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During the last decades, five or six member rings azaheterocycles compounds appear to be an extremely valuable source of antifungal agents. Their use seems to be a very attractive solution in antifungal therapy and to overcome antifungal resistance in agriculture. The present review highlights the main results obtained in the field of hybrid and chimeric azine (especially pyridine, quinoline, phenanthroline, bypyridine, naphthyridine and their fused derivatives) derivatives presented in scientific literature from the last 10 years, with emphasis on antifungal activity of the mentioned compounds. A special attention was played to hybrid and chimeric azole-azine class, having in view the high antifungal potential of azoles.
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Antifúngicos , Testes de Sensibilidade Microbiana , Antifúngicos/farmacologia , Antifúngicos/química , Antifúngicos/síntese química , Humanos , Azóis/química , Azóis/farmacologia , Azóis/síntese química , Piridinas/química , Piridinas/farmacologia , Piridinas/síntese química , Fungos/efeitos dos fármacos , Estrutura Molecular , Relação Estrutura-Atividade , Quinolinas/química , Quinolinas/farmacologiaRESUMO
The ongoing COVID-19 pandemic, declared by the World Health Organisation in March 2020, with the emergence of new, possibly more contagious and more virulent strains, remains a research subject, with the complex systemic involvement better described and understood, but also with a variety of skin and mucosal lesions described in the literature. Mucocutaneous lesions associated with SARS-CoV-2 infection are still under investigation, due to their polymorphic clinical aspect and incompletely understood pathogenic mechanism. The cutaneous inflammatory, exanthematous and purpuric rashes, erythemato-purpuric enanthems, oral ulcers, lichenoid oral lesions, conjunctivitis, conjunctival pseudomembranes, or corneal lesions have been described in patients with COVID-19. Several classifications have been proposed based on the clinical pattern, histological findings, and possible pathogenic mechanisms. The pathogenic mechanism, the diagnostic criteria, the prognostic importance of these lesions are still being debated. The diverse clinical aspects of dermatological manifestations render the diagnosis difficult. However, several clinical patterns strongly associated with COVID-19, such as chilblains, papulovesicular exanthems, and febrile rash require increased awareness and changes to the investigation protocols for these conditions, to include testing for SARS-CoV-2. In the present review, the mucocutaneous findings associated with the novel coronavirus infection, reported thus far in the literature, was provided.
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Psoriasis is a common long-lasting, inflammatory disease that mainly affects the skin. The incidence of this condition has increased significantly over time and at this point, it affects approximately 1% of children. Psoriasis can appear at any age, including childhood and adolescence, with a higher frequency in girls, an earlier onset being associated with severe psoriasis. The pathology is the result of the interaction between genetics and trigger factors such as infections, stress, diet, obesity, and chemical irritants. Paradoxically, tumor necrosis factor (TNF)-α inhibitors (infliximab, adalimumab) may induce psoriasis in children. Psoriasis is a long-term condition with periods of exacerbation; thus, the quality of life can be affected and patients should receive psychosocial support. Although most children have mild disease and topical treatment is efficient, some cases are challenging to treat. The aim of this review was to provide an overview of the current knowledge concerning the epidemiology, etiology, pathogenesis, clinical features, comorbidities, and treatment of psoriasis in children and also to emphasize the need for a multidisciplinary approach to this complex pathology.
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Due to the pressing problems of today's world, regarding both the finding of new, environmentally friendly materials which have the potential to replace classic ones, and the need to limit the accelerated spread of bacteria in hospitals, offices and other types of spaces, many researchers have chosen to develop their work in this field. Thus, biopolymeric materials have evolved so much that they are gradually becoming able to remove fossil-based plastics from major industries, which are harmful to the environment and implicitly to human health. The biopolymer employed in the present study, Arboblend V2 Nature with silver nanoparticle content (AgNP) meets both aspects mentioned above. The main purpose of the paper is to replace several parts and products in operation which exhibit antibacterial action, preventing the colonization and proliferation of bacteria (Streptococcus pyogenes and Staphylococcus aureus, by using the submerged cultivation method), but also the possibility of degradation in different environments. The biopolymer characterization followed the thermal behavior of the samples, their structure and morphology through specific analyses, such as TGA (thermogravimetric analysis), DSC (differential scanning calorimetry), SEM (scanning electron microscopy) and XRD (X-ray diffraction). The obtained results offer the possibility of use of said biocomposite material in the medical field because of its antibacterial characteristics that have proved to be positive, and, therefore, suitable for such applications. The thermal degradation and the structure of the material highlighted the possibility of employing it in good conditions at temperatures up to 200 °C. Two types of samples were used for thermal analysis: first, in the form of granules coated with silver nanoparticles, and second, test specimen cut from the sample obtained by injection molding from the coated granules with silver nanoparticles.
