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1.
Cell Mol Neurobiol ; 43(4): 1499-1518, 2023 May.
Artículo en Inglés | MEDLINE | ID: mdl-35951210

RESUMEN

Neurodegeneration is among the most critical challenges that involve modern societies and annually influences millions of patients worldwide. While the pathophysiology of Parkinson's disease (PD) is complicated, the role of mitochondrial is demonstrated. The in vitro and in vivo models and genome-wide association studies in human cases proved that specific genes, including PINK1, Parkin, DJ-1, SNCA, and LRRK2, linked mitochondrial dysfunction with PD. Also, mitochondrial DNA (mtDNA) plays an essential role in the pathophysiology of PD. Targeting mitochondria as a therapeutic approach to inhibit or slow down PD formation and progression seems to be an exciting issue. The current review summarized known mutations associated with both mitochondrial dysfunction and PD. The significance of mtDNA in Parkinson's disease pathogenesis and potential PD therapeutic approaches targeting mitochondrial dysfunction was then discussed.


Asunto(s)
Enfermedad de Parkinson , Humanos , Enfermedad de Parkinson/tratamiento farmacológico , Enfermedad de Parkinson/genética , Proteínas Quinasas/genética , Estudio de Asociación del Genoma Completo , Mitocondrias/patología , ADN Mitocondrial , Ubiquitina-Proteína Ligasas/genética
2.
Neurol Sci ; 44(7): 2277-2289, 2023 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-36949298

RESUMEN

Parkinson's disease (PD) is a chronic, progressive, neurodegenerative disease. The predominant pathology of PD is the loss of dopaminergic cells in the substantia nigra. Cell transplantation is a strategy with significant potential for treating PD; mesenchymal stem cells (MSCs) are a tremendous therapeutic cell source because they are easily accessible. MSC-derived exosomes with potential protective action in lesioned sites serve as an essential promoter of neuroprotection, and neurodifferentiation, by modulating neural stem cells, neurons, glial cells, and axonal growth in vitro and in vivo environments. The biological properties of MSC-derived exosomes have been proposed as a beneficial tool in different pathological conditions, including PD. Therefore, in this review, we assort the current understanding of MSC-derived exosomes as a new possible therapeutic strategy for PD by providing an overview of the potential role of miRNAs as a component of exosomes in the cellular and molecular basis of PD.


Asunto(s)
Exosomas , Trasplante de Células Madre Mesenquimatosas , Células Madre Mesenquimatosas , Enfermedades Neurodegenerativas , Enfermedad de Parkinson , Humanos , Enfermedad de Parkinson/terapia , Enfermedad de Parkinson/patología , Exosomas/patología , Neuronas Dopaminérgicas/patología
3.
BMC Med Educ ; 23(1): 342, 2023 May 16.
Artículo en Inglés | MEDLINE | ID: mdl-37194002

RESUMEN

INTRODUCTION: With the advent of the COVID-19 pandemic, many higher education programs in Iran, including prosthetics and orthotics (P&O), had to shift to the online environment all at once. This unanticipated transition was challenging for the educational system. However, online education is superior in some aspects to conventional methods, and this situation may offer opportunities. This study was carried out from September 2021 to March 2022 to investigate the challenges and opportunities of online education in the P&O sector in Iran based on the opinions of students and faculty members. Relevant recommendations will also be discussed. METHODS: In this qualitative study, semi-structured interviews were conducted in both oral and written formats. Purposive and snowball sampling techniques were used to recruit undergraduate and postgraduate P&O students, as well as P&O faculty members, for this qualitative study. The data gathered from interviews with study participants were analyzed by thematic analysis. RESULTS: Based on the data analysis, many sub-themes of the three main themes were recognized: (1) challenges: technical, socioeconomic, environmental distractors, supervision and evaluation, workload, digital competence, interactions, motivation, sessions-related issues, class time, hands-on and clinical training; (2) opportunities: technological innovations, infrastructure development, flexible learning environment, student-centered learning, availability of contents, time and cost saving, high concentration, more self-confidence; (3) recommendations: technical infrastructure, team dynamics, hybrid courses, time management, awareness. CONCLUSION: Online education of P&O during the era of the COVID-19 pandemic was accompanied by a series of challenges. Technical issues and the gravity of hands-on training in this field were significant challenges. This era, however, provided the opportunity to facilitate the establishment of needed infrastructure and support technological innovations for online education. Considering hybrid (mixed online and on-site) courses was recommended to improve the quality of learning.


