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1.
J Surg Oncol ; 2024 Aug 19.
Artículo en Inglés | MEDLINE | ID: mdl-39155668

RESUMEN

BACKGROUND AND OBJECTIVES: The American Joint Committee on Cancer (AJCC) TNM staging system defines atypical parathyroid neoplasia (APN) as tumor in situ (Tis) and reserves the definition of parathyroid carcinoma (PC) to parathyroid tumor with invasion into surrounding structures. Because the parathyroid gland has no true capsule, "extension" with APN versus microscopic "invasion" of surrounding soft tissue can be difficult and confusing for clinicians. We aimed to determine the clinical course of atypical parathyroid neoplasm with and without soft tissue extension and parathyroid carcinoma with only soft tissue invasion (pT1) and to report the outcomes. METHODS: Following an IRB-approved protocol, we identified all patients treated for parathyroid neoplasm or cancer at our single tertiary care cancer center from 1990 to 2021. We excluded all patients with evidence of clinical or pathologic gross invasion into surrounding structures (pT2 or higher), lymph node involvement, or metastatic disease. By definition, this excluded all cases where the distinction was clinically evident to the surgeon at the time of the operation based on finding a hard, firm, sticky, or discolored parathyroid gland. Only patients with pathologic T1 (pT1) parathyroid carcinoma or APN were included. All pathologic examinations were independently re-reviewed by a single designated expert senior endocrine pathologist. The definition of APN strictly followed the WHO definition of a clinically worrisome lesion having features including fibrous bands or increased mitotic rate, necrosis, or trabecular growth that did not meet robust criteria for frank invasion. Pathologic T1 disease was defined as invasion limited to soft tissue. Analyses were performed using R version 4.0.2 and Jamovi. RESULTS: Of all PC patients at our institution, only 71 met the strict inclusion criteria of APN or pT1. Forty-four patients had pT1 disease and 27 had APN: 12 of the APN had soft tissue extension, and 15 had no soft tissue extension. The groups were similar with regard to age at diagnosis (p = 0.328). The average follow-up duration was 84 months from initial surgical intervention. Of the 12 with APN, one patient (1/12; 8%) with soft tissue extension recurred, developed distant metastases, and subsequently died during follow up. Of the 44 patients with pT1 PC, six developed distant metastases and 13 (13/44; 30%) died during the follow-up period. One patient with APN and soft tissue extension recurred and died and no patient with APN and no soft tissue extension died. CONCLUSIONS: Patients with APN and extension into soft tissue have a clinical course similar to that of APN without soft tissue extension. APN with soft tissue extension is a different disease from pT1 disease with invasion of soft tissue. The pTis classification appears justified for APN with and without soft tissue extension.

2.
Acta Psychiatr Scand ; 2024 Apr 10.
Artículo en Inglés | MEDLINE | ID: mdl-38600593

RESUMEN

BACKGROUND AND HYPOTHESIS: Speech markers are digitally acquired, computationally derived, quantifiable set of measures that reflect the state of neurocognitive processes relevant for social functioning. "Oddities" in language and communication have historically been seen as a core feature of schizophrenia. The application of natural language processing (NLP) to speech samples can elucidate even the most subtle deviations in language. We aim to determine if NLP based profiles that are distinctive of schizophrenia can be observed across the various clinical phases of psychosis. DESIGN: Our sample consisted of 147 participants and included 39 healthy controls (HC), 72 with first-episode psychosis (FEP), 18 in a clinical high-risk state (CHR), 18 with schizophrenia (SZ). A structured task elicited 3 minutes of speech, which was then transformed into quantitative measures on 12 linguistic variables (lexical, syntactic, and semantic). Cluster analysis that leveraged healthy variations was then applied to determine language-based subgroups. RESULTS: We observed a three-cluster solution. The largest cluster included most HC and the majority of patients, indicating a 'typical linguistic profile (TLP)'. One of the atypical clusters had notably high semantic similarity in word choices with less perceptual words, lower cohesion and analytical structure; this cluster was almost entirely composed of patients in early stages of psychosis (EPP - early phase profile). The second atypical cluster had more patients with established schizophrenia (SPP - stable phase profile), with more perceptual but less cognitive/emotional word classes, simpler syntactic structure, and a lack of sufficient reference to prior information (reduced givenness). CONCLUSION: The patterns of speech deviations in early and established stages of schizophrenia are distinguishable from each other and detectable when lexical, semantic and syntactic aspects are assessed in the pursuit of 'formal thought disorder'.

