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1.
An Acad Bras Cienc ; 91(3): e20180994, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31596391

RESUMO

Herbal medicines are efficient to reduce side effects in the fight against glioblastoma, which plays a critical role within brain cancer species. The recent studies designated for testing the effects of lichens that have shown numerous anticancer activities on glioblastoma so far. In the present study, different concentrations of water extract obtained from Usnea longissima Ach. were used in order to determine cytotoxic (via 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide and lactate dehydrogenase tests), antioxidant (via total antioxidant capacity test), pro-oxidant (via total oxidant status test) and genotoxic (via 8-hydroxy-2'-deoxyguanosine test) effects of them on human U87MG-glioblastoma cancer cell lines. Primary mixed glial-neuronal non-cancerous cells from Sprague-Dawley rats were also utilized to measure the effects of treatments on non-cancerous cells. Based on median inhibitory concentration values, the data belonged to non-cancerous cells (2486.71 mg/L) showed distinct towering compared to U87MG (80.93 mg/L) cells. The viability of non-cancerous and U87MG cells exposed to extract is decreased in a dose dependent manner. It was also showed that low concentrations of extract notably increased total antioxidant capacity on non-cancerous cells. In addition, various phenolic compounds in extract were detected through high-performance liquid chromatography. The recent results encourage that extract will be able to have therapeutic potential against glioblastoma.


Assuntos
Antioxidantes/farmacologia , Neoplasias Encefálicas/tratamento farmacológico , Glioblastoma/tratamento farmacológico , Extratos Vegetais/farmacologia , Usnea/química , Animais , Antioxidantes/uso terapêutico , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Dano ao DNA/efeitos dos fármacos , Humanos , Estresse Oxidativo/efeitos dos fármacos , Extratos Vegetais/uso terapêutico , Ratos , Ratos Sprague-Dawley
2.
J Assoc Physicians India ; 67(8): 66-68, 2019 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-31562721

RESUMO

Supplemental antioxidants are being prescribed by medical practitioners without considering its ill effects at higher doses. Antioxidants dosing has not been standardized and optimum or recommended daily dose is inconsistent too. Literature and Cochrane database search for review and meta analysis for efficacy of preventing and treating chronic disorders like cardiovascular diseases, diabetes, cancer, infertility etc shows inconclusive or negative results. Despite lack of evidence these drugs are rampantly being prescribed without any specific indication. Antioxidants are extensively being marketed too and their over the counter availability is again is the reason for its inappropriate use by consumers. Need is to practice evidence based medicine, define recommended daily doses with upper intake levels and antioxidants should be prescribed only in profound deficiency states.


Assuntos
Antioxidantes/uso terapêutico , Doença Crônica/prevenção & controle , Humanos
3.
Adv Exp Med Biol ; 1178: 103-112, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31493224

RESUMO

Coenzyme Q10 (CoQ10) is a vitamin-like substance which functions as an electron carrier within the mitochondrial respiratory chain, as well as serving as an important intracellular antioxidant. Most of the body's CoQ10 requirements are met by endogenous synthesis, although the capacity for CoQ10 production decreases substantially with increasing age. In this article we have reviewed the potential role of CoQ10 supplementation in the treatment of tissue fibrosis, which has been implicated in the age-related loss of function of various organs including the heart. Clinical studies have indicated that CoQ10 supplementation may decrease the level of cardiovascular fibrosis to which older individuals are subjected, and thereby improve cardiovascular function and reduce the risk of cardiovascular associated mortality. Although the factors responsible for the anti-fibrotic action of CoQ10 have yet to be fully elucidated, its antioxidant and anti-inflammatory functions are thought to be major contributors to its clinical efficacy in the treatment of this age-related disorder.


