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1.
Curr Diabetes Rev ; 2024 Jul 02.
Artigo em Inglês | MEDLINE | ID: mdl-38956912

RESUMO

INTRODUCTION/OBJECTIVES: Recently, there has been a notable increase in interest in various forms of vegetarianism, which may be due to the growing prevalence of health issues, such as Type 2 Diabetes Mellitus (T2DM). Adhering to a vegan diet may have positive health outcomes. As a result, we conducted a review article to gather data from previous research studies on the effects of a vegan diet on different aspects of managing patients with T2DM. METHODS: We searched the PubMed website for research studies on how a vegan diet affects the outcomes of patients with T2DM. The research studies were categorized according to the type of data collected, such as prevalence, incidence, body weight, insulin resistance, glycemic control, and lipid profile. RESULTS: It was found that following a vegetarian diet can significantly reduce the risk of mortality from heart disease. Additionally, studies have demonstrated that a vegetarian diet is linked to several improvements in T2DM. However, long-term weight loss plans and managing T2DM is a comprehensive intervention that includes caloric restriction, exercise, and behavioral modification. CONCLUSION: Incorporating a vegan diet can be a valuable factor to consider in managing T2DM, as it can offer numerous benefits, such as increased insulin sensitivity, weight loss, and reduced blood sugar levels. It helps to reduce cholesterol levels, LDL, and triglyceride levels, which are all risk factors associated with T2DM. By reducing these risk factors, the vegan diet can improve the overall health of T2DM patients.

.

2.
Redox Rep ; 29(1): 2365590, 2024 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38861483

RESUMO

Emodin is a naturally occurring anthraquinone derivative with a wide range of pharmacological activities, including neuroprotective and anti-inflammatory activities. We aim to assess the anticancer activity of emodin against hepatocellular carcinoma (HCC) in rat models using the proliferation, invasion, and angiogenesis biomarkers. After induction of HCC, assessment of the liver impairment and the histopathology of liver sections were investigated. Hepatic expression of both mRNA and protein of the oxidative stress biomarkers, HO-1, Nrf2; the mitogenic activation biomarkers, ERK5, PKCδ; the tissue destruction biomarker, ADAMTS4; the tissue homeostasis biomarker, aggregan; the cellular fibrinolytic biomarker, MMP3; and of the cellular angiogenesis biomarker, VEGF were measured. Emodin increased the survival percentage and reduced the number of hepatic nodules compared to the HCC group. Besides, emodin reduced the elevated expression of both mRNA and proteins of all PKC, ERK5, ADAMTS4, MMP3, and VEGF compared with the HCC group. On the other hand, emodin increased the expression of mRNA and proteins of Nrf2, HO-1, and aggrecan compared with the HCC group. Therefore, emodin is a promising anticancer agent against HCC preventing the cancer prognosis and infiltration. It works through many mechanisms of action, such as blocking oxidative stress, proliferation, invasion, and angiogenesis.


Assuntos
Proteína ADAMTS4 , Antioxidantes , Carcinoma Hepatocelular , Emodina , Neoplasias Hepáticas , Tioacetamida , Animais , Emodina/farmacologia , Carcinoma Hepatocelular/tratamento farmacológico , Carcinoma Hepatocelular/metabolismo , Carcinoma Hepatocelular/induzido quimicamente , Carcinoma Hepatocelular/patologia , Ratos , Tioacetamida/toxicidade , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Hepáticas/metabolismo , Neoplasias Hepáticas/induzido quimicamente , Neoplasias Hepáticas/patologia , Antioxidantes/farmacologia , Antioxidantes/metabolismo , Proteína ADAMTS4/metabolismo , Masculino , Proteína Quinase C/metabolismo , Estresse Oxidativo/efeitos dos fármacos , Antineoplásicos/farmacologia , Transdução de Sinais/efeitos dos fármacos , Proliferação de Células/efeitos dos fármacos
3.
Curr Alzheimer Res ; 2024 May 17.
Artigo em Inglês | MEDLINE | ID: mdl-38766828

