Results 61 to 70 of about 1,275,847 (309)

The Role of Cumulus Cells for The Immature Oocyte Undergoing In Vitro Maturation Rescue: A Retrospective Analysis [PDF]

International Journal of Fertility and Sterility
Background: Lack of matured oocytes after ovarian stimulation for in vitro fertilization (IVF) is one problem affect­ing the number of good-quality embryos.
Yudha Sudewo, Binarwan Halim, Diana Novi, Ichwaniul Adenin, Henry Salim Siregar, Muhammad Fidel Ganis Siregar, Muharam Natadisastra, Muhammad Rizki Yaznil, Irwin Lamtota Lumbanraja   +8 more
doaj   +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

Effects of aerosols from heated tobacco products with flavors on the discoloration of bovine tooth enamel

Clinical and Experimental Dental Research, 2023
Objectives This in vitro study assessed the potential of tooth discoloration by aerosols generated from three heated tobacco products (HTPs) with different specifications: in‐direct heating tobacco system platform 1.0a (IT1.0a), in‐direct heating tobacco
Takeshi Kurachi, Shinnosuke Chuman, Takuya Suzuki, Terushige Kubota, Shinkichi Ishikawa   +4 more
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Reverse engineering applied to a lumbar vertebra [PDF]

, 2007
Bone studies can be made in vivo or in vitro. However, disadvantages of both traditional techniques call for a compromise between the two. Reverse engineering allows in vitro bone samples to be simulated and analysed in a virtual in vivo environment thus
Lupi, Andre, Sant, Zdenka
core  

The newfound relationship between extrachromosomal DNAs and excised signal circles

FEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Performance of progressive and constant tapered instruments rotary systems at canal preparation

RGO: Revista Gaúcha de Odontologia, 2018
Objective: The aim of this study was to compare the performance of two nickel-titanium rotary systems regarding the preparation time, final shape of canal, incidence of aberration, transportation, and fracture of instrument.
Bruna GENARI, Ruggiero Silveira STELLO, Fabiana Soares GRECCA, Susana Maria Werner SAMUEL , Fabrício Mezzomo COLLARES , Paul Michael Howell DUMMER   +5 more
doaj   +1 more source

The use of near infrared reflectance spectroscopy (NIRS) for prediction of the nutritive value of barley for growing pigs [PDF]

, 2006
peer-reviewedThere is a need in the feed industry for a rapid means of evaluating the nutritive value of feeds and feed ingredients. Chemical analysis provides only basic information and most of the laboratory techniques take too long for this ...
Agnew, R.E., McCann, M.E.E., McCracken, K.J.   +2 more
core  

In Vitro Techniques for the Assessment of Neurotoxicity

Environmental Health Perspectives, 1998
Risk assessment is a process often divided into the following steps: a) hazard identification, b) dose-response assessment, c) exposure assessment, and d) risk characterization. Regulatory toxicity studies usually are aimed at providing data for the first two steps.
G. J. Harry, M. Billingsley, A. Bruinink, I. L. Campbell, W. Classen, D. C. Dorman, C.L. Galli, D. Ray, R. A. Smith, H. A. Tilson   +9 more
openaire   +3 more sources

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source