Asunto(s)
COVID-19 , Educación a Distancia , Humanos , COVID-19/epidemiología , Irán , Pandemias , Estudiantes
4.
Neuropsychol Rehabil ; 32(1): 51-68, 2022 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-32744132

RESUMEN

Purpose: This paper aims to present a bibliometric analysis of scientific documents in the field of traumatic brain injury rehabilitation.Methods: Web of Science was used to collect bibliographic data of traumatic brain injury rehabilitation documents from 1983 until the end of 2017.Results: Of a total of 6069 documents retrieved, 78.2% were journal articles. The average annual growth of the documents as of the year 2000 was 9.4%. The most frequent subject categories in this field were Rehabilitation, Neurosciences and Neurology, Sport Sciences, Psychology, and General and Internal Medicine. The most active journal was Brain Injury. More than 50% of the documents were published in 10 journals. The most prolific and impactful institutions were from the USA, Australia and Canada. Traumatic brain injury, rehabilitation, brain injury, stroke and outcome were the most commonly used keywords. Mild traumatic brain injury and concussion were the topics receiving attention in recent years.Conclusion: Traumatic brain injury rehabilitation is a young and constantly growing field. Since the late 1990s, traumatic brain injury rehabilitation documents published yearly comprised about 3-4% of all rehabilitation documents. It was shown that review papers and proceedings have more impact than journal articles, and collaborative papers receive more citations. It was also revealed that knowledge does not become obsolete rapidly in this field.


Asunto(s)
Bibliometría , Lesiones Traumáticas del Encéfalo , Australia , Humanos
5.
J Foot Ankle Surg ; 61(4): 867-871, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-34987006

RESUMEN

Foot pain has a significantly detrimental effect on mobility, function, and health status. Researchers have developed a number of measurement tools to assess foot health and its impact on quality of life. This study was conducted to translate the original English Manchester Foot Pain and Disability Index (MFPDI) into Persian and to examine the psychometric properties of the Persian version. A total of 206 patients with a range of foot disorders filled out the Persian version of the MFPDI and the Short-Form 36 Health Survey. The Persian version of the MFPDI was re-completed by the participants at an interval of 5 to 7 days. The analyses performed included internal consistency, test-retest reliability, construct validity, and floor and ceiling effect analysis. The Persian MFPDI had a good internal consistency (Cronbach's α ≥ 0.70) and test-retest reliability (intraclass correlation coefficient = 0.84). The construct validity of the Persian MFPDI was demonstrated to be acceptable as a result of its significantly strong negative correlations with the Short-Form 36 Health Survey. The results of this study showed that the Persian version of the MFPDI is a valid and reliable measure to assess foot-related disability.


Asunto(s)
Enfermedades del Pie , Calidad de Vida , Evaluación de la Discapacidad , Enfermedades del Pie/diagnóstico , Humanos , Irán , Dolor , Psicometría/métodos , Reproducibilidad de los Resultados , Encuestas y Cuestionarios
6.
Artículo en Inglés | MEDLINE | ID: mdl-35999939

