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1.
Sci Total Environ ; 934: 173313, 2024 May 16.
Artigo em Inglês | MEDLINE | ID: mdl-38761952

RESUMO

Taiwan, identified as pivotal in the Asian drug trafficking chain, has been experiencing a surge in illicit drug-related issues. Wastewater-based epidemiology (WBE) has emerged as a promising approach for comprehensive evaluation of actual illicit drug usage. This study presents the first WBE investigation of illicit drug consumption in Taiwan based on the analysis of wastewater from four wastewater treatment plants (WWTPs) in the Taipei metropolitan area. Additionally, it demonstrates a high correlation between the amounts of illicit drugs seized and influent concentrations over an extended period of time. The reliability of solid-phase extraction and analysis via high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) was validated for 16 illicit drugs (methamphetamine, ketamine, cocaine, codeine, methadone, morphine, meperidine, fentanyl, sufentanil, para-methoxyamphetamine (PMA), para-methoxymethamphetamine (PMMA), 3,4-methylenedioxymethamphetamine (MDMA), cathinone, methcathinone, mephedrone (MEPH), and 4-methylethcathinone (4-MEC)). Methamphetamine, ketamine, and 4-MEC were consistently detected in all wastewater samples, underscoring their prevalence in the Taipei metropolitan area. Biochemical oxygen demand (BOD) and ammonia nitrogen (ammonia N) were employed to reduce uncertainty in estimations of population size during back-calculation of illicit drug consumption. The results indicate that methamphetamine was the most consumed drug (175-740 mg day-1 1000 people-1), followed by ketamine (22-280 mg day-1 1000 people-1). In addition, urban-related WWTPs exhibited higher consumption of methamphetamine and ketamine than did the suburban-related WWTP, indicating distinct illicit drug usage patterns between suburban and urban regions. Moreover, an examination of temporal trends in wastewater from the Dihua WWTP revealed a persistent predominance of ketamine and methamphetamine, consistent with statistical data pertaining to seizure quantities and urine test results. The study provides encouraging insight into spatial and temporal variations in illicit drug usage in the Taipei metropolitan area, emphasizing the complementary role of WBE in understanding trends in illicit drug abuse.

3.
Eur J Med Chem ; 273: 116470, 2024 May 03.
Artigo em Inglês | MEDLINE | ID: mdl-38762915

RESUMO

Cancer poses a significant threat to human health. Therefore, it is urgent to develop potent anti-cancer drugs with excellent inhibitory activity and no toxic side effects. Pyrrole and its derivatives are privileged heterocyclic compounds with significant diverse pharmacological effects. These compounds can target various aspects of cancer cells and have been applied in clinical settings or are undergoing clinical trials. As a result, pyrrole has emerged as a promising drug scaffold and has been further probed to get novel entities for the treatment of cancer. This article reviews recent research progress on anti-cancer drugs containing pyrrole. It focuses on the mechanism of action, biological activity, and structure-activity relationships of pyrrole derivatives, aiming to assist in designing and synthesizing innovative pyrrole-based anti-cancer compounds.

4.
J Subst Use Addict Treat ; : 209408, 2024 May 17.
Artigo em Inglês | MEDLINE | ID: mdl-38763216

RESUMO

INTRODUCTION: Peer workers operating within health care settings can offer unique perspectives based on their own lived experience. Within alcohol and other drug (AOD) rehabilitation services, the potential value of peer work is becoming increasingly recognised. This qualitative study aimed to evaluate a newly implemented peer worker program located across three rehabilitation services in Tasmania, Australia. METHODS: Online interviews were conducted with eight clients, seven peer workers, and five non-peer worker employees with varied experience with peer worker programs. All interviews were audio-recorded and transcribed verbatim. RESULTS: Guided by an overarching exploratory-descriptive methodological framework, thematic analysis generated three overarching themes: 1) Enhancing and supporting client experiences (what peer workers did in their role to improve client experiences, 2) Changing experiences with AOD rehabilitation (the unique benefits and changes that peer work brings to AOD rehabilitation services) and 3) Finding organizational value (how defining peer work and the feasibility of the peer worker role was challenged by different organizational factors). Overall, peer work was viewed as a positive addition to all rehabilitation services that was able to enhance client experiences through various mechanisms, such as by sharing their own stories, assisting with understanding, and creating safety. Peer work was also able to create change in AOD services, by instilling hope and reducing stigma. However, ongoing challenges with defining the peer worker role in a way that offers organizational recognition and financial security remain. CONCLUSION: Peer workers offer a unique and valuable perspective when working within rehabilitation services. Through their own lived experience peer workers were able to support clients and assist them in their recovery. These findings highlight the potential benefit of peer work programs within AOD rehabilitation services.

