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1.
Women Health ; 64(7): 551-558, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-39111847

RESUMO

Women with deep infiltrating endometriosis (DIE) can benefit from the use of progestins. Our aim is to explore if levonorgestrel-releasing intrauterine system (LNG-IUS) non inferior to dienogest (DNG) in improving deep endometriosis women's quality of life (QoL). This randomized open-label clinical trial included forty women with DIE assessed using clinical history and physical examination, transvaginal ultrasonography and magnetic resonance of the pelvis without any previous surgical treatment, with two treatments arms. The two groups underwent a 3-month washout of hormonal treatments, and then received either DNG or LNG-IUS for 6 months. QoL was assessed prior to and 6 months after the intervention, using the SF36 and the EHP30. DNG and LNG-IUS showed an increase on all domains of the SF36 (p < .001). There was no difference between treatments on the improvement observed (p > .05 for all domains). DNG and LNG-IUS, also, showed improvement on all domains of EHP30 (p < .001), except "relationship with children" and "feelings about pregnancy." However, there was no statistical difference between treatments for all sections scores (p > .05). The treatment of deep endometriosis symptoms using either DNG or LNG-IUS in women with no prior surgical treatment is associated with improvement in QoL.Trial Registration Number: This trial is registered on "The Brazilian Registry of Clinical Trials (ReBECID: RBR-8fjx2jp)," that is part of Primary Registries in the WHO Registry Network, under the title: "Dienogest versus Levonorgestrel IUS on deep endometriosis patient´s QoL without surgery" on June 14, 2021; https://ensaiosclinicos.gov.br/rg/RBR-8fjx2jp.


Assuntos
Endometriose , Dispositivos Intrauterinos Medicados , Levanogestrel , Nandrolona , Qualidade de Vida , Humanos , Feminino , Endometriose/tratamento farmacológico , Endometriose/psicologia , Levanogestrel/uso terapêutico , Levanogestrel/administração & dosagem , Nandrolona/análogos & derivados , Nandrolona/uso terapêutico , Adulto , Resultado do Tratamento
2.
Arch Microbiol ; 206(9): 368, 2024 Aug 06.
Artigo em Inglês | MEDLINE | ID: mdl-39107625

RESUMO

This study investigated crotamine (CTA), a peptide derived from the venom of the South American rattlesnake Crotalus durissus terrificus, known for its exceptional cell penetration potential. The objective was to explore the antibacterial and antifungal activity of CTA, its ability to inhibit efflux pumps and evaluate the effectiveness of its pharmacological combination with antibiotics and antifungals. In microbiological assays, CTA in combination with antibiotics was tested against strains of S. aureus and the inhibition of NorA, Tet(K) and MepA efflux pumps was also evaluated. CTA alone did not present clinically relevant direct antibacterial action, presenting MIC > 209.7 µM against strains S. aureus 1199B, IS-58, K2068. The standard efflux pump inhibitor CCCP showed significant effects in all negative relationships to assay reproducibility. Against the S. aureus 1199B strain, CTA (20.5 µM) associated with norfloxacin diluted 10 × (320.67 µM) showed a potentiating effect, in relation to the control. Against the S. aureus IS-58 strain, the CTA associated with tetracycline did not show a significant combinatorial effect, either with 2304 or 230.4 µM tetracycline. CTA at a concentration of 2.05 µM associated with ciprofloxacin at a concentration of 309.4 µM showed a significant potentiating effect. In association with EtBr, CTA at concentrations of 2.05 and 20.5 µM potentiated the effect in all strains tested, reducing the prevention of NorA, Tet(K) and MepA efflux pumps. In the C. albicans strain, a potentiating effect of fluconazole (334.3 µM) was observed when combined with CTA (2.05 µM). Against the C. tropicalis strain, a significant effect was also observed in the association of fluconazole 334.3 µM, where CTA 2.05 µM considerably reduced fungal growth and decreased the potentiation of fluconazole. Against the C. krusei strain, no significant potentiating effect of fluconazole was obtained by CTA. Our results indicate that CTA in pharmacological combination potentiates the effects of antibiotics and antifungal. This represents a new and promising antimicrobial strategy for treating a wide variety of infections.


