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Leandro dos Santos,Leticia de Oliveira Maciel,Erika Kristina Incerpi Gracia,Evelise Aline Soares,Danielle Aparecida Quintino Si,Valerio Garrone Barauna,Heder Frank Gianotto Estrela,Carollayne Mendonca 한국식품영양과학회 2021 Preventive Nutrition and Food Science Vol.26 No.1
Cardiovascular diseases are the leading cause of mortality and morbidity worldwide. In this study we compared the effects of oral treatment with red pepper ethereal extracts or simvastatin on dyslipidemia, left ventricle remodeling, and atherosclerotic lesions of low-density lipoprotein (LDL) receptor knockout mice (LDLr<SUP>−/−</SUP>) fed a hyperlipidic diet. Forty 3-month-old male mice were distributed into four groups: control (C; animals fed a standard diet), HL (animals fed a hyperlipidic diet), and HL+P or HL+S (animals fed a hyperlipidic diet plus red pepper ethereal extracts or simvastatin, respectively). After 60 days, treatment with both red pepper ethereal extracts and simvastatin prevented dyslipidemia, atherosclerotic lesion progression, and left ventricle hypertrophy. Our results suggest a cardioprotective effect of red pepper ethereal extracts in LDLr<SUP>−/−</SUP> mice, which is comparable to the well-known effects of simvastatin.
Leandro Freire dos Santos,Ana Lucia Zanatta,Vanete Thomaz Soccol,Maria Fernanda Torres,Sandro José Ribeiro Bonatto,Rosália Rubel,Carlos Ricardo Soccol 한국생물공학회 2013 Biotechnology and Bioprocess Engineering Vol.18 No.1
The ability of Pleurotus ostreatus biomass,cultived by submerged fermentation, to produce beneficial effect on lipid profile and macrophages activity during a high-fat diet (HFD) for a long-term intake was investigated. Blood samples were collected through cardiac puncture to measure the plasma cholesterol, triglycerides, low-density protein (LDL), high-density protein (HDL), aspartate aminotransferase (AST) activity, urea– blood urea nitrogen (BUN)/creatinine ratio of rats fed on an HFD for 4 months. Dosage of lipid hydroperoxides was carried out on methanolic extract of liver tissue. Peritoneal macrophages activity was evaluated in relation to the superoxide anion,hydrogen peroxide and nitric oxide production, phagocytosis and lysosomal volume. The administration of P. ostreatus significantly altered the lipid profile and oxidative stress as related to the LDL and triglycerides decrease and inhibitory effects on superoxide anion and hydrogen peroxide production. All findings of this study lead us to suggest that the P. ostreatus maybe a beneficial agent in the hyperlipidemia and atherosclerosis treatments.
Rodrigo de Almeida Vaucher,Janice Luehring Giongo,Leandro Perger Bolzan,Marcos Saldanha Côrrea,Viviane Pedroso Fausto,Camilla Filippi dos Santos Alves,Leonardo Quintana Soares Lopes,Aline Augusti Boli 한국응용곤충학회 2015 Journal of Asia-Pacific Entomology Vol.18 No.2
Antimicrobial activity of Amazonian oils Andiroba and Copaiba against Paenibacillus larvae has been recently determined, indicating their potential use for the control of American Foulbrood Disease (AFB), but the use of essential oils in the environment still represents a challenge. The oils present several volatile elements in its composition, such high volatility being the cause of a sharp decline in antimicrobial activity. In this context the nanostructuration of these amazon oils may decrease the volatile characteristic of such products. The following research aimed to evaluate the activity of nanoemulsions prepared with Andiroba and Copaiba oils against Paenibacillus species. The toxicity of nanoemulsions has also been investigated with larvae and adult worker bees. Nanoemulsions (NE1, 10% Andiroba oil; NE2, 10% Copaiba oil; and NE3, 10% medium-chain triglyceride as negative control) were prepared in a high pressure homogenizer. The particle sizes were determined as 192, 211, and 178 nm for NE1, NE2, and NE3, respectively. The z potential values were −56.4, −47.1, and −27.2, respectively. NE1 and NE2 showed minimal inhibitory concentration (MIC) values lower than 0.39% for most Paenibacillus species tested. None of the strains were inhibited by negative control NE3. The timeresponse effect of the nanoemulsions has been tested on P. larvae ATCC9545, resulting in a decrease in the number of viable cells to less than 1 log CFU/ml for NE1. The nanoemulsion NE1 showed a significant toxic effect for the larvae (26% mortality) when compared with NE2 (13%) and NE3 (7%). The toxic effect of nanoemulsions has also been evaluated for 72 h in adult worker bees and low mortality rate was only observed for the NE1 treatment (8.3%). This study shows for the first time that nanoemulsions of Copaiba oil can be a potential candidate for the treatment or prevention of AFB.
