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1.
Front Immunol ; 14: 1147991, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37033914

RESUMEN

Commonly used clinical strategies against coronavirus disease 19 (COVID-19), including the potential role of monoclonal antibodies for site-specific targeted drug delivery, are discussed here. Solid lipid nanoparticles (SLN) tailored with tocilizumab (TCZ) and loading cannabidiol (CBD) are proposed for the treatment of COVID-19 by oral route. TCZ, as a humanized IgG1 monoclonal antibody and an interleukin-6 (IL-6) receptor agonist, can attenuate cytokine storm in patients infected with SARS-CoV-2. CBD (an anti-inflammatory cannabinoid and TCZ agonist) alleviates anxiety, schizophrenia, and depression. CBD, obtained from Cannabis sativa L., is known to modulate gene expression and inflammation and also shows anti-cancer and anti-inflammatory properties. It has also been recognized to modulate angiotensin-converting enzyme II (ACE2) expression in SARS-CoV-2 target tissues. It has already been proven that immunosuppressive drugs targeting the IL-6 receptor may ameliorate lethal inflammatory responses in COVID-19 patients. TCZ, as an immunosuppressive drug, is mainly used to treat rheumatoid arthritis, although several attempts have been made to use it in the active hyperinflammatory phase of COVID-19, with promising outcomes. TCZ is currently administered intravenously. It this review, we discuss the potential advances on the use of SLN for oral administration of TCZ-tailored CBD-loaded SLN, as an innovative platform for managing SARS-CoV-2 and related infections.


Asunto(s)
COVID-19 , Cannabidiol , Humanos , SARS-CoV-2 , Cannabidiol/uso terapéutico , Tratamiento Farmacológico de COVID-19 , Antiinflamatorios/uso terapéutico , Inmunosupresores
3.
Cureus ; 14(9): e28767, 2022 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-36211105

RESUMEN

Background The easy accessibility of smartphones and internet connections enables people to stay virtually connected to communities via social media. However, social media is also being explored for health care education and dissemination of health-related information. Twitter (Twitter, Inc., San Francisco, California) is one of the popular social media used for spreading health-related information. Twitter enables users to create polls to get opinions from their users. The Twitter poll is a less-explored avenue for health surveys. Objective In this pilot study, we aimed to explore the feasibility of conducting a questionnaire-based health survey (on the preference of different systems of medicine for the treatment of various health problems) as a Twitter poll. Methods This observational study was conducted on Twitter for five consecutive days starting from May 31, 2021. We posted five Twitter polls, one poll each day, for five days in a #INPST unique Twitter campaign. Preferences on the use of modern medicine, traditional medicine, a combination of these two systems, and self-medication were collected on five health conditions. We collected the data from the landing poll page and Tweet Analytics (insight about the engagement of tweets provided free by Twitter). The Chi-square test, binomial test, and one-way Analysis of Variance were used to compare data, and Spearman's rank correlation coefficient was used to find a correlation between categorical variables. Results We had a mean 4358.6±590.3 poll reach with the engagement of 108.2±36.87 Twitter users and 67.6±28.06 votes. Most of the responses were received on the first day of posting the poll. The participation then gradually decreased. Modern medicine was the first choice for emergency medical care (85.1%, P <0.0001), treatment of cancer (43.6%, P <0.0001), and sexual disorder or transmitted diseases (48.9%, P <0.0001). Traditional medicine was the first choice (37.5%, P = 0.63) for the treatment of common illnesses, and a combination of modern and traditional medicine was the first choice (37.5%, P = 0.01) for the treatment of chronic diseases. Conclusion A medical survey with short questions with a maximum of four response options can be conducted on Twitter. Survey results can be obtained without any third-party analytic service. The response rate is highest on the first day and participation may decrease when multiple polls are posted within a Twitter campaign. Preference for systems of medicine found in this study can be used for designing large-scale surveys in the future.

