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Ditemukan 3 dokumen yang sesuai dengan query
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Nanang Yunarto
Abstrak :
Hiperlipidemia merupakan faktor risiko utama dalam aterosklerosis dan penyakit jantung koroner. Fraksi etil asetat dari ekstrak daun gambir (Uncaria gambir Roxb.) mengandung metabolit sekunder katekin yang memiliki potensi sebagai antihiperlipidemia dan menghambat aterosklerosis. Penelitian ini bertujuan untuk menguji efek antihiperlipidemia dan pencegahan aterosklerosis dari fraksi etil asetat daun gambir secara in vivo. Penelitian menggunakan 36 ekor tikus putih jantan galur Sprague Dawley berusia 2,5 bulan dibagi secara acak menjadi enam kelompok yaitu kelompok normal, kontrol negatif (air suling), kontrol positif (simvastatin 2 mg/200 g bb), dosis I (fraksi 5 mg/200 g bb), dosis II (fraksi 10 mg/200 g bb) dan dosis III (20 mg/200 g bb). Tikus diinduksi dengan makanan yang mengandung kolesterol dan lemak jenuh selama 28 hari, kecuali kontrol normal. Selanjutnya tikus diberi pengobatan selama 28 hari. Efek antihiperlipidemia dianalisa dengan mengukur kadar kolesterol total, trigliserida, LDL dan HDL. Untuk melihat penghambatan aterosklerosis dilakukan pengukuran tebal aorta dan pengamatan gambaran sel busa. Hasil penelitian menunjukkan bahwa jika dibandingkan dengan kontrol negatif, dosis III mampu menghambat kenaikan berat badan, menurunkan kadar kolesterol total, trigliserida, LDL, tebal aorta, sel busa dan meningkatkan HDL (p<0,05). Hasil pada dosis I hanya menurunkan kadar kolesterol total dan LDL, sedangkan pada dosis II mampu menghambat kenaikan berat badan, menurunkan kadar kolesterol total, trigliserida, LDL dan tebal aorta namun tidak meningkatkan kadar HDL. Disimpulkan bahwa fraksi etil asetat daun gambir pada dosis 20 mg / 200 g bb mempunyai aktivitas antihiperlipidemia dan penghambatan aterosklerosis terbaik.
Hyperlipidemia is the main risk factor for atherosclerosis and coronary heart disease. Ethyl acetate fraction of gambier leaves extract (Uncaria gambir Roxb.) contain secondary metabolite of catechin which have the potency to be used as antihyperlipidemic and inhibits atherosclerosis. This study aimed to examine the antihyperlipidemia effect and to prevent atherosclerosis by ethyl acetate fraction of gambir leaves extract by in vivo. Thirty six male of Sprague Dawley strain 2,5 months old were randomly divided into six groups: normal group, negative group (aqueous), positive group (simvastatin 2 mg/200 g bw), dose I (5 mg/200 g bw fraction), II (10 mg/200 g bw fraction) and III (20 mg/200 g bw fraction) groups. Rats were induced with high cholesterol and saturated fat feeds for 28 days, except normal group. Furthermore, rats were given the treatment for 28 days. Antihyperlipidemia effects analyzed by measuring total cholesterol, triglycerides, LDL and HDL levels. The atherosclerosis inhibition was determined by measure of aortic thickness and foam cell observation. The results showed (when compared than negative control), dose III can inhibit body weight gain, decrease of total cholesterol, triglycerides, LDL levels, aortic thickness, foam cells and increase HDL level (p <0.05). The results of dose I only decrease total cholesterol and LDL levels (p<0,05), whereas dose II can inhibit body weight gain, decrease total cholesterol, triglycerides, LDL levels and aortic thickness (p<0,05) but did not increase HDL levels (p>0,05). The conclusion is the ethyl acetate fraction gambier leaves at dose 20 mg/200 g bb had the best antihiperlipidemia effect and inhibit of atherosclerosis.
