Displaying publications 1 - 20 of 29 in total

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  1. Lee CE, Zain AA, Pang YK
    Med J Malaysia, 2010 Sep;65(3):221-3.
    PMID: 21939173
    We report a case of a 21-year-old university student with underlying lupus nephritis who presented with recurrent symptoms of fever, haemoptysis, and pleuritic chest pain. CT pulmonary angiogram confirmed pulmonary embolism in the right subsegmental pulmonary arteries. One week later, she developed left renal vein and left common iliac vein thromboses, with new emboli in the left subsegmental pulmonary arteries. We hereforth discuss the diagnostic issues of a patient with systemic lupus erythematosus (SLE) on corticosteroids therapy, and also treatment of the antiphospholipid syndrome.
  2. Jasmi AY, Zain AR, Hayati AR
    Med J Malaysia, 1992 Dec;47(4):316-9.
    PMID: 1338918
    A 14 year old Malay boy with an adenocarcinoma of the transverse colon is reported. A lesion was discovered early when he presented with an uncommon complication in the form of a bowel intussusception. Emergency segmental colonic resection was performed, followed later by an extended left hemicolectomy following histological confirmation of the disease. Benign adenomatous polyp is believed to be the predisposing condition. Both ralities, colorectal cancer in young adults and adult intussusception, are discussed.
  3. Tay SK, Leong YP, Meah FA, Abdullah T, Zain AR
    Med J Malaysia, 1992 Dec;47(4):267-72.
    PMID: 1303478
    Bleeding gastroesophageal varices is associated with a high morbidity and mortality. Forty-four cases of bleeding gastroesophageal varices were treated at the Department of Surgery, Universiti Kebangsaan Malaysia, General Hospital, Kuala Lumpur over four and a half years. Thirty-two of them had liver cirrhosis. Hepatitis B infection was noted in 13 and alcoholic abuse was present in 14 patients. Five patients had associated hepatoma. Thirty-four percent had gastric fundal varices and a third of these bled from them. A total of 179 endoscopic injection sclerotherapy sessions were performed averaging 4 per person. Rebleeding rate was 4% and mortality was high (50%) in these cases. It was concluded that injection sclerotherapy is a safe and effective means of controlling bleeding oesophageal varices. Operative surgery was employed in those who rebled after injection and would be considered in those in Child's A.
  4. Zain AM
    Med J Malaysia, 1990 Mar;45(1):74-7.
    PMID: 2152073
    The concept of conversion hallucination is a relatively new one, however there have been several articles written on this phenomena, some attesting to it being a special form of hallucination while others dismissing it altogether. But currently this concept is slowly being accepted among psychiatrists and as such it is important for us to understand some of the concepts. In this case report, the patient presented with clear conversion hallucinations. The case is followed by a discussion on true and pseudo-hallucinations, previous case reports and finally a discussion of conversion hallucinations, viz. the clinical features and the conversion hypothesis.
  5. Hamdan SK, Mohd Zain A
    Malays J Med Sci, 2014 Dec;21(Spec Issue):12-26.
    PMID: 25941459 MyJurnal
    Glutamate is one of the most prominent neurotransmitters in mammalian brains, which plays an important role in neuronal excitation. High levels of neurotransmitter cause numerous alterations, such as calcium overload and the dysfunction of mitochondrial and oxidative stress. These alterations may lead to excitotoxicity and may trigger multiple neuronal diseases, such as Alzheimer's disease, stroke, and epilepsy. Excitotoxicity is a pathological process that damages nerve cells and kills cells via excessive stimulation by neurotransmitters. Monitoring the concentration level of brain glutamate via an implantable microbiosensor is a promising alternative approach to closely investigate in the function of glutamate as a neurotransmitter. This review outlines glutamate microbiosensor designs to enhance the sensitivity of glutamate detection with less biofouling occurrence and minimal detection of interference species. There are many challenges in the development of a reproducible and stable implantable microbiosensor because many factors and limitations may affect the detection performance. However, the incorporation of multiple scales is needed to address the basic issues and combinations across the various disciplines needed to achieve the success of the system to overcome the challenges in the development of an implantable glutamate biosensor.
  6. Koh KL, Zain A
    J Craniofac Surg, 2018 Jun;29(4):861-867.
    PMID: 29438206 DOI: 10.1097/SCS.0000000000004347
    : Open cranial vault remodeling techniques require rigid fixation with hardware such as plates and screws; however, complications can occur. The purpose of this study was to assess the surgical outcome after open reconstruction for craniosynostosis with less rigid fixation using nonabsorbable suture.

