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1.
Eur Heart J Suppl ; 25(Suppl C): C309-C315, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-37125324

RESUMO

The sodium-glucose co-transporter 2 (SGLT2) inhibitors have been shown to reduce risks of clinical events in patients with heart failure (HF), with early and sustained benefits regardless of ejection fraction, diabetic status, and care setting. As part and parcel of the modern foundational HF therapy, clinicians should be familiar with these drugs, in order to implement their use and limit the potential adverse effects. We present an up-to-date review of current evidence and a practical guide for the prescription of SGLT2 inhibitors in patients with HF, highlighting important elements for patient selection, treatment initiation, dosing, and problem solving.

2.
Hum Mutat ; 41(5): 983-997, 2020 05.
Artigo em Inglês | MEDLINE | ID: mdl-31957178

RESUMO

Bone morphogenetic protein 15 (BMP15) encodes an oocyte factor with a relevant role for folliculogenesis as homodimer or cumulin heterodimer (BMP15-GDF9). Heterozygous BMP15 variants in the precursor or mature peptide had been associated with primary ovarian insufficiency (POI), but the underlying mechanism remains elusive and a double dose of BMP15 was suggested to be required for adequate ovarian reserve. We uncovered two homozygous BMP15 null variants found in two girls with POI and primary amenorrhea. Both heterozygous mothers reported physiological menopause. We then performed western blot, immunofluorescence, and reporter assays to investigate how previously reported missense variants, p.Y235C and p.R329C, located in the precursor or mature domains of BMP15, may affect protein function. The p.R329C variant demonstrates an impaired colocalization with growth/differentiation factor 9 (GDF9) at confocal images and diminished activation of the SMAD pathways at western blot and reporter assays in COV434 follicular cell line. In conclusion, BMP15 null mutations cause POI only in the homozygous state, thus discarding the possibility that isolated BMP15 haploinsufficiency can cause evident ovarian defects. Alternatively, heterozygous BMP15 missense variants may affect ovarian function by interfering with cumulin activity. Our data definitely support the fundamental role of BMP15 in human ovarian folliculogenesis.


Assuntos
Proteína Morfogenética Óssea 15/genética , Estudos de Associação Genética , Predisposição Genética para Doença , Mutação de Sentido Incorreto , Folículo Ovariano/metabolismo , Insuficiência Ovariana Primária/diagnóstico , Insuficiência Ovariana Primária/genética , Adolescente , Alelos , Linhagem Celular , Hibridização Genômica Comparativa , Consanguinidade , Análise Mutacional de DNA , Feminino , Estudos de Associação Genética/métodos , Genótipo , Homozigoto , Humanos , Folículo Ovariano/crescimento & desenvolvimento , Linhagem , Fenótipo , Insuficiência Ovariana Primária/metabolismo , Deleção de Sequência
3.
Hum Mol Genet ; 25(23): 5223-5233, 2016 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-27798098

RESUMO

Premature ovarian insufficiency (POI) is a clinical syndrome defined by a loss of ovarian activity before the age of 40. Its pathogenesis is still largely unknown, but increasing evidences support a genetic basis in most cases. Among these, heterozygous mutations in NOBOX, a homeobox gene encoding a transcription factor expressed specifically by oocyte and granulosa cells within the ovary, have been reported in ∼6% of women with sporadic POI. The pivotal role of NOBOX in early folliculogenesis is supported by findings in knock-out mice. Here, we report the genetic screening of 107 European women with idiopathic POI, recruited in various settings, and the molecular and functional characterization of the identified variants to evaluate their involvement in POI onset. Specifically, we report the identification of two novel and two recurrent heterozygous NOBOX variants in 7 out of 107 patients, with a prevalence of 6.5% (upper 95% confidence limit of 11.17%). Furthermore, immunolocalization, Western Blot and transcriptional assays conducted in either HEK293T or CHO cells revealed that all the studied variants (p.R44L, p.G91W, p.G111R, p.G152R, p.K273*, p.R449* and p.D452N) display variable degrees of functional impairment, including defects in transcriptional activity, autophagosomal degradation, nuclear localization or protein instability. Several variants conserve the ability to interact with FOXL2 in intracellular aggregates. Their inability to sustain gene expression, together with their likely aberrant effects on protein stability and degradation, make the identified NOBOX mutations a plausible cause of POI onset.