3.
BMC Health Serv Res ; 24(1): 372, 2024 Mar 25.
Artículo en Inglés | MEDLINE | ID: mdl-38528485

RESUMEN

BACKGROUND: The number and specificities of telehealth service units that expanded their services and diversified with the COVID-19 pandemic in Brazil need to be discovered. The objective of this manuscript is to present a methodology for the diagnostic evaluation of 19 telehealth units from different regions of the country for federal governmental decision-making. METHODS: A cross-sectional quantitative and qualitative study was carried out in the form of a census based on administrative records with an online survey and in-depth interviews with local telehealth managers. RESULTS: Despite the discontinuity of regular funding, the results point to a diversity of initiatives and advances. Citizenship, sustainability, security, and budget management are recurring themes in the maturity analysis of telehealth services after the advent of the pandemic. CONCLUSION: It is necessary for Brazil to build a resilient model of the maturity of telehealth services that contemplates the different regional scenarios.


Asunto(s)
COVID-19 , Telemedicina , Humanos , Brasil/epidemiología , Pandemias , Estudios Transversales , COVID-19/epidemiología , Prueba de COVID-19
4.
Planta ; 258(6): 118, 2023 Nov 14.
Artículo en Inglés | MEDLINE | ID: mdl-37962720

RESUMEN

MAIN CONCLUSION: After bud burst, a transcriptional reprogramming of the shikimate and phenylpropanoid pathways occurs in grapevine canes resulting in the accumulation of stilbenoids like resveratrol and viniferin. Stilbenoids are phenylpropanoid compounds with important biological properties and biotechnological applications that are synthesized in grapevine in response to different stresses. Although they are found in woody tissues, such as canes and buds, their biosynthesis and accumulation have been essentially described in berries. We have previously shown that transcripts encoding secondary metabolism enzymes accumulate in grapevine canes following the transition from dormancy (E-L 1) to bud burst (E-L 4) suggesting that secondary metabolites may accumulate in grapevine canes during this transition. In the present study, using UPLC-MS we demonstrate the accumulation of important metabolites such as ferulic acid and the stilbenoids E-resveratrol, E-piceatannol and E-ε-viniferin. Stilbenoids accumulation correlated with the increased expression of several stilbene synthase genes and of VviMYB14, encoding a transcription factor that regulates stilbene biosynthesis. In addition, a general stimulation of the plastidial shikimate pathway was observed. Taken together, results show that important secondary metabolites accumulate in the woody canes during bud burst. These findings may aid biotechnological approaches aimed at extracting biologically active phenolic compounds, including stilbenoids, from grapevine woody tissues.


Asunto(s)
Espectrometría de Masas en Tándem , Madera , Cromatografía Liquida , Resveratrol
5.
BMC Public Health ; 23(1): 2069, 2023 10 23.
Artículo en Inglés | MEDLINE | ID: mdl-37872552

RESUMEN

BACKGROUND: Sexual and gender minorities (SGM) experience higher rates of discrimination and violence when compared to cis, heterosexual peers. However, violent crimes and other hate incidents against SGM persons are consistently not reported and prosecuted because of chronic distrust between the SGM community and police. Brazil is one of the most dangerous countries for SGM persons globally. Herein, we describe the development of a mobile health intervention to address the rampant violence against this population, the Rainbow Resistance-Dandarah app. METHODS: We conducted community-based participatory research (CBPR) between 2019 and 2020. The study started with in-depth interviews (IDIs) and focus group discussions (FGDs) with representatives of the SGM community from Brazil. Descriptive qualitative data analysis included the plotting of a 'word cloud', to visually represent word frequency, data coding and analysis of more frequent themes related to app acceptability, usability, and feasibility. A sub-sample of SGM tested the app and suggested improvements, and the final version was launched in December 2019. RESULTS: Since the app was launched in December 2019, the app recorded 4,114 active SGM users. Most participants are cisgender men (50.9%), self-identified as gay (43.5%), White (47.3%), and aged 29 or less (60.9%). FGDs and IDIs participants discussed the importance of the app in the context of widespread violence toward SGM persons. Study participants perceived this mHealth strategy as an important, effective, and accessible for SGM surviving violence. The CBPR design was highlighted as a key strategy that allowed SGM persons to collaborate in the design of this intervention actively. Some users reported how the panic button saved their lives during violent attacks. CONCLUSIONS: Rainbow Resistance-Dandarah app was endorsed as a powerful tool for enhancing reporting episodes of violence/discrimination against SGM persons and a key strategy to connect users with a safe network of supportive services. Results indicate that the app is an engaging, acceptable, and potentially effective mHealth intervention. Participants reported many advantages of using it, such as being able to report harassment and violence, connect with a safe network and receive immediate support.


