Displaying publications 1 - 20 of 33 in total

Abstract:
Sort:
  1. Goh CH, Muslimah Y, Ng SC, Subramanian P, Tan MP
    PMID: 25593906 DOI: 10.3389/fmed.2014.00032
    Manual transfer of elderly patients remains commonplace in many developing countries because the use of lifting equipment, such as hoists, is often considered unaffordable luxuries. The aim of this study was, therefore, to evaluate the usage and potential benefits of a low-cost, mechanical turning transfer device among elderly patients and their caregivers on a geriatric ward in a developing country in South East Asia. Fifty-six inpatients, aged 66-92 years, on a geriatric ward, and their caregivers were recruited. Participants were asked to transfer from bed-to-chair transfer with manual assistance, and the task was repeated using the Self-standing Turning Transfer Device (STurDi). The time taken to perform manual transfers and STurDi-assisted transfers was recorded. Physical strain was assessed using the perceived physical stress-rating tool for caregivers with and without the use of the device. User satisfaction was evaluated using the usefulness, satisfaction, and ease of use questionnaire. There was a significant reduction in transfer-time with manual transfers compared to STurDi-assisted transfers [mean (SD) = 48.39 (13.98) vs. 36.23 (10.96); p ≤ 0.001]. The physical stress rating was significantly lower in STurDi-aided transfers compared to manual transfers, shoulder [median (interquartile range) = 0 (1) vs. 4 (3); p = 0.001], upper back [0 (0) vs. 5 (4); p = 0.001], lower back [0 (1) vs. 5 (3), p = 0.001], whole body [1 (2) vs. 4 (3), p = 0.001], and knee [0 (1) vs. 1 (4), p = 0.001]. In addition, majority of patients and caregivers definitely or strongly agreed that the device was useful, saved time, and was easy to use. We have therefore demonstrated in a setting where manual handling was commonly performed that a low-cost mechanical transfer device reduced caregiver strain and was well received by older patients and caregivers.
  2. Subermaniam K, Welfred R, Subramanian P, Chinna K, Ibrahim F, Mohktar MS, et al.
    Front Public Health, 2016;4:292.
    PMID: 28119908 DOI: 10.3389/fpubh.2016.00292
    Falls and fall-related injuries are increasingly serious issues among elderly inpatients due to population aging. The bed-exit alarm has only previously been evaluated in a handful of studies with mixed results. Therefore, we evaluated the effectiveness of a modular bed absence sensor device (M-BAS) in detecting bed exits among older inpatients in a middle income nation in East Asia.
  3. Jaafar MH, Mahadeva S, Subramanian P, Tan MP
    J Nutr Health Aging, 2017;21(4):473-479.
    PMID: 28346575 DOI: 10.1007/s12603-016-0774-2
    OBJECTIVE: To explore the perceptions of healthcare professionals' (HCPs) in a South East Asian nation towards percutaneous endoscopic gastrostomy (PEG) feeding.

    DESIGN: Semi-structured, qualitative interviews.

    SETTINGS: A teaching hospital in Kuala Lumpur, Malaysia.

    PARTICIPANTS: A total of 17 healthcare professionals aged 23-43 years, 82% women.

    RESULTS: Thematic analysis revealed five themes that represent HCPs' perceptions in relation to the usage of PEG feeding: 1) knowledge of HCPs, 2) communication, 3) understanding among patients, and 4) financial and affordability.

    CONCLUSION: The rationale for reluctance towards PEG feeding observed in this regions was explained by lack of education, knowledge, communication, team work, and financial support. Future studies should assess the effects of educational programmes among HCPs and changes in policies to promote affordability on the utilization of PEG feeding in this region.

  4. Yahaya NA, Subramanian P, Bustam AZ, Taib NA
    Asian Pac J Cancer Prev, 2015;16(2):723-30.
    PMID: 25684515
    BACKGROUND: This study was performed to assess patient symptoms prevalence, frequency and severity, as well as distress and coping strategies used, and to identify the relationships between coping strategies and psychological and physical symptoms distress and demographic data of cancer patients. This cross-sectional descriptive study involved a total of 268 cancer patients with various types of cancer and chemotherapy identified in the oncology unit of an urban tertiary hospital.

    MATERIALS AND METHODS: Data were collected using questionnaires (demographic questionnaire, Medical characteristics, Memorial Symptom Assessment Scale (MSAS) and Brief COPE scales and analyzed for demographic, and disease-related variable effects on symptom prevalence, severity, distress and coping strategies.

