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Archives of Oral Biology

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https://www.readbyqxmd.com/read/28641180/potential-chemotherapeutic-effects-of-diosgenin-zoledronic-acid-and-epigallocatechin-3-gallate-on-pe-ca-pj15-oral-squamous-cancer-cell-line
#1
Eduardo Pons-Fuster López, Qin-Tong Wang, Wei Wei, Pia López Jornet
OBJECTIVE: To study the potential chemotherapeutic effects of Diosgenin, zoledronic acid and Epigallocatechin-3-gallate on oral squamous cell cancer (OSCC). MATERIALS AND METHODS: Cell viability, migration, apoptosis and cell cycle evaluation assays were performed in order to assess the effects of different doses of Diosgenin, zoledronic acid and Epigallocatechin-3-gallate on the PE/CA-PJ15 cell line. RESULTS: Doses of 100μM of diosgenin or zoledronic acid reduced cell viability significantly after 72h (p<0...
June 19, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28645102/expression-of-p63-and-cd44-in-oral-squamous-cell-carcinoma-and-correlation-with-clinicopathological-parameters
#2
Nasrollah Saghravanian, Kazem Anvari, Narges Ghazi, Bahram Memar, Maryam Shahsavari, Monavar Afzal Aghaee
Squamous cell carcinoma (SCC) is the sixth most frequent malignant tumor of the head and neck region. Despite advances in therapeutic options over the last decades, the rate of mortality and morbidity has not been improved markedly. A small subset of cells, cancer stem cells (CSCs), with self-renewal properties have become a major focus of current cancer research. CD44 and p63 are identified as candidate stem cell markers in normal squamous epithelium and SCC. The role of these markers in oral squamous cell carcinoma (OSCC) is still debatable...
June 15, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28645100/interferential-effect-of-the-over-erupted-third-molar-on-chewing-movement
#3
Shaoxiong Guo, Baoyong Li, Kun Qi, Mian Zhang, Han Zhang, Donghui Guo, Xiaodong Liu, Meiqing Wang
OBJECTIVE: To clarify whether over-eruption of the mandibular third molar can disturb chewing movement. METHODS: Eighteen patients with a unilateral mandibular over-erupted third molar confirmed by both study cast observation and T-scan occlusal detection were selected from a sample of patients with complaints of temporomandibular disorder (TMD) symptoms. A unilateral gum-chewing trace was recorded separately for left and right side chewing by an electrognathography system...
June 15, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28641179/quantitative-study-of-the-proportion-of-the-pore-volume-of-human-fluorotic-enamel-filled-by-resin-infiltrant
#4
Frederico Barbosa de Sousa, Isabel Maria Porto Lelis, Regina Célia Bressan Queiroz Figueiredo, Andressa Cavalcanti Pires, Raquel Fernanda Gerlach
AIM: Capillarity theory predicts that the pore volume infiltrated by a liquid in a body with tubular capillaries is directly proportional to the capillary radius. The expected volume available for infiltration is the loosely bound water volume, which can be related to the capillary radii. We tested the hypothesis that the proportion of the pore volume infiltrated by resin infiltrant (Vratio(resin)) is correlated and agrees with the proportion of the pore volume with loosely bound water ( [Formula: see text] )...
June 15, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28641178/stimulatory-effect-of-aggregatibacter-actinomycetemcomitans-dna-on-proinflammatory-cytokine-expression-by-human-gingival-fibroblasts
#5
Uriel Soto-Barreras, Gabriela Cortés-Sandoval, Ruben Dominguez-Perez, Alejandra Loyola-Leyva, Panfilo-Raymundo Martinez-Rodriguez, Juan Pablo Loyola-Rodriguez
OBJECTIVE: While different virulence factors have been reported of Aggregatibacter actinomycetemcomitans (Aa), there is little information about the stimulatory effect of its DNA. The main purpose of this study was to assess the inflammatory response of human gingival fibroblasts (HGFs) stimulated with A. actinomycetemcomitans DNA. DESIGN: Cytokine levels of IL-6, IL-1α and TNF-α were measured on the supernatant of HGFs activated with 10, 25, 50 and 100μg/ml DNA of Aa during 24h...
