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1.
Appetite ; 199: 107405, 2024 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-38723668

RESUMO

Current concerns regarding the health and environmental consequences associated with excessive meat consumption have underscored the importance of guiding consumers towards more sustainable diets. Given this perspective, this study seeks to evaluate the effectiveness of tailored informative messages in shaping consumer behaviour, particularly within the framework of replacing meat with mushroom-based alternatives. Additionally, it explores the factors influencing informative message effectiveness. An experimental online survey was conducted on a sample of 951 Italian consumers. Specifically, the sample was divided into three groups, of which 309 individuals formed the control group, 311 participants received informative messages on the health risks associated with red meat consumption, and 331 participants received informative messages emphasizing the environmental damages linked to red meat consumption. In both treatments, there was support for mushroom-based alternatives. Analyses included subgroup assessments, tests to verify treatments effectiveness, along with OLS regression to pinpoint variables influencing message effectiveness. The results underscore a fair positive impact of the two informative messages (mean scores: 8.75 for health message; 7.01 for environmental message). Noteworthy psychosocial variables, including lifestyle patterns, nutritional perceptions, and ecological attitudes, emerged as determinants in shaping consumers' food choices. While health-related messages exhibit marked influence, the nuanced landscape of diverse drivers and barriers necessitates judicious communication strategies. These insights bear significance for policymakers, health professionals, and marketers, offering guidance for interventions that effectively influence consumer behaviour toward more sustainable and healthier food practices.


Assuntos
Agaricales , Comportamento do Consumidor , Preferências Alimentares , Carne Vermelha , Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Itália , Preferências Alimentares/psicologia , Adulto Jovem , Comportamento de Escolha , Inquéritos e Questionários , Conhecimentos, Atitudes e Prática em Saúde , Promoção da Saúde/métodos , Adolescente , Dieta , Idoso
2.
Biomedicines ; 11(5)2023 May 15.
Artigo em Inglês | MEDLINE | ID: mdl-37239120

RESUMO

Traumatic brain injury (TBI) is defined as an altered brain structure or function produced by an external force. Adults surviving moderate and severe TBI often experience long-lasting neuropsychological and neuropsychiatric disorders (NPS). NPS can occur as primary psychiatric complications or could be an exacerbation of pre-existing compensated conditions. It has been shown that changes in behavior following moderate to severe TBI have a prevalence rate of 25-88%, depending on the methodology used by the different studies. Most of current literature has found that cognitive behavioral and emotional deficit following TBI occurs within the first six months whereas after 1-2 years the condition becomes stable. Identifying the risk factors for poor outcome is the first step to reduce the sequelae. Patients with TBI have an adjusted relative risk of developing any NPS several-fold higher than in the general population after six months of moderate-severe TBI. All NPS features of an individual's life, including social, working, and familiar relationships, may be affected by the injury, with negative consequences on quality of life. This overview aims to investigate the most frequent psychiatric, behavioral, and emotional symptoms in patients suffering from TBI as to improve the clinical practice and tailor a more specific rehabilitation training.

3.
Am J Otolaryngol ; 44(4): 103912, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37167857

RESUMO

OBJECTIVES: The main aim of this study is to analyze the possible differences between clinical, demographic or genetic characteristics, in Cystic Fibrosis (CF) patients with chronic rhinosinusitis (CRS) with different phenotype. The secondary objective is to describe the possible benefit of surgery with Centripetal Endoscopic Sinus Surgery (CESS). METHODS: The study includes 56 who performed CT scan of the paranasal sinuses. They were divided in 3 group according to phenotype: CRS without Nasal Polyps (NP); CRS with NP; CRS complicated with Mucocele. The clinical symptoms, age, gender, genotype, microbial colonization and pulmonary disease stage were collected and analyzed to assess possible statistically significant differences. Regarding the 7 patients who performed CESS surgery, the number of hospitalizations, intravenous (iv) antibiotic courses, respiratory exacerbations, the FEV1, the Lund-Mackay Score (LMS) and the SNOT 22 were evaluated before and 1 year after surgery. RESULTS: No statistically significant differences regarding clinical symptoms between the 3 groups were identified (p > 0.05). Furthermore, there were no differences in age, gender, genotype, microbial colonization and pulmonary disease stage (p > 0.05). Regarding the patients who performed CESS, no significative difference in FEV1 progression was found. A reduction in hospitalization, pulmonary exacerbation and in the number of iv antibiotic courses resulted statistically significant different (p = 0.004; <0.001 and <0.001 respectively). A significant improvement in SNOT-22 and LMS (p < 0.001) was obtained. CONCLUSION: Radiological monitoring of the rhinosinus disease is necessary regardless of the clinical expression of the disease. The presence of CRS with NP complicated by mucocele is frequent and independent of the patient's age and clinical manifestations. An extensive surgical approach could represent the gold standard for patients with CF in consideration of the potential important advantages to perform a total toilet of all the sinuses and nasal cavities and at the same time eliminating a potential microbiological reservoir.