Asunto(s)
Minorías Sexuales y de Género , Personas Transgénero , Masculino , Femenino , Humanos , Brasil , Conducta Sexual , Identidad de Género , Violencia/prevención & control
6.
Curr Hypertens Rep ; 24(4): 95-106, 2022 04.
Artículo en Inglés | MEDLINE | ID: mdl-35107787

RESUMEN

PURPOSE OF REVIEW: To perform a narrative systematic review on refractory hypertension (RfHT) with particular emphasis on prognosis. RECENT FINDINGS: There were 37 articles on RfHT, 13 non-systematic reviews, and 24 original studies. RfHT, a recently described extreme phenotype of anti-hypertensive treatment failure, shall be defined as uncontrolled out-of-office blood pressure (BP) levels despite the use of at least 5 anti-hypertensive drugs, including a long-acting diuretic and a mineraloreceptor antagonist. Its prevalence ranges from 0.5 to 4.3% of general treated hypertensives and between 3.6 and 51.4% of patients with resistant hypertension (RHT). RfHT is associated with younger age, African ancestry, obesity, hypertension-mediated organ damage and clinical cardiovascular diseases, and with some comorbidities, such as diabetes and obstructive sleep apnea. Its physiopathological mechanisms probably involve sympathetic overactivity and not volume overload. Patients with RfHT have a worse prognosis than non-refractory RHT individuals, with higher risks of adverse cardiovascular and renal outcomes and of mortality. RfHT represents a rare but true extreme phenotype of anti-hypertensive treatment failure distinct from RHT and with a significantly worse prognosis. Identifying such individuals is important to tailor specific interventions.


Asunto(s)
Hipertensión , Antihipertensivos/farmacología , Antihipertensivos/uso terapéutico , Presión Sanguínea/fisiología , Diuréticos/uso terapéutico , Humanos , Pronóstico
7.
Public Health Nutr ; 24(18): 6218-6226, 2021 12.
Artículo en Inglés | MEDLINE | ID: mdl-34037518

RESUMEN

OBJECTIVE: Developing health promotion activities, aimed at healthy food intake, is essential for improving quality of life and reducing the prevalence of chronic diseases. Thus, the objective of this study is to describe both dietary and nutrient intake, according to length of participation in a health promotion service (Programa Academia da Saúde - PAS). DESIGN: A cross-sectional study was carried out with a representative sample of PAS units in vulnerable areas of the city. Dietary and nutrient intake were assessed, using the average of two 24-h recalls. Food was categorised according to the NOVA (a systematic grouping of all foods according to the nature, extent and purpose of the industrial processes they undergo) classification. The length of participation in PAS is presented in months and is then examined in tertiles for analysis. SETTING: Belo Horizonte - Brazil. PARTICIPANTS: 3372 adults (≥20 years). RESULTS: Users in the third tertile of PAS (24·4-61·6 months) experienced less energy intake, lipids and ultra-processed foods, and more culinary preparations, compared to others. Users in the second (10·1-24·3 months) and third tertiles of PAS had higher carbohydrate intake, Ca and vitamin C v those in the first tertile (0-10 months). CONCLUSIONS: Results suggest that greater participation in PAS can improve dietary and nutrient intake, showing its potential to promote healthy lifestyles, prevent chronic diseases and offer longitudinal health care.


Asunto(s)
Manipulación de Alimentos , Calidad de Vida , Adulto , Brasil , Estudios Transversales , Dieta , Ingestión de Alimentos , Ingestión de Energía , Comida Rápida , Promoción de la Salud , Humanos
8.
Telemed J E Health ; 27(8): 881-897, 2021 08.
Artículo en Inglés | MEDLINE | ID: mdl-34232749

RESUMEN

Background: This review aimed to map initiatives for measuring the satisfaction of vulnerable populations with teleconsultation services offered by public and private health care providers in their territories, during the coronavirus disease (COVID-19) pandemic. Systematic studies on the opinions of people most affected by health inequities are limited. Therefore, we included evaluations of teleconsultation-based services offered to socioeconomically disadvantaged and clinically vulnerable populations globally, with a focus on surveillance, treatment, and prevention of COVID-19. Materials and Methods: This review includes analytical and descriptive observational studies primarily from MEDLINE, EMBASE, SCOPUS, and Web of Science databases, published after the World Health Organization received the first warnings about COVID-19 from Chinese authorities in December, 2019, until December 2020. The search strategy combined aspects of COVID-19, telemedicine, patient satisfaction, and key concepts of vulnerable populations. Results: We selected 33 studies for full-text reading and 10 for critical appraisal. Two categories emerged from the qualitative analysis: telehealth evaluation and services during COVID-19, and opinions of vulnerable populations. Television and social networks play a crucial role in providing information. Although teleconsultations are practical and cost effective for patients, the majority preferred receiving in-person treatment in primary care clinics. Conclusions: Listening to the opinions of vulnerable groups and their caregivers is critical both before and during adoption of COVID-19 control measures. Health managers need to monitor the health of and delivery of services to socioeconomically and clinically vulnerable people closely, to improve services, and provide care from a human rights perspective.


