A Mediterranean-style dietary intervention supplemented with fish oil improves diet quality and mental health in people with depression: a randomized controlled trial (HELFIMED)

We investigated whether a Mediterranean-style diet (MedDiet) supplemented with fish oil can improve mental health in adults suffering depression.Adults with self-reported depression were randomized to receive fortnightly food hampers and MedDiet cooking workshops for 3 months and fish oil supplements for 6 months, or attend social groups fortnightly for 3 months. Assessments at baseline, 3 and 6 months included mental health, quality of life (QoL) and dietary questionnaires, and blood samples for erythrocyte fatty acid analysis.n = 152 eligible adults aged 18-65 were recruited (n = 95 completed 3-month and n = 85 completed 6-month assessments). At 3 months, the MedDiet group had a higher MedDiet score (t = 3.95, P < 0.01), consumed more vegetables (t = 3.95, P < 0.01), fruit (t = 2.10, P = 0.04), nuts (t = 2.29, P = 0.02), legumes (t = 2.41, P = 0.02) wholegrains (t = 2.63, P = 0.01), and vegetable diversity (t = 3.27, P < 0.01); less unhealthy snacks (t = -2.10, P = 0.04) and red meat/chicken (t = -2.13, P = 0.04). The MedDiet group had greater reduction in depression (t = -2.24, P = 0.03) and improved mental health QoL scores (t = 2.10, P = 0.04) at 3 months. Improved diet and mental health were sustained at 6 months. Reduced depression was correlated with an increased MedDiet score (r = -0.298, P = 0.01), nuts (r = -0.264, P = 0.01), and vegetable diversity (r = -0.303, P = 0.01). Other mental health improvements had similar correlations, most notably for increased vegetable diversity and legumes. There were some correlations between increased omega-3, decreased omega-6 and improved mental health.This is one of the first randomized controlled trials to show that healthy dietary changes are achievable and, supplemented with fish oil, can improve mental health in people with depression.Natalie Parletta, Dorota Zarnowiecki, Jihyun Cho, Amy Wilson, Svetlana Bogomolova, Anthony Villani, Catherine Itsiopoulos, Theo Niyonsenga, Sarah Blunden, Barbara Meyer, Leonie Segal, Bernhard T. Baune and Kerin O’De

Metabolic and Innate Immune Cues Merge into a Specific Inflammatory Response via the UPR

Erratum in : Metabolic and Innate Immune Cues Merge into a Specific Inflammatory Response via the UPR. [Cell. 2019]International audienceInnate immune responses are intricately linked with intracellular metabolism of myeloid cells. Toll-likereceptor (TLR) stimulation shifts intracellular metabolism toward glycolysis, while anti-inflammatorysignals depend on enhanced mitochondrial respiration. How exogenous metabolic signals affect theimmune response is unknown. We demonstrate that TLR-dependent responses of dendritic cells (DC)are exacerbated by a high fatty acid (FA) metabolic environment. FA suppress the TLR-inducedhexokinase activity and perturb tricarboxylic acid cycle metabolism. These metabolic changesenhance mitochondrial reactive oxygen species (mtROS) production and, in turn, the unfolded proteinresponse (UPR) leading to a distinct transcriptomic signature, with IL-23 as hallmark. Interestingly,chemical or genetic suppression of glycolysis was sufficient to induce this specific immune response.Conversely, reducing mtROS production or DC-specific deficiency in XBP1 attenuated IL-23expression and skin inflammation in an IL-23-dependent model of psoriasis. Thus, fine-tuning of innateimmunity depends on optimization of metabolic demands and minimization of mtROS-induced UPR

Диссеминированный мукормикоз у больного острым лимфобластным лейкозом (клинический случай)

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BASOPHILE ACTIVATION TEST FOR THE DIAGNOSTICS OF FUNGAL SENSITIZATION IN THE PATIENTS WITH CYSTIC FIBROSIS

