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Ditemukan 18 dokumen yang sesuai dengan query
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Novita Rina Antarsih
"ABSTRAK
LATAR BELAKANG: Laki-laki dengan penuaan pada umumnya mengalami
penurunan kualitas hidup dan infertilitas, penyebabnya berkaitan dengan degenerasi
sel Leydig akibat akumulasi stres oksidatif sehingga terjadi penurunan kadar
testosteron. Daun Enhalus acoroides dilaporkan mengandung antioksidan yang dapat
menangkal radikal bebas dan fitosterol yang dapat diubah menjadi testosteron.
Penelitian ini dilakukan untuk mengetahui efek ekstrak etil asetat daun lamun
[Enhalus acoroides (L.f.) Royle] terhadap analisis semen, morfologi sel Leydig, dan
stres oksidatif mencit jantan tua
BAHAN DAN CARA KERJA: Sampel berjumlah 32 ekor mencit jantan galur DDY
yang diberikan ekstrak daun Enhalus acoroides selama 14 hari. Mencit dibagi dalam
8 kelompok perlakuan masing masing terdiri dari 4 kali ulangan yang terdiri dari
DK1 = dewasa kontrol 1 (mencit dewasa tanpa perlakuan); DK2=dewasa kontrol 2
(mencit dewasa minyak zaitun); DP1=dewasa perlakuan 1 (mencit dewasa ekstrak 25
mg/KgBB); DP2=dewasa perlakuan 2 (mencit dewasa ekstrak 50 mg/KgBB);
TK1=tua kontrol 1 (mencit tua tanpa perlakuan); TK2=tua kontrol 2 (mencit tua
minyak zaitun); TP1=tua perlakuan 1 (mencit tua ekstrak 25 mg/KgBB); TP2=tua
perlakuan 2 (mencit tua ekstrak 50 mg/KgBB).
HASIL: Peningkatan motilitas dan viabilitas spermatozoa mencit tua pada dosis 50
mg/KgBB, peningkatan morfologi spermatozoa normal pada mencit tua dengan dosis
25mg/KgBB dan penurunan konsentrasi spermatozoa mencit tua pada dosis 25
mg/KgBB. Adanya peningkatan sel Leydig tua pada dosis 25 mg/KgBB
KESIMPULAN: Pemberian ekstrak daun Enhalus acoroides meningkatkan kualitas
spermatozoa. Namun tidak ada perbedaan dalam penundaan degenerasi sel Leydig
dewasa serta tidak ada perbedaan pada tingkat stres oksidatif

ABSTRACT
Background: The men aging process occurs generally due to decreased quality of
life and infertility, the cause associated with Leydig cell degeneration due to
accumulation of oxidative stress resulting in a decrease in testosterone levels. At this
time the administration of synthetic antioxidants is limited because of the risk of
cancer, on the other hand administration of synthetic testosterone cause the cessation
of endogenous testosterone production and long-term risk. Lamun leaves Enhalus
acoroides reported to contain antioxidants which can counteract free radicals and
phytosterols that can be converted into testosterone. Therefore, this study was
conducted to determine effect of ethyl acetate extract of lamun leaves Enhalus
acoroides on semen analysis, Leydig cell morphology, and oxidative stress in old
male mice
Methods: The sample amounted to 32 mice (mus Musculus) strain DDY male given
extract of the leaves of seagrass for 14 days. Mice were divided into eight treatment
groups each consisting of four replications. Four groups are composed of adult mice
which consist of DK1=adult control 1, DK2= adult control 2 (adult mice with olive
oil), DP1= adult treatment 1 (extract 25 mg/KgBW), DP2=adult treatment 2 (extract
50 mg/KgBW). 4 groups male older mice consist of TK1 = old control 1, TK2= old
control 2 (old mice with olive oil), TP1= old treatment 1 (extract 25 mg/KgBW),
TP2= old treatment 2 (extract 50 mg/KgBW).
