20 research outputs found
A IMPORTĂNCIA DA ATENĂĂO FARMACĂUTICA PARA PACIENTE IDOSO COM CONSEQUĂNCIAS DE AVE
De acordo com a Organização Mundial de SaĂșde (OMS), as estimativas para o ano de 2050 para a população de mais de 60 anos Ă© em torno de dois bilhĂ”es de pessoas idosas no mundo e a maioria delas vivendo em paĂses em desenvolvimento
IMUNIDADE INATA: UMA REVISĂO DAS CARACTERISTICAS GERAIS NEUTROFILOS
Os neutrófilos ou polimorfonucleados constituem o principal tipo de leucócito do sangue periférico e protegem contra infecçÔes fungicas e bacterianas
Pervasive gaps in Amazonian ecological research
Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear un derstanding of how ecological communities respond to environmental change across time and space.3,4
While the increasing availability of global databases on ecological communities has advanced our knowledge
of biodiversity sensitivity to environmental changes,5â7 vast areas of the tropics remain understudied.8â11 In
the American tropics, Amazonia stands out as the worldâs most diverse rainforest and the primary source of
Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepre sented in biodiversity databases.13â15 To worsen this situation, human-induced modifications16,17 may elim inate pieces of the Amazonâs biodiversity puzzle before we can use them to understand how ecological com munities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus
crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced
environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple or ganism groups in a machine learning model framework to map the research probability across the Brazilian
Amazonia, while identifying the regionâs vulnerability to environmental change. 15%â18% of the most ne glected areas in ecological research are expected to experience severe climate or land use changes by
2050. This means that unless we take immediate action, we will not be able to establish their current status,
much less monitor how it is changing and what is being lostinfo:eu-repo/semantics/publishedVersio
Mitochondrial physiology
As the knowledge base and importance of mitochondrial physiology to evolution, health and disease expands, the necessity for harmonizing the terminology concerning mitochondrial respiratory states and rates has become increasingly apparent. The chemiosmotic theory establishes the mechanism of energy transformation and coupling in oxidative phosphorylation. The unifying concept of the protonmotive force provides the framework for developing a consistent theoretical foundation of mitochondrial physiology and bioenergetics. We follow the latest SI guidelines and those of the International Union of Pure and Applied Chemistry (IUPAC) on terminology in physical chemistry, extended by considerations of open systems and thermodynamics of irreversible processes. The concept-driven constructive terminology incorporates the meaning of each quantity and aligns concepts and symbols with the nomenclature of classical bioenergetics. We endeavour to provide a balanced view of mitochondrial respiratory control and a critical discussion on reporting data of mitochondrial respiration in terms of metabolic flows and fluxes. Uniform standards for evaluation of respiratory states and rates will ultimately contribute to reproducibility between laboratories and thus support the development of data repositories of mitochondrial respiratory function in species, tissues, and cells. Clarity of concept and consistency of nomenclature facilitate effective transdisciplinary communication, education, and ultimately further discovery
Impact of COVID-19 on cardiovascular testing in the United States versus the rest of the world
Objectives: This study sought to quantify and compare the decline in volumes of cardiovascular procedures between the United States and non-US institutions during the early phase of the coronavirus disease-2019 (COVID-19) pandemic.
Background: The COVID-19 pandemic has disrupted the care of many non-COVID-19 illnesses. Reductions in diagnostic cardiovascular testing around the world have led to concerns over the implications of reduced testing for cardiovascular disease (CVD) morbidity and mortality.
Methods: Data were submitted to the INCAPS-COVID (International Atomic Energy Agency Non-Invasive Cardiology Protocols Study of COVID-19), a multinational registry comprising 909 institutions in 108 countries (including 155 facilities in 40 U.S. states), assessing the impact of the COVID-19 pandemic on volumes of diagnostic cardiovascular procedures. Data were obtained for April 2020 and compared with volumes of baseline procedures from March 2019. We compared laboratory characteristics, practices, and procedure volumes between U.S. and non-U.S. facilities and between U.S. geographic regions and identified factors associated with volume reduction in the United States.
Results: Reductions in the volumes of procedures in the United States were similar to those in non-U.S. facilities (68% vs. 63%, respectively; p = 0.237), although U.S. facilities reported greater reductions in invasive coronary angiography (69% vs. 53%, respectively; p < 0.001). Significantly more U.S. facilities reported increased use of telehealth and patient screening measures than non-U.S. facilities, such as temperature checks, symptom screenings, and COVID-19 testing. Reductions in volumes of procedures differed between U.S. regions, with larger declines observed in the Northeast (76%) and Midwest (74%) than in the South (62%) and West (44%). Prevalence of COVID-19, staff redeployments, outpatient centers, and urban centers were associated with greater reductions in volume in U.S. facilities in a multivariable analysis.
