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Exploring the potential for an evolutionarily conserved role of the taste 1 receptor gene family in gut sensing mechanisms of fish

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Animal Nutrition 2022年第4期11卷 293-308页

作者： anna rita angotzi Esther Leal Sara Puchol José M. Cerdá-Reverter Sofia Morais Department of Fish Physiology and Biotechnology Instituto de Acuicultura de Torre de la SalIATS-CSICTorre la Sal s/nRibera de Cabanes12595 CastellonSpain Lucta S.A. Innovation DivisionAnimal Science UnitUAB Research Park08193 BellaterraSpain

In this study,we investigated the transcriptional spatio-temporal dynamics of the taste 1 receptor(T1R)gene family repertoire in seabream(Sparus aurata[sa]),during larval ontogeny and in adult *** early larval development,sa T1R expression arises heterochronously,*** extraoral taste-related perception in the gastrointestinal tract(GIT)anticipates first exogenous feeding(at 9 days post hatching[dph]),followed by the buccal/intraoral perception from 14 dph onwards,supporting the hypothesis that the early onset of the molecular machinery underlying sa T1R expression in the GIT is not induced by food but rather genetically *** adulthood,we characterized the expression patterns of sa T1R within specific tissues(n=4)distributed in oropharingeal,GIT and brain regions substantiating their functional versatility as chemosensory signaling players to a variety of biological functions beyond oral taste ***,we provided for the first time direct evidences in fish for m RNA coexpression of a subset of sa T1R genes(mostly sa T1R3,*** common subunit of the heterodimeric T1R complexes for the detection of“sweet”and“umami”substances),with the selected gut peptides ghrelin(ghr),cholecystokinin(cck),hormone peptide yy(pyy)and proglucagon(pg).Each peptide defines the enteroendocrine cells(ECCs)identity,and establishes on morphological basis,a direct link for T1R chemosensing in the regulation of fish digestive ***,we analyzed the spatial gene expression patterns of 2 taste signaling components functionally homologous to the mammalian G(i)a subunit gustducin,namely sa G(i)a1 and sa G(i)a2,and demonstrated their co-localization with the sa T1R3in EECs,thus validating their direct involvement in taste-like transduction mechanisms of the fish *** conclusion,data provide new insights in the evolutionary conservation of gut sensing in fish suggesting a conserved role for nutrient sensors modulating entero-endocrine secretion.

关键词： Taste 1 receptor Fish larvae Gut nutrient sensing Gut peptides G(i)alpha protein subunits 1 and 2

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Syndecans in Alzheimer's disease:pathogenetic mechanisms and potential therapeutic targets

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Neural Regeneration Research 2025年第9期20卷 2594-2595页

作者： Carmela rita Balistreri Roberto Monastero Cellular Molecular and Clinical Pathological LaboratoryDepartment of BiomedicineNeuroscience and Advanced Diagnostics(Bi.N.D.)University of PalermoPalermoItaly Memory and Parkinson’s disease Center Policlinico“Paolo Giaccone”PalermoDepartment of BiomedicineNeuroscience and Advanced Diagnostics(Bi.N.D.)University of PalermoVia La Loggia 1PalermoItaly

With increasing age,humans become more susceptible to the onset of neurodegenerative diseases(NDs),and among these,Alzheimer's disease(AD)is the most frequent(Nicoletti et al.,2023).NDs are primarily characterized by neuronal loss and atrophy,but also by lesions involving the cerebral and/or cardiovascular system(Balistreri,2021).Lesions such as macroinfa rcts,microinfarcts,hemorrhages,white matter lesions,atherosclerosis,and arteriolosclerosis have also been significantly described in the preclinical stages of cognitive impairment characterizing NDs(Mariani et al.,2007).

