1.Aspirin inhibits the growth of hypertrophic scar in rabbit ears via regulating Wnt/β-catenin signal pathway.
Zhihu LIN ; Xiao HAN ; Mengyao ZHANG ; Jiaqin XU ; Haihong LI ; Jianda ZHOU ; Huiqing XIE
Journal of Central South University(Medical Sciences) 2022;47(6):698-706
OBJECTIVES:
Steroidal anti-inflammatory drugs have certain side effects in the treatment of hypertrophic scar, and the scar recurrence is easy after withdrawal of steroid anti-inflammatory drugs. Finding reliable alternative drugs is an effective means to improve this defect. Aspirin, a traditional non-steroidal anti-inflammatory drug, is safe for topical use and has anti-inflammatory effects similar to those of steroidal anti-inflammatory drugs, which may have similar effects on the treatment of hypertrophic scar. This study aims to investigate the inhibitory effect of aspirin on the proliferation of hypertrophic scar in rabbit ears and the underlying mechanism.
METHODS:
The rabbit ear hypertrophic scar models were prepared. The rabbits were randomly divided into a normal skin group (group A), a blank control group (group B), a 0.9% NaCl group (group C), a 0.2% aspirin group (group D), a 0.5% aspirin group (group E), a 2% aspirin group (group F), and a triamcinolone acetonide group (group G). Macroscopic observation of hyperplasia was performed 8 weeks after local injection of the scar, followed by collecting the scar tissue samples for HE staining, Masson staining, and immunohistochemistry, respectively to assess the proliferation of fibroblasts and collagen fibers, and calculate the hypertrophic index, microvessel density, and immunohistochemical score.
RESULTS:
All rabbit ear hypertrophic scar models were successfully constructed. In groups B and C, the hypertrophic scar edge was irregular, with reddish protruding epidermis, significant contracture and hard touch. In group D, E, and F, with the increase of aspirin administration concentration, the scar became thinner and gradually flat, the proliferation of fibrocytes and collagen fibers was weakened, and the hypertrophic index was gradually decreased (P<0.05). Immunohistochemistry showed that the expression of β-catenin was decreased in the group D, E and F in turn, and the immunohistochemical score was gradually decreased (P<0.05). There was no significant difference in hypertrophic index, microvessel density, and immunohistochemical score (all P>0.05).
CONCLUSIONS
Local injection of aspirin can reduce the generation of hypertrophic scar in a dose-dependent manner within a certain concentration range; aspirin inhibits the growth of hypertrophic scar in rabbit ears by inhibiting Wnt/β-catenin signal pathway; 2% aspirin and 40 mg/mL triamcinolone acetonide have similar curative efficacy on hypertrophic scar.
Animals
;
Anti-Inflammatory Agents/therapeutic use*
;
Aspirin/therapeutic use*
;
Cicatrix, Hypertrophic/pathology*
;
Collagen
;
Rabbits
;
Signal Transduction
;
Triamcinolone Acetonide/therapeutic use*
;
beta Catenin/metabolism*
2.Effects of composite laser technique combined with multipoint microinjection of triamcinolone acetonide in the treatment of hypertrophic scars in burn children.
Ying LEI ; Jun TAN ; Hua Wei OUYANG ; Xiao Jia LIU ; Yi Ling YU
Chinese Journal of Burns 2022;38(9):810-815
Objective: To explore the effects of pulsed dye laser (PDL) and ultra-pulsed fractional carbon dioxide laser (UFCL) combined with multipoint microinjection of triamcinolone acetonide in the treatment of red hypertrophic scar at early stage in burn children. Methods: A retrospective cohort before-after control study in the same patients was conducted. From February 2019 to December 2020, a total of 67 burn children who met the inclusion criteria (32 males and 35 females, aged 1 to 12 years) with red hyperplastic scar at early stage, were treated in Hunan Provincial People's Hospital (1st Affiliated Hospital of Hunan Normal University). All the children were treated with composite laser technique (PDL and UFCL) combined with triamcinolone acetonide (hereinafter referred to as combined treatment). After 2 months, they received the second combined treatment. Before the first combined treatment and 6 months after the last combined treatment, the scar of children was evaluated with the patient and observer scar assessment scale (POSAS) by physicians and family members. Six months after the last combined treatment, the satisfaction of the patients' family members with the efficacy was recorded and the overall satisfaction rate was calculated. Adverse reactions were recorded throughout the treatment process. Data were statistically analyzed with paired sample t test. Results: Six months after the last combined treatment, the POSAS scores of children on the thickness, blood vessels distribution, color, surface roughness, texture, scope, and overall evaluation of scar evaluated by the physicians, and the POSAS scores of children on the color, degree of pain, degree of itching, hardness, thickness, shape and size, and overall evaluation of scar evaluated by the family members were significantly lower than those before the first combined treatment (with t values of 17.32, 16.73, 15.00, 14.91, 19.62, 28.74, 29.83, 17.43, 20.52, 29.01, 28.82, 24.91, 20.30, and 42.13, respectively, P<0.01). Six months after the last combined treatment, 62 (93%), 3 (4%), and 2 (3%) children's family members were very satisfied, satisfied, and relatively satisfied with the treatment effect, respectively, and the overall satisfaction rate was 97% (65/67). Six months after the last combined treatment, no scar thickening or infection occurred in all the wounds of children. Conclusions: Composite laser technique combined with multipoint microinjection of triamcinolone acetonide in the treatment of red hypertrophic scar at early stage in burn children can improve the appearance and texture of scar, reduce scar pain and pruritus, with high satisfaction of children's family members to the treatment effect and less adverse reactions.