Assuntos
Fibrose Cística , Mucocele , Pólipos Nasais , Seios Paranasais , Rinite , Sinusite , Humanos , Fibrose Cística/complicações , Fibrose Cística/cirurgia , Rinite/complicações , Rinite/cirurgia , Rinite/diagnóstico , Seios Paranasais/diagnóstico por imagem , Seios Paranasais/cirurgia , Sinusite/complicações , Sinusite/cirurgia , Sinusite/diagnóstico , Endoscopia/métodos , Pólipos Nasais/complicações , Pólipos Nasais/cirurgia , Doença Crônica , Antibacterianos/uso terapêutico
4.
Meat Sci ; 199: 109135, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-36796286

RESUMO

A reduction of meat consumption is crucial for addressing public health problems, especially in industrialized countries. Among low-cost interventions, emotionally provocative health-information strategies could be effective options in fostering meat reduction. Through an online experimental survey, administrated to a quota-based national sample (N = 1142), this study analysed the profile of Italians consuming red/processed meat above World Health Organization (WHO) recommended amounts. Via a between-subjects design, the research tested whether two health frame-nudges (societal impact and individual impact of over consumption) persuaded these individuals to reduce future meat consumption. Results showed that adhering to an omnivore diet, higher consumption of meat than peers, household size (larger) and positive moral perception of meat consumption increased the likelihood of overconsumption. In addition, both nudges proved to be effective in positively impacting future intentions to reduce meat consumption among individuals exceeding WHO recommended amounts. The two frame-nudges were more effective among females, respondents with children in the household and individuals with a low health status perception.


Assuntos
Carne , Carne Vermelha , Feminino , Criança , Humanos , Dieta , Inquéritos e Questionários , Itália
5.
Viruses ; 14(9)2022 08 24.
Artigo em Inglês | MEDLINE | ID: mdl-36146672

RESUMO

INTRODUCTION: Although the understanding of several aspects of long COVID-19 syndrome is increasing, there is limited literature regarding the treatment of these signs and symptoms. The aim of our systematic review was to understand which therapies have proved effective against the symptoms of long COVID-19. METHODS: A systematic search for randomized controlled or clinical trials in several databases was conducted through 15 May 2022. Specific inclusion criteria included: (1) intervention studies, either randomized controlled (RCTs) or clinical trials; (2) diagnosis of long COVID-19, according to the World Health Organization criteria; (3) presence of long COVID-19 for at least 12 weeks after SARS-CoV-2 infection. RESULTS: We initially found 1638 articles to screen. After removing 1602 works based on their title/abstract, we considered 35 full texts, and among them, two intervention studies were finally included. The first RCT focused on the greater improvement of treatment combining olfactory rehabilitation with oral supplementation with Palmitoylethanolamide and Luteolin in patients with olfactory dysfunction after COVID-19. The second study evaluated the positive impact of aromatherapy vs. standard care in adult females affected by fatigue. CONCLUSION: Our systematic review found only two intervention studies focused on patients affected by long COVID-19. More intervention studies are needed to investigate potentially positive interventions for long COVID-19 symptoms.


