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1.
J Obstet Gynaecol ; 37(6): 727-730, 2017 Aug.
Article in English | MEDLINE | ID: mdl-28421853

ABSTRACT

Hyperlipidaemia and hypercholesterolaemia are risk factors of atherosclerosis and cardiovascular disease. The reference range of lipids during pregnancy has not yet been clearly set. This study sought to measure lipid parameters and pentraxin (PTX) 3 levels in low-risk pregnant women. The participants had serial blood samples taken between their 6th-9th week, 10th-13th week, 14th-19th week, 24th-29th week and 35th-40th week (as long as there were no contractions), during the labour period, and 2 days after delivery. The same tests were carried out on cord blood after delivery. There were 116 participants, of which 72 were included in the study and 44 were excluded. Total-c, HDL-c, LDL-c, TG and PTX3 increased as the pregnancy progressed. During labour, Total-c, HDL-c, LDL-c and PTX3 increased, but TG decreased. After delivery, TG and PTX3 increased but other parameters decreased from the value measured during the 35th-40th week. This study measured changes in lipid profiles and PTX3 during pregnancy, labour and after delivery, establishing a foundation for future studies.


Subject(s)
C-Reactive Protein/metabolism , Lipids/blood , Pregnancy/blood , Serum Amyloid P-Component/metabolism , Adult , Female , Humans , Reference Values
2.
Int J Med Sci ; 12(10): 773-9, 2015.
Article in English | MEDLINE | ID: mdl-26516305

ABSTRACT

BACKGROUND: This study investigated the roles of progesterone and leptin in placenta invasion, which is closely related to pregnancy prognosis. We examined the effects of leptin and progesterone on the invasion of BeWo cells, a human trophoblastic cell line, and the effect of concurrent treatment. METHODS: Cells were treated with leptin (0, 5, 50, or 500 ng/mL) or progesterone (0, 2, 20, or 200 µM) and cultured in an invasion assay. Cells treated with 500 ng/mL leptin were also treated with progesterone (0, 2, 20, or 200 µM) in the invasion assay for 48 h. The number of cells that invaded the lower surface was counted in five randomly chosen fields using a light microscope with a 200× objective. The mRNA expression levels of MMP-9, TIMP1, TIMP2, and E-cadherin were detected by semi-quantitative PCR. RESULTS: Invasion of BeWo cells was promoted by leptin and influenced by both leptin concentration and treatment duration. Invasion was most effective at 500 ng/mL leptin and 48 h culture. Leptin-induced invasiveness was suppressed by progesterone in a dose-dependent manner. Leptin significantly decreased the expression levels of TIMP1 and E-cadherin, whereas progesterone significantly decreased expression of MMP-9 and significantly increased levels of TIMP1, TIMP2, and E-cadherin. CONCLUSIONS: Leptin promotes invasion of BeWo cells, and progesterone suppresses leptin-induced invasion by regulating the expressions of MMP-9, TIMP1, TIMP2, and E-cadherin. The balance between leptin and progesterone may play an important role in human placenta formation during early pregnancy.


Subject(s)
Leptin/pharmacology , Progesterone/pharmacology , Trophoblasts/drug effects , Cadherins/genetics , Cell Line, Tumor , Dose-Response Relationship, Drug , Female , Humans , Matrix Metalloproteinase 9/genetics , Neoplasm Invasiveness , RNA, Messenger/analysis , Tissue Inhibitor of Metalloproteinase-1/genetics , Tissue Inhibitor of Metalloproteinase-2/genetics , Trophoblasts/chemistry
3.
Pain Med ; 15(9): 1637-9, 2014 Sep.
Article in English | MEDLINE | ID: mdl-21995334

ABSTRACT

OBJECTIVE: Chronic pelvic pain may present a diagnostic challenge. SETTING: Academic tertiary care center. DESIGN: Case report. CASE REPORT: A 46-year-old woman presented with pain on micturition and a 15-month history of right-sided pelvic pain aggravated by an abdominal massage. Her course and outcome, aided by use of computed tomography (CT) scan, is described, identifying a 6-cm, mass-like lesion in the right lower quadrant enclosing an ambiguous linear calcified lesion, which on laparotomy revealed a fish bone embedded in a section of the terminal ileum and the perivesical area. CONCLUSION: Chronic pelvic pain refractory to treatment merits consideration of CT to examine for foreign body.


