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1.
J Cutan Pathol ; 51(6): 415-418, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38468572

RESUMO

Anetoderma or macular atrophy is a rare skin condition of unclear pathogenesis, often associated with autoimmune diseases and skin damage from various infections. Human immunodeficiency virus (HIV), syphilis, and poxviruses have been implicated in the development of anetoderma. A 37-year-old male patient with HIV and recent unprotected sexual encounters presented with more than 400 skin lesions, consistent with Mpox. Symptomatic treatment for Mpox resulted in acute symptom resolution. However, 8 months later he developed papular anetoderma lesions in areas previously affected by Mpox. Biopsy confirmed the loss of elastic fibers in the affected skin areas, leading to the diagnosis of Mpox-induced anetoderma. This report presents a unique case of anetoderma following Mpox in an HIV-positive patient.


Assuntos
Anetodermia , Infecções por HIV , Humanos , Masculino , Adulto , Anetodermia/patologia , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Combinação Trimetoprima e Sulfametoxazol/efeitos adversos , Combinação Trimetoprima e Sulfametoxazol/uso terapêutico
2.
Med Microbiol Immunol ; 212(1): 93-102, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36595027

RESUMO

Measurement of anti-pneumococcal capsular polysaccharides (anti-PnPs) IgG titers is an important tool in the immunologic assessment of patients with suspected immunodeficiency disorders (ID) to reduce the morbi-mortality and minimize severe infections. Retrospectively, we studied the relationship among anti-PnPs IgG response to 3 doses of Prevenar®13, levels of immune system components, leukocyte populations, and clinical data in children with ID. Serum samples were collected at least 4 weeks post vaccination. Subsequently, multi-serotype enzyme-linked immunosorbent assay (ELISA) was performed. Eighty-seven children (under 12 years) were enrolled. Primary immunodeficiency disorder (PID) was the most common disorder (45) followed by possible immunodeficiency disorder (POID) (19), secondary immunodeficiency disorder (SID) (15), and mixed immunodeficiency disorder (MID) (8). The median age was 3 (1.50-5.33) years, 65% of patients were male. Deficient production of anti-PnPs IgG (titer ≤ 50 mg/L) was detected in 47 patients (54%), especially in the MID group, all of them under immunosuppressive therapy. In PCV13 responders, the mean of leukocyte population levels was higher with statistically significance differences in CD4 + /CD8 + T lymphocytes (p = 0.372, p = 0.014) and CD56 + /CD16 + NK (p = 0.016). Patients with previous bone marrow transplantation were the worst PCV13 responders. Pneumococcal IgG antibody titers (post-vaccination) along with clinical and analytical markers represented.


Assuntos
Formação de Anticorpos , Vacinas Pneumocócicas , Pré-Escolar , Feminino , Humanos , Masculino , Anticorpos Antibacterianos , Vacina Pneumocócica Conjugada Heptavalente , Imunoglobulina G , Estudos Retrospectivos , Streptococcus pneumoniae , Lactente
3.
Eur Arch Otorhinolaryngol ; 280(2): 869-876, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36102986

RESUMO

INTRODUCTION: Nowadays, 70% of patients in Europe and the USA are affected by a p16 + , potentially HPV driven oropharyngeal squamous cell carcinoma. However, despite the improved survival rate in this group, the quality-of-life remains low in cases which neck dissection took place. In this vein, in recent years, some surgeons have considered to avoid dissection of level IIB, proposing a supra-selective non-IIb neck dissection. MATERIALS AND METHODS: A retrospective, longitudinal, multicentric study was conducted, including patients with pathologically confirmed primary HPV + or HPV - OPSCC who went through surgical treatment for the primary lesion and neck dissection. RESULTS: 141 patients were included. Among them, 99 (70.2%) were male and 42 (29.8%) were female. The mean age was 62 ± 9 years (range 36-81). The most frequent anatomical location was the tonsil in 63 (44.7%) of patients. The most common approach was the classic transoral oropharyngectomy in 51 (36.2%) patients. Immunohistochemistry for p16 was positive in 62 (44%) patients. One-hundred and five (74.5%) patients received a unilateral ND, and a 36 (25.5%) a bilateral ND. Of those, a 12.8% (18/141) of patients were level IIb LN + . According to our results, level IIb ND should be considered in patients underwent therapeutic ND with positive LN metastasis in level IIa (OR = 9.83; 95% CI 3.463-27.917) or III (OR = 6.25; 95% CI 2.158-18.143), advanced (T3/T4) oropharyngeal primary tumors (OR = 3.38; 95% CI 1.366-8.405), and patients with ENE (OR = 6.56; 95% CI 2.182-19.770), regardless of p16 status. CONCLUSIONS: According to our results, level IIb ND should be considered in patients who underwent therapeutic ND with positive LN metastasis in level IIa or III, advanced oropharyngeal primary tumors, and patients with ENE, independently of p16 status. Prospective data are necessary to definitively ensure the safety of omitting ipsilateral or contralateral level IIb ND in cN - patients with early stage disease.