    RESULTS: Symptom prevalence was relatively high and ranged from 14.9% for swelling of arms and legs to 88.1% for lack of energy. This latter was the highest rated symptom in the study. The level of distress was found to be low in three domains. Problem-focused coping strategies were found to be more commonly employed compared to emotion-focused strategies, demonstrating significant associations with sex, age group, educational levels and race. However, there was a positive correlation between emotion-focused strategies and physical and psychological distress, indicating that patients would choose emotion-focused strategies when symptom distress increased.

    CONCLUSIONS: These findings demonstrate that high symptom prevalence rates and coping strategies used render an improvement in current nursing management. Therefore development of symptoms management groups, encouraging the use of self-care diaries and enhancing the quality of psycho- oncology services provided are to be recommended.

  5. Mazlan M, Ghani SZ, Tan KF, Subramanian P
    Disabil Rehabil, 2016;38(22):2198-2205.
    PMID: 26731553 DOI: 10.3109/09638288.2015.1123307
    Purpose This study aims to determine the life satisfaction and strain on informal caregivers when caring for traumatic brain injury (TBI) patients and to examine the factors predicting the level of strain among the informal caregivers. Method A cross-sectional survey on a purposive sampling was performed in a single centre in Malaysia recruiting caregivers of patients with TBI. Life Satisfaction Questionnaire-9 and Caregiver Strain Index questionnaires were used to ascertain the life satisfaction and strain of caregivers respectively. Relationship between life satisfaction and strain was analysed, together with factors significantly associated with strain. Results A total of 141 caregivers (77.3% women, average age of 46.1 years ±12.8 and mean duration of caregiving of 24.8 months ± 14.3) were included in the analysis. Most caregivers (75%) were satisfied with their lives but more than half claimed to have strain (57%). There was a significant relationship between life satisfaction and strain among the caregivers (p p = 0.04), presence of patient's neurobehavioural disturbances (OR 4.48, 95% CI 1.60-12.55, p = 0.004) and cognitive dysfunctions (OR 31.72, 95% CI 10.27-97.96, p
  6. Omar Daw Hussin E, Wong LP, Chong MC, Subramanian P
    J Clin Nurs, 2018 Feb;27(3-4):e688-e702.
    PMID: 29076190 DOI: 10.1111/jocn.14130
    AIMS AND OBJECTIVES: To examine nurses' perceptions of barriers to and facilitators of end-of-life care, as well as their association with the quality of end-of-life care.

    BACKGROUND: Often, dying patients and their families receive their care from general nurses. The quality of end-of-life care in hospital wards is inadequate.

    METHOD: A self-administered questionnaire was completed by 553 nurses working in a tertiary teaching hospital in Malaysia.

    RESULTS: The barrier with the highest mean score was "dealing with distressed family members." The facilitator with the highest mean score was "providing a peaceful and dignified bedside scene for the family once the patient has died." With regard to barrier and facilitator categories, the barrier category with the highest total mean score was patient-related barriers and the facilitator category with the highest total mean score concerned facilitators related to healthcare professionals. In the multivariate analysis, age, patient family-related barriers and healthcare professional-related facilitators significantly predict the quality of end-of-life care.

    CONCLUSION: The results of this study suggest that there is an urgent need to overcome barriers related to the patient and family members that hinder the quality of care provided for dying patients, as well as to enhance and implement the facilitators related to healthcare providers. In addition, there is also a need to enhance the quality of end-of-life care provided by younger nurses through end-of-life care courses and training.

    RELEVANCE TO CLINICAL PRACTICE: Helping nurses overcome barriers and implement facilitators may lead to enhanced quality of care provided for dying patients.

  7. Hussin EOD, Wong LP, Chong MC, Subramanian P
    Int Nurs Rev, 2018 Jun;65(2):200-208.
    PMID: 29430644 DOI: 10.1111/inr.12428
    AIM: To examine the factors associated with nurses' perceptions of the quality of end-of-life care.

    BACKGROUND: With increasing demand for hospitals to provide end-of-life care, the low quality of palliative care provided in hospital settings is an issue of growing concern in developing countries. Most dying patients receive their care from general nurses, irrespective of the nurses' specialty or level of training.

    METHOD: A structured cross-sectional questionnaire survey was conducted of 553 nurses working at a teaching hospital in Malaysia.

    RESULTS: The mean scores for nurses' knowledge about end-of-life care, their attitudes towards end-of-life care and the perceived quality of end-of-life care were low. The factors identified as significantly associated with the quality of end-of-life care were nurses' levels of knowledge and their attitudes towards end-of-life care.

