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Alpha lipoic Acid prevents pancreatic islet cells damage and dyslipidemia in streptozotocin-induced diabetic rats

Budin SB, Kee KP, Eng MY, Osman K, Bakar MA, Mohamed J

Malays J Med Sci, 2007 Jul;14(2):47-53.
PMID: 22993491 MyJurnal

In the present study, the effects of alpha lipoic acid (ALA) supplementation on glycemic control and lipid profile in streptozotocin (STZ)-induced diabetic rats have been evaluated. Sprague Dawley rats were divided into nondiabetic (NDM), diabetic without supplementation (No Suppl) and diabetic with ALA groups. ALA was orally administered once a day for 8 weeks with a dose of 100 mg/kg BW. Supplementation of ALA to STZ-induced rats prevented the severe damage to the islet cells of the pancreas and lowered the plasma glucose and glycated hemoglobin (HbA1c) levels. Supplementation of ALA also suppressed the increased of total cholesterol (TC), triglycerides and low density lipoprotein-cholesterol (LDL-C) levels in the plasma of diabetic rats as well as increased high density lipoproteincholesterol (HDL-C) levels. In conclusion, this study suggest that ALA may be effective in controlling glycemic status and improving dyslipidemia in streptozotocin-induced diabetic rats and has the potential in reducing cardiovascular complications due to diabetes mellitus.
Fulltext Toxic effects of Litsea elliptica Blume essential oil on red blood cells of Sprague-Dawley rats

Taib IS, Budin SB, Siti Nor Ain SM, Mohamed J, Louis SR, Das S, et al.

J Zhejiang Univ Sci B, 2009 Nov;10(11):813-9.
PMID: 19882755 DOI: 10.1631/jzus.B0920199

Litsea elliptica Blume leaves have been traditionally used as medicinal herbs because of its antimutagenicity, chemopreventative and insecticidal properties. In this study, the toxic effects of L. elliptica essential oil against Sprague-Dawley rat's red blood cells (RBCs) were evaluated. L. elliptica essential oil was given by oral gavage 5 times per week for 3 treated groups in the doses of 125, 250, and 500 mg/(kg body weight), respectively, and the control group received distilled water. Full blood count, RBC osmotic fragility, RBC morphological changes, and RBC membrane lipid were analyzed 28 d after the treatment. Although L. elliptica essential oil administration had significantly different effects on hemoglobin (Hb), mean cell hemoglobin concentration (MCHC), mean cell volume (MCV), and mean cell hemoglobin (MCH) in the experimental groups as compared to the control group (P<0.05), the values were still within the normal range. L. elliptica induced morphological changes of RBC into the form of echinocyte. The percentage of echinocyte increased significantly among the treated groups in a dose-response manner (P<0.001). The concentrations of RBC membrane phospholipids and cholesterol of all treated groups were significantly lower than those of control group (P<0.001). However, the RBC membrane osmotic fragility and total proteins of RBC membrane findings did not differ significantly between control and treated groups (P>0.05). It is concluded that structural changes in the RBC membrane due to L. elliptica essential oil administration did not cause severe membrane damage.
The effects of palm oil tocotrienol-rich fraction supplementation on biochemical parameters, oxidative stress and the vascular wall of streptozotocin-induced diabetic rats