Aspergillus fumigatus colonization in the patients with cystic fibrosis (CF) may cause sensitization against A. fumigatus and/or allergic bronchopulmonary aspergillosis (ABPA), which significantly worsens the course of underlying disease. At the present time, new diagnostic tests are searched for detection of fungal sensitization in these patients. The aim of this work was to evaluate an opportunity of application of basophile activation test with A. fumigatus allergen in vitro using flow cytometry, aiming for identification of fungal sensitization in the CF patients. The study included 190 patients with CF aged 1 to 37 years. All the patients underwent common allergy screening (skin tests with fungal allergens, determination of serum levels of total IgE and specific IgE for the fungal allergens), and mycological examination (microscopy and culture of respiratory substrates). Computed tomography of the chest was performed upon clinical indications. The basophil activation test with the A. fumigatus allergen was performed in 10 CF patients with ABPA, and 10 CF patients without ABPA, in addition to the standard allergological examination. Frequency of sensitization to A. fumigatus in the patients with cystic fibrosis was 27%, the incidence of allergic bronchopulmonary aspergillosis was 5.7%. The number of eosinophils, total IgE and specific IgE levels in CF patients with ABPA were significantly higher than in CF patients without ABPA. In blood of the ABPA patients we have identified 68.5 (52.5-81.5%) of basophilic leukocytes activated by A. fumigatus allergen, with a stimulation index of 17.07 (10.30-27.70). In appropriate comparison group, the stimulation index did not exceed 1.5 (p = 0.000). Direct positive correlation between the levels of specific IgE to A. fumigatus and the number of basophils activated by A. fumigatus allergens was revealed (r = 0.77; р &lt; 0.05). FVC values and the body mass index in CF patients with ABPA were significantly lower when compared with the patients without fungal sensitization. Introduction of the basophil activation test, along with standard techniques, may enable a more differentiated assessment of ABPA development in CF patients. Timely detection of associations between A. fumigatus sensitization and clinical status of CF patients will facilitate early and effective administration of specific therapy

Thermal and Optical Characterization of Undoped and Neodymium-Doped Y3ScAl4O12 Ceramics

Y3–3xNd3xSc1Al4O12 (x = 0, 0.01, and 0.02) ceramics were fabricated by sintering at high temperature under vacuum. Unit cell parameter refinement and chemical analysis have been performed. The morphological characterization shows micrograins with no visible defects. The thermal analysis of these ceramics is presented, by measuring the specific heat in the temperature range from 300 to 500 K. Their values at room temperature are in the range 0.81–0.90 J g1–K–1. The thermal conductivity has been determined by two methods: by the experimental measurement of the thermal diffusivity by the photopyroelectric method, and by spectroscopy, evaluating the thermal load. The thermal conductivities are in the range 9.7–6.5 W K–1 m–1 in the temperature interval from 300 to 500 K. The thermooptic coefficients were measured at 632 nm by the dark mode method using a prism coupler, and the obtained values are in the range 12.8–13.3 × 10–6 K–1. The nonlinear refractive index values at 795 nm have been evaluated to calibrate the nonlinear optical response of these materials.This work is supported by the Spanish Government under projects MAT2011-29255-C02-01-02, MAT2013-47395-C4-4-R, and the Catalan Government under project 2014SGR1358. It was also funded by the European Commission under the Seventh Framework Programme, project Cleanspace, FP7-SPACE-2010-1-GA No. 263044

Synthesis and solution properties of a temperature-responsive PNIPAM–b-PDMS–b-PNIPAM triblock copolymer

In this paper, we report the synthesis and self-assembly of a novel thermoresponsive PNIPAM60–b-PDMS70–b-PNIPAM60 triblock copolymer in aqueous solution. The copolymer used a commercially available precursor modified with an atom transfer radical polymerization (ATRP) initiator to produce an ABA triblock copolymer via ATRP. Small-angle neutron scattering (SANS) was used to shed light on the structures of nanoparticles formed in aqueous solutions of this copolymer at two temperatures, 25 and 40 °C. The poly(dimethylsiloxane) block is very hydrophobic and poly(N-isopropylacrylamide) (PNIPAM) is thermoresponsive. SANS data at 25 °C indicates that the solutions of PNIPAM–b-PDMS–b-PNIPAM copolymers form well-defined aggregates with presumably core–shell structures below cloud point temperature. The scattering curves originating from nanoparticles formed at 40 °C in 100% D2O or 100% H2O were successfully fitted with the Beaucage model describing aggregates with hierarchical structure