Assuntos
Antibacterianos , Antifúngicos , Venenos de Crotalídeos , Crotalus , Testes de Sensibilidade Microbiana , Antifúngicos/farmacologia , Antifúngicos/química , Antibacterianos/farmacologia , Venenos de Crotalídeos/farmacologia , Animais , Staphylococcus aureus/efeitos dos fármacos , Sinergismo Farmacológico , Candida albicans/efeitos dos fármacos , Serpentes Peçonhentas
3.
Chem Biodivers ; : e202400681, 2024 Aug 13.
Artigo em Inglês | MEDLINE | ID: mdl-39136585

RESUMO

IIn this study, we report the metabolic profiling of several previously uncharacterized Passiflora species native to Brazil, employing molecular networks to delve deeper into chemical constituents. Using the GNPS platform, in silico tools, and substructure annotation techniques, we expanded the chemical annotations. Principal Coordinate Analysis (PCoA) revealed significant metabolic similarities between several species, including P. incarnata, suggesting shared pharmacological potential. Our identification of metabolic compounds facilitated comparisons between understudied species with medicinal properties. Notably, we documented 25 previously uncharacterized species, paving the way for the development of novel products aimed at improving human well-being. This research focused on several native Passiflora species from Brazil, highlighting their unexplored therapeutic potential.

4.
Artigo em Inglês | MEDLINE | ID: mdl-39136738

RESUMO

Euphorbiaceae is a family of dicotyledonous angiosperm plants that occur mainly in the tropics and produce a variety of secondary metabolites. Given the abundance of the Euphorbiaceae species and the diversity of substances they produce, this study aims to investigate paten documents concerning inventions and models involving the pharmacological use of these species, contributing to the study of their medicinal potential. The present review delves into patent documents in the Patentscope database, from the application of search criteria, such as "simple search" with the "Euphorbiaceae" keyword, limited to the front page, with stemming, without language limitation, from any patent office, and excluding non-patent literature (NPL). The selected patents were prevalently published in East Asian offices between 1998 and 2023, including 41 species of Euphorbiaceae of 19 genera, with 31 metabolites represented. The collected metabolites predominantly exhibited anti-tumoral (N = 21), anti-inflammatory (N = 10), antioxidant (N = 7), and anti-bacterial (N = 6) activities. Additionally, some substances have shown valid properties for treating non-communicable diseases (N = 8). The patents demonstrate the biotechnological potential of species from the Euphorbiaceae family, which are exceptionally satile regarding their applications in the health sector. However, the small number of patents that identify specific metabolites hinders a more thorough investigation of the activities of the products extracted from these species.

5.
Pharm Biol ; 62(1): 577-591, 2024 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-39016037

RESUMO

CONTEXT: The botanical species Bauhinia guianensis Aublet (Leguminosae-Cercidoideae) is traditionally used in the Amazon for medicinal purposes. OBJECTIVE: The acute toxicity of the hydroethanolic extracts from B. guianensis leaves and stems (HELBg and HESBg) was evaluated in zebrafish (Danio rerio), with emphasis on the embryonic developmental stage and adult alterations. MATERIALS AND METHODS: Extracts were analyzed on LC-DAD-MS/MS. Zebrafish eggs were inoculated individually with concentrations of HELBg and HESBg (0.25, 0.5, 0.75, 1.0, and 1.5 µg/mL), observed for 96 h. Adult zebrafish were treated with a single oral dose (100, 200, 500, 1000, and 2000 mg/kg) of HELBg and HESBg, observed for 48 h. RESULTS: HELBg and HESBg analysis detected 55 compounds. Both extracts exhibited toxicity, including embryo coagulation at higher doses of HELBg and absence of heartbeats in embryos at all doses of HESBg. Behavioral variations were observed; tissue alterations in adult zebrafish were found at the highest doses, primarily in the liver, intestine, and kidneys because of HELBg and HESBg effects. The LD50 of HESBg was 1717 mg/kg, while HELBg exceeded the limit dose of 2000 mg/kg. CONCLUSIONS: The study on acute toxicity of B. guianensis extracts exhibits significant toxic potential, emphasizing effects on embryonic and adult zebrafish. The results suggest relative safety of the species preparations, encouraging further clinical trials on potential biological activities.


