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https://www.readbyqxmd.com/read/29167980/role-of-isolated-percutaneous-autologous-platelet-concentrate-in-delayed-union-of-long-bones
#1
Gipson Samuel, Jagdish Menon, Sreenivas Thimmaiah, Gayadhar Behera
PURPOSE: The objective of this study is to evaluate the efficacy of percutaneous platelet concentrate (PC) injection in increasing the chances of attaining union in delayed union of long bones and to know whether the time taken for union decreases with use of PC. METHODS: Forty delayed unions (15-30 weeks old) were randomized into a study group in which autologous PC prepared by blood bank centrifuge was percutaneously injected at the fracture site under image intensifier after activation with 10% calcium gluconate and a control group where patients were observed over time...
November 22, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/29167973/renaissance-of-the-autologous-pubovaginal-sling
#2
EDITORIAL
Gamal M Ghoniem, Diaa E E Rizk
No abstract text is available yet for this article.
November 22, 2017: International Urogynecology Journal
https://www.readbyqxmd.com/read/29167725/transdifferentiation-of-human-dental-pulp-stem-cells-into-oligoprogenitor-cells
#3
Ardeshir Moayeri, Maryam Nazm Bojnordi, Sara Haratizadeh, Amir Esmaeilnejad-Moghadam, Rafieh Alizadeh, Hatef Ghasemi Hamidabadi
Introduction: The nerve fibers in central nervous system are surrounded by myelin sheet which is formed by oligodendrocytes. Cell therapy based on oligodendrocytes and their precursors transplantation can hold a promising alternative treatment for myelin sheet repair in demyelinating diseases. Methods: Human Dental Pulp Stem Cells (hDPSCs) are noninvasive, autologous and easy available source with multipotency characteristics, so they are in focus of interest in regenerative medicine...
September 2017: Basic and Clinical Neuroscience
https://www.readbyqxmd.com/read/29167337/differential-immunodominance-hierarchy-of-cd8-t-cell-responses-in-hla-b-27-05-and-b-27-02-mediated-control-of-hiv-1-infection
#4
Emily Adland, Matilda Hill, Nora Lavandier, Anna Csala, Anne Edwards, Fabian Chen, Marek Radkowski, Justyna D Kowalska, Dimitrios Paraskevis, Angelos Hatzakis, Humberto Valenzuela-Ponce, Katja Pfafferott, Ian Williams, Pierre Pellegrino, Persephone Borrow, Masahiko Mori, Jürgen Rockstroh, Julia G Prado, Beatriz Mothe, Judith Dalmau, Javier Martinez-Picado, Gareth Tudor-Williams, John Frater, Anette Stryhn, Soren Buus, Gustavo Reyes Teran, Simon Mallal, Mina John, Susan Buchbinder, Gregory Kirk, Jeffrey Martin, Nelson Michael, Jacques Fellay, Steve Deeks, Bruce Walker, Santiago Avila-Rios, David Cole, Christian Brander, Mary Carrington, Philip Goulder
The well-characterised association between HLA-B*27:05 and protection against HIV disease progression has been linked to immunodominant HLA-B*27:05-restricted CD8+ T-cell responses towards the conserved Gag 263-272 ('KK10') and Pol 901-909 'KY9' epitopes. We here studied the impact of the 3 amino acid differences between HLA-B*27:05 and the closely-related HLA-B*27:02 on the HIV-specific CD8+ T-cell response hierarchy and on immune control of HIV. Genetic epidemiological data indicate that both HLA-B*27:02 and HLA-B*27:05 associate with slower disease progression and lower viral loads...
November 22, 2017: Journal of Virology
https://www.readbyqxmd.com/read/29167233/granzyme-a-in-human-platelets-regulates-the-synthesis-of-proinflammatory-cytokines-by-monocytes-in-aging
#5
Robert A Campbell, Zechariah Franks, Anish Bhatnagar, Jesse W Rowley, Bhanu K Manne, Mark A Supiano, Hansjorg Schwertz, Andrew S Weyrich, Matthew T Rondina
Dysregulated inflammation is implicated in the pathobiology of aging, yet platelet-leukocyte interactions and downstream cytokine synthesis in aging remains poorly understood. Platelets and monocytes were isolated from healthy younger (age <45, n = 37) and older (age ≥65, n = 30) adults and incubated together under autologous and nonautologous conditions. Synthesis of inflammatory cytokines by monocytes, alone or in the presence of platelets, was examined. Next-generation RNA-sequencing allowed for unbiased profiling of the platelet transcriptome in aging...
