Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 425
Filtrar
1.
PLoS One ; 16(12): e0260923, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34914731

RESUMO

The experiment was conducted to study the effect of chicory root powder on the gut performance of broilers. For this purpose, two hundred commercial male broiler chicks were randomly divided into 5 treatment groups with 8 replications of 5 birds each and reared in battery brooders up to 42 days of age. The experimental design consisted of; T1 basal diet (BD) without antibiotic, T2: BD + antibiotic (BMD at 500 gm/ton), T3: BD + chicory root powder (0.5%), T4: BD + chicory root powder (1.0%), T5: BD + chicory root powder (1.5%). The results revealed that supplementation of 1.0% chicory root powder recorded significantly (P<0.05) higher body weight gain, feed intake and better feed conversion ratio (FCR) compared to antibiotic, control and 0.5 & 1.5% chicory powder at 42 days of age. Supplementation of various levels of chicory root powder significantly (P<0.05) lowered (P<0.05) the pH in duodenum, jejunum, ileum and caecum compared to control. Supplementation of chicory root powder (0.5, 1.0 & 1.5%) significantly (P<0.05) decreased the E. coli and Salmonella counts and (P<0.05) increased the Lactobacilli counts in ileum when compared to control and antibiotic groups. Supplementation of chicory (1.0% and 1.5%) groups significantly (P<0.05) increased the villus height (VH), crypt depth (CD), VH:CD ratio and villus width (VW) in the duodenum, ileum and jejunum at 42 d of age. Supplementation of chicory 1.0% and 1.5% groups significantly (P<0.05) increased the goblet cell number in duodenum, jejunum and ileum of broilers. Therefore, chicory root powder (1.0 and 1.5%) can be used as an alternative to antibiotic for improving gut performance of broiler chicken.


Assuntos
Ração Animal/análise , Antibacterianos/farmacologia , Dieta/veterinária , Microbioma Gastrointestinal , Trato Gastrointestinal/efeitos dos fármacos , Pós/administração & dosagem , Fenômenos Fisiológicos da Nutrição Animal , Animais , Galinhas , Suplementos Nutricionais , Concentração de Íons de Hidrogênio , Masculino , Probióticos
2.
PLoS One ; 16(12): e0260773, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34855857

RESUMO

BACKGROUND: The effectiveness of micronutrient powder (MNP) on the health outcome of children is yet to be proved. Although studies identified the barriers to the use of MNP the underlying factors related to the barriers to the use of MNP are still unexplored. We examined the underlying factors associated with the barriers reported by the caregivers of the children aged 6-59 months in Bangladesh. METHODS: We analyzed pooled data of 3, 634 caregiver-child dyads extracted from eight cross-sectional surveys. The surveys were conducted as part of an evaluation of the Maternal, Infant and Young Children Nutrition programme (phase 2) in Bangladesh. We performed univariate analysis to find the barriers reported by the caregivers of the children. We identified the underlying factors related to the reported barriers by performing multiple logistic regression analysis. RESULTS: The mostly reported barrier was perceived lack of need for MNP among the caregivers of the children (39.9%), followed by lack of awareness of the product (21.7%) and cost of the product (18.1%). Caregivers of older children (adjusted odds ratio (aOR): 1.69; 95% CI: 1.43, 2.00) and caregivers who maintained good infant and young child feeding practices (aOR: 1.32; 95% CI: 1.12, 1.57) perceived more lack of need for MNP. Caregivers of the female children (aOR: 0.79; 95% CI: 0.63, 0.98) were less likely to report that their children disliked MNP compared to the caregivers of the male children. CONCLUSION: Programmes intended to effectively promote MNP among the caregivers of children aged 6-59 months should carefully consider the factors that could underlie the barriers to the use of MNP.


Assuntos
Cuidadores/psicologia , Fenômenos Fisiológicos da Nutrição Infantil , Suplementos Nutricionais , Alimentos Fortificados/estatística & dados numéricos , Fenômenos Fisiológicos da Nutrição do Lactente , Micronutrientes/administração & dosagem , Pós/administração & dosagem , Adulto , Bangladesh , Pré-Escolar , Estudos Transversais , Comportamento Alimentar , Feminino , Humanos , Lactente , Masculino
3.
Int J Mol Sci ; 22(19)2021 Sep 30.
Artigo em Inglês | MEDLINE | ID: mdl-34638984

