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Alcocer B, Bou P, Bosch L, Torrente C. Presumptive spontaneous hemothorax associated to thymic involution in a dog with steroid responsive meningitis-arteritis (SRMA). Top Companion Anim Med 2024; 60:100863. [PMID: 38513795 DOI: 10.1016/j.tcam.2024.100863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 01/29/2024] [Accepted: 03/14/2024] [Indexed: 03/23/2024]
Abstract
OBJECTIVE To describe an unusual case of spontaneous hemothorax resulting from thymic involution in a dog with suspected acquired bleeding dyscrasia associated with steroid-responsive meningitis-arteritis (SRMA). CASE DESCRIPTION A 6-month-old spayed female Golden Retriever was referred due to the sudden onset of lethargy, fever (pyrexia), loss of appetite (anorexia), and moderate neck pain. These symptoms emerged six days after an ovariohysterectomy performed by the primary veterinarian. Upon admission, the patient exhibited pale mucous membranes, tachycardia (180 bpm), bilateral muffled heart sounds and tachypnea. Abdominal and thoracic point-of-care ultrasound (POCUS) were performed and revealed bilateral pleural effusion. Due to the patient's unstable condition, emergent thoracocentesis and transfusion of packed red blood cells was required. The initial work-up performed included a complete blood cell count (CBC), biochemistry profile, venous blood gas and coagulation panel (PT, APTT, fibrinogen). Pleural effusion analysis was compatible with hemothorax. Bloodwork was unremarkable including the initial coagulation panel. Further coagulation test was performed including buccal mucosal bleeding time, viscoelastic-based clot detection tests (TEG) and Von Willebrand factor antigen measurement. TEG revealed marked hyperfibrinolysis. Angiostrongylus vasorum and 4DX snap test were performed and yielded a negative result. Thoracic CT scan revealed the presence of a soft tissue-attenuating mass in the ventral mediastinum, thymic involution, and enlargement of the sternal and mediastinal lymph nodes. Therapy with tranexamic acid and corticosteroids at anti-inflammatory doses was initiated. Marked clinical improvement was observed within 24 hours, and after three days of hospitalization the patient was discharged. One month later, the dog was referred again for acute pyrexia, hyporexia, and neck pain which progressed to non-ambulatory tetraparesis. Neurological examination was compatible with C6-T2 lesion. MRI and cerebrospinal fluid analysis were performed and revealed a final diagnosis of steroid-responsive meningitis-arteritis (SRMA) with associated intramedullary hemorrhage. Corticosteroids were started again, and the patient showed a dramatic improvement over the next 24 hours. Three weeks after the diagnosis, the dog returned to a clinically normal state. The treatment was gradually tapered over the following months, guided by regular neurological and clinical examinations and CRP measurements, without any relapses. NEW OR UNIQUE INFORMATION To the best of the author's knowledge, this is the first documented case of a dog experiencing spontaneous hemothorax as a result of thymic hemorrhage/involution which, in the absence of other identifiable diseases, was attributed to a hyperfibrinolytic state induced by a severe inflammatory disease such as SRMA.
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Affiliation(s)
- B Alcocer
- Emergency and Critical Care Service, Fundació Hospital Clínic Veterinari-UAB, Universitat Autònoma de Barcelona (UAB), Campus, Carrer de l'Hospital, s/n, 08193 Cerdanyola del Vallès, Barcelona, Spain.
| | - P Bou
- Emergency and Critical Care Service, Fundació Hospital Clínic Veterinari-UAB, Universitat Autònoma de Barcelona (UAB), Campus, Carrer de l'Hospital, s/n, 08193 Cerdanyola del Vallès, Barcelona, Spain.
| | - L Bosch
- Emergency and Critical Care Service, Fundació Hospital Clínic Veterinari-UAB, Universitat Autònoma de Barcelona (UAB), Campus, Carrer de l'Hospital, s/n, 08193 Cerdanyola del Vallès, Barcelona, Spain; Animal Medicine and Surgery Department, Facultat de Veterinària de la UAB, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Barcelona, Spain.
| | - C Torrente
- Emergency and Critical Care Service, Fundació Hospital Clínic Veterinari-UAB, Universitat Autònoma de Barcelona (UAB), Campus, Carrer de l'Hospital, s/n, 08193 Cerdanyola del Vallès, Barcelona, Spain; Animal Medicine and Surgery Department, Facultat de Veterinària de la UAB, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Barcelona, Spain.
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Linschoten M, Uijl A, Schut A, Jakob CEM, Romão LR, Bell RM, McFarlane E, Stecher M, Zondag AGM, van Iperen EPA, Hermans-van Ast W, Lea NC, Schaap J, Jewbali LS, Smits PC, Patel RS, Aujayeb A, van der Harst P, Siebelink HJ, van Smeden M, Williams S, Pilgram L, van Gilst WH, Tieleman RG, Williams B, Asselbergs FW, Al-Ali AK, Al-Muhanna FA, Al-Rubaish AM, Al-Windy NYY, Alkhalil M, Almubarak YA, Alnafie AN, Alshahrani M, Alshehri AM, Anning C, Anthonio RL, Badings EA, Ball C, van Beek EA, ten Berg JM, von Bergwelt-Baildon M, Bianco M, Blagova OV, Bleijendaal H, Bor WL, Borgmann S, van Boxem AJM, van den Brink FS, Bucciarelli-Ducci C, van Bussel BCT, Byrom-Goulthorp R, Captur G, Caputo M, Charlotte N, vom Dahl J, Dark P, De Sutter J, Degenhardt C, Delsing CE, Dolff S, Dorman HGR, Drost JT, Eberwein L, Emans ME, Er AG, Ferreira JB, Forner MJ, Friedrichs A, Gabriel L, Groenemeijer BE, Groenendijk AL, Grüner B, Guggemos W, Haerkens-Arends HE, Hanses F, Hedayat B, Heigener D, van der Heijden DJ, Hellou E, Hellwig K, Henkens MTHM, Hermanides RS, Hermans WRM, van Hessen MWJ, Heymans SRB, Hilt AD, van der Horst ICC, Hower M, van Ierssel SH, Isberner N, Jensen B, Kearney MT, van Kesteren HAM, Kielstein JT, Kietselaer BLJH, Kochanek M, Kolk MZH, Koning AMH, Kopylov PY, Kuijper AFM, Kwakkel-van Erp JM, Lanznaster J, van der Linden MMJM, van der Lingen ACJ, Linssen GCM, Lomas D, Maarse M, Macías Ruiz R, Magdelijns FJH, Magro M, Markart P, Martens FMAC, Mazzilli SG, McCann GP, van der Meer P, Meijs MFL, Merle U, Messiaen P, Milovanovic M, Monraats PS, Montagna L, Moriarty A, Moss AJ, Mosterd A, Nadalin S, Nattermann J, Neufang M, Nierop PR, Offerhaus JA, van Ofwegen-Hanekamp CEE, Parker E, Persoon AM, Piepel C, Pinto YM, Poorhosseini H, Prasad S, Raafs AG, Raichle C, Rauschning D, Redón J, Reidinga AC, Ribeiro MIA, Riedel C, Rieg S, Ripley DP, Römmele C, Rothfuss K, Rüddel J, Rüthrich MM, Salah R, Saneei E, Saxena M, Schellings DAAM, Scholte NTB, Schubert J, Seelig J, Shafiee A, Shore AC, Spinner C, Stieglitz S, Strauss R, Sturkenboom NH, Tessitore E, Thomson RJ, Timmermans P, Tio RA, Tjong FVY, Tometten L, Trauth J, den Uil CA, Van Craenenbroeck EM, van Veen HPAA, Vehreschild MJGT, Veldhuis LI, Veneman T, Verschure DO, Voigt I, de Vries JK, van de Wal RMA, Walter L, van de Watering DJ, Westendorp ICD, Westendorp PHM, Westhoff T, Weytjens C, Wierda E, Wille K, de With K, Worm M, Woudstra P, Wu KW, Zaal R, Zaman AG, van der Zee PM, Zijlstra LE, Alling TE, Ahmed R, van Aken K, Bayraktar-Verver ECE, Bermúdez Jiménes FJ, Biolé CA, den Boer-Penning P, Bontje M, Bos M, Bosch L, Broekman M, Broeyer FJF, de Bruijn EAW, Bruinsma S, Cardoso NM, Cosyns B, van Dalen DH, Dekimpe E, Domange J, van Doorn JL, van Doorn P, Dormal F, Drost IMJ, Dunnink A, van Eck JWM, Elshinawy K, Gevers RMM, Gognieva DG, van der Graaf M, Grangeon S, Guclu A, Habib A, Haenen NA, Hamilton K, Handgraaf S, Heidbuchel H, Hendriks-van Woerden M, Hessels-Linnemeijer BM, Hosseini K, Huisman J, Jacobs TC, Jansen SE, Janssen A, Jourdan K, ten Kate GL, van Kempen MJ, Kievit CM, Kleikers P, Knufman N, van der Kooi SE, Koole BAS, Koole MAC, Kui KK, Kuipers-Elferink L, Lemoine I, Lensink E, van Marrewijk V, van Meerbeeck JP, Meijer EJ, Melein AJ, Mesitskaya DF, van Nes CPM, Paris FMA, Perrelli MG, Pieterse-Rots A, Pisters R, Pölkerman BC, van Poppel A, Reinders S, Reitsma MJ, Ruiter AH, Selder JL, van der Sluis A, Sousa AIC, Tajdini M, Tercedor Sánchez L, Van De Heyning CM, Vial H, Vlieghe E, Vonkeman HE, Vreugdenhil P, de Vries TAC, Willems AM, Wils AM, Zoet-Nugteren SK. Clinical presentation, disease course, and outcome of COVID-19 in hospitalized patients with and without pre-existing cardiac disease: a cohort study across 18 countries. Eur Heart J 2022; 43:1104-1120. [PMID: 34734634 DOI: 10.1093/eurheartj/ehab656] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 06/22/2021] [Accepted: 09/01/2021] [Indexed: 12/25/2022] Open
Abstract
AIMS Patients with cardiac disease are considered high risk for poor outcomes following hospitalization with COVID-19. The primary aim of this study was to evaluate heterogeneity in associations between various heart disease subtypes and in-hospital mortality. METHODS AND RESULTS We used data from the CAPACITY-COVID registry and LEOSS study. Multivariable Poisson regression models were fitted to assess the association between different types of pre-existing heart disease and in-hospital mortality. A total of 16 511 patients with COVID-19 were included (21.1% aged 66-75 years; 40.2% female) and 31.5% had a history of heart disease. Patients with heart disease were older, predominantly male, and often had other comorbid conditions when compared with those without. Mortality was higher in patients with cardiac disease (29.7%; n = 1545 vs. 15.9%; n = 1797). However, following multivariable adjustment, this difference was not significant [adjusted risk ratio (aRR) 1.08, 95% confidence interval (CI) 1.02-1.15; P = 0.12 (corrected for multiple testing)]. Associations with in-hospital mortality by heart disease subtypes differed considerably, with the strongest association for heart failure (aRR 1.19, 95% CI 1.10-1.30; P < 0.018) particularly for severe (New York Heart Association class III/IV) heart failure (aRR 1.41, 95% CI 1.20-1.64; P < 0.018). None of the other heart disease subtypes, including ischaemic heart disease, remained significant after multivariable adjustment. Serious cardiac complications were diagnosed in <1% of patients. CONCLUSION Considerable heterogeneity exists in the strength of association between heart disease subtypes and in-hospital mortality. Of all patients with heart disease, those with heart failure are at greatest risk of death when hospitalized with COVID-19. Serious cardiac complications are rare during hospitalization.
