Browse publications by year: 2013

  1. Yahaya B, McLachlan G, Collie DD
    ScientificWorldJournal, 2013;2013:871932.
    PMID: 23533365 DOI: 10.1155/2013/871932
    The response of S-phase cells labelled with bromodeoxyuridine (BrdU) in sheep airways undergoing repair in response to endobronchial brush biopsy was investigated in this study. Separate sites within the airway tree of anaesthetised sheep were biopsied at intervals prior to pulse labelling with BrdU, which was administered one hour prior to euthanasia. Both brushed and spatially disparate unbrushed (control) sites were carefully mapped, dissected, and processed to facilitate histological analysis of BrdU labelling. Our study indicated that the number and location of BrdU-labelled cells varied according to the age of the repairing injury. There was little evidence of cell proliferation in either control airway tissues or airway tissues examined six hours after injury. However, by days 1 and 3, BrdU-labelled cells were increased in number in the airway wall, both at the damaged site and in the regions flanking either side of the injury. Thereafter, cell proliferative activity largely declined by day 7 after injury, when consistent evidence of remodelling in the airway wall could be appreciated. This study successfully demonstrated the effectiveness of in vivo pulse labelling in tracking cell proliferation during repair which has a potential value in exploring the therapeutic utility of stem cell approaches in relevant lung disease models.
    MeSH terms: Animals; Bromodeoxyuridine/chemistry; Infusions, Intravenous; Regeneration*; Respiratory System/cytology; Respiratory System/injuries*; Respiratory System/metabolism; Staining and Labeling; Time Factors; Respiratory Mucosa/cytology*; Respiratory Mucosa/metabolism; Models, Animal; Sheep, Domestic; Cell Proliferation*; Airway Remodeling*
  2. Leong XF, Rais Mustafa M, Jaarin K
    PMID: 23533459 DOI: 10.1155/2013/120732
    Hypertension increases the risk for a variety of cardiovascular diseases, including stroke, coronary artery disease, heart failure, and peripheral vascular disease. The increase in oxidative stress has been associated with the pathogenesis of hypertension. Increase of blood pressure is due to an imbalance between antioxidants defence mechanisms and free radical productions. Excessive production of reactive oxygen species reduces nitric oxide bioavailability leading to an endothelial dysfunction and a subsequent increase in total peripheral resistance. Hypertension can cause few symptoms until it reaches the advanced stage and poses serious health problems with lifelong consequences. Hypertensive patients are required to take drugs for life to control the hypertension and prevent complications. Some of these drugs are expensive and may have adverse reactions. Hence, it is timely to examine scientifically, complimentary therapies that are more effective and with minimal undesirable effects. Nigella sativa (NS) and its active constituents have been documented to exhibit antioxidant, hypotensive, calcium channel blockade and diuretic properties which may contribute to reduce blood pressure. This suggests a potential role of NS in the management of hypertension, and thus more studies should be conducted to evaluate its effectiveness.
    MeSH terms: Antioxidants; Biological Availability; Blood Pressure; Blood Pressure Determination; Coronary Artery Disease; Diuretics; Free Radicals; Heart Failure; Humans; Hypertension; Nitric Oxide; Vascular Resistance; Calcium Channels; Peripheral Vascular Diseases; Reactive Oxygen Species; Oxidative Stress; Stroke; Nigella sativa
  3. Yong YK, Tan JJ, Teh SS, Mah SH, Ee GC, Chiong HS, et al.
    PMID: 23533485 DOI: 10.1155/2013/462751
    Clinacanthus nutans Lindau leaves (CN) have been used in traditional medicine but the therapeutic potential has not been explored for cancer prevention and treatment. Current study aimed to evaluate the antioxidant and antiproliferative effects of CN, extracted in chloroform, methanol, and water, on cancer cell lines. Antioxidant properties of CN were evaluated using DPPH, galvinoxyl, nitric oxide, and hydrogen peroxide based radical scavenging assays, whereas the tumoricidal effect was tested on HepG2, IMR32, NCL-H23, SNU-1, Hela, LS-174T, K562, Raji, and IMR32 cancer cells using MTT assay. Our data showed that CN in chloroform extract was a good antioxidant against DPPH and galvinoxyl radicals, but less effective in negating nitric oxide and hydrogen peroxide radicals. Chloroform extract exerted the highest antiproliferative effect on K-562 (91.28 ± 0.03%) and Raji cell lines (88.97 ± 1.07%) at 100  μ g/ml and the other five cancer cell lines in a concentration-dependent manner, but not on IMR-32 cells. Fourteen known compounds were identified in chloroform extract, which was analysed by gas chromatography-mass spectra analysis. In conclusion, CN extracts possess antioxidant and antiproliferative properties against cultured cancer cell lines, suggesting an alternate adjunctive regimen for cancer prevention or treatment.
    MeSH terms: Methanol; Antioxidants; Benzhydryl Compounds; Chloroform; Chromatography, Gas; HeLa Cells; Humans; Hydrogen Peroxide; Medicine, Traditional; Nitric Oxide; Plant Extracts; Water; Plant Leaves; K562 Cells
  4. Chong NJ, Aziz Z
    PMID: 23533507 DOI: 10.1155/2013/627182
