Publications by authors named "In-Ae Chang"

Aberrant regulation of the long non-coding RNA SRY-box transcription factor 2 overlapping transcript (SOX2OT) has been reported in various diseases including gastric cancer (GC). However, an association between the well-studied rs9839776 single nucleotide polymorphism in SOX2OT and GC susceptibility has not been reported. This study aimed to evaluate the association between the rs9839776 single nucleotide polymorphism in SOX2OT and GC risk.

View Article and Find Full Text PDF

The (leptin receptor) genotype is associated with obesity. Gut microbiome composition differs between obese and non-obese adults. However, the impact of genotype on gut microbiome composition in humans has not yet been studied.

View Article and Find Full Text PDF

Background: Metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) drives tumorigenesis of various human cancers. However, the association between MALAT1 variants and gastric cancer (GC) risk is unknown. We performed a case-control study to evaluate the possible association between rs619586 and rs3200401 SNPs in MALAT and GC risk.

View Article and Find Full Text PDF

Purpose: Gastric cancer (GC) is one of the most common cancers in the world. Recently, several studies have suggested that single-nucleotide polymorphisms (SNPs) of long noncoding RNA (lncRNA) are associated with GC risk. However, the association of the lncRNA highly upregulated in liver cancer () SNP with GC risk is not yet known.

View Article and Find Full Text PDF

We evaluated the association between prostate cancer non-coding RNA 1 () polymorphisms and the risk of developing gastric cancer (GC) and GC subgroups in Korea. A case-control study was conducted with 437 GC patients and 357 healthy controls using a TaqMan genotyping assay. A chi-squared test, binary logistic regression, and genetic models were used to explore the association between five polymorphisms and GC risk.

View Article and Find Full Text PDF

Several isoforms of integrin subunits are expressed in Schwann cells and mediate Schwann cell interactions with axons. Here, we identify α6 and β1 integrins as heterodimeric proteins expressed in Schwann cells and define their functions in axonal regeneration. α6 and β1 integrins are induced in Schwann cells in the sciatic nerve after a crush injury, and the blocking of integrin activity by siRNA expression and by treatment with anti-integrin antibodies attenuates Schwann cell contact with cultured neurons and decreases neurite outgrowth.

View Article and Find Full Text PDF

Ethnopharmacological Relevance: Buyang Huanwu decoction (BYHWD) has been used in the traditional Chinese medicine for the treatment of cardiovascular and neurological symptoms, and recent experimental studies have begun to provide evidence showing its protective effects on neural cells. Yet, its function for the regenerative responses of axons in the peripheral nerve after injury is not known.

Aim Of The Study: The primary objective of the present study was to explore that BYHWD is involved in growth-promoting activity of the peripheral nerve axons after injury.

View Article and Find Full Text PDF

Background: Bogijetong decoction (BGJTD) is a herbal drug formulation used in the traditional Asian medicine to treat neuropathic insults associated with diabetes and anticancer therapy. To understand the biological basis of BGJTD on protective effects against neuropathy, we investigated physiological and biochemical responses of the sciatic nerves deranged by taxol injection or crush injury in the rats.

Methods: Dissociated Schwann cells and neurons were prepared from the sciatic nerve and dorsal root ganglia (DRG) respectively and were treated with taxol and BGJTD.

View Article and Find Full Text PDF
Article Synopsis
  • * Researchers developed three recombinant antigens (cr56, r21, kr56) to detect antibodies against the scrub typhus-causing bacteria.
  • * Testing showed these antigens provide a high sensitivity and specificity (up to 99%) in diagnosing scrub typhus through methods like ELISA and rapid diagnostic tests.
View Article and Find Full Text PDF

Although recent studies report that combined treatment of herbal drugs with acupuncture can improve clinical efficacy in traditional oriental medicine, experimental evidence that supports this pharmacopuncture therapy is rare thus far. Here, we investigated the effects of the herbal drug recipe Sciatica 5 (SCTA5) and acupuncture stimulation on gall bladder 30 (GB30) on regenerative responses of injured sciatic nerve in rats. Treatment of cultured dorsal root ganglion (DRG) neurons with SCTA5 improved neurite outgrowth.

View Article and Find Full Text PDF

Migrating activity of reactive astrocytes induced after spinal cord injury (SCI) controls glial scar formation by limiting inflammatory responses around the injury area, and, therefore, can be beneficial for regenerative responses of spinal axons. Recently, we found that cell division cycle 2 (cdc2) activity in primary astrocytes facilitated neurite outgrowth of co-cultured neurons. Here, we investigated the effects of cdc2 activity on regenerative processes in vivo after SCI.

View Article and Find Full Text PDF

Following spinal cord injury, glial cells are recognized as major environmental factors hampering axon's regenerative responses. However, recent studies suggested that, in certain circumstances, reactive astrocytes may have a permissive role for axonal regeneration and functional recovery. Here, we report that Cdc2 activation in astrocytes is positively linked to axon growth.

View Article and Find Full Text PDF

Although preconditioning injury on the peripheral nerve induces axonal regenerative capacity in neurons, it is not known whether similar lesion effects occur in glial cells. Here we demonstrate that Schwann cells are activated by peripheral nerve preinjury and primed to mediate axon regeneration. Cdc2, which was induced from Schwann cells after sciatic nerve injury, phosphorylated vimentin almost exclusively in the distal nerve area.

View Article and Find Full Text PDF

The activation of macrophages by microorganisms plays an important role in host defense and immunopathology. Loranthi ramulus (LR) is commonly used as a traditional drug and health food in Korea. Here, we investigated the regulatory effects of LR on macrophage-mediated immune responses.

View Article and Find Full Text PDF

The aqueous extract of Mori Fructus (MF) exerts a change of phenotype and a cytoprotective effect in macrophages. The present study was carried out to investigate the immunomodulating activity of MF on the expression of nitric oxide (NO), tumor necrosis factor alpha (TNF-alpha), co-stimulatory molecules and also interferon-gamma (IFN-gamma) in macrophages and splenocytes. Toll-like receptor 4 (TLR4) is a promising molecular target for immune-modulating drugs.

View Article and Find Full Text PDF

Proliferation of Schwann cells in the injured peripheral nerve supports axonal regeneration, and physical training in experimental animals has been shown to promote nerve regeneration. Extracellular signal-regulated kinase 1/2 (ERK1/2) activity can mediate neuronal responses to lesion signals, but its role in non-neuronal cells in the injured area is largely unknown. Here we report that treadmill training (TMT) facilitates axonal regeneration via the upregulation of phospho-ERK1/2 protein levels in Schwann cells in the injured sciatic nerve.

View Article and Find Full Text PDF

Hydroxy fatty acids (HFAs), originally found in small amount mainly from plant systems, are well known to have special properties such as higher viscosity and reactivity compared with other normal fatty acids. Recently, various microbial strains were tested to produce HFAs from different unsaturated fatty acids. Among those microbial strains tested, Pseudomonas aeruginosa PR3 are well known to utilize various unsaturated fatty acids to produce mono-, di-, and tri-HFAs.

View Article and Find Full Text PDF

Hydroxy fatty acids (HFA) have gained importance because of their special properties such as higher viscosity and reactivity compared with other non-hydroxy fatty acids. The bacterial isolate Pseudomonas aeruginosa (PR3) was reported to produce mono-, di-, and trihydroxy fatty acids from different unsaturated fatty acids. Of those, 7,10-dihydroxy-8(E)-octadecenoic acid (DOD) was produced with high yield from oleic acid by PR3.

View Article and Find Full Text PDF