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Simple method for retrieval of distal segment of the broken interlocking intramedullary nail

Marwan M, Ibrahim M

Injury, 1999 Jun;30(5):333-5.
PMID: 10505126

A simple technique for removal of the distal fragment of the broken intramedullary interlocking nail is described. It was successfully used in three patients with a broken nail due to nonunion. The technique requires only cerclage wire, which is available in any operating room, avoiding the difficulties obtaining the custom made hook and of excessive exposure to radiation.
Fulltext Mnemonic and histopathological assessment of the neuroprotective effects of murraya koenigiileaves extract in rats with partial global cerebral ischaemia.

Marwan Saad Azzubaidi, Imad M. Al-Ani

IIUM Medical Journal Malaysia, 2019;18(2):77-86.
MyJurnal

Preclinical studies have reported that Murraya koenigiileaves (MKL) could enhance memory. MKL is also known for its antioxidant activity. The current study was to assess the possible neuroprotective potential of MKL methanolic extract in a two vessel occlusion (2VO) rat model of partial global cerebral ischaemia. Methods:Rats were divided into memory and learning groups. Each group was subdivided into sham control, untreated 2VO and MKL-treated 2VO subgroups. The Morris water maze test was implemented to assess the rats’ cognitive function postoperatively. Brain samples were histopathologically examined for viable neurons within the CA1 hippocampal region. Results: Water maze test findings showed that MKL positively improved memory and learning impairments. However, this improvement in memory test for the treated group was still significantly inferior to that of the healthy control group. Additionally, MKL treated group exhibited insignificant difference in the number of viable hippocampal CA1 pyramidal neurons from that of the untreated 2VO group, whereas both MKL treated and untreated 2VO groups showed significantly less viable neurons when compared with the control group. Conclusion: MKL extract modestly improved memory without providing substantial neuroprotective action to the hippocampal neurons in rats with chronic partial global cerebral ischaemia.
An automated decision-support system for non-proliferative diabetic retinopathy disease based on MAs and HAs detection

Saleh MD, Eswaran C

Comput Methods Programs Biomed, 2012 Oct;108(1):186-96.
PMID: 22551841 DOI: 10.1016/j.cmpb.2012.03.004

Diabetic retinopathy (DR) has become a serious threat in our society, which causes 45% of the legal blindness in diabetes patients. Early detection as well as the periodic screening of DR helps in reducing the progress of this disease and in preventing the subsequent loss of visual capability. This paper provides an automated diagnosis system for DR integrated with a user-friendly interface. The grading of the severity level of DR is based on detecting and analyzing the early clinical signs associated with the disease, such as microaneurysms (MAs) and hemorrhages (HAs). The system extracts some retinal features, such as optic disc, fovea, and retinal tissue for easier segmentation of dark spot lesions in the fundus images. That is followed by the classification of the correctly segmented spots into MAs and HAs. Based on the number and location of MAs and HAs, the system quantifies the severity level of DR. A database of 98 color images is used in order to evaluate the performance of the developed system. From the experimental results, it is found that the proposed system achieves 84.31% and 87.53% values in terms of sensitivity for the detection of MAs and HAs respectively. In terms of specificity, the system achieves 93.63% and 95.08% values for the detection of MAs and HAs respectively. Also, the proposed system achieves 68.98% and 74.91% values in terms of kappa coefficient for the detection of MAs and HAs respectively. Moreover, the system yields sensitivity and specificity values of 89.47% and 95.65% for the classification of DR versus normal.
An efficient algorithm for retinal blood vessel segmentation using h-maxima transform and multilevel thresholding

Saleh MD, Eswaran C

Comput Methods Biomech Biomed Engin, 2012;15(5):517-25.
PMID: 21331960 DOI: 10.1080/10255842.2010.545949

