scholarly journals Plasma Carotenoids and Biomarkers of Oxidative Stress in Patients with prior Head and Neck Cancer

2009 ◽  
Vol 4 ◽  
pp. BMI.S2192 ◽  
Author(s):  
Kathryn J. Hughes ◽  
Susan T. Mayne ◽  
Jeffrey B. Blumberg ◽  
Judy D. Ribaya-Mercado ◽  
Elizabeth J. Johnson ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Head And Neck Cancer ◽  
Head And Neck ◽  
Neck Cancer ◽  
Fruits And Vegetables ◽  
Early Stage ◽  
Antioxidant Properties ◽  
Beta Carotene ◽  
Cross Sectional

Diets high in fruits and vegetables are generally believed protective against several chronic diseases. One suggested mechanism is a reduction in oxidative stress. The carotenoids, nutrients found in colored fruits and vegetables, possess antioxidant properties in vitro, but their role in humans is less well documented. The aim of this cross-sectional study was to explore the relationships between the most abundant plasma carotenoids (alpha-carotene, beta-carotene, lycopene, lutein, zeaxanthin and beta-cryptoxanthin), as well as grouped carotenoids (total xanthophylls, carotenes and carotenoids), and urinary excretion of the F2-isoprostanes (F2-IsoPs), stable and specific biomarkers of oxidative damage to lipids. Two F2-IsoP measures were utilized: total F2-IsoPs and 8-iso-PGF2α. The study population (N = 52) was drawn from a study among patients curatively treated for early-stage head and neck cancer. Unadjusted linear regression analyses revealed significant inverse associations between plasma lutein, total xanthophylls and both F2-IsoP measures at baseline. After control for potential confounders, all individual and grouped xanthophylls remained inversely associated with the F2-IsoP measures, but none of these associations achieved significance. The carotenes were not inversely associated with total F2-IsoPs or 8-iso-PGF2a concentrations. The finding of consistent inverse associations between individual and grouped xanthophylls, but not individual and grouped carotenes, and F2-IsoPs is intriguing and warrants further investigation.

Hydroxyurea, fluorouracil, and concomitant radiotherapy in poor-prognosis head and neck cancer: a phase I-II study.

1989 ◽  
Vol 7 (6) ◽  
pp. 761-768 ◽  
Author(s):  
E E Vokes ◽  
W R Panje ◽  
R L Schilsky ◽  
R Mick ◽  
A M Awan ◽  
...  
Keyword(s):  
Head And Neck Cancer ◽  
Head And Neck ◽  
Neck Cancer ◽  
Poor Prognosis ◽  
Local Therapy ◽  
Complete Response ◽  
Synergistic Activity ◽  
Dose Levels ◽  
Concomitant Radiotherapy

Hydroxyurea and fluorouracil (5-FU) are active cytotoxic drugs in head and neck cancer and have shown synergistic activity in vitro. Both drugs also act as radiosensitizers. Therefore, we administered radiotherapy at daily fractions of 180 to 200 cGy with simultaneous continuous infusion 5-FU at 800 mg/m2/d and escalating daily doses of hydroxyurea for five days. Cycles were repeated every other week until completion of radiotherapy. Thirty-nine inoperable patients were treated at six dose levels of hydroxyurea ranging from 500 mg to 3,000 mg orally daily. Little effect of hydroxyurea on the WBC or platelet count was noted in patients receiving less than 2,000 mg daily, whereas both parameters decreased progressively in patients receiving 2,000 mg daily or more. Mucositis occurred at all dose levels, requiring frequent dose reduction of 5-FU; however, in patients receiving a daily hydroxyurea dose of 2,000 mg or less, the median weekly 5-FU dose administered was 1,725 mg/m2 (86% of the intended 5-FU dose), whereas at daily hydroxyurea doses exceeding 2,000 mg, the median weekly 5-FU dose decreased to 1,133 mg/m2 (57%) (P = .001). Of 15 evaluable patients with recurrent disease after prior local therapy only one failed to respond; six had a complete response (CR), and eight a partial response (PR). Of 17 evaluable patients without prior local therapy, 12 had a CR, with no patient developing recurrence in the irradiated field to date; five patients had a PR. We conclude that the recommended dose of hydroxyurea in this regimen is 2,000 mg daily. That dose will cause mild to moderate myelosuppression and will allow for delivery of greater than 80% of the intended 5-FU dose. The activity of this regimen in poor-prognosis head and neck cancer exceeds 90%; its further investigation in previously untreated patients is warranted.

scholarly journals Ionizing radiation affects the composition of the proteome of extracellular vesicles released by head-and-neck cancer cells in vitro

