• Title/Summary/Keyword: Recurrent miscarriage

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Prevalence of Y chromosome microdeletions among infertile Mongolian men

  • Damdinsuren, Erdenesuvd;Naidansuren, Purevjargal;Gochoo, Mendsaikhan;Choi, Bum-Chae;Choi, Min-Youp;Baldandorj, Bolorchimeg
    • Clinical and Experimental Reproductive Medicine
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    • v.49 no.2
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    • pp.101-109
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    • 2022
  • Objective: Y chromosome microdeletions are the second most common genetic cause of male infertility after Klinefelter syndrome. The aim of this study was to determine the patterns of Y chromosome microdeletions among infertile Mongolian men. Methods: A descriptive study was performed on 75 infertile men from February 2017 to December 2018. Y chromosome microdeletions were identified by polymerase chain reaction. Semen parameters, hormonal levels, and testis biopsy samples were examined. Results: Among 75 infertile men, two cases of Y chromosome microdeletions were identified. The first case had an AZFa complete deletion and the other had an AZFc partial deletion. This study found that the proportion of Y chromosome microdeletions among infertile Mongolian men was 2.66%. Conclusion: The findings can be applied to in vitro fertilization and assisted reproductive technology, and our results will help clinicians improve treatment management for infertile Mongolian couples.

Expression of Decidual Natural Killer (NK) Cells in Recurrent Abortion Patients with Increased Peripheral NK Cells (말초혈액 자연살해세포가 증가된 반복유산 환자의 탈락막 자연살해세포의 발현)

  • Lee, Hyun-Joo;Kim, Sun-Haeng;Yang, Kwang-Moon;Park, Dong-Wook;Park, Chan-Woo;Hong, Sung-Ran;Cho, Dong-Hee;Song, In-Ok;Koong, Mi-Kyoung;Kang, Inn-Soo
    • Clinical and Experimental Reproductive Medicine
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    • v.36 no.3
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    • pp.199-207
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    • 2009
  • Objectives: The purpose of this study was to compare the decidual NK cell populations between increased pre-conceptional peripheral NK cell population and normal pre-conceptional peripheral NK cell population in women with a history of recurrent abortion. Methods: Fourteen women with history of recurrent abortion and elevated pre-conceptional peripheral NK cell, above 15% of peripheral lymphocyte population were included in this study. As a control, twelve women with history of recurrent abortion and their peripheral NK cell percentage showed below 15% were included. Distribution of $CD56^+$ and $CD16^+$ NK cells in paraffin embedded decidual tissues including implantation sites were examined by immunohistochemical staining using anti-CD56, 16 monoclonal antibodies. After immuohistochemical staining, the numbers of decidual NK cells were counted and compared these results between study and control groups. Results: There was significant difference in decidual $CD56^+$ NK cell count ($170.1{\pm}132.1$ vs. $68.3{\pm}66.1$, p=0.02) between increased peripheral $CD56^+$ NK cell group and control group. But, there showed no statistically significant correlation between decidual $CD56^+$ NK cell count and peripheral $CD56^+$ NK cell percentage (r=0.229, p=0.261). Also there was no statistically difference decidual $CD16^+$ NK cell count between study and control group ($25.70{\pm}11.72$ vs. $31.17{\pm}22.67$), and no correlation between decidual $CD16^+$ NK cell and peripheral $CD16^+$ NK cell percentage (r=-1.40, p=0.535). Conclusions: This study shows that decidual $CD56^+$ NK cell are significantly increased in decidua of women exhibiting a history of recurrent abortion with increased $CD56^+$ peripheral NK cell. This study suggests that the percentage of peripheral NK cell reflect the expression of decidual NK cell. Consequently, pre-conceptional peripheral blood NK cell population can be the useful marker for detecting the risk of subsequent miscarriage.

