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Hasil Pencarian

Ditemukan 13 dokumen yang sesuai dengan query
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Wael Oemar Al Jaidy
"Latar belakang: Infertilitas merupakan gangguan dalam sistem reproduksi berupa tidak tercapainya kehamilan secara klinis setelah hubungan seksual dilakukan secara reguler selama minimal 12 bulan tanpa menggunakan kontrasepsi. Salah satu pilihan tatalaksana adalah fertilisasi in vitro. Dalam melakukan FIV, salah satu tahap yang menunjang keberhasilan adalah stimulasi ovarium terkendali dengan menggunakan gonadotropin seperti rekombinan FSH atau human menopausal gonadotropin.
Tujuan: Mengetahui hubungan stimulasi ovarium terkendali yang mendapatkan sediaan gonadotropin berupa rFSH dan hMG dengan luaran FIV berupa jumlah oosit, jumlah embrio, dan fertilization rate pada periode 2013– 2019
Metode: Penelitian ini menggunakan desain potong lintang menggunakan data rekam medis yang menjalani program FIV di Klinik Melati Harapan Kita tahun 2013 – 2019. Data yang digunakan adalah data pasien yang menjalani program dengan protokol rFSH dan hMG dibandingkan dengan luaran jumlah oosit, fertilization rate, dan jumlah embrio.
Hasil: Dari 454 pasien yang memenuhi kriteria, 309 pasien menggunakan rFSH sebagai obat stimulasi ovarium dan 145 pasien menggunakan hMG sebagai obat stimulasi ovarium. Hasil uji non parametrik lebih tinggi pada kelompok pengguna rFSH dengan ketiga variabel yang diteliti ditemukan bermakana secara signifikan dengan hasil p < 0,05.
Kesimpulan: Terdapat perbedaan yang signifikan antara jumlah oosit, fertilization rate, dan jumlah embrio pada kelompok rFSH dan hMG (P < 0,05) dengan rata-rata oosit, fertilization rate, dan jumlah embrio kelompok rFSH lebih besar daripada kelompok hMG

Background: Infertility is a reproductive disorder characterized by inability of a married couple to be clinically pregnant after regular sexual intercourse of 12 months duration without using any contraceptive method. One of the therapeutic options to solve the problem is in vitro fertilization. Controlled ovarian stimulation is one of the most important steps which determine the success of the procedure. Gonadotropin has been used as the drug which stimulates the ovary to produce egg. Recombinant FSH and human menopausal gonadotropin are extensively used as the drug of choice.
Aim: This research aimed to explore the relationship between gonadotropin which is used in the process of controlled ovarian stimulation, rFSH and hMG, and the in vitro fertilization outcome, which are oocyte number, embrio number, and fertilization rate during the period of 2013 – 2019.
Methods: This research was a cross sectional study. Data from medical record of patients who underwent the in vitro fertilization procedure at Melati Clinic, Harapan Kita Child and Mother Hospital were obtained. This research collected the oocyte number, embryo number, and fertilization rate of eligible patients who received rFSH or hMG stimulation.
Results: 454 patients were eligible for the research, further divided into 309 patients who received rFSH and 145 patients who received hMG. Non-parametric test revealed that patients who belong to the rFSH group had a statistically significant oocyte number, embryo number, and fertilization rate compared to hMG group with p < 0.05.
Conclusion: Significant difference of oocyte number, embryo number, and fertilization rate exists between rFSH and hMG group (p < 0.05) with the mean oocyte number, embryo number, and fertilization rate are consistently observed higher in the rFSH group compared to hMG group.
