Background: Down syndrome is a developmental disorder caused by an extra copy of chromosome 21, is a condition in which extra genetic material causes delays in the way a child develops, both mentally and physically. It affects about 1 in every 700 babies. The fetus having high risk for Down syndrome (OS) can be detected early by ultrasound. Objectives: The aim of the study is to find out some ultrasound markers that relate to OS fetus. Subjects and method: A descriptive study was carried out on 612 pregnant women with fetus \ufffd?12 weeks by ultrasound to detect abnormal markers in fetus. The fetus were diagnosed Down syndrome by analysis chromosome from amniocyte and monitor up to the neonate. Then, finding out association between OS fetus and ultrasound markers. Results: Among 612 pregnant women,36/12 pregnant women had abnormal imaging in fetus, 11/12 pregnant women had OS fetus. There were 12 pregnant women detected OS fetus. 6/12 OS fetus associated with the maker of nuchal skin fold (cut off 2: 3mm at the first trimester and 2: 6 mm at the second trimester): Detection rate (DR) was 50%; false positive rate (FOR): 0,83%. 3/12 OS fetus associated with the marker of duodenal atresia. DR was 25%; FOR: 0%. Conclusions: The two common markers associated with OS fetus: \r\n', u'the first marker was nuchal skin fold (with cut off 2: 3mm at the first trimester and > 6 mm at the second trimester) and the second marker was duodenal atresia. \r\n', u' \r\n', u'
Down Syndrome ; Fetus/ anatomy & ; histology ; abnormalities ; physiopathology ; ultrasonography

Background: Acute lower respiratory tract infection, mainly pneumonia, were the main reasons cause death for children under 5 years old. Objectives: Determine the isolated rate of bacteria inpatients under 5 years old with acute lower respiratory tract infection in Ha Noi and antibiotic resistance of pneumococcal isolated form patients. Subjects and method: Patients under 5 years old with acute lower respiratory tract infection in National hospital of pediatrics and Bach Mai hospital from 01/2002. Using quantitative culturedand PCR method. Results: Out of total 164 patients with lower respiratory tract infection, there were 91 diagnosed pneumonia by chest X-ray, 73 cases of acute bronchitis. 73,6% of the pneumococcal isolated were penicillin resistance (gPRSP) with different genes such as pbp 1a+2x+ab. Most of the S.pneumoniae strains were serotype 19F or 23F. There were no statistic differences by comparison charactersistics of weight, vessel, subclinical symptoms such as: dissolved oxygen level (S\xac\xacp\xac\xac\xac\xacO\xac2\xac), the amount of leucocyte in blood. However, temperature of pneumonia patients was higher than bronchitis patients, breathing of pneumonia patients was also faster than bronchitis patients. Isolated bacteria with amount \ufffd?106 cfu/ml was H.influenzae, S.pneumoniae and Moraxell catarrhalis in pneumonia group, bronchitis group was 28,8% and control group was 17,1%. Conclusion: Penicillin, erythoromycin and co-trimoxazole resistance rate of S.pneumoniaein patients with acute lower respiratory tract infection was high. Quantitative cultured method has prognostic value in diagnosis pneumonia.
Genes ; MDR/ drug effects ; immunology ; Streptococcus pneumoniae/ growth & ; development ; Anti-Bacterial Agents

The aim of this study is to delineate ‘admixed hybrid’ and ‘introgressive’ Fasciola genotypes present in the Fasciola population in Vietnam. Adult liver flukes collected from ruminants in 18 Provinces were morphologically sorted out by naked eyes for small (S), medium (M) and large (L) body shapes; and human samples (n=14) from patients. Nuclear ribosomal (rDNA) ITS1 and ITS2, and mitochondrial (mtDNA) nad1 markers were used for determination of their genetic status. Total 4,725 worm samples of ruminants were tentatively classified by their size: 6% (n=284) small (S)-, 13% (n=614) medium (M)-, and 81% (n=3,827) large (L)-forms. All the representative (n=120, as 40 each group) and 14 human specimens, possessed maternal mtDNA of only F. gigantica and none of F. hepatica. Paternally, all (100%) of the L-(n=40) and 77.5% (n=31) of the M-flukes had single F. gigantica rDNA indicating ‘pure’ F. gigantica. A majority (90%, n=36) of the S- and 15% (n=6) of the M-worms had single F. hepatica rDNA, indicating their introgressive; the rest (10%, n=4) of the S- and 7.5% (n=3) of the M-flukes had mixture of both F. gigantica and F. hepatica rDNAs, confirming their admixed hybrid genetic status. Fourteen human samples revealed 9 (64%) of pure F. gigantica, 3 (22%) of introgressive and 2 (14%) of admixed hybrid Fasciola spp. By the present study, it was confirmed that the small worms, which are morphologically identical with F. hepatica, are admixed and/or introgressive hybrids of Fasciola spp., and able to be the pathogens of human fascioliasis.
Adult ; DNA, Mitochondrial ; DNA, Ribosomal ; Fasciola hepatica ; Fasciola ; Fascioliasis ; Genotype ; Humans ; Liver ; Ranunculaceae ; Ruminants ; Vietnam