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Hasil Pencarian

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Nanda Amelia Putri
"Latar Belakang Kerusakan lipid pada jaringan hati akibat proses peroksidasi oleh radikal bebas menghasilkan malondialdehid yang dapat digunakan sebagai parameter stres oksidatif. Berdasarkan penelitian terdahulu, Spirulina dikenal sebagai antioksidan alternatif untuk mengurangi radikal bebas. Penelitian ini akan mengetahui pengaruh pemberian Spirulina platensis terhadap kadar malondialdehid jaringan hati tikus berbagai kelompok usia. Metode Penelitian eksperimental dengan mengukur kadar malondialdehid sebagai pertanda terjadinya stres oksidatif pada 30 jaringan hati tikus wistar jantan yang berasal dari 6 kelompok, yaitu kelompok yang diberikan aquades berusia 12 minggu,18 minggu, dan 24 minggu, serta kelompok yang diberikan Spirulina platensis berusia 12 minggu, 18 minggu, dan 24 minggu. Kadar malondialdehid diukur dengan menggunakan metode TBARS. Hasil Rata – rata kadar malondialdehid pada kelompok tikus yang diberikan aquades tertinggi adalah kelompok usia 24 minggu (91,28 nmol/gram jaringan) dan terendah adalah kelompok usia 18 minggu (64,69 nmol/gram jaringan). Kadar malondialdehid setelah pemberian Spirulina platensis pada kelompok usia 12 minggu 0,96 kali lipat (p>0,05); usia 18 minggu 0,78 kali lipat (p<0,05); dan usia 24 minggu adalah 0,94 kali lipat (p<0,05) lebih rendah dibandingkan dengan kelompok yang diberikan aquades. Kesimpulan Terjadi penurunan kadar malondialdehid pada usia tikus 12, 18, dan 24 minggu yang diberikan Spirulina platensis dibandingkan dengan aquades, meskipun hanya bermakna pada kelompok usia 18 dan 24 minggu.

Introduction Lipid damage in liver tissue due peroxidation process by free radicals produces malondialdehyde that used as a parameter of oxidative stress. Based on previous research, Spirulina is known as an alternative antioxidant to reduce free radicals. This research will determine the effect of giving Spirulina platensis on malondialdehyde levels in liver tissue of mice of various age groups. Method Experimental research measuring malondialdehyde levels as a sign of oxidative stress in 30 rat liver tissues from 6 groups, namely the group given aquades aged 12 weeks, 18 weeks and 24 weeks, and the group given Spirulina platensis aged 12 weeks, 18 weeks, and 24 weeks. Malondialdehyde levels were measured using the TBARS method. Results The highest average level of malondialdehyde in mice that given aquades was the 24 weeks age group (91.28 nmol/mg tissue) and the lowest was the 18 weeks age group (64.69 nmol/mg tissue). Malondialdehyde levels after administration of Spirulina platensis in the 12 weeks age group 0.96 times (p>0.05); age 18 weeks 0.78 times (p<0.05); and age 24 weeks was 0.94-fold (p<0.05) lower than the group given aquades. Conclusion There was a decrease in malondialdehyde levels in mice aged 12, 18 and 24 weeks who were given Spirulina platensis compared to aquades, although it was only significant in the 18 and 24 weeks age groups."
Jakarta: Fakultas Kedokteran Universitas Indonesia, 2023
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UI - Skripsi Membership  Universitas Indonesia Library
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Isya Abiyyu Mumtaz
"Latar Belakang: Stres oksidatif merupakan kondisi yang meningkat seiring dengan peningkatan usia, dengan tingkat stres oksidatif yang tinggi ditemukan pada organ hati. Spirulina platensis memiliki aktivitas antioksidan yang mampu mencegah stres oksidatif. Metode: Penelitian merupakan penelitian eksperimental menggunakan jaringan hati tersimpan dari 30 tikus Wistar jantan yang sebelumnya telah diberikan akuades dan Spirulina selama 29 hari. Terdapat enam kelompok perlakuan, yaitu tiga kelompok yang diberikan akuades berusia 12 minggu, 18 minggu, dan 24 minggu, serta tiga kelompok yang diberikan Spirulina berusia 12 minggu, 18 minggu, dan 24 minggu. Aktivitas spesifik enzim katalase pada jaringan hati akan diukur dengan metode Claiborne. Hasil: Perbedaan aktivitas spesifik enzim katalase yang signifikan ditemukan antara kelompok tikus perlakuan akuades antara kelompok usia 24 minggu dengan usia 12 minggu dan 18 minggu. Semua kelompok tikus perlakuan Spirulina memiliki aktivitas spesifik enzim katalase yang lebih rendah dibandingkan dengan kelompok tikus perlakuan akuades dengan perbedaan signifikan ditemukan pada kelompok usia 18 minggu. Kesimpulan: Kelompok tikus usia 24 minggu memiliki aktivitas spesifik enzim katalase yang lebih rendah dibandingkan kelompok tikus usia 12 minggu dan 18 minggu. Tikus yang diberikan Spirulina memiliki aktivitas spesifik enzim katalase yang lebih rendah dibandingkan tikus yang diberikan akuades.

