15 results on '"Michelle Choy"'
Search Results
2. Group antenatal care for improving retention of adolescent and young pregnant women living with HIV in Kenya
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Chloe A. Teasdale, Judith Odondi, Catherine Kidiga, Michelle Choy, Ruby Fayorsey, Bernadette Ngeno, Boniface Ochanda, Agnes Langat, Catherine Ngugi, Tegan Callahan, Surbhi Modi, Mark Hawken, Doris Odera, and Elaine J. Abrams
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Prevention of mother-to-child transmission of HIV ,Group antenatal care ,Retention ,Antiretroviral therapy ,Adolescent pregnancy ,Gynecology and obstetrics ,RG1-991 - Abstract
Abstract Background Pregnant and breastfeeding adolescents and young women living with HIV (AYWLH) have lower retention in prevention of mother-to-child transmission (PMTCT) services compared to older women. Methods We evaluated a differentiated service model for pregnant and postnatal AYWLH at seven health facilities in western Kenya aimed at improving retention in antiretroviral treatment (ART) services. All pregnant AYWLH
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- 2022
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3. HIV retesting for pregnant and breastfeeding women across maternal child health services in Nampula, Mozambique.
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Chloe A Teasdale, Michelle Choy, Fatima Tsiouris, Eduarda Pimentel De Gusmao, Etelvino C P Banqueiro, Aleny Couto, Kwalila Tibana, Nicole Flowers, Marilena Urso, Mirriah Vitale, and Elaine J Abrams
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Medicine ,Science - Abstract
BackgroundRepeat HIV testing during pregnancy and breastfeeding identifies women with incident infections, those living with HIV who have been lost to care, and infants at risk for HIV infection. We report data from repeat testing for women in maternal and child health (MCH) services at 10 health facilities in Mozambique.MethodsRoutinely collected data from health facility registers are reported from April-November 2019. From antenatal care (ANC), we report numbers and proportions of women eligible for retesting; returned for care when retesting eligible; retested; and HIV-positive (HIV+) at retesting. From child welfare clinics (CWC), we report mothers retested; tested HIV-positive; HIV+ mothers linked to ART services; HIV-exposed infants (HEI) tested for HIV with polymerase chain reaction (PCR) tests; HEI testing PCR positive; PCR-positive infants linked to care.ResultsIn ANC, 28,233 pregnant women tested HIV-negative at first ANC visit, 40.7% had a follow-up visit when retesting eligible, among whom 84.8% were retested and 0.3%(N = 26) tested HIV+. In CWC, 26,503 women were tested; 0.8%(N = 212) tested HIV+ and 74.1%(N = 157) of HIV+ women were linked to care. Among 157 HEI identified in CWC, 68.4%(N = 145) received PCR testing and 19.3%(N = 28) tested positive.ConclusionIn ANC, less than half of pregnant women eligible for retesting returned for follow-up visits, and test positivity was low among women retested in ANC and CWC. In CWC, linkage to infant testing was poor and almost 20% of HEI were PCR-positive. Implementing retesting for pregnant and breastfeeding women is challenging due to high numbers of women and low testing yield.
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- 2023
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4. Patient feedback surveys among pregnant women in Eswatini to improve antenatal care retention.
