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1.
Clin Oral Investig ; 28(3): 205, 2024 Mar 09.
Artigo em Inglês | MEDLINE | ID: mdl-38459266

RESUMO

OBJECTIVE: To assess the anesthetic efficacy of articaine with the needle-free/Comfort-in™ method compared to the conventional needle method. To assess pain during anesthesia application, onset of anesthesia and patient`s self-reported quality of life-related to oral health after the dental emergency appointment. MATERIALS AND METHODS: This parallel, randomized clinical trial was conducted by a single operator/dentist in the state of Maranhao, northeast of Brazil. Included participants were adult dental patients with one molar (maxillary) or premolar (maxillary or mandibular) tooth diagnosed with symptomatic irreversible pulpitis. The primary outcome was the anesthetic efficacy, measured using a combination of electrical and cold pulp tests (cold + EPT) and the Numerical Rating Scale (NRS). Secondary outcomes were pain during anesthesia application, onset of anesthesia, and patient`s quality-of-life (measured with the OHIP-14). RESULTS: 62 patients were randomized in the anesthesia needle-free group and Comfort-in group (34.26 ± 10.786 × 33.29 ± 8.399 years old, respectively). The group of patients in the Comfort-in group had 71.0% success. Patients from the Comfort-in group reported statistically lower pain during the anesthesia application than patients from the conventional group (2.13 ± 2.172 × 6.03 ± 3.146 NRS scores, respectively) as well as immediately after the anesthetic procedure. Patients self-reported negative impact in quality of life was similar between groups before (p > 0.05) and after (p > 0.05) the dental emergency. CONCLUSIONS: Comfort-in™ had similar efficacy to the conventional needle method. CLINICAL RELEVANCE: This trial showed that it is possible to anesthetize patients with tooth pulpits without using needles to provide comfort mainly to anxious patients.


Assuntos
Anestesia Dentária , Bloqueio Nervoso , Pulpite , Adulto , Humanos , Adulto Jovem , Carticaína , Pulpite/cirurgia , Anestésicos Locais , Qualidade de Vida , Bloqueio Nervoso/métodos , Anestesia Dentária/métodos , Dor , Método Duplo-Cego , Nervo Mandibular , Lidocaína
2.
Gynecol Oncol ; 169: 131-136, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-36580755

RESUMO

OBJECTIVE: To evaluate the relation between mismatch repair (MMR) status and the risk of lymph node metastasis in endometrial cancer, and whether this additional data can be incorporated to current SLN (sentinel lymph node) algorithm. METHODS: We included a series of 332 women that underwent SLN mapping ± systematic lymphadenectomy from January 2013 to December 2021. Protein expressions of MLH1, MSH2, MSH6, PMS2 were examined by immuno-histochemistry and considered MMRd (deficient) when at least one protein was not expressed. RESULTS: MMRd was noted in 20.8% of cases and correlated to grade 3 (p = 0.018) and presence of lymphovascular space invasion (p = 0.032). Moreover, MMRd was an independent risk factor for lymph node metastasis (OR 2.76, 95% CI 1.36-5.62). Notably, 21.7% (15/69) cases with MMRd had lymph node metastasis compared to 9.5% (25/263) of cases with MMRp (proficient) (p = 0.005). The overall and bilateral SLN detection rates were 91.9% and 75.9%, respectively. Of the 80 (24%) cases of non-bilateral SLN detection, 66.2% had low-grade tumors (G1/G2) and myometrial invasion <50%. Considering MMR status an independent prognostic factor for lymph node metastasis, a systematic lymphadenectomy (side specific or bilateral) would forgo in 53.7% (43/80) of cases with non-bilateral detection, representing 13% (43/332) of all endometroid tumors. CONCLUSION: MMR status was independently related to lymph node metastasis in endometrioid EC. Moreover, MMR status may help to select patients that can forgo systematic lymphadenectomy in case of undetected SLN.


Assuntos
Carcinoma Endometrioide , Neoplasias do Endométrio , Linfonodo Sentinela , Humanos , Feminino , Linfonodo Sentinela/patologia , Metástase Linfática/patologia , Biópsia de Linfonodo Sentinela , Reparo de Erro de Pareamento de DNA , Carcinoma Endometrioide/cirurgia , Carcinoma Endometrioide/patologia , Excisão de Linfonodo , Neoplasias do Endométrio/patologia , Algoritmos , Linfonodos/cirurgia , Linfonodos/patologia , Estadiamento de Neoplasias
3.
Int J Gynecol Cancer ; 33(10): 1548-1556, 2023 10 02.
Artigo em Inglês | MEDLINE | ID: mdl-37699707

