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1.
Chem Biodivers ; 21(7): e202400692, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38771917

RESUMO

Melanoma is a cancer type with high lethality, metastatic capacity, and limited therapeutic options. Different essential oils have been reported with antitumoral potential. Thus, the essential oil (EO) of the leaves of C. floribundus was obtained by hydrodistillation and analyzed by GC-MS. The majority of substances annotated were ß-selinene, E-Caryophyllene, and Premnaspirodiene. The cytotoxic activity of EO was evaluated on three melanoma cell lines SKMEL-147, WM-1366, and CHL-1, which are representative of metastatic melanoma with different mutation profiles. The IC50 values found for EO were lower than temozolomide (reference drug) in all melanoma cell lines. In addition, the selectivity of EO was upward when compared to the reference drug. Interestingly, the WM-1366 cell line was the most responsive, and these findings are very promising considering that it has shown high resistance to the plethora of compounds. Thus, the C. floribundus EO is a promising source to drive further studies for the development of new treatments for metastatic melanoma, which is urgently relevant given the resistance of this pathology to current treatments.


Assuntos
Antineoplásicos Fitogênicos , Proliferação de Células , Croton , Ensaios de Seleção de Medicamentos Antitumorais , Melanoma , Óleos Voláteis , Folhas de Planta , Humanos , Óleos Voláteis/farmacologia , Óleos Voláteis/química , Óleos Voláteis/isolamento & purificação , Folhas de Planta/química , Melanoma/tratamento farmacológico , Melanoma/patologia , Croton/química , Proliferação de Células/efeitos dos fármacos , Linhagem Celular Tumoral , Antineoplásicos Fitogênicos/farmacologia , Antineoplásicos Fitogênicos/química , Antineoplásicos Fitogênicos/isolamento & purificação , Relação Dose-Resposta a Droga , Sobrevivência Celular/efeitos dos fármacos
2.
Obes Surg ; 33(12): 3938-3943, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37880463

RESUMO

BACKGROUND: The behavior of patients undergoing metabolic bariatric surgery (MBS) has been widely investigated to better understand their attitudes and to formulate effective advisory strategies. Although these elements have been studied separately, the magnitude of these behaviors still needs to be determined from a combined factors approach. This study aimed to identify the lifestyle patterns of patients who underwent MBS 5 or more years ago. METHODS: In this observational study, 123 patients who underwent MBS at least 5 years ago were included. Anthropometric data, sociodemographic profile, dietary intake, physical activity level, sleeping, smoking, and alcohol consumption were collected for all participants. Lifestyle pattern was evaluated using principal component analysis (PCA) and the Kaiser-Meyer-Olkin (KMO) index was applied to evaluate data factorability. RESULTS: PCA identified two patterns of behavior adopted by the participants in the late postoperative (PO) period (more than 5 years PO) of MBS. In the first pattern, a positive correlation was found between consumption of ultra-processed foods (r = 0.459), risky consumption of alcoholic beverages (r = 0.630), and tobacco use (r = 0.584). In the second, a positive correlation was observed between the consumption of unprocessed or minimally processed foods (r = 0.692) and more sleep time per day (r = 0.654). CONCLUSION: After 5 years of PO, combined behavior analysis revealed healthy and unhealthy lifestyle patterns, which points to the relevance of permanent clinical follow-up of these patients to ensure the best health status.