    DISCUSSION: Factors that contributed to the low quality of end-of-life care were inadequate knowledge and negative attitudes. These findings may reflect that end-of-life care education is not well integrated into nursing education.

    CONCLUSION: The findings of this study suggest that there is a need to increase the nurses' level of knowledge and improve their attitude towards end-of-life care in order to enhance the quality of care provided to dying patients.

    IMPLICATIONS FOR NURSING AND HEALTH POLICY: Nurse managers and hospital policymakers should develop strategies to enhance nurses' level of knowledge, as well as providing adequate emotional support for nurses who care for dying patients and their families. Nurses should be proactive in increasing their knowledge and adopting more positive attitudes towards end-of-life care.

  8. Subramanian P, Ramasamy S, Ng KH, Chinna K, Rosli R
    Int J Nurs Pract, 2016 Jun;22(3):232-8.
    PMID: 25355297 DOI: 10.1111/ijn.12363
    Alleviating acute pain and providing pain relief are central to caring for surgical patients as pain can lead to many adverse medical consequences. This study aimed to explore patients' experience of pain and satisfaction with postoperative pain control. A cross-sectional survey was carried out among 107 respondents who had undergone abdominal surgery in the surgical ward of an urban hospital using the Revised American Pain Society's Patient Outcome and Satisfaction Survey Questionnaires (APS-POQ-R). Data were analysed using descriptive statistics and chi-square test. Chi-square test showed significant association between race (P = 0.038), education level (P ≤ 0.001), previous operation status (P = 0.032) and operation status (P ≤ 0.001). Further analysis on nominal regression, association between dissatisfaction with factors of operation status (46.09 (95% CI 7.456, 284.947)) and previous operation status (13.38 (95% CI 1.39, 128.74)) was found to be significant. Moderate to high levels of pain intensity in the last 24 h after surgery, as well as moderate to high rates of pain-related interference with care activities were most reported. Pain still remains an issue among surgical patients, and effective pain management and health education are needed to manage pain more effectively after surgery.
  9. Lopez O, Subramanian P, Rahmat N, Theam LC, Chinna K, Rosli R
    J Clin Nurs, 2015 Jan;24(1-2):183-91.
    PMID: 25060423 DOI: 10.1111/jocn.12657
    To determine the effectiveness of facilitated tucking in reducing pain when venepuncture is being performed on preterm infants.
  10. Baskaran P, Subramanian P, Rahman RA, Ping WL, Mohd Taib NA, Rosli R
    Asian Pac J Cancer Prev, 2013;14(12):7693-9.
    PMID: 24460355
    AIMS: A main reason for increasing incidence of cervical cancer worldwide is the lack of regular cervical cancer screening. Coverage and uptake remain major challenges and it is crucial to determine the perceived susceptibility to cervical cancer, as well as the benefits of, and barriers to, cervical cancer screening among women.

    MATERIALS AND METHODS: A cross-sectional survey was conducted among 369 women attending an outpatient centre in Malaysia and data were collected by administering a self-report questionnaire.

    RESULTS: The majority of the participants (265, 71.8%) showed good level of perception of their susceptibility to cervical cancer. Almost all responded positively to four statements about the perceived benefits of cervical cancer screening (agree, 23.1% or strongly agree, 52.5%), whereas negative responses were received from most of the participants (agree, 29.9%or strongly agree, 14.6 %) about the eleven statements on perceived barriers. Significant associations were observed between age and perceived susceptibility(x2=9.030, p=0.029); between employment status (p<0.001) as well as ethnicity and perceived benefits (p<0.05 [P=0.003]); and between education and perceived barriers to cervical cancer screening (p<0.001).

    CONCLUSIONS: Perceived susceptibility, including knowledge levels and personal risk assessment, should be emphasized through education and awareness campaigns to improve uptake of cervical cancer screening in Malaysia.
  11. Maniam R, Subramanian P, Singh SK, Lim SK, Chinna K, Rosli R
    Singapore Med J, 2014 Sep;55(9):476-82.
    PMID: 25273932
    INTRODUCTION: Fatigue and quality of sleep are the main factors that contribute to a poor quality of life among patients on long-term haemodialysis. Studies have also emphasised the importance of exercise for improving the wellbeing of dialysis patients. This study aimed to determine the effectiveness of a predialysis low-to-moderate-intensity exercise programme for reducing fatigue and improving sleep disorders among long-term haemodialysis patients.