RESUMO

OBJECTIVES: To evaluate the prevalence of post-operative complications and quality of life (QoL) related to sentinel lymph node (SLN) biopsy vs systematic lymphadenectomy in endometrial cancer. METHODS: A prospective cohort included women with early-stage endometrial carcinoma who underwent lymph node staging, grouped as follows: SLN group (sentinel lymph node only) and SLN+LND group (sentinel lymph node biopsy with addition of systematic lymphadenectomy). The patients had at least 12 months of follow-up, and QoL was assessed by European Organization for Research and Treatment of Cervical Cancer Quality of Life Questionnaire 30 (EORTC-QLQ-C30) and EORTC-QLQ-Cx24. Lymphedema was also assessed by clinical evaluation and perimetry. RESULTS: 152 patients were included: 113 (74.3%) in the SLN group and 39 (25.7%) in the SLN+LND group. Intra-operative surgical complications occurred in 2 (1.3%) cases, and all belonged to SLN+LND group. Patients undergoing SLN+LND had higher overall complication rates than those undergoing SLN alone (33.3% vs 14.2%; p=0.011), even after adjusting for confound factors (OR=3.45, 95% CI 1.40 to 8.47; p=0.007). The SLN+LND group had longer surgical time (p=0.001) and need for admission to the intensive care unit (p=0.001). Moreover, the incidence of lymphocele was found in eight cases in the SLN+LND group (0 vs 20.5%; p<0.001). There were no differences in lymphedema rate after clinical evaluation and perimetry. However, the lymphedema score was highest when lymphedema was reported by clinical examination at 6 months (30.1 vs 7.8; p<0.001) and at 12 months (36.3 vs 6.0; p<0.001). Regarding the overall assessment of QoL, there was no difference between groups at 12 months of follow-up. CONCLUSIONS: There was a higher overall rate of complications for the group undergoing systematic lymphadenectomy, as well as higher rates of lymphocele and lymphedema according to the symptom score. No difference was found in overall QoL between SLN and SLN+LND groups.


Assuntos
Neoplasias do Endométrio , Linfedema , Linfocele , Humanos , Feminino , Qualidade de Vida , Estudos Prospectivos , Biópsia de Linfonodo Sentinela/efeitos adversos , Linfonodos/cirurgia , Linfonodos/patologia , Excisão de Linfonodo/efeitos adversos , Neoplasias do Endométrio/patologia , Prevalência , Linfedema/epidemiologia , Linfedema/etiologia , Linfedema/patologia , Estadiamento de Neoplasias , Estudos Retrospectivos
4.
Ann Surg Oncol ; 29(2): 1151-1160, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-34545531

RESUMO

PURPOSE: To analyze the survival outcomes of patients in a Brazilian cohort who underwent minimally invasive surgery (MIS) compared with open surgery for early stage cervical cancer. METHODS: A multicenter database was constructed, registering 1280 cervical cancer patients who had undergone radical hysterectomy from 2000 to 2019. For the final analysis, we included cases with a tumor ≤ 4 cm (stages Ia2 to Ib2, FIGO 2018) that underwent surgery from January 2007 to December 2017. Propensity score matching was also performed. RESULTS: A total of 776 cases were ultimately analyzed, 526 of which were included in the propensity score matching analysis (open, n = 263; MIS, n = 263). There were 52 recurrences (9.9%), 28 (10.6%) with MIS and 24 (9.1%) with open surgery (p = 0.55); and 34 deaths were recorded, 13 (4.9%) and 21 (8.0%), respectively (p = 0.15). We noted a 3-year disease-free survival (DFS) rate of 88.2% and 90.3% for those who received MIS and open surgery, respectively (HR 1.32; 95% CI: 0.76-2.29; p = 0.31) and a 5-year overall survival (OS) rate of 91.8% and 91.1%, respectively (HR 0.80; 95% CI: 0.40-1.61; p = 0.53). There was no difference in 3-year DFS rates between open surgery and MIS for tumors ≤ 2 cm (95.7% vs. 90.8%; p = 0.16) or > 2 cm (83.9% vs. 85.4%; p = 0.77). Also, the 5-year OS between open surgery and MIS did not differ for tumors ≤ 2 cm (93.1% vs. 93.6%; p = 0.82) or > 2 cm (88.9% vs. 89.8%; p = 0.35). CONCLUSIONS: Survival outcomes were similar between minimally invasive and open radical hysterectomy in this large retrospective multicenter cohort.


Assuntos
Laparoscopia , Neoplasias do Colo do Útero , Intervalo Livre de Doença , Feminino , Humanos , Histerectomia , Procedimentos Cirúrgicos Minimamente Invasivos , Estadiamento de Neoplasias , Estudos Retrospectivos , Neoplasias do Colo do Útero/patologia , Neoplasias do Colo do Útero/cirurgia
5.
Med Mycol ; 60(5)2022 May 05.
Artigo em Inglês | MEDLINE | ID: mdl-35482711

RESUMO

Vulvovaginal candidiasis (VVC) has been identified as a global issue of concern due to its clinical, social and economic implications. The emerging relevance of VVC makes it crucial to increase the knowledge on its epidemiological and etiological features in order to improve its prevention and treatment. Thus, this study aimed to reveal the incidence, microbiology, antifungal pattern and risk factors of VVC in Portugal. For that, high vaginal samples were collected from 470 symptomatic and asymptomatic participants; Candida spp. were identified with molecular techniques and their antifungal susceptibility was analyzed with E-tests. The results revealed an incidence of VVC among women with vulvovaginitis of 74.4%. Furthermore, 63.7% of asymptomatic women were colonized with Candida spp. Importantly, women with history of recurrent vaginal infections, those who use over-the-counter antifungals, oral contraceptive pills and non-cotton underwear were found to be at significantly higher risk of developing VVC. Candida albicans was the most common species (59%), followed by Candida glabrata (27%), in a total of eight distinct species, with similar distribution among colonized and infected participants. Of note, various isolates, especially of the most common species, showed low susceptibility towards fluconazole. In contrast, only few isolates showed low susceptibility towards caspofungin. Overall, this study suggests that the identification of species causing VVC and their antifungal susceptibility are urgently needed in clinical practice in order to improve the decision for the most adequate treatment. It also suggests that avoiding certain risk behaviors may prevent the development of VVC. LAY SUMMARY: Vaginal candidiasis (VVC) is a relevant infection worldwide. In this study, we identified several risk behaviors that may promote VVC and concluded that vaginal microbiologic analyses are urgently required in clinical practice in order to improve the prevention and treatment of this disease.


