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1.
Eur J Obstet Gynecol Reprod Biol ; 294: 76-78, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38218162

RESUMEN

While cesarean deliveries performed for health indications can save lives, unnecessary cesareans cause unjustifiable health risks for the mother, newborn, and for future pregnancies. Previous recommendations for cesarean delivery rates at a country level in the 10-15% range are currently unrealistic, and the proposed concept that striving to achieve specific rates is not important has resulted in a confusing message reaching healthcare professionals and the public. It is important to have a clear understanding of when cesarean delivery rates are deviating from internationally acceptable ranges, to trigger the implementation of healthcare policies needed to correct this problem. Based on currently existing scientific evidence, we recommend that cesarean delivery rates at a country level should be in the 15-20% range. This advice is based on the demonstration of decreased maternal and neonatal mortalities when national cesarean delivery rates rise to circa 15%, but values exceeding 20% are not associated with further benefits. It is also based on real-world experiences from northern European countries, where cesarean delivery rates in the 15-20% range are associated with some of the best maternal and perinatal quality indicators in the world. With the increase in cesarean delivery rates projected for the coming years, experience in provision of intrapartum care may come under threat in many hospitals, and recovering from this situation is likely to be a major challenge. Professional and scientific societies, together with healthcare authorities and governments need to prioritize actions to reverse the upward trend in cesarean delivery rates observed in many countries, and to strive to achieve values as close as possible to the recommended range.


Asunto(s)
Partería , Embarazo , Femenino , Recién Nacido , Humanos , Cesárea , Madres , Mortalidad Infantil , Hospitales
2.
Yale J Biol Med ; 96(2): 205-210, 2023 06.
Artículo en Inglés | MEDLINE | ID: mdl-37396975

RESUMEN

Climate change and environmental health are closely linked with agriculture and food supply. The environment influences accessibility, quality, and variety of foods and drinks that are available for consumption, which in turn influences population health. A growing area of research is the role of dietary intake of nutrients and how they may influence risk for skin cancer. In recent years, our group has studied dietary nutrients, particularly those found in commonly consumed beverages, such as those containing caffeine, citrus products, and alcohol, in large prospective cohorts to evaluate how their intake may influence risk for skin cancer. Our data suggest that intake of citrus juices, when consumed around once per day or more, or around 5 to 6 times per week, may be associated with increased risk for both keratinocyte carcinomas (KC) and malignant melanoma (MM). With regards to alcohol consumption, we have found that intake of white wine may be associated with increased risk for both KC and MM, while beer and red wine have not shown such associations. Lastly, our work suggests caffeinated beverages, including coffee, tea, and cola, may be associated with decreased risk for basal cell carcinoma (BCC) and MM. While the associations between food intake and skin cancer development are complex, and remain to be further analyzed in future studies, we hope that our summary may help guide individuals to small changes they may make towards potentially reducing their risk for certain skin cancers.


Asunto(s)
Citrus , Neoplasias Cutáneas , Café/efectos adversos , Estudios Prospectivos , Neoplasias Cutáneas/epidemiología , Neoplasias Cutáneas/etiología , Etanol , Melanoma Cutáneo Maligno
3.
JAMA Netw Open ; 4(11): e2135452, 2021 11 01.
Artículo en Inglés | MEDLINE | ID: mdl-34846527