4.
Nutrients ; 14(11)2022 May 25.
Artículo en Inglés | MEDLINE | ID: mdl-35683996

RESUMEN

Coronavirus illness (COVID-19) is an infectious pathology generated by intense severe respiratory syndrome coronavirus 2 (SARS-CoV-2). This infectious disease has emerged in 2019. The COVID-19-associated pandemic has considerably affected the way of life and the economy in the world. It is consequently crucial to find solutions allowing remedying or alleviating the effects of this infectious disease. Natural products have been in perpetual application from immemorial time given that they are attested to be efficient towards several illnesses without major side effects. Various studies have shown that plant extracts or purified molecules have a promising inhibiting impact towards coronavirus. In addition, it is substantial to understand the characteristics, susceptibility and impact of diet on patients infected with COVID-19. In this review, we recapitulate the influence of extracts or pure molecules from medicinal plants on COVID-19. We approach the possibilities of plant treatment/co-treatment and feeding applied to COVID-19. We also show coronavirus susceptibility and complications associated with nutrient deficiencies and then discuss the major food groups efficient on COVID-19 pathogenesis. Then, we covered emerging technologies using plant-based SARS-CoV-2 vaccine. We conclude by giving nutrient and plants curative therapy recommendations which are of potential interest in the COVID-19 infection and could pave the way for pharmacological treatments or co-treatments of COVID-19.


Asunto(s)
COVID-19 , Antivirales/uso terapéutico , Vacunas contra la COVID-19 , Dieta , Humanos , Incidencia , Nutrientes , Estrés Oxidativo , SARS-CoV-2
5.
J Alzheimers Dis ; 88(1): 155-175, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35599481

RESUMEN

BACKGROUND: Alzheimer's disease (AD) is a complex neurodegenerative disease with multifactorial etiology, unsatisfactory treatment, and a necessity for broad-spectrum active substances for cure. The mucus from Helix aspersa snail is a mixture of bioactive molecules with antimicrobial, anti-inflammatory, antioxidant, and anti-apoptotic effects. So far there are no data concerning the capacity of snail extract (SE) to affect neurodegenerative disorders. OBJECTIVE: The effects of SE from Helix aspersa on learning and memory deficits in Alzheimer's type dementia (ATD) induced by scopolamine (Sco) in male Wistar rats were examined and some mechanisms of action underlying these effects were evaluated. METHODS: SE (0.5 mL/100 g) was applied orally through a food tube for 16 consecutive days: 5 days before and 11 days simultaneously with Sco (2 mg/kg, intraperitoneally). At the end of Sco treatment, using behavioral methods, we evaluated memory performance. Additionally, in cortex and hippocampus the acetylcholinesterase (AChE) activity, acetylcholine and monoamines (dopamine, noradrenaline, and serotonin) content, levels of main oxidative stress markers, and expression of brain-derived neurotrophic factor (BDNF) and cAMP response element-binding protein (CREB) were determined. RESULTS: We demonstrated that, according to all behavioral tests used, SE significantly improved the cognitive deficits induced by Sco. Furthermore, SE possessed AChE inhibitory activity, moderate antioxidant properties and the ability to modulate monoamines content in two brain structures. Moreover, multiple SE applications not only restored the depressed by Sco expression of CREB and BDNF, but significantly upregulated it. CONCLUSION: Summarizing results, we conclude that complex mechanisms underlie the beneficial effects of SE on impaired memory in Alzheimer's type dementia.


Asunto(s)
Enfermedad de Alzheimer , Enfermedades Neurodegenerativas , Acetilcolinesterasa/metabolismo , Enfermedad de Alzheimer/complicaciones , Enfermedad de Alzheimer/tratamiento farmacológico , Enfermedad de Alzheimer/metabolismo , Animales , Antioxidantes , Factor Neurotrófico Derivado del Encéfalo/metabolismo , Proteína de Unión a Elemento de Respuesta al AMP Cíclico/metabolismo , Hipocampo/metabolismo , Masculino , Trastornos de la Memoria/metabolismo , Modelos Teóricos , Enfermedades Neurodegenerativas/metabolismo , Extractos Vegetales/química , Extractos Vegetales/farmacología , Extractos Vegetales/uso terapéutico , Ratas , Ratas Wistar , Escopolamina/metabolismo
6.
Metabolites ; 12(4)2022 Mar 25.
Artículo en Inglés | MEDLINE | ID: mdl-35448474

