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1.
Gen Physiol Biophys ; 43(1): 25-36, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38312032

RESUMO

Hepatic steatosis and dyslipidaemia are associated with excessive fructose consumption. We investigated the effect of quercetin intake during the early pre-weaning period on metabolic dysfunction caused by a high fructose diet. Sprague Dawley rats, 21-day-old, were weaned onto standard rat chow and randomly allocated to four groups which either water or 20% fructose solution to drink with or without quercetin (100 mg/kg body mass). Quercetin was administered for two weeks. Thereafter, rats continued on their respective diets for six weeks without quercetin. Terminally, serum triglyceride concentrations were not significantly different (p > 0.05) between males across groups. However, females receiving quercetin alone had lower serum triglyceride levels than those receiving fructose (p < 0.01). Quercetin increased the incidence of hepatic steatosis in female rats. Quercetin intake in the immediate post-weaning period may prevent hypertriglyceridemia. However, female rats receiving quercetin alone are predisposed to hepatic steatosis associated with a high fructose diet.


Assuntos
Dislipidemias , Hepatopatia Gordurosa não Alcoólica , Masculino , Ratos , Feminino , Animais , Hepatopatia Gordurosa não Alcoólica/etiologia , Hepatopatia Gordurosa não Alcoólica/metabolismo , Ratos Sprague-Dawley , Quercetina/farmacologia , Frutose/metabolismo , Dieta , Triglicerídeos , Dislipidemias/metabolismo , Fígado
2.
Can J Physiol Pharmacol ; 101(11): 565-573, 2023 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-37433224

RESUMO

Telomere length, a marker of ageing, is susceptible to developmental programming that may cause its accelerated attrition. Metabolic syndrome triggers telomere attrition. Fenofibrate, a peroxisome proliferator-activated receptor-alpha agonist, is protective against telomere attrition. We investigated the impact of fenofibrate administered during suckling on the lipid profile and leucocyte telomere lengths of rats fed a high-fructose diet post-weaning. Suckling Sprague-Dawley pups (n = 119) were allocated to four groups and gavaged with either 10 mL·kg-1 body mass 0.5% dimethyl sulfoxide, 100 mg·kg-1 body mass fenofibrate, fructose (20%, w / v), or a combination of fenofibrate and fructose for 15 days. Upon weaning, each of the initial groups was split into two subgroups: one had plain water while the other had fructose solution (20%, w / v) to drink for 6 weeks. Blood was collected for DNA extraction and relative leucocyte telomere length determination by real-time PCR. Plasma triglycerides and cholesterol were also quantified. The treatments had no effect (p > 0.05) on body mass, cholesterol concentration, and relative leucocyte telomere lengths in both sexes. Post-weaning fructose increased triglyceride concentrations (p < 0.05) in female rats. Fenofibrate administered during suckling did not affect ageing nor did it prevent high fructose-induced hypertriglyceridaemia in female rats.


Assuntos
Fenofibrato , Masculino , Ratos , Animais , Feminino , Fenofibrato/farmacologia , Frutose/efeitos adversos , Ratos Sprague-Dawley , Dieta , Colesterol , Triglicerídeos
3.
Int J Mol Sci ; 24(8)2023 Apr 20.
Artigo em Inglês | MEDLINE | ID: mdl-37108772

RESUMO

This research aimed to substantiate the potential practicality of utilizing a matrix-like platform, a novel 3D-printed biomaterial scaffold, to enhance and guide host cells' growth for bone tissue regeneration. The 3D biomaterial scaffold was successfully printed using a 3D Bioplotter® (EnvisionTEC, GmBH) and characterized. Osteoblast-like MG63 cells were utilized to culture the novel printed scaffold over a period of 1, 3, and 7 days. Cell adhesion and surface morphology were examined using scanning electron microscopy (SEM) and optical microscopy, while cell viability was determined using MTS assay and cell proliferation was evaluated using a Leica microsystem (Leica MZ10 F). The 3D-printed biomaterial scaffold exhibited essential biomineral trace elements that are significant for biological bone (e.g., Ca-P) and were confirmed through energy-dispersive X-ray (EDX) analysis. The microscopy analyses revealed that the osteoblast-like MG63 cells were attached to the printed scaffold surface. The viability of cultured cells on the control and printed scaffold increased over time (p < 0.05); however, on respective days (1, 3, and 7 days), the viability of cultured cells between the two groups was not significantly different (p > 0.05). The protein (human BMP-7, also known as growth factor) was successfully attached to the surface of the 3D-printed biomaterial scaffold as an initiator of osteogenesis in the site of the induced bone defect. An in vivo study was conducted to substantiate if the novel printed scaffold properties were engineered adequately to mimic the bone regeneration cascade using an induced rabbit critical-sized nasal bone defect. The novel printed scaffold provided a potential pro-regenerative platform, rich in mechanical, topographical, and biological cues to guide and activate host cells toward functional regeneration. The histological studies revealed that there was progress in new bone formation, especially at week 8 of the study, in all induced bone defects. In conclusion, the protein (human BMP-7)-embedded scaffolds showed higher regenerative bone formation potential (week 8 complete) compared to the scaffolds without protein (e.g., growth factor; BMP-7) and the control (empty defect). At 8 weeks postimplantation, protein (BMP-7) significantly promoted osteogenesis as compared to other groups. The scaffold underwent gradual degradation and replacement by new bones at 8 weeks in most defects.