Assuntos
Antioxidantes , Ubiquinona/análogos & derivados , Antioxidantes/uso terapêutico , Doenças Cardiovasculares/tratamento farmacológico , Doenças Cardiovasculares/patologia , Fibrose/tratamento farmacológico , Humanos , Ubiquinona/uso terapêutico
4.
Arch Virol ; 164(12): 2895-2908, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31531742

RESUMO

Dengue virus (DENV) is a mosquito-borne arbovirus that causes febrile illness and can lead to a potentially lethal disease. The mechanism of disease pathogenesis is not completely understood, and there are currently no vaccines or therapeutic drugs available to protect against all four serotypes of DENV. Although many reasons have been suggested for the development of the disease, dengue studies have shown that, during DENV infection, there is an imbalance between oxidants and antioxidants that disrupts homeostasis. An increase in reactive oxygen species (ROS) levels triggers the sudden release of cytokines, which can lead to plasma leakage and other severe symptoms. In the present review, we give an overview of the oxidative stress response and its effect on the progression of dengue disease. We also discuss the role of oxidative-stress-associated molecules in disease prognostic and therapeutics.


Assuntos
Vírus da Dengue/patogenicidade , Dengue/diagnóstico , Espécies Reativas de Oxigênio/metabolismo , Antioxidantes/farmacologia , Antioxidantes/uso terapêutico , Citocinas , Dengue/tratamento farmacológico , Dengue/imunologia , Dengue/metabolismo , Vírus da Dengue/efeitos dos fármacos , Vírus da Dengue/imunologia , Homeostase , Humanos , Estresse Oxidativo/efeitos dos fármacos , Prognóstico , Sorogrupo , Virulência/efeitos dos fármacos
5.
Khirurgiia (Mosk) ; (8): 91-94, 2019.
Artigo em Russo | MEDLINE | ID: mdl-31464282

RESUMO

A successful administration of NPWT-therapy combined with Reamberin infusion for gastroenterostomy failure after stomach resection is reported in the article. It was noted that antioxidant/antihypoxic drug Reamberin combined with NPWT-therapy has a positive metabolic effect and results more active and rapid healing of the wounds. The absence of adverse effects of the drug allows us to recommend its inclusion into complex treatment of patients with this pathology.


Assuntos
Antioxidantes/uso terapêutico , Gastrectomia/métodos , Gastroenterostomia/efeitos adversos , Fármacos Gastrointestinais/uso terapêutico , Meglumina/análogos & derivados , Tratamento de Ferimentos com Pressão Negativa , Estômago/cirurgia , Succinatos/uso terapêutico , Gastrectomia/efeitos adversos , Humanos , Meglumina/uso terapêutico , Cicatrização/efeitos dos fármacos
6.
Life Sci ; 234: 116780, 2019 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-31430453

RESUMO

Bronchial asthma and obesity are common health problems. Obesity is already responsible for 300,000 deaths per year. AIMS: The aim of the present study was to assess whether apocynin, alpha lipoic acid and probiotic administration in combination with low-fat diet supplementation influences the levels of antioxidant enzymes in the pulmonary tissues of obese asthmatic mice. MAIN METHODS: The study was performed on male C57/BL6 mice divided into 10 groups: (I) control; (II) asthma; (III) obesity; (IV) asthma + obesity; (V) asthma + obesity + apocynin p.o. 15 mg/kg/day for 12 weeks; (VI) asthma + obesity + low-fat diet for 12 weeks; (VII) asthma + obesity + low-fat diet for 12 weeks with apocynin p.o. 15 mg/kg/day; (VIII) asthma + obesity + low-fat diet with probiotics for 12 weeks; (IX) asthma + obesity + low-fat diet for 12 weeks with lipoic acid p.o. 100 mg/kg/day for 12 weeks; (X) asthma + obesity + standard diet with probiotics for 12 weeks. Superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx) and glutathione reductase (GR) activity were examined. The administration of apocynin alone and apocynin in combination with a low-fat diet resulted in a significant increase in SOD values (respectively p < 0.001; p = 0.010). Application of probiotics resulted in a decrease in CAT activity (p = 0.037) and an increase in GPx activity (p < 0.001) compared to obese asthmatic mice. The administration of lipoic acid resulted in an increase in GR activity (p = 0.024 vs. control). KEY FINDINGS: Supplementation containing apocynin, lipoic acid and probiotics has a positive influence on the antioxidant capacity of the pulmonary tissues of obese asthmatic mice. SIGNIFICANCE: These results may contribute to the development of new therapeutic approaches.


