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https://www.readbyqxmd.com/read/28424891/a-phase-i-dose-escalation-study-of-selumetinib-in-combination-with-erlotinib-or-temsirolimus-in-patients-with-advanced-solid-tumors
#1
Jeffrey R Infante, Roger B Cohen, Kevin B Kim, Howard A Burris, Gregory Curt, Ugochi Emeribe, Delyth Clemett, Helen K Tomkinson, Patricia M LoRusso
Background Combinations of molecularly targeted agents may provide optimal anti-tumor activity and improve clinical outcomes for patients with advanced cancers. Selumetinib (AZD6244, ARRY-142886) is an oral, potent and highly selective, allosteric inhibitor of MEK1/2, a component of the RAS/RAF/MEK/ERK pathway which is constitutively activated in many cancers. We investigated the safety, tolerability, and pharmacokinetics (PK) of selumetinib in combination with molecularly targeted drugs erlotinib or temsirolimus in patients with advanced solid tumors...
April 19, 2017: Investigational New Drugs
https://www.readbyqxmd.com/read/28419912/the-mucosal-pellicle-an-underestimated-factor-in-oral-physiology
#2
REVIEW
Christian Hannig, Matthias Hannig, Anna Kensche, Guy Carpenter
Bioadhesion and bio-adsorption of proteins, glycoproteins and other biomolecules are ubiquitous phenomena in the oral cavity. While the protective role of the adsorbed salivary biomolecules on teeth (the acquired enamel pellicle) is well established, it has yet to be defined whether comparable processes occur on the desquamating oral soft tissues. The general term for these layers is pellicle, but due to the different characteristics of the coated surfaces the enamel pellicle and mucosal pellicle are their own entities...
April 8, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28419665/lettuce-produced-hepatitis-c-virus-e1e2-heterodimer-triggers-immune-responses-in-mice-and-antibody-production-after-oral-vaccination
#3
Jihong Liu Clarke, Lisa Paruch, Mihaela-Olivia Dobrica, Iuliana Caras, Catalin Tucureanu, Adrian Onu, Sonya Ciulean, Crina Stavaru, Andre Eerde, Yanliang Wang, Hege Steen, Sissel Haugslien, Catalina Petrareanu, Catalin Lazar, Ioan Popescu, Ralph Bock, Jean Dubuisson, Norica Branza-Nichita
The hepatitis C virus (HCV) is a major etiologic agent for severe liver diseases (e.g., cirrhosis, fibrosis and hepatocellular carcinoma). Approximately 140 million people have chronic HCV infections and about 500,000 die yearly from HCV-related liver pathologies. To date, there is no licenced vaccine available to prevent HCV infection and production of an HCV vaccine remains a major challenge. Here we report the successful production of the HCV E1E2 heterodimer, an important vaccine candidate, in an edible crop (lettuce, Lactuca sativa) using Agrobacterium-mediated transient expression technology...
April 17, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28418875/incidence-and-clearance-of-oral-human-papillomavirus-infection-a-population-based-cohort-study-in-rural-china
#4
Chaoting Zhang, Fangfang Liu, Yaqi Pan, Qiuju Deng, Xiang Li, Zhonghu He, Mengfei Liu, Tao Ning, Chuanhai Guo, Yongmei Liang, Ruiping Xu, Lixin Zhang, Hong Cai, Yang Ke
The natural history of oral human papillomavirus (HPV) infection which is linked with the increased incidence of oropharyngeal squamous cell cancer (OPSCC) has been incompletely studied. Oral swab specimens and questionnaire data were obtained bi-annually for up to 6 visits from 4314 healthy adults aged 25-69 in rural Anyang, China. HPV infection status was evaluated with PCR-based sequencing. Participants with at least two consecutive valid HPV results within the study period were included in the incidence and clearance analysis...
March 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28417036/verrucous-hyperplasia-case-report-and-differential-diagnosis
#5
Sonal Grover, Mihir Jha, Bhushan Sharma, Shekhar Kapoor, Kumud Mittal, Nithin K Parakkat, Anil B Shivappa, Ravleen Kaur
Verrucous hyperplasia (VH) is a rare exophytic oral mucosal lesion which can transform into verrucous carcinoma (VC), its malignant but clinically similar counterpart. These entities can be distinguished by the lack of invasive growth in VH cases; as such, it is essential to include a margin with adequate depth when performing a biopsy of the epithelium of the lesion. We report an 80-year-old male patient who presented to the Bapuji Dental College & Hospital, Davangere, Karanataka, India, in 2011 with a warty whitish-pink growth on the inside of his cheek...