Assuntos
Materiais Biocompatíveis , Engenharia Tecidual , Animais , Humanos , Coelhos , Materiais Biocompatíveis/farmacologia , Alicerces Teciduais , Proteína Morfogenética Óssea 7 , Osteogênese , Regeneração Óssea , Impressão Tridimensional
4.
Gen Physiol Biophys ; 41(2): 141-150, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-35416177

RESUMO

Excessive consumption of fructose-rich diets in early life stages increases the risk for developing nephropathy in adulthood. We investigated the potential preventive effects of neonatally administered zingerone on the development of dietary fructose-induced nephropathy. Four-day-old suckling male and female rat pups were orally gavaged (10 ml/kg) with: distilled water (Con group), 20% fructose solution (Fru group), 20% fructose solution + 40 mg/kg zingerone in distilled water (ZFru group), or 40 mg/kg of zingerone (Zgr group) for 14 days. Thereafter, Con and Zgr groups continued on plain drinking water while Fru and ZFru groups drank 20% fructose solution ad libitum for 10 weeks. The Fru group had significantly increased plasma concentration of the renal injury marker kidney injury molecule one (KIM-1) and decreased glomerular urinary space area compared to the controls in both sexes (p < 0.05). These alterations were prevented by neonatally administered zingerone. Zingerone administration neonatally is a potential prophylaxis for longterm high-fructose diet-induced nephropathy.


Assuntos
Frutose , Nefropatias , Animais , Dieta , Feminino , Frutose/efeitos adversos , Guaiacol/análogos & derivados , Nefropatias/induzido quimicamente , Nefropatias/prevenção & controle , Masculino , Ratos , Ratos Sprague-Dawley , Água
5.
Can J Physiol Pharmacol ; 98(1): 44-50, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31560861

RESUMO

Fructose contributes to the development of nonalcoholic fatty liver disease (NAFLD). ß-Sitosterol (Bst), a naturally occurring phytosterol, has antihyperlipidaemic and hepatoprotective properties. This study interrogated the potential protective effect of ß-sitosterol against NAFLD in growing rats fed a high-fructose diet, modelling children fed obesogenic diets. Forty-four 21 day old male rat pups were randomly allocated to and administered the following treatments for 12 weeks: group I, standard rat chow (SRC) + plain drinking water (PW) + plain gelatine cube (PC); group II, SRC + 20% w/v fructose solution (FS) as drinking fluid + PC; group III, SRC + FS + 100 mg/kg fenofibrate in a gelatine cube; group IV, SRC + FS + 20 mg/kg ß-sitosterol gelatine cube (Bst); group V, SRC + PW + Bst. Terminally, the livers were dissected out, weighed, total liver lipid content determined, and histological analyses done. Harvested plasma was used to determine the surrogate biomarkers of liver function. The high-fructose diet caused increased (p < 0.05) hepatic lipid (total) accretion (>10% liver mass), micro- and macrovesicular hepatic steatosis, and hepatic inflammation. ß-Sitosterol and fenofibrate prevented the high-fructose diet-induced macrovesicular steatosis and prevented the progression of NAFLD to steatohepatitis. ß-Sitosterol can prospectively be used to mitigate diet-induced NAFLD.


