Publications by authors named "Carlos Felix"

Article Synopsis
  • In obstructive sleep apnoea (OSA), mandibular advancement devices (MADs) serve as effective, non-invasive alternatives to CPAP therapy, helping to reduce AHI scores and improve quality of life.
  • A study involving 103 OSA patients assessed the impact of mandibular torus and other cephalometric factors on the effectiveness of MAD treatment, finding that those with a mandibular torus responded better to the device.
  • The presence of a mandibular torus significantly increases the likelihood of successful MAD treatment by nearly three times, highlighting its value as an easy-to-assess predictor of treatment efficacy.
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Study Objectives: Mandibular advancement devices (MADs) constitute an alternative treatment in selected patients with OSA. A mandibular advanced position has been suggested to be beneficial, whereas its combination with an increased bite-raise may increase its adverse effects. The objective of this study was to assess upper airway (UA) volume and inspiratory pressure gradient variations in a group of 17 patients with OSA.

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Background: An evaluation is made of possible differences in treatment effects between labial and lingual fixed appliances.

Methods: A comprehensive search was made of the PubMed-Medline, Cochrane Library and LILACS databases, with an additional manual search covering the period up until April 2017. There were no restrictions in terms of year of publication or language.

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The plant cell wall is a source of fermentable sugars in second-generation bioethanol production. However, cellulosic biomass hydrolysis remains an obstacle to bioethanol production in an efficient and low-cost process. Clostridium thermocellum has been studied as a model organism able to produce enzymatic blends that efficiently degrade lignocellulosic biomass, and also as a fermentative microorganism in a consolidated process for the conversion of lignocellulose to bioethanol.

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The main goal of the present study was a complete proteomic characterization of total proteins eluted from residual substrate-bound proteins (RSBP), and cellulosomes secreted by Clostridium thermocellum B8 during growth in the presence of microcrystalline cellulose as a carbon source. The second goal was to evaluate their potential use as enzymatic blends for hydrolyzing agro-industrial residues to produce fermentable sugars. Protein identification through LC-MS/MS mass spectrometry showed that the RSBP sample, in addition to cellulosomal proteins, contains a wide variety of proteins, including those without a well-characterized role in plant cell wall degradation.

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Background: Statins are considered the most effective drugs used in the treatment of dyslipidemias. Some of their adverse effects are related to muscle problems. Myalgias produced by statins appear more often during exercise.

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Introduction: The aim of this systematic review was to assess the prevalence of adverse effects associated with lingual and buccal fixed orthodontic techniques.

Methods: Two authors searched the PubMed, EMBASE, Cochrane Library, and LILACS databases up to October 2014. Agreement between the authors was quantified by the Cohen kappa statistic.

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Periostin is an extracellular matrix protein highly expressed in collagen-rich tissues subjected to continuous mechanical stress. Functionally, periostin is involved in tissue remodeling and its altered function is associated to numerous pathological processes. In orthodontics, periostin plays key roles in the maintenance of dental tissues and it is mainly expressed in those areas where tension or pressing forces are taking place.

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Objectives: The aim of this study was to evaluate the incidence of bleeding complications after dental implant placement in patients in treatment by the oral anticoagulant dabigatran following a specific protocol.

Material And Methods: Seventy-one patients were divided into two groups: 29 had been taking dabigatran for over 6 months (150 mg orally every 12 h) before implant surgery (dabigatran group) and a control group consisting of 42 healthy subjects. Patients were treated in an outpatient setting.

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Introduction: Orthodontic anchorage is one of the most challenging aspects of Orthodontics. Preventing undesired movement of teeth could result in safer and less complicated orthodontic treatment. Recently, several reviews have been published about the effects of different molecules on bone physiology and the clinical side effects in Orthodontics.

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Background And Objectives: Anchorage is one of the most challenging sides in orthodontics. The use of biological modulators that inhibit osteoclasts could be a solution to address these problems and provide new adjunctive approaches. The aim of this study was to assess the effectiveness of recombinant osteoprotegerin fusion protein (OPG-Fc) in orthodontic anchorage.

