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1.
Molecules ; 28(20)2023 Oct 18.
Artigo em Inglês | MEDLINE | ID: mdl-37894629

RESUMO

Phytochemicals are plant secondary metabolites that show health benefits for humans due to their bioactivity. There is a huge variety of phytochemicals that have already been identified, and these compounds can act as antimicrobial and neuroprotection agents. Due to their anti-microbial activity and neuroprotection, several phytochemicals might have the potency to be used as natural therapeutic agents, especially for Helicobacter pylori infection and neurodegenerative disease, which have become a global health concern nowadays. According to previous research, there are some connections between H. pylori infection and neurodegenerative diseases, especially Alzheimer's disease. Hence, this comprehensive review examines different kinds of phytochemicals from natural sources as potential therapeutic agents to reduce H. pylori infection and improve neurodegenerative disease. An additional large-scale study is needed to establish the connection between H. pylori infection and neurodegenerative disease and how phytochemicals could improve this condition.


Assuntos
Infecções por Helicobacter , Helicobacter pylori , Doenças Neurodegenerativas , Fármacos Neuroprotetores , Humanos , Infecções por Helicobacter/tratamento farmacológico , Fármacos Neuroprotetores/farmacologia , Fármacos Neuroprotetores/uso terapêutico , Doenças Neurodegenerativas/tratamento farmacológico , Doenças Neurodegenerativas/prevenção & controle , Antibacterianos/farmacologia , Antibacterianos/uso terapêutico , Antibacterianos/química , Compostos Fitoquímicos/farmacologia , Compostos Fitoquímicos/uso terapêutico
2.
Crit Rev Food Sci Nutr ; : 1-20, 2022 Sep 19.
Artigo em Inglês | MEDLINE | ID: mdl-36123797

RESUMO

During the COVID-19 pandemic, the botanical product market saw a consumer interest increase in immune health supplements. While data are currently insufficient to support public health guidance for using foods and dietary supplements to prevent or treat COVID-19 and other immune disorders, consumer surveys indicate that immune support is the second-most cited reason for supplement use in the United States. Meanwhile, consumers showed increased attention to dietary supplement ingredient labels, especially concerning authenticity and ingredient claims. Top-selling botanical ingredients such as elderberry, turmeric, and functional mushrooms have been increasingly marketed toward consumers to promote immune health, but these popular products succumb to adulteration with inaccurate labeling due to the intentional or unintentional addition of lower grade ingredients, non-target plants, and synthetic compounds, partially due to pandemic-related supply chain issues. This review highlights the regulatory requirements and recommendations for analytical approaches, including chromatography, spectroscopy, and DNA approaches for ingredient claim verification. Demonstrating elderberry, turmeric, and functional mushrooms as examples, this review aims to provide industrial professionals and scientists an overview of current United States regulations, testing approaches, and trends for label compliance verification to ensure the safety of botanical products marketed for "immune health."

3.
Molecules ; 27(4)2022 Feb 11.
Artigo em Inglês | MEDLINE | ID: mdl-35209015

RESUMO

Electrolyzed water (EW) is a new type of cleaning and disinfecting agent obtained by means of electrolysis with a dilute sodium chloride solution. It has low cost and harm to the human body and is also friendly to the environment. The anode produces acidic electrolyzed water (AEW), which is mainly used to inhibit bacterial growth and disinfect. The cathode provides basic electrolyzed water (BEW), which is implemented to promote human health. EW is a powerful multifunctional antibacterial agent with a wide range of applications in the medicine, agriculture, and food industry. Studies in vitro and in vivo show that it has an inhibitory effect on pathogenic bacteria and viruses. Therefore, EW is used to prevent chronic diseases, while it has been found to be effective against various kinds of infectious viruses. Animal experiments and clinical trials clearly showed that it accelerates wound healing, and has positive effects in oral health care, anti-obesity, lowering blood sugar, anti-cancer and anti-infectious viral diseases. This review article summarizes the application of EW in treating bacteria and viruses, the prevention of chronic diseases, and health promotion.


Assuntos
Água/química , Água/farmacologia , Animais , Anti-Infecciosos/química , Anti-Infecciosos/farmacologia , Gerenciamento Clínico , Desinfetantes/química , Desinfetantes/farmacologia , Desinfecção , Eletrólise/métodos , Microbiologia de Alimentos , Humanos , Concentração de Íons de Hidrogênio , Microbiologia da Água
4.
Molecules ; 26(13)2021 Jun 25.
Artigo em Inglês | MEDLINE | ID: mdl-34202412

RESUMO

Functional plant-based foods (such as fruits, vegetables, and berries) can improve health, have a preventive effect, and diminish the risk of different chronic diseases during in vivo and in vitro studies. Berries contain many phytochemicals, fibers, vitamins, and minerals. The primary phytochemicals in berry fruits are phenolic compounds including flavonoids (anthocyanins, flavonols, flavones, flavanols, flavanones, and isoflavonoids), tannins, and phenolic acids. Since berries have a high concentration of polyphenols, it is possible to use them for treating various diseases pharmacologically by acting on oxidative stress and inflammation, which are often the leading causes of diabetes, neurological, cardiovascular diseases, and cancer. This review examines commonly consumed berries: blackberries, blackcurrants, blueberries, cranberries, raspberries, black raspberries, and strawberries and their polyphenols as potential medicinal foods (due to the presence of pharmacologically active compounds) in the treatment of diabetes, cardiovascular problems, and other diseases. Moreover, much attention is paid to the bioavailability of active berry components. Hence, this comprehensive review shows that berries and their bioactive compounds possess medicinal properties and have therapeutic potential. Nevertheless, future clinical trials are required to study and improve the bioavailability of berries' phenolic compounds and extend the evidence that the active compounds of berries can be used as medicinal foods against various diseases.


