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Fulltext Cross-continental admixture in the Kho population from northwest Pakistan

Khan A, Vallini L, Aziz S, Khan H, Zaib K, Nigar K, et al.

Eur J Hum Genet, 2022 Jun;30(6):740-746.
PMID: 35217804 DOI: 10.1038/s41431-022-01057-2

Northern Pakistan is home to many diverse ethnicities and languages. The region acted as a prime corridor for ancient invasions and population migrations between Western Eurasia and South Asia. Kho, one of the major ethnic groups living in this region, resides in the remote and isolated mountainous region in the Chitral Valley of the Hindu Kush Mountain range. They are culturally and linguistically distinct from the rest of the Pakistani population groups and their genetic ancestry is still unknown. In this study, we generated genome-wide genotype data of ~1 M loci (Illumina WeGene array) for 116 unrelated Kho individuals and carried out comprehensive analyses in the context of worldwide extant and ancient anatomically modern human populations across Eurasia. The results inferred that the Kho can trace a large proportion of their ancestry to the population who migrated south from the Southern Siberian steppes during the second millennium BCE ~110 generations ago. An additional wave of gene flow from a population carrying East Asian ancestry was also identified in the Kho that occurred ~60 generations ago and may possibly be linked to the expansion of the Tibetan Empire during 7th to 9th centuries CE (current era) in the northwestern regions of the Indian sub-continent. We identified several candidate regions suggestive of positive selection in the Kho, that included genes mainly involved in pigmentation, immune responses, muscular development, DNA repair, and tumor suppression.
Letter to the editor: In vitro digestion and radiolabeling characteristics of Vital® for gastric emptying scintigraphy

Tagiling N, Ngo HW, Sahran NF, Mohamad Kamarulzaman MD, Wong MK, Mustaffa N, et al.

J Gastroenterol Hepatol, 2024 Nov;39(11):2465-2467.
PMID: 39188097 DOI: 10.1111/jgh.16729
Gastrointestinal parasites in rural dogs and cats in Selangor and Pahang states in Peninsular Malaysia

Ngui R, Lee SC, Yap NJ, Tan TK, Aidil RM, Chua KH, et al.

Acta Parasitol, 2014 Oct;59(4):737-44.
PMID: 25236287 DOI: 10.2478/s11686-014-0306-3

To estimate the current prevalence of gastrointestinal (GI) parasites in dogs and cats, a total of 105 fresh faecal samples were collected from rural areas in Peninsular Malaysia. Each faecal sample was examined for the presence of GI parasites by microscopic examination after formalin-ether concentration technique and for protozoa, trichrome and Ziehl-Neelsen staining were employed. The overall prevalence of GI parasitic infection was 88.6% (95% CI = 82.5-94.7) in which 88.3% of dogs and 89.3% of cats were infected with at least one parasites species, respectively. There were 14 different GI parasites species (nematodes, cestodes and protozoa) detected, including Ancylostoma spp. (62.9%), Toxocara spp. (32.4%), Trichuris vulpis (21.0%), Spirometra spp. (9.5%), Toxascaris leonina (5.7%), Dipylidium caninum (4.8%), Ascaris spp. (2.9%), Hymenolepis diminuta (1.0%) and others. General prevalence of GI parasites showed a significant difference between helminth (84.4%) and protozoa (34.3%) infections. Monoparasitism (38.1%) was less frequent than polyparasitism (46.7%). As several of these GI parasites are recognized as zoonotic agents, the results of this investigation revealed that local populations may be exposed to a broad spectrum of zoonotic agents by means of environmental contamination with dogs and cats faeces and this information should be used to mitigate public health risks. Prevention and control measures have to be taken in order to reduce the prevalence rates especially in socioeconomically disadvantaged communities where animals live in close proximity to people, poor levels of hygiene and overcrowding together with a lack in veterinary attention and zoonotic awareness.
Semi-quantitative and qualitative assessment of breast ultrasound elastography in differentiating between malignant and benign lesions

Alhabshi SM, Rahmat K, Abdul Halim N, Aziz S, Radhika S, Gan GC, et al.