    We aimed to assess the efficacy of Centella asiatica for improvement of the signs and symptoms of chronic venous insufficiency (CVI). We searched 13 electronic databases including the Cochrane Central Register of Controlled Trials for randomised controlled trials assessing the efficacy of Centella asiatica for CVI. Two review authors independently selected studies, assessed the risks of bias of included studies and extracted data. The treatment effects of similar studies were pooled whenever appropriate. Eight studies met the inclusion criteria. The pooling of data of similar studies showed that Centella asiatica significantly improved microcirculatory parameters such as transcutaneous partial pressure of CO2 and O2, rate of ankle swelling and venoarteriolar response. Three out of the eight studies did not provide quantitative data. However, these studies reported that patients treated with Centella asiatica showed significant improvement in CVI signs such as leg heaviness, pain and oedema. Our results show that Centella asiatica may be beneficial for improving signs and symptoms of CVI but this conclusion needs to be interpreted with caution as most of the studies were characterised by inadequate reporting and thus had unclear risks of bias, which may threaten the validity of the conclusions.
    MeSH terms: Ankle; Carbon Dioxide; Edema; Humans; Microcirculation; Pain; Partial Pressure; Triterpenes; Venous Insufficiency; Centella
  5. Ho YF, Karsani SA, Yong WK, Abd Malek SN
    PMID: 23533528 DOI: 10.1155/2013/857257
    Researchers are looking into the potential development of natural compounds for anticancer therapy. Previous studies have postulated the cytotoxic effect of helichrysetin towards different cancer cell lines. In this study, we investigated the cytotoxic effect of helichrysetin, a naturally occurring chalcone on four selected cancer cell lines, A549, MCF-7, Ca Ski, and HT-29, and further elucidated its biochemical and molecular mechanisms in human lung adenocarcinoma, A549. Helichrysetin showed the highest cytotoxic activity against Ca Ski followed by A549. Changes in the nuclear morphology of A549 cells such as chromatin condensation and nuclear fragmentation were observed in cells treated with helichrysetin. Further evidence of apoptosis includes the externalization of phosphatidylserine and the collapse of mitochondrial membrane potential which are both early signs of apoptosis. These signs of apoptosis are related to cell cycle blockade at the S checkpoint which suggests that the alteration of the cell cycle contributes to the induction of apoptosis in A549. These results suggest that helichrysetin has great potentials for development as an anticancer agent.
    MeSH terms: Adenocarcinoma; Antineoplastic Agents; Cell Cycle; Chalcone; Chromatin; Humans; Lung Neoplasms; Phosphatidylserines; Apoptosis; HT29 Cells; Chalcones; Membrane Potential, Mitochondrial; MCF-7 Cells; A549 Cells
  6. Mohd Salim RJ, Adenan MI, Amid A, Jauri MH, Sued AS
    Biotechnol Res Int, 2013;2013:137851.
    PMID: 23533781 DOI: 10.1155/2013/137851
    The purpose of the study is to evaluate the relationship between the extraction parameters and the metal chelating activity of Centella asiatica (CA) and Erythroxylum cuneatum (EC). The response surface methodology was used to optimize the extraction parameters of methanolic extract of CA and EC with respect to the metal chelating activity. For CA, Run 17 gave optimum chelating activity with IC50 = 0.93 mg/mL at an extraction temperature of 25°C, speed of agitation at 200 rpm, ratio of plant material to solvent at 1 g : 45 mL and extraction time at 1.5 hour. As for EC, Run 13 with 60°C, 200 rpm, 1 g : 35 mL and 1 hour had metal chelating activity at IC50 = 0.3817 mg/mL. Both optimized extracts were further partitioned using a solvent system to evaluate the fraction responsible for the chelating activity of the plants. The hexane fraction of CA showed potential activity with chelating activity at IC50 = 0.090 and the ethyl acetate fraction of EC had IC50 = 0.120 mg/mL. The study showed that the response surface methodology helped to reduce the extraction time, temperature and agitation and subsequently improve the chelating activity of the plants in comparison to the conventional method.
  7. Abdul Manan H, Yusoff AN, Franz EA, Sarah Mukari SZ
    ISRN Neurol, 2013;2013:892072.
    PMID: 23533806 DOI: 10.1155/2013/892072
    Evidence suggests that cognitive performance deteriorates in noisy backgrounds and the problems are more pronounced in older people due to brain deficits and changes. The present study used functional MRI (fMRI) to investigate the neural correlates of this phenomenon during short-term memory using a forward repeat task performed in quiet (STMQ) and in noise: 5-dB SNR (STMN) on four groups of participants of different ages. The performance of short-term memory tasks was measured behaviourally. No significant difference was found across age groups in STMQ. However, older adults (50-65 year olds) performed relatively poorly on the STMN. fMRI results on the laterality index indicate changes in hemispheric laterality in the superior temporal gyrus (STG), Heschl's gyrus (HG), and cerebellum, and a leftward asymmetry in younger participants which changes to a more rightward asymmetry in older participants. The results also indicate that the onset of the laterality shift varies from one brain region to another. STG and HG show a late shift while the cerebellum shows an earlier shift. The results also reveal that noise influences this shifting. Finally, the results support the hypothesis that functional networks that underlie STG, HG, and cerebellum undergo reorganization to compensate for the neural deficit/cognitive decline.
