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1.
J Nutr ; 154(4): 1440-1448, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38417549

RESUMEN

BACKGROUND: Although there is growing evidence on the role of preconception nutrition for birth outcomes, limited evidence exists for its effects on maternal health. OBJECTIVES: This study evaluates the impact of preconception micronutrient supplementation on maternal BMI (kg/m2) and body composition at 6 to 7 y postpartum (PP). METHODS: We followed females who participated in a randomized controlled trial of preconception supplementation in Vietnam and delivered live offspring (n = 1599). Females received weekly supplements containing either 2800 µg folic acid (FA) only, 60 mg iron and 2800 µg FA (IFA), or multiple micronutrients (MMs) (15 micronutrients including IFA) from baseline until conception followed by daily prenatal IFA supplements until delivery. Height, weight, mid-upper arm circumference, triceps skinfold, and waist-hip circumference were measured at recruitment and at 1, 2, and 6 to 7 y PP. Body fat was assessed using bioelectric impedance at 6 to 7 y PP (n = 867). Group comparisons were made using analysis of variance or chi-square tests and general linear models for adjusted models. RESULTS: At 6 to 7 y PP, we found significant differences (P < 0.05) by treatment group for mean percent fat (MM: 29.2%; IFA: 27.6%; FA: 27.8%), absolute fat mass (MM: 15.1 kg; IFA: 14.0 kg; FA: 14.3 kg), and prevalence of underweight based on BMI < 18.5 (MM: 5.8%; IFA: 10.3%; FA: 14.3%). Mean BMI and triceps skinfold thickness were higher in the MM group, but these differences were not statistically significant; the differences in absolute fat mass were also attenuated after controlling for body weight. No differences were observed for fat-free mass, prevalence of overweight (BMI >23), or other anthropometric measurements. CONCLUSIONS: Preconception MM supplementation was associated with lower prevalence of underweight and higher percent fat when compared with IFA and/or FA only. Preconception micronutrient interventions may have long-term effects on maternal health and merit further examination. This trial was registered at clinicaltrials.gov as NCT01665378.


Asunto(s)
Hierro , Delgadez , Embarazo , Femenino , Humanos , Hierro/farmacología , Vietnam , Índice de Masa Corporal , Ácido Fólico , Suplementos Dietéticos , Periodo Posparto , Micronutrientes , Composición Corporal
2.
Int J Geriatr Psychiatry ; 39(2): e6066, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38314872

RESUMEN

OBJECTIVES: Post-operative delirium (POD) affects up to 50% of cardiac surgery patients, with higher incidence in older adults. There is increasing need for screening tools that identify individuals most vulnerable to POD. Here, we examined the relationship between pre-operative olfaction and both incident POD and POD severity in patients undergoing cardiac surgery. We also examined cross-sectional relationships between baseline olfaction, cognition, and plasma neurofilament light (NfL). METHODS: Individuals undergoing cardiac surgery (n = 189; mean age = 70 years; 75% men) were enrolled in a clinical trial of cerebral autoregulation monitoring. At baseline, odor identification performance (Brief Smell Identification Test), cognitive performance, and plasma concentrations of NfL levels (Simoa™ NF-Light Assay) were measured. Delirium was assessed with the Confusion Assessment Method (CAM) or CAM-ICU, and delirium severity was assessed using the Delirium Rating Scale-Revised-98. The association of baseline olfaction, delirium incidence, and delirium severity was examined in regression models adjusting for age, duration of cardiopulmonary bypass, logistic European System for Cardiac Operative Risk Evaluation (EuroSCORE), and baseline cognition. RESULTS: Olfactory dysfunction was present in 30% of patients, and POD incidence was 44%. Pre-operative olfactory dysfunction was associated with both incident POD (OR = 3.17, p = 0.001) and greater severity of POD after cardiac surgery (OR = 3.94 p < 0.001) in models adjusted for age, duration of bypass, and a surgical risk score. The addition of baseline cognition attenuated the strength of the association, but it remained significant for incident POD (OR = 2.25, p = 0.04) and POD severity (OR 2.10, p = 0.04). Poor baseline olfaction was associated with greater baseline cognitive dysfunction (p < 0.001) and increased baseline plasma NfL concentrations (p = 0.04). Neither age, cognition, nor baseline NFL concentration modified the association of impaired olfaction and delirium outcomes. CONCLUSIONS: Olfactory assessment may be a useful pre-surgical screening tool for the identification of patients undergoing cardiac surgery at increased risk of POD. Identifying those at highest risk for severe delirium and poor cognitive outcomes following surgery would allow for earlier intervention and pre-operative rehabilitation strategies, which could ultimately impact the functional disability and morbidity associated with POD.