RESUMO

BACKGROUND: As individuals age, they may develop Alzheimer's disease (AD), which is characterized by difficulties in speech, memory loss, and other issues related to neural function. Cycloastragenol is an active ingredient of Astragalus trojanus and has been used to treat inflammation, aging, heart disease, and cancer. OBJECTIVES: This study aimed to explore the potential therapeutic benefits of cycloastragenol in rats with experimentally induced AD. Moreover, the underlying molecular mechanisms were also evaluated by measuring Nrf2 and HO-1, which are involved in oxidative stress, NFκB and TNF-α, which are involved in inflammation, and BCL2, BAX, and caspase-3, which are involved in apoptosis. METHODS: Sprague-Dawley rats were given 70 mg/kg of aluminum chloride intraperitoneally daily for six weeks to induce AD. Following AD induction, the rats were given 25 mg/kg of cycloastragenol daily by oral gavage for three weeks. Hippocampal sections were stained with hematoxylin/ eosin and with anti-caspase-3 antibodies. The Nrf2, HO-1, NFκB, TNF-α, BCL2, BAX, and caspase-3 gene expressions and protein levels in the samples were analyzed. RESULTS: Cycloastragenol significantly improved rats' behavioral test performance. It also strengthened the organization of the hippocampus. Cycloastragenol significantly improved behavioral performance and improved hippocampal structure in rats. It caused a marked decrease in the expression of NFκB, TNF-α, BAX, and caspase-3, which was associated with an increase in the expression of BCL2, Nrf2, and HO-1. CONCLUSION: Cycloastragenol improved the structure of the hippocampus in rats with AD. It enhanced the outcomes of behavioral tests, decreased the concentration of AChE in the brain, and exerted antioxidant and anti-inflammatory effects. Antiapoptotic effects were also noted, leading to significant improvements in cognitive function, memory, and behavior in treated rats.

4.
Biomol Biomed ; 2024 Mar 10.
Artigo em Inglês | MEDLINE | ID: mdl-38461536

RESUMO

Hepatocellular carcinoma (HCC) affects approximately 800,000 individuals globally each year. Despite advancements in HCC treatments, there is still a pressing need to identify new drugs that can combat resistance. One potential option is echinacoside, a natural caffeic acid glycoside with antioxidant, anti-inflammatory, antidepressant, and antidiabetic properties. Therefore, we aimed to investigate the ability of echinacoside to exhibit antitumor activity against HCC in rats through ameliorating hepatic fibrosis and tumor invasion. Rats were given thioacetamide to induce HCC, and some were given 30 mg/kg of echinacoside twice a week for 16 weeks. The liver impairment was assessed by measuring serum α-fetoprotein (AFP) and examining liver sections stained with Masson trichrome or anti-transforming growth factor (TGF)-ß1 antibodies. The hepatic expression of mRNA and protein levels of TGF-ß1, ß-catenin, SMAD4, matrix metalloproteinase-9 (MMP9), phosphoinositide 3-kinases (PI3K), mammalian target of rapamycin (mTOR), connective tissue growth factor 2 (CCN2), E-Cadherin, platelets derived growth factor (PDGF)-B and fascin were also analyzed. Echinacoside improved the survival rate of rats by decreasing serum AFP and the number of hepatic nodules. Examination of micro-images indicated that echinacoside can reduce fibrosis. It also significantly decreased the expression of TGF-ß1, ß-catenin, SMAD4, MMP9, PI3K, mTOR, CCN2, PDGF-B, and fascin while enhancing the expression of E-Cadherin. In conclusion, echinacoside exhibits a protective effect against HCC by increasing survival rates and decreasing tumor growth. It also acts as an inhibitor of the hepatic tissue fibrosis pathway by reducing the expression of TGF-ß1, ß-catenin, SMAD4, PI3K, CCN2, PDGF-B and mTOR. Additionally, it prevents tumor invasion by suppressing MMP9 and fascin, and increasing the expression of E-Cadherin.

5.
Mol Cell Biochem ; 479(2): 431-444, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37084167

RESUMO

Ulcerative colitis (UC) is an inflammatory bowel disease that affects the mucosa of the colon, resulting in severe inflammation and ulcers. Genistein is a polyphenolic isoflavone present in several vegetables, such as soybeans and fava beans. Therefore, we conducted the following study to determine the therapeutic effects of genistein on UC in rats by influencing antioxidant activity and mitochondrial biogenesis and the subsequent effects on the apoptotic pathway. UC was induced in rats by single intracolonic administration of 2 ml of 4% acetic acid. Then, UC rats were treated with 25-mg/kg genistein. Colon samples were obtained to assess the gene and protein expression of nuclear factor erythroid 2-related factor-2 (Nrf2), heme oxygenase-1 (HO-1), peroxisome proliferator-activated receptor-gamma coactivator (PGC-1), mitochondrial transcription factor A (TFAM), B-cell lymphoma 2 (BCL2), BCL2-associated X (BAX), caspase-3, caspase-8, and caspase-9. In addition, colon sections were stained with hematoxylin/eosin to investigate the cell structure. The microimages of UC rats revealed inflammatory cell infiltration, hemorrhage, and the destruction of intestinal glands, and these effects were improved by treatment with genistein. Finally, treatment with genistein significantly increased the expression of PGC-1, TFAM, Nrf2, HO-1, and BCL2 and reduced the expression of BAX, caspase-3, caspase-8, and caspase-9. In conclusion, genistein exerted therapeutic effects against UC in rats. This therapeutic activity involved enhancing antioxidant activity and increasing mitochondrial biogenesis, which reduced cell apoptosis.


