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Abstrak :
ABSTRACT
The effects of dietary food fortified with orotic acid (1.0%) on liver function were studied in rats. The rats fed with orotic acid promoted liver triglyceride content markedly, that was 5-fold higher than that of the control. The liver malondialdehyde (MDA) content increased by 10%, but the gluthation peroxidase (GSH-Px) activity decreased by 50%. The serum aspartate aminotransferase (AST) and alanine aminotransferase (ALT) activities increased by 25% and 30%, respectively. Therefore, the decreased GSH-Px activity was associated with the promotions of AST, ALT, and the liver MDA levels. In conclusion: dietary orotic acid promotes lipid peroxidation but reduces the rate of the antioxidant enzyme. Therefore, dietary food fortified with orotic acid attenuates the liver function.

Abstrak :
ABSTRACT
Advances in tissue engineering techniques have made it possible to use human cells as biological material. This has enabled pharmacological studies to be conducted to investigate drug effects and toxicity, to clarify the mechanisms underlying diseases, and to elucidate how they compensate for impaired organ function. Many researchers have tried to construct artificial organs using these techniques, but none has succeeded in growing a whole organ. Unlike other digestive organs with complicated functions, such as the processing and absorption of nutrients, the esophagus has the relatively simple function of transporting content, which can be replicated easily by a substitute. In regenerative medicine, various combinations of materials have been applied, including scaffolding, cell sources, and bioreactors. Exciting results of tissue engineering techniques for the esophagus have been reported. In animal models, replacing full-thickness and full-circumferential defects remains challenging because of stenosis and leakage after implantation. Although many reports have manipulated various scaffolds, most have emphasized the importance of both epithelial and mesenchymal cells for the prevention of stenosis. However, the results of repair of partial full-thickness defects and mucosal defects have been promising. Two successful approaches for the replacement of mucosal defects in a clinical setting have been reported, although in contrast to the many animal models, there are few pilot studies in humans. We review the recent results and evaluate the future of regenerative medicine for the esophagus.

Abstrak :
ABSTRAK Karsinoma ovarium adalah salah satu keganasan paling mematikan di bidang ginekologik. Penyebab keganasan belum diketahui pasti dan umumnya tidak memiliki gejala klinik yang jelas. Karsinoma ovarium tipe I khususnya karsinoma endometrioid dan karsinoma sel jernih diketahui dapat berasal dari endometriosis. Karsinoma yang berasal dari endometriosis dikenal sebagai endometriosis-associated ovarian carcinoma (EAOC). Pengembangan model hewan coba karsinoma ovarium yang berhubungan dengan endometriosis diperlukan untuk penelitian dasar dan uji klinik menggantikan jaringan manusia. Pada penelitian ini dikembangkan model hewan coba karsinoma ovarium dengan teknik autoimplantasi dan induksi DMBA. Penelitian ini mengunakan blok parafin dari tikus yang sebelumnya telah mendapatkan operasi plasebo (SHAM), autoimplantasi endometrium, kombinasi autoimplantasi endometrium dan induksi DMBA yang dikorbankan pada minggu ke-5,10, dan 20. Dilakukan penilaian histopatologik dan pulasan imunohistokimia ARID1A dengan penilaian persentase positivitas pada 200 sel. Penelitian ini menghasilkan lesi endometriosis atipik sebanyak 1 (20%) dan karsinoma sel jernih sebanyak 1 (20%) pada implantasi dan induksi DMBA 10 minggu dan karsinoma endometrioid sebanyak 100% pada kelompok induksi DMBA. Pulasan ARID1A tidak menunjukkan perbedaan bermakna (p=0,313) pada seluruh kelompok perlakuan.

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ABSTRACT Ovarian carcinoma is one of the most deadly malignancies in the gynecologic field. The cause of malignancy is not known for sure and generally do not have clear clinical symptoms. Type I ovarian carcinoma especially endometrioid carcinoma and clear cell carcinoma is known to originate from endometriosis. Carcinoma originating from endometriosis is known as endometriosis-associated ovarian carcinoma (EAOC). The development of experimental animal models of ovarian carcinoma associated with endometriosis is needed for basic research and clinical trials replace human tissue. In this study an experimental model of ovarian carcinoma was developed with autoimplantation and DMBA induction techniques.This study used paraffin blocks from mice that had previously received placebo surgery (SHAM), endometrial autoimplantation, combination of endometrial autoimplantation and DMBA induction and were sacrificed at 5,10 and 20 weeks. Assessment of ARID1A expression by assessing the percentage of positivity in 200 cells.This study resulted in 1 (20%) atypical endometriosis lesions and 1 (20%) clear cell carcinoma in 10 weeks DMBA implantation and 100% endometrioid carcinoma in the DMBA induction group. ARID1A ekspression did not show a significant difference (p = 0.313) in all treatment groups.