Subject(s)
Abscess/etiology , Chronic Pain/etiology , Diagnostic Errors , Foreign Bodies/complications , Ileum , Pelvic Pain/etiology , Animals , Appendectomy , Bone and Bones , Calcinosis/complications , Calcinosis/diagnosis , Calcinosis/diagnostic imaging , Cesarean Section , Dysuria/etiology , Female , Fishes , Foreign Bodies/diagnostic imaging , Foreign Bodies/surgery , Humans , Ileum/diagnostic imaging , Ileum/surgery , Laparotomy , Middle Aged , Pelvic Inflammatory Disease/diagnosis , Tissue Adhesions/complications , Tissue Adhesions/diagnosis , Tomography, X-Ray Computed
4.
Int J Med Sci ; 9(9): 738-42, 2012.
Article in English | MEDLINE | ID: mdl-23136535

ABSTRACT

BACKGROUND: The purpose of this research is to discover whether measurement of cervical length and cervical volume at term is helpful in predicting the onset of labor in VBAC candidates. METHODS: Transvaginal sonographic evaluations of the cervixes of pregnant women who desired to undergo VBAC were performed between 36 - 40 weeks gestation. Clinical information such as labor onset time, gestational age at delivery and delivery mode was gathered from medical records. RESULTS: A total of 514 pregnant women participated in this study. Cervical length was significantly longer in the group that delivered 7 days or more after measurement than in the group that delivered within 7 days of measurement (43±0.77 cm vs. 2.99±0.72 cm, p< 0.001). Cervical volume was significantly larger in the group that delivered at and after 7 days than in the group that delivered within 7 days (29.21±11.62 cm(3) vs. 34.07±13.41 cm(3), p=0.014). The cervical length ROC curve was significantly more predictive than the cervical volume ROC curve (AUC: 0.711 vs 0.594, p= 0.001). There were no significant differences between the combined cervical length/volume ROC curve and the cervical length ROC curve alone (p= 0.565). The AUC of the cervical length ROC curve to predict postterm pregnancy was 0.729. CONCLUSION: Measuring cervical length is helpful in predicting the onset of spontaneous labor within 7 days and posterm delivery in VBAC candidates.


Subject(s)
Cervical Length Measurement , Cervix Uteri/diagnostic imaging , Labor Onset/physiology , Pregnancy, Prolonged/diagnostic imaging , Vaginal Birth after Cesarean , Cohort Studies , Female , Gestational Age , Humans , Labor, Induced , Predictive Value of Tests , Pregnancy , ROC Curve , Sensitivity and Specificity , Ultrasonography, Prenatal/methods
5.
Int J Med Sci ; 9(5): 387-90, 2012.
Article in English | MEDLINE | ID: mdl-22811613

ABSTRACT

An amniocele is a herniation of the amniotic sac through a uterine defect. Uterine rupture during pregnancy may develop as a result of a pre-existing injury, uterine anomaly, or unscarred uterus. A 30-year-old patient, with a history of 2 vaginal deliveries, presented an amniocele complicated by left fundal perforation and was evaluated with 3-dimensional ultrasound at 23 weeks. Because of worsening lower abdominal pain and vaginal bleeding, she underwent exploratory laparotomy. Herein, we report a uterine rupture with amniocele.


