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Junqueira LA, Raposo FJ, Vitral GSF, Tabriz AG, Douroumis D, Raposo NRB, Brandão MAF. Three-Dimensionally Printed Vaginal Rings: Perceptions of Women and Gynecologists in a Cross-Sectional Survey. Pharmaceutics 2023; 15:2302. [PMID: 37765271 PMCID: PMC10537249 DOI: 10.3390/pharmaceutics15092302] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 09/04/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023] Open
Abstract
Three-dimensional printing technologies can be implemented for the fabrication of personalized vaginal rings (VRs) as an alternative approach to traditional manufacturing. Although several studies have demonstrated the potential of additive manufacturing, there is a lack of knowledge concerning the opinions of patients and clinicians. This study aimed to investigate the perception of women and gynecologists regarding VRs with personalized shapes. The devices were printed with different designs (traditional, "Y", "M", and flat circle) by Fused Deposition Modeling for a cross-sectional survey with 155 participants. Their anticipated opinion was assessed through a questionnaire after a visual/tactile analysis of the VRs. The findings revealed that most women would feel comfortable using some of the 3D-printed VR designs and demonstrated good acceptability for the traditional and two innovative designs. However, women presented multiple preferences when the actual geometry was assessed, which directly related to their age, previous use of the vaginal route, and perception of comfort. In turn, gynecologists favored prescribing traditional and flat circle designs. Overall, although there was a difference in the perception between women and gynecologists, they had a positive opinion of the 3D-printed VRs. Finally, the personalized VRs could lead to an increase in therapeutic adherence, by meeting women's preferences.
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Dias JM, Mendes AF, Pestana de Aguiar E, Silveira LC, Noel Dias MF, Barbosa Raposo NR. Interobserver Agreement and Satisfaction With the use of Telemedicine for Evaluating low Back Pain: A Primary, Observational, Cross-Sectional, Analytical Study. Global Spine J 2023:21925682231194453. [PMID: 37585445 DOI: 10.1177/21925682231194453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/18/2023] Open
Abstract
STUDY DESIGN A primary, observational, cross-sectional, analytical study. OBJECTIVE The development of a framework for systematic telemedicine (TM) for orthopedic physicians in frequent clinical care may increase agreement in diagnosis and satisfaction among users of TM. Therefore, this study aimed to estimate the agreement in the diagnosis of low back pain (LBP) between TM, systematized by a self-completed digital questionnaire, and face-to-face (FF) care in patients with LBP. METHODS This study included adults up to 75 years of age with LBP for more than 6 weeks. They were evaluated at 2 independent time points (TM and FF) by different orthopedists with 3 different levels of expertise. Professionals evaluated the sample without prior knowledge of the diagnosis, and each orthopedist provided a diagnosis. Diagnostic agreement was the primary outcome. Secondary outcomes were the duration of the visit and satisfaction among healthcare professionals. RESULTS A total of 168 participants were eligible, of whom 126 sought care through TM and 122 sought FF care (mean age, 47 years [range, 18-75 years]; 66.4% women). The agreement among professionals regarding the diagnosis was moderate (kappa = .585, P = .001). TM was faster than FF (11.9 minutes (standard deviation = 4.1) vs 18.6 (SD = 6.9), P < .001). Professional satisfaction was higher among spine specialists than among orthopedic residents and orthopedists who were not specialists in spine surgery. CONCLUSION Agreement in diagnosis was moderate for TM, with a 30% shorter visit duration than FF. Satisfaction varied by professional expertise and was higher among spine specialists than among professionals with other expertise.
