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Erick Wonggokusuma
"ABSTRAK
Pendahuluan. Osteoarthritis (OA) adalah sebuah penyakit sendi degeneratif yang
menyebabkan disabilitas dengan prevalensi yang terus meningkat. Hormon
pertumbuhan memiliki efek regenerasi tulang rawan secara langsung melalui
stimulasi sel kondroblas dan proses morphoangiogenesis juga melalui faktor
pertumbuhan secara sistemik. Penelitian ini bertujuan untuk mengetahui manfaat
suntikan sendi dengan hormon pertumbuhan pada kasus Osteoarthritis.
Metode Penelitian. Penelitian dilakukan di Rumah Sakit Hewan Institut
Pertanian Bogor pada bulan Mei hingga September 2015. Desain penelitian adalah
randomized post test only control group. Sejumlah 21 ekor kelinci Selandia Baru
putih, berat 1.9-2.6kg, usia 7-8 bulan. Kelinci dibagi secara acak menjadi
kelompok kontrol (NaCl 0.9%), suntikan hormon pertumbuhan (4iu), dan suntikan
asam hyaluronat (6mg) . Dengan metode acak tersamar dilakukan suntikan
kolagenase tipe II C. Histolyticum pada hari 1 dan ke 4 pada lutut kiri, kemudian
tindakan penyuntikan dilakukan sebanyak tiga kali dengan selang waktu 1
minggu. Evaluasi dengan periode kepincangan, skoring makroskopis, histologis
dilakukan pada minggu ke-8 pasca penyuntikan pertama.
Temuan Penelitian. Berdasarkan hasil penelitian ditemukan periode kepincangan
pada grup yang diberikan hormon pertumbuhan lebih singkat, dan bermakna
secara statistik dibandingkan dengan grup kontrol (p<0.001), grup asam
hyaluronat (p<0.03), dan grup hormon pertumbuhan (p<0.001). Evaluasi skor
makroskopik dengan skor yoshimi menunjukan bahwa kelompok hormon
pertumbuhan memiliki kerusakan tulang rawan yang lebih ringan jika
dibandingkan dengan grup kontrol (p=0.001) dan grup asam hyaluronat (p=0.04).
Skoring histopatologis menggunakan skor modifikasi Mankin menunjukan pada
kelompok dengan hormon pertumbuhan memiliki angka terendah dibandingkan
grup lainnya (p=0.001), grup kontrol (p=0.001), grup asam hyaluronat (p=0.015).
Kesimpulan. Suntikan hormon pertumbuhan ke dalam sendi memiliki efektifitas
yang lebih baik dibandingkan dengan Asam hyaluronat pada model osteoarthritis.
Hormon pertumbuhan memberikan harapan baru sebagai alternatif dalam terapi
osteoarthritis.ABSTRACT
Introduction. Osteoarthritis is a degenerative joint disorder that cause disability
for patients all over the globe, with an increasing number of patients. Growth
hormone (GH) works trough direct and indirect effect on cartilage regeneration by
chondroblast stimulation, stimulation of growth factors and morphoangiogenesis
process. Further research is needed to know the effects of intra articular joint
injection of growth hormone using validated animal model and reliable outcome
measurement.
Methods. This study was conducted in Animal Hospital of Agricultural Institute
Bogor west Java, from May to September 2015. The design of the study was
randomized posttest only control group. Male white New Zealand rabbit (n=21)
weighted 1.9-2.6kg, age 6-7months were used in this study. The sample was
randomized and divided into three groups. All groups recieved intra articular
injection of type 2 collagenase (Sigma® Missouri) 2mg at the left knee on day 1
and 4. Injections of growth hormone (4iu), hyaluronic acid (HA) (6mg) and saline
(0.6ml) were done at 2 weeks after collagenase injection once a week for
consecutive 3 weeks. Evaluation of weight and lameness periode is done
periodically, histopathological and macroscopic score were done at 8 weeks since
the first injection.
Result. The lameness priode for control group is significantly longer than both of
the experimental groups (p<0.001), HA (p<0.03), and GH (p<0.001).