Assuntos
Frutas/química , Alimento Funcional/análise , Compostos Fitoquímicos/análise , Compostos Fitoquímicos/uso terapêutico , Humanos , Compostos Fitoquímicos/química
5.
Molecules ; 26(16)2021 Aug 19.
Artigo em Inglês | MEDLINE | ID: mdl-34443625

RESUMO

Black garlic (BG) is a form of aged garlic obtained from raw garlic (Allium sativum) via Millard reaction under high temperature (60-90 °C) and humidity (70-90%) for a period of time. Several studies reported higher contents of water-soluble antioxidants compounds (S-allyl cysteine, S-allyl-mercapto cysteine), 5-hydroxymethylfurfural, organosulfur compounds, polyphenol, volatile compounds, and products of other Millard reactions compared to fresh garlic after the thermal processing. Recent studies have demonstrated that BG and its bioactive compounds possess a wide range of biological activities and pharmacological properties that preserve and show better efficacy in preventing different types of diseases. Most of these benefits can be attributed to its anti-oxidation, anti-inflammation, anti-obesity, hepatoprotection, hypolipidemia, anti-cancer, anti-allergy, immunomodulation, nephroprotection, cardiovascular protection, and neuroprotection. Substantial studies have been conducted on BG and its components against different common human diseases in the last few decades. Still, a lot of research is ongoing to find out the therapeutic effects of BG. Thus, in this review, we summarized the pre-clinical and clinical studies of BG and its bioactive compounds on human health along with diverse bioactivity, a related mode of action, and also future challenges.


Assuntos
Doença , Alho/química , Saúde , Manipulação de Alimentos , Humanos
6.
Molecules ; 26(7)2021 Apr 06.
Artigo em Inglês | MEDLINE | ID: mdl-33917379

RESUMO

Polyphenols are classified as an organic chemical with phenolic units that display an array of biological functions. However, polyphenols have very low bioavailability and stability, which make polyphenols a less bioactive compound. Many researchers have indicated that several factors might affect the efficiency and the metabolism (biotransformation) of various polyphenols, which include the gut microbiota, structure, and physical properties as well as its interactions with other dietary nutrients (macromolecules). Hence, this mini-review covers the two-way interaction between polyphenols and gut microbiota (interplay) and how polyphenols are metabolized (biotransformation) to produce various polyphenolic metabolites. Moreover, the protective effects of numerous polyphenols and their metabolites against various gastrointestinal disorders/diseases including gastritis, gastric cancer, colorectal cancer, inflammatory bowel disease (IBD) like ulcerative colitis (UC), Crohn's disease (CD), and irritable bowel syndrome (IBS) like celiac disease (CED) are discussed. For this review, the authors chose only a few popular polyphenols (green tea polyphenol, curcumin, resveratrol, quercetin), and a discussion of their proposed mechanism underpinning the gastroprotection was elaborated with a special focus on clinical evidence. Overall, this contribution would help the general population and science community to identify a potent polyphenol with strong antioxidant, anti-inflammatory, anti-cancer, prebiotic, and immunomodulatory properties to combat various gut-related diseases or disorders (complementary therapy) along with modified lifestyle pattern and standard gastroprotective drugs. However, the data from clinical trials are much limited and hence many large-scale clinical trials should be performed (with different form/metabolites and dose) to confirm the gastroprotective activity of the above-mentioned polyphenols and their metabolites before recommendation.


Assuntos
Gastroenteropatias/tratamento farmacológico , Polifenóis/uso terapêutico , Substâncias Protetoras/uso terapêutico , Estômago/patologia , Animais , Gastroenteropatias/microbiologia , Gastroenteropatias/fisiopatologia , Microbioma Gastrointestinal/efeitos dos fármacos , Humanos , Metaboloma/efeitos dos fármacos , Polifenóis/química , Polifenóis/farmacologia , Estômago/efeitos dos fármacos
7.
Helicobacter ; 23(3): e12469, 2018 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-29520881

RESUMO

BACKGROUND: Burdock complex (BC) constitutes of burdock (Arctium lappa), angelica (Angelica sinensis), gromwell (Lithospermum erythrorhizon), and sesame (Sesamum indicum) oil, which are commonly used in traditional Chinese medicine (TCM) for treating various disorders. This study intended to examine the anti-H. pylori activity of BC on AGS cell model as well as in asymptomatic H. pylori-infected subjects. MATERIALS AND METHODS: AGS cell incubated with H. pylori and treated with BC to evaluate the minimum inhibition concentration (MIC), cell viability (MTT) anti-adhesion activity, and inflammatory markers. In case of clinical trial, H. pylori-positive subjects (urea breath test [UBT] >10%, n = 36) were enrolled and requested to intake BC (n = 19) or placebo (n = 17) for 8 weeks. Antioxidant capacity, total phenol, UBT, inflammatory markers were analyzed at the initial, 4th, 8th, and 10th weeks. Moreover, the endoscopic examination was carried out on baseline and 10th week. RESULTS: In vitro studies showed that BC treatment significantly inhibited (P < .05) the inflammatory markers and adhesion of H. pylori to AGS cell. However, H. pylori-infected subject ingested with BC for 8 weeks significantly decreased (P < .05) the UBT value, inflammatory markers with improved antioxidant activity, and phenolic levels as compared to placebo. Also, consumption of BC considerably healed the ulcer wound. CONCLUSION: Overall, the BC could attenuate H. pylori infection by inhibiting H. pylori adhesion and subsequent inflammatory response on the gastric epithelial cell (AGS) as well as clinically ameliorated UBT, antioxidant capacity, and alleviated inflammation to display its anti-H. pylori activity.