Budin SB, Othman F, Louis SR, Bakar MA, Das S, Mohamed J

Clinics (Sao Paulo), 2009;64(3):235-44.
PMID: 19330251

OBJECTIVE: This study examined the effects of palm oil tocotrienol-rich fractions on streptozotocin-induced diabetic rats.
METHODS: Animals were divided into three groups: (i) normal non-diabetic (NDM), (ii) diabetic treated (tocotrienol-rich fractions - TRF) and (iii) diabetic untreated (non-TRF). The treatment group received oral administration of tocotrienol-rich fractions (200 mg/kg body weight) daily for eight weeks. The normal non-diabetic and the diabetic untreated groups were fed standard rat feed. Blood glucose and lipid profiles, oxidative stress markers and morphological changes of the thoracic aorta were evaluated.
RESULTS: Tocotrienol-rich fractions treatment reduced serum glucose and glycated hemoglobin concentrations. The tocotrienol-rich fractions group also showed significantly lower levels of plasma total cholesterol, low-density lipoprotein cholesterol, and triglyceride, as compared to the untreated group. The tocotrienol-rich fractions group had higher levels of high-density lipoprotein cholesterol, as compared to the untreated group. Superoxide dismutase activity and levels of vitamin C in plasma were increased in tocotrienol-rich fractions-treated rats. The levels of plasma and aorta malondealdehyde + 4-hydroxynonenal (MDA + 4-HNE) and oxidative DNA damage were significant following tocotrienol-rich fractions treatment. Electron microscopic examination showed that the normal morphology of the thoracic aorta was disrupted in STZ-diabetic rats. Tocotrienol-rich fractions supplementation resulted in a protective effect on the vessel wall.
CONCLUSION: These results show that tocotrienol-rich fractions lowers the blood glucose level and improves dyslipidemia. Levels of oxidative stress markers were also reduced by administration of tocotrienol-rich fractions. Vessel wall integrity was maintained due to the positive effects mediated by tocotrienol-rich fractions.
Nuclear factor-kappa B as a promising target for selenium chemoprevention in rat hepatocarcinogenesis

Alwahaibi NY, Budin SB, Mohamed J, Alhamdani A

J Gastroenterol Hepatol, 2010 Apr;25(4):786-91.
PMID: 20492335 DOI: 10.1111/j.1440-1746.2009.06160.x

Selenium's molecular mechanism for cancer chemoprevention remains unknown. We aimed to study the gene expression of nuclear factor-kappaB (NF-kappaB), tumor growth factor-alpha (TGF-alpha) and cyclin D1 and the effects of sodium selenite using preventive and therapeutic approaches in chemically-induced hepatocarcinogenesis in rats.
Fulltext Sexual function of malay women with type 2 diabetes mellitus: a preliminary study

Kamaralzaman S, Sidi H, Yau M, Budin SB, Sani A, Mohamed J

ASEAN Journal of Psychiatry, 2010;11(1):64-71.
MyJurnal

Objective: Female sexual dysfunction is a known complication of diabetes mellitus. The aims of this study is to estimate the prevalence of sexual dysfunction and the types of sexual dysfunction experienced by Malay women with type 2 diabetes mellitus.
Methods: Cross sectional study was conducted on married Malay women with type 2 diabetes mellitus, receiving treatment from two community clinics in Selangor, Malaysia. Female sexual function was assessed using Malay version of Female Sexual Function Index.
Results: This study found that sexual dysfunction was present among 18.2% women. Lack of libido was the commonest symptom among these women and was observed in 40.9% of women followed by sexual dissatisfaction (36.4%). Sexual arousal disorder was observed in 22.7%, 18.2% complained of lack of lubrication, and 22.7% had vaginal discomfort. Orgasmic dysfunction was found in only 4.5% of these women.
Conclusion: This preliminary research showed sexual desire disorder was the commonest type of sexual disorder among diabetic women.
Selenium supplementation reduced oxidative stress in diethylnitrosamine-induced hepatocellular carcinoma in rats

