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https://www.readbyqxmd.com/read/29222021/identification-and-validation-of-salivary-proteomic-signatures-for-non-invasive-detection-of-ovarian-cancer
#1
Md Tajmul, Farhat Parween, Lata Singh, Sandeep R Mathur, J B Sharma, Sunesh Kumar, D N Sharma, Savita Yadav
Ovarian cancer (OC) is one of the most lethal cancers among all gynecological malignancies. An effective and non-invasive screening approach is needed urgently to reduce high mortality rate. The purpose of this study was to identify the salivary protein signatures (SPS) for non-invasive detection of ovarian cancer. Differentially expressed SPS were identified by fluorescence-based 2D-DIGE coupled with MALDI/TOF-MS. The expression levels of three differential proteins (Lipocalin-2, indoleamine-2, 3-dioxygenase1 (IDO1) and S100A8) were validated using western blotting and ELISA...
December 5, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29216393/monte-carlo-simulation-of-out-of-field-organ-doses-and-cancer-risk-in-tanzania-for-radiation-therapy-of-unilateral-retinoblastoma-using-a-60co-unit
#2
Suleiman Ameir Suleiman, Yaping Qi, Yifei Pi, X George Xu
The use of 60Co teletherapy unit for the treatment of unilateral retinoblastoma (Rb) patients is a very common procedure in many developing countries including Tanzania. The aim of this study was to estimate organ-specific absorbed doses from an external beam radiation therapy 60Co unit for unilateral Rb and to assess the risks of the patients developing a secondary primary cancer. The absorbed dose estimations were based on a Monte Carlo method and a set of age-dependent computational male phantoms. The estimated doses were used to calculate the secondary cancer risks in out-of-field organs using the Biological Effects of Ionising Radiation VII risk models...
December 5, 2017: Radiation Protection Dosimetry
https://www.readbyqxmd.com/read/29209436/the-potential-relationship-between-flammer-and-sj%C3%A3-gren-syndromes-the-chime-of-dysfunction
#3
REVIEW
Babak Baban, Olga Golubnitschaja
Flammer syndrome (FS) is a term to blanket a cluster of vascular and nonvascular signs and symptoms linked to primary vascular dysregulation (PVD), increased sensitivity to various stimuli (stress, drugs, etc.) and altered sense regulation such as pain, smell and thirst perception. On one hand, disruption of blood barrier and homeostasis of the body are the main targets of vascular irregularity. Inflammation and immune disorders including autoimmunity are considered as a consequence of the abnormal vascular regulation processes...
December 2017: EPMA Journal
https://www.readbyqxmd.com/read/29207199/genes-and-pathways-associated-with-the-occurrence-of-malignancy-in-benign-lymphoepithelial-lesions
#4
Yao Mawulikplimi Adzavon, Pengxiang Zhao, Xin Zhang, Mengyu Liu, Baobei Lv, Linqi Yang, Xujuan Zhang, Fei Xie, Mingzi Zhang, Jianmin Ma, Xuemei Ma
There is increasing evidence concerning the occurrence of malignant lymphoma among people suffering from Mikulicz disease, also termed benign lymphoepithelial lesion (BLEL) and immunoglobulin G4‑associated disease. However, the underlying molecular mechanism of the malignant transformation remains unclear. The present study aimed to investigate the gene expression profile between BLEL and malignant lymphoepithelial lesion (MLEL) conditions using tissue microarray analysis, to identify genes and pathways which may be associated with the risk of malignant transformation...
November 24, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29204340/evaluation-of-coexistence-of-cancer-and-active-tuberculosis-16-case-series
#5
Beyhan Çakar, Aydın Çiledağ
Introduction: Tuberculosis is an important risk factor for cancer. Pulmonary TB and lung cancer(LC) may mimic each other especially in the aspect of the clinical and radiological features. The aim of the study was to evaluate the features and risk factors of cases with coexistence cancer and active TB. Methodology: We retrospectively reviewed the medical records of patients with coexisting TB and cancer a period from 2009 to 2014. We evaluated demographic data, the ways diagnosis of TB cases, the location of TB and cancer, TB treatment results of the cases...