Assuntos
Cirurgia Bariátrica , Obesidade Mórbida , Humanos , Obesidade Mórbida/cirurgia , Estilo de Vida , Ingestão de Alimentos , Período Pós-Operatório , Comportamento Alimentar
3.
Cancers (Basel) ; 15(6)2023 Mar 09.
Artigo em Inglês | MEDLINE | ID: mdl-36980566

RESUMO

Hepatocellular carcinoma often develops in the context of chronic liver disease. It is the sixth most frequently diagnosed cancer and the third most common cause of cancer-related mortality worldwide. Although the mainstay of therapy is surgical resection, most patients are not eligible because of liver dysfunction or tumor extent. Sorafenib was the first tyrosine kinase inhibitor that improved the overall survival of patients who failed to respond to local therapies or had advanced disease, and for many years, it was the only treatment approved for the first-line setting. However, in recent years, trials have demonstrated an improvement in survival with treatments based on immunotherapy and new targeting agents, thereby extending the treatment options. A phase III trial showed that a combination of immunotherapy and targeted therapy, including atezolizumab plus bevacizumab, improved survival in the first-line setting, and is now considered the new standard of care. Other agents and combinations are being tested, including the combination of nivolumab plus ipilimumab and tremelimumab plus durvalumab, and they reportedly have clinical benefits. The aim of this manuscript is to review the latest approved therapeutic options in first- and second-line settings for advanced HCC and discuss future perspectives.

4.
Transgend Health ; 7(4): 357-363, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-36033206

RESUMO

Purpose: To analyze the route that transgender men take to gain access to the treatments that are available for going through the transsexualizing process at a public care and attendance center in one of the capital cities of north-eastern Brazil. Methods: A qualitative case study which used the therapeutic itinerary as a theoretical-methodological path. The research was carried out between the months of September 2019 and March 2020 in a care and attendance center for trans people. The inclusion criteria were as follows: self-recognition as transgender men, over 18 years of age, and whose transsexualizing process was being carried out in the service stage of this study. Semistructured interviews were conducted. All interviewees participated voluntarily and signed a Free and Informed Consent Form before the study. Results: This study included 18 transgender men whose average age was 26.3 years. Of these, five (27.7%) were students, with one (5.5%) of them, as well as the others (nonstudents), performing some type of paid work. Three thematic categories emerged: (i) The (self-re-) cognition of the trans world through the internet and social media; (ii) the expression of male gender identity and the (non) support network; and (iii) access to transsexualizing process in SUS (Brazilian Public Healthcare System). Conclusion: The identification of the path taken by trans men, from their self-recognition and to the therapeutic care accessed through SUS' transsexualizing process, made it possible to identify the impacts of their experiences upon the construction of their gender identities.

5.
Science ; 376(6590): 283-287, 2022 04 15.
Artigo em Inglês | MEDLINE | ID: mdl-35271301

RESUMO

On 14 August 2021, the moment magnitude (Mw) 7.2 Nippes earthquake in Haiti occurred within the same fault zone as its devastating 2010 Mw 7.0 predecessor, but struck the country when field access was limited by insecurity and conventional seismometers from the national network were inoperative. A network of citizen seismometers installed in 2019 provided near-field data critical to rapidly understand the mechanism of the mainshock and monitor its aftershock sequence. Their real-time data defined two aftershock clusters that coincide with two areas of coseismic slip derived from inversions of conventional seismological and geodetic data. Machine learning applied to data from the citizen seismometer closest to the mainshock allows us to forecast aftershocks as accurately as with the network-derived catalog. This shows the utility of citizen science contributing to our understanding of a major earthquake.

6.
Eur J Sport Sci ; 22(2): 289-296, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-33327887

RESUMO

AbstractThis study compared and calibrated metabolic equivalents (METs) per day from 24-hour physical activity recall (24hPAR) with accelerometry. A sub-sample of 74 adults of both sexes, residents of Brasília, Brazil, from a larger study had same day measurements of accelerometry and 24hPAR data. METs values were assessed by accelerometry (7 consecutive days of use) and by 24hPAR (minimum of one and maximum of 2 per person). A script was written in the R statistical software to analyse the recall and accelerometer data. The script ran a simple linear regression to visualize the relationship between total METs/day for the two methods and to execute the recall measurement error correction. Most of participants were female (54.1%), with at least university graduate (94.6%) and mean age of 34.8 years (±11.83). The correlation coefficient obtained between 24hPAR and accelerometer was r = 0.55, considered moderate and significant (p < 0.001). A majority of the participants (77%) underestimated METs values compared to accelerometry when answering the questionnaire. Calibration of 24hPAR allowed us to approximate MET values to the accelerometer. The calibration equation to correct total METs/day for measurement error is (total 24hPAR METs/day - 10.6)/0.619. The 24hPAR is a decent tool to assess PA level in large adults' samples. However, compared with accelerometer, it underestimates METs values, which can be corrected with the use of the calibration equation provided in this study.