Assuntos
Neoplasias Orofaríngeas , Infecções por Papillomavirus , Carcinoma de Células Escamosas de Cabeça e Pescoço , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Linfonodos/patologia , Metástase Linfática/patologia , Esvaziamento Cervical/métodos , Estadiamento de Neoplasias , Neoplasias Orofaríngeas/patologia , Neoplasias Orofaríngeas/cirurgia , Infecções por Papillomavirus/patologia , Estudos Prospectivos , Estudos Retrospectivos , Carcinoma de Células Escamosas de Cabeça e Pescoço/cirurgia , Carcinoma de Células Escamosas de Cabeça e Pescoço/patologia
4.
Salud Publica Mex ; 65(4, jul-ago): 402-406, 2023 Jul 15.
Artigo em Inglês | MEDLINE | ID: mdl-38060894

RESUMO

OBJECTIVE: To update prior studies on the impact of Covid-19 on suicide in Mexico. MATERIALS AND METHODS: We used interrupted time-series analysis to model the national trend in monthly suicides before Covid-19 (January 1, 2010, to March 31, 2020), comparing the expected number of suicides with the observed number for the remainder of the period (April 1, 2020, to December 31, 2021). RESULTS: We observed a 5% increase in suicides, driven by suicides among the younger females ages <44 years and among older males ages 45+. CONCLUSION: Since in Mexico the impact of Covid-19 on suicide depended on sex and age, tailored public health strategies may be needed to confront the problem.


Assuntos
COVID-19 , Suicídio , Masculino , Feminino , Humanos , México/epidemiologia , COVID-19/epidemiologia , Saúde Pública
5.
Molecules ; 28(15)2023 Jul 25.
Artigo em Inglês | MEDLINE | ID: mdl-37570613

RESUMO

The present study reports on a 2D lamellar coordination polymer (CP) of {[Zn(µ3-pmdc)(H2O)]·H2O}n formula (pmdc = pyrimidine-4,6-dicarboxylate). This CP is synthesized under an appropriate acid-base reaction between the gently mortared reagents in the solid state through a solvent-free procedure that avoids the presence of concomitant byproducts. The X-ray crystal structure reveals the occurrence of Zn2 entities connected through carboxylate groups of pmdc, which behave as triconnected nodes, giving rise to six-membered ring-based layers that are piled up through hydrogen bonding interactions. In addition to a routine physico-chemical characterization, the thermal evolution of the compound has been studied by combining thermogravimetric and thermodiffractometric data. The photoluminescence properties are characterized in the solid state and the processes governing the spectra are described using time-dependent density-functional theory (TD-DFT) with two different approaches employing different program packages. The emissive capacity of the material is further analyzed according to the dehydration and decreasing temperature of the polycrystalline sample.

