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https://www.readbyqxmd.com/read/28095587/quantitative-determination-of-lactones-in-piper-methysticum-kava-kava-by-supercritical-fluid-chromatography
#1
Adele Murauer, Markus Ganzera
A fast and validated supercritical fluid chromatography method for the quantitative determination of major lactones in Piper methysticum, a plant used against nervous anxiety, stress, and restlessness, was developed. The baseline separation of dihydrokavain, demethoxyyangonin, kavain, yangonin, dihydromethysticin, and methysticin was possible in less than 4 min on an Aquity UPC(2) BEH 1.7 µm column, in combination with a mobile phase comprising CO2 and methanol with diethylamine. The column temperature had a great impact on the results because only at 70 °C could kavain and yangonin be fully resolved...
January 17, 2017: Planta Medica
https://www.readbyqxmd.com/read/28089573/what-is-a-difficult-transfer-analysis-of-7-714-embryo-transfers-the-impact-of-maneuvers-during-embryo-transfers-on-pregnancy-rate-and-a-proposal-of-objective-assessment
#2
Alejandro Kava-Braverman, Francisca Martínez, Ignacio Rodríguez, Manuel Álvarez, Pedro N Barri, Buenaventura Coroleu
OBJECTIVE: To establish the relationship between the degree of difficulty of ET and pregnancy rate (PR), with a view to proposing an algorithm for the objective assessment of ET. DESIGN: Retrospective, observational study. SETTING: In vitro fertilization unit. PATIENT(S): Women undergoing assisted reproductive technology (ART) with ET after IVF/intracytoplasmic sperm injection, in whom fresh embryo transfer or frozen-thawed embryo transfer was performed...
January 12, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28081487/comparative-genome-wide-phylogenetic-and-expression-analysis-of-sbp-genes-from-potato-solanum-tuberosum
#3
Musa Kavas, Aslıhan Kurt Kızıldoğan, Büşra Abanoz
Flowering time is a very important phase in transition to reproductive stage of life in higher plants. SQUAMOSA promoter-binding protein (SBP) gene family encodes plant-specific transcription factors that are involved in regulation of several developmental processes, especially flowering. Although SBP-box genes have been identified in different plants, there have been no study indicating the regulatory effect of SBP box in potato flowering. Here, we report for the first time the identification and characterization of SBP-box transcription factors as well as determination of expression level of SBP-box genes in Solanum tuberosum L...
January 4, 2017: Computational Biology and Chemistry
https://www.readbyqxmd.com/read/28079859/executive-functions-in-sarcoidosis-a-neurocognitive-assessment-study
#4
Özgür Bilgin Topçuoğlu, M Kavas, Hande Alibaş, Gülgün Çetintaş Afşar, Sibel Arınç, İpek Midi, Neşe Tuncer Elmacı
Not available.
December 23, 2016: Sarcoidosis, Vasculitis, and Diffuse Lung Diseases: Official Journal of WASOG
https://www.readbyqxmd.com/read/27936873/composition-of-endophytic-fungal-community-associated-with-leaves-of-maize-cultivated-in-south-brazilian-field
#5
Vivian J Szilagyi-Zecchin, Douglas Adamoski, Renata Rodrigues Gomes, Mariangela Hungria, Angela C Ikeda, Vanessa Kava-Cordeiro, Chirlei Glienke, Lygia V Galli-Terasawa
The objective of this study was to conduct a survey about fungi associated with leaves from two different maize plant lineages and to analyze their microbiota diversity. Isolated fungi were identified by morphological analysis and molecular taxonomy was performed using ITS1-5.8S-ITS2 rDNA. About 27 fungi morphotypes were obtained, 15 of them were from the first maize lineage. About 86.7% of the individuals belonged to the Dothideomycetes class (Phoma sorghina, Epicocum nigrum, Cladosporium sp., Bipolaris zeicola, and Alternaria alternata complex) and 13...
December 2016: Acta Microbiologica et Immunologica Hungarica
https://www.readbyqxmd.com/read/27935218/is-there-a-relationship-between-neonatal-sepsis-and-simple-minor-neurological-dysfunction
#6
Nazan Kavas, Ayşe Engin Arısoy, Asuman Bayhan, Bülent Kara, Ayla Günlemez, Gülcan Türker, Meral Oruç, Ayşe Sevim Gökalp
BACKGROUND: This study examined potential risk factors for and consequences of simple minor neurological dysfunction (SMND), in a group of very low birth weight newborns followed until preschool age. METHODS: This is a prospective longitudinal study. Children with a birth weight below 1,500 g were assessed at 4 to 6 years of age. Twenty eight children with a normal neurological examination and 35 children with simple minor neurological dysfunction were included in the final analysis...
