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1.
Curr Res Neurobiol ; 4: 100068, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36589675

RESUMO

Insulin-like growth factor-1 (IGF-1) plays critical roles in the development of the central nervous system (CNS), including the retina, regulating cell proliferation, differentiation, and survival. Here, we investigated the role of IGF-1 on retinal cell proliferation using primary cultures from rat neural retina. Our data show that IGF-1 stimulates retinal cell proliferation and regulates the expression of neurotrophic factors, such as interleukin-4 and brain-derived neurotrophic factor. In addition, our results indicates that IGF-1-induced retinal cell proliferation requires activation of multiple signaling pathways, including phosphatidylinositol 3-kinase, protein kinase Src, phospholipase-C, protein kinase C delta, and mitogen-activated protein kinase pathways. We further show that activation of matrix metalloproteinases and epidermal growth factor receptor is also necessary for IGF-1 enhancing retinal cell proliferation. Overall, these results unveil potential mechanisms by which IGF-1 ensures retinal cell proliferation and support the notion that manipulation of IGF-1 signaling may be beneficial in CNS disorders associated with abnormal cell proliferation.

2.
Rheumatol Int ; 43(3): 495-502, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36214864

RESUMO

Early and effective discrimination (triage) of patients with inflammatory rheumatic diseases (IRD) and other diseases (non-IRD) is essential for successful treatment and preventing damage. The aim of this study was to investigate diagnostic delays and pre-diagnosis treatment in patients newly presenting to rheumatology outpatient clinics. A total of 600 patients newly presenting to one university hospital and two non-academic centers were included. Time from onset of symptoms to rheumatology consultation "total delay" as well as medical treatment before consultation were recorded. Median time from symptom onset to rheumatologist appointment (total delay) was 30 weeks. Median time to online search, first physician appointment request and first physician appointment was 2, 4 and 5 weeks, respectively. Total delay was significantly shorter for IRD patients compared to non-IRD patients, 26 vs 35 weeks (p = 0.007). Only 17.7% of all patients and 22.9% of IRD patients had a delay of less than 12 weeks. Total delay was significantly lower in patients seen in non-academic centers compared to the university center, 20 vs 50 weeks (p < 0.0001). 32.2% of IRD patients received medical treatment that eased their symptoms prior to the rheumatology appointment. These findings highlight the persistent diagnostic delays in rheumatology; however, they also suggest that current triage strategies effectively lead to earlier appointments for IRD patients. Improvement of triage methods and pre-diagnosis treatment could decrease overall burden of disease in IRD patients.


Assuntos
Doenças Reumáticas , Reumatologia , Humanos , Diagnóstico Tardio , Doenças Reumáticas/diagnóstico , Reumatologistas , Encaminhamento e Consulta
3.
Cancers (Basel) ; 14(24)2022 Dec 14.
Artigo em Inglês | MEDLINE | ID: mdl-36551653

RESUMO

Anaplastic thyroid carcinoma (ATC) is a rare, but aggressive, carcinoma derived from follicular cells. While conventional treatments may improve patients' survival, the lethality remains high. Therefore, there is an urgent need for more effective ATC treatments. Cardiotonic steroids, such as ouabain, have been shown to have therapeutic potential in cancer treatment. Thus, we aimed to evaluate ouabain's effects in human anaplastic thyroid cells. For this, 8505C cells were cultured in the presence or absence of ouabain. Viability, cell death, cell cycle, colony formation and migratory ability were evaluated in ouabain-treated and control 8505C cells. The expression of differentiation and epithelial-to-mesenchymal transition (EMT) markers, as well as IL-6, TGFb1 and their respective receptors were also quantified in these same cells. Our results showed that ouabain in vitro decreased the number of viable 8505C cells, possibly due to an inhibition of proliferation. A reduction in migration was also observed in ouabain-treated 8505C cells. In contrast, decreased mRNA levels of PAX8 and TTF1 differentiation markers and increased levels of the N-cadherin EMT marker, as well as IL-6 and TGFb1, were found in ouabain-treated 8505C cells. In short, ouabain may have anti-proliferative and anti-migratory effect on 8505C cells, but maintains an aggressive and undifferentiated profile.

