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https://www.readbyqxmd.com/read/29049986/new-diagnostic-criteria-of-polycystic-ovarian-morphology-for-adolescents-impact-on-prevalence-and-hormonal-profile
#1
Paulina M Merino, Claudio Villarroel, Cristián Jesam, Patricia López, Ethel Codner
BACKGROUND: The ultrasonographic criteria used to identify polycystic ovarian morphology (PCOM) during adolescence have changed over time. Recently, a Worldwide Pediatric Consensus (PedC) defined PCOM using stricter criteria than the previous recommendations of the Rotterdam Consensus (RC) and Androgen Excess-Polycystic Ovarian Syndrome Society (AES/PCOS) criteria. The aim of this study was to determine the prevalence of PCOM in healthy adolescents according to the 3 reported diagnostic criteria and compare the hormonal profile in females with and without PCOM based on the PedC criteria...
October 19, 2017: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/29049148/skull-base-neuroendoscopic-training-model-using-a-fibrous-injectable-tumor-polymer-and-the-nico-myriad
#2
Filippo Gagliardi, Anthony M Chau, Pietro Mortini, Anthony J Caputy, Cristian Gragnaniello
The Myriad is an innovative, high precision tool for tumor resection, designed to work within narrow endoscopic corridors. Due to its application in technically demanding situations, the learning curve associated with its use might be extremely challenging and time-consuming.The authors describe the application of an already validated training model, the skull base injectable tumor model (ITM), to allow trainees to practice with the use of the Myriad during endoscopic skull base procedures.A formalin embalmed cadaveric head was used for technical assessment...
October 18, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29047573/microscanning-in-hadamard-spectroscopy
#3
Cristian Damian, Adrian Sima, Tiberius Vasile, Daniela Coltuc
Hadamard spectroscopy is a method of taking spectroscopic measurements suited to domains such as far infrared, where the sensor noise is dominant. Unfortunately, the signal-to-noise ratio of such a system scales poorly with the resolution. In this paper, we analyze a technique called microscanning that attempts to solve this problem by combining several lower resolution "preview" spectra to form a higher resolution spectrum. We provide a theoretical analysis of the method concerning the noise reduction and blurring...
June 20, 2017: Applied Optics
https://www.readbyqxmd.com/read/29047144/mecom-hbs1l-myb-thrb-rarb-jak2-and-tert-polymorphisms-defining-the-genetic-predisposition-to-myeloproliferative-neoplasms-a-study-on-939-patients
#4
Adrian P Trifa, Claudia Bănescu, Anca S Bojan, Cristian M Voina, Ștefana Popa, Simona Vișan, Alina D Ciubean, Florin Tripon, Delia Dima, Viola M Popov, Ștefan C Vesa, Mihaela Andreescu, Tünde Török-Vistai, Romeo G Mihăilă, Nicoleta Berbec, Ioan Macarie, Andrei Coliță, Maria Iordache, Alina C Cătană, Marius F Farcaș, Ciprian Tomuleasa, Kinga Vasile, Cristina Truică, Adriana Todincă, Lavinia Pop-Muntean, Raluca Manolache, Horia Bumbea, Ana-Maria Vlădăreanu, Mihaela Gaman, Cristina M Ciufu, Radu A Popp
Polycythemia vera (PV), essential thrombocythemia (ET) and primary myelofibrosis (PMF) are classical myeloproliferative neoplasms (MPN), characterized by specific somatic mutations in JAK2, CALR or MPL genes. JAK2 46/1 and TERT rs2736100 polymorphisms are known to significantly predispose to MPN. This study aimed to establish the additional contribution of the recently described MECOM rs2201862, HBS1L-MYB rs9376092 and THRB-RARB rs4858647 polymorphisms to the occurrence of MPN. These three polymorphisms, along with JAK2 46/1 and TERT rs2736100 were genotyped in 939 MPN patients (454 with ET, 337 with PV and 148 with PMF) and 483 controls...
October 19, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/29047048/correction-to-omeprazole-absorption-and-fasting-gastrinemia-after-roux-en-y-gastric-bypass
#5
Renata V A Collares-Pelizaro, José S Santos, Carla B Nonino, Larissa Alves Dos Reis Dias, Cristiane M Gaitani, Wilson Salgado
Larissa Alves dos Reis Dias wasmistakenly included in the 13 acknowledgment section of this article, and was mistakenly.