6.
Addict Biol ; 27(6): e13229, 2022 11.
Artigo em Inglês | MEDLINE | ID: mdl-36301215

RESUMO

Classic psychedelics refer to substances such as lysergic acid diethylamide (LSD), psilocybin, ayahuasca, and mescaline, which induce altered states of consciousness by acting mainly on 5-HT2A receptors. Recently, the interest of psychedelics as pharmacological treatment for psychiatric disorders has increased significantly, including their use on problematic use of alcohol. This systematic review is aimed to analyse the last two decades of studies examining the relationship between classic psychedelics and alcohol consumption. We searched PubMed and PsycInfo for human and preclinical studies published between January 2000 to December 2021. The search identified 639 publications. After selection, 27 studies were included. Human studies (n = 20) generally show promising data and seem to indicate that classic psychedelics could help reduce alcohol consumption. Nevertheless, some of these studies present methodological concerns such as low number of participants, lack of control group or difficulty in determining the effect of classic psychedelics in isolation. On the other hand, preclinical studies (n = 7) investigating the effect of these compounds on voluntary alcohol consumption are scarce and show some conflicting data. Among these compounds, psilocybin seems to show the most consistent data indicating that this compound could be a potential candidate to treat alcohol use disorders. In the absence of understanding the biological and/or psychological mechanisms, more studies including methodological quality parameters are needed to finally determine the effects of classic psychedelics on alcohol consumption.


Assuntos
Alcoolismo , Alucinógenos , Animais , Humanos , Alucinógenos/farmacologia , Alucinógenos/uso terapêutico , Psilocibina/farmacologia , Psilocibina/uso terapêutico , Alcoolismo/tratamento farmacológico , Dietilamida do Ácido Lisérgico/farmacologia , Dietilamida do Ácido Lisérgico/uso terapêutico , Mescalina
7.
Sensors (Basel) ; 22(9)2022 Apr 28.
Artigo em Inglês | MEDLINE | ID: mdl-35591082

RESUMO

Two novel metal-organic frameworks (MOFs), based on dysprosium as the metal and the 5-aminoisophthalic acid (5aip) ligand, have been solvothermally synthesized, with the aim of studying and modulating their luminescence properties according to the variation of solvent in the structure. These materials display intense photo-luminescence properties in the solid state at room temperature. Interestingly, one fascinating sensory capacity of compound 2 regards obtaining a variation of the signal, depending on the solvent to which it is exposed. These results pave the way for a new generation of sensitive chemical sensors.

8.
J Surg Res ; 262: 57-64, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33548674

RESUMO

BACKGROUND: Despite the increasing use of intraoperative facial nerve monitoring during parotid gland surgery (PGS) and the improvement in the preoperative radiological assessment, facial nerve injury (FNI) remains the most severe complication after PGS. Until now, no studies have been published regarding the application of machine learning (ML) for predicting FNI after PGS. We hypothesize that ML would improve the prediction of patients at risk. METHODS: Patients who underwent PGS for benign tumors between June 2010 and June 2019 were included. RESULTS: Regarding prediction accuracy and performance of each ML algorithm, the K-nearest neighbor and the random forest achieved the highest sensitivity, specificity, positive predictive value, negative predictive value F-score, receiver operating characteristic (ROC)-area under the ROC curve, and accuracy globally. The K-nearest neighbor algorithm achieved performance values above 0.9 for specificity, negative predictive value, F-score and ROC-area under the ROC curve, and the highest sensitivity and positive predictive value. CONCLUSIONS: This study demonstrates that ML prediction models can provide evidence-based predictions about the risk of FNI to otolaryngologists and patients. It is hoped that such algorithms, which use clinical, radiological, histological, and cytological information, can improve the information given to patients before surgery so that they can be better informed of any potential complications.


Assuntos
Traumatismos do Nervo Facial/etiologia , Paralisia Facial/etiologia , Aprendizado de Máquina , Glândula Parótida/cirurgia , Neoplasias Parotídeas/cirurgia , Complicações Pós-Operatórias/etiologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Adulto Jovem
9.
Eur Arch Otorhinolaryngol ; 278(2): 567-571, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-32588168

RESUMO

INTRODUCTION: Although lithiasis represents more than 60% of all cases of salivary gland obstruction, only 20% occurs in the Stensen´s duct. Nonetheless, the potential complications related to parotid gland surgery due to facial nerve injury, makes the development of minimally invasive techniques highly relevant. MATERIALS AND METHODS: A pilot study was conducted to assess results of patients treated by sialendoscopy-assisted trans-oral approach to treat Stensen´s duct lithiasis. RESULTS: Eight patients were included; all of them operated satisfactorily. Six of them were male, and 2 were female. The mean size of the stones was 9.6 mm (Min: 6 mm/Max: 16 mm). Regarding to lithiasis location: it was anterior to the masseter line in the distal third of the Stensen's duct in seven patients and in another patient was immediately below the buccinator muscle. During the follow-up, all patients presented a healthy functioning of the gland after the compressive massage. Regarding complications, one patient presented a Stensen's duct stenosis, which required reintervention. CONCLUSION: The transoral Stensen´s duct approach represents a safe technique for lithiasis bigger than 3 mm in the distal portion of the Stensen´s duct, anterior to the Masseter Muscle line and when other minimal invasive techniques fail.


