46 results on '"A. Ako"'
Search Results
2. Interval walking training in type 2 diabetes: A pilot study to evaluate the applicability as exercise therapy
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Kitajima, Kouhei, primary, Oiwa, Ako, additional, Miyakoshi, Takahiro, additional, Hosokawa, Manami, additional, Furihata, Mayuka, additional, Takahashi, Masaaki, additional, Masuki, Shizue, additional, Nose, Hiroshi, additional, Okubo, Yosuke, additional, Sato, Ai, additional, Yamazaki, Masanori, additional, and Komatsu, Mitsuhisa, additional
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- 2023
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3. Incidence and risk factors of cardiovascular mortality in patients with gastrointestinal adenocarcinoma
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Nso, Nso, primary, Nyabera, Akwe, additional, Nassar, Mahmoud, additional, Mbome, Yolanda, additional, Emmanuel, Kelechi, additional, Alshamam, Mohsen, additional, Sumbly, Vickram, additional, Guzman, Laura, additional, Shaukat, Tanveer, additional, Bhangal, Rubal, additional, Ojong, Gilbert Ako, additional, Radparvar, Farshid, additional, Rizzo, Vincent, additional, and Munira, Most Sirajum, additional
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- 2023
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4. Socio-cultural factors associated with knowledge, attitudes and menstrual hygiene practices among Junior High School adolescent girls in the Kpando district of Ghana: A mixed method study
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Kpodo, Lebene, primary, Aberese-Ako, Matilda, additional, Axame, Wisdom Kudzo, additional, Adjuik, Martin, additional, and Gyapong, Margaret, additional
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- 2022
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5. The socio-economic and health effects of COVID-19 among rural and urban-slum dwellers in Ghana: A mixed methods approach
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Aberese-Ako, Matilda, primary, Immurana, Mustapha, additional, Dalaba, Maxwell Ayindenaba, additional, Anumu, Fidelis E. Y., additional, Ofosu, Anthony, additional, and Gyapong, Margaret, additional
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- 2022
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6. Interval walking training in type 2 diabetes: A pilot study to evaluate the applicability as exercise therapy
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Kouhei Kitajima, Ako Oiwa, Takahiro Miyakoshi, Manami Hosokawa, Mayuka Furihata, Masaaki Takahashi, Shizue Masuki, Hiroshi Nose, Yosuke Okubo, Ai Sato, Masanori Yamazaki, and Mitsuhisa Komatsu
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Multidisciplinary - Abstract
There are few established easy-to-perform exercise protocols with evidence-based effects for individuals with type 2 diabetes (T2D). A unique exercise regimen, interval walking training (IWT), has been reported to be beneficial for improving metabolic function, physical fitness and muscle strength in adults of overall health. This pilot study aims to demonstrate descriptive statistics of IWT adherence and changes in various data before and after the intervention of IWT in adults with T2D, perform statistical hypothesis testing, and calculate effect sizes. We performed a single-arm interventional pilot study with IWT for 20 weeks. We enrolled 51 participants with T2D aged 20–80 years with glycohemoglobin (HbA1c) levels of 6.5–10.0% (48–86 mmol/mol) and a body mass index of 20–34 kg/m2, respectively. The target was 60 min/week of fast walking for 20 weeks. The participants visited the hospital and were examined at 4-week intervals during this period. Between the start of IWT and after 20 weeks, we measured and evaluated changes in glucose and lipid metabolism data, body composition, physical fitness, muscle strength, dietary calorie intake, and daily exercise calories. All included participants completed IWT, with 39% of them reaching the target length of fast walking over 1,200 minutes in 20 weeks. In the primary outcome, HbA1c levels, and in the secondary, lipid metabolism and body composition, no significant changes were observed except for high-density lipoprotein cholesterol (HDL-C) (from 1.4 mmol/L to 1.5 mmol/L, p = 0.0093, t-test). However, in the target achievement group, a significant increase in VO2 peak by 10% (from 1,682 mL/min to 1,827 mL/min, p = 0.037, t-test) was observed. Effect sizes were Cohen’s d = 0.25 of HDL-C, -0.55 of triglyceride, and 0.24 of VO2 peak in the target achievement group, which were considered to be of small to medium clinical significance. These results could be solely attributed to IWT since there were no significant differences in dietary intake and daily life energy consumption before and after the study. IWT could be highly versatile and was suggested to have a positive effect on lipid metabolism and physical fitness. In future randomized controlled trial (RCT) studies, the detailed effects of IWT, focusing on these parameters, will be examined. Trial registration: This trial was registered with the Japanese University Hospital Medical Information Network Clinical Trials Registry (UMIN-CTR: Usefulness on interval walking training in patients with type 2 diabetes. 000037303).
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- 2023
7. Determinants of blood glucose control among people with Type 2 diabetes in a regional hospital in Ghana
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Djonor, Sampson Kafui, primary, Ako-Nnubeng, Ignatius Terence, additional, Owusu, Ewurama Ampadu, additional, Akuffo, Kwadwo Owusu, additional, Nortey, Pricillia, additional, Agyei-Manu, Eldad, additional, and Danso-Appiah, Anthony, additional
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- 2021
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8. The socio-economic and health effects of COVID-19 among rural and urban-slum dwellers in Ghana: A mixed methods approach
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Matilda Aberese-Ako, Mustapha Immurana, Maxwell Ayindenaba Dalaba, Fidelis E. Y. Anumu, Anthony Ofosu, and Margaret Gyapong
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Male ,Rural Population ,Multidisciplinary ,Adolescent ,Socioeconomic Factors ,Urban Population ,Poverty Areas ,COVID-19 ,Humans ,Ghana - Abstract
BackgroundVulnerable populations such as rural and urban-slum dwellers are more likely to suffer greatly from the deleterious effects of the novel Coronavirus disease 2019 (COVID-19). However, in Ghana, most COVID-19 mitigating packages are not focused on vulnerable populations.MethodsConcurrent mixed methods design was used to examine the socio-economic and health effects of COVID-19 among rural and urban-slum dwellers in Ghana. Four hundred respondents were sampled for the quantitative arm of the study, while 46 In-depth Interviews (IDIs) were conducted with community members and government officials. Sixty-four community members participated in Focus Group Discussions (FGDs) and non-participant observation was carried out for three months. Quantitative data were analysed using frequencies, percentages, Pearson Chi2 and ordered logistic regression. Interviews were recorded using digital recorders and later transcribed. Transcribed data (IDIs, FGDs) and observation notes were uploaded onto a computer and transferred to qualitative software NVivo 12 to support thematic coding and analysis.ResultsMajority of the respondents confirmed the deleterious socio-economic and health effects of COVID-19 on jobs and prices of food. Other effects were fear of visiting a health facility even when unwell, depression and anxiety. Young people (18–32 years), males, urban-slum dwellers, married individuals, the employed and low-income earners (those who earn GHC10/$1.7 to GHC100/ $17), were more likely to suffer from the socio-economic and health effects of COVID-19. Urban-slum dwellers coped by relying on family and social networks for food and other basic necessities, while rural dwellers created locally appropriate washing aids to facilitate hand washing in the rural communities.ConclusionCOVID-19 and the government’s mitigation measures had negative socio-economic and health effects on vulnerable communities. While vulnerable populations should be targeted for the government’s COVID-19 mitigating packages, special attention should be given to young people (18–32 years), males, urban-slum dwellers, married individuals and low-income earners. Communities should be encouraged to maintain coping strategies adopted even after COVID-19.
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- 2021
9. An ethnographic study of how health system, socio-cultural and individual factors influence uptake of intermittent preventive treatment of malaria in pregnancy with sulfadoxine-pyrimethamine in a Ghanaian context
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Matilda Aberese-Ako, Evelyn K. Ansah, Gifty Dufie Ampofo, Pascal Magnussen, Harry Tagbor, and Margaret Gyapong
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Maternal Health ,Health Care Providers ,Psychological intervention ,Nurses ,Ghana ,Geographical Locations ,0302 clinical medicine ,Medical Conditions ,Pregnancy ,Health care ,Preventive Health Services ,Medicine and Health Sciences ,030212 general & internal medicine ,Medical Personnel ,Protozoans ,Multidisciplinary ,1. No poverty ,Attendance ,Malarial Parasites ,Obstetrics and Gynecology ,Eukaryota ,Prenatal Care ,3. Good health ,Outreach ,Professions ,Drug Combinations ,Pyrimethamine ,Medicine ,Female ,medicine.drug ,Research Article ,Adult ,Science ,030231 tropical medicine ,Context (language use) ,Community Health Planning ,03 medical and health sciences ,Antimalarials ,Young Adult ,Antenatal Care ,Environmental health ,parasitic diseases ,Sulfadoxine ,medicine ,Parasitic Diseases ,Humans ,Anthropology, Cultural ,business.industry ,Organisms ,Biology and Life Sciences ,medicine.disease ,Tropical Diseases ,Sulfadoxine/pyrimethamine ,Parasitic Protozoans ,Malaria ,Health Care ,Pregnancy Trimester, First ,Health Care Facilities ,Pregnancy Complications, Parasitic ,People and Places ,Africa ,Women's Health ,Population Groupings ,Pregnant Women ,business - Abstract
Background Intermittent preventive treatment of malaria among pregnant women with sulfadoxine-pyrimethamine (IPTp-SP), is one of the three recommended interventions for the prevention of malaria in pregnancy (MiP) in sub-Sahara Africa. The World Health Organisation recommended in 2012 that SP be given at each scheduled ANC visit except during the first trimester and can be given a dose every month until the time of delivery, to ensure that a high proportion of women receive at least three doses of SP during pregnancy. Despite implementation of this policy, Ghana did not attain the target of 100% access to IPTp-SP by 2015. Additionally, negative outcomes of malaria infection in pregnancy are still recurring. This ethnographic study explored how health system, individual and socio-cultural factors influence IPTp-SP uptake in two Ghanaian regions. Methods The study design was ethnographic, employing non-participant observation, case studies and in depth interviews in 8 health facilities and 8 communities, from April 2018 to March 2019, in two Ghanaian regions. Recommended ethical procedures were observed. Results Health system factors such as organization of antenatal care (ANC) services and strategies employed by health workers to administer SP contributed to initial uptake. Women’s trust in the health care system contributed to continued uptake. Inadequate information provided to women accessing ANC, stock-outs and fees charged for ANC services reduced access to IPTp-SP. Socio-cultural factor such as encouragement from social networks influenced utilization of ANC services and IPTp-SP uptake. Individual factors such as refusing to take SP, skipping ANC appointments and initiating ANC attendance late affected uptake. Conclusion Health system, socio-cultural and individual factors influence uptake of optimum doses of IPTp-SP. Consequently, interventions that aim at addressing IPTp-SP uptake should focus on regular and sufficient supply of SP to health facilities, effective implementation of free ANC, provision of appropriate and adequate information to women and community outreach programmes to encourage early and regular ANC visits.
