[Prenatal diagnosis of Thailand deletion of α-thalassemia 1 families]

OBJECTIVE

To conduct analysis and prenatal diagnosis on 11 couples carrying Thailand deletion (--(THΑI)) α-thalassemia 1, so as to provide information for clinical genetic counseling on α-thalassemia 1.

METHODS

Altogether 11 Thailand deletion (--(THΑI)) α-thalassemia 1 families were collected from Fujian Maternal and Children Health Hospital from May 2009 to September 2015. Gap-polymerase chain reaction (gap-PCR) and reverse dot blot (RDB) technology were used to detect the thalassemia mutations in the couples and fetuses.

RESULTS

In one family, Thailand deletion α-thalassemia 1 was detected in both the pregnant woman and her husband. In 10 families, Thailand deletion α-thalassemia 1 was detected in either the pregnant women or the husband, while the spouses had α-thalassemia heterozygote (1 combined with β thalassemia heterozygote). Thailand deletion α-thalassemia 1 family members all had lower mean corpuscular volume (MCV) and mean corpuscular hemoglobin (MCH). In prenatal diagnosis of the 12 fetuses, 4 fetuses were found with hemoglobin(Hb) Bart's hydrops fetalis syndrome, 5 were with α-thalassemia heterozygote, and 3 were normal.

CONCLUSIONS

For couples with positive hematological phenotype but normal results in routine genetic examination of α-thalassemia, attention should be paid especially for with a history of having babies of hydrops fetalis syndrome or hemoglobin H disease. It is necessary to consider the possibility of the rare Thailand deletion (--(THΑI)) α-thalassemia 1. Prenatal diagnosis for high-risk families plays an important role.

[Simultaneous determination of 11 organic acids in fruit juice by ion exclusion chromatography]

A method for the quantitative determination of 11 organic acids (oxalic acid, citric acid, tartaric acid, malic acid, ascorbic acid, lactic acid, succinic acid, formic acid, acetic acid, glutaric acid and fumaric acid) in fruit juice was developed successfully. It was based on an ion exclusion chromatographic separation under the conditions of isocratic elution with 17 mmol/L sulphuric acid solution with the ICE-ION-300 ion exclusion column, and the UV detection at 210 nm. The precision of the method was investigated and the relative standard deviations were from 1.5% to 9.8% (n = 10).

[Pathological analysis of adenomatoid tumours in the female genital tract]

A review of 18 cases of adenomatoid tumours in the female genital tract was carried out. There are 14 cases in uterus, 3 in fallopian tubes and 1 in ovary. The incidence of adenomatoid tumour in uterus, fallopian tubes and ovary is 3.1%, 0.5% and 0.2% respectively. The result showed that the uterus adenomatoid tumour is more common than fallopian tube and ovary (P < 0.01). All of the 18 cases are found in internal genital tract. The incidence of adenomatoid tumors is increased with the size of surfaces serosa or germinal epithelium in different part. Majority adenomatoid tumour are closing to the folding region of coelomic epithelium or midline of uterus. These findings suggest that adenomatoid tumour may be originated from mesothelia.