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https://www.readbyqxmd.com/read/29140379/seven-year-follow-up-of-full-arch-prostheses-supported-by-four-implants-a-prospective-study
#1
Karen Vaz Ayub, Eduardo Antônio Ayub, Accácio Lins do Valle, Gerson Bonfante, Thiago Pegoraro, Luiz Fernando
PURPOSE: To evaluate biologic and prosthetic outcomes of implant-supported mandibular full-arch fixed prostheses treated with the All-on-4 treatment concept after 7 years. MATERIALS AND METHODS: Patients were selected to receive full-arch fixed immediate prostheses supported by four implants up to 72 hours after surgery. The following biologic aspects were evaluated: Plaque Index (PI) and Bleeding Index (BI), implant stability by resonance frequency, and marginal bone loss (MBL) measured with the aid of periapical radiographs...
November 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29140252/generation-of-genipin-cross-linked-fibrin-agarose-hydrogels-tissue-like-models-for-tissue-engineering-applications
#2
Fernando Campos, Ana Belen Bonhame-Espinosa, Gerson Vizcaino, Ismael Angel Rodriguez, Daniel Durand-Herrera, Modesto T Lopez-Lopez, Indalecio Sánchez-Montesinos, Miguel Alaminos, María Del Carmen Sánchez-Quevedo, Víctor Carriel
Generation of biomimetic and biocompatible artificial tissues is the basic research objective for tissue engineering (TE). In this sense, the biofabrication of scaffolds that resemble the tissues' extracellular matrix (ECM) is an essential aim in this field. Uncompressed and nanostructured fibrin-agarose hydrogels (FAH and NFAH respectively) emerged as promising scaffold in TE, but its structure and biomechanical properties must be improved in order to broad their TE applications. Here we generated and characterized novel membrane-like models with increased structural and biomechanical properties based on the chemical cross-linking of FAH and NFAH with genipin (GP at 0...
November 15, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/29120754/new-opportunities-and-challenges-to-defeat-cancer-stem-cells
#3
REVIEW
Erika K Ramos, Andrew D Hoffmann, Stanton L Gerson, Huiping Liu
Cancer stem cells (CSCs) are a subpopulation of cancer cells that are capable of self-renewal, proliferation, differentiation, plastic adaptation, and immune regulation, thereby mediating tumorigenesis, metastasis, and therapy resistance. CSCs are associated with cancer progression and clinical outcome in cancer patients. Successful targeting of CSCs will therefore be necessary to eradicate and cure cancer. Functional regulators of stem cell (stemness) signaling pathways in human cancers have brought new opportunities to target CSCs and reframe cancer-targeting strategies in clinical settings...
November 2017: Trends in Cancer
https://www.readbyqxmd.com/read/29117941/loss-of-uracil-dna-glycosylase-selectively-re-sensitizes-p53-mutant-and-deficient-cells-to-5-fdu
#4
Yan Yan, Yulan Qing, John J Pink, Stanton L Gerson
Thymidylate synthase (TS) inhibitors including fluoropyrimidines [e.g., 5-Fluorouracil (5-FU) and 5-Fluorodeoxyuridine (5-FdU, floxuridine)] and antifolates (e.g., pemetrexed) are widely used against solid tumors. Previously, we reported that shRNA-mediated knockdown (KD) of uracil DNA glycosylase (UDG) sensitized cancer cells to 5-FdU. Since p53 has also been shown as a critical determinant of the sensitivity to TS inhibitors, we further interrogated 5-FdU cytotoxicity after UDG depletion with regard to p53 status...
November 8, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/29117374/new-pyrethroids-for-use-against-tuta-absoluta-lepidoptera-gelechiidae-their-toxicity-and-control-speed
#5
Shaiene C Moreno, Flaviano O Silvério, Marcelo C Picanço, Elson S Alvarenga, Renata R Pereira, Paulo A Santana Júnior, Gerson A Silva
Insect pests are responsible for major losses in crop productivity, and insecticides are the main tools used to control these organisms. There is increasing demand for new products for pest management. Therefore, the aim of this study was to assess the toxicity of pyrethroids with acid moiety modifications to measure the insecticidal activity of these compounds on Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae). First, we synthesized E/Z mixtures of five pyrethroids: [9], [10], [11], [12], and [13]. Then, we separated the cis and trans pyrethroid isomers of [9], [10], [11], and [12]...