Results: An increased motility and viability of sperm at doses of 50 mg/KgBW,
increased morphology of sperm normally at doses of 25 mg/KgBW, and decreased
the concentration of sperm at doses of 25 mg/KgBW. An increased in aged Leydig
cells at doses 25 mg/KgBW
Conclusion: The extract of lamun leaves can qualitatively improve sperm, however
not significant in delays degeneration of adult Leydig cells and not significant
decreased levels of oxidative stress in old male mice"
2016
T-Pdf
UI - Tesis Membership  Universitas Indonesia Library
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Hosea, Fransiscus Nikodemus
"ABSTRAK
Latar belakang: Cancer stem cells CSC merupakan sel kanker yang memiliki karakteristik sel punca. Kepuncaan CSC berperan dalam menjaga kestabilan jaringan tumor, sifat resisten terhadap terapi dan memicu kejadian relaps. Kepuncaan CSC diduga dapat ditarget secara non-protein specific dengan mengganggu berbagai jalur pensinyalan yang berperan dalam mempertahankan kepuncaan sekaligus menghambat microenvironment. Proses glikosilasi protein berperan dalam kestabilan, transportasi, dan maturasi protein. Glukosamin diduga dapat berpengaruh terhadap interaksi CSC dengan Cancer-associated fibroblast CAF melalui penghambatan glikosilasi. CAF merupakan sel fibroblast di microenvironment yang direkrut oleh sel kanker ke jaringan tumor. Penelitian ini bertujuan untuk menganalisis efek glukosamin terhadap penurunan sifat kepuncaan sel punca kanker payudara ALDH dan hubungannya dengan penanda CAF pada stroma.Metode: Sel punca kanker payudara ALDH ditumbuhkan dalam medium yang mengandung glukosamin selama 24 jam. Conditioned medium yang diperoleh dari sel ALDH CSC-CM atau sel ALDH yang diberi perlakuan glukosamin CSC-CM G digunakan untuk menumbuhkan sel stroma payudara selama 48 jam. Nilai ekspresi gen relatif ALDH1, Oct-4, dan IGF-1 pada CSC, dan gen penanda CAF, ?-SMA dan FAP pada sel stroma diperiksa menggunakan Quantitative Real-Time Polymerase Chain Reaction qPCR .Hasil: Perlakuan glukosamin konsentrasi 4 mM selama 24 jam menyebabkan penurunan ekspresi ALDH1, gen marker CSC pada sel ALDH dan ekspresi Oct-4, gen karakteristik kepuncaan. Ekspresi gen Oct-4 tetap menurun walaupun glukosamin telah dikeluarkan dari medium kultur. Conditioned-medium CM yang diperoleh dari sel punca kanker payudara ALDH dapat memicu peningkatan ekspresi ?-SMA pada sel stroma. Peningkatan ekspresi gen ?-SMA dan FAP pada sel stroma yang diinduksi oleh CSC-CM dapat ditekan oleh CSC-CM G.Kesimpulan: Penghambatan N-glikosilasi oleh glukosamin menyebabkan penurunan ekspresi gen penanda CSC dan gen karakteristik kepuncaan pada sel punca kanker payudara ALDH Perlakuan glukosamin dapat mempengaruhi pensinyalan parakrin CSC-CAF melalui ekspresi gen penanda CAF.

ABSTRACT
Background Cancer stem cells CSC is known as a subpopulation of cancer cells with stem cell like characteristics. CSC stemness is responsible for tumor maintenance and relapse. A therapeutic agent that is non protein specific yet intensely uptaken by CSC can be a good approach to disrupt the coordinated network in stemness maintenance and simultaneously affect corrupt stromal cells in tumor microenvironment. Glucosamine inhibits post translational glycosylation, essential for sustaining protein stability, trafficking, and maturation. Cancer associated fibroblast CAF differentiation and recruitment to tumor microenvironment is induced by CSC derived growth factors. This study investigated the effect of glucosamine on stemness in ALDH breast cancer stem cell and its ability to interact with stromal cells.Methods ALDH breast cancer stem cell were cultured in medium containing glucosamine for 24 h. Breast stromal cells were culture in conditioned medium obtained from ALDH cells CSC CM or glucosamine treated ALDH cells CSC CM G . Relative expression of ALDH1, Oct 4, and IGF 1 gene in CSC, and SMA and FAP gene in stromal cells were analyzed using Quantitative Real Time Polymerase Chain Reaction qPCR .Results Upon treatment with 4 mM glucosamine for 24 h, ALDH breast cancer stem cell showed significant decrease in expression of ALDH1, a marker of breast cancer stem cell. Under similar condition, Oct 4 stemness gene was also found to be downregulated. Downregulation of Oct 4 expression was maintained after removal of glucosamine. Stromal cells showed increased expression of SMA myofibroblast marker upon cultured in CSC CM. This upregulation was cancelled in CSC CM G exposed stromal cells.Conclusion N linked glycosylation inhibition by glucosamine results in downregulation of stem cell marker and stem cell gene expression in ALDH breast cancer stem cell. CSC rsquo s stemness influences paracrine interaction between CSC dan CAF via expression of CAF marker in stromal cells "
