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https://www.readbyqxmd.com/read/29166708/-effects-of-astragalus-polysaccharide-on-cardiac-dysfunction-in-rabbits-with-severe-scald-injury
#1
L Zhong, J H Zhan, J H Luo, X Cheng
Objective: To investigate the effects of astragalus polysaccharide (AP) on cardiac dysfunction in rabbits with severe scald injury. Methods: Sixty-four New Zealand white rabbits were divided into pure scald group and AP group according to the random number table, with 32 rabbits in each group. Rabbits in the two groups were all inflicted with 30% total body surface area full-thickness scald on the back. Immediately after injury, rabbits in two groups were intraperitoneally injected with lactated Ringer's solution once for antishock...
November 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/29166668/interleukin-36%C3%AE-and-il-36-receptor-signaling-mediate-impaired-host-immunity-and-lung-injury-in-cytotoxic-pseudomonas-aeruginosa-pulmonary-infection-role-of-prostaglandin-e2
#2
Tetsuji Aoyagi, Michael W Newstead, Xianying Zeng, Yuta Nanjo, Marc Peters-Golden, Mitsuo Kaku, Theodore J Standiford
Pseudomonas aeruginosa is a Gram-negative pathogen that can lead to severe infection associated with lung injury and high mortality. The interleukin (IL)-36 cytokines (IL-36α, IL-36β and IL-36γ) are newly described IL-1 like family cytokines that promote inflammatory response via binding to the IL-36 receptor (IL-36R). Here we investigated the functional role of IL-36 cytokines in the modulating of innate immune response against P. aeruginosa pulmonary infection. The intratracheal administration of flagellated cytotoxic P...
November 22, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/29166648/different-response-to-hypoxia-of-adipose-derived-multipotent-cells-from-obese-subjects-with-and-without-metabolic-syndrome
#3
Wilfredo Oliva-Olivera, Isabel Moreno-Indias, Leticia Coín-Aragüez, Said Lhamyani, Juan Alcaide Torres, Sonia Fernández-Veledo, Joan Vendrell, Antonio Camargo, Rajaa El Bekay, Francisco José Tinahones
BACKGROUND/OBJECTIVES: Multiple studies suggest that hypoxia, together with inflammation, could be one of the phenomena involved in the onset and progression of obesity-related insulin resistance. In addition, dysfunction of adipose tissue in obese subjects with metabolic syndrome is associated with decreased angiogenesis. However, some subjects with a high body mass index do not develop metabolic abnormalities associated with obesity. The aim of the current study was to examine the neovascular properties of visceral adipose tissue-derived multipotent mesenchymal cells subjected to hypoxia (hypox-visASCs) from normal-weight subjects (Nw) and obese patients with metabolic syndrome (MS) and without metabolic syndrome (NonMS)...
2017: PloS One
https://www.readbyqxmd.com/read/29166605/l-type-voltage-gated-ca-2-channels-regulate-synaptic-activity-triggered-recycling-endosome-fusion-in-neuronal-dendrites
#4
Brian G Hiester, Ashley M Bourke, Brooke L Sinnen, Sarah G Cook, Emily S Gibson, Katharine R Smith, Matthew J Kennedy
The repertoire and abundance of proteins displayed on the surface of neuronal dendrites are tuned by regulated fusion of recycling endosomes (REs) with the dendritic plasma membrane. While this process is critical for neuronal function and plasticity, how synaptic activity drives RE fusion remains unexplored. We demonstrate a multistep fusion mechanism that requires Ca(2+) from distinct sources. NMDA receptor Ca(2+) initiates RE fusion with the plasma membrane, while L-type voltage-gated Ca(2+) channels (L-VGCCs) regulate whether fused REs collapse into the membrane or reform without transferring their cargo to the cell surface...
November 21, 2017: Cell Reports
https://www.readbyqxmd.com/read/29166521/case-for-diagnosis-systemic-light-chain-amyloidosis-with-cutaneous-involvement
#5
João Renato Vianna Gontijo, Jackson Machado Pinto, Maysa Carla de Paula
Systemic light chain amiloydosis is a rare disease. Due to its typical cutaneous lesions, dermatologists play an essential role in its diagnosis. Clinical manifestations vary according to the affected organ and are often unspecific. Definitive diagnosis is achieved through biopsy. We report a patient with palpebral amyloidosis, typical bilateral ecchymoses and cardiac involvement, without plasma cell dyscrasia or lymphomas. The patient died shortly after the diagnosis.
