• 한국수정란이식학회지
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• 제22권1호
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• pp.47-51
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• 2007

더러브렛종 암말의 번식 능력을 향상시키기 위해 호르몬 투여 및 인공 조명에 의한 인위적으로 발정 조절을 실시한 결과는 다음과 같다. 발정 주기에 있는 암말의 $PGF_2{\alpha}$ 또는 altrenogst투여에 의한 발정 발현율은 100%이었으며, 수태율은 각각 95.2% 및 71.4%였다. 전년도 공태마에 대하여 altrenogest단독 또는 altrenogest과 estradiol 병행 투여시 3월 이내 100% 발정이 발현되었으며, 발정 발현일은 altrenogest 투여 종료 후 단독 투여군이 4.3일, estradiol 병행 투여군이 3.7일이었고, 배란일은 발정 발견 후 각각 2.7일과 2.5일이었고, 처리군간의 유의적인 차이는 없었다. 그리고 수태율은 altrenogest 단독 투여군이 80.0%를 나타내었다. 인공 조명에 의한 발정 발현율은 92.9%였고 수태율은 76.9%였다. 이상의 결과로 보아 번식 계절에 있는 암말에 대한 발정 동기화는 수태율을 높일 수 있는 수단으로 활용될 수 있고, 전년도 비임신으로 공태중인 암말에 altrenogest 투여는 경주마의 조기 번식 및 수태율 향상에 기여할 수 있을 것으로 사료 된다.

• Asian-Australasian Journal of Animal Sciences
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• 제26권10호
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• pp.1399-1405
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• 2013

The present study focused on establishing the effects of interferon-gamma (IFN-${\gamma}$) on interleukin-18 (IL-18) expression patterns and pregnancy outcomes in pregnant rats. Pregnant rats at the post-implantation stage were randomized into control, low IFN-${\gamma}$ (L-IFN-${\gamma}$) and high IFN-${\gamma}$ groups (H-IFN-${\gamma}$) that received normal saline, 100 IU/g of IFN-${\gamma}$ and 500 IU/g of IFN-${\gamma}$ vaginal muscular injection, respectively. The effects of IFN-${\gamma}$ on IL-18 expression and pregnancy outcomes were assessed systematically using several methods, including immunohistochemistry streptavidin-perosidase (SP), image pattern analysis, enzyme-linked immune-sorbent assay (ELISA), whole blood count (WBC) count, microscopy and visual observation. IL-18 was detected in the uteri of all pregnant rats, and mainly distributed in the endometrium, decidual cells, vascular endothelium and myometrium. Immunohistochemistry and image pattern analyses revealed significantly lower IL-18 expression in the H-IFN-${\gamma}$ group compared to the L-IFN-${\gamma}$ and control groups (p<0.01), indicating that high doses of IFN-${\gamma}$ induce downregulation of IL-18 in the uterus of pregnant rats. ELISA results disclosed that IL-18 expression in peripheral blood of the H-IFN-${\gamma}$ group was lower than that of the L-IFN-${\gamma}$ group (p<0.05), and significantly reduced compared to the control group (p<0.01). Moreover, the number of peripheral leukocytes in the H-IFN-${\gamma}$ group was significantly higher than those in the control and L-IFN-${\gamma}$ groups (p<0.01). Morphology analysis showed no evident differences between the L-IFN-${\gamma}$ and control groups. However, for the H-IFN-${\gamma}$ group, uterine mucosa bleeding, necrosis and excoriation were observed using microscopy. Visual observation revealed marroon, swelling, crassitude and no embryo in the uterus, which are obvious indicators of abortion. These results indicate that IFN-${\gamma}$ plays a regulatory role in IL-18 expression in the uterus and peripheral blood of pregnant rats at the post-implantation stage. Moreover, high levels (500 IU/g) of IFN-${\gamma}$ influence normal pregnancy at the early stages in rats by downregulating IL-18 expression in the uterus and peripheral blood and increasing the number of peripheral leukocytes, consequently triggering termination of pregnancy.

