EDUARDUS BIMO AKSONO
Tropical Disease Diagnostic Center (TDDC) – Institute of Tropical Disease, Universitas Airlangga.

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Analyses of Precore and Core Promoter Mutations of Hepatitis B Virus in Patients with Chronic Hepatitis B in Surabaya, Indonesia JUNIASTUTI, .; AKSONO, EDUARDUS BIMO; UTSUMI, TAKAKO; YANO, YOSHIHIKO; SOETJIPTO, .; HAYASHI, YOSHITAKE; HOTTA, HAK; RANTAM, FEDIK ABDUL; KUSUMOBROTO, HERNOMO ONTOSENO; LUSIDA, MARIA INGE
Microbiology Indonesia Vol 4, No 3 (2010): December 2010
Publisher : Indonesian Society for microbiology

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Abstract

Mutations of precore (A1896) and core promoter (T1762/A1764) of hepatitis B virus can reduce HBeAg production. These mutations are frequently found in the late HBeAg seroconversion. However, it has been a controversy about the role played by precore and core promoter mutations in determining outcome of chronic hepatitis B. In the present study, the variability of precore and core promoter of hepatitis B virus were analyzed using PCR amplification and sequencing, according to the outcome (viral load and HBeAg/anti-HBe) in chronic hepatitis B patients in Surabaya. The study groups included 5 patients with uncomplicated chronic hepatitis B and 10 patients with chronic hepatitis B and liver cirrhosis in Dr. Soetomo Hospital, Surabaya. The control group included 6 blood donors obtained from Indonesia Red Cross, Surabaya. All groups were HBsAg positive. Precore mutation A1896 was predominant in all groups (60%-67% of each), together with precore variant T1858. As reported, precore variant T1858 is a prerequisite for precore A1896 and characteristic for viral genotype. Nevertheless, core promoter mutations T1762/A1764 were predominant only in LC patients (60%). All of these mutations were found mostly after HBeAg seroconversion (anti-HBe+). Of most samples with anti-HBe+, precore mutation was related with low viral load (<105 copies/mL), but core promoter mutations with high viral load (>105 copies/mL). Precore mutation A1896 was predominant in all groups, but core promoter mutations T1762/A1764 were only predominant in LC patients. The precore mutation alone is possible not critical to indicate a poor outcome, the core promoter mutations must be considered also.
QUICK DIAGNOSIS OF JAPANESE ENCEPHALITIS FOR NEW DIAGNOSED EMERGING DISEASE USING PCR TECHNIQUE IN SURABAYA, INDONESIA Matondang, Muhammad Qushai Y.; Nasronudin, Nasronudin; Aksono, Eduardus Bimo; Lusida, Maria Inge; Nastri, Aldise Mareta; Fajar, Nur Syamsiatul; Jannah, Lilis Mundri
Indonesian Journal of Tropical and Infectious Disease Vol 4, No 4 (2013)
Publisher : Institute of Topical Disease

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Abstract

Background: Japanese enchepalitis (JE) is a viral disease that considered as zoonotic disease, which transmitted through mosquito vectors that had JE virus. Mainly caused by the mosquito C. Tritaeniorhynchus (the most important vector is the mosquito Culex, which feeds on cattle in preference to human). JE virus disease can also cause disturbances in the central nervous system eg. brain, bone marrow, and meninges which has serious impact on public health. This disease has been reported from Japan, Korea, Taiwan, India, Myanmar, Thailand, Western Pacific and Southeast Asia to Indonesia. However, the incidence of this disease in Indonesia has not been well known in various animal species or humans. Aim: The purpose of this study is to develop rapid diagnostic examinations on patient diagnosed JE virus in Surabaya by using PCR (Polymerase Chain Reaction). Because, JE disease can lead to dead-end at the patient if not treated immediately. Method: The research methods, extraction method, PCR (1st RT-PCR and 2nd Nested PCR) are conducted using Japanese encephalitis PCR detection kit. Result: The results of the examination showed that 2 out of 17 people (11,765%) are positive with PCR bands 227 bp (basepair). This diagnostic technique to determine and to deal with early onset of the disease. Solutions for preventive actions can be started from the termination of the cycle vectors to vaccination measures. Conclusion: For his own medical factors given to reduce fever and swelling and reduce the pain.
QUICK DIAGNOSIS OF JAPANESE ENCEPHALITIS FOR NEW DIAGNOSED EMERGING DISEASE USING PCR TECHNIQUE IN SURABAYA, INDONESIA Matondang, Muhammad Qushai Y.; Nasronudin, Nasronudin; Aksono, Eduardus Bimo; Lusida, Maria Inge; Nastri, Aldise Mareta; Fajar, Nur Syamsiatul; Jannah, Lilis Mundri
Indonesian Journal of Tropical and Infectious Disease Vol 4, No 4 (2013)
Publisher : Institute of Topical Disease