 

Abstrak :
ABSTRAK
Pendahuluan. Pemahaman dan publikasi mengenai aspek biologi sel osteosarkoma manusia di Indonesia masih terbatas, sehingga dibutuhkan suatu penelitian tentang isolasi, kultur dan karakterisasi sel osteosarkoma manusia secara in vitro dan pada model hewan secara in vivo. Penelitian ini bertujuan untuk mengetahui apakah sel osteosarkoma manusia dapat diisolasi dan dikultur secara in vitro dan secara in vivo pada hewan model tikus Sprague Dawley (SD). Metode Penelitian. Pada tahap pertama dilakukan isolasi dan kultur sel osteosarkoma dari 6 pasien pre-kemoterapi neoadjuvant dan 4 pasien telah mendapat kemoterapi neoadjuvant. Isolasi dan kultur dengan metode eksplant. Karakterisasi sel osteosarkoma dibuktikan dengan pemeriksaan morfologi sel, reverse transcriptase polymerase chain reaction (RT-PCR), immunofluorescence assay (IFA) dan imunositokimia. Tahap kedua menghasilkan model hewan tikus SD dengan inokulasi sel hasil kultur 1.106 sel per ekor ke intramedular femur distal (3 ekor) dan ke intramuskular gastroknemius dan soleus tibia proksimal (3 ekor). Pengukuran Alkali fosfatase serum dilakukan pada minggu ke-0, 4, dan 8, radiologi pada minggu ke-4 dan ke-8 dan histopatologi dilakukan pada minggu ke-8. Temuan Penelitian. Sitologi menunjukkan sel tumor dengan inti yang pleiomorfik, hiperkromatik, letak di tepi dan anak inti nyata. Pemeriksaan RT-PCR menunjukkan ekspresi gen positif terhadap marker STAT3, Nanog, OCT3/4 dan CD 133. Pada pemeriksaan IFA didapatkan hasil positif terhadap antibodi osteokalsin, alkali fosfatase, dan CD 133. Pada pemeriksaan imunositokimia didapatkan hasil positif terhadap antibodi alkali fosfatase dan osteokalsin. Tahap kedua, evaluasi radiologi tidak menunjukkan gambaran destruksi tulang maupun tumbuhnya massa pada soft tissue. Pada histopatologi gambaran jaringan yang normal. Simpulan. Sel osteosarkoma dapat diisolasi dan dikultur dari jaringan tumor pasien osteosarkoma serta menunjukkan karakterisasi sel sesuai gambaran osteosarkoma pada pasien penderita osteosarkoma. Belum dapat dilakukan pembuatan hewan model osteosarkoma dari hewan Tikus Sprague Dawley immunocompetent.

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ABSTRACT
Introduction. Understanding and publications about biological aspect of human osteosarcoma cells in Indonesia are scarce, so study about isolation, culture and characterization of by in vitro or in vivo are needed. This study aimed to understand whether human osteosarcoma cells could be isolated and cultured by in vitro and in vivo for animal model Sprague Dawley (SD) rat. Methods. First stage, isolation and culture of osteosarcoma cell from 6 patients with neoadjuvant prechemotherapy and 4 that already received neoadjuvant chemotherapy. Isolation and culture used explant method. Characterization used morphological examination of cells, reverse transcriptase polymerase chain reaction (RT-PCR), immunofluorescence assay (IFA) and immunocytochemistry. Objective of second stage was producing animal models experiment by inoculation of 1.106 cells intra medullary distal femur (3 animals) and to intramuscular gastrocnemius and soleus proximal tibia (3 animals). Serum alkaline phosphatase was checked at week 0,4 and 8, radiology week 4 and 8, and histopathology at week 8. Results. Cytology showed tumor cell with pleiomorphic, hyperchromatic nucleus on the edge and conspicuous nucleoli. RT-PCR examination was positive for gene expression in STAT3 marker, Nanog, OCT 3/4 and CD 133. IFA was positive for osteocalcin, alkaline phosphatase, and CD 133 antibodies. In immunocytochemical examination there were positive result of alkaline phosphatase and osteocalcin antibody. For second stage, radiology evaluation showed no bone destruction or mass growth in soft tissue. Histopathology showed normal tissue. Conclusions. Osteosarcoma cell could be isolated and cultured from osteosarcoma?s patient and showed cell characterization that corresponded with the picture of osteosarcoma cell in patient with osteosarcoma. Animal model of osteosarcoma in immunocompetent SD rat could not be done.

