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https://www.readbyqxmd.com/read/29777422/patellofemoral-cartilage-repair
#1
REVIEW
Alexandre Barbieri Mestriner, Jakob Ackermann, Andreas H Gomoll
PURPOSE OF REVIEW: This review provides an overview of well-established and newly developed cartilage repair techniques for cartilage defects in the patellofemoral joint (PFJ). An algorithm will be presented for approaching cartilage defects considering the distinct anatomy of both the patellar and trochlear articular surfaces. RECENT FINDINGS: Recent studies on cartilage repair in the PFJ have demonstrated improved outcomes in an attempt to delay or obviate the need for arthroplasty, and improve symptoms in young patients...
May 18, 2018: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/29775645/mesenchymal-stromal-cells-induce-a-permissive-state-in-the-bone-marrow-that-enhances-g-csf-induced-hematopoietic-stem-cell-mobilization-in-mice
#2
Evert-Jan F M de Kruijf, Rob Zuijderduijn, Marjolein C Stip, Willem E Fibbe, Melissa van Pel
Mesenchymal stromal cells (MSC) support hematopoietic stem cells (HSC) in vivo and enhance HSC engraftment and hematopoietic recovery upon co-transplantation with HSC. These data have led to the hypothesis that MSC may impact the HSC niche, leading to changes in HSC retention and trafficking. We studied the effect of MSC administration on the HSC compartment in the bone marrow (BM) in mice. Following injection of MSC, HSC numbers in the BM were decreased coinciding with an increased cell cycle activity compared to PBS-injected controls...
May 15, 2018: Experimental Hematology
https://www.readbyqxmd.com/read/29772816/alpha-mannosidosis-therapeutic-strategies
#3
REVIEW
Maria Rachele Ceccarini, Michela Codini, Carmela Conte, Federica Patria, Samuela Cataldi, Matteo Bertelli, Elisabetta Albi, Tommaso Beccari
Alpha-mannosidosis (α-mannosidosis) is a rare lysosomal storage disorder with an autosomal recessive inheritance caused by mutations in the gene encoding for the lysosomal α-d-mannosidase. So far, 155 variants from 191 patients have been identified and in part characterized at the biochemical level. Similarly to other lysosomal storage diseases, there is no relationship between genotype and phenotype in alpha-mannosidosis. Enzyme replacement therapy is at the moment the most effective therapy for lysosomal storage disease, including alpha-mannosidosis...
May 17, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29769264/rhoa-g17v-is-sufficient-to-induce-autoimmunity-and-promotes-t-cell-lymphomagenesis-in-mice
#4
Samuel Y Ng, Leon Brown, Kristen Stevenson, Tiffany deSouza, Jon C Aster, Abner Louissaint, David M Weinstock
Patients with angioimmunoblastic T-cell lymphoma (AITL) and other peripheral T-cell lymphomas (PTCL) that harbor features of follicular helper T (TFH) cells have a very poor prognosis. These lymphomas commonly present with paraneoplastic autoimmunity and lymphopenia. RhoA G17V mutation is present in 60% of TFH-like lymphomas but its role in tumorigenesis is poorly understood. We generated transgenic mice that express RhoA G17V under the control of murine CD4 regulatory elements at levels comparable to a heterozygous mutation (tgRhoA mice)...
May 16, 2018: Blood
https://www.readbyqxmd.com/read/29767235/inhibition-of-microrna%C3%A2-16-protects-mesenchymal-stem-cells-against-apoptosis
#5
Jiang Rui, Shaohong Fang, Yongchen Wang, Bo Lv, Bo Yu, Shufeng Li
Bone marrow‑derived mesenchymal stem cells (BM‑MSCs) have been used in experimental research and clinical trials for heart function restoration and cardiomyocyte regeneration. However, due to a hostile microenvironment created by ischemia, hypoxia and pro‑inflammatory factors, the survival rate of implanted BM‑MSCs remains low. Therefore, strategies that can promote BM‑MSC survival and prevent apoptosis are required. Previous studies have reported that microRNA‑16 (miR‑16) can inhibit cell proliferation by targeting several proteins and signal pathway, not only by inducing apoptosis...