4.
Mol Cell Neurosci ; 123: 103780, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-36108809

RESUMO

In the developing retina, precise coordination of cell proliferation, differentiation, and survival is essential for proper retinal maturation and function. We have previously reported evidence that interleukin-4 (IL-4) plays critical roles in neuronal differentiation and survival during retinal development. However, little is known about the role of IL-4 on retinal cell proliferation. In the current study, we investigated if IL-4 regulates cell proliferation induced by epidermal growth factor (EGF) and by fibroblast growth factor 2 (FGF2) in primary retinal cell cultures obtained from newborn rats. First, we show that EGF and FGF2 act as mitogens for glial cells, increasing proliferation of these cells in the retina. EGF- and FGF2-induced mitogenesis requires activation of distinct cell-intrinsic signals. In retinal cells exposed to FGF2, IL-4 downregulates p53 levels (a protein whose activation induces cell-cycle arrest) and increases mitogenic responsiveness to FGF2 through activation of protein kinase A (PKA) pathway. Conversely, in retinal cells exposed to EGF, IL-4 downregulates cyclin D1 levels (a protein required for cell-cycle progression), upregulates p53 levels, and decreases mitogenic responsiveness to EGF. The inhibitory effect induced by IL-4 on retinal cells exposed to EGF requires activation of Janus kinase 3 (JAK3), but not activation of PKA. Based on previous and current findings, we propose that IL-4 serves as a node of signal divergence, modulating multiple cell-intrinsic signals (e.g., cyclin D1, p53, JAK3, and PKA) and mitogenic responsiveness to cell-extrinsic signals (e.g., FGF2 and EGF) to control cell proliferation, differentiation, and survival during retinal development.


Assuntos
Ciclina D1 , Fator de Crescimento Epidérmico , Ratos , Animais , Ciclina D1/metabolismo , Fator de Crescimento Epidérmico/farmacologia , Fator de Crescimento Epidérmico/metabolismo , Interleucina-4/farmacologia , Interleucina-4/metabolismo , Fator 2 de Crescimento de Fibroblastos/farmacologia , Proteína Supressora de Tumor p53 , Proliferação de Células , Retina/metabolismo
5.
Front Hum Neurosci ; 16: 782205, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35634202

RESUMO

One of the effects of the current COVID-19 pandemic is that low-income countries were pushed further into extreme poverty, exacerbating social inequalities and increasing susceptibility to drug use/abuse in people of all ages. The risks of drug abuse may not be fully understood by all members of society, partly because of the taboo nature of the subject, and partly because of the considerable gap between scientific production/understanding and communication of such knowledge to the public at large. Drug use is a major challenge to social development and a leading cause of school dropout rates worldwide. Some public policies adopted in several countries in recent decades failed to prevent drug use, especially because they focused on imposing combative or coercive measures, investing little or nothing in education and prevention. Here we highlight the role of neuroscience education as a valid approach in drug use education and prevention. We propose building a bridge between schools and scientists by promoting information, student engagement and honest dialogue, and show evidence that public policy regulators should be persuaded to support such science-based education programs in their efforts to effect important positive changes in society.

6.
Neurochem Res ; 47(3): 723-738, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-34783975

RESUMO

Ouabain is a classic Na+K+ATPase ligand and it has been described to have neuroprotective effects on neurons and glial cells at nanomolar concentrations. In the present work, the neuroprotective and immunomodulatory potential of ouabain was evaluated in neonatal rat retinal cells using an optic nerve axotomy model in vitro. After axotomy, cultured retinal cells were treated with ouabain (3 nM) at different periods. The levels of important inflammatory receptors in the retina such as TNFR1/2, TLR4, and CD14 were analyzed. We observed that TNFR1, TLR4, and CD14 were decreased in all tested periods (15 min, 45 min, 24 h, and 48 h). On the other hand, TNFR2 was increased after 24 h, suggesting an anti-inflammatory potential for ouabain. Moreover, we showed that ouabain also decreased Iba-1 (microglial marker) density. Subsequently, analyses of retrograde labeling of retinal ganglion cells (RGC) were performed after 48 h and showed that ouabain-induced RGC survival depends on autophagy. Using an autophagy inhibitor (3-methyladenine), we observed a complete blockage of the ouabain effect. Western blot analyses showed that ouabain increases the levels of autophagy proteins (LC3 and Beclin-1) coupled to p-CREB transcription factor and leads to autophagosome formation. Additionally, we found that the ratio of cleaved/pro-caspase-3 did not change after ouabain treatment; however, p-JNK density was enhanced. Also, ouabain decreased reactive oxygen species production immediately after axotomy. Taken together, our results suggest that ouabain controls neuroinflammation in the retina following optic nerve axotomy and promotes RGC neuroprotection through activation of the autophagy pathway.


