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1.
J Med Virol ; 95(5): e28762, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-37212334

RESUMO

The vaginal microbiome has emerged as potentially influencing the natural history of Human Papillomavirus (HPV) infections and their clinical impact. We aimed to characterize the vaginal microbiome in samples from 807 high-risk HPVs (Hr-HPV) positive women with a mean age of 41.45 ± 10.79 years who participated in the Regional Cervical Cancer Screening Program from the Northern Region of Portugal. Microbiome analysis was performed with commercial kits for the detection of 21 microorganisms. The most frequent microorganisms were Ureaplasma parvum (52.5%), Gardnerella vaginalis (GV) (34.5%), Atopobium vaginae (AV) (32.6%), Lacto (30.7%), and Mycoplasma hominis (MH) (23.5%). The distribution according to age reveals that MH, Mega1, GV, BVab2, AV, and Mob were more prevalent in women older than 41 years of age (p < 0.050), while Lacto is significantly decreased in this group (23.5% vs. 39.4%, p < 0.001; RR = 0.47). The risk analysis showed that Hr-HPV-16/-18 and Hr-HPV-9val genotypes are associated with an increased risk of developing cervical abnormalities, while Lacto (p < 0.001; odd ratio [OR] = 0.33), GV (p = 0.0111; OR = 0.41), AV (p = 0.033; OR = 0.53) and Mob (p = 0.022; OR = 0.29) are associated with protection. Similar results were found for the risk of development atypical squamous cells cannot exclude HSIL/high-grade squamous intraepithelial lesion. Overall, the multivariate analysis confirmed that lactobacillus and bacteria associated with bacterial vaginosis (GV, AV, and Mob) are associated with protection against the development of cervical abnormalities. This study provides important data to be included in the future management of risk stratification for Hr-HPV-positive women.


Assuntos
Microbiota , Infecções por Papillomavirus , Displasia do Colo do Útero , Neoplasias do Colo do Útero , Feminino , Humanos , Adulto , Pessoa de Meia-Idade , Neoplasias do Colo do Útero/diagnóstico , Infecções por Papillomavirus/diagnóstico , Detecção Precoce de Câncer/métodos , Papillomaviridae/genética
2.
J Med Virol ; 95(1): e28414, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-36541747

RESUMO

Cervical cancer prevention is based on primary prevention with vaccines against Human Papillomavirus (HPV) and secondary prevention by screening with High-Risk-HPV (Hr-HPV) detection. Since 2017, cervical cancer screening in women aged 25-60 years has been performed in Portugal using Hr-HPV detection, followed by cytology in Hr-HPV-positive cases. Herein we report the prevalence of Hr-HPV genotypes and cytological abnormalities among 462 401 women (mean age: 43.73 ± 10.79; median age: 45; range: 24-66 years) that participated in the Regional Cervical Cancer Screening Program of the Northern Region of Portugal, performed between August 2016 and December 2021. Overall, we describe a prevalence rate of 12.50% for Hr-HPV varying from 20.76% at age 25% to 8.32% at age 64. The five most common Hr-HPV genotypes identified were HPV-68 (16.09%), HPV-31 (15.30%), HPV-51 (12.96%), HPV-16 (11.06%), and HPV-39 (11.01%). The prevalence of Hr-HPV included in the nonavalent vaccine (HPV-9valent) was 55.00% ranging from 47.78% to 59.18% across different age groups. Considering positive Hr-HPV cases, 65.68% had a Negative for Intraepithelial Lesion or Malignancy (NILM) cytology, 20.83% atypical squamous cells of undetermined significance (ASC-US), 8.85% Low-Grade Squamous Intraepithelial Lesion (LSIL), 1.65% High-Grade Squamous Intraepithelial Lesion (HSIL), 2.85% ASC-H, 0.09% Atypical Glandular Cells, 0.02% Adenocarcinomas, and 0.02% Squamous Cell Carcinoma (SCC). Our analysis revealed that HPV-9val genotypes were responsible for 52.13% NILM, 59.21% ASC-US, 55.06% LSIL, 90.14% HSIL, 83.50% ASC-H, and 100.00% SCC. Furthermore, multiple Hr-HPV infections (risk ratio [RR] = 1.46; 95% confidence interval [CI] 1.34-1.58), HPV-16/18 (RR = 5.16; 95% CI 4.75-5.93), or HPV-9val genotypes (RR = 5.23; 95% CI 4.68-5.85) were associated with a significant risk of developing > HSIL (p < 0.001). To date, this is the largest study on Hr-HPV genotyping in cervical cancer screening that includes data from a complete cycle of the screening program. Our findings suggest a high prevalence of HPV-9valent genotypes and a significant association with an increased risk of developing > HSIL. This constitutes important data for health authorities, which may help define the future of vaccination and cervical cancer screening strategies.


