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https://www.readbyqxmd.com/read/30004111/recipient-single-nucleotide-polymorphisms-in-paneth-cell-antimicrobial-peptide-genes-and-acute-graft-versus-host-disease-analysis-of-bmt-ctn-0201-and-0901-samples
#1
Armin Rashidi, Ryan Shanley, Sophia L Yohe, Bharat Thyagarajan, Julie Curtsinger, Claudio Anasetti, Edmund K Waller, Bart L Scott, Bruce R Blazar, Daniel J Weisdorf
Host genetics shape the gut microbiota, and gut dysbiosis increases the risk of acute graft-versus-host disease (aGVHD). Paneth cells and microbiota have interactions that contribute to immune regulation. α-defensin-5 (HD5) and regenerating islet-derived protein 3 alpha (Reg3A) are the most abundant Paneth cell antimicrobial peptides (AMPs). We hypothesized that single nucleotide polymorphisms (SNPs) in the genes for HD5 (DEFA5) and Reg3A (REG3A) predict aGVHD risk. We analysed pre-transplant recipient peripheral blood mononuclear cell samples from randomized Blood and Marrow Transplant Clinical Trials Network (BMT CTN) studies 0201 (94 patients with bone marrow and 93 with peripheral blood grafts) and 0901 (86 patients with myeloablative and 77 with reduced-intensity conditioning; all using peripheral blood grafts)...
July 13, 2018: British Journal of Haematology
https://www.readbyqxmd.com/read/30003422/peculiarities-of-osteogenesis-by-periosteal-cells-after-experimental-ectopic-transplantation
#2
A A Ivanov, T I Danilova, O P Popova, A I Erohin, E S Semenihina
We carried out a comparative study of the features of osteogenesis from the progenitor osteogenic periosteal cells in rabbit and human. At the initial stages, high osteogenic potential of both human and rabbit periosteal cells was observed. However, at the later stages, the cell response favors resorption of the new bone tissue formed from periosteal cells in rabbits, but does not affect the bone tissue formed from human progenitor osteogenic periosteal cells. These functional characteristics of rabbit periosteal cells should be considered when planning the experiment...
July 12, 2018: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/30002795/infections-in-myelodysplastic-syndrome-in-relation-to-stage-and-therapy
#3
REVIEW
Giuseppe Leone, Livio Pagano
Infections remain a significant problem in myelodysplastic syndromes (MDS) in treated as well in non-treated patients and assume a particular complexity. The susceptibility to infections is due, in the absence of intensive chemotherapies, mainly to functional defects in the myeloid lineage with or without neutropenia. Furthermore, MDS includes a heterogeneous group of patients with very different prognosis, therapy and risk factors regarding survival and infections. You should distinguish risk factors related to the disease, like as neutrophils function impairment, neutropenia, unfavorable cytogenetics and bone marrow insufficiency; factors related to the patient, like as age and comorbidities, and factors related to the therapy...
2018: Mediterranean Journal of Hematology and Infectious Diseases
https://www.readbyqxmd.com/read/30001893/haematopoietic-stem-cell-transplantation-in-paediatric-patients-with-%C3%AE-thalassaemia-and-sickle-cell-disease-an-experience-of-the-spanish-working-group-for-bone-marrow-transplantation-in-children-getmon
#4
Laura Alonso, Marta González-Vicent, Cristina Belendez, Isabel Badell, Ana Sastre, Antonia Rodríguez-Villa, Mar Bermúdez-Cortés, Raquel Hladun, Cristina Díaz de Heredia
BACKGROUND AND OBJECTIVES: A recently occurring increase of the prevalence of haemoglobinopathies, β-thalassaemia major (TM) and sickle cell disease (SCD) over the last two decades in our country has generated new needs in terms of medical resources for both prevention and treatment of these patients. Allogeneic haematopoietic stem cell transplant (allo-HSCT) is a curative treatment available for patients who have severe haemoglobinopathies. The main objective of this study was to evaluate the results of allo-HSCT in paediatric patients with TM or SCD performed in paediatric hematopoietic transplant units within the Spanish Group of Bone Marrow Transplantation in Children (GETMON)...
