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https://www.readbyqxmd.com/read/28433368/chromosomal-mosaicism-detected-during-preimplantation-genetic-screening-results-of-a-worldwide-web-based-survey
#1
REVIEW
Ariel Weissman, Gon Shoham, Zeev Shoham, Simon Fishel, Milton Leong, Yuval Yaron
Embryonic mosaicism, the presence of more than one distinct cell line within an embryo, has recently become the focus of growing attention and controversy in the context of preimplantation genetic screening (PGS). To evaluate the extent of mosaic aneuploidy in clinical practice and to gain insight on the practices and views regarding this issue, we conducted a survey using a prospective, 20-item Web-based questionnaire with questions related to practices and views regarding mosaicism in PGS. A total of 102 in vitro fertilization (IVF) units from 32 countries that performed 108,900 IVF cycles annually responded to the survey...
April 19, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28432138/inhibition-of-drp1-ameliorates-synaptic-depression-a%C3%AE-deposition-and-cognitive-impairment-in-alzheimer-s-disease-model
#2
Seung-Hyun Baek, So Jung Park, Jae In Jeong, Sung Hyun Kim, Jihoon Han, Jae Won Kyung, Sang-Ha Baik, Yuri Choi, Bo-Youn Choi, Jinsu Park, Gahee Bahn, Ji Hyun Shin, Doo Sin Jo, Joo-Yong Lee, Choon-Gon Jang, Thiruma V Arumugam, Jongpil Kim, Jeung-Whan Han, Jae-Young Koh, Dong-Hyung Cho, Dong-Gyu Jo
Excessive mitochondrial fission is a prominent early event, and contributes to mitochondrial dysfunction, synaptic failure and neuronal cell death in the progression of Alzheimer's disease (AD). However, it remains to be determined whether inhibition of excessive mitochondrial fission is beneficial in mammal models of AD. To determine whether dynamin-related protein 1 (Drp1), a key regulator of mitochondrial fragmentation, can be a disease-modifying therapeutic target for AD, we examine the effects of Drp1 inhibitor on mitochondrial and synaptic dysfunctions induced by oligomeric β-amyloid (Aβ) in neurons, and neuropathology and cognitive functions in APP/PS1 double transgenic AD mice...
April 21, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28420514/detection-of-mosaic-15q11-1-q11-2-deletion-encompassing-nbeap1-and%C3%A2-poteb-in-a-fetus-with-diffuse-lymphangiomatosis
#3
Chih-Ping Chen, Kuo-Gon Wang, Hsu-Kuang Huang, Cheng-Ran Peng, Schu-Rern Chern, Peih-Shan Wu, Yen-Ni Chen, Shin-Wen Chen, Chen-Chi Lee, Wayseen Wang
OBJECTIVE: We present cytogenetic and molecular cytogenetic diagnoses of mosaic deletion of chromosome 15q11.1-q11.2 in a fetus with diffuse lymphangiomatosis. CASE REPORT: A 33-year-old woman underwent amniocentesis at 22 weeks of gestation because of fetal diffuse lymphangiomatosis involving left-side chest, abdominal cavity, thigh and vulva, and intrauterine growth restriction. Amniocentesis revealed a karyotype of 46,XX,del(15) (q11.1q11.2)[9]/46,XX[26]. The mother had a karyotype of 46,XX...
April 2017: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28420224/silk-fibroin-alginate-hydroxyapatite-composite-particles-in-bone-tissue-engineering-applications-in-vivo
#4
You-Young Jo, Seong-Gon Kim, Kwang-Jun Kwon, HaeYong Kweon, Weon-Sik Chae, Won-Geun Yang, Eun-Young Lee, Hyun Seok
The aim of this study was to evaluate the in vivo bone regeneration capability of alginate (AL), AL/hydroxyapatite (HA), and AL/HA/silk fibroin (SF) composites. Forty Sprague Dawley rats were used for the animal experiments. Central calvarial bone (diameter: 8.0 mm) defects were grafted with AL, AL/HA, or AL/HA/SF. New bone formation was evaluated by histomorphometric analysis. To demonstrate the immunocompatibility of each group, the level of tumor necrosis factor (TNF)-α expression was studied by immunohistochemistry (IHC) and quantitative reverse transcription polymerase chain reaction (qRT-PCR) at eight weeks post implantation...