A Traditional Literature Review on Acupuncture and Moxibustion during Pregnancy (임신시 침구 치료의 고전문헌 고찰)

  • Chang, Li;Sohn, Young-Joo;Lee, Yong-Bum;Lee, Hyang-Sook
    • Korean Journal of Acupuncture
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    • v.28 no.2
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    • pp.87-104
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    • 2011
  • Objectives : A safety issue on acupuncture and moxibustion treatment during pregnancy is as important as effectiveness. To establish a rationale and research strategy for future studies, a traditional literature review was performed to summarize how and for what conditions acupuncture and moxibustion treatment was given during pregnancy. Methods : An extensive traditional literature search for acupuncture and moxibustion treatment during pregnancy was conducted in texts on acupuncture and moxibustion, obstetrics and gynecology, and comprehensive medical texts. Treatment conditions, methods, and contraindications were summarized and tabulated. Results : Twenty-eight books were included in our review. Most frequent description of acupuncture and moxibustion treatment use during pregnancy was for difficult delivery including breech presentations; commonly used acupuncture points for difficult labor included LI4, SP6, BL67, BL60, KI6, ST30, SP12, LR4, LR3, PC6, CV3, CV14, KI13, and GB21, indicating that they may have to be avoided during pregnancy. Descriptions of other symptoms or conditions were sparse. For habitual abortion or recurrent miscarriage, moxibustion on GV4, BL23, CV3, KI8, and KI2 was indicated. A combination of LI4 and SP6, and CV4 were contraindicated during pregnancy consistently across the reviewed books. Conclusions : Our traditional literature review has shown that the use of acupuncture and moxibustion treatment during pregnancy has been limited. Given that more and more pregnant women are interested in safe and effective treatment, further research of acupuncture's safety and efficacy during pregnancy is urgently needed.

An update of preimplantation genetic diagnosis in gene diseases, chromosomal translocation, and aneuploidy screening

  • Chang, Li-Jung;Chen, Shee-Uan;Tsai, Yi-Yi;Hung, Chia-Cheng;Fang, Mei-Ya;Su, Yi-Ning;Yang, Yu-Shih
    • Clinical and Experimental Reproductive Medicine
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    • v.38 no.3
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    • pp.126-134
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    • 2011
  • Preimplantation genetic diagnosis (PGD) is gradually widely used in prevention of gene diseases and chromosomal abnormalities. Much improvement has been achieved in biopsy technique and molecular diagnosis. Blastocyst biopsy can increase diagnostic accuracy and reduce allele dropout. It is cost-effective and currently plays an important role. Whole genome amplification permits subsequent individual detection of multiple gene loci and screening all 23 pairs of chromosomes. For PGD of chromosomal translocation, fluorescence $in-situ$ hybridization (FISH) is traditionally used, but with technical difficulty. Array comparative genomic hybridization (CGH) can detect translocation and 23 pairs of chromosomes that may replace FISH. Single nucleotide polymorphisms array with haplotyping can further distinguish between normal chromosomes and balanced translocation. PGD may shorten time to conceive and reduce miscarriage for patients with chromosomal translocation. PGD has a potential value for mitochondrial diseases. Preimplantation genetic haplotyping has been applied for unknown mutation sites of single gene disease. Preimplantation genetic screening (PGS) using limited FISH probes in the cleavage-stage embryo did not increase live birth rates for patients with advanced maternal age, unexplained recurrent abortions, and repeated implantation failure. Polar body and blastocyst biopsy may circumvent the problem of mosaicism. PGS using blastocyst biopsy and array CGH is encouraging and merit further studies. Cryopreservation of biopsied blastocysts instead of fresh transfer permits sufficient time for transportation and genetic analysis. Cryopreservation of embryos may avoid ovarian hyperstimulation syndrome and possible suboptimal endometrium.

A Survey on the Treatments used in Oriental Obsterics & Gynecology (한방부인과질환에 사용되는 치료방법에 대한 조사연구)