Abstrak :
Latar belakang: Karsinoma ovarium adalah salah satu keganasan paling mematikan di bidang ginekologik. Penyebab keganasan belum diketahui pasti dan umumnya tidak memiliki gejala klinik yang jelas. Karsinoma ovarium tipe I khususnya karsinoma endometrioid dan karsinoma sel jernih diketahui dapat berasal dari endometriosis. Karsinoma yang berasal dari endometriosis dikenal sebagai endometriosis-associated ovarian carcinoma (EAOC). Pengembangan model hewan coba karsinoma ovarium yang berhubungan dengan endometriosis diperlukan untuk penelitian dasar dan uji klinik menggantikan jaringan manusia. Pada penelitian ini dikembangkan model hewan coba karsinoma ovarium dengan teknik autoimplantasi dan induksi DMBA. Bahan dan cara kerja: Penelitian ini mengunakan blok parafin dari tikusyang sebelumnya telah mendapatkan operasiplasebo (SHAM), autoimplantasi endometrium, kombinasi autoimplantasi endometrium dan induksi DMBAyangdikorbankan pada minggu ke-5,10, dan 20. Dilakukan penilaian histopatologik dan pulasan imunohistokimia ARID1A dengan penilaian persentase positivitas pada 200 sel. Hasil: Penelitian ini menghasilkan lesi endometriosis atipik sebanyak 1 (20%) dan karsinoma sel jernih sebanyak 1 (20%)pada implantasi dan induksi DMBA 10 minggu dan karsinoma endometrioidsebanyak 100% pada kelompok induksi DMBA. Pulasan ARID1A tidak menunjukkan perbedaan bermakna (p=0,313) pada seluruh kelompok perlakuan. ...... Background: Ovarian carcinoma is one of the most deadly malignancies in the gynecologic field. The cause of malignancy is not known for sure and generally do not have clear clinical symptoms. Type I ovarian carcinoma especially endometrioid carcinoma and clear cell carcinoma is known to originate from endometriosis. Carcinoma originating from endometriosis is known as endometriosis-associated ovarian carcinoma (EAOC). The development of experimental animal models of ovarian carcinoma associated with endometriosis is needed for basic research and clinical trials replace human tissue. In this study an experimental model of ovarian carcinoma was developed with autoimplantation and DMBA induction techniques. Materials and methods: This study used paraffin blocks from mice that had previously received placebo surgery (SHAM), endometrial autoimplantation, combination of endometrial autoimplantation and DMBA induction and were sacrificed at 5,10 and 20 weeks. Assessment of ARID1A expression by assessing the percentage of positivity in 200 cells. Results: This study resulted in 1 (20%) atypical endometriosis lesions and 1 (20%) clear cell carcinoma in 10 weeks DMBA implantation and 100% endometrioid carcinoma in the DMBA induction group. ARID1A ekspression did not show a significant difference (p = 0.313) in all treatment groups.

Abstrak :
Fibrosis merupakan ciri khas dari chronic kidney diseases (CKD) dan model unilateral uereteral obstruction (UUO) mampu merekapitulasi semua fitur penting dari respon fibrogenik. Durasi induksi selama 2 minggu merupakan durasi induksi yang banyak digunakan dalam berbagai penelitian dengan model hewan UUO. Penelitian ini bertujuan untuk mengevaluasi tingkat keparahan cedera ginjal seiring dengan perpanjangan durasi induksi dan untuk mengetahui efisiensi durasi induksi 2 minggu, ditinjau dari parameter uji. Parameter uji dalam penelitian ini adalah kadar serum kreatinin sebagai parameter fungsional ginjal, serta fraksi area fibrosis interstisial, skor fibrosis perivaskuler, dan ketebalan dinding arteri sebagai parameter struktural ginjal. Digunakan 18 ekor tikus jantan galur Sprague-Dawley yang dibagi ke dalam 6 kelompok penelitian (n = 3); terdiri atas 3 kelompok induksi UUO dan 3 kelompok kontrol yang dioperasi palsu (sham), yang digunakan untuk pengujian efek durasi induksi 1 minggu, 2 minggu, dan 3 minggu. Model UUO dibuat dengan melakukan pengikatan pada posisi proksimal dan distal ureter kiri lalu melakukan pemotongan di antara kedua situs pengikatan tersebut. Pengorbanan terhadap tikus kelompok UUO dan Sham dilakukan pada hari ke-7, hari ke-14, atau hari ke-21 setelah operasi, untuk selanjutnya dilakukan isolasi organ dan sampel darah yang dibutuhkan untuk analisis parameter uji. Tingkat keparahan cedera ginjal meningkat seiring dengan perpanjangan durasi induksi, dengan tingkat cedera ginjal ditemukan paling tinggi pada kelompok yang diinduksi selama 3 minggu. Induksi 2 minggu efisien apabila ditinjau dari parameter fibrosis perivaskuler dan kadar serum kreatinin. ......Fibrosis is a characteristic of chronic kidney disease (CKD) and the unilateral ureteral obstruction (UUO) model is able to recapitulate all the important features of a fibrogenic response. Two weeks induction is widely used in various studies using UUO as an animal model. This study aims to evaluate the severity of kidney injury as a result of prolongation of induction and to determine the efficiency of 2 weeks induction, judged from the test parameters. Besides from serum creatinine levels as kidney functional parameter, interstitial fibrosis area fraction, perivascular fibrosis score, and arterial wall thickness were used as kidney structural parameters. 18 Sprague-Dawley strain male rats were divided into 6 study groups (n = 3); consisted of 3 UUO-induced groups and 3 sham-operated groups as a control group. The groups were used to evaluate the effects of induction duration of 1 week, 2 weeks and 3 weeks. The UUO model was made by making a knot at the proximal and distal position of the left ureter, then cutting the ureter area between the two sites. Sacrifices of the UUO and Sham group rats were carried out on the 7th, 14th, or the 21st day after the surgery, to isolate the organ and blood sample needed for parameters analysis. The severity of kidney injury increased as a prolongation of induction duration was done, with kidney injury rates found highest in the 3 weeks-induced group. 2-weeks induction was efficient when viewed from the parameters of perivascular fibrosis and serum creatinine levels.