February 2017: Sultan Qaboos University Medical Journal
https://www.readbyqxmd.com/read/28415922/host-pharmacokinetics-and-drug-accumulation-of-anthelmintics-within-target-helminth-parasites-of-ruminants
#6
A Lifschitz, C Lanusse, L Alvarez
Anthelmintic drugs require effective concentrations to be attained at the site of parasite location for a certain period to assure their efficacy. The processes of absorption, distribution, metabolism and excretion (pharmacokinetic phase) directly influence drug concentrations attained at the site of action and the resultant pharmacological effect. The aim of the current review article was to provide an overview of the relationship between the pharmacokinetic features of different anthelmintic drugs, their availability in host tissues, accumulation within target helminths and resulting therapeutic efficacy...
April 17, 2017: New Zealand Veterinary Journal
https://www.readbyqxmd.com/read/28413867/a-study-of-adjuvant-chemoradiotherapy-with-tri-weekly-cisplatin-for-postoperative-high-risk-oral-squamous-cell-carcinoma
#7
Mitsunobu Otsuru, Yoshihide Ota, Takayuki Aoki, Masashi Sasaki, Takatugu Suzuki, Yuya Denda, Miho Takahashi, Takeshi Akiba, Akihiro Kaneko
OBJECTIVE: The aim of this study was to assess the feasibility and safety profile of concurrent chemoradiotherapy with cisplatin in Japanese patients with postoperative high-risk oral cancer. METHODS: Patients with high-risk pathological features were selected from patients with oral squamous cell carcinoma who underwent surgery at the Department of Oral and Maxillofacial Surgery, Tokai University Hospital. Patients were given adjuvant chemoradiotherapy with tri-weekly cisplatin (100 mg/m(2)) (66 Gy/33 Fr), and the treatment completion rate was examined...
April 20, 2017: Tokai Journal of Experimental and Clinical Medicine
https://www.readbyqxmd.com/read/28411387/prophylactic-dissection-of-level-v-in-primary-mucosal-scc-in-the-clinically-n-positive-neck-a-systematic-review
#8
REVIEW
Timothy McLean, Stephen J Kerr, Charles E B Giddings
OBJECTIVE: To review the evidence for level V dissection in the management of previously untreated mucosal squamous cell carcinoma (SCC) of the head and neck presenting with nodal metastasis when level V is clinically uninvolved. DATA SOURCE: The Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA) were used to conduct a systematic review of the current literature, including all English language articles published after 1990. A literature search was performed on November 29, 2015, of Medline, EMBASE, Cumulative Index to Nursing and Allied Health Literature (CINAHL), and the Cochrane Library...
April 14, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28408991/transplantation-of-tissue-engineered-cell-sheets-for-stricture-prevention-after-endoscopic-submucosal-dissection-of-the-oesophagus
#9
Eduard Jonas, Sebastian Sjöqvist, Peter Elbe, Nobuo Kanai, Jenny Enger, Stephan L Haas, Ammar Mohkles-Barakat, Teruo Okano, Ryo Takagi, Takeshi Ohki, Masakazu Yamamoto, Makoto Kondo, Katrin Markland, Mei Ling Lim, Masayuki Yamato, Magnus Nilsson, Johan Permert, Pontus Blomberg, J-Matthias Löhr
BACKGROUND AND OBJECTIVE: Endoscopic mucosal dissection (ESD) is a treatment option for oesophagus tumours localized to the mucosa enabling en bloc removal of large lesions. The resulting larger mucosal defects have resulted in an increase in the occurrence of post-treatment strictures. Transplantation of autologous cell sheets, cultured from oral mucosa, has been shown to prevent post-ESD strictures. The aim of the study was to assess the efficacy and safety of cell sheet transplantation after oesophageal ESD in a Western patient population where reflux-associated pre-malignant and malignant conditions predominate...
December 2016: United European Gastroenterology Journal
https://www.readbyqxmd.com/read/28408775/detection-of-genome-antigen-and-antibodies-in-oral-fluids-from-pigs-infected-with-foot-and-mouth-disease-virus
#10
Chandrika Senthilkumaran, Ming Yang, Hilary Bittner, Aruna Ambagala, Oliver Lung, Jeffrey Zimmerman, Luis G Giménez-Lirola, Charles Nfon
Virus nucleic acids and antibody response to pathogens can be measured using swine oral fluids (OFs). Detection of foot-and-mouth disease virus (FMDV) genome in swine OFs has previously been demonstrated. Virus isolation and viral antigen detection are additional confirmatory assays for diagnosing FMDV, but these methods have not been evaluated using swine OF. The objectives of this study were to further validate the molecular detection of FMDV in oral fluids, evaluate antigen detection and FMDV isolation from swine OFs, and develop an assay for isotypic anti-FMDV antibody detection in OFs...