  • Lee, In-Seon;Bae, Kyung-Mi
    • The Journal of Korean Obstetrics and Gynecology
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    • v.22 no.1
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    • pp.203-230
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    • 2009
  • Purpose: In order to know therapies used in the field of Obsterics & Gynecology of Oriental medicine. Methods: This survey investigated papers about clinical study, literature investigation for therapeutic methods and treatment reports published from 1999. 2${\sim}$2008. 11. Results: In the clinical studies, acupuncture is more frequently used than herbal medicine. But in the treatment reports, herbal medicine is most frequently used except some cases. Besides acupuncture and moxibustion was used frequently. In the treatment reports various acupuncture methods were used except vaginal bleeding or abdominal pain cases. Whole body acupuncture was used mainly. Pharmacopuncture, Sa-am Acupuncture, auricular acupuncture was also used frequently. And Dong's acupuncture, Hwa acupuncture was used sometimes. Moxibustion was tend to be used for dysfunctional uterine bleeding, menopausal disorder, urinary incontinence, vaginal bleeding or abdominal pain during pregnancy period, hyperemesis, recurrent miscarriage, postpartum disease, lochiorrhea. Also other treatment methods was used such as external therapy, aromatherapy, herbal retention enema, fumigation, electric lipolysis acupuncture, Chuna manual medicine, obesity management, acupuncture at uterus cervix, magnetic innervation therapy, exercise, cupping and physical therapy. Conclusion: These results suggests that acupuncture, moxibustion and herbal medicine are most frequent therapy in the field of Obsterics & Gynecology of Oriental medicine. And other therapy are used such as external therapy, aromatherapy, herbal retention enema, fumigation and so on.

Number of External Anogenital Warts is Associated with the Occurrence of Abnormal Cervical Cytology

  • Chayachinda, Chenchit;Boriboonhirunsarn, Dittakarn;Thamkhantho, Manopchai;Nuengton, Chanon;Chalermchockcharoenkit, Amphan
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.3
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    • pp.1177-1180
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    • 2014
  • Background: Anogenital warts (AGWs) are common results of sexually transmitted infection (STI). Human papillomavirus (HPV) types 6 and 11, which are non-oncogenic types, account for 90% of the clinical manifestations. Although the quadrivalent HPV vaccine has been launched, AGW remains prevalent in some countries and shows association with abnormal cervical cytology. Objectives: To study the prevalence of abnormal cervical cytology (low grade squamous intraepithelial lesions or worse; LSIL+) in immunocompetent Thai women newly presenting with external AGWs. Materials and Methods: Medical charts of all women attending Siriraj STI clinic during 2007-2011 were reviewed. Only women presenting with external AGWs who were not immunocompromised (pregnant, human immunodeficiency virus positive or being on immunosuppressant drugs) and had not been diagnosed with cervical cancer were included into the study. Multivariate analysis was used to determine the association between the characteristics of the patients and those of AGWs and LSIL+. Results: A total of 191 women were eligible, with a mean age of $27.0{\pm}8.9$ years; and a mean body mass index of $20.6{\pm}8.9kg/m^2$. Half of them finished university. The most common type of AGWs was exophytic (80.1%). The posterior fourchette appeared to be the most common affected site of the warts (31.9%), followed by labia minora (26.6%) and mons pubis (19.9%). The median number of lesions was 3 (range 1-20). Around 40% of them had recurrent warts within 6 months after completing the treatment. The prevalence of LSIL+ at the first visit was 16.3% (LSIL 12.6%, ASC-H 1.1%, HSIL 2.6%). After adjusting for age, parity and miscarriage, number of warts ${\geq}5$ was the only factor associated with LSIL+(aOR 2.65, 95%CI 1.11-6.29, p 0.027). Conclusions: LSIL+ is prevalent among immunocompetent Thai women presenting with external AGWs, especially those with multiple lesions.

Long Term Outcomes of Laser Conization for High Grade Cervical Intraepithelial Neoplasia in Thai Women

