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  1. Article: Ontogeny of PAC1-R and VPAC1-R in the frog, Rana esculenta.

    Ciarlo, Monica / Bruzzone, Federica / Angelini, Cristiano / Vallarino, Mauro / Vaudry, Hubert

    Peptides

    2007  Volume 28, Issue 9, Page(s) 1738–1745

    Abstract: ... the ontogeny of the selective PACAP receptor, PAC1-R, and the PACAP-vasoactive intestinal polypeptide (VIP ... mutual receptor, VPAC1-R, in frog embryos by whole-mount in situ hybridization histochemistry. At stage ... 20, expression of PAC1-R and/or VPAC1-R mRNAs was detected in the brain, the auditory vesicles ...

    Abstract The distribution of pituitary adenylate cyclase-activating polypeptide (PACAP) and PACAP receptors in the brain of amphibians has been previously described. In the present study, we have investigated the ontogeny of the selective PACAP receptor, PAC1-R, and the PACAP-vasoactive intestinal polypeptide (VIP) mutual receptor, VPAC1-R, in frog embryos by whole-mount in situ hybridization histochemistry. At stage 20, expression of PAC1-R and/or VPAC1-R mRNAs was detected in the brain, the auditory vesicles, the external gills, the buds of the lateral lines and the coelomatic cavity. At stage 25, PAC1-R and/or VPAC1-R mRNAs were observed in the buds of the orbital lateral line, the pancreas and heart. At stage 30, PAC1-R and VPAC1-R mRNAs were widely distributed in the telencephalon and diencephalon as well as in the bud of the lateral line, the heart and the pancreas. The anatomical distribution of PAC1-R and VPAC1-R mRNAs, although similar, did not totally overlap, indicating that PACAP and VIP may exert differential effects in frog during development.
    MeSH term(s) Animals ; Brain/embryology ; Brain/metabolism ; Embryo, Nonmammalian/embryology ; Embryo, Nonmammalian/metabolism ; Gene Expression Regulation, Developmental ; In Situ Hybridization ; RNA, Messenger/genetics ; RNA, Messenger/metabolism ; Rana esculenta/embryology ; Rana esculenta/genetics ; Receptors, Pituitary Adenylate Cyclase-Activating Polypeptide, Type I/genetics ; Receptors, Vasoactive Intestinal Polypeptide, Type I/genetics
    Chemical Substances RNA, Messenger ; Receptors, Pituitary Adenylate Cyclase-Activating Polypeptide, Type I ; Receptors, Vasoactive Intestinal Polypeptide, Type I
    Language English
    Publishing date 2007-09
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 769028-9
    ISSN 1873-5169 ; 0196-9781
    ISSN (online) 1873-5169
    ISSN 0196-9781
    DOI 10.1016/j.peptides.2007.04.010
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Structure and functions of the novel hypothalamic RFamide neuropeptides R-RFa and 26RFa in vertebrates.

    Chartrel, Nicolas / Bruzzone, Federica / Leprince, Jérôme / Tollemer, Hélène / Anouar, Youssef / Do-Régo, Jean-Claude / Ségalas-Milazzo, Isabelle / Guilhaudis, Laure / Cosette, Pascal / Jouenne, Thierry / Simonnet, Guy / Vallarino, Mauro / Beauvillain, Jean-Claude / Costentin, Jean / Vaudry, Hubert

    Peptides

    2006  Volume 27, Issue 5, Page(s) 1110–1120

    Abstract: ... novel RFamide peptides, Rana RFamide (R-RFa) and 26RFa, that have been recently isolated ... from the amphibian brain. R-RFa shares the C-terminal LPLRFamide motif with other RFamide peptides previously ... identified in mammals, birds and fish. The distribution of R-RFa in the frog brain exhibits strong ...

