Displaying publications 21 - 22 of 22 in total

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  1. Cheah HY, Šarenac O, Arroyo JJ, Vasić M, Lozić M, Glumac S, et al.
    Nanotoxicology, 2017 03;11(2):210-222.
    PMID: 28098511 DOI: 10.1080/17435390.2017.1285071
    Conjugation of Doxorubicin (DOX) to N-(2-hydroxypropyl) methylacrylamide copolymer (HPMA) has significantly reduced the DOX-associated cardiotoxicity. However, the reports on the impact of HPMA-DOX conjugates on the cardiovascular system such as blood pressure (BP) and heart rate (HR) were in restrained animals using tail cuff and/or other methods that lacked the resolution and sensitivity. Herein, we employed radiotelemetric-spectral-echocardiography approach to further understand the in vivo cardiovascular hemodynamics and variability post administration of free DOX and HPMA-DOX. Rats implanted with radio-telemetry device were administered intravenously with DOX (5 mg/kg), HPMA-DOX (5 mg DOX equivalent/kg) and HPMA copolymer and subjected to continuous cardiovascular monitoring and echocardiography for 140 days. We found that DOX-treated rats had ruffled fur, reduced body weight (BW) and a low survival rate. Although BP and HR were normal, spectral analysis indicated that their BP and HR variabilities were reduced. All rats exhibited typical signs of cardiotoxicity at histopathology. In contrast, HPMA-DOX rats gained weight over time and survived. Although BP, HR and related variabilities were unaffected, the left ventricular end diastolic volume (EDV) of these rats, as well as of the HPMA copolymer-treated rats, was found increased at the end of observation period. Additionally, HPMA copolymer caused microscopic injury of the heart tissue. All of these suggest the necessity of caution when employing HPMA as carrier for prolonged drug delivery. The current study also indicates the potential of radiotelemetric-spectral-echocardiography approach for improved preclinical cardiovascular risk assessment of polymer-drug conjugate and other nano-sized-drug constructs.
    Matched MeSH terms: Telemetry
  2. Gillani SW, Syed Sulaiman SA, Abdul MIM, Saad SY
    Curr Diabetes Rev, 2018;14(5):472-480.
    PMID: 28699483 DOI: 10.2174/1573399813666170710183736
    BACKGROUND: Disability is a key indicator implicating both overall morbidity and success of public health efforts to compress the period of morbidity among geriatrics for the overall population. Disabilities are more prevalent among diabetics than among those without diabetes.

    OBJECTIVE: This study aimed to determine self-monitoring practices, awareness to dietary modifications and barriers to medication adherence among physically disabled type 2 diabetes mellitus patients.

    METHODS: Interview sessions were conducted at diabetes clinic - Penang general hospital. The invited participants represented three major ethnic groups of Malaysia (Malay, Chinese & Indians). An openended approach was used to elicit answers from participants. Interview questions were related to participant's perception towards self-monitoring blood glucose practices, Awareness towards diet management, behaviour to diabetes medication and cues of action.

    RESULTS: A total of twenty-one diabetes patients between the ages 35 - 67 years with physical disability (P1-P21) were interviewed. The cohort of participants was dominated by Males (n=12) and also distribution pattern showed that majority of participants were Malay (n=10), followed by Chinese (n=7) and rest Indians (n=4). When the participants were asked in their opinion what was the preferred method of recording blood glucose tests, several participants from low socioeconomic status and either divorced or widowed denied to adapt telemontoring instead preferred to record manually. There were mixed responses about the barriers to control diet/calories. Even patients with high economic status, middle age 35-50 and diabetes history of 5-10 years were influenced towards alternative treatments.

    CONCLUSION: Study concluded that patients with physical disability required extensive care and effective strategies to control glucose metabolism.

    Matched MeSH terms: Telemetry
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