Asunto(s)
Procedimientos Quirúrgicos Cardíacos , Delirio , Delirio del Despertar , Trastornos del Olfato , Masculino , Humanos , Anciano , Femenino , Delirio del Despertar/complicaciones , Olfato , Delirio/diagnóstico , Delirio/epidemiología , Delirio/etiología , Filamentos Intermedios , Complicaciones Posoperatorias/epidemiología , Procedimientos Quirúrgicos Cardíacos/efectos adversos , Factores de Riesgo , Cognición , Trastornos del Olfato/etiología , Trastornos del Olfato/complicaciones
3.
Value Health ; 26(4): 598-611, 2023 04.
Artículo en Inglés | MEDLINE | ID: mdl-36328324

RESUMEN

OBJECTIVES: Pneumococcal conjugate vaccines (PCVs) have significantly reduced disease burden caused by Streptococcus pneumoniae, a leading cause of childhood morbidity and mortality globally. This systematic review and meta-analysis aimed to assess the incremental net benefit (INB) of the 13-valent PCV (PCV13) and 10-valent PCV (PCV10) in children. METHODS: We performed a comprehensive search in several databases published before May 2022. Studies were included if they were cost-effectiveness or cost-utility analyses of PCV13 or PCV10 compared with no vaccination or with each other in children. Various monetary units were converted to purchasing power parity, adjusted to 2021 US dollars. The INBs were calculated and then pooled across studies stratified by country income level, perspective, and consideration of herd effects, using a random-effect model. RESULTS: Seventy studies were included. When herd effects were considered, PCV13 was cost-effective compared with PCV10 from the payer perspective in both high-income countries (HICs) (INB, $103.94; 95% confidence interval, $75.28-$132.60) and low- and middle-income countries (LMICs) (INB, $53.49; 95% confidence interval, $30.42-$76.55) with statistical significance. These findings were robust across a series of sensitivity analyses. PCV13 was cost-effective compared with no vaccination across perspectives and consideration of herd effects in both HICs and LMICs, whereas findings were less consistent for PCV10. CONCLUSION: PCVs were generally cost-effective compared with no vaccination in HICs and LMICs. Our study found that PCV13 was cost-effective compared with PCV10 when herd effects were considered from the payer perspective in both HICs and LMICs. The results are sensitive to the consideration of herd effects.


Asunto(s)
Infecciones Neumocócicas , Niño , Humanos , Lactante , Infecciones Neumocócicas/prevención & control , Análisis Costo-Beneficio , Programas de Inmunización , Vacunación , Vacunas Neumococicas/uso terapéutico , Vacunas Conjugadas
4.
J Nutr ; 151(8): 2305-2316, 2021 08 07.
Artículo en Inglés | MEDLINE | ID: mdl-34236434

RESUMEN

BACKGROUND: The coronavirus (COVID-19) pandemic may substantially affect health systems, but little primary evidence is available on disruption of health and nutrition services. OBJECTIVES: This study aimed to 1) determine the extent of disruption in provision and utilization of health and nutrition services induced by the pandemic in Uttar Pradesh, India; and 2) identify how adaptations were made to restore service provision in response to the pandemic. METHODS: We conducted longitudinal surveys with frontline workers (FLWs, n = 313) and mothers of children <2 y old (n = 659) in December 2019 (in-person) and July 2020 (by phone). We also interviewed block-level managers and obtained administrative data. We examined changes in service provision and utilization using Wilcoxon matched-pairs signed-rank tests. RESULTS: Compared with prepandemic, service provision reduced substantially during lockdown (83-98 percentage points, pp), except for home visits and take-home rations (∼30%). Most FLWs (68%-90%) restored service provision in July 2020, except for immunization and hot cooked meals (<10%). Administrative data showed similar patterns of disruption and restoration. FLW fears, increased workload, inadequate personal protective equipment (PPE), and manpower shortages challenged service provision. Key adaptations made to provide services were delivering services to beneficiary homes (∼40%-90%), social distancing (80%), and using PPE (40%-50%) and telephones for communication (∼20%). On the demand side, service utilization reduced substantially (40-80 pp) during the lockdown, but about half of mothers received home visits and food supplementation. Utilization for most services did not improve after the lockdown, bearing the challenges of limited travel (30%), nonavailability of services (26%), and fear of catching the virus when leaving the house (22%) or meeting service providers (14%). CONCLUSIONS: COVID-19 disrupted the provision and use of health and nutrition services in Uttar Pradesh, India, despite adaptations to restore services. Strengthening logistical support, capacity enhancement, performance management, and demand creation are needed to improve service provision and utilization during and post-COVID-19.


Asunto(s)
COVID-19/epidemiología , Servicios de Alimentación , Servicios de Salud , SARS-CoV-2 , COVID-19/prevención & control , Composición Familiar , Servicios de Alimentación/estadística & datos numéricos , Recursos en Salud , Servicios de Salud/estadística & datos numéricos , Humanos , India/epidemiología , Estudios Longitudinales , Teléfono
5.
J Nutr ; 151(8): 2282-2295, 2021 08 07.
Artículo en Inglés | MEDLINE | ID: mdl-34038529

