279 results on '"Mas, N"'
Search Results
102. Preparation of SS316L MIM feedstock with biopolymer as a binder
- Author
-
Abdullah, A A, Norita, H, Azlina, H N, Sulong, A B, and Mas, N N
- Abstract
This paper focus on feedstock preparation for SS316L metal injection molding (MIM) part. The primary step of feedstock preparation, critical powder loading determined by two method; maximum filled volume calculation model and torque analysis. The critical powder loading determined by calculation was 70 vol% to 77 vol% while for experimental approaches shows the value of 75 vol%. The feedstock was prepared by mixing SS316L powder and polymer binder with ratio 70:30 at 175 degC with speed of 50 rpm. The feedstock was analyzed by thermogravimetric analysis (TGA) and Scanning electron microscope (SEM). The composition for the feedstock after preparation step was confirmed by TGA. It was found that the prepared feedstock component was compatible to each other and composition is maintain along the mixing step.
- Published
- 2018
103. Scalable microfabricated multiphase reactors for direct fluorination reactions.
- Author
-
de Mas, N., Gunther, A., Schmidt, M.A., and Jensen, K.F.
- Published
- 2003
- Full Text
- View/download PDF
104. Effect of ligamenta flava hypertrophy on lumbar disc herniation with contralateral symptoms and signs: a clinical and morphometric study
- Author
-
Hamit Selim Karabekir, Elmas K. Atar, Nuket Gocmen-Mas, Soner Yaycioglu, Ahmet Yildizhan, Canan Yazici, Karabekir, H.S., Yildizhan, A., Atar, E.K., Yaycioglu, S., Gocmen-Mas, N., Yazici, C., and Yeditepe Üniversitesi
- Subjects
medicine.medical_specialty ,Contralateral symptoms ,Spinal stenosis ,lumbar disc herniation ,Muscle hypertrophy ,Ligamentum flavum hypertrophy ,Magnetic resonance imaging ,Clinical Research ,magnetic resonance imaging ,Medicine ,Spinal canal ,Sciatica ,medicine.diagnostic_test ,business.industry ,Morphometry ,General Medicine ,contralateral symptoms ,medicine.disease ,Surgery ,medicine.anatomical_structure ,Ligamenta flava ,Ligament ,Lumbar disc herniation ,medicine.symptom ,ligamentum flavum hypertrophy ,business ,morphometry - Abstract
Introduction: The purpose of this study was to determine whether ligamentum flavum hypertrophy among disc herniated patients causes contralateral pain symptoms. For this reason we measured the thickness of the ligament in disc herniated patients with ipsilateral or contralateral symptoms. Material and methods: Two hundred disc herniated patients with ipsilateral symptoms as group I were compared with five disc herniated patients with only contralateral symptoms as group II. Ligamenta flava thicknesses and spinal canal diameters of both groups were measured on magnetic resonance imaging (MRI) with a micro-caliper. Results: Both groups underwent surgery only on the disc herniated side. The total thicknesses of the ligamenta flava in group II was thicker than in group I. There was no spinal stenosis in either group and no significance difference between the groups. Statistically significant differences were found for both ipsilateral and contralateral thickness of the ligament flava in both groups. We also compared thickness of the ligamenta flava for each level of disc herniation in group I; ligamenta flava hypertrophy was more common at L3-L4 and L4-L5 levels of vertebrae in females. Conclusions: Aetiology of contralateral sciatica among disc herniated patients may be related to hypertrophy of the ligamenta flava, especially on the opposite side. Surgical approaches of the disc herniated side alone may be sufficient for a good outcome. Copyright © 2010 Termedia & Banach.
- Published
- 2010
- Full Text
- View/download PDF
105. Activity of natural occurring entomopathogenic fungi on nymphal and adult stages of Philaenus spumarius.
- Author
-
Bodino N, Barbera R, González-Mas N, Demichelis S, Bosco D, and Dolci P
- Subjects
- Animals, Beauveria pathogenicity, Beauveria physiology, Insect Vectors microbiology, Fusarium, Italy, Xylella physiology, Hypocreales physiology, Hypocreales pathogenicity, Nymph microbiology, Nymph growth & development, Pest Control, Biological methods, Hemiptera microbiology
- Abstract
The spittlebug Philaenus spumarius (Hemiptera: Aphrophoridae) is the predominant vector of Xylella fastidiosa (Xanthomonadales: Xanthomonadaceae) in Apulia, Italy and the rest of Europe. Current control strategies of the insect vector rely on mechanical management of nymphal stages and insecticide application against adult populations. Entomopathogenic fungi (EPF) are biological control agents naturally attacking spittlebugs and may effectively reduce population levels of host species. Different experimental trials in controlled conditions have been performed to i) identify naturally occurring EPF on P, spumarius in Northwestern Italy, and ii) evaluate the potential for biocontrol of the isolated strains on both nymphal and adult stages of the spittlebug. Four EPF species were isolated from dead P. spumarius collected in semi-field conditions: Beauveria bassiana, Conidiobolus coronatus, Fusarium equiseti and Lecanicillium aphanocladii. All the fungal isolates showed entomopathogenic potential against nymphal stages of P. spumarius (≈ 45 % mortality), except for F. equiseti, in preliminary trials. No induced mortality was observed on adult stage. Lecanicillium aphanocladii was the most promising fungus and its pathogenicity against spittlebug nymphs was further tested in different formulations (conidia vs blastospores) and with natural adjuvants. Blastospore formulation was the most effective in killing nymphal instars and reducing the emergence rate of P, spumarius adults, reaching mortality levels (90%) similar to those of the commercial product Naturalis®, while no or adverse effect of natural adjuvants was recorded. The encouraging results of this study pave way for testing EPF isolates against P, spumarius in field conditions and find new environmentally friendly control strategies against insect vectors of X. fastidiosa., Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: [Bosco Domenico reports financial support and equipment, drugs, or supplies were provided by Globachem Discovery Ltd, Bosco Domenico reports financial support was provided by Horizon Europe Food Bioeconomy Natural Resources Agriculture and Environment]., (Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved.)
- Published
- 2024
- Full Text
- View/download PDF
106. Ecosystem services of entomopathogenic ascomycetes.
- Author
-
Quesada-Moraga E, Garrido-Jurado I, González-Mas N, and Yousef-Yousef M
- Subjects
- Humans, Animals, Ecosystem, Pest Control, Biological, Agriculture, Arthropods, Ascomycota
- Abstract
Entomopathogenic ascomycetes (EA) are an important part of the microbiota in most terrestrial ecosystems, where they can be found regulating natural populations of arthropod pests in both epigeous and hypogeous habitats while also establishing unique relationships with plants. These fungi offer direct benefits to agriculture and human welfare. In the present work, we conducted a systematic review to comprehensively assess the range of ecosystem services provided by EA, including direct and indirect pest biocontrol, plant growth promotion, plant defense against other biotic and abiotic stresses, nutrient cycling, and the production of new bioactive compounds with agricultural, pharmaceutical and medical importance. Moreover, EA are compatible with the ecosystem services provided by other microbial and macrobial biocontrol agents. This systematic review identified the need for future research to focus on evaluating the economic value of the ecological services provided by EA with a special emphasis on hypocrealean fungi. This evaluation is essential not only for the conservation but also for better regulation and exploitation of the benefits of EA in promoting agricultural sustainability, reducing the use of chemicals that enter the environment, and minimizing the negative impacts of crop protection on the carbon footprint and human health., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 The Authors. Published by Elsevier Inc. All rights reserved.)
- Published
- 2023
- Full Text
- View/download PDF
107. Sex and gender differences in acute stroke care: metrics, access to treatment and outcome. A territorial analysis of the Stroke Code System of Catalonia.
- Author
-
Silva Y, Sánchez-Cirera L, Terceño M, Dorado L, Valls A, Martínez M, Abilleira S, Rubiera M, Quesada H, Llull L, Rodríguez-Campello A, Martí-Fàbregas J, Seró L, Purroy F, Payo I, García S, Cánovas D, Krupinski J, Mas N, Palomeras E, Cocho D, Font MÀ, Catena E, Puiggròs E, Pedroza C, Marín G, Carrión D, Costa X, Almendros MC, Torres I, Colom C, Velasquez JA, Diaz G, Jiménez X, Subirats T, Deulofeu A, Hidalgo V, Salvat-Plana M, and Pérez de la Ossa N
- Subjects
- Male, Humans, Female, Aged, Spain epidemiology, Prospective Studies, Sex Factors, Treatment Outcome, Stroke diagnosis
- Abstract
Introduction: Previous studies have reported differences in the management and outcome of women stroke patients in comparison with men. We aim to analyze sex and gender differences in the medical assistance, access to treatment and outcome of acute stroke patients in Catalonia., Patients and Methods: Data were obtained from a prospective population-based registry of stroke code activations in Catalonia (CICAT) from January/2016 to December/2019. The registry includes demographic data, stroke severity, stroke subtype, reperfusion therapy, and time workflow. Centralized clinical outcome at 90 days was assessed in patients receiving reperfusion therapy., Results: A total of 23,371 stroke code activations were registered (54% men, 46% women). No differences in prehospital time metrics were observed. Women more frequently had a final diagnosis of stroke mimic, were older and had a previous worse functional situation. Among ischemic stroke patients, women had higher stroke severity and more frequently presented proximal large vessel occlusion. Women received more frequently reperfusion therapy (48.2% vs 43.1%, p < 0.001). Women tended to present a worse outcome at 90 days, especially for the group receiving only IVT (good outcome 56.7% vs 63.8%; p < 0.001), but not for the group of patients treated with IVT + MT or MT alone, although sex was not independently associated with clinical outcome in logistic regression analysis (OR 1.07; 95% CI, 0.94-1.23; p = 0.27) nor in the analysis after matching using the propensity score (OR 1.09; 95% CI, 0.97-1.22)., Discussion and Conclusion: We found some differences by sex in that acute stroke was more frequent in older women and the stroke severity was higher. We found no differences in medical assistance times, access to reperfusion treatment and early complications. Worse clinical outcome at 90 days in women was conditioned by stroke severity and older age, but not by sex itself.
- Published
- 2023
- Full Text
- View/download PDF
108. Study the Effect of an Innovative Educational Program Promoting Healthy Food Habits on Eating Disorders, Mediterranean Diet Adherence and Body Composition in University Students.