Assuntos
Células Escamosas Atípicas do Colo do Útero , Carcinoma de Células Escamosas , Infecções por Papillomavirus , Displasia do Colo do Útero , Neoplasias do Colo do Útero , Feminino , Humanos , Pessoa de Meia-Idade , Adulto , Neoplasias do Colo do Útero/diagnóstico , Neoplasias do Colo do Útero/epidemiologia , Neoplasias do Colo do Útero/patologia , Papillomavirus Humano 18 , Papillomavirus Humano , Detecção Precoce de Câncer , Infecções por Papillomavirus/diagnóstico , Infecções por Papillomavirus/epidemiologia , Papillomavirus Humano 16/genética , Genótipo , Portugal/epidemiologia , Papillomaviridae/genética
3.
Pathobiology ; 90(4): 233-240, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36574757

RESUMO

INTRODUCTION: The Paris classification highlights the need to focus on accurately identifying high-grade urothelial carcinoma (HGUC). Herein, we aimed to assess the overall implementation and diagnostic performance of the Paris classification for reporting urinary cytology in a cancer center. METHODS: All urinary cytology reports from July 2018 to December 2019 were collected (n = 1,240). Only voided urine samples were included (n = 1,180). Risk of high-grade malignancy (ROHM) was calculated for each Paris category. The diagnostic performance of urinary cytology was assessed, including sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and accuracy. RESULTS: The distribution of categories was: 0.3% unsatisfactory, 90.5% negative for HGUC, 5.6% atypical urothelial cells (AUC), 1.6% suspicious for HGUC, 1.9% HGUC, and 0.1% other malignancies. No diagnosis of low-grade urothelial neoplasia was given. The ROHM was 21.4% for negative for HGUC, 66.7% for AUC, 91.7% for suspicious for HGUC, and 100% for HGUC. When using suspicious for HGUC as a cutoff, the diagnostic performance of urinary cytology in identifying HGUC histology was 46% sensitivity, 98% specificity, 96% PPV, 68% NPV, and 74% accuracy. CONCLUSION: Specificity of urinary cytology was very high (with only 1 false-positive result), which is important since this will trigger a clinical intervention. The ROHM for each category was in accordance with literature, except for AUC where ROHM was slightly higher (66.7%). This may be explained by the study population characteristics (cancer center; many patients treated with intravesical therapies; lack of clinical annotation for patients referred from outside institutions).


Assuntos
Carcinoma de Células de Transição , Neoplasias da Bexiga Urinária , Neoplasias Urológicas , Humanos , Carcinoma de Células de Transição/diagnóstico , Carcinoma de Células de Transição/patologia , Neoplasias da Bexiga Urinária/diagnóstico , Correlação de Dados , Citologia , Neoplasias Urológicas/diagnóstico , Neoplasias Urológicas/patologia , Neoplasias Urológicas/urina
4.
Int J Cancer ; 149(11): 1916-1925, 2021 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-34460099

RESUMO

Cervical cancer remains a health concern. Effective screening programs are critical to reduce the incidence and mortality. High-risk HPV (hr-HPV) testing as primary screening tool discloses high sensitivity but suboptimal specificity. Adequate triage tests to reduce unnecessary colposcopy referrals and overdiagnosis/overtreatment are crucial. Hence, we aimed to validate a panel of DNA methylation-based markers as triage test for women hr-HPV+ in the population-based Regional Cervical Cancer Screening Program of Northern Portugal. Firstly, CADM1, MAL, FAM19A4 and hsa-miR124-2 promoter methylation levels were assessed by multiplex QMSP in a testing set of 402 FFPE tissue samples (159 normal samples and 243 cervical lesions, including 39 low-grade intraepithelial squamous lesions [LSIL], 59 high-grade intraepithelial squamous lesions [HSIL] and 145 cancerous lesions). Then, preliminary validation was performed in 125 hr-HPV+ cervical scrapes (including 59 normal samples, 30 LSIL, 34 HSIL and 2 cancerous lesions). Higher MALme , FAM19A4me and hsa-miR124-2me methylation levels were disclosed in histological HSIL or worse (HSIL+) in testing set. Individually, markers depicted over 86% specificity for HSIL+ detection. In validation set, all these genes significantly differed between histological HSIL+ and low-grade squamous intraepithelial lesions or less. In combination, these markers reached 74% specificity and 61% sensitivity for identification of histological HSIL+. We concluded that host gene methylation might constitute a useful referral triage tool of hr-HPV+ women enrolled in the Cervical Cancer Screening Program of Northern Portugal.


Assuntos
Metilação de DNA , Detecção Precoce de Câncer/métodos , Neoplasias do Colo do Útero/diagnóstico , Adulto , Idoso , Idoso de 80 Anos ou mais , Biomarcadores Tumorais/genética , Estudos de Viabilidade , Feminino , Humanos , Pessoa de Meia-Idade , Papillomaviridae/isolamento & purificação , Infecções por Papillomavirus/diagnóstico , Infecções por Papillomavirus/genética , Infecções por Papillomavirus/patologia , Portugal , Regiões Promotoras Genéticas , Sensibilidade e Especificidade , Triagem , Neoplasias do Colo do Útero/genética , Neoplasias do Colo do Útero/patologia , Adulto Jovem , Displasia do Colo do Útero/diagnóstico , Displasia do Colo do Útero/epidemiologia , Displasia do Colo do Útero/genética , Displasia do Colo do Útero/patologia
5.
Brain Inj ; 35(3): 275-284, 2021 02 23.
Artigo em Inglês | MEDLINE | ID: mdl-33507820