Assuntos
Candidíase Vulvovaginal , Animais , Antifúngicos/farmacologia , Antifúngicos/uso terapêutico , Candida , Candida albicans , Candidíase Vulvovaginal/microbiologia , Candidíase Vulvovaginal/veterinária , Feminino , Humanos , Testes de Sensibilidade Microbiana/veterinária , Portugal/epidemiologia , Fatores de Risco
6.
Int J Gynecol Cancer ; 32(5): 676-679, 2022 05 03.
Artigo em Inglês | MEDLINE | ID: mdl-35236752

RESUMO

BACKGROUND: Growing evidence suggest that sentinel lymph node (SLN) biopsy in endometrial cancer accurately detects lymph node metastasis. However, prospective randomized trials addressing the oncological outcomes of SLN biopsy in endometrial cancer without lymphadenectomy are lacking. PRIMARY OBJECTIVES: The present study aims to confirm that SLN biopsy without systematic node dissection does not negatively impact oncological outcomes. STUDY HYPOTHESIS: We hypothesized that there is no survival benefit in adding systematic lymphadenectomy to sentinel node mapping for endometrial cancer staging. Additionally, we aim to evaluate morbidity and impact in quality of life (QoL) after forgoing systematic lymphadenectomy. TRIAL DESIGN: This is a collaborative, multicenter, open-label, non-inferiority, randomized trial. After total hysterectomy, bilateral salpingo-oophorectomy and SLN biopsy, patients will be randomized (1:1) into: (a) no further lymph node dissection or (b) systematic pelvic and para-aortic lymphadenectomy. MAJOR INCLUSION AND EXCLUSION CRITERIA: Inclusion criteria are patients with high-grade histologies (endometrioid G3, serous, clear cell, and carcinosarcoma), endometrioid G1 or G2 with imaging concerning for myometrial invasion of ≥50% or cervical invasion, clinically suitable to undergo systematic lymphadenectomy. PRIMARY ENDPOINTS: The primary objective is to compare 3-year disease-free survival and the secondary objectives are 5-year overall survival, morbidity, incidence of lower limb lymphedema, and QoL after SLN mapping ± systematic lymphadenectomy in high-intermediate and high-risk endometrial cancer. SAMPLE SIZE: 178 participants will be randomized in this study with an estimated date for completing accrual of December 2024 and presenting results in 2027. TRIAL REGISTRATION NUMBER: NCT03366051.


Assuntos
Neoplasias do Endométrio , Linfonodo Sentinela , Neoplasias do Endométrio/cirurgia , Feminino , Humanos , Excisão de Linfonodo , Estudos Prospectivos , Qualidade de Vida , Linfonodo Sentinela/cirurgia
7.
Biochem J ; 478(4): 961-974, 2021 02 26.
Artigo em Inglês | MEDLINE | ID: mdl-33555340

RESUMO

Candida glabrata is a clinically relevant human pathogen with the ability to form high recalcitrant biofilms that contribute to the establishment and persistence of infection. A defining trait of biofilms is the auto-produced matrix, which is suggested to have structural, virulent and protective roles. Thus, elucidation of matrix components, their function and modulation by the host environment is crucial to disclose their role in C. glabrata pathogenesis. As a major step toward this end, this study aimed to reveal, for the first time, the matrix proteome of C. glabrata biofilms, to characterize it with bioinformatic tools and to study its modulation by the environmental pH (acidic and neutral). The results showed the presence of several pH-specific matrix proteins (51 acidic- and 206 neutral-specific) and also proteins commonly found at both pH conditions (236). Of note, several proteins related to mannan and ß-glucan metabolism, which have a potential role in the delivery/organization of carbohydrates in the matrix, were found in both pH conditions but in much higher quantity under the neutral environment. Additionally, several virulence-related proteins, including epithelial adhesins, yapsins and moonlighting enzymes, were found among matrix proteins. Importantly, several proteins seem to have a non-canonical secretion pathway and Pdr1 was found to be a potential regulator of matrix proteome. Overall, this study indicates a relevant impact of environmental cues in the matrix proteome and provides a unique resource for further functional investigation of matrix proteins, contributing to the identification of potential targets for the development of new therapies against C. glabrata biofilms.


