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St. John wort

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https://www.readbyqxmd.com/read/28943862/the-chemical-and-antibacterial-evaluation-of-st-john-s-wort-oil-macerates-used-in-kosovar-traditional-medicine
#1
James T Lyles, Austin Kim, Kate Nelson, Angelle L Bullard-Roberts, Avni Hajdari, Behxhet Mustafa, Cassandra L Quave
Hypericum perforatum L. (Hypericaceae), or St. John's Wort, is a well-known medicinal herb often associated with the treatment of anxiety and depression. Additionally, an oil macerate (Oleum Hyperici) of its flowering aerial parts is widely used in traditional medicine across the Balkans as a topical wound and ulcer salve. Other studies have shown that Oleum Hyperici reduces both wound size and healing time. Of its active constituents, the naphthodianthrone hypericin and phloroglucinol hyperforin are effective antibacterial compounds against various Gram-positive bacteria...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28930228/interaction-of-plant-extracts-with-central-nervous-system-receptors
#2
REVIEW
Kenneth Lundstrom, Huyen Thanh Pham, Long Doan Dinh
Background: Plant extracts have been used in traditional medicine for the treatment of various maladies including neurological diseases. Several central nervous system receptors have been demonstrated to interact with plant extracts and components affecting the pharmacology and thereby potentially playing a role in human disease and treatment. For instance, extracts from Hypericum perforatum (St. John's wort) targeted several CNS receptors. Similarly, extracts from Piper nigrum, Stephania cambodica, and Styphnolobium japonicum exerted inhibition of agonist-induced activity of the human neurokinin-1 receptor...
February 23, 2017: Medicines (Basel, Switzerland)
https://www.readbyqxmd.com/read/28885074/clinical-risks-of-st-john-s-wort-hypericum-perforatum-co-administration
#3
Samaneh Soleymani, Roodabeh Bahramsoltani, Roja Rahimi, Mohammad Abdollahi
St. John's wort (SJW) is a common medicinal herb used for the treatment of mild to moderate depression. Hyperforin, one of the chief components of SJW, plays an important role in the induction of cytochrome P450 enzymes (CYP) and P-glycoprotein transporter (P-gp), and therefore, affects the pharmacokinetics of various drugs. There are several clinical studies demonstrating the interaction of SJW with the metabolism of conventional drugs which may cause life-threatening events. Areas covered: This review focuses on human studies that have evaluated pharmacokinetic alterations of conventional drugs in concomitant use with different SJW preparations...
September 13, 2017: Expert Opinion on Drug Metabolism & Toxicology
https://www.readbyqxmd.com/read/28870826/hyperforin-protects-against-acute-cerebral-ischemic-injury-through-inhibition-of-interleukin-17a-mediated-microglial-activation
#4
Li Ma, Xia Pan, Fang Zhou, Kang Liu, Long Wang
Hyperforin, a pharmacologically active component of the medicinal plant Hypericum perforatum (St. John's wort), has been shown to be neuroprotective against acute ischemic stroke. However, the underlying mechanisms are still unclear and need to be fully elucidated. C57BL/6 wildtype (WT) mice or interleukin (IL)-17A knock-out mice were subjected to middle cerebral artery occlusion (60 minutes) followed by reperfusion for 72 hours. Hyperforin (0.5 μg) was injected slowly into the right ventricle of WT mice 1, 24 and 48 hours after middle cerebral artery occlusion (MCAO) onset...
September 1, 2017: Brain Research
https://www.readbyqxmd.com/read/28797065/a-systematic-review-of-the-pharmacokinetic-and-pharmacodynamic-interactions-of-herbal-medicine-with-warfarin
#5
Songie Choi, Dal-Seok Oh, Ui Min Jerng
OBJECTIVES: The aim of this study was to systematically review data regarding pharmacokinetic (PK)-pharmacodynamic (PD) parameters from randomized controlled trials relating to interactions between herbal medicines and warfarin. METHODS: Three electronic databases were searched to identify relevant trials. Two reviewers independently performed the study selection and data extraction. The risk of bias and reporting quality were also assessed independently by two reviewers using the Cochrane risk of bias tool and the consolidated standards of reporting trials (CONSORT)...