Assuntos
Frutose/efeitos adversos , Hipolipemiantes/farmacologia , Hepatopatia Gordurosa não Alcoólica/tratamento farmacológico , Sitosteroides/farmacologia , Animais , Dieta/efeitos adversos , Lipídeos , Fígado/efeitos dos fármacos , Fígado/metabolismo , Masculino , Ratos , Ratos Sprague-Dawley
6.
Molecules ; 25(11)2020 Jun 09.
Artigo em Inglês | MEDLINE | ID: mdl-32526850

RESUMO

Metabolic syndrome (MetS) is a prevalent, multifactorial and complex disease that is associated with an increased risk of developing diabetes and other major cardiovascular complications. The rise in the global prevalence of MetS has been attributed to genetic, epigenetic, and environmental factors. The adoption of sedentary lifestyles that are characterized by low physical activity and the consumption of high-energy diets contributes to MetS development. Current management criteria for MetS risk factors involve changes in lifestyle and the use of pharmacological agents that target specific biochemical pathways involved in the metabolism of nutrients. Pharmaceutical drugs are usually expensive and are associated with several undesirable side effects. Alternative management strategies of MetS risk factors involve the use of medicinal plants that are considered to have multiple therapeutic targets and are easily accessible. Medicinal plants contain several different biologically active compounds that provide health benefits. The impact of phytochemicals present in local medicinal plants on sustainable health and well-being of individuals has been studied for many years and found to involve a plethora of complex biochemical, metabolic, and physiological mechanisms. While some of these phytochemicals are the basis of mainstream prescribed drugs (e.g., metformin, reserpine, quinine, and salicin), there is a need to identify more medicinal plants that can be used for the management of components of MetS and to describe their possible mechanisms of action. In this review, we assess the potential health benefits of South African ethnomedicinal plants in protecting against the development of health outcomes associated with MetS. We aim to provide the state of the current knowledge on the use of medicinal plants and their therapeutically important phytochemicals by discussing the current trends, with critical examples from recent primary references of how medicinal plants are being used in South African rural and urban communities.


Assuntos
Doenças Metabólicas/tratamento farmacológico , Compostos Fitoquímicos/uso terapêutico , Fitoterapia , Plantas Medicinais/química , Animais , Humanos
7.
Gen Physiol Biophys ; 38(5): 435-444, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31411571

RESUMO

We investigated the effect of oral curcumin, on bone health of rats fed a high-fructose diet. Suckling pups (males = 65, females = 63) were gavage with 0.5% DMSO, curcumin (500 mg/kg), fructose (20%, w/v) or a combination of curcumin and fructose daily from postnatal days 6 to 21. Then the rats were weaned onto normal rat feed for six weeks and each group was sub-divided into two subgroups: one had plain tap water and the other had fructose (20%, w/v) to drink. Blood was assayed for plasma total osteocalcin. Morphometry and radiographic bone density assessments were made on the femora and tibiae. The lengths, masses and Seedor indices of the bones were similar (p > 0.05, ANOVA) across the groups. Males that received curcumin with or without fructose during suckling and weaned onto a high-fructose diet had lower (p ≤ 0.05, ANOVA) osteocalcin concentration versus the other males. Similarly, in females rats, curcumin alone or administered with fructose resulted in lower (p ≤ 0.05, ANOVA) osteocalcin concentration versus female rats administered the vehicle control. Neonatal curcumin-induced decrease in plasma total osteocalcin concentration may predispose to adverse consequences on glucose metabolism and bone health.


Assuntos
Densidade Óssea/efeitos dos fármacos , Curcumina/administração & dosagem , Curcumina/farmacologia , Dieta , Carboidratos da Dieta/administração & dosagem , Frutose/administração & dosagem , Osteocalcina/sangue , Administração Oral , Animais , Animais Lactentes , Carboidratos da Dieta/metabolismo , Carboidratos da Dieta/farmacologia , Feminino , Frutose/metabolismo , Frutose/farmacologia , Glucose/metabolismo , Masculino , Ratos , Desmame
8.
Molecules ; 24(4)2019 Feb 13.
Artigo em Inglês | MEDLINE | ID: mdl-30781794

