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1.
Public Health ; 234: 91-97, 2024 Jul 05.
Artigo em Inglês | MEDLINE | ID: mdl-38970856

RESUMO

OBJECTIVES: In Burkina Faso, one in every four children under 5 years is stunted. Climate change will exacerbate childhood stunting. Strengthening the health system, particularly the quality of nutrition care at primary health facilities, can minimise the adverse climate effect on stunting. Thus, we examined the quality of nutritional status assessment (QoNA) during curative childcare services in primary health facilities in rural Burkina Faso and its relationship with rainfall-induced childhood stunting. STUDY DESIGN: We conducted a cross-sectional analysis using anthropometric, rainfall, and clinical observation data. METHODS: Our dependent variable was the height-for-age z-score (HAZ) of children under 2 years. Our focal climatic measure was mean rainfall deviation (MRD), calculated as the mean of the difference between 30-year monthly household-level rainfall means and the corresponding months for each child from conception to data collection. QoNA was based on the weight, height, general paleness and oedema assessment. We used a mixed-effect multilevel model and analysed heterogeneity by sex and socio-economic status. RESULTS: Among 5027 young (3-23 months) children (mean age 12 ± 6 months), 21% were stunted (HAZ ≤ -2). The mean MRD was 11 ± 4 mm, and the mean QoNA was 2.86 ± 0.99. The proportion of children in low, medium, and high QoNA areas was 10%, 54%, and 36%, respectively. HAZ showed a negative correlation with MRD. Higher QoNA lowered the negative effect of MRD on HAZ (ß = 0.017, P = 0.003, confidence interval = [0.006, 0.029]). Males and children from poor households benefited less from the moderating effect of QoNA. CONCLUSION: Improving the quality of nutrition assessments can supplement existing efforts to reduce the adverse effects of climate change on children's nutritional well-being.

2.
Eur Heart J ; 43(14): 1416-1424, 2022 04 06.
Artigo em Inglês | MEDLINE | ID: mdl-34910136

RESUMO

AIMS: REVEAL was the first randomized controlled trial to demonstrate that adding cholesteryl ester transfer protein inhibitor therapy to intensive statin therapy reduced the risk of major coronary events. We now report results from extended follow-up beyond the scheduled study treatment period. METHODS AND RESULTS: A total of 30 449 adults with prior atherosclerotic vascular disease were randomly allocated to anacetrapib 100 mg daily or matching placebo, in addition to open-label atorvastatin therapy. After stopping the randomly allocated treatment, 26 129 survivors entered a post-trial follow-up period, blind to their original treatment allocation. The primary outcome was first post-randomization major coronary event (i.e. coronary death, myocardial infarction, or coronary revascularization) during the in-trial and post-trial treatment periods, with analysis by intention-to-treat. Allocation to anacetrapib conferred a 9% [95% confidence interval (CI) 3-15%; P = 0.004] proportional reduction in the incidence of major coronary events during the study treatment period (median 4.1 years). During extended follow-up (median 2.2 years), there was a further 20% (95% CI 10-29%; P < 0.001) reduction. Overall, there was a 12% (95% CI 7-17%, P < 0.001) proportional reduction in major coronary events during the overall follow-up period (median 6.3 years), corresponding to a 1.8% (95% CI 1.0-2.6%) absolute reduction. There were no significant effects on non-vascular mortality, site-specific cancer, or other serious adverse events. Morbidity follow-up was obtained for 25 784 (99%) participants. CONCLUSION: The beneficial effects of anacetrapib on major coronary events increased with longer follow-up, and no adverse effects emerged on non-vascular mortality or morbidity. These findings illustrate the importance of sufficiently long treatment and follow-up duration in randomized trials of lipid-modifying agents to assess their full benefits and potential harms. TRIAL REGISTRATION: International Standard Randomized Controlled Trial Number (ISRCTN) 48678192; ClinicalTrials.gov No. NCT01252953; EudraCT No. 2010-023467-18.


