Displaying publications 181 - 200 of 411 in total

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  1. Fulltext Climate change affecting oil palm agronomy, and oil palm cultivation increasing climate change, require amelioration
    Paterson RRM, Lima N
    Ecol Evol, 2018 01;8(1):452-461.
    PMID: 29321885 DOI: 10.1002/ece3.3610
    Palm oil is used in various valued commodities and is a large global industry worth over US$ 50 billion annually. Oil palms (OP) are grown commercially in Indonesia and Malaysia and other countries within Latin America and Africa. The large-scale land-use change has high ecological, economic, and social impacts. Tropical countries in particular are affected negatively by climate change (CC) which also has a detrimental impact on OP agronomy, whereas the cultivation of OP increases CC. Amelioration of both is required. The reduced ability to grow OP will reduce CC, which may allow more cultivation tending to increase CC, in a decreasing cycle. OP could be increasingly grown in more suitable regions occurring under CC. Enhancing the soil fauna may compensate for the effect of CC on OP agriculture to some extent. The effect of OP cultivation on CC may be reduced by employing reduced emissions from deforestation and forest degradation plans, for example, by avoiding illegal fire land clearing. Other ameliorating methods are reported herein. More research is required involving good management practices that can offset the increases in CC by OP plantations. Overall, OP-growing countries should support the Paris convention on reducing CC as the most feasible scheme for reducing CC.
    Matched MeSH terms: Africa
  2. Fulltext Whole genome sequencing data and analysis of a rifampicin-resistant Mycobacterium tuberculosis strain SBH162 from Sabah, Malaysia
    Jani J, Mustapha ZA, Jamal NB, Stanis CS, Ling CK, Avoi R, et al.
    Data Brief, 2019 Oct;26:104445.
    PMID: 31534995 DOI: 10.1016/j.dib.2019.104445
    A Mycobacterium tuberculosis strain SBH162 was isolated from a 49-year-old male with pulmonary tuberculosis. GeneXpert MDR/RIF identified the strain as rifampicin-resistant M. tuberculosis. The whole genome sequencing was performed using Illumina HiSeq 4000 system to further investigate and verify the mutation sites of the strain through genetic analyses namely variant calling using bioinformatics tools. The de novo assembly of genome generated 100 contigs with N50 of 156,381bp. The whole genome size was 4,343,911 bp with G + C content of 65.58% and consisted of 4,306 predicted genes. The mutation site, S450L, for rifampicin resistance was detected in the rpoB gene. Based on the phylogenetic analysis using the Maximum Likelihood method, the strain was identified as belonging to the Europe America Africa lineage (Lineage 4). The genome dataset has been deposited at DDBJ/ENA/GenBank under the accession number SMOE00000000.
    Matched MeSH terms: Africa
  3. River flow, zooplankton and dominant zooplanktivorous fish dynamics in a warm-temperate South African estuary
    Mbandzi N, Wasserman RJ, Deyzel SHP, Vine NG, Whitfield AK
    J Fish Biol, 2018 Jun;92(6):1747-1767.
    PMID: 29696653 DOI: 10.1111/jfb.13617
    The possible links between river flow, zooplankton abundance and the responses of zooplanktivorous fishes to physico-chemical and food resource changes are assessed. To this end, the seasonal abundance, distribution and diet of the estuarine round-herring Gilchristella aestuaria and Cape silverside Atherina breviceps were studied in the Kariega Estuary. Spatio-temporal differences were determined for selected physico-chemical variables, zooplankton abundance and zooplanktivorous fish abundance and distribution. Results indicated that, following a river flood event in winter (>30 m3  s-1 ), altered physico-chemical conditions occurred throughout the estuary and depressed zooplankton stocks. Abundance of G. aestuaria was highest in spring, with this species dominant in the upper and middle zones of the estuary, while A. breviceps was dominant in summer and preferred the middle and lower zones. The catch per unit of effort of both zooplanktivores also declined significantly following the flooding, thus suggesting that these fishes are reliant on zooplankton as a primary food source for healthy populations. Copepods dominated the stomach contents of both fish species, indicating a potential for strong interspecific competition for food, particularly in the middle reaches. Temporal differences were evident in dietary overlap between the two zooplanktivorous fish species and were correlated with river flow, zooplankton availability and fish distribution. The findings of this study emphasize the close trophic linkages between zooplankton and zooplanktivorous fishes under changing estuarine environmental conditions, particularly river flow and provide important baseline information for similar studies elsewhere in South Africa and the rest of the world.