RESUMO

Nutritional manipulations in the neonatal period are associated with the development of negative or positive health outcomes later in life. Excessive fructose consumption has been attributed to the increase in the global prevalence of metabolic syndrome (MetS) and the development of oxidative stress. Oleanolic acid (OA) has anti-diabetic and anti-obesity effects. We investigated the protective potential of orally administering OA in the neonatal period, to prevent fructose-induced oxidative stress, adverse health outcomes and maturation of the gastrointestinal tract (GIT) in suckling rats. Seven-day old Sprague-Dawley rats (N = 30) were gavaged daily with 10 mL/kg of: distilled water (DW), oleanolic acid (OA; 60 mg/kg), high fructose solution (HF; 20% w/v), or OAHF for 7 days. On day 14, tissue samples were collected to determine clinical health profiles, hepatic lipid content, and activity of anti-oxidant enzymes. Furthermore, biomarkers of oxidative stress and anti-oxidant capacity in the skeletal muscles were assessed. The gastrointestinal tract (GIT) morphometry was measured. Rats in all groups grew over the 7-day treatment period. There were no significant differences in the terminal body masses, GIT morphometry, surrogate markers of general health, liver lipid content across all treatment groups (p < 0.05). Neonatal fructose administration decreased the activity of catalase, depleted GSH and increased lipid peroxidation. However, the level of GSH and catalase activity were improved by neonatal OA treatment. Short-term oral OA administration during the critical developmental period protects against fructose-induced oxidative stress without adverse effects on health outcomes associated with MetS or precocious development of the GIT in suckling male and female rats.


Assuntos
Músculo Esquelético/efeitos dos fármacos , Obesidade/dietoterapia , Ácido Oleanólico/administração & dosagem , Estresse Oxidativo/efeitos dos fármacos , Administração Oral , Animais , Animais Recém-Nascidos , Animais Lactentes , Frutose/efeitos adversos , Frutose/toxicidade , Humanos , Músculo Esquelético/patologia , Obesidade/patologia , Ratos
9.
J Sci Food Agric ; 99(15): 6954-6961, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31414497

RESUMO

BACKGROUND: Fructose and cholesterol-rich diets have been implicated in the upsurge of metabolic syndrome (MetS). Phytochemicals are being explored as alternatives for the prevention and management of MetS. Thirty-six 21-day-old, female Sprague Dawley rats fed a high-fructose, high-cholesterol diet post-weaning were used to investigate the prophylactic potential of quercetin. Group 1 was given standard rat chow (SRC); Group 2: SRC and quercetin (75 mg kg-1 daily); Group 3: SRC and fenofibrate (100 mg kg-1 daily); Group 4 was given a high cholesterol diet (HCD) (2% added dietary cholesterol in SRC), 20% fructose drinking solution (FS); Group 5 was given HCD, 20% FS and quercetin (75 mg kg-1 daily); Group 6: HCD, 20% FS and fenofibrate (100 mg kg-1 daily). Rats were fed ad libitum for 8 weeks, euthanized, and blood and liver samples were collected. RESULTS: The HCD and FS significantly increased (P < 0.05) absolute and relative liver masses and serum cholesterol. Fasting blood glucose, serum triglycerides, alanine transaminase, creatinine, and urea were not significantly different (P > 0.05) between groups. The HCD and FS significantly increased liver lipid yield compared to the SRC and rats receiving SRC with fenofibrate (P < 0.05). Quercetin or fenofibrate together with HCD and FS attenuated the diet-induced increase in liver lipids by approximately 50%, although this was not statistically significant. Liver macro- and micro-steatosis scores were significantly increased (P < 0.05) in rats receiving HCD and FS. Quercetin or fenofibrate administration together with HCD and FS significantly decreased (P < 0.05) liver macro-steatosis scores. CONCLUSION: The prophylactic effect of quercetin on fructose and cholesterol diet-induced liver lipid accumulation may be exploited in the fight against non-alcoholic fatty liver disease (NAFLD). © 2019 Society of Chemical Industry.


Assuntos
Colesterol na Dieta/efeitos adversos , Frutose/efeitos adversos , Hepatopatia Gordurosa não Alcoólica/tratamento farmacológico , Quercetina/administração & dosagem , Animais , Colesterol/sangue , Colesterol na Dieta/metabolismo , Feminino , Frutose/metabolismo , Humanos , Fígado/efeitos dos fármacos , Fígado/metabolismo , Masculino , Hepatopatia Gordurosa não Alcoólica/etiologia , Hepatopatia Gordurosa não Alcoólica/metabolismo , Ratos , Ratos Sprague-Dawley , Triglicerídeos/sangue , Desmame
10.
Molecules ; 23(10)2018 Oct 03.
Artigo em Inglês | MEDLINE | ID: mdl-30282899

