1.Blood collection tubes utilized for fasting blood sugar measurement.
Philippine Journal of Pathology 2026;11(1):30-36
BACKGROUND
Diabetes mellitus (DM) remains a major global health burden, with increasing prevalence in developing countries such as the Philippines. Accuracy of glucose measurement is vital for diagnosis and management; however, preanalytical variables, particularly glycolysis from varying collection tubes, temperature and time interval can significantly affect test results. Despite guideline recommendations favoring plasma, serum is still commonly used in local clinical practice.
OBJECTIVEThis study evaluated the effectiveness of different commercially available blood collection tubes in preserving glucose stability by minimizing pre-analytical glycolysis.
METHODOLOGYA cross-sectional observational and quasi-experimental study was conducted among 40 healthy adult participants (18–59 years) from a tertiary institution in Quezon City, Philippines. A total of 160 samples were collected using four tube types (one plasma and three serum tubes). Samples were analyzed at varying time intervals (0–180 minutes) and storage conditions (room temperature and 4°C). Glucose levels were measured using the glucose oxidase method. Statistical analysis included Shapiro–Wilk, Kruskal–Wallis H-test, Welch’s t-test, and Dwass–Steel–Critchlow–Fligner post hoc comparisons at a 1% significance level.
RESULTSGlucose concentrations differed significantly across tube types (pCONCLUSION
Blood collection tube type and delayed processing significantly influence glucose measurements. While acceptable within analytical limits, systematic biases may affect clinical interpretation. Standardization of blood collection practices and stricter pre-analytical protocols are essential to improve diagnostic accuracy for diabetes in the Philippines.
Medical Laboratory Science ; Diabetes Mellitus ; Blood Glucose ; Fasting
2.Genetic Determinants of Carbapenem and Fluoroquinolone Resistance in Escherichia coli Isolates of Clinical Origin
Simbiat Tolani LAWAL ; Fadilulahi Ayokunle USMAN ; Zainab Adepeju ADAMS ; Omoladun Safurat OGUNBAYO ; Chioma Margaret EKWEDIGWE ; Rukayat Olajumoke JIMOH ; Fortunate Opeyemi OLADERU ; Oyindamola OSHO ; Utibeima Udo ESSIET ; Abraham AJAYI ; Stella SMITH
Infection and Chemotherapy 2025;57(1):102-110
Background:
Antimicrobial resistance has emerged as a global public health challenge, leading to higher mortality rates from infections that were once treatable with antibiotics. In this study, we assessed the susceptibility of Escherichia coli strains isolated from clinical samples to carbapenems and fluoroquinolones and screened for genetic determinants mediating resistance.
Materials and Methods:
This retrospective study included 46 E. coli isolates retrieved from the stock culture collection at the Molecular Biology and Biotechnology Department of the Nigerian Institute of Medical Research.Antimicrobial susceptibility testing was performed using the Kirby-Bauer disc diffusion method, and molecular techniques were employed to detect genetic determinants of antimicrobial resistance.
Results:
The E. coli isolates exhibited high resistance to fluoroquinolones, with 72% resistant to ciprofloxacin and 52% to levofloxacin. Resistance to carbapenems was relatively low, with 4% resistant to imipenem and 11% to meropenem. The prevalence of the genetic determinants gyrA, gyrB, and parC, which mediate fluoroquinolone resistance, was 26%, 24%, and 15%, respectively. bla OXA-48 and bla NDM , which mediate carbapenem resistance, were detected in only two isolates. Some isolates harbored plasmids ranging from 5 kb to 16 kb; however, no plasmidmediated genetic determinants conferring fluoroquinolone resistance were identified.
Conclusion
This study revealed a high level of resistance to fluoroquinolones, emphasizing the need for judicious use of antibiotics, particularly those with low resistance rates. Continuous surveillance is essential to monitor emerging trends in resistance among bacterial pathogens.
3.Genetic Determinants of Carbapenem and Fluoroquinolone Resistance in Escherichia coli Isolates of Clinical Origin
Simbiat Tolani LAWAL ; Fadilulahi Ayokunle USMAN ; Zainab Adepeju ADAMS ; Omoladun Safurat OGUNBAYO ; Chioma Margaret EKWEDIGWE ; Rukayat Olajumoke JIMOH ; Fortunate Opeyemi OLADERU ; Oyindamola OSHO ; Utibeima Udo ESSIET ; Abraham AJAYI ; Stella SMITH
Infection and Chemotherapy 2025;57(1):102-110
Background:
Antimicrobial resistance has emerged as a global public health challenge, leading to higher mortality rates from infections that were once treatable with antibiotics. In this study, we assessed the susceptibility of Escherichia coli strains isolated from clinical samples to carbapenems and fluoroquinolones and screened for genetic determinants mediating resistance.