• Clinical and Experimental Reproductive Medicine
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• 제15권2호
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• pp.135-147
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• 1988

To compare the stimulation effect of the ratio in follicle stimulating hormone and luteinizing hormone in induction of multiple follicular growth, the serum $E_2$ level, the diameter of follicle, number of aspirated follicles and cleavage rate of in vitro fertilized preovulatory oocytes as well as the pregnancy rate were evaluated. Forty one patients with irreparable tubal disease were stimulated by hMG(n=24) or FSH/hMG(n=17) for the purpose of in vitro fertilization and embryo transfer. The following results were obtained. 1. Serum estradiol($E_2$) levels on the day of hCG administration were $921.0{\pm}353.3\;pg/ml$ in hMG group and $1272.9{\pm}1060.6\;pg/ml$ in FSH/hMG group. The serum $E_2$ value of hMG group was significantly lower than that of FSH/hMG group. 2. The diameter of leading follicle by ultrasonogram on the day of hCG administration were $16.2{\pm}2.0\;mm$ in hMG group and $16.2{\pm}2.6\;mm$ in FSH/hMG group. No significant difference of follicle diameter between two groups was demonstrated. 3. The number of follicles with diameter above 10 mm by sonogram on the day of hCG injection were $3.91{\pm}2.32$ in hMG group and $6.52{\pm}3.86$ in FSH/hMG group. There was significant difference of number of follicles between two groups, (p< 0.01). 4. The number of oocytes found per patient at aspiration were $2.59{\pm}1.00$ in hMG group and 3. $76{\pm}2.31$ in FSH/hMG group. There was significant difference of number of aspirated oocytes between two groups. (p< 0.05). 5. The detection rate of preovulatory oocyte at aspiration were 68.4%(39/57) in hMG group (n=22) and 77.6%(38/49) in FSH/hMG group (n=13). 6. The cleavage rate of preovulatory oocyte at 44 hours after insemination were 74.4%(29/39) in hMG group(n=22) and 81.6%(31/38) in FSH/hMG group (n=13). When only hMG was used, one pregnancy was established in 15 patients to whom 29 zygotes were transferred. And a full term normal female baby was delivered by elective cesarean section. In the FSH/hMG group, five pregnancies out of 9 transferred patients were confirmed by serum ${\beta}-hCG$. Two pregnancies were spontaneously aborted before the 6th week of pregnancy. One patient aborted her baby at the 18th week of pregnancy because of incompetent internal os of the cervix. Two patients delivered two full term babies by elective cesarean section. From the above findings, paralell with the increase in the ratio of exogenous follicle stimulating hormone to luteinizing hormone, an increase in oocyte recovery was observed as well as an improvements in pregnancy rate. It was concluded that FSH enrichment early in the follicular phase had a beneficial effect in the controlled ovarian hyperstimulation.

• Clinical and Experimental Reproductive Medicine
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• 제37권3호
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• pp.181-189
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• 2010

태반 (placenta)은 임신기간 동안에만 존재하는 태아유래 일시적인 기관으로, 모체와 태아간의 정확한 조절 기전을 통해 태아의 발달을 수행하는 중요한 기관이다. 영양막세포 (trophoblast)는 임신 초기 빠른 분열 및 분화 과정을 거쳐 태반을 형성하는 주요 세포이다. 영양막세포의 역할은 초기 배아 착상 시기부터 40주간의 임신기간 동안 태반의 형성 과정에서 다양하게 변화된다. 착상은 모체 자궁내막층으로의 포배의 가장 밖에 존재하는 분화된 영양막세포(예, 합포영양막세포)의 침윤에 의해 이루어진다. 또한, 영양막세포은 임신기간 동안 배아의 성숙과 발달에 필요한 영양분과 노폐물 등을 모체와 태아 양방향으로 적절하게 전달할 뿐 아니라 태반 내에서 침윤과 다양한 물질들의 합성 혹은 분비에 관련된 대사작용에 관여한다. 이 기간 동안 영양막세포의 기능 이상은 태아의 선천적인 기형뿐 아니라 자간전증 등을 포함하는 다양한 산과질환을 유발하기도 한다. 그러므로, 영양막세포는 태반과 태아의 발달에 결정적인 요인으로 작용한다. 본 고찰에서는 다양한 영양막세포들의 기능을 이해하기 위해 분류 및 그 종류별 특징 등을 살펴보고, 착상 단계와 태반 발달에 따른 영양막세포의 고유한 역할에 대해 알아보고 향후 활용될 수 있는 연구 분야에 대해 알아보고자 한다.

