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https://www.readbyqxmd.com/read/29783635/glycosaminoglycans-from-a-sea-snake-lapemis-curtus-extraction-structural-characterization-and-antioxidant-activity
#1
Mingyue Bai, Wenwei Han, Xia Zhao, Qingchi Wang, Yanyun Gao, Shiming Deng
Sea snakes have wide application prospects in medicine, health food and other fields. Several novel polysaccharides were successfully obtained from the skin and the meat of a sea snake ( Lapemis curtus ). The structures of polysaccharides LSP3 and LMP3, which were extracted and purified from Lapemis curtus , were determined to be new and highly heterogenic glycosaminoglycans (GAGs) by means of FT-IR, ESI-MS/MS and NMR. LSP3 is a hybrid dermatan sulfate (DS) and composed of 48% 4-sulfated disaccharides (Di4S), 42% 6-sulfated disaccharides (Di6S) and 5% disulfated disaccharides (Di2,6S), while LMP3 is a hybrid chondroitin sulfate (CS) and composed of 70% Di4S, 20% Di6S, and 8% Di2,6S...
May 18, 2018: Marine Drugs
https://www.readbyqxmd.com/read/29779217/ginsenoside-c-mx-isolated-from-notoginseng-stem-leaf-ginsenosides-attenuates-ultraviolet-b-mediated-photoaging-in-human-dermal-fibroblasts
#2
Xiao-Yi Liu, Eunson Hwang, Bom Park, Hien T T Ngo, Yong-Kun Xiao, Tae-Hoo Yi
Notoginseng is a traditional herbal medicine widely used for medicinal therapy in Asia, as it contains numerous ginsenosides with pharmacological effects. In this study, we submitted Notoginseng stem-leaf (NGL) ginsenosides to an enzyme to create reaction the monomer products of ginsenoside C-Mx and then investigated the ability of ginsenoside C-Mx to protect the skin against ultraviolet B-induced injury in normal human dermal fibroblasts (NHDFs). Ginsenoside C-Mx alleviated UVB-induced intracellular reactive oxygen species (ROS), MMP-1, and IL-6 expression while accelerating TGF-β and procollagen type I secretion...
May 20, 2018: Photochemistry and Photobiology
https://www.readbyqxmd.com/read/29777203/ginkgo-biloba-extracts-prevent-aortic-rupture-in-angiotensin-ii-infused-hypercholesterolemic-mice
#3
Xiao-Fang Huang, Song-Zhao Zhang, Ya-Yu You, Na Zhang, Hong Lu, Alan Daugherty, Xiao-Jie Xie
Abdominal aortic aneurysms (AAAs) are a chronic vascular disease characterized by pathological luminal dilation. Aortic rupture is the fatal consequence of AAAs. Ginkgo biloba extracts (GBEs), a natural herb extract widely used as food supplements, drugs, and cosmetics, has been reported to suppress development of calcium chloride-induced AAAs in mice. Calcium chloride-induced AAAs do not rupture, while angiotensin II (AngII)-induced AAAs in mice have high rate of aortic rupture, implicating potentially different mechanisms from calcium chloride-induced AAAs...
May 18, 2018: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/29775705/effects-of-different-chemical-modifications-on-the-antibacterial-activities-of-polysaccharides-sequentially-extracted-from-peony-seed-dreg
#4
Xiao-Li Li, Kiran Thakur, Yuan-Yuan Zhang, Xiao-Fang Tu, Ying-Shuo Zhang, Dan-Ye Zhu, Jian-Guo Zhang, Zhao-Jun Wei
The peony seed dreg polysaccharide (PSDPs) fractions and their modified derivatives were examined for their antibacterial potential. PSDPs along with their derivatives exhibited appreciable antibacterial activity against both Gram-positive (B. subtilis and S. aureus) as well as Gram-negative (E. coli and S. typhimurium) bacteria. Among the four polysaccharide fractions, HBSS possessed the greatest antibacterial activity with an inhibition zone of 13.6 mm against S. typhimurium, minimal inhibitory concentration of 0...
May 15, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29773013/critical-review-on-curcumin-as-a-therapeutic-agent-from-traditional-herbal-medicine-to-an-ideal-therapeutic-agent
#5
Muhammad Usman Akbar, Kanwal Rehman, Khalid Mahmood Zia, Muhammad Imran Qadir, Muhammad Sajid Hamid Akash, Muhammad Ibrahim
Traditionally, many natural medicinal plants have been used to treat a variety of diseases since ancient times and are considered a potential source of phytochemicals for the development of new drugs. One of these is curcumin, which is an easily accessible, inexpensive, and nontoxic bioactive compound. Curcumin is a very important, naturally occurring, and highly lipophilic and phenolic substance derived from the rhizomes of plant Curcuma longa, a member of the Zingiberaceae (ginger) family, which is mostly used as a curry spice, flavoring agent, insect repellent, coloring agent in food, traditional drug, and ingredient in cosmetics...
