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https://www.readbyqxmd.com/read/28222435/extracorporal-shock-waves-activate-migration-proliferation-and-inflammatory-pathways-in-fibroblasts-and-keratinocytes-and-improve-wound-healing-in-an-open-label-single-arm-study-in-patients-with-therapy-refractory-chronic-leg-ulcers
#1
Ilknur Aschermann, Seema Noor, Sascha Venturelli, Tobias Sinnberg, Christian Busch, Christian D Mnich
BACKGROUND/AIMS: Chronic leg ulcers (CLUs) are globally a major cause of morbidity and mortality with increasing prevalence. Their treatment is highly challenging, and many conservative, surgical or advanced therapies have been suggested, but with little overall efficacy. Since the 1980s extracorporal shock wave therapy (ESWT) has gained interest as treatment for specific indications. Here, we report that patients with CLU showed wound healing after ESWT and investigated the underlying molecular mechanisms...
February 20, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28222427/impact-of-fmr1-pre-mutation-status-on-blastocyst-development-in-patients-undergoing-pre-implantation-genetic-diagnosis
#2
Anne P Hutchinson, Nigel Pereira, Debra P Lilienthal, Siobhán Coveney, Jovana P Lekovich, Rony T Elias, Zev Rosenwaks
BACKGROUND/AIMS: The study aimed to investigate the impact of fragile X mental retardation 1 (FMR1) pre-mutation status on blastocyst development in patients undergoing pre-implantation genetic diagnosis (PGD). METHODS: Case-control study of patients <40 years undergoing PGD at blastocyst stage for FMR1 pre-mutation status. Age-matched patients undergoing PGD for other single gene disorders were considered controls. Blastocyst development, calculated per metaphase II (MII) oocyte retrieved and per 2 pronuclear (2PN) embryos, was compared between the 2 groups...
February 22, 2017: Gynecologic and Obstetric Investigation
https://www.readbyqxmd.com/read/28222387/baicalein-enhances-the-osteogenic-differentiation-of-human-periodontal-ligament-cells-by-activating-the-wnt-%C3%AE-catenin-signaling-pathway
#3
Li-Jiao Chen, Bi-Bo Hu, Xin-Lian Shi, Man-Man Ren, Wen-Bin Yu, Sheng-Dan Cen, Rong-Dang Hu, Hui Deng
OBJECTIVE: Periodontium regeneration is one of the most important processes for periodontitis therapy. Human periodontal ligament cells (hPDLCs) play a vital role in the repair and regeneration of periodontal tissues. Our study aimed to investigated the mechanisms underlying the promotion of hPLDCs osteogenic differentiation by baicalein. DESIGN: hPDLCs were obtained from periodontal ligament (PDL) tissues by primary culture. The MTT assay was used to determine the growth curves of hPDLCs treated with different concentrations of baicalein (1...
February 7, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28222329/inflammatory-chemokines-and-their-receptors-in-human-visceral-leishmaniasis-gene-expression-profile-in-peripheral-blood-splenic-cellular-sources-and-their-impact-on-trafficking-of-inflammatory-cells
#4
Neetu Singh, Shyam Sundar
Chemokines play an important role in determining cellular composition at inflammatory sites, and as such, influence disease outcome. In this study, we investigated the expression profile and splenic cellular source of various inflammatory chemokines and their receptors in human visceral leishmaniasis (VL). The expression of chemokines or their receptors was measured at the gene and protein level by employing real time qPCR and a cytometric bead array assay, respectively. In addition, the cellular source of chemokines and their receptors in the spleen was identified employing gene expression analyses in sequentially selected cell subsets...
February 18, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28222255/stemness-signature-of-equine-marrow-derived-mesenchymal-stem-cells
#5
Morteza Zahedi, Abbas Parham, Hesam Dehghani, Hossein Kazemi Mehrjerdi
Background: Application of competent cells such as mesenchymal stem cells (MSCs) for treatment of musculoskeletal disorders in equine athletes is increasingly needed. Moreover, similarities of horse and human in size, load and types of joint injuries, make horse as a good model for MSCs therapy studies. This study was designed to isolate and characterize stemness signature of equine bone marrow-derived mesenchymal stem cells (BM-MSCs). Methods: BM of three mares was aspirated and the mononuclear cells (MNCs) were isolated using density gradient...
