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Fulltext Effect of Nigella sativa and its bioactive compound on type 2 epithelial to mesenchymal transition: a systematic review

Nordin A, Kamal H, Yazid MD, Saim A, Idrus R

BMC Complement Altern Med, 2019 Oct 30;19(1):290.
PMID: 31666058 DOI: 10.1186/s12906-019-2706-2

BACKGROUND: Nigella sativa or commonly known as black seed or black cumin is one of the most ubiquitous complementary medicine. Epithelial to mesenchymal transition (EMT) of type 2 is defined by the balance between wound healing and tissue fibrosis, which is dependent to the state of inflammation. This systematic review is conducted to provide an overview regarding the reported effect of Nigella sativa and its bioactive compound on the type 2 EMT.
METHODS: A search was done in EBSCOHOST, OVID and SCOPUS database to obtain potentially relevant articles that were published between 1823 and August 2019. This review includes studies that focus on the effect of Nigella sativa and its bioactive compound on the events related to type 2 EMT.
RESULTS: A total of 1393 research articles were found to be potentially related to the effect of Nigella sativa and its bioactive compound, thymoquinone on Type 2 EMT. After screening was done, 22 research articles met inclusion criteria and were included in this review. Majority of the studies, reported better wound healing rate or significant prevention of tissue inflammation and organ fibrosis following Nigella sativa or thymoquinone treatments. In terms of wound healing, studies included reported progression of EMT related pathological changes after treatment with Nigella sativa or thymoquinone. Alternatively, in terms of fibrosis and inflammation, studies included reported reversal of pathological changes related to EMT after treatment with Nigella sativa or thymoquinone.
CONCLUSION: Through this review, Nigella sativa and thymoquinone have been associated with events in Type 2 EMT. They have been shown to promote wound healing, attenuate tissue inflammation, and prevent organ fibrosis via regulation of the EMT process.
Assessing the financial burden of hemodialysis treatment in Malaysia

Mohd Fadzli NFA, Mohd Rasani AA, Keng SL

Belitung Nurs J, 2021;7(6):529-534.
PMID: 37497291 DOI: 10.33546/bnj.1804

BACKGROUND: Patients with chronic kidney disease (CKD) spend substantial money on hemodialysis (HD) treatment. The growing intersection between socioeconomic status and financial burden represents an emerging challenge to the CKD community.
OBJECTIVE: This study assessed the financial burden of HD treatment on patients at a Malaysian tertiary teaching hospital.
METHODS: A cross-sectional study was carried out in the HD unit at a Malaysian tertiary teaching hospital from January to February 2021. Patients undergoing HD were purposively selected. A self-administered questionnaire was used to collect data on socio-demographic, finances, the patient's health history, treatment costs, and healthcare utilization. In addition, Pearson Chi-Square tests were used to analyze the data.
RESULTS: A total of 100 patients receiving HD treatment were included in the study. The mean age was 62.06 years (SD = 27.50), with 52% reporting moderate financial burdens. The financial burden was associated with employment status, salary, and income class among HD patients (p <0.05).
CONCLUSION: Evidence showed a large proportion of Malaysian patients receiving HD treatment came from the B40 income bracket. The findings indicate that financial burdens can impact HD patients and are related to employment status, salary, and income class. Therefore, the ability to identify HD patients' financial needs is critical in nursing practice.
Genotoxicity and cytotoxicity of ovine collagen on human dermal fibroblasts

Busra FM, Chowdhury SR, Saim AB, Idrus RB

Saudi Med J, 2011 Dec;32(12):1311-2.
PMID: 22159390
Growth medium with low serum and transforming growth factor beta 3 promotes better chondrogenesis of bone marrow-derived stem cells in vitro and in vivo

Alfaqeh HH, Hui CK, Saim AB, Idrus RB

Saudi Med J, 2011 Jun;32(6):640-1.
PMID: 21666950
Fulltext Development and empirical study of international student satisfaction model of online course learning interaction in chinese universities

Wang X, Hassan AB, Pyng HS, Ye H

Educ Inf Technol (Dordr), 2023 May 22.
PMID: 37361823 DOI: 10.1007/s10639-023-11752-2

