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2.
Free Radic Biol Med ; 220: 262-270, 2024 May 08.
Artigo em Inglês | MEDLINE | ID: mdl-38729451

RESUMO

Aging affects all organs. Arteries, in particular, are among the most affected. Vascular aging (VA) is defined as age-associated changes in function and structure of vessels. Classical VA phenotypes are carotid intima-media thickness (IMT), carotid plaque (CP), and arterial stiffness (STIFF). Individuals have different predisposition to these VA phenotypes and their associated risk of cardiovascular events. Some develop an early vascular aging (EVA), and others are protected and identified as having supernormal vascular aging (SUPERNOVA). The mechanisms leading to these phenotypes are not well understood. In the Northern Manhattan Study (NOMAS), we found genetic variants in the 7 Sirtuins (SIRT) and 5 Uncoupling Proteins (UCP) to be differently associated with risk to developing VA phenotypes. In this article, we review the results of genetic-epidemiology studies to better understand which of the single nucleotide polymorphisms (SNPs) in SIRT and UCP are responsible for both EVA and SUPERNOVA.

3.
Blood Press ; 33(1): 2336243, 2024 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38567958

RESUMO

PURPOSE: Orthostatic hypotension (OH) may predispose older adults to health complications leading to functional impairment. Despite the central role of the kidney in blood pressure control, the contribution of renal function in orthostatic hypotension is poorly investigated. To verify the association between Chronic Kidney Disease (CKD) and OH a population of hospitalised elderly patients with comorbidities was studied. MATERIALS AND METHODS: 174 patients were consecutively admitted to Acute Geriatric Wards. On admission, patients underwent postural systolic (SBP) and diastolic (DBP) blood pressure evaluation by automatic oscillometric device after 10 min rest in lying position, and in standing position at time 0, 1, 3 and 5 min. CKD was assumed for estimated glomerular filtration rate (e-GFR) less than 60 mL/min/1.73 m2. RESULTS: The mean age of the population enrolled was 74.4 ± 7.0. OH was found in 46.0% and CKD in 56.3% of patients, respectively. A lower e-GFR was observed in patients with (56.1 ± 16.7 mL/min/1.73 m2) than in those without OH (61.1 ± 15.9 mL/min/1.73 m2) (p < 0.05). A greater fall in SBP at 0-min (12.8 ± 6.3 vs. 7.7 ± 3.2 mmHg) and at 1-min (8.4 ± 4.5 vs. 5.7 ± 2.8 mmHg) was found in CKD patients in respect to patients without CKD during active standing test (p < 0.05). Similarly, a DBP reduction at 0-min and at 1-min was observed in CKD patients in respect to patients without CKD (p < 0.05). A multivariate logistic regression analysis showed that CKD was associated to OH (OR 2.426; 95%CI 1.192-4.937; p = 0.014). CONCLUSIONS: CKD is associated to OH in hospitalised older adults.


Assuntos
Hipotensão Ortostática , Insuficiência Renal Crônica , Humanos , Idoso , Hipotensão Ortostática/diagnóstico , Pressão Sanguínea/fisiologia , Insuficiência Renal Crônica/complicações , Determinação da Pressão Arterial , Rim
4.
Cephalalgia ; 44(3): 3331024241235210, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38436302