April 2017: Canadian Journal of Veterinary Research, Revue Canadienne de Recherche Vétérinaire
https://www.readbyqxmd.com/read/28407984/review-allergic-contact-stomatitis
#11
REVIEW
Liviu Feller, Neil Hamilton Wood, Razia Abdool Gafaar Khammissa, Johan Lemmer
Allergic contact stomatitis (ACS) is an oral mucosal immunoinflammatory disorder variably characterized clinically by erythematous plaques, vesiculation, ulceration, and/or hyperkeratosis and by pain, burning sensation, or itchiness. ACS is brought about by a T cell-mediated, delayed hypersensitivity immune reaction generated by a second or subsequent contact exposure of an allergen with the oral mucosa, in a genetically susceptible, sensitized subject. Lichenoid contact reaction is a variant of ACS brought about by direct contact with the oral mucosa of certain metals in dental restorations...
May 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28407835/-recurrent-pulmonary-infection-and-oral-mucosal-ulcer
#12
Fei-Mei Kuang, Lan-Lan Tang, Hui Zhang, Min Xie, Ming-Hua Yang, Liang-Chun Yang, Yan Yu, Li-Zhi Cao
An 8-year-old girl who had experienced intermittent cough and fever over a 3 year period, was admitted after experiencing a recurrence for one month. One year ago the patient experienced a recurrent oral mucosal ulcer. Physical examination showed vitiligo in the skin of the upper right back. Routine blood tests and immune function tests performed in other hospitals had shown normal results. Multiple lung CT scans showed pulmonary infection. The patient had recurrent fever and cough and persistent presence of some lesions after anti-infective therapy...
April 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28405551/spectrum-of-lip-lesions-in-a-tertiary-care-hospital-an-epidemiological-study-of-3009-indian-patients
#13
Shivani Bansal, Sana Shaikh, Rajiv S Desai, Islam Ahmad, Pavan Puri, Pooja Prasad, Pankaj Shirsat, Dipali Gundre
AIM: Large-scale population-based screening studies have identified lip lesions to be the most common oral mucosal lesions; however, few studies have been carried out to estimate the prevalence of lip lesions exclusively. The aim of present study is to highlight the diversity of lip lesions and determine their prevalence in an unbiased Indian population. MATERIALS AND METHODS: Lip lesions were selected from 3009 patients who visited the department over a period of 3 years (January 2012 to December 2014)...
March 2017: Indian Dermatology Online Journal
https://www.readbyqxmd.com/read/28405506/oral-delivery-of-tumor-microparticle-vaccines-activates-nod2-signaling-pathway-in-ileac-epithelium-rendering-potent-antitumor-t-cell-immunity
#14
Wenqian Dong, Huafeng Zhang, Xiaonan Yin, Yuying Liu, Degao Chen, Xiaoyu Liang, Xun Jin, Jiadi Lv, Jingwei Ma, Ke Tang, Zhuowei Hu, Xiaofeng Qin, Bo Huang
Exploiting gut mucosal immunity to design new antitumor vaccination strategy remains unexplored. Tumor cell-derived microparticles (T-MP) are natural biomaterials that are capable of delivering tumor antigens and innate signals to dendritic cells (DC) for tumor-specific T cell immunity. Here, we show that T-MPs by oral vaccination route effectively access and activate mucosal epithelium, leading to subsequent antitumor T cell responses. Oral vaccination of T-MPs generated potent inhibitory effect against the growth of B16 melanoma and CT26 colon cancer in mice, which required both T cell and DC activation...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28405154/breast-cancer-metastasizing-to-the-stomach-mimicking-primary-gastric-cancer-a-case-report
#15
Kwangil Yim, Sang Mi Ro, Jieun Lee
Breast cancer with stomach metastasis rare with an incidence of 1% or less among metastatic breast cancer patients. We experienced a case of breast cancer metastasizing to the stomach in 65-year-old female patient. She experienced dyspepsia and poor oral intake before visiting the clinic. Diffuse infiltration with nodular mucosal thickening of the stomach wall was observed, suggesting advanced gastric cancer based on gross endoscopic finding. Spread of poorly cohesive tumor cells in the gastric mucosa observed upon hematoxylin and eosin stain resembled signet ring cell carcinoma, but diffuse positive staining for GATA3 in immunohistochemical stain allowed for a conclusive diagnosis of breast cancer metastasizing to the stomach...