6.
Harm Reduct J ; 21(1): 98, 2024 May 20.
Artigo em Inglês | MEDLINE | ID: mdl-38769517

RESUMO

BACKGROUND: Prevalence of hepatitis C virus (HCV) infection among people who inject drugs in the state of Manipur, India, is 43%; however, access to care is poor. We piloted a Community-led and comprehensive hepatitis care model that included same-day HCV treatment at drug treatment centres. METHODS: Screening was conducted through venipuncture samples collected by community peer PWID, using HCV antibody (HCV Ab) rapid screening and hepatitis B virus (HBV) surface antigen (HBsAg) rapid diagnostic tests. Reactive HCV Ab samples were tested for HCV RNA using near point-of-care Truenat® HCV on Truelab® Quattro. Eligible HCV RNA-positive participants were treated on the same day using direct-acting antivirals and followed for sustained virologic response (SVR). HBsAg-negative participants received rapid HBV vaccination regimen while those positive for HBsAg were tested for DNA and referred for treatment. RESULTS: Between November 2021 and August 2022, 643 individuals were approached and 503 consented and were screened. All screened were males with history of injection drug use, and a median age of 27 years (IQR 23-32). Of the 241 (47.9%) HCV Ab reactive all underwent RNA testing and 156 (64.7%) were RNA detectable. Of those with viraemia, 155 (99.4%) were initiated on treatment with 153 (98.1%) on same day, with 2 (1.2%) HBsAg positive and waiting for HBV DNA results. Among those 153, median time from HCV Ab screening to treatment was 6 h 38 min (IQR 5 h 42 min-8 h 23 min). In total 155 (100%) completed HCV treatment, of those 148 (95.5%) completed SVR testing and 130 (87.8%) achieved SVR12. 27 (5%) participants were HBsAg-positive, 3 (11.1%) were also living with HCV viraemia; 443 (97.6%) were eligible for vaccination and 436 (98.4%) received all 3 vaccine doses. CONCLUSION: Community-led hepatitis care incorporating same day "test and treat" for HCV was feasible and effective. HBV screening identified a large proportion who were unvaccinated. Peer support extended resulted in ensuring compliance to care and treatment cascade and completing all the three doses of HBV vaccination. As the screening, diagnostics infrastructure and vaccine are available in most countries with national viral hepatitis programs also in place, our model can be adapted or replicated to progress towards global elimination targets.


Assuntos
Estudos de Viabilidade , Grupo Associado , Abuso de Substâncias por Via Intravenosa , Humanos , Masculino , Abuso de Substâncias por Via Intravenosa/complicações , Adulto , Índia/epidemiologia , Adulto Jovem , Antivirais/uso terapêutico , Hepatite C/tratamento farmacológico , Anticorpos Anti-Hepatite C/sangue , Programas de Rastreamento/métodos , Antígenos de Superfície da Hepatite B/sangue , Projetos Piloto , Resposta Viral Sustentada
7.
Lancet Reg Health West Pac ; 47: 101088, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38774422

