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https://www.readbyqxmd.com/read/28102682/identification-of-serratane-synthase-gene-from-the-fern-lycopodium-clavatum
#1
Yusuke Saga, Takeshi Araki, Hiroshi Araya, Kazuki Saito, Mami Yamazaki, Hideyuki Suzuki, Tetsuo Kushiro
Ferns are known to produce onoceroids including onoceranes and serratanes having unusual structures among triterpenes. From the fern Lycopodium clavatum, a novel onoceroid synthase gene was cloned that showed high sequence identity with a previously identified α-onocerin synthase. Functional analysis by coexpression with pre-α-onocerin synthase in yeast led to the production of tohogenol and serratenediol. The result suggested that serratanes are directly biosynthesized from pre-α-onocerin and not from α-onocerin as previously assumed...
January 19, 2017: Organic Letters
https://www.readbyqxmd.com/read/28089168/the-relationship-between-dietary-intake-and-other-cardiovascular-risk-factors-with-blood-pressure-in-individuals-without-a-history-of-a-cardiovascular-event-evidence-based-study-with-5670-subjects
#2
Mohsen Mazidi, Mohsen Nematy, Ali Reza Heidari-Bakavoli, Zahra Namadchian, Majid Ghayour-Mobarhan, Gordon A Ferns
BACKGROUND AND AIM: Raised blood pressure is a leading cause of morbidity and mortality worldwide; improved nutritional approaches to population-wide prevention are required.We aimed to investigate the relationship between dietary intake and other cardiovascular risk factors with blood pressure in individuals without a history of a cardiovascular event in an Iranian cohort. MATERIAL AND METHOD: A cross-sectional study of 5670 healthy subjects [approximately 40% (n=2179) males and 60% (n=3491) females] was undertaken in a sample from northeastern Iran...
December 9, 2016: Diabetes & Metabolic Syndrome
https://www.readbyqxmd.com/read/28087874/two-cases-of-asymmetric-papules
#3
Celia Horcajada-Reales, Laura Gómez-Recuero Muñoz, Ricardo Suárez-Fern Ández, Minia Campos-Dominguez
Both of these young patients presented with rashes that had spread from their abdomen to their arms and legs--but only on one side.
November 2016: Journal of Family Practice
https://www.readbyqxmd.com/read/28080182/multi-professional-perspectives-on-adolescent-and-young-adult-oncology-across-europe-an-e-delphi-survey
#4
Simon A Pini, Faith Gibson, Lorna A Fern, Sue J Morgan, Robert S Phillips, Dan P Stark
The aims of this article are to describe the ongoing development of adolescent and young adult (AYA) cancer services within the European Union (EU), and to develop consensus on key areas within the field. This survey used an e-Delphi design. An initial survey was distributed via email to professionals working in Europe. A snowball sampling technique was used to promote distribution. Consensus was sought over three rounds from October 2012 to April 2015. Consensus was defined as >80% agreement ("agree" or "strongly agree")...
January 12, 2017: Journal of Adolescent and Young Adult Oncology
https://www.readbyqxmd.com/read/28079941/changes-to-cretaceous-surface-fire-behaviour-influenced-the-spread-of-the-early-angiosperms
#5
Claire M Belcher, Victoria A Hudspith
Angiosperms evolved and diversified during the Cretaceous period. Early angiosperms were short-stature weedy plants thought to have increased fire frequency and mortality in gymnosperm forest, aiding their own expansion. However, no explorations have considered whether the range of novel fuel types that diversified throughout the Cretaceous also altered fire behaviour, which should link more strongly to mortality than fire frequency alone. We measured ignitability and heat of combustion in analogue Cretaceous understorey fuels (conifer litter, ferns, weedy and shrubby angiosperms) and used these data to model palaeofire behaviour...
February 2017: New Phytologist
https://www.readbyqxmd.com/read/28078730/a-fern-aintegumenta-gene-mirrors-baby-boom-in-promoting-apogamy-in-ceratopteris-richardii
#6
Linh T Bui, Dzevida Pandzic, Christopher E Youngstrom, Simon Wallace, Erin E Irish, Péter Szövényi, Chi-Lien Cheng
Asexual reproduction is widespread in land plants, including ferns where 10% of all species are obligate asexuals. In these ferns, apogamous sporophytes are generated directly from gametophytes, bypassing fertilization. In the model fern Ceratopteris richardii, a sexual species, apogamy can be induced by culture on high sugar media. BABY BOOM (BBM) genes in angiosperms are known to promote somatic embryogenesis, which like apogamy produce sporophytes without fertilization. Here, a Brassica napus BBM (BnBBM) was used to investigate genetic similarity between apogamy in ferns and somatic embryogenesis in angiosperms...