Macroscopic score evaluation taken from the lateral condyle of the left femur
showed that the GH group received significantly less cartilage damage than the
HA group (P=0.04) and placebo (P=0.01). Histopathological score was also found
lowest at the GH group (p=0.001), with significant difference in control
(p=0.001), and HA group (p=0.015).).
Conclusion. Intraarticular injection of growth hormone is found to be more
effective compared to hyaluronic acid on rabbit osteoarthritis model. This results
showed promising result for intra articular injection of GH as an alternative
treatment for osteoarthritis.;Introduction. Osteoarthritis is a degenerative joint disorder that cause disability
for patients all over the globe, with an increasing number of patients. Growth
hormone (GH) works trough direct and indirect effect on cartilage regeneration by
chondroblast stimulation, stimulation of growth factors and morphoangiogenesis
process. Further research is needed to know the effects of intra articular joint
injection of growth hormone using validated animal model and reliable outcome
measurement.
Methods. This study was conducted in Animal Hospital of Agricultural Institute
Bogor west Java, from May to September 2015. The design of the study was
randomized posttest only control group. Male white New Zealand rabbit (n=21)
weighted 1.9-2.6kg, age 6-7months were used in this study. The sample was
randomized and divided into three groups. All groups recieved intra articular
injection of type 2 collagenase (Sigma® Missouri) 2mg at the left knee on day 1
and 4. Injections of growth hormone (4iu), hyaluronic acid (HA) (6mg) and saline
(0.6ml) were done at 2 weeks after collagenase injection once a week for
consecutive 3 weeks. Evaluation of weight and lameness periode is done
periodically, histopathological and macroscopic score were done at 8 weeks since
the first injection.
Result. The lameness priode for control group is significantly longer than both of
the experimental groups (p<0.001), HA (p<0.03), and GH (p<0.001).
Macroscopic score evaluation taken from the lateral condyle of the left femur
showed that the GH group received significantly less cartilage damage than the
HA group (P=0.04) and placebo (P=0.01). Histopathological score was also found
lowest at the GH group (p=0.001), with significant difference in control
(p=0.001), and HA group (p=0.015).).
Conclusion. Intraarticular injection of growth hormone is found to be more
effective compared to hyaluronic acid on rabbit osteoarthritis model. This results
showed promising result for intra articular injection of GH as an alternative
treatment for osteoarthritis.;Introduction. Osteoarthritis is a degenerative joint disorder that cause disability
for patients all over the globe, with an increasing number of patients. Growth
hormone (GH) works trough direct and indirect effect on cartilage regeneration by
chondroblast stimulation, stimulation of growth factors and morphoangiogenesis
process. Further research is needed to know the effects of intra articular joint
injection of growth hormone using validated animal model and reliable outcome
measurement.
Methods. This study was conducted in Animal Hospital of Agricultural Institute
Bogor west Java, from May to September 2015. The design of the study was
randomized posttest only control group. Male white New Zealand rabbit (n=21)
weighted 1.9-2.6kg, age 6-7months were used in this study. The sample was
randomized and divided into three groups. All groups recieved intra articular
injection of type 2 collagenase (Sigma® Missouri) 2mg at the left knee on day 1
and 4. Injections of growth hormone (4iu), hyaluronic acid (HA) (6mg) and saline
(0.6ml) were done at 2 weeks after collagenase injection once a week for
consecutive 3 weeks. Evaluation of weight and lameness periode is done
periodically, histopathological and macroscopic score were done at 8 weeks since
the first injection.
Result. The lameness priode for control group is significantly longer than both of
the experimental groups (p<0.001), HA (p<0.03), and GH (p<0.001).
Macroscopic score evaluation taken from the lateral condyle of the left femur
showed that the GH group received significantly less cartilage damage than the
HA group (P=0.04) and placebo (P=0.01). Histopathological score was also found
lowest at the GH group (p=0.001), with significant difference in control
(p=0.001), and HA group (p=0.015).).
Conclusion. Intraarticular injection of growth hormone is found to be more
effective compared to hyaluronic acid on rabbit osteoarthritis model. This results
showed promising result for intra articular injection of GH as an alternative
treatment for osteoarthritis."