RESUMO

The goal of diabetes care is to achieve and maintain good glycemic control over time, so as to prevent or delay the development of micro- and macrovascular complications in type 1 (T1D) and type 2 diabetes (T2D). However, numerous barriers hinder the achievement of this goal, first of all the frequent episodes of hypoglycemia typical in patients treated with insulin as T1D patients, or sulphonylureas as T2D patients. The prevention strategy and treatment of hypoglycemia are important for the well-being of patients with diabetes. Hypoglycemia is strongly associated with an increased risk of cardiovascular disease in diabetic patients, due probably to the release of inflammatory markers and prothrombotic effects triggered by hypoglycemia. Treatment of hypoglycemia is traditionally based on administration of carbohydrates or of glucagon via intramuscular (IM) or subcutaneous injection (SC). The injection of traditional glucagon is cumbersome, such that glucagon is an under-utilized drug. In 1983, it was shown for the first time that intranasal (IN) glucagon increases blood glucose levels in healthy volunteers, and in 1989-1992 that IN glucagon is similar to IM glucagon in resolving hypoglycemia in normal volunteers and in patients with diabetes, both adults and children. IN glucagon was developed in 2010 and continued in 2015; in 2019 IN glucagon obtained approval in the US, Canada, and Europe for severe hypoglycemia in children and adults. In the 2010s, two ready-to-use injectable formulations, a stable non-aqueous glucagon solution and the glucagon analog dasiglucagon, were developed, showing an efficacy similar to traditional glucagon, and approved in the US in 2020 and in 2021, respectively, for severe hypoglycemia in adults and in children. Fast-acting glucagon (nasal administration and injected solutions) appears to represent a major breakthrough in the treatment of severe hypoglycemia in insulin-treated patients with diabetes, both adults and children. It is anticipated that the availability of fast-acting glucagon will expand the use of glucagon, improve overall metabolic control, and prevent hypoglycemia-related complications, in particular cardiovascular complications and cognitive impairment.


Assuntos
Administração Intranasal/métodos , Cuidados Críticos/métodos , Glucagon/análogos & derivados , Hipoglicemia/tratamento farmacológico , Adulto , Criança , Diabetes Mellitus Tipo 1/tratamento farmacológico , Diabetes Mellitus Tipo 2/tratamento farmacológico , Glucagon/administração & dosagem , Humanos , Hipoglicemia/induzido quimicamente , Hipoglicemiantes/efeitos adversos , Injeções Subcutâneas , Insulina/efeitos adversos , Insulina Regular Humana/uso terapêutico , Pós/administração & dosagem , Compostos de Sulfonilureia/efeitos adversos , Resultado do Tratamento
4.
Carbohydr Polym ; 273: 118543, 2021 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-34560955

RESUMO

Electrospray was used as a one-step technique to generate inhalable ciprofloxacin-loaded chitosan sub-micron particles with potential use in the treatment of pulmonary infections. The effect of operating parameters was studied and the preparation method optimized. The final sizes of ciprofloxacin-loaded particles were 386.1 ± 248.5 nm and 501.1 ± 276.3 nm for high and low molecular weight chitosan, respectively. The high surface charge of the particles formed, around +45 mV, enhances their mucoadhesive properties. The particles were biocompatible with alveolar cell line (A549), and showed a high antimicrobial activity against two of the most common respiratory pathogens Staphylococcus aureus and Pseudomonas aeruginosa.


Assuntos
Quitosana/farmacologia , Ciprofloxacina/farmacologia , Pneumopatias/tratamento farmacológico , Pós/farmacologia , Células A549 , Administração por Inalação , Antibacterianos/farmacologia , Quitosana/química , Ciprofloxacina/administração & dosagem , Ciprofloxacina/química , Humanos , Pneumopatias/metabolismo , Testes de Sensibilidade Microbiana , Tamanho da Partícula , Pós/administração & dosagem , Pós/química , Pseudomonas aeruginosa/efeitos dos fármacos , Espectroscopia de Infravermelho com Transformada de Fourier/métodos , Staphylococcus aureus/efeitos dos fármacos
5.
Pak J Biol Sci ; 24(9): 978-983, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-34585550

RESUMO

<b>Background and Objective:</b> Nowadays, Dyes is widely used to improve fingerprints identification test. Natural dyes are another interesting way that can be used instead of chemical dyes because of its non-toxicity and lower cost. In this research, the development of rust powder from <i>Plumeria</i> tree was applied for fingerprints identification due to its fluorescence property under UV. Rust and Small Particle Reagent (SPR), containing ZnCO<sub>3 </sub>were applied to detect hidden fingerprints on non-porous surfaces in both dried and wet condition. <b>Materials and Methods:</b> Yellowish Rust from <i>Plumeria</i> tree was extracted with ethanol, grinded, dried and then mixed with ZnCO<sub>3</sub>. Powder slurry was sprayed over fingerprint mark on different surfaces and monitored in both dried and wet condition. Visualization of fingerprint under UV was observed. Scanning microscope (SEM), UV-visible spectroscopy (UV-VIS), Fourier-Transform Infrared Spectroscopy (FTIR) and Energy-Dispersive X-ray (EDX) were also used to characterize physical and chemical properties of rust powder. <b>Results:</b> Fingerprints identification by dust technique using <i>Plumeria</i> rust powder as ingredient, provide best quality enhancement of fingerprints under UV light due to its fluorescent property, whereas a conventional technique of Small Particle Reagent technique (SPR) doesn't show fluorescent under UV. Data from SEM and FTIR show slight adhesion between zinc carbonate particles and rust powder. <b>Conclusion:</b> Fluorescence properties of rust powder is still interesting. Further improvement in powder recipe will be further investigated.