RESUMEN

Background: Knee extension torque control decreases after anterior cruciate ligament (ACL) rupture. There is a controversy in neuromuscular control changes on the uninvolved side. We intended to evaluate the steadiness and accuracy of quadriceps muscle control in the healthy and deficient sides of people with acute ACL rupture. Methods: In this cross-sectional study, thirteen men with ACL rupture (age: 27.8±7.0, body mass index (BMI): 24.7±2.25: 24.7, days from injury: 48.1±21.3) participated in the study. We measured quadriceps force control, which is quantitatively assessed by the standard deviation (SD) of joint torque for a predefined submaximal target. The accuracy of muscular control or performance of quadriceps is commonly quantified by the root mean square of error (RMSE) was also measured. A two-way analysis of variance was conducted to assess SD and RMSE of two levels of quadriceps contraction (30% of muscle voluntary contraction (MVC), 50% of MVC) across both healthy and deficient knees. Results: There was a significant main effect for SD and RMSE of MVC percentage (p<0.001). SD of quadriceps torque in 50% of MVC (1.44 ± 0.13) was higher than 30% of MVC (0.88 ± 0.1). In contrast, there was no significant main effect for SD and RMSE of knee condition. Conclusion: After unilateral ACL rupture, the neuromuscular system becomes defected and quadriceps muscle control is then reduced in the healthy side. Therefore, the healthy side is also vulnerable to ligamentous damage. Besides, with the increasing intensity of physical activities, neuromuscular control decreases and the risk of re-injury rises.

7.
BMC Med Educ ; 21(1): 522, 2021 Oct 06.
Artículo en Inglés | MEDLINE | ID: mdl-34615507

RESUMEN

BACKGROUND: Supportive co-teaching (SCT) is the practice of employing two or more experts whose knowledge and experiences are needed simultaneously to make a connection across different disciplines in a classroom. Although this interdisciplinary approach seems to be beneficial, there are many features which need further examination. This study was conducted to systematically review studies addressing the use of this approach and learners' views on SCT in medical sciences. METHODS: We searched for the studies addressing students' views on SCT in medical sciences from January1st 2000 to June 31st, 2019. All the studies, both quantitative and qualitative published in English language, investigating the students' views on SCT, in non-clinical courses in the setting of medical sciences were included. We searched electronic databases of PubMed, Scopus, Embase, Web of Science, WHO Global Health Library, Health Systems Evidence, and ERIC with the keywords and phrases related to the topic which were: "co-teaching", "team teaching", "collaborative teaching", "peer-to-peer co-teaching", "partnership teaching", and" teacher collaboration". RESULTS: By the initial search, 9806 studies were found and after deletion of duplicates and screening, 111 remained for selection. Upon the independent review by two researchers, we were able to discern 12 studies eligible to be included for data extraction. All the studies reported positive views of the students towards SCT although some identified concerns and drawbacks. The students stated that they could better perceive the relationship between basic and clinical sciences, were more engaged in the learning process, and their learning experience was optimized in a course directed by SCT. CONCLUSION: Overall, the students showed positive views of this approach of teaching, and their grades indicated they learned better than expected. However, mismatch and lack of coordination between instructors would make the class distracting, confusing and even disturbing. Further studies investigating different variables related to teachers and students in SCT classes are suggested.


Asunto(s)
Estudios Interdisciplinarios , Estudiantes , Humanos
8.
Foot Ankle Surg ; 27(6): 688-692, 2021 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-32981850

RESUMEN

BACKGROUND: Foot pain has a significantly detrimental effect on mobility, function and health status. Researchers have developed a number of measurement tools to assess foot health and its impact on the quality of life. This study was conducted to translate the original English Manchester Foot Pain and Disability Index (MFPDI) into Persian and to examine the psychometric properties of the Persian version. METHODS: A total of 206 patients with a range of foot disorders filled out the Persian version of the MFPDI and the Short-Form 36 Health Survey (SF-36). The Persian version of the MFPDI was re-completed by the participants at an interval of five to seven days. The analyses performed included internal consistency, test-retest reliability, construct validity, and floor and ceiling effect analysis. RESULTS: The Persian MFPDI had a good internal consistency (Cronbach's α≥0.70) and test-retest reliability (ICC=0.84). The construct validity of the Persian MFPDI was demonstrated to be acceptable as a result of its significantly strong negative correlations with the SF-36. CONCLUSION: The results of this study showed that the Persian version of the MFPDI is a valid and reliable measure to assess foot-related disability.


