Rajendra Parajuli

Title(s)Postdoctoral Scholar, Herbert Wertheim School of Public Health & Human Longevity Science
SchoolVc-health Sciences-schools
Address9500 Gilman Drive #
La Jolla CA 92093
ORCID ORCID Icon0000-0002-4899-7212 Additional info
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    Collapse Biography 
    Collapse education and training
    University of Tokyo, Tokyo JapanPhD2010Environmental Epidemiology
    Collapse awards and honors
    Institute of Science & Technology (IOST), Tribhuvan University2020  - 2023UGC HERP Fasttrack Faculty Grant
    University of Tokyo & Tribhuvan University2020  - 2025JSPS Research Grant
    McGill University2014ISEE Travel Award
    Graduate School of Medicine, University of Tokyo, International Office 2010Foreign Researcher Award
    The University of Tokyo2007  - 2010University of Tokyo (TODAI) Fellowship for Doctoral Study
    University of Tokyo2005  - 2007ADB JSP Scholarship for MHSC

    Collapse Overview 
    Collapse overview
    About Me
    Research Scholar at the Herbert Wertheim School of Public Health, University of California, San Diego (UCSD), and also I am a faculty member in the Department of Zoology at Tribhuvan University, Nepal.

    As an environmental epidemiologist, my research focuses on understanding the neurodevelopmental impacts of environmental toxins, particularly heavy metals like arsenic (As) and lead (Pb), in vulnerable populations. Using longitudinal birth cohort study designs, I evaluate the effects of "In utero" and postnatal exposures on neurodevelopmental trajectories from infancy through adolescence.

    My work also explores the role of socioeconomic status (SES) and psychosocial factors, such as the home environment (e.g., HOME Scale) and Adverse Childhood Experiences (ACEs), to better understand the pathways linking environmental exposures to neurodevelopmental outcomes.

    Currently, I am expanding my research to investigate the neurodevelopmental effects of pesticide exposure and their metabolites using data from the Environmental Pollutant-Induced Neurotoxicity in Adolescents (ESPINA) study.

    I am deeply committed to advancing public health through interdisciplinary research, addressing critical challenges in environmental health, and contributing to the well-being of populations in resource-limited settings.