Assuntos
Acetofenonas/uso terapêutico , Antioxidantes/uso terapêutico , Asma/tratamento farmacológico , Obesidade/tratamento farmacológico , Probióticos/uso terapêutico , Ácido Tióctico/uso terapêutico , Animais , Asma/complicações , Asma/metabolismo , Catalase/análise , Catalase/metabolismo , Glutationa Peroxidase/análise , Glutationa Peroxidase/metabolismo , Pulmão/efeitos dos fármacos , Pulmão/metabolismo , Masculino , Camundongos Endogâmicos C57BL , Camundongos Obesos , Obesidade/complicações , Obesidade/metabolismo , Estresse Oxidativo/efeitos dos fármacos , Superóxido Dismutase/análise , Superóxido Dismutase/metabolismo
7.
Cancer Radiother ; 23(5): 449-465, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31400956

RESUMO

Nowadays, ionizing radiations have numerous applications, especially in medicine for diagnosis and therapy. Pharmacological radioprotection aims at increasing detoxification of free radicals. Radiomitigation aims at improving survival and proliferation of damaged cells. Both strategies are essential research area, as non-contained radiation can lead to harmful effects. Some advances allowing the comprehension of normal tissue injury mechanisms, and the discovery of related predictive biomarkers, have led to developing several highly promising radioprotector or radiomitigator drugs. Next to these drugs, a growing interest does exist for biotherapy in this field, including gene therapy and cell therapy through mesenchymal stem cells. In this review article, we provide an overview of the management of radiation damages to healthy tissues via gene or cell therapy in the context of radiotherapy. The early management aims at preventing the occurrence of these damages before exposure or just after exposure. The late management offers promises in the reversion of constituted late damages following irradiation.


Assuntos
Terapia Baseada em Transplante de Células e Tecidos/métodos , Terapia Genética/métodos , Lesões por Radiação/prevenção & controle , Proteção Radiológica/métodos , Amifostina/uso terapêutico , Animais , Antioxidantes/uso terapêutico , Ensaios Clínicos como Assunto , Fracionamento da Dose de Radiação , Edição de Genes , Vetores Genéticos/uso terapêutico , Proteínas de Choque Térmico/genética , Proteínas de Choque Térmico/uso terapêutico , Transplante de Células-Tronco Hematopoéticas , Humanos , Peptídeos e Proteínas de Sinalização Intercelular/genética , Peptídeos e Proteínas de Sinalização Intercelular/uso terapêutico , Transplante de Células-Tronco Mesenquimais , Camundongos , Oxirredutases/genética , Oxirredutases/uso terapêutico , Lesões por Radiação/etiologia , Lesões por Radiação/terapia , Lesões Experimentais por Radiação/prevenção & controle , Lesões Experimentais por Radiação/terapia , Protetores contra Radiação/farmacologia , Protetores contra Radiação/uso terapêutico , Proteínas Recombinantes/genética , Proteínas Recombinantes/uso terapêutico , Fatores de Tempo
8.
Pol Merkur Lekarski ; 47(277): 35-39, 2019 Jul 29.
Artigo em Polonês | MEDLINE | ID: mdl-31385946

RESUMO

Age-related macular degeneration (AMD) is a progressively degenerative disease at the central area of the retina, which results in severe visual impairment. It is the leading cause of irreversible blindness among people aged over 65 in developed countries. Therapies that focus on prevention through optimization of modifiable risk factors such as diet and nutritional status are key approaches to reducing the burden of disease. An adequate diet, especially rich in antioxidant compounds, seems to play an important role in this case. Available scientific data suggest that vitamins A, E, C and carotenoids, in particular lutein and zeaxantine and some minerals, may play an important role in the prevention and / or delay of AMD. There are also new data on the importance of other ingredients such as flavonoids in the AMD development. In this work, based on the available data, the study reviews the relationship between the intake of selected antioxidant nutrients and age-related macular degeneration.


