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https://www.readbyqxmd.com/read/29344122/inhibition-of-breast-cancer-cell-growth-by-the-pteris-semipinnata-extract-ent-11%C3%AE-hydroxy-15-oxo-kaur-16-en-19-oic-acid
#1
Juekun Wu, Lili Meng, Meijun Long, Ying Ruan, Xi Li, Yong Huang, Wanshou Qiu
Previous studies have demonstrated strong anti-tumor effects of ent-11α-hydroxy-15-oxo-kaur-16-en-19-oic-acid (5F), an extract from Pteris semipinnata, in liver, lung, stomach and anaplastic thyroid cancer cells. However, whether 5F inhibits the growth of breast cancer cells remains unclear. The present study assessed the effect of 5F on breast cancer cells. The breast cancer cell lines MCF-7, MDA-MB-231 and SK-BR-3 were each treated with 0, 5, 10, 20 and 40 µg/ml 5F. Morphological changes in the breast cancer cells were assessed using fluorescence microscopy...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29340903/characterization-of-ent-kaurene-synthase-and-kaurene-oxidase-involved-in-gibberellin-biosynthesis-from-scoparia-dulcis
#2
Yoshimi Yamamura, Yukari Taguchi, Kei Ichitani, Io Umebara, Ayako Ohshita, Fumiya Kurosaki, Jung-Bum Lee
Gibberellins (GAs) are ubiquitous diterpenoids in higher plants, whereas some higher plants produce unique species-specific diterpenoids. In GA biosynthesis, ent-kaurene synthase (KS) and ent-kaurene oxidase (KO) are key players which catalyze early step(s) of the cyclization and oxidation reactions. We have studied the functional characterization of gene products of a KS (SdKS) and two KOs (SdKO1 and SdKO2) involved in GA biosynthesis in Scoparia dulcis. Using an in vivo heterologous expression system of Escherichia coli, we found that SdKS catalyzed a cyclization reaction from ent-CPP to ent-kaurene and that the SdKOs oxidized ent-kaurene to ent-kaurenoic acid after modification of the N-terminal region for adaptation to the E...
January 16, 2018: Journal of Natural Medicines
https://www.readbyqxmd.com/read/29340693/can-granulomatosis-with-polyangiitis-be-diagnosed-earlier-in-primary-care-a-case-control-study
#3
F A Pearce, R B Hubbard, M J Grainge, R A Watts, A Abhishek, P C Lanyon
Background: People with granulomatosis with polyangiitis (GPA) commonly described long delays before diagnosis. Aim: To study the natural history of GPA prior to diagnosis using primary care data, and determine whether clinical features could be identified to help earlier diagnosis. Design: Case-control study using the Clinical Practice Research Datalink. Methods: We compared primary care activity and clinical features between cases and 10 matched controls...
January 1, 2018: QJM: Monthly Journal of the Association of Physicians
https://www.readbyqxmd.com/read/29335843/study-on-the-clinical-features-and-prognosis-of-penicilliosis-marneffei-without-human-immunodeficiency-virus-infection
#4
Ying-Ge Wang, Jin-Mei Cheng, Hai-Bo Ding, Xi Lin, Guo-Hao Chen, Mei Zhou, Sheng-Nan Ye
OBJECTIVE: To improve the diagnosis and treatment of Penicilliosis marneffei without human immunodeficiency virus infection. METHODS: Analyze and review the clinical features, diagnosis and treatment of six cases of P. marneffei without human immunodeficiency virus infection at The First Affiliated Hospital of Fujian Medical University. RESULTS: Two cases were diagnosed in the ENT Department, three cases in the respiratory department and one case in the dermatological department...
January 15, 2018: Mycopathologia
https://www.readbyqxmd.com/read/29335042/training-and-assessment-in-functional-endoscopic-sinus-surgery
#5
M Chan, S Carrie
BACKGROUND: Functional endoscopic sinus surgery is a common procedure performed within otolaryngology, but it carries potential for significant life-changing complications. It is therefore essential that trainees undergo adequate training. The European Working Time Directive has led to reduced operating time for the trainee surgeon. With variable access and the cost implications associated with cadaveric specimens, simulation can be an invaluable educational resource in surgical training...