July 9, 2018: Medicina Clínica
https://www.readbyqxmd.com/read/30001730/tanshinone-iia-promotes-the-differentiation-of-bone-marrow-mesenchymal-stem-cells-into-neuronal-like-cells-in-a-spinal-cord-injury-model
#5
Xue-Mei Zhang, Jiao Ma, Yang Sun, Bing-Qian Yu, Zhuo-Min Jiao, Duo Wang, Mei-Yu Yu, Jin-Yue Li, Jin Fu
BACKGROUND: Spinal cord injury (SCI) is one of the most severe central nervous system injuries. Currently, transplanting bone marrow mesenchymal stem cells (BMSCs) is considered a therapeutic option for SCI. Tanshinone IIA (TIIA) is one of the extracts obtained from Salvia miltiorrhiza Bunge, which has been shown to have some protective effects against SCI. The present research was aimed to explore whether TIIA would influence the fate of transplanted BMSCs in a rat model of SCI, especially with regard to their differentiation into neuronal cells...
July 13, 2018: Journal of Translational Medicine
https://www.readbyqxmd.com/read/30001482/constitutive-activation-of-the-nutrient-sensor-mtorc1-in-myeloid-cells-induced-by-tsc1-deletion-protects-mice-from-diet-induced-obesity
#6
Vivian A Paschoal, Thiago Belchior, Mariane T Amano, Marina Burgos-Silva, Albert S Peixoto, Juliana Magdalon, Thayna S Vieira, Maynara L Andrade, Mayara F Moreno, Patricia Chimin, Niels O Câmara, William T Festuccia
SCOPE: To test whether myeloid cells Tsc1 deletion and therefore constitutive activation of the nutrient sensor mTORC1 protects from high-fat diet (HFD)-induced obesity, glucose intolerance and adipose tissue inflammation. METHODS AND RESULTS: Mice with Tsc1 deletion in myeloid cells (MTsc1KO) and littermate controls (MTsc1WT) were fed with HFD for 8 weeks and evaluated for body weight, glucose homeostasis and adipose tissue inflammation. MTsc1KO mice were protected from HFD-induced obesity and glucose intolerance...
July 12, 2018: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/30001476/nivolumab-for-adults-with-hodgkin-s-lymphoma-a-rapid-review-using-the-software-robotreviewer
#7
REVIEW
Marius Goldkuhle, Maria Dimaki, Gerald Gartlehner, Ina Monsef, Philipp Dahm, Jan-Peter Glossmann, Andreas Engert, Bastian von Tresckow, Nicole Skoetz
BACKGROUND: Hodgkin's lymphoma (HL) is a cancer of the lymphatic system, and involves the lymph nodes, spleen and other organs such as the liver, lung, bone or bone marrow, depending on the tumour stage. With cure rates of up to 90%, HL is one of the most curable cancers worldwide. Approximately 10% of people with HL will be refractory to initial treatment or will relapse; this is more common in people with advanced stage or bulky disease. Standard of care for these people is high-dose chemotherapy and autologous stem cell transplantation (ASCT), but only 55% of participants treated with high-dose chemotherapy and ASCT are free from treatment failure at three years, with an overall survival (OS) of about 80% at three years...
July 12, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29999479/comparative-characterization-of-ischemia-induced-brain-multipotent-stem-cells-with-mesenchymal-stem-cells-similarities-and-differences
#8
Rika Sakuma, Ai Takahashi, Akiko Nakano-Doi, Rikako Sawada, Saeko Kamachi, Mikiya Beppu, Toshinori Takagi, Shinichi Yoshimura, Tomohiro Matsuyama, Takayuki Nakagomi
Mesenchymal stem cells (MSCs) are multipotent stem cells localized to the perivascular regions of various organs, including bone marrow (BM). While MSC transplantation represents a promising stem-cell based therapy for ischemic stroke, increasing evidence indicates that exogenously administered MSCs rarely accumulate in the injured central nervous system (CNS). Therefore, compared with MSCs, regionally derived brain multipotent stem cells may be a superior source in order to elicit regeneration of the CNS following ischemic injury...