Assuntos
Anti-Inflamatórios/uso terapêutico , Medicamentos de Ervas Chinesas/uso terapêutico , Infecções por Helicobacter/tratamento farmacológico , Úlcera/tratamento farmacológico , Angelica sinensis/química , Anti-Inflamatórios/química , Anti-Inflamatórios/farmacologia , Arctium/química , Adesão Celular/efeitos dos fármacos , Linhagem Celular Tumoral , Sobrevivência Celular/efeitos dos fármacos , Método Duplo-Cego , Medicamentos de Ervas Chinesas/química , Medicamentos de Ervas Chinesas/farmacologia , Células Epiteliais/citologia , Células Epiteliais/imunologia , Mucosa Gástrica/metabolismo , Infecções por Helicobacter/microbiologia , Infecções por Helicobacter/patologia , Helicobacter pylori/efeitos dos fármacos , Humanos , Inflamação/tratamento farmacológico , Inflamação/imunologia , Lithospermum/química , Sesamum/química , Estômago/patologia , Resultado do Tratamento , Úlcera/microbiologia , Úlcera/patologia , Ureia/metabolismo
8.
Pharm Biol ; 55(1): 1041-1046, 2017 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-28183232

RESUMO

CONTEXT: Ganoderma lucidum (Leyss: Fr) Karst. (Polyporaceae) is an oriental medicinal fungus, commonly used in traditional Chinese medicine (TCM) for treating various condition or diseases such as hypertension, hyperglycaemia, hepatitis and cancer. OBJECTIVE: The current study examines whether triterpenoids and polysaccharide-enriched G. lucidum (GL) influence antioxidation and hepatoprotective efficacy by suppressing oxidative stress. MATERIALS AND METHODS: Forty-two healthy subjects (22 male and 20 female) were recruited and segregated into two groups as experimental or placebo and requested to intake GL (n = 21) or placebo (n = 21) capsule (225 mg; after lunch or dinner) for six consecutive months and vice versa with one month washout period in between. The anthropometric analysis and biochemical assays, as well as abdominal ultrasonic examination were performed. RESULTS: Consumption of GL substantially improved (p < 0.05) the total antioxidant capacity (TEAC; 79.33-84.04), total thiols and glutathione content (6-8.05) in plasma as well as significant (p < 0.05) enhanced the activities of antioxidant enzymes. Whereas, the levels of thiobarbituric acid reactive substances (TBARS; 3.37-2.47), 8-hydroxy-deoxy-guanosine (8-OH-dG; 15.99-11.98) and hepatic marker enzymes (glutamic-oxaloacetic transaminase; GOT and glutamic-pyruvic transaminase; GPT) were concomitantly reduced (42 and 27%) on treatment with GL. Furthermore, the abdominal ultrasonic examination in GL subjects displayed a notable alteration on hepatic condition by reversing from mild fatty liver condition (initial) to normal condition. DISCUSSION AND CONCLUSION: The outcome of the present intervention demonstrated the antioxidation, anti-aging and hepatoprotective nature of GL by effectively curbing oxidative stress.


Assuntos
Antioxidantes/farmacologia , Fígado/efeitos dos fármacos , Proteoglicanas/farmacologia , Reishi/química , Triterpenos/farmacologia , 8-Hidroxi-2'-Desoxiguanosina , Adulto , Estudos Cross-Over , Desoxiguanosina/análogos & derivados , Desoxiguanosina/análise , Método Duplo-Cego , Feminino , Voluntários Saudáveis , Humanos , Masculino , Pessoa de Meia-Idade , Estresse Oxidativo/efeitos dos fármacos , Substâncias Protetoras/farmacologia , Espécies Reativas de Oxigênio/metabolismo
9.
Pharm Biol ; 55(1): 974-979, 2017 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-28164731

RESUMO

CONTEXT: Prunus domestica Linn (Rosaceae) has been considered a functional food, owing to its various pharmacological activities, including antioxidant, anti-inflammatory, antidiabetic and anticancer. OBJECTIVE: This placebo-controlled, randomized study was framed to check the beneficial activity of prune essence concentrates (PEC) in corroboration with intestinal function and lipid profile in mildly hypercholesterolemic subjects. MATERIALS AND METHODS: Sixty healthy mild hypercholesterolemic subjects were randomly chosen and segregated into three groups as placebo (consume 50 mL of simulated prune drink), PEC I (consume 50 mL of PEC/day) and PEC II (consume 100 mL of PEC/day) for 4 weeks with 2 weeks of follow-up without PEC consumption. RESULTS: Intake of PEC (I and II) for 4 weeks substantially ameliorated (p < 0.05) the colony number of Bifidobacterium spp. (1.18- and 1.19-fold) and Lactobacillus spp. (1.07- and 1.16-fold), but markedly lowered (p < 0.05) the colony number of Clostridium perfringens (5.97 and 8.35%) and Escherichia coli (6.25 and 9.38%). Meanwhile, the total cholesterol (TC; 5.90 and 6.99%) levels and LDL-c (6.68 and 6.53%) were significantly reduced (p < 0.05), but no change in other lipid parameters. Whereas, the antioxidant capacity was also concomitantly elevated (p < 0.05) upon administration with PEC. DISCUSSION AND CONCLUSION: Overall, the results suggest that the use of PEC may positively regulate the intestinal microflora and thereby effectively lower the TC levels and thus act as a hypocholesterolemic agent.


