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https://www.readbyqxmd.com/read/28329361/sex-hormones-affect-outcome-in-arrhythmogenic-right-ventricular-cardiomyopathy-dysplasia-from-a-stem-cell-derived-cardiomyocyte-based-model-to-clinical-biomarkers-of-disease-outcome
#1
Deniz Akdis, Ardan M Saguner, Khooshbu Shah, Chuanyu Wei, Argelia Medeiros-Domingo, Arnold von Eckardstein, Thomas F Lüscher, Corinna Brunckhorst, H S Vincent Chen, Firat Duru
Aims: Arrhythmogenic right ventricular cardiomyopathy/dysplasia (ARVC/D) is characterized by fibrofatty infiltration of the myocardium and ventricular arrhythmias that may lead to sudden cardiac death. It has been observed that male patients develop the disease earlier and present with more severe phenotypes as compared to females. Thus, we hypothesized that serum levels of sex hormones may contribute to major arrhythmic cardiovascular events (MACE) in patients with ARVC/D. Methods and results: The serum levels of five sex hormones, sex hormone-binding globulin, high sensitivity troponin T, pro-brain natriuretic peptide, cholesterol, triglycerides, insulin, and glucose were measured in 54 ARVC/D patients (72% male)...
February 18, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28326089/dynamic-regulation-of-auxin-response-during-rice-development-revealed-by-newly-established-hormone-biosensor-markers
#2
Jing Yang, Zheng Yuan, Qingcai Meng, Guoqiang Huang, Christophe Périn, Charlotte Bureau, Anne-Cécile Meunier, Mathieu Ingouff, Malcolm J Bennett, Wanqi Liang, Dabing Zhang
The hormone auxin is critical for many plant developmental processes. Unlike the model eudicot plant Arabidopsis (Arabidopsis thaliana), auxin distribution and signaling in rice tissues has not been systematically investigated due to the absence of suitable auxin response reporters. In this study we observed the conservation of auxin signaling components between Arabidopsis and model monocot crop rice (Oryza sativa), and generated complementary types of auxin biosensor constructs, one derived from the Aux/IAA-based biosensor DII-VENUS but constitutively driven by maize ubiquitin-1 promoter, and the other termed DR5-VENUS in which a synthetic auxin-responsive promoter (DR5rev ) was used to drive expression of the yellow fluorescent protein (YFP)...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28325116/stem-cell-markers-describe-a-transition-from-somatic-to-pluripotent-cell-states-in-a-rat-model-of-endometriosis
#3
Essam Rashad Othman, Fatma Yassine Meligy, Ayat Abdel-Rahman Sayed, Mohamed Ahmed El-Mokhtar, Abeer Mohamed Refaiy
OBJECTIVE: To study Thy1 as a fibroblast marker, SSEA1 as a marker of intermediate pluripotency, and Oct4 as a marker of established pluripotency in rat model of endometriosis. DESIGN: In vivo animal study. MATERIALS AND METHODS: Endometriosis was induced in 20 albino female rats through autologous transplantation of one uterine horn to mesentery of intestine. Other 20 rats had their horn removed without transplantation (controls). Rats were sacrificed 4 weeks after induction surgery...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28324799/modified-masquelet-technique-using-allogeneic-umbilical-cord-derived-mesenchymal-stem-cells-for-infected-non-union-femoral-shaft-fracture-with-a-12-cm-bone-defect-a-case-report
#4
Ismail Hadisoebroto Dilogo, Muhammad Rizqi Adhi Primaputra, Jeanne Adiwinata Pawitan, Isabella Kurnia Liem
INTRODUCTION: Non-union due to large bone loss often causes significant long-term morbidity. We incorporate the use of allogeneic umbilical cord-derived mesenchymal stem cells (UC-MSCs) as part of the diamond concept of regenerative medicine in a case of infected non-union fracture. PRESENTATION OF CASE: We reported a 54-year-old female patient presenting with pain on the right thigh. She was previously diagnosed with a closed fracture of the right femoral shaft and underwent four surgeries before finally being referred to Dr...
March 6, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28318095/clinicopathologic-and-molecular-characterization-of-myeloid-neoplasms-with-isolated-t-6-9-p23-q34
#5
V Visconte, S Shetty, B Przychodzen, C Hirsch, J Bodo, J P Maciejewski, E D Hsi, H J Rogers
INTRODUCTION: The t(6;9)(p23;q34);DEK-NUP214 [t(6;9)] abnormality is found in 0.7-1.8% of patients with acute myeloid leukemia (AML) or myelodysplastic syndromes (MDS). FLT3-ITD mutations are detected in t(6;9) patients. The t(6;9) abnormality is associated with poor outcomes. We studied the clinicopathologic and molecular profiles of patients with AML/MDS carrying t(6;9). METHODS: We collected clinical data of nine patients with AML/MDS with isolated t(6;9) (median age = 41 years; male/female = 4/5) and genotyped DNAs using whole exome, Sanger, and targeted sequencing...