RESUMEN

BACKGROUND: Maternal nutrition interventions are inadequately integrated into antenatal care (ANC). Alive & Thrive aimed to strengthen delivery of micronutrient supplements and intensify interpersonal counseling and community mobilization through government ANC services. OBJECTIVES: We compared nutrition-intensified ANC (I-ANC) with standard ANC (S-ANC) on coverage of nutrition interventions and maternal nutrition practices. METHODS: We used a cluster-randomized design with cross-sectional baseline (2017) and endline (2019) surveys (n ∼660 pregnant and 1800 recently delivered women per survey) and a repeated-measures longitudinal study in 2018-2019 (n = 400). We derived difference-in-difference effect estimates (DIDs) for diet diversity, consumption of micronutrient supplements, weight monitoring, and early breastfeeding practices. RESULTS: Despite substantial secular improvements in service coverage from India's national nutrition program, women in the I-ANC arm received more home visits [DID: 7-14 percentage points (pp)] and counseling on core nutrition messages (DID: 10-23 pp) than in the S-ANC arm. One-third of women got ≥3 home visits and one-fourth received ≥4 ANC check-ups in the I-ANC arm. Improvements were greater in the I-ANC arm than in the S-ANC arm for any receipt and consumption of iron-folic acid (DID: 7.5 pp and 9.5 pp, respectively) and calcium supplements (DID: 14.1 pp and 11.5 pp, respectively). Exclusive breastfeeding improved (DID: 7.5 pp) but early initiation of breastfeeding did not. Maternal food group consumption (∼4 food groups) and probability of adequacy of micronutrients (∼20%) remained low in both arms. Repeated-measures longitudinal analyses showed similar results, with additional impact on consumption of vitamin A-rich foods (10 pp, 11 g/d), other vegetables and fruits (22-29 g/d), and gestational weight gain (0.4 kg). CONCLUSIONS: Intensifying nutrition in government ANC services improved maternal nutrition practices even with strong secular trends in service coverage. Dietary diversity, supplement consumption, and breastfeeding practices remained suboptimal. Achieving greater behavior changes will require strengthening the delivery and use of maternal nutrition services integrated into ANC services in the health system. This trial was registered at clinicaltrials.gov as NCT03378141.


Asunto(s)
Lactancia Materna , Ganancia de Peso Gestacional , Estudios Transversales , Ingestión de Alimentos , Femenino , Humanos , India , Estudios Longitudinales , Embarazo , Atención Prenatal , Evaluación de Programas y Proyectos de Salud
6.
Artículo en Zh | MEDLINE | ID: mdl-32306694

RESUMEN

Objective: To explore the effect of Balint group on the emotional labor and job burnout of nurses in cardiology, to provide a reference for improving the mental health of nurses in cardiology. Methods: A total of 78 pediatric nurses were randomly divided into observation group and control group by the random number table, 39 observation group nurses were received general nursing training and the intervention of 8- week Balint group, 39 control group nurses were not received anything intervention. Before and after the intervention of 8 weeks, The Emotional Labor Scale(ELS) and Maslach Burnout Inventory(MBI) were used to evaluate the emotional labor and job burnout of nurses. Results: The age of the nurses in the observation group was(26.3±2.7) years old, with 13 undergraduates and 26 specialists; the age of the nurses in the control group was (25.8±2.1) years old, with 14 undergraduates and 25 specialists. After 8 weeks intervention, the surface action score of ELS of observation group was significantly lower than the control group, the deep action and emotional display requirement scores of ELS of observation group were significantly higher than the control group, the differences were statistically significant (P<0.05). The emotional exhaustion and depersonalization factor scores of MBI of observation group were significantly lower than the control group, the personal accomplishment factor score of MBI of observation group was significantly higher than the control group, the differences were statistically significant (P<0.05). Conclusion: The use of Balint group may have contributed to improving emotional lab and job burnout of nurses in cardiology in a large degree.


Asunto(s)
Agotamiento Profesional/terapia , Cardiología , Enfermeras y Enfermeros/psicología , Terapia Psicoanalítica , Adulto , Despersonalización , Emociones , Humanos , Satisfacción en el Trabajo , Encuestas y Cuestionarios , Adulto Joven
7.
Zhonghua Yan Ke Za Zhi ; 55(8): 595-600, 2019 Aug 11.
Artículo en Zh | MEDLINE | ID: mdl-31422638