May 11, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29763694/corneal-fluorescein-staining-and-ocular-symptoms-but-not-schirmer-test-are-useful-as-indicators-of-response-to-treatment-in-chronic-ocular-gvhd
#6
Francisco Amparo, Hasanain Shikari, Ujwala Saboo, Reza Dana
PURPOSE: To evaluate long-term ocular surface clinical signs and symptoms response to therapy in patients with chronic ocular GVHD. METHODS: Retrospective review and data modeling. We reviewed the records of post-bone marrow transplantation patients who were newly diagnosed with ocular GVHD and initiated therapy, and analyzed changes in symptoms (Ocular Surface Disease Index [OSDI]; Symptom Assessment in Dry Eye [SANDE]) and signs (corneal fluorescein staining [CFS]; Schirmer test)...
May 12, 2018: Ocular Surface
https://www.readbyqxmd.com/read/29762163/transcriptional-gene-silencing-limits-cxcr4-associated-depletion-of-bone-marrow-cd34-cells-in-hiv-1-infection
#7
Tetsuo Tsukamoto
OBJECTIVES: Hematological abnormalities that include changes in bone marrow, such as in anemia and pancytopenia, are common among human immunodeficiency virus (HIV)-infected patients, particularly in the advanced stage of disease. Such abnormalities may be caused by a reduced bone marrow function for hematopoiesis. This aim of this study was to determine whether transcriptional gene silence can help to preserve the hosts' hematopoietic potential in addition to peripheral CD4 T cells against CCR5-tropic HIV infection...
May 11, 2018: AIDS
https://www.readbyqxmd.com/read/29758548/stromal-cell-derived-factor-sdf-1-alpha-overexpression-promotes-bone-regeneration-by-osteogenesis-and-angiogenesis-in-osteonecrosis-of-the-femoral-head
#8
Fan Yang, Feng Xue, Junjie Guan, Zeng Zhang, Jimin Yin, Qingling Kang
BACKGROUND/AIMS: Osteonecrosis of the femoral head (ONFH) is a devastating orthopedic disease. Previous studies suggested that stromal-cell-derived factor (SDF)-1 was involved in osteogenesis and angiogenesis. However, whether SDF-1 potentiates the angiogenesis and osteogenesis of bone marrow-derived stromal stem cells (BMSCs) in ONFH is not clear. METHODS: BMSCs were transfected with green fluorescent protein (GFP) or the fusion gene encoding GFP and SDF-1α, and transgenic efficacy was monitored by immunofluorescence...
May 7, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29753837/status-of-nk-cell-recovery-in-day-21-bone-marrow-after-allogeneic-hematopoietic-stem-cell-transplantation-predicts-clinical-outcome
#9
Norimichi Hattori, Bungo Saito, Yohei Sasaki, Shotaro Shimada, So Murai, Maasa Abe, Yuta Baba, Megumi Watanuki, Shun Fujiwara, Yukiko Kawaguchi, Nana Arai, Nobuyuki Kabasawa, Hiroyuki Tsukamoto, Yui Uto, Hirotsugu Ariizumi, Kouji Yanagisawa, Hiroshi Harada, Tsuyoshi Nakamaki
Rapid immune recovery following allogeneic hematopoietic stem cell transplantation (allo-HSCT) is important for clinical outcome prediction. In most studies, immune recovery after allo-HSCT has been monitored via peripheral blood. However, few reports regarding the status of absolute lymphocyte subsets in the bone marrow (BM) microenvironment have been undertaken. Therefore, we evaluated the clinical impact of immune recovery in the early period following allo-HSCT using BM samples. We showed that delayed natural killer (NK) cell recovery was independently associated with a poor prognosis for overall survival (hazard ratio (HR), 3...
May 10, 2018: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/29752089/hucmsc-derived-exosomes-promote-functional-recovery-in-spinal-cord-injury-mice-via-attenuating-inflammation
#10
Guodong Sun, Guangqiang Li, Dehai Li, Wanjun Huang, Renwen Zhang, Hua Zhang, Yuanyuan Duan, Baocheng Wang
The exploration of effective spinal cord injury (SCI) healing still remain a great challenge due to the high morbidity, complex pathology and unclear targets. Human umbilical cord mesenchymal stem cells (hucMSC) play an important role in tissue regeneration. However, transplanting stem cells has a potential risk of teratogenicity. Recent studies have suggested that exosomes secreted by stem cells may contribute to tissue injury repair. We hypothesized that the application of hucMSC derived exosomes may be a potential way for SCI treatment...