Assuntos
Bauhinia , Embrião não Mamífero , Extratos Vegetais , Folhas de Planta , Testes de Toxicidade Aguda , Peixe-Zebra , Animais , Extratos Vegetais/toxicidade , Extratos Vegetais/isolamento & purificação , Bauhinia/química , Embrião não Mamífero/efeitos dos fármacos , Dose Letal Mediana , Relação Dose-Resposta a Droga , Caules de Planta , Etanol/toxicidade , Espectrometria de Massas em Tandem , Masculino , Solventes/química , Feminino
6.
Chembiochem ; 25(15): e202400081, 2024 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-38830828

RESUMO

Mucopolysaccharidosis type IIIB (MPS IIIB) is an autosomal inherited disease caused by mutations in gene encoding the lysosomal enzyme N-acetyl-alpha-glucosaminidase (NAGLU). These mutations result in reduced NAGLU activity, preventing it from catalyzing the hydrolysis of the glycosaminoglycan heparan sulfate (HS). There are currently no approved treatments for MPS IIIB. A novel approach in the treatment of lysosomal storage diseases is the use of pharmacological chaperones (PC). In this study, we used a drug repurposing approach to identify and characterize novel potential PCs for NAGLU enzyme. We modeled the interaction of natural and artificial substrates within the active cavity of NAGLU (orthosteric site) and predicted potential allosteric sites. We performed a virtual screening for both the orthosteric and the predicted allosteric site against a curated database of human tested molecules. Considering the binding affinity and predicted blood-brain barrier permeability and gastrointestinal absorption, we selected atovaquone and piperaquine as orthosteric and allosteric PCs. The PCs were evaluated by their capacity to bind NAGLU and the ability to restore the enzymatic activity in human MPS IIIB fibroblasts These results represent novel PCs described for MPS IIIB and demonstrate the potential to develop novel therapeutic alternatives for this and other protein deficiency diseases.


Assuntos
Acetilglucosaminidase , Mucopolissacaridose III , Humanos , Mucopolissacaridose III/tratamento farmacológico , Mucopolissacaridose III/metabolismo , Mucopolissacaridose III/patologia , Acetilglucosaminidase/metabolismo , Acetilglucosaminidase/antagonistas & inibidores , Acetilglucosaminidase/química , Acetilglucosaminidase/genética , Sítio Alostérico/efeitos dos fármacos , Regulação Alostérica/efeitos dos fármacos
7.
Dent J (Basel) ; 12(6)2024 May 21.
Artigo em Inglês | MEDLINE | ID: mdl-38920854

RESUMO

BACKGROUND: Dental caries is a dynamic, multifactorial disease that destroys teeth and can affect anyone's quality of life because it can cause tooth loss and make chewing difficult. Dental caries involves various factors, such as Streptococcus mutans and host factors. Currently, adjuvant therapies, such as curcumin, have emerged, but how they work has not been adequately described. Therefore, this work aims to identify the molecular mechanism of curcumin in caries and Streptococcus mutans. METHODS: We obtained differentially expressed genes from a GEO dataset, and curcumin targets were obtained from other databases. The common targets were analyzed according to gene ontology enrichment, key genes were obtained, and binding to curcumin was verified by molecular docking. RESULTS: Our analysis showed that curcumin presents 134 therapeutic targets in caries. According to the gene ontology analysis, these targets are mainly involved in apoptosis and inflammation. There are seven key proteins involved in the action of curcumin on caries: MAPK1, BCL2, KRAS, CXCL8, TGFB1, MMP9, and IL1B, all of which spontaneously bind curcumin. In addition, curcumin affects metabolic pathways related to lipid, purine, and pyrimidine metabolism in Streptococcus mutans. CONCLUSIONS: Curcumin affects both host carious processes and Streptococcus mutans.