Mohamed J, Wei WL, Husin NN, Alwahaibi NY, Budin SB

Pak J Biol Sci, 2011 Dec 01;14(23):1055-60.
PMID: 22590839

Selenium in the form of sodium selenite (SSE) is an essential micronutrient which known to possess antioxidant and anticancer properties. This study emphasizes the role of selenium on oxidative stress in experimental rats with N-diethylnitrosamine (DEN) initiated and 2-acetylaminofluorene (2-AAF) promoted multistage hepatocellular carcinogenesis (HCC). Rats were divided randomly into six groups: negative control, positive control (DEN+2-AAF), preventive group (pre-SEE 4 weeks+DEN), preventive control (respective control for preventive group), therapeutic group (DEN+post-SSE 12 weeks) and therapeutic control (respective control for therapeutic group). SSE (4 mg L(-1)) was given to animals before initiation and during promotion phase of HCC. The levels of total protein (TP), conjugated diens (CD), malondialdehyde (MDA), fluorescent pigment (FP), antioxidant activity (AOA) and DNA damage were measured. Supplementation of SSE before the initiation phase of carcinogenicity significantly increased TP and AOA level (p < 0.05) while it decreased the levels of CD, MDA, DNA damage and FP (p < 0.05). Supplementation of SSE during the promotion phase of carcinogenicity significantly decreased the DNA damage and FP level (p < 0.05) and there were negative correlation between the level of AOA and with the level of FP and CD. Thus, supplementation of SSE reduced the adverse changes which occur in liver cancer. However, the chemoprevention effect of SSE was more pronounced when it was supplemented before initiation phase of cancer when compared to promotion phase.
Fulltext Relationship between sensory neuropathy and body imbalance among diabetic malay women. [Hubungan antara sensori neuropati dan ketidakseimbangan badan di kalangan wanita Melayu diabetik]

Kamaralzaman S, Budin SB, Mohamed J, Sidi H, Yau M, Sani A

Sains Malaysiana, 2011;40(8):945–951.

Neuropathy is a problem often suffered by patients with diabetes mellitus. Types of neuropathy that occur are peripheral neuropathy and autonomic neuropathy. This cross sectional study was conducted to determine the association between duration of diabetes and loss of protective sensation and the association between imbalance and loss of protective sensation among Malay women with diabetes mellitus. Eighty one Malay women with diabetes mellitus, aged 20 to 60 years from three clinics in Hulu Langat District participated in this study. Socio-demographic information were obtained from respondent using a questionnaire. Foot sensory evaluation was conducted using Semmes-Weinstein Monofilament
grade 5.07. Assessment of balance was done using Timed One-leg Stance. Chi-squared test was used to determine the association between the two variables. Result showed that 56.8% of respondent had loss of protective sensation on at least one foot. While, 17.3% had imbalance while eyes were open and 60.5% experienced imbalance while eyes were closed. However, there was no significant correlation (p<0.05) between imbalance while eyes opened [χ2=3.27, p=0.07] and while eyes close [χ2=0.29, p=0.59]) with loss of protective sensation in at least one foot. Similar result were obtained between duration of diabetes and the loss of protective sensation. (χ2=3.27, p=0.20). Although there was no association between these factors, a screening program should start early to ensure early problems are identified before more severe complications occur.
Keywords: Diabetes mellitus; imbalance; loss of protective sensation; Malay women
Study site: Klinik Kesihatan, Hulu Langat, Selangor, Malaysia
The role of oxidative stress and antioxidants in diabetic complications

Matough FA, Budin SB, Hamid ZA, Alwahaibi N, Mohamed J

Sultan Qaboos Univ Med J, 2012 Feb;12(1):5-18.
PMID: 22375253

Diabetes is considered to be one of the most common chronic diseases worldwide. There is a growing scientific and public interest in connecting oxidative stress with a variety of pathological conditions including diabetes mellitus (DM) as well as other human diseases. Previous experimental and clinical studies report that oxidative stress plays a major role in the pathogenesis and development of complications of both types of DM. However, the exact mechanism by which oxidative stress could contribute to and accelerate the development of complications in diabetic mellitus is only partly known and remains to be clarified. On the one hand, hyperglycemia induces free radicals; on the other hand, it impairs the endogenous antioxidant defense system in patients with diabetes. Endogenous antioxidant defense mechanisms include both enzymatic and non-enzymatic pathways. Their functions in human cells are to counterbalance toxic reactive oxygen species (ROS). Common antioxidants include the vitamins A, C, and E, glutathione (GSH), and the enzymes superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), and glutathione reductase (GRx). This review describes the importance of endogenous antioxidant defense systems, their relationship to several pathophysiological processes and their possible therapeutic implications in vivo.
Fulltext Nephroprotective effects of Zingiber zerumbet Smith ethyl acetate extract against paracetamol-induced nephrotoxicity and oxidative stress in rats