关键词： Alzheimer cardiovascular

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Contribution of mechanical forces to structural synaptic plasticity:insights from 3D cellular motility mechanisms

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Neural Regeneration Research 2025年第7期20卷 1995-1996页

作者： rita O.Teodoro Mafalda Ribeiro Ramos Lara Carvalho iNOVA4Health NOVA Medical School|Faculdade de Ciências MédicasNMS|FCMUniversidade Nova de LisboaLisboaPortugal

Cells,tissues,and organs are constantly subjected to the action of mechanical forces from the extracellular environment-and the nervous system is no ***-intrinsic properties such as membrane lipid composition,abundance of mechanosensors,and cytoskeletal dynamics make cells more or less likely to sense these *** and extrinsic cues are integrated by cells and this combined information determines the rate and dynamics of membrane protrusion growth or retraction(Yamada and Sixt,2019).Cell protrusions are extensions of the plasma membrane that play crucial roles in diverse contexts such as cell migration and neuronal synapse *** the nervous system,neurons are highly dynamic cells that can change the size and number of their pre-and postsynaptic elements(called synaptic boutons and dendritic spines,respectively),in response to changes in the levels of synaptic activity through a process called *** plasticity is a hallmark of the nervous system and is present throughout our lives,being required for functions like memory formation or the learning of new motor skills(Minegishi et al.,2023;Pillai and Franze,2024).

关键词： plasticity structural mechanisms

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Iron deprivation results in a rapid but not sustained increase of the expression of genes involved in iron metabolism and sulfate uptake in tomato(Solanum lycopersicum L.) seedlings

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Journal of Integrative Plant Biology 2014年第1期56卷 88-100页

作者： anna rita Paolacci Silvia Celletti Giulio Catarcione Malcolm J.Hawkesford Stefania Astolfi Mario Ciaffi DAFNE University of Tuscia via S.C.de Lellis 01100 Rothamsted Research West Common Harpenden

Characterization of the relationship between sulfur and iron in both Strategy I and Strategy II plants, has proven that low sulfur availability often limits plant capability to cope with iron shortage. Here it was investigated whether the adaptation to iron deficiency in tomato （Solanum lycopersicum L.） plants was associated with an increased root sulfate uptake and translocation capacity, and modified dynamics of total sulfur and thiols accumulation between roots and shoots. Most of the tomato sulfate transporter genes belonging to Groups 1, 2, and 4 were significantly upregulated in iron-deficient roots, as it commonly occurs under S-deficient conditions. The upregulation of the two high affinity sulfate transporter genes, SlST1.1 and SlST1.2, by iron deprivation clearly suggests an increased root capability to take up sulfate. Furthermore, the upregulation of the two low affinity sulfate transporter genes SlST2.1 and SlST4.1 in iron-deficient roots, accompanied by a substantial accumulation of total sulfur and thiols in shoots of＆amp;nbsp;iron-starved plants, likely supports an increased root-to-shoot translocation of sulfate. Results suggest that tomato plants exposed to iron-deficiency are able to change sulfur metabolic balance mimicking sulfur starvation responses to meet the increased demand for methionine and its derivatives, al owing them to cope with this stress.

关键词： Iron strategy I sulfate accumulation sulfate transporters tomato

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Inhibition of CK2 Activity by TCDD via Binding to ATP-competitive Binding Site of Catalytic Subunit： Insight from Computational Studies

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Chemical Research in Chinese Universities 2013年第2期29卷 299-306页

作者： XU Xian-jin CANNISTRARO Salvatore BIZZARRI anna-rita ZENG Yi CHEN Wei-zu WANG Cun-xin College of Life Science and Bioengineering Beijing University of Technology Beijing 100124 P. R. China Biophysics and Nanoscience Centre CNISM Dipartimento di Biologia ed Ecologia(DEB) Universita della Tuscia Viterbo 01100 Italy

