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Hamid SBA, Denil NM, Ismail NA, Mauludyani AVR. Stunting and food insecurity among children from low socioeconomic family during COVID-19 pandemic in urban area in Selangor. Med J Malaysia 2024; 79:53-58. [PMID: 38555886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/02/2024]
Abstract
INTRODUCTION Food insecurity is often link with nutritional status. An increased rate of food insecurity can have a severe impact on children's growth. During the COVID-19 outbreak, little is known regarding its effect on food security and nutritional status, especially concerning vulnerable groups such as children. The purpose of this study was to assess household food security status, children's nutritional status along with their association, and the determinants of food insecurity during the COVID-19 pandemic. MATERIALS AND METHODS This cross-sectional study was conducted from May to July 2022 in urban areas in Selangor among children aged less than two years old from B40 households using purposive sampling through both online surveys and face-to-face interviews. There were 112 children aged < 2 years old from B40 households participating in this study. The data obtained on maternal sociodemographic, Household Food Insecurity Scale (HFIAS), and children's anthropometric measurements were analysed by using the WHO Anthro Survey, descriptive analysis, Person's Chisquare test and Fischer's exact test. RESULTS The prevalence of food insecurity was more significant than the prevalence of food secured, at 55.4% and 44.6% respectively. The stunting among the children rated at 34.8%, followed by 7.2% of the sample found underweight, 7.8% (BAZ) and 16.1% (BAZ) of them were wasted, and overweight & obese, proportionately. This study discovered that household size was the sole determinant of household food security status. This finding suggested that size of a household influenced the odds of a household being food insecure. CONCLUSION The findings of this study provide insights into how the COVID-19 pandemic have an impact on children's nutritional status especially those from low-income and bigger size households. Therefore, more thorough and effective interventions should be designed particularly targeting this urban poor community to enhance their nutritional status and health.
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Affiliation(s)
- S B A Hamid
- Universiti Teknologi MARA, Faculty of Health Sciences, Mother, Infant and Young Child Nutrition (MiChild) Research Group, Puncak Alam Campus, Selangor, Malaysia.
| | - N M Denil
- Universiti Teknologi MARA, Faculty of Health Sciences, Centre of Dietetics Studies, Puncak Alam Campus, Selangor, Malaysia
| | - N A Ismail
- Universiti Teknologi MARA, Faculty of Health Sciences, Centre of Dietetics Studies, Puncak Alam Campus, Selangor, Malaysia
| | - A V R Mauludyani
- Bogor Agricultural University, Department of Community Nutrition, Bogor-Jawa Barat, Indonesia
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Pau CP, Ismail NA, Aimie R, Sanusi AR, Yakub MA, Ezani MTM, Yunus A. Post-cardiac surgery outcomes following COVID-19 infection in unvaccinated patients. Med J Malaysia 2022; 77:371-373. [PMID: 35638494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The provision of cardiac surgery services nationwide has been affected by the COVID-19 pandemic. We noticed a high COVID-19 mortality rate in unvaccinated patients who were diagnosed with COVID-19 after recent cardiac surgery. All the patients were tested negative for COVID-19 before surgery. We conducted a review of our hospital data and reported our findings. We identified 15 patients and reported 7 deaths (46.7%). All the patients died from COVID-19 or its complications. We recommend that cardiac centres actively promote vaccination before cardiac surgery and also enhance infection control measures to prevent nosocomial infections.
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Affiliation(s)
- C P Pau
- Institut Jantung Negara, Kuala Lumpur, Malaysia.
| | - N A Ismail
- Institut Jantung Negara, Kuala Lumpur, Malaysia
| | - R Aimie
- Institut Jantung Negara, Kuala Lumpur, Malaysia
| | - A R Sanusi
- Institut Jantung Negara, Kuala Lumpur, Malaysia
| | - M A Yakub
- Institut Jantung Negara, Kuala Lumpur, Malaysia
| | - M T M Ezani
- Institut Jantung Negara, Kuala Lumpur, Malaysia
| | - A Yunus
- Institut Jantung Negara, Kuala Lumpur, Malaysia
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Kamal Rodin NS, Ismail NA, Abdul Wahid SF, Jamil A, Syed Zakaria SZ, Syed Abd Kadir SS, Lee BR, Bakrin IH, Wan Jamaludin WF. Epidemiology and clinical profiles of cutaneous graft versus host disease in allogeneic peripheral blood stem cell transplantation. Malays J Pathol 2021; 43:361-373. [PMID: 34958057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
INTRODUCTION The epidemiology of cutaneous graft versus host disease (GVHD) in allogeneic peripheral blood stem cell transplantation (PBSCT) in Malaysia has not been described. MATERIALS AND METHODS We retrospectively analysed 691 allogeneic PBSCT patients between 2010-2017 in two centers. RESULTS The prevalence of cutaneous GVHD was 31.4% (217/691). No associations were detected with race, age or gender of donor and recipients. Cutaneous GVHD was associated with host cytomegalovirus (CMV) seropositivity (p<0.01), conditioning (p<0.01), GVHD prophylaxis (p=0.046) and survival (p<0.01). Majority developed the acute form (58.1%;126/217). Biopsies in 20.7% (45/217) showed 55.6% positivity for GVHD. Overall, involvement was non-severe. A majority demonstrated complete response (CR) to first-line corticosteroids (70.0%;152/217). Secondline therapies (extracorporeal phototherapy (ECP), psolaren ultraviolet A (PUVA), mycophenolate, tumour necrosis factor (TNF) inhibitors, interleukins inhibitors, or CD20 monoclonal antibodies) were required in 65/217, with 38.5% CR. Second-line therapy was associated with gender (p=0.042), extra-cutaneous GVHD (p=0.021), treatment outcomes (p=0.026) and survival (p=0.048). Mortality in cutaneous GVHD was 24.0% with severe sepsis being the leading cause at Day 100 (7.8%) and 5-years (7.8%), and relapsed disease at 2-years (32.7%). In steroid refractoriness, severe GVHD caused 30.8% mortality. In cutaneous GVHD, survival at Day 100 was 95.4%; 80.2% at 2-years and 73.1% at 5-years. The median survival in cutaneous GVHD was significantly shorter at 55 months, compared to those without GVHD at 69 months (p=0.001). CONCLUSION Cutaneous involvement is the commonest clinical manifestation of GVHD. A larger national study is warranted to further analyse severity and outcome of multiorgan GVHD, and factors associated with steroid refractoriness.
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Affiliation(s)
- N S Kamal Rodin
- Universiti Kebangsaan Malaysia Medical Centre, Department of Medicine, Kuala Lumpur, Malaysia
| | - N A Ismail
- Universiti Kebangsaan Malaysia Medical Centre, Cell Therapy Centre, Kuala Lumpur, Malaysia
| | - S F Abdul Wahid
- Universiti Kebangsaan Malaysia Medical Centre, Cell Therapy Centre, Kuala Lumpur, Malaysia
| | - A Jamil
- Universiti Kebangsaan Malaysia Medical Centre, Department of Medicine, Kuala Lumpur, Malaysia
| | - S Z Syed Zakaria
- Universiti Kebangsaan Malaysia Medical Centre, Department of Pediatric & Community Health, Kuala Lumpur, Malaysia
| | - S S Syed Abd Kadir
- Hospital Ampang, Department of Hematology, 68000 Ampang, Selangor, Malaysia
| | - B R Lee
- Hospital Gleneagles, Department of Dermatopathology, 50450 Kuala Lumpur, Malaysia
| | - I H Bakrin
- Universiti Putra Malaysia, Faculty of Medicine and Health Sciences, Department of Pathology
| | - W F Wan Jamaludin
- Universiti Kebangsaan Malaysia Medical Centre, Cell Therapy Centre, Kuala Lumpur, Malaysia.
