• Asian Pacific Journal of Cancer Prevention
• /
• 제16권4호
• /
• pp.1343-1348
• /
• 2015

Human UHRF1 (ubiquitin-like PHD and RING finger domain-containing 1) has been reported to be over-expressed in many cancers, but its role in ovarian cancer remains elusive. Here, we determined whether knockdown of UHRF1 by lentivirus-mediated shRNA could inhibit ovarian cancer cell growth. Lentivirus-mediated short hairpin RNAs (lv-shRNAs-UHRF1) were designed to trigger the gene silencing RNA interference (RNAi) pathway. The efficiency of lentivirus-mediated shRNA infection into HO-8910 and HO-8910 PM cells was determined using fluorescence microscopy to observe lentivirus-mediated GFP expression and was confirmed to be over 80 percent. UHRF1 expression in infected HO-8910 and HO-8910 PM was evaluated by real-time PCR and Western blot analysis. The Cell Counting Kit-8 (CCK-8) assay was used to measure cell viability; flow cytometry and Hoechst 33342 assay was applied to measure cell cycle arrest and apoptosis. Cell invasion was assessed using transwell chambers. Our results demonstrated that the loss of UHRF1 promoted HO-8910 and HO-8910 PM cell apoptosis, while inhibiting cell proliferation. In addition, UHRF1 knockdown significantly inhibited the invasion of human ovarian cancer cells. In the present study, we also showed that depleting HO-8910 cells of UHRF1 caused activation of the DNA damage response pathway, with the cell cycle arrested in G2/M-phase. The DNA damage response in cells depleted of UHRF1 was illustrated by phosphorylation of CHK (checkpoint kinase) 2 on Thr68, phosphorylation of CDC25 (cell division control 25) on Ser 216 and phosphorylation of CDK1 (cyclin-dependent kinase 1) on Tyr 15.

• Clinical and Experimental Reproductive Medicine
• /
• 제16권1호
• /
• pp.81-91
• /
• 1989

It has been suggested that the prognosis for fertility of the infertile patients with healed pelvic tuberculosis is very poor. Total 60 patients(77 cycles) with previous history of pelvic tuberculosis who underwent IVF-ET from January 1988 to March 1989 at SNUH were classified into three groups according to the principal histopathological lesions : tuberculous endometritis group(N=20, 28 cycles), tuberculous salpingitis group(N=32, 37 cycles) and pelvic peritoneal tuberculosis group(N=8, 12 cycles). To evaluate the effects of previous pelvic tuberculous lesions on ovarian follicular growth and development in controlled ovarian hyperstimulation for IVF-ET and its final outcome, serum E2 levels on the day of hCG administration(Day 0) and the day after hCG administration(Day +1), the number of ovarian follicles with mean diamete ${\geqq}$ 12 mm on Day 0, the number of oocytes retrieved by transvaginal aspiration, and pregnancy rate per cycle were measured and compared with control group(N=123, 161 cycles). There were no significant differences in cancellation rate during controlled ovarian hyperstimulation, total dosage of FSH and hMG administrated, menstrual cycle date(MCD) of hCG injection, serum E2 levels, the number of ovarian follicles with mean diameter ${\geqq}$ 15 mm, and the number of oocytes retrieved between pelvic tuberculosis group and control group. But in pelvic tuberculosis group, the number of ovarian follicles with mean diameter 12-14 mm, total number of ovarian follicles(${\geqq}$ 12 mm), and pregnancy rate per cycle were significantly decreased. These data suggest that previous pelvic tuberculous lesions have no significant adverse effects on the ovarian response to gonadotropin stimulation. IVF-ET proved to be an useful treatment modality for infertile patients with previous history of pelvic tuberculosis in spite of its relatively lowered pregnancy rate.

• Clinical and Experimental Reproductive Medicine
• /
• 제26권2호
• /
• pp.179-183
• /
• 1999

This study was performed to determine the significance of a baseline ovarian cyst on the response to controlled ovarian hyperstimulation and the outcome of IVF-ET. One hundred one patients who underwent IVF-ET were enrolled in this study. The outcome of 31 patients, who had an ovarian cyst of >10mm detected at ultrasound examination performed on day 3, was compared with that of 70 patients who underwent a similar protocol and did not have an ovarian cyst. E2 level on the day of hCG administration, the number of follicles, the number of oocytes retrieved, the number of embryo transferred and the pregnancy rate were evaulated. The E2 level on the day of hCG adminstration and the number of mature oocytes retrieved were lower in the group with a baseline cyst. The pregnancy rate also was significantly lower in the group with a cyst (21% versus 38%). Therefore a baseline ovarian cyst on cycle day 3 was associated with a poorer outcome after IVF-ET.