- Author
-
Martínez-Rodríguez A, Vidal-Martínez L, Martínez-Olcina M, Miralles-Amorós L, Sánchez-Sáez JA, Ramos-Campo DJ, Sánchez-Sánchez J, Martínez-Amorós N, Cheikh-Moussa K, Asencio-Mas N, Andreu-Caravaca L, and Rubio-Arias JÁ
- Abstract
The university stage is a good time to promote healthy eating strategies. The sociological and cultural changes experienced by students lead them to skip meals, increase their intake of fast food and energy-dense foods, decreasing adherence to the Mediterranean diet (MD). Professionals related to food such as nutritionists and dietitians are also considered a population at risk of developing eating disorders due to the extensive knowledge they possess, which can be used for both good and bad practice. The objective was to analyze the impact of a 4-month educational program promoting the Mediterranean diet on risky eating behaviors, adherence to the Mediterranean diet, and body composition in nutrition and dietetics students, studying the differences according to the group investigated (control group and educated group). The context of the research was 196 students (49 males and 147 females) from two consecutive years. The control group did not receive any type of intervention, while with the control group (educated) an educational program was carried out. Results showed that women with greater control over energy intake, carbohydrates, and sugar had a lower percentage of fat mass, while in men, the relationship was established with weight. Regarding adherence to the Mediterranean diet, at post, it is adequate in both men (8.25 ± 2.87) and women (7.90 ± 2.89), with no significant differences between the intervention groups.
- Published
- 2023
- Full Text
- View/download PDF
109. Macular Anatomy Differs in Dyslexic Subjects.
- Author
-
Garcia-Medina JJ, Bascuñana-Mas N, Sobrado-Calvo P, Gomez-Molina C, Rubio-Velazquez E, De-Paco-Matallana M, Zanon-Moreno V, Pinazo-Duran MD, and Del-Rio-Vellosillo M
- Abstract
The macula, as the central part of the retina, plays an important role in the reading process. However, its morphology has not been previously studied in the context of dyslexia. In this research, we compared the thickness of the fovea, parafovea and perifovea between dyslexic subjects and normal controls, in 11 retinal segmentations obtained by optical coherence tomography (OCT). With this aim, we considered the nine sectors of the Early Treatment Diabetic Retinopathy Study (ETDRS) grid and also summarized data from sectors into inner ring subfield (parafovea) and outer ring subfield (perifovea). The thickness in all the four parafoveal sectors was significantly thicker in the complete retina, inner retina and middle retina of both eyes in the dyslexic group, as well as other macular sectors (fovea and perifovea) in the inner nuclear layer (INL), inner plexiform layer (IPL), IPL + INL and outer plexiform layer + outer nuclear layer (OPL + ONL). Additionally, the inner ring subfield (parafovea), but not the outer ring subfield (perifovea), was thicker in the complete retina, inner retina, middle retina (INL + OPL + ONL), OPL + ONL, IPL + INL and INL in the dyslexic group for both eyes. In contrast, no differences were found between the groups in any of the sectors or subfields of the outer retina, retinal nerve fiber layer, ganglion cell layer or ganglion cell complex in any eye. Thus, we conclude from this exploratory research that the macular morphology differs between dyslexic and normal control subjects, as measured by OCT, especially in the parafovea at middle retinal segmentations.
- Published
- 2023
- Full Text
- View/download PDF
110. Association of Time of Day With Outcomes Among Patients Triaged for a Suspected Severe Stroke in Nonurban Catalonia.
- Author
-
García-Tornel Á, Flores A, Terceño M, Cardona P, Amaro S, Gomis M, Zaragoza J, Krupinski J, Gómez-Choco M, Mas N, Cocho D, Catena E, Purroy F, Deck M, Rubiera M, Pagola J, Rodriguez-Luna D, Juega J, Rodríguez-Villatoro N, Molina CA, Soro C, Jimenez X, Salvat-Plana M, Dávalos A, Jovin TG, Abilleira S, Pérez de la Ossa N, and Ribó M
- Subjects
- Humans, Cognition, Spain epidemiology, Tissue Plasminogen Activator, Ischemic Stroke, Stroke diagnostic imaging, Stroke therapy
- Abstract
Background: We aim to assess whether time of day modified the treatment effect in the RACECAT trial (Direct Transfer to an Endovascular Center Compared to Transfer to the Closest Stroke Center in Acute Stroke Patients With Suspected Large Vessel Occlusion Trial), a cluster-randomized trial that did not demonstrate the benefit of direct transportation to a thrombectomy-capable center versus nearest local stroke center for patients with a suspected large vessel stroke triaged in nonurban Catalonia between March 2017 and June 2020., Methods: We performed a post hoc analysis of RACECAT to evaluate if the association between initial transport routing and functional outcome differed according to trial enrollment time: daytime (8:00 am-8:59 pm) and nighttime (9:00 pm-7:59 am). Primary outcome was disability at 90 days, as assessed by the shift analysis on the modified Rankin Scale score, in patients with ischemic stroke. Subgroup analyses according to stroke subtype were evaluated., Results: We included 949 patients with an ischemic stroke, of whom 258 patients(27%) were enrolled during nighttime. Among patients enrolled during nighttime, direct transport to a thrombectomy-capable center was associated with lower degrees of disability at 90 days (adjusted common odds ratio [acOR], 1.620 [95% CI, 1.020-2.551]); no significant difference between trial groups was present during daytime (acOR, 0.890 [95% CI, 0.680-1.163]; P
interaction =0.014). Influence of nighttime on the treatment effect was only evident in patients with large vessel occlusion(daytime, acOR 0.766 [95% CI, 0.548-1.072]; nighttime, acOR, 1.785 [95% CI, 1.024-3.112] ; Pinteraction <0.01); no heterogeneity was observed for other stroke subtypes ( Pinteraction >0.1 for all comparisons). We observed longer delays in alteplase administration, interhospital transfers, and mechanical thrombectomy initiation during nighttime in patients allocated to local stroke centers., Conclusions: Among patients evaluated during nighttime for a suspected acute severe stroke in non-urban areas of Catalonia, direct transport to a thrombectomy-capable center was associated with lower degrees of disability at 90 days. This association was only evident in patients with confirmed large vessel occlusion on vascular imaging. Time delays in alteplase administration and interhospital transfers might mediate the observed differences in clinical outcome., Registration: URL: https://www., Clinicaltrials: gov; Unique identifier: NCT02795962.- Published
- 2023
- Full Text
- View/download PDF
111. Evolution of quality indicators in acute stroke during the RACECAT Trial: Impact in the general population.
- Author
-
Olivé-Gadea M, Pérez de la Ossa N, Jovin T, Abilleira S, Jiménez X, Cardona P, Chamorro A, Flores A, Silva Y, Purroy F, Martí-Fabregas J, Rodríguez-Campello A, Zaragoza J, Krupinski J, Canovas D, Gomez Choco M, Mas N, Palomeras E, Cocho D, Aragonès JM, Repullo C, Sanjurjo E, Carrion D, Catena E, Costa X, Almendros MC, Barceló M, Monedero J, Rybyeva M, Diaz G, and Ribó M
- Subjects
- Humans, Thrombolytic Therapy methods, Quality Indicators, Health Care, Retrospective Studies, Treatment Outcome, Thrombectomy, Stroke epidemiology, Stroke therapy, Brain Ischemia therapy, Ischemic Stroke, Endovascular Procedures
- Abstract
Background: Acute ischemic stroke patients not referred directly to a comprehensive stroke center (CSC) have reduced access to endovascular treatment (EVT). The RACECAT trial is a population-based cluster-randomized trial, designed to compare mothership and drip-and-ship strategies in acute ischemic stroke patients outside the catchment area of a CSC., Aims: To analyze the evolution of performance indicators in the regions that participated in RACECAT., Methods: This retrospective longitudinal observational study included all stroke alerts evaluated by emergency medical services in Catalonia between February 2016 and February 2020. Cases were classified geographically according to the nearest SC: local SC (Local-SC) and CSC catchment areas. We analyzed the evolution of EVT rates and relevant workflow times in Local-SC versus CSC catchment areas over three study periods: P1 (February 2016 to April 2017: before RACECAT initiation), P2 (May 2017 to September 2018), and P3 (October 2018 to February 2020)., Results: We included 20603 stroke alerts, 10,694 (51.9%) of which were activated within Local-SC catchment areas. The proportion of patients receiving EVT within Local-SC catchment areas increased (P1 vs. P3: 7.5% (95% confidence interval (CI), 6.4-8.7) to 22.5% (95% CI, 20.8-24.4) p < 0.001). Inequalities in the odds of receiving EVT were reduced for patients from CSC versus Local-SC catchment areas (P1: odds ratio (OR) 3.9 (95% CI, 3.2-5) vs. P3: OR 1.5 (95% CI, 1.3-1.7) In Local-SC, door-to-image (P1: 24 (interquartile range (IQR) 15-36), P2: 24 (15-35), P3: 21 (13-32) min, p < 0.001) and door-to-needle times (P1: 42 (31-60), P2: 41 (29-58), P3: 35 (25-50) p < 0.001) reduced. Time from Local-SC arrival to groin puncture also decreased over time (P1: 188 [151-229], P2: 190 (157-233), P3: 168 (127-215) min, p < 0.001)., Conclusion: An increase in EVT rates in Local-SC regions with a significant decrease in workflow times occurred during the period of the RACECAT trial.
- Published
- 2023
- Full Text
- View/download PDF
112. Study of Different Personalised Dietary Plans on Eating Behaviour, Body Image and Mood in Young Female Professional Handball Players: A Randomised Controlled Trial.
- Author
-
Miralles-Amorós L, Vicente-Martínez M, Martínez-Olcina M, Asencio-Mas N, Gonzálvez-Alvarado L, Peñaranda-Moraga M, Leyva-Vela B, Yáñez-Sepúlveda R, Cortés-Roco G, and Martínez-Rodríguez A
- Abstract
Low energy availability may precede or be caused by cognitive disturbances in professional athletes. Related psychological problems include disordered eating patterns, body shape preoccupation, depression or anxiety. The objective of this research was to evaluate the effects of different personalised dietary plans on psychological factors in young professional female handball players with low energy availability. This 12-week randomised clinical trial involved 21 female players aged 22 ± 4 years, 172.0 ± 5.4 cm and 68.4 ± 6.7 kg divided into three groups (FD: free diet; MD: Mediterranean diet; HAD: high antioxidant diet). Eating behaviour (Eating Attitude Test, EAT-26: diet, bulimia and oral control subscales), body image (Body Shape Questionnaire, BSQ) and mood state (Profile of Mode State, POMS: tension, vigour, anger, depression, fatigue) were assessed. All participants showed low energy availability (<30 kcal/lean mass per day). The different plans showed no significant differences between them but significant differences over time within groups for the variables: body image, Tension, Vigour and Depression ( p < 0.05). Eating behaviour improved slightly but did not show statistically significant changes. Following an adequate nutritional planning for athletes seems to improve the mood and body perception of young female handball players. A longer intervention period is required to assess the differences between diets and improvement of other parameters.
- Published
- 2023
- Full Text
- View/download PDF
113. Study the Effect of Relative Energy Deficiency on Physiological and Physical Variables in Professional Women Athletes: A Randomized Controlled Trial.