Asunto(s)
COVID-19 , Consulta Remota , Telemedicina , Humanos , Pandemias , SARS-CoV-2
9.
J Exp Bot ; 71(21): 6789-6798, 2020 12 02.
Artículo en Inglés | MEDLINE | ID: mdl-32584998

RESUMEN

Silicon (Si) supplementation has been shown to improve plant tolerance to different stresses, and its accumulation in the aerial organs is mediated by NIP2;1 aquaporins (Lsi channels) and Lsi2-type exporters in roots. In the present study, we tested the hypothesis that grapevine expresses a functional NIP2;1 that accounts for root Si uptake and, eventually, Si accumulation in leaves. Own-rooted grapevine cuttings of the cultivar Vinhão accumulated >0.2% Si (DW) in leaves when irrigated with 1.5 mM Si for 1 month, while Si was undetected in control leaves. Real-time PCR showed that VvNIP2;1 was highly expressed in roots and in green berries. The transient transformation of tobacco leaf epidermal cells mediated by Agrobacterium tumefaciens confirmed VvNIP2;1 localization at the plasma membrane. Transport experiments in oocytes showed that VvNIP2;1 mediates Si and arsenite uptake, whereas permeability studies revealed that VvNIP2;1 expressed in yeast is unable to transport water and glycerol. Si supplementation to pigmented grape cultured cells (cv. Gamay Freáux) had no impact on the total phenolic and anthocyanin content, or on the growth rate and VvNIP2;1 expression. Long-term experiments should help determine the extent of Si uptake over time and whether grapevine can benefit from Si fertilization.


Asunto(s)
Acuaporinas , Vitis , Acuaporinas/genética , Hojas de la Planta/metabolismo , Proteínas de Plantas/genética , Proteínas de Plantas/metabolismo , Raíces de Plantas/metabolismo , Silicio/metabolismo , Vitis/genética , Vitis/metabolismo
10.
Planta ; 248(3): 559-568, 2018 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-30022278

RESUMEN

MAIN CONCLUSION: The elucidation of the molecular mechanisms of starch synthesis and mobilization in perennial woody tissues is of the utmost scientific and agricultural importance. Starch is the main carbohydrate reserve in plants and is fundamental in human nutrition and several industrial processes. In leaves, starch accumulated during the day is degraded throughout the night and the resulting sugars, glucose and maltose, are exported to the cytosol by the specialized transmembrane translocators pGT and MEX, respectively. Nevertheless, the degradation of the starch granule is a complex process not completely elucidated. While the mechanisms of starch mobilization during germination in the dead endosperm of cereal seeds are well described, the molecular and biochemical mechanisms involved in starch storage in the heterotrophic tissues of woody plants and its utilization in spring and winter are still puzzling. It is known that some biochemical steps of starch synthesis are conserved in heterotrophic tissues and in the leaves, but some aspects are particular to sink organs. From an agronomic standpoint, the knowledge on starch storage and mobilization in woody tissues is pivotal to understand (and to optimize) some common practices in the field that modify source-sink relationships, such as pruning and defoliation. Soluble sugars resulting from starch are also pivotal to cold adaptation, and in several fruits, such as banana and kiwifruit, starch may provide soluble sugars during ripening. In this review, we explore the recent advances on the molecular mechanisms and regulations involved in starch synthesis and mobilization, with a focus on perennial woody tissues.


Asunto(s)
Almidón/metabolismo , Madera/metabolismo , Redes y Vías Metabólicas , Hojas de la Planta/metabolismo , Estaciones del Año , Semillas/metabolismo
11.
Planta ; 248(3): 569, 2018 09.
Artículo en Inglés | MEDLINE | ID: mdl-30073511

RESUMEN

The original article was corrected.