  8. Yong LS, Koh KC
    Case Rep Infect Dis, 2013;2013:562175.
    PMID: 23533853 DOI: 10.1155/2013/562175
    Concurrent infections with more than one etiological agent can result in an illness with overlapping symptoms, resulting in a situation where the diagnosis and management of such a patient could be challenging. We report a case of vivax malaria in a patient who was also serologically positive for leptospirosis and dengue.
  9. Mohd-Tahir F, Siti-Raihan I, Wan Hazabbah WH
    Case Rep Ophthalmol Med, 2013;2013:158961.
    PMID: 23533876 DOI: 10.1155/2013/158961
    Aim. To report a rare case of arteriovenous malformation in temporal lobe presenting as contralateral orbital symptoms mimicking carotid-cavernous fistula. Method. Interventional case report. Results. A 31-year-old Malay gentleman presented with 2-month history of painful progressive exophthalmos of his left eye associated with recurrent headache, diplopia, and reduced vision. Ocular examination revealed congestive nonpulsating 7 mm exophthalmos of the left eye with no restriction of movements in all direction. There was diplopia in left lateral gaze. Left IOP was elevated at 29 mmHg. Left eye retinal vessels were slightly dilated and tortuous. CT scan was performed and showed right temporal arteriovenous malformation with a nidus of 3.8 cm × 2.5 cm with right middle cerebral artery as feeding artery. There was dilated left superior ophthalmic vein of 0.9 mm in diameter with enlarged left cavernous sinus. MRA and carotid angiogram confirmed right temporal arteriovenous malformation with no carotid-cavernous fistula. Most of the intracranial drainage was via left cavernous sinus. His signs and symptoms dramatically improved following successful embolisation, completely resolved after one year. Conclusion. Intracranial arteriovenous malformation is rarely presented with primary ocular presentation. Early intervention would salvage the eyes and prevent patients from more disaster morbidity or fatality commonly due to intracranial haemorrhage.
    MeSH terms: Adult; Angiography; Cavernous Sinus; Intracranial Arteriovenous Malformations; Diplopia; Drainage; Exophthalmos; Eye; Headache; Humans; Malaysia; Temporal Lobe; Tomography, X-Ray Computed; Vision, Low; Carotid-Cavernous Sinus Fistula; Intracranial Hemorrhages; Middle Cerebral Artery
  10. Wong MS, Sidik SM, Mahmud R, Stanslas J
    Clin Exp Pharmacol Physiol, 2013 May;40(5):307-19.
    PMID: 23534409 DOI: 10.1111/1440-1681.12083
    Tumour invasion and metastasis have been recognized as major causal factors in the morbidity and mortality among cancer patients. Many advances in the knowledge of cancer metastasis have yielded an impressive array of attractive drug targets, including enzymes, receptors and multiple signalling pathways. The present review summarizes the molecular pathogenesis of metastasis and the identification of novel molecular targets used in the discovery of antimetastatic agents. Several promising targets have been highlighted, including receptor tyrosine kinases, effector molecules involved in angiogenesis, matrix metalloproteinases (MMPs), urokinase plasminogen activator, adhesion molecules and their receptors, signalling pathways (e.g. phosphatidylinositol 3-kinase, phospholipase Cγ1, mitogen-activated protein kinases, c-Src kinase, c-Met kinases and heat shock protein. The discovery and development of potential novel therapeutics for each of the targets are also discussed in this review. Among these, the most promising agents that have shown remarkable clinical outcome are anti-angiogenic agents (e.g. bevacizumab). Newer agents, such as c-Met kinase inhibitors, are still undergoing preclinical studies and are yet to have their clinical efficacy proven. Some therapeutics, such as first-generation MMP inhibitors (MMPIs; e.g. marimastat) and more selective versions of them (e.g. prinomastat, tanomastat), have undergone clinical trials. Unfortunately, these drugs produced serious adverse effects that led to the premature termination of their development. In the future, third-generation MMPIs and inhibitors of signalling pathways and adhesion molecules could form valuable novel classes of drugs in the anticancer armamentarium to combat metastasis.
    MeSH terms: Animals; Antineoplastic Agents/pharmacology*; Antineoplastic Agents/therapeutic use; Drug Industry/methods; Humans; Neoplasm Invasiveness/prevention & control; Neoplasm Metastasis/drug therapy*; Neoplasm Metastasis/prevention & control; Neoplasm Proteins/antagonists & inhibitors*; Neoplasm Proteins/metabolism; Neovascularization, Pathologic/drug therapy; Neovascularization, Pathologic/metabolism; Neovascularization, Pathologic/prevention & control; Signal Transduction/drug effects; Drugs, Investigational/pharmacology*; Drugs, Investigational/therapeutic use; Angiogenesis Inhibitors/pharmacology; Angiogenesis Inhibitors/therapeutic use; Biomedical Research/trends; Molecular Targeted Therapy/trends
  11. Al-Naggar RA, Kadir SY
    Asian Pac J Cancer Prev, 2013;14(1):103-9.
    PMID: 23534705
    BACKGROUND: The objective of this study is to determine knowledge about lung cancer among secondary school male teachers in Kudat, Sabah, Malaysia.

