hrp0095p1-145 | Pituitary, Neuroendocrinology and Puberty | ESPE2022

Spatial navigation and memory in transgender male adolescents treated with gender affirming hormones

Perl Liat , Oren Asaf , C. Mueller Sven , Raphael Ido , Borger Ophir , Sheppes Tamar , Shechner Tomer

Background: Spatial navigation is an essential human skill that helps individuals track their changes in position and orientation by integrating self-motion cues. Meta-analyses indicate that males, on average, perform better than females on a number of spatial tasks. Sex steroids, mainly androgens, modulate the remodeling of synapses in the prefrontal cortex and hippocampus, a limbic brain area with critical influence on spatial and contextual memory. Androgen...

hrp0094p2-201 | Fat, metabolism and obesity | ESPE2021

Weight status and body composition of children and adolescents during the COVID-19 pandemic

Brener Avivit , Azoulay Erez , Yackobovitch-Gavan Michal , Lopez Adar , Sheppes Tamar , Yaacov Hadar , Gilboa Inbar , Waksman Yarden , Lebenthal Yael ,

Background: The COVID-19 pandemic has tremendous effects on lifestyle that could potentially cause health-related problems. Therefore, extreme preventive measures were taken, including the closure of schools and after school activities. This dramatic alteration in daily routine could lead to adverse consequence of increasing obesity. In this study we aimed to investigate the change in weight status and body composition parameters of children and adolescents du...

hrp0095p1-368 | Sex Differentiation, Gonads and Gynaecology, and Sex Endocrinology | ESPE2022

Gender dimorphism in transgender youth – hormonal therapy and the balance between muscle, adipose tissue and cardiometabolic alterations

Borger Ophir , Oren Asaf , Perl Liat , Yackobovitch-Gavan Michal , Sheppes Tamar , Brener Avivit , Elkon-Tamir Erella , Israeli Galit , Segev-Becker Anat , Lebenthal Ophir Yael

Context: Given the importance of sex hormones in metabolic regulation, dynamics in body composition and cardiometabolic alterations may occur in transgender persons receiving gender-affirming hormone (GAH) therapy.Objectives: Our aim was to explore the association between muscle-to-fat ratio (MFR) and the risk for metabolic syndrome components in transgender youth.Methods: In 71 tr...

hrp0089p3-p397 | Thyroid P3 | ESPE2018

Head Circumference, Birth Length, and Weight of Neonates of Mothers with Hypothyroidism

Laron-Kenet Tamar , Silbergeld Aviva , Lilos Pearl , Laron Zvi

Background: The number of publication on head size of newborns of hypothyroid mothers is scant.Aim: To study concomitantly head circumference, birth length and weight in such neonates.Method: Data was retrieved from computerized medical records of our hospital.Results: One hundred and thirty nine neonates (82 males and 57 females) from a total of 18,538 deliveries at the Rabin Medical Center during the years ...

hrp0095lb21 | Late Breaking | ESPE2022

Glucose levels are not the same for everyone: A real-world big data study evaluating glucose levels by sex and age among children

Avnon Ziv Carmit , Banon Tamar , BenTov Amir , Aeurbach Adi , Hirsch Harry , Levy Khademi Floris

Purpose: Understanding the normal range of laboratory values as pertained to different age groups and males or females is paramount in health care delivery. We aimed to assess the distribution of glucose levels by age and sex in the general population of children using a large-scale population-based cohort.Methods: A retrospective study with real-world de-identified data from a large, state mandated health fund in Israel...

hrp0082p2-d1-536 | Puberty and Neuroendocrinology | ESPE2014

Monitoring GnRH Analog Treatment in Girls with Central Precocious Puberty: a Comparison of Four Methods

Zung Amnon , Burundukov Ella , Ulman Mira , Glaser Tamar , Chen Malka , Zadik Zvi

Background: The gold standard for adequate hormonal suppression during GnRHa treatment for precocious puberty (PP) is attenuated serum LH levels in response to LHRH stimulation.Objective and hypotheses: We aimed to compare basal and post-GnRHa levels of LH to LHRH stimulation test, and to evaluate first-voided urinary LH (ULH) as a non-invasive alternative method for monitoring treatment.Method: Seventeen girls with PP were followe...

hrp0092p1-32 | Diabetes and Insulin | ESPE2019

Heterozygous RFX6 Mutation as a Cause of Diabetes Mellitus in a Multigenerational Family

Zuckerman Levin Nehama , Paperna Tamar , Hershkovitz Tova , Mory Adi , Kurolap Alina , Mahameed Jamal , Feldman Hagit Baris , Shehadeh Naim

Background: Monogenic diabetes mellitus (DM) is an early-onset, non- autoimmune diabetes. Genetic diagnosis can personalize patient management and lead to prevention. We describe four generations of DM in one family, caused by a heterozygous mutation in the RFX6 gene. RFX6 (Regulatory factor X, 6) is essential for the development of the endocrine pancreas. Mutations in RFX6 can cause neonatal (Mitchell-Riley syndrome) as well as childhood DM,...

hrp0084p2-460 | Growth | ESPE2015

Individuals with Cow’s Milk Allergy are at Risk for not Reaching their Growth Potential

Sinai Tali , Amitzur-Levy Roni , Nachshon Liat , Yihye Tamar , Goldberg Michael R , Monsonego-Ornan Efrat , Katz Yitzhak

Background: Poor growth and inadequate nutrient intake by food allergic children have been suggested, particularly for children avoiding milk.Objective and hypotheses: To investigate the impact of a dairy-free diet on the final stature of IgE-mediated Cow Milk Allergy (IgE-CMA) young adults.Method: Anthropometric data was measured in 60 IgE-CMA patients (20.4±3.4 years old, 26 males (43%)) and 36 volunteers without IgE-CMA (co...