Assuntos
Colite Ulcerativa , Genisteína , Animais , Ratos , Genisteína/farmacologia , Colite Ulcerativa/induzido quimicamente , Colite Ulcerativa/tratamento farmacológico , Caspase 3 , Caspase 9 , Caspase 8 , Antioxidantes/farmacologia , Fator 2 Relacionado a NF-E2 , Biogênese de Organelas , Proteína X Associada a bcl-2
7.
Redox Rep ; 28(1): 2218679, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37260037

RESUMO

OBJECTIVES: Gastric ulcer (GU) is a prevalent chronic digestive disease affecting about 10% of the world's population leading to gastrointestinal perforation and bleeding. Genistein is a legume flavonoid with antioxidants, anti-inflammatory and antibacterial activities. Therefore, we aimed to investigate the ability of genistein to reduce experimentally induced GU in rats by affecting gastric tissue fibrosis Wnt/ß-catenin/TGF-ß/SMAD4 pathway. METHODS: Thirty rats were used. Ten rats served as control, and GU was induced in twenty rats using a single dose of indomethacin (80 mg/kg) orally. Following induction of GU, ten were treated with genistein 25 mg/kg orally. The gastric tissues were isolated to investigate markers of gastric fibrosis, Wnt, ß-catenin, transforming growth factor (TGF)-ß, SMAD4, and Protein kinase B (PKB). In addition, gastric sections were stained with PAS and anti-TGF-ß antibodies. RESULTS: Investigation GU micro-images revealed degeneration in both surface cells and glandular epithelial cells, which was improved by genistein. In addition, treatment with genistein significantly reduced the expression of Wnt, ß-catenin, TGF-ß, SMAD4, and PKB. CONCLUSION: Besides antioxidant activity, genistein improves experimentally induced GU in rats, at least in part, via reduction of gastric tissue fibrosis as indicated by reduction in expression of Wnt, ß-catenin, TGF-ß, SMAD4, and PKB.


Assuntos
Genisteína , Úlcera Gástrica , Fator de Crescimento Transformador beta , Animais , Ratos , beta Catenina/metabolismo , Cateninas , Fibrose , Genisteína/uso terapêutico , Úlcera Gástrica/induzido quimicamente , Úlcera Gástrica/tratamento farmacológico , Fator de Crescimento Transformador beta/metabolismo
8.
Int Immunopharmacol ; 118: 110138, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-37030122

RESUMO

Ulcerative colitis (UC) is an inflammatory bowel disease with characteristic inflammation to mucosal cells in rectum and colon leading to lesions in mucosa and submucosa. Moreover, crocin is a carotenoid compound among active constituents of saffron with many pharmacological effects as antioxidant, anti-inflammatory and anticancer activities. Therefore, we aimed to investigate therapeutic effects of crocin against UC through affecting the inflammatory and apoptotic pathways. For induction of UC in rats, intracolonic 2 ml of 4% acetic acid was used. After induction of UC, part of rats was treated with 20 mg/kg crocin. cAMP was measured using ELISA. Moreover, we measured gene and protein expression of B-cell lymphoma 2 (BCL2), BCL2-associated X (BAX), caspase-3/8/9, NF-κB, tumor necrosis factor (TNF)-α and IL-1ß/4/6/10. Colon sections were stained with hematoxylin-eosin and Alcian blue or immune-stained with anti-TNF-α antibodies. Microscopic images of colon sections in UC group revealed destruction of intestinal glands associated with infiltration of inflammatory cell and severe hemorrhage. While images stained with Alcian blue showed damaged and almost absent intestinal glands. Crocin treatment ameliorated morphological changes. Finally, crocin significantly reduced expression levels of BAX, caspase-3/8/9, NF-κB, TNF-α, IL-1ß and IL-6, associated with increased levels of cAMP and expression of BCL2, IL-4 and IL-10. In conclusion, protective of action of crocin in UC is proved by restoration of normal weight and length of colon as well as improvement of morphological structure of colon cells. The mechanism of action of crocin in UC is indicated by activation of anti-apoptotic and anti-inflammatory effects.