Assuntos
Litíase , Glândula Parótida , Endoscopia , Feminino , Humanos , Masculino , Glândula Parótida/cirurgia , Projetos Piloto , Ductos Salivares/cirurgia
10.
Eur Arch Otorhinolaryngol ; 278(11): 4483-4489, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-33550436

RESUMO

INTRODUCTION: The incidence of distant metastasis (DM) in patients affected by head and neck squamous cell carcinoma (HNSCC) is relatively low, and multiple risk factors were described for the development of distant metastasis. MATERIALS AND METHODS: Retrospective study of patients diagnosed with a HNSCC between July 2016 and July 2020 in a tertiary university hospital. RESULTS: Five-Hundred and sixty-nine patients meet inclusion criteria. In the univariate analysis we found a statistical correlation in those patients affected by a hypopharyngeal tumour (p = < 0.0001), patients older than 60 years old (p = 0.01), advanced T stage (p = < 0.0001), a proven positive lymph node (p = 0.02), poorly differentiated tumour (p = < 0.0001), patients with 3 or more positive lymph nodes (p = 0.0001), with ECS (p = 0.0001) and a second primary tumour (p = 0.03). However, according to those results from our multivariable analysis, the factor related to an increased or higher chance to detect a DM during the diagnosis work-up were the presence of a hypopharyngeal primary tumor with a hazard ratio (HR) of 1.14, p = < 0.0001, advanced T stage (T3-T4) with a HR of 1.21, p = 0.001, poorly differentiated tumor with a HR of 1.04, p = < 0.0001, have proven positive lymph node with a HR of 1.03, p = 0.04, have more than three positive lymph node metastases with a HR of 1.25, p = 0.003, the presence of ECS with a HR of 1.40, p = 0.002, and have a second primary tumor with a HR of 1.05, p = 0.01. CONCLUSION: According to the present study, factors such as hypopharyngeal tumours, advanced T-stage, poor differentiation grade, have more than three positive lymph nodes, ECS and have a second primary tumour should be considered as high-risk indicators for screening. Based on these results, the authors recommend considered an extensive diagnostic work-up in all patients with a high risk of DM development.


Assuntos
Neoplasias de Cabeça e Pescoço , Neoplasias Hipofaríngeas , Segunda Neoplasia Primária , Neoplasias de Cabeça e Pescoço/diagnóstico , Humanos , Neoplasias Hipofaríngeas/diagnóstico , Linfonodos , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Prognóstico , Estudos Retrospectivos , Carcinoma de Células Escamosas de Cabeça e Pescoço
11.
Int J Mol Sci ; 22(14)2021 Jul 13.
Artigo em Inglês | MEDLINE | ID: mdl-34299105

RESUMO

The human gut is the largest organ with immune function in our body, responsible for regulating the homeostasis of the intestinal barrier. A diverse, complex and dynamic population of microorganisms, called microbiota, which exert a significant impact on the host during homeostasis and disease, supports this role. In fact, intestinal bacteria maintain immune and metabolic homeostasis, protecting our organism against pathogens. The development of numerous inflammatory disorders and infections has been linked to altered gut bacterial composition or dysbiosis. Multiple factors contribute to the establishment of the human gut microbiota. For instance, diet is considered as one of the many drivers in shaping the gut microbiota across the lifetime. By contrast, alcohol is one of the many factors that disrupt the proper functioning of the gut, leading to a disruption of the intestinal barrier integrity that increases the permeability of the mucosa, with the final result of a disrupted mucosal immunity. This damage to the permeability of the intestinal membrane allows bacteria and their components to enter the blood tissue, reaching other organs such as the liver or the brain. Although chronic heavy drinking has harmful effects on the immune system cells at the systemic level, this review focuses on the effect produced on gut, brain and liver, because of their significance in the link between alcohol consumption, gut microbiota and the immune system.