June 15, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28645101/co-localization-of-endogenous-arf6-and-its-activator-efa6d-in-the-granular-convoluted-tubule-cells-of-mouse-submandibular-glands-under-normal-conditions-and-when-stimulated-by-isoproterenol-noradrenaline-and-carbachol
#6
Apussara Tachow, Wipawee Thoungseabyoun, Laorrat Phuapittayalert, Kanoktip Petcharat, Hiroyuki Sakagami, Hisatake Kondo, Wiphawi Hipkaeo
OBJECTIVE: This study proposed to investigate the localization at light and electron microscopic levels of Arf6 and its activator EFA6D in the mouse submandibular gland (SMG) under normal conditions and when stimulated by adrenergic or cholinergic agonists. MATERIALS AND METHODS: SMGs of male adult mice were utilized for immunoblotting and immuno-light and -electron microscopic analyses. Isoproterenol and noradrenalin were used as adrenergics, while carbachol was used for the cholinergic stimulant...
June 13, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28628803/mucoepidermoid-carcinoma-associated-expression-of-muc5ac-muc5b-and-mucin-type-carbohydrate-antigen-sialyl-tn-in-the-parotid-gland
#7
Johannes H Matse, Wiresh K Bharos, Enno C I Veerman, Elisabeth Bloemena, Jan G M Bolscher
OBJECTIVES: The aberrant expression of mucins and mucin-type carbohydrates has been described in many types of cancer, including mucoepidermoid carcinoma (MEC), a malignant salivary gland tumor. In this study, we examined the aberrant expression patterns of mucins (MUC1, MUC4, MUC5AC and MUC5B), simple mucin-type carbohydrate antigens (Tn, sialyl-Tn and T) and mature carbohydrate antigens (Lewis(a) and sulfo-Lewis(a) antigens) in MEC originating from the parotid gland, which normally does not secrete mucins...
June 13, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28646693/antibacterial-effect-of-genetically-engineered-bacteriophage-%C3%AF-ef11-%C3%AF-fl1c-%C3%AE-36-p-nisa-on-dentin-infected-with-antibiotic-resistant-enterococcus-faecalis
#8
Justine Monnerat Tinoco, Nadia Liss, Hongming Zhang, Roni Nissan, Wanda Gordon, Eduardo Tinoco, Luciana Sassone, Roy Stevens
OBJECTIVE: Enterococcus faecalis is a gram-positive facultative anaerobic bacterium, which is present in 30-89% of teeth with postendodontic treatment failures. E. faecalis is capable of penetrating dentinal tubules and surviving as a monoculture after conventional endodontic therapy, indicating that it is resistant to commonly used endodontic disinfection protocols. Different E. faecalis strains have shown resistance to several antibiotics, and have been associated with both dental pathology and systemic infections...
June 12, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28628802/metabolic-control-and-periodontal-treatment-decreases-elevated-oxidative-stress-in-the-early-phases-of-type-1-diabetes-onset
#9
Cüneyt A Aral, Özlem Nalbantoğlu, Bilge G Nur, Mustafa Altunsoy, Kübra Aral
OBJECTIVE: Recently, increasing concern has been focused on the contribution of oxidative stress in the pathology of periodontal disease and diabetes mellitus. Firstly, the present study aimed to analyze gingival crevicular fluid (GCF), salivary, and serum oxidative status in children with type 1 diabetes mellitus (T1DM) at diagnosis and systemically healthy children with and without gingivitis. Additionally, the diabetic patients were reevaluated after diabetes and periodontal treatment...
June 12, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28623687/microcalcifications-in-stone-obstructed-human-submandibular-gland-are-associated-with-apoptosis-and-cell-proliferation
#10
Ivan Lau, Ajay Potluri, Cliff-Lawrence Ibeh, Robert S Redman, Edina Paal, Bidhan C Bandyopadhyay
OBJECTIVE: Human submandibular gland (SMG) stones are associated with inflammation, fibrosis and microcalcifications in the surrounding tissues. However, there is little information about the accompanying cell injury-repair process, apoptosis, and cell proliferation. The purpose of this study was to investigate such an association and its clinical significance. DESIGN OF STUDY: Mid-gland paraffin sections of human SMGs ("stone glands") and normal SMGs ("non-stone glands") were subjected to stains for general histology (hematoxylin and eosin), fibrosis (Masson's trichrome), and calcification (alizarin red) and to immunohistochemistry for proliferative activity (Ki-67), and apoptosis (Caspase-3)...
