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https://www.readbyqxmd.com/read/29775867/phytochemical-profiles-phototoxic-and-antioxidant-properties-of-eleven-hypericum-species-a-comparative-study
#1
Edoardo Napoli, Laura Siracusa, Giuseppe Ruberto, Alessandra Carrubba, Silvia Lazzara, Antonio Speciale, Francesco Cimino, Antonella Saija, Mariateresa Cristani
Hypericum is one out of the nine genera belonging to the botanical family Clusiaceae Lindl (syn. Hypericaceae Juss.; APG III, 2009). The genus contains 484 species spread worldwide, one of which, Hypericum perforatum, is largely used in folk medicine. The aim of this study was to evaluate the chemical composition, along with the antioxidant and phototoxic activity, of 11 Hypericum species grown in Sicily (H. perforatum L., H. aegypticum L., H. androsaemum L., H. calycinum L., H. hircinum L., H. hirsutum L...
May 15, 2018: Phytochemistry
https://www.readbyqxmd.com/read/29772722/ethnobotany-phytochemistry-and-pharmacological-effects-of-plants-in-genus-cynanchum-linn-asclepiadaceae
#2
REVIEW
Lu Han, Xiuping Zhou, Mengmeng Yang, Li Zhou, Xinxin Deng, Shijie Wei, Wenping Wang, Zhizhong Wang, Xue Qiao, Changcai Bai
Genus Cynanchum L. belongs to the family Asclepiadaceae, which comprise more than 200 species distributed worldwide. In Chinese medical practice, numerous drugs (such as tablets and powders) containing different parts of plants of this genus are used to treat snake bites, bruises, osteoblasts, rheumatoid arthritis and tumors. A search for original articles published on the cynanchum genus was performed by using several resources, including Flora of China Official Website and various scientific databases, such as PubMed, SciFinder, the Web of Science, Science Direct, and China Knowledge Resource Integrated (CNKI)...
May 16, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29772116/bioassay-guided-isolation-of-antifungal-compounds-from-disporopsis-aspera-engl-against-pseudoperonospora-cubensis-and-phytophthora-infestans
#3
Feng Zhu, Chengshan Yuan, Fangli Gang, Chaofu Yang, Wenjun Wu, Jiwen Zhang
Oomycetes are one type of the most highly destructive of the diseases that cause damage to some important crop plants, such as potato late blight, cucumber downy mildew and grape downy mildew. As main approach of the ongoing search for new botanical fungicide from plant, the secondary metabolites of D. aspera were investigated. Through efficient bioassay-guided isolation, two new (1, 2), twelve known compounds (3-14) were isolated, and their structures were determined via extensive NMR, HR-ESI-MS, IR. They were isolated from this genus for the first time except for compounds 11, 12...
May 17, 2018: Chemistry & Biodiversity
https://www.readbyqxmd.com/read/29769620/carvacrol-and-linalool-co-loaded-in-%C3%AE-cyclodextrin-grafted-chitosan-nanoparticles-as-sustainable-biopesticide-aiming-pest-control
#4
Estefânia V R Campos, Patrícia L F Proença, Jhones L Oliveira, Anderson E S Pereira, Lígia Nunes de Morais Ribeiro, Fabrício O Fernandes, Kelly C Gonçalves, Ricardo A Polanczyk, Tatiane Pasquoto-Stigliani, Renata Lima, Cirano C Melville, Jaqueline F Della Vechia, Daniel J Andrade, Leonardo F Fraceto
Pesticides are the main tactics for pest control because they reduce the pest population very fast and their efficiency does not depend on abiotic factors. However, the indiscriminate use of these substances can speed up the development of resistant populations and causing environmental contamination. Therefore, alternative methods of pest control are sought, such as the use of botanical compounds. Nanoencapsulation of volatile compounds has been shown to be an important tool that can be used to overcome the lack of stability of these compounds...