Assuntos
Acelerometria , Exercício Físico , Acelerometria/métodos , Adulto , Calibragem , Feminino , Humanos , Masculino , Rememoração Mental , Equivalente Metabólico
7.
J Oncol Pharm Pract ; 28(2): 326-336, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-33470162

RESUMO

INTRODUCTION: Capecitabine is an oral anticancer drug which can cause some adverse reactions and the great challenge for its use is to ensure the medication adherence. The aim of this study was to analyze adverse reactions and adherence to capecitabine in patients with gastrointestinal cancer. METHODS: A prospective study was performed in a tertiary teaching hospital in Brazil. Outpatients undergoing capecitabine treatment for colorectal or gastric cancer were followed for three cycles of treatment. Patient demographic and clinical characteristics data were collected. Adverse reactions were analyzed using Common Terminology Criteria for Adverse Events (CTCAE) v.4. Adherence to capecitabine were evaluated using Morisky-Green and MedTake tests. Statistical analysis was conducted using Chi-square, Fisher's exact and McNemer tests. RESULTS: One hundred and four patients were enrolled in this study, with a mean age was 58.5 ± 10.9 years; 51.0% were men and 51.0% Caucasian. Nausea and diarrhea were the most frequently reported adverse reactions (82.7% and 62.5%, respectively), followed by vomiting (54.8%), fatigue (54.8%), and hand-foot syndrome (53.9%). Nausea and diarrhea were also the most severe adverse reactions. Most patients were adherent to capecitabine in all cycles of treatment using the Morisky-Green test. Adherence increased significantly between cycle 1 and cycle 2 by MedTake test (p < 0.001). Some demographic and clinical characteristics were associated with adverse reactions (e.g., age and nausea, gender and nausea and vomiting) and capecitabine adherence (e.g., marital status and educational level) as well as some adverse reactions were associated with capecitabine adherence (hand-foot syndrome and nausea). CONCLUSIONS: Clinical oncology pharmacists must provide patient information on the correct use of capecitabine, manage adverse reactions, and monitor adherence to treatment. Strategies to prevent non-adherence to capecitabine must be adopted to ensure the success of pharmacotherapy.


Assuntos
Neoplasias Gastrointestinais , Náusea , Idoso , Capecitabina/efeitos adversos , Fluoruracila/efeitos adversos , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Vômito
8.
Clin Transl Oncol ; 23(12): 2579-2583, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34091868

RESUMO

INTRODUCTION: Hypofractionated whole breast irradiation (hWBI) and intraoperative radiotherapy (IORT) could be associated in breast cancer patients showing high-risk factors of local recurrence after breast conserving therapy (BSC). The aim of this trial was to evaluate, for the first time, the toxicity and cosmesis of hWBI after photon-IORT in high-risk patients treated by adjuvant chemotherapy. MATERIALS AND METHODS: Thirty-one high-risk localized breast cancer patients treated by BCS, IORT (20 Gy), and adjuvant chemotherapy were included from February 2019 to August 2020 in this prospective trial, of hWBI (40.5 Gy/2.67 Gy/15 fractions). Acute and late toxicity (CTCAEv5.0) and cosmesis (Harvard scale), were assessed after treatment. RESULTS: All patients completed their treatment and were evaluable after treatment. No patients showed severe (G3) acute/late toxicity. Excellent/good cosmesis at least 6 months after completing the treatment, was present in 93.6% of the patients. CONCLUSION: hWBI in high-risk localized breast cancer patients treated by chemotherapy seems to have similar toxicity and cosmetic results than conventionally fractionated WBI in combination to photon-IORT after BCS.


