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"This review article gives a brief history of the classical experiments that led to the development of the embryo culture medium and in vitro embryo culture. It proposes that, in view of the outstanding and significant pioneering contributions of Wesley Kingston Whitten to the development of embryo culture medium, he be considered the “Father of Embryo Culture Medium”. Furthermore, it describes the nutritional requirements of early embryos and how these requirements with specific references to carbohydrates, amino acids, phosphates, growth factors, etc, have been utilized to formulate increasingly more complex embryo culture media. This has led to the development of progressively more efficacious embryo culture media including the formulation of completely defined and synthetic protein-free embryo culture medium. The review also describes physical factors, growth factors, insemination methods for the fertilization of oocytes and culture methods affecting embryo growth, development, metabolism, oxygen embryotoxicity and survival. In procedural terms, the review also summarizes the evolution of embryo culture techniques from tube culture to, microdrop culture under oil to co-culture to ultra microdrop culture techniques. It includes techniques of in vitro maturation and for the selection of potentially viable embryos of various developmental stages"

"This review article gives a brief history of the classical experiments that led to the development of the embryo culture medium and in vitro embryo culture. It proposes that, in view of the outstanding and significant pioneering contributions of Wesley Kingston Whitten to the development of embryo culture medium, he be considered the “Father of Embryo Culture Medium”. Furthermore, it describes the nutritional requirements of early embryos and how these requirements with specific references to carbohydrates, amino acids, phosphates, growth factors, etc, have been utilized to formulate increasingly more complex embryo culture media. This has led to the development of progressively more efficacious embryo culture media including the formulation of completely defined and synthetic protein-free embryo culture medium. The review also describes physical factors, growth factors, insemination methods for the fertilization of oocytes and culture methods affecting embryo growth, development, metabolism, oxygen embryotoxicity and survival. In procedural terms, the review also summarizes the evolution of embryo culture techniques from tube culture to, microdrop culture under oil to co-culture to ultra microdrop culture techniques. It includes techniques of in vitro maturation and for the selection of potentially viable embryos of various developmental stages. "

"Pendahuluan: Keberhasilan fertilisasi in vitro (FIV) dipengaruhi oleh kualitas embrio. Menghindari transfer embrio dengan abnormalitas jumlah kromosom (aneuploidi) pada proses FIV meningkatkan keberhasilan implantasi. Baku emas dalam pemeriksaan status kromosom embrio adalah Preimplantation Genetic Testing for Aneuploidy (PGT-A) yang termasuk tindakan yang invasif, dapat menyebabkan kerusakan embrio saat biopsi, dan memerlukan keterampilan khusus operator. Diharapkan adanya metode lain yang dapat menilai status kromosom embrio dengan risiko rendah dan tidak invasif. miRNA diekspresikan oleh embrio manusia dan ekspresinya menunjukkan perbedaan antara embrio euploid dan aneuploid. miRNA yang disekresikan pada medium kultur diharapkan dapat menjadi biomarker untuk menilai status koromosom embrio. Tujuan: Tujuan penelitian ini adalah untuk mengetahui hubungan level ekspresi miRNA-191 dan miRNA-548c-3p pada medium kultur embrio dengan status kromosom embrio. Metode: Penelitian potong lintang ini dilakukan pada 30 embrio dari 12 pasien usia antara 28-40 tahun yang menjalani program FIV di tiga klinik bayi tabung. Embrio diperoleh dari siklus FIV dan dikultur sampai tahap blastokista. PGT-A dilakukan dengan cara biopsi blastokista pada hari ke-5 atau ke-6 dan analisis kromosom dilakukan dengan metode NGS untuk menentukan embrio euploid atau aneuploid. Sampel sisa medium kultur embrio tahap blastokista dilakukan pemeriksaan level ekspresi miRNA-191 dan miRNA 548c-3p dengan metode qPCR. Hubungan antara level ekspresi miRNA-191 dan miRNA 548c-3p pada médium kultur embrio euploid dan aneuploid kemudian dianalisis. Hasil: Tidak terdapat perbedaan bermakna dalam karakteristik subjek di antara kelompok embrio euploid dan aneuploid (p>0,05). Tidak terdapat perbedaan yang bermakna dalam level ekspresi miRNA-191 antara kelompok embrio euplodi dan aneuploidi (kuantifikasi median 7,260 vs 1,039 dengan p=0,497). Tidak terdapat perbedaan yang bermakna dalam level ekspresi miRNA-548c-3p antara kelompok euploid dan aneuploidi (kuantifikasi median 1,919 vs 4,311 dengan p=0,707) Kesimpulan: Tidak didapatkan hubungan bermakna antara level ekspresi miRNA-191 dan miRNA-548c-3p di medium kultur embrio terhadap status kromosom embrio. Level ekspresi miRNA-191 dan miRNA-548c-3p pada medium kultur embrio belum dapat menjadi kandidat yang baik sebagai biomarker status kromosom embrio.

