نتایج جستجو برای: dental papilla

تعداد نتایج: 164670  

2014
Joo-Hee Lee Soyoun Um In-Seok Song Hui Young Kim Byoung Moo Seo

OBJECTIVES The purpose of this study was to investigate the neurogenic differentiation of human dental pulp stem cells (DPSCs), periodontal ligament stem cells (PDLSCs), and stem cells from apical papilla (SCAP). MATERIALS AND METHODS After induction of neurogenic differentiation using commercial differentiation medium, expression levels of neural markers, microtubule-associated protein 2 (MA...

قارزی, احمد,

Formations of feather and hair follicles during embryonic stage are nearly similar. The aim of the present research is to study the similarities and differences between these two follicles in adult pigeons and rats. To fulfill this task, feather and hair follicles were dissected and processed for light and electron microscopy. The results demonstrated that these two follicles were similar in ha...

2014
Fernando Salimon Ribeiro Juliana Aparecida Najarro Dearo de Morais-Camillo José Marcos Alves Fernandes Juliana Rico Pires Elizangela Partata Zuza Ana Emília Farias Pontes

Marginal tissue recession is a common esthetic problem that is usually accompanied by dentin sensitivity, and patients frequently report a fear of dental loss. Lateral sliding flaps have been used for localized recession, but they are rarely used for multiple recessions. The aim of this paper was to report a case of coverage of multiple marginal tissue recessions by means of a lateral sliding f...

2015
Dayashankara Rao Shalender Sharma Varun Arya Ripan Das

Ameloblastic fibroma (AF) is a rare tumour of mixed odontogenic origin that can occur either in mandible or maxilla but is most frequently found in the posterior region of mandible. Age of occurrence is generally between first and second decades of life. It is often mistaken for a dentigerous cyst due to presence of an impacted tooth. The diagnosis of AF usually occurs accidentally by routine r...

Journal: :Journal of embryology and experimental morphology 1986
K Hurmerinta P Kuusela I Thesleff

The cellular source of fibronectin in the dental epitheliomesenchymal interface was studied in interspecies combinations of mouse and quail tissue. Species-specific fibronectin antibodies were produced by immunizing rabbits with purified mouse or chicken fibronectin and by absorbing both antisera with purified heterologous fibronectin and insoluble tissue extract. The absorbed antisera to mouse...

2017
Xiaobing Tan Qingyuan Dai

Induced pluripotent stem cells (iPSCs) technology provides a powerful means to generate and regenerate unlimited pluripotent stem cells directly from body tissue cells. Stem cells from apical papilla (SCAP) and Dental pulp stem cells (DPSCs) are present in 'cell-rich zones' within the dental pulp region, which are capable of regenerating pulp and dentin tissues in vivo. In this study, we invest...

Journal: :Developmental dynamics : an official publication of the American Association of Anatomists 1998
R Hudson A Taniguchi-Sidle K Boras O Wiggan P A Hamel

We have recently demonstrated that the retinoblastoma family of negative cell cycle regulators can form complexes with a class of developmental factors which contain paired-like (PL) homeodomains (Wiggan et al. [1998] Oncogene 16:227-236). Our screens led to the isolation of a novel PL-homeodomain protein which had been isolated independently by another group and called Alx-4 (Qu et al. [1997] ...

2014
John Curtis Seely

Figure Legend: Figure 1 Kidney, Papilla Necrosis in a male F344/N rat from a chronic study. Early necrosis of the papilla shows loss of cellular detail and staining affinity. Figure 2 Kidney, Papilla Necrosis in a male F344/N rat from a subchronic study. A portion of the necrotic renal papilla is sloughed off into the renal pelvis. Figure 3 Kidney, Papilla Necrosis in a female B6C3F1 mouse from...

2012
Ulrich Fricke Werner Geurtsen Ingmar Staufenbiel Alexander Rahman

BACKGROUND Although severe oral opportunistic infections decreased with the implementation of highly active antiretroviral therapy, periodontitis is still a commonly described problem in patients infected with human immunodeficiency virus (HIV). The objective of the present investigation was to determine possible differences in periodontal parameters between antiretroviral treated and untreated...

2015
Yang Liu Jifan Feng Jingyuan Li Hu Zhao

Coordination between the Hertwig’s epithelial root sheath (HERS) and apical papilla (AP) is crucial for proper tooth root development. The hedgehog (Hh) signaling pathway and Nfic are both involved in tooth root development; however, their relationship has yet to be elucidated. Here, we establish a timecourse of mouse molar root development by histological staining of sections, and we demonstra...

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