August 1, 2018: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/29747695/a-case-report-of-granulomatous-amoebic-encephalitis-by-group-1-acanthamoeba-genotype-t18-diagnosed-by-the-combination-of-morphological-examination-and-genetic-analysis
#11
Takahiro Matsui, Tetsuo Maeda, Shinsuke Kusakabe, Hideyuki Arita, Kenji Yagita, Eiichi Morii, Yuzuru Kanakura
BACKGROUND: The diagnosis of granulomatous amoebic encephalitis is challenging for clinicians because it is a rare and lethal disease. Previous reports have indicated that Acanthamoeba with some specific genotypes tend to cause the majority of human infections. We report a case of granulomatous amoebic encephalitis caused by Acanthamoeba spp. with genotype T18 in an immunodeficient patient in Japan after allogenic bone marrow transplantation, along with the morphological characteristics and genetic analysis...
May 10, 2018: Diagnostic Pathology
https://www.readbyqxmd.com/read/29743364/t-cell-derived-lymphotoxin-is-essential-for-anti-hsv-1-humoral-immune-response
#12
Kaiting Yang, Yong Liang, Zhichen Sun, Diyuan Xue, Hairong Xu, Mingzhao Zhu, Yang-Xin Fu, Hua Peng
B cell-derived lymphotoxin (LT) is required for the development of follicular dendritic cell clusters for the formation of primary and secondary lymphoid follicles, but the role of T cell-derived LT in antibody response has not been well demonstrated. We observed that lymphotoxin-β-receptor (LTβR) signaling is essential for optimal humoral immune response and protection against an acute HSV-1 infection. Blocking the LTβR pathway caused poor maintenance of germinal center B (GC-B) cells and follicular helper T (Tfh) cells...
May 9, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29731882/autologous-stem-cell-transplantation-in-ebv-positive-post-renal-transplant-refractory-multiple-myeloma-a-case-report-and-literature-review
#13
Xiaobao Xie, Yan Lin, Yang Cao, Weimin Dong, Wei Wu, Yuandong Zhu, Deliang Liu, Haiqian Li, Qing Li, Weiying Gu
Renal transplant recipients exhibit an increased risk of developing plasma cell neoplasms (PCNs; comprising multiple myeloma and plasmacytoma); however, multiple myeloma manifesting with refractory extramedullary plasmacytomas associated with Epstein-Barr virus are markedly rare in these patients. In the present case report, an unusual case of refractory multiple myeloma with multiple extramedullary plasmacytoma (including liver, vertebrae, breast, muscle, skin and soft tissues) was presented. The patient exhibited mild bone marrow infiltration which was successfully treated with novel agents, including bortezomib and lenalidomide, followed by autologous stem cell transplantation (ASCT)...
May 2018: Oncology Letters
https://www.readbyqxmd.com/read/29722764/platelet-rich-plasma-and-mesenchymal-stem-cells-exciting-but-%C3%A2-are-we-there-yet
#14
Isabel Andia, Jose I Martin, Nicola Maffulli
Joint conditions incapacitate free movement driving to a sedentary lifestyle, a major risk factor for chronic diseases. Regenerative procedures, involving the use of mesenchymal stem/stromal cells along with platelet-rich plasma (PRP), can help patients with these conditions. We describe the main characteristics of cellular products (bone marrow concentrate, stromal vascular fraction of adipose tissue, and mesenchymal stem/stromal cells derived from these tissues), and the potential benefits of combination with PRP in 3 scenarios: PRP lysates used during laboratory cell expansion; PRP to prime cellular products or the host tissue before cell implantation; PRP used as a vehicle for cell transplantation and to provide trophic signals...
June 2018: Sports Medicine and Arthroscopy Review
https://www.readbyqxmd.com/read/29720263/early-passaging-of-mesenchymal-stem-cells-does-not-instigate-significant-modifications-in-their-immunological-behavior
#15
Niketa Sareen, Glen Lester Sequiera, Rakesh Chaudhary, Ejlal Abu-El-Rub, Subir Roy Chowdhury, Vikram Sharma, Arun Surendran, Meenal Moudgil, Paul Fernyhough, Amir Ravandi, Sanjiv Dhingra
BACKGROUND: Bone marrow-derived allogeneic mesenchymal stem cells (MSCs) from young healthy donors are immunoprivileged and their clinical application for regenerative medicine is under evaluation. However, data from preclinical and initial clinical trials indicate that allogeneic MSCs after transplantation provoke a host immune response and are rejected. In the current study, we evaluated the effect of an increase in passage number in cell culture on immunoprivilege of the MSCs. Since only limited numbers of MSCs can be sourced at a time from a donor, it is imperative to expand them in culture to meet the necessary numbers required for cell therapy...