2018: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/29201965/salivary-chemical-factors-in-relation-with-oral-cancer-in-smokers-and-non-smokers-a-literature-review
#6
REVIEW
Tahereh Nosratzehi
Squamous cell carcinoma of oral cavity is of malignant tumors, which causes cancerous complications. DNA damage, mainly because of products of oxidative stress like reactive oxygen species, is a frequent mutagenic that triggers carcinoma. Smoking increases the probability of cancer incidence. Saliva is the first biological medium to interact with external compounds, especially smoking substances. The present study overviews the salivary level of some remarkable compounds in relation with smoking and squamous cell carcinoma...
December 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/29200966/microencapsulation-of-low-passage-poorly-differentiated-human-mucoepidermoid-carcinoma-cells-by-alginate-microcapsules-in-vitro-profiling-of-angiogenesis-related-molecules
#7
Sen Yang, Li-Juan Guo
Background: Human mucoepidermoid carcinoma (MEC) is regarded as the most common primary salivary malignancy. High-grade MEC has a high risk of recurrence and poor prognosis. Tumor angiogenesis, induced by poorly differentiated cancer cells of high-grade MEC, contributes to tumor growth and metastasis. Therefore, elucidating molecular mechanisms underlying the pro-angiogenic ability of poorly differentiated MEC cells is critical for the understanding of high-grade MEC progression. It is well known that three-dimensional (3D) cell culture, in contrast with conventional two-dimensional (2D) culture, provides a better approach to in vitro recapitulation of in vivo characteristics of cancer cells and their surrounding microenvironment...
2017: Cancer Cell International
https://www.readbyqxmd.com/read/29200679/status-of-serum-and-salivary-ascorbic-acid-in-oral-potentially-malignant-disorders-and-oral-cancer
#8
Supriya Bhat, Subhas Gogineni Babu, Saidath K Bhat, Renita Lorina Castelino, Kumuda Rao, Medhini Madi
Background and Aims: The aim of this study was to estimate the detoxification status of serum and saliva by assessing the serum and salivary Vitamin C in oral potentially malignant disorders and oral cancer. Subjects and Methods: A total of 90 subjects, 30 subjects with oral potentially malignant disorders, 30 subjects with oral cancer, and 30 healthy subjects (controls) were included in the study. Serum and saliva were collected and levels of Vitamin C were assessed...
July 2017: Indian Journal of Medical and Paediatric Oncology
https://www.readbyqxmd.com/read/29199150/peroxiredoxin-2-and-zinc-alpha-2-glycoprotein-as-potentially-combined-novel-salivary-biomarkers-for-early-detection-of-oral-squamous-cell-carcinoma-using-proteomic-approaches
#9
Chukkris Heawchaiyaphum, Chamsai Pientong, Pensiri Phusingha, Patravoot Vatanasapt, Supannee Promthet, Jureerut Daduang, Watchareporn Teeramatwanich, Bunkerd Kongyingyoes, Jureeporn Chuerduangphui, Tipaya Ekalaksananan
No effective screening method is available for oral squamous cell carcinoma (OSCC) that is recognized to influence by environmental factors as well as human papillomavirus (HPV) and Epstein-Barr virus (EBV). Therefore, we sought to identify salivary biomarkers for screening of OSCC with or without HPV and/or EBV infection. Saliva, lesion and oral exfoliated cells were collected from OSCC patients and cancer-free controls (CFCs) and grouped depending on their HPV- and EBV-infection status. Salivary protein was precipitated and subjected to 2-dimensional gel electrophoresis...
November 30, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/29198302/obstructive-sleep-apnea-in-gestational-diabetes-a-pilot-study-of-the-role-of-the-hypothalamic-pituitary-adrenal-axis
#10
Margaret H Bublitz, Joao Filipe Monteiro, Andrew Caraganis, Susan Martin, Jeffrey Parker, Lucia Larson, Margaret A Miller, Ghada Bourjeily
STUDY OBJECTIVES: Obstructive sleep apnea (OSA) in pregnancy is associated with gestational diabetes mellitus (GDM). This propensity toward heightened insulin resistance in OSA patients has not been well characterized and may be related to dysregulation of the hypothalamic-pituitary-adrenal (HPA) axis. The aim of this study was to (1) assess the prevalence of OSA in pregnant women with GDM, (2) evaluate whether HPA axis dysregulation relates to OSA, and (3) investigate the relation between insulin resistance and OSA...