RESUMO

BACKGROUND: Endometriosis and migraine frequently coexist, but only a limited number of studies have focused on their mutual association. The aim of our study was to investigate, in untreated women with comorbid endometriosis/adenomyosis and migraine, the correlation between headache features and endometriotic subtypes and their possible relationship with pain severity and disease disability. METHODS: Fifty women affected by endometriosis/adenomyosis and migraine matched (1:2) with 100 patients with endometriosis alone and 100 patients with only migraine were recruited and underwent pelvic ultrasound imaging and neurological examination. RESULTS: Severe adenomyosis, posterior and anterior deep infiltrating endometriosis (p = 0.027, p = 0.0031 and p = 0.029, respectively) occurred more frequently in women with migraine. Dysmenorrhea was the most commonly reported symptom in women with endometriosis and migraine and the mean VAS scores of all typical endometriotic symptoms were significantly higher in the presence of comorbidity. Women with both migraine and endometriosis reported significant higher pain intensity (p = 0.004), higher monthly migraine days (p = 0.042) and increased HIT 6-scores (p = 0.01), compared with those without endometriosis. CONCLUSIONS: Our results demonstrated that the co-occurrence of migraine in untreated women with endometriosis is associated with more severe gynecological infiltrations and correlated with increased pain intensity and disease disability.Trial Registration: Protocol number 119/21.


Assuntos
Adenomiose , Endometriose , Transtornos de Enxaqueca , Humanos , Feminino , Endometriose/complicações , Endometriose/epidemiologia , Estudos de Casos e Controles , Transtornos de Enxaqueca/epidemiologia , Cefaleia
5.
Life (Basel) ; 13(12)2023 Nov 22.
Artigo em Inglês | MEDLINE | ID: mdl-38137846

RESUMO

BACKGROUND: Space travel has always been one of mankind's greatest dreams. Thanks to technological innovation, this dream is becoming more of a reality. Soon, humans (not only astronauts) will travel, live, and work in space. However, a microgravity environment can induce several pathological alterations that should be, at least in part, controlled and alleviated. Among those, glucose homeostasis impairment and insulin resistance occur, which can lead to reduced muscle mass and liver dysfunctions. Thus, it is relevant to shed light on the mechanism underlaying these pathological conditions, also considering a nutritional approach that can mitigate these effects. METHODS: To achieve this goal, we used Prdx6-/- mice exposed to Hindlimb Unloading (HU), a well-established experimental protocol to simulate microgravity, fed with a chow diet or an omega-3-enriched diet. RESULTS: Our results innovatively demonstrated that HU-induced metabolic alterations, mainly related to glucose metabolism, may be mitigated by the administration of omega-3-enriched diet. Specifically, a significant improvement in insulin resistance has been reported. CONCLUSIONS: Although preliminary, our results highlight the importance of specific nutritional approaches that can alleviate microgravity-induced harmful effects. These findings should be considered soon by those planning trips around the earth.

6.
Int J Mol Sci ; 24(24)2023 Dec 10.
Artigo em Inglês | MEDLINE | ID: mdl-38139152

RESUMO

Dietary consumption of olive oil represents a key pillar of the Mediterranean diet, which has been shown to exert beneficial effects on human health, such as the prevention of chronic non-communicable diseases like cancers and neurodegenerative diseases, among others. These health benefits are partly mediated by the high-quality extra virgin olive oil (EVOO), which is produced mostly in Mediterranean countries and is directly made from olives, the fruit of the olive tree (Olea europaea L.). Preclinical evidence supports the existence of antioxidant and anti-inflammatory properties exerted by the polyphenol oleocanthal, which belongs to the EVOO minor polar compound subclass of secoiridoids (like oleuropein). This narrative review aims to describe the antioxidant and anti-inflammatory properties of oleocanthal, as well as the potential anticancer and neuroprotective actions of this polyphenol. Based on recent evidence, we also discuss the reasons underlying the need to include the concentrations of oleocanthal and other polyphenols in the EVOO's nutrition facts label. Finally, we report our personal experience in the production of a certified organic EVOO with a "Protected Designation of Origin" (PDO), which was obtained from olives of three different cultivars (Rotondella, Frantoio, and Leccino) harvested in geographical areas located a short distance from one another (villages' names: Gorga and Camella) within the Southern Italy "Cilento, Vallo di Diano and Alburni National Park" of the Campania Region (Province of Salerno, Italy).


