Displaying publications 241 - 260 of 342 in total

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  1. Mohammad Z, Naing NN, Salleh R, Ahmad N, Hamzah WM, Mahmud R
    PMID: 12118468
    The human immunodeficiency virus (HIV) epidemic has had a profound influence on the epidemiology of tuberculosis (TB). The potential for HIV-associated TB cases to transmit M. tuberculosis and to produce a secondary increase in TB morbidity is unknown. A cross-sectional study was carried out to compare the prevalence of M. tuberculosis infection among the household contacts of HIV-positive and HIV-negative pulmonary tuberculosis (PTB) patients. Records of tuberculin (Mantoux) tests administered during routine contact investigations at the Chest Clinic, Hospital Kota Bharu, from 1999 to 2000 were reviewed. The HIV status of the patients was based on the results of ELISA tests while information on household contacts was gathered during visits to their houses. Ninety-four contacts of 39 HIV-negative patients and 44 contacts of 17 cases of HIV-positive patients were included in this preliminary study. 30% (12/40) of the contacts of HIV-positive PTB had a positive tuberculin compared with 52.8% (47/ 94) of the contacts of HIV-negative patients [OR = 0.41, 95% Confidence interval (CI) 0.17 - 0.97; p = 0.016]. The difference was still significant after performing multivariate logistic regression analysis to adjust for variables associated with infectiousness of TB (adjusted OR = 0.24, 95% CI 0.07 - 0.87; p = 0.03). This study has shown that HIV-infected PTB patients are less infectious to their contacts than HIV-negative patients. The presence of MV in the community may not necessitate a change of the current policy of the management of contacts.
    Study site: Chest Clinic, Hospital Kota Bharu, Kelantan, Malaysia
  2. Ruslan NF, Ahmad N, Abas A, Sanfilippo A, Mahmoud K, Munaim MSA, et al.
    PMID: 39541025 DOI: 10.1007/s11356-024-35406-z
    The escalation of the global population has accelerated the demand for sustainable energy sources such as bioethanol. Traditionally, bioethanol was obtained by the fermentation of sugar from agricultural crops and grains. However, this technique creates serious threats on the global food supplies, thus hindering the commercial production of bioethanol. Therefore, there is a need to develop new technologies and low-cost raw materials in order to ensure that bioethanol is economically comparable to the first generation of bioethanol. Solid-state fermentation (SSF) has been in the limelight within the scientific community because of its efficiency, cost-effectiveness, and promising technology to produce bioethanol. SSF involves the cultivation of microorganisms on a solid substrate in the absence of free-flowing water, which eliminates the need for sugar extraction and reduces wastewater production. This systematic review provides an overview of the applications of SSF in bioethanol production while presenting recent studies and advancements of this technology for producing sustainable and cost-effective bioethanol.
  3. Omar J, Ahmad NS, Che-Soh N, Wan-Azman WN, Yaacob NM, Abdul-Ghani NS, et al.
    Malays Orthop J, 2023 Jul;17(2):62-69.
    PMID: 37583519 DOI: 10.5704/MOJ.2307.010
    INTRODUCTION: Infected diabetic foot ulcers may lead to serious complications if not recognised in the early stage. Diagnosis of infection is particularly challenging at that stage; thus, a sensitive inflammatory biomarker may be helpful. We aimed to evaluate the role of procalcitonin (PCT) as an early biomarker for infected diabetic foot ulcers (IDFU).

    MATERIALS AND METHOD: This cross-sectional study was conducted at Klinik Rawatan Keluarga (KRK), Orthopedic clinic and wards in Hospital Universiti Sains Malaysia (USM) from May 2020 to December 2020. A total of 264 participants were recruited and divided into three groups: 50 diabetic patients with no ulcers (control), 107 patients with non-infected diabetic foot ulcers (NIDFU), and 107 patients with infected diabetic foot ulcers (IDFU). The level of PCT was taken for all patients. Total white count (TWC) and C-reactive protein (CRP) were taken only for IDFU patients. Diagnosis of infection was based on the Infectious Disease Society of America-International Working Group of Diabetic Foot (IDSA-IMWGDF), and the severity of infection was graded according to the Wagner Classification.

