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Objective:To investigate the clinical effect of repairing postoperative nasal skin cancer defect with subcutaneous pedicle flap based on partition and blood supply.Methods:From March 2018 to September 2020, 39 patients with skin cancer (basal cell carcinoma, Bowen′s disease, squamous cell carcinoma and malignant melanoma in situ) were repaired with kites subcutaneous pedicle flap after extensive resection.Results:Thirty-nine patients were treated with parafasal kite flaps, including 44 cases. The donor sites of the flap were nasal tip in 4 cases, bilateral alar in 7 cases, bilateral nasolabial sulcus in 19 cases, bilateral parasinal in 12 cases and interglabellar in 2 cases. There were no serious complications such as necrosis, hematoma or infection. During the follow-up period of 6 to 24 months, 2 patients complained of occasional tingling in the surgical area, 1 complained of occasional pruritus, and 1 patient had local recurrence of squamous cell carcinoma and underwent surgery again. The scar was evaluated 6 months after surgery, and the scores of Vancouver scar scale and visual analogue scale were 2.42±1.04 and 7.83±1.21, respectively. The skin color of the operation area was similar to that of the surrounding skin without obvious local strain deformation.Conclusions:The subcutaneous pedicle flap designed by considering the nasal division and blood supply has a high survival rate, fewer complications and small local appearance deformation, which is worthy of popularization and application.
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Objective:To determine the clinical effect of sequential therapy by local injection of triamcinolone acetonide and lattice CO 2laser for hypertrophic scar. Methods:A total of 80 hypertrophic scar patients, including 45 male and 35 female, in our clinic were randomly divided into test ( n=40) and control ( n=40) groups from March 2019 to May 2020. Patients aged from 18-42 years with average age 28.1. Patients in test groups were treated with triamcinolone acetonide and lattice CO 2laser sequentially. After final treatments, third-party blind evaluation, Vancouver scar scale, visual analog scale and dermatology life quality index were performed. Results:Test group acquired more satisfied result in third-party blind evaluation (82.5% vs. 52.5%, χ2=8.216, P<0.05). Vancouver scar scale, visual analog scale and dermatology life quality index were not significantly different before treatment for both groups while test group acquired better improvement after treatment ( P<0.05). Conclusions:Sequential therapy by local injection of triamcinolone acetonide and lattice CO 2laser is effective for hypertrophic scar and worths wide application in the clinic.
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Objective:To systematically evaluate the influence of botulinum toxin type A (BTXA) injections in the facial plastic surgery incision.Methods:A systematic literature search for studies which were published on PubMed, EMbase, Cochrane Central, CNKI and VIP, was performed from January 1998 to Octomber 2019. " Facial wound" , " Keloid" , " Scar" , " Cicatrix hypertrophy" , " Botulinum toxin" , " Boutulin" , " Botox" were set as the key words. We included trails related to the influence of botulinum toxin type A (BTXA) injections in the facial plastic surgery incision. The data were extracted and Rev Man 5.3 was used for meta-analysis.Results:Participants included seven randomized controlled trial of 450 patients. The Vancouver scar scale score of BTXA group was higher than those in the control group ( Z=23.92, P<0.01). The visual analogue scale score of BTXA group was higher than that of the control group ( Z=8.60, P<0.01). The scar width of BTXA group was less than that in the control group ( Z=10.84, P<0.01). Patients＇ satisfactory rate of BTXA group was higher than that of the control group ( Z=2.83, P<0.01). Conclusions:The injection treatment of BTXA for facial hyperplastic scar has certain curative effect, without obvious side effects, but the authenticity and stability of therapeutic effect have to be verified by more high quality research.
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Singular periosseous osteochondroma-like hyperplasia is often misdiagnosed, because of its atypical skin lesion. The clinical reports in China are rare. On May 29, 2018, a patient with osteochondroma-like hyperplasia of singular bone on the right foot was diagnosed at the Department of Dermatology, First Affiliated Hospital of Zhengzhou University. Tissue biopsy was performed for histopathological confirmation. The incision healed well after operation, and there was no recurrence observed in the follow-up period of 5 months.
