Browse publications by year: 2021

  1. Hu TH, Rosli N, Mohamad DSA, Kadir KA, Ching ZH, Chai YH, et al.
    Sci Rep, 2021 10 11;11(1):20117.
    PMID: 34635723 DOI: 10.1038/s41598-021-99644-8
    Plasmodium knowlesi, a simian malaria parasite responsible for all recent indigenous cases of malaria in Malaysia, infects humans throughout Southeast Asia. There are two genetically distinct subpopulations of Plasmodium knowlesi in Malaysian Borneo, one associated with long-tailed macaques (termed cluster 1) and the other with pig-tailed macaques (cluster 2). A prospective study was conducted to determine whether there were any between-subpopulation differences in clinical and laboratory features, as well as in epidemiological characteristics. Over 2 years, 420 adults admitted to Kapit Hospital, Malaysian Borneo with knowlesi malaria were studied. Infections with each subpopulation resulted in mostly uncomplicated malaria. Severe disease was observed in 35/298 (11.7%) of single cluster 1 and 8/115 (7.0%) of single cluster 2 infections (p = 0.208). There was no clinically significant difference in outcome between the two subpopulations. Cluster 1 infections were more likely to be associated with peri-domestic activities while cluster 2 were associated with interior forest activities consistent with the preferred habitats of the respective macaque hosts. Infections with both P. knowlesi subpopulations cause a wide spectrum of disease including potentially life-threatening complications, with no implications for differential patient management.
    MeSH terms: Adult; Female; Follow-Up Studies; Genetics, Population; Humans; Laboratories/statistics & numerical data*; Malaria/epidemiology*; Malaria/parasitology; Malaysia/epidemiology; Male; Middle Aged; Prognosis; Prospective Studies; Biomarkers/analysis*; DNA, Protozoan/analysis; DNA, Protozoan/genetics*; Plasmodium knowlesi/classification; Plasmodium knowlesi/genetics; Plasmodium knowlesi/growth & development; Plasmodium knowlesi/isolation & purification*
  2. Ray J, Subandiyah S, Rincon-Florez VA, Prakoso AB, Carvalhais L, Drenth A
    Phytopathology, 2021 Oct 12.
    PMID: 34636648 DOI: 10.1094/PHYTO-07-21-0311-R
    The bacterium Ralstonia syzygii subsp. celebesensis causes Blood disease of banana, a vascular wilt of economic significance in Indonesia and Malaysia. Blood disease has expanded its geographic range in the last 20 years and is an emerging threat to Southeast Asian banana production. Many aspects of the disease cycle and biology are not well understood, including the ability of different parts of the female and male inflorescence of banana to act as infection courts. This study confirms that the banana varieties of Cavendish, and Kepok 'Kuning' are susceptible to Blood disease and that an inoculum concentration of 102 CFU.mL-1 of R. syzygii subsp. celebesensis is adequate to initiate disease following pseudostem inoculation. Data show that infection occurs through both the male and female parts of a banana inflorescence and the rachis when snapped to remove the male bell. The infection courts are the female flowers, the male bell bract scar, the male bell flower cushion, the snapped rachis, and deflowered fingers. The location of these infection courts concurs with the dye studies demonstrating that dye externally applied to these plants parts enters the plant vascular system. Thus, the hypothesis is supported that infection of R. syzygii subsp. celebesensis occurs through open xylem vessels of the male and female parts of the banana inflorescence.
  3. Zailan AAD, Karunakaran T, Abu Bakar MH, Mian VJY
    Nat Prod Res, 2021 Oct 12.
    PMID: 34636709 DOI: 10.1080/14786419.2021.1982936
    Genus Calophyllum from the family of Calophyllaceae is an evergreen broad-leaved tree that is endemic to Southeast Asia, especially Malaysia. They have been reported for various ethnomedicinal uses in traditional medicine. Previous studies of Malaysian Calophyllum species revealed them to be a rich source of bioactive phytoconstituents such as xanthones, coumarins, terpenoids, and chromanone acids. To date, the extracts and compounds from Malaysian Calophyllum species have shown a broad spectrum of pharmacological activities. For example, calanolide A, a coumarin isolated from Malaysian C. lanigerum, has now reached clinical development to become an anti-HIV drug. This article presents an overview of the significant phytochemical and pharmacological activities of Malaysian Calophyllum species to aid researchers in further discovery of potential benefits of various species of this genus.
  4. Singh DKA, Goh JW, Shaharudin MI, Shahar S
    JMIR Mhealth Uhealth, 2021 10 12;9(10):e23663.
    PMID: 34636740 DOI: 10.2196/23663
    BACKGROUND: Recent falls prevention guidelines recommend early routine fall risk assessment among older persons.

