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Cai A, Li Y, Xi X, Wang Q, Yang J, Wang L, Li H, Luo X, Zeng X. Analysis of risk factors and development of predictive model for malnutrition in patients with traumatic brain injury. Nutr Neurosci 2024:1-11. [PMID: 38662341 DOI: 10.1080/1028415x.2024.2342152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Malnutrition is a highly prevalent complication in patients with traumatic brain injury (TBI), and it is closely related to the prognosis of patients. Accurate identification of patients at high risk of malnutrition is essential. Therefore, we analyzed the risk factors of malnutrition in patients with TBI and developed a model to predict the risk of malnutrition. A retrospective collection of 345 patients with TBI, and they were divided into malnutrition and comparison groups according to the occurrence of malnutrition. Univariate correlation and multifactor logistic regression analyses were performed to determine patients' malnutrition risk factors. We used univariate and logistic regression (forward stepwise method) analyses to identify significant predictors associated with malnutrition in patients with TBI and developed a predictive model for malnutrition prediction. The model's discrimination, calibration, and clinical utility were evaluated using the receiver operating characteristic (ROC) curve, calibration plots, and decision curve analysis (DCA). A total of 216 patients (62.6%) developed malnutrition. Multifactorial logistic regression analysis showed that pulmonary infection, urinary tract infection, dysphagia, application of NGT, GCS score ≤ 8, and low ADL score were independent risk factors for malnutrition in patients with TBI (P < 0.05). The area under the curve of the model was 0.947. Calibration plots showed good discrimination of model calibration. DCA showed that the column line plot models were all clinically meaningful when nutritional interventions were performed over a considerable range of threshold probabilities (0-0.98). Malnutrition is widespread in patients with TBI, and the nomogram is a good predictor of whether patients develop malnutrition.
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Affiliation(s)
- Ang Cai
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, People's Republic of China
| | - Yi Li
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, People's Republic of China
| | - Xiao Xi
- Stroke Biological Recovery Laboratory, Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, The Teaching Affiliate of Harvard Medical School, Charlestown, MA, USA
| | - Qingmei Wang
- Stroke Biological Recovery Laboratory, Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, The Teaching Affiliate of Harvard Medical School, Charlestown, MA, USA
| | - Junfeng Yang
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, People's Republic of China
| | - Liugen Wang
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, People's Republic of China
| | - Heping Li
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, People's Republic of China
| | - Xun Luo
- Kerry Rehabilitation Medicine Research Institute, Shenzhen, People's Republic of China
| | - Xi Zeng
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, People's Republic of China
- NHC Key Laboratory of Prevention and Treatment of Cerebrovascular Diseases, Zhengzhou, People's Republic of China
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Zeng H, Cai A, Zhao W, Wu J, Ding Y, Zeng X. Factors and predictive model for malnutrition in poststroke disabled patients: A multicenter cross-sectional study. Nutrition 2024; 123:112423. [PMID: 38583267 DOI: 10.1016/j.nut.2024.112423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/10/2024] [Accepted: 03/07/2024] [Indexed: 04/09/2024]
Abstract
BACKGROUND Although malnutrition has been shown to influence the clinical outcome of poststroke disabled patients, the associated factors and the prediction model have yet to be uncovered. OBJECTIVES This study aims to assess the current prevalence and factors associated with malnutrition in poststroke disabled patients and establish a prediction model. METHODS A multicenter cross-sectional survey among Chinese poststroke disabled patients (≥18 y old) was conducted in 2021. Information on patients' basic data, medical history, Barthel Index, dysphagia, and nutritional status was collected. A multivariable logistic regression model was used to identify the factors that influence malnutrition. Nomogram was developed and internal validation was conducted using 5-fold cross-validation. External validation was performed using the data from a preliminary survey. Receiver operating characteristic (ROC) analysis, calibration curves, and decision curve analysis (DCA) were used to analyze the predictive value of the nomogram. RESULTS Four hundred fifty-seven cases were enrolled, with the prevalence of malnutrition as 71.77%. Age (aOR = 1.039, 95% CI: 1.006-1.078), pulmonary infection (aOR = 4.301, 95% CI: 2.268-14.464), dysphagia (aOR = 24.605, 95% CI: 4.966-191.058), total intake volume (aOR = 0.997, 95% CI: 0.995-0.999), Barthel Index (aOR = 0.965, 95% CI: 0.951-0.980), and nasogastric tube (aOR = 16.529, 95% CI: 7.418-52.518) as nutrition support mode (compared to oral intake) were identified as the associated factors of malnutrition in stroke-disabled patients (P < 0.05). ROC analysis showed that the area under the curve (AUC) for nomogram was 0.854 (95% CI: 0.816-0.892). Fivefold cross-validation showed the mean AUC as 0.829 (95% CI: 0.784-0.873). There were no significant differences between predicted and actual probabilities. The DCA revealed that the model exhibited a net benefit when the risk threshold was between 0 and 0.4. CONCLUSIONS Age, pulmonary infection, dysphagia, nutrition support mode, total intake volume, and Barthel Index were factors associated with malnutrition in stroke-related disabled patients. The nomogram based on the result exhibited good accuracy, consistency and values.
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Affiliation(s)
- Hongji Zeng
- School of Public Health, Zhengzhou University, Zhengzhou, China
| | - Ang Cai
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Weijia Zhao
- School of Public Health, Zhengzhou University, Zhengzhou, China
| | - Junfa Wu
- Department of Rehabilitation Medicine, Huashan Hospital, Fudan University, Shanghai, China; National Center for Neurological Disorders, Shanghai, China
| | - Yu Ding
- Department of Neurology, The Second Medical Center, PLA General Hospital, Beijing, China
| | - Xi Zeng
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; NHC Key Laboratory of Prevention and Treatment of Cerebrovascular Diseases, Zhengzhou, China.
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Crisalli AM, Chen YT, Cai A, Li D, Cho BP. Conformation-dependent lesion bypass of bulky arylamine-dG adducts generated from 2-nitrofluorene in epigenetic sequence contexts. Nucleic Acids Res 2023; 51:12043-12053. [PMID: 37953358 PMCID: PMC10711442 DOI: 10.1093/nar/gkad1038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 09/27/2023] [Accepted: 10/24/2023] [Indexed: 11/14/2023] Open
Abstract
Sequence context influences structural characteristics and repair of DNA adducts, but there is limited information on how epigenetic modulation affects conformational heterogeneity and bypass of DNA lesions. Lesions derived from the environmental pollutant 2-nitrofluorene have been extensively studied as chemical carcinogenesis models; they adopt a sequence-dependent mix of two significant conformers: major groove binding (B) and base-displaced stacked (S). We report a conformation-dependent bypass of the N-(2'-deoxyguanosin-8-yl)-7-fluoro-2-aminofluorene (dG-FAF) lesion in epigenetic sequence contexts (d[5'-CTTCTC#G*NCCTCATTC-3'], where C# is C or 5-methylcytosine (5mC), G* is G or G-FAF, and N is A, T, C or G). FAF-modified sequences with a 3' flanking pyrimidine were better bypassed when the 5' base was 5mC, whereas sequences with a 3' purine exhibited the opposite effect. The conformational basis behind these variations differed; for -CG*C- and -CG*T-, bypass appeared to be inversely correlated with population of the duplex-destabilizing S conformer. On the other hand, the connection between conformation and a decrease in bypass for flanking purines in the 5mC sequences relative to C was more complex. It could be related to the emergence of a disruptive non-S/B conformation. The present work provides novel conformational insight into how 5mC influences the bypass efficiency of bulky DNA damage.
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Affiliation(s)
- Alicia M Crisalli
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Yi-Tzai Chen
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Ang Cai
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Deyu Li
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Bongsup P Cho
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
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Cai A, Xia P, Zhou X, He Y, Lv J. MiR-1275 Targeting SPARC Promotes Gambogic Acid-Induced Inhibition of Gastric Cancer. Biochem Genet 2023; 61:2481-2495. [PMID: 37118619 DOI: 10.1007/s10528-023-10381-1] [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: 12/29/2022] [Accepted: 04/11/2023] [Indexed: 04/30/2023]
Abstract
Gambogic acid (GA) has been observed to effectively impede the progression of numerous types of cancers. In this study, we investigated the effects of miR-1275 and Secreted Protein Acidic and Cysteine Rich (SPARC) on GA in gastric cancer (GC). miR-1275 and SPARC expression were determined in GC cell lines and tissues using reverse transcription-quantitative polymerase chain reaction (RT-qPCR). The correlation between miR-1275 and SPARC expression was ascertained using Pearson's correlation coefficient. Cell proliferation was assessed using the cell counting kit-8 (CCK-8) assay. The Transwell assay was conducted to examine cell migration. A dual-luciferase reporter assay was used to verify the regulatory relationship between miR-1275 and SPARC. The levels of SPARC, Bcl-2, and Bax proteins were estimated using western blotting. To verify the effects of GA on the growth of GC cells in vivo, a tumorigenesis experiment was performed in nude mice. GA suppressed GC cell viability and migration, facilitated apoptosis, and inhibited tumor growth in vivo and in vitro. Low levels of miR-1275 been observed in GC cell lines and tissues. GA-treated GC cells manifested high miR-1275 levels. In functional experiments, miR-1275 enhanced the influence of GA on cell apoptosis, migration, and proliferation. Furthermore, GA treatment suppressed SPARC upregulation in GC cell lines and tissues. Pearson's correlation coefficient revealed that miR-1275 expression negatively correlated with SPARC expression. Mechanistically, miR-1275 promoted growth inhibition in GA-treated GC cells by targeting SPARC. Our study indicates that miR-1275 enhances the suppressive effect of GA on GC progression by inhibiting SPARC expression. Through this study, we contribute to the knowledge of a new mechanism by which GA suppresses GC progression.
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Affiliation(s)
- Ang Cai
- Department of Oncology, Wuhan Hospital of Traditional Chinese Medicine, No. 49, Lihuangpi Road, Jiang'an District, Wuhan, 430014, Hubei, People's Republic of China
| | - Pengfei Xia
- Department of Gastric Diseases and Liver-Gallbladder (Department of Gastroenterology), Wuhan Hospital of Traditional Chinese Medicine, Wuhan, 430014, Hubei, People's Republic of China
| | - Xiaokang Zhou
- Department of Oncology, Wuhan Hospital of Traditional Chinese Medicine, No. 49, Lihuangpi Road, Jiang'an District, Wuhan, 430014, Hubei, People's Republic of China
| | - Yao He
- Department of Oncology, Wuhan Hospital of Traditional Chinese Medicine, No. 49, Lihuangpi Road, Jiang'an District, Wuhan, 430014, Hubei, People's Republic of China
| | - Jun Lv
- Department of Oncology, Wuhan Hospital of Traditional Chinese Medicine, No. 49, Lihuangpi Road, Jiang'an District, Wuhan, 430014, Hubei, People's Republic of China.
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Puopolo T, Cai A, Liu C, Ma H, Seeram NP. Investigating cannabinoids as P2X purinoreceptor 4 ligands by using surface plasmon resonance and computational docking. Heliyon 2023; 9:e21265. [PMID: 37920520 PMCID: PMC10618793 DOI: 10.1016/j.heliyon.2023.e21265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 10/12/2023] [Accepted: 10/18/2023] [Indexed: 11/04/2023] Open
Abstract
P2X purinoceptor 4 (P2X4) is an ATP-gated ion channel receptor with diverse neurophysiological functions, and P2X4 modulators hold promise as potential therapeutics for neuropathic pain, neuroinflammation, and neurodegenerative diseases. While several cannabinoids have been reported as modulators of purinoreceptors, their specific purinoreceptor-binding characteristics remain elusive. In this study, we established a comprehensive workflow that included a binding screening platform and a novel surface plasmon resonance (SPR) competitive assay, complemented by computational docking, to identify potential P2X4 binders among a panel of twenty-eight cannabinoids. Through SPR, we determined the binding affinities of cannabinoids (KD values ranging from 3.4 × 10-4 M to 1 × 10-6 M), along with two known P2X4 antagonists, BX430 (KD = 4.5 × 10-6 M) and 5-BDBD (KD = 7.8 × 10-6 M). The competitive SPR assay validated that BX430 and 5-BDBD acted as non-competitive binders with P2X4. In the following competitive assays, two cannabinoids including cannabidiol (CBD) and cannabivarin (CBV) were identified as competitive P2X4-binders with 5-BDBD, while the remaining cannabinoids exhibited non-competitive binding with either BX430 or 5-BDBD. Our molecular docking experiments further supported these findings, demonstrating that both CBD and CBV shared identical binding sites with residues in the 5-BDBD binding pocket on P2X4. In conclusion, this study provides valuable insights into the P2X4-binding affinity of cannabinoids through SPR and sheds light on the interactions between cannabinoids (CBD and CBV) and P2X4.
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Affiliation(s)
- Tess Puopolo
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Ang Cai
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Chang Liu
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Hang Ma
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Navindra P. Seeram
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
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Puopolo T, Li H, Gutkowski J, Cai A, Seeram NP, Ma H, Liu C. Erratum: Correction Notice: Establishment of Human PD-1/PD-L1 Blockade Assay Based on Surface Plasmon Resonance (SPR) Biosensor. Bio Protoc 2023; 13:e4844. [PMID: 38152682 PMCID: PMC10751579 DOI: 10.21769/bioprotoc.4844] [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] [Received: 02/28/2023] [Revised: 05/03/2023] [Accepted: 05/31/2023] [Indexed: 12/29/2023] Open
Abstract
[This corrects the article .].
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Affiliation(s)
- Tess Puopolo
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Huifang Li
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Justin Gutkowski
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Ang Cai
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Navindra P. Seeram
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Hang Ma
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Chang Liu
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
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Puopolo T, Li H, Gutkowski J, Cai A, Seeram NP, Ma H, Liu C. Establishment of Human PD-1/PD-L1 Blockade Assay Based on Surface Plasmon Resonance (SPR) Biosensor. Bio Protoc 2023; 13:e4765. [PMID: 37575393 PMCID: PMC10415205 DOI: 10.21769/bioprotoc.4765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 05/03/2023] [Accepted: 05/31/2023] [Indexed: 08/15/2023] Open
Abstract
Blockade of the programmed cell death protein 1 (PD-1)/PD-ligand 1 (PD-L1) axis is a promising strategy for cancer immunotherapy. Although antibody-based PD-1/PD-L1 inhibitors have shown remarkable results in clinical cancer studies, their inherent limitations underscore the significance of developing novel PD-1/PD-L1 inhibitors. Small molecule inhibitors have several advantages over antibody-based inhibitors, including favorable tumor penetration and oral bioavailability, fewer side effects, easier administration, preferred biological half-life, and lower cost. However, small molecule inhibitors that directly target the PD-1/PD-L1 interaction are still in the early development stage, partially due to the lack of reliable biophysical assays. Herein, we present a novel PD-1/PD-L1 blockade assay using a surface plasmon resonance (SPR)-based technique. This blockade assay immobilizes human PD-1 on a sensor chip, which interacts with PD-L1 inhibitors or negative PD-L1 binders with human PD-L1 protein at a range of molecular ratios. The binding kinetics of PD-L1 to PD-1 and the blockade rates of small molecules were determined. Compared to other techniques such as PD-1/PD-L1 pair enzyme-linked immunosorbent assay (ELISA) and AlphaLISA immunoassays, our SPR-based method offers real-time and label-free detection with advantages including shorter experimental runs and smaller sample quantity requirements. Key features A SPR protocol screens compounds for their capacity to block the PD-1/PD-L1 interaction. Validation of PD-1/PD-L1 interaction, followed by assessing blockade effects with known inhibitors BMS-1166 and BMS-202, and a negative control NO-Losartan A. Analysis of percentage blockade of PD-1/PD-L1 of the samples to obtain the IC50. Broad applications in the discovery of small molecule-based PD-1/PD-L1 inhibitors for cancer immunotherapy. Graphical overview.