Subject(s)
Pregnancy Complications/diagnostic imaging , Pregnancy Complications/surgery , Uterine Rupture/diagnostic imaging , Uterine Rupture/surgery , Adult , Female , Hernia, Umbilical/diagnostic imaging , Hernia, Umbilical/surgery , Humans , Pregnancy , Ultrasonography
6.
Int J Med Sci ; 8(8): 643-8, 2011.
Article in English | MEDLINE | ID: mdl-22135609

ABSTRACT

PURPOSE: To compare umbilical arterial gas parameters in the second twin of twin pregnancies according to the mode of delivery. METHODS: We retrospectively analyzed the medical records of twin deliveries after 34 weeks of gestation for 3 years. Excluding the cases which underwent emergency cesarean delivery during trial of labor, a total of 79 twin gestations had umbilical arterial blood gas values available and were and divided into cesarean delivery group (N=40) and vaginal delivery group (N=39). The mean differences of umbilical arterial blood parameters and the Apgar score between the first and second twin in each pregnancy were compared according the mode of delivery. RESULTS: The differences of umbilical arterial gas parameters between twin siblings showed no significant difference according to the mode of delivery. With regard to the 1 minute and 5 minute Apgar scores, the differences between twin siblings are significantly increased in vaginal delivery group compared to cesarean delivery group (p=0.048, and p=0.038, respectively). In comparing the 28 cases delivered vaginally with an inter-twin delivery interval < 10 minutes and 40 cases delivered by cesarean section, no significant differences were observed in the umbilical arterial gas parameters and Apgar scores. CONCLUSION: The inter-twin umbilical arterial blood gas parameters according to the mode of delivery showed no difference. For twin deliveries, it is relatively safe to plan for a vaginal delivery, but an effort should be made to reduce the inter-twin delivery interval time.


Subject(s)
Blood Gas Analysis , Pregnancy Outcome , Twins , Adult , Apgar Score , Cesarean Section , Delivery, Obstetric , Female , Humans , Pregnancy , Retrospective Studies
7.
Int J Med Sci ; 8(7): 554-7, 2011.
Article in English | MEDLINE | ID: mdl-21960747

ABSTRACT

OBJECTIVES: Placenta previa is a major cause of neonatal anemia. The purpose of this study was to elucidate the risk factors of neonatal anemia in placenta previa. METHODS: The study was conducted on 158 placenta previa patients at 3 hospitals in affiliation with the Catholic Medical Center, Seoul, Korea from May 1999 through December 2009. The subjects were divided in to 2 groups: 47 placenta previa patients with neonatal anemia, and 113 placenta previa patients without neonatal anemia. The subjects' characteristics were compared. Logistic regression was used to control for confounding factors. RESULTS: Anterior placental location (OR 2.48; 95% CI: 1.20-5.11) was an independent risk factor of neonatal anemia after controlling for potential confounders. CONCLUSION: To manage neonatal anemia in placenta previa patients, obstetricians should do their best to detect placental location. Pediatricians should consider the high possibility of neonatal anemia in cases involving anterior placental location.


Subject(s)
Anemia, Neonatal/epidemiology , Placenta Previa/epidemiology , Adult , Anemia, Neonatal/etiology , Female , Gestational Age , Humans , Infant, Newborn/blood , Korea , Logistic Models , Placenta Previa/pathology , Pregnancy , Pregnancy Outcome , Retrospective Studies , Risk Factors
8.
Int J Med Sci ; 8(5): 424-7, 2011.
Article in English | MEDLINE | ID: mdl-21814475

ABSTRACT

Spontaneous uterine rupture is lethal in pregnant women. Placenta percreta-induced spontaneous uterine rupture in the first trimester is extremely rare and difficult to diagnose. A 35-year-old pregnant woman, with a history of 2 vaginal deliveries and 2 spontaneous abortions treated by dilatation and curettage, was admitted to the emergency department because of sudden severe abdominal pain; the gestational age as calculated by sonography was 14 weeks. Diagnostic laparoscopy was considered for surgical abdomen and fluid collection that was noted in sonography. During laparoscopy, uterine rupture with massive bleeding was detected; therefore, total abdominal hysterectomy was performed. The patient was discharged without any complications. Pathological analysis of the uterine specimen revealed placenta percreta to be the cause of the rupture. Uterine rupture should be considered in the differential diagnosis in all pregnant women who present with acute abdomen, show fluid collection in the peritoneal cavity. In addition, we recommend laparoscopy for the investigation of acute abdomen with unclear diagnosis in the first trimester of pregnancy.