Assuntos
Aterosclerose , Infarto do Miocárdio , Oxazolidinonas , Adulto , Aterosclerose/tratamento farmacológico , Atorvastatina/uso terapêutico , Método Duplo-Cego , Humanos , Infarto do Miocárdio/tratamento farmacológico , Oxazolidinonas/efeitos adversos , Resultado do Tratamento
3.
Philos Trans A Math Phys Eng Sci ; 380(2235): 20210258, 2022 Oct 31.
Artigo em Inglês | MEDLINE | ID: mdl-36088918

RESUMO

The retreat of Arctic sea ice is enabling increased ocean wave activity at the sea ice edge, yet the interactions between surface waves and sea ice are not fully understood. Here, we examine in situ observations of wave spectra spanning 2012-2021 in the western Arctic marginal ice zone (MIZ). Swells exceeding 30 cm are rarely observed beyond 100 km inside the MIZ. However, local wind waves are observed in patches of open water amid partial ice cover during the summer. These local waves remain fetch-limited between ice floes with heights less than 1 m. To investigate these waves at climate scales, we conduct experiments varying wave attenuation and generation in ice with a global model including coupled interactions between waves and sea ice. A weak high-frequency attenuation rate is required to simulate the local waves in observations. The choices of attenuation scheme and wind input in ice have a remarkable impact on the extent of wave activity across ice-covered oceans, particularly in the Antarctic. As well as demonstrating the need for stronger constraints on wave attenuation, our results suggest that further attention should be directed towards locally generated wind waves and their role in sea ice evolution. This article is part of the theme issue 'Theory, modelling and observations of marginal ice zone dynamics: multidisciplinary perspectives and outlooks'.

4.
BMC Public Health ; 22(1): 1507, 2022 08 08.
Artigo em Inglês | MEDLINE | ID: mdl-35941626

RESUMO

BACKGROUND AND OBJECTIVES: Hypertension is one of the leading cardiovascular risk factors with high numbers of undiagnosed and untreated patients in Sub Saharan Africa (SSA). The health systems and affected people are often overwhelmed by the social and economic burden that comes with the disease. However, the research on the economic burden and consequences of hypertension treatment remains scare in SSA. The objective of our review was to compare different hypertension treatment costs across the continent and identify major cost drivers. MATERIAL AND METHODS: Systematic literature searches were conducted in multiple databases (e.g., PubMed, Web of Science, Google Scholar) for peer reviewed articles written in English language with a publication date from inception to Jan. 2022. We included studies assessing direct and indirect costs of hypertension therapy in SSA from a provider or user perspective. The search and a quality assessment were independently executed by two researchers. All results were converted to 2021 US Dollar. RESULTS: Of 3999 results identified in the initial search, 33 were selected for data extraction. Costs differed between countries, costing perspectives and cost categories. Only 25% of the SSA countries were mentioned in the studies, with Nigeria dominating the research with a share of 27% of the studies. We identified 15 results each from a user or provider perspective. Medication costs were accountable for the most part of the expenditures with a range from 1.70$ to 97.06$ from a patient perspective and 0.09$ to 193.55$ from a provider perspective per patient per month. Major cost drivers were multidrug treatment, inpatient or hospital care and having a comorbidity like diabetes. CONCLUSION: Hypertension poses a significant economic burden for patients and governments in SSA. Interpreting and comparing the results from different countries and studies is difficult as there are different financing methods and cost items are defined in different ways. However, our results identify medication costs as one of the biggest cost contributors. When fighting the economic burden in SSA, reducing medication costs in form of subsidies or special interventions needs to be considered. TRIAL REGISTRATION: Registration: PROSPERO, ID CRD42020220957.


Assuntos
Diabetes Mellitus , Hipertensão , África Subsaariana/epidemiologia , Estresse Financeiro , Gastos em Saúde , Humanos , Hipertensão/terapia
5.
J Microsc ; 271(1): 69-83, 2018 07.
Artigo em Inglês | MEDLINE | ID: mdl-29630741