RESUMEN

Importance: An international expert committee recently revised its recommendations on amino acid intake for very preterm infants, suggesting that more than 3.50 g/kg/d should be administered only to preterm infants in clinical trials. However, the optimal amino acid intake during the first week after birth in these infants is unknown. Objective: To evaluate the association between early amino acid intake and cognitive outcomes at age 5 years. Design, Setting, and Participants: Using the EPIPAGE-2 (Epidemiologic Study on Small-for-Gestational-Age Children-Follow-up at Five and a Half Years) cohort, a nationwide prospective population-based cohort study conducted at 63 neonatal intensive care units in France, a propensity score-matched analysis was performed comparing infants born at less than 30 weeks' gestation who had high amino acid intake (3.51-4.50 g/kg/d) at 7 days after birth with infants who did not. Participants were recruited between April 1 and December 31, 2011, and followed up from September 1, 2016, to December 31, 2017. Full-scale IQ (FSIQ) was assessed at age 5 years. A confirmatory analysis used neonatal intensive care unit preference for high early amino acid intake as an instrumental variable to account for unmeasured confounding. Statistical analysis was performed from January 15 to May 15, 2021. Exposures: Amino acid intake at 7 days after birth. Main Outcomes and Measures: The primary outcome was an FSIQ score greater than -1 SD (ie, ≥93 points) at age 5 years. A complementary analysis was performed to explore the association between amino acid intake at day 7 as a continuous variable and FSIQ score at age 5 years. Data from cerebral magnetic resonance imaging at term were available for a subgroup of preterm infants who participated in the EPIRMEX (Cerebral Abnormalities Detected by MRI, Realized at the Age of Term and the Emergence of Executive Functions) ancillary study. Results: Among 1789 preterm infants (929 boys [51.9%]; mean [SD] gestational age, 27.17 [1.50] weeks) with data available to determine exposure to amino acid intake of 3.51 to 4.50 g/kg/d at 7 days after birth, 938 infants were exposed, and 851 infants were not; 717 infants from each group could be paired. The primary outcome was known in 396 of 646 exposed infants and 379 of 644 nonexposed infants who were alive at age 5 years and was observed more frequently among exposed vs nonexposed infants (243 infants [61.4%] vs 206 infants [54.4%], respectively; odds ratio [OR], 1.33 [95% CI, 1.00-1.71]; absolute risk increase in events [ie, the likelihood of having an FSIQ score >-1 SD at age 5 years] per 100 infants, 7.01 [95% CI, 0.06-13.87]; P = .048). In the matched cohort, correlation was found between amino acid intake per 1.00 g/kg/d at day 7 and FSIQ score at age 5 years (n = 775; ß = 2.43 per 1-point increase in FSIQ; 95% CI, 0.27-4.59; P = .03), white matter area (n = 134; ß = 144 per mm2; 95% CI, 3-285 per mm2; P = .045), anisotropy of the corpus callosum (n = 50; ß = 0.018; 95% CI, 0.016-0.021; P < .001), left superior longitudinal fasciculus (n = 42; ß = 0.018; 95% CI, 0.010-0.025; P < .001), and right superior longitudinal fasciculus (n = 42; ß = 0.014 [95% CI, 0.005-0.024; P = .003) based on magnetic resonance imaging at term. Confirmatory and sensitivity analyses confirmed these results. For example, the adjusted OR for the association between the exposure and the primary outcome was 1.30 (95% CI, 1.16-1.46) using the instrumental variable approach among 978 participants in the overall cohort, and the adjusted OR was 1.35 (95% CI, 1.05-1.75) using multiple imputations among 1290 participants in the matched cohort. Conclusions and Relevance: In this cohort study, high amino acid intake at 7 days after birth was associated with an increased likelihood of an FSIQ score greater than -1 SD at age 5 years. Well-designed randomized studies with long-term follow-up are needed to confirm the benefit of this nutritional approach.


Asunto(s)
Aminoácidos/normas , Aminoácidos/uso terapéutico , Desarrollo Infantil/efectos de los fármacos , Edad Gestacional , Enfermedades del Prematuro/tratamiento farmacológico , Inteligencia/efectos de los fármacos , Guías de Práctica Clínica como Asunto , Preescolar , Estudios de Cohortes , Femenino , Francia , Humanos , Lactante , Recién Nacido , Masculino , Estudios Prospectivos , Resultado del Tratamiento
4.
Nutrients ; 11(2)2019 Feb 15.
Artículo en Inglés | MEDLINE | ID: mdl-30769937

RESUMEN

We thank Bernard and colleagues for their careful reading and interest in our article Effects on Fatty Acid Metabolism of a New Powdered Human Milk Fortifier Containing Medium-Chain Triacylglycerols and Docosahexaenoic Acid in Preterm Infants [...].