July 12, 2018: Stem Cells and Development
https://www.readbyqxmd.com/read/29997755/a-survey-of-the-frequency-of-cytomegalovirus-associated-diarrhea-in-immunocompromised-patients-using-a-non-invasive-method
#9
Mahmoud Agholi, Akbar Safaei, Mani Ramzi, Gholam Reza Hatam, Jamal Sarvari
Background and Objectives: Cytomegalovirus (CMV) infection is the most common viral opportunistic infection causing gastrointestinal diseases such diarrhea and colitis in immunocompromised patients. The development and performance of a robust and sensitive PCR assay are usually evaluated to detect CMV DNA in human fecal specimens. In this study, our aim was to detect CMV DNA in stool samples taken from patients with HIV/AIDS, cancer, and transplant recipient patients with chronic and persistent diarrhea using a non-invasive method...
April 2018: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/29996604/-effect-of-mesenchymal-stem-cells-on-expression-of-high-mobility-group-box-1-protein-in-rats-with-ischemia-reperfusion-injury-after-lung-transplantation
#10
L Wei, Z J Han, L Xu, J W Li
Objective: To establish the ischemia reperfusion injury model in rat after lung transplantation(LT) and explore the expression of high mobility group box 1 protein(HMGB1) after intravenous injection with bone marrow mesenchymal stem cells(MSCs). Methods: Forty healthy 8-10 weeks male SD rats were randomly divided into four groups including the sham-operated group, ischemia-reperfusion (IR), Saline-IR and MSC-IR group. The sham-operated rats were only conducted thoracotomy without lung transplantation and the rest groups were respectively conducted with the left LT, left LT followed by 1 ml saline and left LT followed by 1 ml MSCs (1...
July 3, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29993184/bone-marrow-mesenchymal-stem-cells-reduce-ureteral-stricture-formation-in-a-rat-model-via-the-paracrine-effect-of-extracellular-vesicles
#11
Jintai Luo, Shankun Zhao, Jiamin Wang, Lianmin Luo, Ermao Li, Zhiguo Zhu, Yangzhou Liu, Ran Kang, Zhigang Zhao
With no effective therapy to prevent or treat ureteral stricture (US), a multifactorial fibrotic disease after iatrogenic injury of the ureter, the need for new therapies is urgent. Mesenchymal stem cells (MSCs) have been widely studied for treating tissue defects and excessive fibrosis, and recent studies established that one of the main therapeutic vectors of MSCs is comprised in their secretome and represented by extracellular vesicles (EVs). Thus, we have determined to explore the specific role of MSCs-derived EVs (MSC-EVs) treatment in a pre-clinical model of US...
July 11, 2018: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29992932/-differences-in-the-cytocompatibility-of-bone-plastic-materials-from-xenogeneic-hydroxyapatite-with-stem-cells-from-human-exfoliated-deciduous-teeth-and-adipose-tissue-derived-mesenchymal-stem-cells
#12
A V Vasilyev, O A Zorina, R N Magomedov, T B Bukharova, N L Fatkhudinova, E O Osidak, S P Domogatsky, D V Goldstein
AIM: To compare the cytocompatibility of osteoplastic materials used in dentistry with stem cells from human exfoliated deciduous teeth (SHED) and adipose tissue-derived mesenchymal stem cells (AD-MSC). MATERIAL AND METHODS: Materials of the brands 'Bio-Oss', 'Indost', 'Bioplast', 'Viscoll' and 'Trikafor' were selected for study purposes. Cultures of SHED and AD-MSC were used for testing. The cytotoxic effect of the materials was determined using MTT test and vital staining with trypan blue...
