Results 81 to 90 of about 8,773 (221)

La porfiria aguda intermitente y el cirujano: un reto diagnóstico Reporte de un caso y revisión de la literatura Acute intermittent porphyria and the surgeon: a diagnostic challenge. Case report and literature review

open access: yesRevista Colombiana de Cirugía, 2011
La porfiria intermitente aguda es conocida, en el ámbito de la cirugía, como una de las causas de abdomen agudo no quirúrgico. No obstante, lo que no se menciona con frecuencia es la posibilidad de que cualquier procedimiento quirúrgico precipite un ...
Lilian Torregrosa   +3 more
doaj  

Acute Intermittent Porphyria in Childhood Presenting with Hypertensive Emergency and Posterior Reversible Encephalopathy Syndrome

open access: yesJournal of Pediatric Critical Care, 2016
Acute intermittent porphyria is an inherited metabolic disease due to deficiency of the enzyme porphobilinogen deaminase that can affect the autonomic, peripheral and central nervous system.
Rishab Bharadwaj   +2 more
doaj   +1 more source

The 5' untranslated region of the I factor, a long interspersed nuclear element-like retrotransposon of Drosophila melanogaster, contains an internal promoter and sequences that regulate expression [PDF]

open access: yes, 1993
The I-R system of hybrid dysgenesis in Drosophila melanogaster is controlled by a long interspersed nuclear element-like retroposon, the I factor.
BUCHETON, A   +3 more
core   +1 more source

Design Strategies for Novel Lipid Nanoparticle for mRNA Vaccine and Therapeutics: Current Understandings and Future Perspectives

open access: yesMedComm, Volume 6, Issue 10, October 2025.
This review summarizes strategies to optimize lipid nanoparticles (LNPs) for improved targeting, endosomal escape, and safety. It highlights mRNA design, alternative delivery systems, and recent therapeutic advances across infectious diseases, cancer, and drug applications.
Xiaochi Li   +7 more
wiley   +1 more source

Patterns in evolutionary origins of heme, chlorophyll a and isopentenyl diphosphate biosynthetic pathways suggest non-photosynthetic periods prior to plastid replacements in dinoflagellates [PDF]

open access: yes, 2018
BackgroundThe ancestral dinoflagellate most likely established a peridinin-containing plastid, which have been inherited in the extant photosynthetic descendants.
Inagaki Yuji   +2 more
core   +2 more sources

Testing for Porphobilinogen in Urine [PDF]

open access: yesClinical Chemistry, 2002
Increased porphobilinogen (PBG) in urine is pathognomonic of an attack or “crisis” of acute porphyria (acute intermittent porphyria, variegate porphyria, hereditary coproporphyria); the absence of increased urinary PBG in a suspected attack excludes the diagnosis.
openaire   +2 more sources

Aprendizaje basado en problemas en Biología Vegetal [PDF]

open access: yes, 2012
El aprendizaje basado en problemas (ABP) es un método de enseñanzaaprendizaje que usa el problema como punto de partida para la adquisición e integración de nuevos conocimientos.
Avalos, A.   +4 more
core  

A Complex Case of Cholestasis in a Patient with ABCB4 and ABCB11 Mutations [PDF]

open access: yes, 2018
The low-phospholipid-associated cholelithiasis (LPAC) syndrome is a form of symptomatic cholelithiasis occurring in young adults, characterized by recurrence of symptoms after cholecystectomy and presence of hepatolithiasis.
Anapaz, V   +7 more
core   +1 more source

Exploring the Discrepancies in the Biological Activities of Extracts From Guadua angustifolia Var. Bicolor Londoño Collected in Two Different Sites

open access: yesChemistry &Biodiversity, Volume 22, Issue 9, September 2025.
ABSTRACT Guadua angustifolia var. bicolor Lodoño is a Colombian bamboo species that has shown promising medicinal properties. This study aims to investigate the differences in the chemical composition and biological activity of extracts from two different populations of G. angustifolia var. bicolor, collected in Bauru and Tatuí, Brazil.
João Kazlauckas   +2 more
wiley   +1 more source

FHL2 regulates hematopoietic stem cell functions under stress conditions. [PDF]

open access: yes, 2015
FHL2, a member of the four and one half LIM domain protein family, is a critical transcriptional modulator. Here, we identify FHL2 as a critical regulator of hematopoietic stem cells (HSCs) that is essential for maintaining HSC self-renewal under ...
Chen, J   +12 more
core   +2 more sources

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