Retinal blood vessel detection and analysis play vital roles in early diagnosis and prevention of several diseases, such as hypertension, diabetes, arteriosclerosis, cardiovascular disease and stroke. This paper presents an automated algorithm for retinal blood vessel segmentation. The proposed algorithm takes advantage of powerful image processing techniques such as contrast enhancement, filtration and thresholding for more efficient segmentation. To evaluate the performance of the proposed algorithm, experiments were conducted on 40 images collected from DRIVE database. The results show that the proposed algorithm yields an accuracy rate of 96.5%, which is higher than the results achieved by other known algorithms.
An interesting finding in a patient with chronic diarrhoea

Marwan AA, Ngiu CS, Periyasamy P

Ann Acad Med Singap, 2013 Feb;42(2):97-8.
PMID: 23515696
Fulltext Spontaneous pneumothorax and pneumomediastinum after a trivial injury: a case report

Ahmad Faizal Rakawi, Abdul Aziz Marwan, Ummi Nadira Daut

Malaysian Journal of Medicine and Health Sciences, 2020;16(108):84-86.
MyJurnal

Spontaneous pneumothorax and pneumomediastinum is defined as presence of free air or gas in the pleural cav- ity and mediastinal structures respectively. Spontaneous pneumothorax seems to be associated with anatomical abnormalities such as subpleural blebs or bullae, however not for spontaneous pneumomediastinum which may developed without an apparent precipitating cause. Both usually may occur in young healthy adults without serious underlying lung disease. We report a case of spontaneous pneumothorax and pneumomediastinum after a trivial injury. He was initially presented with dyspnea after two weeks of initial trivial trauma. Chest radiograph showed left apical pneumothorax with pneumomediastinum with no evidence of rib fracture. His condition was deemed non-traumatic by surgical colleague, thus admitted to medical ward for observation and eventually discharged well.
Fulltext A non-surgical management of delayed diagnosis of an oesophageal perforation due to ingestion of okra: a case report

Rosmadi Ismail, Ummi Affah Mahamad, Abdul Aziz Marwan

Malaysian Journal of Medicine and Health Sciences, 2020;16(108):87-89.
MyJurnal

Oesophageal perforation is a not uncommon condition, yet it carries a high mortality rate and has been observed as the most grievous trauma to the digestive tract. Common causes include iatrogenic instrumentation, foreign-body swallowing, and physical injury. This report highlighted a case of oesophageal perforation complicated by formation of proximal descending aorta pseudoaneurysm as a result of okra ingestion. The patient was successfully treated with conservative treatment. The possible mechanism of oesophageal rupture, diagnosis, treatment, and other complica- tion will be further discussed.
Fulltext An automated blood vessel segmentation algorithm using histogram equalization and automatic threshold selection

Saleh MD, Eswaran C, Mueen A

J Digit Imaging, 2011 Aug;24(4):564-72.
PMID: 20524139 DOI: 10.1007/s10278-010-9302-9

This paper focuses on the detection of retinal blood vessels which play a vital role in reducing the proliferative diabetic retinopathy and for preventing the loss of visual capability. The proposed algorithm which takes advantage of the powerful preprocessing techniques such as the contrast enhancement and thresholding offers an automated segmentation procedure for retinal blood vessels. To evaluate the performance of the new algorithm, experiments are conducted on 40 images collected from DRIVE database. The results show that the proposed algorithm performs better than the other known algorithms in terms of accuracy. Furthermore, the proposed algorithm being simple and easy to implement, is best suited for fast processing applications.
Fulltext Gene-environment Interaction: The Causes of High Obesity Incidence

Ellulu MS, Jalambo MO

Kathmandu Univ Med J (KUMJ), 2018 2 16;15(57):91-93.
PMID: 29446373

Urbanization has provided experimental settings for testing the interactive relationship between genetic background and changes in lifestyle and dietary patterns. The concept of gene-environment interaction was described by epidemic of obesity along with urbanization. Genome-wide association has identified several genes such as melanocortin-4 receptor that associates with environmental influences of obesity. Gene environment (GxE) interaction refers to modification by an environmental factor of the effect of a genetic variant on a phenotypic trait. GxE interactions can serve to modulate the adverse effects of a risk allele, or can exacerbate the genotype-phenotype relationship and increase risk.
Bibliometric analysis of immigration and environmental degradation: evidence from past decades

