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The Risk of Upper Urinary Tract Involvement in Patients With Ketamine-Associated Uropathy
Chi-Hang Yee,Jeremy Yuen-Chun Teoh,Pui-Tak Lai,Vivian Yee-Fong Leung,Winnie Chiu-Wing Chu,Wai-man Lee,Yuk-Him Tam,Chi-Fai Ng 대한배뇨장애요실금학회 2017 International Neurourology Journal Vol.21 No.2
Purpose: The aims of this study were to investigate the prevalence of upper tract involvement in ketamine-associated uropathy, and to determine the predictors of hydronephrosis in patients with a history of ketamine abuse. Methods: This was a cross-sectional study of a prospective cohort of patients with ketamine-associated uropathy. Data including demographics, pattern of ketamine abuse, pelvic pain and urgency or frequency (PUF) symptom score, uroflowmetry (UFM) parameters, serum renal function, and liver function tests were collected. Upon consultation, ultrasonography was performed to assess the function of the urinary system. Results: From December 2011 to October 2015, we treated 572 patients with ketamine-associated uropathy. Of these patients, 207 (36.2%) had managed to achieve abstinence at the time of their first consultation. Ninety-six patients (16.8%) in the cohort were found to have hydronephrosis on ultrasonography. Univariate analysis identified age, duration of ketamine abuse, PUF symptom score, voided volume on UFM, serum creatinine levels >100 μmol/L, and an abnormal serum liver enzyme profile as factors associated with hydronephrosis. Logistic regression revealed the following parameters to be statistically related to hydronephrosis: age (adjusted odds ratio [OR], 1.090; 95% confidence interval [CI], 1.020–1.166; P=0.012), functional bladder capacity (adjusted OR, 0.997; 95% CI, 0.995–0.999; P=0.029), serum creatinine >100 μmol/L (adjusted OR, 3.107; 95% CI, 1.238–7.794; P=0.016, and an abnormal serum liver enzyme profile (adjusted OR, 1.967; 95% CI, 1.213–3.187; P=0.006). Conclusions: Ketamine-associated uropathy can involve the upper urinary tract. Patient demographics as well as investigations of UFM, renal function tests, and liver function tests may allow us to identify at-risk patients.
Ummi Wahidah Azlan,Yee Ling Lau,Mun Yik Fong 대한기생충학ㆍ열대의학회 2022 The Korean Journal of Parasitology Vol.60 No.6
Human infection with simian malaria Plasmodium knowlesi is a cause for concern in Southeast Asian countries, especially in Malaysia. A previous study on Peninsular Malaysia P. knowlesi rhoptry associated protein-1 (PkRAP1) gene has discovered the existence of dimorphism. In this study, genetic analysis of PkRAP1 in a larger number of P. knowlesi samples from Malaysian Borneo was conducted. The PkRAP1 of these P. knowlesi isolates was PCR-amplified and sequenced. The newly obtained PkRAP1 gene sequences (n=34) were combined with those from the previous study (n=26) and analysed for polymorphism and natural selection. Sequence analysis revealed a higher genetic diversity of PkRAP1 compared to the previous study. Exon II of the gene had higher diversity (π=0.0172) than exon I (π=0.0128). The diversity of the total coding region (π=0.0167) was much higher than those of RAP1 orthologues such as PfRAP-1 (π=0.0041) and PvRAP1 (π=0.00088). Z-test results indicated that the gene was under purifying selection. Phylogenetic tree and haplotype network showed distinct clustering of Peninsular Malaysia and Malaysian Borneo PkRAP1 haplotypes. This geographical-based clustering of PkRAP1 haplotypes provides further evidence of the dimorphism of the gene and possible existence of 2 distinct P. knowlesi lineages in Malaysia.
Tengku-Idris Tengku Idzzan Nadzirah,Fong Mun Yik,Lau Yee Ling 대한기생충학ㆍ열대의학회 2020 The Korean Journal of Parasitology Vol.58 No.1
Sarcocystosis was diagnosed worldwide by serodiagnostic tests utilising the whole parasite, for which the protozoa were maintained in vitro are more costly. In this study, antigenicity of Sarcocystis falcatula recombinant protein (rSfSAG4) was investigated towards the local communities of Pangkor and Tioman Islands and its seroprevalence was surveyed in these islands. A total of 348 human sera were tested using rSfSAG4 by Western blot and ELISA. High prevalence of sarcocystosis was observed in Tioman Island (80.6%) than in Pangkor Island (50.0%) by Western blot. In ELISA, the seroprevalence observed in Tioman Island was 45.9%, whereas in Pangkor Island 63.0%. In other parasitic infections, the prevalence was 34.0% by Western blot and 46.0% by ELISA. In healthy control group, 7% by Western blot and 8% by ELISA showed positivity to rSfSAG4. It is suggested SfSAG4 is a candidate antigen to measure seroprevalence of sarcocystosis.
Lam, Simon Ching,Chong, Andy Chun Yin,Chung, Jessie Yuk Seng,Lam, Ming Yee,Chan, Lai Man,Shum, Cho Yee,Wong, Eliza Yi Ni,Mok, Yat Man,Lam, Ming Tat,Chan, Man Man,Tong, Ka Ying,Chu, Oi Lee,Siu, Fong Ki 한국성인간호학회 2020 성인간호학회지 Vol.32 No.1
Purpose: This study aimed to establish the translation adequacy and examine the psychometric properties of FaceMask Use Scale (FMUS). Methods: This methodological study employed a cross-sectional design with repeatedmeasures. Phase 1 examined the equivalence and relevance of English and Chinese versions of FMUS. Phase2 examined the internal consistency, stability and construct validity. Different sample batches (213 universitystudents and 971 general public) were used appropriately for psychometric testing. The 2-phase data were collectedbetween January and April 2017. Results: In Phase 1, the semantic equivalence and relevance (item- and scale-levelcontent-validity-index=100%) was satisfactory. Furthermore, from 133 paired test-retest responses, the quadraticweighted kappa (.53~.73, p<.001) and Intraclass Correlation Coefficient (ICC=.81) between the English andChinese version of FMUS were satisfactory. In Phase 2, FMUS demonstrated satisfactory internal consistency(Cronbach’s ⍺=.80~.81; corrected item-total correlation coefficients=.46~.67) and two-week test-retest stability(ICC=.84). The known-groups method (t=3.08, p<.001), exploratory (71.10% of total variance in two-factor model)and confirmatory factory analysis (x2/df=4.02, Root Mean Square Residual=.03, Root Mean Square Error ofApproximation=.06, Goodness of Fit Index=.99, Comparative Fit Index=.99) were all satisfactory for establishingthe construct validity. Conclusion: The FMUS has an equivalence Chinese and English versions, satisfactoryreliability and validity for measuring the practice of face mask use. This poses clinical and research implications forthose community health nurses who works on respiratory protection. Further research should be conducted on the‘negligent practice’ of FMU.