Results 101 to 110 of about 21,627 (244)

Theoretical studies of arbutin, glutathione, and sea cucumber extracts as inhibitors of tyrosinase

open access: yesScientific Reports
Tyrosinase is a crucial enzyme targeted for the development of various skin-whitening agents due to its role in regulating key steps in melanin production.
Zheng Zheng   +6 more
doaj   +1 more source

The Neuroprotective Effect of a Waste Byproduct Obtained From Pomegranate (Punica granatum)

open access: yesPhytotherapy Research, EarlyView.
The Effect of a Waste Byproduct Obtained From Pomegranate on Neurodegeneration. ABSTRACT Pomegranate is an exceptional fruit that can have several beneficial effects on human health. The peel of pomegranate, a waste product, should be recovered as it still contains valuable constituents, including phenolic compounds, minerals and fibre. The recovery of
Jessica Maiuolo   +11 more
wiley   +1 more source

Modelling aspects of solid cancer growth [PDF]

open access: yes, 2008
The modelling of cancer provides an enormous mathematical challenge because of its inherent multiscale nature. For example, in vascular tumours, nutrient is transported by the vascular system, which operates on a tissue level.
Maini, P. K.
core   +1 more source

Integrative Bioinformatics, Experimental Validation, and Interpretable Machine Learning Reveal Oxyresveratrol‐Mediated Protection Against Cadmium‐Induced Lung Adenocarcinoma‐Related Transcriptional Dysregulation

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Cadmium (Cd) is a toxic heavy metal strongly implicated in lung adenocarcinoma (LUAD) through mechanisms involving oxidative stress, epigenetic dysregulation, and chronic inflammation. This study aimed to identify Cd‐responsive genes associated with LUAD and to evaluate the protective effects of oxyresveratrol (O‐RES) against Cd‐induced ...
Murat Isıyel, Hamid Ceylan, Yeliz Demir
wiley   +1 more source

Tyrosinase inhibitory and antioxidant activity by bromophenols from the alga Odonthalia corymbifera [PDF]

open access: yes, 2017
In the course of our search for tyrosinase inhibitors and antioxidants, six known bromophenol dimers were purified from methanol extract of the red alga Odonthalia corymbifera. The compounds were identified by comparison with published spectroscopic data.
Islam, Md Reazul   +2 more
core  

Antioxidant and antityrosinase activities of piper maingayi HK. Essential oils [PDF]

open access: yes, 2015
The study was aimed to investigate the chemical components of stem and fruit volatile oils of Piper. maingayi Hk. with their antioxidant and antityrosinase activities.
Ahmad, F., Hashim, N. A., Susanti, D.
core   +2 more sources

Depth‐dependent mechanisms regulate accumulation of plant‐ and microbial‐derived residues under long‐term nitrogen addition in a semiarid grassland

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Plant‐ and microbial‐derived residues constitute the primary sources of soil organic carbon (SOC) in grassland ecosystems. However, their differential responses to chronic nitrogen (N) enrichment and the depth‐dependent mechanisms governing their accumulation remain ...
Xiaobo Yuan   +19 more
wiley   +1 more source

Mechanism Underlying the Reversal of Drug Resistance in P-Glycoprotein-Expressing Leukemia Cells by Pinoresinol and the Study of a Derivative [PDF]

open access: yes, 2017
P-glycoprotein (P-gp) is a membrane protein associated with multidrug resistance (MDR) due to its key role in mediating the traffic of chemotherapeutic drugs outside cancer cells, leading to a cellular response that hinders efforts toward successful ...
Carpinella, Maria Cecilia   +10 more
core   +2 more sources

Therapeutic potential of natural products in cancer immunotherapy: Advances and challenges

open access: yesBritish Journal of Pharmacology, EarlyView.
This review systematically outlines the mechanisms underlying tumour immunotherapy resistance and elucidates the role of natural products in enhancing therapeutic efficacy as immunomodulatory adjuvants. Abstract Immunotherapy has emerged as a clinically pivotal approach in cancer treatment, but its application remains limited to a small subset of ...
Rao Hu   +6 more
wiley   +1 more source

The synthesis of triazole derivatives on mushroom tyrosinase and their mechanisms [PDF]

open access: yes, 2016
酪氨酸酶广泛的存在于各生物体内,其产物多巴醌能与氨基酸或者蛋白质聚合黑色素,该酶是合成黑色素的关键酶。然而黑色素的过量合成会引起雀斑、黄褐斑、老年斑等色素沉积性皮肤病,此外研究表明,酪氨酸酶还与帕金森综合症、昆虫蜕皮、果蔬褐变有密切关系。因此,控制酪氨酸酶活性的研究在农业、制药业及化妆品行业有重要开发价值。 4-氨基-3-肼基-5-巯基-1,2,4-三唑(AHMT)为五元氮杂环,是酰胺键的电子等排物,也具有潜在的配位键,而苯甲醛类衍生物为酪氨酸酶底物的类似物,可以竞争性抑制酶失活性 ...
喻枫
core  

Home - About - Disclaimer - Privacy