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Journal of the Medical Sciences (Berkala Ilmu Kedokteran)
Published by Universitas Gadjah Mada
ISSN : 01261312     EISSN : 23563931     DOI : http://dx.doi.org/10.19106/JMedSci005303202101
Core Subject : Science,
Immunology & microbiology Neuroscience
Journal of the Medical Sciences (JMedSci) or Berkala Ilmu Kedokteran (BIK) is an international, open-access, and double-blind peer-reviewed journal, published by Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada Yogyakarta Indonesia. JMedSci aiming to communicate high-quality articles in the areas of biomedical science from basic to clinical sciences.The journal welcomes papers from original articles, case reports, reviews, and book reviews. All papers published in JMedSci are freely available as downloadable pdf files. The journal began its publication on March 1973 and published quarterly (January, April, July, and October). JMedSci is abstracted and indexed in DOAJ, Crossref, Google Scholar, Sinta, Indonesia One Search. JMedSci is accredited by Directorate of General Higher Education, the Ministry of Research, Technology, and Higher Education, Indonesia
Arjuna Subject : Kedokteran - Kedokteran (Lain-Lain)
Articles 12 Documents
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Search results for , issue "Vol 45, No 04 (2013)" : 12 Documents clear
The relationship between sirtuin 1 (SIRT1) expression and tumor size, Proliferating Cell Nuclear Antigen (PCNA) expression and histological grading in rat breast carcinoma induced by dimethylbenz()anthracene (DMBA) Novrita Padauleng; Dewajani Purnomosari; Sri Herwiyanti; . Harjadi; . Irianiwati; Sitarina Widyarini
Journal of the Medical Sciences (Berkala Ilmu Kedokteran) Vol 45, No 04 (2013)
Publisher : Journal of the Medical Sciences (Berkala Ilmu Kedokteran)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2060.833 KB) | DOI: 10.19106/JMedScie004504201301

Abstract

Controversy regarding the role of SIRT1 in pathology of cancers exists and is still under debate.SIRT1 could act as either a tumor supressor or tumor promotor. This study was conducted toevaluate the relationship between SIRT1 expression and tumor size, Proliferating Cell NuclearAntigen (PCNA) expression and histological grading in rat breast carcinoma induced bydimethylbenz(á)anthracene (DMBA). Thirty female Sprague Dawley rats were randomly allocatedinto three groups with 10 rats in each group. Group 1 as negative control was just fed thestandard food. Group 2 as vehicle control was fed the standard food and corn oil. Group 3 asinduction group was fed the standard food and induced with DMBA at dose of 20 mg/kg bodyweight (BW) in corn oil twice a week for five weeks. All rats were palpated weekly to determinethe appearance, size and location of tumors. Sixteen weeks after DMBA induction rats weresacrified and histological preparations of the breast carcinoma tissue were then processed forSIRT1 and PCNA expression examination as well as histological grading. The result showed thatSIRT1 expression was significantly higher in breast carcinoma tissue compared to normal gland(26.12 vs 0.05; p = 0.004). SIRT1-positive was observed mostly in poor histological gradecarcinomas (56.2%), and it was not observed in good histological grade carcinomas. However,there was no significantly difference between SIRT1 and histological grading (p = 0.097; r =0.285). A significant correlation between SIRT1 expression and the tumor size (p =0.009; r=0.877), as well as PCNA expression (p =0.000; r =0.790) was observed. In conclusion, thereis relationship between SIRT1 expression and tumor size as well as PCNA expression in rat breastcarcinoma induced by DMBA.
Structural evaluation and animal implantation of porous eggshell wastederived hydroxyapatite graft as bone substitution Yudha Mathan Sakti; Rahadyan Magetsari
Journal of the Medical Sciences (Berkala Ilmu Kedokteran) Vol 45, No 04 (2013)
Publisher : Journal of the Medical Sciences (Berkala Ilmu Kedokteran)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2484.881 KB) | DOI: 10.19106/JMedScie004504201304

Abstract

The development of hydroxyapatite graft with high economically value is needed for orthopedic practice in developing countries. Eggsell waste is well known as natural substance for calcium resource. It has been used as raw material in producing hydroxyapatite. This study was conducted to synthesize porous hydroxyapatite from eggshell waste and evaluate its activity as bone substitution. The porous hydroxyapatite graft was manufactured from eggshell and sugar as a raw material using hydrothermal process. The porous eggshell waste-derived hydroxyapatite (EW-HAP) graft was characterized using X ray difractometer (XRD) and analytical scanning electron microscope (SEM) and compared with commercial hydroxyapatite (HAP) JCPDS 09-432 graft (Bangros®) as standard. The porous EW-HAP graft obtained was then implanted on critically sized femoral defects surgically created in the right thigh of male Wistar rats (Rattus norvegicus) with Bangros® as control. Radiological examination using XRD and histological examination using hematoxyline-and-eosin staining of the bone femour were performed at 28 days after implantation. The results showed that the XRD pattern for EW-HAP was likely similar with the HAP standard. However, the SEM examination showed that the pasticle size of EW-HAP graft (2.5-3 μm) was higher than those HAP standard graft (1.5-2 μm). Radiographs according to the International of Limb Salvage (ISOLS) radiological evaluation system between EW-HAP graft (6.1 ± 1.45) and HAP control graft (6.9 ± 2.10) was not significantly different (p>0.05). Moreover, histological examination according to Lane and Shandu scoring system between the both graft (4.0 ± 0.94 versus 4.4 ± 0.92) was also not significantly different (p>0.05). It can be concluded that the structure EW-HAP graft is similar with HAP graft standard. The both grafts have also equal outcome as bone substitution.

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