Assuntos
Adenosina Trifosfatases , Ouabaína , Adenosina Trifosfatases/metabolismo , Adenosina Trifosfatases/farmacologia , Animais , Autofagia/fisiologia , Axotomia , Sobrevivência Celular , Doenças Neuroinflamatórias , Nervo Óptico/fisiologia , Ouabaína/metabolismo , Ouabaína/farmacologia , Ratos , Espécies Reativas de Oxigênio/metabolismo , Retina/metabolismo
7.
Neurosci Lett ; 763: 136197, 2021 10 15.
Artigo em Inglês | MEDLINE | ID: mdl-34437989

RESUMO

An insult can trigger a protective response or even cell death depending on different factors that include the duration and magnitude of the event and the ability of the cell to activate protective intracellular signals, including inflammatory cytokines. Our previous work showed that the treatment of Lister Hooded rat retinal cell cultures with 50 ng/mL phorbol 12-myristate 13-acetate (PMA), a protein kinase C activator, increases the survival of retinal ganglion cells (RGCs) kept in culture for 48 h after axotomy. Here we aim to analyze how PMA modulates the levels of TNF-α and IL-1ß (both key inflammatory mediators) and the impact of this modulation on RGCs survival. We hypothesize that the increase in RGCs survival mediated by PMA treatment depends upon modulation of the levels of IL-1ß and TNF-α. The effect of PMA treatment was assayed on cell viability, caspase 3 activation, TNF-α and IL-1ß release and TNF receptor type I (TNFRI) and TNF receptor type II (TNFRII) levels. PMA treatment increases IL-1ß and TNF-α levels in 15 min in culture and increases the release of both cytokines after 30 min and 24 h, respectively. Both IL-1ß and TNF-α levels decrease after 48 h of PMA treatment. PMA treatment also induces an increase in TNFRII levels while decreasing TNFRI after 24 h. PMA also inhibited caspase-3 activation, and decreased ROS production and EthD-1/calcein ratio in retinal cell cultures leading to an increase in cell viability. The neutralization of IL-1ß (anti-IL1ß 0,1ng/mL), the neutralization of TNF-α (anti-TNF-α 0,1ng/mL) and the TNF-α inhibition using a recombinant soluble TNFRII abolished PMA effect on RGCs survival. These data suggest that PMA treatment induces IL1ß and TNF-α release and modulation of TNFRI/TNFRII expression promoting RGCs survival after axotomy.


Assuntos
Proteína Quinase C/metabolismo , Células Ganglionares da Retina/efeitos dos fármacos , Acetato de Tetradecanoilforbol/farmacologia , Fator de Necrose Tumoral alfa/metabolismo , Animais , Animais Recém-Nascidos , Axotomia/efeitos adversos , Sobrevivência Celular/efeitos dos fármacos , Células Cultivadas , Feminino , Interleucina-1beta/metabolismo , Masculino , Cultura Primária de Células , Ratos , Receptores Tipo I de Fatores de Necrose Tumoral/metabolismo , Receptores Tipo II do Fator de Necrose Tumoral/metabolismo , Células Ganglionares da Retina/metabolismo , Inibidores do Fator de Necrose Tumoral/farmacologia , Fator de Necrose Tumoral alfa/antagonistas & inibidores
8.
Neurochem Res ; 46(7): 1701-1716, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-33792824

RESUMO

Interleukin-2 (IL-2) is a classical pro-inflammatory cytokine known to display neuroprotective roles in the central nervous system including the retina. In the present study, we investigate the molecular targets involved in the neurotrophic effect of IL-2 on retinal ganglion cells (RGC) after optic nerve axotomy. Analysis of retrograde labeling of RGC showed that common cell survival mediators, as Trk receptors, Src, PI3K, PKC, and intracellular calcium do not mediate the neurotrophic effect of IL-2 on RGC. No involvement of MAPK p38 was also observed. However, other MAPKs as MEK and JNK appear to be mediating this IL-2 effect. Our data also indicate that JAK2/3 are important intracellular proteins for the IL-2 effect. Interestingly, we demonstrate that the IL-2 effect depends on dopamine D1 receptors (D1R), the cAMP/PKA pathway, interleukin-10 (IL-10), and NF-κB, suggesting that RGC survival induced by IL-2 encompasses a molecular network of major complexity. In addition, treatment of retinal cells with recombinant IL-10 or 6-Cl-pb (D1R full agonist) was able to increase RGC survival similar to IL-2. Taken together, our results suggest that after optic nerve axotomy, the increase in RGC survival triggered by IL-2 is mediated by IL-10 and D1R along with the intracellular pathways of MAPKs, JAK/STAT, and cAMP/PKA.


