Abstract:
PURPOSE:The clinical application of autologous tissue-engineered skin analogs is an important strategy to cover large skin defects. Investigating biological dynamics, such as reinnervation after transplantation, is essential to improve the quality of such skin analogs. Previously, we have examined that our skin substitutes are reinnervated by host peripheral nerve fibers as early as 8 weeks after transplantation. Here, we wanted to investigate the presence and possible differences regarding myelinated and unmyelinated host nerve fibers 15 weeks after the transplantation of light and dark human tissue-engineered skin analogs. METHODS:Human epidermal keratinocytes, melanocytes, and dermal fibroblasts were isolated from human light and dark skin biopsies. Keratinocytes and melanocytes were seeded on fibroblast-containing collagen type I hydrogels after expansion in culture. After additional culturing, the tissue-engineered dermo-epidermal skin analogs were transplanted onto full-thickness skin wounds created on the back of immuno-incompetent rats. Skin substitutes were excised and analyzed 15 weeks after transplantation. Histological sections were examined with regard to the ingrowth pattern of myelinated and unmyelinated nerve fibers into the skin analogs using markers, such as Substance P, NF200, and S100-Beta. RESULTS:We found myelinated and unmyelinated peripheral host nerve fibers 15 weeks after transplantation in the dermal part of our human skin substitutes. In particular, we identified large-diameter-myelinated Aβ- and Aδ-fibers, and small-diameter C-fibers. Furthermore, we observed myelinated nerves in close proximity to CD31-positive blood capillaries. In the long run, both types of ingrown host fibers showed an identical pattern in both light and dark skin analogs. CONCLUSION:Our data suggest that myelinated and unmyelinated peripheral nerves reinnervate human skin substitutes in a long-term in vivo transplantation assay. Our tissue-engineered skin analogs attract A- and C-fibers to supply both light and dark skin analogs. Potentially, this process restores skin sensitivity and has, therefore, a significant relevance with regard to future application of autologous pigmented dermo-epidermal skin substitutes onto patients.
journal_name
Pediatr Surg Intjournal_title
Pediatric surgery internationalauthors
Biedermann T,Klar AS,Böttcher-Haberzeth S,Reichmann E,Meuli Mdoi
10.1007/s00383-016-3978-ysubject
Has Abstractpub_date
2016-12-01 00:00:00pages
1183-1191issue
12eissn
0179-0358issn
1437-9813pii
10.1007/s00383-016-3978-yjournal_volume
32pub_type
杂志文章abstract:PURPOSE:Laparoscopic Kasai portoenterostomy was reported to be a safe and feasible procedure in infant with biliary atresia. We aimed to investigate the long-term results after laparoscopic portoenterostomy as such data in the literature are lacking. METHODS:Sixteen infants underwent laparoscopic Kasai portoenterostom...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-012-3172-9
更新日期:2012-11-01 00:00:00
abstract:PURPOSE:We previously showed that meticulous probing and resection of the intrahepatic bile duct stenosis (IHBDS)-causing membrane or septum was effective in preventing hepatolithiasis after choledochal cyst excisions in open surgeries. Then, we introduced this maneuver into laparoscopic choledochal cyst excisions in 2...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-018-4320-7
更新日期:2018-10-01 00:00:00
abstract::High ligation of spermatic vessels (HLSV) and low ligation of spermatic vessels (LLSV) have been described in the surgical treatment of high undescended testis. Testicular capillary blood flow utilizing laser Doppler flowmetry after these maneuvers has not been studied thus far; hence, this study was designed. Thirty ...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-003-1018-1
更新日期:2003-07-01 00:00:00
abstract:PURPOSE:Acute respiratory distress syndrome, with the need for invasive mechanical ventilation (MV) remains a major cause of neonatal mortality and morbidity. Although venovenous extracorporeal lung support (VV-ECLS) has become a standard of care procedure in neonatal patients with acute pulmonary failure there are no ...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-015-3815-8
更新日期:2016-01-01 00:00:00