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Affiliation(s)
- Tess Puopolo
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Huifang Li
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Justin Gutkowski
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Ang Cai
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Navindra P. Seeram
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Hang Ma
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Chang Liu
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
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Crisalli AM, Cai A, Cho BP. Probing the Interactions of Perfluorocarboxylic Acids of Various Chain Lengths with Human Serum Albumin: Calorimetric and Spectroscopic Investigations. Chem Res Toxicol 2023; 36:703-713. [PMID: 37001030 DOI: 10.1021/acs.chemrestox.3c00011] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
Abstract
Despite an exponential increase in PFAS research over the past two decades, the mechanisms behind how PFAS cause adverse health effects are still poorly understood. Protein interactions are considered a significant driver of bioaccumulation and subsequent toxicity from re-exposure; however, most of the available literature is limited to legacy PFAS. We utilized microcalorimetric and spectroscopic methods to systematically investigate the binding between human serum albumin (HSA) and perfluorocarboxylic acids (PFCAs) of varying chain lengths and their nonfluorinated fatty acid (FA) counterparts. The results reveal the optimal chain length for significant PFCA-HSA binding and some fundamental interactions, i.e., the polar carboxylic head of PFCA is countered by ionizable amino acids such as arginine, and the fluorocarbon tails stabilized by hydrophobic residues like leucine and valine. Additionally, fluorine's unique polarizability contributes to PFCA's stronger binding affinities relative to the corresponding fatty acids. Based on these observations, we posit that PFCAs likely bind to HSA in a "cavity-filling" manner, provided they have an appropriate size and shape to accommodate the electrostatic interactions. The results reported herein widen the pool of structural information to explain PFAS bioaccumulation patterns and toxicity and support the development of more accurate computational modeling of protein-PFAS interactions. TOC graphic created with Biorender.com.
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Affiliation(s)
- Alicia M Crisalli
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, Rhode Island 02881, United States
| | - Ang Cai
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, Rhode Island 02881, United States
| | - Bongsup P Cho
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, Rhode Island 02881, United States
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Mou XQ, Ren LC, Wang M, Zhang HH, Cai A, Wan KX, Zhang SM, Cui BD, Zhang Y, Chen YZ. Electrochemically Enabled Intramolecular Amino- and Oxysulfonylation of Alkenes with Sodium Sulfinates to Access Sulfonylated Saturated Heterocycles. J Org Chem 2023. [PMID: 36866581 DOI: 10.1021/acs.joc.3c00015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
A practical and efficient electrochemical intramolecular amino- or oxysulfonylation of internal alkenes equipped with pendant nitrogen or oxygen-centered nucleophiles with sodium sulfinate was developed. Under undivided electrolytic cell conditions, a variety of sulfonylated N-heterocycles and O-heterocycles, such as tetrahydrofurans, tetrahydropyrans, oxepanes, tetrahydropyrroles, piperidines, δ-valerolactones, etc., were efficiently prepared from easily accessible unsaturated alcohols, carboxylic acids, and N-tosyl amines without the need for additional metal or exogenous oxidant. The robust electrochemical transformation features excellent redox economy, high diastereoselectivity, and broad substrate specificity, which provide a general and practical access to sulfone-containing heterocycles and would facilitate the related synthetic and biological studies based on this electrosynthesis.
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Affiliation(s)
- Xue-Qing Mou
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563003, P. R. China.,Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethno-medicine of Ministry of Education, School of Pharmacy, Zunyi Medical University, Zunyi 563003, P. R. China
| | - Liang-Chen Ren
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563003, P. R. China
| | - Min Wang
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563003, P. R. China
| | - Huan-Huan Zhang
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563003, P. R. China
| | - Ang Cai
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563003, P. R. China
| | - Kuan-Xin Wan
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563003, P. R. China
| | - Shi-Min Zhang
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563003, P. R. China.,Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethno-medicine of Ministry of Education, School of Pharmacy, Zunyi Medical University, Zunyi 563003, P. R. China
| | - Bao-Dong Cui
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563003, P. R. China.,Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethno-medicine of Ministry of Education, School of Pharmacy, Zunyi Medical University, Zunyi 563003, P. R. China
| | - Yun Zhang
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563003, P. R. China.,Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethno-medicine of Ministry of Education, School of Pharmacy, Zunyi Medical University, Zunyi 563003, P. R. China
| | - Yong-Zheng Chen
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563003, P. R. China.,Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethno-medicine of Ministry of Education, School of Pharmacy, Zunyi Medical University, Zunyi 563003, P. R. China
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Liu C, Puopolo T, Li H, Cai A, Seeram NP, Ma H. Identification of SARS-CoV-2 Main Protease Inhibitors from a Library of Minor Cannabinoids by Biochemical Inhibition Assay and Surface Plasmon Resonance Characterized Binding Affinity. Molecules 2022; 27:molecules27186127. [PMID: 36144858 PMCID: PMC9502466 DOI: 10.3390/molecules27186127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 09/15/2022] [Accepted: 09/16/2022] [Indexed: 01/08/2023]
Abstract
The replication of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is mediated by its main protease (Mpro), which is a plausible therapeutic target for coronavirus disease 2019 (COVID-19). Although numerous in silico studies reported the potential inhibitory effects of natural products including cannabis and cannabinoids on SARS-CoV-2 Mpro, their anti-Mpro activities are not well validated by biological experimental data. Herein, a library of minor cannabinoids belonging to several chemotypes including tetrahydrocannabinols, cannabidiols, cannabigerols, cannabichromenes, cannabinodiols, cannabicyclols, cannabinols, and cannabitriols was evaluated for their anti-Mpro activity using a biochemical assay. Additionally, the binding affinities and molecular interactions between the active cannabinoids and the Mpro protein were studied by a biophysical technique (surface plasmon resonance; SPR) and molecular docking, respectively. Cannabinoids tetrahydrocannabutol and cannabigerolic acid were the most active Mpro inhibitors (IC50 = 3.62 and 14.40 μM, respectively) and cannabigerolic acid had a binding affinity KD=2.16×10-4 M). A preliminary structure and activity relationship study revealed that the anti-Mpro effects of cannabinoids were influenced by the decarboxylation of cannabinoids and the length of cannabinoids' alkyl side chain. Findings from the biochemical, biophysical, and computational assays support the growing evidence of cannabinoids' inhibitory effects on SARS-CoV-2 Mpro.
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Affiliation(s)
- Chang Liu
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
- Cannabis Research Collaborative, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Tess Puopolo
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Huifang Li
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Ang Cai
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Navindra P. Seeram
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
- Cannabis Research Collaborative, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
- Correspondence: (N.P.S.); (H.M.); Tel.: +1-(401)-874-9367 (N.P.S.); +1-(401)-874-2711 (H.M.)
| | - Hang Ma
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
- Cannabis Research Collaborative, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
- Correspondence: (N.P.S.); (H.M.); Tel.: +1-(401)-874-9367 (N.P.S.); +1-(401)-874-2711 (H.M.)
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Stumpfe MC, Horch RE, Arkudas A, Cai A, Müller-Seubert W, Hauck T, Ludolph I. The Value of Negative-Pressure Wound Therapy and Flap Surgery in Hidradenitis Suppurativa – A Single Center Analysis of Different Treatment Options. Front Surg 2022; 9:867487. [PMID: 35836613 PMCID: PMC9273893 DOI: 10.3389/fsurg.2022.867487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 05/31/2022] [Indexed: 11/30/2022] Open
Abstract
Background Hidradenitis suppurativa is manifested by painful abscesses and scarring of sweat glands. Axillary, inguinal and genital regions are mostly affected. Multiple options exist in the treatment of hidradenitis suppurativa. The aim of this retrospective, mono-center cohort study was to analyze the outcome of different treatment methods after radical excision of hidradenitis suppurativa. Methods We retrospectively evaluated the treatment strategy and recurrence rate of hidradenitis suppurativa. We included all eligible patients of legal age between February 2003 and October 2021, with the diagnosis of Hidradenitis suppurativa and the necessity for surgical treatment. All patients with surgical treatment and direct wound closure by suture were excluded. Bacterial load and flora were analyzed for primary and secondary reconstruction in combination with negative-pressure wound therapy. Patient data were analyzed for recurrence rate and remission time according to different reconstructive techniques. Results In 44 affected anatomical sites (n = 23 patients) we treated 15 patients with negative-pressure wound therapy. Bacterial load and flora were lower in the last wound swab of patients with multi-surgical procedures (22 localizations) compared to the first wound swab independent of the use of negative-pressure wound therapy. Wound closure, independent of a direct and multi-stage procedure was achieved by local fasciocutaneous flaps (n = 12), secondary intention healing (n = 7), secondary intention healing with buried chip skin grafts (n = 10), or split-thickness skin grafts (n = 15). Radical excision combined with split-thickness skin grafts showed the lowest recurrence rate in the follow-up (16%; n = 4). Conclusion Radical excision of hidradenitis suppurativa as gold standard for surgical treatment combined with negative-pressure wound therapy as multi-stage procedures ultimately reduced bacterial load and flora in our study. The use of split-thickness skin grafts showed the lowest recurrence rate.
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Liu C, Cai A, Li H, Deng N, Cho BP, Seeram NP, Ma H. Characterization of molecular interactions between cannabidiol and human plasma proteins (serum albumin and γ-globulin) by surface plasmon resonance, microcalorimetry, and molecular docking. J Pharm Biomed Anal 2022; 214:114750. [DOI: 10.1016/j.jpba.2022.114750] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 03/30/2022] [Accepted: 04/01/2022] [Indexed: 01/22/2023]
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Mou XQ, Ren LC, Zhang M, Wang M, Jin YF, Guan QX, Cai A, Zhang SM, Ren H, Zhang Y, Chen YZ. Complementary Copper-Catalyzed and Electrochemical Aminosulfonylation of O-Homoallyl Benzimidates and N-Alkenyl Amidines with Sodium Sulfinates. Org Lett 2022; 24:1405-1411. [PMID: 35138858 DOI: 10.1021/acs.orglett.2c00287] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A complementary copper-catalyzed and electrochemical aminosulfonylation of O-homoallyl benzimidates and N-alkenyl amidines with sodium sulfinates was developed. The terminal alkene substrate produced sulfone-containing 1,3-oxazines and tetrahydropyrimidines in the presence of Cu(OAc)2, Ag2CO3, and DPP, and under similar reaction conditions, sulfonylated tetrahydro-1,3-oxazepines were prepared from 1-aryl-substituted O-homoallyl benzimidates in moderate to good yields. For certain electron-rich 1,1-diaryl-substituted alkene substrates, the corresponding tetrahydro-1,3-oxazepines could also be obtained in similar or even higher yields via a green electrochemical technique.
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Affiliation(s)
- Xue-Qing Mou
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, School of Pharmacy, Zunyi Medical University, Zunyi 563003, P. R. China
| | - Liang-Chen Ren
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, School of Pharmacy, Zunyi Medical University, Zunyi 563003, P. R. China
| | - Mei Zhang
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, School of Pharmacy, Zunyi Medical University, Zunyi 563003, P. R. China
| | - Min Wang
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, School of Pharmacy, Zunyi Medical University, Zunyi 563003, P. R. China
| | - Yu-Fan Jin
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, School of Pharmacy, Zunyi Medical University, Zunyi 563003, P. R. China
| | - Qing-Xin Guan
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, School of Pharmacy, Zunyi Medical University, Zunyi 563003, P. R. China
| | - Ang Cai
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, School of Pharmacy, Zunyi Medical University, Zunyi 563003, P. R. China
| | - Shi-Min Zhang
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, School of Pharmacy, Zunyi Medical University, Zunyi 563003, P. R. China
| | - Hai Ren
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
| | - Yun Zhang
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, School of Pharmacy, Zunyi Medical University, Zunyi 563003, P. R. China
| | - Yong-Zheng Chen
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, School of Pharmacy, Zunyi Medical University, Zunyi 563003, P. R. China
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Li H, Xu F, Liu C, Cai A, Dain JA, Li D, Seeram NP, Cho BP, Ma H. Inhibitory Effects and Surface Plasmon Resonance-Based Binding Affinities of Dietary Hydrolyzable Tannins and Their Gut Microbial Metabolites on SARS-CoV-2 Main Protease. J Agric Food Chem 2021; 69:12197-12208. [PMID: 34586788 PMCID: PMC8491554 DOI: 10.1021/acs.jafc.1c03521] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [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: 06/11/2021] [Revised: 08/27/2021] [Accepted: 08/31/2021] [Indexed: 05/16/2023]
Abstract
Severe acute respiratory syndrome coronavirus (SARS-CoV-2) main protease (Mpro) inhibitors are considered as potential treatments for coronavirus disease 2019, and dietary polyphenols show promise in SARS-CoV-2 Mpro inhibition based on in silico studies. In the present study, we utilize a combination of biochemical-, surface plasmon resonance-, and docking-based assays to evaluate the inhibition and binding affinities of a series of tannins and their gut microbial metabolites on SARS-CoV-2 Mpro. The tested compounds (2-50 μM) were hydrolyzable tannins, including ellagitannins (punicalagin and ellagic acid) and gallotannins (tannic acid, pentagalloyl glucose, ginnalin A, and gallic acid), and their gut microbial metabolites, urolithins and pyrogallol, respectively. They inhibited SARS-CoV-2 Mpro (by 6.6-100.0% at 50 μM) and bound directly to the Mpro protein (with dissociation constants from 1.1 × 10-6 to 5.3 × 10-5 M). This study sheds light on the inhibitory effects of tannins and their metabolites on SARS-CoV-2 Mpro.