Assuntos
Núcleo Celular/genética , Fatores de Transcrição Forkhead/metabolismo , Proteínas de Homeodomínio/genética , Menopausa Precoce/genética , Insuficiência Ovariana Primária/genética , Estabilidade Proteica , Fatores de Transcrição/genética , Adolescente , Adulto , Animais , Células CHO , Cricetulus , Feminino , Proteína Forkhead Box L2 , Fatores de Transcrição Forkhead/genética , Predisposição Genética para Doença , Células HEK293 , Heterozigoto , Humanos , Camundongos , Camundongos Knockout , Pessoa de Meia-Idade , Insuficiência Ovariana Primária/epidemiologia , Insuficiência Ovariana Primária/patologia , Agregados Proteicos/genética
5.
Int J Mol Sci ; 17(8)2016 Aug 12.
Artigo em Inglês | MEDLINE | ID: mdl-27529240

RESUMO

Neurodegenerative diseases may have distinct genetic etiologies and pathological manifestations, yet share common cellular mechanisms underpinning neuronal damage and dysfunction. These cellular mechanisms include excitotoxicity, calcium dysregulation, oxidative damage, ER stress and neuroinflammation. Recent data have identified a dual role in these events for glial cells, such as microglia and astrocytes, which are able both to induce and to protect against damage induced by diverse stresses. Cyclo(His-Pro), a cyclic dipeptide derived from the hydrolytic removal of the amino-terminal pyroglutamic acid residue of the hypothalamic thyrotropin-releasing hormone, may be important in regulating the nature of the glial cell contribution. Cyclo(His-Pro) is ubiquitous in the central nervous system and is a key substrate of organic cation transporters, which are strongly linked to neuroprotection. The cyclic dipeptide can also cross the brain-blood-barrier and, once in the brain, can affect diverse inflammatory and stress responses by modifying the Nrf2-NF-κB signaling axis. For these reasons, cyclo(His-Pro) has striking potential for therapeutic application by both parenteral and oral administration routes and may represent an important new tool in counteracting neuroinflammation-based degenerative pathologies. In this review, we discuss the chemistry and biology of cyclo(His-Pro), how it may interact with the biological mechanisms driving neurodegenerative disease, such as amyotrophic lateral sclerosis, and thereby act to preserve or restore neuronal function.


Assuntos
Doenças Neurodegenerativas/metabolismo , Peptídeos Cíclicos/metabolismo , Animais , Estresse do Retículo Endoplasmático/fisiologia , Humanos , Estresse Oxidativo/fisiologia , Peptídeos Cíclicos/química , Transdução de Sinais
6.
J Cell Sci ; 125(Pt 19): 4543-54, 2012 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-22767515

RESUMO

The insulin receptor substrate protein of 53 kDa (IRSp53) is crucially involved in the formation of filopodia and neurites through mechanisms that have only partially been clarified. We have investigated the role of the small scaffold protein LIN7, which interacts with IRSp53. We found that formation of actin-filled protrusions in neuronal NSC34 cells and neurites in neuroblastoma N2A cells depends on motifs mediating the LIN7:IRSp53 association, as both the coexpression of LIN7 with IRSp53 or the expression of the L27-IRSp53 chimera (a fusion protein between IRSp53 and the LIN7L27 domain for plasma membrane protein complexes association) prevented actin-deficient protrusions induced by overexpressed IRSp53, and enhanced the formation of actin-filled protrusions. The regulatory role of LIN7 in IRSp53-mediated extension of filopodia in neuronal N2A cells was demonstrated by live-cell imaging experiments. Moreover, LIN7 silencing prevented the extension of filopodia and neurites, induced by ectopic expression of IRSp53 or serum starvation, respectively, in undifferentiated and differentiated N2A cells. The expression of full-length IRSp53 or the LIN7ΔPDZ mutant lacking the domain for association with IRSp53 was unable to restore neuritogenesis in LIN7-silenced cells. Conversely, defective neuritogenesis could be rescued by the expression of RNAi-resistant full-length LIN7 or chimeric L27-IRSp53. Finally, LIN7 silencing prevented the recruitment of IRSp53 in Triton X-100-insoluble complexes, otherwise occurring in differentiated cells. Collectively these data indicate that LIN7 is a novel regulator of IRSp53, and that the association of these proteins is required to promote the formation of actin-dependent filopodia and neurites.


Assuntos
Proteínas do Tecido Nervoso/metabolismo , Neuritos/metabolismo , Pseudópodes/metabolismo , Proteínas de Transporte Vesicular/metabolismo , Motivos de Aminoácidos , Animais , Diferenciação Celular/efeitos dos fármacos , Linhagem Celular , Sobrevivência Celular/efeitos dos fármacos , Humanos , Proteínas de Membrana , Camundongos , Proteínas do Tecido Nervoso/química , Neuritos/efeitos dos fármacos , Octoxinol/farmacologia , Ligação Proteica/efeitos dos fármacos , Estrutura Terciária de Proteína , Transporte Proteico/efeitos dos fármacos , Pseudópodes/efeitos dos fármacos , Solubilidade , Proteínas de Transporte Vesicular/química
7.
Children (Basel) ; 11(3)2024 Mar 08.
Artigo em Inglês | MEDLINE | ID: mdl-38539357