RESUMO

Background: High prices of anticancer drugs have raised concerns due to their financial impact on patients and healthcare systems. This study aimed to assess the initial and latest list prices and clinical value of reimbursed anticancer drugs in China, Japan, and South Korea. Methods: We identified anticancer drugs newly approved by the National Medical Products Administration of China from January 2012 to June 2022, and by the Pharmaceuticals and Medical Devices Agency of Japan and the Ministry of Food and Drug Safety of South Korea up until June 2022. We compared initial and latest treatment prices between countries and assessed clinical value using patients' survival, quality of life (QoL), and European Society for Medical Oncology Magnitude of Clinical Benefit Scale (ESMO-MCBS). We calculated Spearman rank correlation coefficients of treatment prices with clinical value for individual countries and employed regression analyses to investigate whether the relationship between prices and clinical value was modified by the country setting. Findings: Our cohort included 91 anticancer drug indications, with 60 listed for reimbursement in China, 91 in Japan, and 87 in South Korea. Median treatment prices were highest in Japan, followed by South Korea, and lowest in China, both for initial prices (US$64082 vs. US$45529 vs. US$19144, p < 0.0001) and latest prices (US$50859 vs. US$31611 vs. US$18666, p < 0.0001). Over time, China (ß = -0.047, p < 0.0001) and South Korea (ß = -0.049, p < 0.0001) witnessed more significant price reductions compared to Japan (ß = -0.013, p = 0.011). The correlations between both initial and latest treatment prices and clinical value (QoL and ESMO-MCBS) were more significant and stronger in China and South Korea than in Japan, although Japan exhibited slightly stronger correlations in terms of survival compared to China and South Korea. The relationship between clinical value and treatment prices may not be modified by the country setting. Interpretation: In comparison, South Korea's list prices and their correlations with clinical value appear reasonable. Policymakers in Japan could enhance efficiency by controlling prices and aligning them with clinical value, while China would need to take substantial steps to expand anticancer drug coverage. Funding: National Natural Science Foundation of China (72374149 and 72074163), and China Center for South Asian Studies, Sichuan University.

8.
Biomed Pharmacother ; 175: 116790, 2024 May 21.
Artigo em Inglês | MEDLINE | ID: mdl-38776677

RESUMO

Diabetic cardiomyopathy (DCM) is a cardiac microvascular complication caused by metabolic disorders. It is characterized by myocardial remodeling and dysfunction. The pathogenesis of DCM is associated with abnormal cellular metabolism and organelle accumulation. Autophagy is thought to play a key role in the diabetic heart, and a growing body of research suggests that modulating autophagy may be a potential therapeutic strategy for DCM. Here, we have summarized the major signaling pathways involved in the regulation of autophagy in DCM, including Adenosine 5'-monophosphate-activated protein kinase (AMPK), mechanistic target of rapamycin (mTOR), Forkhead box subfamily O proteins (FOXOs), Sirtuins (SIRTs), and PTEN-inducible kinase 1 (PINK1)/Parkin. Given the significant role of autophagy in DCM, we further identified natural products and chemical drugs as regulators of autophagy in the treatment of DCM. This review may help to better understand the autophagy mechanism of drugs for DCM and promote their clinical application.

9.
J Am Acad Dermatol ; 2024 May 20.
Artigo em Inglês | MEDLINE | ID: mdl-38777185

RESUMO

The second part of this CME article discusses sunscreen regulation and safety considerations for humans and the environment. First, we provide an overview of the history of the United States Food and Drug Administration's regulation of sunscreen. Recent Food and Drug Administration studies clearly demonstrate that organic ultraviolet filters are systemically absorbed during routine sunscreen use, but to date there is no evidence of associated negative health effects. We also review the current evidence of sunscreen's association with vitamin D levels and frontal fibrosing alopecia, and recent concerns regarding benzene contamination. Finally, we review the possible environmental effects of ultraviolet filters, particularly coral bleaching. While climate change has been shown to be the primary driver of coral bleaching, laboratory-based studies suggest that organic ultraviolet filters represent an additional contributing factor, which led several localities to ban certain organic filters.