September 2017: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/29166413/comprehensive-molecular-profiling-of-718-multiple-myelomas-reveals-significant-differences-in-mutation-frequencies-between-african-and-european-descent-cases
#6
Zarko Manojlovic, Austin Christofferson, Winnie S Liang, Jessica Aldrich, Megan Washington, Shukmei Wong, Daniel Rohrer, Scott Jewell, Rick A Kittles, Mary Derome, Daniel Auclair, David Wesley Craig, Jonathan Keats, John D Carpten
Multiple Myeloma (MM) is a plasma cell malignancy with significantly greater incidence and mortality rates among African Americans (AA) compared to Caucasians (CA). The overall goal of this study is to elucidate differences in molecular alterations in MM as a function of self-reported race and genetic ancestry. Our study utilized somatic whole exome, RNA-sequencing, and correlated clinical data from 718 MM patients from the Multiple Myeloma Research Foundation CoMMpass study Interim Analysis 9. Somatic mutational analyses based upon self-reported race corrected for ancestry revealed significant differences in mutation frequency between groups...
November 2017: PLoS Genetics
https://www.readbyqxmd.com/read/29165759/transient-receptor-potential-melastatin-4-cation-channel-in-pediatric-heart-block
#7
J Tian, X-J An, M-Y Fu
Progressive cardiac conduction disease (PCCD) is a common pediatric heart conduction disorder. It is an autosomal inheritance of rare mutations, which leads to familial cases of PCCD. In these cases, the His-Purkinje system's conductive capacity is progressively deranged, involving either right or left bundle branch block. Also, QRS complexes display widening is an important characteristic that culminates in complete AV block, syncope, and sudden death. Mutations in TRPM4 gene that encodes for transient receptor potential melastatin 4 have recently been reported to cause familial cases of PCCD and heart block...
October 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29165741/emerging-roles-for-von-willebrand-factor-in-cancer-cell-biology
#8
Jamie M O'Sullivan, Roger J S Preston, Tracy Robson, James S O'Donnell
von Willebrand factor (VWF) is a complex multimeric plasma glycoprotein that plays critical roles in normal hemostasis. However, additional novel roles for VWF in modulating cancer cell biology, and in particular tumor metastasis, have recently been reported. Markedly elevated plasma VWF levels were associated with advanced tumor stage and metastatic disease. These observations have raised the question of whether VWF may be involved in regulating tumor progression. Interestingly, novel findings indicate that VWF is expressed by a variety of tumor cells of nonendothelial origin...
November 17, 2017: Seminars in Thrombosis and Hemostasis
https://www.readbyqxmd.com/read/29165355/acute-effects-of-nitrate-rich-beetroot-juice-on-blood-pressure-hemostasis-and-vascular-inflammation-markers-in-healthy-older-adults-a-randomized-placebo-controlled-crossover-study
#9
Kyle Raubenheimer, Danica Hickey, Michael Leveritt, Robert Fassett, Joaquin Ortiz de Zevallos Munoz, Jason D Allen, David Briskey, Tony J Parker, Graham Kerr, Jonathan M Peake, Natalie M Pecheniuk, Oliver Neubauer
Aging is associated with a vasoconstrictive, pro-coagulant, and pro-inflammatory profile of arteries and a decline in the bioavailability of the endothelium-derived molecule nitric oxide. Dietary nitrate elicits vasodilatory, anti-coagulant and anti-inflammatory effects in younger individuals, but little is known about whether these benefits are evident in older adults. We investigated the effects of 140 mL of nitrate-rich (HI-NI; containing 12.9 mmol nitrate) versus nitrate-depleted beetroot juice (LO-NI; containing ≤0...
November 22, 2017: Nutrients
https://www.readbyqxmd.com/read/29165150/search-for-biomarkers-of-asbestos-exposure-and-asbestos-induced-cancers-in-investigations-of-the-immunological-effects-of-asbestos
#10
REVIEW
Hidenori Matsuzaki, Naoko Kumagai-Takei, Suni Lee, Megumi Maeda, Nagisa Sada, Tamayo Hatayama, Shoko Yamamoto, Miho Ikeda, Kei Yoshitome, Yu Min, Yasumitsu Nishimura, Takemi Otsuki
The immunological effects of asbestos exposure on various lymphocytes such as the regulatory T cell (Treg), responder CD4+ T helper cell (Tresp), CD8+ cytotoxic T lymphocytes (CTL), and natural killer (NK) cells were investigated. Results show that asbestos exposure impairs antitumor immunity through enhancement of regulatory T cell function and volume, reduction of CXCR3 chemokine receptor in responder CD4+ T helper cells, and impairment of the killing activities of CD8+ cytotoxic T lymphocytes (CTL) and NK cells...
