Inflammatory is a body defense mechanism due to respond of tissue on undermine influences, either local or the one that go into the body. Inflammatory can cause various physical dysfunctions. Uncaria gambir Roxb, a high catechin content in ethyl acetate fraction, is widely used as wound healing in Indonesian culture, therefore its mechanism of anti-inflammatory action is still unknown. The objective of our study is to investigated the activity of anti-inflammatory ethyl acetate fraction of Uncaria gambir leaves inhibition of edema, COX-2 and iNOS expression using induction method with carrageenan in rats. This study is experimental research which use 25 white Wistar strain rats as animals assay that divided into 5 groups: negative group (water), positive group (sodium diclofenac 50 mg/kg bw), dose I (5 mg/kg bw fraction), II (10 mg/kg bw fraction) and III (20 mg/kg bw fraction) groups. Each of them were given orally 30 min before carrageenan 3% induced. The paw volume was measured every day for seven day after injection carrageenan using plethysmometer. Inhibition COX-2 and iNOS expression were determined by enzyme-linked immunosorbent assay. The results showed that ethyl acetate fraction of Uncaria gambir leaves in all doses had anti-inflammatory effect on white rats through the mechanism of inflammatory inhibition by reducing edema volume. All three fraction doses can also reduce COX-2 and iNOS expression. The fraction had the highest anti-inflammatory potency by the dose of 20 mg/kg body weight. The conclusion that ethyl acetate of three doses had anti-inflammatory activities through a mechanism of edema volume reduction, COX-2 and iNOS expression.
Annona muricata or soursop contains acetogenin which can induce apoptosis in vitro and has cytotoxic effect. The study has been done to examine soursop leaves extract’s potency in vivo especially to induce apoptosis in 7,12-Dimethylbenz[a]anthracene (DMBA)-induced Sprague Dawley rats. The induction process was done twice a week for five weeks. The soursop leaves extract were given in three dosages, that are 200, 400, and 800 mg/kgBW for seventeen days after two weeks DMBA induction. Data analysis showed that Annona muricata leaves ethanolic extract could enhance p53 pathway significantly with a dose independent manner in DMBA-induced rats.Keywords: Proapoptosis, Annona muricata leaves ethanolic extract, hepatoma
Cerebral malaria is a complication of Plasmodium falciparum infection and can cause death in humans. Plasmodium berghei ANKA (PbA) infection in C57BL/6 strain is widely used for cerebral malaria research. However, research to assess differences in brain histopathology, TNFα levels and the degree of parasitemia in Swiss websters infected with PbA are still limited. Therefore an infection with P. berghei ANKA strain was carried out on Swiss webster mice and C57BL/6 as a model of cerebral malaria. This research is a laboratory experiment with a post-test only control group design. Each experimental animal was divided into 3 groups namely PbA group (infected and given aquades), DHP (infected and given Dihidroartemisinin piperakuin), and healthy (mice not infected with PbA called aquades). Animal testing tried to examine parasitemia by microscopic counts on thin blood smear, calculation of serum TNFα levels by ELISA method and histopathology of the brain and slide microscopic examination with Haematoxylin Eosin staining conducted at the Experimental Animal Laboratory, Parasite Laboratory, Puslitbang BTDK, NIHRD; and Balitvet Pathology Laboratory by the research team. The results showed a peak percentage of parasitemia in the PbA group on day 4 for the Swiss webster strain (68.8%) and on the 5th day for the C57BL/6 strain (43.7%). The percentage of parasitemia was higher in the Swiss webster strain than in the C57BL/6 strain. TNFα levels in the Swiss webster strain (3.6 pg/ml) were higher than TNFα levels in the C57BL/6 strain (0.18 