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Ranneh Y, Abu Bakar MF, Ismail NA, Kormin F, Mohamed M, Md Akim A, Isha A. Anti-aging and antioxidant of four traditional malaysian plants using simplex centroid mixture design approach. Saudi J Biol Sci 2021; 28:6711-6720. [PMID: 34866970 PMCID: PMC8626306 DOI: 10.1016/j.sjbs.2021.07.048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 07/11/2021] [Accepted: 07/14/2021] [Indexed: 10/30/2022] Open
Abstract
Aging is a naturally biological process with adverse effects. The continuous accumulation of reactive oxygen species (ROS) trigger cellular and tissue damage by activating several aging enzymes. The antioxidant properties of traditional medicinal plants used by Jakun aborigine's community are a promising approach to alleviate aging process and prevent Alzheimer. The aim of the current investigation was to optimize a novel anti-aging formulation from traditional plants (Cnestis palala stem, Urceola micrantha stem, Marantodes pumilum stem and Microporus xanthopus fruiting bodies) using simplex centroid mixture design (SCMD). After selecting the optimal formulations based on desirability function of antioxidant activity (DPPḢ, ABTS ˙ + and FRAP), they were further examined against the activity of aging-related-enzymes (collagenase, tyrosinase, acetyl- and butyrylcholinesterase). The single extracts of C. palala, U. micrantha and the binary mixture of C. palala and U. micrantha were the optimal formulations with high antioxidant activities. Single extract of U. micrantha showed the highest inhibition towards matrix metalloproteinase-1 (49.44 ± 4.11 %), while C. palala water extract showed highest inhibitions towards tyrosinase (14.06 ± 0.31%), acetylcholinesterase (32.92 ± 2.13%) and butyrylcholinesterase (34.89 ± 2.84%) enzymes. The single extracts of C. palala and U. micrantha displayed better activity as compared to the binary mixture formulation. In conclusion, these findings could be a baseline for further exploration of novel anti-aging agents from natural resources.
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Affiliation(s)
- Yazan Ranneh
- Faculty of Applied Sciences and Technology, Universiti Tun Hussein Onn Malaysia (UTHM)- Pagoh Campus, KM 1, Jalan Panchor, 84600 Muar, Johor, Malaysia
| | - Mohd Fadzelly Abu Bakar
- Faculty of Applied Sciences and Technology, Universiti Tun Hussein Onn Malaysia (UTHM)- Pagoh Campus, KM 1, Jalan Panchor, 84600 Muar, Johor, Malaysia
| | - Nur Amalina Ismail
- Faculty of Applied Sciences and Technology, Universiti Tun Hussein Onn Malaysia (UTHM)- Pagoh Campus, KM 1, Jalan Panchor, 84600 Muar, Johor, Malaysia
| | - Faridah Kormin
- Faculty of Applied Sciences and Technology, Universiti Tun Hussein Onn Malaysia (UTHM)- Pagoh Campus, KM 1, Jalan Panchor, 84600 Muar, Johor, Malaysia
| | - Maryati Mohamed
- Faculty of Applied Sciences and Technology, Universiti Tun Hussein Onn Malaysia (UTHM)- Pagoh Campus, KM 1, Jalan Panchor, 84600 Muar, Johor, Malaysia
| | - Abdah Md Akim
- Faculty of Medicine and Health Science, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, Malaysia
| | - Azizul Isha
- Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, Malaysia
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Omar SV, Hillemann D, Pandey S, Merker M, Witt AK, Nadarajan D, Barilar I, Bainomugisa A, Kelly EC, Diel R, Vidanagama DS, Samarasinghe AIP, Cader MR, Götsch U, Lavu E, Alabi A, Schön T, Coulter C, Niemann S, Maurer FP, Ismail NA, Köser CU, Ismail F. Systematic rifampicin resistance errors with Xpert ® MTB/RIF Ultra: implications for regulation of genotypic assays. Int J Tuberc Lung Dis 2021; 24:1307-1311. [PMID: 33317678 DOI: 10.5588/ijtld.20.0396] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- S V Omar
- Centre for Tuberculosis, National Institute for Communicable Diseases, National Health Laboratory Service, Johannesburg, South Africa, Department of Molecular Medicine & Haematology, School of Pathology, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa
| | - D Hillemann
- National and WHO Supranational Reference Center for Mycobacteria, Research Center Borstel, Borstel, Germany
| | - S Pandey
- Queensland Mycobacterium Reference Laboratory, Pathology Queensland, Brisbane, QLD, Australia
| | - M Merker
- Molecular and Experimental Mycobacteriology, Priority Area Infections, Research Center Borstel, Borstel, Germany, German Center for Infection Research (DZIF), Partner site Hamburg-Lübeck-Borstel-Riems, Germany
| | - A-K Witt
- National and WHO Supranational Reference Center for Mycobacteria, Research Center Borstel, Borstel, Germany
| | - D Nadarajan
- National and WHO Supranational Reference Center for Mycobacteria, Research Center Borstel, Borstel, Germany
| | - I Barilar
- Queensland Mycobacterium Reference Laboratory, Pathology Queensland, Brisbane, QLD, Australia, Molecular and Experimental Mycobacteriology, Priority Area Infections, Research Center Borstel, Borstel, Germany
| | - A Bainomugisa
- Queensland Mycobacterium Reference Laboratory, Pathology Queensland, Brisbane, QLD, Australia
| | - E C Kelly
- Department of Genetics, University of Cambridge, Cambridge, UK
| | - R Diel
- Institute for Epidemiology, University Hospital Schleswig-Holstein, Campus Kiel, Germany
| | - D S Vidanagama
- National Tuberculosis Reference Laboratory, Welisara, Sri Lanka
| | - A I P Samarasinghe
- National Programme for Tuberculosis Control & Chest Diseases, Colombo, Sri Lanka
| | - M R Cader
- National Programme for Tuberculosis Control & Chest Diseases, Colombo, Sri Lanka
| | - U Götsch
- Department of Infectious Diseases, Public Health Authority, City of Frankfurt am Main, Germany
| | - E Lavu
- Central Public Health Laboratory, Port Moresby, Papua New Guinea
| | - A Alabi
- TB Laboratory, Centre de Recherches Medicales de Lambarene, Lambarene, Gabon
| | - T Schön
- Department of Infectious Diseases and Clinical Microbiology, Kalmar County Hospital, Kalmar, Sweden, Division of Medical Microbiology, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - C Coulter
- Queensland Mycobacterium Reference Laboratory, Pathology Queensland, Brisbane, QLD, Australia
| | - S Niemann
- Molecular and Experimental Mycobacteriology, Priority Area Infections, Research Center Borstel, Borstel, Germany, German Center for Infection Research (DZIF), Partner site Hamburg-Lübeck-Borstel-Riems, Germany
| | - F P Maurer
- National and WHO Supranational Reference Center for Mycobacteria, Research Center Borstel, Borstel, Germany, Department of Medical Microbiology, Virology and Hospital Hygiene, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - N A Ismail
- Centre for Tuberculosis, National Institute for Communicable Diseases, National Health Laboratory Service, Johannesburg, South Africa, Department of Medical Microbiology, University of Pretoria, Pretoria, South Africa, Department of Internal Medicine, University of Witwatersrand, Johannesburg, South Africa
| | - C U Köser
- Department of Genetics, University of Cambridge, Cambridge, UK
| | - F Ismail
- Centre for Tuberculosis, National Institute for Communicable Diseases, National Health Laboratory Service, Johannesburg, South Africa, Department of Medical Microbiology, University of Pretoria, Pretoria, South Africa
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Ismail NA, Said HM, Rodrigues C, Omar SV, Ajbani K, Sukhadiad N, Kohl TA, Niemann S, Kranzer K, Diels M, Rigouts L, Rüsch-Gerdes S, Siddiqi S. Multicentre study to establish interpretive criteria for clofazimine drug susceptibility testing. Int J Tuberc Lung Dis 2020; 23:594-599. [PMID: 31097068 DOI: 10.5588/ijtld.18.0417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
<sec id="st1"> <title>OBJECTIVE</title> To conduct a multicentre study to establish the critical concentration (CC) for clofazimine (CFZ) for drug susceptibility testing (DST) of Mycobacterium tuberculosis on the MGIT™960™ system using the distribution of minimum inhibitory concentrations (MIC) and genotypic analyses of Rv0678 mutations. </sec> <sec id="st2"> <title>DESIGN</title> In phase I of the study, the MIC distribution of laboratory strains (H37Rv and in vitro-selected Rv0678 mutants) and clinical pan-susceptible isolates were determined (n = 70). In phase II, a tentative CC for CFZ (n = 55) was proposed. In phase III, the proposed CC was validated using clinical drug-resistant tuberculosis (DR-TB) isolates stratified by Rv0678 mutation (n = 85). </sec> <sec id="st3"> <title>RESULTS AND CONCLUSION</title> The MIC distribution of CFZ for laboratory and clinical pan-susceptible strains ranged between 0.125 μg/ml and 0.5 μg/ml. As the MIC values of DR-TB isolates used for phase II ranged between 0.25 μg/ml and 1 μg/ml, a CC of 1 μg/ml was proposed. Validation of the CC in phase III showed that probably susceptible and probably resistant Rv0678 mutants overlapped at 1 μg/ml. We therefore recommend a CC of 1 μg/ml, with additional testing at 0.5 μg/ml to define an intermediate category. This was the first comprehensive study to establish a CC for routine phenotypic DST of CFZ using the MGIT960 system to guide therapeutic decisions. </sec>.