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Jakarta: Fakultas Kedokteran Universitas Indonesia, 2019
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UI - Tugas Akhir  Universitas Indonesia Library
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Riza, Author
"Lovastatin merupakan metabolit sekunder yang dapat dihasilkan oleh kultur jamur Aspergillus terreus dan Monascus rubber. Senyawa Lovastatin telah ditelitl manfaatnya sebagai senyawa penurun kadar LDL-kolesterol dengan cara menginhibisi enzim HMG-CoA reduktase pada sintesis kolesterol. Penelitian ini bertujuan untuk memperoleh senyawa turunan lovastatin melalui reaksi transesterifikasi senyawa lovastatin dengan pentanol menggunakan katalis asam yaitu HCI gas. Reaksi dilakukan pada suhu 138° C selama 36 jam. Hasil reaksi diekstraksi dengan pelarut diklorometana-air. Fasa diklorometana kemudian diidentifikasi dengan metode Kromatografi Lapis Tip is (KL T) menggunakan eluen n-heksana : etil asetat 1 : 1 (v/v). Pemisahan senyawa hasil sintesis dilakukan dengan kromatografi kolom dengan fasa gerak yang sesuai dengan kromatografi lapis tipis yaitu n-heksana: etil asetat (sistem gradien polaritas), sehingga didapatkan fraksi berupa lapisan minyak berwarna kuning.: Fraksi I:I kolom kemudian diidentifikasi dengan Kromatografi Lapis Tipis (KL T;) menggunakan eluen n-heksana : etil asetat 1 : 1 (v/v). Selanjutnya, fraksi dengan Rt = 0,40, diidentifikasi dengan MS.Dari hasil identifikasi dengan MS, senyawa hasil sintesi$ mempunyai M+ 408, yaitu pentil 3,5-dihidroksi-7-(1'-hidroksi ... 3',8'-dimetilheksahidronaftalen)-heptanoat denQan rendemen sebesar 12,9 %."
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2005
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UI - Skripsi Membership  Universitas Indonesia Library
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Desna Qurratul Aini
"[ ABSTRAK
Keji Beling (Strobilanthes crispus) merupakan salah satu tanaman yang dapat dimanfaatkan sebagai antihiperkolesterolemia dengan senyawa aktif fitosterol. Pembuatan nanopartikel keji beling sebagai penghantar obat dilakukan untuk mencapai efektivitas obat menuju organ target. Penelitian ini bertujuan mendapatkan gambaran profil pelepasan nanopartikel keji beling pada media fluida sintetik dengan variasi konsentrasi penyalutnya serta pengujian inhibisi ekstrak keji beling dalam menghambat enzim HMG KoA Reduktase. Penelitian terdiri atas 4 tahap yaitu ekstraksi keji beling, pembuatan nanopartikel, uji profil pelepasan serta uji inhibisi enzim HMG koA Reduktase. Penelitian ini menghasilkan nanopartikel dengan efisiensi penyalut terbesar(94,64%) pada Kitosan 1% : STPP 1%, dan loading capacity terbesar (31,28%) diperoleh pada variasi Kitosan 1% :1,5%. Profil pelepasan dengan karakter penyalut yang resisten pada kondisi lambung diperoleh oleh variasi Kitosan 1%:1,5%. Determinasi analitis secara FTIR membuktikan bahwa ekstrak telah tersalut dalam penyalutnya yang dibuktikan dengan adanya gugus alkohol. Morfologi FESEM dengan ukuran partikel terkecil diperoleh pada variasi kitosan 1%: STPP 1% dengan ukuran terkecil 132 nm. Penurunan kadar kolesterol oleh daun keji beling terjadi melalui penghambatan enzim HMG KoA Reduktase. Penelitian ini membuktikan bahwa ekstrak keji beling mampu berperan sebagai inhibitor dalam menghambat enzim HMG-KoA dengan persentase inhibisi 15%-17,8%.
ABSTRACT Nasty Shard (Strobilanthes crispus) is one of herbs that utilized as antihypercholesterolemia with phytosterol as active compound. Producing nanoparticle of nasty shard as drug delivery is to obtain efectiveness drug to released target. This research was design to obtain released profile assay of nasty shard nanoparticle in simulated digestive fluid with concentration variation of nanoparticle and inhibition assay of nasty shard extract to inhibit HMG CoA Reductase.This resarch consist of 4 stages those are extraction of nasty shard leaves, nanoparticle designed, release profile assay and inhibition assay of HMG CoA Reductase. This research produce nanoparticle with highest encapsulation efficiency (94,64%) obtained by chitosan concentration 1% and STPP 1%, while the highest loading capacity (31,28%) was obtained by chitosan concentration 1% and STPP 1,5%. Released profile assay show nanoparticle characteristic which resistant in gastric condition with chitosan consentration 1% and STPP 1,5%. FTIR analysis show extract has encapsulated by alcohol group. Morphology by FESEM of smallest particle sized (132 nm) Obtained by chitosan concentartion 1% and STPP 1,5%. The decreasing of cholesterol by extract through inhibit HMG CoA Reductace. This research shown nasty shard leaves extract is capabable of acting as inhibitor of HMG CoA Reductase enzime with percentage inhibition from15%-17,8%