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Affiliation(s)
- Huifang Li
- School of Biotechnology and Health Sciences, Wuyi University; International Healthcare Innovation Institute (Jiangmen), Jiangmen 529020, China
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Feng Xu
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550001, China
| | - Chang Liu
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Ang Cai
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
- Department of Chemistry, University of Rhode Island, Kingston, RI 02881, USA
| | - Joel A. Dain
- Department of Chemistry, University of Rhode Island, Kingston, RI 02881, USA
| | - Dongli Li
- Department of Chemistry, University of Rhode Island, Kingston, RI 02881, USA
| | - Navindra P. Seeram
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Bongsup P. Cho
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Hang Ma
- School of Biotechnology and Health Sciences, Wuyi University; International Healthcare Innovation Institute (Jiangmen), Jiangmen 529020, China
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
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Abstract
BACKGROUND Colorectal cancer (CRC) is one of the most frequently diagnosed cancers worldwide. Based on clinical data, CRC could be cured by surgery with favorable outcomes if diagnosed at an early stage. The present study aimed to determine whether circ-FMN2, circ-LMNB1, and circ-ZNF609 may serve as potential biomarkers for CRC. METHODS Expression levels of circ-FMN2, circ-LMNB1, and circ-ZNF609 were detected in serum samples from 88 CRC patients and 68 healthy volunteers by real-time quantitative PCR (RT-qPCR). The correlation between circRNA expressions and clinicopathological parameters was analyzed subsequently. The ROC curve analysis and survival curves were calculated and compared in order to explore the diagnostic and prognostic values of circ-RNAs in CRC. RESULTS The results verified that circ-FMN2, circ-LMNB1, and circ-ZNF609 were significantly elevated in serum samples of CRC patients compared with healthy controls (p < 0.01). Increased circ-FMN2, circ-LMNB1, and circ-ZNF609 expressions were markedly positively correlated with histological grade (p < 0.0001, p = 0.0014, p = 0.0303), lymph nodes metastasis (p < 0.0001, p < 0.0001, p = 0.0093), and TNM stage (p = 0.0055, p = 0.0110, p < 0.000). Meanwhile, the ROC curve analysis verified the diagnostic accuracy of circ-FMN2, circ-LMNB1, and circ-ZNF609 with AUC of 0.9153 (95% CI = 0.8707 ~ 0.9599), 0.9627 (95% CI = 0.9351 ~ 0.9903), and 0.8711 (95% CI = 0.8151 ~ 0.9270), respectively. Furthermore, the CRC patients with high circ-FMN2, circ-LMNB1, and circ-ZNF609 had significantly worse outcomes than those with low expression (p = 0.0267, p = 0.0145, p = 0.0194). CONCLUSIONS The present study elucidated that circ-FMN2, circ-LMNB1, and circ-ZNF609 may function as potential diagnostic and prognostic indicators for CRC detection.
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Tang C, Zhang W, Li H, Li L, Li Z, Cai A, Wang L, Shi D, Yan B. CNN-based qualitative detection of bone mineral density via diagnostic CT slices for osteoporosis screening. Osteoporos Int 2021; 32:971-979. [PMID: 33165630 DOI: 10.1007/s00198-020-05673-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Accepted: 10/06/2020] [Indexed: 12/15/2022]
Abstract
UNLABELLED The features extracted from diagnostic computed tomography (CT) slices were used to qualitatively detect bone mineral density (BMD) through neural network models, and the evaluation results indicated that it may be a promising approach to perform osteoporosis screening in clinical practice. INTRODUCTION The purpose of this study is to design a novelty diagnostic method for osteoporosis screening by using the convolutional neural network (CNN), which can be incorporated into the procedure of routine CT diagnostic in medical examination thereby improving the osteoporosis diagnosis and reducing the patient burden. METHODS The proposed CNN-based method mainly comprises two functional modules to perform qualitative detection of BMD by analyzing the diagnostic 2D CT slice. The first functional module aims to locate and segment the ROI of diagnostic 2D CT slice, called Mark-Segmentation-Network (MS-Net). The second functional module is used to determine the category of BMD by the features of ROI, called BMD-Classification-Network (BMDC-Net). The diagnostic 2D CT slice of pedicle level in lumbar vertebrae (L1) was selected from 3D CT image in our experiments firstly. Then, the trained MS-Net can get the mark image of input original 2D CT slice, thereby obtain the segmentation image. Finally, the trained BMDC-Net can obtain the probability value of normal bone mass, low bone mass, and osteoporosis by inputting the segmentation image. On the basis of network results, the radiologists can provide preliminary qualitative diagnosis results of BMD. RESULTS Training of the network was performed on diagnostic 2D CT slices of 150 patients. The network was tested on 63 patients. Each patient corresponds to a 2D CT slice. The proposed MS-Net has an excellent segmentation precision on the shape preservation of different lumbar vertebra. The dice index (DI), pixel accuracy (PA), and intersection over union (IOU) of segmentation results are greater than 0.8. The proposed BMDC-Net achieved an accuracy of 76.65% and an area under the receiver operating characteristic curve of 0.9167. CONCLUSIONS This study proposed a novel method for qualitative detection of BMD via diagnostic CT slices and it has great potential in clinical applications for osteoporosis screening. The method can potentially reduce the manual burden to radiologists and diagnostic cost to patients.
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Affiliation(s)
- C Tang
- PLA Strategy Support Force Information Engineering University, No.62 Science Avenue, Zhengzhou, Henan Province, China
| | - W Zhang
- PLA Strategy Support Force Information Engineering University, No.62 Science Avenue, Zhengzhou, Henan Province, China
| | - H Li
- Department of Radiology in Henan Provincial People's Hospital, Zhengzhou, Henan Province, China
| | - L Li
- PLA Strategy Support Force Information Engineering University, No.62 Science Avenue, Zhengzhou, Henan Province, China
| | - Z Li
- PLA Strategy Support Force Information Engineering University, No.62 Science Avenue, Zhengzhou, Henan Province, China
| | - A Cai
- PLA Strategy Support Force Information Engineering University, No.62 Science Avenue, Zhengzhou, Henan Province, China
| | - L Wang
- PLA Strategy Support Force Information Engineering University, No.62 Science Avenue, Zhengzhou, Henan Province, China
| | - D Shi
- Department of Radiology in Henan Provincial People's Hospital, Zhengzhou, Henan Province, China
| | - B Yan
- PLA Strategy Support Force Information Engineering University, No.62 Science Avenue, Zhengzhou, Henan Province, China.
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Cai A, Lakshmanan S, Dahal S, Onuegbu A, Rezvanizadeh V, Kinninger A, Roy S, Budoff M. Radiation Dose Reduction Using The GE Revolution 256 Detector CT Machine. J Cardiovasc Comput Tomogr 2020. [DOI: 10.1016/j.jcct.2020.06.067] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Lakshmanan S, Onuegbu A, Dahal S, Cai A, Birudaraju D, Hamal S, Kinninger A, Roy S, Budoff M, Merz N, Handberg E, Pepine C. Differences In Burden Of Coronary Atherosclerosis By Coronary Cta In Symptomatic Women With Angina And No Obstructive Disease (inoca) Compared To Asymptomatic Women. J Cardiovasc Comput Tomogr 2020. [DOI: 10.1016/j.jcct.2020.06.078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Lakshmanan S, Holda M, Shekar C, Dahal S, Onuegbu A, Kinninger A, Cai A, Golub I, Cherukuri L, Birudaraju D, Hamal S, Hadeed S, Roy S, Nelson J, Bhatt D, Budoff M. Association Of Thoracic And Pericardial Fat Volumes With Burden Of Baseline Coronary Plaque Components: Evaporate Trial. J Cardiovasc Comput Tomogr 2020. [DOI: 10.1016/j.jcct.2020.06.158] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Lakshmanan S, Kinninger A, Dahal S, Golub I, Onuegbu A, Birudaraju D, Cherukuri L, Cai A, Roy S, Budoff M. 20-year Trends Of Coronary Calcium Scores And Cardiovascular Risk Factors In Beach Cities/ Certified Blue Zones Of California: Impact Of Blue Zones Project? J Cardiovasc Comput Tomogr 2020. [DOI: 10.1016/j.jcct.2020.06.101] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Birudaraju D, Lakhshmanan S, Mateusz H, Kinninger A, Cherukuri L, Shekar C, Ghanem A, Golub I, Rezvanizadeh V, Dahal S, Onuegbu A, Cai A, Flores F, Hamal S, Roy S, Nelson J, Budoff M. Association Of Serum Fibrinogen Levels With Thoracic Fat Volumes By Cardiac CT: EVAPORATE (Effect Of Vascepa On Improving Coronary Atherosclerosis In People With High Triglycerides (TGL) Taking Statin Therapy) Trial. J Cardiovasc Comput Tomogr 2020. [DOI: 10.1016/j.jcct.2020.06.061] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Lakshmanan S, Holda M, Shekar C, Dahal S, Kinninger A, Golub I, Onuegbu A, Cai A, Birudaraju D, Cherukuri L, Hamal S, Roy S, Nelson J, Budoff M. Association Of Inflammatory Markers With Fatty Liver By Non Contrast Cardiac Ct:Evaporate Trial. J Cardiovasc Comput Tomogr 2020. [DOI: 10.1016/j.jcct.2020.06.131] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Lakshmanan S, Dahal S, Onuegbu A, Cai A, Kinninger A, Golub I, Birudaraju D, Hadeed S, Cherukuri L, Roy S, Budoff M. Gender Differences In Coronary Plaque Volumes Across Age Groups In Type 2 Diabetes Mellitus. J Cardiovasc Comput Tomogr 2020. [DOI: 10.1016/j.jcct.2020.06.151] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Rezvanizadeh V, Nezarat N, Dahal S, Lakshmanan S, Cai A, Onuegbu A, Ahmad K, Ghanem A, Golub I, Birudaraju D, Kinninger A, Andreini D, Pontone G, Conte E, Nakanishi R, O'Rourke R, Hamilton-Craig C, Roy S, Budoff M. Lower Utilization Of Contrast Media And Beta-blocker In 256-detector Ge Revolution Ct Scanner: The Converge Registry. J Cardiovasc Comput Tomogr 2020. [DOI: 10.1016/j.jcct.2020.06.057] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Cai A, Xiao L, Zhou YP, Zhang ZG, Yang QW. Effect of <i>Evodia rutaecarpa</i> (Juss) Benth extract on Alzheimer disease in mice. TROP J PHARM RES 2020. [DOI: 10.4314/tjpr.v19i4.21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Purpose: To investigate the protective effect of Evodia rutaecarpa (Juss.) Benth. extract (ERBE) against Alzheimer's disease in 3xTg-AD mice.
Methods: The cognitive function of 3xTg-AD mice was assessed using Morris water maze test. The levels of amyloid beta deposits and NeuN in the mouse hippocampus were evaluated by immunohistochemistry. Brain neurotrophic derived factor (BDNF) and tyrosine kinase B (TrkB) expressions were determined by western blot analysis.
Results: ERBE treatment significantly ameliorated learning and memory deficits in AD mice, as shown by increased time spent in the target zone during probe tests. The escape latency in the animals treated with 400 mg/kg ERBE (20.5 ± 1.3 s) was significantly higher than untreated 3xTg-AD mice (12.4 ± 1.3 s, p < 0.01). In addition, ERBE significantly decreased Aβ deposits, increased NeuN-positive cells, and upregulated the expressions of BDNF (1.4 ± 0.2, p < 0.05) and TrkB (1.1 ± 0.2, p < 0.05) in 3xTg AD mice.
Conclusion: The results suggest that ERBE administration may be a useful strategy for treating memory impairment induced by several neurodegenerative diseases.
Keywords: Evodia rutaecarpa, Alzheimer, Memory impairment, NeuN-positive cells
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Cai A, Tang X, Liu W, Ma H, Dain JA. Formation of Products similar to Advanced Glycation End products (SAGEs) and Binding Affinities between Keto Acids with Human Serum Albumin. FASEB J 2020. [DOI: 10.1096/fasebj.2020.34.s1.05302] [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: 11/11/2022]
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Cai A, Yu Z, Hu H, Kirchner S, Si Q. Dynamical Scaling of Charge and Spin Responses at a Kondo Destruction Quantum Critical Point. Phys Rev Lett 2020; 124:027205. [PMID: 32004044 DOI: 10.1103/physrevlett.124.027205] [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] [Received: 03/24/2019] [Indexed: 06/10/2023]
Abstract
Quantum critical points often arise in metals perched at the border of an antiferromagnetic order. The recent observation of singular and dynamically scaling charge conductivity in an antiferromagnetic quantum critical heavy fermion metal implicates beyond-Landau quantum criticality. Here we study the charge and spin dynamics of a Kondo destruction quantum critical point (QCP), as realized in an SU(2)-symmetric Bose-Fermi Kondo model. We find that the critical exponents and scaling functions of the spin and single-particle responses of the QCP in the SU(2) case are essentially the same as those of the large-N limit, showing that 1/N corrections are subleading. Building on this insight, we demonstrate that the charge responses at the Kondo destruction QCP are singular and obey ω/T scaling. This property persists at the Kondo destruction QCP of the SU(2)-symmetric Kondo lattice model.
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Affiliation(s)
- Ang Cai
- Department of Physics and Astronomy, Rice Center for Quantum Materials, Rice University, Houston, Texas 77005, USA
| | - Zuodong Yu
- Zhejiang Institute of Modern Physics, Zhejiang University, Hangzhou, Zhejiang 310058, China
- Zhejiang Province Key Laboratory of Quantum Technology and Devices, Zhejiang University, Hangzhou 310027, China
| | - Haoyu Hu
- Department of Physics and Astronomy, Rice Center for Quantum Materials, Rice University, Houston, Texas 77005, USA
| | - Stefan Kirchner
- Zhejiang Institute of Modern Physics, Zhejiang University, Hangzhou, Zhejiang 310058, China
- Zhejiang Province Key Laboratory of Quantum Technology and Devices, Zhejiang University, Hangzhou 310027, China
| | - Qimiao Si
- Department of Physics and Astronomy, Rice Center for Quantum Materials, Rice University, Houston, Texas 77005, USA
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Martelli V, Cai A, Nica EM, Taupin M, Prokofiev A, Liu CC, Lai HH, Yu R, Ingersent K, Küchler R, Strydom AM, Geiger D, Haenel J, Larrea J, Si Q, Paschen S. Sequential localization of a complex electron fluid. Proc Natl Acad Sci U S A 2019; 116:17701-17706. [PMID: 31431528 PMCID: PMC6731632 DOI: 10.1073/pnas.1908101116] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Complex and correlated quantum systems with promise for new functionality often involve entwined electronic degrees of freedom. In such materials, highly unusual properties emerge and could be the result of electron localization. Here, a cubic heavy fermion metal governed by spins and orbitals is chosen as a model system for this physics. Its properties are found to originate from surprisingly simple low-energy behavior, with 2 distinct localization transitions driven by a single degree of freedom at a time. This result is unexpected, but we are able to understand it by advancing the notion of sequential destruction of an SU(4) spin-orbital-coupled Kondo entanglement. Our results implicate electron localization as a unified framework for strongly correlated materials and suggest ways to exploit multiple degrees of freedom for quantum engineering.