January 12, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28065479/interaction-between-a-variant-of-cdkn2a-b-gene-with-lifestyle-factors-in-determining-dyslipidemia-and-estimated-cardiovascular-risk-a-step-toward-personalized-nutrition
#7
Mehrane Mehramiz, Faeze Ghasemi, Habibollah Esmaily, Maryam Tayefi, Seyed Mahdi Hassanian, Mahsa Sadeghzade, Fatemeh Sadabadi, Mohsen Moohebati, Mahmoud Reza Azarpazhooh, Seyed Mohammad Reza Parizadeh, Alireza Heidari-Bakavoli, Mohammad Safarian, Mohsen Nematy, Mahmoud Ebrahimi, Mikhail Ryzhikov, Gordon A Ferns, Majid Ghayour-Mobarhan, Amir Avan
BACKGROUND & AIMS: Several genome-wide-association-studies have identified genetic variants in a region on chromosome 9p21 that are associated with an increased risk of Cardiovascular disease (CVD) and diabetes. Here we have explored the interaction of a genetic variant of the CDKN2A/B-rs10811661 gene locus with cardiovascular risk factors and environmental-exposures (e.g., diet and physical activity) in 1165 individuals recruited from the Mashhad-Stroke and Heart-Atherosclerotic-Disorders cohort...
December 28, 2016: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28064048/optimization-characterization-and-in-vitro-assessment-of-alginate-pectin-ionic-cross-linked-hydrogel-film-for-wound-dressing-applications
#8
Masoud Rezvanain, Naveed Ahmad, Mohd Cairul Iqbal Mohd Amin, Shiow-Fern Ng
Natural polymer-based hydrogel films have great potential for biomedical applications and are good candidates for wound dressings. In this study, we aimed to develop simvastatin-loaded crosslinked alginate-pectin hydrogel films by ionic crosslinking to improve the mechanical characteristics, wound fluid uptake and drug release behavior. Alginate-pectin hydrocolloid films were chemically crosslinked by immersing in different concentrations of CaCl2 (0.5-3% w/v) for 2-20min. The degree of crosslinking was influenced by both contact time and CaCl2 concentration...
January 4, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28062406/anatomically-preserved-strobili-and-leaves-from-the-permian-of-china-dorsalistachyaceae-fam-nov-broaden-knowledge-of-noeggerathiales-and-constrain-their-possible-taxonomic-affinities
#9
Shi-Jun Wang, Richard M Bateman, Alan R T Spencer, Jun Wang, Longyi Shao, Jason Hilton
PREMISE OF THE STUDY: Noeggerathiales are an extinct group of heterosporous shrubs and trees that were widespread and diverse during the Pennsylvanian-Permian Epochs (323-252 Ma) but are of controversial taxonomic affinity. Groups proposed as close relatives include leptosporangiate ferns, sphenopsids, progymnosperms, or the extant eusporangiate fern Tmesipteris. Previously identified noeggerathialeans lacked anatomical preservation, limiting taxonomic comparisons to their external morphology and spore structure...
January 6, 2017: American Journal of Botany
https://www.readbyqxmd.com/read/28060072/zone-i-of-tear-microdesiccates-is-a-lipid-containing-structure
#10
Felipe Traipe, Leonidas Traipe, Daniela Salinas-Toro, Daniela López, Felipe Valenzuela, Claudio Pérez, Cristian Cartes, Francisca Zuazo, Patricia Varela, Héctor Toledo-Araya, Remigio López-Solís
PURPOSE: Morphological features of tear microdesiccates on glass surfaces have been associated with tear fluid status. Tear-film lipids play a critical role in the pathophysiology of some ocular surface disorders. Tear microdesiccates display 4 distinctive morphological domains (zones I, II, III, and transition band). In this study, we investigated the lipid location in tear microdesiccates. METHODS: Tear from individual healthy eyes (assessed by symptoms, signs, and slit-lamp examination) was collected using absorbing minisponges...