2017
T55617
UI - Tesis Membership  Universitas Indonesia Library
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Salinah
"ABSTRAK
Latar Belakang: Kanker endometrioid merupakan keganasan ginekologi yang sering terjadi pada wanita. Hewan coba kanker endometrioid dengan karakteristik yang sesuai manusia diperlukan untuk memahami karsinogenesis secara molekular dan pengembangan terapi baru. p16INK4amerupakan gen supresor tumor yang ekspresinya menurun pada kanker endometrioid dan memiliki nilai prognostik. Ekspresi protein ini pada hewan coba diteliti untuk menilai kesesuaian dengan kanker endometrioid pada manusiaMetode: 15 blok parafin yang terdiri dari 5 jaringan uterus tikus normal, 5 jaringan uterus hiperlasia atipia dan 5 jaringan kanker endometrioid dilakukan pulasan imunohistokimia dan dinilai intesitas ekspresi p16INK4a dengan IHC profiler Image-J.Hasil dan Diskusi:Skor ekspresi p16INK4a meningkat bermakna pada kelompok hiperplasia dibandingkan dengan ekspresi pada kelompok normal p = 0,003 dan menurun bermakna pada kelompok kanker endometrioid dibandingkan kelompok normal p = 0,01 . Ekspresi berlebihan dari gen supresor tumor pada kelompok hiperplasia dapat merupakan salah satu mekanisme sel untuk mengurangi peningkatan proliferasi.Kesimpulan: Ekspresi tertinggi p16INK4a ditemukan pada hiperplasia endometrium dan menunjukkan ekspresi menurun hingga negatif pada kanker endometrioid yang sesuai dengan gambaran ekspresi pada manusia.

ABSTRACT
BackgroundEndometrioid cancer is one of the most common cancer in female. Animal model that representative to human endometrioid cancer is needed to develop new therapy and understanding molecular carcinogenesis. Decrease expression of p16INK4a, a tumor suppressor gene, is found in endometrioid cancer and has prognostic value. Expression of this protein in animal model was studied to evaluate its similarity with human endometrioid cancer.Method15 paraffin blocks of rat consist of 5 normal uterine tissues, 5 atypical hyperplasia of uterine tissues, and 5 endometrioid cancer tissues were stained for immunohistochemistry analysis of p16INK4a expression by using IHC profiler Image J software.Result and DiscussionExpression score of p16INK4a was significantly increase in hyperplasia group compared to normal group p 0,003 and decrease significantly in endometrioid cancer group compared to normal group p 0,01 . Excessive expression of p16INK4a in hyperplasia group is one of cells mechanism to reduce proliferation activity.ConclusionHighest expression of p16INK4a was found in hyperplasia group and decrease to negative expression in endometrioid cancer group. These patterns was similar to human endometrioid cancer."
2017
SP-Pdf
UI - Tugas Akhir  Universitas Indonesia Library
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Endrico Xavierees Tungka
"ABSTRAK
Latar belakang: Preeklampsia merupakan salah satu penyebab terbesar kematian ibu di Indonesia. Meskipun menjadi permasalahan kesehatan namun pathogenesis yang terjadi pada preeklampsia masih merupakan misteri. Autofagi merupakan salah satu proses yang dihubungkan dengan pathogenesis preeklampsia. Sebagai mekanisme sel dalam menghadapi suasana kurang nutrisi, autofagi menjadi faktor penting yang diperhitungkan dalam penyakit preeklampsia. Penelitian ini bertujuan melihat perbedaan protein-protein petanda autofagi secara khusus LC3 dan p62 pada plasenta normal dan preeklampsia serta melihat hubungannya.
Metode: Penelitian ini berdisain potong lintang, dengan pengambilan sampel consecutive sampling. Digunakan 50 jaringan tengah plasenta preeklampsia: diperoleh dari RS Cipto Mangunkusumo = 26 dengan usia kehamilan dibawah 34 minggu, 24 sampel kehamilan normal dari RS Budi Kemuliaan. Pengukuran ekpresi relatif mRNA menggunakan RT-PCR, SYBR No ROX dan rumus Livak, dan pengukuran kadar protein menggunakan kit ELISA untuk p62 dan LC3A. Analisis statistik menggunakan non parametrik karena distribusi data tidak normal.