    MATERIALS AND METHODS: A cross-sectional study was conducted among three secondary schools located in Kudat district, Sabah, Malaysia during the period from June until September 2012. The protocol of this study was approved by ethics committee of Management and Science University, Malaysia. The aims were explained and a consent form was signed by each participant. Respondents were chosen randomly from each school with the help of the headmasters. Self-administrated questionnaires, covering socio-demographic characteristics and general knowledge of lung cancer, were distributed. Once all 150 respondents completed the questionnaire, they passed it to their head master for collecting and recording. All the data were analyzed using Statistical Package for the Social Sciences (SPSS) version 13. ANOVA and t-test were applied for univariate analysis; and multiple linear regression for multivariate analysis.

    RESULTS: A total of 150 male secondary school teachers participated in this study. Their mean age was 35.6 ∓ 6.5 (SD); maximum 50 and minimum 23 years old. More than half of the participants were Malay and married (52%, 79%; respectively). Regarding the knowledge about lung cancer, 57.3% of the participants mentioned that only males are affected by lung cancer. Some 70.7% mentioned that lung cancer can be transmitted from one person to another. More than half (56.7%) reported that lung cancer is not the leading cause of death in Malaysian males. As for risk factors, the majority reported that family history of lung cancer is not involved. However, 91.3% were aware that cigarettes are the main risk factor of lung cancer and more than half (52%) believed that second-hand smoking is one of the risk factor of lung cancer. More than half (51.3%) were not aware that asbestos, ionizing radiation and other cancer causing substances are risk factors for lung cancer. Quitting smoking, avoiding second-hand smoking and avoiding unnecessary x-ray image of the chest (53.3%, 96.0%, 87.3%; respectively) are the main preventive measures mentioned by the participants. For the factors that influence the participants knowledge, univariate and multivariate analysis showed that only race was significant.

    CONCLUSIONS: Overall, the knowledge of school male teachers about lung cancer was low. However, few items were scored high: cigarettes are the main risk factor; avoiding second-hand smoking; and avoiding x-rays. Interventions to increase lung cancer awareness are needed to improve early detection behavior. Increase the price of pack of cigarettes to RM 20 and banning smoking in public places such as restaurants are highly recommended as primary preventive measures.

