Phillip Chan
MBChB, PhD, MRCP
Associate Research Scientist
Research & Publications
Biography
Research Summary
Dr Chan’s research focuses on the neurological impacts of HIV infection, including the persistence of immune activation in the central nervous system, the development and persistence of cognitive dysfunction, and the association with vascular inflammations and neurodegenerative diseases in virally suppressed people living with HIV.
Coauthors
Research Interests
Cerebrospinal Fluid; Biomarkers; AIDS Dementia Complex; Neurodegenerative Diseases; Neurocognitive Disorders; Neuroimaging
Public Health Interests
Aging; HIV/AIDS; Infectious Diseases; Mental Health
Selected Publications
- Consensus Competencies for Post-Graduate Fellowship Training in Global Neurology.Schiess N, Kulo V, Anand P, Bearden DR, Berkowitz AL, Birbeck GL, Cervantes-Arslanian A, Chan P, Chishimba LC, Chow FC, Elicer I, Fleury A, Kinikar A, Kvalsund M, Mateen FJ, Mbonde AA, Meyer AL, O'Carroll CB, Ogunniyi A, Patel AA, Rubenstein M, Siddiqi OK, Spudich S, Tackett SA, Thakur KT, Vora N, Zunt J, Saylor DR. Consensus Competencies for Post-Graduate Fellowship Training in Global Neurology. Neurology 2023 PMID: 36997322, DOI: 10.1212/WNL.0000000000207184.
- Cognitive Health in Persons With Human Immunodeficiency Virus: The Impact of Early Treatment, Comorbidities, and Aging.Aung HL, Alagaratnam J, Chan P, Chow FC, Joska J, Falutz J, Letendre SL, Lin W, Muñoz-Moreno JA, Cinque P, Taylor J, Brew B, Winston A. Cognitive Health in Persons With Human Immunodeficiency Virus: The Impact of Early Treatment, Comorbidities, and Aging. J Infect Dis 2023, 227: S38-S47. PMID: 36930639, DOI: 10.1093/infdis/jiac388.
- Brain volumetrics differ by fiebig stage in acute HIV infection.Bolzenius J, Sacdalan C, Ndhlovu LC, Sailasuta N, Trautmann L, Tipsuk S, Crowell TA, Suttichom D, Colby DJ, Phanuphak N, Chan P, Premeaux T, Kroon E, Vasan S, Hsu DC, Valcour V, Ananworanich J, Robb ML, Ake JA, Pohl KM, Sriplienchan S, Spudich S, Paul R, RV254/SEARCH010, RV304/SEARCH013 Study Teams. Brain volumetrics differ by fiebig stage in acute HIV infection. AIDS 2023 PMID: 36723491, DOI: 10.1097/QAD.0000000000003496.
- Effects of syphilis infection among HIV-1-positive individuals on suppressive antiretroviral therapy.Chan P, Tang THC, Kwong RTS, Chan L, Chan HSY, Lam KW, Ting WM, Yung SK, Lam ECT, Chu MY, Lam W, Wu TC, Li P, Lee MP. Effects of syphilis infection among HIV-1-positive individuals on suppressive antiretroviral therapy. AIDS Res Ther 2022, 19: 69. PMID: 36587188, DOI: 10.1186/s12981-022-00493-w.
- Neurocognition and the Aging Brain in People With HIV: Implications for Screening.Chan P, Valcour V. Neurocognition and the Aging Brain in People With HIV: Implications for Screening. Topics In Antiviral Medicine 2022, 29: 423-429. PMID: 35191658, PMCID: PMC8862751.
- Individual Differences in CD4/CD8 T-Cell Ratio Trajectories and Associated Risk Profiles Modeled From Acute HIV InfectionPaul R, Cho K, Bolzenius J, Sacdalan C, Ndhlovu LC, Trautmann L, Krebs S, Tipsuk S, Crowell TA, Suttichom D, Colby DJ, Premeaux TA, Phanuphak N, Chan P, Kroon E, Vasan S, Hsu D, Carrico A, Valcour V, Ananworanich J, Robb ML, Ake JA, Sriplienchan S, Spudich S, Team F. Individual Differences in CD4/CD8 T-Cell Ratio Trajectories and Associated Risk Profiles Modeled From Acute HIV Infection Psychosomatic Medicine 2022, 84: 976-983. PMID: 36162059, PMCID: PMC9553252, DOI: 10.1097/psy.0000000000001129.