Assuntos
Sobrevivência Celular/efeitos dos fármacos , Interleucina-10/metabolismo , Interleucina-2/farmacologia , Sistema de Sinalização das MAP Quinases/efeitos dos fármacos , Receptores de Dopamina D1/metabolismo , Células Ganglionares da Retina/efeitos dos fármacos , Animais , Animais Recém-Nascidos , Axotomia , Células Cultivadas , Feminino , Masculino , NF-kappa B/metabolismo , Fatores de Crescimento Neural/farmacologia , Nervo Óptico/cirurgia , Ratos , Células Ganglionares da Retina/metabolismo
9.
Arthritis Res Ther ; 23(1): 112, 2021 04 13.
Artigo em Inglês | MEDLINE | ID: mdl-33849654

RESUMO

BACKGROUND: Timely diagnosis and treatment are essential in the effective management of inflammatory rheumatic diseases (IRDs). Symptom checkers (SCs) promise to accelerate diagnosis, reduce misdiagnoses, and guide patients more effectively through the health care system. Although SCs are increasingly used, there exists little supporting evidence. OBJECTIVE: To assess the diagnostic accuracy, patient-perceived usability, and acceptance of two SCs: (1) Ada and (2) Rheport. METHODS: Patients newly presenting to a German secondary rheumatology outpatient clinic were randomly assigned in a 1:1 ratio to complete Ada or Rheport and consecutively the respective other SCs in a prospective non-blinded controlled randomized crossover trial. The primary outcome was the accuracy of the SCs regarding the diagnosis of an IRD compared to the physicians' diagnosis as the gold standard. The secondary outcomes were patient-perceived usability, acceptance, and time to complete the SC. RESULTS: In this interim analysis, the first 164 patients who completed the study were analyzed. 32.9% (54/164) of the study subjects were diagnosed with an IRD. Rheport showed a sensitivity of 53.7% and a specificity of 51.8% for IRDs. Ada's top 1 (D1) and top 5 disease suggestions (D5) showed a sensitivity of 42.6% and 53.7% and a specificity of 63.6% and 54.5% concerning IRDs, respectively. The correct diagnosis of the IRD patients was within the Ada D1 and D5 suggestions in 16.7% (9/54) and 25.9% (14/54), respectively. The median System Usability Scale (SUS) score of Ada and Rheport was 75.0/100 and 77.5/100, respectively. The median completion time for both Ada and Rheport was 7.0 and 8.5 min, respectively. Sixty-four percent and 67.1% would recommend using Ada and Rheport to friends and other patients, respectively. CONCLUSIONS: While SCs are well accepted among patients, their diagnostic accuracy is limited to date. TRIAL REGISTRATION: DRKS.de, DRKS00017642 . Registered on 23 July 2019.


Assuntos
Reumatologia , Estudos Cross-Over , Humanos , Estudos Prospectivos
10.
Neuroimmunomodulation ; 28(1): 1-21, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33910207

RESUMO

Coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome-related coronavirus 2 (SARS-CoV-2) has devastating effects on the population worldwide. Given this scenario, the extent of the impact of the disease on more vulnerable individuals, such as pregnant women, is of great concern. Although pregnancy may be a risk factor in respiratory virus infections, there are no considerable differences regarding COVID-19 severity observed between pregnant and nonpregnant women. In these circumstances, an emergent concern is the possibility of neurodevelopmental and neuropsychiatric harm for the offspring of infected mothers. Currently, there is no stronger evidence indicating vertical transmission of SARS-CoV-2; however, the exacerbated inflammatory response observed in the disease could lead to several impairments in the offspring's brain. Furthermore, in the face of historical knowledge on possible long-term consequences for the progeny's brain after infection by viruses, we must consider that this might be another deleterious facet of COVID-19. In light of neuroimmune interactions at the maternal-fetal interface, we review here the possible harmful outcomes to the offspring brains of mothers infected by SARS-CoV-2.


