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1.
PLoS Pathog ; 19(3): e1011146, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36862759

RESUMO

Ancylostoma caninum is an important zoonotic gastrointestinal nematode of dogs worldwide and a close relative of human hookworms. We recently reported that racing greyhound dogs in the USA are infected with A. caninum that are commonly resistant to multiple anthelmintics. Benzimidazole resistance in A. caninum in greyhounds was associated with a high frequency of the canonical F167Y(TTC>TAC) isotype-1 ß-tubulin mutation. In this work, we show that benzimidazole resistance is remarkably widespread in A. caninum from domestic dogs across the USA. First, we identified and showed the functional significance of a novel benzimidazole isotype-1 ß-tubulin resistance mutation, Q134H(CAA>CAT). Several benzimidazole resistant A. caninum isolates from greyhounds with a low frequency of the F167Y(TTC>TAC) mutation had a high frequency of a Q134H(CAA>CAT) mutation not previously reported from any eukaryotic pathogen in the field. Structural modeling predicted that the Q134 residue is directly involved in benzimidazole drug binding and that the 134H substitution would significantly reduce binding affinity. Introduction of the Q134H substitution into the C. elegans ß-tubulin gene ben-1, by CRISPR-Cas9 editing, conferred similar levels of resistance as a ben-1 null allele. Deep amplicon sequencing on A. caninum eggs from 685 hookworm positive pet dog fecal samples revealed that both mutations were widespread across the USA, with prevalences of 49.7% (overall mean frequency 54.0%) and 31.1% (overall mean frequency 16.4%) for F167Y(TTC>TAC) and Q134H(CAA>CAT), respectively. Canonical codon 198 and 200 benzimidazole resistance mutations were absent. The F167Y(TTC>TAC) mutation had a significantly higher prevalence and frequency in Western USA than in other regions, which we hypothesize is due to differences in refugia. This work has important implications for companion animal parasite control and the potential emergence of drug resistance in human hookworms.


Assuntos
Ancylostoma , Anti-Helmínticos , Animais , Cães , Ancylostoma/genética , Ancylostomatoidea , Anti-Helmínticos/farmacologia , Benzimidazóis/farmacologia , Caenorhabditis elegans , Resistência a Medicamentos/genética , Mutação , Tubulina (Proteína)/genética
2.
J Cell Sci ; 135(3)2022 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-35019135

RESUMO

The adapter protein SH2B1 is recruited to neurotrophin receptors, including TrkB (also known as NTRK2), the receptor for brain-derived neurotrophic factor (BDNF). Herein, we demonstrate that the four alternatively spliced isoforms of SH2B1 (SH2B1α-SH2B1δ) are important determinants of neuronal architecture and neurotrophin-induced gene expression. Primary hippocampal neurons from Sh2b1-/- [knockout (KO)] mice exhibit decreased neurite complexity and length, and BDNF-induced expression of the synapse-related immediate early genes Egr1 and Arc. Reintroduction of each SH2B1 isoform into KO neurons increases neurite complexity; the brain-specific δ isoform also increases total neurite length. Human obesity-associated variants, when expressed in SH2B1δ, alter neurite complexity, suggesting that a decrease or increase in neurite branching may have deleterious effects that contribute to the severe childhood obesity and neurobehavioral abnormalities associated with these variants. Surprisingly, in contrast to SH2B1α, SH2B1ß and SH2B1γ, which localize primarily in the cytoplasm and plasma membrane, SH2B1δ resides primarily in nucleoli. Some SH2B1δ is also present in the plasma membrane and nucleus. Nucleolar localization, driven by two highly basic regions unique to SH2B1δ, is required for SH2B1δ to maximally increase neurite complexity and BDNF-induced expression of Egr1, Arc and FosL1.


Assuntos
Proteínas Adaptadoras de Transdução de Sinal/genética , Neurônios/citologia , Proteínas Adaptadoras de Transdução de Sinal/metabolismo , Animais , Fator Neurotrófico Derivado do Encéfalo/genética , Fator Neurotrófico Derivado do Encéfalo/metabolismo , Células Cultivadas , Camundongos , Neuritos/metabolismo , Neurônios/metabolismo , Isoformas de Proteínas/genética , Isoformas de Proteínas/metabolismo
3.
Climacteric ; 27(1): 60-67, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38073542

RESUMO

Improvements in cancer care have led to an exponential increase in cancer survival. This is particularly the case for breast cancer, where 5-year survival in Australia exceeds 90%. Cardiovascular disease (CVD) has emerged as one of the competing causes of morbidity and mortality among cancer survivors, both as a complication of cancer therapies and because the risk factors for cancer are shared with those for CVD. In this review we cover the key aspects of cardiovascular care for women throughout their cancer journey: the need for baseline cardiovascular risk assessment and management, a crucial component of the cardiovascular care; the importance of long-term surveillance for ongoing maintenance of cardiovascular health; and strong evidence for the beneficial effects of physical exercise to improve both cancer and cardiovascular outcomes. There is general disparity in cardiovascular outcomes for women, which is further exacerbated when both CVD and cancer co-exist. Collaboration between oncology and cardiac services, with an emergence of the whole field of cardio-oncology, allows for expedited investigation and treatment for these patients. This collaboration as well as a holistic approach to patient care and key role of patients' general practitioners are essential to ensure long-term health of people living with, during and beyond cancer.