Hasil: Konsentrasi protein LC3 plasenta preeklampsia lebih tinggi bermakna dari plasenta normal, p=0,001*. Sedangkan ekspresi relatif mRNA LC3 preeklampsia lebih tinggi dari normal namun tidak bermakna, p=0,5. Konsentrasi protein p62 preeklampsia lebih rendah dari normal namun tidak bermakna, p = 0,408. Sedangkan ekspresi relatif mRNA p62 preeklampsia lebih rendah dan bermakna terhadap normal, p = 0,006*.
Kesimpulan: Penelitian ini menunjukkan bahwa autofagi (LC3A) lebih tinggi pada plasenta preeklampsia dibandingkan dengan normal.

ABSTRACT
Background: Preeclampsia is one of the biggest causes of maternal mortality in Indonesia. Although it is a health problem, the pathogenesis that occurs preeclampsia still a mystery. Autophagy is one of the processes associated with the pathogenesis of preeclampsia. As a cell mechanism in case of a lack of nutrition, autophagy is an important factor that is considered in preeclampsia. This study aims to look at differences in autophagy protein markers specifically p62 and LC3 in the normal placenta compared with preeclampsia and see the correlation.
Methods: Using cross sectional method and consecutive sampling method, 50 midportion of women placenta tissues were obtained consist of 26 placentas of preeclampsia women from Cipto Mangunkusumo National Hospital and 24 placentas of normal pregnancy were obtained from Budi Kemuliaan Hospital. Relative expression mRNA measured using RT-PCR, SYBR No ROX and Livak method, while LC3 and p62 protein level meassured by ELISA kit. In cause of abnormal data distriburion, non parametric statistical of Mann Whitney test were used.
Results: Protein LC3 concentration of preeclampsia significantly higher than normal placenta p=0,001*. While relative expression of LC3 mRNA of preeclampsia not significantly higher than normal placenta, p=0,5. Protein p62 concentration of preeclampsia not significantly lower than normal placenta, p = 0,408. While relative expression of p62 mRNA significantly lower than normal placenta, p = 0,006*.
Conclusion: this study shows autophagy (LC3A) in preeclampsia is higher compared to normal."
2019
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UI - Tesis Membership  Universitas Indonesia Library
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Debby Aditya
"Latar belakang: Platelet rich plasma (PRP) merupakan faktor pertumbuhan yang mendukung proliferasi, diferensiasi sel punca in vitro. PRP diyakini dapat digunakan sebagai alternatif pengganti dari fetal bovine serum (FBS) karena bersifat xenofree. Tujuan dari penelitian ini adalah untuk mengetahui efisiensi PRP dalam mendukung proliferasi dan diferensiasi SSCs dan menganalisis korelasi antara tingkat spermatogenesis melalui penilaian Johnson dengan ekspresi gen potensi proliferasi (PLZF, OCT4) dan diferensiasi (CKIT) SSCs.
Metode: SSCs diisolasi dari tiga sisa jaringan biopsi testis hasil ektraksi spermatozoa (TESA/TESE) dari pasien azoospermia. Hasil isolasi sel dikultur pada medium DMEM-F12 dengan faktor pertumbuhan spesifik (GDNF, bFGF, EGF) yang selanjutnya dibedakan menjadi dua kelompok medium kultur berdasarkan penambahan PRP atau FBS. Hasil sel kultur dianalisis ekspresinya terhadap gen PLZF, OCT4, dan CKIT dengan qRT-PCR. Tingkat spermatogenesis dianalisis dengan penilaian Johnson melalui pemeriksaan histologi.
Hasil: PLZF, OCT4, dan CKIT diekspresikan oleh hasil sel kultur pada kelompok PRP dan FBS, namun tidak bermakna signifikan. Tidak terdapat korelasi antara tingkat spermatogenesis dengan ekspresi gen potensi proliferasi (PLZF dan OCT4) dan diferensiasi (CKIT) SSCs pada kelompok PRP dan FBS.
Kesimpulan: PRP mampu mendukung potensi proliferasi dan diferensiasi SSCs in vitro serta dapat menjadi alternatif pengganti FBS.

Background: Platelet rich plasma (PRP), performing as an alternative candidate to fetal bovine serum (FBS), is a concentrate containing growth factors, support proliferation and differentiation of stem cells in vitro. The objective of this work was to determine the efficiency of PRP in supporting SSCs proliferation and differentiation and assessed the correlation between the level of spermatogenesis through scoring Johnson toward the proliferation and differentiation of SSCs in vitro.