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Affiliation(s)
- N A Ismail
- Centre for Tuberculosis, National Institute of Communicable Diseases, South Africa Division of National Health Laboratory Services, Johannesburg, Department of Medical Microbiology, University of Pretoria, Pretoria, Department of Internal Medicine, University of Witwatersrand, Johannesburg, South Africa
| | - H M Said
- Centre for Tuberculosis, National Institute of Communicable Diseases, South Africa Division of National Health Laboratory Services, Johannesburg
| | - C Rodrigues
- P D Hinduja National Hospital and Medical Centre, Mumbai
| | - S V Omar
- Centre for Tuberculosis, National Institute of Communicable Diseases, South Africa Division of National Health Laboratory Services, Johannesburg
| | - K Ajbani
- P D Hinduja National Hospital and Medical Centre, Mumbai
| | - N Sukhadiad
- Becton Dickinson India Pvt Ltd, Mumbai, India
| | - T A Kohl
- National Reference Centre for Mycobacteria, Forschungszentrum Borstel, Borstel, Germany
| | - S Niemann
- National Reference Centre for Mycobacteria, Forschungszentrum Borstel, Borstel, Germany
| | - K Kranzer
- National Reference Centre for Mycobacteria, Forschungszentrum Borstel, Borstel, Germany
| | - M Diels
- Mycobacteriology Unit, Department of Biomedical Sciences, Institute of Tropical Medicine, Antwerp
| | - L Rigouts
- Mycobacteriology Unit, Department of Biomedical Sciences, Institute of Tropical Medicine, Antwerp, Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
| | - S Rüsch-Gerdes
- National Reference Centre for Mycobacteria, Forschungszentrum Borstel, Borstel, Germany, Department of Medical Microbiology, University of Pretoria, Pretoria
| | - S Siddiqi
- Becton Dickinson and Company, Franklin, New Jersey, USA
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Ismail NA, Abu Bakar SN, Abdullah N, Shafie MS, Mohd Nor F. Stature estimation in the South-East Asian population: A systematic review. Malays J Pathol 2019; 41:83-89. [PMID: 31427544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
INTRODUCTION Stature estimation is population dependent, and population-specific regression equations should be generated for accurate anthropological assessments. Nevertheless, stature estimation data was inaccessible and limited in some of the South-East Asian countries. The systematic review was conducted to analyse the regression equations of stature estimations developed in South-East Asian region. MATERIALS AND METHODS A systematic literature search was performed through SCOPUS database and Google Scholar from January till March 2018. All published articles which developed stature estimation from different types of bone, methods and type of statures (i.e. living stature, forensic stature and cadaveric stature) were included in this study. Risks of biases were also assessed. Population studies with no regression equations were excluded from the study. RESULTS Seven studies that met the inclusion criteria were identified. In the South-East Asia region, regression equations for stature estimation were developed in Thailand and Malaysia. In these studies, bone measurements were done either by radiography, direct bone measurement, or palpation on body surface for anatomical bony prominence. All of these studies used various parts of bones for stature estimation. CONCLUSION The most widely used regression equations for stature estimation in South-East Asian population were from the Thailand population. Further research is recommended to develop regression equations for other South-East Asian countries.
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Affiliation(s)
- N A Ismail
- Universiti Islam Antarabangsa Sultan Abdul Halim Mu'adzam Shah, Kulliyyah of Medicine & Health Sciences, Kedah, Malaysia.
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Ismail NA, Ragab S, Abd El Dayem SM, Baky ANAE, Hamed M, Ahmed Kamel S, Adel El Halim D. Implication of CDKAL1 single-nucleotide polymorphism rs 9465871 in obese and non-obese Egyptian children. Med J Malaysia 2018; 73:286-290. [PMID: 30350806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
INTRODUCTION CDKAL1 single-nucleotide polymorphism rs 9465871variant is a risk locus for Type 2 Diabetes (T2DM).The study evaluated the associations of CDKAL1- rs9465871 with glycosylated hemoglobin A1C Level (HbA1c), fasting insulin level, insulin resistance and metabolic syndrome among obese and non- obese Egyptian children. MATERIALS AND METHODS The study included 43 obese children and 40 normal weight children. Anthropometric body measurements, bio-specimen and biochemistry assays were done. Genotyping of rs9465871 (CDKAL1) was conducted. RESULTS The percentages of the CC, CT, and TT genotypes of rs9465871in the lean children were 15%, 42.5%, and 42.5%, respectively. Regarding obese children, the frequencies were 18.6%, 58.1% and 23.3% respectively with no significant statistical difference. Comparison between the CDKAL1 rs 9465871 polymorphism showed that the highest value of fasting insulin was recorded in CC genotype (22.80± 15.18 [uIU/mL] P<.014). Levels of HOMA-IR, FBS and HBA1C were highest in CC group with no statistical significant differences. However, fasting insulin level was higher in the CC group than in the TT+ CT group (P<.01). A higher level of HbA1c was found among CC group at CDKAL1-rs9465871 (5.9%) than TT+CT genotype group (5.6%), with no statistical significant difference. There was increase in the risk of type 2 diabetes the percentages were 78.6% and 46.4% respectively when comparing CC with TT+CT genotype groups ( P<.039). CC group was not associated with significant increase in metabolic syndrome. CONCLUSION There is a significant risk association between CDKAL1-rs9465871polymorphism and development of T2DM in a subset of the Egyptian children.
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Affiliation(s)
- N A Ismail
- National Research Centre, Medical Division, Pediatric Department, Cairo, Egypt.
| | - S Ragab
- National Research Centre, Medical Division, Clinical & Chemical Pathology Department, Cairo, Egypt
| | - S M Abd El Dayem
- National Research Centre, Medical Division, Pediatric Department, Cairo, Egypt
| | - A N A E Baky
- National Research Centre, Medical Division, Pediatric Department, Cairo, Egypt
| | - M Hamed
- National Research Centre, Medical Division, Clinical & Chemical Pathology Department, Cairo, Egypt
| | - S Ahmed Kamel
- National Research Centre, Medical Division, Clinical & Chemical Pathology Department, Cairo, Egypt
| | - D Adel El Halim
- National Research Centre, Medical Division, Clinical & Chemical Pathology Department, Cairo, Egypt
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Ismail N, Omar SV, Ismail NA, Peters RPH. In vitro approaches for generation of Mycobacterium tuberculosis mutants resistant to bedaquiline, clofazimine or linezolid and identification of associated genetic variants. J Microbiol Methods 2018; 153:1-9. [PMID: 30165087 DOI: 10.1016/j.mimet.2018.08.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 08/21/2018] [Accepted: 08/21/2018] [Indexed: 11/19/2022]
Abstract
Bedaquiline, clofazimine and linezolid are pertinent drugs for drug-resistant tuberculosis. Drug-resistant mutants provide insight into important resistance acquisition mechanisms. Methods for in vitro Mycobacterium tuberculosis mutant generation are poorly described. Induction (serial passaging) and spontaneous (adapted Luria-Delbrück assay) approaches using M. tuberculosis ATCC reference strains (one fully-susceptible, four unique mono-resistant) were performed. Mutant MIC values were confirmed (MGIT960) and resultant RAVs compared between approaches and to a catalog of previously published RAVs. Mutant MIC values showed a 3-4-fold (induced) and a 1-4-fold (spontaneous) increase compared to baseline. The pyrazinamide-resistant strain had higher baseline MIC values and acquired resistance (≥4-fold) in fewer passages than other strains (induction approach) for bedaquiline. Previously described and novel RAVs in atpE (8 vs. 1) and rv0678 (4 vs. 12) genes were identified in bedaquiline- and clofazimine-resistant mutants. No rv1979c and rv2535c RAVs were identified. Previously described RAVs were identified in rplC and rrl genes for linezolid-resistant mutants. Both approaches successfully led to in vitro mutants with novel RAVs being described in atpE and rv0678 genes. It was observed that pre-existing resistance may influence mutant phenotypic and genotypic characteristics and warrants further attention.
