Displaying publications 21 - 40 of 415 in total

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  1. Razak MR, Aris AZ, Zakaria NAC, Wee SY, Ismail NAH
    Ecotoxicol Environ Saf, 2021 Mar 15;211:111905.
    PMID: 33453636 DOI: 10.1016/j.ecoenv.2021.111905
    The constant increase of heavy metals into the aqueous environment has become a contemporary global issue of concern to government authorities and the public. The study assesses the concentration, distribution, and risk assessment of heavy metals in freshwater from the Linggi River, Negeri Sembilan, Malaysia. Species sensitivity distribution (SSD) was utilised to calculate the cumulative probability distribution of toxicity from heavy metals. The aquatic organism's toxicity data obtained from the ECOTOXicology knowledgebase (ECOTOX) was used to estimate the predictive non-effects concentration (PNEC). The decreasing sequence of hazardous concentration (HC5) was manganese > aluminium > copper > lead > arsenic > cadmium > nickel > zinc > selenium, respectively. The highest heavy metal concentration was iron with a mean value of 45.77 μg L-1, followed by manganese (14.41 μg L-1) and aluminium (11.72 μg L-1). The mean heavy metal pollution index (HPI) value in this study is 11.52, implying low-level heavy metal pollutions in Linggi River. The risk quotient (RQ) approaches were applied to assess the potential risk of heavy metals. The RQ shows a medium risk of aluminium (RQm = 0.1125) and zinc (RQm = 0.1262); a low risk of arsenic (RQm = 0.0122) and manganese (RQm = 0.0687); and a negligible risk of cadmium (RQm = 0.0085), copper (RQm = 0.0054), nickel (RQm = 0.0054), lead (RQm = 0.0016) and selenium (RQm = 0.0012). The output of this study produces comprehensive pollution risk, thus provides insights for the legislators regarding exposure management and mitigation.
    Matched MeSH terms: Environmental Monitoring; Iron
  2. Keowmani T, Teo SC, Yap KC, Chua WL, Mohd Tahir NF, Chua PW, et al.
    Hemoglobin, 2023 Nov;47(6):237-244.
    PMID: 38111324 DOI: 10.1080/03630269.2023.2295291
    BACKGROUND: Adherence to iron chelation therapy (ICT) remains an issue among thalassemia patients. This study aimed to determine the prevalence of non-adherence to ICT among children with beta thalassemia major in Malaysia and the factors associated with it.

    METHODS: This was a cross-sectional study conducted between November 2019 and November 2021 at seven tertiary hospitals in Malaysia. Participants registered with Malaysian Thalassemia Registry were recruited by convenience sampling. Adherence was measured via pill count and self-reported adherence. Knowledge about thalassemia and ICT was measured using a questionnaire from Modul Thalassemia by Ministry of Health of Malaysia. A decision tree was used to identify predictors of non-adherence.

    RESULTS: A total of 135 patients were recruited. The prevalence of non-adherence to ICT in those who took subcutaneous ± oral medications was 47.5% (95% CI: 31.5%, 63.9%) and the prevalence of non-adherence to ICT in those who took oral medications only was 21.1% (95% CI: 13.4%, 30.6%). The median knowledge score was 67.5% (IQR 15%). A decision tree has identified two factors associated with non-adherence. They were ICT's route of administration and knowledge score. Out of 100 patients who were on oral medications only, 79 were expected to adhere. Out of 100 patients who were on subcutaneous ± oral medications and scored less than 56.25% in knowledge questionnaire, 86 were expected to non-adhere. Based on the logistic regression, the odds of non-adherence in patients who took oral medications only was 71% lower than the odds of non-adherence in patients who took subcutaneous ± oral medications (OR = 0.29; 95% CI = 0.13, 0.65; p = .002).