Ultrasound Med Biol, 2013 Apr;39(4):568-78.
PMID: 23384468 DOI: 10.1016/j.ultrasmedbio.2012.10.016

The purpose of this study was to evaluate the diagnostic value of qualitative and semi-quantitative assessment of ultrasound elastography in differentiating between benign and malignant breast lesions. This prospective study was conducted in two tertiary medical centers. Consecutive B-mode ultrasound and real-time elastographic images were obtained for 67 malignant and 101 benign breast lesions in 168 women. Four experienced radiologists analyzed B-mode ultrasound alone and B-mode ultrasound combined with elastography independently. Conventional ultrasound findings were classified according to the American College of Radiology Breast Imaging Reporting and Data System classification. The elastographic assessment was based on qualitative and semi-quantitative parameters (i.e., strain pattern, width ratio, strain ratio). The sensitivity and specificity of combined elastography and conventional ultrasound were significantly higher than that of conventional ultrasound alone. The sensitivity, specificity, positive predictive value and negative predictive value was 97%, 61.4%, 62.5% and 96.8%, respectively, for conventional ultrasound and 100%, 93%, 99% and 90%, respectively, for combined technique. The semi-quantitative assessment with strain ratio and width ratio in elastography were the most useful parameters in differentiating between benign and malignant breast lesions. Cut-off point values for width ratio of more than 1.1 and strain ratio of more than 5.6 showed a high predictive value of malignancy with specificities of 84% and 76%, respectively (p
Fulltext Glycerolized Li+ Ion Conducting Chitosan-Based Polymer Electrolyte for Energy Storage EDLC Device Applications with Relatively High Energy Density

Asnawi ASFM, B Aziz S, M Nofal M, Hamsan MH, Brza MA, Yusof YM, et al.

Polymers (Basel), 2020 Jun 26;12(6).
PMID: 32604910 DOI: 10.3390/polym12061433

In this study, the solution casting method was employed to prepare plasticized polymer electrolytes of chitosan (CS):LiCO2CH3:Glycerol with electrochemical stability (1.8 V). The electrolyte studied in this current work could be established as new materials in the fabrication of EDLC with high specific capacitance and energy density. The system with high dielectric constant was also associated with high DC conductivity (5.19 × 10-4 S/cm). The increase of the amorphous phase upon the addition of glycerol was observed from XRD results. The main charge carrier in the polymer electrolyte was ion as tel (0.044) < tion (0.956). Cyclic voltammetry presented an almost rectangular plot with the absence of a Faradaic peak. Specific capacitance was found to be dependent on the scan rate used. The efficiency of the EDLC was observed to remain constant at 98.8% to 99.5% up to 700 cycles, portraying an excellent cyclability. High values of specific capacitance, energy density, and power density were achieved, such as 132.8 F/g, 18.4 Wh/kg, and 2591 W/kg, respectively. The low equivalent series resistance (ESR) indicated that the EDLC possessed good electrolyte/electrode contact. It was discovered that the power density of the EDLC was affected by ESR.
Fulltext From Cellulose, Shrimp and Crab Shells to Energy Storage EDLC Cells: The Study of Structural and Electrochemical Properties of Proton Conducting Chitosan-Based Biopolymer Blend Electrolytes

B Aziz S, H Hamsan M, M Nofal M, San S, Abdulwahid RT, Raza Saeed S, et al.