June 7, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28624699/toll-like-receptor-2-rs4696480-polymorphism-and-risk-of-oral-cancer-and-oral-potentially-malignant-disorder
#11
Camila de Barros Gallo, Xabier Marichalar-Mendia, Amaia Setien-Olarra, Amelia Acha-Sagredo, Naiara Garcia Bediaga, Maria Luisa Gainza-Cirauqui, Norberto Nobuo Sugaya, Jose Manuel Aguirre-Urizar
OBJECTIVES: The aim of this study was to identify the possible association between TLR polymorphisms and an increased risk of developing head and neck cancer, including oral (OSCC) and laryngeal squamous cell carcinoma (LSCC), and oral potentially malignant disorders, such as oral lichenoid disease (OLD), including oral lichen planus (OLP) and oral lichenoid lesions (OLL). DESIGN: This case-control study included 40 OSCC, 35 LSCC, 175 OLD (129 OLP and 46 OLL) patients and 89 healthy controls, all of them from the Basque Country, Spain...
June 6, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28622548/early-bony-changes-associated-with-bisphosphonate-related-osteonecrosis-of-the-jaws-in-rats-a-longitudinal-in-vivo-study
#12
Josy Lorena Peres Vilarinho, Nathália Ferrare, Andreia Maria Rocha Moreira, Helora Freitas Moura, Ana Carolina Acevedo, Sacha Braun Chaves, Nilce Santos Melo, André Ferreira Leite, Sérgio Bruzadelli Macedo, Melissa Paoletti de Souza, Ana Tereza Bittencourt Guimarães, Paulo Tadeu Figueiredo
OBJECTIVE: To evaluate early bony changes in an animal model of Medication-Related Osteonecrosis of the Jaw (MRONJ) at the side of the local trauma and at the contralateral side, comparing with a control group. Bony changes were evaluated by Microcomputed Tomography (MicroCT) at three times points: at baseline (T0), after drug administration (T1) and after dental extraction (T2). DESIGN: Two groups were compared: the experimental group in which zoledronic acid (ZA) was administered (17 rats) and the control group (13 rats)...
June 6, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28618344/developmental-mechanism-of-muscle-tendon-bone-complex-in-the-fetal-soft-palate
#13
Michiyuki Nara, Kei Kitamura, Masahito Yamamoto, Ryotaro Nagakura, Keisuke Mitomo, Satoru Matsunaga, Shinichi Abe
OBJECTIVE: This study was performed to investigate how the palatine aponeurosis, medial pterygoid process (MPP) of the sphenoid bone, and tensor veli palatini (TVP) muscle form the pulley: muscle-tendon-bone complex. DESIGN: Mice at embryonic day (ED) 14-17 were used as sample in this study. Azan staining was performed to observe the morphology, and immunohistochemical staining of desmin was performed to closely observe the development of the myotendinous junction...
June 6, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28622550/effect-of-gels-containing-chlorhexidine-or-epigallocatechin-3-gallate-on-the-protein-composition-of-the-acquired-enamel-pellicle
#14
Cíntia Maria de Souza-E-Silva, Talita Mendes da Silva Ventura, Luiza de Pau, la Silva Cassiano, Aline de Lima Leite, Marília Afonso Rabelo Buzalaf
OBJECTIVE: This study evaluated changes in protein profile of the acquired enamel pellicle (AEP) formed in vivo, after application of gels containing chlorhexidine or EGCG and further challenge with citric acid. DESIGN: AEP was formed in 9 volunteers for 2h and then treated with one of the following gels: placebo, 400μM EGCG or 0.012% chlorhexidine. A thin layer of gel was applied and after 1min the excess was removed. One hour after gel application, the AEP was collected from the buccal surface (upper and lower jaw) of one of the sides with filter paper dipped in 3% citric acid...
June 3, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28622549/immunological-and-epidemiological-factors-affecting-candidiasis-in-hiv-patients-beginning-antiretroviral-therapy-in-an-asian-clinic
#15
Endah A T Wulandari, Henny Saraswati, Robiatul Adawiyah, Samsuridjal Djauzi, Retno Wahyuningsih, Patricia Price
OBJECTIVES: Oropharyngeal candidiasis (OPC) is common in HIV patients beginning antiretroviral therapy (ART). Here we address the response to ART, and the roles of poor oral hygiene and defects in local innate immunity with a focus on salivary β-defensins, as they are implicated in control of candidiasis but have not been investigated in this context. DESIGN: ART naïve HIV-infected adults (n=82) with <200 CD4(+) T-cells/mm(3) attending clinics at Cipto Mangunkusumo Hospital, Jakarta, were examined at the commencement of ART, and 73 were re-examined after 3 months...