Methods: SSCs were isolated from three of surplus testicular tissue by sperm extraction (TESA/TESE) from azoospermic patients, then SSCs were cultured into DMEM-F12 with growth factors (GDNF, bFGF, EGF), further categorized into PRP and FBS groups. The resulting cell was quantitative analyzed by qRT-PCR towards the expression of PLZF, OCT4 and CKIT. The level of spermatogenesis was observed by scoring Johnson from histology measurement.
Results: The qRT-PCR analysis revealed the expression of PLZF, OCT4 and CKIT in the resulting cell culture. The difference was statistically insignificant among PRP and FBS. There was no correlation between the potency of proliferation (PLZF and OCT4) and differentiation (CKIT) of SSCs toward the level of spermatogenesis in both groups.
Conclusion: PRP could support the maintenance of proliferation and differentiation SSCs in vitro and could be developed as an alternative supplementation of FBS.
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Depok: Fakultas Kedokteran Universitas Indonesia, 2019
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UI - Tesis Membership  Universitas Indonesia Library
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Luthfiana Hardianingtyas
"Kriopreservasi adalah salah satu prosedur yang termasuk ke dalam serangkaian TRB. Prosedur ini telah secara rutin diaplikasikan untuk penggunaan spermatozoa di masa depan. Namun, pada praktiknya, spermatozoa yang dikriopreservasi akan mengalami penurunan kualitas terutama pada kemampuan motilitasnya, hingga menyebabkan kematian spermatozoa. Penurunan pada parameter spermatozoa pasca thawing diyakini paling utama disebabkan karena produksi berlebih dari ROS akibat kejutan suhu dan osmotik selama proses pembekuan dan pencairan. Pada penelitian ini, dilakukan suplementasi antioksidan dengan vitamin C, ALA, dan pentoksifilin pada medium kriopreservasi untuk dianalisis pasca thawing terhadap beberapa parameter di antaranya kualitas spermatozoa, kadar MDA, Indeks Fragmentasi DNA (IFD), dan apoptosis spermatozoa melalui ekspresi caspase-3 pada subyek normozoospermia dan non-normozoospermia. Hasil menunjukkan secara umum antioksidan vitamin C, ALA, dan pentoksifilin cenderung meningkatkan kualitas spermatozoa pasca thawing dengan meningkatkan motilitas, cryosurvival dan viability rate. Secara signifikan, peningkatan kualitas spermatozoa pasca thawing ditunjukkan oleh pentoksifilin dengan meningkatkan motilitas pasca thawing dan cryosurvival rate. Ketiga antioksidan cenderung menurunkan konsentrasi MDA dan apoptosis, namun hanya vitamin C yang menurunkan IFD.

Cryopreservation is one of the procedures included in a series of TRB procedures. This procedure has been routinely applied for future use of spermatozoa. However, practically, cryopreserved spermatozoa will experience a decrease in quality, particularly in their motility ability, which in turn causing cell death. The decrease in post-thawing spermatozoa parameters is believed to be mainly due to the overproduction of ROS due to temperature and osmotic shock during freezing and thawing. In this study, antioxidant supplementation with vitamin C, ALA, and pentoxifylline was supplemented in cryopreservation medium and carried out for post-thawing analysis of several parameters including spermatozoa quality, MDA levels, DNA Fragmentation Index (DFI), and apoptosis through the activation of caspase-3 expression in normozoospermic and non-normozoospermic subject. The results showed that in general, the antioxidants included vitamin C, ALA, and pentoxifylline improved the quality of post-thawing spermatozoa by increasing motility, cryosurvival, and viability rate. The quality of spermatozoa post-thawing was significantly improved by pentoxifylline, which significantly improved motility and cryosurvival rate. The antioxidants reduced the concentration of MDA and apoptosis insignificantly, yet only vitamin C decreased the DFI."
