Publications by authors named "Hong Shijun"

Methamphetamine (METH), a synthetic stimulant, has seen an escalating abuse situation globally over the past decade. Although the molecular mechanism underlying METH-induced neurotoxicity has been explored, the dysfunction of brain-derived neurotrophic factor (BDNF) neuroprotection in the context of METH neurotoxicity remains insufficiently understood. Our previous studies have found that METH induced neurotoxicity and BDNF expression in rat primary neurons, necessitating further research into this paradox.

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  • Methamphetamine (MA) is a widely abused stimulant that causes neurotoxicity through oxidative stress and apoptosis, particularly affecting dopaminergic neurons.
  • The study investigated how MA influences various proteins related to neuroprotection (Nrf2), mitochondrial dynamics (Mfn1, Drp1), and apoptosis (Caspase 3) in brain tissue of MA users and a rat model.
  • Results showed that levels of Nrf2 and Mfn1 decreased while levels of Drp1, Cyt-c, and Caspase 3 increased in MA users, suggesting that Nrf2 may be crucial in mediating the harmful effects of MA on neurons through oxidative stress and mitochondrial dysfunction.
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  • Methamphetamine (MA) abuse leads to serious cardiovascular issues, making myocardial injury and oxidative stress key concerns, with the Nrf2 pathway playing a crucial role in these processes.
  • In an experiment, MA was administered to mice, resulting in significant increases in markers of cardiac injury and oxidative stress, highlighting the harmful effects of MA on the heart.
  • Activation of the Nrf2 pathway reduced the damage caused by MA, while knocking out Nrf2 worsened the injury, indicating that Nrf2 has a protective role against MA-induced heart damage.
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Methamphetamine (METH) is a highly addictive psychostimulant and one of the most widely abused drugs worldwide. The continuous use of METH eventually leads to neurotoxicity and drug addiction. Studies have shown that neurotoxicity is strongly associated with METH-induced neuroinflammation, and microglia are the key drivers of neuroinflammation.

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  • - The study focuses on the combined abuse of methamphetamine (MA) and ketamine (KET), highlighting a lack of research into the mechanisms behind their combined addiction.
  • - A rat model was used to assess the roles of various neurotransmitters and receptors (dopamine, serotonin, MAO, GluR1, GluR2) related to MA and KET addiction, using techniques like ELISA and western blotting.
  • - Results indicate that both drugs can induce a conditioned place preference (CPP) in rats, with KET enhancing this effect and affecting the levels of specific neurotransmitters, suggesting a complex role of KET in MA addiction that can be both addictive and anti-addictive.
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Methamphetamine (MA) is a widely abused drug that can cause kidney damage. However, the molecular mechanism remains unclear. Nuclear factor erythroid 2-related factor 2 (Nrf2) is a key transcription factor that regulates resistance to oxidative and proteotoxic stress.

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Schizophrenia (SCZ) is a debilitating neuropsychiatric disorder with a complex aetiology. Cognitive symptoms and hippocampal changes have been implicated in the pathophysiology of SCZ. Changes in metabolites level and up-regulated glycolysis have been reported in previous studies, which may be related to the hippocampal dysfunction in SCZ.

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Background: Methamphetamine (MA) abuse is a major global public health problem. However, it is not yet known whether cannabidiol (CBD) has protective effects on MA-induced cardiotoxicity. The present study investigated whether CBD has protective effects on MA-induced cardiac damage in rats via the protein kinase A/cyclic adenosine monophosphate (cAMP)-response element-binding protein (PKA/CREB) pathway.

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Methamphetamine (METH) is a psychostimulant that is abused throughout the world. METH is a highly addictive drug commonly used by persons living with HIV, and its use can result in cognitive impairment and memory deficits. METH and human immunodeficiency virus-1 transactivator of transcription (HIV-1Tat) have toxic and synergistic effects on the nervous system; however, the mechanism of their synergistic effects has not been clarified.

