Search results for "Diol"

showing 10 items of 11756 documents

Monitoring the reproductive activity in captive bred female ball pythons (P. regius) by ultrasound evaluation and noninvasive analysis of faecal repr…

2018

The royal python (Python regius) is commonly bred in captivity. To have a successful breeding season, accurate monitoring of the reproductive activity is necessary. The use of non-invasive monitoring methods in exotics is important in order to minimize stress. For this purpose ultrasound has been anecdotally used to monitor royal python reproductive activity. However, there is limited information regarding the reproductive cycle of this species. The aim of the present study is to monitor the female reproductive cycle of the royal python using ultrasonography and gonadal steroid metabolite measurements in the faeces. The reproductive activity of one hundred twenty-nine adult female P. regius…

0106 biological sciencesRoyal python (Python regius) female reproductive activity captive bred ultrasound evaluation faecal reproductive hormone metabolites progesterone 17β-estradiol noninvasive analysislcsh:MedicineCaptivityPhysiologyBiochemistry01 natural sciencesDiagnostic Radiology0403 veterinary scienceFecesUltrasound ImagingFollicular phaseMedicine and Health SciencesMetabolitesSeasonal breederLipid Hormonesfaecal reproductive hormone metabolitesPythonslcsh:ScienceUltrasonographyMultidisciplinaryEstradiolOrganic CompoundsReproductionRadiology and ImagingEukaryotaSnakes04 agricultural and veterinary sciencesSlugsSquamatesChemistrycaptive bredVertebratesPhysical SciencesRoyal python (Python regius)FemaleSteroidsFolliculogenesisResearch ArticleImaging Techniques040301 veterinary sciencesprogesteroneBiologyResearch and Analysis Methods010603 evolutionary biologyDiagnostic MedicineSex HormonesAnimalsFecesOrganic Chemistrylcsh:ROrganismsChemical Compoundsultrasound evaluation17β-estradiolBiology and Life SciencesReptilesEchogenicityMolluscsbiology.organism_classificationInvertebratesHormonesMetabolismfemale reproductive activityGastropodsnoninvasive analysisAmniotesRoyal pythonlcsh:QHormonePLOS ONE
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Lung function assessment in the Pacific walrus (Odobenus rosmarus divergens) while resting on land and submerged in water

2020

In the present study, we examined lung function in healthy resting adult (born in 2003) Pacific walruses (Odobenus rosmarus divergens) by measuring respiratory flow ([Formula: see text]) using a custom-made pneumotachometer. Three female walruses (670-1025 kg) voluntarily participated in spirometry trials while spontaneously breathing on land (sitting and lying down in sternal recumbency) and floating in water. While sitting, two walruses performed active respiratory efforts, and one animal participated in lung compliance measurements. For spontaneous breaths, [Formula: see text] was lower when walruses were lying down (e.g. expiration: 7.1±1.2 l s-1) as compared with in water (9.9±1.4 l s-…

0106 biological sciencesSpirometrymedicine.medical_specialtyPhysiology030310 physiologyRespiratory physiologyAquatic SciencePulmonary compliance010603 evolutionary biology01 natural sciencesPulmonary function testing03 medical and health sciencesInternal medicineMedicineLung volumesRespiratory systemMolecular BiologyEcology Evolution Behavior and SystematicsTidal volume0303 health sciencesmedicine.diagnostic_testbusiness.industryInsect ScienceBreathingCardiologyAnimal Science and ZoologybusinessJournal of Experimental Biology
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Physiological and Structural Changes in Tobacco Leaves Treated with Cryptogein, a Proteinaceous Elicitor fromPhytophthora cryptogea

1991

Cryptogein was applied on the petiole section of excised tobacco leaves. It elicited necroses that can be correlated with histological alterations, such as rapid chloroplast breakdown and a collapse of cells leading to disorganization of the parenchyma tissue. In addition, it induced ethylene production and accumulation of capsidiol. In order to detect an early response, we analyzed the kinetics of chlorophyll fluorescence induction (...)