Abdul Hamid Z, Budin SB, Wen Jie N, Hamid A, Husain K, Mohamed J

J Zhejiang Univ Sci B, 2012 Mar;13(3):176-85.
PMID: 22374609 DOI: 10.1631/jzus.B1100133

Paracetamol (PCM) overdose can cause nephrotoxicity with oxidative stress as one of the possible mechanisms mediating the event. In this study, the effects of ethyl acetate extract of Zingiber zerumbet rhizome [200 mg per kg of body weight (mg/kg) and 400 mg/kg] on PCM-induced nephrotoxicity were examined. Rats were divided into five groups containing 10 rats each. The control group received distilled water while other groups were treated with extract alone (400 mg/kg), PCM alone (750 mg/kg), 750 mg/kg PCM+200 mg/kg extract (PCM+200-extract), and 750 mg/kg PCM+400 mg/kg extract (PCM+400-extract), respectively, for seven consecutive days. The Z. zerumbet extract was given intraperitoneally concurrent with oral administration of PCM. Treatment with Z. zerumbet extract at doses of 200 and 400 mg/kg prevented the PCM-induced nephrotoxicity and oxidative impairments of the kidney, as evidenced by a significantly reduced (P<0.05) level of plasma creatinine, plasma and renal malondialdehyde (MDA), plasma protein carbonyl, and renal advanced oxidation protein product (AOPP). Furthermore, both doses were also able to induce a significant increment (P<0.05) of plasma and renal levels of glutathione (GSH) and plasma superoxide dismutase (SOD) activity. The nephroprotective effects of Z. zerumbet extract were confirmed by a reduced intensity of renal cellular damage, as evidenced by histological findings. Moreover, Z. zerumbet extract administered at 400 mg/kg was found to show greater protective effects than that at 200 mg/kg. In conclusion, ethyl acetate extract of Z. zerumbet rhizome has a protective role against PCM-induced nephrotoxicity and the process is probably mediated through its antioxidant properties.
Bovine serum albumin: survival and osmolarity effect in bovine spermatozoa stored above freezing point

Nang CF, Osman K, Budin SB, Ismail MI, Jaffar FH, Mohamad SF, et al.

Andrologia, 2012 May;44 Suppl 1:447-53.
PMID: 21806660 DOI: 10.1111/j.1439-0272.2011.01203.x

Liquid nitrogen preservation in remote farms is a limitation. The goal of this study was to determine optimum temperature above freezing point for bovine spermatozoa preservation using bovine serum albumin (BSA) as a supplementation. Pooled semen sample from three ejaculates was subjected to various BSA concentration (1, 4, 8 and 12 mg ml(-1)), before incubation in different above freezing point temperatures (4, 25 and 37 °C). Viability assessment was carried out against time from day 0 (fresh sample) until all spermatozoa become nonviable. Optimal condition for bovine spermatozoa storage was at 4 °C with 1 mg ml(-1) BSA for almost 7 days. BSA improved bovine spermatozoa viability declining rate to 44.28% at day 4 and 57.59% at day 7 compared to control, with 80.54% and 98.57% at day 4 and 7 respectively. Increase in BSA concentration did not improve sperm viability. Our results also confirmed that there was a strong negative correlation between media osmolarity and bovine spermatozoa survival rate with r = 0.885, P < 0.0001. Bovine serum albumin helps to improve survival rate of bovine spermatozoa stored above freezing point.
Tocotrienol rich fraction prevents fenitrothion induced pancreatic damage by restoring antioxidant status