Introduction: Oxidative stress is a condition that increases following an increase in age with a significant level that can be found in the liver. Spirulina platensis has antioxidant activity that can prevent oxidative stress. Method: Experimental study using rat liver tissue of 30 rats from 6 groups, namely 3 groups aged 12 weeks, 18 weeks, and 24 weeks that were given aquadest, and 3 groups aged 12 weeks, 18 weeks, and 24 weeks that were given Spirulina extract. Specific activity of the catalase enzyme of the liver is measured using the Claiborne method. Results: A significant difference of specific activity of catalase can be seen between rats aged 24 weeks and rats aged 12 weeks and rats aged 18 weeks. Rats that were given Spirulina extract have a significant difference of specific activity of catalase between rats aged 18 weeks. Conclusion: Rats aged 24 weeks have a lower specific activity of catalase than rats aged 12 weeks and 18 weeks. All rats that were given Spirulina extract have a lower specific activity of catalase than rats that were given aquadest.
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Jakarta: Fakultas Kedokteran Universitas Indonesia, 2023
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UI - Skripsi Membership  Universitas Indonesia Library
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Akbar Aulia Bahar
"Latar Belakang: Hipoksia merupakan kondisi kurangnya oksigen yang dapat menyebabkan perubahan dalam metabolisme sel yang berdampak pada penggunaan glukosa dan tingkat glikogen hati. Gangguan yang berkelanjutan dapat menyebabkan hipoglikemia yang mengakibatkan penurunan produktivitas dalam berbagai profesi. Untuk mengatasi hal ini, studi ini menjelajahi efek terapi hipoksik hipobarik intermiten akut terhadap ekspresi fosfoenolpiruvat karboksikinase 1 (PCK-1) di hati. PCK-1 merupakan gen penting dalam glukoneogenesis, dan meskipun telah banyak diteliti, belum ada yang melihat efek spesifik yang dimiliki terapi ini terhadap ekspresi PCK-1. Dengan melihat perubahan metabolic dan adaptasi terhadap paparan berulang, penelitian ini berharap dapat berkontribusi dalam pencegahan penurunan kapasitas kerja, terutama pada atlet dan Angkatan Udara Indonesia. Metode: Penelitian ini dilakukan secara in vivo menggunakan 25 tikus Wistar yang dibagi menjadi 5 kelompok eksperimen berbeda. Setiap kelompok menerima paparan terapi hipoksia hipobarik yang berbeda dengan menggunakan lingkungan hipobarik simulasi. Setelah itu, hewan tersebut di-eutanasia, kemudian sampel darah dan hati diekstraksi. RNA diisolasi dari sampel yang terkumpul dan diukur levelnya menggunakan spektrofluorometer. Terakhir, ekspresi mRNA PCK-1 diukur menggunakan qRT-PCR. Hasil: Percobaan ini menunjukkan peningkatan ekspresi mRNA PCK-1 pada semua kelompok perlakuan saat dibandingkan dengan kelompok kontrol, tingkat ekspresi tertinggi dapat terlihat pada kelompok eksperimental 1. Semua peningkatan tersebut terbukti signifikan secara statistik. Kesimpulan: Ditemukan bahwa paparan hipoksia hipobarik intermiten dapat meningkatkan ekspresi mRNA PCK-1 di hati tikus. Terjadi peningkatan setelah 4 episode paparan, hal ini diduga sebagai respons fisiologis hati terhadap kondisi hipoksia untuk upregulate gen yang terlibat dalam metabolism glukosa dan glutamin. Peningkatan ini akan mendukung jalur anabolik.

Introduction: Hypoxia, a condition of oxygen deficiency, causes alteration in cellular metabolism which impact glucose utilization and liver glycogen level. Continued disruption may lead to hypoglycemia leading to decreased productivity in various professions. To alleviate this issue this study explores the effect of acute intermittent hypoxic hypobaric treatment on the expression of phosphoenolpyruvate carboxykinase 1 (PCK-1) in the liver. PCK-1 is an essential gene in gluconeogenesis, although it has been extensively studied, none has explored the specific effect that this therapy has on its expression. This research aims at revealing the adaptive metabolic mechanism of the liver tissue towards intermittent hypoxic hypobaric, this was accomplished by measuring PCK1. Methods: The study was conducted in vivo using 25 Wistar rats that was arranged into 5 groups. Each group received different amount of exposure to hypobaric hypoxia therapy utilizing simulated hypobaric environment. Post-treatment the animals was euthanized, then liver samples were extracted. RNA was isolated from the collected samples and then quantified using spectrophotometer. Lastly, PCK-1 mRNA expression was analysed using qRT-PCR. Results: The experiment yielded an increase of PCK-1 mRNA expression in all treatment groups when compared to the control, with the highest increase of expression seen in experimental group 1. Statistical analysis through Mann-whitney test revealed that there is variation between significance. There was a decrease between experimental group 2, 3 and 4 which indicates an adaptive response towards repeated IHH. Conclusion: It was discovered that intermittent hypobaric hypoxia exposure increased PCK-1 mRNA expression in the liver of rats. An increase was seen after 4 episodes of exposure, this was postulated to be the result of a physiological response to the hypoxic conditions done by the liver to upregulate genes involved in glucose metabolism. This upregulation will support anabolic pathways."
