2.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.
3.Determination of the ideal timing of delivery among growth- restricted fetuses at less than 32 weeks age of gestation using a stage-based doppler protocol for admitted patients at the Philippine Children’s Medical Center.
Ma. Theresa Acosta Muldong ; Maria Estrella Yu Flores
The Philippine Children’s Medical Center Journal 2023;19(1):1-13
OBJECTIVES:
Early onset fetal growth restriction substantially contributes to neonatal mor-bidities and mortalities. The main dilemma lies on the timing of delivery, especially for pre- and
peri-viable fetuses, due to the challenge in creating an ideal balance of minimized in-utero hy-
poxia-induced fetal injury or death versus the risks of iatrogenic preterm delivery. We wished to
determine the ideal timing of delivery among growth-restricted fetuses <32 weeks gestation us-
ing a stage-based doppler protocol.
MATERIALS AND METHODS:
A retrospective-cohort study of 67 singleton-pregnant wom-
en with growth restriction at <32 weeks gestation and hospitalized from January 2010 to Sep-
tember 2021 was conducted. Medical records were reviewed, and the outcomes were extracted.
The primary outcomes were arterial pH at birth and mortality, while secondary outcomes includ-
ed neonatal morbidities.
RESULTS:
Fetal growth restriction progressed by an average of 3 stages (41.79%) within a 2-
to 3.5-week period. More than half had arterial pH <7.20, which was lowest at Stage II FGR
(50.00%). The prevalence of neonatal
mortality was 16.42% and was lowest at Stage I (8.70%) and Stage II FGR (18.75%).
CONCLUSION
Doppler studies may be conducted weekly for Stage I, biweekly for Stage II,
every 1-2 days for Stage III and every 12 hours for Stage IV. Delivery is ideal at Stage II as this
resulted in the least number of acidosis and neonatal mortalities.
4.A comparative study on depression and anxiety of mice (Mus musculus) on a prebiotic-supplemented diet versus a standard diet during Unpredictable Chronic Mild Stress (UCMS).
Rafael Lorenzo G. VALENZUELA ; Raphael Ian B. VELASCO ; Denzel C. UMEREZ ; Christian Roie D.L. URGENA ; Janelle Audrey C. UY ; Maria Antoinette M. VALDEZ ; Lucille Marie VILLANUEVA-UY ; Nico Angelo R. VINASOY ; Drenzell Ivann A. YU ; Darwin A. DASIG ; Leticia T. IBANEZ
Acta Medica Philippina 2022;56(7):64-72
Background. Anxiety and depression are becoming increasingly prevalent today and are often aggravated by day-to-day stresses. Because current management strategies are usually accompanied by unpleasant side effects, there is a need to look into alternative treatment regimens - such as prebiotics - that may provide equally effective anxiolytic and antidepressant effects.
Objective. Therefore, the study aims to determine the effect of a combined fructooligosaccharide (FOS) and galactooligosaccharide (GOS) supplemented diet on anxiety and depression levels in mice subjected to Unpredictable Chronic Mild Stress (UCMS).
Methods. Forty male BALB/C mice were subjected to UCMS under a pretest-posttest control group design where the treatment group received prebiotic supplementation throughout the study. Repeated measures ANOVA was run to evaluate between, within, and time interactions of the measured anxiety parameters using the light-dark box test, and depression parameter using the fur coat state assessment.
Results. Results show that (1) the FOS + GOS treatment did not give the treatment group an advantage over the control group during UCMS, (2) both groups grew more anxious and depressed over time, and (3) the treatment group grew more anxious with time in relation to control in terms of the total time spent in the light side.
Conclusion. These imply that the UCMS protocol was successful in inducing stress in mice, but the FOS + GOS regimen failed to provide anxiolytic and antidepressant effects on male BALB/C mice exposed to UCMS.
Prebiotics ; Anxiety ; Depression ;
5.Fertility specialist practice in the Philippines during the COVID- 19 pandemic.