Jakarta: Fakultas Kedokteran Universitas Indonesia, 2022
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UI - Tesis Membership  Universitas Indonesia Library
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Nur Irawati
"Diabetes melitus banyak dikaitkan dengan risiko tinggi aterosklerosis dan komplikasinya. Makrofag merupakan kunci dalam semua tahap aterosklerosis dan sudah diketahui berperan penting dalam patomekanisme penyakit metabolik dan kardiovaskuler. Makrofag menginternalisasi LDL teroksidasi melalui scavenger receptor seperti CD36. Makrofag juga mempunyai sistem transpor aktif seperti ABCA1 untuk eliminasi kolesterol dari makrofag ke akseptor ekstraseluler. Keterlibatan protein CD36 dan ABCA1 dalam mekanisme masuk dan keluarnya kolesterol pada makrofag diduga berhubungan dengan risiko pembentukan sel busa  sehingga diperlukan penelitian pola ekspresi CD36 dan ABCA1 serta ekspresi sitokin pro-inflamasi  IL-1b dan anti inflamasi IL-10 makrofag pada subyek non T2DM dan T2DM. Pengamatan dilakukan pada 11 subyek non T2DM dan 13 subyek T2DM. Disain penelitian menggunakan studi obervasional dan intervensi invitro. Monosit distimulasi menjadi makrofag menggunakan M-CSF. Tahap selanjutnya, makrofag dibagi dalam tiga perlakuan yaitu tanpa stimulasi, stimulasi LPS dan stimulasi ox-LDL. Ekspresi makrofag CD36 dan ABCA1 diukur  secara flowcytometri menggunakan alat BD FACSCanto II Flow Cytometer sedangkan ekspresi IL-1b dan IL-10 makrofag diukur  dengan multiplex immunoassay pada alat LuminexTM 200. Pada penelitian ini ditemukan adanya hubungan negatif rasio Trigliserida/HDL dengan ekspresi makrofag CD36-ABCA1+. Makrofag yang distimulasi ox-LDL menunjukkan perbedaan ekspresi CD36+ABCA1- pada subyek non T2DM dan T2DM yang tidak signifikan (p=0,12) sedangkan  ekspresi CD36-ABCA1+ menunjukkan perbedaan yang signifikan (p=0,04). Subyek non T2DM menunjukkan ekspresi CD36-ABCA1+ dominan tinggi (72.7%) sedangkan pada subyek T2DM dominan ekspresi rendah (59.2%). Makrofag yang distimulasi LPS dan ox-LDL menunjukkan perbedaan rasio IL-1b/IL-10  pada subyek non T2DM dan T2DM (p=0.05; p=0.02). Subyek T2DM menunjukkan rasio IL-1b/IL-10 lebih tinggi dibandingkan non T2DM. Analisa hubungan rasio IL-1b/IL-10 dengan ekspresi makrofag CD36-ABCA1+ menunjukkan kecenderungan subyek dengan rasio IL-1b/IL-10 tinggi mempunyai ekspresi makrofag CD36-ABCA1+ rendah. Analisis juga menunjukkan 62% subyek T2DM menunjukkan eskpresi makrofag CD36- & ABCA1+ rendah disertai rasio IL-1b/IL-10 tinggi  dan hsCRP diatas nilai median sedangkan subyek non T2DM 91% menunjukkan ekspresi CD36-ABCA1+ tinggi dengan rasio IL-1b/IL-10 rendah dan hsCRP rendah.  Pada penelitian ini ditemukan adanya hubungan ekspresi makrofag CD36-ABCA1+ dan  rasio IL-1b/IL-10 terhadap hs-CRP yang merupakan penanda risiko penyakit kardiovaskuler.