Jakarta: Fakultas Kedokteran Universitas Indonesia, 2023
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UI - Tugas Akhir  Universitas Indonesia Library
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Dian Kusumadewi
"ABSTRAK
Tujuan penelitian ini adalah untuk mengetahui pengaruh pemberian MPASI furmula diperkaya zat besi terbadap kadar feritin serum, hemoglobin dan perkembangan kognitif bayi usia 6-8 bulan, Penelitian ini merupakan uji klinik, membandingkan 38 subyek yang mendapat konseling dan MPASI formula dangan 38 subyek yang mendapat MP AS! raeikan selarna 90 hari. Sebanyak 76 subyek yang berasal dari posyandu-posyandu di dua lokasi kelurahan Karnpong Melayu, kecamatan Jatinegara, dibagi menjadi dua yaitu kelompok perlakuan (P) dan kontrol (X) dengan alokasi aeak berdasarkan pembagian wilayah. Data subyek yang diambil meliputi usia, berat badan, penjang badan, lingkar kepala, asupen energi, protein, zat besi serta kadar feritin serum, hemoglobin, dan skor perkembangan kognitif. Pengukoran kadar feritin serum, hemoglobin dan skor perkembangan kognitif dilakakan sebelum dan sesudah perlakoan. Analisis data dilakakan dengan uji t berpasangan dan t tidak berpasangan serta uji non pararnetrik dangan batas kemaknaan 5%. Sebanyak 38 subyek peda kelompok P dan K telah mengikuti penelitian secara lengkap. Satu subyek pada masing-masing kelompok dikeluarkan karena salcit yang dapat mempengaruhi basil penelitian. Data awal menunjukkan keadaan yang sama antara kelompok P dan K. Penurunan kedar feritin serum, peningkatan kedar hemoglobin dan peningkatan skor perkembangan kognitif tidak bermakna secara statistik pada kedua kelompok (p>0,05). Penurunan kedar feritin serum pada kelornpok K lebih besar daripada kelompok P dan penurunannya bermakna secara statistik (p<0,05). Persentase asupan terbadap kebutuhan energi dan protein pada periode awal, tengah hingga akhir perlakaan dengan metoda food recall 1x24 jam dalam keadaan sebanding. Perubahan persenblse asupan terbadap kebu!uhan energi dan protein antara kelompok P dan K tidak bennakoa secara statistik. Persen1llse asupen terhOdap kebutuhan zat besi dengan FFQ semikuantitatif satu bulan peda kedua kelompok sebelum perlakaan tampak sebanding namun perubaban persentase asupan terbadap kebetuhan zat besi antara kedua kelompok benmakna seeara statistik. Kadar feritin serum, hemoglobin dan skor perkembangan kognitif sebelnm perlakuan peda kedua kelompok dalam keadaan sebanding. Penurunan kedar feritin serum, peningkatan kedar hemoglobin dan peningkatan skor perkembangan kognitif antara kelompok P dan K tidak bermakna secara statistik.

ABSTRACT
The aim of this study is to find the effect of iron fortified complimeni1Uy feeding formula on changes in serum feritin, hemoglobin level and cognitive development score in 6-ll month's old baby. The study was a clinical trial, consists of 38 subjects in the treatment group that had received counseling and iron fortified complimentary feeding formula (P) and 38 subjects in the control group (K) that had received counseling and home oomplimeni1Uy feeding fur 90 days. Seventy six subjects were admitted from two locations in kelurahan KampungMelayu. kecamatan Jatinegara who had fulfill the study criteria. They were divided into two groups using random allocation based on geographic location. Each group had some posyandu that participate the research. Data collected consist of age, weight, height, head circumference, energy, protein and iron intake, serum feritin. hemoglobin level and cognitive development score. Examinations of serum feritin, hemoglobin level and cognitive development score were examined before and after intervention. Statistical analysis was using independent t-test, non~ independent t-test and non parametric test. The level of significance was 5%. Each of38 subjects in both group bed completed the study. There was one drop out subject in each I' and K because they got ill. Early data showed equal condition between P and K group. There were statistically insignificant changes on senun feriti~ hemoglobin level and cognitive development score in two groups (p>O,O5). Serum feritin level had decrease higher in P than K and statistically significant (p"
2010
T32842
UI - Tesis Open  Universitas Indonesia Library
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Fitriana Nugraheni
"Obesitas menjadi tantangan serius di dunia. Konsumsi protein adalah salah satu faktor penting yang berkontribusi terhadap regulasi lemak tubuh, tetapi informasi mengenai sumber protein specific dan pengaruhnya terhadap regulasi lemak di negara berkembang masih terbatas. Sehingga, peneliti ingin mengetahui hubungan antara asupan protein dan sumbernya dengan obesitas pada orang dewasa di Indonesia. Studi cross-sectional ini melibatkan 167 orang dewasa berusia 19-50 tahun di perkotaan Jakarta Timur. Asupan protein didapatkan dari repeated 24H Recall yang diklasifikasikan sebagai asupan rendah dan tinggi protein. Persentase lemak tubuh diukur dengan metode Air Displacement Plethysmograph yang diklasifikasikan sebagai obesitas wanita (>33%) dan obesitas pria (>25%). Sekitar 69% subjek mengalami obesitas. Sumber utama asupan protein nabati dan hewani berasal dari sereal dan produknya (median =11,3 gr/hari atau 22,9% dari total protein), dan unggas (median =7,85 gr/hari atau 15,9% dari total protein). Setelah penyesuaian terhadap status perkawinan dan jenis kelamin mendapatkan hasil bahwa asupan tinggi protein tidak berhubungan dengan obesitas (OR 1,84, p-value = 0,15), dan jenis asupan protein hewani atau nabati tidak berhubungan dengan obesitas (OR protein hewan 0879, p-value = 0,69; OR protein nabati 0,95, p-value =0,98). Promosi jenis konsumsi protein harus diperhatikan agar berhasil menurunkan prevalensi obesitas di negara ini.

