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https://www.readbyqxmd.com/read/28811611/the-antibacterial-and-antifungal-activity-of-six-essential-oils-and-their-cyto-genotoxicity-to-human-hel-12469-cells
#1
Andrea Puškárová, Mária Bučková, Lucia Kraková, Domenico Pangallo, Katarína Kozics
Six essential oils (from oregano, thyme, clove, lavender, clary sage, and arborvitae) exhibited different antibacterial and antifungal properties. Antimicrobial activity was shown against pathogenic (Escherichia coli, Salmonella typhimurium, Yersinia enterocolitica, Staphylococcus aureus, Listeria monocytogenes, and Enterococcus faecalis) and environmental bacteria (Bacillus cereus, Arthrobacter protophormiae, Pseudomonas fragi) and fungi (Chaetomium globosum, Penicillium chrysogenum, Cladosporium cladosporoides, Alternaria alternata, and Aspergillus fumigatus)...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28811255/cortical-layers-cyto-myelo-receptor-and-synaptic-architecture-in-human-cortical-areas
#2
REVIEW
Nicola Palomero-Gallagher, Karl Zilles
Cortical layers have classically been identified by their distinctive and prevailing cell types and sizes, as well as the packing densities of cell bodies or myelinated fibers. The densities of multiple receptors for classical neurotransmitters also vary across the depth of the cortical ribbon, and thus determine the neurochemical properties of cyto- and myeloarchitectonic layers. However, a systematic comparison of the correlations between these histologically definable layers and the laminar distribution of transmitter receptors is currently lacking...
August 12, 2017: NeuroImage
https://www.readbyqxmd.com/read/28808757/ct-guided-percutaneous-trans-scapular-lung-biopsy-in-the-diagnosis-of-peripheral-pulmonary-lesion-nodules-of-the-superior-lobes-using-large-needles
#3
Alberto Rebonato, Daniele Maiettini, Marco Andolfi, Matthias J Fischer, Jacopo Vannucci, Giulio Metro, Antonio Basile, Michele Rossi, Michele Duranti
PURPOSE: CT-guided percutaneous transthoracic lung needle biopsy (PLB) is an effective procedure for obtaining cyto-histological diagnoses of peripheral lesions. However, upper postero-lateral lung nodules (UPLN) may be difficult to reach using a standard intercostal either anterior or lateral approach or when the nodule is just behind a rib or scapula. We evaluated the feasibility and effectiveness of trans-scapular approach (tPLB) in these patients using large-core needles. METHODS: We retrospectively collected the data of 11 consecutive patients (mean age 74...
August 14, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28806702/hmgb1-redox-during-sepsis
#4
Wasan Abdulmahdi, Devika Patel, May M Rabadi, Tala Azar, Edson Jules, Mark Lipphardt, Rameen Hashemiyoon, Brian B Ratliff
During sepsis, the alarmin HMGB1 is released from tissues and promotes systemic inflammation that results in multi-organ damage, with the kidney particularly susceptible to injury. The severity of inflammation and pro-damage signaling mediated by HMGB1 appears to be dependent on the alarmin's redox state. Therefore, we examined HMGB1 redox in kidney cells during sepsis. Using intravital microscopy, CellROX labeling of kidneys in live mice indicated increased ROS generation in the kidney perivascular endothelium and tubules during lipopolysaccharide (LPS)-induced sepsis...
August 4, 2017: Redox Biology
https://www.readbyqxmd.com/read/28803810/autophagy-plays-a-positive-role-in-zinc-induced-apoptosis-in-intestinal-porcine-epithelial-cells
#5
Xin Zhou, Yansen Li, ChunMei Li
A high‑zinc (Zn) diet has been found to promote growth performance in pigs, but causes cell apoptosis in the intestinal epithelium. To investigate the mechanism underlying the high dietary Zn-induced apoptosis in porcine small intestinal epithelium, IPEC-J2 cells (intestinal porcine epithelial cells) were used to determine the effect of Zn on cell inhibitory, apoptosis, and mitochondrial membrane potential and autophagy in vitro. Results showed that Zn inhibited IPEC-J2 cell proliferation and induced apoptosis and autophagy...