    METHODS: In this quasi-experimental study, an exercise programme was conducted three times a week for 12 weeks before long-term haemodialysis patients underwent dialysis at two centres. The patients were categorised into either the exercise group (n = 28) or control group (n = 27). The latter was asked to maintain their current lifestyles. Assessments of fatigue and sleep disorder levels were performed for both groups using self-reported questionnaires at baseline and after intervention. The patients' perception of the exercise programme was also determined using self-reported questionnaires.

    RESULTS: Paired sample t-test indicated improvements in fatigue level in the exercise group (mean fatigue score: post-treatment 40.5 ± 7.9 vs. pre-treatment 30.0 ± 10.9). Improvements in sleep disorders were also observed in the exercise group (mean score: post-treatment 7.6 ± 3.3 vs. pre-treatment 10.1 ± 3.8). However, sleep quality deteriorated in the control group (mean score: post-treatment 10.7 ± 2.9 vs. pre-treatment 9.3 ± 2.9).

    CONCLUSION: Simple low-to-moderate-intensity exercise is effective for improving fatigue, sleep disorders and the overall quality of life among haemodialysis patients.
  12. Ngu SS, Tan MP, Subramanian P, Abdul Rahman R, Kamaruzzaman S, Chin AV, et al.
    Pain Manag Nurs, 2015 Aug;16(4):595-601.
    PMID: 26088939 DOI: 10.1016/j.pmn.2014.12.002
    Pain assessment in older individuals with cognitive impairment is challenging. Evidence on the performance of pain assessment tools in this population remains limited. The aim of this study was to evaluate the performance of self-reported pain, nurse-reported pain, and observational pain tools among older patients with cognitive impairment using a prospective observational design. In all, 152 older individuals admitted to the acute geriatric ward were recruited through convenience sampling. Three methods of pain assessment were compared: self-reported pain (SRP), observational pain using the Pain Assessment in Advanced Dementia (PAINAD) tool, and nurse-reported pain (NRP). Cognition and mood were assessed with the Mini-Mental State Examination (MMSE) and the 15-item Geriatric Depression Scale (GDS-15). There was moderate agreement between SRP and PAINAD (k = 0.438) and fair agreement between SRP and NRP (k = 0.263). There was statistically significant correlation between SRP and GDS-15 (r = 0.382, p p = .824). These results suggest that the use of an observational pain scale would be helpful in pain assessment among older individuals when the ability to report pain is not possible. However, self-reported assessments should be attempted first for cognitively impaired patients.
  13. Lee DS, Abdullah KL, Subramanian P, Bachmann RT, Ong SL
    J Clin Nurs, 2017 Dec;26(23-24):4065-4079.
    PMID: 28557238 DOI: 10.1111/jocn.13901
    AIMS AND OBJECTIVES: To explore whether there is a correlation between critical thinking ability and clinical decision-making among nurses.

    BACKGROUND: Critical thinking is currently considered as an essential component of nurses' professional judgement and clinical decision-making. If confirmed, nursing curricula may be revised emphasising on critical thinking with the expectation to improve clinical decision-making and thus better health care.

    DESIGN: Integrated literature review.

    METHODS: The integrative review was carried out after a comprehensive literature search using electronic databases Ovid, EBESCO MEDLINE, EBESCO CINAHL, PROQuest and Internet search engine Google Scholar. Two hundred and 22 articles from January 1980 to end of 2015 were retrieved. All studies evaluating the relationship between critical thinking and clinical decision-making, published in English language with nurses or nursing students as the study population, were included. No qualitative studies were found investigating the relationship between critical thinking and clinical decision-making, while 10 quantitative studies met the inclusion criteria and were further evaluated using the Quality Assessment and Validity Tool. As a result, one study was excluded due to a low-quality score, with the remaining nine accepted for this review.

    RESULTS: Four of nine studies established a positive relationship between critical thinking and clinical decision-making. Another five studies did not demonstrate a significant correlation. The lack of refinement in studies' design and instrumentation were arguably the main reasons for the inconsistent results.

    CONCLUSIONS: Research studies yielded contradictory results as regard to the relationship between critical thinking and clinical decision-making; therefore, the evidence is not convincing. Future quantitative studies should have representative sample size, use critical thinking measurement tools related to the healthcare sector and evaluate the predisposition of test takers towards their willingness and ability to think. There is also a need for qualitative studies to provide a fresh approach in exploring the relationship between these variables uncovering currently unknown contributing factors.