RESUMO

Objective: The goal is to evaluate longitudinally with diffusion tensor imaging (DTI) the integrity of cerebral white matter in patients with moderate and severe DAI and to correlate the DTI findings with cognitive deficits.Methods: Patients with DAI (n = 20) were scanned at three timepoints (2, 6 and 12 months) after trauma. A healthy control group (n = 20) was evaluated once with the same high-field MRI scanner. The corpus callosum (CC) and the bilateral superior longitudinal fascicles (SLFs) were assessed by deterministic tractography with ExploreDTI. A neuropschychological evaluation was also performed.Results: The CC and both SLFs demonstrated various microstructural abnormalities in between-groups comparisons. All DTI parameters demonstrated changes across time in the body of the CC, while FA (fractional anisotropy) increases were seen on both SLFs. In the splenium of the CC, progressive changes in the mean diffusivity (MD) and axial diffusivity (AD) were also observed. There was an improvement in attention and memory along time. Remarkably, DTI parameters demonstrated several correlations with the cognitive domains.Conclusions: Our findings suggest that microstructural changes in the white matter are dynamic and may be detectable by DTI throughout the first year after trauma. Likewise, patients also demonstrated improvement in some cognitive skills.


Assuntos
Lesões Encefálicas Traumáticas , Lesão Axonal Difusa , Substância Branca , Anisotropia , Encéfalo , Cognição , Lesão Axonal Difusa/diagnóstico por imagem , Imagem de Tensor de Difusão , Humanos , Substância Branca/diagnóstico por imagem
6.
Cytokine ; 136: 155249, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-32829109

RESUMO

The aim of this study was to evaluate the inflammatory (peripheral and lipopolysaccharide (LPS)-stimulated released from whole blood) and metabolic (glucose and insulin) profile of inactive obese men in response to two isoenergetic models of aerobic exercise training (~300  kcal each exercise session). Twenty-two participants (28.7 ± 1.6 years; BMI = 34.4 ± 0.1 kg/m2) were randomized into two groups: I) HIIT: high-intensity interval training (10× 1 bout: 1 min - 100% Maximal Aerobic Velocity) or II) MICT: moderate-intensity continuous training (65% Maximal Aerobic Velocity; kcal equal to HIIT). Both groups trained three times per week for 6-weeks. Fasting blood samples were collected before and 0, 30, and 60 min after exercise during the first and last training sessions for evaluation of: I) MIP-1ɑ, insulin, glucose, visceral and subcutaneous fat depots, oral glucose tolerance test, and homeostatic model assessment of insulin resistance (HOMA-IR) index; II) Peripheral (TNF-α, IL-6, and IL-10) and LPS-stimulated release of TNF-α and IL-10 were analyzed before, 0, and 60 min after sessions. IL-6 concentration remained elevated up to 60-min after the acute exercise session (p < 0.001), and IL-10 concentration was higher after 30 and 60-min (p = 0.001) compared to rest, independent of training period and protocol. AUC of IL-10 presented effect of type of training (p = 0.023) with MICT group showed significantly higher values than the HIIT. The ex-vivo assay showed higher IL-10 secretion in response to LPS immediately (p = 0.003) after both acute MICT and HIIT exercise sessions, independent of training period. Fifteen subjects presented decreased HOMA-IR after 6-weeks and seven presented an increase in this index. When we excluded the two least responsive subjects, it was possible to observe a decrease in HOMA-IR (p = 0.020) after training. Taken together, our results suggest that both HIIT and MICT (with same energy expenditure) promote similar effects on HOMA-IR and led to elevations in IL-10 production in LPS-stimulated whole blood, suggesting that leukocytes had an enhanced ability to secrete anti-inflammatory cytokines after the exercise bout.


Assuntos
Treinamento Intervalado de Alta Intensidade , Interleucina-10/biossíntese , Leucócitos/metabolismo , Lipopolissacarídeos/farmacologia , Obesidade Infantil/metabolismo , Adolescente , Adulto , Humanos , Masculino , Obesidade Infantil/patologia
7.
Molecules ; 25(17)2020 Sep 03.
Artigo em Inglês | MEDLINE | ID: mdl-32899132

RESUMO

In the context of the cancer-inflammation relationship and the use of natural products as potential antitumor and anti-inflammatory agents, the alkaloid-enriched fraction of Boehmeriacaudata (BcAEF) aerial parts was evaluated. In vitro antiproliferative studies with human tumor cell lines showed high activity at low concentrations. Further investigation on NCI-H460 cells showed an irreversible effect on cell proliferation, with cell cycle arrest at G2/M phase and programmed cell death induction. Molecular docking studies of four alkaloids identified in BcAEF with colchicine's binding site on ß-tubulin were performed, suggesting (-)-C (15R)-hydroxycryptopleurine as the main inductor of the observed mitotic death. In vivo studies showed that BcAEF was able to reduce Ehrlich tumor volume progression by 30 to 40%. Checking myeloperoxidase activity, BcAEF reduced neutrophils migration towards the tumor. The in vivo anti-inflammatory activity was evaluated by chemically induced edema models. In croton oil-induced ear edema and carrageenan (CG)-induced paw edema models, BcAEF reduced edema around 70 to 80% together with inhibition of activation and/or migration of neutrophils to the inflammatory area. All together the results presented herein show BcAEF as a potent antitumor agent combining antiproliferative and anti-inflammatory properties, which could be further explored in (pre)clinical studies.


