1.Morphological characterization of Haemonchus contortus in goats (Capra hircus) and sheep (Ovis aries) in Penang, Malaysia.
Wahab A Rahman ; Suhaila Abd Hamid
Tropical biomedicine 2007;24(1):23-7
The large stomach worm, Haemonchus contortus is an important pathogen of goats (Capra hircus) and sheep (Ovis aries). This paper describes characteristics of surface cuticular ridges (synlophe) of H. contortus adults from the two hosts. There were more ridges in H. contortus from goats compared to that from sheep. Total body length, vulvar morphology, spicule length and cervical papillae had been considered as markers of physical adaptation and were studied and described.
Sheep
;
Haemonchus contortus
;
Length
;
upper case aitch
;
Malaysia
2.Identification of phenolic compounds and evaluation of antibacterial properties of Piper sarmentosum Roxb. against rice pathogenic bacteria
Sharifah Farhana Syed Ab Rahman ; Kamaruzaman Sijam, Dzolkhifli Omar and Mohd Zafri Abd Wahab
Malaysian Journal of Microbiology 2016;12(6):475-484
Aims: Piper sarmentosum Roxb. has a long history of medicinal usage and potential in treating many diseases and
ailments. It is known for its medicinal properties and contains a variety of active chemical compounds. This study was
conducted to identify and quantify the phenolic compounds of the leaf and fruit extract of P. sarmentosum, as well as
their antibacterial activities.
Methodology and results: High Performance Liquid Chromatography (HPLC) was carried out to identify the phenolic
compounds in the samples. Antibacterial performance of the samples was measured using agar well and disc diffusion
assay, where its MIC values were then determined. After going through HPLC-UV, the major phenolic compounds
identified in both extracts were tannic acid, gallic acid, quercetin and naringin. The leaf and fruit of P. sarmentosum
exhibited moderate to strong antibacterial activity when tested against pythopathogenic bacteria with an inhibition range
of 10.67-17.33 mm at 100 mg/mL.
Conclusion, significance and impact of study: The leaf and fruit extracts of P. sarmentosum were proven to have
effective inhibitory effects on Pseudomonas fuscovaginae and Xanthomonas oryzae pv. oryzae, which are also the
causal agents of sheath brown rot and bacterial leaf blight in rice. This is believed to be due to the presence of the
phenolic compounds in these samples. In a subsequent study, the researchers are planning to apply a formulation,
developed from the crude extract, in the glasshouse and field trial.
3.Pheochromocytoma and Pregnancy: A Difficult and Dangerous Ordeal
Mohamed Ismail Nor Azlin ; Abd Rahman Rahana ; Abd Wahab Norasyikin ; Muhammad Rohaizak ; Nor Azmi Kamaruddin
Malaysian Journal of Medical Sciences 2012;19(1):65-68
Pheochromocytoma during pregnancy is potentially disastrous to the mother and fetus. Its ambiguous presentation is often mistaken for pre-eclampsia, although it may imitate other problems during pregnancy. Early diagnosis and timely, appropriate management reduces possible maternal and fetal complications. We identified a case of pheochromocytoma during pregnancy; the condition was initially diagnosed as pre-eclampsia complicated with gestational diabetes. Surgical intervention via left adrenalectomy was successfully performed in the second trimester. After surgery, all of the patient’s medical problems nearly subsided and she did not require further treatment. However, her fetus displayed restricted intrauterine growth, and the patient eventually had premature delivery via a caesarean section. A multidisciplinary team to identify and treat pheochromocytoma is mandatory to ensure optimal conditions for tumour removal and to anticipate any possible catastrophic events.
4.Comparative seroprevalences of bovine trypanosomiasis and anaplasmosis in five states of Malaysia
Wahab A. Rahman ; Samantha Fong ; Chandrawathani, P. ; Nurulaini, R. ; Zaini, C.M. ; Premalaatha, B.
Tropical Biomedicine 2012;29(1):65-70
Abstract. A comparative seroprevalence study on bovine trypanosomiasis and anaplasmosis was conducted. Sera of adult cattle and buffaloes of different breeds from farms from five different states in Malaysia were collected and tested for the presence of Trypanosoma evansi antibodies by CATT and Anaplasma marginale antibodies by c-ELISA. Of the 116 samples, 14.7% tested positive for bovine trypanosomiasis and 77.6% for bovine anaplasmosis.
5.Listening to Sentences in Noise: Revealing Binaural Hearing Challenges in Patients with Schizophrenia.