Assuntos
COVID-19 , Adulto , COVID-19/complicações , COVID-19/terapia , Feminino , Humanos , Luteolina , SARS-CoV-2 , Síndrome de COVID-19 Pós-Aguda
6.
Acta Histochem ; 123(4): 151715, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-33940317

RESUMO

Ulcerative colitis is a chronic inflammatory condition of the gastrointestinal tract that can affect people of worldwide. In contrast with Crohn's disease, that can relate the entire thickness of the bowel wall, the inflammation of ulcerative colitis is limited to the colonic mucosa. Immune cells including activated T cells, plasma cells, mast cells, macrophages, and dendritic cells (DCs) trigger the inflammation. Furthermore, dendritic cells are antigen presenting cells involved in maintaining intestinal immune homeostasis. It has been described an increment of number in DCs colonic mucosa of patients with ulcerative colitis. The immune cells such as antigen-presenting cells can act as autocrine or paracrine modulators. Recent studies showed that dendritic cells synthetized and released classical neurotransmitters as glutamate, dopamine, acetylcholine, and serotonin. Paraformaldehyde-fixed intestinal tissues, obtained from the stricture sites of ten patients with ulcerative colitis were analyzed by immunostaining for Langerin/CD207, serotonin and vesicular acetylcholine transporter. As controls, unaffected (normal) portions of five patients were also investigated. Aim of this study was to characterize for the first time the human gut dendritic cells of ulcerative colitis patients, with Langerin/CD207 that is a c-type lectin expressed by different types of DCs and to colocalize in the same cells the expression of serotonin and vesicular acetylcholine transporter, showing the link between dendritic cells, gut enterochromaffin cells or autonomic nerves in immune activation and generation of intestinal inflammation.


Assuntos
Colite Ulcerativa/metabolismo , Células Dendríticas/metabolismo , Regulação da Expressão Gênica , Serotonina/biossíntese , Proteínas Vesiculares de Transporte de Acetilcolina/biossíntese , Adolescente , Adulto , Colite Ulcerativa/patologia , Células Dendríticas/patologia , Feminino , Humanos , Masculino
7.
J Funct Morphol Kinesiol ; 6(1)2021 Feb 25.
Artigo em Inglês | MEDLINE | ID: mdl-33669061

RESUMO

The extracellular matrix of the articular disc in a temporomandibular joint (TMJ) is composed mainly of collagen I and elastin. The collagen is important for resisting tensile forces, while the elastin is responsible to maintain the shape after deformation. We studied the orientation of collagen and elastin in a normal human temporomandibular joint disc by light microscopy, immunofluorescence and scanning electron microscopy. Our results demonstrated that collagen and elastin run parallel to each other in the intermediate zone with an anteroposterior orientation. From here, the orientation of two fibers groups changes into a disordered arrangement in the transition zone. Numerous elastic fibers cross with the collagen fibers, defining an interwoven knitted arrangement. The evaluation of the disc-condyle relationship shows that the medial margin of the articular disc is inserted directly at the superficial layer of the mandibular condylar cartilage. Therefore, the tensile properties of the TMJ disc are expressed in the directions corresponding to the orientation of the collagen fibers, and the complex orientation of elastin with the collagen determines the maintaining of the shape after the stresses by the joint movements. Moreover, the direct anatomical relationship between the articular disc and the mandibular condyle makes a decisive contribution to the understanding of TMJ movements.

8.
Heliyon ; 6(8): e04651, 2020 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-32817892

RESUMO

Discomalleolar ligament represents the vestiges of the primitive lateral pterygoid muscle which penetrates in the caudal end of Meckel's cartilage; during the development of newborn, the petrotympanic fissure close almost completely leaving inside the discomalleolar ligament. After entering in tympanic cavity, some fibers of the discomalleolar ligament insert to walls of cavity, other fibers continue with the lateral margin of the anterior ligament and insert in the neck of malleus; in contrast, other Authors demonstrated that discomalleolar ligament is an independent structure inserted in proximity of the neck of the malleus. Although the discomalleolar ligament can be considered as a structure of clinical importance, it is not described by anatomy textbooks. Moreover, it is likely that important correlations between temporomandibular diseases and otological symptoms exist. We have studied discomalleolar ligament submitting the specimens to the 3D volume rendering technique, light microscopy, reconstructing a wide light microscopic fields to analyze the real connection between retrodiscal connective tissue and middle ear, and immunofluorescence methods in order to analyze the consistence of ligament. We have shown two types of connections between TMJ and ear: first, with external acoustic meatus and, second, with middle ear through discomalleolar ligament. The different insertion represents a strong support in order to demonstrate that the TMJ disorders can determine variations of tension that are transmitted on the tympanic membrane provoking tinnitus in according to clinical features. Then, we propose that it is necessary to mention, also in anatomy textbook, the discomalleolar ligament as ligament distance of TMJ.