Alternative mechanisms of toxic effects induced by 2,3,7,8-tetrachlorodibenzo-p-dioxin（TCDD）, instead of the binding to aryl hydrocarbon receptor（AhR）, have been taken into consideration. It has been recently shown that TCDD reduces rapidly the activity of CK2（casein kinase II） both in vivo and in vitro. It is found that TCDD has high molecular similarities to the known inhibitors of CK2 catalytic subunit（CK2a）. This suggests that TCDD could also be an ATP-competitive inhibitor of CK2a. In this work, docking TCDD to CK2 was carried out based on the two structures of CK2a from maize and human, respectively. The binding free energies of the predicted CK2a-TCDD complexes estimated by the molecular mechanics/Poisson-Boltzmann surface area（MM/PBSA） method are from -85.1 kJ/mol to -114.3 kJ/mol for maize and are from -96.1 kJ/mol to -118.2 kJ/mol for human, which are comparable to those estimated for the known inhibitor and also ATP with CK2a. The energetic analysis also reveals that the van der Waals interaction is the dominant contribution to the binding free energy. These results are also useful for designing new drugs for a target of overexpressing CK2 in cancers.

关键词： Casein kinase II Dioxin Inhibitor Modeling Binding free energy

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Body weight, lifestyle, dietary habits and gastroesophageal reflux disease

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World Journal of Gastroenterology 2009年第14期15卷 1690-1701页

作者： Davide Festi Eleonora Scaioli Fabio Baldi Amanda Vestito Francesca Pasqui anna rita Di Biase Antonio Colecchia Department of Clinical Medicine University of Bologna Bologna Department of Pediatrics University of Modena Modena Italy

While lifestyle modifications are currently used as firstline treatment for subjects with gastroesophageal reflux disease (GERD), the pathogenetic role of lifestyle factors and consequently, the efficacy of lifestyle measures is controversial. Our aim was to systematically review the pathogenetic link between overweight/ obesity, dietary habits, physical activity and GERD, and the beneficial effect of specific recommended changes, by means of the available literature from the 1999 to the present. Obesity, in particular, abdominal obesity, plays a key role in determining GERD symptoms and complications through mechanical and metabolic effects. Controlled weight loss (by diet or surgery) is effective in improving GERD symptoms. No definitive data exist regarding the role of diet and, in particular, of specific foods or drinks, in influencing GERD clinical manifestations. Moderate physical activity seems to be beneficial for GERD, while vigorous activity may be dangerous in predisposed individuals. In conclusion, being obese/overweight and GERD-specific symptoms and endoscopic features are related, and weight loss significantly improves GERD clinical-endoscopic manifestations. The role of dietary behavior, mainly in terms of specific dietary components, remains controversial. Mild routine physical activity in association with diet modifications, i.e. a diet rich in fiber and low in fat, is advisable in preventing reflux symptoms.

关键词： Food intake Food questionnaire Heartburn Obesity Physical activity

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Psychiatric hospitalization during the two SARS-CoV-2 pandemic waves:New warnings for acute psychotic episodes and suicidal behaviors

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World Journal of Psychiatry 2021年第11期11卷 1095-1105页

作者： Fabio Panariello Sara Longobardi Lorenzo Cellini Diana De Ronchi anna rita Atti Department of Biomedical and NeuroMotor Sciences Institute of PsychiatryUniversity of BolognaBologna 40126Italy

BACKGROUND The subsequent waves of the severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)pandemic have represented a dramatic health emergency characterized by significant consequences on mental *** variations in the incidence rates of acute relapse of psychiatric disorders may represent significant"sentinel events"for assessing the mental health response to an unprecedented stressful *** To investigate the variation in psychiatric hospitalization rates and differences in sociodemographic and clinical-psychopathological peculiarities at Bologna"Maggiore"General Hospital Psychiatric Ward(GHPW)between the first two waves SARS-CoV-2 pandemic and the same periods of the previous 3 *** secondary purpose of the study was to suggest a diachronic response pathway to stress by reporting additional literature data on coping *** This observational and retrospective study collected information on admission to the GHPW at the"Maggiore"Hospital in Bologna in the index periods defined as follows:the first period between February 24,2020 and April 30,2020(first epidemic wave)and the second period between October 8,2020,and January 7,2021(second pandemic wave).Absolute numbers and proportion of admitted patients,their sociodemographic and clinical-psychopathological characteristics were compared with the same parameters recorded in the two same periods of the previous 3 *** strict inclusion or exclusion criteria were provided in the data collection to collect information on all patients requiring acute psychiatric *** During the first wave,there was a significant reduction in hospitalization rates,although there was a simultaneous increase in compulsory hospitalizations and the acute relapse of schizophrenia spectrum and other psychotic *** the second wave,hospitalization rates reached those recorded during the same period of the previous 3 years,mainly due to the rise of bipolar and related diso