Abstrak :
Sargassum polycystum diketahui secara in vitro memiliki aktivitas sitotoksik terhadap sel HCT-116 pada kolon yang diuji pada beberapa pelarut dan dengan nilai IC50 yang berbeda. Namun, penelitian secara in vivo Sargassum polycystum pada kanker kolon belum banyak dilakukan dan mekanisme sepenuhnya dalam penghambatan kanker belum diketahui. Penelitian ini bertujuan untuk mengetahui efek alga coklat (Sargassum polycystum) secara in vivo pada hewan model kolitis terkait kanker kolon yang diinduksi dengan Dekstran Sodium Sulfat (DSS). Penelitian ini menggunakan mencit jantan galur Balb/c (n = 30 ekor) yang secara acak dibagi dalam 5 kelompok: kelompok normal, kelompok negatif, kelompok dosis 1 (18 mg/kgBB), kelompok dosis 2 (90 mg/kgBB), dan kelompok dosis 3 (450 mg/kgBB). Induksi kolitis terkait kanker kolon menggunakan senyawa kimia Dekstran Sodium Sulfat (DSS) dengan konsentrasi 2% dan 1% selama total 24 hari. Pengukuran berat badan, analisis kelangsungan hidup, dan penilaian Disease Activity Index (DAI) dilakukan selama penelitian berlangsung. Pengaruh Sargassum polycystum sebagai antikanker diamati dengan memeriksa variabel inflamasi IL-1β dan pemeriksaan histologi jaringan kolon dengan periodic acid-schiff (PAS). Hasil penelitian menunjukkan bahwa hewan uji yang diberikan Sargassum polycystum pada dosis 18 mg/kgBB memiliki kelangsungan hidup lebih tinggi dan dapat menurunkan ekspresi variabel inflamasi IL-1β. ......Sargassum polycystum is known in vitro to have cytotoxic activity against HCT-116 cells in the colon, which were tested in several solvents with different IC50 values. However, in vivo studies of Sargassum polycystum on colon cancer have not been widely carried out, and the full mechanism of cancer inhibition is not yet known. This study aims to determine the effect of brown algae (Sargassum polycystum) in vivo on an animal model of colitis related to colon cancer induced by Dextran Sodium Sulfate (DSS). This study used male mice of the Balb/c strain (n = 30), which were randomly divided into 5 groups: normal group, negative group, dose 1 group (18 mg/kgBW), dose 2 group (90 mg/kgBW), and dose group 3 (450 mg/kgBW). Induction of colitis-associated colon cancer using the chemical compound Dextran Sodium Sulfate (DSS) with a concentration of 2% and 1% for a total of 24 days. Body weight measurements, survival analysis, and Disease Activity Index (DAI) assessments were carried out during the study. The effect of Sargassum polycystum as an anticancer agent was observed by examining the inflammatory variable IL-1β and histological examination of colonic tissue with periodic acid-schiff (PAS). The results showed that the test animals that were given Sargassum polycystum at a dose of 18 mg/kgBW had higher survival and could reduce the expression of the inflammatory variable IL-1β.