August 10, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/28797085/comparison-of-cytokine-profiles-in-the-aqueous-humor-of-eyes-with-pseudoexfoliation-syndrome-and-glaucoma
#6
Justus G Garweg, Souska Zandi, Isabel B Pfister, Magdalena Skowronska, Christin Gerhardt
PURPOSE: To compare the cyto- and chemokine profiles in the aqueous humor of PEXS eyes in the absence or presence of secondary glaucoma with or without luxation of the intraocular lens (IOL). METHODS: Samples of aqueous humor were collected intraoperatively from 20 healthy controls and from 73 eyes with PEX-syndrome, which was manifested in the absence of any other local or systemic desease. The latter group was sub-devided into eyes with an early form of PEX-syndrome in the absence of complications (PEX, n = 33), those with a late form of PEX-syndrome and glaucoma (PEXG, n = 30), and those with a late form of PEX-syndrome with luxation of the IOL that required surgery (PEXL, n = 10)...
2017: PloS One
https://www.readbyqxmd.com/read/28793778/peroxiredoxin-2-a-novel-regulator-of-iron-homeostasis-in-ineffective-erythropoiesis
#7
Alessandro Matte, Luigia De Falco, Enrica Federti, Anna Cozzi, Achille Iolascon, Sonia Levi, Narla Mohandas, Alberto Zamo, Mariasole Bruno, Christophe Leboeuf, Anne Janin, Angela Siciliano, Thomas Ganz, Giorgia Federico, Francesca Carlomagno, Sebastian Mueller, Ines Silva, Carmine Carbone, Davide Melisi, D W Kim, Soo Young Choi, Lucia DE Franceschi
AIMS: Iron-overload (IO) is a life-threatening complication of chronic hemolytic disorders such as β-thalassemia. IO results in severe cellular oxidative damage, leading to organ failure. Peroxiredoxin-2 (Prx2), a typical 2-cysteine-(Cys)-peroxiredoxin, is an important component of cyto-protective system, but its response to IO is still to be fully defined. RESULTS: We studied the effects of IO on Prx2-knockout mice (Prx2-/-). The absence of Prx2 enhanced toxicity due to IO on erythropoiesis...
August 10, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28774621/zebrafish-embryo-toxicity-of-15-chlorinated-brominated-and-iodinated-disinfection-by-products
#8
David Hanigan, Lisa Truong, Michael Simonich, Robert Tanguay, Paul Westerhoff
Disinfection to protect human health occurs at drinking water and wastewater facilities through application of non-selective oxidants including chlorine. Oxidants also transform organic material and form disinfection by-products (DBPs), many of which are halogenated and cyto- and genotoxic. Only a handful of assays have been used to compare DBP toxicity, and researchers are unsure which DBP(s) drive the increased cancer risk associated with drinking chlorinated water. The most extensive data set employs an in vitro model cell, Chinese hamster ovary cells...
August 2017: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/28771629/altitudinal-gradients-biogeographic-history-and-microhabitat-adaptation-affect-fine-scale-spatial-genetic-structure-in-african-and-neotropical-populations-of-an-ancient-tropical-tree-species
#9
Paloma Torroba-Balmori, Katharina B Budde, Katrin Heer, Santiago C González-Martínez, Sanna Olsson, Caroline Scotti-Saintagne, Maxime Casalis, Bonaventure Sonké, Christopher W Dick, Myriam Heuertz
The analysis of fine-scale spatial genetic structure (FSGS) within populations can provide insights into eco-evolutionary processes. Restricted dispersal and locally occurring genetic drift are the primary causes for FSGS at equilibrium, as described in the isolation by distance (IBD) model. Beyond IBD expectations, spatial, environmental or historical factors can affect FSGS. We examined FSGS in seven African and Neotropical populations of the late-successional rain forest tree Symphonia globulifera L. f. (Clusiaceae) to discriminate the influence of drift-dispersal vs...
2017: PloS One
https://www.readbyqxmd.com/read/28767174/inactivation-of-beclin-1-dependent-autophagy-promotes-ursolic-acid-induced-apoptosis-in-hypertrophic-scar-fibroblasts
#10
Chuan Cao, Wenping Wang, Lele Lu, Liang Wang, XiaoSong Chen, Rui Guo, Shirong Li, Junzi Jiang
A hypertrophic scar (HS) is caused by abnormal proliferation of dermal fibroblasts. Thus, promoting hypertrophic scar fibroblast (HSFB) apoptosis is an effective strategy for HS therapy. Ursolic acid (UA) has been widely used as an inducer of apoptosis in diverse cancers. However, whether UA plays an inhibitory role in HS formation is still unknown. In our study, UA was used to treat HSFBs and the cell viability, apoptosis, and collagen synthesis were determined by a Cell Counting Kit 8 (CCK8) assay, flow cytometry, and an H(3) -proline incorporation assay, respectively...