    Abstract A number of RFamide peptides have been characterized in invertebrate species and these peptides have been found to exert a broad spectrum of biological activities. In contrast, in vertebrates, our knowledge on RFamide peptides is far more limited and only a few members of the RFamide peptide family have been identified in various vertebrate classes during the last years. The present review focuses on two novel RFamide peptides, Rana RFamide (R-RFa) and 26RFa, that have been recently isolated from the amphibian brain. R-RFa shares the C-terminal LPLRFamide motif with other RFamide peptides previously identified in mammals, birds and fish. The distribution of R-RFa in the frog brain exhibits strong similarities with those of other LPLRFamide peptides, notably in the periventricular region of the hypothalamus. There is also evidence that the physiological functions of R-RFa and other LPLRFamide peptides have been conserved from fish to mammals; in particular, all these peptides appear to be involved in the control of pituitary hormone secretion. 26RFa does not exhibit any significant structural identity with other RFamide peptides and this peptide is the only member of the family that possesses an FRFamide motif at its C-terminus. The strong conservation of the primary structure of 26RFa from amphibians to mammals suggests that this RFamide peptide is involved in important biological functions in vertebrates. As for several other RFamide peptides, 26RFa-containing neurons are present in the hypothalamus, notably in two nuclei involved in the control of feeding behavior. Indeed, 26RFa is a potent stimulator of appetite in mammals. Concurrently, recent data suggest that 26RFa exerts various neuroendocrine regulatory activities at the pituitary and adrenal level.
    MeSH term(s) Animals ; Central Nervous System/chemistry ; Humans ; Hypothalamus/chemistry ; Neuropeptides/chemistry ; Neuropeptides/physiology ; Oligopeptides/analysis ; Ranidae ; Receptors, Neuropeptide/analysis
    Chemical Substances Neuropeptides ; Oligopeptides ; Receptors, Neuropeptide ; leucyl-prolyl-leucyl-arginyl-phenylalaninamide ; neuropeptide FF receptor ; prepro-26RFa protein, human ; arginylphenylalaninamide (34388-59-5)
    Language English
    Publishing date 2006-05
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 769028-9
    ISSN 1873-5169 ; 0196-9781
    ISSN (online) 1873-5169
    ISSN 0196-9781
    DOI 10.1016/j.peptides.2005.06.035
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Patient safety in emergency departments: a problem for health care systems? An international survey.

    Petrino, Roberta / Tuunainen, Eeva / Bruzzone, Giulia / Garcia-Castrillo, Luis

    European journal of emergency medicine : official journal of the European Society for Emergency Medicine

    2023  Volume 30, Issue 4, Page(s) 280–286

    Abstract: Background and importance: Patient safety in healthcare is one of the cornerstones of quality of care. The emergency department (ED) is by its very nature a place where errors and safety issues are liable to occur.: Objective: The aim of the study ... ...

    Abstract Background and importance: Patient safety in healthcare is one of the cornerstones of quality of care. The emergency department (ED) is by its very nature a place where errors and safety issues are liable to occur.
    Objective: The aim of the study was to assess health professionals' perception of the level of safety in EDs and to identify in which work domains safety appears most at risk.
    Design and participants: Between 30 January and 27 February 2023, a survey addressing the main domains of safety was distributed to ED health care professionals through the European Society of Emergency Medicine contact network. It addressed five main domains: teamwork, safety leadership, physical environment and equipment, staff/external teams, and organisational factors and informatics, with a number of items for each domain. Further questions about infection control and team morale were added. The Cronbach's alpha measure was calculated to assure internal consistency.
    Measures and analysis: A score was developed for each domain by adding the question's value using the following ranking: never (1), rarely (2), sometimes (3), usually (4), and always (5) and was aggregated in three categories. The calculated sample size needed was 1000 respondents. The Wald method was used for analysis of the questions' consistency and X2 for the inferential analysis.
    Main results: The survey included 1256 responses from 101 different countries; 70% of respondents were from Europe. The survey was completed by 1045 (84%) doctors and 199 (16%) nurses. It was noted that 568 professionals (45.2%) had less than 10 years' experience. Among respondents, 80.61% [95% confidence interval (CI) 78.42-82.8] reported that monitoring devices were available, and 74.7% (95% CI 72.28-77.11) reported that protocols for high-risk medication and for triage (66.19%) were available in their ED. The area of greatest concern was the disproportionate imbalance between needs and the availability of staff at times of greatest flow, considered sufficient by only 22.4% (95% CI 20.07-24.69) of doctors and 20.7% (95% CI 18.41-22.9) of nurses. Other critical issues were overcrowding due to boarding and a perceived lack of support from hospital management. Despite these difficult working conditions, 83% of the professionals said they were proud to work in the ED (95% CI 81.81-85.89).
    Conclusion: This survey highlighted that most health professionals identify the ED as an environment with specific safety issues. The main factors appeared to be a shortage of personnel during busy periods, overcrowding due to boarding, and a perceived lack of support from hospital management.
    MeSH term(s) Humans ; Patient Safety ; Health Personnel ; Surveys and Questionnaires ; Attitude of Health Personnel ; Emergency Service, Hospital
    Language English
    Publishing date 2023-05-24
    Publishing country England
    Document type Journal Article
    ZDB-ID 1233544-7
    ISSN 1473-5695 ; 0969-9546
    ISSN (online) 1473-5695
    ISSN 0969-9546
    DOI 10.1097/MEJ.0000000000001044
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: The double life of connexin channels: single is a treat.