关键词： SARS-CoV-2 Schizophrenia spectrum and other psychotic disorders Bipolar and related disorders Depressive disorders Anxiety disorders,trauma-and stressorrelated disorders Suicide behavior Coping strategies

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Nanocarriers to Enhance Solubility, Bioavailability, and Efficacy of Artemisinins

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World Journal of Traditional Chinese Medicine 2020年第1期6卷 26-38页

作者： anna rita Bilia Maria Camilla Bergonzi Joelle CBoulos Thomas Efferth Department of Chemistry University of FlorenceFlorenceItaly Department of Pharmaceutical Biology Institute of Pharmacy and BiochemistryJohannes Gutenberg UniversityMainzGermany

The therapeutic potential of artemisinin (ART) and its derivatives (ARTs) is not limited to malaria but has been recently expanded to other infections with protozoans, trematodes, or viruses as well as to cancer. Due to their limited poor water and oil solubility, rapid degradation by the liver, and short half-life, they have a low bioavailability after oral administration. Consequently, there is a pressing necessity to formulate new ART preparations to raise its bioavailability and efficacy. Nanosized drug delivery systems represent important tools in modern medicine with wide clinical applications, because of their potential modulation of pharmacokinetic and biodistribution. This review focuses on polymer-based systems, lipid-based systems, and inorganic nanoparticles loaded with ARTs. The overall goal of this field of research is to enhance their solubility and stability to improve bioavailability at much lower doses and to increase long-term safety. In addition, the opportunity to reach highly specific site-targeted delivery by these nanocarriers confers a high medicinal value. Remarkably, most of the reported nanoparticulate drug delivery systems are biologically inactive or marginally immunogenic, generating no antigenic or pyrogenic reactions but only partial intrinsic toxicity. As clinical studies in human patients are available so far, there is a pressing need to translate preclinical results on ART-based nanosystems into clinical settings.

关键词： Artemisinin Asteraceae derivatives inorganic nanocarriers lipid nanocarriers nanotechnology polymeric nanocarriers sesquiterpene lactones

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Deuterated dextromethorphan/quinidine for agitation in Alzheimer's disease

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Neural Regeneration Research 2022年第5期17卷 1013-1014页

作者： rita Khoury Department of Psychiatry and Clinical Psychology Saint George Hospital University Medical Center-BeirutLebanon.Adjunct FacultyDepartment of Psychiatry and Behavioral NeuroscienceSaint Louis University School of MedicineSt.LouisMIUSA

Alzheimer's disease(AD)is the most common type of neurode generative disorder;it affects around 47 million individuals worldwide(Prince et al.,2013).AD rose from the 12 th most burdensome disease in the United States ... 详细信息

关键词： Alzheimer agitation

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Post hoc power analysis:is it an informative and meaningful analysis?

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General Psychiatry 2019年第4期32卷 221-225页

作者： Yiran Zhang rita Hedo anna Rivera Rudolph Rull Sabrina Richardson Xin M Tu Department of Family Medicine and Public Health University of California SystemOaklandCaliforniaUSA Naval Health Research Center San DiegoCaliforniaUSA Leidos San DiegoCaliforniaUSA

Power analysis is a key component for planning prospective studies such as clinical trials. However, some journals in biomedical and psychosocial sciences ask for power analysis for data already collected and analysed before accepting manuscripts for publication. In this report, post hoc power analysis for retrospective studies is examined and the informativeness of understanding the power for detecting significant effects of the results analysed, using the same data on which the power analysis is based, is scrutinised. Monte Carlo simulation is used to investigate the performance of posthoc power analysis.

关键词： power analysis meaningful analysis

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