November 29, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/29195668/key-role-of-local-acetaldehyde-in-upper-gi-tract-carcinogenesis
#11
REVIEW
Mikko Salaspuro
Ethanol is neither genotoxic nor mutagenic. Its first metabolite acetaldehyde, however, is a powerful local carcinogen. Point mutation in ALDH2 gene proves the causal relationship between acetaldehyde and upper digestive tract cancer in humans. Salivary acetaldehyde concentration and exposure time are the two major and quantifiable factors regulating the degree of local acetaldehyde exposure in the ideal target organ, oropharynx. Instant microbial acetaldehyde formation from alcohol represents >70% of total ethanol associated acetaldehyde exposure in the mouth...
October 2017: Best Practice & Research. Clinical Gastroenterology
https://www.readbyqxmd.com/read/29192740/bilateral-parotid-gland-metastases-from-gastric-signet-ring-cell-carcinoma
#12
Federico Nichetti, Federica Morano, Alessandra Fabbri, Filippo de Braud, Maria Di Bartolomeo
INTRODUCTION: Signet-ring cell (SRC) carcinoma is a common subtype of gastric adenocarcinoma associated with poor prognosis. Metastatic involvement of the parotid gland has been reported in gastric cancer patients, but never bilaterally nor in association with the SRC histotype. Here, we report the first case and a brief review of the literature. CASE DESCRIPTION: A 47-year-old woman was referred to our center for a signet-ring gastric carcinoma with synchronous hepatic and peritoneal metastases...
November 22, 2017: Tumori
https://www.readbyqxmd.com/read/29189391/blood-biomarkers-for-early-diagnosis-of-oesophageal-cancer-a-systematic-review
#13
Andrew T Kunzmann, Úna C McMenamin, Andrew D Spence, Ronan T Gray, Liam J Murray, Richard C Turkington, Helen G Coleman
BACKGROUND: Oesophageal cancer prognosis remains poor owing to the inability to detect the disease at an early stage. Nontissue (serum, urinary or salivary) biomarkers potentially offer less invasive methods to aid early detection of oesophageal cancer. We aimed to systematically review studies assessing the relationship between nontissue biomarkers and subsequent development of oesophageal cancer. METHODS: Using terms for biomarkers and oesophageal cancer, Medline, EMBASE and Web of Science were systematically searched for longitudinal studies, published until April 2016, which assessed the association between nontissue biomarkers and subsequent oesophageal cancer risk...
November 17, 2017: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29184122/bacterial-alterations-in-salivary-microbiota-and-their-association-in-oral-cancer
#14
Wei-Hsiang Lee, Hui-Mei Chen, Shun-Fa Yang, Chao Liang, Chih-Yu Peng, Feng-Mao Lin, Lo-Lin Tsai, Buor-Chang Wu, Chung-Han Hsin, Chun-Yi Chuang, Ting Yang, Tzu-Ling Yang, Shinn-Ying Ho, Wen-Liang Chen, Kwo-Chang Ueng, Hsien-Da Huang, Chien-Ning Huang, Yuh-Jyh Jong
Oral squamous cell carcinoma (OSCC) is the most common malignant neoplasm of the oral cavity and the fourth leading malignancy and cause of cancer-related death in the male population of Taiwan. Most cases are detected at advanced stages, resulting in poor prognosis. Therefore, improved detection of early oral health disorders is indispensable. The involvement of oral bacteria in inflammation and their association with OSCC progression provide a feasible target for diagnosis. Due to the nature of oral neoplasms, the diagnosis of epithelial precursor lesions is relatively easy compared with that of other types of cancer...
November 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29178624/clinical-and-genetic-characteristics-of-xeroderma-pigmentosum-in-nepal
#15
Pauline Espi, Sudip Parajuli, Meriem Benfodda, Anne-Sophie Lebre, Upama Paudel, Anne Grange, Virginie Grybek, Thomas Grange, Nadem Soufir, Florent Grange
BACKGROUND: Little is known about xeroderma pigmentosum (XP) in Himalayan countries. OBJECTIVE: To describe clinical characteristics of XP in Nepal and investigate its genetic bases. METHODS: This study was carried out on all consecutive patients referred for XP to a Nepalese tertiary referral centre in 2014-2015. Clinical data were collected using a standardized questionnaire. DNA was extracted from salivary samples and next generation sequencing (NGS) was conducted using a panel covering all 8 known XP genes (classical XP (XPA to XPG) and XP variant) and a skin cancer modifier gene, the melanocortin 1 receptor gene (MC1R)...