;Nasty Shard (Strobilanthes crispus) is one of herbs that utilized as antihypercholesterolemia with phytosterol as active compound. Producing nanoparticle of nasty shard as drug delivery is to obtain efectiveness drug to released target. This research was design to obtain released profile assay of nasty shard nanoparticle in simulated digestive fluid with concentration variation of nanoparticle and inhibition assay of nasty shard extract to inhibit HMG CoA Reductase.This resarch consist of 4 stages those are extraction of nasty shard leaves, nanoparticle designed, release profile assay and inhibition assay of HMG CoA Reductase. This research produce nanoparticle with highest encapsulation efficiency (94,64%) obtained by chitosan concentration 1% and STPP 1%, while the highest loading capacity (31,28%) was obtained by chitosan concentration 1% and STPP 1,5%. Released profile assay show nanoparticle characteristic which resistant in gastric condition with chitosan consentration 1% and STPP 1,5%. FTIR analysis show extract has encapsulated by alcohol group. Morphology by FESEM of smallest particle sized (132 nm) Obtained by chitosan concentartion 1% and STPP 1,5%. The decreasing of cholesterol by extract through inhibit HMG CoA Reductace. This research shown nasty shard leaves extract is capabable of acting as inhibitor of HMG CoA Reductase enzime with percentage inhibition from15%-17,8%
, Nasty Shard (Strobilanthes crispus) is one of herbs that utilized as antihypercholesterolemia with phytosterol as active compound. Producing nanoparticle of nasty shard as drug delivery is to obtain efectiveness drug to released target. This research was design to obtain released profile assay of nasty shard nanoparticle in simulated digestive fluid with concentration variation of nanoparticle and inhibition assay of nasty shard extract to inhibit HMG CoA Reductase.This resarch consist of 4 stages those are extraction of nasty shard leaves, nanoparticle designed, release profile assay and inhibition assay of HMG CoA Reductase. This research produce nanoparticle with highest encapsulation efficiency (94,64%) obtained by chitosan concentration 1% and STPP 1%, while the highest loading capacity (31,28%) was obtained by chitosan concentration 1% and STPP 1,5%. Released profile assay show nanoparticle characteristic which resistant in gastric condition with chitosan consentration 1% and STPP 1,5%. FTIR analysis show extract has encapsulated by alcohol group. Morphology by FESEM of smallest particle sized (132 nm) Obtained by chitosan concentartion 1% and STPP 1,5%. The decreasing of cholesterol by extract through inhibit HMG CoA Reductace. This research shown nasty shard leaves extract is capabable of acting as inhibitor of HMG CoA Reductase enzime with percentage inhibition from15%-17,8%
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Depok: Fakultas Teknik Universitas Indonesia, 2015
S59792
UI - Skripsi Membership  Universitas Indonesia Library
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Muhammad Rafly Atthariq
"Latar Belakang Prevalensi obesitas dunia maupun Indonesia terus meningkat. Pada obesitas, terjadi peningkatan sintesis kolesterol hati dan dislipidemia yang berisiko menyebabkan kematian. Ketumbar diduga memiliki efek anti dislipidemia dengan menginhibisi enzim HMG-KoA reduktase. Oleh sebab itu, peneliti ingin meneliti pengaruh ekstrak biji ketumbar pada ekspresi HMG-KoA reduktase dalam sintesis kolesterol hati tikus obesitas. Metode Studi eksperimental melibatkan 29 tikus Wistar yang dibagi menjadi 5 kelompok: pakan standar, pakan standar yang diberi ekstrak ketumbar, pakan standar yang setelahnya diberi pakan tinggi lemak sekaligus ekstrak ketumbar, pakan tinggi lemak, dan pakan tinggi lemak yang diberi ekstrak ketumbar. Ketumbar diberi dengan dosis 100 mg/kgBB selama 12 minggu. Selajutnya, jaringan hati dinekropsi dan RNA diekstraksi. Kemudian, dilakukan analisis RNA menggunakan quantitative real time reverse transcriptase polymerse chain reaction (qRT-PCR) dan ekspresi relatif HMG-KoA reduktase dihitung dengan metode Livak. Hasil Tidak terdapat peningkatan signifikan (p > 0.05) ekspresi relatif mRNA HMG-KoA reduktase pada hati kelompok kontrol obes dibandingkan kontrol normal. Penurunan tidak signifikan (p > 0.05) dari ekspresi relatif enzim juga terlihat pada kelompok normal yang diberi ekstrak ketumbar (dibanding kontrol normal) maupun obes yang diberi ekstrak ketumbar (dibanding kontrol obes). Kesimpulan Efek ekstrak etanol biji ketumbar dosis 100 mg/kgBB selama 12 minggu tidak memiliki dampak signifikan kuratif maupun preventif) dalam menurunkan sintesis kolesterol de novo hati melalui inhibisi ekspresi mRNA HMG-KoA reduktase pada tikus obesitas pasca pemberian pakan tinggi lemak.