January 16, 2018: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/29333119/phytotherapeutics-oridonin-and-ponicidin-show-additive-effects-combined-with-irradiation-in-pancreatic-cancer-in-vitro
#6
Jakob Liermann, Patrick Naumann, Franco Fortunato, Thomas E Schmid, Klaus-Josef Weber, Jürgen Debus, Stephanie E Combs
Background: Chemoradiation of locally advanced non-metastatic pancreatic cancer can lead to secondary operability by tumor mass reduction. Here, we analyzed radiomodulating effects of oridonin and ponicidin in pancreatic cancer in vitro. Both agents are ent-kaurane diterpenoids, extracted from Isodon rubescens, a plant that is well known in Traditional Chinese Medicine. Cytotoxic effects have recently been shown in different tumor entities for both agents. Materials and methods: Pancreatic cancer cell lines AsPC-1, BxPC-3, Panc-1 and MIA PaCa-2 were pretreated with oridonin or ponicidin and irradiated with 2 Gy to 6 Gy...
December 2017: Radiology and Oncology
https://www.readbyqxmd.com/read/29331281/-do-online-ratings-reflect-structural-differences-in-healthcare-the-example-of-german-physician-rating-websites
#7
Nina Meszmer, Lena Jaegers, Oliver Schöffski, Martin Emmert
BACKGROUND: Previous surveys have shown that patient satisfaction varies with the regional supply of physicians. Online ratings on physician-rating websites represent a relatively new instrument to display patient satisfaction results. The aim of this study was (1) to assess the current state of online ratings for two medical disciplines (dermatologists and ear, nose and throat (ENT) specialists), and (2) to analyze online derived patient satisfaction results according to the physician density in Germany...
January 10, 2018: Zeitschrift Für Evidenz, Fortbildung und Qualität Im Gesundheitswesen
https://www.readbyqxmd.com/read/29331009/cyanoacrylate-injury-to-the-ear-canal
#8
Assad Khan, Sinthuja Neminathan, Anita Sonsale, Atilla Dezso
This is a case regarding a 35-year-old gentleman who presented to the Accident and Emergency department at Walsall Manor Hospital. He had mistakenly placed cyanoacrylate ('superglue') into his right ear canal in the early morning. In terms of its removal, an initial attempt was made in the Ear, Nose and throat (ENT) outpatient clinic which proved to be unsuccessful due to the amount of discomfort it caused the patient. Therefore, it had to be removed under general anaesthesia.
October 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/29330988/microbiological-profile-from-middle-ear-and-nasopharynx-in-patients-suffering-from-chronic-active-mucosal-otitis-media
#9
Shahid Farooq Khattak, Nadeem Ahmed Sheikh, Adil Aleem, Muhammad Farooq, Kanwal Nadeem
BACKGROUND: Chronic otitis media is described as a tympanic membrane perforation and ear discharge for more than six weeks duration. Ascending infection from the nasopharynx into the middle ear cleft has been attributed to prevent resolution of chronic otitis media. This research aims to determine the association between the microbiological flora of the nasopharynx with that of the middle ear in patients suffering from chronic (active) mucosal otitis media.. METHODS: Our study is a hospital-based cross-sectional survey...
October 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/29329966/-overview-of-the-knowledge-and-attitudes-of-physicians-in-brazzaville-on-obstructive-sleep-apnea-syndrome
#10
E L P Bemba, A R Ouedraogo, G C Ngouoni, R G Bopaka, P P Koumeka, K B Ossale Abacka, J Mboussa
INTRODUCTION: Obstructive sleep apnea syndrome (OSAS) is the leading sleep-related breathing disorder. Its complications and its repercussions on the quality of life of patients make the OSAS a real public health problem. The objective of this study is to both asses physicians knowledge of OSAS and describe their attitudes towards suspect subjects in Brazzaville. MATERIAL AND METHOD: This was a cross-sectional study of 230 doctors practicing in various hospitals in the city of Brazzaville...
January 9, 2018: Revue de Pneumologie Clinique
https://www.readbyqxmd.com/read/29328659/syntheses-of-tripterifordin-and-neotripterifordin-from-stevioside
#11
Shoji Kobayashi, Keisuke Shibukawa, Yoshiki Hamada, Takuma Kuruma, Asako Kawabata, Araki Masuyama
We report short syntheses of (-)-tripterifordin and (-)-neotripterifordin, potent inhibitors of HIV replication, from stevioside, a natural sweetener used worldwide. The key transformations are reduction at C13 through the formation of a tertiary chloride and subsequent three-step lactonization including a selective iodination at C20 by the photoreaction of the C19-alcohol. The title compounds were reliably obtained from stevioside in 9 and 11 steps (with 5-7 isolation steps), respectively. Additionally, the related lactone-containing ent-kaurenes, doianoterpenes A and B, and two more natural products were synthesized...