Asunto(s)
Evaluación de la Discapacidad , Calidad de Vida , Humanos , Irán/epidemiología , Dolor , Psicometría , Reproducibilidad de los Resultados , Encuestas y Cuestionarios
9.
Clin Rehabil ; 34(2): 145-159, 2020 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-31822115

RESUMEN

OBJECTIVE: The aim of this study was to evaluate the effects of ankle-foot orthoses on speed walking in patients with stroke. DATA SOURCES: PubMed, Embase, Web of Science, Scopus, CENTRAL, PEDro, RehabData, RECAL, and ProQuest were searched from inception until 30 September 2019. REVIEW METHODS: This study was conducted in accordance with the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guideline statement. Risk of bias assessment was performed using the Cochrane Risk of Bias Tool. Begg's test and Egger's regression method were used to assess the publication bias. Trim and fill analysis was also used to adjust any potential publication bias. Sensitivity analysis was performed to evaluate the effect of individual studies. The quality of evidence was assessed using the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) criteria. RESULTS: Overall, 14 studies were included with a total of 1186 participants. A small-to-moderate and non-significant improvement in favor of the ankle-foot orthosis versus without ankle-foot orthosis (standardized mean difference (SMD) = 0.41, 95% confidence interval = -0.15 to 0.96), similar effects of ankle-foot orthosis and functional electrical stimulation (SMD = 0.00, 95% confidence interval = -0.16 to 0.16), and a small and non-significant improvement in favor of ankle-foot orthosis versus another type of ankle-foot orthosis (SMD = 0.22, 95% confidence interval = -0.05 to 0.49) in walking speed were found. However, the quality of evidence for all comparisons was low or very low. CONCLUSION: Despite reported positive effects in some studies, there is no firm evidence of any benefit of ankle-foot orthoses on walking speed.


Asunto(s)
Ortesis del Pié , Rehabilitación de Accidente Cerebrovascular , Accidente Cerebrovascular/fisiopatología , Velocidad al Caminar , Tobillo , Femenino , Pie , Humanos , Masculino , Ensayos Clínicos Controlados Aleatorios como Asunto
10.
Med J Islam Repub Iran ; 34: 173, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-33816372

RESUMEN

Background: Drop foot syndrome is a disorder characterized by foot slapping after the initial contact and foot-dragging during the swing phase. Passive and hybrid passive ankle foot orthoses (AFOs) are often prescribed in these patients; however, the effects of these AFO designs on kinematic parameters during gait are unclear. The aim of this study was to compare the effect of innovative designed storing-restoring hybrid passive AFOs versus posterior leaf spring AFO on ankle joint kinematics in drop foot patients. Methods: The present study was a case series where a single case and 3 cases with drop foot syndrome were recruited. This study was designed in 2 phases: the baseline phase with their PLS AFOs and an intervention phase in which innovative designed AFO were assessed. Each phase included 5 measurement sessions which were performed in 5 consecutive weeks. The celeration line method was used to detect the significant differences between the phases. Results: The results of this study showed a significant increase in the kinematic angles parameters at the initial contact, the loading response, the mid stance, terminal stance, pre swing, initial swing, mid swing, and terminal swing with the innovative designed AFO than with PLS AFO (p<0.05). Conclusion: The results of the present study suggested that use of the innovative designed AFO may have a positive effect on ankle joint kinematics parameters in people with drop foot.

