1.Associations of Sex and Household Area With Physical Activity and Sedentary Behavior During Total and Partial COVID-19 Lockdowns in Chile: A Study in Adults Aged 18-44 Years
Jairo VANEGAS-LÓPEZ ; Rodrigo GUZMÁN-VENEGAS ; Gabriel MARZUCA-NASSR ; Claudio MUÑOZ-POBLETE ; Gonzalo QUIROZ-SANDOVAL ; Juan SILVA-URRA ; Andres ORELLANA-URIBE ; Sebastián DUBÓ ; Ignacio SEPÚLVEDA ; José Luis MÁRQUEZ
Journal of Preventive Medicine and Public Health 2025;58(2):177-187
Objectives:
The coronavirus disease 2019 pandemic led to various intensities of lockdowns, affecting lifestyles globally. This study investigates the impact of partial lockdown versus total lockdown on adult physical activity (PA) and sedentary behavior.
Methods:
A cross-sectional online survey was conducted from April 2020 to October 2020, with 493 participants included in the analysis.
Results:
The analysis revealed no significant differences in total PA or total sitting time between partial lockdown and total lockdown scenarios. However, moderate physical activity (MPA) significantly decreased during total lockdowns, with more pronounced reductions among females than males. Notably, a positive correlation was found between household area and MPA, suggesting that larger living spaces may encourage more PA. A negative correlation was observed between sitting time and MPA during both types of lockdown.
Conclusions
Total lockdown conditions were associated with a significant decrease in MPA, highlighting sex disparities in PA responses. Living space size emerged as a crucial factor in maintaining PA levels during restricted conditions. This study emphasizes the need to consider environmental and demographic factors in public health strategies during prolonged periods of restricted movement.
4.Associations of Sex and Household Area With Physical Activity and Sedentary Behavior During Total and Partial COVID-19 Lockdowns in Chile: A Study in Adults Aged 18-44 Years
Jairo VANEGAS-LÓPEZ ; Rodrigo GUZMÁN-VENEGAS ; Gabriel MARZUCA-NASSR ; Claudio MUÑOZ-POBLETE ; Gonzalo QUIROZ-SANDOVAL ; Juan SILVA-URRA ; Andres ORELLANA-URIBE ; Sebastián DUBÓ ; Ignacio SEPÚLVEDA ; José Luis MÁRQUEZ
Journal of Preventive Medicine and Public Health 2025;58(2):177-187
Objectives:
The coronavirus disease 2019 pandemic led to various intensities of lockdowns, affecting lifestyles globally. This study investigates the impact of partial lockdown versus total lockdown on adult physical activity (PA) and sedentary behavior.
Methods:
A cross-sectional online survey was conducted from April 2020 to October 2020, with 493 participants included in the analysis.
Results:
The analysis revealed no significant differences in total PA or total sitting time between partial lockdown and total lockdown scenarios. However, moderate physical activity (MPA) significantly decreased during total lockdowns, with more pronounced reductions among females than males. Notably, a positive correlation was found between household area and MPA, suggesting that larger living spaces may encourage more PA. A negative correlation was observed between sitting time and MPA during both types of lockdown.
Conclusions
Total lockdown conditions were associated with a significant decrease in MPA, highlighting sex disparities in PA responses. Living space size emerged as a crucial factor in maintaining PA levels during restricted conditions. This study emphasizes the need to consider environmental and demographic factors in public health strategies during prolonged periods of restricted movement.
6.Associations of Sex and Household Area With Physical Activity and Sedentary Behavior During Total and Partial COVID-19 Lockdowns in Chile: A Study in Adults Aged 18-44 Years
Jairo VANEGAS-LÓPEZ ; Rodrigo GUZMÁN-VENEGAS ; Gabriel MARZUCA-NASSR ; Claudio MUÑOZ-POBLETE ; Gonzalo QUIROZ-SANDOVAL ; Juan SILVA-URRA ; Andres ORELLANA-URIBE ; Sebastián DUBÓ ; Ignacio SEPÚLVEDA ; José Luis MÁRQUEZ
Journal of Preventive Medicine and Public Health 2025;58(2):177-187
Objectives:
The coronavirus disease 2019 pandemic led to various intensities of lockdowns, affecting lifestyles globally. This study investigates the impact of partial lockdown versus total lockdown on adult physical activity (PA) and sedentary behavior.
Methods:
A cross-sectional online survey was conducted from April 2020 to October 2020, with 493 participants included in the analysis.
Results:
The analysis revealed no significant differences in total PA or total sitting time between partial lockdown and total lockdown scenarios. However, moderate physical activity (MPA) significantly decreased during total lockdowns, with more pronounced reductions among females than males. Notably, a positive correlation was found between household area and MPA, suggesting that larger living spaces may encourage more PA. A negative correlation was observed between sitting time and MPA during both types of lockdown.
Conclusions
Total lockdown conditions were associated with a significant decrease in MPA, highlighting sex disparities in PA responses. Living space size emerged as a crucial factor in maintaining PA levels during restricted conditions. This study emphasizes the need to consider environmental and demographic factors in public health strategies during prolonged periods of restricted movement.
7.Prognostic value of a classification and regression tree model in patients with open-globe injuries
Danica T. Esteban ; Karlo Marco D. Claudio ; Cheryl A. Arcinue
Philippine Journal of Ophthalmology 2024;49(1):28-32
Objective:
To evaluate the accuracy of the Classification and Regression Tree (CART) model in
prognosticating visual outcomes of patients with open-globe injuries
Methods:
This was a retrospective, single-center, cohort study of patients with open-globe injuries seen over
a two-year period. Purposive sampling of hospital medical records was done to collect data from both in- and
out-patient cases. The CART algorithm was utilized to determine the predicted visual outcome for each case,
and the accuracy of prognostication was measured by computing for sensitivity, specificity, positive predictive
value, and negative predictive value. The area under the receiver operating characteristic curve was used to
check its discriminatory capability.
