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All Journal Journal of the Medical Sciences (Berkala Ilmu Kedokteran) The Indonesian Biomedical Journal Sari Pediatri

Dewajani Purnomosari

Department Of Histology And Cell Biology, Faculty Of Medicine Public Health And Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia

Author-ID : 2969718

Biochemistry, Genetics & Molecular Biology Health Professions Immunology & microbiology Neuroscience Public Health

Published : 6 Documents Claim Missing Document

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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)

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.

Plasma DNA as a potential biomarker for breast cancer detection Dewajani Purnomosari; Ulfah Dian Indrayani; . Irianiwati; Dian Caturini Sulistyoningrum
Journal of the Medical Sciences (Berkala Ilmu Kedokteran) Vol 48, No 4 (2016)
Publisher : Journal of the Medical Sciences (Berkala Ilmu Kedokteran)

Breast cancer is a major malignancy among Indonesian women. It is often diagnosed inthe later stages of cancer, which leads to poor prognosis and survival of the patients.This study investigated plasma DNA concentration as a potential biomarker for breastcancer. The benefit of using this detection is the cost-effectiveness and the samples canbe collected from patients using non-invasive methods. Plasma samples were obtainedfrom healthy controls (n=18) and cancer patients (n=22). Each sample was split intotwo equal portions for DNA isolation using two different methods for the NaI methodand a commercially available kit (Qiagen/ QA) method. The DNA concentration wasdetermined by using a GeneQuant spectrophotometer (Pharmacia). The t-test was usedfor statistical analysis, which was performed using the SPSS 17.0 software. Compared tothe commercial method, extraction using NaI yielded higher DNA concentration, both fromsamples of healthy controls and cancer patients (p=0,008 and p=0.000, respectively).Furthermore, regardless of the isolation method used, the plasma DNA concentrationwas higher in healthy controls than in cancer cases (p=0,032 and p=0.005, for NaIand QA methods, respectively). In conclusion, isolation methods significantly affect DNAconcentrations. The plasma DNA concentration of healthy controls is significantly higherthan those of the cancer cases, suggesting that plasma DNA concentration might be apotential biomarker for breast cancer detection with less invasive sampling method thantissue biopsies.

Mammographic Density and Estrogen Receptor α Gene Polymorphism in Javanese Women Lina Choridah; Teguh Aryandono; Arif Faisal; Ahmad Hamim Sadewa; Dewajani Purnomosari
Journal of the Medical Sciences (Berkala Ilmu Kedokteran) Vol 49, No 2 (2017)
Publisher : Journal of the Medical Sciences (Berkala Ilmu Kedokteran)

Estrogen plays important roles in breast cancer as it binds its receptor in breast tissue. The most studied variants in estrogen receptor α encoded by ESR1 gene are the ESR1 PvuII and XbaI polymorphisms, which were associated with lower sensitivity to estrogen. We determined the proportion of ESR1 XbaI and PvuII polymorphisms in Javanese woman in Yogyakarta, Indonesia and analyzed the correlation between genetic variations with mammogram density. ESR1 XbaI and PvuII polymorphisms of 50 cases and 58 controls were identified using PCR-RFLP. Breast density was assessed based on digitizer mammograms. Quantitative analysis was performed using an interactive program based on cumulus of two thresholds. Mean of density and frequencies of SNPs were compared between cases and controls to identify the association between SNPs and cancer susceptibility. Mammographic density was significantly higher in cases (52%) than controls (0.41%) (p < 0.05). Women with one or two copies of the PvuII T allele and XbaI A allele had higher mammographic density compared with women with C and G alleles, respectively. The proportion between PP and TT genotype was not statistically significant (p > 0.05), while the proportion between AA and GG was significantly different (p < 0.05). Haplotype 2 (CG/PX) was associated with lower sensitivity to estrogen and reflects a decrease of mammographic density. These findings were consistent with other studies that showed that ESR1 polymorphisms may affect breast cancer risk through differences in breast density.

Review of immune responses correlated with COVID-19 outcomes: the fight, debacle and aftermath in the Indonesian context. Dian Eurike Septyaningtrias; Jajah Fachiroh; Dewi Kartikawati Paramita; Dewajani Purnomosari; Rina Susilowati
Journal of the Medical Sciences (Berkala Ilmu Kedokteran) Vol 52, No 3 (2020): Special Issue: COVID-19
Publisher : Journal of the Medical Sciences (Berkala Ilmu Kedokteran)

In the current pandemic, the highly contagious nature of the severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) leads to an enormous burden for the global health care system and creates challenging socioeconomic problems. Respiratory mucosa, the main entrance of SARS-CoV-2 infection, are equipped with an innate immune defense system as the initial response against infection. Activation of the adaptive immune system facilitates viral clearance as well as providing immunological memory for prevention from subsequent exposure. However, despite repeated efforts at implementing appropriate interventions, severe and fatal cases are continuing to occur and reports of recurrent cases need clarification. Host factors may contribute to the severity of the diseases while viral immune evasion is a common phenomenon leading to severe outcomes and recurrent infection. Discussions of immunological-based tests for screening, herd immunity, along with the possible advantages or potentially futile efforts of development of vaccine and alternative immunotherapy have become a part of daily household conversations. In this review, evidence of innate and adaptive immune responses or lack of them, and immunological problems relevant for SARS-CoV-2 will be summarized. Finally, perspectives for future studies especially in the Indonesian population will be sketched.

Co-Authors . Harjadi Ahmad Hamim Sadewa Annisa Annisa Arif Faisal Dewi Kartikawati Paramita Dian Caturini Sulistyoningrum Dian Eurike Septyaningtrias Eddy Supriyadi Elizabeth Henny Herningtyas Ika Fidianingsih Irianiwati Widodo Jajah Fachiroh, Jajah Lina Choridah Novrita Padauleng Rina Susilowati Sitarina Widyarini Sri Herwiyanti, Sri Teguh Aryandono Ulfah Dian Indrayani

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