Assuntos
Neoplasias da Mama , Doenças Cardiovasculares , Neoplasias , Humanos , Feminino , Neoplasias/complicações , Doenças Cardiovasculares/epidemiologia , Fatores de Risco , Neoplasias da Mama/complicações , Neoplasias da Mama/terapia , Oncologia , Saúde da Mulher
4.
J Nerv Ment Dis ; 212(6): 303-311, 2024 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-38704650

RESUMO

ABSTRACT: Injuries and poisoning are associated with mental disorders. The association may be stronger if comorbid mental illness is involved. This study explores whether selected mental disorders (stress, anxiety, depression, attention deficit hyperactivity disorder [ADHD], bipolar, obsessive-compulsive disorder [OCD], schizophrenia) are associated with injuries and poisoning and if the presence and frequency of comorbid mental illness affect these associations. Analyses utilize medical claims data for adult employees of a large corporation during 2017-2021. Approximately half or more of the index mental disorders experience comorbid mental illness. Odds of injury and poisoning are significantly greater for each mental disorder and tend to be significantly greater when comorbid mental illness exists ( vs . the mental disorder alone), especially for the associations involving poisoning. Schizophrenia alone and in combination with other mental illness has the strongest associations with injury and poisoning. OCD is only associated with injury and poisoning, and ADHD is only associated with poisoning, if accompanied by comorbid mental illness.


Assuntos
Comorbidade , Transtornos Mentais , Intoxicação , Ferimentos e Lesões , Humanos , Adulto , Feminino , Masculino , Transtornos Mentais/epidemiologia , Pessoa de Meia-Idade , Ferimentos e Lesões/epidemiologia , Ferimentos e Lesões/psicologia , Intoxicação/epidemiologia , Transtorno do Deficit de Atenção com Hiperatividade/epidemiologia , Adulto Jovem , Transtorno Obsessivo-Compulsivo/epidemiologia , Esquizofrenia/epidemiologia
5.
BMC Oral Health ; 24(1): 98, 2024 01 17.
Artigo em Inglês | MEDLINE | ID: mdl-38233825

RESUMO

BACKGROUND: The Sustainable Development Goal 12 (SDG12) promotes patterns that minimize waste and maximize resource utilization. It is therefore plausible that preventing Early Childhood Caries (ECC) and promoting oral health can contribute to sustainable consumption. In addition, sustainable consumption and production can contribute to the control of ECC. This scoping review aimed to explore the possible evidence on the link between ECC and the SDG12 targets. METHODS: This scoping review identified articles on the link between resource consumption and production and caries according to the PRISMA-ScR guidelines. Three electronic databases (PubMed, Web of Science, and Scopus) were systematically searched in August 2023, using specific search terms. Studies written in English, with full text available, addressing dental caries and linked with waste minimization and resource utilization maximisation, with results that could be extrapolated to ECC in children less than 6 years of age) were included. Descriptive statistics were planned to summarize the categories of retrieved papers. RESULTS: The initial search yielded 904 articles, with 863 screened for eligibility after the removal of duplicates. No studies were identified that reported data on an association between responsible consumption and production of resources factors and ECC. CONCLUSION: This scoping review did not identify any articles published in English on evidence of the direct associations between ECC and SDG12 targets. However, there is a plausibility of such a link using minimum intervention dentistry for ECC management as a waste prevention and resource utilisation maximization strategy.


Assuntos
Cárie Dentária , Criança , Pré-Escolar , Humanos , Cárie Dentária/prevenção & controle , Suscetibilidade à Cárie Dentária , Saúde Bucal , Desenvolvimento Sustentável
6.
BMC Oral Health ; 24(1): 751, 2024 Jun 28.
Artigo em Inglês | MEDLINE | ID: mdl-38943110

