Displaying publications 1 - 20 of 501 in total

  1. Mohamad M, Kok HS
    Asian Pac. J. Cancer Prev., 2019 May 25;20(5):1427-1432.
    PMID: 31127903
    Objective: This study aims to investigate the public pattern in seeking breast cancer screening information in
    Malaysia using Google Trends. Methods: The Google Trends database was evaluated for the relative Internet search
    popularity of breast cancer and screening-related search terms from 2007 to 2018. Results: Result showed downward
    trends in breast cancer search, whereas mammogram and tomosynthesis search fluctuated consistently. A significant
    increment was found during Pink October month. Breast cancer search term achieved the highest popularity in the east
    coast of Malaysia with [x2 (5, N=661) = 110.93, P<0.05], whereas mammogram attained the highest search volume in
    central Malaysia [x2 (4, N=67) = 18.90, P<0.05]. The cross-correlation for breast cancer was moderate among northern
    Malaysia, Sabah, and Sarawak (0.3 ≤ rs ≤ 0.7). Conclusion: Public interest trend in breast cancer screening is strongly
    correlated with the breast cancer awareness campaign, Pink October. Breast cancer screening should be promoted in
    the rural areas in Malaysia.
  2. Hartono RK, Hamid SA, Hafizurrachman M
    Asian Pac. J. Cancer Prev., 2019 May 25;20(5):1403-1408.
    PMID: 31127899
    Background: The incident of malignant cancer due to smoking habit becomes a public health problem especially in the developing countries. Active smokers neglect to stop smoking even though various studies proved that smoking increases the risk of cancer. While, previous studies have assessed the incident risk of cancer but have not performed the validity of the measurement. The aim of this study is to know the number of cigarettes that contribute to the incidence of malignant cancer.
    Methods: A study with retrospective cohort design has been conducted by using a set of public data of Indonesia Family Life Survey (IFLS) in 2007 and 2014. All active smokers (n= 748) who were in good health condition in 2007, were traced in 2014 and then being diagnosed with cancer with considering age, gender, healthy eating habit, and regular physical activity. Data has been analysed by using logistic regression by performing Adjusted Risk Ratio (ARR) and the result of validity measurement.
    Results: The incident of malignant cancer in 2014 were skin, liver, stomach and oral cavity. Smoking 21-30 per day in 2007 were significantly increased risk of having malignant cancer in 2014 at ARR: 6.88; SE:6.13 with the accuracy were 93.8%. The risk and accuracy were higher if smoke >30 cigarettes per day (ARR:7.523; SE:7.019; accuracy 95.5%). This study also found that the risk of cancer was significantly increase with age (99% CI; ARR: 1.065; SE: 0.026).
    Conclusions: Cigarette smoking behaviour increased the risk any types incident of cancer. Total number >20 cigarettes smoked per day contributes to the incidence of malignant cancer.
  3. Mohammed Basabaeen AA, Abdelgader EA, Babekir EA, Abdelrahim SO, Eltayeb NH, Altayeb OA, et al.
    Asian Pac. J. Cancer Prev., 2019 May 25;20(5):1579-1585.
    PMID: 31128065
    Objective: This study aimed at exploring the association of TP53 72Arg/Pro polymorphism and Risk of Chronic
    Lymphocytic Leukemia and to assess the correlation between TP53 72Arg/Pro polymorphism and clinical parameter,
    hematological profile and some biological prognostic markers among Sudanese patients with chronic lymphocytic
    leukemia. Methods: A case-control study was conducted in Khartoum state, Sudan, during the period from April 2017 to
    April 2018, involved 110 B-CLL patients and 80 healthy volunteers as a control group. Physical examination, Complete
    Blood Count and Immunophenotype were performed in all patients to confirm the diagnosis. Clinical staging such as
    Rai and Binet were studied. CD38 and ZAP70 were performed by Flow Cytometry. Blood samples were collected from
    all participants; DNA was extracted by using ANALYTIKJENA Blood DNA Extraction Kit (Germany) and analyzed
    TP53 codon 72Arg/Pro Polymorphism by using AS-PCR. The statistical analysis was performed using SPSS version
    23.0 software (Chicago, IL, USA). Results: the Arg/Pro was the most frequent genotype in B-CLL patients(50%),
    followed by Arg/Arg (25.5%) and Pro/Pro (24.5%), whereas in healthy control group Arg/Pro was the most frequent
    (47.5%), followed by Arg/Arg (45%) and Pro/Pro (7.5%). Our data indicate a higher frequency of homozygous Pro/
    Pro in the B-CLL patients as compared to controls with an OR of 4.01 for the Pro/Pro genotype and lower frequency
    of Arg/Arg genotype in CLL patients as compared to controls with an OR of .42 for the Arg/Arg genotype. Also, the
    Pro allele showed higher risk than Arg allele (P value=0.000, OR 2.23, 95% CI=1.45-3.41). No significant association
    between gender, clinical staging systems (Rai, Binet), biological prognostic markers (CD38 expression or ZAP70
    expression), and TP53 codon 72Arg/Pro polymorphisms, except Arg/Arg genotype tended to be associated with younger
    age (P =0.04). Conclusion: Our data suggested that Pro/Pro genotype contribute to increased susceptibility to B-Chronic
    Lymphocytic Leukemia risk in our population tenfold higher than those had Arg/Arg genotype.
