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https://www.readbyqxmd.com/read/29779238/the-role-of-transbronchial-cryobiopsy-in-lung-transplantation
#1
M Angeles Montero, Javier de Gracia, Mario Culebras, Jacqueline Mugnier, Antonio Álvarez, Cristina Berastegui, Cristian Ortiz-Villalón
INTRODUCTION: Lung transplant monitoring is usually assessed by forceps transbronchial biopsies. These types of biopsies show limited reliability and high degree of variability due to insufficient material and compression artefact, which lead to misinterpretation and eventually mistreatment of the transplanted patients. The following study was undertaken to assess the diagnostic yield, histological quality and safety of cryobiopsy in comparison with conventional forceps biopsy for sampling lung tissue in transplant recipients...
May 19, 2018: Histopathology
https://www.readbyqxmd.com/read/29779041/the-potential-importance-of-myeloid-derived-suppressor-cells-mdscs-in-the-pathogenesis-of-alzheimer-s-disease
#2
REVIEW
Antero Salminen, Kai Kaarniranta, Anu Kauppinen
The exact cause of Alzheimer's disease (AD) is still unknown, but the deposition of amyloid-β (Aβ) plaques and chronic inflammation indicates that immune disturbances are involved in AD pathogenesis. Recent genetic studies have revealed that many candidate genes are expressed in both microglia and myeloid cells which infiltrate into the AD brains. Invading myeloid cells controls the functions of resident microglia in pathological conditions, such as AD pathology. AD is a neurologic disease with inflammatory component where the immune system is not able to eliminate the perpetrator, while, concurrently, it should prevent neuronal injuries induced by inflammation...
May 19, 2018: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/29778821/evaluating-mastectomy-skin-flap-necrosis-in-the-extended-breast-reconstruction-risk-assessment-score-for-one-year-prediction-of-prosthetic-reconstruction-outcomes
#3
Nora Hansen, Sasa Espino, Jordan T Blough, Michael M Vu, Neil A Fine, John Ys Kim
BACKGROUND: Rates of mastectomy for breast cancer treatment and immediate reconstruction continue to rise. With increasing scrutiny on outcomes and patient satisfaction, there is an impetus for providers to be more deliberate in deciding appropriate patient selection for breast reconstruction. The Breast Reconstruction Risk Assessment (BRA) Score was developed for prediction of complications after primary prosthetic breast reconstruction, focusing on calculating risk estimations for a variety of complications based on individual patient demographics and perioperative characteristics...
May 17, 2018: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/29777850/a-novel-cardiovascular-prosthesis-made-from-woven-ultra-high-molecular-weight-polyethylene-fibers-proof-of-concept-in-a-sheep-model
#4
Amir Basir, Mylène Loncq de Jong, Aryan Vink, Gerard Pasterkamp, Paul Gründeman, Frans Moll, Joost van Herwaarden
BACKGROUND: A patch, made of woven ultra-high molecular weight polyethylene (UHMWPE) fibers is thin, strong, and flexible, and may be attractive for use in cardiovascular prostheses. This study assessed the hemocompatibility of this patch in a sheep model. METHODS: The UHMWPE patches were sutured in the right carotid artery and jugular vein in 12 adult sheep, and in the same animal, expanded polytetrafluoroethylene (ePTFE) patches were sutured as control patches in the left carotid artery and jugular vein...
May 16, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29777200/a-map-of-the-pgc-1%C3%AE-and-nt-pgc-1%C3%AE-regulated-transcriptional-network-in-brown-adipose-tissue
#5
Ji Suk Chang, Sujoy Ghosh, Susan Newman, J Michael Salbaum
Transcriptional coactivator PGC-1α and its splice variant NT-PGC-1α play crucial roles in regulating cold-induced thermogenesis in brown adipose tissue (BAT). PGC-1α and NT-PGC-1α are highly induced by cold in BAT and subsequently bind to and coactivate many transcription factors to regulate expression of genes involved in mitochondrial biogenesis, fatty acid oxidation, respiration and thermogenesis. To identify the complete repertoire of PGC-1α and NT-PGC-1α target genes in BAT, we analyzed genome-wide DNA-binding and gene expression profiles...
