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Dive into the research topics where Christine Y. Chang is active.

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Featured researches published by Christine Y. Chang.


Comprehensive Psychiatry | 1989

Syndrome of intermetamorphosis: A new perspective

J. Arturo Silva; Gregory B. Leong; Andrew Shaner; Christine Y. Chang

Capgras syndrome is an often reported misidentification syndrome. In contrast, the syndrome of intermetamorphosis has been rarely reported. We describe three new cases of the syndrome of intermetamorphosis and propose a new nomenclature that may further systematic study of misidentification syndromes.


The American Journal of Gastroenterology | 2016

Serum Alanine Aminotransferase and Hepatitis B DNA Flares in Pregnant and Postpartum Women with Chronic Hepatitis B.

Christine Y. Chang; Natali Aziz; Mugilan Poongkunran; Asad Javaid; Huy N. Trinh; Daryl Lau; Mindie H. Nguyen

OBJECTIVES:Alterations in the immune system during pregnancy have been associated with reactivation of hepatitis B virus (HBV) in chronic hepatitis B (CHB) women. However, the effects of pregnancy on CHB remain not well understood. The goal of this study was to examine flares in HBV DNA and serum alanine aminotransferase (ALT) during pregnancy and postpartum in CHB women untreated prior to pregnancy.METHODS:This was a multicenter retrospective study of 113 pregnancies in 101 CHB women who presented during pregnancy at two community gastroenterology clinics and two tertiary medical centers in the United States during 1997–2015. Outcomes analyzed included onset, severity, and resolution of flares in HBV and ALT that occurred prior to starting antiviral therapy, if antiviral therapy was subsequently initiated. Women who initiated antiviral therapy during pregnancy were not included in the analysis of postpartum flares.RESULTS:HBV DNA flares were observed in 9% (8/90) of women during pregnancy and 4% (2/48) of women during postpartum. Flares in ALT (99–2522 U/l) were observed in 6% (7/112) of women during pregnancy and 10% (5/51) of women within the first 3 months of delivery. Age, HBeAg positivity, baseline HBV DNA, baseline ALT, gravida, and parity were not found to be significant predictors of flare.CONCLUSIONS:Flares in HBV DNA and ALT can occur during late pregnancy and early postpartum in CHB women, and can be severe. Women with CHB should therefore be closely monitored during pregnancy and early postpartum.


Academic Psychiatry | 1989

Teaching Transcultural Psychiatry

Joel Yager; Christine Y. Chang; Marvin Karno

The ethnic diversity of patients in most training centers requires that attention be given to cultural issues affecting the psychiatric presentation and treatment of patients from different backgrounds. This paper describes programs in transcultural psychiatry for medical students, residents, and fellows that have been implemented and refined at UCLA over the past six years. Suggestions are offered for the development of such programs elsewhere.


Medicine | 2017

Real-world experience with interferon-free, direct acting antiviral therapies in Asian Americans with chronic hepatitis C and advanced liver disease.

Christine Y. Chang; Pauline Nguyen; A. Le; Changqing Zhao; Aijaz Ahmed; Tami Daugherty; Gabriel Garcia; Glen Lutchman; Radhika Kumari; Mindie H. Nguyen

Abstract Real-life data on interferon (IFN)-free direct acting antiviral (DAA) therapies for chronic hepatitis C (CHC) is limited for Asian Americans. To evaluate sustained virologic response (SVR) and adverse events (AE) in Asian Americans treated with sofosbuvir (SOF)-based, IFN-free DAA therapies. This is a retrospective study of 110 consecutive Asian Americans with HCV genotypes 1 to 3 or 6 treated with IFN-free SOF-based regimens for 8 to 24 weeks between February 2014 and March 2016 at a university center in Northern California. Mean age was 63 ± 12 years, mean BMI was 25 ± 6 (kg/m2), and about half (52%) were male. Most patients were infected with HCV genotype 1 (HCV-1, 64%), followed by HCV-2 (14%), HCV-6 (13%), and HCV-3 (8%). Half had cirrhosis, and the majority of these (67%) had decompensation. Overall SVR12 was 93% (102/110), and highest among patients without cirrhosis, liver transplant, or HCC (100%, 37/37). SVR12 was lower among patients with HCC (82%, 14/17), decompensated cirrhosis (84%, 31/37), or liver transplant (89%, 17/19), regardless of treatment and genotype. Most common AEs were anemia (25%), fatigue (20%), and headache (12%). Anemia was highest in patients receiving SOF/RBV (67%). There was 1 treatment-unrelated serious adverse effect (SAE). There were 7 dose reductions due to anemia or fatigue from RBV and 2 treatment discontinuations due to fatigue or loss of insurance authorization. This real-life cohort of Asian American CHC patients treated with IFN-free SOF-based therapies showed high overall treatment response and good tolerability, despite very high rates of advanced disease and prior treatment failure.