11.
Med J Islam Repub Iran ; 34: 115, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-33315978

RESUMEN

Background: Ankle Foot Orthosis (AFOs) are frequently prescribed in the management of drop-foot patients. However, few studies have examined the benefits of different design of Ankle Foot Orthosis with extra elements like dampers or springs. Therefore, the objective of this study was to investigate the efficacy of articulated Ankle Foot Orthosis with Hydra pneumatic damper, in kinetic, kinematic and spatiotemporal parameters of drop foot patients. Methods: Ten drop foot patients were recruited for this study, walked at self-selected comfortable speed. A three-dimensional motion analysis, were used for obtaining kinetic, spatio-temporal and kinematic gait parameters. Results: The articulated Ankle Foot Orthosis with Hydra pneumatic damper was significantly improved speed, cadence, step length of walking (p<0.005). Furthermore, the peak and mean of moment, push off velocity and energy storing/returning were significantly improved by articulated Ankle Foot Orthosis with Hydra pneumatic damper (p<0.005). Conclusion: The newly designed articulated Ankle Foot Orthosis with Hydra pneumatic damper improved the ankle moment in at the loading response, power generation and the ankle range in drop foot patient.

12.
Pak J Med Sci ; 35(5): 1248-1252, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31488987

RESUMEN

BACKGROUND & OBJECTIVE: Endotracheal intubation is routinely performed in the critical situations. In order to prevent microaspiration and tracheal injury endotracheal cuff pressure is important to remain constant between 20 and 30 cmH2O. Positive pressure ventilation, duration of intubation, body temperature, and body movements can alter endotracheal cuff pressure. This survey was conducted to evaluate core body temperature and cuff pressure relation with airway pressure simultaneously. METHODS: This was a descriptive analytic study conducted from March 2018 to July 2018 on 150 intubated patients in the emergency department. All were ventilated with SIMV mode and had Ramsi sedation level of 2-3. Mean airway pressure was measured simultaneouly with core body temperature measurement from ventilator monitor. All these parameters were measured 10 times each hour and documented. RESULTS: There was a statistically meaningful relation between airway pressure and cuff pressure in the primary evaluation (P=0.02, r=0.19), while none of the subsequent evaluations showed meaningful relation (P>0.05). No significant relation was found between cuff pressure and core body temperature in any of the measurements (P>0.05). CONCLUSION: The pressure of cuff should be checked repeatedly after intubation because of substantial variation over time. Factors other than core body temperature and airway pressure can influence cuff pressure.

13.
Dev Biol ; 417(1): 25-39, 2016 09 01.
Artículo en Inglés | MEDLINE | ID: mdl-27432513

RESUMEN

A transposon-mediated gene trap screen identified the zebrafish line qmc551 that expresses a GFP reporter in primitive erythrocytes and also in haemogenic endothelial cells, which give rise to haematopoietic stem and progenitor cells (HSPCs) that seed sites of larval and adult haematopoiesis. The transposon that mediates this GFP expression is located in intron 1 of the gfi1aa gene, one of three zebrafish paralogs that encode transcriptional repressors homologous to mammalian Gfi1 and Gfi1b proteins. In qmc551 transgenics, GFP expression is under the control of the endogenous gfi1aa promoter, recapitulates early gfi1aa expression and allows live observation of gfi1aa promoter activity. While the transposon integration interferes with the expression of gfi1aa mRNA in haematopoietic cells, homozygous qmc551 fish are viable and fertile, and display normal primitive and definitive haematopoiesis. Retained expression of Gfi1b in primitive erythrocytes and up-regulation of Gfi1ab at the onset of definitive haematopoiesis in homozygous qmc551 carriers, are sufficient to allow normal haematopoiesis. This finding contradicts previously published morpholino data that suggested an essential role for zebrafish Gfi1aa in primitive erythropoiesis.