COVID-19 has disrupted education internationalisation around the world, making online learning a necessary means of learning. This study proposes an International Student Satisfaction Index Model (ISSM) on the interaction of online international courses in Chinese universities, aiming to investigate the potential factors that affect international students' online learning interaction. Based on the large-scale online course practice in Chinese universities during the pandemic, this study adopted a stratified random sampling method to select 320 international students participating in online courses as a research sample. The model proposed in this study includes four antecedent variables, one target variable, and one outcome variable. This study is quantitative, using SPSS26.0 and AMOS 21.0 to analyse the collected empirical data, and the results verify the nine research hypotheses proposed and the applicability of the online course international students' satisfaction index model (ISSM) proposed. The research results provide strong theoretical and practical support for international students' satisfaction with online course learning interaction, which is conducive to the reform of online courses and improving international students' retention rate in the online course.
Antihypertensive effect of piper sarmentosum in l-name-induced hypertensive rats

Nik Aloesnisa Nik Mohd Alwi, Zaiton Zakaria, Nor Anita Megat Mohd Nordin, Azizah Ugusman, Aminuddin Abdul Hamid Karim

Sains Malaysiana, 2018;47:2421-2428.

Hypertension is one of the risk factors for cardiovascular diseases and has been associated with about 13% of global deaths
worldwide. Oxidative stress and reduced nitric oxide (NO) bioavailability contribute to the development of endothelial
dysfunction and subsequently hypertension. Nɷ-nitro-L-arginine methyl ester hydrochloride (L-NAME) inhibits NO synthesis;
leading to hypertension. Piper sarmentosum (PS) is an herb with antioxidant, antiatherosclerosis and antiinflammation
properties. PS also stimulated NO production by endothelial cells. The aim of this study was to determine the effects of
aqueous extract of Piper sarmentosum (AEPS) on blood pressure, oxidative stress and the level of nitric oxide in L-NAMEinduced hypertensive rats. Hypertension was induced by oral administration of L-NAME (100 mg/L) in drinking water for
four weeks. The rats were concurrently treated with AEPS by oral gavage in serial doses (125, 250 and 500 mg/kg/day).
Blood pressure was measured using non-invasive tail-cuff method at baseline and fortnightly thereafter. Serum level of
NO and an oxidative stress marker, malondialdehyde (MDA) were measured at baseline and at the end of treatment. The
results showed that treatment with three different doses of AEPS successfully reduced systolic blood pressure (p<0.001),
diastolic blood pressure (p<0.05) and mean arterial pressure (p<0.05) in L-NAME-induced hypertensive rats. Treatment
with AEPS also reduced MDA level (p<0.001) and increased serum NO (p<0.001) in L-NAME-induced hypertensive rats.
The findings showed that AEPS decreased blood pressure by protecting against oxidative stress and increasing NO in
L-NAME-induced hypertensive rats.
Fulltext Abdominal obesity and high-sensitivity c-reactive protein level among malay obese adults in Kuantan, Malaysia

Siti Zuhaidah Shahadan, Muhammad Lokman Md. Isa, Azlina Daud, Ali Aminuddin Mohd Rasani, Muhammad Ibrahim, Samsul Deraman

International Medical Journal Malaysia, 2018;17(1):79-86.
MyJurnal

Introduction: Abdominal obesity and inflammation are two independent risk factors for cardiovascular disease. However, the inter-relationship between these two factors among Malay population is fragmented. The purpose of this study is to determine the association between waist circumference as a measure of abdominal obesity and high-sensitivity C-reactive protein as an indicator of inflammation status among Malay obese adults in Kuantan, Pahang. Materials and Methods: Ninety-three apparently healthy obese adults (BMI between 27.5 and 39.9 kg/m2 ) aged between 20 to 62 years old were recruited in this study (68% men and 32% women). Circumference tape was used to measure the waist circumference and fasting venous blood was obtained to determine the high-sensitivity C-reactive protein level. Results: On average, the waist circumference of obese men and women was 103 cm (SD = 8.7) and 94 cm (SD = 7.0), respectively. The median (IQR) of the hs-CRP level of the study participant was 3.80 mg/L (1.5, 10.1). The Kendall’s Tau correlation reveals that there is a significant positive linear correlation between waist circumference and hs -CRP level in obese men (r (30) = 0.355, p = 0.006) and women (r (63) = 0.177, p = 0.043). Conclusion: There is a significant inter-relationship between waist circumference and hs-CRP level among apparently healthy obese adults in Kuantan, Pahang. This study suggests that assessment of hs-CRP level is beneficial to predict the risk for future cardiovascular disease event and facilitate the management of obesity in this population. A prospective clinical study is recommended to confirm the findings.
Fulltext Technology advancement enabling the link of gut microbiota with obesity and metabolic disorder