8.
Pharmaceuticals (Basel) ; 17(6)2024 Jun 06.
Artigo em Inglês | MEDLINE | ID: mdl-38931408

RESUMO

This work examines the current landscape of drug discovery and development, with a particular focus on the chemical and pharmacological spaces. It emphasizes the importance of understanding these spaces to anticipate future trends in drug discovery. The use of cheminformatics and data analysis enabled in silico exploration of these spaces, allowing a perspective of drugs, approved drugs after 2020, and clinical candidates, which were extracted from the newly released ChEMBL34 (March 2024). This perspective on chemical and pharmacological spaces enables the identification of trends and areas to be occupied, thereby creating opportunities for more effective and targeted drug discovery and development strategies in the future.

9.
Int J Pharm ; 660: 124304, 2024 Jul 20.
Artigo em Inglês | MEDLINE | ID: mdl-38848799

RESUMO

Depression is one of the most common psychiatric disorders. Nanotechnology has emerged to optimize the pharmacological response. Therefore, the aim of this work was to develop and characterize liposomes and nanocapsules containing paroxetine hydrochloride and evaluate their antidepressant-like effect using the open field and tail suspension tests in mice. Liposomes and nanocapsules were prepared using the reverse-phase evaporation and nanoprecipitation methods, respectively. The particle size of the formulation ranged from 121.81 to 310.73 nm, the polydispersity index from 0.096 to 0.303, the zeta potential from -11.94 to -34.50 mV, the pH from 5.31 to 7.38, the drug content from 80.82 to 94.36 %, and the association efficiency was 98 %. Paroxetine hydrochloride showed slower release when associated with liposomes (43.82 %) compared to nanocapsules (95.59 %) after 10 h. In Vero cells, in vitro toxicity showed a concentration-dependent effect for paroxetine hydrochloride nanostructures. Both nanostructures decreased the immobility time in the TST at 2.5 mg/kg without affecting the number of crossings in the open field test, suggesting the antidepressant-like effect of paroxetine. In addition, the nanocapsules decreased the number of groomings, reinforcing the anxiolytic effect of this drug. These results suggest that the nanostructures were effective in preserving the antidepressant-like effect of paroxetine hydrochloride even at low doses.


Assuntos
Lipossomos , Nanocápsulas , Paroxetina , Animais , Paroxetina/administração & dosagem , Paroxetina/farmacologia , Paroxetina/química , Nanocápsulas/química , Camundongos , Chlorocebus aethiops , Masculino , Células Vero , Tamanho da Partícula , Liberação Controlada de Fármacos , Depressão/tratamento farmacológico , Elevação dos Membros Posteriores , Antidepressivos/administração & dosagem , Antidepressivos/química , Antidepressivos/farmacologia , Antidepressivos de Segunda Geração/administração & dosagem , Antidepressivos de Segunda Geração/química , Antidepressivos de Segunda Geração/farmacologia , Comportamento Animal/efeitos dos fármacos , Sobrevivência Celular/efeitos dos fármacos
10.
Biofabrication ; 16(4)2024 Jul 23.
Artigo em Inglês | MEDLINE | ID: mdl-38866003

RESUMO

Tumor-on-chips (ToCs) are useful platforms for studying the physiology of tumors and evaluating the efficacy and toxicity of anti-cancer drugs. However, the design and fabrication of a ToC system is not a trivial venture. We introduce a user-friendly, flexible, 3D-printed microfluidic device that can be used to culture cancer cells or cancer-derived spheroids embedded in hydrogels under well-controlled environments. The system consists of two lateral flow compartments (left and right sides), each with two inlets and two outlets to deliver cell culture media as continuous liquid streams. The central compartment was designed to host a hydrogel in which cells and microtissues can be confined and cultured. We performed tracer experiments with colored inks and 40 kDa fluorescein isothiocyanate dextran to characterize the transport/mixing performances of the system. We also cultured homotypic (MCF7) and heterotypic (MCF7-BJ) spheroids embedded in gelatin methacryloyl hydrogels to illustrate the use of this microfluidic device in sustaining long-term micro-tissue culture experiments. We further demonstrated the use of this platform in anticancer drug testing by continuous perfusion of doxorubicin, a commonly used anti-cancer drug for breast cancer. In these experiments, we evaluated drug transport, viability, glucose consumption, cell death (apoptosis), and cytotoxicity. In summary, we introduce a robust and friendly ToC system capable of recapitulating relevant aspects of the tumor microenvironment for the study of cancer physiology, anti-cancer drug transport, efficacy, and safety. We anticipate that this flexible 3D-printed microfluidic device may facilitate cancer research and the development and screening of strategies for personalized medicine.


