Results 71 to 80 of about 16,852 (174)

Multiple Duties for Spindle Assembly Checkpoint Kinases in Meiosis

Frontiers in Cell and Developmental Biology, 2017
Cell division in mitosis and meiosis is governed by evolutionary highly conserved protein kinases and phosphatases, controlling the timely execution of key events such as nuclear envelope breakdown, spindle assembly, chromosome attachment to the spindle ...
Adele L. Marston, Katja Wassmann, Katja Wassmann   +2 more
doaj   +1 more source

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

Experimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

Identification of a Circular RNA as a Potential Diagnostic and Prognostic Biomarker in Breast Cancer Through Integrated Bioinformatic and Experimental Analyses

Analytical Science Advances, Volume 7, Issue 2, December 2026.
Forty circular RNAs were found to be significantly dysregulated in microarray datasets. Expression levels of hsa_circ_0000231 were significantly upregulated in breast cancer (BC) tissues, while hsa_circ_0011385 exhibited no significant difference in expression levels. This study also revealed that hsa_circ_0000231/hsa‐miR‐5683/CCNB1 regulatory axis may
MohamadReza Hashemi, Pejman Morovat, Azin Khoshghiafeh, Novin Nikbakhsh, Mohamadreza Ahmadifard   +4 more
wiley   +1 more source

Impact of Methylparaben on Cumulus Cell DNA Integrity and Porcine Oocyte Developmental Competence In Vitro

Journal of Applied Toxicology, Volume 46, Issue 9, Page 2985-2996, September 2026.
ABSTRACT Parabens (PBs) are compounds widely used as preservatives in personal care products, food, and pharmaceuticals. Methylparaben (MePB) is the most used by different industries due to its chemical properties and low cost. The high daily human exposure to these compounds has raised concerns about their potential effects on health, particularly on ...
Yenny Ramírez‐Jara, Brenda Casado, Miguel Betancourt, Adyeni Barajas‐Salinas, Eduardo Casas, Gabriela Hurtado‐Alvarado, Juan José Rodríguez‐Mercado, Alma López, Iván Bahena, Lizbeth Juárez‐Rojas, Leticia González‐Núñez, Fahiel Casillas   +11 more
wiley   +1 more source

Symmetrical Shape of the Meiotic Spindle is Dynamically Balanced [PDF]

Biophysical Journal, 2013
Meiotic spindle assembly is critical for achieving accurate chromosome segregation. The spindle mainly consists of microtubules and molecular motors. Recent studies have suggested that bipolar spindle formation requires the force balance sustained by molecular motors and polymerization-depolymerization dynamics of microtubules.
Suzuki, Kazuya, Takagi, Jun, Itabashi, Takeshi, Ishiwata, Shin'ichi   +3 more
openaire   +1 more source

Nampt-mediated spindle sizing secures a post-anaphase increase in spindle speed required for extreme asymmetry

Nature Communications, 2020
Meiotic cell division in oocytes is asymmetric and requires microtubule spindle migration after anaphase-onset. Here, the authors show that Nampt, an enzyme of the Nicotinamide adenine dinucleotide (NAD) biosynthetic pathway, contributes to post-anaphase
Zhe Wei, Jessica Greaney, Wei-Guo Nicholas Loh, Hayden Anthony Homer   +3 more
doaj   +1 more source

Multi‐Omics Profiling Reveals Immunomodulatory and Pro‐Regenerative Effects of a Graphene Oxide–Collagen Scaffold in Massive Rotator Cuff Tears

Advanced Science, Volume 13, Issue 44, 7 August 2026.
A graphene oxide/collagen scaffold is developed for chronic massive rotator cuff tear repair. The scaffold improves compressive stability, supports reparative mesenchymal differentiation, and modulates the immune microenvironment. In chronic MRCT models, it reduces muscle degeneration, enhances tendon–bone regeneration, and improves functional recovery,
Renwen Wan, Yechuan Deng, Zixin Hu, Yanwei He, Xinting Feng, Jun Ma, Yisheng Chen, Zhijie Zhao, Jie Mei, Zhiheng Lin, Wei Luo, Zhengyuan Fang, Zhufeng Hu, Kunlun Feng, Xinrong Li, Dan Wu, Bowen Han, James Hoi po Hui, Xuanyong Liu, Chen Chen, Gang Chen, Shiyi Chen, Nirong Bao, Jiajun Qiu, Zhiwen Luo   +24 more
wiley   +1 more source

Kinetochore size correlates with chromosome size in Star of Bethlehem (Ornithogalum kochii Parl., Asparagaceae)

Plant Biology, Volume 28, Issue 5, Page 1737-1742, August 2026.
Cytogenetic quantification of KNL1‐labelled kinetochores in Ornithogalum kochii reveals a significant positive scaling relationship between chromosome size and kinetochore size, demonstrating that chromosome–kinetochore scaling operates even across moderate intra‐karyotype size variation.
K. Panda, M. Hroneš, F. Zedek
wiley   +1 more source

Chromosomal Instability Drives Glioblastoma Heterogeneity and Therapeutic Opportunities

Advanced Science, Volume 13, Issue 39, 13 July 2026.
ABSTRACT Glioblastoma, the most aggressive and lethal form of brain cancer, is defined by profound genomic instability, with Chromosomal Instability (CIN) playing a central role in driving tumor progression, therapy resistance, and poor prognosis. CIN is characterized by numerical and structural alterations, is driven by mechanisms such as mitotic ...
Amarnath Pal, Milan Patra, Rianita Mondal, Shubhasis Haldar   +3 more
wiley   +1 more source

PSMA8‐Containing 20S Proteasome Regulates Spermiogenesis and Male Fertility

Advanced Science, Volume 13, Issue 39, 13 July 2026.
PSMA8 assembles s20S proteasome that degrades specific substrates in elongating spermatids. Degradation of s20S‐substrates activates translation of FXR1‐target mRNAs, which are essential for mitochondrial sheath formation and sperm morphogenesis.
Huiwen Cao, Qianting Zhang, Wei Xu, Anxuan Fang, Haomang Xu, Cheng Qiu, Lugeng He, Chao Yu   +7 more
wiley   +1 more source