    RESULTS: The level of PCT was higher in IDFU than in NIDFU and diabetic patient, with a median (IQR) of 0.355 (0.63) ng/mL, 0.077 (0.15) ng/mL and 0.028 (0.02) ng/mL, respectively. PCT and CRP showed moderate positive correlations in IDFU patients (p<0.001). The sensitivity and specificity were 63.6% and 83.2%, respectively, at the best cut-off at 0.25 ng/mL.

    CONCLUSION: PCT is a valuable biomarker for the diagnosis of infection; however, it adds little value in the early diagnosis of IDFU in view of its low sensitivity.

  4. Massud A, Khan AH, Syed Sulaiman SA, Ahmad N, Shafqat M, Ming LC
    PLoS One, 2023;18(8):e0287966.
    PMID: 37561810 DOI: 10.1371/journal.pone.0287966
    INTRODUCTION: Tuberculosis (TB), a curable and preventable infectious disease, becomes difficult to treat if resistance against most effective and tolerable first line anti-TB drugs is developed. The objective of the present study was to evaluate the treatment outcomes and predictors of poor outcomes among drug-resistant tuberculosis (DR-TB) patients treated at a programmatic management unit of drug resistant tuberculosis (PMDT) unit, Punjab, Pakistan.

    METHODS: This prospective observational study was conducted at a a PMDT unit in Multan, Punjab, Pakistan. A total of 271 eligible culture positive DR-TB patients enrolled for treatment at the study site between January 2016 and May 2017 were followed till their treatment outcomes were recorded. World Health Organization's (WHO) defined criteria was used for categorizing treatment outcomes. The outcomes of cured and treatment completed were collectively placed as successful outcomes, while death, lost to follow-up (LTFU) and treatment failure were grouped as unsuccessful outcomes. Multivariable binary logistic regression analysis was employed for getting predictors of unsuccessful treatment outcomes. A p-value <0.05 was considered statistically significant.

    RESULTS: Of the 271 DR-TB patients analysed, nearly half (51.3%) were males. The patient's (Mean ± SD) age was 36.75 ± 15.69 years. A total of 69% patients achieved successful outcomes with 185 (68.2%) patients being cured and 2 (0.7%) completed therapy. Of the remaining 84 patients with unsuccessful outcomes, 48 (17.7%) died, 2 (0.7%) were declared treatment failure, 34 (12.5%) were loss to follow up. After adjusting for confounders, patients' age > 50 years (OR 2.149 (1.005-4.592) with p-value 0.048 and baseline lung cavitation (OR 7.798 (3.82-15.919) with p-value <0.001 were significantly associated with unsuccessful treatment outcomes.

    CONCLUSIONS: The treatment success rate (69%) in the current study participants was below the target set by WHO (>75%). Paying special attention and timely intervention in patients with high risk of unsuccessful treatment outcomes may help in improving treatment outcomes at the study site.

  5. Tan S, Ismail MAB, Daud TIM, Hod R, Ahmad N
    Indian J Psychiatry, 2023 Sep;65(9):934-940.
    PMID: 37841542 DOI: 10.4103/indianjpsychiatry.indianjpsychiatry_240_23
    INTRODUCTION: Despite the increasing number of mental health professionals in Malaysia, many have yet to receive adequate treatment for common mental illnesses such as depression and anxiety. Coupled with the increasing number of mobile phone users globally, smartphone-based intervention can be a promising mental health intervention. Thus, this study aims to investigate the efficacy of using a smartphone-based mental health application in addition to treatment-as-usual (TAU) in outpatients with depressive and/or anxiety symptoms.

    METHODS: Psychiatric outpatients that fulfill the selection criteria were recruited and randomized into two groups, the intervention group (n = 24) and the control group (n = 24). Those in the intervention group received MoodMission in addition to TAU, while those in the control group received TAU. Patient Health Questionnaire-9 (PHQ-9) and Generalized Anxiety Disorder-7 (GAD-7) scores were assessed at baseline and after four weeks.

    RESULTS: A total of 48 participants were recruited, randomized, and completed the study. Baseline characteristics for both groups were comparable. There is no significant mean difference between-group comparison of PHQ-9 (1.31, 95% CI -1.35, 3.98) and GAD-7 (0.02, 95% CI -2.01, 2.05) scores at four weeks. However, for the intervention group, there was a significant improvement in the PHQ-9 score at four weeks [mean difference 2.58 (95% CI 1.16, 4.01), P = 0.001)].