pg/ml). Histopathological changes in the brain consisting of lymphocyte cells, infiltration, macrophages, gliosis, necrosis, vacuolization and malaria parasitemia were found in both strains. The results showed that Swiss webster mice can be used as a model of cerebral malaria when seen from the clinical picture, the percentage of parasitemia, serum TNFα levels, macroscopic and microscopic brains that have similarities to the C57BL/6 strain. Keywords: Cerebral malaria, Plasmodium berghei ANKA, Swiss webster, C57BL/6. Abstrak Malaria serebral merupakan salah satu komplikasi infeksi Plasmodium falciparum dan dapat menyebabkan kematian pada manusia. Infeksi Plasmodium berghei ANKA (PbA) pada mencit galur C57BL/6 banyak digunakan untuk penelitian malaria serebral. Di Indonesia, mencit Swiss webster banyak digunakan sebagai hewan coba untuk malaria, namun penelitian untuk menilai perbedaaan histopatologi otak, kadar TNFα dan derajat parasitemia pada Swiss webster yang diinfeksi PbA masih terbatas. Oleh sebab itu dilakukan infeksi P. berghei galur ANKA pada mencit Swiss webster dan C57BL/6 sebagai model malaria serebral. Penelitian ini merupakan eksperimen laboratorium dengan desain post-test only control group. Masing-masing galur hewan coba dibagi menjadi 3 kelompok yaitu kelompok PbA (diinfeksi dan diberi akuades), DHP (diinfeksi dan diberi Dihidroartemisinin piperakuin), dan sehat (mencit yang tidak diinfeksi PbA yang diberi akuades). Pengujian pada hewan coba meliputi pemeriksaan parasitemia dengan penghitungan kepadatan parasit secara mikroskopis pada ulas darah tipis, penghitungan kadar TNFα serum dengan metode ELISA serta gambaran histopatologi sediaan otak dengan pewarnaan Haematoksilin Eosin dilakukan di Laboratorium Hewan Coba, Laboratorium Parasit Puslitbang BTDK, Badan Litbangkes; dan Laboratorium Patologi Balitvet oleh tim peneliti. Hasil penelitian menunjukkan puncak persentase parasitemia kelompok PbA pada hari ke- 4 untuk galur Swiss webster (68.8%) sementara untuk galur C57BL/6 (43.7%) pada hari ke-5. Hal ini berarti bahwa puncak parasitemia lebih cepat dan tinggi terjadi pada galur Swiss webster dibandingkan pada galur C57BL/6. Demikian juga untuk kadar TNFα didapatkan bahwa pada galur Swiss webster (3.6 pg/ml) lebih tinggi dibandingkan galur C57BL/6 (0.18 pg/ml). Perubahan histopatologik otak berupa infiltrasi sel limfosit, makrofag, gliosis, nekrosis, vakuolisasi dan parasitemia malaria ditemukan pada kedua galur. Hasil penelitian menunjukkan bahwa mencit galur Swiss webster dapat dijadikan sebagai model malaria serebral. Kata kunci: Malaria serebral, Plasmodium berghei ANKA, Swiss webster, C57BL/6.
Nasopharyngeal carcinoma (NPC) is a multifactorial disease that is geographically endemic in the world. Indonesia population is about 225 million people having varied diversity ethnic and has the high incidence rate of NPC approximately 6.2 per 100,000 people per year. EBV infection has been shown to be consistent with the onset of NPC. The pathogenesis of NPC is more directly reflected by carcinoma-specific viral transcriptional activity at the site of primary tumor. Therefore, EBV infection in NPC is also reflected by the expression of EBV latent and lytic gene, particularly in the expression of mRNA LMP1 EBV as a biomarker for EBV latent infection. The aims of this study were to determine the relative expression of mRNA LMP1 EBV in undifferentiated NPC (NPC WHO-III) patient as a biomarker of tumour progressivity in NPC. The samples were the tissue biopsies formalin-fixed embedded paraffin (FFPE) of 28 undifferentiated NPC patients at Pathology Anatomy Departement, R.S.U.D. Prof. dr. Margono Soekarjo, Purwokerto. The relative expression of mRNA LMP1 EBV was determined by RT-qPCR technique and calculated by formula 2-ΔCt. The relative expression of mRNA LMP1 EBV in undifferentiated NPCpatients on advanced staging was approximately start from 5,832.90 to 39,786.70. In undifferentiated