March 20, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28301051/adverse-events-of-cryopreserved-hematopoietic-stem-cell-infusions-in-adults-a-single-center-observational-study
#6
Zaher K Otrock, Diane S Sempek, Sherry Carey, Brenda J Grossman
BACKGROUND: Autologous hematopoietic stem cell (HSC) transplantation has been used for almost three decades for the management of malignant hematologic diseases and some solid tumors. Dimethyl sulfoxide (DMSO) is used as a cryoprotective agent for hematopoietic progenitor cells (HPCs) collected by apheresis (HPC-A). We evaluated the factors contributing to the occurrence of adverse events (AEs) of cryopreserved HPC-A infusion. STUDY DESIGN AND METHODS: Between January 2009 and June 2014, a total of 1269 (1191 patients) consecutive HPC-A infusions were given to adult patients undergoing autologous HSC transplantation at Barnes-Jewish Hospital...
March 16, 2017: Transfusion
https://www.readbyqxmd.com/read/28298252/reduced-circulating-stem-cells-associate-with-excess-fasting-and-post-load-nefa-exposure-in-healthy-adults-with-normal-glucose-tolerance
#7
Gian Paolo Fadini, Andrea Tura, Giovanni Pacini, Angelo Avogaro, Saula Vigili de Kreutzenberg
BACKGROUND AND AIMS: Reduced levels of circulating stem cells (CSCs) predict cardiovascular events and death, but the factors underlying variability of CSCs in healthy adults are mostly unknown. Previous studies detected associations of CSCs with glucose tolerance or insulin resistance, while the role of fatty acids has been overlooked. We herein aimed to describe in better detail the metabolic abnormalities associated with a reduced CSC level. METHODS: This was a cross-sectional study on 94 healthy male and female individuals with normal glucose tolerance, aged 18-65 years...
March 6, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28294434/immunologic-regulatory-effects-of-human-umbilical-cord-blood-derived-mesenchymal-stem-cells-in-a-murine-ovalbumin-asthma-model
#8
Sung-Yoon Kang, Da-Eun Park, Woo-Jung Song, Bo-Ram Bae, Ji-Won Lee, Kyoung-Hee Sohn, Hyun-Seung Lee, Hye-Ryun Kang, Heung-Woo Park, Yoon-Seok Chang, Soo-Jin Choi, Won-Il Oh, Kyung-Up Min, Sang-Heon Cho
BACKGROUND: Mesenchymal stem cells (MSCs) have multiple immunomodulatory properties and hold therapeutic potential for inflammatory diseases. However, the therapeutic and immunologic effects of human umbilical cord blood-derived MSCs (huMSCs) remain largely unexamined for asthma. OBJECTIVE: This study was to investigate the immunomodulatory properties of huMSCs in an ovalbumin (OVA)-induced murine asthma model. METHODS: Mice were injected intraperitoneally with OVA and an aluminum hydroxide adjuvant...
March 14, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28291261/modeling-anorexia-nervosa-transcriptional-insights-from-human-ipsc-derived-neurons
#9
P D Negraes, F R Cugola, R H Herai, C A Trujillo, A S Cristino, T Chailangkarn, A R Muotri, V Duvvuri
Anorexia nervosa (AN) is a complex and multifactorial disorder occurring predominantly in women. Despite having the highest mortality among psychiatric conditions, it still lacks robust and effective treatment. Disorders such as AN are most likely syndromes with multiple genetic contributions, however, genome-wide studies have been underpowered to reveal associations with this uncommon illness. Here, we generated induced pluripotent stem cells (iPSCs) from adolescent females with AN and unaffected controls...
March 14, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28289071/disorganization-of-the-germ-cell-pool-leads-to-primary-ovarian-insufficiency
#10
Ikko Kawashima, Kazuhiro Kawamura
The mammalian ovary is an organ that controls female germ cell development, storing them and releasing mature oocytes for transporting to the oviduct. During the fetal stage, female germ cells change from a proliferative state to meiosis before forming follicles with the potential for growth of surrounding somatic cells. Understanding of molecular and physiological bases of germ cell development in the fetal ovary contributed not only to the elucidation of genetic disorders in primary ovarian insufficiency (POI), but also advancement of novel treatments for patients with POI...
