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https://www.readbyqxmd.com/read/28882430/reproductive-outcomes-in-recipients-are-not-associated-with-oocyte-donor-body-mass-index-up-to-28%C3%A2-kg-m-2-a-cohort-study-of-2722-cycles
#1
Francisca Martínez, Alejandro Kava-Braverman, Elisabet Clúa, Ignacio Rodríguez, Sofia Gaggiotti Marre, Buenaventura Coroleu, Pedro N Barri
The effect of increasing donor body mass index (BMI) on clinical pregnancies was retrospectively analysed in a cohort of consecutive 2722 donor oocyte IVF cycles. The relationship between donor BMI and clinical pregnancies was assessed after adjusting for recipient BMI. Clinical pregnancy rates and live birth rates (LBR) were no different with increasing donor BMI (up to donor BMI ≤28 kg/m(2)). The odds of pregnancy did not vary with donor BMI. Compared with donor BMI quartile 1, OR 95% CI of clinical pregnancy was 1...
August 15, 2017: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/28868919/three-new-kavalactone-dimers-from-piper-methysticum-kava
#2
Yao Yuan, Jian-Xiang Yang, Ling-Hui Nie, Bai-Lin Li, Xu-Bing Qin, Jie-Wei Wu, Sheng-Xiang Qiu
Three new dimeric kavalactones, designated as diyangonins A-C (1-3), along with two known analogs were isolated from the roots of Piper methysticum. Their structures were elucidated by means of extensive analysis of their 1D, 2D NMR, and mass spectroscopic data. All these dimers possess a skeleton featuring a cyclobutane ring connecting two kavalactone units in head-to-tail or head-to-head mode. Compounds 1-5 were evaluated for their cytotoxic activities against human tumor cell lines.
September 4, 2017: Journal of Asian Natural Products Research
https://www.readbyqxmd.com/read/28842208/reclassification-rates-of-patients-eligible-for-active-surveillance-after-the-addition-of-mri-us-fusion-biopsy-an-analysis-of-seven-widely-used-eligibility-criteria
#3
Bruno Nahar, Andrew Katims, Marcelo Panizzutti Barboza, Nachiketh Soodana Prakash, Vivek Venkatramani, Bruce Kava, Ramgopal Satyanarayana, Mark L Gonzalgo, Chad R Ritch, Dipen J Parekh, Sanoj Punnen
OBJECTIVES: To evaluate the impact of adding MRI-US fusion biopsy cores to standard 12-core biopsy in selecting men for Active Surveillance(AS). MATERIALS AND METHODS: Among men undergoing a fusion biopsy for evaluation of prostate cancer, we selected men who were eligible for at least one of seven different AS criteria based on the standard biopsy alone. We assessed each patient's eligibility for each AS criteria with and without the inclusion of fusion biopsy cores...
August 22, 2017: Urology
https://www.readbyqxmd.com/read/28816367/the-in-vitro-and-in-vivo-antiangiogenic-effects-of-flavokawain-b
#4
Mariana C Rossette, Débora C Moraes, Erika K Sacramento, Marco Aurélio Romano-Silva, Juliana L Carvalho, Dawidson A Gomes, Hanna Caldas, Eitan Friedman, Luciana Bastos-Rodrigues, Luiz De Marco
Angiogenesis is implicated in the development of a variety of pathological processes, most commonly cancer. It is essential for tumor growth and metastasis, making it an important cancer therapeutic target. Naturally occurring substances have led to the discovery of anticancer agents. Flavokawain B (FKB), a chalcone isolated from the root extracts of kava-kava plant, inhibits proliferation and causes apoptosis in vitro and in vivo of various cancer cell lines. The antimetastatic potential of FKB has also been suggested...
August 17, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28808400/induction-of-apoptosis-and-cell-cycle-arrest-by-flavokawain-c-on-ht-29-human-colon-adenocarcinoma-via-enhancement-of-reactive-oxygen-species-generation-upregulation-of-p21-p27-and-gadd153-and-inactivation-of-inhibitor-of-apoptosis-proteins
#5
Chung-Weng Phang, Saiful Anuar Karsani, Sri Nurestri Abd Malek
Chalcones have been shown to exhibit anti-cancer properties by targeting multiple molecular pathways. It was, therefore, of interest to investigate flavokawain C (FKC), a naturally occurring chalcone, which can be isolated from Kava (Piper methysticum Forst) root extract. The aim of this study was to investigate the inhibitory effect of FKC on the growth of HT-29 cells and its underlying mechanism of action. Cell viability of HT-29 cells was assessed by Sulforhodamine B assay after FKC treatment. Induction of apoptosis was examined by established morphological and biochemical assays...