    Bruzzone, Roberto

    The Journal of investigative dermatology

    2015  Volume 135, Issue 4, Page(s) 940–943

    Abstract: Although several genetic diseases are caused by mutations in channels made by connexin family members, there has been little progress in the development and validation of therapeutic options. An in vitro study in this issue of JID suggests that an anti- ... ...

    Abstract Although several genetic diseases are caused by mutations in channels made by connexin family members, there has been little progress in the development and validation of therapeutic options. An in vitro study in this issue of JID suggests that an anti-malarial drug may be beneficial in keratitis-ichthyosis deafness, a severe conexin channel disease associated with potentially fatal recurrent infections.
    MeSH term(s) Animals ; Connexin 26 ; Connexins/genetics ; Humans ; Keratitis/metabolism ; Mefloquine/chemistry
    Chemical Substances Connexins ; Connexin 26 (127120-53-0) ; Mefloquine (TML814419R)
    Language English
    Publishing date 2015-04
    Publishing country United States
    Document type Journal Article ; Comment
    ZDB-ID 80136-7
    ISSN 1523-1747 ; 0022-202X
    ISSN (online) 1523-1747
    ISSN 0022-202X
    DOI 10.1038/jid.2014.524
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Connexin hemichannel inhibition improves skin pathology in Clouston syndrome mice.

    Bruzzone, Roberto / White, Thomas W

    EBioMedicine

    2020  Volume 57, Page(s) 102856

    MeSH term(s) Animals ; Connexins ; Ectodermal Dysplasia ; Gap Junctions ; Mice ; Skin
    Chemical Substances Connexins
    Language English
    Publishing date 2020-07-03
    Publishing country Netherlands
    Document type Journal Article ; Comment
    ZDB-ID 2851331-9
    ISSN 2352-3964
    ISSN (online) 2352-3964
    DOI 10.1016/j.ebiom.2020.102856
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Analysis of the invasion of a city by Aedes aegypti via mathematical models and Bayesian statistics

    Bruzzone, Octavio Augusto / Utgés, María Eugenia

    Theoretical ecology. 2022 Mar., v. 15, no. 1

    2022  

    Abstract: ... rate (r), and the diffusion coefficient (D). The resulting model is a reaction–diffusion equation ...

    Abstract We analysed data from the invasion of a city by Aedes aegypti by using a series of models based on Fisher’s reaction–diffusion equation with Richard’s growth model and Bayesian statistics. The model that best explains the invasion of the city was defined through a step-by-step process of model selection based on a series of candidate models. As explanatory variables, we used the effect of urbanization type and climate variables on the parameters of Fisher’s equation: carrying capacity (K), population growth rate (r), and the diffusion coefficient (D). The resulting model is a reaction–diffusion equation with a near-zero shape parameter, similar to a Gompertz-type growth. The population advance rate of 60.19 m/day allowed Aedes aegypti to fully occupy a medium-sized city in 5 months from the estimated date of colonization. We found that the carrying capacity was dependent on temperature and urbanization type. While the results are coherent with existing literature on this species, most of the theory on population dynamics of Aedes aegypti usually assumes a logistic growth instead of Gompertz population dynamics. This type of growth is faster than logistic at densities lower than the inflexion point but slower at higher densities. Therefore, it is possible that in a regime in which the K depends on the climate, Gompertz dynamics could stabilize the population of this species of mosquito faster than assumed by the existing theory.
    Keywords Aedes aegypti ; Bayesian theory ; diffusivity ; equations ; growth models ; population growth ; temperature ; urbanization
    Language English
    Dates of publication 2022-03
    Size p. 65-80.
    Publishing place Springer Netherlands
    Document type Article
    ZDB-ID 2391025-2
    ISSN 1874-1746 ; 1874-1738
    ISSN (online) 1874-1746
    ISSN 1874-1738
    DOI 10.1007/s12080-022-00528-y
    Database NAL-Catalogue (AGRICOLA)

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  7. Article: Growth curve of early-weaned Hereford calves in a semidesert temperate zone (Patagonia, Argentina)

    Bruzzone, O. / Castillo, D.A. / Villagra, E.S.

    Livestock science. 2022 Mar. 22,

    2022  

    Abstract: ... in which females experience a change in growth rate at about 62.7 kg, from where their r increases from 0.0065 to 0 ...