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Chloe A Teasdale, Amanda Geller, Siphesihle Shongwe, Arnold Mafukidze, Michelle Choy, Bhekinkhosi Magaula, Katharine Yuengling, Katherine King, Eduarda Pimentel De Gusmao, Caroline Ryan, Trong Ao, Tegan Callahan, Surbhi Modi, and Elaine J Abrams
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Medicine ,Science - Abstract
BackgroundUptake and retention in antenatal care (ANC) is critical for preventing adverse pregnancy outcomes for both mothers and infants.MethodsWe implemented a rapid quality improvement project to improve ANC retention at seven health facilities in Eswatini (October-December 2017). All pregnant women attending ANC visits were eligible to participate in anonymous tablet-based audio assisted computer self-interview (ACASI) surveys. The 24-question survey asked about women's interactions with health facility staff (HFS) (nurses, mentor mothers, receptionists and lab workers) with a three-level symbolic response options (agree/happy, neutral, disagree/sad). Women were asked to self-report HIV status. Survey results were shared with HFS at monthly quality improvement sessions. Chi-square tests were used to assess differences in responses between months one and three, and between HIV-positive and negative women. Routine medical record data were used to compare retention among pregnant women newly enrolled in ANC two periods, January-February 2017 ('pre-period') and January-February 2018 ('post-period') at two of the participating health facilities. Proportions of women retained at 3 and 6 months were compared using Cochran-Mantel-Haenszel and Wilcoxon tests.ResultsA total of 1,483 surveys were completed by pregnant women attending ANC, of whom 508 (34.3%) self-reported to be HIV-positive. The only significant change in responses from month one to three was whether nurses listened with agreement increasing from 88.3% to 94.8% (pConclusionThe type of rapid quality improvement intervention we implemented may be useful in improving patient-provider relationships although whether it can improve retention remains unclear.
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- 2021
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5. Texture-based differences in eating rate influence energy intake for minimally processed and ultra-processed meals
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Teo, Pey Sze, Lim, Amanda JiaYing, Goh, Ai Ting, Janani, R, Michelle Choy, Jie Ying, McCrickerd, Keri, and Forde, Ciarán G
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- 2022
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6. Birth Testing for Infant HIV Diagnosis in Eswatini: Implementation Experience and Uptake Among Women Living With HIV in Manzini Region
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Chloe A. Teasdale, Siphesihle Shongwe, Simangele Mthethwa, Hlengiwe Nhlengetfwa, Fatima Tsiouris, Arnold Mafukidze, Emilia D. Rivadeneira, Samkelisiwe Simelane, Michelle Choy, Trong Ao, Elaine J. Abrams, Caroline Ryan, and Helen Dale
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Adult ,Male ,Microbiology (medical) ,Pediatrics ,medicine.medical_specialty ,Adolescent ,Low resource ,HIV diagnosis ,Columbia university ,Human immunodeficiency virus (HIV) ,Mothers ,HIV Infections ,Pilot Projects ,Hiv testing ,Reference laboratory ,medicine.disease_cause ,Article ,Young Adult ,03 medical and health sciences ,Neonatal Screening ,0302 clinical medicine ,Pregnancy ,030225 pediatrics ,Humans ,Medicine ,030212 general & internal medicine ,Pregnancy Complications, Infectious ,business.industry ,Health Plan Implementation ,Infant, Newborn ,Infectious Disease Transmission, Vertical ,Dried blood spot ,Infectious Diseases ,Anti-Retroviral Agents ,Pediatrics, Perinatology and Child Health ,Community health ,HIV-1 ,Female ,business ,Eswatini - Abstract
INTRODUCTION: HIV testing at birth of HIV-exposed infants (HEIs) may improve the identification of infants infected with HIV in utero and accelerate antiretroviral treatment (ART) initiation. METHODS: ICAP at Columbia University supported implementation of a national pilot of HIV testing at birth (0–7 days) in Eswatini at 2 maternity facilities. Dried blood spot (DBS) samples from neonates of women living with HIV (WLHIV) were collected and processed at the National Molecular Reference Laboratory using polymerase chain reaction (PCR). Mothers received birth test results at community health clinics. We report data on HIV birth testing uptake and outcomes for HIV-positive infants from the initial intensive phase (October 2017–March 2018) and routine support phase (April–December 2018). RESULTS: During the initial intensive pilot phase, 1669 WLHIV delivered 1697 live-born HEI at 2 health facilities and 1480 (90.3%) HEI received birth testing. During the routine support phase, 2546 WLHIV delivered and 2277 (93.5%) HEI received birth testing. Overall October 2017–December 2018, 22 (0.6%) infants of 3757 receiving birth testing had a positive PCR test, 15 (68.2%) of whom were successfully traced and linked for confirmatory testing (2 infants were reported by caregivers to have negative follow-up HIV tests). Median time from birth test to receipt of results by the caregiver was 13 days (range: 8–23). Twelve (60.0%) of 20 infants confirmed to be HIV-positive started ART at median age of 17.5 days (12–43). One mother of an HIV-positive infant who was successfully traced refused ART following linkage to care and another child died after ART initiation. Three infants (15.0%) had died by the time their mothers were reached and 4 (15.0%) infants were never located. CONCLUSION: This pilot of universal birth testing in Eswatini demonstrates the feasibility of using a standard of care approach in a low resource and high burden setting. We document high uptake of testing for newborns among HIV-positive mothers and very few infants were found to be infected through birth testing.