    OBJECTIVE: The purpose of this study was to develop a Falls Screening Mobile App (FallSA), determine its acceptance, concurrent validity, test-retest reliability, discriminative ability, and predictive validity as a self-screening tool to identify fall risk among Malaysian older persons.

    METHODS: FallSA acceptance was tested among 15 participants (mean age 65.93 [SD 7.42] years); its validity and reliability among 91 participants (mean age 67.34 [SD 5.97] years); discriminative ability and predictive validity among 610 participants (mean age 71.78 [SD 4.70] years). Acceptance of FallSA was assessed using a questionnaire, and it was validated against a comprehensive fall risk assessment tool, the Physiological Profile Assessment (PPA). Participants used FallSA to test their fall risk repeatedly twice within an hour. Its discriminative ability and predictive validity were determined by comparing participant fall risk scores between fallers and nonfallers and prospectively through a 6-month follow-up, respectively.

    RESULTS: The findings of our study showed that FallSA had a high acceptance level with 80% (12/15) of older persons agreeing on its suitability as a falls self-screening tool. Concurrent validity test demonstrated a significant moderate correlation (r=.518, P

    MeSH terms: Aged; Aged, 80 and over; Humans; Reproducibility of Results; Geriatric Assessment; Independent Living; Mobile Applications*
  5. Fulcher GR, Jarlov H, Piltoft JS, Singh KP, Liu L, Mohamed M, et al.
    Endocrine, 2021 12;74(3):530-537.
    PMID: 34637072 DOI: 10.1007/s12020-021-02887-8
    PURPOSE: IDegAsp, a co-formulation of long-acting basal (insulin degludec) and rapid-acting bolus (insulin aspart) insulin, provides separate prandial and basal glucose-lowering effects with relatively low risk of hypoglycaemia. Its efficacy and safety have been investigated in a large clinical trial programme (BOOST). We present the rationale and design of the ARISE study, which aims to assess glycaemic control and other clinical parameters associated with IDegAsp use in real world.

    METHODS: ARISE is a ~26-wk-long, prospective, non-interventional, single-arm study of patients with type 2 diabetes (T2D) initiating IDegAsp treatment. Approximately 1112 patients with T2D aged ≥18 years previously on anti-hyperglycaemic drugs except IDegAsp will be enroled across six countries from 15 Aug 2019 to 12 Nov 2020. IDegAsp treatment will be initiated at the physicians' discretion and as per the local label. Key exclusion criteria include previous participation, or previous IDegAsp treatment. The primary and secondary endpoints are change in HbA1c from baseline (wk 0) to study end (wk 26-36) and the proportion of patients achieving the target HbA1c level of <7% at the study end, respectively. A mixed model for repeated measurements will analyse the primary endpoint.

    CONCLUSION: Between-country differences in the prescription patterns of glucose-lowering agents in people with T2D warrant examination of their clinical use in different geographical settings. The ARISE study is designed to assess the clinical use of IDegAsp from real world in six different countries. Findings from the ARISE study will supplement those of previous randomised controlled studies by establishing real-world evidence of IDegAsp use in the participating countries.

