• Journal of Genetic Medicine
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• 제2권1호
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• pp.7-10
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• 1998

The present report describes a case that showed a normal fetal karyotype in an antenatal genetic study but an abnormal placental karyotype of 46,XX,r (15) on postnatal examination. The pregnancy was complicated by fetal nuchal translucency in the first trimester and intrauterine growth restriction in the second and third trimesters. A 1780 gm female baby was born after 40 weeks of gestation, but died of respiratory distress and sepsis on the 10th day of life. Our case was unique in that the placental chromosomal aberration was a structural abnormality instead of a numerical aberration that is seen in most reported cases of confined placental mosaicism.

• Asian-Australasian Journal of Animal Sciences
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• 제22권11호
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• pp.1495-1503
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• 2009

This experiment was conducted to determine the effect of dietary supplementation with BCAA (branched-chain amino acids: leucine, isoleucine and valine) on improving the growth of rats in a malnutritional IUGR (Intrauterine Growth Retardation) model, which was established by feeding restriction. In the experimental treatment, rats were fed purified diets supplemented with BCAA (mixed) during the whole gestation period, while arginine and alanine supplementation were set as the positive and negative control group, respectively. The results showed that, compared to the effect of alanine, BCAA reversed IUGR by increasing the fetus weights by 18.4% and placental weights by 18.0% while fetal numbers were statistically increased. Analysis of gene and protein expression revealed that BCAA treatment increased embryonic liver IGF-I expression; the uterus expressed higher levels of estrogen receptor-$\alpha$ (ER-$\alpha$) and progesterone receptor (PR), and the placenta expressed higher levels of IGF-II. Amino acid analysis of dam plasma revealed that BCAA supplementation effectively enhanced the plasma BCAA levels caused by the feed restriction. BCAA also enhanced the embryonic liver gluconeogenesis by augmenting the expression of two key enzymes, namely fructose-1,6-biphosphatase (FBP) and phosphoenolpyruvate carboxykinase (PEPCK). In conclusion, supplementation of BCAA increased litter size, embryonic weight and litter embryonic weight by improving the dam uterus and placental functions as well as increasing gluconeogenesis in the embryonic liver, which further provided energy to enhance the embryonic growth.

• Journal of Genetic Medicine
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• 제17권2호
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• pp.83-88
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• 2020

Silver-Russell syndrome (SRS) is a rare genetic disorder characterized by intrauterine growth restriction, poor postnatal growth, relative macrocephaly, a triangular face, body asymmetry, and feeding difficulties. It is primarily diagnosed according to a clinical scoring system; however, the clinical diagnosis is confirmed with molecular testing, and the disease is stratified into the specific molecular subtypes. SRS is a genetically heterogeneous condition. The major molecular changes are hypomethylation of imprinting control region 1 in 11p15.5 and maternal uniparental disomy of chromosome 7 (UPD(7)mat). Therefore, first-line molecular testing should include methylation-specific approaches for these regions. Here, we report an extremely low birth weight (ELBW) infant with intrauterine growth retardation, postnatal growth retardation, and dysmorphic facial appearance-characteristics consistent with the clinical diagnostic criteria of SRS. Methylation-specific molecular genetic analysis revealed UPD(7)mat, while the loss of heterozygosity was not detected on chromosomal microarray analysis. We present a case of SRS with suspected uniparental heterodisomy of chromosome 7 in an ELBW infant.

• 한국방사선학회논문지
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• 제15권5호
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• pp.649-656
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• 2021

본 연구는 태아의 자궁 내 성장제한을 평가하는 변수로 소뇌횡직경과 복부둘레비(TCD/AC ratio)의 적절성을 평가하고자 하였다. 2019년 4월부터 2021년 3월까지 부산소재 I 병원에서 정기검진으로 초음파를 실시한 784명의 임산부를 대상으로 진행하였으며 소뇌횡직경과 복부둘레 측정값을 통해 후향적으로 분석하였다. 단순회귀분석에서 임신주수에 소뇌횡직경은 97.2%, 복부둘레는 97.5%의 영향력을 보였으며(p<0.001) 정상태아의 TCD/AC ratio는 임신주수에 상관없이 13.2로 결정되었다. 또한 빈도분석을 통해 임신주수 그룹별 TCD/AC ratio의 백분위수를 산출하였으며 자궁 내 성장제한 예측의 95 백분위수는 14.2로 나타났다. 결과적으로 TCD/AC ratio는 태아의 정상적인 성장을 평가하고 IUGR을 예측하는 유용한 변수로 활용될 수 있을 것으로 사료된다.

