keyword
MENU ▼
Read by QxMD icon Read
search

Gigantism

keyword
https://www.readbyqxmd.com/read/27907121/environmental-and-geographical-factors-structure-soil-microbial-diversity-in-new-caledonian-ultramafic-substrates-a-metagenomic-approach
#1
Véronique Gourmelon, Laurent Maggia, Jeff R Powell, Sarah Gigante, Sara Hortal, Claire Gueunier, Kelly Letellier, Fabian Carriconde
Soil microorganisms play key roles in ecosystem functioning and are known to be influenced by biotic and abiotic factors, such as plant cover or edaphic parameters. New Caledonia, a biodiversity hotspot located in the southwest Pacific, is one-third covered by ultramafic substrates. These types of soils are notably characterised by low nutrient content and high heavy metal concentrations. Ultramafic outcrops harbour diverse vegetation types and remarkable plant diversity. In this study, we aimed to assess soil bacterial and fungal diversity in New Caledonian ultramafic substrates and to determine whether floristic composition, edaphic parameters and geographical factors affect this microbial diversity...
2016: PloS One
https://www.readbyqxmd.com/read/27901241/cardiovascular-risk-factors-associated-with-frailty-syndrome-among-hospitalized-elderly-people-a-cross-sectional-study
#2
Darlene Mara Dos Santos Tavares, Camila Gigante Colamego, Maycon Sousa Pegorari, Pollyana Cristina Dos Santos Ferreira, Flávia Aparecida Dias, Alisson Fernandes Bolina
CONTEXT AND OBJECTIVE: Identification of frailty syndrome and its relationship with cardiovascular risk factors among hospitalized elderly people is important, since this may contribute towards broadening of knowledge regarding this association within tertiary-level services. This study aimed to evaluate the cardiovascular risk factors associated with frailty syndrome among hospitalized elderly people. DESIGN AND SETTING: Observational cross-sectional study in a public teaching hospital...
September 2016: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/27900313/semitendinosus-and-gracilis-free-muscle-tendon-graft-for-repair-of-massive-rotator-cuff-tears-surgical-technique
#3
Antonio Gigante, Carlo Bottegoni, Giuseppe Milano, Michele Riccio, Luca Dei Giudici
Massive rotator cuff tears are difficult to treat surgically due to retraction, degeneration and fraying of the ends of torn tendons, severe fatty infiltration and atrophy of the respective muscles. Procedures developed to close the gap between the rotator cuff and the greater tuberosity of the humerus, such as soft tissue release may be inadequate for large tears. Human or porcine dermal allografts still have uncertain benefits, and tendon transfers seem to be associated with poor outcomes, donor site morbidity and altered mechanics...
July 2016: Joints
https://www.readbyqxmd.com/read/27881486/lysine-63-ubiquitination-is-involved-in-the-progression-of-tubular-damage-in-diabetic-nephropathy
#4
Paola Pontrelli, Francesca Conserva, Massimo Papale, Annarita Oranger, Mariagrazia Barozzino, Grazia Vocino, Maria Teresa Rocchetti, Margherita Gigante, Giuseppe Castellano, Michele Rossini, Simona Simone, Luigi Laviola, Francesco Giorgino, Giuseppe Grandaliano, Salvatore Di Paolo, Loreto Gesualdo
The purpose of our study was to evaluate how hyperglycemia (HG) influences Lys63 protein ubiquitination and its involvement in tubular damage and fibrosis in diabetic nephropathy (DN). Gene and protein expression of UBE2v1, a ubiquitin-conjugating E2-enzyme variant that mediates Lys63-linked ubiquitination, and Lys63-ubiquitinated proteins increased in HK2 tubular cells under HG. Matrix-assisted laser desorption/ionization-time of flight/tandem mass spectrometry identified 30 Lys63-ubiquitinated proteins, mainly involved in cellular organization, such as β-actin, whose Lys63 ubiquitination increased under HG, leading to cytoskeleton disorganization...