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Vater C, Bosch L, Mitter A, Göls T, Seiser S, Heiss E, Elbe-Bürger A, Wirth M, Valenta C, Klang V. Lecithin-based nanoemulsions of traditional herbal wound healing agents and their effect on human skin cells. Eur J Pharm Biopharm 2021; 170:1-9. [PMID: 34798283 DOI: 10.1016/j.ejpb.2021.11.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 11/04/2021] [Accepted: 11/11/2021] [Indexed: 01/11/2023]
Abstract
In previous studies, lecithin-based nanoemulsions (NEs) have been shown to be skin friendly drug carrier systems. Due to their nontoxic properties, NEs might also be suitable as wound healing agents. Hence, different O/W NEs based on lecithin Lipoid® S 75 and plant oils or medium chain triglycerides were produced and characterised. Two lipophilic natural wound healing agents, a betulin-enriched extract from birch bark (BET) and a purified spruce balm (PSB), were successfully incorporated and their effects on primary human skin cells were studied in vitro. MTT, BrdU and scratch assays uncovered the positive influence of the drug-loaded NEs on cell viability, proliferation and potential wound closure. Compared to control formulations, the NEs loaded with either BET or PSB led to higher cell viability rates of fibroblasts and keratinocytes. Higher proliferative activity of keratinocytes and fibroblasts was observed after the treatment, which is a prerequisite for wound closure. Indeed, in scratch assays NEs with PSB and notably BET showed significantly ameliorated wound closure rates than the negative control (unloaded NEs) and the positive control (NEs with dexpanthenol). Our findings suggest that BET and PSB are outstanding wound healing drugs and their incorporation into lecithin-based NEs may represent a valid strategy for wound care.
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Affiliation(s)
- Claudia Vater
- University of Vienna, Department of Pharmaceutical Technology and Biopharmaceutics, Althanstraße 14, 1090 Vienna, Austria; University of Vienna, Research Platform 'Characterisation of Drug Delivery Systems on Skin and Investigation of Involved Mechanisms', Althanstraße 14, 1090 Vienna, Austria
| | - Leonie Bosch
- University of Vienna, Department of Pharmaceutical Technology and Biopharmaceutics, Althanstraße 14, 1090 Vienna, Austria
| | - Alexandra Mitter
- University of Vienna, Department of Pharmaceutical Technology and Biopharmaceutics, Althanstraße 14, 1090 Vienna, Austria
| | - Thomas Göls
- University of Vienna, Department of Pharmacognosy, Althanstrasse 14, 1090 Vienna, Austria
| | - Saskia Seiser
- Medical University of Vienna, Department of Dermatology, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Elke Heiss
- University of Vienna, Department of Pharmacognosy, Althanstrasse 14, 1090 Vienna, Austria
| | - Adelheid Elbe-Bürger
- Medical University of Vienna, Department of Dermatology, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Michael Wirth
- University of Vienna, Department of Pharmaceutical Technology and Biopharmaceutics, Althanstraße 14, 1090 Vienna, Austria
| | - Claudia Valenta
- University of Vienna, Department of Pharmaceutical Technology and Biopharmaceutics, Althanstraße 14, 1090 Vienna, Austria; University of Vienna, Research Platform 'Characterisation of Drug Delivery Systems on Skin and Investigation of Involved Mechanisms', Althanstraße 14, 1090 Vienna, Austria
| | - Victoria Klang
- University of Vienna, Department of Pharmaceutical Technology and Biopharmaceutics, Althanstraße 14, 1090 Vienna, Austria.
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Schraa S, Van Rooijen K, Kruijssen D, Alarcón CR, Phallen J, Sausen M, Simmons J, Coupe V, Van Grevenstein H, Elias S, Verkooijen H, Bosch L, Van Den Broek D, Meijer G, Velculescu V, Fijneman R, Vink G, Koopman M. 521TiP Circulating tumor DNA guided adjuvant chemotherapy in stage II colon cancer according the trials within cohorts design: The MEDOCC-CrEATE trial. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Monkhorst K, Samsom K, Schipper L, Roepman P, Bosch L, de Bruijn E, Hoes L, Riethorst I, Schoenmaker L, van der Kolk L, Buffart T, van der Hoeven K, Voest E, Cuppen E, Meijer G. 1189O Validation of whole genome sequencing in routine clinical practice. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.083] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Ferré F, Pommier M, Laumonerie P, Ferrier A, Menut R, Bosch L, Balech V, Bonnevialle N, Minville V. Hemidiaphragmatic paralysis following ultrasound‐guided anterior vs. posterior suprascapular nerve block: a double‐blind, randomised control trial. Anaesthesia 2020; 75:499-508. [DOI: 10.1111/anae.14978] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/07/2019] [Indexed: 12/26/2022]
Affiliation(s)
- F. Ferré
- Département d'Anesthésie Réanimation Centre Hospitalier Universitaire de Toulouse Purpan Hôpital Riquet Université Toulouse 3‐Paul Sabatier Toulouse France
| | - M. Pommier
- Département d'Anesthésie Réanimation Centre Hospitalier Universitaire de Toulouse Purpan Hôpital Riquet Université Toulouse 3‐Paul Sabatier Toulouse France
| | - P. Laumonerie
- Département d'Orthopédie Traumatologie Centre Hospitalier Universitaire de Toulouse Purpan Hôpital Riquet Université Toulouse 3‐Paul Sabatier Toulouse France
| | - A. Ferrier
- Département d'Anesthésie Réanimation Centre Hospitalier Universitaire de Toulouse Purpan Hôpital Riquet Université Toulouse 3‐Paul Sabatier Toulouse France
| | - R. Menut
- Département d'Anesthésie Réanimation Centre Hospitalier Universitaire de Toulouse Purpan Hôpital Riquet Université Toulouse 3‐Paul Sabatier Toulouse France
| | - L. Bosch
- Département d'Anesthésie Réanimation Centre Hospitalier Universitaire de Toulouse Purpan Hôpital Riquet Université Toulouse 3‐Paul Sabatier Toulouse France
| | - V. Balech
- Département d'Anesthésie Réanimation Centre Hospitalier Universitaire de Toulouse Purpan Hôpital Riquet Université Toulouse 3‐Paul Sabatier Toulouse France
| | - N. Bonnevialle
- Département d'Orthopédie Traumatologie Centre Hospitalier Universitaire de Toulouse Purpan Hôpital Riquet Université Toulouse 3‐Paul Sabatier Toulouse France
| | - V. Minville
- Département d'Anesthésie Réanimation Centre Hospitalier Universitaire de Toulouse Purpan Hôpital Riquet Université Toulouse 3‐Paul Sabatier Toulouse France
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Roepman P, Bosch L, Samsom K, Schipper L, de Bruijn E, Hoes L, Riethorst I, Schoenmaker L, van der Kolk L, van Snellenberg H, Voest E, Cuppen E, Monkhorst K, Meijer G. WGS implementation in standard cancer diagnostics for every cancer patient (WIDE). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz257.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Bosch L, De Haan JJ, Seijkens T, Van Tiel C, Brans M, Pasterkamp G, Lutgens E, De Jager SCA. P2827Small molecule-mediated inhibition of CD40-TRAF6 reduces adverse cardiac remodelling in pressure overload induced heart failure. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2827] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- L Bosch
- University Medical Center Utrecht, Experimental Cardiology, Utrecht, Netherlands
| | - J J De Haan
- University Medical Center Utrecht, Experimental Cardiology, Utrecht, Netherlands
| | - T Seijkens
- Academic Medical Center of Amsterdam, Medical Biochemistry, Amsterdam, Netherlands
| | - C Van Tiel
- Academic Medical Center of Amsterdam, Medical Biochemistry, Amsterdam, Netherlands
| | - M Brans
- University Medical Center Utrecht, Experimental Cardiology, Utrecht, Netherlands
| | - G Pasterkamp
- University Medical Center Utrecht, Experimental Cardiology, Utrecht, Netherlands
| | - E Lutgens
- Academic Medical Center of Amsterdam, Medical Biochemistry, Amsterdam, Netherlands
| | - S C A De Jager
- University Medical Center Utrecht, Experimental Cardiology, Utrecht, Netherlands
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De Jager SCA, De Haan JJ, Bosch L, Brans MAD, Lee SJ, Kuster DWD, Mokry M, Van Der Velden J, Pasterkamp G, Sluijter JPG. P493The absences of Growth Differentiation Factor 15 aggravates adverse cardiac remodeling upon pressure-overload. Cardiovasc Res 2018. [DOI: 10.1093/cvr/cvy060.350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- S C A De Jager
- University Medical Center Utrecht, Experimental Cardiology, Utrecht, Netherlands
| | - J J De Haan
- University Medical Center Utrecht, Experimental Cardiology, Utrecht, Netherlands
| | - L Bosch
- University Medical Center Utrecht, Experimental Cardiology, Utrecht, Netherlands
| | - M A D Brans
- University Medical Center Utrecht, Experimental Cardiology, Utrecht, Netherlands
| | - S J Lee
- Johns Hopkins University of Baltimore, Molecular biology and genetics, Baltimore, United States of America
| | - D W D Kuster
- VU University Medical Center, Department of Physiology, Amsterdam, Netherlands
| | - M Mokry
- University Medical Center Utrecht, Center for Molecular Medicine & Regenerative Medicine Center, Utrecht, Netherlands
| | - J Van Der Velden
- VU University Medical Center, Department of Physiology, Amsterdam, Netherlands
| | - G Pasterkamp
- University Medical Center Utrecht, Department of Clinical Chemistry and Haematology, Utrecht, Netherlands
| | - J P G Sluijter
- University Medical Center Utrecht, Experimental Cardiology, Utrecht, Netherlands
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Álvarez-Rodríguez J, Ros-Freixedes R, Gol S, Henríquez-Rodríguez E, Pena RN, Bosch L, Estany J, Vilaró F, Tor M. Carcass lean-yield effects on the fatty acid and amino acid composition of Duroc pork and its technological quality after vacuum-aging. Anim Prod Sci 2018. [DOI: 10.1071/an17070] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Eighty purebred Duroc castrated male pigs slaughtered at 210 days of age were used to evaluate the effect of lean yield (European Union carcass grading based on lean content; or R, O and P classes) on the fatty acid and amino acid composition of raw pork (Day 1 post-mortem), and technological meat quality after vacuum aging up to 4, 6 and 8 days. A strong relationship between slaughter weight and carcass lean-yield was observed. Carcasses graded as having a lower lean yield were fatter with higher intramuscular fat concentration, and differences in proportions of fatty acids with increased monounsaturated fatty acid and decreased polyunsaturated fatty acid percentage, but without adverse effect on ultimate pH, drip loss or colour attributes. There were no effects of carcass lean-yield on amino acid composition of raw pork, with valine being the limiting amino acid relative to lysine by ~30–35%. Vacuum aging did not reduce the shear force of raw pork, which may not be indicative of cooked pork response. The lipid oxidation had an inverse relationship with the polyunsaturated fatty acid content of each pork class, and it did not increase due to vacuum aging up to 8 days. Meat fatness did not affect its amino acid balance and technological quality (colour, drip loss, shear force and lipid stability) but modified intramuscular fat composition.