- Author
-
Miralles-Amorós L, Asencio-Mas N, Martínez-Olcina M, Vicente-Martínez M, Frutos JMG, Peñaranda-Moraga M, Gonzálvez-Alvarado L, Yáñez-Sepúlveda R, Cortés-Roco G, and Martínez-Rodríguez A
- Abstract
Energy deficits are often observed in athletes, especially in female athletes, due to the high expenditure of sport and strict diets. Low energy availability can cause serious health problems and affect sport performance. The aim of this study was to evaluate the effects of different personalized dietary plans on physiological and physical factors related to energy deficit syndrome in female professional handball players. Twenty-one professional female handball players, aged 22 ± 4 years, 172.0 ± 5.4 cm and 68.4 ± 6.7 kg, divided into three groups (FD: free diet; MD: Mediterranean diet; and AD: high antioxidant diet), participated in this 12-week randomized controlled trial. Energy expenditure through indirect calorimetry, energy availability, 7 day dietary intake analysis, blood pressure, cholesterol, menstrual function, body composition by both anthropometry and bioelectrical impedance, and strength performance were assessed. All participants showed low energy availability (<30 kcal/lean mass per day); despite this, all had eumenorrhea. Significant improvements were found after the intervention in all components of body composition ( p < 0.05). In the remaining variables, despite slight improvements, none were significant neither over time nor between the different groups. Low energy availability has been observed in all professional female handball players, which may lead to serious consequences. A longer period of intervention is required to assess the differences between diets and improvements in other parameters.
- Published
- 2023
- Full Text
- View/download PDF
114. Quantitative Diet, Body Composition and Sprint Performance in Female Professional Beach Handball Players.
- Author
-
Martínez-Rodríguez A, Sánchez-Sánchez J, Martínez-Olcina M, Vicente-Martínez M, Peñaranda-Moraga M, Asencio-Mas N, Gonzálvez-Alvarado L, Matlosz P, Yáñez-Sepúlveda R, Cortés-Roco G, and Sánchez-Sáez JA
- Subjects
- Female, Humans, Body Composition physiology, Athletes, Arm, Diet, Anthropometry, Athletic Performance physiology
- Abstract
Women's elite sports have experienced an exponential increase in the last decade, as has beach handball (BH). The high demands of this sport mean that athletes need to be in superior physical condition, so nutrition and body composition are determining factors in their sporting performance. For this reason, the aim of this study was to analyze, compare and correlate the most relevant variables of food intake (quantitative), body composition (focus on the bone mass characteristics) and sprint performance in female professional BH players. Thirty-three women from the National Spanish Team participated in this study. Dietary assessment, anthropometric measurements and sprint tests were performed. In general, the players had a low carbohydrate intake and adequate protein intake, with no significant differences depending on the category and playing position. For senior players, positive correlations were found between protein intake and bone mass ( r = 0.584, p = 0.022), polyunsaturated fatty acid intake and muscle mass ( r = 0.387, p = 0.026) and finally between fat mass and animal protein intake ( r = 0.569, p = 0.027). Body composition was similar in both categories; however, goalkeepers had the highest fat (22.6 ± 3.86%, 16.2 ± 4.84 kg) component (vs. wings: 17.4 ± 3.53%, p = 0.031/vs. specialists: 11.1 ± 1.91 kg, p = 0.034), and senior players had higher muscle mass (kilograms). It is worth noting the finding that players with a greater trochanter height had significantly lower sprint times ( p = 0.014 and p = 0.048 for 5 and 10 m, respectively). Certain bone characteristics, such as iliospinale height, biacromial and bimalleolar diameters, mesosternal perimeter and biceps skinfold, differ depending on the position. In addition, the greater speed of the senior players may be due to the greater specialization, number of training sessions performed and specific bone characteristics, such as trochanter height. In this regard, the data provided in this study will assist with establishing criteria for the selection of talent for this sporting discipline.
- Published
- 2022
- Full Text
- View/download PDF
115. Ramadan Nutritional Strategy: Professional Soccer Player Case Study.
- Author
-
Martínez-Rodríguez A, Miralles-Amorós L, Vicente-Martínez M, Asencio-Mas N, Yáñez-Sepúlveda R, and Martínez-Olcina M
- Subjects
- Adult, Fasting physiology, Humans, Islam, Young Adult, Athletic Performance physiology, Running physiology, Soccer physiology
- Abstract
The period of Ramadan induces changes in the usual eating patterns of individuals. During this period, Muslims must abstain from drinking and eating from dawn to dusk. Therefore, some research conducted on professional soccer players has observed that during and/or after Ramadan, performance, running speed, agility, dribbling speed, and endurance and/or skill performance in athletic events may be negatively affected by Ramadan intermittent fasting (RIF). The objective of this study was to analyze the influence of a dietary plan during RIF on performance and body composition in a professional soccer player. A 20-year-old elite player (86.0 kg, 188.5 cm) followed a dietary-nutritional plan with an isocaloric diet and was supplemented with glycerol. The athlete's strength and power in the lower limbs was assessed by performing a countermovement jump (CMJ) and Abalakov vertical jump (ABK) before and after Ramadan. After nutritional planning, the patient's body composition improved in terms of fat loss (6.61 to 5.70%) and muscle mass gain (50.26 to 51.50%). In addition, this translated into improvements in performance tests, both in the CMJ (36.72 to 40.00 cm) and ABK (39.16 to 49.34 cm). In conclusion, during a period of fasting, personalised nutritional planning and an appropriate supplementation and rest protocol can improve the body composition and performance of soccer players.
- Published
- 2022
- Full Text
- View/download PDF
116. Ingestion of Carbohydrate Solutions and Mouth Rinse on Mood and Perceptual Responses during Exercise in Triathletes.
- Author
-
Martínez-Olcina M, Miralles-Amorós L, Asencio-Mas N, Vicente-Martínez M, Yáñez-Sepúlveda R, and Martínez-Rodríguez A
- Abstract
Triathlons are endurance events that include swimming, running, and cycling. Triathletes need to eat optimally during training and competitions to maximize their potential for success. The presence of carbohydrates in the mouth could activate regions in the brain to enhance athletic performance in exercise., Methods: This study examined the effects of glucose and mouthwash in ten male triathletes (age: 26.0 ± 8.7 years, height: 173.6 ± 10.4 cm, BMI 22.0 ± 1.7 kg/m
2 ). The four oral test solutions included (A) Rinse with placebo, (B) Water + gel with placebo, (C) Rinse with 15% CH concentration, and (D) Water + gel with 15% CH concentration (25 g gel in 165 mL water). The Rate of Perceived Exertion (RPE), Sensation Scale (FS), Felt Arousal Scale (FAS), Profile of Mood States (POMS), blood glucose, sprints, and dietary habits were assessed in each subject. All preceded ingestion of the oral-based test solution during workouts., Results: RPE showed no significant differences for subjective perceptions. The same was observed for FS and sprints. FAS scores increased over time ( p = 0.039) in all groups. POMS score increased significantly in group D ( p = 0.041). There was no effect of time on plasma glucose levels ( p = 0.737). As for correlations, positive correlations were observed between sprint and FAS variables ( p = 0.011)., Conclusions: It appears that CH intake correlates positively with mood, but in all other variables, there are no differences depending on the product.- Published
- 2022
- Full Text
- View/download PDF
117. Endophytic Colonization by the Entomopathogenic Fungus Beauveria Bassiana Affects Plant Volatile Emissions in the Presence or Absence of Chewing and Sap-Sucking Insects.
- Author
-
González-Mas N, Gutiérrez-Sánchez F, Sánchez-Ortiz A, Grandi L, Turlings TCJ, Manuel Muñoz-Redondo J, Moreno-Rojas JM, and Quesada-Moraga E
- Abstract
Entomopathogenic fungi are gaining acceptance in Integrated Pest Management (IPM) systems as effective and environmental safety biological control agents to protect a great variety of crops against pest insects. Many of these insect-pathogenic fungi can establish themselves as endophytes and thereby may induce the plant immune system. The activation of plant defenses by the fungal endophytic colonization can have a direct impact on herbivores and plant pathogens. An integral component of many plant defense responses is also the release of volatile organic compounds, which may serve as an indirect defense by attracting the natural enemies of herbivores. Here we investigated the effect of endophytic colonization by the entomopathogenic fungus Beauveria bassiana on the volatile emission by melon and cotton plants, either unharmed or after being damaged by sap-sucking aphids or leaf chewing caterpillars. We found that when the plants are colonized by B. bassiana they emit a different blend of volatile compounds compared to uncolonized control plants. Some of the emitted compounds have been reported previously to be released in response to herbivory and have been implicated in natural enemy attraction. Several of the compounds are also known to have antimicrobial properties. Therefore, endophytic colonization by B. bassiana might help to not only direct control insect pests but also increase the resistance of plants against agronomically important pests and phytopathogens., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2021 González-Mas, Gutiérrez-Sánchez, Sánchez-Ortiz, Grandi, Turlings, Manuel Muñoz-Redondo, Moreno-Rojas and Quesada-Moraga.)
- Published
- 2021
- Full Text
- View/download PDF
118. Effects of Endophytic Entomopathogenic Ascomycetes on the Life-History Traits of Aphis gossypii Glover and Its Interactions with Melon Plants.
- Author
-
González-Mas N, Sánchez-Ortiz A, Valverde-García P, and Quesada-Moraga E
- Abstract
Entomopathogenic fungi are sprayed commercially for aphid control in greenhouses. Recently, their ability to grow endophytically within plants was discovered, offering the opportunity for systemic biological control. Endophytic colonization of host plants could also influence life-table parameters and behavior of herbivores. We investigated lethal and pre-mortality effects of Beauveria bassiana and Metarhizium brunneum on Aphis gossypii ; aphids either received inoculum while feeding on recently sprayed leaves (surface inoculum and endophytically-colonized) or while feeding on unsprayed but endophytically-colonized leaves. We used choice assays to identify any preferences for endophytically-colonized or control plants. Volatile emissions from endophytically-colonized plants and control plants were also compared. Aphid mortality rates ranged between 48.2 and 56.9 % on sprayed leaves, and between 37.7 and 50.0 on endophytically-colonized leaves. There was a significant effect of endophytic colonization on the rate of nymph production, but this did not result in an overall increase in the aphid population. Endophytic colonization did not influence host-plant selection even though there were qualitative and quantitative differences in the blend of volatiles released by endophytically-colonized and control plants. Although endophytic colonization did not change herbivore behavior, plants still benefit via indirect defense, resistance to plant pathogens or abiotic stress tolerance., Competing Interests: The authors declare no conflict of interest.
