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Articles 4651 - 4680 of 195906
Full-Text Articles in Entire DC Network
Diagnostic Ions Guided 2d-Locating Strategy For Characterization Of Chemical Analogues In Complex Herbal Medicines Using Liquid Chromatography-Ion Mobility-Mass Spectrometry, Meng-Ning Li, Zi-Xuan Zhang, Hui-Ying Wang, Wen Gao, Ping Li, Hua Yang
Diagnostic Ions Guided 2d-Locating Strategy For Characterization Of Chemical Analogues In Complex Herbal Medicines Using Liquid Chromatography-Ion Mobility-Mass Spectrometry, Meng-Ning Li, Zi-Xuan Zhang, Hui-Ying Wang, Wen Gao, Ping Li, Hua Yang
Journal of Food and Drug Analysis
Rapid characterization of chemical analogues in potentially toxic complex matrix was essential for prevention of accidental poisoning. On the basis of the fragment ions possessed not only the same retention times (RT) but the same drift times (DT) on liquid chromatography-ion mobility-mass spectrometry (LC-IM-MS), an alternating frames (AF)-data independent acquisition (DIA) was utilized for simultaneous detection and rapid match of precursor/product ions with a fast switch of low/high collision energy (CE). A diagnostic ions guided 2D-locating strategy was developed for identification of chemical analogues in potentially toxic herbal medicines using LC-IM-MS. Firstly, the 2D-locations (RT, DT) of diagnostic ions were …
Pharmacokinetics Of Panduratin A Following Oral Administration Of A Boesenbergia Pandurata Extract To Rats, Jihyun Won, Keumhan Noh, Jae-Kwan Hwang, Beom Soo Shin, Wonku Kang
Pharmacokinetics Of Panduratin A Following Oral Administration Of A Boesenbergia Pandurata Extract To Rats, Jihyun Won, Keumhan Noh, Jae-Kwan Hwang, Beom Soo Shin, Wonku Kang
Journal of Food and Drug Analysis
Boesenbergia pandurata and its major active ingredient, panduratin A (PAN), exhibit antibacterial, anti-oxidant, anti-inflammatory, and anti-obesity effects. We explored the time course of the plasma and tissue (in the major organs, gums and skin) concentrations of PAN after oral administration of a B. pandurata extract to rats. Model-dependent analysis was used to quantify the skin distribution of PAN after systemic exposure. The PAN level peaked at 1.12 ± 0.22 μg/mL after 3 h, and then biexponentially decayed with a terminal half-life of 9 h. The mean clearance (Cl/F) was 2.33 ± 0.68 L/h/kg. The PAN levels in organs were in …
Identification Of Oxytocin Receptor Activating Chemical Components From Traditional Japanese Medicines, Yuko Maejima, Shoichiro Horita, Shoko Yokota, Tomoyuki Ono, Peter Proks, Hiromi Yoshida-Komiya, Yoichi Ueta, Katsuhiko Nishimori, Shingen Misaka, Kenju Shimomura
Identification Of Oxytocin Receptor Activating Chemical Components From Traditional Japanese Medicines, Yuko Maejima, Shoichiro Horita, Shoko Yokota, Tomoyuki Ono, Peter Proks, Hiromi Yoshida-Komiya, Yoichi Ueta, Katsuhiko Nishimori, Shingen Misaka, Kenju Shimomura
Journal of Food and Drug Analysis
Oxytocin (Oxt) is known to regulate social communication, stress and body weight. The activation of Oxt receptors (OTR) has clinical potential to abate stress disorders and metabolic syndrome. Kamikihito (KKT) is a traditional Japanese medicine used to treat psychological stress-related disorders. We investigated the effects of KKT, its ingredients and chemical components on Oxt neurons and OTR. C-Fos expression was examined after oral and peripheral administration of KKT in rats. Electrophysiological change of Oxt neurons and Oxt release upon application of KKT were measured in rat brain slice. The direct effect of KKT, its ingredients and its chemical components were …
A Novel Nrf2/Are Inhibitor Gossypol Induces Cytotoxicity And Sensitizes Chemotherapy Responses In Chemo-Refractory Cancer Cells, Ya-Chu Tang, Hsin-Huei Chang, Huang-Hui Chen, Jau-Ying Yao, Yu-Tsen Chen, Yung-Jen Chuang, Jang-Yang Chang, Ching-Chuan Kuo
A Novel Nrf2/Are Inhibitor Gossypol Induces Cytotoxicity And Sensitizes Chemotherapy Responses In Chemo-Refractory Cancer Cells, Ya-Chu Tang, Hsin-Huei Chang, Huang-Hui Chen, Jau-Ying Yao, Yu-Tsen Chen, Yung-Jen Chuang, Jang-Yang Chang, Ching-Chuan Kuo
Journal of Food and Drug Analysis