RESUMO

The prevalence of scoliosis in people with cystic fibrosis (CF) seems to be greater than in the normal population. Over the last two years, a screening for spinal deformities was carried out in patients with CF aged 5 to 18 years, followed up at the CF regional Centre in Parma (Italy). Forty-three patients (twenty-seven males, mean age: 11.8 ± 4.5 years) were enrolled in the study. Nine patients (20.9%) were diagnosed with scoliosis, with a mean Cobb angle of 20.8 ± 9.4 (12-38°). Five patients (11.6%) were diagnosed with a postural kyphosis attitude and one with pathological fixed kyphosis. All patients with scoliosis and postural kyphosis started daily physiotherapeutic scoliosis-specific exercises (PSSE). Compared to people without CF, the prevalence of scoliosis in our paediatric CF population seems to be higher and more present in males; the curves were thoracic and mostly right-sided. CF disease, hyposthenic postural attitude and sedentary lifestyle can contribute to the pathogenesis of this musculoskeletal alteration. Spinal deformities may negatively affect pulmonary function, resulting in disability, pain and a decreased quality of life. Since the prevention of musculoskeletal deformities is easier than restoration, in CF population targeted screening during growth and interventions, including regular physical exercise, are mandatory.

8.
NPJ Digit Med ; 7(1): 107, 2024 Apr 30.
Artigo em Inglês | MEDLINE | ID: mdl-38688958

RESUMO

Integrating video clips in the discharge process may enhance patients' understanding and awareness of their condition. To determine the effect of video clip-integrated discharge discussion on patient comprehension of atrial fibrillation (AF) and deep vein thrombosis (DVT), and their main complications (stroke and pulmonary embolism), we designed a multicentre, pragmatic, parallel groups, randomised clinical trial, that was conducted at two Emergency Units in Italy. A convenience sample of 144 adult patients (or their caregivers) discharged home with either AF or DVT were randomised to receive standard verbal instructions (control) or video clip-integrated doctor-patient discharge discussion. Participants were guided by the discharging physician through the clip. Mean score for primary outcome (knowledge of the diagnosis and its potential complication) (range 0-18) was 5.87 (95% CI, 5.02-6.72] in the control group and 8.28 (95% CI, 7.27-9.31) in the intervention group (mean difference, -2.41; 95% CI, -3.73 to -1.09; p < 0.001). Among secondary outcomes, mean score for knowledge of the prescribed therapy (range 0-6) was 2.98 (95% CI, 2.57-3.39) in the control group and 3.20 (95% CI, 2.73-3.67) in the study group (mean difference, -0.22; 95% CI, -0.84 to 0.39). Mean score for satisfaction (range 0-12) was 7.34 (95% CI, 6.45-8.23) in the control arm and 7.97 (95% CI, 7.15-8.78) in the intervention arm (mean difference, -0.625; 95% CI -1.82 to 0.57). Initiation rate of newly prescribed anticoagulants was 80% (36/45) in the control group and 90.2% (46/51) in the intervention group. Among 109 patients reached at a median follow up of 21 (IQR 16-28) months, 5.55% (3/54) in the control arm and 1.82% (1/55) in the intervention arm had developed stroke or pulmonary embolism. In this trial, video clip-integrated doctor-patient discharge discussion, improved participants comprehension of AF and DVT and their main complications. Physicians should consider integrating these inexpensive tools during the discharge process of patients with AF or DVT.Trial Registration: ClinicalTrials.gov Identifier "NCT03734406".

9.
J Cell Sci ; 124(Pt 19): 3356-68, 2011 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-21940798

RESUMO

POF1B is a candidate gene for premature ovarian failure (POF); it is mainly expressed in polarised epithelial tissues, but its function in these tissues and the relationship with the disorder are unknown. Here we show colocalisation of POF1B with markers of both adherens and tight junctions in human jejunum. The tight junction localisation was maintained by the human POF1B stably expressed in the MDCK polarised epithelial cell line, whereas it was lost by the POF1B R329Q variant associated with POF. Localisation of apico-basal polarity markers and ultrastructure of the tight junctions were maintained in cells expressing the mutant. However, tight junction assembly was altered, cells were dysmorphic and the monolayer organisation was also altered in three-dimensional culture systems. Moreover, cells expressing the POF1B R329Q variant showed defects in ciliogenesis and cystogenesis as a result of misorientation of primary cilia and mitotic division. All of these defects were explained by interference of the mutant with the content and organisation of F-actin at the junctions. A role for POF1B in the regulation of the actin cytoskeleton was further verified by shRNA silencing of the endogenous protein in human intestinal Caco-2 cells. Taken together, these data indicate that localisation of POF1B to tight junctions has a key role in the organisation of epithelial monolayers by regulating the actin cytoskeleton.