Assuntos
COVID-19/imunologia , Transtornos do Neurodesenvolvimento/fisiopatologia , Neuroimunomodulação/imunologia , Complicações Infecciosas na Gravidez/imunologia , Efeitos Tardios da Exposição Pré-Natal/fisiopatologia , COVID-19/metabolismo , COVID-19/fisiopatologia , Síndrome da Liberação de Citocina/imunologia , Decídua/imunologia , Feminino , Humanos , Tolerância Imunológica/imunologia , Transmissão Vertical de Doenças Infecciosas , Neuroimunomodulação/fisiologia , Placenta/imunologia , Gravidez , Complicações Infecciosas na Gravidez/metabolismo , Complicações Infecciosas na Gravidez/fisiopatologia , SARS-CoV-2 , Cordão Umbilical/imunologia
11.
Artigo em Inglês | MEDLINE | ID: mdl-33186638

RESUMO

Since the Coronavirus disease 2019 (COVID-19) pandemic, caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) was announced, we had an unprecedented change in the way we organize ourselves socially and in our daily routine. Children and adolescents were also greatly impacted by the abrupt withdrawal from school, social life and outdoor activities. Some of them also experienced domestic violence growing. The stress they are subjected to directly impacts their mental health on account of increased anxiety, changes in their diets and in school dynamics, fear or even failing to scale the problem. Our aim is to bring up a discussion under different aspects and to alert public health and government agents about the need for surveillance and care of these individuals. We hope that the damage to their mental health as a result of the side effect of this pandemic can be mitigated by adequate and timely intervention.


Assuntos
COVID-19 , Saúde Mental/estatística & dados numéricos , Pandemias , Adolescente , Criança , Pré-Escolar , Feminino , Nível de Saúde , Humanos , Lactente , Masculino , Psicologia do Adolescente , Psicologia da Criança , Instituições Acadêmicas , Meio Social
12.
Ocul Immunol Inflamm ; 28(8): 1301-1304, 2020 Nov 16.
Artigo em Inglês | MEDLINE | ID: mdl-32946292

RESUMO

Background: Coronavirus disease 2019 (COVID-19) is caused by Severe Acute Respiratory Syndrome Coronavirus 2 10 (SARS-CoV-2). Recent studies demonstrated not only retinal impairments but also detected SARS-CoV-2 in the retina of patients with COVID-19. Purpose: This letter discusses the retinal tropism of SARS-CoV-2, describing possible routes for this coronavirus to reach the retina and cellular mechanisms involved in the retinal cell infection. Conclusions: Determining how SARS-CoV-2 can affect the retinal tissue is essential for the development of new therapeutic strategies and preventive measures, as well as for understanding the possible relationship between COVID-19 damage to the retina and to the brain.


Assuntos
Betacoronavirus/fisiologia , Infecções por Coronavirus/virologia , Infecções Oculares Virais/virologia , Pneumonia Viral/virologia , Retina/virologia , Tropismo Viral , COVID-19 , Infecções por Coronavirus/epidemiologia , Infecções Oculares Virais/epidemiologia , Humanos , Pandemias , Pneumonia Viral/epidemiologia , SARS-CoV-2
13.
Front Immunol ; 11: 1170, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32574266

RESUMO

Coronavirus disease 2019 (COVID-19) is caused by the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2). The impacts of the disease may be beyond the respiratory system, also affecting mental health. Several factors may be involved in the association between COVID-19 and psychiatric outcomes, such as fear inherent in the pandemic, adverse effects of treatments, as well as financial stress, and social isolation. Herein we discuss the growing evidence suggesting that the relationship between SARS-CoV-2 and host may also trigger changes in brain and behavior. Based on the similarity of SARS-CoV-2 with other coronaviruses, it is conceivable that changes in endocrine and immune response in the periphery or in the central nervous system may be involved in the association between SARS-CoV-2 infection and impaired mental health. This is likely to be further enhanced, since millions of people worldwide are isolated in quarantine to minimize the transmission of SARS-CoV-2 and social isolation can also lead to neuroendocrine-immune changes. Accordingly, we highlight here the hypothesis that neuroendocrine-immune interactions may be involved in negative impacts of SARS-CoV-2 infection and social isolation on psychiatric issues.