RESUMO

Metabolic syndrome, a cluster of different disorders which include diabetes, obesity and cardiovascular diseases, is a global epidemic that is growing at an alarming rate. The origins of disease can be traced back to early developmental stages of life. This has increased mortalities and continues to reduce life expectancies of individuals across the globe. The aim of this study was to investigate the sub-acute and long term effects of neonatal oral administration of oleanolic acid and metformin on lipids (free fatty acids, FFAs) and genes associated with lipid metabolism and glucose transport using a neonatal rat experimental model. In the first study, seven days old pups were randomly grouped into control-distilled water (DW); oleanolic acid (60 mg/kg), metformin (500 mg/kg), high fructose diet (20% w/v, HF), oleanolic acid (OA) + high fructose diet (OA + HF), and Metformin + high fructose diet (MET + HF) groups. The pups were treated for 7 days, and then terminated on postnatal day (PD) 14. In the second study, rat pups were initially treated similarly to study 1 and weaned onto normal rat chow and plain drinking water on PD 21 till they reached adulthood (PD112). Tissue and blood samples were collected for further analyses. Measurement of the levels of free fatty acids (FFAs) was done using gas chromatography-mass spectrometry. Quantitative polymerase chain reaction (qPCR) was used to analyze the gene expression of glut-4, glut-5, fas, acc-1, nrf-1 and cpt-1 in the skeletal muscle. The results showed that HF accelerated accumulation of saturated FFAs within skeletal muscles. The HF fed neonatal rats had increased stearic acid, which was associated with decreased glucose, suppressed expression of glut-4, glut-5, nrf-1 and cpt-1 genes, and increased expression of acc-1 (p < 0.01) and fas. OA + HF and MET + HF treated groups had increased mono- and polyunsaturated FFAs; oleic, and octadecadienoic acids than the HF group. These unsaturated FFAs were associated with increased glut-4, glut-5 and nrf-1 (p < 0.01) and decreased acc-1 and fas (p < 0.05) in both OA + HF and MET + HF treated groups. CONCLUSIONS: The present study shows that neonatal oral administration of oleanolic acid and metformin potentially protects against the development of fructose-induced metabolic dysfunction in the rats in both short and long time periods.


Assuntos
Metabolismo dos Lipídeos/efeitos dos fármacos , Síndrome Metabólica/tratamento farmacológico , Metformina/administração & dosagem , Ácido Oleanólico/administração & dosagem , Animais , Animais Recém-Nascidos , Transporte Biológico/efeitos dos fármacos , Glicemia/metabolismo , Gorduras na Dieta/administração & dosagem , Proteínas Facilitadoras de Transporte de Glucose/efeitos dos fármacos , Proteínas Facilitadoras de Transporte de Glucose/metabolismo , Humanos , Masculino , Síndrome Metabólica/metabolismo , Ratos , Ratos Sprague-Dawley
11.
J Sci Food Agric ; 98(4): 1381-1387, 2018 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-28758208

RESUMO

BACKGROUND: As a result of shortages and the cost of the currently utilized conventional dietary protein sources in the Sub-Saharan Africa feed industry, the chemical evaluation of available non-conventional sources for feed is imperative. One such source is Marula nut meal (a by-product of Marula oil extraction). The present study chemically characterized the nutritional composition of two differently processed Marula nut meals (MNMs) and compared them with that of solvent extracted soyabean meal (SBM). RESULTS: The MNMs had higher dry matter, ether extract and gross energy but lower crude protein and ash contents compared to SBM. The cold press produced Marula nut meal (MNM2) had higher arginine than the hydraulic filter press produced Marula nut meal (MNM1) and SBM. The meals had similar neutral and acid detergent fibre contents. The MNMs had higher phosphorus, magnesium and copper concentrations than SBM. Although the total saturated fatty acid proportion was similar across the meals, total monounsaturated and polyunsaturated fatty acid proportions were higher in MNMs and SBM, respectively. Oleic acid was higher in MNMs than in SBM. CONCLUSION: The low crude protein content in MNMs compared to SBM is comparable with other conventional dietary protein sources. Thus, the MNMs could be used as protein and energy feed ingredients. © 2017 Society of Chemical Industry.