Asunto(s)
Recien Nacido Prematuro , Leche Humana , Ácido Araquidónico , Ácidos Docosahexaenoicos , Humanos , Lactante , Recién Nacido , Nutrientes
5.
Nutrients ; 10(6)2018 May 29.
Artículo en Inglés | MEDLINE | ID: mdl-29843467

RESUMEN

Preterm infants require fortification of human milk (HM) with essential fatty acids (FA) to ensure adequate post-natal development. As part of a larger randomized controlled study, we investigated FA metabolism in a subset of 47 clinically stable preterm infants (birth weight ≤1500 g or gestational age ≤32 weeks). Infants were randomized to receive HM supplemented with either a new HM fortifier (nHMF; n = 26) containing 12.5 g medium-chain FA (MCFA), 958 mg linoleic acid (LA), 417 mg α-linolenic acid (ALA), and 157 mg docosahexaenoic acid (DHA) per 100 g of powder (in compliance with the latest guidelines) or a fat-free HMF (cHMF; n = 21). Plasma phospholipid (PL) and triacylglycerol (TAG), and red blood cell phosphatidylcholine (RBC-PC) and phosphatidylethanolamine (RBC-PE) FA profiles were assessed before and after 21 days of feeding. In the nHMF group, significantly increased levels of n-9 monounsaturated fatty acids were observed, formed most likely by elongation and desaturation of dietary saturated fatty acids present in HM. ALA fortification increased ALA assimilation into plasma TAG. Similarly, DHA fortification enriched the DHA content in RBC-PE, which, in this compartment, was not associated with lower arachidonic acid levels as observed in plasma TAG and phospholipids. RBC-PE, a reliable indicator of FA metabolism and accretion, was the most sensitive compartment in this study.


Asunto(s)
Ácidos Docosahexaenoicos/sangre , Alimentos Fortificados/análisis , Fórmulas Infantiles/química , Recien Nacido Prematuro/sangre , Metabolismo de los Lípidos , Triglicéridos/sangre , Ácido Araquidónico/sangre , Carbohidratos de la Dieta/administración & dosificación , Grasas de la Dieta/administración & dosificación , Proteínas en la Dieta/administración & dosificación , Ácidos Docosahexaenoicos/administración & dosificación , Método Doble Ciego , Eritrocitos/metabolismo , Ácidos Grasos Esenciales/administración & dosificación , Ácidos Grasos Esenciales/sangre , Ácidos Grasos Monoinsaturados/sangre , Femenino , Humanos , Recién Nacido , Recien Nacido Prematuro/crecimiento & desarrollo , Ácido Linoleico/administración & dosificación , Ácido Linoleico/sangre , Masculino , Leche Humana , Fosfatidilcolinas/sangre , Fosfatidiletanolaminas/sangre , Polvos , Triglicéridos/administración & dosificación , Ácido alfa-Linolénico/administración & dosificación , Ácido alfa-Linolénico/sangre
6.
J Pediatr Gastroenterol Nutr ; 65(4): e83-e93, 2017 10.
Artículo en Inglés | MEDLINE | ID: mdl-28727654