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Objective To study inhibition of litsea cubeba oil on biofilm initial formation stage of Candida albicans ,in order to provide new sight for prevention and treatment of refractory infections arising from Candida albicans biofilm .Methods Observe the inhibition effect of different concentrations litsea cubeba oil on yeast budding by serum germ tube experiments .Results 2 -5μL/mL litsea cubeba oil could thoroughly inhibit budding growth of Candida albicans ,but haven′t antiseptic effect ,the inhibition rate of 0 .25 μL/mL litsea cubeba oil on Candida albicans germ was 85 .0% .Conclusion 2-5μL/mL litsea cubeba oil could completely inhibit the budding growth of Candida albicans ,but have no antiseptic effect .0 .25 μL/mL litsea cubeba oil could hardly inhibit the growth of buds .
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Objective To study inhibition of litsea cubeba oil on biofilm initial formation stage of Candida albicans ,in order to provide new sight for prevention and treatment of refractory infections arising from Candida albicans biofilm .Methods Observe the inhibition effect of different concentrations litsea cubeba oil on yeast budding by serum germ tube experiments .Results 2 -5μL/mL litsea cubeba oil could thoroughly inhibit budding growth of Candida albicans ,but haven′t antiseptic effect ,the inhibition rate of 0 .25 μL/mL litsea cubeba oil on Candida albicans germ was 85 .0% .Conclusion 2-5μL/mL litsea cubeba oil could completely inhibit the budding growth of Candida albicans ,but have no antiseptic effect .0 .25 μL/mL litsea cubeba oil could hardly inhibit the growth of buds .
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Objective To investigate auricle index difference in Henan residents,and to provide an additional reference for otoplasty.Methods Subjects were made up 266 healthy young of Henan residents.Their height,weight,total head height,maximum head length,maximum head breadth,vertex to tragion height,physiognomic ear breadth,morphological ear breadth,physiognomic ear length and morphological ear length were measured and calculated.All the data were analyzed by SPSS 15.0 software.Results We obtained the means,standard deviation of each items,and data were treated statistically.Height (162.9±4.1) cm,weight (55.3±6.5) kg,total head height (18.6±1.0) cm,maximum head length (17.0±0.7) cm,maximum head breadth (14.1±0.8) cm,vertex to tragion height (11.9±0.7) cm,physiognomic ear length (6.2±0.4) cm,morphological ear breadth (4.9±0.6) cm,physiognomic ear breadth (3.3±0.3) cm and morphological ear length (2.9±0.3) cm were determined.The differences among the indices mentioned above were of statistical significance (P＜0.05);the indices of female subjects of different height were significantly different (P＜0.05);the indices of female subjects of different weight were also statistically different (P＜0.05).The auricle index subjects of different height and weight were of no stistical difference.(P＞0.05).Conclusions Subjects of different height and weight have different total head height;hence,the indices are related to body height and weight.Subjects of different height have different vertex to tragion height,length-height index of the head and breadth-height index of the head.This study has certain reference values on analyzing the characteristics of the human and auricle cosmetology of henan young females.
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Objective To investigate the clinical efficacy of conjoint fascial sheath (CFS) of the levator and superior rectus attached to the conjunctival fornix suspension surgery and the modified frontails muscle suspension in the treatment of severe blepharoptosis.Methods There were 15 eyes of 11 patients in the group with CFS suspension and 12 eyes of 10 patients in the other group with frontails muscle suspension.Follow-up was conducted for 1 week to 6 months.The surgical results were compared with statistical analysis.Results Among the patients 2 cases of palpebral fissure was closed poorly,1 cases of upper eyelid had poor shape,4 cases of upper lid was lag,2 cases of recurrence in group with modified frontails muscle suspension,and compared with 1 case of less straightening phenomenon in the group with CFS suspension.All the others,palpebral fissures were completely closed,the appearance of double eyelid was good,with no exposure keratitis.In terms of postoperative curative effect in 6 months observation,group with CFS suspension had less complications and was of advantages in the symmetry of upper eyelid fissure.The effect of correction post operation and upper eyelid back amount in the group with CFS suspension were better than those with the frontails muscle suspension in 6 months.There was significantly statistical difference.Conclusions The surgery with CFS suspension is of advantages of aesthetic appearance,high security,natural look,high satisfaction from patients,less complications and more in line with the physiology,which is worthy of clinical reference.
