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https://www.readbyqxmd.com/read/29458214/effect-of-tetrahedral-dna-nanostructures-on-proliferation-and-osteo-odontogenic-differentiation-of-dental-pulp-stem-cells-via-activation-of-the-notch-signaling-pathway
#1
Mi Zhou, Nan-Xin Liu, Si-Rong Shi, Yong Li, Qi Zhang, Quan-Quan Ma, Tao-Ran Tian, Wen-Juan Ma, Xiao-Xiao Cai, Yun-Feng Lin
Dental pulp stem cells (DPSCs) derived from the human dental pulp tissue have multiple differentiation capabilities, such as osteo/odontogenic differentiation. Therefore, DPSCs are deemed as ideal stem cell sources for tissue regeneration. As new nanomaterials based on DNA, tetrahedral DNA nanostructures (TDNs) have tremendous potential for biomedical applications. Here, the authors aimed to explore the part played by TDNs in proliferation and osteo/odontogenic differentiation of DPSCs, and attempted to investigate if these cellular responses could be driven by activating the canonical Notch signaling pathway...
February 16, 2018: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/29457254/primordial-odontogenic-tumour-report-of-two-cases
#2
Asma Almazyad, Chia-Cheng Li, Roberto Onner Cruz Tapia, Javier Portilla Robertson, David Collette, Sook-Bin Woo
Primordial odontogenic tumour (POT) is a rare mixed odontogenic neoplasm that is composed of primitive ecto-mesenchyme resembling dental papilla, surfaced by odontogenic epithelium resembling inner enamel epithelium, without hard tissue formation. Most reported cases have presented in the posterior mandible as a well-demarcated radiolucency associated with an unerupted tooth in the first two decades of life. AIM: To describe the clinico-pathological features of two more cases of POT. METHODS AND RESULTS: Each presented as an asymptomatic well-delineated radiolucency in the mandible in a 15-year-old female and an 18-year-old male respectively...
February 19, 2018: Histopathology
https://www.readbyqxmd.com/read/29456938/deep-neck-space-infections-a-study-in-diabetic-population-in-a-tertiary-care-centre
#3
Kalpana Sharma, Devjani Das, Manish Joshi, Dipjyoti Barman, A J Sarma
This study is intended to analyze the clinical profile and outcomes of deep neck space infection in diabetic patients in our tertiary care centre. A prospective study of 1 year duration from 30th September 2015 to 30th September 2016 at department of Otorhinolaryngology, Gauhati Medical College and Hospital, Guwahati. A total of 45 diabetic patients who presented with DNSI are included in this study. Their demographic profile, etiology, bacteriology, treatment, duration of hospital stay, complications and outcomes have been analyzed...
March 2018: Indian Journal of Otolaryngology and Head and Neck Surgery
https://www.readbyqxmd.com/read/29456309/idiopathic-peripheral-ossifying-fibroma-in-a-young-adolescent-girl-a-very-rare-clinical-presentation
#4
Shaik Hasanuddin, Yempati Malleshwar
The use of the term "fibroma" for any soft-tissue lesion or gingival lesion by general practitioners has led to inadequate diagnosis of quite a few rare entities. The occurrence of gingival lesions in adolescent female patients is a routine clinical finding. The site of occurrence of such a lesion is of prime significance, as the rarity of these lesions is determined by the site and size of the lesion. On the other hand, the dilemma over the diagnosis of peripheral ossifying fibroma (POF) versus peripheral odontogenic fibroma still continues...
July 2017: Journal of Indian Society of Periodontology
https://www.readbyqxmd.com/read/29454489/basal-cell-nevus-syndrome-gorlin-syndrome-genetic-insights-diagnostic-challenges-and-unmet-milestones
#5
Maryam Akbari, Harold Chen, Grace Guo, Zachary Legan, Ghali Ghali
In this article, we present three clinical case reports on Basal Cell Nevus Syndrome (Gorlin Syndrome). Gorlin syndrome is an inherited medical condition with challenges that manifest in multiple body systems and complicate early diagnosis. We examine the epidemiology of the disease and benefits of genetic testing, molecular pathophysiology, and advancement in the molecular-based therapy of Basal Cell Nevus syndrome. The goal of this paper is to shed light on both unmet challenges and advancements in the management of Gorlin syndrome and to provide a new clinical perspective and guidance for future research...