Assuntos
Dermatoglifia , Ciências Forenses/instrumentação , Luminescência , Pós/administração & dosagem , Ciências Forenses/métodos , Ciências Forenses/tendências , Humanos , Pós/análise , Espectroscopia de Infravermelho com Transformada de Fourier/métodos
6.
Sci Rep ; 11(1): 16360, 2021 08 11.
Artigo em Inglês | MEDLINE | ID: mdl-34381095

RESUMO

Tobacco bacterial wilt (TBW) is seriously damages the growth of tobacco. There is an urgent need to find a safer and more effective measure to control TBW. In this study, B. amyloliquefaciens ZM9 and marigold powder were applied to the tobacco roots alone or in combination, and the potential inhibition of TBW was assessed. On the other hand, the effects of these treatments on soil physicochemical properties, rhizosphere microbial community and soil metabolites were also evaluated. The results showed that the application of B. amyloliquefaciens ZM9 or marigold powder alone significantly reduced the abundance of R. solanacearum in rhizosphere soil, while the integrated treatment showed the strongest inhibitory effect. Moreover, the integrated treatment can inhibit the secretion of chemoattractants, and affect the change of rhizosphere soil microbial composition. In conclusion, the combination of antagonistic bacteria agent B. amyloliquefaciens ZM9 with marigold powder can enhance the suppression of TBW. Furthermore, B. amyloliquefaciens ZM9 and marigold have synergistic effects on suppressing TBW by regulation soil physicochemical properties, soil metabolites and microbial structure. This study provide a promising strategy for TBW control by integrated applying of B. amyloliquefaciens ZM9 and marigold powder.


Assuntos
Bacillus/fisiologia , Agentes de Controle Biológico/administração & dosagem , Microbiota/fisiologia , Doenças das Plantas/microbiologia , Pós/administração & dosagem , Raízes de Plantas/microbiologia , Rizosfera , Solo , Microbiologia do Solo
7.
Biomed Pharmacother ; 139: 111716, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-34243618

RESUMO

Despite the advances in targeted therapies and immunotherapy for non-small cell lung cancer (NSCLC) patients, the intravenous administration of carboplatin (CARB) and paclitaxel (PTX) in well-spaced cycles is widely indicated for the treatment of NSCLC from stage II to stage IV. Our strategy was to add a controlled-release cisplatin-based dry-powder for inhalation (CIS-DPI-ET) to the conventional CARB-PTX-IV doublet, administered during the treatment off-cycles to intensify the therapeutic response while avoiding the impairment of pulmonary, renal and haematological tolerance of these combinations. The co-administration of CIS-DPI-ET (0.5 mg/kg) and CARB-PTX-IV (17-10 mg/kg) the same day showed a higher proportion of neutrophils in BALF (35 ± 7% vs 1.3 ± 0.8%), with earlier regenerative anaemia than with CARB-PTX-IV alone. A first strategy of CARB-PTX-IV dose reduction by 25% also induced neutrophil recruitment, but in a lower proportion than with the first combination (20 ± 6% vs 0.3 ± 0.3%) and avoiding regenerative anaemia. A second strategy of delaying CIS-DPI-ET and CARB-PTX-IV administrations by 24 h avoided both the recruitment of neutrophils in BALF and regenerative anaemia. Moreover, all these groups showed higher cytotoxicity (LDH activity, protein content) with no higher renal toxicities. These two strategies seem interesting to be assessed in terms of antitumor efficacy in mice.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Carboplatina/administração & dosagem , Carcinoma Pulmonar de Células não Pequenas/tratamento farmacológico , Cisplatino/administração & dosagem , Neoplasias Pulmonares/tratamento farmacológico , Paclitaxel/administração & dosagem , Pós/administração & dosagem , Administração por Inalação , Idoso , Animais , Feminino , Humanos , Masculino , Camundongos , Camundongos Endogâmicos BALB C
8.
Fish Shellfish Immunol ; 115: 212-220, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-34146675

RESUMO

Eight weeks feeding experiment was managed to evaluate the impacts of dietary addition of pineapple peel powder (PAPP) and Lactobacillus plantarum CR1T5 (LP) individual or mixed on growth performance, skin mucus and serum immunities, as well as disease resistance of Nile tilapia. Fish (average weight 20.91 ± 0.11 g) were fed four diets: Diet 1 (0 g kg-1 PAPP and 0 CFU g-1 L. plantarum, Diet 2 (10 g kg-1 PAPP), Diet 3 (108 CFU g-1L. plantarum), and Diet 4 (10 g kg-1 PAPP + 108 CFU g-1L. plantarum). Serum and mucus immune responses, as well as growth rate, were assessed every 4 weeks. Ten fish were chosen for the challenge test with Streptococcus agalactiae after 8 weeks post-feeding. The findings showed that PAPP and/or LP diets increased (P ≤ 0.05) growth performance, skin mucus, and serum immune responses. The best data were obtained in fish fed a mixture of PAPP and LP. Nevertheless, no variation (P > 0.05) was recorded between groups fed PAPP or LP. The relative survival percentage (RSP, %) in Diet 2, Diet 3, and Diet 4 was 46.15%, 50.0%, and 73.08%. Fish fed mixture of PAPP + LP recorded the best (P < 0.05) survival rate versus other treatments. The current findings recommended using a mixture of PAPP and LP as promising functional additives for aquaculture practice.