Polymers (Basel), 2020 Jul 09;12(7).
PMID: 32660095 DOI: 10.3390/polym12071526

In this study, solid polymer blend electrolytes (SPBEs) based on chitosan (CS) and methylcellulose (MC) incorporated with different concentrations of ammonium fluoride (NH4F) salt were synthesized using a solution cast technique. Both Fourier transformation infrared spectroscopy (FTIR) and X-ray diffraction (XRD) results confirmed a strong interaction and dispersion of the amorphous region within the CS:MC system in the presence of NH4F. To gain better insights into the electrical properties of the samples, the results of electrochemical impedance spectroscopy (EIS) were analyzed by electrical equivalent circuit (EEC) modeling. The highest conductivity of 2.96 × 10-3 S cm-1 was recorded for the sample incorporated with 40 wt.% of NH4F. Through transference number measurement (TNM) analysis, the fraction of ions was specified. The electrochemical stability of the electrolyte sample was found to be up to 2.3 V via the linear sweep voltammetry (LSV) study. The value of specific capacitance was determined to be around 58.3 F/g. The stability test showed that the electrical double layer capacitor (EDLC) system can be recharged and discharged for up to 100 cycles with an average specific capacitance of 64.1 F/g. The synthesized EDLC cell was found to exhibit high efficiency (90%). In the 1st cycle, the values of internal resistance, energy density and power density of the EDLC cell were determined to be 65 Ω, 9.3 Wh/kg and 1282 W/kg, respectively.
Supporting family doctors to address elder abuse: a quasi-experimental study in Malaysia

Mohd Mydin FH, Othman S, Choo WY, Hairi NNM, Hairi FM, Syed Karim SN, et al.

J Elder Abuse Negl, 2021 04 25;33(2):151-167.
PMID: 33899705 DOI: 10.1080/08946566.2021.1919272

This quasi-experimental study examined the effect of Supporting Family Doctors to Address Elder Abuse (SAFE) educational intervention among family doctors practicing at public primary care clinics in Malaysia. SAFE is an intensive, multimodal, locally tailored, and culturally sensitive face-to-face educational intervention on elder abuse. A significant mean score improvement of knowledge [Baseline: 5.33 (SD:1.33) to 6-month post-intervention: 6.45 (SD: 1.35); p<0.001] and perceived behavioral control [Baseline: 50.83 (SD: 8.87) to six-month post-intervention: 56.16 (SD: 9.56); p<0.001] observed in the intervention group compared to the control group. No significant difference in attitude, subjective norm, and practice scores between the two groups over time. SAFE educational intervention for family doctors was effective to improve but not sustainable knowledge and perceived behavioral control toward elder abuse identification and management. We recommend SAFE educational intervention as part of the continuous medical education for family doctors supplemented with a change in organization and national policy.
Mortality among elder abuse victims in rural Malaysia: A two-year population-based descriptive study

Yunus RM, Hairi NN, Choo WY, Hairi FM, Sooryanarayana R, Ahmad SN, et al.

J Elder Abuse Negl, 2017;29(1):59-71.
PMID: 27841737 DOI: 10.1080/08946566.2016.1260083

Our study aims at describing mortality among reported elder abuse experiences in rural Malaysia. This is a population-based cohort study with a multistage cluster sampling method. Older adults in Kuala Pilah (n = 1,927) were interviewed from November 2013 to May 2014. Mortality was traced after 2 years using the National Registration Department database. Overall, 139 (7.2%) respondents died. Fifteen (9.6%) abuse victims died compared to 124 (7.0%) not abused. Mortality was highest with financial abuse (13%), followed by psychological abuse (10.8%). There was a dose-response relationship between mortality and clustering of abuse: 7%, 7.7%, and 14.0% for no abuse, one type, and two types or more, respectively. Among abuse victims, 40% of deaths had ill-defined causes, 33% were respiratory-related, and 27% had cardiovascular and metabolic origin. Results suggest a link between abuse and mortality. Death proportions varied according to abuse subtypes and gender.
Fulltext A preliminary study on the specificity and sensitivity values and inter-rater reliability of MINI International Neuropsychiatric Interview (MINI) in Malaysia

Mukhtar F, Abu Bakar AK, Mat Junus M, Awaludin A, Abdul Aziz S, Midin M, et al.

ASEAN Journal of Psychiatry, 2012;13(2):157-164.
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Objective: The MINI International Neuropsychiatric Interview (MINI) is a short, structured diagnostic interview compatible with the Diagnostic and Statistical Manual of Mental Disorders-IV (DSM-IV). It was designed for clinical practice, research in psychiatric, primary care settings and epidemiological surveys. This preliminary study aims to evaluate the reliability and validity of the Malaysian Version of MINI for Major Depressive Disorder and Generalized Anxiety Disorder symptoms criteria only.

