Taken collectively, our observations demonstrate that, unlike the 0.7 feature, the ZBA is not a generic feature of low-temperature QPC conduction. We furthermore conclude that the mere observation of the ZBA alone is insufficient evidence for concluding that Kondo physics is active. While we do not rule out the possibility that the Kondo effect may occur in QPCs, our results appear to indicate that its observation requires a very strict set of conditions to be satisfied. This should be contrasted with the case of the 0.7 feature, which has been apparent since the earliest experimental investigations of QPC transport.
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Affiliation(s)
- S Xiang
- Graduate School of Advanced Integration Science, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
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Meng Q, Zhang F, Wang L, Xiang S, Zhu S, Zhang G, Zhang K, Yang B. Facile fabrication of mesoporous N-doped Fe3O4@C nanospheres as superior anodes for Li-ion batteries. RSC Adv 2014. [DOI: 10.1039/c3ra44153a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Cernicchiaro N, Renter DG, Xiang S, White BJ, Bello NM. Hierarchical Bayesian modeling of heterogeneous variances in average daily weight gain of commercial feedlot cattle. J Anim Sci 2013; 91:2910-9. [PMID: 23482583 DOI: 10.2527/jas.2012-5543] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Variability in ADG of feedlot cattle can affect profits, thus making overall returns more unstable. Hence, knowledge of the factors that contribute to heterogeneity of variances in animal performance can help feedlot managers evaluate risks and minimize profit volatility when making managerial and economic decisions in commercial feedlots. The objectives of the present study were to evaluate heteroskedasticity, defined as heterogeneity of variances, in ADG of cohorts of commercial feedlot cattle, and to identify cattle demographic factors at feedlot arrival as potential sources of variance heterogeneity, accounting for cohort- and feedlot-level information in the data structure. An operational dataset compiled from 24,050 cohorts from 25 U. S. commercial feedlots in 2005 and 2006 was used for this study. Inference was based on a hierarchical Bayesian model implemented with Markov chain Monte Carlo, whereby cohorts were modeled at the residual level and feedlot-year clusters were modeled as random effects. Forward model selection based on deviance information criteria was used to screen potentially important explanatory variables for heteroskedasticity at cohort- and feedlot-year levels. The Bayesian modeling framework was preferred as it naturally accommodates the inherently hierarchical structure of feedlot data whereby cohorts are nested within feedlot-year clusters. Evidence for heterogeneity of variance components of ADG was substantial and primarily concentrated at the cohort level. Feedlot-year specific effects were, by far, the greatest contributors to ADG heteroskedasticity among cohorts, with an estimated ∼12-fold change in dispersion between most and least extreme feedlot-year clusters. In addition, identifiable demographic factors associated with greater heterogeneity of cohort-level variance included smaller cohort sizes, fewer days on feed, and greater arrival BW, as well as feedlot arrival during summer months. These results support that heterogeneity of variances in ADG is prevalent in feedlot performance and indicate potential sources of heteroskedasticity. Further investigation of factors associated with heteroskedasticity in feedlot performance is warranted to increase consistency and uniformity in commercial beef cattle production and subsequent profitability.
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Affiliation(s)
- N Cernicchiaro
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan 66506, USA
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Xiang S, Mao L, Duplessis T, Yuan L, Dauchy R, Dauchy E, Blask DE, Frasch T, Hill SM. Oscillation of clock and clock controlled genes induced by serum shock in human breast epithelial and breast cancer cells: regulation by melatonin. Breast Cancer (Auckl) 2012; 6:137-50. [PMID: 23012497 PMCID: PMC3448497 DOI: 10.4137/bcbcr.s9673] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
This study investigates differences in expression of clock and clock-controlled genes (CCGs) between human breast epithelial and breast cancer cells and breast tumor xenografts in circadian intact rats and examines if the pineal hormone melatonin influences clock gene and CCG expression. Oscillation of clock gene expression was not observed under standard growth conditions in vitro, however, serum shock (50% horse serum for 2 h) induced oscillation of clock gene and CCG expression in MCF-10A cells, which was repressed or disrupted in MCF-7 cells. Melatonin administration following serum shock differentially suppressed or induced clock gene (Bmal1 and Per2) and CCG expression in MCF10A and MCF-7 cells. These studies demonstrate the lack of rhythmic expression of clock genes and CCGs of cells in vitro and that transplantation of breast cancer cells as xenografts into circadian competent hosts re-establishes a circadian rhythm in the peripheral clock genes of tumor cells.