Assuntos
Ananas/química , Ciclídeos/imunologia , Resistência à Doença , Imunidade Inata , Lactobacillus plantarum/química , Probióticos/metabolismo , Ração Animal/análise , Animais , Aquicultura , Ciclídeos/crescimento & desenvolvimento , Dieta/veterinária , Suplementos Nutricionais/análise , Resistência à Doença/efeitos dos fármacos , Frutas/química , Imunidade Inata/efeitos dos fármacos , Pós/administração & dosagem , Pós/química , Probióticos/administração & dosagem , Distribuição Aleatória
9.
Ann N Y Acad Sci ; 1502(1): 28-39, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-34169531

RESUMO

Micronutrient powder (MNP) can reduce iron deficiency in young children, which has been well established in efficacy trials. However, the cost of different delivery platforms has not been determined. We calculated the cost and cost-efficiency of distributed MNP through community-based mechanisms and in health facilities in a primarily rural district in Uganda. An endline survey (n = 1072) identified reach and adherence. During the 9-month pilot, 37,458 (community platform) and 12,390 (facility platform) packets of MNP were distributed. Each packet consisted of 30 MNP sachets. In 2016, total costs were $277,082 (community platform, $0.24/sachet) and $221,568 (facility platform, $0.59/sachet). The cost per child reached was lower in the community platform ($53.24) than the facility platform ($65.97). The cost per child adhering to a protocol was $58.08 (community platform) and $72.69 (facility platform). The estimated cost of scaling up the community platform pilot to the district level over 3 years to cover approximately 17,890 children was $1.23 million (scale-up integrated into a partner agency program) to $1.62 million (government scale-up scenario). Unlike previous estimates, these included opportunity costs. Community-based MNP delivery costs were greater, yet more cost-efficient per child reached and adhering to protocol than facility-based delivery. However, total costs for untargeted MNP delivery under program settings are potentially prohibitive.


Assuntos
Transtornos da Nutrição Infantil/dietoterapia , Transtornos da Nutrição Infantil/epidemiologia , Suplementos Nutricionais , Micronutrientes/administração & dosagem , Pós/administração & dosagem , População Rural , Transtornos da Nutrição Infantil/etiologia , Transtornos da Nutrição Infantil/prevenção & controle , Pré-Escolar , Análise Custo-Benefício , Feminino , Humanos , Lactente , Masculino , Micronutrientes/química , Inquéritos Nutricionais , Vigilância em Saúde Pública , Uganda/epidemiologia
10.
Dig Liver Dis ; 53(10): 1327-1333, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-34120857

RESUMO

BACKGROUND: There is limited evidence on the efficacy of hemostatic powders in the management of lower gastrointestinal bleeding. AIMS: to revise our series of patients with lower gastrointestinal bleeding treated with hemostatic powders and to provide a pooled estimate of their efficacy based on the current literature. METHODS: Sixty-five patients underwent topical endoscopic application of hemostatic powder between 2016 and 2020. The primary endpoint was treatment success, with 7- and 30-day rebleeding rate, adverse events and mortality as secondary outcomes. Literature review was based on computerized bibliographic search on the main databases through December 2020. Pooled effects were calculated using a random-effects model. RESULTS: Overall, the powder was applied as monotherapy in 37 patients (56.9%), as combination therapy in 15 patients (23.4%), and as rescue therapy in 13 cases (19.9%). Hemostasis was achieved in 100% of patients. Rebleeding rate at 7- and 30-day was 7.7% and 9.2%, respectively. A total of 10 studies with 259 patients were included in the meta-analysis. Immediate hemostasis was achieved in 96.3% (93.4%-99.2%) patients, whereas pooled 7- and 30-day rebleeding rates were 9.6% (4.5%-14.6%) and 12.9% (7.2%-18.5%), respectively. CONCLUSION: Novel hemostatic powders represent a user-friendly and effective tool in the management of lower gastrointestinal bleeding.


Assuntos
Hemorragia Gastrointestinal/tratamento farmacológico , Hemostase Endoscópica/métodos , Hemostáticos/administração & dosagem , Pós/administração & dosagem , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Trato Gastrointestinal Inferior , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos
11.
Eur J Pharm Biopharm ; 166: 75-86, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34058328

RESUMO

Pharmaceutical formulations utilizing protein drugs as powders can be used as drug delivery systems in various ways. Besides powders for inhalation, another promising approach is their use as suspensions in non-aqueous liquids for subcutaneous administration providing high protein stability and good injectability. In this study protein powder suspensions were prepared using a swing-mill. Milling of lyophilizates containing a model monoclonal antibody in presence of the suspension vehicle was compared to cryogenic dry milling. Wet media milling led to injectable suspensions, but resulted in monomer loss and increase in protein aggregation. When the lyophilizates were cryogenic dry ball milled less aggregation and monomer loss were detected. Differences related to protein integrity were found for different process parameters, which were successfully optimized. If not cooled with liquid nitrogen, dry milling resulted in increased damage to the mAb. The type of polyol stabilizer, as well as the protein to stabilizer ratio, did not affect the preservation of protein integrity. As finding the right milling duration is time and resource intensive, a correlation between lyophilizate cake hardness and milling duration was established. Based on this approach high concentration lyophilizates were successfully micronized. Suspensions of cryogenic milled powders lead to clogging of 25G needles, which could be prevented by an additional sieving step. Depending on the suspension vehicle, low viscosity formulations (<10 mPa·s) even at high concentrations (≥100 mg/ml protein concentration) were obtained featuring good injectability.