    METHODS: Retrospective review of patients who underwent open craniofacial reconstruction for craniosynostosis at the Hospital Kuala Lumpur between January 2011 and December 2016 were performed. Demographic data, surgical complications, and postoperative aesthetic outcomes and reoperations were evaluated using Whitaker classification. Statistical analyses were performed using SPSS.

    RESULTS: Thirty-four (n = 34) cases were included in this review consisting of 16 males and 18 females (ratio 1:1.25). Sixteen patients were syndromic with multiple suture synostoses: Apert syndrome (n = 8), Crouzon syndrome (n = 6), and Muenke's syndrome (n = 2). Eighteen patients were nonsyndromic: isolated single-suture craniosynostosis (n = 12) and multiple suture involvement (n = 6). Mean age of presentation was 17.4 months (4-16 months) with mean age of surgery of 23.8 months (6-68 months). Mean length of surgery was 6.1 hours (range 3-10 hours) and mean length of hospital stay was 10 days (mean 7-20 days). Mean duration of follow-up was 2.2 years (6 month-4 years). There were a total of 9 complications postoperatively: massive blood loss (n = 4), seroma (n = 2), exposure keratitis (n = 1), hand extravasation (n = 1), and occipital sore (n = 1). Analysis showed multiple suture craniosynostoses were associated with longer operative times (4.3 hours vs 6.5 hours, P = 0.0082 24 months of age, P = 0.00059). Patients were categorized as 88.2% (n = 30) Whitaker I and II and 11.8% (n = 4) Whitaker III and IV. Reoperation rates were 2.9% (n = 1). Whitaker III and IV class were higher among patients with syndromic synostosis, unicoronal and multiple suture synostoses.

    CONCLUSIONS: Our technique of open cranial reconstruction with nonabsorbable suture nylon 2/0 as sole method of fixation has resulted in good aesthetic outcome with low reoperations and complications rate. Longer follow-up is needed to ascertain our long-term results.
  7. Adityanjee, Zain AM, Subramaniam M
    Psychopathology, 1991;24(1):49-52.
    PMID: 2023985 DOI: 10.1159/000284697
    A case of Koro is described in a Malaysian Chinese man in the setting of martial dysharmony and sexual rejection. A distinction is suggested between the epidemic form of Koro and the Koro symptom occurring sporadically. Existence of the sporadic Koro syndrome is discussed and a unified classificatory system is proposed.
  8. Chew BH, Md Zain A, Hassan F
    Psychol Health Med, 2015;20(2):198-204.
    PMID: 24773524 DOI: 10.1080/13548506.2014.913797
    Positive social interaction with peers was said to facilitate cognitive and intellectual development leading to good academic performance. There was paucity of published data on the effect of social management (SM) emotional intelligence (EI) on academic performance. We conducted this study to examine their relationship in the undergraduate medical students in a public medical school in Malaysia. This was a cross-sectional study using the Mayer-Salovey-Caruso Emotional Intelligence Test (MSCEIT) to measure the SM. The first and final year medical students were invited to participate. Students answered a paper-based demography questionnaire and completed the online MSCEIT in privacy. Independent predictors were identified using multivariate analyses. A total of 163 (84 first year and 79 final year) medical students completed the study (at a response rate of 66.0%). SM score (B = -.10 95% CI -.175 to -.015, p = .021) was significantly related to the continuous assessment (CA) marks (adjusted R(2) = .45, F13,137 = 10.26, p 
  9. Ebadi M, Rifqi Md Zain A, Tengku Abdul Aziz TH, Mohammadi H, Tee CAT, Rahimi Yusop M
    Polymers (Basel), 2023 Feb 16;15(4).
    PMID: 36850253 DOI: 10.3390/polym15040971
    Iron oxide nanoparticles are one of the nanocarriers that are suitable for novel drug delivery systems due to low toxicity, biocompatibility, loading capacity, and controlled drug delivery to cancer cells. The purpose of the present study is the synthesis of coated iron oxide nanoparticles for the delivery of sorafenib (SFB) and its effects on cancer cells. In this study, Fe3O4 nanoparticles were synthesized by the co-precipitation method, and then sorafenib was loaded onto PEG@Fe3O4 nanoparticles. FTIR was used to ensure polyethylene glycol (PEG) binding to nanoparticles and loading the drug onto the nanoshells. A comparison of the mean size and the crystalline structure of nanoparticles was performed by TEM, DLS, and X-ray diffraction patterns. Then, cell viability was obtained by the MTT assay for 3T3 and HepG2 cell lines. According to FT-IR results, the presence of O-H and C-H bands at 3427 cm-1 and 1420 cm-1 peak correlate with PEG binding to nanoparticles. XRD pattern showed the cubic spinel structure of trapped magnetite nanoparticles carrying medium. The magnetic properties of nanoparticles were examined by a vibrating-sample magnetometer (VSM). IC50 values at 72 h for treatment with carriers of Fe3O4@PEG nanoparticle for the HepG2 cell line was 15.78 μg/mL (p < 0.05). This study showed that Fe3O4 nanoparticles coated by polyethylene glycol and using them in the drug delivery process could be beneficial for increasing the effect of sorafenib on cancer cells.
  10. Zaini MA, Mohd Zain A, Din NM, Mustapha M, Sidi H
    PLoS One, 2023;18(8):e0290260.
    PMID: 37624864 DOI: 10.1371/journal.pone.0290260
    BACKGROUND: Since the enforcement of the Movement Control Order (MCO) to contain the spread of COVID -19 infection in Malaysia, most clinic appointments have been rescheduled and procedures and surgeries postponed to a later date. Clinic appointments including intravitreal endothelial growth factor (anti-VEGF) treatment for patients with diabetic macular edema (DME) were also no exception to the postponement. This measure takes a psychological toll on patients because of the overwhelming concern for their eye condition. This study was conducted to assess the psychological status of DME patients with delayed anti-VEGF treatment during the pandemic.