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Mota Neto J, Mendes AF, Martins AFM, Landa ATD, Fraga RDO, Souza VAD, Raposo NRB. Protocol of HOTFy: randomised clinical trial to hyperbaric oxygen therapy in fibromyalgia. BMJ Open 2023; 13:e069153. [PMID: 36635033 PMCID: PMC9843185 DOI: 10.1136/bmjopen-2022-069153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
INTRODUCTION Fibromyalgia is a polysymptomatic syndrome with a prevalence between 0.2% and 13% of the population and causes work disabilities in approximately half of affected patients. Several treatments to fibromyalgia have been proposed with partial improvement. This study aims to evaluate the efficacy of hyperbaric oxygen therapy and when it should be introduced to fibromyalgia. METHODS AND ANALYSIS This is a protocol for an open-label, crossover, randomised clinical trial comparing treatment with hyperbaric oxygen therapy and standardised treatment to fibromyalgia. In the proposed study, 56 individuals with fibromyalgia will be randomised in a 1:1 ratio into a single, fixed, random block, in which one group will receive hyperbaric oxygen therapy and another will receive standard treatment. Subsequently, the groups will be crossed. Participants will be evaluated at baseline, eight and 16 weeks based on functional impairment assessed with the Fibromyalgia Impact Questionnaire-Brazilian Portuguese version, psychopathological symptoms questionnaire and short-form quality of life questionnaire. The improvement of symptoms concerning the moment of therapy used will be compared between groups. For sample size calculation, a moderate effect size, 80% power and 95% CI will be estimated, in a total of 46 patients. Considering a dropout of 20%, 56 patients should be recruited. ETHICS AND DISSEMINATION The study was approved by the Universidade Federal de Juiz de Fora Teaching Hospital ethics committee and assigned the number 53058421.9.0000.5133 (version 3). The results will be disseminated via publications in peer-reviewed journals and presentations in medical meetings. TRIAL REGISTRATION NUMBER RBR-6prps8g)/UTN U1111-1278-3224.
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Paixão TP, Silva MT, de Andrade MA, Raposo NRB, Vieira JLF. Plants from Brazil with Potential Photoprotective Activity: A Review. Pharmacogn Rev 2023. [DOI: 10.5530/097627870191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
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Junqueira LA, Tabriz AG, Rousseau F, Raposo NRB, Brandão MAF, Douroumis D. Development of printable inks for 3D printing of personalized dosage forms: Coupling of fused deposition modelling and jet dispensing. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.104108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Ferrarini EG, Paes RS, Baldasso GM, de Assis PM, Gouvêa MC, Cicco PD, Raposo NRB, Capasso R, Moreira ELG, Dutra RC. Broad-spectrum cannabis oil ameliorates reserpine-induced fibromyalgia model in mice. Biomed Pharmacother 2022; 154:113552. [PMID: 35988425 DOI: 10.1016/j.biopha.2022.113552] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 07/28/2022] [Accepted: 08/14/2022] [Indexed: 01/25/2023] Open
Abstract
Fibromyalgia (FM) is an idiopathic disorder characterized by generalized pain and associated symptoms such as depression and anxiety. Cannabis sativa shows different pharmacological activities, such as analgesic, anti-inflammatory, neuroprotective, and immunomodulatory. Associated with this, the use of an oil with low concentrations of THC can reduce the psychomimetic adverse effects of the plant. Therefore, the present study aimed to evaluate the analgesic effect of broad-spectrum cannabis oil with low THC concentration in an experimental model of FM. Mechanical hyperalgesia, thermal allodynia, depressive- and anxious-related behavior, and locomotor activity were evaluated after reserpine (0.25 mg/kg; injected subcutaneously (s.c.) once daily for three consecutive days) administration. Our results showed that oral administration of broad-spectrum cannabis oil (0.1, 1, and 3 mg/kg, p.o.) in a single dose on the 4th day inhibited mechanical hyperalgesia and thermal allodynia induced by reserpine. Relevantly, treatment during four days with broad-spectrum cannabis oil (0.1 mg/kg, p.o.) reduced mechanical hyperalgesia 1 h after reserpine administration. Intraplantar treatment with cannabis oil significantly reversed mechanical and heat thermal nociception induced by reserpine injection. Interestingly, spinal and supraspinal administration of broad-spectrum cannabis oil completely inhibited mechanical hyperalgesia and thermal sensitivity induced by reserpine. The repeated cannabis oil administration, given daily for 14 days, markedly mitigated the mechanical and thermal sensitivity during the FM model, and its reduced depressive-like behavior induced by reserpine. In summary, broad-spectrum cannabis oil is an effective alternative to reverse the reserpine-induced fibromyalgia model.