Subject(s)
Laparoscopy , Placenta Accreta , Uterine Rupture/diagnosis , Uterine Rupture/etiology , Adult , Diagnosis, Differential , Female , Humans , Hysterectomy , Pregnancy , Pregnancy Trimester, First , Treatment Outcome , Uterine Hemorrhage/etiology , Uterine Rupture/surgery
9.
Arch Gynecol Obstet ; 284(6): 1389-97, 2011 Dec.
Article in English | MEDLINE | ID: mdl-21387087

ABSTRACT

PURPOSE: We attempted to examine the effects of delivery via emergency cesarean section in nullipara, presenting with increase in body weight during pregnancy and pre-pregnant body mass index. METHODS: A total of 1,024 nullipara with singleton pregnancy who experienced labor pain after 37 gestational weeks at St.Vincent's Hospital of Catholic University of Korea during 1 January 2004 to 31 March 2010 were enrolled in this study. Study patients were divided into four groups based on pre-gestational BMI, two groups based on weight gain more than 18 kg during pregnancy and three groups based on weight gain according to the guidelines of IOM (Institute of Medicine). Univariate and multivariate analysis were performed. RESULTS: On univariate analysis, the frequency of emergency cesarean section was increased both in pre-pregnant overweight women and women with excess weight gain during pregnancy. On multivariate analysis, however, increase in body weight during pregnancy according to IOM guidelines did not independently affect the frequency of emergency cesarean section. If the degree of increase in body weight during pregnancy was divided based on a definite numeric value of 18 kg, the frequency of cesarean section was significantly increased. CONCLUSIONS: For successful spontaneous delivery, the nullipara should become pregnant when the pre-gestational BMI is maintained at an appropriate level. We also propose that women should not gain more than 18 kg until delivery in all pre-BMI groups.


Subject(s)
Body Mass Index , Cesarean Section/statistics & numerical data , Parity , Pregnancy Complications/epidemiology , Weight Gain , Adolescent , Adult , Cohort Studies , Emergency Medical Services , Female , Humans , Incidence , Pregnancy , Pregnancy Outcome , Retrospective Studies , Risk Factors , Young Adult
10.
Arch Gynecol Obstet ; 284(1): 73-8, 2011 Jul.
Article in English | MEDLINE | ID: mdl-20658142

ABSTRACT

PURPOSE: The aim of this study was to evaluate the effect of absent or reversed end-diastolic umbilical artery Doppler flow on neonatal outcome independent of oligohydramnios, gestational age, and maternal factors. METHODS: From January 2004 to March 2010 we reviewed 76 cases at our hospital, which were diagnosed with intrauterine growth restriction (IUGR). Among those cases, the existence of absent or reversed end-diastolic velocity of umbilical artery (AEDV) was considered abnormal. We set the group that had no abnormal signs as the control group (57 cases), and compared it with the AEDV group (19 cases). Logistic regression was used to control for oligohydramnios and gestational age. RESULTS: The gestational age was lower in the AEDV group compared to that of the control group. Neonatal weight, platelet count were also lower in the AEDV group and serum SGOT level, the frequency of non-reassuring fetal heart beat pattern were higher in AEDV group compared to that of the control group independent of gestational age. Perinatal outcomes such as Apgar score at 1 min below 4, use of a ventilator, admission to the neonatal intensive care unit (NICU), respiratory disease, neurologic disease, neonatal sepsis, anemia, thrombocytopenia, and neonatal mortality were statistically less favorable in the AEDV group compared to those in the control group independent of gestational age and presence of oligohydramnios. There were more intrauterine fetal death histories and preeclampsia in the AEDV group compared the control group. CONCLUSION: The waveform of umbilical artery Doppler velocity is an informative parameter of perinatal outcomes independent of gestational age or the presence of oligohydramnios in IUGR patients. It is especially important to check the waveform of umbilical artery Doppler velocity in IUGR patients with preeclampsia and IUGR patients with FDIU history.