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    Collapse Bibliographic 
    Collapse selected publications
    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help. to make corrections and additions.
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    Altmetrics Details PMC Citations indicate the number of times the publication was cited by articles in PubMed Central, and the Altmetric score represents citations in news articles and social media. (Note that publications are often cited in additional ways that are not shown here.) Fields are based on how the National Library of Medicine (NLM) classifies the publication's journal and might not represent the specific topic of the publication. Translation tags are based on the publication type and the MeSH terms NLM assigns to the publication. Some publications (especially newer ones and publications not in PubMed) might not yet be assigned Field or Translation tags.) Click a Field or Translation tag to filter the publications.
    1. Intestinal Parasitic Infections (IPIs) and Contributing Factors in Bovine Calves in Southern Nepal. Vet Med Sci. 2025 Mar; 11(2):e70254. Patel DK, Subedi JR, Dhakal P, Parajuli RP. PMID: 39980474; PMCID: PMC11843029.
      View in: PubMed   Mentions:    Fields:    Translation:Animals
    2. Intestinal Parasitic Infections and Associated Behavioral Risk Factors in a Squatter Community in Butwal, Nepal: A Pilot Study. Health Sci Rep. 2025 Feb; 8(2):e70473. Bhandari S, Parajuli RP, Dhakal P, Pandey K. PMID: 39963154; PMCID: PMC11830998.
      View in: PubMed   Mentions:
    3. Prevalence and associated factors of intestinal parasitic infections in the Badi indigenous communities of Western Nepal. J Health Popul Nutr. 2024 Dec 18; 43(1):211. Gautam J, Parajuli RP, Pandey K. PMID: 39695882; PMCID: PMC11657658.
      View in: PubMed   Mentions: 1     Fields:    Translation:HumansAnimals
    4. Risk factors for Ascaris lumbricoides infection and its association with nutritional status and IQ in 14-Year old adolescents in Chitwan, Nepal. Sci Rep. 2024 10 29; 14(1):26005. Parajuli RP, Bhandari S, Ward LM, Suarez-Lopez JR. PMID: 39472481; PMCID: PMC11522439.
      View in: PubMed   Mentions:    Fields:    Translation:HumansAnimals
    5. Prevalence of intestinal parasites in humans and domestic animals in Jirel community, Dolakha, Nepal. J Family Med Prim Care. 2024 Aug; 13(8):3408-3414. Dhakal P, Dhakal M, Dhakal D, Shakya P, Singh B, Gupta Kalwar R, Shahi R, Pandey S, Niraula D, Karki A, Mahato MK, Tamang S, Chhetri B, Thapa M, Parajuli R, Subedi JR, Pandey K, Maharjan M, Parajuli RP. PMID: 39228571; PMCID: PMC11368370.
      View in: PubMed   Mentions:
    6. Antibiotic Resistance Pattern of Bacteria Isolated from Clinical Specimens: A Hospital-Based Cross-sectional Study in Kathmandu, Nepal. Nepal Medical College Journal. 2024; 26(2):132-137. Rajendra Prasad Parajuli et al. . View Publication.
    7. Prevalence and contributing factors of intestinal parasitic infections among school children with malnutrition in Hetauda, Nepal: A cross-sectional study. Health Sci Rep. 2024 Jun; 7(6):e2146. Parajuli R, Dhakal P, Thapa S, Ghimire TR, Parajuli RP. PMID: 38812713; PMCID: PMC11130544.
      View in: PubMed   Mentions: 1  
    8. Enteric parasites and associated factors in cancer patients in Nepal. J Parasit Dis. 2024 Mar; 48(1):46-52. Singh B, Dhakal P, Parajuli RP. PMID: 38440754; PMCID: PMC10908722.
      View in: PubMed   Mentions: 1  
    9. Survey of intestinal parasites in swine farms raised in Western Nepal. Vet Med Sci. 2023 09; 9(5):2107-2117. Chaudhary B, Parajuli RP, Dhakal P. PMID: 37463607; PMCID: PMC10508489.
      View in: PubMed   Mentions: 4     Fields:    Translation:AnimalsCells
    10. Socioeconomic and education-based inequality in suspected developmental delays among Nepalese children: a subnational level assessment. Sci Rep. 2023 03 23; 13(1):4750. Acharya K, Rahman MS, Islam MR, Gilmour S, Dhungel B, Parajuli RP, Nishimura T, Senju A, Tsuchiya KJ. PMID: 36959346; PMCID: PMC10036624.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    11. Circulatory health risks from additive multi-pollutant models: short-term exposure to three common air pollutants in Canada. Environ Sci Pollut Res Int. 2023 Feb; 30(6):15740-15755. Shin HH, Owen J, Maquiling A, Parajuli RP, Smith-Doiron M. PMID: 36171323; PMCID: PMC9908686.
      View in: PubMed   Mentions: 2     Fields:    Translation:HumansPHPublic Health
    12. Prevalence and burden of gastrointestinal parasites in stray cattle of the Kathmandu Valley. J Parasit Dis. 2022 Sep; 46(3):845-853. Thapa B, Parajuli RP, Dhakal P. PMID: 36091270; PMCID: PMC9458840.
      View in: PubMed   Mentions: 4  