July 2017: Pharmacognosy Magazine
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/28746780/kava-241-reduced-periodontal-destruction-in-a-collagen-antibody-primed-porphyromonas-gingivalis-model-of-periodontitis
#7
Abdulsalam Alshammari, Jayesh Patel, Jacob Al-Hashemi, Bin Cai, James Panek, Olivier Huck, Salomon Amar
AIM: The aim of this study was to evaluate the effect of Kava-241, an optimized Piper methysticum Kava compound, on periodontal destruction in a collagen antibody primed oral gavage model of periodontitis. METHODS: Experimental periodontitis was induced by oral gavage of Porphyromonas gingivalis (P.gingivalis) + type-II collagen antibody (AB) in mice during 15 days. Mice were treated with Kava-241 concomitantly or prior to P.gingivalis gavage and compared to untreated mice...
July 26, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28630390/kavalactone-yangonin-induces-autophagy-and-sensitizes-bladder-cancer-cells-to-flavokawain-a-and-docetaxel-via-inhibition-of-the-mtor-pathway
#8
Liu Zhongbo, Ha U-Syn, Yu Ke, Wu Chunli, Yokoyama Noriko, Zi Xiaolin
Consumption of kava (Piper methysticum Forst) has been linked to reduced cancer risk in the South Pacific Islands. Kavalactones are major bioactive components in kava root extracts, which have recently demonstrated anti-cancer activities. However, molecular mechanisms of kavalactones' anti-cancer action remain largely unknown. We have identified two kavalactones, yangonin and 5' 6'-dehydrokawain, as potent inducers of autophagic cell death in bladder cancer cells. The effect of yangonin inducing autophagy is associated with increased expression of beclin and ATG5...
June 20, 2017: Journal of Biomedical Research
https://www.readbyqxmd.com/read/28615969/a-behavioral-survey-of-the-effects-of-kavalactones-on-caenorhabditis-elegans-neuromuscular-transmission
#9
Bwarenaba B Kautu, Juliana Phillips, Kellie Steele, M Shawn Mengarelli, Eric A Nord
Kava is a plant root extract that is widely consumed by Pacific Islanders. Kava contains a class of lactone compounds called kavalactones. The sedative and anxiolytic effects of kava are likely attributed to the efficacies of kavalactones on the nervous system. Although some studies have implicated the potencies of certain kavalactone species on γ-aminobutyric acid transmission, evidence supporting the action of kavalactones on the eukaryotic neuromuscular junction (NMJ) and acetylcholine (ACh) transmission is scant...
2017: Journal of Experimental Neuroscience
https://www.readbyqxmd.com/read/28554064/driving-under-the-influence-of-drugs-perceptions-and-attitudes-of-new-zealand-drivers
#10
Neha Malhotra, Nicola J Starkey, Samuel G Charlton
This study explored the patterns of drug driving in New Zealand by investigating 1) drivers' perceptions about impairment caused by legal and illegal drugs 2) countermeasures employed by drivers when under the influence of drugs (e.g., decisions not to drive) 3) drivers' attitudes about police enforcement of drug driving and 4) the factors that predict the likelihood of engaging in drug driving. Participants (n=434) were licensed drivers who completed an online questionnaire. Results of the questionnaire indicated that drivers rated hallucinogens and opiates as being the illegal drugs producing the highest level of driving impairment and cannabis the lowest...
May 26, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28526473/coronary-flow-reserve-is-reduced-in-sarcoidosis
#11
Seref Kul, Gonul Aciksari Kutlu, Tolga Sinan Guvenc, Murat Kavas, Kenan Demircioglu, Yusuf Yilmaz, Halil Ibrahim Yakar, Asiye Kanbay, Sibel Boga, Mustafa Caliskan
BACKGROUND AND AIMS: Sarcoidosis is a multisystem disease with frequent cardiac involvement, albeit manifest cardiac disease is rare. Though epicardial coronary arteries are not frequently involved, microvascular disease is rather common in both symptomatic and asymptomatic patients. The mechanism of microvascular involvement has not been elaborated yet. The aim of this study is to investigate coronary flow velocity reserve (CFVR) using transthoracic echocardiography in patients with sarcoidosis but without known atherosclerotic coronary artery disease or risk factors for atherosclerosis...