Conclusions: We observed marked reductions in U.S. cardiovascular testing in the early phase of the pandemic and significant variability between U.S. regions. The association between reductions of volumes and COVID-19 prevalence in the United States highlighted the need for proactive efforts to maintain access to cardiovascular testing in areas most affected by outbreaks of COVID-19 infection
Pervasive gaps in Amazonian ecological research
Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear understanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5,6,7 vast areas of the tropics remain understudied.8,9,10,11 In the American tropics, Amazonia stands out as the world's most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepresented in biodiversity databases.13,14,15 To worsen this situation, human-induced modifications16,17 may eliminate pieces of the Amazon's biodiversity puzzle before we can use them to understand how ecological communities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple organism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region's vulnerability to environmental change. 15%â18% of the most neglected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lost
Pervasive gaps in Amazonian ecological research
Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear understanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5,6,7 vast areas of the tropics remain understudied.8,9,10,11 In the American tropics, Amazonia stands out as the world's most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepresented in biodiversity databases.13,14,15 To worsen this situation, human-induced modifications16,17 may eliminate pieces of the Amazon's biodiversity puzzle before we can use them to understand how ecological communities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple organism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region's vulnerability to environmental change. 15%â18% of the most neglected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lost
Detection of Mycobacterium leprae in collections of environmental water
A hansenĂase Ă uma doenĂa infecciosa crĂnica causada pelo bacilo Mycobacterium leprae. No CearĂ Ă observado o aumento do nĂmero de casos novos de hansenĂase. A infecĂĂo de indivĂduos suscetĂveis acontece principalmente pela inalaĂĂo de bacilos eliminados pelas vias aĂreas superiores de pacientes multibacilares. A transmissĂo Ă influenciada por fatores genĂticos do hospedeiro, estado nutricional e taxa de exposiĂĂo ao M. leprae ou outras micobactĂrias. Acredita-se que o contato com fatores ambientais sejam possĂveis fontes de infecĂĂo, como a Ăgua, o solo e alguns animais. O papel exato do ambiente na dinĂmica de transmissĂo ainda Ă especulativo. Assim, este estudo teve como objetivo avaliar por tĂcnicas de biologia molecular a presenĂa de Ăcidos nucleicos de M. leprae em amostras de Ăguas ambientais coletadas em Ăreas endĂmicas de municĂpios de Estado do CearĂ, assim como cultivar micobactĂrias ambientais nestas mesmas amostras. Foram coletadas amostras de Ăgua de 24 reservatĂrios, sendo coletadas rĂplicas de cada sĂtio selecionado, totalizando 119 amostras. As amostras coletadas foram provenientes de aĂudes, riachos, rios e balneĂrios recreativos. O DNA e RNA total foram extraĂdos atravĂs de kits especĂficos para amostras ambientais de acordo com as recomendaĂĂes do fabricante, seguido de amplificaĂĂo dos Ăcidos nucleicos por PCR e RT-PCR respectivamente, gerando produto de 187pb relativo ao gene gyrA de M. leprae. Em relaĂĂo ao cultivo, as amostras de Ăgua foram descontaminadas e cultivadas em meio Lowestein-Jensen, seguido de identificaĂĂo da espĂcie de micobactĂria por mĂtodo de PRA. O DNA e o RNAm do M. leprae foram detectados em todos os municĂpios estudados. Do total de 119 amostras de Ăgua analisadas, 76 apresentaram positividade para Ăcidos nucleicos de M. leprae (64%). Dentre estas, 23 foram positivas apenas para DNA (30,3%), 24 apenas para RNAm (31,5%) e 29 positivas para ambos os Ăcidos nucleicos (38,2%). O produto de PCR de duas amostras da regiĂo gyrA foi confirmado por sequenciamento e BLAST. Houve uma significĂncia estatĂstica de maior frequĂncia de positividade de DNA e RNAm nos reservatĂrios de Ăgua com temperatua mĂdia de 28,4oC. O cultivo mostrou que alĂm do bacilo M. leprae, as amostras de Ăgua continham espĂcies de micobactĂrias nĂo tuberculosas Este estudo indica presenĂa de DNA e RNAm de M. leprae nas amostras de Ăguas ambientais. Demonstrando, portanto, nĂo somente a existĂncia do bacilo da hansenĂase, mas indica fundamentalmente a presenĂa de bacilos viĂveis, os quais sĂo geneticamente iguais Ă referĂncia de M. leprae em relaĂĂo ao fragmento analisado. Desta forma, os resultados obtidos contribuem para ampliar o conhecimento da dinĂmica de transmissĂo da hansenĂase
INCIDĂNCIA DE HANSENĂASE NO MUNICĂPIO DE MORADA NOVA-CE
A HansenĂase Ă© uma doença infectocontagiosa crĂŽnica causada pelo Mycobacterium leprae, quegeralmente afeta a pele e os nervos perifĂ©ricos, que persiste como um importante problema desaĂșde pĂșblica no Brasil