Materials and Methods:
This retrospective study included 46 E. coli isolates retrieved from the stock culture collection at the Molecular Biology and Biotechnology Department of the Nigerian Institute of Medical Research.Antimicrobial susceptibility testing was performed using the Kirby-Bauer disc diffusion method, and molecular techniques were employed to detect genetic determinants of antimicrobial resistance.
Results:
The E. coli isolates exhibited high resistance to fluoroquinolones, with 72% resistant to ciprofloxacin and 52% to levofloxacin. Resistance to carbapenems was relatively low, with 4% resistant to imipenem and 11% to meropenem. The prevalence of the genetic determinants gyrA, gyrB, and parC, which mediate fluoroquinolone resistance, was 26%, 24%, and 15%, respectively. bla OXA-48 and bla NDM , which mediate carbapenem resistance, were detected in only two isolates. Some isolates harbored plasmids ranging from 5 kb to 16 kb; however, no plasmidmediated genetic determinants conferring fluoroquinolone resistance were identified.
Conclusion
This study revealed a high level of resistance to fluoroquinolones, emphasizing the need for judicious use of antibiotics, particularly those with low resistance rates. Continuous surveillance is essential to monitor emerging trends in resistance among bacterial pathogens.
4.Genetic Determinants of Carbapenem and Fluoroquinolone Resistance in Escherichia coli Isolates of Clinical Origin
Simbiat Tolani LAWAL ; Fadilulahi Ayokunle USMAN ; Zainab Adepeju ADAMS ; Omoladun Safurat OGUNBAYO ; Chioma Margaret EKWEDIGWE ; Rukayat Olajumoke JIMOH ; Fortunate Opeyemi OLADERU ; Oyindamola OSHO ; Utibeima Udo ESSIET ; Abraham AJAYI ; Stella SMITH
Infection and Chemotherapy 2025;57(1):102-110
Background:
Antimicrobial resistance has emerged as a global public health challenge, leading to higher mortality rates from infections that were once treatable with antibiotics. In this study, we assessed the susceptibility of Escherichia coli strains isolated from clinical samples to carbapenems and fluoroquinolones and screened for genetic determinants mediating resistance.
Materials and Methods:
This retrospective study included 46 E. coli isolates retrieved from the stock culture collection at the Molecular Biology and Biotechnology Department of the Nigerian Institute of Medical Research.Antimicrobial susceptibility testing was performed using the Kirby-Bauer disc diffusion method, and molecular techniques were employed to detect genetic determinants of antimicrobial resistance.
Results:
The E. coli isolates exhibited high resistance to fluoroquinolones, with 72% resistant to ciprofloxacin and 52% to levofloxacin. Resistance to carbapenems was relatively low, with 4% resistant to imipenem and 11% to meropenem. The prevalence of the genetic determinants gyrA, gyrB, and parC, which mediate fluoroquinolone resistance, was 26%, 24%, and 15%, respectively. bla OXA-48 and bla NDM , which mediate carbapenem resistance, were detected in only two isolates. Some isolates harbored plasmids ranging from 5 kb to 16 kb; however, no plasmidmediated genetic determinants conferring fluoroquinolone resistance were identified.
Conclusion
This study revealed a high level of resistance to fluoroquinolones, emphasizing the need for judicious use of antibiotics, particularly those with low resistance rates. Continuous surveillance is essential to monitor emerging trends in resistance among bacterial pathogens.
5.Factors Associated With Pericardial Effusion and Mortality in Renal Cancer Patients
Kennedy E. OKHAWERE ; Jewel BAMBY ; Indu SAINI ; Nosakhare Paul ILERHUNMWUWA ; David ONOJA ; Iretiayo T. JOEL ; Ranmilowo TEHINSE ; Folashade ADAMS ; Ketan K. BADANI
Journal of Urologic Oncology 2025;23(2):148-163
Purpose:
This study aims to identify determinants of pericardial effusion (PCE) in patients with renal cancer and predictors of in-hospital mortality in patients with renal cancer and PCE.
Materials and Methods:
We conducted a retrospective cohort study using National Inpatient Sample of patients with primary malignant renal cancer data from 2016–2020. A total of 85,288 patients were included in the analysis, of which 763 (0.90%) presented with PCE. The main outcomes of interest were the presence of PCE and the in-hospital mortality rate in patients with renal cancer and PCE.