Assuntos
Anacardiaceae/química , Fibras na Dieta/análise , Proteínas Alimentares/análise , Ácidos Graxos/análise , Glycine max/química , Minerais/análise , Aminoácidos/análise , Ração Animal/análise , Animais , Ingestão de Energia , Valor Nutritivo , Nozes/química
12.
J Cardiovasc Pharmacol ; 70(3): 202-209, 2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-28590262

RESUMO

Chronic ß-adrenergic stimulation induces left ventricular (LV) remodeling in male but not in female spontaneously hypertensive rats (SHRs). However, the role of sex steroids in mediating these effects has not been determined. The aim of the present study was to assess the impact of gonadectomy on isoproterenol (ISO)-induced LV remodeling in SHR. Gonadectomy was performed on 9-month-old male and female SHR. LV remodeling was induced by daily ISO injection (0.04 mg/kg) for 6 months. LV dimensions and functions were determined in vivo by echocardiography and ex vivo using isolated perfused heart preparations. In males, ISO increased LV end diastolic (LVED) diameter in sham-operated (in millimeter, ISO: 8.12 ± 0.26 vs. Con: 6.67 ± 0.20, P = 0.0002) but not in castrated SHR (ISO: 6.97 ± 0.31 vs. Con: 6.53 ± 0.15, P = 0.66). Similarly, ISO increased the volume intercept of the LVED pressure-volume relationship in sham-operated (in milliliters, ISO: 0.26 ± 0.02 vs. Con: 0.19 ± 0.01, P = 0.01) but not in castrated SHR (ISO: 0.17 ± 0.02 vs. Con: 0.17 ± 0.01, P = 0.99). In females, ISO only increased LVED diameter (ISO: 6.43 ± 0.13 vs. Con: 6.07 ± 0.09, P = 0.027). However, ovariectomy did not modify any LV dimensions measured in vivo and ex vivo. In conclusion, testosterone may be responsible for the chronic ß-adrenergic-induced LV dilation and eccentric remodeling observed in male but not female SHR.


Assuntos
Agonistas Adrenérgicos beta/toxicidade , Castração/tendências , Hipertensão/fisiopatologia , Caracteres Sexuais , Disfunção Ventricular Esquerda/prevenção & controle , Remodelação Ventricular/efeitos dos fármacos , Animais , Feminino , Hipertensão/tratamento farmacológico , Masculino , Técnicas de Cultura de Órgãos , Ratos , Ratos Endogâmicos SHR , Disfunção Ventricular Esquerda/induzido quimicamente , Disfunção Ventricular Esquerda/fisiopatologia , Remodelação Ventricular/fisiologia
13.
Asian-Australas J Anim Sci ; 30(5): 700-711, 2017 May.
Artigo em Inglês | MEDLINE | ID: mdl-27764914

RESUMO

OBJECTIVE: The current study aimed to investigate the impact of high-fat diets composed of different animal and vegetable fat sources on serum metabolic health markers in Japanese quail, as well as the overall lipid content and fatty acid profiles of the edible bird tissues following significantly increased dietary lipid supplementation. METHODS: Fifty seven male quail were divided into six groups and fed either a standard diet or a diet enriched with one of five different fats (22% coconut oil, lard, palm oil, soybean oil, or sunflower oil) for 12 weeks. The birds were subjected to an oral glucose tolerance test following the feeding period, after which they were euthanized and blood, liver, breast, and thigh muscle samples collected. Total fat content and fatty acid profiles of the tissue samples, as well as serum uric acid, triglyceride, cholesterol, total protein, albumin, aspartate transaminase, and total bilirubin concentrations were assessed. RESULTS: High-fat diet feeding had no significant effects on the glucose tolerance of the birds. Dietary fatty acid profiles of the added fats were reflected in the lipid profiles of both the liver and breast and thigh muscle tissues, indicating successful transfer of dietary fatty acids to the edible bird tissues. The significantly increased level of lipid inclusion in the diets of the quail used in the present study was unsuccessful in increasing the overall lipid content of the edible bird tissues. Serum metabolic health markers in birds on the high-fat diets were not significantly different from those observed in birds on the standard diet. CONCLUSION: Thus, despite the various high-fat diets modifying the fatty acid profile of the birds' tissues, unlike in most mammals, the birds maintained a normal health status following consumption of the various high-fat diets.

