2,570 research outputs found

    La persuasión en la red: análisis retórico de las estrategias de comunicación en el ámbito político, institucional y cultural

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    Tesis doctoral inédita leída en la Universidad Autónoma de Madrid, Facultad de Filosofía y Letras, Departamento de Lingüística General, Lenguas Modernas, Lógica y Filosofía de la Ciencia, Teoría de la Literatura y Literatura Comparada. Fecha de lectura: 30-6-201

    Bone Regeneration Using Mesenchymal Stromal Cells and Biocompatible Scaffolds: A Concise Review of the Current Clinical Trials

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    : Bone regenerative medicine is a clinical approach combining live osteoblast progenitors, such as mesenchymal stromal cells (MSCs), with a biocompatible scaffold that can integrate into host bone tissue and restore its structural integrity. Over the last few years, many tissue engineering strategies have been developed and thoroughly investigated; however, limited approaches have been translated to clinical application. Consequently, the development and clinical validation of regenerative approaches remain a centerpiece of investigational efforts towards the clinical translation of advanced bioengineered scaffolds. The aim of this review was to identify the latest clinical trials related to the use of scaffolds with or without MSCs to regenerate bone defects. A revision of the literature was performed in PubMed, Embase, and Clinicaltrials.gov from 2018 up to 2023. Nine clinical trials were analyzed according to the inclusion criteria: six presented in the literature and three reported in Clinicaltrials.gov. Data were extracted covering background trial information. Six of the clinical trials added cells to scaffolds, while three used scaffolds alone. The majority of scaffolds were composed of calcium phosphate ceramic alone, such as β-tricalcium phosphate (TCP) (two clinical trials), biphasic calcium phosphate bioceramic granules (three clinical trials), and anorganic bovine bone (two clinical trials), while bone marrow was the primary source of the MSCs (five clinical trials). The MSC expansion was performed in GMP facilities, using human platelet lysate (PL) as a supplement without osteogenic factors. Only one trial reported minor adverse events. Overall, these findings highlight the importance and efficacy of cell-scaffold constructs in regenerative medicine under different conditions. Despite the encouraging clinical results obtained, further studies are needed to assess their clinical efficacy in treating bone diseases to optimize their application

    Hemoperitoneum following mild blunt abdominal trauma: First presentation of Crohn's disease

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    Introduction: Inflammatory bowel diseases are heterogeneous in their presentation. Crohn's disease (CD) has been described as an unusual cause of massive lower gastrointestinal bleeding. We present a patient with CD whose first presentation was hemoperitoneum following mild blunt abdominal trauma Case presentation: A 54-year-old woman came to the emergency room with a blunt abdominal trauma. The patient underwent an abdominal CT scan with i.v. contrast medium injection, which showed hemoperitoneum with stenotic strictures of the small bowel and active massive bleeding from ileocolic artery. The rapid anemia onset and the CT report induced us to perform blood transfusion and an emergency exploratory laparotomy. Histological examination of the resected terminal ileum revealed a Crohn's disease. Discussion: Crohn's disease has been associated with hemoperitoneum, but to date there is no exact protocol regarding treatment of massive hemorrhagic Crohn's disease, which is rare. A conservative approach with medical therapy has been suggested for initial treatment. However, if medical treatment fails or bleeding continues even with intervention, bowel resection through surgical therapy should be performed

    Mucoceles of the oral cavity : a large case series (1994-2008) and a literature review

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    Objectives: Evaluating data of patients affected by oral mucoceles, examined at the Unit of Oral Medicine and Pathology of the University of Milan between January 1994 and December 2008. Study Design: Concise review on oral mucoceles and analysis of the clinical files of patients who underwent excisional biopsy (patient age, medical history, diagnosis, date and site of the biopsy, histopathological diagnosis and recurrences if any). Results: During the period June 1994-December 2008, 158 mucoceles were observed (93 males and 65 females), with the most frequent site being the lower lip (53%) (p=0.001 by Fisher?s test). The mean age of the patients was 31.9 years, with a peak of occurrence in the first four decades of life (75%). Conclusions: Mucoceles are lesions commonly seen in an oral medicine service, mainly affecting young people and lower lips

    PREOPERATIVE ASSESSMENT OF RECTAL CANCER: AN ACCURATE MRI PROTOCOL A RADIOLOGICAL TEMPLATE

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    The aims of our poster are: -to review the MRI technique and protocol in preoperative local staging of rectal cancer (RC); -to identify radiological signs that are useful for both the clinician and the surgeon; -to provide some “tips & tricks” in the radiological evaluation of MR images in RC staging

    Spontaneous Resorption of an Occipital Meningocele: Computed Tomography and Magnetic Resonance Imaging Evaluation

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    Cranial meningocele is a very rare variant of encephalocele. Meningocele can be associated with other disorders and may cause complications. Therapy is usually based on surgical treatment. To our knowledge, we describe the first case of spontaneous resorption of an occipital meningocele in a full-term newborn boy. A full-term newborn was noted to have a large non-skin covered, semitransparent cystic lump in the occipital bone. He underwent computed tomography and a diagnosis of meningocele was proposed. After a few hours, the cystic lump spontaneously readsorbed. After 1 week the patient underwent magnetic resonance. Histology confirmed the diagnosis

    ROLE OF IMAGING IN THE PREOPERATIVE ASSESSMENT OF PELVIC AND EXTRAPELVIC ENDOMETRIOSIS: A PICTORIAL ESSAY

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    -To create a MR radiological template for endometriosis -To review MR reports and images in patients with endometriosis to assess the accurancy of the reports
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