January 31, 2018: Pathophysiology: the Official Journal of the International Society for Pathophysiology
https://www.readbyqxmd.com/read/29449727/adenoid-ameloblastoma-with-dentinoid-and-cellular-atypia-a-case-report-and-literature-review
#6
B Ae O Khalele
Adenomatoid odontogenic tumor (AOT) is always benign. Given the very rare recurrence rate and the zero potential of malignant transformation, authors have considered it a hamartoma. Accordingly, 'AOT' is no more than a misnomer. This report, however, describes the first recognition of cellular atypia and plemorphism in a peripheral orophayrngeal AOT which embraces an ameloblastic component. The overall picture was diagnosed, after careful histological and immunohitochemical assessment, as a peripheral adenoid ameloblastoma...
December 2017: Pathologica
https://www.readbyqxmd.com/read/29448842/knockdown-of-nrage-induces-odontogenic-differentiation-by-activating-nf-%C3%AE%C2%BAb-signaling-in-mouse-odontoblast-like-cells
#7
Qi Wu, Jing Li, Pingping Song, Jing Chen, Yuanzhi Xu, Shengcai Qi, Ji Ma, Qiuhui Pan
PURPOSE: Neurotrophin receptor-interacting MAGE homologue (Nrage) plays an important role in bone development and the metabolism of normal skeletal structures. Our previous study showed that Nrage inhibited the odontogenic differentiation of mouse dental pulp cells. However, the potential roles and mechanism of Nrage in regulating odontogenic differentiation are unknown. The aim of this study was to investigate the molecular mechanism of Nrage in odontogenic differentiation of mouse odontoblast-like cells...
February 15, 2018: Connective Tissue Research
https://www.readbyqxmd.com/read/29446581/odontogenic-focal-infection-is-a-possible-trigger-of-severe-henoch-sch%C3%A3-nlein-purpura-nephritis
#8
Jakub Zieg, Sarka Stolbova, Veronika Kroulikova, Jaromir Hacek
No abstract text is available yet for this article.
April 2018: Minerva Pediatrica
https://www.readbyqxmd.com/read/29443742/ghost-cell-odontogenic-carcinoma-with-suspected-cholesterol-granuloma-of-the-maxillary-sinus-in-a-patient-treated-with-combined-modality-therapy-a-case-report-and-the-review-of-literature
#9
You Qin, Yanwei Lu, Liduan Zheng, Hong Liu
RATIONALE: Ghost cell odontogenic carcinoma (GCOC) is a rare malignant odontogenic tumor with aggressive growth characteristics. PATIENT CONCERNS: A 41-year-old Chinese male visited our hospital in 2013, with a 4-month history of bloody purulent rhinorrhea with a peculiar smell in the right nasal cavity. DIAGNOSES: The patient suffered from recurrent GCOC with suspected cholesterol granuloma of the maxillary sinus. The patient was incorrectly diagnosed with a calcifying epithelial odontogenic tumor at his first recurrence...
February 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29442096/oral-and-masticatory-rehabilitation-using-osseointegrated-dental-implants-after-resective-treatment-of-multicystic-ameloblastoma-in-the-lower-jaw-with-a-fibula-graft
#10
João Ricardo Almeida Grossi, Tatiana Miranda Deliberador, Tielly Saad, Rafaela Scariot, Joao Cesar Zielak, Allan Fernando Giovanini
Ameloblastoma is an aggressive odontogenic tumor which typically occurs between third and fourth decade of life that often needs resective approach. Immediate reconstruction may show better results. The treatment of multicystic ameloblastoma in the mandible being a rare case that occurred in the late second decade of life, which was surgically removed along with the affected teeth with safety margins, and the region was immediately reconstructed using a vascularized graft, removed from the fibula. Its integration, in combination with osseointegrated dental implants and fixed implant-supported prostheses, restored chewing function and esthetics...
