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1.
Eur J Investig Health Psychol Educ ; 13(11): 2516-2528, 2023 Nov 03.
Artigo em Inglês | MEDLINE | ID: mdl-37998065

RESUMO

Diabetes has detrimental effects on many organs, including the kidneys, heart, and the central nervous system, with ophthalmic involvement and Diabetic Retinopathy (DR), specifically, being among the most severe and prominent consequences. Diabetic Retinopathy and especially advanced stages of the disease, have a crucial impact on patients' quality of life and emotional status. In this context, emotional imbalance, psychological side effects and comorbidities, like anxiety disorders, could emerge, deteriorating the patients' condition further. A number of questionnaires can be employed in the evaluation of the potential impact of Diabetic Retinopathy on patients' quality of life, including the Beck Anxiety Inventory (BAI) and The National Eye Institute Visual Function Questionnaire-25 (NEI VFQ-25). PURPOSE: The purpose of this study was to evaluate the association of Diabetic Retinopathy (DR) and diabetic macular edema with vision-related quality of life, as well as the potential association between the disease's severity, emotional status of patients and the manifestation of anxiety and psychological features. RESULTS: Patients with fundoscopic findings had significantly lower scores in all VFQ-25 subscales, indicating worse quality of life in comparison to patients without DR. Severity of DR, greater levels of anxiety, daily sitting time, unemployment and lower education level, were all found to be significantly, negatively associated with a worse quality of life. Regarding emotional status, more years of suffering from diabetes, treatment with insulin and the hours being idle per day were associated with an increased burden of anxiety. In addition, the presence of a concomitant disease, findings in fundoscopy, diabetic macular edema and treatment with anti-VEFG injections, as well as the number of doses, were significantly associated with greater anxiety. Multivariate analysis showed that having Severe Non-Proliferative Diabetic Retinopathy or having Proliferative Diabetic Retinopathy and receiving insulin therapy (alone or in combination with another treatment), were significantly associated with higher levels of anxiety. CONCLUSION: The well-established impact of DR on the patients' well-being, quality of life and emotional status render DR and CME prevention, stabilization or delaying progression as a necessity in order to protect patients from developing psychiatric symptoms. On the other hand, the speculated bi-directional association between emotional problems and DR progression highlights the importance of acknowledging and dealing with psychological issues with the aim of delaying DR progression.

2.
Trends Endocrinol Metab ; 33(11): 755-768, 2022 11.
Artigo em Inglês | MEDLINE | ID: mdl-36171155

RESUMO

Nonalcoholic fatty liver disease (NAFLD) is a worldwide rising challenge because of hepatic, but also extrahepatic, complications. Thyroid hormones are master regulators of energy and lipid homeostasis, and the presence of abnormal thyroid function in NAFLD suggests pathogenic relationships. Specifically, persons with hypothyroidism feature dyslipidemia and lower hepatic ß-oxidation, which favors accumulation of triglycerides and lipotoxins, insulin resistance, and subsequently de novo lipogenesis. Recent studies indicate that liver-specific thyroid hormone receptor ß agonists are effective for the treatment of NAFLD, likely due to improved lipid homeostasis and mitochondrial respiration, which, in turn, may contribute to a reduced risk of NAFLD progression. Taken together, the possible coexistence of thyroid disease and NAFLD calls for increased awareness and optimized strategies for mutual screening and management.


Assuntos
Hepatopatia Gordurosa não Alcoólica , Humanos , Hepatopatia Gordurosa não Alcoólica/etiologia , Glândula Tireoide , Receptores beta dos Hormônios Tireóideos/metabolismo , Lipogênese , Fígado/metabolismo , Triglicerídeos/metabolismo
3.
Microorganisms ; 10(4)2022 Mar 30.
Artigo em Inglês | MEDLINE | ID: mdl-35456802

RESUMO

Among other factors, food intolerance is cardinal in triggering irritable bowel syndrome (IBS) symptoms in a significant percentage of patients. As a result, specific dietary patterns are the first-line therapeutic approach. The low-FODMAP diet (LFD) is gaining ground as the most well-documented diet intervention that significantly reduces IBS symptoms. Though the LFD improves symptoms, the diet's impact on intestinal low-grade inflammation, one of the cardinal mechanisms contributing to symptom development, remains doubtful. On the other hand, the Mediterranean diet (MedDiet) is recommended for chronic low-grade inflammation-related diseases because of its anti-inflammatory properties, derived predominantly from olive oil and phenolic compounds. Thus far, the role of a modified LFD, enriched with the MedDiet's anti-inflammatory components, has not been evaluated in IBS patients. This review aims to examine the hypothesis of a potential combination of the immunomodulatory effects of the MedDiet with the LFD to improve IBS symptoms.