Assuntos
Dieta Mediterrânea , Olea , Humanos , Azeite de Oliva/análise , Antioxidantes/farmacologia , Polifenóis , Anti-Inflamatórios
7.
Biomedicines ; 11(11)2023 Nov 09.
Artigo em Inglês | MEDLINE | ID: mdl-38002006

RESUMO

Cardiovascular diseases (CVDs) and type 2 diabetes mellitus (T2DM) are two of the four major chronic non-communicable diseases (NCDs) representing the leading cause of death worldwide. Several studies demonstrate that endothelial dysfunction (ED) plays a central role in the pathogenesis of these chronic diseases. Although it is well known that systemic chronic inflammation and oxidative stress are primarily involved in the development of ED, recent studies have shown that perivascular adipose tissue (PVAT) is implicated in its pathogenesis, also contributing to the progression of atherosclerosis and to insulin resistance (IR). In this review, we describe the relationship between PVAT and ED, and we also analyse the role of PVAT in the pathogenesis of CVDs and T2DM, further assessing its potential therapeutic target with the aim of restoring normal ED and reducing global cardiovascular risk.

8.
Cells ; 12(22)2023 11 10.
Artigo em Inglês | MEDLINE | ID: mdl-37998340

RESUMO

Oxidative stress and impaired mitophagy are the hallmarks of cardiomyocyte senescence. Specifically, a decrease in mitophagic flux leads to the accumulation of damaged mitochondria and the development of senescence through increased ROS and other mediators. In this study, we describe the preventive role of A5+, a mix of polyphenols and other micronutrients, in doxorubicin (DOXO)-induced senescence of H9C2 cells. Specifically, H9C2 cells exposed to DOXO showed an increase in the protein expression proteins of senescence-associated genes, p21 and p16, and a decrease in the telomere binding factors TRF1 and TRF2, indicative of senescence induction. Nevertheless, A5+ pre-treatment attenuated the senescent-like cell phenotype, as evidenced by inhibition of all senescent markers and a decrease in SA-ß-gal staining in DOXO-treated H9C2 cells. Importantly, A5+ restored the LC3 II/LC3 I ratio, Parkin and BNIP3 expression, therefore rescuing mitophagy, and decreased ROS production. Further, A5+ pre-treatment determined a ripolarization of the mitochondrial membrane and improved basal respiration. A5+-mediated protective effects might be related to its ability to activate mitochondrial SIRT3 in synergy with other micronutrients, but in contrast with SIRT4 activation. Accordingly, SIRT4 knockdown in H9C2 cells further increased MnSOD activity, enhanced mitophagy, and reduced ROS generation following A5+ pre-treatment and DOXO exposure compared to WT cells. Indeed, we demonstrated that A5+ protects H9C2 cells from DOXO-induced senescence, establishing a new specific role for A5+ in controlling mitochondrial quality control by restoring SIRT3 activity and mitophagy, which provided a molecular basis for the development of therapeutic strategies against cardiomyocyte senescence.


Assuntos
Mitofagia , Sirtuína 3 , Mitofagia/genética , Espécies Reativas de Oxigênio/metabolismo , Sirtuína 3/genética , Micronutrientes , Senescência Celular , Doxorrubicina/farmacologia
9.
Arch. latinoam. nutr ; 73(3): 222-232, sept 2023.
Artigo em Espanhol | LILACS, LIVECS | ID: biblio-1518453