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- 2021
10. Socio-cultural factors associated with knowledge, attitudes and menstrual hygiene practices among Junior High School adolescent girls in the Kpando district of Ghana: A mixed method study
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Lebene Kpodo, Matilda Aberese-Ako, Wisdom Kudzo Axame, Martin Adjuik, and Margaret Gyapong
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Health Knowledge, Attitudes, Practice ,Schools ,Multidisciplinary ,Adolescent ,Humans ,Female ,Hygiene ,Menstrual Hygiene Products ,Ghana ,Menstruation - Abstract
Background Good menstrual hygiene practice is critical to the health of adolescent girls and women. In Ghanaian public schools, the School Health Education Program which includes menstrual health education has been instituted to equip adolescents with knowledge on menstruation and its related good hygiene practices. However, in most communities, menstruation is scarcely discussed openly due to mostly negative social and religious beliefs about menstruation. In this study, we examined socio-cultural factors associated with knowledge, attitudes and menstrual hygiene practices among Junior High School adolescent girls in the Kpando Municipality of Ghana. Materials and methods A mixed method approach was employed with 480 respondents. A survey was conducted among 390 adolescent girls using interviewer-administered questionnaires to collect data on knowledge of menstruation and menstrual hygiene practices. Focus Group Discussions (FGDs) using a discussion guide were conducted among 90 respondents in groups of 9 members. The FGD was used to collect data on socio-cultural beliefs and practices regarding menstruation. Descriptive and inferential statistics and content analysis were used to analyze the quantitative and qualitative data respectively. Results Most (80%) of the study participants had good knowledge of menstruation. Also, most (82%) of the participants practiced good menstrual hygiene. Attending a public (AOR = 0.24, 95% CI = 0.12–0.48, p Conclusion Despite the prominence of negative social and religious beliefs about menstruation, good menstrual hygiene practice was high among study participants. Knowledge of menstruation; place of residents; and type of school were the major factors associated with good menstrual hygiene practice. It is therefore, necessary to intensify the School Health Education Program in both rural and urban public and intensively involve private schools as well to ensure equal access to accurate information on menstruation and good menstrual hygiene practices among adolescent girls.
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- 2022
11. An ethnographic study of how health system, socio-cultural and individual factors influence uptake of intermittent preventive treatment of malaria in pregnancy with sulfadoxine-pyrimethamine in a Ghanaian context
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Aberese-Ako, Matilda, primary, Magnussen, Pascal, additional, Ampofo, Gifty D., additional, Gyapong, Margaret, additional, Ansah, Evelyn, additional, and Tagbor, Harry, additional
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- 2021
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12. Determinants of blood glucose control among people with Type 2 diabetes in a regional hospital in Ghana
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Sampson Kafui Djonor, Ignatius Terence Ako-Nnubeng, Ewurama Ampadu Owusu, Kwadwo Owusu Akuffo, Pricillia Nortey, Eldad Agyei-Manu, and Anthony Danso-Appiah
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Blood Glucose ,Male ,Physiology ,Biochemistry ,Ghana ,Geographical Locations ,Endocrinology ,Medical Conditions ,Medicine and Health Sciences ,Diabetes diagnosis and management ,Insulin ,Public and Occupational Health ,Prospective Studies ,Multidisciplinary ,Disease Management ,Middle Aged ,Blood Sugar ,Hospitals ,Body Fluids ,Blood ,Medicine ,Female ,Anatomy ,Research Article ,Adult ,HbA1c ,Endocrine Disorders ,Science ,Glycemic Control ,Diabetes Mellitus ,Humans ,Hemoglobin ,Exercise ,Nutrition ,Aged ,Diabetic Endocrinology ,Biology and life sciences ,Proteins ,Physical Activity ,Diagnostic medicine ,Hormones ,Diet ,Cross-Sectional Studies ,Diabetes Mellitus, Type 2 ,Food ,Metabolic Disorders ,People and Places ,Africa ,Diet Therapy - Abstract
Aims To assess the determinants of glycaemic control among patients with Type 2 diabetes mellitus (T2DM) presenting at the Greater Accra Regional Hospital, Ghana. Methods The study employed semi-structured questionnaires and review of clinical records of patients 16 years and above with Type 2 Diabetes. Results The mean age of participants was 56.6 ± 13.8 years, with majority (71.6%) being females. A total of 161 (59.4%) of patients had poor glycaemic control (HbA1c ≥8.1%; 95% CI: 53.6 to 65.3%). Poor glycaemic control was significantly associated with high body mass index of the patient (AOR 13.22; 95% CI: 1.95 to 89.80), having only elementary education (AOR 5.22, 95% CI 2.12–12.86, p Conclusions The study results showing that a high proportion of patients attending the Diabetes Clinic with uncontrolled diabetes has serious implications for the management of T2DM diabetes as it suggests that current hospital-based treatment measures are less effective. Comprehensive management of T2DM targeting all the key factors identified in this study and incorporating a multispectral collaborative effort based on holistic approach, combined with non-pharmacological components are strongly warranted.
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- 2021
13. Managing urban solid waste in Ghana: Perspectives and experiences of municipal waste company managers and supervisors in an urban municipality
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Lissah, Samuel Yaw, primary, Ayanore, Martin Amogre, additional, Krugu, John K., additional, Aberese-Ako, Matilda, additional, and Ruiter, Robert A. C., additional
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- 2021
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14. Post-intensive care syndrome as a predictor of mortality in patients with critical illness: A cohort study
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Yanagi, Naoya, primary, Kamiya, Kentaro, additional, Hamazaki, Nobuaki, additional, Matsuzawa, Ryota, additional, Nozaki, Kohei, additional, Ichikawa, Takafumi, additional, Valley, Thomas S., additional, Nakamura, Takeshi, additional, Yamashita, Masashi, additional, Maekawa, Emi, additional, Koike, Tomotaka, additional, Yamaoka-Tojo, Minako, additional, Arai, Masayasu, additional, Matsunaga, Atsuhiko, additional, and Ako, Junya, additional
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- 2021
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15. Post-intensive care syndrome as a predictor of mortality in patients with critical illness: A cohort study
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Junya Ako, Minako Yamaoka-Tojo, Takafumi Ichikawa, Naoya Yanagi, Kohei Nozaki, Nobuaki Hamazaki, Emi Maekawa, Masashi Yamashita, Thomas S. Valley, Kentaro Kamiya, Ryota Matsuzawa, Tomotaka Koike, Masayasu Arai, Takeshi Nakamura, and Atsuhiko Matsunaga
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Male ,Pediatrics ,Physical disability ,Epidemiology ,Kaplan-Meier Estimate ,030204 cardiovascular system & hematology ,law.invention ,Cohort Studies ,Disability Evaluation ,0302 clinical medicine ,Mathematical and Statistical Techniques ,law ,Cause of Death ,Medicine and Health Sciences ,Medicine ,Depression (differential diagnoses) ,Cognitive Impairment ,Multidisciplinary ,Depression ,Cognitive Neurology ,Mortality rate ,Hazard ratio ,Statistics ,Middle Aged ,Physical Functional Performance ,Intensive care unit ,Patient Discharge ,Hospitals ,Intensive Care Units ,Neurology ,Physical Sciences ,Regression Analysis ,Female ,Cohort study ,Research Article ,medicine.medical_specialty ,Death Rates ,Science ,Critical Illness ,Cognitive Neuroscience ,Research and Analysis Methods ,03 medical and health sciences ,Population Metrics ,Mental Health and Psychiatry ,Humans ,Cognitive Dysfunction ,Statistical Methods ,Aged ,Proportional Hazards Models ,Retrospective Studies ,Population Biology ,business.industry ,Mood Disorders ,Biology and Life Sciences ,030208 emergency & critical care medicine ,Retrospective cohort study ,Length of Stay ,Post-intensive care syndrome ,Health Care ,Logistic Models ,Health Care Facilities ,Medical Risk Factors ,Cognitive Science ,business ,Mathematics ,Neuroscience - Abstract
Introduction The post-intensive care syndrome (PICS) encompasses multiple, diverse conditions, such as physical disability, cognitive impairment, and depression. We sought to evaluate whether conditions within PICS have similar associations with mortality among survivors of critical illness. Materials and methods In this retrospective cohort study, we identified 248 critically ill patients with intensive care unit stay ≥72 hours, who underwent PICS evaluation. Patients with disability in activities of daily living, cognitive impairment, or depression before hospitalization were excluded. We defined PICS using established measures of physical disability (usual gait speed), cognitive impairment (Mini-Cog test), and depression (Patient Health Questionnaire-2) at hospital discharge. The endpoint was all-cause mortality. Results Patients had a median age of 69 years and Acute Physiology and Chronic Health Evaluation (APACHE) II score of 16. One hundred thirty-two patients were classified as having PICS, and 19 patients died. 81/248 (34%) patients had physical disability, 42/248 (19%) had cognitive impairment, and 44/248 (23%) had depression. After adjusting for covariates on multivariable Cox regression analyses, PICS was significantly associated with all-cause mortality (hazard ratio [HR] 3.78, 95% confidence interval [CI] 1.02 – 13.95; P = 0.046). However, the association between PICS and all-cause mortality was related to physical disability and cognitive impairment (P = 0.001 and P = 0.027, respectively), while depression was not (P = 0.623). Conclusion While PICS as a syndrome has been useful in gaining attention to the sequelae of critical illness, its relationship with long-term mortality is driven largely by physical disability and cognitive impairment and not depression.