RESUMEN

This study centered on detecting potentially anti-inflammatory active constituents in ethanolic extracts of Chinese Lonicera species by taking an UHPLC-HRMS-based metabolite profiling approach. Extracts from eight different Lonicera species were subjected to both UHPLC-HRMS analysis and to pharmacological testing in three different cellular inflammation-related assays. Compounds exhibiting high correlations in orthogonal projections to latent structures discriminant analysis (OPLS-DA) of pharmacological and MS data served as potentially activity-related candidates. Of these candidates, 65 were tentatively or unambiguously annotated. 7-Hydroxy-5,3',4',5'-tetramethoxyflavone and three bioflavonoids, as well as three C32- and one C34-acetylated polyhydroxy fatty acid, were isolated from Lonicera hypoglauca leaves for the first time, and their structures were fully or partially elucidated. Of the potentially active candidate compounds, 15 were subsequently subjected to pharmacological testing. Their activities could be experimentally verified in part, emphasizing the relevance of Lonicera species as a source of anti-inflammatory active constituents. However, some compounds also impaired the cell viability. Overall, the approach was found useful to narrow down the number of potentially bioactive constituents in the complex extracts investigated. In the future, the application of more refined concepts, such as extract prefractionation combined with bio-chemometrics, may help to further enhance the reliability of candidate selection.

7.
JMIR Med Educ ; 8(1): e32747, 2022 Feb 09.
Artículo en Inglés | MEDLINE | ID: mdl-35138260

RESUMEN

BACKGROUND: Digital teaching in medical education has grown in popularity in the recent years. However, to the best of our knowledge, no bibliometric report to date has been published that analyzes this important literature set to reveal prevailing topics and trends and their impacts reflected in citation counts. OBJECTIVE: We used a bibliometric approach to unveil and evaluate the scientific literature on digital teaching research in medical education, demonstrating recurring research topics, productive authors, research organizations, countries, and journals. We further aimed to discuss some of the topics and findings reported by specific highly cited works. METHODS: The Web of Science electronic database was searched to identify relevant papers on digital teaching research in medical education. Basic bibliographic data were obtained by the "Analyze" and "Create Citation Report" functions of the database. Complete bibliographic data were exported to VOSviewer for further analyses. Visualization maps were generated to display the recurring author keywords and terms mentioned in the titles and abstracts of the publications. RESULTS: The analysis was based on data from 3978 papers that were identified. The literature received worldwide contributions with the most productive countries being the United States and United Kingdom. Reviews were significantly more cited, but the citations between open access vs non-open access papers did not significantly differ. Some themes were cited more often, reflected by terms such as virtual reality, innovation, trial, effectiveness, and anatomy. Different aspects in medical education were experimented for digital teaching, such as gross anatomy education, histology, complementary medicine, medicinal chemistry, and basic life support. Some studies have shown that digital teaching could increase learning satisfaction, knowledge gain, and even cost-effectiveness. More studies were conducted on trainees than on undergraduate students. CONCLUSIONS: Digital teaching in medical education is expected to flourish in the future, especially during this era of COVID-19 pandemic.

8.
Crit Rev Food Sci Nutr ; 62(3): 832-859, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-33054344

RESUMEN

Rutin is one of the most common dietary polyphenols found in vegetables, fruits, and other plants. It is metabolized by the mammalian gut microbiota and absorbed from the intestines, and becomes bioavailable in the form of conjugated metabolites. Rutin exhibits a plethora of bioactive properties, making it an extremely promising phytochemical. Numerous studies demonstrate that rutin can act as a chemotherapeutic and chemopreventive agent, and its anticancer effects can be mediated through the suppression of cell proliferation, the induction of apoptosis or autophagy, and the hindering of angiogenesis and metastasis. Rutin has been found to modulate multiple molecular targets involved in carcinogenesis, such as cell cycle mediators, cellular kinases, inflammatory cytokines, transcription factors, drug transporters, and reactive oxygen species. This review summarizes the natural sources of rutin, its bioavailability, and in particular its potential use as an anticancer agent, with highlighting its anticancer mechanisms as well as molecular targets. Additionally, this review updates the anticancer potential of its analogs, nanoformulations, and metabolites, and discusses relevant safety issues. Overall, rutin is a promising natural dietary compound with promising anticancer potential and can be widely used in functional foods, dietary supplements, and pharmaceuticals for the prevention and management of cancer.