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Affiliation(s)
- Valentina Martelli
- Institute of Solid State Physics, Vienna University of Technology, 1040 Vienna, Austria
| | - Ang Cai
- Department of Physics and Astronomy, Rice University, Houston, TX 77005
- Rice Center for Quantum Materials, Rice University, Houston, TX 77005
| | - Emilian M Nica
- Department of Physics and Astronomy, Rice University, Houston, TX 77005
- Rice Center for Quantum Materials, Rice University, Houston, TX 77005
| | - Mathieu Taupin
- Institute of Solid State Physics, Vienna University of Technology, 1040 Vienna, Austria
| | - Andrey Prokofiev
- Institute of Solid State Physics, Vienna University of Technology, 1040 Vienna, Austria
| | - Chia-Chuan Liu
- Department of Physics and Astronomy, Rice University, Houston, TX 77005
- Rice Center for Quantum Materials, Rice University, Houston, TX 77005
| | - Hsin-Hua Lai
- Department of Physics and Astronomy, Rice University, Houston, TX 77005
- Rice Center for Quantum Materials, Rice University, Houston, TX 77005
| | - Rong Yu
- Department of Physics and Astronomy, Rice University, Houston, TX 77005
- Rice Center for Quantum Materials, Rice University, Houston, TX 77005
- Department of Physics, Renmin University of China, Beijing 100872, China
| | - Kevin Ingersent
- Department of Physics, University of Florida, Gainesville, FL 32611-8440
| | - Robert Küchler
- Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, 01187 Dresden, Germany
| | - André M Strydom
- Highly Correlated Matter Research Group, Physics Department, University of Johannesburg, Auckland Park 2006, South Africa
| | - Diana Geiger
- Institute of Solid State Physics, Vienna University of Technology, 1040 Vienna, Austria
| | - Jonathan Haenel
- Institute of Solid State Physics, Vienna University of Technology, 1040 Vienna, Austria
| | - Julio Larrea
- Institute of Solid State Physics, Vienna University of Technology, 1040 Vienna, Austria
| | - Qimiao Si
- Department of Physics and Astronomy, Rice University, Houston, TX 77005;
- Rice Center for Quantum Materials, Rice University, Houston, TX 77005
| | - Silke Paschen
- Institute of Solid State Physics, Vienna University of Technology, 1040 Vienna, Austria;
- Department of Physics and Astronomy, Rice University, Houston, TX 77005
- Rice Center for Quantum Materials, Rice University, Houston, TX 77005
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Cai A, Wilson KA, Patnaik S, Wetmore SD, Cho BP. DNA base sequence effects on bulky lesion-induced conformational heterogeneity during DNA replication. Nucleic Acids Res 2019; 46:6356-6370. [PMID: 29800374 PMCID: PMC6158707 DOI: 10.1093/nar/gky409] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Accepted: 05/03/2018] [Indexed: 12/11/2022] Open
Abstract
4-Aminobiphenyl (ABP) and its structure analog 2-aminofluorene (AF) are well-known carcinogens. In the present work, an unusual sequence effect in the 5′-CTTCTG1G2TCCTCATTC-3′ DNA duplex is reported for ABP- and AF-modified G. Specifically, the ABP modification at G1 resulted in a mixture of 67% major groove B-type (B) and 33% stacked (S) conformers, while at the ABP modification at G2 exclusively resulted in the B-conformer. The AF modification at G1 and G2 lead to 25%:75% and 83%:17% B:S population ratios, respectively. These differences in preferred conformation are due to an interplay between stabilizing (hydrogen bonding and stacking that is enhanced by lesion planarity) and destabilizing (solvent exposure) forces at the lesion site. Furthermore, while the B-conformer is a thermodynamic stabilizer and the S-conformer is a destabilizer in duplex settings, the situation is reversed at the single strands/double strands (ss/ds) junction. Specifically, the twisted biphenyl is a better stacker at the ss/ds junction than the coplanar AF. Therefore, the ABP modification leads to a stronger strand binding affinity of the ss/ds junction than the AF modification. Overall, the current work provides conformational insights into the role of sequence and lesion effects in modulating DNA replication.
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Affiliation(s)
- Ang Cai
- Department of Biomedical and Pharmaceutical Sciences, University of Rhode Island, Kingston, RI 02881, USA
| | - Katie A Wilson
- Department of Chemistry and Biochemistry, University of Lethbridge, 4401 University Drive West, Lethbridge, Alberta T1K 3M4, Canada
| | - Satyakam Patnaik
- Department of Biomedical and Pharmaceutical Sciences, University of Rhode Island, Kingston, RI 02881, USA
| | - Stacey D Wetmore
- Department of Chemistry and Biochemistry, University of Lethbridge, 4401 University Drive West, Lethbridge, Alberta T1K 3M4, Canada
| | - Bongsup P Cho
- Department of Biomedical and Pharmaceutical Sciences, University of Rhode Island, Kingston, RI 02881, USA
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Cai A, Bian K, Chen F, Tang Q, Carley R, Li D, Cho BP. Probing the Effect of Bulky Lesion-Induced Replication Fork Conformational Heterogeneity Using 4-Aminobiphenyl-Modified DNA. Molecules 2019; 24:molecules24081566. [PMID: 31009995 PMCID: PMC6514942 DOI: 10.3390/molecules24081566] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 04/14/2019] [Accepted: 04/17/2019] [Indexed: 11/16/2022] Open
Abstract
Bulky organic carcinogens are activated in vivo and subsequently react with nucleobases of cellular DNA to produce adducts. Some of these DNA adducts exist in multiple conformations that are slowly interconverted to one another. Different conformations have been implicated in different mutagenic and repair outcomes. However, studies on the conformation-specific inhibition of replication, which is more relevant to cell survival, are scarce, presumably due to the structural dynamics of DNA lesions at the replication fork. It is difficult to capture the exact nature of replication inhibition by existing end-point assays, which usually detect either the ensemble of consequences of all the conformers or the culmination of all cellular behaviors, such as mutagenicity or survival rate. We previously reported very unusual sequence-dependent conformational heterogeneities involving FABP-modified DNA under different sequence contexts (TG1*G2T [67%B:33%S] and TG1G2*T [100%B], G*, N-(2′-deoxyguanosin-8-yl)-4′-fluoro-4-aminobiphenyl) (Cai et al. Nucleic Acids Research, 46, 6356–6370 (2018)). In the present study, we attempted to correlate the in vitro inhibition of polymerase activity to different conformations from a single FABP-modified DNA lesion. We utilized a combination of surface plasmon resonance (SPR) and HPLC-based steady-state kinetics to reveal the differences in terms of binding affinity and inhibition with polymerase between these two conformers (67%B:33%S and 100%B).
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Affiliation(s)
- Ang Cai
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, 7 Greenhouse Road, Kingston, RI 02881, USA.
| | - Ke Bian
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, 7 Greenhouse Road, Kingston, RI 02881, USA.
| | - Fangyi Chen
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, 7 Greenhouse Road, Kingston, RI 02881, USA.
| | - Qi Tang
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, 7 Greenhouse Road, Kingston, RI 02881, USA.
| | - Rachel Carley
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, 7 Greenhouse Road, Kingston, RI 02881, USA.
| | - Deyu Li
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, 7 Greenhouse Road, Kingston, RI 02881, USA.
| | - Bongsup P Cho
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, 7 Greenhouse Road, Kingston, RI 02881, USA.
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Tang X, Cai A, Li D, Dain JA, Seeram NP, Ma H. Jasmine ( Jasminum officinale L . var. grandiflorum) Flower Extracts Inhibit the Formation of Methylglyoxal Induced Advanced Glycation Endproducts. FASEB J 2019. [DOI: 10.1096/fasebj.2019.33.1_supplement.471.21] [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: 11/11/2022]
Affiliation(s)
- Xiaodan Tang
- School of Biotechnology and Health Sciences; International Healthcare Innovation Institute (Jiangmen); Wuyi University; Jiangmen People's Republic of China
- Bioactive Botanical Research Laboratory; Department of Biomedical and Pharmaceutical Sciences; College of Pharmacy, The University of Rhode Island; Kingston RI
| | - Ang Cai
- Department of Chemistry; The University of Rhode Island; Kingston RI
| | - Dongli Li
- School of Biotechnology and Health Sciences; International Healthcare Innovation Institute (Jiangmen); Wuyi University; Jiangmen People's Republic of China
| | - Joel A. Dain
- Department of Chemistry; The University of Rhode Island; Kingston RI
| | - Navindra P. Seeram
- Bioactive Botanical Research Laboratory; Department of Biomedical and Pharmaceutical Sciences; College of Pharmacy, The University of Rhode Island; Kingston RI
| | - Hang Ma
- School of Biotechnology and Health Sciences; International Healthcare Innovation Institute (Jiangmen); Wuyi University; Jiangmen People's Republic of China
- Bioactive Botanical Research Laboratory; Department of Biomedical and Pharmaceutical Sciences; College of Pharmacy, The University of Rhode Island; Kingston RI
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Cai A, Liu W, Tang X, Ma H, Seeram NP, Dain JA. Keto Acids React with Human Serum Albumin to Form Products Similar to Advanced Glycation Endproducts (SAGEs). FASEB J 2019. [DOI: 10.1096/fasebj.2019.33.1_supplement.632.2] [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: 11/11/2022]
Affiliation(s)
- Ang Cai
- Department of ChemistryCollege of Pharmacy, The University of Rhode IslandKingstonRI
| | - Weixi Liu
- Department of ChemistryCollege of Pharmacy, The University of Rhode IslandKingstonRI
| | - Xiaodan Tang
- Bioactive Botanical Research LaboratoryDepartment of Biomedical and Pharmaceutical SciencesCollege of Pharmacy, The University of Rhode IslandKingstonRI
| | - Hang Ma
- Bioactive Botanical Research LaboratoryDepartment of Biomedical and Pharmaceutical SciencesCollege of Pharmacy, The University of Rhode IslandKingstonRI
| | - Navindra P. Seeram
- Bioactive Botanical Research LaboratoryDepartment of Biomedical and Pharmaceutical SciencesCollege of Pharmacy, The University of Rhode IslandKingstonRI
| | - Joel A. Dain
- Department of ChemistryCollege of Pharmacy, The University of Rhode IslandKingstonRI
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Cai A, Liu W, Ma H, Dombi GW, Dain JA, Seeram NP. Pomegranate phenolics inhibit type I collagen cross‐linking induced by glycative stress. FASEB J 2018. [DOI: 10.1096/fasebj.2018.32.1_supplement.656.35] [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: 11/11/2022]
Affiliation(s)
- Ang Cai
- Department of Biomedical and Pharmaceutical SciencesCollege of PharmacyUniversity of Rhode IslandKingstonRI
- Department of ChemistryUniversity of Rhode IslandKingstonRI
| | - Weixi Liu
- Department of ChemistryUniversity of Rhode IslandKingstonRI
| | - Hang Ma
- Bioactive Botanical Research LaboratoryDepartment of Biomedical and Pharmaceutical SciencesCollege of PharmacyUniversity of Rhode IslandKingstonRI
| | | | - Joel A. Dain
- Department of ChemistryUniversity of Rhode IslandKingstonRI
| | - Navindra P. Seeram
- Bioactive Botanical Research LaboratoryDepartment of Biomedical and Pharmaceutical SciencesCollege of PharmacyUniversity of Rhode IslandKingstonRI
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Tang Q, Cai A, Bian K, Chen F, Delaney JC, Adusumalli S, Bach AC, Akhlaghi F, Cho BP, Li D. Characterization of Byproducts from Chemical Syntheses of Oligonucleotides Containing 1-Methyladenine and 3-Methylcytosine. ACS Omega 2017; 2:8205-8212. [PMID: 29214236 PMCID: PMC5709782 DOI: 10.1021/acsomega.7b01482] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Accepted: 11/01/2017] [Indexed: 06/07/2023]
Abstract
Oligonucleotides serve as important tools for biological, chemical, and medical research. The preparation of oligonucleotides through automated solid-phase synthesis is well-established. However, identification of byproducts generated from DNA synthesis, especially from oligonucleotides containing site-specific modifications, is sometimes challenging. Typical high-performance liquid chromatography (HPLC), mass spectrometry (MS), and gel electrophoresis methods alone are not sufficient for characterizing unexpected byproducts, especially for those having identical or very similar molecular weight (MW) to the products. We used a rigorous quality control procedure to characterize byproducts generated during oligonucleotide syntheses: (1) purify oligonucleotides by different HPLC systems; (2) determine exact MW by high-resolution MS; (3) locate modification position by MS/MS or exonuclease digestion with matrix-assisted laser desorption ionization-time of flight analysis; and (4) conduct, where applicable, enzymatic assays. We applied these steps to characterize byproducts in the syntheses of oligonucleotides containing biologically important methyl DNA adducts 1-methyladenine (m1A) and 3-methylcytosine (m3C). In m1A synthesis, we differentiated a regioisomeric byproduct 6-methyladenine, which possesses a MW identical to uncharged m1A. As for m3C, we identified a deamination byproduct 3-methyluracil, which is only 1 Da greater than uncharged m3C in the ∼4900 Da context. The detection of these byproducts would be very challenging if the abovementioned procedure was not adopted.
