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Biomolecules, Volume 13, Issue 4

April 2023 - 140 articles

Cover Story: Rett syndrome (RTT) is a severe neurodevelopmental disorder characterized by motor and cognitive disabilities, the pathogenetic mechanisms of which remain to be fully elucidated. RTT is caused by mutations in MECP2, an epigenetic factor crucial for brain functioning. We found, in the brains of Mecp2-null mice, enhanced BBB permeability and the aberrant expression of the tight junction proteins Ocln and Cldn-5. Moreover, the Cldn3, Cldn12, Mpdz, Jam2, and Aqp4 genes, encoding factors with a role in the BBB structure and function, showed altered expressions in Mecp2-null brains. This study provides the first evidence of impaired BBB integrity in RTT and highlights a potential new molecular hallmark of the disease that might open new perspectives for the setting-up of novel therapeutic strategies. View this paper
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Articles (140)

  • Review
  • Open Access
4 Citations
3,579 Views
15 Pages

21 April 2023

Isolation and introduction of genetic mutations is the primary approach to characterize gene functions in model yeasts. Although this approach has proven very powerful, it is not applicable to all genes in these organisms. For example, introducing de...

  • Article
  • Open Access
11 Citations
3,135 Views
15 Pages

Adenosine A2A Receptors Shut Down Adenosine A1 Receptor-Mediated Presynaptic Inhibition to Promote Implementation of Hippocampal Long-Term Potentiation

  • Cátia R. Lopes,
  • Francisco Q. Gonçalves,
  • Simão Olaio,
  • Angelo R. Tomé,
  • Rodrigo A. Cunha and
  • João Pedro Lopes

21 April 2023

Adenosine operates a modulation system fine-tuning the efficiency of synaptic transmission and plasticity through A1 and A2A receptors (A1R, A2AR), respectively. Supramaximal activation of A1R can block hippocampal synaptic transmission, and the toni...

  • Article
  • Open Access
7 Citations
3,800 Views
20 Pages

Transcriptome Analysis of Redox Systems and Polyamine Metabolic Pathway in Hepatoma and Non-Tumor Hepatocyte-like Cells

  • Olga N. Ivanova,
  • George S. Krasnov,
  • Anastasiya V. Snezhkina,
  • Anna V. Kudryavtseva,
  • Vyacheslav S. Fedorov,
  • Natalia F. Zakirova,
  • Michail V. Golikov,
  • Sergey N. Kochetkov,
  • Birke Bartosch and
  • Vladimir T. Valuev-Elliston
  • + 1 author

21 April 2023

Reactive oxygen species (ROS) play a major role in the regulation of various processes in the cell. The increase in their production is a factor contributing to the development of numerous pathologies, including inflammation, fibrosis, and cancer. Ac...

  • Article
  • Open Access
1 Citations
3,120 Views
14 Pages

Downregulation of Bmal1 Expression in Celiac Ganglia Protects against Hepatic Ischemia-Reperfusion Injury

  • Jiarui Feng,
  • Lilong Zhang,
  • Enfu Xue,
  • Zhendong Qiu,
  • Ning Hu,
  • Kunpeng Wang,
  • Yingru Su and
  • Weixing Wang

21 April 2023

Hepatic ischemia-reperfusion injury (HIRI) significantly contributes to liver dysfunction following liver transplantation and hepatectomy. However, the role of the celiac ganglion (CG) in HIRI remains unclear. Adeno-associated virus was used to silen...

  • Review
  • Open Access
7 Citations
3,876 Views
18 Pages

21 April 2023

Connexins are members of a family of integral membrane proteins that provide a pathway for both electrical and metabolic coupling between cells. Astroglia express connexin 30 (Cx30)-GJB6 and Cx43-GJA1, while oligodendroglia express Cx29/Cx31.3-GJC3,...

  • Article
  • Open Access
8 Citations
5,336 Views
21 Pages

A Soluble Platelet-Derived Growth Factor Receptor-β Originates via Pre-mRNA Splicing in the Healthy Brain and Is Upregulated during Hypoxia and Aging

  • Laura Beth Payne,
  • Hanaa Abdelazim,
  • Maruf Hoque,
  • Audra Barnes,
  • Zuzana Mironovova,
  • Caroline E. Willi,
  • Jordan Darden,
  • Clifton Houk,
  • Meghan W. Sedovy and
  • Scott R. Johnstone
  • + 1 author

21 April 2023

The platelet-derived growth factor-BB (PDGF-BB) pathway provides critical regulation of cerebrovascular pericytes, orchestrating their investment and retention within the brain microcirculation. Dysregulated PDGF Receptor-beta (PDGFRβ) signaling...

  • Review
  • Open Access
4 Citations
7,060 Views
16 Pages

21 April 2023

Given the key role played by ClC-K chloride channels in kidney and inner ear physiology and pathology, they can be considered important targets for drug discovery. Indeed, ClC-Ka and ClC-Kb inhibition would interfere with the urine countercurrent con...

  • Review
  • Open Access
69 Citations
25,351 Views
20 Pages

Vitamin D and Autoimmune Rheumatic Diseases

  • Lambros Athanassiou,
  • Ifigenia Kostoglou-Athanassiou,
  • Michael Koutsilieris and
  • Yehuda Shoenfeld

21 April 2023

Vitamin D is a steroid hormone with potent immune-modulating properties. It has been shown to stimulate innate immunity and induce immune tolerance. Extensive research efforts have shown that vitamin D deficiency may be related to the development of...

  • Article
  • Open Access
16 Citations
3,390 Views
14 Pages

Skeletal Muscle Atrophy Induced by Diabetes Is Mediated by Non-Selective Channels and Prevented by Boldine

  • Luis A. Cea,
  • Walter Vásquez,
  • Romina Hernández-Salinas,
  • Alejandra Z. Vielma,
  • Mario Castillo-Ruiz,
  • Victoria Velarde,
  • Magdiel Salgado and
  • Juan C. Sáez

21 April 2023

Individuals with diabetes mellitus present a skeletal muscle myopathy characterized by atrophy. However, the mechanism underlying this muscular alteration remains elusive, which makes it difficult to design a rational treatment that could avoid the n...

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Biomolecules - ISSN 2218-273X