No abstract available.
*Algorithms ; Automation ; Clinical Laboratory Information Systems/*standards ; Humans ; Immunoassay/*methods ; Indicator Dilution Techniques ; alpha-Fetoproteins/*analysis

BACKGROUND/AIMS: α-Fetoprotein (AFP) is normally <10 ng/mL in adults without malignancy or liver regeneration. However, hereditary or nonhereditary persistence of AFP in healthy adults may be encountered in clinical practice. This study describes four cases of persistent AFP elevation in healthy adults and investigates mutations in key transcription regulatory regions of the AFP gene as potential drivers of AFP overexpression. METHODS: Four healthy adults with persistently elevated AFP levels (12.1 to 186.1 ng/mL) for >1 year, and 20 controls with low AFP levels (<0.61 to 2.9 ng/mL) were included in the study. AFP levels were collected from the families of two of the patients. We sequenced five regions that are critical for AFP expression: a promoter, two enhancers, and two silencers. RESULTS: One of the two cases in which family information was represented is the first case of hereditary persistence of AFP in South Korea. Mutations related to AFP overexpression were not found in the transcription regulatory regions among the four patients. CONCLUSIONS: Persistent AFP elevation is a heterogeneous condition with or without a hereditary pattern and may be caused by factors outside of transcription regulatory region changes. Further research on the mechanism of AFP elevation is needed.
Adult* ; alpha-Fetoproteins ; Biomarkers ; DNA Mutational Analysis ; Humans ; Korea ; Liver Regeneration ; Regulatory Sequences, Nucleic Acid

Biomarkers, Tumor ; blood ; Carcinoma, Hepatocellular ; diagnosis ; Humans ; Liver Neoplasms ; diagnosis ; RNA, Messenger ; blood ; alpha-Fetoproteins ; analysis

Female ; Humans ; Immunosuppressive Agents ; therapeutic use ; Middle Aged ; Sjogren's Syndrome ; blood ; drug therapy ; alpha-Fetoproteins ; analysis

Child ; Child, Preschool ; Combined Modality Therapy ; Female ; Germinoma ; blood ; therapy ; Humans ; Infant ; Male ; alpha-Fetoproteins ; analysis

PURPOSE: We evaluated oral metronomic capecitabine (MC) compared to intravenous doxorubicin in patients with advanced or metastatic hepatocellular carcinoma (HCC).METHODS: From January 2013 to December 2015, patients with Child-Pugh class A or early B were randomized either to MC group (500 mg twice daily continuously) or doxorubicin group (60 mg/m² every 21 days).RESULTS: Forty patients were included in each group. The baseline clinical characteristics of the enrolled patients were well balanced between the two groups. No complete response (CR) was reported in either group. In MC group, 2 patients (5%) had partial response (PR), 25 patients (62.5%) stable disease (SD) and 27 patients (67.5%) had disease control. In doxorubicin group, 4 patients (10%) achieved PR, 24 patients (60%) SD and 28 patients (70%) had disease control. The 6 months overall survival (OS) was 77.5% for MC and 75% for doxorubicin. The one year OS was 47.5% for MC and 42.5% for doxorubicin (P=0.521). The median OS survival was 10.2 months for MC and 9.6 months for doxorubicin (95% confidence interval, 3.2–6.5). The 6 month progression-free survival (PFS) was 45% for MC and 50% for doxorubicin. The one year PFS was 12.5% for MC and 7.5% for doxorubicin (P=0.289). The median time to progression was 3.4 months for MC and 3.1 months for doxorubicin. On multivariate analysis no significant impact for tumor stage, previous transhepatic arterial chemoembolization, portal vein thrombosis or median baseline alpha fetoprotein on OS.CONCLUSION: MC showed response rate and survival outcome comparable to doxorubicin in advanced HCC but with a more favorable toxicity profile.
alpha-Fetoproteins ; Capecitabine ; Carcinoma, Hepatocellular ; Disease-Free Survival ; Doxorubicin ; Humans ; Multivariate Analysis ; Venous Thrombosis

PURPOSE: This study was conducted in order to determine the most cost-effective strategy, in terms of interval and age range, for liver cancer screening in the high-risk population of Korea. MATERIALS AND METHODS: A stochastic model was used to simulate the cost-effectiveness of liver cancer screening by combined ultrasonography and alpha-fetoprotein testing when varying both screening intervals and age ranges. The effectiveness of these screening strategies in the high-risk population was defined as the probability of detecting preclinical liver cancer, and cost was based on the direct cost of the screening and confirmative tests. Optimal cost-effectiveness was determined using the incremental cost-effectiveness ratio. RESULTS: Among the 36 alternative strategies, one-year or two-year interval screening for men aged between 50 and 80 years, six-month or one-year interval screening for men aged between 40 and 80 years, and six-month interval screening for men aged between 30 and 80 years were identified as non-dominated strategies. For women, identified non-dominated strategies were: one-year interval screening between age 50 and 65 years, one-year or six-month interval screening between age 50 and 80 years, six-month interval screening between age 40 and 80 years, and six-month interval screening between age 30 and 80 years. CONCLUSION: In Korea, a one-year screening interval for men aged 50 to 80 years would be marginally cost-effective. Further studies should be conducted in order to evaluate effectiveness of liver cancer screening, and compare the cost effectiveness of different liver cancer screening programs with a final outcome indicator such as quality-adjusted life-years or disability-adjusted life-years.
Adult* ; alpha-Fetoproteins ; Cost-Benefit Analysis ; Female ; Humans ; Korea ; Liver Neoplasms* ; Male ; Mass Screening* ; Republic of Korea* ; Ultrasonography