    13. Minimum risk of intestinal parasitic infection to the visitors of Ghandruk, Kaski, Nepal: a pilot survey. Ann Parasitol. 2022; 68(1):129-142. Parajuli RP, Subedi JR, Dhakal P, Mehta PK, Prajapati S, Bhattarai G, Acharya U, Chaudhary B, Paudel S, Somai ST, Shrestha NK, Kuwar K, Acharya D, Panta L, Kanauje N, Chhetala S, Pandey K, Maharjan M. PMID: 35491870.
      View in: PubMed   Mentions: 1     Fields:    Translation:HumansAnimals
    14. Multi-pollutant urban study on acute respiratory hospitalization and mortality attributable to ambient air pollution in Canada for 2001–2012. Atmospheric Pollution Research. 2021; 12(12):101234. Rajendra P. Parajuli Hwashin H. Shin Aubrey Maquiling Marc Smith-Doiron. . View Publication.
    15. Associations between urinary heavy metal concentrations and blood pressure in residents of Asian countries. Environ Health Prev Med. 2021 Oct 08; 26(1):101. Mizuno Y, Shimizu-Furusawa H, Konishi S, Inaoka T, Ahmad SA, Sekiyama M, Abdoellah OS, Gunawan B, Parajuli RP, Ikemoto Y, Lam TD, Watanabe C, Umezaki M. PMID: 34625018; PMCID: PMC8501740.
      View in: PubMed   Mentions: 7     Fields:    Translation:HumansPHPublic Health
    16. Variation in biomarker levels of metals, persistent organic pollutants, and omega-3 fatty acids in association with genetic polymorphisms among Inuit in Nunavik, Canada. Environ Res. 2021 09; 200:111393. Parajuli RP, Goodrich JM, Chan HM, Lemire M, Ayotte P, Hegele RA, Basu N. PMID: 34062203.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    17. Prevalence and risk factors of gastrointestinal parasites in the Chepangs in Nepal. Ann Parasitol. 2021; 67(3):387-405. Adhikari RB, Parajuli RP, Maharjan M, Ghimire TR. PMID: 34953115.
      View in: PubMed   Mentions: 10     Fields:    Translation:HumansAnimals
    18. Comparison of hospitalization and mortality associated with short-term exposure to ambient ozone and PM2.5 in Canada. Chemosphere. 2021 Feb; 265:128683. Shin HH, Gogna P, Maquiling A, Parajuli RP, Haque L, Burr B. PMID: 33158503.
      View in: PubMed   Mentions: 12     Fields:    Translation:HumansPHPublic Health
    19. Pollutant-sex specific differences in respiratory hospitalization and mortality risk attributable to short-term exposure to ambient air pollution. Sci Total Environ. 2021 Feb 10; 755(Pt 2):143135. Shin HH, Parajuli RP, Gogna P, Maquiling A, Dehghani P. PMID: 33168238.
      View in: PubMed   Mentions: 13     Fields:    Translation:HumansPHPublic Health
    20. Cohort profile: health effects monitoring programme in Ndilǫ, Dettah and Yellowknife (YKHEMP). BMJ Open. 2020 09 28; 10(9):e038507. Chan HM, Hu XF, Cheung JS, Parajuli RP, Rosol R, Yumvihoze E, Williams L, Mohapatra A. PMID: 32988947; PMCID: PMC7523220.
      View in: PubMed   Mentions: 2     Fields:    Translation:HumansPHPublic Health
    21. Health risk assessment of arsenic exposure among the residents in Ndilǫ, Dettah, and Yellowknife, Northwest Territories, Canada. Int J Hyg Environ Health. 2020 09; 230:113623. Cheung JS, Hu XF, Parajuli RP, Rosol R, Torng A, Mohapatra A, Lye E, Chan HM. PMID: 32932155.
      View in: PubMed   Mentions: 1     Fields:    Translation:HumansAnimalsPHPublic Health
    22. Temporal trends in associations between ozone and circulatory mortality in age and sex in Canada during 1984-2012. Sci Total Environ. 2020 Jul 01; 724:137944. Shin HH, Parajuli RP, Maquiling A, Smith-Doiron M. PMID: 32408420.
      View in: PubMed   Mentions: 5     Fields:    Translation:PHPublic Health
    23. Genetic polymorphisms are associated with exposure biomarkers for metals and persistent organic pollutants among Inuit from the Inuvialuit Settlement Region, Canada. Sci Total Environ. 2018 Sep 01; 634:569-578. Parajuli RP, Goodrich JM, Chan LHM, Ayotte P, Lemire M, Hegele RA, Basu N. PMID: 29635199.
      View in: PubMed   Mentions: 2     Fields:    Translation:HumansPHPublic Health
    24. Birth Cohort Consortium of Asia: Current and Future Perspectives. Epidemiology. 2017 10; 28 Suppl 1:S19-S34. Kishi R, Zhang JJ, Ha EH, Chen PC, Tian Y, Xia Y, Tsuchiya KJ, Nakai K, Kim S, Hong SJ, Hong YC, Lee JR, Jan Mohamed HJB, Parajuli RP, Adair LS, Chong YS, Guo YL, Wang SL, Nishijo M, Kido T, Tai PT, Nandasena S. PMID: 29028672.
      View in: PubMed   Mentions: 10     Fields:    Translation:HumansPHPublic Health
    25. Urinary and plasma fluoride levels in pregnant women from Mexico City. Environ Res. 2016 10; 150:489-495. Thomas DB, Basu N, Martinez-Mier EA, Sánchez BN, Zhang Z, Liu Y, Parajuli RP, Peterson K, Mercado-Garcia A, Bashash M, Hernández-Avila M, Hu H, Téllez-Rojo MM. PMID: 27423051.
      View in: PubMed   Mentions: 20     Fields:    Translation:HumansPHPublic Health
    26. Association of cadmium and arsenic exposure with salivary telomere length in adolescents in Terai, Nepal. Environ Res. 2016 08; 149:8-14. Fillman T, Shimizu-Furusawa H, Ng CFS, Parajuli RP, Watanabe C. PMID: 27155138.