November 22, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29166346/options-in-acellular-dermal-matrix-device-assembly
#6
Steven Sigalove
Prepectoral prosthetic breast reconstruction has become increasingly popular during the last several years. Original shortcomings and poor outcomes in the 1970s have been overcome with the use of the bioengineered breast concept-namely, use of improved form stable breast implants, autologous fat grafting, and acellular dermal matrices (ADMs). Careful use of these reconstructive tools combined with improved mastectomy skin flaps has lead to successful early outcomes. Prepectoral breast reconstruction mitigates the animation deformities and muscle tightness previously associated with dual-plane prosthetic breast reconstruction while at the same time producing reproducible and outstanding aesthetic outcomes...
December 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29166342/important-considerations-for-performing-prepectoral-breast-reconstruction
#7
Hani Sbitany
Prepectoral breast reconstruction has emerged as an excellent technique for postmastectomy reconstruction, as it allows for full preservation of a patient's pectoralis major muscle and chest wall function. This reduces pain, eliminates animation deformity, and results in high patient satisfaction. Safely performed prepectoral breast reconstruction requires a careful patient selection process before committing to the procedure, taking into account comorbidities, radiation status, and oncologic criteria such as tumor location and breast cancer stage...
December 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29166329/pseudolesions-impersonating-osseous-tumor-involvement-on-both-contrast-enhanced-ct-and-fdg-pet-ct
#8
Jessica K Peterson, Rustain L Morgan, Joseph S Donald, Mark A Perry
A 27-year-old man with stage IV-B Hodgkin's lymphoma status post autologous peripheral stem cell transplant in 2015 with complete response, presented in 2017 with increasing back pain. Restaging contrast enhanced CT demonstrated left brachiocephalic vein occlusion with peripheral nodular high density areas within C7-T2 vertebral bodies with corresponding radiotracer uptake on same day PET/CT. No matching lesion was seen on noncontrast CT. Findings were consistent with pooling of contrast and radiotracer within vertebral venous plexus collaterals at the cervicothoracic junction secondary to brachiocephalic vein occlusion...
November 22, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/29166313/the-perineal-turnover-perforator-flap-a-new-and-simple-technique-for-perineal-reconstruction-after-extralevator-abdominoperineal-excision
#9
Maria Chasapi, Mohamed Maher, Peter Mitchell, Milind Dalal
BACKGROUND: Extralevator abdominoperineal excision (ELAPE) is increasingly used to treat locally advanced low rectal cancer as it has been related to superior oncological outcomes than traditional abdominoperineal excision.However, ELAPE also has been associated with high perineal wound morbidity rates as it creates a larger perineal cavity than standard abdominoperineal excision. This greater defect, along with the effects of preoperative chemoradiation on wound healing, makes uneventful perineal reconstruction post-ELAPE a real challenge for the plastic surgeon...
November 21, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/29166311/the-use-and-delivery-of-stem-cells-in-nerve-regeneration-preclinical-evidence-and-regulatory-considerations
#10
Abdel Armaiz Flores, Huan Wang
Outcomes following peripheral nerve injury remain poor despite the regenerative capacity displayed by the peripheral nervous system. Current therapies are limited and do not provide satisfactory functional recovery in a multitude of cases. Biomaterials have decreased the need for nerve autograft across small nerve gaps in small-caliber nerves, but the lack of a cellular substrate presents a limiting factor to the effectiveness of this therapy. Schwann cells are the supportive cells in the peripheral nervous system and play an integral role in the physiological response and regeneration following nerve injury...
November 21, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/29166306/the-surgical-management-of-nerve-gaps-present-and-future
#11
Samer Bassilios Habre, Grant Bond, Xi Lin Jing, Epameinondas Kostopoulos, Robert D Wallace, Petros Konofaos
Peripheral nerve injuries can result in significant morbidity, including motor and/or sensory loss, which can affect significantly the life of the patient. Nowadays, the gold standard for the treatment of nerve section is end-to-end neurorrhaphy. Unfortunately, in some cases, there is segmental loss of the nerve trunk. Nerve mobilization allows primary repair of the sectioned nerve by end-to-end neurorrhaphy if the gap is less than 1 cm. When the nerve gap exceeds 1 cm, autologous nerve grafting is the gold standard of treatment...
