Publications by authors named "Yan-mei Si"

A male newborn presented with hypospadias and differential testicular volumes. Short femur length was detected four times during pregnancy, at 23, 31, 32 and 33 weeks, by ultrasonographic examination. Chromosome analysis was performed on peripheral lymphocytes obtained from the infant and his parents.

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This study aimed to characterize the immunopotentiating effects and immune receptors for Coriolus versicolor mushroom polysaccharides (CVP), a Chinese medicinal fungus that exerts anti-tumor activities by enhancing host immunity. Proliferation assays were used to determine whether CVP could activate splenocytes. Flow cytometry analysis and IgM and IgG detection were used to characterize CVP-binding cells.

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The present meta-analysis aimed to investigate the association between insulin gene variable number of tandem repeats (INS VNTR) and polycystic ovary syndrome (PCOS). Systematic searches of electronic databases, reference lists of included articles, and the abstracts presented at related scientific societies meetings were performed. Statistical analyses were conducted using software Stata 11.

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Background: Almost all reported fluorescence in situ hybridization (FISH) kits for prenatal diagnosis use probes from foreign (non-Chinese) countries. The aim of this study was to analyze the reliability of domestic (Chinese) FISH probe sets to detect aneuploidies of chromosomes 13, 18, 21, X, and Y related to prenatal diagnosis in 4210 cases.

Methods: Cytogenetic karyotyping was carried out as a standard prenatal diagnostic test, and amniotic fluid cell interphase FISH analysis was performed using two sets of probes (centromeric probes for chromosomes 18, X, and Y, and locus-specific probes for chromosomes 13 and 21) provided by GP Medical Technologies, Beijing, China.

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Article Synopsis
  • * DNA samples were collected from unrelated individuals and analyzed using advanced techniques, revealing 8 alleles and 19 genotypes with high heterozygosity.
  • * Our findings suggest that the vWA locus is reliable for forensic investigations, supported by positive results from various biological samples like amniotic fluid and blood stains.
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Cholecystokinin modulates the release of dopamine and dopamine-related behaviours in the mesolimbic pathway, where cholecystokinin and dopamine coexist in dopaminergic neurones. Because cholecystokinin and its receptors (A and B) have a functional interaction with dopaminergic neurotransmission, alterations in them may constitute a predisposition for Parkinson's disease. We performed a case-control study to investigate the association between the cholecystokinin system and Parkinson's disease using genetic markers for three genes: cholecystokinin and its two receptors (A and B).

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Article Synopsis
  • The study analyzed allele frequencies of six short tandem repeat (STR) loci in the Han population of Henan province using DNA from blood samples, amplified through PCR, and examined via PAGE electrophoresis.
  • Results indicated three alleles for F13A1, with F13A1 * 7 being the most common (45.2% frequency), and varying frequencies found for other loci such as F13B and D8S1179.
  • High heterozygosities and adherence to Hardy-Weinberg equilibrium among the six loci suggest they are effective genetic markers for individual identification and paternity testing in forensic applications.
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alpha1-Antichymotrypsin (ACT) and ubiquitin carboxy-terminal hydrolase L1 (UCH-L1) have been suggested as susceptibility factors for Parkinson's disease (PD). We replicated these findings in a Chinese case-control sample consisting of 160 PD cases and 160 carefully matched control subjects. Genotypes were determined using polymerase chain reaction and BstN1 or Rsa1 restriction enzyme assay.

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To increase the efficiency of in vitro transformation of human lymphocytes by Epstein-Barr virus (EBV) and establish permanent lymphoblastoid cell lines from patients with abnormal chromosome karyotype, B lymphoid cells were prepared from cryopreserved heparinized blood samples. The lymphoid cell pellet was resuspended with 0.5 ml medium of RPMI with 20% fetal calf serum(FCS), and added 2 ml virus-containing superatant of the EB virus-producing cell lines by filtrated, and mixed.

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