0106 biological sciences[SDV]Life Sciences [q-bio]Nicotiana tabacumPlant Science01 natural sciencesPetiole (botany)MicrobiologyCapsidiol03 medical and health scienceschemistry.chemical_compoundParenchymaChlorophyll fluorescenceComputingMilieux_MISCELLANEOUS030304 developmental biology0303 health sciencesbiologyPhytophthora cryptogeafood and beveragesbiology.organism_classificationElicitor[SDV] Life Sciences [q-bio]ChloroplastchemistryBiophysicsAgronomy and Crop Science010606 plant biology & botanyPhytopathology
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Whistling is metabolically cheap for communicating bottlenose dolphins (Tursiops truncatus)

2020

Toothed whales depend on sound for communication and foraging, making them potentially vulnerable to acoustic masking from increasing anthropogenic noise. Masking effects may be ameliorated by higher amplitudes or rates of calling, but such acoustic compensation mechanisms may incur energetic costs if sound production is expensive. The costs of whistling in bottlenose dolphins (Tursiops truncatus) have been reported to be much higher (20-50% of resting metabolic rate, RMR) than theoretical predictions (0.5-1% of RMR). Here we address this dichotomy by measuring the change in the resting O2 consumption rate (V̇O2), a proxy for RMR, in three post-absorptive bottlenose dolphins during whistlin…

0106 biological sciencesmedicine.medical_specialtyPhysiology030310 physiologyVocal modificationsForagingAquatic ScienceSound productionBiologyAudiology010603 evolutionary biology01 natural sciencesAcoustic communication03 medical and health sciencesmedicineO2 consumptionMolecular BiologyEcology Evolution Behavior and SystematicsUnderwater noise0303 health sciencesRespiratory physiologyMetabolic costInsect ScienceSound productionBasal metabolic rateToothed whalesHydrophone arrayAnimal Science and ZoologyUnderwater noise
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Lateralization of complex behaviours in wild greater flamingos.

2018

8 pages; International audience; Lateralization refers to the preferential use of one side of the body to perform certain tasks, often as a consequence of the specialization of cerebral hemispheres. Individuals may benefit from lateralization if it allows them to perform complex tasks simultaneously. Studies on laterality further suggest that sex and age can influence the extent of lateralization. However, most studies on lateralization have been performed on captive individuals, exposed to simplified environments and expressing limited behavioural repertoire. Here, we evaluated behavioural lateralization in the greater flamingo, Phoenicopterus roseus, through observations of wild individua…

0106 biological sciencesmedicine.medical_specialtyPopulation levelmedia_common.quotation_subject[SDE.MCG]Environmental Sciences/Global ChangesPhoenicopterus roseusBiologyAudiology010603 evolutionary biology01 natural sciencesLateralization of brain functionCourtshipforagingmedicine0501 psychology and cognitive sciencesresting050102 behavioral science & comparative psychologycourtship displayEcology Evolution Behavior and SystematicsComputingMilieux_MISCELLANEOUSBehavioural repertoiremedia_commonCourtship display05 social sciencesMotor controlbiology.organism_classification[SDE.ES]Environmental Sciences/Environmental and SocietystampinglateralityLateralityAnimal Science and ZoologyGreater flamingo[SDE.BE]Environmental Sciences/Biodiversity and Ecology[SDV.EE.IEO]Life Sciences [q-bio]/Ecology environment/Symbiosis
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Selección del tratamiento anticoagulante óptimo para el paciente con fibrilación auricular y diabetes o enfermedad renal crónica: papel del rivaroxab…

2020

Resumen Tanto la diabetes mellitus como la enfermedad renal cronica aumentan el riesgo de fibrilacion auricular. A su vez, la concomitancia de diabetes mellitus y enfermedad renal cronica incrementa de manera sinergica el riesgo tromboembolico asociado con la fibrilacion auricular, lo que pone al paciente en esta situacion en especial riesgo y obliga a no fijar nuestra actuacion solo en la reduccion del riesgo embolico, sino a buscar una proteccion general. Aunque todos los anticoagulantes orales reducen eficazmente el riesgo de ictus en el paciente diabetico con fibrilacion auricular, hay datos que indican que el rivaroxaban podria disminuir ademas la mortalidad cardiovascular en esta pobl…