Hartini Yusof, Mohamad Shafiq Aazmi, Teh Lay Kek, Mohd Zaki Salleh, Ili Ng Abdullah, Aminuddin Ahmad, et al.

Jurnal Sains Kesihatan Malaysia, 2015;13(1):77-91.
MyJurnal

Obesity is a growing epidemic due to an accelerated phase of industrialization and urbanization with the overfed people
now outnumbered the underfed. It is the major public health problem with a lot of research interest as it is associated
with many complicated chronic disorders such as type-2 diabetes, cardiovascular diseases (CVD) and cancers. A global
estimation of 2.8 million deaths per year is due to obesity and there are tremendous on-going efforts to identify hosts
and environmental factors that infl uence the cause and pathogenesis of obesity. Concerted efforts from different research
groups had successfully shown that obese subjects have altered composition of gut microbiota and transplantation of this
microbiota infl uences body weight in the germ-free recipient mice. The advancement of technology had made possible
the study of gut microbiota which was unculturable for better understanding of their impact to human health. Rapid
deep sequencing of DNA at reasonable cost through various options of platforms followed by data analysis using robust
bioinformatic tools are an important way of analysing the gut microbiome. Here we review the role of gut microbiota
which modulates host’s metabolic functions and gene expression, facilitating the extraction and storage of energy from the
ingested dietary substances and leading to body-weight gain. We will discuss on the different techniques used, focusing
on the high-defi nition technologies for the determination of the composition, function and ecology of gut microbiota. This
allows the appropriate selection of platform which becomes the key for success of subsequent research.
Effectiveness of hot oil treatment on cultivated 15 year-old Acacia hybrid against Coriolus Versicolors, Gloeophyllum Trabeum and Pycnoporus Sanguineus

Razak Wahab, Izyan Khalid, Tamer A. Tabet, Aminuddin Mohamed, Othman Sulaiman, Rafid MD. Salim, et al.

Sains Malaysiana, 2012;41:163-169.

The effectiveness of the hot oil treatment process on 15 year old cultivated Acacia hybrid was studied. Accelerated laboratory durability studies were conducted on the hot oil treated Acacia hybrid inoculated with fungi Coriolus versicolors, Gloeophyllum trabeum and Pycnoporus sanguineus. The logs of Acacia hybrid were harvested, segregated into bottom, middle and top portions, and later were oil-heat treated in an organic palm oil at temperatures of 180, 200 and 220°C for the duration of 30, 60 and 90 min. The wood samples that were dried and ground into sawdust was air-dried again before undergoing accelerated laboratory durability tests. Untreated samples were used as control. The durability of the wood increases with an increase in temperature and duration of the treatment. The hot oil treated samples could reduce the attack of G. trabeum from 20.89%, 20.94% and 21.29% in the control samples to 0.88-4.07%, 1.22-4.84% and 1.28-4.22% at bottom, middle and top portions, respectively. The attack of C. versicolors were reduced from 26.59%, 30.28% and 34.79% in the control samples to 2.89-9.41%, 3.88-16.84 and 4.27-17.34% at bottom, middle and top portions. However, the attacked of P. sanguineus were least effective with 31.42%, 36.33% and 36.55% in control samples to 3.26-12.55%, 4.67-15.36% and 4.69-19.22% at bottom, middle and top portions. Massive colonization of mycelia occurs in vessels of the untreated Acacia hybrid wood in comparison to the hot oil treated wood when observed through scanning electron microscope.
Fulltext Air quality in wood-based small and medium enterprises in Selangor

Noradila Mohamed, Murni Amirra Mohd Aminuddin, Zitty Sarah Ismail, Nurzulaifa Shaheera Erne Mohd Yasim, Nik Azlin Nik Ariffin

Science Letters, 2018;12(2):37-44.
MyJurnal

Wood-based Industries was known to generate various airborne pollutants such as wood and dust. This study was conducted to determine air quality in wood-based Small and Medium Enterprises (SMEs) in Malaysia. The determination of total dust and respirable dust was conducted based on National Institute of Occupational Safety and Health (NIOSH) 0500 and 0600. Study found that 38.1% (n=16) of the total dust exceed 5 mg/m³ in Schedule 1 of USECHH 2000. None of the respirable dust concentration exceeds 5 mg/m3 of wood dust concentration by Schedule 1 of USECHH 2000 and OSHA but 4.8% (n = 2) had exceed 3mg/m3 by ACGIH. In conclusion, dust and total volatile organic compound was found in wood-based SME where few total dust concentrations for both workplace environment level had exceeded 5mg/m3 but none was seen for respirable dust concentration.
Posterolateral spinal fusion with ostegenesis induced BMSC seeded TCP/HA in a sheep model

Shamsul BS, Tan KK, Chen HC, Aminuddin BS, Ruszymah BH

Tissue Cell, 2014 Apr;46(2):152-8.
PMID: 24630213 DOI: 10.1016/j.tice.2014.02.001

Autogenous bone graft is the gold standard for fusion procedure. However, pain at donor site and inconsistent outcome have left a surgeon to venture into some other technique for spinal fusion. The objective of this study was to determine whether osteogenesis induced bone marrow stem cells with the combination of ceramics granules (HA or TCP/HA), and fibrin could serve as an alternative to generate spinal fusion. The sheep's bone marrow mesenchymal stem cells (BMSCs) were aspirated form iliac crest and cultured for several passages until confluence. BMSCs were trypsinized and seeded on hydroxyapatite scaffold (HA) and tricalcium phosphate/hydroxyapatite (TCP/HA) for further osteogenic differentiation in the osteogenic medium one week before implantation. Six adult sheep underwent three-level, bilateral, posterolateral intertransverse process fusions at L1-L6. Three fusion sites in each animal were assigned to three treatments: (a) HA constructs group/L1-L2, (b) TCP/HA constructs group/L2-L3, and (c) autogenous bone graft group/L5-L6. The spinal fusion segments were evaluated using radiography, manual palpation, histological analysis and scanning electron microscopy (SEM) 12 weeks post implantation. The TCP/HA constructs achieved superior lumbar intertransverse fusion compared to HA construct but autogenous bone graft still produced the best fusion among all.
Fulltext The relationships between thyroid hormones and thyroid-stimulating hormone with lipid profile in euthyroid men

Chin KY, Ima-Nirwana S, Mohamed IN, Aminuddin A, Johari MH, Ngah WZ

Int J Med Sci, 2014;11(4):349-55.
PMID: 24578612 DOI: 10.7150/ijms.7104

Alteration in lipid profile is a common observation in patients with thyroid dysfunction, but the current knowledge on the relationship between lipids and thyroid hormone levels in euthyroid state is insufficient. The current study aimed to determine the association between thyroid hormones and thyroid-stimulating hormone (TSH) with lipid profile in a euthyroid male population.
Fulltext Serum osteocalcin is significantly related to indices of obesity and lipid profile in Malaysian men

Chin KY, Ima-Nirwana S, Mohamed IN, Ahmad F, Ramli ES, Aminuddin A, et al.

Int J Med Sci, 2014;11(2):151-7.
PMID: 24465160 DOI: 10.7150/ijms.7152

Recent studies revealed a possible reciprocal relationship between the skeletal system and obesity and lipid metabolism, mediated by osteocalcin, an osteoblast-specific protein. This study aimed to validate the relationship between serum osteocalcin and indices of obesity and lipid parameters in a group of Malaysian men.
Fulltext Thyroid-stimulating hormone is significantly associated with bone health status in men

Chin KY, Ima-Nirwana S, Mohamed IN, Aminuddin A, Johari MH, Ngah WZ

Int J Med Sci, 2013;10(7):857-63.
PMID: 23781131 DOI: 10.7150/ijms.5870

Recent studies revealed a novel association between thyroid-stimulating hormone (TSH) and bone health status in healthy male populations. The present study aimed to validate this association and provide new information on the relationship between TSH levels and calcaneal speed of sound (SOS) in men.
Fulltext The potential of intra-articular injection of chondrogenic-induced bone marrow stem cells to retard the progression of osteoarthritis in a sheep model