• Clinical and Experimental Pediatrics
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• 제61권4호
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• pp.114-120
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• 2018

Purpose: Routine screening for toxoplasmosis, rubella, cytomegalovirus (CMV), and herpes simplex virus (TORCH) in intrauterine growth restriction (IUGR) and small for gestational age (SGA) neonates has become a common practice. However, the incidence of TORCH varies across countries, and the cost of TORCH testing may be disadvantageous compared to disease-specific screening. To evaluate the efficacy of TORCH screening, the medical charts of IUGR or SGA neonates born in a single institution in Bucheon, Korea from 2011 to 2015 were reviewed. Methods: The clinical data of the 126 IUGR or SGA neonates were gathered, including gestational age, Apgar scores, neonatal sonographic findings, chromosome study, morbidities, developmental follow-up, and growth catch-up. Maternal factors including underlying maternal disease and fetal sonography were collected, and placental findings were recorded when available. TORCH screening was done using serum IgM, CMV urine culture, quantification of CMV DNA with real-time polymerase chain reaction, and rapid plasma reagin qualitative test for syphilis. Tests were repeated only for those with positive results. Results: Of the 119 TORCH screenings, only one was positive for toxoplasmosis IgM. This result was deemed false positive due to negative IgM on repeated testing and the absence of clinical symptoms. Conclusion: Considering the incidence and risk of TORCH in Korea, the financial burden of TORCH screening, and the single positive TORCH finding in our study, we suggest disease-specific screening based on maternal history and the clinical symptoms of the neonate. Regarding CMV, which may present asymptomatically, universal screening may be appropriate upon cost-benefit analysis.

• 한국통계학회:학술대회논문집
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• 한국통계학회 2003년도 춘계 학술발표회 논문집
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• pp.171-176
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• 2003

방대한 양의 데이터에서 의사결정에 필요한 정보를 발견하는 일련의 과정을 데이터 마이닝 (data mining)이라고 하는데, 본 연구에서는 생물정보학 (bioinofmatics)의 한분야로서 의학분야의 통계적 의사결정 시스템을 제공하는 의사결정나무 (decision tree) 알고리즘 중 QUEST를 S-PLUS로 구현하고(이하 S-QUEST) 발육제한(Intrauterine Growth Restriction; IUGR) 데이터를 분석하였다.

• 수면정신생리
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• 제9권2호
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• pp.86-95
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• 2002

Various sleep-related problems are common in pregnant women. Sleep disorders may result in intrauterine growth restriction as well as harm to pregnant women. Pharmacotherapy of sleep disorders in pregnancy require cautious judgement. All physicians managing sleep-related problems of pregnant women in clinical practice need to understand sleep-related problems and their management in pregnancy. Therefore, I have reviewed the literature on normal sleep, sleep disorders and their management in pregnancy.

• 대한한방부인과학회지
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• 제23권4호
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• pp.164-175
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• 2010

Purpose: The purpose of this study is to report the effect of Traditional Korean Medicine therapy for patient in the state of post stillbirth by oligohydramnios Methods: The patient in this case was 33-year-old female who was pregnant by artificial insemination in 2010. Intrauterine growth restriction was discovered at 17 weeks after gestation. And oligohydramnios was found at 20 weeks after gestation. Amnioinfusion was done three times, amniotic fluid infection occurred in the process of amnioinfusion and she had a stillbirth. After stillbirth she came to our clinic with symptoms of abdominal tenderness, distention, mammalgia. The patient was treated by traditional herbal medicine therapy such as Saenghwa-tang(生化湯), Gungguijohyeol-eum(芎歸調血飮), Silso-san(失笑散) and Sasang constitution medicine(荊防地黃湯, 荊防敗毒散, 荊防瀉白散). The progresses of symptoms were evaluated by visual analogue scale. Results: After Traditional Korean Medicine therapy, the patient's symptoms caused by stillbirth was improved. Conclusion: This case study shows that the postpartum treatment in Traditional Korean Medicine therapy and Sasang constitution medicine is effective for the patient in the state of post stillbirth.

