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https://www.readbyqxmd.com/read/29150957/randomized-controlled-clinical-two-center-study-using-xenogeneic-block-grafts-loaded-with-recombinant-human-bone-morphogenetic-protein-2-or-autogenous-bone-blocks-for-lateral-ridge-augmentation
#1
Daniel S Thoma, Michael Payer, Norbert Jakse, Stefan P Bienz, Jürg Hüsler, Patrick R Schmidlin, Ui-Won Jung, Christoph H F Hämmerle, Ronald E Jung
OBJECTIVES: to test whether or not the use of a xenogeneic block loaded with recombinant human bone morphogenetic protein-2 (rhBMP-2) results in different bone quantity and quality compared to an autogenous bone block. MATERIALS AND METHODS: 24 patients with insufficient bone volume for implant placement were randomly assigned to two treatment modalities: a xenogeneic bone block loaded with rhBMP-2 (test) or an autogenous bone block (control). The horizontal ridge width was evaluated prior to augmentation, after augmentation and at 4 months...
November 18, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/29150911/jak2-v617f-mutation-can-be-reliably-detected-in-serum-using-droplet-digital-pcr
#2
C F Nystrand, W Ghanima, A Waage, C M Jonassen
INTRODUCTION: Detection of the JAK2 V617F mutation is a key step in the diagnosis of myeloproliferative neoplasms (MPN). Sensitive real-time quantitative PCR (qPCR) detection on peripheral blood (PB) is the most widely used method. The main objective of this study was to determine whether serum, the most common material available in archival biobanks, is a good liquid biopsy for detecting and quantifying the JAK2 V617F mutation using droplet digital PCR (ddPCR). METHODS: Paired PB and serum samples from 66 patients with MPN were used...
November 17, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/29150847/chronic-sun-exposure-is-associated-with-distinct-histone-acetylation-changes-in-human-skin
#3
S Ding, J Chen, Q Zeng, J Lu, L Tan, A Guo, J Kang, S Yang, Y Xiang, C Zuo, J Huang
BACKGROUND: Photoaging is attributed to continuous sunlight or artificial UV exposure and manifests the clinical and histological changes of skin. Epigenetic changes have been found to be involved in the pathogenesis of photoaging. However, the underlying mechanisms are unclear. OBJECTIVES: To analyse histone modification patterns in sun-exposed and non-exposed skins, and identify the abnormally histone modified-genes related to photoaging. METHODS: Skin biopsies were collected both from the outer forearm (sun-exposed area) and the buttock (sun-protected area) in 20 healthy middle-aged female volunteers...
November 18, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/29150810/liver-fibrosis-alleviation-after-co-transplantation-of-hematopoietic-stem-cells-with-mesenchymal-stem-cells-in-patients-with-thalassemia-major
#4
Ardeshir Ghavamzadeh, Masoud Sotoudeh, Amir Pejman Hashemi Taheri, Kamran Alimoghaddam, Hossein Pashaiefar, Mahdi Jalili, Farhad Shahi, Mohammad Jahani, Marjan Yaghmaie
The aims of this study are to determine the replacement rate of damaged hepatocytes by donor-derived cells in sex-mismatched recipient patients with thalassemia major and to determine whether co-transplantation of mesenchymal stem cells and hematopoietic stem cells (HSCs) can alleviate liver fibrosis. Ten sex-mismatched donor-recipient pairs who received co-transplantation of HSCs with mesenchymal stem cells were included in our study. Liver biopsy was performed before transplantation. Two other liver biopsies were performed between 2 and 5 years after transplantation...
November 17, 2017: Annals of Hematology
https://www.readbyqxmd.com/read/29150696/impact-of-prolonged-overfeeding-on-skeletal-muscle-mitochondria-in-healthy-individuals
#5
Frederico G S Toledo, Darcy L Johannsen, Jeffrey D Covington, Sudip Bajpeyi, Bret Goodpaster, Kevin E Conley, Eric Ravussin
AIMS/HYPOTHESES: Reduced mitochondrial capacity in skeletal muscle has been observed in obesity and type 2 diabetes. In humans, the aetiology of this abnormality is not well understood but the possibility that it is secondary to the stress of nutrient overload has been suggested. To test this hypothesis, we examined whether sustained overfeeding decreases skeletal muscle mitochondrial content or impairs function. METHODS: Twenty-six healthy volunteers (21 men, 5 women, age 25...