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Introduction: IVF success is related to embryo quality. Avoiding aneuploid embryo transfer embryo with chromosome abnormalitis (aneuploidy) in IVF will increase implantation success. The gold standard for embryo chromosomal status testing is PGT-A, which is an invasive method that can cause embryo damage during biopsy and need operator’s special skill. Therefore, another method to test embryo chromosomal status is needed, with lower risk and not invasive. miRNA is expressed by human embryo and this expression shows the difference between euploid and aneuploid embryo. miRNA secreted into culture media is expected to be a biomarker for embryo chromosomal status testing. Purpose: The purpose of this research is to analyze the relationship between miRNA-191 and miRNA-548c-3p expression level in embryo culture media with embryo chromosomal status. Methods: This cross-sectional study was done to 30 embryos from 12 patients age 28-40 years old who underwent an IVF program in three IVF clinics. Embryos from the IVF cycle were cultured until blastocyst stage. PGT-A was done by doing blastocyst biopsy on day 5 or 6 and chromosomal analysis was done using the NGS method to classify euploidy or aneupoidy embryo. The expression levels of miRNA-191 and miRNA-548c-3p were analyzed from culture media sample of the embryo in blastocyst stage using qPCR method. Then the relationship between miRNA-191 and miRNA-548c-3p expression level with embryo chromosomal status was analyzed. Results: There is no difference in subjects’ characteristics between the euploid and aneuploid embryo groups (p>0.05). There is no significant difference in the expression level of miRNA-191 of the euploid and aneuploid embryo groups. (median quantification 7,260 vs 1,039 with p=0,497). There is no significant difference in the expression level of miRNA-191 of the euploid and aneuploid embryo groups. (median quantification 1,919 vs 4,311 with p=0,707). Conclusion: There are no relationship between miRNA-191 and miRNA-548c-3p expression level with embryo chromosomal status. Level expression of miRNA-191 and miRNA-548c-3p in embryo culture have not be a good biomarker candidate for embryo chromosomal status."

"after the world witnessed groundbreaking early advances in assisted reproduction that utilized conventional in vitro fertilization in the human, more complex invasive techniques of oocyte and embryo manipulation were introduced to treat human subfertility. amongst these were numrous micromanipulation techniques such as partial zona dissection (PZD; 1988), subzonal insemination (SUZI, 1988) and subsequently ICSI, which became the most powelful tool of assisted fertilization (1992). ICSI requires micromanipulation of both the male and the female gamete. another importand approach is laser-assisted opening of the zona pellucida at different stages of preimplantation development either; to assist hatching (1990) or to remove cells for preimplantation genetic diagnosis (1989), or fragments to restore the integrity of an embryo (1999). sometimes even blastocysts considered for vitrification need further manipulation in order to artificially shrink the blastocoel which facilitates survival of expanded blastocyst (2002). other methods for reproductive purposes, however, failed to gain acceptance in population, such as cytoplasm transfer (1997), nuchler transfer (1998) and cloning (1996), to name but a few"