    CONCLUSION: The prevalence of non-adherence to ICT among children with beta thalassemia major in Malaysia was 20/95 (21.1%) in those who took oral medications only and the prevalence of non-adherence was 19/40 (47.5%) in those who took subcutaneous ± oral medications. The factors associated with non-adherence were ICT's route of administration and knowledge score.

    Matched MeSH terms: Iron; Iron Chelating Agents/therapeutic use
  3. Ngah WS, Ab Ghani S, Kamari A
    Bioresour Technol, 2005 Mar;96(4):443-50.
    PMID: 15491825
    A batch adsorption system was applied to study the adsorption of Fe(II) and Fe(III) ions from aqueous solution by chitosan and cross-linked chitosan beads. The adsorption capacities and rates of Fe(II) and Fe(III) ions onto chitosan and cross-linked chitosan beads were evaluated. Chitosan beads were cross-linked with glutaraldehyde (GLA), epichlorohydrin (ECH) and ethylene glycol diglycidyl ether (EGDE) in order to enhance the chemical resistance and mechanical strength of chitosan beads. Experiments were carried out as function of pH, agitation period, agitation rate and concentration of Fe(II) and Fe(III) ions. Langmuir and Freundlich adsorption models were applied to describe the isotherms and isotherm constants. Equilibrium data agreed very well with the Langmuir model. The kinetic experimental data correlated well with the second-order kinetic model, indicating that the chemical sorption was the rate-limiting step. Results also showed that chitosan and cross-linked chitosan beads were favourable adsorbers.
    Matched MeSH terms: Iron/isolation & purification*; Iron/chemistry*
  4. Adam F, Andas J
    J Colloid Interface Sci, 2007 Jul 1;311(1):135-43.
    PMID: 17391688
    Iron and 4-(methylamino)benzoic acid have been successfully incorporated into silica extracted from rice husk. The silica/Fe/amine complex, RH-Fe(5% amine), showed a ca. 24% increase in specific surface area compared to RH-Fe. This increase was attributed to the templated formation of regular pores. The XRD showed the RH-Fe(5% amine) to be amorphous. The Friedel-Crafts benzylation reaction with toluene using RH-Fe(5% amine) showed a drastic reduction in the di-substituted products to ca. 1.0%.
    Matched MeSH terms: Iron/chemistry
  5. Lee YY, Bhaskar S
    Case Rep Med, 2011;2011:271560.
    PMID: 22229036 DOI: 10.1155/2011/271560
    We report a 33-year-old Malay woman presented with acute left dense hemiparesis and an NIHSS score of 11/15. Computed tomography (CT) scan brain showed a massive right middle cerebral artery (MCA) territory infarct. The right internal carotid artery (ICA) and right proximal MCA were shown occluded from digital substraction angiography (DSA). Carotid dissection, carotid canal anomaly, and intercavernous communication were systematically ruled out. She had no risk factors for atherosclerosis. The connective tissue screening and thrombophilic markers were negative. However, she was anaemic on admission and subsequent investigations revealed that she had alpha-thalassemia and iron deficiency anaemia. The right ICA remained occluded from a repeat CT cerebral angiogram after one year, but otherwise she was neurologically stable. This case illustrates an unusual association between intracranial vessel occlusion with iron deficiency anaemia and alpha-thalassemia trait.
    Matched MeSH terms: Anemia, Iron-Deficiency
  6. Shafiee NH, Manaf ZA, Mokhtar NM, Raja Ali RA
    Intest Res, 2020 Oct;18(4):447-458.
    PMID: 32475103 DOI: 10.5217/ir.2019.00042
    BACKGROUND/AIMS: Ulcerative colitis (UC) is a chronic, relapsing and remitting inflammation of the gastrointestinal tract. Little is known about the link between dietary intake, food avoidance, and beliefs among UC patients of different disease severity. Therefore, this study aimed to assess the dietary intake, food avoidance, and beliefs among active and inactive UC patients.