January 2018: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/29441249/surgical-access-to-a-complex-composite-odontoma-via-sagittal-split-osteotomy-of-the-mandible
#11
Pradeep J Christopher, Senthilnathan Periasamy, Poorna Devadoss, Santhosh P Kumar
This case report presents the removal of complex composite odontoma in a young patient in the right body of mandible via the unilateral sagittal splitting of the mandible. This article shows that sagittal split osteotomy of the mandible can be very useful to access various pathologies in the body, angle, and ramus of the mandible and to navigate lesions that are in proximity to the inferior alveolar nerve. This technique also helps in avoiding postoperative morbidity when compared to other conventional surgical approaches...
December 6, 2017: Curēus
https://www.readbyqxmd.com/read/29436669/effect-of-recombinant-vascular-endothelial-growth-factor-and-translationally-controlled-tumor-protein-on-2%C3%A2-hydroxyethyl-methacrylate%C3%A2-treated-pulp-cells
#12
Chunyanut Wongkhum, Wilaiwan Chotigeat, Ureporn Kedjarune-Leggat
Vascular endothelial growth factor (VEGF)-A is a potential signaling protein that may promote angiogenesis. VEGF also helps cells survive in stressfull or hazardous conditions. The present study aimed to compare the effect of VEGF with translationally controlled tumor protein (TCTP), an anti‑apoptotic protein in human dental pulp cells (HDPCs), following exposure to 2‑hydroxyethyl methacrylate (HEMA), which is a major residual monomer from resin restorative dental materials. Cell viability, alkaline phosphatase (ALP) activity, mineralization and gene expressions for odontogenic and osteogenic differentiation markers of HDPCs were investigated, following exposure to HEMA and in combination with TCTP and VEGF...
February 12, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29426795/cholesterol-granuloma-of-the-maxilla
#13
N Baldini, A Pare, S Badja, A Veyssiere, J D Kün-Darbois
Intra-osseous cholesterol granuloma (CG) is a rare and benign lesion. Very few cases of CG of the jaws have been described in the literature. CG of the jaws seems to be due to the accumulation of cholesterol of hematogenous origin in odontogenic cysts. We report on one case of CG of the maxilla treated by surgical enucleation in a 46-year-old man who presented an asymptomatic swelling of the maxilla.
February 6, 2018: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/29415809/expression-profile-of-polycomb-group-proteins-in-odontogenic-keratocyst-and-ameloblastoma
#14
Puangwan Lapthanasupkul, Rachai Juengsomjit, Sopee Poomsawat, Tawepong Arayapisit
Polycomb group (PcG) proteins are repressive chromatin modifiers required for proliferation and development. PcG proteins form two large repressive complexes, namely, Polycomb Repressive Complex 1 and 2. These proteins have been shown to drive tumorigenesis by repressing cell-type specific sets of target genes. Using immunohistochemistry, we investigated the expression patterns of five human PcG proteins, including Bmi-1, Ring1b, Mel-18, Ezh2, and Suz12, in various cellular components of odontogenic keratocysts (OKCs), ameloblastomas and, pericoronal follicles (PFs)...
February 4, 2018: Acta Histochemica
https://www.readbyqxmd.com/read/29414392/spatial-distribution-of-osteopontin-cd44v6-and-podoplanin-in-the-lining-epithelium-of-odontogenic-keratocyst-and-their-biological-relevance
#15
Khamisah Awang Kechik, Chong Huat Siar
BACKGROUND AND AIMS: The odontogenic keratocyst (OKC) remains the most challenging jaw cyst to treat because of its locally-aggressive behaviour and high recurrence potential. Emerging evidence suggests that osteopontin, its receptors CD44v6 and integrin αv, and podoplanin, have a role in the local invasiveness of this cyst. However the spatial distribution characteristics of these pro-invasive markers in the lining epithelium of OKC, and their association with the clinicopathologic parameters of OKC are largely unexplored...