Anuar A, Marwan NF, Smith J, Siriyanun S, Sharif A

Environ Sci Pollut Res Int, 2022 Feb;29(9):13729-13741.
PMID: 34599441 DOI: 10.1007/s11356-021-16470-1

The aim of this paper is to examine immigration and environmental degradation using bibliometric analysis. This paper also analyzes sources of publication, authorship, citations, distributions publications and other bibliometric indicators. The study focuses on a total of 1372 articles published from 2000 to 2020. These articles were collected through an automated process from the Scopus database and later analyzed using techniques such as bibliometric indicators analysis, VOSviewer, and Perish or Publish. The research identified 991 articles from varieties of published sources. The topic of immigrants and environmental degradation has been an emerging topic since 1981. Starting in 2000, most of the scholars actively producing an articles pertinent to this topic. Most of the articles were published in journals, and English is the primary language of research. United States is the leading country in contributing the publications. Meanwhile, the most significant fields in which the sources were produced were environmental science, agricultural and biological sciences, arts and humanities and earth and planetary sciences. However, some limitations has been found. It has been suggested for future research, to lengthen this work to other databases, as well as bibliometric analyses of immigration and environmental degradation in developed and developing countries by adding a new keyword such as energy consumption and climate change. This paper aims to assess recent trends in the expansion of academic literature on immigration and environmental degradation using the bibliometric analysis method. Network visualization and bibliometric indicators are used in this paper to present the results.
Population variation in the incidence of the medial (hamate) facet of the carpal bone lunate

Dharap AS, Lutfi I, Abu-Hijleh MF

Anthropol Anz, 2006 Mar;64(1):59-65.
PMID: 16623089

Studies on the wrist joint have shown two types of the carpal bone lunate. In type II lunate there is a facet on the medial side of the lunate for articulation with the proximal pole of the hamate; such a facet is absent in type I lunate. Type II lunates have different kinematics, are more prone to clinically relevant degenerative changes in the hamato-lunate joint and are an uncommon cause of ulnar-sided wrist pain. Ninety plain radiographs showing postero-anterior views of the wrist (52 right and 38 left wrists) were studied in a population of Malays from Malaysia (mean age 48 years; age range 23 to 67 years) to determine the incidence of type I and type II lunates. Our findings were compared with those in other reports in the literature. In Malays, only 24 wrists (26.7%) showed a type II lunate compared to a reported incidence of 50% or more in populations from the Western world. Such a low incidence of type II lunate has not been reported before and may represent a genetic variation in Malays. Consequently, osteoarthritis of the hamate or lunate may play a less significant role in causing ulnar-sided wrist pain in Malays. In conclusion, the prevalence of type II lunate might vary in different population groups and further studies could be necessary to confirm this observation.
Adsorption of lipase on hollow fiber membrane chips

Shamel MM, Azaha RB, Al-Zuhair S

Artif Cells Blood Substit Immobil Biotechnol, 2005;33(4):423-33.
PMID: 16317961

The amount of lipase from Mucor miehei adsorption on ultrafiltration polysulfone hollow fiber membrane chips has been determined using different lipase concentrations at three different temperatures, namely 30, 35, and 40 degrees C. It was experimentally shown that adsorption of lipase increases with temperature. The results were used to evaluate the constants found in the Langmuir adsorption isotherm model coupled with the Van't Hoff's relationship. A temperature dependence correlation for the amount of adsorbed lipase activity, alip,ads, and that present in the supernatant solution, alip,free was determined. The effect of varying the concentration on a cross-linking agent, namely, glutaraldehyde, to the membrane chips was also tested. It was found that, under the same operating conditions, the amount of lipase adsorbed on polysulfone membranes was increased dramatically after pre-treating the membrane with 1% Glutaraldehyde. However, increasing the concentration of the cross-linking agent has a low effect on the amount of lipase adsorbed.
Fulltext Effects of iron supplementation and nutrition education on haemoglobin, ferritin and oxidative stress in iron-deficient female adolescents in Palestine: randomized control trial