November 21, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/29165749/analysis-of-the-factors-affecting-surgical-site-infection-and-bone-flap-resorption-after-cranioplasty-with-autologous-cryopreserved-bone-the-importance-of-temporalis-muscle-preservation
#12
Sung-Won Jin, Sang-Dae Kim, Sung-Kon Ha, Dong-Jun Lim, Hwa Lee, Hi-Jin You
AIM: A decompressive craniectomy is a potentially life-saving surgical procedure for raised intracranial pressure. Once it has been performed, patients are obliged to undergo a second procedure with cranioplasty. The aim of this study was to investigate the outcomes and associated complications after delayed cranioplasty using autologous, cryopreserved bone. MATERIAL AND METHODS: This retrospective study included 57 consecutive patients treated with cranioplasty with autologous cryopreserved bone for various conditions causing increased intracranial pressure due to brain swelling...
November 1, 2017: Turkish Neurosurgery
https://www.readbyqxmd.com/read/29165229/na%C3%A3-ve-t-cells-are-activated-by-autologous-hcmv-infected-endothelial-cells-through-nkg2d-and-can-control-hcmv-transmission-in-vitro
#13
Narmadha Subramanian, Zeguang Wu, Frank Reister, Kerstin Laib Sampaio, Giada Frascaroli, Luka Cicin-Sain, Thomas Mertens
Apart from classical antigen-presenting cells (APCs) like dendritic cells and macrophages, there are semiprofessional APCs such as endothelial cells (ECs) and Langerhans' cells. Human cytomegalovirus (HCMV) infects a wide range of cell types including the ECs which are involved in the trafficking and homing of T cells. By investigating the interaction of naïve T cells obtained from HCMV-seronegative umbilical cord blood with autologous HCMV-infected human umbilical vein ECs (HUVECs), we could show that the activation of naïve T cells occurred after 1 day of peripheral blood mononuclear cell (PBMC) exposure to HCMV-infected HUVECs...
November 21, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/29164977/a-retrospective-matched-paired-analysis-comparing-bendamustine-containing-beeam-versus-beam-conditioning-regimen-results-from-a-single-center-experience
#14
Khalil Saleh, Alina Danu, Serge Koscielny, Clémence Legoupil, Sylvain Pilorge, Cristina Castilla-Llorente, David Ghez, Julien Lazarovici, Jean-Marie Michot, Nadine Khalife-Saleh, Valerie Lapierre, Kamelia Alenxandrova, Julia Arfi-Rouche, Jean-Henri Bourhis, Vincent Ribrag
The combination of carmustine, etoposide, aracytin, and melphalan(BEAM) conditioning regimen in autologous stem-cell transplantation (ASCT) is widely used in patients with relapsed/refractory non-Hodgkin lymphoma (NHL) and Hodgkin lymphoma. It is also an option in patients with very-high risk aggressive NHL in first complete remission (CR). Recently, a phase Ib-II feasibility study using bendamustine replacing carmustine (BCNU) was reported. We report herein a safety and efficacy analysis of bendamustine-EAM (BeEAM) with a control BEAM counterpart paired cohort (1/2)...
November 22, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/29164530/ultrasound-guided-lateral-medial-transmuscular-quadratus-lumborum-block-for-analgesia-following-anterior-iliac-crest-bone-graft-harvesting-a-clinical-and-anatomical-study
#15
Rakesh V Sondekoppam, Vivian Ip, David F Johnston, Vishal Uppal, Marjorie Johnson, Sugantha Ganapathy, Ban C H Tsui
BACKGROUND: The anterior iliac crest (AIC) is one of the most common sites for harvesting autologous bone, but the associated postoperative pain can result in significant morbidity. Recently, the transmuscular quadratus lumborum block (TQL) has been described to anesthetize the thoraco-lumbar nerves. This study utilizes a combination of cadaveric models and clinical case studies to evaluate the dermatomal coverage and analgesic utility of TQL for AIC bone graft donor site analgesia. METHODS: Ten ultrasound-guided TQL injections were performed in five cadaver specimens using a lateral-to-medial transmuscular approach...