5.
J Cardiovasc Pharmacol ; 78(1): e12-e19, 2021 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-34001719

RESUMO

ABSTRACT: Epidemiological studies indicate that diabetes is the second most common comorbidity in COVID-19 (coronavirus disease 2019). Dapagliflozin, a sodium-glucose co-transporter 2 inhibitor, exerts direct cardioprotective and nephroprotective effects. DARE-19 (Dapagliflozin in Respiratory Failure in Patients With COVID-19), an ongoing clinical trial, is designed to investigate the impact of dapagliflozin on COVID-19 progression. This article discusses the potential favorable impact of dapagliflozin on COVID-19 and its complications.


Assuntos
Compostos Benzidrílicos/uso terapêutico , Tratamento Farmacológico da COVID-19 , Diabetes Mellitus Tipo 2/tratamento farmacológico , Glucosídeos/uso terapêutico , Inibidores do Transportador 2 de Sódio-Glicose/uso terapêutico , Compostos Benzidrílicos/efeitos adversos , COVID-19/diagnóstico , COVID-19/mortalidade , Ensaios Clínicos Fase III como Assunto , Comorbidade , Diabetes Mellitus Tipo 2/diagnóstico , Diabetes Mellitus Tipo 2/mortalidade , Progressão da Doença , Glucosídeos/efeitos adversos , Humanos , Ensaios Clínicos Controlados Aleatórios como Assunto , Inibidores do Transportador 2 de Sódio-Glicose/efeitos adversos , Resultado do Tratamento
6.
Am J Cardiovasc Drugs ; 21(2): 123-137, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-32780214

RESUMO

The prevalence of arterial hypertension is high in patients with diabetes mellitus (DM). When DM and hypertension coexist, they constitute a dual cardiovascular threat and should be adequately controlled. Novel antihyperglycemic agents, including sodium-glucose co-transporter 2 (SGLT-2) inhibitors, glucagon-like peptide-1 receptor agonists (GLP-1 RAs), and dipeptidyl peptidase-4 (DPP-4) inhibitors, have recently been used in the treatment of DM. Beyond their glucose-lowering effects, these drugs have shown beneficial pleiotropic cardiovascular effects, including lowering of arterial blood pressure (BP), as acknowledged in the 2019 European Society of Cardiology/European Association for the Study of Diabetes guidelines on diabetes, prediabetes, and cardiovascular diseases. The purpose of this review was to summarize the available information on the BP-reducing effects of these new glucose-lowering drug classes and provide a brief report on underlying pathophysiological mechanisms. We also compare the three drug classes (SGLT-2 inhibitors, GLP-1 RAs, and DPP-4 inhibitors) in terms of their BP-lowering effect and show that the greater BP reduction seems to be achieved with SGLT-2 inhibitors, whereas DPP-4 inhibitors have probably the mildest antihypertensive effect.


Assuntos
Pressão Sanguínea/efeitos dos fármacos , Diabetes Mellitus Tipo 2/tratamento farmacológico , Hipertensão/tratamento farmacológico , Hipoglicemiantes/farmacologia , Hipoglicemiantes/uso terapêutico , Animais , Pressão Arterial/efeitos dos fármacos , Inibidores da Dipeptidil Peptidase IV/farmacologia , Inibidores da Dipeptidil Peptidase IV/uso terapêutico , Receptor do Peptídeo Semelhante ao Glucagon 1/agonistas , Humanos , Metanálise como Assunto , Ensaios Clínicos Controlados Aleatórios como Assunto , Inibidores do Transportador 2 de Sódio-Glicose/farmacologia , Inibidores do Transportador 2 de Sódio-Glicose/uso terapêutico
7.
Molecules ; 25(22)2020 Nov 10.
Artigo em Inglês | MEDLINE | ID: mdl-33182705

RESUMO

We determined whether plasma concentrations of the receptor for advanced glycation end products (RAGE) and the soluble (s) form of RAGE (sRAGE) in healthy individuals and patients with type 2 diabetes (T2D) modulate vascular remodeling. Healthy individuals and patients with T2D were divided into two age groups: young = <35 years old or middle-aged (36-64 years old) and stratified based on normal glucose tolerance (NGT), impaired (IGT), and T2D. Plasma titers of sRAGE, the RAGE ligands, AGEs, S100B, S100A1, S100A6, and the apoptotic marker Fas ligand Fas(L) were measured by enzyme-linked immunosorbent assay (ELISA). The apoptotic potential of the above RAGE ligands and sRAGE were assessed in cultured adult rat aortic smooth muscle cells (ASMC). In NGT individuals, aging increased the circulating levels of AGEs and S100B and decreased sRAGE, S100A1 and S100A6. Middle-aged patients with T2D presented higher levels of circulating S100B, AGEs and FasL, but lower levels of sRAGE, S100A1 and S100A6 than individuals with NGT or IGT. Treatment of ASMC with either AGEs or S100B at concentrations detected in T2D patients increased markers of inflammation and apoptosis. Responses attenuated by concomitant administration of sRAGE. In middle-aged patients with T2D, lower circulating plasma levels of sRAGE may limit decoy and exogenous trapping of deleterious pro-apoptotic/pro-inflammatory RAGE ligands AGEs and S100B, increasing the risk for diabetic complications.