December 9, 2016: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/27871602/hepatotoxicity-due-to-red-bush-tea-consumption-a-case-report
#7
Shamantha Reddy, Pragnyadipta Mishra, Sana Qureshi, Singh Nair, Tracey Straker
Many conventional drugs used today, including isoniazid, dapsone, and acetaminophen, are well recognized culprits of hepatotoxicity. With increasing use of complementary and alternative medical therapies, several herbal medicines, such as Ma-Huang, kava, and chaparral leaf, have been implicated as hepatotoxins. Hepatotoxicity may be the most frequent adverse reaction to these herbal remedies when taken in excessive quantities. A myriad of liver dysfunctions may occur including transient liver enzyme abnormalities due to acute and chronic hepatitis...
December 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27728767/dihydromethysticin-dhm-blocks-tobacco-carcinogen-4-methylnitrosamino-1-3-pyridyl-1-butanone-nnk-induced-o-6-methylguanine-in-a-manner-independent-of-the-aryl-hydrocarbon-receptor-ahr-pathway-in-c57bl-6-female-mice
#8
Sreekanth C Narayanapillai, Shang-Hsuan Lin, Pablo Leitzman, Pramod Upadhyaya, Carolyn J Baglole, Chengguo Xing
4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK) is a key carcinogen responsible for tobacco smoke-induced lung carcinogenesis. Among the types of DNA damage caused by NNK and its metabolite, 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol (NNAL), O(6)-methylguanine (O(6)-mG) is likely the most carcinogen in A/J mice. Results of our previous studies showed that levels of O(6)-mG and other types of NNAL-derived DNA damage were preferentially reduced in the lung of female A/J mice upon dietary treatment with dihydromethysticin (DHM), a promising lung cancer chemopreventive agent from kava...
November 21, 2016: Chemical Research in Toxicology
https://www.readbyqxmd.com/read/27692836/predictive-models-and-risk-of-biopsy-progression-in-active-surveillance-patients
#9
Viacheslav Iremashvili, Murugesan Manoharan, Bruce R Kava, Dipen J Parekh, Sanoj Punnen
OBJECTIVE: To analyze the performance of different radical prostatectomy-based prognostic tools in predicting the biopsy progression in our active surveillance cohort. MATERIALS AND METHODS: We analyzed 326 patients with biopsy Gleason grade≤6,≤2 positive biopsy cores,≤20% tumor present in any core, prostate-specific antigen<15ng/dl, and clinical stages T1-T2a all of whom had at least single surveillance biopsy. Probabilities of pathologically relatively aggressive disease were estimated using Partin and Dinh risk tables and Kattan, Truong, and Kulkarni nomograms for each individual patient...
September 27, 2016: Urologic Oncology
https://www.readbyqxmd.com/read/27664732/identification-of-genes-associated-with-asexual-reproduction-in-phyllosticta-citricarpa-mutants-obtained-through-agrobacterium-tumefaciens-transformation
#10
Eduardo Henrique Goulin, Daiani Cristina Savi, Desirrê Alexia Lourenço Petters, Vanessa Kava, Lygia Galli-Terasawa, Geraldo José Silva, Chirlei Glienke
Phyllosticta citricarpa is the epidemiological agent of Citrus Black Spot (CBS) disease, which is responsible for large economic losses worldwide. CBS is characterized by the presence of spores (pycnidiospores) in dark lesions of fruit, which are also responsible for short distance dispersal of the disease. The identification of genes involved in asexual reproduction of P. citricarpa can be an alternative for directional disease control. We analyzed a library of mutants obtained through Agrobacterium tumefaciens transformation system, looking for alterations in growth and reproductive structure formation...
