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Laboratory Animal Research

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https://www.readbyqxmd.com/read/28400838/hemohim-a-herbal-preparation-alleviates-airway-inflammation-caused-by-cigarette-smoke-and-lipopolysaccharide
#1
Na-Rae Shin, Sung-Ho Kim, Je-Won Ko, Sung-Hyeuk Park, In-Chul Lee, Jung-Min Ryu, Jong-Choon Kim, In-Sik Shin
HemoHIM, herbal preparation has designed for immune system recovery. We investigated the anti-inflammatory effect of HemoHIM on cigarette smoke (CS) and lipopolysaccharide (LPS) induced chronic obstructive pulmonary disease (COPD) mouse model. To induce COPD, C57BL/6 mice were exposed to CS for 1 h per day (eight cigarettes per day) for 4 weeks and intranasally received LPS on day 26. HemoHIM was administrated to mice at a dose of 50 or 100 mg/kg 1h before CS exposure. HemoHIM reduced the inflammatory cell count and levels of tumor necrosis factor receptor (TNF)-α, interleukin (IL)-6 and IL-1β in the broncho-alveolar lavage fluid (BALF) induced by CS+LPS exposure...
March 2017: Laboratory Animal Research
https://www.readbyqxmd.com/read/28400837/immunomodulatory-effects-of-ethanol-extract-of-germinated-ice-plant-mesembryanthemum-crystallinum
#2
Joo-Hee Choi, Sung-Gang Jo, Seoung-Ki Jung, Woo-Tae Park, Keun-Young Kim, Yong-Wook Park, Jong-Hwan Park
The purpose of this study was to investigate the immunomodulatory activity of ice plant (Mesembryanthemum crystallinum) extract (IPE) in vitro and in vivo. Raji (a human B cell line) and Jurkat (a human T cell line) cells were treated with various doses of IPE and cell proliferation was measured by WST assay. Results showed that IPE promoted the proliferation of both Raji and Jurkat cells in a dose-dependent manner. IPE also enhanced IL-6 and TNF-α production in macrophages in the presence of lipopolysaccharide (LPS), although IPE alone did not induce cytokine production...
March 2017: Laboratory Animal Research
https://www.readbyqxmd.com/read/28400836/effects-of-coenzyme-q10-on-the-antioxidant-system-in-sd-rats-exposed-to-lipopolysaccharide-induced-toxicity
#3
Min-Hae Song, Ha-Na Kim, Yong Lim, In-Surk Jang
The study was performed to see the effects of coenzyme Q10 (CoQ10) on blood biochemical components and hepatic antioxidant system in rats exposed to lipopolysaccharide (LPS)-induced toxicity. A total of 24 rats were allocated to four groups: control (CON), 100 mg/kg BW of LPS (LPS), 100 mg of CoQ10/kg BW with LPS (LCQI) and 300 mg of CoQ10/kg BW with LPS (LCQII). The LPS and LCQI groups showed a significant (P<0.05) increase in the relative spleen weight compared with the CON group without affecting body and liver weights...
March 2017: Laboratory Animal Research
https://www.readbyqxmd.com/read/28400835/the-effects-of-pentoxifylline-adminstration-on-fracture-healing-in-a-postmenopausal-osteoporotic-rat-model
#4
Mohammad Mahdi Vashghani Farahani, Reza Ahadi, Mohammadamin Abdollahifar, Mohammad Bayat
Previous studies report positive effects of pentoxifylline (PTX) alone or in combination with other drugs on some pathologic bone diseases as well as an ability to accelerate osteogensis and fracture healing in both animal models and human patients. The aim of this present study was to evaluate the effects of PTX administration on Hounsfield unit and bone strength at catabolic response (bone resorbing) of a fracture in an experimental rat model of ovariectomy induced osteoporosis (OVX-D). Thirty adult female rats were divided into groups as follows: 1 (OVX, control, no treatment); 2 (OVX, sham: daily distilled water); 3 (OVX, daily alendronate: 3 mg/kg); 4 (OVX, twice daily 100 mg/kg PTX) and 5 (OVX, PTX+alenderonate)...