RESUMO

BACKGROUND: Early childhood caries (ECC) is a multifactorial disease in which environmental factors could play a role. The purpose of this scoping review was to map the published literature that assessed the association between the Sustainable Development Goal (SDG) 11, which tried to make cities and human settlements safe, inclusive, resilient and sustainable, and ECC. METHODS: This scoping review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Extension for Scoping Reviews (PRISMA-ScR) guidelines. In July 2023, a search was conducted in PubMed, Web of Science, and Scopus using tailored search terms related to housing, urbanization, waste management practices, and ECC. Studies that solely examined ECC prevalence without reference to SDG11 goals were excluded. Of those that met the inclusion criteria, a summary highlighting the countries and regions where the studies were conducted, the study designs employed, and the findings were done. In addition, the studies were also linked to relevant SDG11 targets. RESULTS: Ten studies met the inclusion criteria with none from the African Region. Six studies assessed the association between housing and ECC, with findings suggesting that children whose parents owned a house had lower ECC prevalence and severity. Other house related parameters explored were size, number of rooms, cost and building materials used. The only study on the relationship between the prevalence of ECC and waste management modalities at the household showed no statistically significant association. Five studies identified a relationship between urbanization and ECC (urbanization, size, and remoteness of the residential) with results suggesting that there was no significant link between ECC and urbanization in high-income countries contrary to observations in low and middle-income countries. No study assessed the relationship between living in slums, natural disasters and ECC. We identified links between ECC and SDG11.1 and SDG 11.3. The analysis of the findings suggests a plausible link between ECC and SDG11C (Supporting least developed countries to build resilient buildings). CONCLUSION: There are few studies identifying links between ECC and SDG11, with the findings suggesting the possible differences in the impact of urbanization on ECC by country income-level and home ownership as a protective factor from ECC. Further research is needed to explore measures of sustainable cities and their links with ECC within the context of the SDG11.


Assuntos
Cárie Dentária , Desenvolvimento Sustentável , Humanos , Cárie Dentária/epidemiologia , Cárie Dentária/prevenção & controle , Pré-Escolar , Cidades , Habitação , Urbanização , Gerenciamento de Resíduos/métodos , Criança
7.
BMC Oral Health ; 24(1): 77, 2024 01 13.
Artigo em Inglês | MEDLINE | ID: mdl-38218865

RESUMO

BACKGROUND: Early Childhood Caries (ECC) is a prevalent chronic non-communicable disease that affects millions of young children globally, with profound implications for their well-being and oral health. This paper explores the associations between ECC and the targets of the Sustainable Development Goal 8 (SDG 8). METHODS: The scoping review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Extension for Scoping Reviews (PRISMA-ScR) guidelines. In July 2023, a search was conducted in PubMed, Web of Science, and Scopus using tailored search terms related to economic growth, decent work sustained economic growth, higher levels of productivity and technological innovation, entrepreneurship, job creation, and efforts to eradicate forced labor, slavery, and human trafficking and ECC all of which are the targets of the SDG8. Only English language publications, and publications that were analytical in design were included. Studies that solely examined ECC prevalence without reference to SDG8 goals were excluded. RESULTS: The initial search yielded 761 articles. After removing duplicates and ineligible manuscripts, 84 were screened. However, none of the identified studies provided data on the association between decent work, economic growth-related factors, and ECC. CONCLUSIONS: This scoping review found no English publication on the associations between SDG8 and ECC despite the plausibility for this link. This data gap can hinder policymaking and resource allocation for oral health programs. Further research should explore the complex relationship between economic growth, decent work and ECC to provide additional evidence for better policy formulation and ECC control globally.


Assuntos
Cárie Dentária , Desenvolvimento Econômico , Criança , Pré-Escolar , Humanos , Cárie Dentária/epidemiologia , Cárie Dentária/etiologia , Suscetibilidade à Cárie Dentária , Saúde Bucal/legislação & jurisprudência , Prevalência
8.
Antimicrob Agents Chemother ; 67(6): e0000823, 2023 06 15.
Artigo em Inglês | MEDLINE | ID: mdl-37212658

RESUMO

In humans, nematode infections are prevalent in developing countries, causing long-term ill health, particularly in children. Worldwide, nematode infections are prevalent in livestock and pets, affecting productivity and health. Anthelmintic drugs are the primary means of controlling nematodes, but there is now high prevalence of anthelmintic resistance, requiring urgent identification of new molecular targets for anthelmintics with novel mechanisms of action. Here, we identified orthologous genes for phosphoethanolamine methyltransferases (PMTs) in nematodes within the families Trichostrongylidae, Dictyocaulidae, Chabertiidae, Ancylostomatoidea, and Ascarididae. We characterized these putative PMTs and found that they possess bona fide PMT catalytic activities. By complementing a mutant yeast strain lacking the ability to synthesize phosphatidylcholine, the PMTs were validated to catalyze the biosynthesis of phosphatidylcholine. Using an in vitro phosphoethanolamine methyltransferase assay with PMTs as enzymes, we identified compounds with cross-inhibitory effects against the PMTs. Corroboratively, treatment of PMT-complemented yeast with the PMT inhibitors blocked growth of the yeast, underscoring the essential role of the PMTs in phosphatidylcholine synthesis. Fifteen of the inhibitors with the highest activity against complemented yeast were tested against Haemonchus contortus using larval development and motility assays. Among them, four were found to possess potent anthelmintic activity against both multiple drug-resistant and susceptible isolates of H. contortus, with IC50 values (95% confidence interval) of 4.30 µM (2.15-8.28), 4.46 µM (3.22-6.16), 28.7 µM (17.3-49.5), and 0.65 µM (0.21-1.88). Taken together, we have validated a molecular target conserved in a broad range of nematodes and identified its inhibitors that possess potent in vitro anthelmintic activity.