Methods: Six hours of MINI training was given as part of a National Health Morbidity Survey training program for layman interviewers (n=229) and three videos were prepared by an expert psychiatrist for inter-rater reliability purposes. Meanwhile, for validity purposes, the MINI was administered to patients with Major Depressive Disorder (n=30), Generalized Anxiety Disorder (n=20) and to a normal population (n=60), to conform against the Diagnostic and Statistical Manual of Mental Disorder (DSM-IV) that was administered by psychiatrists.

Results: Overall the inter-rater reliability was satisfactory (0.67 to 0.85) and the concordance between the MINI’s and expert diagnoses was good, with kappa values of greater than 0.88.

Conclusions: The Malay version of the MINI is adjusted to the clinical setting and for the assessment of positive cases in a community setting. Modifications were highlighted to correct any identified problems and to improve the reliability of the MINI for future research and clinical use.
Fulltext Gender Differences and Risk Factors of Recurrent Stroke in Type 2 Diabetic Malaysian Population with History of Stroke: The Observation from Malaysian National Neurology Registry

Aziz S, Sheikh Ghadzi SM, Abidin NE, Tangiisuran B, Zainal H, Looi I, et al.

J Diabetes Res, 2019;2019:1794267.
PMID: 31886276 DOI: 10.1155/2019/1794267

Background and Purpose: Diabetes mellitus has been reported as a strong independent risk factor for stroke recurrence. Data on the modifiable factors contributing to the recurrence of stroke in type 2 diabetic Malaysian population with a history of stroke stratified by genders are lacking, and this supports the importance of this study.
Method: The data of 4622 patients with T2DM who had a history of stroke was obtained from the Malaysian National Stroke Registry. Univariate analysis was performed to differentiate between genders with and without stroke recurrence in terms of demographics, first stroke attack presentations, and other clinical characteristics. The significant factors determined from the univariate analysis were further investigated using logistic regression.
Results: Ischemic heart diseases were found significantly associated with the stroke recurrence in males (OR = 1.738; 95% CI: 1.071-2.818) as well as female (OR = 5.859; 95% CI: 2.469-13.752) diabetic patients. The duration of hypertension, as well as the duration of diabetes, has been associated with the recurrence in both male and female subjects (p value < 0.05). Smoking status has an impact on the stroke recurrence in male subjects, while no significant association was observed among their peers.
Conclusions: Most of the predictive factors contributing to the recurrence of stroke in type 2 diabetic Malaysian population with a history of stroke are modifiable, in which IHD was the most prominent risk factor in both genders. The impact of optimizing the management of IHD as well as blood glucose control on stroke recurrence may need to be elucidated. No major differences in recurrent stroke predictors were seen between genders among the Malaysian population with type 2 diabetes mellitus who had a previous history of stroke.
Fulltext Systematic Review of Brain-Eating Amoeba: A Decade Update

Ahmad Zamzuri M'I, Abd Majid FN, Mihat M, Ibrahim SS, Ismail M, Abd Aziz S, et al.

Int J Environ Res Public Health, 2023 Feb 09;20(4).
PMID: 36833715 DOI: 10.3390/ijerph20043021