- Published
- 2019
- Full Text
- View/download PDF
119. Cerebellar volume in early-onset schizophrenia and its association with severity of symptoms.
- Author
-
Özbek A, Göçmen Mas N, Turan S, Ay B, Serim Demirgören B, Nilüfer Yonguç G, Karabekir S, İpek Polat A, Semra Hız A, and Gencer Kıdak Ö
- Subjects
- Adolescent, Age of Onset, Cerebrum diagnostic imaging, Cerebrum physiopathology, Female, Humans, Magnetic Resonance Imaging, Male, Organ Size, Retrospective Studies, Schizophrenia diagnostic imaging, Schizophrenia physiopathology, Severity of Illness Index, Cerebrum pathology, Psychiatric Status Rating Scales statistics & numerical data, Schizophrenia pathology
- Abstract
Objectives: This study aimed to investigate whether early-onset schizophrenia (EOS) cases differ from controls regarding volumes of the total cerebellum and the right and left cerebellar hemispheres, and volumetric asymmetry. Correlations of cerebellar volumes and asymmetry indices with severity of symptoms and general functioning in cases of EOS were also assessed., Methods: Adolescents with EOS (n = 23) were compared with controls (n = 23). Sociodemographic and clinical data, and magnetic resonance imaging scans that were acquired for routine clinical purposes were collected retrospectively. Cerebellar volumes were evaluated using the stereological method. Asymmetry indices were subsequently calculated. Scores of the Positive and Negative Syndrome Scale and the Children's Global Assessment Scale were used to assess the severity of symptoms and general functionality., Results: There were no significant differences in any of the cerebellar volumes and asymmetry indices between the two groups. Neither cerebellar volumes nor asymmetry indices were correlated with the severity of symptoms and general functionality in EOS., Conclusions: Our findings suggest that the early-onset form of schizophrenia does not show apparent volumetric changes of the cerebellum. Additionally, the neural circuits involved in formation of symptomatology may not reflect any correlation with cerebellar volumes at mid-adolescence.
- Published
- 2019
- Full Text
- View/download PDF
120. Comparison of Three Methods Used for Estimating Area of Foramen Magnum.
- Author
-
Gocmen Mas N, Cirpan S, Aksu F, Yonguc Demirci GN, Lafci Fahrioglu S, Durmaz O, and Karabekir S
- Subjects
- Cephalometry statistics & numerical data, Humans, Cephalometry methods, Foramen Magnum anatomy & histology
- Abstract
Objective: To compare whether there are any differences between the 3 methods used for measure area of foramen magnum (FM) in skulls., Methods: The FMs of 150 skulls were examined. Antero-posterior diameter, transverse diameter were measured using by Vernier caliper. The area of the FM was calculated by using 2 different formulas as described previously by Radinsky and Teixeira.The authors also applied stereological assessment method for estimating the surface area of FMs. The area was calculated 3 times manually using stereological point grid system for each skull.The authors compared the mean surface area of FMs obtained from each of these 3 methods estimating surface area of FMs whether there were any significant differences in between their results., Results: The mean areas of the FMs estimated according to Teixeria formula, Radinsky formula, and Cavalieri stereological method were respectively as follows: 790.47 ± 99.86 mm, 783.66 ± 99.34 mm, and 748.06 ± 100.19 mm. The authors observed significant differences (P < 0.05) in between the mean surface areas of FMs obtained from each of these 3 methods used for estimating the area., Conclusion: There were significant differences (P < 0.05) in between the mean surface areas of FMs obtained from each of these 3 methods used for estimating the area.
- Published
- 2018
- Full Text
- View/download PDF
121. Broadening the antibacterial spectrum of histidine kinase autophosphorylation inhibitors via the use of ε-poly-L-lysine capped mesoporous silica-based nanoparticles.
- Author
-
Velikova N, Mas N, Miguel-Romero L, Polo L, Stolte E, Zaccaria E, Cao R, Taverne N, Murguía JR, Martinez-Manez R, Marina A, and Wells J
- Subjects
- Animals, Drug Delivery Systems, Gram-Negative Bacteria, Gram-Positive Bacteria, Histidine, Humans, Lysine, Anti-Bacterial Agents pharmacology, Histidine Kinase, Nanoparticles, Silicon Dioxide
- Abstract
Two-component systems (TCS) regulate diverse processes such as virulence, stress responses, metabolism and antibiotic resistance in bacteria but are absent in humans, making them promising targets for novel antibacterials. By incorporating recently described TCS histidine kinase autophosphorylation inhibitors (HKAIs) into ε-poly-L-lysine capped nanoparticles (NPs) we could overcome the Gram negative (Gr-) permeability barrier for the HKAIs. The observed bactericidal activity against Gr- bacteria was shown to be due to the enhanced delivery and internalization of the HKAIs and not an inhibitory or synergistic effect of the NPs. The NPs had no adverse effects on mammalian cell viability or the immune function of macrophages in vitro and showed no signs of toxicity to zebrafish larvae in vivo. These results show that HKAIs are promising antibacterials for both Gr- and Gr+pathogens and that NPs are a safe drug delivery technology that can enhance the selectivity and efficacy of HKAIs against bacteria., (Copyright © 2016 Elsevier Inc. All rights reserved.)
- Published
- 2017
- Full Text
- View/download PDF
122. Biotechnology Based Process for Production of a Disulfide-Bridged Peptide.
- Author
-
Goswami A, Goldberg SL, Hanson RL, Johnston RM, Lyngberg OK, Chan Y, Lo E, Chan SH, de Mas N, Ramirez A, Doyle R, Ding W, Gao M, Krystek SR Jr, Wan C, Kim YJ, Calambur D, Witmer M, and Bryson JW
- Subjects
- Amino Acid Sequence, Escherichia coli genetics, Models, Molecular, Peptides genetics, Protein Multimerization, Protein Structure, Quaternary, Biotechnology, Disulfides chemistry, Peptides chemistry, Peptides metabolism
- Abstract
A disulfide-bridged peptide drug development candidate contained two oligopeptide chains with 11 and 12 natural amino acids joined by a disulfide bond at the N-terminal end. An efficient biotechnology based process for the production of the disulfide-bridged peptide was developed. Initially, the two individual oligopeptide chains were prepared separately by designing different fusion proteins and expressing them in recombinant E. coli. Enzymatic or chemical cleavage of the two fusion proteins provided the two individual oligopeptide chains which could be conjugated via disulfide bond by conventional chemical reaction to the disulfide-bridged peptide. A novel heterodimeric system to bring the two oligopeptide chains closer and induce disulfide bond formation was designed by taking advantage of the self-assembly of a leucine zipper system. The heterodimeric approach involved designing fusion proteins with the acidic and basic components of the leucine zipper, additional amino acids to optimize interaction between the individual chains, specific cleavage sites, specific tag to ensure separation, and two individual oligopeptide chains. Computer modeling was used to identify the nature and number of amino acid residue to be inserted between the leucine zipper and oligopeptides for optimum interaction. Cloning and expression in rec E. coli, fermentation, followed by cell disruption resulted in the formation of heterodimeric protein with the interchain disulfide bond. Separation of the desired heterodimeric protein, followed by specific cleavage at methionine by cyanogen bromide provided the disulfide-bridged peptide.
- Published
- 2016
- Full Text
- View/download PDF
123. Coexistence of Wormian Bones With Metopism, and Vice Versa, in Adult Skulls.
- Author
-
Cirpan S, Aksu F, Mas N, and Magden AO
- Subjects
- Adult, Humans, Mastoid pathology, Occipital Bone pathology, Parietal Bone, Cranial Sutures pathology, Craniosynostoses pathology, Frontal Bone pathology, Skull pathology
- Abstract
Objective: The aim of the study is to investigate coexistence of Wormian bones with metopism, and vice versa, in adult skulls., Materials and Methods: A total of 160 dry adult human skulls of unknown sex and ages were randomly selected from the Gross Anatomy Laboratory of Medical School of Dokuz Eylul University. The skulls were examined for presence of metopism, Wormian bones (WB), and coexistence of WBs with metopism and vice versa. Topographic distribution of the WBs was macroscopically evaluated within the skulls including metopism. The photographs were being taken with Canon 400B (55 mm objective)., Results: The frequency of metopism and WBs in 160 skulls is 7.50% (12/160) and 59.3% (95/160), respectively, P < 0.05 (). The incidence of coexistence of WBs with metopism was found as 11 of 12 skulls (91.66%), whereas the incidence of coexistence of metopism with WBs was found as 11 of 95 skulls (11.58%), P < 0.05 (). There were totally 23 sutures including WBs in 11 skulls, which had metopism (). The number (%) of metopic skulls for each specific suture including WBs were found as: 11 lamdoid sutures in 7/11 (63.63%) skulls, 4 lambda in 4/11 (36.36%) skulls, 2 asterion in 2/11 (18.18%) skulls, 1 squamous in 1/11 (9.09%) skull, 2 sagittal in 2/11 (18.18%) skulls, and 3 parieromsatoid sutures in 2/11 (18.18%) skulls (). The distribution of these 23 WBs in sutures of 11 skulls including metopisms is determined as follows: 11/23 (47.82%) WBs at lambdoid sutures [5/23 (21.74%) at the right lambdoid sutures and 6/23 (26.08%) at the left lambdoid sutures, and 4 pair of 11 WBs bilaterally located]; 4 (17.39%) WBs at lambda; 2/23 (8.69%) WBs at asterion [1/23 (4.34%) at the right asterion and 1/23 (4.34%) at the left asterion of 2 diverse skulls]; 2/23 (8.69%) WBs at sagittal sutures; 1/23 (4.34%) WBs at the left squamous suture; 3/23 (13.04%) WBs at parietomastoid sutures [2/23 (8.69%) at the right parietomastoid sutures and 1/23 (4.34%) at the left parietomastoid suture and 1 pair of them bilaterally located; , ].(Figure is included in full-text article.)(Table is included in full-text article.)(Table is included in full-text article.), Conclusions: : There was a significant difference in rates between coexistence of WBs with metopism (11/12, 91.66%) and coexistence of metopism with WBs (11/95, 11.58%). The factors leading to metopism may also lead to WBs, whereas that the factors leading to WBs may not lead to metopism.