- Immunological, Cognitive and Psychiatric Outcomes after Initiating EFV- and DTG-based Antiretroviral Therapy during Acute HIV InfectionChan P, Yoon B, Colby D, Kroon E, Sacdalan C, Sriplienchan S, Pinyakorn S, Ananworanich J, Valcour V, Vasan S, Hsu D, Phanuphak N, Paul R, Spudich S, Team O. Immunological, Cognitive and Psychiatric Outcomes after Initiating EFV- and DTG-based Antiretroviral Therapy during Acute HIV Infection Clinical Infectious Diseases 2022, 76: ciac466-. PMID: 35687498, PMCID: PMC9907536, DOI: 10.1093/cid/ciac466.
- HIV Compartmentalization in the CNS and Its Impact in Treatment Outcomes and Cure StrategiesChan P, Spudich S. HIV Compartmentalization in the CNS and Its Impact in Treatment Outcomes and Cure Strategies Current HIV/AIDS Reports 2022, 19: 207-216. PMID: 35536438, DOI: 10.1007/s11904-022-00605-1.
- Large-scale plasma proteomic profiling identifies a high-performance biomarker panel for Alzheimer's disease screening and staging.Jiang Y, Zhou X, Ip FC, Chan P, Chen Y, Lai NCH, Cheung K, Lo RMN, Tong EPS, Wong BWY, Chan ALT, Mok VCT, Kwok TCY, Mok KY, Hardy J, Zetterberg H, Fu AKY, Ip NY. Large-scale plasma proteomic profiling identifies a high-performance biomarker panel for Alzheimer's disease screening and staging. Alzheimer's & Dementia : The Journal Of The Alzheimer's Association 2022, 18: 88-102. PMID: 34032364, DOI: 10.1002/alz.12369.
- Demographics and Medication Use of Patients with Late-Onset Alzheimer's Disease in Hong Kong.Wong HY, Zhong H, Zhong M, Zhou X, Chan PYC, Kwok TCY, Mok K, Hardy J, Ip FCF, Fu AKY, Ip NY. Demographics and Medication Use of Patients with Late-Onset Alzheimer's Disease in Hong Kong. Journal Of Alzheimer's Disease : JAD 2022, 87: 1205-1213. PMID: 35466936, DOI: 10.3233/JAD-215312.
- Cerebrospinal fluid CD4+ T cell infection in humans and macaques during acute HIV-1 and SHIV infectionSharma V, Creegan M, Tokarev A, Hsu D, Slike BM, Sacdalan C, Chan P, Spudich S, Ananworanich J, Eller MA, Krebs SJ, Vasan S, Bolton DL. Cerebrospinal fluid CD4+ T cell infection in humans and macaques during acute HIV-1 and SHIV infection PLOS Pathogens 2021, 17: e1010105. PMID: 34874976, PMCID: PMC8683024, DOI: 10.1371/journal.ppat.1010105.
- Investigating vascular diseases in people living with HIV by nuclear imagingChan P, Spudich S. Investigating vascular diseases in people living with HIV by nuclear imaging Journal Of Nuclear Cardiology 2021, 29: 1576-1582. PMID: 33884573, DOI: 10.1007/s12350-021-02613-x.
- Clinical and laboratory impact of concomitant syphilis infection during acute HIVChan P, Colby D, Kroon E, Sacdalan C, Pinyakorn S, Paul R, Robb M, Valcour V, Ananworanich J, Marra C, Spudich S. Clinical and laboratory impact of concomitant syphilis infection during acute HIV HIV Medicine 2021, 22: 502-511. PMID: 33728759, DOI: 10.1111/hiv.13079.
- Cognitive trajectories after treatment in acute HIV infectionChan P, Kerr SJ, Kroon E, Colby D, Sacdalan C, Hellmuth J, Reiss P, Vasan S, Ananworanich J, Valcour V, Spudich S, Paul R. Cognitive trajectories after treatment in acute HIV infection AIDS 2021, 35: 883-888. PMID: 33534200, DOI: 10.1097/qad.0000000000002831.