May 4, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28391729/yangonindimers-a-c-three-new-kavalactone-dimers-from-piper-methysticum-kava
#12
Jia-Ling Song, Bai-Lin Li, Yao Yuan, Ling-Hui Nie, Jia Niu, David Chiu, Zhi-Fang Xu, Jie-Wei Wu, Sheng-Xiang Qiu
Three new kavalactone dimers, designated as yangonindimers A-C (1-3), along with one known analogue were isolated from the roots of Piper methysticum. Their structures were elucidated via extensive analysis of their 1D, 2D NMR and mass spectroscopic data. All these dimers possess a skeleton featuring a cyclobutane ring connecting two kavalactone units. Compounds 1-4 were evaluated for their cytotoxic activities against human tumour cell lines NCI-H46, SW480 and HepG2, but none showed significant activity.
April 9, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28376308/differential-colonization-by-bioprospected-rhizobial-bacteria-associated-with-common-bean-in-different-cropping-systems
#13
Josiele Polzin de Oliveira-Francesquini, Mariangela Hungria, Daiani Cristina Savi, Chirlei Glienke, Rodrigo Aluizio, Vanessa Kava, Lygia Vitoria Galli-Terasawa
In this study, we evaluated the diversity of rhizobia isolated from root nodules on common bean (Phaseolus vulgaris) derived from Andean and Mesoamerican centers and grown under field and greenhouse conditions. Genetic characterization of isolates was performed by sequencing analyses of the 16S rRNA gene and 2 housekeeping genes, recA and glnII, and by the amplification of nifH. Symbiotic efficiency was evaluated by examining nodulation, plant biomass production, and plant nitrogen (N) accumulation. The influence of the environment was observed in nodulation capacity, where Rhizobium miluonense was dominant under greenhouse conditions and the Rhizobium acidisoli group prevailed under field conditions...
April 4, 2017: Canadian Journal of Microbiology
https://www.readbyqxmd.com/read/28374157/chalcone-flavokawain-b-induces-autophagic-cell-death-via-reactive-oxygen-species-mediated-signaling-pathways-in-human-gastric-carcinoma-and-suppresses-tumor-growth-in-nude-mice
#14
Chia-Ting Chang, You-Cheng Hseu, Varadharajan Thiyagarajan, Kai-Yuan Lin, Tzong-Der Way, Mallikarjuna Korivi, Jiuun-Wang Liao, Hsin-Ling Yang
Flavokawain B (FKB), a naturally occurring chalcone in kava extracts, has been reported to possess anticancer activity. However, the effect of FKB on gastric cancer remains unclear. We examined the in vitro and in vivo anticancer activity and autophagy involvement of FKB and determined the underlying molecular mechanisms. FKB is potently cytotoxic to human gastric cancer cells (AGS/NCI-N87/KATO-III/TSGH9201) and mildly toxic towards normal (Hs738) cells and primary mouse hepatocytes. FKB-induced AGS cell death was characterized by autophagy, not apoptosis, as evidenced by increased LC3-II accumulation, GFP-LC3 puncta and acidic vesicular organelles (AVOs) formation, without resulting procaspase-3/PARP cleavage...
April 3, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28337433/occupational-stress-and-burnout-among-surgeons-in-fiji
#15
Rajeev Patel, Peter Huggard, Annik van Toledo
AIM: This study examined the levels of occupational stress and burnout among surgeons in Fiji. METHODS: A document set comprising a cover letter; a consent form; a sociodemographic and supplementary information questionnaire; the Maslach Burnout Inventory (MBI); the 12-item General Health Questionnaire (GHQ-12); the Alcohol Use Disorders Identification Test (AUDIT); and the Professional Quality of Life (ProQOL) questionnaires were provided to surgeons from three public divisional hospitals in Fiji...