2018: Stomatologii︠a︡
https://www.readbyqxmd.com/read/29992675/a-3-year-longitudinal-study-of-skeletal-effects-and-growth-in-children-after-kidney-transplantation
#13
Diana Swolin-Eide, Sverker Hansson, Per Magnusson
This prospective study investigated growth and skeletal development for 3 years after kidney transplantation in pediatric patients, 3.4-15.0 years of age. Growth, BMD, bone resorption markers (CTX and TRACP5b), bone formation markers (PINP, ALP, and osteocalcin), PTH, and vitamin D were assessed at start, 3, 12, and 36 months after transplantation. Median GFR was 63 (range 37-96) mL/min/1.73 m2 after 3 years. The median height SDS increased from -1.7 to -1.1, and median BMI SDS increased from -0.1 to 0...
July 11, 2018: Pediatric Transplantation
https://www.readbyqxmd.com/read/29991091/searching-for-a-cell-based-therapeutic-tool-for-haemophilia-a-within-the-embryonic-foetal-liver-and-the-aorta-gonads-mesonephros-region
#14
Luis J Serrano, Ana Cañete, Tamara Garcia-Leal, Laura Tomás-Gallardo, Ana I Flores, Paz de la Torre, Antonio Liras, María José Sánchez
The development of new strategies based on cell therapy approaches to correct haemophilia A (HA) requires further insights into new cell populations capable of producing coagulation factor VIII (FVIII) and presenting stable engraftment potential. The major producers of FVIII in the adult are liver sinusoidal endothelial cells (LSECs) and in a lesser degree bone marrow-derived cells, both of which have been shown to ameliorate the bleeding phenotype in adult HA mice after transplantation. We have previously shown that cells from the foetal liver (FL) and the aorta-gonads-mesonephros (AGM) haematopoietic locations possess higher LSEC engraftment potential in newborn mice compared with adult-derived LSECs, constituting likely therapeutic targets for the treatment of HA in neonates...
July 10, 2018: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/29990620/activated-platelets-and-leukocyte-activations-in-young-patients-with-%C3%AE-thalassemia-hbe-following-bone-marrow-transplantation
#15
Phatchanat Klaihmon, Surapong Lertthammakiat, Usanarat Anurathapan, Samart Pakakasama, Nongnuch Sirachainan, Suradej Hongeng, Kovit Pattanapanyasat
Bone marrow transplantation (BMT) is the only curable option for thalassemia major, β-thalassemia/HbE. However, some patients still have the risk of hypercoagulable complications. We used a whole blood flow cytometric analysis to measure the circulating microparticle (MP) levels, activated platelets, and leukocyte-platelet aggregates in 59 young β-thalassemia/HbE patients compared with 20- and 28-matched healthy and patients receiving regular blood transfusion (RT), respectively. Results from the studies showed that blood samples from BMT group contained a significantly higher numbers of circulating MPs originated from platelets (ann-V+ CD41a+ ), leukocyte (ann-V+ CD45+ ) and endothelial cells (ann-V+ CD146+ ) when compared to samples from healthy subjects and RT patients...
July 4, 2018: Thrombosis Research
https://www.readbyqxmd.com/read/29987913/stable-overexpression-of-p130-e2f4-affects-the-multipotential-abilities-of-bone-marrow-derived-mesenchymal-stem-cells
#16
Xiwen Zhang, Jianxiao Chen, Airan Liu, Xiuping Xu, Ming Xue, Jingyuan Xu, Yi Yang, Haibo Qiu, Fengmei Guo
Bone-marrow-derived mesenchymal stem cells (MSCs) have great potential in transplantation medicine due to their multiple advantages. However, the controlled differentiation of MSCs is one of the key aspects of effective clinical transplantation. Growing evidence suggests that the cell cycle plays an important role in regulating differentiation, while p130 and E2F4 are key to cell cycle checkpoints. The aim of the study is to evaluate the effects and mechanism of p130/E2F4 on the multidifferentiation of MSCs...
