Results: 35

Interação B1R/TLR4 como mecanismo de resposta inflamatória e sua implicação na barreira hematoencefálica em modelo de glioblastoma
B1R/TLR4 interaction as a mechanism of inflammatory response and its implication on the blood-brain barrier in glioblastoma model

A família dos receptores de cininas compreende dois subtipos, sendo o B1R aquele em tem como um de seus agonistas fisiológicos a des-Arg9 -BK (DBK). O receptor B1 tem baixa expressão ou está até mesmo ausente em condições fisiológicas normais, podendo ser induzido por vários estímulos, como o p...

In vivo Gonadoprotective Effects of Myricetin on Cisplatin- Induced Testicular Damage via Suppression of TLR4/NF-kB Inflammation Pathway and Heat-Shock Response

Int. j. morphol; 41 (6), 2023
SUMMARY: The aim of this study is to reveal the gonadoprotective effects of myricetin (MYC), which has many biological properties, on cisplatin (CP)-induced testicular damage in rats. For this purpose, 40 male Wistar albino rats were divided into 4 groups as Control (group given no treatment), MYC (group...

Diacerein mitigates renal ischemia/reperfusion injury via inhibition of renal inflammation, dendritic cells maturation and apoptosis: the role of TLR4/NF-kB/NLRP3/IL-1beta signaling pathway

Int. j. morphol; 41 (2), 2023
SUMMARY: One of the reasons for acute kidney damage is renal ischemia. Nevertheless, there are limited protective and therapeutic approaches for this problem. Diacerein is an anti-inflammatory drug characterized by numerous biological activities. We aimed to determine the ameliorative impact of diacerein...

Neuro-protective effect of Linalool against spinal cord injury in rats and the mechanism involved

The current study was conducted to determine the neuroprotective role and mechanism of action of Linalool (LIN) in SCI. The SCI in Sprague-Dawley (SD) rats was induced by weight-drop contusion model. Results of the suggested that LIN showed improvement in the locomo...

Morphine promotes migration and lung metastasis of mouse melanoma cells

Braz. J. Anesth. (Impr.); 73 (4), 2023
Abstract Background Morphine is an analgesic agent used for cancer pain management. There have been recent concerns that the immunosuppressant properties of morphine can also promote cancer metastasis. Morphine is an agonist for toll like receptor 4 (TLR4) that has a dual role in cancer development. The...

Mechanism of dexmedetomidine preconditioning on spinal cord analgesia in rats with functional chronic visceral pain

Acta cir. bras; 37 (2), 2022
Purpose: To analyze the effect and mechanism of dexmedetomidine (DEX) analgesia pretreatment on functional chronic visceral pain in rats. Methods: Rats were divided into six groups: W1, W2, W3, W4, W5, and W6. The behavioral changes and electrophysiological indexes of rats in each group before and after...

Efeito da dieta hiperlipídica e melatonina sobre a lesão periapical na sensibilidade a insulina, inflamação, perfil lipídico e estresse oxidativo em musculo esquelético de ratos

Atualmente, na literatura, existem diversos tipos de dietas alimentares administradas em animais que visam verificar os efeitos em seu metabolismo e em sua saúde sistêmica, com intuito de compreender como essas dietas podem afetar a saúde humana. Sendo assim, é fundamental verificar a relação entre...

Relação entre resposta imune inata do receptor toll-like-4 (TLR-4) e o processo fisiopatológico da cardiomiopatia da obesidade

Arq. bras. cardiol; 117 (1), 2021
Resumo Fundamento A obesidade é uma condição inflamatória crônica de baixo grau relacionada a distúrbios cardíacos. No entanto, o mecanismo responsável pela inflamação cardíaca relacionada à obesidade não é claro. O receptor do tipo toll 4 (TLR-4) pertence a um receptor da família das tra...

miR-139-5p protects septic mice with acute lung injury by inhibiting Toll-like receptor 4/Myeloid differentiation factor 88/Nuclear factor-&mac_kgr; B signaling pathway

Clinics; 76 (), 2021
OBJECTIVES: To investigate the role of miR-139-5p and the TLR4/MyD88/NF-κB signaling pathway in acute lung injury in septic mice. METHOD: A total of 140 healthy male SPF C57BL/6 mice were divided into seven groups, i.e., Normal, Control, NC, miR-139-5p mimic, miR-139-5p inhibitor, TAK-242, and miR-...

miR-141 is negatively correlated with TLR4 in neonatal sepsis and regulates LPS-induced inflammatory responses in monocytes

Braz. j. med. biol. res; 54 (7), 2021
Neonatal sepsis is an inflammatory system syndrome and a main cause of neonatal mortality. However, there is a lack of ideal biomarkers for early neonatal sepsis diagnosis. The aim of this study was to evaluate the clinical significance of miR-141 in sepsis in neonates, and explore the regulatory effects...