Ari Fahrial Syam1, Langgeng Agung Waskito2,3, Yudith Annisa Ayu Rezkitha3,4, Rentha Monica Simamora5, Fauzi Yusuf6, Kanserina Esthera Danchi7, Ahmad Fuad Bakry8, Erwin Mulya9, Gontar Alamsyah Siregar10, Titong Sugihartono11, Hasan Maulahela1, Dalla Doohan2, Muhammad Miftahussurur12,13, Yoshio Yamaoka14,15. 1. Division of Gastroenterology, Department of Internal Medicine, Faculty of Medicine-Cipto Mangunkusumo Teaching Hospital, University of Indonesia, Jakarta, Indonesia. 2. Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia. 3. Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia. 4. Department of Internal Medicine, Faculty of Medicine, University of Muhammadiyah Surabaya, Surabaya, Indonesia. 5. Department of Internal Medicine, Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia. 6. Division of Gastroentero-Hepatology, Department of Internal Medicine, Faculty of Medicine, Dr. Zainoel Abidin General Hospital, Universitas Syiah Kuala, Banda Aceh, Indonesia. 7. Department of Internal Medicine, Dr. M Thomsen Nias Gunungsitoli General Hospital, Nias, Indonesia. 8. Division of Gastroentero-Hepatology, Department of Internal Medicine, Faculty of Medicine, Sriwijaya University, Palembang, Indonesia. 9. Department of Internal Medicine, Cimacan General Hospital, Cianjur, Indonesia. 10. Division of Gastroentero-Hepatology, Department of Internal Medicine, Faculty of Medicine, University of Sumatera Utara, Medan, Indonesia. 11. Division of Gastroentero-Hepatology, Department of Internal Medicine, Faculty of Medicine-Dr Soetomo Teaching Hospital, Universitas Airlangga, Jalan Mayjend Prof. Dr. Moestopo No. 6-8, Surabaya, 60286, Indonesia. 12. Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia. muhammad-m@fk.unair.ac.id. 13. Division of Gastroentero-Hepatology, Department of Internal Medicine, Faculty of Medicine-Dr Soetomo Teaching Hospital, Universitas Airlangga, Jalan Mayjend Prof. Dr. Moestopo No. 6-8, Surabaya, 60286, Indonesia. muhammad-m@fk.unair.ac.id. 14. Department of Environmental and Preventive Medicine, Oita University Faculty of Medicine, 1-1 Idaigaoka, Hasama Machi, Yufu City, Oita, 879-5593, Japan. yyamaoka@oita-ac.jp. 15. Department of Medicine, Gastroenterology and Hepatology Section, Baylor College of Medicine, Houston, TX, USA. yyamaoka@oita-ac.jp.
Abstract
BACKGROUND: Even though the incidence of H. pylori infection among Malays in the Malay Peninsula is low, we observed a high H. pylori prevalence in Sumatra, which is the main residence of Indonesian Malays. H. pylori prevalence among Indonesian Malay descendants was investigated. RESULTS: Using a combination of five tests, 232 recruited participants were tested for H- pylori and participants were considered positive if at least one test positive. The results showed that the overall H. pylori prevalence was 17.2%. Participants were then categorized into Malay (Aceh, Malay, and Minang), Java (Javanese and Sundanese), Nias, and Bataknese groups. The prevalence of H. pylori was very low among the Malay group (2.8%) and no H. pylori was observed among the Aceh. Similarly, no H. pylori was observed among the Java group. However, the prevalence of H. pylori was high among the Bataknese (52.2%) and moderate among the Nias (6.1%). Multilocus sequence typing showed that H. pylori in Indonesian Malays classified as hpEastAsia with a subpopulation of hspMaori, suggesting that the isolated H. pylori were not a specific Malays H. pylori. CONCLUSIONS: Even though the ethnic groups live together as a community, we observed an extremely low H. pylori infection rate among Indonesian Malay descendants with no specific Indonesian Malay H. pylori. The results suggest that H. pylori was not originally among these groups and H. pylori was imported from other ethnic groups.
BACKGROUND: Even though the incidence of H. pylori infection among Malays in the Malay Peninsula is low, we observed a high H. pylori prevalence in Sumatra, which is the main residence of Indonesian Malays. H. pylori prevalence among Indonesian Malay descendants was investigated. RESULTS: Using a combination of five tests, 232 recruited participants were tested for H- pylori and participants were considered positive if at least one test positive. The results showed that the overall H. pylori prevalence was 17.2%. Participants were then categorized into Malay (Aceh, Malay, and Minang), Java (Javanese and Sundanese), Nias, and Bataknese groups. The prevalence of H. pylori was very low among the Malay group (2.8%) and no H. pylori was observed among the Aceh. Similarly, no H. pylori was observed among the Java group. However, the prevalence of H. pylori was high among the Bataknese (52.2%) and moderate among the Nias (6.1%). Multilocus sequence typing showed that H. pylori in Indonesian Malays classified as hpEastAsia with a subpopulation of hspMaori, suggesting that the isolated H. pylori were not a specific Malays H. pylori. CONCLUSIONS: Even though the ethnic groups live together as a community, we observed an extremely low H. pylori infection rate among Indonesian Malay descendants with no specific Indonesian Malay H. pylori. The results suggest that H. pylori was not originally among these groups and H. pylori was imported from other ethnic groups.
Entities:
Keywords:
Epidemiology; Helicobacter pylori; Malays; Population genetics; Prevalence; Sumatra
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