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- 2020
16. Effect of cardiac rehabilitation on cognitive function in elderly patients with cardiovascular diseases
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Akihiro Aoyama, Kazuhiro Fujiyoshi, Junya Ako, Toshiki Kutsuna, Minako Yamaoka-Tojo, Yoshiyasu Minami, and Shinichi Obara
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Male ,medicine.medical_treatment ,Cardiovascular Medicine ,030204 cardiovascular system & hematology ,Elderly ,Cognition ,0302 clinical medicine ,Medicine and Health Sciences ,Cognitive Impairment ,Aged, 80 and over ,Cardiac Rehabilitation ,Multidisciplinary ,Rehabilitation ,Cognitive Neurology ,Mental Status and Dementia Tests ,Exercise Therapy ,Neurology ,Cardiovascular Diseases ,Baseline characteristics ,Medicine ,Female ,Research Article ,medicine.medical_specialty ,Cognitive Neuroscience ,Science ,Geriatric Psychiatry ,Rehabilitation Medicine ,03 medical and health sciences ,Complementary and Alternative Medicine ,Internal medicine ,Mental Health and Psychiatry ,medicine ,Humans ,Dementia ,In patient ,Aged ,General linear model ,business.industry ,Significant difference ,Biology and Life Sciences ,medicine.disease ,Confidence interval ,Geriatrics ,Age Groups ,People and Places ,Cognitive Science ,Population Groupings ,business ,030217 neurology & neurosurgery ,Neuroscience - Abstract
Background Cognitive function is an important factor for secondary prevention in elderly patients with cardiovascular diseases. The objective of this study was to evaluate the impact of cardiac rehabilitation (CR) on the improvement of cognitive function. Methods A total of 66 consecutive elderly patients (≥70 years old) with cardiovascular diseases were prospectively enrolled. The change in cognitive function during 6 months was compared between the patients with monthly CR (at least once per month; n = 27) and those without monthly CR (n = 39). Cognitive function was evaluated using the Mini-mental State Examination (MMSE) and Frontal Assessment Battery (FAB). Results There was no significant difference in baseline characteristics between the 2 groups. The change in the MMSE score was significantly greater in patients with monthly CR than in those without monthly CR (2.3 ± 0.4 vs. −0.1 ± 0.3 points; p
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- 2020
17. Effect of cardiac rehabilitation on cognitive function in elderly patients with cardiovascular diseases
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Fujiyoshi, Kazuhiro, primary, Minami, Yoshiyasu, additional, Yamaoka-Tojo, Minako, additional, Kutsuna, Toshiki, additional, Obara, Shinichi, additional, Aoyama, Akihiro, additional, and Ako, Junya, additional
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- 2020
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18. Comparison of techniques to control the aggressive environmental invasive species Galenia pubescens in a degraded grassland reserve, Victoria, Australia
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Ako H. Mahmood, Christopher Turville, Grant C. Palmer, James F Sillitoe, David I. McLaren, Friedrich P. Graz, and Singarayer Florentine
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0106 biological sciences ,Invasive Species ,lcsh:Medicine ,Introduced species ,Plant Science ,01 natural sciences ,Biochemistry ,Invasive species ,Grassland ,chemistry.chemical_compound ,lcsh:Science ,Multidisciplinary ,geography.geographical_feature_category ,Galenia pubescens ,biology ,Ecology ,Plant Anatomy ,Eukaryota ,food and beverages ,Agriculture ,04 agricultural and veterinary sciences ,Vegetation ,Native plant ,Plants ,Lipids ,Terrestrial Environments ,Glyphosate ,Grasslands ,Seeds ,Agrochemicals ,Research Article ,Victoria ,010603 evolutionary biology ,Models, Biological ,Species Colonization ,Grasses ,Plant Communities ,geography ,Herbicides ,Plant Ecology ,Ecology and Environmental Sciences ,lcsh:R ,Organisms ,Biology and Life Sciences ,biology.organism_classification ,Agronomy ,chemistry ,Seedlings ,040103 agronomy & agriculture ,Aizoaceae ,0401 agriculture, forestry, and fisheries ,lcsh:Q ,Weeds ,Introduced Species ,Mulch ,Oils - Abstract
Across many southern regions of Australia, native grasslands have become seriously threatened by human activity, with only a fraction of the original areas remaining undisturbed. In particular, the introduction and establishment of exotic invasive weeds has caused significant degradation to the ecosystems in these areas by contributing to a decrease in native plant density and diversity, and this has ultimately led to major changes to the ecosystem structure and function. One such example is Galenia pubescens. Our objective of this study was to assess the effectiveness of four different attempts to control G. pubescens: herbicide control with glyphosate; organic herbicide control with pine oil; the application of mulch; and the addition of seeds of native species to the seedbank. Results shows that any one single control strategy is insufficient to control G. pubescens, and, in addition, it has shown that regeneration of native vegetation is limited unless direct seeding is applied. There was a strong indication that a combined strategy employing more than two of the aforementioned techniques is likely to be the most effective approach, at least in the short term. Underscoring the complexity of this task, our analysis on foliage cover of G. pubescens shows that the interaction of pine oil and glyphosate treatments appeared to be very effective after six months, but were not so effective after 18 months. By contrast, seeding with native seeds was not particularly effective at six months, but its longer-term contribution appears to be effective at 18 months. Further, our results obtained from the seedbank abundance study indicate that time alone was not a significant factor in restoration of the grasslands (p = 0.165); however there were interactions with time, shown by time*glyphosate (p = 0.008) and time*seeding (p = 0.016). Both interactions indicated that the applications of glyphosate and seeding were more beneficial after 18 months compared to six months. However, full regeneration of invaded native grasslands may not be possible unless further restoration programs are re-implemented after the first cycle of G. pubescens’ treatments have been completed.