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Affiliation(s)
- S Xiang
- Department of Structural and Cellular Biology, Tulane University School of Medicine, 1430 Tulane Avenue, New Orleans, LA 70112, USA
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Meng Q, Xiang S, Zhang K, Wang M, Bu X, Xue P, Liu L, Sun H, Yang B. A facile two-step etching method to fabricate porous hollow silica particles. J Colloid Interface Sci 2012; 384:22-8. [PMID: 22818793 DOI: 10.1016/j.jcis.2012.06.043] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2012] [Revised: 06/13/2012] [Accepted: 06/15/2012] [Indexed: 11/28/2022]
Abstract
We report here the fabrication of hollow silica particles with mesopores larger than 10nm on their wall via a facile two-step etching method. Different from the conventional template method, the new method uses the silica particles as starting materials, which were synthesized using the well-known Stöber method. In the hollow silica preparation, first, we gently etch the silica particles with a NaOH solution without using template molecules to make them porous. Then, we coat the porous silica particles with poly-dimethyldiallylammonium chloride (PDDA) and treat the PDDA-coated porous silica with an ammonia solution to form the hollow silica nanospheres. In this study, we found that the NaOH dosage and ammonia concentration have significant impact on the morphology of the final products. Adsorption was also studied and results show that the hollow nanospheres can effectively uptake protein-based biomolecules (hemoglobin).
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Affiliation(s)
- Qingnan Meng
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, PR China
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Tong L, Xiang S, Mandel C, Bai Y, Manley J. Structural studies of pre-mRNA 3′-end processing. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308097092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Zhang F, Chen XP, Zhang W, Dong HH, Xiang S, Zhang WG, Zhang BX. Combined hepatocellular cholangiocarcinoma originating from hepatic progenitor cells: immunohistochemical and double-fluorescence immunostaining evidence. Histopathology 2008; 52:224-32. [PMID: 18184271 DOI: 10.1111/j.1365-2559.2007.02929.x] [Citation(s) in RCA: 136] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
AIMS Combined hepatocellular cholangiocarcinoma (CHC) is a rare form of primary liver cancer, showing a mixture of hepatocellular and biliary features. Data suggest that most CHC arise from hepatic progenitor cells (HPCs). The aim was to investigate the origin of CHC. METHODS AND RESULTS Twelve cases of CHC were studied by immunohistochemistry for hepatocytic (hepPar1, alpha-fetoprotein), cholangiocytic cytokeratin [(CK) 7, CK19], hepatic progenitor cell (OV-6), haematopoietic stem cell (c-kit, CD34), as well as CD45 and chromogranin-A markers. The combination of double-fluorescence immunostaining consisted of HepPar1 with CK19, and c-kit with OV-6. All 12 cases demonstrated more or less transitional areas, with strands/trabeculae of small, uniform, oval-shaped cells including scant cytoplasm and hyperchromatic nuclei embedded within a thick, desmoplastic stroma; however, two cases were found to consist entirely of such transitional areas. Simultaneous co-expression of hepPar1 and CK7, or CK19, was demonstrated in 10/12 (83.3%) cases of CHC. c-kit expression was noted in 10/12 (83.3%) cases, of which 7/10 (70%) showed co-expression of OV-6. CONCLUSIONS The results suggest that CHC are of HPC origin, supporting the concept that human hepatocarcinogenesis may originate from the transformation of HPCs.
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Affiliation(s)
- F Zhang
- Hepatic Surgery Centre, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Yang Y, Ghiran I, Shields H, Xiang S, Fruehauf J, Upton M, LaMont T, Li C. 504 POSTER Centrosome abnormalities occur early and coexist with genomic instability during cancer progression in Barrett's esophagus. EJC Suppl 2006. [DOI: 10.1016/s1359-6349(06)70509-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Huang D, Yang J, Wan W, Ding F, Zhang L, Liu Y, Xiang S. Cholesteric Metallomesogens Containing Optically Active Metal-Tricarbony Moieties. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/10587259608042230] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- D. Huang
- a Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences , Chengdu , 610041 , P.R. China
| | - J. Yang
- a Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences , Chengdu , 610041 , P.R. China
| | - W. Wan
- a Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences , Chengdu , 610041 , P.R. China
| | - F. Ding
- a Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences , Chengdu , 610041 , P.R. China
| | - L. Zhang
- a Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences , Chengdu , 610041 , P.R. China
| | - Y. Liu
- b Department of Chemistry , Sichuan Normal University , Chengdu , 610066 , P.R. China
| | - S. Xiang
- b Department of Chemistry , Sichuan Normal University , Chengdu , 610066 , P.R. China
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