    METHODS: A cross-sectional study was conducted among UC patients from a tertiary medical center in Kuala Lumpur, Malaysia. Demographic, anthropometric, dietary intake, food avoidance and beliefs were assessed. Disease activity of UC patients was evaluated using the Powell Tuck Index.

    RESULTS: UC patients were recruited (64.1% inactive UC and 35.9% active UC). As compared to inactive UC patients, active UC patients were likely to lose weight (75.0% vs. 0%), possess certain food beliefs (95.7% vs. 39.0%), and frequently practiced dietary avoidance (95.7% vs. 43.9%). The dietary intake among inactive UC patients was higher than active UC patients. However, neither of them met the standard nutrients recommendation for protein, calcium, iron, folate, zinc, vitamin D, vitamin B12, and vitamin E.

    CONCLUSIONS: Active UC patients had poorer dietary intake, were more prone to practicing food avoidance and exhibited certain food beliefs as compared to inactive UC patients. Both macro- and micronutrients intakes were inadequate regardless of patient's disease status. These findings emphasized the importance for patients to be provided with the nutrition-related knowledge as part of strategies to avoid nutritional inadequacies.

    Matched MeSH terms: Iron
  7. Nauman Mahamood M, Zhu S, Noman A, Mahmood A, Ashraf S, Aqeel M, et al.
    Environ Pollut, 2023 Feb 15;319:120979.
    PMID: 36586554 DOI: 10.1016/j.envpol.2022.120979
    Soil heavy metal contamination is increasing rapidly due to increased anthropogenic activities. Lead (Pb) is a well-known human carcinogen causing toxic effects on humans and the environment. Its accumulation in food crops is a serious hazard to food security. Developing environment-friendly and cost-efficient techniques is necessary for Pb immobilization in the soil. A pot experiment was executed to determine the role of biochar (BC), zero-valent iron nanoparticles (n-ZVI), and zero-valent iron nanoparticles biochar composite (n-ZVI-BC) in controlling the Pb mobility and bioaccumulation in wheat (Triticum aestivum L.). The results showed that BC and n-ZVI significantly enhanced the wheat growth by increasing their photosynthetic and enzymatic activities. Among all the applied treatments, the maximum significant (p ≤ 0.05) improvement in wheat biomass was with the n-ZVI-BC application (T3). Compared to the control, the biomass of wheat roots, shoots & grains increased by 92.5, 58.8, and 49.1%, respectively. Moreover, the soil addition of T3 amendment minimized the Pb distribution in wheat roots, shoots, and grains by 33.8, 26.8, and 16.2%, respectively. The outcomes of this experiment showed that in comparison to control treatment plants, soil amendment with n-ZVI-BC (T3) increased the catalase (CAT), superoxide dismutase (SOD) activity by 49.8 and 31.1%, respectively, ultimately declining electrolyte leakage (EL), malondialdehyde (MDA) and hydrogen peroxide (H2O2) content in wheat by 38.7, 33.3, and 38%respectively. In addition, applied amendments declined the Pb mobility in the soil by increasing the residual Pb fractions. Soil amendment with n-ZVI-BC also increased the soil catalase (CAT), urease (UR), and acid phosphatase (ACP) activities by 68, 59, and 74%, respectively. Our research results provided valuable insight for the remediation of Pb toxicity in wheat. Hence, we can infer from our findings that n-ZVI-BC can be considered a propitious, environment friendly and affordable technique for mitigating Pb toxicity in wheat crop and reclamation of Pb polluted soils.
    Matched MeSH terms: Iron*
  8. Mahjouri M, Ishak MB, Torabian A, Manaf LA, Halimoon N
    J Environ Health Sci Eng, 2018 Dec;16(2):181-192.