14.
Pharm Res ; 33(12): 3057-3071, 2016 12.
Artigo em Inglês | MEDLINE | ID: mdl-27599992

RESUMO

PURPOSE: A delayed release bio-polymeric Dual-Biotic system has been extensively evaluated in this study to overcome the therapeutic issue of probiotic killing due to incorrect administration with the antibiotic. METHODS: In vitro and ex vivo release and characterization studies have been undertaken on the Dual-Biotic system. In vivo analyses utilizing a Large White pig model were also performed with commercial products used as a comparison. Intestinal fluid for probiotic quantification was aspirated using a surgically implanted intestinal cannula with Lactobacillus acidophilus cell counts determined through luminescence and inoculation onto Lactobacilli-specific agar. Plasma amoxicillin concentrations were determined through Ultra-Performance Liquid Chromatography. The reactional profile and crosslinking mechanism of ovalbumin and genipin was elucidated using molecular mechanic energy relationships in a vacuum system by exploring the spatial disposition of different concentrations of genipin with respect to ovalbumin with ovalbumin/genipin ratios of 1:1, 1:5 and 1:10. RESULTS: In vivo evaluation of the Dual-Biotic system detailed maximum Lactobacillus viability (~455% baseline viability) 6 h after oral administration. Concurrent administration of the commercial products revealed a 75% decrease in bacterial viability when compared to the controls analyzed. A level A in vitro-in vivo correlation was also established with 96.9% predictability of amoxicillin release ascertained. The computational results achieved corroborated well with the experimental findings and physicochemical data. CONCLUSIONS: Evaluation and correlation of the Dual-Biotic system has detailed the success of the formulation for the concurrent delivery of an antibiotic and probiotic.


Assuntos
Amoxicilina/administração & dosagem , Antibacterianos/administração & dosagem , Probióticos/administração & dosagem , Administração Oral , Amoxicilina/química , Animais , Antibacterianos/química , Cromatografia Líquida de Alta Pressão , Simulação por Computador , Reagentes de Ligações Cruzadas/química , Sistemas de Liberação de Medicamentos , Liberação Controlada de Fármacos , Mucosa Intestinal/metabolismo , Iridoides/química , Lactobacillus acidophilus , Viabilidade Microbiana , Simulação de Acoplamento Molecular , Ovalbumina/química , Probióticos/química , Sus scrofa
16.
Pak J Pharm Sci ; 28(3): 1005-8, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-26004707

RESUMO

The fatty acid composition of the underutilised Cassia abbreviata seed oil was determined using gas chromatographic methods. C. abbreviata seeds yielded 9.53% of yellowish-green oil consisting mainly of oleic acid (37.8%), palmitic acid (26.5%), linoleic acid (26.7%), stearic acid (4.1%) and elaidic acid (2.1%). The oil was solid at room temperature, had a saponification value of 376.16 mg KOH/g and an iodine value of 26.48 g I2/100g oil. The fatty acid composition and saponification value of the C. abbreviata seed oil suggest that it may find application in both cosmetic and pharmaceutical natural product formulations.


Assuntos
Cassia , Ácidos Graxos/química , Óleos de Plantas/química , Sementes , Ácido Linoleico/química , Ácido Oleico/química , Ácidos Oleicos , Ácido Palmítico/química , Ácidos Esteáricos/química
17.
Indian J Exp Biol ; 51(4): 303-12, 2013 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24195350

RESUMO

The high intake of refined sugars, mainly fructose has been implicated in the epidemiology of metabolic diseases in adults and children. With an aim to determine whether honey can substitute refined sugars without adverse effect, the long-term effects of natural honey and cane syrup have been compared on visceral morphology in growing rats fed from neonatal age. Honey increased the caecum and pancreas weights in male rats, which could enhance enzymatic activities of pancreas and digestive functions by intestinal microflora of caecum. Unlike honey, cane syrup caused fatty degenerations in the liver of both male and female rats. Honey enhanced intestinal villi growth, and did not cause pathology in the rodents' abdominal viscera, suggesting potential nutritional benefit as substitution for refined sugars in animal feed.


Assuntos
Sacarose Alimentar/metabolismo , Mel , Vísceras/crescimento & desenvolvimento , Ração Animal , Animais , Ceco/crescimento & desenvolvimento , Feminino , Fígado/crescimento & desenvolvimento , Masculino , Tamanho do Órgão , Pâncreas/crescimento & desenvolvimento , Ratos , Ratos Sprague-Dawley , Fatores Sexuais
18.
Vet Anim Sci ; 19: 100283, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-36684817