Assuntos
Alcaloides/química , Anti-Inflamatórios/farmacologia , Antineoplásicos/farmacologia , Boehmeria/química , Simulação por Computador , Extratos Vegetais/farmacologia , Animais , Apoptose/efeitos dos fármacos , Caspases/metabolismo , Pontos de Checagem do Ciclo Celular/efeitos dos fármacos , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Sobrevivência Celular/efeitos dos fármacos , Células Clonais , Modelos Animais de Doenças , Orelha/patologia , Edema/patologia , Ativação Enzimática/efeitos dos fármacos , Exocitose , Humanos , Simulação de Acoplamento Molecular , Paclitaxel/farmacologia , Peroxidase/metabolismo , Fosfatidilserinas/metabolismo , Padrões de Referência , Testes de Toxicidade Aguda
8.
Rev Port Cir Cardiotorac Vasc ; 27(2): 105-109, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32707617

RESUMO

OBJECTIVES: Primary spontaneous pneumothorax (PSP) is defined as a pneumothorax without obvious underlying lung disease. Definitive treatment should be offered to patients with recurrent or persistent PSP. The aim of this study was to compare the effectiveness of medical pleurodesis (MP) with video assisted thoracic surgery (VATS) on definitive treatment of PSP. METHODS: 10 years' retrospective study of PSP patients that underwent VATS or MP. Baseline characteristics, perioperative and follow-up data were compared. RESULTS: A total of 133 patients were included (MP=54; VATS=79). Baseline characteristics were similar between groups, with a male predominance (MP 83.6 vs VATS 85.5%) with a mean age of 24.78 and 25.81 years old, respectively. Post interventional length of hospital stay was similar (MP 4.94 vs VATS 4.47 days, p=0.20), but chest tube duration was longer in the VATS group (MP 2.94 vs VATS 3.56 days, p=0.03). The overall complications rate was low with no statistically significant difference between groups (MP 5/54 vs VATS 7/79, p=1.00). Regarding the follow-up, MP had a significant higher PSP recurrence rate (MP 11.1% vs VATS 1.3%, p=0.042), most occurring over the first two years. CONCLUSION: Despite both MP and VATS are safe methods with short hospital stay and few complications associated, the results of this study show that VATS had a significantly lower rate of recurrences. Overall, VATS should be offered as the first line treatment to patients with PSP.


Assuntos
Pneumotórax , Adulto , Feminino , Humanos , Masculino , Pleurodese , Recidiva , Estudos Retrospectivos , Cirurgia Torácica Vídeoassistida , Resultado do Tratamento , Adulto Jovem
9.
J Strength Cond Res ; 32(12): 3564-3573, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-27893473

RESUMO

Rossi, FE, Diniz, TA, Fortaleza, ACS, Neves, LM, Picolo, MR, Monteiro, PA, Buonani, C, Lira, FS, and Freitas, IF Jr. Concurrent training promoted sustained anti-atherogenic benefits in the fasting plasma triacylglycerolemia of postmenopausal women at 1-year follow-up. J Strength Cond Res 32(12): 3573-3582, 2018-The aim of this study was to compare the effects of aerobic and concurrent training (aerobic plus strength training) on the lipid profiles of normotriacylglycerolemic and hypertriacylglycerolemic postmenopausal women and to verify whether the benefits of aerobic and concurrent training were sustained after 1 year. Total cholesterol, high-density lipoprotein cholesterol (HDL-c), low-density lipoprotein cholesterol, triacylglycerol (TAG), and glucose were assessed in 46 normotriacylglycerolemic (TAG < 150 mg·dl) postmenopausal women divided into 3 groups: aerobic training, concurrent training (CT), and a control group. For CT group, hypertriacylglycerolemic postmenopausal women were recruited (TAG ≥ 150 mg·dl, n = 14). Total daily caloric consumption and free-living physical activity were evaluated by dietary questionnaires and accelerometer, respectively, and fat mass by DXA. In 16 weeks, CT was effective in increasing HDL-c (normotriacylglycerolemic: pre = 57.1 ± 17.3 mg·dl × post = 64.3 ± 16.1 mg·dl p = 0.020 and hypertriacylglycerolemic: pre = 44.7 ± 9.6 mg·dl × post = 50.3 ± 15.3 mg·dl; p = 0.012) and reducing the atherogenic index in normotriacylglycerolemic (pre = 3.6 ± 0.9 mg·dl × post = 3.0 ± 0.6 mg·dl; p = 0.003) and hypertriacylglycerolemic (pre = 5.2 ± 1.1 mg·dl × post = 4.7 ± 1.2 mg·dl; p = 0.018) postmenopausal women. In addition, the effects were sustained at the 1-year follow-up only among the hypertriacylglycerolemic postmenopausal women. The anti-atherogenic status in normotriacylglycerolemic and hypertriacylglycerolemic postmenopausal women was changed by CT but without significant differences between groups. Furthermore, these benefits are sustained at the 1-year follow-up among the hypertriacylglycerolemic subjects.