January 12, 2018: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/29327938/glaucocalyxin-a-attenuates-the-activation-of-hepatic-stellate-cells-through-the-tgf-%C3%AE-1-smad-signaling-pathway
#12
Zhichao Dong, Qi Gao, Hao Guo
Glaucocalyxin A (GLA) is a biologically active ent-kauranoid diterpenoid isolated from Rabdosia japonica var. glaucocalyx. A large number of studies have shown that GLA possesses important pharmacological activities, such as anti-inflammatory, antitumor, antifibrosis, and antiplatelet activities. However, the role of GLA in the pathogenesis of liver fibrosis remains undefined. Therefore, the aim of this study was to investigate the effects of GLA on hepatic stellate cells (HSCs) activation/proliferation and migration in vitro and its possible mechanism in liver fibrosis...
January 12, 2018: DNA and Cell Biology
https://www.readbyqxmd.com/read/29327682/analysis-of-implementiation-of-4th-head-and-neck-cancer-awareness-week-in-department-of-otolaryngology-in-mi%C3%A4-dzyleski-hospital-in-warsaw
#13
Karolina Dżaman, Karolina Piskadło-Zborowska, Mirosława Pietniczka-Załęska
INTRODUCTION: The aim of the study was to analyze the profile of patients applying for free preventive examinations within The Forth European Head an Neck Cancer (HNC) Awareness Week in the Department of Otorhynolaryngology in Międzyleski Hospital in Warsaw (ORL MSS). MATERIAL AND METHODS: A media campaign was designed to inform HNC risk patients about the opportunity to receive free preventive examinations in ORL MSS. 225 patients were enrolled to the study. Patient age ranged from 26 to 92 (average 63 years)...
August 31, 2017: Otolaryngologia Polska
https://www.readbyqxmd.com/read/29327681/updated-national-comprehensive-cancer-network-guidelines-for-treatment-of-head-and-neck-cancers-2010-2017
#14
Małgorzata Wierzbicka, Joanna Napierała
INTRODUCTION: The diagnostic and therapeutic recommendations have been changing over the years to improve treatment outcomes and quality of life of Head and Neck Cancer (HNC) patients. AIM: The aim of this study was to present currently recommended Head and Neck Cancer treatment guidelines based on the literature review with particular emphasis on novel approaches the NCCN algorithms. MATERIAL AND METHODS: The review of literature covering articles published in the last five years and pointing out essential changes in HNC treatment regarding evidence based medicine...
December 30, 2017: Otolaryngologia Polska
https://www.readbyqxmd.com/read/29324922/autologous-free-fat-transfer-in-patients-with-velopharyngeal-insufficiency
#15
Pericles Foroglou, Olga Christina Goula, Antonis Tsimponis, Elena Georgiadou, Efterpi Demiri
AIM: To report our initial experience and preliminary results of autologous free fat transfer to improve speech and hypernasality in patients with velopharyngeal insufficiency (VPI) as a sequela of cleft lip and palate repair. MATERIAL AND METHODS: To date 2 patients with a mean age of 25 years were treated with this method. Both had initially received multiple procedures elsewhere for cleft lip and palate repair. We recorded the number of free fat transfer sessions, anatomical places of placement and volumes injected in-patient stay, occurrence or absence of complications and effectiveness of this operation in terms of clinical speech evaluation, functional velopharyngeal closure measurements and speech improvement percentage by an Ear, Nose and Throat (ENT) specialist...
September 2017: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/29322502/systematic-review-of-benefits-or-harms-of-routine-anaesthetist-inserted-throat-packs-in-adults-practice-recommendations-for-inserting-and-counting-throat-packs-an-evidence-based-consensus-statement-by-the-difficult-airway-society-das-the-british-association
#16
REVIEW
V Athanassoglou, A Patel, B McGuire, A Higgs, M S Dover, P A Brennan, A Banerjee, B Bingham, J J Pandit
Throat packs are commonly inserted by anaesthetists after induction of anaesthesia for dental, maxillofacial, nasal or upper airway surgery. However, the evidence supporting this practice as routine is unclear, especially in the light of accidentally retained throat packs which constitute 'Never Events' as defined by NHS England. On behalf of three relevant national organisations, we therefore conducted a systematic review and literature search to assess the evidence base for benefit, and also the extent and severity of complications associated with throat pack use...
