Prevalence and Sociodemographic Profile of Lithium-induced Cutaneous Side Effects in Bipolar Affective Disorder Patients: A 1-year Prospective Observational Study in South India.

OBJECTIVES: Objective in our study is i) To assess the prevalence and sociodemographic profile of cutaneous side effects in bipolar affective disorder patients (BPAD) on lithium. ii) To assess the course of pre-existing skin reactions, when patient is initiated on lithium therapy. METHODS: Lithium induced cutaneous side effects were assessed at baseline and monthly for 6 months followed by every 2 months over a year. Dermatologist opinion obtained to diagnose and treat for each patient who developed cutaneous side effects. Data were analyzed in percentage. RESULTS: The prevalence of lithium induced cutaneous side effects in our study is 38.46%. On analyzing the individual subtype of cutaneous lesions, acneiform eruption and hairfall were most common. The cutaneous adverse reactions on lithium are more common in early adulthood than in the late adulthood and geriatric age group and among the subtypes of skin lesion acneiform eruptions are more common among males than in females. On analyzing the course of pre-existing lesions, severe alopecia developed with pre-existing systemic lupus erythematosis. CONCLUSION: These novel finding indicate that prevalence of lithium induced cutaneous side effects continues to be high. Hence, clinician should educate the patients before initiating lithium to improve attrition rate.

Allografts stimulate cross-reactive virus-specific memory CD8 T cells with private specificity.

Viral infections have been associated with the rejection of transplanted allografts in humans and mice, and the induction of tolerance to allogeneic tissues in mice is abrogated by an ongoing viral infection and inhibited in virus-immune mice. One proposed mechanism for this 'heterologous immunity' is the induction of alloreactive T cell responses that cross-react with virus-derived antigens. These cross-reactive CD8 T cells are generated during acute viral infection and survive into memory, but their ability to partake in the immune response to allografts in vivo is not known. We show here that cross-reactive, virus-specific memory CD8 T cells from mice infected with LCMV proliferated in response to allografts. CD8 T cells specific to several LCMV epitopes proliferated in response to alloantigens, with the magnitude and hierarchy of epitope-specific responses varying with the private specificities of the host memory T cell repertoire, as shown by adoptive transfer studies. Last, we show that purified LCMV-specific CD8 T cells rejected skin allografts in SCID mice. These findings therefore implicate a potential role for heterologous immunity in virus-induced allograft rejection.

The Antioxidants in Prevention of Cataracts Study: effects of antioxidant supplements on cataract progression in South India.

AIM: To determine if antioxidant supplements (beta carotene and vitamins C and E) can decrease the progression of cataract in rural South India. METHODS: The Antioxidants in Prevention of Cataracts (APC) Study was a 5 year, randomised, triple masked, placebo controlled, field based clinical trial to assess the ability of interventional antioxidant supplements to slow cataract progression. The primary outcome variable was change in nuclear opalescence over time. Secondary outcome variables were cortical and posterior subcapsular opacities and nuclear colour changes; best corrected visual acuity change; myopic shift; and failure of treatment. Annual examinations were performed for each subject by three examiners, in a masked fashion. Multivariate modelling using a general estimating equation was used for analysis of results, correcting for multiple measurements over time. RESULTS: Initial enrolment was 798 subjects. Treatment groups were comparable at baseline. There was high compliance with follow up and study medications. There was progression in cataracts. There was no significant difference between placebo and active treatment groups for either the primary or secondary outcome variables. CONCLUSION: Antioxidant supplementation with beta carotene, vitamins C and E did not affect cataract progression in a population with a high prevalence of cataract whose diet is generally deficient in antioxidants.