- Published
- 2016
- Full Text
- View/download PDF
124. The Incidence and Topographic Distribution of Sutures Including Wormian Bones in Human Skulls.
- Author
-
Cirpan S, Aksu F, and Mas N
- Subjects
- Adult, Frontal Bone anatomy & histology, Humans, Mastoid anatomy & histology, Occipital Bone anatomy & histology, Orbit anatomy & histology, Parietal Bone anatomy & histology, Sphenoid Bone anatomy & histology, Temporal Bone anatomy & histology, Cranial Sutures anatomy & histology, Skull anatomy & histology
- Abstract
Objective: The Wormian Bones are accessory bones located within the cranial sutures and fontanelles. The present article examines the incidence of Wormian Bones and compares the number and topographic distribution between the sutures including Wormian Bones in skulls of West Anatolian Population., Methods: One hundred fifty crania were examined. The parameters evaluated in the present study were as follows: the rate of skulls including Wormian Bones; the topographic distribution and frequencies of the sutures including Wormian Bones; the number of these sutures for each skull; the name and number of sutures that were bilaterally and symmetrically located on the right and left side of skull (paired sutures) and which coincidentally had Wormian Bones for each skull; the differences of frequencies between the paired sutures including Wormian Bones., Results: The rate of skulls including Wormian Bones was determined as 59.3%. The maximum and minimum numbers of sutures, including Wormian Bones, were 6 in 1 skull and 1 in each of 30 skulls, respectively. The maximum and minimum rates of sutures that had Wormian Bones were found in left lambdoid 40.7% and right occipitomastoid 1.3% sutures, respectively. There was only a significant difference between the rate of right and left squamous sutures (P = 0.04). Forty-five skulls were including 55 pairs of bilaterally and symmetrically located sutures that coincidentally had Wormian Bones in each pair. Each of 35 skulls had 1 pair of sutures including Wormian Bones and each of 10 skulls had 2 pairs., Conclusions: In the present study, the rate of Wormian Bones was determined as 59.3% in West Anatolian Population. This incidence rate is considerably lower than the other reports, and it may be as a result of racial variations. These divergent bones were more frequently found in left lambdoid sutures (40.7%) and less frequently in right occipitomastoid sutures (1.3%). This study may guide the investigators dealing with the neurosurgery, orthopedy, radiology, anatomy, and anthropology in their practice.
- Published
- 2015
- Full Text
- View/download PDF
125. Morphometrical aspect on angular branch of facial artery.
- Author
-
Gocmen-Mas N, Edizer M, Keles N, Aksu F, Magden O, Lafci S, Ates H, and Karabekir S
- Subjects
- Adult, Dacryocystorhinostomy, Female, Humans, Male, Microscopy, Reference Values, Reproducibility of Results, Surgical Flaps blood supply, Arteries anatomy & histology, Face blood supply
- Abstract
Anatomic variability and anastomosis of the angular artery of the facial artery with the other arteries are important for both anatomists and surgeons. In particular, the angular artery is a significant landmark in dacryocystorhinostomy. Because of variations on anatomy of the angular artery, there are limited numbers of anatomic studies on the flaps of facial region. Hence, the aim of the cadaveric study was to evaluate the anatomic features of the angular artery in detail to help surgical procedures.The artery was represented under ×4 loop magnification in 32 sides of 16 formalin-fixed adult cadavers. The angular artery's position, diameter, and branch patterns relevant to the nose arterial supply were evaluated. The facial artery ended symmetrically in 10 (62.5%) of the cadavers. The facial artery was terminated as angular artery in all of the cases. The types of the angular artery were as follows: classical angular type in 8 cases (25.0%), nasal type in 15 cases (46.9%), alar type in 4 cases (12.5%), and labial type in 5 cases (15.6%) on the facial halves. We studied the topographic anatomic features of the angular artery for increasing reliability of the flaps on the region. The angular arterial anatomic details are critical and essential for surgical cosmetic and functional results.
- Published
- 2015
- Full Text
- View/download PDF
126. Determination of the magnetic structure of Gd₂Fe₂Si₂C by Mössbauer spectroscopy and neutron diffraction.
- Author
-
Ryan DH, Mas N, Susilo RA, Cadogan JM, and Flacau R
- Abstract
We have determined the magnetic structure of the intermetallic compound Gd2Fe2Si2C using neutron powder diffraction, (155)Gd and (57)Fe Mössbauer spectroscopy. This compound crystallizes in a monoclinic (C2/m) structure and its magnetic structure is characterized by antiferromagnetic order of the Gd sublattice along the b-axis, with cell-doubling along the c-axis. The propagation vector is k = [0 0 ½]. At 3.6 K the Gd moment reaches 6.2(2) μ(B). Finally, (57)Fe Mössbauer spectroscopy shows no evidence of magnetic ordering of the Fe sublattice.
- Published
- 2015
- Full Text
- View/download PDF
127. A new combination therapy in severe acute pancreatitis--hyperbaric oxygen plus 3-aminobenzamide: an experimental study.
- Author
-
Inal V, Mas MR, Isik AT, Comert B, Aydn S, Mas N, Deveci MS, Tasci I, Yamanel L, Cinar E, and Unal MT
- Subjects
- Acute Disease, Animals, Bacterial Translocation drug effects, Combined Modality Therapy, Disease Models, Animal, Male, Oxidative Stress drug effects, Pancreas metabolism, Pancreas microbiology, Pancreas pathology, Pancreatitis chemically induced, Pancreatitis metabolism, Pancreatitis microbiology, Pancreatitis pathology, Poly(ADP-ribose) Polymerase Inhibitors, Poly(ADP-ribose) Polymerases metabolism, Severity of Illness Index, Taurocholic Acid, Time Factors, Benzamides pharmacology, Enzyme Inhibitors pharmacology, Hyperbaric Oxygenation, Pancreas drug effects, Pancreatitis therapy
- Abstract
Objectives: This study was designed to evaluate effects of hyperbaric oxygen (HBO) plus 3-aminobenzamide (3-AB) cotreatment on tissue oxidative stress parameters (TOSp), tissue histopathology scores (THSc), and bacterial translocations (Bact-Trans) in an experimental model of severe acute pancreatitis (AP)., Methods: Seventy-five Sprague-Dawley rats were randomized into 5 groups. Group 1 received sham. Severe AP was induced by intraductal taurocholate infusion and then group 2 received saline, group 3 received 3-AB, group 4 received 3-AB plus HBO, and group 5 received HBO. 3-Aminobenzamide (10 mg/kg per day, once daily, intraperitoneal) and saline (1 mL/kg) were started right after the induction, whereas HBO (2,8 atm pressure, BID, 90 minutes each) was started at the sixth hour. The rats were euthanized at the 54th hour, and TOSp, THSc, and Bact-Trans were studied., Results: In treatment groups 3 and 5, Bact-Trans (P < 0.05, P < 0.05), TOSp (P < 0.05, P < 0.05), and THSc (P < 0.001, P < 0.001) were significantly lower than controls. In addition to these findings, group 4 (cotreatment) showed the most significant effect on Bact-Trans and THSc (P < 0.001, P < 0.001) and also better in TOSp (P < 0.02)., Conclusions: Poly(ADP-ribose) polymerase inhibition by 3-AB and HBO treatment alone was effective in the course of severe AP, and favorable with cotreatment because of the improved cascades of inflammatory process by different aspects.
- Published
- 2015
- Full Text
- View/download PDF
128. The onset of nonmotor symptoms in Parkinson's disease (the ONSET PD study).
- Author
-
Pont-Sunyer C, Hotter A, Gaig C, Seppi K, Compta Y, Katzenschlager R, Mas N, Hofeneder D, Brücke T, Bayés A, Wenzel K, Infante J, Zach H, Pirker W, Posada IJ, Álvarez R, Ispierto L, De Fàbregues O, Callén A, Palasí A, Aguilar M, Martí MJ, Valldeoriola F, Salamero M, Poewe W, and Tolosa E
- Subjects
- Adult, Age of Onset, Aged, Aged, 80 and over, Constipation etiology, Diagnosis, Differential, Fatigue etiology, Female, Humans, Male, Mental Disorders etiology, Mental Disorders physiopathology, Middle Aged, Olfaction Disorders etiology, Parkinson Disease diagnosis, Risk, Surveys and Questionnaires, Constipation diagnosis, Mental Disorders diagnosis, Olfaction Disorders diagnosis, Parkinson Disease complications
- Abstract
Nonmotor symptoms (NMS) in Parkinson's disease (PD) can precede onset of motor symptoms. Relationship between premotor symptoms onset and motor features is limited. Our aim is to describe the presence and perceived onset of NMS in PD as well as their possible association with motor phenotype. Presence and onset of NMS were assessed by a custom-made questionnaire in 109 newly diagnosed untreated PD patients and 107 controls from 11 Spanish and Austrian centers. Seventeen of thirty-one NMS were more common in patients than controls (P < 0.05). They were usually mild and frequently reported to occur at different time-spans before motor symptoms. Anhedonia, apathy, memory complaints, and inattention occurred more frequently during the 2-year premotor period. Those reported more frequently in the 2- to 10-year premotor period were smell loss, mood disturbances, taste loss, excessive sweating, fatigue, and pain. Constipation, dream-enacting behavior, excessive daytime sleepiness, and postprandial fullness were frequently perceived more than 10 years before motor symptoms. No correlation between NMS burden and motor severity, age, or gender was observed. NMS associated in four clusters: rapid eye movement sleep behavior disorder symptoms-constipation, cognition-related, mood-related, and sensory clusters. No cluster was associated with a specific motor phenotype or severity. NMS are common in early unmedicated PD and frequently reported to occur in the premotor period. They are generally mild, but a patient subgroup showed high NMS burden mainly resulting from cognition-related symptoms. Certain NMS when present at the time of assessment or in the premotor stage, either alone or in combination, allowed discriminating PD from controls., (© 2014 International Parkinson and Movement Disorder Society.)
- Published
- 2015
- Full Text
- View/download PDF
129. [Changes introduced into the recent International Classification of Headache Disorders: ICHD-III beta classification].
- Author
-
Belvis R, Mas N, and Roig C
- Subjects
- Cranial Nerve Diseases classification, Facial Pain classification, Facial Pain etiology, Headache classification, Headache etiology, Humans, Neuralgia classification, Neuralgia etiology, Headache Disorders classification, International Classification of Diseases
- Abstract
Introduction: The International Headache Society (IHS) has published the third edition of the International Classification of Headache Disorders (ICHD-III beta), the most commonly used guide to diagnosing headaches in the world., Aims: To review the recent additions to the guide, to explain the new entities that appear in it and to compare the conditions that have had their criteria further clarified against the criteria in the previous edition., Development: We have recorded a large number of clarifications in the criteria in practically all the headaches and neuralgias in the classification, but the conditions that have undergone the most significant clarifications are chronic migraine, primary headache associated with sexual activity, short-lasting unilateral neuralgiform headache attacks, new daily persistent headache, medication-overuse headache, syndrome of transient headache and neurological deficits with cerebrospinal fluid lymphocytosis. The most notable new entities that have been incorporated are external-compression headache, cold-stimulus headache, nummular headache, headache attributed to aeroplane travel and headache attributed to autonomic dysreflexia. Another point to be highlighted is the case of the new headaches (still not considered entities in their own right) included in the appendix, some of the most noteworthy being epicrania fugax, vestibular migraine and infantile colic., Conclusions: The IHS recommends no longer using the previous classification and changing over to the new classification (ICHD-III beta) in healthcare, teaching and research, in addition to making this new guide as widely known as possible.