Assuntos
Apoptose , Diabetes Mellitus Tipo 2/sangue , Ligantes , Receptor para Produtos Finais de Glicação Avançada/sangue , Receptor para Produtos Finais de Glicação Avançada/química , Adulto , Fatores Etários , Idoso , Animais , Antropometria , Proteínas de Ciclo Celular/metabolismo , Células Cultivadas , Endotélio Vascular/metabolismo , Proteína Ligante Fas/metabolismo , Feminino , Teste de Tolerância a Glucose , Humanos , Inflamação , Masculino , Pessoa de Meia-Idade , Músculo Liso Vascular/citologia , Miócitos de Músculo Liso , Ratos , Proteína A6 Ligante de Cálcio S100/metabolismo , Subunidade beta da Proteína Ligante de Cálcio S100/metabolismo , Proteínas S100/metabolismo , Transdução de Sinais , Receptor fas/metabolismo
8.
BMC Endocr Disord ; 20(1): 16, 2020 Jan 28.
Artigo em Inglês | MEDLINE | ID: mdl-31992275

RESUMO

BACKGROUND: Strict glycaemic control early in the treatment process has been shown to reduce the occurrence of micro- and macro- vascular complications of diabetes in the long-term. Thus, treatment guidelines advise early intensification of treatment to achieve glycaemic control goals. However, evidence in Greece suggests that, despite guideline recommendations, glycaemic control among patients with T2DM remains challenging. This study presents the demographic and clinical characteristics of patients with T2DM in Greece using data from an electronic registry designed specifically for this treatment category and investigates the factors that are independently associated with glycaemic control. METHODS: This is a multi-center, observational, cross-sectional study to investigate epidemiological and clinical factors affecting glycaemic control among patients with T2DM in Greece. Data was collected via a web-based disease registry, the Diabetes Registry, which operated from January 1st to December 31st, 2017. Five large specialized diabetes centers operating in Greek hospitals participated in the study. RESULTS: Data for 1141 patients were retrieved (aged 63.02 ± 12.65 years, 56.9% male). Glycaemic control (Hb1Ac < 7%) was not achieved in 57.1% of patients. Factors independently associated with poor glycaemic control were: family history of diabetes [OR: 1.53, 95% CI: 1.06-2.23], BMI score between 25 to 30 [OR: 2.08, 95% CI: 1.05-4.13] or over 30 [OR: 2.12, 95% CI 1.12-4.07], elevated LDL levels [OR: 1.53, 95% 1.06-2.21] and low HDL levels [OR: 2.12, 95% CI: 1.44-3.12]. Lastly, use of injectable antidiabetic agents (in monotherapy or in combination) was less likely to be associated with poor glycaemic control versus treatment with combination of oral and injectable agents [OR: 0.50, 95% CI: 0.24-1.01]. This association was found to be marginally statistically significant. CONCLUSION: Inadequate lipid control, family history of diabetes and presence of obesity (ΒΜΙ ≥ 30 kg/m2) were associated with poor glycaemic control among study sample, whereas use of injectable antidiabetic agents was less likely to be associated with poor glycaemic control. These findings indicate how complex optimal glycaemic control is, highlighting the need for tailored interventions in high-risk subpopulations with T2DM.


Assuntos
Biomarcadores/análise , Diabetes Mellitus Tipo 2/tratamento farmacológico , Hiperglicemia/prevenção & controle , Hipoglicemia/prevenção & controle , Hipoglicemiantes/uso terapêutico , Glicemia/análise , Estudos Transversais , Feminino , Seguimentos , Hemoglobinas Glicadas/análise , Humanos , Hiperglicemia/patologia , Hipoglicemia/patologia , Masculino , Pessoa de Meia-Idade , Prognóstico , Sistema de Registros
9.
Am J Hypertens ; 33(3): 207-213, 2020 03 13.
Artigo em Inglês | MEDLINE | ID: mdl-31541572

RESUMO

Sodium glucose cotransporter 2 (SGLT2) inhibitors represent a novel class of oral antihyperglycemic drugs that have been approved over the last decade for the management of type 2 diabetes mellitus. Except the glucose-lowering effects, robust evidence also suggests that SGLT2 inhibitors confer benefits in cardiovascular system. The purpose of this review was to investigate the effects of SGLT2 inhibitors across the spectrum of arterial hypertension.