RESUMO

Hyperspectral imaging (HSI) and classification are established methods that are being applied in new ways to the analysis of nanoscale materials in a variety of matrices. Typically, enhanced darkfield microscopy (EDFM)-based HSI data (also known as image datacubes) are collected in the wavelength range of 400-1000 nm for each pixel in a datacube. Utilising different spectral library (SL) creation methods, spectra from pixels in the datacube corresponding to known materials can be collected into reference spectral libraries (RSLs), which can be used to classify materials in datacubes of experimental samples using existing classification algorithms. In this study, EDFM-HSI was used to visualise and analyse industrial cerium oxide (CeO2 ; ceria) nanoparticles (NPs) in rat lung tissues and in aqueous suspension. Rats were exposed to ceria NPs via inhalation, mimicking potential real-world occupational exposures. The lung tissues were histologically prepared: some tissues were stained with hematoxylin and eosin (H&E) and some were left unstained. The goal of this study was to determine how HSI and classification results for ceria NPs were influenced by (1) the use of different RSL creation and classification methods and (2) the application of those methods to samples in different matrices (stained tissue, unstained tissue, or aqueous solution). Three different RSL creation methods - particle filtering (PF), manual selection, and spectral hourglass wizard (SHW) - were utilised to create the RSLs of known materials in unstained and stained tissue, and aqueous suspensions, which were then used to classify the NPs in the different matrices. Two classification algorithms - spectral angle mapper (SAM) and spectral feature fitting (SFF) - were utilised to determine the presence or absence of ceria NPs in each sample. The results from the classification algorithms were compared to determine how each influenced the classification results for samples in different matrices. The results showed that sample matrix and sample preparation significantly influenced the NP classification thresholds in the complex matrices. Moreover, considerable differences were observed in the classification results when utilising each RSL creation and classification method for each type of sample. Results from this study illustrate the importance of appropriately selecting HSI algorithms based on specific material and matrix characteristics in order to obtain optimal classification results. As HSI is increasingly utilised for NP characterisation for clinical, environmental and health and safety applications, this investigation is important for further refining HSI protocols while ensuring appropriate data collection and analysis.


Assuntos
Cério/química , Nanopartículas Metálicas/classificação , Microscopia/métodos , Animais , Técnicas Histológicas , Pulmão/efeitos dos fármacos , Pulmão/patologia , Masculino , Nanopartículas Metálicas/química , Ratos , Água
6.
J Occup Environ Hyg ; 15(6): D45-D50, 2018 06.
Artigo em Inglês | MEDLINE | ID: mdl-29580184

RESUMO

Emerging and novel technologies, materials, and information integrated into increasingly automated and networked manufacturing processes or into traditional manufacturing settings are enhancing the efficiency and productivity of manufacturing. Globally, there is a move toward a new era in manufacturing that is characterized by: (1) the ability to create and deliver more complex designs of products; (2) the creation and use of materials with new properties that meet a design need; (3) the employment of new technologies, such as additive and digital techniques that improve on conventional manufacturing processes; and (4) a compression of the time from initial design concept to the creation of a final product. Globally, this movement has many names, but "advanced manufacturing" has become the shorthand for this complex integration of material and technology elements that enable new ways to manufacture existing products, as well as new products emerging from new technologies and new design methods. As the breadth of activities associated with advanced manufacturing suggests, there is no single advanced manufacturing industry. Instead, aspects of advanced manufacturing can be identified across a diverse set of business sectors that use manufacturing technologies, ranging from the semiconductors and electronics to the automotive and pharmaceutical industries. The breadth and diversity of advanced manufacturing may change the occupational and environmental risk profile, challenge the basic elements of comprehensive health and safety (material, process, worker, environment, product, and general public health and safety), and provide an opportunity for development and dissemination of occupational and environmental health and safety (OEHS) guidance and best practices. It is unknown how much the risk profile of different elements of OEHS will change, thus requiring an evolution of health and safety practices. These changes may be accomplished most effectively through multi-disciplinary, multi-sector, public-private dialogue that identifies issues and offers solutions.


Assuntos
Indústria Manufatureira/métodos , Saúde Ocupacional , Saúde Ambiental/métodos , Indústria Manufatureira/tendências , Segurança
7.
Anaesthesist ; 67(2): 109-117, 2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-29302698