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- 2020
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7. Texture-based differences in eating rate influence energy intake for minimally processed and ultra-processed meals
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Amanda Lim, Pey Sze Teo, Keri McCrickerd, Michelle Choy, Ai Ting Goh, Janani R, and Ciaran Forde
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Adult ,Male ,Cross-Over Studies ,Nutrition and Dietetics ,Medicine (miscellaneous) ,Satiation ,Eating ,Young Adult ,Lunch ,Humans ,Life Science ,Female ,Energy Intake ,Meals - Abstract
Consumption of ultra-processed foods has been linked with higher energy intakes. Food texture is known to influence eating rate (ER) and energy intake to satiation, yet it remains unclear whether food texture influences energy intakes from minimally processed and ultra-processed meals.We examined the independent and combined effects of food texture and degree of processing on ad libitum food intake. We also investigated whether differences in energy intake during lunch influenced postmeal feelings of satiety and later food intake.In this crossover study, 50 healthy-weight participants [n = 50 (24 men); mean ± SD age: 24.4 ± 3.1 y; BMI: 21.3 ± 1.9 kg/m2] consumed 4 ad libitum lunch meals consisting of "soft minimally processed," "hard minimally processed," "soft ultra-processed," and "hard ultra-processed" components. Meals were matched for total energy served, with some variation in meal energy density (±0.20 kcal/g). Ad libitum food intake (kcal and g) was measured and ER derived using behavioral coding of videos. Subsequent food intake was self-reported by food diary.There was a main effect of food texture on intake, whereby "hard minimally processed" and "hard ultra-processed" meals were consumed slower overall, produced a 21% and 26% reduction in food weight (g) and energy (kcal) consumed, respectively. Intakes were higher for "soft ultra-processed" and "soft minimally processed" meals (P 0.001), after correcting for meal pleasantness. The effect of texture on food weight consumed was not influenced by processing levels (weight of food: texture*processing-effect, P = 0.376), but the effect of food texture on energy intake was (energy consumed: texture*processing-effect, P = 0.015). The least energy was consumed from the "hard minimally processed" meal (482.9 kcal; 95% CI: 431.9, 531.0 kcal) and the most from the "soft ultra-processed" meal (789.4 kcal; 95% CI: 725.9, 852.8 kcal; Δ=↓∼300 kcal). Energy intake was lowest when harder texture was combined with the "minimally processed" meals. Total energy intake across the day varied directly with energy intakes of the test meals (Δ15%, P 0.001).Findings suggest that food texture-based differences in ER and meal energy density contribute to observed differences in energy intake between minimally processed and ultra-processed meals.This trial was registered at clinicaltrials.gov as NCT04589221.