Assuntos
Consumo de Bebidas Alcoólicas/efeitos adversos , Disbiose/complicações , Microbioma Gastrointestinal , Sistema Imunitário/imunologia , Inflamação/patologia , Animais , Humanos , Inflamação/etiologia
12.
Chemistry ; 26(59): 13484-13498, 2020 Oct 21.
Artigo em Inglês | MEDLINE | ID: mdl-32668065

RESUMO

Herein, the synthesis and study of bifunctional coordination polymers (CPs) with both magnetic and photoluminescence properties, derived from a heterometallic environment, are reported. As a starting point, three isostructural monometallic CPs with the formula [M(µ-2ani)2 ]n (MII =Mn (1Mn ), Co (3Co ) and Ni (4Ni ); 2ani=2-aminonicotinate), crystallise as chiral 2D-layered structures stacked by means of supramolecular interactions. These compounds show high thermal stability in the solid state (above 350 °C), despite which, in aqueous solution, compound 1Mn is shown to partially transform into a novel 1D chain CP with the formula [Mn(2ani)2 (µ-H2 O)2 ]n (2Mn ). A study of the direct current (dc) magnetic properties of 1Mn , 3Co and 4Ni reveals a spin-canted structure derived from antisymmetric antiferromagnetic weak exchanges along the chiral network (as confirmed by DFT calculations) and magnetic anisotropy of the ions, in such a way that long-range ordering is observed with variable magnitude for the spin carriers. Moreover, compounds 3Co and 4Ni show no frequency-dependent alternating current (ac) susceptibility curves under zero dc field; this is characteristic behaviour of a glassy state that may be partially supressed for 3Co by applying an external dc field. To overcome long-range magnetic ordering, CoII ions are diluted in a diamagnetic ZnII -based matrix, which enables single-molecule magnet behaviour. Interestingly, this strategy allows a bifunctional Cox Zn1-x 2ani material, which is imbued with a strong photoluminescent emitting capacity, as characterised by an intense blue light followed by a green afterglow, to be obtained.

13.
Int J Hyperthermia ; 37(1): 976-991, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32781865

RESUMO

AIM: The Specific Absorption Rate (SAR) is the key parameter to optimize the effectiveness of magnetic nanoparticles in magnetic hyperthermia. AC magnetometry arises as a powerful technique to quantify the SAR by computing the hysteresis loops' area. However, currently available devices produce quite limited magnetic field intensities, below 45mT, which are often insufficient to obtain major hysteresis loops and so a more complete and understandable magneticcharacterization. This limitation leads to a lack of information concerning some basic properties, like the maximum attainable (SAR) as a function of particles' size and excitation frequencies, or the role of the mechanical rotation in liquid samples. METHODS: To fill this gap, we have developed a versatile high field AC magnetometer, capable of working at a wide range of magnetic hyperthermia frequencies (100 kHz - 1MHz) and up to field intensities of 90mT. Additionally, our device incorporates a variable temperature system for continuous measurements between 220 and 380 K. We have optimized the geometrical properties of the induction coil that maximize the generated magnetic field intensity. RESULTS: To illustrate the potency of our device, we present and model a series of measurements performed in liquid and frozen solutions of magnetic particles with sizes ranging from 16 to 29 nm. CONCLUSION: We show that AC magnetometry becomes a very reliable technique to determine the effective anisotropy constant of single domains, to study the impact of the mechanical orientation in the SAR and to choose the optimal excitation parameters to maximize heating production under human safety limits.


Assuntos
Hipertermia Induzida , Hipertermia , Humanos , Campos Magnéticos , Magnetismo , Temperatura
14.
BMC Health Serv Res ; 20(1): 877, 2020 Sep 16.
Artigo em Inglês | MEDLINE | ID: mdl-32938457