RESUMEN

Objective: To explore the effect of different types of visual display terminals (VDT) on visual fatigue. Methods: A total of 68 subjects were enrolled and divided into flat screen group, metal screen group and glass bead screen group. The subjects watched a video in the same environment for 60 minutes. Before and after watching, they were asked to fill in a visual fatigue rating scale and underwent visual function examinations. The blink rate of subjects was recorded during the experiment. Results: After watching the video, for the metal screen, glass bead screen, and flat screen group respectively: (1)The median (interquartile range, IQR) of visual fatigue rating increased significantly (before: 1.0 (1.2), 1.3 (1.6), 0.5 (0.9); after: 2.1 (1.9), 2.1 (1.7), 1.2 (1.0); Z=-4.72, -4.83, -3.75; all P<0.05). (2) The median (IQR) of blink frequency increased significantly (before: 11.5 (10.6), 15.3 (11.9), 7.0 (13.0) times/minute; after: 15.0 (13.0), 17.0 (16.0), 15.0 (12.0) times/minute; Z=-2.64, -2.74, -4.12; all P<0.05). (3) The mean (±standard deviation) of critical flicker fusion frequency (CFF) decreased significantly [before: (35.76±2.98), (35.84±2.79), (35.44±2.21) Hz; after: (35.09±2.78), (34.94±2.67), (34.57±2.33) Hz; t=-2.64, -2.38, -4.12; all P<0.05). (4)The median (IQR) of near point of convergence (NPC) became significantly larger [before: 3.9 (2.6), 4.0 (2.5), 4.3 (2.7) cm; after 5.4 (3.8), 4.8 (2.7), 6.1 (3.9) cm; Z=-3.39, -2.27, -3.36; all P<0.05]. (5)The median of negative relative accommodation (NRA) reduced significantly [before: 2.00 (0.50), 2.00 (0.56), 2.00 (0.25) cm; after 1.75 (0.50), 1.75 (0.25), 1.75 (0.50) cm; Z=-1.98, -2.09, -2.53; all P<0.05]. Meanwhile, no significant changes were found for the positive relative accommodation (PRA), accommodative amplitude, accommodative response, negative relative vergence in all groups after watching the video. The comparisons between the three groups showed that, after watching the video, the participants in the two kinds of projection screen group (the metal and glass bead screen group) had more subjective visual fatigue than those in the flat screen group respectively (Z=-2.09, -2.21; all P<0.05), while there was no significant difference in subjective visual fatigue between the two projection screen groups (P>0.05). In addition, positive fusional vergence recovery point and break point decreased after watching the video in the metal screen and glass bead screen group, respectively (t=4.15, 2.07; all P<0.05). However, no such change was found in the flat screen group. Conclusions: Short-term and long-distance VDT operations have significant effects on visual fatigue, which may be due to the decreased positive convergence ability. VDT operations over projection screens may result in more visual fatigue than LED flat panel display, while the effect of different projection screen types have insignificant influences on visual fatigue. (Chin J Ophthalmol, 2019, 55:595-600).


Asunto(s)
Astenopía , Cristales Líquidos , Acomodación Ocular , Astenopía/etiología , Humanos , Visión Ocular
8.
Int J Legal Med ; 131(1): 45-51, 2017 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-27236465

RESUMEN

The forensic science community has a growing interest in microbial population analysis, especially the microbial populations found inside and on the human body. Both their high abundance, microbes outnumber human cells by a factor 10, and their diversity, different sites of the human body harbour different microbial communities, make them an interesting tool for forensics. Faecal material is a type of trace evidence which can be found in a variety of criminal cases, but is often being ignored in forensic investigations. Deriving a human short tandem repeat (STR) profile from a faecal sample can be challenging. However, the microbial communities within faecal material can be of additional criminalistic value in linking a faecal trace to the possible donor. We present a microarray technique in which the faecal microbial community is used to differentiate between faecal samples and developed a decision model to predict the possible common origin of questioned samples. The results show that this technique may be a useful additional tool when no or only partial human STR profiles can be generated.


Asunto(s)
Bacterias/genética , Chaperonina 60/genética , Heces/microbiología , ARN Ribosómico 16S , ARN Ribosómico 18S , Técnicas de Apoyo para la Decisión , Genética Forense/métodos , Humanos , Análisis por Micromatrices , Reacción en Cadena de la Polimerasa , Sondas ARN , Reproducibilidad de los Resultados
9.
Cryo Letters ; 38(4): 305-314, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-29734432

RESUMEN

BACKGROUND: Urethral warmer and cryoheater are invented and applied in cryoablation to overcome urethral cryoinjury, but these devices cannot be fixed and precisely control the released heat which excessively reduces the effective ablation area. Current warmers enlarge the operation difficulty and decrease the precision in temperature control. OBJECTIVE: A reformed catheter termed urethral heater aims to protect the urethra and simultaneously control the released heat so as to meet the aid of doctors' convenient operation in effective therapy, device fixation and precise heat controllability. MATERIALS AND METHODS: In this paper, the temperature controller combined with temperature monitor was used to control the heating behavior of the urethral heater with the initial active temperature. The controllability and thermal protection of the urethral heater was simulated and tested, which compared with that of urethral warmer. RESULTS: During the trials in vitro, the lowest temperature at the urethra surface is -3.7 degree C when one cryoprobe was introduced in the cryoablation for 15 min and -15.3 degree C with two cryoprobes. Above all, the effective cryoablation area increased with the decline of initial active temperatures. CONCLUSION: The urethral heater is able to prevent the urethra from irreversible damage and modulate the ablation area. The delay of heat is a new way to decline the recurrence rate and facilitate the desire of aconuresis during the cryoablation.


Asunto(s)
Criocirugía/instrumentación , Calor , Próstata/fisiología , Uretra/fisiología , Animales , Frío , Simulación por Computador , Criopreservación , Gelatina/farmacología , Imagenología Tridimensional , Masculino , Músculos/fisiología , Sus scrofa
10.
Matern Child Nutr ; 12(4): 713-25, 2016 10.
Artículo en Inglés | MEDLINE | ID: mdl-27334544