Asunto(s)
Antineoplásicos , Neoplasias , Animales , Antineoplásicos/uso terapéutico , Antioxidantes/uso terapéutico , Humanos , Neoplasias/tratamiento farmacológico , Neoplasias/prevención & control , Polifenoles/farmacología , Polifenoles/uso terapéutico , Rutina/uso terapéutico
9.
Pharmacol Res ; 175: 106001, 2022 01.
Artículo en Inglés | MEDLINE | ID: mdl-34826602

RESUMEN

The nutraceutical market is currently a high-impact multi-billion-dollar industry, and it is anticipated to grow rapidly over the next decade. Nutraceuticals comprise diverse food-derived product categories that have become widespread due to increased consumer awareness of potential health benefits and the need for improved wellness. This targeted review is designed to identify the current global trends, market opportunities, and regulations that drive the nutraceutical industry. Safety and efficacy concerns are also explored with a view to highlighting areas that necessitate further research and oversight. Key drivers of the nutraceutical market include aging populations, consumer awareness, consumer lifestyle, increasing cost of healthcare, and marketing channels. Although some nutraceuticals hold promising preventive and therapeutic opportunities, there is a lack of a universal definition and regulatory framework among countries. Moreover, there is a lack of adequate evidence for their efficacy, safety, and effectiveness, which was even further highlighted during the ongoing coronavirus pandemic. Future prospective epidemiological studies can delineate the health impact of nutraceuticals and help set the scientific basis and rationale foundation for clinical trials, reducing the time and cost of trials themselves. Together, an understanding of the key drivers of the nutraceutical market alongside a consistent and well-defined regulatory framework will provide further opportunities for growth, expansion, and segmentation of nutraceuticals applications.


Asunto(s)
Productos Biológicos/uso terapéutico , Suplementos Dietéticos , Industria Farmacéutica/tendencias , Industria de Alimentos/tendencias , Animales , Productos Biológicos/efectos adversos , Comercio , Seguridad de Productos para el Consumidor , Suplementos Dietéticos/efectos adversos , Aprobación de Drogas , Industria Farmacéutica/legislación & jurisprudencia , Industria de Alimentos/legislación & jurisprudencia , Humanos , Legislación Alimentaria/tendencias , Medición de Riesgo
10.
J Nat Prod ; 84(12): 3110-3116, 2021 12 24.
Artículo en Inglés | MEDLINE | ID: mdl-34902249

RESUMEN

The natural alkaloid evodiamine enhances cholesterol efflux from cultured THP-1-derived macrophages, but whether it has any impact on blood lipids in vivo remains unknown. In this study, the effect of evodiamine on hyperlipidemia induced by a high-fat diet (HFD) was investigated in mice. Intragastric administrations of evodiamine (10 and 20 mg/kg) for 8 weeks resulted in a significant improvement of metabolic lipid profiles by reducing the plasma levels of triglycerides (TG), total cholesterol (TC), and low-density lipoprotein cholesterol (LDL-C). Evodiamine also significantly decreased hepatic lipid accumulation and hepatic total bile acids (TBA). Mechanistically, evodiamine increased ATP-binding cassette transporter G1 (ABCG1) mRNA and protein expression and up-regulated peroxisome proliferator-activated receptor gamma (PPARγ) expression in the liver. Taken together, the natural product evodiamine lowers blood lipids in HFD-fed mice likely through promoting the PPARγ-ABCG1 signaling pathway.