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- 2022
8. Patient feedback surveys among pregnant women in Eswatini to improve antenatal care retention
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Trong Ao, Amanda Geller, Bhekinkhosi Magaula, Elaine J. Abrams, Caroline Ryan, Siphesihle Shongwe, Arnold Mafukidze, Tegan Callahan, Katherine King, Eduarda Pimentel De Gusmao, Michelle Choy, Surbhi Modi, Katharine A. Yuengling, and Chloe A. Teasdale
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RNA viruses ,Maternal Health ,Health Care Providers ,Nurses ,HIV Infections ,Surveys ,Pathology and Laboratory Medicine ,Cohort Studies ,Health facility ,Immunodeficiency Viruses ,Pregnancy ,Surveys and Questionnaires ,Medicine and Health Sciences ,Retention in Care ,Medicine ,Medical Personnel ,Multidisciplinary ,Obstetrics ,Pharmaceutics ,Medical record ,Receptionists ,Obstetrics and Gynecology ,Prenatal Care ,Patient feedback ,Professions ,Research Design ,Medical Microbiology ,Patient Satisfaction ,Viral Pathogens ,Viruses ,Female ,Pathogens ,Research Article ,Adult ,medicine.medical_specialty ,Science ,Survey result ,Research and Analysis Methods ,Microbiology ,Drug Therapy ,Antenatal Care ,Retroviruses ,Humans ,Pregnancy outcomes ,Microbial Pathogens ,Survey Research ,business.industry ,Lentivirus ,Organisms ,Biology and Life Sciences ,HIV ,medicine.disease ,Health Care ,Health Care Facilities ,People and Places ,Women's Health ,Population Groupings ,Hiv status ,Pregnant Women ,business.job_title ,business ,Eswatini - Abstract
Background Uptake and retention in antenatal care (ANC) is critical for preventing adverse pregnancy outcomes for both mothers and infants. Methods We implemented a rapid quality improvement project to improve ANC retention at seven health facilities in Eswatini (October-December 2017). All pregnant women attending ANC visits were eligible to participate in anonymous tablet-based audio assisted computer self-interview (ACASI) surveys. The 24-question survey asked about women’s interactions with health facility staff (HFS) (nurses, mentor mothers, receptionists and lab workers) with a three-level symbolic response options (agree/happy, neutral, disagree/sad). Women were asked to self-report HIV status. Survey results were shared with HFS at monthly quality improvement sessions. Chi-square tests were used to assess differences in responses between months one and three, and between HIV-positive and negative women. Routine medical record data were used to compare retention among pregnant women newly enrolled in ANC two periods, January-February 2017 (‘pre-period’) and January-February 2018 (‘post-period’) at two of the participating health facilities. Proportions of women retained at 3 and 6 months were compared using Cochran-Mantel-Haenszel and Wilcoxon tests. Results A total of 1,483 surveys were completed by pregnant women attending ANC, of whom 508 (34.3%) self-reported to be HIV-positive. The only significant change in responses from month one to three was whether nurses listened with agreement increasing from 88.3% to 94.8% (p Conclusion The type of rapid quality improvement intervention we implemented may be useful in improving patient-provider relationships although whether it can improve retention remains unclear.