May 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29765062/publisher-correction-chitosan-nanoparticles-functionalized-with-%C3%AE-cyclodextrin-a-promising-carrier-for-botanical-pesticides
#5
Estefânia V R Campos, Patrícia L F Proença, Jhones L Oliveira, Cirano C Melville, Jaqueline F Della Vechia, Daniel J de Andrade, Leonardo F Fraceto
A correction to this article has been published and is linked from the HTML and PDF versions of this paper. The error has not been fixed in the paper.
May 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29760885/areas-of-high-conservation-value-at-risk-by-plant-invaders-in-georgia-under-climate-change
#6
Daniel Slodowicz, Patrice Descombes, David Kikodze, Olivier Broennimann, Heinz Müller-Schärer
Invasive alien plants (IAP) are a threat to biodiversity worldwide. Understanding and anticipating invasions allow for more efficient management. In this regard, predicting potential invasion risks by IAPs is essential to support conservation planning into areas of high conservation value (AHCV) such as sites exhibiting exceptional botanical richness, assemblage of rare, and threatened and/or endemic plant species. Here, we identified AHCV in Georgia, a country showing high plant richness, and assessed the susceptibility of these areas to colonization by IAPs under present and future climatic conditions...
May 2018: Ecology and Evolution
https://www.readbyqxmd.com/read/29759189/characterization-of-an-array-of-honeys-of-different-types-and-botanical-origins-through-fluorescence-emission-based-on-leds
#7
Miguel Lastra-Mejías, Albertina Torreblanca-Zanca, Regina Aroca-Santos, John C Cancilla, Jesús G Izquierdo, José S Torrecilla
A set of 10 honeys comprising a diverse range of botanical origins have been successfully characterized through fluorescence spectroscopy using inexpensive light-emitting diodes (LEDs) as light sources. It has been proven that each LED-honey combination tested originates a unique emission spectrum, which enables the authentication of every honey, being able to correctly label it with its botanical origin. Furthermore, the analysis was backed up by a mathematical analysis based on partial least square models which led to a correct classification rate of each type of honey of over 95%...
August 1, 2018: Talanta
https://www.readbyqxmd.com/read/29754094/active-green-wall-plant-health-tolerance-to-diesel-smoke-exposure
#8
Naomi J Paull, Peter J Irga, Fraser R Torpy
Poor air quality is an emerging world-wide problem, with most urban air pollutants arising from vehicular emissions. As such, localized high pollution environments, such as traffic tunnels pose a significant health risk. Phytoremediation, including the use of active (ventilated) green walls or botanical biofilters, is gaining recognition as a potentially effective method for air pollution control. Research to date has tested the capacity of these systems to remove low levels of pollutants from indoor environments...
May 10, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29751644/protective-effects-of-selected-botanical-agents-on-bone
#9
REVIEW
James Jam Jolly, Kok-Yong Chin, Ekram Alias, Kien Hui Chua, Ima Nirwana Soelaiman
Osteoporosis is a serious health problem affecting more than 200 million elderly people worldwide. The early symptoms of this disease are hardly detectable. It causes progressive bone loss, which ultimately renders the patients susceptible to fractures. Osteoporosis must be prevented because the associated fragility fractures result in high morbidity, mortality, and healthcare costs. Many plants used in herbal medicine contain bioactive compounds possessing skeletal protective effects. This paper explores the anti-osteoporotic properties of selected herbal plants, including their actions on osteoblasts (bone forming cells), osteoclasts (bone resorbing cells), and bone remodelling...
