Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 13 de 13
Filtrar
1.
Phytomedicine ; 108: 154520, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-36334386

RESUMEN

BACKGROUND: The development of digital technologies and the evolution of open innovation approaches have enabled the creation of diverse virtual organizations and enterprises coordinating their activities primarily online. The open innovation platform titled "International Natural Product Sciences Taskforce" (INPST) was established in 2018, to bring together in collaborative environment individuals and organizations interested in natural product scientific research, and to empower their interactions by using digital communication tools. METHODS: In this work, we present a general overview of INPST activities and showcase the specific use of Twitter as a powerful networking tool that was used to host a one-week "2021 INPST Twitter Networking Event" (spanning from 31st May 2021 to 6th June 2021) based on the application of the Twitter hashtag #INPST. RESULTS AND CONCLUSION: The use of this hashtag during the networking event period was analyzed with Symplur Signals (https://www.symplur.com/), revealing a total of 6,036 tweets, shared by 686 users, which generated a total of 65,004,773 impressions (views of the respective tweets). This networking event's achieved high visibility and participation rate showcases a convincing example of how this social media platform can be used as a highly effective tool to host virtual Twitter-based international biomedical research events.


Asunto(s)
Productos Biológicos , Medios de Comunicación Sociales , Humanos
3.
Front Pharmacol ; 13: 987088, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36386196

RESUMEN

Ovarian cancer, and particularly its most frequent type, epithelial ovarian carcinoma, constitutes one of the most dangerous malignant tumors among females. Substantial evidence has described the potential of phytochemicals against ovarian cancer. The effect of natural compounds on endoplasmic reticulum (ER) stress is of great relevance in this regard. In ovarian cancer, the accumulation of misfolded proteins in the ER lumen results in decompensated ER stress. This leads to deregulation in the physiological processes for the posttranslational modification of proteins, jeopardizes cellular homeostasis, and increases apoptotic signaling. Several metabolites and metabolite extracts of phytochemical origin have been studied in the context of ER stress in ovarian cancer. Resveratrol, quercetin, curcumin, fucosterol, cleistopholine, fucoidan, and epicatechin gallate, among others, have shown inhibitory potential against ER stress. The chemical structure of each compound plays an important role concerning its pharmacodynamics, pharmacokinetics, and overall effectiveness. Studying and cross-comparing the chemical features that render different phytochemicals effective in eliciting particular anti-ER stress actions can help improve drug design or develop multipotent combination regimens. Many studies have also investigated the properties of formulations such as nanoparticles, niosomes, liposomes, and intravenous hydrogel based on curcumin and quercetin along with some other phytomolecules in ovarian cancer. Overall, the potential of phytochemicals in targeting genetic mechanisms of ovarian cancer warrants further translational and clinical investigation.

4.
Wiad Lek ; 75(8 pt 1): 1920-1923, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36089880

RESUMEN

OBJECTIVE: The aim: To presents clinical, epidemiological and pathophysiological aspects of the disease described by Galenos of Pergamon during the 2nd century AD and discusses its implications on contemporary discourse on gender equity and gender - based discrimination. PATIENTS AND METHODS: Materials and methods: The authors searched original medical texts written in Greek language and attributed to Galenos for records related to hysterical apnea. CONCLUSION: Conclusions: Galen attempted to interpret hysterical apnea by combining clinical and epidemiological observations with anatomical and functional lesions. His approach denounced the anatomically unsound notion of the wandering womb and availed the knowledge of his period in a rational manner. Investigating gender - related aspects of contemporary psychosomatic conditions related to fertility and pregnancy can help address gender - based discrimination in modern societies.


Asunto(s)
Medicina Psicosomática , Apnea , Equidad de Género , Humanos , Trastornos Psicofisiológicos , Escritura
5.
Surg Innov ; 29(5): 681-683, 2022 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-35920137

RESUMEN

Headache is a prevalent clinical symptom and condition, whose management has been challenging from the antiquity to the 21st century. Physicians in the Greek, Roman and Byzantine antiquity employed surgical techniques to treat headache in patients presenting with persistent symptoms that were not alleviated with conservative means. A survey in the medical literature of the period reveals that two surgical procedures, periscyphismus and section of the temporal vessels, were developed for this purpose. The present study describes the techniques presented in the sources of the period and elaborates on their evolution and influence across different historical periods and contexts.