  4. Roslan NH, Makpol S, Mohd Yusof YA
    Asian Pac. J. Cancer Prev., 2019 May 25;20(5):1309-1319.
    PMID: 31127882
    BACKGROUND: Colorectal cancer (CRC) is one of the major causes of morbidity and mortality. According to National Cancer Registry, the incidence of colorectal cancer in Peninsular Malaysia increases with age. The incidence is highest among Chinese population but lower among Indians and Malays. Many reviews have suggested that obesity may be associated with a higher risk (>50%) of colorectal cancer.
    METHODS: This study collects a comprehensive data from the literature review available from respective journals on dietary intervention and the chemo-protective mechanisms of a few natural resources in obesity -associated colon cancer based on previous and current studies.
    RESULTS: In obesity-associated colon cancer, the genes of interest and pathways that are mainly involved include NFκB, P13K/Akt, and MAPK pathways, and FTO, leptin, Cyclin D, MMPs, and STAT3 genes. Dietary modification is one of the alternative steps in early prevention of colon cancer. It has been proposed that the components present in certain foods may have the ability to protect against many diseases including the prevention of cancer.
    CONCLUSION: There are many factors that lead to obesity-associated colon cancer and the mechanisms behind it is still undergoing intensive research. This review aims to scrutinize research as well as reviews that have been previously reported on obesity associated colorectal cancer and the beneficial effects of including antioxidants-rich foods such as vegetables and fruits in the diet to reduce the risk of obesity associated colorectal cancer.
    KEYWORDS: Obesity; colon cancer; pathways; natural phytochemicals
  5. Abdullah NN, Idris IB, Shamsuddin K, Abdullah NMA
    Asian Pac. J. Cancer Prev., 2019 Apr 29;20(4):1191-1197.
    PMID: 31030494
    Objective: This study examined the quality of life (QOL) of caregivers for gastrointestinal (GI) cancer patients, and
    associated factors. Methods: A cross-sectional study was conducted at three referral hospitals in Klang Valley, Malaysia.
    A total of 323 pairs of patients and caregivers from the oncology units of these hospitals completed questionnaires
    in Malay. The QOL of caregivers was measured using The Malay Caregiver Quality of Life questionnaire. The
    independent variables were caregiver and patient factors, care-related factors, the Caregiver Strain Index-Malay, and
    the Multidimensional Scale of Perceived Social Support-Malay. Simple and multiple linear regression analyses were
    performed to determine the factors associated with the QOL. Variables with p < 0.05 were considered significant in the
    multiple analyses. Results: Female caregivers were 68.1% of the total, and 46.4% caregivers were spouses to cancer
    patients. Their mean age was 44.50 (13.29) years old. About 51.7% were of Malay ethnicity. The mean score for QOL
    was 80.17 (21.58). Being a male caregiver (beta = 5.165, p = 0.011) and of Indian ethnicity (beta = -9.163, p = 0.001)
    were strongly associated with caregiver QOL. Male patients contributed higher QOL scores for the caregivers compared
    to female patients. There was an inverse relationship among caregiving strain, duration of caregiving, and caregiver
    QOL. Conclusion: The identification of factors that affect QOL will allow healthcare providers to develop appropriate
    interventions. It is important that caregivers be in good health so as not to compromise the care they provide to their
  6. Mohd Isa SA, Md Salleh MS, Ismail MP, Hairon SM
    Asian Pac. J. Cancer Prev., 2019 Apr 29;20(4):1081-1087.
