scholarly journals The Effect of 17β-Estradiol Administration on Cutaneous Wound Healing in 24-Week Ovariectomized Female Mice

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Kanae Mukai ◽  
Yukari Nakajima ◽  
Tamae Urai ◽  
Emi Komatsu ◽  
Kana Takata ◽  
...  

Estrogen replacement promotes cutaneous wound healing in 8–10-week young ovariectomized female mice. However, research using aged ovariectomized female mice has not been reported, to the best of our knowledge. Therefore, we investigated the effect of 17β-estradiol on cutaneous wound healing using 24-week middle-aged ovariectomized female mice. Twenty-week-old female mice were divided into three groups: medication with 17β-estradiol after ovariectomy (OVX + 17β-estradiol), ovariectomy (OVX), and sham (SHAM). After 4 weeks, the mice received two full-thickness wounds. Then, the OVX + 17β-estradiol group was administered 17β-estradiol at 0.01 g/day until healing. The ratio of wound area in the OVX + 17β-estradiol group was significantly decreased compared with that in the OVX group. The numbers of neutrophils and macrophages in the OVX + 17β-estradiol group were significantly smaller than those in the OVX group. In addition, the ratio of myofibroblasts in the OVX + 17β-estradiol group was significantly higher than that in the OVX group. These data suggested that exogenous continuous 17β-estradiol administration promotes cutaneous wound healing in 24-week OVX female mice by reducing wound area, shortening inflammatory response, and promoting wound contraction. However, it is unclear whether the effect of exogenous estrogen on wound healing outweighs the delay of wound healing due to advanced age.

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Kanae Mukai ◽  
Yuriko Miyasaka ◽  
Kana Takata ◽  
Tamae Urai ◽  
Yukari Nakajima ◽  
...  

The aim of this experiment was to investigate the effect of 17β-estradiol on cutaneous wound healing in 12-week ovariectomized (OVX) female mice. Eight-week-old female mice were divided into three groups: administration of 17β-estradiol after OVX (OVX + 17β-estradiol), OVX, and sham (SHAM). Four weeks after surgery, the mice received two full-thickness cutaneous wounds. 17β-Estradiol at 0.01 g/day was administered on the backs of mice in the OVX + 17β-estradiol group every day. Plasma 17β-estradiol level in the OVX + 17β-estradiol group was thus significantly higher than in the SHAM and OVX groups, but there was no significant difference between SHAM and OVX groups. The ratio of wound area was not significantly different among the three groups. However, the period required to reach a ratio of wound area of 0.15 in the OVX + 17β-estradiol group was significantly shorter than in the SHAM and OVX groups. These results indicate that cutaneous wound healing in young OVX mice was promoted by the administration of 17β-estradiol compared with that in SHAM and OVX mice without such administration, but there was no difference between the latter two groups that did not differ in 17β-estradiol level.


2014 ◽  
Vol 13 (5) ◽  
pp. 636-644 ◽  
Author(s):  
Kanae Mukai ◽  
Yukari Nakajima ◽  
Tamae Urai ◽  
Emi Komatsu ◽  
Nasruddin ◽  
...  

Diabetes ◽  
2018 ◽  
Vol 67 (Supplement 1) ◽  
pp. 643-P ◽  
Author(s):  
YANFEI HAN ◽  
LINDONG LI ◽  
YANJUN LIU ◽  
YOU WANG ◽  
CHUNHUA YAN ◽  
...  

PLoS ONE ◽  
2014 ◽  
Vol 9 (12) ◽  
pp. e115564 ◽  
Author(s):  
Kanae Mukai ◽  
Emi Komatsu ◽  
Yukari Nakajima ◽  
Tamae Urai ◽  
Nasruddin ◽  
...  

PLoS ONE ◽  
2014 ◽  
Vol 9 (11) ◽  
pp. e112297 ◽  
Author(s):  
Marcio Fronza ◽  
Guilherme F. Caetano ◽  
Marcel N. Leite ◽  
Claudia S. Bitencourt ◽  
Francisco W. G. Paula-Silva ◽  
...  

Author(s):  
Martha Orendu Attah ◽  
Tonye Watson Jacks ◽  
Attah Jacob ◽  
Otong Eduitem ◽  
Barnabas John

Background: In the present research study, the rate of cutaneous wound healing and contraction rate in healthy rabbits using Aloe vera pulp was studied.Methods: Ten healthy rabbits were used for the study. They were divided into two groups consisting of five rabbits each. Cutaneous wounds were made on the lumbar region of each rabbit using a template which ensured that the wounds were of the same size in all the rabbits. 5ml of Aloe vera gel was applied to the wounds of the animals in the test group, while nothing was applied to the wound area of the animals in the control group. The wound area in each group was measured for a period of 21 days, using a venire caliper and tracing paper which was used to trace the wound area. Tissue samples were removed from the wound area in both experimental and control groups and subjected to routine histological analysis, also, morphometric analysis was performed.Results: The rate of wound contraction and mean centripetal contraction was calculated in both groups and graphically represented using Microsoft Excel. The results showed that animals who were treated with Aloe vera gel had a greater wound contraction rate, as well as rapid wound closure. The micrographs showed a thicker epithelial layer, with thinner collagen fibers in the dermis of experimental animals compared to the control group. There was also an abundant capillary bed at the dermal-epidermal junction in the experimental group, compared to the control group.Conclusion:  Aloe vera may increase the rate of wound healing by accelerating epithelial migration, and may also play a role in neo-vascularization of the newly healed area.Keywords: Aloe vera, Cutaneous Wounds, Rabbits, Wound Contraction, Wound Healing


2010 ◽  
Vol 196 ◽  
pp. S152
Author(s):  
S. Letasiova ◽  
P. Hayden ◽  
G. Stolper ◽  
A. Armento ◽  
C. Cooney ◽  
...  

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