Asunto(s)
Transportador de Casetes de Unión a ATP, Subfamilia G, Miembro 1/metabolismo , Dieta Alta en Grasa , Lípidos/sangre , PPAR gamma/metabolismo , Quinazolinas/farmacología , Animales , Ácidos y Sales Biliares/metabolismo , Peso Corporal/efectos de los fármacos , Hígado/efectos de los fármacos , Hígado/metabolismo , Ratones , Extractos Vegetales/farmacología
11.
Int J Mol Sci ; 22(23)2021 Nov 30.
Artículo en Inglés | MEDLINE | ID: mdl-34884795

RESUMEN

Compounds of natural origin, an infinite treasure of bioactive chemical entities, persist as an inexhaustible resource for discovering new medicines. In this review, we summarize the naturally occurring ellagitannins, sanguiins, which are bioactive constituents of various traditional medicinal plants, especially from the Rosaceae family. In-depth studies of sanguiin H-6 as an antimicrobial, antiviral, anticancer, anti-inflammatory, and osteoclastogenesis inhibitory agent have led to potent drug candidates. In addition, recently, virtual screening studies have suggested that sanguiin H-6 might increase resistance toward SARS-CoV-2 in the early stages of infection. Further experimental investigations on ADMET (absorption, distribution, metabolism, excretion, and toxicity) supplemented with molecular docking and molecular dynamics simulation are still needed to fully understand sanguiins' mechanism of action. In sum, sanguiins appear to be promising compounds for additional studies, especially for their application in therapies for a multitude of common and debilitating ailments.


Asunto(s)
Antivirales/química , Antivirales/farmacología , Taninos Hidrolizables/química , Taninos Hidrolizables/farmacología , Animales , Antifúngicos/química , Antifúngicos/farmacología , Antineoplásicos/química , Antineoplásicos/farmacología , Humanos , Simulación del Acoplamiento Molecular , Simulación de Dinámica Molecular , Farmacocinética , Rosaceae/química , SARS-CoV-2/efectos de los fármacos , Tratamiento Farmacológico de COVID-19
12.
Front Oncol ; 11: 697143, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34307163

RESUMEN

BACKGROUND: The banana (Musa spp.) plant produces elongated and edible fruit. The two main parthenocarpic species of banana are Musa accuminata Colla and Musa balbisiana Colla. There are several health-promoting and disease-preventing effects of Musa accuminata Colla, which are attributed to its important bioactive compounds, including phenolics, carotenoids, biogenic amines, phytosterols, and volatile oils, found in the stem, fruit, pseudostem, leaf, flower, sap, inner trunk, root, and inner core. Banana possesses numerous pharmacological activities, such as antioxidant, immunomodulatory, antimicrobial, antiulcerogenic, hypolipidemic, hypoglycemic, leishmanicidal, anthelmintic, and anticancer properties. Various individual studies have reported anticancer effects of different components of the banana plant. However, according to our understanding, an up-to-date, systematic, and critical analysis of existing scientific results has not yet been carried out. OBJECTIVES: This review aims to include a thorough assessment of banana and its phytochemicals for cancer prevention and therapy with a focus on cellular and molecular mechanisms of action. METHODS: The available research studies on anticancer activities of banana extracts, fractions and pure compounds were collected using various scholarly databases, such as PubMed, ScienceDirect, and Scopus, based on predetermined selection criteria. RESULTS: Various banana extracts, fractions, and phytoconstituents, including ferulic acid, protocatechualdehyde, 2-pentanone, 4-epicyclomusalenone, cycloeucalenol acetate, and chlorogenic acid, have been shown to exhibit cancer preventative and anticancer activities in breast, cervical, colorectal, esophageal, hepatic, oral, prostate, and skin cancers. Bioactive components present in bananas have exhibited antiproliferative, cell cycle arrest-inducing, apoptotic, anti-adhesive, anti-invasive, and antiangiogenic effects through modulation of diverse, dysregulated oncogenic signaling pathways. CONCLUSION: Based on the critical analysis of available literature, banana products and phytoconstituents show enormous potential for future development of drugs for cancer prevention and therapy. However, more mechanistic studies and well-designed clinical trials should be performed to establish its efficacy.

