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https://www.readbyqxmd.com/read/29457974/a-multi-omics-analysis-of-glycine-max-leaves-reveals-alteration-in-flavonoid-and-isoflavonoid-metabolism-upon-ethylene-and-abscisic-acid-treatment
#1
Ravi Gupta, Cheol Woo Min, Katharina Kramer, Ganesh Kumar Agrawal, Randeep Rakwal, Ki-Hun Park, Yiming Wang, Iris Finkemeier, Sun Tae Kim
Phytohormones are central to the plant growth and development. Despite the advancement in our knowledge of hormone signaling, downstream targets and their interactions upon hormones action remain largely fragmented, especially at the protein and metabolite levels. With an aim to get new insight into the effects of two hormones, ethylene (ET) and abscisic acid (ABA), this study utilizes an integrated proteomics and metabolomics approach to investigate their individual and combined (ABA+ET) signaling in soybean leaves...
February 19, 2018: Proteomics
https://www.readbyqxmd.com/read/29456113/design-synthesis-and-evaluation-of-the-antiproliferative-activity-of-hydantoin-derived-antiandrogen-genistein-conjugates
#2
Alex George, Idris Raji, Bekir Cinar, Omer Kucuk, Adegboyega K Oyelere
Androgen receptor (AR) signaling is vital to the viability of all forms of prostate cancer (PCa). With the goal of investigating the effect of simultaneous inhibition and depletion of AR on viability of PCa cells, we designed, synthesized and characterized the bioactivities of bifunctional agents which incorporate the independent cancer killing properties of an antiandrogen and genistein, and the AR downregulation effect of genistein within a single molecular template. We observed that a representative conjugate, 9b, is much more cytotoxic to both LNCaP and DU145 cells relative to the antiandrogen and genistein building blocks as single agents or their combination...
February 15, 2018: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/29448974/phyto-oestrogens-affect-fertilisation-and-embryo-development-in-vitro-in-sheep
#3
Anna Aryani Amir, Jennifer M Kelly, David O Kleemann, Zoey Durmic, Dominique Blache, Graeme B Martin
Phyto-oestrogens such as isoflavones are natural compounds that can profoundly affect reproductive function. In the present study, we tested whether including isoflavone compounds (genistein, biochanin A, formononetin) in the maturation medium would affect the outcomes for ovine oocytes in vitro. Each isoflavone compound was evaluated at five concentrations (0, 2.5, 5, 10, 25µgmL-1) and the entire protocol was repeated four times. Cumulus-oocyte complexes were randomly allocated to the treatments, then fertilised and cultured in vitro...
February 16, 2018: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/29444415/bace1-inhibition-by-genistein-biological-evaluation-kinetic-analysis-and-molecular-docking-simulation
#4
Kumju Youn, Ji-Hyun Park, Seonah Lee, Seungeun Lee, Jinhyuk Lee, Eun-Young Yun, Woo-Sik Jeong, Mira Jun
β-site amyloid precursor protein cleaving enzyme 1 (BACE1) plays a role in generating amyloid β (Aβ), thus playing a major part early in the pathogenesis of Alzheimer's disease (AD). BACE1 has emerged as a crucial therapeutic target for decreasing the Aβ concentration in the AD brain. To explore natural BACE1 inhibitors, the present study concentrated on isoflavones, including genistein, formononetin, glycitein, daidzein, and puerarin. In this study, in vitro anti-AD activities were assessed using BACE1 inhibition assays, as well as enzyme kinetic predictions...
February 14, 2018: Journal of Medicinal Food
https://www.readbyqxmd.com/read/29444128/molecular-action-of-isoflavone-genistein-in-the-human-epithelial-cell-line-hacat
#5
Elwira Smolińska, Marta Moskot, Joanna Jakóbkiewicz-Banecka, Grzegorz Węgrzyn, Bogdan Banecki, Aneta Szczerkowska-Dobosz, Dorota Purzycka-Bohdan, Magdalena Gabig-Cimińska
Due to its strong proliferation-reducing effects on keratinocytes, and also anti-inflammatory properties, the isoflavone genistein has already been proposed as a possible antipsoriatic compound. As there is still no detailed information on this topic, we examined the effects of genistein by using an in vitro model of both, normal and "psoriasis-like" keratinocytes at this stage of our work exhaustively testing the selected flavonoid in a mono-treated experimental design. Gene expression studies revealed transcriptional changes that confirms known disease-associated pathways and highlights many psoriasis-related genes...