Depok: Fakultas Farmasi Universitas Indonesia, 2014
T43262
UI - Tesis Membership  Universitas Indonesia Library
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Hadi Sudarjat
Abstrak :
[ABSTRAK
Doksorubisin merupakan obat pilihan utama dalam terapi kanker, tetapi memiliki indeks terapi rendah. Sehubungan dengan alasan tersebut maka pada penelitian ini dilakukan pembuatan dan karakterisasi nanopartikel emas (AuNP) - gom arab terfungsionalisasi doksorubisin untuk meningkatkan indeks terapinya. AuNP dibuat dengan mereduksi HAuCl4 dengan natrium sitrat kemudian ditambahkan gom arab sebagai penstabil (GA-AuNP) dan setelah itu difungsionalisasikan dengan doksorubisin (Dox-GA-AuNP). Dox-GA-AuNP dikarakterisasi dengan spektrofotometri UV-Vis, spektrofotometri infra merah, dynamic light scattering dan transmission electron microscopy. Doksorubisin memiliki spektrum serapan Uv-Vis maksimal pada panjang gelombang 479 nm, sedangkan Dox-GA-AuNP memiliki spektrum serapan Uv-Vis maksimal pada panjang gelombang 485 nm. Spektrum IR Dox-GA-AuNP menunjukan adanya pita serapan ikatan keton dan amin yang berbeda dengan pita serapan ikatan keton dan amin pada doksorubisin bebas. Ukuran partikel Dox-GA-AuNP adalah 113,6 nm dengan karakteristik monodispersi (PDI 0,423), dan memiliki morpologi berbentuk sferis. Pengujian sitotoksik dilakukan terhadap doksorubisin bebas dan Dox-GA-AuNP. Hasil yang diperoleh menunjukkan bahwa pengujian sitotoksisitas Dox-GA-AuNP pada lini sel MCF-7 memberikan IC50 0,28 μg/mL sedangkan doksorubisin bebas memiliki IC50 1,305 μg/mL. Doksorubisin yang telah difungsionalisasikan dengan GAAuNP dapat mengurangi ikatan protein dengan serum albumin manusia dari 62,51 ± 2,21 % (Dox Bebas) menjadi 22,91 ± 10,9 % (Dox-GA-AuNP). Dengan menurunnya ikatan protein dan meningkatnya efek sitotoksisitas pada Dox-GAAuNP dibandingkan dengan doksorubisin bebas dapat disimpulkan bahwa Dox- GA-AuNP dapat meningkatkan indeks terapi doksorubisin. ABSTRACT
Doxorubicin is a drug of choice for cancer therapy, but it has low index therapy. For that reason the reseach had been done to make and characterize gold nanoparticle - acacia gum functionalized doxorubicin to increase the therapy index. Gold nanoparticles was prepared by reducing HAuCl4 with sodium citrate and gum arabic was added as a steric stabilizer, and then being functionalized by doxorubicin (Dox-GA-AuNP). Dox-GA-AuNP was characterized by UV - Vis spectrophotometry, infrared spectrophotometry, dynamic light scattering and electron microscopy transmission. The UV-Vis spectrometry showed that doxorubicin has a maximum spectrum absorbtion of 479 nm while Dox-GAAuNP is 485 nm, FTIR spectrofotometcy showed that Dox-GA-AuNP has ketone and amine bonds absorption band which is different from absorption band of doxorubicin. The particle size of Dox-GA-AuNP is 113.6 nm with Poly Dispersion Index of 0.423, and morphological shape is spheric. The cytotoxic assay was conducted on MCF-7 cell line for Dox-GA-AuNP and doxorubicin. The results showed that Dox-GA-AuNP provides IC50 of 0.28 mg / mL while the IC50 of doxorubicin is 1.305 mg / mL. Protein bond of Dox-GA-AuNP is 22.91 ± 10.9 % while protein bond of doxorubicin is 62.51 ± 2.21 %. The decreasing of protein bond and increasing of cytotoxicity effect of Dox-GA-AuNP compared to doxorubicin conclude that Dox-GA-AuNP can increase the therapy index of doxorubicin.;Doxorubicin is a drug of choice for cancer therapy, but it has low index therapy. For that reason the reseach had been done to make and characterize gold nanoparticle - acacia gum functionalized doxorubicin to increase the therapy index. Gold nanoparticles was prepared by reducing HAuCl4 with sodium citrate and gum arabic was added as a steric stabilizer, and then being functionalized by doxorubicin (Dox-GA-AuNP). Dox-GA-AuNP was characterized by UV - Vis spectrophotometry, infrared spectrophotometry, dynamic light scattering and electron microscopy transmission. The UV-Vis spectrometry showed that doxorubicin has a maximum spectrum absorbtion of 479 nm while Dox-GAAuNP is 485 nm, FTIR spectrofotometcy