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- 2018
19. Comparison of techniques to control the aggressive environmental invasive species Galenia pubescens in a degraded grassland reserve, Victoria, Australia
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Mahmood, Ako H., primary, Florentine, Singarayer, additional, Graz, Friedrich P., additional, Turville, Christopher, additional, Palmer, Grant, additional, Sillitoe, James, additional, and McLaren, David, additional
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- 2018
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20. 'I used to fight with them but now I have stopped!': conflict and doctor-nurse anaesthetists' motivation in maternal and neonatal care provision in a specialist referral hospital
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Matilda Aberese-Ako, Irene Akua Agyepong, Trudie Gerrits, Han van Dijk, and Anthropology of Health, Care and the Body (AISSR, FMG)
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Attitude of Health Personnel ,Science ,media_common.quotation_subject ,Decision Making ,education ,Mothers ,Nurses ,Private Practice ,WASS ,Participant observation ,Interpersonal communication ,Trust ,Care provision ,Conflict, Psychological ,Professional Competence ,Nursing ,Physicians ,Health care ,Team Spirit ,Humans ,Life Science ,Medicine ,Anesthesia ,Cooperative Behavior ,Referral and Consultation ,media_common ,Motivation ,Multidisciplinary ,Distrust ,business.industry ,Communication ,Infant, Newborn ,Hospitals ,Private practice ,Sociology of Development and Change ,Conflict management ,Sociologie van Ontwikkeling en Verandering ,business ,Research Article ,Specialization - Abstract
Background and Objectives: This paper analyses why and how conflicts occur and their influence on doctors and nurse-anaesthetists' motivation in the provision of maternal and neonatal health care in a specialist hospital.Methodology: The study used ethnographic methods including participant observation, conversation and in-depth interviews over eleven months in a specialist referral hospital in Ghana. Qualitative analysis software Nvivo 8 was used for coding and analysis of data. Main themes identified in the analysis form the basis for interpreting and reporting study findings.Ethics Statement: Ethical clearance was obtained from the Ghana Health Service Ethics Review board (approval number GHS-ERC:06/01/12) and from the University of Wageningen. Written consent was obtained from interview participants, while verbal consent was obtained for conversations. To protect the identity of the hospital and research participants pseudonyms are used in the article and the part of Ghana in which the study was conducted is not mentioned.Results: Individual characteristics, interpersonal and organisational factors contributed to conflicts. Unequal power relations and distrust relations among doctors and nurse-anaesthetists affected how they responded to conflicts. Responses to conflicts including forcing, avoiding, accommodating and compromising contributed to persistent conflicts, which frustrated and demotivated doctors and nurse-anaesthetists. Demotivated workers exhibited poor attitudes in collaborating with co-workers in the provision of maternal and neonatal care, which sometimes led to poor health worker response to client care, consequently compromising the hospital's goal of providing quality health care to clients.Conclusion: To improve health care delivery in health facilities in Ghana, health managers and supervisors need to identify conflicts as an important phenomenon that should be addressed whenever they occur. Effective mechanisms including training managers and health workers on conflict management should be put in place. Additionally promoting communication and interaction among health workers can foster team spirit. Also resolving conflicts using the collaborating response may help to create a conducive work environment that will promote healthy work relations, which can facilitate the delivery of quality maternal and neonatal health care. However, such an approach requires that unequal power relations, which is a root cause of the conflicts is addressed.
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- 2015
21. How did the media report on the Great East Japan Earthquake? Objectivity and emotionality seeking in Japanese media coverage
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Kiyotake Okawa, Chie Kanagawa, Yukiko Uchida, Akira Harada, Ako Takenishi, and Hiromi Yabuno
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Multidisciplinary ,business.industry ,media_common.quotation_subject ,lcsh:R ,Emotions ,Media studies ,lcsh:Medicine ,Media coverage ,Newspaper ,Feeling ,Japan ,Content analysis ,Emotionality ,Tsunamis ,Earthquakes ,Medicine ,lcsh:Q ,Mass Media ,lcsh:Science ,Objectivity (science) ,business ,News media ,media_common ,Mass media ,Research Article - Abstract
The Great East Japan Earthquake was a tragic event requiring critical media involvement. Since the media played an important role in conveying factual information, journalists expressed feeling that it was difficult to guarantee the objectivity of their coverage. As media coverage constructs a socio-culturally shared reality among its audience, an examination of the objectivity and emotionality of the contents of the news coverage is needed. In Study 1, we conducted an exploratory content analysis of TV and newspaper coverage from the six month period following the March 11, 2011 disaster, finding that the news media generally reported neutral and objective factual information about the event, with emotionality shown only in the commentary. In order to examine how media coverage was constructed and evaluated by journalists, in Study 2 we conducted an online survey of 115 journalists working for mass media organizations. We found that that the journalists' orientations tended to be more objective than emotional, which is consistent with the findings of Study 1. However, their evaluations of the objectivity of the published articles were low, especially for the coverage of the nuclear power plant accident, which was an accident of an unprecedented nature. The negative emotions that journalists experienced during their investigations negatively affected subsequent evaluations of the objectivity of their reporting.
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- 2014
22. Increase in ultrasonic intensity of blood speckle across moderate coronary artery stenosis is an independent predictor of functional coronary artery stenosis measured by fractional flow reserve: pilot study
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Takaaki Senbonmatsu, Shintaro Nakano, Takatoshi Kasai, Junya Ako, Jun Tanno, Shigeyuki Nishimura, and Sunao Nakamura
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Male ,medicine.medical_specialty ,lcsh:Medicine ,Hyperemia ,Pilot Projects ,Fractional flow reserve ,Coronary Angiography ,Angina ,Heart Rate ,Internal medicine ,Intravascular ultrasound ,medicine ,Humans ,lcsh:Science ,Aged ,Ultrasonography ,Multidisciplinary ,Ejection fraction ,medicine.diagnostic_test ,business.industry ,lcsh:R ,Coronary Stenosis ,Stroke Volume ,Blood flow ,Middle Aged ,medicine.disease ,Coronary Vessels ,Coronary arteries ,Fractional Flow Reserve, Myocardial ,Stenosis ,medicine.anatomical_structure ,Cardiology ,lcsh:Q ,Female ,business ,Artery ,Research Article - Abstract
Background and Aims The degree of coronary artery stenosis should be assessed both anatomically and functionally. We observed that the intensity of blood speckle (IBS) on intravascular ultrasound (IVUS) is low proximal to a coronary artery stenosis, and high distal to the stenosis. We defined step-up IBS as the distal minus the proximal IBS, and speculated that this new parameter could be used for the functional evaluation of stenosis on IVUS. The aims of this study were to assess the relationships between step-up IBS and factors that affect coronary blood flow, and between step-up IBS and fractional flow reserve (FFR). Methods and Results This study enrolled 36 consecutive patients with angina who had a single moderate stenosis in the left anterior descending artery. All patients were evaluated by integrated backscatter IVUS and intracoronary pressure measurements. FFR was calculated from measurements using a coronary pressure wire during hyperemia. Conventional gray-scale IVUS images were recorded, and integrated backscatter was measured in three cross-sectional slices proximal and distal to the stenosis. Step-up IBS was calculated as (mean distal integrated backscatter value) − (mean proximal integrated backscatter value). Stepwise multiple linear regression analysis showed that the heart rate (r = 0.45, P = 0.005), ejection fraction (r = −0.39, P = 0.01), and hemoglobin level (r = −0.32, P = 0.04) were independently correlated with step-up IBS, whereas proximal and distal IBS were not associated with these factors. There was a strong inverse correlation between step-up IBS and FFR (r = −0.84, P < 0.001), which remained significant on stepwise multiple linear regression analysis. Conclusions The newly defined parameter of step-up IBS is potentially useful for the functional assessment of coronary artery stenosis.
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- 2014
23. High Avidity Antibodies to Full-Length VAR2CSA Correlate with Absence of Placental Malaria
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Josephine Fogako, Marion Avril, Yeung Lo Tutterrow, Diane Wallace Taylor, Ian Pagano, Ali Salanti, Rose G. F. Leke, Simon Ako, and Joseph D. Smith
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Anatomy and Physiology ,High avidity ,Antibody Affinity ,lcsh:Medicine ,Epitope ,0302 clinical medicine ,Pregnancy ,Immune Physiology ,Malaria, Falciparum ,lcsh:Science ,Immune Response ,0303 health sciences ,Multidisciplinary ,Obstetrics and Gynecology ,3. Good health ,Plasmodium Falciparum ,medicine.anatomical_structure ,Infectious Diseases ,Medicine ,Female ,Antibody ,Research Article ,Adult ,030231 tropical medicine ,Immunoglobulins ,Antigens, Protozoan ,Biology ,Antibodies ,03 medical and health sciences ,Antigen ,Immunity ,Placenta ,medicine ,Parasitic Diseases ,Humans ,Immunity to Infections ,030304 developmental biology ,lcsh:R ,Immune Defense ,medicine.disease ,Malaria ,Pregnancy Complications ,Pregnancy Complications, Parasitic ,Immunology ,Humoral Immunity ,biology.protein ,lcsh:Q ,Clinical Immunology - Abstract
VAR2CSA mediates sequestration of Plasmodium falciparum-infected erythrocytes in the placenta, increasing the risk of poor pregnancy outcomes. Naturally acquired antibodies (Ab) to placental parasites at delivery have been associated with improved pregnancy outcomes, but Ab levels and how early in pregnancy Ab must be present in order to eliminate placental parasites before delivery remains unknown. Antibodies to individual Duffy-binding like domains of VAR2CSA have been studied, but the domains lack many of the conformational epitopes present in full-length VAR2CSA (FV2). Thus, the purpose of this study was to describe the acquisition of Ab to FV2 in women residing in high and low transmission areas and determine how Ab levels during pregnancy correlate with clearance of placental parasites. Plasma samples collected monthly throughout pregnancy from pregnant women living in high and low transmission areas in Cameroon were evaluated for Ab to FV2 and the proportion of high avidity Ab (i.e., Ab that remain bound in the presence of 3M NH(4)SCN) was assessed. Ab levels and proportion of high avidity Ab were compared between women with placental malaria (PM(+)) and those without (PM(-)) at delivery. Results showed that PM(-) women had significantly higher Ab levels (p = 0.0047) and proportion of high avidity Ab (p = 0.0009) than PM(+) women throughout pregnancy. Specifically, women with moderate to high Ab levels (>5,000 MFI) and those with ≥ 35% high avidity Ab at 5-6 months were found to have 2.3 (95% CI, 1.0-4.9) and 7.6-fold (p = 0.0013, 95% CI: 1.2-50.0) reduced risk of placental malaria, respectively. These data show that high levels of Ab to FV2, particularly those with high avidity for FV2, produced by mid-pregnancy are important in clearing parasites from the placenta. Both high Ab levels and proportion of high avidity Ab to FV2 may serve as correlates of protection for assessing immunity against placental malaria.