Burns/therapy*
;
Child
;
Cicatrix, Hypertrophic/pathology*
;
Female
;
Humans
;
Lasers, Gas
;
Male
;
Microinjections
;
Pain
;
Pruritus
;
Retrospective Studies
;
Treatment Outcome
;
Triamcinolone Acetonide/therapeutic use*
3.Clinical effects of pulsed dye laser dynamically combined with triamcinolone acetonide in the treatment of keloids.
Zhen Nan LIU ; Yue Min ZHOU ; Ruo Xuan LIU ; Ya Ling LI ; Qing LI ; Ting ZHANG ; Shu Man ZHANG
Chinese Journal of Burns 2022;38(9):822-829
Objective: To explore the clinical effects of pulsed dye laser (PDL) dynamically combined with triamcinolone acetonide (TAC) in the treatment of keloids. Methods: A retrospectively observational study was conducted. From April 2015 to October 2020, 34 keloid patients (46 keloids) who met the inclusion criteria were admitted to Huaihe Hospital of Henan University. The patients were divided into TAC group and dynamic treatment group according to their treatment methods. There were 18 patients (26 keloids) in TAC group, including 8 males and 10 females, aged (30±12) years, who were treated with TAC injection alone. There were 16 patients (20 keloids) in dynamic treatment group, including 6 males and 10 females, aged (26±11) years, who were treated with TAC injection, PDL, or PDL combined with TAC injection according to the Vancouver scar scale (VSS) score before each treatment. Before the first treatment (hereinafter referred to as before treatment) and 12 months after the first treatment (hereinafter referred to as after treatment), the keloids were assessed by VSS, patient and observer scar assessment scale (POSAS), and the effect of keloids on the quality of life of patients was evaluated with dermatology life quality index (DLQI) scale. Twelve months after treatment, the curative effect of keloid was evaluated according to the VSS score and the effective rate was calculated. The first effective time and the cumulative times of TAC injection at the first effective time, the number of follow-up and the occurrence of adverse reactions of keloids within 12 months after treatment were recorded, and the incidence of adverse reactions was calculated. Data were statistically analyzed with paired sample t test, independent sample t test, Wilcoxon rank-sum test, Mann-Whitney U test, chi-square test, and Fisher's exact probability test. Results: The total VSS scores of patients' keloids in TAC group and dynamic treatment group 12 months after treatment were significantly lower than those before treatment (with t values of 7.53 and 8.09, respectively, P<0.01), and the total scores of pigmentation and vascularity in VSS and POSAS, the total POSAS score, and the DLQI scale score were significantly lower than those before treatment (with Z values of -3.71, -4.04, -4.21, -4.11, -3.76, -3.73, -3.92, and -3.93, respectively, P<0.01). The total scores of pigmentation and vascularity in VSS and POSAS of patients' keloids in dynamic treatment group 12 months after treatment were significantly lower than those in TAC group (with Z values of -2.03 and -2.12, respectively, P<0.05). Twelve months after treatment, the effective rate of patients' keloids in dynamic treatment group was significantly higher than that in TAC group (χ2=3.88, P<0.05). The first effective time of patients' keloids in dynamic treatment group was 5.5 (2.0, 6.0) months, which was significantly shorter than 6.0 (2.3, 10.3) months in TAC group (χ2=4.02, P<0.05). The cumulative times of TAC injection at the first effective time of patients' keloids in dynamic treatment group was 3.2±1.7, which was significantly less than 4.2±1.8 in TAC group (t=2.09, P<0.05). The number of follow-up of patients' keloids within 12 months after treatment in dynamic treatment group was significantly more than that in TAC group (t=-2.94, P<0.01), and the total incidence of adverse reactions was lower than that in TAC group but without statistically significant difference (P>0.05). Conclusions: Compared with TAC injection alone, PDL dynamically combined with TAC in the treatment of keloid can shorten the effective time, reduce the number of TAC injection, and improve the patient's compliance and clinical efficacy.