03 medical and health sciences0302 clinical medicine030212 general & internal medicine030204 cardiovascular system & hematologyCardiology and Cardiovascular MedicineRevista Española de Cardiología Suplementos
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Paciente «estable» con insuficiencia cardiaca: el momento oportuno

2019

Resumen Los datos del ensayo clinico PARADIGM-HF y otros estudios relevantes en insuficiencia cardiaca con fraccion de eyeccion reducida (IC-FEr) demuestran que los pacientes que etiquetamos de «estables» (la mayoria en clase funcional II de la NYHA y sin ingresos recientes por insuficiencia cardiaca [IC]) en realidad presentan un pronostico clinico muy desfavorable, ya que tienen una gran incidencia de ingresos por IC y/o mortalidad cardiovascular (un 25% en los siguientes 3 anos). Ademas, la mayoria de los pacientes con IC-FEr que sufren muerte subita no presentan un gran deterioro de su capacidad funcional. Por lo tanto, la «falsa sensacion de estabilidad clinica» no implica buen pronost…

03 medical and health sciences0302 clinical medicine030212 general & internal medicine030204 cardiovascular system & hematologyCardiology and Cardiovascular MedicineRevista Española de Cardiología Suplementos
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Ecografía intestinal y abdomen agudo: más allá de la apendicitis aguda

2021

Resumen El abdomen agudo es un motivo de consulta habitual en los servicios de urgencias. Sus causas son multiples, y entre ellas se encuentran diversas enfermedades del tracto gastrointestinal. Si bien la tomografia computarizada es la tecnica mas aceptada, con frecuencia se lleva a cabo una ecografia abdominal inicialmente, mediante la cual es posible establecer la sospecha de patologia intestinal. Este articulo describe las caracteristicas ecograficas de diversos trastornos intestinales que cursan con abdomen agudo, como la diverticulitis aguda, la obstruccion intestinal, la perforacion gastrointestinal, la isquemia intestinal, la necrosis aguda de la grasa intraabdominal y una miscelane…

03 medical and health sciences0302 clinical medicine030220 oncology & carcinogenesisRadiology Nuclear Medicine and imaging030218 nuclear medicine & medical imagingRadiología
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Paraganglioma carotídeo maligno. A propósito de un caso

2019

Resumen Los tumores del cuerpo carotideo son neoplasias poco frecuentes, de lento crecimiento, muy destructivos y vascularizados, que tienen un origen neuroectodermico. Los tumores malignos representan el 5-13% de los casos y presentan un comportamiento agresivo local con infiltracion de los ganglios linfaticos adyacentes o metastasis a distancia. Presentamos el caso de un varon de 60 anos al que en el estudio por dolor y parestesias en miembro superior se le realiza una resonancia magnetica donde se visualiza una gran tumoracion en el espacio carotideo izquierdo, la cual se biopsio obteniendo el diagnostico histologico de paraganglioma. Al realizar el estudio de extension se identifico la …

03 medical and health sciences0302 clinical medicine030220 oncology & carcinogenesisRadiology Nuclear Medicine and imaging030223 otorhinolaryngologyRadiología
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Bénéfices cardiovasculaires et rénaux des inhibiteurs de SGLT2 : mécanismes de la protection

2019

Resume Les inhibiteurs de SGLT2 ont montre, dans plusieurs etudes prospectives, leur benefice cardiovasculaire et renal avec, plus particulierement, une diminution rapide et tres significative des hospitalisations pour insuffisance cardiaque et des evenements renaux severes : doublement de la creatinine ou recours a l’epuration extra-renale. Le lien fort entre la physiopathologie de l’insuffisance cardiaque et renale explique l’analyse commune des hypotheses de protection de cette classe medicamenteuse. Les mecanismes precis rendant compte de l’amelioration de la fonction myocardique et renale sous inhibiteurs de SGLT2 ne sont pas encore eclaircis, mais plusieurs hypotheses peuvent etre ava…

03 medical and health sciences0302 clinical medicineNutrition and DieteticsEndocrinology Diabetes and MetabolismInternal Medicine030209 endocrinology & metabolism030204 cardiovascular system & hematologyCardiology and Cardiovascular MedicineMédecine des Maladies Métaboliques
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