Publications by authors named "Roberta Santos"

Unlabelled: The prevalence of cardiovascular disease varies with sex, and the impact of intrinsic sex-based differences on vasculature is not well understood. Animal models can provide important insight into some aspects of human biology, however not all discoveries in animal systems translate well to humans. To explore the impact of chromosomal sex on proteomic phenotypes, we used iPSC-derived vascular smooth muscle cells from healthy donors of both sexes to identify sex-based proteomic differences and their possible effects on cardiovascular pathophysiology.

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This work proposes the pyrolysis of the cassava plant shoot system biomass and a comprehensive chemical characterization of the resulting bio-oil. The highest yields of liquid products were obtained at 600 °C, with 12.6 % bio-oil (organic fraction), which presented the lowest total acid number of 65.

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Objective: To ascertain how screening for preterm birth is performed among obstetricians working in public and private practice in a middle-income country.

Methods: Cross-sectional study of 265 obstetrician-gynecologists employed at public and private facilities. An online questionnaire was administered, with items designed to collect data on prematurity screening and prevention practices.

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Background: Stroke AI platforms assess infarcted core and potentially salvageable tissue (penumbra) to identify patients suitable for mechanical thrombectomy. Few studies have compared outputs of these platforms, and none have been multicenter or considered NIHSS or scanner/protocol differences. Our objective was to compare volume estimates and thrombectomy eligibility from two widely used CT perfusion (CTP) packages, Viz.

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Purpose: The use of immunomodulators in the treatment of multiple myeloma (MM) patients has been associated with venous thromboembolism (VTE). Due to the increase in mortality of cancer patients, venous thromboembolism is an important concern for newly diagnosed multiple myeloma (NDMM) patients. The aim of this study was to determine the incidence of thromboembolic events and evaluate associated risk factors among Brazilian NDMM patients using immunomodulators.

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Pesticides are compounds known to cause immunetoxicity in exposed individuals, which have a potential to substantially modify the prognosis of pathologies dependent on an efficient immune response, such as breast cancer. In this context, we examined the circulating cytokine profile of Th1/Th2/Th17 patterns in women occupationally exposed to pesticides and their correlation with worse prognostic outcomes. Peripheral blood samples were collected from 187 rural working women with breast cancer, occupationally exposed or not to pesticides, to quantify the levels of cytokines IL-1β, IL-12, IL-4, IL-17-A, and TNF -α.

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Background: The current techniques for determining carbon and nitrogen content to provide information about the nutritional status of plants are time-consuming and expensive. For this reason, the objective of this study was to develop an analytical method for the direct and simultaneous determination of nitrogen and carbon elemental content in soybean leaves using near-infrared spectroscopy and compare the performance of conventional (1100-2500 nm spectral range) and portable equipment (1100-1700 nm spectral range). Partial least-squares regression models were developed using 27 soybean leaf samples collected during the 2021 harvest and applied for the simultaneous determination of carbon and nitrogen in 13 samples collected during the 2022 harvest.

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Background: Survival in multiple myeloma (MM) has improved in the past years with the introduction of immunomodulators and proteasome inhibitors. However, chemotherapyinduced peripheral neuropathy (CIPN) is associated with both drug classes affecting Health- Related Quality of Life (HRQoL) and activities of daily living (ADL).

Objective: We evaluated CIPN in MM patients to identify associated factors and impacts on HRQoL and ADL.

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Introduction: Elderly with cancer often have multimorbidity, which determines a higher risk of polypharmacy. This is related to negative clinical results such as adverse drug reaction and emergence service visits. Furthermore, polypharmacy increases the risk of using potentially inappropriate medications.

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Purpose: Verify the association between anticholinergic burden and health-related quality of life of patients with multiple myeloma.

Methods: Cross-sectional study with multiple myeloma outpatient from a state capital city in southeastern Brazil. Sociodemographic, clinical, and pharmacotherapeutic variables were collected by interview.

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Background: Multiple myeloma (MM) is an incurable cancer of plasma cells; the survival of which has improved over the years with the emergence of new treatments. In Brazil, the availability of treatment-regimens is different from developed countries. Real-world evidence with Brazilian patients is lacking.

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Venous thromboembolism (VTE) is among the complications of Multiple Myeloma (MM) and may occur in up to 10% of this patient population. However, medications used in MM therapy such as immunomodulators (IMID) may raise these rates. Thus, risk prediction models have been developed to quantify the risk of VTE in MM patients.

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Objectives: to describe the use of toys by nursing during the care of children in the inpatient unit; to analyze the factors that influence the use of therapeutic toys by nursing in the care of hospitalized children.