September 1, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/29111137/biogenic-silver-nanoparticles-inducing-leishmania-amazonensis-promastigote-and-amastigote-death-in-vitro
#6
Jacqueline Rodrigues Fanti, Fernanda Tomiotto-Pellissier, Milena Menegazzo Miranda-Sapla, Allan Henrique Depieri Cataneo, Célia Guadalupe Tardeli de Jesus Andrade, Carolina Panis, Jean Henrique da Silva Rodrigues, Pryscilla Fanini Wowk, Diogo Kuczera, Idessania Nazareth Costa, Celso Vataru Nakamura, Gerson Nakazato, Nelson Durán, Wander Rogério Pavanelli, Ivete Conchon-Costa
American Cutaneous Leishmaniasis (ACL) is a zoonosis caused by Leishmania protozoa. The ACL chemotherapy available is unsatisfactory motivating researches to seek alternative treatments. In this study, we investigated the action of biogenic silver nanoparticle (AgNp-bio) obtained from Fusarium oxysporium, against Leishmania amazonensis promastigote and amastigote forms. The AgNp-bio promastigote treatment results in promastigote death leading to apoptosis-like events due an increased production of reactive oxygen species (ROS), loss of mitochondrial integrity, phosphatidylserine exposure and damage on promastigotes membrane...
October 27, 2017: Acta Tropica
https://www.readbyqxmd.com/read/29108983/a-novel-device-for-improving-visualization-in-an-inadequately-prepared-colon
#7
Seth Gross, Lauren Gerson, Blair Lewis, Robert Ganz
BACKGROUND AND AIMS: Adequate bowel preparation is essential for a quality colonoscopy. Poor bowel preparation can result in longer procedural times, missed adenomas, earlier repeat procedures, increase costs, and decreased patient satisfaction [1-5]. Pure-Vu (MOTUS GI, Tirat Carmel, Israel) is a system that facilitates intra-procedural cleaning of a poorly prepared colon during a colonoscopy by irrigating the colon and evacuating the fluid and feces. The study aims were to evaluate Pure-Vu's cleansing capabilities and its usability and safety, in a live animal colon METHODS: The Pure-Vu system was used by four experienced gastroenterologists in 35 Yorkshire cross swine (66% female) that received a reduced bowel preparation to ensure an inadequate bowel preparation at baseline...
November 3, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/29108368/phase-i-clinical-trial-of-the-base-excision-repair-inhibitor-methoxyamine-in-combination-with-fludarabine-for-patients-with-advanced-hematologic-malignancies
#8
Paolo F Caimi, Brenda W Cooper, Basem M William, Afshin Dowlati, Paul M Barr, Pingfu Fu, John Pink, Yan Xu, Hillard M Lazarus, Marcos de Lima, Stanton L Gerson
Purpose: We determined the safety, pharmacokinetics, pharmacodynamics and recommended phase II dose of the base excision repair blocker methoxyamine combined with fludarabine. Materials and Methods: This was a phase I study with intravenous fludarabine (25 mg/m(2), days 1-5), and methoxyamine (15 mg/m(2)-120 mg/m(2), once). A maximum of six cycles were given. Adult patients with relapsed/refractory hematologic malignancies, excluding acute myeloid leukemia, were eligible...
October 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/29097181/ctp-synthase-forms-the-cytoophidium-in-human-hepatocellular-carcinoma
#9
Chia-Chun Chang, Yung-Ming Jeng, Min Peng, Gerson Dierley Keppeke, Li-Ying Sung, Ji-Long Liu
CTP synthase (CTPS) can aggregate into an intracellular macrostructure, the cytoophidium, in various organisms including human cells. Previous studies have shown that assembly of human CTPS cytoophidia may be correlated with the cellular metabolic status, and is able to promote the activity of CTPS. A correlation between the cytoophidium and cancer metabolism has been proposed but not yet been revealed. In the current study we provide clear evidence of the presence of CTPS cytoophidia in various human cancers and some non-cancerous tissues...
October 31, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/29081364/usefulness-of-thick-blood-smears-in-the-diagnosis-of-disseminated-histoplasmosis
#10
José Y Rodríguez, Gerson J Rodríguez, Maria J Mendoza, Carlos A Álvarez-Moreno
No abstract text is available yet for this article.