9.
Int. arch. otorhinolaryngol. (Impr.) ; 24(1): 38-46, Jan.-Mar. 2020. tab, graf
Artigo em Inglês | LILACS | ID: biblio-1090545

RESUMO

Abstract Introduction The clinical relevance of the anatomy and variations of the anterior ethmoidal artery (AEA) is outstanding, considering its role as a landmark in endoscopic surgery, its importance in the therapy of epistaxis, and the high risks related to iatrogenic injuries. Objective To provide an anatomical description of the course and relationships of the AEA, based on direct computed-tomography (CT)-based 3D volume rendering. Methods Direct volume rendering was performed on 18 subjects who underwent (CT) with contrast medium for suspected cerebral aneurism. Results The topographical location of 36 AEAs was assessed as shown: 10 dehiscent (27.8%), 20 intracanal (55.5%), 6 incomplete canals (16.7%). Distances from important topographic landmarks are reported. Conclusion This work demonstrates that direct 3D volume rendering is a valid imaging technique for a detailed description of the anterior ethmoidal artery thus representing a useful tool for head pre-operatory assessments.


Assuntos
Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Artérias/anatomia & histologia , Artérias/diagnóstico por imagem , Seio Etmoidal/irrigação sanguínea , Seio Etmoidal/diagnóstico por imagem , Tomografia Computadorizada Multidetectores/métodos , Tomografia Computadorizada por Raios X/métodos , Aneurisma Intracraniano/diagnóstico por imagem , Estudos Retrospectivos , Base do Crânio/anatomia & histologia , Base do Crânio/irrigação sanguínea , Base do Crânio/diagnóstico por imagem , Meios de Contraste , Imageamento Tridimensional
10.
Int Arch Otorhinolaryngol ; 24(1): e38-e46, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31929832

RESUMO

Introduction The clinical relevance of the anatomy and variations of the anterior ethmoidal artery (AEA) is outstanding, considering its role as a landmark in endoscopic surgery, its importance in the therapy of epistaxis, and the high risks related to iatrogenic injuries. Objective To provide an anatomical description of the course and relationships of the AEA, based on direct computed-tomography (CT)-based 3D volume rendering. Methods Direct volume rendering was performed on 18 subjects who underwent (CT) with contrast medium for suspected cerebral aneurism. Results The topographical location of 36 AEAs was assessed as shown: 10 dehiscent (27.8%), 20 intracanal (55.5%), 6 incomplete canals (16.7%). Distances from important topographic landmarks are reported. Conclusion This work demonstrates that direct 3D volume rendering is a valid imaging technique for a detailed description of the anterior ethmoidal artery thus representing a useful tool for head pre-operatory assessments.

11.
J Funct Morphol Kinesiol ; 5(4)2020 Dec 08.
Artigo em Inglês | MEDLINE | ID: mdl-33467305

RESUMO

The temporomandibular joint (TMJ) is a bilateral synovial articulation stabilized by several anatomical structures such as ligaments. The existence of articular capsule reinforcement structures have been described in the lateral and medial sides of disc which have been defined as collateral ligaments, lateral and medial. Despite that, some macroscopic observations support that these collateral ligaments do not belong to the articular capsule but they belong to the disc. By that, the aim of the present work was to evaluate morphological aspects of TMJ from cadaveric frozen heads by histological and immunofluorescence techniques in order to verify the origin and insertion of lateral and medial collateral ligaments. Results show that both lateral and medial ligaments origin from the disc and insert directly to the articular cartilage of mandibula condyle. These data open a new approach in the study of human TMJ.