Assuntos
Anti-Helmínticos , Haemonchus , Nematoides , Infecções por Nematoides , Animais , Criança , Humanos , Saccharomyces cerevisiae/genética , Anti-Helmínticos/farmacologia , Metiltransferases/genética , Haemonchus/genética , Fosfatidilcolinas
9.
Opt Express ; 31(2): 1901-1915, 2023 Jan 16.
Artigo em Inglês | MEDLINE | ID: mdl-36785215

RESUMO

Imaging birefringent interferometers are used to measure plasma flow in 2-D via the Doppler shift of a spectral emission line. Applications include plasma physics study in fusion energy experiments and in the Earth's upper atmosphere. We present a new, to the best of our knowledge, method for wavelength calibration that does not require measurement at the rest wavelength of the targeted spectral line, nor measurement using a tuneable laser source. This is useful when such light sources are not available. Fringes measured at known wavelengths from the emission lines of gas-discharge lamps are used to constrain an instrument model which can generate the required calibration data. In the process, optical path difference, dispersion and misalignments are characterized. The "2π ambiguity" of interferogram phase data is handled using circular statistics, allowing the wavelength span of the calibration lines to far exceed the unambiguous measurement range of the instrument. The technique is demonstrated to an accuracy of ±1 pm (±0.7 km/s flow-equivalent) over a 40 nm visible wavelength range.

10.
Ann Gen Psychiatry ; 22(1): 23, 2023 May 27.
Artigo em Inglês | MEDLINE | ID: mdl-37245028

RESUMO

PURPOSE: Mental disorders positively associate with sleep disorders. This study will explore the moderating influence of comorbid mental disorders and whether selected psychotropic drugs correlate with sleep disorders after adjusting for mental disorders. METHODS: A retrospective cohort study design was employed using medical claim data from the Deseret Mutual Benefit Administrators (DMBA). Mental disorders, psychotropic drug use, and demographic data were extracted from claim files for ages 18-64, years 2016-2020. RESULTS: Approximately 11.7% filed one or more claims for a sleep disorder [insomnia (2.2%) and sleep apnea (9.7%)]. Rates for selected mental disorders ranged from 0.09% for schizophrenia to 8.4% for anxiety. The rate of insomnia is greater in those with bipolar disorder or schizophrenia than in other mental disorders. The rate of sleep apnea is greater in those with bipolar disorder and depression. There is a significantly positive association between mental disorders and insomnia and sleep apnea, more so for insomnia, especially if they had other comorbid mental disorders. Psychotropic drugs other than CNS stimulants, primarily sedatives (non-barbiturate) and psychostimulants, explain much of the positive association between anxiety, depression, and bipolar disorder with insomnia. Psychotropic drugs with the largest effect on sleep disorders are sedatives (non-barbiturate) and psychostimulants for insomnia and psychostimulants and anticonvulsants for sleep apnea. CONCLUSION: Mental disorders positively correlate with insomnia and sleep apnea. The positive association is greater when multiple mental illness exists. Bipolar disorder and schizophrenia are most strongly associated with insomnia, and bipolar disorder and depression are most strongly associated with sleep disorders. Psychotropic drugs other than CNS stimulants, primarily sedatives (non-barbiturate) and psychostimulants for treating anxiety, depression, or bipolar disorder are associated with higher levels of insomnia and sleep apnea.