RESUMO

Los trastornos autoinmunes representan una familia de al menos 80 condiciones diferentes que surgen de una respuesta aberrante del sistema inmunológico resultando finalmente en la destrucción de tejidos y órganos específicos del cuerpo. Es importante destacar que durante las últimas tres décadas los estudios epidemiológicos han proporcionado evidencia de un aumento constante en la incidencia y prevalencia de trastornos autoinmunes. En los últimos años, varios estudios han demostrado que la vitamina D y los ácidos grasos poliinsaturados (AGPs) omega-3 ejercen propiedades inmunomoduladoras y antiinflamatorias sinérgicas que pueden aprovecharse positivamente para la prevención y el tratamiento de trastornos autoinmunes. En este sentido, el reciente ensayo clínico denominado VITAL (ensayo de vitamina D y omega 3); un estudio a gran escala, aleatorizado, doble ciego, controlado con placebo encontró que la suplementación conjunta de vitamina D y AGPs omega-3 (VIDOM) puede reducir la incidencia de enfermedades autoinmunes. En esta revisión de la literatura, resumimos los mecanismos moleculares detrás de las propiedades inmunomoduladoras y antiinflamatorias de la vitamina D y los AGPs omega-3, así como la posible interacción bidireccional entre el metabolismo de la vitamina D y el metabolismo de los AGPs omega-3 que justifica la co- suplementación VIDOM en trastornos autoinmunes(AU)


Autoimmune disorders represent a family of at least 80 different conditions that arise from an aberrant immune system response, which ultimately results in the destruction of specific body tissues and organs. It is important to highlight that during the last three decades epidemiological studies have provided evidence of a steady increase in the incidence and prevalence of autoimmune disorders. In recent years, several studies have shown that vitamin D and omega-3 polyunsaturated fatty acids (PUFAs) exert synergistic immunomodulatory and anti-inflammatory properties that can be positively harnessed for the prevention and treatment of autoimmune disorders. In this sense, the recent clinical trial called VITAL (Vitamin D and Omega 3 trial) - a large, randomized, double-blind, placebo- controlled study - found that co-supplementation of vitamin D and omega-3 PUFAs (VIDOM) can reduce the incidence of autoimmune diseases. In this literature review, we summarize the molecular mechanisms behind the immunomodulatory and anti-inflammatory properties of vitamin D and omega-3 PUFAs, as well as the possible bidirectional interaction between vitamin D metabolism and omega-3 PUFA metabolism that justifies VIDOM co- supplementation in autoimmune disorders(AU)


Assuntos
Doenças Autoimunes , Vitamina D , Ácidos Graxos Ômega-3 , Epidemiologia , Imunomodulação
10.
Immunotherapy ; 15(13): 1009-1019, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37401348

RESUMO

Herein, we describe an unusually prolonged duration (31 months) of the clinical remission phase in a 22-year-old Italian man with new-onset type 1 diabetes. Shortly after the disease diagnosis, the patient was treated with calcifediol (also known as 25-hydroxyvitamin D3 or calcidiol), coupled with low-dose basal insulin, to correct hypovitaminosis D and to exploit the anti-inflammatory and immunomodulatory properties of vitamin D. During the follow-up period, the patient retained a substantial residual ß-cell function and remained within the clinical remission phase, as evidenced by an insulin dose-adjusted glycated hemoglobin value <9. At 24 months, we detected a peculiar immunoregulatory profile of peripheral blood cells, which may explain the prolonged duration of the clinical remission sustained by calcifediol as add-on treatment to insulin.


We describe the case of a 22-year-old Italian man who was treated with a form of vitamin D called calcifediol shortly after the diagnosis of type 1 diabetes, which is an autoimmune condition leading to insulin deficiency and to the lifelong need for insulin therapy. Calcifediol was administered, coupled with low-dose insulin, to correct vitamin D insufficiency and to exploit the anti-inflammatory properties of vitamin D. During the follow-up period (31 months), the patient unexpectedly remained on once-daily insulin injection therapy and maintained near-normal blood glucose levels. These findings suggest that calcifediol administration may represent a valid add-on treatment to insulin, with the aim of reducing daily insulin requirements and improving glucose control in patients with recent-onset type 1 diabetes.