November 9, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/29078131/neuromuscular-electrophysiological-disorders-and-muscle-atrophy-in-mechanically-ventilated-traumatic-brain-injury-patients-new-insights-from-a-prospective-observational-study
#11
Paulo Eugênio Silva, Vinicius Maldaner, Luciana Vieira, Karina Livino de Carvalho, Hedian Gomes, Priscilla Melo, Nicolas Babault, Gerson Cipriano, Joao Luiz Quagliotti Durigan
PURPOSE: It is unclear whether the muscular changes in mechanically-ventilated traumatic brain injury patients (TBI) are only associated with disuse or additionally to neuromuscular electrophysiological disorders (NED). The correlation between muscle atrophy and NED may affect functional outcomes and rehabilitation programs significantly. MATERIAL AND METHODS: An observational study was performed to investigate the presence of NED and muscle atrophy in TBI patients undergoing mechanical ventilation...
October 19, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/29074302/endogenous-antibody-responses-to-mucin-1-in-a-large-multiethnic-cohort-of-patients-with-breast-cancer-and-healthy-controls-role-of-immunoglobulin-and-fc%C3%AE-receptor-genes
#12
Janardan P Pandey, Aryan M Namboodiri, Bethany Wolf, Motoki Iwasaki, Yoshio Kasuga, Gerson S Hamada, Shoichiro Tsugane
High levels of naturally occurring IgG antibodies to mucin 1 (MUC1), a membrane-bound glycoprotein that is overexpressed in patients with breast cancer, are associated with good prognosis. This suggests that endogenous anti-MUC1 antibodies have a protective effect and, through antibody-mediated host immunosurveillance mechanisms, might contribute to a cancer-free state. To test this possibility, we characterized a large number of multiethnic patients with breast cancer and matched controls for IgG antibodies to MUC1...
October 18, 2017: Immunobiology
https://www.readbyqxmd.com/read/29062961/novel-polysaccharide-protein-conjugates-provide-an-immunogenic-13-valent-pneumococcal-conjugate-vaccine-for-s-%C3%A2-pneumoniae
#13
Allison E B Turner, Jonas E Gerson, Helen Y So, Daniel J Krasznai, Adrienne J St Hilaire, Donald F Gerson
Pneumonia remains the single leading cause of childhood death worldwide. Despite the commercial availability of multiple pneumococcal conjugate vaccines (PCVs), high dosage cost and supply shortages prevent PCV delivery to much of the developing world. The current work presents high-yield pneumococcal conjugates that are immunogenic in animals and suitable for use in human vaccine development. The 13-valent pneumococcal conjugate vaccine (PCV-13) investigated in this research incorporated serotypes 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F...
March 2017: Synthetic and Systems Biotechnology
https://www.readbyqxmd.com/read/29040196/carcinoid-syndrome-complicating-a-pancreatic-neuroendocrine-tumor-a-case-report
#14
James N Gerson, Ronald M Witteles, Daniel T Chang, Ramin E Beygui, Andrei H Iagaru, Pamela L Kunz
Neuroendocrine tumors (NETs) comprise a heterogeneous group of neoplasms. These tumors can produce a wide variety of hormones that can lead to syndromes of hormone excess, such as carcinoid syndrome. We present the case of a 47-year-old man who presented with right upper quadrant abdominal pain and emesis. He was found to have metastatic pancreatic NET and was treated with systemic chemotherapy. He subsequently developed dyspnea on exertion and was found to have severe right-sided heart disease secondary to elevated levels of serum serotonin...
November 2017: Pancreas
https://www.readbyqxmd.com/read/29035241/eustigmaeus-johnstoni-zhang-gerson-acari-stigmaeidae-a-parasitic-mite-species-detected-in-phlebotomus-papatasi-diptera-psychodidae-specimens-collected-from-ayd%C3%A4-n-turkey
#15
Metin Pekağırbaş, Mehmet Karakuş, Suha Kenan Arserim, Salih Doğan, Hasan Eren, Seray Töz, Yusuf Özbel
OBJECTIVE: We aimed to report the presence of the parasitic mite Eustigmaeus johnstoni Zhang - Gerson (E. johnstoni) on the sand fly species Phlebotomus papatasi (P. papatasi) collected in Aydın province, Turkey. METHODS: Sand flies were collected from nature by CDC light traps in Nazilli town in Aydın province and were separated according to collection localities. Head and genital areas were cut and mounted for species identification, and midgut contents were checked for the possible presence of Leishmania parasites under a light microscope...
