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https://www.readbyqxmd.com/read/28437223/exercise-and-peripheral-nerve-grafts-as-a-strategy-to-promote-regeneration-after-acute-or-chronic-spinal-cord-injury
#1
Catherine C Theisen, Rahul Sachdeva, Scarett Austin, Danielle Kulich, Victoria Kranz, John D Houle
Therapeutic interventions after spinal cord injury (SCI) routinely are designed to address multiple aspects of the primary and/or secondary damage that occurs. Exercise has a demonstrated efficacy for post-SCI complications such as cardiovascular dysfunction, neuropathic pain and chronic inflammation yet there is little understanding of the mechanisms by which improvements might result from this non-invasive approach. Here we review several of our observations of molecular and cellular changes within the injured spinal cord following acute or delayed exercise regimens that illustrate the potential for positive effects on neuroprotection and rehabilitation...
February 11, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28435308/association-of-the-ppp3ca-c-249g-a-variant-with-clinical-outcomes-of-tacrolimus-based-therapy-in-kidney-transplant-recipients
#2
Patricia C Salgado, Fabiana Dv Genvigir, Claudia R Felipe, Helio Tedesco-Silva, Jose O Medina-Pestana, Sonia Q Doi, Mario H Hirata, Rosario Dc Hirata
BACKGROUND: The effects of genetic variants related to the pharmacodynamic mechanisms of immunosuppressive drugs on their therapeutic efficacy and safety have been poorly explored. This study was performed to investigate the influence of the PPP3CA c.249G>A variant on the clinical outcomes of kidney transplant recipients. PATIENTS AND METHODS: A total of 148 Brazilian patients received tacrolimus (TAC)-based immunosuppressive therapy for 90 days post-kidney transplantation...
2017: Pharmacogenomics and Personalized Medicine
https://www.readbyqxmd.com/read/28433384/cold-ischemia-time-up-to-16-hours-has-little-impact-on-living-donor-kidney-transplant-outcomes-in-the-era-of-kidney-paired-donation
#3
Jagbir Gill, Caren Rose, Yayuk Joffres, Matthew Kadatz, John Gill
In living donor transplantation, cold ischemia time is a concern in transplants involving kidney paired donation. The impact of cold ischemia time over eight hours is unknown. Here we examined the association of cold ischemia time with delayed graft function and allograft loss among 48,498 living recipients in the Scientific Registry of Transplant Recipients registry. The incidence of delayed graft function was low but significantly higher among patients with longer cold ischemia times (0-2.0 hours: 3.3%; 2...
April 19, 2017: Kidney International
https://www.readbyqxmd.com/read/28410362/joint-assessment-of-donor-and-recipient-htert-gene-polymorphism-provides-additional-information-for-early-kidney-transplantation-outcomes
#4
Karolina Kłoda, Artur Mierzecki, Leszek Domański, Ewa Borowiecka, Krzysztof Safranow, Andrzej Ciechanowicz, Kazimierz Ciechanowski
BACKGROUND There are several genes and genetic loci affecting telomere length, including hTERT gene and BICD1 gene as well as polymorphisms within chromosome 18. It has been demonstrated that the age of the donor is a negative factor associated with long-term kidney allograft function, and that post-transplant complications accelerate transplanted organ aging, thus contributing to estimated glomerular filtration rate (eGFR) decreases. The aim of this study was a joint assessment of donors' and recipients' hTERT and BICD1 genes as well as chromosome 18 polymorphisms with regard to early kidney transplantation outcomes...
April 14, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28399392/the-use-of-acellular-urinary-bladder-matrix-as-coverage-for-fasciocutaneous-free-flap-donor-sites-an-alternative-to-traditional-grafting-procedures
#5
James C Melville, Nicholas A Bennetts, Lauro Tijerina, Jonathan W Shum
PURPOSE: The purpose of this review is to 1) evaluate our early experience with urinary bladder matrix as a dressing for the management of complex wounds subsequent to fasciocutaneous or osteocutaneous vascularized tissue harvests, 2) assess coverage of exposed tendons and the duration of granulation and epithelial coverage, and 3) assess esthetic and functional outcomes compared with traditional means for the management of vascularized tissue harvest sites. PATIENTS AND METHODS: This prospective study consisted of 8 consecutive patients in whom a substantial cutaneous component was harvested as part of a vascularized tissue reconstruction, which did not permit for primary closure (n = 7) or had skin graft failure (exposed tendon) that required additional treatment (n = 1)...