Assuntos
Polaridade Celular/genética , Células Epiteliais/fisiologia , Insuficiência Ovariana Primária/genética , Proteínas/genética , Actinas/metabolismo , Substituição de Aminoácidos , Animais , Células CACO-2 , Forma Celular , Cílios/fisiologia , Cães , Células Epiteliais/metabolismo , Feminino , Técnicas de Silenciamento de Genes , Proteínas de Fluorescência Verde/genética , Proteínas de Fluorescência Verde/metabolismo , Humanos , Jejuno/citologia , Proteínas dos Microfilamentos , Microscopia de Fluorescência , Transporte Proteico , Proteínas/metabolismo , Interferência de RNA , Proteínas Recombinantes de Fusão/genética , Proteínas Recombinantes de Fusão/metabolismo , Junções Íntimas/metabolismo
10.
Artigo em Inglês | MEDLINE | ID: mdl-36361417

RESUMO

In (pre)school, children acquire and deepen their basic motor competencies (BMCs) and interact with peers and friends. BMCs are a central developmental goal in childhood and the prerequisite for participation in sportive aspects of social life. Both motor competencies and social integration are linked to children's health-related quality of life (HRQoL). The aim of the present study was to describe the connection between BMCs, social relationships, and aspects of HRQoL in (pre)school children. In this study, the BMCs of N = 1163 preschool children (M = 5.7 years, SD = 0.57, 52% boys) and N = 880 first and second graders (M = 7.5 years, SD = 0.58, 51% boys) were tested. The children's social integration was assessed by the teachers; the HRQoL was recorded from the parents' perspective. In both preschool and primary school, children with better BMCs also showed higher values in their social integration. Moreover, the results indicated a connection between BMCs and general HRQoL in primary school and BMCs and physical well-being in preschool. As BMCs, social integration, and HRQoL seem to be connected in (pre)school, this should be considered both from developmental and health-oriented perspectives, as well as for physical education (PE) lessons.


Assuntos
Qualidade de Vida , Instituições Acadêmicas , Masculino , Pré-Escolar , Humanos , Criança , Feminino , Inquéritos e Questionários , Educação Física e Treinamento , Integração Social
11.
Int J Cardiol ; 341: 56-59, 2021 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-34454968

RESUMO

BACKGROUND: The sodium-glucose co-transporter-2 (SGLT2) inhibitors dapagliflozin and empagliflozin have been demonstrated to reduce adverse cardiovascular outcomes in patients with heart failure with reduced ejection fraction (HFrEF). Limited data are available characterizing the generalizability of SGLT2 inhibitors treatment in the clinical practice. The aim of the study was to evaluate the proportion of outpatients with HFrEF that would be eligible for SGLT2 inhibitors in a contemporary real-world population. METHODS: We retrospectively evaluated patients with chronic stable HFrEF followed-up at the HF outpatient clinic of our institution. Patients' eligibility was assessed according to the entry criteria of DAPA-HF (dapagliflozin) and EMPEROR-Reduced (empagliflozin) trials and to US Food and Drug Administration (FDA) label criteria (only dapagliflozin). RESULTS: A total of 441 HFrEF patients was enrolled. According to the major inclusion and exclusion criteria from DAPA-HF and EMPEROR-Reduced trials, 198 (45%) patients would be candidates for initiation of both dapagliflozin and empagliflozin, 61 (14%) would be eligible only to dapagliflozin and 23 (5%) only to empagliflozin, without significant differences between diabetic and non-diabetic patients (p = 0.23). Among patients not suitable for gliflozins treatment (159 patients; 36%), the major determinant of ineligibility was the failure to achieve the predefined NT-proBNP inclusion threshold. Excluding NTproBNP as per FDA label criteria, dapagliflozin eligibility increased to 86%. CONCLUSIONS: In our real-world analysis a large proportion of HFrEF patients would be candidates for initiation of SGLT2 inhibitors, supporting its broad generalizability in clinical practice. This would be expected to reduce morbidity and mortality in eligible patients.


Assuntos
Diabetes Mellitus Tipo 2 , Insuficiência Cardíaca , Inibidores do Transportador 2 de Sódio-Glicose , Simportadores , Compostos Benzidrílicos/uso terapêutico , Diabetes Mellitus Tipo 2/diagnóstico , Diabetes Mellitus Tipo 2/tratamento farmacológico , Diabetes Mellitus Tipo 2/epidemiologia , Glucose , Insuficiência Cardíaca/diagnóstico , Insuficiência Cardíaca/tratamento farmacológico , Insuficiência Cardíaca/epidemiologia , Humanos , Estudos Retrospectivos , Sódio , Inibidores do Transportador 2 de Sódio-Glicose/uso terapêutico , Volume Sistólico
12.
Children (Basel) ; 8(1)2021 Jan 17.
Artigo em Inglês | MEDLINE | ID: mdl-33477320

