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Bone tissue morphology of rat offspring lactationally exposed to polychlorinated biphenyl 169 and 155
ID
Brankovič, Jana
(
Avtor
),
ID
Jan, Janja
(
Avtor
),
ID
Fazarinc, Gregor
(
Avtor
),
ID
Vrecl, Milka
(
Avtor
)
PDF - Predstavitvena datoteka,
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(1,95 MB)
MD5: EA64226E8F8F55697C58223A29BD40FC
URL - Izvorni URL, za dostop obiščite
https://www.nature.com/articles/s41598-020-76057-7
Galerija slik
Izvleček
Polychlorinated biphenyls (PCBs) are ubiquitous, persistent, organic pollutants also considered endocrine-disrupting chemicals. Our study examined the effects of lactational exposure to nondioxin-like PCB-155 and/or dioxin-like PCB-169 on longitudinal femur growth at the distal epiphyseal growth plate (EGP) in young rats at three different ages [postnatal days (PNDs) 9, 22, and 42]. After delivery, lactating rats were divided into four groups (PCB-169, PCB-155, PCB-155 + 169, and control) and administered PCBs intraperitoneally. The femurs of offspring were used to estimate growth rate (µm/day), and histomorphometric analysis on the distal femur included the thickness of the EGP and zones of proliferation and hypertrophy with calcification. Stereometry was used to determine trabecular bone volume density. In the PCB-169 and PCB-155 + 169 groups, PCB-169 affected longitudinal bone growth in the early postnatal period by interfering with chondrocytes in the EGP zone of proliferation and, to a lesser extent, the zone of hypertrophy. Morphometric alterations in EGP structure diminished until puberty. A slow growth rate persisted in the PCB-169 group until PND 42, while in the PCB-155 group, a fast growth rate between PNDs 9 to 22 was significantly reduced between PNDs 22 to 42. Sterometric assessment showed decreased trabecular bone volume in the PCB-155 + 169 group compared with that in the control on PND 9 and increased in the PCB-169 group compared with that in the PCB-155 group on PND 42. To summarize, studied PCB congeners exerted congener- and age-dependent effects on femur growth rate and its histomorphometric characteristics.
Jezik:
Angleški jezik
Ključne besede:
environmental pollutants
,
polychlorinated biphenyls
,
bone morphology
,
biochemistry
,
rats
,
bone
,
histology
Vrsta gradiva:
Članek v reviji
Tipologija:
1.01 - Izvirni znanstveni članek
Organizacija:
VF - Veterinarska fakulteta
MF - Medicinska fakulteta
Status publikacije:
Objavljeno
Različica publikacije:
Objavljena publikacija
Leto izida:
2020
Št. strani:
9 str.
Številčenje:
Vol. 10, art. 19016
PID:
20.500.12556/RUL-122069
UDK:
611
ISSN pri članku:
2045-2322
DOI:
10.1038/s41598-020-76057-7
COBISS.SI-ID:
35769091
Datum objave v RUL:
19.11.2020
Število ogledov:
1008
Število prenosov:
113
Metapodatki:
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Objavi na:
Gradivo je del revije
Naslov:
Scientific reports
Skrajšan naslov:
Sci. rep.
Založnik:
Nature Publishing Group
ISSN:
2045-2322
COBISS.SI-ID:
18727432
Licence
Licenca:
CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:
http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:
To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
Projekti
Financer:
ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:
P4-0053
Naslov:
Endokrini, imunski in encimski odzivi pri zdravih in bolnih živalih
Financer:
ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:
P3-0374
Naslov:
Preiskovanje orofacialnega področja za izboljšanje oralnega zdravja
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