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- 2021
9. Group Antenatal Care for Improving Retention of Adolescent and Young Pregnant Women Living With HIV in Kenya
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Chloe A. Teasdale, Judith Odondi, Boniface Ochanda, Mark Hawken, Bernadette Ngeno, Agnes Langat, Doris Odera, Catherine Ngugi, Surbhi Modi, Catherine Kidiga, Tegan Callahan, Michelle Choy, Elaine J. Abrams, and Ruby Fayorsey
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Adolescent ,Breastfeeding ,HIV Infections ,Rate ratio ,symbols.namesake ,Acquired immunodeficiency syndrome (AIDS) ,Pregnancy ,medicine ,Humans ,Poisson regression ,Aged ,business.industry ,Obstetrics and Gynecology ,Infant ,Prenatal Care ,medicine.disease ,Institutional review board ,Kenya ,Infectious Disease Transmission, Vertical ,Relative risk ,symbols ,Female ,Health education ,Pregnant Women ,business ,Breast feeding ,Demography - Abstract
Background: Pregnant and breastfeeding adolescents and young women living with HIV (AYWLH) have lower retention in prevention of mother-to-child transmission (PMTCT) services compared to older women. Methods: We evaluated a differentiated service model for pregnant and breast feeding AYWLH at seven health facilities in western Kenya. All pregnant AYWLH
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- 2021
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10. Increased oral processing and a slower eating rate increase glycaemic, insulin and satiety responses to a mixed meal tolerance test
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Jie Ying Michelle Choy, Clare Whitton, Ciarán G. Forde, Ai Ting Goh, Xin Hui Chua, Rob M. van Dam, Chin Meng Khoo, and Shalini Ponnalagu
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0301 basic medicine ,Saliva ,medicine.medical_specialty ,medicine.medical_treatment ,Eating behaviour ,Medicine (miscellaneous) ,030209 endocrinology & metabolism ,Glycaemic responses ,Type 2 diabetes ,Mixed meal ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,Insulin response ,medicine ,Eating rate ,Meal ,030109 nutrition & dietetics ,Nutrition and Dietetics ,business.industry ,Insulin ,digestive, oral, and skin physiology ,medicine.disease ,Satiety ,Endocrinology ,Satiety Response ,Bolus (digestion) ,business - Abstract
Purpose: Variations in specific oral processing behaviours may contribute to differences in glucose, insulin and satiety responses to a standardised test meal. This study tested how natural variations in oral processing between slower and faster eaters contribute to differences in post-prandial glucose (PP glucose), insulin response (PP insulin) and post-meal satiety for a standardised test meal. Methods: Thirty-three participants with higher risk for type 2 diabetes consumed a standardised test-meal while being video recorded to derive specific oral processing behaviours. Plasma glucose, insulin and satiety measures were collected at baseline, during and post meal. Participants were split into slower and faster eaters using median split based on their eating rates and individual bolus properties were analysed at the point of swallow. Results: There were large variations in eating rate (p < 0.001). While there was no significant difference in PP glucose response (p > 0.05), slower eaters showed significantly higher PP insulin between 45 and 60 min (p < 0.001). Slower eaters had longer oro-sensory exposure and increased bolus saliva uptake which was associated with higher PP glucose iAUC. Faster eating rate and larger bolus particle size at swallow correlated with lower PP glucose iAUC. A slower eating rate with greater chews per bite significantly increased insulin iAUC. Faster eaters also consistently rated their hunger and desire to eat higher than slower eaters (p < 0.05). Conclusions: Natural variations in eating rate and the associated oral processing contributed to differences in PP glucose, PP insulin and satiety responses. Encouraging increased chewing and longer oral-exposure time during consumption, may promote early glucose absorption and greater insulin and satiety responses, and help support euglycaemia. Trial Registration: ClinicalTrials.gov identifier: NCT04522063.
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- 2021
11. Increased oral processing and a slower eating rate increase glycaemic, insulin and satiety responses to a mixed meal tolerance test
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Ai Ting, Goh, Jie Ying Michelle, Choy, Xin Hui, Chua, Shalini, Ponnalagu, Chin Meng, Khoo, Clare, Whitton, Rob Martinus, van Dam, and Ciarán Gerard, Forde
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Blood Glucose ,Eating ,Diabetes Mellitus, Type 2 ,Humans ,Insulin ,Meals ,Satiety Response - Abstract
Variations in specific oral processing behaviours may contribute to differences in glucose, insulin and satiety responses to a standardised test meal. This study tested how natural variations in oral processing between slower and faster eaters contribute to differences in post-prandial glucose (PP glucose), insulin response (PP insulin) and post-meal satiety for a standardised test meal.Thirty-three participants with higher risk for type 2 diabetes consumed a standardised test-meal while being video recorded to derive specific oral processing behaviours. Plasma glucose, insulin and satiety measures were collected at baseline, during and post meal. Participants were split into slower and faster eaters using median split based on their eating rates and individual bolus properties were analysed at the point of swallow.There were large variations in eating rate (p 0.001). While there was no significant difference in PP glucose response (p 0.05), slower eaters showed significantly higher PP insulin between 45 and 60 min (p 0.001). Slower eaters had longer oro-sensory exposure and increased bolus saliva uptake which was associated with higher PP glucose iAUC. Faster eating rate and larger bolus particle size at swallow correlated with lower PP glucose iAUC. A slower eating rate with greater chews per bite significantly increased insulin iAUC. Faster eaters also consistently rated their hunger and desire to eat higher than slower eaters (p 0.05).Natural variations in eating rate and the associated oral processing contributed to differences in PP glucose, PP insulin and satiety responses. Encouraging increased chewing and longer oral-exposure time during consumption, may promote early glucose absorption and greater insulin and satiety responses, and help support euglycaemia.ClinicalTrials.gov identifier: NCT04522063.