November 2016: Microbiological Research
https://www.readbyqxmd.com/read/27617160/two-novel-gldc-mutations-in-a-neonate-with-nonketotic-hyperglycinemia
#11
Sarah L Nickerson, Shanti Balasubramaniam, Philippa A Dryland, Jennifer M Love, Maina P Kava, Donald R Love, Debra O Prosser
Nonketotic hyperglycinemia, also known as glycine encephalopathy (OMIM #605899), is an autosomal recessive disorder of glycine metabolism resulting from a defect in the glycine cleavage system. We report two novel mutations of the glycine decarboxylase (GLDC) gene observed in a compound heterozygous state in a neonate of mixed Maori and Caucasian parentage: c.395C>T p.(Ser132Leu) in exon 3, and c.256-?_334+?del p.(Ser86Valfs*119), resulting in an out-of-frame deletion of exon 2. Additionally, we describe our experience of implementing the ketogenic diet, alongside standard pharmacological therapy, and highlight its potential therapeutic benefit in severe nonketotic hyperglycinemia, particularly in seizure management...
September 2016: Journal of Pediatric Genetics
https://www.readbyqxmd.com/read/27587202/cisplatin-analogues-with-an-increased-interaction-with-dna-prospects-for-therapy
#12
Megan E Hardie, Hieronimus W Kava, Vincent Murray
Cisplatin is widely used as a cancer chemotherapeutic agent and this review covers the mechanism of action of cisplatin, cellular resistance to cisplatin, the genomic location of cisplatin adducts and the properties of DNA-targeted Pt complexes. A particular focus of this review is the interaction of Pt compounds with DNA. The technology involved in determining Pt-drug/DNA interactions has advanced and permits clearer views of this process. In particular, molecular biological techniques permit a more accurate and precise determination of the sequence specific preference of Pt adduct formation...
August 31, 2016: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/27567075/cpg-methylation-increases-the-dna-binding-of-9-aminoacridine-carboxamide-pt-analogues
#13
Hieronimus W Kava, Vincent Murray
This study investigated the effect of CpG methylation on the DNA binding of cisplatin analogues with an attached aminoacridine intercalator. DNA-targeted 9-aminoacridine carboxamide Pt complexes are known to bind at 5'-CpG sequences. Their binding to methylated and non-methylated 5'-CpG sequences was determined and compared with cisplatin. The damage profiles of each platinum compound were quantified via a polymerase stop assay with fluorescently labelled primers and capillary electrophoresis. Methylation at 5'-CpG was shown to significantly increase the binding intensity for the 9-aminoacridine carboxamide compounds, whereas no significant increase was found for cisplatin...
October 1, 2016: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/27469199/utilizing-ayurvedic-literature-for-the-identification-of-novel-phytochemical-inhibitors-of-botulinum-neurotoxin-a
#14
Chinni Yalamanchili, Vamshi K Manda, Amar G Chittiboyina, Rebecca L Guernieri, William A Harrell, Robert P Webb, Leonard A Smith, Ikhlas A Khan
ETHNOPHARMACOLOGICAL RELEVANCE: Ayurveda, an ancient holistic system of health care practiced on the Indian subcontinent, utilizes a number of multi-plant formulations and is considered by many as a potential source for novel treatments, as well as the identification of new drugs. Our aim is to identify novel phytochemicals for the inhibition of bacterial exotoxin, botulinum neurotoxin A (BoNT/A) based on Ayurvedic literature. BoNT/A is released by Clostridium species, which when ingested, inhibits the release of acetylcholine by concentrating at the neuromuscular junction and causes flaccid paralysis, resulting in a condition termed as botulism, and may also lead to death due to respiratory arrest...
July 25, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/27462877/revision-and-microtomography-of-the-pheidole-knowlesi-group-an-endemic-ant-radiation-in-fiji-hymenoptera-formicidae-myrmicinae-myrmicinae
#15
Georg Fischer, Eli M Sarnat, Evan P Economo
The Fijian islands, a remote archipelago in the southwestern Pacific, are home to a number of spectacular endemic radiations of plants and animals. Unlike most Pacific archipelagos, these evolutionary radiations extend to social insects, including ants. One of the most dramatic examples of ant radiation in Fiji has occurred in the hyperdiverse genus Pheidole. Most of the 17 native Fijian Pheidole belong to one of two species groups that descended from a single colonization, yet have evolved dramatically contrasting morphologies: the spinescent P...
