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  1. Article ; Online: (+)-/(-)-Rutabenzofuran A and (+)-/(-)- Rutabenzofuran B: Two unprecedented pairs of Z/E isomeric benzofuran enantiomers from the aerial part of Ruta graveolens L.

    Liu, Yanyang / Peng, Jing / Huang, Ling / Li, Bichen / Ge, Chengyu / Liu, Shao / Jiang, Yueping

    Phytochemistry

    2023  Volume 210, Page(s) 113677

    Abstract: Two pairs of Z/E isomeric benzofuran enantiomers possessing unprecedented carbon skeletons ... from the water extract of the aerial part of Ruta graveolens L. Their structures were determined by extensive ...

    Abstract Two pairs of Z/E isomeric benzofuran enantiomers possessing unprecedented carbon skeletons featuring ring cleavage and addition reactions in the α-pyrone ring of furocoumarin, named rutabenzofuran A [(+)-1 and (-)-1], and rutabenzofuran B [(+)-2 and (-)-2], respectively, were isolated as minor compounds from the water extract of the aerial part of Ruta graveolens L. Their structures were determined by extensive spectroscopic data analysis. The absolute configurations were assigned by comparing the optical rotation with previous research and the experimental circular dichroism (CD) spectra with the calculated electronic CD (ECD) spectra. (-)-1, (+)-2, and (-)-2 were evaluated for antibacterial, anticoagulant, anticancer, and acetylcholinesterase (AChE) inhibitory activities. No anticancer or anticoagulant activities were observed, yet (-)-2 exhibited weak antibacterial activity against Salmonella enterica subsp. Enterica. At the same time, (-)-1, (+)-2, and (-)-2 displayed weak inhibitory activity on AChE.
    MeSH term(s) Ruta/chemistry ; Acetylcholinesterase ; Plant Components, Aerial/chemistry ; Benzofurans/pharmacology ; Anti-Bacterial Agents/pharmacology ; Anti-Bacterial Agents/chemistry
    Chemical Substances Acetylcholinesterase (EC 3.1.1.7) ; Benzofurans ; Anti-Bacterial Agents
    Language English
    Publishing date 2023-04-12
    Publishing country England
    Document type Journal Article
    ZDB-ID 208884-8
    ISSN 1873-3700 ; 0031-9422
    ISSN (online) 1873-3700
    ISSN 0031-9422
    DOI 10.1016/j.phytochem.2023.113677
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Systemic depletion of L-cyst(e)ine with cyst(e)inase increases reactive oxygen species and suppresses tumor growth.

    Cramer, Shira L / Saha, Achinto / Liu, Jinyun / Tadi, Surendar / Tiziani, Stefano / Yan, Wupeng / Triplett, Kendra / Lamb, Candice / Alters, Susan E / Rowlinson, Scott / Zhang, Yan Jessie / Keating, Michael J / Huang, Peng / DiGiovanni, John / Georgiou, George / Stone, Everett

    Nature medicine

    2016  Volume 23, Issue 1, Page(s) 120–127

    Abstract: ... ROS, endogenous L-cysteine (L-Cys) production is insufficient for GSH synthesis. This necessitates ... uptake of L-Cys that is predominantly in its disulfide form, L-cystine (CSSC), via the xCT(-) transporter ... We show that administration of an engineered and pharmacologically optimized human cyst(e)inase enzyme ...