11.
BMC Psychiatry ; 22(1): 765, 2022 12 05.
Artigo em Inglês | MEDLINE | ID: mdl-36471289

RESUMO

BACKGROUND: Mental health disorders can adversely affect relationships and are heritable. Yet, there is a high prevalence of mental illness in spouses and partners of those with mental illness. This study will assess within- and cross-mental health disorder correlations in husband-and-wife pairs. METHODS: A cross-sectional study design was employed using medical claims data from the Deseret Mutual Benefit Administrators (DMBA), linked to demographic information from employee eligibility files, 2020. Analyses involved 21,027 contract holders aged 18-64 (68.6% male, 31.4% female), with sub-analyses on 16,543 married individuals. Summary statistics, as well as rates, and rate ratios adjusted for age, sex, and dependent child status were calculated to describe the data. RESULTS: The rate of stress is 19.2%, anxiety is 26.4%, and depression is 23.6% in spouses of contract holders with the same respective disorders. Rates of stress, anxiety, and depression in a spouse are greatest if the contract holder has schizophrenia. Rates of mental illness in wives of male contract holders experiencing mental health disorders tend to be greater than the rates of mental illness in husbands of female contract holders experiencing mental health disorders. Rates of stress, anxiety, and depression in spouses of contract holders tend to be 2-3 times greater when the contract holder has a mental health disorder, after adjusting for the contract holder's age, sex, dependent child status, and difference in age within husband-and-wife pairs. However, differences in the magnitude of observed associations vary. The rate of a spouse having stress is 5.5 times greater if the contract holder has schizophrenia (vs. does not have schizophrenia), whereas the rate of a spouse having stress is 1.4 times greater if the contract holder has sleep apnea (vs. does not have sleep apnea). CONCLUSION: Mental health disorders in spouses of contract holders are greater if the contract holder has a mental health disorder, more so when the contract holder has more serious mental illness. Both within- and cross-mental disorder correlations exist. These results have implications on relationship quality and the mental health of offspring.


Assuntos
Transtornos Mentais , Síndromes da Apneia do Sono , Criança , Masculino , Feminino , Humanos , Cônjuges/psicologia , Saúde Mental , Estudos Transversais , Transtornos Mentais/epidemiologia , Transtornos Mentais/psicologia
12.
World J Surg Oncol ; 20(1): 171, 2022 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-35641982

RESUMO

INTRODUCTION: Pseudomyxoma peritonei (PMP) is a generalized term, usually known as "jelly belly" since 1884. Incidence is very low, 1-3 per million people per year. Because of its indolent nature, it is usually diagnosed at an advanced stage, thereby impacting the quality of life. The 5-year survival rate varies from 23 to 86% in world literature. Even 10 years and 20 years of survival have been described. With our experience, we like to propose rename of PMP as abdomino-peritoneal mucinous carcinoma (APM) as we strongly feel the time has come to specify the term and standardize the management strategy. METHODOLOGY: In the premier institute of India and as a tertiary referral center, we experienced the maximum number of advanced cases of APM. From 2012 to 2021, we analyzed all the APM patients based on a prospectively maintained computerized database in the department of surgical oncology and found the reasons for renaming from this traditional one. RESULTS: We included a total of 87 patients who underwent surgical intervention. Thirty-five patients underwent cytoreductive surgery (CRS) with hyperthermic intraperitoneal chemotherapy (HIPEC), and 52 patients underwent debulking. In CRS-HIPEC patients, CC-0 was achieved in 28 patients (80%), CC-1 in 4 patients (11.4%), and CC-2 in 3 patients (8.6%). Palliative intent HIPEC was done in 3 patients (8.6%). Clavien-Dindo grade III and IV morbidity was observed in 18.8% of patients with 90 days mortality of 5.7%. CONCLUSION: With our long-term experience and advancement of scientific evidence, we like to propose a new name for PMP as APM. We strongly believe this paper will give a clear picture of this rare disease and standard management outlines.


Assuntos
Adenocarcinoma Mucinoso , Hipertermia Induzida , Neoplasias Peritoneais , Pseudomixoma Peritoneal , Adenocarcinoma Mucinoso/terapia , Humanos , Neoplasias Peritoneais/patologia , Pseudomixoma Peritoneal/patologia , Qualidade de Vida
13.
Issues Ment Health Nurs ; 43(8): 721-729, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-35285759

RESUMO

The purpose of the study was to investigate the moderating effect of resilience on the relationship between mindfulness, experiential avoidance, and posttraumatic stress disorder (PTSD) symptom severity. A cross-sectional study design was used on a sample of 133 college student military veterans. We found a direct effect of mindfulness on PTSD and a significant mediating effect of experiential avoidance on the relationship between mindfulness and PTSD. Resilience also had a significant moderating effect on the relationship between mindfulness and PTSD. This study provides preliminary evidence on the usefulness of integrating resilience development in mindfulness-based interventions for trauma-related disorders.


Assuntos
Atenção Plena , Transtornos de Estresse Pós-Traumáticos , Veteranos , Estudos Transversais , Humanos , Transtornos de Estresse Pós-Traumáticos/diagnóstico , Transtornos de Estresse Pós-Traumáticos/terapia , Estudantes
14.
Future Oncol ; 17(14): 1761-1776, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-33728945

RESUMO

This study analyzed the surgical outcomes after initial implementation of a cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (HIPEC) program in government settings in India. Methods: Ovarian cancer patients undergoing cytoreductive surgery and HIPEC from May 2015 to April 2019 were identified from a prospectively maintained database. Treatment characteristics and surgical outcomes were analyzed. Results: The study identified 101 patients. The mean peritoneal cancer index (PCI) was 7 ± 6, with higher PCI scores in primary and recurrent cases. Major morbidities were recorded in 24.7% of patients. High PCI score, completeness of cytoreduction and major morbidities were independent predictors of overall survival in multivariate analysis. Conclusion: The application of HIPEC in limited-resource settings is feasible with acceptable major morbidities. This program should receive similar priority in government systems.