Female
;
Humans
;
Keloid/pathology*
;
Lasers, Dye/therapeutic use*
;
Male
;
Quality of Life
;
Retrospective Studies
;
Treatment Outcome
;
Triamcinolone Acetonide/therapeutic use*
4.Efficacy for combined injection of salvizanolic acid B with triamcinolone acetonide on the treatment of the soft palate with oral submucous fibrosis.
Journal of Central South University(Medical Sciences) 2019;44(7):801-804
To evaluate therapeutic effect of combined injection of salvizanolic acid B with triamcinolone acetonide on the treatment of the soft palate with oral submucous fibrosis.
Methods: Salvizanolic acid B combined with triamcinolone acetonide was consecutively applied once a week for 30 weeks for 33 patients with middle and later periods of oral submucous fibrosis. The response rate of color change in the soft palate and the increase of capillary vessels (determined by degree I-IV visual analog scale) were evaluated at the 12th, 24th, and 36th months after 30 weeks treatment.
Results: Thirty-three patients were fulfilled the study without obvious adverse reactions and they were followed up for 24 months, while 31 patients were followed up for 36 months. The color change in the soft palatal mucus and the increase of capillary vessels at the 36th month follow-up after treatment were significantly better than those at the 12th month (P=0.004).
Conclusion: Combined injection of salvizanolic acid B with triamcinolone acetonide in the treatment of the soft palate with oral submucous fibrosis is effective.
Glucocorticoids
;
Humans
;
Oral Submucous Fibrosis
;
drug therapy
;
Palate, Soft
;
Treatment Outcome
;
Triamcinolone Acetonide
;
therapeutic use
5.Effect of Posterior Subtenon Triamcinolone Acetonide Injection on Diabetic Macular Edema Refractory to Intravitreal Bevacizumab Injection.
Min Woo KIM ; Haein MOON ; Sung Jae YANG ; Soo Geun JOE
Korean Journal of Ophthalmology 2016;30(1):25-31
PURPOSE: To evaluate the effects of posterior subtenon triamcinolone acetonide injection on refractory diabetic macular edema (DME) after intravitreal bevacizumab (IVB) injection failure. METHODS: Patients with DME and central subfield thickness (CST) >300 microm who did not respond to IVB injections were retrospectively included. Specifically, we enrolled patients who were diagnosed with refractory DME and who experienced an increase in CST after 1 to 2 IVB injections or no decrease after > or =3 consecutive IVB injections. One clinician injected 20 mg of triamcinolone acetonide into the posterior subtenon space. All patients received ophthalmic examinations at baseline and at 2, 4, and 6 months post-baseline. Examinations included Snellen visual acuity, intraocular pressure, and spectral-domain optical coherence tomography. RESULTS: Forty eyes of 34 patients were included. The average baseline CST was 476 microm. The average CST decreased to 368 microm at 2 months, 374 microm at 4 months, and 427 microm at 6 months (p < 0.001 for all results, Wilcoxon signed-rank test). The average intraocular pressure increased from 15.50 to 16.92 mmHg at 2 months but decreased to 16.30 mmHg at 4 months and 15.65 mmHg at 6 months. Logarithm of the minimum angle of resolution visual acuity improved from 0.56 to 0.50 at 2 months (p = 0.023), 0.50 at 4 months (p = 0.083), and 0.48 at 6 months (p = 0.133, Wilcoxon signed-rank test). No complications were detected. CONCLUSIONS: Posterior subtenon triamcinolone acetonide is an effective and safe treatment for reducing CST in DME refractory to IVB.