February 2017: Cornea
https://www.readbyqxmd.com/read/28057327/occurrence-of-brassinosteroids-in-non-flowering-land-plants-liverwort-moss-lycophyte-and-fern
#11
Takao Yokota, Toshiyuki Ohnishi, Kyomi Shibata, Masashi Asahina, Takahito Nomura, Tomomichi Fujita, Kimitsune Ishizaki, Takayuki Kohchi
Endogenous brassinosteroids (BRs) in non-flowering land plants were analyzed. BRs were found in a liverwort (Marchantia polymorpha), a moss (Physcomitrella patens), lycophytes (Selaginella moellendorffii and S. uncinata) and 13 fern species. A biologically active BR, castasterone (CS), was identified in most of these non-flowering plants but another biologically active BR, brassinolide, was not. It may be distinctive that levels of CS in non-flowering plants were orders of magnitude lower than those in flowering plants...
January 2, 2017: Phytochemistry
https://www.readbyqxmd.com/read/28054937/impact-of-probiotic-administration-on-serum-c-reactive-protein-concentrations-systematic-review-and-meta-analysis-of-randomized-control-trials
#12
REVIEW
Mohsen Mazidi, Peyman Rezaie, Gordon A Ferns, Hassan Vatanparast
We conducted this systematic review and meta-analysis of prospective studies to determine the effect of probiotic administration on serum C-reactive protein (CRP) concentrations. We searched PubMed-Medline, Web of Science, the Cochrane, and Google Scholar databases (until May 2016) to identify prospective studies evaluating the impact of probiotic administration on CRP. We used a random effects models and generic inverse variance methods to synthesize quantitative data, followed by a leave-one-out method for sensitivity analysis...
January 3, 2017: Nutrients
https://www.readbyqxmd.com/read/28054914/detailed-audiological-evaluation-of-a-patient-with-xeroderma-pigmentosum-with-neural-degeneration
#13
Danielle Mercer, Annette Hurley, Fern Tsien
BACKGROUND: Xeroderma pigmentosum (XP) is a rare autosomal recessive condition characterized by extreme sensitivity to ultraviolet light. Individuals with XP lack the ability to repair DNA (deoxyribonucleic acid) damage caused by ultraviolet radiation, leading to sunburn and increased susceptibility to skin cancers. Approximately 25% of patients also exhibit neural degeneration, which includes progressive mental deterioration, cortical thinning, and sensorineural hearing loss. PURPOSE: Herein, we describe the audiological and genetic findings in a patient with XP subtype D with neural degeneration and hearing loss...
January 2017: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/28053005/two-step-functional-innovation-of-the-stem-cell-factors-wus-wox5-during-plant-evolution
#14
Yuzhou Zhang, Yue Jiao, Hengwu Jiao, Huabin Zhao, Yu-Xian Zhu
WUS and WOX5, which are expressed, respectively, in the organizing center (OC) and the quiescent center (QC), are essential for shoot/root apical stem-cell maintenance in flowering plants. However, little is known about how these stem-cell factors evolved their functions in flowering plants. Here, we show that the WUS/WOX5 proteins acquired two distinct capabilities by a two-step functional innovation process in the course of plant evolution. The first-step is the apical stem-cell maintenance activity of WUS/WOX5, which originated in the common ancestor of ferns and seed plants, as evidenced by the interspecies complementation experiments, showing that ectopic expression of fern Ceratopteris richardii WUS-like (CrWUL) surrounding OC/QC, or exclusive OC-/QC-expressed gymnosperms/angiosperms WUS/WOX5 in Arabidopsis wus-1 and wox5-1 mutants, could rescue their phenotypes...
January 4, 2017: Molecular Biology and Evolution
https://www.readbyqxmd.com/read/28050681/detection-of-chlorophylls-in-spores-of-seven-ferns
#15
Mei-Hwei Tseng, Kuei-Huei Lin, Yi-Jia Huang, Ya-Lan Chang, Sheng-Cih Huang, Li-Yaung Kuo, Yao-Moan Huang
Fern spores were traditionally classified into chlorophyllous (green) and nonchlorophyllous (nongreen) types based on the color visible to the naked eye. Recently, a third type, "cryptochlorophyllous spores", is recognized, and these spores are nongreen under white light but contain chlorophylls. Epifluorescence microscopy was previously used to detect chlorophylls in cryptochlorophyllous spores. In addition to epifluorescence microscopy, current study performed some other approaches, including spore-squash epifluorescence, absorption spectra, laser-induced fluorescence emission spectra, thin layer chromatography (TLC), and ultra-high performance liquid chromatography with ultraviolet and mass spectrometric detection (UHPLC-UV-MS) in order to detect chlorophylls of spores of seven ferns (Sphaeropteris lepifera, Ceratopteris thalictroides, Leptochilus wrightii, Leptochilus pothifolius, Lepidomicrosorum buergerianum, Osmunda banksiifolia, and Platycerium grande)...