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Bosch L, Sadurní M, Pacreu S. Reply to letter: Response to the letter «Anaesthesia management of accidental extubation in the prone position». Rev Esp Anestesiol Reanim 2017; 64:601. [PMID: 28693901 DOI: 10.1016/j.redar.2017.05.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Accepted: 05/03/2017] [Indexed: 06/07/2023]
Affiliation(s)
- L Bosch
- Servicio de Anestesiología y Reanimación, Parc de Salut Mar, Barcelona, España.
| | - M Sadurní
- Servicio de Anestesiología y Reanimación, Parc de Salut Mar, Barcelona, España
| | - S Pacreu
- Servicio de Anestesiología y Reanimación, Parc de Salut Mar, Barcelona, España
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Vázquez ML, Porthé V, Vargas I, Bosch L, Sanz-Barbero B, Heras JL, Plaza I, Ballesta M, Malmusi D, Ronda E. Changes in migrants’ access and in quality of healthcare during the Spanish economic crisis. MEISI. Eur J Public Health 2017. [DOI: 10.1093/eurpub/ckx187.391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
| | | | | | | | | | - JL Heras
- H.U.Ramón y Cajal, Madrid, Spain
| | | | | | | | - E Ronda
- Univ.Alicante, Alicante, Spain
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Bosch L, Sadurní M, Nuñez M, Pacreu S. Anesthesia management of accidental extubation in the prone position. Rev Esp Anestesiol Reanim 2017; 64:237-239. [PMID: 28089319 DOI: 10.1016/j.redar.2016.11.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Revised: 11/28/2016] [Accepted: 11/30/2016] [Indexed: 06/06/2023]
Affiliation(s)
- L Bosch
- Servicio de Anestesiología y Reanimación, Parc de Salut Mar, Barcelona, España.
| | - M Sadurní
- Servicio de Anestesiología y Reanimación, Parc de Salut Mar, Barcelona, España
| | - M Nuñez
- Servicio de Anestesiología y Reanimación, Parc de Salut Mar, Barcelona, España
| | - S Pacreu
- Servicio de Anestesiología y Reanimación, Parc de Salut Mar, Barcelona, España
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Bosch L, Fernández-Candil J, León A, Gambús PL. Influence of general anaesthesia on the brainstem. ACTA ACUST UNITED AC 2016; 64:157-167. [PMID: 27887735 DOI: 10.1016/j.redar.2016.09.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 09/15/2016] [Accepted: 09/15/2016] [Indexed: 11/17/2022]
Abstract
The exact role of the brainstem in the control of body functions is not yet well known and the same applies to the influence of general anaesthesia on brainstem functions. Nevertheless in all general anaesthesia the anaesthesiologist should be aware of the interaction of anaesthetic drugs and brainstem function in relation to whole body homeostasis. As a result of this interaction there will be changes in consciousness, protective reflexes, breathing pattern, heart rate, temperature or arterial blood pressure to name a few. Brainstem function can be explored using three different approaches: clinically, analyzing changes in brain electric activity or using neuroimaging techniques. With the aim of providing the clinician anaesthesiologist with a global view of the interaction between the anaesthetic state and homeostatic changes related to brainstem function, the present review article addresses the influence of anaesthetic drug effects on brainstem function through clinical exploration of cranial nerves and reflexes, analysis of electric signals such as electroencephalographic changes and what it is known about brainstem through the use of imaging techniques, more specifically functional magnetic resonance imaging.
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Affiliation(s)
- L Bosch
- Servicio de Anestesiología y Reanimación, Parc de Salut Mar (PSM), Barcelona, España.
| | - J Fernández-Candil
- Servicio de Anestesiología y Reanimación, Parc de Salut Mar (PSM), Barcelona, España
| | - A León
- Servicio de Neurología, Sección de Neurofisiología Clínica; Parc de Salut Mar (PSM), Barcelona, España
| | - P L Gambús
- Servicio de Anestesiología y Reanimación; Hospital CLINIC de Barcelona, Barcelona, España
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Porthé V, Heras-Monteiro J, Vargas I, Sanz B, Plaza I, Ballesta M, Bosch L, Ronda E, Malmusi D, Vázquez ML. Changes in quality of care for migrants during the economic crisis. Health workers’ perspective. Eur J Public Health 2016. [DOI: 10.1093/eurpub/ckw174.243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Porthé V, Heras-Monteir J, Vargas I, Sanz B, Plaza I, Ballesta M, Bosch L, Ronda E, Malmusi D, Vázquez ML. Changes in the quality of care provided for migrants in the context of economic crisis in Spain. Eur J Public Health 2016. [DOI: 10.1093/eurpub/ckw175.148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Álvarez-Rodriguez J, Ros-Freixedes R, Gol S, Henríquez-Rodríguez E, Pena RN, Bosch L, Estany J, Vilaró F, Tor M. 0894 Carcass grading effects on the fatty acid and amino acid composition of pork loin from Duroc pigs. J Anim Sci 2016. [DOI: 10.2527/jam2016-0894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Abstract
The amino acid profile of 11 samples of tiger nuts ( Cyperus esculentusL.) grown in the area of “L'Horta Nord” in Valencia (Spain) and one sample of African origin were determined, along with the amino acid contents of 10 samples of natural orgeat from Valencia. Protein was hydrolysed by hydrochloric acid at 110 °C for 23 h, and amino acids were derivatised with AQC and determined by RP-HPLC with fluorescence detection. The chromatographic conditions were optimised. The analytical parameters (detection and quantification limits, precision and accuracy) showed the method to be sufficiently sensitive and reproducible for determining amino acids resistant to acid hydrolysis in tiger nuts and orgeat. Arginine was the most abundant amino acid in both tiger nuts and orgeat and the lowest contents corresponding to histidine and tyrosine. The essential amino acid contents of tiger nuts and orgeat protein were greater than those proposed in the protein standard for adults by the FAO/WHO, with the exception of histidine. No significant differences were found among the arginine, lysine and isoleucine amino acid contents in tiger nuts from Valencia, Alboraya and Alm‡ssera; nor were they found among amino acids in tiger nuts from Valencia and Alm‡ssera, with the exception of tyrosine.
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Affiliation(s)
| | - A. Alegría
- Nutrition and Food Chemistry, University of Valencia. Avda. Vicente Andrés Estellés s/n, 46100 Burjassot, Spain
| | - R. Farré
- Nutrition and Food Chemistry, University of Valencia. Avda. Vicente Andrés Estellés s/n, 46100 Burjassot, Spain
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Bosch L, Villar T, Latorre MY, Pacreu S. Femoral and sciatic nerve block for knee arthroscopy in a patient with acute intermittent porphyria. Rev Esp Anestesiol Reanim 2016; 63:423-426. [PMID: 27220836 DOI: 10.1016/j.redar.2016.03.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 03/11/2016] [Accepted: 03/16/2016] [Indexed: 06/05/2023]
Abstract
Acute intermittent porphyria is an autosomal dominant disorder that results from a partial deficiency of porphobilinogen deaminase and that causes very severe symptoms. Attacks may be triggered by a series of drugs and by other factors that the anesthesiologist should be aware of in order to reduce morbidity and mortality. Our objective is to review anesthetic considerations in acute intermittent porphyria. We present the case of a patient diagnosed with acute intermittent porphyria who was scheduled for knee arthroscopy. The anesthetic technique used was a femoral and sciatic nerve block under sedation with an infusion of remifentanil. The surgery proceeded without incident and the patient was discharged home after 24h. We consider the use of a peripheral plexus block of the lower limb to have been the safest anesthetic technique for this patient.
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Affiliation(s)
- L Bosch
- Department of Anaesthesiology and Reanimation and Therapy of Pain Parc de Salut Mar, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - T Villar
- Department of Anaesthesiology and Reanimation and Therapy of Pain Parc de Salut Mar, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - M Y Latorre
- Department of Anaesthesiology and Reanimation and Therapy of Pain Parc de Salut Mar, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - S Pacreu
- Department of Anaesthesiology and Reanimation and Therapy of Pain Parc de Salut Mar, Universitat Autònoma de Barcelona, Barcelona, Spain.
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Gowran A, Kulikova T, Lewis FC, Foldes G, Fuentes L, Viiri LE, Spinelli V, Costa A, Perbellini F, Sid-Otmane C, Bax NAM, Pekkanen-Mattila M, Schiano C, Chaloupka A, Forini F, Sarkozy M, De Jager SCA, Vajen T, Glezeva N, Lee HW, Golovkin A, Kucera T, Musikhina NA, Korzhenkov NP, Santuchi MDEC, Munteanu D, Garcia RG, Ang R, Usui S, Kamilova U, Jumeau C, Aberg M, Kostina DA, Brandt MM, Muntean D, Lindner D, Sadaba R, Bacova B, Nikolov A, Sedmera D, Ryabov V, Neto FP, Lynch M, Portero V, Kui P, Howarth FC, Gualdoni A, Prorok J, Diolaiuti L, Vostarek F, Wagner M, Abela MA, Nebert C, Xiang W, Kloza M, Maslenko A, Grechanyk M, Bhattachariya A, Morawietz H, Babaeva AR, Martinez Sanchez SM, Krychtiuk KA, Starodubova J, Fiorelli S, Rinne P, Ozkaramanli Gur D, Hofbauer T, Starodubova J, Stellos K, Pinon P, Tsoref O, Thaler B, Fraga-Silva RA, Fuijkschot WW, Shaaban MNS, Matthaeus C, Deluyker D, Scardigli M, Zahradnikova A, Dominguez A, Kondrat'eva D, Sosorburam T, Murarikova M, Duerr GD, Griecsova L, Portnichenko VI, Smolina N, Duicu OANAM, Elder JM, Zaglia T, Lorenzon A, Ruperez C, Woudstra L, Suffee N, De Lucia C, Tsoref O, Russell-Hallinan A, Menendez-Montes I, Kapelko VI, Emmens RW, Hetman O, Van Der Laarse WJ, Goncharov S, Adao R, Huisamen B, Sirenko O, Kamilova U, Nassiri I, Tserendavaa SUMIYA, Yushko K, Baldan Martin M, Falcone C, Vigorelli V, Nigro P, Pompilio G, Stepanova O, Valikhov M, Samko A, Masenko V, Tereschenko S, Teoh T, Domenjo-Vila E, Theologou T, Field M, Awad W, Yasin M, Nadal-Ginard B, Ellison-Hughes GM, Hellen N, Vittay O, Harding SE, Gomez-Cid L, Fernandez-Santos ME, Suarez-Sancho S, Plasencia V, Climent A, Sanz-Ruiz R, Hedhammar M, Atienza F, Fernandez-Aviles F, Kiamehr M, Oittinen M, Viiri KM, Kaikkonen M, Aalto-Setala K, Diolaiuti L, Laurino A, Sartiani L, Vona A, Zanardelli M, Cerbai E, Failli P, Hortigon-Vinagre MP, Van Der Heyden M, Burton FL, Smith GL, Watson S, Scigliano M, Tkach S, Alayoubi S, Harding SE, Terracciano CM, Ly HQ, Mauretti A, Van Marion MH, Van Turnhout MC, Van Der Schaft DWJ, Sahlgren CM, Goumans MJ, Bouten CVC, Vuorenpaa H, Penttinen K, Sarkanen R, Ylikomi T, Heinonen T, Aalto-Setala K, Grimaldi V, Aprile M, Esposito R, Maiello C, Soricelli A, Colantuoni V, Costa V, Ciccodicola A, Napoli C, Rowe GC, Johnson K, Arany ZP, Del Monte F, D'aurizio R, Kusmic C, Nicolini G, Baumgart M, Groth M, Ucciferri N, Iervasi G, Pitto L, Pipicz M, Gaspar R, Siska A, Foldesi I, Kiss K, Bencsik P, Thum T, Batkai S, Csont T, Haan JJ, Bosch L, Brans MAD, Van De Weg SM, Deddens JC, Lee SJ, Sluijter JPG, Pasterkamp G, Werner I, Projahn D, Staudt M, Curaj A, Soenmez TT, Simsekyilmaz S, Hackeng TM, Von Hundelshausen P, Koenen RR, Weber C, Liehn EA, Santos-Martinez M, Medina C, Watson C, Mcdonald K, Gilmer J, Ledwidge M, Song SH, Lee MY, Park MH, Choi JC, Ahn JH, Park JS, Oh