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Obstructive sleep apnea is a disease characterized by repetitive breathing during sleep that lead to reduced oxygen saturation and sleep disturbance among other symptoms. Obstructive sleep apnea is caused by blockade of the upper respiratory airway, although the pathogenic mechanism underlying this occlusion remains unknown. In these studies we explored the hypothesis that alterations in the innervation, especially mechanosensory innervation, of the pharynx may contribute to obstructive sleep apnea.

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Purpose: To evaluate the efficacy and safety of gatifloxacin 0.5% ophthalmic solution administered twice daily for treatment of acute bacterial conjunctivitis.

Methods: Two identically designed, double-masked, multicenter studies in the United States and India enrolled patients 1 year or older with acute bacterial conjunctivitis.

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The present study was carried out to evaluate the ability of Trichoderma harzianum (ALL 42-isolated from Brazilian Cerrado soil) to promote common bean growth and to modulate its metabolism and defense response in the presence or absence of the phytopathogenic fungi Rhizoctonia solani and Fusarium solani using a proteomic approach. T. harzianum was able to promote common bean plants growth as shown by the increase in root/foliar areas and by size in comparison to plants grown in its absence.

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Alterations in the architecture and dynamics of the nuclear lamina have a causal role in normal and accelerated aging through both cell-autonomous and systemic mechanisms. However, the precise nature of the molecular cues involved in this process remains incompletely defined. Here we report that the accumulation of prelamin A isoforms at the nuclear lamina triggers an ATM- and NEMO-dependent signaling pathway that leads to NF-κB activation and secretion of high levels of proinflammatory cytokines in two different mouse models of accelerated aging (Zmpste24(-/-) and Lmna(G609G/G609G) mice).

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The enigmatic rodlet cells (RCs) are characterized by conspicuous inclusions named "rodlets". They were discovered over 100 years ago and were considered as parasites but shortly afterward interpreted as endogenous cells. The RCs have been described in different tissues of marine and freshwater teleosts, but their origin and function remain unknown.

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The European sea bass, a member of the Moronidae family, is a food fish, considered one of the first models for the intensive breeding in salt water. It has nowadays an important and increasing presence in the international fishing markets. Sea basses are carnivorous, feeding on little fishes and invertebrates.

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The zebrafish pineal gland plays an important role in different physiological functions including the regulation of the circadian clock. In the fish pineal gland the pinealocytes are made up of different segments: outer segment, inner segment and basal pole. Particularly, in the outer segment the rhodopsin participates in the external environment light reception that represents the first biochemical step in the melatonin production.

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Hutchinson-Gilford progeria syndrome (HGPS) is caused by a point mutation in the LMNA gene that activates a cryptic donor splice site and yields a truncated form of prelamin A called progerin. Small amounts of progerin are also produced during normal aging. Studies with mouse models of HGPS have allowed the recent development of the first therapeutic approaches for this disease.

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Background: Pathogens depend on peptidase activities to accomplish many physiological processes, including interaction with their hosts, highlighting parasitic peptidases as potential drug targets. In this study, a major leucyl aminopeptidolytic activity was identified in Trypanosoma cruzi, the aetiological agent of Chagas disease.

Results: The enzyme was isolated from epimastigote forms of the parasite by a two-step chromatographic procedure and associated with a single 330-kDa homohexameric protein as determined by sedimentation velocity and light scattering experiments.

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The zebrafish pineal gland plays a fundamental role in the regulation of the circadian rhythm through the melatonin secretion. The pinealocytes, also called photoreceptive cells, are considered the morphofunctional unit of pineal gland. In literature, the anatomical features, the cellular characteristics, and the pinealocytes morphology of zebrafish pineal gland have not been previously described in detail.

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Purpose: To evaluate the efficacy and safety of twice-daily, preservative-free ketorolac 0.45% (Acuvail; Allergan, Inc, Irvine, California, USA) administration for treatment of inflammation and pain after cataract surgery.

Design: Prospective, randomized trial.

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Paracoccidioides brasiliensis is a thermo-dimorphic human pathogenic fungus that in the mycelium phase lives at 23°C in environment and in the yeast phase at 37°C in the host tissues. In P. brasiliensis, the main polymers that compound the cell wall are chitin, 1,3-β-D-glucan and 1,3-α-glucan.

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