- Minimal detection of cerebrospinal fluid escape after initiation of antiretroviral therapy in acute HIV-1 infection.Handoko R, Chan P, Jagodzinski L, Pinyakorn S, Ubolyam S, Phanuphak N, Sacdalan C, Kroon E, Dumrongpisutikul N, Paul R, Valcour V, Ananworanich J, Vasan S, Spudich S. Minimal detection of cerebrospinal fluid escape after initiation of antiretroviral therapy in acute HIV-1 infection. AIDS 2020, 35: 777-782. PMID: 33306551, PMCID: PMC7969409, DOI: 10.1097/qad.0000000000002786.
- Regional brain volumetric changes despite 2 years of treatment initiated during acute HIV infection.Kallianpur KJ, Jahanshad N, Sailasuta N, Benjapornpong K, Chan P, Pothisri M, Dumrongpisutikul N, Laws E, Ndhlovu LC, Clifford KM, Paul R, Jagodzinski L, Krebs S, Ananworanich J, Spudich S, Valcour V. Regional brain volumetric changes despite 2 years of treatment initiated during acute HIV infection. AIDS 2020, 34: 415-426. PMID: 31725432, PMCID: PMC6994348, DOI: 10.1097/qad.0000000000002436.
- Resting-state neural signatures of depressive symptoms in acute HIVPhilippi CL, Reyna L, Nedderman L, Chan P, Samboju V, Chang K, Phanuphak N, Ratnaratorn N, Hellmuth J, Benjapornpong K, Dumrongpisutikul N, Pothisri M, Robb ML, Ananworanich J, Spudich S, Valcour V, Paul R. Resting-state neural signatures of depressive symptoms in acute HIV Journal Of NeuroVirology 2020, 26: 226-240. PMID: 31989446, PMCID: PMC7261250, DOI: 10.1007/s13365-020-00826-3.
- Neuropsychiatric outcomes before and after switching to dolutegravir-based therapy in an acute HIV cohortChan P, Goh O, Kroon E, Colby D, Sacdalan C, Pinyakorn S, Prueksakaew P, Reiss P, Ananworanich J, Valcour V, Spudich S, Paul R. Neuropsychiatric outcomes before and after switching to dolutegravir-based therapy in an acute HIV cohort AIDS Research And Therapy 2020, 17: 1. PMID: 31907064, PMCID: PMC6945418, DOI: 10.1186/s12981-019-0257-8.
- Perspective on potential impact of HIV central nervous system latency on eradication.Chan P, Ananworanich J. Perspective on potential impact of HIV central nervous system latency on eradication. AIDS (London, England) 2019, 33 Suppl 2: S123-S133. PMID: 31090545, DOI: 10.1097/QAD.0000000000002264.
- Deep Sequencing Reveals Central Nervous System Compartmentalization in Multiple Transmitted/Founder Virus Acute HIV-1 InfectionTovanabutra S, Sirijatuphat R, Pham PT, Bonar L, Harbolick EA, Bose M, Song H, Chang D, Oropeza C, O’Sullivan A, Balinang J, Kroon E, Colby DJ, Sacdalan C, Hellmuth J, Chan P, Prueksakaew P, Pinyakorn S, Jagodzinski LL, Sutthichom D, Pattamaswin S, de Souza M, Gramzinski RA, Kim JH, Michael NL, Robb ML, Phanuphak N, Ananworanich J, Valcour V, Kijak GH, Sanders-Buell E, Spudich S, , . Deep Sequencing Reveals Central Nervous System Compartmentalization in Multiple Transmitted/Founder Virus Acute HIV-1 Infection Cells 2019, 8: 902. PMID: 31443253, PMCID: PMC6721674, DOI: 10.3390/cells8080902.
- Structural and functional brain imaging in acute HIVSamboju V, Philippi CL, Chan P, Cobigo Y, Fletcher JLK, Robb M, Hellmuth J, Benjapornpong K, Dumrongpisutikul N, Pothisri M, Paul R, Ananworanich J, Spudich S, Valcour V, 010/RV254 S, teams R. Structural and functional brain imaging in acute HIV NeuroImage Clinical 2018, 20: 327-335. PMID: 30101063, PMCID: PMC6082997, DOI: 10.1016/j.nicl.2018.07.024.