Budin SB, Han CM, Jayusman PA, Taib IS

Pak J Biol Sci, 2012 Jun 01;15(11):517-23.
PMID: 24191625

Fenitrothion (FNT) is extensively used as pesticide and may induce oxidative stress in various organs. Tocotrienol, a form of vitamin E found in palm oil, reduces oxidative impairments in pathological conditions. This study aims to investigate the effects of palm oil tocotrienol rich fraction (TRF) on fenitrothion-induced oxidative damage in rat pancreas. Forty male Sprague-Dawley rats were divided into four groups: control group, FNT group, TRF group and FNT+TRF group. Regimens FNT (20 mg kg(-1) b.wt.) and TRF (200 mg kg(-1) b.wt.) were force-fed for 28 consecutive days with control group only receiving corn oil. Chronic administration of fenitrothion significantly (p < 0.05) induced oxidative damage in pancreas of rats with elevated malondialdehyde and protein carbonyl level. Depletion of glutathione and significant (p < 0.05) reduction in antioxidant enzyme activities in pancreas homogenate additionally suggested induction of oxidative stress. Despite these changes in pancreas of intoxicated rats, no significant (p < 0.05) changes in blood glucose and pancreas histology were observed. Co-administration of FNT with TRF alleviated these oxidative changes and significantly (p < 0.05) restored antioxidant status. Enzymatic activities of Superoxide Dismutase (SOD) and Catalase (CAT) were normalized. In conclusion, tocotrienol rich fraction of palm oil prevents fenitrothion-induced pancreatic oxidative damage in rats.
Acute and subacute oral toxicity of Litsea elliptica Blume essential oil in rats

Budin SB, Siti Nor Ain SM, Omar B, Taib IS, Hidayatulfathi O

J Zhejiang Univ Sci B, 2012 Oct;13(10):783-90.
PMID: 23024045

Litsea elliptica Blume has been traditionally used to treat headache, fever, and stomach ulcer, and has also been used as an insect repellent. The acute and subacute toxicities of L. elliptica essential oil were evaluated orally by gavage in female Sprague-Dawley rats. For the acute toxicity study, L. elliptica essential oil was administered in doses from 500 to 4000 mg/kg (single dose), and in the subacute toxicity test, the following doses were used: 125, 250, and 500 mg/kg, for 28 consecutive days. In the acute toxicity study, L. elliptica essential oil caused dose-dependent adverse behaviours and mortality. The median lethal dose value was 3488.86 mg/kg and the acute non-observed-adversed-effect level value was found to be 500 mg/kg. The subacute toxicity study of L. elliptica essential oil did not reveal alterations in body weight, and food and water consumptions. The haematological and biochemical analyses did not show significant differences between control and treated groups in most of the parameters examined, except for the hemoglobin, mean cell hemoglobin concentration, mean cell volume, mean cell hemoglobin, serum albumin, and serum sodium. However, these differences were still within the normal range. No abnormalities or histopathological changes were observed in the liver, pancreatic islet of Langerhans, and renal glomerulous and tubular cells of all treated groups. In conclusion, L. elliptica essential oil can be classified in the U group, which is defined as a group unlikely to present an acute hazard according to World Health Organization (WHO) classification.
Fulltext Foot sensation status of Malay women with type 2 diabetes mellitus

Yong SP, Kamaralzaman S, Budin SB

Jurnal Sains Kesihatan Malaysia, 2012;10(2):43-47.
MyJurnal

This study aimed to identify the foot sensory status of Malay women with type 2 diabetes mellitus and to determine its relation with: demographic factors, glycated haemoglobin level in plasma, and body mass index. A cross-sectional study was conducted on 71 Malay women with type 2 diabetes mellitus who attend three health clinics in Hulu Langat District, Selangor. Foot sensation was assessed using the Semmes-Weinstein Monofilament 5.07 in nine locations on the plantar and dorsal of the feet. Loss of protective sensation was defined as inability to sense the monofilament in one or more sites of either foot. This study found that 56.3% of women had loss of protective sensation, with common sites being the heel, fifth metatarsal head, lateral mid-foot and little toe. Duration of diabetes mellitus were significantly related to foot sensation. The age, HbA1C level and body mass index did not show any significant correlation. Loss of protective sensation may lead to serious foot complication and therefore early screening involving multidisciplinary team is essential for prevention.
Protective role of Hibiscus sabdariffa calyx extract against streptozotocin induced sperm damage in diabetic rats

Idris MH, Budin SB, Osman M, Mohamed J

EXCLI J, 2012;11:659-669.
PMID: 27847454

Diabetes mellitus contributes to male sexual dysfunction and infertility by modulating oxidative damage. To date, a number of studies have demonstrated antioxidant properties of Hibiscus sabdariffa Linn. This study was designed to investigate the effects of H. sabdariffa UKMR-2 variety on sperm functioning of streptozotocin-induced diabetic rats. Male Sprague-Dawley rats were allotted into four groups, namely control group (C), H. sabdariffa extract (HSE) group, diabetes group (D) and diabetes plus HSE group (D+HSE). HSE (100 mg/ kg/body weight) was administered orally for 28 consecutive days. After 28-days of supplementation, the rats were sacrificed to obtain epididymal sperm. Administration of HSE significantly lowered the level of fasting blood glucose and increased plasma insulin level in D+HSE group as compared to D group (p<0.05). Sperm quality in the D+HSE group was improved with significantly higher sperm concentrations (p<0.05) and sperm motility (p<0.001) as well as lower percentage of sperm abnormality (p<0.05) as compared to the diabetic group. Plasma follicle-stimulating hormone (FSH) level was significantly elevated (p<0.05) in D+HSE group than in D group while no significant alteration in plasma testosterone and luteinizing hormone (LH) level were seen between groups. In conclusion, this study suggested that H. sabdariffa UKMR-2 variety has a potential protective role against diabetes-induced sperm damage.
Fenitrothion induced oxidative stress and morphological alterations of sperm and testes in male Sprague-Dawley rats

Taib IS, Budin SB, Ghazali AR, Jayusman PA, Louis SR, Mohamed J

Clinics (Sao Paulo), 2013 Jan;68(1):93-100.
PMID: 23420164

OBJECTIVE: Fenitrothion residue is found primarily in soil, water and food products and can lead to a variety of toxic effects on the immune, hepatobiliary and hematological systems. However, the effects of fenitrothion on the male reproductive system remain unclear. This study aimed to evaluate the effects of fenitrothion on the sperm and testes of male Sprague-Dawley rats.
METHODS: A 20 mg/kg dose of fenitrothion was administered orally by gavages for 28 consecutive days. Blood sample was obtained by cardiac puncture and dissection of the testes and cauda epididymis was performed to obtain sperm. The effects of fenitrothion on the body and organ weight, biochemical and oxidative stress, sperm characteristics, histology and ultrastructural changes in the testes were evaluated.
RESULTS: Fenitrothion significantly decreased the body weight gain and weight of the epididymis compared with the control group. Fenitrothion also decreased plasma cholinesterase activity compared with the control group. Fenitrothion altered the sperm characteristics, such as sperm concentration, sperm viability and normal sperm morphology, compared with the control group. Oxidative stress markers, such as malondialdehyde, protein carbonyl, total glutathione and glutathione S-transferase, were significantly increased and superoxide dismutase activity was significantly decreased in the fenitrothion-treated group compared with the control group. The histopathological and ultrastructural examination of the testes of the fenitrothion-treated group revealed alterations corresponding with the biochemical changes compared with the control group.
CONCLUSION: A 20 mg/kg dose of fenitrothion caused deleterious effects on the sperm and testes of Sprague-Dawley rats.
Fulltext Antioxidant Activity of Tocotrienol Rich Fraction Prevents Fenitrothion-induced Renal Damage in Rats