Assuntos
Antineoplásicos , Neoplasias da Mama , Impressão Tridimensional , Esferoides Celulares , Humanos , Esferoides Celulares/efeitos dos fármacos , Esferoides Celulares/patologia , Esferoides Celulares/metabolismo , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/patologia , Neoplasias da Mama/metabolismo , Antineoplásicos/farmacologia , Antineoplásicos/química , Feminino , Células MCF-7 , Hidrogéis/química , Dispositivos Lab-On-A-Chip , Linhagem Celular Tumoral , Ensaios de Seleção de Medicamentos Antitumorais , Dextranos/química , Gelatina/química , Doxorrubicina/farmacologia , Doxorrubicina/química , Sobrevivência Celular/efeitos dos fármacos , Metacrilatos
11.
Artigo em Inglês | MEDLINE | ID: mdl-38859772

RESUMO

Green propolis is a resin produced from Baccharis dracunculifolia, which has as its main compounds flavonoids, derivatives of cinnamic acids, such as artepillin C and baccarin. This resin has antibacterial, antifungal, anti-inflammatory, antioxidant, and anticancer activities. This review aimed to analyze pharmaceutical patents containing green propolis in various formulations. The search was conducted in the National Institute of Industrial Property (INPI), the Patent Search of Spain and Latin America (Latipat-Espacenet), the World Intellectual Property Organization (WIPO), and Google Patents, with a combination of the keywords green propolis, green propolis extract, pharmacology, and pharmaceutical product. Primary research identified 60 patents, from which 22 were selected after applying the inclusion criteria. The selected patents referred to products with pharmacological activities, from cancer treatment to food supplements and included innovations for improved controlled release of the green propolis compounds. Most of the documents concerned the preparation and/or formulation of the green propolis extract, followed by innovative extraction methods, treatment and systemic use, and finally by topical use and quality control techniques and procedures. Thus, the reviewed patents of green propolis provided valuable insights into the pharmaceutical applications of green propolis, showing its potential in diverse formulations and treatments.

12.
Nutrients ; 16(9)2024 May 06.
Artigo em Inglês | MEDLINE | ID: mdl-38732642

RESUMO

Vernonia cinerea (L.) Less. is a perennial herbaceous plant found mainly in tropical areas, particularly in Southeast Asia, South America, and India. Various parts of V. cinerea have traditionally been used in folk medicine to treat several diseases, such as malaria, fever, and liver diseases. V. cinerea has so far yielded about 92 secondary metabolites. The majority of these are sesquiterpene lactones, but triterpenes, flavonoids, steroids, phenolics, and other compounds are present as well. V. cinerea crude extracts reportedly exhibit anti-inflammatory, antiprotozoal, antidiabetic, anticancer, antimicrobial, antioxidant, and renoprotective activities. This study aims to provide the latest up-to-date information on the botanical characterization, distribution, traditional uses, phytochemistry, and pharmacological activity of V. cinerea. Information on V. cinerea was thoroughly reviewed. The literature published between 1950 and 2024 was compiled through online bibliographic databases, including SciFinder, Web of Science, Google Scholar, PubMed, ScienceDirect, Springer Link, Wiley, and the MDPI online library. The keywords used for the literature search included Vernonia cinerea (L.) Less. and the synonyms Cyanthillium cinereum (L.) H.Rob., Conyza cinerea L., and various others.