abstract::When presentation is delayed, intussusceptions may be difficult to reduce using standard enema regimens. Our endeavour to minimize the need for surgery in an environment where failed reductions are common has led to the development of an aggressive, non-operative method of reducing intussusceptions. One hundred and si...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-003-1099-x
更新日期:2004-03-01 00:00:00
abstract:PURPOSE:Sacrococcygeal teratoma (SCT) is the most common congenital neoplasm in neonates. We wished to assess the long-term functional outcome of children undergoing SCT resection. METHODS:Records of neonates diagnosed with SCT from two surgeons' practices, and operated on between 1970 and 2006, were retrospectively r...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-009-2322-1
更新日期:2009-03-01 00:00:00
abstract::Endoscopic holmium:yttrium-aluminum-garnet (Ho:YAG) laser incision is a new method applied in pediatric urology recent years. To evaluate its therapeutic efficacy on treating the pediatric patients with urethral strictures and urethral atresias, a retrospective study was performed from June 2001 to July 2005 in a tota...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-006-1692-x
更新日期:2006-06-01 00:00:00
abstract::The morphogenesis of the external genitalia of human fetuses (16-250 mm crown-rump [CR] length, 6-26 weeks of gestation) obtained after medical termination of pregnancy were studied. Differential development (male/female) started after 50 mm CR length (9 weeks). At that time the external genitalia consisted of a cylin...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/BF01076950
更新日期:1997-07-01 00:00:00
abstract::This study describes a subset of patients with posterior urethral valves (PUV) who presented late in childhood. The objective was to identify factors that lead to back-pressure effects on the upper tracts, which persist in spite of adequate valve ablation in some patients, and seek factors that may preserve the upper ...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s003830050384
更新日期:1998-09-01 00:00:00
abstract::Cystic teratoma of the pancreas is an extremely rare entity: only 11 cases have been described so far in the world literature. We report the 12th case, in a 4-month-old girl. ...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/BF00183759
更新日期:1996-03-01 00:00:00
abstract::To assess the outcome of ureterocystoplasty (UCP) with renal preservation in infants, three infants had a UCP with preservation of the ipsilateral kidney, including one who had a ureteropyeloplasty and one who had a UCP using a previously reimplanted ureter. All three had complication-free improvement in bladder volum...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/BF00183749
更新日期:1996-03-01 00:00:00
abstract:BACKGROUND:The natural history of patients with antenatally diagnosed congenital cystic adenomatoid malformation of the lung (CCAM) is still fully unknown. In symptomatic patients with respiratory distress, an operation is performed during the neonatal period. However, in asymptomatic patients, the optimal timing of th...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-009-2431-x
更新日期:2009-09-01 00:00:00
abstract::Primary omental torsion (POT), is a rare cause of acute abdomen commonly affecting obese male adults, whereas it is extremely rare in children. In this retrospective study, we present our experience regarding the management of five children with POT and discuss the diagnostic and therapeutic implications of this entit...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-007-1961-3
更新日期:2007-09-01 00:00:00
abstract::Pulmonary sequestration is a rare congenital pulmonary malformation. We report a case of a 10-month-old infant with intralobar pulmonary sequestration diagnosed in utero. The lesion had an uncommon blood supply consisting of three large arteries deriving from the thoracic aorta and venous drainage into the inferior ve...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-012-3088-4
更新日期:2012-07-01 00:00:00
abstract::We report the case of a female adolescent who had an ectopic ovary in the inguinal canal without an associated hernia, a unicornuate uterus, and ipsilateral renal agenesis. The incidental discovery of the ectopic ovary and other Mullerian anomalies, as well as the surgical correction that followed, highlights importan...