Assuntos
Antioxidantes , Degeneração Macular , Vitamina A , Vitaminas , Antioxidantes/uso terapêutico , Suplementos Nutricionais , Humanos , Degeneração Macular/terapia , Vitamina A/uso terapêutico , Vitaminas/uso terapêutico
9.
Eur J Med Chem ; 181: 111579, 2019 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-31398616

RESUMO

Many bioactive agents have been extracted from plants or belong to functional foods and have been considered in the treatment of serious and multifactorial diseases, such as cancer. In particular, this review is focused on the anti-cancer properties owned by several natural products typically from the Mediterranean area. In some regions of the South of Italy, a lower cancer incidence has been observed. There is increasing evidence that adherence to a Mediterranean dietary pattern correlates with reduced risk of several cancer types. This could be mainly attributed to the typical lifestyle aspects of the Mediterranean diet, such as high consumption of fruit and vegetables. In this review, the main natural products of the Mediterranean area are discussed, with particular attention on their anti-cancer properties endowed with multi-target profiles.


Assuntos
Dieta Mediterrânea , Neoplasias/prevenção & controle , Anticarcinógenos/análise , Anticarcinógenos/uso terapêutico , Antioxidantes/análise , Antioxidantes/uso terapêutico , Frutas/química , Humanos , Neoplasias/dietoterapia , Azeite de Oliva/análise , Azeite de Oliva/uso terapêutico , Verduras/química , Vinho/análise
10.
Complement Ther Clin Pract ; 36: 170-175, 2019 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-31383435

RESUMO

BACKGROUND AND PURPOSE: Attention-deficit/hyperactivity disorder (ADHD) is one of the most common health disorders among children. Some patients do not respond to methylphenidate or cannot tolerate its side effects. Sweet almond syrup as a Persian Medicine preparation has been used for many years. This study aims to evaluate the efficacy and safety of sweet almond for ADHD children. MATERIALS AND METHODS: Fifty children aged 6-14 years with ADHD were recruited to the study. The participants were randomly assigned to two groups to receive either methylphenidate or sweet almond syrup. The outcomes were assessed using the Parent and Teacher ADHD Rating Scale every two weeks for 8 weeks. RESULTS: Results showed that the two treatments had similar effects on symptom reduction in ADHD children. No significant differences were observed between the two groups (F=2.3, df=1, p=0.13, F=0.57, df=1, p=0.47). CONCLUSION: Sweet almond may be an effective treatment for ADHD children.


Assuntos
Antioxidantes/uso terapêutico , Transtorno do Deficit de Atenção com Hiperatividade/tratamento farmacológico , Estimulantes do Sistema Nervoso Central/uso terapêutico , Metilfenidato/uso terapêutico , Extratos Vegetais/uso terapêutico , Prunus dulcis , Adolescente , Transtorno do Deficit de Atenção com Hiperatividade/fisiopatologia , Criança , Método Duplo-Cego , Feminino , Alimento Funcional , Humanos , Masculino
12.
Chem Biol Interact ; 310: 108729, 2019 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-31255636

RESUMO

A nutraceutical product can be defined as a substance that has a physiological benefit or provides protection against chronic diseases. The term nutraceutical is a hybrid term derived from the union of "nutrition" and "pharmaceutical". The list of studied nutraceuticals is constantly changing and reflects ongoing market developments, research and consumer interest. Spices, in addition to giving color and taste to foods, are also important nutraceutical. Spices have been an integral part of human diets and commerce for millennia but recently, the recognition of the link between health and nutrition has strengthened their importance in the food sector and sparked the interest of researchers who increasingly engage in trying to determine the mechanisms of action of spices and the countless beneficial properties attributed to them. Among the many existing spices, turmeric is one of the most studied for its antioxidant, anti-inflammatory, antibacterial and anticancer properties. The purpose of this review is to briefly summarize the fundamental characteristics of turmeric and give an overview of the use of this spice in several diseases.


