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https://www.readbyqxmd.com/read/28926770/1-25-oh-2d3-induces-regulatory-t-cell-differentiation-by-influencing-the-vdr-plc-%C3%AE-1-tgf-%C3%AE-1-pathway
#1
Qiang Zhou, Shengying Qin, Jinyan Zhang, Lin Zhon, Zhihai Pen, Tonghai Xing
Vitamin D has been recommended as an immune modulator in recent years, in addition to regulating calcium-phosphorous-bone metabolism. Clinical studies on organ transplantation found that vitamin D sufficiency patients were less likely to develop acute cellular rejection within one year after transplantation compared to those with vitamin D deficiency. Thus, a high percentage of regulatory T cells might play a key role in preventing acute cellular rejection (ACR). In this report, we studied the specific effects of 1,25(OH)2D3 on human T cell diff ;erentiation, and determined the potential molecule mechanism behind...
September 16, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28926521/blockade-of-hla-antibody-triggered-classical-complement-activation-in-sera-from-subjects-dosed-with-the-anti-c1s-monoclonal-antibody-tnt009-results-from-a-randomized-first-in-human-phase-1-trial
#2
Jakob Mühlbacher, Bernd Jilma, Markus Wahrmann, Johann Bartko, Farsad Eskandary, Christian Schörgenhofer, Michael Schwameis, Graham C Parry, James C Gilbert, Sandip Panicker, Georg A Böhmig
BACKGROUND: Complement may play a key role in antibody-mediated rejection. A promising therapeutic approach may be classical pathway (CP) inhibition at the level of early component C1. METHODS: In this first-in-human, double-blind, randomized placebo-controlled phase 1 trial, we evaluated the safety and complement inhibitory effect of TNT009, a humanized monoclonal anti-C1s antibody. Sixty-four adult healthy volunteers received either single (n = 48; 7 consecutive cohorts, 0...
October 2017: Transplantation
https://www.readbyqxmd.com/read/28926189/environmental-peer-pressure-cd4-t-cell-help-in-tolerance-and-transplantation
#3
REVIEW
Dana Tedesco, Arash Grakoui
The liver participates in a multitude of metabolic functions that are critical for sustaining human life. Despite constant encounters with antigenic-rich intestinal blood, oxidative stress and metabolic intermediates, there is no appreciable immune response. Interestingly, patients undergoing orthotopic liver transplantation benefit from a high rate of graft acceptance in comparison to other solid organ transplant recipients. In fact, co-transplantation of a donor liver in tandem with a rejection-prone graft increases the likelihood of graft acceptance...
September 19, 2017: Liver Transplantation
https://www.readbyqxmd.com/read/28926109/role-of-viruses-in-gastrointestinal-cancer
#4
REVIEW
Habibollah Mirzaei, Hossein Goudarzi, Gita Eslami, Ebrahim Faghihloo
Gastrointestinal cancers are a global public health problem, which represent a vast majority of all cancer-caused deaths in both men and women. On the other hand, viral pathogens have been long implicated as etiological factors in the onset of certain human cancers, including gastrointestinal tumors. In this regard, Human Papilloma Virus (HPV), Epstein - Barr Virus (EBV) and John Cunningham Virus (JCV) have been more strongly suggested to be involved in gastrointestinal carcinogenesis; so that, the association of HPV with oropharyngeal and anal cancers and also the association of EBV with gastric cancer have been etiologically confirmed by epidemiological and experimental investigations...
September 19, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28926019/dalys-dollars-and-dogs-how-best-to-analyse-the-economics-of-controlling-zoonoses
#5
A P M Shaw, J Rushton, F Roth, P R Torgerson
Decision-makers increasingly require comprehensive economic metrics summarising and comparing the benefits and costs of controlling zoonotic diseases. The impact of disease in people is conventionally quantified in non-monetary terms, usually a disability-adjusted life year (DALY), whereas the losses due to disease in animals, particularly livestock, are quantified in monetary terms. The potential for the development of a non-monetary metric for ill health in animals, based on life years lost and disability, is discussed and rejected...
