You're using an outdated browser. Please upgrade to a modern browser for the best experience.
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 by:
Most Viewed Latest Alphabetical (A-Z) Alphabetical (Z-A)
Filter:
All Topic Review Biography Peer Reviewed Entry Video Entry
Topic Review
Phage Therapy for Crops
Phage therapy consists of applying bacteriophages, whose natural function is to kill specific bacteria. Bacteriophages are safe, evolve together with their host, and are environmentally friendly. The indiscriminate use of antibiotics and salt minerals (Zn2+ or Cu2+) has caused the emergence of resistant strains that infect crops, causing difficulties and loss of food production. Phage therapy is an alternative that has shown positive results and can improve the treatments available for agriculture.
  • 1.5K
  • 08 Feb 2023
Topic Review
Selenium/Selenoproteins in Male Reproductive Function
Selenium (Se) is an important trace mineral having many essential roles at the cellular and organismal levels in animal and human health. The biological effects of Se are mainly carried out by selenoproteins (encoded by 25 genes in humans and 24 in mice). As an essential component of selenoproteins, Se performs structural and enzymic roles; in the latter context it is well known for its catalytic and antioxidative functions. Studies involving different animal models have added great value to our understanding regarding the potential implications of Se and selenoproteins in mammalian fertility and reproduction. 
  • 1.5K
  • 15 Sep 2021
Topic Review
DNA Barcoding and Seafood Mislabelling
The recent increase in international fish trade leads to the need for improving the traceability of fishery products. In relation to this, consistent monitoring of the production chain focusing on technological developments, handling, processing and distribution via global networks is necessary. Molecular barcoding has therefore been suggested as the gold standard in seafood species traceability and labelling.
  • 1.5K
  • 20 Jul 2023
Topic Review
mTORC1-Autophagy Axis for Skeletal Muscle Diseases
The mechanistic target of rapamycin (mTOR) complex 1, mTORC1, integrates nutrient and growth factor signals with cellular responses and plays critical roles in regulating cell growth, proliferation, and lifespan. mTORC1 signaling has been reported as a central regulator of autophagy by modulating almost all aspects of the autophagic process, including initiation, expansion, and termination. An increasing number of studies suggest that mTORC1 and autophagy are critical for the physiological function of skeletal muscle and are involved in diverse muscle diseases.
  • 1.5K
  • 29 Dec 2022
Topic Review
Legume Pangenome for Crop Improvement
Legume crops play a crucial role in ensuring global food security. Legume reference genomes have been constructed for soybean, chickpea, common bean, pigeonpea, pea, lupin, peanut, cowpea, and mungbean. However, pangenomes are needed to obtain insights into the genome dynamics, gene-content variation, genetic basis of agronomic-trait variation, and evolutionary relationship in various legumes.
  • 1.5K
  • 30 Nov 2022
Topic Review
Coenzyme Q10 in Cardiovascular Diseases
Coenzyme Q10 (CoQ10) is a ubiquitous factor present in cell membranes and mitochondria, both in its reduced (ubiquinol) and oxidized (ubiquinone) forms. Its levels are high in organs with high metabolism such as the heart, kidneys, and liver because it acts as an energy transfer molecule but could be reduced by aging, genetic factors, drugs (e.g., statins), cardiovascular (CV) diseases, degenerative muscle disorders, and neurodegenerative diseases. As CoQ10 is endowed with significant antioxidant and anti-inflammatory features, useful to prevent free radical-induced damage and inflammatory signaling pathway activation, its depletion results in exacerbation of inflammatory processes. Therefore, exogenous CoQ10 supplementation might be useful as an adjuvant in the treatment of cardiovascular diseases such as heart failure, atrial fibrillation, and myocardial infarction and in associated risk factors such as hypertension, insulin resistance, dyslipidemias, and obesity.
  • 1.5K
  • 09 Jun 2021
Topic Review
Age-Dependent Decline of NAD+—Universal Truth or Confounded Consensus?
Nicotinamide adenine dinucleotide (NAD+) is an essential molecule involved in various metabolic reactions, acting as an electron donor in the electron transport chain and as a co-factor for NAD+-dependent enzymes. Despite systematic claims of overall decline in NAD+ levels with aging in multiple species, including humans, the evidence to support such claims is very limited and often restricted to a single tissue or cell type. The literature on the topic has been reviewed and it is found that there is a need for much larger, preferably longitudinal, studies to assess how NAD+ levels develop with aging.