April 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28418029/tmcactin-plays-an-important-role-in-gram-negative-and-positive-bacterial-infection-by-regulating-expression-of-7-amp-genes-in-tenebrio-molitor
#5
Yong Hun Jo, Yu Jung Kim, Ki Beom Park, Jeong Hwan Seong, Soo Gon Kim, Soyi Park, Mi Young Noh, Yong Seok Lee, Yeon Soo Han
Cactin was originally identified as an interactor of the Drosophila IκB factor Cactus and shown to play a role in controlling embryonic polarity and regulating the NF-κB signaling pathway. While subsequent studies have identified the roles for Cactin in the mammalian immune response, the immune function of Cactin in insects has not been described yet. Here, we identified a Cactin gene from the mealworm beetle, Tenebrio molitor (TmCactin) and characterized its functional role in innate immunity. TmCactin was highly expressed in prepupa to last instar stages, and its expression was high in the integument and Malpighian tubules of last instar larvae and adults...
April 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28415571/increased-b-cell-activation-is-present-in-jak2v617f-mutated-calr-mutated-and-triple-negative-essential-thrombocythemia
#6
Ken-Hong Lim, Caleb Gon-Shen Chen, Yu-Cheng Chang, Yi-Hao Chiang, Chen-Wei Kao, Wei-Ting Wang, Chiao-Yi Chang, Ling Huang, Ching-Sung Lin, Chun-Chia Cheng, Hung-I Cheng, Nai-Wen Su, Johnson Lin, Yi-Fang Chang, Ming-Chih Chang, Ruey-Kuen Hsieh, Huan-Chau Lin, Yuan-Yeh Kuo
Essential thrombocythemia (ET) is a BCL-ABL1-negative myeloproliferative neoplasm. We have reported that increased activated B cells can facilitate platelet production mediated by cytokines regardless JAK2 mutational status in ET. Recently, calreticulin (CALR) mutations were discovered in ~30% JAK2/MPL-unmutated ET and primary myelofibrosis. Here we sought to screen for CALR mutations and to evaluate B cell immune profiles in a cohort of adult Taiwanese ET patients. B cell populations, granulocytes/monocytes membrane-bound B cell-activating factor (mBAFF) levels, B cells toll-like receptor 4 (TLR4) expression and intracellular levels of interleukin (IL)-1β/IL-6 and the expression of CD69, CD80, and CD86 were quantified by flow cytometry...
March 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28414137/novel-dabigatran-etexilate-hemisuccinate-loaded-polycap-physicochemical-characterisation-and-in-vivo-evaluation-in-beagle-dogs
#7
Jung Hyun Cho, Jin Cheul Kim, Hyung-Seo Kim, Dong Shik Kim, Kyeong Soo Kim, Yong Il Kim, Chul Soon Yong, Jong Oh Kim, Yu Seok Youn, Kyung Taek Oh, Jong Soo Woo, Han-Gon Choi
The purpose of this study was to develop a novel dabigatran etexilate hemisuccinate (DEH) salt-loaded polycap with bioequivalence to the dabigatran etexilate mesylate (DEM)-loaded commercial product. DEH prepared with dabigatran etexilate base (DE) and succinic acid was less hygroscopic but less soluble than DEM. Numerous micronized DEHs and DEH-loaded solid dispersions were prepared employing the spiral jet-milling and spray-drying techniques, respectively. Among the formulations prepared, a micronized DEH prepared with the injection air at 1...