Results:
The majority of our cohort are aged ≥40 years (96.79%) and males (64.57%). In the bivariate analysis, patients <40 years had higher odds of PCE (adjusted odds ratio [aOR], 1.82; 95% confidence interval [CI], 1.23–2.63). Non-Hispanic Black (aOR, 1.59; 95% CI ,1.30–1.94) and Hispanic patients were associated with an increased odd of PCE odds ratio. Higher Elixhauser comorbidity index (≥4: aOR, 2.27; 95% CI, 1.66–3.08), hypoproteinemia (aOR, 1.49; 95% CI, 1.22–1.81), heart failure (aOR, 2.15; 95% CI 1.83–2.55), metastatic disease (aOR, 1.36; 95% CI, 1.15–1.62), and severe disease presentation (aOR, 6.35; 95% CI, 4.82–8.36) were also significant predictors of PCE. Private insurance was associated with higher PCE odds (aOR, 1.43; 95% CI, 1.20–1.70). Among PCE patients, the in-hospital mortality rate was 13.37%. Self-pay insurance status (aOR, 3.82; 95% CI, 1.05–13.95), metastatic disease (aOR, 1.76; 95% CI, 1.07–2.96), and severe disease presentation (aOR, 3.46; 95% CI, 1.05–8.58) significantly predicted increased mortality.
Conclusion
This study identifies crucial demographic, clinical, and healthcare system factors associated with PCE and in-hospital mortality in renal cancer patients. These findings highlight the need for increased vigilance and tailored surveillance for vulnerable groups and those with higher comorbidity burdens.
6.Cell clusters in intervertebral disc degeneration:an attempted repair mechanism aborted via apoptosis
Polly LAMA ; Jerina TIWARI ; Pulkit MUTREJA ; Sukirti CHAUHAN ; Ian J HARDING ; Trish DOLAN ; Michael A ADAMS ; Christine Le MAITRE
Anatomy & Cell Biology 2023;56(3):382-393
Cell clusters are a histological hallmark feature of intervertebral disc degeneration. Clusters arise from cell proliferation, are associated with replicative senescence, and remain metabolically, but their precise role in various stages of disc degeneration remain obscure. The aim of this study was therefore to investigate small, medium, and large size cell-clusters. For this purpose, human disc samples were collected from 55 subjects, aged 37–72 years, 21 patients had disc herniation, 10 had degenerated non-herniated discs, and 9 had degenerative scoliosis with spinal curvature <45°.15 non-degenerated control discs were from cadavers. Clusters and matrix changes were investigated with histology, immunohistochemistry, and Sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE). Data obtained were analyzed with spearman rank correlation and ANOVA. Results revealed, small and medium-sized clusters were positive for cell proliferation markers Ki-67 and proliferating cell nuclear antigen (PCNA) in control and slightly degenerated human discs, while large cell clusters were typically more abundant in severely degenerated and herniated discs. Large clusters associated with matrix fissures, proteoglycan loss, matrix metalloproteinase-1 (MMP-1), and Caspase-3. Spatial association findings were reconfirmed with SDS-PAGE that showed presence to these target markers based on its molecular weight.Controls, slightly degenerated discs showed smaller clusters, less proteoglycan loss, MMP-1, and Caspase-3. In conclusion, cell clusters in the early stages of degeneration could be indicative of repair, however sustained loading increases large cell clusters especially around microscopic fissures that accelerates inflammatory catabolism and alters cellular metabolism, thus attempted repair process initiated by cell clusters fails and is aborted at least in part via apoptosis.
7. Patient care during interfacility transport: a narrative review of managing diverse disease states
World Journal of Emergency Medicine 2023;14(1):3-9
BACKGROUND: When critically ill patients require specialized treatment that exceeds the capability of the index hospitals, patients are frequently transferred to a tertiary or quaternary hospital for a higher level of care. Therefore, appropriate and efficient care for patients during the process of transport between two hospitals (interfacility transfer) is an essential part of patient care. While medical adverse events may occur during the interfacility transfer process, there have not been evidence-based guidelines regarding the equipment or the practice for patient care during transport.
METHODS: We conducted searches from the PubMed, Cumulative Index of Nursing and Allied Health (CINAHL), and Scopus databases up to June 2022. Two reviewers independently screened the titles and abstracts for eligibility. Studies that were not in the English language and did not involve critically ill patients were excluded.
RESULTS: The search identified 75 articles, and we included 48 studies for our narrative review. Most studies were observational studies.
CONCLUSION: The review provided the current evidence-based management of diverse disease states during the interfacility transfer process, such as proning positioning for respiratory failure, extracorporeal membrane oxygenation (ECMO), obstetric emergencies, and hypertensive emergencies (aortic dissection and spontaneous intracranial hemorrhage).
8.Adverse effect of pre- and postnatal exposure to carbamate and pyrethroid pesticides on cognition in children at 4 and 6 years of age: A prospective study
Enrique M. Ostrea Jr. ; Maria Esterlita V. Uy ; Lisa Chiodo ; Dianne S. Rohlman ; Virginia D. Black ; James Janisse
Acta Medica Philippina 2023;57(1):17-27
Objective:
To determine the adverse effect of pre- and postnatal exposure to carbamate (propoxur) and pyrethroid pesticides on children's cognitive functions at 4 and 6 years of age.