Obesity is becoming a serious challenge worldwide. Protein consumption is one of the important contributing factors to body fat regulation, but existing information has limitedly explored type of protein and its influence for fat regulation in developing world. Therefore, we investigated the association between protein intake and its sources with obesity. This cross-sectional study involved 167 adults aged in East Jakarta. Protein intake were collected from repeated 24-hour recalls that was classified as low and high intake. Body fat percentage was measured by Air Displacement Plethysmograph method and classified as female obese (>33%) and male obese (>25%). About 69% of subjects were obese. The main sources of plant and animal protein intake came from cereals and its products (median=11.3 gr/day or 22.9% of protein intake), and white meat (median=7.85 gr/day or 15.9% of protein intake), respectively. After adjustment for marital status and sex those who had higher protein intake did not associated with being obese (Adjusted OR 1.84, p-value=0.15), while, animal-plant protein intake was not associated with obesity (Adjusted OR 0.879 animal protein, p-value=0.69; OR 0.95 plant protein, p-value=0.98). The promotion of type of protein consumption must be concerning to successfully lower the prevalence of obesity in the country."
Jakarta: Fakultas Kedokteran Universitas Indonesia, 2019
T55517
UI - Tesis Membership  Universitas Indonesia Library
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Ema Susiana
"ABSTRAK
LATAR BELAKANG: Proses remodelling tulang ditentukan oleh keseimbangan antara proses pembentukan oleh osteoblast dan resorpsi sel tulang oleh osteoklas. Osteprotegerin (OPG) memiliki peran penting dalam menghambat proses resorpsi tulang oleh osteoklas. Pada wanita menopause, proses resorpsi lebih tinggi daripada proses pembentukan tulang, sehingga dapat mengakibatkan terjadinya osteoporosis. Pada penelitian ini, single nucleotide polymorphisms (SNPs) pada daerah promoter gen OPG diteliti untuk mengetahui hubungannya dengan risiko osteoporosis pada wanita menopause.
BAHAN dan CARA KERJA: Penelitian ini melibatkan 285 wanita Indonesia menopause yang terdiri dari 81 wanita normal, 143 wanita dengan osteopenia dan 61 wanita dengan osteoporosis. Angka T-score diperoleh dengan pengukuran menggunakan Ultrasound Densitometry. Analisis genetik dilakukan menggunakan teknik PCR-RFLP. Analisis statistik menggunakan uji chi-square dengan asumsi kemaknaan p<0,05.
HASIL: Hasil penelitian memperlihatkan bahwa frekuensi genotip (TT, TC dan CC) pada semua kelompok (normal, osteopenia dan osteoporosis) tidak berbeda bermakna (p>0,05). Frekuensi alotip (alel T dan C) pada semua kelompok juga tidak berbeda bermakna (p>0,05). Hasil perhitungan odd ratio dengan menggunakan genotip TT sebagai pembanding memperlihatkan bahwa genotip CC memiliki kemungkinan mengalami gangguan kelainan tulang (osteopenia dan osteoporosis) 0,29 kali (22%) dan TC 0,88 kali (46%) lebih besar dibandingkan dengan genotip TT. Dari hasil penelitian ini, dapat disimpulkan bahwa SNP T950C tidak memiliki peranan dalam kejadian osteoporosis pada wanita menopause di Indonesia.

ABSTRACT
INTRODUCTION: Bone remodelling process is determined by the balance between the bone formation and resorption. Osteoprotegerin (OPG) has an important role to inhibit bone resorption by osteoclast. In menopausal women, the rate of bone resorption is higher than its formation, thereby inducing osteoporosis. In this study, single nucleotide polymorphism (SNPs) in promoter region of gene OPG is studied regarding to the association to the risk of the osteoporosis in menopausal Indonesian women.
MATERIAL and METHODS: The study samples consist of 285 menopausal Indonesian women, of which 81 are classified as normal (healthy), 143 are with osteopenia and 61 are with osteoporosis. T-score is obtained from the measurement using Ultrasound Densitometry, and genetic polymorphism analysis was performed by PCR RFLP. The statistical analysis uses chi-square with significance assumption at p<0.05.