Assuntos
Carcinoma Epitelial do Ovário/terapia , Quimioterapia Intraperitoneal Hipertérmica/estatística & dados numéricos , Recidiva Local de Neoplasia/terapia , Neoplasias Ovarianas/terapia , Neoplasias Peritoneais/terapia , Idoso , Carcinoma Epitelial do Ovário/diagnóstico , Carcinoma Epitelial do Ovário/secundário , Procedimentos Cirúrgicos de Citorredução , Intervalo Livre de Doença , Estudos de Viabilidade , Feminino , Seguimentos , Humanos , Índia/epidemiologia , Pessoa de Meia-Idade , Gradação de Tumores , Recidiva Local de Neoplasia/diagnóstico , Recidiva Local de Neoplasia/mortalidade , Recidiva Local de Neoplasia/patologia , Neoplasias Ovarianas/diagnóstico , Neoplasias Ovarianas/mortalidade , Neoplasias Ovarianas/patologia , Neoplasias Peritoneais/diagnóstico , Neoplasias Peritoneais/mortalidade , Neoplasias Peritoneais/secundário , Prognóstico , Taxa de Sobrevida
15.
Cancer Causes Control ; 31(8): 767-776, 2020 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-32462559

RESUMO

PURPOSE: Air pollution and smoking are associated with various types of mortality, including cancer. The current study utilizes a publicly accessible, nationally representative cohort to explore relationships between fine particulate matter (PM2.5) exposure, smoking, and cancer mortality. METHODS: National Health Interview Survey and mortality follow-up data were combined to create a study population of 635,539 individuals surveyed from 1987 to 2014. A sub-cohort of 341,665 never-smokers from the full cohort was also created. Individuals were assigned modeled PM2.5 exposure based on average exposure from 1999 to 2015 at residential census tract. Cox Proportional Hazard models were utilized to estimate hazard ratios for cancer-specific mortality controlling for age, sex, race, smoking status, body mass, income, education, marital status, rural versus urban, region, and survey year. RESULTS: The risk of all cancer mortality was adversely associated with PM2.5 (per 10 µg/m3 increase) in the full cohort (hazard ratio [HR] 1.15, 95% confidence interval [CI] 1.08-1.22) and the never-smokers' cohort (HR 1.19, 95% CI 1.06-1.33). PM2.5-morality associations were observed specifically for lung, stomach, colorectal, liver, breast, cervix, and bladder, as well as Hodgkin lymphoma, non-Hodgkin lymphoma, and leukemia. The PM2.5-morality association with lung cancer in never-smokers was statistically significant adjusting for multiple comparisons. Cigarette smoking was statistically associated with mortality for many cancer types. CONCLUSIONS: Exposure to PM2.5 air pollution contributes to lung cancer mortality and may be a risk factor for other cancer types. Cigarette smoking has a larger impact on cancer mortality than PM2.5 , but is associated with similar cancer types.


Assuntos
Poluentes Atmosféricos/efeitos adversos , Poluição do Ar/efeitos adversos , Fumar Cigarros/efeitos adversos , Fumar Cigarros/mortalidade , Neoplasias/etiologia , Neoplasias/mortalidade , Material Particulado/efeitos adversos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Exposição Ambiental/efeitos adversos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Modelos de Riscos Proporcionais , Fatores de Risco , Estados Unidos/epidemiologia , Adulto Jovem
16.
Nature ; 505(7485): 657-60, 2014 Jan 30.
Artigo em Inglês | MEDLINE | ID: mdl-24476889

RESUMO

Magnetic monopoles--particles that behave as isolated north or south magnetic poles--have been the subject of speculation since the first detailed observations of magnetism several hundred years ago. Numerous theoretical investigations and hitherto unsuccessful experimental searches have followed Dirac's 1931 development of a theory of monopoles consistent with both quantum mechanics and the gauge invariance of the electromagnetic field. The existence of even a single Dirac magnetic monopole would have far-reaching physical consequences, most famously explaining the quantization of electric charge. Although analogues of magnetic monopoles have been found in exotic spin ices and other systems, there has been no direct experimental observation of Dirac monopoles within a medium described by a quantum field, such as superfluid helium-3 (refs 10-13). Here we demonstrate the controlled creation of Dirac monopoles in the synthetic magnetic field produced by a spinor Bose-Einstein condensate. Monopoles are identified, in both experiments and matching numerical simulations, at the termini of vortex lines within the condensate. By directly imaging such a vortex line, the presence of a monopole may be discerned from the experimental data alone. These real-space images provide conclusive and long-awaited experimental evidence of the existence of Dirac monopoles. Our result provides an unprecedented opportunity to observe and manipulate these quantum mechanical entities in a controlled environment.

