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Kim Seo-Yeon,Oh Soo-young,Sung Ji-Hee,Choi Suk-Joo,Roh Cheong-Rae,Lee Seung Mi,Jun Jong Kwan,Lee Mi-Young,이준호,Kim Soo Hyun,Cha Dong Hyun,Han You Jung,Kim Min Hyoung,Cho Geum Joon,Kwon Han-Sung,Kim Byo 대한의학회 2021 Journal of Korean medical science Vol.36 No.44
Background: People are generally considered overweight and obese if their body mass index (BMI) is above 25 kg/m2 and 30.0 kg/m2 , respectively. The World Health Organization proposed stricter criteria for Asians (≥ 23 kg/m2 : overweight, ≥ 25 kg/m2 : obese). We aimed to verify whether this criteria could predict adverse pregnancy outcomes in Korean women. Methods: We included 7,547 Korean women from 12 institutions enrolled between June 2016 and October 2018. Women with no pre-pregnancy BMI data, not Korean, or lost to followup were excluded, leaving 6,331. The subjects were categorized into underweight, normal, overweight, class I obesity, and class II/III obesity based on a pre-pregnancy BMI of < 18.5, 18.5–22.9, 23.0–24.9, 25.0–29.9, and ≥ 30.0 kg/m2 , respectively. Results: Overall, 13.4%, 63.0%, 11.8%, 9.1%, and 2.6% of women were underweight, normal, and overweight and had class I obesity and class II/III obesity, respectively. In the multivariable analysis adjusted for maternal age, a higher BMI significantly increased the risk of preeclampsia, gestational diabetes, preterm delivery caused by maternal-fetal indications, cesarean section, large for gestational age, and neonatal intensive care unit admission. Conclusion: Adverse pregnancy outcomes started to increase in those with a pre-pregnancy BMI ≥ 23.0 kg/m2 after adjusting for maternal age. The modified obesity criteria could help predict adverse pregnancy outcomes in Koreans.
Kim, Kyoung-Rae,Kim, Jung-Han,Park, Hyoung-Kook,Oh, Chang-Hwan Korean Chemical Society 1993 Bulletin of the Korean Chemical Society Vol.14 No.2
A dual capillary column system is described for the simultaneous analysis of a given sample and measurement of retention index (RI) and area ratio (AR) values of each peak on two capillary columns of different polarity, DB-5 & DB-1701 from a single injection. Both capillary columns were connected to either a splitless injector or an on-column injector via a deactivated fused-silica capillary tubing of 1 m length and a 'Y' splitter. Both injection modes allowed to measure RI and AR values with high reproducibility (<0.01% RSD) and high accuracy (<10% RE), respectively with the exception that the trace and high boiling solutes required the on-column mode for the accurate quantification and AR comparison. When the dual capillary column system in on-column injection mode was applied to the blind samples containing organic acids, each acid was positively indentified by the combined computer RI library search-AR comparison.
Kim, Kyong Mahn,Song, Jong Hwan,Kim, Jae Nyoung,Kim, Hyoung Rae,Chung, Kun Hoe,Ryu, Eung K 한국농화학회 1993 Applied Biological Chemistry (Appl Biol Chem) Vol.36 No.3
A novel series of 5-benzofuranyl-substituted cyclohexane-1,3-dione oxime derivatives were synthesized to optimize the herbicidal activity, and found to possess good selectivity between grass crops (벼, 밀, 수수 등) and grass weeds (피, 바랭이, 미국개기장 등) at low rate. The structure-activity relationships analyses were carried out to understand the drug-receptor interaction. The weed control and crop selectivity of a specific example, EK-2612, are presented in detail (physical properties, herbicidal activity, vertical migration, acetylcoenzyme carboxylase inhibitory activity).