12.
Virol J ; 15(1): 112, 2018 07 24.
Artículo en Inglés | MEDLINE | ID: mdl-30041676

RESUMEN

BACKGROUND: Chikungunya (CHIKV) virus is an important mosquito-borne virus causing outbreaks of acute febrile illness with arthropathy. The detection of specific antibodies against CHIKV is used for diagnosis after the acute viremic phase of the disease. However, a major challenge for serologic diagnosis of CHIKV and other alphaviruses is the cross-reactivity of antibodies to common antigens among these viruses. In the present study, we have developed an enzyme-linked immunosorbend assay using a recombinant envelope protein 2 of CHIKV produced in Escherichia coli system, as a capture antigen. RESULTS: High titers (1600 to 12,800) of anti-CHIKV antibodies were detected in human sera analyzed by the CHIKV assay, suggesting it may detect low levels of the antibodies presence. On the other side, cross-reactivity was not observed in mouse hyperimmune sera to Mayaro virus and other alphaviruses analyzed by the CHIKV immunosorbend assay, suggesting it is a CHIKV-specific test. Fifty-nine human serum samples of CHIKV infection suspected cases were tested for immunoglobulin G (IgG) and M (IgM) antibodies detection using the CHIKV immunosorbend assay. A total of 44% (26/59) of samples were positive for IgG to CHIKV, determining 89.66% sensitivity and 100% specificity when the assay is compared to a CHIKV-specific neutralization assay. In addition, 40.6% (24/59) of samples were positive for IgM, determining 92.48% sensitivity and 79.04% specificity by a Bayesian method in the absence of a gold standard. Moreover, CHIKV immunosorbend assay showed similar sensibilities to a commercial immunochromatography assay (Lumiquick, USA) for CHIKV IgG and IgM detection. CONCLUSION: In short, we have developed a rapid, simple, specific and sensitive CHIKV immunosorbend assay for IgG and IgM detection and our results showed potential applicability on the diagnosis of infections by this virus.


Asunto(s)
Antígenos Virales/inmunología , Fiebre Chikungunya/diagnóstico , Fiebre Chikungunya/inmunología , Virus Chikungunya/inmunología , Ensayo de Inmunoadsorción Enzimática , Proteínas del Envoltorio Viral/inmunología , Anticuerpos Neutralizantes/inmunología , Anticuerpos Antivirales/inmunología , Humanos , Inmunoglobulina G/sangre , Inmunoglobulina G/inmunología , Inmunoglobulina M/sangre , Inmunoglobulina M/inmunología , Pruebas de Neutralización , Proteínas Recombinantes , Sensibilidad y Especificidad
13.
Immunology ; 150(1): 115-126, 2017 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-27618667

RESUMEN

The clinical benefits of short-term therapy with glucocorticoids (GC) in patients with inflammatory bowel disease (IBD) are widely known. However, the effects of this treatment towards the re-establishment of the regulatory network in IBD are not fully explored. We have evaluated the immunological effects of the abbreviated GC therapy in experimental colitis induced by 3% dextran sulphate sodium in C57BL/6 mice. Treatment with GC improved disease outcome, constrained circulating leucocytes and ameliorated intestinal inflammation. The control of the local inflammatory responses involved a reduction in the expression of interferon-γ and interleukin-1ß, associated with augmented mRNA levels of peroxisome proliferator-activated receptors (α and γ) in intestine. Furthermore, there was a reduction of CD4+ T cells producing interferon-γ, together with an increased frequency of the putative regulatory population of T cells producing interleukin-10, in spleen. These systemic alterations were accompanied by a decrease in the proliferative potential of splenocytes of mice treated in vivo with GC. Notably, treatment with GC also led to an increase in the frequency of the regulatory markers GITR, CTLA-4, PD-1, CD73 and FoxP3, more prominently in spleen. Taken together, our results pointed to a role of GC in the control of leucocyte responsiveness and re-establishment of a regulatory system, which probably contributed to disease control and the restoration of immune balance. Finally, this is the first time that GC treatment was associated with the modulation of a broad number of regulatory markers in an experimental model of colitis.


Asunto(s)
Colitis/tratamiento farmacológico , Glucocorticoides/uso terapéutico , Subgrupos de Linfocitos T/inmunología , Linfocitos T Reguladores/inmunología , Animales , Antígenos CD4/metabolismo , Células Cultivadas , Protocolos Clínicos , Colitis/inducido químicamente , Sulfato de Dextran , Proteína Relacionada con TNFR Inducida por Glucocorticoide/metabolismo , Humanos , Inmunomodulación , Interferón gamma/metabolismo , Interleucina-10/metabolismo , Interleucina-1beta/metabolismo , Masculino , Ratones , Receptores Activados del Proliferador del Peroxisoma/metabolismo
14.
Planta ; 246(3): 525-535, 2017 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-28526983

RESUMEN

MAIN CONCLUSION: Severe leaf removal decreases storage starch and sucrose in grapevine cv. Cabernet Sauvignon fruiting cuttings and modulates the activity of key enzymes and the expression of sugar transporter genes. Leaf removal is an agricultural practice that has been shown to modify vineyard efficiency and grape and wine composition. In this study, we took advantage of the ability to precisely control the number of leaves to fruits in Cabernet Sauvignon fruiting cuttings to study the effect of source-sink ratios (2 (2L), 6 (6L) and 12 (12) leaves per cluster) on starch metabolism and accumulation. Starch concentration was significantly higher in canes from 6L (42.13 ± 1.44 mg g DW-1) and 12L (43.50 ± 2.85 mg g DW-1) than in 2L (22.72 ± 3.10 mg g DW-1) plants. Moreover, carbon limitation promoted a transcriptional adjustment of genes involved in starch metabolism in grapevine woody tissues, including a decrease in the expression of the plastidic glucose-6-phosphate translocator, VvGPT1. Contrarily, the transcript levels of the gene coding the catalytic subunit VvAGPB1 of the VvAGPase complex were higher in canes from 2L plants than in 6L and 12L, which positively correlated with the biochemical activity of this enzyme. Sucrose concentration increased in canes from 2L to 6L and 12L plants, and the amount of total phenolics followed the same trend. Expression studies showed that VvSusy transcripts decreased in canes from 2L to 6L and 12L plants, which correlated with the biochemical activity of insoluble invertase, while the expression of the sugar transporters VvSUC11 and VvSUC12, together with VvSPS1, which codes an enzyme involved in sucrose synthesis, increased. Thus, sucrose seems to control starch accumulation through the adjustment of the cane sink strength.