    Matched MeSH terms: South Africa
  4. Fulltext A pinworm's tale: The evolutionary history of Lemuricola (Protenterobius) nycticebi
    Frias L, Hasegawa H, Stark DJ, Lynn MS, Nathan SK, Chua TH, et al.
    Int J Parasitol Parasites Wildl, 2019 Apr;8:25-32.
    PMID: 30619706 DOI: 10.1016/j.ijppaw.2018.11.009
    Lemuricola (Protenterobius) nycticebi is the only pinworm species known to infect strepsirrhine primates outside Africa, and the only pinworm species yet described in slow lorises. Here, we provided a detailed morphological comparison of female and male worms, and a first description of fourth-stage larvae collected from free-living slow lorises (Nycticebus menagensis) in Sabah, Malaysian Borneo. Using mitochondrial and nuclear markers, we also reconstructed the species' phylogenetic relationship with other pinworms infecting primates. Both morphological and molecular results indicated a distinct association between L. (P.) nycticebi and its host. However, while taxonomy identified this species as a member of the Lemuricola clade and grouped pinworms infecting lemurs and slow lorises together, phylogenetic reconstruction split them, placing L. (P.) nycticebi within the Enterobius clade. Our results suggest that L. (P.) nycticebi may represent a different taxon altogether, and that it is more closely related to pinworm species infecting Old World primates outside Madagascar. Pongobius pongoi (Foitová et al., 2008) n. comb. is also proposed.
    Matched MeSH terms: Africa
  5. Fulltext Combating insolvency and business recovery problems in the oil industry: proposal for improvement in Nigeria's insolvency and bankruptcy legal framework
    Olujobi OJ
    Heliyon, 2021 Feb;7(2):e06123.
    PMID: 33659729 DOI: 10.1016/j.heliyon.2021.e06123
    Insolvency and business recovery laws in Nigeria have not evolved to incorporate reorganisation, reforming insolvent oil firms' operations to boost commercial oil firms' steadiness and economic suitability like other moderately developed countries. In Nigeria, liquidation is understood by many as the panacea to indebtedness. The research evaluates the Nigerian insolvency and business recovery legal regime to sustain indebted oil firms from economic shocks due to the global decline in the oil price to avert imminent business failures due to insufficient cash flows. The aim is to fill the gaps in Nigeria's insolvency and business recovery laws by recommending a model for the sustenance of oil firms and to suggest the reform of the gaps identified in the existing laws and the extant literature on the subject. The paper opted for conceptual legal review, comparative legal and policies analyses of solvency and business recovery legislations in Nigeria, Malaysia, India, South Africa, the United Kingdom and the United States. These nations were designated for this study because their insolvency and business recovery legal regime are business rescued driven, not winding up centred. The study is library research-based to address some of the flaws in Nigeria's insolvency and business recovery laws. The study finds that Nigerian legislation on insolvency is flawed in oil firms' salvage, improvement and rearrangement. It ends that, statutory bodies in the designated case study nations are efficient than those in Nigeria due to the strong political will of their governments in supporting insolvent oil firms for successful financial recovery, to safeguard jobs, to protect creditors and to enhance the wealth of their nations through sound business recovery policies and laws. The study, advocates, remodel of Nigeria's insolvency and business recovery legislations and policies in compliance with the international standards on insolvent oil firms salvaged and creditors focused policies for a robust economy. The study concludes with the recommendation for further study to consider quantitative analysis research methodology to project further scholarship on the subject.