RESULT: This study shows the frequency of genotypes (TT, TC and CC) to all groups (normal, osteopenia and osteoporosis), but it does not demonstrate any significant differences (p>0.05). The frequency of allotypes (T and C) to all groups also does not show the significance (p>0.05). Odd ratio calculations demonstrate that the possibility of developing bone disorders (osteopenia and osteoporosis) for both CC genotype and TC genotype is higher than TT genotype, as much as 0.29 times higher (22%) and 0.88 times higher (46%), respectively."
2013
T-Pdf
UI - Tesis Membership  Universitas Indonesia Library
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Arfi Kurniawan
"Penyakit tuberkulosis (TB) merupakan penyakit infeksi yang disebabkan oleh bakteri Mycobacterium tuberculosis. Infeksi TB telah menjadi masalah kesehatan utama di seluruh dunia. Peningkatan jumlah kasus TB disebabkan oleh munculnya TB yang resisten terhadap obat (MDR-TB/ Multi Drugs Resistant) dan koninfeksi dengan HIV. BCG merupakan vaksin yang tersedia saat ini, efisien melindungi manifestasi penyakit parah pada anak, tetapi vaksin ini tidak mencegah pembentukan TB laten atau reaktivasi penyakit paru pada orang dewasa. Protein rpfB M.tuberculosis merupakan faktor virulensi dan resusitasi dari dormansi M. tuberculosis. Protein ini diketahui berperan dalam pemecahan peptidoglikan dari dinding sel bakteri dan menstimulasi pertumbuhan bakteri dan resusitasi dari keadaan laten. Hal ini menjelaskan bahwa protein rpfB mempunyai sifat imunogenik yang tinggi dan berpotensi untuk dikenali oleh sistem imun dan dikembangkan strategi vaksin yang berbasis vaksin subunit yang dapat digunakan untuk menstimulasi sel T.
Strain yang digunakan pada penelitian ini adalah strain Beijing yang diisolasi di Indonesia dan strain H37Rv sebagai kontrol. Strain Beijing diketahui bersifat lebih virulen, relatif resisten terhadap obat dan cenderung menyebabkan penyakit paru pada orang dewasa dibandingkan strain lain. Gen rpfB strain Beijing dan H37Rv diamplifikasi dengan teknik PCR dan diinsersikan ke dalam vector pGEX-6P-1. Plasmid rekombinan pGEX 6P-1-rpfB ditransformasi ke E.coli BL21 untuk diekspresikan. Protein rpfB diekspresikan dengan induksi IPTG. E.coli BL21 berhasil ditransformasi dengan plasmid rekombinan dengan arah orientasi yang benar. Analisis epitop sel T CD4+ dan CD8+ memperlihatkan tidak ada mutasi yang ditemukan pada asam amino yang menjadi epitop pengenalan sel T CD4+ dan CD8+. Protein rpfB rekombinan berhasil diekspresikan pada E.coli BL21. Hasil ekspresi protein rpfB menunjukkan pita protein yang berada pada ukuran 66 kDa. Analisis western blot mengkonfirmasi kebenaran protein rpfB dengan antibodi anti-GST.

Tuberculosis is an infectious disease caused by Mycobacterium tuberculosis pathogen. TB infection has been a major threat to global health. The wide spread of TB cases attributed by TB drug resistant (MDR-TB/ Multi Drugs Resistant) and HIV coinfection. BCG is a current available vaccine for TB, is efficient for protection manifestations of childhood disease, but it has failed to prevent latently TB form or reactivation adult pulmonary. rpfB protein need for virulent and resuscitation from dormant Mtb. rpfB protein is known to involved in peptidoglycan cleaveage from bacteria cell wall and stimulate bacteria growth and resuscitation of latently. It suggests that rpfB protein has highly immunogenic characteristic and potent to recognized immune respons and to be developed vaccine strategy based on subunit vaccine which can use to stimulate T cells.
Strains that used in this research, consist of Beijing strain that isolated from Indonesia and H37Rv strain as control. Beijing strain is known more virulent, relatively resistant to drug and tend to caused adult pulmonary disease compared to other strain. rpfB gene of Beijing strain and H37Rv amplify by PCR and insert to pGEX-6P-1 vector. Recombinant plasmid (pGEX-6P-1-rpfB) is transformed to Escherichia coli BL21 for protein expression. rpfB protein expressed by IPTG induction. E.coli BL21 was successed to transformed with recombinant plasmid in correctly orientation. Epitope analysis of CD4+ T cell and CD8+ T cell shown no mutation found in amino acid that encoded recognized epitope of CD4+ T cell and CD8+ T cell. Recombinant protein has been expressed in E.coli BL21. The result of expression showed the molecular weight of protein band is in 66 kDa. Western blot analysis confirmed correct rpfB protein using anti-GST antibody.
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Jakarta: Fakultas Kedokteran Universitas Indonesia, 2014
T-Pdf
UI - Tesis Membership  Universitas Indonesia Library
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Supraja Dwiyono
"[ABSTRAK
Doksorubisin merupakan salah satu antikanker golongan antrasiklin yang efektif,
untuk keganasan di darah. Akan tetapi, seperti antikanker konvensional pada
umumnya, penggunaan doksorubisin dapat menyebabkan berbagai efek samping pada
organ lain, misalnya pada testis sehingga penggunaannya di klinis menjadi terbatas.