Asunto(s)
Proteínas de Transporte de Monosacáridos/metabolismo , Tallos de la Planta/metabolismo , Almidón/metabolismo , Vitis/metabolismo , Metabolismo de los Hidratos de Carbono/fisiología , Cromatografía Líquida de Alta Presión , Regulación de la Expresión Génica de las Plantas/fisiología , Microscopía Electrónica de Rastreo , Tallos de la Planta/fisiología , Tallos de la Planta/ultraestructura , Reacción en Cadena en Tiempo Real de la Polimerasa , Vitis/enzimología , Vitis/fisiología , beta-Fructofuranosidasa/metabolismo
15.
J Strength Cond Res ; 31(11): 3018-3023, 2017 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-29068863

RESUMEN

Barbosa, AC, Martins, FM, Silva, AF, Coelho, AC, Intelangelo, L, and Vieira, ER. Activity of lower limb muscles during squat with and without abdominal drawing-in and Pilates breathing. J Strength Cond Res 31(11): 3018-3023, 2017-The purpose of this study was to assess the effects of abdominal drawing-in and Pilates breathing on the activity of lower limb muscles during squats. Adults (n = 13, 22 ± 3 years old) with some Pilates experience performed three 60° squats under each of the following conditions in a random order: (I) normal breathing, (II) drawing-in maneuver with normal breathing, and (III) drawing-in maneuver with Pilates breathing. Peak-normalized surface electromyography of the rectus femoris, biceps femoris, gastrocnemius medialis, and tibialis anterior during the knee flexion and extension phases of squat exercises was analyzed. There were significant differences among the conditions during the knee flexion phase for the rectus femoris (p = 0.001), biceps femoris (p = 0.038), and tibialis anterior (p = 0.001), with increasing activation from conditions I to III. For the gastrocnemius medialis, there were significant differences among the conditions during the knee extension phase (p = 0.023), with increased activity under condition I. The rectus and biceps femoris activity was higher during the extension vs. flexion phase under conditions I and II. The tibialis anterior activity was higher during the flexion compared with the extension phase under all conditions, and the medial gastrocnemius activity was higher during the extension phase under condition I. Doing squats with abdominal drawing-in and Pilates breathing resulted in increased rectus, biceps femoris, and tibialis anterior activity during the flexion phase, increasing movement stability during squat exercises.


Asunto(s)
Abdomen/fisiología , Técnicas de Ejercicio con Movimientos/métodos , Extremidad Inferior/fisiología , Músculo Esquelético/fisiología , Respiración , Adulto , Electromiografía , Femenino , Humanos , Articulación de la Rodilla/fisiología , Masculino , Músculo Cuádriceps/fisiología , Rango del Movimiento Articular
16.
Ann Surg Oncol ; 23(9): 2889-97, 2016 09.
Artículo en Inglés | MEDLINE | ID: mdl-27160525

RESUMEN

INTRODUCTION: The differentiation of benign parathyroid gland atypia and true parathyroid carcinoma (PC) can be challenging. In some instances, patients are classified as having 'atypical parathyroid neoplasms' (APNs), explicitly acknowledging that the distinction between benign and malignant disease appears impossible to determine. This 'grey area' diagnosis makes rendering an accurate prognosis difficult, and clouds clinical management and treatment planning. METHODS: We performed a retrospective chart review of all patients undergoing operation for primary hyperparathyroidism in our institution (2000-2014). Patients with a histopathological diagnosis of PC or APN were included. Demographics, clinical characteristics, and survival rates were analyzed, and analysis was conducted using SAS 9.4 (SAS Institute, Inc., Cary, NC, USA). RESULTS: Fifty-four patients were included in the study-31 (57.41 %) with PC and 23 (42.59 %) with APN. PC versus APN was associated with higher parathyroid hormone (PTH) (p = 0.005) and with males (p = 0.002). Five-year overall survival (OS) from diagnosis was 82.64 % [95 % confidence interval (CI) 59.82-93.17] for the PC group and 93.33 % (95 % CI 61.26-99.03) for the APN group, while the 5-year recurrence-free survival rate was 59.63 % (95 % CI 36.32-76.81) in the PC group and 90.91 % (95 % CI 50.81-98.67) in the APN group. CONCLUSION: PC and APN are distinct clinical entities with differences in tumor biology reflected in overall recurrence rates, disease-free survival, and OS. APNs present with a less accentuated biochemical profile and demonstrate an indolent clinical course compared with PCs. Efforts to improve categorization and staging of PC and APN are needed.


