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Gut Microbiota and Epilepsy: A Systematic Review on Their Relationship and Possible Therapeutics

Arulsamy A, Tan QY, Balasubramaniam V, O'Brien TJ, Shaikh MF

ACS Chem Neurosci, 2020 Nov 04;11(21):3488-3498.
PMID: 33064448 DOI: 10.1021/acschemneuro.0c00431

Dysbiosis of gut microbiota may lead to a range of diseases including neurological disorders. Thus, it is hypothesized that regulation of the intestinal microbiota may prevent or treat epilepsy. The purpose of this systematic review is to evaluate the evidence investigating the relationship between gut microbiota and epilepsy and possible interventions. A systematic review of the literature was done on four databases (PubMed, Scopus, EMBASE, and Web of Science). Study selection was restricted to original research articles while following the PRISMA guidelines. Six studies were selected. These studies cohesively support the interaction between gut microbiota and epileptic seizures. Gut microbiota analysis identified increases in Firmicutes, Proteobacteria, Verrucomicrobia, and Fusobacteria with decreases in Bacteroidetes and Actinobacteria in epileptic patients. Ketogenic diet, probiotics, and fecal microbiota transplantation (FMT) improved the dysbiosis of the gut microbiota and seizure activity. However, the studies either had a small sample size, lack of subject variability, or short study or follow-up period, which may question their reliability. Nevertheless, these limited studies conclusively suggest that gut microbiota diversity and dysbiosis may be involved in the pathology of epilepsy. Future studies providing more reliable and in depth insight into the gut microbial community will spark promising alternative therapies to current epilepsy treatment.
Impact of tobacco use on health and work productivity in Malaysia

Tan QY, Zomer E, Owen AJ, Chin KL, Liew D

Tob Control, 2020 01;29(1):111-117.
PMID: 30610080 DOI: 10.1136/tobaccocontrol-2018-054677

BACKGROUND: The loss of productivity arising from tobacco use in low/middle-income countries has not been well described. We sought to examine the impact of cigarette smoking on population health and work productivity in Malaysia using a recently published measure, the productivity-adjusted life year (PALY).
METHODS: A life table model was constructed using published Malaysian demographic and mortality data. Our analysis was limited to male smokers due to the low smoking prevalence in females (1.1%). Male smokers aged 15-64 years were followed up until 65 years or until death. The population attributable risk, health-related quality of life decrements and relative reduction in productivity due to smoking were sourced from published data. The analysis was repeated assuming the cohorts were never smokers, and the differences in outcomes represented the health and productivity burden conferred by smoking. The cost of productivity loss was estimated based on the gross domestic product per equivalent full-time worker in Malaysia.
RESULTS: Tobacco use is highly prevalent among working-age males in Malaysia, with 4.2 million (37.5%) daily smokers among men aged between 15 and 64 years. Overall, our model estimated that smoking resulted in the loss of over 2.1 million life years (2.9%), 5.5 million (8.2%) quality-adjusted life years (QALYs) and 3.0 million (4.8%) PALYs. Smoking was estimated to incur RM275.3 billion (US$69.4 billion) in loss of productivity.
CONCLUSION: Tobacco use imposes a significant public health and economic burden among working-age males in Malaysia. This study highlights the need of effective public health interventions to reduce tobacco use.
Transforming care: Optimizing ERAS pathway in breast cancer surgery with latissimus dorsi flap

Lai LL, Teh MS, Beh ZY, Lim WL, Lim SM, Soh WQ, et al.

World J Surg, 2024 Dec;48(12):2799-2810.
PMID: 39444164 DOI: 10.1002/wjs.12364

INTRODUCTION: This study aims to establish, execute, and assess the effectiveness of a perioperative enhanced recovery after surgery (ERAS) clinical care pathway in breast reconstruction patients with LD flap breast cancer treatment. The goal is to improve early recovery outcomes, reduce hospitalization time, and enhance patient satisfaction by implementing a standardized approach to postoperative care.
METHODS: This study was conducted at the University of Malaya Medical Center. The outcomes of 21 breast cancer patients who underwent autologous reconstructive breast surgery with the latissimus dorsi (LD) flap within six months before the implementation of the ERAS pathway (pre-ERAS) were compared with 26 patients who underwent the same surgery with the ultrasound-guided erector spinae plane (ESP) block for the (ERAS protocol implementation) cohort. The study was conducted from November 2019 to October 2020. The length of hospital stay, amount of analgesic usage, and incidence of postoperative nausea vomiting (PONV) were recorded.
RESULTS: The implementation of the ERAS clinical care pathway resulted in shorter hospital stays compared with the preceding care. On average, ERAS patients were mostly discharged on Day 2 post-surgery, whereas pre-ERAS patients were mostly discharged on Day 7. ERAS patients had a lower incidence of PONV from Days 1 to 5, starting with 88.5% not experiencing the condition on Days 1 and 2 and increasing to 100% on Day 5. All pre-ERAS patients experienced PONV in the first 5 days post-surgery. Fewer ERAS patients required antiemetics post-surgery (88.5%) compared with pre-ERAS patients (42.9%).
CONCLUSION: The implementation of the ERAS protocol as part of clinical care in autologous reconstructive breast surgery with the LD flap can improve recovery by shortening hospital stay, decreasing the use of analgesia, and alleviating PONV.
Evaluating the physicochemical properties and efficacy of recently expired and aged antivenom products from Thailand and Taiwan

Tan KY, Liew ST, Tan QY, Abdul-Rahman FN, Azmi NI, Sim SM, et al.

Toxicon, 2019 Mar 15;160:55-58.
PMID: 30797900 DOI: 10.1016/j.toxicon.2019.02.010

Gel filtration chromatography and gel electrophoresis revealed minimal protein degradation in lyophilized antivenoms which were 2-year expired (Hemato Polyvalent, Neuro Polyvalent; Thailand) and 18-year expired (Hemato Bivalent, Neuro Bivalent; Taiwan). All expired antivenoms retained immunological binding activity, and were able to neutralize the hemotoxic or neurotoxic as well as lethal effects of the homologous snake venoms. The findings show that antivenoms under proper storage conditions may remain relatively stable beyond the indicated shelf life.