RESUMEN

The pathways through which behavior change interventions impact breastfeeding practices have not been well studied. This study aimed to examine: (1) the effects of exposure to mass media and interpersonal counseling on exclusive breastfeeding (EBF) and hypothesized psychosocial determinants (i.e. knowledge, intention, beliefs, social norms, and self-efficacy); and (2) the pathways through which exposure to mass media and interpersonal counseling are associated with EBF. We used survey data from mothers with children < 2 year (n = 2045) from the 2013 process evaluation of Alive & Thrive's program in Viet Nam. Multiple linear regression analyses and structural equation modeling were used to estimate effects. Exposure to mass media only, interpersonal counseling only, both or neither was 51%, 5%, 19% and 25%, respectively. Exposure to both mass media and interpersonal counseling had additive effects on EBF as well as on related psychosocial factors, compared with no exposure. For example, EBF prevalence was 26.1 percentage points (pp) higher in the group that received interpersonal counseling only, 3.9 pp higher in the mass media group and 31.8 pp higher in the group that received both interventions. As hypothesized, more than 90% of the total effect of the two interventions on EBF was explained by the psychosocial factors measured. Our findings suggest that combining different behavior change interventions leads to greater changes in psychosocial factors, which in turn positively affects breastfeeding behaviors.


Asunto(s)
Lactancia Materna/psicología , Consejo , Promoción de la Salud , Medios de Comunicación de Masas , Madres/psicología , Preescolar , Estudios Transversales , Cultura , Femenino , Conocimientos, Actitudes y Práctica en Salud , Humanos , Lactante , Intención , Modelos Lineales , Masculino , Vietnam
11.
Eur J Neurol ; 22(1): 211-4, 2015 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-24641183

RESUMEN

BACKGROUND AND PURPOSE: Spastic paraplegia type 5 (SPG5) is an autosomal recessive (AR) hereditary spastic paraplegia (HSP) associated with pure or complicated phenotypes. This study aimed to screen SPG5 in Taiwanese HSP patients. METHODS: Sequencing of the SPG5 gene, CYP7B1, was performed in a cohort of 25 ethnic Han Taiwanese patients with AR or sporadic HSP. Clinical information and magnetic resonance imaging (MRI) were analyzed in confirmed SPG5 patients. RESULTS: One (33%) AR kindred and four (18%) sporadic cases had CYP7B1 mutations. All of the SPG5 cases carried the mutation c.334 C>T (R112X). Haplotype analysis suggested a 'founder effect' in ethnic Hans for this mutation. The phenotype was either pure or complicated by cerebellar ataxia. For the primary HSP phenotype, there were profound dorsal column sensory deficits in all patients. Spine MRI showed thoraco-lumbar cord atrophy in some patients. CONCLUSIONS: Spastic paraplegia type 5 is a common cause of AR and sporadic HSPs that has a higher frequency in Taiwanese than in other ethnic groups. It is associated with a CYP7B1 founder mutation and its phenotype is characterized by pronounced dorsal column sensory loss, with cerebellar ataxia in some patients.


Asunto(s)
Fenotipo , Paraplejía Espástica Hereditaria/genética , Esteroide Hidroxilasas/genética , Adolescente , Adulto , Ataxia Cerebelosa/genética , Familia 7 del Citocromo P450 , Femenino , Efecto Fundador , Haplotipos , Humanos , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad , Mutación , Linaje , Paraplejía Espástica Hereditaria/patología , Paraplejía Espástica Hereditaria/fisiopatología , Taiwán , Adulto Joven
12.
Genet Mol Res ; 14(4): 18546-51, 2015 Dec 28.
Artículo en Inglés | MEDLINE | ID: mdl-26782502

RESUMEN

Powdery mildew and rust fungi are obligate parasites that cannot live without host organisms. They are difficult to culture in synthetic medium in the laboratory. Genomic DNA extraction is one of the basic molecular techniques used to study the genetic structure of populations. In this study, 2 different DNA extraction methods, Chelex-100 and cetyltrimethylammonium bromide (CTAB), were used to extract DNA from euonymus powdery mildew and Puccinia striiformis f. sp Tritici. Polymerase chain reaction was carried out with a race-specific-marker rDNA-internal transcribed spacer sequence. Both DNA extraction methods were compared and analyzed. The results showed that both Chelex-100 and CTAB were effective for extracting genomic DNA from infected plant tissue. However, less DNA was required for the Chelex-100 method than for the CTAB method, and the Chelex-100 method involved fewer steps, was simpler and safer, and did not require organic solvents compared to the CTAB method. DNA quality was evaluated by polymerase chain reaction, and the results showed that genomic DNA extracted using the Chelex-100 method was better than that using CTAB method, and was sufficient for studying the genetic structure of population.


Asunto(s)
ADN de Hongos/aislamiento & purificación , Hongos/clasificación , Hongos/genética , Parásitos/microbiología , Enfermedades de las Plantas/microbiología , Enfermedades de las Plantas/parasitología , Animales , Fenotipo
13.
Hum Reprod ; 29(7): 1490-9, 2014 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-24771001