JH, Choi JH, Lee HC, Cha KS, Hong TJ, Kudryavtsev I, Serebryakova M, Malashicheva A, Shishkova A, Zhiduleva E, Moiseeva O, Durisova M, Blaha M, Melenovsky V, Pirk J, Kautzner J, Petelina TI, Gapon LI, Gorbatenko EA, Potolinskaya YV, Arkhipova EV, Solodenkova KS, Osadchuk MA, Dutra MF, Oliveira FCB, Silva MM, Passos-Silva DG, Goncalves R, Santos RAS, Da Silva RF, Gavrilescu CM, Paraschiv CM, Manea P, Strat LC, Gomez JMG, Merino D, Hurle MA, Nistal JF, Aires A, Cortajarena AL, Villar AV, Abramowitz J, Birnbaumer L, Gourine AV, Tinker A, Takamura M, Takashima S, Inoue O, Misu H, Takamura T, Kaneko S, Alieva TOHIRA, Mougenot N, Dufilho M, Hatem S, Siegbahn A, Kostina AS, Uspensky VE, Moiseeva OM, Kostareva AA, Malashicheva AB, Van Dijk CGM, Chrifi I, Verhaar MC, Duncker DJ, Cheng C, Sturza A, Petrus A, Duicu O, Kiss L, Danila M, Baczko I, Jost N, Gotzhein F, Schon J, Schwarzl M, Hinrichs S, Blankenberg S, Volker U, Hammer E, Westermann D, Martinez-Martinez E, Arrieta V, Fernandez-Celis A, Jimenez-Alfaro L, Melero A, Alvarez-Asiain V, Cachofeiro V, Lopez-Andres N, Tribulova N, Wallukat G, Knezl V, Radosinska J, Barancik M, Tsinlikov I, Tsinlikova I, Nicoloff G, Blazhev A, Pesevski Z, Kvasilova A, Stopkova T, Eckhardt A, Buffinton CM, Nanka O, Kercheva M, Suslova T, Gusakova A, Ryabova T, Markov V, Karpov R, Seemann H, Alcantara TC, Santuchi MDEC, Fonseca SG, Da Silva RF, Barallobre-Barreiro J, Oklu R, Fava M, Baig F, Yin X, Albadawi H, Jahangiri M, Stoughton J, Mayr M, Podliesna SP, Veerman CCV, Verkerk AOV, Klerk MK, Lodder EML, Mengarelli IM, Bezzina CRB, Remme CAR, Takacs H, Polyak A, Morvay N, Lepran I, Tiszlavicz L, Nagy N, Ordog B, Farkas A, Forster T, Varro A, Farkas AS, Jayaprakash P, Parekh K, Ferdous Z, Oz M, Dobrzynski H, Adrian TE, Landi S, Bonzanni M, D'souza A, Boyett M, Bucchi A, Baruscotti M, Difrancesco D, Barbuti A, Kui P, Takacs H, Oravecz K, Hezso T, Polyak A, Levijoki J, Pollesello P, Koskelainen T, Otsomaa L, Farkas AS, Papp JGY, Varro A, Toth A, Acsai K, Dini L, Mazzoni L, Sartiani L, Cerbai E, Mugelli A, Svatunkova J, Sedmera D, Deffge C, Baer C, Weinert S, Braun-Dullaeus RC, Herold J, Cassar AC, Zahra GZ, Pllaha EP, Dingli PD, Montefort SM, Xuereb RGX, Aschacher T, Messner B, Eichmair E, Mohl W, Reglin B, Rong W, Nitzsche B, Maibier M, Guimaraes P, Ruggeri A, Secomb TW, Pries AR, Baranowska-Kuczko M, Karpinska O, Kusaczuk M, Malinowska B, Kozlowska H, Demikhova N, Vynnychenko L, Prykhodko O, Grechanyk N, Kuryata A, Cottrill KA, Du L, Bjorck HM, Maleki S, Franco-Cereceda A, Chan SY, Eriksson P, Giebe S, Cockcroft N, Hewitt K, Brux M, Brunssen C, Tarasov AA, Davidov SI, Reznikova EA, Tapia Abellan A, Angosto Bazarra D, Pelegrin Vivancos P, Montoro Garcia S, Kastl SP, Pongratz T, Goliasch G, Gaspar L, Maurer G, Huber K, Dostal E, Pfaffenberger S, Oravec S, Wojta J, Speidl WS, Osipova I, Sopotova I, Eligini S, Cosentino N, Marenzi G, Tremoli E, Rami M, Ring L, Steffens S, Gur O, Gurkan S, Mangold A, Scherz T, Panzenboeck A, Staier N, Heidari H, Mueller J, Lang IM, Osipova I, Sopotova I, Gatsiou A, Stamatelopoulos K, Perisic L, John D, Lunella FF, Eriksson P, Hedin U, Zeiher A, Dimmeler S, Nunez L, Moure R, Marron-Linares G, Flores X, Aldama G, Salgado J, Calvino R, Tomas M, Bou G, Vazquez N, Hermida-Prieto M, Vazquez-Rodriguez JM, Amit U, Landa N, Kain D, Tyomkin D, David A, Leor J, Hohensinner PJ, Baumgartner J, Krychtiuk KA, Maurer G, Huber K, Baik N, Miles LA, Wojta J, Seeman H, Montecucco F, Da Silva AR, Costa-Fraga FP, Anguenot L, Mach FP, Santos RAS, Stergiopulos N, Da Silva RF, Kupreishvili K, Vonk ABA, Smulders YM, Van Hinsbergh VWM, Stooker W, Niessen HWM, Krijnen PAJ, Ashmawy MM, Salama MA, Elamrosy MZ, Juettner R, Rathjen FG, Bito V, Crocini C, Ferrantini C, Gabbrielli T, Silvestri L, Coppini R, Tesi C, Cerbai E, Poggesi C, Pavone FS, Sacconi L, Mackova K, Zahradnik I, Zahradnikova A, Diaz I, Sanchez De Rojas De Pedro E, Hmadcha K, Calderon Sanchez E, Benitah JP, Gomez AM, Smani T, Ordonez A, Afanasiev SA, Egorova MV, Popov SV, Wu Qing P, Cheng X, Carnicka S, Pancza D, Jasova M, Kancirova I, Ferko M, Ravingerova T, Wu S, Schneider M, Marggraf V, Verfuerth L, Frede S, Boehm O, Dewald O, Baumgarten G, Kim SC, Farkasova V, Gablovsky I, Bernatova I, Ravingerova T, Nosar V, Portnychenko A, Drevytska T, Mankovska I, Gogvadze V, Sejersen T, Kostareva A, Sturza A, Wolf A, Privistirescu A, Danila M, Muntean D, O ' Gara P, Sanchez-Alonso JL, Harding SE, Lyon AR, Prando V, Pianca N, Lo Verso F, Milan G, Pesce P, Sandri M, Mongillo M, Beffagna G, Poloni G, Dazzo E, Sabatelli P, Doliana R, Polishchuk R, Carnevale D, Lembo G, Bonaldo P, Braghetta P, Rampazzo A, Cairo M, Giralt M, Villarroya F, Planavila A, Biesbroek PS, Emmens RWE, Juffermans LJM, Van Der Wall AC, Van Rossum AC, Niessen JWM, Krijnen PAJ, Moor Morris T, Dilanian G, Farahmand P, Puceat M, Hatem S, Gambino G, Petraglia L, Elia A, Komici K, Femminella GD, D'amico ML, Pagano G, Cannavo A, Liccardo D, Koch WJ, Nolano M, Leosco D, Ferrara N, Rengo G, Amit U, Landa N, Kain D, Leor J, Neary R, Shiels L, Watson C, Baugh J, Palacios B, Escobar B, Alonso AV, Guzman G, Ruiz-Cabello J, Jimenez-Borreguero LJ, Martin-Puig S, Lakomkin VL, Lukoshkova EV, Abramov AA, Gramovich VV, Vyborov ON, Ermishkin VV, Undrovinas NA, Shirinsky VP, Smilde BJ, Woudstra L, Fong Hing G, Wouters D, Zeerleder S, Murk JL, Van Ham SM, Heymans S, Juffermans LJM, Van Rossum AC, Niessen JWM, Krijnen PAJ, Krakhmalova O, Van Groen D, Bogaards SJP, Schalij I, Portnichenko GV, Tumanovska LV, Goshovska YV, Lapikova-Bryhinska TU, Nagibin VS, Dosenko VE, Mendes-Ferreira P, Maia-Rocha C, Santos-Ribeiro D, Potus F, Breuils-Bonnet S, Provencher S, Bonnet S, Rademaker M, Leite-Moreira AF, Bras-Silva C, Lopes J, Kuryata O, Lusynets T, Alikulov I, Nourddine M, Azzouzi L, Habbal R, Tserendavaa SUMIYA, Enkhtaivan ODKHUU, Enkhtaivan ODKHUU, Shagdar ZORIGO, Shagdar ZORIGO, Malchinkhuu MUNKHZ, Malchinkhuu MUNLHZ, Koval S, Starchenko T, Mourino-Alvarez L, Gonzalez-Calero L, Sastre-Oliva T, Lopez JA, Vazquez J, Alvarez-Llamas G, Ruilope LUISM, De La Cuesta F, Barderas MG, Bozzini S, D'angelo A, Pelissero G. Poster session 3Cell growth, differentiation and stem cells - Heart511The role of the endocannabinoid system in modelling muscular dystrophy cardiac disease with induced pluripotent stem cells.512An emerging role of T lymphocytes in cardiac regenerative processes in heart failure due to dilated cardiomyopathy513Canonical wnt signaling reverses the ‘aged/senescent’ human endogenous cardiac stem cell phenotype514Hippo signalling modulates survival of human induced pluripotent stem cell-derived cardiomyocytes515Biocompatibility of mesenchymal stem cells with a spider silk matrix and its potential use as scaffold for cardiac tissue regeneration516A snapshot of genome-wide transcription in human induced pluripotent stem cell-derived hepatocyte-like cells (iPSC-HLCs)517Can NOS/sGC/cGK1 pathway trigger the differentiation and maturation of mouse embryonic stem cells (ESCs)?518Introduction of external Ik1 to human-induced pluripotent stem cell-derived cardiomyocytes via Ik1-expressing HEK293519Cell therapy of the heart studied using adult myocardial slices in vitro520Enhancement of the paracrine potential of human adipose derived stem cells when cultured as spheroid bodies521Mechanosensitivity of cardiomyocyte progenitor cells: the strain response in 2D and 3D environments522The effect of the vascular-like network on the maturation of the human induced pluripotent stem cell derived cardiomyocytes.Transcriptional control and RNA species - Heart525Gene expression regulation in heart failure: from pathobiology to bioinformatics526Human transcriptome in idiopathic dilated cardiomyopathy - a novel high throughput screening527A high-throghput approach unveils putative miRNA-mediated mitochondria-targeted cardioprotective circuits activated by T3 in the post ischemia reperfusion setting528The effect of uraemia on the expression of miR-212/132 and the calcineurin pathway in the rat heartCytokines and cellular inflammation - Heart531Lack of growth differentiation factor 15 aggravates adverse cardiac remodeling upon pressure-overload in mice532Blocking heteromerization of platelet chemokines ccl5 and cxcl4 reduces inflammation and preserves heart function after myocardial infarction533Is there an association between low-dose aspirin use and clinical outcome in HFPEF? Implications of modulating monocyte function and inflammatory mediator release534N-terminal truncated intracellular matrix metalloproteinase-2 expression in diabetic heart.535Expression of CD39 and CD73 on peripheral T-cell subsets in calcific aortic stenosis536Mast cells in the atrial myocardium of patients with atrial fibrillation: a comparison with patients in sinus rhythm539Characteristics of the inflammatory response in patients with coronary artery disease and arterial hypertension540Pro-inflammatory cytokines as cardiovascular events predictors in rheumatoid arthritis and asymptomatic atherosclerosis541Characterization of FVB/N murinic bone marrow-derived macrophage polarization into M1 and M2 phenotypes542The biological expression and thoracic anterior pain syndromeSignal transduction - Heart545The association of heat shock protein 90 and TGFbeta receptor I is involved in collagen production during cardiac remodelling in aortic-banded mice546Loss of the inhibitory GalphaO protein in the rostral ventrolateral medulla of the brainstem leads to abnormalities in cardiovascular reflexes and altered ventricular excitablitiy547Selenoprotein P regulates pressure overload-induced cardiac remodeling548Study of adenylyl cyclase activity in erythrocyte membranes in patients with chronic heart failure549Direct thrombin inhibitors inhibit atrial myocardium hypertrophy in a rat model of heart failure and atrial remodeling550Tissue factor / FVIIa transactivates the IGF-1R by a Src-dependent phosphorylation of caveolin-1551Notch signaling is differently altered in endothelial and smooth muscle cells of ascending aortic aneurysm patients552Frizzled 5 expression is essential for endothelial proliferation and migration553Modulation of vascular function and ROS production by novel synthetic benzopyran analogues in diabetes mellitusExtracellular matrix and fibrosis - Heart556Cardiac fibroblasts as inflammatory supporter cells trigger cardiac inflammation in heart failure557A role for galectin-3 in calcific aortic valve stenosis558Omega-3 polyunsaturated fatty acids- can they decrease risk for ventricular fibrillation?559Serum levels of elastin derived peptides and circulating elastin-antielastin immune complexes in sera of patients with coronary artery disease560Endocardial fibroelastosis is secondary to hemodynamic alterations in the chick model of hypoplastic left heart syndrome561Dynamics of serum levels of matrix metalloproteinases in primary anterior STEMI patients564Deletion of the alpha-7 nicotinic acetylcholine receptor changes the vascular remodeling induced by transverse aortic constriction in mice.565Extracellular matrix remodelling in response to venous hypertension: proteomics of human varicose veinsIon channels, ion exchangers and cellular electrophysiology - Heart568Microtubule-associated protein RP/EB family member 1 modulates sodium channel trafficking and cardiac conduction569Investigation of electrophysiological abnormalities in a rabbit athlete's heart model570Upregulation of expression of