November 21, 2017: Canadian Journal of Anaesthesia, Journal Canadien D'anesthésie
https://www.readbyqxmd.com/read/29162799/structure-based-design-of-native-like-hiv-1-envelope-trimers-to-silence-non-neutralizing-epitopes-and-eliminate-cd4-binding
#16
Daniel W Kulp, Jon M Steichen, Matthias Pauthner, Xiaozhen Hu, Torben Schiffner, Alessia Liguori, Christopher A Cottrell, Colin Havenar-Daughton, Gabriel Ozorowski, Erik Georgeson, Oleksandr Kalyuzhniy, Jordan R Willis, Michael Kubitz, Yumiko Adachi, Samantha M Reiss, Mia Shin, Natalia de Val, Andrew B Ward, Shane Crotty, Dennis R Burton, William R Schief
Elicitation of broadly neutralizing antibodies (bnAbs) is a primary HIV vaccine goal. Native-like trimers mimicking virion-associated spikes present nearly all bnAb epitopes and are therefore promising vaccine antigens. However, first generation native-like trimers expose epitopes for non-neutralizing antibodies (non-nAbs), which may hinder bnAb induction. We here employ computational and structure-guided design to develop improved native-like trimers that reduce exposure of non-nAb epitopes in the V3-loop and trimer base, minimize both CD4 reactivity and CD4-induced non-nAb epitope exposure, and increase thermal stability while maintaining bnAb antigenicity...
November 21, 2017: Nature Communications
https://www.readbyqxmd.com/read/29162791/autologous-artificial-tears-used-for-treatment-of-dry-eye-syndrome-in-patients-with-chronic-graft-versus-host-disease
#17
Jolanta Antoniewicz-Papis, Elżbieta Lachert, Karolina Janik, Magdalena Łętowska
No abstract text is available yet for this article.
October 31, 2017: Polish Archives of Internal Medicine
https://www.readbyqxmd.com/read/29162394/what-is-the-role-of-apheresis-technology-in-stem-cell-transplantation
#18
REVIEW
Ilhami Kiki
Since the demonstration that hematopoietic cells are present in circulating blood, peripheral blood stem cell transplantation (PBSCT) has become an area of interest. The invention of growth factors such as the granulocyte colony-stimulating factor (G-CSF) and the availability of apheresis techniques allowed the wide application of peripheral blood stem cells (PBSC) in both autologous and allogeneic hematopoietic stem cell transplantation settings. It has been since 1986 that clinically introduced, peripheral blood stem cells replaced bone marrow as a stem-cell source to nearly 100% in the autologous and to approximately 75% in the allogeneic transplantation setting...
November 8, 2017: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/29162367/arterial-reconstructions-for-chronic-lower-extremity-ischemia-in-preadolescent-and-adolescent-children
#19
Jonathan L Eliason, Dawn M Coleman, Adam Gumushian, James C Stanley
OBJECTIVE: Chronic lower extremity ischemia in pediatric patients is uncommon. The intent of this study was to better define the arterial reconstructive options and their long-term durability in preadolescent and adolescent children having clinically relevant arterial occlusions affecting the lower extremity. METHODS: The medical records of 33 consecutive pediatric patients who underwent lower extremity revascularization for chronic ischemia at the University of Michigan from 1974 to 2016 were reviewed...
November 18, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29162080/modifications-to-advanced-core-decompression-for-treatment-of-avascular-necrosis-of-the-femoral-head
#20
Stefan Landgraeber, Sebastian Warwas, Tim Claßen, Marcus Jäger
BACKGROUND: "Advanced Core Decompression" (ACD) is a new technique for treatment of osteonecrosis of the femoral head (ONFH) that includes removal of the necrotic tissue using a percutaneous expandable reamer followed by refilling of the drill hole and the defect with an injectable, hard-setting, composite calcium sulphate (CaSO4)-calcium phosphate (CaPO4) bone graft substitute. As autologous bone has been shown to be superior to all other types of bone grafts, the aim of the study is to present and evaluate a modified technique of ACD with impaction of autologous bone derived from the femoral neck into the necrotic defect...
November 21, 2017: BMC Musculoskeletal Disorders
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