Introduction The global prevalence of obesity, including in Indonesia, continues to increase. In obesity, there is an increase in hepatic cholesterol synthesis and dyslipidemia which carries the risk of causing death. Coriander is thought to have anti-dyslipidemic effects by inhibiting the HMG-CoA reductase enzyme. Therefore, researcher wants to analyze the effect of coriander seed extract on HMG-CoA reductase expression in liver cholesterol synthesis in obese rats. Method 29 Wistar rats are involved in this experimental study and divided into 5 groups: standard feed, standard feed given coriander extract, standard feed which was then changed to a high-fat diet and simultaneously given coriander extract, high-fat feed, and high-fat diet given coriander extract. Coriander was given at a dose of 100 mg/kgBW for 12 weeks. Next, the liver tissue was necropsied and RNA was extracted. RNA analysis was carried out using quantitative real time reverse transcriptase polymerse chain reaction (qRT-PCR). The relative expression of HMG-CoA reductase was calculated by the Livak method. Results There is no significant increase (p > 0.05) in the relative expression of HMG-CoA reductase mRNA in the liver of obese controls compared to normal controls. Non-significant decrease (p > 0.05) in the enzyme relative expression was also observed in the normal group given coriander extract (100 mg/kgBW) when compared to normal controls, as well as in the obese group given coriander extract when compared to obese controls. Conclusion The effect of coriander seed ethanol extract at a dose of 100 mg/kgBW for 12 weeks does not have a significant impact (curative or preventive) to reduce hepatic de novo cholesterol synthesis, particularly through the inhibition of HMG-CoA reductase mRNA expression in obese mice following the consumption of a high-fat diet."
Jakarta: Fakultas Kedokteran Universitas Indonesia, 2023
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UI - Skripsi Membership  Universitas Indonesia Library
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Najah Fadilah Putri
"Kementerian Kesehatan Republik Indonesia menyebutkan bahwa gangguan kardiovaskular, yang umumnya disebabkan oleh tingkat kolesterol yang tinggi, merupakan penyakit dengan tingkat kematian tertinggi di Indonesia. Meskipun statin sangat efektif dalam menurunkan kolesterol melalui inhibisi enzim HMG-CoA reduktase, berbagai penelitian telah membuktikan bahwa statin dapat menyebabkan berbagai efek samping, seperti kerusakan hati dan otot. Salah satu herba yang banyak ditemukan di Indonesia, daun kejibeling (Strobilanthes crispus), telah terbukti kaya akan senyawa fenolik dan flavonoid, serta dapat menurunkan kadar kolesterol. Penelitian ini bertujuan untuk mempelajari lebih lanjut potensi daun kejibeling sebagai obat penurun kolesterol dengan menentukan struktur, kemampuan inhibisi, serta jenis inhibisi senyawa fenolik dan flavonoid yang bersifat hipolipidemik dalam ekstrak etanol daun kejibeling. Hidrolisis enzimatik dengan bantuan selulase (suhu 30oC, waktu 2 jam) dan UA-ATPE (Ultrasound Assisted-Aqueous Two Phase Extraction) pada kondisi optimum (rasio pelarut 33% etanol (w/w) dan 14% (NH4)2SO4 (w/w), suhu 27oC, waktu 1 jam) digunakan untuk mengekstraksi daun kejibeling. Ekstrak kemudian difraksinasi menggunakan silica gel 60 dan eluen toluena-etil asetat 1:1 (v/v). Fraksi-fraksi yang terbentuk kemudian dianalisis lebih lanjut menggunakan LC-MS/MS-QToF dan uji inhibisi HMG-CoA reduktase untuk mengetahui kandungan serta sifat hipolipidemiknya. Salah satu isolat dari ekstrak kejibeling terbukti memiliki kemampuan inhibisi terhadap HMG-CoA reduktase sebesar 41,36% dengan tipe inhibisi non-kompetitif. Pada penelitian ini, ditemukan setidaknya 4 senyawa fenolik yang memiliki potensi untuk menurunkan kolesterol, yaitu Piceatannol,  Cyclocurcumin,  Xanthoangelol G, dan 7'-Carboxy-gamma-tocotrienol.