Asunto(s)
Cefalea , Médicos , Humanos , Historia Antigua , Médicos/historia , Encuestas y Cuestionarios , Grecia
6.
Crit Rev Food Sci Nutr ; : 1-45, 2022 Jul 15.
Artículo en Inglés | MEDLINE | ID: mdl-35838143

RESUMEN

Breast cancer (BC) is the most prevalent neoplasm among women. Genetic and environmental factors lead to BC development and on this basis, several preventive - screening and therapeutic interventions have been developed. Hormones, both in the form of endogenous hormonal signaling or hormonal contraceptives, play an important role in BC pathogenesis and progression. On top of these, breast microbiota includes both species with an immunomodulatory activity enhancing the host's response against cancer cells and species producing proinflammatory cytokines associated with BC development. Identification of novel multitargeted therapeutic agents with poly-pharmacological potential is a dire need to combat advanced and metastatic BC. A growing body of research has emphasized the potential of natural compounds derived from medicinal plants and microbial species as complementary BC treatment regimens, including dietary supplements and probiotics. In particular, extracts from plants such as Artemisia monosperma Delile, Origanum dayi Post, Urtica membranacea Poir. ex Savigny, Krameria lappacea (Dombey) Burdet & B.B. Simpson and metabolites extracted from microbes such as Deinococcus radiodurans and Streptomycetes strains as well as probiotics like Bacillus coagulans and Lactobacillus brevis MK05 have exhibited antitumor effects in the form of antiproliferative and cytotoxic activity, increase in tumors' chemosensitivity, antioxidant activity and modulation of BC - associated molecular pathways. Further, bioactive compounds like 3,3'-diindolylmethane, epigallocatechin gallate, genistein, rutin, resveratrol, lycopene, sulforaphane, silibinin, rosmarinic acid, and shikonin are of special interest for the researchers and clinicians because these natural agents have multimodal action and act via multiple ways in managing the BC and most of these agents are regularly available in our food and fruit diets. Evidence from clinical trials suggests that such products had major potential in enhancing the effectiveness of conventional antitumor agents and decreasing their side effects. We here provide a comprehensive review of the therapeutic effects and mechanistic underpinnings of medicinal plants and microbial metabolites in BC management. The future perspectives on the translation of these findings to the personalized treatment of BC are provided and discussed.

7.
Curr Med Chem ; 29(40): 6169-6196, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35894455

RESUMEN

According to the latest epidemiological data, breast cancer has recently been the most frequently diagnosed malignancy. To date, a body of evidence has established the involvement of multiple - and frequently interrelated - genetic and environmental factors in the pathogenesis of the disease. Emerging research on cancer prevention has highlighted the deterrence potential of interventions targeting environmental risk factors, particularly diet. In this aspect, the current review reveals the latest scientific results regarding epigallocatechin-3-gallate (EGCG) - a catechin most commonly found in green tea, as a potential chemopreventive dietary agent against breast cancer. in vitro studies on EGCG have demonstrated its effect on cell cycle progression and its potential to suppress several intracellular signaling pathways involved in breast cancer pathogenesis. In addition, EGCG possesses specific apoptosis-inducing characteristics that seem to enhance its role as a regulator of cell survival. Preclinical data seem to support using EGCG as an effective adjunct to EGFR-targeting treatments. The authors' appraisal of the literature suggests that although preclinical evidence has documented the anticarcinogenic features of EGCG, limited large-scale epidemiological studies are investigating the consumption of EGCG - containing nutrients in the prevention and management of breast cancer risk. This literature review aims to liaise between preclinical and epidemiological research, surveying the existing evidence and unraveling relevant knowledge gaps.


Asunto(s)
Anticarcinógenos , Neoplasias de la Mama , Catequina , Anticarcinógenos/farmacología , Anticarcinógenos/uso terapéutico , Apoptosis , Neoplasias de la Mama/tratamiento farmacológico , Catequina/análogos & derivados , Catequina/farmacología , Catequina/uso terapéutico , Receptores ErbB , Femenino , Humanos ,
8.
Eur J Investig Health Psychol Educ ; 12(3): 334-343, 2022 Mar 14.
Artículo en Inglés | MEDLINE | ID: mdl-35323210

RESUMEN

Infrared radiation (IR) is a promising complementary treatment for musculoskeletal conditions and chronic pain. By means of a systematic review, we evaluated the contribution of IR to the management of these ailments. PubMed-MEDLINE, Scopus, and Cochrane Library-Cochrane Central Register of Controlled Trials were systematically searched until 20 December 2021. The literature search yielded 233 relevant records. Following the screening of titles and abstracts, 42 full-texts were evaluated. As per inclusion/exclusion criteria, 13 publications were entered into the qualitative assessment. These studies described the effects of IR in humans: three studies focused on osteoarthritis, four studies on fibromyalgia, and six encompassed a wider range of diseases (ankylosing spondylitis, recovery from sports injuries, myofascial pain syndrome). Based on the findings of our systematic review, we noted a decrease in pain levels, as evaluated by the visual analog scale (VAS), in patients suffering from musculoskeletal disorders treated with IR. In addition, IR use led to a decrease in Fibromyalgia Impact Questionnaire (FiQ) scores in subjects diagnosed with fibromyalgia. Nevertheless, IR has failed to facilitate muscle recovery following athletic injuries.