Assuntos
Anti-Hipertensivos/uso terapêutico , Pressão Arterial/efeitos dos fármacos , Hipertensão/tratamento farmacológico , Inibidores do Transportador 2 de Sódio-Glicose/uso terapêutico , Animais , Humanos , Hipertensão/diagnóstico , Hipertensão/fisiopatologia , Resultado do Tratamento
10.
Artigo em Inglês | MEDLINE | ID: mdl-31322077

RESUMO

BACKGROUND: Obesity is a global epidemic which is associated with several cardiometabolic comorbidities and is characterized by chronic, low grade systemic inflammation. Numerous biomarkers have been implicated in the pathophysiology of the disease, including transcription factors and coregulators. Steroid Receptor Coactivator (SRC)-family represent the master regulators of metabolic pathways and their dysregulation is strongly associated with numerous metabolic disorders. METHODS: 50 morbidly obese patients participated in the present study. Biopsies were collected from visceral adipose tissue, subcutaneous adipose tissue, skeletal muscle, extra-myocellular adipose tissue and liver. We evaluated the differential protein expression of NFATc1, SRC-2/TIF-2, SRC-3/AIB-1 and inflammatory biomarkers CD68 and CD3 by immunohistochemistry. The current study was designed to determine any correlations between the transcription factor NFATc1 and the SRC coregulators, as well as any associations with the inflammatory biomarkers. RESULTS: We identified SRC-3 as a hepatic NFATc1 coactivator and we demonstrated its possible role in energy homeostasis and lipid metabolism. Moreover, we revealed a complex and extensive intraand inter-tissue network among the three main investigated proteins and the inflammatory biomarkers, suggesting their potential participation in the obesity-induced inflammatory cascade. CONCLUSION: Steroid receptor coactivators are critical regulators of human metabolism with pleiotropic and tissue-specific actions. We believe that our study will contribute to the better understanding of the complex multi-tissue interactions that are disrupted in obesity and can therefore lead to numerous cardiometabolic diseases. Further on, our present findings suggest that SRC-3/AIB-1 could constitute possible future drug targets.


Assuntos
Mediadores da Inflamação/metabolismo , Fígado/metabolismo , Fatores de Transcrição NFATC/metabolismo , Coativador 3 de Receptor Nuclear/metabolismo , Obesidade Mórbida/metabolismo , Tecido Adiposo/metabolismo , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Músculo Esquelético/metabolismo , Obesidade Mórbida/diagnóstico
11.
Exp Clin Endocrinol Diabetes ; 128(11): 723-730, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-31461765

RESUMO

OBJECTIVE: Women with polycystic ovary syndrome (PCOS) have higher circulating levels of C-reactive protein, but the relationship between inflammation and endocrine function in PCOS remains poorly understood. Thus, this study aimed to investigate the association between low-grade inflammation and sex hormones in women with PCOS. DESIGN AND PATIENTS: A comprehensive panel of biomarkers of inflammation was measured in serum of 63 women with PCOS using proximity extension assay technology. Associations of 65 biomarkers with sex hormones were assessed without and with adjustment for age and body mass index (BMI). RESULTS: In the unadjusted analysis, 20 biomarkers were positively correlated with 17-OH-progesterone (17-OH-P), 14 with prolactin and 6 with free testosterone, whereas inverse associations were found for 16 biomarkers with sex hormone-binding globulin (SHBG), 6 with luteinizing hormone (LH) and 6 with estrogen (all p<0.05). Among the positive associations, correlations were mainly found for five chemokines (CXCL11, CCL4, MCP-4/CCL13, CXCL5, CXCL6) and for VEGF-A, LAP-TGFß1, TNFSF14 and MMP-1. Inverse associations with sex hormones were mainly present for two chemokines (CXCL1, MCP-2/CCL8), CDCP1, CST5 and CSF-1. Adjustment for age and BMI reduced the number of biomarker associations for SHBG and estrogen, but had hardly any impact on associations with 17-OH-P, prolactin, free testosterone and LH. CONCLUSION: Women with PCOS feature BMI-independent associations between biomarkers of inflammation and certain sex steroid and hypophyseal hormones. Most of these inflammation-related biomarkers were chemokines, which may be relevant as potential mediators of the increased cardiometabolic risk of women with PCOS.