- Published
- 2012
24. 'I Used to Fight with Them but Now I Have Stopped!': Conflict and Doctor-Nurse-Anaesthetists' Motivation in Maternal and Neonatal Care Provision in a Specialist Referral Hospital
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Aberese-Ako, Matilda, primary, Agyepong, Irene Akua, additional, Gerrits, Trudie, additional, and Van Dijk, Han, additional
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- 2015
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25. Early Mortality during Initial Treatment of Tuberculosis in Patients Co-Infected with HIV at the Yaoundé Central Hospital, Cameroon: An 8-Year Retrospective Cohort Study (2006-2013)
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Bigna, Jean Joel R., primary, Noubiap, Jean Jacques N., additional, Agbor, Ako A., additional, Plottel, Claudia S., additional, Billong, Serge Clotaire, additional, Ayong, André Patrick R., additional, and Koulla-Shiro, Sinata, additional
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- 2015
- Full Text
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26. How Did the Media Report on the Great East Japan Earthquake? Objectivity and Emotionality Seeking in Japanese Media Coverage
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Uchida, Yukiko, primary, Kanagawa, Chie, additional, Takenishi, Ako, additional, Harada, Akira, additional, Okawa, Kiyotake, additional, and Yabuno, Hiromi, additional
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- 2015
- Full Text
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27. Increase in Ultrasonic Intensity of Blood Speckle across Moderate Coronary Artery Stenosis Is an Independent Predictor of Functional Coronary Artery Stenosis Measured by Fractional Flow Reserve: Pilot Study
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Tanno, Jun, primary, Nakano, Shintaro, additional, Kasai, Takatoshi, additional, Ako, Junya, additional, Nakamura, Sunao, additional, Senbonmatsu, Takaaki, additional, and Nishimura, Shigeyuki, additional
- Published
- 2015
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28. Factors Associated with Death during Tuberculosis Treatment of Patients Co-Infected with HIV at the Yaoundé Central Hospital, Cameroon: An 8-Year Hospital-Based Retrospective Cohort Study (2006–2013)
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Agbor, Ako A., primary, Bigna, Jean Joel R., additional, Billong, Serges Clotaire, additional, Tejiokem, Mathurin Cyrille, additional, Ekali, Gabriel L., additional, Plottel, Claudia S., additional, Noubiap, Jean Jacques N., additional, Abessolo, Hortence, additional, Toby, Roselyne, additional, and Koulla-Shiro, Sinata, additional
- Published
- 2014
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29. Early Mortality during Initial Treatment of Tuberculosis in Patients Co-Infected with HIV at the Yaoundé Central Hospital, Cameroon: An 8-Year Retrospective Cohort Study (2006-2013)
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Sinata Koulla-Shiro, Jean Jacques Noubiap, Jean Joel Bigna, Serge Clotaire Billong, André Patrick R. Ayong, Ako A. Agbor, Claudia S. Plottel, Department of Medicine, and Faculty of Health Sciences
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Adult ,Male ,Pediatrics ,medicine.medical_specialty ,Tuberculosis ,Population ,lcsh:Medicine ,Blood counts ,Risk Factors ,Case fatality rate ,medicine ,Humans ,Tuberculosis diagnosis and management ,Cameroon ,Hospital Mortality ,lcsh:Science ,education ,Retrospective Studies ,education.field_of_study ,Multidisciplinary ,Death rates ,Coinfection ,business.industry ,Incidence ,Incidence (epidemiology) ,Mortality rate ,lcsh:R ,HIV ,HIV diagnosis and management ,Retrospective cohort study ,Odds ratio ,Middle Aged ,medicine.disease ,Hospitals ,Antiretroviral therapy ,Female ,lcsh:Q ,business ,Research Article ,HIV infections - Abstract
BACKGROUND: Understanding contributors to mortality during the initial phase of tuberculosis (TB) treatment in patients co-infected with HIV would guide targeted interventions to improve survival. The aim of this study was to ascertain the incidence of death during the initial 2 months (new cases) and 3 months (retreatment cases) of TB treatment and to assess correlates of mortality in HIV co-infected patients. METHODS: We conducted a hospital-based retrospective cohort study from January 2006 to December 2013 at Yaoundé Central Hospital, Cameroon. We reviewed medical records to identify co-infected TB/HIV inpatients aged 15 years and older who died during TB treatment. Death was defined as any death occurring during TB treatment, as per World Health Organization recommendations. We collected socio-demographic, clinical and laboratory data. We conducted multivariable logistic binary regression analysis to identify factors associated with death during the intensive phase of TB treatment. Magnitudes of associations were expressed by adjusted odds ratio (a OR ) with 95% confidence interval. A p value < 0.05 was considered statistically significant. RESULTS: The 99 patients enrolled had a mean age of 39.5 (standard deviation 10.9) years and 53% were male. Patients were followed for 276.3 person-months of observation (PMO). Forty nine patients were died during intensive phase of TB treatment. Death incidence during the intensive phase of TB treatment was 32.2 per 100 PMO. Having a non-AIDS comorbidity (a OR 2.47, 95%CI 1.22-5.02, p = 0.012), having extra-pulmonary TB (a OR 1.89, 95%CI 1.05-3.43, p = 0.035), and one year increase in duration of known HIV infection (aOR 1.23, 95%CI 1.004-1.49) were independently associated with death during the intensive phase of TB treatment. CONCLUSIONS: Mortality incidence during intensive phase of TB treatment was high among TB/HIV co-infected patients during TB treatment; and strongly associated with extra pulmonary TB suggesting advanced stage of immunosuppression and non-AIDS comorbidities. Early HIV diagnosis and care and good management of non-comorbidities can reduce this incidence.
- Published
- 2015
30. Factors Associated with Death during Tuberculosis Treatment of Patients Co-Infected with HIV at the Yaoundé Central Hospital, Cameroon: An 8-Year Hospital-Based Retrospective Cohort Study (2006–2013)
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Hortence Abessolo, Mathurin Cyrille Tejiokem, Jean Jacques Noubiap, Sinata Koulla-Shiro, Ako A. Agbor, Jean Joel Bigna, Serges Clotaire Billong, Roselyne Toby, Gabriel L. Ekali, and Claudia S. Plottel
- Subjects
Bacterial Diseases ,Male ,Pediatrics ,Epidemiology ,Antitubercular Agents ,lcsh:Medicine ,Plant Science ,Comorbidity ,Cohort Studies ,Cause of Death ,Case fatality rate ,Medicine ,Cameroon ,Treatment Failure ,lcsh:Science ,Cause of death ,education.field_of_study ,Multidisciplinary ,Coinfection ,Mortality rate ,Middle Aged ,Hospitals ,Infectious Diseases ,HIV epidemiology ,Female ,Research Article ,Cohort study ,Adult ,medicine.medical_specialty ,Tuberculosis ,Adolescent ,Population ,Disease Surveillance ,Opportunistic Infections ,Infectious Disease Epidemiology ,Young Adult ,Trimethoprim, Sulfamethoxazole Drug Combination ,Humans ,education ,Aged ,Retrospective Studies ,Medicine and health sciences ,AIDS-Related Opportunistic Infections ,business.industry ,Clinical epidemiology ,lcsh:R ,Biology and Life Sciences ,Retrospective cohort study ,Plant Pathology ,Tropical Diseases ,medicine.disease ,Infectious Disease Surveillance ,lcsh:Q ,business - Abstract
Background Contributors to fatal outcomes in TB/HIV co-infected patients actively undergoing TB treatment are poorly characterized. The aim was to assess factors associated with death in TB/HIV co-infected patients during the initial 6 months of TB treatment. Methods We conducted a hospital-based retrospective cohort study from January 2006 to December 2013 at the Yaoundé Central Hospital, Cameroon. We reviewed medical records to identify hospitalized co-infected TB/HIV patients aged 15 years and older. Death was defined as any death occurring during TB treatment, as per the World Health Organization's recommendations. We conducted logistic regression analysis to identify factors associated with a fatal outcome. Magnitudes of associations were expressed by adjusted odds ratio (aOR) with 95% confidence interval. Results The 337 patients enrolled had a mean age of 39.3 (standard deviation 10.3) years and 54.3% were female. TB treatment outcomes were distributed as follows: 205 (60.8%) treatment success, 99 (29.4%) deaths, 18 (5.3%) not evaluated, 14 (4.2%) lost to follow-up, and 1 (0.3%) failed. After exclusion of patients lost to follow-up and not evaluated, death in TB/HIV co-infected patients during TB treatment was associated with a TB diagnosis made before 2010 (aOR = 2.50 [1.31–4.78]; p = 0.006), the presence of other AIDS-defining diseases (aOR = 2.73 [1.27–5.86]; p = 0.010), non-AIDS comorbidities (aOR = 3.35 [1.37–8.21]; p = 0.008), not receiving cotrimoxazole prophylaxis (aOR = 3.61 [1.71–7.63]; p = 0.001), not receiving antiretroviral therapy (aOR = 2.45 [1.18–5.08]; p = 0.016), and CD4 cells count
- Published
- 2014
31. Adsorption of Cellular Proteins to Polyelectrolyte-Functionalized Gold Nanorods: A Mechanism for Nanoparticle Regulation of Cell Phenotype?