January 10, 2018: Anaesthesia
https://www.readbyqxmd.com/read/29320957/cardiovascular-and-metabolic-health-of-74-children-from-women-previously-diagnosed-with-polycystic-ovary-syndrome-in-comparison-with-a-population-based-reference-cohort
#17
Marlieke A de Wilde, Jacobien B Eising, Marlise N Gunning, Maria P H Koster, Annemieke M V Evelein, Geertje W Dalmeijer, Cuno S P M Uiterwaal, Marinus J C Eijkemans, Cornelis K van der Ent, Folkert J Meijboom, Bart C J M Fauser
Women with polycystic ovary syndrome (PCOS) have compromised cardiovascular health profiles and an increased risk of pregnancy complications. In order to evaluate potential consequences, we aim to compare the cardiovascular and metabolic health of the children from women with PCOS with a population-based reference cohort. We included children from women with PCOS between the age of 2.5 to 4 years (n = 42) and 6 to 8 years (n = 32). The reference groups consisted of 168 (3-4 years old) and 130 children (7-8 years old)...
January 1, 2018: Reproductive Sciences
https://www.readbyqxmd.com/read/29320879/isolation-and-purification-of-diterpenoids-from-the-aerial-parts-of-isodon-excisoides-target-guided-by-uplc-ltq-orbitrap-ms
#18
Li-Ping Dai, Ling-Xia Zhang, Ya-Lin Liu, Hong Wu, Rui-Xin Liu, Meng Zhao, Shuang-Shuang Tian, Xue Jiang, Sui-Qing Chen
Cytotoxic diterpenoids were enriched and orientation prepared from the aerial parts of Isodon excisoides target-guided by UPLC-LTQ-Orbitrap-MS. Four diterpenoids were obtained, including a novel compound: 1α-acetoxy-7α, 14β, 20α-trihydroxy-ent-kaur-16-en-15-one (1); together with three known compounds kamebakaurin (2), lasiokaurin (3), enmenol-1-β-glucoside (4). Their structures were elucidated on the basis of spectroscopic methods in conjunction with published data for their analogues. All compounds were tested for their cytotoxic effects against five human cancer cell lines HCT-116, HepG2, A2780, NCI-H1650 and BGC-823, respectively...
January 10, 2018: Natural Product Research
https://www.readbyqxmd.com/read/29317534/linking-secondary-metabolites-to-gene-clusters-through-genome-sequencing-of-six-diverse-aspergillus-species
#19
Inge Kjærbølling, Tammi C Vesth, Jens C Frisvad, Jane L Nybo, Sebastian Theobald, Alan Kuo, Paul Bowyer, Yudai Matsuda, Stephen Mondo, Ellen K Lyhne, Martin E Kogle, Alicia Clum, Anna Lipzen, Asaf Salamov, Chew Yee Ngan, Chris Daum, Jennifer Chiniquy, Kerrie Barry, Kurt LaButti, Sajeet Haridas, Blake A Simmons, Jon K Magnuson, Uffe H Mortensen, Thomas O Larsen, Igor V Grigoriev, Scott E Baker, Mikael R Andersen
The fungal genus of Aspergillus is highly interesting, containing everything from industrial cell factories, model organisms, and human pathogens. In particular, this group has a prolific production of bioactive secondary metabolites (SMs). In this work, four diverse Aspergillus species (A. campestris, A. novofumigatus, A. ochraceoroseus, and A. steynii) have been whole-genome PacBio sequenced to provide genetic references in three Aspergillus sections. A. taichungensis and A. candidus also were sequenced for SM elucidation...
January 9, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29316792/maximal-predictability-approach-for-identifying-the-right-descriptors-for-electrocatalytic-reactions
#20
Dilip Krishnamurthy, Vaidish Sumaria, Venkatasubramanian Viswanathan
Density Functional Theory (DFT) calculations are being routinely used to iden- tify new material candidates that approach activity near fundamental limits imposed by thermodynamics or scaling relations. DFT calculations are associated with inher- ent uncertainty, which limits the ability to delineate materials (distinguishability) that possess high activity. Development of error-estimation capabilities in DFT has en- abled uncertainty propagation through activity-prediction models. In this work, we demonstrate an approach to propagating uncertainty through thermodynamic activ- ity models leading to a probability distribution of the computed activity and thereby its expectation value...
January 10, 2018: Journal of Physical Chemistry Letters
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