April 2017: Revue Scientifique et Technique
https://www.readbyqxmd.com/read/28925732/interleukin-10-gene-transfer-in-rat-limbal-transplantation
#6
Claude Kaufmann, Lauren A Mortimer, Helen M Brereton, Yazad D Irani, Douglas Ga Parker, Donald S Anson, Lucas M Bachmann, Keryn A Williams
PURPOSE: To evaluate the gene transfer of the interleukin (IL)-10 cytokine as a treatment modality for prolonging limbal allograft survival in a rat model. MATERIALS AND METHODS: Adenoviral (AV) and lentiviral (LV) vectors were produced for ex vivo gene transfer into limbal graft tissue prior to orthotopic transplantation. Experimental groups comprised unmodified isografts, unmodified allografts, allografts transfected with a reporter gene, and allografts transfected with IL-10...
September 19, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28925597/lower-tacrolimus-exposure-and-time-in-therapeutic-range-increase-the-risk-of-de-novo-donor-specific-antibodies-in-the-first-year-of-kidney-transplantation
#7
Scott Davis, Jane Gralla, Patrick Klem, Suhong Tong, Gina Wedermyer, Brian Freed, Alexander Wiseman, James E Cooper
De novo donor-specific antibodies (dnDSA) have been associated with reduced graft survival. Tacrolimus (TAC)-based regimens are the most common immunosuppression used in in clinical practice today, yet an optimal therapeutic dose to prevent dnDSA has not been established. We evaluated mean TAC C0 and TAC time in therapeutic range for the risk of dnDSA in a cohort of 538 patients in the first year of kidney transplant. A mean TAC C0 < 8 ng/ml was associated with dnDSA by 6 months (OR 2.51, 95% CI 1.32-4.79, p=0...
September 19, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28925552/in-situ-bone-tissue-engineering-with-an-endogenous-stem-cell-mobilizer-and-osteoinductive-nanofibrous-polymeric-scaffolds
#8
Jong Seung Lee, Yoonhee Jin, Hyun-Ji Park, Kisuk Yang, Min Suk Lee, Hee Seok Yang, Seung-Woo Cho
Classical bone tissue engineering involves the use of culture-expanded cells and scaffolds to produce tissue constructs for transplantation. Despite promising results, clinical adoption of these constructs has been limited due to various drawbacks, including extensive cell expansion steps, low cell survival rate upon transplantation, and the possibility of immuno-rejection. To bypass the ex vivo cell culture and transplantation process, we exploited the regenerative capacity of the host by mobilizing endogenous stem cells to the site of injury...
September 19, 2017: Biotechnology Journal
https://www.readbyqxmd.com/read/28925086/optimizing-hepatic-venous-outflow-reconstruction-for-hepatic-vein-stenosis-with-indwelling-stent-in-living-donor-liver-retransplantation
#9
Takanobu Shigeta, Seisuke Sakamoto, Kengo Sasaki, Hajime Uchida, Soichi Narumoto, Akinari Fukuda, Mureo Kasahara
The patient was a boy of 7 years and 5 months of age, who underwent LDLT for acute liver failure at 10 months of age. HV stent placement was performed 8 months after LDLT because of intractable HV stenosis. At 7 years of age, his liver function deteriorated due to chronic rejection. The patient therefore underwent living donor liver retransplantation from his father. The HV was transected with the stent in situ. The IVC was resected due to stenosis. The pericardial cavity was opened and detached around the IVC to elongate the IVC...