2017: PloS One
https://www.readbyqxmd.com/read/28762712/common-herbal-dietary-supplement-drug-interactions
#6
REVIEW
Gary N Asher, Amanda H Corbett, Roy L Hawke
Nearly 25% of U.S. adults report concurrently taking a prescription medication with a dietary supplement. Some supplements, such as St. John's wort and goldenseal, are known to cause clinically important drug interactions and should be avoided by most patients receiving any pharmacologic therapy. However, many other supplements are predicted to cause interactions based only on in vitro studies that have not been confirmed or have been refuted in human clinical trials. Some supplements may cause interactions with a few medications but are likely to be safe with other medications (e...
July 15, 2017: American Family Physician
https://www.readbyqxmd.com/read/28755953/kidney-toxicity-related-to-herbs-and-dietary-supplements-online-table-of-case-reports-part-3-of-5-series
#7
REVIEW
Amy Christine Brown
BACKGROUND: No tabular summary of potentially life-threatening, kidney-toxic dietary supplements (DS; includes herbs) based on PubMed case reports is currently available online and continually updated to forewarn United States consumers, clinicians, and companies manufacturing DS. The purpose of this review was to create an online research summary table of kidney toxicity case reports related to DS. METHODS: Documented PubMed case reports (1966 to May 2016, and cross-referencing) of DS appearing to contribute to kidney toxicity were listed in "DS Toxic Tables...
September 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28700248/comparative-benefits-and-harms-of-complementary-and-alternative-medicine-therapies-for-initial-treatment-of-major-depressive-disorder-systematic-review-and-meta-analysis
#8
Gary N Asher, Gerald Gartlehner, Bradley N Gaynes, Halle R Amick, Catherine Forneris, Laura C Morgan, Emmanuel Coker-Schwimmer, Erin Boland, Linda J Lux, Susan Gaylord, Carla Bann, Christiane Barbara Pierl, Kathleen N Lohr
OBJECTIVES: To report the comparative benefits and harms of exercise and complementary and alternative medicine (CAM) treatments with second-generation antidepressants (SGA) for major depressive disorder (MDD). DESIGN: Systematic review and meta-analysis. SETTINGS: Outpatient clinics. SUBJECTS: Adults, aged 18 years and older, with MDD receiving an initial treatment attempt with SGA. INTERVENTIONS: Any CAM or exercise intervention compared with an SGA...
July 12, 2017: Journal of Alternative and Complementary Medicine: Research on Paradigm, Practice, and Policy
https://www.readbyqxmd.com/read/28683711/-decreased-everolimus-blood-concentration-associated-with-consumption-of-st-john-s-wort-hypericum-perforatum-extract-sweets
#9
Héctor Cristóbal Gutiérrez, Virginia Martínez Callejo, Ana María García de la Paz, David Gómez Gómez, María Ochagavía Sufrategui, Marta Valero Domínguez, M ª de Las Mercedes Colorado Araujo, Elena Vejo Puente
No abstract text is available yet for this article.
July 1, 2017: Farmacia Hospitalaria
https://www.readbyqxmd.com/read/28669795/downstream-processing-of-hyperforin-from-hypericum-perforatum-root-cultures
#10
Paul Haas, Mariam Gaid, Ajmal Zarinwall, Ludger Beerhues, Stephan Scholl
Hyperforin is a major metabolite of the medicinal plant Hypericum perforatum (St. John's Wort) and has recently been found in hormone induced root cultures. The objective of this study is to identify a downstream process for the production of a hyperforin-rich extract with maximum extraction efficiency and minimal decomposition. The maximum extraction time was found to be 60min. The comparison of two equipment concepts for the extraction and solvent evaporation was performed employing two different solvents...