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- 2020
12. Impact of Individual Differences in Eating Rate on Oral Processing, Bolus Properties and Post-Meal Glucose Responses
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Shalini Ponnalagu, Ciarán G. Forde, Michelle Choy, Georgia Chatonidi, Markus Stieger, and Ai Ting Goh
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Male ,Glycaemic Response ,Saliva ,Food texture ,Eating behaviour ,Individuality ,Experimental and Cognitive Psychology ,Biology ,Satiety Response ,Eating ,03 medical and health sciences ,Behavioral Neuroscience ,0302 clinical medicine ,Animal science ,Humans ,Eating rate ,0501 psychology and cognitive sciences ,050102 behavioral science & comparative psychology ,Meals ,Sensory Science and Eating Behaviour ,VLAG ,Meal ,digestive, oral, and skin physiology ,05 social sciences ,food and beverages ,Feeding Behavior ,Food Quality and Design ,Sensoriek en eetgedrag ,Glucose ,Chewiness ,White rice ,sense organs ,Bolus (digestion) ,030217 neurology & neurosurgery - Abstract
Purpose: Modifying food texture has been shown to influence oral processing behaviour. We explored the impact of food texture on oral processing, bolus formation and post-prandial glucose responses (PPG) among fast and slow eaters. Methods: Male participants (N=39) were split into fast or slow eaters based on natural differences in eating rate when consuming two carbohydrate-equivalent test-meals differing in texture (white rice and rice cake). PPG and satiety responses were compared for fast and slow eaters over 120-min for each test-meal. Each groups test-meal PPG was compared for bolus and saliva properties at the point of swallow. Results: White rice displayed lower instrumental hardness, chewiness and Young's modulus and was perceived less chewy, springy and sticky than rice cake. Slow eaters (n=24, white rice: 13.3 g/min; rice cake: 15.1 g/min) required an average 42% more chews per bite (p < 0.001), had 60% longer oral exposure time (OET), and consumed both test-meals (p < 0.001) at half the eating rate of fast eaters (n=15). Slow eaters had higher PPG following the rice cake meal at 15 (p = 0.046) and 45 min (p = 0.034) than fast eaters. A longer OET was a positive predictor of early PPG at 30-min after the white rice meal (β = 0.178, p = 0.041) and saliva uptake was a significant predictor (β = 0.458, p = 0.045) of PPG for slow eaters when consuming rice cake. Increasing food hardness and stiffness (Young's modulus) had a greater impact on eating rate for slow eaters than fast eaters. Conclusions: Eating rate, oral exposure time and bolus saliva uptake were the predictors of an individual's post-prandial glycaemic response amongst slow eaters. Increasing the number of chews per bite with a longer oral exposure time increased saliva uptake in the bolus at the moment of swallowing and enhanced temporal changes in PPG, leading to greater glycaemic peaks in rice cake meal. Differences in eating rate between slow and fast eaters when consuming rice cake meal influenced temporal changes in PPG but not total PPG, and bolus properties did not differ between eating rate groups.
