Abstract:
BACKGROUND:In bioartificial liver preparation, serum-contained medium is ordinarily replaced by serum-free medium and hepatocytes are generally cultured at high density. This study was to undertaken to evaluated the dynamic changes in morphology, viability and functions of porcine hepatocytes in serum-free medium at high density. METHODS:Hepatocytes were isolated from suckling pigs by modified two-step in situ collagenase perfusion method and cultured in serum-free medium at high density. Morphology, viability, protein and glucose syntheses, G-6-Pase activity, diazepam transformation of hepatocytes and release of LDH in supernatant during 7 days of culture were evaluated. These measurements were also determined on both groups of hepatocytes cultured at low-density in serum-free medium and serum-contained medium, which served as control groups. RESULTS:Morphology and protein synthesis of hepatocytes cultured in serum-free medium at high density were stable over the course of 7 days. High viability (>90%) was obtained though it declined with time. Diazepam transformation of cells was higher on days 2 and 3. Glucose synthesis of cells declined from day 3 to day 7. G-6-Pase activity of the hepatocytes declined apparently after 1 day of culture and it was maintained at a low level from day 1 to day 7. Release of LDH in supernatant was higher on days 1, 2 and 3. There were no significant differences in viability and functions of hepatocytes except for G-6-Pase activity at low-density culture between the serum-free medium group and the serum-contained medium group. The functions of hepatocytes cultured at high density were lower than at low-density culture. CONCLUSIONS:The results showed that the morphology, viability, protein synthesis and diazepam transformation of hepatocytes cultured in serum-free medium at high density were maintained during 7 days of culture. The serum-free medium provided indices of cell viability and functions that were comparable to serum-contained medium. The functions of hepatocyte cultured at high density (1 x 10(7) cells/ml) were lower than at low density (5 x 10(5) cells/ml).
journal_name
Dig Surgjournal_title
Digestive surgeryauthors
Chen Z,Ding Y,Zhang Hdoi
10.1159/000064211subject
Has Abstractpub_date
2002-01-01 00:00:00pages
184-91issue
3eissn
0253-4886issn
1421-9883pii
dsu19184journal_volume
19pub_type
杂志文章abstract:BACKGROUND:Perianal warts are common, and may be extensive. Electrocoagulation is a recognised management option. METHOD:A 20-year-old male underwent electrocautery of extensive perianal warts. He presented 3 months postoperatively with constipation and inability to defecate. Examination revealed severe perianal stric...
journal_title:Digestive surgery
pub_type: 杂志文章
doi:10.1159/000018856
更新日期:2000-01-01 00:00:00
abstract::Dysgerminomas of the ovary rarely metastasize to abdominal viscera and when they do, the involvement is a part of a disseminated disease. A 30-year-old woman developed isolated duodenopancreatic dysgerminoma 14 years after salpingo-oophorectomy. The clinical picture was complicated by the presence of tuberculous lesio...
journal_title:Digestive surgery
pub_type: 杂志文章
doi:10.1159/000050198
更新日期:2001-01-01 00:00:00
abstract::In this review, the function of the sphincter of Oddi (SO) is detailed in terms of normal motility, neural and hormonal control of SO function, coordination between gallbladder and SO motility, and correlation of motility of the SO and the duodenum. In addition, SO function tests, such as the morphine Prostigmin test ...
journal_title:Digestive surgery
pub_type: 杂志文章,评审
doi:10.1159/000286464
更新日期:2010-01-01 00:00:00
abstract:BACKGROUND:The optimal treatment of common bile duct (CBD) stones is controversial, and depends on local expertise, the patient's medical condition and the time of diagnosis. Current practice entails a wide variation in the duration of leaving T tubes in place, anywhere from 7 to 30 days, and in the time to postoperati...
journal_title:Digestive surgery
pub_type: 杂志文章
doi:10.1159/000018612
更新日期:1998-01-01 00:00:00
abstract:BACKGROUND/AIMS:It has recently been reported that rebamipide (OPC-12759) inhibits inflammatory cytokines and activation of neutrophils. The aim of the present study was to investigate the effects of preoperative administration of rebamipide on parameters of systemic inflammatory response syndrome (SIRS) and serum leve...
journal_title:Digestive surgery
pub_type: 临床试验,杂志文章
doi:10.1159/000073645
更新日期:2003-01-01 00:00:00
abstract::The intestinal barrier function is considered to play an important role in protecting the penetration of luminal antigens, associated with the development of secondary infection and sepsis and the initiation of the multiple organ dysfunction syndrome. The intestinal mucosal barrier against luminal macromolecules and m...
journal_title:Digestive surgery
pub_type: 杂志文章
doi:10.1159/000018651
更新日期:1998-01-01 00:00:00
abstract:BACKGROUND:The optimal management approach to pancreatic serous cystic neoplasms (SCNs) is still evolving. METHODS:Consecutive patients with SCN managed at the Liverpool Pancreas Cancer Centre between 2000 and 2013 were retrospectively reviewed. RESULTS:There were 64 patients consisting of 39 women (60.9%) and 25 men...