April 13, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28411462/flavone-polyphenols-dominate-in-thymus-schimperi-ronniger-lc-esi-ms-ms-characterization-and-study-of-anti-proliferative-effects-of-plant-extract-on-ags-and-hepg2-cancer-cells
#8
Kebede Taye Desta, Gon Sup Kim, A M Abd El-Aty, Suchismita Raha, Man-Bae Kim, Ji Hoon Jeong, Mohamad Warda, Ahmet Hacımüftüoğlu, Ho-Chul Shin, Jae-Han Shim, Sung Chul Shin
Thymus schimperi is a highly localized and a rare plant endemic to Ethiopia. An optimized and validated high-performance liquid chromatography-electrospray ionization-tandem mass spectrometry (HPLC-ESI-MS/MS) method was applied to characterize 23 polyphenolic compounds found in ethyl acetate extracts of the plant. From those, flavones dominated and luteolin was the major component contributing 21.83% of the total composition (or 46.05±0.59g/kg of fresh sample weight). Validation data showed a determination coefficient (R(2))≥0...
March 31, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28411245/characteristics-of-earlier-versus-delayed-presentation-of-very-late-drug-eluting-stent-thrombosis-an-optical-coherence-tomographic-study
#9
Seung-Yul Lee, Jung-Min Ahn, Gary S Mintz, Seung-Ho Hur, So-Yeon Choi, Sang-Wook Kim, Jin Man Cho, Soon Jun Hong, Jin Won Kim, Young Joon Hong, Sang-Gon Lee, Dong-Ho Shin, Jung-Sun Kim, Byeong-Keuk Kim, Young-Guk Ko, Donghoon Choi, Yangsoo Jang, Seung-Jung Park, Myeong-Ki Hong
BACKGROUND: The pathophysiology underlying very late drug-eluting stent (DES) thrombosis is not sufficiently understood. Using optical coherence tomography, we investigated characteristics of very late stent thrombosis (VLST) according to different onset times. METHODS AND RESULTS: A total of 98 patients from 10 South Korean hospitals who underwent optical coherence tomography for evaluation of very late DES thrombosis were retrospectively included in analyses. VLST occurred at a median of 55...
April 14, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28410515/folate-receptor-targeted-hybrid-lipid-core-nanocapsules-for-sequential-delivery-of-doxorubicin-and-tanespimycin
#10
Biki Gupta, Shiva Pathak, Bijay Kumar Poudel, Shobha Regmi, Hima Bindu Ruttala, Milan Gautam, Jong Seong Lee, Jee-Heon Jeong, Han-Gon Choi, Chul Soon Yong, Jong Oh Kim
When exposed to cancer cells, cytotoxic drugs such as doxorubicin (DOX) can lead to the induction of heat shock protein 90 (Hsp90), a molecular chaperone associated with a number of cancer-related client proteins, and result in cell survival. Co-administration of DOX with tanespimycin (TNP), an Hsp90 inhibitor, can sensitize the cancer cells to the cytotoxic effects of DOX. The effect of such a combination has been found to depend on the schedule of administration. Sequential administration of DOX and TNP has been linked to highly synergistic combination effects...
April 6, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28409074/c2-and-greater-occipital-nerve-the-anatomic-and-functional-implications-in-spinal-surgery
#11
M Burhan Janjua, Peter L Zhou, Jeffrey P Greenfield, Ali A Baaj, Anthony Frempong-Boadu
INTRODUCTION: Posterior C1-C2 fusion is a highly successful treatment for atlantoaxial instability and other pathologies of the cervical spine, with fusion rates approaching 95%-100%. However, poor visualization of the lateral masses of C1 secondary to the course of the C2 nerve root along with blood loss from the venous plexus and compression of the C2 nerve from lateral mass screws are technical obstacles that can arise during surgery. Thus, sacrifice of the C2 nerve root has long since been debated in fusions involving the C1 and C2 vertebral bodies...
March 3, 2017: Curēus
https://www.readbyqxmd.com/read/28407041/effects-of-low-muscle-mass-on-albuminuria-and-chronic-kidney-disease-in-patients-with-type-2-diabetes-the-korean-sarcopenic-obesity-study-ksos
#12
Hye Soo Chung, Soon Young Hwang, Ju Hee Choi, Hyun Jung Lee, Hye Jin Yoo, Ji-A Seo, Sin Gon Kim, Nan Hee Kim, Dong Seop Choi, Sei Hyun Baik, Kyung Mook Choi
Background: Previous studies have shown that chronic kidney disease (CKD) is associated with accelerated loss of skeletal muscle in patients on dialysis. However, the relationships of sarcopenia with albuminuria and early-stage CKD in patients with type 2 diabetes have not been examined. Methods: We analyzed diabetic subgroup data from 409 patients with type 2 diabetes from the Korean Sarcopenic Obesity Study (KSOS). Sarcopenia was defined as a skeletal muscle mass index (SMI; SMI [%] = total skeletal muscle mass [kg]/weight [kg] × 100) less than 2 SD below the sex-specific mean for a younger reference group...