journal_title:Pediatric surgery international
pub_type: 杂志文章,评审
doi:10.1007/s00383-014-3582-y
更新日期:2014-10-01 00:00:00
abstract::Renal and perinephric abscess in children are uncommon. Three basic pathophysiologic mechanisms are involved, namely, hematogenous spread, ascending infection and contamination by proximity to an infected area. Six pediatric patients diagnosed with renal abscess were treated at our institution from 1990-2000. Five pat...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-002-0888-y
更新日期:2003-04-01 00:00:00
abstract::Migration of particulate matter from plastic tubing and solid plastic implants has been documented in a number of studies, including some with the use of cardiac bypass, haemodialysis, and pump-assisted intravenous infusions. In order to ascertain whether silicone embolisation occurs when children have an Ivac 560 pum...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/BF01194802
更新日期:1997-01-01 00:00:00
abstract::Long chain fatty acids (LCFAs) appear to be powerful stimulants for small bowel adaptation in patients with short bowel syndrome (SBS). However, the dietary lipid content may alter intestinal lipid transport. The aim of this study was to investigate the effects of a high fat diet (HFD) on in vivo lipid absorption and ...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-003-1016-3
更新日期:2003-07-01 00:00:00
abstract::Single-system ureteral ectopia (UE) encompasses a spectrum of malformations involving the bladder trigone, ureter, and kidney. The clinical presentation is variable, and both diagnostic and therapeutic problems are common. Reduced renal function in these patients may result from primary dysplasia, obstruction, vesicou...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s003830000414
更新日期:2000-01-01 00:00:00
abstract::Children and adolescents affected by ulcerative colitis (UC) frequently require colectomy because of refractory or chronic symptoms. The aim of this paper is to present our experience and 10-year follow-up results of 28 patients who underwent endorectal pull-through (ERPT) as surgical treatment for UC, with special re...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-004-1232-5
更新日期:2004-08-01 00:00:00
abstract::Congenital pyloric atresia (CPA) is a very rare condition that was first described by Calder in 1749. Commonly, CPA occurs as an isolated lesion, which has an excellent prognosis, but it can also be seen in association with other malformations, which can have a negative impact on the final outcome. The medical records...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-007-1903-0
更新日期:2007-06-01 00:00:00
abstract::Three cases are reported of pyogenic (non-tuberculous) myositis involving the ilio-psoas and/or iliacus muscles in children presenting to John Hunter Hospital, Newcastle, Australia, in a 12-month period. In one, cultures grew Haemophilus influenzae type B and in the other two Staphylococcus aureus was isolated. Biopsy...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/BF00183769
更新日期:1996-03-01 00:00:00
abstract:PURPOSE:The optimal management of simple hepatic cysts (SHCs) remains controversial. A retrospective review was carried out to evaluate the clinical presentation and surgical consideration of children with SHCs and outcome of management at our institution. METHODS:We performed a retrospective review of all patients di...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-014-3509-7
更新日期:2014-06-01 00:00:00
abstract::Anorectal malformations (ARM) remain a significant birth defect with geographic variation in incidence, individual phenotypes and regional geographic subtypes. Although early studies indicated a low incidence in Black patients, there is a great paucity of knowledge as to the types, frequency and incidence of ARMs enco...
journal_title:Pediatric surgery international
pub_type: 杂志文章,多中心研究
doi:10.1007/s00383-008-2131-y
更新日期:2008-06-01 00:00:00
abstract::Pediatric germ cell tumors comprise 1-3% of all malignant pediatric tumors and are found in variable locations. We present the case of a term 3.7 kg neonate who was found to have a giant liver mass at birth, later determined to be an immature teratoma arising from the hepatoduodenal ligament. This case report and imag...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-017-4123-2
更新日期:2017-09-01 00:00:00
abstract::Hirschsprung disease is the result of aganglionosis of a variable length of the terminal bowel, which arises from the incomplete colonisation of the embryonic gut by vagal neural crest-derived cells (NCC) that migrate caudally from the pharyngeal gut to the rectum. We have previously shown that a very small group of N...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-002-0868-2
更新日期:2002-10-01 00:00:00
abstract:AIM:Although liver abscess (LA) is prevalent worldwide, especially in developing countries, there is a paucity of data regarding the protocol for management of LA in children. The aim of this study was to analyze the outcome of a protocol-based management of pediatric LA from a single institution. MATERIALS AND METHOD...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-016-4009-8
更新日期:2017-02-01 00:00:00
abstract::Postoperative abdominal evisceration may lead to high morbidity and mortality. The purpose of the present study was to determine possible risk factors, morbidity and mortality associated with abdominal evisceration in children. A total of 3,591 children underwent abdominal exploration in our clinic between 1983 and 20...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-006-1722-8
更新日期:2006-08-01 00:00:00
abstract::Laparoscopy enables surgeons to approach the surgical conditions from a new perspective. Laparoscopic surgery has revolutionized the treatment of choledochal cysts (CDC). Yet, this new technique requires objective evaluations. We have examined the controversies about the CDC dissection, distal common bile duct ligatio...
journal_title:Pediatric surgery international
pub_type: 杂志文章,评审
doi:10.1007/s00383-013-3266-z
更新日期:2013-04-01 00:00:00
abstract:PURPOSE:With the widespread use of the obstetrical ultrasound, identification of a fetal suprarenal mass has become more common. Most of these masses prove to be congenital neuroblastomas (CNB), but the diagnosis is often confused with other benign lesions and the postnatal management remains to be controversial. METH...
journal_title:Pediatric surgery international
pub_type: 杂志文章
doi:10.1007/s00383-009-2531-7
更新日期:2010-03-01 00:00:00