"Tujuan: Faktor embrio sangat mempengaruhi hasil dari fertilization in vitro (FIV). Salah satu metode untuk memastikan embrio tidak memiliki kromosom aneuploid adalah Prosedur Pengujian Genetik Praimplantasi untuk Aneuploidi atau Skrining Genetik Praimplantasi, yang melibatkan biopsi blastomer pada fase 8 sel atau trofektoderm pada fase blastokista. Prosedur ini merupakan prosedur yang invasif dan berpotensi membahayakan embrio.Metode: Penelitian adalah penelitian cross-sectional pada pasien program FIV yang dilanjutkan dengan pemeriksaan kromosom dengan NGS di Pusat IVF RS Pondok Indah dan Pusat FIV Morula RS Bunda pada bulan Desember 2021 sampai dengan Desember 2022. Embrio yang mencapai stadium blastokista pada hari ke 5 atau 6 dibersihkan dan dimasukkan ke dalam tabung PCR selama seminggu; dilanjutkan dengan anotasi oleh embriologi untuk menentukan penilaian morfologi dan parameter morfokinetik menggunakan Microscopcopy Time-Lapse. Uji chi-square digunakan untuk menganalisis variabel bivariat.Hasil: Seratus dua puluh empat sampel didapatkan pada hari ke 5 pasien yang menjalani prosedur FIV. Sebanyak 50,8% memiliki kromosom aneuploid, dan 49,2% adalah euploid. Median karakteristik morfokinetik yaitu 3,86 kali lipat. Ditemukan bahwa tingkat ekspansi, time to pro-nuclear fading, dan time to the synchrony of the third cell cycle berhubungan secara signifikan dengan status euploid (p = =0,000; 0,041 dan 0,036).Kesimpulan: Tingkat ekspansi terbukti secara bermakna memiliki pengaruh dalam memprediksi status ploidi embrio.Metode: Penelitian adalah penelitian cross-sectional pada pasien program FIV yang dilanjutkan dengan pemeriksaan kromosom dengan NGS di Pusat IVF RS Pondok Indah dan Pusat FIV Morula RS Bunda pada bulan Desember 2021 sampai dengan Desember 2022. Embrio yang mencapai stadium blastokista pada hari ke 5 atau 6 dibersihkan dan dimasukkan ke dalam tabung PCR selama seminggu; dilanjutkan dengan anotasi oleh embriologi untuk menentukan penilaian morfologi dan parameter morfokinetik menggunakan Microscopcopy Time-Lapse. Uji chi-square digunakan untuk menganalisis variabel bivariat.Hasil: Seratus dua puluh empat sampel didapatkan pada hari ke 5 pasien yang menjalani prosedur FIV. Sebanyak 50,8% memiliki kromosom aneuploid, dan 49,2% adalah euploid. Median karakteristik morfokinetik yaitu 3,86 kali lipat. Ditemukan bahwa tingkat ekspansi, time to pro-nuclear fading, dan time to the synchrony of the third cell cycle berhubungan secara signifikan dengan status euploid (p = =0,000; 0,041 dan 0,036).Kesimpulan: Tingkat ekspansi terbukti secara bermakna memiliki pengaruh dalam memprediksi status ploidi embio.

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Objective : Embryonic factors greatly influence IVF outcomes. One method to ensure the embryo does not have aneuploid chromosomes is Preimplantation Genetic Testing for Aneuploidy or Preimplantation Genetic Screening procedure, which involves undergoing a biopsy of the blastomeres in the 8-cell phase or the trophectoderm in the blastocyst phase. The procedure is invasive and can potentially harm the embryo.

Methods: This study is a cross-sectional that requires patients undergoing IVF followed by chromosome examination with NGS that was conducted at the IVF Center at Pondok Indah Hospital and Morula IVF Center at Bunda Hospital from December 2021 to December 2022. Each embryo that reaches the blastocyst stage on day 5 or 6 will be washed and put into a PCR tube for a week; then, embryologists annotate them to determine morphological assessment and morphokinetic parameters using Time-Lapse Microscopy. The chi-square test was used to analyse bivariate variables.

