1.A Survey on Singaporean Women's Knowledge, Perception and Practices of Mammogram Screening.
Siew Kuan LIM ; Xin Ling TEO ; Jia Lin NG ; Fay X LI ; Su Ming TAN
Annals of the Academy of Medicine, Singapore 2015;44(9):317-325
INTRODUCTIONSingapore is the first Asian country to establish a nationwide breast screening programme, but our breast cancer screening uptake lags behind the Western countries. This survey focused on the subject of screening mammography, to assess the reasons for non-attendance and explore ways to improve our screening uptake.
MATERIALS AND METHODSFemales ≥21 years old were approached at primary healthcare clinics to participate in this survey, which questioned their knowledge, perception and expectations of breast screening.
RESULTSThere were 1011 respondents. Of the 740 respondents ≥40 years old, 332 respondents (45.5%) went for regular mammogram screening. Women who had lower household incomes [<$2000 (OR 0.49; 95% CI, 0.28 to 0.85); $2000 to $3999 (OR 0.59; 95% CI, 0.36 to 0.97)], did not know anyone with breast cancer (OR 0.62; 95% CI, 0.42 to 0.92), did not perform breast self-examination (OR 0.42; 95% CI, 0.28 to 0.62), had lower knowledge scores (OR 0.34; 95% CI 0.22 to 0.51), did not attend other health screening (OR 0.14; 95% CI, 0.05 to 0.41), and perceived mammography as embarrassing (OR 0.55; 95% CI, 0.31 to 0.96), were less likely to attend mammographic screening. Many did not know that screening is for the asymptomatic (51.2%), or the age to start screening (46.3%). Most respondents preferred to have their mammograms in the polyclinics (62.2%) and their screening reminders to be through short messaging service (SMS) (46.0%).
CONCLUSIONOur results show the current influences on Singapore women's screening practices, and also revealed that their understanding of mammogram screening is limited despite a high level of breast cancer awareness.
Adult ; Aged ; Aged, 80 and over ; Breast Neoplasms ; diagnosis ; diagnostic imaging ; Breast Self-Examination ; Early Detection of Cancer ; Female ; Health Knowledge, Attitudes, Practice ; Humans ; Mammography ; Middle Aged ; Patient Acceptance of Health Care ; Singapore ; Surveys and Questionnaires ; Young Adult
2.Müllerian agenesis in the presence of anorectal malformations in female newborns: a diagnostic challenge.
Xin Ling TEO ; Kannan Laksmi NARASIMHAN ; Joyce Horng Yiing CHUA
Singapore medical journal 2015;56(5):e82-4
Rectovestibular fistula is the most common type of anomaly found in a female newborn with anorectal malformation. However, when the baby is found to have two orifices in the introitus, rectovaginal fistula is much less common and suspected. The rare differential diagnosis of Müllerian agenesis, a condition in which the rectum shifts anteriorly and the vagina is absent, is seldom considered. In many cases, the diagnosis of Müllerian agenesis is made only during definitive anorectoplasty. In view of its impact on management, a proper examination under anaesthesia, imaging studies and a diagnostic laparoscopy may be required to confirm the presence or absence of Müllerian structures in such patients. We herein describe a patient with the rare coexistence of VACTERL association and Müllerian agenesis, and discuss the management of anorectal malformations in female patients with Müllerian agenesis.
Abnormalities, Multiple
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diagnosis
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Anal Canal
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abnormalities
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surgery
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Anorectal Malformations
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Anus, Imperforate
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complications
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diagnosis
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surgery
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Child
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Diagnosis, Differential
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Esophagus
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abnormalities
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Female
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Heart Defects, Congenital
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complications
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Humans
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Infant, Newborn
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Kidney
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abnormalities
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Laparoscopy
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Limb Deformities, Congenital
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complications
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Mullerian Ducts
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abnormalities
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Rectal Fistula
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diagnosis
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Rectum
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abnormalities
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surgery
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Spine
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abnormalities
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Trachea
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abnormalities
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Vagina
;
abnormalities
3.Construction of a broad host range expression plasmid vector by Golden Gate cloning
Yuh Leng Teo ; Wai Keat Toh ; Xin Yen Tor ; Chai-Ling Ho ; Pek Chin Loh ; Hann Ling Wong
Malaysian Journal of Microbiology 2021;17(5):588-592
Aims:
Expression of recombinant proteins across a range of different host organisms has profound contribution to the advancement in biotechnology. In this study, we aimed to construct a highly versatile broad host range (BHR) expression vector, designated as pYL101C.
Methodology and results:
The Golden Gate cloning approach was used to construct pYL101C. Key features of pYL101C include a strong integron promoter (PINTc), a BHR pBBR1 origin of replication (ori), gentamycin resistance gene (GmR) as a selectable marker and a multiple cloning site (MCS) downstream of the promoter for easy-cloning purpose. To verify the functionality of pYL101C, we cloned the superfolder green fluorescent protein (sfGFP) reporter gene into pYL101C and transferred the resultant recombinant plasmid pYL101C::sfGFP into various Gram-negative bacteria. Transformants obtained stably expressed strong green fluorescence under blue light excitation even without selection after four passages.
Conclusion, significance and impact of study
The constructed BHR expression vector, pYL101C and recombinant pYL101C::sfGFP are stable and can be used to monitor the presence of Gram-negative bacteria, such as endophytes and pathogens in their hosts and environment.
Host Specificity
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Plasmids
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Cloning, Molecular