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- 2021
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13. Circumventing 'free care' and 'shouting louder': using a health systems approach to study eye health system sustainability in government and mission facilities of north-west Tanzania
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Karl Blanchet, Alice Gilbert, Jennifer J. Palmer, and Michelle Choy
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Gerontology ,Systems Analysis ,Eye Diseases ,Religious Missions ,Peer support ,Eye ,faith-based organisations ,Tanzania ,0302 clinical medicine ,Hospitals, Religious ,Medicine ,Healthcare Financing ,030212 general & internal medicine ,Tanz ,Economics, Hospital ,Health Policy ,Cataract surgeon ,Health services research ,Service provider ,Public relations ,sustainability ,Outreach ,Government Programs ,Eye health system ,Sustainability ,Government ,Eye care ,Income ,Private Sector ,Community Health ,Health Services Research ,Health Personnel ,education ,Population health ,cateract surgeon ,Health systems research ,eye care ,user fee ,User fee ,Christianity ,03 medical and health sciences ,Humans ,Developing Countries ,Health policy ,eye health system ,Aged ,Organizations ,Public Sector ,health systems research ,business.industry ,Hospitals, Public ,Research ,Ophthalmology ,Fees and Charges ,Faith-based organisations ,030221 ophthalmology & optometry ,business ,Delivery of Health Care ,User fees - Abstract
Background Little is known about the contributions of faith-based organisations (FBOs) to health systems in Africa. In the specialist area of eye health, international and domestic Christian FBOs have been important contributors as service providers and donors, but they are also commonly critiqued as having developed eye health systems parallel to government structures which are unsustainable. Methods In this study, we use a health systems approach (quarterly interviews, a participatory sustainability analysis exercise and a social network analysis) to describe the strategies used by eye care practitioners in four hospitals of north-west Tanzania to navigate the government, church mission and donor rules that govern eye services delivery there. Results Practitioners in this region felt eye care was systemically neglected by government and therefore was ‘all under the NGOs’, but support from international donors was also precarious. Practitioners therefore adopted four main strategies to improve the sustainability of their services: (1) maintain ‘sustainability funds’ to retain financial autonomy over income; (2) avoid granting government user fee exemptions to elderly patients who are the majority of service users; (3) expand or contract outreach services as financial circumstances change; and (4) access peer support for problem-solving and advocacy. Mission-based eye teams had greater freedom to increase their income from user fees by not implementing government policies for ‘free care’. Teams in all hospitals, however, found similar strategies to manage their programmes even when their management structures were unique, suggesting the importance of informal rules shared through a peer network in governing eye care in this pluralistic health system. Conclusions Health systems research can generate new evidence on the social dynamics that cross public and private sectors within a local health system. In this area of Tanzania, Christian FBOs’ investments are important, not only in terms of the population health outcomes achieved by teams they support, but also in the diversity of organisational models they contribute to in the wider eye health system, which facilitates innovation. Electronic supplementary material The online version of this article (doi:10.1186/s12961-016-0137-9) contains supplementary material, which is available to authorized users.
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- 2016
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14. A meta-analysis of the use of intraoperative cholangiography; time to revisit our approach to cholecystectomy?