March 18, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28398965/a-novel-approach-in-combined-liver-and-kidney-transplantation-with-long-term-outcomes
#6
Burcin Ekser, Richard S Mangus, W Fridell, Chandrashekhar A Kubal, Shunji Nagai, Sandra B Kinsella, Demetria R Bayt, Teresa M Bell, John A Powelson, William C Goggins, A Joseph Tector
OBJECTIVE: The aim of this study was to compare the outcomes of simultaneous and delayed implantation of kidney grafts in combined liver-kidney transplantation (CLKT). BACKGROUND DATA: Delayed function of the renal graft (DGF), which can result from hypotension and pressor use related to the liver transplantation (LT), may cause worse outcomes in CLKT. METHODS: A total of 130 CLKTs were performed at Indiana University between 2002 and 2015 and studied in an observational cohort study...
May 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28397407/sanguinate-pegylated-carboxyhemoglobin-bovine-mechanism-of-action-and-clinical-update
#7
Abraham Abuchowski
Historically, blood substitutes were under development that would provide oxygen carrying capacity as well as fluid replacement for both trauma and surgical indications. Their development was halted by the inability of the products to deliver therapeutic amounts of oxygen targeted to hypoxic tissue as well as from the inherent toxicity of the molecules. This led to the concept of an oxygen therapeutic that would be targeted for indications caused by anemia/ischemia/hypoxia but would not exhibit the toxicity that plagued earlier products...
April 2017: Artificial Organs
https://www.readbyqxmd.com/read/28387564/reliability-of-functioning-free-muscle-transfer-and-vascularized-ulnar-nerve-grafting-for-elbow-flexion-in-complete-brachial-plexus-palsy
#8
S M Potter, S I Ferris
We compared outcomes of primary vascularized ulnar nerve grafts from the C5 root neurotizing biceps and brachialis muscles, and gracilis functioning free muscle transfer neurotized by the distal spinal accessory nerve, as a primary or salvage procedure after complete brachial plexus injury. At 45 months, three of eight primary vascularized ulnar nerve graft patients regained grade 4 elbow flexion, while one regained grade 3. All 13 primary gracilis transfer patients regained grade 4 elbow flexion. Four patients with vascularized ulnar nerve grafts failed and subsequently had salvage functioning free muscle transfer procedures resulting in delayed recovery...
April 1, 2017: Journal of Hand Surgery, European Volume
https://www.readbyqxmd.com/read/28384651/surgical-treatment-of-subungual-squamous-cell-carcinoma-by-wide-excision-of-the-nail-unit-and-skin-graft-reconstruction-an-evaluation-of-treatment-efficiency-and-outcomes
#9
Solène Topin-Ruiz, Catherine Surinach, Stéphane Dalle, Gérard Duru, Brigitte Balme, Luc Thomas
Importance: The best surgical treatment modalities for subungual squamous cell carcinoma (SUSCC) without bone invasion need to be determined. The limited available data on Mohs micrographic surgery do not demonstrate its use as a standard procedure. A previous study in a limited series of patients has shown that wide surgical excision of the nail unit was associated with a low rate of recurrence. Objectives: To confirm the efficiency of wide surgical excision of the nail unit with full-thickness skin graft reconstruction on a series of patients with SUSCC with an extended follow-up and to evaluate short- and long-term postoperative morbidity and patient satisfaction...
April 5, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28376778/outcomes-for-primary-kidney-transplantation-from-donation-after-citizens-death-in-china-a-single-center-experience-of-367-cases
#10
Wujun Xue, Puxun Tian, Heli Xiang, Xiaoming Ding, Xiaoming Pan, Hang Yan, Jun Hou, Xinshun Feng, Linjuan Liu, Chenguang Ding, Xiaohui Tian, Yang Li, Jin Zheng
BACKGROUND: The cases of donation after brain death followed by circulatory death (DBCD) and donation after cardiac death (DCD) have been increased year by year in China. Further research is needed to understand in the outcomes and risk factors of delayed graft function (DGF) in order to minimize the risk of DGF and ameliorate its potential impact on long-term outcomes. This study was to explore the differences in outcomes between DBCD and DCD transplant and the main risk factors for DGF in DBCD...