2018: PloS One
https://www.readbyqxmd.com/read/29435951/correction-of-huntington-s-disease-phenotype-by-genistein-induced-autophagy-in-the-cellular-model
#6
Karolina Pierzynowska, Lidia Gaffke, Aleksandra Hać, Jagoda Mantej, Natalia Niedziałek, Joanna Brokowska, Grzegorz Węgrzyn
Huntington's disease (HD) is a monogenic disorder, caused by mutations in the HTT gene which result in expansion of CAG triplets. The product of the mutated gene is misfolded huntingtin protein that forms aggregates leading to impairment of neuronal function, neurodegeneration, motor abnormalities and cognitive deficits. No effective cure is currently available for HD. Here we studied effects of genistein (trihydroxyisoflavone) on a HD cellular model consisting of HEK-293 cells transfected with a plasmid bearing mutated HTT gene...
February 12, 2018: Neuromolecular Medicine
https://www.readbyqxmd.com/read/29434697/genistein-inhibits-the-s-phase-kinase-associated-protein-2-expression-in-breast-cancer-cells
#7
Dengfeng Ye, Zhian Li, Chunshou Wei
Breast cancer is one of the most lethal cancers affecting women worldwide and was estimated to account for ~30% of all new cancer diagnoses in women. Although available evidence has proved the tumor suppressor role of genistein in cancer, the underling mechanisms have remained to be fully elucidated. S-phase kinase-associated protein 2 (Skp2) has been revealed to critically enhance the pathogenesis of multiple human cancers. The present study determined whether genistein exerts its anti-tumor function by suppressing Skp2 in breast cancer cells...
January 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29433671/phytochemical-induced-reactive-oxygen-species-and-endoplasmic-reticulum-stress-mediated-apoptosis-and-differentiation-in-malignant-melanoma-cells
#8
Jae-Rim Heo, Geum-A Lee, Gyu-Sik Kim, Kyung-A Hwang, Kyung-Chul Choi
BACKGROUND: Phytochemicals are derived from plants, vegetables and daily products and exert chemopreventive effects. Malignant melanoma is highly metastatic, and melanoma patients can develop chemotherapeutic resistance against conventional melanoma therapies. METHODS: In the present study, we investigated the anti-cancer effect of the phytochemicals kaempferol (Kaem), genistein (Gen), and 3'3-diindolylmethane (DIM) on melanoma cell viability. We also evaluated the altered expression of cell cycle-related genes...
January 15, 2018: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/29433670/genistein-induced-anticancer-effects-on-pancreatic-cancer-cell-lines-involves-mitochondrial-apoptosis-g-0-g-1-cell-cycle-arrest-and-regulation-of-stat3-signalling-pathway
#9
Yi-Liang Bi, Min Min, Wei Shen, Yan Liu
BACKGROUND: Genistein is a natural flavonoid that has been reported to exhibit anticancer effects against different types of cancers which include, but are not limited to, breast and oral squamous cell carcinoma. PURPOSE: The present study was designed to evaluate the anticancer effects of the natural flavonoid genistein against pancreatic cancer cell lines and to explore the underlying mechanism. METHODS: Antiproliferative activity was investigated by MTT assay...
January 15, 2018: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/29432676/genistein-a-dual-inhibitor-of-both-a%C3%AE-and-hiapp-peptides
#10
Baiping Ren, Yonglan Liu, Yanxian Zhang, Yongqing Cai, Xiong Gong, Yung Chang, Lijian Xu, Jie Zheng
Abnormal misfolding and aggregation of amyloid peptides into amyloid fibrils are a common and critical pathological event in many neurodegenerative diseases. Most of inhibitors or drugs have been developed to prevent amyloid aggregation of a specific peptide, exhibiting sequence-dependent inhibition mechanisms. It is more challenging to develop or discover inhibitors capable of preventing the aggregation of two or more different amyloid peptides. Genistein, a major phytoestrogen in soybean, has been widely used as anti-inflammation and cerebrovascular drugs due to their anti-oxidation and anti-acetylcholinesterase effects...