- Published
- 2015
130. HOSPITAL FINANCIAL PRESSURES AND THE HEALTH OF THE UNINSURED: WHO GETS HURT?
- Author
-
Mas N
- Subjects
- Humans, Models, Econometric, Quality Indicators, Health Care, Safety-net Providers economics, United States, Hospitals, Public economics, Managed Care Programs statistics & numerical data, Medically Uninsured statistics & numerical data, Quality of Health Care statistics & numerical data, Uncompensated Care economics
- Abstract
The increasing financial pressures of health care insurance coverage have become a key issue for advanced economies. This study tests whether hospital financial pressures have an effect on the health of the uninsured population. To do so, the author investigates the implications of managed care for the uninsured in the United States. Managed care penetration has increased financial pressures on hospitals, and previous work has shown that safety net hospitals have been affected more severely. The study results reveal that charity care patients concentrate in government hospitals in areas where financial pressures imposed by managed care are greater. In addition, the quality of care of these hospitals decreases more in areas where managed care penetration is stronger. Finally, the stronger financial pressures that managed care diffusion imposes have a negative effect on the quality of care the uninsured and those admitted to government hospitals receive.
- Published
- 2015
- Full Text
- View/download PDF
131. Towards the Development of Smart 3D "gated scaffolds" for on-command delivery.
- Author
-
Mas N, Arcos D, Polo L, Aznar E, Sánchez-Salcedo S, Sancenón F, García A, Marcos MD, Baeza A, Vallet-Regí M, and Martínez-Máñez R
- Subjects
- Adenosine Triphosphate chemistry, Anions, Gels chemistry, Hydrogen Bonding, Materials Testing, Microscopy, Electron, Scanning, Nanoparticles chemistry, Nanotechnology methods, Porosity, Regeneration, Silicon Dioxide chemistry, Tissue Engineering methods, X-Ray Diffraction, Biocompatible Materials chemistry, Drug Carriers, Drug Delivery Systems, Imaging, Three-Dimensional methods
- Abstract
A new approach towards the design of "gated scaffolds" based on the combination of capped mesoporous silica nanoparticles (MSNs) with porous biomaterials is reported. Using this approach, a 3D gelatin-based scaffold able to selectively deliver cargo in the presence of an APase enzyme is prepared and tested. This new design opens up the possibility of developing new smart biomaterials with advanced drug-delivery features., (© 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.)
- Published
- 2014
- Full Text
- View/download PDF
132. The volume of experimental design cerebellum: stereological microanatomic study.
- Author
-
Karabekir HS, Akosman MS, Gocmen-Mas N, Aksu F, Edizer M, Lenger OF, and Turkmenoglu I
- Subjects
- Animals, Microscopy methods, Microtomy methods, Models, Animal, Organ Size, Rabbits, Cerebellum anatomy & histology
- Abstract
Cerebellum is responsible to higher cognitive functions and delicate motor activity. Because of its significance, cerebellum may play a major role in cognitive, behavioral, and psychiatric diseases. Therefore, the investigations on cerebellum may be contributed to the future researches so as to solve reasons of the diseases. The rabbit brain relatively larger than the rat and mouse brain and the individual evaluation of its subdivisions are rather easy. There are no data on cerebellar volume of rabbits in literature. Thus, the study presents microscopic volume calculation of rabbits' cerebellum using the stereological method. The mean (SD) calculated volume of the cerebellum in the rabbit brain was found to be 0.69 (0.03) cm3. The individual microscopic volume estimation of an animal subject can be achieved by Cavalier method. Researchers believed that the findings and the applied method in this study may be useful for the scientists.
- Published
- 2014
- Full Text
- View/download PDF
133. The volume prediction on the experimental design hippocampus using stereological method.
- Author
-
Gocmen-Mas N, Akosman MS, Karabekir S, Turan Isik A, Mas MR, and Aksu F
- Subjects
- Aging pathology, Animals, Brain anatomy & histology, Microscopy methods, Models, Animal, Organ Size, Rabbits, Hippocampus anatomy & histology
- Abstract
The application of stereologic techniques to the analysis of the nervous system has greatly contributed to the evaluation of the normal and pathological anatomy of the aging brain. Currently, the hippocampus still holds secrets about the aging process. Experimental researches on hippocampus morphology may contribute to the future researches. This study presents the volume and weight of left hippocampus using a stereological technique on light microscope. The mean weight of the encephalon without cerebellum was 6.1 ± 0.1 g. The mean weight and the volume of the hippocampus were (mean ± SD) 0.28 ± 0.02 g and 0.28 ± 0.02 cm3, respectively. The mean coefficient of error for the stereological volume estimation of the hippocampus was 0.03. The individual volume estimation of the subjects may be achieved by the Cavalieri method. Investigators believed that the findings and the applied technique in this study may be useful for clinicians.
- Published
- 2014
- Full Text
- View/download PDF
134. Enzyme-responsive intracellular-controlled release using silica mesoporous nanoparticles capped with ε-poly-L-lysine.
- Author
-
Mondragón L, Mas N, Ferragud V, de la Torre C, Agostini A, Martínez-Máñez R, Sancenón F, Amorós P, Pérez-Payá E, and Orzáez M
- Subjects
- Cell Line, Tumor, Coloring Agents administration & dosage, Delayed-Action Preparations metabolism, HeLa Cells, Humans, Lysosomes enzymology, Nanoparticles metabolism, Nanoparticles ultrastructure, Polylysine metabolism, Porosity, Ruthenium administration & dosage, Silicon Dioxide metabolism, Delayed-Action Preparations chemistry, Nanoparticles chemistry, Polylysine chemistry, Silicon Dioxide chemistry
- Abstract
The synthesis and characterization of two new capped silica mesoporous nanoparticles for controlled delivery purposes are described. Capped hybrid systems consist of MCM-41 nanoparticles functionalized on the outer surface with polymer ε-poly-L-lysine by two different anchoring strategies. In both cases, nanoparticles were loaded with model dye molecule [Ru(bipy)3](2+). An anchoring strategy involved the random formation of urea bonds by the treatment of propyl isocyanate-functionalized MCM-41 nanoparticles with the lysine amino groups located on the ε-poly-L-lysine backbone (solid Ru-rLys-S1). The second strategy involved a specific attachment through the carboxyl terminus of the polypeptide with azidopropyl-functionalized MCM-41 nanoparticles (solid Ru-tLys-S1). Once synthesized, both nanoparticles showed a nearly zero cargo release in water due to the coverage of the nanoparticle surface by polymer ε-poly-L-lysine. In contrast, a remarkable payload delivery was observed in the presence of proteases due to the hydrolysis of the polymer's amide bonds. Once chemically characterized, studies of the viability and the lysosomal enzyme-controlled release of the dye in intracellular media were carried out. Finally, the possibility of using these materials as drug-delivery systems was tested by preparing the corresponding ε-poly-L-lysine capped mesoporous silica nanoparticles loaded with cytotoxic drug camptothecin (CPT), CPT-rLys-S1 and CPT-tLys-S1. Cellular uptake and cell-death induction were studied. The efficiency of both nanoparticles as new potential platforms for cancer treatment was demonstrated., (© 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.)
- Published
- 2014
- Full Text
- View/download PDF
135. Migraine attack treatment : a tailor-made suit, not one size fits all.
- Author
-
Belvis R, Mas N, and Aceituno A
- Subjects
- Animals, Habits, Humans, Life Style, Migraine Disorders psychology, Quality of Life, Anti-Inflammatory Agents, Non-Steroidal therapeutic use, Migraine Disorders drug therapy, Patents as Topic, Vasodilator Agents therapeutic use
- Abstract
About 15% of people in the world suffer migraine attacks. Migraine can induce a great impact in the quality of life, and the costs of medical care and loss of productivity can be also high. Non-steroidal anti-inflammatory drugs (NSAIDs) are the best treatment in mild-to-moderate migraine attacks and triptans are the first line option in the acute treatment of moderate-to-severe migraine attacks. At present, there are seven marketed triptans: sumatriptan, rizatriptan, zolmitriptan, eletriptan, naratriptan, almotriptan and frovatriptan. Obviously, every drug presents different pharmacokinetic and pharmacodynamics properties and, moreover, some triptans have several formulations. The prescription of one of these seven triptans for a specified patient is based in the drug profile: efficacy, safety, pharmacokinetics and pharmacodynamics. Other data to take account in the final prescription are clinical characteristics of the migraine attack (speed of onset, intensity of pain, lasting of the attack) and patient characteristics as working habits, life style or medical history. It is therefore mandatory to perform an individualization of the treatment of migraine attack. In recent years, several new patents of drugs have been registered in the treatment of migraine attack, although most of these are already known drugs that only provide new routes of administration. We present an update on the treatment of the migraine attack.
- Published
- 2014
- Full Text
- View/download PDF
136. Treatment of chronic migraine with intramuscular pericranial injections of onabotulinumtoxin a.
- Author
-
Belvis R and Mas N
- Subjects
- Adult, Botulinum Toxins, Type A administration & dosage, Chronic Disease, Double-Blind Method, Female, Humans, Injections, Intramuscular, Male, Treatment Outcome, Botulinum Toxins, Type A therapeutic use, Migraine Disorders drug therapy
- Abstract
Chronic migraine is the most frequent and disabling complication of migraine. To date, only two drugs have been specifically analysed for the treatment of chronic migraine, topiramate and onabotulinumtoxin A, and in the evidence-based medicine categories, they have achieved level of evidence I and as such, a grade of recommendation A according to current guidelines. Following the PREEMPT paradigm, pericranial intramuscular onabotulinumtoxin A injections show a good efficacy and safety in chronic migraine patients, both in phase III randomized clinical trials and in a pooled data analyses. Onabotulinumtoxin A injections reduce the number of days of headache and migraine, they reduce the consumption of triptans and disability, and improve the quality of life of migraine patients. For these reasons, onabotulinumtoxin type A is an option as valid as topiramate for the treatment of chronic migraine.
- Published
- 2014
- Full Text
- View/download PDF
137. Enhanced efficacy and broadening of antibacterial action of drugs via the use of capped mesoporous nanoparticles.
- Author
-
Mas N, Galiana I, Mondragón L, Aznar E, Climent E, Cabedo N, Sancenón F, Murguía JR, Martínez-Máñez R, Marcos MD, and Amorós P
- Subjects
- Anti-Bacterial Agents pharmacology, Drug Carriers chemistry, Drug Carriers pharmacology, Gram-Negative Bacteria drug effects, Microbial Sensitivity Tests, Polylysine chemistry, Porosity, Silicon Dioxide chemistry, Anti-Bacterial Agents chemistry, Nanoparticles chemistry, Vancomycin chemistry
- Abstract
Bug busters: A novel nanodevice consisting of mesoporous nanoparticles loaded with vancomycin and capped with ε-poly-L-lysine (ε-PL) was prepared and its interaction with different Gram-negative bacteria studied. A remarkable improvement in the efficacy of the antimicrobial drug ε-PL and a broadening of the antimicrobial spectrum of vancomycin is demonstrated., (Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.)