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Objective To investigate therapeutic effect of bromhidrosis by botulinum toxin A injections and situation of bromhidrosis recurrence.Methods Clinical data of bromhidrosis patients were analyzed in our hospital from January 2013 to June 2014.A total of 89 cases were involved in this study and randomized into two groups:observation group (42 cases) were treated by botulinum toxin A,and patients with the control group (47 cases) were treated by small skin excision.The total effective rate,incidence of complications and recurrence rate in both groups were compared.Results After treatment for 3 months,the total effective rate of both group had no statistical difference (P＞ 0.05).After different treatment,the incidence of complications in observation group of patients was 2.38％ (1/42),and that in the control group was 14.89％ (7/47);complication rates of control group patients was significantly higher than that of the observation group,with statistical significance (x2 =4.245,P＜0.05).After 9 months follow-up,31 cases in the observation group of patients showed bromidrosis recurrence,with recurrence rate of 73.81％;2 patients in the control group showed bromidrosis recurrence,with recurrence rate of 4.26％.Log-Rank test showed that recurrence rate in observation group was significantly higher than that of control group (x2 =43.21,P ＜0.05).Conclusions Botulinum toxin A injection is an uninvasive method for the treatment of bromhidrosis with fewer complications and good effect,but the postoperative recurrence rate is higher and it needs injections for many times.
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Objective To explore the new way of administration and clinical effect of botulinum toxin A in the treatment of focal hyperhidrosis.Methods The clinical efficacy was observed in 132 sites of 28 patients with focal hyperhidrosis,and the degree and range of focal hyperhidrosis were determined by the minor iodine-starch test.50 U of botulinum toxin A was injected in unilateral axillary,palms and soles with BellaVita instrument and 30 U for forehead.Each patient was followed-up in 1 week,2 weeks and every month after injection for 8 months.According to the results of the minor iodine-starch test the objective effect and evaluation score were obtained,and the comprehensive effect evaluation score was calculated with the objective effect evaluation score and the subjective effect evaluation score in each follow-up.Results The comprehensive effect evaluation score before injection of botulinum toxin A was 1.34±3.94,and that after injection was 23.21±9.44 for 1 week,92.41±11.95 for 1 month,98.21±5.60 for 2 months,95.98±5.94 for 3 months,and 86.61±10.17 for 4 months,respectively.Compared with that before injection,the difference was statistically significant (P ＜0.05).The effect decreased slowly after 4 months of injection,and the efficacy was maintained for 8 months (4.46±6.98);compared with that before injection,the difference of the clinical efficacy was not statistically significant (P ＞0.05).Based on the comprehensive effect evaluation scores,the differ ence of the clinical efficacy was not statistically significant between 1 week and 6 months after injection (P＞0.05).Conclusions The clinical effect of botulinum toxin A injected by BellaVita is prompt and effective for focal hyperhidrosis.
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Objective To investigate facial-cervical index difference in undergraduates of different height or weight in Han nationality to provide an additional reference for plastic surgery of facialcervical region.Methods Subjects consisted of 200 college undergraduates of Han nationality,aged 20 to 24 years,with average 22.9 ± 1.7,of whom 100 were male and 100 were female.Their height,weight,bizygomatic breadth,facial height,cervical height,neck circumference,neck breadth,shoulder width,cervical-mandibular angle,thorax-cervical angle,shoulder-cervical angle,pulvinar-cervical angle and back-cervical angle were measured and calculated.Results The differences among the indices mentioned above were of statistical significance (P＜0.05);the indices of female subjects of different height were significantly different (P＜0.05);the differences in indices of male subjects of different weight were of statistical significance (P＜0.05);the indices of female subjects of different weight were also statistically different (P＜0.05).The facial-cervical indices in both male and female subjects of different height or weight were of no stistical difference (P＞0.05).Conclusions Male subjects of different height or weight have different cervical height,cervical-mandibular angle,neck height and facial height indices are different;hence,the indices are related to body height;female subjects of different body height have different neck height.Subjects of different weight have different neck circumference,neck breadth,should breadth,shoulder-cervical angle and pulvinar-cervical angle.