June 29, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/28653745/st-john-s-wort-for-depression-scoping-review-about-perceptions-and-use-by-general-practitioners-in-clinical-practice
#11
Kirsty Forsdike, Marie Pirotta
BACKGROUND: Extracts of Hypericum perforatum, more commonly known as St John's wort (SJW), have good evidence for treating depression. The herb is easily accessible and widely used by consumers, although it has potential for interaction with other medicines. Consumers' use of SJW is often not discussed with their general practitioners (GPs). It is unclear how GPs perceive use of SJW in practice and the implications for consumers and pharmacists. OBJECTIVE: Explore GPs' perception of SJW use in practice...
June 27, 2017: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/28579821/opioid-analgesics-related-pharmacokinetic-drug-interactions-from-the-perspectives-of-evidence-based-on-randomized-controlled-trials-and-clinical-risk-management
#12
REVIEW
Xiu-Qin Feng, Ling-Ling Zhu, Quan Zhou
BACKGROUND: Multimorbidity results in complex polypharmacy which may bear a risk of drug interactions. A better understanding of opioid analgesics combination therapy used for pain management could help warrant medication safety, efficacy, and economic relevance. Until now there has been no review summarizing the opioid analgesics-related pharmacokinetic drug interactions from the perspective of evidence based on randomized controlled trials (RCTs). METHOD: A literature search was performed using PubMed, MEDLINE, and the Cochrane Library, using a PRISMA flowchart...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28560741/method-development-for-the-determination-of-elements-in-hypericum-perforatum-l-st-john-s-wort-herb-and-preparations-using-inductively-coupled-plasma-optical-emission-spectroscopy-and-microwave-digestion
#13
Jade D Owen, Sara J Evans, Amira Guirguis, Kathryn Kellett, Jacqueline L Stair
OBJECTIVES: A method was developed to analyze St John's wort (Hypericum perforatum L.) herb and preparations using inductively coupled plasma-optical emission spectroscopy (ICP-OES) to determine the quantity of 11 elements (Al, B, Ba, Ca, Cu, Fe, Mg, Mn, Ni, Sr and Zn). METHODS: This study includes the evaluation of digestion acids and calibration methods, as well as instrumental parameters such as choice of nebulizer and emission wavelength. KEY FINDINGS: Two nebulizers (Conikal and SeaSpray) performed similarly for most elements, and two optimum wavelengths were determined for each element...
May 31, 2017: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/28542667/-ign-complementary-alternative-medicine-in-adolescents-with-attention-deficit-hyperactivity-disorder-and-mood-disorders
#14
María Pilar Pérez Carmona
The Complementary/Alternative Medicine (CAM) have been increasingly used by patients such as children and adolescents. The Ministry of Health in Chile (MINSAL) has recognized and regulated some CAM, although there is still unknown their effectiveness and safety of these. OBJECTIVE: Review the available evidence regarding the use of CAM in adolescents with the attention deficit hyperactivity syndrome (ADHD) and mood disorders. METHODOLOGY: A review of the related literature about this topic on PubMed, focus on the last 10 years and using as a keywords Complementary/Alternative Medicine/Therapies, Attention deficit disorder with hyperactivity, Mood disorders, and Children/Adolescents...
April 2017: Revista Chilena de Pediatría
https://www.readbyqxmd.com/read/28502251/st-john-s-wort-hypericum-perforatum-induced-psychosis-a-case-report
#15
Maria Ferrara, Francesco Mungai, Fabrizio Starace
BACKGROUND: St John's wort (Hypericum perforatum) has been known for centuries for its therapeutic properties and its efficacy as an antidepressant has been confirmed by a growing body of evidence. During the last two decades it has also come to prominence with a wider public, due to advertising efforts across Europe and United States of America. However, its availability without prescription, as an over-the-counter medication, raises some concern regarding its clinical management and unsupervised administration to individuals with psychopathological risks...