March 2017: Laboratory Animal Research
https://www.readbyqxmd.com/read/28400834/comparison-of-commonly-used-icr-stocks-and-the-characterization-of-korl-icr
#5
Hye-Jun Shin, Young Min Cho, Hee Jung Shin, Hae Deun Kim, Kyung Min Choi, Mi Gyeong Kim, Hyoung Doo Shin, Myeon-Woo Chung
Mouse is a commonly used animal in life science studies and is classified as outbred if genetically diverse and inbred if genetically homogeneous. Outbred mouse stocks, are used in toxicology, oncology, infection and pharmacology research. The National Institute of Food and Drug Safety Evaluation (NIFDS; former the Korea National Institute of Health) have bred ICR mice for more than 50 years. We investigated to provide users with information and promote accountability to the Korl:ICR. To secure the indigenous data, biological characteristics of Korl:ICR were identified by comparing with other ICR stocks...
March 2017: Laboratory Animal Research
https://www.readbyqxmd.com/read/28400833/over-expression-of-myosin7a-in-cochlear-hair-cells-of-circling-mice
#6
Yoo Yeon Kim, Hajin Nam, Harry Jung, Boyoung Kim, Jun Gyo Suh
Circling mouse (C57BL/6J-cir/cir) deleted the transmembrane inner ear (Tmie) gene is an animal model for human non-syndromic recessive deafness, DFNB6. In circling mouse, hair cells in the cochlea have degenerated and hair bundles have become irregularity as time goes on. Tmie protein carries out a function of the mechanoelectrical transduction channel in cochlear hair cells. Myosin7a (MYO7A) protein has key roles in development of the cochlear hair bundles as well as in the function of cochlear hair cells...
March 2017: Laboratory Animal Research
https://www.readbyqxmd.com/read/28053621/clinical-and-magnetic-resonance-imaging-features-of-compressive-cervical-myelopathy-with-traumatic-intervertebral-disc-herniation-in-cynomolgus-macaque-macaca-fascicularis
#7
Yun-Jung Choi, Hye-Jin Park, Chul-Ho Sohn, Kyeong Cheon Jung, Seong Hoe Park, Jae-Il Lee
Intervertebral disc herniation (IVDH) with nucleus pulposus extrusion, traumatic or not, is a devastating clinical condition accompanied by neurological problems. Here we report a cynomolgus macaque suffering from acute and progressive neurological dysfunction by a blunt trauma due to neck collar, an animal handling device. Tetraplegia, urinary incontinence, decreased proprioception, and imperception of pain were shown on physical and neurological examinations. MRI sagittal T2 weighted sequences revealed an extensive protrusion of disc material between C2 and C3 cervical vertebra, and this protrusion resulted in central stenosis of the spinal cord...
December 2016: Laboratory Animal Research
https://www.readbyqxmd.com/read/28053620/establishment-of-a-surgically-induced-cryptorchidism-canine-recipient-model-for-spermatogonial-stem-cell-transplantation
#8
Won-Young Lee, Ran Lee, Hyuk Song, Tai-Young Hur, Seunghoon Lee, Jiyun Ahn, Hyunjhung Jhun
Transplantation of spermatogonial stem cells (SSCs) in experimental animal models has been used to study germ line stem cell biology and to produce transgenic animals. The species-specific recipient model preparation is important for the characterization of SSCs and the production of offspring. Here, we investigated the effects of surgically induced cryptorchidism in dog as a new recipient model for spermatogonial stem cell transplantation. Artificially unilateral or bilateral cryptorchidism was induced in ten mature male dogs by surgically returning the testis and epididymis to the abdominal cavity...