    Abstract Cancer cells experience higher oxidative stress from reactive oxygen species (ROS) than do non-malignant cells because of genetic alterations and abnormal growth; as a result, maintenance of the antioxidant glutathione (GSH) is essential for their survival and proliferation. Under conditions of elevated ROS, endogenous L-cysteine (L-Cys) production is insufficient for GSH synthesis. This necessitates uptake of L-Cys that is predominantly in its disulfide form, L-cystine (CSSC), via the xCT(-) transporter. We show that administration of an engineered and pharmacologically optimized human cyst(e)inase enzyme mediates sustained depletion of the extracellular L-Cys and CSSC pool in mice and non-human primates. Treatment with this enzyme selectively causes cell cycle arrest and death in cancer cells due to depletion of intracellular GSH and ensuing elevated ROS; yet this treatment results in no apparent toxicities in mice even after months of continuous treatment. Cyst(e)inase suppressed the growth of prostate carcinoma allografts, reduced tumor growth in both prostate and breast cancer xenografts and doubled the median survival time of TCL1-Tg:p53
    MeSH term(s) Animals ; Blotting, Western ; Breast Neoplasms/metabolism ; Cell Line, Tumor ; Cystathionine gamma-Lyase/pharmacology ; Cysteine/drug effects ; Cysteine/metabolism ; Cystine/drug effects ; Cystine/metabolism ; Female ; Glutathione/metabolism ; Humans ; Leukemia, Lymphocytic, Chronic, B-Cell/genetics ; Leukemia, Lymphocytic, Chronic, B-Cell/metabolism ; Macaca fascicularis ; Male ; Mice ; Mice, Knockout ; Mice, Transgenic ; Neoplasm Transplantation ; Oxidative Stress ; Polyethylene Glycols/pharmacology ; Prostatic Neoplasms/metabolism ; Reactive Oxygen Species/metabolism ; Tumor Suppressor Protein p53/genetics
    Chemical Substances Reactive Oxygen Species ; Tumor Suppressor Protein p53 ; Polyethylene Glycols (3WJQ0SDW1A) ; Cystine (48TCX9A1VT) ; Cystathionine gamma-Lyase (EC 4.4.1.1) ; cyst(e)inase protein, human (EC 4.4.1.1) ; Glutathione (GAN16C9B8O) ; Cysteine (K848JZ4886)
    Language English
    Publishing date 2016-11-21
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1220066-9
    ISSN 1546-170X ; 1078-8956
    ISSN (online) 1546-170X
    ISSN 1078-8956
    DOI 10.1038/nm.4232
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: (+)-/(−)-Rutabenzofuran a and (+)-/(−)- Rutabenzofuran b: Two unprecedented pairs of Z/E isomeric benzofuran enantiomers from the aerial part of Ruta graveolens L

    Liu, Yanyang / Peng, Jing / Huang, Ling / Li, Bichen / Ge, Chengyu / Liu, Shao / Jiang, Yueping

    Phytochemistry. 2023 Apr. 12, p.113677-

    2023  , Page(s) 113677–

    Abstract: Two pairs of Z/E isomeric benzofuran enantiomers possessing unprecedented carbon skeletons ... from the water extract of the aerial part of Ruta graveolens L. Their structures were determined by extensive ...

    Abstract Two pairs of Z/E isomeric benzofuran enantiomers possessing unprecedented carbon skeletons featuring ring cleavage and addition reactions in the α-pyrone ring of furocoumarin, named rutabenzofuran A [(+)-1 and (−)-1], and rutabenzofuran B [(+)-2 and (−)-2], respectively, were isolated as minor compounds from the water extract of the aerial part of Ruta graveolens L. Their structures were determined by extensive spectroscopic data analysis. The absolute configurations were assigned by comparing the optical rotation with previous research and the experimental circular dichroism (CD) spectra with the calculated electronic CD (ECD) spectra. (−)-1, (+)-2, and (−)-2 were evaluated for antibacterial, anticoagulant, anticancer, and acetylcholinesterase (AChE) inhibitory activities. No anticancer or anticoagulant activities were observed, yet (−)-2 exhibited weak antibacterial activity against Salmonella enterica subsp. Enterica. At the same time, (−)-1, (+)-2, and (−)-2 displayed weak inhibitory activity on AChE.
    Keywords Ruta graveolens ; acetylcholinesterase ; aerial parts ; antibacterial properties ; anticoagulants ; carbon ; circular dichroism spectroscopy ; enantiomers ; plant biochemistry ; spectral analysis ; Ruta graveolens L. ; Enantiomer ; Z/E isomeric ; Rutabenzofuran a and rutabenzofuran B ; Antibacterial activity ; Acetylcholinesterase inhibitory activity
    Language English
    Dates of publication 2023-0412
    Publishing place Elsevier Ltd
    Document type Article ; Online
    Note Pre-press version
    ZDB-ID 208884-8
    ISSN 1873-3700 ; 0031-9422
    ISSN (online) 1873-3700
    ISSN 0031-9422
    DOI 10.1016/j.phytochem.2023.113677
    Database NAL-Catalogue (AGRICOLA)