    RELEVANCE TO CLINICAL PRACTICE: This review confirmed that evidence to support the existence of relationships between critical thinking and clinical decision-making is still unsubstantiated. Therefore, it serves as a call for nurse leaders and nursing academics to produce quality studies in order to firmly support or reject the hypothesis that there is a statistically significant correlation between critical thinking and clinical decision-making.

  14. Subramanian P, Choy KL, Gobal SV, Mansor M, Ng KH
    Singapore Med J, 2013 May;54(5):281-4.
    PMID: 23716155
    INTRODUCTION: Ventilator-associated pneumonia (VAP) is a common risk among critically ill ventilated patients. This study aimed to investigate the effects of nurse-led education on: (a) knowledge of and compliance with ventilator care bundle (VCB) practices among intensive care unit (ICU) nurses; and (b) reduction in the rates of VAP post intervention.

    METHODS: A quasi-experimental design with pretest-posttest evaluation and observation was used to investigate nurses' knowledge of and compliance with VCB practices, and the incidence of VAP. The study was conducted among 71 nurses, and the intervention involved structured education on VAP and its prevention using VCB in an ICU setting. Data were analysed using descriptive and inferential statistics.

    RESULTS: Nurse-led education significantly increased nurses' knowledge of (t[70] = -36.19; p < 0.001) and compliance with (t[65] = -21.41; p < 0.001) VCB practices. The incidence of VAP, which was 39 per 1,000 ventilator days during the two-month period before intervention, dropped to 15 per 1,000 ventilator days during the two-month period following intervention.

    CONCLUSION: Our findings show that nurse-led education on VAP and VCB significantly increased knowledge of and compliance with VCB practices among ICU nurses, and was associated with a reduction in the incidence of VAP among intubated and mechanically ventilated ICU patients. Inclusion of recent knowledge and evidence-based VCB guidelines for VAP prevention when educating anaesthetists, nurses, physiotherapists and other healthcare providers in the critical care setting is recommended.
  15. Tee MZ, Er YX, Easton AV, Yap NJ, Lee IL, Devlin J, et al.
    Microbiome, 2022 Dec 07;10(1):214.
    PMID: 36476263 DOI: 10.1186/s40168-022-01385-x
    BACKGROUND: While microbiomes in industrialized societies are well characterized, indigenous populations with traditional lifestyles have microbiomes that are more akin to those of ancient humans. However, metagenomic data in these populations remains scarce, and the association with soil-transmitted helminth infection status is unclear. Here, we sequenced 650 metagenomes of indigenous Malaysians from five villages with different prevalence of helminth infections.

    RESULTS: Individuals from villages with higher prevalences of helminth infections have more unmapped reads and greater microbial diversity. Microbial community diversity and composition were most strongly associated with different villages and the effects of helminth infection status on the microbiome varies by village. Longitudinal changes in the microbiome in response to albendazole anthelmintic treatment were observed in both helminth infected and uninfected individuals. Inference of bacterial population replication rates from origin of replication analysis identified specific replicating taxa associated with helminth infection.

    CONCLUSIONS: Our results indicate that helminth effects on the microbiota were highly dependent on context, and effects of albendazole on the microbiota can be confounding for the interpretation of deworming studies. Furthermore, a substantial quantity of the microbiome remains unannotated, and this large dataset from an indigenous population associated with helminth infections is a valuable resource for future studies. Video Abstract.