Assuntos
Exercício Físico , Pós-Menopausa , Treinamento Resistido , Triglicerídeos/sangue , Idoso , Glicemia , HDL-Colesterol/sangue , LDL-Colesterol/sangue , Jejum , Feminino , Seguimentos , Humanos , Pessoa de Meia-Idade
10.
Br J Cancer ; 116(5): 634-639, 2017 Feb 28.
Artigo em Inglês | MEDLINE | ID: mdl-28081549

RESUMO

BACKGROUND: Urothelial carcinoma (UC) is the most common cancer affecting the urinary system, worldwide. Lack of accurate early detection tools entails delayed diagnosis, precluding more efficient and timely treatment. In a previous study, we found that miR-129-2 and miR-663a were differentially methylated in UC compared with other genitourinary tract malignancies. Here, we evaluated the diagnostic performance of those microRNAs in urine. METHODS: Promoter methylation levels of miR-129-2 and miR-663a were assessed, using real-time quantitative methylation-specific PCR, in UC tissue samples (using normal urothelium as control) and, subsequently, in urine samples from UC and other genitourinary malignancies. Diagnostic and prognostic performances were evaluated by receiver operator characteristics curve and survival analyses, respectively. RESULTS: Promoter methylation levels of both microRNAs were significantly higher in UC tissue samples compared with normal urothelium. In urine, the assay was able to distinguish UC from other genitourinary tract carcinomas with 87.7% sensitivity and 84% specificity, resulting in 85.85% overall accuracy. CONCLUSIONS: This panel of miRNAs promoter methylation accurately detects UC in urine, comparing well with other promising epigenetic-based biomarkers. This may constitute the basis for a non-invasive assay to detect UC.


Assuntos
Metilação de DNA , MicroRNAs/urina , Neoplasias Urológicas/diagnóstico , Urotélio/patologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Biomarcadores Tumorais/urina , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Regiões Promotoras Genéticas , Curva ROC , Sensibilidade e Especificidade , Análise de Sobrevida , Neoplasias Urológicas/genética
11.
Cytokine ; 91: 104-109, 2017 03.
Artigo em Inglês | MEDLINE | ID: mdl-28043028

RESUMO

The purposes of this study were to determine: (i) the extent of an acute session of high-intensity intermittent exercise (HIIE) followed by a concurrent strength session (Conc) on the increase of systemic inflammatory cytokines and chemokines, and (ii) whether eight weeks of high intensity interval training plus concurrent strength training alters the acute inflammatory response and immune status. Ten recreationally active males (aged 26.9±4.3years) performed two experimental exercise sessions interspersed by eight weeks of HIIT plus concurrent strength training. The experimental exercise session was composed of a 5-km run on a treadmill (1:1 at 100% of maximal aerobic speed (MAS)), and after 10min of passive recovery, back squat exercises were performed (80% 1RM, four sets until exhaustion). Serum samples were collected after fasting, pre-HIIE, post-HIIE, Pre-Conc, Post-Conc, and 30 and 60min post-exercise session. The comparison between both concurrent exercise sessions was performed using repeated measure ANOVA, with the Bonferroni Post-hoc when necessary. Interleukin-6 (IL-6) presented a moment effect (F=6.72; p<0.05), with Post-Conc significantly higher than pre-HIIE, Post-HIIE, and 60min, only a tendency was found between pre-HIIE and post-HIIE (difference=-5.99; p=0.09). MCP-1 and IL-1ra did not present effects for condition, moment, or interaction. Interleukin-10 (IL-10) presented both moment and interaction effects (F=5.31 and 2.50; p=0.005 and 0.036). Pre-Conc and Post-Conc were significantly higher than Pre-HIIE. The interaction between before and after eight weeks of concurrent training probably occurred at Post-Conc (11.42±3.09pgmL-1 and 8.88±1.29pgmL-1). In addition, maintenance of immune function was observed. Therefore, HIIE and concurrent strength exercise lead to an increase in cytokines response, but eight weeks of training program promoted anti-inflammatory response after an acute session of concurrent exercise.


Assuntos
Citocinas/sangue , Exercício Físico/fisiologia , Mediadores da Inflamação/sangue , Aptidão Física/fisiologia , Adolescente , Adulto , Humanos , Inflamação/sangue , Masculino
12.
J Strength Cond Res ; 30(7): 1960-7, 2016 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-26626027