    PMID: 30728990 DOI: 10.1007/s40201-018-0306-6
    Background: Environmental policies should be developed in a contextual decision-making process regarding local environmental concerns emphasizing the economic, technical, social and institutional considerations. Establishing emission limit levels, especially in the industrial sector, is one of the most problematic environmental issues in developing countries, for which it is essential to include several criteria that reflect their country-specific constraints and capacities. Since Best Available Technology (BAT) is acknowledged to be the reference element for sustainable development and a basis for Emissions Limit Values (ELVs), the objective of this study is to present a reliable methodology for establishing ELVs thresholds with an emphasis on the BAT concept for national regulation at the sector level.

    Methods: A hybrid fuzzy multiple-criteria decision-making (FMCDM) process, consisting of the Analytic Hierarchy Process (AHP) and fuzzy Technique for Order of Preference by Similarity to Ideal Solution (fuzzy TOPSIS) method, is structured to aggregate the different criteria and rank different ELV alternatives in this complicated evaluation. In order to use the most profound knowledge and judgment of a professional expert team, this qualitative assessment highlights the importance of supportive information.

    Results: The results obtained indicate that experts have considered the country-specific information as a reliable reference in their decisions. Among different key evaluation criteria in effluent standard setting, the highest experts' priority is "Environmental protection". For both the conventional and toxic pollutants, the influence of all other criteria namely "Economic feasibility", "Technology viability" and "Institutional capacity", as constraining criteria in developing countries, have not reduced the responsibility towards the environmental objectives. In ELVs ranking, experts have made their decisions with respect to the specific characteristics of each pollutant and the existing capacities and constraints of the country, without emphasizing on any specific reference.

    Conclusions: This systematic and transparent approach has resulted in defensible country-specific ELVs for the Iron and Steel industry, which can be developed for other sectors. As the main conclusion, this paper demonstrates that FMCDM is a robust tool for this comprehensive assessment especially regarding the data availability limitations in developing countries.

    Matched MeSH terms: Iron; Environmental Policy
  9. Abdul Wahab MF, Mohamad Ghani NI, Kuppuswamy R
    Forensic Sci Int, 2012 Nov 30;223(1-3):53-63.
    PMID: 22955030 DOI: 10.1016/j.forsciint.2012.07.020
    Most of the automotive companies use cast iron for their engine blocks. Restoration of obliterated number on these iron surfaces by chemical etching is known to be quite difficult. Heating of the obliterated surface using oxyacetylene flame is an alternative recovery treatment suggested in literature and used in practice. However chemical etching has been established to be the most sensitive technique for detection of metal deformation present under stamped serial numbers. Hence, the current work investigated the suitability of some common etchants on cast iron surfaces with a view to determining the most suitable one for revealing the obliterated marks. The reagents tested were mostly copper containing Fry's reagent and its modifications. Two cast iron engine blocks (3.29%C and 3.1%C) of two cars--a Proton Saga and a Toyota--were utilized for the experiments. The engine blocks were cut into several small plates and each plate was stamped with some numerical characters at 8 kN load using Instron Table Mounted Universal Testing Machine. The depth of stamping impression varied between 0.2 mm and 0.3 mm. The stamped number was completely ground off manually using a metal file. The grounded surface was then polished smooth using emery papers and etched with a few selected reagents mostly by swabbing. Experimental results showed that a modified Fry's composition consisting of 4 5g CuCl(2), 100 mL HCl, and 180 mL H(2)O restored the number with better contrast at a reasonably shorter time. The above reagent is a slightly modified form of one of the Fry's original compositions--45 g CuCl(2), 180 mL HCl, and 100 mL H(2)O. Quite importantly the proposed reagent restored the original stamped numbers of both Proton and Toyota cars and also a Mitsubishi car that had been obliterated. The most widely used Fry's composition (90 g CuCl(2), 120 mL HCl and 100 mL H(2)O), although recovered the obliterated number, did not cause the desired contrast.
    Matched MeSH terms: Iron
  10. Git KA, Fioravante LA, Fernandes JL
    Br J Radiol, 2015 Sep;88(1053):20150269.