    MeSH terms: Adult; Analysis of Variance; Asbestos/adverse effects; Cross-Sectional Studies; Faculty*; Humans; Health Knowledge, Attitudes, Practice*; Lung Neoplasms/etiology*; Malaysia; Male; Middle Aged; Surveys and Questionnaires; Radiation, Ionizing; Risk Factors; Schools; Smoking/adverse effects; Tobacco Smoke Pollution/adverse effects; Multivariate Analysis; Linear Models; Young Adult
  12. Maskor NA, Krauss SE, Muhamad M, Nik Mahmood NH
    Asian Pac J Cancer Prev, 2013;14(1):153-8.
    PMID: 23534716
    This paper reports on part of a large study to identify competencies of oncology nurses in Malaysia. It focuses on oncology nurses' communications-related competency. As an important cancer care team member, oncology nurses need to communicate effectively with cancer patients. Literature shows that poor communication can make patients feel anxious, uncertain and generally not satisfied with their nurses' care. This paper deliberates on the importance of effective communication by oncology nurses in the context of a public hospital. Four focus group discussions were used in this study with 17 oncology/cancer care nurses from Malaysian public hospitals. The main inclusion criterion was that the nurses had to have undergone a post-basic course in oncology, or have work experience as a cancer care nurse. The findings indicated that nurses do communicate with their patients, patients' families and doctors to provide information about the disease, cancer treatment, disease recurrence and side effects. Nurses should have good communication skills in order to build relationships as well as to provide quality services to their patients. The paper concludes by recommending how oncology nursing competencies can be improved.
    MeSH terms: Adult; Clinical Competence; Communication*; Female; Hospitals, Public; Humans; Malaysia; Middle Aged; Neoplasms/nursing; Nurse-Patient Relations*; Focus Groups; Physician-Nurse Relations*
  13. Yasin SM, Ismail N, Noor NM, Mohd Azman MS, Taib H, Jusop JM, et al.
    Asian Pac J Cancer Prev, 2013;14(1):303-8.
    PMID: 23534742
    BACKGROUND: Medical students' views may provide some direction for future policy considerations.

    AIM: The aim of this study was to assess gender differences in future doctors' receptiveness to currently implemented anti-smoking messages and the effectiveness of those messages.

    MATERIALS AND METHODS: We administered a questionnaire to all students at a medical university in Malaysia, asking how frequently they noted anti- smoking policies, anti-smoking campaigns, and anti-smoking messages in schools. In addition, the questionnaire investigated most effective methods to convey these messages.

    RESULTS: A total of 522 (59.7%) students responded. Students were least likely to approve of total bans on cigarettes and increasing the price of cigarettes, and most likely to approve of bans on use of cigarettes in public places and sales to individuals less than 16 years old. Approval of total bans on cigarettes was more common in female students than in males OR=0.39 (95%CI: 0.18- 0.86). Furthermore, compared to the female students, the male students thought that printed media; OR=2.32 (95%CI: 1.31-4.10), radio; OR=1.93 (95%CI: 1.15-3.22) and the internet; OR=1.96 (95%CI: 1.15-3.33) were very effective at delivering anti-smoking messages.

    CONCLUSIONS: Gender differences existed in the future doctors' perception of the effectiveness of anti-smoking initiatives. Taking this gender difference into account may increase the receipt of anti-smoking messages in adolescents.
    MeSH terms: Attitude; Cross-Sectional Studies; Female; Health Education/methods*; Humans; Malaysia; Male; Mass Media; Persuasive Communication; Surveys and Questionnaires; Sex Factors*; Smoking/legislation & jurisprudence; Students, Medical/psychology*; Confidence Intervals; Odds Ratio; Internet
  14. Yusuf A, Ahmad Z, Keng SL
    Asian Pac J Cancer Prev, 2013;14(1):435-40.
    PMID: 23534769
    BACKGROUND: Breast cancer is the leading cause of cancer-related death among women in Malaysia. A diagnosis is very stressful for women, affecting all aspects of their being and quality of life. As such, there is little information on quality of life of women with breast cancer across the different ethnic groups in Malaysia. The purpose of this study was to examine the quality of life in Malay and Chinese women newly diagnosed with breast cancer in Kelantan.

    MATERIALS AND METHODS: A descriptive study involved 58 Malays and 15 Chinese women newly diagnosed with breast cancer prior to treatment. Quality of life was measured using the Malay version of the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ-C30) and its breast-specific module (QLQ-BR23). Socio-demographic and clinical data were also collected. All the data were analyzed using SPSS version 20.0.

    RESULTS: Most of the women were married with at least a secondary education and were in late stages of breast cancer. The Malay women had lower incomes (p=0.046) and more children (p=0.001) when compared to the Chinese women. Generally, both the Malay and Chinese women had good functioning quality-of-life scores [mean score range: 60.3-84.8 (Malays); 65.0-91.1 (Chinese)] and global quality of life [mean score 60.3, SD 22.2 (Malays); mean score 65.0, SD 26.6 (Chinese)]. The Malay women experienced more symptoms such as nausea and vomiting (p=0.002), dyspnoea (p=0.004), constipation (p<0.001) and breast-specific symptoms (p=0.041) when compared to the Chinese.