February 28, 2017: International Journal of Stem Cells
https://www.readbyqxmd.com/read/28221927/characterization-of-extended-spectrum-%C3%AE-lactamase-producing-escherichia-coli-isolates-from-pigs-and-farm-workers
#6
Hongna Zhang, Zhenzhen Zhai, Qing Li, Linghong Liu, Shuyuan Guo, Qimeng Li, Lingling Yang, Chaoqun Ye, Weishan Chang, Jing Zhai
Food-producing animals can serve as reservoirs for extended-spectrum β-lactamase (ESBL)-producing Escherichia coli . The present study aimed to characterize and compare ESBL-carrying E. coli isolates from both pigs and farm workers. Rectal swabs were obtained from 60 pigs on four pig-fattening farms (15 samples per farm), and rectal swabs were taken from 40 farm workers on these farms (10 samples per farm). ESBL-carrying E. coli isolates from the workers and pigs were characterized by ESBL genotype, antibiotic susceptibility, enterobacterial repetitive intergenic consensus type, and multilocus sequence type...
September 2016: Journal of Food Protection
https://www.readbyqxmd.com/read/28221881/antimicrobial-resistance-and-molecular-characterization-of-extended-spectrum-%C3%AE-lactamases-and-other-escherichia-coli-isolated-from-food-of-animal-origin-and-human-intestinal-isolates
#7
Manja Krizman, Jerneja Ambrozic Avgustin, Irena Zdovc, Majda Golob, Marija Trkov, Urska Jamnikar Ciglenecki, Majda Biasizzo, Andrej Kirbis
Antibiotics have always appeared miraculous, saving innumerable lives. However, the unwise use of antimicrobial drugs has led to the appearance of resistant bacteria. The purpose of this study was to evaluate antimicrobial resistance in Escherichia coli (n =160) isolated from food of animal origin. The focus was on E. coli -producing extended-spectrum β-lactamases. E. coli was chosen because it is a part of the normal microbiota in mammals and can enter the food chain during slaughtering and food manipulation...
January 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28221861/inhibiting-histone-deacetylase-as-a-means-to-reverse-resistance-to-angiogenesis-inhibitors-phase-i-study-of-abexinostat-plus-pazopanib-in-advanced-solid-tumor-malignancies
#8
Rahul Aggarwal, Scott Thomas, Nela Pawlowska, Imke Bartelink, Jennifer Grabowsky, Thierry Jahan, Amy Cripps, Armand Harb, Jim Leng, Anne Reinert, Ilaria Mastroserio, Thach-Giao Truong, Charles J Ryan, Pamela N Munster
Purpose This phase I trial evaluated epigenetic modulation of vascular endothelial growth factor (VEGF) and hypoxia-inducible factor by using a histone deacetylase abexinostat in combination with pazopanib to enhance response and reverse resistance. Patients and Methods Pazopanib was administered once a day on days 1 to 28 and abexinostat was administered orally twice a day on days 1 to 5, 8 to 12, and 15 to 19 (schedule A) or on days 1 to 4, 8 to 11, and 15 to 18 (schedule B). Dose escalation (3 + 3 design) in all solid tumors was followed by dose expansion in renal cell carcinoma (RCC)...
February 21, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28221841/tetracycline-resistance-patterns-of-lactobacillus-buchneri-group-strains
#9
Marlies Feichtinger, Sigrid Mayrhofer, Wolfgang Kneifel, Konrad J Domig
Lactobacilli are applied as starter cultures for controlled fermentation in the production of food and feed. Among other lactobacilli, members of the Lactobacillus buchneri group are used in fermented milk, wine, and silage. Most of the L. buchneri species used for the manufacturing of food or feed are already on the list for qualified presumption of safety status and are recommended as biological agents by the European Food Safety Authority. Consequently, new strains intended as food or feed additives do not require any additional safety check than confirming the absence of transferable antibiotic resistance determinants...
October 2016: Journal of Food Protection
https://www.readbyqxmd.com/read/28221768/formation-of-nitrogenase-nifdk-tetramers-in-the-mitochondria-of-saccharomyces-cerevisiae
#10
Stefan Burén, Eric M Young, Elizabeth A Sweeny, Gema López-Torrejón, Marcel Veldhuizen, Christopher A Voigt, Luis M Rubio
Transferring the prokaryotic enzyme nitrogenase into a eukaryotic host with the final aim of developing N2 fixing cereal crops would revolutionize agricultural systems worldwide. Targeting it to mitochondria has potential advantages because of the organelle's high O2 consumption and the presence of bacterial-type iron-sulfur cluster biosynthetic machinery. In this study, we constructed 96 strains of Saccharomyces cerevisiae where transcriptional units comprising nine Azotobacter vinelandii nif genes (nifHDKUSMBEN) were integrated into the genome...