Asunto(s)
Elementos Transponibles de ADN/genética , Proteínas de Unión al ADN/biosíntesis , Eritrocitos/citología , Eritropoyesis/genética , Células Madre Hematopoyéticas/citología , Proteínas de Pez Cebra/biosíntesis , Pez Cebra/embriología , Animales , Animales Modificados Genéticamente , Secuencia de Bases , Diferenciación Celular , Subunidad alfa 2 del Factor de Unión al Sitio Principal/biosíntesis , Proteínas de Unión al ADN/genética , Eritrocitos/metabolismo , Regulación del Desarrollo de la Expresión Génica , Proteínas Fluorescentes Verdes/genética , Regiones Promotoras Genéticas/genética , ARN Mensajero/biosíntesis , Receptores Notch/genética , Receptores Notch/metabolismo , Factor A de Crecimiento Endotelial Vascular/genética , Factor A de Crecimiento Endotelial Vascular/metabolismo , Pez Cebra/genética , Proteínas de Pez Cebra/genética
14.
J Relig Health ; 56(2): 428-436, 2017 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-26923839

RESUMEN

This study aimed to assess using tree-based models the impact of different dimensions of religion and other risk factors on suicide attempts in the Islamic Republic of Iran. Three hundred patients who attempted suicide and 300 age- and sex-matched patient attendants with other types of disease who referred to Kerman Afzalipour Hospital were recruited for this study following a convenience sampling. Religiosity was assessed by the Duke University Religion Index. A tree-based model was constructed using the Gini Index as the homogeneity criterion. A complementary discrimination analysis was also applied. Variables contributing to the construction of the tree were stressful life events, mental disorder, family support, and religious belief. Strong religious belief was a protective factor for those with a low number of stressful life events and those with a high mental disorder score; 72 % of those who formed these two groups had not attempted suicide. Moreover, 63 % of those with a high number of stressful life events, strong family support, strong problem-solving skills, and a low mental disorder score were less likely to attempt suicide. The significance of four other variables, GHQ, problem-coping skills, friend support, and neuroticism, was revealed in the discrimination analysis. Religious beliefs seem to be an independent factor that can predict risk for suicidal behavior. Based on the decision tree, religious beliefs among people with a high number of stressful life events might not be a dissuading factor. Such subjects need more family support and problem-solving skills.


Asunto(s)
Adaptación Psicológica , Árboles de Decisión , Religión y Psicología , Prevención del Suicidio , Suicidio/psicología , Adulto , Femenino , Humanos , Irán , Masculino , Factores Protectores , Factores de Riesgo , Población Urbana , Adulto Joven
15.
Med J Islam Repub Iran ; 30: 341, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27390711

RESUMEN

BACKGROUND: Creating a socket with proper fit is an important factor to ensure the comfort and control of prosthetic devices. Several techniques are commonly used to cast transtibial stumps but their effect on stump shape deformation is not well understood. This study compares the dimensions, circumferences and volumes of the positive casts and also the socket comfort between two casting methods. Our hypothesis was that the casts prepared by air pressure method have less volume and are more comfortable than those prepared by weight bearing method. METHODS: Fifteen transtibial unilateral amputees participated in the study. Two weight bearing and air pressure casting methods were utilized for their residual limbs. The diameters and circumferences of various areas of the residual limbs and positive casts were compared. The volumes of two types of casts were measured by a volumeter and compared. Visual Analogue Scale (VAS) was used to measure the sockets fit comfort. RESULTS: Circumferences at 10 and 15 cm below the patella on the casts were significantly smaller in air pressure casting method compared to the weight bearing method (p=0.00 and 0.01 respectively). The volume of the cast in air pressure method was lower than that of the weight bearing method (p=0.006). The amputees found the fit of the sockets prepared by air pressure method more comfortable than the weight bearing sockets (p=0.015). CONCLUSION: The air pressure casting reduced the circumferences of the distal portion of residual limbs which has more soft tissue and because of its snug fit it provided more comfort for amputees, according to the VAS measurements.