multiple genes in the atrioventricular node of streptozotocin-induced diabetic rat571miR-1 as a regulator of sinoatrial rhythm in endurance training adaptation572Selective sodium-calcium exchanger inhibition reduces myocardial dysfunction associated with hypokalaemia and ventricular fibrillation573Effect of racemic and levo-methadone on action potential of human ventricular cardiomyocytes574Acute temperature effects on the chick embryonic heart functionVasculogenesis, angiogenesis and arteriogenesis577Clinical improvement and enhanced collateral vessel growth after monocyte transplantation in mice578The role of HIF-1 alpha, VEGF and obstructive sleep apnoea in the development of coronary collateral circulation579Initiating cardiac repair with a trans-coronary sinus catheter intervention in an ischemia/reperfusion porcine animal model580Early adaptation of pre-existing collaterals after acute arteriolar and venular microocclusion: an in vivo study in chick chorioallantoic membraneEndothelium583EDH-type responses to the activator of potassium KCa2.3 and KCa3.1 channels SKA-31 in the small mesenteric artery from spontaneously hypertensive rats584The peculiarities of endothelial dysfunction in patients with chronic renocardial syndrome585Endothelial dysfunction, atherosclerosis of the carotid arteries and level of leptin in patient with coronary heart disease in combination with hepatic steatosis depend from body mass index.586Role of non-coding RNAs in thoracic aortic aneurysm associated with bicuspid aortic valve587Cigarette smoke extract abrogates atheroprotective effects of high laminar flow on endothelial function588The prognostic value of anti-connective tissue antibodies in coronary heart disease and asymptomatic atherosclerosis589Novel potential properties of bioactive peptides from spanish dry-cured ham on the endothelium.Lipids592Intermediate density lipoprotein is associated with monocyte subset distribution in patients with stable atherosclerosis593The characteristics of dyslipidemia in rheumatoid arthritisAtherosclerosis596Macrophages differentiated in vitro are heterogeneous: morphological and functional profile in patients with coronary artery disease597Palmitoylethanolamide promotes anti-inflammatory phenotype of macrophages and attenuates plaque formation in ApoE-/- mice598Amiodarone versus esmolol in the perioperative period: an in vitro study of coronary artery bypass grafts599BMPRII signaling of fibrocytes, a mesenchymal progenitor cell population, is increased in STEMI and dyslipidemia600The characteristics of atherogenesis and systemic inflammation in rheumatoid arthritis601Role of adenosine-to-inosine RNA editing in human atherosclerosis602Presence of bacterial DNA in thrombus aspirates of patients with myocardial infarction603Novel E-selectin binding polymers reduce atherosclerotic lesions in ApoE(-/-) mice604Differential expression of the plasminogen receptor Plg-RKT in monocyte and macrophage subsets - possible functional consequences in atherogenesis605Apelin-13 treatment enhances the stability of atherosclerotic plaques606Mast cells are increased in the media of coronary lesions in patients with myocardial infarction and favor atherosclerotic plaque instability607Association of neutrophil to lymphocyte ratio with presence of isolated coronary artery ectasiaCalcium fluxes and excitation-contraction coupling610The coxsackie- and adenovirus receptor (CAR) regulates calcium homeostasis in the developing heart611HMW-AGEs application acutely reduces ICaL in adult cardiomyocytes612Measuring electrical conductibility of cardiac T-tubular systems613Postnatal development of cardiac excitation-contraction coupling in rats614Role of altered Ca2+ homeostasis during adverse cardiac remodeling after ischemia/reperfusion615Experimental study of sarcoplasmic reticulum dysfunction and energetic metabolism in failing myocardium associated with diabetes mellitusHibernation, stunning and preconditioning618Volatile anesthetic preconditioning attenuates ischemic-reperfusion injury in type II diabetic patients undergoing on-pump heart surgery619The effect of early and delayed phase of remote ischemic preconditioning on ischemia-reperfusion injury in the isolated hearts of healthy and diabetic rats620Post-conditioning with 1668-thioate leads to attenuation of the inflammatory response and remodeling with less fibrosis and better left ventricular function in a murine model of myocardial infarction621Maturation-related changes in response to ischemia-reperfusion injury and in effects of classical ischemic preconditioning and remote preconditioningMitochondria and energetics624Phase changes in myocardial mitochondrial respiration caused by hypoxic preconditioning or periodic hypoxic training625Desmin mutations depress mitochondrial metabolism626Methylene blue modulates mitochondrial function and monoamine oxidases-related ROS production in diabetic rat hearts627Doxorubicin modulates the real-time oxygen consumption rate of freshly isolated adult rat and human ventricular cardiomyocytesCardiomyopathies and fibrosis630Effects of genetic or pharmacologic inhibition of the ubiquitin/proteasome system on myocardial proteostasis and cardiac function631Suppression of Wnt signalling in a desmoglein-2 transgenic mouse model for arrhythmogenic cardiomyopathy632Cold-induced cardiac hypertrophy is reversed after thermo-neutral deacclimatization633CD45 is a sensitive marker to diagnose lymphocytic myocarditis in endomyocardial biopsies of living patients and in autopsies634Atrial epicardial adipose tissue derives from epicardial progenitors635Caloric restriction ameliorates cardiac function, sympathetic cardiac innervation and beta-adrenergic receptor signaling in an experimental model of post-ischemic heart failure636High fat diet improves cardiac remodelling and function after extensive myocardial infarction in mice637Epigenetic therapy reduces cardiac hypertrophy in murine models of heart failure638Imbalance of the VHL/HIF signaling in WT1+ Epicardial Progenitors results in coronary vascular defects, fibrosis and cardiac hypertrophy639Diastolic dysfunction is the first stage of the developing heart failure640Colchicine aggravates coxsackievirus B3 infection in miceArterial and pulmonary hypertension642Osteopontin as a marker of pulmonary hypertension in patients with coronary heart disease combined with chronic obstructive pulmonary disease643Myocardial dynamic stiffness is increased in experimental pulmonary hypertension partly due to incomplete relaxation644Hypotensive effect of quercetin is possibly mediated by down-regulation of immunotroteasome subunits in aorta of spontaneously hypertensive rats645Urocortin-2 improves right ventricular function and attenuates experimental pulmonary arterial hypertension646A preclinical evaluation of the anti-hypertensive properties of an aqueous extract of Agathosma (Buchu)Biomarkers648The adiponectin level in hypertensive females with rheumatoid arthritis and its relationship with subclinical atherosclerosis649Markers for identification of renal dysfunction in the patients with chronic heart failure650cardio-hepatic syndromes in chronic heart failure: North Africa profile651To study other biomarkers that assess during myocardial infarction652Interconnections of apelin levels with parameters of lipid metabolism in hypertension patients653Plasma proteomics in hypertension: prediction and follow-up of albuminuria during chronic renin-angiotensin system suppression654Soluble RAGE levels in plasma of patients with cerebrovascular events. Cardiovasc Res 2016. [DOI: 10.1093/cvr/cvw150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Smithson A, Bosch L, Ramos X, Martínez-Santana V. [Impact of an intervention to improve indwelling urinary catheter use and reduce urinary tract infections]. Rev Calid Asist 2016; 31:227-233. [PMID: 26705914 DOI: 10.1016/j.cali.2015.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 10/21/2015] [Accepted: 10/25/2015] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To evaluate the impact of an intervention regarding the adequate use and improvement in the care of indwelling urinary catheters (IUC) and the frequency of catheter-associated urinary tract infections (CAUTI) in hospitalised patients. MATERIAL AND METHODS A quasi-experimental study was performed. Basic data on the use of IUC were recorded before and after the intervention, which consisted of training on IUC use and the implementation of reminders for their removal. RESULTS There were 197 patients in the pre-intervention period and 194 in the post-intervention period. There was a non-significant decrease in the prevalence (17.3% versus 15.3%) and days with IUC (4.8±5.8 versus 4.3±4.2). There was an increase in adequately prescribed (41.1% versus 61.9%; P<.001) and attached IUC (0% vs 38.1%; P<.001), and a decrease in the urine collection bags on the floor (26.4% vs 6,2%; P<.001). The increase in the appropriate indications for IUC (86.8% vs 92.3%) and the decrease in CAUTI incidence density (2.1 vs 1.2 episodes/1,000 catheter days) were not significant, although above the standards. CONCLUSIONS After the intervention there was a significant increase in the number of adequately prescribed and attached IUC, and a decrease in the number of urine collection bags on the floor. Improvement in IUC indication and frequency of CAUTI reached the quality standards. Educational activities and the use of reminders improve safety of hospitalised patients with IUC.
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Affiliation(s)
- A Smithson
- Unidad de Infecciones, Fundació Hospital de l'Esperit Sant, Santa Coloma de Gramenet, Barcelona, España.
| | - L Bosch
- Enfermería, Fundació Hospital de l'Esperit Sant, Santa Coloma de Gramenet, Barcelona, España
| | - X Ramos
- Servicio de Medicina Interna, Fundació Hospital de l'Esperit Sant, Santa Coloma de Gramenet, Barcelona, España
| | - V Martínez-Santana
- Servicio de Farmacia. Fundació Hospital de l'Esperit Sant, Santa Coloma de Gramenet, Barcelona, España
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Henriquez-Rodriguez E, Bosch L, Tor M, Pena RN, Estany J. The effect of SCD and LEPR genetic polymorphisms on fat content and composition is maintained throughout fattening in Duroc pigs. Meat Sci 2016; 121:33-39. [PMID: 27240305 DOI: 10.1016/j.meatsci.2016.05.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 05/18/2016] [Accepted: 05/19/2016] [Indexed: 12/11/2022]
Abstract
The effects of the stearoyl-CoA desaturase (SCD; AY487830:g.2228T>C) and leptin receptor (LEPR; NM_001024587:g.1987C>T) polymorphisms on fat content and fatty acid (FA) composition were investigated throughout fattening. Samples of Longissimus thoracis (LT) and subcutaneous fat (SF) from 214 Duroc barrows were collected from 160days to slaughter age (220days) using a longitudinal design. Results indicated that the positive effect of the T allele at the SCD gene on monounsaturated FA and of the T allele at the LEPR gene on saturated FA are maintained throughout the growing-finishing period, both in LT and SF. In LEPR, however, compositional changes, particularly in SF, are a result of increased fatness. There is very limited evidence of genotype by age interaction, and thus it is concluded that the combined selection for the SCD T and LEPR C alleles is a good strategy to increase the MUFA/SFA ratio regardless of the age at slaughter.