    CONCLUSIONS: Quality of life was satisfactory in both Malays and Chinese women newly diagnosed with breast cancer in Kelantan. However, Malay women had a lower quality of life due to high general as well as breast-specific symptoms. This study finding underlined the importance of measuring quality of life in the newly diagnosed breast cancer patient, as it will provide a broader picture on how a cancer diagnosis impacts multi-ethnic patients. Once health care professionals understand this, they might then be able to determine how to best support and improve the quality of life of these women during the difficult times of their disease and on-going cancer treatments.

    MeSH terms: Adult; Breast Neoplasms/complications; Breast Neoplasms/ethnology*; Breast Neoplasms/psychology*; China/ethnology; Constipation/etiology; Cross-Sectional Studies; Diarrhea/etiology; Fatigue/etiology; Female; Humans; Sleep Initiation and Maintenance Disorders/etiology; Malaysia; Middle Aged; Nausea/etiology; Pain/etiology; Quality of Life/psychology*; Surveys and Questionnaires; Socioeconomic Factors; Stress, Psychological/ethnology*; Vomiting/etiology; Young Adult
  15. Zainal NZ, Shuib N, Bustam AZ, Sabki ZA, Guan NC
    Asian Pac J Cancer Prev, 2013;14(1):463-8.
    PMID: 23534774 DOI: 10.7314/apjcp.2013.14.1.463
    BACKGROUND: Body image dissatisfaction among breast cancer survivors has been associated with psychological stress resultant from breast cancer and resultant surgery. This study aimed to examine the psychometric properties of the Malay Version of the Breast-Impact of Treatment Scale (MVBITS) and to investigate the associations of retained factors with the Hospital Anxiety and Depression Scale (HADS) and the Rosenberg Self-Esteem Scale (RSES).

    MATERIALS AND METHODS: The MVBITS was 'forward-backward' translated from English to Malay and then administered to 70 female breast cancer patients who came to the Oncology Clinic of University Malaya Medical Centre, Kuala Lumpur, Malaysia to undergo chemotherapy. Principal component analysis (PCA) with varimax rotation was performed to explore the factor structure of the MVBITS. Associations of retained factors were estimated with reference to Spearman correlation coefficients.

    RESULTS: The internal consistency reliability of MVBITS was good (Cronbach's alpha 0.945) and showed temporal stability over a 3-week period. Principal component analysis suggested two factors termed as 'Intrusion' and 'Avoidance' domains. These factors explained 70.3% of the variance. Factor 1 comprised the effects of breast cancer treatment on the emotion and thought, while Factor 2 informed attempts to limit exposure of the body to self or others. The Factor 1 of MVBITS was positively correlated with total, depression and anxiety sub-scores of HADS. Factor 2 was positively correlated with total and anxiety sub-scores of HADS. MVBITS was also positively correlated with the RSES scores.

    CONCLUSIONS: The results showed that the Malay Version of Breast-Impact of Treatment Scale possesses satisfactory psychometric properties suggesting that this instrument is appropriate for assessment of body change stress among female breast cancer patients in Malaysia.
    MeSH terms: Adult; Antineoplastic Agents/adverse effects; Anxiety/etiology; Anxiety/psychology; Body Image/psychology*; Breast Neoplasms/drug therapy; Breast Neoplasms/psychology*; Breast Neoplasms/surgery*; Cross-Sectional Studies; Depression/etiology; Depression/psychology; Female; Humans; Malaysia; Middle Aged; Psychometrics; Surveys and Questionnaires*; Self Concept; Reproducibility of Results; Mastectomy, Segmental; Statistics, Nonparametric; Principal Component Analysis
  16. Keat CH, Phua G, Abdul Kassim MS, Poh WK, Sriraman M
    Asian Pac J Cancer Prev, 2013;14(1):469-73.
    PMID: 23534775
    BACKGROUND: The purpose of this study is to examine the risk of uncontrolled chemotherapy-induced nausea and vomiting (CINV) among patients receiving low emetogenic chemotherapy (LEC) with and without granisetron injection as the primary prophylaxis in addition to dexamethasone and metochlopramide.

    MATERIALS AND METHODS: This was a single-centre, prospective cohort study. A total of 96 patients receiving LEC (52 with and 42 without granisetron) were randomly selected from the full patient list generated using the e-Hospital Information System (e-His). The rates of complete control (no CINV from days 1 to 5) and complete response (no nausea or vomiting in both acute and delayed phases) were identified through patient diaries which were adapted from the MASCC Antiemesis Tool (MAT). Selected covariates including gender, age, active alcohol consumption, morning sickness and previous chemotherapy history were controlled using the multiple logistic regression analyses.