Assuntos
Colite Ulcerativa , Ratos , Animais , Colite Ulcerativa/induzido quimicamente , Colite Ulcerativa/tratamento farmacológico , NF-kappa B/metabolismo , Azul Alciano/farmacologia , Caspase 3 , Inibidores do Fator de Necrose Tumoral/uso terapêutico , Proteína X Associada a bcl-2 , Inflamação/tratamento farmacológico , Inflamação/patologia , Carotenoides/farmacologia , Carotenoides/uso terapêutico , Colo/patologia , Fator de Necrose Tumoral alfa/metabolismo , Anti-Inflamatórios/farmacologia , Anti-Inflamatórios/uso terapêutico , Apoptose , Modelos Animais de Doenças
9.
J Enzyme Inhib Med Chem ; 38(1): 2185761, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36912230

RESUMO

Hepatocellular carcinoma is considered one of the most lethal cancers, which is characterised by increasing prevalence associated with high level of invasion and metastasis. The novel synthetic pyrazolo[3,4-b]pyridine compound, WRH-2412, was reported to exhibit in vitro antitumor activity. This study was conducted to evaluate the antitumor activity of WRH-2412 in HCC induced in rats through affecting the TGF-ß/ß-catenin/α-SMA pathway. Antitumor activity of WRH-2412 was evaluated by calculating the rat's survival rate and by assessment of serum α-fetoprotein. Protein expression of TGF-ß, ß-catenin, E-cadherin, fascin and gene expression of SMAD4 and α-SMA were determined in hepatic tissue of rats. WRH-2412 produced antitumor activity by significantly increasing the rats' survival rate and decreasing serum α-fetoprotein. WRH-2412 significantly reduced an HCC-induced increase in hepatic TGF-ß, ß-catenin, SMAD4, fascin and α-SMA expression. In addition, WRH-2412 significantly increased hepatic E-cadherin expression.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , Ratos , Animais , Carcinoma Hepatocelular/patologia , Fator de Crescimento Transformador beta/metabolismo , beta Catenina/metabolismo , Cateninas , alfa-Fetoproteínas , Neoplasias Hepáticas/patologia , Caderinas/genética , Caderinas/metabolismo , Fator de Crescimento Transformador beta1/genética , Fator de Crescimento Transformador beta1/metabolismo
10.
Basic Clin Pharmacol Toxicol ; 131(5): 406-419, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-36029292

RESUMO

Patients with ulcerative colitis (UC) experience diarrhoea, hematochezia and abdominal pain. UC is a well-known health challenge affecting 200-250 per 100 000 individuals worldwide, with a similar prevalence in both sexes and elevated upon activation of gut immune responses. We evaluated the potential therapeutic effects of cycloastragenol in experimentally induced UC rats and examined the modulation of sphingosine kinase (SphK), macrophage inflammatory protein (MIP)-1α and miR-143. We treated UC rats with 30 mg/kg cycloastragenol and assessed gene and protein expression levels of SphK, MIP-1α, B-cell lymphoma 2 (BCL2), BCL2-associated X (BAX), miR-143, NF-κB, tumour necrosis factor (TNF)-α and active caspase-3. Colon sections were examined using electron microscopy; additional sections were stained with haematoxylin-eosin or immunostained with anti-TNF-α and anti-caspase-3 antibodies. Electron microscopy of UC specimens revealed dark distorted goblet cell nuclei with disarranged mucus granules and a nondistinct brush border with atypical microvilli. Haematoxylin-eosin staining showed damaged intestinal glands, severe haemorrhage and inflammatory cell infiltration. Cycloastragenol treatment improved the induced morphological changes. In UC rats, cycloastragenol significantly reduced expression levels of SphK, MIP-1α, BAX, NF-κB, TNF-α and active caspase-3, associated with BCL2 and miR-143 overexpression. Therefore, cycloastragenol protects against UC by modulating SphK/MIP-1α/miR-143, subsequently deactivating inflammatory and apoptotic pathways.


Assuntos
Colite Ulcerativa , MicroRNAs , Animais , Quimiocina CCL3/genética , Colite Ulcerativa/induzido quimicamente , Colite Ulcerativa/tratamento farmacológico , Amarelo de Eosina-(YS)/uso terapêutico , Feminino , Masculino , MicroRNAs/genética , NF-kappa B/metabolismo , Fosfotransferases (Aceptor do Grupo Álcool) , Ratos , Sapogeninas , Inibidores do Fator de Necrose Tumoral , Fator de Necrose Tumoral alfa/metabolismo , Proteína X Associada a bcl-2/genética
11.
BMC Complement Med Ther ; 22(1): 196, 2022 Jul 23.
Artigo em Inglês | MEDLINE | ID: mdl-35870906