RESUMO

Inoue, DS, Panissa, VLG, Monteiro, PA, Gerosa-Neto, J, Rossi, FE, Antunes, BMM, Franchini, E, Cholewa, JM, Gobbo, LA, and Lira, FS. Immunometabolic responses to concurrent training: the effects of exercise order in recreational weightlifters. J Strength Cond Res 30(7): 1960-1967, 2016-The relationship between immunometabolic response and performance is not well understood. This study evaluated the influence of concurrent strength and high-intensity aerobic sequence of exercise order between sessions on strength performance, metabolic, and inflammatory response. Eleven recreational weightlifters underwent the following 2 randomized sessions: (a) strength-aerobic exercise order (SA) and (b) aerobic-strength exercise order (AS). Blood samples were collected before (Pre) and immediately after the first exercise (Post-1) and the second exercise (Post-2) of each session. The SA condition presented a higher number of repetitions (SA: 54 ± 15 vs. AS: 43 ± 12) and total volume (SA: 7,265 ± 2,323 vs. AS: 5,794 ± 1846 kg) than the AS condition (both p = 0.001). Glucose was higher in Pre when compared with post-1 in both orders (p ≤ 0.05); changes in lactate were time-dependent in the different orders (p ≤ 0.05); however, AS post-2 lactate was lower when compared with SA post-2 (p ≤ 0.05). Interleukin-6 levels showed time-dependent changes for both exercise orders (p ≤ 0.05). Tumor necrosis factor alpha (TNF-α) level was increased only in AS post-1 (AS: pre = 21.91 ± 35.47, post-1 = 26.99 ± 47.69 pg·ml vs. SA: pre = 25.74 ± 43.64, post-1 = 29.74 ± 46.05 pg·ml, p ≤ 0.05). These results suggest that concurrent training order exhibits different immunometabolic responses and, at least in part, can be associated with the acute decline in strength performance induced by concurrent exercise. Our results point to a possible role of TNF-α (post-1 AS condition) as a trigger to restore the energy demand by providing substrates to help maintain contractile activity in skeletal muscle.


Assuntos
Exercício Físico/fisiologia , Levantamento de Peso/fisiologia , Adolescente , Adulto , Glicemia/metabolismo , Humanos , Interleucina-6/sangue , Ácido Láctico/sangue , Masculino , Força Muscular , Músculo Esquelético/fisiologia , Distribuição Aleatória , Recreação , Treinamento Resistido , Fator de Necrose Tumoral alfa/sangue , Adulto Jovem
13.
Lipids Health Dis ; 14: 153, 2015 Nov 26.
Artigo em Inglês | MEDLINE | ID: mdl-26611872

RESUMO

BACKGROUND: The prevalence of obesity in pediatric population is increasing at an accelerated rate in many countries, and has become a major public health concern. Physical activity, particularly exercise training, remains to be a cornerstone of pediatric obesity interventions. The purpose of our current randomized intervention trial was to compare the effects of two types of training matched for training volume, aerobic and concurrent, on body composition and metabolic profile in obese adolescents. Thus the aim of the study was compare the effects of two types of training matched for training volume, aerobic and concurrent, on body composition and metabolic profile in obese adolescents. METHODS: 32 obese adolescents participated in two randomized training groups, concurrent or aerobic, for 20 weeks (50 mins x 3 per week, supervised), and were compared to a 16-subject control group. We measured the percentage body fat (%BF, primary outcome), fat-free mass, percentage of android fat by dual energy x-ray absorptiometry, and others metabolic profiles at baseline and after interventions, and compared them between groups using the Intent-to-treat design. RESULTS: In 20 weeks, both exercise training groups significantly reduced %BF by 2.9-3.6% as compare to no change in the control group (p = 0.042). There were also positive changes in lipid levels in exercise groups. No noticeable changes were found between aerobic and concurrent training groups. CONCLUSIONS: The benefits of exercise in reducing body fat and metabolic risk profiles can be achieved by performing either type of training in obese adolescents. REGISTRATION NUMBER: RBR-4HN597.


Assuntos
Adiposidade , Terapia por Exercício , Obesidade Infantil/terapia , Adolescente , Criança , Exercício Físico , Fígado Gorduroso/metabolismo , Fígado Gorduroso/patologia , Fígado Gorduroso/terapia , Feminino , Humanos , Gordura Intra-Abdominal/patologia , Lipoproteínas VLDL/sangue , Masculino , Obesidade Infantil/metabolismo , Obesidade Infantil/patologia , Treinamento Resistido , Resultado do Tratamento
14.
BMC Pediatr ; 14: 25, 2014 Jan 29.
Artigo em Inglês | MEDLINE | ID: mdl-24476029

RESUMO

BACKGROUND: Nonalcoholic fatty liver disease (NAFLD) is a disorder associated with excessive fat accumulation, mainly in the intra-abdominal region. A simple technique to estimate abdominal fat in this region could be useful to assess the presence of NAFLD, in obese subjects who are more vulnerable to this disease. The aim of this cross-sectional study was to verify the reliability of waist circumference and body composition variables to identify the occurrence of NAFLD in obese children and adolescents. METHODS: Sample was composed of 145 subjects, aged 11 to 17 years. Assessments of waist circumference (WC), trunk fat mass (TFM) and fat mass (FM) by dual-energy X-ray absorptiometry (DXA) and ultrasound for diagnosis of NAFLD and intra-abdominal adipose tissue (IAAT) were used. Correlation between variables was made by Spearman's coefficients; ROC curve parameters (sensitivity, specificity, area under curve) were used to assess the reliability of body composition variables to assess the presence of NAFLD. Statistical significance was set at 5%. RESULTS: Significant correlations were observed between NAFLD and WC (p = 0.001), TFM (p = 0.002) and IAAT (p = 0.001). The higher values of area under the ROC curve were for WC (AUC = 0.720), TFM (AUC = 0.661) and IAAT (AUC = 0.741). CONCLUSIONS: Our findings indicated that TFM, IAAT and WC present high potential to identify NAFLD in obese children and adolescents.