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Sisco, Patrick N., primary, Wilson, Christopher G., additional, Chernak, Davin, additional, Clark, Jessica C., additional, Grzincic, Elissa M., additional, Ako-Asare, Kayla, additional, Goldsmith, Edie C., additional, and Murphy, Catherine J., additional
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- 2014
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32. Adsorption of Cellular Proteins to Polyelectrolyte-Functionalized Gold Nanorods: A Mechanism for Nanoparticle Regulation of Cell Phenotype?
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Elissa M. Grzincic, Davin J. Chernak, Christopher G. Wilson, Catherine J. Murphy, Kayla Ako-Asare, Edie C. Goldsmith, Jessica C. Clark, and Patrick N. Sisco
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Proteomics ,lcsh:Medicine ,Nanoparticle ,Biochemistry ,Polyethylene Glycols ,Rats, Sprague-Dawley ,Electrolytes ,Morphogenesis ,Nanotechnology ,lcsh:Science ,Spectrometric Identification of Proteins ,Nanotubes ,Multidisciplinary ,Chemistry ,Applied Chemistry ,Cell Differentiation ,Polyelectrolyte ,Extracellular Matrix ,Phenotype ,medicine.anatomical_structure ,Cytochemistry ,Heart Development ,Electrophoresis, Polyacrylamide Gel ,Nanorod ,Type I collagen ,Research Article ,Surface Properties ,Materials Science ,Biomaterials ,Adsorption ,Collagen network ,medicine ,Animals ,Fibroblast ,Biology ,Nanomaterials ,lcsh:R ,Proteins ,Fibroblasts ,Molecular biology ,Extracellular Matrix Composition ,Rats ,Quaternary Ammonium Compounds ,Chemical Properties ,Gene Expression Regulation ,Bionanotechnology ,Biophysics ,Nanoparticles ,lcsh:Q ,Cattle ,Gold ,Polyethylenes ,Developmental Biology ,Protein adsorption - Abstract
Cell behavior in the presence of nanomaterials is typically explored through simple viability assays, but there is mounting evidence that nanomaterials can have more subtle effects on a variety of cellular functions. Previously our lab demonstrated that gold nanorods functionalized with polyelectrolyte multi-layers inhibited rat cardiac fibroblast-mediated remodeling of type I collagen scaffolds by altering fibroblast phenotype and the mechanical properties of the collagen network. In this work, we examine a possible mechanism for these effects: adsorption of cellular proteins by the nanorods. Mass spectrometric and gel electrophoresis of media collected from cultured cells suggests that a number of proteins, some of which mediate cell-cell and cell-matrix interactions, adsorb onto the surface of these nanoparticles in vitro. Polyethylene glycol coating of the nanorods largely mitigates protein adsorption and fibroblast-mediated collagen remodeling. These results suggest that adsorption of proteins by nanorods could have a significant effect on cell functions, including fibroblast-mediated matrix remodeling.
- Published
- 2014
33. High Avidity Antibodies to Full-Length VAR2CSA Correlate with Absence of Placental Malaria
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Tutterrow, Yeung Lo, primary, Salanti, Ali, additional, Avril, Marion, additional, Smith, Joseph D., additional, Pagano, Ian S., additional, Ako, Simon, additional, Fogako, Josephine, additional, Leke, Rose G. F., additional, and Taylor, Diane Wallace, additional
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- 2012
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34. Surveillance of Travellers: An Additional Tool for Tracking Antimalarial Drug Resistance in Endemic Countries.
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Gharbi, Myriam, Flegg, Jennifer A., Pradines, Bruno, Berenger, Ako, Ndiaye, Magatte, Djimdé, Abdoulaye A., Roper, Cally, Hubert, Véronique, Kendjo, Eric, Venkatesan, Meera, Brasseur, Philippe, Gaye, Oumar, Offianan, André T., Penali, Louis, Le Bras, Jacques, Guérin, Philippe J., and Study, Members of the French National Reference Center for Imported Malaria
- Subjects
TRAVELERS ,DRUG resistance ,ANTIMALARIALS ,DRUG therapy for malaria ,ARTEMISININ ,MEDICAL research ,MEDICINE information services - Abstract
Introduction: There are growing concerns about the emergence of resistance to artemisinin-based combination therapies (ACTs). Since the widespread adoption of ACTs, there has been a decrease in the systematic surveillance of antimalarial drug resistance in many malaria-endemic countries. The aim of this work was to test whether data on travellers returning from Africa with malaria could serve as an additional surveillance system of local information sources for the emergence of drug resistance in endemic-countries. Methodology: Data were collected from travellers with symptomatic Plasmodium falciparum malaria returning from Senegal (n = 1,993), Mali (n = 2,372), Cote d’Ivoire (n = 4,778) or Cameroon (n = 3,272) and recorded in the French Malaria Reference Centre during the period 1996–2011. Temporal trends of the proportion of parasite isolates that carried the mutant genotype, pfcrt 76T, a marker of resistance to chloroquine (CQ) and pfdhfr 108N, a marker of resistance to pyrimethamine, were compared for travellers and within-country surveys that were identified through a literature review in PubMed. The in vitro response to CQ was also compared between these two groups for parasites from Senegal. Results: The trends in the proportion of parasites that carried pfcrt 76T, and pfdhfr 108N, were compared for parasites from travellers and patients within-country using the slopes of the curves over time; no significant differences in the trends were found for any of the 4 countries. These results were supported by in vitro analysis of parasites from the field in Senegal and travellers returning to France, where the trends were also not significantly different. Conclusion: The results have not shown different trends in resistance between parasites derived from travellers or from parasites within-country. This work highlights the value of an international database of drug responses in travellers as an additional tool to assess the emergence of drug resistance in endemic areas where information is limited. [ABSTRACT FROM AUTHOR]
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- 2013
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35. Influence of Green Human Resource Management on firm's environmental performance: Green Employee Empowerment as a mediating factor.
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Philip Adu Sarfo, Jianhua Zhang, George Nyantakyi, Francis Ako Lassey, Emmanuel Bruce, and Ophelia Amankwah
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Medicine ,Science - Abstract
This research aimed to investigate the mediating function of Green Employee Empowerment (GEE) in the relationship between Green Human Resource Management practices (GHRM) and the environmental performance of small and medium-sized enterprises (SMEs) in Ghana, drawing on the Ability-Motivation-Opportunity (AMO) theory. This study assessed the hypotheses in the established research model using structural equation modeling based on data collected from 320 participants from small and medium-sized firms in Ghana. The study's results revealed that GHRM practices were significantly correlated with the firm's environmental performance. The study found significant GHRM's indirect consequences on environmental performance through GEE in all models examined. These findings suggest that GEE plays a crucial role in translating the impact of GHRM practices into improved environmental performance. The study overlooked other potential mediators or moderators in the relationship between GHRM practices and environmental performance, focusing on GEE. To better understand the complex dynamics behind GHRM techniques' environmental performance, future research might examine business culture, leadership style, and employee sustainability attitudes.
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- 2024
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36. The socio-economic and health effects of COVID-19 among rural and urban-slum dwellers in Ghana: A mixed methods approach.
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Matilda Aberese-Ako, Mustapha Immurana, Maxwell Ayindenaba Dalaba, Fidelis E Y Anumu, Anthony Ofosu, and Margaret Gyapong
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Medicine ,Science - Abstract
BackgroundVulnerable populations such as rural and urban-slum dwellers are more likely to suffer greatly from the deleterious effects of the novel Coronavirus disease 2019 (COVID-19). However, in Ghana, most COVID-19 mitigating packages are not focused on vulnerable populations.MethodsConcurrent mixed methods design was used to examine the socio-economic and health effects of COVID-19 among rural and urban-slum dwellers in Ghana. Four hundred respondents were sampled for the quantitative arm of the study, while 46 In-depth Interviews (IDIs) were conducted with community members and government officials. Sixty-four community members participated in Focus Group Discussions (FGDs) and non-participant observation was carried out for three months. Quantitative data were analysed using frequencies, percentages, Pearson Chi2 and ordered logistic regression. Interviews were recorded using digital recorders and later transcribed. Transcribed data (IDIs, FGDs) and observation notes were uploaded onto a computer and transferred to qualitative software NVivo 12 to support thematic coding and analysis.ResultsMajority of the respondents confirmed the deleterious socio-economic and health effects of COVID-19 on jobs and prices of food. Other effects were fear of visiting a health facility even when unwell, depression and anxiety. Young people (18-32 years), males, urban-slum dwellers, married individuals, the employed and low-income earners (those who earn GHC10/$1.7 to GHC100/ $17), were more likely to suffer from the socio-economic and health effects of COVID-19. Urban-slum dwellers coped by relying on family and social networks for food and other basic necessities, while rural dwellers created locally appropriate washing aids to facilitate hand washing in the rural communities.ConclusionCOVID-19 and the government's mitigation measures had negative socio-economic and health effects on vulnerable communities. While vulnerable populations should be targeted for the government's COVID-19 mitigating packages, special attention should be given to young people (18-32 years), males, urban-slum dwellers, married individuals and low-income earners. Communities should be encouraged to maintain coping strategies adopted even after COVID-19.
