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Table 4 The effects associated with NMDR relationships

From: Non-monotonic dose-response relationships and endocrine disruptors: a qualitative method of assessment

Organs and biological functions involved

Observed effect (with number of associated NMDR relationships)a

Substances involved

In vitrostudies

In vivostudies

Hypothalamus

Dopaminergic transmission (2)

Aromatase activity in preoptic area (1)

E2, octylphenol, diethylhexylphthalate (DEHP)

Pituitary gland

Cell proliferation (1) GABAergic transmission (2) Calcium channel activity (2) Luteinizing hormone (LH) release (1) Prolactin release (12) Protein kinase modification (11)

Follicle stimulating hormone (FSH) plasma level (1) LH plasma level (1)

E2, phytoestrogens, BPA, alkylphenols, DES, organochlorines

Male reproductive system

Testes

Cell proliferation (1) Spermatid DNA breaks (1)

Weight (2) Testosterone hydroxylase activity (4)

E2, BPA, ethinyl estradiol

Epididymis,

 

Weight (2)

E2, BPA

seminal vesicle,

 

Weight (1)

BPA

preputial glands,

 

Weight (1)

BPA

prostate

Cell proliferation (1)

Weight (5)

E2, BPA, DES, dihydrotestosterone (DHT), alkylphenols

Female reproductive system

Ovary

Progesterone secretion (1) Testosterone secretion (1) Estradiol secretion (1)

Transcriptional activity (1)

PCBs, BPA

Uterus

 

Percentage of epithelial cells ERα + (1) Progesterone receptor expression (1)

BPA

Breast

 

Modification of mammary epithelium and terminal end buds (15)

E2, BPA, DES

Brain

L-prostaglandin synthase activity (2) Calcium channel activity (2)

 

E2, pregnenolone, dehydroepiandrosterone (DHEA)

Cardiovascular system

Heart

Myocyte contractility (3)

 

E2, BPA

aortic smooth muscle

Cell proliferation (1) Intracellular pH (1) Modification of protein kinase (2)

 

E2, BPA

Adrenal glands

 

Corticosterone plasma level (1)

PCBs

Liver

 

Nuclear receptors expression (5) Transcriptional factors expression (4)

BPA

Perinatal development

 

Age of puberty (1) Number of newborns (2) Weight of newborns (4) Anogenital distance (3) Sex-ratio (2) Newborn viability (3) Femur length (1) Growth (1)

BPA, DEHP, DES, ethinyl estradiol, alkylphenols, methoxychlor, organochlorines

Behavior

 

Immobility period (1) Spatial memory (2) Temporal memory (2) Nocturnal activity (1) Territorial urine-marking (1) Sexual behavior (5)

E2, 17α-estradiol, BPA, DES

Metabolism

Lipids

Adiponectin release (2) Adiponectin expression (1)

Triglycerides levels (1) Lipogenesis gene expression (10) Cholesterol metabolism gene expression (4)

BPA

Glucose

 

Glucose metabolism gene expression (2) Insulin levels (1)

BPA

Immunity

Mast cells degranulation (4)

Rate of degranulated eosinophils and last cells (1) Macrophagic activity (1) Severity of allergic skin lesions (1)

E2, organochlorines, alkylphenols, DEHP

Cancer

 

Tumor multiplicity (1) Tumor volume (1) Latency period for first tumor (1) Percentage of lung metastases (1)

BPA

  1. aNumbers in parentheses represent the number of NMDR relationships associated with each corresponding effect.