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Barczewski BF, Junqueira LDA, Raposo FJ, Brandão MAF, Raposo NRB. Aplicações da manufatura aditiva em oftalmologia. REVISTA BRASILEIRA DE OFTALMOLOGIA 2022. [DOI: 10.37039/1982.8551.20220052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Gamonal SBL, Gamonal ACC, Marques NCV, Brandão MAF, Raposo NRB. 25-Hydroxyvitamin D as a biomarker of vitamin D status in plaque psoriasis and other dermatological diseases: a cross-sectional study. SAO PAULO MED J 2022; 141:131-137. [PMID: 35976371 PMCID: PMC10005464 DOI: 10.1590/1516-3180.2022.0164.r1.19052022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 05/19/2022] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Hypovitaminosis D is a public health problem associated with several chronic inflammatory and immunological diseases, including psoriasis. OBJECTIVES This study aimed to determine the prevalence of hypovitaminosis D in patients with plaque psoriasis. A comparison was made between vitamin D levels in patients with psoriasis and those with other non-inflammatory dermatoses without photosensitivity. In addition, it evaluated the effects of the patients' Fitzpatrick skin phototype and the season of the year on the serum levels of vitamin D. DESIGN AND SETTINGS A retrospective cross-sectional study was conducted at an outpatient clinic in a university center in Juiz de Fora (MG), Brazil. METHODS A review of dermatology patients' demographic data, including skin phototype and serum levels of 25-hydroxyvitamin D [25(OH)D], over 12 months in 2016. RESULTS This study included 554 patients: 300 patients allocated to the plaque psoriasis group and 254 control patients with other dermatological diseases. Regarding the season of the year, 229, 132, 62, and 131 participants were evaluated in summer, autumn, winter, and spring, respectively. As for the skin phototype, 397, 139, and 18 patients had phototypes III, IV, and V, respectively. The serum levels of 25(OH)D were significantly lower in the psoriasis group (24.91 ± 7.16 ng/mL) than in the control group (30.37 ± 8.14 ng/mL). CONCLUSIONS Hypovitaminosis D (< 30 ng/mL) was present in 76.66% of patients with psoriasis versus 53.94% of control patients. Vitamin D deficiency (< 20 ng/mL) was observed in 25% of the patients with psoriasis versus 8.66% in the control group (P < 0.001). The season and patient's skin phototype were independent predictors of serum vitamin D levels.
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Gamonal SBL, Gamonal ACC, Marques NCV, Brandão MAF, Raposo NRB. Is vitamin D status relevant to psoriasis and psoriatic arthritis? A retrospective cross-sectional study. SAO PAULO MED J 2022; 141:e2022216. [PMID: 36214524 PMCID: PMC10065110 DOI: 10.1590/1516-3180.2022.0216.r1.01072022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Accepted: 07/01/2022] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Psoriasis is a systemic, immune-mediated disease characterized by inflammatory manifestations in the skin and joints. Vitamin D deficiency is currently considered a pandemic and is associated with comorbidities including psoriasis and psoriatic arthritis (PsA). OBJECTIVES To determine the prevalence of hypovitaminosis D [25(OH)D] in patients with plaque psoriasis, with and without PsA, and of independent predictors of serum 25(OH)D levels. DESIGN AND SETTING Retrospective cross-sectional study conducted among 300 patients at an outpatient clinic in a university center in Juiz de Fora, Minas Gerais, Brazil. METHODS Demographic and clinical data (psoriasis area and severity index [PASI], family history, age at onset, disease duration, and the presence of PsA according to Classification Criteria for Psoriatic Arthritis), skin phototype, and season of the year were reviewed. RESULTS Hypovitaminosis D (< 30 ng/mL) was highly prevalent in patients with psoriasis with and without PsA (82.2% and 74.9%, respectively). An inverse correlation between PASI and vitamin D was found (without PsA r = -0.59 and, PsA r = -0.52, P < 0.001), and multivariate regression revealed that hypovitaminosis D was associated with disease severity, season, and phototype. It was confirmed by binary logistic regression between PASI and vitamin D deficiency (< 30 ng/mL), (odds ratio, OR 1.78 CI: -0.20-0.53, P < 0.001). CONCLUSION Hypovitaminosis D (< 30 ng/mL) was highly prevalent in psoriatic patients with and without PsA. Season and skin phototype were associated with 25(OH)D levels. An inverse association between PASI and serum 25(OH)D levels was established.