INTRODUCTION: Primary amoebic meningoencephalitis (PAM) is a rare but lethal infection of the brain caused by a eukaryote called Naegleria fowleri (N. fowleri). The aim of this review is to consolidate the recently published case reports of N. fowleri infection by describing its epidemiology and clinical features with the goal of ultimately disseminating this information to healthcare personnel.
METHODS: A comprehensive literature search was carried out using PubMed, Web of Science, Scopus, and OVID databases until 31 December 2022 by two independent reviewers. All studies from the year 2013 were extracted, and quality assessments were carried out meticulously prior to their inclusion in the final analysis.
RESULTS: A total of 21 studies were selected for qualitative analyses out of the 461 studies extracted. The cases were distributed globally, and 72.7% of the cases succumbed to mortality. The youngest case was an 11-day-old boy, while the eldest was a 75-year-old. Significant exposure to freshwater either from recreational activities or from a habit of irrigating the nostrils preceded onset. The symptoms at early presentation included fever, headache, and vomiting, while late sequalae showed neurological manifestation. An accurate diagnosis remains a challenge, as the symptoms mimic bacterial meningitis. Confirmatory tests include the direct visualisation of the amoeba or the use of the polymerase chain reaction method.
CONCLUSIONS: N. fowleri infection is rare but leads to PAM. Its occurrence is worldwide with a significant risk of fatality. The suggested probable case definition based on the findings is the acute onset of fever, headache, and vomiting with meningeal symptoms following exposure to freshwater within the previous 14 days. Continuous health promotion and health education activities for the public can help to improve knowledge and awareness prior to engagement in freshwater activities.
Anti-Diabetic Effect of Lactobacillus Paracasei Isolated from Malaysian Water Kefir Grains

Talib N, Mohamad NE, Yeap SK, Ho CL, Masarudin MJ, Abd-Aziz S, et al.

Probiotics Antimicrob Proteins, 2024 Dec;16(6):2161-2180.
PMID: 37755545 DOI: 10.1007/s12602-023-10159-2

The prevalence of type 2 diabetes mellitus (T2DM) is alarming because it is always linked to the increase in chronic diseases, mortality, and socioeconomic burden. Water kefir has a wide range of functional and probiotic characteristics attributed to the microorganisms present in the kefir grains. The present study aims to evaluate the in vivo anti-diabetic potential of the isolated Lactobacillus paracasei from Malaysian water kefir grains (MWKG) which was reported to have excellent probiotic properties and high antioxidant activities as reported previously. High-fat diet/streptozotocin (HFD/STZ) induction was used to obtain a T2DM model followed by treatment with the isolated L. paracasei from MWKG. The levels of glucose, insulin, and in vivo liver antioxidants were quantified after 14 weeks. Gene expression analysis of the liver was also carried out using microarray analysis, and several genes were selected for validation using quantitative real-time PCR. Insulin tolerance test demonstrated that the L. paracasei isolated from the MWKG alleviated T2DM by improving the area under the curve of the insulin tolerance test whereby low-dose and high-dose concentrations treated groups showed 2424.50 ± 437.02 mmol/L·min and 2017.50 ± 347.09 mmol/L·min, respectively, compared to untreated diabetic mice which was 3884.50 ± 39.36 mmol/L·min. Additionally, treatment with the isolated L. paracasei from MWKG regulated the expression of several genes related to glucose homeostasis and lipid metabolism in diabetic mice. These results suggested that the isolated L. paracasei from MWKG could be a potential dietary supplement for T2DM.
Patterns and Risk Factors of Soil-Transmitted Helminthiasis Among Orang Asli Subgroups in Peninsular Malaysia

Ngui R, Aziz S, Chua KH, Aidil RM, Lee SC, Tan TK, et al.

Am J Trop Med Hyg, 2015 Aug;93(2):361-70.
PMID: 26055746 DOI: 10.4269/ajtmh.13-0677

A cross-sectional study was conducted to provide comprehensive data on the patterns and associated risk factors of soil-transmitted helminth (STH) infections among five Orang Asli subgroups in Peninsular Malaysia. The overall prevalence of STH infections was 59.9% (95% confidence interval [CI] = 56.1-63.7%). Trichuris trichiura (54.3%; 95% CI = 50.4-58.2%) was the predominant species followed by Ascaris lumbricoides (26.7%; 95% CI = 23.3-30.1%) and hookworm (9.1%; 95% CI = 6.9-11.3%). This study showed diversity for STH infections by subgroup with poverty and personal sanitary behavior as important risk factors for infection. Risk profile analyses indicating that Orang Kuala subgroup who has a generally well-developed infrastructure and better quality of life had a low rate of infection. There is a need for poverty reduction and promotion of deworming programs along with mass scale campaigns to create awareness about health and hygiene to reduce STH infections.
A cluster randomized trial on improving nurses' detection and management of elder abuse and neglect (I-NEED): study protocol

Loh DA, Choo WY, Hairi NN, Othman S, Mohd Hairi F, Mohd Mydin FH, et al.