Assuntos
Biofilmes , Candida glabrata/metabolismo , Proteínas Fúngicas/isolamento & purificação , Concentração de Íons de Hidrogênio , Proteoma , Candida glabrata/efeitos dos fármacos , Candida glabrata/genética , Candida glabrata/patogenicidade , Metabolismo dos Carboidratos , Adesão Celular , Biologia Computacional , Meios de Cultura/farmacologia , Regulação Fúngica da Expressão Gênica , Mapeamento de Interação de Proteínas , Fatores de Transcrição/metabolismo , Virulência
8.
Ann Surg Oncol ; 28(11): 6673-6681, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-33566245

RESUMO

OBJECTIVE: The aim of this study was to evaluate predictive factors for the presence of residual disease after conization followed by definitive surgery in cervical cancer, and suggest a margin distance threshold that could predict residual disease. METHODS: We retrospectively analyzed a series of 42 patients with early-stage cervical cancer who underwent primary conization before definitive surgical treatment from March 2009 to May 2020. All conization specimens were reviewed for endocervical, ectocervical, and radial margins. Cases with residual disease in magnetic resonance imaging before definitive surgery were excluded. RESULTS: Thirty-three (78.6%) patients underwent hysterectomies and 9 (21.4%) trachelectomies ± lymph node staging. Twelve (28.6%) cases were stage IA1, 5 (11.8%) cases were stage IA2, 13 (31%) cases were stage IB1, 11 (26.2%) cases were stage IB2, and 1 (2.4%) case was stage IIIC1 [International Federation of Gynecology and Obstetrics (FIGO) 2019]. We found residual disease in 17 (40.4%) surgical specimens. Of the 20 patients with negative margins, there were still 3 (15%) cases with residual disease. Conversely, residual disease was identified in 14 (63.6%) of the 22 patients with positive cone margins (p = 0.001). Tumor size [odds ratio (OR) 1.71, 95% confidence interval (CI) 1.02-1.33] and positive endocervical margin status (OR 33.6, 95% CI 3.85-293.3) were related to a higher risk of residual disease in multivariate analysis. Notably, all patients with tumors larger than 2 cm had residual disease, in contrast to 29.4% in lesions up to 2 cm (p = 0.002). CONCLUSION: We found that tumor size and positive margin were predictive factors for residual disease. We could not suggest a reliable minimum margin distance threshold that could predict residual disease.


Assuntos
Conização , Neoplasias do Colo do Útero , Feminino , Humanos , Histerectomia , Estadiamento de Neoplasias , Neoplasia Residual/patologia , Gravidez , Estudos Retrospectivos , Neoplasias do Colo do Útero/patologia , Neoplasias do Colo do Útero/cirurgia
9.
Ann Surg Oncol ; 28(6): 3293-3299, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-33108597

RESUMO

OBJECTIVE: Due to the growing evidence of sentinel lymph node (SLN) mapping in endometrial cancer (EC), our aim was to evaluate the impact of SLN mapping and other clinical-pathological variables in the risk of developing lymphocele. METHODS: We retrospectively analyzed a series of patients with ECs who underwent lymph node staging with SLN mapping with or without systematic pelvic ± para-aortic lymphadenectomy from November 2012 to January 2020. The lymphocele diagnosis was performed by computed tomography or magnetic resonance imaging. RESULTS: Of 348 patients included, 178 underwent SLN mapping only and 170 underwent SLN mapping and systematic lymphadenectomy (46.5% pelvic only; 53.5% pelvic and para-aortic). Seventy-three (21%) patients had open surgery and 275 (79%) had a minimally invasive approach. After a median follow-up of 25.4 months, the overall prevalence of lymphocele was 8.6% (n = 30), with 29 cases in a pelvic location. Lymphocele was found in 3.4% (n = 6/178) of patients submitted to SLN mapping only, compared with 14.1% (n = 24/170) among those who underwent SLN with lymphadenectomy (p = 0.009). Among those patients with lymphocele, seven (23.3%) were symptomatic and five (16.6%) required drainage. All symptomatic cases occurred in lymphoceles larger than 4 cm (p = 0.001). Neither resected lymph node count nor the type of systematic lymphadenectomy were related to the presence of lymphocele. Systematic lymphadenectomy was the only factor that emerged as a risk factor for the presence of lymphocele in multivariate analysis (odds ratio 3.68, 95% confidence interval 1.39-9.79; p = 0.009). CONCLUSIONS: Our data suggest that SLN mapping independently decreases the risk of lymphocele formation compared with full lymphadenectomy in EC.


Assuntos
Neoplasias do Endométrio , Linfocele , Linfonodo Sentinela , Neoplasias do Endométrio/diagnóstico por imagem , Neoplasias do Endométrio/patologia , Neoplasias do Endométrio/cirurgia , Feminino , Humanos , Excisão de Linfonodo , Metástase Linfática , Linfocele/diagnóstico por imagem , Linfocele/epidemiologia , Linfocele/etiologia , Estadiamento de Neoplasias , Estudos Retrospectivos , Linfonodo Sentinela/diagnóstico por imagem , Linfonodo Sentinela/patologia , Linfonodo Sentinela/cirurgia , Biópsia de Linfonodo Sentinela
10.
J Surg Oncol ; 123(4): 1115-1120, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-33524165