March 13, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28285950/human-amniotic-mesenchymal-stromal-cell-transplantation-improves-endometrial-regeneration-in-rodent-models-of-intrauterine-adhesions
#11
Lu Gan, Hua Duan, Qian Xu, Yi-Qun Tang, Jin-Jiao Li, Fu-Qing Sun, Sha Wang
BACKGROUND AIMS: Intrauterine adhesion (IUA) is a common uterine cavity disease characterized by the unsatisfactory regeneration of damaged endometria. Recently, stem cell transplantation has been proposed to promote the recovery process. Here we investigated whether human amniotic mesenchymal stromal cells (hAMSCs), a valuable resource for transplantation therapy, could improve endometrial regeneration in rodent IUA models. METHODS: Forty female Sprague-Dawley rats were randomly assigned to five groups: normal, sham-operated, mechanical injury, hAMSC transplantation, and negative control group...
March 9, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28285567/increased-scf-in-follicular-fluid-and-granulosa-cells-positively-correlates-with-oocyte-maturation-fertilization-and-embryo-quality-in-humans
#12
Jun Tan, Yang Zou, Xing-Wu Wu, Li-Feng Tian, Qiong Su, Jin-Xia He, Zhi-Hui Huang, Yan Zhao, Li-Ping Wu, Qiong-Fang Wu
Stem cell factor (SCF), which is derived from granulosa cells (GCs), plays a key role in the process of follicular development and oocyte maturation. The present study aimed to explore whether the levels of SCF in follicular fluid (FF) and GCs can be used as a potential marker for predicting oocyte developmental potential. Follicular fluid and GC samples from 150 female patients undergoing intracytoplasmic sperm injection were collected in this study. The SCF concentrations in FFs and SCF messenger RNA (mRNA) in GCs were evaluated by using enzyme-linked immunosorbent assay and real-time polymerase chain reaction, respectively...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28281945/complication-after-extraction-of-natal-teeth-with-continued-growth-of-a-dental-papilla
#13
Sook Hee Kim, Young-Ah Cho, Ok Hyung Nam, Mi Sun Kim, Sung Chul Choi, Hyo-Seol Lee
The purposes of this case report were to describe a growing two-cm gingival mass that developed after natal teeth were extracted in a four-month-old female patient, present a review of the literature on the growth of a gingival mass after the extraction of natal teeth, and illustrate the clinical and histological features that differentiate this condition from other types of gingival masses in infants. Histological examination of the excised mass revealed that it contained tooth-like hard tissue (regular and irregular dentin) that intermingled with bone, dental pulp, and fibrous tissue...
November 15, 2016: Pediatric Dentistry
https://www.readbyqxmd.com/read/28280669/in-vivo-chondrogenesis-in-3d-bioprinted-human-cell-laden-hydrogel-constructs
#14
Thomas Möller, Matteo Amoroso, Daniel Hägg, Camilla Brantsing, Nicole Rotter, Peter Apelgren, Anders Lindahl, Lars Kölby, Paul Gatenholm
BACKGROUND: The three-dimensional (3D) bioprinting technology allows creation of 3D constructs in a layer-by-layer fashion utilizing biologically relevant materials such as biopolymers and cells. The aim of this study is to investigate the use of 3D bioprinting in a clinically relevant setting to evaluate the potential of this technique for in vivo chondrogenesis. METHODS: Thirty-six nude mice (Balb-C, female) received a 5- × 5- × 1-mm piece of bioprinted cell-laden nanofibrillated cellulose/alginate construct in a subcutaneous pocket...
February 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28279229/human-umbilical-cord-mesenchymal-stem-cells-improve-the-reserve-function-of-perimenopausal-ovary-via-a-paracrine-mechanism
#15
Jia Li, QiuXian Mao, JingJun He, HaoQing She, Zhi Zhang, ChunYan Yin
BACKGROUND: Human umbilical cord mesenchymal stem cells (hUCMSCs) are a type of pluripotent stem cell which are isolated from the umbilical cord of newborns. hUCMSCs have great therapeutic potential. We designed this experimental study in order to investigate whether the transplantation of hUCMSCs can improve the ovarian reserve function of perimenopausal rats and delay ovarian senescence. METHOD: We selected naturally aging rats confirmed by vaginal smears as models of perimenopausal rats, divided into the control group and the treatment group, and selected young fertile female rats as normal controls...