    TRIAL REGISTRATION: ClinicalTrials.gov, NCT04042441. Registered 02 August 2014, https://clinicaltrials.gov/ct2/show/NCT04042441.

    MeSH terms: Adolescent; Adult; Blood Glucose; Hemoglobin A, Glycosylated/analysis; Humans; Hypoglycemic Agents/therapeutic use; Prospective Studies; Insulin, Long-Acting; Insulin Aspart*
  6. Cai M, Li X, Zhao H, Liu C, You Y, Lin F, et al.
    PMID: 34637273 DOI: 10.1021/acsami.1c15973
    Broadening light absorption and improving charge carrier separation are very critical to boost the water splitting efficiency in photoelectrochemical (PEC) systems. We herein reported a heterostructured photoanode consisting of BiVO4 and eco-friendly, near-infrared (NIR) CuInSeS@ZnS core-shell quantum dots (QDs) for PEC water oxidation. The decoration of core-shell QDs concurrently extends the absorption range of BiVO4 from the ultraviolet-visible to NIR region and promotes the effective separation and transfer of photo-excited electrons and holes. Without any sacrificial agents and co-catalysts, the as-fabricated NIR core-shell QDs/BiVO4 heterostructured photoanodes exhibit an approximately fourfold higher photocurrent density than that of the bare BiVO4, up to 3.17 mA cm-2 at 1.23 V versus the reversible hydrogen electrode. It is revealed that both a suitable band alignment and an intimate interfacial junction between QDs and BiVO4 are the main factors that result in enhanced charge separation and transfer efficiencies. We also highlight that the NIR CISeS QDs passivated with a ZnS shell can suppress the non-radiative recombination and enhance the stability of the QD photoanodes for optimized PEC performance. This work provides a facile and effective approach to boost the water oxidation efficiency of semiconductor photoanodes via utilizing NIR core-shell QDs as a light sensitizer and charge carrier separator.
  7. Ponnusamy A, Ajis AH, Tan YS, Chai LC
    J Appl Microbiol, 2021 Oct 12.
    PMID: 34637602 DOI: 10.1111/jam.15327
    AIMS: Green-mould contamination is identified as one of the challenges faced by mushroom cultivation industry globally which believed to be caused by Trichoderma spp.

    METHODS AND RESULTS: To explore the dynamics of microbial population in mushroom substrate during commercial mushroom cultivation and how microbiota might play a role in green-mould contamination, we applied both culturing and targeted metagenomics approaches to identify microbiota in noncomposted sawdust substrates at different cultivation stages. The microbiological analysis showed that the green-mould contaminated substrates harboured higher total mesophilic bacteria count. The green-moulds isolated from the contaminated mushroom substrates were identified as Trichoderma pleurotum (n = 15; 93.8%) and Graphium penicillioides (n = 1; 6.3%). To our surprise, the targeted metagenomic analysis revealed that Graphium comprised 56.3% while Trichoderma consisted of only 36.1% of the total fungi population, suggesting that green-mould contamination might not be caused by Trichoderma alone, but also Graphium that grows very slowly in the laboratory.

    CONCLUSION: It is worthwhile to note that G. penicillioides was also isolated in the early stages of mushroom cultivation, but not T. pleurotum. The results indicated that the structure and composition of the bacterial population in the mushroom substrate varied and the bacterial population shifted along the cultivation process.

    SIGNIFICANCE AND IMPACT OF STUDY: This study revealed a possibility of G. penicillioides as an overlooked fungi causing green-mould contamination.

  8. Sha'ari N, Woon LS, Sidi H, Das S, Bousman CA, Mohamed Saini S
    Phytomedicine, 2021 Dec;93:153760.
    PMID: 34638031 DOI: 10.1016/j.phymed.2021.153760
    BACKGROUND: Female sexual dysfunction (FSD) includes female orgasmic disorder, female sexual interest or arousal disorder, and genito-pelvic pain or penetration disorder. FSD affects 40% of women worldwide, but it is understudied and likely undertreated. Natural products are frequently used by women to treat FSD, but scientific evidence of their efficacy is lacking.