2018: Critical Reviews in Eukaryotic Gene Expression
https://www.readbyqxmd.com/read/29772836/soybean-hop-alleviates-estrogen-deficiency-related-bone-loss-and-metabolic-dysfunction-in-ovariectomized-rats-fed-a-high-fat-diet
#6
Dasom Noh, Yeni Lim, Hansol Lee, Hyejin Kim, Oran Kwon
Soybeans and hops have been traditionally used as a natural estrogen replacement therapy and their major active ingredients, isoflavones and prenylflavanones, are known to have estrogenic/antiestrogenic effects depending on the target organ. However, their potential benefits are still subject to controversies. The present study investigated the dual effect of soy isoflavones plus hop prenylflavanones (Soy-Hop) on bone loss and metabolic dysfunction under estrogen deficient condition. Rats were sham-operated ( n = 10) or ovariectomized (OVX; n = 40) and then fed a high-fat diet (HFD) to develop hyperlipidemia in OVX rats within the experimental period of 8 weeks...
May 17, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29763795/protective-effects-of-echinacoside-against-anoxia-reperfusion-injury-in-h9c2-cells-via-up-regulating-p-akt-and-slc8a3
#7
Min Chen, Xiaodong Wang, Bo Hu, Jian Zhou, Xin Wang, Wei Wei, Hua Zhou
Echinacoside is a natural ingredient with various pharmacological activities. In this study, we investigated the protective effects of echinacoside on cardiomyocytes (rat H9c2 cells) in an anoxia/reperfusion (A/R) model. Further, the regulatory function of sodium-calcium exchanger protein 3 (SLC8A3/NCX3) as well as the protein kinase B (AKT) signaling were studied. The present results indicated that echinacoside protected against A/R-induced apoptosis in a dose manner, which was characterized by a decrease in the apoptosis and caspase 3 protein levels in H9c2 cells...
May 12, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29757247/enrichment-and-purification-of-total-ginkgo-flavonoid-o-glycosides-from-ginkgo-biloba-extract-with-macroporous-resin-and-evaluation-of-anti-inflammation-activities-in-vitro
#8
Lihu Zhang, Tingting Wu, Wei Xiao, Zhenzhong Wang, Gang Ding, Linguo Zhao
In the present study, the performance and separation characteristics of six macroporous resins for the enrichment and purification of total ginkgo flavonoid O -glycosides (TGFs) (quercetin (I), kaempferol (II), isorhamnetin (III)) from Ginkgo Biloba extracts (EGB) are evaluated. The adsorption and desorption properties of TGFs are studied on macroporous resins, including D101, D201, AB-8, HPD400, D301, and D311. Along with the results, AB-8 resin exhibits the best adsorption and desorption capacity for these three ginkgo flavonoid O -glycosides among the six resins...
May 13, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29757214/microbial-community-analysis-of-sauerkraut-fermentation-reveals-a-stable-and-rapidly-established-community
#9
Michelle A Zabat, William H Sano, Jenna I Wurster, Damien J Cabral, Peter Belenky
Despite recent interest in microbial communities of fermented foods, there has been little inquiry into the bacterial community dynamics of sauerkraut, one of the world’s oldest and most prevalent fermented foods. In this study, we utilize 16S rRNA amplicon sequencing to profile the microbial community of naturally fermented sauerkraut throughout the fermentation process while also analyzing the bacterial communities of the starting ingredients and the production environment. Our results indicate that the sauerkraut microbiome is rapidly established after fermentation begins and that the community is stable through fermentation and packaging for commercial sale...
May 12, 2018: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/29748510/toxicity-of-selected-acaricides-to-honey-bees-apis-mellifera-and-varroa-varroa-destructor-anderson-and-trueman-and-their-use-in-controlling-varroa-within-honey-bee-colonies
#10
Aleš Gregorc, Mohamed Alburaki, Blair Sampson, Patricia R Knight, John Adamczyk
The efficacies of various acaricides in order to control a parasitic mite, the Varroa mite, Varroa destructor , of honey bees, were measured in two different settings, namely, in laboratory caged honey bees and in queen-right honey bee colonies. The Varroa infestation levels before, during, and after the acaricide treatments were determined in two ways, namely: (1) using the sugar shake protocol to count mites on bees and (2) directly counting the dead mites on the hive bottom inserts. The acaricides that were evaluated were coumaphos, tau-fluvalinate, amitraz, thymol, and natural plant compounds (hop acids), which were the active ingredients...