September 2017: Türkiye Parazitolojii Dergisi
https://www.readbyqxmd.com/read/29033380/cd105-is-regulated-by-hsa-mir-1287-and-its-expression-is-inversely-correlated-with-osteopotential-in-shed
#16
Felipe Augusto André Ishiy, Roberto Dalto Fanganiello, Gerson Shigeru Kobayashi, Erika Kague, Patrícia Semedo Kuriki, Maria Rita Passos-Bueno
A more accurate understanding of the molecular mechanisms and signaling pathways underpinning human mesenchymal stem cell (MSC) plasticity and differentiation properties is pivotal for accomplishing solid and diligent translation of MSC-based experimental therapeutics and clinical trials to broad clinical practice. In addition, this knowledge enables selection of MSC subpopulations with increased differentiation potential and/or use of exogenous factors to boost this potential. Here, we report that CD105 (ENG) is a predictive biomarker of osteogenic potential in two types of MSCs: stem cells from human exfoliated deciduous teeth (SHED) and human adipose-derived stem cells (hASC)...
October 13, 2017: Bone
https://www.readbyqxmd.com/read/29033047/effect-of-hemodialysis-on-levels-of-high-sensitivity-cardiac-troponin-t
#17
Michael Chen, Howard Gerson, Shaun Eintracht, Sharon J Nessim, Elizabeth MacNamara
Cardiac troponin (cTn) is essential for the diagnosis of an acute coronary syndrome (ACS). However, in end-stage renal disease (ESRD) baseline cTn levels are often elevated, and it is unknown whether the hemodialysis (HD) procedure affects cTn levels. This leaves clinicians unsure of how to interpret cTn in HD patients with cardiac ischemia. We therefore sought to determine if plasma levels of high-sensitivity cardiac troponin T (hs-cTnT) vary during or after HD treatment. We prospectively enrolled 10 chronic HD patients who were admitted to our institution...
September 4, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/29032293/facilitating-problem-based-learning-among-undergraduate-nursing-students-a-qualitative-systematic-review
#18
REVIEW
Jacqueline Wosinski, Anne E Belcher, Yvan Dürrenberger, Anne-Claude Allin, Coraline Stormacq, Linda Gerson
OBJECTIVES: The purpose of this study was to identify and synthesize the best available evidence on the perspective of undergraduate nursing students on facilitating elements that contribute to their success with PBL. DESIGN: a qualitative systematic review of the literature according to meta-aggregative methodology using the JBI SUMARI system was conducted. DATA SOURCES: Data was collected across CINAHL, Medline, Embase, Eric, Teacher Reference Center and reference lists...
September 8, 2017: Nurse Education Today
https://www.readbyqxmd.com/read/28987572/genotype-imputation-in-a-tropical-crossbred-dairy-cattle-population
#19
Gerson A Oliveira Júnior, Tatiane C S Chud, Ricardo V Ventura, Dorian J Garrick, John B Cole, Danísio P Munari, José B S Ferraz, Erik Mullart, Sue DeNise, Shannon Smith, Marcos Vinícius G B da Silva
The objective of this study was to investigate different strategies for genotype imputation in a population of crossbred Girolando (Gyr × Holstein) dairy cattle. The data set consisted of 478 Girolando, 583 Gyr, and 1,198 Holstein sires genotyped at high density with the Illumina BovineHD (Illumina, San Diego, CA) panel, which includes ∼777K markers. The accuracy of imputation from low (20K) and medium densities (50K and 70K) to the HD panel density and from low to 50K density were investigated. Seven scenarios using different reference populations (RPop) considering Girolando, Gyr, and Holstein breeds separately or combinations of animals of these breeds were tested for imputing genotypes of 166 randomly chosen Girolando animals...
October 4, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28977318/lifestyle-indicators-and-cardiorespiratory-fitness-in-adolescents
#20
Eduardo Rossato de Victo, Gerson Luis de Moraes Ferrari, João Pedro da Silva, Timóteo Leandro Araújo, Victor Keihan Rodrigues Matsudo
OBJECTIVE: To evaluate the lifestyle indicators associated with cardiorespiratory fitness in adolescents from Ilhabela, São Paulo, Brazil. METHODS: The sample consisted of 181 adolescents (53% male) from the Mixed Longitudinal Project on Growth, Development, and Physical Fitness of Ilhabela. Body composition (weight, height, and body mass index, or BMI), school transportation, time spent sitting, physical activity, sports, television time (TV), having a TV in the bedroom, sleep, health perception, diet, and economic status (ES) were analyzed...
January 2017: Revista Paulista de Pediatria: Orgão Oficial da Sociedade de Pediatria de São Paulo
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