February 21, 2017: ACS Synthetic Biology
https://www.readbyqxmd.com/read/28221723/animal-component-free-agrobacterium-tumefaciens-cultivation-media-for-better-gmp-compliance-increases-biomass-yield-and-pharmaceutical-protein-expression-in-nicotiana-benthamiana
#11
Marcel Houdelet, Anna Galinski, Tanja Holland, Kathrin Wenzel, Stefan Schillberg, Johannes Felix Buyel
Transient expression systems allow the rapid production of recombinant proteins in plants. Such systems can be scaled up to several hundred kilograms of biomass, making them suitable for the production of pharmaceutical proteins required at short notice, such as emergency vaccines. However, large-scale transient expression requires the production of recombinant Agrobacterium tumefaciens strains with the capacity for efficient gene transfer to plant cells. The complex media often used for the cultivation of this species typically include animal-derived ingredients that can contain human pathogens, thus conflicting with the requirements of good manufacturing practice (GMP)...
February 21, 2017: Biotechnology Journal
https://www.readbyqxmd.com/read/28221369/chemistry-based-molecular-signature-underlying-the-atypia-of-clozapine
#12
T Cardozo, E Shmelkov, K Felsovalyi, J Swetnam, T Butler, D Malaspina, S V Shmelkov
The central nervous system is functionally organized as a dynamic network of interacting neural circuits that underlies observable behaviors. At higher resolution, these behaviors, or phenotypes, are defined by the activity of a specific set of biomolecules within those circuits. Identification of molecules that govern psychiatric phenotypes is a major challenge. The only organic molecular entities objectively associated with psychiatric phenotypes in humans are drugs that induce psychiatric phenotypes and drugs used for treatment of specific psychiatric conditions...
February 21, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28221337/modulation-of-digital-flexor-tendon-healing-by-vascular-endothelial-growth-factor-gene-transfection-in-a-chicken-model
#13
W F Mao, Y F Wu, Q Q Yang, Y L Zhou, J B Tang
A major challenge in tendon injury is the weak intrinsic healing capacity of tendon, which may cause re-rupture after surgery. Growth factors are believed to be critical during tendon healing. This study aimed to investigate the effects of vascular endothelial growth factor (VEGF) genes delivered by adeno-associated virus (AAV) vectors on tendon healing and molecular events involved in a chicken model. One hundred and twenty eight deep flexor tendons in the long toes of chickens were completely transected and injected with 2 × 10(9) particles of AAV2-VEGF or saline before surgically repaired...
February 21, 2017: Gene Therapy
https://www.readbyqxmd.com/read/28221136/an-essential-dual-function-complex-mediates-erythrocyte-invasion-and-channel-mediated-nutrient-uptake-in-malaria-parasites
#14
Daisuke Ito, Marc A Schureck, Sanjay A Desai
Malaria parasites evade immune detection by growth and replication within erythrocytes. After erythrocyte invasion, the intracellular pathogen must increase host cell uptake of nutrients from plasma. Here, we report that the parasite-encoded RhopH complex contributes to both invasion and channel-mediated nutrient uptake. As rhoph2 and rhoph3 gene knockouts were not viable in the human P. falciparum pathogen, we used conditional knockdowns to determine that the encoded proteins are essential and to identify their stage-specific functions...
February 21, 2017: ELife
https://www.readbyqxmd.com/read/28221018/low-efficiency-upconversion-nanoparticles-for-high-resolution-coalignment-of-near-infrared-and-visible-light-paths-on-a-light-microscope
#15
Sriramkumar Sundaramoorthy, Adrian Garcia Badaracco, Sophia M Hirsch, Jun Hong Park, Tim Davies, Julien Dumont, Mimi Shirasu-Hiza, Andrew C Kummel, Julie C Canman
The combination of near-infrared (NIR) and visible wavelengths in light microscopy for biological studies is increasingly common. For example, many fields of biology are developing the use of NIR for optogenetics, in which an NIR laser induces a change in gene expression and/or protein function. One major technical barrier in working with both NIR and visible light on an optical microscope is obtaining their precise coalignment at the imaging plane position. Photon upconverting particles (UCPs) can bridge this gap as they are excited by NIR light but emit in the visible range via an anti-Stokes luminescence mechanism...