October 24, 2016: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/27862812/tuning-nonlinear-optical-properties-by-diradical-and-charge-transfer-characters-of-chichibabin-s-hydrocarbon-derivatives
#5
Kotaro Fukuda, Yuta Suzuki, Hiroshi Matsui, Takanori Nagami, Yasutaka Kitagawa, Benoît Champagne, Kenji Kamada, Yohsuke Yamamoto, Masayoshi Nakano
Heteroatomic derivatives of Chichibabin's hydrocarbon are theoretically explored to highlight the relationship between the electronic structure and nonlinear optical (NLO) property. The result shows that the systems are divided into two classes: the one that has intermediate electronic structure between two mainly contributing resonance structures, and the other whose electronic structure is approximated by only one resonance structure. It is found that the former class of derivatives is revealed to exhibit about one-order larger static second hyperpolarizability (γ) than the other class either owing to their intermediate diradical or CT characters...
November 10, 2016: Chemphyschem: a European Journal of Chemical Physics and Physical Chemistry
https://www.readbyqxmd.com/read/27861781/digest-salamanders-slow-slither-into-genomic-gigantism
#6
Steven Dodsworth, Maïté Guignard, Oriane Hidalgo, Jaume Pellicer
Genome size varies enormously across the eukaryotic tree of life (c. 66,000-fold), with the largest reported nuclear genomes found in vertebrates (e.g. salamanders, lungfish) and angiosperms (e.g. mistletoe, fritillaries). Yet despite this huge diversity, most genomes are considerably smaller than the largest reported (c. 150 Gb), with the mean size of both vertebrate and plant genomes being similar, c. 5 Gb. This article is protected by copyright. All rights reserved.
November 12, 2016: Evolution; International Journal of Organic Evolution
https://www.readbyqxmd.com/read/27853138/seafloor-observations-indicate-spatial-separation-of-coseismic-and-postseismic-slips-in-the-2011-tohoku-earthquake
#7
Takeshi Iinuma, Ryota Hino, Naoki Uchida, Wataru Nakamura, Motoyuki Kido, Yukihito Osada, Satoshi Miura
Large interplate earthquakes are often followed by postseismic slip that is considered to occur in areas surrounding the coseismic ruptures. Such spatial separation is expected from the difference in frictional and material properties in and around the faults. However, even though the 2011 Tohoku Earthquake ruptured a vast area on the plate interface, the estimation of high-resolution slip is usually difficult because of the lack of seafloor geodetic data. Here using the seafloor and terrestrial geodetic data, we investigated the postseismic slip to examine whether it was spatially separated with the coseismic slip by applying a comprehensive finite-element method model to subtract the viscoelastic components from the observed postseismic displacements...
November 17, 2016: Nature Communications
https://www.readbyqxmd.com/read/27812777/acromegaly-clinical-features-at-diagnosis
#8
REVIEW
Lucio Vilar, Clarice Freitas Vilar, Ruy Lyra, Raissa Lyra, Luciana A Naves
BACKGROUND: Acromegaly is a rare and underdiagnosed disorder caused, in more than 95% of cases, by a growth hormone (GH)-secreting pituitary adenoma. The GH hypersecretion leads to overproduction of insulin-like growth factor 1 (IGF-1) which results in a multisystem disease characterized by somatic overgrowth, multiple comorbidities, physical disfigurement, and increased mortality. OBJECTIVE: This article aims to review the clinical features of acromegaly at diagnosis...
November 3, 2016: Pituitary
https://www.readbyqxmd.com/read/27807495/giant-mediastinal-germ-cell-tumour-an-enigma-of-surgical-consideration
#9
Firdaus Hayati, Nurayub Mohd Ali, Levin Kesu Belani, Nornazirah Azizan, Andee Dzulkarnaen Zakaria, Mohd Ramzisham Abdul Rahman
We present a case of 16-year-old male, who was referred from private centre for dyspnoea, fatigue, and orthopnea. The chest radiograph revealed complete opacification of left chest which was confirmed by computed tomography as a large left mediastinal mass measuring 14 × 15 × 18 cm. The diagnostic needle core biopsy revealed mixed germ cell tumour with possible combination of embryonal carcinoma, yolk sac, and teratoma. After 4 cycles of neoadjuvant BEP regime, there was initial response of tumour markers but not tumour bulk...