Results: One hundred twenty four samples were collected on day 5 of patients undergoing the IVF procedure. 50.8% of the samples were aneuploid chromosomes, and 49.2% were euploid. The morphokinetic characteristics median was 3.86 fold. It was found that expansion grade, time to pro-nuclear fading, and time to the synchrony of the third cell cycle were significantly associated with euploid status (p = =0.000; 0.041 and 0.036).

Conclusion: The expansion grade has been proven as the most influential component for accurately predicting the ploidy status of embryos."

"Latar Belakang: DNA bebas dalam medium kultur embrio dan kemajuan pemodelan berbasis kecerdasan buatan berpotensi menjadi modalitas uji genetik yang non-invasif. Saat ini, tidak diketahui apakah DNA tersebut dilepaskan oleh sel embrio euploid atau aneuploid, sehingga melemahkan dasar keilmuan penggunaannya. Penelitian ini bertujuan untuk mengetahui sel sumber embrio pelepas DNA bebas dalam medium kultur, validasi potensi klinis penggunaan DNA bebas untuk skrining status ploidi embrio pasien Fertilisasi In-Vitro (FIV), dan konstruksi model pembelajaran mendalam menggunakan gambar embrio tersegmentasi untuk deteksi status ploidi embrio.Metode: Penelitian ini terbagi dalam dua desain penelitian yaitu eksperimental in-vitro menggunakan embrio hewan model dan observasi kohort menggunakan 28 sampel medium kultur embrio dari 21 pasien program FIV di Klinik Morula IVF Jakarta, periode September 2022–Januari 2023. Konstruksi model pembelajaran mendalam menggunakan gambar embrio pasien FIV yang menjalani program bayi tabung periode Januari 2021– Juni 2023. Deteksi sel embrio sumber pelepas DNA bebas dilakukan dengan memapar salah satu embrio (galur DDY atau C57BL) dengan reversin untuk memperoleh blastomer pembawa sel-sel aneuploid. Embrio kontrol dikultur bersamaan tanpa reversin sebagai pembawa sel-sel blastomer euploid. Agregasi membentuk embrio mosaik dilakukan antara embrio pembawa blastomer aneuploid (perlakuan) dan embrio pembawa blastomer euploid (kontrol). Polimorfisme gen GABRA2 antara galur DDY (alel wildtype) dan C57BL (alel delesi) mejadi alel target yang dikuantifikasi dengan metode qPCR. Empat jenis sampel dibuat sebagai berikut: medium kultur tanpa embrio, medium kultur embrio agregasi tanpa pemaparan reversin, rev-DDY, rev-C57BL. Embrio mosaik diwarnai dengan marka apoptosis untuk deteksi mekanisme pelepasan DNA bebas. Analisis status ploidi embrio menggunakan medium kultur embrio pasien FIV dilakukan dengan metode sekuensing. Konstruksi model pembelajaran mendalam menggunakan gambar embrio tersegmentasi yang dipotong urut selama 10 jam sebelum proses biopsi. Variabel yang diamati dalam penelitian adalah konsentrasi alel delesi dan wildtype gen GABRA2, jumlah sel terwarnai marka apoptosis, Pada sampel medium kultur embrio manusia, keberhasilan amplifikasi dan interpretasi hasil sekuensing, serta tingkat kesesuaian uji antara DNA bebas dengan biopsi trofoblas dianalisis. Kemampuan prediksi model berbasis kecerdasan buatan dinilai dengan akurasi dan loss. Analisis data penelitian dan konstruksi model pembelajaran mendalam menggunakan perangkat lunak SPPS versi 21, OpenEpi. pyhton.Hasil: Sebanyak 0,08 ng/reaksi alel wildtype ditemukan pada embrio mosaik dengan pemaparan reversin pada blastomer embrio DDY (rev-DDY, pembawa sel-sel aneuploid) dan 0,01 ng/reaksi alel delesi ditemukan pada embrio mosaik dengan pemaparan reversin pada blastomer embrio C57BL (rev-C57BL, pembawa sel-sel aneuploid). Median jumlah sel embrio terwarnai marka apoptosis antara ketiga group embrio (agregasi kontrol, rev- DDY dan rev-C57BL) tidak berbeda bermakna (nilai p = 0,95 untuk pewarnaan late apoptosis (propidium iodide) dan p = 0,42 untuk early apoptosis (Ann-V) menandakan adanya proses koreksi sel pada kedua group embrio mosaik selama masa perkembangan pra-implantasi. Keberhasilan amplifikasi DNA bebas medium kultur embrio manusia dalah 100%, dengan nilai interpretasi 92,8% (26/28). Nilai kesesuaian DNA bebas dengan biopsi trofoblas adalah rendah sebesar 65,4% (17/26) dengan kesesuaian kromosom seks adalah 61,5% (16/26). Sepuluh dari 11 embrio XY pada biopsi trofoblas terdeteksi XX pada DNA bebas. Seluruh model pembelajaran mendalam mengalami peningkatan akurasi menggunakan gambar embrio tersegmentasi dengan algoritma InceptionV3 mencapai akurasi tertinggi sebesar 0,67 dengan nilai loss sebesar 1,4.Kesimpulan: Sel embrio anueploid adalah sel sember pelepas DNA bebas medium kultur embrio pada embrio mosaik hewan coba mencit yang dilepaskan melalui mekanisme apoptosis. Embrio masik tersebut diperkirakan melakukan self-correction dengan mengeksklusi sel-sel aneploid untuk mempertahankan euploiditasnya. Rendahnya tingkat kesesuaian antara DNA bebas dengan biopsi trofoblas disebabbkan oleh adanya kontaminasi maternal yang ditandai dengan perubahaan koromosm seks yang signifikan. Penggunaan gambar blastosis tersegmentasi meningkatkan akurasi model prediksi pembelajaran mendalam.