    Matched MeSH terms: South Africa
  6. Fulltext Evolution of Nipah Virus Infection: Past, Present, and Future Considerations
    Hauser N, Gushiken AC, Narayanan S, Kottilil S, Chua JV
    Trop Med Infect Dis, 2021 Feb 14;6(1).
    PMID: 33672796 DOI: 10.3390/tropicalmed6010024
    Nipah virus (NiV) is a zoonotic paramyxovirus of the Henipavirus genus first identified in Malaysia in 1998. Henipaviruses have bat reservoir hosts and have been isolated from fruit bats found across Oceania, Asia, and Africa. Bat-to-human transmission is thought to be the primary mode of human NiV infection, although multiple intermediate hosts are described. Human infections with NiV were originally described as a syndrome of fever and rapid neurological decline following contact with swine. More recent outbreaks describe a syndrome with prominent respiratory symptoms and human-to-human transmission. Nearly annual outbreaks have been described since 1998 with case fatality rates reaching greater than 90%. The ubiquitous nature of the reservoir host, increasing deforestation, multiple mode of transmission, high case fatality rate, and lack of effective therapy or vaccines make NiV's pandemic potential increasingly significant. Here we review the epidemiology and microbiology of NiV as well as the therapeutic agents and vaccines in development.
    Matched MeSH terms: Africa
  7. Fulltext Molecular Systematics of the Firefly Genus Luciola (Coleoptera: Lampyridae: Luciolinae) with the Description of a New Species from Singapore
    Jusoh WFA, Ballantyne L, Chan SH, Wong TW, Yeo D, Nada B, et al.
    Animals (Basel), 2021 Mar 04;11(3).
    PMID: 33806564 DOI: 10.3390/ani11030687
    The firefly genus Luciola sensu McDermott contains 282 species that are distributed across major parts of Asia, Europe, Africa, Australia, and the Pacific islands. Due to phenotypic similarities, species identification using external morphological characters can be unreliable for this group. Consequently, decades of piecemeal taxonomic treatments have resulted in numerous erroneous and contentious classifications. Furthermore, our understanding of the group's evolutionary history is limited due to the lack of a robust phylogenetic framework that has also impeded efforts to stabilize its taxonomy. Here, we constructed molecular phylogenies of Luciola and its allies based on combined mitogenomes and Cytochrome c oxidase subunit 1 (COX1) sequences including a newly sequenced mitogenome of an unidentified taxon from Singapore. Our results showed that this taxon represents a distinct and hitherto undescribed evolutionary lineage that forms a clade with L. filiformis from Japan and L. curtithorax from China. Additionally, the Singaporean lineage can be differentiated from other congeners through several external and internal diagnostic morphological characters, and is thus described herein as a new species. Our phylogeny also strongly supported the paraphyly of Luciola with regard to L. cruciata and L. owadai, which were inferred to be more closely related to the genus Aquatica as opposed to other members of Luciola sensu stricto. The genus Hotaria was inferred as a derived clade within Luciola (sister to L. italica), supporting its status as a subgenus of Luciola instead of a distinct genus. This is the first time since 1909 that a new species of luminous firefly has been discovered in Singapore, highlighting the need for continued biodiversity research, even in small, well-studied and highly developed countries, such as Singapore.
    Matched MeSH terms: Africa
  8. An analysis of the development assistance for health (DAH) allocations for STD control in Africa
    Furuoka F, Hoque MZ, Jacob RI, Ziegenhain P
    Health Econ Policy Law, 2020 Oct;15(4):458-476.
    PMID: 30968812 DOI: 10.1017/S1744133119000197
    The Sustainable Development Goals set by the United Nations recognize the importance of making progress in the eradication and treatment of sexually transmitted deceases (STD). STD are among the most widespread diseases in the world and have the highest prevalence in Sub-Saharan Africa. The current study explored the associations between the allocation of the development assistance for health (DAH) in 54 African countries and key development indicators - STD incidence, Gross Domestic Product per capita, health expenditure, and life expectancy at birth. It employed descriptive statistical methods, the matrix scatter plot analysis and the Pearson correlation test for this purpose. The findings indicated that there was a considerable increase in the volume of the DAH given to control and prevent STD in Africa over the period of 2002-2011. A statistically significant positive association was detected between the STD incidence and the health aid allocations. At the same time, the imbalance in the distribution of the health aid between the major and minor aid recipients in the continent increased. The study concludes by discussing policy implications that can be drawn from these findings.