January 3, 2017: Journal of Plant Research
https://www.readbyqxmd.com/read/28049040/phylogeny-of-the-fern-subfamily-pteridoideae-pteridaceae-pteridophyta-with-the-description-of-a-new-genus-gastoniella
#16
Liang Zhang, Xin-Mao Zhou, Ngan Thi Lu, Li-Bing Zhang
As the second most genera-rich fern family, Pteridaceae contain more than 1000 species contributing to ca. 10% of extant leptosporangiate fern diversity. The subfamily Pteridoideae is one of the five subfamilies often recognized. The circumscription of Pteridoideae has not been clear. A large number of species have not yet been included in any molecular analyses before. In this study, DNA sequences of six plastid loci of 154 accessions representing ca. 87 species in 14 genera of Pteridaceae subfam. Pteridoideae and four accessions representing two species in subfam...
December 31, 2016: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/28042891/screening-tools-for-identification-of-elder-abuse-a-systematic-review
#17
REVIEW
Chiara Gallione, Alberto Dal Molin, FabioV B Cristina, Hilary Ferns, Mark Mattioli, Barbara Suardi
BACKGROUND: The mistreatment of older people represents a widespread problem, with exponential growth risk, especially considering the progressive ageing of the world population. It could have serious consequences for the victim's health if not recognised early, denounced and stopped. Abuse is often undetected by service providers because there is a lack of awareness surrounding the magnitude of the problem. Education and formal training in the signs of abuse are also generally poorly developed, as are reporting procedures which would lead to further investigation...
January 2, 2017: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/28027683/adjustment-modes-in-the-trajectory-of-progressive-multiple-sclerosis-a-qualitative-study-and-conceptual-model
#18
Angeliki Bogosian, Myfanwy Morgan, Felicity L Bishop, Fern Day, Rona Moss-Morris
OBJECTIVE: We examined cognitive and behavioural challenges and adaptations for people with progressive multiple sclerosis (MS) and developed a preliminary conceptual model of changes in adjustment over time. DESIGN: Using theoretical sampling, 34 semi-structured interviews were conducted with people with MS. Participants were between 41 and 77 years of age. Thirteen were diagnosed with primary progressive MS and 21 with secondary progressive MS. Data were analysed using a grounded theory approach...
December 27, 2016: Psychology & Health
https://www.readbyqxmd.com/read/28012123/not-only-in-the-temperate-zone-independent-gametophytes-of-two-vittarioid-ferns-pteridaceae-polypodiales-in-east-asian-subtropics
#19
Li-Yaung Kuo, Cheng-Wei Chen, Wataru Shinohara, Atsushi Ebihara, Hiroshi Kudoh, Hirotoshi Sato, Yao-Moan Huang, Wen-Liang Chiou
Independent gametophyte ferns are unique among vascular plants because they are sporophyteless and reproduce asexually to maintain their populations in the gametophyte generation. Such ferns had been primarily discovered in temperate zone, and usually hypothesized with (sub)tropical origins and subsequent extinction of sporophyte due to climate change during glaciations. Presumably, independent fern gametophytes are unlikely to be distributed in tropics and subtropics because of relatively stable climates which are less affected by glaciations...
December 23, 2016: Journal of Plant Research
https://www.readbyqxmd.com/read/28009873/the-first-of-the-viscoceuticals-a-shear-thickening-gum-induces-gastric-satiety-in-rats
#20
M S M Wee, R G Lentle, K K T Goh, L Matia-Merino
We examined the effect of gavage of 4 ml of a viscous shear-thickening polysaccharide solution (15% w/w) extracted from the fronds of the mamaku tree fern (Cythea medullaris) in reducing appetite and delaying gastric emptying in twenty six Sprague Dawley rats. After two weeks habituation to a pelleted chow, the rats were gavaged on alternate days with either the mamaku extract or with the same volume of deionised water for a total of five times over a period of two weeks. The body mass and food intake of each rat were determined daily and the weights of their stomach contents determined on euthanasia two hours after the final gavage...
December 22, 2016: Food & Function
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