ANÁLISE COMPARATIVA DO USO DE INIBIDORES DA ALFA-GLUCOSIDASE E DE INIBIDORES DA DPP-4 NO TRATAMENTO DA DIABETES TIPO 2

Considering the growing impact of type 2 diabetes on global public health, there is a justified need to explore effective therapeutic approaches. This study aimed to conduct a comparative analysis between alpha-glucosidase inhibitors and DPP-4 inhibitors, both used in the management of type 2 diabetes. To this end, a qualitative bibliographic review was conducted, covering multiple languages, using databases such as Scielo, Google Scholar, scientific journals, repositories, and virtual libraries. Inclusion and exclusion criteria were applied to select relevant studies that addressed the efficacy, side effects, mechanisms of action, and impact on glycemic control of these inhibitors. It was observed that DPP-4 inhibitors, such as Sitagliptin and Saxagliptin, are effective in reducing fasting glucose and glycated hemoglobin (HbA1C), in addition to presenting a favorable safety profile. On the other hand, alpha-glucosidase inhibitors, such as Acarbose, stand out in reducing postprandial glucose but are frequently associated with adverse gastrointestinal effects such as flatulence and diarrhea. It is concluded that both classes of drugs have their specific advantages, with DPP-4 inhibitors being more effective in reducing HbA1C and better tolerated, while alpha-glucosidase inhibitors are particularly useful for controlling postprandial glucose. The choice of treatment should be individualized, considering the efficacy, tolerability, and specific needs of patients. Future studies may explore therapeutic combinations to maximize benefits and minimize adverse effects, as well as investigate treatments based on genetic characteristics and specific biomarkers for a more personalized management of type 2 diabetes.Considerando o crescente impacto da diabetes tipo 2 na saúde pública global, justifica-se a necessidade de explorar abordagens terapêuticas eficazes. Este estudo objetivou realizar uma análise comparativa entre inibidores da alfa-glucosidase e inibidores da DPP-4, ambos utilizados no manejo da diabetes tipo 2. Para tanto, procedeu-se a uma revisão bibliográfica qualitativa, abrangendo múltiplos idiomas, utilizando bases de dados como Scielo, Google Acadêmico, revistas científicas, repositórios e bibliotecas virtuais. Critérios de inclusão e exclusão foram aplicados para selecionar estudos relevantes que abordassem a eficácia, efeitos colaterais, mecanismos de ação e impacto no controle glicêmico desses inibidores. Observou-se que os inibidores da DPP-4, como Sitagliptina e Saxagliptina, são eficazes na redução da glicemia de jejum e na hemoglobina glicada (HbA1C), além de apresentarem um perfil de segurança favorável. Por outro lado, os inibidores da alfa-glucosidase, como a Acarbose, destacam-se na redução da glicemia pós-prandial, mas são frequentemente associados a efeitos gastrointestinais adversos, como flatulência e diarreia. Conclui-se que ambas as classes de medicamentos têm suas vantagens específicas, sendo os inibidores da DPP-4 mais eficazes na redução da HbA1C e melhor tolerados, enquanto os inibidores da alfa-glucosidase são particularmente úteis para controlar a glicemia pós-prandial. A escolha do tratamento deve ser individualizada, considerando a eficácia, a tolerabilidade e as necessidades específicas dos pacientes. Estudos futuros podem explorar combinações terapêuticas para maximizar os benefícios e minimizar os efeitos adversos, bem como investigar tratamentos baseados em características genéticas e biomarcadores específicos para um manejo mais personalizado da diabetes tipo 2. &nbsp

ANÁLISE COMPARATIVA DO USO DE INIBIDORES DA BOMBA DE PRÓTONS E DE ANTAGONISTAS DOS RECEPTORES H2 NO TRATAMENTO DA GASTRITE

Considering the high prevalence of gastritis and its significant impact on patients' quality of life, this research was justified to understand and compare the efficacy and safety of the two main groups of drugs used in the treatment of gastritis: proton pump inhibitors (PPIs) and H2 receptor antagonists (H2RAs). The objectives were to review and synthesize the existing scientific literature on the efficacy and safety of PPIs and H2RAs, compare their mechanisms of action, side effects, and clinical outcomes, identify best practices for the use of each therapeutic class in different clinical scenarios, and provide evidence-based recommendations to guide the choice of the most appropriate treatment for patients with gastritis. To this end, a qualitative bibliographic review was conducted, utilizing databases such as Scielo, Google Scholar, scientific journals, academic repositories, and virtual libraries, including materials published in multiple languages. Thus, it was observed that PPIs demonstrated greater efficacy in suppressing acid secretion and healing gastric lesions, but with a long-term safety profile that includes potential serious side effects. H2 receptor antagonists, although less potent, presented a relatively better safety profile. It was concluded that, although PPIs are generally preferred for severe acid hypersecretion conditions, the choice between PPIs and H2RAs should consider the individual risks and benefits for each patient, in addition to their specific clinical conditions.Considerando a alta prevalência da gastrite e seu impacto significativo na qualidade de vida dos pacientes, justificou-se a realização desta pesquisa para compreender e comparar a eficácia e segurança dos dois principais grupos de medicamentos utilizados no tratamento da gastrite: os inibidores da bomba de prótons (IBPs) e os antagonistas dos receptores H2. Objetivou-se revisar e sintetizar a literatura científica existente sobre a eficácia e segurança dos IBPs e dos antagonistas dos receptores H2, comparar seus mecanismos de ação, efeitos colaterais e desfechos clínicos, identificar as melhores práticas para a utilização de cada classe terapêutica em diferentes cenários clínicos, e fornecer recomendações baseadas em evidências para guiar a escolha do tratamento mais apropriado para pacientes com gastrite. Para tanto, procedeu-se a uma revisão bibliográfica qualitativa, utilizando bases de dados como Scielo, Google Acadêmico, revistas científicas, repositórios acadêmicos e bibliotecas virtuais, incluindo materiais publicados em múltiplos idiomas. Desse modo, observou-se que os IBPs demonstraram maior eficácia na supressão da secreção ácida e na cicatrização de lesões gástricas, porém com um perfil de segurança a longo prazo que inclui potenciais efeitos colaterais graves. Os antagonistas dos receptores H2, embora menos potentes, apresentaram um perfil de segurança relativamente melhor. Concluiu-se que, embora os IBPs sejam geralmente preferidos para condições graves de hipersecreção ácida, a escolha entre IBPs e antagonistas H2 deve considerar os riscos e benefícios individuais para cada paciente, além de suas condições clínicas específicas