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  4. Article: Supplementation of L-Arginine, L-Glutamine, Vitamin C, Vitamin E, Folic Acid, and Green Tea Extract Enhances Serum Nitric Oxide Content and Antifatigue Activity in Mice.

    Chen, Yi-Ming / Li, Huashuai / Chiu, Yen-Shuo / Huang, Chi-Chang / Chen, Wen-Chyuan

    Evidence-based complementary and alternative medicine : eCAM

    2020  Volume 2020, Page(s) 8312647

    Abstract: ... comprising L-arginine, L-glutamine, vitamin C, vitamin E, folic acid, and green tea extract (LVFG ...

    Abstract It has been reported that abundant nitric oxide content in endothelial cells can increase exercise performance. The purpose of this study was to evaluate the potential beneficial effects of a combined extract comprising L-arginine, L-glutamine, vitamin C, vitamin E, folic acid, and green tea extract (LVFG) on nitric oxide content to decrease exercise fatigue. Male ICR (Institute of Cancer Research) mice were randomly divided into 4 groups and orally administered LVFG for 4 weeks. The 4-week LVFG supplementation significantly increased serum nitric oxide content in the LVFG-1X and LVFG-2X groups. Antifatigue activity and exercise performance were evaluated using forelimb grip strength, exhaustive swimming test, and levels of serum lactate, ammonia, glucose, and creatine kinase (CK) after an acute swimming exercise. LVFG supplementation dose-dependently improved exercise performance and nitric oxide content, and it dose-dependently decreased serum ammonia and CK activity after exhaustive swimming test. LVFG's antifatigue properties appear to manifest by preserving energy storage (as blood glucose) and increasing nitric oxide content. Taken together, our results show that LVFG could have the potential for alleviating physical fatigue due to its pharmacological effect of increasing serum nitric oxide content.
    Language English
    Publishing date 2020-04-11
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2171158-6
    ISSN 1741-4288 ; 1741-427X
    ISSN (online) 1741-4288
    ISSN 1741-427X
    DOI 10.1155/2020/8312647
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Search for the rare decay K(L)-->pi(0)e(+)e(-).

    Alavi-Harati, A / Alexopoulos, T / Arenton, M / Barbosa, R F / Barker, A R / Barrio, M / Bellantoni, L / Bellavance, A / Blucher, E / Bock, G J / Bown, C / Bright, S / Cheu, E / Coleman, R / Corcoran, M D / Cox, B / Erwin, A R / Escobar, C O / Ford, R /
    Glazov, A / Golossanov, A / Gomes, R A / Gouffon, P / Graham, J / Hamm, J / Hanagaki, K / Hsiung, Y B / Huang, H / Jejer, V / Jensen, D A / Kessler, R / Kobrak, H G E / Kotera, K / LaDue, J / Lai, N / Ledovskoy, A / McBride, P L / Monnier, E / Nelson, K S / Nguyen, H / Ping, H / Prasad, V / Qi, X R / Quinn, B / Ramberg, E J / Ray, R E / Ronquest, M / Santos, E / Senyo, K / Shanahan, P / Shields, J / Slater, W / Smith, D E / Solomey, N / Swallow, E C / Taegar, S A / Tesarek, R J / Toale, P A / Tschirhart, R / Velissaris, C / Wah, Y W / Wang, J / White, H B / Whitmore, J / Wilking, M / Winstein, B / Winston, R / Worcester, E T / Yamanaka, T / Zukanovich, R F

    Physical review letters

    2004  Volume 93, Issue 2, Page(s) 21805

    Abstract: The KTeV/E799 experiment at Fermilab has searched for the rare kaon decay K(L)-->pi(0)e(+)e ... result based on the data set taken in 1997 yields the final KTeV result: BR(K(L)-->pi(0)e(+)e(-))<2.8x10 ... 10) at 90% C.L. ...