• 대한간호학회지
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• 제28권3호
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• pp.616-624
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• 1998

The purpose of this study was to contribute to maternal nursing in early postpartum stage and to neonatal nursing. Data were collected through self-report questionnaires which were constructed to include parental role stress scale, state-trait anxiety scale, and perception of the newborn scale. The subjects consisted of 100 mothers in the early postpartum stage at three hospitals in the Kyoung-In area, from November 8 to December 26, 1997. The data were analyzed by an SPSS program. The results are as follows ; 1. The mean of parental role stress of mothers in the early postpartum stage was 10.70$\pm$2.63. The means of state anxiety and trait anxiety of mothers were 36.29$\pm$8.45 and 38.53$\pm$8.36. The mean of perception of the newborn was 2.65$\pm$5.05, and 59% of mothers rated their newborn as better than the average newborn. 2. The level of parental role stress correlated to the level of state anxiety and trait anxiety. The level of state anxiety and trait anxiety were also related. The level of perception of the newborn was related to the level of state anxiety and trait anxiety. 3. Mothers who did not want the pregnancy, whose newborns were girls, and who already had one child had higher state anxiety than those who did not. Mothers who already had one child, and whose newborn had no specific signs had higher trait anxiety than those who did not. Mothers who professed a religions had a higher perception of the newborn than those who did not. The above findings indicate that the levels of parental role stress, state anxiety, trait anxiety and perception of the newborn of mothers in early postpartum stage were correlated. Therefore nursing intervention for reducing stress and anxiety, and improving perception of the newborn should be provided for mothers in early postpartum stage.

• Asian Pacific Journal of Cancer Prevention
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• 제13권11호
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• pp.5835-5838
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• 2012

Objective: Cervix cancer is one of the most common gynecological cancer types that cause cancer deaths among women. This study was planned based on a descriptive method in order to evaluate the results of PAP smear screening during pregnancy for prevention of cancer. Materials and Methods: The research involved 110 pregnant women registered at the Obstetrics and Gynecology Polyclinic of Bagcilar Training and Research Hospital and 86 non-pregnant women of the same ages as a control group. As criteria for acceptance were conditions such as not being in coitus within the last 48 hours, not using vaginal ovule, and not performing vaginal lavage. A survey consisting of 33 questions was conducted and the results were processed using Bethesda. Results: The average ages were $27.1{\pm}4.70$ for the pregnant women and $28.8{\pm}4.24$ for the control group. 60.7% of cases had previously heard of a PAP smear test, 49% were aware of why PAP smear tests were conducted, 26.4% of pregnant participants and 27.3% of non-pregnant participants had previously undergone a smear test. In this study, smear results of all cases were 95.4% sufficient. 18.2% of pregnant cases had an infection, 54.5% had reactive cellular change, and 0.9% had atypical squamous cells of undetermined significance (ASC-US). 16.3% of non-pregnant cases had an infection, 58.1% had reactive cellular change, 3.5% had atypical squamous cells of undetermined significance (ASC-US), and 1.2% had low-grade squamous intraepithelial lesions (LGSIL). Conclusion: PAP smear test is a good opportunity to identify pre-invasive lesions in early phases of pregnancy.

• 한국수정란이식학회지
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• 제15권3호
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• pp.219-230
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• 2000

This study was carried out to determine the factors on achieving good viability of embryos biopsied fur sexing, to investigate pregnancy rate following embryo transfer(ET) with sexed embryos, and to confirm the accuracy for the calves bort following ET with sexed embryos by polymerase chain reaction(PCR). To investigate viability of Hanwoo embryos after biopsy for sexing, fresh and frozen/thawed embryos were biopsied according to different developmental day of blastocysts, different stage of blastocysts, and different biopsy grade and the embryos themselves were incubated for 2 hours in TCM199 after microsection to be evaluated morphologically for recovery as blastocyst. The results obtained were as follows : 1. The rate of oocytes cleaved in vitro and the rate of blastocyst of the cleaved oocytes were 52.5% and 21.6%, respectively. The rate of blastocyst on day 8 was 11.2%, denoting the highest rate during whole culture period posterior to in vitro fertilization(IVF) 2. After biopsy for sexing, the viability rate of blastocyst on day 7, 8 and 9 was 75.0%, 88.4%, and 100.0%, respectively and the viability of early, mid, and expanded blastocyst after biopsy was 75.0%, 88.9%, and 91.1%, respectively The viability rate of fresh and frozen/thawed embryos was 89.9%, 71.4%, respectively. And the viability of expanded, hatching, and hatched blastocyst of frozen/thawed embryos was : 75.0%, 75.0%, and 50.0%, respectively. The viability of embryos according to biopsy grade of 10∼20%, 21∼30%, and 31∼40% was 85.7%, 91.5%, and 71.4%, respectively. 3. Pregnancy rate after transfer with biopsied embryo between flesh and frozen/thawed embryos was 22.6% and 20.0%, respectively. 4. In comparison between sex by PCR method and sex of calves born after embryo transfer, the accuracy of sex deterimination was 92.3% (12/13).

