1.A Comparative Assessment of Comprehensive Trail Making Test and Wisconsin Card Sorting Test Among Alcohol Dependence Patients
Kandappa Nachimuthu Lavanya ; Rajkumar Ramanathan
Malaysian Journal of Medicine and Health Sciences 2023;19(No.6):111-117
Introduction: Alcohol, when used frequently, accelerates the ageing process, causes brain damage, and results in a
reduced volume of grey and white matter, leading to frontal lobe abnormalities. The neurotoxicity resulting from alcohol overuse affects the higher functions of the brain. This study aimed to evaluate the effect of alcohol dependence
on the executive functioning of the brain. Methods: This study was carried out as a case-control study among 60
patients with alcohol dependence and 60 controls. Assessment of executive function was carried out using the Comprehensive trail-making test (CTMT) and the Wisconsin card sorting test (WCST). Comparison between the alcohol
dependence group and normal healthy controls were calculated using the Mann-Whitney U test as data followed a
non-parametric distribution. Results: The mean age of the participants among the cases and controls was 38.3±5.5
years and 37.8±5.4 years, respectively. The results showed a significant difference in both WCST and CTMT between
cases and controls (p<0.05). Conclusion: This study concludes that there was an impaired performance in executive
functions in alcohol- dependence patients in early abstinence compared to normal controls showing frontal lobe
impairment in alcohol-dependence patients.
2.Autologous cervical tumor lysate pulsed dendritic cell stimulation followed by cisplatin treatment abrogates FOXP3+ cells in vitro
Hemavathi DHANDAPANI ; Abirami SEETHARAMAN ; Hascitha JAYAKUMAR ; Selvaluxmy GANESHRAJAH ; Shirley Sunder SINGH ; Rajkumar THANGARAJAN ; Priya RAMANATHAN
Journal of Gynecologic Oncology 2021;32(4):e59-
Objective:
Dendritic cells (DCs) are administered as immunotherapeutic adjuvants after the completion of standard treatment in most settings. However, our Phase I trial indicated that one patient out of four, who received autologous tumor lysate-pulsed dendritic cell (TLDC) also received cisplatin chemotherapy and experienced complete regression of her lung lesion, continuing to be disease free till date. Hence, the objective of our current study is to evaluate the sustenance or augmentation of immune responses when autologous human papillomavirus positive cervical tumor lysate pulsed DC- are combined with cisplatin, using co-culture assays in vitro.
Methods:
Before treatment, peripheral blood and punch biopsy samples were collected from 23 cervical cancer patients after obtaining an informed consent. DC functionality was confirmed through phenotypic and functional assays using autologous peripheral blood mononuclear cells as responders. For cisplatin experiments, the drug was added at 150, 200 (clinical dose equivalent), and 400 µM concentrations to DCs alone or DC-T cell co-cultures. Phenotypic assessment and functional characterization of DCs was done using flow cytometry. Cytokine enzyme-linked immunosorbent assay and interferon (IFN)-γ enzyme-linked immune absorbent spot assays were also performed.
Results:
The functionality of TLDCs was not compromised upon cisplatin treatment in vitro even at the highest (400 μM) concentration. Even though cisplatin treatment reduced the secretion of IFN-γ and interleukin (IL)-12p40 in co-cultures stimulated with TLDCs, this effect was not significant (p>0.05). A doubling of IFN-γ secretion following cisplatin treatment was observed in at least one of three independent experiments. Additional experiments showed a reduction in both FOXP3+ regulatory T cells and IL-10 levels.
Conclusion
Our results provide evidence that cisplatin treatment may be given after autologous TLDC administration to maintain or improve a productive anti-tumor response in vaccinated patients.


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