RESUMO

BACKGROUND: Health professionals' training is a key element to address unhealthy alcohol use in Primary Care (PC). Education about alcohol use can be effective in improving PC provider's knowledge and skills addressing alcohol-related problems. The aim of the study was to evaluate the training of health professionals to address unhealthy alcohol use in PC. METHODS: An observational, descriptive, cross-sectional, multicenter study was performed. LOCATION: PC centres of the Spanish National Health System (SNHS). PARTICIPANTS: Family physicians, residents and nurses completed an online questionnaire that inquired about their training (none, basic, medium or advanced), knowledge and preventive practices aimed at reducing unhealthy alcohol use. The study population was recruited via random sampling, stratified by the regions of the SNHS's PC centre, and by email invitation to members of two Spanish scientific societies of Family Medicine. RESULTS: A total of 1760 professionals participated in the study. Sixty-seven percent (95% CI: 67.5-71.8) reported not having received specific training to address unhealthy alcohol use, 30% (95% CI: 27.4-31.7) reported having received basic training, and 3% (95% CI: 2.3-4.0) medium/advanced training. The training received was greater in younger providers (p < 0.001) who participated in the PAPPS (Preventive Activities and Health Promotion Programme) (p < 0.001). Higher percentages of providers with intermediate or advanced training reported performing screening for unhealthy alcohol use (p < 0.001), clinical assessment of alcohol consumption (p < 0.001), counselling of patients to reduce their alcohol intake (p < 0.001) or to abstain, in the cases of pregnant women and drivers (p < 0.001). CONCLUSION: Our study reveals a low level of training among Spanish PC providers to address unhealthy alcohol use. A higher percentage of screening, clinical assessment and counselling interventions aimed at reducing unhealthy alcohol use was reported by health professionals with an intermediate or advanced level of training.


Assuntos
Consumo de Bebidas Alcoólicas , Transtornos Relacionados ao Uso de Álcool/diagnóstico , Pessoal de Saúde/educação , Atenção Primária à Saúde , Adulto , Aconselhamento , Estudos Transversais , Feminino , Promoção da Saúde , Humanos , Masculino , Programas de Rastreamento , Pessoa de Meia-Idade , Médicos de Família/educação , Espanha , Inquéritos e Questionários
15.
Eur Arch Otorhinolaryngol ; 277(6): 1707-1714, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32107616

RESUMO

INTRODUCTION: The modern availability in daily practice of different DICOM viewers allows physicians to routinely evaluate computed tomography (CT) and magnetic resonance (MR) scans of patients in the pre-, intra-, and postoperative settings. Their systematic use, together with a close surgeon-radiologist cooperation, may greatly improve outcomes of patients to be treated by transoral microsurgery for laryngeal cancer. MATERIALS AND METHODS: We herein propose guidelines for systematic evaluation of CT/MR images taken from patients affected by supraglottic and glottic cancer to be treated by transoral microsurgery. RESULTS: A methodical, step-by-step approach focused on laryngeal anatomy, systematically looking at each true and false vocal folds, anterior commissure, laryngeal ventricle, subglottic area, epiglottis, thyroid, cricoid, and arytenoid cartilages, posterior commissure, crico-arytenoid unit, paraglottic and pre-epiglottic spaces, and possible extra-laryngeal extension is proposed. This checklist may be useful before imaging performance (to focus on specific issues to be detailed by the radiologist), as well before and during surgery for the specific evaluation of details to be cleared during transoral microsurgery. CONCLUSION: Detailed preoperative evaluation of supraglottic and glottic anatomy is essential prior to any transoral approach for neoplastic disease. The proposed imaging checklist described herein represents a step-by-step guide to surgeons performing this kind of interventions and an aid in achieving a meticulous approach from a surgical perspective.


Assuntos
Neoplasias Laríngeas , Terapia a Laser , Lista de Checagem , Glote/cirurgia , Humanos , Neoplasias Laríngeas/diagnóstico por imagem , Neoplasias Laríngeas/cirurgia , Microcirurgia
16.
Small ; 15(41): e1902626, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-31454160

RESUMO

Magnetotactic bacteria are aquatic microorganisms that internally biomineralize chains of magnetic nanoparticles (called magnetosomes) and use them as a compass. Here it is shown that magnetotactic bacteria of the strain Magnetospirillum gryphiswaldense present high potential as magnetic hyperthermia agents for cancer treatment. Their heating efficiency or specific absorption rate is determined using both calorimetric and AC magnetometry methods at different magnetic field amplitudes and frequencies. In addition, the effect of the alignment of the bacteria in the direction of the field during the hyperthermia experiments is also investigated. The experimental results demonstrate that the biological structure of the magnetosome chain of magnetotactic bacteria is perfect to enhance the hyperthermia efficiency. Furthermore, fluorescence and electron microscopy images show that these bacteria can be internalized by human lung carcinoma cells A549, and cytotoxicity studies reveal that they do not affect the viability or growth of the cancer cells. A preliminary in vitro hyperthermia study, working on clinical conditions, reveals that cancer cell proliferation is strongly affected by the hyperthermia treatment, making these bacteria promising candidates for biomedical applications.