    RESULTS: Both groups showed significant difference with LEC regimens (p<0.001). No differences were found in age, gender, ethnic group and other baseline characteristics. The granisetron group indicated a higher complete response rate in acute emesis (adjusted OR: 0.1; 95%CI 0.02-0.85; p=0.034) than did the non-granisetron group. Both groups showed similar complete control and complete response rates for acute nausea, delayed nausea and delayed emesis.

    CONCLUSIONS: Granisetron injection used as the primary prophylaxis in LEC demonstrated limited roles in CINV control. Optimization of the guideline-recommended antiemetic regimens may serve as a less costly alternative to protect patients from uncontrolled acute emesis.

    MeSH terms: Adult; Aged; Antiemetics/therapeutic use*; Antineoplastic Agents/adverse effects; Dexamethasone/therapeutic use; Drug Therapy, Combination; Female; Humans; Male; Metoclopramide/therapeutic use; Middle Aged; Nausea/chemically induced; Nausea/prevention & control*; Neoplasms/drug therapy*; Vomiting/chemically induced; Vomiting/prevention & control*; Multivariate Analysis; Logistic Models; Granisetron/therapeutic use*
  17. Mohammadi S, Sulaiman S, Koon PB, Amani R, Hosseini SM
    Asian Pac J Cancer Prev, 2013;14(1):481-7.
    PMID: 23534778
    Following breast cancer diagnosis, women often attempt to modify their lifestyles to improve their health and prevent recurrence. These behavioral changes typically involve diet and physical activity modification. The aim of this study was to determine association between healthy eating habits and physical activity with quality of life among Iranian breast cancer survivors. A total of 100 Iranian women, aged between 32 to 61 years were recruited to participate in this cross-sectional study. Eating practices were evaluated by a validated questionnaire modified from the Women's Healthy Eating and Living (WHEL) study. Physical activity was assessed using the International Physical Activity Questionnaire (IPAQ). A standardized questionnaire by the European Organization of Research and Treatment of Cancer Quality of Life and its breast cancer module (EORTC QLQ-C30/+BR-23) were applied to determine quality of life. Approximately 29% of the cancer survivors were categorized as having healthy eating practices, 34% had moderate eating practices and 37% had poor eating practices based on nutrition guidelines. The study found positive changes in the decreased intake of fast foods (90%), red meat (70%) and increased intake of fruits (85%) and vegetables (78%). Generally, breast cancer survivors with healthy eating practices had better global quality of life, social, emotional, cognitive and role functions. Result showed that only 12 women (12%) met the criteria for regular vigorous exercise, 22% had regular moderate-intensity exercise while the majority (65%) had low-intensity physical activity. Breast cancer survivors with higher level of physical activity had better emotional and cognitive functions. Healthy eating practices and physical activity can improve quality of life of cancer survivors. Health care professionals should promote good dietary habits and physical activity to improve survivors' health and quality of life.
    MeSH terms: Adult; Breast Neoplasms/psychology*; Cooking; Cross-Sectional Studies; Feeding Behavior*; Female; Fruit; Humans; Iran; Meat; Middle Aged; Motor Activity*; Quality of Life/psychology*; Surveys and Questionnaires; Vegetables; Survivors/psychology*; Statistics, Nonparametric; Fast Foods
  18. Loo JL, Ang YK, Yim HS
    Asian Pac J Cancer Prev, 2013;14(1):565-70.
    PMID: 23534795 DOI: 10.7314/apjcp.2013.14.1.565
    OBJECTIVES: To describe the development and validation of a cancer awareness questionnaire (CAQ) based on a literature review of previous studies, focusing on cancer awareness and prevention.

    MATERIALS AND METHODS: A total of 388 Chinese undergraduate students in a private university in Kuala Lumpur, Malaysia, were recruited to evaluate the developed self-administered questionnaire. The CAQ consisted of four sections: awareness of cancer warning signs and screening tests; knowledge of cancer risk factors; barriers in seeking medical advice; and attitudes towards cancer and cancer prevention. The questionnaire was evaluated for construct validity using principal component analysis and internal consistency using Cronbach's alpha (α) coefficient. Test-retest reliability was assessed with a 10-14 days interval and measured using Pearson product-moment correlation.

    RESULTS: The initial 77-item CAQ was reduced to 63 items, with satisfactory construct validity, and a high total internal consistency (Cronbach's α=0.77). A total of 143 students completed the questionnaire for the test-retest reliability obtaining a correlation of 0.72 (p<0.001) overall.