Assuntos
Índice de Massa Corporal , Quimiocinas/sangue , Hormônios Esteroides Gonadais/sangue , Inflamação/sangue , Síndrome do Ovário Policístico/sangue , Adulto , Estrogênios/sangue , Feminino , Humanos , Hormônio Luteinizante/sangue , Progesterona/sangue , Prolactina/sangue , Globulina de Ligação a Hormônio Sexual/metabolismo , Testosterona/sangue
12.
Am J Obstet Gynecol ; 221(5): 429-436.e5, 2019 11.
Artigo em Inglês | MEDLINE | ID: mdl-31132340

RESUMO

BACKGROUND: Several articles have implied that progestogen supplementation during pregnancy to reduce the risk of preterm birth may increase the risk for developing gestational diabetes mellitus. OBJECTIVE: The purpose of the present meta-analysis was to accumulate existing evidence concerning this correlation. DATA SOURCES: We searched Medline (1966-2019), Scopus (2004-2019), Clinicaltrials.gov (2008-2019), EMBASE (1980-2019), Cochrane Central Register of Controlled Trials CENTRAL (1999-2019), and Google Scholar (2004-2019) databases. STUDY ELIGIBILITY CRITERIA: Randomized trials and observational studies were considered eligible for inclusion in the present meta-analysis. To minimize the possibility of article losses, we avoided language, country, and date restrictions. STUDY APPRAISAL AND SYNTHESIS METHODS: The methodological quality of included studies was evaluated with the Cochrane risk of bias and the Risk Of Bias In Non-Randomized Studies of Interventions (ROBINS-I) tool. Meta-analysis was performed with the RevMan 5.3 and secondary analysis with the Open Meta-Analyst software. Trial sequential analysis was conducted with the trial sequential analysis program. RESULTS: Overall, 11 studies were included in the present meta-analysis that recruited 8085 women. The meta-analysis revealed that women who received 17-alpha hydroxyprogesterone caproate had increased the risk of developing gestational diabetes mellitus (risk ratio, 1.73, 95% confidence interval, 1.32-2.28), whereas women who received vaginal progesterone had a decreased risk, although the effect did not reach statistical significance because of the unstable estimate of confidence intervals (risk ratio, 0.82, 95% confidence interval, 0.50-1.12). Meta-regression analysis indicated that neither the methodological rationale for investigating the prevalence of gestational diabetes mellitus (incidence investigated as primary or secondary outcome) (coefficient of covariance, -0.36, 95% confidence interval, -0.85 to 0.13, P = .154) nor the type of investigated study (randomized controlled trial/observational) (coefficient of covariance -0.361, 95% confidence interval, -1.049 to 0.327, P = .304) significantly altered the results of the primary analysis. Trial sequential analysis suggested that the meta-analysis concerning the correlation of 17-alpha hydroxyprogesterone caproate was of adequate power to reach firm conclusions, whereas this was not confirmed in the case of vaginal progesterone. CONCLUSION: The results of the present meta-analysis clearly indicate that women who receive supplemental 17-alpha hydroxyprogesterone caproate for the prevention of preterm birth have an increased risk of developing gestational diabetes mellitus. On the other hand, evidence concerning women treated with vaginal progesterone remains inconclusive.


Assuntos
17-alfa-Hidroxiprogesterona/efeitos adversos , Diabetes Gestacional/induzido quimicamente , Nascimento Prematuro/prevenção & controle , Progestinas/efeitos adversos , 17-alfa-Hidroxiprogesterona/administração & dosagem , Administração Intravaginal , Feminino , Humanos , Gravidez , Progesterona/administração & dosagem , Progesterona/efeitos adversos , Progestinas/administração & dosagem
13.
Exp Ther Med ; 17(4): 3071-3076, 2019 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-30906479

RESUMO

Immunological abnormalities have been implicated in schizophrenia. On the other hand, antipsychotics may exert immunomodulatory effects, by triggering pro-inflammatory and anti-inflammatory agents through complex homeostatic mechanisms, which seem to be implicated in medication responsiveness and in the presence or not of adverse effects. There is evidence that olanzapine, a second generation antipsychotic, may increase synapse formation and neurogenesis through alterations in the levels of cytokines and neurotrophic factors. In the present study, we recruited 14 drug-naive inpatients with first-episode schizophrenia (male:female ratio, 7:7) with a mean age of 26.5 years. The positive and negative syndrome scale (PANSS) scores and serum levels of a broad spectrum of cytokines and of brain-derived neurotrophic factor (BDNF) were recorded twice, once at baseline prior to the initiation of olanzapine treatment and 8 weeks later, once the dose of olanzapine had stabilized. Subsequently, the associations between the PANSS scores and the measured markers were examined. Correlation analyses revealed that follow-up PANSSnegative positively correlated with baseline interleukin (IL)-6 (ρ=0.685, P=0.007) and baseline IL-27 levels (ρ=0.785, P=0.001). Furthermore, the percentage change in PANSSnegative [(PANSS-follow-up - PANSS-baseline)/PANSS-baseline; ΔPANSSnegative%)] positively correlated with baseline IL-27 (ρ=0.785, P=0.001) and baseline IL-6 levels (ρ=0.685, P=0.007). Finally, linear regression revealed that follow-up PANSSnegative was associated with baseline IL-27 (R2=0.301, P=0.042), ΔPANSSnegative% was associated with baseline IL-6 (R2=0.301, P=0.042) and baseline IL-27 levels (R2=0.446, P=0.009). Thus, these findings indicate that IL-27 and IL-6 may be trait markers in patients being administered olanzapine monotherapy at the onset of schizophrenia. However, further studies are warranted in order to replicate these associations and to confirm their potential use as biomarkers of treatment effectiveness and safety, as well as to explore novel immunomodulatory strategies for the treatment of schizophrenia.