Assuntos
Medicina Tradicional , Compostos Fitoquímicos , Extratos Vegetais , Vernonia , Vernonia/química , Extratos Vegetais/farmacologia , Extratos Vegetais/química , Humanos , Compostos Fitoquímicos/farmacologia , Fitoterapia , Animais , América do Sul , Sudeste Asiático
13.
Front Integr Neurosci ; 18: 1349563, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38690084

RESUMO

Dementias are responsible for the most frequent neurodegenerative diseases and the seventh leading cause of death worldwide. As a result, there is a growing effort by the neuroscientific community to understand the physiopathology of neurodegenerative diseases, including how to alleviate the effects of the cognitive decline by means of non-pharmacological therapies (e.g., physical exercise). Studies have shown that exercise can improve aspects of brain health related to cognition. However, there still needs to be more knowledge regarding the mechanisms controlling these relationships, and a newly discovered cleansing system in the brain, named the glymphatic system, can be the missing link in this mechanism. The objective of this paper is to review recent findings regarding the potential impacts of physical exercise on the glymphatic system and its implications for the onset of neurodegenerative diseases. Additionally, considering the close interplay between exercise and sleep quality, we aim to explore how sleep patterns may intersect with exercise-induced effects on glymphatic function, further elucidating the complex relationship between lifestyle factors and brain health.

14.
Expert Rev Gastroenterol Hepatol ; 18(4-5): 203-215, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38725175

RESUMO

OBJECTIVE: To determine the effectiveness of the different pharmacological agents in preventing post-ERCP acute pancreatitis. METHODS: We included clinical trials of pharmacological interventions for prophylaxis of acute post-ERCP pancreatitis. The event evaluated was acute pancreatitis. We conducted a search strategy in MEDLINE (OVID), EMBASE, and Cochrane Central Register of Controlled Trials from inception to nowadays. We reported the information in terms of relative risks (RR) with a 95% confidence interval. We assessed the heterogeneity using the I2 test. RESULTS: We included 84 studies for analysis (30,463 patients). The mean age was 59.3 years (SD ± 7.01). Heterogeneity between studies was low (I2 = 34.4%) with no inconsistencies (p = 0.2567). Post ERCP pancreatitis was less in prophylaxis with NSAIDs (RR 0.65 95% CI [0.52 to 0.80]), aggressive hydration with Lactate Ringer (RR 0.32 95% CI [0.12-0.86]), NSAIDs + isosorbide dinitrate (RR 0.28 95% CI [0.11-0.71]) and somatostatin and analogues (RR 0.54 [0.43 to 0.68]) compared with placebo. CONCLUSIONS: NSAIDs, the Combination of NSAIDs + isosorbide dinitrate, somatostatin and analogues, and aggressive hydration with lactate ringer are pharmacological strategies that can prevent post-ERCP pancreatitis when compared to placebo. More clinical trials are required to determine the effectiveness of these drugs.


Assuntos
Anti-Inflamatórios não Esteroides , Colangiopancreatografia Retrógrada Endoscópica , Pancreatite , Idoso , Humanos , Pessoa de Meia-Idade , Doença Aguda , Anti-Inflamatórios não Esteroides/uso terapêutico , Anti-Inflamatórios não Esteroides/efeitos adversos , Colangiopancreatografia Retrógrada Endoscópica/efeitos adversos , Hidratação/métodos , Metanálise em Rede , Pancreatite/prevenção & controle , Pancreatite/etiologia , Lactato de Ringer/uso terapêutico , Lactato de Ringer/administração & dosagem , Fatores de Risco , Somatostatina/análogos & derivados , Somatostatina/uso terapêutico , Resultado do Tratamento
15.
Pharmaceuticals (Basel) ; 17(5)2024 May 14.
Artigo em Inglês | MEDLINE | ID: mdl-38794200

RESUMO

Osteoarthritis (OA) remains a chronic incurable condition, presenting substantial challenges in treatment. This study explores a novel strategy by investigating the concurrent use of cuminaldehyde, a natural compound, with indomethacin in animal models of MIA-induced OA. Our results demonstrate that the co-administration of cuminaldehyde and indomethacin does indeed produce a superior effect when compared to these compounds individually, significantly enhancing therapeutic outcomes. This effect is evidenced by a marked reduction in pro-inflammatory cytokines IL-6 and IFN-γ, alongside a significant increase in the anti-inflammatory cytokine IL-10, compared to treatments with each compound alone. Radiographic analyses further confirm the preservation of joint integrity and a reduction in osteoarthritic damage, highlighting the association's efficacy in cartilage-reducing damage. These findings suggests that the association of cuminaldehyde and indomethacin not only slows OA progression but also offers enhanced cartilage-reducing damage and fosters the production of protective cytokines. This study underscores the potential benefits of integrating natural products with pharmaceuticals in OA management and stresses the importance of further research to fully understand the mechanisms underlying the observed potentiated effects.