Hal ini disebabkan karena mekanisme antikanker doksorubisin dapat juga
menimbulkan toksisitas pada testis. Peningkatan stress oksidatif adalah salah satu
mekanisme dapat menyebabkan kerusakan pada organ tersebut. Mangiferin sebagai
zat antioksidan alami, terkandung dalam Mangifera Indica L. diperkirakan dapat
digunakan untuk mengurangi toksisitas testis. Namun sampai saat ini, belum ada
penelitian yang mengeksplor efek proteksi mangiferin terhadap kerusakan oksidatif
testis yang diinduksi doksorubisin.
Penelitian ini menggunakan tikus jantan Sprague Dawley, yang dibagi menjadi empat
kelompok. Masing-masing kelompok terdiri dari enam ekor tikus. Tikus pada
kelompok kontrol negatif diberikan doksorubisin secara intraperitoneal (dosis total 15
mg/kgBB) dan kelompok normal diberikan NaCl 0,9%. Mangiferin (dosis 30 dan 60
mg/kg BB) diberikan oral selama tujuh minggu. Setelah, tujuh minggu tikus
dimatikan dan testis dikumpulkan untuk analisis parameter stress oksidatif biokimia
kadar MDA (malonedyaldehide), aktivitas SOD (Superoxide Dysmutase), perubahan
histologi dan apoptosis kaspase-9 dan kaspase-12. Hasil penelitian menunjukkan
bahwa pemberian doksorubisin selama dua minggu dapat meningkatkan kadar MDA,
menyebabkan kerusakan sel spermatogenik, sel Sertoli dan penciutan diameter
tubulus seminiferus testis, peningkatan ekspresi kaspase-9 di sisi luminal yang
diberikan doksorubisin. Pemberian mangiferin dosis 30 dan 60 mg/kg BB selama
tujuh minggu dapat mengurangi kerusakan sel spermatogenik dan sel Sertoli tubulus
seminiferus testis, penurunan kadar MDA dan penurunan ekspresi kaspase-9 pada
kelompok perlakuan diberikan doksorubisin dan mangiferin. Perbaikan parameterparameter
ini mengindikasikan bahwa mangiferin mempunyai efek proteksi terhadap
kerusakan sel spematogenik dan sel sertoli tubulus seminiferus testis tikus yang
diberikan doksorubisin.

ABSTRACT
Doxorubicin, one of the anthracycline anticancer class, is effective especially in blood
malignancy. However, as in the general use of the conventional anticancer-drugs.
Doxorubicin can cause various side effects in other organs, such as the testes so that
its use in clinical become limited. This is because of the anticancer mechanism can
cause cytotoxicity on testes. The increased oxidative stress is the main mechanism
that can be the causal. Mangiferin as a natural antioxidant substance, contained in
Mangifera Indica L., is expected to reduce the toxicity. The Antioxidants are
expected to reduce the toxicity of the testes. But until now, no studies have explored
the effects of mangiferin protection against oxidative damage induced testicular
doxorubicin.
This study used male Sprague Dawley rats, which were divided into four groups.
Each group consisted of six mice. Rats in the negative control group was given
intraperitoneal doxorubicin (total dose 15 mg/kg) and the normal group was given
normal saline 0.9%. Mangiferin (doses of 30 and 60 mg/kg) was administered orally
for seven weeks to the treatment gtoups (both DOX and MAG were given). After
seven weeks-off, testes of mice were collected for analysis of biochemical parameters
i.e. oxidative stress levels of MDA and SOD activity, histology and apoptosis of the
caspase-9 and of the caspase-12. The results showed that administration of
doxorubicin for two-weeks can cause damage to Sertoli, spermatogenic cells and
shrinking of diameter of testicular seminiferous tubules, increasing the levels of
MDA, increasing in the expression of caspase-9 on the luminal side in the treatment
group was given doxorubicin. This possibility of the doxorubicin dose given is too
toxic to the testes in this study. Mangiferin dose administration of 30 and 60 mg / kg
for seven-weeks can reduce the damage of Sertoli and spermatogenic cells of the
testicular seminiferous tubules, decrease levels of MDA, reduce Sertoli,
spermatogenic cell and diameter of the testicular seminiferous tubulus damage,
decrease caspase-9 expression only on luminal side of the seminiferus tubulus in the
groups given both of doxorubicin and mangiferin. these parameters indicate that
mangiferin, which has antioxidant?s activity, provides protective effects against
oxidative damage in spematogenic and Sertoli cell testicular seminiferous tubules of
mice given doxorubicin, Doxorubicin, one of the anthracycline anticancer class, is effective especially in blood
malignancy. However, as in the general use of the conventional anticancer-drugs.
Doxorubicin can cause various side effects in other organs, such as the testes so that
its use in clinical become limited. This is because of the anticancer mechanism can
cause cytotoxicity on testes. The increased oxidative stress is the main mechanism
that can be the causal. Mangiferin as a natural antioxidant substance, contained in
Mangifera Indica L., is expected to reduce the toxicity. The Antioxidants are
expected to reduce the toxicity of the testes. But until now, no studies have explored
the effects of mangiferin protection against oxidative damage induced testicular
doxorubicin.