September 18, 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/28924504/the-evolutionary-history-of-plant-t2-s-type-ribonucleases
#10
Karolis Ramanauskas, Boris Igić
A growing number of T2/S-RNases are being discovered in plant genomes. Members of this protein family have a variety of known functions, but the vast majority are still uncharacterized. We present data and analyses of phylogenetic relationships among T2/S-RNases, and pay special attention to the group that contains the female component of the most widespread system of self-incompatibility in flowering plants. The returned emphasis on the initially identified component of this mechanism yields important conjectures about its evolutionary context...
2017: PeerJ
https://www.readbyqxmd.com/read/28924464/the-relationship-between-mortality-of-lung-transplant-recipients-and-serum-cyclosporine-levels-joint-modeling-of-time-to-event-data-and-longitudinal-data
#11
F S Hosseini-Baharanchi, E Hajizadeh, A R Baghestani, K Najafzadeh
BACKGROUND: Lung transplantation (LTx) is a well-accepted treatment that can prolong survival of patients with advanced lung disease. OBJECTIVE: To evaluate the association between serum cyclosporine level (SCL) pattern and mortality of LTx recipients. METHODS: This retrospective cohort study included 1019 observations on 38 patients who underwent LTx in Masih Daneshvari Hospital from 2000 to 2013. The analysis applied a joint model with shared random effects...
2017: International Journal of Organ Transplantation Medicine
https://www.readbyqxmd.com/read/28924461/do-the-benefits-of-transplant-tourism-amongst-nigerian-patients-outweigh-the-risks-a-single-center-experience
#12
C O Amira, B T Bello
BACKGROUND: Transplant tourism (TT) is the term used to describe travel outside one's country of abode for the sole purpose of obtaining organ transplantation services. OBJECTIVE: This study describes the characteristics and outcomes of kidney transplant tourists who were followed up in our institution. METHODS: A retrospective study was conducted on patients who underwent kidney transplantation outside the country and were followed up in our institution from 2007 to 2015...
2017: International Journal of Organ Transplantation Medicine
https://www.readbyqxmd.com/read/28924321/the-ethics-of-peer-and-editorial-requests-for-self-citation-of-their-work-and-journal
#13
REVIEW
Jaime A Teixeira da Silva
Peer reviewers are expected to be experts in a field of study and should be versed with the pertinent literature related with the manuscript they are reviewing. Editors might not necessarily be experts in a particular field, but they have the responsibility of overseeing the requests made by peers, and assessing whether these are ethically appropriate, or not. Thus, requests by peers to cite unrelated literature, which may or may not be their own literature, could be unethical, especially if the objective is to improve their own citations or to boost the citations of the journal for which they are reviewing...
April 2017: Medical Journal, Armed Forces India
https://www.readbyqxmd.com/read/28924142/the-role-of-social-status-and-testosterone-in-human-conspicuous-consumption
#14
Yin Wu, Christoph Eisenegger, Niro Sivanathan, Molly J Crockett, Luke Clark
Conspicuous consumption refers to the phenomenon where individuals purchase goods for signalling social status, rather than for its inherent functional value. This study (n = 166 male participants) investigated how the outcome of a social competition influenced conspicuous consumption, and its association with competition-induced testosterone reactivity. Winning a competition increased both explicit and implicit preferences for higher-status vs. lower-status products, using both natural stimuli (prestigious cars) and laboratory-tagged stimuli of matched value (university T-shirts)...
September 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28923651/high-resolution-magic-angle-spinning-nuclear-magnetic-resonance-spectroscopy-for-the-metabolic-assessment-of-acute-rejection-after-cardiac-transplantation-in-rats
#15
C W Lee, J S Lee, C W Woo, S Kim
PURPOSE: To evaluate the potential of high-resolution magic angle spinning (HR-MAS) (1)H nuclear magnetic resonance (NMR) spectroscopy for metabolite characterization and the differentiation of acute rejection after heart transplantation in rat models. METHODS: We transplanted syngeneic heart grafts from Lewis rats (n = 4) and allogeneic heart grafts from F344 rats (n = 4) heterotopically into Lewis recipients. On day 7 postoperatively, the transplanted hearts were harvested for ex vivo (1)H NMR spectroscopy and HR-MAS (1)H NMR spectroscopy...