  16. Subramanian P, Allcock N, James V, Lathlean J
    J Clin Nurs, 2012 May;21(9-10):1254-62.
    PMID: 21777315 DOI: 10.1111/j.1365-2702.2011.03789.x
    To explore nurses' challenges in managing pain among ill patients in critical care.
  17. Abdullah F, Subramanian P, Ibrahim H, Abdul Malek SN, Lee GS, Hong SL
    J Insect Sci, 2015;15(1):175.
    PMID: 25688085 DOI: 10.1093/jisesa/ieu175
    Dual choice bioassays were used to evaluate the antifeedant property of essential oil and methanolic extract of Alpinia galanga (L.) (locally known as lengkuas) against two species of termites, Coptotermes gestroi (Wasmann) and Coptotermes curvignathus (Holmgren) (Isoptera: Rhinotermitidae). A 4-cm-diameter paper disc treated with A. galanga essential oil and another treated with either methanol or hexane as control were placed in a petri dish with 10 termites. Mean consumption of paper discs (miligram) treated with 2,000 ppm of essential oil by C. gestroi was 3.30 ± 0.24 mg and by C. curvignathus was 3.32 ± 0.24 mg. A. galanga essential oil showed significant difference in antifeedant effect, 2,000 ppm of A. galanga essential oil was considered to be the optimum concentration that gave maximum antifeedant effect. The essential oil composition was determined using gas chromatography-mass spectrometry. The major component of the essential oil was 1,8-cineol (61.9%). Antifeedant bioassay using 500 ppm of 1,8-cineol showed significant reduction in paper consumption by both termite species. Thus, the bioactive agent in A. galangal essential oil causing antifeeding activity was identified as 1,8-cineol. Repellent activity shows that 250 ppm of 1,8-cineol caused 50.00 ± 4.47% repellency for C. gestroi, whereas for C. curvignathus 750 ppm of 1,8-cineol was needed to cause similar repellent activity (56.67 ± 3.33%). C. curvignathus is more susceptible compare to C. gestroi in Contact Toxicity study, the lethal dose (LD50) of C. curvignathus was 945 mg/kg, whereas LD50 value for C. gestroi was 1,102 mg/kg. Hence 1,8-cineol may be developed as an alternative control against termite in sustainable agriculture practices.
  18. Subramanian P, Jayapalan JJ, Abdul-Rahman PS, Arumugam M, Hashim OH
    PeerJ, 2016;4:e2080.
    PMID: 27257555 DOI: 10.7717/peerj.2080
    Background. Diurnal rhythms of protein synthesis controlled by the biological clock underlie the rhythmic physiology in the fruit fly, Drosophila melanogaster. In this study, we conducted a proteome-wide investigation of rhythmic protein accumulation in D. melanogaster. Materials and Methods. Total protein collected from fly samples harvested at 4 h intervals over the 24 h period were subjected to two-dimensional gel electrophoresis, trypsin digestion and MS/MS analysis. Protein spots/clusters were identified with MASCOT search engine and Swiss-Prot database. Expression of proteins was documented as percentage of volume contribution using the Image Master 2D Platinum software. Results. A total of 124 protein spots/clusters were identified using MS/MS analysis. Significant variation in the expression of 88 proteins over the 24-h period was observed. A relatively higher number of proteins was upregulated during the night compared to the daytime. The complexity of temporal regulation of the D. melanogaster proteome was further reflected from functional annotations of the differently expressed proteins, with those that were upregulated at night being restricted to the heat shock proteins and proteins involved in metabolism, muscle activity, protein synthesis/folding/degradation and apoptosis, whilst those that were overexpressed in the daytime were apparently involved in metabolism, muscle activity, ion-channel/cellular transport, protein synthesis/folding/degradation, redox homeostasis, development and transcription. Conclusion. Our data suggests that a wide range of proteins synthesized by the fruit fly, D. melanogaster, is under the regulation of the biological clock.
  19. Jayapalan JJ, Subramanian P, Kani A, Hiji J, Najjar SG, Abdul-Rahman PS, et al.
    Arch Insect Biochem Physiol, 2020 Nov;105(3):e21738.
    PMID: 32924199 DOI: 10.1002/arch.21738
    The circadian clock regulates vital aspects of physiology including protein synthesis and oxidative stress response. In this investigation, we performed a proteome-wide scrutiny of rhythmic protein accrual in Drosophila melanogaster on exposure to rotenone, rotenone + hesperidin and hesperidin in D. melanogaster. Total protein from fly samples collected at 6 h intervals over the 24 h period was subjected to two-dimensional gel electrophoresis and mass spectrometry. Bioinformatics tool, Protein ANalysis THrough Evolutionary Relationships classification system was used to the determine the biological processes of the proteins of altered abundance. Conspicuous variations in the proteome (151 proteins) of the flies exposed to oxidative stress (by rotenone treatment) and after alleviating oxidative stress (by hesperidin treatment) were observed during the 24 h cycle. Significantly altered levels of abundance of a wide variety of proteins under oxidative stress (rotenone treatment) and under alleviation of oxidative stress (rotenone + hesperidin treatment) and hesperidin (alone) treatment were observed. These proteins are involved in metabolism, muscle activity, heat shock response, redox homeostasis, protein synthesis/folding/degradation, development, ion-channel/cellular transport, and gustatory and olfactory function of the flies. Our data indicates that numerous cellular processes are involved in the temporal regulation of proteins and widespread modulations happen under rotenone treatment and, action of hesperidin could also be seen on these categories of proteins.
Related Terms
Filters
Contact Us

Please provide feedback to Administrator (afdal@afpm.org.my)

External Links