Assuntos
Anticolesterolemiantes/uso terapêutico , LDL-Colesterol/sangue , Sucos de Frutas e Vegetais , Fármacos Gastrointestinais/uso terapêutico , Microbioma Gastrointestinal/efeitos dos fármacos , Hipercolesterolemia/tratamento farmacológico , Intestinos/efeitos dos fármacos , Extratos Vegetais/uso terapêutico , Prunus domestica/química , Adolescente , Adulto , Anticolesterolemiantes/isolamento & purificação , Antioxidantes/isolamento & purificação , Antioxidantes/uso terapêutico , Biomarcadores/sangue , Contagem de Colônia Microbiana , Regulação para Baixo , Fezes/microbiologia , Feminino , Fármacos Gastrointestinais/isolamento & purificação , Humanos , Hipercolesterolemia/sangue , Hipercolesterolemia/diagnóstico , Intestinos/microbiologia , Masculino , Pessoa de Meia-Idade , Estresse Oxidativo/efeitos dos fármacos , Fitoterapia , Extratos Vegetais/isolamento & purificação , Plantas Medicinais , Índice de Gravidade de Doença , Taiwan , Substâncias Reativas com Ácido Tiobarbitúrico/metabolismo , Fatores de Tempo , Resultado do Tratamento , Adulto Jovem
10.
Pharm Biol ; 55(1): 571-580, 2017 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-27937080

RESUMO

CONTEXT: Cranberry has numerous biological activities, including antioxidation, anticancer, cardioprotection, as well as treatment of urinary tract infection (UTI), attributed to abundant phenolic contents. OBJECTIVE: The current study focused on the effect of cranberry juice (CJ) on blue light exposed human retinal pigment epithelial (ARPE-19) cells which mimic age-related macular degeneration (AMD). MATERIALS AND METHODS: Preliminary phytochemical and HPLC analysis, as well as total antioxidant capacity and scavenging activity of cranberry ethyl acetate extract and different CJ fractions (condensed tannins containing fraction), were evaluated. In cell line model, ARPE-19 were irradiated with blue light at 450 nm wavelength for 10 h (mimic AMD) and treated with different fractions of CJ extract at different doses (5-50 µg/mL) by assessing the cell viability or proliferation rate using MTT assay (repairing efficacy). RESULTS: Phytochemical and HPLC analysis reveals the presence of several phenolic compounds (flavonoids, proanthocyanidin, quercetin) in ethyl acetate extract and different fractions of CJ. However, the condensed tannin containing fraction of ethyl acetate extract of CJ displayed the greater (p < 0.05) scavenging activity especially at the dose of 1 mg/mL. Similarly, the condensed tannin containing fraction at 50 µg/mL presented better (p < 0.05) repairing ability (increased cell viability). Furthermore, the oligomeric condensed tannin containing fraction display the best (p < 0.05) repairing efficiency at 50 µg/mL. DISCUSSION AND CONCLUSION: In conclusion, this study distinctly proved that condensed tannin containing fraction of CJ probably exhibits better free radicals scavenging activity and thereby effectively protected the ARPE-19 cells and thus, hampers the progress of AMD.


Assuntos
Antioxidantes/farmacologia , Sucos de Frutas e Vegetais , Luz/efeitos adversos , Extratos Vegetais/farmacologia , Epitélio Pigmentado da Retina/efeitos dos fármacos , Vaccinium macrocarpon/química , Antioxidantes/isolamento & purificação , Linhagem Celular , Proliferação de Células/efeitos dos fármacos , Sobrevivência Celular/efeitos dos fármacos , Cromatografia Líquida de Alta Pressão , Citoproteção , Relação Dose-Resposta a Droga , Estresse Oxidativo/efeitos dos fármacos , Fitoterapia , Extratos Vegetais/isolamento & purificação , Plantas Medicinais , Polifenóis/isolamento & purificação , Polifenóis/farmacologia , Proantocianidinas/isolamento & purificação , Proantocianidinas/farmacologia , Epitélio Pigmentado da Retina/patologia , Epitélio Pigmentado da Retina/efeitos da radiação
11.
Pharm Biol ; 55(1): 497-502, 2017 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-27937077