Assuntos
Diabetes Mellitus Tipo 1 , Deficiência de Vitamina D , Masculino , Humanos , Adulto Jovem , Adulto , Calcifediol/uso terapêutico , Diabetes Mellitus Tipo 1/tratamento farmacológico , Vitamina D/uso terapêutico , Insulina/uso terapêutico
11.
Cells ; 12(5)2023 02 24.
Artigo em Inglês | MEDLINE | ID: mdl-36899850

RESUMO

Background: Obesity is a pandemic disease characterized by excessive severe body comorbidities. Reduction in fat accumulation represents a mechanism of prevention, and the replacement of white adipose tissue (WAT) with brown adipose tissue (BAT) has been proposed as one promising strategy against obesity. In the present study, we sought to investigate the ability of a natural mixture of polyphenols and micronutrients (A5+) to counteract white adipogenesis by promoting WAT browning. Methods: For this study, we employed a murine 3T3-L1 fibroblast cell line treated with A5+, or DMSO as control, during the differentiation in mature adipocytes for 10 days. Cell cycle analysis was performed using propidium iodide staining and cytofluorimetric analysis. Intracellular lipid contents were detected by Oil Red O staining. Inflammation Array, along with qRT-PCR and Western Blot analyses, served to measure the expression of the analyzed markers, such as pro-inflammatory cytokines. Results: A5+ administration significantly reduced lipids' accumulation in adipocytes when compared to control cells (p < 0.005). Similarly, A5+ inhibited cellular proliferation during the mitotic clonal expansion (MCE), the most relevant stage in adipocytes differentiation (p < 0.0001). We also found that A5+ significantly reduced the release of pro-inflammatory cytokines, such as IL-6 and Leptin (p < 0.005), and promoted fat browning and fatty acid oxidation through increasing expression levels of genes related to BAT, such as UCP1 (p < 0.05). This thermogenic process is mediated via AMPK-ATGL pathway activation. Conclusion: Overall, these results demonstrated that the synergistic effect of compounds contained in A5+ may be able to counteract adipogenesis and then obesity by inducing fat browning.


Assuntos
Proteínas Quinases Ativadas por AMP , Adipogenia , Camundongos , Animais , Proteínas Quinases Ativadas por AMP/metabolismo , Polifenóis/farmacologia , Micronutrientes/metabolismo , Tecido Adiposo Branco/metabolismo , Obesidade/metabolismo , Proteína Desacopladora 1/metabolismo
12.
Curr Med Res Opin ; 39(4): 505-516, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36749566

RESUMO

OBJECTIVE: Type 2 diabetes mellitus (T2DM) and impaired kidney function are associated with a higher risk of poor outcomes of coronavirus disease 2019 (COVID-19). We conducted a retrospective study in hospitalized T2DM patients with COVID-19 to assess the association between in-hospital mortality and admission values of different hematological/biochemical parameters, including estimated glomerular filtration rate (eGFR), plasma glucose and C-peptide (the latter serving as a marker of beta-cell function). METHODS: The study included T2DM patients with confirmed severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection who were consecutively admitted to our Institution between 1 October 2020 and 1 April 2021. RESULTS: Patients (n = 74) were categorized into survivors (n = 55) and non-survivors (n = 19). Non-survivors exhibited significantly higher median white blood cell (WBC) count, D-dimer, neutrophil-to-lymphocyte ratio, high-sensitivity C-reactive protein (hsCRP), and procalcitonin levels, as well as significantly lower median serum 25-hydroxyvitamin D [25(OH)D] levels compared to survivors. Non-survivors exhibited significantly higher median admission plasma glucose (APG) values compared to survivors (210 vs. 166 mg/dL; p = .026). There was no statistically significant difference in median values of (random) plasma C-peptide between non-survivors and survivors (3.55 vs. 3.24 ng/mL; p = .906). A significantly higher percentage of patients with an eGFR < 60 mL/min/1.73 m2 was observed in the non-survivor group as compared to the survivor group (57.9% vs. 23.6%; p = .006). A multivariate analysis performed by a logistic regression model after adjusting for major confounders (age, sex, body mass index, major comorbidities) showed a significant inverse association between admission eGFR values and risk of in-hospital mortality (OR, 0.956; 95% CI, 0.931-0.983; p = .001). We also found a significant positive association between admission WBC count and risk of in-hospital mortality (OR, 1.210; 95% CI, 1.043-1.404; p = .011). CONCLUSIONS: Admission eGFR and WBC count predict in-hospital COVID-19 mortality among T2DM patients, independently of traditional risk factors, APG and random plasma C-peptide. Hospitalized patients with COVID-19 and comorbid T2DM associated with impaired kidney function at admission should be considered at high risk for adverse outcomes and death.