journal_title:Digestive surgery
pub_type: 杂志文章
doi:10.1159/000442094
更新日期:2016-01-01 00:00:00
abstract:BACKGROUND:The prevalence and significance of joint symptoms appearing in patients with ulcerative colitis (UC) following a colectomy are unclear. AIM:We investigated the relationship between joint symptoms during steroid tapering following an ileal pouch-anal anastomosis (IPAA) and the cumulative risk for developing ...
journal_title:Digestive surgery
pub_type: 杂志文章
doi:10.1159/000093495
更新日期:2006-01-01 00:00:00
abstract:AIMS:To compare the diagnostic value of endoscopic ultrasound (EUS) and endoscopic retrograde cholangiopancreatography (ERCP) in the differentiation of malignant from benign masses in the pancreatic head. METHODS:Within 14 months 95 prospective patients with masses in the pancreatic head were assigned for preoperative...
journal_title:Digestive surgery
pub_type: 杂志文章
doi:10.1159/000051942
更新日期:2000-01-01 00:00:00
abstract::Behçet's disease (BD) is a multisystem disorder characterized by vasculitis. The aim of this report is to present a patient with BD and diverticular disease of the colon and discuss the possible association between BD and diverticulosis. To our knowledge, diverticular disease of the colon has not been previously repor...
journal_title:Digestive surgery
pub_type: 杂志文章
doi:10.1159/000050185
更新日期:2001-01-01 00:00:00
abstract:INTRODUCTION:Percutaneous radiofrequency ablation (PcRFA) provides alternative means of treating patients with unresectable colorectal liver metastases. We previously reported our initial experience in 30 patients treated with PcRFA. We present the final long-term results in these 30 patients. METHODS:The final outcom...
journal_title:Digestive surgery
pub_type: 杂志文章
doi:10.1159/000107717
更新日期:2007-01-01 00:00:00
abstract:BACKGROUND:Hilar resection in combination with extended liver resections has resulted in a higher rate of R0 resections and increased survival in patients with hilar cholangiocarcinoma (HCCA). This aggressive surgical approach is, however, associated with high rates of operative morbidity and mortality, largely due to ...
journal_title:Digestive surgery
pub_type: 杂志文章
doi:10.1159/000323825
更新日期:2011-01-01 00:00:00
abstract::The symptoms of necrolytic migratory erythema, diabetes, stomatitis, weight loss and diarrhoea represent the glucagonoma syndrome which has been recognized since the early 1970s. Because of its rarity (1 case/20-200 million population) late diagnosis is frequent which leads to a poor prognosis. The case described, ori...
journal_title:Digestive surgery
pub_type: 杂志文章
doi:10.1159/000018696
更新日期:1999-01-01 00:00:00
abstract:BACKGROUND:Despite decennia of experience, ileal pouch anal anastomosis for ulcerative colitis is still associated with high complication rates. The development of automatic vessel sealers has resulted in the revival of a promising surgical alternative to the conventional procedure: close rectal dissection. By preservi...
journal_title:Digestive surgery
pub_type: 杂志文章
doi:10.1159/000331255
更新日期:2011-01-01 00:00:00
abstract:BACKGROUND AND AIM:Most patients with hepatic metastases from colorectal carcinoma are unsuitable for resection. Radiofrequency ablation (RFA) has been applied to such lesions at laparotomy. This study aimed to evaluate the less invasive approach of percutaneous RFA. METHOD:Patients with unresectable liver metastases ...
journal_title:Digestive surgery
pub_type: 杂志文章
doi:10.1159/000080886
更新日期:2004-01-01 00:00:00
abstract:BACKGROUND:Mexican health system structure allows us to study the differences in bile duct injury (BDI) management. The study aimed to assess the differences in patients with complex BDI in 2 different public sector institutions using a new proposed standard terminology. METHODS:Retrospective review (2008-2019) in 2 p...
journal_title:Digestive surgery
pub_type: 杂志文章
doi:10.1159/000509706
更新日期:2020-01-01 00:00:00
abstract:BACKGROUND:In the treatment of gastroesophageal reflux disease (GERD), anterior fundoplications are emphasized for their lower risk of complications compared to the posterior approach. AIM:The aim of this study was to evaluate the long-term results of laparoscopic anterior 180 degrees fundoplication in consideration o...
journal_title:Digestive surgery
pub_type: 杂志文章
doi:10.1159/000235959
更新日期:2009-01-01 00:00:00
abstract::Despite the fact that laparoscopic hernia repair was already described in 1979, its value has still not been well defined. The standard treatment for uncomplicated primary hernia repair in Europe is an open anterior approach (i.e. Shouldice), and 'tension-free' mesh plug repair in the USA. At present, posterior mesh i...
journal_title:Digestive surgery
pub_type: 杂志文章,评审
doi:10.1159/000018611
更新日期:1998-01-01 00:00:00
abstract:BACKGROUND:Laparoscopic sigmoidectomy for diverticulitis has initially been confined to the elective setting. However, open acute sigmoidectomy for perforated diverticulitis is associated with high morbidity rates that might be reduced after laparoscopic surgery. The aim of this systematic review was to assess the feas...