February 12, 2018: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/29426849/early-life-exposure-to-ethinylestradiol-enhances-subsequent-responses-to-environmental-estrogens-measured-in-a-novel-transgenic-zebrafish
#11
Jon M Green, Anke Lange, Aaron Scott, Maciej Trznadel, Htoo Aung Wai, Aya Takesono, A Ross Brown, Stewart F Owen, Tetsuhiro Kudoh, Charles R Tyler
Estrogen plays fundamental roles in a range of developmental processes and exposure to estrogen mimicking chemicals has been associated with various adverse health effects in both wildlife and human populations. Estrogenic chemicals are found commonly as mixtures in the environment and can have additive effects, however risk analysis is typically conducted for single-chemicals with little, or no, consideration given for an animal's exposure history. Here we developed a transgenic zebrafish with a photoconvertable fluorophore (Kaede, green to red on UV light exposure) in a skin pigment-free mutant element (ERE)-Kaede-Casper model and applied it to quantify tissue-specific fluorescence biosensor responses for combinations of estrogen exposures during early life using fluorescence microscopy and image analysis...
February 9, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29425740/comparison-of-flavonoids-and-isoflavonoids-to-inhibit-rat-and-human-11%C3%AE-hydroxysteroid-dehydrogenase-1-and-2
#12
Qiqi Zhu, Fei Ge, Yaoyao Dong, Wei Sun, Zhe Wang, Yuanyuan Shan, Ruijie Chen, Jianliang Sun, Ren-Shan Ge
Many flavonoids and isoflavonoids have anti-diabetic effects in animal models. However, the mechanisms that are involved are generally unclear. Since 11β-hydroxysteroid dehydrogenases (HSD11Bs) play important roles in diabetes, we hypothesize that flavonoids and isoflavonoids may affect diabetes by targeting two isoforms of HSD11B differently. The inhibitory effects of flavonoids (apigenin and quercetin) and isoflavonoids [genistein and (±) equol] on rat and human HSD11B1 and HSD11B2 were analyzed. The potencies of inhibition on human HSD11B1 reductase was in the order of apigenin > quercetin > genistein > (±) equol, with IC50 values of 2...
February 6, 2018: Steroids
https://www.readbyqxmd.com/read/29415465/modulation-of-telomerase-activity-in-cancer-cells-by-dietary-compounds-a-review
#13
REVIEW
Takahiro Eitsuka, Kiyotaka Nakagawa, Shunji Kato, Junya Ito, Yurika Otoki, Soo Takasu, Naoki Shimizu, Takumi Takahashi, Teruo Miyazawa
Telomerase is expressed in ~90% of human cancer cell lines and tumor specimens, whereas its enzymatic activity is not detectable in most human somatic cells, suggesting that telomerase represents a highly attractive target for selective cancer treatment. Accordingly, various classes of telomerase inhibitors have been screened and developed in recent years. We and other researchers have successfully found that some dietary compounds can modulate telomerase activity in cancer cells. Telomerase inhibitors derived from food are subdivided into two groups: one group directly blocks the enzymatic activity of telomerase (e...
February 6, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29408209/the-effects-of-the-botantical-estrogen-isoliquiritigenin-on-delayed-spatial-alternation
#14
Payel Kundu, Steven Neese, Suren Bandara, Supida Monaikul, William G Helferich, Daniel R Doerge, Ikhlas A Khan, Susan Schantz
Age-related declines in cognitive function can impair working memory, reduce speed of processing, and alter attentional resources. In particular, menopausal women may show an acceleration in the rate of cognitive decline as well as an increased vulnerability to brain diseases as estrogens may play a neuroprotective and neurotrophic role in the brain. To treat menopausal symptoms, many women turn to botanical estrogens that are promoted as a safe and natural alternative to traditional hormone replacement therapy...
February 2, 2018: Neurotoxicology and Teratology
https://www.readbyqxmd.com/read/29407932/effects-of-fermentation-on-sds-page-patterns-total-peptide-isoflavone-contents-and-antioxidant-activity-of-freeze-thawed-tofu-fermented-with-bacillus-subtilis
#15
Min-Kyoung Lee, Jin-Kyung Kim, Sook-Young Lee
To develop a new healthy functional tofu product, the pH, total cell number, SDS-PAGE patterns, contents of reducing sugar, peptide, isoflavones, antioxidant activity and digestibility of freeze-thawed tofu, fermented with Bacillus subtilis for various time periods, were investigated. In SDS-PAGE patterns, the band intensities of 7S and 11S globulins were slightly decreased and new protein bands of lower molecular weight appeared by fermentation for 12 h. After 18 h, the bands of 7S globulin and the acidic subunit of 11S globulin had almost entirely disappeared and the basic subunit band of 11S globulin was fainter...