RESUMO

Antibiotics are used to fortify broiler chicken feeds as growth promoters. Chronic antibiotic use pollutes the environment and causes the development of antibiotic resistance. Natural alternatives that mimic the properties of antibiotics, without causing health and environmental challenges are required. ß-sitosterol has antimicrobial, antioxidant, digestive and immune system modulating and growth stimulating activities. We evaluated its potential to replace oxytetracycline as a growth-promoter in broiler chicken feeds. Two hundred and forty, one-day-old Cobb 500 broiler chicks were randomly allocated to four diets where ß-sitosterol replaced oxytetracycline at 0 mg/kg (control; fortified with 50 mg/kg oxytetracycline), 500 mg/kg, 1000 mg/kg and 1500 mg/kg (w/w) feed and fed for 6 weeks: 2 weeks for each growth phase. Each diet was replicated thrice with 20 chicks per replicate. Initial, weekly and terminal body mass (TBM) and daily feed intake (FI) were measured. Body mass gain (BMG), average daily gain (ADG) and feed conversion ratio were computed. Terminally, the chickens were fasted for 4 h then slaughtered and dressed. Gastrointestinal tract (GIT) and GIT accessory viscera masses and small and large intestine lengths were measured. Dietary fortification with ß-sitosterol had similar effects (P > 0.05) to oxytetracycline on the chickens' TBM, BMG, ADG, FI and utilisation efficiency and GIT organ macromorphometry. In conclusion, ß-sitosterol can replace oxytetracycline in Cobb 500 broiler chicken feeds without compromising growth performance, feed intake and utilisation efficiency and GIT organ growth and development.

19.
Arch Physiol Biochem ; 129(3): 752-770, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-33569991

RESUMO

Although the prevalence of metabolic syndrome (MetS), a cluster of cardiometabolic risk factors that predispose to the development of type 2 diabetes mellitus and cardiovascular diseases, is increasing globally, there is no broad-spectrum agent for its holistic treatment. Natural plant-derived products with a wide spectrum of biological activities are currently being explored as alternatives in the management of diseases. Artemisia species are a heterozygous group of plants of the Compositae family that possess several health benefits. Here we highlight their antidiabetic, anti-obesity, anti-hyperlipidaemic, hepatoprotective and cardioprotective properties among others. These activities have been linked to the presence of phytochemicals that act on several molecular targets to exert their effects and the species of Artemisia are considered to be relatively safe. Artemisia species offer significant anti-MetS activity and thus are strong therapeutic candidates for the effective management of MetS.


Assuntos
Artemisia , Doenças Cardiovasculares , Diabetes Mellitus Tipo 2 , Síndrome Metabólica , Síndrome Metabólica/tratamento farmacológico , Diabetes Mellitus Tipo 2/etiologia , Artemisia/química , Obesidade/complicações , Doenças Cardiovasculares/tratamento farmacológico , Doenças Cardiovasculares/prevenção & controle
20.
Life (Basel) ; 12(6)2022 May 26.
Artigo em Inglês | MEDLINE | ID: mdl-35743821

RESUMO

High-fructose diets are linked with the development of non-alcoholic fatty liver disease (NAFLD), the management of which is a burden to society. Interventions with phytochemicals in the early postnatal period may prevent fructose-induced NAFLD later in adulthood. We investigated the protective potential of chrysin against fructose-induced NAFLD. Four-day-old male and female suckling Sprague Dawley rats (N = 112) were randomly grouped and orally gavaged daily with distilled water (negative Control-Cn + W), chrysin(Chr-100 mg/kg), fructose-solution (Fr-20% w/v), and Chr + Fr between postnatal day (PND) 4 and 21 and then weaned onto normal rat chow and plain drinking water to PND 55. From PND 56 to 130, half of the rats continued on plain water, and the rest had Fr as drinking fluid. Terminally, the liver tissue was collected, and the lipid content was determined and histologically assessed for NAFLD. Dietary Fr induced an increased hepatic lipid content (p = 0.0001 vs. Cn + W) both sexes, and it was only attenuated by neonatal Chr in female rats (p < 0.05). Histologically, there was increased microvesicular steatosis (p = 0.0001 vs. Cn + W) in both sexes, and it was prevented by neonatal Chr (p > 0.05). Fr caused macrovesicular steatosis (p = 0.01 vs. Cn + W) in females only, and chrysin did not prevent it (p > 0.05). Fr induced hepatocellular hypertrophy, and inflammation was observed in females only (p = 0.01 vs. Cn + W), and this was prevented by Chr (p > 0.05). The collagen area fraction was increased by Fr (p = 0.02 (males) and p = 0.04 (females) vs. Cn + W, respectively; however, chrysin did not prevent this (p > 0.05). Neonatal chrysin prevented some of the deleterious effects of the high-fructose diet on the liver, suggesting that chrysin should be further explored as a strategic prophylactic neonatal intervention against high-fructose-diet-induced NAFLD.

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