Assuntos
Composição de Medicamentos/métodos , Pós , Estabilidade Proteica , Química Farmacêutica , Sistemas de Liberação de Medicamentos/métodos , Excipientes/farmacologia , Liofilização/métodos , Injeções Subcutâneas , Pós/administração & dosagem , Pós/farmacologia , Suspensões/farmacologia , Viscosidade
12.
Eur J Pharm Biopharm ; 164: 93-104, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-33957225

RESUMO

Cisplatin is one of the most commonly used chemotherapy in lung cancer despite its high nephrotoxicity leading to an administration only every 3-4 weeks. This study is the first report of a preclinical investigation of therapeutic intensification combining a cisplatin dry powder for inhalation (CIS-DPI) with an intravenous (iv) cisplatin-based treatment. CIS-DPI with 50% cisplatin content (CIS-DPI-50) was developed using lipid excipients through scalable processes (high-speed and high-pressure homogenization and spray-drying). CIS-DPI-50 showed good aerodynamic performance (fine particle fraction of ~ 55% and a mass median aerodynamic particle size of ~ 2 µm) and a seven-fold increase and decrease in Cmax in the lungs and in plasma, respectively, in comparison with an iv cisplatin solution (CIS-iv) in healthy mice. Finally, the addition of CIS-DPI-50 to the standard cisplatin/paclitaxel iv doublet increased the response rate (67% vs 50%), decreased the tumour growth and prolonged the median survival (31 vs 21 days), compared to the iv doublet in the M109 lung carcinoma model tending to demonstrate a therapeutic intensification of cisplatin.


Assuntos
Cisplatino/administração & dosagem , Neoplasias Pulmonares/tratamento farmacológico , Pós/administração & dosagem , Administração por Inalação , Aerossóis/administração & dosagem , Animais , Dessecação/métodos , Inaladores de Pó Seco/métodos , Excipientes/administração & dosagem , Feminino , Pulmão/efeitos dos fármacos , Camundongos , Camundongos Endogâmicos BALB C , Tamanho da Partícula
13.
Eur J Pharm Biopharm ; 163: 198-211, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-33852968

RESUMO

Oral inhalation is the preferred route for delivery of small molecules to the lungs, because high tissue levels can be achieved shortly after application. Biologics are mainly administered by intravenous injection but inhalation might be beneficial for the treatment of lung diseases (e.g. asthma). This review discusses biological and pharmaceutical challenges for delivery of biologics and describes promising candidates. Insufficient stability of the proteins during aerosolization and the biological environment of the lung are the main obstacles for pulmonary delivery of biologics. Novel nebulizers will improve delivery by inducing less shear stress and administration as dry powder appears suitable for delivery of biologics. Other promising strategies include pegylation and development of antibody fragments, while carrier-encapsulated systems currently play no major role in pulmonary delivery of biologics for lung disease. While development of various biologics has been halted or has shown little effects, AIR DNase, alpha1-proteinase inhibitor, recombinant neuraminidase, and heparin are currently being evaluated in phase III trials. Several biologics are being tested for the treatment of coronavirus disease (COVID)-19, and it is expected that these trials will lead to improvements in pulmonary delivery of biologics.


Assuntos
Pneumopatias/tratamento farmacológico , Pulmão/efeitos dos fármacos , Peptídeos/administração & dosagem , Proteínas/administração & dosagem , Administração por Inalação , Administração Oral , Animais , Produtos Biológicos/administração & dosagem , Portadores de Fármacos/química , Sistemas de Liberação de Medicamentos/métodos , Humanos , Nebulizadores e Vaporizadores , Pós/administração & dosagem
14.
PLoS One ; 16(4): e0250261, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33878116

RESUMO

Obesity is an enduring medical issue that has raised concerns around the world. Natural plant extracts have shown therapeutic potential in preventing oxidative stress and inflammation related to obesity complications. In this study, Senna alexandrina Mill. leaves were utilized to treat high-fat diet-related metabolic disorders and non-alcoholic fatty liver diseases. Plasma biochemical assays were conducted to determine the lipid profiles and oxidative stress parameters, and the gene expression of antioxidant enzymes and inflammatory mediators was measured. Histological stained livers of high-fat diet-fed rats were observed. S. alexandrina leaf powder supplementation prevented the increase in cholesterol and triglyceride levels in high-fat diet-fed rats. Moreover, S. alexandrina leaves also reduced lipid peroxidation and nitric oxide production in these rats. Prevention of oxidative stress by S. alexandrina leaf supplementation in high-fat diet-fed rats is regulated by enhancing the antioxidant enzyme activity, followed by the restoration of corresponding gene expressions, such as NRF-2, HO-1, SOD, and CAT. Histological staining provides further evidence that S. alexandrina leaf supplementation prevents inflammatory cell infiltration, lipid droplet deposition, and fibrosis in the liver of high-fat diet-fed rats. Furthermore, this investigation revealed that S. alexandrina leaf supplementation controlled non-alcoholic fatty liver disease by modulating the expression of fat metabolizing enzymes in high-fat diet-fed rats. Therefore, S. alexandrina leaf supplementation inhibits fatty liver inflammation and fibrosis, suggesting its usefulness in treating non-alcoholic steatohepatitis. Thus, this natural leaf extract has potential in treatment of obesity related liver dysfunction.