RESUMEN

STUDY QUESTION: Is the activity of sirtuin 3 (SIRT3) altered in granulosa and cumulus cells from young women with reduced ovarian reserve or women of advanced maternal age? SUMMARY ANSWER: SIRT3 mRNA and active protein in granulosa and cumulus cells were decreased in women with reduced ovarian reserve and advanced maternal age. WHAT IS KNOWN ALREADY: Young women with reduced ovarian reserve or women of advanced maternal age have reduced oocyte viability, possibly due to altered granulosa and cumulus cell metabolism. The mitochondrial SIRT3 protein may be implicated in these processes as it is able to sense the metabolic state of the cell and alter mitochondrial protein function post-translationally. STUDY DESIGN, SIZE, DURATION: This is a prospective cohort study, in which women (n = 72) undergoing routine IVF/ICSI were recruited and allocated to one of three cohorts based on age and ovarian reserve (as assessed by serum anti-Mullerian hormone level). Women were classified as young (≤35 years) or of advanced maternal age (≥40 years). PARTICIPANTS/MATERIALS, SETTING, METHODS: Granulosa and cumulus cells were collected. SIRT3 mRNA and protein levels and protein activity was analysed in granulosa and cumulus cells via quantitative PCR, immunohistochemistry and western blotting, and deacetylation activity, respectively. Activity of the glutamate dehydrogenase (GDH) enzyme, a known target of SIRT3, was assessed, and acetylated proteins in mitochondria isolated from granulosa and cumulus cells were separated by immunoprecipitation and acetylation of GDH assessed by western blotting. Data for women with good prognosis (young women with normal ovarian reserve) were compared with those from young women with reduced ovarian reserve and those of advanced maternal age. MAIN RESULTS AND THE ROLE OF CHANCE: SIRT3 mRNA and active protein were present in granulosa and cumulus cells and co-localized to the mitochondria. SIRT3 mRNA in granulosa cells was decreased in young women with reduced ovarian reserve and advanced maternal age versus young women with normal ovarian reserve (P < 0.05). SIRT3 mRNA in cumulus cells was decreased in women of advanced maternal age versus young women with normal ovarian reserve only (P < 0.05). Granulosa cell GDH activity was decreased in young women with reduced ovarian reserve and in women of advanced maternal age (P < 0.05), whereas cumulus cell GDH activity was reduced in the advanced maternal age group only (P < 0.05). The acetylation profile of GDH in mitochondria revealed increased acetylation of GDH in granulosa and cumulus cells from women of advanced maternal age (P < 0.05) while young women with reduced ovarian reserve had increased GDH acetylation in granulosa cells only (P < 0.05). LIMITATIONS, REASONS FOR CAUTION: Although patients were allocated to groups based on maternal age and ovarian reserve and matched for BMI, other maternal factors may also alter the 'molecular health' of ovarian cells. WIDER IMPLICATIONS OF THE FINDINGS: Our data suggest that SIRT3 post-translational modification of mitochondrial enzymes in human granulosa and cumulus cells may regulate GDH activity, thus altering the metabolic milieu surrounding the developing oocyte. Owing to the association between the decline in oocyte quality and pregnancy rates in women of advanced maternal age and the possible association with reduced ovarian reserve, knowledge of perturbed SIRT3 function in granulosa and cumulus cells may lead to novel therapies to improve mitochondrial metabolism in the oocyte and follicular cells in women undergoing IVF treatment. STUDY FUNDING/COMPETING INTEREST(S): No conflicts of interest to declare. Research was funded by an NHMRC project grant.


Asunto(s)
Glutamato Deshidrogenasa/metabolismo , Edad Materna , Folículo Ovárico/fisiopatología , Reserva Ovárica , Sirtuina 3/metabolismo , Adulto , Hormona Antimülleriana/sangre , Células del Cúmulo/metabolismo , Femenino , Fertilización In Vitro , Células de la Granulosa/citología , Humanos , Inmunohistoquímica , Mitocondrias/metabolismo , Recuperación del Oocito , Folículo Ovárico/metabolismo , Embarazo , Índice de Embarazo , Estudios Prospectivos , ARN Mensajero/metabolismo , Inyecciones de Esperma Intracitoplasmáticas
14.
J Nutr ; 144(10): 1627-36, 2014 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-25143372

RESUMEN

By mapping the mechanisms through which interventions are expected to achieve impact, program impact pathway (PIP) analysis lays out the theoretical causal links between program activities, outcomes, and impacts. This study examines the pathways through which the Alive & Thrive (A&T) social franchise model is intended to improve infant and young child feeding (IYCF) practices in Vietnam. Mixed methods were used, including qualitative interviews with franchise management board members (n = 12), surveys with health providers (n = 120), counseling observations (n = 160), and household surveys (n = 2045). Six PIP components were assessed: 1) franchise management, 2) training and IYCF knowledge of health providers, 3) service delivery, 4) program exposure and utilization, 5) maternal behavioral determinants (knowledge, beliefs, and intentions) toward optimal IYCF practices, and 6) IYCF practices. Data were collected from A&T-intensive areas (A&T-I; mass media + social franchise) and A&T-nonintensive areas (A&T-NI; mass media only) by using a cluster-randomized controlled trial design. Data from 2013 were compared with baseline where similar measures were available. Results indicate that mechanisms are in place for effective management of the franchise system, despite challenges to routine monitoring. A&T training was associated with increased capacity of providers, resulting in higher-quality IYCF counseling (greater technical knowledge and communication skills during counseling) in A&T-I areas. Franchise utilization increased from 10% in 2012 to 45% in 2013 but fell below the expected frequency of 9-15 contacts per mother-child dyad. Improvements in breastfeeding knowledge, beliefs, intentions, and practices were greater among mothers in A&T-I areas than among those in A&T-NI areas. In conclusion, there are many positive changes along the impact pathway of the franchise services, but challenges in utilization and demand creation should be addressed to achieve the full intended impact.