Cesar Cavinato Cal Abad,Ademir Manuel do Nascimento,Leandro Eziquiel dos Santos,Diego Figueroa,Pamella Ramona,Michele Sartori,Katia B. Scapini,Oscar Albuquerque,Ivana Cinthya Moraes-Silva,Hélio José C 한국운동재활학회 2017 JER Vol.13 No.3
The present study aimed to compare the effects of moderate-intensity continuous and high-intensity interval exercise training (ET) on exercise tolerance, cardiac morphometry and function, hemodynamic, and car-diac autonomic modulation in myocardial infarcted mice. Wild-type mice (WT) were divided into four groups: sedentary WT (S); WT myo-cardium infarction sedentary (IS); WT myocardium infarction under-went to moderate-intensity continuous ET (MICT), and WT myocardium infarction underwent to high-intensity interval ET (MIIT). After 60 days of descending coronary artery ligation, moderate-intensity continuous ET consisted of running at 60% of maximum, while the high-intensity in-terval training consisted of eight sprints of 4 min at 80% of maximum and a 4-min recovery at 40% of maximum. Both exercises were per-formed 1 hr a day, 5 days a week, during 8 weeks. Results demonstrated that IS showed elevated exercise tolerance, as well as decreased he-modynamic and heart function, and autonomic control. On the other hand, both programs of ET were equally effective to increase all param-eters, without further differences between the groups. In conclusion, the results of the present study showed that myocardial infarction leads to damage in both investigated strains and the two types of physical ex-ercise attenuated the major impairments provoked by myocardial in-farction in exercise tolerance, cardiac structure, cardiac function, he-modynamic and cardiac autonomic modulation.
Isoquinoline alkaloids supplementation on performance and carcass traits of feedlot bulls
Michels, Alex,Neumann, Mikael,Leao, Guilherme Fernando Mattos,Reck, Angela Maria,Bertagnon, Heloisa Godoi,Lopes, Leandro Samia,de Souza, Andre Martins,dos Santos, Leslei Caroline,Stadler, Edelmir Silv Asian Australasian Association of Animal Productio 2018 Animal Bioscience Vol.31 No.9
Objective: Isoquinoline Alkaloids, derived from one plant (Macleaya cordata) can be an alternative when it is desired to increase performance in feedlot cattle. However, results on these nutritional additives in high energy diets in ruminants are still incipient in literature. In this context, the objective of this study was to evaluate performance and carcass traits of feedlot bulls supplemented with sanguinarine, the main alkaloid presents in Macleaya cordata in high energy density diets. Methods: Thirty-two crossbred Angus-Nelore bulls with mean initial body weight of $365{\pm}10kg$ and mean initial age of $11{\pm}3$ months were used. The experiment lasted 119 days, with 14 days of adaptation and 105 experimental days. Experimental diet consisted of 85% whole corn grains and 15% protein-vitamin-mineral nucleus and supplied ad libitum. Treatments consisted of a control diet (CON) and a diet with sanguinarine supplementation (SAN) at a dosage of 4 g of product sufficient to provide 6 mg of sanguinarine/d. Experimental design was completely randomized. Results: Dry matter intake, average daily gain and feed conversion were similar (p>0.05) between treatments. However, SAN group animals had higher carcass yield (p = 0.045) and were more efficient in the transformation of dry matter consumed in carcass gain (p = 0.046) than CON. In addition, haptoglobin, increased throughout feedlot duration meaning high challenge for the animals due to the diet, but this behavior was similar (p>0.05) between treatments. Conclusion: Sanguinarine produced positive results in relation to carcass yield and could be used as an additive for bulls fed diets receiving high energy density diet.