Methods: qualitative research, conducted in a pediatric hospital in Rio de Janeiro between July and August 2019. Semi-structured interview and thematic analysis were used as methodological procedure.

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Fermentation is an important tool in producing functional beverages through agro-industrial wastes, and medicinal and aromatic plants due to the specific content of bioactive molecules. Therefore, this study evaluated the contribution of (chamomile), (lemongrass), or (peppermint) extracts to the phytochemical profile and potential biological effects of a functional fermented orange beverage in vitro and in silico. The concentrations of aromatic herbal extracts that yielded the best sensory performance for fermented beverages were selected for analyses that involved characterizing the fermented beverages.

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This qualitative study aimed to analyze the social actors' perceptions of public responses during the COVID-19 pandemic. We conducted semi-structured interviews with eleven civil society representatives and social movement leaders. We also performed triangulation based on the systematization of opinion papers authored by humanitarian organizations and civil society leaders and published in large-circulation newspapers.

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Soybean crops are of great economic importance worldwide and in Brazil. This crop is a commodity that provides large amounts of financial resources to the country. Soybean productivity is influenced by several biotic and abiotic factors, and most of these factors cannot be controlled by agricultural practices.

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Plant growth-promoting endophytic microorganisms in agriculture have been expanding in Brazil and are an excellent strategy to face the challenges of current agriculture, such as reducing production costs with fewer environmental impacts, without detriment to productivity. However, little is known about the factors that can affect the colonization of endophytic such as inoculant concentration and mineral fertilization. The present study aimed to evaluate the influence of these factors on soybean and maize crops and found that for soybean crops, the highest concentration of 1 × 10 and 1 × 10 CFU ml promoted the highest number of recovered bacteria, when there was no mineral fertilization.

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Objective: To describe the prevalence of heavy episodic drinking in the Brazilian adult population, according to sociodemographic characteristics, in 2013 and in 2019.

Methods: A cross-sectional study using data on heavy episodic drinking among adults (≥ 18 years) from the National Health Survey, analyzed descriptively.

Results: 60,202 participants were included in 2013 and 88,531 in 2019.

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This study investigated the potential use of the String Test (ST) for the diagnosis of pulmonary tuberculosis (PTB) in children and adolescents. This is a case series of patients aged 4-15 years presenting with clinically presumed PTB and submitted to ST in three pediatric TB referral centers in Brazil, between November 2017 and July 2020. The ST was performed in the morning, after 4-12 h of fasting, followed by ingestion of the capsule by the patient, which was attached to the patient's malar region.

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Article Synopsis
  • - The study aimed to analyze the use of fall risk-increasing drugs (FRIDs) and neuropathy-inducing medications in older adults with multiple myeloma (MM) in Brazil.
  • - Conducted with 153 older adults, it found that 71.3% were using FRIDs, with diuretics, antidepressants, and opioids being the most common, and 32.7% were at high risk of falling, particularly due to polypharmacy.
  • - The study concluded that the high frequency of FRID use is linked to polypharmacy in older adults with MM, highlighting the need for careful medication management to mitigate risks.
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Objective: Multiple myeloma (MM) is an incurable hematological cancer and its treatment is geared to promote better Health-Related Quality of Life (HRQoL). We aimed to assess HRQoL and compare scores between variables on therapeutic regimens and polypharmacy in MM patients.

Methods: This cross-sectional study was performed from April/2019 to February/2020 in Belo Horizonte, Brazil.

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Snake envenoming is a neglected tropical disease that affects more than 2.7 million people worldwide. The treatment is based on the administration of antivenom composed of heterologous immunoglobulins, species-specific therapy involving the possibility of adverse reactions due to activation of the immune system.

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Plant growth-promoting bacteria (PGPB) and humic substances (HSs) are promising options for reducing the use of pesticides and mineral fertilizers. Although many studies have shown the effects of PGPB and HSs separately, little information is available on plant responses to the combined application of these biostimulants despite the great potential for the simultaneous action of these biological inputs. Thus, the objective of this review is to present an overview of scientific studies that addressed the application of PGPB and HSs to different crops.

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There are no studies in literature on the effect of inoculant concentrations on plant growth promotion. Therefore, in the present study, two experiments were carried out, one under pot conditions and the other in the field with cotton crop, in order to verify the effect of and concentrations on the biometric and nutritional parameters of plant and soil, in addition to yield. The pot experiment evaluated the effect of different concentrations, ranging from 1 × 10 to 1 × 10 colony-forming units per milliliter (CFU mL) of microorganisms (Bv188), (Bs248), (Bs290), (F111), (F112), and sp.

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