May 11, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29748977/paeonol-extracted-from-paeonia-suffruticosa-andr-ameliorated-uvb-induced-skin-photoaging-via-dld-nrf2-are-and-mapk-ap-1-pathway
#10
ZhengWang Sun, Juan Du, Eunson Hwang, Tae-Hoo Yi
Paeonia suffruticosa Andr. (PS) has been used in traditional Chinese medicine for a long time. However, there are no studies that investigate the preventive effects of PS on ultraviolet B (UVB)-induced photoaging. In this study, paeonol (PA) was detected the main compound in PS root. In vitro, PS and PA significantly inhibited UVB-induced phosphorylation of mitogen-activated protein kinase and activator protein 1 in keratinocytes, which consequently led to degradation of procollagen type I. On the other hand, PS and PA increased NAD(P)H:quinone oxidoreductase 1 and heme oxygenase-1 expression, confirmed by greater nuclear accumulation of nuclear factor E2-releated factor 2 (Nrf2)...
May 10, 2018: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/29748791/chemical-variability-in-the-essential-oil-of-leaves-of-ara%C3%A3-%C3%A3-psidium-guineense-sw-with-occurrence-in-the-amazon
#11
Pablo Luis B Figueiredo, Renan C Silva, Joyce Kelly R da Silva, Chieno Suemitsu, Rosa Helena V Mourão, José Guilherme S Maia
BACKGROUND: Psidium guineense, known as Araçá, is a Brazilian botanical resource with commercial application perspectives, based on the functional elements of its fruits and due to the use of its leaves as an anti-inflammatory and antibacterial agent. The essential oils of leaves of twelve specimens of Araçá were analyzed by GC and GC-MS to identify their volatile constituents and associate them with the biological activities reputed to the plant. RESULTS: In a total of 157 identified compounds, limonene, α-pinene, β-caryophyllene, epi-β-bisabolol, caryophyllene oxide, β-bisabolene, α-copaene, myrcene, muurola-4,10(14)-dien-1-β-ol, β-bisabolol, and ar-curcumene were the primary components in descending order up to 5%...
May 10, 2018: Chemistry Central Journal
https://www.readbyqxmd.com/read/29748506/dietary-neurotransmitters-a-narrative-review-on-current-knowledge
#12
REVIEW
Matteo Briguglio, Bernardo Dell'Osso, Giancarlo Panzica, Antonio Malgaroli, Giuseppe Banfi, Carlotta Zanaboni Dina, Roberta Galentino, Mauro Porta
Foods are natural sources of substances that may exert crucial effects on the nervous system in humans. Some of these substances are the neurotransmitters (NTs) acetylcholine (ACh), the modified amino acids glutamate and γ-aminobutyric acid (GABA), and the biogenic amines dopamine, serotonin (5-HT), and histamine. In neuropsychiatry, progressive integration of dietary approaches in clinical routine made it necessary to discern the more about some of these dietary NTs. Relevant books and literature from PubMed and Scopus databases were searched for data on food sources of Ach, glutamate, GABA, dopamine, 5-HT, and histamine...
May 10, 2018: Nutrients
https://www.readbyqxmd.com/read/29747748/pg201-protects-mice-from-experimental-autoimmune-encephalomyelitis-via-suppression-of-effector-t-cell-activation
#13
Min-Jung Bae, Jinyong Choi, Hyun-Keun Kim, Seonung Lim, Sunyoung Kim
BACKGROUND: PG201 is a botanical formulation, approved as an ethical drug (ETC) phytomedicine for treatment of patients with osteoarthritis in Korea, following satisfactory phase II and phase III studies. This phytomedicine was previously been shown to possess significant anti-inflammatory activities, presumably via the control of Th1 and Th17 cells in animal models and in vitro cell culture systems. PURPOSE: In this study, the possibility of using PG201 to treat multiple sclerosis was explored...
April 1, 2018: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/29745419/getting-to-the-root-of-the-matter-challenges-and-recommendations-for-assessing-the-safety-of-botanical-dietary-supplements
#14
Cynthia V Rider, Nigel J Walker, Suramya Waidyanatha
The National Toxicology Program's (NTP) mission is "to evaluate agents of public health concern, by developing and applying the tools of modern toxicology and molecular biology." Botanical dietary supplements (BDS) represent agents of public health concern due to widespread exposure to high doses, a lack of safety data for most products, variable quality, and reports of adverse events. This commentary will address lessons learned in NTP testing activities with BDS and recommendations for moving forward...