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Objective To investigate the methods and effects of anterolateral thigh flap reconstruction of the complicated hip decubitus.Methods The study contained 24 cases of grade Ⅳ hip decubitus reconstructed with anterograde pedicled anterolateral thigh flaps through May 2010 to July 2014.There were 13 males and 11 females,aged 26-64 years (mean 54 years).Defects ranged in size from 12 cm×6 cm to 24 cm× 12 cm.Dimensions of flaps harvested were 14 cm ×8 cm to 30 cm× 14 cm.Eighteen cases of the donor sites were directly sutured and six covered with full thickness skin.Results Twenty-two flaps survived completely,and wound was healed by the first intension.Two flaps developed partial distal necrosis,and wound was healed after dressing treatment.Period of follow-up was 6 months to 2 years.Shape,texture and color of the flaps were well matched with the recipient area.Conclusion The anterolateral thigh flap transplantation has advantages of similarity to the recipient area,large enough flap area and sound expected effective and is a good method for repair of hip decubitus.
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<p><b>OBJECTIVE</b>To study the possibility of removal melanin granules from autogenic acellular dermal matrix of giant nevus tissue by H2O2 bleaching technique.</p><p><b>METHODS</b>A total of 32 skin specimens (0.5 cm x 0.5 cm) from giant nevus tissue and 1 piece (0.5 cm x 0.5 cm) of normal skin were obtained from the surgical removal. One giant nevus tissue was chosen as control. The others and the normal skin tissue were treated with solution of 0.25% Dispase II for digestion for 24 hours under normal temperature to remove epidermis. Then each piece was immerged into solution of 0.5% Triton X-100 for digestion for 48 hours in normal temperature. One giant nevus tissue and the normal skin tissue were chosen as control. The others were immerged into solution of different concentrations of H2O2, treated under different temperature and lasting for different period. Lastly, all specimens were treated with HE staining, immunohistochemical staining, light microscopy and so on.</p><p><b>RESULTS</b>After giant nevus tissues were treated with solution of 0.25% Dispase II and immerged into solution of 0.5% Triton X-100 in normal temperature, nevus cells and all other cellular components of pigmented nevus tissues can be effectively removed, there were the cavities left by removal of cells without any residual cell debris, but still remaining part of pigment. Then each specimen were immerged into solution of different concentrations of H2O2, under different temperature and lasting for different period which can remove residual melanin granules. In solution of 3% H2O2 for 36 h under 37 degrees C, can remove all the melanin particles, the content of collagen type I in the obtained specimen was not changed. Collagen fibers were uniform in thickness, regular in arrangement with no obvious degeneration.</p><p><b>CONCLUSIONS</b>With solution of 0.25% Dispase II and solution of 0.5% Triton X-100 in normal temperature, all cells in nevus tissue can be removed effectively. Further treatment with 3% H2O2 at 37 degrees C for 36 h can remove all the melanin particles, while collagen type I has no obvious change. The preparation of acellular dermal matrix of the giant nevus may possibly be applied as autologous tissue implant to repair tissue defects.</p>
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Humans , Acellular Dermis , Endopeptidases , Pharmacology , Epidermis , Hydrogen Peroxide , Pharmacology , Melanins , Nevus , Pathology , Nevus, Pigmented , Pathology , Octoxynol , Pharmacology , Skin Lightening Preparations , Pharmacology , Skin Neoplasms , Pathology , Skin Pigmentation , Skin Transplantation , Surface-Active Agents , PharmacologyABSTRACT