The Ministry of Health of the Republic of Indonesia stated that cardiovascular disorders, which are generally caused by high cholesterol levels, are the disease with the highest mortality rate in Indonesia. Although statins are very effective in lowering cholesterol through inhibition of the enzyme HMG-CoA reductase, various studies have shown that statins can cause various side effects, such as liver and muscle damage. One of the herbs commonly found in Indonesia, kejibeling leaf (Strobilanthes crispus), has been shown to be rich in phenolic and flavonoid compounds and can reduce cholesterol levels. This study aimed to further study the potential of kejibeling leaves as a cholesterol-lowering drug by determining the structure, inhibitory ability, and the type of inhibition of hypolipidemic phenolic and flavonoid compounds in the ethanol extract of kejibeling leaves. Enzymatic hydrolysis with the help of cellulase (temperature 30oC, time 2 hours) and UA-ATPE (Ultrasound Assisted-Aqueous Two Phase Extraction) at optimum conditions (solvent ratio 33% ethanol (w/w) and 14% (NH4)2SO4 (w/ w), temperature 27oC, time 1 hour) was performed to extract kejibeling leaves. The extract was then fractionated using silica gel 60 and toluene-ethyl acetate 1:1 (v/v) eluent. The formed fractions were further analyzed using LC-MS/MS-QToF and HMG-CoA reductase inhibition test to determine the content and hypolipidemic properties. One of the isolates from the kejibeling extract was shown to have the ability to inhibit HMG-CoA reductase of 41.36% with a non-competitive type of inhibition. In this study, found at least 4 phenolic compounds that have the potential to lower cholesterol, namely Piceatannol, Cyclocurcumin, Xanthoangelol G, and 7'-Carboxy-gamma-tocotrienol.
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Depok: Fakultas Teknik Universitas Indonesia, 2022
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UI - Skripsi Membership  Universitas Indonesia Library
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Kholid Abdul Hafidz
"Resveratrol diketahui memiliki banyak aktivitas biologis sebagai anti sindrom metabolik. Resveratrol dan turunannya dilaporkan banyak ditemukan pada bagian-bagian tanaman melinjo, terutama biji. Penelitian bertujuan untuk menganalisis aktivitas penghambatan aktivitas HMG CoA reduktase dan kadar resveratrol dari biji melinjo (Gnetum gnemon L.). Simplisia biji melinjo diekstraksi secara refluks menggunakan lima pelarut bertingkat berbeda kepolaran yaitu n-heksana, diklorometana, etil asetat, metanol, dan air. Tiap ekstrak ditetapkan kadar resveratrolnya dan diuji aktivitas penghambatannya terhadap HMG CoA reduktase.
Hasil analisis menunjukkan ekstrak etil asetat, diklorometana, dan metanol berturut-turut memiliki kandungan resveratrol dengan kadar sebesar 8190, 3184, 686 mg/kg simplisia kering. Ekstrak diklorometana, etil asetat, dan metanol memberikan persen penghambatan terhadap aktivitas HMG CoA reduktase 64,78%, 41,84%, 25,63%. Ekstrak diklorometana diuji IC50-nya didapatkan nilai sebesar 0,4037 μg/mL dibandingkan IC50 pravastatin 0,0373 μg/mL.
Hasil analisis ekstrak diklorometana menggunakan UPLC-MS memberikan data senyawa spesifik yaitu resveratrol, gnemonosida B, gnetin C, epsilon-viniferin dan gnetifolin K. Berdasarkan hasil ini, ekstrak diklorometana potensi terhadap penghambatan HMG CoA reduktase sehingga ke depannya dapat dikembangkan sebagai agen inhibitor HMG CoA reduktase.

Resveratrol has known as anti-metabolic syndrome agent. Resveratrol and its derivate successfully isolated from melinjo (Gnetum gnemon L.). Melinjo seed extract has been reported with many bilogical activities including antioxidant, antidiabetic, anticancer, antiinflammatory effect, antibacterial, and lipase-amylase inhibition. The research aimed to analyze HMG CoA reductase inhibitory activity and resveratrol assay quantification from melinjo seed extracts. Dried melinjo seeds were successively extracted by reflux method using five solvents with gradient polarity. Each of extracts was tested using HMG CoA Reductase Assay Kit Sigma Aldrich ©, to analyzed the inhibition activity.