Fakultas Kedokteran Universitas Indonesia, 2015
SP-PDF
UI - Tugas Akhir  Universitas Indonesia Library
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Karlah Lifie Riani Mansauda
"ABSTRAK
Tanaman yang mengandung antioksidan dapat dikembangkan menjadi sediaan kosmetik krim anti-kerut karena kemampuannya sebagai anti-kolagenase dan anti-elastase. Rumput laut coklat Sargassum sp. diketahui mengandung antioksidan polifenol seperti senyawa floroglusinol. Penelitian terhadap Sargassum sp. perlu dilakukan karena pemanfataan rumput laut belum maksimal. Penelitian ini bertujuan untuk mendapatkan krim Sargassum sp yang stabil dan memiliki aktivitas anti-kolagenase serta anti-elastase. Sediaan krim Sargassum plagyophyllum diuji total fenolik dengan metode Folin- ciocalteu dan diuji aktivitas anti-kolagenase dan elastasenya. Hasil menunjukkan krim Sargassum plagyophyllum memiliki total fenolik yaitu 5,597 0,74 mg PGE/g ekstrak kering, dan memiliki nilai IC50 anti-kolagenase krim sebesar 20,83 ?g/mL sedangkan nilai IC50 anti-elastase sebesar 183,73 ?g/mL. Kesimpulannya bahwa sediaan krim Sargassum plagyophyllum stabil dan memiliki aktivitas anti-kolagenase serta anti-elastase.

ABSTRACT
Anti wrinkle cosmetic preparations which function as anti collagenase and anti elastase is caused by the ability of antioxidants inside the plants. Brown seaweed Sargassum sp. is known to contain polyphenol antioxidants such as phloroglucinol compounds. The number of seaweed production is high but its utilization has not been maximized. This study to obtain cream containing Sargassum sp. extract which is stable and have anti collagenase and anti elastase activity.The total phenolic content of Sargassum plagyophyllum cream was tested with Folin ciocalteu method and then tested for its anti collagenase and elastase activity. The result show that the Sargassum plagyophyllum cream formulation has total phenol content of 5.597 0.74 mg PGE g of dried extract, IC50 value of cream as anti collagenase was 20.83 g mL and as an anti elastase value of 183.73 g mL. In conclusion, Sargassum plagyophyllum can be developed as a stable cream and has anti collagenase and anti elastase activity. "
Depok: Fakultas Farmasi Universitas Indonesia, 2018
T50609
UI - Tesis Membership  Universitas Indonesia Library
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Thia Amalia
"Daun senggani (Melastoma malabathricum L.) digunakan sebagai penyembuh luka secara empiris. Senyawa yang bertanggungjawab atas aktivitas farmakologi daun senggani adalah senyawa fenolik, flavonoid, dan glikosida. Senyawa fenolik dan flavonoid diketahui memiliki aktivitas anti-aging. Selain itu, senyawa flavonoid dan fenolik tidak stabil dan sulit terpenetrasi di kulit. Tujuan penelitian ini untuk mengetahui aktivitas anti-aging ekstrak daun senggani dan mendapatkan serum fitosom ekstrak daun senggani yang stabil dan memiliki penetrasi yang baik. Uji aktivitas anti-aging dilakukan secara in vitro terhadap dua enzim, yaitu elastase dan kolagenase. Tiga formula fitosom dibuat dengan metode hidrasi lapis tipis berdasarkan perbandingan massa ekstrak dan fosfolipid. Fitosom dikarakterisasi berdasarkan morfologi, ukuran partikel dan zeta potensial, profil spektrum FTIR, dan efisiensi penjerapan.
