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1.
Rev. bras. ciênc. avic ; 25(1): eRBCA-2022-1675, 2023. tab
Artigo em Inglês | VETINDEX | ID: biblio-1416202

RESUMO

This study was conducted to evaluate the effect of feeding lupin kernel and faba bean as an alternative to soybean meal on the growth performance, blood profiles, relative organ weight, and hepatic fatty acid composition of broiler chicks. A total of 525, 1-day-old Ross 308 male chicks were randomly assigned into five groups with seven replicates. The treatments consisted of five experimental diets; corn-soybean meal without lupin or faba bean (as control), diets with lupin 5% or 10%, and diets with faba bean 5% or 10%. The body weight (BW) and average daily gain (ADG) were not significantly different among the groups during starter period. However, BW and ADG of chicks fed diets with 10% lupin and faba bean were significantly higher than those of 5% lupin and faba bean during grower period (p<0.01). The feed conversion ratio was significantly lower in the group fed diets with 10% lupin and faba bean than the control during total rearing periods (p<0.001). There were no significant differences in blood profiles among the groups. As for the hepatic fatty acid composition, the levels of total polyunsaturated fatty acids and total ω6 in chicks fed lupin and faba bean were significantly higher than the control. It was suggested that dietary lupin and faba bean could enhance the incorporation of the beneficial fatty acids into liver fraction. In conclusion, supplementation of lupin and faba bean up to 10% can be used as an alternative to soybean meal in broiler diets.(AU)


Assuntos
Animais , Galinhas/fisiologia , Lupinus/efeitos adversos , Vicia faba/efeitos adversos , Ácidos Graxos/análise
2.
QJM ; 111(11): 769-778, 2018 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-30016493

RESUMO

BACKGROUND: Tumor-associated macrophages (TAMs) are important determinants of intratumoral immune evasion, neoangiogenesis, extracellular matrix remodeling and dysregulated tumor cell proliferation. Our prior studies revealed that macrophage-derived, but not tumor cell-derived, macrophage migration inhibitory factor (MIF), is an important determinant of TAM alternative activation and M2 polarization. AIM: Because MIF is historically thought to initiate signaling via a receptor-dependent, outside-in mode of action, we wished to investigate the specific contributions of tumor-derived vs. macrophage-derived MIF to M2 marker expression during macrophage polarization. DESIGN: Murine oral squamous cell-carcinoma cells (SCCVII) were co-cultured with either the RAW 264.7 mouse macrophage cell line or mouse primary bone marrow-derived macrophages in the context of MIF genetic loss/inhibition individually or in combination each cell type. METHODS: Twelve well Transwell plates were used to co-culture SCCVII cells and RAW 264.7, MIF+/+ or MIF-/- macrophages treated with/without the small molecule MIF inhibitor, 4-iodo-6-phenylpyrimidine and incubated in the presence or absence of interleukin (IL-4) for 48 h. Macrophages were analyzed by quantitative real-time polymerase chain reaction and/or immunoblotting for relative macrophage polarization marker expression. RESULTS: IL-4 treatment synergizes with SCCVII co-culture in inducing the expression of macrophage M2 markers and loss or inhibition of macrophage-derived MIF significantly reduces both IL-4 alone and IL-4/SCCVII co-culture-induced macrophage M2 marker expression. CONCLUSION: These studies identify an important and dominant requirement for macrophage MIF in maximal Th2-cytokine and oral squamous carcinoma cell-induced macrophage polarization and M2 marker expression.


Assuntos
Carcinoma de Células Escamosas/metabolismo , Oxirredutases Intramoleculares/metabolismo , Fatores Inibidores da Migração de Macrófagos/metabolismo , Macrófagos/citologia , Animais , Carcinoma de Células Escamosas/imunologia , Linhagem Celular Tumoral , Proliferação de Células , Técnicas de Cocultura , Interleucina-4/farmacologia , Oxirredutases Intramoleculares/antagonistas & inibidores , Fatores Inibidores da Migração de Macrófagos/antagonistas & inibidores , Macrófagos/imunologia , Camundongos , Camundongos Endogâmicos C57BL , Camundongos Knockout , Neovascularização Patológica/metabolismo , Pirimidinas/farmacologia , Células RAW 264.7
3.
Ann Oncol ; 28(10): 2517-2525, 2017 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-28961843

RESUMO

BACKGROUND: Advanced-stage mycosis fungoides (MF)/Sézary syndrome (SS) patients are weighted by an unfavorable prognosis and share an unmet clinical need of effective treatments. International guidelines are available detailing treatment options for the different stages but without recommending treatments in any particular order due to lack of comparative trials. The aims of this second CLIC study were to retrospectively analyze the pattern of care worldwide for advanced-stage MF/SS patients, the distribution of treatments according to geographical areas (USA versus non-USA), and whether the heterogeneity of approaches has potential impact on survival. PATIENTS AND METHODS: This study included 853 patients from 21 specialist centers (14 European, 4 USA, 1 each Australian, Brazilian, and Japanese). RESULTS: Heterogeneity of treatment approaches was found, with up to 24 different modalities or combinations used as first-line and 36% of patients receiving four or more treatments. Stage IIB disease was most frequently treated by total-skin-electron-beam radiotherapy, bexarotene and gemcitabine; erythrodermic and SS patients by extracorporeal photochemotherapy, and stage IVA2 by polychemotherapy. Significant differences were found between USA and non-USA centers, with bexarotene, photopheresis and histone deacetylase inhibitors most frequently prescribed for first-line treatment in USA while phototherapy, interferon, chlorambucil and gemcitabine in non-USA centers. These differences did not significantly impact on survival. However, when considering death and therapy change as competing risk events and the impact of first treatment line on both events, both monochemotherapy (SHR = 2.07) and polychemotherapy (SHR = 1.69) showed elevated relative risks. CONCLUSION: This large multicenter retrospective study shows that there exist a large treatment heterogeneity in advanced MF/SS and differences between USA and non-USA centers but these were not related to survival, while our data reveal that chemotherapy as first treatment is associated with a higher risk of death and/or change of therapy and thus other therapeutic options should be preferable as first treatment approach.