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Affiliation(s)
- Qi Tang
- Department
of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, 7 Greenhouse Road, Kingston, Rhode Island 02881, United States
| | - Ang Cai
- Department
of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, 7 Greenhouse Road, Kingston, Rhode Island 02881, United States
| | - Ke Bian
- Department
of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, 7 Greenhouse Road, Kingston, Rhode Island 02881, United States
| | - Fangyi Chen
- Department
of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, 7 Greenhouse Road, Kingston, Rhode Island 02881, United States
| | - James C. Delaney
- Visterra
Inc., One Kendall Square, Cambridge, Massachusetts 02139, United States
| | - Sravani Adusumalli
- Department
of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, 7 Greenhouse Road, Kingston, Rhode Island 02881, United States
| | - Alvin C. Bach
- Department
of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, 7 Greenhouse Road, Kingston, Rhode Island 02881, United States
| | - Fatemeh Akhlaghi
- Department
of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, 7 Greenhouse Road, Kingston, Rhode Island 02881, United States
| | - Bongsup P. Cho
- Department
of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, 7 Greenhouse Road, Kingston, Rhode Island 02881, United States
| | - Deyu Li
- Department
of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, 7 Greenhouse Road, Kingston, Rhode Island 02881, United States
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Liu W, Wei Z, Ma H, Cai A, Liu Y, Sun J, DaSilva NA, Johnson SL, Kirschenbaum LJ, Cho BP, Dain JA, Rowley DC, Shaikh ZA, Seeram NP. Anti-glycation and anti-oxidative effects of a phenolic-enriched maple syrup extract and its protective effects on normal human colon cells. Food Funct 2017; 8:757-766. [PMID: 28112327 DOI: 10.1039/c6fo01360k] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Oxidative stress and free radical generation accelerate the formation of advanced glycation endproducts (AGEs) which are linked to several chronic diseases. Published data suggest that phenolic-rich plant foods, show promise as natural anti-AGEs agents due to their anti-oxidation capacities. A phenolic-enriched maple syrup extract (MSX) has previously been reported to show anti-inflammatory and neuroprotective effects but its anti-AGE effects remain unknown. Therefore, herein, we investigated the anti-glycation and anti-oxidation effects of MSX using biochemical and biophysical methods. MSX (500 μg mL-1) reduced the formation of AGEs by 40% in the bovine serum albumin (BSA)-fructose assay and by 30% in the BSA-methylglyoxal (MGO) assay. MSX also inhibited the formation of crosslinks typically seen in the late stage of glycation. Circular dichroism and differential scanning calorimeter analyses demonstrated that MSX maintained the structure of BSA during glycation. In the anti-oxidant assays, MSX (61.7 μg mL-1) scavenged 50% of free radicals (DPPH assay) and reduced free radical generation by 20% during the glycation process (electron paramagnetic resonance time scan). In addition, the intracellular levels of hydrogen peroxide induced reactive oxygen species were reduced by 27-58% with MSX (50-200 μg mL-1) in normal/non-tumorigenic human colon CCD-18Co cells. Moreover, in AGEs and MGO challenged CCD-18Co cells, higher cellular viabilities and rapid extracellular signal-regulated kinase (ERK) phosphorylation were observed in MSX treated cells, indicating its protective effects against AGEs-induced cytotoxicity. Overall, this study supports the biological effects of MSX, and warrants further investigation of its potential as a dietary agent against diseases mediated by oxidative stress and inflammation.
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Affiliation(s)
- Weixi Liu
- Bioactive Botanical Research Laboratory, Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA. and Department of Chemistry, University of Rhode Island, Kingston, RI 02881, USA
| | - Zhengxi Wei
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Hang Ma
- Bioactive Botanical Research Laboratory, Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA.
| | - Ang Cai
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Yongqiang Liu
- Bioactive Botanical Research Laboratory, Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA.
| | - Jiadong Sun
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Nicholas A DaSilva
- Bioactive Botanical Research Laboratory, Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA.
| | - Shelby L Johnson
- Bioactive Botanical Research Laboratory, Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA.
| | | | - Bongsup P Cho
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Joel A Dain
- Department of Chemistry, University of Rhode Island, Kingston, RI 02881, USA
| | - David C Rowley
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Zahir A Shaikh
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Navindra P Seeram
- Bioactive Botanical Research Laboratory, Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA.
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Witt R, Weigand A, Boos AM, Cai A, Dippold D, Boccaccini AR, Schubert DW, Hardt M, Lange C, Arkudas A, Horch RE, Beier JP. Mesenchymal stem cells and myoblast differentiation under HGF and IGF-1 stimulation for 3D skeletal muscle tissue engineering. BMC Cell Biol 2017; 18:15. [PMID: 28245809 PMCID: PMC5331627 DOI: 10.1186/s12860-017-0131-2] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Accepted: 02/22/2017] [Indexed: 02/07/2023] Open
Abstract
Background Volumetric muscle loss caused by trauma or after tumour surgery exceeds the natural regeneration capacity of skeletal muscle. Hence, the future goal of tissue engineering (TE) is the replacement and repair of lost muscle tissue by newly generating skeletal muscle combining different cell sources, such as myoblasts and mesenchymal stem cells (MSCs), within a three-dimensional matrix. Latest research showed that seeding skeletal muscle cells on aligned constructs enhance the formation of myotubes as well as cell alignment and may provide a further step towards the clinical application of engineered skeletal muscle. In this study the myogenic differentiation potential of MSCs upon co-cultivation with myoblasts and under stimulation with hepatocyte growth factor (HGF) and insulin-like growth factor-1 (IGF-1) was evaluated. We further analysed the behaviour of MSC-myoblast co-cultures in different 3D matrices. Results Primary rat myoblasts and rat MSCs were mono- and co-cultivated for 2, 7 or 14 days. The effect of different concentrations of HGF and IGF-1 alone, as well as in combination, on myogenic differentiation was analysed using microscopy, multicolour flow cytometry and real-time PCR. Furthermore, the influence of different three-dimensional culture models, such as fibrin, fibrin-collagen-I gels and parallel aligned electrospun poly-ε-caprolacton collagen-I nanofibers, on myogenic differentiation was analysed. MSCs could be successfully differentiated into the myogenic lineage both in mono- and in co-cultures independent of HGF and IGF-1 stimulation by expressing desmin, myocyte enhancer factor 2, myosin heavy chain 2 and alpha-sarcomeric actinin. An increased expression of different myogenic key markers could be observed under HGF and IGF-1 stimulation. Even though, stimulation with HGF/IGF-1 does not seem essential for sufficient myogenic differentiation. Three-dimensional cultivation in fibrin-collagen-I gels induced higher levels of myogenic differentiation compared with two-dimensional experiments. Cultivation on poly-ε-caprolacton-collagen-I nanofibers induced parallel alignment of cells and positive expression of desmin. Conclusions In this study, we were able to myogenically differentiate MSC upon mono- and co-cultivation with myoblasts. The addition of HGF/IGF-1 might not be essential for achieving successful myogenic differentiation. Furthermore, with the development of a biocompatible nanofiber scaffold we established the basis for further experiments aiming at the generation of functional muscle tissue. Electronic supplementary material The online version of this article (doi:10.1186/s12860-017-0131-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- R Witt
- Department of Plastic and Hand Surgery and Laboratory for Tissue Engineering and Regenerative Medicine, University Hospital of Erlangen, Friedrich-Alexander University of Erlangen-Nürnberg (FAU), Krankenhausstraße 12, 91054, Erlangen, Germany
| | - A Weigand
- Department of Plastic and Hand Surgery and Laboratory for Tissue Engineering and Regenerative Medicine, University Hospital of Erlangen, Friedrich-Alexander University of Erlangen-Nürnberg (FAU), Krankenhausstraße 12, 91054, Erlangen, Germany
| | - A M Boos
- Department of Plastic and Hand Surgery and Laboratory for Tissue Engineering and Regenerative Medicine, University Hospital of Erlangen, Friedrich-Alexander University of Erlangen-Nürnberg (FAU), Krankenhausstraße 12, 91054, Erlangen, Germany
| | - A Cai
- Department of Plastic and Hand Surgery and Laboratory for Tissue Engineering and Regenerative Medicine, University Hospital of Erlangen, Friedrich-Alexander University of Erlangen-Nürnberg (FAU), Krankenhausstraße 12, 91054, Erlangen, Germany
| | - D Dippold
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nürnberg (FAU), Cauerstraße 6, 91058, Erlangen, Germany.,Institute of Polymer Materials, Department of Materials Science and Engineering, University of Erlangen- Nürnberg (FAU), Martensstrasse 7, 91058, Erlangen, Germany
| | - A R Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nürnberg (FAU), Cauerstraße 6, 91058, Erlangen, Germany
| | - D W Schubert
- Institute of Polymer Materials, Department of Materials Science and Engineering, University of Erlangen- Nürnberg (FAU), Martensstrasse 7, 91058, Erlangen, Germany
| | - M Hardt
- Department of Plastic and Hand Surgery and Laboratory for Tissue Engineering and Regenerative Medicine, University Hospital of Erlangen, Friedrich-Alexander University of Erlangen-Nürnberg (FAU), Krankenhausstraße 12, 91054, Erlangen, Germany
| | - C Lange
- Interdisciplinary Clinic for Stem Cell Transplantation, University Cancer Center Hamburg (UCCH), 20246, Hamburg, Germany
| | - A Arkudas
- Department of Plastic and Hand Surgery and Laboratory for Tissue Engineering and Regenerative Medicine, University Hospital of Erlangen, Friedrich-Alexander University of Erlangen-Nürnberg (FAU), Krankenhausstraße 12, 91054, Erlangen, Germany
| | - R E Horch
- Department of Plastic and Hand Surgery and Laboratory for Tissue Engineering and Regenerative Medicine, University Hospital of Erlangen, Friedrich-Alexander University of Erlangen-Nürnberg (FAU), Krankenhausstraße 12, 91054, Erlangen, Germany
| | - J P Beier
- Department of Plastic and Hand Surgery and Laboratory for Tissue Engineering and Regenerative Medicine, University Hospital of Erlangen, Friedrich-Alexander University of Erlangen-Nürnberg (FAU), Krankenhausstraße 12, 91054, Erlangen, Germany.
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Giulietti JM, Tate PM, Cai A, Cho B, Mulcahy SP. DNA-binding studies of the natural β-carboline eudistomin U. Bioorg Med Chem Lett 2016; 26:4705-4708. [PMID: 27567367 DOI: 10.1016/j.bmcl.2016.08.047] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [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: 07/04/2016] [Revised: 08/16/2016] [Accepted: 08/17/2016] [Indexed: 12/01/2022]
Abstract
Eudistomin U is a member of the β-carboline class of heterocyclic amine-containing molecules that are capable of binding to DNA. The structure of eudistomin U is unique since it contains an indole ring at the 1-position of the pyridine ring. While simple β-carbolines are reported to intercalate DNA, an examination of the mode of binding of eudistomin U has been lacking. We report preliminary spectroscopic (UV-Vis, thermal denaturation, CD) and calorimetric (DSC) data on the binding of eudistomin U to DNA, which suggest that eudistomin U binds weakly according to a mechanism that is more complicated than other members of its class.
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Affiliation(s)
- Jennifer M Giulietti
- Providence College, Department of Chemistry and Biochemistry, 1 Cunningham Square, Providence, RI 02918, USA
| | - Patrick M Tate
- Providence College, Department of Chemistry and Biochemistry, 1 Cunningham Square, Providence, RI 02918, USA
| | - Ang Cai
- University of Rhode Island, Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, 7 Greenhouse Road, Kingston, RI 02881, USA
| | - Bongsup Cho
- University of Rhode Island, Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, 7 Greenhouse Road, Kingston, RI 02881, USA
| | - Seann P Mulcahy
- Providence College, Department of Chemistry and Biochemistry, 1 Cunningham Square, Providence, RI 02918, USA.
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Cai A, Qi S, Su Z, Shen H, Yang Y, Cai W, Dai Y. A Pilot Metabolic Profiling Study of Patients With Neonatal Jaundice and Response to Phototherapy. Clin Transl Sci 2016; 9:216-20. [PMID: 27306191 PMCID: PMC5351341 DOI: 10.1111/cts.12401] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Revised: 04/18/2016] [Accepted: 04/22/2016] [Indexed: 12/03/2022] Open
Abstract
Phototherapy has been widely used in treating neonatal jaundice, but detailed metabonomic profiles of neonatal jaundice patients and response to phototherapy have not been characterized. Our aim was to depict the serum metabolic characteristics of neonatal jaundice patients relative to controls and changes in response to phototherapy. A (1) H nuclear magnetic resonance (NMR)-based metabonomic approach was employed to study the metabolic profiling of serum from healthy infants (n = 25) and from infants with neonatal jaundice (n = 30) pre- and postphototherapy. The acquired data were processed by multivariate principal component analysis (PCA) and orthogonal partial least-squares-discriminant analysis (OPLS-DA). The PLS-DA and OPLS-DA model identified nine metabolites capable of distinguishing patients from controls. In addition, 28 metabolites such as β-glucose, α-glucose, valine, and pyruvate changed in response to phototherapy. This study offers useful information on metabolic disorders in neonatal jaundice patients and the effects of phototherapy on lipids, amino acid, and energy metabolism.