May 30, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29389615/soybean-soluble-polysaccharide-enhances-absorption-of-soybean-genistein-in-mice
#16
Yalong Lu, Wenfeng Li, Xingbin Yang
This study was designed to probe the promoting effects of soybean soluble polysaccharide (SSPS) on bioavailability of genistein in mice and the underlying molecular mechanism. Male Kunming mice (n=8) were administered intragastrically with either saline, SSPS (5mg/kgbw), genistein (100mg/kgbw), or SSPS (5 or 50mg/kgbw) together with genistein (100mg/kgbw) for consecutive 28days. UPLC-qTOF/MS analysis showed that co-administration of SSPS and genistein in mice caused significant elevation in the urinary levels of genistein and its metabolites (p<0...
January 2018: Food Research International
https://www.readbyqxmd.com/read/29384322/the-effects-of-green-kiwifruit-combined-with-isoflavones-on-equol-production-bone-turnover-and-gut-microflora-in-healthy-postmenopausal-women
#17
Marlena C Kruger, Catherine Middlemiss, Shinichi Katsumata, Yuko Tousen, Yoshiko Ishimi
BACKGROUND AND OBJECTIVES: Isoflavone (daidzein and genistein) interventions in postmenopausal women have produced inconsistent skeletal benefits, partly due to population heterogeneity in daidzein metabolism to equol by enteric bacteria. This study assessed changes in microflora and bone turnover in response to isoflavone and ki-wifruit supplementation in New Zealand postmenopausal women. METHODS AND STUDY DESIGN: Healthy women 1-10 years post-menopause were randomly allocated to group A (n=16) or B (n=17) for a 16-week crossover trial...
2018: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29374955/genistein-suppressing-the-ros-induced-hypersensitivity-of-rat-vagal-lung-c-fiber-afferents-through-an-er%C3%AE-mediated-mechanism
#18
Chou-Ming Yeh, Yu-Jung Lin, Tien-Huan Hsu, Ting Ruan
Reactive oxygen species may induce hypersensitivity of vagal lung C-fibers (VLCFs) through the interaction of TRPA1 and P2X receptors. Genistein is a soy-derived isoflavone that exerts antioxidant effects by binding to estrogen receptors (ERs), ERα and ERβ. We investigated whether ER activation by genistein can suppress H₂O₂-mediated VLCF hypersensitivity and identified the types of ERs involved. Results revealed that subcutaneous injection of genistein or PPT (a selective ERα agonist) can attenuate H₂O₂-induced VLCF hypersensitivity...
January 29, 2018: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/29362872/zornia-latifolia-a-smart-drug-being-adulterated-by-stylosanthes-guianensis
#19
L Cornara, A P Fortuna-Perez, I Bruni, A Salis, G Damonte, B Borghesi, M Clericuzio
Dried herbal preparations, based on "Zornia latifolia," are commonly sold on web, mainly for their supposed hallucinogenic properties. In this work, we demonstrate that these commercial products contain a different Fabacea, i.e., Stylosanthes guianensis, a cheaper plant, widely cultivated in tropical regions as a fodder legume. We were provided with plant samples of true Zornia latifolia from Brazil, and carried out a thorough comparison of the two species. The assignment of commercial samples was performed by means of micro-morphological analysis, DNA barcoding, and partial phytochemical investigation...
January 23, 2018: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/29362606/genistein-ameliorates-cyclophosphamide-induced-hepatotoxicity-by-modulation-of-oxidative-stress-and-inflammatory-mediators
#20
Dina F Mansour, Dalia O Saleh, Rasha E Mostafa
AIM: The present study investigated the protective effect of the phytoestrogen, genistein (GEN), against (CP)-induced acute hepatotoxicity in rats. MATERIAL AND METHODS: Male adult rats were randomly assigned into five groups. Normal control group received the vehicles; CP group received a single dose of CP (200 mg/kg, i.p). The other three groups received subcutaneous GEN at doses of 0.5, 1 and 2 mg/kg/day, respectively, for 15 consecutive days prior CP injection...
December 15, 2017: Open Access Macedonian Journal of Medical Sciences
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