RESUMO

OBJECTIVE: To analyze the predictive factors for non-sentinel lymph node (non-SLN) metastasis in early-stage cervical cancer. METHODS: We analyzed a series of 113 patients who underwent sentinel lymph node (SLN) mapping for cervical cancer. The SLNs were examined by immunohistochemistry (IHC) when the hematoxylin-eosin stain was negative. RESULTS: The overall bilateral detection rate was 81.5%, with a median of two SLNs resected. The study ultimately included 92 patients with SLNs that were mapped who had also undergone systematic pelvic lymph node dissection. Thirteen (14.1%) patients had positive SLNs, with a median of one positive SLN. Regarding the size of SLN metastasis, one (1.1%) had isolated tumor cells (ITC), seven (7.6%) had micrometastases, and five (5.4%) had macrometastases. Notably, 46.1% (6/13) had lymph node metastases detected only after IHC. Five (38.5%) cases had positive non-SLNs, with a median count of one positive lymph node. Parametrial invasion was the only risk factor for positive non-SLN (p = .045). Regarding the size of SLN metastasis, non-SLN involvement was present in the only case with ITC (1/1), 42.9% (3/7) of cases with micrometastases, and in 20% (1/5) with macrometastases. CONCLUSIONS: Our data suggest that parametrial invasion correlates with the risk of non-SLN metastasis in cervical cancer.


Assuntos
Linfonodos/patologia , Micrometástase de Neoplasia/patologia , Linfonodo Sentinela/patologia , Neoplasias do Colo do Útero/patologia , Adulto , Idoso , Feminino , Seguimentos , Humanos , Histerectomia/métodos , Excisão de Linfonodo/métodos , Linfonodos/cirurgia , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Estudos Retrospectivos , Linfonodo Sentinela/cirurgia , Biópsia de Linfonodo Sentinela/métodos , Neoplasias do Colo do Útero/cirurgia , Adulto Jovem
11.
J Surg Oncol ; 123(4): 823-833, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-33428790

RESUMO

BACKGROUND: There are limited data on surgical complications for patients that have delayed surgery after severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. We aimed to analyze the surgical outcomes of patients submitted to surgery after recovery from SARS-CoV-2 infection. METHODS: Asymptomatic patients that had surgery delayed after preoperative reverse-transcription polymerase chain reaction (RT-PCR) for SARS-CoV-2 were matched in a 1:2 ratio for age, type of surgery and American Society of Anesthesiologists to patients with negative RT-PCR for SARS-CoV-2. RESULTS: About 1253 patients underwent surgical procedures and were subjected to screening for SARS-CoV-2. Forty-nine cases with a delayed surgery were included in the coronavirus disease (COVID) recovery (COVID-rec) group and were matched to 98 patients included in the COVID negative (COVID-neg) group. Overall, 22 (15%) patients had 30-days postoperative complications, but there was no statistically difference between groups -16.3% for COVID-rec and 14.3% for COVID-neg, respectively (odds ratio [OR] 1.17:95% confidence interval [CI] 0.45-3.0; p = .74). Moreover, we did not find difference regarding grades more than or equal to 3 complication rates - 8.2% for COVID-rec and 6.1% for COVID-neg (OR 1.36:95%CI 0.36-5.0; p = .64). There were no pulmonary complications or SARS-CoV-2 related infection and no deaths within the 30-days after surgery. CONCLUSIONS: Our study suggests that patients with delayed elective surgeries due to asymptomatic preoperative positive SARS-CoV-2 test are not at higher risk of postoperative complications.


Assuntos
Teste de Ácido Nucleico para COVID-19 , COVID-19/diagnóstico , Procedimentos Cirúrgicos Eletivos , Complicações Pós-Operatórias/epidemiologia , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Tempo para o Tratamento , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Infecções Assintomáticas , Estudos de Casos e Controles , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem
12.
Int J Med Microbiol ; 310(3): 151414, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32173268

RESUMO

Vulvovaginal candidiasis (VVC) caused by Candida albicans is a common disease worldwide. A very important C. albicans virulence factor is its ability to form biofilms on epithelium and/or on intrauterine devices promoting VVC. It has been shown that VVC has a hormonal dependency and that progesterone affects virulence traits of C. albicans cells. To understand how the acidic environment (pH 4) and progesterone (either alone and in combination) modulate C. albicans response during formation of biofilm, a transcriptomic analysis was performed together with characterization of the biofilm properties. Compared to planktonic cells, acidic biofilm-cells exhibited major changes in their transcriptome, including modifications in the expression of 286 genes that were not previously associated with biofilm formation in C. albicans. The vast majority of the genes up-regulated in the acidic biofilm cells (including those uniquely identified in our study) are known targets of Sfl1, and consistently, Sfl1 deletion is herein shown to impair the formation of acidic biofilms (pH 4). Under the acidic conditions used, the presence of progesterone reduced C. albicans biofilm biomass and structural cohesion. Transcriptomic analysis of biofilms developed in the presence of progesterone led to the identification of 65 down-regulated genes including, among others, the regulator Tec1 and several of its target genes, suggesting that the function of this transcription factor is inhibited by the presence of the hormone. Additionally, progesterone reduced the susceptibility of biofilm cells to fluconazole, consistent with an up-regulation of efflux pumps. Overall, the results of this study show that progesterone modulates C. albicans biofilm formation and genomic expression under acidic conditions, which may have implications for C. albicans pathogenicity in the vaginal environment.