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Affiliation(s)
- A Cai
- Department of LaboratoryNanshan Affiliated Hospital of Guangdong Medical CollegeShenzhenGuangdongP.R. China
| | - S Qi
- Department of Biomedical EngineeringMedical schoolShenzhen UniversityGuangdongP.R. China
| | - Z Su
- Department of LaboratoryNanshan Affiliated Hospital of Guangdong Medical CollegeShenzhenGuangdongP.R. China
| | - H Shen
- Department of LaboratoryNanshan Affiliated Hospital of Guangdong Medical CollegeShenzhenGuangdongP.R. China
| | - Y Yang
- Department of LaboratoryNanshan Affiliated Hospital of Guangdong Medical CollegeShenzhenGuangdongP.R. China
| | - W Cai
- Department of LaboratoryNanshan Affiliated Hospital of Guangdong Medical CollegeShenzhenGuangdongP.R. China
| | - Y Dai
- Second Clinical Medical CollegeShenzhen People's HospitalJinan UniversityShenzhenGuangdong ProvinceP.R. China
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Garcia-Martinez V, Lopez Sanchez C, Hamed W, Hamed W, Hsu JH, Ferrer-Lorente R, Alshamrani M, Pizzicannella J, Vindis C, Badi I, Korte L, Voellenkle C, Niculescu LS, Massaro M, Babaeva AR, Da Silva F, Woudstra L, Berezin A, Bae MK, Del Giudice C, Bageghni SA, Krobert K, Levay M, Vignier N, Ranieri A, Magenta A, Orlandi A, Porro B, Jeon ES, Omori Y, Herold J, Barnett GA, Grochot-Przeczek A, Korpisalo P, Deffge C, Margariti A, Rong W, Maring JA, Gambardella J, Mitrofan CG, Karpinska O, Morbidelli L, Wilkinson FL, Berezin A, Kostina AS, De Mey JGR, Kumar A, Lupieri A, Pellet-Many C, Stamatiou R, Gromotowicz A, Dickhout A, Murina M, Roka-Moiia YM, Malinova L, Diaz-Canestro C, Vigliarolo T, Cuzzocrea S, Szantai A, Medic B, Cassambai S, Korda A, Revnic CR, Borile G, Diokmetzidou A, Murfitt L, Budko A, Fiordelisi A, De Wijs-Meijler DPM, Gevaert AB, Noriega De La Colina A, Benes J, Guillermo Solache Berrocal GSB, Gafarov V, Zhebel VM, Prakaschandra R, Stepien EL, Smith LE, Carluccio MA, Timasheva Y, Paci M, Dorofeyeva NA, Chimed CH, Petelina TI, Sorop O, Genis A, Parepa IR, Tscharre M, Krestjyaninov MV, Maia-Rocha C, Borges L, Sasonko ML, Kapel SS, Stam K, Sommariva E, Stojkovic S, O'reilly J, Chiva-Blanch G, Malinova L, Evtushenko A, Skopal J, Sunderland N, Gegenava T, Charnaia MA, Di Lascio N, Tarvainen SJ, Malandraki-Miller S, Uitterdijk A, Benzoni P, Ruivo E, Humphrey EJ, Arokiaraj MC, Franco D, Garcia-Lopez V, Aranega A, Lopez-Sanchez C, Franco D, Garcia-Lopez V, Aranega A, Garcia-Martinez V, Tayel S, Khader H, El-Helbawy N, Tayel S, Alrefai A, El-Barbary H, Wu JR, Dai ZK, Yeh JL, Sanjurjo-Rodriguez C, Richaud-Patin Y, Blanco FJ, Badimon L, Raya A, Cahill PA, Diomede F, Merciaro I, Trubiani O, Nahapetyan H, Swiader A, Faccini J, Boya P, Elbaz M, Zeni F, Burba I, Bertolotti M, Capogrossi MC, Pompilio G, Raucci A, Widmer-Teske R, Dutzmann J, Bauersachs J, Donde K, Daniel JM, Sedding DG, Simionescu N, Sanda GM, Carnuta MG, Stancu CS, Popescu AC, Popescu MR, Vlad A, Dimulescu DR, Sima AV, Scoditti E, Pellegrino M, Calabriso N, Carluccio MA, Storelli C, De Caterina R, Solodenkova KS, Kalinina EV, Usachiova MN, Lappalainen J, Lee-Rueckert MDEC, Kovanen PT, Biesbroek PS, Emmens RWE, Van Rossum AC, Juffermans LJM, Niessen JWM, Krijnen PAJ, Kremzer A, Samura T, Berezina T, Gronenko E, Kim MK, Park HJ, Bae SK, Sorriento D, Ciccarelli M, Vernieri E, Campiglia P, Trimarco B, Iaccarino G, Hemmings KE, Porter KE, Ainscough JF, Drinkhill MJ, Turner NA, Hiis HG, Cosson MV, Levy FO, Wieland T, Macquart C, Chatzifrangkeskou M, Evans A, Bonne G, Muchir A, Kemp E, Avkiran M, Carlomosti F, D'agostino M, Beji S, Zaccagnini G, Maimone B, Di Stefano V, De Santa F, Cordisco S, Antonini A, Ciarapica R, Dellambra E, Martelli F, Avitabile D, Capogrossi MC, Scioli MG, Bielli A, Agostinelli S, Tarquini C, Tarallo V, De Falco S, Zaninoni A, Fiorelli S, Bianchi P, Teruzzi G, Squellerio I, Turnu L, Lualdi A, Tremoli E, Cavalca V, Lee YJ, Ju ES, Choi JO, Lee GY, Lim BK, Manickam MANOJ, Jung SH, Omiya S, Otsu K, Deffge C, Nowak S, Wagner M, Braun-Dullaeus RC, Kostin S, Daniel JM, Francke A, Subramaniam S, Kanse SM, Al-Lamee K, Schofield CJ, Egginton S, Gershlick AH, Kloska D, Kopacz A, Augustyniak A, Dulak J, Jozkowicz A, Hytonen J, Halonen P, Taavitsainen J, Tarvainen S, Hiltunen T, Liimatainen T, Kalliokoski K, Knuuti J, Yla-Herttuala S, Wagner M, Weinert S, Isermann B, Lee J, Braun-Dullaeus RC, Herold J, Cochrane A, Kelaini S, Bojdo J, Vila Gonzalez M, Hu Y, Grieve D, Stitt AW, Zeng L, Xu Q, Margariti A, Reglin B, Xiang W, Nitzsche B, Maibier M, Pries AR, Vrijsen KR, Chamuleau SAJ, Verhage V, Metz CHG, Lodder K, Van Eeuwijk ECM, Van Dommelen SM, Doevendans PA, Smits AM, Goumans MJ, Sluijter JPG, Sorriento D, Bova M, Loffredo S, Trimarco B, Iaccarino G, Ciccarelli M, Appleby S, Morrell N, Baranowska-Kuczko M, Kloza M, Ambrozewicz E, Kozlowski M, Malinowska B, Kozlowska H, Monti M, Terzuoli E, Ziche M, Mahmoud AM, Jones AM, Wilkinson JA, Romero M, Duarte J, Alexander MY, Kremzer A, Berezina T, Gronenko E, Faggian G, Kostareva AA, Malashicheva AB, Leurgans TM, Nguyen TN, Irmukhamedov A, Riber LP, Mcgeogh R, Comer S, Blanco Fernandez A, Ghigo A, Blaise R, Smirnova NF, Malet N, Vincent P, Limon I, Gayral S, Hirsch E, Laffargue M, Mehta V, Zachary I, Aidonidis I, Kramkowski K, Miltyk W, Kolodziejczyk P, Gradzka A, Szemraj J, Chabielska E, Dijkgraaf I, Bitsch N, Van Hoof S, Verhaegen F, Koenen R, Hackeng TM, Roshchupkin DI, Buravleva KV, Sergienko VI, Zhernossekov DD, Rybachuk VM, Grinenko TV, Furman N, Dolotovskaya P, Shamyunov M, Denisova T, Reiner M, Akhmedov A, Keller S, Miranda M, Briand S, Barile L, Kullak-Ublick G, Luscher T, Camici G, Guida L, Magnone M, Ameri P, Lazzarini E, Fresia C, Bruzzone S, Zocchi E, Di Paola R, Cordaro M, Crupi R, Siracusa R, Campolo M, Bruschetta G, Fusco R, Pugliatti P, Esposito E, Paloczi J, Ruivo E, Gaspar R, Dinnyes A, Kobolak J, Ferdinandy P, Gorbe A, Todorovic Z, Krstic D, Savic Vujovic K, Jovicic D, Basta Jovanovic G, Radojevic Skodric S, Prostran M, Dean S, Mee CJ, Harvey KL, Hussain A, Pena C, Paltineanu B, Voinea S, Revnic F, Ginghina C, Zaglia T, Ceriotti P, Campo A, Carullo P, Armani A, Coppini R, Vida V, Olivotto I, Stellin G, Rizzuto R, De Stefani D, Sandri M, Catalucci D, Mongillo M, Soumaka E, Kloukina I, Tsikitis M, Makridakis M, Varela A, Davos C, Vlachou A, Capetanaki Y, Iqbal MM, Bennett H, Davenport B, Pinali C, Cooper G, Cartwright E, Kitmitto A, Strutynska NA, Mys LA, Sagach VF, Franco A, Sorriento D, Trimarco B, Iaccarino G, Ciccarelli M, Verzijl A, Stam K, Van Duin R, Reiss IKM, Duncker DJ, Merkus D, Shakeri H, Orije M, Leloup AJ, Van Hove CE, Van Craenenbroeck EM, De Meyer GRY, Vrints CJ, Lemmens K, Desjardins-Creapeau L, Wu R, Lamarre-Cliche M, Larochelle P, Bherer L, Girouard H, Melenovsky M, Kvasilova A, Benes J, Ruskova K, Sedmera D, Ana Barral ABV, Martin Fernandez M, Pablo Roman Garcia PRG, Juan Carlos Llosa JCLL, Manuel Naves Diaz MND, Cesar Moris CM, Jorge B Cannata-Andia JBCA, Isabel Rodriguez IR, Voevoda M, Gromova E, Maximov V, Panov D, Gagulin I, Gafarova A, Palahniuk H, Pashkova IP, Zhebel NV, Starzhynska OL, Naidoo DP, Rawojc K, Enguita FJ, Grudzien G, Cordwell SJ, White MY, Massaro M, Scoditti E, Calabriso N, Pellegrino M, Martinelli R, Gatta V, De Caterina R, Nasibullin TR, Erdman VV, Tuktarova IA, Mustafina OE, Hyttinen J, Severi S, Vorobyov GG, Sagach VF, Batmyagmar KH, Lkhagvasuren Z, Gapon LI, Musikhina NA, Avdeeva KS, Dyachkov SM, Heinonen I, Van Kranenburg M, De Beer VJ, Octavia Y, Van Geuns RJ, Van Den Meiracker AH, Van Der Velden J, Merkus D, Duncker DJ, Everson FP, Ogundipe T, Grandjean T, De Boever P, Goswami N, Strijdom H, Suceveanu AI, Suceveanu AP, Mazilu L, Tofoleanu DE, Catrinoiu D, Rohla M, Hauser C, Huber K, Wojta H, Weiss TW, Melnikova MA, Olezov NV, Gimaev RH, Khalaf H, Ruzov VI, Adao R, Mendes-Ferreira P, Santos-Ribeiro D, Rademaker M, Leite-Moreira AF, Bras-Silva C, Alvarenga LAA, Falcao RSP, Dias RR, Lacchini S, Gutierrez PS, Michel JB, Gurfinkel YUI, Atkov OYU, Teichert M, Korn C, Mogler C, Hertel S, Arnold C, Korff T, Augustin HG, Van Duin RWB, De Wijs-Meijler DPM, Verzijl A, Duncker DJ, Merkus D, D'alessandra Y, Farina FM, Casella M, Catto V, Carbucicchio C, Dello Russso A, Stadiotti I, Brambilla S, Chiesa M, Giacca M, Colombo GI, Pompilio G, Tondo C, Ahlin F, Andric T, Tihanyi D, Wojta J, Huber K, O'connell E, Butt A, Murphy L, Pennington S, Ledwidge M, Mcdonald K, Baugh J, Watson C, Suades R, Crespo J, Estruch R, Badimon L, Dyachenko A, Ryabukho V, Evtushenko V, Saushkina YU, Lishmanov YU, Smyshlyaev K, Bykov A, Popov S, Pavlyukova E, Anfinogenova Y, Szigetfu E, Kapornai B, Forizs E, Jenei ZS, Nagy Z, Merkely B, Zima E, Cai A, Dworakowski R, Gibbs T, Piper S, Jegard N, Mcdonagh T, Gegenava M, Dementieva II, Morozov YUA, Barsanti C, Stea F, Lenzarini F, Kusmic C, Faita F, Halonen PJ, Puhakka PH, Hytonen JP, Taavitsainen JM, Yla-Herttuala S, Supit EA, Carr CA, Groenendijk BCW, Gorsse-Bakker C, Panasewicz A, Sneep S, Tempel D, Van Der Giessen WJ, Duncker DJ, Rys J, Daraio C, Dell'era P, Paloczi J, Pigler J, Eder A, Ferdinandy P, Eschenhagen T, Gorbe A, Mazo MM, Amdursky N, Peters NS, Stevens MM, Terracciano CM. Poster session 2Morphogenetic mechanisms290MiR-133 regulates retinoic acid pathway during early cardiac chamber specification291Bmp2 regulates atrial differentiation through miR-130 during early heart looping formationDevelopmental genetics294Association of deletion allele of insertion/deletion polymorphism in alpha 2B adrenoceptor gene and hypertension with or without type 2 diabetes mellitus295Association of G1359A polymorphism of the endocannabinoid type 1 receptor (CNR1) with coronary artery disease (CAD) with type 2 diabetes mellitusCell growth, differentiation and stem cells - Vascular298Gamma-secretase inhibitor prevents proliferation and migration of ductus arteriosus smooth muscle cells: a role of Notch signaling in postnatal closure of ductus arteriosus299Mesenchymal stromal-like cells (MLCs) derived from induced pluripotent stem (iPS) cells: a promising therapeutic option to promote neovascularization300Sonic Hedgehog promotes mesenchymal stem cell differentiation to vascular smooth muscle cells in cardiovacsular disease301Proinflammatory cytokine secretion and epigenetic modification in endothelial cells treated LPS-GinfivalisCell death and apoptosis - Vascular304Mitophagy acts as a safeguard mechanism against human vascular smooth muscle cell apoptosis induced by atherogenic lipidsTranscriptional control and RNA species - Vascular307MicroRNA-34a role in vascular calcification308Local delivery of a miR-146a inhibitor utilizing a clinically applicable approach attenuates neointima formation after vascular injury309Long noncoding RNA landscape of hypoxic endothelial cells310Specific circulating microRNAs levels associate with hypertension, hyperglycemia and dysfunctional HDL in acute coronary syndrome patientsCytokines and cellular inflammation - Vascular313Phosphodiesterase5A up-regulation in vascular endothelium under pro-inflammatory conditions: a newly disclosed anti-inflammatory activity for the omega-3polyunsaturated aatty acid docosahexaenoic acid314Cardiovascular risk modifying with extra-low dose anticytokine drugs in rhematoid arthritis315Conversion of human M-CSF macrophages into foam cells reduces their proinflammatory responses to classical M1-polarizing activation316Lymphocytic myocarditis coincides with increased plaque inflammation and plaque hemorrhage in coronary arteries, facilitating myocardial infarction317Serum osteoprotegerin level predictsdeclined numerous of circulating endothelial- derived and mononuclear-derived progenitor cells in patients with metabolic syndromeGrowth factors and neurohormones - Vascular320Effect of gastrin-releasing peptide (GRP) on vascular inflammationSignal transduction - Heart323A new synthetic peptide regulates hypertrophy in vitro through means of the inhibition of nfkb324Inducible fibroblast-specific knockout of p38 alpha map kinase is cardioprotective in a mouse model of isoproterenol-induced cardiac hypertrophy325Regulation of beta-adrenoceptor-evoked inotropic responses by inhibitory G protein, adenylyl cyclase isoforms 5 and 6 and phosphodiesterases326Binding to RGS3 and stimulation of M2 muscarinic acetylcholine receptors modulates the substrate specificity of p190RhoGAP in cardiac myocytes327Cardiac regulation of post-translational modifications, parylation and deacetylation in LMNA dilated cardiomyopathy mouse model328Beta-adrenergic regulation of the b56delta/pp2a holoenzyme in cardiac myocytes through b56delta phosphorylation at serine 573Nitric oxide and reactive oxygen species - Vascular331Oxidative stress-induced miR-200c disrupts the regulatory loop among SIRT1, FOXO1 and eNOS332Antioxidant therapy prevents oxidative stress-induced endothelial dysfunction and Enhances Wound Healing333Morphological and biochemical characterization of red blood cell in coronary artery diseaseCytoskeleton and mechanotransduction - Heart336Novel myosin activator, JSH compounds, increased myocardial contractility without chronotropic effect in ratsExtracellular matrix and fibrosis - Vascular339Ablation of Toll-like receptor 9 causes cardiac rupture after myocardial infarction by attenuating proliferation and differentiation of cardiac fibroblasts340Altered vascular remodeling in the mouse hind limb ischemia model in Factor VII activating protease (FSAP) deficiencyVasculogenesis, angiogenesis and arteriogenesis343Pro-angiogenic effects of proly-hydroxylase inhibitors and their potential for use in a novel strategy of therapeutic angiogenesis for coronary total occlusion344Nrf2 drives angiogenesis in transcription-independent manner: new function of the master regulator of oxidative stress response345Angiogenic gene therapy, despite efficient vascular growth, is not able to improve muscle function in normoxic or chronically ischemic rabbit hindlimbs -role of capillary arterialization and shunting346Effect of PAR-1 inhibition on collateral vessel growth in the murine hind limb model347Quaking is a key regulator of endothelial cell differentiation, neovascularization and angiogenesis348"Emerging angiogenesis" in the chick chorioallantoic membrane (CAM). An in vivo study349Exosomes from cardiomyocyte progenitor cells and mesenchymal stem cells stimulate angiogenesis in vitro and in vivo via EMMPRINEndothelium352Reciprocal regulation of GRK2 and bradykinin