Assuntos
Composição Corporal , Fígado Gorduroso/diagnóstico por imagem , Fígado Gorduroso/etiologia , Obesidade/complicações , Circunferência da Cintura , Adolescente , Criança , Estudos Transversais , Feminino , Humanos , Masculino , Hepatopatia Gordurosa não Alcoólica , Valor Preditivo dos Testes , Reprodutibilidade dos Testes , Ultrassonografia
15.
JBRA Assist Reprod ; 2024 May 07.
Artigo em Inglês | MEDLINE | ID: mdl-38712833

RESUMO

OBJECTIVE: This systematic literature review aims to assess the impact of COVID-19 on male fertility. DATA SOURCES: The study draws upon data extracted from PubMed, SciELO, and LILACS databases. STUDY SELECTION: The review incorporates cross-sectional studies, cohort studies, and clinical trials, encompassing investigations related to the subject matter. The studies included were published between June 2020 and March 2023, and encompassed content in English, Portuguese, and Spanish. Exclusion criteria encompassed review articles, case reports, abstracts, studies involving animal models, duplicate articles, and letters to the editor. DATA COLLECTION: Data extracted included the author's name and publication year, the number of patients studied, patient age, the presence of COVID-19 in semen, observed hormonal changes, and alterations in seminal quality. CONCLUSIONS: While hormonal changes and a decline in seminal quality were observed in COVID-19 patients, the virus itself was not detected in semen in the analyzed articles, which contradicts certain findings in the existing literature. It is essential to note that methodologies in the studies were diverse, and, due to the novelty of this infection, it is premature to definitively ascertain its long-term effects on male fertility or whether fertility can recover after a period of convalescence. This underscores the necessity for further research, utilizing more robust methodologies such as cohort studies.

16.
JBRA Assist Reprod ; 28(2): 331-340, 2024 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-38546117

RESUMO

OBJECTIVE: To verify, based on a systematic literature review, the effects of the main analgesics on male fertility. DATA SOURCES: The studies were analyzed from the PubMed, SciELO and LILACS databases. STUDY SELECTION: The articles selected for the present review included: cohort studies; cross-sectional studies, clinical trials; complete studies; studies with animal models that addressed the proposed theme and that were published within the stipulated period from March 1, 2013, to March 31, 2023, in English, Portuguese and Spanish. These would later have to go through inclusion stages such as framing the type of study and exclusion criteria. DATA COLLECTION: Author's name, year of publication, study population, number of patients, analgesic, administration time, dose, and effect. CONCLUSIONS: There are in vitro and in vivo studies that link paracetamol and ibuprofen to endocrine and seminal changes that are harmful to male fertility. However, more clinical research is needed to determine the doses and timing of administration that affect fertility. The effects of aspirin on male fertility are still unclear due to the lack of studies and consistent methodologies. There is not enough research on dipyrone and its relationship with male fertility, requiring more studies in this area.


Assuntos
Analgésicos , Fertilidade , Humanos , Masculino , Analgésicos/efeitos adversos , Analgésicos/uso terapêutico , Fertilidade/efeitos dos fármacos , Infertilidade Masculina/induzido quimicamente , Infertilidade Masculina/tratamento farmacológico , Ibuprofeno/efeitos adversos , Acetaminofen/efeitos adversos , Acetaminofen/uso terapêutico , Animais , Dipirona/efeitos adversos , Aspirina/efeitos adversos , Aspirina/administração & dosagem , Aspirina/uso terapêutico
17.
J Infect Public Health ; 17(6): 1057-1064, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38705058

RESUMO

BACKGROUND: Cervical cancer screening remains an essential preventive tool worldwide. First line high-risk Human Papillomavirus (HrHPV) genotyping became gold standard for cervical cancer screening, and has been adopted by several countries, including Portugal. Herein, we aimed to assess the early outcomes of the regional Cervical Cancer Screening Program of Northern Portugal. METHODS: The analysis of a representative set of cases evaluated during a one-month period (January 2020), with adequate follow-up was performed. Descriptive analysis was performed. RESULTS: Overall, 7278 samples were received, of which 15.2% were HrHPV positive, most of these disclosing a negative result in subsequent liquid-based cytology. Nearly half of the HrHPV-positive women were referred to colposcopy. Within this group, HPV16/18+ cases depicted the higher frequency of high-grade squamous intraepithelial lesion (HSIL) or worse, compared with abnormal cytology or persistent HrHPV infection. Among women with non-HPV16/18 HrHPV infection and negative cytology, which are eligible for repeat sampling in one year, 65% were re-tested. Importantly, nearly half of these cleared HrHPV infection. Furthermore, referral to colposcopy due to HPV16/18 infection and/or abnormal cytology results were associated with > 40% risk for HSIL or worse lesion. CONCLUSIONS: Our study confirmed the reliability and effectiveness of first line HrHPV genotyping in the Cervical Cancer Screening Program of Northern Portugal. Nonetheless, it also raised concerns about excessive referral to colposcopy, with the inherent human and financial costs. Thus, further improvement and optimization are key to ensure the sustainability of the program.