RESUMO

In preschool, children build new contacts and social relationships with other people. They learn to cooperate with their peers and communicate in groups. In addition to social relationships, basic motor competencies (in German: Motorische Basiskompetenzen (MOBAK)) are also seen as a central developmental goal in early childhood and are necessary for participation in the culture of sports and movement. The aim of this paper is to describe the connection between social relationships and basic motor competencies in early childhood. In this present study, the motor competencies of N = 548 preschool children (51% girls, M = 68.0 months, SD = 6.8) were tested in the competence areas of self-movement and object movement. The children's perceived social relationships were recorded from teacher and parent perspectives. The results clearly show a connection between social relationships and motor competencies in early childhood, with a stronger connection observed in boys. This finding is relevant both from a developmental and a health-oriented perspective, as it points to a link between physical and mental health, as well as technical and interdisciplinary competencies, in early childhood.

13.
Front Med (Lausanne) ; 8: 684594, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34778280

RESUMO

Background: Tetanus infection remains a significant complication of wounds. Because most tetanus treatment guidelines rely on anamnestic data collected directly from patients, the congruence between anamnesis and laboratory evidence must be verified, especially in the elderly population. Aim: Assess, in both the geriatric population (>65) and the non-geriatric one, the reliability of anamnestic data for managing patients with tetanus-risk wounds, identified categories of populations most exposed to non-vaccination coverage, and assessed the agreement of the Tetanos Quick Stick (TQS) results with the therapy performed (administration of tetanus vaccine or immunoglobulin). Methods: In this retrospective single-center observational study, patients were asked their immunization status against tetanus vaccination. The decision to administer a vaccine or immunoglobulin was therefore clinical and based on anamnestic criteria. The TQS test was then given to patients who were unaware of their immunity status. Patients who thought they knew it but were not sure were given the TQS test to determine whether the anamnestic collection was supported by the test. The TQS test results were compared with the anamnestic data. Results: Most patients, geriatric and not geriatric, did not know their immune status. Among those who reported knowing their immune status, there was no agreement between the vaccine coverage declared by patients and the TQS test results (p < 0.001), mainly in geriatric patients but also in the control group. Elderly and women had significantly lower positive TQS test results (p < 0.001). There was a statistically significant discrepancy (p < 0.001) between the therapy based on anamnestic data and the TQS test results. Conclusion: The reliability of anamnestic data for the management of patients with tetanus-risk wounds is low and decreases with age, becoming minimal in geriatric patients. Elderly and women are less likely to have an effective vaccination status against tetanus.

14.
JAMA Netw Open ; 4(6): e2111836, 2021 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-34086034

RESUMO

Importance: There is high usage of antibiotics in the emergency department (ED) for children with acute respiratory illnesses. Studies have reported decreased antibiotic use among inpatients with rapid respiratory pathogen (RRP) testing. Objective: To determine whether RRP testing leads to decreased antibiotic use and health care use among children with influenzalike illness (ILI) in an ED. Design, Setting, and Participants: A randomized clinical trial among children aged 1 month to 18 years presenting to an ED with ILI from December 1, 2018, to November 30, 2019, was conducted. Data were analyzed March 23, 2020, to April 2, 2021. All children received a nasopharyngeal swab for RRP testing and were randomized 1:1 to the intervention group or control group (results not given, routine clinical care). Results were available in 45 minutes. Intention-to-treat analyses and modified intention-to-treat (clinician knows results) analyses were conducted using multivariable Poisson regression. Interventions: Rapid respiratory pathogen test results given to clinicians. Main Outcomes and Measures: Antibiotic prescribing was the primary outcome; influenza antiviral prescribing, ED length of stay, hospital admission, and recurrent health care visits were the secondary outcomes. Results: Among 931 ED visits (intervention group, 452 children group and control group, 456 children after exclusion of those not meeting criteria or protocol violations), a total of 795 RRP test results (85%) were positive. The median age of the children was 2.1 years (interquartile range, 0.9-5.6 years); 509 (56%) were boys. Most children (478 [53%]) were Hispanic, 688 children (76%) received government insurance, and 314 (35%) had a high-risk medical condition. In the intention-to-treat intervention group, children were more likely to receive antibiotics (relative risk [RR], 1.3; 95% CI, 1.0-1.7), with no significant differences in antiviral prescribing, medical visits, and hospitalization. In inverse propensity-weighted modified intention-to-treat analyses, children with test results known were more likely to receive antivirals (RR, 2.6; 95% CI, 1.6-4.5) and be hospitalized (RR, 1.8; 95% CI, 1.4-2.5); there was no significant difference in antibiotic prescribing (RR, 1.1; 95% CI, 0.9-1.4). Conclusions and Relevance: The use of RRP testing in the ED for ILI did not decrease antibiotic prescribing in this randomized clinical trial. There is a limited role for RRP pathogen testing in children in this setting. Trial Registration: ClinicalTrials.gov Identifier: NCT03756753.