    METHODS: A cross-sectional study was conducted from September 2020 to March 2021 in Ophthalmology Clinic Hospital Canselor Tuanku Muhriz Universiti Kebangsaan Malaysia (HCTM UKM). Subjects diagnosed with center-involved DME aged between 20 to 80 years who experienced delayed anti-VEGF injection were recruited. Level of depression, anxiety and stress were assessed using DASS-21 questionnaire. Statistical analysis using non-parametric tests were performed to determine the relationship between the DASS-21 score and duration of last injection, in those whose vision was affected by delayed injection and the relationship to the impact of COVID-19 pandemic. Statistical significance was denoted as p < 0.05.

    RESULTS: A total of 86 respondents with median age of 69 years old participated in this study. Most respondents were Malays (n = 47,54.7%) males (n = 51, 59.3%), had education up to secondary level (n = 37, 43%), unemployed (n = 78, 90.7%), married (n = 72, 83.7%) and living with their family (n = 82, 95.3%). The number of intravitreal injections received was at least three times among the respondents (n = 81, 94.2%). More than half of the respondents (n = 46, 53.5%) had been postponed for more than 12 weeks and felt that their vision was affected after delayed intravitreal injection (n = 47, 54.7%). Most of the subjects did not experience depression, anxiety, or stress. However, there was a significant level of stress scores among those with delayed injection of 9 to 12 weeks (p = 0.004), and significant anxiety (p = 0.029) and stress (p = 0.014) scores found in subjects with vision affected due to delayed treatment.

    CONCLUSION: The level of anxiety and stress can be significant in DME patients who experienced delay in intravitreal anti-VEGF treatment. Assessment of psychosocial impacts is important to identify early mental health issues potentially leading to the onset of psychiatry illness, thus early intervention is indispensable.

  11. Mohd Fauzi Yap MFB, Mohd Zain A, Tumain NR, Palaniappan S, Nasaruddin RA, Md Din N
    Ocul Immunol Inflamm, 2020 Sep 24.
    PMID: 32967510 DOI: 10.1080/09273948.2020.1800050
    A 45-year-old man was diagnosed with diffuse large B-cell lymphoma stage IV which was confirmed by celiac lymph node biopsy. He subsequently completed six cycles of R-CHOP chemotherapy. Six months later, he presented with panuveitis OU with positive relative afferent pupillary defect OD. OCT revealed hyper-reflective lesions and irregularity of the retinal pigment epithelium OU. Fundus fluorescein angiogram shows hyper-auto fluorescence and granular changes on the retina. A month later, he developed swollen optic disc OD and hemorrhagic retinitis OU and treated as presumed CMV retinitis. Anti-TB was started after a positive Mantoux test. He finally consented for a vitreous biopsy which showed atypical lymphoid cells highly suggestive for vitreoretinal lymphoma and subsequently received intravitreal methotrexate OU.

    CONCLUSION: Optic nerve infiltration in systemic metastatic retinal lymphoma may have initial occult signs but with profound visual loss. Ocular infections like CMV retinitis and tuberculosis may mask and delay the diagnosis in immunocompromised patients.