RESUMO

CONTEXT: Royal jelly (RJ) has been reported for its health promoting factors such as antioxidant, anti-inflammatory and lipid lowering activities. OBJECTIVE: The present randomized, placebo-controlled study examines the hypolipidemic beneficial effect of RJ through evaluating anthropometric measurements, lipid profile and various hormone levels in mildly hypercholesterolemic participants. MATERIALS AND METHODS: Forty subjects with mild hypercholesterolemia (180-200 mg/dL) were randomly selected and divided into two groups as experimental or placebo, who requested to intake nine capsules (350 mg/capsule) of RJ or placebo/day, respectively, for three months with one month of follow-up without any supplementation. RESULTS: No significant changes were noted in any of the anthropometric parameters like body weight, waist and body fat. The serum total cholesterol (TC; 207.05-183.15 mg/dL) and low-density lipoprotein cholesterol (LDL-c; 126.44-120.31 mg/dL) levels were reduced significantly (p < 0.05) after administration of RJ. However, triglyceride (TG) and high-density lipoprotein cholesterol (HDL-c) levels were not considerably altered. Moreover, three months of RJ consumption significantly ameliorated (p < 0.05) the concentration of sex hormones like dehydroepiandrosterone sulphate (DHEA-S; 1788.09-1992.31 ng/mL). Also, intake of RJ did not elicit any hepatic or renal damage. DISCUSSION AND CONCLUSION: Intervention with RJ for three months considerably lowered the TC and LDL-c levels through improving the levels of DHEA-S and thus alleviates the risk of cardiovascular disease (CVD).


Assuntos
Anticolesterolemiantes/uso terapêutico , LDL-Colesterol/sangue , Ácidos Graxos/uso terapêutico , Hipercolesterolemia/tratamento farmacológico , Biomarcadores/sangue , Doenças Cardiovasculares/etiologia , Doenças Cardiovasculares/prevenção & controle , HDL-Colesterol/sangue , Feminino , Hormônios Esteroides Gonadais/sangue , Humanos , Hipercolesterolemia/sangue , Hipercolesterolemia/complicações , Hipercolesterolemia/diagnóstico , Masculino , Fatores de Risco , Método Simples-Cego , Taiwan , Fatores de Tempo , Resultado do Tratamento , Triglicerídeos/sangue
12.
Phytother Res ; 30(3): 380-5, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26631904

RESUMO

The objective of this study was to evaluate the efficacy of the red wine extract of onion (RO) and red wine (RW) on alleviating the risk factors of cardiovascular disease. During in vitro studies, various antioxidant activities [trolox equivalent antioxidant capacity (TEAC), DPPH, and H2 O2 scavenging ability] of RO and RW group were evaluated. Both RO and RW showed the maximum antioxidant capacity. During in vivo studies, 23 healthy hypercholesterolemic volunteers were randomly selected and assigned into two groups, who drunk 250 mL of RO (n = 11) or RW (n = 10) for 10 weeks. No significant changes were observed in anthropometric parameters (body weight, height, body mass, and BMI) in each group. Both RW and RO extracts elevated (p < 0.05) antioxidant activity and thereby prolonging the lag time of low-density lipoprotein oxidation. However, RO extract intake substantially suppressed (p < 0.05) the total cholesterol and low-density lipoprotein cholesterol levels when equivalence with RW thus, indicating its additional hypocholesterolemic effect. The inflammatory markers such as factor VII were also positively modulated by RO extract. Results indicated that RO extract consumption rendered better cardio protective effect than RW by altering cholesterol, improving antioxidation and suppressing inflammatory marker levels and thereby, attenuating the cardiovascular disease incidence.


Assuntos
Antioxidantes/uso terapêutico , Colesterol/sangue , Hipercolesterolemia/tratamento farmacológico , Lipoproteínas LDL/sangue , Cebolas/química , Fitoterapia , Vinho , Anticolesterolemiantes/farmacologia , Anticolesterolemiantes/uso terapêutico , Antioxidantes/farmacologia , Biomarcadores/sangue , Doenças Cardiovasculares/sangue , Doenças Cardiovasculares/etiologia , Doenças Cardiovasculares/prevenção & controle , Feminino , Voluntários Saudáveis , Humanos , Hipercolesterolemia/sangue , Masculino , Oxirredução , Extratos Vegetais/farmacologia , Extratos Vegetais/uso terapêutico , Fatores de Risco
13.
Plant Foods Hum Nutr ; 70(4): 395-400, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26385226

RESUMO

Onion (Allium cepa L.) is widely employed as a food ingredient as well as traditional remedy to treat fever, burns, and scurvy. The present study focused on the modulator efficacy of the quercetin rich onion juice on lipid profile and antioxidant status in mildly hypercholesterolemic subjects. Twenty-four healthy subjects with mild hypercholesterolemia (≧ 200 mg/dL) were recruited and divided into two groups, and they consumed 100 mL of onion juice or placebo every day for 8 weeks. Fasting blood samples were collected at initial, 2nd, 6th, 8th, 10th week for estimating various biochemical assays, as well as anthropometric indices. After 8 weeks of intervention, onion juice greatly decreased (p < 0.05) waist circumference, total cholesterol and LDL-c. In addition, it elevates (p < 0.05) total antioxidation capacity and prolong lag-time of LDL oxidation were also noted. To conclude, drinking onion juice could markedly suppress cholesterol level and elevate total antioxidation capacity. Hence, onion juice was probably recommended for combating various cardiovascular diseases.