May 10, 2018: Insects
https://www.readbyqxmd.com/read/29742190/a-natural-cream-to-powder-formulation-developed-for-the-prevention-of-diaper-dermatitis-in-diaper-wearing-infants-and-children-barrier-property-and-in-use-tolerance-studies
#11
Hemali B Gunt, Stanley B Levy, Celeste A Lutrario
INTRODUCTION: Diaper dermatitis is a common condition that develops in the diaper area due to factors such as elevated moisture, increased skin surface pH, and exposure to irritants from urine and feces. These factors suggest interventions to prevent or treat diaper dermatitis such as exposing the skin to air, frequent diaper changes, and thorough cleansing of the diaper area. Barrier creams and powders also have a role in preventing and treating diaper dermatitis. We developed a cream-to-powder product with a formula based on corn starch and other natural ingredients for use in the diaper area...
May 1, 2018: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/29742189/a-six-month-randomized-double-blind-placebo-controlled-study-evaluating-the-safety-and-efficacy-of-a-nutraceutical-supplement-for-promoting-hair-growth-in-women-with-self-perceived-thinning-hair
#12
Glynis Ablon, Sophia Kogan
Hair loss is a complex problem that generates significant concern for those who are affected. Patients seeking medical treatments have limited options, and are increasingly turning to natural therapies. A novel nutraceutical product containing a proprietary Synergen Complex® composed of standardized, active botanicals with potent anti-inflammatory, adaptogenic (anti-stress), antioxidant, and dihydrotestosterone-inhibiting properties has been developed to improve hair growth and hair quality. The objective of this 6-month randomized, double-blind, placebo-controlled study was to assess the ability of this oral supplement (Nutrafol® Women's Capsules) to strengthen and promote the growth of hair in adult women with self-perceived thinning...
May 1, 2018: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/29736498/artificial-mucin-based-saliva-preparations-physicochemical-and-tribological-properties
#13
Joanna Mystkowska, Halina Car, Jan Ryszard Dąbrowski, Justyna Romanowska, Marcin Klekotka, Anna Justyna Milewska
PURPOSE: To create and investigate artificial mucin-based saliva substitutes with properties similar to natural saliva. MATERIALS AND METHODS: Natural saliva and six saliva preparations were tested. Saliva substitutes were made using phosphate buffered saline (PBS) prepared in deionised water or plasma-treated water (PBSPT) with addition of porcine gastric mucin and guar gum or poloxamer 407. A wide range of properties were characterised: physicochemical (changes of pH, conductivity and surface tension over time: 1, 24, 96, 168 h after mixing ingredients), rheological (viscosity and viscoelasticity), tribological (coefficient of friction for titanium alloy Ti-6Al-7Nb kinematic couple) and corrosive (open circuit potential, corrosion potential, polarisation resistance)...
2018: Oral Health & Preventive Dentistry
https://www.readbyqxmd.com/read/29733951/bioinspired-co-crystals-of-imatinib-providing-enhanced-kinetic-solubility
#14
Maude Reggane, Johannes Wiest, Marco Saedtler, Cornelius Harlacher, Marcus Gutmann, Sven H Zottnick, Philippe Piechon, Ina Dix, Klaus Müller-Buschbaum, Ulrike Holzgrabe, Lorenz Meinel, Bruno Galli
Realizing the full potential of co-crystals enhanced kinetic solubility demands a comprehensive understanding of the mechanisms of dissolution, phase conversion, nucleation and crystal growth, and of the complex interplay between the active pharmaceutical ingredient (API), the coformer and co-existing forms in aqueous media. One blueprint provided by nature to keep poorly water-soluble bases in solution is the complexation with phenolic acids. Consequently, we followed a bioinspired strategy for the engineering of co-crystals of a poorly water-soluble molecule - Imatinib - with a phenolic acid, syringic acid (SYA)...