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Background: Cell-free DNA and advanced artificial intelligence-based modeling uphold the potential of a non-invasive approach to determining embryo ploidy status. The specific embryonic cells (whether euploid or aneuploid) that release cell-free DNA are largely unknown, causing a weak scientific basis for its use. This study aimed to identify the source of embryonic cells releasing cell-free DNA in culture media, validate the clinical potential of using cell-free DNA to screen embryo ploidy status in an in-vitro fertilization (IVF) program and develop a deep learning model using segmented embryo images to detect embryo ploidy status.

Materials and Methods: This study employed two research designs including an in-vitro experimental study using animal model embryos and an observational cohort study using 28 samples of spent embryo culture media from 21 patients undergoing IVF program at Morula IVF Clinic Jakarta (September 2022 to January 2023). A deep learning model was constructed using images of embryos from IVF patients who participated in IVF program from January 2021 to June 2023. Detection of the source embryonic cells releasing cell-free DNA was achieved by exposing embryos (DDY or C57BL strains) to reversine to induce the formation of blastomeres carrying aneuploid cells. Control embryos were cultured simultaneously without reversine to serve as the source of euploid blastomeres. Mosaic embryo aggregation was performed by combining embryos carrying aneuploid blastomeres (treatment) with those carrying euploid blastomeres (control). The GABRA2 gene polymorphism between the DDY strain (wildtype allele) and the C57BL strain (deletion allele) was the target allele quantified using qPCR. Four types of samples were prepared: culture medium without embryos, culture medium of aggregated embryos without reversine exposure, rev-DDY, and rev-C57BL. Mosaic embryos were stained with an apoptosis marker to detect the mechanism of cell-free DNA release. The ploidy status of embryos using spent embryo culture media from IVF patients was determined using sequencing methods. The deep learning model was constructed using segmented images of embryos captured over 10 hours before the biopsy process. The variables observed in the study included the concentration of deletion and wildtype alleles of the GABRA2 gene, the number of cells stained with apoptosis markers, the success rate of amplification and interpretation of sequencing results from human spent embryo culture medium samples, and the concordance rate between cell-free DNA and trophectoderm biopsy analysis. The predictive ability of the artificial intelligence-based model was evaluated using accuracy and loss metrics. Data analysis and deep learning model construction were performed using SPSS version 21, OpenEpi, and Python.