Assuntos
Hipertermia Induzida , Campos Magnéticos , Magnetospirillum/fisiologia , Células A549 , Sobrevivência Celular , Fluorescência , Humanos , Neoplasias Pulmonares/microbiologia , Neoplasias Pulmonares/ultraestrutura , Magnetossomos/química , Magnetossomos/ultraestrutura , Magnetospirillum/ultraestrutura , Temperatura , Fatores de Tempo
17.
Psychol Med ; 49(5): 764-771, 2019 04.
Artigo em Inglês | MEDLINE | ID: mdl-29860958

RESUMO

BACKGROUND: A study conducted as part of the development of the Eleventh International Classification of Mental Disorders for Primary Health Care (ICD-11 PHC) provided an opportunity to test the relationships among depressive, anxious and somatic symptoms in PHC. METHOD: Primary care physicians participating in the ICD-11 PHC field studies in five countries selected patients who presented with somatic symptoms not explained by known physical pathology by applying a 29-item screening on somatic complaints that were under study for bodily stress disorder. Patients were interviewed using the Clinical Interview Schedule-Revised and assessed using two five-item scales that measure depressive and anxious symptoms. Structural models of anxious-depressive symptoms and somatic complaints were tested using a bi-factor approach. RESULTS: A total of 797 patients completed the study procedures. Two bi-factor models fit the data well: Model 1 had all symptoms loaded on a general factor, along with one of three specific depression, anxiety and somatic factors [x2 (627) = 741.016, p < 0.0011, RMSEA = 0.015, CFI = 0.911, TLI = 0.9]. Model 2 had a general factor and two specific anxious depression and somatic factors [x2 (627) = 663.065, p = 0.1543, RMSEA = 0.008, CFI = 0.954, TLI = 0.948]. CONCLUSIONS: These data along with those of previous studies suggest that depressive, anxious and somatic symptoms are largely different presentations of a common latent phenomenon. This study provides support for the ICD-11 PHC conceptualization of mood disturbance, especially anxious depression, as central among patients who present multiple somatic symptoms.


Assuntos
Ansiedade/psicologia , Depressão/psicologia , Sintomas Inexplicáveis , Transtornos Mentais/diagnóstico , Adulto , Estudos Transversais , Humanos , Classificação Internacional de Doenças , Internacionalidade , Modelos Lineares , Modelos Logísticos , Atenção Primária à Saúde , Escalas de Graduação Psiquiátrica , Reprodutibilidade dos Testes
18.
BMC Fam Pract ; 20(1): 104, 2019 07 26.
Artigo em Inglês | MEDLINE | ID: mdl-31349799

RESUMO

BACKGROUND: Alcohol use by health care professionals is one of the potential factors that may affect the prevention of hazardous drinking in Primary Care (PC). The objective of the study was to estimate the prevalence of hazardous alcohol use by PC professionals and assess the existing relationship between socio-demographic and occupational variables of PC professionals and their alcohol use. METHODS: A descriptive, cross-sectional, observational, multicenter study was performed. LOCATION: PC sites of the Spanish National Health Care System (NHS). PARTICIPANTS: Physicians and nurses, who completed an online questionnaire intended to identify the pattern of hazardous alcohol use through the AUDIT-C test. The study population was recruited through random sampling stratified by regions of the PC sites in the NHS. The primary measurements: Frequency of alcohol use, number of drinks containing alcohol on a typical day, frequency of six or more drinks on one occasion. RESULTS: One thousand seven hundred sixty professionals completed the questionnaire. Hazardous alcohol use was detected in 27.80% (95% CI: 25.5-29.7) of PC providers. The prevalence of hazardous alcohol use was higher in males (34.2%) [95% CI: 30.4-37.6] and professionals aged 56 years or over (34.2%) [95% CI: 28.2-40.2]. The multiple logistic regression analysis revealed a higher hazardous use in males (OR = 1.52; 95% CI: 1.22-1.90), PC physicians (OR = 1.42; 95% CI: 1.01-2.02) and professionals with more time worked (OR = 1.03; 95% CI: 1.01-1.05). CONCLUSION: Our study shows the current prevalence of hazardous alcohol use among Spanish PC providers, revealing a higher percentage of hazardous alcohol use in healthcare professionals compared to the Spanish general population. Further interventions are required to increase the awareness of negative consequences derived from alcohol use among PC professionals and its impact on the clinical setting.