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INTRODUCTION: Active acromegaly is a rare chronic endocrine disorder caused by excessive growth hormone (GH). Clinical studies suggest that cognitive performance is impaired in acromegaly - particularly executive function as well as short- and long-term memory. This study compared the quality of life (QoL) and executive functioning in acromegaly patients vs healthy controls. MATERIALS AND METHODS: This was an observational case-control study on 38 subjects divided into 19 acromegaly patients and 19 matched controls. The groups were evaluated for QoL, attention, and executive function. All subjects completed Acromegaly Quality of Life Questionnaire (AcroQoL), Trail Making Test (parts A and B), Stroop, and phonemic fluency tests. RESULTS: Acromegaly patients had an AcroQoL global score that was significantly lower than controls. There were significant differences between the acromegaly group and the control group in terms of the physical effects (P=0.001) and appearance (P<0.001) but not for personal relationships (P=0.421). Acromegaly patients performed worse in the trail making test part B. They provided significantly fewer words than healthy subjects in phonemic fluency testing. Although patients performed generally worse than controls, no significant differences were noted in the trail making test part A, Stroop test, and the constrained phonemic fluency. CONCLUSION: Acromegaly patients display worse executive functioning than healthy controls and have a decreased QoL.
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Background: Our study underline scarcity of isolated case reports or small case series of parathyroid adenoma (PA) published in autochthonous medical literature,their variable clinical expression among the "historic" varieties but also the diagnostic difficulties and delays of diagnosis as well consecration of surgery as the golden therapeutic standard of this disorder. PATIENTS AND METHOD: Demographic, clinical presentations, laboratory and imaging data, operative findings and procedures together with pathology account and outcome from the case reports of 18 patients with documented PHP were retrospectively analyzed. Results: The male/female ratio was 1/5, with ages ranging from 16 to 58 (mean 46) years. Renal stones (n=9) and bone sufferings (n=6) were the most common modes of presentation. To these were added psychiatric and neuromuscular complaints, digestive disorders (pancreatitis and peptic ulcer) arterial hypertension and presence of a palpable nodule. Mean serum calcium and phospho-rus, alkaline phosphatase and PTH dosage together with parathyroid ultrasound and 99m Tc sestamibi scintigraphy are the most useful parameters for diagnosis. Eighteen adenomectomies were performed of which bilateral neck exploration was done in 16 patients and minimally invasive approach in the remaining two cases. In 9 situations concomitant thyroid exeresis for associated lesions or tactical purpose were done. Pathology revealed single adenoma consisting of main and oxyphil cells in 17 cases. In one case an atypical adenoma was identified and in another case three years after removal of a benign adenoma the subject presented a clinical ipsilateral recurrence which provided to be a carcinoma. Postoperative clinical and humoral outcome was favorable in all situations less the case of carcinoma which died after 14 months. Conclusions: Despite the rarity and difficulties of diagnosis in cases of PA, practitioners must be aware of potential existence of these lesions in order to apply as early and appropriate treatment where surgery is the gold standard.