    OBJECTIVE: This systematic review and meta-analysis focused on the study of the efficacy of natural products on FSD.

    STUDY DESIGN: Systematic review and meta-analysis of existing studies on natural products in the treatment of FSD.

    METHODS: The literature search included MEDLINE, EMBASE, PsycINFO, and the Cochrane Central Register of Controlled Trial databases for studies published from January 2000 to February 2020. The quality and the level of evidence of the studies were assessed. The association between natural products and FSD was summarized using standardized mean differences (SMD) with a 95% confidence interval (CI).

    RESULTS: A total of 536 studies were identified, with 20 of them meeting the criteria. According to this meta-analysis, Tribulus terrestris showed a significant positive effect in improving overall female sexual function (SMD = 1.12, 95% CI = 0.46 - 1.79, p = 0.001) and individual sexual arousal (SMD = 1.03, 95% CI = 0.22 - 1.84, p = 0.013), sexual desire (SMD = 1.08, 95% CI = 0.52 - 1.63, p ≤ 0.001) and sexual orgasm (SMD = 0.51, 95% CI = 0.02 - 1.00, p = 0.040) domains compared to placebo. Panax ginseng was found to be effective in treating sexual arousal (SMD = 0.54, 95% CI = 0.11 - 0.97, p = 0.014) and sexual desire (SMD = 0.59, 95% CI = 0.27 - 0.90, p < 0.001) compared to placebo. Meanwhile, other natural products reviewed in this study, such as Trifolium pretense, did not differ significantly from placebo in terms of improving FSD.

    CONCLUSION: Preliminary evidence suggests that Tribulus terrestris and Panax ginseng may be effective as alternative treatments for FSD in a clinical setting.