    PMID: 31030477
    Background: Cervical cancer is a preventable disease caused by human papillomaviruses. It is the third most
    common cancer to occur in women of reproductive age. The ADAM9 protein plays a role in basement membrane
    degradation and tumour metastasis in certain types of tumour. Thus, it has the potential to become a new targeted
    therapy. The objective of this study was to investigate ADAM9 expression in cervical cancer and to determine the
    factors associated with ADAM9-positive expression. Methods: This cross-sectional study was conducted in Hospital
    Universiti Sains Malaysia (HUSM) Kelantan, Malaysia from December 2010 to December 2012. Histological slides
    obtained from 95 cervical cancer cases diagnosed and/or treated in HUSM from 2000 to 2010 were analysed. The
    ADAM9 immunostain was then performed on the paraffin blocks. The statistical data entry and analysis were done
    using SPSS version 18.0. Multiple logistic regression analysis was performed to determine the factors associated with
    ADAM9-positive expression. Result: Of the 95 cervical cancer patients included in the study, 72 (75.8%) patients showed
    positive ADAM9 expression. The mean age of the patients was 53.89 (10.83) years old. Squamous cell carcinoma was
    the most common type of cervical cancer (n = 67, 70.5%). Factors that showed a statistically significant association
    with ADAM9-positive expression were tumour size (adjusted odds ratio [adj. OR]: 1.08; 95% confidence interval
    [CI]: 1.02, 1.13; p = 0.004), distant metastasis (adj. OR: 12.82; 95% CI: 1.91, 86.13; p = 0.009) and the histological
    type of cervical cancer (i.e. squamous cell carcinoma) (adj. OR: 7.39; 95% CI: 1.42, 38.51; p = 0.017). Conclusion:
    The ADAM9 immunostain was consistently positive in malignant cells. Thus, ADAM9 expression can be used as a
    prognostic/therapeutic indicator in aiding clinician decision-making regarding patient treatment (targeted therapy).
  7. Goud EVSS, Malleedi S, Ramanathan A, Wong GR, Hwei Ern BT, Yean GY, et al.
    Asian Pac. J. Cancer Prev., 2019 Mar 26;20(3):935-941.
    PMID: 30912418
    Background: Interleukin-10 (IL10) genotypes have been closely correlated to the susceptibility for oral squamous cell
    carcinoma. More than half of oral cancers in the world occur in Asia with estimated 168,850 new cases were diagnosed
    in this geographical region alone. Considering the rising numbers of oral cancer cases in Malaysia, association of IL10
    A1082G gene polymorphism was correlated. Methodology: 41 oral squamous cell carcinoma (OSCC) cases and 48
    healthy controls of comparable age, gender, and with habits like smoking, alcohol consumption and betel quid chewing
    were selected. In this case-control study, samples were collected from the Oral Cancer Research and Coordinating
    Centre (OCRCC), Faculty of Dentistry, University of Malaya, Malaysia. Genotyping conditions were evaluated by
    polymerase chain reaction and restriction fragment length polymorphism (PCR-RFLP). The PCR products were subjected
    to digestion by MnlI enzyme (NEB, UK) to screen for the IL10 A-1082G. Digested DNA products were analyzed by
    electrophoresis on 4% (w/v) agarose gel, stained with ethidium bromide and imaged under UV illumination. Chi-square
    test and Fisher’s Exact test were used in statistical analysis. Results: AG genotypes were present in 81.3% and 86.0% of
    healthy control and OSCC cases respectively (OR=0.468, 95% CI=0.133-1.653). No significant association was found
    between IL10 A1082G polymorphism with risk habits, clinico-pathological parameters and 5-years overall survival.
    The findings also show no significant correlation between the IL10 genotype and features of OSCC within the case
    group as measured by tumor size, lymph node involvement, stage, invasive front, grading, depth, pattern of invasion.
    Conclusion: This study suggests that functional polymorphism AG of IL10 A1082G may have no influence with OSCC
    susceptibility. However, further investigation with larger sample sizes can be conducted to provide additional evidence
    to support the lack of association of IL10 A1082G polymorphism in oral cancer.