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Costa MA, Freire ÉS, Andrade MCV, Silva MR, Castañon MCMN, Raposo NRB. Microneedling and epidermal growth factor (EGF) as strategies for the acne scars. SURGICAL & COSMETIC DERMATOLOGY 2022. [DOI: 10.5935/scd1984-8773.2022140068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Lataliza AAB, de Assis PM, da Rocha Laurindo L, Gonçalves ECD, Raposo NRB, Dutra RC. Antidepressant-like effect of rosmarinic acid during LPS-induced neuroinflammatory model: The potential role of cannabinoid receptors/PPAR-γ signaling pathway. Phytother Res 2021; 35:6974-6989. [PMID: 34709695 DOI: 10.1002/ptr.7318] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 09/17/2021] [Accepted: 10/13/2021] [Indexed: 01/03/2023]
Abstract
Rosmarinic acid (RA), an ester of caffeic acid and 3, 4-dihydroxyphenyllactic acid, has anti-inflammatory and neuroprotective activities. Herein, this study investigated in silico the drug-likeness and the potential molecular targets to RA. Moreover, it tested the antidepressant-like potential of RA in the lipopolysaccharide (LPS)-induced depression model. RA (MW = 360.31 g/mol) meets the criteria of both Lipinski's rule of five and the Ghose filter. It also attends to relevant pharmacokinetic parameters. Target prediction analysis identified RA's potential targets and biological activities, including the peroxisome proliferator-activated receptor (PPAR) and the cannabinoid receptors CB1 and CB2 . In vivo, RA's acute, repetitive, and therapeutic administration showed antidepressant-like effect since it significantly reduced the immobility time in the tail suspension test and increased grooming time in the splash test. Further, the pretreatment with antagonists of CB1 , CB2 , and PPAR-γ receptors significantly blocked the antidepressant-like effect of RA. Altogether, our findings suggest that cannabinoid receptors/PPAR-γ signaling pathways are involved with the antidepressant-like effect of RA. Moreover, this molecule meets important physicochemical and pharmacokinetic parameters that favor its bioavailability. RA constitutes a promising, innovative, and safe molecule for the pharmacotherapy of major depressive disorder.
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de Assis PM, Ferrarini EG, Baldasso GM, Paes RS, Gouvêa MC, Segundo CEN, Borrelli F, Brandão MAF, Capasso R, Dutra RC, Raposo NRB. Broad-spectrum Cannabis oil alleviates behavioral symptoms associated with stress-related anxiety and depression in mice. PHARMACEUTICAL SCIENCES 2021. [DOI: 10.34172/ps.2021.59] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Background: Posttraumatic stress disorder (PTSD) is a psychiatric condition that manifests through a broad range of symptoms and shares several phenotypes with anxiety and depression. Refractory PTSD affects 10 – 30% of the patients and highlights the need for alternative pharmacotherapy. The suggested involvement of the endocannabinoid system (ECS) with the emotional processes has enlightened the use of Cannabis sp. Then, this study aimed to evaluate the therapeutic effects of a broad-spectrum Cannabis oil on anxiety- and depressive-like behaviors triggered by stressors from combined nature. In addition, this study investigated the effect of the oil on central cannabinoid receptor 1 and serum levels of cytokines, chemokines, and growth factors. Methods: Mice were randomized into five groups (vehicle; Cannabis oil; fluoxetine; single oral dose) and submitted to acute restraint and chronic unpredictable stress. Then, they were behaviorally assessed in the elevated plus-maze test (EPMT), forced swimming test (FST), splash test (ST), and open field test (OFT). The tetrad cannabinoid assay evaluated the central effect of the oil. Serum biomarkers levels were measured by a multiplex bead-based assay. Results: Cannabis oil (0.1 mg/kg, p.o.) significantly reduced the anxiety-like behavior in EPMT in the acute restraint stress model (p < 0.05) as compared to vehicle. Moreover, compared to the vehicle, Cannabis oil significantly reverted the despair and anhedonic-like behaviors in FST (p < 0.05) and ST (p < 0.05), respectively, in chronically stressed mice. Yet, compared to vehicle, therapy with Cannabis oil did not induce cannabinoid-tetrad (p < 0.0001); downregulated granulocyte-macrophage colony-stimulating factor (GM-CSF; p < 0.01) and advanced glycation end-products (RAGE; p < 0.0001); and upregulated vascular endothelial growth factor (VEGF; p < 0.01) serum levels. Conclusion: Altogether, our data suggest the potential of the broad-spectrum Cannabis oil to improve symptoms related to anxiety and depression caused by traumatic events.