RESUMO

BACKGROUND: Airway management during resuscitation is pivotal for treating hypoxia and inducing reoxygenation. This German Resuscitation Registry (GRR) analysis investigated the influence of the type of airway used in patients treated with manual chest compression (mCC) and automated chest compression devices (ACCD) after out-of-hospital cardiac arrest (OHCA). METHODS: Out of 42,977 patients (1 January 2010-30 June 2016) information on outcome, airway management and method of chest compressions were available for 27,544 patients. Hospital admission under cardiopulmonary resuscitation (CPR), hospital admission with return of spontaneous circulation (ROSC), hospital discharge and discharge with cerebral performance categories 1 and 2 (CPC 1,2) were used to compare outcome in patients treated with mCC vs. ACCD, and classified by endotracheal intubation (ETI), initial supraglottic airway device (SAD) changed into ETI, and only SAD use. RESULTS: Outcomes for hospital admission under ongoing CPR, hospital admission with ROSC, hospital discharge and neurologically intact survival (CPC 1,2) for mCC (84.8%) vs. ACCD (15.2%) groups were: 8.4/38.6%, 39.2/27.2%, 10.6/6.8%, 7.9/4.7% (p < 0.001), respectively. Only mCC with SAD/ETI for ever ROSC (OR 1.466, 95% CI: 1.353-1.588, p < 0.001) and mCC group with SAD/ETI for hospital admission with ROSC showed better outcomes (odds ratio [OR] 1.277, 95% confidence interval [CI]: 1.179-1.384, p < 0.001) in comparison to mCC treated with ETI. Compared to mCC/ETI, all other groups were associated with a decrease in neurologically intact survival. CONCLUSION: Better outcomes were found for mCC in comparison to ACCD and ETI showed better outcomes in comparison to SAD only. This observational registry study raised the hypothesis that SAD only should be avoided or SAD should be changed into ETI, independent of whether mCC or ACCD is used.


Assuntos
Manuseio das Vias Aéreas/métodos , Reanimação Cardiopulmonar/métodos , Parada Cardíaca Extra-Hospitalar/terapia , Idoso , Idoso de 80 Anos ou mais , Manuseio das Vias Aéreas/estatística & dados numéricos , Reanimação Cardiopulmonar/estatística & dados numéricos , Serviços Médicos de Emergência , Feminino , Alemanha/epidemiologia , Humanos , Intubação Intratraqueal , Masculino , Pessoa de Meia-Idade , Parada Cardíaca Extra-Hospitalar/epidemiologia , Intervenção Coronária Percutânea , Estudos Prospectivos , Sistema de Registros , Estudos Retrospectivos
8.
Pharmacogenomics J ; 17(2): 137-145, 2017 03.
Artigo em Inglês | MEDLINE | ID: mdl-26856248

RESUMO

Variation in the expression level and activity of genes involved in drug disposition and action ('pharmacogenes') can affect drug response and toxicity, especially when in tissues of pharmacological importance. Previous studies have relied primarily on microarrays to understand gene expression differences, or have focused on a single tissue or small number of samples. The goal of this study was to use RNA-sequencing (RNA-seq) to determine the expression levels and alternative splicing of 389 Pharmacogenomics Research Network pharmacogenes across four tissues (liver, kidney, heart and adipose) and lymphoblastoid cell lines, which are used widely in pharmacogenomics studies. Analysis of RNA-seq data from 139 different individuals across the 5 tissues (20-45 individuals per tissue type) revealed substantial variation in both expression levels and splicing across samples and tissue types. Comparison with GTEx data yielded a consistent picture. This in-depth exploration also revealed 183 splicing events in pharmacogenes that were previously not annotated. Overall, this study serves as a rich resource for the research community to inform biomarker and drug discovery and use.


Assuntos
Processamento Alternativo , Biologia Computacional , Sequenciamento de Nucleotídeos em Larga Escala , Farmacogenética , Variantes Farmacogenômicos , Análise de Sequência de RNA , Transcriptoma , Tecido Adiposo/metabolismo , Linhagem Celular , Bases de Dados Genéticas , Genótipo , Humanos , Rim/metabolismo , Fígado/metabolismo , Miocárdio/metabolismo , Fenótipo
9.
Herz ; 42(1): 107-120, 2017 Feb.
Artigo em Alemão | MEDLINE | ID: mdl-28105480

RESUMO

Heart failure remains a frequent cause of death and is the leading reason for hospitalization in Germany although therapeutic options have significantly increased over the past years particularly in heart failure with reduced ejection fraction. Clinical symptoms are usually preceded by cardiac remodeling, which was originally defined only by left ventricular dilatation and depressed function but is also associated with typical cellular and molecular processes. Healing after acute myocardial infarction is characterized by inflammation, cellular migration and scar formation. Cardiac remodeling is accompanied by adaptive changes of the peripheral cardiovascular system. Since prevention is the primary goal, rapid diagnosis and treatment of myocardial infarction are mandatory. Early reperfusion therapy limits infarct size and enables the best possible preservation of left ventricular function. Standard pharmacotherapy includes angiotensin-converting enzyme inhibitors, angiotensin-1-receptor blockers and beta blockers. In addition, mineralocorticoid receptor antagonists have proven beneficial. Compounds specifically targeting infarct healing processes are currently under development.