    MeSH terms: Female; Humans
  9. Rusmin R, Sarkar B, Mukhopadhyay R, Tsuzuki T, Liu Y, Naidu R
    J Colloid Interface Sci, 2021 Sep 22;608(Pt 1):575-587.
    PMID: 34628317 DOI: 10.1016/j.jcis.2021.09.109
    Development of polymeric magnetic adsorbents is a promising approach to obtain efficient treatment of contaminated water. However, the synthesis of magnetic composites involving multiple components frequently involves tedious preparation steps. In the present study, a magnetic chitosan-palygorskite (MCP) nanocomposite was prepared through a straight-forward one pot synthesis approach to evaluate its lead (Pb2+) removal capacity from aqueous solution. The nano-architectural and physicochemical properties of the newly-developed MCP composite were described via micro- and nano-morphological analyses, and crystallinity, surface porosity and magnetic susceptibility measurements. The MCP nanocomposite was capable to remove up to 58.5 mg Pb2+ g-1 of MCP from water with a good agreement of experimental data to the Langmuir isotherm model (R2 = 0.98). The Pb2+ adsorption process on MCP was a multistep diffusion-controlled phenomenon evidenced by the well-fitting of kinetic adsorption data to the intra-particle diffusion model (R2 = 0.96). Thermodynamic analysis suggested that the adsorption process at low Pb2+ concentration was controlled by chemisorption, whereas that at high Pb2+ concentration was dominated by physical adsorption. X-ray photoelectron and Fourier transform infrared spectroscopy results suggested that the Pb adsorption on MCP was governed by surface complexation and chemical reduction mechanisms. During regeneration, the MCP retained 82% Pb2+ adsorption capacity following four adsorption-desorption cycles with ease to recover the adsorbent using its strong magnetic property. These findings highlight the enhanced structural properties of the easily-prepared nanocomposite which holds outstanding potential to be used as an inexpensive and green adsorbent for remediating Pb2+ contaminated water.
  10. Kravchenko I, Rudyk I, Medentseva O
    PMID: 34628401
    Over the past decades, there has been an active scientific search for drugs that can increase myocardial contractility and improve the course of heart failure. Omecamtiv Mecarbil, a drug from the group of cardiac myosin activators, heads the list of applicants for clinical use. The article presents the results of several randomized clinical trials which studied the efficacy and safety of Omecamtiv Mecarbil in heart failure: ATOMIC-AHF, COSMIC-HF and GALACTIC-HF. ATOMIC-AHF showed a tendency to reduce the risk of developing supraventricular and ventricular arrhythmias in heart failure. COSMIC-HF has proven the ability of Omecamtiv Mecarbil to improve the quality of life of patients with heart failure. GALACTIC-HF may be a turning point in the medical treatment of heart failure. For the first time, clinical evidence of the ability of the selective cardiac myosin activator Omecamtiv Mecarbil to improve myocardial contractile function, reduce the severity of symptoms of heart failure and reduce the risk of cardiovascular death was obtained.
    MeSH terms: Humans; Myosins; Quality of Life; Stroke Volume; Urea/analogs & derivatives; Treatment Outcome; Myocytes, Cardiac*
  11. Deo P, Dhillon VS, Thomas P, Fenech M
    PMID: 34628492 DOI: 10.1093/gerona/glab307