Assuntos
COVID-19 , Diabetes Mellitus Tipo 2 , Humanos , COVID-19/complicações , SARS-CoV-2 , Diabetes Mellitus Tipo 2/complicações , Peptídeo C , Estudos Retrospectivos , Taxa de Filtração Glomerular , Mortalidade Hospitalar , Glicemia
13.
Int J Mol Sci ; 24(2)2023 Jan 13.
Artigo em Inglês | MEDLINE | ID: mdl-36675160

RESUMO

Diabetes Mellitus is a multifactorial disease with a critical impact worldwide. During prediabetes, the presence of various inflammatory cytokines and oxidative stress will lead to the pathogenesis of type 2 diabetes. Furthermore, insulin resistance and chronic hyperglycemia will lead to micro- and macrovascular complications (cardiovascular disease, heart failure, hypertension, chronic kidney disease, and atherosclerosis). The development through the years of pharmacological options allowed us to reduce the persistence of chronic hyperglycemia and reduce diabetic complications. This review aims to highlight the specific mechanisms with which the new treatments for type 2 diabetes reduce oxidative stress and insulin resistance and improve cardiovascular outcomes.


Assuntos
Doenças Cardiovasculares , Diabetes Mellitus Tipo 2 , Hiperglicemia , Resistência à Insulina , Estado Pré-Diabético , Humanos , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/tratamento farmacológico , Doenças Cardiovasculares/etiologia , Doenças Cardiovasculares/complicações , Hiperglicemia/complicações , Estado Pré-Diabético/complicações
15.
Artigo em Inglês | MEDLINE | ID: mdl-36141454

RESUMO

Capsaicin is a chili peppers extract, genus Capsicum, commonly used as a food spice. Since ancient times, Capsaicin has been used as a "homeopathic remedy" for treating a wild range of pathological conditions but without any scientific knowledge about its action. Several studies have demonstrated its potentiality in cardiovascular, nephrological, nutritional, and other medical fields. Capsaicin exerts its actions thanks to the bond with transient receptor potential vanilloid subtype 1 (TRPV1). TRPV1 is a nociceptive receptor, and its activation starts with a neurosensitive impulse, responsible for a burning pain sensation. However, constant local application of Capsaicin desensitized neuronal cells and leads to relief from neuropathic pain. In this review, we analyze the potential adjuvant role of Capsaicin in the treatment of different pathological conditions either in internal medicine or dentistry. Moreover, we present our experience in five patients affected by oro-facial pain consequent to post-traumatic trigeminal neuropathy, not responsive to any remedy, and successfully treated with topical application of Capsaicin. The topical application of Capsaicin is safe, effective, and quite tolerated by patients. For these reasons, in addition to the already-proven beneficial actions in the internal field, it represents a promising method for the treatment of neuropathic oral diseases.