    Abstract In semi desert environments, prone to droughts, beef cow performance can be improved by early weaning. This study aimed to evaluate the growth curve of early weaned calves in a semidesert temperate area such as Patagonia, Argentina, using a classical growth curve model. Hereford and crossbred (3/4 Hereford x 1/4 Aberdeen Angus) calves (n=56), born in spring (September - November), from multiparous cows (4 to 8 years old), were weaned at 45-145 d of age, with 43 -156 kg live weight and placed in a feedlot. After a period of adaptation, the calves were fed ad libitum with a diet of corn (48%), soybean expellers (12%) and alfalfa (40%), which was adjusted weekly for the previous week's intake. The animals were weighed weekly. The growth curve was defined by a Bayesian stepwise model selection process based on Richards’ growth curve. The resulting model is a Gompertz-like curve (near-zero shape parameter), in which females experience a change in growth rate at about 62.7 kg, from where their r increases from 0.0065 to 0.0121 becoming similar to that of males. The whole model had a high fit, with a generalized r2 of 0.8782. The average daily gain (ADG) was 0.804 kg/day for female calves and 0.934 kg/day for male calves. Female calves weighing less than 80 kg had an ADG of 0.672 kg/day, and those weighing more had an ADG of 0.847 kg/day. The current growth curve shows that it is possible to achieve high ADG in early weaned calves, confirming that early weaning is a viable alternative to make production systems more efficient in semi desert environments like Patagonia. Knowing the relationship between concentrate feeds and livestock prices, farmers will be able to decide whether early weaning is a profitable alternative or not is a profitable alternative. However, special care must be taken when weaning heifers that weigh less than 80 kg to achieve high ADG.
    Keywords Angus ; Bayesian theory ; Hereford ; alfalfa ; average daily gain ; beef cows ; body weight ; corn ; diet ; feedlots ; growth curves ; males ; models ; soybeans ; spring ; temperate zones ; Argentina
    Language English
    Dates of publication 2022-0322
    Publishing place Elsevier B.V.
    Document type Article
    Note Pre-press version
    ZDB-ID 2226176-X
    ISSN 1878-0490 ; 1871-1413
    ISSN (online) 1878-0490
    ISSN 1871-1413
    DOI 10.1016/j.livsci.2022.104908
    Database NAL-Catalogue (AGRICOLA)

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  8. Article ; Online: Mucopolysaccharidosis type II zebrafish model exhibits early impaired proteasomal-mediated degradation of the axon guidance receptor Dcc.

    Manzoli, Rosa / Badenetti, Lorenzo / Bruzzone, Matteo / Macario, Maria Carla / Rubin, Michela / Dal Maschio, Marco / Roveri, Antonella / Moro, Enrico

    Cell death & disease

    2024  Volume 15, Issue 4, Page(s) 269

    Abstract: Most of the patients affected by neuronopathic forms of Mucopolysaccharidosis type II (MPS II), a rare lysosomal storage disorder caused by defects in iduronate-2-sulfatase (IDS) activity, exhibit early neurological defects associated with white matter ... ...

    Abstract Most of the patients affected by neuronopathic forms of Mucopolysaccharidosis type II (MPS II), a rare lysosomal storage disorder caused by defects in iduronate-2-sulfatase (IDS) activity, exhibit early neurological defects associated with white matter lesions and progressive behavioural abnormalities. While neuronal degeneration has been largely described in experimental models and human patients, more subtle neuronal pathogenic defects remain still underexplored. In this work, we discovered that the axon guidance receptor Deleted in Colorectal Cancer (Dcc) is significantly dysregulated in the brain of ids mutant zebrafish since embryonic stages. In addition, thanks to the establishment of neuronal-enriched primary cell cultures, we identified defective proteasomal degradation as one of the main pathways underlying Dcc upregulation in ids mutant conditions. Furthermore, ids mutant fish-derived primary neurons displayed higher levels of polyubiquitinated proteins and P62, suggesting a wider defect in protein degradation. Finally, we show that ids mutant larvae display an atypical response to anxiety-inducing stimuli, hence mimicking one of the characteristic features of MPS II patients. Our study provides an additional relevant frame to MPS II pathogenesis, supporting the concept that multiple developmental defects concur with early childhood behavioural abnormalities.
    MeSH term(s) Animals ; Axon Guidance ; Brain/metabolism ; Iduronate Sulfatase/metabolism ; Mucopolysaccharidosis II/metabolism ; Nervous System Diseases/pathology ; Zebrafish/metabolism
    Chemical Substances Iduronate Sulfatase (EC 3.1.6.13) ; dcc protein, zebrafish
    Language English
    Publishing date 2024-04-16
    Publishing country England
    Document type Journal Article
    ZDB-ID 2541626-1
    ISSN 2041-4889 ; 2041-4889
    ISSN (online) 2041-4889
    ISSN 2041-4889
    DOI 10.1038/s41419-024-06661-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Metabolomics as a powerful tool for diagnostic, pronostic and drug intervention analysis in COVID-19.