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Affiliation(s)
- E Henriquez-Rodriguez
- Departament de Producció Animal, Universitat de Lleida-Agrotecnio Centre, Rovira Roure 191, 25198 Lleida, Spain
| | - L Bosch
- Departament de Producció Animal, Universitat de Lleida-Agrotecnio Centre, Rovira Roure 191, 25198 Lleida, Spain
| | - M Tor
- Departament de Producció Animal, Universitat de Lleida-Agrotecnio Centre, Rovira Roure 191, 25198 Lleida, Spain
| | - R N Pena
- Departament de Producció Animal, Universitat de Lleida-Agrotecnio Centre, Rovira Roure 191, 25198 Lleida, Spain
| | - J Estany
- Departament de Producció Animal, Universitat de Lleida-Agrotecnio Centre, Rovira Roure 191, 25198 Lleida, Spain.
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Porthé V, Vargas I, Malmusi D, Sanz B, Otero L, Bosch L, Ronda E, Heras-Mosteriro J, Plaza I, Ballesta M, Llopart JR, Colomes L, Vázquez ML. Economic crisis, cutbacks and migrants’ access to healthcare in Spain: health workers’ perspective. Eur J Public Health 2015. [DOI: 10.1093/eurpub/ckv175.160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- V Porthé
- Health Policy and Health Services Research Group, Consortium for Health Care and Social Services of Catalonia, Barcelona, Spain
| | - I Vargas
- Health Policy and Health Services Research Group, Consortium for Health Care and Social Services of Catalonia, Barcelona, Spain
| | - D Malmusi
- Health Information Systems, Agència de Salut Pública de Barcelona, Barcelona, Spain
| | - B Sanz
- Escuela Nacional de Sanidad, Instituto de Salud Carlos III, Madrid, Spain
- CIBER de Epidemiología y Salud Pública, CIBERESP, Madrid, Spain
| | - L Otero
- CIBER de Epidemiología y Salud Pública, CIBERESP, Madrid, Spain
- Sección Departamental de Enfermería, Facultad de Medicina, Universidad Autónoma de Madrid, Madrid, Spain
| | - L Bosch
- Unitat de Atenció al Ciutadà i Comunicació. Serveis de Salut Integrats del Baix Empordà Palamós, Girona, Spain
| | - E Ronda
- Public Health Department, University of Alicante, Alicante, Spain
| | - J Heras-Mosteriro
- Public Health and Preventive Medicine Service, Universitary Hospital Ramón y Cajal, Madrid, Spain
| | - I Plaza
- Evaluation, Information network and Quality Unit, Catalonian Health Institute, Barcelona, Spain
| | - M Ballesta
- Department of Epidemiology, Murcia Regional Health Council, Murcia, Spain
| | - JR Llopart
- General Surgery Department, Badalona Serveis Assistencials, Badalona, Spain
| | - L Colomes
- Health Policy and Health Services Research Group; Strategic Planning Division. SAGESSA Group, Reus, Spain
| | - ML Vázquez
- Health Policy and Health Services Research Group, Consortium for Health Care and Social Services of Catalonia, Barcelona, Spain
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Phadke R, Rossor A, Benoy V, Kalmar B, King R, Greensmith L, Bosch L, Reilly M, Houlden H. Neuropathological findings from a human post mortem case of distal hereditary motor neuropathy (dHMN) due to p.Ser135Phe HSPB1 mutation and transgenic mice with mutant or wild-type HSP27 overexpression. Neuromuscul Disord 2015. [DOI: 10.1016/j.nmd.2015.06.348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Hoffmans R, Bosch L, Klumper E. Comparison of study designs, objectives and results of Phase I trials with cytotoxic versus non-cytotoxic anticancer agents. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv090.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Ros-Freixedes R, Reixach J, Bosch L, Tor M, Estany J. Genetic correlations of intramuscular fat content and fatty acid composition among muscles and with subcutaneous fat in Duroc pigs1. J Anim Sci 2014; 92:5417-25. [DOI: 10.2527/jas.2014-8202] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- R. Ros-Freixedes
- Departament de Producció Animal – Agrotecnio Center, Universitat de Lleida, 191 Rovira Roure, 25198 Lleida, Catalonia, Spain
| | - J. Reixach
- Selección Batallé S.A., Av. Segadors s/n, 17421 Riudarenes, Spain
| | - L. Bosch
- Departament d'Enginyeria Química, Agrària i Tecnologia Agroalimentària, Universitat de Girona, Campus de Montilivi, 17071 Girona, Spain
| | - M. Tor
- Departament de Producció Animal – Agrotecnio Center, Universitat de Lleida, 191 Rovira Roure, 25198 Lleida, Catalonia, Spain
| | - J. Estany
- Departament de Producció Animal – Agrotecnio Center, Universitat de Lleida, 191 Rovira Roure, 25198 Lleida, Catalonia, Spain
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Vargas-Leguás H, Ruiz A, Pequeño S, López D, Vargas I, López LA, Bosch L, Vázquez ML. Access to care for immigrant population from the perspective of health workers and users in Andalusia and Catalonia. Eur J Public Health 2013. [DOI: 10.1093/eurpub/ckt123.210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Ros-Freixedes R, Reixach J, Bosch L, Tor M, Estany J. Response to selection for decreased backfat thickness at restrained intramuscular fat content in Duroc pigs1. J Anim Sci 2013; 91:3514-21. [DOI: 10.2527/jas.2013-6282] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- R. Ros-Freixedes
- Departament de Producció Animal, Universitat de Lleida, 191 Rovira Roure, 25198 Lleida, Spain
| | - J. Reixach
- Selección Batallé S.A., Av. Segadors s/n, 17421 Riudarenes, Spain
| | - L. Bosch
- Departament d'Enginyeria Química, Agrària i Tecnologia Agroalimentària, Universitat de Girona, Campus de Montilivi, 17071 Girona, Spain
| | - M. Tor
- Departament de Producció Animal, Universitat de Lleida, 191 Rovira Roure, 25198 Lleida, Spain
| | - J. Estany
- Departament de Producció Animal, Universitat de Lleida, 191 Rovira Roure, 25198 Lleida, Spain
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Ramon-Casas M, Bosch L, Iriondo M, Krauel X. Word recognition and phonological representation in very low birth weight preterms. Early Hum Dev 2013; 89:55-63. [PMID: 22884316 DOI: 10.1016/j.earlhumdev.2012.07.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2011] [Revised: 07/18/2012] [Accepted: 07/24/2012] [Indexed: 01/06/2023]
Abstract
BACKGROUND Several studies have shown impaired neurocognitive development in infants born very preterm. Language is one of the areas that may be affected. Early lexical development measurements have revealed possible delays associated with low gestational age, but no studies have analyzed lexical processing using real-time measures in this at-risk population. AIMS To explore the effects of preterm birth on the robustness of phonological representations and lexical processing speed. SUBJECTS AND METHODS Eighteen two-year-old VLBW healthy preterms (≤32weeks of gestation; ≤1500g) and a matched group of at term infants, equivalent in age, gender, SES, linguistic environment and expressive lexicon were compared in a 'looking-while-listening' task, using correctly pronounced and mispronounced known words involving a vowel change. Percentage of target fixation, longest look duration, shift rate and orientation latency measures were used to analyze possible between-group differences in phonological representation and familiar word recognition processes. RESULTS Based on the percentage of fixation time measure both groups succeeded at word recognition and responded similarly to mispronunciations. However, preterms significantly differed from full-terms in processing speed measures, showing longer look duration, lower shift rate and slower orientation latencies to target from distracter. CONCLUSIONS Preterm birth negatively affects lexical processing speed. Birth weight and gestational age are two critical variables in these results. Slower language processing in preterms can compromise the acquisition of more complex lexical and grammatical representations later in development and may underlie poor language outcomes frequently observed in children born very prematurely.
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Affiliation(s)
- M Ramon-Casas
- Department of Basic Psychology, University of Barcelona, Spain
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Bosch L, Rivera del Álamo MM, Andaluz A, Monreal L, Torrente C, García-Arnas F, Fresno L. Effects of ovariohysterectomy on intra-abdominal pressure and abdominal perfusion pressure in cats. Vet Rec 2012; 171:622. [DOI: 10.1136/vr.100791] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- L. Bosch
- Servei d'Emergències i Cures Intensives, Fundació Hospital Clínic Veterinari, Edifici V; Campus Universitari; Universitat Autònoma de Barcelona; Cerdanyola del Vallès Barcelona 08193 Spain
| | - M. M. Rivera del Álamo
- Servei de Reproducció, Fundació Hospital Clínic Veterinari, Edifici V; Campus Universitari; Universitat Autònoma de Barcelona; Cerdanyola del Vallès Barcelona 08193 Spain
| | - A. Andaluz
- Servei de Cirurgia, Fundació Hospital Clínic Veterinari, Edifici V; Campus Universitari; Universitat Autònoma de Barcelona; Cerdanyola del Vallès Barcelona 08193 Spain
| | - L. Monreal
- Servei de Cirurgia, Fundació Hospital Clínic Veterinari, Edifici V; Campus Universitari; Universitat Autònoma de Barcelona; Cerdanyola del Vallès Barcelona 08193 Spain
| | - C. Torrente
- Servei d'Emergències i Cures Intensives, Fundació Hospital Clínic Veterinari, Edifici V; Campus Universitari; Universitat Autònoma de Barcelona; Cerdanyola del Vallès Barcelona 08193 Spain
| | - F. García-Arnas
- Servei de Cirurgia, Fundació Hospital Clínic Veterinari, Edifici V; Campus Universitari; Universitat Autònoma de Barcelona; Cerdanyola del Vallès Barcelona 08193 Spain
| | - L. Fresno
- Servei de Cirurgia, Fundació Hospital Clínic Veterinari, Edifici V; Campus Universitari; Universitat Autònoma de Barcelona; Cerdanyola del Vallès Barcelona 08193 Spain
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Bosch L, Tor M, Reixach J, Estany J. Age-related changes in intramuscular and subcutaneous fat content and fatty acid composition in growing pigs using longitudinal data. Meat Sci 2012; 91:358-63. [DOI: 10.1016/j.meatsci.2012.02.019] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2011] [Revised: 02/13/2012] [Accepted: 02/15/2012] [Indexed: 11/30/2022]
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Henken FE, Oosterhuis K, Öhlschläger P, Bosch L, Hooijberg E, Haanen JBAG, Steenbergen RDM. Preclinical safety evaluation of DNA vaccines encoding modified HPV16 E6 and E7. Vaccine 2012; 30:4259-66. [PMID: 22554465 DOI: 10.1016/j.vaccine.2012.04.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2011] [Revised: 03/31/2012] [Accepted: 04/05/2012] [Indexed: 11/26/2022]
Abstract
Persistent infection with high-risk human papillomaviruses (hrHPV) can result in the formation of anogenital cancers. As hrHPV proteins E6 and E7 are required for cancer initiation and maintenance, they are ideal targets for immunotherapeutic interventions. Previously, we have described the development of DNA vaccines for the induction of HPV16 E6 and E7 specific T cell immunity. These vaccines consist of 'gene-shuffled' (SH) versions of HPV16 E6 and E7 that were fused to Tetanus Toxin Fragment C domain 1 (TTFC) and were named TTFC-E6SH and TTFC-E7SH. Gene-shuffling was performed to avoid the risk of inducing malignant transformation at the vaccination site. Here, we describe the preclinical safety evaluation of these candidate vaccines by analysis of their transforming capacity in vitro using established murine fibroblasts (NIH 3T3 cells) and primary human foreskin keratinocytes (HFKs). We demonstrate that neither ectopic expression of TTFC-E6SH and TTFC-E7SH alone or in combination enabled NIH 3T3 cells to form colonies in soft agar. In contrast, expression of HPV16 E6WT and E7WT alone or in combination resulted in effective transformation. Similarly, retroviral transduction of HFKs from three independent donors with both TTFC-E6SH and TTFC-E7SH alone or in combination did not show any signs of immortalization. In contrast, the combined expression of E6WT and E7WT induced immortalization in HFKs from all donors. Based on these results we consider it justified to proceed to clinical evaluation of DNA vaccines encoding TTFC-E6SH and TTFC-E7SH in patients with HPV16 associated (pre)malignancies.