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (402.4 KB) | DOI: 10.20473/ijtid.v4i4.232

Abstract

Background: Japanese enchepalitis (JE) is a viral disease that considered as zoonotic disease, which transmitted through mosquito vectors that had JE virus. Mainly caused by the mosquito C. Tritaeniorhynchus (the most important vector is the mosquito Culex, which feeds on cattle in preference to human). JE virus disease can also cause disturbances in the central nervous system eg. brain, bone marrow, and meninges which has serious impact on public health. This disease has been reported from Japan, Korea, Taiwan, India, Myanmar, Thailand, Western Pacific and Southeast Asia to Indonesia. However, the incidence of this disease in Indonesia has not been well known in various animal species or humans. Aim: The purpose of this study is to develop rapid diagnostic examinations on patient diagnosed JE virus in Surabaya by using PCR (Polymerase Chain Reaction). Because, JE disease can lead to dead-end at the patient if not treated immediately. Method: The research methods, extraction method, PCR (1st RT-PCR and 2nd Nested PCR) are conducted using Japanese encephalitis PCR detection kit. Result: The results of the examination showed that 2 out of 17 people (11,765%) are positive with PCR bands 227 bp (basepair). This diagnostic technique to determine and to deal with early onset of the disease. Solutions for preventive actions can be started from the termination of the cycle vectors to vaccination measures. Conclusion: For his own medical factors given to reduce fever and swelling and reduce the pain.
NO ASSOCIATION OF RECURRENT RESPIRATORY PAPILLOMATOSIS AGGRESSIVENESS AND HUMAN PAPILLOMAVIRUS TYPE 6 AND 11 Perdana, Rizka Fathoni; Herawati, Sri; Suroso, Bakti; Aksono, Eduardus Bimo
Indonesian Journal of Tropical and Infectious Disease VOL 6, NO 5 (2017)
Publisher : Institute of Topical Disease

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (171.917 KB) | DOI: 10.20473/ijtid.v6i5.3705

Abstract

Recurrent Respiratory Papillomatosis (RRP) is the most common benign neoplasm of the larynx among children as a result of HPV infection mainly type 6 and 11. RRP is still considered as serious problem since papilloma in the airway can cause hoarseness and obstruction which later described as aggressive and non aggressive types. Patients underwent multiple surgeries to keep airway patency and in order to communicate vocally. Previous studies reported that HPV-11 was associated with a more aggressive disease course. This study aim is to determine the association of RRP aggressiveness with HPV-6 and 11. Papilloma specimens were taken from patients who underwent surgical treatment of RRP patients and subjected HPV typing. All 17 patients with completed data and epidemiologic questionaires were defined for their staging to disease severity. Informations in the database were analyzed to identity statistically significant relationship with HPV type and knowing the HPV type is to predict the disease course. 17 patients RRP (12 males and 5 females) with age at onset 3,15 + 2,28 years and age at diagnosis 3,81 + 2,51 years. Surgery was performed 2,71 ± 1,16 times per year and 9 patients treated more than 3 surgeries per year. 10 patients had distal papilloma and 11 patients had tracheotomy. Agrressive disease was show found in 14 patients among 17 patients. HPV-11 was detected in 10 patients, HPV-6 was detected in 7 patients. According to the statisitcal analysis (Chi square test), there is no relationship between HPV type and disease aggressiveness. HPV-6 and 11 are not the only cause that affect the aggressiveness of Recurrent Respiratory Papillomatosis.