    Matched MeSH terms: Africa South of the Sahara
  9. Molecular phylogeny and ancestral biogeographic reconstruction of Platanthera subgenus Limnorchis (Orchidaceae) using target capture methods
    Wettewa E, Wallace LE
    Mol Phylogenet Evol, 2021 04;157:107070.
    PMID: 33421614 DOI: 10.1016/j.ympev.2021.107070
    Platanthera is one of the largest genera of temperate orchids in the Holarctic and exemplifies a lineage that has adaptively radiated into diverse habitats within North America, Asia, Europe, North Africa, Borneo, and Sarawak. Major centers of diversity in this genus are North America and eastern Asia. Despite its diversity, a thorough phylogenetic hypothesis for the genus is lacking because no studies have yet sampled taxa exhaustively or developed a robust molecular toolkit. While there is strong evidence that suggests monophyly of subgenus Limnorchis, most taxa in this group have not been included in a phylogenetic analysis. In this study, we developed a new toolkit for Platanthera consisting of genomic information from 617 low-copy nuclear loci. Using a targeted enrichment approach, we collected high-throughput sequence data in 23 accessions of nine of the 12 diploid species of subgenus Limnorchis and outgroup species across Platanthera. A maximum likelihood analysis resolved a strongly supported monophyletic clade for subgenus Limnorchis. Ancestral biogeographic reconstruction indicated that subgenus Limnorchis originated in western North America ca. 3-4.5 Mya from an ancestor that was widespread in western North America and eastern Asia and subsequently diversified in western North America, followed by dispersal of some species to eastern North America. Our results indicate complex biogeographic connections between Asia and North America, and therefore it suggests that Platanthera is a suitable system to test biogeographic hypotheses over time and space in the Holarctic. Our results are also expected to facilitate further study of diversification and biogeographic spread across Platanthera and lay the groundwork for understanding independent origins, biogeography, and morphological diversification of polyploid species within subgenus Limnorchis.
    Matched MeSH terms: Africa, Northern
  10. First Report of Fusarium Wilt Caused by Fusarium oxysporum f. sp. passiflorae on Passion Fruit in North America
    Rooney-Latham S, Blomquist CL, Scheck HJ
    Plant Dis, 2011 Nov;95(11):1478.
    PMID: 30731749 DOI: 10.1094/PDIS-03-11-0261
    Passiflora edulis Sims f. edulis, known as purple passion fruit, is a woody, perennial vine that is grown for its attractive two-part flower and its purple, edible fruit (4). In November 2009, passion fruit vines were collected during a regulatory nursery inspection in Santa Barbara County and submitted to the California Department of Food and Agriculture Plant Pest Diagnostics Laboratory. Nearly 100% of the plants inspected, all of which were approximately 1.25 m tall, appeared stunted, defoliated, and severely wilted. Dark brown vascular discoloration was present in the roots and lower stems of the plants. A pinkish violet Fusarium oxysporum colony containing chlamydospores, multiseptate macroconidia, and microconidia formed on monophialidic conidiophores was consistently isolated from roots and stems onto half-strength acidified potato dextrose agar (aPDA). All further experiments were done with an isolate obtained from a single conidium. A portion of the translation elongation factor gene (TEF-1α) was amplified and sequenced with primers ef1 and ef2 from our isolate (GenBank No. JF332039) (3). BLAST analysis of the 615-bp amplicon with the FUSARIUM-ID database showed 99% similarity with a F. oxysporum passion fruit isolate from Australia (NRRL 38273) (3). To confirm pathogenicity, washed roots of four-leaf stage seedlings approximately 10 cm tall were submerged in a conidial spore suspension (106 spores/ml) for 15 min. The conidial suspension was prepared by flooding 10-day-old cultures grown on aPDA medium