Assuntos
Fármacos Antiobesidade/farmacologia , Fígado Gorduroso/dietoterapia , Obesidade/dietoterapia , Estresse Oxidativo/efeitos dos fármacos , Folhas de Planta/química , Senna (Planta)/química , Animais , Fármacos Antiobesidade/química , Catalase/genética , Catalase/metabolismo , HDL-Colesterol/sangue , LDL-Colesterol/sangue , Dieta Hiperlipídica/efeitos adversos , Fígado Gorduroso/etiologia , Fígado Gorduroso/metabolismo , Fígado Gorduroso/patologia , Regulação da Expressão Gênica , Heme Oxigenase (Desciclizante)/genética , Heme Oxigenase (Desciclizante)/metabolismo , Gotículas Lipídicas/efeitos dos fármacos , Peroxidação de Lipídeos/efeitos dos fármacos , Fígado/efeitos dos fármacos , Fígado/metabolismo , Fígado/patologia , Masculino , Fator 2 Relacionado a NF-E2/genética , Fator 2 Relacionado a NF-E2/metabolismo , Obesidade/etiologia , Obesidade/metabolismo , Obesidade/patologia , Pós/administração & dosagem , Ratos , Ratos Wistar , Superóxido Dismutase/genética , Superóxido Dismutase/metabolismo , Triglicerídeos/sangue
15.
Inhal Toxicol ; 33(2): 55-65, 2021 02.
Artigo em Inglês | MEDLINE | ID: mdl-33622153

RESUMO

PURPOSE: Limited number of studies investigated the effects of Electrostatic powder paints (EPP) on human health. We investigated the effects of EPP exposure on lung function, exercise capacity, and quality of life, and the factors determining exercise capacity in EPP workers. METHODS: Fifty-four male EPP workers and 54 age-matched healthy male individuals (control group) were included. Lung function and respiratory muscle strength were measured. The lower limit of normal (LLN) cut-points for FEV1 and FEV1/FVC were calculated. An EPT was used to evaluate bronchial hyperactivity. The handgrip and quadriceps muscle strength were evaluated using a hand-held dynamometer. An ISWT was used to determine exercise capacity. The physical activity level was questioned using the IPAQ. The SGRQ and NHP were used to assessing respiratory specific and general quality of life, respectively. RESULTS: Duration of work, FEV1, MIP, handgrip strength, and ISWT distance were significantly lower, and the change in FEV1 after EPT and %HRmax were significantly higher in the EPP group compared to the control group (p < 0.05). There were no subjects with a < LLN for FEV1 and FEV1/FVC in both groups. In the EPP group, ISWT distance was significantly related to age, height, duration of work, FEV1, change in FEV1 after EPT, MIP, MEP, handgrip strength, IPAQ, SGRQ, and NHP total scores (p < 0.05). The change in FEV1 after EPT, MIP, and duration of work explained % 62 of the variance in the ISWT distance (p < 0.001). CONCLUSIONS: Changes in lung function based on LLN for the FEV1 and FEV1/FVC were not clinically relevant in EPP workers. Exercise capacity is impaired in EPP workers. Degree of exercise-induced bronchospasm, inspiratory muscle strength, and duration of work are the determinants of exercise capacity in EPP workers.


Assuntos
Tolerância ao Exercício/efeitos dos fármacos , Exposição Ocupacional , Pintura/análise , Poliésteres/toxicidade , Pós/toxicidade , Músculos Respiratórios/efeitos dos fármacos , Adulto , Estudos de Casos e Controles , Humanos , Masculino , Força Muscular/efeitos dos fármacos , Pintura/efeitos adversos , Poliésteres/administração & dosagem , Poliésteres/análise , Pós/administração & dosagem , Pós/efeitos adversos , Testes de Função Respiratória , Caminhada , Adulto Jovem
16.
Trop Anim Health Prod ; 53(1): 83, 2021 Jan 07.
Artigo em Inglês | MEDLINE | ID: mdl-33411117

RESUMO

This experiment examines the effects of bamboo charcoal (BC) powder, bamboo vinegar (BV), and their combination (BCV) in the diet of laying hens on performance, egg quality, relative organ weights, and intestinal bacterial populations. A total of 320 laying hens (36 weeks of age) were divided into 4 treatment groups, with 10 replicates per treatment and 8 hens per replicate. They were fed on a control diet, the control diet supplemented with 0.8% BC, the control diet supplemented with 0.4% BV, or the control diet supplemented with a combination of BC (0.8%) and BV (0.4%) from 36 to 51 weeks of age. Egg production increased in the hens fed the BV and BCV diets during 48 to 51 weeks of age (P < 0.05). Damaged egg rate decreased in the hens fed the BV and BCV diets for the whole experiment (P < 0.05). Shell thickness was highest in the BCV-fed group at week 43, and shell strength was higher in the BV-fed group at week 51 (P < 0.05). Supplementation of BC or BCV in the diet resulted in a decreased abdominal fat pad (P < 0.05). In the ileal content, the population of Salmonella spp. decreased in the BV and BCV groups and the population of Lactobacillus spp. increased in the BV group (P < 0.05). The present results indicate that feeding BV or BCV alleviates damaged egg rate and decreases intestinal pathogenic bacteria, while feeding BC benefits by reducing abdominal fat. These results suggest that the effect of BCV seems to be induced by the synergistic effect of BC and BV, and that the BCV contributes to the effective use of bamboo on the laying hen's production.