June 9, 2017: Environmental Health and Preventive Medicine
https://www.readbyqxmd.com/read/29165076/pasylation-as-a-powerful-technology-for-improving-the-pharmacokinetic-properties-of-biopharmaceuticals
#11
Sajjad Ahmadpour, Seyed Jalal Hosseinimehr
One of the major challenges of short plasma half-life biopharmaceuticals is to daily high dose administration that leads to economic problems, patient inconvenience and undesirable side effects. Increasing the hydrodynamic volume beyond the pore size of the glomerular basal membrane is a general approach to increase the size of the small biopharmaceuticals with low half-life in blood circulation. PASylation technology is one of these approaches that are designed based on the genetic fusion of biopharmaceutical with a hydrophilic random coil sequence of tri proline (Pro), alanine (Ala), and serine (Ser) amino acids...
November 20, 2017: Current Drug Delivery
https://www.readbyqxmd.com/read/29165070/bortezomib-in-kidney-transplant-current-use-and-perspectives
#12
Erika B Rangel, Lucio R Requião-Moura, Taina V de Sandes-Freitas, Gessika Marcelo-Gomes
BACKGROUND: Despite major advances in transplant medicine, antibody-mediated rejection (AMR) continues to have severe clinical implications and adversely affect graft survival. Therefore, the search for alternative drugs to treat AMR is widely pursued. The first-in-class proteasome inhibitor bortezomib (BZ) is a selective inhibitor of the 26S proteasome, which was initially approved for the treatment of malignant plasma cell disorders. METHODS: This review encompasses how our understanding of inhibiting proteasome pathway created the basis of BZ research and important milestones accomplished in AMR treatment in the transplant setting...
November 20, 2017: Current Drug Metabolism
https://www.readbyqxmd.com/read/29165056/citrinin-induces-apoptosis-in-human-hct116-colon-cancer-cells-through-endoplasmic-reticulum-stress
#13
Amal Salah, Chayma Bouaziz, Alexandre Prola, Julie Pires Da Silva, Hassen Bacha, Salwa Abid-Essefi, Christophe Lemaire
The mycotoxin citrinin (CTN) is a natural contaminant of various human foods that may produce serious adverse health problems. Several studies demonstrated that citrinin exerts cytotoxic and genotoxic effects in both in vivo and in vitro systems. However, the precise mechanisms of action (MOA), particularly in intestinal cells remain unclear. The aim of the present study was to examine the precise MOA of citrinin in vitro. Data demonstrated that CTN significantly decreased the number of viable human intestinal HCT116 cells and induced apoptotic events including (1) decrease in ΔѰm indicative of mitochondrial membrane permeabilization, (2) activation of caspase 3, (3) elevated production of reactive oxygen species (ROS) and (4) relative persistence of plasma membrane integrity...
2017: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/29164945/cardiovascular-complications-of-multiple-myeloma-in-the-elderly
#14
Pankaj Mathur, Sharmilan Thanendrarajan, Hakan Paydak, Srikanth Vallurupalli, Kedar Jambhekar, Sabha Bhatti, Carolina D Schinke, Faith E Davies, Jawahar L Mehta
Multiple myeloma is a malignant neoplasm characterized by plasma cell proliferation in blood and bone marrow. Approximately two-thirds of the patients with multiple myeloma are >65 years at the time of diagnosis. Patients in this age group often have co-existing cardiovascular diseases. Areas covered: The presence of multiple myeloma adds to the malady by direct deposition of amyloid protein in the heart or via toxicity of chemotherapeutic agents. Cardiac contractile dysfunction, arrhythmias and thromboembolic disorders are the main issues in the management of elderly patients with multiple myeloma...
November 22, 2017: Expert Review of Cardiovascular Therapy
https://www.readbyqxmd.com/read/29164823/immunoglobulin-g-structure-and-functional-implications-of-different-subclass-modifications-in-initiation-and-resolution-of-allergy
#15
REVIEW
Timothy H Scott-Taylor, Stefan-Claudiu Axinia, Sumeya Amin, Ruth Pettengell
IgE and not IgG is usually associated with allergy. IgE lodged on mast cells in skin or gut and basophils in the blood allows for the prolonged duration of allergy through the persistent expression of high affinity IgE receptors. However, many allergic reactions are not dependent on IgE and are generated in the absence of allergen specific and even total IgE. Instead, IgG plasma cells are involved in induction of, and for much of the pathogenesis of, allergic diseases. The pattern of IgG producing plasma cells in atopic children and the tendency for direct or further class switching to IgE are the principle factors responsible for long-lasting sensitization of mast cells in allergic children...