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Affiliation(s)
- N Ismail
- Department of Medical Microbiology, Faculty of Health Sciences, University of Pretoria, 0002 Prinshof, Gauteng, South Africa
| | - S V Omar
- Centre for Tuberculosis, National Institute for Communicable Diseases, National Health Laboratory Service, Sandringham, Gauteng, South Africa
| | - N A Ismail
- Department of Medical Microbiology, Faculty of Health Sciences, University of Pretoria, 0002 Prinshof, Gauteng, South Africa; Centre for Tuberculosis, National Institute for Communicable Diseases, National Health Laboratory Service, Sandringham, Gauteng, South Africa
| | - R P H Peters
- Department of Medical Microbiology, Faculty of Health Sciences, University of Pretoria, 0002 Prinshof, Gauteng, South Africa; Department of Medical Microbiology, Maastricht University Medical Centre, School CAPHRI, Care and Public Health Research Institute, Maastricht University, Maastricht, the Netherlands.
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Wan Jamaludin WF, Mohamad Yusoff F, Ismail NA, Mohd Idris MR, Palaniappan S, Ng CKK, Abdullah N, Zaider SZA, Abdul Wahid SFS. Autologous mononuclear cells from different sources are seen to improve wound healing in patients with haematological malignancies. Malays J Pathol 2018; 40:61-67. [PMID: 29704386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
INTRODUCTION Immunosuppressive state due to haematological malignancies and chemotherapy may cause disruption to wound healing despite optimum conventional treatment and standard wound dressing. Non-healing wounds are predisposed to infection whereas chemotherapy dose reductions or interruptions are associated with poor survival. BACKGROUND Mononuclear cells contain progenitor cells including haematopoietic and mesenchymal stem cells, endothelial progenitor cells and fibroblasts which facilitate wound healing through cytokines, growth factor secretions, cell-cell interactions and provision of extracellular matrix scaffolding. Clinical applications of autologous mononuclear cells therapy in wound healing in non-malignant patients with critical limb ischaemia have been reported with remarkable outcome. METHODS We report three patients with haematological malignancies undergoing chemotherapy, who received autologous mononuclear cells implantation to treat non-healing wound after optimum conventional wound care. The sources of mononuclear cells (MNC) were from bone marrow (BM), peripheral blood (PB) and mobilised PB cells (mPB-MNC) using granulocyte colony stimulating factor (G-CSF). The cells were directly implanted into wound and below epidermis. Wound sizes and adverse effects from implantation were assessed at regular intervals. RESULTS All patients achieved wound healing within three months following autologous mononuclear cells implantation. No implantation adverse effects were observed. CONCLUSIONS Autologous mononuclear cells therapy is a feasible alternative to conventional wound care to promote complete healing in non-healing wounds compounded by morbid factors such as haematological malignancies, chemotherapy, diabetes mellitus (DM), infections and prolonged immobility.
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Affiliation(s)
- W F Wan Jamaludin
- Universiti Kebangsaan Malaysia Medical Centre, Cell Therapy Centre, Jalan Yaacob Latif, 56000 Kuala Lumpur, Malaysia.
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Daum LT, Peters RPH, Fourie PB, Jonkman K, Worthy SA, Rodriguez JD, Ismail NA, Omar SV, Fischer GW. Molecular detection of Mycobacterium tuberculosis from sputum transported in PrimeStore(®) from rural settings. Int J Tuberc Lung Dis 2016; 19:552-7. [PMID: 25868023 DOI: 10.5588/ijtld.14.0769] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
SETTING Mopani District, South Africa. OBJECTIVE To explore remote, molecular detection of Mycobacterium tuberculosis from sputum transported using PrimeStore(®) Molecular Transport Medium (PS-MTM) compared to settings where microscopy or Xpert(®) MTB/RIF is used as the baseline test. DESIGN Two sputum specimens were collected from patients with cough of ⩾ 2 weeks at clinics in rural South Africa. Shortly after expectoration and before processing using Xpert, microscopy and liquid culture, a flocked swab was swirled in each of these specimens and placed in PS-MTM. Swabs were stored and transported to the United States at ambient temperature for real-time PrimeMix(®) polymerase chain reaction (PM-PCR). RESULTS Of 132 patients, 23 (17%) were positive on microscopy, 39 (30%) on Xpert and 44 (33%) by PS-MTM/PM-PCR. Concordance of PS-MTM/PM-PCR with positive microscopy and Xpert was respectively 96% and 85%. Of 107 microscopy-negative samples, 22 (21%) were positive using PS-MTM/PM-PCR, while 11/91 (12%) Xpert-negative samples were PS-MTM/PM-PCR-positive. PS-MTM/PM-PCR positivity was significantly higher than smear microscopy positivity (P < 0.001), but similar to Xpert (P = 0.33). CONCLUSION PCR testing of specimens transported in PS-MTM would enhance TB diagnosis in settings where smear microscopy is the baseline diagnostic test, and could provide an alternative in settings where Xpert testing is not available.
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Affiliation(s)
- L T Daum
- Longhorn Vaccines & Diagnostics, San Antonio, Texas, USA
| | - R P H Peters
- Anova Health Institute, Johannesburg, South Africa; Department of Medical Microbiology, University of Pretoria, South Africa; Department of Medical Microbiology, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - P B Fourie
- Department of Medical Microbiology, University of Pretoria, South Africa
| | - K Jonkman
- Anova Health Institute, Johannesburg, South Africa
| | - S A Worthy
- Longhorn Vaccines & Diagnostics, San Antonio, Texas, USA
| | - J D Rodriguez
- Longhorn Vaccines & Diagnostics, San Antonio, Texas, USA
| | - N A Ismail
- National Institute for Communicable Diseases, National TB Reference Laboratory, Sandringham, South Africa
| | - S V Omar
- National Institute for Communicable Diseases, National TB Reference Laboratory, Sandringham, South Africa
| | - G W Fischer
- Longhorn Vaccines & Diagnostics, San Antonio, Texas, USA
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12
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Gabal HAM, Ismail NA, Dewedar SA, Abousief HA, Wadood MAE. Mini nutritional assessment and malnutrition universal screening tool in detection of osteoporosis. Eur J Public Health 2015; 25. [DOI: 10.1093/eurpub/ckv176.300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023] Open
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13
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Ismail NA, Bence J, Spyt TJ. Surgical ventricular reconstruction and subendocardial resection for the treatment of refractory ventricular tachycardia. Ann R Coll Surg Engl 2014; 96:e26-7. [PMID: 25350173 DOI: 10.1308/003588414x13946184903603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
We describe a case of 64-year-old female patient with ventricular tachycardia intractable to medical treatment and acute heart failure following myocardial infarction. Emergency surgical ventricular reconstruction and subendocardial resection was undertaken. We discuss the option of surgical intervention in this difficult and unusual clinical scenario.