Virgilio M. NOVERO ; Maria Antonia E. HABANA ; Marinella Agnes G. ABAT ; Ina S. LRABON ; Mary Liezl N. YU
Philippine Journal of Reproductive Endocrinology and Infertility 2022;19(1):23-29
Objective: To determine the changes in the clinical practice of infertility specialists in the Philippines, specifically, the proportion of specialists who stopped practice, length of break from clinics, the decrease in caseload, changes in consultation platform, screening frequency, number of clinicians that contracted COVI D 19 and safety protocols employed during the COVID - 19 pandemic.
Methods: A cross-sectional study using an online questionnaire given to all members of the Philippine Society for Reproductive Medicine (PSRM) last November 2020. Participants were requested to answer the questionnaire through google spread sheet, with informed consent. All data were collated, summarized and reported in terms of frequencies, and measures of central tendency.
Results: There were 110 active members of the PSRM who participated in the study. There was an overall decrease in the percentage of fertility consultations during the pandemic. There is also a substantial decrease in the caseload from different practices: 45.4% reported more than 50% decrease in !VF-related procedures, 54.5% noted more than 50% decrease in intrauterine insemination procedures, 52.8% reported more than 50% decrease in ovulation induction treatment, and 66.3% reported more than 50% decrease in endoscopic procedures. About 37% of the respondents deferred approximately 5-10 cases for fertility treatment, with 27.3% of the respondents reported deferring embryo transfer to less than 5 couples. More than half of the specialists (51.8%) stopped performing fertility procedures and 68.2% of the respondents completely stopped doing out patient consultations. However, some specialists resumed clinics by May 2020 (30.9%) and June 2020 (30.9%). Upon resumption of clinics, specialists used both face to face consultation and teleconsultation, with the largest proportion of respondents using both platforms. Safety measures employed during face-to-face consultations to prevent disease transmission included hand sanitizers in the clinics, restricted number of people in the waiting room and consultation room, use of personal protective equipment, symptom check prior to face to face consults, installation of air purifiers, and acrylic barriers, and use of health declaration forms. Majority of the specialists are aware of the international and local guidelines regarding infertility care during the pandemic (98.2%) and inform patients regarding the contents of the guidelines (90%).
Conclusion: There is a significant decline in the consultations and fertility procedures during the pandemic. Specialists are well informed of the international and local guidelines regarding fertility care during the pandemic.
COVID -19 ; Fertilization in Vitro ; Reproductive Medicine
6.The impact of the COVID-19 pandemic on fertility centers in the Philippines
Maria Antonia E. Habana ; Virgilio M. Novero Jr ; Marinella Agnes G. Abat ; Ina S. Irabon ; Mary Liezl N. Yu
Philippine Journal of Reproductive Endocrinology and Infertility 2021;18(1):25-32
Objective:
The aim of the study was to determine the impact of the COVID – 19 pandemic on
fertility centers in the Philippines as reflected in the change in caseload for the different types
of fertility procedures and modifications in the physical set up of laboratories, staff and patient
screening.
Methods:
A descriptive cross-sectional study using a questionnaire was administered to all
Philippine Society for Reproductive Medicine (PSRM) accredited fertility centers on November
2020. The study underwent ethics and technical review approval. The medical director or
manager of the centers was requested to answer the questionnaire. All data were collated,
summarized and analyzed.
Results:
All seven PSRM accredited fertility centers participated in the study. There was an
overall decrease in fertility procedures performed in all the centers with most of the centers
reporting a less than 50% decrease in oocyte pick up, less than 75% decrease in frozen embryo
transfer and around 50 – 75% decrease in intrauterine insemination cases. All fertility centers
implemented social distancing, triaging of patients by symptoms, use of personal protective
equipment for doctors and staff, placing alcohol dispensers at the reception area and limiting
the number of people allowed inside the center. Clinical visits were now scheduled and revisions
in informed consent were done.
Conclusion
The majority of local fertility centers experienced a significant decline in fertility
procedures. Modifications to the conduct of their clinic for safety of their staff and patients were
compliant with local and international guidelines.