with sterile distilled water. Seven seedlings were inoculated and planted in 10-cm2 pots and kept in a 25°C growth chamber with a 12-h photoperiod. Seven seedlings were mock inoculated with sterile water. After 3 weeks, four of the seven inoculated plants had leaves with yellow veins and discolored roots and had partially defoliated. Two of the four symptomatic plants also had brown stem cankers. F. oxysporum grew from the isolated roots and stems of all the inoculated plants. F. oxysporum did not grow from root and stem pieces from the water-dipped plants and the plants remained asymptomatic. Inoculations were repeated on plants approximately 15 cm tall with F. oxysporum growing from roots and stem pieces of all inoculated plants. Symptoms of yellow veins and root necrosis were not observed until 4 weeks after inoculation. Fusarium wilt caused by F. oxysporum f. sp. passiflorae is a significant disease of P. edulis f. edulis in Australia. The disease has also been reported in South Africa, Malaysia, Brazil, Panama, and Venezuela; but it is unclear as to whether the symptoms were caused by Fusarium wilt or Haematonectria canker (1). Banana poka (P. mollissima), P. ligularis, and P. foetida are also susceptible hosts (2). To our knowledge, this is the first report of Fusarium wilt caused by F. oxysporum f. sp. passiflorae on passion fruit in North America. Passion fruit is not commercially produced for consumption in California so the economic importance of this disease appears to be limited to nursery production and ornamental landscapes. The grower of the California nursery stated that the infected passion fruit plants had been propagated on site from seed. The source of inoculum at this nursery remains unknown. References: (1) I. H. Fischer and J. A. M. Rezende. Pest Tech. 2:1, 2008 (2) D. E. Garder. Plant. Dis. 73:476, 1989. (3) D. M. Geiser et al. Eur. J. Plant Pathol. 110:473, 2004. (4) F. W. Martin et al. Econ. Bot. 24:333, 1970.
    Matched MeSH terms: South Africa
  11. Fulltext The global distribution of permanent canine hypodontia: A systematic review
    Sivarajan S, Mani SA, John J, Fayed MMS, Kook YA, Wey MC
    Korean J Orthod, 2021 Jan 25;51(1):55-74.
    PMID: 33446621 DOI: 10.4041/kjod.2021.51.1.55
    Objective: To systematically review studies on canine agenesis prevalence in different populations and continents, based on the jaw, sex, location, and associated dental anomalies.

    Methods: Electronic and hand searches of English literature in PubMed, Web of Science, Scopus, OpenGrey, and Science Direct were conducted, and the authors were contacted when necessary. Observational studies (population-based, hospital/clinic-based, and cross-sectional) were included. For study appraisal and synthesis, duplicate selection was performed independently by two reviewers. Study quality was assessed using a modified Strengthening the Reporting of Observational Studies in Epidemiology checklist, with main outcome of prevalence of canine agenesis.

    Results: The global population prevalence of canine agenesis was 0.30% (0.0-4.7%), highest in Asia (0.54%), followed by Africa (0.33%), and the least in Europe and South America (0.19% in both continents). Canine agenesis was more common in the maxilla (88.57%), followed by both maxilla and mandible (8.57%), and the least common was mandible-only presentation (2.86%). The condition was more common in females (female:male ratio = 1.23), except in Asia (female:male ratio = 0.88) and Africa (female:male ratio = 1). In Asia, unilateral agenesis was almost twice as prevalent as bilateral, but in Europe, the bilateral form was more common.

    Conclusions: The overall prevalence of canine agenesis is 0.30%, with the highest prevalence in Asia, followed by Africa, Europe, and South America. The condition is more common in the maxilla than the mandible, and in females than males (except in Asia and Africa), with unilateral agenesis being more common in Asia and the bilateral form showing a greater prevalence in Europe.