  8. Ali- Saeed R, Alabsi AM, Ideris A, Omar AR, Yusoff K, Ali AM
    Asian Pac. J. Cancer Prev., 2019 Mar 26;20(3):757-765.
    PMID: 30909682
    Aim: Newcastle disease virus (NDV) is a member of genus Avulavirus within the family Paramyxoviridae. Interest
    of using NDV as an anticancer agent has arisen from its ability to kill tumor cells with limited toxicity to normal cells.
    Methods: In this investigation, the proliferation of brain tumor cell line, glioblastoma multiform (DBTRG.05MG)
    induced by NDV strain AF2240 was evaluated in-vitro, by using MTT proliferation assay. Furthermore, Cytological
    observations were studied using fluorescence microscopy and transmission electron microscopy, DNA laddering in
    agarose gel electrophoresis assay used to detect the mode of cell death and analysis of the cellular DNA content by
    flowcytometery. Results: MTT proliferation assay, Cytological observations using fluorescence microscopy and
    transmission electron microscopy show the anti-proliferation effect and apoptogenic features of NDV on DBTRG.05MG.
    Furthermore, analysis of the cellular DNA content showed that there was a loss of treated cells in all cell cycle phases
    (G1, S and G2/M) accompanied with increasing in sub-G1 region (apoptosis peak). Conclusion: It could be concluded
    that NDV strain AF2240 is a potent antitumor agent that induce apoptosis and its cytotoxicity increasing while increasing
    of time and virus titer.
  9. Haron NH, Md Toha Z, Abas R, Hamdan MR, Azman N, Khairuddean M, et al.
    Asian Pac. J. Cancer Prev., 2019 Feb 26;20(2):601-609.
    PMID: 30806066
    Objective: This study was conducted to investigate the antiproliferative activity of extracts of Clinacanthus nutans
    leaves against human cervical cancer (HeLa) cells. Methods: C. nutans leaves were subjected to extraction using 80%
    methanol or water. The methanol extract was further extracted to obtain hexane, dichloromethane (DCM), and aqueous
    fractions. The antiproliferative activity of the extracts against HeLa cells was determined. The most cytotoxic extract
    was furthered analyzed by apoptosis and cell cycle assays, and the phytochemical constituents were screened by gas
    chromatography-mass spectrometry (GC-MS). Results: All of the extracts were antiproliferative against HeLa cells, and
    the DCM fraction had the lowest IC50 value of 70 μg/mL at 48 h. Microscopic studies showed that HeLa cells exposed
    to the DCM fraction exhibited marked morphological features of apoptosis. The flow cytometry study also confirmed
    that the DCM fraction induced apoptosis in HeLa cells, with cell cycle arrest at the S phase. GC-MS analysis revealed
    the presence of at least 28 compounds in the DCM fraction, most of which were fatty acids. Conclusion: The DCM
    fraction obtained using the extraction method described herein had a lower IC50 value than those reported in previous
    studies that characterized the anticancer activity of C. nutans against HeLa cells.
  10. Mat Zin AA, Zulkarnain S
    Asian Pac. J. Cancer Prev., 2019 Feb 26;20(2):321-325.
    PMID: 30803189
    Glioma is the commonest primary intracranial tumour and it has been the most predominant tumour in many studies.
    It accounts for 24.7% of all primary brain tumour and 74.6% of malignant brain tumour. Intraoperative diagnosis
    plays a crucial role in determining the patient management. Frozen section has been the established technique in
    providing rapid and accurate intraoperative diagnosis. However due to some disadvantages like ice crystal artefact,
    high expenditure and requirement of skilled technician, there is increase usage of cytology smear either replacing or
    supplementing frozen section technique. The aim of this review is to determine the diagnostic accuracy of cytology
    smear and frozen section in glioma and to see whether there is significant difference between those techniques. The
    overall diagnostic accuracy for frozen section in glioma ranging from 78.4% to 95% while for cytology smear, the
    diagnostic accuracy ranging from 50% to 100%. Based on certain literatures, no statistically difference was observed
    in diagnostic accuracy of cytology smear and frozen section. Thus, cytology smear provides an alternative method in
    establishing intraoperative diagnosis. Both cytology smear and frozen section are complimentary to each other. It is
    recommended to use both techniques to improve the diagnostic accuracy in addition with adequate knowledge, clinical
    history, neuroimaging and intraoperative findings.