NPC patients, the relative expression of mRNA LMP1 EBV in stadium IV (13.619,33 + 4902,3) increased of 1.5 times compared to stadium III (n = 2; 9.299,35 + 6178,9), however it was no significance differences statistically. Therefore, the relative expression of mRNA LMP1 EBV has a potensial biomarker of tumour progressivity in advanced staging undifferentiated NPC. AbstrakKarsinoma Nasofaring (KNF) merupakan penyakit yang bersifat multifaktor dan endemik di dunia. Populasi penduduk Indonesia yang berjumlah 225 juta yang terdiri atas beragam etnis populasi memiliki laju insidensi kasus KNF yang tinggi berkisar 6,2 per 100.000 penduduk pertahun. Infeksi EBV terbukti konsisten dengan perkembangan KNF. Patogenesis KNF lebih nyata terlihat dari aktivitas spesifik transkripsi virus pada tumor primernya. Infeksi EBV pada KNF dapat diamati dari ekspresi gen laten dan litiknya.. LMP1 merupakan onkogen utama dalam tumorigenesis KNF, sehingga ekspresi mRNA LMP1 EBV berperan sebagai petanda biologi infeksi laten EBV. Penelitian ini adalah untuk mengetahui ekspresi relatif mRNA LMP1 EBV berpotensi sebagai biomarka progresivitas tumor pada KNF tidak berdiferensiasi (KNF WHO III) Desain penelitian ini adalah studi cross sectional (seran lintang). Subyek penelitian adalah 28 biopsi jaringan tumor nasofaring yang terfiksasi dalam blok paraffin (formalin-fixed paraffin embedded/FFPE) populasi pasien KNF tidak berdiferensiasi pada Poli Patologi Anatomi R.S.U.D. Prof dr. Margono Soekarjo – Fakultas Kedokteran Unsoed, Purwokerto. Ekspresi relatif mRNA LMP1 EBV ditentukan dengan teknik RT-qPCR dan dihitung dengan rumus 2-ΔCt. Nilai ekspresi relatif mRNA LMP1 EBV pada penderita KNF tidak berdiferensiasi stadium lanjut berkisar 5,832.90 - 39,786.70. Nilai ekspresi relatif mRNA LMP1 EBV pada stadium IV (13.619,33 + 4902,3) meningkat 1,5 kali dibandingkan dengan stadium III (9.299,35 + 6178,9), namun peningkatan ekspresi relatif mRNA LMP1 EBV tidak bermakna secara statistik Ekspresi relatif mRNA LMP1 EBV dari biopsi jaringan tumor FFPE berpotensi sebagai biomarka progresivitas tumor pada stadium lanjut KNF tidak berdiferensiasi.
BACKGROUND: Malaria remains a global health concern and an endemic disease in Indonesia. Sambiloto (Andrographis paniculata) and spirulina (Spirulina platensis) are two potential antimalarial agents which act as antioxidants and antiinflammatories that can suppress morbidities during chronic inflammation in malaria, such as proliferation in the colon. This study aims to investigate the effects of A. paniculata extract and S. platensis administration on Ki-67 expression in medial colon epithelial cells of Plasmodium berghei-infected mice measured by H-score.METHODS: Thirty P. berghei-infected male Swiss-Webster mice were divided into five groups: negative controls (carboxymethyl cellulose/CMC); positive controls (dihydroartemisinin-piperaquine/DHP); A. paniculata extract alone (AP); A. paniculata extract in combination with S. platensis extract (AP+ES); and with S. platensis powder (AP+PS). All mice were infected with P. berghei on day 0. The treatment for each group were given 3 days before infection (D-3) until the day of infection (D0) for 28 days after infection. Colon tissues were processed with immunohistochemistry to detect Ki-67.RESULTS: A difference in Ki-67 expression was observed among the groups (p<0.01). The mean H-score for the CMC control group is 135.503±6.723. The lowest level of Ki-67 expression was observed in the AP+PS group (H-score= 110.941±7.079). AP group did not show a significant difference from the CMC group (p=0.514) and neither did the AP+ES group (p=0.234).CONCLUSION: In conclusion, administration of A. paniculata extract and S. platensis powder lowers Ki-67 expression in medial colon epithelial cells of P. berghei-infected mice.KEYWORDS: malaria, spirulina, Ki-67, Andrographis paniculata, Spirulina platensis
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