Subject:
All Disciplines Arts & Humanities Biology & Life Sciences Business & Economics Chemistry & Materials Science Computer Science & Mathematics Engineering Environmental & Earth Sciences Medicine & Pharmacology Physical Sciences Public Health & Healthcare Social Sciences
Sort:
Hottest Latest Alphabetical (A-Z) Alphabetical (Z-A)
Type:
All Topic Review Biography
Topic Review
Circadian Regulation of Retinal Pigment Epithelium Function
The retinal pigment epithelium (RPE) is a single layer of cells located between the choriocapillaris vessels and the light-sensitive photoreceptors in the outer retina. The RPE performs physiological processes necessary for the maintenance and support of photoreceptors and visual function. Among the many functions performed by the RPE, the timing of the peak in phagocytic activity by the RPE of the photoreceptor outer segments that occurs 1–2 h. after the onset of light has captured the interest of many investigators and has thus been intensively studied. Several studies have shown that this burst in phagocytic activity by the RPE is under circadian control and is present in nocturnal and diurnal species and rod and cone photoreceptors. Previous investigations have demonstrated that a functional circadian clock exists within multiple retinal cell types and RPE cells. However, the anatomical location of the circadian controlling this activity is not clear. Experimental evidence indicates that the circadian clock, melatonin, dopamine, and integrin signaling play a key role in controlling this rhythm.
  • 367
  • 21 Mar 2022
Topic Review
CircRNA Regulation of Skeletal Muscle Growth and Development
Circular RNA (circRNA) is a novel class of non-coding RNA generated by pre-mRNA back splicing, which is characterized by a closed-loop structure. The skeletal muscle is the largest organ in animals, which constitutes 30~–50% of the body mass. Skeletal muscle plays an important role in locomotion and metabolism. Therefore, proper muscle growth and homeostasis are the critical determinants of human motor performance. Recent studies showed that circRNAs are abundant in skeletal muscle tissue, and their expression levels are regulated during muscle development and aging. 
  • 399
  • 23 Mar 2022
Topic Review
Circular Bacterial Chromosome
A circular bacterial chromosome is a bacterial chromosome in the form of a molecule of circular DNA. Unlike the linear DNA of most eukaryotes, typical bacterial chromosomes are circular. Most bacterial chromosomes contain a circular DNA molecule – there are no free ends to the DNA. Free ends would otherwise create significant challenges to cells with respect to DNA replication and stability. Cells that do contain chromosomes with DNA ends, or telomeres (most eukaryotes), have acquired elaborate mechanisms to overcome these challenges. However, a circular chromosome can provide other challenges for cells. After replication, the two progeny circular chromosomes can sometimes remain interlinked or tangled, and they must be resolved so that each cell inherits one complete copy of the chromosome during cell division.
  • 979
  • 25 Nov 2022
Topic Review
Circular Prokaryote Chromosome
A circular prokaryote chromosome is a chromosome in bacteria and archaea, in the form of a molecule of circular DNA. Unlike the linear DNA of most eukaryotes, typical prokaryote chromosomes are circular. Most prokaryote chromosomes contain a circular DNA molecule – there are no free ends to the DNA. Free ends would otherwise create significant challenges to cells with respect to DNA replication and stability. Cells that do contain chromosomes with DNA ends, or telomeres (most eukaryotes), have acquired elaborate mechanisms to overcome these challenges. However, a circular chromosome can provide other challenges for cells. After replication, the two progeny circular chromosomes can sometimes remain interlinked or tangled, and they must be resolved so that each cell inherits one complete copy of the chromosome during cell division.
  • 434
  • 17 Oct 2022
Topic Review
Circular RNAs in Metabolism
Circular RNAs (circRNAs) are an emerging group of long non-coding RNAs (lncRNAs) and have attracted attention again according to the progress in high-throughput sequencing in recent years. circRNAs are genome transcripts produced from pre-messenger (m)RNA regions in a specific process called “back-splicing,” which forms covalently closed continuous loops.
  • 316
  • 30 Jan 2022
Topic Review
Circular RNAs Modulate Cancer Hallmark and Molecular Pathways
Circular RNAs (circRNAs) are noncoding products of backsplicing of pre-mRNAs which have been established to possess potent biological functions. Due to their circular nature, the are characterized by high stability. Dysregulated circRNA expression has been linked to diseases including different types of cancer.
  • 266
  • 10 Mar 2022
Topic Review
CK2 in Musculoskeletal Disorders
Protein kinase CK2 (CK2) influences one-fifth of the cellular phosphoproteome. It regulates almost all cellular pathways and is thus a critical switch between biological processes within a cell. Inhibition of CK2 reverses oncogene addiction of tumor and alters tumor microenvironment.
  • 92
  • 07 Feb 2024
Biography
Clemente Estable
Clemente Estable (23 May 1894, Canelones – 27 October 1976, Montevideo) was a University Professor and Docent. He was a pioneer in the areas of cellular biology and neurobiology research. Estable was an educator, scientist and philosopher who left his mark on the intellectual collective thinking of his native land. He lived his life guided by strong democratic values and ethical principles and
  • 551
  • 01 Dec 2022
Topic Review
CLIP
CLIP (cross-linking immunoprecipitation) is a method used in molecular biology that combines UV cross-linking with immunoprecipitation in order to analyse protein interactions with RNA or to precisely locate RNA modifications (e.g. m6A). CLIP-based techniques can be used to map RNA binding protein binding sites or RNA modification sites of interest on a genome-wide scale, thereby increasing the understanding of post-transcriptional regulatory networks.
  • 994
  • 21 Oct 2022
Topic Review
ClpP
The mitochondrial protease called ClpP plays a central role in mitochondrial protein quality control. ClpP agonists have emerged as a novel class of mitochondria-targeting drugs. Hyperactivating ClpP induces uncontrolled, but selective, degradation of ClpP substrates and disrupts mitochondrial functions, leading to growth inhibition of breast cancer cells, without adverse effect in non-malignant cells. 
  • 646
  • 03 Apr 2023
  • Page
  • of
  • 161
Featured Entry Collections
>>

Featured Books

>>
Encyclopedia of Social Sciences
Encyclopedia of COVID-19
Encyclopedia of Fungi
Encyclopedia of Digital Society, Industry 5.0 and Smart City
Video Production Service
Feedback