Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2023 Jun;7(2):10.31038/edmj.2023724.
doi: 10.31038/edmj.2023724. Epub 2023 Jul 4.

Reversal of Early Increased Anxiety-Like Behavior in the Zucker Fatty versus Lean Rat: Possible Role of Acquired Hormonal Factors

Affiliations

Reversal of Early Increased Anxiety-Like Behavior in the Zucker Fatty versus Lean Rat: Possible Role of Acquired Hormonal Factors

Mihal Grinberg et al. Endocrinol Diabetes Metab J. 2023 Jun.
No abstract available

PubMed Disclaimer

Figures

Figure 1:
Figure 1:
Center time (sec) in bright light in A) lean or B) fatty Zucker rats after sham- vs. mild TBI. A) Lean: Sham (N=7), TBI (N=6). B) Fatty: Sham (N=5), TBI (N=4).
Figure 2:
Figure 2:
Open field test under dark conditions, 1 month post-injury in Zucker lean and fatty rats. Results are mean ± SEM. Lean: Sham (N=7), TBI (N=6). Fatty: Sham (N=5), TBI (N=4).
Figure 3:
Figure 3:
Center time: significant (strain x time) interaction. Each point is mean ± SEM.
Figure 4:
Figure 4:
Developmental ‘onset’ of reduced anxiety-like behavior in fatty vs. lean Zucker rats. Data are mean ± SEM.
Figure 5:
Figure 5:
Change in body weight in Zucker lean and fatty rats across development and injury (arrowhead). Arrows signify pre-injury, 1-week post and 1-month post-injury timepoints. Each point is mean ± SEM.
Figure 6:
Figure 6:
One week after injury: A) Mean speed and B) distance traveled were both significantly higher in fatty vs. lean Zucker rats; C) total time immobile was significantly higher in lean vs. fatty Zucker rats.
Figure 7:
Figure 7:
A) Zucker fatty (vs. lean) rats traveled significantly greater distance before and 1-week after injury B) Zucker lean (vs. fatty) rats had significantly greater immobility at all three timepoints before and after injury. * P < 0.05
Figure 8:
Figure 8:
SN..8 (vs. scrambled peptide) treatment did not significantly modify time in center in lean or fatty rats evaluated a A) 1 week after sham injury or B) 1 week after mild TBI. Data are mean ± SEM
Figure 9:
Figure 9:
SN..8 (vs. scrambled peptide) treatment did not significantly modify time in center in lean or fatty rats evaluated a A) 1 month after sham injury or B) 1 month after mild TBI. Data are mean ± SEM

References

    1. Howlett JR, Nelson LD, Stein MB (2022) Mental health consequences of traumatic brain injury. Biol Psychiatry 91: 413–422. - PMC - PubMed
    1. Jaacks LM, Vandevijvere S, Pan A, McGowan CJ, Wallace C, et al. (2019) The obesity transition: stages of the global epidemic. The lancet. Diabetes & endocrinology 7: 231–240. - PMC - PubMed
    1. Castanon Nathalie, Lasselin Julie, Capuron Lucile (2014) Neuropsychiatric comorbidity in obesity: role of inflammatory processes. Frontiers in endocrinology 5: 74. - PMC - PubMed
    1. Zimering MB, Patel D, Bahn G (2019) Type 2 Diabetes Predicts Increased Risk of Neurodegenerative Complications in Veterans Suffering Traumatic Brain Injury. J Endocrinol Diabetes 6: 137. - PMC - PubMed
    1. Kurtz TW, Morris RC, Pershadsingh HA (1989) The Zucker fatty rat as a genetic model of obesity and hypertension. Hypertension 3: 896–901. - PubMed

LinkOut - more resources