  11. Zakaria KN, Amid A, Zakaria Z, Jamal P, Ismail A
    Asian Pac. J. Cancer Prev., 2019 Feb 26;20(2):563-567.
    PMID: 30803221
    Problem statement: Clinicanthus nutans has been used by Malaysian since long time ago. It is used to treat many diseases including cancer. Many studies carried out on its crude extract but no clear report on the specific secondary metabolites responsible for its nature in treating selected diseases.
    Objective: This study aims to confirm the practice carried out by many people on the usage of Clinicanthus nutans in treating cancer.
    Methods: C. nutans leaves were extracted by methanol. Thin layer chromatography was used to identify the suitable solvent for fractions separation. The fractions were then separated at larger volume using gravity column chromatography. Each fraction was tested on its anti-proliferative activity on Hep-G2 liver cancer cells by MTT assay. The phytochemical screening was carried out to identify the bioactive compound based on qualitative analysis.
    Results: The fraction 2 (F2) of C. nutans showed the lowest IC50 value of 1.73 μg/ml against Hep-G2 cancer cells, and it is identified as triterpenes.
    Conclusion: The fraction F2 identified as triterpenes isolated from C. nutans has potential as an anti-proliferative agent against liver cancer.
  12. Haron NH, Mohamad Hanif EA, Abdul Manaf MR, Yaakub JA, Harun R, Mohamed R, et al.
    Asian Pac. J. Cancer Prev., 2019 Feb 26;20(2):509-517.
    PMID: 30803214
    Introduction: Microsatellite instability (MSI) is a hallmark of defective DNA mismatch repair (MMR) of genes
    especially MLH1 and MSH2. It is frequently involved in the carcinogenesis of various tumours including gastric
    cancer (GC). However, MSI in GCs have not been reported in Malaysia before. Objective: This study was conducted
    to determine the microsatellite instability (MSI) status in gastric cancer by microsatellite analysis, sequencing, its
    association with MLH1 and MSH2 protein expression and H.pylori infection by immunohistochemistry. Method:
    A total of 60 gastric cancer cases were retrieved. DNA was extracted from paired normal and tumour tissues while
    MLH1 and MSH2 protein expression as well as H. pylori status were determined by IHC staining. For microsatellite
    analysis, polymerase chain reaction (PCR) was performed for paired tissue samples using a panel of five microsatellite
    markers. MSI-positive results were subjected for DNA sequencing to assess mutations in the MLH1 and MSH2 genes.
    Results: Microsatellite analysis identified ten MSI positive cases (16.7%), out of which only six cases (10.3%) showed
    absence of MLH1 (n=3) or MSH2 (n=3) protein expression by IHC. The most frequent microsatellite marker in MSI
    positive cases was BAT26 (90%). Nine of ten MSI positive cases were intestinal type with one diffuse and all were
    located distally. H. pylori infection was detected in 13 of 60 cases (21.7%) including in three MSI positive cases. All
    these results however were not statistically significant. Our sequencing data displayed novel mutations. However these
    data were not statistically correlated with expression levels of MLH1 and MSH2 proteins by IHC. This may be due to
    small sample size to detect small or moderately sized effects. Conclusion: The frequency of MSI in this study was
    comparable with published results. Determination of affected MMR genes by more than two antibodies may increase
    the sensitivity of IHC to that of MSI analysis.
  13. Mohd Norsuddin N, Mello-Thoms C, Reed W, Lewis S
    Asian Pac. J. Cancer Prev., 2019 Feb 26;20(2):537-543.
    PMID: 30803217
    Rationale and objectives: Target recall rates are often used as a performance indicator in mammography screening
    programs with the intention of reducing false positive decisions, over diagnosis and anxiety for participants. However,
    the relationship between target recall rates and cancer detection is unclear, especially when readers are directed to
    adhere to a predetermined rate. The purpose of this study was to explore the effect of setting different recall rates on
    radiologist’s performance. Materials and Methods: Institutional ethics approval was granted and informed consent
    was obtained from each participating radiologist. Five experienced breast imaging radiologists read a single test set
    of 200 mammographic cases (20 abnormal and 180 normal). The radiologists were asked to identify each case that
    they required to be recalled in three different recall conditions; free recall, 15% and 10% and mark the location of any
    suspicious lesions. Results: Wide variability in recall rates was observed when reading at free recall, ranging from
    18.5% to 34.0%. Readers demonstrated significantly reduced performance when reading at prescribed recall rates,
    with lower sensitivity (H=12.891, P=0.002), case location sensitivity (H=12.512, P=0.002) and ROC AUC (H=11.601,
    P=0.003) albeit with an increased specificity (H=12.704, P=0.002). However, no significant changes were evident in
    lesion location sensitivity (H=1.982, P=0.371) and JAFROC FOM (H=1.820, P=0.403). Conclusion: In this laboratory
    study, reducing the number of recalled cases to 10% significantly reduced radiologists’ performance with lower detection
    sensitivity, although a significant improvement in specificity was observed.