Assuntos
Infarto do Miocárdio/diagnóstico , Infarto do Miocárdio/terapia , Disfunção Ventricular Esquerda/diagnóstico , Disfunção Ventricular Esquerda/terapia , Remodelação Ventricular , Medicina Baseada em Evidências , Humanos , Infarto do Miocárdio/fisiopatologia , Resultado do Tratamento , Disfunção Ventricular Esquerda/fisiopatologia
10.
Anaesthesist ; 66(2): 128-133, 2017 Feb.
Artigo em Alemão | MEDLINE | ID: mdl-28091756

RESUMO

The available data on the effectiveness of therapeutic hypothermia in different patient groups are heterogeneous. Although the benefits have been proven for some collectives, recommendations for the use of hypothermia treatment in other groups are based on less robust data and conclusions by analogy. This article gives a review of the current evidence of temperature management in all age groups and based on this state of knowledge, recommends active temperature management with the primary aim of strict normothermia (36-36.5 °C) for 72 hours after cardiopulmonary arrest or severe traumatic brain injury for children beyond the neonatal period.


Assuntos
Temperatura Corporal , Lesões Encefálicas Traumáticas/terapia , Parada Cardíaca/terapia , Hipotermia Induzida/métodos , Adolescente , Envelhecimento , Criança , Pré-Escolar , Cuidados Críticos/normas , Humanos , Lactente
11.
Anaesthesist ; 66(5): 340-346, 2017 May.
Artigo em Alemão | MEDLINE | ID: mdl-28455650

RESUMO

Preclinical pediatric emergencies are rare events and are therefore often associated with stress and uncertainty for emergency medical service personnel. To ensure adequate treatment of pediatric patients a variety of different cognitive aids exist (e.g. books, apps, rulers, weight-adapted bag systems). Especially the size specifications of the medical equipment and the dosage of emergency medication are individually very different in children and are dependent on parameters, such as body height and weight. Therefore, cognitive aids often enable length measurement whereby it is possible to draw conclusions on body weight for calculating the child's medication dosage. These aids may help to avoid the wrong medication dose or the wrong therapy of children but uncritical and untrained usage of these aids carries a potential risk of mistakes. This recommendation gives an overview of the general requirements and different problems of cognitive aids and should help improve the general framework and the rational basis for the use and further development of cognitive aids in emergency medicine.


Assuntos
Recursos Audiovisuais/estatística & dados numéricos , Serviços Médicos de Emergência/métodos , Pediatria/métodos , Adolescente , Estatura , Peso Corporal , Criança , Pré-Escolar , Consenso , Humanos , Lactente , Recém-Nascido , Erros de Medicação/prevenção & controle , Preparações Farmacêuticas/administração & dosagem
12.
Anaesthesist ; 64(4): 261-70, 2015 Apr.
Artigo em Alemão | MEDLINE | ID: mdl-25893579