Diabetes mellitus is associated with a high risk of atherosclerosis and its complications. Macrophages are key in all stages of atherosclerosis and are known to play an important role in the pathomechanism of metabolic and cardiovascular disease. Macrophages internalize oxidized LDL via scavenger receptors such as CD36. Macrophages also have active transport systems such as ABCA1 for elimination of cholesterol from macrophages to extracellular acceptors. The involvement of CD36 and ABCA1 proteins in the mechanism of entry and exit of cholesterol in macrophages is thought to be associated with the risk of foam cell formation, so it is necessary to study the expression patterns of CD36 and ABCA1 as well as the expression of the pro-inflammatory cytokine IL-1b and anti-inflammatory IL-10 in macrophages in non-T2DM subjects and T2DM. Observations were made on 11 non-T2DM subjects and 13 T2DM subjects. The research design used observational studies and in vitro interventions. Monocytes were stimulated to become macrophages using M-CSF. In the next stage, macrophages were divided into three treatments: no stimulation, LPS stimulation and ox-LDL stimulation. The expression of CD36 and ABCA1 macrophages was measured by flowcytometry using the BD FACSCanto II Flow Cytometer while the expression of IL-1b and IL-10 macrophages was measured by multiplex immunoassay on the LuminexTM 200. This study found a negative relationship between triglyceride/HDL ratio and expression of CD36-ABCA1+ macrophages. Ox-LDL stimulated macrophages showed insignificant differences in CD36+ABCA1- expression in non-T2DM and T2DM subjects (p=0.12) while CD36-ABCA1+ expression showed significant differences (p=0.04). Non-T2DM subjects showed high dominant CD36-ABCA1+ expression (72.7%) while T2DM subjects had low dominant expression (59.2%). The LPS and ox-LDL-stimulated macrophages showed different ratios of IL-1b/IL-10 in non-T2DM and T2DM subjects (p=0.05; p=0.02). T2DM subjects showed a higher IL-1b/IL-10 ratio than non-T2DM subjects. Analysis of the relationship between the IL-1b/IL-10 ratio and CD36-ABCA1+ macrophage expression showed a tendency for subjects with a high IL-1b/IL-10 ratio to have low CD36-ABCA1+ macrophage expression. The analysis also showed that 62% of T2DM subjects showed low expression of CD36- ABCA1+ macrophages with high IL-1b/IL-10 ratio and hsCRP above the median value, while 91% of non-T2DM subjects showed high CD36-ABCA1+ expression with IL-1b/IL-10  low and low hsCRP. In this study, it was found that there was a relationship between the expression of CD36-ABCA1+ macrophages and the ratio of IL-1b/IL-10 to hs-CRP which is a marker of cardiovascular disease risk."
Jakarta: Fakultas Kedokteran Universitas Indonesia, 2023
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UI - Tesis Membership  Universitas Indonesia Library
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Hendrik Kurniawan
"Latar Belakang : Kanker payudara merupakan salah satu penyebab kematian tertinggi akibat kanker pada wanita di Indonesia. Hal ini diantaranya disebabkan karena adanya resistensi terhadap terapi berlandaskan ROS seperti pada radioterapi maupun kemoterapi. Sel punca kanker payudara (cancer stem cells, CSCs) memiliki peran pada mekanisme resistensi ini. Penelitian terhadulu menunjukkan kemampuan CSCs untuk bertahan terhadap kondisi stress oksidatif pada pemberian rotenon. Karena itu, dalam penelitian ini dilakukan analisis terhadap faktor transkripsi NF-kB pada sel kanker payudara baik CSC maupun non CSC, terkait peran NF-kB dalam mempertahankan viabilitas sel kanker pada kondisi stress oksidatif.
Metode: Penelitian dilakukan pada sel punca kanker payudara manusia (CD24-/CD44+) maupun non sel punca (CD24-/CD44-) yang diberi H2O2 dengan konsentrasi 1.1µM, 11µM, dan 110µM dengan kontrol sel yang tidak diberi H2O2. Penilaian dilakukan terhadap parameter ekspresi mRNA NF-kB, dan viabilitas sel. Uji statistik dilakukan menggunakan IBM-SPSS dengan nilai α < 0.05.
Hasil: Pemberian H2O2 pada konsentrasi 11µM menunjukkan peningkatan yang signifikan pada ekspresi mRNA NFkB CSCs dibanding non CSCs (p<0.05). Sedangkan untuk hasil uji viabilitas pada seluruh konsentrasi H2O2 nampak bahwa CSCs mampu mempertahankan viabilitasnya dibandingkan dengan non CSCs yang mengalami penurunan viabilitas (p<0.05)..
Kesimpulan: Kondisi stres oksidatif akibat pemberiaan H2O2 dapat meningkatkan ekspresi mRNA NF-kB pada CSCs sehingga viabilitasnya tetap dapat dipertahankan.

Introduction: Breast cancer is one of the highest causes of death from cancer in women in Indonesia. This is partly due to the resistance to ROS-based therapies such as radiotherapy and chemotherapy. Breast cancer stem cells (cancer stem cells, CSCs) have a role in this resistance mechanism. Previous studies demonstrated the ability of CSC to survive oxidative stress conditions due to rotenone administration. Therefore, in this study an analysis was carried out on the transcription factor NF-kB in breast cancer cells, both CSCs and Non CSCs, related to the role of NF-kB in maintaining the survival of cancer cells under conditions of oxidative stress.
Methods: The study was conducted on human breast cancer stem cells (CD24-/CD44+) and non stem cells (CD24-/CD44-) which were given H2O2 at concentrations of 1.1µM, 11µM, and 110µM with control cells not given H2O2. Assessment was carried out on the parameters of NF-kB mRNA expression, and cell viability. Statistical tests were performed using IBM-SPSS with a value of α < 0.05.