Method:
As part of a prospective cohort study among children with known pre- and postnatal exposure to propoxur and pyrethroids, children were examined at time points, 4 and 6 years, to determine the adverse effect of pesticide exposure on neurocognitive function, i.e., intelligence (IQ) using the WPPSI-III test. Pre- and postnatal pesticide exposures were measured by meconium and hair analysis, respectively, using gas chromatography-mass spectrometry (GCMS).
Results:
Seven hundred twenty-four (724) maternal/children dyads were seen at four years and 717 at six years of age. Their mean (SD) full-scale IQ was low on average: 83.9 (10.2) at four years and 83.6 (8.6) at six years. Prenatal but not postnatal exposure to propoxur (-0.139, p=0.01) and pyrethroids (-0.097, p=0.05) were significantly correlated (negative) with full-scale IQ at four years but not at six years. The confounders that were significantly correlated to full-scale IQ at four and/or six years of age were maternal IQ, child’s weight, height, head circumference, socio-economic status, child environment, and stimulation at home (HOME) violence or abuse at home. Regression analysis of pesticides and confounders showed similar results, except for weight and head circumference.
Conclusion
We conclude that prenatal exposure to propoxur and pyrethroids had a negative effect on the children’s IQ at four years but no longer at six years. Thus, the ability of the child’s IQ to recover from the adverse effect of intrauterine pesticide insult may be attributable to the neuronal plasticity of its brain. Similarly, confounders to these outcome measures are multiple and are essential to address when evaluating the effect of pesticides on neuro-cognitive development in children.
carbamate
9.Patient care during interfacility transport:a narrative review of managing diverse disease states
Tran K. QUINCY ; O'Connell FRANCIS ; Hakopian ANDREW ; Abrahim SH MARWA ; Beisenova KAMILLA ; Pourmand ALI
World Journal of Emergency Medicine 2023;14(1):3-9
BACKGROUND:When critically ill patients require specialized treatment that exceeds the capability of the index hospitals,patients are frequently transferred to a tertiary or quaternary hospital for a higher level of care.Therefore,appropriate and effi cient care for patients during the process of transport between two hospitals(interfacility transfer)is an essential part of patient care.While medical adverse events may occur during the interfacility transfer process,there have not been evidence-based guidelines regarding the equipment or the practice for patient care during transport.METHODS:We conducted searches from the PubMed,Cumulative Index of Nursing and Allied Health(CINAHL),and Scopus databases up to June 2022.Two reviewers independently screened the titles and abstracts for eligibility.Studies that were not in the English language and did not involve critically ill patients were excluded.RESULTS:The search identified 75 articles,and we included 48 studies for our narrative review.Most studies were observational studies.CONCLUSION:The review provided the current evidence-based management of diverse disease states during the interfacility transfer process,such as proning positioning for respiratory failure,extracorporeal membrane oxygenation(ECMO),obstetric emergencies,and hypertensive emergencies(aortic dissection and spontaneous intracranial hemorrhage).
10.Neuroimaging and artificial intelligence for assessment of chronic painful temporomandibular disorders-a comprehensive review.
International Journal of Oral Science 2023;15(1):58-58
Chronic Painful Temporomandibular Disorders (TMD) are challenging to diagnose and manage due to their complexity and lack of understanding of brain mechanism. In the past few decades' neural mechanisms of pain regulation and perception have been clarified by neuroimaging research. Advances in the neuroimaging have bridged the gap between brain activity and the subjective experience of pain. Neuroimaging has also made strides toward separating the neural mechanisms underlying the chronic painful TMD. Recently, Artificial Intelligence (AI) is transforming various sectors by automating tasks that previously required humans' intelligence to complete. AI has started to contribute to the recognition, assessment, and understanding of painful TMD. The application of AI and neuroimaging in understanding the pathophysiology and diagnosis of chronic painful TMD are still in its early stages. The objective of the present review is to identify the contemporary neuroimaging approaches such as structural, functional, and molecular techniques that have been used to investigate the brain of chronic painful TMD individuals. Furthermore, this review guides practitioners on relevant aspects of AI and how AI and neuroimaging methods can revolutionize our understanding on the mechanisms of painful TMD and aid in both diagnosis and management to enhance patient outcomes.
Humans
;
Facial Pain/diagnostic imaging*
;
Artificial Intelligence
;
Temporomandibular Joint Disorders/diagnostic imaging*
;
Neuroimaging/methods*
;
Pain Measurement/methods*


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