  • Wongtiraporn, Weerasak;Laiwejpithaya, Somsak;Sangkarat, Suthi;Benjapibal, Mongkol;Rattanachaiyanont, Manee;Ruengkhachorn, Irene;Chaopotong, Pattama;Laiwejpithaya, Sujera
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.18
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    • pp.7757-7761
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    • 2014
  • Aim: To report long term outcomes of laser conization for high grade cervical intraepithelial neoplasia (CIN) in Thai women. Materials and Methods: A retrospective cohort study was conducted in patients undergoing laser conization due to abnormal cervical cytology suggesting neoplasia during 1989 to 1994 and having follow-up data until December 2010. Conization was performed under colposcopy using a 0.5-mm $CO_2$ laser beam with power density of $18,000-20,000watts/cm^2$, and the surgical base was vaporized using a low power defocused beam. The follow-up protocol included cervical cytology and colposcopy. Long term outcome measures were failure rate (persistence and recurrence), post-conization status of transformation zone, and obstetric outcomes. Results: Of 104 patients undergoing conization, 71 had therapeutic conization for high grade CIN and were followed up for a median time of 115 (range 12-260) months. There was one case of persistent and one of recurrent disease comprising a failure rate of 2.8%. The post treatment transformation zone was well visualized in 68.3% of 63 patients with an intact uterus. Sixteen patients achieved 25 pregnancies; none had second trimester miscarriage. The obstetric outcomes were unremarkable. Conclusions: Laser conization under colposcopic visualization for the treatment of high grade CIN in Thai women has a low failure rate of 2.8%. The post-conization transformation zone could not be evaluated completely in approximately 30% of cases; therefore the follow-up protocol should include both cytology and colposcopy. Obstetric outcomes are not adversely affected by this therapeutic procedure.

Increased Peripheral NK Cell Fraction and Their Cytolytic activity in Patients with History of Recurrent Spontaneous Abortion (말초혈액 자연살해세포 분획 및 세포용해 활성도 분석을 통한 습관성 유산 위험군의 진단적 유용성에 관한 연구)

  • Choi, Ji-Young;Hwang, Su-Jin;Han, Ae-Ra;Yoo, Ji-Hee;Park, Dong-Wook;Park, Chan-Woo;Kim, Hye-Ok;Cha, Sun-Hwa;Kim, Jin-Young;Song, In-Ok;Koong, Mi-Kyoung;Kang, In-Soo;Yang, Kwang-Moon
    • Clinical and Experimental Reproductive Medicine
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    • v.37 no.2
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    • pp.115-124
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    • 2010
  • Objective: To testify whether the increased peripheral blood natural killer (pbNK) cells fraction and their cytolytic activity could coincide with patient's history of recurrent spontaneous abortion (RSA) and to evaluate these factors are can be valuable diagnostic markers in RSA. Methods: Women with a history of RSA comprised the patient group (n=35). Normal fertile women, who were experienced at least one healthy term birth without history of infertility or recurrent miscarriage, were included as the healthy control group (n=15). The pbNK cells of $CD3^-/CD56^+/CD16^+$ and their cytolytic activities against K562 cells were measured by flow cytometry and the values were compared between study and control groups. Results: Proportions of pbNK cells among peripheral blood monocytes (PBMC) ($14.2{\pm}5.2$ vs. $9.4{\pm}3.7%$, p=0.002, 95% confidence interval [CI], 1.8 to 7.8) was significantly higher in the patient group. The odds ratio of having RSA history was increased as 8.4 folds (59% of sensitivity, 80% of specificity, and 95% CI: 2.0 to 35.8) in patients who showed pbNK cells fraction above 12.1% which was determined as cut-off value by using ROC curve analysis. The cytolytic activities of pbNK cells which measured by three different ratio of effecter pbNK cells to target K562 cells and calculated by the percent of cytolytic K562 cells, were significantly higher in study group than that of control group (in 50:1 ratio, $48.3{\pm}19.0$ vs. $31.3{\pm}11.9%$, p=0.002; in 25:1 ratio, $37.0{\pm}18.1$ vs. $20.2{\pm}9.2%$, p<0.001; in 12.5:1 ratio, $23.5{\pm}12.7$ vs. $12.4{\pm}7.3%$, p=0.001). With the cut-off values of cytolytic activity of pbNK cells as 43.1% (50:1), 26.9% (25:1), and 17.4% (12.5:1) each, the risk of having RSA history was increased by 10.0, 11.4, and 15.0 folds in patients who had increased in each effector of pbNK to target of K562 cells ratio. Conclusion: The analysis of pbNK cells fraction and their cytolytic activity can be valuable diagnostic markers for RSA. We are going to planning the large scaled studies which include the data of obstetric outcomes in subsequent pregnancies to clarify our results of this study.