Publications by authors named "Vaast P"

Introduction: Breeding programs have developed high-yielding Coffea arabica F1-hybrids as an adaptation against adverse conditions associated with climate change. However, theresponse to drought of coffee F1 hybrids has seldom been assessed.

Methods: A trial was established with five C.

View Article and Find Full Text PDF

Worldwide coffee production, especially Arabica coffee, is threatened by climatic change, plants diseases and vulnerability of smallholders. Meanwhile, consumers' demand for socially and environmentally sustainable products is steadily increasing, driving the engagement of stakeholders in agro-ecological and social initiatives. Here we present a new organizational model, the "Coffee agroforestry business-driven cluster" (CaFC), which aims at preserving ecosystems while offering producers a fair income.

View Article and Find Full Text PDF

Climate models predict decreasing precipitation and increasing air temperature, causing concern for the future of cocoa in the major producing regions worldwide. It has been suggested that shade could alleviate stress by reducing radiation intensity and conserving soil moisture, but few on-farm cocoa studies are testing this hypothesis. Here, for 33 months, we subjected twelve-year cocoa plants in Ghana to three levels of rainwater suppression (full rainwater, 1/3 rainwater suppression and 2/3 rainwater suppression) under full sun or 40 % uniform shade in a split plot design, monitoring soil moisture, physiological parameters, growth, and yield.

View Article and Find Full Text PDF

Background: The vast majority of prenatally diagnosed congenital pulmonary malformations (CPM) remain asymptomatic at birth. The maximal value of the CPM volume ratio (CVRmax) predicts the risk of neonatal respiratory distress (NRD), and should allow for better assessment of the level of expertise needed at the delivery site.

Aim: This study evaluated the level of maternity units currently chosen for the delivery of CPMs, and determined the impact of the choice of delivery site based on the CVRmax, with a threshold of 0.

View Article and Find Full Text PDF

Background: Congenital diaphragmatic hernia (CDH) is a rare disease associated with major nutritional and digestive morbidities. Oral feeding autonomy remains a major issue for the care and management of these patients. The aim of this study was to specify the perinatal risk factors of delayed oral feeding autonomy in patients treated for CDH.

View Article and Find Full Text PDF

Background: The effects of the environment and genotype in the coffee bean chemical composition were studied using nine trials covering an altitudinal gradient [600-1100 m above sea level (a.s.l.

View Article and Find Full Text PDF

Congenital diaphragmatic hernia (CDH) is associated with pulmonary hypoplasia and respiratory morbidity. To assess whether respiratory morbidity during the first 2 years of life in infants with left-sided CDH is associated with fetal lung volume (FLV) evaluated by the observed-to-expected FLV ratio (o/e FLV) on antenatal magnetic resonance imaging (MRI). In this retrospective study, o/e FLV measures were collected.

View Article and Find Full Text PDF

Background: To define a threshold of maternal antibodies at risk of severe fetal anemia in patients followed for anti-RH1 alloimmunization (AI).

Study, Design, And Methods: We conducted a retrospective study of patients followed for anti-RH1 AI at the Lille University Hospital. The first group, severe anemia, included patients who received one or more in utero transfusions (IUT) or who were induced before 37 weeks of pregnancy for suspected severe fetal anemia.

View Article and Find Full Text PDF

Our objective is to determine perinatal factors contributing to the development of pulmonary hypertension (PH) in patients with isolated giant omphaloceles (GO). All cases of omphaloceles that underwent prenatal and postnatal care at the University Hospital of Lille between 1996 and 2021 were reviewed. We included all infants with isolated GO, including at least a part of the liver, who were treated by delayed surgical closure.

View Article and Find Full Text PDF

Congenital diaphragmatic hernia (CDH) is associated with abnormal pulmonary development, which is responsible for pulmonary hypoplasia with structural and functional abnormalities in pulmonary circulation, leading to the failure of the cardiorespiratory adaptation at birth. Despite improvement in treatment options and advances in neonatal care, mortality remains high, at close to 15 to 30%. Several risk factors of mortality and morbidities have been validated in fetuses with CDH.

View Article and Find Full Text PDF

Hydrolethalus syndrome (HLS) is a rare lethal fetal malformation disorder related to ciliogenesis disruption. This condition is more frequent in Finland where a founder missense variant in the HYLS1 gene was identified. No other HYLS1 variant has hitherto been implicated in HLS.

View Article and Find Full Text PDF

Resuscitation at birth of infants with Congenital Diaphragmatic Hernia (CDH) remains highly challenging because of severe failure of cardiorespiratory adaptation at birth. Usually, the umbilical cord is clamped immediately after birth. Delaying cord clamping while the resuscitation maneuvers are started may: (1) facilitate blood transfer from placenta to baby to augment circulatory blood volume; (2) avoid loss of venous return and decrease in left ventricle filling caused by immediate cord clamping; (3) prevent initial hypoxemia because of sustained uteroplacental gas exchange after birth when the cord is intact.