Assuntos
Curcuma/fisiologia , Antibacterianos/uso terapêutico , Anti-Inflamatórios/uso terapêutico , Antineoplásicos/uso terapêutico , Antioxidantes/uso terapêutico , Suplementos Nutricionais , Especiarias
13.
Pol Merkur Lekarski ; 46(276): 263-267, 2019 Jun 28.
Artigo em Polonês | MEDLINE | ID: mdl-31260436

RESUMO

Herbhoneys are bee origin products. However, they differ from traditional honeys in the production method. The process of making herbhoneys is based on feeding bees with nourishments, which are a combination of sugar syrup and plant extracts. For the preparation of the nourishment, plants that do not produce nectar or honeydew are often used. Thanks to this treatment, ready-made herbhoney, apart from a rich composition of mineral compounds, may also contain active substances. Herbhoneys have a characteristic color, which is associated with its plant origin and chemical composition. They are used in the therapy and prevention of many diseases, and their healthpromoting effect is associated with the plant material used to prepare the nutrient solution. Research shows positive influence of pine herbhoney in the treatment of upper respiratory tract infections, or the use of nettle herbhoney in gastrointestinal disorders. There are diverse data on the elemental composition of herbhoneys compared to natural honey. However, the essential factor conditioning the mineral content is the origin of honey and herbahoneys used for analysis. Herbhoneys, like traditional honey, have antimicrobial activity. They have been shown to be bactericidal against gram-positive and gram-negative pathogenic bacteria. The content of bioactive substances in herbhoneys determines their high antioxidant potential. Studies also indicate the presence of polyphenols, which occurrence is not observed in natural honeys. Herbhoneys, despite numerous health-promoting properties, are not a popular products on the Polish market.


Assuntos
Antioxidantes , Mel , Extratos Vegetais , Animais , Antioxidantes/uso terapêutico , Extratos Vegetais/uso terapêutico , Polônia , Polifenóis
14.
Curr Med Chem ; 26(24): 4585-4605, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31284852

RESUMO

Gac, Momordica cochinchinensis (Lour.) Spreng. belongs to the Cucurbitaceae family. It is more considered as a super fruit. The demand for this plant is growing in countries where its reputation is high, including traditional countries of gac culture and countries fond of super fruits and food supplements. In these latter countries, the industrial strategy aims at producing high added value in food supplements or nutritional rich preparations. However, when marketing is not the driving force and claims have to be related to scientific data, the situation of gac is less "heavenly", mainly because its most remarkable properties are in the field of micronutrients. These latter components are indeed very important for health but their supplementation on healthy populations brings no significant advantage. This paper proposes to review aspects important for the nutritional reputation of this plant: where it comes from, how it is cultured to have an optimal nutritional composition, what is its composition and how it can impact health of consumers, in which products it is used and what are the regulations to use it in different markets. One important goal of this review is to give a critical and scientific approach to confirm data on this fruit, which has been promoted by marketing departments injecting so many wrong and unverified information. Missing data will be highlighted and potential positive applications are proposed all along the text.