Assuntos
Hipercolesterolemia/tratamento farmacológico , Cebolas/química , Quercetina/administração & dosagem , Adulto , Anticolesterolemiantes , Antioxidantes/análise , Colesterol/sangue , LDL-Colesterol/sangue , Feminino , Humanos , Lipídeos/sangue , Masculino , Pessoa de Meia-Idade , Oxirredução , Fitoterapia , Projetos Piloto , Placebos , Extratos Vegetais/química , Taiwan , Circunferência da Cintura/efeitos dos fármacos
14.
J Am Nutr Assoc ; 43(6): 505-518, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38393321

RESUMO

Ocular health has emerged as one of the major issues of global health concern with a decline in quality of life in an aging population, in particular and rise in the number of associated morbidities and mortalities. One of the chief reasons for vision impairment is oxidative damage inflicted to photoreceptors in rods and cone cells by blue light as well as UV radiation. The scenario has been aggravated by unprecedented rise in screen-time during the COVID and post-COVID era. Lutein and Zeaxanthin are oxygenated carotenoids with proven roles in augmentation of ocular health largely by virtue of their antioxidant properties and protective effects against photobleaching of retinal pigments, age-linked macular degeneration, cataract, and retinitis pigmentosa. These molecules are characterized by their characteristic yellow-orange colored pigmentation and are found in significant amounts in vegetables such as corn, spinach, broccoli, carrots as well as fish and eggs. Unique structural signatures including tetraterpenoid skeleton with extensive conjugation and the presence of hydroxyl groups at the end rings have made these molecules evolutionarily adapted to localize in the membrane of the photoreceptor cells and prevent their free radical induced peroxidation. Apart from the benefits imparted to ocular health, lutein and zeaxanthin are also known to improve cognitive function, cardiovascular physiology, and arrest the development of malignancy. Although abundant in many natural sources, bioavailability of these compounds is low owing to their long aliphatic backbones. Under the circumstances, there has been a concerted effort to develop vegetable oil-based carriers such as lipid nano-emulsions for therapeutic administration of carotenoids. This review presents a comprehensive update of the therapeutic potential of the carotenoids along with the challenges in achieving an optimized delivery tool for maximizing their effectiveness inside the body.


Lutein and zeaxanthin are the two most abundant natural xanthophylls (oxygenated carotenoids) with a linear C40 tetraterpene/isoprenoid lycopene-based backbone.Presence of extensive conjugation (more than 10 double bonds) enable these molecules to act as accessory light harvesting pigments apart from chlorophyll.More importantly, the xanthophylls prevent photobleaching of the pigments and proteins in the Light Harvesting Complex (LHC) by sequestering the excess unutilized blue light and preventing triplet chlorophyll associated formation of Reactive Oxygen Species.In human eye, lutein, zeaxanthin along with mesozeaxanthin constitute the three macular pigments forming the so called "yellow spot" of the macula and are implicated in maintaining the redox balance, homeostasis and normal physiology of the eyes.However, unlike plants, xanthophylls must be acquired from dietary sources such as colored leafy vegetables and egg yolk.Increase in the number of eye diseases in the aging population coupled with insufficient bioavailability of xanthophylls has mandated the industrial production of supplements enriched in xanthophylls.The bioavailability and delivery of xanthophylls can be significantly enhanced by suspension in a blend of extra-virgin olive oil and other vegetable oils.


Assuntos
Luteína , Zeaxantinas , Humanos , Zeaxantinas/metabolismo , Luteína/farmacologia , Luteína/metabolismo , COVID-19/prevenção & controle , Antioxidantes/farmacologia , Degeneração Macular/metabolismo , Degeneração Macular/prevenção & controle , Pigmento Macular/metabolismo
15.
NPJ Sci Food ; 8(1): 19, 2024 Mar 30.
Artigo em Inglês | MEDLINE | ID: mdl-38555403

RESUMO

SARS-CoV-2, the etiological agent of COVID-19, is devoid of any metabolic capacity; therefore, it is critical for the viral pathogen to hijack host cellular metabolic machinery for its replication and propagation. This single-stranded RNA virus with a 29.9 kb genome encodes 14 open reading frames (ORFs) and initiates a plethora of virus-host protein-protein interactions in the human body. These extensive viral protein interactions with host-specific cellular targets could trigger severe human metabolic reprogramming/dysregulation (HMRD), a rewiring of sugar-, amino acid-, lipid-, and nucleotide-metabolism(s), as well as altered or impaired bioenergetics, immune dysfunction, and redox imbalance in the body. In the infectious process, the viral pathogen hijacks two major human receptors, angiotensin-converting enzyme (ACE)-2 and/or neuropilin (NRP)-1, for initial adhesion to cell surface; then utilizes two major host proteases, TMPRSS2 and/or furin, to gain cellular entry; and finally employs an endosomal enzyme, cathepsin L (CTSL) for fusogenic release of its viral genome. The virus-induced HMRD results in 5 possible infectious outcomes: asymptomatic, mild, moderate, severe to fatal episodes; while the symptomatic acute COVID-19 condition could manifest into 3 clinical phases: (i) hypoxia and hypoxemia (Warburg effect), (ii) hyperferritinemia ('cytokine storm'), and (iii) thrombocytosis (coagulopathy). The mean incubation period for COVID-19 onset was estimated to be 5.1 days, and most cases develop symptoms after 14 days. The mean viral clearance times were 24, 30, and 39 days for acute, severe, and ICU-admitted COVID-19 patients, respectively. However, about 25-70% of virus-free COVID-19 survivors continue to sustain virus-induced HMRD and exhibit a wide range of symptoms that are persistent, exacerbated, or new 'onset' clinical incidents, collectively termed as post-acute sequelae of COVID-19 (PASC) or long COVID. PASC patients experience several debilitating clinical condition(s) with >200 different and overlapping symptoms that may last for weeks to months. Chronic PASC is a cumulative outcome of at least 10 different HMRD-related pathophysiological mechanisms involving both virus-derived virulence factors and a multitude of innate host responses. Based on HMRD and virus-free clinical impairments of different human organs/systems, PASC patients can be categorized into 4 different clusters or sub-phenotypes: sub-phenotype-1 (33.8%) with cardiac and renal manifestations; sub-phenotype-2 (32.8%) with respiratory, sleep and anxiety disorders; sub-phenotype-3 (23.4%) with skeleto-muscular and nervous disorders; and sub-phenotype-4 (10.1%) with digestive and pulmonary dysfunctions. This narrative review elucidates the effects of viral hijack on host cellular machinery during SARS-CoV-2 infection, ensuing detrimental effect(s) of virus-induced HMRD on human metabolism, consequential symptomatic clinical implications, and damage to multiple organ systems; as well as chronic pathophysiological sequelae in virus-free PASC patients. We have also provided a few evidence-based, human randomized controlled trial (RCT)-tested, precision nutrients to reset HMRD for health recovery of PASC patients.