April 12, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/28401568/a-secreted-chitinase-like-protein-osclp-supports-root-growth-through-calcium-signaling-in-oryza-sativa
#13
Jingni Wu, Yiming Wang, Sang Gon Kim, Ki-Hong Jung, Ravi Gupta, Joonyup Kim, Younghoon Park, Kyu Young Kang, Sun Tae Kim
Chitinases belong to a conserved protein family and play multiple roles in defense, development, and growth regulation in plants. Here, we identified a secreted chitinase-like protein, OsCLP, which functions in rice growth. A T-DNA insertion mutant of OsCLP (osclp) showed significant retardation of root and shoot growth. A comparative proteomic analysis was carried out using root tissue of wild-type and the osclp mutant to understand the OsCLP-mediated rice growth retardation. Results obtained revealed that proteins related to glycolysis (phosphoglycerate kinase), stress adaption (chaperonin) and calcium signaling (calreticulin and CDPK1) were differentially regulated in osclp roots...
April 12, 2017: Physiologia Plantarum
https://www.readbyqxmd.com/read/28393891/progressive-slowdown-prevention-of-cellular-senescence-by-cd9-targeted-delivery-of-rapamycin-using-lactose-wrapped-calcium-carbonate-nanoparticles
#14
Raj Kumar Thapa, Hanh Thuy Nguyen, Jee-Heon Jeong, Jae Ryong Kim, Han-Gon Choi, Chul Soon Yong, Jong Oh Kim
Cellular senescence, a state of irreversible growth arrest and altered cell function, causes aging-related diseases. Hence, treatment modalities that could target aging cells would provide a robust therapeutic avenue. Herein, for the first time, we utilized CD9 receptors (overexpressed in senescent cells) for nanoparticle targeting in addition to the inherent β-galactosidase activity. In our study, CD9 monoclonal antibody-conjugated lactose-wrapped calcium carbonate nanoparticles loaded with rapamycin (CD9-Lac/CaCO3/Rapa) were prepared for targeted rapamycin delivery to senescent cells...
April 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28389907/targeted-next-generation-sequencing-identified-novel-mutations-in-triple-negative-myeloproliferative-neoplasms
#15
Yu-Cheng Chang, Huan-Chau Lin, Yi-Hao Chiang, Caleb Gon-Shen Chen, Ling Huang, Wei-Ting Wang, Chun-Chia Cheng, Johnson Lin, Yi-Fang Chang, Ming-Chih Chang, Ruey-Kuen Hsieh, Shu-Jen Chen, Ken-Hong Lim, Yuan-Yeh Kuo
Mutations in JAK2, MPL and CALR genes have been identified in the majority of myeloproliferative neoplasm (MPN) patients, and patients negative for these three mutations are the so-called triple-negative (TN) MPN. In this study, we examined the mutational profiles of 16 triple-negative MPN patients including 7 essential thrombocythemia (ET), 1 primary myelofibrosis and 8 polycythemia vera (PV). Targeted next-generation sequencing was performed using the ACTOnco Comprehensive Cancer Panel (Ion AmpliSeq Comprehensive Cancer Panel, Life Technologies) to target all coding exons of 409 cancer-related genes...