13.
Heliyon ; 5(10): e02572, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31667410

RESUMO

The periodontal ligament (PDL) is a highly vascularized connective tissue surrounding the root of a tooth. In particular, the PDL is continuously exposed to mechanical stresses during the phases of mastication, and it provides physical, sensory, and trophic functions. It is known that the application of orthodontic force creates a change in periodontal structures. In fact, these forces generate a pressure on the ligament that closes the vessels. The aim of this study is to observe the modifications of vascular endothelial growth factor (VEGF) in the PDL and extracellular matrix proteins after application of a pre-calibrated and constant orthodontic force at different phases of treatment. We used a 50-g NiTi coiled spring and in vivo samples of PDL of maxillary and mandibular premolars of patients subjected to orthodontic treatment. These teeth were extracted at 1, 7, 14, 21, and 30 days, respectively, by application of force. The extraction of the PDL was effectuated by scarifying the radicular surface on the pressure and tension sides. The mechanical stress induced by the application of force caused an increase in the reactive type of metabolism of extracellular matrix proteins and modulation of neoangiogenesis until restoration.

14.
Front Syst Neurosci ; 13: 61, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31736719

RESUMO

Much of our present understanding of the function and operation of the basal ganglia rests on models of anatomical connectivity derived from tract-tracing approaches in rodents and primates. However, the last years have been characterized by promising step forwards in the in vivo investigation and comprehension of brain connectivity in humans. The aim of this review is to revise the current knowledge on basal ganglia circuits, highlighting similarities and differences across species, in order to widen the current perspective on the intricate model of the basal ganglia system. This will allow us to explore the implications of additional direct pathways running from cortex to basal ganglia and between basal ganglia and cerebellum recently described in animals and humans.

15.
Sci Rep ; 9(1): 12117, 2019 08 20.
Artigo em Inglês | MEDLINE | ID: mdl-31431648

RESUMO

The Red Nucleus (RN) is a large nucleus located in the ventral midbrain: it is subdivided into a small caudal magnocellular part (mRN) and a large rostral parvocellular part (pRN). These distinct structural regions are part of functionally different networks and show distinctive connectivity features: the mRN is connected to the interposed nucleus, whilst the pRN is mainly connected to dentate nucleus, cortex and inferior olivary complex. Despite functional neuroimaging studies suggest RN involvement in complex motor and higher order functions, the pRN and mRN cannot be distinguished using conventional MRI. Herein, we employ high-quality structural and diffusion MRI data of 100 individuals from the Human Connectome Project repository and constrained spherical deconvolution tractography to perform connectivity-based segmentation of the human RN. In particular, we tracked connections of RN with the inferior olivary complex, the interposed nucleus, the dentate nucleus and the cerebral cortex. We found that the RN can be subdivided according to its connectivity into two clusters: a large ventrolateral one, mainly connected with the cerebral cortex and the inferior olivary complex, and a smaller dorsomedial one, mainly connected with the interposed nucleus. This structural topography strongly reflects the connectivity patterns of pRN and mRN respectively. Structural connectivity-based segmentation could represent a useful tool for the identification of distinct subregions of the human red nucleus on 3T MRI thus allowing a better evaluation of this subcortical structure in healthy and pathological conditions.


Assuntos
Cerebelo/diagnóstico por imagem , Córtex Cerebral/diagnóstico por imagem , Imageamento por Ressonância Magnética , Núcleo Rubro/diagnóstico por imagem , Adulto , Cerebelo/anatomia & histologia , Córtex Cerebral/anatomia & histologia , Feminino , Humanos , Masculino , Vias Neurais/anatomia & histologia , Vias Neurais/diagnóstico por imagem , Núcleo Rubro/anatomia & histologia , Adulto Jovem
16.
Mov Disord ; 34(7): 987-996, 2019 07.
Artigo em Inglês | MEDLINE | ID: mdl-31077436