2016: Case Reports in Surgery
https://www.readbyqxmd.com/read/27770857/marine-microorganism-an-underexplored-source-of-l-asparaginase
#10
A A Prihanto, M Wakayama
l-Asparaginase (EC 3.5.1.1) is an enzyme that catalyzes the hydrolysis of l-asparagine to l-aspartic acid. This enzyme has an important role in medicine and food. l-Asparaginase is a potential drug in cancer therapy. Furthermore, it is also applied for reducing acrylamide, a carcinogenic compound in baked and fried foods. Until now, approved l-asparaginases for both applications are few due to their lack of appropriate properties. As a result, researchers have been enthusiastically seeking new sources of enzyme with better performance...
2016: Advances in Food and Nutrition Research
https://www.readbyqxmd.com/read/27759796/-trends-and-inequalities-in-risk-behaviors-among-adolescents-a-comparison-of-birth-cohorts-in-pelotas-rio-grande-do-sul-state-brazil
#11
Leidy Johanna Ocampo Arroyave, María Clara Restrepo-Méndez, Bernardo Lessa Horta, Ana Maria Baptista Menezes, Denise Petrucci Gigante, Helen Gonçalves
This study focuses on trends and inequalities in health risk behaviors among adolescents. A cross-sectional study compared two birth cohorts in the city of Pelotas, Rio Grande do Sul State, Brazil. The sample included 1,281 adolescents from the 1982 cohort and 4,106 from the 1993 cohort, followed in 2001 and 2011, respectively. The study recorded alcohol intake, illegal drug use, smoking, sexual initiation < 16 years, lack of condom use, and multiple sex partners. Total prevalence rates were calculated for each cohort, stratified by gender and per capita income, besides absolute and relative measures of inequality...
October 10, 2016: Cadernos de Saúde Pública
https://www.readbyqxmd.com/read/27759072/interactions-between-lifestyle-and-mthfr-polymorphisms-on-homocysteine-concentrations-in-young-adults-belonging-to-the-1982-pelotas-birth-cohort
#12
I O Oliveira, L P Silva, M C Borges, O M Cruz, J W Tessmann, J V S Motta, F K Seixas, B L Horta, D P Gigante
BACKGROUND/OBJECTIVES: Homocysteine (Hcy) is a key intermediate in methionine metabolism. A high plasma concentration of Hcy is an independent risk factor for cardiovascular diseases among other determinants. In this study, we aimed to investigate the interactions between methylenetetrahydrofolate reductase enzyme gene (MTHFR) polymorphisms and lifestyle variables (smoking, alcohol intake and physical activity) on Hcy concentrations in a young Brazilian population. SUBJECTS/METHODS: The study population comprised 3803 individuals from the Pelotas Birth Cohort, aged 22-23 years...
October 19, 2016: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/27758851/multimodality-approach-in-the-diagnosis-and-management-of-bilateral-giant-juvenile-breast-fibroadenoma
#13
Noora Rafeek, Rajeswaran Rangasami, Kamakshi Dhanraj, Santhosh Joseph
Juvenile giant fibroadenoma is a very rare breast disease affecting young girls of premenarche and adolescent ages. It is a benign fibroepithelial tumour characterised by stromal and epithelial proliferation that causes rapidly growing breast mass. Bilateral symmetrical involvement is extremely rare. In this article, we describe this entity in a girl aged 13 years who presented with bilateral gigantically enlarged breasts. Ultrasonography and MRI showed large, multilobulated masses involving both breasts entirely...