Assuntos
Ácidos/farmacologia , Biofilmes/efeitos dos fármacos , Candida albicans/efeitos dos fármacos , Candida albicans/genética , Perfilação da Expressão Gênica , Progesterona/farmacologia , Antifúngicos/farmacologia , Candidíase Vulvovaginal/microbiologia , Feminino , Fluconazol/farmacologia , Proteínas Fúngicas/genética , Humanos , Concentração de Íons de Hidrogênio , Transcriptoma , Virulência/efeitos dos fármacos
13.
Ann Surg Oncol ; 27(5): 1589-1594, 2020 May.
Artigo em Inglês | MEDLINE | ID: mdl-31686340

RESUMO

PURPOSE: To analyze the relationship between the size of metastatic sentinel lymph nodes (SLNs) and the risk of non-sentinel lymph node (non-SLN) metastasis in endometrial cancer. PATIENTS AND METHODS: From a total of 328 patients with endometrial cancer who underwent SLN mapping from January 2013 to April 2019, 142 patients also underwent systematic completion pelvic ± paraaortic node dissections, and they form the basis of this study. The SLNs were examined by immunohistochemistry (IHC) when the hematoxylin-eosin stain was negative. RESULTS: The median age was 60 years. The overall detection rate for SLNs was 87.5%, and bilateral SLNs were observed in 66.2%, with a median of 2 SLNs resected (range 1-8). Twenty-nine (20.4%) cases had positive SLNs, with a median of one positive SLN. Regarding the size of SLN metastasis, 5 (3.5%) cases had isolated tumor cells (ITCs), 13 (9.2%) had micrometastases, and 11 (7.7%) had macrometastases. Notably, 14/29 (48.3%) had node metastases that were detected after IHC. Eight (27.6%) patients had positive non-SLNs, with a median count of 7 positive nodes (range 2-23). Regarding the size of SLN metastasis, non-SLN involvement was not present in cases with ITC (0/5) but was present in 15.4% (2/13) of cases with micrometastases and 54.5% (6/11) of cases with macrometastases. The only risk factor for positive non-SLNs was the size of SLN metastasis. CONCLUSIONS: Our data suggest that size of SLN metastasis is associated with the risk of non-SLN metastasis. No patients with ITCs in SLNs had another metastatic lymph node in this study.


Assuntos
Neoplasias do Endométrio/patologia , Linfonodo Sentinela/patologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Brasil , Carcinoma Endometrioide/patologia , Carcinoma Endometrioide/cirurgia , Neoplasias do Endométrio/cirurgia , Feminino , Humanos , Histerectomia , Imuno-Histoquímica , Metástase Linfática , Pessoa de Meia-Idade , Micrometástase de Neoplasia , Estadiamento de Neoplasias , Linfonodo Sentinela/cirurgia , Biópsia de Linfonodo Sentinela
14.
Med Mycol ; 58(3): 341-350, 2020 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-31254346

RESUMO

Vulvovaginal candidiasis (VVC) is an infection usually caused by Candida albicans and increasingly by Candida glabrata, which has an intrinsically high resistance to commonly used antifungals. Candida species possess virulence factors that contribute to VVC development, as the ability to form biofilms in vaginal walls and intrauterine devices. It is known that VVC is promoted by conditions that increase the hormones levels, during pregnancy, however, the effects of hormones on Candida cells are poorly studied, especially in C. glabrata. Thus, the influence of progesterone and ß-estradiol, at normal cycle and pregnancy concentrations, on biofilm formation and resistance of C. albicans and C. glabrata vaginal isolates, was analyzed using acidic conditions (pH 4). Biofilms of C. albicans developed in the presence of hormones presented reduced biomass (up to 65%) and impaired cells ability to produce filamentous forms. On the other hand, C. glabrata presented high adaptation to the presence of hormones, which did not affect its biofilm formation. Additionally, hormones impaired the susceptibility of C. albicans and C. glabrata cells to azoles, with potential clinical significance in the presence of pregnancy hormone levels. A similar result was obtained for the susceptibility to hydrogen peroxide, a biological vaginal barrier against Candida growth. Overall, the results of this study suggest that hormones may act as environmental cues promoting Candida protection from vaginal defenses and harmful conditions, what may have implications in Candida vaginal pathogenicity and treatment of VVC, especially in C. glabrata infections due to its high adaptability to vaginal conditions.