Formula fitosom terpilih diformulasikan ke dalam sediaan serum, kemudian diuji stabilitas dan penetrasi secara in vitro dengan sel difusi Franz. Ekstrak daun senggani memiliki aktivitas anti-elastase (IC50 95,553 µg/mL) dan anti-kolagenase (62,933 µg/mL). Fitosom ekstrak daun senggani (F2, 1:1 b/b) memiliki bentuk sferis, Dv90 638,00±62,39 nm, PDI 0,503±0,05, zeta potensial (ZP) -38,3±1,6 mV, efisiensi penjerapan 92,22±0,31%. Spektrum IR membuktikan terjadinya kompleks antara ekstrak dan fosfolipid dalam fitosom. Serum fitosom tidak mengalami perubahan ukuran partikel, namun mengalami penurunan kadar kuersetin setelah 12 minggu penyimpanan pada suhu 25oC. Fluks serum fitosom adalah 0,56±0,01 µg/cm2/jam, sedangkan fluks serum ekstrak adalah 1,28±0,02 µg/cm2/jam. Dapat disimpulkan bahwa ekstrak daun senggani berpotensi sebagai bahan kosmetik anti-aging, fitosom ekstrak daun senggani stabil pada suhu rendah, dan serum ekstrak terpenetrasi lebih baik dibandingkan dengan serum fitosom. Penelitian lebih lanjut dibutuhkan untuk lebih meningkatkan stabilitas dan penetrasi ekstrak daun senggani. 

Senggani leaves (Melastoma malabathricum L.) was used traditionally to treat wound because of flavonoids and phenolic compound. Flavonoid and phenolic compounds were known to have anti-aging activity. However, flavonoids and phenolic compounds were poor in stability and skin permeation. The aim of this study was to evaluate the anti-aging activity of the extracts, then formulate and evaluate serum dosage form containing senggani leaves extract-loaded phytosomes. Anti-aging activity was evaluated by in vitro elastase inhibitor and collagenase inhibitor. The extract was formulated into three formulations of phytosomes with thin layer method. The phytosomes were characterized in terms of particle morphology, particle size, zeta potential, profile spectra of FTIR, and entrapment efficiency. The selected phytosome formula was formulated into serum dosage form and evaluated its stability and in vitro penetration study using Franz diffusion cell. The senggani leaves extract has anti-elastase and anti collagenase with IC50 of  95.553 µg/mL and 62.933 µg/mL, respectively.
The selected phytosome formula (F2, 1:1 w/w) has a spherical shape, Dv90 of 638.00±62.39 nm, PDI 0.503±0.05, zeta potential of -38.3±1.6 mV, and entrapment efficiency of 92.22±0.31%. Molecular interaction between extract and phospholipid was confirmed from FTIR spectrum. Serum phytosome was physically stable, but chemically unstable after 12 weeks storage in 25oC. According to the in vitro penetration study, the diffusion flux of quercetin as marker from phytosome and extract serum was 0.7945 µg/cm2/h and 1.835 µg/cm2/h, respectively. In conclusion, the extract could be a potential anti-aging, the phytosomes were stable in low temperature, and the skin penetration of the extract serum was much better than the phytosomes serum. Further study was required to improve stability and penetration of the extract. 
"
Depok: Fakultas Farmasi Universitas Indonesia, 2019
T51863
UI - Tesis Membership  Universitas Indonesia Library
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Siregar, Fazwishni
"Tujuan umum: Mengetahui profil keamanan dan efek getah J. curcas terhadap jaringan gigi dan periapeks dalam persiapan untuk memanfaatkan pemakaian bahan alami getah J. curcas pada radang pulpa.
Tujuan khusus (1) Mengetahui kandungan golongan senyawa getah J. curcas. (2) Mengetahui sitotoksisitas getah J. curcas. (3) Mengetahui toksisitas akut pemberian secara oral dosis tunggal getah J. curcas pada hewan percobaan. (4) Mengetahui aktivitas hemolisis getah J. curcas pada darah manusia secara in vitro. (5) Mengetahui sifat mutagenisitas getah J. curcas. (6) Mengetahui efek getah J. curcas terhadap pembebasan interleukin-1β oleh sel makrofag. (7) Mengetahui efek getah J. curcas terhadap pembebasan kolagenase pada set fibroblast. (8) Mengetahui efek histopatologik getah J. curcas terhadap pulpa dan jaringan periapeks gigi pada hewan percobaan. (9) Mengetahui efek getah J. curcas terhadap kekerasan macro jaringan keras gigi manusia secara in vitro. (10) Mengetahui efek getah J. curcas terhadap jaringan keras gigi manusia dalam hal kelarutan unsur kalsium dan fosfat secara in vitro.