  12. D'Souza UJ, Zain A, Raju S
    Mutat Res, 2005 Mar 7;581(1-2):187-90.
    PMID: 15725618
    The genotoxic effect of the herbicide paraquat was studied in rat bone-marrow by means of the micronucleus assay. Paraquat at dose levels of 6, 15 and 30 mg/kg body weight was given to rats in a single application via the dermal route. Marrow was collected at 24, 48 and 72 h after the application. The micronucleus assay was done as recommended by standard procedures. Paraquat gave rise to an increase in the number of micronuclei in a dose-dependent manner. The number of micronucleated polychromatic erythrocytes showed a maximum at 48 h and the toxicity was further prolonged, as there was no complete recovery at 72 h. These findings suggest a genotoxic effect of paraquat even after exposure via dermal application.
  13. Jasmin R, Sockalingam S, Shahrizaila N, Cheah TE, Zain AA, Goh KJ
    Lupus, 2012 Sep;21(10):1119-23.
    PMID: 22433918 DOI: 10.1177/0961203312440346
    Peripheral neuropathy is a known manifestation of systemic lupus erythematosus. However, the association of primary autoimmune inflammatory neuropathies such as chronic inflammatory demyelinating polyneuropathy (CIDP) with SLE is uncommon. We report a 26-year-old man who simultaneously presented with severe CIDP and photosensitive rash, but was unresponsive to intravenous immunoglobulin infusion and continued to progress. He was found to have underlying SLE and improved with combined corticosteroid and immunosuppressive therapy with oral cyclophosphamide. CIDP with underlying SLE may be more resistant to conventional therapy with IVIG, requiring the addition of other immunosuppressive agents.
  14. Rao PV, Ahuja MM, Trivedi BB, Ramachandran M, Samal KC, Zain AZ, et al.
    J Indian Med Assoc, 1998 May;96(5):155-7.
    PMID: 9828573
  15. Siddiqui AA, Sobani ZA
    J Med Case Rep, 2012;6:45.
    PMID: 22289362 DOI: 10.1186/1752-1947-6-45
    Hypoplasia of the internal carotid artery is a rare congenital anomaly, with only 24 cases of bilateral internal carotid artery hypoplasia reported to date. Here, we present the case of a 48-year-old woman with bilateral internal carotid artery hypoplasia. She had a collateral circulation through the vertebrobasilar system; however given the high pressure flow she developed aneurysmal formations in the posterior communicating artery. To the best of our knowledge, only seven reported cases of internal carotid artery hypoplasia have been associated with intracranial aneurysmal formations.
  16. Shamim S, Awan MJ, Mohd Zain A, Naseem U, Mohammed MA, Garcia-Zapirain B
    J Healthc Eng, 2022;2022:6566982.
    PMID: 35422980 DOI: 10.1155/2022/6566982
    The coronavirus (COVID-19) pandemic has had a terrible impact on human lives globally, with far-reaching consequences for the health and well-being of many people around the world. Statistically, 305.9 million people worldwide tested positive for COVID-19, and 5.48 million people died due to COVID-19 up to 10 January 2022. CT scans can be used as an alternative to time-consuming RT-PCR testing for COVID-19. This research work proposes a segmentation approach to identifying ground glass opacity or ROI in CT images developed by coronavirus, with a modified structure of the Unet model having been used to classify the region of interest at the pixel level. The problem with segmentation is that the GGO often appears indistinguishable from a healthy lung in the initial stages of COVID-19, and so, to cope with this, the increased set of weights in contracting and expanding the Unet path and an improved convolutional module is added in order to establish the connection between the encoder and decoder pipeline. This has a major capacity to segment the GGO in the case of COVID-19, with the proposed model being referred to as "convUnet." The experiment was performed on the Medseg1 dataset, and the addition of a set of weights at each layer of the model and modification in the connected module in Unet led to an improvement in overall segmentation results. The quantitative results obtained using accuracy, recall, precision, dice-coefficient, F1score, and IOU were 93.29%, 93.01%, 93.67%, 92.46%, 93.34%, 86.96%, respectively, which is better than that obtained using Unet and other state-of-the-art models. Therefore, this segmentation approach proved to be more accurate, fast, and reliable in helping doctors to diagnose COVID-19 quickly and efficiently.
  17. Mohd Zain A, Md Noh UK, Hussein S, Che Hamzah J, Mohd Khialdin S, Md Din N
    J Glaucoma, 2019 04;28(4):321-324.
    PMID: 30585941 DOI: 10.1097/IJG.0000000000001164
    PURPOSE: The purpose of this study was to investigate the association between long-term intranasal steroid use and intraocular pressure (IOP) elevation.

    PATIENTS AND METHODS: In total, 100 eyes from 50 patients on long-term intranasal steroids (>2 y) for allergic rhinitis and 90 eyes from 45 controls were included in this study. Patients on other forms of steroids and risk factors for glaucoma were excluded. IOP was measured and nonmydriatic stereoscopic optic disc photos were taken for each eye. The vertical cup-to-disc ratio and the status of the optic disc were evaluated.