    PMID: 26118302 DOI: 10.1259/bjr.20150269
    To assess whether an online open-source tool would provide accurate calculations of T2(*) values for iron concentrations in the liver and heart compared with a standard reference software.
    Matched MeSH terms: Iron/analysis*; Iron Overload/diagnosis*
  11. Suzana Shahar, Lee X.K., Siti Balkis Budin, Mokhtar Abu Bakar, Nor Aini Umar, Junara Mohd Halim
    MyJurnal
    The relationship between anaemia and cognitive function was evaluated among 35 Chinese elderly (24 men and 11 women) aged 60 to 85 years (mean age 70.1 ± 6.7 years) from five old folks homes in Klang Valley. They were interviewed to obtain information on social and health status, habitual dietary intake and cognitive function. Hodkinson's Abbreviated Mental Test was used to measure the cognitive function. Haematological indices which included Full Blood Count (FBC), serum iron, serum ferritin, Total Iron Binding Capacity (TIBC), serum folate and serum cobalamine (vitamin B12) were measured using an automated analyzer. Anthropometric measurements and clinical signs of anaemia were also examined. The findings indicated that the prevalence of anaemia as assessed using haemoglobin alone was 22.9%, while iron deficiency anaemia based on low serum iron, microcytic and hypochromic criterion was detected among 5.7% of the sample. Subclinical folate and vitamin B12 deficiencies were diagnosed among 34.3% and 8.6% of the subjects. However, there was no occurrence of megaloblastic anaemia. There was a positive correlation between cognitive score with mid upper arm circumference (MUAC) (r=0.547, p
    Matched MeSH terms: Iron; Anemia, Iron-Deficiency
  12. Al-Mekhlafi MH, Surin J, Atiya AS, Ariffin WA, Mahdy AK, Abdullah HC
    Trans R Soc Trop Med Hyg, 2008 Oct;102(10):1046-52.
    PMID: 18617209 DOI: 10.1016/j.trstmh.2008.05.012
    A cross-sectional study to determine the current prevalence of anaemia and iron deficiency anaemia (IDA) and to investigate the possible risk factors for IDA was carried out on 241 aboriginal schoolchildren (120 boys, 121 girls) aged 7-12 years and living in remote areas in Pos Betau, Pahang, Malaysia. Haemoglobin (Hb) level was measured and serum iron status was assessed by serum ferritin (SF), serum iron (SI) and total iron binding capacity measurements. Socioeconomic data were collected using pre-tested questionnaires. All children were screened for intestinal parasitic infections. Overall, 48.5% (95% CI 42.3-54.8) of children were anaemic (Hb<12 g/dl). The prevalence of IDA was 34% (95% CI 28.3-40.2), which accounted for 70.1% of the anaemia cases. The prevalence of IDA was significantly higher in females than males. Low levels of mothers' education and low household income were identified as risk factors for IDA. Severe trichuriasis also found to be associated with low SF and SI. Logistic regression confirmed low levels of mothers' education and gender as significant risk factors for IDA. Improvement of socioeconomic status and health education together with periodic mass deworming should be included in public health strategies for the control and prevention of anaemia and IDA in this population.
    Matched MeSH terms: Iron/deficiency; Anemia, Iron-Deficiency/ethnology; Anemia, Iron-Deficiency/epidemiology*; Anemia, Iron-Deficiency/parasitology
  13. Nadarajan VS, Eow GI
    Malays J Pathol, 2002 Dec;24(2):99-102.