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Affiliation(s)
- N A Ismail
- University Hospitals of Leicester NHS Trust, UK
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14
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Sam AH, Busbridge M, Amin A, Webber L, White D, Franks S, Martin NM, Sleeth M, Ismail NA, Daud NM, Papamargaritis D, Le Roux CW, Chapman RS, Frost G, Bloom SR, Murphy KG. Hepcidin levels in diabetes mellitus and polycystic ovary syndrome. Diabet Med 2013; 30:1495-9. [PMID: 23796160 PMCID: PMC4232927 DOI: 10.1111/dme.12262] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2012] [Revised: 05/14/2013] [Accepted: 06/18/2013] [Indexed: 12/11/2022]
Abstract
AIM Increased body iron is associated with insulin resistance. Hepcidin is the key hormone that negatively regulates iron homeostasis. We hypothesized that individuals with insulin resistance have inadequate hepcidin levels for their iron load. METHODS Serum concentrations of the active form of hepcidin (hepcidin-25) and hepcidin:ferritin ratio were evaluated in participants with Type 2 diabetes (n = 33, control subjects matched for age, gender and BMI, n = 33) and participants with polycystic ovary syndrome (n = 27, control subjects matched for age and BMI, n = 16). To investigate whether any changes observed were associated with insulin resistance rather than insulin deficiency or hyperglycaemia per se, the same measurements were made in participants with Type 1 diabetes (n = 28, control subjects matched for age, gender and BMI, n = 30). Finally, the relationship between homeostasis model assessment of insulin resistance and serum hepcidin:ferritin ratio was explored in overweight or obese participants without diabetes (n = 16). RESULTS Participants with Type 2 diabetes had significantly lower hepcidin and hepcidin:ferritin ratio than control subjects (P < 0.05 and P < 0.01, respectively). Participants with polycystic ovary syndrome had a significantly lower hepcidin:ferritin ratio than control subjects (P < 0.05). There was no significant difference in hepcidin or hepcidin:ferritin ratio between participants with Type 1 diabetes and control subjects (P = 0.88 and P = 0.94). Serum hepcidin:ferritin ratio inversely correlated with homeostasis model assessment of insulin resistance (r = -0.59, P < 0.05). CONCLUSION Insulin resistance, but not insulin deficiency or hyperglycaemia per se, is associated with inadequate hepcidin levels. Reduced hepcidin concentrations may cause increased body iron stores in insulin-resistant states.
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Affiliation(s)
- A H Sam
- Section of Investigative Medicine, Imperial College London, Hammersmith Hospital, London, UK
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15
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Aboul-Fotouh AM, Ismail NA, Ez Elarab HS, Wassif GO. Assessment of patient safety culture among healthcare providers at a teaching hospital in Cairo, Egypt. East Mediterr Health J 2012; 18:372-7. [PMID: 22768700 DOI: 10.26719/2012.18.4.372] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A previous study in Cairo, Egypt highlighted the need to improve the patient safety culture among health-care providers at Ain Shams University hospitals. This descriptive cross-sectional study assessed healthcare providers' perceptions of patient safety culture within the organization and determined factors that played a role in patient safety culture. A representative sample of 510 physicians, nurses, pharmacists, technicians and labourers in different departments answered an Arabic version of the Agency of Healthcare Research and Quality hospital survey for patient safety culture. The highest mean composite positive score among the 12 dimensions was for the organizational learning for continuous improvement (78.2%), followed by teamwork (58.1%). The lowest mean score was for the dimension of non-punitive response to error (19.5%). Patient safety culture still has many areas for improvement that need continuous evaluation and monitoring to attain a safe environment both for patients and health-care providers.
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Affiliation(s)
- A M Aboul-Fotouh
- Department of Community Medicine, Faculty of Medicine, Ain Shams University, Cairo, Egypt
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16
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Said HM, Kock MM, Ismail NA, Baba K, Omar SV, Osman AG, Hoosen AA, Ehlers MM. Evaluation of the GenoType® MTBDRsl assay for susceptibility testing of second-line anti-tuberculosis drugs. Int J Tuberc Lung Dis 2012; 16:104-9. [PMID: 22236854 DOI: 10.5588/ijtld.10.0600] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The GenoType® MTBDRsl assay is a new rapid assay for the detection of resistance to second-line anti-tuberculosis drugs. OBJECTIVE To evaluate the MTBDRsl assay on 342 multidrug-resistant tuberculosis isolates for resistance to ofloxacin (OFX), kanamycin (KM), capreomycin (CPM) and ethambutol (EMB), to compare the results to the agar proportion method, and to test discrepant results using DNA sequencing. RESULT The sensitivity and specificity of the MTBDRsl assay were respectively 70.3% and 97.7% for OFX, 25.0% and 98.7% for KM, 21.2% and 98.7% for CPM and 56.3% and 56.0% for EMB. DNA sequencing identified mutations that were not detected by the MTBDRsl assay. The 8/11 phenotypically OFX-resistant isolates had mutations in gyrA (2/8 had an additional mutation in the gyrB gene), 1/11 had mutations only in the gyrB gene, 6/21 phenotypically KM-resistant isolates had mutations in the rrs gene, and 7/26 and 20/26 phenotypically CPM-resistant isolates had mutations in the rrs and tlyA genes. CONCLUSION The MTBDRsl assay showed lower sensitivity than previous studies. The assay performed favourably for OFX; however, it was less sensitive in the detection of KM/CPM resistance and demonstrated low sensitivity and specificity for EMB resistance. It is recommended that the MTBDRsl assay include additional genes to achieve better sensitivity for all the drugs tested.
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Affiliation(s)
- H M Said
- Department of Medical Microbiology, Faculty of Health Science, University of Pretoria, Pretoria, South Africa.
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17
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Zabidi Z, Wan Zainulddin WN, Mamat SS, Shamsahal Din S, Kamisan FH, Yahya F, Ismail NA, Rodzi R, Hassan H, Mohtarrudin N, Somchit MN, Zakaria ZA. Antiulcer activity of methanol extract of Melastoma malabathricum leaves in rats. Med Princ Pract 2012; 21:501-3. [PMID: 22517296 DOI: 10.1159/000337406] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2011] [Accepted: 02/14/2012] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE To determine the potential antiulcer activity of methanol extract of Melastoma malabathricum leaves (MEMM) using various established rat models. MATERIALS AND METHODS Ten groups of rats were used and orally administered 10% DMSO (negative control), 100 mg/kg ranitidine (positive control) or MEMM (50, 250 and 500 mg/kg) followed by gastric ulcer induction either using ethanol or indomethacin. The stomachs were collected and subjected to macroscopic and microscopic analyses. RESULTS MEMM exhibited significant (p < 0.05) antiulcer activity in the ethanol, but not in the indomethacin-induced gastric ulcer model. The percentage of antiulcer activity for 50-500 mg/kg MEMM ranged between 3 and 75%, respectively. The gross observations were supported by histological findings. MEMM also aggravated the indomethacin-induced gastric ulcer, leading to an increase in ulcer area formation and ulcer score. CONCLUSION The M. malabathricum leaves showed antiulcer activity, which could be attributed to their antioxidant and anti-inflammatory activities. This requires further in-depth studies.
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Affiliation(s)
- Z Zabidi
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
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18
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Ismail NA, Baba K, Pombo D, Hoosen AA. Use of an immunochromatographic kit for the rapid detection of Mycobacterium tuberculosis from broth cultures. Int J Tuberc Lung Dis 2009; 13:1045-1047. [PMID: 19723388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023] Open
Abstract
In settings of high human immunodeficiency virus (HIV) prevalence, culture confirmation, preferably by liquid culture, is required for the diagnosis of tuberculosis (TB). However, long delays with phenotypic identification offsets the short turnaround time of liquid cultures. We report here the advantages of using a commercial immunochromatographic (ICT) assay targeting the Mycobacterium tuberculosis protein 64 (MPT-64) Ag and compare it with the Accuprobe MTB complex molecular probe assay. The performance of the ICT kit was excellent, with sensitivity, specificity, positive and negative predictive values of respectively 97%, 100%, 100%, and 92%. The kit requires a 15-min assay time, is easy to perform and is a good method for simplifying the diagnosis of TB.