Assuntos
Infecções por Coronavirus/psicologia , Transtornos Mentais/etiologia , Saúde Mental , Pneumonia Viral/psicologia , Encéfalo , COVID-19 , Infecções por Coronavirus/imunologia , Doenças do Sistema Endócrino/virologia , Humanos , Doenças do Sistema Nervoso/virologia , Sistemas Neurossecretores , Pandemias , Pneumonia Viral/imunologia , Isolamento Social
14.
Rheumatology (Oxford) ; 59(Suppl 1): i10-i14, 2020 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-32159793

RESUMO

Enthesitis is a key manifestation of PsA and current knowledge supports the concept that it may be among the primary events in the development of this disease, as well as other forms of SpA. Patients with PsA seem to have a different threshold to mechanical stress, which may be genetically determined. Hence patients with psoriatic disease respond pathologically with inflammation after being exposed to physiological mechanical stress. Activation of pro-inflammatory mediators such as IL-17 and TNF-α as well as the influx of innate immune cells are key events in the development of enthesitis in PsA. Chronic entheseal inflammation is accompanied by new bone formation, leading to bony spurs in peripheral (entheseophytes) and axial (syndesmophytes) structures. This article reviews the current knowledge on the mechanisms involved in the development of enthesitis in patients with PsA.


Assuntos
Artrite Psoriásica/complicações , Entesopatia/fisiopatologia , Inflamação/complicações , Humanos , Inflamação/metabolismo , Interleucina-17/metabolismo , Interleucina-23/metabolismo , Osteogênese/imunologia , Osteogênese/fisiologia , Estresse Mecânico , Fator de Necrose Tumoral alfa/metabolismo
15.
Arthritis Rheumatol ; 72(1): 150-156, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31353871

RESUMO

OBJECTIVE: Few studies have systematically and quantitatively addressed the impact of urate-lowering therapy on monosodium urate (MSU) deposits. This study was undertaken to analyze the effect of lifestyle measures and conventional urate-lowering therapy on MSU deposits in patients with gout. METHODS: In this prospective study, subjects with gout according to the American College of Rheumatology/European League Against Rheumatism classification criteria and presence of MSU deposits seen on dual-energy computed tomography (DECT) scans received either lifestyle intervention or conventional urate-lowering therapy for a mean period of 18 months before a follow-up DECT scan. Detected MSU deposits were quantified by volumetric measurement and validated by semiquantitative scoring, and baseline and follow-up measurements were compared. RESULTS: Baseline and follow-up DECT scans were available for all 83 subjects. Six subjects discontinued treatment, and 77 subjects underwent a lifestyle intervention (n = 24) or were treated with allopurinol (n = 29), febuxostat (n = 22), or benzbromarone (n = 2) over the entire observation period. The mean serum uric acid (UA) level decreased from 7.2 to 5.8 mg/dl in the overall population. In patients who discontinued treatment, no change in MSU deposits or serum UA levels was observed. The burden of MSU deposits significantly decreased in patients undergoing lifestyle intervention (MSU volume P = 0.007; MSU score P = 0.001), and in patients treated with allopurinol (MSU volume and score P < 0.001) or febuxostat (MSU volume P < 0.001; MSU score P = 0.001). No significant decline in MSU deposits was noted in patients who discontinued treatment. CONCLUSION: These data show that lifestyle intervention and xanthine oxidase inhibitors significantly decrease the MSU deposit burden. Hence, conventional gout therapy not only lowers serum UA levels, but also reduces pathologic MSU deposits.


Assuntos
Dietoterapia , Articulações do Pé/diagnóstico por imagem , Supressores da Gota/uso terapêutico , Gota/terapia , Ácido Úrico/sangue , Idoso , Consumo de Bebidas Alcoólicas , Alopurinol/uso terapêutico , Benzobromarona/uso terapêutico , Febuxostat/uso terapêutico , Feminino , Frutose , Gota/diagnóstico por imagem , Humanos , Masculino , Carne , Pessoa de Meia-Idade , Estudos Prospectivos , Purinas , Frutos do Mar , Tomografia Computadorizada por Raios X , Uricosúricos/uso terapêutico
16.
Biochem Biophys Res Commun ; 519(1): 53-60, 2019 10 29.
Artigo em Inglês | MEDLINE | ID: mdl-31474338

RESUMO

Trophic factors are involved in different cellular responses. Previously we demonstrated that IL-4 treatment induces an increase in retinal ganglion cell survival (RGCS) and regulates cholinergic differentiation of retinal cells in vitro. Data from literature show that IGF-1 also promotes RGCS, an effect mediated by PI-3K/AKT pathway. The aim of this study was to investigate the role of IGF-1 and IGF-1R on RGCS mediated by IL-4 treatment and the role of M1 acetylcholine receptors in this effect. Here we show that the effect of IL-4 on RGCS depends on IGF-1 and IGF-1R activation, the PI-3K/AKT and NFkB intracellular pathways and depends on M1 mAChRs activation. IGF-1 increases the levels of M1 mAChRs in 15min, 45min, 24 h and 48 h in mixed retinal cells culture, modulates the levels of IL-4, pIGF-1R, IGF-1R. IL-4 modulates IGF-1, pIGF-1R and IGF-1R levels in different time intervals. These results put in evidence a crosstalk between IL-4 and IGF-1 and a role of M1 mAChRs, IGF-1 and IGF-1R in RGCS mediated by IL-4.