Assuntos
Momordica/química , Anti-Inflamatórios/química , Antioxidantes/química , Antioxidantes/uso terapêutico , Carotenoides/química , Carotenoides/uso terapêutico , Suplementos Nutricionais/análise , Frutas/química , Frutas/metabolismo , Humanos , Momordica/metabolismo , Neoplasias/tratamento farmacológico , Polifenóis/química , Polifenóis/uso terapêutico , Vitaminas/química
15.
Urologiia ; (1): 90-96, 2019 Apr.
Artigo em Russo | MEDLINE | ID: mdl-31184024

RESUMO

INTRODUCTION: Male infertility accounts for 45-50% of all barren marriages, and in up to 40% of cases an idiopathic male infertility is diagnosed. The introduction of ART programs into clinical practice allowed to restore the childbearing function in various diseases, both in women and men, which were previously considered absolutely unpromising for treatment. AIM: to study an influence of the antioxidant complex (Androdoz) on the results of HBA-test in infertile men during a preparation for assisted reproductive technology (IVF/ICSI). MATERIALS AND METHODS: A total of 80 men aged from 25 to 45 years planning an ART program were included in a comparative, randomized, prospective, controlled study. Sixty men in a main group received an antioxidant complex (Androdoz) for 3 months, while 20 men were allocated to control group. The criterion of efficiency of the treatment was an improvement of HBA-test as well as pregnancy rate in the couples determined by interviewing patients participating in the study. RESULTS: After 3 months of therapy an increase in the number of morphologically normal spermatozoa in the ejaculate was shown in the main group, while in the control group negative changes were noted. There was a decrease in the proportion of spermatozoa with a progressive movement (+) in comparison with the control group. A positive influence of antioxidant complex (Androdoz) on the functional properties of sperm was proven by the increase in HBA-test by 13.8%, whereas there were no positive changes in the control group. A pregnancy rate after the first cycle of ART in the main group was 45% compared to 25% in the control group. CONCLUSION: The use of the antioxidant complex (Androdoz) for the treatment of male infertility in those patients who considers ART program is perspective method which allows to improve the main criteria of sperm analysis and functional tests (HBA-test), and also contributes to an increase in positive outcomes of ART program.


Assuntos
Antioxidantes , Infertilidade Masculina , Técnicas de Reprodução Assistida , Injeções de Esperma Intracitoplásmicas , Adulto , Antioxidantes/uso terapêutico , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Gravidez , Taxa de Gravidez , Estudos Prospectivos
16.
Adv Gerontol ; 32(1-2): 128-132, 2019.
Artigo em Russo | MEDLINE | ID: mdl-31228378

RESUMO

To study the effectiveness of the inclusion of Cytoflavin in the management of postoperative delirium treating in elderly patients. Analyzed the results of treatment of 89 elderly patients (65-74 years) who, according to similar emergency indications, underwent surgery and postoperatively showed signs of delirium (according to the DDS scale ≥8 points). Depending on the treatment regimen, the patients were divided into three groups: in the first (n=32) group, bromodihydrochlorophenylbenzodiazepine was administered intravenously (1-5 min) in a dose of 1 mg in the 1st group (n=32) to the group (patients of the 2nd group (n=28) with the same purpose and at the same time cytoflavin was injected: 10 ml of the drug in dilution per 200 ml of 10% glucose solution intravenously at a rate of 140 drops (7 ml) per minute. Patients of 3rd group (n=29) were injected with ethylmethylhydroxypyridine succinate intravenous (within 5-7 min) at a dose of 200 mg. The condition was assessed using the SOFA, DDS and RASS scales. The inclusion of drugs with antioxidant/membrane-protective action (Cytoflavin and ethylmethylhydroxypyridine succinate) in the treatment regimen of postoperative delirium in the elderly increases the effectiveness of treatment, which is manifested in more rapid relief of the condition. When comparing the efficacy of Cytoflavin and ethylmethylhydroxypyridine succinate, it was noted that in a number of indicators (restoration of spontaneous breathing, improvement after the first dose and complete relief of signs of delirium) both drugs showed comparable results, however, when assessing the depth of sedation (on the RASS scale), Cytoflavin was more effective (p=0,001).The obtained results of the effectiveness of cytoflavin in combination with good patient tolerance allows us to recommend the inclusion of the drug in the treatment regimens of this pathology.