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Affiliation(s)
- F E Henken
- Department of Pathology, Unit of Molecular Pathology, VU University Medical Center, PO Box 7057, 1007 MB, Amsterdam, The Netherlands
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Emmelot P, Bosch L. The influence of oestrogens on the protein and lipid metabolism of the mouse uterus, studied with acetate-1-C14. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19540731102] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Bosch L, Tor M, Reixach J, Estany J. Estimating intramuscular fat content and fatty acid composition in live and post-mortem samples in pigs. Meat Sci 2009; 82:432-7. [DOI: 10.1016/j.meatsci.2009.02.013] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2008] [Revised: 01/19/2009] [Accepted: 02/18/2009] [Indexed: 11/25/2022]
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Villalba D, Tor M, Vidal O, Bosch L, Reixach J, Amills M, Sànchez A, Estany J. An age-dependent association between a leptin C3469T single nucleotide polymorphism and intramuscular fat content in pigs. Livest Sci 2009. [DOI: 10.1016/j.livsci.2008.06.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Joshi S, Pleij CW, Haenni AL, Chapeville F, Bosch L. Properties of the tobacco mosaic virus intermediate length RNA-2 and its translation. Virology 2008; 127:100-11. [PMID: 18638998 DOI: 10.1016/0042-6822(83)90375-6] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/1982] [Accepted: 01/31/1983] [Indexed: 11/25/2022]
Abstract
The existence of subgenomic RNAs is well established in the case of plant viruses such as tobacco mosaic virus (TMV). However, except for the subgenomic coat protein mRNA, it is not known whether the other subgenomic RNAs have a function in the life cycle of the virus. In search of more information about one of the major subgenomic RNAs-intermediate length RNA-2 or I2 RNA-of TMV, in vitro and in vivo translational studies were performed. The I2 RNA, which codes in vitro for the synthesis of a 30K (K = kilodalton) protein, appears to be uncapped as judged by the need of different in vitro translation conditions for the synthesis of this protein, compared to the conditions required for the synthesis of the 126K and 183K proteins coded by the capped genomic RNA. In vivo a protein migrating in the same position as the 30K protein synthesized in vitro can be detected in infected tobacco leaves. Since this protein occurs transiently early upon infection, whether it is virus-coded or virus-induced, it could have an early function during infection.
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Affiliation(s)
- S Joshi
- Department of Biochemistry, State University of Leiden, Wassenaarseweg 64, 2300 RA Leiden, The Netherlands
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37
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Abstract
G-protein-coupled receptors (GPCR) are a major class of membrane proteins belonging to a continuously growing superfamily. These receptors play a critical role in signal transduction, and are among the most important pharmacological drug targets. The first structural model for the GPCR superfamily was the bacterial protein bacteriorhodopsin with its characteristic seven transmembrane (TM) helical architecture. The visual photoreceptor rhodopsin is a better model for GPCR, and the recent elucidation of the crystal structure of bovine rhodopsin has renewed the interest in this receptor as a template for molecular modeling of other GPCR, particularly for the implications in ligand design and drug discovery. In this work different specific structural elements of rhodopsin are reviewed and the role of conserved motifs, like those associated with receptor function, is analyzed. The specific characteristics of the membrane-embedded ligand-binding domain are described. Other aspects, like receptor dimerization or the constitutive activity mechanism, are also outlined. The importance of acquiring knowledge of the active conformation of the receptor by means of both modeling and experimental techniques is also highlighted. In this regard, the model of the activated form of rhodopsin is currently under investigation, and it may provide useful information for pharmaceutical design. Rhodopsin will continue to be a widely used model for GPCR but rhodopsin-based approaches have to be complemented by other theoretical and experimental approaches -while waiting for the crystal structure of other members of the superfamily- if these want to be successfully used for drug discovery.
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Affiliation(s)
- L Bosch
- Centre de Biotecnologia Molecular (CEBIM), Departament d'Enginyeria Química, Universitat Politècnica de Catalunya, 08222 Terrassa, Catalonia, Spain.
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38
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Del Valle LJ, Ramon E, Bosch L, Manyosa J, Garriga P. Specific isomerization of rhodopsin-bound 11-cis-retinal to all-trans-retinal under thermal denaturation. Cell Mol Life Sci 2003; 60:2532-7. [PMID: 14625696 DOI: 10.1007/s00018-003-3113-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The natural ligand of the retinal photoreceptor rhodopsin, 11-cis-retinal, is isomerized to its all-trans configuration as a consequence of light absorption in the first step of the visual phototransduction process. Here we show, by means of difference spectroscopy and high-performance liquid chromatography analysis, that thermal denaturation of rhodopsin induces the same type of isomerization. This effect is likely due to thermally induced conformational rearrangements of amino acid residues in the retinal-binding pocket--possibly implying helical movements--and highlights the tight coupling between 11-cis-retinal and opsin. This effect could have implications in the instability and functional changes seen for certain mutations in rhodopsin associated with retinal disease, and in the stability of the different conformers induced by mutations in other G protein-coupled receptors.
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Affiliation(s)
- L J Del Valle
- Centre de Biotecnologia Molecular, Departament d'Enginyeria Química, Universitat Politècnica de Catalunya, Colom 1, 08222 Terrassa, Catalonia, Spain
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39
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Eecen HG, Van Dierendonck JH, Pleij CWA, Mandel M, Bosch L. Hydrodynamic properties of RNA: effect of multivalent cations on the sedimentation behavior of turnip yellow mosaic virus RNA. Biochemistry 2002. [DOI: 10.1021/bi00335a032] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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40
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Abstract
This study examined the capacity of 4-month-old infants to identify their maternal language when phonologically similar languages are contrasted, using a visual orientation procedure with a reaction time measure. Infants from monolingual and bilingual environments were compared in order to analyze whether differences in linguistic background affect this behavioral response. In experiment 1 the validity of the procedure was assessed with a pair of phonologically dissimilar languages (Catalan or Spanish vs. English). In experiment 2, 20 infants from monolingual environments tested in a similar language contrast (Catalan vs. Spanish) indicated that discrimination is already possible at that age. Results from experiment 3, using low-pass filtered utterances, suggested that infants can rely on information about supra-segmental features to make this distinction. For the infants growing up in bilingual environments no preference for either of the familiar languages was found. Moreover, when their maternal language was contrasted either with English or with Italian, in both cases the bilingual group showed a similar pattern, consisting of significantly longer latencies for the familiar language. Possible interpretations of this unexpected pattern of results are discussed and its implications for bilingual language acquisition are considered.
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Affiliation(s)
- L Bosch
- Departament Psicologia Bàsica, Universitat de Barcelona, Spain.
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41
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Abstract
It is well attested that we perceive speech through the filter of our native language: a classic example is that of Japanese listeners who cannot discriminate between the American /l/ and /r/ and identify both as their own /r/ phoneme (Goto. H., 1971. Neuropsychologia 9, 317-323.). Studies in the laboratory have shown, however, that perception of non-native speech sounds can be learned through training (Lively, S.E., Pisoni, D.B., Yamada, R.A., Tohkura, Y.I., Yamada, T., 1994. Journal of the Acoustical Society of America 96 (4), 2076-2087). This is consistent with neurophysiological evidence showing considerable experience-dependent plasticity in the brain at the first levels of sensory processing (Edeline, J.-M., Weinberger, N.M., 1993. Behavioral Neuroscience 107, 82-103; Merzenich, M.M., Sameshima, K., 1993. Current Opinion in Neurobiology 3, 187-196; Weinberger, N.M., 1993. Current Opinion in Neurobiology 3, 577-579; Kraus, N., McGee, T., Carrel, T.D., King, C., Tremblay, K., Nicol, T., 1995. Journal of Cognitive Neuroscience 7 (1), 25-32). Outside of the laboratory, however, the situation seems to differ: we here report is study involving Spanish-Catalan bilingual subjects who have had the best opportunities to learn a new contrast but did not do it. Our study demonstrates a striking lack of behavioral plasticity: early and extensive exposure to a second language is not sufficient to attain the ultimate phonological competence of native speakers.
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Affiliation(s)
- C Pallier
- Departament de Psicologia Bàsica, Universitat de Barcelona, Spain.
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42
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Bosch L, Vijgenboom E, Zeef LA. A revised bacterial polypeptide chain elongation cycle with a stepwise increase in restriction of unwanted ternary complexes by the ribosome. Biochemistry 1996; 35:12647-51. [PMID: 8841107 DOI: 10.1021/bi952925a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- L Bosch
- Department of Biochemistry, Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, The Netherlands
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43
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Talens A, Boon K, Kraal B, Bosch L. Translational activities of EF-Tu [G222D] which cannot be reconciled with the classical scheme of the polypeptide chain elongation cycle. Biochem Biophys Res Commun 1996; 225:961-7. [PMID: 8780718 DOI: 10.1006/bbrc.1996.1279] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
We have developed a cell-free system of E. coli that enables us to study the in vitro translation of natural mRNA mediated by wild-type or mutant EF-Tu. Various mutant EF-Tu species have been analyzed, one of which, EF-Tu [G222D], appeared to be virtually unable to mediate the translation of natural mRNA. Since this mutant factor is able to participate in translation in vivo by suppressing nonsense and frameshift mutations in cooperation with EF-Tu [A375T], a revision of the generally accepted scheme of the elongation cycle has been proposed (Bosch, L., Vijgenboom, E., & Zeef, L.A.H., 1996, Biochemistry 36).
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Affiliation(s)
- A Talens
- Department of Biochemistry, Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, The Netherlands
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44
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Zeef LA, Mesters JR, Kraal B, Bosch L. A growth-defective kirromycin-resistant EF-Tu Escherichia coli mutant and a spontaneously evolved suppression of the defect. Gene 1995; 165:39-43. [PMID: 7489913 DOI: 10.1016/0378-1119(95)00487-q] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
This study has investigated the cause of a growth-defect phenotype of a mutation in the elongation factor EF-Tu from Escherichia coli. An M13-based genetic retrieval system reported by Zeef and Bosch [Mol. Gen. Genet. 238 (1993) 252-260] was used to segregate and identify an extremely growth-defective kirromycin-resistant (KrR) tufA mutation, encoding Gln124-->Lys (Q124K), from a KrR parent strain. This original strain also contained mutations, 124com1 and 124com2, that appear to have evolved to suppress the Q124K tufA mutation. In this communication we present these M13-based genetic experiments together with additional genetic and protein characterization experiments to clarify the basis of this complementation. The data indicate that the serious growth defect of Q124K originates from a defective GTP/GDP interaction. The GTP/GDP binding and GTP hydrolysis characteristics of ET-Tu Q124K were different from wild-type EF-Tu and especially of another KrR EF-Tu mutant A375T. In line with this, 124com1 specifically complemented EF-Tu Q124K, whereas the growth defects of strains containing EF-Tu mutated at aa 375 were aggravated. We also show that strains containing the segregated tufA Q124K mutation formed filaments.