    CONCLUSION: This study showed no significant improvement in anxiety symptoms after four weeks. Use of smartphone-based mental health applications led to significant reduction of depressive symptoms.

  6. Hii SYF, Zaiful Bahrina NN, Mohd Zaidi MN, Hashim R, Ahmad N
    Eur J Clin Microbiol Infect Dis, 2024 Feb;43(2):373-378.
    PMID: 37999783 DOI: 10.1007/s10096-023-04707-5
    Burkholderia pseudomallei is intrinsically resistant to many antibiotics. This study aimed to assess bacterial colony morphotypes and the validity of using disk diffusion method (DD) to determine antibiotic resistance in Malaysian clinical B. pseudomallei isolates for ceftazidime (CAZ), meropenem (MEM), amoxicillin-clavulanate (AMC) and doxycycline (DOX). DD produced good categorical agreements exhibiting concordance of 100% with reference method, broth microdilution for CAZ and DOX, 98.6% for MEM and 97.2% for AMC. Smooth-centred colonies were most frequently observed. EUCAST DD interpretative criterion is suitable to interpret B. pseudomallei CAZ, MEM, AMC and DOX resistance. Increasing AMC MIC in B. pseudomallei is a concern.
  7. Mohammed Nawi A, Masdor NA, Othman R, Kandayah T, Ahmad N, Safian N
    Asian Pac J Cancer Prev, 2023 Sep 01;24(9):2941-2095.
    PMID: 37774044 DOI: 10.31557/APJCP.2023.24.9.2941
    Prostate cancer (Pca) is one of the most prevalent health conditions affecting men, particularly older men, and cases have increased in recent years.

    OBJECTIVE: This review examined the survival rate and prognostic factors of patients with Pca in Southeast Asia (SEA).

    METHODS: We conducted a systematic search of three databases (PubMed, Scopus, Web of Science) and a manual search until April 1, 2022. The selected papers were evaluated using the Newcastle-Ottawa Quality Assessment Form for Cohort Studies. The review protocol was registered with PROSPERO (CRD42022326521). Pooled prevalence rates were calculated using the programme R version 4.2.1. Heterogeneity was assessed using the I2 statistic and p-value. A narrative approach was used to describe prognostic factors. Studies were selected and finalised based on the review question. The quality of the included studies was assessed.

    RESULTS: A total of 11 studies were included in this review. The 1-, 3-, 5- and 10-year survival rates of SEA Pca cases were 80.8%, 51.9%, 66.1% (range 32.1-100) and 78% (range 55.9-100), respectively. Prognostic factors for Pca were discussed in terms of sociodemographic, disease-related and treatment-related aspects. The predictors of significantly lower survival were age more than 75 years, cancer detected during transurethral resection of the prostate, Gleason score more or equal to eight, high-risk group, metastases and no adjuvant radiotherapy. A meta-analysis on the pooled HR of prostate cancer could not be performed due to the heterogeneity of prognostic factors. The pooled prevalence of localised and metastatic prostate cancer in SEA countries was 39% 95% CI [20-62] and 40% 95% CI [28-53], respectively.

    CONCLUSION: The survival rate in SEA countries can be determined by prognostic factors, which can be divided into sociodemographic, disease-related and treatment-related factors. Therefore, further studies are needed to improve the understanding and treatment of Pca in the region SEA.

  8. Grismer LL, Anuar MSS, Muin MA, Ahmad N, Quah ESH
    Zootaxa, 2023 Oct 10;5353(3):265-275.
    PMID: 38220685 DOI: 10.11646/zootaxa.5353.3.4
    We use data sets from the Cyrtodactylus brevipalmatus group with limited genetic and morphological sampling to demonstrate that not accounting for sampling error may adversely influence decisions regarding species delimitation and diagnosis. Lack of geographic sampling between the endpoints of a species range may recover notable interpopulational genetic differentiation consistent with species-level differentiation. Additionally, small population sample sizes may fail recover statistically different diagnostic morphological differences. Combined, these types of sampling error can produce results seemingly consistent with the recognition of cryptic speciesgenetically delimited populations lacking diagnostic morphological characters. This is the current situation within some lineages of the C. brevipalmatus group whereas in others, sampling error is less problematic and does not jeopardize their taxonomy. We note the potential negative effects for comparative biology as a whole if sampling error is not taken into consideration prior to constructing taxonomies.
  9. Abu Talib R, Idris IB, Sutan R, Ahmad N, Abu Bakar N
    Iran J Public Health, 2018 Nov;47(11):1694-1702.
    PMID: 30581786
    Background: This cross-sectional was aimed to assess the prevalence of pre-pregnancy care services usage and its determinant factors among women of reproductive age in Kedah, Malaysia.

