TY  - JOUR
A1  - Boeker, Sonja
A1  - Hermanussen, Michael
A1  - Scheffler, Christiane
T1  - Dental age is an independent marker of biological age
JF  - Human biology and public health
N2  - Background: Biological age markers are a crucial indicator whether children are decelerated in growth tempo. Skeletal maturation is the standard measure. Yet, it relies on exposing children to x-radiation. Dental eruption is a potential, but highly debated, radiation free alternative. 

Objectives: We assess the interrelationship between dental eruption and other maturational markers. We hypothesize that dental age correlates with body height and skeletal age. We further evaluate how the three different variables behave in cohorts from differing social backgrounds.

Sample and Method: Dental, skeletal and height data from the 1970s to 1990s from Guatemalan boys were converted into standard deviation scores, using external references for each measurement. The boys, aged between 7 and 12, derived from different social backgrounds (middle SES (N = 6529), low-middle SES (N = 736), low SES Ladino (N = 3653) and low SES Maya (N = 4587).

Results: Dental age shows only a weak correlation with skeletal age (0.18) and height (0.2). The distinction between cohorts differs according to each of the three measurements. All cohorts differ significantly in height. In skeletal maturation, the middle SES cohort is significantly advanced compared to all other cohorts. The periodically malnourished cohorts of low SES Mayas and Ladinos are significantly delayed in dental maturation compared to the well-nourished low-middle and middle class Ladino children.

Conclusion: Dental development is an independent system, that is regulated by different mechanisms than skeletal development and growth. Tooth eruption is sensitive to nutritional status, whereas skeletal age is more sensitive to socioeconomic background.
KW  - dental eruption
KW  - biological age
KW  - skeletal age
KW  - growth tempo
KW  - maturation
KW  - malnutrition
Y1  - 2022
U6  - https://doi.org/10.52905/hbph2021.3.24
SN  - 2748-9957
VL  - 2021
IS  - 3, Summer School Supplement
PB  - Universitätsverlag Potsdam
CY  - Potsdam
ER  - 
TY  - JOUR
A1  - Scheffler, Christiane
A1  - Hermanussen, Michael
T1  - What does stunting tell us?
JF  - Human biology and public health
N2  - Stunting is commonly linked with undernutrition. Yet, already after World War I, German pediatricians questioned this link and stated that no association exists between nutrition and height. Recent analyses within different populations of Low- and middle-income countries with high rates of stunted children failed to support the assumption that stunted children have a low BMI and skinfold sickness as signs of severe caloric deficiency. So, stunting is not a synonym of malnutrition. Parental education level has a positive influence on body height in stunted populations, e.g., in India and in Indonesia. Socially disadvantaged children tend to be shorter and lighter than children from affluent families.
Humans are social mammals; they regulate growth similar to other social mammals. Also in humans, body height is strongly associated with the position within the social hierarchy, reflecting the personal and group-specific social, economic, political, and emotional environment. These non-nutritional impact factors on growth are summarized by the concept of SEPE (Social-Economic-Political-Emotional) factors. SEPE reflects on prestige, dominance-subordination, social identity, and ego motivation of individuals and social groups.
KW  - SEPE Factors
KW  - physical fitness
KW  - height in history
KW  - malnutrition
Y1  - 2023
U6  - https://doi.org/10.52905/hbph2022.3.36
SN  - 2748-9957
VL  - 2022
IS  - 3
SP  - 1
EP  - 15
PB  - Universitätsverlag Potsdam
CY  - Potsdam
ER  -