RESUMO

BACKGROUND: Approximately 18 million patients are treated in German hospitals annually. On the basis of internationally published data the number of in-hospital cardiac arrests can be estimated as 54,000 per year. A structured treatment of in-hospital resuscitation according to the current scientific evidence is essential. AIM: In-hospital resuscitation shows some special characteristics in comparison to resuscitation in emergency services, which are highlighted in this article. MATERIAL AND METHODS: This article is based on the international guidelines for cardiopulmonary resuscitation (CPR) first published in 1992 by the European Resuscitation Council (ERC) and the American Heart Association (AHA) as well as the amendments (current version 2010). Some current studies are also presented, which could not be taken into consideration for the guidelines from 2010. RESULTS: High quality chest compressions with as few interruptions as possible are of utmost importance. Patients with cardiac rhythms which can be defibrillated should be defibrillated within less than 2 min after the collapse. There is no evidence that equipping hospitals with automated external defibrillators is an advantage for survival after in-hospital cardiac arrest. Endotracheal intubation represents the gold standard of airway management during CPR. During in-hospital resuscitation experienced anesthesiologists are mostly involved; however, the use of supraglottic airway devices may help to minimize interruptions in chest compressions especially before the medical emergency team arrives at the scene. Feedback devices may improve the quality of manual chest compressions; however, most devices overestimate the compression depth if the patient is resuscitated when lying in bed. There is no evidence that mechanical chest compression devices improve the outcome after cardiac arrest. Mild therapeutic hypothermia is still recommended for neuroprotection after successful in-hospital resuscitation. CONCLUSION: The prevention of cardiac arrest is of special importance. Uniform and low threshold criteria for alarming the medical emergency team have to be defined to be able to identify and treat critically ill patients in time before cardiac arrest occurs.


Assuntos
Reanimação Cardiopulmonar/normas , Parada Cardíaca/terapia , Manuseio das Vias Aéreas , Cardioversão Elétrica , Guias como Assunto , Parada Cardíaca/epidemiologia , Parada Cardíaca/mortalidade , Mortalidade Hospitalar , Humanos , Resultado do Tratamento
13.
Herz ; 39(1): 8-14, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-24509867

RESUMO

Dyspnea is the uncomfortable awareness of difficult breathing. It is a common symptom in primary and nonprimary care settings. Although multiple disorders and diseases may cause breathlessness, the majority of the conditions are of cardiac or pulmonary origin. The challenge is to establish the diagnosis timely and with minimized investigations. Frequently, information about onset, progression, and circumstances of occurrence considerably narrow the underlying etiology. In most cases, a carefully taken history and a comprehensive physical examination lead to the correct diagnosis. Nevertheless, one should be aware of concomitant conditions and not be satisfied with a diagnosis if comorbidity may still be a candidate in causing dyspnea. Otherwise, it has been observed that chronic obstructive pulmonary disease was over-diagnosed in patients with systolic heart failure and dyspnea. A prudential use of investigating modalities for confirmation and exclusion of a questionable diagnosis is the key for allocating the correct therapy and achieving fast symptom relief in patients with dyspnea.


Assuntos
Dispneia/diagnóstico , Dispneia/etiologia , Cardiopatias/complicações , Cardiopatias/diagnóstico , Pneumopatias/complicações , Pneumopatias/diagnóstico , Testes de Função Respiratória/métodos , Diagnóstico Diferencial , Testes de Função Cardíaca/métodos , Humanos
14.
Nat Genet ; 10(1): 67-76, 1995 May.
Artigo em Inglês | MEDLINE | ID: mdl-7647794

RESUMO

The Huntington's disease (HD) gene encodes a novel protein with as yet no known function. In order to identify the functionally important domains of this protein, we have cloned and sequenced the homologue of the HD gene in the pufferfish, Fugu rubripes. The Fugu HD gene spans only 23 kb of genomic DNA, compared to the 170 kb human gene, and yet all 67 exons are conserved. The first coding exon, the site of the disease-causing triplet repeat, is highly conserved. However, the glutamine repeat in Fugu consists of just four residues. We also show that gene order may be conserved over longer stretches of the two genomes. Our work describes a detailed example of sequence comparison between human and Fugu, and illustrates the power of the pufferfish genome as a model system in the analysis of human genes.


Assuntos
Peixes Venenosos/genética , Doença de Huntington/genética , Proteínas do Tecido Nervoso/genética , Proteínas Nucleares/genética , Homologia de Sequência , Sequência de Aminoácidos , Animais , Clonagem Molecular , Códon/genética , Sequência Conservada , DNA Complementar , Éxons , Humanos , Proteína Huntingtina , Camundongos , Dados de Sequência Molecular , Sequências Repetitivas de Ácido Nucleico , Alinhamento de Sequência
15.
Nat Genet ; 16(1): 79-83, 1997 May.
Artigo em Inglês | MEDLINE | ID: mdl-9140399