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Affiliation(s)
- N A Ismail
- Department of Medical Microbiology, University of Pretoria and the Microbiology Diagnostic Laboratory, Tshwane Academic Division, National Health Laboratory Service (NHLS), Pretoria, South Africa.
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19
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Ismail NA, Aboul Ftouh AM, El-Shoubary WH, Mahaba H. Safe injection practice among health-care workers in Gharbiya Governorate, Egypt. East Mediterr Health J 2007; 13:893-906. [PMID: 17955773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
We assessed safe injection practices among 1100 health-care workers in 25 health-care facilities in Gharbiya Governorate. Questionnaires were used to collect information and 278 injections were observed using a standardized checklist. There was a lack of infection control policies in all the facilities and a lack of many supplies needed for safe injection. Proper needle manipulation before disposal was observed in only 41% of injections, safe needle disposal in 47.5% and safe syringe disposal in 0%. Reuse of used syringes and needles was reported by 13.2% of the health-care workers and 66.2% had experienced a needle-stick injury. Only 11.3% had received a full course of hepatitis B vaccination.
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Affiliation(s)
- N A Ismail
- Community, Environmental and Occupational Medicine Department, Ain Shams University Cairo, Egypt.
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20
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Ibrahim F, Ooi KF, Ismail NA, Taib MN, Wan Abas WAB. Analysis of water compartment in dengue patients. Conf Proc IEEE Eng Med Biol Soc 2007; 2005:4130-3. [PMID: 17281142 DOI: 10.1109/iembs.2005.1615372] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
This paper describes the water compartments in healthy subjects and dengue patients on the day of defervescence of fever using bioelectrical impedance analysis. A total of 223 healthy subjects (65 males and 158 females) and 210 dengue patients (119 males and 91 females) in Hospital Universiti Kebangsaan Malaysia (HUKM), were studied. The ages for healthy subjects vary between 14 and 60 years old with mean age of 26.05 years while the ages for the dengue patients vary between 12 and 83 years old with mean age of 30.14 years. The parameters of water compartments investigated were total body water (TBW), extracellular water (ECW) and intracellular water (ICW). There were significant difference between healthy subjects and dengue patients for both male (p<0.05) and female (p<0.001) beginning on fever day 0 till fever day 4. The mean TBW and ECW values of dengue patients obtained were found to be higher than the normal healthy subjects while the mean ICW was lower. The mean TBW and ICW for male were higher than female while the mean ECW for male was lower than female for healthy subjects and dengue patients.
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Affiliation(s)
- F Ibrahim
- Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia. (phone: 603-7967-4581; fax: 603-7967-4579; email )
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21
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Abstract
BACKGROUND There is a belief that peritoneal dialysis may be an important treatment modality for refractory heart failure, allowing at least an improvement in quality if not quantity of life during the last stage of this debilitating chronic disease. This paper examines the rationale behind this modality, critically appraises the available literature, calls for more research in the area and puts forward a framework for considering peritoneal dialysis in refractory heart failure. CONCLUSION When faced with a patient with refractory heart failure admitted to hospital on multiple occasions because of complications of volume overload, the following approach to initiating peritoneal dialysis should be considered: subjects for dialysis must have a minimal blood pressure, and those whose hemodynamic status improves with diuresis, even though they develop a pre-renal picture, may be the best candidates.
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Affiliation(s)
- S W Tobe
- Sunnybrook and Women's College Health Sciences Centre, Toronto, Canada
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22
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Abstract
This paper describes a model for predicting hemoglobin (Hb) by using bioelectrical impedance analysis (BIA) in dengue patients in the Hospital Universiti Kebangsaan Malaysia (HUKM). Bioelectrical impedance measurements were conducted on 83 (47 males and 36 females) serologically confirmed dengue fever (DF) and dengue hemorrhagic fever (DHF) patients during their hospitalization. The predictive equation for Hb was derived using multivariate analysis. We investigated all the parameters in BIA, patients' symptom and demographic data. In this developed model, four predictors (reactance (XC), sex, weight and vomiting) were found to be the best predictive factors for modeling Hb in dengue patients. However, the model can only explain approximately 42% of the variation in Hb status, thus single frequency bio-impedance stand-alone technique is insufficient to monitor Hb for the DF and DHF patients. Further investigation using multi-frequency BIA is recommended in modeling Hb to achieve the most parsimonious model.
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Affiliation(s)
- F Ibrahim
- Department of Biomedical Engineering, Faculty of Engineering. University of Malaya, 50603, Kuala Lumpur, Malaysia.
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23
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Bakr EM, Ismail NA, Mahaba HM. Impact of life style on the nutritional status of medical students at Ain Shams University. J Egypt Public Health Assoc 2002; 77:29-49. [PMID: 17219889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
This cross sectional study was carried out to assess the nutritional status of medical students and to determine its relation to their life style. The study involved 317 students at, Am Shams University. Anthropometric measurements such as weight, height, mid-arm circumference, triceps skin fold thickness and body mass index were measured. The students completed a self-administered questionnaire including data about some life style factors and food-frequency consumption. The study revealed that 41.3% of the students were of normal weight while 9.5% of the sample were underweight, 36.9% were overweight and 12.5% were obese. The mean mid upper arm circumference (MUAC) and mid arm muscle circumference (MAMC) of males was significant higher than that of females, while the mean triceps skin fold (TSF) of females was significant higher than that of males. The food frequency questionnaire analysis showed that most of students consume all food groups items faire. There was no statistical significant difference between the body mass index (BMI) of students and different types of food consumption. About two thirds of the students used to practice exercise, 26.9% of the students practiced exercise for less than 2 hours per week, while 33.9% of them for more than 2 hours. There was no statistical significant difference between the BMI of students and different types of exercise. However, there was significant higher percentage of males play sports and practice running (44.7% and 19.4% respectively) compared to (11.7% and 8.1%) of females. Sixty four percent of the students usually have regular meals. About 87.2% of obese compared to 64.9% of normal weight students eat snacks between meals, the difference was statistically significant. Obese individuals eat more during watching television and during feeling of stress compared to non-obese and the difference was statistically significant. The duration of practicing exercise, sports and playing computer was significantly higher in males than females. However, the duration of watching television was significantly higher in females than males. Logistic regression analysis results showed that family history of obesity and some life style factors as duration of computer use, eating more during stress time and snacking between meals were important risk factors for obesity. We concluded that about half of medical students were overweight and obese. The most important life style factors responsible for obesity were longer time spent using computer, eating more during time of stress and snacking between meals. Also, genetic factors played an important role in development of obesity. It is recommended to develop nutritional education and physical activities programs to face the problem of increasing the rate of overweight and obesity among university students.
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Affiliation(s)
- E M Bakr
- Department of Community, Occupational, and Environmental Medicine, Faculty of Medicine, Ain Shams University, Cairo, Egypt
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24
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Mahaba HM, Ismail NA, El Damaty SI, Kamel HA. Pre-eclampsia: epidemiology and outcome of 995 cases. J Egypt Public Health Assoc 2001; 76:357-68. [PMID: 17216932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
OBJECTIVE To study the epidemiology and pregnancy outcome of pre-eclampsia at Ain Shams University Hospital for Obstetrics and Gynecology. STUDY DESIGN A case control study involved 995 cases of pre-eclampsia, 227 cases with chronic hypertension and 1375 cases with normal pregnancy delivered during the year 2000 at Ain Shams University Maternity Hospital. All these cases were critically analyzed regarding to some risk factors as age, parity, blood group, diabetes mellitus, Rhesus factor and multiple pregnancy. The outcomes of all these 3 groups were compared regarding to maternal and fetal morbidity and mortality. RESULTS Pre-eclampsia was more common in elder age, blood group B, in Rhesus negative, during summer, multiple pregnancy and in patients with diabetes mellitus. The difference was statistically significant regarding all these risk factors (p < 0.01) when compared with cases of chronic hypertension and patients with normal pregnancies. CONCLUSIONS In this work pre-eclampsia was found to be an important cause for maternal and fetal mortality. Also it was found to be an important cause for premature deliveries.