Assuntos
Micose Fungoide/terapia , Síndrome de Sézary/terapia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Austrália/epidemiologia , Brasil/epidemiologia , Criança , Europa (Continente)/epidemiologia , Feminino , Humanos , Japão/epidemiologia , Masculino , Oncologia/métodos , Oncologia/estatística & dados numéricos , Pessoa de Meia-Idade , Micose Fungoide/mortalidade , Micose Fungoide/patologia , Estadiamento de Neoplasias , Estudos Retrospectivos , Síndrome de Sézary/mortalidade , Síndrome de Sézary/patologia , Estados Unidos/epidemiologia , Adulto Jovem
4.
Rev. bras. pesqui. méd. biol ; Braz. j. med. biol. res;48(2): 111-119, 02/2015. graf
Artigo em Inglês | LILACS | ID: lil-735847

RESUMO

Pancreatic cancer is the fourth leading cause of cancer death. Gemcitabine is widely used as a chemotherapeutic agent for the treatment of pancreatic cancer, but the prognosis is still poor. Berberine, an isoquinoline alkaloid extracted from a variety of natural herbs, possesses a variety of pharmacological properties including anticancer effects. In this study, we investigated the anticancer effects of berberine and compared its use with that of gemcitabine in the pancreatic cancer cell lines PANC-1 and MIA-PaCa2. Berberine inhibited cell growth in a dose-dependent manner by inducing cell cycle arrest and apoptosis. After berberine treatment, the G1 phase of PANC-1 cells increased by 10% compared to control cells, and the G1 phase of MIA-PaCa2 cells was increased by 2%. Whereas gemcitabine exerts antiproliferation effects through S-phase arrest, our results showed that berberine inhibited proliferation by inducing G1-phase arrest. Berberine-induced apoptosis of PANC-1 and MIA-PaCa2 cells increased by 7 and 2% compared to control cells, respectively. Notably, berberine had a greater apoptotic effect in PANC-1 cells than gemcitabine. Upon treatment of PANC-1 and MIA-PaCa2 with berberine at a half-maximal inhibitory concentration (IC50), apoptosis was induced by a mechanism that involved the production of reactive oxygen species (ROS) rather than caspase 3/7 activation. Our findings showed that berberine had anti-cancer effects and may be an effective drug for pancreatic cancer chemotherapy.


Assuntos
Adulto , Feminino , Humanos , Pessoa de Meia-Idade , Transtorno do Deficit de Atenção com Hiperatividade , Psiquiatria Infantil/educação , Docentes , Deficiências da Aprendizagem , Competência Profissional/normas , Análise de Variância , Brasil , Estudos de Viabilidade , Instituições Acadêmicas , Autorrelato , Ajustamento Social , Inquéritos e Questionários
5.
Braz J Med Biol Res ; 48(2): 111-9, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25517919

RESUMO

Pancreatic cancer is the fourth leading cause of cancer death. Gemcitabine is widely used as a chemotherapeutic agent for the treatment of pancreatic cancer, but the prognosis is still poor. Berberine, an isoquinoline alkaloid extracted from a variety of natural herbs, possesses a variety of pharmacological properties including anticancer effects. In this study, we investigated the anticancer effects of berberine and compared its use with that of gemcitabine in the pancreatic cancer cell lines PANC-1 and MIA-PaCa2. Berberine inhibited cell growth in a dose-dependent manner by inducing cell cycle arrest and apoptosis. After berberine treatment, the G1 phase of PANC-1 cells increased by 10% compared to control cells, and the G1 phase of MIA-PaCa2 cells was increased by 2%. Whereas gemcitabine exerts antiproliferation effects through S-phase arrest, our results showed that berberine inhibited proliferation by inducing G1-phase arrest. Berberine-induced apoptosis of PANC-1 and MIA-PaCa2 cells increased by 7 and 2% compared to control cells, respectively. Notably, berberine had a greater apoptotic effect in PANC-1 cells than gemcitabine. Upon treatment of PANC-1 and MIA-PaCa2 with berberine at a half-maximal inhibitory concentration (IC50), apoptosis was induced by a mechanism that involved the production of reactive oxygen species (ROS) rather than caspase 3/7 activation. Our findings showed that berberine had anti-cancer effects and may be an effective drug for pancreatic cancer chemotherapy.


Assuntos
Antineoplásicos Fitogênicos/uso terapêutico , Apoptose/efeitos dos fármacos , Berberina/uso terapêutico , Fase G1/efeitos dos fármacos , Neoplasias Pancreáticas/tratamento farmacológico , Espécies Reativas de Oxigênio/metabolismo , Antimetabólitos Antineoplásicos/uso terapêutico , Caspase 3/efeitos dos fármacos , Caspase 7/efeitos dos fármacos , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Sobrevivência Celular/efeitos dos fármacos , Desoxicitidina/análogos & derivados , Desoxicitidina/uso terapêutico , Citometria de Fluxo , Humanos , Fatores de Tempo , Gencitabina
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