RESUMO

The clustered organization of Hox genes provides a powerful opportunity to examine gene gain and loss in evolution because physical linkage is a key diagnostic feature which allows homology to be established unambiguously. Furthermore, Hox genes play a key role in determination of axial and appendicular skeletal morphology and may be a key component of the evolution of diverse metazoan body forms. Despite suggestions that changes in Hox gene number played a role in evolution of metazoan body plans, there has been a general lack of evidence for such variation amongst gnathostomes (or indeed any vertebrate) and it has therefore been widely assumed that differential regulation may be the key element in all vertebrate Hox evolution. We have studied the Hox gene clusters of a teleost fish, Fugu rubripes, to test the possibility that Hox organization may have varied since the origin of jawed vertebrates. We have identified four Hox complexes in Fugu and found an unprecedented degree of variation when compared with tetrapod clusters. Our data show that: Fugu clusters are widely variant with respect to length; at least nine genes have been lost; there is a new group-2 paralogue; and pseudo-gene remnants of group-1 and group-3 paralogues were found in the Hoxc complex, when compared with the present mammalian clusters. We show that gene loss after duplication of the prototypical vertebrate Hox clusters is a key feature of both tetrapod and fish evolution.


Assuntos
Proteínas de Ligação a DNA , Evolução Molecular , Peixes Venenosos/genética , Variação Genética , Proteínas de Homeodomínio/genética , Família Multigênica/genética , Sequência de Aminoácidos , Animais , Clonagem Molecular , Sequência Conservada , Genes Homeobox , Ligação Genética , Proteínas de Homeodomínio/classificação , Hibridização In Situ/métodos , Dados de Sequência Molecular , Reação em Cadeia da Polimerase , Análise de Sequência de DNA , Fatores de Transcrição/genética , Vertebrados/genética
16.
Child Abuse Negl ; 140: 106155, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-37004459

RESUMO

OBJECTIVES: This study is meant to put a focus on the prevalence of emotional abuse in low-income states like the Sub-Saharan region. METHODOLOGY: Searching PubMed, Google scholar, and web of science during February and April 2021 a total of 2264 articles were identified, 27 met the inclusion criteria. We added the results of 13 VAC (Violence Against Children and Youth) studies, conducted by UNICEF capturing information about experienced sexual, physical, or emotional violence in 13-24-year-olds, as well as 56 MIC (Multiple Indicator Cluster) studies, conducted by the CDC to research the disciplinary methods used with children aged 1-14 years in the past month by older household members. Finally, in a meta-analytic approach, we aimed to calculate a pooled estimate of the prevalence. RESULTS: The included studies depicted a wide range in prevalence rates across countries. For example, while the VAC study in Lesotho in 2018 showed low incidence rates of emotional violence (6.9 % Females, 3.8 % Males), the average prevalence recorded by the MIC study was as high as 57.8 % for females and 59.2 % for males. On average, the MIC studies displayed a higher incidence and the discrepancy of prevalence of emotional abuse between females and males was small. Calculating a pooled estimate of the prevalence was not possible, due to the heterogeneity of the data. CONCLUSIONS: In general countries displayed a high prevalence. A standardized use of a uniform definition of emotional abuse might help to display a more homogenous data set in the future, giving the opportunity for pooled estimates of prevalence.


Assuntos
Abuso Emocional , Violência , Masculino , Feminino , Adolescente , Humanos , Criança , África Subsaariana/epidemiologia , Comportamento Sexual , Prevalência
17.
Herz ; 37(6): 590-6, 2012 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-22930390

RESUMO

Remodelling is the adaptive or maladaptive response to cardiac overload or injury resulting in changes of size and function of the heart. The final pathway of maladaptive or adverse cardiac remodelling is the evolution of heart failure or sudden cardiac death. In coronary artery disease, ischemic injury leads to changes in the cellular and extra-cellular architecture of the infarcted and non-infarcted region resulting in cavity enlargement and loss of contractility of the entire heart. During the last three decades, potential therapeutic concepts have been established and reversal of adverse remodelling could be demonstrated in up-to end-stage disease. A further understanding of the underlying cellular, extracellular, molecular and genetic alterations in ischemic remodelling should reveal other promising targets for prevention and reversal of remodelling.