Noor Alaudin ABDUL WAHAB ; Mohd Normani ZAKARIA ; Abdul Hamid ABDUL RAHMAN ; Dinsuhaimi SIDEK ; Suzaily WAHAB
Psychiatry Investigation 2017;14(6):786-794
OBJECTIVE: The present, case-control, study investigates binaural hearing performance in schizophrenia patients towards sentences presented in quiet and noise. METHODS: Participants were twenty-one healthy controls and sixteen schizophrenia patients with normal peripheral auditory functions. The binaural hearing was examined in four listening conditions by using the Malay version of hearing in noise test. The syntactically and semantically correct sentences were presented via headphones to the randomly selected subjects. In each condition, the adaptively obtained reception thresholds for speech (RTS) were used to determine RTS noise composite and spatial release from masking. RESULTS: Schizophrenia patients demonstrated significantly higher mean RTS value relative to healthy controls (p=0.018). The large effect size found in three listening conditions, i.e., in quiet (d=1.07), noise right (d=0.88) and noise composite (d=0.90) indicates statistically significant difference between the groups. However, noise front and noise left conditions show medium (d=0.61) and small (d=0.50) effect size respectively. No statistical difference between groups was noted in regards to spatial release from masking on right (p=0.305) and left (p=0.970) ear. CONCLUSION: The present findings suggest an abnormal unilateral auditory processing in central auditory pathway in schizophrenia patients. Future studies to explore the role of binaural and spatial auditory processing were recommended.
Auditory Pathways
;
Case-Control Studies
;
Ear
;
Hearing*
;
Humans
;
Masks
;
Noise*
;
Schizophrenia*
6.The Hyperactivity of Efferent Auditory System in Patients with Schizophrenia: A Transient Evoked Otoacoustic Emissions Study.
Noor Alaudin ABDUL WAHAB ; Suzaily WAHAB ; Abdul Hamid ABDUL RAHMAN ; Dinsuhaimi SIDEK ; Mohd Normani ZAKARIA
Psychiatry Investigation 2016;13(1):82-88
OBJECTIVE: Electrophysiological studies, which are mostly focused on afferent pathway, have proven that auditory processing deficits exist in patients with schizophrenia. Nevertheless, reports on the suppressive effect of efferent auditory pathway on cochlear outer hair cells among schizophrenia patients are limited. The present, case-control, study examined the contralateral suppression of transient evoked otoacoustic emissions (TEOAEs) in patients with schizophrenia. METHODS: Participants were twenty-three healthy controls and sixteen schizophrenia patients with normal hearing, middle ear and cochlear outer hair cells function. Absolute non-linear and linear TEOAEs were measured in both ears by delivering clicks stimuli at 80 dB SPL and 60 dB SPL respectively. Subsequently, contralateral suppression was determined by subtracting the absolute TEOAEs response obtained at 60 dBpe SPL during the absence and presence of contralateral white noise delivered at 65 dB HL. No attention tasks were conducted during measurements. RESULTS: We found no significant difference in absolute TEOAEs responses at 80 dB SPL, in either diagnosis or ear groups (p>0.05). However, the overall contralateral suppression was significantly larger in schizophrenia patients (p<0.05). Specifically, patients with schizophrenia demonstrated significantly increased right ear contralateral suppression compared to healthy control (p<0.05). CONCLUSION: The present findings suggest increased inhibitory effect of efferent auditory pathway especially on the right cochlear outer hair cells. Further studies to investigate increased suppressive effects are crucial to expand the current understanding of auditory hallucination mechanisms in schizophrenia patients.
Afferent Pathways
;
Auditory Pathways
;
Case-Control Studies
;
Diagnosis
;
Ear
;
Ear, Middle
;
Efferent Pathways
;
Hair
;
Hallucinations
;
Hearing
;
Humans
;
Noise
;
Schizophrenia*
7.A Case Report of Steroid Withdrawal Syndrome
Faziana WAHAB ; Razlina Abdul RAHMAN ; Lili Husniati YAACOB ; Norhayati Mohd NOOR ; Nani DRAMAN
Korean Journal of Family Medicine 2020;41(5):359-362
We report a case of steroid withdrawal syndrome in a 74-year-old woman who was suspected of having an occult exogenous Cushing’s syndrome secondary to prolonged traditional complementary medicine use. She presented with non-specific symptoms of lethargy, malaise, and poor oral intake with weight loss for 1 month, and investigations showed suboptimal 9 AM cortisol level. She has responded well to steroid replacement.