Assuntos
Antioxidantes , Delírio , Complicações Pós-Operatórias , Idoso , Antioxidantes/uso terapêutico , Delírio/tratamento farmacológico , Combinação de Medicamentos , Mononucleotídeo de Flavina/uso terapêutico , Humanos , Inosina Difosfato/uso terapêutico , Niacinamida/uso terapêutico , Piridinas/uso terapêutico , Succinatos/uso terapêutico
17.
Adv Gerontol ; 32(1-2): 180-184, 2019.
Artigo em Russo | MEDLINE | ID: mdl-31228386

RESUMO

In the review are presented the relationship between a rich chemical composition with the breadth of the therapeutic activity of the Alchemilla vulgaris herb. The drugs, based on the Alchemilla vulgaris raw material are widely used medical application is prevention and maintenance in geriatrics, as a lymphotropic, anti-inflammatory, hypoglycemic, hypotensive, nootropic, hemorheological, wound-healing, antioxidant, antispasmodic and a mild diuretic remedy for prevention and maintenance therapy in case of the imbalance of the cardiovascular, digestive, nervous, endocrine, immune, excretory and bone systems.


Assuntos
Alchemilla , Antioxidantes , Geriatria , Extratos Vegetais , Idoso , Alchemilla/química , Antioxidantes/uso terapêutico , Humanos , Extratos Vegetais/uso terapêutico
18.
Medicine (Baltimore) ; 98(25): e16049, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-31232940

RESUMO

OBJECTIVE: This study was performed to explore the effects of probucol on contrast-induced acute kidney injury (CIAKI) in patients with coronary heart disease undergoing percutaneous coronary intervention (PCI). METHODS: In total, 220 patients undergoing PCI were randomly assigned to either the control group (hydration from 12 hours before to 12 hours after contrast administration; n = 110) or the probucol group (hydration plus probucol 500 mg twice daily 1 day before and 3 days after the operation; n = 110). The primary endpoint was the occurrence of serum creatinine (Scr)-based CIAKI, defined as an absolute increase in Scr by 0.5 mg/dl (44.2 µmol/L) or a relative 25% increase from baseline within 48 to 72 hours after exposure to contrast medium. The secondary outcomes were composite variations in Scr, blood urea nitrogen (BUN), creatinine clearance rate (Ccr) within 48 to 72 hours, and major adverse events during hospitalization or the 7-day follow-up period after PCI. RESULTS: The overall incidence of Scr-based CIAKI was 7.3% (16/220): 5.5% (6/110) in the control group and 9.1% (10/110) in the probucol group (χ = 1.078, P = .298). There were no significant differences in the occurrence rate of major adverse events during hospitalization or the 7-day follow-up period after PCI between the groups. Multivariate logistic regression analysis showed that probucol was not an independent protective factor for CIAKI (odds ratio, 1.825; 95% confidence interval, 0.639-5.212; P = .261). However, hydration was an independent protective factor (odds ratio, 0.997; 95% confidence interval, 0.995-0.999; P = .004). CONCLUSION: Probucol cannot effectively reduce the incidence of CIAKI through its anti-inflammatory and antioxidative stress effects.


Assuntos
Lesão Renal Aguda/tratamento farmacológico , Meios de Contraste/efeitos adversos , Intervenção Coronária Percutânea/efeitos adversos , Probucol/farmacologia , Lesão Renal Aguda/etiologia , Idoso , Antioxidantes/farmacologia , Antioxidantes/uso terapêutico , China , Meios de Contraste/uso terapêutico , Angiografia Coronária/efeitos adversos , Doença das Coronárias/diagnóstico por imagem , Doença das Coronárias/cirurgia , Método Duplo-Cego , Feminino , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Intervenção Coronária Percutânea/métodos , Probucol/uso terapêutico , Estudos Prospectivos
19.
Chem Biol Interact ; 310: 108728, 2019 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-31254498

