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Isabella C C von Holstein, Penelope Walton Rogers, Oliver E Craig, Kirsty E H Penkman, Jason Newton, Matthew J Collins
We investigate the origin of archaeological wool textiles preserved by anoxic waterlogging from seven medieval archaeological deposits in north-western Europe (c. 700-1600 AD), using geospatial patterning in carbon (δ13C), nitrogen (δ15N) and non-exchangeable hydrogen (δ2H) composition of modern and ancient sheep proteins. δ13C, δ15N and δ2H values from archaeological wool keratin (n = 83) and bone collagen (n = 59) from four sites were interpreted with reference to the composition of modern sheep wool from the same regions...
2016: PloS One
Bette K Kleinschmidt-DeMasters
PURPOSE OF REVIEW: Most pituitary region masses are pituitary adenomas; however, when other sellar region masses are encountered by clinicians or pathologists, the differential diagnosis can be broad. This review will focus on updates for pituitary adenomas, as well as briefly discuss some of these other entities: Rathke cleft cyst, hypophysitis, craniopharyngioma, pituicytoma, and spindle cell oncocytoma. RECENT FINDINGS: The use of new immunohistochemical (IHC) tools for assessing transcription factors, pituitary transcription factor-1, steroidogenic factor-1, and the not-yet-widely available Tpit IHC have provided insights into origin particularly of clinically silent and even hormone-negative pituitary adenomas...
October 18, 2016: Current Opinion in Endocrinology, Diabetes, and Obesity
Avadhesh Kumar, Shalini Kaushal, Neelu Verma, Deepti Chandra
The treatment of gingival recession defects is indicated for esthetic and functional reasons to reduce root sensitivity, to remove muscle pull, to create or augment keratinized tissue, and to prevent disease progression. The presence of sufficient amount of periosteum adjacent to gingival recession defects makes it a suitable graft. The adult human periosteum is a highly vascular connective tissue with immense regenerative potential. It contains fibroblasts, osteogenic progenitor cells, and stem cells as a result of which it has the ability to differentiate into fibroblast, osteoblast, chondrocytes, adipocytes, and skeletal myocytes...
September 2016: Journal of Oral Biology and Craniofacial Research
Afshin Fathi, Firuz Amani, Mohammad Davoodi, Sara Bahadoram, Mohammad Bahadoram
INTRODUCTION: Nasopharyngeal carcinoma among the children has been rare accounting for only 1% of all pediatric malignancies. Both genetic and environmental factors have contributed to the development of nasopharyngeal carcinoma. Among the children there was a higher rate of undifferentiated histology. The mean age of nasopharyngeal carcinoma diagnosis has been 11 years old age; and the most common site was nasopharynx. Palpable lymphadenopathy, dysphasia and neural defect were common associated signs...
August 2016: Iranian Journal of Cancer Prevention
Émilie Faway, Ludivine Cambier, Bernard Mignon, Yves Poumay, Catherine Lambert de Rouvroit
Dermatophytosis is a superficial fungal infection of keratinized structures that exhibits an increasing prevalence in humans and is thus requesting novel prophylactic strategies and therapies. However, precise mechanisms used by dermatophytes to adhere at the surface of the human epidermis and invade its stratum corneum are still incompletely identified, as well as the responses provided by the underlying living keratinocytes during the infection. We hereby report development of an in vitro model of human dermatophytosis through infection of reconstructed human epidermis (RHE) by arthroconidia of the anthropophilic Trichophyton rubrum species or of the zoophilic Microsporum canis and Arthroderma benhamiae species...
October 19, 2016: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
Sarah F M Pilati, Bianca C Bianco, Daniella S C Vieira, Filipe Modolo
OBJECTIVE: This study aimed to determine the histopathological findings in actinic cheilitis (AC) and lip squamous cell carcinomas (LSCC) diagnosed at Federal University of Santa Catarina in order to attempt to predict the evolution from AC to LSCC based on the comparison of two dysplasia classification systems. METHODS: Histopathological features were evaluated according to the World Health Organization classification of dysplasia and binary system of classification...
October 19, 2016: Oral Diseases
Hannah B Vander Zanden, Alan B Bolten, Anton D Tucker, Kristen M Hart, Margaret M Lamont, Ikuko Fujisaki, Kimberly J Reich, David S Addison, Katherine L Mansfield, Katrina F Phillips, Mariela Pajuelo, Karen A Bjorndal
Assessments of large-scale disasters, such as the Deepwater Horizon oil spill, are problematic because while measurements of post-disturbance conditions are common, measurements of pre-disturbance baselines are only rarely available. Without adequate observations of pre-disaster organismal and environmental conditions, it is impossible to assess the impact of such catastrophes on animal populations and ecological communities. Here, we use long-term biological tissue records to provide pre-disaster data for a vulnerable marine organism...