Jalambo M, Karim N, Naser I, Sharif R

East Mediterr Health J, 2018 Jul 29;24(6):560-568.
PMID: 30079951 DOI: 10.26719/2018.24.6.560

Background: Iron deficiency and iron-deficiency anaemia are associated with oxidative stress, but their role is largely unclear. Information is scarce on the effects of iron supplementation on biomarkers of oxidative stress in humans.
Aims: This study evaluated the effectiveness of iron supplementation and nutrition education on improving the levels of haemoglobin and ferritin, and decreasing oxidative stress among iron-deficient female adolescents in Gaza, Palestine.
Methods: A total 131 iron-deficient female adolescents were recruited and allocated randomly into 3 different groups. The iron supplementation group (A) received 200 mg of ferrous fumarate weekly during the 3-month intervention, the iron supplementation with nutrition education group (B) received iron supplements with nutrition education sessions, and the control group (C) did not receive any intervention. The levels of haemoglobin, ferritin and malonyl dialdehyde were measured at baseline, after 3 months (at which point the intervention was stopped), and then 3 months later. Trial registration number: ACTRN12618000960257.
Results: Haemoglobin levels increased significantly after supplementation in both groups A and B. At the follow-up stage (3 months after stopping the intervention), iron and haemoglobin levels in group B continued to increase and malonyl dialdehyde decreased. In Group A, haemoglobin, ferritin and malonyl dialdehyde levels decreased after 3 months of stopping the intervention. No changes were seen in Group C.
Conclusions: A nutrition programme should be adopted and integrated into comprehensive intervention programmes to target iron-deficiency anaemia among female adolescents in Palestine.
Fulltext Datasets for corporate governance index of Jordanian non-financial sector firms

Mansour M, Hashim HA, Salleh Z

Data Brief, 2020 Jun;30:105603.
PMID: 32382612 DOI: 10.1016/j.dib.2020.105603

This article covers comprehensive data on firm-level corporate governance practices as imposed by the Jordan Securities Commission (JSC). The study includes panel data for 95 non-financial Jordanian listed firms (industrial and service sector) in Amman Stock Exchange (ASE). The time frame used for this study is from 2012 to 2017. Data presented were extracted from the annual reports of each firm. The annual reports had been downloaded from the official website of the ASE. The data can be used easily by the researcher to develop and calculate a corporate governance index that involves thirty-two internal governance attributes and is comprised of three equally weighted sub-indices. The first sub-index which is "Disclosure and Transparency" consists of 15 unique attributes. While the second sub-index, "Board Effectiveness and Composition" consists of 9 unique attributes. The last sub-index which is "Shareholders Rights" consists of 8 unique attributes. Thus, the un-weighted corporate governance index has an important feature that is easily replicated and modified, enabling the researcher to rate firms based on an aggregate index score or by using the sub-indices score also.
Fulltext Conceptualizing the complexity of reflective practice in education