This study used male Sprague Dawley rats, which were divided into four groups.
Each group consisted of six mice. Rats in the negative control group was given
intraperitoneal doxorubicin (total dose 15 mg/kg) and the normal group was given
normal saline 0.9%. Mangiferin (doses of 30 and 60 mg/kg) was administered orally
for seven weeks to the treatment gtoups (both DOX and MAG were given). After
seven weeks-off, testes of mice were collected for analysis of biochemical parameters
i.e. oxidative stress levels of MDA and SOD activity, histology and apoptosis of the
caspase-9 and of the caspase-12. The results showed that administration of
doxorubicin for two-weeks can cause damage to Sertoli, spermatogenic cells and
shrinking of diameter of testicular seminiferous tubules, increasing the levels of
MDA, increasing in the expression of caspase-9 on the luminal side in the treatment
group was given doxorubicin. This possibility of the doxorubicin dose given is too
toxic to the testes in this study. Mangiferin dose administration of 30 and 60 mg / kg
for seven-weeks can reduce the damage of Sertoli and spermatogenic cells of the
testicular seminiferous tubules, decrease levels of MDA, reduce Sertoli,
spermatogenic cell and diameter of the testicular seminiferous tubulus damage,
decrease caspase-9 expression only on luminal side of the seminiferus tubulus in the
groups given both of doxorubicin and mangiferin. these parameters indicate that
mangiferin, which has antioxidant’s activity, provides protective effects against
oxidative damage in spematogenic and Sertoli cell testicular seminiferous tubules of
mice given doxorubicin]"
2015
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Silvani Permatasari
"[ABSTRAK
Latar belakang: Proses pematangan sperma terjadi melalui interaksi spermatozoa dengan protein yang disekresikan ke lumen oleh sel epitel epididimis. Sekresi protein pada epididimis ditentukan oleh gen-gen yang terekspresi spesifik di epididimis. Ekspresi gen di epididimis dapat dipengaruhi oleh androgen atau faktor testikular. CD52 telah diketahui terekspresi di epididimis, namun regulasi yang mempengaruhi ekspresi gen CD52 di epididimis belum diketahui. Tujuan dari penelitian ini adalah untuk menganalisis ekspresi dan regulasi gen CD52 agar dapat memprediksi perannya di epididimis mencit. Metode: Analisis bioinformatika dilakukan untuk memprediksi sinyal peptida dan domain fungsional dari CD52. Quantitative real time RT-PCR digunakan untuk mengukur ekspresi relatif gen CD52 pada analisis spesifisitas jaringan, ketergantungan terhadap androgen dan faktor testikular, serta postnatal development. Hasil: CD52 memiliki sinyal peptida yang menunjukkan ciri protein sekretori dan terekspresi secara spesifik di epididimis. Ekspresi CD52 yang tertinggi terdapat di bagian cauda. Ekspresi CD52 pada mencit diregulasi oleh androgen yang ditandai dengan penurunan pada hari pertama dan ketiga setelah digonadektomi dan pemberian testosteron eksogen setelah gonadektomi dapat menjaga ekspresi CD52 50% dari kadar normalnya. Eksperimen dengan memberikan reseptor androgen antagonis (flutamide) juga mendukung bahwa ekspresi CD52 sangat tergantung terhadap androgen. Ekspresi CD52 menurun sangat bermakna hingga mencapai 93% dibandingkan dengan kontrol. Selain androgen, ekspresi CD52 juga dipengaruhi oleh faktor testikular. Ekspresi CD52 mengalami penurunan bermakna dari hari pertama hingga kelima setelah perlakuan efferent duct ligation (EDL) hingga mencapai 75% dari kontrol. Selain itu ekspresi CD52 juga dipengaruhi oleh perkembangan pasca lahir. Ekspresi CD52 meningkat di hari ke-15 hingga hari ke-60 pasca lahir. Kesimpulan: CD52 merupakan gen penyandi protein sekretori yang terekspresi spesifik di epididimis pada region cauda dan regulasinya dipengaruhi oleh androgen, faktor testikular, dan perkembangan pasca lahir.

ABSTRACT
Background. Epididymal sperm maturation is occurs via interactions between sperm and proteins secreted by epididymal epithelium. These proteins are encoded by genes that are specifically expressed in a region-specific manner. Previous studies have demonstrated that epididymal genes are regulated by androgen and testicular factors. CD52 is an epididymal gene putatively involved in sperm maturation. However, the regulation of its expression in the epididymis has not been fully understood and little is known about its role during sperm maturation process. Therefore, this study was aimed to analyze the expression and regulation of CD52 in the mouse epididymis. Method. Bioinfomatic analyses were perfomed to predict signal peptides and functional domains of CD52. Quantitative real-time RT-PCR was used to analyze tissue distribution, androgen, testicular factors dependency and postnatal development. Results. CD52 amino acid sequence contains a signal peptide, indicating it is a secretory protein. CD52 exhibited region-spesific expression in the epididymis with the highest level was in cauda. Mice CD52 expression was regulated by androgen indicated by a decrease started at day 1 following a gonadectomy. Interestingly, testosterone replacement therapy was able to maintain the expression at 50% of normal level. Experiment by given androgen receptor antagonist, flutamide showed decrease of CD52 expression about 93% than control. It?s confirming that CD52 expression depend on androgen. Moreover, testicular factors also influenced CD52 expression. This was revealed by efferent duct ligation in which CD52 expression was reduced at day 1 to day 5 following the ligation. Finally, CD52 expression was developmentally regulated, this was indicated by increase in the level of expression start at day 15 postnatally. Conclusion: CD52 is a secretory protein and exhibited region-spesific expression in the cauda epididymis. It is regulated by androgen, testicular factors, and also affected by development stage.