Subject(s)
Fetal Growth Retardation/epidemiology , Infant, Newborn, Diseases/epidemiology , Umbilical Arteries/physiopathology , Adult , Blood Flow Velocity , Diastole , Female , Fetal Growth Retardation/physiopathology , Gestational Age , Humans , Infant, Newborn , Male , Oligohydramnios/physiopathology , Pregnancy , Republic of Korea/epidemiology , Retrospective Studies
11.
Arch Gynecol Obstet ; 282(4): 363-9, 2010 Oct.
Article in English | MEDLINE | ID: mdl-19787364

ABSTRACT

PURPOSE: To investigate cytokine- and oxidation-related genes for preeclampsia using DNA microarray analysis. METHODS: Placentas were collected from 13 normal pregnancies and 13 patients with preeclampsia. Gene expression was studied using DNA microarray. Among significantly expressed genes, we focused on genes associated with cytokines and oxidation, and the results were confirmed using quantitative real time-polymerase chain reaction (QRT-PCR). RESULTS: 415 genes out of 30,940 genes were altered by > or =2-fold in the microarray analysis. 121 up-regulated genes and 294 down-regulated genes were found to be in preeclamptic placenta. Six cytokine-related genes and 5 oxidation-related genes were found from among the 121 up-regulated genes. The cytokine-related genes studied included oncostatin M (OSM), fms-related tyrosine kinase (FLT1) and vascular endothelial growth factor A (VEGFA), and the oxidation-related genes studied included spermine oxidase (SMOX), l cytochrome P450, family 26, subfamily A, polypeptide 1 (CYP26A1), acetate dehydrogenase A (LDHA). These six genes were also significantly higher in placentas from patients with preeclampsia than in those from women with normal pregnancies. The placental tissue of patients with preeclampsia showed significantly higher mRNA expression of these six genes than the normal group, using QRT-PCR. CONCLUSION: DNA microarray analysis is one of the great methods for simultaneously detecting the functionally associated genes of preeclampsia. The cytokine-related genes such as OSM, FLT1 and VEGFA, and the oxidation-related genes such as LDHA, CYP26A1 and SMOX might prove to be the starting point in the elucidation of the pathogenesis of preeclampsia.


Subject(s)
Cytokines/genetics , Gene Expression Regulation, Developmental , Placenta/metabolism , Pre-Eclampsia/genetics , Adult , Case-Control Studies , Cytokines/metabolism , Down-Regulation , Female , Gene Expression , Gene Expression Profiling , Gestational Age , Humans , Oligonucleotide Array Sequence Analysis , Placenta/blood supply , Polymerase Chain Reaction , Pre-Eclampsia/metabolism , Pregnancy , RNA, Messenger , Up-Regulation
12.
J Matern Fetal Neonatal Med ; 22(11): 1057-62, 2009 Nov.
Article in English | MEDLINE | ID: mdl-19900044

ABSTRACT

OBJECTIVE: To evaluate the effect of labor progress prior to cesarean delivery on the outcome of vaginal birth after cesarean delivery (VBAC). METHODS: The medical records of women attempting VBAC between January 2000 and February 2008 were reviewed. All women had only one previous cesarean and underwent spontaneous labor. RESULTS: Among 1148 enrolled women, 956 (83.3%) achieved a successful VBAC. Birth weight, previous indication for cesarean delivery and oxytocin augmentation were significantly associated with VBAC outcome. By multivariate analysis, a cervical dilatation >or=8 cm at previous cesarean was independently predictive of successful VBAC in women with a previous cesarean for non-recurrent indications (p = 0.046), yielding a VBAC success rate of 93.1%, whereas the extent of cervical dilatation at the previous cesarean did not affect the outcome of subsequent delivery in women with a previous cesarean for recurrent indications. CONCLUSIONS: Women with cesarean for non-recurrent indications who achieved a cervical dilatation >or=8 cm may be the best candidates for VBAC, with the greatest likelihood of a successful VBAC. Labor progress at previous cesarean can serve as a valuable indicator for VBAC outcome in women with a previous cesarean for non-recurrent indications, and therefore should be discussed as part of preconception counseling.