16.
Phytother Res ; 27(3): 368-73, 2013 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22610748

RESUMO

This was a randomized, parallel, and placebo-controlled study. Forty subjects were divided into a test group and a placebo group. The study was focused on the potential effects of a mixture of Schisandra fruit extract and sesamin (hereinafter called 'SCH') in the subjects with borderline high levels (40-60 U/L) of alanine aminotransferase (ALT) or aspartate aminotransferase (AST). Twenty subjects taking SCH (four tablets per day) and 20 subjects taking a placebo (four tablets per day) were studied. The effects of SCH on ALT, AST, total bilirubin, direct bilirubin, free radical levels, total antioxidant status, glutathione peroxidase, glutathione reductase, and the lag time for low-density lipoprotein oxidation were determined. The total test period was 5 months. Intervention of SCH clearly reduced the levels of ALT and AST, but it made no change in the total bilirubin and direct bilirubin. Intake of SCH also greatly increased the antioxidant capacity and decreased the values of thiobarbituric acid reactive substances, total free radicals, and superoxide anion radicals in the plasma. The activities of glutathione peroxidase and reductase in the erythrocytes were significantly increased. In addition, the lag time for low-density lipoprotein oxidation, an inflammatory marker, was evidently increased. Fatty liver was found to have been significantly improved in this study. SCH proved to have the effects of antioxidation and improving liver function.


Assuntos
Antioxidantes/farmacologia , Dioxóis/farmacologia , Lignanas/farmacologia , Fígado/efeitos dos fármacos , Extratos Vegetais/farmacologia , Schisandra/química , Adulto , Idoso , Alanina Transaminase/metabolismo , Aspartato Aminotransferases/metabolismo , Bilirrubina/análise , Feminino , Frutas/química , Glutationa Peroxidase/sangue , Glutationa Redutase/sangue , Humanos , Fígado/fisiopatologia , Testes de Função Hepática , Masculino , Pessoa de Meia-Idade , Estresse Oxidativo/efeitos dos fármacos , Superóxidos/sangue , Substâncias Reativas com Ácido Tiobarbitúrico/análise , Adulto Jovem
17.
J Clin Med ; 12(7)2023 Apr 06.
Artigo em Inglês | MEDLINE | ID: mdl-37048833

RESUMO

The efficacy of current pharmaceutical treatments for fibromyalgia are limited. Vitamin D has shown promise in relieving pain. However, there is a lack of comprehensive analysis of psychological outcomes with vitamin D supplementation in fibromyalgia. This study aimed to investigate the impact of vitamin D supplementation on psychological outcomes and quality of life in fibromyalgia patients, given the unmet clinical need for effective treatment options. A meta-analysis of randomized controlled trials comparing vitamin D to placebo and prospective studies examining changes before and after vitamin D supplementation for patients with fibromyalgia was conducted to evaluate the effects of vitamin D on psychological outcomes, quality of life, and pain scores in patients with fibromyalgia. Databases were searched for relevant articles published from earliest available date to October 31, 2022. (PROSPERO number, CRD42022369889). We included 8 trials with a total of 694 participants and found that vitamin D supplementation had significant positive effects on physical function (standard mean differences (SMD) = 0.44, 95% CI = [0.10, 0.77 ]), role limitations due to emotional health (SMD = 0.57, 95% CI = [0.32, 0.82]), social function (SMD = 0.50, 95% CI = [0.08, 0.93]), and general health (SMD = 0.36, 95% CI = [0.11, 0.61]). Improvement of the Fibromyalgia Impact Questionnaire (FIQ) scores was noted (SMD = -0.414, 95% CI = [-0.808, -0.021]), but not on the Visual Analog Scale (VAS) (SMD = -0.15, 95% CI = [-0.771, 0.471]) and the Beck's Depression Inventory (BDI) scores (SMD = -0.456, 95% CI = [-1.27, 0.30]). In conclusion, vitamin D supplementation might be an alternative option for improvement of psychological outcomes and quality of life in patients with fibromyalgia.