  • 1.4K
  • 11 Jan 2022
Topic Review
Dostarlimab
Dostarlimab (JEMPERLI) is a PD-1 monoclonal antibody for the treatment of adult patients, with mismatch repair deficient (dMMR), recurrent or advanced endometrial cancer that has progressed on or following prior therapy with a platinum-containing regimen. As determined by an FDA-approved test this indication was granted rapid approval based on the rate of tumor response and the duration of the response. Continued approval for this indication is conditioned on further confirmatory trials demonstrating and documenting clinical benefit.
  • 1.4K
  • 11 Aug 2022
Topic Review
G-Quadruplex-Binding Proteins
G-quadruplexes (G4s) are non-canonical secondary nucleic acid structures. Sequences with the potential to form G4s are abundant in regulatory regions of the genome including telomeres, promoters and 5′ non-coding regions, indicating they fulfill important genome regulatory functions. In recent years, an increasing number of G-quadruplex-binding proteins have been identified with biochemical experiments. G4-binding proteins are involved in vital cellular processes such as telomere maintenance, DNA replication, gene transcription, mRNA processing. Therefore, G4-binding proteins are also associated with various human diseases.
  • 1.4K
  • 17 May 2022
Topic Review
Mitochondrial-Derived Vesicles
Mitophagy is crucial for maintaining mitochondrial quality. The endosomal–lysosomal system is a more accessible pathway through which subtypes of extracellular vesicles, which also contain mitochondrial constituents, are released for disposal. The inclusion of mitochondrial components into extracellular vesicles occurs in the setting of mild mitochondrial damage and during impairment of lysosomal function. By releasing mitochondrial-derived vesicles, cells limit the unload of mitochondrial damage-associated molecular patterns with proinflammatory activity.
  • 1.4K
  • 17 Nov 2023
Topic Review
Peptides in Diagnostics
The specificity of a diagnostic assay depends upon the purity of the biomolecules used as a probe. To get specific and accurate information of a disease, the use of synthetic peptides in diagnostics have increased in the last few decades, because of their high purity profile and ability to get modified chemically. The discovered peptide probes are used either in imaging diagnostics or in non-imaging diagnostics. In non-imaging diagnostics, techniques such as Enzyme-Linked Immunosorbent Assay (ELISA), lateral flow devices (i.e., point-of-care testing), or microarray or LC-MS/MS are used for direct analysis of biofluids. Among all, peptide-based ELISA is considered to be the most preferred technology platform. Similarly, peptides can also be used as probes for imaging techniques, such as single-photon emission computed tomography (SPECT) and positron emission tomography (PET). The role of radiolabeled peptides, such as somatostatin receptors, interleukin 2 receptor, prostate specific membrane antigen, αβ3 integrin receptor, gastrin-releasing peptide, chemokine receptor 4, and urokinase-type plasminogen receptor, are well established tools for targeted molecular imaging ortumor receptor imaging. Low molecular weight peptides allow a rapid clearance from the blood and result in favorable target-to-non-target ratios. It also displays a good tissue penetration and non-immunogenicity. The only drawback of using peptides is their potential low metabolic stability. 
  • 1.4K
  • 28 Sep 2021
Topic Review
Artificial Intelligence in Cardiovascular Genetics
Polygenic diseases, which are genetic disorders caused by the combined action of multiple genes, pose unique and significant challenges for the diagnosis and management of affected patients. A major goal of cardiovascular medicine has been to understand how genetic variation leads to the clinical heterogeneity seen in polygenic cardiovascular diseases (CVDs). Recent advances and emerging technologies in artificial intelligence (AI), coupled with the ever-increasing availability of next generation sequencing (NGS) technologies, now provide researchers with unprecedented possibilities for dynamic and complex biological genomic analyses. Combining these technologies may lead to a deeper understanding of heterogeneous polygenic CVDs, better prognostic guidance, and, ultimately, greater personalized medicine. Advances will likely be achieved through increasingly frequent and robust genomic characterization of patients, as well the integration of genomic data with other clinical data, such as cardiac imaging, coronary angiography, and clinical biomarkers. 
  • 1.4K
  • 28 Mar 2022
Topic Review
Cathepsin Proteases and Bcl-2 Proteins
Taken with the growing importance of cathepsin-mediated substrate proteolysis in tumor biology and progression, the focus and emphasis placed on therapeutic design and development is coming into fruition. Underpinning this approach is the invariable progression from the direction of fully characterizing cathepsin protease members and their substrate targets, towards targeting such an interaction with tangible therapeutics. The two groups of such substrates that have gained much attention over the years are the pro- and anti- apoptotic protein intermediates from the extrinsic and intrinsic signaling arms of the apoptosis pathway.