16.
Artigo em Inglês | MEDLINE | ID: mdl-38729257

RESUMO

The time course for recovery after anesthesia is poorly described for tricaine methanesulfonate (MS-222). We suggest that the baroreflex and the heart rate variability (HRV) could be used to index the recovery of the autonomic modulation after anesthesia. We analyzed the recovery profile of behavioral and physiological parameters over time to analyze the progression of recovery after anesthesia of American bullfrogs with MS-222. Mean heart rate stabilized after 17 h, whereas the baroreflex efficiency index took 23 h and the baroreflex operating gain, 29 h. Mean arterial pressure recovered after 26 h. Power spectral density peaked at 23 h and again after 40 h. Baroreflex was a relevant component of the first phase of HRV, while autonomic modulation for resting may take longer than 40 h. We suggest that physiological recovery is a complex phenomenon with multiple progressive phases, and the baroreflex may be a useful tool to observe the first substantial recovery of post-instrumentation capacity for autonomic modulation.


Assuntos
Aminobenzoatos , Sistema Nervoso Autônomo , Barorreflexo , Frequência Cardíaca , Rana catesbeiana , Animais , Barorreflexo/fisiologia , Frequência Cardíaca/fisiologia , Sistema Nervoso Autônomo/fisiologia , Rana catesbeiana/fisiologia , Aminobenzoatos/farmacologia , Anestesia , Masculino , Pressão Sanguínea/fisiologia , Anestésicos/farmacologia
17.
J Neurooncol ; 168(3): 555-562, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38709355

RESUMO

PURPOSE: 5-aminolevulinic acid (5-ALA) fluorescence-guided resection (FGR) has been an essential tool in the 'standard of care' of malignant gliomas. Over the last two decades, its indications have been extended to other neoplasms, such as metastases and meningiomas. However, its availability and cost-benefit still pose a challenge for widespread use. The present article reports a retrospective series of 707 cases of central nervous system (CNS) tumors submitted to FGR with pharmacological equivalent 5-ALA and discusses financial implications, feasibility and safeness. METHODS: From December 2015 to February 2024, a retrospective single institution series of 707 cases of 5-ALA FGR were analyzed. Age, gender, 5-ALA dosage, intraoperative fluorescence finding, diagnosis and adverse effects were recorded. Financial impact in the surgical treatment cost were also reported. RESULTS: there was an additional cost estimated in $300 dollars for each case, increasing from 2,37 to 3,28% of the total hospitalization cost. There were 19 (2,69%) cases of asymptomatic photosensitive reaction and 2 (0,28%) cases of photosensitive reaction requiring symptomatic treatment. 1 (0,14%) patient had a cutaneous rash sustained for up to 10 days. No other complications related to the method were evident. In 3 (0,42%) cases of patients with intracranial hypertension, there was vomiting after administration. CONCLUSION: FGR with pharmacological equivalent 5-ALA can be considered safe and efficient and incorporates a small increase in hospital expenses. It constitutes a reliable solution in avoiding prohibitive costs worldwide, especially in countries where commercial 5-ALA is unavailable.