RESUMO

BACKGROUND: Ulcerative colitis (UC) is an inflammatory bowel disease. Fucoidan, sulfated polysaccharide of brown seaweed, demonstrates various pharmacological actions as anti-inflammatory, anti-tumor and anti-bacterial effects. Therefore, we opt to investigate the potential curative effects of fucoidan in experimentally induced UC in rats through modulating aryl hydrocarbon receptor (AhR), phosphodiesterase-4 (PDE4), nuclear factor erythroid 2-related factor 2 (Nrf2) and Heme Oxygenase-1 (HO-1). METHODS: UC was induced in rats using intracolonic 2 ml of 4% acetic acid. Some rats were treated with 150 mg/kg fucoidan. Samples of colon were used to investigate gene and protein expression of AhR, PDE4, Nrf2, HO-1 and cyclic adenosine monophosphate (cAMP). Sections of colon were stained with hematoxylin/eosin, Alcian blue or immune-stained with anti-PDE4 antibodies. RESULTS: Investigation of hematoxylin/eosin stained micro-images of UC rats revealed damaged intestinal glands, severe hemorrhage and inflammatory cell infiltration, while sections stained with Alcian Blue revealed damaged and almost absent intestinal glands. UC results in elevated gene and protein expression of PDE4 associated with reduced gene and protein expression of AhR, IL-22, cAMP, Nrf2 and HO-1. Finally, UC increased the oxidative stress and reduced antioxidant activity in colon tissues. All morphological changes as well as gene and protein expressions were ameliorated by fucoidan. CONCLUSION: Fucoidan could treat UC induced in rats. It restored the normal weight and length of colon associated with morphological improvement as found by examining sections stained with hematoxylin/eosin and Alcian Blue. The curative effects could be explained by enhancing antioxidant activity, reducing the expression of PDE4 and increasing the expression of AhR, IL-22 and cAMP.


Assuntos
Colite Ulcerativa , Ácido Acético , Azul Alciano , Animais , Antioxidantes/farmacologia , Colite Ulcerativa/tratamento farmacológico , Colite Ulcerativa/metabolismo , Nucleotídeo Cíclico Fosfodiesterase do Tipo 4/uso terapêutico , Amarelo de Eosina-(YS)/uso terapêutico , Hematoxilina/uso terapêutico , Fator 2 Relacionado a NF-E2/metabolismo , Polissacarídeos/farmacologia , Ratos , Receptores de Hidrocarboneto Arílico/uso terapêutico
12.
Redox Rep ; 27(1): 128-138, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-35754320

RESUMO

OBJECTIVES: Ulcerative colitis (UC), an inflammatory bowel disease, affects mucosal lining of colon leading to inflammation and ulcers. Sulforaphane is a natural compound obtained from cruciferous vegetables. We aimed to investigate potential therapeutic effects of sulforaphane in experimentally induced UC in rats through affection antioxidant activity, mitochondrial biogenesis and DNA polymerization. METHODS: UC was induced in rats via an intracolonic single administration of 2 ml of 4% acetic acid. UC rats were treated with 15 mg/kg sulforaphane. Samples of colon were used to investigate gene expression and protein levels of peroxisome proliferator-activated receptor-gamma coactivator (PGC-1), mitochondrial transcription factor A (TFAM), mammalian target of rapamycin (mTOR), cyclin D1, nuclear factor erythroid 2-related factor-2 (Nrf2), heme Oxygenase-1 (HO-1) and proliferating cell nuclear antigen (PCNA). RESULTS: UC showed dark distorted Goblet cell nucleus with disarranged mucus granules and no distinct brush border with atypical microvilli. All morphological changes were improved by treating with sulforaphane. Finally, treatment with sulforaphane significantly increased expression of PGC-1, TFAM, Nrf2 and HO-1 associated with reduction in expression of mTOR, cyclin D1 and PCNA. CONCLUSION: Sulforaphane could cure UC in rats. The protective activity can be explained by enhancing antioxidant activity, elevating mitochondrial biogenesis and inhibiting DNA polymerization.