Assuntos
Neoplasias da Mama/radioterapia , Quimioterapia Adjuvante/métodos , Mastectomia Segmentar/métodos , Cuidados Pós-Operatórios , Radioterapia Adjuvante/métodos , Adulto , Idoso , Neoplasias da Mama/patologia , Neoplasias da Mama/terapia , Terapia Combinada , Feminino , Seguimentos , Humanos , Pessoa de Meia-Idade , Prognóstico , Estudos Prospectivos , Hipofracionamento da Dose de Radiação
9.
Environ Sci Pollut Res Int ; 28(19): 23778-23790, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-33128710

RESUMO

Conventional sewage treatment systems are generally not designed to remove micropollutants, requiring the development of new technologies, such as the combination of biological processes with advanced oxidative processes. The configuration of an anaerobic expanded granular sludge bed (EGSB) reactor stands out for its use of granular biomass and high sludge bed expansion. Ozonation is an advanced oxidative process that stands out as one of the most promising technologies for the degradation of micropollutants. Thus, the present work aimed to evaluate the removal of drugs through the application of ozonation as a polishing process for the effluent of an EGSB reactor that was fed with synthetic sewage. Ozonation was shown to be efficient in the degradation of these compounds, reaching removals above 90%. It was found that the degradation profile of each drug varied according to its chemical structure since some drugs are more susceptible to oxidation than others and since the concentrations of pharmaceuticals are also related to their removal. Moreover, the assessment of risks to the environment and human health confirmed the need to assess the best scenario for risk reduction considering all drugs, since even with almost complete removal of some compounds, the effluents still showed toxicity. Thus, the high removal efficiencies found for the evaluated micropollutants showed that this technique has the potential to be used to improve the quality of biological reactor effluents or even to be combined in effluent reuse systems.


Assuntos
Ozônio , Esgotos , Anaerobiose , Reatores Biológicos , Humanos , Oxirredução , Eliminação de Resíduos Líquidos
10.
Clin Transl Oncol ; 23(1): 179-182, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-32445034

RESUMO

INTRODUCTION: Hypofractionated whole breast irradiation (HWBI) is the current standard of treatment after breast conservative surgery (BCS). Intraoperative radiotherapy (IORT) must be associated to WBI in patients showing high-risk factors of local recurrence in the definitive pathology report. The aim of this trial was to evaluate, for the first time, the acute toxicity and cosmesis of HWBI after photon-IORT. MATERIALS AND METHODS: Twenty-six luminal breast cancer patients treated by BCS and IORT(20 Gy) were included between February and December 2019, in this prospective trial, of adjuvant HWBI (40.5 Gy/2.67 Gy/15 fractions). Acute toxicity (CTCAEv5.0) and cosmesis (Harvard scale), were assessed 3 months after treatment. RESULTS: All patients completed their treatment without interruptions. All cases were evaluable 3 months after treatment showing no toxicity ≥ G3 and excellent/good cosmesis assessment in 88% of the patients. CONCLUSION: HWBI seems to have similar acute toxicity and cosmesis results than conventionally fractionated WBI in combination to photon-IORT after BCS.


Assuntos
Neoplasias da Mama/radioterapia , Adulto , Idoso , Neoplasias da Mama/patologia , Neoplasias da Mama/cirurgia , Estudos de Viabilidade , Feminino , Humanos , Período Intraoperatório , Mastectomia Segmentar , Pessoa de Meia-Idade , Recidiva Local de Neoplasia , Fótons/uso terapêutico , Estudos Prospectivos , Hipofracionamento da Dose de Radiação , Radioterapia Adjuvante/efeitos adversos , Radioterapia Adjuvante/métodos , Fatores de Tempo , Resultado do Tratamento
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