May 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29776612/immunohistochemical-investigation-of-the-cross-reactivity-of-selected-cell-markers-in-formalin-fixed-paraffin-embedded-lymphoid-tissues-of-franciscana-pontoporia-blainvillei
#6
J Díaz-Delgado, R Ressio, K R Groch, J L Catão-Dias
A considerable amount of knowledge on natural and anthropogenic pathologic conditions affecting different cetacean species has been gained over the last decades. Nonetheless, the immunopathological bases for most of these processes have been poorly documented or remain unknown. Comparative immunopathological investigations in these species are precluded by the limited number of specific antibodies, most of which are not commercially available, and the reduced spectrum of validated and/or cross-reactive ones...
June 2018: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/29774332/tuning-the-molecular-weight-of-polymeric-amphiphiles-as-a-tool-to-access-micelles-with-a-wide-range-of-enzymatic-degradation-rates
#7
Gadi Slor, Nitsan Papo, Uri Hananel, Roey J Amir
Enyzme-responsive polymeric assemblies hold great potential for biomedical applications due to the over-expression of disease-associated enzymes, which can be utilized to activate such systems only in afflicted tissues. Herein we demonstrate that the overall molecular weight of polymeric amphiphiles, which have the same hydrophilic/hydrophobic ratio, can be tuned to create polymeric micelles with an extreme range of degradation rates. This approach expands the available set of molecular parameters that can be adjusted to tune the degradation rate of polymeric assemblies, paving new possibilities for rational design of polymeric systems with controlled degradation rates...
May 18, 2018: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/29774069/a-large-switchable-optical-clearing-skull-window-for-cerebrovascular-imaging
#8
Chao Zhang, Wei Feng, Yanjie Zhao, Tingting Yu, Pengcheng Li, Tonghui Xu, Qingming Luo, Dan Zhu
Rationale: Intravital optical imaging is a significant method for investigating cerebrovascular structure and function. However, its imaging contrast and depth are limited by the turbid skull. Tissue optical clearing has a great potential for solving this problem. Our goal was to develop a transparent skull window, without performing a craniotomy, for use in assessing cerebrovascular structure and function. Methods: Skull optical clearing agents were topically applied to the skulls of mice to create a transparent window within 15 min...
2018: Theranostics
https://www.readbyqxmd.com/read/29774030/changes-in-the-tcr%C3%AE-repertoire-and-tumor-immune-signature-from-a-cutaneous-melanoma-patient-immunized-with-the-csf-470-vaccine-a-case-report
#9
Mariana Aris, Alicia Inés Bravo, María Betina Pampena, Paula Alejandra Blanco, Ibel Carri, Daniel Koile, Patricio Yankilevich, Estrella Mariel Levy, María Marcela Barrio, José Mordoh
The allogeneic therapeutic vaccine CSF-470 has demonstrated a significant benefit over medium-dose IFNα2b in the distant metastasis-free survival for stages IIB-IIC-III cutaneous melanoma patients in a randomized phase II/III clinical trial (CASVAC-0401, NCT01729663). At the end of the 2-year CSF-470 immunization protocol, patient #006 developed several lung and one subcutaneous melanoma metastases; this later was excised. In this report, we analyzed the changes throughout vaccination of immune populations in blood and in the tumor tissue, with special focus on the T-cell repertoire...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29773873/therapeutic-nanoparticles-penetrate-leaves-and-deliver-nutrients-to-agricultural-crops
#10
Avishai Karny, Assaf Zinger, Ashima Kajal, Janna Shainsky-Roitman, Avi Schroeder
As the world population grows, there is a need for efficient agricultural technologies to provide global food requirements and reduce environmental toll. In medicine, nanoscale drug delivery systems grant improved therapeutic precision by overcoming biological barriers and enhancing drug targeting to diseased tissues. Here, we loaded nanoscale drug-delivery systems with agricultural nutrients, and applied them to the leaves of tomato plants. We show that the nanoparticles - liposomes composed of plant-derived lipids, penetrate the leaf and translocate in a bidirectional manner, distributing to other leaves and to the roots...