Assuntos
Ácido Acético/metabolismo , Carvão Vegetal/metabolismo , Galinhas/fisiologia , Microbioma Gastrointestinal/efeitos dos fármacos , Tamanho do Órgão/efeitos dos fármacos , Óvulo/efeitos dos fármacos , Poaceae/química , Ácido Acético/administração & dosagem , Ração Animal/análise , Animais , Bactérias/efeitos dos fármacos , Carvão Vegetal/administração & dosagem , Dieta/veterinária , Suplementos Nutricionais/análise , Feminino , Pós/administração & dosagem , Pós/metabolismo , Distribuição Aleatória
17.
Nutr Hosp ; 38(1): 139-145, 2021 Feb 23.
Artigo em Inglês | MEDLINE | ID: mdl-33319566

RESUMO

INTRODUCTION: Introduction: fibromyalgia (FM) is a chronic rheumatic disorder that is related to high levels of cholesterol, high values of diastolic pressure, higher waist-to-hip-ratio (WHR), and higher body mass index. Objectives: the aim of this study was to evaluate the effects of Ganoderma lucidum (GL) and Ceratonia siliqua (CS) on blood parameters and anthropometrical measures in women with fibromyalgia. Methods: a double-blind randomized pilot trial was carried out. One group took 6 g/day of micro-milled carpophore powder of GL for 6 weeks, while the second group took the same dose of CS flour. Fasting glucose, cholesterol, triglycerides levels, weight, fat mass, muscular mass, waist-hip ratio, and blood pressure were assessed. Results: our results did not show any statistically significant differences in any of the outcome measures, even if there was a CS tendency to reduce fasting glucose levels and increase WHR. Conclusions: our results did not support the utility of both GL and CS as nutritional supplements to control blood parameters and anthropometric measures as assessed in women with fibromyalgia. Due to the limitations of the research, additional studies will be necessary to confirm our findings.


INTRODUCCIÓN: Introducción: la fibromialgia (FM) es una afección reumática crónica que está relacionada con altos niveles de colesterol, altos valores de presión diastólica, una mayor relación cintura-cadera y un mayor índice de masa corporal. Objetivos: el objetivo de este estudio fue evaluar los efectos de Ganoderma lucidum (GL) y Ceratonia siliqua (CS) sobre los parámetros sanguíneos y antropométricos de mujeres con fibromialgia. Métodos: se realizó un ensayo piloto aleatorizado con doble ciego. Un grupo tomó 6 g/día de carpóforos micromolidos de GL durante 6 semanas, mientras que el segundo grupo tomó la misma dosis de harina de CS. Se evaluaron los niveles de glucosa, colesterol y triglicéridos, el peso, la masa grasa, la masa muscular, la relación cintura-cadera y la presión arterial. Resultados: los resultados no han evidenciado ninguna diferencia estadísticamente significativa entre el GL y la CS en ninguna de las medidas analizadas, aunque hubo tendencia de la CS a reducir los niveles de glucosa y aumentar la relación cintura-cadera. Conclusiones: los resultados obtenidos indican que la suplementación de la dieta con GL y CS no tiene efectos positivos sobre los parámetros sanguíneos y antropométricos analizados en las mujeres con fibromialgia. Debido a las limitaciones del estudio, será necesario confirmar estos datos con ulteriores investigaciones.


Assuntos
Composição Corporal , Fabaceae , Fibromialgia/sangue , Reishi , Glicemia/análise , Pressão Sanguínea , Índice de Massa Corporal , Peso Corporal , Colesterol/sangue , Suplementos Nutricionais , Método Duplo-Cego , Jejum/sangue , Feminino , Fibromialgia/fisiopatologia , Farinha , Humanos , Lipídeos/sangue , Pessoa de Meia-Idade , Projetos Piloto , Pós/administração & dosagem , Triglicerídeos/sangue , Relação Cintura-Quadril
18.
Arch Pharm Res ; 44(8): 1-12, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25074038

RESUMO

This study investigates the hepatoprotective effects and the potential therapeutic mechanisms of loach (Misgurnus anguillicaudatus) lyophilized powder (MLP) on dimethylnitrosamine (DMN) induced liver fibrosis in rats. After treatment with MLP (50, 100, 200 mg/kg), alanine aminotransferase (ALT), aspartate aminotransferase (AST), albumin (Alb), total protein (TP) and hydroxyproline (Hyp) levels were detected, to assess the destruction of hepatocytes and the extent of liver fibrosis. Matrix metalloproteinase-2 (MMP-2), matrix metalloproteinase-9 (MMP-9), hyaluronic acid (HA), Laminin (LN), procollagen type-III (PC-III), collagen type-IV (C-IV), and transforming growth factor-ß1 (TGF-ß1) contents in serum were all tested using ELISA kits. Alpha-smooth muscle actin (α-SMA) and the tissue inhibitor of metalloproteinase-1 (TIMP-1) protein contents and distribution were evaluated using western blot and immunohistochemical analysis. MLP significantly decreased the serum concentrations of ALT, AST, Hyp, HA, LN, PC-III, C-IV, MMP-2, TIMP-1, α-SMA and TGF-ß1, while increasing the contents of Alb and MMP-9. No significant changes on TP serum concentrations were observed. These results suggest that MLP has anti-hepatic fibrosis effects and its mechanism may be associated with the attenuation of extracellular matrix (ECM) synthesis, the acceleration of ECM degradation, inhibition of hepatic stellate cells (HSCs) activation and TGF-ß1 expression.