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Gamonal SBL, Gamonal ACC, Brandão MAF, Junqueira LA, de Assis PM, Raposo NRB. Prevalence of psoriatic arthritis among patients with plaque psoriasis: a Brazilian retrospective study. SAO PAULO MED J 2021; 139:476-480. [PMID: 34378736 PMCID: PMC9632524 DOI: 10.1590/1516-3180.2020.0629.16032021] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 03/16/2021] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Psoriatic arthritis is the most frequent and impactful comorbidity among psoriatic patients and appears in most cases after skin disease. Dermatologists play a key role in its early diagnosis and treatment. OBJECTIVE To determine the prevalence of psoriatic arthritis and associated variables among patients with plaque psoriasis seen at a reference center for treating psoriasis. DESIGN AND SETTING Retrospective cross-sectional study conducted among 300 patients at an outpatient clinic in a university center in Juiz de Fora, MG, Brazil. METHODS Standardized records of 300 patients with plaque psoriasis were examined. Demographic data and medical variables relating to psoriasis (Psoriasis Area and Severity Index (PASI), family history, age at onset and disease progression) and psoriasis arthritis (CASPAR criteria) were evaluated. Laboratory and radiographic tests in the medical records were reviewed. RESULTS Seventy-three (24.3%) of these 300 patients with plaque psoriasis had psoriatic arthritis. Asymmetric oligoarthritis (58.9%) was the most common clinical form, followed by polyarthritis (20.5%), distal interphalangeal arthritis (15.2%) and spondyloarthritis (5.4%). Dactylitis was present in 21.9% and enthesitis in 35.6% of patients. Compared with patients without arthritis, patients with arthritis had higher average age, higher frequency of positive family history of psoriasis, longer duration of evolution and higher PASI rates. CONCLUSION Psoriatic arthritis is often underdiagnosed. Since dermatologists perform the initial approach, these professionals need to be trained to diagnose this comorbidity and treat it, together with rheumatologists.
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Silva LM, Marconato DG, Nascimento da Silva MP, Barbosa Raposo NR, Faria Silva Facchini GD, Macedo GC, Teixeira FDS, Barbosa da Silveira Salvadori MC, Faria Pinto PD, Moraes JD, Pittella F, Da Silva Filho AA. Licochalcone A-loaded solid lipid nanoparticles improve antischistosomal activity in vitro and in vivo. Nanomedicine (Lond) 2021; 16:1641-1655. [PMID: 34256609 DOI: 10.2217/nnm-2021-0146] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Aim: To isolate licochalcone A (LicoA) from licorice, prepare LicoA-loaded solid lipid nanoparticles (L-SLNs) and evaluate the L-SLNs in vitro and in vivo against Schistosoma mansoni. Materials & methods: LicoA was obtained by chromatographic fractionation and encapsulated in SLNs by a modified high shear homogenization method. Results: L-SLNs showed high encapsulation efficiency, with satisfactory particle size, polydispersity index and Zeta potential. Transmission electron microscopy revealed that L-SLNs were rounded and homogenously distributed. Toxicity studies revealed that SLNs decreased the hemolytic and cytotoxic properties of LicoA. Treatment with L-SLNs showed in vivo efficacy against S. mansoni. Conclusion: L-SLNs are efficient in reducing worm burden and SLNs may be a promising delivery system for LicoA to treat S. mansoni infections.