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Affiliation(s)
- H M Mahaba
- Department of Community, Occupational, and Environmental Medicine, Faculty of Medicine, Ain Shams University, Cairo, Egypt
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25
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Mahaba HM, Ismail NA, El Teheiwy MM, El-Goewily MM, Ramadan MS. Development of weight gain charts for healthy Egyptian pregnant women. J Egypt Public Health Assoc 2001; 76:369-91. [PMID: 17216933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
A prospective study was conducted to develop weight gain charts for healthy Egyptian pregnant women and to determine the relationship between different anthropometric indicators and favorable birth weight. A total of 830 pregnant women were enrolled in the study. The mean total weight gain was 9.3 kg. The velocity growth chart that were developed for weight gain showed that the increment of weight was about one kg up to the 4th gestational month, then, a steady increase of 0.37 kg per week till the end of pregnancy. The mean total gain in mid upper arm circumference (MUAC) was 0.8 cm and in triceps skin fold was 1.9 mm. There was a highly positive correlation between all anthropometric indicators studied and the birth weight. However only total weight gain and weight of the mother at first trimester showed significant relation with birth weight after using multi regression analysis. It is recommended to use the developed weight gain charts for monitoring the nutritional status of pregnant women and the MUAC and triceps skin folds are to be used for screening women at risk for malnutrition.
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Affiliation(s)
- H M Mahaba
- Department of Community, Environmental and Occupational Medicine, Faculty of Medicine, Ain Shams University
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26
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Ismail NA, Wasty F, Moore S, Alavi MZ. Injury-induced alterations in newly synthesized sulphated proteoglycans from rabbit arterial neointima covered by regenerated endothelium. Int J Exp Pathol 1997; 78:71-9. [PMID: 9203981 PMCID: PMC2694525 DOI: 10.1046/j.1365-2613.1997.d01-242.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Proteoglycan (PG) synthesis is a highly regulated, dynamic process that is known to be altered during atherogenesis. Endothelial injury, which may be the primary event in atherosclerosis, has been reported to stimulate PG synthesis and accumulation in the arterial extracellular matrix. The objective of this investigation was to study injury-induced alterations in PG synthesis and accumulation in the neointima, developed in response to a selective balloon catheter de-endothelialization of aortas of normocholesterolaemic rabbits. One group of rabbit aortas was incubated with 35S-Na2SO4 for 8 h, to study in vitro the de novo synthesis of sulphated PG. Another group of rabbit aortas was used to study PG accumulated in aortic neointima vs. PG present in intima-media of normal aortas. Newly synthesized sulphated PG was characterized by light microscopic radioautography and size exclusion chromatography. Purified intimal-medial PG extracts from unlabelled aortas were analysed for protein and glycosaminoglycan (GAG) content and GAG distribution pattern. Results from this study revealed that the neointima of injured aortas synthesized sulphated PG at a significantly higher concentration than the intima of normal aortas. Size exclusion chromatography revealed that neointima synthesized higher molecular weight PG, and in a higher proportion, than its counterpart PG from normal aortas. PG accumulated in neointima of injured aortas showed a significantly altered GAG distribution pattern. These data confirm that neointima developed in response to injury synthesizes and accumulates PG which is altered compared to PG present in the intima-media of normal aorta.
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Affiliation(s)
- N A Ismail
- Department of Pathology, McGill University, Montreal, Québec, Canada
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27
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Abstract
This work aimed to study the changes in sex hormones and lipid profile in adult female albino rats subjected to treatment with nicotine (N), immobilization stress (S), or their combinations (N+S). These treatments were applied either for one day (T1) or daily for 10 days (T10), after which rats in the estrus stage were used for the determination of plasma corticosterone (CS), serum sex hormones as progesterone (P), estrogen (E), FSH, LH and serum lipid profile including total cholesterol (TC), HDL-C, LDL-C, triacylglycerol (TG) and non esterified fatty acids (NEFA). It was clear that either N or S raised plasma CS and serum P levels in both the treatment regimens and that N+S induced a higher level of these hormones compared to each treatment alone. Serum E level was only elevated during T10 regimen only. An increase in serum LH level was only observed after a single exposure to either N or S, however their combination abolished the stimulatory effect induced by each treatment alone. Serum FSH was not altered by exposure to either N or S alone in both regimens, but in the T10 regimen their combination significantly lowered FSH level. Regarding the effect on serum lipid profile, serum TC was increased in all T10 regimen groups. LDL-C was increased by N+S treatment in both regimens, however no change in HDL-C level was observed in all groups. Serum NEFA was increased in all the treated groups during T10 regimen, while in the T1 regimen NEFA level was only elevated by the combination N+S. Serum TG was insignificantly altered in all the treated groups. The observed changes in the lipid pattern were attributed to the alterations occurred in CS and female sex hormones that caused by N, S or their combinations.
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Affiliation(s)
- M M Abd el Mohsen
- Department of Biochemistry, Faculty of Pharmacy, Cairo University, Egypt
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28
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Ismail NA, Shaheen AA, el-Sawalhi MM, Megahed YM. Effect of calcium channel antagonists in modifying the inhibitory influence of adenosine on insulin secretion. Arzneimittelforschung 1995; 45:865-8. [PMID: 7575748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The present work was performed to study the effect of two calcium channel antagonists, namely verapamil (CAS 52-53-9) and nifedipine (CAS 21829-25-4) in modifying the inhibitory influence of adenosine on insulin secretion from isolated rat pancreatic islets. The combined effect of adenosine and these agents on serum insulin and glucose levels in vivo was also investigated. Both verapamil and nifedipine at 100 mumol/l and 1 mumol/l, respectively, produced a significant inhibition of glucose-stimulated insulin secretion from pancreatic islets. Combination of these agents with adenosine 10 mumol/l did not modify the inhibitory effect of adenosine on insulin secretion. Verapamil (21.6 mg/kg b.wt.) and nifedipine (5.4 mg/kg b.wt.) intraperitoneally injected prior to glucose loading produced a significant increase in serum glucose with an accompanied decrease in serum insulin levels. Concurrent administration of verapamil with adenosine neither affected the hyperglycaemic nor the hypoinsulinaemic effects of adenosine, whereas combined administration of nifedipine and adenosine decreased the hyperglycaemic effect of adenosine but not its hypoinsulinaemic effect. These results may indicate that these calcium channel antagonists do not interact with adenosine receptors which mediate its inhibitory effect on insulin secretion.
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Affiliation(s)
- N A Ismail
- Biochemistry Department, Faculty of Pharmacy, Cario University, Egypt
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Ismail NA, Alavi MZ, Moore S. Isolation of lipoprotein-proteoglycan complexes from balloon catheter deendothelialized aortas and the uptake of these complexes by blood monocyte-derived macrophages. Pathology 1994; 26:145-53. [PMID: 8090587 DOI: 10.1080/00313029400169391] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Lipoprotein-Proteoglycan (LP-PG) complexes from the neointima, developed in response to injury, were studied to examine their ability to stimulate lipid accumulation in blood monocyte-derived macrophages (BMDM). LP-PG complexes were extracted from intimal-medial tissues from normal and balloon catheter deendothelialized aortas of normocholesterolemic rabbits, in 0.16 M NaCl for 24 h at 4 degrees C. The extract was purified through an anti-apo-B affinity column. Adsorbed material dissociated with 4 M Gu-HCI buffer was analyzed for lipoproteins (LP) and glycosaminoglycans (GAG). Results demonstrated that LP-PG complexes consisted of apo-B associated with chondroitin sulfate and hyaluronic acid. BMDM were incubated with 125I-LP, 125I-LP-NPG (from normal aortas) or 125I-LP-IPG (from injured aortas) for 20 h at 37 degrees C. LP binding, internalization and degradation was markedly increased for LP-NPG and LP-IPG over native LP. Phagocytosis appeared to be the primary route of uptake of LP-PG complexes. Competition experiments indicated that about 40% of the uptake of LP-PG complexes is mediated by the apo-B/E receptor pathway. The scavenger receptor played a minor part in the uptake of LP-PG complexes. Data from this study indicate that LP-PG complexes are present in normal and injured aortas of normocholesterolemic rabbits and these complexes accelerate LP uptake by BMDM more than native LP. Therefore, LP-PG complexes may contribute to lipid accumulation by BMDM, thus generating foam cells. Furthermore, LP-PG complexes prepared from PG of injured aortas are more effective in lipid accumulation than LP-PG complexes from PG of normal aortas.