Aged
;
Angiogenesis Inhibitors/*therapeutic use
;
Bevacizumab/*therapeutic use
;
Diabetic Retinopathy/diagnostic imaging/*drug therapy/physiopathology
;
Female
;
Glucocorticoids/*administration & dosage
;
Humans
;
Injections, Intraocular
;
Intraocular Pressure/physiology
;
Intravitreal Injections
;
Macular Edema/diagnostic imaging/*drug therapy/physiopathology
;
Male
;
Middle Aged
;
Retrospective Studies
;
Tenon Capsule/*drug effects
;
Tomography, Optical Coherence
;
Treatment Failure
;
Triamcinolone Acetonide/*administration & dosage
;
Vascular Endothelial Growth Factor A/antagonists & inhibitors
;
Visual Acuity/physiology
7.Efficacy of Intravitreal Anti-vascular Endothelial Growth Factor or Steroid Injection in Diabetic Macular Edema According to Fluid Turbidity in Optical Coherence Tomography.
Kyungmin LEE ; Heeyoung CHUNG ; Youngsuk PARK ; Joonhong SOHN
Korean Journal of Ophthalmology 2014;28(4):298-305
PURPOSE: To determine if short term effects of intravitreal anti-vascular endothelial growth factor or steroid injection are correlated with fluid turbidity, as detected by spectral domain optical coherence tomography (SD-OCT) in diabetic macular edema (DME) patients. METHODS: A total of 583 medical records were reviewed and 104 cases were enrolled. Sixty eyes received a single intravitreal bevacizumab injection (IVB) on the first attack of DME and 44 eyes received triamcinolone acetonide treatment (IVTA). Intraretinal fluid turbidity in DME patients was estimated with initialintravitreal SD-OCT and analyzed with color histograms from a Photoshop program. Central macular thickness and visual acuity using a logarithm from the minimum angle of resolution chart, were assessed at the initial period and 2 months after injections. RESULTS: Visual acuity and central macular thickness improved after injections in both groups. In the IVB group, visual acuity and central macular thickness changed less as the intraretinal fluid became more turbid. In the IVTA group, visual acuity underwent less change while central macular thickness had a greater reduction (r = -0.675, p = 0.001) as the intraretinal fluid was more turbid. CONCLUSIONS: IVB and IVTA injections were effective in reducing central macular thickness and improving visual acuity in DME patients. Further, fluid turbidity, which was detected by SD-OCT may be one of the indexes that highlight the influence of the steroid-dependent pathogenetic mechanism.
Aged
;
Angiogenesis Inhibitors/*therapeutic use
;
Bevacizumab/*therapeutic use
;
Diabetic Retinopathy/*drug therapy/physiopathology
;
Female
;
Glucocorticoids/*therapeutic use
;
Humans
;
Intravitreal Injections
;
Macular Edema/*drug therapy/physiopathology
;
Male
;
Middle Aged
;
Nephelometry and Turbidimetry
;
Retina/pathology
;
*Subretinal Fluid
;
Tomography, Optical Coherence
;
Treatment Outcome
;
Triamcinolone Acetonide/*therapeutic use
;
Vascular Endothelial Growth Factor A/antagonists & inhibitors
;
Visual Acuity/physiology
8.Intravitreal bevacizumab with or without triamcinolone acetonide for diabetic macular edema: a meta-analysis of randomized controlled trials.
Xiangdong LIU ; Xiaodong ZHOU ; Zhi WANG ; Tao LI ; Bo JIANG
Chinese Medical Journal 2014;127(19):3471-3476
BACKGROUNDIntravitreal anti-vascular endothelial growth factor (anti-VEGF) drugs and corticosteroids are being widely used to treat diabetic macular edema (DME). The purpose of this study was to evaluate further the efficacy and safety of intravitreal bevacizumab (IVB) alone in comparison with intravitreal bevacizumab combined with triamcinolone acetonide (IVB/IVT) in the treatment of DME.
METHODSPertinent publications were identified through CNKI, PubMed, Medline, EMBASE, and the Cochrane Controlled Trials Register up to November 30, 2013. Two investigators independently assessed the quality of the trials, and changes in central macular thickness (CMT) and best-corrected visual acuity (BCVA) were extracted at 6 weeks and 3, 6, 12, and 24 months after the initial treatment. A meta-analysis was carried out to compare the results between the groups receiving IVB and IVB/IVT using the software RevMan 5.0.
RESULTSA total of six randomized controlled trials (RCTs) were identified and included. The meta-analysis revealed that a significant reduction of the CMT was observed at 3 months after the initial treatment in the IVB/IVT group compared to the IVB group (P = 0.001). Also, changes in CMT at 6 weeks and 6, 12, and 24 months did not vary significantly between the IVB and IVB/IVT groups (P = 0.53, 0.76, 0.34, and 0.09, respectively). Similarly, changes in BCVA at 6 weeks and 3, 6, 12, and 24 months also did not vary significantly between the two groups (P = 0.66, 0.98, 0.81, 0.07, and 0.80, respectively). The results were robust to sensitivity analyses. However, the rate of intraocular pressure (IOP) rise after intravitreal injections varied significantly between the IVB and IVB/IVT groups (P < 0.01). A publication bias was not detected by funnel plots, the Egger method, or the Begg method.