    PMID: 12887168
    Iron deficiency is a major complication of regular blood donation as a result of regular iron loss from each donated blood unit. Ninety-two regular blood donors and 95 first time blood donors attending a hospital-based blood transfusion centre were assessed as to their haematological and iron status by blood counts and serum ferritin levels as an indicator of iron stores. All donors had passed the haemoglobin-screening test using a copper sulphate method prior to blood donation. Ferritin levels were found to be significantly lower among regular blood donors (47.8 mmol/L) as compared to first time blood donors (94.2 mmol/L). Iron deficiency as observed by low ferritin levels was seen in 7.4% of all first time donors as compared to 17.4% in regular donors. Male first time donors showed a low prevalence of iron deficiency but the prevalence significantly increased with regular blood donation. Female first time and regular blood donors however did not show any significant differences in prevalence of iron deficiency, with both groups exhibiting prevalence rates similar to male regular donors. The association between haemoglobin levels and iron deficiency was poor and the copper sulphate-screening test was found insensitive to anaemia with many donors passing the test and donating blood despite being anaemic. It is concluded that a high prevalence of iron deficiency is present among regular male blood donors and all female donors. Besides, the use of the copper sulphate screening test as a sole criterion for anaemia screening should be reviewed. Ferritin measurements should be included in the routine assessment of blood donors especially among regular blood donors.
    Matched MeSH terms: Anemia, Iron-Deficiency/blood; Anemia, Iron-Deficiency/epidemiology*
  14. Ahmad Z, Jaafar R, Md Hassan MH, Othman MS, Hashim A
    Family Physician, 1995;7:11-15.
    Anaemia still constitutes a public health problem in the world, especially in the developing countries (1). Nutritional deficiency remains a major causative factor (2). During pregnancy, growth of the foetus, placenta and the larger amount of circulating blood in the expectant mother will lead to an increase in the demand for nutrients, especially iron and folic acid. Many women start their lives with insufficient iron stores, but also, because of inadequate child spacing, they have little time to build up their iron levels between pregnancies. In pregnancy, anaemia has been shown to be associated with an increased risk of maternal and fetal morbidity and mortality (3,4,5). Iron and folic acid supplementation is routinely given to pregnant mothers in Malaysia. It is anticipated that pregnant mothers who comply strictly with the prescribed iron supplement will maintain adequate iron stores at parturition. However, the compliance rate among rural mothers in Kelantan is often poor (6). Kelantan is also one of the most socio-economically underdeveloped
    Matched MeSH terms: Iron
  15. Alkarkhi AF, Ismail N, Ahmed A, Easa Am
    Environ Monit Assess, 2009 Jun;153(1-4):179-85.
    PMID: 18504644 DOI: 10.1007/s10661-008-0347-x
    Statistical analysis of heavy metal concentrations in sediment was studied to understand the interrelationship between different parameters and also to identify probable source component in order to explain the pollution status of selected estuaries. Concentrations of heavy metals (Cu, Zn, Cd, Fe, Pb, Cr, Hg and Mn) were analyzed in sediments from Juru and Jejawi Estuaries in Malaysia with ten sampling points of each estuary. The results of multivariate statistical techniques showed that the two regions have different characteristics in terms of heavy metals selected and indicates that each region receives pollution from different sources. The results also showed that Fe, Mn, Cd, Hg, and Cu are responsible for large spatial variations explaining 51.15% of the total variance, whilst Zn and Pb explain only 18.93 of the total variance. This study illustrates the usefulness of multivariate statistical techniques for evaluation and interpretation of large complex data sets to get better information about the heavy metal concentrations and design of monitoring network.
    Matched MeSH terms: Environmental Pollutants/analysis*; Iron/analysis
  16. Le Nguyen Bao K, Tran Thuy N, Nguyen Huu C, Khouw I, Deurenberg P
    Asia Pac J Public Health, 2016 07;28(5 Suppl):94S-102S.