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Affiliation(s)
- N A Ismail
- Department of Pathology, McGill University, Montreal, Canada
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Ismail NA, Shaheen AA, el-Sawalhi MM, Megahed YM. Combined effect of adenosine, alpha adrenergic and adenosine antagonists on serum insulin and insulin secretion from rat pancreatic islets. Int J Biochem 1994; 26:381-386. [PMID: 8187934 DOI: 10.1016/0020-711x(94)90058-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
1. The effect of adenosine separately or in combination with alpha-1 adrenergic antagonist prazosin and alpha-2 adrenergic antagonist yohimbine as well as adenosine antagonists 8-phenyltheophylline and xanthine amine conjugate on glucose-induced insulin secretion from isolated rat pancreatic islets was studied. 2. Their in vivo effects on serum glucose and insulin levels were also investigated. Adenosine at 10 and 100 microM inhibited significantly, insulin secretion from the isolated islets whereas at 10 mM slightly increased the secretion of insulin. 3. Prazosin used at 100 microM inhibited insulin secretion. When it combined with adenosine (10 microM) it augmented the inhibitory effect of adenosine. 4. In vivo prazosin (21 mg/kg body wt) caused a hyperglycaemia which was accompanied by hypoinsulinaemia. 5. Concurrent administration of this drug with adenosine neither affect the hyperglycaemic nor the hypoinsulinaemic effects of adenosine. 6. On the other hand, yohimbine (100 microM) has no effect neither separately nor in combination with adenosine (10 microM) in modulating the inhibitory effect of adenosine on insulin secretion. 7. When Yohimbine administered at 19.5 mg/kg body wt it did not alter serum glucose but it markedly increased the serum insulin level. Its combined administration with adenosine reduced the hyperglycaemic effect of adenosine with a remarkable increase in serum insulin. 8. Both adenosine-antagonists were ineffective in alteration of insulin secretion. 9. However, combination of 8-phenyltheophylline with adenosine (10 microM) totally blocked the inhibitory effect of adenosine on insulin secretion while xanthine amine conjugate failed to prevent this effect of adenosine.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- N A Ismail
- Department of Biochemistry, Faculty of Pharmacy, Cairo University, Egypt
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Abstract
Lipoprotein-proteoglycan (LP-PG) complexes are taken up more avidly by macrophages and smooth muscle cells (SMCs) than native lipoproteins (LPs). The enhanced uptake may contribute to lipid accumulation and foam cell formation during atherogenesis. Endothelial injury is known to alter proteoglycan (PG) synthesis and distribution in the neointima developed in response to injury. The present study examines the uptake and degradation of LP-PG complexes, derived from PG of injured aortas by arterial SMCs. Rabbit apo-B lipoprotein (LP), including VLDL, IDL and LDL was isolated by ultracentrifugation and coupled with PG extracted from normal aortas (NPG) or with PG from injured aortas (IPG). Rabbit aortic SMCs were cultured from intima-media explants, incubated with 125I-LP, 125I-LP-NPG or 125I-LP-IPG for 20 h at 37 degrees C. LP binding, internalization and degradation were markedly increased (P < 0.001) for LP-NPG and LP-IPG over native LP. Competition experiments indicated that more than 50% of the LP-PG complexes were taken up by the apo-B/E receptor pathway. Phagocytosis was the second important route of uptake of these complexes, whereas the scavenger receptor played a minor part in the uptake and degradation of LP-PG complexes. Data from this study indicate that LP-PG complexes accelerate LP uptake and degradation by SMC more than native LP. Therefore, these complexes may contribute to lipid accumulation by SMC, thus generating foam cells. Furthermore, LP-PG complexes prepared from PG of injured aortas are more effective in lipid accumulation than LP-PG complexes from PG of normal aortas.
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Affiliation(s)
- N A Ismail
- Department of Pathology, McGill University, Montreal, PQ, Canada
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Ismail NA, El-Denshary ES, Idahl LA, Lindström P, Sehlin J, Täljedal IB. Effects of alpha-adrenoceptor agonists and antagonists on insulin secretion, calcium uptake, and rubidium efflux in mouse pancreatic islets. Acta Physiol Scand 1983; 118:167-74. [PMID: 6137936 DOI: 10.1111/j.1748-1716.1983.tb07257.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Epinephrine, norepinephrine or the more selective alpha-2 adrenoceptor agonist, clonidine, inhibited insulin release from isolated pancreatic islets of lean mice or obese mice homozygous for the gene ob. Clonidine was highly effective at 0.1 mumol/l. In contrast, the preferential alpha-1 adrenoceptor agonist, phenylephrine, had no or only a modest effect at 10 mumol/l. The effects of norepinephrine or clonidine were counteracted by yohimbine, a preferential blocker of alpha-2 receptors, but not by prazosine, an alpha-1 receptor blocker. The glucose-stimulated uptake of 45Ca2+ in the islets was only consistently inhibited by epinephrine. This effect was counteracted by yohimbine. Clonidine had no effect on the release of 86Rb+ from preloaded islets. It is concluded that insulin secretion is suppressed by alpha-2 receptor agonism in the pancreatic beta-cells and that this effect is mediated by mechanisms other than the transmembrane fluxes of calcium or potassium ions.
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Abstract
The dopaminergic drug bromocriptine inhibited the release of insulin from isolated mouse pancreatic islets. The effect was counteracted by haloperidol or pimozide. It is suggested that insulin release may be inhibited through activation of D-2 dopaminergic receptors in the pancreatic beta-cells.
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Ismail NA, Montague W. Effects of guanosine on insulin secretion and adenylyl and guanylyl cyclase activities of isolated rat islets of Langerhans. Biochim Biophys Acta Gen Subj 1977; 498:325-30. [PMID: 18208 DOI: 10.1016/0304-4165(77)90270-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The effect of guanosine on insulin secretion, adenylyl and guanylyl cyclase activities of isolated rat islets of Langerhans was investigated. Guanosine (1-100 micron) inhibited glucose, tolbutamide, theophylline and prostaglandin E2-stimulated insulin secretion although it failed to affect glucagon stimulated secretion. Prostaglandin E2-stimulated adenylyl cyclase activity of islets was inhibited by guanosine although guanosine had no effect on basal, fluoride, glucagon or GTP-stimulated activity. Guanosine markedly decreased basal guanylyl cyclase activity of islets. These results suggest that guanosine may affect insulin release by inhibiting adenylyl and guanylyl cyclase activities in the beta-cell thereby decreasing the intracellular concentrations of cyclic nucleotides. This effect may be important in modulating the secretory response of the islets to a variety of hormonal agents.
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Abstract
The effect of adenosine in insulin secretion and adenylate cyclase activity of rat islets of Langerhans was investigated. Adenosine inhibited insulin secretion stimulated by glucose, glucagon, prostaglandin E2, tolbutamine and theophylline. Adenosine decreased basal adenylate cyclase activity of the islets as well as that stimulated by glucagon prostaglandin E2 and GTP, although fluoride-stimulated activity was not affected. Neither insulin secretion nor adenylate cyclase activity of the islets was affected by adenine, AMP or ADP. The inhibitory effect of adenosine on adenylate cyclase activity was not altered by either phenoxybenzamine (alpha-adrenergic blocker) or propranolol (beta-adrenergic blocker), suggesting that the effect is not mediated through the adrenergic receptors of the islet cells. These results suggest that the intracellular concentration of adenosine in the beta-cell may play a role in regulating insulin secretion and that this effect may be mediated via alterations in the activity of adenylate cyclase in the beta-cell.
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El-Denshary ES, Ismail NA, Montague W. Effects of chloropromazine on isolated rat islets of Langerhans. Horm Metab Res 1977; 9:95. [PMID: 321319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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