COVID-19
;
Safety
7. Correlation between incidence of dengue and climatic factors in the Philippines: An ecological study
Ann Kashmer D. Yu ; Sophia Isabel E. Ytienza ; Airees Mae D. Yu ; Vincent Christopher S. Yu ; Keith Alexius K. Wangkay ; Maria Antonia R. Wong ; Marielle Alyanna B. Zamudio ; Eljine Mae T. Zhang ; Wally D. Yumul ; Zakhira Maye R. Zipagan ; Arianna Krystelle R. Yaranon ; Jake Byron C. Zapanta ; Gija B. Ysip ; Catherine Danielle Duque-Lee
Health Sciences Journal 2020;9(2):60-68
INTRODUCTION:
Dengue continues to be a major health concern in the Philippines. This study aimed to establish trends and correlations between the incidence of dengue and rainfall, humidity and temperature, respectively, in the different regions.
METHODS:
Using 2018 records obtained from DOH and PAGASA, correlations were made between monthly
measurements of climatic factors and the incidence of dengue using Pearson’s r, while maps and interpolations were generated using quantum geographical information system software.
RESULTS:
There was a significant positive but weak correlation between the incidence of dengue and rainfall
(r = 0.379, 95% CI 0.255, 0.491; p < 0.001) and humidity (r = 0.215, 95% CI 0.080, 0.342; p = 0.002).
There was a significant negative but weak correlation between the incidence of dengue and temperature (r = -0.145, 95% CI -0.277, -0.008; p = 0.039). A strong positive correlation was noted between the incidence of dengue, and rainfall and humidity, respectively, in several regions. Multiple regression indicates that rainfall, humidity and temperature are poor predictors of the incidence of dengue (R2 = 0.1436, 0.0461 and 0.0209, respectively).
CONCLUSION
This study showed overall a significant but weak correlation between an increased incidence
of dengue and heavy rainfalls and high relative humidity, and a weak negative correlation for temperature. A high positive correlation of an increased incidence of dengue and heavy rainfalls and high relative humidity was observed in several regions.
Dengue
;
humidity
;
temperature
8.Procedural dermatology in the COVID-19 era: an online survey of the Philippine Dermatological Society members and practical recommendations for safe practice
Krisinda Clare C Dim-Jamora ; Maria Jasmin J Jamora ; Jonathan Nevin T Yu ; Johannes F. Dayrit ; ;
Journal of the Philippine Dermatological Society 2020;29(1):63-76
BACKGROUND: The novel COVID-19 (Coronavirus Disease 19) predisposes the general population to a high risk of infection. The 106 million population of the Philippines would be considered an at-risk group due to the high density of the populace in cities. As the situation in each country differs during this era of the COVID-19 pandemic, this paper aims to give practical recommendations for safe procedural dermatology practice in the Philippine setting after the lifting of the government-mandated quarantine.
METHODS: An online survey was conducted among Philippine Dermatological Society members. The survey was sent electronically on March 22, 2020.
RESULTS: A total of 466 or 42% of the PDS’s 1100 current members replied to the survey. The top 10 procedures performed among the respondents are: 1. Electrocautery (N=437, 94.38%), 2. Chemical peeling (N=422, 91.13%), 3. Laser & energy based device treatment (N= 341, 73.65%), 4. Botulinum toxin injection (N=323, 69.76%), 5. Excision (N=263, 56.80%), 6. Acne surgery (N=176, 38.01%), 7. Injectable Filler (N=171, 36.93%), 8. Cryotherapy (N=145, 31.32%), 9. Platelet rich plasma injection (N=111, 23.97%) and 10. Scar revision (N=85, 18.36%). The majority of the respondents have access to personal protective equipment (PPE) such as surgical masks (N=457, 98.7%), face shields (57.67%), goggles (46.00%), protective gown (42.76%) and bonnets (32.83%). Before the government quarantine, the majority (N=375, 81.17%) of respondents see patients on a firstcome, first-serve system. Only 18.83% (N=87) see patients only by appointment. Regarding teledermatology, most respondents answered that they would advise patients to do digital consultation with only a minority responding they would not consider doing teledermatology.
