1.Sustained antibody response to a linear epitope of Nipah virus fusion protein in human survivor serum samples
Ting L.J ; Tan X.L. ; Tiong V. ; Abubakar S. ; Abdullah I. ; Karsani S.A. ; Chan K-G. ; Chua K-O ; Yong H-S. ; Liew Y.J.M.
Tropical Biomedicine 2026;43(No. 1):5-15
Nipah virus (NiV), a pathogen with pandemic potential, lacks approved treatments or vaccines,
highlighting the urgent need for research on immune-targeted antigenic determinants. A significant
gap persists in NiV research, as studies on the fusion (F) protein critical for viral entry as well as the B
cells epitopes, have primarily focused on computational prediction rather than experimental validation
of immunogenic epitopes obtained through immunoinformatics approach. This study focused on the
conserved F protein across NiV human isolates and employed an immunoinformatics approach to
predict linear B-cell epitopes capable of direct immune activation. Predicted epitopes were screened
for antigenicity, toxicity, and allergenicity. Molecular docking analysis was performed to evaluate
its binding affinity with B-cell receptors (BCRs). To validate its immunogenicity, the LF6 peptide was
synthesized and used in an indirect ELISA to test sera from cohort previously infected with NiV as well
as with negative cohort. Epitope LF6 (LISNIEIGFCL) was identified as a strong candidate based on its
immunogenic properties. Molecular docking showed favorable binding of LF6 with BCR. ELISA results
revealed that one sera from the survival cohort showed positive response which is an IgG antibody
response 2-fold higher (0.343) than the cut-off value (0.0171). This study provides the first reported
evidence linking computational predictions with functional immune reactivity for a B-cell epitope of
NiV. The findings suggest that LF6 has the potential to elicit specific immune responses. However, given
the small sample size, further validation in larger cohorts is essential to confirm LF6’s vaccine relevance.
2.Haemaphysalis wellingtoni (Acari: Ixodidae) from the spotted wood owl (Strix seloputo) (Aves: Strigiiformes): a new tick-host record in Peninsular Malaysia
Tan Tan, L.P. ; Roslan N.S. ; Kazim A.R. ; Che Wan Zalati ; C.W.S. ; Hassan H. ; Heo C.H.
Tropical Biomedicine 2026;43(No. 1):16-21
Multiple engorged tick nymphs (n= 6) were collected from an injured spotted wood owl (Strix seloputo)
in Kelantan, Peninsular Malaysia. Morphological identification of the nymphs revealed that the ticks
were Haemaphysalis wellingtoni, based on several distinctive features: (1) internal edge of palpal
article III extending far beyond the internal edge of palpal article II; and (2) four feathery and closespaced infrainternal setae. Subsequent molecular analysis of a randomly selected nymph targeting the
mitochondrial 16S gene corroborated with the species identity of the tick. To date, this is first report of
the infestation of H. wellingtoni on S. seloputo. Future studies are needed to determine whether native
or endemic birds may serve as disseminators of ticks and tick-borne diseases.
3.Finerenone in kidney transplantation: an underinvestigated agent: review of available evidence, existing gaps, and future directions
Muhammad Abdul Mabood KHALIL ; Nihal Mohammed SADAGAH ; Muhammad Shahab Uddin KHALIL ; Hideki ISHIDA ; Jackson TAN ; Salem H AL-QURASHI
Clinical Transplantation and Research 2026;40(1):1-27
Emerging data on finerenone have drawn significant interest from nephrologists and cardiologists for its clinical potential in patient management. Its nonsteroidal structure, greater receptor selectivity, and reduced risk of hyperkalemia make it a distinctive choice for clinicians. Mineralocorticoid receptors (MRs) are expressed in the collecting ducts, endothelial and vascular smooth muscle cells of the interlobar arteries, as well as in podocytes, mesangial cells, and renal fibroblasts. These receptors are also present in cardiovascular and inflammatory cells. MR activation contributes to ischemia-reperfusion injury (IRI) and mediates calcineurin inhibitor (CNI) toxicity, proteinuria, and fibrosis in both the cardiovascular system and kidneys. Blocking MR activation with finerenone may exert therapeutic effects in renal allografts by mitigating IRI, preventing CNI toxicity, reducing proteinuria and renal fibrosis, and lowering the risk of renal and cardiovascular events. Preclinical and clinical studies in the general population with diabetes have demonstrated that finerenone effectively reduces proteinuria and improves renal and cardiovascular outcomes. However, clinical evidence in kidney transplant recipients remains extremely limited, and the efficacy and safety of finerenone in this population are yet to be established. To date, no clinical trials specifically investigating finerenone in kidney transplantation have been published, with only the EFFEKTOR trial currently underway. This review discusses the mechanistic rationale, extrapolates evidence from nontransplant populations, identifies key knowledge gaps, and proposes future research directions to evaluate the safety and efficacy of finerenone in kidney transplant recipients.
4.Interprofessional education exposure and attitudes toward collaboration among allied health graduates in the Philippines: A cross-sectional study.
Paolo Miguel P. Bulan ; Nikki Y. Pestañ ; o ; Romel V. Cabazor ; Marelen H. Amanuence ; Lois Vanjie G. Napalit ; Niñ ; o Paolo M. Tan ; Catherine S. Malaca ; Eubina C. Estoy
Acta Medica Philippina 2026;60(9):58-67
BACKGROUND
The global impact of the COVID-19 pandemic has instigated a profound public health crisis, particularly affecting professionals like dentists who, due to their close interaction with saliva—a potential viral reservoir—and the aerosols generated during specific procedures, face elevated risks of infection. To mitigate this, the Centers for Disease Control and Prevention (CDC) and the Philippine Dental Association (PDA) have established guidelines for averting cross-infection in dental settings
OBJECTIVEThis study, conducted in an urbanized Metro Manila City, delves into the infection control practices of dentists amid the pandemic.