    Red blood cell (RBC) fatty acids status is used as a biomarker of dietary intake of fats however, there is still a paucity of evidence regarding individual fatty acids and modulation of endogenous advanced glycation end-product (AGE) levels. Due to membrane PUFA being a well-known target for peroxidation, we hypothesized that cellular PUFAs are positively associated with circulatory N ε-carboxymethyllysine (CML) that is also influenced by glyoxal (GO) levels in healthy cohorts. To test this, we investigated the association between RBC fatty acids and circulatory AGEs biomarkers in healthy individuals. The results showed a negative association between saturated fatty acids (SFA) and CML and stepwise multivariate regression analysis indicated stearic acid was negatively associated with CML levels (β = -0.200, p=0.008) after adjusting for age, BMI, and gender. In addition, stearic acid: palmitic acid ratio was also negatively correlated with plasma concentrations of CML (rp= -0.191, p = 0.012) and glucose (rp= -0.288, p = 0.0001). Polyunsaturated fatty acids (PUFA) showed a positive association with CML levels particularly, docosapentaenoic acid, γ-Linolenic acid, arachidonic acid, and docosadienoic acid. However, these associations were not evident after the multiple regression analysis adjusted for age, BMI, and gender. A strong negative correlation (rp= -0.98, p< 0.0001) between total PUFA and total SFA was observed. Furthermore, the SFA:PUFA ratio was inversely correlated with CML (rp= -0.227, p< 0.003). Overall, this study indicates that different fats and their combinations may influence the formation of AGEs and that carefully controlled interventions are required to further test this hypothesis.
  12. Lau BL, Vijian K, Liew DNS, Wong ASH
    Neurosurg Rev, 2021 Oct 10.
    PMID: 34628562 DOI: 10.1007/s10143-021-01671-6
    The objective of this study is to determine the factors that are associated with the diagnostic yield of stereotactic brain biopsy. A retrospective analysis was performed on 50 consecutive patients who underwent stereotactic brain biopsies in a single institute from 2014 to 2019. Variables including age, gender, lesion topography and characteristics, biopsy methods, and surgeon's experience were analyzed along with diagnostic rate. This study included 31 male and 19 female patients with a mean age of 48.4 (range: 1-76). Of these, 25 underwent frameless brain-suite stereotactic biopsies, 15 were frameless Portable Brain-lab® stereotactic biopsies and 10 were frame-based CRW® stereotactic biopsies. There was no statistical difference between the diagnostic yield of the three methods. The diagnostic yield in our series was 76%. Age, gender, and biopsy methods had no impact on diagnostic yield. Periventricular and pineal lesion biopsies were significantly associated with negative diagnostic yield (p = 0.01) whereas larger lesions were significantly associated with a positive yield (p = 0.01) with the mean volume of lesions in the positive yield group (13.6 cc) being higher than the negative yield group (7 cc). The diagnostic yields seen between senior and junior neurosurgeons in the biopsy procedure were 95% and 63%, respectively (p = 0.02). Anatomical location of the lesion, volume of the lesion, and experience of the surgeon have significant impacts on the diagnostic yield in stereotactic brain biopsy. There was no statistical difference between the diagnostic yield of the three methods, age, gender, and depth of lesion.
  13. Ab Mumin N, Yusof ZYM, Marhazlinda J, Obaidellah U
    Int J Dent Hyg, 2021 Oct 10.
    PMID: 34628709 DOI: 10.1111/idh.12556
    OBJECTIVE: Having good oral hygiene self-care, especially a regular toothbrushing habit will promote lifelong oral health. Therefore, understanding the factors that influence an adolescent's oral hygiene behaviour is important in developing effective oral health programmes for this age group. This study aimed to explore the motivators and barriers to adolescents' oral hygiene self-care by exploring the perspectives of secondary school students from three government schools in the state of Selangor, Malaysia.

