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  1. Kandasamy G, Shaleh SRM
    Appl Biochem Biotechnol, 2017 Jun;182(2):586-597.
    PMID: 27957653 DOI: 10.1007/s12010-016-2346-7
    Harvesting microalgae from medium is a major challenge due to their small size and low concentrations. In an attempt to find a cost-effective and eco-friendly harvesting technique, mung bean (Vigna radiata) protein extract (MBPE) was used for flocculation of Nannochloropsis sp. The effects of parameters such as pH, flocculant dose, algae concentration, and mixing time were used to study the flocculation efficiency (FE) of MBPE. Optimum parameters of MBPE dosage of 20 mL L(-1) and a mixing rate of 300 rpm for 6 min achieved a FE of >92% after 2 h of settling time. MBPE-aggregated microlga flocs were characterized by microscopy. Zeta potential values decreased with increasing flocculant dose, and the values obtained were -6.93 ± 0.60, -5.36 ± 0.64, and -4.44 ± 0.22 for doses of 10, 20, and 30 mL L(-1), respectively. In conclusion, MBPE flocculants used in this study are safe, nontoxic, and pollution free, so they could be used for an effective, convenient, and rapid harvesting of microalgae in an eco-friendly approach. These methods are sustainable and could be applied in industrial scale for aquaculture nutrition.
  2. Kandasamy G, Shaleh SRM
    Bioresour Technol, 2018 Jan;247:327-331.
    PMID: 28950142 DOI: 10.1016/j.biortech.2017.08.187
    A new approach to recover microalgae from aqueous medium using a bio-flotation method is reported. The method involves utilizing a Moringa protein extract - oil emulsion (MPOE) for flotation removal of Nannochloropsis sp. The effect of various factors has been assessed using this method, including operating parameters such as pH, MPOE dose, algae concentration and mixing time. A maximum flotation efficiency of 86.5% was achieved without changing the pH condition of algal medium. Moreover, zeta potential analysis showed a marked difference in the zeta potential values when increase the MPOE dose concentration. An optimum condition of MPOE dosage of 50ml/L, pH 8, mixing time 4min, and a flotation efficiency of greater than 86% was accomplished. The morphology of algal flocs produced by protein-oil emulsion flocculant were characterized by microscopy. This flotation method is not only simple, but also an efficient method for harvesting microalgae from culture medium.
  3. Kandasamy G, Almaghaslah D, Sivanandy P, Arumugam S
    Int J Health Plann Manage, 2019 Apr;34(2):e1200-e1207.
    PMID: 30793369 DOI: 10.1002/hpm.2758
    OBJECTIVES: A prospective observational study was carried out with the aim of evaluating the effectiveness of nasal continuous positive airway pressure (nCPAP) therapy on the health-related quality of life (QoL) of patients with obstructive sleep apnea (OSA).

    METHODS: The patients included in this study were those recently diagnosed with OSA (AHI > 5) and given nCPAP therapy, as well as being referred to a sleep laboratory for an assessment of their sleep disordered breathing. Prior to the start of nCPAP therapy and polysomnography evaluation, patients were asked to complete the validated Quebec sleep questionnaire (QSQ), and their baseline measurements were recorded.

    RESULTS: Among the study population, 14.41% (n = 31) had mild OSA with an apnea and hypopnea index of 5 to 14.9 events/h, while 26.97% (n = 58) had moderate OSA and 40% (n = 86) had severe OSA. The overall average apnea and hypopnea index of the study population was 30.24 ± 9.73 events/h; mild OSA patients had an average apnea and hypopnea index of 10.09 ± 2.65 events/h, moderate OSA patients had 21.48 ± 4.40 events/h, and severe OSA patients had 59.16 ± 22.14 events/h. A significant difference was observed between the scores before treatment and after 6 months of therapy in all domains of the QSQ QoL scores (P 

  4. Kandasamy G, Sivanandy P, Almaghaslah D, Khobrani M, Chinnadhurai M, Vasudevan R, et al.
    Int J Clin Pract, 2020 Nov;74(11):e13599.
    PMID: 32593188 DOI: 10.1111/ijcp.13599
    BACKGROUND: Resistance to antibiotics causes negative impact on health of the patients. Antibiotic resistance is the major global concern that has to be nullified for the better health outcome. The knowledge on antibiotics is very essential for the students who undertake pharmacy and health science courses. Hence a study was aimed to assess the level of knowledge, attitude, perception and practice on antibiotics usage among the pharmacy students of King Khalid University, KSA.

    MATERIALS AND METHODS: A prospective online questionnaire based survey was carried out among the pharmacy students about knowledge, attitude perception and practice of antibiotics using 5-point "Likert scale" and true/false responses. The responses range from strongly agree to strongly disagree, and always to never were recorded. The data were analysed by using simple descriptive statistics.

    RESULTS: Out of 300 students approached 212 responded and the response rate was found to be 71%. In this study, most (95%) of the students were aware of the emerging problem of antibiotic resistance due to inappropriate use of antibiotics. Majority (89%) of the students agreed the inappropriate use of antibiotics can increase the overall cost of treatment. However, over half of the (54%) students were not aware of the antibiotic resistance that may be a nation-wide problem of Kingdom of Saudi Arabia. The net positive response (NPR) and net other response (NOR) of all items in perception on antibiotics received more or less equal responses.

    CONCLUSION: The knowledge of antibiotics usage among the students are considerably good compared with previous studies. However, the attitude, perception and practice on antibiotics usage among the pharmacy students are very poor. It alarms the need of appropriate education to enlighten antibiotic awareness for the better disease prevention and health outcomes for the benefit of patient community.

  5. Kandasamy G, Sivanandy P, Almaghaslah D, Almanasef M, Vasudevan R, Chinnadhurai M, et al.
    Int J Clin Pract, 2021 Sep;75(9):e14489.
    PMID: 34115424 DOI: 10.1111/ijcp.14489
    BACKGROUND: The substantial and increasing use of medications escalating the risk of harm globally. The serious medication errors in hospital and community settings resulting from patient injury and death. Hence, a cross-sectional study was aimed to analyse the prescribing and dispensing errors in the outpatient departments of a south Indian hospital.

    MATERIALS AND METHODS: A prospective cross-sectional study was carried out to evaluate the prescribing, and dispensing errors in outpatients who seek patient counseling at the tertiary care multispecialty hospital. The data were collected from various sources such as patient's prescriptions and dispensing records from the pharmacy.

    RESULTS: A total of 500 prescriptions were screened and identified 65.60% of prescriptions with at least any one type of medication errors. Out of 328 prescriptions, 96.04% were handwritten and 3.96% were computerised prescriptions. Among the 328 prescriptions with medication errors, 32.62% noticed prescribing errors, 37.80% with dispensing errors, and 29.58% with both prescribing and dispensing errors. Out of these 328 prescriptions, 74.09% prescriptions were found to have polypharmacy.

    DISCUSSION: Medication errors are serious problems in healthcare and can be a source of significant morbidity and mortality in healthcare settings. The present study showed that dispensing errors were the most common among the types of medication errors, in these particularly wrong directions were the most common types of errors.

    CONCLUSION: This study concludes that the overall prevalence of medication errors was around 80%, but there were no life-threatening events observed. A clinical pharmacist can play a major role in this situation appears to be a strong intervention and early detection and prevention of medication errors and thus can improve the quality of care to the patients.

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