2016: PloS One
https://www.readbyqxmd.com/read/27414470/the-art-and-skill-of-delivering-culturally-responsive-trauma-focused-cognitive-behavioral-therapy-in-tanzania-and-kenya
#16
Briana A Woods-Jaeger, Christine M Kava, Christopher F Akiba, Leah Lucid, Shannon Dorsey
OBJECTIVE: This study explored the facilitators, barriers, and strategies used to deliver a child mental health evidence-based treatment (EBT), trauma-focused cognitive behavioral therapy (TF-CBT), in a culturally responsive manner. In low- and middle-income countries most individuals with mental health problems do not receive treatment due to a shortage of mental health professionals. One approach to addressing this problem is task-sharing, in which lay counselors are trained to deliver mental health treatment...
July 14, 2016: Psychological Trauma: Theory, Research, Practice and Policy
https://www.readbyqxmd.com/read/27402097/liver-toxicity-related-to-herbs-and-dietary-supplements-online-table-of-case-reports-part-3-of-6
#17
Amy Christine Brown
BACKGROUND: No current list of potentially life-threatening, hepatotoxic herbs and dietary supplements based on PubMed case studies exists in a summarized tabular form. METHODS: Documented case reports of herbs or dietary supplements appearing to contribute to liver injury were used to create a "Harmful Herb and Dietary Supplement List" of potentially hepatotoxic herbs and dietary supplements (PubMed, 1966 to May, 2015, and cross-referencing). The spectrum of herbal induced liver injuries (HDSILI) researched included elevated liver enzymes, hepatitis, steatosis, cholestasis, hepatic necrosis, hepatic fibrosis, hepatic cirrhosis, veno-occlusive disease, acute liver failure requiring a liver transplant, and death...
July 8, 2016: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/27384395/the-psychopharmacology-algorithm-project-at-the-harvard-south-shore-program-an-algorithm-for-generalized-anxiety-disorder
#18
Harmony Raylen Abejuela, David N Osser
This revision of previous algorithms for the pharmacotherapy of generalized anxiety disorder was developed by the Psychopharmacology Algorithm Project at the Harvard South Shore Program. Algorithms from 1999 and 2010 and associated references were reevaluated. Newer studies and reviews published from 2008-14 were obtained from PubMed and analyzed with a focus on their potential to justify changes in the recommendations. Exceptions to the main algorithm for special patient populations, such as women of childbearing potential, pregnant women, the elderly, and those with common medical and psychiatric comorbidities, were considered...
July 2016: Harvard Review of Psychiatry
https://www.readbyqxmd.com/read/27343363/raloxifene-raloxifene-poly-ethylene-glycol-conjugate-loaded-microspheres-a-novel-strategy-for-drug-delivery-to-bone-forming-cells
#19
Ayşegül Kavas, Dilek Keskin, Korhan Altunbaş, Ayşen Tezcaner
Raloxifene (Ral)- or Ral-poly(ethylene glycol) (PEG) conjugate-loaded microspheres were prepared with poly(ε-caprolactone) (PCL) alone or with the blend of PCL and poly(D,L-lactide-co-glycolide) (PLGA) to provide controlled and sustained Ral release systems. Benefits of these formulations were evaluated on bone regeneration. Ral-loaded PCL microspheres had the highest encapsulation efficiency (70.7±5.0%) among all groups owing to high hydrophobic natures of both Ral and PCL. Cumulative amount of Ral released from Ral-PEG (1:2) conjugate-loaded PCL:PLGA (1:1) microspheres (26...
August 20, 2016: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/27332705/kavain-the-major-constituent-of-the-anxiolytic-kava-extract-potentiates-gabaa-receptors-functional-characteristics-and-molecular-mechanism
#20
Han Chow Chua, Emilie T H Christensen, Kirsten Hoestgaard-Jensen, Leonny Y Hartiadi, Iqbal Ramzan, Anders A Jensen, Nathan L Absalom, Mary Chebib
Extracts of the pepper plant kava (Piper methysticum) are effective in alleviating anxiety in clinical trials. Despite the long-standing therapeutic interest in kava, the molecular target(s) of the pharmacologically active constituents, kavalactones have not been established. γ-Aminobutyric acid type A receptors (GABAARs) are assumed to be the in vivo molecular target of kavalactones based on data from binding assays, but evidence in support of a direct interaction between kavalactones and GABAARs is scarce and equivocal...
2016: PloS One
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