Assuntos
Influenza Humana/diagnóstico , Unidades de Terapia Intensiva Pediátrica/estatística & dados numéricos , Técnicas de Diagnóstico Molecular/estatística & dados numéricos , Infecções Respiratórias/diagnóstico por imagem , Adolescente , Criança , Pré-Escolar , Cuidados Críticos/métodos , Feminino , Humanos , Lactente , Masculino , Doenças Respiratórias/diagnóstico
15.
J Cardiol ; 78(5): 368-374, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34130874

RESUMO

BACKGROUND: New-onset atrial fibrillation (NOAF), both early (EAF) or late (LAF), may complicate ST-segment elevation myocardial infarction (STEMI). The mechanisms underlying EAF or LAF are poorly described. We investigated atrial branch occlusion and EAF or LAF onset in STEMI patients undergoing primary percutaneous coronary intervention. METHODS: This was a retrospective cohort study including 155 STEMI patients. Patients were divided into 3 groups: sinus rhythm (SR), EAF, or LAF. Clinical characteristics, angiographic features including occlusion of atrial branches, namely ramus ostia cavae superioris (ROCS), atrio-ventricular node artery (AVNA), right intermediate atrial artery (RIAA), and left intermediate atrial artery, were assessed. We also investigated in-hospital adverse events (AEs) and death. RESULTS: Mean age was 63.8±11.9 years; 78.7% were men. NOAF was detected in 22 (14.2%) patients: 10 (6.4%) EAF and 12 LAF (7.7%). Compared to EAF, LAF patients were older (p=0.013), with higher GRACE risk score (p=0.014) and Killip class (p=0.015), depressed ejection fraction (p=0.007), elevated filling pressures (p=0.029), higher C-reactive protein (p=0.014) and more with thrombolysis in myocardial infarction flow <3 (p=0.015). Compared to SR, EAF was associated with higher prevalence of occluded ROCS (p=0.010), AVNA (p=0.005), and RIAA (p<0.001). Moreover, EAF patients had more frequently ≥2 diseased atrial branches than SR (19.5%, p<0.001) and LAF (25%, p<0.030) patients. LAF patients had a higher in-hospital AEs (p=0.019 vs SR; p=0.029 vs EAF) and death (p=0.004 vs SR). CONCLUSIONS: The occlusion of atrial branches is associated with EAF but not LAF following STEMI. LAF patients had worse in-hospital AEs and mortality.


Assuntos
Fibrilação Atrial , Intervenção Coronária Percutânea , Infarto do Miocárdio com Supradesnível do Segmento ST , Idoso , Feminino , Hospitais , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Risco , Infarto do Miocárdio com Supradesnível do Segmento ST/cirurgia
16.
Microvasc Res ; 79(2): 144-9, 2010 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-20079360

RESUMO

We evaluated the effect of an oral glucose tolerance test (OGTT) on the level of biomarkers of vascular remodelling. We enrolled 256 Caucasian overweight healthy subjects (H) and 274 overweight type 2 diabetic patients (D). All patients underwent basal measurements of blood glucose (BG), nitrites/nitrates, adiponectin (ADP), matrix metalloproteinase-2 (MMP-2), and matrix metalloproteinase-9 (MMP-9) before and after OGTT. Nitrites/nitrates decrease was present after 60, 90, 120, and 180 min in both groups. Nitrite/nitrate levels were decreased at baseline, after 30 and 60 min in D group compared to H group. ADP decrease was present after 90, 120, and 180 min, in both groups. ADP levels were lower in D group than in H group during OGTT. MMP-2 increase was present after 60, 90, and 120 min in H group, while MMP-2 increase was observed after 90, 120, and 180 min in D group. MMP-2 levels were higher in D group than in H group during OGTT. MMP-9 increase was present in H group after 60, 90, 120, and 180 min, while MMP-9 increase was observed after 90, 120, and 180 min in D group. MMP-9 levels were higher in D group than in H group during OGTT. Postprandial glycemia induces an acute increase in biomarkers of vascular remodelling.