March 9, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28274546/long-term-outcome-of-patients-with-x-linked-adrenoleukodystrophy-a-retrospective-cohort-study
#16
Christel Tran, Jaina Patel, Hewson Stacy, Eva G Mamak, Hanna Faghfoury, Julian Raiman, Joe T R Clarke, Susan Blaser, Saadet Mercimek-Mahmutoglu
BACKGROUND: X-linked adrenoleukodystrophy (X-ALD) is a peroxisomal disorder associated with leukodystrophy, myeloneuropathy and adrenocortical insufficiency. We performed a retrospective cohort study to evaluate long-term outcome of patients with X-ALD. METHOD: All patients with X-ALD diagnosed between 1989 and 2012 were included. Electronic patient charts were reviewed for clinical features, biochemical investigations, molecular genetic testing, neuroimaging, long-term outcome and treatment...
February 21, 2017: European Journal of Paediatric Neurology: EJPN
https://www.readbyqxmd.com/read/28273973/evaluation-of-the-role-of-aldh1-as-cancer-stem-cell-marker-in-colorectal-carcinoma-an-immunohistochemical-study
#17
Nanis Shawky Holah, Hayam Abd-El-Samie Aiad, Nancy Yousif Asaad, Enas Abobakr Elkhouly, Ayat Gamal Lasheen
INTRODUCTION: Colorectal Carcinoma (CRC) is the third most commonly diagnosed cancer in males. Stem Cells (SC) may be involved in tumour growth, including colon cancer. Aldehyde Dehydrogenase 1 (ALDH1) is a detoxifying enzyme that might modulate SC proliferation. AIMS: To evaluate the immunohistochemical expression of ALDH1 as stem cell marker in the pathogenesis of colorectal carcinoma. MATERIALS AND METHODS: This retrospective study included 71 colorectal specimens (49 colorectal carcinoma, 13 adenoma and 9 normal cases) that were collected from Pathology Department, Faculty of Medicine, Menoufia University during the period from 2011 to 2015...
January 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28271644/a-case-of-disseminated-infection-with-skin-manifestation-due-to-non-neoformans-and-non-gattii-cryptococcus-in-a-patient-with-refractory-acute-myeloid-leukemia
#18
Sun Seob Park, Hyewon Lee, Weon Seo Park, Sang Hyun Hwang, Sang Il Choi, Mi Hong Choi, Si Won Lee, Eun Jung Ko, Young Ju Choi, Hyeon Seok Eom
Cryptococcus spp. other than Cryptococcus neoformans or Cryptococcus gattii were previously considered saprophytes and thought to be non-pathogenic to humans. However, opportunistic infections associated with non-neoformans and non-gattii species, such as Cryptococcus laurentii and Cryptococcus albidus, have increased over the past four decades. We experienced a case of cryptococcosis caused by non-neoformans and non-gattii spp. in a 47-year-old female with refractory acute myeloid leukemia after allogeneic hematopoietic stem cell transplantation...
January 16, 2017: Infection & Chemotherapy
https://www.readbyqxmd.com/read/28270572/creb-signaling-is-involved-in-rett-syndrome-pathogenesis
#19
Qian Bu, Anxin Wang, Hamdi Hamzah, Alex Waldman, Keer Jiang, Qiping Dong, Ronghui Li, Jason Kim, Daniel Turner, Qiang Chang
Rett syndrome (RTT) is a debilitating neurodevelopmental disorder caused by mutations in the MECP2 gene. To facilitate the study of cellular mechanisms in human cells, we established several human stem cell lines: human embryonic stem cell (hESC) line carrying the common T158M mutation (MECP2(T158M/T158M) ), hESC line expressing no MECP2 (MECP2-KO), congenic pair of wild type and mutant RTT patient-specific induced pluripotent stem cell (iPSC) line carrying the V247fs mutation (V247fs-WT and V247fs-MT), and iPSC line in which the V247fs mutation was corrected by CRISPR/Cas9-based genome editing (V247fs-MT-correction)...
March 7, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28270035/bmi-1-promotes-self-renewal-of-radio-and-temozolomide-tmz-resistant-breast-cancer-cells
#20
Yanfang Yan, Ying Wang, Pengxin Zhao, Weiyuan Ma, Zhigang Hu, Kaili Zhang
Breast cancer is a hormone-dependent malignancy and is the most prevalent cause of cancer-related mortality among females. Radiation therapy and chemotherapy are common treatments of breast cancer. However, tumor relapse and metastasis following therapy are major clinical challenges. The importance of B-lymphoma Moloney murine leukemia virus insertion region-1 (BMI-1) was implicated in cell proliferation, stem cell maintenance, and tumor initiation. We established radio- and temozolomide (TMZ)-resistant (IRC-R) MCF-7 and MDA-MB-231 cell lines to investigate the mechanism involved in therapeutic resistance...
January 1, 2017: Reproductive Sciences
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