    Methods: Overall, 1347 respondents who attended 24 government health clinics, were chosen using systematic multistage random sampling. A validated self-administered questionnaire which consisted of sections including socio-demographic characteristics, social support, knowledge on pre-pregnancy care, perception on risk of pregnancy, health status, as well as intention and awareness on pre-pregnancy care services were distributed.

    Results: The prevalence of utilization of pre-pregnancy care services was still low i.e. 44.0%. Bivariate and multivariate analysis showed consistent significant level between all factors and pre-pregnancy care usage except for family planning practice. The factors that showed significant difference with the usage of pre-pregnancy care services were age of more than 35 (P<0.001), high education level (P<0.001), non-working mothers (P<0.001), multipara (P=0.001), awareness on the existence of pre-pregnancy care services in government health facilities (P<0.001), intention to use the services (P=0.0030), having medical illness (P=0.005), having social support (P=0.001), high knowledge (P<0.001), and positive perception (P<0.001).

    Conclusion: Low usage of pre-pregnancy care services can be improved through health screening on reproductive-aged women with positive determinant factors at the triage level in integrated clinics. Information and knowledge on pre-pregnancy services should be disseminated among community members through various means including roadshows and pre-wedding workshops.
  10. Yusoff F, Sahril N, Rasidi NM, Zaki NA, Muhamad N, Ahmad N
    Asia Pac J Public Health, 2014 Sep;26(5 Suppl):100S-7S.
    PMID: 25038195 DOI: 10.1177/1010539514542425
    Illicit drug use among adolescents has become a public health issue in Malaysia. This study was from the Global School-Based Student Health Survey (GSHS) and aimed to determine the prevalence of and factors associated with illicit drug use among school-going adolescents in Malaysia. A 2-stage stratified cluster sampling method was used and data were collected via a self-administered questionnaire. A total of 25 507 students participated in the study. The prevalence of adolescents who ever used illicit drugs was 1.7%. Adolescents who ever used illicit drugs were associated with current smoking (adjusted odds ratio [aOR] = 6.99; 95% CI = 5.19, 9.40), current alcohol use (aOR = 4.63; 95% CI = 3.43, 6.26), ever having sex (aOR = 4.76; 95% CI = 3.54, 6.41), truancy (aOR = 1.43; 95% CI = 1.07, 1.90), lack of peer support (aOR = 1.47; 95% CI = 1.07, 2.03), and lack of parental monitoring (aOR = 1.71; 95% CI = 1.22, 2.39). Public health intervention should be addressed to prevent illicit drug used among adolescents.
    Study name: Global School-Based Student Health Survey (GSHS)
  11. Javaid A, Ahmad N, Afridi AK, Basit A, Khan AH, Ahmad I, et al.
    Am J Trop Med Hyg, 2018 06;98(6):1629-1636.
    PMID: 29611497 DOI: 10.4269/ajtmh.17-0936
    To evaluate the predictive value of time to sputum culture conversion (SCC) in predicting cure and factors associated with time to SCC and cure in multidrug-resistant tuberculosis (MDR-TB) patients, a retrospective study was conducted at programmatic management unit of drug resistant tuberculosis (TB), Peshawar. A total of 428 pulmonary MDR-TB patients enrolled at the study site from January 1, 2012 to August 31, 2014 were followed until treatment outcome was recorded. Survival analysis using Cox proportional hazards model and multivariate binary logistic regression were, respectively, used to identify factors associated with time to SCC and cure. A P value < 0.05 was considered statistically significant. Overall, 90.9% patients achieved SCC, and 76.9% were cured. Previous use of second-line drugs (SLDs) (hazard ratio [HR] = 0.637; 95% confidence interval [CI] = 