18.
J Food Biochem ; 46(10): e14287, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-35758855

RESUMO

Roselle (Hibiscus sabdariffa L.) is an increasingly attractive plant for its health and pharmaceutical, beverage, and cosmetic applications. The purpose of this study was to investigate the clinical effects of roselle drink on antioxidant activity, blood pressure, and skin condition. Roselle drink used in this study contained rich phenolics (1.96 g of gallic acid equivalent/100 ml) and anthocyanins (1.65 g of cyanidin-3-glucoside equivalent/100 ml). In a randomized, cross-over, double-blind, placebo-controlled clinical study, 39 healthy adults received drank 200 ml of roselle drink or placebo-control drink for 6 months. A significant reduction in the blood pressure was observed in the roselle drink treated group when compared with preintervention values. After 6 months of treatment with roselle drink, serum phenolics contents, the levels of Trolox equivalent antioxidant capacity (TEAC), glutathione, superoxide dismutase (SOD), glucose-6-phosphate dehydrogenase (G-6-PDH), glutathione peroxidase (GSH-Px), and glutathione reductase (GSH-Rd) were significantly increased in healthy subjects. However, a significant increment in skin redness and skin moisture was observed in the facial skin of roselle drink-treated participants. Oral administration of roselle drink for 6 months significantly lowered the blood pressure, improved antioxidation level, and positively regulated skin redness as well as moisture. Phenolics and anthocyanins in roselle could be the major potential contributors to such health effects. PRACTICAL APPLICATIONS: Roselle is a typical plant. Continuous administration of roselle drink clearly improved antioxidation levels, reduced blood pressure and positively regulated skin redness and moisture. Phenloics and anthocyanins in roselle could be the major potentila contributors of such health benefits.


Assuntos
Hibiscus , Antocianinas/farmacologia , Antioxidantes/farmacologia , Pressão Sanguínea , Ácido Gálico , Glucosefosfato Desidrogenase , Glutationa , Glutationa Peroxidase , Glutationa Redutase , Humanos , Fenóis/farmacologia , Extratos Vegetais/farmacologia , Superóxido Dismutase
19.
Food Funct ; 13(11): 5987-5995, 2022 Jun 06.
Artigo em Inglês | MEDLINE | ID: mdl-35551341

RESUMO

Although RD43 rice is characterized by high amounts of undigestible starch, its potential health benefits for prediabetic individuals remain unknown. Thus, the effect of regular consumption of RD43 rice on the glycemic response, body composition, and metabolic markers was investigated in a sample of 34 participants with prediabetes (aged from 32 to 68 years) who were randomly allocated to either the treatment or the control group. The first were required to consume RD43 rice (Glycemic Index [GI] = 78) containing 14.1 g of undigestible starch daily as a substitute for two meals per day while the second were given the Taiken9 rice (GI = 98) for 12 continuous weeks. The evaluations were performed at baseline, at the end of week 6 and 12, and at follow-up conducted two weeks after the intervention had ended. The results obtained at the week 12 assessment clearly showed a significant decrease in fasting plasma glucose, insulin, HbA1c, and HOMA-IR in the group that consumed RD43 rice. In addition, daily ingestion of RD43 rice markedly reduced body weight, Body Mass Index (BMI), total fat mass, and waist circumference at both week 6 and 12 compared with the baseline. When compared with the controls, the treatment group also exhibited a significant decrease in fasting plasma insulin and HOMA-IR at week 12. However, no significant inter- or intra-group differences in lipid profiles were detected. These findings suggest that RD43 rice could be a potential staple food with the capacity to improve glycemic control and body composition in prediabetic individuals.


Assuntos
Resistência à Insulina , Oryza , Estado Pré-Diabético , Glicemia/metabolismo , Índice de Massa Corporal , Dieta , Humanos , Insulina/metabolismo , Oryza/metabolismo , Amido/metabolismo
20.
Food Funct ; 12(17): 7975-7985, 2021 Sep 07.
Artigo em Inglês | MEDLINE | ID: mdl-34259302

RESUMO

The aim of this study was to develop wheat noodles substituted with 10-40% RD43 rice flour. Starch digestibility and physicochemical and sensory properties of RD43 rice noodles and its effect on glycemic response, gut hormones, and appetite sensation in humans were also determined. The results demonstrated that the substitution of 10-40% RD43 rice flour reduced starch digestibility, the hydrolysis index, and rapidly digestible starch (RDS), while increasing undigestible starch in noodles. Noodles prepared with 30% RD43 rice flour slightly increased water absorption (WA), and the swelling index (SI) without altering cooking loss. When compared with the control, 30% RD43 rice showed higher lightness (L*) and lower redness (a*), yellowness (b*) and hardness with similar overall acceptability. In human studies, ingestion of 30% RD43 rice noodles significantly lowered postprandial plasma glucose at 15-90 min. Interestingly, the postprandial concentration of glucagon-like peptide-1 (GLP-1) and peptide tyrosine-tyrosine (PYY) also significantly increased at 30 min after the intake of 30% RD43 rice noodles. A significantly lower desire to eat and higher fullness were detected after 30% RD43 rice noodle consumption until 120 min. This suggests that RD43 rice flour could be a potential ingredient in noodles for controlling the glycemic response, short-acting satiety hormones, and appetite sensation.


Assuntos
Glicemia/metabolismo , Peptídeo 1 Semelhante ao Glucagon/sangue , Oryza/metabolismo , Peptídeo YY/sangue , Amido/metabolismo , Adulto , Apetite , Digestão , Feminino , Farinha/análise , Manipulação de Alimentos , Qualidade dos Alimentos , Humanos , Masculino , Oryza/química , Resposta de Saciedade , Adulto Jovem
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