Al Faqeh H, Nor Hamdan BM, Chen HC, Aminuddin BS, Ruszymah BH

Exp Gerontol, 2012 Jun;47(6):458-64.
PMID: 22759409 DOI: 10.1016/j.exger.2012.03.018

In recent years, the use of bone marrow mesenchymal stem cell (BMSC) implantation has provided an alternative treatment for osteoarthritis. The objective of this study is to determine whether or not an intra-articular injection of a single dose of autologous chondrogenic induced BMSC could retard the progressive destruction of cartilage in a surgically induced osteoarthritis in sheep. Sheep BMSCs were isolated and divided into two groups. One group was cultured in chondrogenic media containing (Ham's F12:DMEM, 1:1) FD+1% FBS+5 ng/ml TGFβ3+50 ng/ml IGF-1 (CM), and the other group was cultured in the basal media, FD+10% FBS (BM). The procedure for surgically induced osteoarthritis was performed on the donor sheep 6 weeks prior to intra-articular injection into the knee joint of a single dose of BMSC from either group, suspended in 5 ml FD at density of 2 million cells/ml. The control groups were injected with basal media, without cells. Six weeks after injection, gross evidence of retardation of cartilage destruction was seen in the osteoarthritic knee joints treated with CM as well as BM. No significant ICRS (International Cartilage Repair Society) scoring was detected between the two groups with cells. However macroscopically, meniscus repair was observed in the knee joint treated with CM. Severe osteoarthritis and meniscal injury was observed in the control group. Interestingly, histologically the CM group demonstrated good cartilage histoarchitecture, thickness and quality, comparable to normal knee joint cartilage. As a conclusion, intra-articular injection of a single dose of BMSC either chondrogenically induced or not, could retard the progression of osteoarthritis (OA) in a sheep model, but the induced cells indicated better results especially in meniscus regeneration.
Study site: Universiti Kebangsaan Malaysia, Kuala Lumpur
Hypoglycemic effects of cocoa (Theobroma cacao L.) autolysates

Sarmadi B, Aminuddin F, Hamid M, Saari N, Abdul-Hamid A, Ismail A

Food Chem, 2012 Sep 15;134(2):905-11.
PMID: 23107706 DOI: 10.1016/j.foodchem.2012.02.202

Fat, alkaloid and polyphenol contents of two clones of cocoa (UIT1 and PBC 140) were removed and the remaining powder was autolyzed at pH 3.5 and 5.2. Based on the results, autolysates of UIT produced at pH 3.5 exhibited the highest ability to inhibit α-amylase activity. However, no α-glucosidase inhibition activity was observed under the conditions specified. Autolysates produced under pH 3.5 caused the highest amount of insulin secretion. In streptozotocin-diabetic rats, all cocoa autolysates significantly decreased blood glucose at 4h. To assure that the results from the assays were not due to the polyphenols of cocoa autolysates qualitative and quantitative tests were applied. According to their results cocoa autolysates were found to be free from polyphenols. Analysis of amino acid composition revealed that cocoa autolysates were abundant in hydrophobic amino acids. It can be suggested that besides other compounds of cocoa, its peptides and amino acids could contribute to its health benefits.
Fulltext Human respiratory epithelial cells from nasal turbinate expressed stem cell genes even after serial passaging

Ruszymah BH, Izham BA, Heikal MY, Khor SF, Fauzi MB, Aminuddin BS

Med J Malaysia, 2011 Dec;66(5):440-2.
PMID: 22390097 MyJurnal

Current development in the field of tissue engineering led to the idea of repairing and regenerating the respiratory airway through in vitro reconstruction using autologous respiratory epithelial (RE). To ensure the capability of proliferation, the stem cell property of RE cells from the nasal turbinate should be evaluated. Respiratory epithelial cells from six human nasal turbinates were harvested and cultured in vitro. The gene expression of FZD-9 and BST-1 were expressed in passage 2 (P2) and passage 4 (P4). The levels of expression were not significant between both passages. The RE cells exhibit the stem cell properties, which remains even after serial passaging.
Identification of suitable culture condition for expansion and osteogenic differentiation of human bone marrow stem cells