- Normalization of Soluble CD163 Levels After Institution of Antiretroviral Therapy During Acute HIV Infection Tracks with Fewer Neurological Abnormalities.D’Antoni M, Byron MM, Chan P, Sailasuta N, Sacdalan C, Sithinamsuwan P, Tipsuk S, Pinyakorn S, Kroon E, Slike BM, Krebs SJ, Khadka VS, Chalermchai T, Kallianpur KJ, Robb M, Spudich S, Valcour V, Ananworanich J, Ndhlovu LC, Teeratakulpisarn N, Fletcher J, Sacdalan C, Chomchey N, Sutthichom D, Rattanamanee S, Prueksakaew P, Ubolyam S, Eamyoung P, Puttamaswin S, Karnsomlap P, Luekasemsuk T, Intasan J, Benjapornpong K, Ratnaratorn N, O’Connell R, Trichavaroj R, Akapirat S, Phuang-Ngern Y, Sukhumvittaya S, Sajjaweerawan C, Jongrakthaitae S, Saetun P, Tragonlugsana N, Nuntapinit B, Tantibul N, Savadsuk H, Michael N, Trautmann L, Tovanabutra S, Ouellette M, Butterworth O, Crowell T, Turk E, Ann Eller L, Milazzo M, Bandar I, Shiramizu B, Shikuma C. Normalization of Soluble CD163 Levels After Institution of Antiretroviral Therapy During Acute HIV Infection Tracks with Fewer Neurological Abnormalities. The Journal Of Infectious Diseases 2018, 218: 1453-1463. PMID: 29868826, PMCID: PMC6151077, DOI: 10.1093/infdis/jiy337.
- Distribution of Human Immunodeficiency Virus (HIV) Ribonucleic Acid in Cerebrospinal Fluid and Blood Is Linked to CD4/CD8 Ratio During Acute HIVChan P, Patel P, Hellmuth J, Colby DJ, Kroon E, Sacdalan C, Pinyakorn S, Jagodzinski L, Krebs S, Ananworanich J, Valcour V, Spudich S, . Distribution of Human Immunodeficiency Virus (HIV) Ribonucleic Acid in Cerebrospinal Fluid and Blood Is Linked to CD4/CD8 Ratio During Acute HIV The Journal Of Infectious Diseases 2018, 218: 937-945. PMID: 29741638, PMCID: PMC6093332, DOI: 10.1093/infdis/jiy260.
- Cognitive Impairment and Persistent CNS Injury in Treated HIVChan P, Hellmuth J, Spudich S, Valcour V. Cognitive Impairment and Persistent CNS Injury in Treated HIV Current HIV/AIDS Reports 2016, 13: 209-217. PMID: 27188299, PMCID: PMC4977199, DOI: 10.1007/s11904-016-0319-7.
- Peripheral blood mononuclear cells HIV DNA levels impact intermittently on neurocognition.Cysique LA, Hey-Cunningham WJ, Dermody N, Chan P, Brew BJ, Koelsch KK. Peripheral blood mononuclear cells HIV DNA levels impact intermittently on neurocognition. PloS One 2015, 10: e0120488. PMID: 25853424, PMCID: PMC4390276, DOI: 10.1371/journal.pone.0120488.
- HIV associated neurocognitive disorders in the modern antiviral treatment era: prevalence, characteristics, biomarkers, and effects of treatment.Chan P, Brew BJ. HIV associated neurocognitive disorders in the modern antiviral treatment era: prevalence, characteristics, biomarkers, and effects of treatment. Current HIV/AIDS Reports 2014, 11: 317-24. PMID: 24966139, DOI: 10.1007/s11904-014-0221-0.
Clinical Trials
Conditions | Study Title |
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Diseases of the Nervous System; HIV/AIDS; Infectious Diseases; COVID-19 Inpatient; COVID-19 Outpatient | HIV Associated Reservoirs and Comorbidities (The HARC Plus Study) |