April 4, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28363292/a-3-phase-approach-for-the-management-of-upper-extremity-electrical-injuries
#11
REVIEW
Ketan Sharma, Miles Bichanich, Amy M Moore
Upper extremity electrical injuries present with unique pathophysiologic considerations due to the differing mechanisms of injury produced by the electromagnetic field. The initial phase of treatment consists of recognition of other life-threatening injuries, stabilization of patients, and multisystem resuscitation. The second phase of treatment consists of excising devitalized tissue, appropriate wound care to prevent delayed infection, providing temporary and definitive coverage over vital structures, and preventing contracture and joint stiffness via aggressive therapy...
May 2017: Hand Clinics
https://www.readbyqxmd.com/read/28340829/impact-of-prophylaxis-vs-pre-emptive-approach-for-cytomegalovirus-infection-in-kidney-transplant-recipients
#12
O Kır, A Zeytinoğlu, B Arda, M Yılmaz, G Aşçı, H Töz
Cytomegalovirus (CMV) is the most common viral infection during the post-transplant period, and it is one of the major causes of morbidity and mortality in kidney transplantation. In this study, the incidence and impact of pre-emptive and prophylactic approaches and long-term effects on graft and patient survival of CMV infection were investigated. Among 493 adult kidney transplant recipients, pretransplant CMV IgG-negative patients and patients with a follow-up shorter than a month were excluded. The patients were divided into 2 groups: pre-emptive group (n = 187, regular screening and acyclovir 400 mg twice daily for 6 months), and prophylaxis group (n = 275, valganciclovir 450 mg/d for 3 months)...
April 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28340819/influence-of-proton-pump-inhibitors-on-mycophenolic-acid-pharmacokinetics-in-patients-with-renal-transplantation-and-the-relationship-with-cytochrome-2c19-gene-polymorphism
#13
H S Ciftci, M S Karadeniz, T Tefik, Y Caliskan, H Yazıcı, E Demir, A Turkmen, I Nane, F S Oguz, F Aydin
BACKGROUND: Most patients have serious digestive complications after renal transplantation. Therefore, it is important to protect gastrointestinal function to improve the survival rate of transplant patients. Proton pump inhibitors (PPIs) such as lansoprazole and rabeprazole are widely administered to renal transplant patients with mycophenolic acid (MPA) in the perioperative period. PPIs are metabolized by cytochrome (CYP) 2C19 enzymes. Mycophenolate sodium (MYF) and mycophenolate mofetil (MMF) have been used in immunosuppression...
April 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28340818/use-of-atg-fresenius-as-an-induction-agent-in-deceased-donor-kidney-transplantation
#14
M Yilmaz, T Ö Sezer, O Kir, A Öztürk, C Hoşcoşkun, H Töz
BACKGROUND: Anti-T-lymphocyte globulins (ATG) are most commonly used as induction agents in kidney transplantation (KT). In this study, we investigated the use of ATG as induction therapy in deceased-donor KT. METHODS: Among 152 deceased-donor KT recipients transplanted between January 2009 and December 2003, 147 with exact data were enrolled in this study. Delayed graft function was defined as dialysis requirement after KT. Greater than 10% panel-reactive antibody (PRA) was considered as positive...
April 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28331061/an-intracellular-matrix-metalloproteinase-2-isoform-induces-tubular-regulated-necrosis-implications-for-acute-kidney-injury
#15
Carla S Ceron, Celine Baligand, Sunil K Joshi, Shaynah Wanga, Patrick M Cowley, Joy P Walker, Sang Heon Song, Rajeev Mahimkar, Anthony J Baker, Robert L Raffai, Zhen J Wang, David H Lovett
Acute kidney injury (AKI) causes severe morbidity, mortality, and chronic kidney disease (CKD). Mortality is particularly marked in the elderly and with pre-existing CKD. Oxidative stress is a common theme in models of AKI induced by ischemia/reperfusion (I/R) injury. We recently characterized an intracellular isoform of matrix metalloproteinase-2 (MMP-2) induced by oxidative stress-mediated activation of an alternate promoter in the first intron of the MMP-2 gene. This generates an N-terminal truncated MMP-2 isoform (NTT-MMP-2) that is intracellular and associated with mitochondria...