2019 ◽  
Vol 60 (3) ◽  
pp. 289-297 ◽  
Author(s):  
Agata Abramowicz ◽  
Anna Wojakowska ◽  
Lukasz Marczak ◽  
Malgorzata Lysek-Gladysinska ◽  
Mateusz Smolarz ◽  
...  
Keyword(s):  
Head And Neck Cancer ◽  
Ionizing Radiation ◽  
Head And Neck ◽  
Cancer Cells ◽  
Extracellular Vesicles ◽  
Neck Cancer

Clinical utility of a functional lumen imaging probe in management of dysphagia following head and neck cancer therapies

Endoscopy ◽  
2017 ◽  
Vol 49 (09) ◽  
pp. 848-854 ◽  
Author(s):  
Peter Wu ◽  
Michal Szczesniak ◽  
Julia Maclean ◽  
Lennart Choo ◽  
Harry Quon ◽  
...  
Keyword(s):  
Head And Neck Cancer ◽  
Diagnostic Accuracy ◽  
Head And Neck ◽  
Neck Cancer ◽  
Characteristic Curve ◽  
Diagnostic Tools ◽  
Cross Sectional ◽  
Imaging Probe ◽  
Functional Lumen Imaging Probe ◽  
Dysphagic Patients

Abstract Background and aims Chemoradiotherapy for head and neck cancer (HNC) with/without laryngectomy commonly causes dysphagia. Pharyngoesophageal junction (PEJ) stricturing is an important contributor. We aimed to validate a functional lumen imaging probe (the EndoFLIP system) as a tool for quantitating pretreatment PEJ distensibility and treatment-related changes in HNC survivors with dysphagia and to evaluate the diagnostic accuracy of EndoFLIP-derived distensibility in detecting PEJ strictures. Methods We studied 34 consecutive HNC survivors with long-term (> 12 months) dysphagia who underwent endoscopic dilation for suspected strictures. Twenty non-dysphagic patients undergoing routine endoscopy served as controls. PEJ distensibility was measured at endoscopy with the EndoFLIP system pre- and post-dilation. PEJ stricture was defined as the presence of a mucosal tear post-dilation. Results PEJ stricture was confirmed in 22/34 HNC patients (65 %). During distension up to 60 mmHg, the mean EndoFLIP-derived narrowest cross-sectional area (nCSA) in HNC patients with strictures, without strictures, and in controls were 58 mm2 (95 % confidence interval [CI] 22 to 118), 195 mm2 (95 %CI 129 to 334), and 227 mm2 (95 %CI 168 to 316), respectively. A cutoff of 114 mm2 for the nCSA at the PEJ had perfect diagnostic accuracy in detecting strictures (area under the receiver operating characteristic curve = 1). In patients with strictures, a single session of dilation increased the nCSA by 29 mm2 (95 %CI 20 to 37; P < 0.001). In patients with no strictures, dilation caused no change in the nCSA (mean difference 13 mm2 [95 %CI −4 to 30]; P = 0.13). Conclusions EndoFLIP is a highly accurate technique for the detection of PEJ strictures. EndoFLIP may complement conventional diagnostic tools in the detection of pharyngeal outflow obstruction.

Patterns of stress coping and depression among patients with head and neck cancer: A Japanese cross-sectional study

2017 ◽  
Vol 27 (2) ◽  
pp. 556-562 ◽  
Author(s):  
Kanako Ichikura ◽  
Aya Yamashita ◽  
Taro Sugimoto ◽  
Seiji Kishimoto ◽  
Eisuke Matsushima
Keyword(s):  
Head And Neck Cancer ◽  
Head And Neck ◽  
Neck Cancer ◽  
Cross Sectional Study ◽  
Stress Coping ◽  
Sectional Study ◽  
Cross Sectional

scholarly journals Postoperative Radiotherapy in Head and Neck Cancer

2010 ◽  
Vol 2 (1) ◽  
pp. 43-51
Author(s):  
Vedang Murthy ◽  
Sayan Kundu ◽  
Tanweer Shahid ◽  
Ashwini Budrukkar ◽  
Tejpal Gupta ◽  
...  
Keyword(s):  
Head And Neck Cancer ◽  
Targeted Therapy ◽  
Head And Neck ◽  
Neck Cancer ◽  
Early Stage ◽  
Postoperative Radiotherapy ◽  
Locally Advanced ◽  
Head And Neck Cancers ◽  
Advanced Head ◽  
Locoregional Failure

Abstract Though early stage head and neck cancers can be cured either by surgery or radiation, patients with locally advanced disease continues to pose a therapeutic challenge. Locoregional failure is the major cause of death in head and neck cancers. As the outcome of locally advanced head and neck cancer is less than promising, a combined modality approach is generally undertaken in this group of patients. The combination of surgery, radiation and more recently, chemotherapy and targeted therapy can improve outcomes in locally advanced head and neck cancer patients. This overview discusses the rationale and role of postoperative radiotherapy (PORT) in advanced head and neck cancers, the radiotherapy technique in brief and methods of enhancing the efficacy of postoperative RT by altering the fractionation schedules and adding chemotherapy and targeted therapy.