showed that Dox-GA-AuNP has ketone and amine bonds absorption band which is different from absorption band of doxorubicin. The particle size of Dox-GA-AuNP is 113.6 nm with Poly Dispersion Index of 0.423, and morphological shape is spheric. The cytotoxic assay was conducted on MCF-7 cell line for Dox-GA-AuNP and doxorubicin. The results showed that Dox-GA-AuNP provides IC50 of 0.28 mg / mL while the IC50 of doxorubicin is 1.305 mg / mL. Protein bond of Dox-GA-AuNP is 22.91 ± 10.9 % while protein bond of doxorubicin is 62.51 ± 2.21 %. The decreasing of protein bond and increasing of cytotoxicity effect of Dox-GA-AuNP compared to doxorubicin conclude that Dox-GA-AuNP can increase the therapy index of doxorubicin., Doxorubicin is a drug of choice for cancer therapy, but it has low index therapy. For that reason the reseach had been done to make and characterize gold nanoparticle - acacia gum functionalized doxorubicin to increase the therapy index. Gold nanoparticles was prepared by reducing HAuCl4 with sodium citrate and gum arabic was added as a steric stabilizer, and then being functionalized by doxorubicin (Dox-GA-AuNP). Dox-GA-AuNP was characterized by UV - Vis spectrophotometry, infrared spectrophotometry, dynamic light scattering and electron microscopy transmission. The UV-Vis spectrometry showed that doxorubicin has a maximum spectrum absorbtion of 479 nm while Dox-GAAuNP is 485 nm, FTIR spectrofotometcy showed that Dox-GA-AuNP has ketone and amine bonds absorption band which is different from absorption band of doxorubicin. The particle size of Dox-GA-AuNP is 113.6 nm with Poly Dispersion Index of 0.423, and morphological shape is spheric. The cytotoxic assay was conducted on MCF-7 cell line for Dox-GA-AuNP and doxorubicin. The results showed that Dox-GA-AuNP provides IC50 of 0.28 mg / mL while the IC50 of doxorubicin is 1.305 mg / mL. Protein bond of Dox-GA-AuNP is 22.91 ± 10.9 % while protein bond of doxorubicin is 62.51 ± 2.21 %. The decreasing of protein bond and increasing of cytotoxicity effect of Dox-GA-AuNP compared to doxorubicin conclude that Dox-GA-AuNP can increase the therapy index of doxorubicin.]
Depok: Fakultas Farmasi Universitas Indonesia, 2014
T43258
UI - Tesis Membership  Universitas Indonesia Library
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Amalia Purnamasari Zainal
Abstrak :
[ABSTRAK
Osteoporosis pada wanita menopause terjadi karena menurunnya hormon estrogen, pada kondisi ini dikaitkan dengan peningkatan resorpsi tulang oleh osteoklas serta penurunan kadar kalsium tulang. Kulit buah delima diketahui mengandung asam elagat yang diduga berpotensi sebagai selective estrogen receptor modulators (SERMs) alami. Tujuan penelitian ini untuk melihat potensi yang terkandung dalam fraksi air dari ekstrak metanol kulit buah delima dalam menurunkan aktivitas osteoklas dan meningkatkan kadar kalsium tulang. Metode ekstraksi menggunakan pelarut metanol dilanjutkan dengan fraksinasi bertingkat yang dimulai dari pelarut n-heksan, etil asetat kemudian air. Studi eksperimental dengan rancangan acak lengkap in vivo pada tikus betina (Sprague-Dawley) sebanyak 42 tikus yang dibagi secara acak kedalam 7 kelompok terdiri dari: sham; OVX; ES (OVX+estradiol 0,1 mg/kg BB, p.o); TAM (OVX+tamoxifen 10 mg/kg BB, p.o); PI (OVX+fraksi air kulit buah delima 50 mg/kg BB, p.o); PII (OVX+ fraksi air kulit buah delima 100 mg/kg BB, p.o); PIII (OVX+ fraksi air kulit buah delima 200 mg/kg BB, p.o). Perlakuan dilakukan setiap hari selama 28 hari. Hasil penelitian yang diperoleh bila dibandingkan dengan kelompok OVX, kelompok PIII (2,55 ± 0,70) memiliki jumlah sel osteoklas yang lebih rendah dibandingkan OVX (10,45 ± 1,55), sedangkan pada kadar kalsium tulang pemberian dosis 200 mg/kg BB pada kelompok PIII juga mengalami peningkatan sebesar 2005,96 ± 404,91 bila dibandingkan dengan OVX yang memiliki kadar kalsium tulang sebesar 1277,69 ± 322,59. Kesimpulan yang diperoleh adalah pemberian fraksi air kulit buah delima pada dosis 200 mg/kg BB mampu menurunkan jumlah sel osteoklas dan meningkatkan kadar kalsium tulang pada pada tikus yang diovariektomi.