Metode penelitian: Disain penelitian eksperimental dan eksplorasi. Penelitian dibagi atas (1) skrining fitokimia, (2) tahap 1 dan (3) tahap 2 evaluasi biologik getah J. curcas. Untuk standardisasi getah J. curcas diambil dari satu petak tanaman dalam satu musim, kemudian diukur pH, volume basah, diliofilisasi, diukur berat kering, dan disimpan pada -20°C sebagai sampel.
(1). Skrining fitokimia getah J. curcas. Analisis kualitatif golongan senyawa diidentifikasi dari ekstrak eter, etil asetat, dan air.
(2). Uji toksisitas
1. Uji sitotoksisitas. (1) Metoga agar overlay. Getah J. curcas dan kontrol diserap oleh cakram selulosa, kemudian diletakkan di atas permukaan agar yang menutupi selapis sel Fib L929 yang telah diwarna neutral red. Evaluasi berdasar luas zona dekolorisasi dan zona lisis yang terbentuk setelah 24 jam. (2) Assay MTT. Getah J. curcas dalam medium diberikan pada kultur set Fib L929 cell line dan sel primer fibroblast gingiva manusia yang tumbuh dalam mikroplat 96-sumur. Setelah 1-4 hari, dilakukan assay MTT. Evaluasi berdasar perbandingan nilai OD kontrol dan perlakuan.
2. Uji toksisitas akut. Mencit diberi getah J. curcas secara intragastrik sebanyak 1 kali. Dihitung LD5O berdasar jumlah mencit yang mati. Dibandingkan antara kelompok perlakuan dan kontrol dalam hal tanda toksisitas, berat badan selama 2 minggu, pemeriksaan makroskopik dan mikroskopik organ tubuh.
3. Uji hemolisis. Darah dicampur dengan berbagai konsentrasi getah J. curcas. Evaluasi berdasar pembebasan hemoglobin, dibandingkan OD kelompok perlakuan dengan kontrol positif air, dan kontrol negatif salin.
4. Uji mutagenisitas. Getah J. curcas dikultur dengan bakteri S. typhi dan E. coil mutan. Evaluasi berdasar penghitungan koloni reversi bakteri, dibandingkan kelompok perlakuan, kontrol positif dan kontrol negatif.
(3) Efek getah J. curcas terhadap makrofag dan fibroblast
1. Efek getah J. curcas terhadap pembebasan IL-1β. Lima dosis getah J. curcas dimasukkan ke dalam kultur makrofag peritoneum mencit BALB/c, secara bersamaan, sebelum, atau sesudah pemberian LPS. Setelah 1 dan 2 hari, IL-1β dalam supernatan diukur secara ELISA dengan Quantikine IL-1β for mouse kit.
2. Efek getah J. curcas terhadap pembebasan kolagenase oleh fibroblast. Empat dosis getah J. curcas dan IL-1β dimasukkan dalam kultur sel primer fibroblast gingiva manusia. Setelah 1-4 hari kolagenase dalam supematan diukur dengan assay kolagenase. Hasil degradasi kolagen dipisahkan dengan SDS-PAGE. Pita 3/4 αA diukur dengan program komputer Adobe Photo.
(4) Efek histopatologik getah J. curcas pada jaringan pulpa dan periapeks. Getah J. curcas dimasukkan ke dalam kavitas gigi monyet. Setelah 3 hari, gigi diproses untuk pembuatan sediaan histologik. Evaluasi berdasar perbandingan pemeriksaan keadaan mikroskopik jaringan pulpa dan peripeks dalam hal inflamasi dan nekrosis, antara kelompok kontrol dan perlakuan.
(5) Efek getah J. curcas terhadap jaringan keras gigi.
1. Efek getah J. curcas terhadap kekerasan mikro dentin dan email. Mahkota gigi premolar dibelah 4 longitudinal, lalu ditanam di dalam akrilik dengan 1 permukan tidak tertutup akrilik. Setelah direndam dalam 3 konsentrasi getah J. curcas, permukaan dentin dan email diberi indentasi oleh intan Knoop. Evaluasi berdasar perbandingan KHN kelompok kontrol dan perlakuan.