scholarly journals Inhibition of Glutathione and Thioredoxin Metabolism Enhances Sensitivity to Perifosine in Head and Neck Cancer Cells

2009 ◽  
Vol 2009 ◽  
pp. 1-10 ◽  
Author(s):  
Andrean L. Simons ◽  
Arlene D. Parsons ◽  
Katherine A. Foster ◽  
Kevin P. Orcutt ◽  
Melissa A. Fath ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Head And Neck Cancer ◽  
Head And Neck ◽  
Neck Cancer ◽  
Reductase Activity ◽  
Thioredoxin Reductase ◽  
Buthionine Sulfoximine ◽  
Human Head ◽  
Akt Inhibitor ◽  
Simultaneous Treatment

The hypothesis that the Akt inhibitor, perifosine (PER), combined with inhibitors of glutathione (GSH) and thioredoxin (Trx) metabolism will induce cytotoxicity via metabolic oxidative stress in human head and neck cancer (HNSCC) cells was tested. PER induced increases in glutathione disulfide (%GSSG) in FaDu, Cal-27, and SCC-25 HNSCCs as well as causing significant clonogenic cell killing in FaDu and Cal-27, which was suppressed by simultaneous treatment with N-acetylcysteine (NAC). An inhibitor of GSH synthesis, buthionine sulfoximine (BSO), sensitized Cal-27 and SCC-25 cells to PER-induced clonogenic killing as well as decreased total GSH and increased %GSSG. Additionally, inhibition of thioredoxin reductase activity (TrxRed) with auranofin (AUR) was able to induce PER sensitization in SCC-25 cells that were initially refractory to PER. These results support the conclusion that PER induces oxidative stress and clonogenic killing in HNSCC cells that is enhanced with inhibitors of GSH and Trx metabolism.

scholarly journals Treatment and survival of second primary early-stage lung cancer, following treatment of head and neck cancer in the Netherlands

Lung Cancer ◽  
2016 ◽  
Vol 94 ◽  
pp. 54-60 ◽  
Author(s):  
Alexander V. Louie ◽  
Ronald A. Damhuis ◽  
Cornelis J. Haasbeek ◽  
Andrew Warner ◽  
Danielle Rodin ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Head And Neck Cancer ◽  
The Netherlands ◽  
Head And Neck ◽  
Neck Cancer ◽  
Early Stage ◽  
Second Primary ◽  
Early Stage Lung Cancer ◽  
Stage Lung Cancer

Head and Neck Cancer Literacy in Nigeria: A systematic Review of the Literature

2021 ◽  
Vol 1 (1) ◽  
pp. 25-49
Author(s):  
Kehinde Kanmodi ◽  
Precious Kanmodi ◽  
Mike Ogbeide ◽  
Jacob Nwafor
Keyword(s):  
Head And Neck Cancer ◽  
Head And Neck ◽  
Neck Cancer ◽  
African Country ◽  
Cross Sectional ◽  
Level Of Knowledge ◽  
Cancer Literacy ◽  
English Articles ◽  
Study Quality Assessment ◽  
Appraisal Tool

Abstract Introduction: Head and neck cancer (HNC), oral cancer inclusive (OC), is one of the major causes of cancer-related deaths globally, especially in Nigeria – a developing African country. Public literacy about HNC plays a very crucial role in HNC prevention. Aim: This study aimed to systematically review existing literature on literacy of HNC in Nigeria. Methods: We searched the PubMed, Google Scholar and AJOL databases for all relevant English articles published on HNC literacy in Nigeria from January 2000 till October 2020. Only relevant articles were included for the study. Quality assessment of the full text of the included articles was done using the Appraisal Tool for Cross-Sectional Studies (AXIS); also, relevant data were extracted from these articles and analyzed thematically. Results: A total of 21 articles (19 surveys and 2 interventional studies), which studied a total population of 7,883 people, were included in the study. All the included articles were rated “excellent” (70 – 100%), regarding quality. The awareness rates of HNC/OC, as documented in the included studies, ranged from 0% to 100%; however, the rate recorded in the majority of these studies was <50%. In-depth knowledge of HNC/OC was found to be generally poor among the surveyed population groups; however, education intervention was found to improve in-depth knowledge of HNC and attitudes toward peer and nonpeer education about HNC among Nigerians. Conclusion: The level of knowledge regarding HNC, in Nigeria, is low. The use of relevant health education programs to boost knowledge about HNC among the Nigerian public is highly recommended.

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