Ethyl acetate extract showed their highest resveratrol assay in amount of 8190, 3184, 686 mg/kg dried seed. On the other hand, dichloromethane extract gave result as the highest inhibitory activity against HMG CoA Reductase with IC50 value is 0.4037 μg/mL. Further, dichloromethane extract subjected to UPLC-MS to define the exact constituent which are responsible for its inhibition.
Results showed that resveratrol, gnetin C, epsilon-viniferin and gnetifolin K, gnemonoside A/B appeared in dichloromethane extract. In conclusion, dichloromethane extract of Gnetum gnemon L. seed might suggest its role in inhibiting HMG CoA reductase activity."
Depok: Fakultas Farmasi Universitas Indonesia, 2016
S64922
UI - Skripsi Membership  Universitas Indonesia Library
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Agung Kristiyanto
"Ekstrak biji melinjo Gnetum gnemon L. diketahui berperan dalam aktivitas penghambatan HMG-KoA reduktase. Sedangkan iradiasi adalah salah satu metode dalam sterilisasi bahan alam. Studi ini bertujuan untuk mengetahui pengaruh iradiasi gama terhadap aktivitas penghambatan HMG-KoA reduktase dan angka lempeng total pada biji melinjo. Biji melinjo diiradiasi dengan berbagai dosis yaitu 0, 2,5, 5, 7,5, dan 10 kGy. Ekstraksi dilakukan dengan menggunakan metode refluks dengan pelarut etanol. Angka lempeng total ALT ditentukan menggunakan metode aerobic count plate melalui pengenceran suspensi serbuk biji melinjo. Sementara uji aktivitas penghambatan HMG-KoA reduktase menggunakan assay kit HMG-KoA reduktase. Dalam uji aktivitas penghambatan HMG-KoA reduktase, diperoleh persentase penghambatan oleh standar pravastatin sebesar 97,41 dengan IC50 76,70 nM. Ekstrak biji melinjo berbagai dosis iradiasi diuji aktivitas penghambatannya dan diperoleh persentase penghambatan tertinggi sebesar 97,30 pada dosis iradiasi 2,5 kGy. Pada penetapan ALT, serbuk biji melinjo berbagai dosis iradiasi menunjukkan tidak adanya pertumbuhan mikroba. Berdasarkan penelitian ini, dapat disimpulkan bahwa biji melinjo berada dalam kondisi steril dan iradiasi 2,5 kGy adalah dosis optimum untuk menghambat HMG-KoA reduktase secara signifikan.

Melinjo Gnetum gnemon L. seed extract is known to play a role in the inhibitory activity of HMG CoA reductase. Irradiation is a method to sterilize natural products. This study aimed to determine the effect of gamma irradiation on the inhibitory activity of HMG CoA reductase and total plate count TPC . Melinjo seeds were irradiated with various doses of 0, 2.5, 5, 7.5, and 10 kGy. The extraction was carried out by ethanol using reflux method. TPC was determined by aerobic count plates method using stock dilution of melinjo seeds powder suspensions. HMG CoA inhibitory activity was determined using HMG CoA reductase assay kit. In determination of HMG CoA reductase, the inhibitory percentage of pravastatin standard was 97.41 and the IC50 was 76.70 nM. Irradiated melinjo seed extracts were tested for inhibitory activity and the highest inhibition percentages were 97.30 of 2,5 kGy. In the determination of TPC, the powder of melinjo seeds for all irradiation doses showed no microbial growth. Based on this research, it can be concluded that non irradiated and irradiated melinjo seeds were free from microbial growth and the gamma irradiation dose of 2.5 kGy was optimum dose to inhibit HMG CoA reductase, significantly."
Depok: Fakultas Farmasi Universitas Indonesia, 2017
S69840
UI - Skripsi Membership  Universitas Indonesia Library
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Eka Febriani Sundari Fadhilah
"Salah satu terapi untuk mengatasi tinggi level kolesterol dengan menghambat enzim HMG-KoA reduktase pada biosintesis kolesterol. Penelitian sebelumnya pada hewan uji, ekstrak etanol Garcinia xanthochymus dapat menghambat peningkatan kolesterol.