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,5–7 vast areas of the tropics remain understudied.8–11 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 underrepre sented in biodiversity databases.13–15 To worsen this situation, human-induced modifications16,17 may elim inate pieces of the Amazon’s 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 region’s vulnerability to environmental change. 15%–18% 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

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%–18% 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%–18% 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

Measurement of Energy Correlators inside Jets and Determination of the Strong Coupling Formula Presented

Energy correlators that describe energy-weighted distances between two or three particles in a hadronic jet are measured using an event sample of $\sqrt{s}$=13 TeV proton-proton collisions collected by the CMS experiment and corresponding to an integrated luminosity of 36.3 fb$^{−1}$. The measured distributions are consistent with the trends in the simulation that reveal two key features of the strong interaction: confinement and asymptotic freedom. By comparing the ratio of the measured three- and two-particle energy correlator distributions with theoretical calculations that resum collinear emissions at approximate next-to-next-to-leading-logarithmic accuracy matched to a next-to-leading-order calculation, the strong coupling is determined at the Z boson mass: α$_S$ (m$_Z$)=0.1229 $\frac{0.0040}{-0.0050}$ , the most precise α$_S$m$_Z$ value obtained using jet substructure observable

Measurement of the polarizations of prompt and non-prompt J/ψ and ψ (2S) mesons produced in pp collisions at s\sqrt{s} = 13 TeV

The polarizations of prompt and non-prompt J∕ψ and ψ(2S) mesons are measured in proton-proton collisions at √ = 13 TeV, using data samples collected by the CMS experiment in 2017 and 2018, corresponding to a total integrated luminosity of 103.3 fb$^{−1}$. Based on the analysis of the dimuon decay angular distributions in the helicity frame, the polar anisotropy, , is measured as a function of the transverse momentum, $_T$, of the charmonium states, in the 25–120 and 20–100 GeV ranges for the J∕ψ and ψ(2S), respectively. The non-prompt polarizations agree with predictions based on the hypothesis that, for T ≳ 25 GeV, the non-prompt J∕ψ and ψ(2S) are predominantly produced in two-body B meson decays. The prompt results clearly exclude strong transverse polarizations, even for $_T$ exceeding 30 times the J∕ψ mass, where tends to an asymptotic value around 0.3. Taken together with previous measurements, by CMS and LHCb at √ = 7 TeV, the prompt polarizations show a significant variation with $_T$, at low $_T$

Search for a vector-like quark T′ → tH via the diphoton decay mode of the Higgs boson in proton-proton collisions at s \sqrt{s} = 13 TeV

A search for the electroweak production of a vector-like quark T′, decaying to a top quark and a Higgs boson is presented. The search is based on a sample of proton-proton collision events recorded at the LHC at = 13 TeV, corresponding to an integrated luminosity of 138 fb−1. This is the first T′ search that exploits the Higgs boson decay to a pair of photons. For narrow isospin singlet T′ states with masses up to 1.1 TeV, the excellent diphoton invariant mass resolution of 1–2% results in an increased sensitivity compared to previous searches based on the same production mechanism. The electroweak production of a T′ quark with mass up to 960 GeV is excluded at 95% confidence level, assuming a coupling strength κT = 0.25 and a relative decay width Γ/MT′ < 5%

Search for heavy neutral leptons in final states with electrons, muons, and hadronically decaying tau leptons in proton-proton collisions at s \sqrt{s} = 13 TeV

A search for heavy neutral leptons (HNLs) of Majorana or Dirac type using proton-proton collision data at = 13 TeV is presented. The data were collected by the CMS experiment at the CERN LHC and correspond to an integrated luminosity of 138 fb−1. Events with three charged leptons (electrons, muons, and hadronically decaying tau leptons) are selected, corresponding to HNL production in association with a charged lepton and decay of the HNL to two charged leptons and a standard model (SM) neutrino. The search is performed for HNL masses between 10 GeV and 1.5 TeV. No evidence for an HNL signal is observed in data. Upper limits at 95% confidence level are found for the squared coupling strength of the HNL to SM neutrinos, considering exclusive coupling of the HNL to a single SM neutrino generation, for both Majorana and Dirac HNLs. The limits exceed previously achieved experimental constraints for a wide range of HNL masses, and the limits on tau neutrino coupling scenarios with HNL masses above the W boson mass are presented for the first time