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Affiliation(s)
- L A Zeef
- Department of Biochemistry, Leiden Institute of Chemistry, Leiden University, The Netherlands
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45
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Kraal B, Zeef LA, Mesters JR, Boon K, Vorstenbosch EL, Bosch L, Anborgh PH, Parmeggiani A, Hilgenfeld R. Antibiotic resistance mechanisms of mutant EF-Tu species in Escherichia coli. Biochem Cell Biol 1995; 73:1167-77. [PMID: 8722034 DOI: 10.1139/o95-126] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Analysis of antibiotic-resistant EF-Tu mutants has revealed a connection between resistance and structural elements that participate in the GTPase switching mechanism. Both random and site-directed mutagenesis methods have yielded sets of purified mutant EF-Tu resistant to kirromycin (kirT) or pulvomycin (pulT). All kirT mutations cluster in the interface of domain 1 and 3 of EF-Tu in its GTP-bound conformation, not in that of EF-Tu.GDP. Other evidence also suggests that kirromycin binds to the interface of wild-type EF-Tu, thereby jamming the GTPase switch. Various functional studies reveal two subsequent resistance mechanisms. The first hinders kirromycin binding to EF-Tu.GTP and the second occurs after GTP hydrolysis by rejection of bound kirromycin. All pulT mutations cluster in the three-domain junction interface of EF-Tu. GTP (which is an open hole in EF-Tu.GDP) and destabilize a salt-bridge network. Pulvomycin may bind nearby and overlap with tRNA binding. Mutations show that a D99-R230 salt bridge is not essential for the transduction of the GTPase switch signal from domain 1. In vivo and in vitro studies reveal that pulvomycin sensitivity is dominant over resistance. This demands a revision of the current view of the mechanism of pulvomycin inhibition of protein synthesis and may support a translation model with two EF-Tus on the ribosome. Several mutant EF-Tu species display altered behaviour towards aminoacyl-tRNA with interesting effects on translational accuracy. KirT EF-Tu(A375T) is able to reverse the streptomycin-dependent phenotype of a ribosomal protein S12 mutant strain to streptomycin sensitivity.
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Affiliation(s)
- B Kraal
- Leiden Institute of Chemistry, Department of Biochemistry, Leiden University, The Netherlands
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46
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van Wezel GP, Takano E, Vijgenboom E, Bosch L, Bibb MJ. The tuf3 gene of Streptomyces coelicolor A3(2) encodes an inessential elongation factor Tu that is apparently subject to positive stringent control. Microbiology (Reading) 1995; 141 ( Pt 10):2519-28. [PMID: 7582011 DOI: 10.1099/13500872-141-10-2519] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
In Streptomyces coelicolor A3(2), two genes, tuf1 and tuf3, encode the apparent polypeptide chain elongation factors EF-Tu1 and EF-Tu3, respectively. While tuf1 appears to code for the major EF-Tu, the function of tuf3 is unknown. To assess the role of EF-Tu3, tuf3 was subjected to mutational and transcriptional analyses. Replacement of the 5'-half of tuf3 by an antibiotic resistance cassette had no detectable effect on phenotype, indicating that tuf3 is not essential for growth or differentiation. The transcription start site of tuf3 was located approximately 195 nt upstream of the translation start site. The sequence of the tuf3 promoter (Ptuf3) resembles the consensus for the major class of eubacterial promoters, and Ptuf3 was recognized preferentially by an RNA polymerase fraction enriched in sigma hrdB, the principal sigma factor of S. coelicolor. Nuclease S1 mapping failed to reveal tuf3 transcripts during growth of S. coelicolor in liquid culture, consistent with the apparent absence of EF-Tu3 in total protein extracts of the same strain. However, tuf3 transcription was observed in cultures of S. coelicolor M145 shortly after nutritional shiftdown (which resulted in the disappearance of tuf1 transcripts) and after addition of serine hydroxamate, both of which induce the stringent response. Transcription of tuf3 was also observed in transition-phase and stationary-phase cultures of S. coelicolor J1681, a strain deleted for bldA (which specifies a tRNA(Leu) for the rare leucine codon UUA). In all of these examples, transcription of tuf3 followed the production of ppGpp, consistent with the hypothesis that tuf3 is subject to positive stringent control.
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Affiliation(s)
- G P van Wezel
- Department of Genetics, John Innes Centre, Colney, Norwich, UK
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47
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Boon K, Krab I, Parmeggiani A, Bosch L, Kraal B. Substitution of Arg230 and Arg233 in Escherichia coli elongation factor Tu strongly enhances its pulvomycin resistance. Eur J Biochem 1995; 227:816-22. [PMID: 7867642 DOI: 10.1111/j.1432-1033.1995.tb20206.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Pulvomycin is a strong inhibitor of protein synthesis, known to prevent the binding of aminoacyl-tRNA to elongation factor Tu.GTP (EF-Tu.GTP). Recently, three pulvomycin-resistant mutant strains have been isolated by targeted mutagenesis of the tufA gene resulting in EF-Tu substitutions at positions 230, 333 or 334. In order to analyze the functions of arginine residues located in domain II, with respect to pulvomycin resistance and the interaction with aminoacyl-tRNA, we have investigated the effect of the substitutions of the highly conserved residues Arg230 and Arg233 by site-directed mutagenesis. We have purified two mutants species, [R233S]EF-TuHis and [R230V, R233F]EF-TuHis, both with a C-terminal histidine extension to enable purification by Ni2+ affinity chromatography. In this study, we describe the in vitro characterization of these mutant proteins. The results show that the concomitant substitution of residues at positions 230 and 233, dramatically increases the pulvomycin resistance. Preliminary evidence is presented that protein synthesis is inhibited by an EF-Tu.GDP.pulvomycin complex rather than by EF-Tu.GTP.pulvomycin. Moreover, the mutant [R230V, R233F]EF-TuHis shows a stronger protection of the ester bond of aminoacyl-tRNA than wild-type EF-Tu.
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Affiliation(s)
- K Boon
- Leiden Institute of Chemistry, Gorleaus Laboratories, Department of Biochemistry, The Netherlands
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48
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van Wezel GP, Buttner MJ, Vijgenboom E, Bosch L, Hopwood DA, Kieser HM. Mapping of genes involved in macromolecular synthesis on the chromosome of Streptomyces coelicolor A3(2). J Bacteriol 1995; 177:473-6. [PMID: 7814340 PMCID: PMC176614 DOI: 10.1128/jb.177.2.473-476.1995] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
The genes for the beta, beta', and seven sigma factor subunits of RNA polymerase, for elongation factors EF-Tu1 and EF-Tu3, and for six rRNA operons were mapped on the combined genetic and physical map of the Streptomyces coelicolor chromosome. Like the previously mapped tRNA genes, the RNA polymerase and rRNA genes map to scattered positions. The lack of rRNA operons in the immediate vicinity of the origin of replication (oriC) and the absence of tRNA genes in any of the rRNA operons are novel features of the Streptomyces chromosome.
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Affiliation(s)
- G P van Wezel
- Department of Genetics, John Innes Centre, Norwich Research Park, United Kingdom
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49
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van Wezel GP, Krab IM, Douthwaite S, Bibb MJ, Vijgenboom E, Bosch L. Transcription analysis of the Streptomyces coelicolor A3(2) rrnA operon. Microbiology (Reading) 1994; 140 ( Pt 12):3357-65. [PMID: 7533593 DOI: 10.1099/13500872-140-12-3357] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Transcription start sites and processing sites of the Streptomyces coelicolor A3(2) rrnA operon have been investigated by a combination of in vivo and in vitro transcription analyses. The data from these approaches are consistent with the existence of four in vivo transcription sites, corresponding to the promoters P1-P4. The transcription start sites are located at -597, -416, -334 and -254 relative to the start of the 16S rRNA gene. Two putative processing sites were identified, one of which is similar to a sequence reported earlier in S. coelicolor and other eubacteria. The P1 promoter is likely to be recognized by the RNA polymerase holoenzyme containing sigma hrdB, the principal sigma factor in S. coelicolor. P2 also shares homology with the consensus for vegetative promoters, but has a sequence overlapping the consensus -35 region that is also present in the -35 regions of P3 and P4. The -35 sequence common to P2, P3 and P4 is not similar to any other known consensus promoter sequence. In fast-growing mycelium, P2 appears to be the most frequently used promoter. Transcription from all of the rrnA promoters decreased during the transition from exponential to stationary phase, although transcription from P1 and P2 ceased several hours before that from P3 and P4.
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MESH Headings
- Base Sequence
- Chromosome Mapping
- DNA Primers/genetics
- DNA, Bacterial/genetics
- Genes, Bacterial
- Molecular Sequence Data
- Operon
- Promoter Regions, Genetic
- RNA Processing, Post-Transcriptional
- RNA, Bacterial/genetics
- RNA, Bacterial/metabolism
- RNA, Ribosomal, 16S/genetics
- RNA, Ribosomal, 16S/metabolism
- Sequence Homology, Nucleic Acid
- Single-Strand Specific DNA and RNA Endonucleases
- Streptomyces/genetics
- Streptomyces/growth & development
- Streptomyces/metabolism
- Transcription, Genetic
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Affiliation(s)
- G P van Wezel
- Leiden University, Department of Biochemistry, The Netherlands
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50
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Abstract
This paper reports the generation of Escherichia coli mutants resistant to pulvomycin. Together with targeted mutagenesis of the tufA gene, conditions were found to overcome membrane impermeability, thereby allowing the selection of three mutants harbouring elongation factor (EF)-Tu Arg230-->Cys, Arg333-->Cys or Thr334-->Ala which confer pulvomycin resistance. These mutations are clustered in the three-domain junction interface of the crystal structure of the GTP form of Thermus thermophilus EF-Tu. This result shares similarities with kirromycin resistance; kirromycin-resistant mutations cluster in the domain 1-3 interface. Since both interface regions are involved in the EF-Tu switch mechanism, we propose that pulvomycin and kirromycin both act by specifically disturbing the allosteric changes required for the switch from EF-Tu-GTP to EF-Tu-GDP. The three-domain junction changes dramatically in the switch to EF-Tu.GDP; in EF-Tu.GDP this region forms an open hole. Structural analysis of the mutation positions in EF-Tu.GTP indicated that the two most highly resistant mutants, R230C and R333C, are part of an electrostatic network involving numerous residues. All three mutations appear to destabilize the EF-Tu.GTP conformation. Genetic and protein characterizations show that sensitivity to pulvomycin is dominant over resistance. This appears to contradict the currently accepted model of protein synthesis inhibition by pulvomycin.
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MESH Headings
- Aminoglycosides
- Anti-Bacterial Agents/pharmacology
- Binding Sites/genetics
- Cell Membrane Permeability
- Dose-Response Relationship, Drug
- Drug Resistance, Microbial
- Escherichia coli/drug effects
- Escherichia coli/genetics
- Genes, Bacterial/genetics
- Guanosine Triphosphate/chemistry
- Models, Biological
- Models, Molecular
- Molecular Conformation
- Mutagenesis, Site-Directed
- Peptide Biosynthesis
- Peptide Elongation Factor Tu/drug effects
- Peptides
- Protein Biosynthesis/drug effects
- Pyridones/pharmacology
- RNA, Transfer, Amino Acyl/metabolism
- RNA, Transfer, Phe/metabolism
- Selection, Genetic
- Structure-Activity Relationship
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Affiliation(s)
- L A Zeef
- Department of Biochemistry, Leiden University, The Netherlands
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