May 2, 2018: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29700361/human-limbal-niche-cells-are-a-powerful-regenerative-source-for-the-prevention-of-limbal-stem-cell-deficiency-in-a-rabbit-model
#16
Guigang Li, Yuan Zhang, Subo Cai, Ming Sun, Juan Wang, Shen Li, Xinyu Li, Sean Tighe, Shuangling Chen, Huatao Xie, Yingting Zhu
In this article, human limbal niche cells (LNC) or bone marrow derived mesenchymal stem cells (BMMSC) were used to prevent limbal stem cell deficiency (LSCD) in an alkali burn rabbit model and their results were compared. The epithelial cell defect area, corneal neovascularization, and the print cell cytometry were quantified to grade the severity of LSCD. Three months after the alkali burn, a partial LSCD was observed in the control group (no treatment) indicated by chronic corneal epithelial defects, positive corneal fluorescein staining, neovascularization and goblet cell migration...
April 26, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29695588/mindin-deficiency-in-macrophages-protects-against-foam-cell-formation-and-atherosclerosis-by-targeting-lxr-%C3%AE
#17
Cheng Zhang, Juan-Juan Qin, Fu-Han Gong, Jing-Jing Tong, Wen-Lin Cheng, Haiping Wang, Yan Zhang, Xueyong Zhu, Zhi-Gang She, Hao Xia, Li-Hua Zhu
Abstract Background - Mindin, which is a highly conserved ECM protein, has been documented to play pivotal roles in regulating angiogenesis, inflammatory processes and immune responses. The aim of this study was to assess whether mindin contributes to the development of atherosclerosis. Methods and Results - A significant upregulation of Mindin expression was observed in the serum, arteries and atheromatous plaques of ApoE-/-  mice after HFD treatment. Mindin-/- ApoE-/- mice and macrophage-specific mindin overexpression in ApoE-/- mice (Lyz2-mindin-TG) were generated to evaluate the effect of mindin on the development of atherosclerosis...
April 25, 2018: Clinical Science (1979-)
https://www.readbyqxmd.com/read/29681513/antimicrobial-consumption-and-resistance-in-adult-hospital-inpatients-in-53-countries-results-of-an-internet-based-global-point-prevalence-survey
#18
Ann Versporten, Peter Zarb, Isabelle Caniaux, Marie-Françoise Gros, Nico Drapier, Mark Miller, Vincent Jarlier, Dilip Nathwani, Herman Goossens
BACKGROUND: The Global Point Prevalence Survey (Global-PPS) established an international network of hospitals to measure antimicrobial prescribing and resistance worldwide. We aimed to assess antimicrobial prescribing and resistance in hospital inpatients. METHODS: We used a standardised surveillance method to collect detailed data about antimicrobial prescribing and resistance from hospitals worldwide, which were grouped by UN region. The internet-based survey included all inpatients (adults, children, and neonates) receiving an antimicrobial who were on the ward at 0800 h on one specific day between January and September, 2015...
April 19, 2018: Lancet Global Health
https://www.readbyqxmd.com/read/29678638/comprehensive-analysis-of-the-activation-and-proliferation-kinetics-and-effector-functions-of-human-lymphocytes-and-antigen-presentation-capacity-of-antigen-presenting-cells-in-xenogeneic-graft-versus-host-disease
#19
Yasufumi Kawasaki, Kazuya Sato, Hiroko Hayakawa, Norihito Takayama, Hirofumi Nakano, Ryoji Ito, Kiyomi Mashima, Iekuni Oh, Daisuke Minakata, Ryoko Yamasaki, Kaoru Morita, Masahiro Ashizawa, Chihiro Yamamoto, Kaoru Hatano, Shin-Ichiro Fujiwara, Ken Ohmine, Kazuo Muroi, Yoshinobu Kanda
Xenogeneic graft-versus-host disease (GVHD) models in highly immunodeficient mice are currently being used worldwide to investigate human immune responses against foreign antigens in vivo. However, the individual roles of CD4+ and CD8+ T-cells, and donor/host hematopoietic and non-hematopoietic antigen-presenting cells (APCs) in the induction and development of GVHD have not been fully investigated. In the present study, we comprehensively investigated the immune responses of human T-cells and the antigen presentation capacity of donor/host hematopoietic and non-hematopoietic APCs in xenogeneic GVHD models using NOD/Shi-scid-IL2rgnull (NOG) mice...
April 17, 2018: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/29673308/withdrawn-allogeneic-stem-cell-transplantation-in-fanconi-anemia-and-other-inherited-bone-marrow-failure-disorders
#20
(no author information available yet)
Withdrawn by the publisher.
April 19, 2018: Current Drug Targets
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