RESUMO

Disruption of the mitochondrial function has been associated with redox impairment and triggering of cell death in nucleated human cells, as observed in several diseases. The administration of chemicals that would prevent mitochondrial dysfunction is an attractive strategy in cases of neurodegeneration, cardiovascular diseases, and metabolic disorders. Methylglyoxal (MG) is a dicarbonyl compound that exhibits an important role as a mitochondrial toxicant in neurodegenerative diseases (such as Alzheimer's disease and Parkinson's disease) and diabetes mellitus. On the other hand, naringenin (NGN; C15H12O5) is a natural antioxidant that also presents anti-inflammatory effects in mammalian cells. In this context, we have evaluated whether and how NGN would be able to prevent the mitochondria-related bioenergetics and redox dysfunctions induced by MG in the human neuroblastoma SH-SY5Y cells. The cells were pretreated (for 2 h) with NGN (at 10-80 µM) and then challenged with MG at 500 µM for 24 h. NGN significantly attenuated the effects of MG on the mitochondrial function and redox environment in this experimental model. Moreover, NGN prevented the MG-triggered mitochondria-related cell death in SH-SY5Y cells. Nonetheless, the inhibition of the synthesis of glutathione (GSH, a major non-enzymatic antioxidant) suppressed the promotion of mitochondrial protection by NGN in MG-treated cells. We also found that the synthesis of GSH was induced by NGN through a mechanism associated with the transcription factor nuclear factor (erythroid-derived 2)-like 2 (Nrf2). Therefore, NGN caused mitochondrial protection by an Nrf2/GSH-dependent manner in SH-SY5Y cells exposed to MG.


Assuntos
Flavanonas/farmacologia , Glutationa/metabolismo , Mitocôndrias/efeitos dos fármacos , Fator 2 Relacionado a NF-E2/metabolismo , Neuroblastoma/patologia , Fármacos Neuroprotetores/farmacologia , Antioxidantes/farmacologia , Antioxidantes/uso terapêutico , Morte Celular/efeitos dos fármacos , Linhagem Celular Tumoral , Flavanonas/uso terapêutico , Humanos , Oxirredução/efeitos dos fármacos , Aldeído Pirúvico/efeitos adversos
20.
Carbohydr Polym ; 220: 60-70, 2019 Sep 15.
Artigo em Inglês | MEDLINE | ID: mdl-31196551

RESUMO

Chitosan oligosaccharides (COS) are the degraded products of chitin or chitosan prepared by chemical or enzymatic hydrolysis. As compared to chitosan, COS not only exhibit some specific physicochemical properties such as excellent water solubility, biodegradability and biocompatibility, but also have a variety of functionally biological activities including anti-inflammation, anti-bacteria, immunomodulation, neuroprotection and so on. This review aims to summarize the preparation and structural characterization methods of COS, and will discuss the application of COS or their derivatives to human health, animal husbandry and agricultural production. COS have been demonstrated to prevent the occurrence of human health-related diseases, enhance the resistance to diseases of livestock and poultry, and improve the growth and quality of crops in plant cultivation. Overall, COS have presented a broad developmental potential and application prospect in the healthy field that deserves further exploration.


Assuntos
Quitosana , Criação de Animais Domésticos , Animais , Anti-Infecciosos/uso terapêutico , Anti-Inflamatórios/uso terapêutico , Fármacos Antiobesidade/uso terapêutico , Antineoplásicos/uso terapêutico , Antioxidantes/uso terapêutico , Quitosana/química , Quitosana/isolamento & purificação , Quitosana/farmacologia , Produtos Agrícolas/crescimento & desenvolvimento , Produtos Agrícolas/metabolismo , Humanos , Gado/crescimento & desenvolvimento , Gado/metabolismo , Fármacos Neuroprotetores/uso terapêutico , Doenças das Plantas/prevenção & controle
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