  14. Mohamad Pakarul Razy NH, Wan Abdul Rahman WF, Win TT
    Asian Pac. J. Cancer Prev., 2019 Jan 25;20(1):277-282.
    PMID: 30678450
    Introduction: Vascular endothelial growth factor (VEGF) is an angiogenic factor that plays an important role in
    thyroid cancer. VEGF is known to have high affinity to VEGF receptors such as VEGFR-1 (Flt-1) and VEGFR-2 (KDR).
    Papillary thyroid carcinoma (PTC) is the most common thyroid cancer and studies showed the increasing incidence of
    PTC arising in nodular hyperplasia. Targeted therapy on these growth factors and receptors are used in management
    of both differentiated and undifferentiated thyroid carcinoma. This study aims to determine the expression of VEGF
    and VEGF receptors (VEGFR) in thyroid nodular hyperplasia and PTC. Methods: A cross-sectional study based on
    paraffinized archival tissue blocks of 113 nodular hyperplasias and 67 PTC from the thyroidectomy specimens in
    the year of 2003 to 2014. The tissue sections were then stained by immunohistochemistry for VEGF, VEGFR-1 and
    VEGFR-2. The lymph node involvement and extrathyroid extension also were determined. Results: The mean age of
    PTC patients was 44.7±15.8 years and nodular hyperplasia were 42.2±13.6 years. There was a statistical difference
    of VEGFR-1 (p=0.028) and VEGFR-2 (p=0.003) expression between nodular hyperplasia and PTC. However, no
    significant difference of VEGF expression (p=0.576) between both diseases. Co-expression of VEGF and VEGFR-1
    was significant in both nodular hyperplasia (p=0.016) and PTC (p=0.03), meanwhile no relevant relationship for VEGF
    and VEGFR-2 expression (p>0.05). No significant association (p>0.05) between lymph node status and extrathyroid
    extension with age groups, gender, VEGF and VEGFR expression. Conclusions: VEGF, VEGFR-1 and VEGFR-2
    showed overexpression in both nodular hyperplasia and PTC. The expression of VEGFR-1 and VEGFR-2 are more
    significant in PTC with relevant co-expression of VEGF and VEGFR-1. Therefore, the inhibition of VEGFR offers a
    promising prospect for tumour management in thyroid carcinoma.
  15. Sul ‘ain MD, Zakaria F, Johan MF
    Asian Pac. J. Cancer Prev., 2019 Jan 25;20(1):185-192.
    PMID: 30678430
    Background: Cervical cancer is one of the most commonly diagnosed neoplasms and a leading cause of cancer
    death among females worldwide. Limitations with conventional medical treatments have driven researchers to
    search for alternative approaches using natural products. This study aimed to detemine potential anti-proliferative
    effects of methanol and water extracts of Pyrrosia piloselloides (P. piloselloides) on the HeLa cell line. Methods:
    3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assays were performed to determine IC50
    concentrations and apoptosis analysis was by flow cytometry. To identify chemical compounds in the extracts, gas
    chromatography-mass spectrometry (GC-MS) was employed. Results: P. piloselloides methanol extracts (PPME) showed
    antiproliferative effects on HeL awith an IC50 of 16.25μg/mL while the P. piloselloides water extract (PPWE) was without
    influence. Neither extract showed any significant effects on apoptosis. GC-MS analysis, revealed 5-hydroxymethylfurfural
    (23.1%), allopurinol (8.66%) and 3, 5-dihydroxy-6-methyl-2,3-dihydropyran-4-one (7.41%) as major components in
    the PPME, while sulfolan-3-ol (10.1%), linoleic acid (9.06%) and β-sitosterol acetate (7.98%) predominated in the
    PPWE case. Conclusion: This first study of P. piloselloides showed PPME to exert potent anti-proliferative effect on
    HeLa cell lines. Further research now needs to be performed to establish the mechanisms of inhibition.