, Background. Epididymal sperm maturation is occurs via interactions between sperm and proteins secreted by epididymal epithelium. These proteins are encoded by genes that are specifically expressed in a region-specific manner. Previous studies have demonstrated that epididymal genes are regulated by androgen and testicular factors. CD52 is an epididymal gene putatively involved in sperm maturation. However, the regulation of its expression in the epididymis has not been fully understood and little is known about its role during sperm maturation process. Therefore, this study was aimed to analyze the expression and regulation of CD52 in the mouse epididymis. Method. Bioinfomatic analyses were perfomed to predict signal peptides and functional domains of CD52. Quantitative real-time RT-PCR was used to analyze tissue distribution, androgen, testicular factors dependency and postnatal development. Results. CD52 amino acid sequence contains a signal peptide, indicating it is a secretory protein. CD52 exhibited region-spesific expression in the epididymis with the highest level was in cauda. Mice CD52 expression was regulated by androgen indicated by a decrease started at day 1 following a gonadectomy. Interestingly, testosterone replacement therapy was able to maintain the expression at 50% of normal level. Experiment by given androgen receptor antagonist, flutamide showed decrease of CD52 expression about 93% than control. It’s confirming that CD52 expression depend on androgen. Moreover, testicular factors also influenced CD52 expression. This was revealed by efferent duct ligation in which CD52 expression was reduced at day 1 to day 5 following the ligation. Finally, CD52 expression was developmentally regulated, this was indicated by increase in the level of expression start at day 15 postnatally. Conclusion: CD52 is a secretory protein and exhibited region-spesific expression in the cauda epididymis. It is regulated by androgen, testicular factors, and also affected by development stage.
]"
2015
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Martwinny Reinsiska Benung
"ABSTRAK
Blastocystis hominis adalah parasit protozoa uniseluler yang sering ditemukan pada saluran intestinal manusia. Gejala klinis pada infeksi Blastocystis hominis tidak spesifik, seperti diare kronis, nyeri abdomen, dan rasa tidak nyaman di perut. Diare yang kronis pada anak dapat mengakibatkan gangguan tumbuh kembang. Diagnostik deteksi Blastocystis hominis dilakukan dengan pemeriksaan langsung. Beberapa penelitian sebelumnya telah melaporkan metode lain dalam pemeriksaan Blastocystis hominis, yaitu metode kultur dan metode PCR. Pada penelitian ini dilakukan perbandingan hasil deteksi Blastocystis hominis dengan menggunakan metode kultur dan metode PCR dengan menggunakan gen 18S rRNA, setelah dilakukan pemeriksaan langsung untuk mengetahui tingkat sensifisitas dan spesifisitas kedua metode tersebut. Sampel penelitian berupa feses yang berjumlah 36 sampel, yang terdiri dari kelompok positif dan kelompok negatif infeksi Blastocystis hominis setelah pemeriksaan langsung, masing-masing kelompok sebanyak 18 sampel. Kelompok sampel tersebut dilakukan pemeriksaan metode kultur dan metode PCR. Hasil penelitian menunjukkan tidak terdapat perbedaan bermakna (p > 0,05) antara metode kultur dan metode PCR, dan hasil penelitian juga mengindikasikan sensitivitas PCR terhadap metode kultur adalah 89% dan spesifisitas PCR terhadap metode kultur adalah 78%.

ABSTRACT
Blastocystishominis is a unicellular protozoan parasites that are often found in the human intestinal tract. Clinical symptoms in Blastocystishominis infection are not specific, such as chronic diarrhea, abdominal pain, and discomfort in the abdomen. Chronic diarrhea in children can result in growth disorders. Blastocystis hominis diagnostic detection was done with direct examination. Preliminary studies have reported other methods of examination Blastocystis hominis, namely the culture method and the PCR method. We studied a comparison forBlastocystishominis detection using culture method and the PCR method with 18S rRNA gene as a marker, after direct examination to determine the level sencitivity and specificity of the two methods. The sample from fecal totaling 36 samples, classified of a positive and negative groups Blastocystis hominis infection after direct examination, each group as many as 18 samples. The sample group examined culture method and the PCR method. The results showed there was no significant differences (p> 0.05) between the culture method and the PCR method, and the results also indicate thatthe sensitivity of PCR for culture method is 89% and specificity of PCR to the culture method is 78%.
"
Fakultas Kedokteran Universitas Indonesia, 2015
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