Chowdhury SR, Ng MH, Hassan NS, Aminuddin BS, Ruszymah BH

Hum. Cell, 2012 Sep;25(3):69-77.
PMID: 22968953

This study was undertaken in order to identify the best culture strategy to expand and osteogenic differentiation of human bone marrow stem cells (hBMSCs) for subsequent bone tissue engineering. In this regard, the experiment was designed to evaluate whether it is feasible to bypass the expansion phase during hBMSCs differentiation towards osteogenic lineages by early induction, if not identification of suitable culture media for enhancement of hBMSCs expansion and osteogenic differentiation. It was found that introduction of osteogenic factors in alpha-minimum essential medium (αMEM) during expansion phase resulted in significant reduction of hBMSCs growth rate and osteogenic gene expressions. In an approach to identify suitable culture media, the growth and differentiation potential of hBMSCs were evaluated in αMEM, F12:DMEM (1:1; FD), and FD with growth factors. It was found that αMEM favors the expansion and osteogenic differentiation of hBMSCs compared to that in FD. However, supplementation of growth factors in FD, only during expansion phase, enhances the hBMSCs growth rate and significantly up-regulates the expression of CBFA-1 (the early markers of osteogenic differentiation) during expansion, and, other osteogenic genes at the end of induction compared to the cells in αMEM and FD. These results suggested that the expansion and differentiation phase of the hBMSCs should be separately and carefully timed. For bone tissue engineering, supplementation of growth factors in FD only during the expansion phase was sufficient to promote hBMSCs expansion and differentiation, and preferably the most efficient culture condition.
Bone marrow and adipose stem cells can be tracked with PKH26 until post staining passage 6 in in vitro and in vivo

Ude CC, Shamsul BS, Ng MH, Chen HC, Norhamdan MY, Aminuddin BS, et al.

Tissue Cell, 2012 Jun;44(3):156-63.
PMID: 22402173 DOI: 10.1016/j.tice.2012.02.001

Tracking of transplanted cells has become an important procedure in cell therapy. We studied the in vitro dye retention, survival and in vivo tracking of stem cells with PKH26 dye. Sheep BMSCs and ADSCs were labeled with 2, 4 and 8 μmol of PKH26 and monitored for six passages. Labeled BMSCs and ADSCs acquired mean cumulative population doubling of 12.7±0.4 and 14.6±0.5; unlabeled samples had 13.8±0.5 and 15.4±0.6 respectively. Upon staining with 2, 4 and 8 μmol PKH26, BMSCs had retentions of 40.0±5.8, 60.0±2.9 and 95.0±2.9%, while ADSCs had 92.0±1.2, 95.0±1.2 and 98.0±1.2%. ADSCs retentions were significantly higher at 2 and 4 μmol. On dye retention comparison at 8 μmol and 4 μmol for BMSCs and ADSCs; ADSCs were significantly higher at passages 2 and 3. The viability of BMSCs reduced from 94.0±1.2% to 90.0±0.6% and ADSCs from 94.0±1.2% to 52.0±1.2% (p<0.05) after 24h. BMSCs had significant up regulation of the cartilage genes for both the labeled and the unlabeled samples compared to ADSCs (p<0.05). PKH26 fluorescence was detected on the resected portions of the regenerated neo-cartilage. The recommended concentration of PKH26 for ADSCs is 2 μmol and BMSCs is 8 μmol, and they can be tracked up to 49 days.
Stem cell genes are poorly expressed in chondrocytes from microtic cartilage

Ishak MF, Chua KH, Asma A, Saim L, Aminuddin BS, Ruszymah BH, et al.

Int J Pediatr Otorhinolaryngol, 2011 Jun;75(6):835-40.
PMID: 21543123 DOI: 10.1016/j.ijporl.2011.03.021

This study was aimed to see the difference between chondrocytes from normal cartilage compared to chondrocytes from microtic cartilage. Specific attentions were to characterize the growth of chondrocytes in terms of cell morphology, growth profile and RT-PCR analysis.

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