    METHODS: Focus group discussions (FGD) were conducted with Form 2 (14-years-old) and Form 4 (16-years-old) students from selected secondary schools in Selangor using a semi-structured topic guide until data saturation was reached. Data were transcribed verbatim and analysed using framework method analysis.

    RESULTS: A total of 10 FGDs were conducted involving 77 adolescents. The motivators for good oral hygiene self-care were appearance, fear of oral disease, consequences of oral disease and past toothache experience. The barriers for oral hygiene self-care were poor attitude towards oral care, lack of confidence in toothbrushing skills, snacking habit and the taste of toothpaste.

    CONCLUSION: Understanding the motivators and barriers to adolescents' oral hygiene self-care is the first step in designing effective oral health education messages. The findings from this study can be used as a guide for oral health education programmes and development of materials that fulfil the needs of the adolescent population.

  14. Gharaei N, Ismail W, Grosan C, Hendradi R
    Artif Intell Med, 2021 10;120:102151.
    PMID: 34629147 DOI: 10.1016/j.artmed.2021.102151
    Tele-rehabilitation is an alternative to the conventional rehabilitation service that helps patients in remote areas to access a service that is practical in terms of logistics and cost, in a controlled environment. It includes the usage of mobile phones or other wireless devices that are applied to rehabilitation exercises. Such applications or software include exercises in the form of virtual games, treatment monitoring based on the rehabilitation progress and data analysis. However, nowadays, physiotherapists use a default profiling setting for patients carrying out rehabilitation, due to lack of information. Medical Interactive Rehabilitation Assistant (MIRA) is a computer-based (virtual reality) rehabilitation platform. The profile setting includes: a level of difficulty, percentage of tolerance and maximum range. To the best of our knowledge, there is a lack of optimization in the parameter values setting of MIRA exergames that could enhance patients' performance. Generally, non-optimal profile setting leads to reduced effectiveness. Therefore, this study aims to develop a method that optimizes the profile setting of each patient according to the estimated (desired) optimal results. The proposed method is developed using unsupervised and supervised machine learning techniques. We use Self-Organizing Map (SOM) to cluster patient records into several distinct clusters. K-fold cross validation is applied to construct the prediction models. Classification And Regression Tree (CART) is utilized to predict the patient's optimal input setting for playing the MIRA games. The combination of these techniques seems to improve the efficiency of the standard (default) way in predicting the optimal settings for exergames. To evaluate the proposed method, we conduct an experiment with data collected from a rehabilitation center. We use three metrics to quantify the quality of the results: R-squared (R2), Mean Absolute Error (MAE) and Root Mean Square Error (RMSE). The results of experimental analysis demonstrate that the proposed method is effective in predicting the adequate parameter setting in MIRA platform. The method has potential to be implemented as an intelligent system for MIRA prediction in healthcare. Moreover, the method could be extended to similar platforms for which data is available to train our method on.
    MeSH terms: Algorithms; Exercise Therapy*; Humans; Software; Exercise*
  15. Leddin D, Omary MB, Veitch A, Metz G, Amrani N, Aabakken L, et al.
    Gastroenterology, 2021 11;161(5):1354-1360.
    PMID: 34629165 DOI: 10.1053/j.gastro.2021.08.001
    MeSH terms: Conservation of Natural Resources*; Disposable Equipment; Gastroenterology*; Humans; Equipment Reuse; Medical Waste Disposal*; Climate Change*; Carbon Footprint*; Recycling
  16. Tasrip NA, Mohd Desa MN, Khairil Mokhtar NF, Sajali N, Mohd Hashim A, Ali ME, et al.
    J Food Sci Technol, 2021 Dec;58(12):4504-4513.
    PMID: 34629514 DOI: 10.1007/s13197-020-04932-2
    Low DNA concentration recovered from highly processed products such as gelatin and gelatin-based products renders difficulty in detecting porcine contamination using conventional PCR techniques. We documented here a porcine-specific loop-mediated isothermal amplification (LAMP) to identify porcine traces in gelatin products. The porcine-specific primers were designed according to mitochondrial DNA of Cytochrome b gene sequence. Here we used two different reaction mixtures for LAMP assay (GENIE and MYRM) against the same DNA samples extracted from gelatin products and porcine-specific primers to detect the presence of porcine DNA. The porcine-specific primers were shown to be specific only to Sus scrofa against 14 DNA of other meat species. The analytical sensitivity of the LAMP assay for porcine DNA detection is 1 pg/µL using both GENIE (within 30 m) and MYRM (within 60 m) reaction mixtures. Analysis against 32 samples of gelatin products showed that five samples were found to contain porcine DNA; two samples out of six gelatin powder samples and three gelatin capsule samples out of nine. Out of these five positive samples, three were not labeled containing porcine gelatin. Overall, LAMP assay in this study showed an excellent specificity, sensitivity and rapidity in detection of porcine DNA in gelatin products.

    SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at (10.1007/s13197-020-04932-2).