<p><b>BACKGROUND</b>Melanoma has the highest mortality among all superficial malignant tumors. The poor prognosis is due to its high metastasis rate and the lack of therapeutic targets. As a molecular switch that controls tumor metastasis, Ras homology C (RhoC) has been correlated with tumor progression, especially tumor invasion and metastasis. However, little research has been done about the effects of RNA interference (RNAi) targeting RhoC on the invasion and metastasis of melanoma. In this study, we constructed an RNAi lentivirus vector targeting the RhoC gene of melanoma cells and identified its silencing effects on the RhoC gene.</p><p><b>METHODS</b>Based on the RhoC gene encoding information, three pGPU6/GFP/Neo-short hairpin (shRNA) plasmids were constructed. After detecting their silencing effects on the RhoC gene of A375 cells, the most effective pGPU6/GFP/Neo-shRNA plasmid was packed with lentivirus to construct the recombinant pLenti6.3-EGFP-453 targeting RhoC. The lentivirus vector was used to infect A375 cells, and then the expression of RhoC mRNA and protein were determined with real-time PCR and Western blotting.</p><p><b>RESULTS</b>The plasmids pGPU6/GFP/Neo-shRNA 336, pGPU6/GFP/Neo-shRNA 453, and pGPU6/GFP/Neo-shRNA 680 were constructed. After they were transfected into A375 cells, the expressions of RhoC mRNA and protein were 1.47 ± 0.26, 1.13 ± 0.16, 1.39 ± 0.11 and 70.98 ± 9.21, 50.67 ± 6.06, 65.77 ± 4.06, respectively. pGPU6/GFP/Neo-shRNA 453 was the most effective sequence, and was used to successfully construct the pLenti6.3-EGFP-453 lentiviral vector targeting RhoC. pLenti6.3-EGFP-453 was used to infect A375 cells. The expression of RhoC mRNA and protein were 1.05 ± 0.05 and 62.04 ± 15.86 in the lentivirus group, 4.21 ± 0.24 and 220.86 ± 24.07 in the negative lentivirus control group, and 4.63 ± 0.32 and 257.39 ± 12.30 in the normal control group respectively with the difference between the lentivirus group and the control groups being statistically significant (P < 0.05).</p><p><b>CONCLUSION</b>The successfully constructed pLenti6.3-EGFP-453 vector targeting the RhoC can effectively infect human melanoma A375 cells in vitro, and significantly inhibit the RhoC mRNA and protein expression.</p>
Subject(s)
Humans , Cell Line, Tumor , Genetic Vectors , Genetics , Lentivirus , Genetics , Melanoma , Genetics , Therapeutics , RNA Interference , Physiology , rho GTP-Binding Proteins , Genetics , Metabolism , rhoC GTP-Binding ProteinABSTRACT
Objective To investigate the protein and mRNA expression of NF-κB and zinc finger protein A20 in the keloid and normal skin and to explore its underlying molecular biological mechanism.Methods The protein and mRNA expression of NF-κB p65 and zinc finger protein A20 in keloid and normal skin was detected by immunohistochemistry and real time quantitative reverse transcription-polymerase chain reaction (RT-PCR).Results The protein and mRNA expression of NF-κB p65 in keloid tissues was higher than those in normal skin tissues (P＜0.05).The protein and mRNA expression of zinc finger protein A20 in keloid tissues was lower than those in normal skin tissues (P＜0.05).Conclusions NF-κB signal pathways and zinc finger protein A20 could play a role in keloid pathogenesis.
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Objective To study what affect the incidence and recurrence of keloids. Methods A total of 476 cases were treated with surgery plus adjunctive radiation therapy, intraleisional injection of triamcinolone acetonaide acetate, or surgery plus postoperative topical medicine. The family history and other clinical data were analyzed, including patients' age, sex, the duration of keloids, initiating factors, location, size, treatment method, and recurrence of the keloids. Results Keloids occurred in both male and female with the rate of 1. 83 ∶ 1. 00, with a predominance in woman aged from 22 to 45 years old. Trauma and pierce were the most significant initiating factors. The recurrence was affected by patients family history, treatment methods and the location of keloids, and less affected by keloids size, patients' age and sex. Conclusions Both surgery following adjunctive radiation therapy and intraleisional Kenalog injection are useful methods, which are prior to surgery plus postoperative topical medicine. The keloids incidence has a preponderance in some patients with family history. Therefore,genetic research is important to identify the pathogenetic factors in the keloids.