CONCLUSIONS: In the Philippine setting, the best ways to prevent COVID infection inthe procedural dermatology setting include:
1. Education of staff and patients on proper exposure prevention and sanitation measures.
2. Ensuring the correct usage of PPE.
3. Ensuring physical distancing and reducing patient wait times by scheduling visits on an appointment basis.
4. Sufficient protocols must be made for sanitation before and after each patient visit.
5. Teledermatology in pre-procedure consults and post-procedure follow-ups would reduce the risk of COVID-19 transmission for both patient and physician.
Leprostatic Agents
;
Drug Therapy, Combination
;
Leprosy
;
Recurrence
;
Chronic Disease
9.Prevalence of depression among medical students in a private medical school: A cross-sectional study.
Paulina Nicole G. Vitocruz ; Ann Pauline G. Vivar ; Georgene Danielle R. Whang ; Namfon M. Wonglue ; Ynh-Chun Wu ; Larimel Jean P. Yadao ; Ann Melody Y. Yao ; Jacob C. Ybanez ; Adrian B. Yu ; Jose Luisito A. Zulueta ; Jose Ronilo G. Juangco ; Maria Paz S. Garcia
Health Sciences Journal 2019;8(2):122-126
INTRODUCTION:
Medical students are susceptible to depression due to the constant exposure to stressful situations and almost 30% of medical students suffer from depression. This study aimed to determine the prevalence of depression among first- to third-year medical students in a private medical institution.
METHODS:
A descriptive, cross-sectional study design was employed on first- to third-year medical students selected through simple random sampling. They were asked to answer the Patient Health Questionnaire-9 for the assessment of depression.
RESULTS:
The prevalence of moderate to severe depression was 19.1%. Almost 15% of the first-year medical students, 23.7% of the second-year medical students and 18.3% of the third-year students were found to have a risk of having depression. Twenty-one percent of the male students and 18.4% of the females were classified to have depression.
CONCLUSION
Almost one-fifth of the first- to third-year medical students in the private medical institution have depression. The highest prevalence of having depression was among second-year medical students, males, 20 to 22 years old.
Depression
10.Attitudes, behaviors and beliefs of urban adult Filipinos on sunlight exposure: A qualitative study
Marc Gregory Yu ; Nina Castillo-Carandang ; Maria Elinor Grace Sison ; Angelique Bea Uy ; Katrina Lenora Villarante ; Maria Patricia Deann Maningat ; Elizabeth Paz-Pacheco ; Eileen Abesamis-Cubillan
Journal of the ASEAN Federation of Endocrine Societies 2018;33(1):37-43
Objective:
To explore the attitudes, behaviors, and beliefs of urban adult Filipinos on sunlight exposure as an initial step in the development and validation of a culturally-appropriate questionnaire.
Methodology:
Focus groups were conducted among urban Filipinos 19 years old and above (n=38). The transcribedresults underwent qualitative content and thematic analyses and were used to develop a conceptual framework.
Results:
Qualitative analysis revealed four main themes of sunlight exposure: internal influences, external influences,perceived benefits, and perceived risks. Both internal and external influences lead to perceived risks and benefits.Consequently, the perceived benefits (or lack) of sunlight exposure influence an individual’s attitude towards vitamin D supplementation; whereas the perceived risks of sunlight exposure influence an individual’s attitude towards the needfor sun protection
Conclusion
The attitudes, behaviors and beliefs of urban adult Filipinos on sunlight exposure are influenced by bothinternal and external factors, that in turn lead to perceived risks and benefits. An increased awareness of these factorsis necessary to establish future recommendations on proper sunlight exposure in this population. The study results willbe used to develop and validate a culturally-appropriate sunlight exposure questionnaire.
Urban Health
;
Public Health
;
Qualitative Research


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