9.
Front Pharmacol ; 13: 801733, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35264951

RESUMEN

Endometrial cancer (EC) is the sixth most prevalent type of cancer among women. Kinases, enzymes mediating the transfer of adenosine triphosphate (ATP) in several signaling pathways, play a significant role in carcinogenesis and cancer cells' survival and proliferation. Cyclin-dependent kinases (CDKs) are involved in EC pathogenesis; therefore, CDK inhibitors (CDKin) have a noteworthy therapeutic potential in this type of cancer, particularly in EC type 1. Natural compounds have been used for decades in the treatment of cancer serving as a source of anticancer bioactive molecules. Many phenolic and non-phenolic natural compounds covering flavonoids, stilbenoids, coumarins, biphenyl compounds, alkaloids, glycosides, terpenes, and terpenoids have shown moderate to high effectiveness against CDKin-mediated carcinogenic signaling pathways (PI3K, ERK1/2, Akt, ATM, mTOR, TP53). Pharmaceutical regimens based on two natural compounds, trabectedin and ixabepilone, have been investigated in humans showing short and midterm efficacy as second-line treatments in phase II clinical trials. The purpose of this review is twofold: the authors first provide an overview of the involvement of kinases and kinase inhibitors in the pathogenesis and treatment of EC and then discuss the existing evidence about natural products' derived kinase inhibitors in the management of the disease and outline relevant future research.

10.
Eur J Clin Nutr ; 76(6): 891-898, 2022 06.
Artículo en Inglés | MEDLINE | ID: mdl-34853413

RESUMEN

BACKGROUND/OBJECTIVES: Religious fasting (RF) is practiced annually by millions of Christian and Muslim followers worldwide. Scarce data exist on the impact of RF on the metabolic and hematological profile of individuals with or without dyslipidemia. SUBJECTS/METHODS: The present study included: (i) 60 Greek Orthodox participants, 30 with dyslipidemia and 30 without dyslipidemia, who abstained from meat, fish and dairy products for seven consecutive weeks, and (ii) 15 young, non-dyslipidemic Muslim participants abstaining totally from food and liquid from dawn till sunset during 30 days. Biochemical (iron, ferritin, vitamin B12, calcium, low-density lipoprotein (LDL), high-density lipoprotein (HDL), total cholesterol (TC), triglyceride and fasting glucose) and hematological (hemoglobin, hematocrit) serum blood test results of study participants were measured pre- and post- RF (at weeks 0 and 7 for Orthodox participants and at weeks 0 and 4 for Muslim participants). RESULTS: In dyslipidemic and non-dyslipidemic Orthodox participants, a significant reduction of fasting glucose, HDL, LDL and TC levels was found post-RF. Hemoglobin, hematocrit, iron and ferritin levels were significantly increased, while post-RF vitamin B12 and calcium levels were substantially decreased. Subanalysis between dyslipidemic and non-dyslipidemic Orthodox participants revealed a greater decrease of cholesterol levels in the former. In Muslim participants, triglyceride, LDL and total cholesterol levels were increased post-RF (all p values < 0.05). CONCLUSIONS: Our study adds to the existing literature evidence about the significant impact of RF on metabolic and hematological profiles of Orthodox and Muslim followers. The prevention of calcium and B12 deficiency during Orthodox RF by supplement consumption as well as the protection from dehydration and dysregulation of lipid metabolism during Ramadan RF should concern both clinicians and dietician nutritionists. Nevertheless, studies with larger sample size and/or long-term follow-up are warranted before reaching definite conclusions about the effects of RF on human health.