    PMID: 27052301 DOI: 10.1177/1010539516641506
    In a population sample of 385 children, 6 to 11 years old, venous blood parameters-hemoglobin (Hb), ferritin, red blood cell count (RBC), mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC), C-reactive protein (CRP), and α1-acid glycoprotein (AGP)-were determined to get insight into the iron status. The prevalence of anemia was 11.4%; 5.6% had iron deficiency (ID), whereas 0.4% had ID anemia. Correction for inflammation based on CRP and AGP did not markedly change the overall prevalence of ID and ID anemia. Stunted children had lower Hb and ferritin values compared with nonstunted children, and thin children had lower values compared with normal-weight or overweight and obese children. Many nonanemic children had alert values for RBC, MCV, MCH, and MCHC. It is concluded that although the prevalence of anemia is of the magnitude of a mild public health problem, the iron status of many nonanemic children is borderline, as indicated by a high number of children with low values for red blood cytology.
    Matched MeSH terms: Iron/blood; Iron/deficiency*; Anemia, Iron-Deficiency/epidemiology*
  17. Hassan R, Abdullah WZ, Nik Hussain NH
    PMID: 16438162
    The purpose of this study was to detect the frequency of iron deficiency anemia in women attending their first antenatal clinic at a Maternal and Child Health Clinic in Kubang Kerian, a district of Kelantan that is located on the East coast of Malaysia. A cross-sectional study was done over a two-month period and fifty-two Malay women were enrolled in this study. Red blood cell indices and serum ferritin were used as a screening tool for anemia and iron status. Eighteen patients (34.6%) were anemic. The majority were classified as having mild anemia (90%). Four of them had hypochromic microcytic anemia. Of 52 women, 7 had iron deficient erythropoiesis and 11 (61.1%) had iron deficient anemia. The prevalence of iron deficiency anemia in pregnant women was 21.2%, which is similar to other developing countries. The serum ferritin level was significantly associated with the hemoglobin level (p=0.003). Other red blood cell indices were not useful in predicting iron deficient erythropoiesis. It is important to detect iron deficient erythropoiesis during the first antenatal check-up, as it is an early manifestation of iron deficiency anemia. In conclusion, screening for iron deficient is recommended during first antenatal visit because iron deficiency anemia is still the leading cause of nutritional deficiency in pregnant women. This will initiate an early therapeutic intervention so as to reduce public health problem.
    Study site: Hopital Universiti Sains Malaysia (HUSM) and the Maternal and Child Health Clinic, Kubang Kerian, Kelantan, Malaysia
    Matched MeSH terms: Anemia, Iron-Deficiency/blood; Anemia, Iron-Deficiency/diagnosis; Anemia, Iron-Deficiency/epidemiology*
  18. Mahdy, Z.A., Rahana, A.R., Zaleha, M.I., Muhammad Za’im, S.H., Mukudan, K., Jumaida, A.B.
    Medicine & Health, 2017;12(1):27-33.
    MyJurnal
    Iron deficiency anemia is the most common form of anemia in pregnancy. The present study was carried out to determine the prevalence of antenatal anemia and iron deficiency in the Malaysian population and its correlation with sociodemographic and obstetric profile. It was a cross-sectional study conducted at an urban health clinic over a period of six months. A single blood sample was drawn from apparently healthy pregnant mothers at antenatal booking and sent for laboratory assessment of full blood count and serum ferritin as screening tools for anemia and iron status. SPSS version 19.0 was used for statistical analyses. The results showed that out of 250 subjects, 43.6% had anemia and 31.6% had iron deficiency. Whilst 47.7% of subjects with anemia were iron deficient, 19.1% of subjects without anemia were also iron deficient. Serum ferritin correlated negatively with period of gestation at booking (p<0.001), with 77.6% of these women not having prior iron supplements. Serum ferritin was also significantly lower among grandmultiparae (p=0.01). Iron deficiency was significantly (p=0.024) more common among Indians (42.5%) compared to Malays (33.5%) and Chinese (13.0%). In conclusion, continuation of the current practice of routine antenatal iron supplementation is still warranted and justifiable in Malaysia as there is high prevalence of iron deficiency in pregnancy not only in the presence of anemia but also in the presence of normal hemoglobin values. Keywords: anaemia, ferritn, pregnancy
    Matched MeSH terms: Anemia, Iron-Deficiency*
  19. Widowati W, Ginting CN, Lister INE, Girsang E, Amalia A, Wibowo SHB, et al.
    Trop Life Sci Res, 2020 Oct;31(3):127-144.
