Aim: This study analysed the changes in growth velocity (GV) of preterm infants weighing <1500 g based on different nutritional practices over a 24-year period.
Methods: A retrospective study with prospectively collected data was performed in a level three Spanish neonatal intensive care unit. Data on birthweight, gestational age (GA) and GV were collected from 1990 to 2013 and breastfeeding data were gathered from 2000. A generalised linear model corrected by GA and small for gestational age was applied. Multiple mean comparisons between the levels of the variables of interest were performed using the Tukey test.
Results: We included 1651 children in the study. The average GA in 1990-1991 was 30.48 ± 2.89 and the average GA in 2012-2013 was 28.79 ± 2.58 (p < 0.01). Significant differences were found when we compared the adjusted GV between the first and last study periods. The most important differences appeared between 1990 and 2013, when the GV increased by 3.27 ± 0.5 g/kg/day (p < 0.01). The breastfeeding rate in 2000-2001 was 47.95% and in 2012-2013 it was 73.58% (p = 0.0002).
Conclusion: Introducing nutritional practices such as the increased use of breastmilk and the breastfeeding rate improved GV over the study period.
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http://dx.doi.org/10.1111/apa.13788 | DOI Listing |
Sci Total Environ
January 2025
Department of Geosciences, Atmospheric Science Division, Texas Tech University, Lubbock, TX, USA; National Wind Institute, Texas Tech University, Lubbock, TX, USA. Electronic address:
Understanding the kinematics of aerosol horizontal transport and vertical mixing near the surface, within the atmospheric boundary layer (ABL), and in the overlying free troposphere (FT) is critical for various applications, including air quality and weather forecasting, aviation, road safety, and dispersion modeling. Empirical evidence of aerosol mixing processes within the ABL during synoptic-scale events over arid and semiarid regions (i.e.
View Article and Find Full Text PDFUltrasonics
January 2025
College of Aerospace Engineering, Chongqing University, Chongqing 400044, China. Electronic address:
This study delves into the feasibility of leveraging quasi-static component (QSC) generation during primary Lamb wave propagation to discern subtle alterations in the interfacial properties of a two-layered plate. Unlike the second-harmonic generation of Lamb waves, QSC generation doesn't necessitate precise phase-velocity matching but rather requires an approximate matching of group velocities to ensure the emergence of cumulative growth effects. This unique characteristic empowers the QSC-based nonlinear ultrasonic method to effectively surmount the limitations associated with inherent dispersion and multimode traits of Lamb wave propagation.
View Article and Find Full Text PDFHum Reprod
January 2025
IRSD, Université de Toulouse, INSERM, INRAE, ENVT, Univ Toulouse III-Paul Sabatier (UPS), Toulouse, France.
Study Question: Does a human fallopian tube (HFT) organoid model offer a favourable apical environment for human sperm survival and motility?
Summary Answer: After differentiation, the apical compartment of a new HFT organoid model provides a favourable environment for sperm motility, which is better than commercial media.
What Is Known Already: HFTs are the site of major events that are crucial for achieving an ongoing pregnancy, such as gamete survival and competence, fertilization steps, and preimplantation embryo development. In order to better understand the tubal physiology and tubal factors involved in these reproductive functions, and to improve still suboptimal in vitro conditions for gamete preparation and embryo culture during IVF, we sought to develop an HFT organoid model from isolated adult stem cells to allow spermatozoa co-culture in the apical compartment.
Orphanet J Rare Dis
December 2024
Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
Background: Meier-Gorlin syndrome (MGORS) is a rare autosomal inherited form of primordial dwarfism. Pathogenic variants in 13 genes involved in DNA replication initiation have been identified in this disease, but homozygous intronic variants have never been reported. Additionally, whether growth hormone (GH) treatment can increase the height of children with MGORS is unclear.
View Article and Find Full Text PDFJ Dev Orig Health Dis
January 2025
Danone Research & Innovation Center, Utrecht, The Netherlands.
The nutritional environment during fetal and early postnatal life has a long-term impact on growth, development, and metabolic health of the offspring, a process termed "nutritional programming." Rodent models studying programming effects of nutritional interventions use either purified or grain-based rodent diets as background diets. However, the impact of these diets on phenotypic outcomes in these models has not been comprehensively investigated.
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