  16. Ibrahim IK, Hassan R, Ali EW, Omer A
    Asian Pac. J. Cancer Prev., 2019 Jan 25;20(1):41-44.
    PMID: 30677867
    Background: In recent years, a somatic point mutation in the Janus Kinase 2 (JAK2) gene (1849 G→T, V617F)
    has been reported to occur in over 90% of patients with polycythemia vera (PV). Another JAK2 mutation in exon 12
    had been described and shown capable of activating erythropoietin signaling pathways. Objective: In this study, we
    aimed to determine the frequency of Jak2 mutations (JAK2V617F and JAK2 exon 12) as well as their relationships
    with hematological parameters in Sudanese patients with myeloproliferative disorders (MPD). A comparison with
    findings of published studies from other geographic regions was included. Materials and Methods: From each of
    a total of 83 polycythaemia patients, six milliliters (ml) of venous blood were collected and processed for molecular
    analysis and measurement of serum erythropoietin level by enzyme-linked immunoassay (ELISA). The JAK2 V617F
    mutation was determined using an allele-specific competitive blocker (ACB) -PCR assay and High Resolution Melting
    (HRM) analysis was applied for the JAK2 exon 12 mutation. Results: According to patients’ history and the results
    for EPO levels, nine (10.7 %) out of 83 patients were found to have secondary polycythaemia and 74 (89.3%) PV. The
    overall frequency of the 2 JAK2 mutations was 94.6% in our Sudanese PV patients, JAK2V617F being found in 91%
    and JAK2 exon 12 mutations in 8.1%.Conclusion: In summary JAK2 V617F and JAK2 exon 12 mutations are very
    common in Sudanese PC cases.
  17. Lim KG, Palayan K
    Asian Pac. J. Cancer Prev., 2019 Jan 25;20(1):5-11.
    PMID: 30677863
    Incidence rates of gastric cancer in Malaysia has declined by 48% among males and 31% among females in the latest
    reporting period of 13 years. Malays used to have age-standardized-rates only a fifth of those in Chinese and Indians,
    but the incidence among them is slightly rising even as the rates drop in the other races. Besides ethnicity, a low level
    of education, high intake of salted fish and vegetables, H pylori infection and smoking are risk factors. Consumption
    of fresh fruit and vegetable is protective. Variation in the strains of H pylori infection affect gastric cancer risk, with
    hspEAsia isolates among Chinese appearing linked to a high incidence than with hpAsia2 or hpEurope strains among
    Indians and Malays. It was reported in the 1980s that only about 3% of patients presented with early gastric cancer, but
    more encouraging rates reaching 27% with Stage 1 and 2 disease have been reported in the twenty-first century from
    leading centres. More tumours occur in the distal stomach except in Kelantan, where the incidence is low and main site
    is the cardia. Prompt endoscopy is advocated and open access, with direct referrals, to such services using a weighted
    scoring system should be more utilized. In view of the high rate of late disease laparoscopic staging unnecessary
    laparotomy needs to be avoided. Late presentation of gastric cancer however, is still predominant and the mortality to
    incidence ratio is relatively high. Besides seeking to reduce risk factors and achieve early detection, implementation
    of improved care for patients with late disease must be promoted in Malaysia.
  18. Mat Yusoff Y, Abu Seman Z, Othman N, Kamaluddin NR, Esa E, Zulkiply NA, et al.
    Asian Pac. J. Cancer Prev., 2018 Dec 25;19(12):3317-3320.
    PMID: 30583336
    Objective: Chronic Myeloid Leukemia (CML) is caused by a reciprocal translocation between chromosomes 9
    and 22, t(9;22) (q34;q11) which encodes for the BCR-ABL fusion protein. Discovery of Imatinib Mesylate (IM) as
    first line therapy has brought tremendous improvement in the management of CML. However, emergence of point
    mutations within the BCR-ABL gene particularly T315I mutation, affects a common BCR-ABL kinase contact residue
    which impairs drug binding thus contribute to treatment resistance. This study aims to investigate the BCR-ABL T315I
    mutation in Malaysian patients with CML. Methods: A total of 285 patients diagnosed with CML were included in this
    study. Mutation detection was performed using qualitative real-time PCR (qPCR). Results: Fifteen out of 285 samples
    (5.26%) were positive for T315I mutations after amplification with real-time PCR assay. From the total number of
    positive samples, six patients were in accelerated phase (AP), four in chronic phase (CP) and five in blast crisis (BC).