July 10, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29986854/partial-trisomy-21-contributes-to-t-cell-malignancies-induced-by-jak3-activating-mutations-in-murine-models
#17
Paola Rivera-Munoz, Anouchka P Laurent, Aurelie Siret, Cecile K Lopez, Cathy Ignacimouttou, Melanie G Cornejo, Olivia Bawa, Philippe Rameau, Olivier A Bernard, Philippe Dessen, Gary D Gilliland, Thomas Mercher, Sébastien Malinge
JAK3-activating mutations are commonly seen in chronic or acute hematologic malignancies affecting the myeloid, megakaryocytic, lymphoid, and natural killer (NK) cell compartment. Overexpression models of mutant JAK3 or pharmacologic inhibition of its kinase activity have highlighted the role that these constitutively activated mutants play in the T-cell, NK cell, and megakaryocytic lineages, but to date, the functional impact of JAK3 mutations at an endogenous level remains unknown. Here, we report a JAK3A572V knockin mouse model and demonstrate that activated JAK3 leads to a progressive and dose-dependent expansion of CD8+ T cells in the periphery before colonization of the bone marrow...
July 10, 2018: Blood Advances
https://www.readbyqxmd.com/read/29985118/bone-marrow-cell-therapy-and-cardiac-reparability-better-cell-characterization-will-enhance-clinical-success
#18
Khawaja H Haider
Nearly two decades of experimental and clinical research with bone marrow cells have paved the way for Phase III pivotal trials in larger groups of heart patients. Despite immense advancements, a multitude of factors are hampering the acceptance of bone marrow cell-based therapy for routine clinical use. These include uncertainties regarding purification and characterization of the cell preparation, delivery protocols, mechanistic understanding and study end points and their methods of assessment. Clinical data show mediocre outcomes in terms of sustained cardiac pump function...
June 2018: Regenerative Medicine
https://www.readbyqxmd.com/read/29984925/-retrospective-study-of-temporomandibular-joint-dislocation-by-surgical-treatment
#19
Yong-Ming Qiao, Yi-Ming Liu, Rui Li, Jian-Min Gong, Wei He
OBJECTIVE: This study aimed to retrospectively analyze temporomandibular joint dislocation by surgical treatment and evaluate the treatment effect. METHODS: From May 2012 to April 2016, a total of 17 cases of temporomandibular joint dislocation were surgically treated, including 8 cases of irreducible dislocation (ID) and 9 cases of recurrent dislocation (RD). Synovial injection of sclerosing agent by arthroscope was performed in 5 cases, 9 sides; augmentation of the articular eminence by titanium plate implantation was performed in 7 cases, 12 sides; iliac bone transplantation was performed in 1 case, 1 side; Medpore implantation was performed in 3 cases, 6 sides; and eminectomy and capsular tightening were performed in 1 case, 2 sides...
June 1, 2018: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/29984829/impairment-of-bone-marrow-endothelial-progenitor-cells-in-acute-graft-versus-host-disease-patients-after-allotransplant
#20
Xie-Na Cao, Yuan Kong, Yang Song, Min-Min Shi, Hong-Yan Zhao, Qi Wen, Zhong-Shi Lyu, Cai-Wen Duan, Yu Wang, Lan-Ping Xu, Xiao-Hui Zhang, Xiao-Jun Huang
Graft-versus-host disease (GVHD) is a major complication after allogeneic haematopoietic stem cell transplantation (allo-HSCT) that is frequently associated with bone marrow (BM) suppression, and clinical management is challenging. BM endothelial progenitor cells (EPCs) play crucial roles in the regulation of haematopoiesis and thrombopoiesis. However, little is known regarding the functional roles of BM EPCs in acute GVHD (aGVHD) patients. In the current prospective case-control study, reduced and dysfunctional BM EPCs, characterized by decreased migration and angiogenesis capacities and increased levels of reactive oxygen species (ROS) and apoptosis, were found in aGVHD patients compared with those without aGVHD...
July 9, 2018: British Journal of Haematology
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