Subject(s)
Cesarean Section , Labor Stage, First , Vaginal Birth after Cesarean/statistics & numerical data , Adult , Birth Weight , Female , Humans , Infant, Newborn , Labor, Induced/statistics & numerical data , Pregnancy , Trial of Labor
13.
J Clin Ultrasound ; 34(6): 306-8, 2006.
Article in English | MEDLINE | ID: mdl-16788963

ABSTRACT

We present the prenatal 3-dimensional (3D) sonographic findings in a case of holoprosencephaly with ethmocephaly at 32 weeks' gestation. The sonographic diagnosis was based on the intracranial findings of a single ventricle and bulb-shaped appearance of the thalami and facial abnormalities, including hypotelorism with proboscis. Chromosome study of the fetus revealed a normal female karyotype (46,XX). Postmortem examination confirmed the 3D sonographic findings. This case demonstrates that the use of 3D sonography improves the imaging and the understanding of the condition of the intracranial abnormalities and the facial anomalies.


Subject(s)
Holoprosencephaly/diagnostic imaging , Imaging, Three-Dimensional , Ultrasonography, Prenatal , Abortion, Induced , Adult , Female , Humans , Pregnancy , Pregnancy Trimester, Third
14.
J Obstet Gynaecol Res ; 31(5): 436-8; discussion 438, 2005 Oct.
Article in English | MEDLINE | ID: mdl-16176514

ABSTRACT

Tuberculous peritonitis in pregnancy is one of the least common forms of extrapulmonary tuberculosis in pregnancy. The case is described herein of a 23-year-old primigravida woman with primary tuberculous peritonitis in pregnancy at 24 weeks' gestation. Excisional biopsy taken from the peritoneum during laparotomy resulted in the histopathologic diagnosis of tuberculous peritonitis. The patient made a good physical recovery after being placed on antituberculous chemotherapy and gave birth to a healthy male neonate of 2.5 kg at 37 weeks' gestation by vaginal delivery.


Subject(s)
Peritonitis/pathology , Pregnancy Complications, Infectious/microbiology , Tuberculosis/pathology , Adult , Antitubercular Agents/therapeutic use , Biopsy , Drug Therapy, Combination , Female , Humans , Infant, Newborn , Male , Peritonitis/drug therapy , Peritonitis/microbiology , Pregnancy , Pregnancy Complications, Infectious/pathology , Tuberculosis/drug therapy , Tuberculosis/microbiology
15.
J Clin Ultrasound ; 33(4): 190-2, 2005 May.
Article in English | MEDLINE | ID: mdl-15856517

ABSTRACT

Intramural ectopic pregnancy is a very rare diagnosis. Establishing a diagnosis is difficult and is often made intraoperatively. Demonstration of a live extrauterine gestation is the only specific sign of such a pregnancy. A small number of ectopic pregnancies are interstitial or cornual pregnancies. Rupture of an intramural ectopic pregnancy is a serious clinical complication. Diagnosis of this ectopic pregnancy can sometimes be made using 2-dimensional transvaginal ultrasound (TVS), but it may also require 3-dimensional TVS. We present the case of a 25-year-old gravida 0, para 0 woman with amenorrhea lasting 6(+5) weeks. Previous surgery included a right adnexectomy for torsion of a right dermoid cyst. The patient's serum hCG was elevated. TVS provided a detailed view of the endometrial cavity. The results of 2-dimensional TVS suggested the presence of an ectopic pregnancy. The sonogram showed a gestational sac with an embryonic pole and a yolk sac, which was separated from the endometrium. Use of 3-dimensional TVS demonstrated a live embryo in a gestational sac surrounded by myometrium below the right cornu lying outside the endometrium. This finding was confirmed by laparotomy and the conceptus was excised. The patient had an uneventful postoperative course and was discharged 7 days after surgery. In our case, the previous adnexectomy was an identifiable risk factor. Nonetheless, making a diagnosis of an intramural pregnancy was challenging. Suspicion may arise when sonography has revealed an intramural gestational sac.