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- 2022
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37. Post-intensive care syndrome as a predictor of mortality in patients with critical illness: A cohort study.
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Naoya Yanagi, Kentaro Kamiya, Nobuaki Hamazaki, Ryota Matsuzawa, Kohei Nozaki, Takafumi Ichikawa, Thomas S Valley, Takeshi Nakamura, Masashi Yamashita, Emi Maekawa, Tomotaka Koike, Minako Yamaoka-Tojo, Masayasu Arai, Atsuhiko Matsunaga, and Junya Ako
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Medicine ,Science - Abstract
IntroductionThe post-intensive care syndrome (PICS) encompasses multiple, diverse conditions, such as physical disability, cognitive impairment, and depression. We sought to evaluate whether conditions within PICS have similar associations with mortality among survivors of critical illness.Materials and methodsIn this retrospective cohort study, we identified 248 critically ill patients with intensive care unit stay ≥72 hours, who underwent PICS evaluation. Patients with disability in activities of daily living, cognitive impairment, or depression before hospitalization were excluded. We defined PICS using established measures of physical disability (usual gait speed), cognitive impairment (Mini-Cog test), and depression (Patient Health Questionnaire-2) at hospital discharge. The endpoint was all-cause mortality.ResultsPatients had a median age of 69 years and Acute Physiology and Chronic Health Evaluation (APACHE) II score of 16. One hundred thirty-two patients were classified as having PICS, and 19 patients died. 81/248 (34%) patients had physical disability, 42/248 (19%) had cognitive impairment, and 44/248 (23%) had depression. After adjusting for covariates on multivariable Cox regression analyses, PICS was significantly associated with all-cause mortality (hazard ratio [HR] 3.78, 95% confidence interval [CI] 1.02 - 13.95; P = 0.046). However, the association between PICS and all-cause mortality was related to physical disability and cognitive impairment (P = 0.001 and P = 0.027, respectively), while depression was not (P = 0.623).ConclusionWhile PICS as a syndrome has been useful in gaining attention to the sequelae of critical illness, its relationship with long-term mortality is driven largely by physical disability and cognitive impairment and not depression.
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- 2021
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38. Managing urban solid waste in Ghana: Perspectives and experiences of municipal waste company managers and supervisors in an urban municipality.
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Samuel Yaw Lissah, Martin Amogre Ayanore, John K Krugu, Matilda Aberese-Ako, and Robert A C Ruiter
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Medicine ,Science - Abstract
Increased population growth and rapid urbanization have resulted in the generation of large quantities of solid waste across major urban cities in Ghana, outstripping local authorities' ability to manage and dispose of waste in a sanitary manner. This study explored the perspectives and experiences of municipal waste company managers and supervisors in the Ho municipality of Ghana on solid waste management practices. A qualitative inquiry was conducted by adopting a phenomenological approach, using in-depth interviews and focus group discussions for data collection. A total of 35 participants, made up of 12 managers and 23 supervisors took part in the study. Transcribed data were imported into NVivo 11.0 software for coding. Content analysis was applied to analyze all transcribed data using processes of induction and deduction. The results showed that organizational capacity, resources, and expertise; community factors such as socio-cultural beliefs and a low sense of responsibility towards solid waste management among urban residents; contextual factors such as regulations, and weak enforcement all influence and shape the level of efficiency and effectiveness of solid waste management practices in the study setting. The findings suggest that policy frameworks and procedures implemented to curb poor urban waste management practices should be systematic and thorough in order to tackle the issue of solid waste in the study setting and Ghana in general. The nature of the identified issues and challenges requires multidimensional and multilevel interventions to provide sustainable solutions for managing urban waste in Ghana.
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- 2021
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39. Effect of cardiac rehabilitation on cognitive function in elderly patients with cardiovascular diseases.
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Kazuhiro Fujiyoshi, Yoshiyasu Minami, Minako Yamaoka-Tojo, Toshiki Kutsuna, Shinichi Obara, Akihiro Aoyama, and Junya Ako
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Medicine ,Science - Abstract
BACKGROUND:Cognitive function is an important factor for secondary prevention in elderly patients with cardiovascular diseases. The objective of this study was to evaluate the impact of cardiac rehabilitation (CR) on the improvement of cognitive function. METHODS:A total of 66 consecutive elderly patients (≥70 years old) with cardiovascular diseases were prospectively enrolled. The change in cognitive function during 6 months was compared between the patients with monthly CR (at least once per month; n = 27) and those without monthly CR (n = 39). Cognitive function was evaluated using the Mini-mental State Examination (MMSE) and Frontal Assessment Battery (FAB). RESULTS:There was no significant difference in baseline characteristics between the 2 groups. The change in the MMSE score was significantly greater in patients with monthly CR than in those without monthly CR (2.3 ± 0.4 vs. -0.1 ± 0.3 points; p
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- 2020
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40. How did the media report on the Great East Japan Earthquake? Objectivity and emotionality seeking in Japanese media coverage.
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Yukiko Uchida, Chie Kanagawa, Ako Takenishi, Akira Harada, Kiyotake Okawa, and Hiromi Yabuno
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Medicine ,Science - Abstract
The Great East Japan Earthquake was a tragic event requiring critical media involvement. Since the media played an important role in conveying factual information, journalists expressed feeling that it was difficult to guarantee the objectivity of their coverage. As media coverage constructs a socio-culturally shared reality among its audience, an examination of the objectivity and emotionality of the contents of the news coverage is needed. In Study 1, we conducted an exploratory content analysis of TV and newspaper coverage from the six month period following the March 11, 2011 disaster, finding that the news media generally reported neutral and objective factual information about the event, with emotionality shown only in the commentary. In order to examine how media coverage was constructed and evaluated by journalists, in Study 2 we conducted an online survey of 115 journalists working for mass media organizations. We found that that the journalists' orientations tended to be more objective than emotional, which is consistent with the findings of Study 1. However, their evaluations of the objectivity of the published articles were low, especially for the coverage of the nuclear power plant accident, which was an accident of an unprecedented nature. The negative emotions that journalists experienced during their investigations negatively affected subsequent evaluations of the objectivity of their reporting.
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- 2015
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41. Early Mortality during Initial Treatment of Tuberculosis in Patients Co-Infected with HIV at the Yaoundé Central Hospital, Cameroon: An 8-Year Retrospective Cohort Study (2006-2013).
- Author
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Jean Joel R Bigna, Jean Jacques N Noubiap, Ako A Agbor, Claudia S Plottel, Serge Clotaire Billong, André Patrick R Ayong, and Sinata Koulla-Shiro
- Subjects
Medicine ,Science - Abstract
Understanding contributors to mortality during the initial phase of tuberculosis (TB) treatment in patients co-infected with HIV would guide targeted interventions to improve survival. The aim of this study was to ascertain the incidence of death during the initial 2 months (new cases) and 3 months (retreatment cases) of TB treatment and to assess correlates of mortality in HIV co-infected patients.We conducted a hospital-based retrospective cohort study from January 2006 to December 2013 at Yaoundé Central Hospital, Cameroon. We reviewed medical records to identify co-infected TB/HIV inpatients aged 15 years and older who died during TB treatment. Death was defined as any death occurring during TB treatment, as per World Health Organization recommendations. We collected socio-demographic, clinical and laboratory data. We conducted multivariable logistic binary regression analysis to identify factors associated with death during the intensive phase of TB treatment. Magnitudes of associations were expressed by adjusted odds ratio (aOR) with 95% confidence interval. A p value < 0.05 was considered statistically significant.The 99 patients enrolled had a mean age of 39.5 (standard deviation 10.9) years and 53% were male. Patients were followed for 276.3 person-months of observation (PMO). Forty nine patients were died during intensive phase of TB treatment. Death incidence during the intensive phase of TB treatment was 32.2 per 100 PMO. Having a non-AIDS comorbidity (aOR 2.47, 95%CI 1.22-5.02, p = 0.012), having extra-pulmonary TB (aOR 1.89, 95%CI 1.05-3.43, p = 0.035), and one year increase in duration of known HIV infection (aOR 1.23, 95%CI 1.004-1.49) were independently associated with death during the intensive phase of TB treatment.Mortality incidence during intensive phase of TB treatment was high among TB/HIV co-infected patients during TB treatment; and strongly associated with extra pulmonary TB suggesting advanced stage of immunosuppression and non-AIDS comorbidities. Early HIV diagnosis and care and good management of non-comorbidities can reduce this incidence.
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- 2015
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42. Increase in ultrasonic intensity of blood speckle across moderate coronary artery stenosis is an independent predictor of functional coronary artery stenosis measured by fractional flow reserve: pilot study.