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Adenoma/diagnóstico , Adenoma/cirurgia , Neoplasias das Paratireoides/diagnóstico , Neoplasias das Paratireoides/cirurgia , Paratireoidectomia , Adenoma/sangue , Adenoma/complicações , Adolescente , Adulto , Fosfatase Alcalina/sangue , Biomarcadores/sangue , Cálcio/sangue , Feminino , Humanos , Cálculos Renais/etiologia , Masculino , Pessoa de Meia-Idade , Hormônio Paratireóideo/sangue , Neoplasias das Paratireoides/sangue , Neoplasias das Paratireoides/complicações , Paratireoidectomia/métodos , Fósforo/sangue , Cintilografia , Compostos Radiofarmacêuticos , Estudos Retrospectivos , Tecnécio Tc 99m Sestamibi , Resultado do Tratamento , UltrassonografiaRESUMO
Primary thyroid lymphomas account for less than 5% of all thyroid malignancies and the majority of cases concern non- Hodgkin's lymphoma of B and T-cell origin as well as Hodgkin's lymphoma. Mucosa-associated lymphoid tissue (MALT) lymphoma are a relatively recently described subset of low grade B-cell non-Hodgkin's lymphoma representing between 6 and 27% of the patients with thyroid lymphomas. These cases occur usually in patients with Hashimoto's thyroiditis having a long indolent course and delayed diagnosis, actually benefit from several therapeutic opportunities among them even surgery and a favorable prognostic. Herein we present a 42-year-old female admitted in our unit for a right firm sensitive thyroid swelling, nonhomogeneous on ultrasound images. FNAB showed cellular smears of mixed follicular cells on a background of mature lymphocytes displaying some nuclear atypia and scanty cytoplasm but no definite malignant elements. Intraoperatively, in addition to the "banal" goiter that was found, some subcentimeter cervical lymph nodes were evidenced. Frozen section showed no evidence of malignant or even suspected cellular elements. However a total right lobectomy and lymph node excision was performed. Microscopy revealed a diffuse lymphoproliferative infiltrate in a background of lymphocytic thyroiditis suggesting a diagnosis of B-cell lymphoma of MALT type and the patient was referred to chemotherapy. She was currently under follow-up without recurrences or metastases after two years from surgery.
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Linfoma de Zona Marginal Tipo Células B/diagnóstico , Linfoma de Zona Marginal Tipo Células B/terapia , Neoplasias da Glândula Tireoide/diagnóstico , Neoplasias da Glândula Tireoide/terapia , Tireoidectomia , Adulto , Biópsia por Agulha Fina , Índice de Massa Corporal , Quimioterapia Adjuvante/métodos , Feminino , Humanos , Linfoma de Zona Marginal Tipo Células B/complicações , Sobrepeso/complicações , Fatores de Risco , Neoplasias da Glândula Tireoide/complicações , Tireoidectomia/métodos , Resultado do TratamentoRESUMO
INTRODUCTION: The significant increase in the average lifespan of the general population lead to a proportional enhacement in the prevalence of benign and malignant thyroid conditions and equally the number of surgeries for this pathology. PATIENTS AND METHOD: In a personal series of 464 thyroid disorders undergoing surgery over a two decades period we registered 51 patients (10.9%) aged over 65 years of which 11 (2.4%) having over 75 years. Demographic, clinical and diagnostic characteristics of these cases were analysed together with indications, management practice and outcome. Retrospective statistical analysis reaearching risk factor and confidence interval has not identified factors predicting higher risk of complication in this age group. RESULTS: There have been recorded 33 females and 18 males (R1=1,8/1) with clinically, laboratory and histologically confirmed diagnosis of 24 (multi)nodular goiters (47.0%), 18 thyrotoxicosis (35.2%) and also 9 (17.6%) thyroid carcinomas. Thirty-four total or near total thyroidectomies and 17 conservative exeresis were performed. There were not postoperative deaths but we recorded three cases of prolonged hypocalcemia, and two cases each of recurrent laryngeal nerve paresis and recurrences. In all benign cases we obtained a stable in time cure while in carcinomas survivals of 3-5 years were obtained in only 4 papillary tumors. CONCLUSIONS: Despite some difficulties in diagnostic and additional risks related to comorbidity benign and malignant pathology installed in patients over 65 years, may benefit of all types of conservative or radical thyroidectomies in terms of strict monitoring individualized in each case.