November 17, 2017: Diabetologia
https://www.readbyqxmd.com/read/29150621/pnpla3-variant-and-portal-periportal-histological-pattern-in-patients-with-biopsy-proven-non-alcoholic-fatty-liver-disease-a-possible-role-for-oxidative-stress
#6
Guido Carpino, Daniele Pastori, Francesco Baratta, Diletta Overi, Giancarlo Labbadia, Licia Polimeni, Alessia Di Costanzo, Gaetano Pannitteri, Roberto Carnevale, Maria Del Ben, Marcello Arca, Francesco Violi, Francesco Angelico, Eugenio Gaudio
Pathogenesis of non-alcoholic fatty liver disease (NAFLD) is influenced by predisposing genetic variations, dysmetabolism, systemic oxidative stress, and local cellular and molecular cross-talks. Patatin-like phospholipase domain containing 3 (PNPLA3) gene I148M variant is a known determinant of NAFLD. Aims were to evaluate whether PNPLA3 I148M variant was associated with a specific histological pattern, hepatic stem/progenitor cell (HpSC) niche activation and serum oxidative stress markers. Liver biopsies were obtained from 54 NAFLD patients...
November 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29150490/gut-roundtable-meeting-paper-selected-recent-advances-in-hepatocellular-carcinoma
#7
REVIEW
Alexander Gerbes, Fabien Zoulim, Herbert Tilg, Jean-François Dufour, Jordi Bruix, Valérie Paradis, Riad Salem, Markus Peck-Radosavljevic, Peter R Galle, Tim F Greten, Jean-Charles Nault, Matias A Avila
Hepatocellular carcinoma (HCC) ranks number three among the most frequent causes of death from solid tumors worldwide. With obesity and fatty liver diseases as risk factors on the rise, HCC represents an ever increasing challenge. While there is still no curative treatment for most patients numerous novel drugs have been proposed, but most ultimately failed in phase III trials. This manuscript targets therapeutic advances and most burning issues. Expert key point summaries and urgent research agenda are provided regarding risk factors, including microbiota, need for prognostic and predictive biomarkers and the equivocal role of liver biopsy...
November 17, 2017: Gut
https://www.readbyqxmd.com/read/29150470/platelet-rich-plasma-in-achilles-tendon-healing-2-path-2-trial-protocol-for-a-multicentre-participant-and-assessor-blinded-parallel-group-randomised-clinical-trial-comparing-platelet-rich-plasma-prp-injection-versus-placebo-injection-for-achilles-tendon-rupture
#8
Joseph Alsousou, David J Keene, Philippa A Hulley, Paul Harrison, Susan Wagland, Christopher Byrne, Michael Maia Schlüssel, Susan J Dutton, Sarah E Lamb, Keith Willett
BACKGROUND: Achilles tendon injuries give rise to substantial long-lasting morbidity and pose considerable challenges for clinicians and patients during the lengthy healing period. Current treatment strategies struggle to curb the burden of this injury on health systems and society due to lengthy rehabilitation, work absence and reinjury risk. Platelet-rich plasma (PRP) is an autologous preparation that has been shown to improve the mechanobiological properties of tendons in laboratory and animal studies...
November 16, 2017: BMJ Open
https://www.readbyqxmd.com/read/29150404/stress-hormones-concentrations-in-the-normal-microenvironment-predict-risk-for-chemically-induced-cancer-in-rats
#9
Vitor Bonetti Valente, Flávia Alves Verza, Felipe Yudi Kabeya Lopes, Joana Zafalon Ferreira, Paulo Sérgio Patto Dos Santos, Maria Lúcia Marçal Mazza Sundefeld, Éder Ricardo Biasoli, Glauco Issamu Miyahara, Ana Maria Pires Soubhia, Mariza de Andrade, Sandra Helena Penha de Oliveira, Daniel Galera Bernabé
Evidence show that stress hormones can influence cancer progression, but its role in carcinogenesis is poorly understood. In this study, we used a new method based on oral carcinogenesis model in rats to test the hypothesis that physiological levels of stress hormones in the normal tissue microenvironment would have significant predictive value for chemically induced cancer occurrence. Male Wistar rats were submitted to a tongue biopsy for measuring not-stress induced levels of norepinephrine, corticosterone, adrenocorticotropic hormone (ACTH) and brain-derived neurotrophic factor (BDNF) in the tissue before carcinogenic induction...
November 8, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29150365/correlation-between-ultrasound-appearance-of-small-breast-cancer-and-axillary-lymph-node-metastasis
#10
Xiaoqin Yu, Xiaoyan Hao, Jing Wan, Yingying Wang, Lan Yu, Binyue Liu
To study the correlation of ultrasonographic signs of small breast cancer (maximum diameter ≤2.0 cm) with axillary lymph node metastasis, pre-operative ultrasonographic images of 153 small breast malignant neoplasms in 143 breast cancer patients were analyzed according to their pathologic features. Of the small breast tumors included, 47 showed axillary lymph node metastasis. Diagnosis of all patients was obtained with radical axillary surgery or a sentinel lymph node biopsy procedure. Ultrasonographic signs included irregular shape, microlobulated contour, spiculation, microcalcification, posterior echo attenuation, blood-flow grade, perforating vessels, changes in fascia or cooper's ligament and maximum cortical thickness of lymph nodes...