Asunto(s)
Carcinoma/secundario , Recurrencia Local de Neoplasia , Hormona Paratiroidea/sangre , Neoplasias de las Paratiroides/patología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Carcinoma/sangre , Carcinoma/complicaciones , Carcinoma/cirugía , Supervivencia sin Enfermedad , Fatiga/etiología , Femenino , Humanos , Hiperparatiroidismo Primario/sangre , Hiperparatiroidismo Primario/etiología , Hiperparatiroidismo Primario/cirugía , Cálculos Renales/etiología , Masculino , Trastornos de la Memoria/etiología , Persona de Mediana Edad , Recurrencia Local de Neoplasia/patología , Neoplasias de las Paratiroides/sangre , Neoplasias de las Paratiroides/complicaciones , Neoplasias de las Paratiroides/cirugía , Estudios Retrospectivos , Factores Sexuales , Tasa de Supervivencia , Adulto Joven
17.
Clin Endocrinol (Oxf) ; 85(3): 400-7, 2016 09.
Artículo en Inglés | MEDLINE | ID: mdl-27256431

RESUMEN

OBJECTIVE: Pancreatic neuroendocrine tumours (PNETs) are the major source of disease-specific mortality in multiple endocrine neoplasia type 1 (MEN1) patients. Chromogranin A (CgA), pancreatic polypeptide (PP), glucagon and gastrin have some diagnostic value in sporadic PNETs, but there is very little evidence for their efficacy in diagnosing PNETs in MEN1 patients. DESIGN: We performed a retrospective chart review of the existing MEN1 database in our institution. PATIENTS: One hundred and thirteen patients were eligible for diagnostic value analysis of tumour markers. Patients were excluded if measurement of tumour markers was missing, either 3 months prior to PNET diagnosis (PNET patients) or prior to abdominal imaging (non-PNET patients). MEASUREMENTS: Clinicopathologic characteristics and of tumour marker measurements were analysed. RESULTS: Of 293 confirmed MEN1 cases, 55 PNETs and 58 non-PNETs met inclusion criteria. The area under the curve (AUC) for CgA, PP, glucagon and gastrin in MEN1 cases was 59·5%, 64·1%, 77·0% and 75·9%, respectively. The AUC for the combination of CgA, PP and gastrin was 59·6%. PP, but not CgA, glucagon or gastrin was significantly associated with both age and PNET functional status (P = 0·0485 and 0·0188, respectively). No markers were significantly associated with sex, PNET size, tumour number, tumour location, American Joint Committee on Cancer (AJCC) stage, presence of lymph node metastasis, lymphovascular invasion or overall survival. CgA values were not significantly lower following PNET resection than pre-operatively (P = 0·554). CONCLUSIONS: The value of blood markers for diagnosing PNETs in MEN1 patients is relatively low, even when used in combination.


Asunto(s)
Biomarcadores de Tumor/sangre , Neoplasia Endocrina Múltiple Tipo 1/patología , Tumores Neuroendocrinos/diagnóstico , Neoplasias Pancreáticas/diagnóstico , Adolescente , Adulto , Anciano , Área Bajo la Curva , Cromogranina A/sangre , Femenino , Gastrinas/sangre , Glucagón/sangre , Humanos , Masculino , Persona de Mediana Edad , Polipéptido Pancreático/sangre , Estudios Retrospectivos , Adulto Joven
18.
J Surg Oncol ; 114(6): 708-713, 2016 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-27753088

RESUMEN

BACKGROUND AND OBJECTIVES: Parathyroid carcinoma (PC) is rare but potentially lethal. No standardized staging system or treatment guidelines have been established. We aimed to determine whether management of PC and patient outcomes have changed at our institution over the past 35 years. METHODS: Retrospective review of patients with PC at our institution between 1980 and 2015. Patients were grouped by date of initial surgery: group 1, 1980-2001; group 2, 2002-2015. RESULTS: About 57 patients (26 in group 1; 31 in group 2) were included. Group 2 had more female patients (61%) than group 1 (31%; P = 0.033). Patients in group 2 were older at the time of initial operation (mean age 48 years in group 1 (SD:14.3) and 56 years (SD:14.6) in group 2; P = 0.034). The 5-year OS rates were 82% (95%CI 59.6%, 93%) for group 1 and 72% (95%CI 45.0%, 87.7%) for group 2. The 5-year DFS rates were 62% (95%CI 36.4%, 79.9%) for group 1 and 66% (95%CI 40.6%, 82.2%) for group 2. CONCLUSION: Management of PC and patient outcomes (OS and DFS) have not significantly changed over the past 35 years at our institution. This rare malignancy needs oncologic improvement. J. Surg. Oncol. 2016;114:708-713. © 2016 Wiley Periodicals, Inc.