March 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28404968/loss-of-nuclear-bap1-expression-is-associated-with-poor-prognosis-in-oral-mucosal-melanoma
#16
Hao Song, Lizhen Wang, Jiong Lyu, Yunteng Wu, Wei Guo, Guoxin Ren
Oral mucosal melanoma (OMM) is an aggressive neoplasm with an extremely poor prognosis. BAP1 is a tumor suppressor that has been associated with the outcome of melanomas and other malignancies. In this study, we investigated the genetic alterations in BAP1 and the prognostic potential of BAP1 protein expression in oral mucosal melanoma. DNA sequence analysis of BAP1 from 12 OMM patient samples revealed missense mutations in the tissues from four patients. Based on immunohistochemical staining, loss of nuclear BAP1 expression was associated with poor overall survival (P < 0...
March 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28403570/tnf-as-marker-of-oral-candidiasis-hsv-infection-and-mucositis-onset-during-chemotherapy-in-leukemia-patients
#17
Velia Ramírez-Amador, José Gabriel Zambrano, Gabriela Anaya-Saavedra, Alejandro Zentella-Dehesa, Esther Irigoyen Camacho, N Meráz-Cruz, Sergio Ponce de León
OBJECTIVE: To assess changes in the salivary expression of IL-1α,-1β,-2,-6,-10,-17 and TNF in acute leukemia (AL) patients before and during chemotherapy, and its association with HSV infection, oral candidiasis (OC) and oral mucositis (OM) onset. METHODS: Cohort study in AL patients >15 years starting induction chemotherapy at a Mexican oncological center (2013-2014). Oral lesions (OLs) onset was assessed during follow-up, and saliva was obtained at baseline, at visit 2 (days 4-12) and at visit 3 (days 13-21) after chemotherapy; treated with a protease inhibitor and stored at -70°C...
April 12, 2017: Oral Diseases
https://www.readbyqxmd.com/read/28403142/melatonin-protects-rats-from-radiotherapy-induced-small-intestine-toxicity
#18
Beatriz Fernández-Gil, Ahmed E Abdel Moneim, Francisco Ortiz, Ying-Qiang Shen, Viviana Soto-Mercado, Miguel Mendivil-Perez, Ana Guerra-Librero, Darío Acuña-Castroviejo, María M Molina-Navarro, José M García-Verdugo, Ramy K A Sayed, Javier Florido, Juan D Luna, Luis Carlos López, Germaine Escames
Radiotherapy-induced gut toxicity is among the most prevalent dose-limiting toxicities following radiotherapy. Prevention of radiation enteropathy requires protection of the small intestine. However, despite the prevalence and burden of this pathology, there are currently no effective treatments for radiotherapy-induced gut toxicity, and this pathology remains unclear. The present study aimed to investigate the changes induced in the rat small intestine after external irradiation of the tongue, and to explore the potential radio-protective effects of melatonin gel...
2017: PloS One
https://www.readbyqxmd.com/read/28401477/a-recombinant-probiotic-lactobacillus-casei-expressing-the-clostridium-perfringens-%C3%AE-toxoid-as-an-orally-vaccine-candidate-against-gas-gangrene-and-necrotic-enteritis
#19
Mojtaba Alimolaei, Mehdi Golchin, Jalil Abshenas, Majid Ezatkhah, Mehrdad Shamsaddini Bafti
The alpha-toxin is one of the virulence factors of Clostridium perfringens for gas gangrene in humans and animals or necrotic enteritis in poultry. The C-terminal domain of this toxin ( cpa 247-370 ) was synthesized and cloned into pT1NX vector to construct the pT1NX-alpha plasmid. This surface-expressing plasmid was electroporated into Lactobacillus casei ATCC 393, generating the recombinant L. casei strain expressing alpha-toxoid (LC-α strain). Expression of this modified alpha-toxoid was confirmed by SDS-PAGE, immunoblotting, and direct immunofluorescence microscopy...
April 11, 2017: Probiotics and Antimicrobial Proteins
https://www.readbyqxmd.com/read/28401452/polymorphism-of-promoter-region-of-tnfrsf1a-gene-610%C3%A2-t%C3%A2-%C3%A2-g-as-a-novel-predictive-factor-for-radiotherapy-induced-oral-mucositis-in-hnc-patients
#20
Anna Brzozowska, Tomasz Powrózek, Iwona Homa-Mlak, Radosław Mlak, Marzanna Ciesielka, Paweł Gołębiowski, Teresa Małecka-Massalska
Every year, about 650 thousand new cases of Head and Neck Cancer (HNC) are diagnosed globally. Apart from surgery, radiotherapy (RTH), chemotherapy (CHT) or its combination is used in the treatment of HNC. One of the most frequent complications and, at the same time, limitations of RTH is oral mucositis (OM). Proinflammatory cytokines (including TNF-α) play a key role in the development of OM. Genetic alterations, i.e. single nucleotide polymorphisms (SNPs) within genes encoding for receptors for TNF (ie. TNFRSF1A) may change their function...
April 11, 2017: Pathology Oncology Research: POR
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