Results 101 to 110 of about 170,634 (249)

Radioprotección en medicina nuclear

, 2017
Es habitual comenzar un libro con la historia de la temática que lo involucra. Ya hay numerosos textos muy completos y autorizados cuentan la historia de la radioprotección. Las circunstancias que rodearon los primeros descubrimientos de esa rara forma de energía que motivó el nombre de “X” para los primeros rayos detectados; las consecuencias nocivas ...
Sanz, Vanesa, Fernández, Luz, Illanes, Luis   +2 more
openaire   +3 more sources

Immunostaining of P450c17, Aromatase and Oestrogen Receptor Alpha in Germ and Somatic Cells During Gonadal Development in Greater Rhea

Anatomia, Histologia, Embryologia, Volume 55, Issue 2, March 2026.
ABSTRACT The greater rhea (Rhea americana), the largest bird species in South America, has significant economic value due to its meat, eggs, leather, feathers and oil. However, its lack of external sexual dimorphism poses challenges for reproductive management and breeding programmes.
Marilú Cristofoli, Danielle Cristina Calado de Brito, Mayla Magalhães de Oliveira Alcobaça, Flavia Maria Pia Montenegro Donoso, Fabiana Morse Gosson Jorge, Marco Aurélio Schiavo Novaes, Moacir Franco Oliveira, Antônio Chaves de Assis Neto   +7 more
wiley   +1 more source

Radiofármacos en medicina nuclear

, 2015
Un radiofármaco es un compuesto radiactivo utilizado para el diagnóstico y tratamiento de enfermedades. En Argentina, el 95% de los radiofármacos utilizados en medicina nuclear son de diagnóstico mientras que aproximadamente un 5% de usan para terapia.
Chain, Cecilia Yamil, Illanes, Luis
openaire   +3 more sources

The Impact of Next‐Generation Sequencing on Interobserver Agreement and Diagnostic Accuracy of Deep Penetrating Melanocytic Neoplasms

Journal of Cutaneous Pathology, Volume 53, Issue 3, Page 293-301, March 2026.
ABSTRACT Background Next‐generation sequencing (NGS) is becoming more commonly used for diagnosis in dermatopathology. It's critical to appraise its efficacy and limitations. Distinguishing benign deep penetrating nevi (DPN) from deep penetrating like‐melanoma (DPN‐M) is a challenging diagnostic scenario even for experienced dermatopathologists ...
Julia Edwin Jeyakumar, Afua Konadu Addo, Haya Mary Beydoun, Shantel Olivares, Armita Bahrami, Thiagarajah Balamurugan, Raymond L. Barnhill, Willeke A. M. Blokx, Klaus J. Busam, Lorenzo Cerroni, Martin Cook, Arnaud de La Fouchardière, Lyn M. Duncan, David E. Elder, Peter Ferguson, Gerardo Ferrara, Iva Johansson, Jennifer S. Ko, Ji Eun Kwon, Gilles Landman, Cecilia Lezcano, Lori Lowe, Daniela Massi, Jane Messina, Daniela Mihic‐Probst, Douglas C. Parker, Margaret Redpath, Michael R. Sargen, Richard A. Scolyer, Christopher R. Shea, Michael Tetzlaff, Carlos Torres‐Cabala, Victor Tron, Xiaowei Xu, Iwei Yeh, Sook Jung Yun, Artur Zembowicz, Pedram Gerami   +37 more
wiley   +1 more source

The tasiR‐ARF pathway in plants: origin, functions, and interplay of miR‐390, tasiRNAs and ARF3

Plant Biology, Volume 28, Issue 2, Page 328-344, March 2026.
Trans‐acting small interfering RNAs that silence a subset of Auxin Response Factors are crucial for plant growth, developmental timing, proper organ patterning, and coping with stress. Abstract Trans‐acting small interfering RNA (tasiRNAs) are a special type of endogenous small RNAs (sRNAs) found only in plants.
B. A. López‐Ruiz, V. T. Juárez González, R. F. Jiménez‐Ortega, J. L. Reyes, T. D. Dinkova   +4 more
wiley   +1 more source

