• Title/Summary/Keyword: APJCP

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What is the Mechanism of Progression with Trastuzumab Treatment - Escape or Resistance?

  • Sendur, Mehmet Ali Nahit;Aksoy, Sercan;Ozdemir, Nuriye Yildirim;Zengin, Nurullah;Altundag, Kadri
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.11
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    • pp.5915-5916
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    • 2012
  • Human epidermal growth factor receptor (HER) 2 overexpression, observed in 20-25 percent of invasive breast cancers, is well known to be associated with a more aggressive phenotype and poor prognosis, with resistance to certain chemotherapeutic agents. The majority of patients with metastatic breast cancer who initially respond to trastuzumab, demonstrate disease progression within 1 year of treatment initiation. Furthermore, lack of response in some patients and relapse during the course of therapy, continue to challenge researchers and clinicians. A better understanding of the fundamental mechanisms of trastuzumab action is required so that new therapies directed at HER2 can be developed. We present here findings for mechanisms, both of Trastuzumab action and clinical resistance or escape.

Awareness Survey on Knowledge of Microbial Infectious Causes of Cancer in Northern State of Sudan

  • Ahmed, Hussain Gadelkarim
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.11
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    • pp.5497-5500
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    • 2012
  • Objective: The aim of this study was to assess the level of cancer awareness after delivering educational programs by assessing the awareness in regard to the role of microbial infectious agents in the etiology of some cancers. Methodology: Data were collected during Cancer Awareness and Educational Programs which were conducted at various places such as schools, clubs, mosques and Government health centres. This survey included 200 participants. Results: Of the persons who responded to the question, whether some viruses, bacteria, parasites and fungi, can cause cancer, 111/134 (82.8%), 105/129 (81.4%), 102/124 (82.8%) and 95/122 (77.8%), respectively, answered yes. Conclusion: The level of cancer awareness is low amongst Sudanese northern state inhabitants even after delivering an educational program.

Use of Mobile Phones and Cancer Risk

  • Ayanda, Olushola S.;Baba, Alafara A.;Ayanda, Omolola T.
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.1
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    • pp.403-406
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    • 2012
  • Mobile phones work by transmitting and receiving radio frequency microwave radiation. The radio frequency (RF) emitted by mobile phones is stronger than FM radio signal which are known to cause cancer. Though research and evidence available on the risk of cancer by mobile phones does not provide a clear and direct support that mobile phones cause cancers. Evidence does not also support an association between exposure to radio frequency and microwave radiation from mobile phones and direct effects on health. It is however clear that lack of available evidence of cancer as regards the use of mobile phone should not be interpreted as proof of absence of cancer risk, so that excessive use of mobile phones should be taken very seriously and with caution to prevent cancer.

Concurrent Weekly Cisplatin Versus Triweekly Cisplatin with Radiotherapy in the Treatment of Cervical Cancer: A Meta-analysis Result

  • Hu, Yan;Cai, Zhi-Qiang;Su, Xiao-Yan
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.9
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    • pp.4301-4304
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    • 2012
  • Aims: To evaluate the adverse effect and survival outcome of weekly and triweekly cisplatin with radiotherapy in treatment of cervical cancer. Methods: After an extensive literature search between 1995-2011, we analyzed 7 studies to compare weekly cisplatin and triweekly cisplatin combined radiotherapy. Results: Our analysis established that weekly cisplatin has a lower risk of hematologic toxicity than triweekly cisplatin with concurrent radiotherapy in the treatment of cervical cancer. However, there were no differences in progression free survival and overall survival between weekly cisplatin and triweekly cisplatin (p>0.05). Conclusions: Weekly cisplatin combined with concurrent radiation has lower risk in hematologic toxicity than triweekly cisplatin, but does not improve survival. Triweekly cisplatin treatment has longer intervals and is therefore more convenient. Clinicians and patients can choose either weekly cisplatin or triweekly cisplatin combined radiotherapy for cervical cancer.

Molecular Involvement and Prognostic Importance of Fms-like Tyrosine Kinase 3 in Acute Myeloid Leukemia

  • Shahab, Sadaf;Shamsi, Tahir S.;Ahmed, Nuzhat
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.9
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    • pp.4215-4220
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    • 2012
  • AML (Acute myeloid leukemia) is a form of blood cancer where growth of myeloid cells occurs in the bone marrow. The prognosis is poor in general for many reasons. One is the presence of leukaemia-specific recognition markers such as FLT3 (fms-like tyrosine kinase 3). Another name of FLT3 is stem cell tyrosine kinase-1 (STK1), which is known to take part in proliferation, differentiation and apoptosis of hematopoietic cells, usually being present on haemopoietic progenitor cells in the bone marrow. FLT3 act as an independent prognostic factor for AML. Although a vast literature is available about the association of FLT3 with AML there still is a need of a brief up to date overview which draw a clear picture about this association and their effect on overall survival.