Assuntos
Biomarcadores/metabolismo , Diabetes Mellitus Tipo 2/metabolismo , Teste de Tolerância a Glucose , Sobrepeso/metabolismo , Glicemia/análise , Feminino , Humanos , Masculino , Metaloproteinase 2 da Matriz/sangue , Metaloproteinase 9 da Matriz/sangue , Pessoa de Meia-Idade , Nitratos/sangue , Nitritos/sangue , Período Pós-Prandial
17.
Microvasc Res ; 80(1): 110-5, 2010 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-20359487

RESUMO

The most adequate way to experimentally reproduce the post-prandial lipemia condition appears to be the administration of a standardized oral fat load (OFL) to fasting patients. We studied the effects of a standardized OFL on markers of vascular remodelling in healthy subjects. We enrolled 286 Caucasians aged >or= 18 of either sex. The OFL was given after a 12-h fast. Blood samples were drawn before and 3, 6, 9 and 12h after the fat load. The following parameters were evaluated: body mass index (BMI), blood glucose (BG), systolic blood pressure (SBP), diastolic blood pressure (DBP), lipid profile, nitrites and nitrates, adiponectin (ADP), metalloproteinase-2 (MMP-2) and metalloproteinase-9 (MMP-9). High density lipoprotein-cholesterol (HDL-C) decrease was present in subjects after 6h. Triglycerides (Tg) change was observed after 6h. Nitrites/nitrates variation was observed after 6 and 9h during OFL. Adiponectin level was decreased after 6 and 9h during OFL. Both MMP-2 and MMP-9 levels were higher after 6h during OFL. We observed that nitrites/nitrates and ADP significantly decreased and MMP-2 and MMP-9 significantly increased after a standardized OFL. Other studies need to confirm the direct acute effects of post-prandial lipemia on vascular damage.


Assuntos
Biomarcadores/sangue , Gorduras na Dieta/farmacologia , Endotélio Vascular/efeitos dos fármacos , Hiperlipidemias/sangue , Adiponectina/sangue , Adulto , Glicemia/efeitos dos fármacos , Glicemia/metabolismo , Colesterol/sangue , HDL-Colesterol/sangue , HDL-Colesterol/efeitos dos fármacos , LDL-Colesterol/sangue , LDL-Colesterol/efeitos dos fármacos , Gorduras na Dieta/administração & dosagem , Endotélio Vascular/fisiopatologia , Feminino , Humanos , Masculino , Metaloproteinase 2 da Matriz/sangue , Metaloproteinase 9 da Matriz/sangue , Pessoa de Meia-Idade , Nitratos/sangue , Nitritos/sangue , Período Pós-Prandial , Triglicerídeos/sangue
18.
J Pharm Pharm Sci ; 13(3): 378-90, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-21092710

RESUMO

PURPOSE: Comparison of the effects of one year treatment with sibutramine compared to placebo on insulin resistance parameters, body weight, glycemic control, and lipid profile, in type 2 diabetic patients. METHODS: Two hundred and forty-six patients with uncontrolled type 2 diabetes mellitus in therapy with different oral hypoglycemic agents or insulin were enrolled in this study and randomised to take sibutramine 10 mg or placebo for one year. We evaluated at baseline, and after 3, 6, 9, and 12 months these parameters: homeostasis model assessment insulin resistance index (HOMA-IR), retinol binding protein-4 (RBP-4), resistin, visfatin, and high sensitivity-C reactive protein (Hs-CRP), body weight, body mass index (BMI), glycated hemoglobin (HbA(1c)), fasting plasma glucose (FPG), post-prandial plasma glucose (PPG), fasting plasma insulin (FPI), total cholesterol (TC), low density lipoprotein-cholesterol (LDL-C), high density lipoprotein-cholesterol (HDL-C), and triglycerides (T(g)). RESULTS: A faster decrease of HOMA-IR, resistin, and RBP-4 was recorded with sibutramine compared to the control group. We observed a significant decrease of Hs-CRP in both groups, and a faster improvement of HbA(1c), FPG and PPG with sibutramine compared to the control group; furthermore we recorded a decrease of FPI, TC, LDL-C, body weight, and BMI in the sibutramine group, but not in the control group. CONCLUSIONS: Sibutramine gave a faster improvement of insulin resistance parameters and glycemic control compared to placebo; furthermore sibutramine gave also an improvement of lipid profile, and body weight.


Assuntos
Depressores do Apetite/uso terapêutico , Índice de Massa Corporal , Ciclobutanos/uso terapêutico , Diabetes Mellitus Tipo 2/complicações , Hemoglobinas Glicadas/análise , Resistência à Insulina , Obesidade/tratamento farmacológico , Adulto , Idoso , Idoso de 80 Anos ou mais , Depressores do Apetite/efeitos adversos , Depressores do Apetite/farmacologia , Glicemia/análise , Peso Corporal/efeitos dos fármacos , Ciclobutanos/efeitos adversos , Ciclobutanos/farmacologia , Diabetes Mellitus Tipo 2/tratamento farmacológico , Diabetes Mellitus Tipo 2/metabolismo , Feminino , Humanos , Hipoglicemiantes/uso terapêutico , Insulina/sangue , Insulina/uso terapêutico , Lipídeos/sangue , Masculino , Pessoa de Meia-Idade , Obesidade/complicações , Obesidade/metabolismo , Resistina/sangue , Adulto Jovem
19.
Endocr J ; 57(9): 777-86, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20683173