NRF2/ARE signaling pathway is a principal regulator of cellular redox homoeostasis. The stress-induced transcription factor, NRF2, can shield cells from the oxidative damages via binding to the consensus antioxidant-responsive element (ARE) and driving several cyto-protective genes expression. Increasing evidence indicated that aberrant activation of NRF2 in malignant cells may support their survival through various pathways to detoxify chemotherapy drugs, attenuate drug-induced oxidative stress, or induce drug efflux, all of which are crucial in developing drug resistance. Accordingly, NRF2 is a potential drug target for improving the effectiveness of chemotherapy and to reverse drug resistance in cancer cells. A stable ARE-driven …
Curcumin-Induced Antitumor Effects On Triple-Negative Breast Cancer Patient-Derived Xenograft Tumor Mice Through Inhibiting Salt-Induced Kinase-3 Protein, Tzu-Chun Cheng, John Oliver Sayseng, Shih-Hsin Tu, Ting-Ching Juan, Chia-Lang Fang, You-Cheng Liao, Cheng-Ying Chu, Hui-Wen Chang, Yun Yen, Li-Ching Chen, Yuan-Soon Ho
Curcumin-Induced Antitumor Effects On Triple-Negative Breast Cancer Patient-Derived Xenograft Tumor Mice Through Inhibiting Salt-Induced Kinase-3 Protein, Tzu-Chun Cheng, John Oliver Sayseng, Shih-Hsin Tu, Ting-Ching Juan, Chia-Lang Fang, You-Cheng Liao, Cheng-Ying Chu, Hui-Wen Chang, Yun Yen, Li-Ching Chen, Yuan-Soon Ho
Journal of Food and Drug Analysis
This study demonstrated for the first time that curcumin effectively inhibits the growth of triple-negative breast cancer (TNBC) tumors by inhibiting the expression of salt-induced kinase-3 (SIK3) protein in patient-derived xenografted tumor mice (TNBC-PDX). For TNBC patients, chemotherapy is the only option for postoperative adjuvant treatment. In this study, we detected the SIK3 mRNA expression in paired-breast cancer tissues by PCR analysis. The results revealed that SIK3 mRNA expression was significantly higher in tumor tissues when compared to the normal adjacent tissues (73.25 times, n=183). Thus, it is proposed for the first time that the antitumor effect induced by curcumin …
Anti-Lymphangiogenic Diterpenes From The Bark Of Calocedrus Macrolepis Var. Formosana, Tzong-Huei Lee, Chin-Lin Hsieh, Ho-Cheng Wu, Shih-Wei Wang, Chen-Lin Yu, George Hsiao, Ming-Jen Cheng, Wen-Tsong Hsieh, Yueh-Hsiung Kuo
Anti-Lymphangiogenic Diterpenes From The Bark Of Calocedrus Macrolepis Var. Formosana, Tzong-Huei Lee, Chin-Lin Hsieh, Ho-Cheng Wu, Shih-Wei Wang, Chen-Lin Yu, George Hsiao, Ming-Jen Cheng, Wen-Tsong Hsieh, Yueh-Hsiung Kuo
Journal of Food and Drug Analysis
Eight new diterpenes, 6α,7β-dihydroxyferruginol (1), 6α,7α-dihydroxyferruginol (2), 6α-hydroxyhinokiol (3), 4α-hydroxy-7-oxo-18-norabieta-8,11,13-trien-4α-ol (4a), 15,16-dehydrosugiol (5), 7-methoxy-6,7-secoabieta-8,11,13-triene-6,12-diol (6), 7α-acetoxyabieta-8,12-diene-11,14-dione (7), 7α-butyloxyethyloxyabieta-8,12-diene-11,14-dione (8), along with four known compounds, 6,7-dehydroferruginol (9), 12-hydroxy-6,7-secoabieta-8,11,13-triene-6,7-dial (10), 7α-11-dihydroxy-12-methoxy-8,11,13-abietatriene (11), and 11,14-dihydroxy-8,11,13-abietatrien-7-one (12) were successfully isolated from the bark of Calocedrus macrolepis var. formosana. The structures of all isolates were elucidated by physical data (appearance, UV, IR, optical rotation) and spectroscopic data (1D, 2D NMR, and HREIMS). Compounds 9, 10, 11, and 12 showed promising growth-inhibitory effect on human lymphatic endothelial cells (LECs). Among these compounds, compound 10 exerted the most potent anti-lymphangiogenesis property by suppressing cell growth and …
Medicarpin Isolated From Radix Hedysari Ameliorates Brain Injury In A Murine Model Of Cerebral Ischemia, Chang-Ming Chern, Chung-Kuang Lu, Kuo-Tong Liou, Yea-Hwey Wang, Keng-Chang Tsai, Chia-Lin Chang, Chia-Che Chang, Yuh-Chiang Shen
Medicarpin Isolated From Radix Hedysari Ameliorates Brain Injury In A Murine Model Of Cerebral Ischemia, Chang-Ming Chern, Chung-Kuang Lu, Kuo-Tong Liou, Yea-Hwey Wang, Keng-Chang Tsai, Chia-Lin Chang, Chia-Che Chang, Yuh-Chiang Shen
Journal of Food and Drug Analysis
The development of effective post-stroke therapy is highly demanded. Medicarpin is a key active component of a famous Chinese herbal prescription used for post-stroke treatment in Taiwan; however, little is known about its biological effects and mechanisms of action. Herein, we implemented a murine model of cerebral ischemic/reperfusional injury-related stroke to elucidate medicarpin’s neuroprotective effect. In male ICR mice 24 h after stroke induction, treatment with medicarpin (0.5 and 1.0 mg/kg, i.v.) markedly enhanced the survival rates, improved moving distance and walking area coverage, reduced brain infarction, and preserved the blood-brain barrier, supporting medicarpin’s protective effect on stroke-induced injury. Immunohistochemistry …