0.429-0.947), ofloxacin resistance (HR = 0.656; 95% CI = 0.522-0.825) and lung cavitation (HR = 0.744; 95% CI = 0.595-0.931) were significantly associated with time to SCC. In predicting cure, sensitivities of SCC at 2, 4, and 6 months were 64.1% (95% CI = 58.69-69.32), 93.0% (95% CI = 89.69-95.52), and 97.6% (95% CI = 95.27-98.94), respectively, whereas specificities were 67.7% (95% CI = 57.53-76.73), 51.5% (95% CI = 41.25-61.68), and 44.4% (95% CI = 34.45-54.78), respectively. Furthermore, patients' age of 41-60 (odds ratio [OR] = 0.202; 95% CI = 0.067-0.605) and > 60 years (OR = 0.051; 95% CI = 0.011-0.224), body weight > 40 kg (OR = 2.950; 95% CI = 1.462-5.952), previous SLD use (OR = 0.277; 95% CI = 0.097-0.789), lung cavitation (OR = 0.196; 95% CI = 0.103-0.371) and ofloxacin resistance (OR = 0.386; 95% CI = 0.198-0.749) were significantly associated with cure. Association of SCC with cure was substantially stronger at 6 months (OR = 32.10; 95% CI = 14.34-71.85) than at 4 months (OR = 14.13; 95% CI = 7.92-25.21). However in predicting treatment outcomes, the combined sensitivity and specificity of SCC at 4 months was comparable to SCC at 6 months. Patients with risk factors for delayed SCC were also at high risk of unsuccessful outcomes.
  12. Leong KN, Chow TS, Wong PS, Hamzah SH, Ahmad N, Ch'ng CC
    Am J Trop Med Hyg, 2015 Sep;93(3):539-41.
    PMID: 26055742 DOI: 10.4269/ajtmh.15-0246
    We report the largest outbreak of brucellosis in Penang, Malaysia. Brucellosis is not endemic in this region. The index case was a 45-year-old goat farm owner presented with 3 weeks of fever, headache, severe lethargy, poor appetite, and excessive sweating. He claimed to have consumed unpasteurized goat's milk that he had also sold to the public. Tests were negative for tropical diseases (i.e., dengue fever, malaria, leptospirosis and scrub typhus) and blood culture showed no growth. Based on epidemiological clues, Brucella serology was ordered and returned positive. Over a period of 1 year, 79 patients who had consumed milk bought from the same farm were diagnosed with brucellosis. Two of these patients were workers on the farm. Four laboratory staff had also contracted the disease presumably through handling of the blood samples. The mean duration from onset of symptoms to diagnosis was 53 days with a maximum duration of 210 days. A combination treatment of rifampin and doxycycline for 6 weeks was the first line of treatment in 90.5% of patients. One-third of the patients had sequelae after recovering and 21% had a relapse. We highlight the importance of Brucellosis as a differential diagnosis when a patient has unexplained chronic fever.
  13. Hin HS, Ramalingam R, Chunn KY, Ahmad N, Ab Rahman J, Mohamed MS
    Am J Trop Med Hyg, 2012 Oct;87(4):737-40.
    PMID: 22826499 DOI: 10.4269/ajtmh.2012.12-0165
    Co-infection of melioidosis and leptospirosis is uncommon. We report here four such cases, confirmed by blood culture for melioidosis and blood polymerase-chain reaction for leptospirosis, which occurred among rescuers involved in a search and rescue operation for a young man who was suspected to have drowned in Lubuk Yu, a recreational forest in Pahang, Malaysia. Despite treatment, three of the patients died from the co-infection.
  14. Mohd Nawawi MSA, Faid MS, Saadon MHM, Wahab RA, Ahmad N
    Heliyon, 2024 Oct 30;10(20):e38668.
    PMID: 39640732 DOI: 10.1016/j.heliyon.2024.e38668