17.
BMC Oral Health ; 20(1): 46, 2020 02 10.
Artigo em Inglês | MEDLINE | ID: mdl-32041596

RESUMO

BACKGROUND: Preschool years are a critical period in the development of a healthy child. The consequences of poor oral health in preschool children reach beyond dental problems, with oral health-related quality of life (OHRQoL) being associated with overall systematic health as well as one's quality of life. The purpose of this study was to assess the prevalence of dental caries and its impacts on the OHRQoL in a sample of preschool children in Kisarawe. METHODS: A cross-sectional based study was conducted in 2017. A total of 1106 preschool children completed a face-to-face interview, using a translated Kiswahili version of the Michigan Oral Health-related Quality of Life Scale (MOHRQoL) -Child Version (2003), and underwent clinical oral examination using WHO (1997) criteria. RESULTS: The decayed component was the most prevalent (dft = 2.08) and the Significant Caries Index (SiC) was 5.54 double of the (dft), showing polarization of dental caries in the studied population. After adjusting for appropriate covariates, preschool children of age 5 and 6 years old were more likely to have decayed tooth [Adjusted OR = 3.02, (95% CI =2.01-4.54)] and [Adjusted OR = 2.23, (95% CI = 1.55-3.20)] respectively. Preschool children without visible plaque on the buccal surface of upper anterior teeth were less likely to have decayed teeth [Adjusted OR = 0.21, (95% CI = 0.09-0.45)]. Regarding measurements of oral health-related quality of life using the MOHRQoL, only preschool children who reported on 'do your teeth hurt you now?' and 'do kids make fun of your teeth?' were more likely to have a decayed tooth [Adjusted OR = 1.74, (95% CI = 1.12-2.71)] and [Adjusted OR = 1.87, (95% CI = 1.11-3.15)], respectively. CONCLUSION: Findings from this study suggest that dental caries affects a significant portion of preschool children and, was associated with poor oral hygiene. The overall impacts of dental caries prevalence to OHRQoL were low in this sample of preschool children. Children having caries (independent variable) were shown to report more frequently that 'do your teeth hurt you now?' and 'do kids make fun of your teeth?' were more likely to have a decayed tooth among preschool children in Kisarawe, Tanzania.


Assuntos
Cárie Dentária/epidemiologia , Serviços de Saúde Bucal/estatística & dados numéricos , Saúde Bucal/estatística & dados numéricos , Qualidade de Vida , Dente Decíduo/patologia , Criança , Pré-Escolar , Estudos Transversais , Feminino , Humanos , Masculino , Prevalência , Tanzânia/epidemiologia
18.
Indian J Med Res ; 150(6): 575-583, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-32048620

RESUMO

Background & objectives: Advanced epithelial ovarian cancer (EOC) is associated with dismal outcome and progression-free survival (PFS) shortens with each subsequent relapse. For patients with recurrent and platinum refractory disease, therapeutic options are limited. Oral metronomic therapy (OMT) is associated with symptomatic relief and stable response in a significant proportion of patients. We retrospectively evaluated the outcome of patients with EOC treated with OMT at a tertiary care hospital in north India. Methods: Between January 2011 to December 2017, 36 EOC patients received OMT. Patients' median age was 50 yr (range, 38-81 yr) and they had received a median of two lines of prior chemotherapy. OMT regimen included a combination of cyclophosphamide, etoposide (VP-16) and celecoxib with or without pazopanib along with supportive care. Response rates and outcomes were ascertained using the Gynecological Cancer Intergroup Guidelines. The toxicity was graded according to the Common Terminology Criteria for Adverse Events v.4.03. Results: The median CA-125 before initiating OMT was 160 U/ml (range, 42.23-5330 U/ml). The median interval between last chemotherapy and starting OMT regimen was 159 days (range, 1-1211 days). The overall response rate was 50 per cent. The median progression-free survival (PFS) was 8.2 months [95% confidence interval (CI): 5.03-10.33], and the median overall survival was 38 months (95% CI: 25.6-NR). Patients who received two lines of chemotherapy before OMT (P=0.052) and those who received pazopanib-based OMT (P=0.0513) had better PFS. Interpretation & conclusions: For patients with relapse and refractory EOC, OMT could be a reasonable option. A combination of oral etoposide (VP-16) and pazopanib needs further evaluation in a large number of patients in a randomized trial.