Asunto(s)
Carcinoma/cirugía , Neoplasias de las Paratiroides/cirugía , Paratiroidectomía , Adulto , Anciano , Carcinoma/diagnóstico , Carcinoma/mortalidad , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Neoplasias de las Paratiroides/diagnóstico , Neoplasias de las Paratiroides/mortalidad , Estudios Retrospectivos , Análisis de Supervivencia , Resultado del Tratamiento
19.
Mediators Inflamm ; 2016: 4936370, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27403034

RESUMEN

The adrenal glands are able to modulate immune responses through neuroimmunoendocrine interactions and cortisol secretion that could suppress exacerbated inflammation such as in inflammatory bowel disease (IBD). Therefore, here we evaluated the role of these glands in experimental colitis induced by 3% dextran sulfate sodium (DSS) in C57BL/6 mice subjected to adrenalectomy, with or without glucocorticoid (GC) replacement. Mice succumbed to colitis without adrenals with a higher clinical score and augmented systemic levels of IL-6 and lower LPS. Furthermore, adrenalectomy negatively modulated systemic regulatory markers. The absence of adrenals resulted in augmented tolerogenic lamina propria dendritic cells but no compensatory local production of corticosterone and decreased mucosal inflammation associated with increased IFN-γ and FasL in the intestine. To clarify the importance of GC in this scenario, GC replacement in adrenalectomized mice restored different markers to the same degree of that observed in DSS group. Finally, this is the first time that adrenal-derived hormones, especially GC, were associated with the differential local modulation of the gut infiltrate, also pointing to a relationship between adrenalectomy and the modulation of systemic regulatory markers. These findings may elucidate some neuroimmunoendocrine mechanisms that dictate colitis outcome.


Asunto(s)
Glándulas Suprarrenales/metabolismo , Colitis/inmunología , Adrenalectomía , Animales , Colitis/inducido químicamente , Dexametasona/farmacología , Sulfato de Dextran/toxicidad , Ensayo de Inmunoadsorción Enzimática , Proteína Ligando Fas/metabolismo , Citometría de Flujo , Glucocorticoides/farmacología , Interferón gamma/metabolismo , Mucosa Intestinal/metabolismo , Lipopolisacáridos/farmacología , Masculino , Ratones Endogámicos C57BL
20.
Arch Gynecol Obstet ; 289(1): 119-22, 2014 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-23860693

RESUMEN

OBJECTIVE: The purpose of this study was to further understand interrelationships between insulin resistance in PCOS and elevated diastolic blood pressure. DESIGN: A prospective case control study. PARTICIPANTS: Fifty normal women and 43 PCOS patients, 16 of them with insulin resistance. SETTING: Academic Institution. INTERVENTIONS: Clinical, anthropometric and ultrasonographic features of PCOS were assessed, as were blood levels for luteinizing hormone, follicle-stimulating hormone, androstenedione, DHEAS, and basal insulin. A lipid profile and an oral glucose tolerance test (OGTT) were also performed. MAIN OUTCOME MEASURES: To demonstrate the effect of insulin resistance on blood pressure in patients with PCOS. RESULTS: Patients with PCOS and those with PCOS plus insulin resistance (IR) had significantly elevated levels of plasma androgen but only those with IR showed greater body mass index and waist: hip ratios than PCOS or control. PCOS plus IR differed significantly in their response to OGTT when compared to PCOS or control. Alterations in lipid profile were shown to be atherogenic. Patients with PCOS plus IR demonstrated a significant elevation of diastolic blood pressure when compared to PCOS alone or controls. CONCLUSIONS: We hypothesize that hyperlipidemia and IR may be involved in the pathophysiologic features of the elevated diastolic blood pressure in PCOS patients.


Asunto(s)
Presión Sanguínea/fisiología , Resistencia a la Insulina/fisiología , Insulina/sangre , Síndrome del Ovario Poliquístico/fisiopatología , Adulto , Androstenodiona/sangre , Glucemia , Índice de Masa Corporal , Estudios de Casos y Controles , Sulfato de Deshidroepiandrosterona/sangre , Femenino , Hormona Folículo Estimulante/sangre , Prueba de Tolerancia a la Glucosa , Humanos , Hormona Luteinizante/sangre , Síndrome del Ovario Poliquístico/sangre , Estudios Prospectivos
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