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Maranduba CP, Souza GT, do Carmo AMR, de Campos JMS, Raposo NRB, de Olivera Santos M, da Costa Maranduba CM, de Sá Silva F. Effects of resveratrol on the proliferation and osteogenic differentiation of deciduous dental pulp stem cells from neurofibromatosis type 1 patient. Childs Nerv Syst 2021; 37:1095-1101. [PMID: 33216171 DOI: 10.1007/s00381-020-04968-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 11/06/2020] [Indexed: 10/23/2022]
Abstract
PURPOSE We aimed at verifying whether resveratrol can decrease cell proliferation and change osteogenic differentiation of cells obtained from patients with type 1 neurofibromatosis (NF1). METHODS Deciduous dental pulp derived stem cells were isolated from NF1 patient and healthy volunteer. These cells were subjected to increasing concentrations of resveratrol and evaluated for proliferation and mineralization of osteogenic differentiation. RESULTS The results showed that resveratrol reduced the difference in proliferation between CNT and NF1 cells in a dose-dependent manner and this property was more prominent in affected cells than in healthy cells. Resveratrol showed no statistically significant changes in mineralization in osteogenic differentiation of NF1 cells, at low doses tested. CONCLUSIONS In conclusion, in a dose-dependent manner, resveratrol displays interesting properties that could be applied in a possible treatment aimed at decreasing cellular proliferation in neurofibromatosis. Furthermore, it is selective concerning healthy cells and not affecting cell differentiation. Further research to cell selectivity, differentiation to other tissue types, and cell cytotoxicity are needed.
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Silva MNE, Ramos PM, Raposo NRB. Comparison of the hair shafts count between a manual and a customized method. Skin Res Technol 2020; 26:949-950. [PMID: 32227381 DOI: 10.1111/srt.12869] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Accepted: 02/29/2020] [Indexed: 11/30/2022]
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Viana PCS, Mendes ACDM, Delgado LF, Tostes G, Gonçalves L, Gonçalves Júnior H, Raposo NRB, Vitral GSF, Gerheim PSAS. Association between Single Nucleotide Polymorphisms and Endometriosis in a Brazilian Population. REVISTA BRASILEIRA DE GINECOLOGIA E OBSTETRÍCIA 2020; 42:146-151. [PMID: 32232822 PMCID: PMC10798272 DOI: 10.1055/s-0040-1708460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Accepted: 01/21/2020] [Indexed: 10/24/2022] Open
Abstract
OBJECTIVE To investigate the association between genetic polymorphisms in candidate genes or candidate regions and the development of endometriosis in Brazilian women. METHODS A total of 30 women between 25 and 64 years old with a diagnosis of endometriosis participated in the present study, as well as 30 matched control women from the same age group, asymptomatic and without family history of the disease. The patients genotypic and allelic frequencies of polymorphisms in the GREB1 gene (rs13394619) and in the intergenic region at position 7p15.2 (rs12700667) were analyzed and compared. RESULTS There was no significant difference in the frequency of genotypes for the A > G polymorphism (rs13394619) in the GREB1 gene between the two groups. However, the distribution frequencies of the genotypes for the A > G polymorphism (rs12700667) in an intergenic region on chromosome 7 were different for control patients and for patients with endometriosis, with higher frequency of the AG genotype compared to the GG between patients with the disease (odds ratio [OR] = 3.49; confidence interval [CI] = 1.47-8.26). CONCLUSION The present study suggests that the polymorphism in the intergenic region of chromosome 7 is associated with the risk of developing endometriosis in a population of Brazilian women from Juiz de Fora.