Assuntos
Cipriniformes/metabolismo , Cirrose Hepática Experimental/prevenção & controle , Pós/farmacologia , Animais , Dimetilnitrosamina , Modelos Animais de Doenças , Relação Dose-Resposta a Droga , Matriz Extracelular/efeitos dos fármacos , Matriz Extracelular/metabolismo , Células Estreladas do Fígado/efeitos dos fármacos , Células Estreladas do Fígado/patologia , Hepatócitos/efeitos dos fármacos , Hepatócitos/patologia , Masculino , Pós/administração & dosagem , Pós/isolamento & purificação , Ratos , Ratos Wistar , Fator de Crescimento Transformador beta1/metabolismo
19.
J Ethnopharmacol ; 269: 113722, 2021 Apr 06.
Artigo em Inglês | MEDLINE | ID: mdl-33352240

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: Poria cocos (Schw.) Wolf (Poria) is a well-known traditional medicinal fungus. It has been considered to possess spleen-invigorating (Jianpi) effects in traditional Chinese medicine, and is used clinically to treat spleen deficiency (Pixu) with symptoms of intestinal disorders such as diarrhea, indigestion, mucositis and weight loss. THE AIM OF THIS STUDY: To investigate the protective effects of Poria and its three component fractions (Water-soluble polysaccharides, WP; alkali-soluble polysaccharides, AP; triterpene acids, TA) on cisplatin-induced intestinal injury and explore the underlying mechanisms. MATERIALS AND METHODS: C57BL/6 mice were treated with Poria powder (PP), WP, AP and TA by oral gavage respectively for 13 days, and intraperitoneally injected with 10 mg/kg of cisplatin on day 10 to conduct a cisplatin-induced intestinal injury model. Pathological changes of ileum and colon were examined using H&E staining. The composition of gut microbiota and the alteration of host metabolites were characterized by 16S rDNA amplicon sequencing and UPLC-QTOF-MS/MS based untargeted metabolomics analysis. RESULTS: PP and WP attenuated the cisplatin-induced ileum and colon injury, and WP alleviated the weight loss and reversed the elevation of IL-2, IL-6 in serum. Both PP and WP could mitigate cisplatin-induced dysbiosis of gut microbiota, in particular PP and WP decreased the abundance of pathogenic bacteria including Proteobacteria, Cyanobacteria, Ruminococcaceae and Helicobacteraceae, while WP promoted the abundance of probiotics, such as Erysipelotrichaceae and Prevotellaceae. Moreover, WP attenuated the cisplatin-induced alteration of metabolic profiles. The levels of potential biomarkers, including xanthine, L-tyrosine, uridine, hypoxanthine, butyrylcarnitine, lysoPC (18:0), linoleic acid, (R)-3-hydroxybutyric acid, D-ribose, thiamine monophosphate, indolelactic acid and plamitic acid, showed significant correlations with intestinal flora. CONCLUSIONS: PP and WP possess protective effects against cisplatin-induced intestinal injury via potentially regulating the gut microbiota and metabolic profiles.


Assuntos
Enteropatias/prevenção & controle , Extratos Vegetais/farmacologia , Substâncias Protetoras/farmacologia , Wolfiporia/química , Álcalis/química , Animais , Biomarcadores Farmacológicos/análise , Peso Corporal/efeitos dos fármacos , Cisplatino/toxicidade , Citocinas/sangue , Modelos Animais de Doenças , Disbiose/induzido quimicamente , Disbiose/tratamento farmacológico , Microbioma Gastrointestinal/efeitos dos fármacos , Enteropatias/induzido quimicamente , Enteropatias/patologia , Masculino , Medicina Tradicional Chinesa , Metaboloma/efeitos dos fármacos , Camundongos Endogâmicos C57BL , Extratos Vegetais/administração & dosagem , Extratos Vegetais/química , Pós/administração & dosagem , Substâncias Protetoras/administração & dosagem , Substâncias Protetoras/química , Triterpenos/química , Água/química
20.
Food Chem ; 338: 127826, 2021 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-32810815

RESUMO

This study aimed to evaluate the mutagenicity and oral acute toxicity of winter mushroom powder (PW) treated by atmospheric non-thermal plasma (ANP). Winter mushroom powder without plasma treatment (CW) containing an equivalent amount of sodium nitrite as PW was used as a control. The Ames test revealed that the number of revertant colonies did not significantly increase compared to that in the control. Acute toxicity was assessed in rats that were fed a single dose of winter mushroom powder (5000 mg/kg body weight). Results of the acute toxicity test revealed no remarkable clinical symptoms in any of the rats. No significant difference was observed in of the serum biochemical parameters between the treatments. Regardless of the ANP treatment, mild histological changes were observed in few rats in all groups. Therefore, it is concluded that ANP treatment did not cause any mutagenicity or acute toxicity in the winter mushroom.


Assuntos
Flammulina/química , Indústria de Processamento de Alimentos/métodos , Pós/toxicidade , Administração Oral , Animais , Masculino , Testes de Mutagenicidade , Gases em Plasma , Pós/administração & dosagem , Pós/química , Ratos Sprague-Dawley , Testes de Toxicidade Aguda
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...