Assuntos
Administração Metronômica , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Carcinoma Epitelial do Ovário/tratamento farmacológico , Recidiva Local de Neoplasia/tratamento farmacológico , Administração Oral , Adulto , Idoso , Idoso de 80 Anos ou mais , Carcinoma Epitelial do Ovário/patologia , Celecoxib/administração & dosagem , Ciclofosfamida/administração & dosagem , Tratamento Farmacológico/métodos , Etoposídeo/administração & dosagem , Feminino , Humanos , Indazóis , Índia/epidemiologia , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/patologia , Intervalo Livre de Progressão , Pirimidinas/administração & dosagem , Recidiva , Sulfonamidas/administração & dosagem
19.
Community Dent Health ; 36(3): 187-189, 2019 Aug 29.
Artigo em Inglês | MEDLINE | ID: mdl-31436924

RESUMO

OBJECTIVE: To evaluate the feasibility of collecting and analyzing saliva samples from dental practices and patients' homes for biochemical verification of tobacco use status. BASIC RESEARCH DESIGN: Sub-study within single-arm, multi-center, longitudinal clinical study. CLINICAL SETTING: Dental practices in the South Central region of the United States National Dental Practice-Based Research Network and patients' homes. PARTICIPANTS: Fifty-five patients recruited from 30 dental practices. INTERVENTIONS: Participants in the sub-study were instructed on saliva collection for cotinine analysis in dental practices where they enrolled in the primary study. Saliva was collected at the practices and then from patients' homes. MAIN OUTCOME MEASURES: Feasibility for dental practice collection was define as 80% of enrolled participants having analyzable samples. For patients' home collection, feasibility was defined as 70%. RESULTS: Forty-seven samples (i.e., 86% of those enrolled) collected in dental practices were analyzable. Twenty-one samples (i.e. 38% of those enrolled) collected in patients' homes were analyzable. CONCLUSIONS: Collecting saliva samples for cotinine analysis from dental practices, but not from patients' homes, was feasible. Dental practices may provide an advantageous setting for biochemically verifying tobacco use status as part of clinical trials for tobacco cessation.


Assuntos
Cotinina , Abandono do Hábito de Fumar , Uso de Tabaco , Cotinina/análise , Assistência Odontológica , Estudos de Viabilidade , Feminino , Humanos , Masculino , Saliva/química
20.
BMC Oral Health ; 19(1): 237, 2019 11 06.
Artigo em Inglês | MEDLINE | ID: mdl-31694634

RESUMO

BACKGROUND: Although receiving dental care is recommended for women during pregnancy, getting such care remains low. This study will identify the level of dental care received during pregnancy and factors associated with care for a group of pregnant women in Utah. METHODS: Analyses were based on 2793 pregnant women completing the 2014-2015 Utah PRAMS survey. Descriptive and bivariate techniques were used. RESULTS: Approximately 91.2% knew it was important to care for their teeth and gums during pregnancy, yet only 58.8% had their teeth cleaned during pregnancy. Those who knew such care was important were 1.4 (95% CI 1.1-2.0) times more likely to have their teeth cleaned during pregnancy. Although 18.8% needed to see a dentist for a problem, only 74.5% of them received treatment for the problem during pregnancy. Approximately 76.0% had dental insurance during pregnancy. Those with dental insurance were 1.9 (95% CI 1.5-2.4) times more likely to have their teeth cleaned and 1.6 (95% CI 1.2-2.2) times more likely to go to a dentist for needed treatment during pregnancy. Approximately 51.4% had a dental/health care worker talk with them about how to care for their teeth and gums. These women were more likely to know it was important to care for their teeth and gums during pregnancy (97.4% vs 87.6%, p < 0.0001). For women who received care for a problem during pregnancy, 70.0% had a dental/health care worker talk with them about how to care for their teeth and gums. These women were more likely to know it was important to care for their teeth and gums during pregnancy (95.2% vs 82.8%, p < 0.0001). Women who had their teeth cleaned the year prior to pregnancy were more likely to have their teeth cleaned during pregnancy (78.5% vs 21.5%, p < 0.0001). CONCLUSIONS: A large proportion of women knowing of the importance of dental care during pregnancy did not receive care. Knowledge of its importance during pregnancy, having a dental/health care worker talk with them about how to care for their teeth and gums, and having dental insurance during pregnancy are positively associated with dental care during pregnancy.


Assuntos
Assistência Odontológica/estatística & dados numéricos , Saúde Bucal , Gestantes/psicologia , Medição de Risco/métodos , Adolescente , Adulto , Feminino , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Cobertura do Seguro , Seguro Saúde , Pessoa de Meia-Idade , Gravidez , Cuidado Pré-Natal , Fatores Socioeconômicos , Utah , Adulto Jovem
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