Judul: Overview of Potential Amyloidopathy in Renal Mice (Mus musculus) After Injected by Amyloid Beta 40 and 42
Abstrak: Penyakit alzheimer merupakan gangguan neurodegeneratif yang ditandai dengan penurunan fungsi serta kerusakan pada jaringan otak secara permanen. Penyakit alzheimer akan bertambah kronis seiring berjalannya waktu dan hingga saat ini belum ditemukan obat yang dapat menyembuhkan penyakit ini. Penelitian ini bertujuan mengetahui perubahan yang terjadi pada organ ginjal mencit secara histopatologi setelah disuntikan dengan antigen Aβ 40 dan Aβ 42 sebagai marka dari penyakit neurogeneratif tipe Alzheimer. Sepuluh ekor mencit Balb/c (kontrol n=2, Aβ40 n=4, Aβ42 n=4) berumur 6 minggu digunakan dalam penelitian ini. Mencit dinekropsi kemudian diambil organ ginjalnya untuk dijadikan preparat histopatologi dengan pewarnaan Hematoksilin Eosin. Variabel yang diamati berupa adanya perubahan pada sel-sel ginjal dan data dianalisa secara deskriptif. Hasil pengamatan terhadap perubahan patologi terhadap sel-sel organ ginjal mencit memperlihatkan adanya lesi berupa pelebaran ruang bowman dan degenerasi hidropis pada tubulusnya. Penyuntikkan protein Aβ 40 dan 42 menyebabkan kerusakan pada sel-sel tubulus ginjal mencit.
Keyword: Alzheimer’s disease, Amyloid-Beta 40, Amyloid Beta 42, Renal Histopathology

Judul: Visualization of Amyloidopathy on Renal Mice After Immunized by Amyloid Beta-42
Abstrak: Penyakit Alzheimer merupakan jenis demensia berupa gangguan neurodegeneratif progresif pada lansia, yang ditandai adanya senile plaque dan neurofibrillary tangles di otak. Ginjal merupakan organ vital yang berpotensi mengalami kerusakan akibat retensi amyloid beta-42 (Aβ42). Studi ini dilakukan untuk mengidentifikasi amyloidopathy pada jaringan ginjal mencit yang terbagi menjadi 2 kelompok yaitu mencit yang diimunisasi Aβ42 (n=6) dan kontrol (n=8). Pengamatan histopatologis jaringan ginjal dilakukan dengan pewarnaan Hematoksilin Eosin. Temuan lesio dianalisis secara deskriptif dan semikuantitatif. Berdasarkan pengamatan yang dilakukan, ditemukan lesio patologis peradangan interstisial dengan sel peradangan limfosit, sel plasma, dan makrofag, serta kongesti dan hemoragi pada organ ginjal mencit perlakuan maupun kontrol. Organ ginjal mencit perlakuan yang diamati tidak menunjukkan adanya lesio sklerosis glomerulus, maupun fibrosis interstisial dan atrofi tubulus. Temuan ini diharapkan dapat melengkapi informasi mengenai penggunaan mencit sebagai hewan model penyakit Alzheimer serta membantu dalam pengembangan kit diagnostik. Kata kunci: amiloidosis, ginjal, histopatologi, mencit, penyakit alzheimer, Alzheimer’s disease is a type of dementia in the form of a progressive neurodegenerative disorder that happens in the old age, marked with the existence of senile plaque and neurofibrillary tangles in the brain. Kidneys are the vital organs which may have potential to get affected by the brain damage that is caused by amyloid beta-42 (Aβ42) retention. The aim of this study was to identify the amyloidopathy on mice renal tissues which is divided into two groups; the immunized mice by Aβ42 (n=6), and controls (n=8). Histopathological observations of renal tissue were carried out by using Hematoxylin Eosin staining. The lesion findings were then analyzed descriptively and semiquantitatively. Based on the observations, pathological lesions of interstitial inflammation that were filled with lymphocytes, plasma cells, and macrophages inflammatory cells, congestion, and hemorrhage were also identified in both treated and control mice renal tissues. The observed renal organs on the treated mice did not show glomerular sclerosis lesions, nor interstitial fibrosis and tubular atrophy. These findings are expected to complete the information regarding the use of mice as model organism of Alzheimer’s disease (AD) and assist in developing a diagnostic kit for AD. Keywords: alzheimer’s disease, amyloidosis, histopathology, kidneys, mice.
Keyword: amiloidosis, ginjal, histopatologi, mencit, penyakit alzheimer, alzheimer's disease, amyloidosis, histopathology, kidneys, mice

Judul: Utilization of terra/MODIS L1B data for analysis of horizontal wind profile in the troposphere
Abstrak: This study was concerned with horizontal wind derived from data collected with the Moderate-resolution Imaging Spectroradiometer (MODIS) on board the NASA’s Earth Observation System (EOS)-Terra satellite. The aim of this study is to develop a method for the estimation of horizontal wind movement in the troposphere based on Navier-Stokes equation. The method was applied to a calibrated and geolocated Terra/MODIS L1B 1 km data set. The data inputs to estimate surface temperature are retrieved from TIR (Thermal Infrared) bands 31 (10.780 μm to 11.280 μm) and 32 (11.770 μm to 12.270 μm). The obtained surface temperatures were later used to approximate geopotential height on a constant-pressure surface by using the modified Poisson equation. The main assumptions used are the hydrostatic equilibrium, ideal gas law, constant lapse rate and constant acceleration of gravity. Based on the distribution of geopotential height, the pressure gradient force is measured by the gradient of geopotential on an isobaric coordinate to present the horizontal wind profile. For certain topographic areas especially in the mountain ranges, there was a disadvantage of using pressure as a vertical coordinate which lead to inaccuracy. In spite of that, Terra/MODIS L1B data with 1 km spatial resolution can be used to estimate the horizontal wind movement in the troposphere.
Keyword: