A sex determination method has been developed using the polymerase chain reaction (PCR) which involved the amplification of sex determining region Y (SRY) gene and the amplification of the HLA-DQ gene as an internal control, in the one PCR reaction using two sex of the primers. The PCR products were sort ADN of 139 bp for SRY and 239/242 bp for HLA-DQ region spectively. The amplification of this method in prenatal diagnosis to prevent genetic diseases, in forensic science.
Fetus ; Neural Tube Defects ; Aneuploidy

In this study, serum samples collected from 48 high-risk pregnant women were screened for three markers: alpha-feto protein (AFP), beta-human chorionic gonadotropin (b-HCG) and conjugated estriol (UE3) to define the risk of congenital aneuploidy and neural tube defect...The result showed the serum AFP level raised in two cases (more than 2.5MoM - Multiple of Median). One case has decrease in AFP (less than 0.06MoM) combined with decrease in UE3. Once has decrease in AFP (less than 0.06mOM) combined with increase in b-HCG. One case has decrease in AFP (less than 0.06MoM) combined with decrease in UE3 and increase in b-HCG level. One case has decrease in AFP alone (less than 0.06MoM). Fetal neural tube defect was identified in one case. Other four cases have increase in b-HCG only. these pregnancies should be referred to genetic study and further tests.
Fetus ; Neural Tube Defects ; Aneuploidy

Evaluation the ratio of sex chromosomal aneuploidy in NHL patient before therapy spermatozoa by FISH (Fluorescent Insitu Hybridization) technique. Comparison semen of four NHL patients before chemotherapy or irradiation with semen of four controls in the sperm bank. No statistically significant changes in semen in patient group compared to controls. The abnormal ratio with two somatic chromosome 8-8-X or 8-8-Y and diploidy X-Y-8-8 are higher than controls. The rate of aneuploidy in sex chromosome can increase if used in assisted fecundation
Lymphoma, Non-Hodgkin ; Therapeutics ; Spermatozoa ; Aneuploidy ; Sex

The specificity of cytologic examination in effusions is high but the sensitivity is low. Therefore, various ancillary methods for the detection of malignant cells in effusions have been proposed. The presence of an aneuploid cell population is generally considered diagnostic of malignancy. The purpose of this study is to determine whether the routine use of flow cytometry adds to standard cytologic evaluation in effusions. We did flow cytometric DNA analysis in 76 effusions(28 malignant and 48 benign fluids). All the 48 benign effusions were diploid. There were 12(42.9%) aneuploid and 16(67.1%) diploid malignant effusions. Based on these results flow cytometric DNA analysis had a sensitivity of 42.9% and a specificity of 100%. These results suggest that flow cytometric DNA analysis may be a useful adjunct to conventional cytology, but its principal limitation is its relatively low sensitivity.
Aneuploidy ; Diploidy ; DNA* ; Flow Cytometry ; Sensitivity and Specificity

Flow cytometry was used to measure the DNA content in archived paraffin-embedded human prostatic cancer tissue for 93 patients with known outcomes that presented between 1980 and 1988 Of these. 25 patients had clinically localized lesions, while 68 patients presented with advanced diseases. Fifty seven tumors (61%) contained a aneuploid stem line. The Frequency of aneuploid in creased with advancing stage and most tumors confined to the prostate gland were diploid. The degree of glandular differentiation was characterized by the Gleason sum. One-third of tumors with a Gleason sum of 2 to 4 were aneuploid. whereas 78% of tumors with a Gleason sum of 8 to 10 were aneuploid. Among aneuploid tumors. 11% were localized carcinomas. 89% were advanced status. When tumors were classified according to both DNA ploidy and degree of glandular differentiation. the subgroups of tumors with the highest and lowest degree of malignant potential became apparent. Only 27% of diploid tumors with Gleason sum of 2 to 4 were advanced tumors. but 100% of aneuploid tumors with Gleason sum of 8 to 10 were advanced tumors. The influence of DNA ploidy on survival was examined with Kaplan-Meier method and the generalized Wilcoxon test. Overall, patients with diploid tumors had a survival advantage over patients with aneuploid tumors(p<0.05) However. when adjusted for stage, glandular differentiation, the difference in survival curves for aneuploid and diploid was not significant(p>0.05). But, in patients of Stage D with intermediate grade tumors, the survival difference between diploid and aneuploid tumors were obvious. In conclusion, flow cytometry can be expected to become a valuable adjunct to clinical staging and morphologic grading (Gleason sum) in the assessment of the malignant potentials of prostatic cancer.
Aneuploidy ; Diploidy ; DNA* ; Flow Cytometry ; Humans ; Ploidies* ; Prostate* ; Prostatic Neoplasms

PURPOSE: The aim of the present study was to evaluate the clinical utility of Ki 67 labelling index and proliferative indices measured by flow cytometry in breast carcinomas. METHODS: We conducted immunohistochemical assay for Ki 67 and analyzed the DNA content and S-phase fraction by flow cytometry in 113 cases of primary breast carcinomas. Relationship between proliferative indices measured by two method and clinical biological parameters was also analyzed. RESULTS: Ki 67 labelling index than average was increased in 53 tumors (46.9%) and demonstrated a significant correlation with S-phase fraction. Higher Ki 67 labelling index was found in 28 (59.6%) of 47 tumors with high S-phase fraction whereas it was found in only 8 tumors (30.8%) with low S-phase fraction. Concordance between Ki 67 labelling index and S-phase fraction was 63.1% (p=0.017). Tumor with high S-phase fraction had a tendency to have an aneuploid. Ki 67 labelling index correlated significantly with histologic grade (p=0.001) and nuclear grade (p=0.001). An inverse correlation was found between Ki 67 and estrogen receptor expression (p=0.004). CONCLUSION: Ki 67 labelling index significantly correlated with S-phase fraction measured by flow cytometry. Ki 67 labelling index seems to be a clinically useful method because it is rapid, practical and easily performed by immunohistchemical assay.
Aneuploidy ; Breast Neoplasms* ; Breast* ; DNA ; Estrogens ; Flow Cytometry*

PURPOSE: DNA flow cytometry is a simple and easy method to assess the DNA content and the cell-cycle distribution of a tumor cell. The prognostic significance of the DNA content and the S-phase fraction in a gastric carcinoma has been controversial. The purpose of this study was to evaluate the prognostic significance of the nuclear DNA content and the S-phase fraction in patients with a gastric carcinoma. METHODS: Between May 1995 and March 1996, 94 patients who were underwent a gastric resection for a gastric carcinoma were evaluated with DNA flow cytometry. Of them, 88 patients underwent a gastric resection with curative intent. The relationship of variable clinicopathological factors and of recurrence pattern to survival and nuclear DNA content were assessed. RESULTS: The mean age was 55 years. 55 patients (58.5%) exbitied diploidy and 39 patients (41.5%) aneuploidy. There was no relationship between the clinicopathological factors and either the ploidy pattern or the S-phase fraction. Though the recurrence and its pattern were not different between the two ploidy group (p=0.860, 0.137), diploidy tended to recur locoregionally and aneuploidy hematogenously. CONCLUSION: The ploidy pattern was a significant prognostic factor in gastric carcinomas, but should be interpreted carefully.
Aneuploidy ; Diploidy ; DNA* ; Flow Cytometry ; Humans ; Ploidies ; Prognosis ; Recurrence

Recent studies suggest the flow cytometric DNA ploidy analysis may be useful in defining the biologic behavior and prognosis in prostatic adenocarcinoma. Flow cytometric nuclear DNA ploidy analysis was used to study the relationship between DNA ploidy, clinical stage and histopathological grade in thirty two patients with prostatic adenocarcinomas diagnosed from 1987 to 1990. The incidence of aneuploidy in the total population was 18 of 32 (56.3%). The frequency of aneuploidy increased with advancing stage and 63.2% of carcinomas with distant metastases were aneuploidy. Aneuploidy was more frequent in high Gleason sum carcinomas than in low. The incidence of aneuploidy in carcinomas with high Gleason grade (Gleason sum 8 to 10) was 77.8%. comparing to 33.3% in low Gleason grade (Gleason sum 2 to 4). When carcinomas classified according to both DNA ploidy and degree of glandular differentiation, then subgroups with the highest and lowest degree of malignant potential became apparent. None of diploid tumors with low Gleason grade (Gleason sum 2 to 4) formed metastasis, but 71.4% of aneuploidy tumors with high Gleason grade (Gleason sum 8 to 10) formed metastases. The influence of DNA ploidy on survival was examined with Kaplan-Meier method and the generalized Wilcoxon test. Overall, the patients with diploid tumor had a survival advantage over patients with aneuploid tumor (p<0.05). In patients with stage C and D, there was increasing tendency of survival in diploid group. In conclusion flow cytometric determination of DNA ploidy in prostatic adenocarcinoma is correlated strongly with clinical stage and Gleason sum and can be expected to be a valuable adjunct b clinical stage and histopathological grade in the assessment of malignant potential of prostatic adenocarcinoma.
Adenocarcinoma* ; Aneuploidy ; Diploidy ; DNA* ; Humans ; Incidence ; Neoplasm Metastasis ; Ploidies* ; Prognosis

DNA content of 25 cases of breast carcinoma was analyzed by flow cytometry in both fresh and formalin-fixed, paraffin-embedded tissue. Aneuploidy in fresh tissue and paraffin-embedded tissues was 72% and 32%, respectively. There was a 52% agreement in analysis of DNA ploidy between fresh and paraffin-embedded tissues. Most of the discrepancies resulted from loss of aneuploid peaks on the histograms of paraffin-embedded tissue. Mean S-phase fraction was slightly higher in a paraffin-embedded tissue than that in the fresh tissue; 19.2 9.1% versus 16.1 8.8% and there was no significant correlation between the S-phase fractions. In statistical analysis, the histologic and nuclear grades were not correlated with ploidy or mean S-phase fraction. Therefore it is strongly recommended to use the fresh tissue in flow cytometric DNA content analysis of breast cancer.
Aneuploidy ; Breast Neoplasms* ; Breast* ; DNA* ; Flow Cytometry ; Ploidies

Aneuploidy ; Humans ; In Situ Hybridization, Fluorescence ; methods ; Male ; Spermatozoa ; ultrastructure