Penelitian ini bertujuan untuk menguji aktivitas penghambatan enzim HMG-KoA reduktase pada ekstrak air Garcinia xanthochymus, penetapan kadar flavonoid dan fenol total, pembuatan sediaan teh herbal dari simplisia yang sudah dikarakterisasi dan uji hedonis. Pengujian aktivitas penghambatan HMG-KoA reduktase secara enzimatis, penetapan kadar flavonoid total secara kolorimetri AlCl3 dan penetapan kadar fenol total dengan Folin-Ciocalteu.
Hasil pengujian penghambatan enzim HMG-KoA reduktase tertinngi adalah ekstrak air 5 menit yaitu 46,45 4.1140. Hasil dari susut pengeringan memenuhi persyaratan < 10 sedangkan hasil kadar sari larut air 42,77 0,0255 , kadar sari larut etanol 45,52 0,0036, kadar abu total 10,77 0,0021, dan kadar abu tidak larut asam 4,42 0,002. Hasil penetapan kadar flavonoid total tertinggi adalah ekstrak 5 menit yaitu 24,213 mgQE/gr ekstrak.
Hasil penetapan kadar fenol total tertinggi adalah ekstrak 15 menit yaitu 12,171 mgGAE/gr ekstrak. Hasil uji hedonis pada parameter warna,aroma, dan rasa, adanya perbedaan signifikan pada uji kesukaan rasa. Berdasarkan hasil penelitain ini ekstrak air memiliki aktivitas penghambatan yang kecil terhadap enzim HMG-KoA reduktase.

One of the therapies that can be used to treat high cholesterol levels is by inhibiting the enzyme HMG CoA reductase inhibitors on biosynthesis cholesterol. Previous research conducted with animal test, Garcinia xanthochymus can inhibit the increase in cholesterol.
This research aims to test the inhibitory activity of the enzyme HMG Coa reductase on water extract of Garcinia xanthochymus, the determination of the levels of flavonoids and phenols, total manufacture of preparations of the herb tea simplisia already characterized and test the hedonist. Inhibitory activity of testing of HMG Coa reductase in enzimatis, the determination of the levels of total flavonoids in kolorimetri of AlCl3 and the determination of the levels of total phenols by Folin Ciocalteu.
Results of testing the inhibition of the enzyme HMG CoA reductase inhibitors showed that the water extract of 5 minutes has the highest percent inhibition activity is 46.45 4.1140, Results of drying shrinkage meets the requirements of drying shrinkage meets the requirements of <10% while the yield levels ..."
Depok: Fakultas Farmasi Universitas Indonesia, 2017
S69547
UI - Skripsi Membership  Universitas Indonesia Library
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Intan Fikri Purnama Sari
"Biji melinjo Gnetum gnemon L. diketahui mengandung senyawa fenolik yang mampu menghambat aktivitas HMG-KoA reduktase. Ionic liquid IL [bmim]Br merupakan green solvent, yang dengan menggunakan metode microwave assisted extraction MAE dilaporkan dapat menarik senyawa fenolik setara dengan pelarut organik.
Penelitian ini bertujuan untuk menentukan kadar fenolik total dan penghambatan aktivitas HMG-KoA reduktase dari ekstrak biji melinjo yang diekstraksi menggunakan metode [bmim]Br-MAE. Biji melinjo diekstraksi dengan berbagai faktor ekstraksi berdasarkan Response Surface Methodology RSM dengan jumlah total ekstraksi yaitu 17 runs menggunakan metode [bmim]Br-MAE.
Ekstrak yang diperoleh ditentukan kadar fenolik total dan penghambatan aktivitas HMG-KoA reduktase. Pada penentuan penghambatan aktivitas HMG-KoA reduktase, persentase inhibisi pada standar pravastatin yaitu 96.25 dengan IC50 76.72 nM. Semua ekstrak diuji dan didapati bahwa ekstrak pada run ke-11 merupakan yang paling optimum dengan persentase inhibisi 95.89 dan kadar fenolik total 1.96 mg GAE/ g simplisia.
Berdasarkan penelitian ini, dapat disimpulkan bahwa metode [bmim]Br-MAE dapat digunakan sebagai salah satu metode ekstraksi untuk senyawa fenolik yang bertanggung jawab pada penghambatan aktivitas HMG-KoA reduktase.