      View in: PubMed   Mentions: 20     Fields:    Translation:HumansCellsPHPublic Health
    27. Genetic polymorphisms are associated with hair, blood, and urine mercury levels in the American Dental Association (ADA) study participants. Environ Res. 2016 08; 149:247-258. Parajuli RP, Goodrich JM, Chou HN, Gruninger SE, Dolinoy DC, Franzblau A, Basu N. PMID: 26673400; PMCID: PMC4897752.
      View in: PubMed   Mentions: 13     Fields:    Translation:HumansPHPublic Health
    28. Prevalence and risk factors of soil-transmitted helminth infection in Nepal. Trans R Soc Trop Med Hyg. 2015 Apr; 109(4):286. Parajuli RP, Fujiwara T, Umezaki M, Konishi S, Takane E, Maharjan M, Tachibana K, Jiang HW, Pahari K, Watanabe C. PMID: 25770251.
      View in: PubMed   Mentions:    Fields:    
    29. Association of cord blood levels of lead, arsenic, and zinc and home environment with children neurodevelopment at 36 months living in Chitwan Valley, Nepal. PLoS One. 2015; 10(3):e0120992. Parajuli RP, Umezaki M, Fujiwara T, Watanabe C. PMID: 25803364; PMCID: PMC4372553.
      View in: PubMed   Mentions: 14     Fields:    Translation:HumansPHPublic Health
    30. Home environment and cord blood levels of lead, arsenic, and zinc on neurodevelopment of 24 months children living in Chitwan Valley, Nepal. J Trace Elem Med Biol. 2015 Jan; 29:315-20. Parajuli RP, Fujiwara T, Umezaki M, Watanabe C. PMID: 25213681.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    31. Letter in response to Dr. José G. Dórea. Neurotoxicol Teratol. 2014 Sep-Oct; 45:94. Parajuli RP, Umezaki M, Furusawa H, Watanabe C, Fujiwara T. PMID: 24973755.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    32. Impact of caste on the neurodevelopment of young children from birth to 36 months of age: a birth cohort study in Chitwan Valley, Nepal. BMC Pediatr. 2014 Feb 27; 14:56. Parajuli RP, Fujiwara T, Umezaki M, Watanabe C. PMID: 24571600; PMCID: PMC3941607.
      View in: PubMed   Mentions: 4     Fields:    Translation:Humans
    33. Prevalence and risk factors of soil-transmitted helminth infection in Nepal. Trans R Soc Trop Med Hyg. 2014 Apr; 108(4):228-36. Parajuli RP, Fujiwara T, Umezaki M, Konishi S, Takane E, Maharjan M, Tachibana K, Jiang HW, Pahari K, Watanabe C. PMID: 24488979.
      View in: PubMed   Mentions: 10     Fields:    Translation:HumansPHPublic Health
    34. Significant sex difference in the association between C-reactive protein concentration and anthropometry among 13- to 19-year olds, but not 6- to 12-year olds in Nepal. Am J Phys Anthropol. 2014 May; 154(1):42-51. Konishi S, Parajuli RP, Takane E, Maharjan M, Tachibana K, Jiang HW, Pahari K, Inoue Y, Umezaki M, Watanabe C. PMID: 24431160.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    35. Home environment and prenatal exposure to lead, arsenic and zinc on the neurodevelopment of six-month-old infants living in Chitwan Valley, Nepal. Neurotoxicol Teratol. 2014 Jan-Feb; 41:89-95. Parajuli RP, Fujiwara T, Umezaki M, Furusawa H, Watanabe C. PMID: 24418190.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    36. Association of cord blood levels of lead, arsenic, and zinc with neurodevelopmental indicators in newborns: a birth cohort study in Chitwan Valley, Nepal. Environ Res. 2013 Feb; 121:45-51. Parajuli RP, Fujiwara T, Umezaki M, Watanabe C. PMID: 23164520.
      View in: PubMed   Mentions: 37     Fields:    Translation:HumansPHPublic Health
    37. Diet among people in the Terai region of Nepal, an area of micronutrient deficiency. J Biosoc Sci. 2012 Jul; 44(4):401-15. Parajuli RP, Umezaki M, Watanabe C. PMID: 22424573.
      View in: PubMed   Mentions: 14     Fields:    Translation:Humans
    38. Cord blood levels of toxic and essential trace elements and their determinants in the Terai region of Nepal: a birth cohort study. Biol Trace Elem Res. 2012 Jun; 147(1-3):75-83. Parajuli RP, Fujiwara T, Umezaki M, Furusawa H, Ser PH, Watanabe C. PMID: 22234823.
      View in: PubMed   Mentions: 8     Fields:    Translation:HumansPHPublic Health
    39. Health status of married women residing five communities in Nepal: unexpectedly high prevalence of anemia in a well-off community of Kathmandu. Nepal Med Coll J. 2011 Mar; 13(1):1-6. Konishi S, Parajuli RP, Takane E, Maharjan M, Sharma S, Tachibana K, Jiang H, Pahari K, Pandey BD, Watanabe C. PMID: 21991691.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    40. Behavioral and nutritional factors and geohelminth infection among two ethnic groups in the Terai region, Nepal. Am J Hum Biol. 2009 Jan-Feb; 21(1):98-104. Parajuli RP, Umezaki M, Watanabe C. PMID: 18802944.
      View in: PubMed   Mentions: 14     Fields:    Translation:HumansAnimalsPHPublic Health
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