receptor stimulation modulate Ca2+ intracellular level in endothelial cells353The roles of bone morphogenetic proteins 9 and 10 in endothelial inflammation and atherosclerosis354The contribution of GPR55 to the L-alpha-lysophosphatidylinositol-induced vasorelaxation in isolated human pulmonary arteries355The endothelial protective ACE inhibitor Zofenoprilat exerts anti-inflammatory activities through H2S production356A new class of glycomimetic drugs to prevent free fatty acid-induced endothelial dysfunction357Endothelial progenitor cells to apoptotic endothelial cell-derived microparticles ration differentiatesas preserved from reduced ejection fractionheart failure358Proosteogenic genes are activated in endothelial cells of patients with thoracic aortic aneurysm359Endothelin ETB receptors mediate relaxing responses to insulin in pericardial resistance arteries from patients with cardiovascular disease (CVD)Smooth muscle and pericytes362CX3CR1 positive myeloid cells regulate vascular smooth muscle tone by inducing calcium oscillations via activation of IP3 receptors363A novel function of PI3Kg on cAMP regulation, role in arterial wall hyperplasia through modulation of smooth muscle cells proliferation364NRP1 and NRP2 play important roles in the development of neointimal hyperplasia in vivo365Azithromycin induces autophagy in aortic smooth muscle cellsCoagulation, thrombosis and platelets368The real time in vivo evaluation of platelet-dependent aldosterone prothrombotic action in mice369Development of a method for in vivo detection of active thrombi in mice370The antiplatelet effects of structural analogs of the taurine chloramine371The influence of heparin anticoagulant drugs on functional state of human platelets372Regulation of platelet aggregation and adenosine diphosphate release by d dimer in acute coronary syndrome (in vitro study)Oxygen sensing, ischaemia and reperfusion375Sirtuin 5 mediates brain injury in a mouse model of cerebral ischemia-reperfusion376Abscisic acid: a new player in cardiomyocyte protection from ischaemia?377Protective effects of ultramicronized palmitoylethanolamide (PEA-um) in myocardial ischaemia and reperfusion injury in vivo378Identification of stem cell-derived cardiomyocytes using cardiac specific markers and additional testing of these cells in simulated ischemia/reperfusion system379Single-dose intravenous metformin treatment could afford significant protection of the injured rat kidney in an experimental model of ischemia-reperfusion380Cardiotoxicity of long acting muscarinic receptor antagonists used for chronic obstructive pulmonary disease381Dependence antioxidant potential on the concentration of amino acids382The impact of ischemia-reperfusion on physiological parameters,apoptosis and ultrastructure of rabbit myocardium with experimental aterosclerosisMitochondria and energetics385MicroRNA-1 dependent regulation of mitochondrial calcium uniporter (MCU) in normal and hypertrophied hearts386Mitochondrial homeostasis and cardioprotection: common targets for desmin and aB-crystallin387Overexpression of mitofusin-2 (Mfn2) and associated mitochondrial dysfunction in the diabetic heart388NO-dependent prevention of permeability transition pore (MPTP) opening by H2S and its regulation of Ca2+ accumulation in rat heart mitochondria389G protein coupled receptor kinase 2 (GRK2) is fundamental in recovering mitochondrial morphology and function after exposure to ionizing radiation (IR)Gender issues392Sex differences in pulmonary vascular control; focus on the nitric oxide pathwayAging395Heart failure with preserved ejection fraction develops when feeding western diet to senescence-accelerated mice396Cardiovascular markers as predictors of cognitive decline in elderly hypertensive patients397Changes in connexin43 in old rats with volume overload chronic heart failureGenetics and epigenetics400Calcium content in the aortic valve is associated with 1G>2G matrix metalloproteinase 1 polymorphism401Neuropeptide receptor gene s (NPSR1) polymorphism and sleep disturbances402Endothelin-1 gene Lys198Asn polymorphism in men with essential hypertension complicated and uncomplicated with chronic heart failure403Association of common polymorphisms of the lipoprotein lipase and pon1 genes with the metabolic syndrome in a sample of community participantsGenomics, proteomics, metabolomics, lipidomics and glycomics405Gene expression quantification using multiplexed color-coded probe pairs to determine RNA content in sporadic cardiac myxoma406Large-scale phosphorylation study of the type 2 diabetic heart subjected to ischemia / reperfusion injury407Transcriptome-based identification of new anti-inflammatory properties of the olive oil hydroxytyrosol in vascular endothelial cell under basal and proinflammatory conditions408Gene polymorphisms combinations and risk of myocardial infarctionComputer modelling, bioinformatics and big data411Comparison of the repolarization reserve in three state-of-the-art models of the human ventricular action potentialMetabolism, diabetes mellitus and obesity414Endothelial monocyte-activating polypeptide-II improves heart function in type -I Diabetes mellitus415Admission glucose level is independent predictor of impaired left ventricular function in patients with acute myocardial infarction: a two dimensional speckle-tracking echocardiography study416Association between biochemical markers of lipid profile and inflammatory reaction and stiffness of the vascular wall in hypertensive patients with abdominal obesity417Multiple common co-morbidities produce left ventricular diastolic dysfunction associated with coronary microvascular dysfunction, oxidative stress and myocardial stiffening418Investigating the cardiovascular effects of antiretroviral drugs in a lean and high fat/sucrose diet rat model of obesity419Statins in the treatment of non-alcoholic steatohepatitis (NASH). Our experience from a 2-year prospective study in Constanta County, Romania420Epicardial adipose tissue as a predictor of cardiovascular outcome in patients with ACS undergoing PCI?Arterial and pulmonary hypertension423Dependence between heart rhythm disorers and ID polymorphism of ACE gene in hypertensive patients424Molecular mechanisms underlying the beneficial effects of Urocortin 2 in pulmonary arterial hypertension425Inhibition of TGf-b axis and action of renin-angiotensin system in human ascending aorta aneurysms426Early signs of microcirculation and macrocirculation abnormalities in prehypertension427Vascular smooth muscle cell-expressed Tie-2 controls vascular tone428Cardiac and vascular remodelling in the development of chronic thrombo-embolic pulmonary hypertension in a novel swine modelBiomarkers431Arrhythmogenic cardiomyopathy: a new, non invasive biomarker432Can circulating microRNAs distinguish type 1 and type 2 myocardial infarction?433Design of a high-throughput multiplex proteomics assay to identify left ventricular diastolic dysfunction in diabetes434Monocyte-derived and P-selectin-carrying microparticles are differently modified by a low fat diet in patients with cardiovascular risk factors who will and who will not develop a cardiovascular event435Red blood cell distribution width assessment by polychromatic interference microscopy of thin films in chronic heart failure436Invasive and noninvasive evaluation of quality of radiofrequency-induced cardiac denervation in patients with atrial fibrillation437The effect of therapeutic hypothermia on the level of brain derived neurotrophic factor (BDNF) in sera following cardiopulmonary resustitation438Novel biomarkers to predict outcome in patients with heart failure and severe aortic stenosis439Biological factors linking depression and anxiety to cardiovascular disease440Troponins and myoglobin dynamic at coronary arteries graftingInvasive, non-invasive and molecular imaging443Diet composition effects on the genetic typing of the mouse ob mutation: a micro-ultrasound characterization of cardiac function, macro and micro circulation and liver steatosis444Characterization of pig coronary and rabbit aortic lesions using IV-OCT quantitative analysis: correlations with histologyGene therapy and cell therapy447Enhancing the survival and angiogenic potential of mouse atrial mesenchymal cells448VCAM-1 expression in experimental myocardial infarction and its relation to bone marrow-derived mononuclear cell retentionTissue engineering451Advanced multi layered scaffold that increases the maturity of stem cell-derived human cardiomyocytes452Response of engineered heart tissue to simulated ischemia/reperfusion in the presence of acute hyperglycemic conditions453Serum albumin hydrogels prevent de-differentiation of neonatal cardiomyocytes454A novel paintbrush technique for transfer of low viscosity ultraviolet light curable cyan methacrylate on saline immersed in-vitro sheep heart. Cardiovasc Res 2016. [DOI: 10.1093/cvr/cvw149] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Qin H, Cai A, Xi H, Yuan J, Chen L. ZnRF3 induces apoptosis of gastric cancer cells by antagonizing Wnt and Hedgehog signaling. Panminerva Med 2015; 57:167-175. [PMID: 25923840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
AIM The aim of this paper was to investigate the function an importance of E3-ubiquitin ligase ZnRF3 in the progression of cancer cell growth. METHODS A total of 58 patients (44 males and 14 females) were enrolled in the study and their gastric tumors were removed surgically and were staged by the TNM approach. Among these patients, 43 patients died and 15 survived at the time of this study. The tumors and the paracancerous tissues were examined by immunohostochemistry for the expression of ZnRF3. We assessed the expression of ZnRF3 in gastric tumors and paracancerous tissues from our patients and related this to patient survival. RESULTS A large proportion of malignant cancers of the stomach are gastric adenocarcinoma type. In spite of many studies, the molecular basis for this cancer is still unclear. Deregulated cell proliferative signaling via Wnt/β-catenin and Hedgehog pathways is considered important in the pathogenesis of many cancers including the gastric cancer. Recent studies identified ZnRF3 protein, which is a E3-ubiquitin ligase and which is either deleted or mutated in cancers, to inhibit Wnt signaling. However, the significance of ZnRF3 in the control of gastric cancer and whether it also regulates Hedgehog signaling pathway, is not known. ZnRF3 expression was much higher in tumors from aged patients. Male patients showed higher mortality than the females. Mechanistic studies using normal gastric cells (GES1) and gastric cancer cells (MGC-803) infected with either AdZnRF3 or AdGFP viral vectors, revealed that ZnRF3 overexpression causes significantly more apoptosis and lowered proliferation of cancer cells. ZnRF3 overexpression led to greatly reduced levels of Lgr5, a component of Wnt signaling and also Gli1, a component of Hedgehog signaling. Thus, ZnRF3 negatively influences both the Wnt and Hedgehog proliferative pathways and probably this way it negatively regulates cancer progression. These results suggest the importance of normal ZnRF3 function in checking the progression of cancer cell growth and indicate that a lack of this protein can lead to poorer clinical outcomes for gastric cancer patients. CONCLUSION We observed a clear relationship between ZnRF3 expression in paracancerous tissue and tumor size.
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Affiliation(s)
- H Qin
- General Surgery Department, PLA General Hospital, Beijing, China -
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Jones R, Hollis-Smith S, Cai A. P-187: Elderly patient insight into deactivation of ICD devices. Eur Geriatr Med 2015. [DOI: 10.1016/s1878-7649(15)30285-0] [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]
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Ball J, Cai A, Pineau-Mitchell A, Budack K, Brown K. A registry comparison of ESC and nice guideines 95 in the assessment of stable angina in a UK district hospital. Atherosclerosis 2015. [DOI: 10.1016/j.atherosclerosis.2015.04.472] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Li J, Cai A, Ding L, Sellamuthu B, Perreault J. Aerobic sludge granulation in a Reverse Flow Baffled Reactor (RFBR) operated in continuous-flow mode for wastewater treatment. Sep Purif Technol 2015. [DOI: 10.1016/j.seppur.2015.04.045] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Ma H, Wang L, Niesen DB, Cai A, Cho BP, Tan W, Gu Q, Xu J, Seeram NP. Structure Activity Related, Mechanistic, and Modeling Studies of Gallotannins containing a Glucitol-Core and α-Glucosidase. RSC Adv 2015; 5:107904-107915. [PMID: 26989482 PMCID: PMC4792293 DOI: 10.1039/c5ra19014b] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Gallotannins containing a glucitol core, which are only produced by members of the maple (Acer) genus, are more potent α-glucosidase inhibitors than the clinical drug, acarbose. While this activity is influenced by the number of substituents on the glucitol core (e.g. more galloyl groups leads to increased activity), the mechanisms of inhibitory action are not known. Herein, we investigated ligand-enzyme interactions and binding mechanisms of a series of 'glucitol-core containing gallotannins (GCGs)' against the α-glucosidase enzyme. The GCGs included ginnalins A, B and C (containing two, one, and one galloyl/s, respectively), maplexin F (containing 3 galloyls) and maplexin J (containing 4 galloyls). All of the GCGs were noncompetitive inhibitors of α-glucosidase and their interactions with the enzyme were further explored using biophysical and spectroscopic measurements. Thermodynamic parameters (by isothermal titration calorimetry) revealed a 1:1 binding ratio between GCGs and α-glucosidase. The binding regions between the GCGs and α-glucosidase, probed by a fluorescent tag, 1,1'-bis(4-anilino-5-napththalenesulfonic acid, revealed that the GCGs decreased the hydrophobic surface of the enzyme. In addition, circular dichroism analyses showed that the GCGs bind to α-glucosidase and lead to loss of the secondary α-helix structure of the protein. Also, molecular modeling was used to predict the binding site between the GCGs and the α-glucosidase enzyme. This is the first study to evaluate the mechanisms of inhibitory activities of gallotannins containing a glucitol core on α-glucosidase.
