Results 61 to 70 of about 3,196,686 (255)

Dietary Protein Intake and Peritoneal Protein Losses in Peritoneal Dialysis Patients

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Peritoneal dialysis (PD) patients lose protein in their waste dialysate, potentially increasing their risk for malnutrition. We wished to determine whether there was any association between losses and dietary protein intake (DPI). Methods DPI was assessed from 24‐h dietary recall using Nutrics software.
Haalah Shaaker, Andrew Davenport
wiley   +1 more source

Time Course of PR of UV-Induced Chromosomal Aberrations and Lethal Damage in S and G2 Xenopus Cells [PDF]

, 1979
Sand G2 phase cells were exposed to 150 ergs mm⁻² UV and their ability to photoreactivate the induced cell killing (loss of colony forming ability) and chromosomal aberrations was determined as a function of time following the UV exposure.
Griggs, H. Gaston, Payne, Jan
core   +2 more sources

Immunocytochemical localization of chromatin regions UV-microirradiated in S phase or anaphase : Evidence for a territorial organization of chromosomes during cell cycle of cultured Chinese hamster cells [PDF]

, 1983
Chinese hamster cells (M3-1 line) in S phase were laser-UV-microirradiated (λ, 257 nm) at a small site of the nucleus. Cells were fixed either immediately thereafter or in subsequent stages of the cell cycle, including prophase and metaphase.
Avivi, Bennett, Berns, Boveri, Boveri, Comings, Cornelis, Cornelis, Cremer, Cremer, Cremer, Cremer, Cremer, Cremer, Cremer, Cremer, Cremer, Cremer, Earnshaw, Gray, Hager, Hancock, Hancock, Hens, Laemmli, Rabl, Regan, Sakharov, Sedat, Sperling, Stack, Trosko, Vogel, Zorn   +33 more
core   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Arabidopsis ULTRAVIOLET-B-INSENSITIVE4 maintains cell division activity by temporal inhibition of the anaphase-promoting complex/cyclosome [PDF]

, 2011
The anaphase-promoting complex/cyclosome (APC/C) is a multisubunit ubiquitin ligase that regulates progression through the cell cycle by marking key cell division proteins for destruction.
Berckmans, Barbara, Boudolf, Véronique, De Jaeger, Geert, De Veylder, Lieven, De Wit, Kevin, Heyman, Jefri, Koncz, Csaba, Lessa Alvim Kamei, Claire, Van Den Daele, Hilde, Verkest, Aurine   +9 more
core   +2 more sources

Organoids in pediatric cancer research

FEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Cdc6 ATPase activity disengages Cdc6 from the pre-replicative complex to promote DNA replication [PDF]

, 2015
© 2015, Chang et al.To initiate DNA replication, cells first load an MCM helicase double hexamer at origins in a reaction requiring ORC, Cdc6, and Cdt1, also called pre-replicative complex (pre-RC) assembly.
Speck, C
core   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Unscheduled DNA synthesis after partial UV irradiation of the cell nucleus [PDF]

, 1979
Cells of an euploid strain of the Chinese hamster synchronized in the G1 phase were microirradiated in the nucleus with a laser UV microbeam (λ = 257 nm) and pulse-labelled with [3H]thymidine. In autoradiographs of cells fixed immediately after the pulse
Berliner, Bostock, Brown, Christian Zorn, Christoph Cremer, Cleaver, Cohen, Comings, Cremer, Cremer, Cremer, Cremer, Deaven, Diaz, Dutrillaux, Ehmann, Feldman, Ghosh, Godin, Harris, Heneen, Hens, Hobarth, Hsu, Johnson, Juricek, Jürgen Zimmer, Loza Bonifaz, Moreno, Moreno, Nichols, Rasmussen, Robards, Sakharov, Sakharov, Schempp, Schwarzacher, Singh, Thomas Cremer, Vogel, Warburton, Werry, Wilkins, Williams, Yatani, Zorn, Zorn, Zorn   +47 more
core   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source