13.
Food Funct ; 12(5): 1897-1913, 2021 Mar 15.
Artículo en Inglés | MEDLINE | ID: mdl-33592084

RESUMEN

Ginger (Zingiber officinale Roscoe) is a common and widely used spice. It is rich in various chemical constituents, including phenolic compounds, terpenes, polysaccharides, lipids, organic acids, and raw fibers. Herein, we reviewed its effects on the vascular system. Studies utilizing cell cultures or animal models showed that ginger constituents alleviate oxidative stress and inflammation, increase nitric oxide synthesis, suppress vascular smooth muscle cell proliferation, promote cholesterol efflux from macrophages, inhibit angiogenesis, block voltage-dependent Ca2+ channels, and induce autophagy. In clinical trials, ginger was shown to have a favorable effect on serum lipids, inflammatory cytokines, blood pressure, and platelet aggregation. Taken together, these studies point to the potential benefits of ginger and its constituents in the treatment of hypertension, coronary artery disease, peripheral arterial diseases, and other vascular diseases.


Asunto(s)
Músculo Liso Vascular , Sustancias Protectoras , Zingiber officinale/química , Animales , Humanos , Lípidos/sangre , Ratones , Músculo Liso Vascular/citología , Músculo Liso Vascular/efectos de los fármacos , Miocitos del Músculo Liso/efectos de los fármacos , Miocitos del Músculo Liso/metabolismo , Estrés Oxidativo/efectos de los fármacos , Extractos Vegetales/química , Extractos Vegetales/farmacología , Sustancias Protectoras/química , Sustancias Protectoras/farmacología , Ratas , Transducción de Señal/efectos de los fármacos , Enfermedades Vasculares/metabolismo
14.
Curr Mol Pharmacol ; 14(6): 993-1002, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33319694

RESUMEN

BACKGROUND: Substances present in nature have been a continuous source for the development of drugs for cardiovascular and infectious diseases, cancer, and many other diseases. As the literature concerning these natural products grows, it becomes more difficult for a reader to quickly grasp the essential facts and develop a well-informed impression of this field of research. Until now, it has also been difficult to determine which natural products and research objectives were gaining the most attention as measured by a number of citations. OBJECTIVE: The current study of all published articles concerned with natural products sought to identify which natural products and which research objectives are connected with the major contributors to scientific journals based on the number of relevant publications and the number of times each publication was cited elsewhere. METHODS: Bibliometric data, including citation data, were extracted from the Web of Science database using the search string TS=("natural product*)" and analyzed by the VOSviewer software. RESULTS: The search yielded 63,194 articles, with more than half of the manuscripts published since 2012. The ratio of original articles to reviews was 5.8:1. The major contributing countries were the United States, China, Germany, Japan, and India. Articles were published mainly in journals focused on chemistry, pharmacology or biochemistry. Curcumin, resveratrol, and terpenoids were the most frequently cited natural products. CONCLUSION: The results of the current study provide researchers from different backgrounds and healthcare professionals with a brief overview of the major trends in natural-product research in the form of a citation-based summary of the relevant literature.


Asunto(s)
Productos Biológicos , Curcumina , Neoplasias , Bibliometría , Productos Biológicos/uso terapéutico , Curcumina/uso terapéutico , Humanos , Neoplasias/tratamiento farmacológico , Programas Informáticos , Estados Unidos
15.
Mini Rev Med Chem ; 21(2): 245-265, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33198616

RESUMEN

Metal nanoparticles are nanosized entities with dimensions of 1-100 nm that are increasingly in demand due to applications in diverse fields like electronics, sensing, environmental remediation, oil recovery and drug delivery. Metal nanoparticles possess large surface energy and properties different from bulk materials due to their small size, large surface area with free dangling bonds and higher reactivity. High cost and pernicious effects associated with the chemical and physical methods of nanoparticle synthesis are gradually paving the way for biological methods due to their eco-friendly nature. Considering the vast potentiality of microbes and plants as sources, biological synthesis can serve as a green technique for the synthesis of nanoparticles as an alternative to conventional methods. A number of reviews are available on green synthesis of nanoparticles but few have focused on covering the entire biological agents in this process. Therefore present paper describes the use of various living organisms like bacteria, fungi, algae, bryophytes and tracheophytes in the biological synthesis of metal nanoparticles, the mechanisms involved and the advantages associated therein.