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Article Synopsis
  • Methamphetamine (METH) abuse has rapidly increased in recent years, leading to severe addiction and neurotoxicity, with no approved treatments currently available.
  • Cannabidiol (CBD), a non-psychoactive compound from cannabis, shows promise in protecting against METH's harmful effects by counteracting neurotoxic mechanisms, though its exact action is still unclear.
  • Research indicates that CBD and METH may bind to the dopamine receptor D1 (DRD1), with CBD potentially blocking METH's damaging impacts on cell signaling and apoptosis, offering insight into a possible therapeutic strategy for METH use disorders.
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  • The drug problem is a significant global issue impacting economic growth, social stability, and public health, with a rising prevalence of synthetic drugs like methamphetamine.
  • Recent studies are vital for understanding the extent of methamphetamine abuse, focusing on its epidemiology, monitoring technologies, and health effects.
  • The article reviews various aspects of methamphetamine research, including toxicity, withdrawal treatments, clinical comorbidities, and advancements in testing technologies.
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  • The study focuses on the complex alterations in the dopamine system related to methamphetamine (METH) addiction and explores cannabidiol (CBD) as a potential treatment since current options are lacking.
  • Researchers examined how CBD affects the dopamine receptor D1 (DRD1) and associated signaling pathway, which is implicated in METH-induced dopamine release.
  • Findings show that METH enhances dopamine release and related proteins, changes that are inhibited by CBD, suggesting that CBD may have therapeutic potential for treating METH-related disorders by targeting this specific signaling pathway.
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In order to realize calibration model transfer of near infrared (NIR) spectra without standards, scale invariant feature transform (SIFT) algorithm was applied to extract characteristic spectral points of NIR spectra in this study. Three sets of spectral points were selected by SIFT from the spectra of precision detection (SPD) of a radix scutellariae sample by continuously testing the sample three times. Aiming at obtaining high consistency of the three sets, the orthogonal table L9 (3) was used to optimize the parameters of SIFT.

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Context: MicroRNA (miRNA) is an important regulator of gene expression. Methamphetamine (METH) induces a variety of alterations in different systems by affecting gene expression, but the effects of METH on miRNA profiles need to be elucidated.

Objectives: This study develops a rat model of METH addiction, and analyzes the expression profile alterations of miRNA in nucleus accumbens (NAc) of the METH-addicted rats.

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Schizophrenia is a severe chronic neuropsychiatric disorder, and its exact pathogenesis remains unclear. This study investigated the effect of ketamine on the expression of ErbB4 (considered a schizophrenia candidate gene) in the hippocampus and prefrontal cortex of rats. Rats were randomly divided into four groups: control, low-dose, medium-dose and high-dose groups.

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To investigate the effects of gastrodin (GAS) on methamphetamine (MA)-induced conditioned place preference (CPP) in rats and explore its potential mechanisms. MA (10 mg/kg) was initially injected intraperitoneally (i.p.

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Previous studies have revealed that long intergenic non-coding RNA for kinase activation (LINK-A), a long non-coding RNA (lncRNA) promotes disease progression in triple-negative breast cancer by activating hypoxia-inducible factor 1α (HIF1α). However, the activation of HIF1α has also been demonstrated to improve diabetic nephropathy. It is therefore reasonable to expect that LINK-A may also participate in diabetic nephropathy.

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  • Methamphetamine (METH) causes brain cell damage and dysfunction, with previous studies suggesting that autophagy plays a role in this neurotoxic effect.
  • The study explores the impact of METH on the autophagy-related proteins LC3B and Beclin-1 in SH-SY5Y cells and investigates the potential protective effects of gastrodin, a compound from traditional Chinese medicine.
  • Results show that METH increases levels of autophagy markers, but gastrodin significantly reduces these levels, suggesting it might be helpful in developing treatments for METH-related brain damage.
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  • - This study investigates how the long non-coding RNA (LncRNA) HOTAIR impacts renal interstitial fibrosis (RIF) by regulating the Notch1 pathway through miR-124 modulation.
  • - The researchers used a rat model and HK-2 cell experiments to compare different treatment groups, measuring expressions of HOTAIR, miR-124, Notch1, and proteins related to epithelial-to-mesenchymal transition (EMT).
  • - Results showed that silencing HOTAIR enhanced miR-124 levels, inhibited the Notch1 pathway, decreased key fibrosis-related proteins, and reduced EMT, highlighting HOTAIR's potential as a target for RIF treatment.
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  • * Toxicological tests showed extremely high histamine levels in the crab and the mother's intestinal content, indicating severe poisoning.
  • * Investigations concluded that the crabs were spoiled, confirming that the mother's death was due to lethal histamine intoxication.
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Objectives: To observe the changes of adenylate cyclase (AC) and guanylate cyclase (GC) in the cerebral regions including the locus ceruleus, periaqueductal gray, and substantia nigra in rats that were physiologically dependent on morphine. We also investigated the relationship of enzymatic changes in these cerebral regions to the mechanism of morphine dependence.

Methods: A morphine-dependent rat model was established and withdrawal symptoms evaluated.

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Objective: To observe the changes of adenylate cyclase(AC) on cerebral regions related to morphine dependence in rats and investigate the relationship between the enzymological changes and the mechanism of morphine dependence.

Methods: The technique of enzyme-histochemistry was used to detect the variations of AC of special seven cerebral regions including frontalis cortex, lenticula, corpus amygdaloideun, substantia nigra, hippocampus, periaqueductal gray and locus coerleus in morphine dependent rats. The enzymological changes were observed by optical microscope.

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The mechanism of morphine dependent is a complex Procedure. It involves in many complex mechanisms such as the ultra-structure of synapse of special brain areas, neurotransmitter, enzymology, and so on. These mechanisms have closely correlation.

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