Assuntos
Fator de Crescimento Insulin-Like I/metabolismo , Interleucina-4/metabolismo , Receptor IGF Tipo 1/metabolismo , Receptor Muscarínico M1/metabolismo , Células Ganglionares da Retina/metabolismo , Animais , Sobrevivência Celular , Células Cultivadas , Ratos , Células Ganglionares da Retina/citologia
18.
Semin Arthritis Rheum ; 48(4): 632-637, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-30037432

RESUMO

OBJECTIVES: To date, all studies addressing on anti-inflammatory drugs in PsA have been carried out in psoriatic arthritis (PsA) patients with polyarticular disease. Specific studies on enthesitis are missing. IL-23 is considered to play a central role in the development of enthesitis. We therefore speculated that therapeutic inhibition of IL-12/IL-23 is particularly effective in enthesitis-driven PsA patients. METHODS: Enthesial CLearance In PSoriatic Arthritis (ECLIPSA) is a prospective randomized-controlled open-label study. Patients with PsA with active enthesitis were randomized 1:1 to receive either ustekinumab (UST; arm 1) or tumor necrosis factor inhibitors (TNFi; arm 2). Primary endpoint was complete clearance of enthesitis, defined by Spondyloarthritis Research Consortium of Canada (SPARCC) index equal to zero at 24 weeks. RESULTS: 51 patients (UST = 25; TNFi = 26) were screened, 47 enrolled (UST = 23; TNFi = 24) and 46 completed the study. Mean ±â€¯SD SPARCC index at baseline was 4.8 ±â€¯2.6 in the UST group and 3.5 ±â€¯2.3 in the TNFi group with no significant difference. After 24 weeks, 73.9% of UST patients and 41.7% of TNFi patients reached the primary endpoint (SPARCC = 0) indicating clearance from enthesitis (p = 0.018). UST achieved superior responses as compared to TNFi with respect to enthesitis (p = 0.007) and psoriatic skin disease (p = 0.030) but not for arthritis (p = 0.95). CONCLUSION: These results indicate that p40-IL-12/IL-23 inhibition is superior to TNFi in the clearance of enthesitis. Future stratified therapeutic approaches in PsA patients may therefore consider the presence or absence of enthesitis as a discriminator of response between different cytokine blocking modalities.


Assuntos
Antirreumáticos/uso terapêutico , Artrite Psoriásica/tratamento farmacológico , Entesopatia/tratamento farmacológico , Fator de Necrose Tumoral alfa/antagonistas & inibidores , Ustekinumab/uso terapêutico , Adalimumab/uso terapêutico , Adulto , Idoso , Idoso de 80 Anos ou mais , Certolizumab Pegol/uso terapêutico , Etanercepte/uso terapêutico , Feminino , Humanos , Infliximab/uso terapêutico , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento
19.
Braz. j. otorhinolaryngol. (Impr.) ; 84(6): 677-686, Nov.-Dec. 2018. tab, graf
Artigo em Inglês | LILACS | ID: biblio-974387

RESUMO

Abstract Introduction: Functional endonasal endoscopic surgery is a frequent surgical procedure among otorhinolaryngologists. In 2014, the European Society of Rhinology published the "European Position Paper on the Anatomical Terminology of the Internal Nose and Paranasal Sinuses", aiming to unify the terms in the English language. We do not yet have a unified terminology in the Portuguese language. Objective: Transcultural adaptation of the anatomical terms of the nose and paranasal cavities of the "European Anatomical Terminology of the Internal Nose and Paranasal Sinuses" to Portuguese. Methods: A group of rhinologists from diverse parts of Brazil, all experienced in endoscopic endonasal surgery, was invited to participate in the creation of this position paper on the anatomical terms of the nose and paranasal sinuses in the Portuguese language according to the methodology adapted from that previously described by Rudmik and Smith. Results: The results of this document were generated based on the agreement of the majority of the participants according to the most popular suggestions among the rhinologists. A cross-cultural adaptation of the sinonasal anatomical terminology was consolidated. We suggest the terms "inferior turbinate", "nasal septum", "(bone/cartilaginous) part of the nasal septum", "(middle/inferior) nasal meatus", "frontal sinus drainage pathway", "frontal recess" and "uncinate process" be standardized. Conclusion: We have consolidated a Portuguese version of the European Anatomical Terminology of the Internal Nose and Paranasal Sinuses, which will help in the publication of technical announcements, scientific publications and the teaching of the internal anatomical terms of the nose and paranasal sinuses in Brazil.