August 2, 2017: Experimental Dermatology
https://www.readbyqxmd.com/read/28759766/metal-toxicity-assessment-by-sentinel-species-of-mangroves-in-situ-case-study-integrating-chemical-and-biomarkers-analyses
#11
Luis Felipe de Almeida Duarte, Caroline Araújo de Souza, Camilo Dias Seabra Pereira, Marcelo Antonio Amaro Pinheiro
Globally, there is a lack of knowledge about tropical ecotoxicology dealing with the potential impact of metal contamination in mangrove ecosystem. This habitat is considered a nursery for several animal species, among them the "uçá"-crab (Ucides cordatus), known as a key species due to its biological and economical importance. This study evaluated the association involving metal contamination (Cd, Cu, Pb, Cr, Mn and Hg) in water, sediment, red-mangrove vegetation (Rhizophora mangle) and tissues of uçá crab, together with its geno-cytotoxic responses, based on micronucleated hemocytes frequency and the retention time of neutral red in lysosomes...
July 28, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28758149/adiponectin-and-its-hydrolase-activated-receptors
#12
Ankit X Sharma, William L Holland
The relevance of adiponectin to insulin sensitivity has been elucidated over the last two decades. As a promoter of ceramide degradation, it works through its cognate receptors, AdipoR1 and AdipoR2, to alter bioactive sphingolipid species. Adiponectin diminishes the accumulation of ceramide, a lipid metabolite which can play a causal role in obesity-induced insulin resistance. Concurrently, adiponectin stimulates the production of sphingosine-1-phosphate (S1P), a cyto-protective molecule that accentuates adiponectin's positive metabolic effects...
June 2017: Journal of Nature and Science
https://www.readbyqxmd.com/read/28757170/the-deleterious-interplay-between-tumor-epithelia-and-stroma-in-cholangiocarcinoma
#13
REVIEW
Massimiliano Cadamuro, Tommaso Stecca, Simone Brivio, Valeria Mariotti, Romina Fiorotto, Carlo Spirli, Mario Strazzabosco, Luca Fabris
Prognosis of cholangiocarcinoma, a devastating liver epithelial malignancy characterized by early invasiveness, remains very dismal, though its incidence has been steadily increasing. Evidence is mounting that in cholangiocarcinoma, tumor epithelial cells establish an intricate web of mutual interactions with multiple stromal components, largely determining the pervasive behavior of the tumor. The main cellular components of the tumor microenvironment (i.e. myofibroblasts, macrophages, lymphatic endothelial cells), which has been recently termed as 'tumor reactive stroma', are recruited and activated by neoplastic cells, and in turn, deleteriously mold tumor behavior by releasing a huge variety of paracrine signals, including cyto/chemokines, growth factors, morphogens and proteinases...
July 27, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28754539/in-vitro-genotoxicity-and-cytotoxicity-of-polydopamine-coated-magnetic-nanostructures
#14
Anna Woźniak, Magdalena Walawender, Dominika Tempka, Emerson Coy, Karol Załęski, Bartosz F Grześkowiak, Radosław Mrówczyński
Synthesis of magnetic nanoparticles and magnetic nanoclusters was performed by the co-precipitation method or solvothermal synthesis, respectively, followed by oxidative polymerization of dopamine, resulting in a polydopamine (PDA) shell. The nanomaterials obtained were described using TEM, FTIR and magnetic measurements. For the first time, cyto- and genotoxicity studies of polydopamine-coated nanostructures were performed on cancer and normal cell lines, providing in-depth insight into the toxicity of such materials...
July 25, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/28748035/cytokine-response-patterns-to-complex-biofilms-by-mononuclear-cells-discriminate-patient-disease-status-and-biofilm-dysbiosis
#15
I M Velsko, Y Cruz-Almeida, H Huang, S M Wallet, L M Shaddox
Localized aggressive periodontitis (LAP) is a rare form of periodontal disease with site-specific rapid tissue destruction. A lipopolysaccharide (LPS) hyper-inflammatory response was shown in LAP using peripheral whole blood, although responses to other bacterial surface components or complex oral biofilms have not been evaluated. Peripheral blood mononuclear cells (PBMCs) from 14 LAP patients, 15 healthy siblings (HS), and 13 unrelated healthy controls (HC) were stimulated with: LPS, lipoteichoic acid, or peptidoglycan; intact or sonically dispersed in vitro-grown biofilms from a LAP disease site, a LAP healthy site, or a healthy control site...