10.
Can Liver J ; 7(2): 257-272, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38746863

RESUMO

Background: Canada is currently on target to reach the 2030 WHO goal of HCV elimination. Continued high rates of treatment are required to meet this goal. Novel models such as Tayside, Scotland pharmacy-based HCV screening and treatment have proven successful to engage people who use drugs (PWUD) in HCV therapy with a simplified, task-shifted cascade of care. This study seeks to determine whether these successes can be replicated at community pharmacies in Victoria BC. Methods: Four pharmacies who work with PWUD and provide opioid agonist therapy were trained to provide consent and perform point-of-care HCV antibody screening. They were supported by study nurse to link to HCV RNA testing when antibody positive patients were identified, with HCV treatment offered to RNA positive participants. Qualitative interviews were conducted with five pharmacy staff to explore experiences and feasibility of pharmacists in HCV care cascade. Results: Pharmacy staff completed 200 HCV OraQuick tests between October 2020 and June 2022: 65 HCV antibody positive, 29 HCV RNA negative (25 previously treated and 4 self-cleared). Of the 26 RNA positive participants, one is awaiting treatment, 25 people have started treatment, 22 achieving SVR. Although the onset of the COVID-19 pandemic was a fundamental barrier incorporating HCV testing at pharmacies, stigma related to HCV and illicit drug use continues to impact this process. Conclusions: This innovative pharmacy-based approach found people with limited connection to primary health care to test and treat HCV but requires more training and support to be more widely feasible.

11.
Open Forum Infect Dis ; 11(5): ofae204, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38746950

RESUMO

Background: To end the HIV and hepatitis C virus (HCV) epidemics, people who use drugs (PWUD) need more opportunities for testing. While inpatient hospitalizations are an essential opportunity to test people who use drugs (PWUD) for HIV and HCV, there is limited research on rates of inpatient testing for HIV and HCV among PWUD. Methods: Eleven hospital sites were included in the study. Each site created a cohort of inpatient encounters associated with injection drug use. From these cohorts, we collected data on HCV and HIV testing rates and HIV testing consent policies from 65 276 PWUD hospitalizations. Results: Hospitals had average screening rates of 40% for HIV and 32% for HCV, with widespread heterogeneity in screening rates across facilities. State consent laws and opt-out testing policies were not associated with statistically significant differences in HIV screening rates. On average, hospitals that reflexed HCV viral load testing on HCV antibody testing did not have statistically significant differences in HCV viral load testing rates. We found suboptimal testing rates during inpatient encounters for PWUD. As treatment (HIV) and cure (HCV) are necessary to end these epidemics, we need to prioritize understanding and overcoming barriers to testing.

12.
Soc Sci Med ; 351: 116941, 2024 May 09.
Artigo em Inglês | MEDLINE | ID: mdl-38749254

RESUMO

Sexual minority male (SMM) couples tend toward behavioral similarity around cannabis use, illicit drug use, and sex with casual partners. Similarity in these behaviors may contextualize associations with relationship quality. This study tested the hypotheses that perceptions of partner (cannabis and illicit) drug use and sexual behavior would predict personal drug use and sexual behavior as well as moderate the association between relationship quality and these health outcomes. Recruitment via social networking applications yielded a sample of 5511 cisgender SMM aged 18-85 (M = 38.21, SD = 12.16) who were in a relationship with an adult cisgender male main partner. Respondents completed an online survey assessing their own cannabis use, illicit drug use, and condomless anal sex (CAS) with casual partners during the past 30 days as well as their belief about their partner's engagement in these behaviors. Three subscales of the Perceived Relationship Quality Components (PRQC) scale assessed relationship quality. Across the observed range of PRQC scores participants who reported their partner used cannabis, used other illicit drugs, and had recent CAS with a casual partner were more likely to report engaging in these activities themselves. Among participants who indicated their partner did not engage in these activities, relationship quality was negatively associated with personal cannabis use (OR = 0.985, p < 0.001), illicit drug use (OR = 0.973, p < 0.001), and CAS with casual partners (OR = 0.979, p < 0.001); meanwhile, among those who reported their partner engaged in these behaviors - relationship quality was positively associated with the odds of these behaviors (OR = 1.018, p < 0.001; OR = 1.015, p < 0.001; OR = 1.019, p = 0.015 for cannabis, illicit drug use and CAS with casual partners respectively). These findings suggest that perceptions of a partner's behavior contextualize associations between relationship quality and personal behavioral risk. Results emphasize the importance of integrating components that support relationship quality into behavioral health interventions for SMM couples and SMM in relationships.

13.
AAPS J ; 26(3): 61, 2024 May 15.
Artigo em Inglês | MEDLINE | ID: mdl-38750400

RESUMO

The aim of this study was to investigate the in-use compatibility of eight commercially available closed system transfer device brands (CSTDs) with a formulated model antibody drug conjugate (ADC). Overall, in-use simulated dosing preparation applying the CSTD systems investigated raised concerns for several product quality attributes. The incompatibilities observed were mainly associated with increased visible and subvisible particles formation as well as significant changes in holdup volumes. Visible and subvisible particles contained heterogeneous mixtures of particle classes, with the majority of subvisible particles associated with silicone oil leaching from CSTD systems during simulated dose preparation upon contact with the ADC formulation. These observations demonstrate that CSTD use may adversely impact product quality and delivered dose which could potentially lead to safety and efficacy concerns during administration. Other product quality attributes measured including turbidity, color, ADC recovery, and purity by size exclusion HPLC, did not show relevant changes. It is therefore strongly recommended to test and screen the compatibility of CSTDs with the respective ADC, in a representative in-use simulated administration setting, during early CMC development, i.e., well before the start of clinical studies, to include information about compatibility and to ensure that the CSTD listed in the manuals of preparation for clinical handling has been thoroughly assessed before human use.


Assuntos
Imunoconjugados , Imunoconjugados/química , Imunoconjugados/administração & dosagem , Composição de Medicamentos/métodos , Química Farmacêutica/métodos , Tamanho da Partícula
14.
J Forensic Sci ; 2024 May 15.
Artigo em Inglês | MEDLINE | ID: mdl-38751027

RESUMO

Two chemists employed a three-device rapid screening "toolkit" consisting of a handheld Raman spectrometer, transportable mass spectrometer, and portable Fourier transform infrared (FT-IR) spectrometer at an international mail facility (IMF) satellite laboratory to examine unknown (unlabeled/mislabeled) products for the presence of active pharmaceutical ingredients (APIs). Phase I of this project previously demonstrated that this toolkit was the most effective collection of instruments for identifying APIs in product types collected at IMFs during a nationwide mail blitz and Phase II of this project previously demonstrated that results generated using the toolkit during a satellite laboratory pilot program were as reliable as those generated by a full-service library when two or more of these instruments identify an API. This study (Phase III) described the results of the satellite laboratory toolkit during production mode and encompassed the period ranging from June 2021 through December 2022. During this study, a total of 858 products were examined on-site at the IMF. The satellite laboratory yielded conclusive results for 726 (84.6%) products, which were used to support regulatory action, and identified 132 (15.4%) products that required additional full-service laboratory analyses due to inconclusive results. The satellite and full-service laboratory verified/confirmed at least one API/related substance in 617 (71.9%) products. A total of 709 APIs/related substances were found in the 617 products, and 202 of these 709 compounds were unique/different. Overall, during Phases I through III of this program, 350 different substances have been identified in products collected at IMFs.

15.
J Oncol Pharm Pract ; : 10781552241250010, 2024 May 15.
Artigo em Inglês | MEDLINE | ID: mdl-38751088

RESUMO

INTRODUCTION: Due to the high toxicity of antineoplastic drugs, handling their packaging could lead to the chemical contamination of hospital environments and exposure risks to healthcare professionals and patients. This study aimed to assess the contamination of two main surfaces: the outer primary packaging of oral antineoplastic drug formulations (n = 36) available on the Swiss market and the surface of secondary packaging of injectable antineoplastic drug preparations (n = 60) produced by the pharmacy of a Swiss hospital and carriers used for transport (n = 5). METHODS: Samples were collected using a validated wipe sampling method. The simultaneous analysis of 24 antineoplastic drugs: 5-fluorouracil, busulfan, carboplatin, cyclophosphamide, cytarabine, dacarbazine, daunorubicin, docetaxel, doxorubicin, epirubicin, etoposide, gemcitabine, idarubicin, ifosfamide, irinotecan, methotrexate, oxaliplatin, paclitaxel, pemetrexed, raltitrexed, topotecan, treosulfan, vinblastine, vincristine) and 1 antiviral compound (ganciclovir) was performed by UHPLC-MS/MS. RESULTS: A total of 58% and 90% positive results were obtained for the primary packaging of oral chemotherapies and for the secondary packaging of injectable preparations, respectively. The highest quantities found on the primary packaging for oral chemotherapies and on the surface of closed leak-proof bags were 111 ng of methotrexate and 19 ng of gemcitabine, respectively. Gemcitabine (69%) and cyclophosphamide (38%) were the two most common contaminants found on the packaging of injectable preparations and carriers, regardless of the chemotherapy preparations. CONCLUSION: Trace levels (ng) of antineoplastic drugs can be found on most surfaces of all evaluated pharmaceutical products. Thus, suitable personal protective equipment is mandatory for healthcare professional handling antineoplastic drugs.

16.
J Neuromuscul Dis ; 2024 May 14.
Artigo em Inglês | MEDLINE | ID: mdl-38759021

RESUMO

Background: More than 200 clinical trials have been performed worldwide in ALS so far, but no agents with substantial efficacy on disease progression have been found. Objective: To describe the methodological quality of all clinical trials performed in ALS and published before December 31, 2022. Methods: We conducted a systematic review following the Preferred Reporting Items for Systematic Reviews and Meta Analyses. Results: 213 trials were included. 47.4% manuscripts described preclinical study evaluation, with a positive effect in all. 67.6% of trials were conducted with a parallel-arm design, while 12.7% were cross-over studies; 77% were randomized, while in 5.6% historical-controls were used for comparison. 70% of trials were double blind. Participant inclusion allowed forced vital capacity (or corresponding slow vital capacity)<50% in 15% cases, between 55-65% in 21.6%, between 70-80% in 14.1% reports, and 49.3% of the evaluated manuscripts did not provide a minimum value for respiratory capacity at inclusion. Disease duration was <  6-months in 6 studies, 7-36 months in 68, 37-60 months in 24, 8 trials requested more than 1-month of disease duration, while in 107 reports a disease duration was not described. Dropout rate was ≥20% in 30.5% trials, while it was not reported for 8.5% . Conclusion: The methodological quality of the included studies was highly variable. Major issues to be addressed in future ALS clinical trials include: the requirement for standard animal toxicology and phase I studies, the resource-intensive nature of phase II-III studies, adequate study methodology and design, a good results reporting.

17.
J Inorg Biochem ; 257: 112600, 2024 May 10.
Artigo em Inglês | MEDLINE | ID: mdl-38759261

RESUMO

Rhenium complexes show great promise as anticancer drug candidates. Specifically, compounds with a Re(CO)3(NN)(py)+ core in their architecture have shown cytotoxicity equal to or greater than that of well-established anticancer drugs based on platinum or organic molecules. This study aimed to evaluate how the strength of the interaction between rhenium(I) tricarbonyl complexes fac-[Re(CO)3(NN)(py)]+, NN = 1,10-phenanthroline (phen), dipyrido[3,2-f:2',3'-h]quinoxaline (dpq) or dipyrido[3,2-a:2'3'-c]phenazine (dppz) and biomolecules (protein, lipid and DNA) impacted the corresponding cytotoxic effect in cells. Results showed that fac-[Re(CO)3(dppz)(py)]+ has higher Log Po/w and binding constant (Kb) with biomolecules (protein, lipid and DNA) compared to complexes of fac-[Re(CO)3(phen)(py)]+ and fac-[Re(CO)3(dpq)(py)]+. As consequence, fac-[Re(CO)3(dppz)(py)]+ exhibited the highest cytotoxicity (IC50 = 8.5 µM for HeLa cells) for fac-[Re(CO)3(dppz)(py)]+ among the studied compounds (IC50 > 15 µM). This highest cytotoxicity of fac-[Re(CO)3(dppz)(py)]+ are probably related to its lipophilicity, higher permeation of the lipid bilayers of cells, and a more potent interaction of the dppz ligand with biomolecules (protein and DNA). Our findings open novel avenues for rational drug design and highlight the importance of considering the chemical structures of rhenium complexes that strongly interact with biomolecules (proteins, lipids, and DNA).

18.
Exp Parasitol ; : 108787, 2024 May 15.
Artigo em Inglês | MEDLINE | ID: mdl-38759776

RESUMO

New affordable drugs are needed for the treatment of infection with the protozoan parasite Trypanosoma cruzi responsible for the Chagas disease (CD). Only two old drugs are currently available, nifurtimox and benznidazole (Bz) but they exhibit unwanted side effects and display a weak activity in the late chronic phase of the disease. In this context, we evaluated the activity of a series of aryl-pyrazolone derivatives against T cruzi, using both bloodstream trypomastigote and intracellular amastigote forms of the parasite. The test compounds originate from a series of anticancer agents targeting the immune checkpoint ligand PD-L1 and bear an analogy with known anti-trypanosomal pyrazolones. A first group of 6 phenyl-pyrazolones was tested, revealing the activity of a single pyridyl-pyrazolone derivative. Then a second group of 8 compounds with a common pyridyl-pyrazolone core was evaluated. The in vitro testing process led to the identification of two non-cytotoxic and highly potent molecules against the intracellular form of T. cruzi, with an activity comparable to Bz. Moreover, one compound revealed an activity largely superior to that of Bz against bloodstream trypomastigotes, while being non-cytotoxic (selectivity index >1000). Unfortunately, the compound showed little activity in vivo, most likely due to its very limited plasma stability. However, the study opens novel perspectives for the design of new anti-trypanosomal products and the mechanism of action of the compounds is discussed.

19.
Hum Vaccin Immunother ; 20(1): 2349319, 2024 Dec 31.
Artigo em Inglês | MEDLINE | ID: mdl-38755111

RESUMO

Individuals with Inflammatory Bowel Disease (IBD) are more susceptible to experiencing severe complications of COVID-19 if infected. Nevertheless, sub-optimal immunization rates have been reported among these patients. Our study aims to assess COVID-19 VH among a global population of patients with IBD and to investigate the role of healthcare professionals, particularly gastroenterologists, in promoting immunization. Twenty-six studies were systematically selected from scientific articles in the MEDLINE/PubMed, WoK, and Scopus databases from January 1, 2020, to September 15, 2023. The pooled prevalence of COVID-19 VH was 27.2% (95%CI = 20.6-34.2%). A significant relationship was evidenced between COVID-19 vaccine compliance and receiving advice from gastroenterologists or healthcare providers (OR = 2.77; 95%CI = 1.79-4.30). By leveraging their knowledge of IBD, familiarity with patient histories, and trusted patient-doctor relationships, gastroenterologists are pivotal in promoting vaccination. This patient-centered care is crucial in increasing vaccine acceptance among individuals with IBD, contributing to better public health outcomes.


Assuntos
Vacinas contra COVID-19 , COVID-19 , Gastroenterologistas , Pessoal de Saúde , Doenças Inflamatórias Intestinais , Vacinação , Humanos , Doenças Inflamatórias Intestinais/imunologia , COVID-19/prevenção & controle , Pessoal de Saúde/estatística & dados numéricos , Vacinas contra COVID-19/administração & dosagem , Vacinas contra COVID-19/imunologia , Gastroenterologistas/estatística & dados numéricos , Vacinação/estatística & dados numéricos , SARS-CoV-2/imunologia
20.
Curr Med Chem ; 2024 May 16.
Artigo em Inglês | MEDLINE | ID: mdl-38757325

RESUMO

BACKGROUND: Integrated Stress Response Inhibitor (ISRIB) works by inhibiting the integrated stress response, a cellular pathway involved in the regulation of protein synthesis during stress conditions. Conditions that have been studied or suggested as potential candidates for treatment with ISRIB include neurological and metabolic disorders, cognitive impairment, viral infections, and cancer. OBJECTIVE: The study aimed to discuss the challenges related to specificity, long-term safety, and disease-specific considerations crucial for realizing the full potential of ISRIB. METHOD: A narrative review of the literature has been conducted to delve into ISRIB's chemistry, mechanisms of action, disease-specific considerations, and long-term safety implications. RESULTS: While ISRIB has shown promising results in preclinical studies, more research is needed to determine its safety and effectiveness in human patients. Clinical trials are required to validate its therapeutic potential for various conditions. Despite having been proposed a decade ago, news of its clinical trials has been circulated only recently, without any published information yet and with rumors that its efficacy vs. safety profile may be compromised by side effects. CONCLUSION: While ISRIB offers exciting prospects for a range of biomedical applications, addressing challenges related to specificity, disease-specific considerations, and importantly long-term safety, is crucial for realizing its full potential.

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