June 3, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28601733/effect-of-1-2-of-simvastatin-gel-as-a-local-drug-delivery-system-on-gingival-crevicular-fluid-interleukin-6-interleukin-8-levels-in-non-surgical-treatment-of-chronic-periodontitis-patients
#16
Gayathri Gunjiganur Vemanaradhya, Shilpa Emani, Dhoom Singh Mehta, Shilpy Bhandari
AIM: The present study was carried out to evaluate the effect of 1.2% simvastatin gel as local drug delivery (LDD) system on Gingival Crevicular Fluid (GCF) Interleukin -6 (IL-6) and Interleukin-8 (IL-8) levels in chronic periodontitis patients, in addition to scaling and root planing (SRP). METHODS: A total of 46 chronic periodontitis patients were equally divided into two groups. Group I patients were treated by SRP; Group II patients were treated by SRP followed by LDD of 1...
June 3, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28601732/intermittent-compressive-stress-regulates-notch-target-gene-expression-via-transforming-growth-factor-%C3%AE-signaling-in-murine-pre-osteoblast-cell-line
#17
Jeeranan Manokawinchoke, Prasit Pavasant, Thanaphum Osathanon
OBJECTIVE: Different mechanical stimuli regulate behaviors of various cell types, including osteoblasts, osteocytes, and periodontal ligament fibroblasts. Notch signaling participates in the mechanical stress-regulated cell responses. The present study investigated the regulation of Notch target gene and sclerostin (Sost) expression in murine pre-osteoblast cell line (MC3T3-E1) under intermittent compressive stress. METHODS: MC3T3-E1 were subjected to the intermittent compressive force under the computerized controlled machine...
June 1, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28600966/inflammatory-cytokines-in-normal-and-irreversibly-inflamed-pulps-a-systematic-review
#18
REVIEW
Vivian Hirsch, Michael Wolgin, Aleksandr V Mitronin, Andrej M Kielbassa
OBJECTIVE: To review the available literature in regard to the inflammatory process and pulpitis. Setting forth to evaluate if differences in the levels of various cytokines (TNF-α, IL-1β, IL-2, IL-6 and IL-8) can be observed in clinically diagnosed normal and irreversibly inflamed pulps that could serve as possible markers and/or diagnostic tools to predict and differentiate between certain states of inflammation. Methods used to measure and assess levels of cytokines have been limited to two protein quantification methods ELISA and/or Multiplex Array...
June 1, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28595095/differential-expression-between-dsp-only-and-dsp-pp523-transcripts-in-rat-molar-teeth
#19
Ya-Qin Zhu, Ryan M Song, Helena H Ritchie
OBJECTIVE: To compare the expression patterns of two multiple transcripts derived from DSP-PP gene during tooth development. One is DSP-only transcript (i.e. does not encode PP) and the other is DSP-PP523 transcript, a main DSP-PP transcript. DESIGN: Unique antisense and sense riboprobes were generated from DSP-only and DSPPP523 cDNAs for in situ studies to examine DSP-only and DSP-PP523 transcript expression in developing molars. Paraffin-embedded sections (5-7μ m) from embryonic 20day, postnatal 2, 3 and 6days were deparaffined and hydrated...
May 31, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28591659/decreased-levels-of-matrix-metalloproteinase-2-in-root-canal-exudates-during-root-canal-treatment
#20
Kassara Pattamapun, Sira Handagoon, Thanapat Sastraruji, James L Gutmann, Prasit Pavasant, Suttichai Krisanaprakornkit
OBJECTIVE: To determine the matrix metalloproteinase-2 (MMP-2) levels in root-canal exudates from teeth undergoing root-canal treatment. MATERIAL AND METHODS: The root-canal exudates from six teeth with normal pulp and periradicular tissues that required intentional root canal treatment for prosthodontic reasons and from twelve teeth with pulp necrosis and asymptomatic apical periodontitis (AAP) were sampled with paper points for bacterial culture and aspirated for the detection of proMMP-2 and active MMP-2 by gelatin zymography and the quantification of MMP-2 levels by ELISA...
May 31, 2017: Archives of Oral Biology
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