October 6, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27743704/gigantism-x-linked-acrogigantism-and-gpr101-mutations
#14
Donato Iacovazzo, Márta Korbonits
X-linked acrogigantism (XLAG) is a recently identified condition of early-onset GH excess resulting from the germline or somatic duplication of the GPR101 gene on chromosome Xq26.3. Thirty patients have been formally reported so far. The disease affects mostly females, occurs usually sporadically, and is characterised by early onset and marked overgrowth. Most patients present with concomitant hyperprolactinaemia. Histopathology shows pituitary hyperplasia or pituitary adenoma with or without associated hyperplasia...
September 29, 2016: Growth Hormone & IGF Research
https://www.readbyqxmd.com/read/27742789/novel-genetic-causes-of-pituitary-adenomas
#15
Francisca Caimari, Márta Korbonits
Recently, a number of novel genetic alterations have been identified that predispose individuals to pituitary adenomas. Clinically relevant pituitary adenomas are relatively common, present in 0.1% of the general population. They are mostly benign monoclonal neoplasms that arise from any of the five hormone-secreting cell types of the anterior lobe of the pituitary gland, and cause disease due to hormonal alterations and local space-occupying effects. The pathomechanism of pituitary adenomas includes alterations in cell-cycle regulation and growth factor signaling, which are mostly due to epigenetic changes; somatic and especially germline mutations occur more rarely...
October 15, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/27728208/a-rare-case-of-acro-gigantism
#16
Khushboo, Y Singh
No abstract text is available yet for this article.
January 2016: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/27717969/multiple-origins-of-gigantism-in-stem-baleen-whales
#17
Cheng-Hsiu Tsai, Naoki Kohno
Living baleen whales (Mysticeti) include the world's largest animals to have ever lived-blue whales (Balaenoptera musculus) can reach more than 30 m. However, the gigantism in baleen whales remains little explored. Here, we compiled all published stem mysticetes from the Eocene and Oligocene and then mapped the estimated body size onto different phylogenies that suggest distinct evolutionary histories of baleen whales. By assembling all known stem baleen whales, we present three novel findings in early mysticete evolution...
December 2016: Die Naturwissenschaften
https://www.readbyqxmd.com/read/27716558/early-pre-occlusive-bilateral-renal-artery-stenosis-after-renal-denervation
#18
Rosario Cianci, Biagio Barbano, Antonietta Gigante, Edoardo Rosato, Alvaro Zaccaria, Nicola Mangialardi
No abstract text is available yet for this article.
September 30, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27714793/genetic-drift-and-mutational-hazard-in-the-evolution-of-salamander-genomic-gigantism
#19
Erik Roger Mohlhenrich, Rachel Lockridge Mueller
Salamanders have the largest nuclear genomes among tetrapods and, excepting lungfishes, among vertebrates as a whole. Lynch and Conery (2003) have proposed the mutational-hazard hypothesis to explain variation in genome size and complexity. Under this hypothesis, noncoding DNA imposes a selective cost by increasing the target for degenerative mutations (i.e., the mutational hazard). Expansion of noncoding DNA, and thus genome size, is driven by increased levels of genetic drift and/or decreased mutation rates; the former determines the efficiency with which purifying selection can remove excess DNA, whereas the latter determines the level of mutational hazard...
October 7, 2016: Evolution; International Journal of Organic Evolution
https://www.readbyqxmd.com/read/27706438/-social-impact-of-literacy-in-the-household-analysis-of-the-association-with-smoking-in-illiterate-co-residents-in-brazil
#20
Felipe Garcia Ribeiro, André Carraro, Janaína Vieira Dos Santos Motta, Denise Petrucci Gigante
Objective To investigate the social impact of literacy on the smoking behavior of illiterate individuals who share the household with literate individuals. Method This cross-sectional study employed data from the 2008 Brazilian National Household Survey (Pesquisa Nacional por Amostra de Domicílios, PNAD). Smokers were defined as individuals reporting use of any tobacco product daily or less than daily. The literacy profiles of residents were identified. Poisson regressions adjusted for skin color, age, and maximum level of literacy in the household were performed...
June 2016: Revista Panamericana de Salud Pública, Pan American Journal of Public Health
keyword
keyword
22384
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"