Assuntos
Colite Ulcerativa , Fator 2 Relacionado a NF-E2 , Animais , Antioxidantes/metabolismo , Colite Ulcerativa/induzido quimicamente , Colite Ulcerativa/tratamento farmacológico , Colite Ulcerativa/metabolismo , Ciclina D1 , DNA , Isotiocianatos , Mamíferos/genética , Mamíferos/metabolismo , Fator 2 Relacionado a NF-E2/metabolismo , Biogênese de Organelas , Polimerização , Antígeno Nuclear de Célula em Proliferação , Ratos , Sulfóxidos , Serina-Treonina Quinases TOR
13.
Redox Rep ; 27(1): 9-20, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-35080474

RESUMO

OBJECTIVE: Genistein is a recognized isoflavone present in soybeans with antioxidant, anti-inflammatory, antiangiogenic and antitumor activities. This study aimed to test ability of genistein in modulating versican/platelet derived growth factor (PDGF) axis in HCC. METHODS: HCC was experimentally induced in male Sprague-Dawley rats then treated with 25 or 75 mg/kg genistein. Antioxidant activities of genistein was assessed by measuring the gene expression of Nrf2 and the hepatic levels of malondialdehyde (MDA), superoxide dismutase (SOD) and reduced glutathione. Expression of versican, PDGF, protein kinase C (PKC) and ERK-1 protein was assessed by Western blotting and immunostaining. RESULTS: HCC induced an elevation in oxidative stress, PDGF, versican, PKC and ERK protein expression levels. Genistein significantly reduced an HCC-induced increase in oxidative stress. Moreover, genistein dose-dependently reduced HCC-induced elevation of PDGF, versican, PKC and ERK protein expression levels. Moreover, genistein helped retain a normal hepatocyte structure and reduced fibrous tissue deposition, especially in high dose. CONCLUSIONS: Genistein exerted antitumor and antioxidant effects and therefore suppress HCC development via inhibition of the PDGF/versican bidirectional axis, suppressing both ERK1 and PKC as downstream regulators. Therefore, genistein is a potential novel therapeutic candidate for improving the outcome of patients with HCC.


Assuntos
Carcinoma Hepatocelular , Genisteína , Neoplasias Hepáticas , Estresse Oxidativo , Transdução de Sinais , Animais , Carcinoma Hepatocelular/induzido quimicamente , Carcinoma Hepatocelular/tratamento farmacológico , Genisteína/farmacologia , Neoplasias Hepáticas/induzido quimicamente , Neoplasias Hepáticas/tratamento farmacológico , Masculino , Fator de Crescimento Derivado de Plaquetas , Ratos , Ratos Sprague-Dawley , Tioacetamida , Versicanas
14.
Cytokine ; 148: 155710, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-34564023

RESUMO

The pathogenicity of HCC could be enhanced by TNF-α and NFκB, which are crucial parts of the inflammatory pathway inside the HCC microenvironment. Therefore, we aimed to discover the therapeutic effects of QNZ, an inhibitor of both TNF-α and NFκB, in an experimental model of HCC in rats. HCC was experimentally induced in rats by thioacetamide, and some of the rats were treated with QNZ. The expression levels of nuclear factor (NF)κB, tumor necrosis factor (TNF)-α, apoptosis signal regulating kinase (ASK)-1, ß-catenin, glycogen synthase kinase (GSK)-3 and TNF receptor-associated factor (TRAF) were examined in hepatic samples. In addition, hepatic tissues were stained with hematoxylin/eosin and anti-TNF-α antibodies. QNZ blocked HCC-induced expression of both NFκB and TNF-α. It significantly reduced both α-fetoprotein and the average number of nodules and increased the survival rate of the HCC rats. Moreover, hematoxylin and eosin liver sections from the HCC rats showed vacuolated cytoplasm and necrotic nodules. All of these effects were alleviated by QNZ treatment. Finally, treating HCC rats with QNZ resulted in a reduction in the expression of TRAF, ASK-1 and ß-catenin, as well as increased expression of GSK-3. In conclusion, inhibition of the inflammatory pathway in HCC with QNZ produced therapeutic effects, as indicated by an increased survival rate, reduced serum α-fetoprotein levels, decreased liver nodules and improved the hepatocyte structure. In addition, QNZ significantly reduced the expression of TRAF, ASK-1 and ß-catenin that were associated with increased expression of GSK-3.


Assuntos
Carcinoma Hepatocelular/tratamento farmacológico , Inflamação/tratamento farmacológico , Neoplasias Hepáticas/tratamento farmacológico , Éteres Fenílicos/uso terapêutico , Quinazolinas/uso terapêutico , Animais , Carcinoma Hepatocelular/complicações , Carcinoma Hepatocelular/patologia , Modelos Animais de Doenças , Quinase 3 da Glicogênio Sintase/metabolismo , Hepatócitos/efeitos dos fármacos , Hepatócitos/metabolismo , Hepatócitos/patologia , Inflamação/complicações , Fígado/efeitos dos fármacos , Fígado/metabolismo , Fígado/patologia , Neoplasias Hepáticas/complicações , Neoplasias Hepáticas/patologia , MAP Quinase Quinase Quinase 5/metabolismo , NF-kappa B/metabolismo , Especificidade de Órgãos/efeitos dos fármacos , Éteres Fenílicos/farmacologia , Quinazolinas/farmacologia , Ratos , Ratos Sprague-Dawley , Análise de Sobrevida , Fator 2 Associado a Receptor de TNF/metabolismo , Fator de Necrose Tumoral alfa/metabolismo , alfa-Fetoproteínas/metabolismo , beta Catenina/metabolismo
15.
Oncol Lett ; 21(2): 173, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-33552290