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Objective To investigate the relevant data and aesthetic standards of hip and thigh profile in young females from the central plain area of China, aiming to provide a credible reference for the clinical application. Methods Measurements were made in 551 young healthy females aged 16 to 21 years, including waist circumference, hip circumference, maximum thigh circumference, thigh length and the ratio between thigh length and height. Based on these data, the features of the hip and thigh profile were analyzed. Results Waist circumference, hip circumference, maximum thigh circumference, thigh length and the ratio between thigh length and height were ( 70. 74 ± 5.86 ), ( 87.16 ± 4. 19 ), ( 51.87 ± 3.27 ),(42.35 ±2.38) cm and (26. 1 ± 1.23) %, respectively. The hip and maximum thigh circumference showed significant difference between different height and weight groups. The thigh length and the ratio between thigh length and height were positively correlated with height. Conclusion The parameters of hip and thigh profile in young females from the central plain area are of significant values in providing quantitative references for the plastic surgery and evaluation of the operation,especially in liposuction.
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Objective To study the aesthetic standard and parameters of abdominal profile in young females, in order to provide anatomic data for abdomino plasty and umbilicus reconstruction or transposition. Methods Measurements were conducted in 281 young health females, including height, weight, abdominal length, abdominal width and umbilicus location. All data were analyzed. Results The abdominal length, abdominal width, length from appendix ensiformis to omphalion, length from appendix ensiformis to middle point between appendix ensiformis and symphysion were (37. 93 ± 2. 15), (36. 98 ± 2. 71), (21. 10±1.80), and (18. 96±1. 08) cm, respectively. Abdominal length was positively correlated with height. Abdominal width, and the ratio between abdominal length and width were positively correlated with weight. The location of umbilicus was lower 2. 1 cm than middle point between appendix ensiformis and symphysion. Conclusion The abdominal profile is significant for clinical reference during abdomino plasty and umbilicus reconstruction or transposition.
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Objective To study the mierovessel density (MVD) marked by CD105 and expression of survivin gene in pathologic scar, and to investigate the function of oncogenes in tumorigenic process and abnormal scarring. Methods In situ hybridization and immunohistoehemical methods (SP technique) were used to detect survivin mRNA, CD105-MVD in 40 pathologic scar cases, 20 normotrophic scar cases, and 20 normal skin cases, respectively. The relationship between the expression of survivin mRNA and CD105-MVD in 40 pathologic scar cases were analyzed. Results Compared with normotrophic scar and normal skin cases, the expression of survivin mRNA, CD105-MVD were significant difference in pathologic scar cases (P<0.05). In pathologic scar tissue, the expression of survivin had significant correlation with MVD marked by CD105 (P<0.05). Conclusion survivin is up-regulated in pathologic scar, which may contribute to the vascular formation.
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Objective To investigate the aesthetic standard of leg length in young unmarried females.and to provide an additional reference for leg-plasty.Methods According to the data of the 531 young healthy women aged 17 to 20 years,the mean,standard of height,weight,hip circumference,lowaer limb length,leg length,leg girth,lower leg length-girth index,and leg girth index were calculated.Correlations between these parameters were analyzed by SPSS 15.0 software.Results Heightwas(163.22±4.03)cm,weight was(53.82±6.12)kg,hip circumference was (91.51±4.56)cm,whole leg was(75.95±2.97)cm,leg was(37.97±1.83)cm,length of leg maximal girth to tibial tuberosity(14.13±0.74)cm,length of leg medium girth to tibial tuberosity (18.99±0.92)cm,leg maximal girth(34.91±1.82)cm,leg minimal girth(20.30±1.06)cm,leg length to height ratio was 23.26±0.90,lower leg to whole leg ratio 50.01±1.95,leg maximal girth to hip circumference was 38.18±1.66,lower leg length-girth index was 92.12±5.86,leg girth index was 58.21±2.84.and the distance from leg maximal girth point to tibial tuberosity to leg length ratio was 37.26±1.78.Distance from leg maximal girth point to tibial tuberosity to leg length ratio and leg girth index had significant correlation with height,and hip circumference,but had no significant correlation with weight.Lower leg length-girth index had significant correlation with height,weight,and hip circumference.Conclusion These data have some reference value on analyzing the characteristics of human female leg cosmetology.