2. Efek getah J. curcas terhadap kelarutan kalsium dan fosfat. Mahkota gigi premolar utuh dibelah 4 secara longitudinal, lalu direndam dalam 3 konsentrasi getah J. curcas. Setelah 1-3 hari, kalsium dan fosfat yang larut dalam rendaman diukur berturut-turut dengan alat atomic absorption spectrophotometer (AAS) dan spektrofotometer (metoda asam askorbat).
Hasil penelitian pH getah J. curcas rata-rata 3,49 ± 0,09 dan perbandingan berat kering/volume basah 15,12 ± 0,31%.
(1) Skrining fitokimia: getah J. curcas mengandung golongan senyawa sterol, aglikon flavon, tanin, senyawa pereduksi, glikosida steroid, poliose, dan saponin.
(2) Uji toksisitas
1.(1) Sitotoksisitas getah J. curcas pada metoda agar overlay ditemukan zona dekolorisasi indeks 2 dari 5 indeks zona. Tak ada lisis sel, bentuk sel masih jelas.
(2) Assay MTT: pads getah J. curcas kadar 0,25% terhadap Fib L929 dan kadar 0,12% terhadap fibroblast gingiva, sel nekrosis.
2.(1) LD50 > 5 g/kg BB, sehingga getah J. curcas dapat diklasifikasi dalam toksik ringan. (2) Tidak ada perbedaan berat badan. (3) Tidak ada perbedaan makroskopik dan mikroskopik organ tubuh yang diperiksa. (4) Terjadi inaktivitas pada hari 1 pada kelompok perlakuan, selanjutnya tidak ada perbedaan.
3. Aktivitas hemolisis getah J. curcas 15% adalah 6,5% dibanding air. Tidak ada hemolisis pada konsentrasi getah J. curcas yang lebih rendah.
4. Tidak ada aktivitas mutagenisitas getah J. curcas.
(3) Efek getah J. curcas terhadap makrofag dan fibroblast
1. (1) LPS meningkatkan pembebasan 1L-1β oleh makrofag. (2) Pemberian getah J. curcas menghambat pembebasan 1L-1β oleh makrofag.
2. (1) Makin lama waktu kultur, produksi kolagenase makin banyak. (2) Getah J. curcas menurunkan pembebasan kolagenase oleh fibroblast.
(4) Efek histopatologik getah J. curcas terhadap jaringan pulpa dan periapeks
(1) Inflamasi dan nekrosis terj adi pads daerah yang terbatas dekat dengan daerah yang kontak dengan getah J. curcas. Di bawahnya terdapat jaringan pulpa normal. (2) Tingkat inflamasi pulpa kelompok perlakuan tidak lebih parah dari kelompok kontrol. (3) Tidak ada radang periapeks pads kelompok kontrol dan perlakuan.
(5) Efek getah J. curcas terhadap jaringan keras gigi.
1. Efek getah J. curcas terhadap kekerasan mikro dentin dan email. (1) Kekerasan mikro dentin tidak berbeda bermakna pada 1 dan 2 hari perendaman getah J. curcas antara kelompok kontrol dan perlakuan. Namur lebih kecil setelah 3 hari pada konsentrasi getah 15%. (2) Kekerasan mikro email tidak berbeda antara kelompok kontrol dan perlakuan pada 1 dan 3 hari, Namun lebih kecil setelah 2 hari pada konsentrasi getah J. curcas 15%.
2. Kadar kalsium dan fosfat yang larut meningkat sesuai dengan kenaikan konsentrasi getah J. curcas. Namun lama perendaman tidak berpengaruh secara bermakna terhadap kelarutan kalsium.