• Animal Bioscience
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• 제35권7호
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• pp.989-998
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• 2022

Objective: This study investigated the effects of intrauterine growth restriction (IUGR) during late pregnancy on the cell growth, proliferation, and differentiation in ovine fetal thymuses. Methods: Eighteen time-mated Mongolian ewes with singleton fetuses were allocated to three groups at d 90 of pregnancy: restricted group 1 (RG1, 0.18 MJ ME/body weight [BW]^0.75/d, n = 6), restricted group 2 (RG2, 0.33 MJ ME/BW^0.75/d, n = 6) and control group (CG, ad libitum, 0.67 MJ ME/BW^0.75/d, n = 6). Fetuses were recovered at slaughter on d 140. Results: The G0/G1 phase cell number in fetal thymus of the RG1 group was increased but the proliferation index and the expression of proliferating cell nuclear antigen (PCNA) were reduced compared with the CG group (p<0.05). Fetuses in the RG1 group exhibited decreased growth hormone receptor (GHR), insulin-like growth factor 2 receptor (IGF-2R), and their mRNA expressions (p<0.05). For the RG2 fetuses, there were no differences in the proliferation index and PCNA expression (p>0.05), but growth hormone (GH) and the mRNA expression of GHR were lower than those of the CG group (p<0.05). The thymic mRNA expressions of cyclin-dependent protein kinases (CDKs including CDK1, CDK2, and CDK4), CCNE, E2-factors (E2F1, E2F2, and E2F5) were reduced in the RG1 and RG2 groups (p<0.05), and decreased mRNA expressions of E2F4, CCNA, CCNB, and CCND were occurred in the RG1 fetuses (p<0.05). The decreased E-cadherin (E-cad) as a marker for epithelial-mesenchymal transition (EMT) was found in the RG1 and RG2 groups (p<0.05), but the OB-cadherin which is a marker for activated fibroblasts was increased in fetal thymus of the RG1 group (p<0.05). Conclusion: These results indicate that weakened GH/IGF signaling system repressed the cell cycle progression in G0/G1 phase in IUGR fetal thymus, but the switch from reduced E-cad to increased OB-cadherin suggests that transdifferentiation process of EMT associated with fibrogenesis was strengthened. The impaired cell growth, retarded proliferation and modified differentiation were responsible for impaired maturation of IUGR fetal thymus.

• Neonatal Medicine
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• 제18권1호
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• pp.117-123
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• 2011

목적: 선천성 문맥 전신성 단락은 매우 희귀한 질환으로, 대부분은 증상이 없어 우연히 시행된 영상 검사를 통해서 발견되고, 심각한 합병증을 일으킬 수 있어 진단과 치료에 신중을 기해야 하는 질환이나, 재태 상태 또는 신생아기에 단락의 진단을 위한 표준화된 방법이 제시되고 있지 않은 실정이다. 이에 선천성 간내 문맥 전신성 단락이 신생아기에 복부 초음파로 확인된 8예의 임상 양상과 치료 및 예후에 대해 알아보았다. 방법: 2006년 1월부터 2010년 12월까지 관동대학교 의과대학 제일병원에서 출생한 환아 36,572명 중 산전에 단락이 진단된 신생아 6예와, 출생 후 간내 문맥 전신성 단락이 진단된 신생아 2예를 대상으로 의무 기록 정보를 후향적으로 분석하였다. 결과: 선천성 간내 문맥 전신성 단락은 해당 기간의 출생아중 8명에서 발생하였으며, 이 중 6예는 산전검사에서 진단되었으며, 2예는 출생 후 복부 초음파 검사를 시행하여 진단되었다. 산전의 진단된 6예 중 3예는 자궁 내 성장 지연을 보였으며, 2예는 미숙아였다. 1예에서 암모니아의 상승을 보여, 코일 색전술을 시행하였으며, 4예에서 생후 11개월 내에 단락의 자연 소실을 확인하였다. 출생 후 단락이 확인된 경우는 2예로 모두 자궁 내성장 지연을 보였으며, 단락은 생후 4개월과 6개월에 자연 소실된 것을 확인하였다. 고찰: 선천성 간내 문맥 전신성 단락은 생후 2년 내에 자연 소실되는 것으로 알려져 있으나, 소실 시까지 경과 관찰을 요한다. 단락은 4,500명의 출생아 중 1명에서 발생하였으며, 자궁 내 성장지연을 보인 5예를 포함한 8예에서 경험하였다. 뚜렷한 원인이 동반되지 않은 자궁 내 성장 지연을 보이는 경우, 반드시 선천성 문맥 전신성 단락을 의심하여야 하며, 산전 초음파를 시행하여 검증하여야 한다. 산전 초음파 결과 단락이 의심될 경우, 태아의 상태를 지속적으로 관찰해야 하며, 생후에도 단락의 자연 소실까지 주기적인 감시가 필요하다.