CONCLUSIONS RESULTSof this meta-analysis showed that the treatments with IVB alone and combined IVB/IVT were similarly effective in improving the visual acuity, and, to some degree; combined IVB/IVT appeared to offer a marginal advantage over IVB in decreasing CMT in patients with DME. However, the addition of IVT resulted in intraocular pressure rise in some treated patients.
Antibodies, Monoclonal, Humanized ; administration & dosage ; therapeutic use ; Bevacizumab ; Diabetic Retinopathy ; drug therapy ; Humans ; Intravitreal Injections ; Macular Edema ; drug therapy ; Randomized Controlled Trials as Topic ; Triamcinolone Acetonide ; administration & dosage ; therapeutic use
9.Cutaneous pseudolymphoma occurring after traumatic implantation of a foreign red pigment.
Wei Liang KOH ; Yong Kwang TAY ; Mark Jean Aan KOH ; Chee Seng SIM
Singapore medical journal 2013;54(5):e100-1
Cutaneous pseudolymphoma is an uncommon, benign lymphoproliferative disorder of the skin. Although this condition is most commonly idiopathic, its occurrence has been associated with cosmetic tattoos. We report a unique case of cutaneous pseudolymphoma that occured after accidental, traumatic inoculation of a red pigment in a healthy 33-year-old woman.
Adult
;
Betamethasone
;
analogs & derivatives
;
therapeutic use
;
Biopsy
;
Coloring Agents
;
adverse effects
;
Female
;
Forehead
;
pathology
;
Humans
;
Lacerations
;
Lymphoproliferative Disorders
;
diagnosis
;
etiology
;
Pseudolymphoma
;
chemically induced
;
diagnosis
;
Skin
;
pathology
;
Skin Diseases
;
chemically induced
;
diagnosis
;
Triamcinolone Acetonide
;
therapeutic use
10.A Three-year Follow-up of Intravitreal Triamcinolone Acetonide Injection and Macular Laser Photocoagulation for Diffuse Diabetic Macular Edema.
Hee Yoon CHO ; Se Woong KANG ; Yun Taek KIM ; Song Ee CHUNG ; Seung Woo LEE
Korean Journal of Ophthalmology 2012;26(5):362-368
PURPOSE: To report the three-year outcomes of macular laser photocoagulation following intravitreal injection of triamcinolone acetonide (IVTA) for diffuse diabetic macular edema (DME). METHODS: A prospective, randomized controlled study was completed. Eighty-six eyes of 74 patients with diffuse DME were randomized into two groups. Eyes assigned to the combination group (n = 48) were subjected to macular laser photocoagulation three weeks after IVTA. Eyes in the IVTA group (n = 38) underwent IVTA alone. Central macular thickness was measured by optical coherence tomography, and the number of additional treatments and mean time to recurrence were assessed. RESULTS: Thirty-seven eyes in the combination group and 26 eyes in the IVTA group completed the three-year follow-up. Recurrence of DME after initial treatment was not observed for nine of the 37 (24.3%) eyes in the combination group or for one of the 26 (3.9$) eyes in the IVTA group (p = 0.028). DME was absent for 19.9 months after treatment in the combination group compared to 10.3 months in the IVTA group (p = 0.027). The mean number of additional treatments was 0.92 in the combination group and 1.88 in the IVTA group (p = 0.001). CONCLUSIONS: Results in the subset of subjects who completed the three-year follow-up demonstrated that laser photocoagulation following IVTA is more effective than IVTA monotherapy for diffuse DME. Combination therapy required fewer additional treatments and resulted in a lower recurrence rate than IVTA monotherapy.
Combined Modality Therapy
;
Diabetic Retinopathy/*therapy
;
Female
;
Fluorescein Angiography
;
Follow-Up Studies
;
Glucocorticoids/administration & dosage/*therapeutic use
;
Humans
;
Intravitreal Injections
;
Laser Coagulation/*methods
;
Macular Edema/*therapy
;
Male
;
Middle Aged
;
Prospective Studies
;
Tomography, Optical Coherence
;
Treatment Outcome
;
Triamcinolone Acetonide/administration & dosage/*therapeutic use
;
Visual Acuity

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