    Matched MeSH terms: Africa
  12. Fulltext Management responsibilities among dietitians: what is the level of job satisfaction and skills involved? a scoping review
    Roszanadia Rusali, Rosita Jamaluddin, Nor Baizura Md Yusop, Hazrina Ghazali
    Malaysian Journal of Medicine and Health Sciences, 2020;16(106):205-212.
    MyJurnal
    The role of dietitians involves not solely on clinical responsibilities. Additionally, operation management responsibil- ities such as managing human labor, financial resources, and problem solver are the tasks that a dietitian look after. It is reported to be challenging and stressful and could affect job satisfaction levels in the working environment. This scoping review aimed to explore the job satisfaction level and skills needed among dietitians to assume management responsibilities at their workplace. This study was completed using PRISMA guidelines. Online databases (Scopus and Science Direct) were used to identify papers published from 2000 to 2019. We selected English publications from the United States, Australia, South Africa, Korea, and the United Kingdom that used job satisfaction as a pri- mary or secondary outcome. Studies were included if they addressed dietitians who were involved in clinical work, food service, and management in their dietetic practices. Findings on existing skills, including managerial skills, communication, teamwork, and time management among dietitians with management responsibilities, have helped to enhance the job satisfaction and work quality of the dietetic profession. The findings would be useful for human resource management in the organisation, preserving the professional identity of a dietitian.
    Matched MeSH terms: South Africa
  13. Healthcare professionals' experiences of delivering sexual and reproductive health services to adolescents: A literature review
    Hamid SHA, Fallon D, Callery P
    Enferm Clin, 2021 04;31 Suppl 2:S366-S371.
    PMID: 33849201 DOI: 10.1016/j.enfcli.2020.12.040
    This literature review was conducted systematically to identify the gap in knowledge and practice related to the provision of sexual health to adolescents worldwide. The search was limited to peer-reviewed articles published between 2002 and 2018. Thirty-two relevant articles were identified and reviewed for quality assessment by using the Hawker critical appraisal tool. The studies were conducted in Africa, Europe, Asia, Oceania, and the United States of America (USA). The review findings suggested that potential tensions exist between the desire to prevent unwanted pregnancies and the provision of adolescent-friendly sexual health services in societies which disapprove of adolescents' premarital sexual activity, contraception use and abortion services. Healthcare professionals should be aware of comprehensive sexual and reproductive health services as their professional responsibility and the need to manage their own conflicts with regard to fulfilling their role.
    Matched MeSH terms: Africa
  14. Cannabinoid CB1 receptor binding and acetylcholinesterase inhibitory activity of Sceletium tortuosum L.
    Lubbe, A., Khatib, A., Yuliana, N.D., Jinap, S., Verpoorte, R.
    International Food Research Journal, 2010;17(2):349-355.
    MyJurnal
    The whole plant extract of plant Sceletium tortuosum, plant native to South Africa, has been known
    traditionally to have mood enhancing and stimulant properties. These properties have been confirmed before by proving serotonin-uptake inhibition activity. A further confirmation by using CB1 receptor binding assay has been performed in this study. The unfermented alkaloid extract was proved to posses a higher activity to bind CB1 receptor compared to that of the fermented one. GC-MS analysis confirmed that unfermented alkoloid extract contain more alkaloids than the fermented one. The ethanol extract was also more active than the fermented one, suggesting that non-alkaloid compounds in this extract could posses this activity. An additional test to check wether this extract can improve cognitive function and memory was performed by acetylcholinesterase inhibitory assay. Both fermented and unfermented alkaloid extracts could inhibit acetylcholinesterase with IC50 being 0.303 mg/ml and 0.330 mg/ml, respectively. However, the major alkaloid in the extract, mesembrine, did not show inhibition of the enzyme. A TLC based test proved that other alkaloids in the extract were responsible to the activity.
    Matched MeSH terms: South Africa
  15. Fulltext A Cross-Species Gene Expression Marker-Based Genetic Map and QTL Analysis in Bambara Groundnut
    Chai HH, Ho WK, Graham N, May S, Massawe F, Mayes S
    Genes (Basel), 2017 Feb 22;8(2).