Mohamed M, Rashid RA, Alqaryouti MH

Front Psychol, 2022;13:1008234.
PMID: 36337529 DOI: 10.3389/fpsyg.2022.1008234

In higher education, reflective practice has become a dynamic, participatory, and cyclical process that contributes to educators' professional development and personal growth. While it is now a prominent part of educators, many still find it challenging to apply the concept for it carries diverse meaning for different people in different contexts. This article attempts to (re)conceptualize the complexity of reflective practice in an educational context. Scholars in this field have taken different approaches to reflective practice, but all these approaches consist of four main components in common: (i) reflecting; (ii) planning for future action; (iii) acting; and (iv) evaluating the outcomes. We extend the existing literature by proposing a model which integrates these four components with three key aspects of reflection: problem-solving, action orientation, and criticality. The novelty of this model lies within its alignment of the three key aspects with different levels of criticality in a comprehensive framework with detailed descriptors provided. The model and its descriptors are useful in guiding individuals who directly or indirectly involve in critical reflection, especially educators, in appraising their levels of criticality and consequently engage in a meaningful reflection.
Fulltext The Clinical Profile of Unilateral and Bilateral Optic Disc Swelling in a Tertiary Center in Northern Malaysia

Abdul Aziz AM, Ismail AS, Yaakub A

Cureus, 2022 Oct;14(10):e30572.
PMID: 36415408 DOI: 10.7759/cureus.30572

Background Optic disc swelling (ODS) is a pathological condition with a variety of causes, including optic neuritis (ON), anterior ischemic optic neuropathy, and papilledema. Determining the causes of ODS is critical due to the possibilities of vision- or life-threatening diseases, such as space-occupying lesions. This study aimed to investigate the clinical profile of unilateral and bilateral ODS in Penang Hospital, Malaysia. Methodology This retrospective, descriptive study was conducted in Penang Hospital. Medical records of patients who were diagnosed with ODS from June 2018 until June 2020 in Penang Hospital Eye Emergency Clinic were reviewed. We excluded patients who defaulted on subsequent three months of follow up and those with pseudo-ODS. Results ODS was diagnosed in 43 patients who were all included in the study. Majority were females 55.8% (n = 24), with age ranging from 16 to 78 years. ON contributed most (41.9%, n = 18), followed by non-arteritic anterior ischemic optic neuropathy (NA-AION) (34.9%, n = 15), and papilledema (9.3%, n = 4). Other causes (14%, n = 6) included diabetic papillitis (n = 1), hypertensive retinopathy (n = 1), and central retinal vein occlusion (n = 4). Poor mean initial visual acuity was seen in patients with ON (1.07 ± 0.68) and NA-AION (1.33 ± 0.67). ON showed better final visual outcomes compared to NA-AION at the one-year follow-up. Conclusions ON and NA-AION were identified as the two most common causes of ODS in Penang Hospital for both unilateral and bilateral presentations. Most cases presented with poor initial visual acuity. After one year of follow-up, good visual recovery was seen in ON cases compared to other cases. These results were comparable with studies conducted in other Asian counties.
Fulltext Prevention of brain hypoperfusion-induced neurodegeneration in rat’s hippocampus by black cumin fixed oil treatment

Marwan Saad Azzubaidi, Al-Ani, Imad Matloub, Anil Kumar Saxena, Ghasak Ghazi Faisal

International Medical Journal Malaysia, 2018;17(1):103-112.
MyJurnal

Introduction: The oil extract of black cumin seeds Nigella sativa (NSO) demonstrated considerable
preservation of spatial cognitive functions in rats subjected to chronic brain hypoperfusion (CBH). The hippocampal CA1 region pyramidal cells are the earliest neurons suffering neurodegeneration following CBH. Objective: The current study was devoted to assess the protective effects of Nigella sativa (NSO) treatment on CA1 hippocampal pyramidal cells of rats subjected to chronic brain hypoperfusion (CBH) that was achieved through permanent two vessel occlusion (2VO) procedure. Methods: Twenty four rats were equally divided into three groups; sham control, untreated 2VO and NSO treated group (2VO with daily oral NSO treatment. After the 10th postoperative week coronal sections of the hippocampus were collected for histopathological and electron microscopical examinations. Results: The number of viable pyramidal cells within CA1 hippocampal region in sham control and NSO treated groups was significantly higher than that of untreated 2VO group, while the difference was not significant when comparing the viable pyramidal cells number of sham control with NSO treated groups. Furthermore, 2VO group showed marked intracellular ultrastructural distortions that were less pronounced in NSO treated group. Conclusion: NSO displayed a robust potential to protect hippocampal pyramidal cells from CBH induced neurodegeneration putting forward its prospective neuroprotective activity against age related cognitive decline of Alzheimer’s disease and vascular dementia.
Fulltext Necrotizing autoimmune myopathy: a case series