October 18, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/29045709/joint-effect-of-physical-activity-and-sedentary-behaviour-on-cardiovascular-risk-factors-in-chilean-adults
#6
Carlos Cristi-Montero, Lewis Steell, Fanny Petermann, Alex Garrido-Méndez, Ximena Díaz-Martínez, Carlos Salas-Bravo, Rodrigo Ramirez-Campillo, Cristian Alvarez, Fernando Rodriguez, Nicolas Aguilar-Farias, Maria A Martinez, Ana M Leiva, Felipe Poblete-Valderrama, Naomi D Willis, Carlos A Celis-Morales
Background: To investigate the associations between combined categories of moderate-to-vigorous physical activity (MVPA) and sedentary behaviour (SB) with markers of adiposity and cardiovascular risk in adults. Methods: Overall, 5040 participants (mean age 46.4 years and 59.3% women) from the cross-sectional Chilean National Health Survey 2009-2010 were included in this study. MVPA and SB were measured using the Global Physical Activity questionnaire. Four categories were computed using MVPA- and SB-specific cut-offs ('High-SB & Active', 'Low-SB & Active', 'High-SB & Inactive' and 'Low-SB & Inactive')...
October 17, 2017: Journal of Public Health
https://www.readbyqxmd.com/read/29044326/in-vitro-antiparasitic-activity-and-chemical-composition-of-the-essential-oil-from-protium-ovatum-leaves-burceraceae
#7
Elisângela B B Estevam, Isabella P B DE Deus, Vanessa P DA Silva, Elizabeth A J DA Silva, Cassia C F Alves, José Milton Alves, Cristiane M Cazal, Lizandra G Magalhães, Mariana C Pagotti, Viviane R Esperandim, Alex F Souza, Mayker L D Miranda
Leishmaniasis and trypanosomiasis are globally widespread parasitic diseases which have been responsible for high mortality rates. Since drugs available for their treatment are highly hepatotoxic, nephrotoxic and cardiotoxic, adherence to therapy has been affected. Thus, the search for new, more effective and safer drugs for the treatment of these diseases is necessary. Natural products have stood out as an alternative to searching for new bioactive molecules with therapeutic potential. In this study, the chemical composition and antiparasitic activity of the essential oil from Protium ovatum leaves against trypomastigote forms of Trypanosoma cruzi and the promastigote forms of Leishmania amazonensis were evaluated...
October 16, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/29042581/immunoproteasome-subunit-%C3%A3-5i-lmp7-deficiency-in-atherosclerosis
#8
Bernd Hewing, Antje Ludwig, Cristian Dan, Max Pötzsch, Carmen Hannemann, Andreas Petry, Dilyara Lauer, Agnes Görlach, Elena Kaschina, Dominik N Müller, Gert Baumann, Verena Stangl, Karl Stangl, Nicola Wilck
Management of protein homeostasis by the ubiquitin-proteasome system is critical for atherosclerosis development. Recent studies showed controversial results on the role of immunoproteasome (IP) subunit β5i/LMP7 in maintenance of protein homeostasis under cytokine induced oxidative stress. The present study aimed to investigate the effect of β5i/LMP7-deficiency on the initiation and progression of atherosclerosis as a chronic inflammatory, immune cell driven disease. LDLR(-/-)LMP7(-/-) and LDLR(-/-) mice were fed a Western-type diet for either 6 or 24 weeks to induce early and advanced stage atherosclerosis, respectively...
October 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29040718/the-mcconnell-s-capsular-arteries-and-their-relevance-in-endoscopic-endonasal-approach-to-the-sellar-region
#9
Cristian Ferrareze Nunes, André Beer-Furlan, Francesco Doglietto, Ricardo Luis Carrau, Daniel Monte-Serrat Prevedello
BACKGROUND: The McConnell's capsular arteries (MCCA) were first described in 1953. They consist of medial branches of the cavernous internal carotid artery (ICA) and are divided in anterior and inferior capsular arteries. OBJECTIVE: To highlight the anatomy of the MCCA and its importance in the surgical treatment of tuberculum sellae and planum sphenoidale tumors through an endoscopic endonasal approach. METHODS: Ten cadaveric specimens fixed in formalin and perfused with colored silicone were dissected...
October 13, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29039747/development-of-useful-biomaterial-for-bone-tissue-engineering-by-incorporating-nano-copper-zinc-alloy-ncuzn-in-chitosan-gelatin-nano-hydroxyapatite-ch-g-nhap-scaffold
#10
Juan Carlos Forero, Eduardo Roa, Juan G Reyes, Cristian Acevedo, Nelson Osses
Ceramic and metallic nanoparticles can improve the mechanical and biological properties of polymeric scaffolds for bone tissue engineering (BTE). In this work, nanohydroxyapatite (nHAp) and nano-copper-zinc alloy (nCuZn) were added to a chitosan/gelatin (Ch/G) scaffold in order to investigate the effects on morphological, physical, and biocompatibility properties. Scaffolds were fabricated by a freeze-drying technique using different pre-freezing temperatures. Microstructure and morphology were studied by scanning electron microscopy (SEM), glass transition (Tg) was studied using differential scanning calorimetry (DSC), cell growth was estimated by MTT assay, and biocompatibility was examined in vitro and in vivo by histochemistry analyses...