Budin SB, Han KJ, Jayusman PA, Taib IS, Ghazali AR, Mohamed J

J Toxicol Pathol, 2013 Jun;26(2):111-8.
PMID: 23914053 DOI: 10.1293/tox.26.111

Fenitrothion (FNT) is an organophosphate compound widely used as pesticide in Malaysia. The present study aims to investigate effects of palm oil tocotrienol rich fraction (TRF) on the renal damage of FNT-treated rats. A total of 40 male Sprague Dawley rats were divided into 4 groups randomly, the control, TRF, FNT and FNT+TRF groups. FNT (20 mg/kg b.w.) and TRF (200 mg/kg b.w.) were given orally for 28 days continuously. Rats from the FNT+TRF group were supplemented with TRF 30 minutes prior to administration of FNT. Rats were sacrificed after 28 days, and the kidneys were removed for determination of oxidative stress and histological analysis. Plasma was collected for determination of blood creatinine and urea level. Statistical analysis showed that palm oil TRF has a protective effect against renal oxidative damage induced by FNT. In the FNT+TRF group, malondialdehyde and protein carbonyl levels were significantly lower, while the glutathione level as well as superoxide dismutase and catalase activities were significantly higher compared with the FNT-treated group (p<0.05). As for renal function, there was a markedly lower urea level (p<0.05) in the FNT+TRF group compared with the FNT-treated group, but there was no significant difference in creatinine level. Besides, total protein also showed no significant difference for all groups of rats (p>0.05). Histological evaluation also revealed that the FNT+TRF group had less glomerulus and renal tubule damage than the FNT-treated group. In conclusion, palm oil TRF was able to reduce oxidative stress and renal damage in FNT-treated rats.
Nutritional status and dietary intakes of children aged 6 months to 12 years: findings of the Nutrition Survey of Malaysian Children (SEANUTS Malaysia)

Poh BK, Ng BK, Siti Haslinda MD, Nik Shanita S, Wong JE, Budin SB, et al.

Br J Nutr, 2013 Sep;110 Suppl 3:S21-35.
PMID: 24016764 DOI: 10.1017/S0007114513002092

The dual burden of malnutrition reportedly coexists in Malaysia; however, existing data are scarce and do not adequately represent the nutritional status of Malaysian children. The Nutrition Survey of Malaysian Children was carried out with the aim of assessing the nutritional status in a sample of nationally representative population of children aged 6 months to 12 years. A total of 3542 children were recruited using a stratified random sampling method. Anthropometric measurements included weight, height, mid-upper arm circumference, and waist and hip circumferences. Blood biochemical assessment involved analyses of Hb, serum ferritin, and vitamins A and D. Dietary intake was assessed using semi-quantitative FFQ, and nutrient intakes were compared with the Malaysian Recommended Nutrient Intakes (RNI). The prevalence of overweight (9·8%) and obesity (11·8%) was higher than that of thinness (5·4%) and stunting (8·4%). Only a small proportion of children had low levels of Hb (6·6%), serum ferritin (4·4%) and vitamin A (4·4%), but almost half the children (47·5%) had vitamin D insufficiency. Dietary intake of the children was not compatible with the recommendations, where more than one-third did not achieve the Malaysian RNI for energy, Ca and vitamin D. The present study revealed that overnutrition was more prevalent than undernutrition. The presence of high prevalence of vitamin D insufficiency and the inadequate intake of Ca and vitamin D are of concern. Hence, strategies for improving the nutritional status of Malaysian children need to consider both sides of malnutrition and also put emphasis on approaches for the prevention of overweight and obesity as well as vitamin D insufficiency.
Fulltext The protective effect of aqueous extracts of roselle (Hibiscus sabdariffa L. UKMR-2) against red blood cell membrane oxidative stress in rats with streptozotocin-induced diabetes

Mohamed J, Shing SW, Idris MH, Budin SB, Zainalabidin S

Clinics (Sao Paulo), 2013 Oct;68(10):1358-63.
PMID: 24212844 DOI: 10.6061/clinics/2013(10)11