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Polonini H, Mesquita D, Lanine J, Dijkers E, Gkinis S, Raposo NRB, Brandão MAF, Ferreira ADO. Intranasal use of lavender and fennel decreases salivary cortisol levels and improves quality of sleep: A double-blind randomized clinical trial. Eur J Integr Med 2020. [DOI: 10.1016/j.eujim.2019.101015] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Kegele CS, Oliveira J, Magrani T, Ferreira A, de Souza Ferreira R, Sabbaghi A, de Oliveira Ferreira A, Brandão MAF, Raposo NRB, Polonini HC. A randomized trial on the effects of CitrusiM® (Citrus sinensis (L.) Osbeck dried extract) on body composition. CLINICAL NUTRITION EXPERIMENTAL 2019. [DOI: 10.1016/j.yclnex.2019.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Mendonça de Assis P, Cypriano Dutra R, Amarante CBD, Afonso Miranda Chaves MDG, Moreira CPDS, Brandão MAF, Raposo NRB. Plinia cauliflora (Mart.) Kausel: toxicological assays, biological activities, and elemental analysis of organic compounds. Nat Prod Res 2019; 35:1727-1731. [PMID: 31242771 DOI: 10.1080/14786419.2019.1633642] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Jaboticaba, Plinia cauliflora (Mart.) Kausel, is a Brazilian berry traditionally used in folk medicine as treatment for some health conditions. Phenolic compounds such as flavonoids and anthocyanins have previously been detected in the fruit. This current study aimed to evaluate the toxicological effects of jaboticaba peel extract (JPE) on Artemia salina, L929, and MDA-MB-231 cell lines. Besides, JPE antioxidant, acetylcholinesterase, and antifungal activities, and elemental analysis CHNS were also tested. JPE had moderate toxicity (LD50 = 360.92 μg mL-1) on A. salina, non-toxic effect on L929 cell line, and decreased the viability of cancer cell line MDA at 1,000 µg mL-1 and 500 µg mL-1 concentrations. The antioxidant activity toward 2,2-diphenyl-1-picrylhydrazyl (DPPH) performed IC50 = 37.45 ± 0.17 µg mL-1, whereas 45.7% of acetylcholinesterase activity was inhibited. By its elemental composition, JPE is an alternative food supplement and dermocosmetic component. Antifungal potential toward Candida strains was not observed.
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Polonini HC, Ferreira AO, Brandão MAF, Raposo NRB. Topical monomethylsilanetriol can deliver silicon to the viable skin. Int J Cosmet Sci 2019; 41:405-409. [PMID: 31230363 DOI: 10.1111/ics.12552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 06/17/2019] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Organic silicon has been linked to positive effects on the skin rejuvenation, mainly by the oral route. Thus, the main objective of the present study was to assess whether monomethylsilanetriol (MMST, a source of organic silicon) can deliver silicon to the epidermis and dermis, when applied topically in a cream. Once the hypothesis was confirmed, the present study also evaluated whether the product was toxic to keratinocytes; additionally, its possible antioxidant activity was assessed. METHODS The ex vivo skin permeation profile was determined using human skin in Franz-cells equipment; cytotoxicity was assessed using HaCaT keratinocytes. Antioxidant capacity was determined as scavenging activity, measured according to the 1,1-diphenyl-2-picrylhydrazil free radical method. RESULTS The permeation percentage was almost 60% of the applied MMST, with a large quantity of drug found in the viable epidermis and dermis. The cell viability assay showed no significant difference in the percentage of viable keratinocytes among the treated groups at the doses used. In terms of antioxidant activity, the IC50 value obtained was 2400 μg mL-1 . Low antioxidant activity, negligible toxicity for keratinocytes and a significant percentage of permeation were observed. CONCLUSION We provide evidence that MMST applied topically can deliver silicon to the skin in biorelevant levels for cosmetic purposes.