RESUMO

Hepatocellular carcinoma (HCC) is one of the most common types of primary liver cancer. Despite advancements in the treatment strategies of HCC, there is an urgent requirement to identify and develop novel therapeutic drugs that do not lead to resistance. These novel agents should have the potential to influence the primary mechanisms participating in the pathogenesis of HCC. Heparan sulfate proteoglycans (HSPGs) are major elements of the extracellular matrix that perform structural and signaling functions. HSPGs protect against invasion of tumor cells by preventing cell infiltration and intercellular adhesion. Several enzymes, such as heparanase, matrix metalloproteinase-9 and sulfatase-2, have been reported to affect HSPGs, leading to their degradation and thus enhancing tumor invasion. In addition, some compounds that are produced from the degradation of HSPGs, including glypican-3 and syndecan-1, enhance tumor progression. Thus, the identification of enzymes that affect HSPGs or their degradation products in HCC may lead to the development of novel therapeutic targets. The present review discusses the main enzymes and compounds associated with HSPGs, and their involvement with the pathogenicity of HCC.

17.
Biomed Pharmacother ; 135: 111216, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-33433352

RESUMO

Destructive effects of hepatocellular carcinoma (HCC) is enhanced by many cellular mechanisms including activation of fibrosis, inflammation and tumor invasion. Therefore, this study was conducted to investigate the therapeutic effects of iCRT14, ß-catenin blocker, on HCC. In addition, the molecular effects of iCRT14 will be investigated on inflammation, fibrosis and tumor invasion pathways. After inducting HCC in rats, hepatic tissues were used for determination of the expression of ß-catenin, nuclear factor (NF)κB, tumor necrosis factor (TNF)-α, interleukin (IL)-1ß, matrix metalloproteinase (MMP)9, transforming growth factor (TGF)-ß1, fibroblast growth factor (FGF)-2 and integrin-ß6. Hepatic tissues were stained with hematoxylin/eosin and with anti-Ki67. Results revealed that iCRT14 significantly increased the survival percent of HCC rats, reduced both α-fetoprotein and average number of nodules. In parallel, hepatic sections from HCC rats stained with hematoxylin/eosin revealed vacuolated cytoplasm and necrotic nodules, which were attenuated by treatment with iCRT14. Finally, treating HCC rats with iCRT14 resulted in reduction of the expression of NFκB, TNF-α, IL-1ß, TGF-ß1, MMP9, FGF-2 and integrin-ß6. In conclusion, iCRT14 treatment exhibited antitumor effects against HCC through impairing ß-catenin signaling pathway. iCRT14 suppressed liver tissue inflammation, fibrosis and angiogenesis, possibly via reducing expression of NFκB, TNF-α, IL-1ß, TGF-ß1, MMP-9, FGF-2.


Assuntos
Anti-Inflamatórios/farmacologia , Antineoplásicos/farmacologia , Movimento Celular/efeitos dos fármacos , Mediadores da Inflamação/metabolismo , Neoplasias Hepáticas Experimentais/tratamento farmacológico , Piridinas/farmacologia , Pirróis/farmacologia , Tiazolidinedionas/farmacologia , beta Catenina/antagonistas & inibidores , Animais , Citocinas/genética , Citocinas/metabolismo , Fator 2 de Crescimento de Fibroblastos/genética , Fator 2 de Crescimento de Fibroblastos/metabolismo , Fibrose , Neoplasias Hepáticas Experimentais/induzido quimicamente , Neoplasias Hepáticas Experimentais/metabolismo , Neoplasias Hepáticas Experimentais/patologia , Masculino , Metaloproteinase 9 da Matriz/genética , Metaloproteinase 9 da Matriz/metabolismo , Invasividade Neoplásica , Neovascularização Patológica , Ratos Sprague-Dawley , Tioacetamida , Fator de Crescimento Transformador beta1/genética , Fator de Crescimento Transformador beta1/metabolismo , Via de Sinalização Wnt , beta Catenina/metabolismo
18.
Nutr Cancer ; 73(8): 1498-1510, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-32718197