Assuntos
Colposcopia , Detecção Precoce de Câncer , Infecções por Papillomavirus , Neoplasias do Colo do Útero , Humanos , Feminino , Portugal , Neoplasias do Colo do Útero/diagnóstico , Neoplasias do Colo do Útero/virologia , Detecção Precoce de Câncer/métodos , Infecções por Papillomavirus/diagnóstico , Infecções por Papillomavirus/virologia , Adulto , Pessoa de Meia-Idade , Genótipo , Papillomavirus Humano 16/genética , Papillomavirus Humano 16/isolamento & purificação , Papillomavirus Humano 18/genética , Papillomavirus Humano 18/isolamento & purificação , Idoso , Programas de Rastreamento/métodos
18.
Biochem Biophys Rep ; 39: 101755, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38974022

RESUMO

Ovarian cancer (OC) patients develop ascites, an accumulation of ascitic fluid in the peritoneal cavity anda sign of tumour dissemination within the peritoneal cavity. This body fluid is under-researched, mainly regarding the ascites formed during tumour progression that have no diagnostic value and, therefore, are discarded. We performed a discovery proteomics study to identify new biomarkers in the ascites supernatant of OC patients. In this preliminary study, we analyzed a small amount of OC ascites to highlight the importance of not discarding such biological material during treatment, which could be valuable for OC management. Our findings reveal that OC malignant ascitic fluid (MAF) displays a proliferative environment that promotes the growth of OC cells that shift the metabolic pathway using alternative sources of nutrients, such as the cholesterol pathway. Also, OC ascites drained from patients during treatment showed an immunosuppressive environment, with up-regulation of proteins from the signaling pathways of IL-4 and IL-13 and down-regulation from the MHC-II. This preliminary study pinpointed a new protein (Transmembrane Protein 132A) in the OC context that deserves to be better explored in a more extensive cohort of patients' samples. The proteomic profile of MAF from OC patients provides a unique insight into the metabolic kinetics of cancer cells during disease progression, and this information can be used to develop more effective treatment strategies.

19.
Eur J Clin Nutr ; 78(7): 647-650, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38485808

RESUMO

To investigate the effects of 8-weeks of full versus split body resistance training (RT) on appetite and energy intake in non-obese untrained men. The participants were pair-matched based on their initial fat mass and then randomly allocated into one of two treatment groups: Full body (FB, n = 20), in which all muscle groups were trained in every session, or Split body (SB, n = 15), in which upper and lower muscle groups were trained alternated per session; both groups trained in non-consecutive days, three times per week with total number of sets performed equated between groups. Energy intake, body composition, and strength performance were evaluated at pre-training, and after 8-weeks of RT, as well as self-reported hunger, fullness, and desire to eat, that were assessed at fasted and feed states pre- and post-intervention. FB and SB resistance training increased fat-free mass (FFM) (p < 0.001); and FB induced greater maximal strength improvement (p = 0.027). At fasted state self-reported hunger increased, and fullness decreased, while in feed state desire to eat something fatty increased in both groups. Carbohydrate intake (p = 0.011) decreased in both groups. In conclusion, FB and SB training increased orexigenic drive (increasing hunger and decreasing fullness), however, total energy intake and fat mass did not change after 8-weeks of RT in non-obese untrained men.Registered under Brazilian Registry of Clinical Trials no. RBR-3wkcvyw.


Assuntos
Apetite , Composição Corporal , Ingestão de Energia , Treinamento Resistido , Humanos , Masculino , Treinamento Resistido/métodos , Ingestão de Energia/fisiologia , Apetite/fisiologia , Adulto , Adulto Jovem , Fome/fisiologia , Força Muscular/fisiologia
20.
J Med Virol ; 85(8): 1409-13, 2013 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-23765777

RESUMO

Infection by high-risk types of human papillomavirus (HPV) is considered necessary but not sufficient for the development of cervical cancer. Previous studies suggested that cytomegalovirus (CMV) and Epstein-barr virus (EBV) could be co-factors of HPV-associated carcinogenesis. The aim of this study was to characterize the prevalence of CMV and EBV and evaluate its association with the development cervical lesions in Portugal. The prevalence of CMV and EBV infections was determined by real-time PCR in 89 cervical samples from women with different histological lesions, who attended the Portuguese Institute of Oncology of Porto. This study revealed an overall prevalence of 4.5% for CMV and 10.1% for EBV. Age-stratified analysis revealed that CMV infection was present in individuals <30 and >60 years old, while EBV infection was present in all age groups. CMV was detected in 9.5% of low-grade lesions and in 22.2% of in situ/invasive carcinomas, while EBV infection was found in all different types of lesions. In addition, data revealed that CMV infection was associated with an increased risk of in situ/invasive carcinoma development (OR=1.28; P=0.035). The study reveals a low prevalence for both viruses; nevertheless, these results are important for knowledge on the shedding of EBV and CMV in cervical samples.


Assuntos
Colo do Útero/virologia , Infecções por Citomegalovirus/epidemiologia , Citomegalovirus/isolamento & purificação , Infecções por Vírus Epstein-Barr/epidemiologia , Herpesvirus Humano 4/isolamento & purificação , Neoplasias do Colo do Útero/virologia , Adulto , Fatores Etários , Idoso , Colo do Útero/patologia , Infecções por Citomegalovirus/virologia , Infecções por Vírus Epstein-Barr/virologia , Feminino , Humanos , Pessoa de Meia-Idade , Portugal/epidemiologia , Prevalência , Adulto Jovem
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