    Conclusion: Mutation testing is recommended for choosing various tyrosine kinase inhibitors (TKIs) to optimize
    outcomes for both cases of treatment failure or suboptimal response to imatinib. Therefore, detection of T315I mutation
    in CML patients are clinically useful in the selection of appropriate treatment strategies to prevent disease progression.
  19. Cader RA, Mei Yee AK, Yassin A, Ahmad I, Haron SN
    Asian Pac. J. Cancer Prev., 2018 Dec 25;19(12):3551-3555.
    PMID: 30583682
    Background: Malignancies are among the leading causes of death in Systemic Lupus Erythematosus (SLE)
    patients with studies reporting a higher prevalence of malignancy in SLE patients compared to the general population.
    We wanted to determine the frequency of cancer in a cohort of SLE patients and identify its associated risk factors.
    Methods: Cross-sectional study involving SLE patients attending the nephrology outpatient clinic, Universiti
    Kebangsaan Malaysia Medical Centre between January and June 2014. Results: We recruited 228 patients (207 female,
    21 male), aged 40.48 ± 12.86 years with mean SLE duration of 11.65 ± 6.46 years. Majority (87%) had lupus nephritis
    and were in remission with a median SLEDAI score 2 (0, 14). Majority (89%) were on corticosteroid with either a
    steroid sparing agent like mycophenolate mofetil (15.4%), azathioprine (36.8%) or ciclosporin (15.4%). One hundred
    and sixty (70.2%) patients were either receiving or had received intravenous cyclophosphamide with median dose
    of 5,173.6 ± 3,242.4 mg. Seven female patients were diagnosed with cancer during the course of their SLE with 56
    (34-78) years being median age at malignancy and SLE duration of 4 (0-12) years. Majority (5/7) had lupus nephritis
    and all patients a median dose of prednisolone 10 (2.5, 10) mg with 10 (4-24) years of steroids. Two patients had a
    family history of cancer with majority developing cancer after the diagnosis of SLE. Two patients received intravenous
    cyclophosphamide prior to the development of cancer for their SLE compared to overall cohort of 160. Three patients
    had colorectal cancer, 2 had cervical cancer, 1 had breast cancer, and one patient had germ cell tumour and one thyroid
    cancer. All patients had their cancer successful treated with no signs of recurrence. Conclusion: We found a lower
    occurrence of cancer in our SLE patients as compared with the reported literature.
  20. Quach DT, Vilaichone RK, Vu KV, Yamaoka Y, Sugano K, Mahachai V
    Asian Pac. J. Cancer Prev., 2018 Dec 25;19(12):3565-3569.
    PMID: 30583684
    Background: Helicobacter pylori (H. pylori) infection is currently considered as an infectious disease irrespective of
    symptoms and stage of disease. This study aimed to survey the impact of H. pylori infection and the current management
    approaches in Southeast Asian countries. Materials and methods: This is a survey among 26 experts from 9 Southeast
    Asian countries (Cambodia, Indonesia, Laos, Malaysia, Myanmar, Philippines, Singapore, Thailand and Vietnam),
    who attended a meeting to develop the ASEAN consensus on H. pylori management in November 2015. Results: The
    prevalence of H. pylori varied significantly from 20% to 69% among countries, highest in Myanmar and lowest in
    Malaysia. The rate of H. pylori infection in patients with gastritis, peptic ulcer disease and gastric cancer (GC) also
    varied significantly, not only among countries but also among regions within the same country. The most common
    method for H. pylori diagnosis before treatment was rapid urease test, followed by urea breath test. In multi-ethnic
    countries, some ethnic groups including Chinese, Batak and Minahasanese were considered as having higher risk of
    GC. There have been no national screening programs for GC in all countries, and a majority of patients with GC were
    diagnosed in advanced stages with very poor 5-year survival. Conclusions: The prevalence of H. pylori infection and
    its infection rates in related gastrointestinal diseases were significantly different among Southeast Asian countries. The
    prognosis of patients with GC in the region was very poor. The result of this survey is a platform for future international
    and regional research collaboration.
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