Risultati per: Dieta per Anemia

Annals of Internal Medicine, Ahead of Print.

Annals of Internal Medicine, Ahead of Print.

In media una persona su 4 ne consuma troppe 

Locatelli: ‘Può trasformare la vita dei pazienti’

La sperimentazione condotta con successo dal Meyer

Stroke, Volume 55, Issue Suppl_1, Page ATMP10-ATMP10, February 1, 2024. Introduction:Sickle Cell Anemia (SCA) causes lower hemoglobin, leading to increased cerebral blood flow (CBF) to maintain cerebral oxygen metabolism (CMRO2). Although CBF rises in childhood to meet higher CMRO2demands, further compensatory increases in CBF in children with SCA may tap into a limited hemodynamic reserve, increasing risk for infarct. Cerebrovascular reactivity (CVR) reflects hemodynamic reserve by measuring the vasculature’s response to vasoactive stimuli, particularly in the gray matter (GM). We hypothesized that children with SCA have lower GM CVR, regardless of CMRO2.Methods:We used magnetic resonance imaging of children with and without SCA to collect pseudocontinuous arterial spin labeling (pCASL) for CBF, asymmetric spin echo for oxygen extraction fraction (OEF) and blood oxygen level dependent (BOLD) data correlated with hypercapnic challenges for CVR. Lab draws confirmed Hemoglobin (Hb) values. CMRO2was calculated as CBF x OEF x Arterial Oxygen Content (1.36 x Hb x SpO2). Continuous variable differences between groups were analyzed using the Mann-WhitneyUtest, and categorical variables using the Fisher’s exact test. Linear regression assessed the relationship between CVR and Hb. Reported significant relationships survived multiple comparisons correction.Results:A total of 35 participants, ages 8–22 years had quality CVR data [9 SCA subjects (5 male) and 26 controls (9 male)]. Of these, 8 SCA and 20 controls had adequate quality metabolic data. The groups are matched by age (p=0.56) and sex (p=0.43). Children with SCA had higher GM CBF (62.0 v 49.3 mL/100g/min; p=0.03), but similar GM CMRO2(1.81 v 1.42 mL/100g/min; p=0.07) than controls. GM CVR was significantly lower in SCA than controls (0.17 v 0.27 %/mmHg; p=0.0003). Lower CVR was associated with lower Hb (Figure) after adjusting for age and sex (p

Stroke, Volume 55, Issue Suppl_1, Page ATP306-ATP306, February 1, 2024. Anemic intracerebral hemorrhage (ICH) patients are observed to have poor clinical outcomes with increased risk of hematoma expansion (HE) and impaired cerebral oxygenation. To assess whether anemia causes these observations, we assessed neuroimaging evidence of HE and neuropathological changes of hypoxia and blood brain barrier (BBB) dysfunction in anemic vs non-anemic mice with ICH. Anemia was generated in 3 month old female C57/BL6 mice using iron-deficient chow. Age and sex-matched controls were fed iron-replete control diet. Anemia was verified using modified Drabkin assays. Collagenase was used to induce ICH. ICH volume and HE were quantified using serial T2-weighed MRI at 1, 4, and 24 hours after ICH. Early 24 hour mortality was recorded. After the last MRI, surviving mice were euthanized by intracardiac perfusion and the brain was processed for histological analysis of vascular permeability (IgG), microglia number and activation (Iba1 and CD68), and response to hypoxia (HIF1α). Statistical analyses were performed using two-tailed ANOVA. Compared to controls, anemic mice displayed larger final ICH lesion volumes (anemia: 7.7 mm3vs control: 6.1 mm3), greater HE at 24 hours (anemia: 111.4% vs control: 23.6%) and increased early mortality (anemia: 30% vs control: 0%). Histological analyses revealed that, while microglial activation and BBB permeability to serum IgGs in control mice were restricted to the ipsilateral hemisphere and mostly localized perilesionally, anemic mice had increased immune infiltration and increased BBB permeability in both hemispheres. Similarly, non-ICH anemic mice showed increased and widespread immune cell infiltration and increased BBB permeability compared to non-ICH control mice, suggesting that consistently low hemoglobin concentrations may increase cerebrovascular susceptibility to injury.Future studies will be needed to further clarify cellular and molecular mechanisms driving our findings and whether anemia can be a treatable target to improve ICH outcomes.

Anemia is a frequent systemic/extra-intestinal manifestation of inflammatory bowel disease (IBD). It has a complex multifactorial etiology which suppresses erythropoiesis due to pro-inflammatory mediators, myelosuppression, iron and micronutrient deficiency. It significantly impacts quality of life (QoL) and increases hospitalizations, length of hospital stays and mortality rates. It Is commonly thought to arise as a consequence of IBD or it’s related therapy. Current strategies are aimed at correction of anemia with low priority towards identifying a specific cause.

Per il settimo anno. Classifica U.S. News World Report

Le insalate e le verdure vanno condite con olio d’oliva e limone

A restrictive transfusion strategy is appropriate for most hospitalized patients.

Consigli dei nefrologi, moderazione con alcol e poco sale

Presidente Schifone, adesioni bipartisan da 52 parlamentari

‘Abbandonare cattive abitudini a tavola per scelte più salutari’

Sebastiani (Sir), ‘sono complementari ai farmaci’

Il nuovo farmaco Casgevy è prodotto da Vertex Pharmaceuticals Ltd. e CRISPR Therapeutics. Fino ad oggi, il trapianto di midollo osseo, procedura estremamente faticosa che comporta effetti collaterali molto spiacevoli, è stato l’unico trattamento di lunga durata per la talassemia