View Article and Find Full Text PDF
Article Synopsis
  • This study aimed to evaluate if the side (right or left) of congenital diaphragmatic hernia (CDH) influences the survival chances of newborns in intensive care.
  • Analyzed data from 506 cases showed a higher survival rate for left CDH (74%) compared to right CDH (49%), but the side alone wasn’t directly linked to increased mortality after accounting for other factors.
  • Key findings indicated that liver herniation and lung-to-head ratio are significant predictors of mortality, while the laterality of CDH did not significantly affect survival rates after adjustments.
View Article and Find Full Text PDF

Esophageal atresia (EA) is prenatally diagnosed in less than one third of the cases and is usually only suspected. Recently, magnetic resonance imaging (MRI) with dynamic sequence and biochemistry of the amniotic fluid have been proposed to enhance prenatal diagnosis of EA. We report the case of a triple negative screening (ultrasound, MRI with dynamic sequence and biochemistry of the amniotic fluid) with a postnatal diagnosis of EA type III with a small defect.

View Article and Find Full Text PDF

Background: Almost 20% of parvovirus B19 foetal infections require intrauterine transfusions. In addition, myocardial dysfunction has been observed in severe parvovirus B19 infections. One objective of an intrauterine exchange transfusion (IUET) is to avoid an overload during the transfusion.

View Article and Find Full Text PDF

Intensive monoculture coffee farms quickly expanded in Yunnan Province in the 1990's and 2000's. In 2012, local authorities in Pu'er and Xishuangbanna Prefectures, the main coffee producing centre in the province, initiated a large-scale conversion program of these farms towards coffee-agroforestry systems to promote "ecologically-friendly coffee". Shade tree inventories and household interviews were conducted in these two prefectures to characterize coffee farms and the Local Ecological Knowledge (LEK) of farmers on the provision of ecosystem services by associated tree species.

View Article and Find Full Text PDF

Introduction: Intrauterine transfusion (IUT) has changed fetal anemia prognosis. However, long-term neurodevelopmental outcome is altered in 5% of children. Our objective was to study the contribution of fetal MRI to diagnosis brain lesions in case of fetal anemia.

View Article and Find Full Text PDF

Reduced climatic suitability due to climate change in cocoa growing regions of Ghana is expected in the coming decades. This threatens farmers' livelihood and the cocoa sector. Climate change adaptation requires an improved understanding of existing cocoa production systems and farmers' coping strategies.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigates how different maternal red blood cell (RBC) antibodies affect the treatment and outcomes of fetal anemia during pregnancies from 1999 to 2015.
  • It compares three types of antibody responses: anti-D, other Rh group antibodies, and anti-K1, finding that anti-K1 causes more severe fetal anemia than anti-D.
  • Additionally, having anti-D alongside other antibodies leads to a quicker decrease in hemoglobin levels compared to isolated anti-D cases.
View Article and Find Full Text PDF
Article Synopsis
  • * If AI is present, further tests like fetal genotyping and ultrasound are done to monitor the condition and screen for severe anemia before complications like hydrops fetalis arise.
  • * Treatment for severe anemia includes intrauterine transfusion (IUT) or inducing labor, with IUT leading to a high survival rate of over 90%, though it carries a risk of neurodevelopmental impairment in about 4.8% of treated infants.
View Article and Find Full Text PDF

Efforts have been made in recent years to improve knowledge about soil greenhouse gas (GHG) fluxes from sub-Saharan Africa. However, data on soil GHG emissions from smallholder coffee-dairy systems have not hitherto been measured experimentally. This study aimed to quantify soil GHG emissions at different spatial and temporal scales in smallholder coffee-dairy farms in Murang'a County, Central Kenya.

View Article and Find Full Text PDF
Article Synopsis
  • Cocoa agroforestry systems, which include shade trees, were studied to evaluate their resilience compared to cocoa grown in full sun under extreme climate conditions.
  • Unexpectedly, the two shade tree species used in the study created strong competition for water, which negatively impacted the cocoa plants' growth.
  • This finding challenges the assumption that shade trees will always provide beneficial effects for cocoa cultivation in harsh climates.
View Article and Find Full Text PDF

Unlabelled: The French Rare Disease Reference Center for congenital diaphragmatic hernia (CDH) was created in 2008, to implement a national protocol for foetuses and children with this serious condition. Neonatal mortality from CDH is 30-40%, mainly due to pulmonary hypoplasia and persistent pulmonary hypertension, and half of those who live have high respiratory, nutritional and digestive morbidity. CDH management requires long-term and specialised multidisciplinary care.

View Article and Find Full Text PDF

Cocoa agroforestry is perceived as potential adaptation strategy to sub-optimal or adverse environmental conditions such as drought. We tested this strategy over wet, dry and extremely dry periods comparing cocoa in full sun with agroforestry systems: shaded by (i) a leguminous tree species, Albizia ferruginea and (ii) Antiaris toxicaria, the most common shade tree species in the region. We monitored micro-climate, sap flux density, throughfall, and soil water content from November 2014 to March 2016 at the forest-savannah transition zone of Ghana with climate and drought events during the study period serving as proxy for projected future climatic conditions in marginal cocoa cultivation areas of West Africa.

View Article and Find Full Text PDF