Asunto(s)
Tecnología Química Verde , Nanopartículas del Metal/química , Bacterias/química , Bacterias/metabolismo , Chlorophyta/química , Chlorophyta/metabolismo , Hongos/química , Hongos/metabolismo , Extractos Vegetales/química , Plantas/química , Plantas/metabolismo
16.
Future Med Chem ; 12(19): 1779-1803, 2020 10.
Artículo en Inglés | MEDLINE | ID: mdl-33032465

RESUMEN

The natural tridecapeptide neurotensin has been emerged as a promising therapeutic scaffold for the treatment of neurological diseases and cancer. In this work, we aimed to identify the top 100 most cited original research papers as well as recent key studies related to neurotensins. The Web of Science Core Collection database was searched and the retrieved research articles were analyzed by using the VOSviewer software. The most cited original articles were published between 1973 and 2013. The top-cited article was by Carraway and Leeman reporting the discovery of neurotensin in 1973. The highly cited terms were associated with hypotension and angiotensin-converting-enzyme. The conducted analysis reveals the therapeutic potentials of neurotensin, and further impactful research toward its clinical development is warrantied.


Asunto(s)
Antineoplásicos/uso terapéutico , Fármacos del Sistema Nervioso Central/uso terapéutico , Neoplasias/tratamiento farmacológico , Enfermedades del Sistema Nervioso/tratamiento farmacológico , Neurotensina/uso terapéutico , Animales , Antineoplásicos/química , Fármacos del Sistema Nervioso Central/química , Humanos , Neurotensina/química
17.
Nutrients ; 12(9)2020 Aug 24.
Artículo en Inglés | MEDLINE | ID: mdl-32846876

RESUMEN

Fenugreek seeds are widely used in Asia and other places of the world for their nutritive and medicinal properties. In Asia, fenugreek seeds are also recommended for geriatric populations. Here, we evaluated for the first time the effect of fenugreek seed feed supplementation on the liver antioxidant defense systems in aging mice. The study was conducted on 12-months aged mice which were given fenugreek seed dietary supplement. We evaluated the activities of various antioxidant defense enzymes such as superoxide dismutase (SOD), glutathione reductase (GR), and glutathione peroxidase (GPx), and also estimated the phenolics and free radical scavenging properties in mice liver upon fenugreek supplementation. The estimation of SOD, GPx, and GR activities in aged mice liver revealed a significant (p < 0.01) difference among all the liver enzymes. Overall, this study reveals that fenugreek seed dietary supplementation has a positive effect on the activities of the hepatic antioxidant defense enzymes in the aged mice.


Asunto(s)
Antioxidantes/farmacología , Hígado/efectos de los fármacos , Hígado/metabolismo , Extractos Vegetales/farmacología , Envejecimiento , Animales , Suplementos Dietéticos , Glutatión Peroxidasa/efectos de los fármacos , Glutatión Peroxidasa/metabolismo , Glutatión Reductasa/efectos de los fármacos , Glutatión Reductasa/metabolismo , Masculino , Ratones , Modelos Animales , Superóxido Dismutasa/efectos de los fármacos , Superóxido Dismutasa/metabolismo , Trigonella
18.
Biomed Chromatogr ; 34(12): e4949, 2020 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-32678491

RESUMEN

Balanophora involucrata J. D. Hooker has been known to possess potential anti-inflammatory and antibacterial activities; however, its antiviral activity has not been evaluated so far. In order to find new neuraminidase inhibitors (NAIs), the neuraminidase (NA) inhibition activity of different B. involucrata extracts was evaluated. In this study, an in vitro NA inhibition assay was performed to identify which extract of B. involucrata exhibits (maximal) inhibitory activity against NA. Ultra high performance liquid chromatography/quadrupole time-of-flight-tandem mass spectroscopy (MS/MS) and molecular docking techniques were used to identify the specific compounds responsible for the anti-influenza activity of the extract, and to explore the potential natural NAIs. The ethyl acetate extract of B. involucrata exhibited significant inhibitory activity against NA with 50% inhibitory concentration (IC50 ) value of 159.5 µg/mL. Twenty compounds were identified according to the MS/MS spectra; among them two compounds (quercitrin and phloridzin) showed obvious inhibitory activity against NA, with IC50 of 311.76 and 347.32 µmol/L, respectively. This study suggested that B. involucrata can be a potential natural source of NAIs and may be useful in the fight against ferocious influenza viruses.