Results: A total of 0.08 ng/reaction of the wildtype allele was detected in the culture media sample of mosaic embryos exposed to reversine in DDY embryo blastomeres (rev- DDY, carrying aneuploid cells), and 0.01 ng/reaction of the deletion allele was found in the sample exposed to reversine in C57BL embryo blastomeres (rev-C57BL, carrying aneuploid cells). The median number of embryonic cells stained with apoptosis markers among the three groups of embryos (control aggregation, rev-DDY, and rev-C57BL) did not differ significantly (p = 0.95 for late apoptosis staining with propidium iodide and p = 0.42 for early apoptosis with Annexin V), indicating the presence of cell correction processes in both groups of mosaic embryos during pre-implantation development. The success rate of cell-free DNA amplification in human spent embryo culture media was 100%, with an interpretability of 92.8% (26/28). The concordance between cell-free DNA and trophectoderm biopsy was low at 65.4% (17/26), with sex chromosome concordance at 61.5% (16/26). Ten out of eleven XY embryos from the trophectoderm biopsy were detected as XX in cell-free DNA analysis. All deep learning models showed improved accuracy using segmented embryo images with the InceptionV3 algorithm, achieving the highest accuracy of 0.67 with a loss of 1.4.

Conclusion: Aneuploid embryonic cells were identified as the source releasing cell-free DNA in culture media during embryo animal model experiments, releasing DNA through an apoptotic mechanism. These mosaic embryos were expected to activate embryonic cell correction mechanisms by excluding aneuploid cells to maintain their euploidy. The low concordance rate between cell-free DNA and trophectoderm biopsy was attributed to maternal contamination, as indicated by significant changes in sex chromosomes. The use of segmented blastocyst images improved the model's accuracy.

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Latar Belakang: Prosedur transfer embrio merupakan salah satu langkah pada teknologi reproduksi berbantu, dapat dilakukan transfer embrio beku atau embrio segar. Kemanan teknologi ini masih menjadi perhatian. Sehingga penting untuk mengetahui pengaruhnya terhadap luaran dalam hal ini tumbuh kembang anak.

Tujuan: Penelitian ini bertujuan untuk melihat hubungan transfer embrio beku dibandingkan embrio segar terhadap tumbuh kembang anak usia 0-3 tahun.

Metode: Metode penelitian ini adalah analitik komparatif dengan desain penelitian cross sectional, membandingkan tumbuh kembang anak hasil FIV dengan transfer embrio beku dibandingakan embrio segar. Pertumbuhan menggunakan parameter berdasarkan WHO Child Growth Standards 2006 atau WHO Anthro 2006. Sedangkan perkembangan menggunakan Kuesioner Praskrining Perkembangan (KPSP).

Hasil: Dari 2 kelompok subjek penelitian anak hasil FIV dengan transfer embrio beku (n=30) dibandingkan dengan embrio segar (n=30), tidak ada perbedaan pertumbuhan dan perkembangan. Nilai OR sebesar 0,64 (95% CI: 0,10-4,15) menunjukkan tidak ada perbedaan risiko gangguan gizi pada FIV dengan transfer embrio segar dibandingkan dengan embrio beku. Nilai OR sebesar 0,36 (0,06-2,01) menunjukkan tidak ada perbedaan risiko anak perawakan pendek pada FIV dengan transfer embrio segar dibandingkan dengan embrio beku. Anak FIV dengan transfer embrio beku memiliki risiko lebih rendah untuk mengalami BBLR dibandingkan kelompok embrio segar dengan OR sebesar 0,17 (95% CI: 0,03-0,85). Semua anak, baik pada kelompok embrio segar dan embrio beku, memiliki lingkar kepala dan perkembangan yang normal.