16.
Prosthet Orthot Int ; 48(2): 230-239, 2024 Apr 01.
Artículo en Inglés | MEDLINE | ID: mdl-37615619

RESUMEN

PURPOSE: This study investigated the barriers, challenges, and facilitators in receiving prosthetic services in people with lower limb amputation during Covid-19 pandemic. MATERIALS AND METHODS: In this qualitative study, we conducted in-depth semistructured face-to-face interviews with individuals with lower limb amputation who needed prosthetic services during Covid-19 pandemic. We discussed about challenges and barriers that the participants had encountered during this period. The collected data were analyzed using a conceptual framework. RESULTS: Six broad themes of availability, accessibility, acceptability, affordability, accommodation, and awareness emerged from the analysis. Staff shortage, lack of remote services, accommodation, insurance and governmental support, and cost of services were the main concerns. Moreover, long waiting lists, postponed referrals, noncompliance with Covid-19 protocols and preventive measures, and lockdowns were the other important concerns that were noted. In addition, unsatisfactory services in hometown, distance to capital, transportation permit in lockdowns, traffic jam, and public transport problems were other reasons of service not being accessible. The positive aspects were the facilitators such as having home visits, social work and charity, and using private drive services. CONCLUSION: It seems that after the beginning of Covid-19 pandemic, people with lower limb amputation have faced more drastic challenges in accessing and receiving prosthetic services than in the prepandemic situations.


Asunto(s)
COVID-19 , Accesibilidad a los Servicios de Salud , Humanos , Pandemias , Países en Desarrollo , Control de Enfermedades Transmisibles , Amputación Quirúrgica , Extremidad Inferior
17.
Physiother Theory Pract ; : 1-10, 2024 Feb 23.
Artículo en Inglés | MEDLINE | ID: mdl-38391279

RESUMEN

BACKGROUND: In hallux valgus, morphological changes and functional weakness of intrinsic foot muscles occur, especially in the abductor hallucis muscle. OBJECTIVES: This study aimed to investigate how a conservative treatment with the addition of neuromuscular electrical stimulation affects the volume and strength of the muscle, the correction of deformity, passive range of motion, pain, and disability. METHODS: Twenty-eight female participants (48 feet) were randomly assigned to two groups. The interventions included orthoses and exercise (Ortho) in both groups. One group received additional neuromuscular electrical stimulation of abductor hallucis muscle to activate it. Each group received the treatments for one month and was assessed two times, at baseline before starting and after one month of treatment. Mixed within-between ANOVA, analysis of covariance, and nonparametric tests were used for data analysis. RESULTS: The muscle volume, abduction strength, goniometric angle, and passive hallux dorsi/plantar flexion showed significant changes in both groups (p < .001). Subscales of the foot and ankle ability questionnaire, significantly changed (p ≤ .05). Pain decreased significantly in the two groups (p < .001 and p = .02). Intermetatarsal angle did not significantly differ between the two groups (p = .86, partial eta effect size = 0.001). But, the hallux valgus angle mean (on MRI) in the Ortho group was less than that of the orthoNMES group (p = .007, partial eta effect size = 0.15). CONCLUSION: Both groups showed nearly identical treatment effects in the primary volume and hallux valgus correction outcome measures. In this study, adding neuromuscular electrical stimulation did not have an additional effect compared to conservative in the treatment of hallux valgus. TRIAL REGISTRATION NUMBER: The RCT Code is IRCT20200915048725N1.

18.
Multimed Tools Appl ; : 1-18, 2023 Mar 29.
Artículo en Inglés | MEDLINE | ID: mdl-37362725

RESUMEN

Text mining methods usually use statistical information to solve text and language-independent procedures. Text mining methods such as polarity detection based on stochastic patterns and rules need many samples to train. On the other hand, deterministic and non-probabilistic methods are easy to solve and faster than other methods but are not efficient in NLP data. In this article, a fast and efficient deterministic method for solving the problems is proposed. In the proposed method firstly we transform text and labels into a set of equations. In the second step, a mathematical solution of ill-posed equations known as Tikhonov regularization was used as a deterministic and non-probabilistic way including additional assumptions, such as smoothness of solution to assign a weight that can reflect the semantic information of each sentimental word. We confirmed the efficiency of the proposed method in the SemEval-2013 competition, ESWC Database and Taboada database as three different cases. We observed improvement of our method over negative polarity due to our proposed mathematical step. Moreover, we demonstrated the effectiveness of our proposed method over the most common and traditional machine learning, stochastic and fuzzy methods.