No Association between Egg Intake and Prostate Cancer Risk: A Meta-analysis

  • Xie, Bo;He, Huadong
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.9
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    • pp.4677-4681
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    • 2012
  • Objective: Egg consumption has been suggested to increase the risk of colorectal and some other cancers. The present study summarized and quantified the current evidence relating dietary intake of eggs and prostate cancer. Materials and methods: Literature searches were conducted to identify peer-reviewed manuscripts published up to July 2012. Twenty manuscripts from nine cohort studies and 11 case-control studies were identified. Summary risk estimates with 95% confidence intervals (CIs) were calculated for case-control and cohort studies separately. Results: Neither the case-control not the cohort studies showed any association of prostate cancer incidence with egg consumption (case-control studies: odds ratio 1.09, 95% CI 0.86-1.31; cohort studies: relative risk 0.97, 95% CI 0.97-1.07). The results were consistent in subgroup analysis. Furthermore, no association was observed between egg consumption and prostate cancer-specific mortality. Conclusions: Our analyses provided no evidence of a significant influence of egg consumption on prostate cancer incidence and mortality. However, more studies, particularly large prospective studies, are needed.

Use of Complementary and Alternative Medicine Among Breast Cancer Survivors in Taiwan

  • Wang, Hsiu-Ho;Chung, Ue-Lin
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.9
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    • pp.4789-4792
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    • 2012
  • Aims: The purpose of this study was to investigate complementary and alternative medicine use among breast cancer survivors in Taiwan. Materials and Methods: This study employed a descriptive research design approach to detail the CAM use among the target population. Convenience sampling was used along with a structured questionnaire. Results: A total of 230 breast cancer survivors completed the use CAM scale. Prayer, reading books, taking antioxidants, eating various grains, and maintaining a vegetarian diet proved to be the five most frequently used CAM practices among patients in our study. More than 50.0% of the participants reported praying occasionally. More than 40.0% of participants read books occasionally, and 38.7% stated that they occasionally take antioxidants. Conclusions: These results provide more insight into CAM use for nurses who care for breast cancer patients.

Current Status of Knowledge, Attitude and Practice (KAP) and Screening for Cervical Cancer in Countries at Different Levels of Development

  • Raychaudhuri, Sreejata;Mandal, Sukanta
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.9
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    • pp.4221-4227
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    • 2012
  • Cancer of the uterine cervix is a worldwide menace taking innumerable womens' lives. The literature is vast and a large number of studies have been conducted in this field. Analyses have shown significant differences exist in terms of screening and HPV testing facilities among high income and low to middle income countries. In addition, acute lack of awareness and knowledge among the concerned population is particularly noted in rural areas of the low income countries. A detailed review of Indian case studies revealed that early age of marriage and childbirth, multiparity, poor personal hygiene and low socio-economic status among others are the principal risk factors for this disease. This review concludes that a two pronged strategy involving strong government and NGO action is necessary to minimize the occurrence of cervical cancer especially in low and medium income countries.

Omics of Cancer

  • Bhati, Aniruddha;Garg, H.;Gupta, A.;Chhabra, H.;Kumari, A.;Patel, T.
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.9
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    • pp.4229-4233
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    • 2012
  • With the advances in modern diagnostic expertise for cancer, certain approaches allowing scanning of the complete genome and the proteome are becoming very useful for researchers. These high throughput techniques have already proven power, over traditional detection methods, in differentiating disease sub-types and identifying specific genetic events during progression of cancer. This paper introduces major branches of omics-technology and their applications in the field of cancer. It also addresses current road blocks that need to be overcome and future possibilities of these methods in oncogenic detection.

Microsatellite Instability of Nuclear and Mitochondrial DNAs in Gastric Carcinogenesis

  • Lee, Jae-Ho;Kim, Dae-Kwang
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.19
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    • pp.8027-8034
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    • 2014
  • Genetic instability contributes to the development and progression of gastric cancer, one of the leading causes of cancer death worldwide. Microsatellite instability (MSI) has been hypothesized to be involved in carcinogenesis, althgough its mechanisms and exact roles in gastric cancer remain largely unknown. Our aim was to identify associated clinicopathological characteristics and prognostic value of MSI in gastric cancer and precancerous lesions including gastritis, metaplasia, dysplasia, and adenoma. Because mitochondrial DNA has a different genetic system from nuclear DNA, the results of both nuclear MSI and mitochondrial MSI in gastric cancer were reviewed. This review provides evidence that genetic instability of nuclear and mitochondrial DNAs contributes to early stages of gastric carcinogenesis and suggests possible roles in predicting prognosis.