Asunto(s)
Dislipidemias , Ayuno , Animales , Calcio , Colesterol , Productos Lácteos , Ferritinas , Glucosa , Hemoglobinas , Humanos , Hierro , Lipoproteínas HDL , Religión , Triglicéridos , Vitamina B 12
11.
Front Pharmacol ; 12: 758159, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34925017

RESUMEN

Background: The world has been unprecedentedly hit by a global pandemic which broke the record of deadly pandemics that faced humanity ever since its existence. Even kids are well-versed in the terminologies and basics of the SARS-CoV-2 virus and COVID-19 now. The vaccination program has been successfully launched in various countries, given that the huge global population of concern is still far behind to be vaccinated. Furthermore, the scarcity of any potential drug against the COVID-19-causing virus forces scientists and clinicians to search for alternative and complementary medicines on a war-footing basis. Aims and Objectives: The present review aims to cover and analyze the etiology and epidemiology of COVID-19, the role of intestinal microbiota and pro-inflammatory markers, and most importantly, the natural products to combat this deadly SARS-CoV-2 virus. Methods: A primary literature search was conducted through PubMed and Google Scholar using relevant keywords. Natural products were searched from January 2020 to November 2020. No timeline limit has been imposed on the search for the biological sources of those phytochemicals. Interactive mapping has been done to analyze the multi-modal and multi-target sources. Results and Discussion: The intestinal microbiota and the pro-inflammatory markers that can serve the prognosis, diagnosis, and treatment of COVID-19 were discussed. The literature search resulted in yielding 70 phytochemicals and ten polyherbal formulations which were scientifically analyzed against the SARS-CoV-2 virus and its targets and found significant. Retrospective analyses led to provide information about 165 biological sources that can also be screened if not done earlier. Conclusion: The interactive analysis mapping of biological sources with phytochemicals and targets as well as that of phytochemical class with phytochemicals and COVID-19 targets yielded insights into the multitarget and multimodal evidence-based complementary medicines.

12.
J BUON ; 26(1): 33-38, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33721429

RESUMEN

The knowledge of Anatomy during the Ottoman domination in Greece has not been widely studied. Medical knowledge of the time can be retrieved from folk and erudite books called Iatrosophia. The majority of these books focused on empirical diagnostics and therapeutics. However, a small quota of these Iatrosophia includes important information about anatomy. The interest in anatomy appears only after the Neohellenic Enlightenment (1750-1821) and has been associated to the scholarly background of the 1821 revolution against the Ottomans. At the same time, anatomy has been discussed by various authors in diverse contexts. All in all, it appears that a consensus on the importance of anatomy has been established among Greek scholars in the late 18th century, leading to the translation of current anatomical knowledge to the contemporary language and literature.


Asunto(s)
Anatomía/historia , Historia de la Medicina , Grecia , Historia del Siglo XVIII , Historia del Siglo XIX , Humanos
13.
Curr Gene Ther ; 19(6): 359-366, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-31914913

RESUMEN

BACKGROUND: Angelman Syndrome (AS) is a congenital non inherited neurodevelopmental disorder. The contemporary AS management is symptomatic and it has been accepted that gene therapy may play a key role in the treatment of AS. OBJECTIVE: The purpose of this study is to summarize existing and suggested gene therapy approaches to Angelman syndrome. METHODS: This is a literature review. Pubmed and Scopus databases were researched with keywords (gene therapy, Angelman's syndrome, neurological disorders, neonates). Peer-reviewed studies that were closely related to gene therapies in Angelman syndrome and available in English, Greek, Ukrainian or Indonesian were included. Studies that were published before 2000 were excluded and did not align with the aforementioned criteria. RESULTS: UBE3A serves multiple roles in signaling and degradation procedures. Although the restoration of UBE3A expression rather than targeting known activities of the molecule would be the optimal therapeutic goal, it is not possible so far. Reinstatement of paternal UBE3A appears as an adequate alternative. This can be achieved by administering topoisomerase-I inhibitors or reducing UBE3A antisense transcript (UBE3A-ATS), a molecule which silences paternal UBE3A. CONCLUSION: Understanding UBE3A imprinting unravels the path to an etiologic treatment of AS. Gene therapy models tested on mice appeared less effective than anticipated pointing out that activation of paternal UBE3A cannot counteract the existing CNS defects. On the other hand, targeting abnormal downstream cell signaling pathways has provided promising rescue effects. Perhaps, combined reinstatement of paternal UBE3A expression with abnormal signaling pathways-oriented treatment is expected to provide better therapeutic effects. However, AS gene therapy remains debatable in pharmacoeconomics and ethics context.


Asunto(s)
Síndrome de Angelman/genética , Síndrome de Angelman/terapia , Terapia Genética , Ubiquitina-Proteína Ligasas/genética , Ubiquitina-Proteína Ligasas/metabolismo , Animales , Ansiolíticos/farmacología , Antiparkinsonianos/farmacología , Buspirona/farmacología , Dieta Cetogénica , Suplementos Dietéticos , Modelos Animales de Enfermedad , Silenciador del Gen , Humanos , Levodopa/farmacología , Ratones , Minociclina/farmacología , Neuronas/metabolismo , Transducción de Señal , Inhibidores de Topoisomerasa I/farmacología
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA