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1.
Neurocrit Care ; 2024 May 13.
Artigo em Inglês | MEDLINE | ID: mdl-38740704

RESUMO

BACKGROUND: Partial pressure of carbon dioxide (PaCO2) is generally known to influence outcome in patients with traumatic brain injury (TBI) at normal altitudes. Less is known about specific relationships of PaCO2 levels and clinical outcomes at high altitudes. METHODS: This is a prospective single-center cohort of consecutive patients with TBI admitted to a trauma center located at 2600 m above sea level. An unfavorable outcome was defined as a Glasgow Outcome Scale-Extended (GOSE) score < 4 at the 6-month follow-up. RESULTS: We had a total of 81 patients with complete data, 80% (65/81) were men, and the median (interquartile range) age was 36 (25-50) years. Median Glasgow Coma Scale (GCS) score on admission was 9 (6-14); 49% (40/81) of patients had severe TBI (GCS 3-8), 32% (26/81) had moderate TBI (GCS 12-9), and 18% (15/81) had mild TBI (GCS 13-15). The median (interquartile range) Abbreviated Injury Score of the head (AISh) was 3 (2-4). The frequency of an unfavorable outcome (GOSE < 4) was 30% (25/81), the median GOSE was 4 (2-5), and the median 6-month mortality rate was 24% (20/81). Comparison between patients with favorable and unfavorable outcomes revealed that those with unfavorable outcome were older, (median age 49 [30-72] vs. 29 [22-41] years, P < 0.01), had lower admission GCS scores (6 [4-8] vs. 13 [8-15], P < 0.01), had higher AISh scores (4 [4-4] vs. 3 [2-4], P < 0.01), had higher Acute Physiology and Chronic Health disease Classification System II scores (17 [15-23] vs. 10 [6-14], P < 0.01), had higher Charlson scores (0 [0-2] vs. 0 [0-0], P < 0.01), and had higher PaCO2 levels (mean 35 ± 8 vs. 32 ± 6 mm Hg, P < 0.01). In a multivariate analysis, age (odds ratio [OR] 1.14, 95% confidence interval [CI] 1.1-1.30, P < 0.01), AISh (OR 4.7, 95% CI 1.55-21.0, P < 0.05), and PaCO2 levels (OR 1.23, 95% CI 1.10-1.53, P < 0.05) were significantly associated with the unfavorable outcomes. When applying the same analysis to the subgroup on mechanical ventilation, AISh (OR 5.4, 95% CI 1.61-28.5, P = 0.017) and PaCO2 levels (OR 1.36, 95% CI 1.13-1.78, P = 0.015) remained significantly associated with the unfavorable outcome. CONCLUSIONS: Higher PaCO2 levels are associated with an unfavorable outcome in ventilated patients with TBI. These results underscore the importance of PaCO2 levels in patients with TBI and whether it should be adjusted for populations living at higher altitudes.

2.
BMJ Open ; 14(1): e078437, 2024 01 22.
Artigo em Inglês | MEDLINE | ID: mdl-38262644

RESUMO

OBJECTIVES: To determine cannabis use patterns, the predictive sociodemographic correlates of driving under the influence of cannabis (DUIC) and the association between risk perception and cannabis dependence among vehicle drivers in Jamaica. DESIGN: Secondary data analysis. SETTING: Used the Jamaica National Drug Prevalence Survey 2016 dataset. PARTICIPANTS: 1060 vehicle drivers extracted from the population sample of 4623. PRIMARY AND SECONDARY OUTCOME MEASURES: Analysis used Pearson's χ2 test and logistic regression. ORs and 95% CIs were recorded. A p<0.05 was considered statistically significant. RESULTS: More than 10% of Jamaican drivers admitted to DUIC in the past year. Approximately 43.3% of drivers who currently use cannabis reported DUIC only. Evidently, 86.8% of drivers who DUIC were heavy cannabis users. Approximately 30% of drivers with moderate to high-risk perception of smoking cannabis sometimes or often were dependent on cannabis. Notwithstanding, drivers with no to low-risk perception of smoking cannabis sometimes or often were significantly likelier to be dependent (p<0.001 and p<0.001, respectively). Logistic regression highlighted male drivers (OR 4.14, 95% CI 1.59 to 14.20, p=0.009) that were 34 years and under (OR 2.97, 95% CI 1.71 to 5.29, p<0.001) and were the head of the household (OR 2.22, 95% CI 1.10 to 4.75, p=0.031) and operated a machine as part of their job (OR 1.87, 95% CI 1.09 to 3.24, p=0.023) were more likely to DUIC, while those who were married (OR 0.42, 95% CI 0.22 to 0.74, p=0.004) and had achieved a tertiary-level education (OR 0.26, 95% CI 0.06 to 0.76, p=0.031) were less likely. CONCLUSIONS: Two in five Jamaican drivers, who currently smoke cannabis, drive under its influence, with over 85% engaging in heavy use. Public health implications necessitate policy-makers consider mobile roadside drug testing and amending drug-driving laws to meet international standards.


Assuntos
Cannabis , Dirigir sob a Influência , Abuso de Maconha , Fumar Maconha , Masculino , Humanos , Jamaica , Agonistas de Receptores de Canabinoides
3.
Angiology ; 75(3): 240-248, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-36825521

RESUMO

Peripheral artery disease (PAD) is associated with high rates of readmission following endovascular interventions and contributes to a significant hospital readmission burden. Quality metrics like hospital readmissions affect hospital performance, but must adjust to local trends. Our primary goal was to evaluate risk factors and readmission rates post-percutaneous peripheral intervention in a US-Mexico border city, at a single tertiary university hospital. We performed a retrospective review of patients with PAD undergoing first time peripheral intervention from July 2015 to June 2020. Among 212 patients, 58% were readmitted with median 235-day follow-up (inter-quartile range (IQR) 42-924); 35.3% of readmissions occurred within 30 days, and 30.2% of those were within 7 days. Median time to readmission was 62 days. Active smokers had 84% higher risk of readmission (hazard ratio (HR) 1.84, 95% CI 1.23-2.74, P < .01). Other significant factors noted were insurance status-Medicaid or uninsured (HR 1.94, 95% CI 1.22-3.09), prior amputation (HR 1.69, 95% CI 1.13-2.54), heart failure, both preserved (HR 4.35, 95% CI 2.07-9.16) and reduced ejection fraction (HR 1.88, 95% CI 1.14-3.10). Below the knee, interventions were less likely to be readmitted (adjusted HR .64, 95% CI 0.42-.96). Readmission rates were unrelated to medication adherence.


Assuntos
Readmissão do Paciente , Doença Arterial Periférica , Estados Unidos , Humanos , México/epidemiologia , Resultado do Tratamento , Doença Arterial Periférica/terapia , Fatores de Risco , Hospitais , Estudos Retrospectivos
4.
BMJ Open ; 13(11): e076111, 2023 11 14.
Artigo em Inglês | MEDLINE | ID: mdl-37963690

RESUMO

OBJECTIVES: This study aimed to examine concurrent polysubstance use of alcohol, tobacco and marijuana and determine correlations with access to marijuana, friend and familial drug use habits, risk perception and the age of initiation associated with the singular use of these substances. DESIGN: A secondary data analysis. SETTING: Used the Jamaica National Drug Prevalence Survey 2016 dataset. PARTICIPANTS: Involved the entire dataset comprising 4623 randomly selected respondents between 12 and 65 years old. OUTCOME MEASURES: Primary outcome: concurrent polysubstance use recorded as using two or more of alcohol, tobacco and marijuana. Predictor variables include risk perception and age of initiation of singular alcohol, tobacco and marijuana use, ease of marijuana access and family and friend alcohol and illegal drug use. RESULTS: Approximately 58%-66% of respondents commenced singular alcohol, tobacco or marijuana use under 17. Participants commencing marijuana use at 11 years and under and between 12 and 17 were 3.346 and 4.560 times more likely to report past month concurrent polysubstance use (p=0.030 and p<0.001). Respondents who did not believe that smoking tobacco sometimes (p=0.049), and smoking marijuana sometimes and often was harmful, had increased odds of concurrent polysubstance use (p=0.047 and p<0.001, respectively). Respondents who indicated access to marijuana as easy were significantly more likely to report past month concurrent polysubstance use compared with those who reported access as difficult (p=0.002). Participants who indicated that friends or family members get drunk and take illegal drugs were associated with 1.722 and 1.864 increased odds of reporting past month concurrent polysubstance use (p=0.004 and p=0.017, respectively). CONCLUSIONS: Decreased perceived risk, childhood and adolescent age of initiation and easy access to marijuana were significantly associated with polysubstance use among Jamaicans. The influence of friends and family members' drug and alcohol use behaviours on individuals developing polysubstance use habits further endorses the need for interventions.


Assuntos
Cannabis , Fumar Maconha , Transtornos Relacionados ao Uso de Substâncias , Adolescente , Humanos , Criança , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Idoso , Consumo de Bebidas Alcoólicas/epidemiologia , Consumo de Bebidas Alcoólicas/psicologia , Jamaica/epidemiologia , Fumar Maconha/epidemiologia , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Transtornos Relacionados ao Uso de Substâncias/psicologia , Etanol
5.
BMJ Open ; 13(7): e073529, 2023 07 12.
Artigo em Inglês | MEDLINE | ID: mdl-37438070

RESUMO

OBJECTIVES: To determine the prevalence of alcohol use patterns, sociodemographic factors and risk of alcohol dependence among vehicle drivers in Jamaica. DESIGN: A secondary data analysis. SETTING: This study was conducted using the Jamaica National Drug Prevalence Survey 2016 dataset. PARTICIPANTS: This included 1060 vehicle drivers derived from the population sample of 4623. The participants from each household were randomly selected as the respondent for the survey. PRIMARY AND SECONDARY OUTCOME MEASURES: Alcohol use and dependence were measured using the Alcohol Use Disorders Identification Test questionnaire. Driving under the influence of alcohol (DUIA) was assessed by questions regarding its use in the past 12 months. The analysis involved the use of Pearson's χ2 test and logistic regression. RESULTS: 75% of Jamaicans reported lifetime alcohol use. Approximately 65% of drivers indicated that they currently drink alcohol. 18% of drivers who currently drink alcohol admitted to DUIA. Reportedly, 54.5% of these drivers were alcohol binge drinkers, with 41.5% also driving under the influence of cannabis. The bivariate analysis demonstrated that DUIA was higher among Christian participants and those who worked in non-machine operator jobs (p=0.002 and p=0.008, respectively). Vehicle drivers altogether and drivers who drive under the influence of alcohol had significant associations with hazardous drinking (p=0.011 and p<0.001, respectively). Logistic regressions highlighted drivers 34 years and under (p=0.012), male drivers (p=0.002) and the head of the household (p=0.050) were 1.82, 3.30 and 1.86 times more likely, respectively, to report driving under the influence of alcohol in the past year. CONCLUSIONS: The prevalence of alcohol use among Jamaica's population and vehicle drivers is high. That one in five drivers, who currently consume alcohol, also admits to driving under the influence suggests the urgent need for mitigation strategies and legislative action as part of a preventative effort to reduce drunk driving.


Assuntos
Alcoolismo , Dirigir sob a Influência , Masculino , Humanos , Jamaica/epidemiologia , Etanol , Consumo de Bebidas Alcoólicas/epidemiologia
7.
J Vasc Surg Cases Innov Tech ; 8(4): 674-677, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36325315

RESUMO

We have presented the case of a symptomatic, primarily infected aortic pseudoaneurysm treated with endovascular stent graft exclusion and adjunctive use of a long-acting biocomposite antibiotic material injected directly into the pseudoaneurysm sac. We have described preparation of the biocomposite antibiotic material and the catheter-directed delivery technique in detail. Although the use of long-acting antibiotic materials such as antibiotic beads has been well described when performing open surgery in an infected field, the application of these materials in endovascular procedures has been less certain. The techniques we have described have the potential to promote field sterilization in a minimally invasive manner for patients with aortic infections who could be poor candidates for open surgery.

8.
BMC Psychiatry ; 22(1): 513, 2022 07 29.
Artigo em Inglês | MEDLINE | ID: mdl-35902836

RESUMO

BACKGROUND: In Latin America and the Caribbean, there is a dearth of research exploring polysubstance use. This study aims to determine the prevalence, varying combinations and associated sociodemographic characteristics of polysubstance use in Jamaica. METHODS: This study involved a secondary data analysis of the Jamaica National Drug Prevalence Survey 2016 dataset where 4,623 participants between the age of 12 and 65 years from each household were randomly selected as respondents. Statistical analysis was performed to determine the prevalence and the sociodemographic correlates of polysubstance use among Jamaicans. RESULTS: 19.6% of respondents used two or more drugs in their lifetime. Of this amount 68.7% reported past year use and 61.9% reported past month use. Bivariate analyses reported polysubstance use was statistically significantly higher amongst males (U = 54,579, p = 0.000), those living in rural areas (U = 91,892, p = 0.003), non-Christian (U = 89,514, p = 0.014), and married persons (U = 74,672, p = 0.000). Past month polysubstance use was statistically significantly higher among employed persons than unemployed persons were (U = 81,342, p = 0.001). Surprisingly, there was a lack of significant differences between education level, household income and past month concurrent polysubstance use (p = 0.609; p = 0.115 respectively). Logistic regression model indicated males were 3.076 times more likely than females to report past month polysubstance use than females. Also, when compared to those 55-65 years old, participants 35-54 years were 2.922 times more likely and those 18-34 years were 4.914 times more likely to report past month polysubstance use. Additionally, those living in rural areas were 1.508 times more likely than participants living in urban areas to report past month polysubstance use. As it relates to occupational status, when compared to armed forces, skilled workers were 4.328 times more likely and unskilled workers were 7.146 times more likely to report past month polysubstance use. CONCLUSIONS: One in five Jamaicans identified as polysubstance users, predominated by marijuana as the most common factor amongst the polysubstance combinations examined, signalling the need for early marijuana interventions.


Assuntos
Transtornos Relacionados ao Uso de Substâncias , Adolescente , Adulto , Idoso , Criança , Etnicidade , Feminino , Humanos , Jamaica/epidemiologia , Masculino , Pessoa de Meia-Idade , Prevalência , Fatores Sociodemográficos , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Adulto Jovem
9.
Pan Afr Med J ; 43: 185, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36915416

RESUMO

Introduction: tobacco smoking remains a significant threat to public health. This paper sought to examine the prevalence, perceived risk and the associated factors of current tobacco use amongst Jamaican adults. Methods: this study is a secondary data analysis of the Jamaican National Household Survey 2016. The data for this study was extracted from a pre-coded questionnaire using a standardized extraction sheet. Adults were categorized into young adults (18-35), Middle-aged adults (36-55) and Older adults (56 and older) groups. Statistical analysis was performed to determine the prevalence, perceived risk and associated factors of tobacco use among Jamaican adults. Results: young adults had the lowest lifetime prevalence of tobacco smoking at 23% yet the highest percentage of current users at 48.3% (p=0.000), with gender being the only significant associated factor. Males were 2.565 times more likely to be current tobacco users than females (p < 0.01). In middle-aged adults, and older adults the highest predictive factor was risk perception. Current tobacco use was 3.375 times higher in middle-aged adults (p=0.044) and 2.815 times higher in older adults with low risk perception (p=0.025). Conclusion: four out of 10 Jamaican adult tobacco users are current users. Young adults had significantly fewer mitigating factors to tobacco usage despite being the most prevalent group for current use. Significantly, perception of risk impacted current usage in middle-aged and older adults but not in younger adults. Innovative and targeted approaches are needed in young adults such as incorporating the health and wellness promotion model with tobacco emphasis.


Assuntos
Produtos do Tabaco , Tabagismo , Masculino , Feminino , Adulto Jovem , Pessoa de Meia-Idade , Humanos , Idoso , Jamaica/epidemiologia , Prevalência , Uso de Tabaco/epidemiologia , Nicotiana
10.
Pediatr Emerg Care ; 38(1): e321-e328, 2022 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-33136832

RESUMO

OBJECTIVE: Pediatric procedural sedation (PPS) is used to maintain children's safety, comfort, and cooperation during emergency department procedures. Our objective was to gather data describing PPS practice across the United States to highlight the variations in practice and adherence to National Guidelines. METHODS: We performed a nationwide survey of PPS practitioners using a secure web-based software program. A link to the survey was sent to all subscribers of a pediatric emergency medicine listserv. We collected participant demographics, their PPS approach for personnel, monitoring, equipment, postsedation observation, and side effects, as well as providers' medication preferences for 3 common PPS scenarios. RESULTS: We received 211 completed surveys from 34 States. There were 20.6% respondents that were based in New York, 83.4% were pediatric emergency medicine attendings, and 91.7% were based in the United States teaching hospitals. Our participants learned PPS by various methods, most commonly: observation of at least 10 PPS (29.9%); self-study (24.8%); and classroom lectures (24.5%). Seventy-seven percent of our participants reported no body mass index cutoff to do PPS. There were 31.5% of our participants that observe children after PPS up to 1 hour, 30.1% up to 2 hours. There were 67.7% of the PPS providers that were a separate person from the practitioner doing the procedure, and 98.2% required a separate trained nurse to be present for monitoring. There were 92.6% of PPS providers that measure end-tidal carbon dioxide (ETCO2) during the sedation. Most PPS providers reported having no reversal agents (71.4%) and no defibrillator (65.9%) at bedside. For the abscess drainage scenario, 22% of participants preferred local anesthetic alone, and 22.5% preferred utilizing local anesthetic in combination with intravenous ketamine. For a forearm fracture reduction scenario, 62.8% of participants would choose intravenous ketamine alone. For the laceration repair scenario, the most favored drug combination was local anesthesia + intranasal midazolam by 39.8% of participants. CONCLUSIONS: Our study demonstrates a wide variability in several aspects of PPS and low adherence to national PPS guidelines.


Assuntos
Ketamina , Medicina de Emergência Pediátrica , Criança , Sedação Consciente , Serviço Hospitalar de Emergência , Humanos , Midazolam , Estados Unidos
12.
Dental Press J Orthod ; 26(3): e21ins3, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34190772

RESUMO

INTRODUCTION: A pandemic was declared by the World Health Organization on 30th January 2020, the coronavirus disease (COVID-19) emerged, and led to standstill of Dentistry and Orthodontics. DESCRIPTION: The COVID-19 is a very multivariant disease. It affects in many different ways; the most reported symptoms resemble very much to that of a seasonal flu. Patients feel rising fever, dry cough and shortness of breath. There are two ways to handle them, the first being remotely guiding and helping them with aid of telecommunication, and second you can prepare the clinic by following all sanitization protocols and keep the clinic open only for such patients. Usage of Environment Protection agents, N95 masks, PPE kits and HEPA filters are some of the basic things to go about. CONCLUSION: With the non-stop change of scenario of the COVID-19, meticulous monitoring of the local situation and one eye on the latest instructions given by the WHO and Health ministry should be followed.


Assuntos
COVID-19 , Ortodontia , Humanos , Pandemias , SARS-CoV-2
13.
Rev. Bras. Ortop. (Online) ; 56(3): 368-371, May-June 2021. tab, graf
Artigo em Inglês | LILACS | ID: biblio-1288671

RESUMO

Abstract Objective To determine the modifiable risk factors associated with severity of plantar fasciitis and to formulate an objective scoring system for indexing plantar fasciitis in the non-athletic population. Methods This was a prospective observational study. The main outcome measure was the association of a modifiable risk factor, which was measured with the Pearson coefficient (R-value) and the level of significance, which was kept as p < 0.05. Result In a sample size of 50 patients, the body mass index (BMI) and ill-cushioned shoes were found to be significantly associated with pain in plantar fasciitis. All the other risk factors were either non-modifiable or had no significant association. Conclusion Based on available data and further interpretation, an index was be formulated, named as Ranjeet-Kunal Index for Scoring Plantar fasciitis (RKISP), which can be successfully used for not only grading plantar fasciitis but also prognosticating the conservative management of the same, thus deciding the modality of treatment.


Resumo Objetivo Determinar os fatores de risco modificáveis associados à gravidade da fasciíte plantar e formular um sistema objetivo de pontuação para indexação da doença na população não atlética. Métodos Estudo observacional prospectivo. A principal medida de desfecho foi a associação de um fator de risco modificável, mensurada pelo valor de R (coeficiente de Pearson) e pelo nível de significância de p < 0,05. Resultados Em uma amostra de 50 pacientes, o índice de massa corporal (IMC) e calçados com amortecimento inadequado foram associados de maneira significativa à dor na fasciíte plantar. Todos os demais fatores de risco eram não modificáveis ou não apresentaram associação significativa. Conclusão Com base nos dados à disposição e sua interpretação, um índice, denominado Índice de Ranjeet-Kunal de Pontuação da Fasciíte Plantar (RKISP, em inglês) , foi formulado e utilizado com sucesso não apenas na classificação da fasciíte plantar, mas também na determinação do prognóstico de seu tratamento conservativo, auxiliando a escolha da modalidade terapêutica.


Assuntos
Humanos , Fatores de Risco , Fasciíte Plantar , Dor Crônica , Tratamento Conservador
14.
Sci Total Environ ; 782: 146681, 2021 Aug 15.
Artigo em Inglês | MEDLINE | ID: mdl-33836380

RESUMO

The first Covid-19 patient in India was reported on January 30, 2020 at the state of Kerala. The patient number rose to three by February 3, 2020. In the month of March 2020, the transmissions started to increase when the people started to return back to India from the Covid-19 affected countries. On March 12, a 76-year-old man having a travel history to Saudi Arabia was the first reported fatality in India due to Covid 19. Then for the prevention of the propagation of Covid, the Indian government declared a state of health emergency and strict counter measures were taken, including locking down of cities, prohibiting almost all avoidable activities and restricting population's mobility. From March 24, 2020 due to the complete lockdown in the country, human activities were heavily restricted in the whole geographical regions of India. This pandemic lockdown eventually serves as an opportunity to observe the background concentrations of pollutants in the atmosphere. The PM 2.5 distribution can affect human health and to overcome this problem, setting up of regulation for PM is necessary. In the present study Probability density functions (PDF) method have been utilised for the investigation of PM 2.5 pollutant data distribution of five countries namely, India, China, France, Brazil and United States of America (USA) for their respective lockdown period of 2020 and corresponding same period of 2019. A detailed study has been done for India, and for that purpose India has been divided into three regions (Central India, Coastal India and Indo-Gangetic Plain (IGP)) on the basis of different meteorological conditions. PM 2.5 concentration for hourly basis has been analysed for the lockdown period 24th March to 15th June 2020 and compared with the PM 2.5 concentration of previous year 2019 for the same time period. To understand the effect of lockdown in PM 2.5 emission in India, which will give us an idea about the background concentration, PDFs (probability density functions) have also been generated for the whole year from 2015 to 2019. The "goodness-of-fit" of the probability density functions, to the data, was assessed, using various statistical indices (Chi-square test). Results show that the PM 2.5 reduction during the lockdown period of 2020 as compared to the same period of 2019 is sufficiently large. This study will give a certain degree of idea to the regulatory bodies on planning and implementation of strict air quality control plans.


Assuntos
Poluentes Atmosféricos , Poluição do Ar , COVID-19 , Idoso , Poluentes Atmosféricos/análise , Poluição do Ar/análise , Brasil , China , Cidades , Controle de Doenças Transmissíveis , Monitoramento Ambiental , França , Humanos , Índia , Material Particulado/análise , Probabilidade , SARS-CoV-2 , Arábia Saudita
15.
J Fungi (Basel) ; 7(2)2021 Feb 12.
Artigo em Inglês | MEDLINE | ID: mdl-33673204

RESUMO

Pathogenic microbes are exposed to a number of potential DNA-damaging stimuli during interaction with the host immune system. Microbial survival in this situation depends on a fine balance between the maintenance of DNA integrity and the adaptability provided by mutations. In this study, we investigated the association of the DNA repair response with the virulence of Cryptococcus neoformans, a basidiomycete that causes life-threatening meningoencephalitis in immunocompromised individuals. We focused on the characterization of C. neoformansAPN1 and APN2 putative genes, aiming to evaluate a possible role of the predicted Apurinic/apyrimidinic (AP) endonucleases 1 and 2 of the base excision repair (BER) pathway on C. neoformans response to stress conditions and virulence. Our results demonstrated the involvement of the putative AP-endonucleases Apn1 and Apn2 in the cellular response to DNA damage induced by alkylation and by UV radiation, in melanin production, in tolerance to drugs and in virulence of C. neoformans in vivo. We also pointed out the potential use of DNA repair inhibitor methoxy-amine in combination with conventional antifungal drugs, for the development of new therapeutic approaches against this human fungal pathogen. This work provides new information about the DNA damage response of the highly important pathogenic fungus C. neoformans.

16.
J Photochem Photobiol B ; 216: 112131, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-33517071

RESUMO

Cryptococcus is a globally distributed fungal pathogen that primarily afflicts immunocompromised individuals. The therapeutic options are limited and include mostly amphotericin B or fluconazole, alone or in combination. The extensive usage of antifungals allowed the selection of resistant pathogens posing threats to global public health. Histone deacetylase genes are involved in Cryptococcus virulence, and in pathogenicity and resistance to azoles in Candida albicans. Aiming to assess whether histone deacetylase genes are involved in antifungal response and in synergistic drug interactions, we evaluated the activity of amphotericin B, fluconazole, sulfamethoxazole, sodium butyrate or trichostatin A (histone deacetylase inhibitors), and hydralazine or 5- aza-2'-deoxycytidine (DNA methyl-transferase inhibitors) against different Cryptococcus neoformans strains, C. neoformans histone deacetylase null mutants and Cryptococcus gattii NIH198. The drugs were employed alone or in different combinations. Fungal growth after photodynamic therapy mediated by an aluminium phthalocyanine chloride nanoemulsion, alone or in combination with the aforementioned drugs, was assessed for the C. neoformans HDAC null mutant strains. Our results showed that fluconazole was synergistic with sodium butyrate or with trichostatin A for the hda1Δ/hos2Δ double mutant strain. Sulfamethoxazole was synergistic with sodium butyrate or with hydralazine also for hda1Δ/hos2Δ. These results clearly indicate a link between HDAC impairment and drug sensitivity. Photodynamic therapy efficacy on controlling the growth of the HDAC mutant strains was increased by amphotericin B, fluconazole, sodium butyrate or hydralazine. This is the first study in Cryptococcus highlighting the combined effects of antifungal drugs, histone deacetylase or DNA methyltransferase inhibitors and photodynamic therapy in vitro.


Assuntos
Antifúngicos/metabolismo , Proteínas de Bactérias/genética , Criptococose/tratamento farmacológico , Cryptococcus neoformans/enzimologia , Epigênese Genética/efeitos dos fármacos , Histona Desacetilases/genética , Indóis/metabolismo , Compostos Organometálicos/metabolismo , Fotoquimioterapia/métodos , Anfotericina B/química , Ácido Butírico/química , Sinergismo Farmacológico , Emulsões/química , Fluconazol/química , Regulação Bacteriana da Expressão Gênica/efeitos dos fármacos , Humanos , Ácidos Hidroxâmicos/química , Indóis/farmacologia , Nanopartículas/química , Compostos Organometálicos/farmacologia , Sulfametoxazol/química
17.
J Pediatr ; 230: 55-61.e4, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-32971146

RESUMO

OBJECTIVE: To describe the clinical features, therapeutic interventions, and patient outcomes of gastrointestinal (GI) hemorrhage in individuals with a telomere biology disorder, including dyskeratosis congenita, Hoyeraal-Hreidarsson syndrome, Revesz syndrome, and Coats plus. STUDY DESIGN: Clinical Care Consortium for Telomere Associated Ailments members were invited to contribute data on individuals with telomere biology disorders at their institutions who experienced GI bleeding. Patient demographic, laboratory, imaging, procedural, and treatment information and outcomes were extracted from the medical record. RESULTS: Sixteen patients who experienced GI hemorrhage were identified at 11 centers. Among 14 patients who underwent genetic testing, 8 had mutations in TINF2, 4 had mutations in CTC1 or STN1, and 1 patient each had a mutation in TERC and RTEL1. Ten patients had a history of hematopoietic cell transplantation. The patients with Coats plus and those without Coats plus had similar clinical features and courses. Angiodysplasia of the stomach and/or small bowel was described in 8 of the 12 patients who underwent endoscopy; only 4 had esophageal varices. Various medical interventions were trialed. No single intervention was uniformly associated with cessation of bleeding, although 1 patient had a sustained response to treatment with bevacizumab. Recurrence was common, and the overall long-term outcome for affected patients was poor. CONCLUSIONS: GI bleeding in patients with telomere biology disorders is associated with significant morbidity and with vascular ectasias rather than varices.


Assuntos
Hemorragia Gastrointestinal/etiologia , Telômero/genética , Adolescente , Adulto , Ataxia/complicações , Ataxia/genética , Doenças Ósseas Metabólicas/complicações , Doenças Ósseas Metabólicas/genética , Medula Óssea/anormalidades , Neoplasias Encefálicas/complicações , Neoplasias Encefálicas/genética , Calcinose/complicações , Calcinose/genética , Cistos do Sistema Nervoso Central/complicações , Cistos do Sistema Nervoso Central/genética , Criança , Pré-Escolar , Disceratose Congênita/complicações , Disceratose Congênita/genética , Feminino , Retardo do Crescimento Fetal/genética , Hemorragia Gastrointestinal/genética , Humanos , Deficiência Intelectual/complicações , Deficiência Intelectual/genética , Leucoencefalopatias/complicações , Leucoencefalopatias/genética , Masculino , Microcefalia/complicações , Microcefalia/genética , Espasticidade Muscular/complicações , Espasticidade Muscular/genética , Mutação , Retina , Doenças Retinianas/complicações , Doenças Retinianas/genética , Convulsões/complicações , Convulsões/genética , Telômero/metabolismo , Telômero/patologia , Adulto Jovem
18.
Lancet Infect Dis ; 21(1): 97-106, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-33129424

RESUMO

BACKGROUND: Influenza vaccination during pregnancy prevents influenza among women and their infants but remains underused among pregnant women. We aimed to quantify the risk of antenatal influenza and examine its association with perinatal outcomes. METHODS: We did a prospective cohort study in pregnant women in India, Peru, and Thailand. Before the 2017 and 2018 influenza seasons, we enrolled pregnant women aged 18 years or older with expected delivery dates 8 weeks or more after the season started. We contacted women twice weekly until the end of pregnancy to identify illnesses with symptoms of myalgia, cough, runny nose or nasal congestion, sore throat, or difficulty breathing and collected mid-turbinate nasal swabs from symptomatic women for influenza real-time RT-PCR testing. We assessed the association of antenatal influenza with preterm birth, late pregnancy loss (≥13 weeks gestation), small for gestational age (SGA), and birthweight of term singleton infants using Cox proportional hazards models or generalised linear models to adjust for potential confounders. FINDINGS: Between March 13, 2017, and Aug 3, 2018, we enrolled 11 277 women with a median age of 26 years (IQR 23-31) and gestational age of 19 weeks (14-24). 1474 (13%) received influenza vaccines. 310 participants (3%) had influenza (270 [87%] influenza A and 40 [13%] influenza B). Influenza incidences weighted by the population of women of childbearing age in each study country were 88·7 per 10 000 pregnant woman-months (95% CI 68·6 to 114·8) during the 2017 season and 69·6 per 10 000 pregnant woman-months (53·8 to 90·2) during the 2018 season. Antenatal influenza was not associated with preterm birth (adjusted hazard ratio [aHR] 1·4, 95% CI 0·9 to 2·0; p=0·096) or having an SGA infant (adjusted relative risk 1·0, 95% CI 0·8 to 1·3, p=0·97), but was associated with late pregnancy loss (aHR 10·7, 95% CI 4·3 to 27·0; p<0·0001) and reduction in mean birthweight of term, singleton infants (-55·3 g, 95% CI -109·3 to -1·4; p=0·0445). INTERPRETATION: Women had a 0·7-0·9% risk of influenza per month of pregnancy during the influenza season, and antenatal influenza was associated with increased risk for some adverse pregnancy outcomes. These findings support the added value of antenatal influenza vaccination to improve perinatal outcomes. FUNDING: US Centers for Disease Control and Prevention. TRANSLATIONS: For the Thai, Hindi, Marathi and Spanish translations of the abstract see Supplementary Materials section.