• 한국수정란이식학회지
• /
• 제13권1호
• /
• pp.21-28
• /
• 1998

From September 1993 to August 1997, we treated ovarian disorders in 1,782 repeat breeder cows after diagnosis by ultrasound on 35 farms in Kyeong-ki do. The rates of ovarian appearance were 59.8% of CL group, 16.7% of ovarian atrophy or hypofunction, 15.4% of luteal cyst, 4.3% of follicular cyst and 3.7% of follicle group in diagnosis with rectal palpation and ultrasound. The results of treatment for ovarian disorders were 1,316 cows(73.8%) in estrus, 348 cows(19.5%) in non-detected and 118 cows(6.6%) in unidentified. The rates of PGF$_2$$\alpha$, GnRH and mineral vitamin complex treatment to estrus were 79.6, 69.2 and 50.3%. Two groups were treated with 5 ml PGF$_2$$\alpha$ intramuscular injection(I.M.) and 1.5 ml PGF$_2$$\alpha$ intraovarian injection(I.O.), and the results of 1.5ml PGF$_2$$\alpha$ I.0. were significantly higher than that of 5ml PGF$_2$$\alpha$ I.M. in inductiom estrus(p<0.05). The pregnant rates were 29.8% in total repeat breeder cows with ovarian disorders following diagnosis and treatment. In summary, rectal palpation and ultrasonography were proven to be useful tools of diagnosis and treatment in ovarian disorders, and it was also suggested that the response to treatment with PGF$_2$$\alpha$ I.0. was better than PGF$_2$$\alpha$ I.M.

• 대한생식의학회:학술대회논문집
• /
• 대한불임학회 2005년도 제49차 추계학술대회
• /
• pp.66-80
• /
• 2005

• Clinical and Experimental Reproductive Medicine
• /
• 제16권1호
• /
• pp.57-68
• /
• 1989

Some infertile patients who need IVF-ET for conception have small ovarian cysts diagnosed in pelvic ultrasonography. It is well known that it is impossible or very difficult to perform controlled ovarian hyperstimulation(COH) for such patients because of the poor ovarian response or the possibility of ovarian hyperstimulation syndrome(OHSS). To remove or to decrease the size of ovarian cysts, estrogen and progesterone (E-P) therapy with oral contraceptives for 2 cycles and transvaginal aspiration of ovarian cysts using transvaginal ultrasonography were performed in 36 IVF-cancelled infertile patients with ovarian cysts from February to October, 1988 at Seoul National University Hospital. Thirty-nine ovarian cysts($32.8{\pm}9.6$mm in mean diameter) were treated with E-P therapy, and their size decreased to $28.2{\pm}11.0mm$ after 1 cycle and significantly to $24.8{\pm}14.7mm$ after 2 cycles. After E-P therapy for 2 cycles, 7(17.9%) ovarian cysts disappeared in ultrasonography, 9(23.1%) decreased in size significantly, 18(46.2%) had no change in size and 5(12.8%) increased in size. Thirty-two ovarian cysts($30.2{\pm}9.7mm$) in 30 patients were aspirated transvaginally, and there was no significant decrease in size after follow-up transvaginal ultrasonography($27.8{\pm}12.5mm$). After transvaginal aspiration, 3(9.4%) ovarian cysts disappeared and 28(87.5%) had no change in size. The mean amount of the transvaginally aspirated cystic fluids was $19.6{\pm}13.2ml$, and there was no malignant cells in aspiration cytology. Four endometrioid cysts, one dermoid cyst and one mucinous cyst could be diagnosed in consideration of the findings of transvaginal ultrasonography and the characteristics and cytology of aspirated fluids. Therefore E-P therapy and transvaginal aspiration of ovarian cysts had made it possible to restart IVF program earlier in the IVF-cancelled patients with ovarian cysts.

• Asian Pacific Journal of Cancer Prevention
• /
• 제15권8호
• /
• pp.3359-3362
• /
• 2014

Increasing attention is being devoted to the mechanisms by which cells receive signals and then translate these into decisions for growth, death, or migration. Recent findings have presented significant breakthroughs in developing a deeper understanding of the activation or repression of target genes and proteins in response to various stimuli and of how they are assembled during signal transduction in cancer cells. Detailed mechanistic insights have unveiled new maps of linear and integrated signal transduction cascades, but the multifaceted nature of the pathways remains unclear. Although new layers of information are being added regarding mechanisms underlying ovarian cancer and how polymorphisms in VDR gene influence its development, the findings of this research must be sequentially collected and re-interpreted. We divide this multi-component review into different segments: how vitamin D modulates molecular network in ovarian cancer cells, how ovarian cancer is controlled by tumor suppressors and oncogenic miRNAs and finally how vitamin D signaling regulates miRNA expression. Intra/inter-population variability is insufficiently studied and a better understanding of genetics of population will be helpful in getting a step closer to personalized medicine.