Kesimpulan: Tidak ada perbedaan pertumbuhan dan perkembangan anak FIV hasil transfer embrio beku dibandingkan dengan embrio segar. Transfer embrio beku menurunkan risiko bayi lahir BBLR.

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Background: Embryo transfer procedure is one step in assisted reproduction technology, it can be done frozen or fresh embryo transfer. This technological security is still a concern. So it is important to know the effect on outcomes in this case the growth and development of children.

Objective: This study aims to find out correlation of frozen embryo transfer versus fresh embryo on the growth and development of children aged 0-3 years.

Methods: This research method is comparative analytic with cross sectional research design, comparing the growth and development of children resulting from FIV with frozen embryo transfer compared to fresh embryo. For the growth, we use parameters based on the WHO Child Growth Standards 2006 or WHO Anthro 2006. While the development using KPSP (Pre-Screening Developmental Questionnaire).

Results: From the 2 groups of child research subjects frozen embryo transfer (n = 30) compared with fresh embryo (n = 30), there were no differences in growth and development. OR value of 0.64 (95% CI: 0.10-4.15) shows no difference in the risk of nutritional disorders in IVF with fresh embryo transfer compared with frozen embryo. OR value of 0.36 (0.06-2.01) indicates there is no difference in the risk of short stature in IVF with embrio segar transfer compared with frozen embryo. IVF children with frozen embryo transfer had a lower risk of developing low birth weight compared to the fresh embryo group with an OR of 0.17 (95% CI: 0.03-0.85). All children, both in the fresh and frozen embryos, have normal head circumference and development.

Conclusions: There was no difference in the growth and development of IVF children resulting from frozen embryo transfer compared with fresh embryo. The risk of low birth weight infants was lower in frozen embryo transfer.

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"ABSTRAKPersepsi tentang kekayaan media (media richness), penerimaan pengguna (user acceptance) terhadap teknologi dan kehadiran bersama sosial (social copresence) merupakan tiga konsep teori yang melihat dari sisi-sisi yang berbeda terhadap sebuah teknologi komunikasi. Ketiganya diharapkan mampu membaca perkembangan teknologi seperti video converence untuk mempunyai nuansa sosial berupa keterhubungan dengan sesamanya dalam interaksi termediasi dengan kekayaan dan penerimaan pengguna terhadapnya.Penelitian ini menemukan bahwa persepsi responden terhadap kekayaan dan penerimaan pengguna video conference cukup tinggi. Sedangkan, kehadiran sosial bersama dalam komunikasi video conference berada ditingkat persepsi sedang. Ketika kekayaan media dan penerimaan pengguna dihubungkan ditemukan korelasi sedang dengan kontribusi signifikan. Hal yang sama juga ketika dilakukan terhadap kekayaan media dan penerimaan pengguna yang menjadi variabel independen terhadap kehadiran bersama sosial sebagai variabel dependen. Hubungan yang ditemukan adalah moderate dan kontribusi signifikan diberikan dua variabel independen tersebut kepada variabel dependen. Meskipun demikian dapat simpulkan bahwa semakin tinggi kekayaan media dan penerimaan pengguna maka semakin tinggi kehadiran bersama sosial dalam komunikasi bermedia video conference.

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ABSTRACTMedia richness, technology user acceptance and social copresence are three theoretical concepts from different sides towards a communications technology. All three are expected to be able to predict the development of technologies such as video converence; the development of technologies that has the nuances a social connectedness with each other in interaction mediated by the richness and user acceptance.This study found that video converence been perceived as rich media and has received its users. As well as with social copresence, it has been perceived communication users, although not as high as the previous two variables. As independent variables media richness and user acceptance when performed test with multiple regression on social presence, relationships were found moderate and significant contribution. Nevertheless, concluded when the technology has been perceived as a rich media and has been accepted by the users, the higher the social copresence."