October 17, 2017: Materials
https://www.readbyqxmd.com/read/29038520/decrypting-strong-and-weak-single-walled-carbon-nanotubes-interactions-with-mitochondrial-voltage-dependent-anion-channels-using-molecular-docking-and-perturbation-theory
#11
Michael González-Durruthy, Adriano V Werhli, Vinicius Seus, Karina S Machado, Alejandro Pazos, Cristian R Munteanu, Humberto González-Díaz, José M Monserrat
The current molecular docking study provided the Free Energy of Binding (FEB) for the interaction (nanotoxicity) between VDAC mitochondrial channels of three species (VDAC1-Mus musculus, VDAC1-Homo sapiens, VDAC2-Danio rerio) with SWCNT-H, SWCNT-OH, SWCNT-COOH carbon nanotubes. The general results showed that the FEB values were statistically more negative (p < 0.05) in the following order: (SWCNT-VDAC2-Danio rerio) > (SWCNT-VDAC1-Mus musculus) > (SWCNT-VDAC1-Homo sapiens) > (ATP-VDAC)...
October 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29037915/linalool-rich-essential-oils-from-the-amazon-display-antidepressant-type-effect-in-rodents
#12
Éverton Renan Q Dos Santos, Cristiane Socorro F Maia, Enéas A Fontes Junior, Ademar S Melo, Bruno G Pinheiro, José Guilherme S Maia
ETHNOPHARMACOLOGICAL RELEVANCE: The essential oils of the leaves of Aniba rosaeodora (pau-rosa), Aniba parviflora (macacaporanga) and Aeollanthus suaveolens (catinga-de-mulata), rich in linalool, are used in the traditional medicine of the Brazilian Amazon for its effects on the central nervous system, such as sedative, anticonvulsant and antidepressant, among other therapeutic properties. AIM OF THE STUDY: To analyze the chemical composition of these oils and to evaluate their neurobehavioral effects in rodents, based on different and established behavioral tests...
October 13, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29037370/modeling-warming-predicts-a-physiological-threshold-for-the-extinction-of-the-living-fossil-frog-calyptocephalella-gayi
#13
Marcela A Vidal, Francisco Novoa-Muñoz, Enrique Werner, Cristian Torres, Ricardo Nova
Global climate change will have a greater impact on ectotherms in tropical and subtropical communities than at higher latitudes, because ambient temperatures are closer to the upper thermal limits of species. Amphibian species are highly dependent on external weather conditions, and the effect of global warming on these has been evaluated recently. The Great Chilean frog (Calyptocephalella gayi) is an endemic, monotypic species and genus whose conservation status is considered Vulnerable because of high extraction pressure for human consumption, lack of regulatory measures and comprehension by its consumers...
October 2017: Journal of Thermal Biology
https://www.readbyqxmd.com/read/29037322/improvement-of-nailfold-capillary-microangiopathy-after-immunosuppressant-therapy-in-a-child-with-clinically-amyopathic-juvenile-dermatomyositis
#14
Lúcia Maria Arruda Campos, Adriana M E Sallum, Cintia Z Camargo, Luís Eduardo C Andrade, Cristiane Kayser
No abstract text is available yet for this article.
September 2017: Revista Brasileira de Reumatologia
https://www.readbyqxmd.com/read/29037207/trem2-deficiency-exacerbates-tau-pathology-through-dysregulated-kinase-signaling-in-a-mouse-model-of-tauopathy
#15
Shane M Bemiller, Tyler J McCray, Kevin Allan, Shane V Formica, Guixiang Xu, Gina Wilson, Olga N Kokiko-Cochran, Samuel D Crish, Cristian A Lasagna-Reeves, Richard M Ransohoff, Gary E Landreth, Bruce T Lamb
BACKGROUND: Genetic variants of the Triggering Receptor Expressed on Myeloid Cells-2 (TREM2) confer increased risk of developing late-onset Alzheimer's Disease (LOAD) and other neurodegenerative disorders. Recent studies provided insight into the multifaceted roles of TREM2 in regulating extracellular β-amyloid (Aβ) pathology, myeloid cell accumulation, and inflammation observed in AD, yet little is known regarding the role of TREM2 in regulating intracellular microtubule associated protein tau (MAPT; tau) pathology in neurodegenerative diseases and in AD, in particular...