Unexplained maternal serum-fetoprotein (MSAFP) elevation has been known to be associated with adverse obstetric outcomes, however it is not sufficiently useful as a screening test. This study was undertaken to determine whether uterine artery Doppler velocimetry could define a subset of patients with an elevated MSAFP level in whom complications of pregnancy might develop. The subjects included 179 women between 26 and 28 weeks' gestation with MSAFP > or = 2.5 multiples of the median, in whom either the presence of an early diastolic notch or a resistance index 0.6 was considered as an abnormal Doppler velocimetry finding. Those subjects who displayed abnormal Doppler velocimetry findings showed an increased incidence of preeclampsia, preterm birth, IUGR, and IUFD compared to those subjects with only elevated MSAFP (p < 0.05). No differences were observed in the incidence of LBW. Positive predictive values of adverse obstetric outcomes were significantly higher in the group having both elevated MSAFP and abnormal Doppler velocimetry compared to the group with only elevated MSAFP (p < 0.05). Uterine artery Doppler velocimetry in the second trimester can improve the value of unexplained MSAFP elevation in the prediction of adverse obstetric outcomes.
Adult ; Arteries/ultrasonography ; Female ; Forecasting ; Human ; Incidence ; Pregnancy/blood* ; Pregnancy Complications*/epidemiology ; Uterus/ultrasonography* ; Uterus/blood supply* ; alpha-Fetoproteins/analysis*

Since amniocentesis made prenatal diagnosis feasible in 1967, the method has been remarkably instrumental in obstetrical practice. A recent study conducted between 1980 and 1997 collected 11,000 amniocentesis procedures done at 10 university hospitals and tertiary centers in Korea. The study indicated that the use of amniocentesis on patients has increased steadily since 1980; however, the number has increased sharply for patients in the mid 1990's. In the 1980's, amniocentesis had been used primarily for patients in advanced maternal age groups (at least 35 years or older). In 1995, amniocentesis had been implemented for the detection of abnormal serum markers (37.6%), and by 1997, amniocentesis was involved in such diagnosis even more frequently (44.8%). Of the total number of uses, 270 (2.5%) involved the detection of chromosomal anomaly. In autosomal disorders, 96 Down syndrome, 33 Edward syndrome, and 6 Patau syndrome were diagnosed. In sex chromosomal anomaly, 10 Turner syndrome, and 10 Klinefelter syndrome were diagnosed. Added to that, 83 translocations, and 15 mosaicisms were diagnosed. Of the 322 cases with abnormal ultrasonographic findings, 21 (6.5%) resulted in chromosomal anomaly. The use of genetic amniocentesis as a prenatal diagnostic test for Korean women has risen 10-fold between 1988 and 1998. As stated earlier, amniocentesis had earlier been used primarily for those in advanced maternal age groups. Today, maternal serum markers and highly sensitive ultrasonic technology can detect many fetal anomalies which eventually necessitate amniocentesis.
Adult ; Amniocentesis* ; Chromosome Abnormalities/epidemiology* ; Female ; Gestational Age ; Human ; Korea/epidemiology ; Maternal Age ; Pregnancy ; Ultrasonography, Prenatal ; alpha-Fetoproteins/analysis

PURPOSE: The aims of this study were to find the risk factor and outcomes of patients with an early recurrence (ER) of a hepatocellular carcinoma (HCC) after liver transplantation (LT) and the actual impact of transarterial chemoembolization (TACE) before LT for a HCC on patient survival and HCC recurrence. METHODS: Ninety-eight cases of adult LT, performed between September 1995 and January 2006, were evaluated. The risk factors and prognosis of patient with a HCC after transplantation for an ER, defined as a recurrence within 6 months of transplantation, and the effects of Pre-LT TACE on the disease-free and overall survival rates, as well as the patterns of recurrence after LT, were studied. RESULTS: A total of 18 patients (18.4%) experienced a HCC recurrence after LT; 10 and 8 patients had early and late recurrences, respectively. From a univariate analysis, the serum alpha-fetoprotein (P=0.003), tumor size (P=0.003), serosa invasion (P=0.000), tumor grade (P=0.011) and vascular invasion (P=0.014) were statistically significant risk factors for an ER. From a multivariate analysis, the presence of serosa invasion of a HCC was the only independent risk factor for an ER (P=0.009; OR=9.407: 95% CI, 1.764~50.164). There was no difference in the disease free sur-vival and overall survival rates between the TACE and without TACE groups, but the extrahepatic recurrence rate was higher in the TACE than without TACE group. CONCLUSION: Serosa invasion by a HCC is independently associated with an ER of HCC after LT. Pre-LT TACE does not influence the disease-free and overall survivals after LT for a HCC.
Adult ; alpha-Fetoproteins ; Carcinoma, Hepatocellular* ; Humans ; Liver Transplantation* ; Liver* ; Multivariate Analysis ; Prognosis ; Recurrence* ; Risk Factors* ; Serous Membrane ; Survival Rate