Asunto(s)
Balanophoraceae/química , Inhibidores Enzimáticos , Neuraminidasa/antagonistas & inhibidores , Extractos Vegetales/química , Cromatografía Líquida de Alta Presión , Inhibidores Enzimáticos/análisis , Inhibidores Enzimáticos/aislamiento & purificación , Inhibidores Enzimáticos/farmacología , Flavonoides/análisis , Flavonoides/aislamiento & purificación , Flavonoides/farmacología , Simulación del Acoplamiento Molecular , Espectrometría de Masas en Tándem
19.
Planta Med ; 86(15): 1097-1107, 2020 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-32485752

RESUMEN

The ligand-activated farnesoid X receptor is an emerging therapeutic target for the development of drugs against metabolic syndrome-related diseases. In this context, selective bile acid receptor modulators represent a novel concept for drug development. Selective bile acid receptor modulators act in a target gene- or tissue-specific way and are therefore considered less likely to elicit unwanted side effects. Based on leoligin, a lignan-type secondary plant metabolite from the alpine plant Leontopodium nivale ssp. alpinum, 168 synthesized structural analogs were screened in a farnesoid X receptor in silico pharmacophore-model. Fifty-six virtual hits were generated. These hits were tested in a cell-based farnesoid X receptor transactivation assay and yielded 7 farnesoid X receptor-activating compounds. The most active one being LT-141A, with an EC50 of 6 µM and an Emax of 4.1-fold. This analog did not activate the G protein-coupled bile acid receptor, TGR5, and the metabolic nuclear receptors retinoid X receptor α, liver X receptors α/ß, and peroxisome proliferator-activated receptors ß/γ. Investigation of different farnesoid X receptor target genes characterized LT-141A as selective bile acid receptor modulators. Functional studies revealed that LT-141A increased cholesterol efflux from THP-1-derived macrophages via enhanced ATP-binding cassette transporter 1 expression. Moreover, cholesterol uptake in differentiated Caco-2 cells was significantly decreased upon LT-141A treatment. In conclusion, the leoligin analog LT-141A selectively activates the nuclear receptor farnesoid X receptor and has an influence on cholesterol transport in 2 model systems.


Asunto(s)
Lignanos , Ácidos y Sales Biliares , Células CACO-2 , Colesterol , Humanos
20.
Int J Mol Sci ; 21(7)2020 Mar 26.
Artículo en Inglés | MEDLINE | ID: mdl-32225036

RESUMEN

Over the last few years, the application of nanotechnology to nutraceuticals has been rapidly growing due to its ability to enhance the bioavailability of the loaded active ingredients, resulting in improved therapeutic/nutraceutical outcomes. The focus of this work is nanoprebiotics and nanoprobiotics, terms which stand for the loading of a set of compounds (e.g., prebiotics, probiotics, and synbiotics) in nanoparticles that work as absorption enhancers in the gastrointestinal tract. In this manuscript, the main features of prebiotics and probiotics are highlighted, together with the discussion of emerging applications of nanotechnologies in their formulation. Current research strategies are also discussed, in particular the promising use of nanofibers for the delivery of probiotics. Synbiotic-based nanoparticles represent an innovative trend within this area of interest. As only few experimental studies on nanoprebiotics and nanoprobiotics are available in the scientific literature, research on this prominent field is needed, covering effectiveness, bioavailability, and safety aspects.


Asunto(s)
Suplementos Dietéticos , Nanotecnología/métodos , Prebióticos/administración & dosificación , Probióticos/administración & dosificación , Animales , Humanos , Absorción Intestinal , Nanopartículas/química , Probióticos/metabolismo , Probióticos/uso terapéutico
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