RESUMO

Our study wants to evaluate the effects of one year treatment with orlistat plus L-carnitine compared to orlistat alone on body weight, glycemic and lipid control, and insulin resistance state in type 2 diabetic patients. Two hundred and fifty-eight patients with uncontrolled type 2 diabetes mellitus (T2DM) [glycated hemoglobin (HbA(1c)) > 8.0%] in therapy with different oral hypoglycemic agents or insulin were enrolled in this study and randomised to take orlistat 120 mg three times a day plus L-carnitine 2 g one time a day or orlistat 120 mg three times a day. We evaluated at baseline, and after 3, 6, 9, and 12 months these parameters: body weight, body mass index (BMI), HbA(1c), fasting plasma glucose (FPG), post-prandial plasma glucose (PPG), fasting plasma insulin (FPI), homeostasis model assessment insulin resistance index (HOMA-IR), total cholesterol (TC), low density lipoprotein-cholesterol (LDL-C), high density lipoprotein-cholesterol (HDL-C), triglycerides (Tg), retinol binding protein-4 (RBP-4), resistin, visfatin, high sensitivity-C reactive protein (Hs-CRP). We observed a faster, and better decrease of body weight, HbA(1c), FPG, PPG, LDL-C, HOMA-IR with orlistat plus L-carnitine compared to orlistat. A faster improvement of TC, Tg, FPI, resistin, RBP-4, visfatin, and Hs-CRP was reached with orlistat plus L-carnitine compared to orlistat. We can safely conclude that the association of orlistat plus L-carnitine was better than orlistat in improving body weight, glycemic and lipid profile, insulin resistance, and inflammatory parameters and no significant adverse events were recorded.


Assuntos
Fármacos Antiobesidade/administração & dosagem , Carnitina/administração & dosagem , Diabetes Mellitus Tipo 2/tratamento farmacológico , Hipoglicemiantes/administração & dosagem , Resistência à Insulina , Lactonas/administração & dosagem , Peso Corporal/efeitos dos fármacos , Carnitina/efeitos adversos , Diabetes Mellitus Tipo 2/metabolismo , Sinergismo Farmacológico , Quimioterapia Combinada , Feminino , Humanos , Inflamação/prevenção & controle , Lactonas/efeitos adversos , Masculino , Pessoa de Meia-Idade , Obesidade/metabolismo , Orlistate
20.
Clin Exp Hypertens ; 32(5): 245-50, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20662723

RESUMO

The time to achieve a blood pressure (BP) goal < or =130/85 mmHg with a combination versus a conventional monotherapy approach was evaluated in 308 hypertensive patients with metabolic syndrome. They were randomized to valsartan (V) 8 mg/amlodipine (A) 5 mg combination or to V 160 mg monotherapy for 12 weeks and every 2 weeks, there was a titration in nonresponder patients: in the combination group V/A was progressively increased to V 160/A 5 mg; V160/A 7.5 mg; V160/A 10 mg; V 240/A 10 mg, and V 320/A 10 mg. In the monotherapy group, the regimen was progressively modified as following: V 240 mg; V 320 mg; V 320/A 5 mg; V 320/A 7.5 mg, and V 320/A 10 mg. The mean time to achieve the BP goal was shorter in patients randomized to combination therapy compared to those randomized to conventional monotherapy (4.7 +/- 2.7 weeks vs. 7.1 +/- 3.9 weeks, respectively, p < 0.001). The percentage of patients who achieved target BP in the combination approach group statistically exceeded that of the monotherapy treated one already after 2 weeks of treatment (30.5 vs. 14.9%, p < 0.01) and again after 4, 6, 8, and 10 weeks of treatment. Only at 12 weeks the percentage of normalized patients was similar in the two treatment groups (78.8% vs. 75.3%, ns). These results suggest that initial therapy with a V/A combination approach may be more quickly effective than a conventional sequential monotherapy approach in achieving target BP in hypertensive patients with metabolic syndrome.


Assuntos
Anlodipino/uso terapêutico , Hipertensão/tratamento farmacológico , Hipertensão/epidemiologia , Síndrome Metabólica/epidemiologia , Tetrazóis/uso terapêutico , Valina/análogos & derivados , Idoso , Anlodipino/efeitos adversos , Anti-Hipertensivos/efeitos adversos , Anti-Hipertensivos/uso terapêutico , Pressão Sanguínea/fisiologia , Comorbidade , Relação Dose-Resposta a Droga , Quimioterapia Combinada , Feminino , Humanos , Hipertensão/fisiopatologia , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Tetrazóis/efeitos adversos , Fatores de Tempo , Resultado do Tratamento , Valina/efeitos adversos , Valina/uso terapêutico , Valsartana
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