RESUMO

BACKGROUND: Understanding the topographical organization of the cortico-basal ganglia circuitry is of pivotal importance because of the spreading of techniques such as DBS and, more recently, MR-guided focused ultrasound for the treatment of movement disorders. A growing body of evidence has described both direct cortico- and dento-pallidal connections, although the topographical organization in vivo of these pathways in the human brain has never been reported. OBJECTIVE: To investigate the topographical organization of cortico- and dento-pallidal pathways by means of diffusion MRI tractography and connectivity based parcellation. METHODS: High-quality data from 100 healthy subjects from the Human Connectome Project repository were utilized. Constrained spherical deconvolution-based tractography was used to reconstruct structural cortico- and dento-pallidal connectivity. Connectivity-based parcellation was performed with a hypothesis-driven approach at three different levels: functional regions (limbic, associative, sensorimotor, and other), lobes, and gyral subareas. RESULTS: External globus pallidus segregated into a ventral associative cluster, a dorsal sensorimotor cluster, and a caudal "other" cluster on the base of its cortical connectivity. Dento-pallidal connections clustered only in the internal globus pallidus, where also associative and sensorimotor clusters were identified. Lobar parcellation revealed the presence in the external globus pallidus of dissociable clusters for each cortical lobe (frontal, parietal, temporal, and occipital), whereas in internal globus pallidus only frontal and parietal clusters were found out. CONCLUSION: We mapped the topographical organization of both internal and external globus pallidus according to cortical and cerebellar connections. These anatomical data could be useful in DBS, radiosurgery and MR-guided focused ultrasound targeting for treating motor and nonmotor symptoms in movement disorders. © 2019 The Authors. Movement Disorders published by Wiley Periodicals, Inc. on behalf of International Parkinson and Movement Disorder Society.


Assuntos
Globo Pálido/patologia , Transtornos dos Movimentos/patologia , Transtornos dos Movimentos/terapia , Vias Neurais/fisiopatologia , Adulto , Encéfalo/patologia , Conectoma , Corpo Estriado/patologia , Corpo Estriado/fisiopatologia , Imagem de Tensor de Difusão/métodos , Feminino , Globo Pálido/fisiopatologia , Humanos , Imageamento por Ressonância Magnética/métodos , Masculino , Transtornos dos Movimentos/fisiopatologia , Vias Neurais/patologia
17.
Brain Imaging Behav ; 13(4): 933-944, 2019 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-29911280

RESUMO

The claustrum is a thin grey matter structure which is involved in a wide brain network. Previous studies suggested a link between claustrum and Parkinson's Disease (PD), showing how α-synuclein pathology may affect claustral neurons as well as how α-synuclein immunoreactivity may correlate with the onset of cognitive dysfunctions. Our aim is to investigate, via diffusion MRI, claustral structural network changes in drug naïve PD patients, with the goal to understand whether such changes may contribute to cognitive decline in PD. 15 drug naïve PD patients and 15 age-matched controls were enrolled; MR protocol was performed on a 3T scanner. Whole brain probabilistic tractography was obtained using Constrained Spherical Deconvolution (CSD) diffusion model. Connectivity matrices were estimated based on a robust anatomical parcellation of structural T1w images. In PD group, impaired subnetworks were correlated with psychological examinations. We found decreased claustral connectivity in PD patients compared to controls, especially with areas mainly involved in visuomotor and attentional systems. Moreover, we found a positive correlation between MoCA and density of pathways connecting ipsilaterally claustrum to left (r = 0.578, p = 0.021) and right (r = 0.640, p = 0.020) Pars Orbitalis. Our results support the hypothesis of claustral involvement in cognitive decline in drug naïve PD patients.


Assuntos
Claustrum/fisiopatologia , Disfunção Cognitiva/fisiopatologia , Doença de Parkinson/fisiopatologia , Idoso , Encéfalo/fisiopatologia , Claustrum/diagnóstico por imagem , Cognição/fisiologia , Imagem de Difusão por Ressonância Magnética/métodos , Feminino , Substância Cinzenta/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Rede Nervosa/diagnóstico por imagem
18.
J Sports Med Phys Fitness ; 59(5): 853-860, 2019 May.
Artigo em Inglês | MEDLINE | ID: mdl-30024127

