Publications by authors named "Haigang Chang"

Article Synopsis
  • REEP4 plays a key role in mitosis regulation and has been linked to the malignant process of lower grade glioma (LGG), a type of brain tumor with mitosis abnormalities.
  • Analysis of patient data revealed that higher REEP4 expression, coupled with low methylation at a specific site, correlates with a lower survival rate for LGG patients and indicates involvement in various cancer-related signaling pathways.
  • This study is the first to highlight REEP4's significance in malignant tumors, suggesting it could serve as an independent risk factor and a potential target for anti-tumor therapies.
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Background: The WD40 repeat (WDR) domain provides scaffolds for numerous protein-protein interactions in multiple biological processes. WDR domain 76 (WDR76) has complex functionality owing to its diversified interactions; however, its mechanism in LGG has not yet been reported.

Methods: Transcriptomic data from public databases were multifariously analyzed to explore the role of WDR76 in LGG pathology and tumor immunity.

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Background: At present, studies regarding the efficacy and safety of tenecteplase for the treatment of patients with acute ischemic stroke (AIS) are still limited and inconsistent. The purpose of this systematic review and meta-analysis is to compare the efficacy and safety of tenecteplase with alteplase for the treatment of AIS patients.

Methods: Literature search was conducted in PubMed, Embase, and Cochrane Library up to May 10, 2022.

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Autism spectrum disorder (ASD) is a lifelong neurodevelopmental condition characterized by impaired social interaction, compromised communication, and restrictive or stereotyped behaviours and interests. Due to the complex pathophysiology of ASD, there are currently no available medical therapies for improving the associated social deficits. Consequently, the present study investigated the effects of STX209, a selective γ‑aminobutyric acid type B receptor (GABABR2) agonist, on an environmental rodent model of autism.

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Exendin-4 (Ex4), a long-lasting glucagon-like peptide-1 analog, was reported to exert favourable actions on inhibiting cocaine-associated rewarding and reinforcing effects of drug in animal models of addiction. However, the therapeutic potential of different dose of GLP-1 receptor agonist Ex4 in different behavioral paradigms and the underlying pharmacological mechanisms of action are incompletely understood. Herein, we firstly investigated the effects of Ex4 on cocaine-induced condition place preference (CPP) as well as extinction and reinstatement in male C57BL/6J mice.

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Deep brain stimulation (DBS) modulates the neuronal activity in specific brain circuits and has been recently considered as a promising intervention for refractory addiction. The insula cortex is the hub of interoception and is known to be involved in different aspects of substance use disorder. In the present study, we investigate the effects of continuous high frequency DBS in the anterior insula (AI) on drug-seeking behaviors and examined the molecular mechanisms of DBS action in morphine-addicted rats.

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Environmental cues associated with drug abuse are powerful mediators of drug craving and relapse in substance-abuse disorders. Consequently, attenuating the strength of cue-drug memories could reduce the number of factors that cause drug craving and relapse. Interestingly, impairing cue-drug memory reconsolidation is a generally accepted strategy aimed at reducing the intensity of cues that trigger drug-seeking and drug-taking behaviors.

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Mutations in γ-aminobutyric acid A receptor (GABA) subunits and sodium channel genes, especially GABRG2 and SCN1A, have been reported to be associated with febrile seizures (FS) and genetic epilepsy with febrile seizures plus (GEFS+). GEFS+ is a well-known family of epileptic syndrome with autosomal dominant inheritance in children. Its most common phenotypes are febrile seizures often with accessory afebrile generalized tonic-clonic seizures, febrile seizures plus (FS+), severe epileptic encephalopathy, as well as other types of generalized or localization-related seizures.

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Glioma is the most aggressive malignant tumor in the adult central nervous system. Abnormal long noncoding RNA (lncRNA) FOXD2-AS1 expression was associated with tumor development. However, the possible role of FOXD2-AS1 in the progression of glioma is not known.