    RESULTS: The mean IOP for intranasal steroids group was significantly higher (15.24±2.31 mm Hg) compared to the control group (13.91±1.86 mm Hg; P=0.000). However, there were no significant differences in the vertical cup-to-disc ratio and the status of glaucomatous optic disc changes between the groups.

    CONCLUSIONS: Prolonged use of intranasal steroids cause statistical significant increase in IOP in patients with allergic rhinitis although no significant glaucomatous disc changes were seen. We suggest patients on long-term use of intranasal steroid have a yearly eye examination to be monitored for IOP elevation and those with additional risk factors for glaucoma is closely monitored for glaucoma.

  18. Kaharudin, K. E., Salehuddin, F., Zain, A. S. M., Aziz, M. N. I. A., Ahmad, I.
    MyJurnal
    The reduction in the dimension of planar MOSFET device appears to be limited when it
    reaches to 22nm technology node. In this research , a new concept of MOSFET architecture named
    as Ultrathin Pillar Vertical Double Gate (VDG) MOSFET device was introduced and it was
    integrated with silicon-on-insulator (SOI) technology for better electrical performances. The virtual
    device fabrication and characterization were executed by using ATHENA and ATLAS modules from
    SILVACO Internationals. The process parameters of the device were then optimized by utilizing the
    Taguchi method for obtaining the lowest value of subthreshold swing (SS). The optimal result of the
    subthreshold swing (SS) was observed to be 58.07 mV/dec with threshold voltage (VTH) of 0.408 V
    and a very low leakage current (IOFF)value of 9.374 x 1016 A/µm. These results are well within the
    predicted value of International Technology Roadmap Semiconductor (ITRS) 2013 for low power
    (LP) requirement in the year 2020. Copyright © 2016 Penerbit Akademia Baru - All rights reserved.
  19. Abdollahi F, Lye MS, Md Zain A, Shariff Ghazali S, Zarghami M
    PMID: 24644441
    OBJECTIVE: Postpartum depression (PPD) is a common health problem which affects women in the postpartum period. This is a brief note on its associated factors in women from different cultures.
    METHODS: A literature review was performed in MEDLINE and Pubmed from 1991 to 2008 and Magiran from 1991 to 2009. Additional articles and book chapters were referenced from these sources.
    RESULTS: The prevalence of postpartum depression has been reported to be from 0.5% to 60% globally, and from 3.5% to 63.3% in Asian countries, in which Malaysia and Pakistan had respectively the lowest and highest rates. One of the factors contributing to PPD in Asian societies can be that women may not have the empowerment to reject traditional rituals that are imposed on them by their caregivers. Unsatisfactory pre-existing relationships between the mothers and their caregivers resulting in mothers experiencing difficulties during their confinement period may be another factor. Thirdly, some features of these traditional rituals may be the cause of tension, stress and emotional distress. Emotional conflicts caused by insistence on practice of traditional rituals during the postpartum period may lead to mental breakdown.
    CONCLUSION: Health care professionals should be aware that the phenomenon in Asian cultures is as prevalent as European cultures. Moreover, further research needs to be conducted on the global prevalence of the experiences of childbearing women with depressive symptoms.
    KEYWORDS: Cultures; Postpartum depression; Risk factors
  20. Wong MH, Sockalingam S, Zain A
    Int J Rheum Dis, 2011 Aug;14(3):e38-41.
    PMID: 21816012 DOI: 10.1111/j.1756-185X.2011.01602.x
    We report a 57-year-old woman with a 20-year history of hepatitis B presenting with progressive proximal lower limb weakness for the previous 1 month. Previous medical history included a pericardial and pleural effusion, of which no cause was found and pulmonary tuberculosis which has been adequately treated. Examination revealed multiple telangiactasia over face and nail beds and bilateral proximal lower limb weakness of power 4/5. Biochemical investigation revealed a raised erythrocyte sedimentation rate of 36 mm/h, elevated creatinine kinase levels (14,363 IU/L) and raised liver enzymes (alanine aminotransferase 445 IU/L, aspartate aminotransferase 606 IU/L) with high hepatitis B virus DNA (1,021,158 copies/mL). Nerve conduction tests and muscle biopsy were consistent with polymyositis. She received entacavir for hepatitis B treatment. Despite treatment with entacavir for 10 weeks, her weakness persisted and prednisolone was added. Upon commencement of prednisolone, her symptoms and biochemical profiles returned to normal.
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