    Abstract The KTeV/E799 experiment at Fermilab has searched for the rare kaon decay K(L)-->pi(0)e(+)e(-). This mode is expected to have a significant CP violating component. The measurement of its branching ratio could support the standard model or could indicate the existence of new physics. This Letter reports new results from the 1999-2000 data set. One event is observed with an expected background at 0.99+/-0.35 events. We set a limit on the branching ratio of 3.5x10(-10) at the 90% confidence level. Combining with the previous result based on the data set taken in 1997 yields the final KTeV result: BR(K(L)-->pi(0)e(+)e(-))<2.8x10(-10) at 90% C.L.
    Language English
    Publishing date 2004-07-09
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.93.021805
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Conference proceedings: Einfluss der Typ-2-Diabetesdauer auf die Wirkung von iGlarLixi gegenüber Insulin glargin 100 E / ml bei einer basalunterstützten oralen Therapie (BOT): Eine Subanalyse der LixiLan-L-Studie

    Seufert, J / Blonde, L / Berard, Lori / Saremi, A / Huang, Y / Aroda, V / Raccah, D

    Diabetologie und Stoffwechsel

    2021  Volume 16, Issue S 01

    Event/congress Diabetes Kongress 2021 - 55. Jahrestagung der DDG, Online-Kongress, 2021-05-12
    Language German
    Publishing date 2021-05-01
    Publisher Georg Thieme Verlag KG
    Publishing place Stuttgart ; New York
    Document type Article ; Conference proceedings
    ZDB-ID 2222993-0
    ISSN 1861-9010 ; 1861-9002
    ISSN (online) 1861-9010
    ISSN 1861-9002
    DOI 10.1055/s-0041-1727315
    Database Thieme publisher's database

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  7. Article: R.E.N.A.L. Nephrometry Score: A Preoperative Risk Factor Predicting the Fuhrman Grade of Clear-Cell Renal Carcinoma.

    Chen, Shao-Hao / Wu, Yu-Peng / Li, Xiao-Dong / Lin, Tian / Guo, Qing-Yong / Chen, Ye-Hui / Huang, Jin-Bei / Wei, Yong / Xue, Xue-Yi / Zheng, Qing-Shui / Xu, Ning

    Journal of Cancer

    2017  Volume 8, Issue 18, Page(s) 3725–3732

    Abstract: Objective: ...

    Abstract Objective:
    Language English
    Publishing date 2017-10-17
    Publishing country Australia
    Document type Journal Article
    ZDB-ID 2573318-7
    ISSN 1837-9664
    ISSN 1837-9664
    DOI 10.7150/jca.21189
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Supplementation of L-Arginine, L-Glutamine, Vitamin C, Vitamin E, Folic Acid, and Green Tea Extract Enhances Serum Nitric Oxide Content and Antifatigue Activity in Mice

    Yi-Ming Chen / Huashuai Li / Yen-Shuo Chiu / Chi-Chang Huang / Wen-Chyuan Chen

    Evidence-Based Complementary and Alternative Medicine, Vol

    2020  Volume 2020

    Abstract: ... comprising L-arginine, L-glutamine, vitamin C, vitamin E, folic acid, and green tea extract (LVFG ...