March 22, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28327692/immediate-immediate-delayed-6%C3%A2-weeks-and-delayed-4%C3%A2-months-post-extractive-single-implants-1-year-post-loading-data-from-a-randomised-controlled-trial
#16
Marco Esposito, Giovanni Zucchelli, Gioacchino Cannizzaro, Luigi Checchi, Carlo Barausse, Anna Trullenque-Eriksson, Pietro Felice
PURPOSE: To compare the clinical outcome of single implants placed immediately after tooth extraction with implants placed 6 weeks after tooth extraction (immediate-delayed placement), and with implants placed after 4-month extraction and socket healing (delayed placement). MATERIALS AND METHODS: Two-hundred and ten (210) patients requiring a single implant-supported crown to replace a tooth to be extracted were randomised to receive immediate post-extractive implants (70 patients), immediate-delayed implants at 6 weeks (70 patients), and delayed implants after 4 months of healing (70 patients) according to a parallel group design...
2017: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/28323775/inadequate-antioxidative-responses-in-kidneys-of-brain-dead-rats
#17
Dane Hoeksma, Rolando A Rebolledo, Maximilia Hottenrott, Yves S Bodar, Janneke J Wiersema-Buist, Harry Van Goor, Henri G D Leuvenink
BACKGROUND: Brain death (BD)-related lipid peroxidation, measured as serum malondialdehyde (MDA) levels, correlates with delayed graft function in renal transplant recipients. How BD affects lipid peroxidation is not known. The extent of BD-induced organ damage is influenced by the speed at which intracranial pressure increases. To determine possible underlying causes of lipid peroxidation, we investigated the renal redox balance by assessing oxidative and antioxidative processes in kidneys of brain-dead rats after fast and slow BD induction...
April 2017: Transplantation
https://www.readbyqxmd.com/read/28320508/staged-minimally-invasive-plate-osteosynthesis-of-proximal-tibial-fractures-with-acute-compartment-syndrome
#18
Joon-Woo Kim, Chang-Wug Oh, Jong-Keon Oh, Hee-Soo Kyung, Kyeong-Hyeon Park, Hee-June Kim, Jae-Wook Jung, Young-Soo Jung
PURPOSE: High-energy proximal tibial fractures often accompany compartment syndrome and are usually treated by fasciotomy with external fixation followed by secondary plating. However, the initial soft tissue injury may affect bony union, the fasciotomy incision or external fixator pin sites may lead to postoperative wound infections, and the staged procedure itself may adversely affect lower limb function. We assess the results of staged minimally invasive plate osteosynthesis (MIPO) for proximal tibial fractures with acute compartment syndrome...
March 11, 2017: Injury
https://www.readbyqxmd.com/read/28316087/influence-of-abcc2-cyp2c8-and-cyp2j2-polymorphisms-on-tacrolimus-and-mycophenolate-sodium-based-treatment-in-brazilian-kidney-transplant-recipients
#19
Fabiana D V Genvigir, Alvaro M Nishikawa, Claudia R Felipe, Helio Tedesco-Silva, Nagilla Oliveira, Antony B C Salazar, Jose O Medina-Pestana, Sonia Q Doi, Mario H Hirata, Rosario D C Hirata
STUDY OBJECTIVE: To investigate the influence of single nucleotide polymorphisms (SNPs) in genes encoding metabolizing enzymes (CYP2C8, CYP2J2, and UGT2B7) and transporters (ABCC2 and ABCG2) on dose and/or dose-adjusted trough blood concentrations (C/D ratio), clinical outcomes, and occurrence of adverse events of tacrolimus and mycophenolate sodium in Brazilian kidney transplant recipients. DESIGN: Pharmacogenetic analysis of patients enrolled in a previously published study...
March 17, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/28298633/specific-expression-of-heme-oxygenase-1-by-myeloid-cells-modulates-renal-ischemia-reperfusion-injury
#20
Maxime Rossi, Antoine Thierry, Sandrine Delbauve, Nicolas Preyat, Miguel P Soares, Thierry Roumeguère, Oberdan Leo, Véronique Flamand, Alain Le Moine, Jean-Michel Hougardy
Renal ischemia-reperfusion injury (IRI) is a major risk factor for delayed graft function in renal transplantation. Compelling evidence exists that the stress-responsive enzyme, heme oxygenase-1 (HO-1) mediates protection against IRI. However, the role of myeloid HO-1 during IRI remains poorly characterized. Mice with myeloid-restricted deletion of HO-1 (HO-1(M-KO)), littermate (LT), and wild-type (WT) mice were subjected to renal IRI or sham procedures and sacrificed after 24 hours or 7 days. In comparison to LT, HO-1(M-KO) exhibited significant renal histological damage, pro-inflammatory responses and oxidative stress 24 hours after reperfusion...
March 15, 2017: Scientific Reports
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