• 대한한방부인과학회지
• /
• 제31권3호
• /
• pp.121-130
• /
• 2018

Objectives: The purpose of this study is to report the effects of Korean medical treatment in ovarian disorder patients resistant to controlled ovarian hyperstimulation. There are some case-reports about effectiveness of the Korean medical treatment to treat ovulation disorder and become pregnant, but cases are still deficient. Methods: The patient was diagnosed possibility of premature ovarian failure by serum hormone assay and underwent hyperstimulation to freeze oocyte. But ovary had no response to hyperstimulation. She was treated by Korean medical treatment, such as herbal medicine, acupuncture and moxibustion. Results: After the treatment, the patient recovered from irregular ovulation & menstrual cycle and became pregnant and gave birth. Conclusions: This case shows the Korean medical treatment might be effective in ovarian disorder patients resistant to hyperstimulation.

• Asian-Australasian Journal of Animal Sciences
• /
• 제13권8호
• /
• pp.1059-1062
• /
• 2000

The objective of the investigation was to study the effect of intramuscular $PGF_2\;{\alpha}$ and GnRH on estrus behavior and ovarian response in Murrah buffalo heifers. Twelve Murrah buffalo heifers at 32 months of age that had not exhibited behavioral estrus symptom were included in the experiment. Out of 12,4 heifers were in follicular phase (plasma estradiol $57.05{\pm}12.52pg/ml$), another 4 heifers were in luteal phase (Plasma progesterone $2.24{\pm}0.25ng/ml$) while the ovaries of remaining four heifers were inactive (estradiol $23.70{\pm}1.66pg/ml$and progesterone $0.32{\pm}0.06ng/ml$). $PGF_2\;{\alpha}$ (25 mg, Lutalyse, im) and GnRH (200 ug, Fertagyl, iv) was administered to each heifer at interval of 10 days. The plasma progesterone concentration decreased within 48 hrs after $PGF_2\;{\alpha}$ injection and followed thereafter with follicular growth, estrus and ovulation. GnRH administration induced follicular growth, elevation of plasma estradiol concentration with subsequent exhibition of behavioral estrus in 2 out of 4 heifers having inactive ovary. The observation reveals that Murrah buffalo heifers at 32 months of age have developed receptors for $PGF_2\;{\alpha}$ and GnRH on ovarian and pituitary tissue respectively and response the single injection of $PGF_2\;{\alpha}$ and GnRH similar to the mature cycling animals.

• Asian Pacific Journal of Cancer Prevention
• /
• 제15권18호
• /
• pp.7665-7671
• /
• 2014

Objectives: The association between body mass index (BMI) and ovarian cancer risk is unclear and requires further investigation. The present meta-analysis was conducted to assess the effect of overweight and obesity on ovarian cancer risk in the premenopausal and postmenopausal periods. Data sources: Major electronic databases were searched until February 2014 including Medline and Scopus. Reference lists and relevant conference databases were searched and the authors were contacted for additional unpublished references. Review Methods: All cohort and case-control studies addressing the effect of BMI on ovarian cancer were included, irrespective of publication date and language. The effect measure of choice was risk ratio (RR) for cohort studies and odds ratio (OR) for case-control studies. The results were reported using a random effects model with 95% confidence intervals (CIs). Results: Of 3,776 retrieved studies, 19 were ultimately analyzed including 10 cohort studies involving 29,237,219 person-years and 9 case-control studies involving 96,965 people. The results of both cohort and case-control studies showed being overweight and obesity increased the risk of ovarian cancer compared to women with normal weight during both premenopausal and postmenopausal periods: RR=1.08 (95%CI: 0.97, 1.19) and OR=1.26 (95%CI: 0.97, 1.63) for overweight and RR=1.27 (95%CI: 1.16, 1.38) and OR=1.26 (95%CI: 1.06, 1.50) for obesity. Conclusions: There is sufficient evidence that an increase in BMI can increase the risk of ovarian cancer regardless of the menopausal status, mimicking a dose-response relationship although the association is not very strong.