journal_title:Digestive surgery
pub_type: 杂志文章,评审
doi:10.1159/000441150
更新日期:2016-01-01 00:00:00
abstract:BACKGROUND/AIMS:The management of patients with silent or asymptomatic gallstones remains controversial. The objective of this study is to determine the complications of laparoscopic cholecystectomy performed to treat patients under 50 years of age with asymptomatic gallstones. METHOD:207 patients, 13-49 years of age ...
journal_title:Digestive surgery
pub_type: 杂志文章
doi:10.1159/000018876
更新日期:2000-01-01 00:00:00
abstract::The introduction and widespread application of minimally invasive surgery has been one of the most important innovations that radically changed the practice of surgery during the last few decades. The application to pancreatic surgery of minimally invasive approach has only recently emerged: both laparoscopic distal p...
journal_title:Digestive surgery
pub_type: 杂志文章,评审
doi:10.1159/000445012
更新日期:2016-01-01 00:00:00
abstract:BACKGROUND/AIMS:Primary distal bile duct adenocarcinomas (DBDAs) are unusual neoplasms, necessitating pancreaticoduodenectomy for cure. The aims of this study were to evaluate the prognostic importance of lymphatic and perineural invasion, long-term outcome of patients after resection, and differences in outcome with h...
journal_title:Digestive surgery
pub_type: 杂志文章
doi:10.1159/000018798
更新日期:2000-01-01 00:00:00
abstract:INTRODUCTION:The extent of optimal gastric resection for proximal gastric cancer (PGC) continues to remain controversial, and a final consensus is yet to be met. The current study aimed to compare the perioperative outcomes, postoperative complications, and overall survival (OS) of proximal gastrectomy (PG) versus tota...
journal_title:Digestive surgery
pub_type: 杂志文章,评审
doi:10.1159/000506104
更新日期:2021-01-01 00:00:00
abstract::A 26-year-old male was admitted to our hospital with a complaint of mild dysphagia. Preoperative examinations revealed a cystic lesion at the lower esophagus, thought to be a bronchogenic cyst. The patient underwent successful thoracoscopic tumor extirpation, assisted by endoscopy, without undergoing major thoracotomy...
journal_title:Digestive surgery
pub_type: 杂志文章,评审
doi:10.1159/000094751
更新日期:2006-01-01 00:00:00
abstract:BACKGROUND:Gas in the mesenteric or portal veins (PVG) is an uncommon entity. It was first described only in patients with mesenteric ischemia and bowel gangrene. Later, several reports described other causes for PVG in which conservative treatment was successful. In the past, the diagnosis was made by vague signs in a...
journal_title:Digestive surgery
pub_type: 杂志文章
doi:10.1159/000069388
更新日期:2003-01-01 00:00:00
abstract:BACKGROUND/AIMS:To evaluate the short-term surgical outcomes of laparoscopic intersphincteric resection (ISR) for lower rectal cancer, and to compare them with a case-control series of open ISR. METHODS:Between July 2002 and March 2011, 29 patients with lower rectal cancer underwent laparoscopic ISR, and 22 of 29 pati...
journal_title:Digestive surgery
pub_type: 杂志文章
doi:10.1159/000332007
更新日期:2011-01-01 00:00:00
abstract::One of the possible long-term complications following an ileoanal pouch procedure is the development of malignancy in the mucosa of the rectal stump. Only 10 such cases have been reported so far. We report the case of a 23-year-old male who had ulcerative colitis with high-grade dysplasia and underwent an ileoanal pou...
journal_title:Digestive surgery
pub_type: 杂志文章,评审
doi:10.1159/000068855
更新日期:2003-01-01 00:00:00
abstract:BACKGROUND:Despite the increasing number of reports on the favorable outcomes of laparoscopic surgery for gallbladder cancer (GBC), there is no consensus regarding this surgical procedure. OBJECTIVE:The study aimed to develop a consensus statement on the application of laparoscopic surgery for GBC based on expert opin...
journal_title:Digestive surgery
pub_type: 共识发展会议,杂志文章
doi:10.1159/000486207
更新日期:2019-01-01 00:00:00
abstract:BACKGROUND/AIM:Laparoscopy-assisted surgery has proved useful in the treatment of early gastric cancer, but its use in advanced cancer has rarely been studied. To investigate the efficacy and advantages of laparoscopy-assisted distal gastrectomy (LADG) with D2 dissection of lymph nodes versus conventional open D2 dista...
journal_title:Digestive surgery
pub_type: 杂志文章
doi:10.1159/000281818
更新日期:2010-01-01 00:00:00
abstract:BACKGROUND:Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal tumors of the gastrointestinal tract. The tumor size and mitotic count, typical risk category factors, are difficult to determine preoperatively. This study aimed to evaluate the usefulness of preoperative 18F-fluoro-2-deoxyglucose posit...
journal_title:Digestive surgery
pub_type: 杂志文章
doi:10.1159/000357149
更新日期:2014-01-01 00:00:00