Biomedical subjects

Xiao-xue Liu

Publications and source records attributed to Xiao-xue Liu.

4 recordsLinked to original sources

PubMed2004

[Effect of nandrolone phenylpropionate on hepatic albumin mRNA and granulational alpha 1(I) procollagen mRNA in burned rats].

OBJECTIVE: To assess the mechanism for the effect of nandrolone phenypropionate (NP) on hepatic albumin mRNA and granulational alpha 1(I) procollagen mRNA in burned rats with the aim to underpin the clinical application of anabolic steroids. METHODS: Thirty-two Wistar rats with a deep second-degree cutaneous burn of 20% total body surface area were randomly divided into two groups to receive either 5 mg/kg NP (NP group) or normal saline as placebo(control group) every other day. The expression copy quantities of albumin-mRNA in liver tissue and alpha 1 (I) procollagen mRNA in granulation wound were measured by quantitative fluorescent RT-PCR respectively on the post-burned days 4, 7, 14 and 21. RESULTS: The expression levels of albumin-mRNA and alpha 1 (I) procollagen mRNA in NP group were much higher than those in control group. The 7th and 14th days were the periods in which the albumin-mRNA and alpha 1 (I) procollagen mRNA expression had been increasing obviously (P < 0.01). CONCLUSION: Nandrolone phenylpropionate could effectively up-regulate the expression of albumin-mRNA in liver tissue and the alpha 1 (I) procollagen mRNA in granulation wound.

Albumins↗

PubMed2004

[Analysis of curative result for keloid with integrated methods].

OBJECTIVE: To study the curative effects of keloid by operation combined with postoperative beta radiation and silicone gel sheeting. METHODS: From 1996 to 2002, 598 patients with keloid (243 males, 355 females, aging 15-55 years with an average of 28.6 years) were treated by integrated therapy. Their disease courses were from 6 months to 6 years. The keloid area ranged from 1.0 cm x 1.5 cm-8.0 cm x 15 cm. First, keloid was removed by operation, and then the wounds were sutured directly (group suture) or covered with skin graft (group graft). In group suture, the operational sites were managed by beta ray radiotherapy 24-48 hours after operation. The total doses of radiation were 12-15 Gy, 5 times 1 week (group suture A) and 10 times 2 weeks (group suture B). Radiotherapy was not taken until stitches were taken out in group graft, and then the same methods were adopted as group suture B. After radiotherapy, silicone gel sheeting was used in 325 cases for 3-6 months. RESULTS: All patients were followed up for 12-18 months. (1) The overall efficacy was 91.3% in group suture A (n = 196), and 95.8% in group suture B (n = 383), respectively. There was significant difference between the two groups (P < 0.01). (2) Radiotherapy was of no effect in 6 cases of group graft (n = 19). (3) Silicone gel sheeting had effectiveness in 185 cases. Silicone gel sheeting had no obvious effect on the overall efficacy, but it could improve the quality of texture and color of skin. CONCLUSION: By use of integrated methods to treat keloid, if the wound can be sutured directly, skin grafting should not be adopted. The results in group suture B are better than those in group suture A; silicone gel sheeting should be used as possible.

Adolescent↗

PubMed2004

[Effects of nandrolone phenylpropionate on fibroblasts after injury in rats].

OBJECTIVE: To explore the effects of nandrolone phenylpropionate (NP) on fibroblasts after injury in rats. METHODS: Thirty-two Wistar rats with a deep second-degree scald injury and 20% total body surface area were randomly divided into two groups to receive either 5 mg/kg NP (NP group) or normal saline as placebo (control group) every other day. Integrated optical density (IOD) of androgen receptor (AR) and mRNA expression level of alpha1 (I) procollagen were measured by immunohistochemistry and quantitive fluorescent RT-PCR individually on the post-burn days 4, 7, 14 and 21. Fibroblasts were isolated from granulation tissue of a Wistar rat and were cultured in RPMI1640 with the addition of NP at different concentrations. Cell viability of fibroblasts was measured by MTT test, and the proliferative index, by flow cytometry (FCM). RESULTS: (1) Compared with the A value of the concurrent control group, higher A values were seen in NP groups containing different concentrations of NP, and significant difference of proliferative index was observed in NP group, P<0.05. (2) The expression of alpha1 (I) procollagen mRNA in NP groups was much higher than that in control groups. A significant difference between the two groups was noted on the post-burn days 7, 14 and 21, P<0.05, but no difference was seen on day 4. (3) The density of AR on fibroblasts in NP group was higher than that in control group at each time point. And a positive correlation between the expression of alpha1 (I) procollagen mRNA and the quantity of AR on fibroblasats was confirmed (r = 0.836). CONCLUSION: Nandrolone phenylpropionate could promote fibroblast replication, increase the mRNA level of alpha1 (I) procollagen and enhance the density of AR on fibroblasts.

Anabolic Agents↗

PubMed2003

[Effect of nandrolone phenylpropionate on expression of hepatic albumin-mRNA and androgen receptor in burned rats].

OBJECTIVE: To study the mechanism of nandrolone phenylpropionate (NP) on hepatic albumin mRNA and androgen receptor(AR) in burned rats. METHODS: Thirty-two Wistar rats with a deep second-degree cutaneous burn of 20% total body surface area were randomly divided into two groups: NP group (experimental group, 5 mg/kg NP) and normal saline as control group every other day. The expression copy quantity of albumin-mRNA and mean integrated absorbency(mIA) of AR in liver tissue were measured by quantitative fluorescent RT-PCR and immunohistochemistry respectively on the 4th, 7th, 14th and 21st days of post-burned. RESULTS: The expression levels of albumin-mRNA and AR in liver tissue in NP group were much higher than those in control group. The albumin-mRNA and AR expression increased significantly (P < 0.05) after 7 and 14 days, while the expression had no significant difference between NP group and control group on the 4th day. A positive correlation occurred between the expression level of albumin-mRNA and the quantity of AR in liver tissue(r = 0.936, P < 0.05). CONCLUSION: Nandrolone phenylpropionate up-regulated respectively the expression of albumin-mRNA and the density of AR in liver tissue.

Albumins↗