May 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29773646/a-blood-capillary-plexus-derived-population-of-progenitor-cells-contributes-to-genesis-of-the-dermal-lymphatic-vasculature-during-embryonic-development
#11
Cathy Pichol-Thievend, Kelly L Betterman, Xiaolei Liu, Wanshu Ma, Renae Skoczylas, Emmanuelle Lesieur, Frank L Bos, Dorte Schulte, Stefan Schulte-Merker, Benjamin M Hogan, Guillermo Oliver, Natasha L Harvey, Mathias Francois
Despite the essential role of the lymphatic vasculature in tissue homeostasis and disease, knowledge of the organ-specific origins of lymphatic endothelial progenitor cells remains limited. The assumption that most murine embryonic lymphatic endothelial cells (LECs) are venous derived has recently been challenged. Here, we show that the embryonic dermal blood capillary plexus constitutes an additional, local source of LECs that contributes to the formation of the dermal lymphatic vascular network. We describe a novel mechanism whereby rare PROX1-positive endothelial cells exit the capillary plexus in a Ccbe1 -dependent manner to establish discrete LEC clusters...
May 17, 2018: Development
https://www.readbyqxmd.com/read/29770800/current-and-future-circulating-biomarkers-for-cardiac-amyloidosis
#12
REVIEW
Marco Luciani, Luca Troncone, Federica Del Monte
Cardiac amyloidosis (CA) comprises a heterogeneous group of medical conditions affecting the myocardium. It presents with proteinaceous infiltration with variable degrees of severity, prevalence and evolution. Despite this heterogeneity, erroneous protein folding is the common pathophysiologic process, yielding the formation of a single misfolded protein (monomer) that progressively evolves and ultimately forms amyloid fibers. Additionally, by seeding out from the organs of origin, intermediates called oligomers metastasize and restart the process...
May 17, 2018: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/29770526/current-status-of-3-d-organoids-as-pre-clinical-models
#13
REVIEW
Garima Kaushik, Moorthy P Ponnusamy, Surinder K Batra
Three-dimensional (3D) cultures use the property of some cells to self-organize in matrices and generate structures that can be programmed to represent an organ or a pathology. Organoid cultures are the 3D cultivation of source tissue (ranging from cells to tissue fragments) in a support matrix and specialized media that nearly resembles the physiological environment. Depending on the source tissue, growth factors, and inhibitors provided, organoids can be programmed to recapitulate the biology of a system and progression of pathology...
May 17, 2018: Stem Cells
https://www.readbyqxmd.com/read/29769278/a-concise-review-of-the-epidemiology-and-diagnostics-of-rickettsioses-rickettsia-and-orientia-spp
#14
Mohammad Yazid Abdad, Rita Abou Abdallah, Pierre-Edouard Fournier, John Stenos, Shawn Vasoo
Rickettsioses are globally distributed and caused by the family Rickettsiaceae , which comprise a diverse and expanding list. These include two genera: Rickettsia and Orientia Serology has been traditionally the main-stay of diagnosis, although this has been limited by cross-reactions among closely related members and diminished sensitivity/utility in the acute phase of illness. Other techniques such as nucleic acid amplification tests using blood specimens or tissue swabs/biopsies, sequencing and mass-spectrometry have emerged in recent years for both pathogen and vector identification...
May 16, 2018: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/29768929/current-concepts-in-revision-hip-arthroscopy
#15
Renato Locks, Ioanna Bolia, Hajime Utsunomiya, Karen Briggs, Marc J Philippon
Hip arthroscopy is an evolving procedure and its indications have expanded. The number of patients undergoing this procedure has increased significantly as well as the number of surgeons being trained. This has resulted in a notable increase in post-operative complication rates creating the need to develop advanced hip arthroscopic techniques. Revision hip arthroscopy is often complex and many factors should be considered to achieve a satisfactory clinical outcome. Careful pre-operative planning and agreement of expectations between the physician and patient regarding the procedure are important...