    Abstract It has been reported that abundant nitric oxide content in endothelial cells can increase exercise performance. The purpose of this study was to evaluate the potential beneficial effects of a combined extract comprising L-arginine, L-glutamine, vitamin C, vitamin E, folic acid, and green tea extract (LVFG) on nitric oxide content to decrease exercise fatigue. Male ICR (Institute of Cancer Research) mice were randomly divided into 4 groups and orally administered LVFG for 4 weeks. The 4-week LVFG supplementation significantly increased serum nitric oxide content in the LVFG-1X and LVFG-2X groups. Antifatigue activity and exercise performance were evaluated using forelimb grip strength, exhaustive swimming test, and levels of serum lactate, ammonia, glucose, and creatine kinase (CK) after an acute swimming exercise. LVFG supplementation dose-dependently improved exercise performance and nitric oxide content, and it dose-dependently decreased serum ammonia and CK activity after exhaustive swimming test. LVFG’s antifatigue properties appear to manifest by preserving energy storage (as blood glucose) and increasing nitric oxide content. Taken together, our results show that LVFG could have the potential for alleviating physical fatigue due to its pharmacological effect of increasing serum nitric oxide content.
    Keywords Other systems of medicine ; RZ201-999
    Subject code 796
    Language English
    Publishing date 2020-01-01T00:00:00Z
    Publisher Hindawi Limited
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article: Metabolic engineering of E. coli for the production of O-succinyl-L-homoserine with high yield

    Huang, Jian-Feng / Zhang, Bo / Shen, Zhen-Yang / Liu, Zhi-Qiang / Zheng, Yu-Guo

    3 Biotech. 2018 July, v. 8, no. 7

    2018  

    Abstract: ... of the resulting strain E. coli ∆JIB* TrcmetL was dramatically increased to 7.30 g/L. The feedback regulation was ... O-succinyl-L-homoserine (OSH) is a promising platform chemical for the production of C4 chemicals ... of DL-methionine transporter) were deleted in Escherichia coli W3110 to obtain a strain E. coli ∆JI ...

    Abstract O-succinyl-L-homoserine (OSH) is a promising platform chemical for the production of C4 chemicals with huge market potential which can be produced by fermentation from glucose. To construct a strain capable of producing OSH with high yield, the metJ (encodes transcriptional repressor) and metI (encodes a subunit of DL-methionine transporter) were deleted in Escherichia coli W3110 to obtain a strain E. coli ∆JI. Then, overexpression of metL (encodes bifunctional aspartate kinase/homoserine dehydrogenase II) and inactivation of metB (encodes cystathionine γ-synthase) were implemented in one step, and the OSH titer of the resulting strain E. coli ∆JIB* TrcmetL was dramatically increased to 7.30 g/L. The feedback regulation was further relieved by progressively overexpressing metAfbr (encodes homoserine O-succinyltransferase), yjeH (encodes L-methionine exporter), and thrAfbr (encodes bifunctional aspartate kinase/homoserine dehydrogenase I) to increase the metabolic flux from aspartate to OSH. The 100% rationally designed strain E. coli ∆JIB* TrcmetL/pTrc-metAfbr-Trc-thrAfbr-yjeH produced 9.31 g/L OSH from 20 g/L glucose (0.466 g/g glucose) in batch fermentation, which represents the highest OSH yield from glucose reported to date. The culture profiles of the newly constructed strains were recorded to investigate their productive properties. The effects of L-methionine addition on the fermentation process of the optimal strain were also studied. Our results demonstrate that tuning the expression level of metL, inactivation of metB, and attenuation of feedback resistance of the crucial enzymes in the biosynthetic pathway are the key factors that impact the OSH production in E. coli.
    Keywords Escherichia coli ; aspartate kinase ; aspartic acid ; batch fermentation ; biochemical pathways ; cystathionine ; glucose ; homoserine ; markets ; metabolic engineering ; repressor proteins
    Language English
    Dates of publication 2018-07
    Size p. 310.
    Publishing place Springer Berlin Heidelberg
    Document type Article
    ZDB-ID 2600522-0
    ISSN 2190-5738 ; 2190-572X
    ISSN (online) 2190-5738
    ISSN 2190-572X
    DOI 10.1007/s13205-018-1332-x
    Database NAL-Catalogue (AGRICOLA)

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  10. Article ; Online: Inducement of mitosis delay by cucurbitacin E, a novel tetracyclic triterpene from climbing stem of Cucumis melo L., through GADD45γ in human brain malignant glioma (GBM) 8401 cells.

