Luminescence

Publication Title: 
International Journal of Cosmetic Science

The hydroglycolic (HG) extract from 70% propylene glycol (PG) extraction of myrobalan fruits showed the most appreciable antioxidant efficiency towards 1,1-diphenyl-2-picrylhydrazyl (DPPH) in comparison to the extracts from 30, 50, 70 and 100% ethyl alcohol (EA), and 30, 50 and 100% PG . Its total polyphenols were also higher than others. The additional analysis of antioxidant power revealed that this HG extract was able to counteract the induced oxidation caused by hydrogen peroxide (H(2) O(2) ) and 2,2'-azobis(2-amidinopropane) dihydrochloride (AAPH).

Author(s): 
Chulasiri, M.
Wanaswas, P.
Sriaum, D.
Nakamat, S.
Wongkrajang, Y.
Kongsaktrakoon, B.
Phornchirasilp, S.
Songchitsomboon, S.
Leelarungrayub, D.
Publication Title: 
PloS One

BACKGROUND: Glioma, including anaplastic astrocytoma and glioblastoma multiforme (GBM) are among the most commonly diagnosed malignant adult brain tumors. GBM is a highly invasive and angiogenic tumor, resulting in a 12 to 15 months median survival. The treatment of GBM is multimodal and includes surgical resection, followed by adjuvant radio-and chemotherapy. We have previously reported that short-term starvation (STS) enhances the therapeutic index of chemo-treatments by differentially protecting normal cells against and/or sensitizing tumor cells to chemotoxicity.

Author(s): 
Safdie, Fernando
Brandhorst, Sebastian
Wei, Min
Wang, Weijun
Lee, Changhan
Hwang, Saewon
Conti, Peter S.
Chen, Thomas C.
Longo, Valter D.
Publication Title: 
Journal of Zhejiang University. Science. B

Theaflavins (TFs) are the dimers of a couple of epimerized catechins, which are specially formed during black tea fermentation. To explore the differences among four main TF derivatives (theaflavin (TF(1)), theaflavin-3-gallate (TF(2)A), theaflavin-3'-gallate (TF(2)B), and theaflavin-3,3'-digallate (TF(3))) in scavenging reactive oxygen species (ROS) in vitro, their properties of inhibiting superoxide, singlet oxygen, hydrogen peroxide, and the hydroxyl radical, and their effects on hydroxyl radical-induced DNA oxidative damage were systematically analyzed in the present study.

Author(s): 
Wu, Yuan-Yuan
Li, Wei
Xu, Yi
Jin, En-hui
Tu, You-ying
Publication Title: 
Sensors (Basel, Switzerland)

Quorum sensing controls the virulence determinants in most proteobacteria. In this work, the hexane, chloroform and methanol extracts of an Ayurveda spice, namely clove (Syzygium aromaticum), shown anti-quorum sensing activity. Hexane and methanol extracts of clove inhibited the response of C. violaceum CV026 to exogenously supplied N-hexanoylhomoserine lactone, in turn preventing violacein production. Chloroform and methanol extracts of clove significantly reduced bioluminescence production by E. coli [pSB1075] grown in the presence of N-(3-oxododecanoyl)-L-homoserine lactone.

Author(s): 
Krishnan, Thiba
Yin, Wai-Fong
Chan, Kok-Gan
Publication Title: 
Sensors (Basel, Switzerland)

Quorum sensing controls the virulence determinants in most proteobacteria. In this work, the hexane, chloroform and methanol extracts of an Ayurveda spice, namely clove (Syzygium aromaticum), shown anti-quorum sensing activity. Hexane and methanol extracts of clove inhibited the response of C. violaceum CV026 to exogenously supplied N-hexanoylhomoserine lactone, in turn preventing violacein production. Chloroform and methanol extracts of clove significantly reduced bioluminescence production by E. coli [pSB1075] grown in the presence of N-(3-oxododecanoyl)-L-homoserine lactone.

Author(s): 
Krishnan, Thiba
Yin, Wai-Fong
Chan, Kok-Gan
Publication Title: 
Indian Journal of Experimental Biology

In order to create a scientific basis of complementary medicine it is certainly necessary to add a more non-local approach to the molecular substance of orthodox "life-sciences". It should be able to explain strange phenomena like healing by homeopathy or acupuncture. A possible frame concerns oscillatory electromagnetic interactions as regulatory and - in case of disease--deregulatory impulses of the organisms.

Author(s): 
Popp, Fritz-Albert
Publication Title: 
Chemical & Pharmaceutical Bulletin

The fingerprint technique has been studied frequently as a useful strategy for quality of traditional Chinese medicine. A novel potency fingerprint that can quantitatively analyze the antioxidant activity of individual constituent and provide the total antioxidant activities of the samples has been developed by high-performance liquid chromatography coupled with ultraviolet and pyrogallol-luminol chemiluminescence detection (HPLC-diode array detection (DAD)-PLD).

Author(s): 
Chang, Yan-Xu
Yan, Dong-Mei
Chen, Lin-Lin
Ding, Xiao-Ping
Qi, Jin
Kang, Li-Yuan
Zhang, Bo-li
Yu, Bo-Yang
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