RESUMEN

OBJECTIVES: The aim of this study was to assess growth and nutritional biomarkers of preterm infants fed human milk (HM) supplemented with a new powdered HM fortifier (nHMF) or a control HM fortifier (cHMF). The nHMF provides similar energy content, 16% more protein (partially hydrolyzed whey), and higher micronutrient levels than the cHMF, along with medium-chain triglycerides and docosahexaenoic acid. METHODS: In this controlled, multicenter, double-blind study, a sample of preterm infants ≤32 weeks or ≤1500 g were randomized to receive nHMF (n = 77) or cHMF (n = 76) for a minimum of 21 days. Weight gain was evaluated for noninferiority (margin = -1 g/day) and superiority (margin = 0 g/day). Nutritional status and gut inflammation were assessed by blood, urine, and fecal biochemistries. Adverse events were monitored. RESULTS: Adjusted mean weight gain (analysis of covariance) was 2.3 g/day greater in nHMF versus cHMF; the lower limit of the 95% CI (0.4 g/day) exceeded both noninferiority (P < 0.001) and superiority margins (P = 0.01). Weight gain rate (unadjusted) was 18.3 (nHMF) and 16.8 g ·â€Škg ·â€Šday (cHMF) between study days 1 and 21 (D1-D21). Length and head circumference (HC) gains between D1 and D21 were not different. Adjusted weight-for-age z score at D21 and HC-for-age z score at week 40 corrected age were greater in nHMF versus cHMF (P = 0.013, P = 0.003 respectively). nHMF had higher serum blood urea nitrogen, pre-albumin, alkaline phosphatase, and calcium (all within normal ranges; all P ≤ 0.019) at D21 versus cHMF. Both HMFs were well tolerated with similar incidence of gastrointestinal adverse events. CONCLUSIONS: nHMF providing more protein and fat compared to a control fortifier is safe, well-tolerated, and improves the weight gain of preterm infants.


Asunto(s)
Alimentos Fortificados , Cuidado del Lactante/métodos , Fenómenos Fisiológicos Nutricionales del Lactante , Recien Nacido Prematuro/crecimiento & desarrollo , Recién Nacido de muy Bajo Peso/crecimiento & desarrollo , Leche Humana , Estado Nutricional , Biomarcadores/metabolismo , Grasas de la Dieta , Proteínas en la Dieta , Método Doble Ciego , Femenino , Humanos , Recién Nacido , Recien Nacido Prematuro/metabolismo , Recién Nacido de muy Bajo Peso/metabolismo , Masculino , Evaluación Nutricional , Evaluación de Resultado en la Atención de Salud , Aumento de Peso
7.
Pediatr Res ; 62(1): 14-9, 2007 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-17515828

RESUMEN

The 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) inhibits the mitochondrial complex I of the respiratory chain. This results in ATP and ion homeostasis disturbances, which lead to selective death of the substantia nigra dopaminergic neurons. Well known as a Parkinson's disease model, the MPTP animal model also provides a potential paradigm of the energy deficiencies found in childhood. In these conditions, anticonvulsants may provide neuroprotection by limiting cellular energy consumption. We tested valproate, topiramate and lamotrigine in the MPTP mouse model. Dopamine transporter (DAT) density was assessed by quantitative autoradiography, tyrosine hydroxylase (TH) was evaluated by immunohistochemistry and dopamine (DA) levels by HPLC-ED whereas neuronal apoptosis was monitored through active caspase-3. Expectedly, the DAT density, TH immunoreactive neurons and DA content in the MPTP group were respectively reduced to 51%, 40% and 26% versus control animals. Unlike valproate and topiramate, lamotrigine provided a significant neuroprotection against MPTP in maintaining these levels at 99%, 74% and 58% respectively and reducing the induced apoptosis. Altogether, the data indicate that lamotrigine limits dopaminergic neuronal death in the substantia nigra and promotes striatal dendrites sprouting. Lamotrigine, a widely used and well-tolerated molecule in young patients, could represent a valuable adjuvant therapy in various energy deficiency conditions during childhood.


Asunto(s)
1-Metil-4-fenil-1,2,3,6-Tetrahidropiridina/metabolismo , Anticonvulsivantes/metabolismo , Dopaminérgicos/metabolismo , Metabolismo Energético , Fármacos Neuroprotectores/metabolismo , Neurotoxinas/metabolismo , Triazinas/metabolismo , Animales , Anticonvulsivantes/química , Apoptosis/fisiología , Cuerpo Estriado/citología , Cuerpo Estriado/metabolismo , Dopamina/metabolismo , Dopaminérgicos/toxicidad , Fructosa/análogos & derivados , Fructosa/metabolismo , Lamotrigina , Masculino , Ratones , Ratones Endogámicos C57BL , Fármacos Neuroprotectores/química , Neurotoxinas/toxicidad , Topiramato , Triazinas/química , Ácido Valproico/metabolismo
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