Assuntos
Consumo de Bebidas Alcoólicas/epidemiologia , Enfermeiras e Enfermeiros/estatística & dados numéricos , Médicos de Atenção Primária/estatística & dados numéricos , Adulto , Idoso , Estudos Transversais , Feminino , Humanos , Masculino , Prevalência , Espanha/epidemiologia
19.
Am J Otolaryngol ; 40(4): 499-503, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30992144

RESUMO

INTRODUCTION: There are >400 million of native Spanish speakers around the world, being the second most spoken language in regard to the number of native speakers. For this reason, a valid questionnaire to access the quality of our patients after parotidectomy is necessary. MATERIAL AND METHODS: Validation and cross-cultural adaptation of the POI-8 questionnaire to the Spanish language. Internal consistency of Sp-POI 8 measured with Cronbach α. RESULTS: 35 patients met the inclusion criteria during the mentioned period. Mean age was 59 ±â€¯15,37 (Min: 18/Max: 87). 20 patients (57,1%) were male and 15 (42,9%) were female. Internal consistency with Cronbach α was 0.868. The intraclass correlation coefficient was 0.830 [CI] (95%: 0,791-925). Hypoesthesia was the most severely weighted problem (0,91) and xerostomia was the second (0,89). However, the high score was for fear of revision surgery (1,26). CONCLUSION: The Spanish Language is the second most spoken language with regard to the number of native speakers and the Sp-POI 8 translation represents a valid option for the Spanish-speaking medical community, from which a large number of patients can benefit.


Assuntos
Idioma , Glândula Parótida/cirurgia , Inquéritos e Questionários , Tradução , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Medidas de Resultados Relatados pelo Paciente , Qualidade da Assistência à Saúde , Espanha , Adulto Jovem
20.
Aten Primaria ; 51(9): 536-547, 2019 11.
Artigo em Espanhol | MEDLINE | ID: mdl-30262224

RESUMO

OBJECTIVE: To evaluate the effectiveness of training activities directed at Primary Health Care personnel on the management of patients with alcohol consumption problems. DESIGN: A systematic review of randomised controlled trials. DATA SOURCES: Trip Database, Cochrane Central Register of Controlled Trials (CENTRAL), Medline, EMBASE, CINAHL, Web of Science, Scopus, Alcohol and Alcohol Problems Science Database - ETOH and FAMILY RESOURCES DATABASE. The search was performed in June 2017. STUDY SELECTION: The final sample was n=3 studies. Randomised controlled trials, indexed until 30 May 2017, with the objective of assessing the effectiveness of training programs directed at Primary Care providers in the management of patients with alcohol abuse disorder were included. DATA EXTRACTION: The main variables were expressed in terms of effectiveness of the training program: level of global implementation, screening of alcohol consumption, intervention in patients with a consumption risk, and level of support required. RESULTS: Three Randomised controlled trials, published from 1999 to 2004, were included. Both screening and short intervention techniques showed an increase of its application in the three studies after the development of the three training programs. Statistical significance in terms of effectiveness was achieved in 2 of the 3 selected trials: both in detection of risk consumers, and in short intervention. CONCLUSION: The development of training programs in the management of patients with alcohol abuse disorder is an effective strategy for Primary Care providers, allowing the implementation of population screening, as well as the application of intervention techniques.


Assuntos
Consumo de Bebidas Alcoólicas/terapia , Pessoal de Saúde/educação , Atenção Primária à Saúde , Avaliação de Programas e Projetos de Saúde , Humanos , Ensaios Clínicos Controlados Aleatórios como Assunto
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