• Asian-Australasian Journal of Animal Sciences
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• 제22권11호
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• pp.1574-1580
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• 2009

To evaluate the effect of different housing systems on sow behavior, 80 gilts were randomly allocated at puberty to four treatments: i) sow stall in gestation followed by farrowing crate (SC), ii) group housing with individual feeding in gestation followed by farrowing crate (GC), iii) ESF (Electronic Sow Feeding) system in gestation followed by farrowing crate (EC), and iv) ESF system followed by group farrowing pen (EG). Behavioral observations were carried out on a total of 16 animals per treatment at the following stages: first day of allocation to housing treatment, day of service, 80 days after service, 109 days after service on entry to farrowing accommodation, 24 h before farrowing, day of farrowing, 14, 27 and 28 days after farrowing, at weaning. On each occasion, individual animals were observed for a 24 period with one minute time sampling. There were significant differences (p<0.001) between stages of the reproductive cycle for all the behavior patterns in all treatments. On the first day in experimental housing treatments, sows spent more time rooting and dog-sitting. Activity and investigatory behavior decreased as pregnancy progressed. An activity peak was apparent just before farrowing, followed by a high level of inactivity on the day of farrowing. Time spent active, eating and drinking increased as lactation progressed, and greatest activity and locomotion was seen immediately following weaning. There were significant differences between housing treatments (p<0.01) for standing, moving, eating, drinking, dog-sitting and lying. During pregnancy SC sows spent more time standing, rooting, drinking and dog sitting, while EC sows spent less time rooting and drinking and more time lying. During lactation, GC sows spent more time standing, moving and eating, less time dog sitting and lateral lying. Nursing frequency was reduced in GC sows (p<0.001). The maternal and piglet behaviors were influenced strongly by environment during lactation. However, it was also shown that previous housing history can influence the maternal behavior in the pre-farrowing stage and during early lactation.

• 한국콘텐츠학회논문지
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• 제18권10호
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• pp.657-668
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• 2018

이 연구의 목적은 비혼모가 되기 전 삶과 출산 전 양육비혼모 삶의 경험에 대하여 구조와 본질을 심층적으로 알아보고 이해하기 위함이다. 비혼모 10명을 대상으로 심층개별면담을 통하여 자료를 수집한 후, Colazzi의 현상학적 연구방법을 이용한 질적 연구를 하였다. 연구결과 '상처로 얼룩진 시절' 주제모음은 비혼모가 되기 전 어린 시절 단절된 가족관계와 가족기능의 해체로 인하여 부모에게 버림받거나 보호받지 못한 삶의 경험으로 나타났다. '위태로운 일상' 주제모음은 비혼모들의 이른 학업중단과 가출은 위태로운 생활로 이어졌다. 또한 무분별한 성문화와 낮은 성인식, 태도는 성을 일찍 경험하는 것으로 나타났다. '당혹스러운 임신사실' 주제모음은 비혼부의 피임 거부와 비혼모의 부정확한 피임지식과 피임방법 사용은 원치 않은 임신으로 나타났다. 마지막 주제모음 '힘들게 결정한 출산'은 임신사실을 너무 늦게 인지하여 어쩔 수 없는 출산을 선택하기도 하지만 생명의 소중함을 느껴 낙태를 거부하고 출산을 결정하는 것으로 나타났다. 이상의 연구결과를 바탕으로 비혼모를 대상으로 성교육을 강화 할 뿐 아니라 남성을 대상으로 정확한 피임지식과 방법을 제공하는 성교육 실시의 필요성을 논의하였다.

• 한국방사선학회논문지
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• 제14권6호
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• pp.791-800
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• 2020

태아 심장의 기능을 평가하기 위해 초음파 검사가 널리 이용되고 있으나 주관적이라는 검사의 특성으로 인해 검사자마다 측정 방식에 차이가 있으며 특히 심근 성능 지수는 현재까지 기준치가 없는 실정이다. 이에 본 연구에서는 정상 태아의 펄스 도플러 파형을 분석하여 자동 측정 프로그램을 개발하여 객관적인 측정을 하고자 하였다. 2019년 4월부터 2020년 2월까지 부산에 위치한 W병원에 내원한 산모 133명을 대상으로 태아 심장 초음파검사를 시행하였으며 좌심실의 펄스 도플러 영상을 획득 후 각 심근 성능 지수를 측정하였다. 본 연구에서 구현한 자동 측정 프로그램을 이용한 임신 초기, 중기, 말기의 심장 성능 지수와 기존의 측정 방식을 이용한 심장 성능 지수를 비교한 결과, 두 수치에는 차이가 있었으나 같은 경향성을 보였다.