November 21, 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/29164634/testing-the-limits-of-model-membrane-simulations-bilayer-composition-and-pressure-scaling
#16
Nikoleta Ivanova, Anela Ivanova
Studying transfer of bioactive compounds across cell membranes by simulations attracts growing attention. To perform such calculations accurately, it is necessary to verify the validity of computational protocols established for description of unperturbed lipid bilayers also with translocating substances present. The current work reports the results from 1 μs long atomistic molecular dynamics simulations of two types of model plasma membranes-one built of a single phospholipid (DPPC) and one constructed of four types of phospholipids-in the presence of a drug-peptide complex experimentally known to cross cell membranes...
November 21, 2017: Journal of Computational Chemistry
https://www.readbyqxmd.com/read/29164473/clinicopathological-and-immunohistochemical-study-of-head-and-neck-langerhans-cell-histiocytosis-from-latin-america
#17
Natália Rocha Bedran, Román Carlos, Bruno Augusto Benevenuto de Andrade, Ana Paula Silva Bueno, Mário José Romañach, Cristiane Bedran Milito
Langerhans cell histiocytosis (LCH) is an inflammatory myeloid neoplastic proliferation with variable clinical behavior caused by the accumulation of CD1a(+)/CD207(+) histiocytes, associated with a variable number of eosinophils, lymphocytes, plasma cells and multinucleated giant cells, most commonly observed in male children. LCH is uncommon in the head and neck region, occurring as ulcerated and reddened plaques or nodules that cause destruction of adjacent soft tissues and bone. The exact etiology of LCH is still unknown and controversial, with possible etiologic role of viruses, including Epstein-Barr virus (EBV)...
November 21, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/29164410/increased-batf-expression-is-associated-with-the-severity-of-liver-damage-in-patients-with-chronic-hepatitis-b
#18
Li-Yuan Wang, Yu-Chen Fan, Jing Zhao, Xiang-Fen Ji, Kai Wang
T helper (Th) 17 cells have a critical role in the pathogenesis of chronic hepatitis B virus (HBV) infection, and basic leucine zipper transcription factor, ATF-like (BATF) is a newly identified transcriptional factor regulating the differentiation of Th17 cells. However, its precise role in patients with chronic hepatitis B remains unclear. Sixty chronic hepatitis B (CHB) patients, twenty-two acute-on-chronic hepatitis B liver failure (ACHBLF) patients and seventeen healthy controls were included in our study...
November 21, 2017: Clinical and Experimental Medicine
https://www.readbyqxmd.com/read/29164368/3d-reconstruction-of-endoplasmic-reticulum-in-a-hydrocarbon-secreting-green-alga-botryococcus-braunii-race-b
#19
Reiko Suzuki, Ichiro Nishii, Shigeru Okada, Tetsuko Noguchi
Based on 3D sections through cells of Botryococcus braunii, the structure of three domains of endoplasmic reticulum, and their spatial and functional relationships to other organelles are clarified. Oil production by photosynthetic microalgae has attracted attention since these oils can be converted into renewable, carbon-neutral fuels. The green alga B. braunii accumulates large amounts of hydrocarbons, 30-50% of cell dry weight, in extracellular spaces rather than its cytoplasm. To advance the knowledge of hydrocarbon biosynthesis and transport pathways in this alga, we utilized transmission EM combined with rapid freezing and image reconstruction...
November 22, 2017: Planta
https://www.readbyqxmd.com/read/29164105/platelet-rich-plasma-derived-growth-factors-contribute-to-stem-cell-differentiation-in-musculoskeletal-regeneration
#20
REVIEW
Yun Qian, Qixin Han, Wei Chen, Jialin Song, Xiaotian Zhao, Yuanming Ouyang, Weien Yuan, Cunyi Fan
Stem cell treatment and platelet-rich plasma (PRP) therapy are two significant issues in regenerative medicine. Stem cells such as bone marrow mesenchymal stem cells, adipose-derived stem cells and periodontal ligament stem cells can be successfully applied in the field of tissue regeneration. PRP, a natural product isolated from whole blood, can secrete multiple growth factors (GFs) for regulating physiological activities. These GFs can stimulate proliferation and differentiation of different stem cells in injury models...
2017: Frontiers in Chemistry
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