May 4, 2018: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/29730414/quantitative-ecotoxicity-analysis-for-pesticide-mixtures-using-benchmark-dose-methodology
#15
Guiling Yang, Jian Li, Yanhua Wang, Chen Chen, Huiyu Zhao, Kan Shao
Pesticide mixtures can often be found on crops and in the natural environment due to the usage of multiple pesticides in crop production. However, the toxicity of pesticides is mostly evaluated individually but not jointly. Many studies have pointed out that pesticide mixture may have elevated toxicity compared with its individual counterpart, therefore, it is important to quantify the change in toxicity. Such quantification can provide invaluable information for environmental and ecological risk assessment, and further support risk management to develop appropriate means to mitigate the risk...
May 3, 2018: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29727721/natural-occurrence-of-genotoxic-and-carcinogenic-alkenylbenzenes-in-indonesian-jamu-and-evaluation-of-consumer-risks
#16
Suparmi Suparmi, Diana Widiastuti, Sebastiaan Wesseling, Ivonne M C M Rietjens
The consumer risks of jamu, Indonesian traditional herbal medicines, was assessed focussing on the presence of alkenylbenzene containing botanical ingredients. Twenty-three out of 25 samples contained alkenylbenzenes at levels ranging from 3.8 to 440 μg/kg, with methyleugenol being the most frequently encountered alkenylbenzene. The estimated daily intake (EDI) resulting from jamu consumption was estimated to amount to 0.2-171 μg/kg bw/day for individual alkenylbenzenes, to 0.9-203 μg/kg bw/day when adding up all alkenylbenzenes detected, and to 0...
May 1, 2018: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29725222/effects-of-jerusalem-artichoke-powder-and-sodium-carbonate-as-phosphate-replacers-on-the-quality-characteristics-of-emulsified-chicken-meatballs
#17
Burcu Öztürk, Meltem Serdaroğlu
Today incorporation of natural ingredients as inorganic phosphate replacers has come into prominence as a novel research topic due to health concerns about phosphates. In this study, we aimed to investigate the quality of emulsified chicken meatballs produced with Jerusalem artichoke powder (JAP), either alone or in combination with sodium carbonate (SC) as sodium tripolyphosphate (STPP) replacers. The results showed that naturally dried JAP showed favorable technological properties in terms of water-oil binding and gelling...
February 2018: Korean Journal for Food Science of Animal Resources
https://www.readbyqxmd.com/read/29721342/hepatotoxicity-associated-with-use-of-the-weight-loss-supplement-garcinia-cambogia-a-case-report-and-review-of-the-literature
#18
Jiten P Kothadia, Monica Kaminski, Hrishikesh Samant, Marco Olivera-Martinez
The use of herbal and dietary supplements for weight loss is becoming increasingly common as obesity is becoming major health problem in the United States. Despite the popularity of these natural supplements, there are no guidelines for their therapeutic doses and their safety is always a concern. Garcinia cambogia extract with its active ingredient "hydroxycitric acid" is a component of many weight loss regimens. It suppresses fatty acid biosynthesis and decreases appetite. However, its prolonged use in weight maintenance is unknown...
2018: Case Reports in Hepatology
https://www.readbyqxmd.com/read/29720835/combination-of-garcinia-cambogia-extract-and-pear-pomace-extract-additively-suppresses-adipogenesis-and-enhances-lipolysis-in-3t3-l1-cells
#19
Kushal Sharma, Siwon Kang, Dalseong Gong, Sung-Hwa Oh, Eun-Young Park, Min-Ho Oak, Eunyoung Yi
Background: Inhibition of adipogenesis has been a therapeutic target for reducing obesity and obesity-related disorders such as diabetes, hypertension, atherosclerosis, and cancer. For decades, anti-adipogenic potential of many herbal extracts has been investigated. One example is Garcinia cambogia extract (GE) containing (-)-hydroxycitric acid as an active ingredient. GE is currently marketed as a weight loss supplement, used alone or with other ingredients. Pear pomace extract (PE), another natural product, has been also shown to have anti-adipogenic activity in a recent report...
April 2018: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/29720645/representation-of-multiple-objects-in-macaque-category-selective-areas
#20
Pinglei Bao, Doris Y Tsao
Object recognition in the natural world usually occurs in the presence of multiple surrounding objects, but responses of neurons in inferotemporal (IT) cortex, the large brain area responsible for object recognition, have mostly been studied only to isolated objects. We study rules governing responses to multiple objects by cells in two category-selective regions of macaque IT cortex, the middle lateral face patch (ML) and the middle body patch (MB). We find that responses of single ML and MB cells to pairs of objects can be explained by the widely accepted framework of normalization, with one added ingredient: homogeneous category selectivity of neighboring neurons forming the normalization pool...
May 2, 2018: Nature Communications
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