The global spread of misinformation on spiders

In the internet era, the digital architecture that keeps us connected and informed may also amplify the spread of misinformation. This problem is gaining global attention, as evidence accumulates that misinformation may interfere with democratic processes and undermine collective responses to environmental and health crises1,2. In an increasingly polluted information ecosystem, understanding the factors underlying the generation and spread of misinformation is becoming a pressing scientific and societal challenge3. Here, we studied the global spread of (mis-)information on spiders using a high-resolution global database of online newspaper articles on spider–human interactions, covering stories of spider–human encounters and biting events published from 2010–20204. We found that 47% of articles contained errors and 43% were sensationalist. Moreover, we show that the flow of spider-related news occurs within a highly interconnected global network and provide evidence that sensationalism is a key factor underlying the spread of misinformation

МУКОРМИКОЗ У ДЕТЕЙ С ГЕМАТОЛОГИЧЕСКИМИ И ОНКОЛОГИЧЕСКИМИ ЗАБОЛЕВАНИЯМИ В САНКТ-ПЕТЕРБУРГЕ

In prospective multicenter study were included 20 pediatriconcohematologic patients with mucormycosis. Age: 3 – 17 yy (median – 11), females – 60%. The diagnosiswas made according to EORTC/MSG 2008 criteria (post mortem – 25%). The main underlying disease was acutel eukemia (70%), risk factors – prolong severe neutropenia (median – 31 d) and lymphocytopenia (median – 33 d) after cytostatic chemotherapy or hematopoietic stem cells transplantation. Etiology agents were Lichtheimia corуmbifera, Rhizopus spp. and Rhizomucor spp. Main sites of infection were lungs (65%) and paranasal synuses (30%), dissemination – 45%. Antifungal therapy (amphotericin B lipid coplex, posaconazole, caspofungin, amphotericin B) was used in 75% patients, surgery – 30%. Overall mortality in 12 weeks was 70%.В проспективное многоцентровое исследование включили 20 детей с гематологическими и онкологическими заболеваниями, осложнившимися мукормикозом. Возраст – от 3 до 17 лет (медиана – 11 лет), девочки – 60%. Диагноз мукормикоза был установлен согласно критериям EORTC/MSG, 2008 (post mortem – 25%). Установлено, что мукормикоз развивается преимущественно у больных острым лейкозом (70%), на фоне длительного агранулоцитоза (медиана – 31 день) и лимфоцитопении (медиана – 33 дня) после интенсивной цитостатической и/или иммуносупрессивной терапии, а также трансплантации гемопоэтических стволовых клеток. Возбудители: Lichtheimia corуmbifera, Rhizopus spp. и Rhizomucor spp. Заболевание начинается с поражения легких (65%) и придаточных пазух носа (30%), диссеминацию выявили у 45% пациентов. Антимикотическую терапию (липидный комплекс амфотерицина В, позаконазол, каспофунгин, амфотерицин В) проводили 75% больных, хирургическое лечение – 30%. Общая летальность в течение 12 недель составила 70%

Тяжелый грипп как фактор риска развития инвазивного аспергиллёза лёгких (клинический случай)

During  last  years  the  frequency  of  invasive  pulmonary aspergillosis  (IPA)  in  immunocompetent  patients  has  increased. Clinical case report of successful treatment invasive aspergillosis  with  influenza  A(H1N1)  presented  in  the  article. We analyzed the special literature of patients with IPA following influenza infection. The timely identification and treatment of these patients are necessary.В последние годы увеличилась частота инвазивного аспергиллеза у больных без типичных факторов риска. В статье представлен случай успешного лечения инвазивного аспергиллёза лёгких, возникшего на фоне гриппа A(H1N1), и обзор литературы. Показана необходимость своевременной диагностики и адекватной антимикотической терапии у больных тяжелым гриппом