Assuntos
Ácido Aminolevulínico , Neoplasias do Sistema Nervoso Central , Análise Custo-Benefício , Estudos de Viabilidade , Humanos , Ácido Aminolevulínico/economia , Feminino , Masculino , Estudos Retrospectivos , Pessoa de Meia-Idade , Idoso , Adulto , Neoplasias do Sistema Nervoso Central/cirurgia , Neoplasias do Sistema Nervoso Central/economia , Procedimentos Neurocirúrgicos/economia , Procedimentos Neurocirúrgicos/métodos , Cirurgia Assistida por Computador/economia , Cirurgia Assistida por Computador/métodos , Adulto Jovem , Idoso de 80 Anos ou mais , Fármacos Fotossensibilizantes/economia , Fármacos Fotossensibilizantes/uso terapêutico , Adolescente , Criança , Fluorescência , Imagem Óptica/economia
18.
Plants (Basel) ; 13(6)2024 Mar 11.
Artigo em Inglês | MEDLINE | ID: mdl-38592789

RESUMO

Medicinal plants have been a traditional remedy for numerous ailments for centuries. However, their usage is limited due to a lack of evidence-based studies elucidating their mechanisms of action. In some countries, they are still considered the first treatment due to their low cost, accessibility, and minor adverse effects. Mexico is in second place, after China, in inventoried plants for medicinal use. It has around 4000 species of medicinal plants; however, pharmacological studies have only been carried out in 5% of its entirety. The species of the Mexican arid zones, particularly in semi-desert areas, exhibit outstanding characteristics, as their adverse growing conditions (e.g., low rainfall and high temperatures) prompt these plants to produce interesting metabolites with diverse biological activities. This review explores medicinal plants belonging to the arid and semi-arid zones of Mexico, focusing on those that have stood out for their bioactive potential, such as Jatropha dioica, Turnera diffusa, Larrea tridentata, Opuntia ficus-indica, Flourensia cernua, Fouquieria splendes, and Prosopis glandulosa. Their extraction conditions, bioactive compounds, mechanisms of action, and biological efficacy are presented, with emphasis on their role in the treatment of respiratory diseases. Additionally, current research, novel applications, and perspectives concerning medicinal plants from these zones are also discussed.

19.
Value Health Reg Issues ; 42: 100983, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38663057

RESUMO

OBJECTIVES: To evaluate cost-effective pharmacological treatment in adult kidney transplant recipients from the perspective of the Colombian health system. METHODS: A decision tree model for the induction phase and a Markov model for the maintenance phase were built. A review of the clinical literature was conducted to extract probabilities, and the life-years were used as the outcome. Costs were calculated using the administrative databases. The evaluating treatment schemes are organized by groups of evidence with direct comparisons. RESULTS: In the induction phase, anti-thymocyte immunoglobulin+ methylprednisolone is dominant, more effective, and less expensive, compared with basiliximab+methylprednisolone. In the maintenance phase, azathioprine (AZA) is dominant in contrast to mycophenolate mofetil (MFM) both with cyclosporine (CIC)+ corticosteroids (CE); CIC is dominant relative to sirolimus (SIR) and tacrolimus (TAC) (both with MFM+CE or AZA+CE), and TAC is dominant compared with SIR (in addition with MFM+CE or mycophenolate sodium [MFS]+CE); MFM is dominant in relation to MFS and everolimus, and SIR is more effective MFM but it does not exceed the threshold (in sum with TAC+CE); MFS and MFM are dominant relative to everolimus, and SIR is more effective than MFM, but it does not exceed the threshold (in addiction with CIC+CE); MFM is dominant in relation to TAC (in sum with SIR+CE), and CIC+AZA+CE is dominant in relation to TAC+MFM+CE. CONCLUSIONS: The base-case results for all evidence groups are consistent with the different sensitivity analyses.


Assuntos
Imunossupressores , Transplante de Rim , Adulto , Humanos , Corticosteroides/uso terapêutico , Corticosteroides/economia , Azatioprina/uso terapêutico , Azatioprina/economia , Colômbia , Análise de Custo-Efetividade , Ciclosporina/uso terapêutico , Ciclosporina/economia , Árvores de Decisões , Rejeição de Enxerto/prevenção & controle , Rejeição de Enxerto/economia , Imunossupressores/economia , Imunossupressores/uso terapêutico , Transplante de Rim/economia , Cadeias de Markov , Ácido Micofenólico/uso terapêutico , Ácido Micofenólico/economia , Sirolimo/uso terapêutico , Sirolimo/economia , Tacrolimo/economia , Tacrolimo/uso terapêutico , Transplantados/estatística & dados numéricos
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