8.Antimicrobial effects of Quercus infectoria gall extract on the cell morphology of Streptococcus agalactiae, Proteus vulgaris and Candida albicans
Wan Nor Amilah binti Wan Abd Wahab ; Norhaswani binti Abd Rahman ; Mohammad Lukman bin Yahaya ; Nur Saeida binti Baharuddin ; Noor Izani bin Noor Jamil
Malaysian Journal of Microbiology 2017;13(1):13-19
Aims: Quercus infectoria (QI) gall extract is known to have broad spectrum anti-microbial activity in vitro. However, its
mechanism of microbial growth inhibition is not well understood. The objectives of this study were to determine the
antimicrobial effect of methanolic QI gall extract on bacteria and yeast and changes to their cell morphology.
Methodology and results: The minimum inhibitory concentrations (MICs) of methanolic QI gall extract against
Streptococcus agalactiae (ATCC 13813), Proteus vulgaris (ATCC 49312) and Candida albicans (ATCC 10231) were
determined using two fold serial microdilution technique at concentrations ranging from 0.01 mg/mL to 5.00 mg/mL (for
bacteria) and 0.02 mg/mL to 12.00 mg/mL (for yeast). Minimum bactericidal concentration (MBC) and minimum
fungicidal concentration (MFC) were determined by subculturing the broth from the microtitre wells which showed no
apparent growth or turbidity onto the nutrient agar plates. The scanning electron microscope (SEM) was used to analyze
the morphology of bacteria and yeast cells treated with 1× MIC and 4× MIC of the extract. Substantial antimicrobial
activity was observed against ATCC strains of S. agalactiae, P. vulgaris and C. albicans in this study. The MBC/MFC to
MIC ratio (≤4) indicated the methanolic QI gall extract was bactericidal and fungicidal against all the tested strains.
Changes to the cell morphology were more obvious at higher extract concentration (4× MIC).
Conclusion, significance and impact of study: This study showed that QI gall extract has antimicrobial effects on the
bacterial and yeast cell morphology and thus, provides scientific information suggesting its possible antimicrobial
mechanisms on the cell wall and membrane integrity.
9.The Record-Setting Flood of 2014 in Kelantan: Challenges and Recommendations from an Emergency Medicine Perspective and Why the Medical Campus Stood Dry
Kamarul Aryffin Baharuddin ; Shaik Farid Abdull Wahab ; Nik Hisamuddin Nik Ab Rahman ; Nik Arif Mohamad ; Tuan Hairulnizam Tuan Kamauzaman ; Abu Yazid Md Noh ; Mohd Roslani Abdul Majid
Malaysian Journal of Medical Sciences 2015;22(2):1-7
Floods are considered an annual natural disaster in Kelantan. However, the record-setting flood of 2014 was a ‘tsunami-like disaster’. Hospital Universiti Sains Malaysia was the only fully functioning hospital in the state and had to receive and manage cases from the hospitals and clinics throughout Kelantan. The experiences, challenges, and recommendations resulting from this disaster are highlighted from an emergency medicine perspective so that future disaster preparedness is truly a preparation. The history of how the health campus was constructed with the collaboration of Perunding Alam Bina and Perkins and Willis of Chicago is elaborated.
10.Faktor-Faktor yang Mempengaruhi Persepsi Ibu terhadap Kanak-Kanak dengan Kecacatan Klef
Mohd Rohaizat Hassan ; Mohd Hafiz Yahya ; Normala Basiron ; Zairizam Zakaria ; Mohd Rizam Abdul Rahman ; Hazlina Mohd Miskam ; Sazman Wahab ; Norfazilah Ahmad ; Azmawati Mohammed Nawi ; Nazarudin Safian
International Journal of Public Health Research 2017;7(2):836-844
A study was conducted to determine the level of mothers' perception on children with cleft deformity and its associated factors
This was a cross sectional study involving 110 mothers with children attending the Plastic And Reconstructive Surgery Clinic. Data was gathered from a face to face interview based on a questionnaire that assesses the level of perception and its associated factors. The level of perception was evaluated from a scoring method and divided into four domains namely psychosocial, care management, treatment and education.
The level of perception was high in all four domains ranged from 62% for treatment and 80% for education. Factors that were significantly associated with the level of perception were ethnicity, religion, type of cleft deformity and level of information.
Information regarding cleft deformity must be tailored toward mothers’ personal characteristics and type of cleft deformity to improve mothers' perception on this problem.