OBJECTIVES: The aim of this study was to investigate the protective effects of aqueous extracts of roselle (Hibiscus sabdariffa L. UKMR-2) against red blood cell (RBC) membrane oxidative stress in rats with streptozotocin-induced diabetes.
METHODS: Forty male Sprague-Dawley rats weighing 230-250 g were randomly divided into four groups (n = 10 rats each): control group (N), roselle-treated control group, diabetic group, and roselle-treated diabetic group. Roselle was administered by force-feeding with aqueous extracts of roselle (100 mg/kg body weight) for 28 days.
RESULTS: The results demonstrated that the malondialdehyde levels of the red blood cell membranes in the diabetic group were significantly higher than the levels in the roselle-treated control and roselle-treated diabetic groups. The protein carbonyl level was significantly higher in the roselle-treated diabetic group than in the roselle-treated control group but lower than that in the diabetic group. A significant increase in the red blood cell membrane superoxide dismutase enzyme was found in roselle-treated diabetic rats compared with roselle-treated control rats and diabetic rats. The total protein level of the red blood cell membrane, osmotic fragility, and red blood cell morphology were maintained.
CONCLUSION: The present study demonstrates that aqueous extracts of roselle possess a protective effect against red blood cell membrane oxidative stress in rats with streptozotocin-induced diabetes. These data suggest that roselle can be used as a natural antioxidative supplement in the prevention of oxidative damage in diabetic patients.
Tocotrienol-rich fraction from palm oil prevents oxidative damage in diabetic rats

Matough FA, Budin SB, Hamid ZA, Abdul-Rahman M, Al-Wahaibi N, Mohammed J

Sultan Qaboos Univ Med J, 2014 Feb;14(1):e95-e103.
PMID: 24516761

This study was carried out to determine the effects of tocotrienol-rich fraction (TRF) (200 mg/Kg) on biomarkers of oxidative stress on erythrocyte membranes and leukocyte deoxyribonucleic acid (DNA) damage in streptozotocin (STZ)-induced diabetic rats.
Fulltext Aortic remodelling in chronic nicotine-administered rat

Zainalabidin S, Budin SB, Ramalingam A, Lim YC

Korean J. Physiol. Pharmacol., 2014 Oct;18(5):411-8.
PMID: 25352761 DOI: 10.4196/kjpp.2014.18.5.411

Vascular remodelling is an adaptive mechanism, which counteracts pressure changes in blood circulation. Nicotine content in cigarette increases the risk of hypertension. The exact relationship between nicotine and vascular remodelling still remain unknown. Current study was aimed to determine the effect of clinically relevant dosage of nicotine (equivalent to light smoker) on aortic reactivity, oxidative stress markers and histomorphological changes. Twelve age-matched male Sprague-Dawley rats were randomly divided into two groups, i.e.: normal saline as control or 0.6 mg/kg nicotine for 28 days (i.p., n=6 per group). On day-29, the rats were sacrificed and the thoracic aorta was dissected immediately for further studies. Mean arterial pressure (MAP) and pulse pressure (PP) of nicotine-treated vs. control were significantly increased (p<0.05). Nicotine-treated group showed significant (p<0.05) increase tunica media thickness, and decrease in lumen diameter, suggesting vascular remodelling which lead to prior hypertension state. The phenylephrine (PE)-induced contractile response in nicotine group was significantly higher than control group (ED50=1.44×10(5) M vs. 4.9×10(6) M) (p<0.05~0.001). However, nicotine-treated rat showed significantly lower endothelium-dependent relaxation response to acetylcholine (ACh) than in control group (ED50=6.17×10(7) M vs. 2.82×10(7) M) (p<0.05), indicating loss of primary vascular function. Malondialdehyde (MDA), a lipid peroxidation marker was significantly higher in nicotine group. Superoxide dismutase (SOD) enzymatic activity and glutathione (GSH) were all reduced in nicotine group (p<0.05) vs. control, suggesting nicotine induces oxidative imbalance. In short, chronic nicotine administration impaired aortic reactivity, probably via redox imbalance and vascular remodelling mechanism.

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