14.
Hellenic J Cardiol ; 60(5): 282-293, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30138744

RESUMO

OBJECTIVE: PGC-1α is already known as a significant regulator of mitochondrial biogenesis, oxidative phosphorylation and fatty acid metabolism. Our study focuses on the role of PGC1α in morbid obesity, in five different tissues, collected from 50 severely obese patients during planned bariatric surgery. METHODS: The investigated tissues included subcutaneous adipose tissue (SAT), visceral adipose tissue (VAT), skeletal muscle (SM), extramyocellular adipose tissue (EMAT) and liver. PGC1α expression was investigated with immunohistochemistry and evaluated with microscopy. RESULTS: Our findings highlighted significant positive inter-tissue correlations regarding PGC-1α expression between several tissue pairs (VAT-SAT, VAT-SM, VAT-EMAT, SAT-SM, SAT-EMAT, SM-EMAT). Moreover, we found significant negative correlations between PGC1α expression in VAT with CD68 expression in skeletal muscle and EMAT, implying a possible protective role of PGC1α against obesity-induced inflammation. CONCLUSION: Unmasking the inter-tissue communication networks regarding PGC-1α expression in morbid obesity, will give more insight into its significant role in obesity-induced diseases. PGC1α could potentially represent a future preventive and therapeutic target against obesity-induced disease, probably through enhancing mitochondrial biogenesis and metabolism.


Assuntos
Biomarcadores/metabolismo , Obesidade Mórbida/metabolismo , Coativador 1-alfa do Receptor gama Ativado por Proliferador de Peroxissomo/metabolismo , Tecido Adiposo/metabolismo , Tecido Adiposo/ultraestrutura , Adulto , Antígenos CD/metabolismo , Antígenos de Diferenciação Mielomonocítica/metabolismo , Cirurgia Bariátrica/métodos , Diabetes Mellitus/epidemiologia , Diabetes Mellitus/etiologia , Ácidos Graxos/metabolismo , Feminino , Humanos , Imuno-Histoquímica/métodos , Inflamação/metabolismo , Gordura Intra-Abdominal/metabolismo , Gordura Intra-Abdominal/ultraestrutura , Masculino , Síndrome Metabólica/epidemiologia , Síndrome Metabólica/etiologia , Pessoa de Meia-Idade , Mitocôndrias/metabolismo , Mitocôndrias/ultraestrutura , Músculo Esquelético/metabolismo , Músculo Esquelético/ultraestrutura , Obesidade Mórbida/complicações , Obesidade Mórbida/epidemiologia , Obesidade Mórbida/cirurgia , Fosforilação Oxidativa , Receptores Ativados por Proliferador de Peroxissomo/metabolismo
15.
J Pharmacol Exp Ther ; 367(1): 155-167, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-30076265

RESUMO

Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a complex disease characterized by debilitating fatigue, lasting for at least 6 months, with associated malaise, headaches, sleep disturbance, and cognitive impairment, which severely impacts quality of life. A significant percentage of ME/CFS patients remain undiagnosed, mainly due to the complexity of the disease and the lack of reliable objective biomarkers. ME/CFS patients display decreased metabolism and the severity of symptoms appears to be directly correlated to the degree of metabolic reduction that may be unique to each individual patient. However, the precise pathogenesis is still unknown, preventing the development of effective treatments. The ME/CFS phenotype has been associated with abnormalities in energy metabolism, which are apparently due to mitochondrial dysfunction in the absence of mitochondrial diseases, resulting in reduced oxidative metabolism. Such mitochondria may be further contributing to the ME/CFS symptomatology by extracellular secretion of mitochondrial DNA, which could act as an innate pathogen and create an autoinflammatory state in the hypothalamus. We propose that stimulation of hypothalamic mast cells by environmental, neuroimmune, pathogenic and stress triggers activates microglia, leading to focal inflammation in the brain and disturbed homeostasis. This process could be targeted for the development of novel effective treatments.