October 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28923633/changes-in-dna-methylation-of-glucocorticoid-induced-tumor-necrosis-factor-receptor-and-its-ligand-in-liver-transplantation
#16
W Wang, G Ji, Y Chen, J Wang, J Sun, G Tang, Z Xie, H Zhao, G Liu, S Tan, G Chen, H Xue
Liver transplantation (LT) is the criterion standard of care in patients with end-stage liver disease and those with tumors of hepatic origin in the setting of liver dysfunction. Chronic immune rejection of the liver transplant can lead to bad prognosis for patients. Glucocorticoid-induced tumor necrosis factor receptor (GITR) play a key role in dominant immunologic self-tolerance maintained by CD25+/CD4+ regulatory T cells. Here, we investigated the DNA methylation variations of GITR and GITR ligand (GITRL) using pyrosequencing by analyzing blood DNA samples of patients after LT...
October 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28923621/extended-spectrum-beta-lactamase-producing-enterobacteriaceae-related-urinary-tract-infection-in-kidney-transplant-recipients-risk-factors-treatment-and-long-term-outcome
#17
S Brakemeier, S I Taxeidi, B Zukunft, D Schmidt, J Gaedeke, M Dürr, S Hansen, K Budde
BACKGROUND: Prevalence of extended-spectrum beta-lactamase-producing Enterobacteriaceae (ESBL-E) has risen in kidney transplant (KT) patients, with no long-term data so far on graft function or survival. METHODS: KT patients with ESBL-E-positive urine culture were retrospectively analyzed regarding initial adequate antimicrobial therapy, recurrent infection, transplant function, and survival compared with an ESBL-E-negative KT control cohort. RESULTS: ESBL-E-positive KT patients (n = 93) were older (55...
October 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28923620/late-conversion-to-belatacept-after-kidney-transplantation-outcome-and-prognostic-factors
#18
M Dürr, N Lachmann, B Zukunft, D Schmidt, K Budde, S Brakemeier
BACKGROUND: Conversion to belatacept at a later point after kidney transplantation (KT) as a rescue therapy has been shown to be beneficiary in an increasing number of patients, but prognostic factors for a favorable outcome have never been investigated. METHODS: The present study analyzed all KT patients after late conversion to belatacept in a single center regarding graft survival and changes in estimated glomerular filtration rate (eGFR), proteinuria, and mean fluorescence intensity (MFI) of donor-specific antibodies (DSA)...
October 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28923618/impact-of-induction-therapy-on-delayed-graft-function-following-kidney-transplantation-in-mated-kidneys
#19
T Butler, N Hayde
BACKGROUND: Delayed graft function (DGF) is defined as the need for dialysis within 1 week of transplantation and occurs in 20%-50% of deceased-donor kidney transplant recipients. Although recovery from DGF often occurs within a few days, many cases may take weeks to months before the transplant function begins. The delay in function increases the complexity of recipient care, makes the diagnosis of acute rejection more difficult, prolongs length of stay, and increases hospital costs...
October 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28923615/effective-and-safe-reduction-of-conventional-immunosuppressants-using-everolimus-in-maintenance-kidney-transplant-recipients
#20
K Nanmoku, A Kurosawa, T Kubo, T Shinzato, T Shimizu, T Kimura, T Yagisawa
BACKGROUND: Adverse events due to conventional immunosuppressive therapy decrease both graft and patient survival. We aimed to establish a new protocol using everolimus (EVR) to safely minimize conventional immunosuppressants in maintenance kidney transplant recipients. METHODS: A total of 86 consecutive kidney transplant recipients with no complications were maintained with triple-drug combination therapy (conventional group). In case of complications, the administration of very low-dose tacrolimus (C0: 5...
October 2017: Transplantation Proceedings
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