Assuntos
Azóis/farmacologia , Biofilmes/efeitos dos fármacos , Candida albicans/efeitos dos fármacos , Candida glabrata/efeitos dos fármacos , Peróxido de Hidrogênio/farmacologia , Progesterona/farmacologia , Antifúngicos/farmacologia , Biofilmes/crescimento & desenvolvimento , Candida albicans/fisiologia , Candida glabrata/fisiologia , Candidíase Vulvovaginal/microbiologia , Estradiol/farmacologia , Feminino , Humanos , Concentração de Íons de Hidrogênio , Vagina/microbiologia
15.
Biofouling ; 36(5): 621-630, 2020 05.
Artigo em Inglês | MEDLINE | ID: mdl-32674601

RESUMO

Candida species are fungal opportunistic pathogens capable of colonizing and infecting various human anatomical sites, where they have to adapt to distinct niche-specific pH conditions. The aim of this study was to analyse the features of Candida albicans and Candida glabrata biofilms developed under neutral and vaginal acidic (pH 4) conditions. C. albicans produced thicker and more filamentous biofilms under neutral than under acidic conditions. On the other hand, the formation of biofilms by C. glabrata was potentiated by the acidic conditions suggesting the high adaptability of this species to the vaginal environment. In general, both species developed biofilms containing higher amounts of matrix components (protein and carbohydrate) under neutral than acidic conditions, although the opposite result was found for one C. glabrata strain. Overall, this study contributes to a better understanding of the modulation of C. albicans and C. glabrata virulence by specific pH conditions.


Assuntos
Biofilmes , Candida albicans , Candida glabrata , Candida , Feminino , Humanos , Concentração de Íons de Hidrogênio
16.
Dent Traumatol ; 34(3): 158-163, 2018 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-29603635

RESUMO

BACKGROUND/AIM: Among the diseases related to oral health, traumatic dental injuries (TDI) can lead to pain, loss of function and aesthetic problems, with physical, emotional and social consequences for children and their families. The aim of this study was to investigate the relationship between enamel fracture and enamel-dentin fracture with oral health-related quality of life (OHRQoL). MATERIAL AND METHODS: This cross-sectional study had a representative sample of 1589 children between 8-10 years of age from public schools. The OHRQoL was obtained through the Child Perceptions Questionnaire (CPQ8-10 ), which is a questionnaire validated for Brazilian children. Clinical data were collected by 4 calibrated examiners (Kappa > 0.7) using the Decay, Missing, Filled Teeth (DMFT) Index, Dental Aesthetic Index (DAI) and TDI. A socio-economic questionnaire was sent to the caregivers to be answered at home. Descriptive statistics and Poisson regression with prevalence ratio (PR) and 95% confidence interval (CI) were used for statistical analysis. RESULTS: The prevalence of TDI was 10.6%, and among these 10.3% who had an impact on the OHRQoL, it was due to enamel-dentin fracture. Children with enamel-dentin fracture had (PR 1.35; 95% CI 1.07-1.70) higher prevalence of impact on the OHRQoL. Children with enamel fracture had no impact on the OHRQoL (P = .254). CONCLUSION: Enamel fracture had no significant impact on children's quality of life, while enamel-dentin fracture did have an impact on quality of life.


Assuntos
Qualidade de Vida , Coroa do Dente/lesões , Fraturas dos Dentes/epidemiologia , Fraturas dos Dentes/psicologia , Brasil/epidemiologia , Criança , Estudos Transversais , Feminino , Humanos , Masculino , Prevalência , Inquéritos e Questionários
17.
Ann Surg Oncol ; 24(13): 3981-3987, 2017 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-29058141

RESUMO

BACKGROUND: This study aimed to determine the impact of sentinel lymph node (SLN)-mapping on the staging of high-risk endometrial cancer (endometrioid grade 3, serous, clear cell, carcinosarcoma, deep myometrial invasion, or angiolymphatic invasion). METHODS: The study analyzed a series of 236 patients treated at AC Camargo Cancer Center from June 2007 to February 2017. The compared 75 patients who underwent SLN-mapping (SLN group) with 161 patients who received pelvic ± para-aortic lymphadenectomy (N-SLN group). Patients with adnexal, peritoneal, or suspicious node metastases were excluded from the study. RESULTS: The groups did not differ in terms of age, histologic type, or presence of deep myometrial invasion. The overall detection rate for SLNs was 85.3%, and bilateral SLNs were observed in 60% of the patients. Of 20 positive SLNs, 8 (40%) were detected only after immunohistochemistry (IHC). The findings showed an overall sensitivity of 90%, a negative predictive value of 95.7%, and a false-negative predictive value of 4.3%. The SLN group had more pelvic node metastases detected than the N-SLN group (26.7 vs 14.3%; p = 0.02). However, the rate of para-aortic node metastases did not differ between the two groups (13.5 vs 5.6%; p = 0.12). Five patients (3.5%) in the N-SLN group had isolated para-aortic node metastases versus none in the patients with SLN mapped. Additionally, the SLN group received more adjuvant chemotherapy (48 vs 33.5%; p = 0.03). CONCLUSIONS: The data suggest that SLN-mapping identifies more pelvic node metastases than lymph node dissection alone and increases the node detection rate by 12.5% after IHC. Furthermore, no isolated para-aortic node metastases are observed when SLN is detected.