November 14, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/29150327/diagnostic-accuracy-of-point-shear-wave-elastography-in-the-detection-of-portal-hypertension-in-pediatric-patients
#11
M Burak Özkan, M C Bilgici, E Eren, G Caltepe
PURPOSE: The purpose of this study was to determine the usefulness of point shear wave elastography (p-SWE) of the liver and spleen for the detection of portal hypertension in pediatric patients. MATERIALS AND METHODS: The study consisted of 38 healthy children and 56 pediatric patients with biopsy-proven liver disease who underwent splenic and liver p-SWE. The diagnostic performance of p-SWE in detecting clinically significant portal hypertension was assessed using receiver operating characteristic (ROC) curves...
November 14, 2017: Diagnostic and Interventional Imaging
https://www.readbyqxmd.com/read/29150302/skin-advanced-glycation-content-reflects-vaginal-tissue-glycation-level-in-relation-to-pregnancy
#12
Homayemem Weli, Jason Cooper, Ying Yang
A few studies have revealed that the advanced glycation content of the vaginal wall in pelvic organ prolapse tissues is elevated. This elevation makes advanced glycation a significant association with the disease. Early detection of vaginal wall glycation could therefore be relevant in the prevention and management of pelvic organ prolapse. A vaginal wall biopsy to detect this would be ideal, but is invasive. Therefore the use of a more accessible organ to access, such as skin, would be beneficial. Our previous independent study suggests that conditions such as pregnancy, can induce a change in the vaginal tissues' glycation content...
November 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29150273/recurrent-and-disseminated-pityriasis-versicolor-a-novel-clinical-form-consequent-to-malassezia-host-interaction
#13
Karina Romero-Sandoval, Anderson Alves Costa, Maria Glória Teixeira Sousa, Celia Regina Furucho, Neusa Valente, Paulo R Criado, Valeria Aoki, Gil Benard
Pityriasis versicolor is a superficial fungal infection caused by Malassezia spp. The aim of this study is to propose the definition of a new clinical entity: the recurrent and disseminated pityriasis versicolor (RDPV). All patients with RDPV were enrolled over an eight-month period. Clinical and epidemiological data were obtained, Malassezia (M.) species were isolated in cultures and identified by phenotypic and molecular characterization, skin biopsies were taken from active lesions, serum levels of immunoglobulin E were obtained and therapeutic schemes were evaluated...
November 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29150092/generation-of-integration-free-induced-pluripotent-stem-cell-lines-derived-from-two-patients-with-x-linked-alport-syndrome-xlas
#14
Bernd Kuebler, Begoña Aran, Laia Miquel-Serra, Yolanda Muñoz, Elisabet Ars, Gemma Bullich, Monica Furlano, Roser Torra, Merce Marti, Anna Veiga, Angel Raya
Skin biopsies were obtained from two male patients with X-linked Alport syndrome (XLAS) with hemizygous COL4A5 mutations in exon 41 or exon 46. Dermal fibroblasts were extracted and reprogrammed by nucleofection with episomal plasmids carrying OCT3/4, SOX2, KLF4 LIN28, L-MYC and p53 shRNA. The generated induced Pluripotent Stem Cell (iPSC) lines AS-FiPS2-Ep6F-28 and AS-FiPS3-Ep6F-9 were free of genomically integrated reprogramming genes, had the specific mutations, a stable karyotype, expressed pluripotency markers and generated embryoid bodies which were differentiated towards the three germ layers in vitro...
September 9, 2017: Stem Cell Research
https://www.readbyqxmd.com/read/29150082/lung-radiodensity-along-the-needle-passage-is-a-quantitative-predictor-of-pneumothorax-after-ct-guided-percutaneous-core-needle-biopsy
#15
H F Zhang, M Y Liao, D Y Zhu, J Chen, Y F Wang
AIM: To analyse whether the lowest value of lung radiodensity along the passage of the biopsy needle is a quantitative predictor of pneumothorax. MATERIALS AND METHODS: CT-guided percutaneous core needle biopsy (PCNB) procedures performed at Zhongnan Hospital were analysed retrospectively. Age, gender, lesion size, lesion depth, lesion location, patient position, number of passages, needle pleural angle, pulmonary bleeding, and lung radiodensity along the needle passage were collected and classified by the extent of pneumothorax...