    Bruzzone, Chiara / Conde, Ricardo / Embade, Nieves / Mato, José M / Millet, Oscar

    Frontiers in molecular biosciences

    2023  Volume 10, Page(s) 1111482

    Abstract: COVID-19 currently represents one of the major health challenges worldwide. Albeit its infectious character, with onset affectation mainly at the respiratory track, it is clear that the pathophysiology of COVID-19 has a systemic character, ultimately ... ...

    Abstract COVID-19 currently represents one of the major health challenges worldwide. Albeit its infectious character, with onset affectation mainly at the respiratory track, it is clear that the pathophysiology of COVID-19 has a systemic character, ultimately affecting many organs. This feature enables the possibility of investigating SARS-CoV-2 infection using multi-omic techniques, including metabolomic studies by chromatography coupled to mass spectrometry or by nuclear magnetic resonance (NMR) spectroscopy. Here we review the extensive literature on metabolomics in COVID-19, that unraveled many aspects of the disease including: a characteristic metabotipic signature associated to COVID-19, discrimination of patients according to severity, effect of drugs and vaccination treatments and the characterization of the natural history of the metabolic evolution associated to the disease, from the infection onset to full recovery or long-term and long sequelae of COVID.
    Language English
    Publishing date 2023-02-15
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2814330-9
    ISSN 2296-889X
    ISSN 2296-889X
    DOI 10.3389/fmolb.2023.1111482
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Performance of the Health System Network in Formosa, Argentina, in the Diagnosis of Leprosy.

    Arnaiz, María R / Abarca, Daniela Tobar / Santini, María S / Franco, José I / Arzamendia, Lucila / Recalde, Hugo C / Bruzzone, Octavio A

    The American journal of tropical medicine and hygiene

    2023  Volume 108, Issue 2, Page(s) 320–327

    Abstract: Leprosy is a chronic, neglected tropical infectious disease, currently endemic in Formosa, a province in northwestern Argentina. To analyze the performance, distribution, and effectiveness of the health system in leprosy diagnosis in Formosa, we ... ...

    Abstract Leprosy is a chronic, neglected tropical infectious disease, currently endemic in Formosa, a province in northwestern Argentina. To analyze the performance, distribution, and effectiveness of the health system in leprosy diagnosis in Formosa, we estimated the trend of the number of new cases of leprosy diagnosed between 2002 and 2019 and estimated a forecast for 2022 at the primary health care centers (PHCCs) of at the first level of care (1stLC), at district hospitals (DHs) of the second level of care (2ndLC), high-complexity hospitals at the third level of care (3rdLC), and in rural and urban areas. The general trend was calculated based on the new cases detection rate (NCDR) using the autoregressive-moving average model (ARMA). The 1stLC, 2ndLC, and 3rdLC and the rural/urban variables were assessed using a proportional Bayesian trend ARMA (TrARMA) model. A predictive model was used for estimated forecasts. Markov-Monte Carlo chains were applied with A Metropolis-Hastings's algorithm. The highest median proportion (Mp) of new cases of leprosy was diagnosed at the 2ndLC (Mp, 0.67; 97.5% credibility interval [CI] [0.56-0.77]), at the 3rdLC (Mp, 0.11; 97.5% CI [0.08-0.15]), and in urban areas (urban median proportion (uMp), 0.86; 97.5% CI [0.83- 0.88]), whereas the lowest proportion of new cases was diagnosed at the 1stLC (Mp, 0.082; 97.5% CI [0.061-0.108]) and in rural areas (rural median proportion (rMp), 0.13; 97.5% CI [0.11-0.16]). Our model predicts for 2022 that a median number of new cases of leprosy of 19.70 will be diagnosed in urban areas (97.5% CI [15.94-23.80]), and will continue to be diagnosed at the 2ndLC (median number of cases, 15.33; 97.5% CI [12.40-10.52]) and 3rdLC (median number of cases, 2.43; 97.5% CI [1.97-2.94]).
    MeSH term(s) Humans ; Argentina/epidemiology ; Taiwan ; Bayes Theorem ; Leprosy/diagnosis ; Leprosy/epidemiology ; Government Programs
    Language English
    Publishing date 2023-01-09
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2942-7
    ISSN 1476-1645 ; 0002-9637
    ISSN (online) 1476-1645
    ISSN 0002-9637
    DOI 10.4269/ajtmh.21-0123
    Database MEDical Literature Analysis and Retrieval System OnLINE

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