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Jun Tanno, Shintaro Nakano, Takatoshi Kasai, Junya Ako, Sunao Nakamura, Takaaki Senbonmatsu, and Shigeyuki Nishimura
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Medicine ,Science - Abstract
BACKGROUND AND AIMS:The degree of coronary artery stenosis should be assessed both anatomically and functionally. We observed that the intensity of blood speckle (IBS) on intravascular ultrasound (IVUS) is low proximal to a coronary artery stenosis, and high distal to the stenosis. We defined step-up IBS as the distal minus the proximal IBS, and speculated that this new parameter could be used for the functional evaluation of stenosis on IVUS. The aims of this study were to assess the relationships between step-up IBS and factors that affect coronary blood flow, and between step-up IBS and fractional flow reserve (FFR). METHODS AND RESULTS:This study enrolled 36 consecutive patients with angina who had a single moderate stenosis in the left anterior descending artery. All patients were evaluated by integrated backscatter IVUS and intracoronary pressure measurements. FFR was calculated from measurements using a coronary pressure wire during hyperemia. Conventional gray-scale IVUS images were recorded, and integrated backscatter was measured in three cross-sectional slices proximal and distal to the stenosis. Step-up IBS was calculated as (mean distal integrated backscatter value) - (mean proximal integrated backscatter value). Stepwise multiple linear regression analysis showed that the heart rate (r = 0.45, P = 0.005), ejection fraction (r = -0.39, P = 0.01), and hemoglobin level (r = -0.32, P = 0.04) were independently correlated with step-up IBS, whereas proximal and distal IBS were not associated with these factors. There was a strong inverse correlation between step-up IBS and FFR (r = -0.84, P < 0.001), which remained significant on stepwise multiple linear regression analysis. CONCLUSIONS:The newly defined parameter of step-up IBS is potentially useful for the functional assessment of coronary artery stenosis.
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- 2015
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43. Adsorption of cellular proteins to polyelectrolyte-functionalized gold nanorods: a mechanism for nanoparticle regulation of cell phenotype?
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Patrick N Sisco, Christopher G Wilson, Davin Chernak, Jessica C Clark, Elissa M Grzincic, Kayla Ako-Asare, Edie C Goldsmith, and Catherine J Murphy
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Medicine ,Science - Abstract
Cell behavior in the presence of nanomaterials is typically explored through simple viability assays, but there is mounting evidence that nanomaterials can have more subtle effects on a variety of cellular functions. Previously our lab demonstrated that gold nanorods functionalized with polyelectrolyte multi-layers inhibited rat cardiac fibroblast-mediated remodeling of type I collagen scaffolds by altering fibroblast phenotype and the mechanical properties of the collagen network. In this work, we examine a possible mechanism for these effects: adsorption of cellular proteins by the nanorods. Mass spectrometric and gel electrophoresis of media collected from cultured cells suggests that a number of proteins, some of which mediate cell-cell and cell-matrix interactions, adsorb onto the surface of these nanoparticles in vitro. Polyethylene glycol coating of the nanorods largely mitigates protein adsorption and fibroblast-mediated collagen remodeling. These results suggest that adsorption of proteins by nanorods could have a significant effect on cell functions, including fibroblast-mediated matrix remodeling.
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- 2014
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44. Factors associated with death during tuberculosis treatment of patients co-infected with HIV at the Yaoundé Central Hospital, Cameroon: an 8-year hospital-based retrospective cohort study (2006-2013).
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Ako A Agbor, Jean Joel R Bigna, Serges Clotaire Billong, Mathurin Cyrille Tejiokem, Gabriel L Ekali, Claudia S Plottel, Jean Jacques N Noubiap, Hortence Abessolo, Roselyne Toby, and Sinata Koulla-Shiro
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Medicine ,Science - Abstract
Contributors to fatal outcomes in TB/HIV co-infected patients actively undergoing TB treatment are poorly characterized. The aim was to assess factors associated with death in TB/HIV co-infected patients during the initial 6 months of TB treatment.We conducted a hospital-based retrospective cohort study from January 2006 to December 2013 at the Yaoundé Central Hospital, Cameroon. We reviewed medical records to identify hospitalized co-infected TB/HIV patients aged 15 years and older. Death was defined as any death occurring during TB treatment, as per the World Health Organization's recommendations. We conducted logistic regression analysis to identify factors associated with a fatal outcome. Magnitudes of associations were expressed by adjusted odds ratio (aOR) with 95% confidence interval.The 337 patients enrolled had a mean age of 39.3 (standard deviation 10.3) years and 54.3% were female. TB treatment outcomes were distributed as follows: 205 (60.8%) treatment success, 99 (29.4%) deaths, 18 (5.3%) not evaluated, 14 (4.2%) lost to follow-up, and 1 (0.3%) failed. After exclusion of patients lost to follow-up and not evaluated, death in TB/HIV co-infected patients during TB treatment was associated with a TB diagnosis made before 2010 (aOR = 2.50 [1.31-4.78]; p = 0.006), the presence of other AIDS-defining diseases (aOR = 2.73 [1.27-5.86]; p = 0.010), non-AIDS comorbidities (aOR = 3.35 [1.37-8.21]; p = 0.008), not receiving cotrimoxazole prophylaxis (aOR = 3.61 [1.71-7.63]; p = 0.001), not receiving antiretroviral therapy (aOR = 2.45 [1.18-5.08]; p = 0.016), and CD4 cells count
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- 2014
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45. Surveillance of travellers: an additional tool for tracking antimalarial drug resistance in endemic countries.
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Myriam Gharbi, Jennifer A Flegg, Bruno Pradines, Ako Berenger, Magatte Ndiaye, Abdoulaye A Djimdé, Cally Roper, Véronique Hubert, Eric Kendjo, Meera Venkatesan, Philippe Brasseur, Oumar Gaye, André T Offianan, Louis Penali, Jacques Le Bras, Philippe J Guérin, and Members of the French National Reference Center for Imported Malaria Study
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Medicine ,Science - Abstract
IntroductionThere are growing concerns about the emergence of resistance to artemisinin-based combination therapies (ACTs). Since the widespread adoption of ACTs, there has been a decrease in the systematic surveillance of antimalarial drug resistance in many malaria-endemic countries. The aim of this work was to test whether data on travellers returning from Africa with malaria could serve as an additional surveillance system of local information sources for the emergence of drug resistance in endemic-countries.MethodologyData were collected from travellers with symptomatic Plasmodium falciparum malaria returning from Senegal (n = 1,993), Mali (n = 2,372), Cote d'Ivoire (n = 4,778) or Cameroon (n = 3,272) and recorded in the French Malaria Reference Centre during the period 1996-2011. Temporal trends of the proportion of parasite isolates that carried the mutant genotype, pfcrt 76T, a marker of resistance to chloroquine (CQ) and pfdhfr 108N, a marker of resistance to pyrimethamine, were compared for travellers and within-country surveys that were identified through a literature review in PubMed. The in vitro response to CQ was also compared between these two groups for parasites from Senegal.ResultsThe trends in the proportion of parasites that carried pfcrt 76T, and pfdhfr 108N, were compared for parasites from travellers and patients within-country using the slopes of the curves over time; no significant differences in the trends were found for any of the 4 countries. These results were supported by in vitro analysis of parasites from the field in Senegal and travellers returning to France, where the trends were also not significantly different.ConclusionThe results have not shown different trends in resistance between parasites derived from travellers or from parasites within-country. This work highlights the value of an international database of drug responses in travellers as an additional tool to assess the emergence of drug resistance in endemic areas where information is limited.
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- 2013
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46. High avidity antibodies to full-length VAR2CSA correlate with absence of placental malaria.
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Yeung Lo Tutterrow, Ali Salanti, Marion Avril, Joseph D Smith, Ian S Pagano, Simon Ako, Josephine Fogako, Rose G F Leke, and Diane Wallace Taylor
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Medicine ,Science - Abstract
VAR2CSA mediates sequestration of Plasmodium falciparum-infected erythrocytes in the placenta, increasing the risk of poor pregnancy outcomes. Naturally acquired antibodies (Ab) to placental parasites at delivery have been associated with improved pregnancy outcomes, but Ab levels and how early in pregnancy Ab must be present in order to eliminate placental parasites before delivery remains unknown. Antibodies to individual Duffy-binding like domains of VAR2CSA have been studied, but the domains lack many of the conformational epitopes present in full-length VAR2CSA (FV2). Thus, the purpose of this study was to describe the acquisition of Ab to FV2 in women residing in high and low transmission areas and determine how Ab levels during pregnancy correlate with clearance of placental parasites. Plasma samples collected monthly throughout pregnancy from pregnant women living in high and low transmission areas in Cameroon were evaluated for Ab to FV2 and the proportion of high avidity Ab (i.e., Ab that remain bound in the presence of 3M NH(4)SCN) was assessed. Ab levels and proportion of high avidity Ab were compared between women with placental malaria (PM(+)) and those without (PM(-)) at delivery. Results showed that PM(-) women had significantly higher Ab levels (p = 0.0047) and proportion of high avidity Ab (p = 0.0009) than PM(+) women throughout pregnancy. Specifically, women with moderate to high Ab levels (>5,000 MFI) and those with ≥ 35% high avidity Ab at 5-6 months were found to have 2.3 (95% CI, 1.0-4.9) and 7.6-fold (p = 0.0013, 95% CI: 1.2-50.0) reduced risk of placental malaria, respectively. These data show that high levels of Ab to FV2, particularly those with high avidity for FV2, produced by mid-pregnancy are important in clearing parasites from the placenta. Both high Ab levels and proportion of high avidity Ab to FV2 may serve as correlates of protection for assessing immunity against placental malaria.
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- 2012
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