December 2016: Laboratory Animal Research
https://www.readbyqxmd.com/read/28053619/overexpression-of-n141i-ps2-increases-%C3%AE-secretase-activity-through-up-regulation-of-presenilin-and-pen-2-in-brain-mitochondria-of-nse-hps2m-transgenic-mice
#9
Woo Bin Yun, Jin Ju Park, Ji Eun Kim, Ji Eun Sung, Hyun Ah Lee, Jae Ho Lee, Chang Jun Bae, Dae Youn Hwang
Alzheimer's disease (AD) is known to induce alterations of mitochondrial function such as elevation of oxidative stress and activation of apopotosis. The aim of this study was to investigate the effects of human Presenilin 2 mutant (hPS2m) overexpression on the γ-secretase complex in the mitochondrial fraction. To achieve this, alterations of γ-secretase complex expression and activity were detected in the mitochondrial fraction derived from brains of NSE/hPS2m Tg mice and Non-Tg mice. Herein, the following were observed: i) overexpression of the hPS2m gene significantly up-regulated the deposition of Aβ-42 peptides in the hippocampus and cortex of brain, ii) overexpression of hPS2m protein induced alterations of γ-secretase components such as main component protein and activator protein but not stabilization-related proteins, iii) changes in γ-secretase components induced by overexpression of hPS2m protein up-regulated γ-secretase activity in the mitochondrial fraction, and iv) elevation of γ-secretase activity induced production of Aβ-42 peptides in the mitochondrial fraction...
December 2016: Laboratory Animal Research
https://www.readbyqxmd.com/read/28053618/changes-of-hematological-references-depends-on-storage-period-and-temperature-conditions-in-rats-and-dogs
#10
Jung-Min Lee, Jin Seok Kang
Because changes in rat and dog hematological parameters according to storage conditions have been poorly documented, we sought to examine such changes. Blood analysis was performed using two hematology analyzers (ADVIA 2120i and Sysmex XN-V) after storage at room temperature and in cold storage for 5, 24, and 48 h, respectively. Interassay coefficients of variation for hematological parameters analyzed with the ADVIA 2120i and the XN-V showed similar. The levels of hematocrit, mean corpuscular volume, mean corpuscular hemoglobin, mean corpuscular hemoglobin concentration, and platelet (PLT) showed significant variations with time in blood samples of rats and dogs...
December 2016: Laboratory Animal Research
https://www.readbyqxmd.com/read/28053617/characterization-the-response-of-korl-icr-mice-to-loperamide-induced-constipation
#11
Ji Eun Kim, Woo Bin Yun, Ji Eun Sung, Hyun Ah Lee, Jun Young Choi, Yeon Shik Choi, Young Suk Jung, Kil Soo Kim, Dae Youn Hwang
Animal models of constipation induced with drugs and diet have been widely employed to investigate therapeutic effects and the action mechanism of drugs against this disease. ICR mice were selected to produce this disease model through oral administration of loperamide (Lop), even though SD rats are commonly utilized in studies of constipation. To compare the responses of ICR mice obtained from three different sources to constipation inducers, alterations in stool number, histopathological structure, mucin secretion and opioid-receptor downstream signaling pathway were measured in Korl:ICR (Korea FDA source), A:ICR (USA source) and B:ICR (Japan source) injected with low and high concentrations of Lop (LoLop and HiLop)...
December 2016: Laboratory Animal Research
https://www.readbyqxmd.com/read/28053616/sirtuin-2-inhibition-affects-hippocampal-functions-and-sodium-butyrate-ameliorates-the-reduction-in-novel-object-memory-cell-proliferation-and-neuroblast-differentiation
#12
Hyo Young Jung, Dae Young Yoo, Jong Whi Kim, Dae Won Kim, Jung Hoon Choi, Jin Young Chung, Moo-Ho Won, Yeo Sung Yoon, In Koo Hwang
We investigated the effects of the sirtuin-2 (SIRT2) inhibitor AK-7 on novel object memory, cell proliferation, and neuroblast differentiation in the dentate gyrus. In addition, we also observed the relationships with sodium butyrate, a histone deacetylase inhibitor, on the hippocampal functions. To investigate the effects of AK-7 on hippocampal functions, 10-week-old C57BL/6 mice were daily injected intraperitoneally with 20 mg/kg AK-7 alone or in combination with subcutaneous administration of 300 mg/kg sodium butyrate, a histone deacetylase inhibitor, for 21 days...