May 1, 2018: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29768404/tissue-specific-activities-of-the-fat1-cadherin-cooperate-to-control-neuromuscular-morphogenesis
#16
Françoise Helmbacher
Muscle morphogenesis is tightly coupled with that of motor neurons (MNs). Both MNs and muscle progenitors simultaneously explore the surrounding tissues while exchanging reciprocal signals to tune their behaviors. We previously identified the Fat1 cadherin as a regulator of muscle morphogenesis and showed that it is required in the myogenic lineage to control the polarity of progenitor migration. To expand our knowledge on how Fat1 exerts its tissue-morphogenesis regulator activity, we dissected its functions by tissue-specific genetic ablation...
May 16, 2018: PLoS Biology
https://www.readbyqxmd.com/read/29768105/identification-of-a-recurrent-lmo7-braf-fusion-in-papillary-thyroid-carcinoma
#17
Huiling He, Wei Li, Pearlly Yan, Ralf Bundschuh, Jackson A Killian, Jadwiga Labanowska, Pamela Brock, Rulong Shen, Nyla A Heerema, Albert de la Chapelle
BACKGROUND: The BRAFV600E mutation is the most common driver in papillary thyroid carcinoma (PTC) tumors. In recent years, gene fusions have also been recognized as important drivers of cancer in PTC. Previous studies have suggested that thyroid tumors with fusion genes frequently display an aggressive course. These observations prompted further exploration of gene fusions in PTC tumors. The aim was to search for previously unrecognized gene fusions using thyroid tissue samples from PTC patients...
May 16, 2018: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/29768045/mfe-hi-adipose-tissue-macrophages-compensate-for-tissue-iron-pertubations-in-mice
#18
Merla J Hubler, Keith M Erikson, Arion J Kennedy, Alyssa H Hasty
Resident adipose tissue macrophages (ATMs) play multiple roles to maintain tissue homeostasis, such as removing excess FFAs and regulation of extracellular matrix. The phagocytic nature and oxidative resiliency of macrophages not only allows them to function as innate immune cells but also to respond to specific tissue needs, such as iron homeostasis. MFehi ATMs are a subtype of resident ATMs that we recently identified to have twice the intracellular iron content as other ATMs and elevated expression of iron handling genes...
May 16, 2018: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/29766930/measurement-of-the-permeability-perfusion-and-histogram-characteristics-in-relapsing-remitting-multiple-sclerosis-using-dynamic-contrast-enhanced-mri-with-extended-tofts-linear-model
#19
Ping Yin, Hua Xiong, Yi Liu, Shambhu K Sah, Chun Zeng, Jingjie Wang, Yongmei Li, Nan Hong
Objective: To investigate the application value of using dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) with extended Tofts linear model for relapsing-remitting multiple sclerosis (RRMS) and its correlation with expanded disability status scale (EDSS) scores and disease duration. Materials and Methods: Thirty patients with multiple sclerosis (MS) underwent conventional magnetic resonance imaging (MRI) and DCE-MRI with a 3.0 Tesla MR scanner. An extended Tofts linear model was used to quantitatively measure MR imaging biomarkers...
May 2018: Neurology India
https://www.readbyqxmd.com/read/29766031/a-rationally-engineered-capsid-variant-of-aav9-for-systemic-cns-directed-and-peripheral-tissue-detargeted-gene-delivery-in-neonates
#20
Dan Wang, Shaoyong Li, Dominic J Gessler, Jun Xie, Li Zhong, Jia Li, Karen Tran, Kim Van Vliet, Lingzhi Ren, Qin Su, Ran He, Jason E Goetzmann, Terence R Flotte, Mavis Agbandje-McKenna, Guangping Gao
Adeno-associated virus (AAV) has provided the gene therapy field with the most powerful in vivo gene delivery vector to realize safe, efficacious, and sustainable therapeutic gene expression. Because many clinically relevant properties of AAV-based vectors are governed by the capsid, much research effort has been devoted to the development of AAV capsids for desired features. Here, we combine AAV capsid discovery from nature and rational engineering to report an AAV9 capsid variant, designated as AAV9.HR, which retains AAV9's capability to traverse the blood-brain barrier and transduce neurons...
June 15, 2018: Molecular Therapy. Methods & Clinical Development
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