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Objective: To prepare transferrin modified artesunate nanoliposomes (Tf-ART-LPs) and study their glioma U87 cells-targeting treatment in-vitro and in-vivo.

Methods: Ammonium sulfate transmembrane gradient method was used to prepare Tf-ART-LPs, whose size and stability was detected by a Nanosizer. Besides, the encapsulation efficiency and release rate of artesunate (ART) were tested by a ultraviolet spectrophotometer.

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Objective: To investigate the effect of isoliquiritigenin on the activity of DNA topoisomerase (TOP I) and its inhibitory effect on the growth of U87 glioma cells.

Methods: This study investigated the inhibitory effect of isoliquiritigenin on the growth of U87 glioma cells and its cytotoxicity by MTT method and determined the effect of isoliquiritigenin on TOP I activity by agarose gel electrophoresis. On this basis, we studied the interaction between isoliquiritigenin and TOP I and DNA.

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Objective: This prospective cohort-designed study was performed to verify whether higher levels of serum lipoprotein(a) (Lp(a)) could be a risk factor for deep vein thrombosis (DVT) in Chinese patients with spinal cord injuries (SCI).

Methods: During 2013-2014, consecutive patients with first-ever SCI were recruited and assessed for DVT using color Doppler ultrasonography for 15 days after injury and whenever clinically requested. Using logistic regression models, multivariate analyses were performed.

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Asymmetric dimethylarginine (ADMA) is emerging as a key contributor to endothelial dysfunction. The drug probucol was reported to have an anti-lipid peroxidation effect and improve endothelial dilation function. But little is known about the protective effect of probucol on ADMA-induced human brain microvascular endothelial cell (HBMEC) injury and its underlying mechanisms.

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Previous studies show that transient axonal glycoprotein-1, a ligand of amyloid precursor protein, increases the secretion of amyloid precursor protein intracellular domain and is involved in apoptosis in Alzheimer's disease. In this study, we examined the effects of transient axonal glycoprotein-1 on U251 glioma cells. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay showed that transient axonal glycoprotein-1 did not inhibit the proliferation of U251 cells, but promoted cell viability.

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The aim of the present study was to investigate the effects of ulinastatin on cerebral oxygen metabolism and C-reactive protein (CRP) levels in patients with severe traumatic brain injury (sTBI). A total of 92 patients with sTBI, admitted to the First Affiliated Hospital of Xinxiang Medical University (Xinxiang, China), were randomly divided into control and observation groups. The control group received conventional therapy plus a placebo (0.

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We conducted a case-control study to assess the role of three single-nucleotide polymorphisms (SNPs) in excision repair cross-complementation group 1 (ERCC1) and two SNPs in excision repair cross-complementation group 2 (ERCC2) on the glioma risk in a Chinese population, and investigate the gene-environmental interaction for the cancer risk. A 1:2 matched case-control study was conducted. Logistic regression analysis revealed that individuals carrying ERCC1 rs2298881 CC genotype were associated with risk of glioma when compared with AA genotype carriers.

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Objective: Functional neuroimaging techniques act as the navigator to assess changes in brain activity induced by repetitive transcranial magnetic stimulation (rTMS) in rTMS studies. The aim of this study was to investigate the feasibility of using manganese-enhanced magnetic resonance imaging (MEMRI) to measure the brain activity in rTMS studies.

Methods: Eighteen Wistar rats were randomized into three groups (n = 6) including a high rTMS group, a low rTMS group and a sham stimulation group (controls).

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This study further investigates the influence of temporarily disrupting the blood-brain barrier (BBB) on the level of manganese used in AIM fMRI other than the recognized function of allowing that substance to enter into the activated brain regions more effectively during the BBB opening. We injected manganese into Wistar rats through ICA following the disruption of BBB with mannitol in a functional MRI test of the visual cortex. Through comparing MRI signal intensity and manganese contents in the visual cortex of rats received visual stimuli of unequal degree after the restoration of BBB, we found that the signal in the visual cortex could be further enhanced on T1WI given visual stimulation after the restoration of BBB.

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