December 2016: Laboratory Animal Research
https://www.readbyqxmd.com/read/28053615/antioxidant-and-hepatoprotective-effects-of-fermented-red-ginseng-against-high-fat-diet-induced-hyperlipidemia-in-rats
#13
Myeong-Hwan Kim, Eun-Jin Lee, Jeong-Mu Cheon, Ki-Jun Nam, Tae-Ho Oh, Kil-Soo Kim
This study was performed to investigate the antioxidant and hepatoprotective effects of fermented red ginseng (Panax ginseng C.A. Meyer; FRG) on high-fat diet-induced hyperlipidemia in rats. Sprague-Dawley rats were divided into four groups of seven: normal control, NC; high-fat diet control, HFC; high-fat diet-0.5% FRG, HF-FRGL; and high-fat diet-1% FRG, HF-FRGH. All rats were fed a high-fat diet for eight weeks, except those in the NC group, while rats in the FRG treatment groups received drinking water containing 0...
December 2016: Laboratory Animal Research
https://www.readbyqxmd.com/read/28053614/multilocus-sequence-typing-analysis-of-pseudomonas-aeruginosa-isolated-from-pet-chinese-stripe-necked-turtles-ocadia-sinensis
#14
Mitchell Wendt, Gang-Joon Heo
Our research sought to characterize the phylogeny of Pseudomonas aeruginosa isolated from pet Chinese stripe-necked turtles (Ocadia sinensis) to better understand its evolutionary relation to other isolates and increase understanding of a potential zoonotic pathogen transmitted through direct contact with pet turtles. Thirty-one Pseudomonas aeruginosa isolates were obtained from both immature and adult turtles sold in pet shops in Korea. To characterize the phylogenic position of Chinese stripe-necked turtle-borne P...
December 2016: Laboratory Animal Research
https://www.readbyqxmd.com/read/28053613/diallyl-disulfide-attenuates-acetaminophen-induced-renal-injury-in-rats
#15
Jin-Young Shin, Ji-Hee Han, Je-Won Ko, Sung-Hyeuk Park, Na-Rae Shin, Tae-Yang Jung, Hyun-A Kim, Sung-Hwan Kim, In-Sik Shin, Jong-Choon Kim
This study investigated the protective effects of diallyl disulfide (DADS) against acetaminophen (AAP)-induced acute renal injury in male rats. We also investigated the effects of DADS on kidney injury molecule-1 (KIM-1) and neutrophil gelatinase-associated lipocalin (NGAL), which are novel biomarkers of nephrotoxicity in renal tissues, in response to AAP treatment. The following four experimental groups were evaluated: (1) vehicle control, (2) AAP (1,000 mg/kg), (3) AAP&DADS, and (4) DADS (50 mg/kg/day). AAP treatment caused acute kidney injury evidenced by increased serum blood urea nitrogen (BUN) levels and histopathological alterations...
December 2016: Laboratory Animal Research
https://www.readbyqxmd.com/read/28053612/ischemic-brain-injury-decreases-dynamin-like-protein-1-expression-in-a-middle-cerebral-artery-occlusion-animal-model-and-glutamate-exposed-ht22-cells
#16
Ah-Ram Jang, Phil-Ok Koh
Dynamin-like protein I (DLP-1) is an important mitochondrial fission and fusion protein that is associated with apoptotic cell death in neurodegenerative diseases. In this study, we investigated DLP-1 expression in a focal cerebral ischemia animal model and glutamate-exposed hippocampal-derived cell line. Middle cerebral artery occlusion (MCAO) was surgically induced in adult male rats to induce focal cerebral ischemic injury. Brain tissues were collected 24 hours after the onset of MCAO. MCAO induces an increase in infarct volume and histopathological changes in the cerebral cortex...