    This paper investigates the procedure for determining the new Hijri Month between Brunei, Indonesia, Malaysia, and Singapore. It endeavours to understand the reason for dissimilarity in terms of practice between these four nations in commencing Hijri Month of Ramadan, Shawal, and Zulhijjah despite sharing the same lunar crescent visibility criterion. This study is conducted through the examination of literature with regards to regulations of the lunar crescent visibility criterion between these countries. The study finds out that the determination of the Hijri months, particularly Ramadan, Shawal, and Zulhijjah, varies among Malaysia, Indonesia, Brunei, and Singapore despite their shared criteria for the rest of the lunar calendar. Brunei relies on moon sightings coordinated by the Chief Syar'ie Judge and various governmental departments, culminating in approval by the Sultan. Indonesia conducts a comprehensive Sidang Isbat conference involving numerous religious and scientific bodies, with the final decision made by the Ministry of Religious Affairs. Malaysia's process involves Department of Islamic Development Malaysia (JAKIM) and multiple expert panels, with the final announcement made by the Keeper of the Ruler's Seal after royal consent. Singapore employs purely astronomical calculations using Unofficial Meeting of Religious Affairs Ministers of Brunei, Indonesia, Malaysia and Singapore (MABIMS) criteria without moon sightings due to environmental constraints. These countries' methods reflect their unique institutional, cultural, and religious contexts. Factors influencing these differences include reference points for lunar calculations, the principles of Islamic jurisprudence, and public comprehension. Indonesia's diverse demographic and significant influence from Muhammadiyah and Nahdlatul Ulama groups lead to varied practices. Malaysia experiences minimal impact from smaller groups but historically had a notable discrepancy in Ramadan 1983. Brunei's unified adherence to the Shafi'i School of Thought ensures consistency in moon sighting practices. Singapore's reliance on calculations is driven by its inability to perform moon sightings due to light and industrial pollution. The study concludes that while MABIMS countries aim for a unified lunar crescent visibility criterion, practical implementations remain distinct, leading to potential differences in the start of important Hijri months. The need for a unified reference point and further discussions among MABIMS officials is highlighted to achieve consistent Hijri month determinations.
  15. Toosa H, Radu S, Rusul G, Latif AR, Rahim RA, Ahmad N, et al.
    Malays J Med Sci, 2001 Jan;8(1):53-8.
    PMID: 22973157
    Twenty-eight isolates of E. faecalis and 5 isolates of E. hirae were isolated from chicken samples obtained from markets in Sri Serdang, Selangor. They were tested for susceptibility to vancomycin and other antimicrobial agents. All of the isolates showed multiple resistance to the antibiotic tested. All Enterococcus spp. were resistant (100%) to ceftaxidime, cephalothin, erythromycin, gentamicin, kanamycin, nalidixic acid and streptomycin. Resistance was also observed to norfloxacin (97%), tetracycline (91%), penicillin (85%), bacitracin (82%), chloramphenicol (61%) and the least resistance was to ampicillin (27%). High prevalence to vancomycin resistance was detected among the E. faecalis (27of 28) and E. hirae (4 of 5) isolates. The multiple antibiotic resistance index ranging between 0.64 to 1.0 showed that all strains tested originated from high-risk contamination. Plasmid profile analysis of Enterococcus spp. revealed plasmid DNA bands ranging in size from 1.3 to 35.8 megadalton but some isolates were plasmidless. No correlation could be made between plasmid patterns and antibiotic resistance.
  16. Al-Nwany NT, Ahmad N, Mohammed Nawi A, Hassan MR, Hod R, Baharom M
    Malays J Med Sci, 2021 Oct;28(5):54-63.
    PMID: 35115887 DOI: 10.21315/mjms2021.28.5.5
    Background: In limited-resource countries, the prevalence of hepatitis B virus (HBV) infection can be measured using data taken from blood donors. This study aimed to determine the HBV infection seroprevalence and its associated factors among blood donors in Sana'a Governorate, Yemen.