    CONCLUSIONS: The CAQ could provide a reliable and valid measure that can be used to assess cancer awareness among local Chinese undergraduate students. However, further studies among students from different backgrounds (e.g. ethnicity) are required in order to facilitate the use of the cancer awareness questionnaire among all university students.
    MeSH terms: Adult; Female; Humans; Health Knowledge, Attitudes, Practice*; Malaysia; Male; Neoplasms/diagnosis; Neoplasms/etiology; Neoplasms/prevention & control*; Surveys and Questionnaires*; Risk Factors; Students*; Reproducibility of Results; Cultural Diversity*; Asian Continental Ancestry Group/ethnology*; Early Detection of Cancer; Young Adult
  19. Akhtari-Zavare M, Juni MH, Said SM, Ismail IZ
    Asian Pac J Cancer Prev, 2013;14(1):57-61.
    PMID: 23534796
    BACKGROUND: Breast cancer is the most common cancer and the second principal cause of cancer deaths among women worldwide, including Malaysia.

    METHODS: A cross-sectional study was carried out among 262 female undergraduate students in University Putra Malaysia using a validated questionnaire which was developed for this study.

    RESULTS: The mean age of respondents was 22∓2.3 years. Most of them were single (83.1%), Malay (42.3%) and 20.7% reported having a family history of breast cancer. Eighty-seven (36.7%) claimed they had practiced BSE. Motivation and self-efficacy of the respondents who performed BSE were significantly higher compared with women who did not (p<0.05).There was no association between BSE practice and demographic details (p<0.05). Logistic regression analysis indicated that women who perceived greater motivation (OR=1.089, 95%CI: 1.016-1.168) and had higher confidence of BSE (OR=1.076, 95%CI: 1.028-1.126) were more likely to perform the screening.

    CONCLUSIONS: The findings show that Malaysian young female's perception regarding breast cancer and the practice of BSE is low. Targeted education should be implemented to improve early detection of breast cancer.
    MeSH terms: Adolescent; Adult; Breast Neoplasms/diagnosis*; Breast Neoplasms/psychology*; Cross-Sectional Studies; Female; Humans; Health Knowledge, Attitudes, Practice*; Malaysia; Motivation; Surveys and Questionnaires; Students/psychology*; Confidence Intervals; Logistic Models; Odds Ratio; Breast Self-Examination/psychology*; Self Efficacy; Young Adult
  20. Keat CH, Sooaid NS, Yun CY, Sriraman M
    Asian Pac J Cancer Prev, 2013;14(1):69-73.
    PMID: 23534806
    BACKGROUND: An increasing trend of cytotoxic drug use, mainly in cancer treatment, has increased the occupational exposure among the nurses. This study aimed to assess the change of nurses' safety-related knowledge as well as attitude levels and subsequently to assess the change of cytotoxic drug handling practices in wards after a series of pharmacist-based interventions.

    MATERIALS AND METHODS: This prospective interventional study with a before and after design requested a single group of 96 nurses in 15 wards actively providing chemotherapy to answer a self-administered questionnaire. A performance checklist was then used to determine the compliance of all these wards with the recommended safety measures. The first and second assessments took 2 months respectively with a 9-month intervention period. Pharmacist-based interventions included a series of technical, educational and administrative support measures consisting of the initiation of closed-system cytotoxic drug reconstitution (CDR) services, courses, training workshops and guideline updates.

    RESULTS: The mean age of nurses was 32.2∓6.19 years. Most of them were female (93.8%) and married (72.9%). The mean knowledge score of nurses was significantly increased from 45.5∓10.52 to 73.4∓8.88 out of 100 (p<0.001) at the end of the second assessment. Overall, the mean practice score among the wards was improved from 7.6∓5.51 to 15.3∓2.55 out of 20 (p<0.001).

    CONCLUSIONS: The pharmacist-based interventions improved the knowledge, attitude and safe practices of nurses in cytotoxic drug handling. Further assessment may help to confirm the sustainability of the improved practices.

    MeSH terms: Adult; Antineoplastic Agents/toxicity*; Attitude of Health Personnel*; Female; Humans; Health Knowledge, Attitudes, Practice*; Malaysia; Male; Neoplasms/drug therapy; Neoplasms/nursing*; Oncology Nursing/education*; Oncology Nursing/standards; Pharmacy Service, Hospital; Hazardous Substances/toxicity*; Occupational Health; Occupational Exposure/adverse effects; Occupational Exposure/prevention & control*; Workplace/standards; Practice Guidelines as Topic; Statistics, Nonparametric; Guideline Adherence; Practice Patterns, Nurses'
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