RESUMO

Fucoidan is sulfated polysaccharide of brown seaweed. It offers various pharmacological actions like anti-inflammatory, anti-bacterial and anti-tumor activities. Therefore, we aimed to investigate the effect of targeting microRNA-143 and inflammatory pathway by Fucoidan on experimentally induced hepatocellular carcinoma (HCC) in rats. HCC is experimentally induced in Sprague Dawley by thioacetamide. Rats were treated with 100 mg/kg and 200 mg/kg Fucoidan. Hepatic sections were stained with hematoxylin/esosin for investigation of cell integrity. Moreover, hepatic sections were immunohistochemically stained with antibodies for ki67, TNF-α, and IL-1ß. Finally, hepatic tissues were investigated for expression of miR-143, NF-κB, TNF-α, and IL-1ß. We found that treating HCC with Fucoidan significantly reduced HCC-induced elevation in oxidative stress. Moreover, Fucoidan reduced HCC-induced in expression of miR-143, NF-κB, TNF-α, and IL-1ß. Finally, Fucoidan attenuated pseudohepatic lobules, broad fibrous septa and vacuolar to ballooning degeneration associated with reduction of immunostaining of ki67, TNF-α, and IL-1ß. Fucoidan elevated the survival of HCC rats and reduced their serum AFP. In addition, Fucoidan treatment revealed reduction in the expression of miR-143 associated with antioxidant and anti-inflammatory activities in HCC rats.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , MicroRNAs , Animais , Carcinoma Hepatocelular/tratamento farmacológico , Inflamação/tratamento farmacológico , Neoplasias Hepáticas/tratamento farmacológico , MicroRNAs/genética , NF-kappa B , Polissacarídeos/farmacologia , Ratos , Ratos Sprague-Dawley
19.
Saudi Pharm J ; 28(7): 844-849, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-32647486

RESUMO

Epilepsy is a common neurologic disorder, which is efficiently treated with carbamazepine and valproic acid. Moreover, Saudi Ministry of Health implemented a new E-system for Poison Control Centers called Awtar to enhance technology utilization in ensuring patients' satisfaction and to improve treatment outcomes. Therefore, we conducted this study to assess appropriateness of indication of requests and therapeutic levels of carbamazepine and valproic acid in Tabuk area, North West Saudi Arabia. This is a retrospective observational study conducted in Poison Control & Forensic Chemistry Center, Tabuk, Saudi Arabia. Patients' data were obtained for years 2018 and 2019. The blood levels of carbamazepine and valproic acid were measured by Therapeutic Drug Monitoring (TDM) Unit. We selected patients treated with either valproic acid or carbamazepine alone without any history of drug allergy. Data of 264 patients were extracted from Awtar E-system. Serum carbamazepine levels were within therapeutic range in 114 patients (75.50%), above-therapeutic range in 13 patients (8.61%) and sub-therapeutic levels in 24 patients (15.89%). Regarding serum valproic acid, it is within therapeutic range in 62 patients (54.87%), above-therapeutic range in 11 patients (9.73%) and sub-therapeutic levels in 40 patients (35.40%). In conclusion, this study gives information about partial appropriateness of usage of carbamazepine and low level of appropriateness of valproic acid. However, more efforts are needed to improve results of appropriateness of indication of antiepileptic drugs.

20.
Cells ; 9(6)2020 06 26.
Artigo em Inglês | MEDLINE | ID: mdl-32604774

RESUMO

Painful peripheral neuropathy affects millions of people worldwide. Peripheral neuropathy develops in patients with various diseases, including rare familial or acquired amyloid polyneuropathies, as well as some common diseases, including type 2 diabetes mellitus and several chronic inflammatory diseases. Intriguingly, these diseases share a histopathological feature-deposits of amyloid-forming proteins in tissues. Amyloid-forming proteins may cause tissue dysregulation and damage, including damage to nerves, and may be a common cause of neuropathy in these, and potentially other, diseases. Here, we will discuss how amyloid proteins contribute to peripheral neuropathy by reviewing the current understanding of pathogenic mechanisms in known inherited and acquired (usually rare) amyloid neuropathies. In addition, we will discuss the potential role of amyloid proteins in peripheral neuropathy in some common diseases, which are not (yet) considered as amyloid neuropathies. We conclude that there are many similarities in the molecular and cell biological defects caused by aggregation of the various amyloid proteins in these different diseases and propose a common pathogenic pathway for "peripheral amyloid neuropathies".


Assuntos
Proteínas Amiloidogênicas/metabolismo , Doenças do Sistema Nervoso Periférico/genética , Humanos
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