Melinjo Gnetum gnemon L. seed was known to contain phenolic compounds that capable of inhibiting the activity of HMG CoA reductase. Ionic liquid IL bmim Br is a green solvent, with microwave assisted extraction MAE method, reported to be able to extract phenolic compounds comparable to organic solvent.
This study aims to determine the total phenolic content and inhibitory activity of HMG CoA reductase from melinjo seed extract which was extracted using bmim Br MAE method. Melinjo seeds were extracted with various extraction factors based on Response Surface Methodology RSM with a total of 17 runs, using bmim Br MAE method.
The obtained extract was determined of total phenolic content and inhibitory activity of HMG CoA reductase. In determination of HMG CoA reductase inhibition activity, the inhibitory percentage of pravastatin standard was 96.25 and the IC50 is 76.72 nM. All the extracts were tested and was found that the 11th run was the optimum condition with 95.89 inhibition and total phenolic content of 1.96 mg GAE g the seed powder.
Based on this study, it can be concluded that bmim Br MAE method can be used as an extraction method for the extraction of phenolic compounds, that responsible on HMG CoA reductase inhibitory activity."
Depok: Fakultas Farmasi Universitas Indonesia, 2017
S68055
UI - Skripsi Membership  Universitas Indonesia Library
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Herra Williany Monalissa
"Kolesterol yang tinggi dalam darah merupakan faktor resiko dari aterosklerosis yang menyebabkan berbagai penyakit. Intervensi farmakologik utama untuk mengurangi kadar kolesterol ialah menghambat enzim HMG-KoA reduktase. Salah satu tanaman dari marga Garcinia, yakni Garcinia dulcis memiliki potensi sebagai aktivitas antikolesterol. Berdasarkan kemotaksonomi, Garcinia latissima Miq. diperkirakan juga mempunyai potensi aktivitas antikolesterol.
Penelitian ini bertujuan untuk menguji penghambatan aktivitas HMG-KoA reduktase ekstrak air daging buah G.latissima dengan perbedaan durasi infusa, serta penetapan kadar flavonoid total dan fenol total pada ekstrak. Selain itu, simplisia daging buah G. latissima Miq. akan dibuat dalam bentuk teh dan dilakukan uji hedonis untuk mengetahui tingkat kesukaan masyarakat pada teh tersebut.
Hasil uji menunjukkan ekstrak air daging buah G. latissima Miq 100 ppm dengan infusa selama 5, 10 dan 15 menit menghambat aktivitas enzim HMG-KoA reduktase berturut turut sebesar 11,32; 29,02; 13,03%. Ekstrak 10 menit dengan penghambatan enzim terbesar memiliki kadar flavonoid total sebesar 31,24 mg QE/gram ekstrak dan kadar fenol total sebesar 4,64 mg GAE/gram ekstrak. Sedangkan kesukaan masyarakat terhadap warna, aroma, rasa teh celup formula A buah G. latissima Miq. berturut turut sebesar 30; 30; 20% dan terhadap formula B berturut turut sebesar 40; 33,3; 50%.

High cholesterol in the blood is a risk factor of atherosclerosis that causes various diseases. The main pharmacologic intervention to reduce cholesterol levels is inhibiting the HMG-CoA reductase enzyme. One of the genera of Garcinia, Garcinia dulcis, has potential as an anticholesterol. Based on chemotaxonomy, Garcinia latissima Miq. is also estimated to have a potency as anticholesterol.
This study aims to test the inhibition activity of HMG-CoA reductase from mesocarp water extract of G.latissima with different duration of infusions, as well as determination of total flavonoid and total phenol content in the extract. In addition, the simplicia of the mesocarp of G. latissima Miq, will be made as herbal tea and a hedonic test is performed to find out the degree of liking for the tea.
The test results showed inhibitory activity of 100 ppm G. latissima Miq. mesocarp water extract with infusion for 5, 10 and 15 minute repectively 11.32; 29.02; 13.03%. The 10 minute extract with the largest enzyme inhibition had total flavonoids content of 31.24 mg QE / gram extract and total phenol content of 4.64 mg GAE / gram extract. The result of hedonic test for the color, aroma, flavor of herbal tea formula A respectively 30; 30; 20% and formula B respectively for 40; 33.3; 50%."
Depok: Fakultas Farmasi Universitas Indonesia, 2017
S69331
UI - Skripsi Membership  Universitas Indonesia Library
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