Results: Administration of H2O2 at a concentration of 11µM showed a significant increase in the expression of NFk-B CSCs mRNA compared to non CSCs (p<0.05). As for the viability test results at all concentrations of H2O2 it appears that CSCs was able to maintain its viability compared to non CSCs which experienced a decrease in viability (p<0.05).
Conclusion: Conditions of oxidative stress due to administration of H2O2 can increase the expression of NF-kB mRNA in CSCs so that its viability can be maintained.
In this study, conditions of oxidative stress due to administration of H2O2 led to an increase in the expression of NF-kB mRNA in CSCs so that cell viability could be maintained.
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Jakarta: Fakultas Kedokteran Universitas Indonesia, 2014
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UI - Tesis Membership  Universitas Indonesia Library
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Rahmah Wati Utami
"Kriopreservasi sperma sebagai bagian dari prosedur rutin dalam program TRB untuk dapat memaksimalkan dan melestarikan sperma manusia. Namun, perubahan suhu yang cukup drastis selama proses kriopreservasi menyebabkan penurunan proporsi sperma fungsional. Pembentukan kristal es intraseluler menjadi pemicu utama kerusakan membran dan organel yang berakibat pada peningkatan stres osmotik maupun stres oksidatif. Upaya perbaikan kualitas sperma pasca kriopreservasi terus dikembangkan, terutama mengenai kombinasi krioprotektan/cryoprotectant agent (CPA) untuk meminimalisir pembentukan kristal es intraseluler. Dalam penelitian ini, sperma dipaparkan kombinasi CPA trehalosa dan gliserol dengan konsentrasi yang berbeda (P1-P9) dengan perbandingan kontrol (Kitazato) untuk dianalisis pada berbagai parameter kualitas sperma, kadar MDA, dan indeks fragmentasi DNA (IFD) post-thawing. Hasil analisis menunjukkan kelompok perlakuan P5 (Tre0.125M+Gly 6%) menghasilkan rata-rata motilitas progresif, morfologi, CSR dan viability rate post-thawing tertinggi. Seluruh kelompok perlakuan menunjukan perbedaan yang tidak signifikan (p>0.05) dengan kontrol dilihat dari parameter motilitas progresif, CSR, dan viability rate. Untuk uji HOS, kelompok perlakuan P6 (Tre0.125M+Gly8%) menghasilkan rata-rata HOS+ lebih tinggi dibanding kelompok perlakuan lainnya, namun kelompok tersebut berbeda signifikan dengan kontrol. Pada analisis MDA dan IFD, kelompok P5 juga menghasilkan rerata terendah dengan perbedaan yang tidak signifikan terhadap kontrol. Kombinasi CPA sebagai kandidat alternatif krioprotektan komersial Kitazato ialah kelompok P5 (Tre0.125M+Gly 6%).

Sperm cryopreservation is an essential procedure in the TRB program to maximize and preserve human sperm. Unfortunately, significant temperature changes during the cryopreservation process can reduce the proportion of functional sperm. The formation of intracellular ice crystals is the primary cause of damage to the membrane and organelles, leading to increased osmotic stress and oxidative stress. Ongoing efforts are being made to improve sperm quality after cryopreservation, particularly through the use of cryoprotectants or cryoprotectant agents (CPAs) to minimize the formation of intracellular ice crystals. In this study, we exposed sperm to different concentrations of a combination CPA trehalose and glycerol (P1-P9), and compared them to controls (Kitazato) after which sperm quality was measured based on several parameters; MDA levels, and post-thawing DNA fragmentation index (DFI). P5 treatment group (Tre 0.125M + Gly 6%) yielded the highest average post-thawing progressive motility, morphology, CSR, and viability rate. Meanwhile, no significant difference (p>0.05) was found in terms of progressive motility, CSR, and viability rate parameters. Futhermore, P6 treatment group (Tre 0.125M + Gly 8%) exhibited a higher average HOS+ than the other treatment groups, where only the P6, P4, P5, and P1 groups showed significant differences from the control (Kitazato) in the HOS test. In the MDA and IFD analyses, P5 group had the lowest average score and no significant difference from the control (Kitazato). CPA P5(Tre0.125M+Gly6%) can be an alternative to Kitazato's commercial CPA."
Jakarta: Fakultas Kedokteran Universitas Indonesia, 2023
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UI - Tesis Membership  Universitas Indonesia Library
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