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Apolinário RDS, Chaves MDGAM, Gonçalves HRM, Martins ICF, De Paula RM, Granato APA, Polonini HC, Brandão MAF, Ferreira ADO, Raposo NRB. Compounded Orodispersible Films with Natural Ingredients for Halitosis: A Clinical Experience. INTERNATIONAL JOURNAL OF PHARMACEUTICAL COMPOUNDING 2018; 22:512-515. [PMID: 30384352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Halitosis can be described as unpleasant odors emanating from the oral cavity. It is usually associated with decomposition action of bacteria present mainly on the back of the tongue and periodontal pockets, and able to produce volatile sulfur compounds. We conducted a study at the Faculty of Dentistry, Federal University of Juiz de Fora and evaluated the therapeutic effect of two natural extracts, Camellia sinensis (green tea) and resveratrol in the form of oral polymer films, to control halitosis. Fifty volunteers (students of health courses) participated in the research after orientation and signing the informed consent form. The anamnesis was made by researchers. The physical examination was made to verify the inclusion criteria. Each participant received 45 polymeric films to be consumed in 15 days (3 films per day). Measurements of the volatile sulfur compound levels were performed using a halimeter in two stages: 1) before use and 2) 15 days after the first administration. Results showed a statistically significant reduction in volatile sulfur compound levels in 71.79% of the volunteers. We concluded that the compounded orodispersible films containing green tea and resveratrol demonstrated excellent results in reducing halitosis.
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Cóser I, Brandão MAF, Raposo NRB, Gonçalves E. [Determinants of patents in the life sciences and health sciences at federal universities in Minas Gerais State, Brazil: an analysis of panel data for 1995-2016]. CAD SAUDE PUBLICA 2018; 34:e00097517. [PMID: 29952400 DOI: 10.1590/0102-311x00097517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Accepted: 12/18/2017] [Indexed: 11/22/2022] Open
Abstract
In the 1990s, the development of microelectronics and communication technologies spawned the information technology paradigm, characterized by an intensity of information which, transformed into knowledge and innovation, plays a crucial role for development. In order for this to occur, countries need to build appropriate institutional arrangements. This led to the Triple Helix model for systems innovation, which views innovation and technical progress in a Knowledge Economy as the result of a complex set of relations between universities, companies, and government. In this context, the current study aims to identify the impact of knowledge production and public policies for the production of patent applications by life sciences and health sciences researchers affiliated with federal universities in the State of Minas Gerais, Brazil. The analysis covered the years 1995 to 2016 and used econometric techniques in panel data. According to the findings, educational factors (thesis supervision), economic factors (technological products and the provision of technological services), and political factors (legal framework, financial resources, and incentive policies) impact the production of patent applications by the selected researchers. The results reveal efforts by government, although incipient, in the attempt to promote a technological leap.
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Martins ICF, Fagundes MR, Mockdeci HR, Amarante CBD, Chaves MDGAM, Raposo NRB. Ex vivo Evaluation of the Erosive Effect of Acid Tea Widely Consumed in Brazil. J Clin Diagn Res 2018. [DOI: 10.7860/jcdr/2018/29966.11340] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Ferreira AO, Brandão MAF, Raposo FJ, Polonini HC, Raposo NRB. Orodispersible Films for Compounding Pharmacies. INTERNATIONAL JOURNAL OF PHARMACEUTICAL COMPOUNDING 2017; 21:454-461. [PMID: 29220334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Orodispersible film can be defined as a solid pharmaceutical form intended for the delivery and rapid local or systemic release of active ingredients, consisting of a water-soluble polymer film that hydrates rapidly, adhering and dissolving immediately when placed on the tongue or in the oral cavity (oral, palatal, gingival, lingual, or sublingual), without the need for water administration or mastication. Due to its outstanding importance in cases of emergency, practicality of use by patients in transit, and high adherence, orodispersible film has evolved in popularity and success among consumers. It is a promising dosage form for compounding pharmacies, as simpler technologies are being developed to make the compound process easier and faster for the pharmacist. This article aims to explore some of the basics on orodispersible film and the main possible preparations to be developed in compounding pharmacies worldwide.
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