Subject(s)
Pregnancy, Ectopic/diagnostic imaging , Ultrasonography, Prenatal/methods , Adult , Diagnosis, Differential , Female , Humans , Imaging, Three-Dimensional , Pregnancy , Pregnancy, Ectopic/surgery
16.
J Obstet Gynaecol Res ; 28(3): 141-8, 2002 Jun.
Article in English | MEDLINE | ID: mdl-12214829

ABSTRACT

OBJECTIVE: To investigate whether multiparameter flow cytometric analysis of solid tumor specimens, including gynecologic tumors, which were stained triply with phycoerythrin (PE), fluorescein isothiocyanate (FITC) and propidium iodide (PI), can be performed simultaneously without interference from normal diploid cell populations and spectral overlap on a standard flow cytometer. METHODS: MCF-7 breast cancer cell lines and heterogeneous cell populations mixed with MCF-7 cells and human peripheral blood lymphocytes (PBL) were fixed with 1% paraformaldehyde and permeabilized with 100% methanol. Cytokeratin and several proliferation-associated cellular antigens (proliferating cell nuclear antigen (PCNA), p53, c-erbB/2 and c-myc) were labeled with PE and FITC, which was followed by DNA staining using PI. These labeled cells were measured on a standard FACScan flow cytometer equipped with a 488 nm single laser. RESULTS: The coefficient of variation (CV) of the G0G1 peak of MCF-7 cells was 4.3 and the cell cycle phase fractions of G0G1, S and G2M were 44.9, 45.9 and 9.2%, respectively. Fluorescein isothiocyanate, PE and PI fluorescences were detected without interference. The MCF-7 cells expressed cytokeratin, PCNA, p53, c-erbB/2 and c-myc antigen. In the heterogeneous population of MCF-7 cells mixed with PBL, two cellular populations were clearly separated into diploid PBL and aneuploid MCF-7 cells without interference. The CV of G0G1 peak of PBL was 2.3 and the G0G1, S and G2M phase fractions were 85.5, 2.7 and 11.8%, respectively. The DNA index of MCF-7 cells was 1.7, which indicated that the MCF-7 cell line was composed of tumor cells with aneuploid DNA. The CV of the G0G1 peak of the MCF-7 cells was 4.2, and the cell cycle phase fractions were 47.5% for G0G1, 42.3% for S, and 10.2% for G2M. The MCF-7 cells expressed cytokeratin, but the PBL did not. CONCLUSIONS: Multiparameter flow cytometer analysis was useful to determine DNA ploidy status, phase fraction of the cell cycle and expression of cellular antigens and selective cytokeratin expression allowed epithelial originated tumor cells to be differentiated from normal stromal cells. This analysis could be performed without interference of spectral overlaps of fluorochromes using software-based algorithmic compensation of spectral overlaps. Thus, this method offers new possibilities for multiparameter flow cytometric analysis and its use should be extended to future studies of the diagnosis, treatment and prediction of prognosis of the neoplasm.


Subject(s)
Breast Neoplasms/genetics , DNA, Neoplasm/analysis , Flow Cytometry/methods , Female , Fluorescein-5-isothiocyanate , Fluorescent Antibody Technique , Humans , Phycoerythrin , Propidium , Staining and Labeling , Tumor Cells, Cultured
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