  17. Ishak NH, Shaik MI, Yellapu NK, Howell NK, Sarbon NM
    J Food Sci Technol, 2021 Dec;58(12):4567-4577.
    PMID: 34629521 DOI: 10.1007/s13197-020-04944-y
    Hypertension is a threatening chronic disease, which become a global killer among the adult population. The mortality rate increasing day by day even several Angiotensin I-converting enzyme (ACE) inhibitor drugs were introduced. Bioactive peptides derived from aquatic resources exhibits potential ACE inhibitory activity. The objective of this work is to report the purification and molecular docking studies of angiotensin-I converting enzyme (ACE) inhibitory peptide isolated from shortfin scad (Decapterus macrosoma) waste protein hydrolysate (SWH), enzymatically prepared by using alcalase. The purification process included ultrafiltration, gel filtration and reverse phase high performance liquid chromatography (RP-HPLC). Results showed that ultra-filtered peptide fraction (
  18. Ismail MA, Chong GH, Ismail-Fitry MR
    J Food Sci Technol, 2021 Dec;58(12):4703-4710.
    PMID: 34629534 DOI: 10.1007/s13197-020-04960-y
    This work aimed to evaluate the microstructural, physicochemical and sensorial properties of buffalo meat patties produced using different mixing equipment (bowl cutter, universal mixer, and meat mixer). Scanning electron microscopy revealed a more homogenize emulsion, cohesive structure and smaller pore size of patties produced using the bowl cutter, which significantly reduced the total fluid release, water release, fat release and cooking loss as compared to the universal mixer and meat mixer. Production of the buffalo meat patties using bowl cutter also improved the moisture retention and gel strength of the patties. The patties produced using bowl cutter had the significantly highest lightness and yellowness values, while the redness was the lowest. Lower hardness, gumminess and chewiness also were observed from the patties produced using bowl cutter. Quality of the microstructural and physicochemical properties of the patties produced using different equipment can be organized as bowl cutter > universal mixer > meat mixer. Nevertheless, the sensory evaluation demonstrated a higher preference on aroma, flavour and overall acceptability of patties produced using meat mixer due to coarser and meaty texture, while the colour, tenderness, juiciness and springiness did not differ against using bowl cutter and universal mixer.
  19. Maluin SM, Osman K, Jaffar FHF, Ibrahim SF
    Front Physiol, 2021;12:732420.
    PMID: 34630149 DOI: 10.3389/fphys.2021.732420
    Exposure to radiofrequency electromagnetic radiation (RF-EMR) from various wireless devices has increased dramatically with the advancement of technology. One of the most vulnerable organs to the RF-EMR is the testes. This is due to the fact that testicular tissues are more susceptible to oxidative stress due to a high rate of cell division and mitochondrial oxygen consumption. As a result of extensive cell proliferation, replication errors occur, resulting in DNA fragmentation in the sperm. While high oxygen consumption increases the level of oxidative phosphorylation by-products (free radicals) in the mitochondria. Furthermore, due to its inability to effectively dissipate excess heat, testes are also susceptible to thermal effects from RF-EMR exposure. As a result, people are concerned about its impact on male reproductive function. The aim of this article was to conduct a review of literature on the effects of RF-EMR emitted by wireless devices on male reproductive hormones in experimental animals and humans. According to the findings of the studies, RF-EMR emitted by mobile phones and Wi-Fi devices can cause testosterone reduction. However, the effect on gonadotrophic hormones (follicle-stimulating hormone and luteinizing hormone) is inconclusive. These findings were influenced by several factors, which can influence energy absorption and the biological effect of RF-EMR. The effect of RF-EMR in the majority of animal and human studies appeared to be related to the duration of mobile phone use. Thus, limiting the use of wireless devices is recommended.
  20. Bibi R, Saeed Y, Zeb A, Ghazal TM, Rahman T, Said RA, et al.
    Comput Intell Neurosci, 2021;2021:6262194.
    PMID: 34630550 DOI: 10.1155/2021/6262194
    Road surface defects are crucial problems for safe and smooth traffic flow. Due to climate changes, low quality of construction material, large flow of traffic, and heavy vehicles, road surface anomalies are increasing rapidly. Detection and repairing of these defects are necessary for the safety of drivers, passengers, and vehicles from mechanical faults. In this modern era, autonomous vehicles are an active research area that controls itself with the help of in-vehicle sensors without human commands, especially after the emergence of deep learning (DNN) techniques. A combination of sensors and DNN techniques can be useful for unmanned vehicles for the perception of their surroundings for the detection of tracks and obstacles for smooth traveling based on the deployment of artificial intelligence in vehicles. One of the biggest challenges for autonomous vehicles is to avoid the critical road defects that may lead to dangerous situations. To solve the accident issues and share emergency information, the Intelligent Transportation System (ITS) introduced the concept of vehicular network termed as vehicular ad hoc network (VANET) for achieving security and safety in a traffic flow. A novel mechanism is proposed for the automatic detection of road anomalies by autonomous vehicles and providing road information to upcoming vehicles based on Edge AI and VANET. Road images captured via camera and deployment of the trained model for road anomaly detection in a vehicle could help to reduce the accident rate and risk of hazards on poor road conditions. The techniques Residual Convolutional Neural Network (ResNet-18) and Visual Geometry Group (VGG-11) are applied for the automatic detection and classification of the road with anomalies such as a pothole, bump, crack, and plain roads without anomalies using the dataset from different online sources. The results show that the applied models performed well than other techniques used for road anomalies identification.
    MeSH terms: Artificial Intelligence; Humans; Transportation; Neural Networks (Computer)
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