    PMID: 28241413 DOI: 10.3390/genes8020084
    Bambara groundnut (Vigna subterranea (L.) Verdc.) is an underutilised legume crop, which has long been recognised as a protein-rich and drought-tolerant crop, used extensively in Sub-Saharan Africa. The aim of the study was to identify quantitative trait loci (QTL) involved in agronomic and drought-related traits using an expression marker-based genetic map based on major crop resources developed in soybean. The gene expression markers (GEMs) were generated at the (unmasked) probe-pair level after cross-hybridisation of bambara groundnut leaf RNA to the Affymetrix Soybean Genome GeneChip. A total of 753 markers grouped at an LOD (Logarithm of odds) of three, with 527 markers mapped into linkage groups. From this initial map, a spaced expression marker-based genetic map consisting of 13 linkage groups containing 218 GEMs, spanning 982.7 cM (centimorgan) of the bambara groundnut genome, was developed. Of the QTL detected, 46% were detected in both control and drought treatment populations, suggesting that they are the result of intrinsic trait differences between the parental lines used to construct the cross, with 31% detected in only one of the conditions. The present GEM map in bambara groundnut provides one technically feasible route for the translation of information and resources from major and model plant species to underutilised and resource-poor crops.
    Matched MeSH terms: Africa South of the Sahara
  16. Wood fuel consumption and mortality rates in Sub-Saharan Africa: Evidence from a dynamic panel study
    Sulaiman C, Abdul-Rahim AS, Chin L, Mohd-Shahwahid HO
    Chemosphere, 2017 Mar 06;177:224-231.
    PMID: 28292722 DOI: 10.1016/j.chemosphere.2017.03.019
    This study examined the impact of wood fuel consumption on health outcomes, specifically under-five and adult mortality in Sub-Saharan Africa, where wood usage for cooking and heating is on the increase. Generalized method of moment (GMM) estimators were used to estimate the impact of wood fuel consumption on under-five and adult mortality (and also male and female mortality) in the region. The findings revealed that wood fuel consumption had significant positive impact on under-five and adult mortality. It suggests that over the studied period, an increase in wood fuel consumption has increased the mortality of under-five and adult. Importantly, it indicated that the magnitude of the effect of wood fuel consumption was more on the under-five than the adults. Similarly, assessing the effect on a gender basis, it was revealed that the effect was more on female than male adults. This finding suggests that the resultant mortality from wood smoke related infections is more on under-five children than adults, and also are more on female adults than male adults. We, therefore, recommended that an alternative affordable, clean energy source for cooking and heating should be provided to reduce the wood fuel consumption.
    Matched MeSH terms: Africa South of the Sahara
  17. Fulltext Selenium and hepatocellular carcinoma
    Nasar Alwahaibi, Jamaludin Mohamed
    Jurnal Sains Kesihatan Malaysia, 2008;6(2):1-14.
    MyJurnal
    While cancer is considered to be one of the leading causes of death worldwide, there is a growing scientific and public interests on selenium as a dietary and antioxidant of many diseases, in particular, cancer. Despite advanced technology and significant improvement of surgical, chemical, hormonal and radio therapies, hepatocellular carcinoma (HCC) is still common in Asia and Africa and is increasing in the developed countries. Prognosis of HCC at an early stage is still challenging. At the moment, combination of Alpha feto protein (AFP) and ultrasonography tests offers more accurate and sensitive results for the diagnosis of HCC. Selenium (also known as the moon element) has been recognized for almost 49 years as an antioxidant and anti cancer agent. The weight of evidence supports the position of selenium as an anti cancer agent for HCC but the molecular mechanism of how selenium inhibits HCC is still unknown. Numerous theories have been proposed and selenium induced apoptosis and cell cycle arrest is the predominant one so far.
    Matched MeSH terms: Africa
  18. Fulltext Development of genetic markers for termitomyces identification
    Tan, Chon Seng, Wee, Chien Yeong, Lau, Han Yi Kelly
    Buletin Persatuan Genetik Malaysia, 2009;14(1):18-19.
    MyJurnal
    Termitomyces are delicious edible mushrooms found in Africa and South-East Asia including Malaysia. These mushrooms were found to grow symbiotically with termites around termite nests. Numerous efforts have been made worldwide to develop a cultivation method for these mushrooms. Unfortunately, none of those attempts were successful. The main obstacles encountered were the difficulty to identify and isolate pure termitomyces culture. The problem became prevalent as the culture gets contaminated by other fungi. Termitomyces can easily be identified by its mushroom fruiting body eventually but certainly not at the mycelium and hyphea stages. In this study a simple PCR-based genetic marker detection method for confirmation of termitomyces at any culture stage was developed. Using this method, four distinctive PCR assays
    were developed using specific PCR primers designed based on the DNA sequence of the termitomyces mushroom. The PCR results showed that the PCR assays using intact termitomyces
    DNA as template was not suitable for this purpose. However, PCR using BamHI and EcoRI predigested termitomyces DNA as template showed identical polymorphism pattern for both
    termitomyces mushroom DNA and termitomyces culture DNA. Thus, the method reported here can be used for the identific.
    Matched MeSH terms: Africa
  19. Roselle: a new crop in Malaysia
    Mohamad, O., Mohd. Nazir, B., Abdul Rahman, M., Herman, S.
    Buletin Persatuan Genetik Malaysia, 2002;8(1):0-0.
    MyJurnal
    Roselle (Hibiscus sabdariffa L.) from Malvaceae family is an annual crop with potential for use by many industries including food, animal feed, neutraceutical, cosmeticeutical and pharmaceutical industries. Its origin is not fully known but it is believed to be from West Africa, although the plant is found native from India to Southeast Asia. The calyxes, stems and leaves are acid in flavour. The juice is produced from the calyces, and it is claimed to be a prohealth drink due to its high contents of ascorbic acid, anthocyanins and other antioxidants.
    Matched MeSH terms: Africa, Western
  20. Fulltext Role of oil palm breeding in wealth creation and quality of life
    Ahmad Kushairi
    Buletin Persatuan Genetik Malaysia, 2010;16(1):6-9.
    MyJurnal
    Quality of planting materials determines future successes of plantations and subsequent endeavours in the life cycle. Oil palm (Elaeis guineensis) breeding triggered an industry in Malaysia through “Plant Introduction” with the establishment of the first oil palm plantation. At the wake of the oil palm industry, plantations utilised the dura planting material. The hallmark discovery of the single gene inheritance for shell thickness led to the prolific dura x pisifera (DxP) derived tenera planting material. Subsequent parental inbred lines developed in recurrent selections, crossed and progeny tested exploiting heterosis had boosted yields. Further improvements were foresighted and executed in the widening of the genetic pool and collections of germplasm in centres of origin/diversity in Africa and Latin America. Field Genebank of the Malaysian Palm Oil Board (MPOB) forms the world’s largest ex situ oil palm conservation programme. This programme enabled the developments of elite breeding populations harbouring specialty oils and products. Meanwhile, opening of large oil palm areas by the Federal Land Development Authority (Felda) set the momentum in rapid expansion of the industry. Felda is an exemplary in wealth creation and quality of life (QOL). Resettlements of landless farmers into Felda schemes, employing modern farming, mainly in oil palm has helped eradicate poverty and uplifting QOL among settlers, employees and their families. Impacts of the success in wealth creation and its distribution leading to better QOL, rooted from breeding through the supply of quality planting materials. Phenotypic expressions of the planting materials were realised through genotypic and environment interactions; the former through breeding, the latter through agronomic practices. Efforts in oil palm breeding helped paved the way to a mammoth industry, contributing to the nation economic growths, impacting livelihood of the people. Further progress in yield is expected from clones, where breeding has a role in the supply of quality ortets. Genetic potential of planting materials can be further exploited through interdisciplinary approach in breeding, biotechnology and genomics. With continuing wealth creation, the oil palm saga continues. Once wealth is created, QOL will follow.
    Matched MeSH terms: Africa
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