May 2017: Medical Oncology
https://www.readbyqxmd.com/read/28389793/location-characteristics-of-early-gastric-cancer-treated-with-endoscopic-submucosal-dissection
#16
Dae Hwan Kang, Cheol Woong Choi, Hyung Wook Kim, Su Bum Park, Su Jin Kim, Hyeong Seok Nam, Dae Gon Ryu
BACKGROUND AND STUDY AIMS: The timely detection of early gastric cancer (EGC) is important in performing endoscopic submucosal dissection (ESD). We attempted to determine the location characteristics of regions where EGC is frequently detected and analyzed the EGC characteristics associated with that location. METHODS: We retrospectively reviewed the medical records of patients with EGC treated by ESD between November 2008 and August 2016. We retrospectively investigated and analyzed 647 EGC lesions...
April 7, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28388324/ability-of-three-general-use-pesticides-to-suppress-nymphal-ixodes-scapularis-and-amblyomma-americanum-acari-ixodidae
#17
Robert A Jordan, Terry L Schulze, Lars Eisen, Marc C Dolan
We evaluated 3 over-the-counter pesticides for their ability to suppress host-seeking Ixodes scapularis and Amblyomma americanum nymphs. We applied liquid concentrate and granular formulations of Bayer Advanced Complete Insect Killer, Spectracide Triazicide Insect Killer, and Ortho Bug-B-Gon to forest plots using equipment available for purchase at retail home improvement outlets. All 3 liquid formulations provided rapid knockdown (≥98% control) of both species 1 day after application. Liquid Ortho Bug-B-Gone provided 100% suppression of I...
March 2017: Journal of the American Mosquito Control Association
https://www.readbyqxmd.com/read/28382438/the-effect-on-choroidal-changes-of-the-route-of-systemic-corticosteroids-in-acute-vogt-koyanagi-harada-disease
#18
Un Chul Park, In Hwan Cho, Eun Kyung Lee, Hyeong Gon Yu
PURPOSE: To determine whether route of corticosteroid administration during the acute stage of Vogt-Koyanagi-Harada (VKH) disease affects depigmentary change and subfoveal choroidal thickness (SCT) during the convalescent stage. METHODS: In this retrospective comparative study, VKH patients with the interval between diagnosis and final follow-up of ≥ 24 months were divided into two groups according to route of systemic corticosteroid; intravenous pulse therapy (IV pulse group) and oral administration (oral group)...
April 5, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28382282/ursodeoxycholic-acid-induces-death-receptor-mediated-apoptosis-in-prostate-cancer-cells
#19
Won Sup Lee, Ji Hyun Jung, Radha Panchanathan, Jeong Won Yun, Dong Hoon Kim, Hye Jung Kim, Gon Sup Kim, Chung Ho Ryu, Sung Chul Shin, Soon Chan Hong, Yung Hyun Choi, Jin-Myung Jung
BACKGROUND: Bile acids have anti-cancer properties in a certain types of cancers. We determined anticancer activity and its underlying molecular mechanism of ursodeoxycholic acid (UDCA) in human DU145 prostate cancer cells. METHODS: Cell viability was measured with an MTT assay. UDCA-induced apoptosis was determined with flow cytometric analysis. The expression levels of apoptosis-related signaling proteins were examined with Western blotting. RESULTS: UDCA treatment significantly inhibited cell growth of DU145 in a dose-dependent manner...
March 2017: Journal of Cancer Prevention
https://www.readbyqxmd.com/read/28382095/prognostic-influence-of-bcl2-on-molecular-subtypes-of-breast-cancer
#20
Ki-Tae Hwang, Wonshik Han, Jongjin Kim, Hyeong-Gon Moon, Sohee Oh, Yun Seon Song, Young A Kim, Mee Soo Chang, Dong-Young Noh
PURPOSE: We aimed to reveal the prognostic influence of B-cell CLL/lymphoma 2 (BCL2) on molecular subtypes of breast cancer. METHODS: We analyzed 9,468 patients with primary breast cancer. We classified molecular subtypes according to the National Comprehensive Cancer Network (NCCN) and St. Gallen guidelines, mainly on the basis of the expression of hormonal receptor (HR), human epidermal growth factor receptor 2 (HER2), and Ki-67. RESULTS: Regarding NCCN classification, BCL2 was a strong favorable prognostic factor in the HR(+)/HER2(-) subtype (p<0...
March 2017: Journal of Breast Cancer
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