Trazabilidad de las mediciones realizadas con activímetros en medicina nuclear

Nucleus, 2008
En medicina nuclear, las dosis del radiofármaco administradas se expresan mediante la actividad del radionucleido en el preparado. La medición de esa actividad se realiza en el activímetro y resulta primordial para garantizar la comparabilidad nacional e
Pilar Oropesa Verdecia, Rolando A. Serra Águila, Yecenia Moreno León   +2 more
doaj  

Revising the ABIDE MCI to dementia prediction model for automated cerebrospinal fluid assays

Alzheimer's &Dementia, Volume 22, Issue 2, February 2026.
Abstract INTRODUCTION Automated cerebrospinal fluid (CSF) biomarker assays have largely replaced manual immunoassays for measuring amyloid pathology in CSF. We refitted and validated the ABIDE model, predicting progression from mild cognitive impairment (MCI) to dementia, with CSF measurements from the automated Elecsys platform.
Pieter J. van der Veere, Argonde C. van Harten, Ingrid S. van Maurik, Charlotte E. Teunissen, Frederik Barkhof, Stephanie J. B. Vos, Lutz Froelich, Johannes Kornhuber, Jens Wiltfang, Wolfgang Maier, Oliver Peters, Eckart Rüther, Giovanni B. Frisoni, Luiza Spiru, Yvonne Freund‐Levi, Åsa K. Wallin, Harald Hampel, Magda Tsolaki, Iwona Kłoszewska, Patrizia Mecocci, Bruno Vellas, Simon Lovestone, Samantha Galluzzi, Sanna‐Kaisa Herukka, Isabel Santana, I. Baldeiras, Alexandre de Mendonca, Dina Silva, Gael Chetelat, Géraldine Poisnel, Pieter Jelle Visser, Sterling C. Johnson, Erik Stormrud, Oskar Hansson, Sebastian Palmqvist, Gerard Piñol‐Ripoll, for the Alzheimer's Disease Neuroimaging Initiative, Johannes Berkhof, Wiesje M. van der Flier   +38 more
wiley   +1 more source

Nuclear Medicine in the Covid-19 pandemic. [PDF]

Rev Esp Med Nucl Imagen Mol (Engl Ed), 2020
Conesa JC.
europepmc   +1 more source

Bioactive Phenolic Compounds in Extra Virgin Olive Oil: Implications for Cardiovascular Health

Food Science &Nutrition, Volume 14, Issue 2, February 2026.
Extra virgin olive oil (EVOO) is rich in bioactive polyphenols that exert antioxidant, anti‐inflammatory, and anti‐atherogenic effects. These compounds improve endothelial function, modulate lipid metabolism, and reduce platelet aggregation, contributing to cardiovascular protection. Regular consumption of phenolic‐rich EVOO, as part of a Mediterranean
Cristina Vázquez‐Jiménez, Mª. Dolores Rodríguez‐Pérez, Laura Ortega‐Hombrados, Ana María Sánchez‐Tévar, José Pedro de la Cruz‐Cortés, José A. Gonzalez‐Correa   +5 more
wiley   +1 more source

Ginsenoside Rg1 as a Multifunctional Therapeutic Agent: Pharmacological Properties, Molecular Mechanisms and Clinical Perspectives in Complementary Medicine

Food Science &Nutrition, Volume 14, Issue 2, February 2026.
Ginsenoside Rg1 (Rg1) from Panax ginseng shows multifunctional health effects. Although oral bioavailability is low and blood–brain barrier (BBB) penetration is limited, delivery systems such as liposomes and nanoparticles may improve exposure. Rg1 reduces inflammation/oxidative stress by inhibiting nuclear factor‐κB (NF‐κB) signaling and reactive ...
Hernán Cortés, Enrique Lima, Lorena Duarte‐Peña, Sheila I. Peña‐Corona, Zainab M. Almarhoon, Rajesh Kaverikana, Shivaprasad Shetty Mangalpady, Vinayaka Babu Shet, Nikshitha Manjeshwar, Javad Sharifi‐Rad, Jen‐Tsung Chen, Gerardo Leyva‐Gómez, William N. Setzer, Daniela Calina   +13 more
wiley   +1 more source