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Affiliation(s)
- Hang Ma
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Ling Wang
- School of Pharmaceutical Sciences, Sun Yat-Sen University, 132 East Circle Road at University City, Guangzhou 510006, China
- Pre-Incubator for Innovative Drugs & Medicine, School of Bioscience and Bioengineering, South China University of Technology, Guangzhou 510006, China
| | - Daniel B. Niesen
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Ang Cai
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Bongsup P. Cho
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Wen Tan
- Pre-Incubator for Innovative Drugs & Medicine, School of Bioscience and Bioengineering, South China University of Technology, Guangzhou 510006, China
| | - Qiong Gu
- School of Pharmaceutical Sciences, Sun Yat-Sen University, 132 East Circle Road at University City, Guangzhou 510006, China
| | - Jun Xu
- School of Pharmaceutical Sciences, Sun Yat-Sen University, 132 East Circle Road at University City, Guangzhou 510006, China
| | - Navindra P. Seeram
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
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Li J, Cai A, Wang M, Ding L, Ni Y. Aerobic granulation in a modified oxidation ditch with an adjustable volume intraclarifier. Bioresour Technol 2014; 157:351-354. [PMID: 24582950 DOI: 10.1016/j.biortech.2014.01.130] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2013] [Revised: 01/27/2014] [Accepted: 01/31/2014] [Indexed: 06/03/2023]
Abstract
A modified oxidation ditch (MOD) with an adjustable volume intraclarifier was proposed and used to achieve aerobic sludge granulation in continuous flow process. This MOD with working volume of 60L treated onsite wastewater from a town. Excellent aerobic granules with mean diameter of 600μm and sludge volume index (SVI) of 44mL/g were obtained in 120day. Bacterial community analysis revealed that most species from seed sludge were preserved in both MOD and granule SBR (G-SBR) except bacteria (Bacteroidetes) might be easily washed out during granulation. Some different bacterial communities were found in sludges from sequencing batch and continuous flow reactors. Presence of metal ions and inorganics in raw wastewater had positive effect on granule formation, but an adjustable volume intraclarifier for controlling selection pressure and deleting return sludge pump played a key role in aerobic sludge granulation.
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Affiliation(s)
- Jun Li
- College of Civil Engineering and Architecture, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, PR China.
| | - Ang Cai
- College of Civil Engineering and Architecture, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, PR China
| | - Miao Wang
- College of Civil Engineering and Architecture, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, PR China
| | - Libin Ding
- College of Civil Engineering and Architecture, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, PR China
| | - Yongjiong Ni
- College of Civil Engineering and Architecture, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, PR China
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Kisko A, Vereb M, Barreiro Perez M, Martin Fernandez M, Cimadevilla Fernandez O, Renilla Gonzalez A, Diaz Pelaez E, Rozado Castano J, Dobson P, Cai P, Leung P, Marshall K, Albarjas M, Rogers T, Hill J, Alfakih K, Cai A, Dobson P, Leung P, Marshall K, Albarjas M, Rogers T, Basu S, Alfakih K, Andreini D, Pontone G, Mushtaq S, Bertella E, Conte E, Baggiano A, Annoni A, Formenti A, Fiorentini C, Pepi M. Oral Abstract session * Non invasive evaluation of coronary artery disease: 12/12/2013, 14:00-15:30 * Location: Bursa. Eur Heart J Cardiovasc Imaging 2013. [DOI: 10.1093/ehjci/jet220] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Cai A, Dobson P, Leung P, Marshall K, Albarjas M, Rogers T, Basu S, Alfakih K. 110 THE FEASIBILITY OF USING CT CORONARY ANGIOGRAPHY IN PATIENTS WITH STABLE CHEST PAIN AND MODERATE TO HIGH PRE-TEST PROBABILITY OF CORONARY ARTERY DISEASE. Heart 2013. [DOI: 10.1136/heartjnl-2013-304019.110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Campbell R, Hofmann D, Hatch S, Gordon P, Lempp H, Das L, Blumbergs P, Limaye V, Vermaak E, McHugh N, Edwards MH, Jameson K, Sayer AA, Dennison E, Cooper C, Salvador FB, Huertas C, Isenberg D, Jackson EJ, Middleton A, Churchill D, Walker-Bone K, Worsley PR, Mottram S, Warner M, Morrissey D, Gadola S, Carr A, Cooper C, Stokes M, Srivastava RN, Sanghi D, Srivastava RN, Sanghi D, Elbaz A, Mor A, Segal G, Drexler M, Norman D, Peled E, Rozen N, Goryachev Y, Debbi EM, Haim A, Rozen N, Wolf A, Debi R, Mor A, Segal G, Debbi EM, Cohen MS, Igolnikov I, Bar Ziv Y, Benkovich V, Bernfeld B, Rozen N, Elbaz A, Collins J, Moots RJ, Clegg PD, Milner PI, Ejtehadi HD, Nelson PN, Wenham C, Balamoody S, Hodgson R, Conaghan P, Wilkie R, Blagojevic M, Jordan KP, Mcbeth J, Peffers MJ, Beynon RJ, Thornton DJ, Clegg PD, Chapman R, Chapman V, Walsh D, Kelly S, Hui M, Zhang W, Doherty S, Rees F, Muir K, Maciewicz R, Doherty M, Snelling S, Davidson RK, Swingler T, Price A, Clark I, Stockley E, Hathway G, Faas H, Auer D, Chapman V, Hirsch G, Hale E, Kitas G, Klocke R, Abraham A, Pearce MS, Mann KD, Francis RM, Birrell F, Tucker M, Mellon SJ, Jones L, Price AJ, Dieppe PA, Gill HS, Ashraf S, Chapman V, Walsh DA, McCollum D, McCabe C, Grieve S, Shipley J, Gorodkin R, Oldroyd AG, Evans B, Greenbank C, Bukhari M, Rajak R, Bennett C, Williams A, Martin JC, Abdulkader R, MacNicol C, Brixey K, Stephenson S, Clunie G, Andrews RN, Oldroyd AG, Evans B, Greenbank C, Bukhari M, Clark EM, Gould VC, Carter L, Morrison L, Tobias JH, Pye SR, Vanderschueren D, O'Neill TW, Lee DM, Jans I, Billen J, Gielen E, Laurent M, Claessens F, Adams JE, Ward KA, Bartfai G, Casanueva F, Finn JD, Forti G, Giwercman A, Han TS, Huhtaniemi I, Kula K, Lean ME, Pendleton N, Punab M, Wu FC, Boonen S, Mercieca C, Webb J, Shipley J, Bhalla A, Fairbanks S, Moss KE, Collins C, Sedgwick P, Clark EM, Gould VC, Morrison L, Tobias JH, Parker J, Greenbank C, Evans B, Oldroyd AG, Bukhari M, Harvey NC, Cole ZA, Crozier SR, Ntani G, Mahon PA, Robinson SM, Inskip HM, Godfrey KM, Dennison EM, Cooper C, Bridges M, Ruddick S, Holroyd CR, Mahon P, Crozier SR, Godfrey K, Inskip HM, Cooper C, Harvey NC, Bridges M, Ruddick S, McNeilly T, McNally C, Beringer T, Finch M, Coda A, Davidson J, Walsh J, Fowlie P, Carline T, Santos D, Patil P, Rawcliffe C, Olaleye A, Moore S, Fox A, Sen D, Ioannou Y, Nisar S, Rankin K, Birch M, Finnegan S, Rooney M, Gibson DS, Malviya A, Ferris CM, Rushton SP, Foster HE, Hanson H, Muthumayandi K, Deehan DJ, Birt L, Poland F, MacGregor A, Armon K, Pfeil M, McErlane F, Beresford MW, Baildam EM, Thomson W, Hyrich K, Chieng A, Davidson J, Foster HE, Gardner-Medwin J, Lunt M, Wedderburn L, Gibson DS, Finnegan S, Newell K, Evans A, Manning G, Scaife C, McAllister C, Pennington SR, Duncan M, Moore T, Rooney M, Pericleous C, Croca SC, Giles I, Alber K, Yong H, Isenberg D, Midgely A, Beresford MW, Rahman A, Ioannou Y, Rzewuska M, Mallen C, Strauss VY, Belcher J, Peat G, Byng-Maddick R, Wijendra M, Penn H, Roddy E, Muller S, Hayward R, Mallen C, Kamlow F, Pakozdi A, Jawad A, Green DJ, Muller S, Mallen C, Hider SL, Singh Bawa S, Bawa S, Turton A, Palmer M, Grieve S, Lewis J, Moss T, McCabe C, Goodchild CE, Tang N, Scott D, Salkovskis P, Selvan S, Williamson L, Selvan S, Williamson L, Thalayasingam N, Higgins M, Saravanan V, Rynne M, Hamilton JD, Heycock C, Kelly C, Norton S, Sacker A, Done J, Young A, Smolen JS, Fleischmann RM, Emery P, van Vollenhoven RF, Guerette B, Santra S, Kupper H, Redden L, Kavanaugh A, Keystone EC, van der Heijde D, Weinblatt ME, Mozaffarian N, Guerette B, Kupper H, Liu S, Kavanaugh A, Zhang N, Wilkinson S, Riaz M, Ostor AJ, Nisar MK, Burmester G, Mariette X, Navarro-Blasco F, Oezer U, Kary S, Unnebrink K, Kupper H, Jobanputra P, Maggs F, Deeming A, Carruthers D, Rankin E, Jordan A, Faizal A, Goddard C, Pugh M, Bowman S, Brailsford S, Nightingale P, Tugnet N, Cooper SC, Douglas KM, Edwin Lim CS, Bee Lian Low S, Joy C, Hill L, Davies P, Mukherjee S, Cornell P, Westlake SL, Richards S, Rahmeh F, Thompson PW, Breedveld F, Keystone E, van der Heijde D, Landewe R, Smolen JS, Guerette B, McIlraith M, Kupper H, Liu S, Kavanaugh A, Byng-Maddick R, Penn H, Abdulkader R, Dharmapalaiah C, Shand L, Rose G, Clunie G, Watts R, Eldashan A, Dasgupta B, Borg FA, Bell GM, Anderson AE, Harry RA, Stoop JN, Hilkens CM, Isaacs J, Dickinson A, McColl E, Banik S, Smith L, France J, Bawa S, Rutherford A, Scott Russell A, Smith J, Jassim I, Withrington R, Bacon P, De Lord D, McGregor L, Morrison I, Stirling A, Porter DR, Saunders SA, Else S, Semenova O, Thompson H, Ogunbambi O, Kallankara S, Baguley E, Patel Y, Alzabin S, Abraham S, Taher TE, Palfeeman A, Hull D, McNamee K, Jawad A, Pathan E, Kinderlerer A, Taylor P, Williams RO, Mageed RA, Iaremenko O, Mikitenko G, Ferrari M, Kamalati T, Pitzalis C, Tugnet N, Pearce F, Tosounidou S, Obrenovic K, Erb N, Packham J, Sandhu R, White C, Cardy CM, Justice E, Frank M, Li L, Lloyd M, Ahmed A, Readhead S, Ala A, Fittall M, Manson J, Ioannou Y, Sibilia J, Marc Flipo R, Combe B, Gaillez C, Le Bars M, Poncet C, Elegbe A, Westhovens R, Hassanzadeh R, Mangan C, France J, Bawa S, Weinblatt ME, Fleischmann R, van Vollenhoven R, Emery P, Huizinga TWJ, Goldermann R, Duncan B, Timoshanko J, Luijtens K, Davies O, Dougados M, Hewitt J, Owlia M, Dougados M, Gaillez C, Le Bars M, Poncet C, Elegbe A, Schiff M, Alten R, Kaine JL, Keystone E, Nash PT, Delaet I, Qi K, Genovese MC, Clark J, Kardash S, Wong E, Hull R, McCrae F, Shaban R, Thomas L, Young-Min S, Ledingham J, Genovese MC, Covarrubias Cobos A, Leon G, Mysler EF, Keiserman MW, Valente RM, Nash PT, Abraham Simon Campos J, Porawska W, Box JH, Legerton CW, Nasonov EL, Durez P, Pappu R, Delaet I, Teng J, Alten R, Edwards CJ, Arden N, Campbell J, van Staa T, Housden C, Sargeant I, Edwards CJ, Arden N, Campbell J, van Staa T, Housden C, Sargeant I, Choy E, McAuliffe S, Roberts K, Sargeant I, Emery P, Sarzi-Puttini P, Moots RJ, Andrianakos A, Sheeran TP, Choquette D, Finckh A, Desjuzeur ML, Gemmen EK, Mpofu C, Gottenberg JE, Bukhari M, Shah P, Kitas G, Cox M, Nye A, O'Brien A, Jones P, Sargeant I, Jones GT, Paudyal P, MacPherson H, Sim J, Doherty M, Ernst E, Fisken M, Lewith G, Tadman J, Macfarlane GJ, Mariette X, Bertin P, Arendt C, Terpstra I, VanLunen B, de Longueville M, Zhou H, Cai A, Lacy E, Kay J, Keystone E, Matteson E, Hu C, Hsia E, Doyle M, Rahman M, Shealy D, Scott DL, Ibrahim F, Abozaid H, Choy E, Hassell A, Plant M, Richards S, Walker D, Simpson G, Kowalczyk A, Prouse P, Brown A, George M, Kumar N, Mackay K, Marshall S, Nash PT, Ludivico CL, Delaet I, Qi K, Murthy B, Corbo M, Kaine JL, Emery P, Smolen JS, Samborski W, Berenbaum F, Davies O, Ambrugeat J, Bennett B, Burkhardt H, Prouse P, Brown A, George M, Kumar N, Mackay K, Marshall S, Bykerk V, Ostor AJ, Roman Ivorra J, Wollenhaupt J, Stancati A, Bernasconi C, Sibilia J, Scott DGI, Claydon P, Ellis C, Buchan S, Pope J, Fleischmann R, Dougados M, Bingham CO, Massarotti EM, Wollenhaupt J, Duncan B, Coteur G, Weinblatt M, Hull D, Ball C, Abraham S, Ainsworth T, Kermik J, Woodham J, Haq I, Quesada-Masachs E, Carolina Diaz A, Avila G, Acosta I, Sans X, Alegre C, Marsal S, McWilliams D, Kiely PD, Young A, Walsh DA, Fleischmann R, Bolce R, Wang J, Ingham M, Dehoratius R, Decktor D, Rao V, Pavlov A, Klearman M, Musselman D, Giles J, Bathon J, Sattar N, Lee J, Baxter D, McLaren JS, Gordon MM, Thant KZ, Williams EL, Earl S, White P, Williams J, Westlake SL, Ledingham J, Jan AK, Bhatti AI, Stafford C, Carolan M, Ramakrishnan SA. Muscle disorders * 111. The impact of fatigue in patients with idiopathic inflammatory myopathy: a mixed method study. Rheumatology (Oxford) 2012. [DOI: 10.1093/rheumatology/kes109] [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: 11/13/2022] Open
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Johnson S, Cai A, Riley P, Millar LM, McConkey H, Bannister C. A survey of Core Medical Trainees’ opinions on the ePortfolio record of educational activities: beneficial and cost-effective? J R Coll Physicians Edinb 2012; 42:15-20. [DOI: 10.4997/jrcpe.2012.104] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Tremel A, Cai A, Tirtaatmadja N, Hughes B, Stevens G, Landman K, O’Connor A. Cell migration and proliferation during monolayer formation and wound healing. Chem Eng Sci 2009. [DOI: 10.1016/j.ces.2008.10.008] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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