February 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28220841/an-agrobacterium-tumefaciens-strain-with-gamma-aminobutyric-acid-transaminase-activity-shows-an-enhanced-genetic-transformation-ability-in-plants
#16
Satoko Nonaka, Tatsuhiko Someya, Sha Zhou, Mariko Takayama, Kouji Nakamura, Hiroshi Ezura
Agrobacterium tumefaciens has the unique ability to mediate inter-kingdom DNA transfer, and for this reason, it has been utilized for plant genetic engineering. To increase the transformation frequency in plant genetic engineering, we focused on gamma-aminobutyric acid (GABA), which is a negative factor in the Agrobacterium-plant interaction. Recent studies have shown contradictory results regarding the effects of GABA on vir gene expression, leading to the speculation that GABA inhibits T-DNA transfer. In this study, we examined the effect of GABA on T-DNA transfer using a tomato line with a low GABA content...
February 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28220409/irreversibility-of-symptoms-with-biotin-therapy-in-an-adult-with-profound-biotinidase-deficiency
#17
Patrick Ferreira, Alicia Chan, Barry Wolf
We report a 36-year-old woman who exhibited progressive optic atrophy at 13 years old, then stroke-like episodes and spastic diplegia in her 20s. Biotinidase deficiency was not readily considered in the differential diagnosis, and the definitive diagnosis was not made until pathological variants of the biotinidase gene (BTD) were found by exome sequencing. Profound biotinidase deficiency was confirmed by enzyme analysis. Unfortunately, her symptoms did not resolve or improve with biotin treatment. Biotin therapy is essential for all individuals with profound biotinidase deficiency and for preventing further damage in those who already exhibit irreversible neurological damage...
February 21, 2017: JIMD Reports
https://www.readbyqxmd.com/read/28220393/common-and-distinct-regulation-of-human-and-mouse-brown-and-beige-adipose-tissues-a-promising-therapeutic-target-for-obesity
#18
REVIEW
Xuejiao Liu, Christopher Cervantes, Feng Liu
Obesity, which underlies various metabolic and cardiovascular diseases, is a growing public health challenge for which established therapies are inadequate. Given the current obesity epidemic, there is a pressing need for more novel therapeutic strategies that will help adult individuals to manage their weight. One promising therapeutic intervention for reducing obesity is to enhance energy expenditure. Investigations into human brown fat and the recently discovered beige/brite fat have galvanized intense research efforts during the past decade because of their pivotal roles in energy dissipation...
February 20, 2017: Protein & Cell
https://www.readbyqxmd.com/read/28220389/polymorphisms-in-key-bone-modulator-cytokines-genes-influence-bisphosphonates-therapy-in-postmenopausal-women
#19
C A D Lima, N R Javorski, A P O Souza, A D Barbosa, A P M C Valença, S Crovella, P R E Souza, J De Azevedo Silva, P Sandrin-Garcia
Osteoporosis is a multifactorial and debilitating disease resulting from decreased bone mineral density (BMD) and loss of tissue microarchitecture. Ineffective therapies may lead to bone fractures and subsequent death. Single nucleotide polymorphisms (SNPs) in key immune regulator genes have been associated with therapeutic response to bisphosphonates, which are the first therapeutic line of choice for osteoporosis. However, cytokine pathways and their relation with therapeutic adhesion remain to be fully elucidated...
February 21, 2017: Inflammopharmacology
https://www.readbyqxmd.com/read/28220284/untangling-convoluted-taxonomy-of-chambriella-rego-chubb-pavanelli-1999-cestoda-proteocephalidae-with-erection-of-riggenbachiella-n-g-and-the-description-of-a-new-species-from-pimelodid-catfishes-in-the-neotropical-region
#20
Philippe Vieira Alves, Alain de Chambrier, José Luis Luque, Tomáš Scholz
As part of a complex revision of proteocephalid cestodes parasitic in freshwater bony fishes of the Neotropical Region, the genus Chambriella Rego, Chubb & Pavanelli, 1999 is redefined based on detailed examination of type-specimens and newly collected material of both nominal species of the genus. This examination revealed that the type-species C. agostinhoi (Pavanelli & Santos, 1992) from Zungaro jahu (Ihering) (type-host) and Z. zungaro (Humboldt) is indistinguishable from Lenhataenia megacephala (Woodland, 1934) from Sorubimichthys planiceps (Spix & Agassiz) (all hosts Siluriformes: Pimelodidae), the type- and only species of the genus...
February 20, 2017: Systematic Parasitology
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