May 15, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28472287/optimized-and-validated-hplc-analysis-of-st-john-s-wort-extract-and-final-products-by-simultaneous-determination-of-major-ingredients
#16
Konstantina Zeliou, Nikos I Kontaxis, Evangelia Margianni, Christos Petrou, Fotini N Lamari
Aim of this work was to develop a validated high performance liquid chromatography method for the analysis of extracts and final products of St. John's wort, according to international guidelines for bioanalytical method validation. Chromatographic separation was performed on a C18 column with a combination of gradient and isocratic steps; the mobile phase composed of ammonium acetate solution (pH 4.5; 10 mM), acetonitrile and methanol. Quantification and method validation was performed using extract spiked with external reference standards of chlorogenic acid, rutin, hyperoside, isoquercitrin, quercetin and hypericin...
September 1, 2017: Journal of Chromatographic Science
https://www.readbyqxmd.com/read/28465563/comparative-authentication-of-hypericum-perforatum-herbal-products-using-dna-metabarcoding-tlc-and-hplc-ms
#17
Ancuta Cristina Raclariu, Ramona Paltinean, Laurian Vlase, Aurélie Labarre, Vincent Manzanilla, Mihael Cristin Ichim, Gianina Crisan, Anne Krag Brysting, Hugo de Boer
Many herbal products have a long history of use, but there are increasing concerns over product efficacy, safety and quality in the wake of recent cases exposing discrepancies between labeling and constituents. When it comes to St. John's wort (Hypericum perforatum L.) herbal products, there is limited oversight, frequent off-label use and insufficient monitoring of adverse drug reactions. In this study, we use amplicon metabarcoding (AMB) to authenticate 78 H. perforatum herbal products and evaluate its ability to detect substitution compared to standard methods using thin-layer chromatography (TLC) and high performance liquid chromatography coupled with mass spectrometry (HPLC-MS)...
May 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28454189/assessment-of-the-authenticity-of-herbal-dietary-supplements-comparison-of-chemical-and-dna-barcoding-methods
#18
Rahul S Pawar, Sara M Handy, Raymond Cheng, Nicole Shyong, Erich Grundel
About 7 % of the U. S. population reports using botanical dietary supplements. Increased use of such supplements has led to discussions related to their authenticity and quality. Reports of adulteration with substandard materials or pharmaceuticals are of concern because such substitutions, whether inadvertent or deliberate, may reduce the efficacy of specific botanicals or lead to adverse events. Methods for verifying the identity of botanicals include macroscopic and microscopic examinations, chemical analysis, and DNA-based methods including DNA barcoding...
April 28, 2017: Planta Medica
https://www.readbyqxmd.com/read/28450246/hypericum-perforatum-incorporated-chitosan-films-as-potential-bioactive-wound-dressing-material
#19
Seda Güneş, Funda Tıhmınlıoğlu
Recent studies in wound dressing applications offer new therapies and promote wound healing process. The aim of this study was to develop Hypericum perforatum (St John's Wort) oil incorporated chitosan films for wound dressing applications. H. perforatum oil as a potential therapeutic agent was encapsulated in chitosan film to achieve a better wound dressing material. Oil incorporated chitosan films were successfully prepared by solvent casting method in different oil concentrations (0.25-1.5%v/v). Water vapor permeability (WVP), mechanical test, swelling behavior and surface hydrophobicity were performed in order to characterize the prepared films...
September 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28445039/tricyclic-polyprenylated-acylphloroglucinols-from-st-john-s-wort-hypericum-perforatum
#20
Yi Guo, Na Zhang, Chunmei Chen, Jinfeng Huang, Xiao-Nian Li, Junjun Liu, Hucheng Zhu, Qingyi Tong, Jinwen Zhang, Zengwei Luo, Yongbo Xue, Yonghui Zhang
The new polyprenylated acylphloroglucinol derivatives 1-15 and the known furohyperforin (16) were isolated from the stems and leaves of Hypericum perforatum. Their structures were determined by analyses of NMR and HRESIMS data. Their absolute configurations were elucidated by a combination of electronic circular dichroism (ECD) and Rh2(OCOCF3)4-induced ECD, as well as X-ray diffraction crystallography. The new hyperforatin F (9) contains a unique acetyl functionality at C-1 of the bicyclo[3.3.1]nonane core...
April 26, 2017: Journal of Natural Products
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