November 24, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29174861/evaluation-of-saliva-and-plasma-cytokine-biomarkers-in-patients-with-oral-squamous-cell-carcinoma
#16
L T Lee, Y K Wong, H Y Hsiao, Y W Wang, M Y Chan, K W Chang
The aim of this study was to investigate potential biomarkers in human saliva and plasma to aid in the early diagnosis of oral squamous cell carcinoma (OSCC). Saliva and plasma samples obtained from OSCC patients (n=41) and non-oral cancer patients (n=24) were analyzed by Luminex Bead-based Multiplex Assay. Data were analyzed using the non-parametric Mann-Whitney U-test, Kruskal-Wallis test, and receiver operating characteristics curve (ROC) to evaluate the predictive power of 14 biomarkers individually for OSCC diagnosis...
November 23, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29173756/proton-therapy-for-head-and-neck-cancers
#17
REVIEW
Pierre Blanchard, Gary Brandon Gunn, Alexander Lin, Robert L Foote, Nancy Y Lee, Steven J Frank
Because of its sharp lateral penumbra and steep distal fall-off, proton therapy offers dosimetric advantages over photon therapy. In head and neck cancer, proton therapy has been used for decades in the treatment of skull-base tumors. In recent years the use of proton therapy has been extended to numerous other disease sites, including nasopharynx, oropharynx, nasal cavity and paranasal sinuses, periorbital tumors, skin, and salivary gland, or to reirradiation. The aim of this review is to present the physical properties and dosimetric benefit of proton therapy over advanced photon therapy; to summarize the clinical benefit described for each disease site; and to discuss issues of patient selection and cost-effectiveness...
January 2018: Seminars in Radiation Oncology
https://www.readbyqxmd.com/read/29172807/impact-of-coping-strategies-on-perceived-stress-depression-and-cortisol-profiles-among-gynecologic-cancer-patients
#18
Chelsea Siwik, Allison Hicks, Kala Phillips, Whitney N Rebholz, Lauren A Zimmaro, Inka Weissbecker, Elizabeth Cash, Sandra E Sephton
We explored associations between problem-focused, emotional processing, and emotional expression coping strategies and markers of stress including perceived stress, depressive symptoms, and diurnal cortisol profiles among women with gynecologic cancer. Problem-focused coping was associated with less perceived stress, fewer depressive symptoms, and more rhythmic diurnal salivary cortisol profiles. Emotional processing was associated with lower perceived stress and fewer depressive symptoms. Emotional expression was associated with fewer depressive symptoms and elevated diurnal mean and evening cortisol levels...
November 1, 2017: Journal of Health Psychology
https://www.readbyqxmd.com/read/29172327/head-and-neck-cancer-patients-%C3%A2-information-for-the-general-dental-practitioner
#19
Jennifer Noone, Craig Barclay
Salivary gland damage is the most common adverse effect associated with radiation therapy to the head and neck. A combination of hyposalivation and dietary changes, with a reduced emphasis on oral hygiene practices can contribute to a massive increase in a person’s caries risk status. This can be further complicated by limited mouth opening. To enable optimal dental care for head and neck cancer patients before, during and after radiation therapy, patients must be informed and educated about the potential risks of dental caries and the preventive strategies available...
March 2017: Dental Update
https://www.readbyqxmd.com/read/29171050/contemplating-resectability
#20
Andrew G Shuman
Suzie loves to talk. A successful mid-thirties businesswoman, she is a self-described social butterfly-which made her diagnosis of tongue cancer even more devastating. She came to the clinic complaining of a lump in her throat, which in most young healthy people turns out to be benign and easily treated. But not for Suzie, who had a very rare salivary tumor arising in the back of her tongue. Its slow growth was both a blessing and a curse; such tumors do not kill people quickly, but they typically require surgery...
November 2017: Hastings Center Report
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