November 14, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/29150024/decreased-uchl1-expression-as-a-cytologic-biomarker-for-aggressive-behavior-in-pancreatic-neuroendocrine-tumors
#16
Maureen D Moore, Brendan Finnerty, Katherine D Gray, Rana Hoda, Yi-Fan Liu, Lauren Soong, Toni Beninato, Rema Rao, Rasa Zarnegar, Thomas J Fahey
BACKGROUND: There are currently no reliable markers associated with aggressive behavior in well-differentiated and moderately differentiated pancreatic neuroendocrine tumors. We aimed to determine whether expression of ubiquitin carboxyl-terminal hydrolase L1 in conjunction with Ki67 can identify metastatic potential of well-differentiated and moderately differentiated pancreatic neuroendocrine tumors from fine-needle aspiration samples obtained by endoscopic ultrasound. METHODS: Retrospective review of 48 patients with well-differentiated and moderately differentiated pancreatic neuroendocrine tumors diagnosed by endoscopic ultrasound fine-needle aspiration at a single center identified 35 biopsy samples with adequate material for analysis...
November 14, 2017: Surgery
https://www.readbyqxmd.com/read/29149958/efficacy-of-prolonged-and-immediate-release-tacrolimus-in-kidney-transplantation-a-pooled-analysis-of-two-large-randomized-controlled-trials
#17
B K Krämer, L Albano, B Banas, B Charpentier, L Bäckman, H Tedesco-Silva, F Lehner, G A Mondragón-Ramírez, M Glyda, E Cassuto-Viguier, O Viklický, G Mourad, P Rigotti, S Schleibner, N Kamar
BACKGROUND: Two large, prospective studies (12-03; OSAKA) compared the efficacy and tolerability of prolonged-release versus immediate-release tacrolimus in kidney transplant patients also receiving mycophenolate mofetil and low-dose corticosteroids (without induction therapy). METHODS: Data were combined into one database to compare results over 24 weeks using 3 alternative endpoints: biopsy-confirmed acute rejection (BCAR); the Food and Drug Administration composite endpoint (graft loss, BCAR, and loss to follow-up), and the European Medicines Agency composite endpoint (graft loss, BCAR, and graft dysfunction)...
November 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/29149880/analytical-performance-of-envisia-a-genomic-classifier-for-usual-interstitial-pneumonia
#18
Yoonha Choi, Jiayi Lu, Zhanzhi Hu, Daniel G Pankratz, Huimin Jiang, Manqiu Cao, Cristina Marchisano, Jennifer Huiras, Grazyna Fedorowicz, Mei G Wong, Jessica R Anderson, Edward Y Tom, Joshua Babiarz, Urooj Imtiaz, Neil M Barth, P Sean Walsh, Giulia C Kennedy, Jing Huang
BACKGROUND: Clinical guidelines specify that diagnosis of interstitial pulmonary fibrosis (IPF) requires identification of usual interstitial pneumonia (UIP) pattern. While UIP can be identified by high resolution CT of the chest, the results are often inconclusive, making surgical lung biopsy necessary to reach a definitive diagnosis (Raghu et al., Am J Respir Crit Care Med 183(6):788-824, 2011). The Envisia genomic classifier differentiates UIP from non-UIP pathology in transbronchial biopsies (TBB), potentially allowing patients to avoid an invasive procedure (Brown et al...
November 17, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/29149427/the-impact-of-the-national-bowel-screening-program-in-the-netherlands-on-detection-and-treatment-of-endoscopically-unresectable-benign-polyps
#19
C C M Marres, C J Buskens, E Schriever, P C M Verbeek, M W Mundt, W A Bemelman, A W H van de Ven
BACKGROUND: In January 2014, a national bowel cancer screening program started in the Netherlands. The program is being implemented in phases until 2019. Due to this program, an increase in patients referred for a colorectal resection for benign, but endoscopically unresectable polyps, is expected. So far, most resections are performed according to oncological principles despite no pre-operative histological diagnosis of malignancy. The aim of this study was to analyze the increase in referred patients during the first year of the screening program and to compare pathological results and clinical outcome of resections of patients undergoing resection for benign polyps before and after implementation of screening...
November 17, 2017: Techniques in Coloproctology
https://www.readbyqxmd.com/read/29149267/taiwan-biobank-making-cross-database-convergence-possible-in-the-big-data-era
#20
Jui-Chu Lin, Chien-Te Fan, Chia-Cheng Liao, Yao-Sheng Chen
The Taiwan Biobank (TWB) is a biomedical research database of biopsy data from 200,000 participants. Access to this database has been granted to research communities taking part in the development of precision medicines; however, this has raised issues surrounding TWB's access to electronic medical records (EMR). The Personal Data Protection Act of Taiwan restricts access to EMR for purposes not covered by patients' original consent. This commentary explores possible legal solutions to help ensure that the access TWB has to EMR abides with legal obligations, and with governance frameworks associated with ethical, legal and social implications...
November 15, 2017: GigaScience
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