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Researchers are evaluating how family-based dietary counseling during pregnancy affects weight gain in pregnant women. This randomized controlled trial compares two approaches: one group receives diet counseling for the pregnant woman alone, while the other group involves both the pregnant woman and a companion from her household who shares at least one meal daily. The study focuses on women with a single pregnancy between 8 and 16 weeks and a starting BMI between 18.5 and 35. Participants are randomly assigned to either individual dietetic counseling, where only the pregnant woman receives guidance, or family-based dietetic counseling, where both the pregnant woman and her companion are counseled together. The counseling aims to monitor and manage gestational weight gain according to dietary recommendations. Women will be monitored to observe changes in maternal weight by the time of delivery. Researchers will assess how the different counseling methods influence pregnancy weight gain. The study involves regular evaluations and follow-up to track progress and ensure safety throughout the pregnancy period.

Very little information is available about hypoparathyroidism, a condition that can lead to complications such as low calcium symptoms, calcifications in various tissues, kidney stones, and kidney problems. No specific data exists for France, so researchers are gathering detailed information about the condition, its treatments, and related complications in French patients. This research aims to better understand how hypoparathyroidism affects people in France over about two years. No treatments or interventions will be given as part of this study. Instead, the study will collect and analyze existing data on patients diagnosed with chronic hypoparathyroidism who live in France. This approach allows researchers to observe real-world experiences without changing patient care. Participants will provide information that helps assess the overall patterns, treatments, and complications related to hypoparathyroidism. This includes tracking how common the condition is and monitoring any complications during the study. The study will continue until its completion, which is expected to be around two years, focusing on gathering comprehensive epidemiological data.