Asunto(s)
Fenómenos Fisiológicos Nutricionales Infantiles , Conducta Alimentaria , Conocimientos, Actitudes y Práctica en Salud , Promoción de la Salud , Adulto , Lactancia Materna , Preescolar , Análisis por Conglomerados , Estudios Transversales , Composición Familiar , Femenino , Encuestas Epidemiológicas , Humanos , Lactante , Masculino , Persona de Mediana Edad , Madres , Factores Socioeconómicos , Vietnam , Adulto Joven
15.
Laryngoscope ; 2024 May 29.
Artículo en Inglés | MEDLINE | ID: mdl-38808803

RESUMEN

OBJECTIVE: Although corticosteroids and other treatments for idiopathic sudden sensorineural hearing loss (ISSNHL) have been described, understanding its prognosis without intervention provides valuable information for patient management. The objective of this study is to provide a comprehensive, quantitative statistical analysis of the natural history of untreated idiopathic sudden sensorineural hearing loss (ISSNHL). STUDY TYPE AND DESIGN: A systematic review and meta-analyses. METHODS: Two independent searches of PubMed, Scopus, Web of Science, and Cochrane Library databases up to June 30, 2022, were performed. Adults with idiopathic sudden sensorineural hearing loss who received placebo or were untreated and had audiometric outcome measures in all study types were reviewed. These data indicative of the natural history of ISSNHL were analyzed, as were study characteristics related to risk of bias. Heterogeneity as assessed via I2 and random effects analyses were performed. RESULTS: Six studies meeting the inclusion criteria yielded 319 untreated patients whose natural history could be assessed. Heterogeneity among studies was moderate, with a variety of reported outcomes. A hearing improvement of at least 30 dB HL was observed in 36% (95% CI 0.28-0.44) of untreated patients, and of at least 10 dB HL was observed in 70% (95% CI 0.57-0.82) of untreated patients at 3 months. The mean hearing gain among untreated patients was 24.0 dB HL (95% CI 2.65-45.37) at 2-3 months. CONCLUSIONS: The observed natural history of ISSNHL suggests that patients can regain some hearing without active treatment. In the absence of future studies collecting prospective natural history data from untreated or placebo-treated ISSNHL patients, the data presented here provide the best available historical control data for reconsideration of results in past ISSNHL studies, as well as a roadmap for design and interpretation of future ISSNHL treatment clinical trials. Furthermore, knowing there is a statistically significant mean hearing gain of 24.0 dB HL in the untreated/placebo group provides an ethical basis for future placebo study of ISSNHL. The current status on ISSNHL management calls for a multi-institutional, randomized, double-blind placebo-controlled trial with validated outcome measures to provide science-based treatment guidance. Laryngoscope, 2024.

16.
Animal ; 18(7): 101196, 2024 May 23.
Artículo en Inglés | MEDLINE | ID: mdl-38917726

RESUMEN

In the realm of animal phenotyping, manual measurements are frequently utilised. While machine-generated data show potential for enhancing high-throughput breeding, additional research and validation are imperative before incorporating them into genetic evaluation processes. This research presents a method for managing meat sheep and collecting data, utilising the Sheep Data Recorder system for data input and the Sheep Body Size Collector system for image capture. The study aimed to investigate the genetic parameter changes of growth traits in Ujumqin sheep by comparing machine-generated measurements with manual measurements. The dataset consisted of 552 data points from the offspring of 75 breeding rams and 399 breeding ewes. Six distinct random regression models were assessed to pinpoint the most suitable model for estimating genetic parameters linked to growth traits. These models were distinguished based on the inclusion or exclusion of maternal genetic effects, maternal permanent environmental effects, and covariance between maternal and direct genetic effects. Fixed factors such as individual age, individual sex, and ewe age were taken into account in the analysis. The genetic parameters for the yearling growth traits of Ujumqin sheep were calculated using ASReml software. The Akaike information criterion, the Bayesian information criterion, and fivefold cross-validation were employed to identify the optimal model. Research findings indicate that the most accurate models for manually measured data revealed heritability estimates of 0.12 ± 0.15 for BW, 0.05 ± 0.07 for body slanting length, 0.03 ± 0.07 for withers height, 0.15 ± 0.12 for hip height, 0.11 ± 0.11 for chest depth, 0.13 ± 0.13 for shoulder width, and 0.53 ± 0.15 for chest circumference. The optimal models for machine-predicted data showed heritability estimates of 0.1 ± 0.09 for body slanting length, 0.14 ± 0.12 for withers height, 0.55 ± 0.15 for hip height, 0.34 ± 0.15 for chest depth, 0.26 ± 0.15 for shoulder width, and 0.47 ± 0.16 for chest circumference. In manually measured data, genetic correlations ranged from 0.35 to 0.99, while phenotypic correlations ranged from 0.07 to 0.90. In machine data, genetic correlations ranged from -0.05 to 0.99, while phenotypic correlations ranged from 0.03 to 0.84. The results suggest that machine-based estimations may lead to an overestimation of heritability, but this discrepancy does not impact the selection of breeding models.