    Methods: A cross-sectional study was conducted on 500 people who donated blood at hospitals located in Sana'a between August and October 2016. The volunteers were aged 18-65 years old and were recruited using convenience sampling. A set of questionnaires was administered through face-to-face interviews. Blood samples from each donor were tested for hepatitis B surface antigens using enzyme-linked immunosorbent assay.

    Results: The overall seroprevalence of HBV infection in the blood donors was 2.6%. Participants with a history of dental treatment had 7.80 higher odds (95% confidence interval [CI]: 2.26, 26.71; P = 0.002) for HBV infection. Respectively, blood donors who had history of malaria infection or cupping therapy had 7.48 (95% CI: 1.75, 31.82; P = 0.010) and 7.32 (95% CI: 1.72, 30.83; P = 0.010) greater odds of HBV infection.

    Conclusion: The seroprevalence of HBV infection in Sana'a is lower than in other governorates in Yemen. Stakeholders could focus on a history of dental procedure, malaria infection and cupping treatment when strategising about HBV infection prevention and control among blood donors.

  17. Aqeel S, Khan SU, Khan AS, Alharbi M, Shah S, Affendi ME, et al.
    Sci Rep, 2024 Jun 15;14(1):13839.
    PMID: 38879689 DOI: 10.1038/s41598-024-64419-4
    With the urge to secure and protect digital assets, there is a need to emphasize the immediacy of taking measures to ensure robust security due to the enhancement of cyber security. Different advanced methods, like encryption schemes, are vulnerable to putting constraints on attacks. To encode the digital data and utilize the unique properties of DNA, like stability and durability, synthetic DNA sequences are offered as a promising alternative by DNA encoding schemes. This study enlightens the exploration of DNA's potential for encoding in evolving cyber security. Based on the systematic literature review, this paper provides a discussion on the challenges, pros, and directions for future work. We analyzed the current trends and new innovations in methodology, security attacks, the implementation of tools, and different metrics to measure. Various tools, such as Mathematica, MATLAB, NIST test suite, and Coludsim, were employed to evaluate the performance of the proposed method and obtain results. By identifying the strengths and limitations of proposed methods, the study highlights research challenges and offers future scope for investigation.
  18. Ambrosino E, Abou Tayoun AN, Abramowicz M, Zilfalil BA, Boughtwood T, Hamdi Y, et al.
    Nat Med, 2024 Oct;30(10):2711-2713.
    PMID: 39227441 DOI: 10.1038/s41591-024-03225-x
  19. Faraj FL, Zahedifard M, Paydar M, Looi CY, Abdul Majid N, Ali HM, et al.
    ScientificWorldJournal, 2014;2014:212096.
    PMID: 25548779 DOI: 10.1155/2014/212096
    Two new synthesized and characterized quinazoline Schiff bases 1 and 2 were investigated for anticancer activity against MCF-7 human breast cancer cell line. Compounds 1 and 2 demonstrated a remarkable antiproliferative effect, with an IC50 value of 6.246×10(-6) mol/L and 5.910×10(-6) mol/L, respectively, after 72 hours of treatment. Most apoptosis morphological features in treated MCF-7 cells were observed by AO/PI staining. The results of cell cycle analysis indicate that compounds did not induce S and M phase arrest in cell after 24 hours of treatment. Furthermore, MCF-7 cells treated with 1 and 2 subjected to apoptosis death, as exhibited by perturbation of mitochondrial membrane potential and cytochrome c release as well as increase in ROS formation. We also found activation of caspases-3/7, -8, and -9 in compounds 1 and 2. Moreover, inhibition of NF-κB translocation in MCF-7 cells treated by compound 1 significantly exhibited the association of extrinsic apoptosis pathway. Acute toxicity results demonstrated the nontoxic nature of the compounds in mice. Our results showed significant activity towards MCF-7 cells via either intrinsic or extrinsic mitochondrial pathway and are potential candidate for further in vivo and clinical breast cancer studies.
  20. Savage AE, Grismer LL, Anuar S, Onn CK, Grismer JL, Quah E, et al.
    Ecohealth, 2011 Mar;8(1):121-8.
    PMID: 21541819 DOI: 10.1007/s10393-011-0685-y
    The fungal pathogen Batrachochytrium dendrobatidis (Bd) infects amphibians on every continent where they occur and is linked to the decline of over 200 amphibian species worldwide. At present, only three published Bd surveys exist for mainland Asia, and Bd has been detected in South Korea alone. In this article, we report the first survey for Bd in Peninsular Malaysia. We swabbed 127 individuals from the six amphibian families that occur on Peninsular Malaysia, including two orders, 27 genera, and 47 species. We detected Bd on 10 out of 127 individuals from four of five states and five of 11 localities, placing the 95% confidence interval for overall prevalence at 4-14%. We detected no variation in Bd prevalence among regions, elevations, or taxonomic groups. The infection intensity ranged from 1 to 157,000 genome equivalents. The presence of Bd infections in native species without clinical signs of disease suggests that Bd may be endemic to the region. Alternately, Bd may have been introduced from non-native amphibians because of the substantial amphibian food trade in Peninsular Malaysia. Under both scenarios, management efforts should be implemented to limit the spread of non-native Bd and protect the tremendous amphibian diversity in Peninsular Malaysia.
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