Assuntos
Síndrome de Fadiga Crônica/patologia , Homeostase/fisiologia , Hipotálamo/patologia , Inflamação/patologia , Doenças Metabólicas/patologia , Animais , Biomarcadores/metabolismo , Metabolismo Energético/fisiologia , Síndrome de Fadiga Crônica/metabolismo , Humanos , Hipotálamo/metabolismo , Inflamação/metabolismo , Doenças Metabólicas/metabolismo , Mitocôndrias/metabolismo , Mitocôndrias/fisiologia
16.
CNS Neurol Disord Drug Targets ; 17(5): 383-388, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29875007

RESUMO

BACKGROUND & OBJECTIVE: Neuroinflammation has been proposed as a major mechanism in schizophrenic disorder. Specifically, an increase in the inflammatory response in the central nervous system is capable of activating microglial cells, leading to the release of pro-inflammatory cytokines and thus activating apoptotic signaling. An increase in apoptosis may underlie a potential role of immune neuropathology in the etiopathogenesis of schizophrenia and specifically, the onset of the disorder. We analyzed in whole blood, levels of S100B, the receptor for advanced glycation end products (RAGE) and the apoptotic marker Fas Ligand in a sample of 13 first episode of schizophrenia twice at baseline before the initiation of any antipsychotic medication (A) and 6 weeks later following an antipsychotic monotherapy with olanzapine (B) and in a sample of 10 healthy controls. The S100B, RAGE and Fas Ligand showed statistically significant differences before and after treatment; the S100B measurements yielded a p-value of 0.004 while the soluble RAGE and Fas Ligand measurements yielded a p=0.03, and p=0.04 respectively. The differences between cases and controls were not statistically significant for all measurements, with the only exception being the S100B values where both samples A and B showed significantly higher values than the controls with p=8.5x10-8 and p=2.9x10-10 respectively. CONCLUSION: The levels of S100B, RAGE, and Fas Ligand of drug-naive first episode psychosis patients with schizophrenia were significantly higher than that of the same medicated first episode psychosis patients, indicating that an increase of apoptotic signaling is present at the onset of schizophrenia and is also associated with treatment progress.


Assuntos
Antipsicóticos/uso terapêutico , Proteína Ligante Fas/sangue , Olanzapina/uso terapêutico , Receptor para Produtos Finais de Glicação Avançada/sangue , Subunidade beta da Proteína Ligante de Cálcio S100/sangue , Esquizofrenia/tratamento farmacológico , Adulto , Idoso , Feminino , Regulação da Expressão Gênica/efeitos dos fármacos , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Esquizofrenia/sangue , Estatísticas não Paramétricas , Adulto Jovem
17.
Horm Mol Biol Clin Investig ; 34(3)2018 Apr 25.
Artigo em Inglês | MEDLINE | ID: mdl-29694329

RESUMO

Background The purpose of our study is to evaluate the association of platelet-to-lymphocyte ratio (PLR) and neutrophil-to-lymphocyte ratio (NLR) with hormonal and metabolic parameters in patients with polycystic ovarian syndrome (PCOS) in order to assess whether these ratios may become useful tools during the evaluation of the severity of low grade inflammation. Methods The present study is based in secondary outcomes from a prospectively collected patient database. A total of 266 women with PCOS participated in this study and blood a complete blood count examination (CBC) that was used for the calculation of PLR and NLR was available in 182 patients. Results Association statistics revealed that PLR had a significant correlation to 17-OH progesterone (r = -0.177, p = 0.024) and Matsuda index values (r = 0.234, p = 0.009), whereas NLR was correlated with follicle stimulating hormone (FSH) (r = -0.204, p = 0.007), free testosterone (r = 320, p < 0.001), Δ4-androstendione (r = 0.234, p = 0.003), sex hormone binding globulin (SHBG) (r = -0.350, p < 0.002) and high-density lipoprotein (HDL) (r = -0.171, p = 0.039). Conclusion According to the findings of our study, both PLR and NLR seem to be correlated with some hormonal and metabolic indices. This association is clearer in the case of NLR and serum androgens as it seems to be positively affected by their levels. PLR and NLR were not affected by the presence of obesity.