May 10, 2018: Clinical Pharmacology and Therapeutics
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
#15
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/29740318/natural-antioxidants-multiple-mechanisms-to-protect-skin-from-solar-radiation
#16
REVIEW
Spencer Dunaway, Rachel Odin, Linli Zhou, Liyuan Ji, Yuhang Zhang, Ana L Kadekaro
Human skin exposed to solar ultraviolet radiation (UVR) results in a dramatic increase in the production of reactive oxygen species (ROS). The sudden increase in ROS shifts the natural balance toward a pro-oxidative state, resulting in oxidative stress. The detrimental effects of oxidative stress occur through multiple mechanisms that involve alterations to proteins and lipids, induction of inflammation, immunosuppression, DNA damage, and activation of signaling pathways that affect gene transcription, cell cycle, proliferation, and apoptosis...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29740227/comparative-analysis-of-bioactive-phenolic-compounds-composition-from-26-medicinal-plants
#17
Oksana Sytar, Irene Hemmerich, Marek Zivcak, Cornelia Rauh, Marian Brestic
Bioactive phenolic compounds are powerful antioxidants in traditionally used medicinal and industrial crop plants and have attracted increased interest in the last years in their application and role in non-destructive methodology for pre-screening analysis of some stress factors. In this study the qualitative target was linked with future possible applications of received data for improving non-destructive methodology as well as for improving existing knowledge regarding antioxidant content in some plant species...
May 2018: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/29738446/quantitative-and-discriminative-evaluation-of-contents-of-phenolic-and-flavonoid-and-antioxidant-competence-for-chinese-honeys-from-different-botanical-origins
#18
Shi Shen, Jingbo Wang, Qin Zhuo, Xi Chen, Tingting Liu, Shuang-Qing Zhang
Phenolics and flavonoids in honey are considered as the main phytonutrients which not only act as natural antioxidants, but can also be used as floral markers for honey identification. In this study, the chemical profiles of phenolics and flavonoids, antioxidant competences including total phenolic content, DPPH and ABTS assays and discrimination using chemometric analysis of various Chinese monofloral honeys from six botanical origins (acacia, Vitex , linden, rapeseed, Astragalus and Codonopsis ) were examined...
May 8, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29737624/leveraging-botanical-resources-for-crop-protection-the-isolation-bioactivity-and-structure-activity-relationships-of-lycoris-alkaloids
#19
Zhan Hu, Ziwen Wang, Liu Yuxiu, Qingmin Wang
BACKGROUND: Lycoris aurea (L' Herit.) Herb (Amaryllidaceae) is a native pesticide in China. The ethanolic extract of Lycoris aureate bulbs, the total alkaloids of L. aurea bulbs and the main alkaloids of L. aurea bulbs were systematically investigated as part of a novel project to study their antiviral, fungal (phytopathogenic) and insecticidal activities. We also prepared eighteen lycorine derivatives and evaluated their bioactivities. RESULTS: Lycorine had excellent larvacidal activity against Plutella xylostella (LC50 = 10...
May 8, 2018: Pest Management Science
https://www.readbyqxmd.com/read/29736381/usage-biological-activity-and-safety-of-selected-botanical-dietary-supplements-consumed-in-the-united-states
#20
REVIEW
P Annécie Benatrehina, Li Pan, C Benjamin Naman, Jie Li, A Douglas Kinghorn
In view of the continuous growth of the botanical dietary supplement industry and the increased popularity of lesser known or exotic botanicals, recent findings are described on the phytochemical composition and biological activities of five selected fruits consumed in the United States, namely, açaí, noni, mangosteen, black chokeberry, and maqui berry. A review of the ethnomedicinal uses of these plants has revealed some similarities ranging from wound-healing to the treatment of fever and infectious diseases...
April 2018: Journal of Traditional and Complementary Medicine
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