Results:
A total of 65 eyes (65 patients) with the following diagnoses based on the Birmingham Eye Trauma
Terminology (BETT) classification were included: penetrating eye injury (n=58), globe rupture (n=2), and intraocular foreign body (n=5). Majority were male patients (81.5%) in the 17-39 year age group (40%). The
sensitivity and specificity of CART were 100% (95% CI 93.6 to 100%) and 77.8% (95% CI 40 to 97.2%),
respectively, with an overall accuracy of 96.9% (95% CI 89.3 to 99.6%). Area under the curve (AUC) was
statistically significant at 0.89 (95% CI 0.79 to 0.95), indicating that the CART model can discriminate vision
survival versus no vision.
Conclusion
The CART model demonstrated high accuracy in prognosticating visual outcomes after an openglobe injury in the local setting. It may be used as a helpful tool to guide treatment decisions in open-globe injuries.
Eye Injuries, Penetrating
8.Suture-related corneal abscess caused by enterococcus casseliflavus following complicated phacoemulsification surgery
Patricia Kaye T. Sy ; Karlo Marco D. Claudio
Philippine Journal of Ophthalmology 2024;49(1):61-65
Objective:
To report a case of a suture-related corneal abscess caused by Enterococcus casseliflavus on a phacoemulsification corneal incision.
Method:
This is a case report.
Results:
An elderly female underwent complicated phacoemulsification surgery on the left eye requiring sutures
to seal the corneal incisions. Suture removal was incomplete at the side port, and a suture abscess developed
after 9 weeks. Cultures revealed heavy growth of Enterococcus casseliflavus which was initially treated with an
empiric broad-spectrum antibiotic (levofloxacin 1.5%) administered via intrastromal and subconjunctival
injections, followed by culture-guided topical and oral medications. The corneal infection resolved but
significant corneal thinning led to perforation, requiring a modified Gunderson flap procedure to repair the
defect.
Conclusion
Intrastromal and subconjuctival injection of levofloxacin 1.5% may be a viable empiric treatment
option for Enterococcus casseliflavus suture-related corneal abscess.
Phacoemulsification
9.Ocular surface manifestations of ophthalmia nodosa from caterpillar setae
Karlo Marco C. Claudio ; Ulysses Joseph L. Yap
Philippine Journal of Ophthalmology 2024;49(1):71-74
Objective:
To report three consecutive cases of ophthalmia nodosa due to caterpillar hair (setae).
Methods:
This is a brief report.
Results:
Three cases of ocular surface injury with history of contact with caterpillar setae are reported. The
first case is that of a child with right upper lid swelling, papillary conjunctivitis, and setae embedded in the upper palpebral conjunctiva causing multiple distinct linear abrasions on the cornea. The second patient was an adult male who had setae embedded in the corneal stroma, palpebral conjunctiva, and bulbar conjunctiva, resulting in corneal epithelial defect and a conjunctival granuloma. The last was an adult male who had a subconjunctival hemorrhage due to setae penetration. All were managed with setae removal, topical antibiotic and steroid eyedrops, and other symptomatic treatment strategies as needed.
Conclusion
Clinical features of ophthalmia nodosa vary depending on the site of setae penetration. Meticulous
setae removal is key to successful management in addition to inflammation control and infection prophylaxis.
Sensilla
10.Development and Application of Detection Methods for Capture and Transcription Elongation Rate of Bacterial Nascent RNA
Yuan-Yuan LI ; Yu-Ting WANG ; Zi-Chun WU ; Hao-Xuan LI ; Ming-Yue FEI ; Dong-Chang SUN ; O. Claudio GUALERZI ; Attilio FABBRETTI ; Anna Maria GIULIODORI ; Hong-Xia MA ; Cheng-Guang HE
Progress in Biochemistry and Biophysics 2024;51(9):2249-2260
ObjectiveDetection and quantification of RNA synthesis in cells is a widely used technique for monitoring cell viability, health, and metabolic rate.After exposure to environmental stimuli, both the internal reference gene and target gene would be degraded. As a result, it is imperative to consider the accurate capture of nascent RNA and the detection of transcriptional levels of RNA following environmental stimulation. This study aims to create a Click Chemistry method that utilizes its property to capture nascent RNA from total RNA that was stimulated by the environment. MethodsThe new RNA was labeled with 5-ethyluridine (5-EU) instead of uracil, and the azido-biotin medium ligand was connected to the magnetic sphere using a combination of “Click Chemistry” and magnetic bead screening. Then the new RNA was captured and the transcription rate of 16S rRNA was detected by fluorescence molecular beacon (M.B.) and quantitative reverse transcription PCR (qRT-PCR). ResultsThe bacterial nascent RNA captured by “Click Chemistry” screening can be used as a reverse transcription template to form cDNA. Combined with the fluorescent molecular beacon M.B.1, the synthesis rate of rRNA at 37℃ is 1.2 times higher than that at 15℃. The 16S rRNA gene and cspI gene can be detected by fluorescent quantitative PCR,it was found that the measured relative gene expression changes were significantly enhanced at 25℃ and 16℃ when analyzed with nascent RNA rather than total RNA, enabling accurate detection of RNA transcription rates. ConclusionCompared to other article reported experimental methods that utilize screening magnetic columns, the technical scheme employed in this study is more suitable for bacteria, and the operation steps are simple and easy to implement, making it an effective RNA capture method for researchers.


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