Assuntos
Capsicum , Neuralgia , Capsaicina/uso terapêutico , Odontologia , Humanos , Neuralgia/tratamento farmacológico , Extratos Vegetais/uso terapêutico
16.
Pharmaceutics ; 14(8)2022 Aug 18.
Artigo em Inglês | MEDLINE | ID: mdl-36015359

RESUMO

The sodium-glucose transporter 2 inhibitors (SGLT2i) are a relatively new class of medication used in the management of type 2 diabetes. Recent clinical trials and research have demonstrated this class's effectiveness in treating heart failure, since they reduce the risk of cardiovascular events, hospitalization, and mortality. The mechanism by which they do so is unclear; however, SGLT2i inhibit the tubular reabsorption of glucose, lowering the interstitial volume. This mechanism leads to a reduction in blood pressure and an improvement of endothelial function. As a result, improvements in hospitalization and mortality rate have been shown. In this review, we focus on the primary outcome of the clinical trials designed to investigate the effect of SGLT2i in heart failure, regardless of patients' diabetic status. Furthermore, we compare the various SGLT2i regarding their risk reduction to investigate their potential as a treatment option for patients with reduced ejection fraction and preserved ejection fraction.

17.
Parkinsonism Relat Disord ; 102: 64-67, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-35963045

RESUMO

INTRODUCTION: Prodromal constipation (PC) at Parkinson's disease (PD) onset may mark a distinct neurodegenerative trajectory; accordingly, presenting phenotype, biochemical signature, and progression of PD patients with PC (PD + PC) might differ from those without (PDwoPC). We compared the clinical-biochemical profile of de novo PD patients with and without PC, and the respective mid-term progression, to establish the grouping effect of PC. METHODS: Motor and non-motor scores were collected at diagnosis in n = 57 PD + PC patients and n = 73 PDwoPC. Paired CSF biomarkers (α-synuclein, amyloid and tau peptides, lactate, CSF/serum albumin ratio or AR) were assessed into a smaller sample and n = 46 controls. Clinical progression was estimated as Hoehn and Yahr stage (HY) and levodopa equivalent daily dose (LEDD) change 2.06 ± 1.35 years after diagnosis. RESULTS: At onset, PD + PC patients had higher HY and MDS-UPDRS-part III scores, and higher CSF AR. PDwoPC had higher Non-Motor Symptoms Scale domain-2 score, and lower CSF α-synuclein level. At follow-up, PD + PC had greater LEDD. CONCLUSIONS: PC identifies a group of de novo patients with more severe motor impairment, possible blood brain barrier disruption, and greater dopaminergic requirement at mid-term; conversely, de novo PDwoPC patients had prominent fatigue, and pronounced central synucleinopathy.


Assuntos
Doença de Parkinson , alfa-Sinucleína , Biomarcadores , Constipação Intestinal/etiologia , Humanos , Lactatos , Levodopa , Doença de Parkinson/complicações , Albumina Sérica
18.
Vaccines (Basel) ; 10(7)2022 Jul 08.
Artigo em Inglês | MEDLINE | ID: mdl-35891261

RESUMO

Type 1 diabetes (T1D), which is caused by the autoimmune destruction of insulin-secreting pancreatic beta cells, represents a high-risk category requiring COVID-19 vaccine prioritization. Although COVID-19 vaccination can lead to transient hyperglycemia (vaccination-induced hyperglycemia; ViHG), its influence on the course of the clinical remission phase of T1D (a.k.a. "honeymoon phase") is currently unknown. Recently, there has been an increasing concern that COVID-19 vaccination may trigger autoimmune phenomena. We describe the case of a 24-year-old young Italian man with T1D who received two doses of the BNT162b2 mRNA (Pfizer-BioNTech) COVID-19 vaccine during a prolonged honeymoon phase. He experienced a transient impairment in glucose control (as evidenced by continuous glucose monitoring) that was not associated with substantial changes in stimulated C-peptide levels and islet autoantibody titers. Nonetheless, large prospective studies are needed to confirm the safety and the immunometabolic impact of the BNT162b2 vaccine in T1D patients during the honeymoon phase. Thus far, T1D patients who are going to receive COVID-19 vaccination should be warned about the possible occurrence of transient ViHG and should undergo strict postvaccination surveillance.

