RESUMO
Rheumatoid arthritis (RA) is a slowly progressing inflammatory autoimmune disease. Several features are involved in the RA pathogenesis in addition to environmental and genetic factors. Previously it has been reported that acetyl cholinesterase (AChE) activity is enhanced in old age and may contribute in the progression of RA. The current experimental work was projected to assess the activity of physostigmine (a cholinesterase inhibitor) for treatment of RA. In vitro and in vivo approaches were used for such evaluation. However, enzyme linked immunosorbent assays (ELISA) was performed to determine the concentrations of Prostaglandins E2 (PGE2) and tumor necrosis factor-α in arthritic rats after treatment with physostigmine. Moreover, anti-oxidant assays were employed to calculate the level of super oxide dismutase (SOD) and catalase peroxidase (CAT) in tissue of treated animals. The results claimed the dose dependent protective and stabilizing effect of physostigmine on denaturation of albumin (egg and bovine serum) protein and human red blood cell membrane, respectively, through in vitro studies. Furthermore, the physostigmine (10 and 20 mg/kg) significantly (p < 0.001) reduced the swelling of paw after induction of arthritis with formaldehyde or complete Freund's adjuvant (CFA) as compared to arthritic control animals. Moreover, significant (p < 0.001) reduction in the levels of inflammatory markers (PGE2 and TNF-α) at doses of 10 and 20 mg/kg of physostigmine has been observed in ELISA test. Likewise, there was a prominent rise in levels of SOD and CAT in animals treated with physostigmine. These findings pharmacologically conclude the anti-arthritic effect of physostigmine.
Assuntos
Antirreumáticos/farmacologia , Artrite Experimental/tratamento farmacológico , Artrite Experimental/patologia , Membrana Celular/efeitos dos fármacos , Eritrócitos/efeitos dos fármacos , Fisostigmina/farmacologia , Animais , Antirreumáticos/uso terapêutico , Artrite Experimental/metabolismo , Membrana Celular/metabolismo , Inibidores da Colinesterase/farmacologia , Inibidores da Colinesterase/uso terapêutico , Relação Dose-Resposta a Droga , Eritrócitos/metabolismo , Humanos , Masculino , Fisostigmina/uso terapêutico , Ratos , Ratos Sprague-Dawley , Soroalbumina Bovina/antagonistas & inibidores , Soroalbumina Bovina/metabolismoRESUMO
Fluvoxamine, a selective serotonin re uptake inhibitor, is used to treat depression. The aim of present study was to evaluate fluvoxamine in acute (egg albumin-induced inflammation) and chronic inflammatory rat models (formaldehyde and complete Freund's adjuvant (CFA)-induced arthritis). Fluvoxamine showed highly significant (p<0.001) protective effect at dose of 50 mg/kg orally with percentage suppression 21.3% as compared to disease control group in acute model. Likewise, formaldehyde-induced arthritic experiment confirmed the significant (p<0.001) anti-arthritic behavior, showed by fluvoxamine (50 mg/kg orally) throughout the study. Moreover, In CFA-induced model, the higher dose (fluvoxamine 50 mg/kg) exhibited highly significant (p<0.001) decrease in paw thickness and arthritic score with significant increase in weight of animals from 123.8± 1.934 g to 130.2± 1.655 g, significantly decreased the level of RF and CRP to level of 12.0±0.707 and 11.40±0.50 respectively and restoration of SOD, CAT (69.8±1.5, 72.0±1.4 respectively). Furthermore, the level of TNF-α, PGE2, and IL-1ß (147.0±2.0, 406.8±2.5, and 93.8±1.3 respectively) in arthritic animals was reduced to significant (p<0.001) level (53.8±1.3, 205±3.6, and 42.0±1.4 respectively) after treatment with fluvoxamine. Furthermore, molecular docking of fluvoxamine against TNF-α, PGE2, and IL-1ß protein targets showed good binding energies which hereby from computational studies proves our compound anti-inflammatory potential. In addition, absorption, distribution, metabolism, excretion, and toxicity (ADMET) studies reveled that fluvoxamine has very good pharmacokinetic profile with no specific hepatic toxicity and good absorption level. In addition, the skin sensitization test in vitro human cell line activation test (h-CLAT) and KeratinoSens have revealed that isolated flavone is not skin sensitive with confidence score of 59.6% and 91.6%. The current findings validated the anti-arthritic potential of fluvoxamine but it should be recommended for clinical investigation in future research.
Assuntos
Dinoprostona , Fator de Necrose Tumoral alfa , Ratos , Humanos , Animais , Fator de Necrose Tumoral alfa/metabolismo , Fluvoxamina/farmacologia , Interleucina-1beta , Reposicionamento de Medicamentos , Simulação de Acoplamento Molecular , InflamaçãoRESUMO
Hepatocellular carcinoma (HCC) is the most common primary cancer of liver tissue and is often caused by chronic liver diseases. The Barcelona Clinic Liver Cancer (BCLC) staging system is commonly used to determine the stage and prognosis of HCC. Transarterial chemoembolization (TACE) is the recommended first-line therapy for intermediate-stage HCC (patients who have asymptomatic, multi-nodular hepatocellular carcinoma). Over the past 10 years, the combination of TACE with immune checkpoint inhibitors, such as Camrelizumab, has shown promising results in treating HCC. We conducted a systematic review and meta-analysis following PRISMA guidelines. A comprehensive search of PubMed, MEDLINE, Elsevier, Scopus, ATC abstracts, and the Cochrane Central Register of Controlled Trials (CENTRAL) databases was performed to identify relevant studies on the effectiveness of TACE combined with Camrelizumab in the treatment of HCC. Study selection, data extraction, and quality assurance were conducted by independent investigators. From 1023 identified citations, six studies were included in the final analysis. The combined results of these studies showed a complete response rate of 7.35%, a partial response rate of 37.10%, stable disease in 28.76% of patients, an objective response rate of 46.13%, a disease control rate of 77.19%, and progression-free survival of 6.2 months. The combination of TACE and Camrelizumab appears to be a safe and effective treatment option for patients with advanced, recurrent, and unresectable HCC. However, the included studies had limitations such as retrospective design and small sample sizes. Further research is needed to validate and expand on these findings.