Assuntos
Doença da Artéria Coronariana/complicações , Doença da Artéria Coronariana/fisiopatologia , Ventrículos do Coração/fisiopatologia , Modelos Cardiovasculares , Disfunção Ventricular Esquerda/etiologia , Disfunção Ventricular Esquerda/fisiopatologia , Remodelação Ventricular/fisiologia , Humanos
18.
Klin Padiatr ; 224(2): 53-60, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22187331

RESUMO

The IL-10 family of cytokines consists of 9 members, including the immune-regulatory IL-10; Il19 is in close physical relationship with Il10 in the so-called IL-10 cytokine cluster on chromosome 1q32. While IL-10 is ubiquitously expressed, IL-19 expression is restricted to myeloid and epithelial cells. Little is known about molecular mechanisms that control tissue-specific expression of IL-10, and IL-19. Modifications in CpG-DNA methylation are a key mechanism in controlling transcription. Using bisulfite sequencing, we demonstrate that murine Il19 is methylated in CD4+ T lymphocytes. Macrophages display site-specific demethylation of Il19. The ubiquitously expressed Il10 gene is methylated to a lower degree and exhibits tissue-specific methylation patterns. DNA demethylation with 5-azacytidine resulted in an induction of IL-10, and IL-19 expression in CD4+ T cells, and CpG-DNA methylation through DNMT3a resulted in transcriptional silencing in macrophages. Thus, our findings suggest a role of CpG-DNA methylation in the regulation of Il10 and Il19.


Assuntos
Linfócitos T CD4-Positivos/metabolismo , Ilhas de CpG/genética , Metilação de DNA/genética , Expressão Gênica/genética , Interleucina-10/genética , Interleucinas/genética , Macrófagos/metabolismo , Animais , Formação de Anticorpos/efeitos dos fármacos , Formação de Anticorpos/genética , Azacitidina/farmacologia , Cromossomos Humanos Par 1/genética , DNA (Citosina-5-)-Metiltransferases/genética , DNA Metiltransferase 3A , Inibidores Enzimáticos/farmacologia , Epigênese Genética/genética , Células Epiteliais/metabolismo , Expressão Gênica/efeitos dos fármacos , Humanos , Imunogenética , Ativação Linfocitária/genética , Camundongos , Camundongos Endogâmicos C57BL , Células Mieloides/metabolismo , Especificidade de Órgãos , Proteínas Repressoras/genética
19.
Minerva Ginecol ; 64(5): 361-73, 2012 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-23018476

RESUMO

Peripartum cardiomyopathy (PPCM) is a rare disease of the heart muscle that affects women with previously unknown heart diseases during pregnancy or in the first months after delivery. Cardinal symptoms are dyspnoea and fluid retention. However, tachycardia, cardiogenic thromboembolism and other clinical signs of cardiac dysfunction may also herald this uncommon cause of heart failure. The estimated incidence of PPCM shows large regional variations: in Europe and the United States it is between 1:2000 and 1:4000. The markedly higher incidence rates observed in Haitian or South African women (up to 1:300) suggest that genetic or environmental factors may play a pathogenetic role. However, the underlying aetiology of PPCM still is unclear. Besides genetic susceptibility an abnormal autoimmune response against cardiac tissue components, viral infections or an irregular activity of cathepsin D generating a potentially cardio-toxic splice variant of prolactin have been discussed. New therapeutic strategies as immune modulation or prolactin inhibition were therefore suggested, but are not yet established. Treatment strategies focus on the standard therapies for heart failure and its complications. During pregnancy heart failure therapy is limited to substances without fetotoxic effects. But even with optimal heart failure therapy the course of the disease exhibits large variations ranging from full recovery to deterioration of heart function and even early cardiac death. This review cumulates the current knowledge on PPCM and aims to raise awareness for this rare and potentially life-threatening disorder amongst all medical professionals involved in the care for pregnant women.


Assuntos
Cardiomiopatias , Transtornos Puerperais , Cardiomiopatias/diagnóstico , Cardiomiopatias/etiologia , Feminino , Insuficiência Cardíaca/tratamento farmacológico , Humanos , Gravidez , Complicações Cardiovasculares na Gravidez/tratamento farmacológico , Prognóstico , Transtornos Puerperais/diagnóstico , Transtornos Puerperais/etiologia
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