In-Silico Efficacy Of Potential Phytomolecules From Ayurvedic Herbs As An Adjuvant Therapy In Management Of Covid-19, Bhanu Kumar, Ankita Misra, Satyendra Pratap Singh, Yogeshwar Vikram Dhar, Poonam Rawat, Debprasad Chattopadhyay, Saroj Kanta Barik, Sharad Srivastava
In-Silico Efficacy Of Potential Phytomolecules From Ayurvedic Herbs As An Adjuvant Therapy In Management Of Covid-19, Bhanu Kumar, Ankita Misra, Satyendra Pratap Singh, Yogeshwar Vikram Dhar, Poonam Rawat, Debprasad Chattopadhyay, Saroj Kanta Barik, Sharad Srivastava
Journal of Food and Drug Analysis
The recent COVID-19 outbreak caused by SARS-CoV-2 virus has sparked a new spectrum of investigations, research and studies in multifarious directions. Efforts are being made around the world for discovery of effective vaccines/drugs against COVID-19. In this context, Ayurveda, an alternative traditional system of medicine in India may work as an adjuvant therapy in compromised patients. We selected 40 herbal leads on the basis of their traditional applications. The phytomolecules from these leads were further screened through in-silico molecular docking against two main targets of SARS-CoV-2 i.e. the spike protein (S; structural protein) and the main protease (MPRO …
Conducting Polymer-Based Sensors For Food And Drug Analysis, Chia-Hsin Lin, Jia-Hui Lin, Chien-Fu Chen, Yoshihiro Ito, Shyh-Chyang Luo
Conducting Polymer-Based Sensors For Food And Drug Analysis, Chia-Hsin Lin, Jia-Hui Lin, Chien-Fu Chen, Yoshihiro Ito, Shyh-Chyang Luo
Journal of Food and Drug Analysis
Conducting polymers (CPs) are a category of polymeric materials with conjugated main chains. The characteristic electrical and optical properties of CPs can be fine-tuned through controlling the doping states of CPs. Because of their long-term stability in water, CPs have been demonstrated as electroactive biointerfaces and electrode materials especially in aqueous environments. Serving as multifunctional interfaces and organic electrodes for the integration bioelectronics and devices, CPs have been studied and applied in various biological applications. This paper provides a review of conducting polymer–based electrochemical sensors, particularly those used in biological fields. General conducting polymers and derivatives and their main electrochemical …
Recent Developments In Sensing Of Oversulfated Chondroitin Sulfate In Heparin. A Review ., Manivannan Madhu, Wei-Lung Tseng
Recent Developments In Sensing Of Oversulfated Chondroitin Sulfate In Heparin. A Review ., Manivannan Madhu, Wei-Lung Tseng
Journal of Food and Drug Analysis
Oversulfated chondroitin sulfate (OSCS), a non-natural sulfated glycosaminoglycan, recognizes as a significant containment in the pharmaceutical heparin, and it could trigger adverse reactions. Chromatography-, electrophoresis-, electrochemistry-, and spectroscopy-related techniques are currently available for accurate and precise analysis of a trace amount of OSCS in heparin. Recently, emerging studies focus on developing colorimetric and fluorescent probes to monitor OSCS containments in heparin. Therefore, this current review aims to describe the sensing principle and procedure of the reported probes that are sensitive and selective toward OSCS in heparin without the interferences of other sulfated glycosaminoglycans. The reported OSCS-specific probes are comprehensively discussed …
Front Matter, Editors
Exile Talks To Reginald Mcknight, Paul Durica, Alison Stine
Exile Talks To Reginald Mcknight, Paul Durica, Alison Stine
Exile
No abstract provided.
Roles We Play (Artwork), John Novak
Passages To The Self (Artwork), Kira Becker
Untitled (Photograph), Kris Lewis
Untitled (Photograph), Camille Gammon-Hittelman
Untitled (Artwork), Erin King
Untitled (Artwork), John Novak
Self-Portrait (Artwork), Cori Barto
Phantom, John Novak
Artichoke, Colin Bossen
Salt, Alison Stine
Shift Change, Angel Lemke
I Could Be Sylvia Plath, Erin Malone
Aloe Vera, Bekah Taylor
The Wig, Alison Stine
Velcro, Danielle Burhop
The Law Of Falling Bodies, Colin Bossen
Summit, Bekah Taylor
Left, Lyn Tramonte