19.
Adv Clin Chem ; 108: 37-71, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35659061

RESUMO

Epidemiologic studies have documented an association between diabetes and increased risk of cognitive decline in the elderly. Based on animal model studies, several mechanisms have been proposed to explain such an association, including central insulin signaling, neurodegeneration, brain amyloidosis, and neuroinflammation. Nevertheless, the exact mechanisms in humans remain poorly defined. It is reasonable, however, that many pathways may be involved in these patients leading to cognitive impairment. A major aim of clinicians is identifying early onset of neurologic signs and symptoms in elderly diabetics to improve quality of life of those with cognitive impairment and reduce costs associated with long-term complications. Several biomarkers have been proposed to identify diabetics at higher risk of developing dementia and diagnose early stage dementia. Although biomarkers of brain amyloidosis, neurodegeneration and synaptic plasticity are commonly used to diagnose dementia, especially Alzheimer disease, their role in diabetes remains unclear. The aim of this review is to explore the molecular mechanisms linking diabetes with cognitive decline and present the most important findings on the clinical use of biomarkers for diagnosing and predicting early cognitive decline in diabetics.


Assuntos
Doença de Alzheimer , Amiloidose , Disfunção Cognitiva , Diabetes Mellitus , Idoso , Doença de Alzheimer/metabolismo , Peptídeos beta-Amiloides , Biomarcadores , Disfunção Cognitiva/complicações , Disfunção Cognitiva/diagnóstico , Diabetes Mellitus/diagnóstico , Humanos , Qualidade de Vida , Proteínas tau
20.
Medicina (Kaunas) ; 58(5)2022 Apr 21.
Artigo em Inglês | MEDLINE | ID: mdl-35629988

RESUMO

Systemic inflammation represents a shared pathophysiological mechanism which underlies the frequent clinical associations among chronic inflammatory rheumatic diseases (CIRDs), insulin resistance, type 2 diabetes (T2D), and chronic diabetes complications, including cardiovascular disease. Therefore, targeted anti-inflammatory therapies are attractive and highly desirable interventions to concomitantly reduce rheumatic disease activity and to improve glucose control in patients with CIRDs and comorbid T2D. Therapeutic approaches targeting inflammation may also play a role in the prevention of prediabetes and diabetes in patients with CIRDs, particularly in those with traditional risk factors and/or on high-dose corticosteroid therapy. Recently, several studies have shown that different disease-modifying antirheumatic drugs (DMARDs) used for the treatment of CIRDs exert antihyperglycemic properties by virtue of their anti-inflammatory, insulin-sensitizing, and/or insulinotropic effects. In this view, DMARDs are promising drug candidates that may potentially reduce rheumatic disease activity, ameliorate glucose control, and at the same time, prevent the development of diabetes-associated cardiovascular complications and metabolic dysfunctions. In light of their substantial antidiabetic actions, some DMARDs (such as hydroxychloroquine and anakinra) could be alternatively termed "diabetes-modifying antirheumatic drugs", since they may be repurposed for co-treatment of rheumatic diseases and comorbid T2D. However, there is a need for future randomized controlled trials to confirm the beneficial metabolic and cardiovascular effects as well as the safety profile of distinct DMARDs in the long term. This narrative review aims to discuss the current knowledge about the mechanisms behind the antihyperglycemic properties exerted by a variety of DMARDs (including synthetic and biologic DMARDs) and the potential use of these agents as antidiabetic medications in clinical settings.


Assuntos
Antirreumáticos , Diabetes Mellitus Tipo 2 , Doenças Reumáticas , Anti-Inflamatórios/uso terapêutico , Antirreumáticos/uso terapêutico , Glicemia , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/tratamento farmacológico , Glucose , Humanos , Hipoglicemiantes/uso terapêutico , Inflamação/tratamento farmacológico , Doenças Reumáticas/induzido quimicamente , Doenças Reumáticas/complicações , Doenças Reumáticas/tratamento farmacológico
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