    PMID: 33214860 DOI: 10.21315/tlsr2020.31.3.9
    Skin aging is a complex natural process characterised by gradual diminishment of structural integrity and physiological imbalance of the skin tissue. Since the oxidative stress is tightly corelated to the skin aging process, the usage of antioxidant may serve as favourable strategies for slowing down the skin aging process. Mangosteen is an important fruit commodity and its extract had been extensively studied and revealing various biological activities. Present study aimed to assess the antioxidant and antiaging activity of mangosteen peel extract (MPE) and its phytochemical compounds. MPE and its compounds were subjected to ferric reducing antioxidant power (FRAP), hydroperoxide (H2O2) scavenging, anti-collagenase, anti-elastase, anti-hyaluronidase and anti-tyrosinase assay. MPE has the highest FRAP 116.31 ± 0.60 μM Fe(II) μg-1 extract, IC50 of MPE on H2O2 scavenging activity was 54.61 μg mL-1. MPE also has the highest anti elastase activity at IC50 7.40 μg mL-1. Alpha-mangostin showed potent anti-collagenase activity (IC50 9.75 μg mL-1). While gamma-mangostin showed potent anti-hyaluronidase (IC50 23.85 μg mL-1) and anti-tyrosinase (IC50 50.35 μg mL-1). MPE and its compounds were evaluated in vitro for antioxidant and antiaging activities. Current findings may provide scientific evidence for possible usage of mangosteen extract and its compounds as antioxidant and antiaging agent.
    Matched MeSH terms: Iron Radioisotopes
  20. Marvibaigi M, Amini N, Supriyanto E, Abdul Majid FA, Kumar Jaganathan S, Jamil S, et al.
    PLoS One, 2016;11(7):e0158942.
    PMID: 27410459 DOI: 10.1371/journal.pone.0158942
    Scurrula ferruginea (Jack) Danser is one of the mistletoe species belonging to Loranthaceae family, which grows on the branches of many deciduous trees in tropical countries. This study evaluated the antioxidant activities of S. ferruginea extracts. The cytotoxic activity of the selected extracts, which showed potent antioxidant activities, and high phenolic and flavonoid contents, were investigated in human breast cancer cell line (MDA-MB-231) and non-cancer human skin fibroblast cells (HSF-1184). The activities and characteristics varied depending on the different parts of S. ferruginea, solvent polarity, and concentrations of extracts. The stem methanol extract showed the highest amount of both phenolic (273.51 ± 4.84 mg gallic acid/g extract) and flavonoid contents (163.41 ± 4.62 mg catechin/g extract) and strong DPPH• radical scavenging (IC50 = 27.81 μg/mL) and metal chelation activity (IC50 = 80.20 μg/mL). The stem aqueous extract showed the highest ABTS•+ scavenging ability. The stem methanol and aqueous extracts exhibited dose-dependent cytotoxic activity against MDA-MB-231 cells with IC50 of 19.27 and 50.35 μg/mL, respectively. Furthermore, the extracts inhibited the migration and colony formation of MDA-MB-231 cells in a concentration-dependent manner. Morphological observations revealed hallmark properties of apoptosis in treated cells. The methanol extract induced an increase in ROS generation and mitochondrial depolarization in MDA-MB-231 cells, suggesting its potent apoptotic activity. The present study demonstrated that the S. ferruginea methanol extract mediated MDA-MB-231 cell growth inhibition via induction of apoptosis which was confirmed by Western blot analysis. It may be a potential anticancer agent; however, its in vivo anticancer activity needs to be investigated.
    Matched MeSH terms: Iron/metabolism
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