17.
JCO Glob Oncol ; 10: e2300234, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38359370

RESUMEN

PURPOSE: Gut microbiota play an important role in human health, including cancer. Cancer and its treatment, in turn, may alter the gut microbiome. To understand this complex relationship, we profiled the gut microbiome of 356 Vietnamese patients with breast cancer. MATERIALS AND METHODS: Stool samples were collected before chemotherapy, with 162 pre- and 194 postsurgery. The gut microbiome was measured by shotgun metagenomic sequencing. Associations of gut microbial diversity, taxa abundance, and gut microbiome health index (GMHI) with sociodemographic, clinical factors, and tumor characteristics were evaluated. RESULTS: Postsurgery samples were associated with significantly lower α- and ß-diversities (P < .001) and showed significant differences in the abundance of 15% of 2,864 investigated taxa (false discovery rate [FDR] <0.1) compared with presurgery samples. An unhealthy gut microbiome was prevalent among patients with breast cancer, with a mean GMHI of -0.79 and -2.81 in pre- and postsurgery stool samples, respectively. In an analysis of 162 presurgery stool samples, diagnosis delay was significantly associated with lower α-diversity, variation in ß-diversity, an increased abundance of species Enorma massiliensis, and a decreased abundance of Faecalicoccus pleomorphus. High intake of fiber was significantly associated with lower α-diversity and a higher abundance of species belonging to Bifidobacterium, Prevotella, and Bacteroides gena (FDR < 0.1). We did not find that cancer stage and subtype, menopausal status, comorbidity, antibiotic use during 3 months before stool collection, or physical activity was significantly associated with α- and ß-diversities or GMHI although a few significant differences were observed in taxa abundance. CONCLUSION: Our study revealed that diagnosis delay, high fiber intake, and breast cancer surgery, which is always followed by antibiotic prophylaxis in Vietnam, led to a less diverse and unhealthy gut microbiome among patients with breast cancer.


Asunto(s)
Neoplasias de la Mama , Microbioma Gastrointestinal , Humanos , Femenino , Vietnam/epidemiología , Heces/microbiología , Metagenoma
19.
Allergy ; 68(4): 440-5, 2013 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-23346992

RESUMEN

BACKGROUND: A growing body of evidence has disclosed that allergic rhinitis (AR) is a systemic inflammatory disease. Inflammatory mediators and cells involved in AR have also been reported to be implicated in the process of atherosclerosis, which is relevant to the occurrence of erectile dysfunction (ED). Our objective was to explore the relationship between AR and future ED events. METHODS: From 1 January 2000 to 31 December 2008, we identified male patients, who were aged 18-55 years and newly diagnosed with AR from the Taiwan National Health Insurance Research Database. A control cohort without AR, which was matched for age, comorbidities and medications, was selected for comparison. The two cohorts were followed up until 31 December 2009 and observed for occurrence of ED by registry of ED diagnosis in the database. RESULTS: Of the 128,118 sampled male patients (64,059 AR patients vs 64,059 matched controls), 1455 (1.16%) experienced ED during a mean follow-up period of 5.82 years, including 844 (1.32% of the AR patients) from the AR cohort and 611 (0.95%) from the controls. Kaplan-Meier analysis revealed a tendency of AR patients to develop ED (log-rank test, P < 0.001). After adjusting confounder variables by Cox regression, subjects with AR experienced a 1.37-fold (95% CI, 1.24-1.52; P < 0.001) increase in incident ED. The risk of ED was higher in cases with more frequent clinical visits for AR and in cases needing medication more than 4 weeks. CONCLUSIONS: Patients with AR appeared to be at higher risk of future ED, possibly in a severity-dependent manner.


Asunto(s)
Disfunción Eréctil/complicaciones , Disfunción Eréctil/epidemiología , Rinitis Alérgica Perenne/complicaciones , Rinitis Alérgica Perenne/epidemiología , Adolescente , Adulto , Estudios de Casos y Controles , Comorbilidad , Bases de Datos Factuales , Humanos , Masculino , Persona de Mediana Edad , Vigilancia de la Población , Modelos de Riesgos Proporcionales , Estudios Retrospectivos , Rinitis Alérgica , Riesgo , Adulto Joven
20.
Bioorg Med Chem Lett ; 23(5): 1553-6, 2013 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-23333209

RESUMEN

AX10479, the phenyl amide of 4-hydroxy-8-methanesulfonylamino-quinoline-2-carboxylic acid, was identified as a Zn(2+)-dependent, 27nM inhibitor of human plasma Lp-PLA(2). Structure-activity relationship studies focused on the AX10479 2-phenylamide group identified equipotent cycloaliphatic amides, an enantioselective preference for chiral amides, and phenyl substitution patterns (e.g., 2-methyl-3-fluoro) that increased potency.


Asunto(s)
1-Alquil-2-acetilglicerofosfocolina Esterasa/antagonistas & inhibidores , Amidas/farmacología , Quinolinas/farmacología , Amidas/síntesis química , Amidas/química , Humanos , Quinolinas/síntesis química , Quinolinas/química , Estereoisomerismo , Relación Estructura-Actividad , Zinc/química
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