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1.
Maturitas ; 166: 65-85, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36081216

RESUMO

This project aims to develop eligibility criteria for menopausal hormone therapy (MHT). The tool should be similar to those already established for contraception A consortium of scientific societies coordinated by the Spanish Menopause Society met to formulate recommendations for the use of MHT by women with medical conditions based on the best available evidence. The project was developed in two phases. As a first step, we conducted 14 systematic reviews and 32 metanalyses on the safety of MHT (in nine areas: age, time of menopause onset, treatment duration, women with thrombotic risk, women with a personal history of cardiovascular disease, women with metabolic syndrome, women with gastrointestinal diseases, survivors of breast cancer or of other cancers, and women who smoke) and on the most relevant pharmacological interactions with MHT. These systematic reviews and metanalyses helped inform a structured process in which a panel of experts defined the eligibility criteria according to a specific framework, which facilitated the discussion and development process. To unify the proposal, the following eligibility criteria have been defined in accordance with the WHO international nomenclature for the different alternatives for MHT (category 1, no restriction on the use of MHT; category 2, the benefits outweigh the risks; category 3, the risks generally outweigh the benefits; category 4, MHT should not be used). Quality was classified as high, moderate, low or very low, based on several factors (including risk of bias, inaccuracy, inconsistency, lack of directionality and publication bias). When no direct evidence was identified, but plausibility, clinical experience or indirect evidence were available, "Expert opinion" was categorized. For the first time, a set of eligibility criteria, based on clinical evidence and developed according to the most rigorous methodological tools, has been defined. This will provide health professionals with a powerful decision-making tool that can be used to manage menopausal symptoms.


Assuntos
Neoplasias da Mama , Terapia de Reposição de Estrogênios , Menopausa , Feminino , Humanos , Neoplasias da Mama/induzido quimicamente , Terapia de Reposição de Estrogênios/efeitos adversos , Pessoal de Saúde , Sociedades Científicas
2.
Mater Today Bio ; 13: 100191, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-35024597

RESUMO

Inorganic materials can provide a set of tools to decontaminate solid, liquid or air containing viral particles. The use of disinfectants can be limited or not practical in scenarios where continuous cleaning is not feasible. Physicochemical differences between viruses raise the need for effective formulations for all kind of viruses. In the present work we describe two types of antimicrobial inorganic materials: i) a novel soda-lime glass (G3), and ii) kaolin containing metals nanoparticles (Ag or CuO), as materials to disable virus infectivity. Strong antiviral properties can be observed in G3 glass, and kaolin-containing nanoparticle materials showing a reduction of viral infectivity close to 99%. in the first 10 â€‹min of contact of vesicular stomatitis virus (VSV). A potent virucidal activity is also present in G3 and kaolin containing Ag or CuO nanoparticles against all kinds of viruses tested, reducing more than 99% the amount of HSV-1, Adenovirus, VSV, Influenza virus and SARS-CoV-2 exposed to them. Virucidal properties could be explained by a direct interaction of materials with viruses as well as inactivation by the presence of virucidal elements in the material lixiviates. Kaolin-based materials guarantee a controlled release of active nanoparticles with antiviral activity. Current coronavirus crisis highlights the need for new strategies to remove viruses from contaminated areas. We propose these low-cost inorganic materials as useful disinfecting antivirals in the actual or future pandemic threats.

3.
Cells ; 9(6)2020 06 05.
Artigo em Inglês | MEDLINE | ID: mdl-32516884

RESUMO

Glioblastoma (GBM) is the most aggressive and frequent primary brain tumor in adults with a median overall survival of 15 months. Tumor recurrence and poor prognosis are related to cancer stem cells (CSCs), which drive resistance to therapies. A common characteristic in GBM is CDKN2A gene loss, located close to the cluster of type I IFN genes at Ch9p21. Newcastle disease virus (NDV) is an avian paramyxovirus with oncolytic and immunostimulatory properties that has been proposed for the treatment of GBM. We have analyzed the CDKN2A-IFN I gene cluster in 1018 glioma tumors and evaluated the NDV oncolytic effect in six GBM CSCs ex vivo and in a mouse model. Our results indicate that more than 50% of GBM patients have some IFN deletion. Moreover, GBM susceptibility to NDV is dependent on the loss of the type I IFN. Infection of GBM with an NDV-expressing influenza virus NS1 protein can overcome the resistance to oncolysis by NDV of type I-competent cells. These results highlight the potential of using NDV vectors in antitumor therapies.


Assuntos
Neoplasias Encefálicas/genética , Inibidor p16 de Quinase Dependente de Ciclina/genética , Glioma/genética , Glioma/terapia , Interferon Tipo I/genética , Família Multigênica , Vírus da Doença de Newcastle/fisiologia , Vírus Oncolíticos/fisiologia , Neoplasias Encefálicas/patologia , Neoplasias Encefálicas/terapia , Glioma/patologia , Humanos , Interferon beta/farmacologia , Cinética , Modelos Biológicos , Células-Tronco Neoplásicas/metabolismo , Células-Tronco Neoplásicas/patologia , Vírus da Doença de Newcastle/patogenicidade , Vírus Oncolíticos/efeitos dos fármacos , Proteínas Recombinantes/farmacologia , Replicação Viral/efeitos dos fármacos
4.
Antimicrob Agents Chemother ; 60(6): 3524-32, 2016 06.
Artigo em Inglês | MEDLINE | ID: mdl-27021313

RESUMO

The protozoan parasite Leishmania donovani is the causative agent of visceral leishmaniasis, a disease potentially fatal if not treated. Current available treatments have major limitations, and new and safer drugs are urgently needed. In recent years, advances in high-throughput screening technologies have enabled the screening of millions of compounds to identify new antileishmanial agents. However, most of the compounds identified in vitro did not translate their activities when tested in in vivo models, highlighting the need to develop more predictive in vitro assays. In the present work, we describe the development of a robust replicative, high-content, in vitro intracellular L. donovani assay. Horse serum was included in the assay media to replace standard fetal bovine serum, to completely eliminate the extracellular parasites derived from the infection process. A novel phenotypic in vitro infection model has been developed, complemented with the identification of the proliferation of intracellular amastigotes measured by EdU incorporation. In vitro and in vivo results for miltefosine, amphotericin B, and the selected compound 1 have been included to validate the assay.


Assuntos
Anfotericina B/farmacologia , Antiprotozoários/uso terapêutico , Avaliação Pré-Clínica de Medicamentos/métodos , Leishmania donovani/crescimento & desenvolvimento , Leishmaniose Visceral/tratamento farmacológico , Fosforilcolina/análogos & derivados , Animais , Linhagem Celular Tumoral , Feminino , Humanos , Leishmania donovani/efeitos dos fármacos , Macrófagos/parasitologia , Camundongos , Camundongos Endogâmicos BALB C , Testes de Sensibilidade Parasitária , Fosforilcolina/farmacologia
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