Journal of Clinical Gastroenterology | 2017

Serum Aminotransferase Flares in Pregnant and Postpartum Women With Current or Prior Treatment for Chronic Hepatitis B

Christine Y. Chang; Natali Aziz; Mugilan Poongkunran; Asad Javaid; Huy N. Trinh; Daryl Lau; Mindie H. Nguyen

Background and Aims: Antiviral therapy is recommended for pregnant women with chronic hepatitis B (CHB) and hepatitis B virus (HBV) DNA>200,000 IU/mL, but there is less consensus on management of women who discontinue therapy in anticipation of pregnancy or who become pregnant while on therapy. The goal of this study was to describe flares in alanine aminotransferase (ALT) during pregnancy and postpartum in CHB women with current and/or prior treatment. Methods: This was a multicenter, retrospective study of 67 pregnancies in 56 CHB women treated before and/or during pregnancy. Main outcomes were frequency, severity, and resolution of ALT flare (≥5× upper limit of normal or ≥3× baseline, whichever was higher). Results: During pregnancy, ALT flares (95 to 1064 U/L) were observed in 16% (7/43) of women who stopped treatment before pregnancy and 31% (4/13) of women who discontinued treatment during first trimester, many of whom had high HBV DNA levels (4.9 to 8.0 log IU/mL). No flares (0/11) were observed in women who continued treatment. Postpartum ALT flares (104 to 1584 U/L) were observed in 0% (0/15) of women who were completely untreated during pregnancy, 29% (2/7) of women who discontinued treatment in first trimester, 33% (3/9) of women who stopped treatment at delivery, and 22% (4/18) of women who continued treatment postpartum. Conclusions: In previously treated women with CHB, ALT flares were common during pregnancy and postpartum, especially if antiviral therapy was discontinued shortly before pregnancy, during first trimester, or at delivery. Thus, these pregnant women should be monitored closely throughout pregnancy and the early postpartum period; larger studies are needed to further characterize the natural history of HBV infection during pregnancy and postpartum.


Gastroenterology | 2015

Tu1029 Simeprevir (SMV) and Sofosbuvir (SOF) Without Ribavirin (RBV) for 12 Weeks for Genotype 1 Chronic Hepatitis C (CHC-1) With and Without Hepatic Decompensation: A Real-Life Single-Center Experience

Glen Lutchman; Nghia Nguyen; Christine Y. Chang; Aijaz Ahmed; Tami Daugherty; Gabriel Garcia; Radhika Kumari; W. Ray Kim; Soumi Gupta; Dilesh Doshi; Mindie H. Nguyen

comparison, a trend was found favoring SVR12 for patients with mild fibrosis over advanced fibrosis (OR 2.66, CI 0.816-8.650; p-value=0.105). Data was insufficient to allow evaluation of serious adverse events or subanalysis for outcomes of SMV+SOF with and without RBV or treatment naive and experienced patients. Conclusions: Pooled rate of SVR12 was approximately 83% in SIM+SOF±RBV based on cohort studies from real-world settings which include a large proportion of patients with advanced fibrosis and/or prior treatment failure and slightly lower than reported rated from clinical trial, suggesting the importance of examining treatment effectiveness in diverse real-world patients in addition to treatment efficacy seen in highly selected clinical trial patients. Characteristics of studies included in meta-analysis


Gastroenterology | 2015

Tu1027 Treatment Response and Tolerability of Simeprevir (SMV)-Based or Sofosbuvir (SOF)-Based Therapy for the Treatment of Genotype 6 (HCV-6) Chronic Hepatitis C Infection

Vinh Vu; Christine Y. Chang; Huy N. Trinh; Glen Lutchman; Aijaz Ahmed; Tami Daugherty; Mindie H. Nguyen


Gastroenterology | 2015

Tu1037 Safety and Effectiveness of Sofosbuvir (SOF) Combined With Ribavirin (RBV) for the Treatment of Genotype 2 and 3 Chronic Hepatitis C Infection (HCV-2 and HCV-3)

Oliver N. Lin; Nghia Nguyen; Christine Y. Chang; Alina Kutsenko; Aijaz Ahmed; Tami Daugherty; Gabriel Garcia; Radhika Kumari; Anthony Swanner; W. Ray Kim; Mindie H. Nguyen; Glen Lutchman


Gastroenterology | 2017

Characterization and Statistical Modeling to Estimate Timing and Duration of Antiviral Therapy to Achieve Target HBV DNA ≤200,000 IU/ML at Delivery to Reduce Risk of Mother to Child Transmission (MTCT) in Pregnant Women with Chronic Hepatitis B (CHB)

Christine Y. Chang; Matthew S. Chang; Donghak Jeong; Natali Aziz; Daryl Lau; Huy N. Trinh; Mindie H. Nguyen


American Journal of Obstetrics and Gynecology | 2017

407: Hepatitis B DNA level for guidance of antiviral initiation timing in pregnant women for MTCT reduction

Natali Aziz; Christine Y. Chang; Mugilan Poongkunran; Asad Javaid; Huy N. Trinh; Daryl Lau; Mindie H. Nguyen

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Huy N. Trinh

California Pacific Medical Center

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Daryl Lau

Beth Israel Deaconess Medical Center

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