October 16, 2017: Molecular Neurodegeneration
https://www.readbyqxmd.com/read/29037189/methodological-study-to-evaluate-the-psychometric-properties-of-facit-cd-in-a-sample-of-brazilian-women-with-cervical-intraepithelial-neoplasia
#16
Cristiane Menezes Sirna Fregnani, José Humberto Tavares Guerreiro Fregnani, Adhemar Longatto-Filho
BACKGROUND: The occurrence of cervical intraepithelial neoplasia (CIN) is associated with changes in health-related quality of life, including psychological factors, such as fear and shame, and changes in sexuality and sexual satisfaction, such as decreased sexual desire and frequency of sexual intercourse. Personal relationships are the most affected because CIN is sexually transmitted and many women tend to blame their partner for disease transmission. The aim of this study was to evaluate the psychometric properties of the FACIT-CD questionnaire in Brazilian women diagnosed with CIN...
October 16, 2017: BMC Cancer
https://www.readbyqxmd.com/read/29036178/substantial-population-structure-of-plasmodium-vivax-in-thailand-facilitates-identification-of-the-sources-of-residual-transmission
#17
Veerayuth Kittichai, Cristian Koepfli, Wang Nguitragool, Jetsumon Sattabongkot, Liwang Cui
BACKGROUND: Plasmodium vivax transmission in Thailand has been substantially reduced over the past 10 years, yet it remains highly endemic along international borders. Understanding the genetic relationship of residual parasite populations can help track the origins of the parasites that are reintroduced into malaria-free regions within the country. METHODOLOGY/RESULTS: A total of 127 P. vivax isolates were genotyped from two western provinces (Tak and Kanchanaburi) and one eastern province (Ubon Ratchathani) of Thailand using 10 microsatellite markers...
October 16, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29036126/general-refraction-problems-with-phase-discontinuities-on-nonflat-metasurfaces
#18
Cristian E Gutiérrez, Luca Pallucchini, Eric Stachura
This paper provides a mathematical approach to study metasurfaces in nonflat geometries. Analytical conditions between the curvature of the surface and the set of refracted directions are introduced to guarantee the existence of phase discontinuities. The approach contains both the near and far field cases. A starting point is the formulation of a vector Snell's law in the presence of abrupt discontinuities on the interfaces.
July 1, 2017: Journal of the Optical Society of America. A, Optics, Image Science, and Vision
https://www.readbyqxmd.com/read/29035830/hypolipemiant-and-antioxidant-effects-of-eugenia-brasiliensis-in-an-animal-model-of-coconut-oil-induced-hypertriglyceridemia
#19
Aline Barbosa Lima, Daniela Delwing-de Lima, Mariana Ramos Vieira, Marina Zordan Poletto, Débora Delwing-Dal Magro, Sara Cristiane Barauna, Michele Debiasi Alberton, Eduardo Manoel Pereira, Nariana Regina Pereira, Eloise Mariane Salamaia, Diogo Alexandre Siebert
We investigated the effects of chronic administration of crude hydroalcoholic extract (CHE) and crude acetone extract (CAE) obtained from leaves of Eugenia brasiliensis species on hypertriglyceridemia and oxidative stress caused by the chronic administration of coconut oil. Rats received CHE or CAE (50, 100 or 150mg/kg, orally) for 30days, plus coconut oil (2mL, orally) or saline for 15th. Triglyceride levels, liver cell lipid accumulation, thiobarbituric acid reactive substances (TBA-RS), total sulfhydryl content and the activities of antioxidant enzymes catalase (CAT), superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) were evaluated in the blood and liver of rats...
October 13, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29035450/imbalance-between-matrix-metalloproteinases-and-tissue-inhibitors-of-metalloproteinases-promotes-invasion-and-metastasis-of-head-and-neck-squamous-cell-carcinoma
#20
Adina E Stanciu, Adina Zamfir-Chiru-Anton, Marcel M Stanciu, Cristian R Popescu, Dan C Gheorghe
BACKGROUND: The balance between collagenolysis and its inhibition is critical during extracellular matrix remodeling in head and neck squamous cell carcinoma (HNSCC). An imbalance between matrix metalloproteinases (MMPs) and their tissue inhibitors (TIMPs) plays a critical role in the development of tumor cell invasion and metastasis. The purpose of the study was to determine MMP-9/TIMP-1 and MMP-2/TIMP-2 ratios in the sera of patients with HNSCC in relation to clinicopathological parameters...
October 1, 2017: Clinical Laboratory
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