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Eoin Donnellan, Medical student, Jonathan Coulter, Specialist Surgical Registrar (BM BS BSc MRCSI), Cherian Mathew, Medical student, Michelle Choynowski, Doctor (BSc MB BCh BAO), Louise Flanagan, Registered Nurse (BSc), Magda Bucholc, PhD, Lecturer in Data Analytics, Alison Johnston, Specialist Breast Care Nurse (MSc), and Michael Sugrue, Consultant Surgeon (MB BCh BAO MD FRSCI FRACS)
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Surgery ,RD1-811 - Abstract
Background: Despite some evidence of improved survival with intraoperative cholangiography during cholecystectomy, debate has raged about its benefit, in part because of its questionable benefit, time, and resources required to complete. Methods: An International Prospective Register of Systematic Reviews–registered (ID CRD42018102154) meta-analysis following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines using PubMed, Scopus, Web of Science, and Cochrane library from 2003 to 2018 was undertaken including search strategy “intraoperative AND cholangiogra* AND cholecystectomy.” Articles scoring ≥16 for comparative and ≥10 for noncomparative using the Methodological Index for Non-Randomized Studies criteria were included. A dichotomous random effects meta-analysis using the Mantel-Haenszel method performed on Review Manager Version 5.3 was carried out. Results: Of 2,059 articles reviewed, 62 met criteria for final analysis. The mean rate of intraoperative cholangiography was 38.8% (range 1.6%–96.4%).There was greater detection of bile duct stones during cholecystectomy with routine intraoperative cholangiography compared with selective intraoperative cholangiography (odds ratio = 3.28, confidence interval = 2.80–3.86, P value < .001). While bile duct injury during cholecystectomy was less with intraoperative cholangiography (0.39%) than without intraoperative cholangiography (0.43%), it was not statistically significant (odds ratio= 0.88, confidence interval = 0.65–1.19, P value = .41). Readmission following cholecystectomy with intraoperative cholangiography was 3.0% compared to 3.5% without intraoperative cholangiography (odds ratio = 0.91, confidence interval = 0.78–1.06, P value = .23). Conclusion: The use of intraoperative cholangiography still has its place in cholecystectomy based on the detection of choledocholithiasis and the potential reduction of unfavorable outcomes associated with common bile duct stones. This meta-analysis, the first to review intraoperative cholangiography use, identified a marked variation in cholangiography use. Retrospective studies limit the ability to critically define association between intraoperative cholangiography use and bile duct injury.
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- 2021
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15. Corticospinal system development depends on motor experience
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Zhuo Meng, Michelle Choy, John H. Martin, and Seth L. Pullman
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Time Factors ,Presynaptic Terminals ,Pyramidal Tracts ,Behavioral/Systems/Cognitive ,Motor Activity ,Immobilization ,Motor system ,Forelimb ,medicine ,Animals ,Learning ,Paralysis ,Axon ,Botulinum Toxins, Type A ,Muscle, Skeletal ,Motor skill ,System development ,Neuromuscular Blockade ,Dose-Response Relationship, Drug ,Electromyography ,General Neuroscience ,Motor Cortex ,Recovery of Function ,medicine.anatomical_structure ,Cervical enlargement ,Cats ,Psychology ,Neuroscience ,Motor cortex - Abstract
Early motor experiences have been shown to be important for the development of motor skills in humans and animals. However, little is known about the role of motor experience in motor system development. In this study, we address the question of whether early motor experience is important in shaping the development of the corticospinal (CS) tract. We prevented limb use by the intramuscular injection of botulinum toxin A into selected forelimb muscles to produce muscle paralysis during the period of development of CS connection specificity, which is between postnatal weeks 3 and 7. CS terminations were examined using an anterograde tracer. Preventing normal forelimb use during CS axon development produced defective development of CS terminations at week 8 and in maturity. There were reductions in the topographic distribution of axon terminals, in terminal and preterminal branching, and in varicosity density. This suggests that limb use is needed to refine CS terminals into topographically specific clusters of dense terminal branches and varicosities. To determine correlated effects on motor behavior, cats were tested in a prehension task, to reach and grasp a piece of food from a narrow food well, when the neuromuscular blockade dissipated (by week 10) and in maturity (week 16). Preventing normal limb use also produced a prehension deficit later in development and in maturity, in which there was a loss of the supination component of grasping. This component of prehension in the cat depends on CS projections from the paw representation of rostral motor cortex to the cervical enlargement. Our findings show that motor experiences are necessary for normal development of CS terminations and function.
- Published
- 2004
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