Assuntos
Adenocarcinoma de Células Claras/secundário , Carcinossarcoma/secundário , Cistadenocarcinoma Seroso/secundário , Neoplasias do Endométrio/patologia , Histerectomia , Biópsia de Linfonodo Sentinela , Linfonodo Sentinela/patologia , Adenocarcinoma de Células Claras/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Carcinossarcoma/cirurgia , Cistadenocarcinoma Seroso/cirurgia , Neoplasias do Endométrio/cirurgia , Feminino , Seguimentos , Humanos , Excisão de Linfonodo , Metástase Linfática , Masculino , Pessoa de Meia-Idade , Invasividade Neoplásica , Prognóstico , Linfonodo Sentinela/cirurgia
18.
Caries Res ; 51(5): 482-488, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28954260

RESUMO

The objective of this research was to verify the association between verbal bullying and untreated dental caries. The present cross-sectional study had a representative sample of 1,589 children, aged 8-10 years, from public schools. Information on verbal bullying related to the oral condition was obtained through a questionnaire directed to the students. Clinical data were collected by 4 calibrated examiners (kappa > 0.70) using the DMFT/dmft and PUFA/pufa indexes for caries. Socioeconomic issues were answered by those responsible. The prevalence of verbal bullying related to the oral condition was 27%. The results of the Poisson regression, in an adjusted multiple model, showed a significant association between bullying and untreated caries lesions (prevalence ratio, PR: 1.27; 95% CI: 1.07-1.52), PUFA/pufa index (PR: 1.34; 95% CI: 1.11-1.61), pulp involvement (PR: 1.35; 95% CI: 1.09-1.67), and abscess (PR: 1.74; 95% CI: 1.18-2.56). It was concluded that children with untreated dental caries had a higher prevalence of verbal bullying when compared to caries-free or disease-treated children.


Assuntos
Bullying , Cárie Dentária/epidemiologia , Comportamento Verbal , Brasil/epidemiologia , Criança , Estudos Transversais , Índice CPO , Feminino , Humanos , Masculino , Má Oclusão/epidemiologia , Prevalência , Inquéritos e Questionários
19.
Mycopathologia ; 182(7-8): 653-664, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28439794

RESUMO

Candida glabrata is one of most prevalent yeast in fungal infections, especially in immunocompromised patients. Its azole resistance results in a low therapeutic response, particularly when associated with biofilms. The main goal of this work was to study the effectiveness of voriconazole (Vcz) against C. glabrata biofilms oral pathologies, as esophageal or oropharyngeal candidiasis. Antifungal susceptibilities were determined in pre-formed 24-h-biofilms and ERG genes expression was determined by qRT-PCR. Protein quantification was performed using BCA® Kit, carbohydrate was estimated according to the Dubois assay and ß-1,3 glucans concentration were determined using Glucatell® kit. Finally, ergosterol, Vcz, and fluconazole (Flu) concentrations within the biofilm matrices were determined by RP-HPLC. Results showed that C. glabrata biofilms were more susceptible to Vcz than to Flu and that ERG genes expression evidenced an overexpression of the three ERG genes in the presence of both azoles. The matrix content presented a remarked decrease in proteins and an increase in carbohydrates, namely ß-1,3 glucans. Ergosterol was successfully detected and quantified in the biofilm matrices, with no differences in all the considered conditions. Vcz demonstrated better diffusion through the biofilms and better cell penetration capacities, than Flu, indicating that the structure of the drug molecule fully influences its dissemination through the biofilm matrices. This work showed that Vcz is notably more effective than Flu for the treatment of resistant C. glabrata oral biofilms, which demonstrates a clinical relevance in its future use for the treatment of oropharyngeal/esophageal candidiasis caused by this species.


Assuntos
Antifúngicos/uso terapêutico , Biofilmes/efeitos dos fármacos , Candida glabrata/efeitos dos fármacos , Candida glabrata/fisiologia , Regulação Fúngica da Expressão Gênica/efeitos dos fármacos , Voriconazol/uso terapêutico , Candida glabrata/genética , Candida glabrata/isolamento & purificação , Candidíase/microbiologia , Matriz Extracelular/química , Feminino , Perfilação da Expressão Gênica , Humanos , Reação em Cadeia da Polimerase em Tempo Real , Sistema Urinário/microbiologia , Vagina/microbiologia
20.
Crit Rev Microbiol ; 42(6): 905-27, 2016 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-26690853

RESUMO

Vulvovaginal candidiasis (VVC) is an infection caused by Candida species that affects millions of women every year. Although Candida albicans is the main cause of VVC, the identification of non-Candida albicans Candida (NCAC) species, especially Candida glabrata, as the cause of this infection, appears to be increasing. The development of VVC is usually attributed to the disturbance of the balance between Candida vaginal colonization and host environment by physiological or nonphysiological changes. Several host-related and behavioral risk factors have been proposed as predisposing factors for VVC. Host-related factors include pregnancy, hormone replacement, uncontrolled diabetes, immunosuppression, antibiotics, glucocorticoids use and genetic predispositions. Behavioral risk factors include use of oral contraceptives, intrauterine device, spermicides and condoms and some habits of hygiene, clothing and sexual practices. Despite a growing list of recognized risk factors, much remains to be elucidated as the role of host versus microorganisms, in inducing VVC and its recurrence. Thus, this review provides information about the current state of knowledge on the risk factors that predispose to VVC, also including a revision of the epidemiology and microbiology of VVC, as well as of Candida virulence factors associated with vaginal pathogenicity.


Assuntos
Candida/isolamento & purificação , Candidíase Vulvovaginal/microbiologia , Candida/classificação , Candida/genética , Candida/fisiologia , Candidíase Vulvovaginal/epidemiologia , Feminino , Humanos , Gravidez , Fatores de Risco
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