Needlestick Injury Cases And Adherence To The Follow-Up Protocol Among Healthcare Workers In Selangor

@#Needlestick injury (NSI) is a serious occupational hazard against healthcare workers (HCWs) in a hospital setting with multiple implications, thus adherence to post-NSI management including follow-up protocol is crucial.This research was conducted to describe the distribution of NSI cases among HCWs working in Ministry of Health Malaysia (MOH)’s hospital in Selangor and adherence to a follow-up protocol, as well as the factors related to it.This was a cross-sectional quantitative study reviewing retrospectively all notified NSI cases in January-September 2016. Data were taken from Sharps Injury Surveillance (SIS) system and analyzed into descriptive and analytical statistics.There were 143 notified NSI cases. The majority of the cases were female(76.2%), Malay(60.1%), medical doctors(56.6%) and in a medical-based department (44.8%). The median age of NSI cases was 27 years old (IQR:5) and median years of employment was 1.5 (IQR:4.5). Most cases happened in a ward setting (58.7%) involving contaminated (95.8%) hypodermic needle (43.4%), occurred mostly during the procedure of drawing blood (23.1%). Only 86.7% of NSI cases were source-known and some were tested positive with blood borne pathogens. However, no occurrence of seroconversion among the injured HCWs detected. The overall adherence rate to the follow-up protocol was 72.3%. Multiple logistic regression yielded significant association between age, gender, department, device contamination, procedure conducted and source HBV status with adherence to follow-up of post-NSI protocol. Further comprehensive studies involving more determinants such as therapy-related factors and potential interventions are needed to optimize adherence rate to the follow-up protocol post-NSI.

Does Chlorella vulgaris Modulate the Expression of COL and MMP Genes in Skin Ageing?

Chlorella vulgaris, a unicellular microalgae, produces many intracellular phytochemicals namely carotenoids, tocopherols, ubiquinone and protein. Skin ageing which is induced by oxidative stress involves decreased extracellular matrix synthesis and increased expression of enzymes that degrade the collagenous matrix. The objective of this study was to determine the effect of C. vulgaris on the expression of genes encoded for collagen (COL) and matrix metalloproteinases (MMPs) which are involved in skin ageing. Human diploid fibroblasts (HDFs) were obtained from circumcision foreskin of 8-12 year-old boys. HDFs were cultured into 3 groups: untreated control cells, cells with stress-induced premature senescence (SIPS; cells were induced with H2O2 at passage 6 for 2 weeks) and SIPS treated with C. vulgaris (prolonged C. vulgaris treatment started at passage 4 and combined treatment with H2O2 at passage 6 for 2 weeks). Senescence-associated ß-galactosidase (SA ß-gal) was determined using senescent cells histochemical staining kit (Sigma, USA). Expression of COLI, COLIII, COLIV, MMPI, MMPII and MMPIII genes was quantitatively analysed with real-time RT-PCR method (iScript™ One Step real-time PCR with SYBR® Green; Biorad). HDFs treated with H2O2 (SIPS) exhibited senescent morphological features of flattening and enlarged with increased expression of SA ß-gal (p<0.05). Gene expression analysis showed COLI was downregulated in SIPS and SIPS treated with C. vulgaris (p<0.05) while COLIII decreased in SIPS and increased in SIPS treated with C. vulgaris (p<0.05). Expression of MMPI was increased in SIPS and SIPS treated with C. vulgaris (p<0.05) indicating its synergistic effect with H2O2 treatment. In conclusion, in skin ageing, COLI and COLIII genes were downregulated while MMPI was upregulated. C. vulgaris modulated the expression of COL and MMP genes by downregulating COLI and upregulating COLIII and MMPI but it did not exert anti-ageing effect.