Narisa Sulaiman Sahari, Abdul Aziz Marwan, Dayang Masyrinartie Suahilai, Nurulraziquin Mohd Jamid, Nor Shuhaila Shahril

Malaysian Journal of Medicine and Health Sciences, 2020;16(108):78-80.
MyJurnal

Necrotizing autoimmune myopathy (NAM) is considered a new subgroup of a rare autoimmune idiopathic inflam- matory myopathies. Classically, NAM presented with sub-acute onset of proximal muscle loss of power with raised creatinine kinase and characteristic muscle biopsy showing muscle necrosis and regeneration with little inflamma- tion. Statin use, connective tissue diseases, malignancy and HIV infection are the identified risk factors for NAM. The autoantibodies expected to be presented in NAM are anti-signal recognition particle (SRP) and anti-hydroxymethylgl- utaryl-coenzyme A reductase (anti-HMGCR) antibodies. In this article, we present three cases of NAM with different risk factors and autoantibodies which we believe to have impact on the clinical course and outcome of our patients
Fulltext A rare case of disseminated sarcoidosis presenting with neurosarcoidosis: a case report

Noorhafini Abdul Sukur, Narisa Sulaiman Sahari, Abdul Aziz Marwan, Rosmadi Ismail

Malaysian Journal of Medicine and Health Sciences, 2020;16(108):81-83.
MyJurnal

Sarcoidosis is characterized by formation of inflammatory granulomas affecting all over the body, with pulmonary predilection (1). Neurosarcoidosis is a rare but potentially dangerous manifestation of sarcoidosis. We report a case of disseminated sarcoidosis presenting with a neurological diagnostic dilemma. Worsening mediastinal lymphade- nopathy, together formation of lung and liver nodules making a sarcoidosis diagnosis favourable. Histology from these lesions showed non-caseating granulomatous inflammation. She was treated as a rare case of disseminated sarcoidosis. To date, there is no specific or clear guideline on the management of disseminated sarcoidosis.
Fulltext Knowledge, attitude, practice and stigma of tuberculosis among healthcare providers in Hospital Ampang

Hafridz Murshid al-Wafi Shahbuddin, Ummi Affah Mahamad, Abdul Aziz Marwan

Malaysian Journal of Medicine and Health Sciences, 2020;16(108):42-46.
MyJurnal

Introduction: Malaysia is an intermediate tuberculosis burdened country as classified by WHO. There was a recent rise in TB incidence. Healthcare providers, especially in secondary or tertiary centers, were constantly exposed to TB infected patients, which is a hazard source for TB infection. Thus, assessment of behavior towards TB is paramount through knowledge, attitude, health-seeking practice, and stigma domains. Method: A cross-sectional survey was carried out between November 2014 and February 2015 among healthcare providers in Medical Department, Hos- pital Ampang. Data were analyzed using SPSS ver 21. Results: Despite overall good knowledge on TB, only 20% of the correspondence knew which patient’s population is at risk of TB infection. Almost all perceived TB as a health threat and willing to seek medical care if they developed TB symptoms. However, a small proportion (5.3%) will keep it a secret if they contracted TB. This is contrasted by the majority that perceived TB patients will not be accept- ed by the community. Conclusion: Knowledge and attitude towards TB was adequate within the healthcare providers in Medical Department, Hospital Ampang despite the presence of some knowledge gaps. However, there was high perceived stigma that needed to be addressed in order for them to deliver the best medical care.

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