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Topic Review
Substrate Selection in Neurodegenerative Diseases
Neurodegenerative diseases express multiple clinical phenotypes. A diversity of clinical phenotypes has been attributed to the ability of amyloidogenic proteins  to acquire multiple, self-replicating states referred to as strains. This article put forward a new hypothesis referred to as substrate selection hypothesis, according to which individual strains selectively recruit protein isoforms with a subset of posttranslational modifications that fit into strain-specific structures. As a result of selective recruitment, strain-specific patterns of posttranslational modifications are formed, giving rise to unique disease phenotypes.
  • 558
  • 24 Feb 2021
Topic Review
Sublingual Immunotherapy for Aeroallergens
Sublingual immunotherapy represents an important progress in the use of personalized medicine in children with allergic asthma. It is a viable option for house dust mite driven asthma and in subjects with the asthma associated with allergic rhinitis.
  • 407
  • 08 Feb 2021
Topic Review
Sublethal Cell Death Signaling
An important role of cell death pathways is to protect tissues and minimize disease by limiting the transference of potentially oncogenic mutations to daughter clones. However, there is increasing evidence demonstrating that activation of sublethal cell death signaling pathways, in particular apoptotic signaling, in the absence of direct DNA damaging stimuli, can promote genomic instability in cells that fail to die. This may increase the risk of the formation of subsequent neoplasms. Apoptosis-mediated mutagenesis occurs indirectly via sublethal activation of caspases and apoptotic nucleases (specifically CAD). On the other hand, cells surviving sublethal necroptotic signaling did not acquire mutations, most likely due to caspase-independent pathways, although the possibility of mutagenesis under conditions of oxidative stress are still elusive. It may therefore be possible for necroptosis-inducing anti-cancer drugs to be less likely than apoptosis-inducing or DNA damaging drugs to trigger therapy-related cancers.
  • 868
  • 12 Jul 2021
Topic Review
Subjective and Electroencephalographic Sleep Parameters
Autism spectrum disorder (ASD) is a neurodevelopmental condition characterized by impairment in social interaction and communication, and by restricted, repetitive patterns of behaviors, interests, or activities. ASD covers a group of complex and heterogeneous clinical situations with different levels of severity according to both the core symptoms and the frequent comorbidity with other neurodevelopmental disorders and medical conditions. Co-occurring clinical conditions generally endure from childhood to adolescence, worsening the health-related quality of life for both children and families.
  • 467
  • 29 Sep 2021
Topic Review
Suberoylanilide Hydroxamic Acid as a Neuroactive Compound
Suberoylanilide hydroxamic acid (SAHA) was reported as a promising therapeutic molecule for several neurological disorders that still lack effective treatments.
  • 244
  • 18 Sep 2023
Topic Review
Subcritical-Water Extraction of Natural Products
Subcritical water refers to high-temperature and high-pressure water, but below water's critical point of 374 °C and 218 atm. A unique and useful characteristic of subcritical water is that its polarity can be dramatically decreased with increasing temperature. Therefore, subcritical water can behave similarly to methanol or ethanol. This makes subcritical water a green extraction fluid used for a variety of organic species. 
  • 696
  • 09 Jul 2021
Topic Review
Subcortical Band Heterotopia
Subcortical band heterotopia is a condition in which nerve cells (neurons) do not move (migrate) to their proper locations in the fetal brain during early development.
  • 488
  • 23 Dec 2020
Topic Review
Subclinical Acute Kidney Injury in Patients with COVID-19
Since the outbreak of COVID-19 disease, a bidirectional interaction between kidney disease and the progression of COVID-19 has been demonstrated. Kidney disease is an independent risk factor for mortality of patients with COVID-19 as well as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection leading to the development of acute kidney injury (AKI) and chronic kidney disease (CKD) in patients with COVID-19. However, the detection of kidney damage in patients with COVID-19 may not occur until an advanced stage based on the current clinical blood and urinary examinations. Some studies have pointed out the development of subclinical acute kidney injury (subAKI) syndrome with COVID-19. This syndrome is characterized by significant tubule interstitial injury without changes in the estimated glomerular filtration rate. Despite the complexity of the mechanism(s) underlying the development of subAKI, the involvement of changes in the protein endocytosis machinery in proximal tubule (PT) epithelial cells (PTECs) has been proposed.
  • 465
  • 29 Nov 2022
Topic Review
Subcellular Localization of the Asp/ASPM Proteins
Investigations on different cell types showed that Asp (Drosophila abnormal spindle)/Aspm/ASPM (Abnormal Spindle-like Microcephaly-associated; or MCPH5) depletion disrupts one or more of the following mitotic processes: aster formation, spindle pole focusing, centrosome-spindle coupling, spindle orientation, metaphase-to-anaphase progression, chromosome segregation, and cytokinesis.
  • 405
  • 31 Mar 2023
Topic Review
Subcellular Localization of Membrane-Type-1 Matrix Metalloproteinase
Matrix metalloproteinases (MMPs) are critical enzymes involved in a variety of cellular processes. MMPs are well known for their ability to degrade the extracellular matrix (ECM) and their extracellular role in cell migration. Membrane-type-1 matrix metalloproteinase (MT1-MMP), a transmembrane protein, is first known to localize to the cell membrane.
  • 556
  • 15 Sep 2022
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