Kesimpulan (1) Getah J. curcas mengandung sterol, aglikon flavon, tanin, senyawa pereduksi, glikosida steroid, poliose, dan saponin. (2) Tahap 1 evaluasi biologik: getah J. curcas relatif aman pada hewan percobaan berdasar LD50>5 g/kg BB sehingga termasuk dalam klasifkasi toksik ringan; hemolisis 6,5% dibanding air; tidak mutagen; dan sitotoksik dengan nekrosis koagulasi. (3) Uji tahap 2: getah J. curcas cukup efektif dalam menanggulangi pulpalgia, berdasar nekrosis pulpa terbatas, tidak ada kelainan periapeks; kekerasan mikro email dan dentin tidak turun pada 1 hari; menghambat pembebasan IL-1β dan kolagenase. Namun getah melarutkan kalsium dan fosfat.
Kesimpulan penelitian: penelitian dapat dilanjutkan ke tahap uji klinik atau tahap 3.

Biological Study on the Effects of Jatropha Curcas (Euphorbiaceae) Latex on Dental and Periapical TissuesObjective: The objective of this study was to evaluate the safety level and the effects of J. curcas latex on dental and periapical tissues. The aims in details were (1) to identify the main classes of chemical constituent in J. curcas latex; (2) to evaluate the cytotoxicity of J. curcas latex; (3) to determine the acute toxicity of J. curcas latex after single oral administration on mice; (4) to assess hemolytic activity of J. curcas latex; (5) to evaluate mutagenic activity of J. curcas latex; (6) to evaluate the effect on J. curcas latex of IL-1 il release from macrophages; (7) to evaluate the effect of J. curcas latex on collagenase release from fibroblasts; (8) to assess the histopathological effects of J. curcas latex on monkey dental pulp and periapical tissues; (9) to determine the effects of J. curcas latex to dentin and enamel micro-hardness; (10) to assess the effects of J. curcas latex on dissolving calcium and phosphate.
Methods: Research design was experimental and explorative. To standardize the sample, J. curcas latex was collected from Balittro, Bogor in 1997, then the pH and wet volume were measured, the latex was lyophilized, dry weight was measured, and latex was stored at-20°C as sample. Biological evaluation was grouped into (1) phytochemical sreening, (2) toxicity test, (3) effects of J.curcas latex on cell, (4) effects of J.curcas latex on dental pulp and periapical tissues, and (5) effects of J.curcas latex on dental hard tissues,
(1). Phytochemical screening: the main classes of chemical constituents of J. curcas latex were analyzed qualitatively from ether, ethyl acetate, and water extracts.
(2). Toxicity test
1. Cytotoxicity test. (1) Agar overlay technique. J. curcas latex was imbibed in cellulose discs and put on the surface of agar overlaying a neutral red stained Fib L929 cell monolayer. Evaluation was judged on zone index and lysis index after 24 hours incubation. (2) MT assay. J. curcas latex was added to human gingival fibroblasts and Fib L929 cell culture in 96-well micro-plates. After 1-4 days of incubation, MTT assay was performed. Evaluation was based on comparing the OD values of control and test groups.
2. Acute toxicity. A single dose of J. curcas latex was given to male and female mice, intragastrically. LD50 was determined based on mortality rate. Assessment was also performed on 2 weeks observations of body weight, macroscopic and microscopic examinations of several organs.
3. Hemolysis test. Blood was mixed with several concentrations of J. curcas latex. The result was the extent of hemolysis expressed based on the absorbance of the test samples, negative and positive controls.
4. Mutagenicity test. L curcas latex was added to the S. ryphi and E. coil mutans culture. Assessment was based on bacterial revertant colonies, compare to positive and negative controls.
(3) Effects of J.curcas latex on macrophages and fibroblasts
1. Effects of .T. curcas latex on the release of IL-1 β from macrophages. Five doses of J. curcas latex from 75-1200 μg/ml were added into the culture of BALB/c mice peritoneal macrophages, along with, after, or before addition of LPS. Following 1-3 days of incubation, IL-1P presence in supernatant was measured by ELISA using Quantikine ]L-1P for mouse kit.
2. Effects of J. curcas latex on the release of collagenase. Four doses of J. curcas latex from 37.5-300 µg/ml were added to human gingival fibroblasts cell culture. After 1-4 days of incubation, collagenase in the supernatant was assayed with collagen. The degradation products were then separated by SDS-PAGE and the density of 3/4 αA bands was measured semi quantitatively by Adobe Photo computer program.