- Published
- 2013
- Full Text
- View/download PDF
138. Responding to financial pressures. The effect of managed care on hospitals' provision of charity care.
- Author
-
Mas N
- Subjects
- Cost Control, Health Facility Closure economics, Health Facility Closure statistics & numerical data, Humans, Medically Uninsured, Safety-net Providers economics, Safety-net Providers statistics & numerical data, United States, Economics, Hospital organization & administration, Economics, Hospital statistics & numerical data, Managed Care Programs economics, Uncompensated Care economics
- Abstract
Healthcare financing and insurance is changing everywhere. We want to understand the impact that financial pressures can have for the uninsured in advanced economies. To do so we focus on analyzing the effect of the introduction in the US of managed care and the big rise in financial pressures that it implied. Traditionally, in the US safety net hospitals have financed their provision of unfunded care through a complex system of cross-subsidies. Our hypothesis is that financial pressures undermine the ability of a hospital to cross-subsidize and challenges their survival. We focus on the impact of price pressures and cost-controlling mechanisms imposed by managed care. We find that financial pressures imposed by managed care disproportionately affect the closure of safety net hospitals. Moreover, amongst those hospitals that remain open, in areas where managed care penetration increases the most, they react by closing the health services most commonly used by the uninsured.
- Published
- 2013
- Full Text
- View/download PDF
139. Efficient biological process characterization by definitive-screening designs: the formaldehyde treatment of a therapeutic protein as a case study.
- Author
-
Erler A, de Mas N, Ramsey P, and Henderson G
- Subjects
- Research Design, Biological Products isolation & purification, Biological Products metabolism, Biotechnology methods, Proteins isolation & purification, Proteins metabolism, Technology, Pharmaceutical methods
- Abstract
As part of the process-characterization campaign of a candidate vaccine product, a recently developed class of three-level designs-definitive-screening designs-was employed to select a quadratic model that describes the effect of six input process parameters, including protein concentration, formaldehyde-to-protein ratio, lysine concentration, reaction duration, pH, and reaction temperature, on a formylation protein-crosslinking reaction. This design requires only 17 experimental runs. The resulting model was then used to simulate 10,000 runs that account for the variability in the inputs expected on manufacturing scale. The extent of protein polymerization was predicted to be within specifications for all simulated runs, demonstrating the robustness of the unit operation for subsequent process validation and future commercial manufacturing.
- Published
- 2013
- Full Text
- View/download PDF
140. Enzyme-responsive silica mesoporous supports capped with azopyridinium salts for controlled delivery applications.
- Author
-
Mas N, Agostini A, Mondragón L, Bernardos A, Sancenón F, Marcos MD, Martínez-Máñez R, Costero AM, Gil S, Merino-Sanjuán M, Amorós P, Orzáez M, and Pérez-Payá E
- Subjects
- Azo Compounds chemical synthesis, Azo Compounds toxicity, Cell Survival drug effects, HeLa Cells, Humans, MCF-7 Cells, Nanoparticles chemistry, Oxidoreductases chemistry, Porosity, Pyridinium Compounds chemical synthesis, Pyridinium Compounds toxicity, Rhodamines chemistry, Azo Compounds chemistry, Oxidoreductases metabolism, Pyridines chemistry, Pyridinium Compounds chemistry, Silicon Dioxide chemistry
- Abstract
The preparation of a new capped silica mesoporous material, Rh-Azo-S, for on-command delivery applications in the presence of target enzymes is described. The material consists of nanometric mesoporous MCM-41-like supports loaded with Rhodamine B and capped with an azopyridine derivative. The material was designed to show "zero delivery" and to display a cargo release in the presence of reductases and esterases, which are usually present in the colon, mainly due to intestinal microflora. The opening and cargo release of Rh-Azo-S in vitro studies were assessed and seen to occur in the presence of these enzymes, whereas no delivery was noted in the presence of pepsine. Moreover, Rh-Azo-S nanoparticles were used to study controlled Rhodamine B dye delivery in intracellular media. HeLa cells were employed for testing the "non"-toxicity of nanoparticles. Moreover, delivery of the dye in these cells, through internalization and enzyme-mediated gate opening, was confirmed by confocal microscopy. Furthermore, the nanoparticles capped with the Azo group and loaded with a cytotoxic camptothecin (CPT) were also prepared (solid CPT-Azo-S) and used as delivery nanodevices in HeLa cells. When this solid was employed, the cell viability decreased significantly due to internalization of the nanoparticles and delivery of the cytotoxic agent., (Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.)
- Published
- 2013
- Full Text
- View/download PDF
141. Azobenzene polyesters used as gate-like scaffolds in nanoscopic hybrid systems.
- Author
-
Bernardos A, Mondragón L, Javakhishvili I, Mas N, de la Torre C, Martínez-Máñez R, Sancenón F, Barat JM, Hvilsted S, Orzaez M, Pérez-Payá E, and Amorós P
- Subjects
- Drug Delivery Systems, HeLa Cells, Humans, Hydrogen-Ion Concentration, Porosity, Azo Compounds chemistry, Camptothecin chemistry, Camptothecin toxicity, Nanoparticles chemistry, Polyesters chemistry, Silicon Dioxide chemistry
- Abstract
The synthesis and characterisation of new capped silica mesoporous nanoparticles for on-command delivery applications is reported. Functional capped hybrid systems consist of MCM-41 nanoparticles functionalised on the external surface with polyesters bearing azobenzene derivatives and rhodamine B inside the mesopores. Two solid materials, Rh-PAzo8-S and Rh-PAzo6-S, containing two closely related polymers, PAzo8 and PAzo6, in the pore outlets have been prepared. Materials Rh-PAzo8-S and Rh-PAzo6-S showed an almost zero release in water due to steric hindrance imposed by the presence of anchored bulky polyesters, whereas a large delivery of the cargo was observed in the presence of an esterase enzyme due to the progressive hydrolysis of polyester chains. Moreover, nanoparticles Rh-PAzo8-S and Rh-PAzo6-S were used to study the controlled release of the dye in intracellular media. Nanoparticles were not toxic for HeLa cells and endocytosis-mediated cell internalisation was confirmed by confocal microscopy. Furthermore, the possible use of capped materials as a drug-delivery system was demonstrated by the preparation of a new mesoporous silica nanoparticle functionalised with PAzo6 and loaded with the cytotoxic drug camptothecin (CPT-PAzo6-S). Following cell internalisation and lysosome resident enzyme-dependent gate opening, CPT-PAzo6-S induced CPT-dependent cell death in HeLa cells., (Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.)
- Published
- 2012
- Full Text
- View/download PDF
142. Ocular and periocular injuries associated with an isolated orbital fracture depending on a blunt cranial trauma: anatomical and surgical aspects.
- Author
-
Karabekir HS, Gocmen-Mas N, Emel E, Karacayli U, Koymen R, Atar EK, and Ozkan N
- Subjects
- Adolescent, Adult, Aged, Aged, 80 and over, Cerebrospinal Fluid Rhinorrhea etiology, Contusions etiology, Edema etiology, Emphysema etiology, Enophthalmos etiology, Eye Injuries pathology, Eye Injuries surgery, Female, Fractures, Comminuted complications, Hematoma etiology, Humans, Male, Middle Aged, Optic Nerve Injuries etiology, Orbit innervation, Orbital Diseases pathology, Orbital Diseases surgery, Orbital Fractures pathology, Orbital Fractures surgery, Pneumocephalus etiology, Retrobulbar Hemorrhage etiology, Retrospective Studies, Treatment Outcome, Vision Disorders etiology, Wounds, Nonpenetrating pathology, Wounds, Nonpenetrating surgery, Young Adult, Zygomatic Fractures complications, Eye Injuries etiology, Orbital Diseases etiology, Orbital Fractures complications, Wounds, Nonpenetrating complications
- Abstract
The anatomical location of fractures following blunt cranio-orbital trauma is important for neurosurgeons and maxillofacial surgeons. In this study, 588 cranio-orbital fractures following blunt trauma were evaluated retrospectively with regard to the anatomical site and surgical treatment. Orbital cranial nerve injuries and the outcomes of the medical and/or surgical treatment are described. Distribution of the zygomatic complex and orbital fractures were as follows: zygomatic complex fractures (n:304), isolated orbital fractures (n:58), complex comminuted fractures (n:226). In 58 cases, 69 orbit fractures were found (11 bilateral and 47 unilateral fractures). The lateral wall was the most frequent fracture (n:63). The least frequent fracture was the roof of the orbit (n:11). The accompanying lesions were as follows: 89.65% of cases were associated with periorbital haematoma (n:52), 13.79% of cases with retrobulbar haemorrhage (n:8), 96.55% cases with periorbital soft tissue oedema (n:56), 53.45% cases with pneumocephalus (n:31), 8.62% cases with intra-parenchymal contusion (n:5), 6.89% cases with enophthalmia (n:4), 5.17% of cases with rhinorrhoea (n: 3), 5.17% cases with optic bulb injury and adnexial trauma (n:3), 32.76% cases with intra-orbital emphysema (n:19), and 20.69% with vision dysfunctions (n:12), of whom 2 had no optic nerve injury., (Copyright © 2011 European Association for Cranio-Maxillo-Facial Surgery. Published by Elsevier Ltd. All rights reserved.)
- Published
- 2012
- Full Text
- View/download PDF
143. Antiglycine-receptor encephalomyelitis with rigidity.
- Author
-
Mas N, Saiz A, Leite MI, Waters P, Baron M, Castaño D, Sabater L, Vincent A, and Graus F
- Subjects
- Adult, Antibodies blood, Encephalomyelitis complications, Female, HEK293 Cells, Humans, Male, Middle Aged, Muscle Rigidity complications, Myoclonus complications, Myoclonus immunology, Encephalomyelitis immunology, Muscle Rigidity immunology, Receptors, Glycine immunology
- Abstract
Background: Glycine receptor antibodies (GlyR-ab) were reported in a patient with progressive encephalomyelitis with rigidity and myoclonus (PERM)., Methods: Three additional patients were clinically described. GlyR-ab was detected with a cell-based assay of HEK293 cells transfected with the α1 subunit of the GyR., Results: A 33-year-old woman presented with diplopia, dysphagia and gait ataxia that improved in 5 weeks. Then, she developed a typical stiff-person syndrome (SPS) that resolved with corticosteroids, but relapsed 17 months later with a stiff limb syndrome. After treatment with intravenous immunoglobulins (IVIG), she has been asymptomatic for 8 years. A 60-year-old man developed, dysphagia, diplopia, left facial palsy and right trigeminal hypoaesthesia in a few days, followed by muscular rigidity, corticospinal signs, myoclonic jerks and severe dysautonomia. He developed seizures and suffered a cardiac arrest that left him in a persistent vegetative state. A 48-year-old man presented with leg rigidity and frequent spells of trismus, muscle spasms followed by opisthotonus and diaphoresis. The symptoms were antedated by pruritus of the left scapulae, right arm and T11-T12 dermatome. At the same time he became progressively more aggressive with emotional irritability. He also developed dysgeusia (metallic taste) and severe concurrent behavioural changes and diurnal hypersomnia. Only the rigidity and the spasms improved after therapy., Conclusions: The clinical picture associated with GlyR-ab is wider than the classical view of PERM. GlyR-ab should be examined in patients with core symptoms of muscle rigidity and spasms atypical for SPS.