Resumo: Introdução: A cirurgia endoscópica funcional endonasal é um procedimento cirúrgico frequente entre os otorrinolaringologistas. Em 2014, a Sociedade Europeia de Rinologia publicou o "Documento Europeu para Posicionamento sobre a Terminologia Anatômica Interna do Nariz e das Cavidades Paranasais" com o objetivo de unificar os termos na língua inglesa. Ainda não dispomos de uma terminologia unificada na língua portuguesa. Objetivo: Adaptação transcultural dos termos anatômicos do nariz e das cavidades paranasais para o português da "European Anatomical Terminology of the Internal Nose and Paranasal Sinuses". Método: Um grupo de rinologistas de todo o Brasil, com experiência em cirurgia endoscópica endonasal, foi convidado a participar da elaboração desse posicionamento sobre os termos anatômicos do nariz e das cavidades paranasais para o português conforme metodologia adaptada da previamente descrita por Rudmik e Smith. Resultados: Os resultados desse documento foram gerados a partir da concordância da maioria dos participantes conforme as sugestões mais populares entre os rinologistas. Uma adaptação transcultural da terminologia anatômica nasossinusal foi consolidada. Sugerimos que se busque uniformizar termos como "concha inferior", "septo nasal", "porção (óssea/cartilaginosa) do septo nasal", "meato (médio/ inferior) nasal", "via da drenagem do seio frontal", "recesso frontal" e "processo uncinado". Conclusão: Consolidamos uma versão adaptada em português da "European Anatomical Terminology of the Internal Nose and Paranasal Sinuses" que auxiliará a publicação de comunicados técnicos, publicações científicas e o ensino dos termos anatômicos internos do nariz e das cavidades paranasais no Brasil.


Assuntos
Humanos , Seios Paranasais/anatomia & histologia , Nariz/anatomia & histologia , Comparação Transcultural , Terminologia como Assunto , Seios Paranasais/cirurgia , Brasil , Nariz/cirurgia , Estudos Prospectivos , Consenso , Idioma , Cavidade Nasal/anatomia & histologia , Cavidade Nasal/cirurgia
20.
Braz J Otorhinolaryngol ; 84(6): 677-686, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30316778

RESUMO

INTRODUCTION: Functional endonasal endoscopic surgery is a frequent surgical procedure among otorhinolaryngologists. In 2014, the European Society of Rhinology published the "European Position Paper on the Anatomical Terminology of the Internal Nose and Paranasal Sinuses", aiming to unify the terms in the English language. We do not yet have a unified terminology in the Portuguese language. OBJECTIVE: Transcultural adaptation of the anatomical terms of the nose and paranasal cavities of the "European Anatomical Terminology of the Internal Nose and Paranasal Sinuses" to Portuguese. METHODS: A group of rhinologists from diverse parts of Brazil, all experienced in endoscopic endonasal surgery, was invited to participate in the creation of this position paper on the anatomical terms of the nose and paranasal sinuses in the Portuguese language according to the methodology adapted from that previously described by Rudmik and Smith. RESULTS: The results of this document were generated based on the agreement of the majority of the participants according to the most popular suggestions among the rhinologists. A cross-cultural adaptation of the sinonasal anatomical terminology was consolidated. We suggest the terms "inferior turbinate", "nasal septum", "(bone/cartilaginous) part of the nasal septum", "(middle/inferior) nasal meatus", "frontal sinus drainage pathway", "frontal recess" and "uncinate process" be standardized. CONCLUSION: We have consolidated a Portuguese version of the European Anatomical Terminology of the Internal Nose and Paranasal Sinuses, which will help in the publication of technical announcements, scientific publications and the teaching of the internal anatomical terms of the nose and paranasal sinuses in Brazil.


Assuntos
Comparação Transcultural , Nariz/anatomia & histologia , Seios Paranasais/anatomia & histologia , Terminologia como Assunto , Brasil , Consenso , Humanos , Idioma , Cavidade Nasal/anatomia & histologia , Cavidade Nasal/cirurgia , Nariz/cirurgia , Seios Paranasais/cirurgia , Estudos Prospectivos
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