February 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29399866/tooth-germ-initiation-patterns-in-a-developing-dentition-an-in-vivo-study-of-xenopus-laevis-tadpoles
#16
Denis O Lamoureux, Aaron R H LeBlanc, Michael W Caldwell
The transparency of soft tissue in Xenopus laevis tadpoles and the anterior-posterior orientation of their developing tooth germs in the upper jaw offer a unique opportunity for the in vivo charting of the first 15-20 days of the developing dentition. Twenty-two X. laevis tadpoles were anesthetized daily and their mouths opened to record the first appearance, position, and development of tooth germs in the upper jaw. The initiation patterns revealed considerable variability between animals, and even between the jaw quadrants in the same animal...
February 5, 2018: Journal of Morphology
https://www.readbyqxmd.com/read/29398760/primordial-odontogenic-tumor-of-mandible-a-case-with-proposed-diagnostic-criteria
#17
Nilesh Pardhe, Manas Bajpai
No abstract text is available yet for this article.
January 2018: Iranian Journal of Medical Sciences
https://www.readbyqxmd.com/read/29397219/leptin-induces-odontogenic-differentiation-and-angiogenesis-in-human-dental-pulp-cells-via-activation-of-the-mitogen-activated-protein-kinase-signaling-pathway
#18
Viet Anh Ngo, Ji-Yeon Jung, Jeong-Tae Koh, Won-Mann Oh, Yun-Chan Hwang, Bin-Na Lee
INTRODUCTION: Up-regulation of odontogenic differentiation, dentin formation, and angiogenesis in dental pulp are key factors in vital pulp therapy. The aim of this study was to investigate whether leptin could promote odontogenic differentiation and angiogenesis in human dental pulp cells (hDPCs). In addition, the involvement of the intracellular signaling pathway in these effects was determined. METHODS: The viability of hDPCs treated with leptin was examined using the water soluble tetrazolium salt-1 assay...
January 31, 2018: Journal of Endodontics
https://www.readbyqxmd.com/read/29396318/treatment-of-enucleated-odontogenic-jaw-cysts-a-systematic-review
#19
REVIEW
Mayte Buchbender, Friedrich W Neukam, Rainer Lutz, Christian M Schmitt
OBJECTIVES: In this systematic review, we aimed to assess the impact of filling or not filling enucleated odontogenic jaw cysts on bony defect consolidation. In terms of filling, we aimed to assess which is the best filling material based on current evidence. STUDY DESIGN: An electronic search was performed using PubMed, Embase, and MEDLINE databases with the logical operators: "odontogenic cysts" AND "jaw cysts" AND "treatment AND therapy." RESULTS: Thirteen studies with primary enucleation (6 with filling and 7 without filling) were included...
December 29, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/29391734/quantitative-assessment-of-silver-stained-nucleolar-organizer-region-in-odontogenic-cysts-to-correlate-the-growth-and-malignant-potentiality
#20
Sailendra Nath Biswas, R R Paul, Jay Gopal Ray, Sumit Majumdar, Divya Uppala
Context: The most common and important odontogenic cyst involving jaws is the odontogenic keratocyst (OKC) or primordial cyst, the dentigerous cyst and the radicular cyst. These cysts all though do not show similar behavior, they all have the potentiality to recur. Silver nitrate staining of the nucleolar organizer regions (AgNORs) of the benign and malignant lesions is becoming very useful as a diagnostic indicator. Thus, the aim of this study is to assess the diagnostic potential of AgNORs in the cystic epithelium of common odontogenic cysts...
September 2017: Journal of Oral and Maxillofacial Pathology: JOMFP
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