(4) Effects of J.curcas latex on dental pulp and periapical tissues. The latex of J. curcas was brought in contact with dental pulp and sealed. Assessment was based on the presence of inflammation and necrosis in dental pulp and periapical tissues, histopathologically.
(5) Effects of J.curcas latex on dental hard tissues
1. Effects of J. curcas latex on dentin and enamel micro-hardness. Intact premolar crowns were cut longitudinally into 4 fragments, followed by embedding of each fragment in acrylats leaving 1 free surface. The fragments were then soaked in 3 concentrations of J. curcas latex from 3.7-15% for 1-3 days. The dentin and enamel micro-hardness were assessed by Knoop hardness measurement.
2. Effects of J. curcas latex on dissolved calcium and phosphate. Intact premolar crowns were cut longitudinally into 4 fragments, followed by soaking the fragments in 3 concentration of J. curcas latex from 3.7-15% for 1-3 days. The dissolved calcium and phosphate were measured according to atomic absorption spectrophotometer and spectrophotometer (ascorbic acid method), respectively.
Results: The mean ± SD of J. curcas latex pH was 3.49 ± 0.09. The dry weight/wet volume was 15.12 ± 0.31%.
(1). Phytochemical screening: sterols, flavone aglycones, tannins, reducing compounds, sterol glycosides, poliose, and saponins were identified in J. curcas latex.
(2) Toxicity test
1. (1) Agar overlay technique. 2-5 mm decoloration zones were observed, indicating that J. curcas latex was cytotoxic. No lysis of cells was observed within the decolorized zone. (2) MTT assay. At 2.5 mg/ml J. curcas latex no living Fib L929 cells were observed, while the same result was shown at 1.2 mg/ml J. curcas latex on human gingival fibroblasts.
2. LD50 was more than 5 g/kg BW, hence dry J. curcas latex may be classified into mildly toxic substance. No significant body weight difference was observed. Macroscopic and microscopic examination on several organs showed no differences between test and control groups.
3. 6,5% hemolytic activity of 15% J. curcas latex compared to water was observed, while no hemolisis was observed with lower concentrations of latex.
4. No mutagenic ativity was observed with J. curcas latex.
(3) Effects of J.curcas latex on macrophages and fibroblasts
1. (1) LPS increased the release of IL-1β. (2) J. curcas latex inhibited the release of IL-lβ from macrophages.
2. (1) The longer the duration of incubation, the more collagenase was released. (2)
J. curcas latex decreased collagenase release by human gingival fibroblast.
(4) Effects of I. curcas latex on dental pulp and periapical tissues. Inflammation and necrosis were observed in a limited area, which was in direct contat with J. curcas latex, underneath was normal pulp. Inflammation in the pulp of test group was not greater than in the control group. No inflammation or necrosis in periapical tissues was observed in all groups.
(5) Effects of J. curcas latex on dental hard tissues
1. (1) The micro-hardness of dentin was not lowered after 1 and 2 days treatment, but lower after 3 days at 15% J. curcas latex. (2) The enamel microhardness was not decreased after 1 and 3 days immersion in J. curcas latex, but decreased after 2 days at 15% J. curcas latex.
2. The calcium and phosphate release were increased in accordance to the concentration of J. curcas latex. The duration of treatment did not influence the release of calcium, while it influenced the release of phosphate.
Conclusions (1) J. curcas latex contains sterols, flavone aglycones, tannins, reducing compounds, sterol glycosides, poliose, and saponins. (2) Level 1 biological evaluation: J. curcas latex is relatively safe in animals based on LD50>5 g/kg BW, 6,5% hemolysis compared to water, not mutagenic, but cytotoxic with coagulative necrosis. (3) Level 2 biological evaluation: J. curcas latex seems to be effective in relieving pulpal pain. It caused coagulative necrosis in pulp, which was in direct contact with J. curcas latex while the tissue underneath was normal. It did not cause inflammation of periapical tissues, and did not lower the dentin and enamel micro-hardness after 1 day of exposure, but it lowered the microhardness after 3 days. It inhibited IL-1β and collagenase release. It dissolved dental calcium and phosphate."
2000
D373
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