19.
Health Sci Rep ; 6(3): e1130, 2023 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-36875933

RESUMEN

Background and Aims: Given the importance of systematic reviews (SRs) for practitioners, researchers, and policymakers, it is essential to assess them to ensure robust methodology and reliable results before applying them. The purpose of this methodological study was to assess the methodological and reporting quality of recently published SRs and/or meta-analyses (MAs) evaluating the effects of ankle-foot orthoses (AFOs) on clinical outcomes in stroke survivors. Methods: PubMed, Scopus, Web of Science, Embase, ProQuest, CENTRAL, REHABDATA, and PEDro were searched. The research team applied A Measurement Tool to Assess Systematic Reviews 2 (AMSTAR-2) tool and Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) checklist for evaluating the reporting and methodological quality, respectively, and the ROBIS tool was used to evaluate the risk of bias (RoB) in the included reviews. The quality of the evidence was also judged using the (Grades of Recommendation, Assessment, Development and Evaluation) GRADE method. Results: In final, 14 SRs/MAs met inclusion criteria. Evaluation of methodological quality using the AMSTAR-2 tool demonstrated that the overall quality of included reviews was mostly "critically low" or "low," except for two studies that were "high." In addition, the findings showed that the mean score of the reporting quality of the included reviews based on the PRISMA criteria was 24.9, down from 42. In accordance with the overall evaluation applying the ROBIS tool, 14.3% of the review studies were evaluated as high RoB, 64.3% were evaluated as unclear RoB, and 21.4% were evaluated as low RoB. Regarding the level of evidence quality, the GRADE results indicated that the evidence quality of the included reviews was unsatisfactory. Conclusion: This study showed that although the reporting quality of recently published SR/MAs evaluating the clinical effects of AFOs in stroke survivors was moderate, the methodological quality of almost all reviews was suboptimal. Therefore, reviewers must consider a number of criteria in designing, conducting, and reporting their studies to move toward transparent and conclusive results.

20.
Q J Exp Psychol (Hove) ; 76(11): 2650-2663, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-36691387

RESUMEN

A top-down attentional set can persist from a relevant task to an irrelevant task, influencing allocation of attentional resources, visual search, and performance. While this "carry-over" effect has been found across numerous experiments, past studies have utilised paradigms that present similar tasks to the same spatial location. The present research explored whether attentional settings persist in more dynamic situations. In Experiment 1, participants played a computer game that encouraged a horizontal, vertical, or random spread of search. After 10 or 30 s, they moved 90° to their right and monitored a driving video for hazards. Eye movements to the videos were not affected by the characteristics of the preceding game, revealing no carry-over of attentional settings. One possible explanation for this was the visuospatial shift between the tasks. To explore this further, Experiment 2 adopted a similar paradigm to previous research; participants searched horizontal, vertical, or random letter strings before completing an image search. In one block the tasks were presented to the same screen, and in one block the tasks were presented to different screens (incorporating a 90° visuospatial shift mid-trial). Carry-over was found in the one-screen block, with a significantly wider horizontal search and a narrower vertical search in the pictures after a horizontal letter search. However, there was no carry-over from the letter to the picture task in the two-screen block. This indicates the flexibility of attentional control in dynamic situations, and it is suggested that persistence of attentional settings will be most costly under stable conditions.


Asunto(s)
Atención , Movimientos Oculares , Humanos
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