Results 51 to 60 of about 1,457,982 (311)

How is spontaneous symmetry breaking possible? [PDF]

, 2011
We pose and resolve a seeming paradox about spontaneous symmetry breaking in the quantum theory of infinite systems. For a symmetry to be spontaneously broken, it must not be implementable by a unitary operator.
Halvorson, Hans, Baker, David John
core  

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

FEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa, Shinya Sugimoto, Toshiro Sato   +2 more
wiley   +1 more source

Organ-dependent variability in mineral composition, phytochemicals and antioxidant potentials in Polygonum equisetiforme parts

International Journal of Plant Based Pharmaceuticals
Polygonum equisetiforme is a perennial herbaceous plant thriving in the arid regions of Tunisia and widely used in health care and self-medication. The objective of the current study was to investigate the distribution of minerals, phenolic compounds ...
Maher Mahmoudi, Fayçal Boughalleb, Samah Maaloul, Talel Bouhamda, Nasri Nizar, Raoudha Abdellaoui   +5 more
doaj   +1 more source

Identification of a Shiga toxin A‐derived peptide internalized into Gb3 receptor‐bearing cells via interaction with the Shiga toxin B subunit

FEBS Letters, EarlyView.
The process of internalization of the Shiga toxin A subunit via formation of a complex with the Shiga toxin B subunit, which specifically binds to the Gb3 receptor. The peptide is designed to act as a carrier of drugs into cancer cells. Here, we explored the potential of peptides derived from the catalytic A subunit of Shiga toxin (STxA) to be drug ...
Giulia Opassi, João C. Encarnação, Valeria Napolitano, Grzegorz Dubin, Grzegorz Popowicz, Karl Andersson, U. Helena Danielson   +6 more
wiley   +1 more source

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

FEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta, Hari Baskar Balasubramanian, Amir Pasokh, Marietta Zille   +3 more
wiley   +1 more source

Spontaneous migration of periocular glass foreign body: An interesting case

Kerala Journal of Ophthalmology, 2017
The occurrence of soft-tissue foreign bodies (FBs) in and around the orbit is often seen after trauma. Wound exploration and removal of the embedded materials is the standard of care. Relevant investigations help to detect retained FBs in suspected cases.
Padma B Prabhu, Deepak Vellarikkal, Babitha Valiayaveettil   +2 more
doaj   +1 more source

Liver organoids: modelling complexity in homeostasis and disease

FEBS Letters, EarlyView.
Studying liver in vitro has been challenging because simple 2D cell cultures fail to capture liver's cellular and architectural complexity. To bridge this gap, scientists increasingly use organoids, 3D liver models which better mimic liver composition and function. This review examines recent advances in liver organoid complexity and realism, discusses
Anna M. Dowbaj, Meritxell Huch
wiley   +1 more source

NIOSH updates spontaneous combustion assessment software [PDF]

"Objective: To update the current SPONCOM software to SponCom 2.0 with a Windows-based platform, using tabs and easy-to-navigate screens for entering or selecting data.

core   +1 more source

Decidual Macrophages Are Significantly Increased in Spontaneous Miscarriages and Over-Express FasL [PDF]

, 2012
Decidual macrophages (DM) are the second most abundant population in the fetal-maternal interface. Their role has been so far identified as being local immuno-modulators favoring the maternal tolerance to the fetus.
Iordanis Navrozoglou, Darius Dian, Antonis Makrigiannakis, Sabine Guenther, Anz, David, Jeschke, Udo, Klaus Friese, Udo Jeschke, Thomas Vrekoussis, Vrekoussis, Thomas, Knabl, Julia, Dian, Darius, Julia Knabl, Bayer, Birgit, Heublein, Sabine, Navrozoglou, Iordanis, Friese, Klaus, Sabine Heublein, Makrigiannakis, Antonis, David Anz, Guenther, Sabine, Birgit Bayer   +21 more
core   +1 more source

Emerging experimental and computational methods for studying redox‐regulated structural transitions

FEBS Letters, EarlyView.
Redox reactions can reshape proteins and alter how they behave in cells, with important consequences for health and disease. This review explores emerging experimental and computational approaches for discovering these redox‐sensitive protein switches, revealing their structural effects, and predicting their behavior, opening new opportunities to ...
Tasneem Rass, Dana Reichmann, Gábor Erdős   +2 more
wiley   +1 more source