October 2016: Ecological Applications: a Publication of the Ecological Society of America
Gemma Odena, Jiegen Chen, Juan Jose Lozano, Jose Altamirano, Daniel Rodrigo-Torres, Silvia Affo, Oriol Morales-Ibanez, Hiroshi Matsushita, Jian Zou, Raluca Dumitru, Juan Caballeria, Pere Gines, Vicente Arroyo, Min You, Pierre-Emmanuel Rautou, Dominique Valla, Fulton Crews, Ekihiro Seki, Pau Sancho-Bru, Ramon Bataller
Alcoholic hepatitis (AH) is the most severe form of alcoholic liver disease for which there are no effective therapies. Patients with AH show impaired hepatocyte proliferation, expansion of inefficient ductular cells and high lipopolysaccharide (LPS) levels. It is unknown whether LPS mediates ductular cell expansion. We performed transcriptome studies and identified keratin 23 (KRT23) as a new ductular cell marker. KRT23 expression correlated with mortality and LPS serum levels. LPS-TLR4 pathway role in ductular cell expansion was assessed in human and mouse progenitor cells, liver slices and liver injured TLR4 KO mice...
October 18, 2016: Scientific Reports
Michael Stiller, Rainer Mengel, Sebastian Becher, Bernhard Brinkmann, Barbara Peleska, Esther Kluk
BACKGROUND: This retrospective study evaluated soft-tissue grafting as a surgical treatment option for peri-implantitis in case of unsuitable basic skeletal morphology of the alveolar bone and lack of keratinized mucosa. METHODS: Twenty-eight patients (21 females, 7 males, at a mean age 59.4 years) were included with a total of 54 implants. All implants showed peri-implantitis and attached keratinized buccal mucosa of ≤2 mm. A surgical procedure of soft-tissue grafting (STG) was made by inserting an inlay and inlay-onlay transplant...
December 2015: Int J Implant Dent
Catharina Ladwein, Rainer Schmelzeisen, Katja Nelson, Tabea Viktoria Fluegge, Tobias Fretwurst
BACKGROUND: Long-term data concerning the impact of missing keratinized mucosa (KM) on periimplant tissue health are rare. The importance of KM for implant success remains unclear. METHODS: Two hundred eleven patients with 967 dental implants were analyzed up to 15 years after implant placement. Implants were divided into two groups: no keratinized mucosa (NKM) and KM. Evaluated parameters were plaque index (mAPI), bleeding index (mSBI), bleeding on probing (BOP), probing depth (PD), width of KM, and radiographic vertical bone level...
December 2015: Int J Implant Dent
Taeko Mizutani, Hijiri Sumida, Yuki Sagawa, Yuri Okano, Hitoshi Masaki
BACKGROUND: Carbonylated proteins (CPs) are generated by the reaction of basic amino acid residues in proteins with aldehyde compounds produced during lipid peroxidation. CPs in the stratum corneum (SC) impact skin conditions such as skin moisture functions including water content and transepidermal water loss (TEWL). In addition, CPs can be frequently seen in the SC from sun-exposed sites compared with sun-protected sites. OBJECTIVE: The aim of this study was to reveal whether CPs could be a generation source of reactive oxygen species (ROS) in the SC following exposure to ultraviolet (UV) radiation and to identify the type of ROS and its generation mechanism...
September 28, 2016: Journal of Dermatological Science
Tobias Thalmair, Stefan Fickl, Hannes Wachtel
The aim of this clinical case series was to evaluate the clinical performance of the modified tunnel technique for treatment of multiple gingival recessions in the anterior mandible. A total of 20 patients with 63 Miller Class I and II defects were treated via a modified tunnel technique with subepithelial connective tissue graft. At baseline and 6 months postoperative, recession depth, probing pocket depth, width of keratinized tissue, and gingival tissue thickness were assessed. At 6 months, the results revealed a mean recession coverage of 93...
November 2016: International Journal of Periodontics & Restorative Dentistry
Giacomo Santoro, Giovanni Zucchelli, Enrico Gherlone
The case reports presented in this article describe a surgical approach for improving root coverage and regenerative parameters in deep intrabony defects associated with buccal gingival recession. A mandibular canine and a maxillary premolar were treated. The surgical technique consisted of a connective tissue graft (CTG) that was placed and sutured at the inner surface of a coronally advanced envelope flap (CAF), thickening the buccal soft tissue wall of the most coronal extension of the intrabony defect and treated with biomaterials as scaffold...