2017: Journal of Oral Microbiology
https://www.readbyqxmd.com/read/28747010/traditional-knowledge-to-clinical-trials-a-review-on-therapeutic-actions-of-emblica-officinalis
#16
REVIEW
Suraj Singh Yadav, Manish Kumar Singh, Pawan Kumar Singh, Vipin Kumar
Plants are the integral part of the traditional indigenous healthcare system and are becoming concrete source of new drug discovery, evident by the increasing numbers of modern drugs derived from the phytochemicals. Emblica officinalis Gaertn. or Phyllanthus emblica Linn (family Phyllanthaceae) has been explained extensively and well documented for its therapeutic efficacies in indigenous system of medicine, in India. Every part of this plant possesses high medicinal value but fruits are the most valuable part in folklore and therapeutic uses...
September 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28743346/-research-progress-of-iqgap1-in-the-pathogenesis-of-ards-induced-by-sepsis
#17
Wang Zhang, Qiang Fang
Sepsis is one of the main cause of patients' death. Lung is the most vulnerable target organ during sepsis, and sepsis patients are often complicated with acute respiratory distress syndrome (ARDS), of which the main mechanism is vascular leakage caused by cytoskeleton rearrangement and cell-to-cell connection changes. IQ-guanosine triphosphatease-activating protein 1 (IQGAP1) has become the key component of cytoskeleton dynamics regulation in recent years. At present, the relationship between IQGAP1 and ARDS induced by sepsis is not yet clear...
July 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28742109/young-sprague-dawley-rats-infected-by-plasmodium-berghei-a-relevant-experimental-model-to-study-cerebral-malaria
#18
Sokhna Keita Alassane, Marie-Laure Nicolau-Travers, Sandie Menard, Olivier Andreoletti, Jean-Pierre Cambus, Noémie Gaudre, Myriam Wlodarczyk, Nicolas Blanchard, Antoine Berry, Sarah Abbes, David Colongo, Babacar Faye, Jean-Michel Augereau, Caroline Lacroux, Xavier Iriart, Françoise Benoit-Vical
Cerebral malaria (CM) is the most severe manifestation of human malaria yet is still poorly understood. Mouse models have been developed to address the subject. However, their relevance to mimic human pathogenesis is largely debated. Here we study an alternative cerebral malaria model with an experimental Plasmodium berghei Keyberg 173 (K173) infection in Sprague Dawley rats. As in Human, not all infected subjects showed cerebral malaria, with 45% of the rats exhibiting Experimental Cerebral Malaria (ECM) symptoms while the majority (55%) of the remaining rats developed severe anemia and hyperparasitemia (NoECM)...
2017: PloS One
https://www.readbyqxmd.com/read/28724935/histone-deacetylase-3-is-required-for-inkt-cell-development
#19
Puspa Thapa, Sinibaldo Romero Arocha, Ji Young Chung, Derek B Sant'Angelo, Virginia Smith Shapiro
NKT cells are a distinct subset that have developmental requirements that often differ from conventional T cells. Here, we show that NKT-specific deletion of Hdac3 results in a severe reduction in the number of iNKT cells, particularly of NKT1 cells. In addition, there is decreased cytokine production by Hdac3-deficient NKT2 and NKT17 cells. Hdac3-deficient iNKT cells have increased cell death that is not rescued by transgenic expression of Bcl-2 or Bcl-xL. Hdac3-deficient iNKT cells have less Cyto-ID staining and lower LC3A/B expression, indicative of reduced autophagy...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28700649/autophagy-mediates-cell-cycle-response-by-regulating-nucleocytoplasmic-transport-of-pax6-in-limbal-stem-cells-under-ultraviolet-a-stress
#20
Maria Laggner, Andreas Pollreisz, Gerald Schmidinger, Ursula Schmidt-Erfurth, Ying-Ting Chen
Limbal stem cells (LSC) account for homeostasis and regeneration of corneal epithelium. Solar ultraviolet A (UVA) is the major source causing oxidative damage in the ocular surface. Autophagy, a lysosomal degradation mechanism, is essential for physiologic function and stress defense of stem cells. PAX6, a master transcription factor governing corneal homeostasis by regulating cell cycle and cell fate of LSC, responds to oxidative stress by nucleocytoplasmic shuttling. Impaired autophagy and deregulated PAX6 have been reported in oxidative stress-related ocular surface disorders...
2017: PloS One
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