J Adv Nurs, 2015 Nov;71(11):2661-72.
PMID: 26031344 DOI: 10.1111/jan.12699

The aim of this study was to describe a trial protocol of an educational intervention for nurses to improve their awareness and practice in detecting and managing elder abuse and neglect.
Fulltext Analgesic Activity, Chemical Profiling and Computational Study on Chrysopogon aciculatus

Zihad SMNK, Bhowmick N, Uddin SJ, Sifat N, Rahman MS, Rouf R, et al.

Front Pharmacol, 2018;9:1164.
PMID: 30374304 DOI: 10.3389/fphar.2018.01164

Present study was undertaken to evaluate the analgesic activity of the ethanol extract of Chrysopogon aciculatus. In addition to bioassays in mice, chemical profiling was done by LC-MS and GC-MS to identify phytochemicals, which were further docked on the catalytic site of COX-2 enzymes with a view to suggest the possible role of such phytoconstituents in the observed analgesic activity. Analgesic activity of C. aciculatus was evaluated by acetic acid induced writhing reflex method and hot plate technique. Phytochemical profiling was conducted using liquid chromatography mass spectrometry (LC-MS) and gas chromatography mass spectrometry (GC-MS). In docking studies, homology model of human COX-2 enzyme was prepared using Easy Modeler 4.0 and the identified phytoconstituents were docked using Autodock Vina. Preliminary acute toxicity test of the ethanol extract of C. aciculatus showed no sign of mortality at the highest dose of 4,000 mg/kg. The whole plant extract significantly (p < 0.05) inhibited acetic acid induced writhing in mice at the doses of 500 and 750 mg/kg. The extract delayed the response time in hot plate test in a dose dependent manner. LC-MS analysis of the plant extract revealed the presence of aciculatin, nudaphantin and 5α,8α-epidioxyergosta-6,22-diene-3β-ol. Three compounds namely citronellylisobutyrate; 2,4-dihydroxy-7-methoxy-(2H)-1,4-benzoxazin-3(4H)-one and nudaphantin were identified in the n-hexane fraction by GC-MS. Among these compounds, six were found to be interacting with the binding site for arachidonic acid in COX-2 enzyme. Present study strongly supports the traditional use of C. aciculatus in the management of pain. In conclusion, compounds (tricin, campesterol, gamma oryzanol, and citronellyl isobutyrate) showing promising binding affinity in docking studies, along with previously known anti-inflammatory compound aciculatin can be held responsible for the observed activity.
Clinical recognition of elder maltreatment and intention to report among primary care doctors

Mohd Mydin FH, Othman S, Choo WY, Hairi NNM, Hairi FM, Syed Karim SN, et al.

J Elder Abuse Negl, 2020 02 21;32(1):72-83.
PMID: 32085693 DOI: 10.1080/08946566.2020.1731640

This study aimed to determine the primary care doctors' ability to recognize elder maltreatment and their intentions to report on such conditions. About 358 primary care doctors participated in this study. Outcomes were assessed using a validated five context-relevant clinical vignettes. Primary care doctor's recognition of sexual abuse was highest (91.0%); while the lowest (70.2%) in case signifying physical abuse. Despite being able to ascertain elder maltreatment, the intention to report the event is generally low even for cases exemplifying physical abuse, emotional abuse and neglect. However, intentions to report cases of sexual and financial abuse are 86.9% and 73.5% respectively. Findings highlighted the uncertainties of primary care doctors in distinguishing the clinical findings of non-accidental injuries and injuries due to acts of maltreatment. This provides support for educational intervention and guidelines or policies to improve the knowledge and skills of primary care doctors to intervene in elder maltreatment.

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