December 2016: Laboratory Animal Research
https://www.readbyqxmd.com/read/28053611/retrospective-growth-kinetics-and-radiosensitivity-analysis-of-various-human-xenograft-models
#17
Ji Young Lee, Mi-Sook Kim, Eun Ho Kim, Namhyun Chung, Youn Kyoung Jeong
The purpose of this study was to delineate the various factors that affect the growth characteristics of human cancer xenografts in nude mice and to reveal the relationship between the growth characteristics and radiosensitivity. We retrospectively analyzed 390 xenografts comprising nine different human cancer lines grown in nude mice used in our institute between 2009 and 2015. Tumor growth rate (TGR) was calculated using exponential growth equations. The relationship between the TGR of xenografts and the proliferation of the cells in vitro was examined...
December 2016: Laboratory Animal Research
https://www.readbyqxmd.com/read/28053610/evaluation-of-stability-and-biocompatibility-of-phema-pmma-keratoprosthesis-by-penetrating-keratoplasty-in-rabbits
#18
Yawon Hwang, Gonhyung Kim
Artificial corneas have been developed as an alternative to natural donor tissue to replace damaged or diseased corneas. This study was conducted to evaluate the stability and biocompatibility of PHEMA-PMMA [poly (2-hydroxyl methacrylate)-poly (methyl methacrylate)] keratoprostheses in rabbits following penetrating keratoplasty. Sixteen male New Zealand White rabbits aged 16 weeks were divided into three groups. Group I and group II contained six rabbits each, while the control group had four rabbits. Experimental surgery was conducted under general anesthesia...
December 2016: Laboratory Animal Research
https://www.readbyqxmd.com/read/27729934/anti-atherosclerotic-effects-of-perilla-oil-in-rabbits-fed-a-high-cholesterol-diet
#19
Yeseul Cha, Ja Young Jang, Young-Hwan Ban, Haiyu Guo, Kyungha Shin, Tae-Su Kim, Sung-Pyo Lee, Jieun Choi, Eun-Suk An, Da-Woom Seo, Jung-Min Yon, Ehn-Kyoung Choi, Yun-Bae Kim
Anti-atherosclerosis effects of perilla oil were investigated, in comparison with lovastatin, in rabbits fed a high-cholesterol diet (HCD). Hypercholesterolemia was induced in rabbits by feeding the HCD containing 0.5% cholesterol and 1% corn oil, and perilla oil (0.1 or 0.3%) was added to the diet containing 0.5% cholesterol for 10 weeks. HCD greatly increased blood total cholesterol and low-density lipoproteins, and caused thick atheromatous plaques, covering 74% of the aortic wall. Hyper-cholesterolemia also induced lipid accumulation in the liver and kidneys, leading to lipid peroxidation...
September 2016: Laboratory Animal Research
https://www.readbyqxmd.com/read/27729933/prevalence-of-salmonella-spp-in-pet-turtles-and-their-environment
#20
Du-San Back, Gee-Wook Shin, Mitchell Wendt, Gang-Joon Heo
Pet turtles are known as a source of Salmonella infection to humans when handled in captivity. Thirty four turtles purchased from pet shops and online markets in Korea were examined to determine whether the turtles and their environment were contaminated with Salmonella spp. Salmonella spp. were isolated from fecal samples of 17 turtles. These isolates were identified as S. enterica through 16S rRNA gene sequencing. The isolation rate of Salmonella spp. from the soil and water samples increased over time. We concluded that a high percentage of turtles being sold in pet shops were infected with Salmonella spp...
September 2016: Laboratory Animal Research
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