  • 1.4K
  • 08 May 2021
Topic Review
Ethical Approach in Echinoderms
The majority of ethical and welfare approaches in animal research have primarily focused on vertebrates. Echinoderms are a phylum of marine invertebrates. They are often key, long-living species that shape and maintain the status of many marine ecosystems, inhabiting a wide range of ecological niches from the abyssal depths of the oceans to the intertidal zone. Progress has been made toward developing an ethical framework for invertebrates, such as crustaceans, echinoderms, and cephalopods.
  • 1.4K
  • 15 Nov 2023
Topic Review
Agrobacterium T−DNA Integration
Agrobacterium species transfer DNA (T−DNA) to plant cells where it may integrate into plant chromosomes. The process of integration is thought to involve invasion and ligation of T-DNA, or its copying, into nicks or breaks in the host genome. Integrated T−DNA often contains, at its junctions with plant DNA, deletions of T−DNA or plant DNA, filler DNA, and/or microhomology between T-DNA and plant DNA pre-integration sites. T−DNA integration is also often associated with major plant genome rearrangements, including inversions and translocations. These characteristics are similar to those often found after repair of DNA breaks, and thus DNA repair mechanisms have frequently been invoked to explain the mechanism of T−DNA integration. However, the involvement of specific plant DNA repair proteins and Agrobacterium proteins in integration remains controversial, with numerous contradictory results reported in the literature.
  • 1.4K
  • 31 Aug 2021
Topic Review
Live Cell and Antioxidant Activities
Plant extracts and pharmacopoeias represent an exceptional breeding ground for the discovery of new antioxidants. Until recently, the antioxidant activity was only measured by chemical hydrogen atom transfer (HAT) and single-electron transfer (SET) cell-free assays that do not inform about the actual effect of antioxidants in living systems. By providing information about the mode of action of antioxidants at the subcellular level, recently developed live cell assays are now changing the game.
  • 1.4K
  • 21 Jun 2021
Topic Review
Acraea (Genus)
Acraea is a genus of brush-footed butterflies (family Nymphalidae) of the subfamily Heliconiinae. It seems to be highly paraphyletic and has long been used as a "wastebin taxon" to unite about 220 species of anatomically conservative Acraeini. Some phylogenetic studies show that the genus Acraea is monophyletic if Bematistes and Neotropical Actinote are included (see Pierre & Bernaud, 2009). Most species assembled here are restricted to the Afrotropic ecozone, but some are found in India , Southeast Asia, and Australia .
  • 1.4K
  • 15 Nov 2022
Topic Review
Structure of Rubisco,Dinoflagellates
Ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco), is one of the best studied enzymes. Rubisco catalyses CO2 assimilation and therefore tt is crucial for photosynthesis, and for all of biosphere’s productivity. There are four isoforms of this enzyme, differing by amino acid sequence composition and quaternary structure. However, there is still a group of organisms, dinoflagellates, single-cell eukaryotes, that are confirmed to possess Rubisco, but no successful purification of the enzyme of such origin, and hence a generation of a crystal structure was reported to date.
  • 1.4K
  • 16 Aug 2021
Topic Review
New treatment strategies for β-thalassemia
Beta-thalassemia (β-thalassemia) is an autosomal recessive inherited disease characterized by decreased production of the β-globin chains of hemoglobin (Hb) A. The normal structure of HbA is two α- and two β-globin chains. Individuals with β-thalassemia are either homozygous or double heterozygotes for mutations in the β-globin gene.
  • 1.4K
  • 13 Jul 2021
Topic Review
Forensic Applications of Markers Present on X Chromosome
The X chromosome is considered one of the most stable nuclear chromosomes, presenting a size length of approximately 155 million base pairs (Mb), accounting for nearly 5% of the human genome. The X chromosome has many characteristics that are not shared by its counterpart, the Y chromosome. In males, the heterogametic sex, there is a single copy of the X chromosome and a single Y chromosome, while in females, there are two copies of the X chromosome. These mammalian sex chromosomes are believed to have evolved from an ordinary pair of autosomes, referred to as the ancestral protosex chromosomes. The proto-X and proto-Y underwent a series of deletion/addition events during evolution and became the modern X and Y. Additionally, it is believed that a mutation in a sex-determining locus (SRY) is responsible for triggering an evolutionary process of stepwise loss of recombination between the ancestral autosome pair, creating an X-specific region and a Y-specific region in the proto-Y (MSY).
  • 1.4K
  • 22 Sep 2022
  • Page
  • of
  • 48
Academic Video Service