November 2016: International Journal of Periodontics & Restorative Dentistry
Evmorfia Fotou, Maria Sakarellos-Daitsiotis, Eleni Ioakeimoglou, Eleni Tziamourani, Ekaterini Malea, George Panayiaris, Eugenia Panou-Pomonis
Among the materials constituting the natural and cultural heritage, organic materials of proteinaceous origin as bone (collagen), parchment and woolen textiles (keratin) are the most susceptible to damage and decay because of their exposure to air pollution, inappropriate values of ambient temperature, humidity and light. Aiming at contributing to the development of a reliable and reproducible immunoassay for the evaluation of collagen and keratin decay, three polypeptide models of these proteins were designed, synthesized and studied...
October 14, 2016: Journal of Peptide Science: An Official Publication of the European Peptide Society
C Maiorana, D Andreoni, P P Poli
Particularly in the premaxillary area, the stability of hard and soft tissues plays a pivotal role in the success of the rehabilitation from both a functional and aesthetic aspect. The present case report describes the clinical management of a localized alveolar ridge atrophy in the area of the upper right canine associated with a thin gingival biotype with a lack of keratinized tissue. An autogenous bone block harvested from the chin associated with heterologous bone particles was used to replace the missing bone, allowing for a prosthetic driven implant placement...
2016: Case Reports in Dentistry
Ramesh Babu Kasetti, Subhash Gaddipati, Shifu Tian, Lei Xue, Winston W-Y Kao, Qingxian Lu, Qiutang Li
Key issues in corneal epithelium biology are the mechanism for corneal epithelium stem cells to maintain the corneal epithelial homeostasis and wound healing responses, and what are the regulatory molecular pathways involved. There are apparent discrepancies about the locations of the progenitor populations responsible for corneal epithelial self-renewal. We have developed a genetic mouse model to trace the corneal epithelial progenitor lineages during adult corneal epithelial homeostasis and wound healing response...
October 13, 2016: Scientific Reports
Ludivine Cambier, Marie-Pierre Heinen, Bernard Mignon
Dermatophytoses are common superficial fungal infections affecting both humans and animals. They are provoked by filamentous fungi called dermatophytes specialized in the degradation of keratinized structures, which allows them to induce skin, hair and nail infections. Despite their high incidence, little investigation has been performed for the understanding of these infections compared to fungal opportunistic infections and most of the studies were based on in vitro experiments. The development of animal models for dermatophyte research is required to evaluate new treatments against dermatophytoses or to increase knowledge about fungal pathogenicity factors or host immune response mechanisms...
October 11, 2016: Mycopathologia
Giovanni Zucchelli, Valentina Bentivogli, Sabrina Ganz, Pietro Bellone, Claudio Mazzotti
The present case report describes the application of the connective tissue graft wall (CTGW) technique for the treatment of deep lingual gingival recessions associated with probing pockets and bone loss. Two deep lingual gingival recessions affecting the mandibular central incisors associated with severe lingual attachment and bone loss were treated. The surgical technique comprised a connective tissue graft (CTG) placed below a trapezoidal-type coronally advanced flap (CAF) acting as a lingual soft tissue wall of the infrabony defect...
2016: International Journal of Esthetic Dentistry
Magda Mensi, Eleonora Scotti, Stefano Salgarello, Antonio Cerutti
The aim of this case report was to treat eight simultaneous recessions that caused an unesthetic smile in a 27-year-old orthodontically treated female patient and to restore the anterior maxillary teeth in the esthetic area. The treatment consisted of bilaminar mucogingival surgery with a palatine graft and a collagen matrix graft (Mucograft, Geistlich). At 24 months, complete root coverage was achieved in all treated sites, with an increase of keratinized tissue (KT), complete resolution of hypersensitivity, and a high level of esthetic satisfaction...
2016: International Journal of Esthetic Dentistry
Nozomu Tanabe, Takahiro Tomita, Shoichi Nagai, Naoya Kuwayama, Kyo Noguchi, Satoshi Kuroda
The authors report a rare case of an intracranial dermoid cyst found in Meckel's cave. A 63-year-old woman developed left oculomotor nerve palsy and was referred to their hospital. Magnetic resonance imaging revealed a cystic lesion in the left Meckel's cave and prepontine cistern, but her symptoms gradually improved during conservative observation. However, three years later she complained of left facial pain in the territory of the second branch of the trigeminal nerve. The left oculomotor nerve palsy exacerbated again...
October 2016: No Shinkei Geka. Neurological Surgery
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