Retraction

    Insights

    This study on Alzheimer's disease is retracted due to data irregularities. The article investigated microRNA-186's effect on neuronal oxidative stress, but image data was found duplicated in other contexts, invalidating the findings.

    Area of Science:

    • Neuroscience
    • Molecular Biology
    • Genetics

    Context:

    • Alzheimer's disease (AD) is a neurodegenerative disorder characterized by oxidative stress and neuronal injury.
    • MicroRNAs (miRNAs) play crucial roles in regulating gene expression and cellular processes relevant to AD pathogenesis.
    • The Janus Kinase-Signal Transducer and Activator of Transcription (JAK-STAT) pathway is implicated in neuroinflammation and neuronal survival.

    Purpose:

    • To investigate the effect of microRNA-186 (miR-186) on oxidative stress injury in neurons.
    • To explore the potential mechanism involving the targeting of Interleukin-2 (IL-2) via the JAK-STAT pathway.
    • To evaluate these effects in a rat model of Alzheimer's disease.

    Summary:

    • The retracted article proposed that microRNA-186 modulates neuronal oxidative stress in an Alzheimer's disease rat model.
    • It suggested a mechanism where miR-186 targets Interleukin-2, thereby influencing the JAK-STAT signaling pathway.
    • The study aimed to elucidate the role of this specific miRNA in the context of AD-related neuronal damage.

    Impact:

    • The findings, if valid, could have offered insights into novel therapeutic targets for Alzheimer's disease by modulating miRNA and cytokine signaling.
    • Understanding the interplay between miR-186, IL-2, and the JAK-STAT pathway could inform future research directions in neuroprotection.
    • However, the retraction due to duplicated image data invalidates these potential implications and necessitates caution in citing this work.

    Related Concept Videos

    Clot Retraction and Fibrinolysis01:16

    Clot Retraction and Fibrinolysis

    After a fibrin clot is formed, the next step is clot retraction, a vital process facilitated by platelet contractile proteins, such as actin and myosin. These proteins pull the fibrin strands closer together and condense the clot. This action reduces the size of the clot, creating a smaller, denser structure that effectively seals off the damaged vessel. Clot retraction consolidates the clot and helps with wound healing by bringing the edges of the damaged blood vessel closer together.
    7.5K
    Somatic Spinal Reflexes01:22

    Somatic Spinal Reflexes

    Somatic spinal reflexes are rapid, involuntary muscular responses to external stimuli that involve the somatic musculature and the spinal cord.
    One of the most well-known somatic spinal reflexes is the stretch reflex, which is activated by the sudden stretching of a muscle. This reflex involves the activation of specialized sensory receptors called muscle spindles, which are located in the muscle tissue and detect changes in the length and speed of muscle contractions. When a muscle is suddenly...
    3.2K
    Cell Motility through Blebbing01:16

    Cell Motility through Blebbing

    Blebs are a type of membrane protrusion formed by the internal hydrostatic pressure of the cytoplasm. Blebs are observed in several cell types, including fibroblasts, immune cells, and single-celled organisms like the amoeba. The primary function of blebs is cell locomotion and apoptosis, but they are also found during necrosis and cell division. The life cycle of a bleb comprises an initiation phase followed by the expansion and retraction phases.
    Blebbing Through the Matrix
    In multicellular...
    2.2K
    Relaxation of Skeletal Muscles01:29

    Relaxation of Skeletal Muscles

    The period of muscle contraction primarily influences the duration of stimulation at the neuromuscular junction (NMJ), the presence of free calcium ions in the sarcoplasm, and the availability of energy or ATP to support contractions.
    When an action potential reaches the axon terminal, it depolarizes the membrane and opens voltage-gated sodium channels. Sodium ions enter the cell, further depolarizing the presynaptic membrane. This depolarization causes voltage-gated calcium channels to open....
    4.7K
    Types of Membrane Protrusions01:28

    Types of Membrane Protrusions

    The protrusion of the cell surface is an initial step for several cellular processes, including cell migration, phagocytosis, and neurite outgrowth. These membrane protrusions are a result of cytoskeletal rearrangement. The most  widely observed cell protrusions include lamellipodia, pseudopodia, filopodia, microvilli, invadopodia, and podosomes. These protrusions can be of two types — static or dynamic.
    The microvilli, an example of stable protrusions, are finger-like projections...
    3.2K
    GPCR Desensitization01:12

    GPCR Desensitization

    G protein-coupled receptor (GPCR) signaling plays a crucial role in cell functioning. GPCR desensitization is an equally essential process. It allows cells to respond to changing environments and regain sensitivity to new stimuli while preventing unnecessary stimulation when no longer needed. Prolonged exposure to stimuli leads to GPCR desensitization. It involves blocking the receptors from binding and activating additional G proteins. This inhibits activation of downstream effectors, thereby...
    6.9K