Assuntos
Países em Desenvolvimento/estatística & dados numéricos , Recém-Nascido Pequeno para a Idade Gestacional , Influenza Humana/epidemiologia , Complicações Infecciosas na Gravidez/epidemiologia , Resultado da Gravidez/epidemiologia , Nascimento Prematuro/epidemiologia , Adulto , Estudos de Coortes , Feminino , Humanos , Incidência , Índia , Recém-Nascido , Estudos Longitudinais , Masculino , Peru , Gravidez , Estudos Prospectivos , Tailândia , Adulto Jovem
19.
Dental press j. orthod. (Impr.) ; 26(3): e21ins3, 2021.
Artigo em Inglês | LILACS, BBO - Odontologia | ID: biblio-1286214

RESUMO

ABSTRACT Introduction: A pandemic was declared by the World Health Organization on 30th January 2020, the coronavirus disease (COVID-19) emerged, and led to standstill of Dentistry and Orthodontics. Description: The COVID-19 is a very multivariant disease. It affects in many different ways; the most reported symptoms resemble very much to that of a seasonal flu. Patients feel rising fever, dry cough and shortness of breath. There are two ways to handle them, the first being remotely guiding and helping them with aid of telecommunication, and second you can prepare the clinic by following all sanitization protocols and keep the clinic open only for such patients. Usage of Environment Protection agents, N95 masks, PPE kits and HEPA filters are some of the basic things to go about. Conclusion: With the non-stop change of scenario of the COVID-19, meticulous monitoring of the local situation and one eye on the latest instructions given by the WHO and Health ministry should be followed.


RESUMO Introdução: Uma pandemia foi declarada pela Organização Mundial de Saúde em 30 de janeiro de 2020. A doença do Coronavírus (COVID-19) surgiu, e levou à paralisação da Odontologia e da Ortodontia. Descrição: A COVID-19 é uma doença muito multivariante. Afeta de muitas formas diferentes; e seus sintomas mais relatados assemelham-se muito aos de uma gripe sazonal. Os doentes sentem febre crescente, tosse seca e falta de ar. Há duas maneiras de lidar com eles, sendo o primeiro guiar e ajudar os pacientes remotamente com a ajuda das telecomunicações; e segundo, preparar a clínica, seguindo todos os protocolos de sanitização e manter a clínica aberta apenas para esses pacientes. A utilização de agentes de proteção ambiental, máscaras N95, kits EPI e filtros HEPA são algumas das coisas básicas a serem feitas. Conclusão: Com a mudança contínua do cenário da COVID-19, deve-se seguir um acompanhamento meticuloso da situação local, observando as últimas instruções dadas pela OMS e pelo Ministério da Saúde.


Assuntos
Humanos , Ortodontia , COVID-19 , Pandemias , SARS-CoV-2
20.
Photodiagnosis Photodyn Ther ; 29: 101583, 2020 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-31731064

RESUMO

Cryptococcosis is a disseminated infection caused mainly by C. neoformans and C. gattii. Limitations for the treatment involve the selection of isolates resistant to conventional antifungal drugs, prolonged treatment time and drugs side effects. This study evaluated the combined effect of histone deacetylase inhibitors (HDACi) and photodynamic therapy (PDT) on the growth of C. neoformans and C. gattii in vitro. Results showed that PDT inhibited yeasts proliferation and enhanced the HDACi-mediated cell viability impairment in Cryptococcus spp.


Assuntos
Cryptococcus/efeitos dos fármacos , Inibidores de Histona Desacetilases/farmacologia , Indóis/farmacologia , Compostos Organometálicos/farmacologia , Fotoquimioterapia/métodos , Fármacos Fotossensibilizantes/farmacologia , Ciclo Celular/efeitos dos fármacos , Humanos
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