    Hsu, Y-C / Chen, M-J / Huang, T-Y

    Cell death & disease

    2014  Volume 5, Page(s) e1087

    Abstract: Cucurbitacin E (CuE) is a natural compound previously shown to have anti-feedant, antioxidant and ...

    Abstract Cucurbitacin E (CuE) is a natural compound previously shown to have anti-feedant, antioxidant and antitumor activities as well as a potent chemo-preventive action against cancer. The present study investigates its anti-proliferative property using MTT assay; CuE demonstrated cytotoxic activity against malignant glioma GBM 8401 cells and induced cell cycle G2/M arrest in these cells. CuE-treated cells accumulated in metaphase (CuE 2.5-10 μM) as determined using MPM-2 by flow cytometry. We attempted to characterize the molecular pathways responsible for cytotoxic effects of CuE in GBM 8401 cells. We studied the genome-wide gene expression profile on microarrays and molecular networks by using pathway analysis tools of bioinformatics. The CuE reduced the expression of 558 genes and elevated the levels of 1354 genes, suggesting an existence of the common pathways involved in induction of G2/M arrest. We identified the RB (GADD45β and GADD45γ) and the p53 (GADD45α) signaling pathways as the common pathways, serving as key molecules that regulate cell cycle. Results indicate that CuE produced G2/M arrest as well as the upregulation of GADD45 γ and binding with CDC2. Both effects increased proportionally with the dose of CuE, suggesting that the CuE-induced mitosis delay is regulated by GADD45γ overexpression. Our findings suggest that, in addition to the known effects on cancer prevention, CuE may have antitumor activity in glioma therapy.
    MeSH term(s) Antimitotic Agents/isolation & purification ; Antimitotic Agents/pharmacology ; Antineoplastic Agents, Phytogenic/isolation & purification ; Antineoplastic Agents, Phytogenic/pharmacology ; Apoptosis/drug effects ; Brain Neoplasms/genetics ; Brain Neoplasms/metabolism ; Brain Neoplasms/pathology ; CDC2 Protein Kinase ; Cell Line, Tumor ; Cell Proliferation/drug effects ; Computational Biology ; Cucumis melo/chemistry ; Cyclin B/genetics ; Cyclin B/metabolism ; Cyclin-Dependent Kinases ; Dose-Response Relationship, Drug ; G2 Phase Cell Cycle Checkpoints/drug effects ; Gene Expression Profiling/methods ; Gene Expression Regulation, Neoplastic ; Gene Regulatory Networks ; Humans ; Intracellular Signaling Peptides and Proteins/genetics ; Intracellular Signaling Peptides and Proteins/metabolism ; Mitosis/drug effects ; Neuroblastoma/genetics ; Neuroblastoma/metabolism ; Neuroblastoma/pathology ; Oligonucleotide Array Sequence Analysis ; Phytotherapy ; Plant Stems ; Plants, Medicinal ; Protein Binding ; Signal Transduction/drug effects ; Triterpenes/isolation & purification ; Triterpenes/pharmacology ; Up-Regulation
    Chemical Substances Antimitotic Agents ; Antineoplastic Agents, Phytogenic ; Cyclin B ; GADD45G protein, human ; Intracellular Signaling Peptides and Proteins ; Triterpenes ; CDC2 Protein Kinase (EC 2.7.11.22) ; CDK1 protein, human (EC 2.7.11.22) ; Cyclin-Dependent Kinases (EC 2.7.11.22) ; cucurbitacin E (V8A45XYI21)
    Language English
    Publishing date 2014-02-27
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2541626-1
    ISSN 2041-4889 ; 2041-4889
    ISSN (online) 2041-4889
    ISSN 2041-4889
    DOI 10.1038/cddis.2014.22
    Database MEDical Literature Analysis and Retrieval System OnLINE

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