RESUMO

BACKGROUND: Diffusion tensor imaging (DTI) is a non-invasive MR technique widely employed to study muscle anatomy. DTI parameters have been used to investigate microstructural changes dependent on demographic factors or transient condition such as exercise. The present study is aimed at investigating the diffusion parameters changes of the human calf muscles after a 3-months strength training protocol. METHODS: Ten young men were trained for improving size and strength of the medial (GCM), lateral gastrocnemius (GCL) and soleus (SL) three times a week, with at least 24 hours between training sessions, for a period of three months. Diffusion weighted magnetic resonance images were acquired at the beginning of the training period (TPRE) and at three months (TPOST) using a 3T scanner. The fractional anisotropy (FA), mean diffusivity (MD) and tensor eigenvalues (λ1, λ2, λ3) were derived from the diffusion weighted imaging data. RESULTS: We found a significant increase in λ1, λ2, λ3 and MD values and muscle volumes between TPRE and TPOST in all the examined muscles both for the left and right side. No significant differences were highlighted for FA. CONCLUSIONS: DTI enables the investigation of muscle microstructure, allowing for the assessment of diffusion parameters variation of the muscle tissue in response to training thus being a useful tool to investigate physiological and pathological changes in skeletal muscle microstructure which could be employed to test the outcomes and the effectiveness of a given training protocol.


Assuntos
Imagem de Tensor de Difusão , Músculo Esquelético/fisiologia , Treinamento Resistido , Exercício Físico , Humanos , Perna (Membro) , Masculino , Músculo Esquelético/diagnóstico por imagem , Adulto Jovem
19.
Urol Int ; 101(2): 219-223, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30089289

RESUMO

OBJECTIVES: The study aimed to investigate the expression of the integrin isoforms α7A and ß1A, expressed by myogenic precursor cells, and α7B and ß1D, expressed by mature muscle cells in the cremaster of patients affected by an undescended testis. METHODS: Fifteen samples of cremaster were obtained from patients undergoing surgery for an undescended testis. Thirty control specimens of cremaster were harvested from patients with congenital hydrocele or inguinal hernia. Immunofluorescent analysis was carried out using anti-α7A, ß1A, α7B, and ß1D integrin antibodies. Sections were observed using confocal laser scanning microscopy. RESULTS: As compared with controls, a significant loss of a α7B (p = 0.0355) and ß1D (p = 0.0069) integrins and a higher expression of α7A (p = 0.0003) and ß1A (p = 0.0150) was detected in the cremaster of patients affected by an undescended testis. CONCLUSIONS: Our data document a critical alteration of the cytoskeleton of cremasteric smooth muscle cells in patients with an undescended testis. This might explain the altered function in smooth muscle cells in cremaster implied during testicular descent. We therefore speculate that the postnatal splicing of α7A to α7B and of ß1A to ß1D integrins is delayed. This could account for the common clinical scenario of spontaneous descent of the testes in the first months of life.


Assuntos
Músculos Abdominais/química , Antígenos CD/análise , Criptorquidismo/metabolismo , Cadeias alfa de Integrinas/análise , Integrina beta1/análise , Miócitos de Músculo Liso/química , Músculos Abdominais/patologia , Músculos Abdominais/cirurgia , Estudos de Casos e Controles , Pré-Escolar , Criptorquidismo/patologia , Criptorquidismo/cirurgia , Citoesqueleto/química , Citoesqueleto/patologia , Imunofluorescência , Humanos , Lactente , Masculino , Microscopia Confocal , Miócitos de Músculo Liso/patologia
20.
J Orthop ; 15(2): 333-336, 2018 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-29881147

RESUMO

In humans the acquisition of the bipedalism caused different structural changes to achieve the new functional demands. In particular, several changes have occurred in the spine and pelvis. In recent years the sagittal morphology of the spine and pelvis has become one of the most focused topics in spine research. The sample consists of 348 volunteers, with no history of low back pain, without any previous major trauma at the spine or at the pelvis. Aged between 20 and 29 years. The presence and severity of zygoapophyseal facet arthrosis were investigated in accordance with Pathria's classification (it considered four parameters: width of interarticular space, the presence of osteophytes, the presence of facet hypertrophy and presence of areas of bone erosion). Volunteers were divided into two group based on sagittal balance subtype classified by Roussouly in 2005. 98 volunteers (35.76%) belongs to group A (subtype I and II), and 176 volunteers (64.24%) belongs to group III and IV. The different weight distribution in the lumbar spine suggests that different subtype of sagittal balance could develop zygoapophyseal facet arthrosis more frequently. Considering the different Groups, a statistically significant difference was found: people belonging in group B (subtype III and IV), shows a prevalence of 36,36% compared with a prevalence of 24.5% for group A (subtype I and II).

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