2017: Frontiers in Public Health
https://www.readbyqxmd.com/read/28335434/induction-of-g2m-arrest-by-flavokawain-a-a-kava-chalcone-increases-the-responsiveness-of-her2-overexpressing-breast-cancer-cells-to-herceptin
#16
Danielle D Jandial, Lauren S Krill, Lixia Chen, Chunli Wu, Yu Ke, Jun Xie, Bang H Hoang, Xiaolin Zi
HER2/neu positive breast tumors predict a high mortality and comprise 25%-30% of breast cancer. We have shown that Flavokawain A (FKA) preferentially reduces the viabilities of HER2-overexpressing breast cancer cell lines (i.e., SKBR3 and MCF7/HER2) versus those with less HER2 expression (i.e., MCF7 and MDA-MB-468). FKA at cytotoxic concentrations to breast cancer cell lines also has a minimal effect on the growth of non-malignant breast epithelial MCF10A cells. FKA induces G2M arrest in cell cycle progression of HER2-overexpressing breast cancer cell lines through inhibition of Cdc2 and Cdc25C phosphorylation and downregulation of expression of Myt1 and Wee1 leading to increased Cdc2 kinase activities...
March 14, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28293192/indole-alkaloids-from-plants-as-potential-leads-for-antidepressant-drugs-a-mini-review
#17
Hazrulrizawati A Hamid, Aizi N M Ramli, Mashitah M Yusoff
Depression is the most common illness observed in the elderly, adults, and children. Antidepressants prescribed are usually synthetic drugs and these can sometimes cause a wide range of unpleasant side effects. Current research is focussed on natural products from plants as they are a rich source of potent new drug leads. Besides Hypericum perforatum (St. John's wort), the plants studied include Passiflora incarnata L. (passion flower), Mitragyna speciosa (kratom), Piper methysticum G. Forst (kava) and Valeriana officinalis L...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28214231/mechanisms-of-action-and-structure-activity-relationships-of-cytotoxic-flavokawain-derivatives
#18
Charlotte Thieury, Nicolas Lebouvier, Rémy Le Guével, Yann Barguil, Gaëtan Herbette, Cyril Antheaume, Edouard Hnawia, Yoshinori Asakawa, Mohammed Nour, Thierry Guillaudeux
22 Flavokawain derivatives (FKd) were obtained by one step syntheses in order to conduct a SAR study to understand the structural requirements for optimum and selective cytotoxicity. FKd and natural flavokawains A and B found into kava, a South Pacific traditional beverage, were evaluated against nine cancer and one healthy cell lines. The targeted cell cycle phases as well as the effects on the induction of apoptosis and cell cycle protein levels were investigated. Therapeutic improvements (more activity and selectivity) were achieved with FKd compared to natural flavokawains and notably with the 2',3,4',6'-tetramethoxychalcone (FKd 19)...
February 6, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28197023/genitourinary-sarcoidosis-an-essential-review-for-the-practicing-clinician
#19
REVIEW
Norman L Block, Bruce R Kava
INTRODUCTION: Sarcoidosis is a multisystem disease that commonly involves the lungs, but may also present with extrapulmonary manifestations. Genitourinary (GU) tract involvement has been traditionally thought to be rare, but that view may underestimate the true prevalence of the disease due to the often, silent presentation thereof. METHODS: The literature pertaining to sarcoidosis from the general systemic point of view, etiology and therapy and with regard to specific organs was reviewed by identifying key words in a PubMed search...
January 2017: Indian Journal of Urology: IJU: Journal of the Urological Society of India
https://www.readbyqxmd.com/read/28160848/traditional-preparations-of-kava-piper-methysticum-inhibit-the-growth-of-human-colon-cancer-cells-in-vitro
#20
L S Einbond, A Negrin, D M Kulakowski, H-A Wu, V Antonetti, F Jalees, W Law, M Roller, S Redenti, E J Kennelly, M J Balick
BACKGROUND: Epidemiological studies indicate there is low incidence of colon cancer in the South Pacific islands, including Fiji, West Samoa, and Vanuatu. Cancer incidence has been shown to be inversely associated with kava (Piper methysticum G. Forst.) ingestion. Hypothesis/Purpose: Kava prepared traditionally will inhibit the growth of human cancer cells. This investigation entails preparation and analysis of kava extracts and study of the growth inhibitory activity of the extracts, alone and combined with hibiscus...
January 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
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