ABSTRACT
Osteoporosis in postmenopausal women occurs because of decreased estrogen, This condition is due to the increasment of bone resorption by osteoclasts and the decreasment of bone calcium levels. Pomegranate peel consist of ellagic acid which potentially work as a natural SERMs. The purpose of this study is to investigate the potential contained in the water fraction of the methanol extract of pomegranate peel in reducing the number of osteoclasts and increasing the bone calcium levels. The extraction method was conducted using methanol solvent followed by fractionation terraced that is began from solvent n-hexane, ethyl acetate and then methanol. The number of rats female samples in this experimental studies in vivo (Sprague-Dawley) were 42 rats, which is divided into 7 groups induced by ovariectomy (OVX) except the sham group. The group consists of sham; OVX; ES (OVX + estradiol 0.1 mg / kg, body weight p.o); TAM (OVX + tamoxifen 10 mg / kg, body weight p.o); PI (OVX + water fraction of pomegranate peel 50 mg / kg, body weight p.o); PII (OVX + water fraction of pomegranate peel 100 mg / kg, body weight p.o); PIII (OVX + water fraction of pomegranate peel 200 mg / kg, body weight p.o). The treatment is done every day for 28 days. The results of the PIII group is 2,55 ± 0,70 which is lower than the OVX group (10,45 ± 1,55), whereas in bone calcium levels, dosage of 200 mg / kg body weight in PIII group showing an increase of 2005.96 ± 404.91 compared to OVX the bone calcium levels by 1277.69 ± 322.59. The conclusion is water fraction of pomegranate peel application at a dose of 200 mg / kg body weight able to reduce the num;Osteoporosis in postmenopausal women occurs because of decreased estrogen, This condition is due to the increasment of bone resorption by osteoclasts and the decreasment of bone calcium levels. Pomegranate peel consist of ellagic acid which potentially work as a natural SERMs. The purpose of this study is to investigate the potential contained in the water fraction of the methanol extract of pomegranate peel in reducing the number of osteoclasts and increasing the bone calcium levels. The extraction method was conducted using methanol solvent followed by fractionation terraced that is began from solvent n-hexane, ethyl acetate and then methanol. The number of rats female samples in this experimental studies in vivo (Sprague-Dawley) were 42 rats, which is divided into 7 groups induced by ovariectomy (OVX) except the sham group. The group consists of sham; OVX; ES (OVX + estradiol 0.1 mg / kg, body weight p.o); TAM (OVX + tamoxifen 10 mg / kg, body weight p.o); PI (OVX + water fraction of pomegranate peel 50 mg / kg, body weight p.o); PII (OVX + water fraction of pomegranate peel 100 mg / kg, body weight p.o); PIII (OVX + water fraction of pomegranate peel 200 mg / kg, body weight p.o). The treatment is done every day for 28 days. The results of the PIII group is 2,55 ± 0,70 which is lower than the OVX group (10,45 ± 1,55), whereas in bone calcium levels, dosage of 200 mg / kg body weight in PIII group showing an increase of 2005.96 ± 404.91 compared to OVX the bone calcium levels by 1277.69 ± 322.59. The conclusion is water fraction of pomegranate peel application at a dose of 200 mg / kg body weight able to reduce the num, Osteoporosis in postmenopausal women occurs because of decreased estrogen, This condition is due to the increasment of bone resorption by osteoclasts and the decreasment of bone calcium levels. Pomegranate peel consist of ellagic acid which potentially work as a natural SERMs. The purpose of this study is to investigate the potential contained in the water fraction of the methanol extract of pomegranate peel in reducing the number of osteoclasts and increasing the bone calcium levels. The extraction method was conducted using methanol solvent followed by fractionation terraced that is began from solvent n-hexane, ethyl acetate and then methanol. The number of rats female samples in this experimental studies in vivo (Sprague-Dawley) were 42 rats, which is divided into 7 groups induced by ovariectomy (OVX) except the sham group. The group consists of sham; OVX; ES (OVX + estradiol 0.1 mg / kg, body weight p.o); TAM (OVX + tamoxifen 10 mg / kg, body weight p.o); PI (OVX + water fraction of pomegranate peel 50 mg / kg, body weight p.o); PII (OVX + water fraction of pomegranate peel 100 mg / kg, body weight p.o); PIII (OVX + water fraction of pomegranate peel 200 mg / kg, body weight p.o). The treatment is done every day for 28 days. The results of the PIII group is 2,55 ± 0,70 which is lower than the OVX group (10,45 ± 1,55), whereas in bone calcium levels, dosage of 200 mg / kg body weight in PIII group showing an increase of 2005.96 ± 404.91 compared to OVX the bone calcium levels by 1277.69 ± 322.59. The conclusion is water fraction of pomegranate peel application at a dose of 200 mg / kg body weight able to reduce the num]
Depok: Fakultas Farmasi Universitas Indonesia, 2014
T43260
UI - Tesis Membership  Universitas Indonesia Library