- Published
- 2011
- Full Text
- View/download PDF
144. Stereological volumetric evaluation of the cerebellum in benign paroxysmal positional vertigo.
- Author
-
Gocmen-Mas N, Kahveci O, Karabekir S, Kusbeci OY, Altuntas A, and Yazici AC
- Subjects
- Adolescent, Adult, Aged, Atrophy, Benign Paroxysmal Positional Vertigo, Cerebellar Diseases complications, Female, Humans, Male, Middle Aged, Vertigo etiology, Young Adult, Cerebellar Diseases pathology, Cerebellum pathology, Vertigo pathology
- Abstract
Objective: To evaluate cerebellar volume changes and the asymmetry of patients with benign paroxysmal positional vertigo (BPPV)., Methods: The cerebellar hemispheres` volumetric symmetry were evaluated using a stereological method on MR images. The study included 15 patients with BPPV, and 14 age-, and gender-matched control subjects. The cases were admitted to the Departments of Otolaryngology, Neurology, and Neurosurgery in the Faculty of Medicine, Kocatepe University, Afyonkarahisar, Turkey with the complaint of vertigo between January 2004 and December 2008., Results: The right hemi cerebellum volumes of the subjects with BPPV and the controls were measured smaller than the left hemi cerebellar volumes, however, there was no statistically significant quantitative evidence detected in terms of cerebellar asymmetry between sagittal and axial plane estimates in the cases with vertigo. There was statistical significance between the right and left cerebellum in both the patient and control groups (p=0.023), however, the difference did not change according to gender. There were no statistically significant age and gender dependent cerebellar atrophy and asymmetry between BPPV and control subjects., Conclusion: There was no cerebellar atrophy and asymmetry between BPPV and age matched control groups. The stereological evaluation of hemi cerebellar symmetry and atrophy in humans is important for both clinicians and anatomists. The technique is simple, inexpensive, and reliable.
- Published
- 2011
145. Relation of discoid lateral meniscus and cord-like anterior intermeniscal ligament: morphological and clinical study.
- Author
-
Ozcanli H, Keles N, Gocmen-Mas N, Ozenci AM, and Aydin AT
- Subjects
- Adolescent, Adult, Arthroscopy, Child, Female, Humans, Joint Diseases pathology, Male, Middle Aged, Retrospective Studies, Young Adult, Joint Diseases etiology, Ligaments, Articular anatomy & histology, Menisci, Tibial pathology
- Abstract
Discoid lateral meniscus is a rare disorder and its association with other variations in the knee joint has been reported. The anterior intermeniscal ligament has also been described as connecting the anterior convex margin of the lateral meniscus to the anterior horn of the medial meniscus. In the normal population, it was observed at 53-94%. Although the functional properties of the anterior intermeniscal ligament are not yet clarified, two distinct types of the ligament have been described according to their morphological characteristics as cord-like and membranous types. The purpose of this study was to evaluate any possible association between morphologic types of anterior intermeniscal ligament and discoid lateral meniscus. A retrospective study was designed; 20 discoid lateral menisci were operated using routine arthroscopic examination. Upon arthroscopic examination the thickness of the ligament and associated morphological changes were recorded systematically. The cord-like anterior intermeniscal ligament was an associated structure in 15 of the 20 knees with discoid lateral meniscus (75%). Patients with discoid lateral meniscus apparently have cord-like type anterior intermeniscal ligament, thus we conclude that cord-like type of anterior intermeniscal ligament is a frequent accompanying structure to discoid lateral meniscus and may have a potential stabilizing effect on its anterior stability.
- Published
- 2011
- Full Text
- View/download PDF
146. Unusual scalp metastasis from follicular thyroid carcinoma.
- Author
-
Karabekir H, Polat C, Aktepe F, and Gocmen-Mas N
- Subjects
- Adenocarcinoma, Follicular, Aged, 80 and over, Carcinoma surgery, Female, Head and Neck Neoplasms pathology, Head and Neck Neoplasms surgery, Humans, Skin Neoplasms pathology, Skin Neoplasms surgery, Thyroid Neoplasms surgery, Carcinoma pathology, Carcinoma secondary, Head and Neck Neoplasms secondary, Scalp, Skin Neoplasms secondary, Thyroid Neoplasms pathology
- Abstract
Metastatic tumors presenting as soft tissue lesions are relatively rare, and can be the source of diagnostic confusion both clinically and histopathologically. We present a case of an 82-year-old woman with complaints of painless swelling in the right temporo-occipital junction for 3 months, and with unusual scalp metastasis of thyroid follicular carcinoma. Use of histopathological examinations are significant for determining the tumor type, and arriving at the exact and correct diagnosis.
- Published
- 2011
147. Congenital erythropoietic porphyria and Parkinson's disease: clinical association in a patient with a long-term follow-up.
- Author
-
Darwich E, Guilabert A, Aceituno A, Mas N, To-Figueras J, and Herrero C
- Subjects
- Disease Progression, Humans, Male, Middle Aged, Parkinson Disease diagnosis, Parkinson Disease etiology, Porphyria, Erythropoietic complications
- Published
- 2011
- Full Text
- View/download PDF
148. Lumbar vertebra morphometry and stereological assesment of intervertebral space volumetry: a methodological study.
- Author
-
Karabekir HS, Gocmen-Mas N, Edizer M, Ertekin T, Yazici C, and Atamturk D
- Subjects
- Adult, Computer Simulation, Female, Humans, Male, Imaging, Three-Dimensional methods, Lumbar Vertebrae anatomy & histology, Magnetic Resonance Imaging methods, Models, Anatomic
- Abstract
The use of technology in the treatment of degenerative spinal diseases has undergone rapid clinical and scientific development. It has been extensively studied in combination with various techniques for spinal stabilization from both the anterior and posterior approach. Minimally invasive and instrumental approach via posterior fixation is increasingly being used for the treatment of adult degenerative disc disease, stenosis, and deformity of the lumbar vertebrae. Posterior access to the lumbar disc spaces for posterolateral fusion scan has been technically challenging, frequently requiring the use of an approach surgery for adequate exposure. For successful surgery and suitable instrumental design, adequate anatomical knowledge of the lumbar vertebra is also needed. Anatomic features of lumbar vertebrae are of importance for posterior screw fixation technique. The morphometry of L1-L5 has been studied to facilitate the safe application of pedicle screws. Thus, we aimed to evaluate the morphometric landmarks of lumbar vertebrae such as pedicle, vertebral body, vertebral foramen, intervertebral space height and volume for safe surgical intervention using a posterior fixation approach to offer anatomical supports for lumbar discectomy, stenosis and cases of deformity. The features of the L1-L5 vertebral body, the detailed morphometric parameters of lumbar vertebrae and the intervertebral space were analyzed using computerized tomography scan, magnetic resonance imaging and also dry lumbar vertebrae. Additionally, intervertebral space volumes were measured using stereological methods to ensure safe surgical intervention., (Copyright © 2011 Elsevier GmbH. All rights reserved.)
- Published
- 2011
- Full Text
- View/download PDF
149. Evaluation of cerebellar and cerebral volume in migraine with aura: a stereological study.
- Author
-
Yilmaz-Kusbeci O, Gocmen-Mas N, Yucel A, Karabekir HS, Ertekin T, and Yazici AC
- Subjects
- Adult, Female, Humans, Image Interpretation, Computer-Assisted, Magnetic Resonance Imaging, Male, Middle Aged, Young Adult, Cerebellum pathology, Cerebral Cortex pathology, Migraine with Aura pathology
- Abstract
Migraine is associated with an increased risk of deep white matter lesions and subclinical posterior circulation infarcts. A significant association between deep white matter hyperintensities and cerebral atrophy is true for various neurological diseases; it was not specifically proven in migraine. The aim of this study was to evaluate the cerebellar and cerebral volume and volume ratios for cerebellum using the Cavalieri principle. We also aimed to examine whether migraine with aura causes cerebellar and cerebral atrophy. Twenty three right-handed patients with migraine with aura diagnosed by means of the International Headache Society criteria and 24 age-matched subjects whose only health problem was headache due to rhinosinusitis and tension type headache were included in the study. Measurements of the cerebellar and cerebral volumes as well as cerebellar/cerebral volume ratios were made using Cavalieri's principle by utilizing the point-counting methods. There were no significant differences between the volumes of cerebrum, cerebellum, and the ratio of cerebellum to cerebrum for males (p = 0.05, p = 0.10, and p = 0.64, respectively) and for females (p = 0.18, p = 0.89, and p = 0.24, respectively). Our results suggest that patients with migraine with aura do not have a significant difference in cerebellar and cerebral volumes and cerebellar/cerebral volume ratios compared to the non-migraine group.
- Published
- 2010
- Full Text
- View/download PDF
150. Dimensionality of three versions of the Eating Disorder Inventory in adolescent girls.
- Author
-
García-Grau E, Fusté A, Mas N, Gómez J, Bados A, and Saldaña C
- Subjects
- Adolescent, Chi-Square Distribution, Factor Analysis, Statistical, Female, Humans, Psychometrics, Surveys and Questionnaires, Feeding and Eating Disorders diagnosis, Psychiatric Status Rating Scales
- Abstract
Objectives: To analyze the dimensionality of three versions of the Eating Disorder Inventory (EDI) in adolescent girls., Method: The sample comprised 738 participants. The Spanish adaptation of the EDI-2 was used. The EDI-2 contains the 64 items of EDI and has the same items as EDI-3. The dimensional structures hypothesized by Garner for the three EDI versions were assessed via a series of Confirmatory Factor Analyses (CFAs)., Results: The CFA did not confirm Garner's proposed structure in any of the three versions. Consequently it was decided to perform Exploratory Factor Analyses (EFA) of the EDI-2 and the EDI-3 to try to identify the underlying structure. The best theoretical and empirical fit was provided by a 7-factor structure., Discussion: This article presents a shortened version of the EDI-2 which may prove more suitable for use with adolescent girls in the general population than the original questionnaire. Certain practical suggestions for optimizing the use of the different versions of the EDI are also presented., (Copyright 2010 John Wiley & Sons, Ltd and Eating Disorders Association.)
- Published
- 2010
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.