Assuntos
Biomarcadores/sangue , Hormônios/sangue , Contagem de Leucócitos , Contagem de Linfócitos , Neutrófilos , Contagem de Plaquetas , Síndrome do Ovário Policístico/sangue , Adulto , Metabolismo Energético , Feminino , Humanos , Síndrome do Ovário Policístico/diagnóstico , Síndrome do Ovário Policístico/metabolismo , Fatores de Risco , Adulto Jovem
19.
Horm Mol Biol Clin Investig ; 34(3)2018 Mar 29.
Artigo em Inglês | MEDLINE | ID: mdl-29596052

RESUMO

Background The severity of polycystic ovarian syndrome (PCOS) has been clearly associated with insulin resistance, obesity and metabolic syndrome. The purpose of the present cross-sectional study is to investigate whether mild hypercholesterolemia alters the biochemical and clinical profile of PCOS patients. Methods Our study is based on a prospectively collected population of women of reproductive age who were diagnosed with PCOS according to the definition of the Rotterdam European Society of Human Reproduction and Embryology/American Society for Reproductive Medicine (ASRM/ESHRE) criteria. For the correlation analysis we used the non-parametric Spearman's rank correlation coefficient. Partial correlation was also performed to control for potential confounders observed in the univariate analysis. Results Overall, 235 patients were included. Their mean age ranged between 14 and 45 years old and the body mass index (BMI) between 17 and 54. Women with mild hypercholesterolemia had a higher BMI and their fasting insulin was increased as well as indices of insulin resistance [Homeostatic model assessment (HOMA), quantitative insulin sensitivity check index (QUICKI), Matsuda index] compared to women with PCOS with normal cholesterol levels. Correlation statistics suggested that the effect of serum lipids on the hormonal profile of patients was weak. Both low-density lipoprotein (LDL) and high-density lipoprotein (HDL) exerted a significant mild negative correlation to glucose and insulin. However, after controlling the results for BMI and age (the two variables that were found significantly different in the univariate analysis) we observed that this effect was non-significant. Conclusion Mild hypercholesterolemia does not affect the hormonal profile of patients with PCOS; hence, to date, there is no evidence to suggest its treatment for the correction of menstrual and hormonal abnormalities in PCOS women.


Assuntos
Glicemia , Hormônios/sangue , Hipercolesterolemia/sangue , Ciclo Menstrual , Ovário/patologia , Síndrome do Ovário Policístico/sangue , Síndrome do Ovário Policístico/diagnóstico , Adolescente , Adulto , Biomarcadores , Índice de Massa Corporal , Pesos e Medidas Corporais , Estudos Transversais , Progressão da Doença , Feminino , Humanos , Pessoa de Meia-Idade , Fatores de Risco , Avaliação de Sintomas , Adulto Jovem
20.
Clin Res Cardiol ; 107(1): 76-86, 2018 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-28921054

RESUMO

Mineralocorticoid receptor antagonists (MRAs) constitute a beneficial therapy in chronic heart failure, but their use in the acute heart failure (AHF) setting remains rather unexplored. To assess the effect of MRAs administered during hospitalization on in-hospital outcomes of patients with AHF, we performed a post-hoc analysis of the Acute Heart Failure Global Registry of Standard Treatment (ALARM-HF). Patients of the original study cohort (n = 4953) were categorized according to in-hospital MRA treatment status as MRA-treated (n = 1439) and untreated (n = 3514) subjects. Nearest-neighbor propensity score with 1:1 matching yielded a subsample of pairs of MRA-treated and MRA-untreated patients (n = 1003 in each treatment group) that were balanced in an extensive list of baseline characteristics. In-hospital mortality between MRA-treated and untreated patients were assessed by Cox regression analysis before and after adjustment for known prognostic factors and other concomitantly administered intravenous and oral HF specific therapies. In the matched cohort, in-hospital mortality was 4.2 vs 10.8% in MRA-treated vs untreated patients. Treatment with MRAs was associated with a reduction of in-hospital mortality [HR 0.372 (95% CI, 0.261-0.532), p < 0.001]. This association remained significant after adjustment for known prognostic factors and co-administered intravenous and oral HF therapies [HR: 0.618 (95% CI, 0.383-0.995), p = 0.048]. In conclusion, MRA therapy administered during hospitalization for AHF was associated with reduced in-hospital mortality. The role of MRAs in AHF deserves further examination in adequately powered randomized controlled studies.


Assuntos
Insuficiência Cardíaca/tratamento farmacológico , Antagonistas de Receptores de Mineralocorticoides/uso terapêutico , Idoso , Idoso de 80 Anos ou mais , Austrália , Distribuição de Qui-Quadrado , Europa (Continente) , Feminino , Insuficiência Cardíaca/diagnóstico , Insuficiência Cardíaca/mortalidade , Insuficiência Cardíaca/fisiopatologia , Mortalidade Hospitalar , Humanos , Masculino , México , Pessoa de Meia-Idade , Antagonistas de Receptores de Mineralocorticoides/efeitos adversos , Análise Multivariada , Pontuação de Propensão , Modelos de Riscos Proporcionais , Recuperação de Função Fisiológica , Sistema de Registros , Estudos Retrospectivos , Fatores de Risco , Volume Sistólico/efeitos dos fármacos , Fatores de Tempo , Resultado do Tratamento , Função Ventricular Esquerda/efeitos dos fármacos
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