METHODSDentists from a Metro Manila city dental chapter were invited to participate in an online survey (Google Forms) consisting of participants' demographics, patient triage, engineering, administrative controls, disinfection personal hygiene, personal protective equipment (PPE), and waste management practices. Descriptive statistics, employing frequency distributions and percentages, summarized the dentists' adherence to infection control protocols.
RESULTSOut of forty-nine respondents (49), the majority (92%) provided their teams' orientation on COVID-19 infection control protocols before reopening. Notably, 57% deferred elective procedures and 43% postponed aerosolgenerating procedures (AGPs). Only 39% utilized rubber dam isolation during AGPs. Most respondents reported full implementation of recommended administrative controls during the pandemic, with 92% isolating their treatment areas from other parts of the clinic. Most respondents adopted high-efficiency particulate air (HEPA) filtration units (82%) as one of their clinic’s engineering controls, and an extraoral vacuum machine, accounting for 71% of the respondents. The most common disinfection product used by the participants was alcohol, which was at 94%. Additionally, over 90% adhered to all recommended hand hygiene practices for both dental staff and patients. For the waste management protocols, only 55% of the respondents have their infectious waste collected by third-party Treatment Storage and Disposal (TSD) facilities.
CONCLUSIONThe data shows that with the guidelines posted by both the PDA and CDC, the city’s dental practitioners could still provide services to the community in the safest manner at the time by being updated and following the infection control practices suggested by both organizations. Although some areas could have been improved, such as third-party waste management and the utilization of RT-PCR testing, some of these problems could have been attributed to the lack of availability in their areas.
Public Health ; Philippines ; Interprofessional Education ; World Health Organization ; Centers For Disease Control And Prevention, U.s. ; Centers For Disease Control And Prevention (u.s.)
5.Hydrogen and Methane Breath Test: The Asian Neurogastroenterology andMotility Association Monograph
Yinglian XIAO ; Kewin T H SIAH ; Mengyu ZHANG ; Benjamin Wei Rong TAY ; Kee Huat CHUAH ; Victoria TAN ; Yen Po WANG ; Yingxuan CHEN ; Ling LIU ; Uday C GHOSHAL ; Justin C Y WU ; Xiaohua HOU
Journal of Neurogastroenterology and Motility 2026;32(2):150-171
Despite of the widespread use of hydrogen and methane breath test, the variability in testing protocols, gas measurement techniques, and interpretation criteria continues to challenge the reproducibility and comparability across centers, especially in the Asia-Pacific region. The Asian Neurogastroenterology and Motility Association hence presents the first Asian monograph guiding application and interpretation of breath test. The monograph was formulated according to the framework of indications, preparatory process, performance, and interpretation of results, as well as future direction for research.
6.Bali Chronic Constipation Roundtable Report: Chronic ConstipationManagement in Asia
Yi Ping REN ; Wah Loong CHAN ; Kee Huat CHUAH ; Yong Sung KIM ; Atsushi NAKAJIMA ; Sanjiv MAHADEVA ; Yeong Yeh LEE ; Andrew S B CHUA ; Tao BAI ; Ari Fahrial SYAM ; Chien-Lin CHEN ; Ching-Liang LU ; M. Masudur RAHMAN ; Tanisa PATCHARATRAKUL ; Victoria Ping Y TAN ; Dao Viet HANG ; Xiaohua HOU ; Yinglian XIAO ; Justin WU ; Uday C GHOSHAL ; Hidekazu SUZUKI ; Sutep GONLACHANVIT ; Kewin T H SIAH
Journal of Neurogastroenterology and Motility 2026;32(1):109-128
Background/Aims:
Chronic constipation is prevalent yet under-diagnosed across Asia, compromising quality of life and burdening healthcare systems. Cultural stigma, varied diets, and limited access to standardized diagnostic tools delay timely care.
Methods:
The Bali Chronic Constipation Roundtable in November 2024, brought together experts from 11 Asian countries. The group reviewed epidemiological data, analyzed multinational questionnaire on clinical practice pattern, and conducted structured discussions to identify key barriers and propose region-specific recommendations.
Results:
Chronic constipation prevalence varies across Asia, ranging from 1.8% in India to 16.6% in Japan, with women and the elderly disproportionately affected. Under-reporting persists owing to cultural taboos and widespread self treatment with laxatives and traditional medications. Although the Rome IV criteria remains the global standard, they may not fully reflect Asian symptom profiles, and diagnosis is limited by scarce motility laboratories. First line therapies such as dietary-fiber optimization and osmotic laxatives are widely available, but newer pharmacotherapies (prucalopride, linaclotide, lubiprostone, and elobixibat) remain costly and unevenly accessible. Biofeedback for dyssynergic defecation is underutilized due to limited availability. Experts recommend expanded regional research on to refine diagnostic criteria, coupled with enhanced physician education and public awareness. They advocate accessibility to second-line and novel therapies that incorporate culturally attuned regional guidelines, and improved access to gastrointestinal motility testing.
Conclusions
The Bali Chronic Constipation Roundtable highlighted Asia’s need for region specific diagnostics and management. Addressing diagnostic and treatment gaps will improve outcomes, while ongoing researcher clinician policy collaboration must standardize guidelines, advance research, and ensure equitable care across Asia.
7.A predictive nomogram for selective screening of asymptomatic vertebral fractures: The Vietnam Osteoporosis Study
T. NGUYEN ; Bao T. NGUYEN ; An V. TRAN ; Tan T. NGUYEN ; Long H. NGO ; Tam VO ; Thi H NHUNG THAI ; Linh D. MAI ; Thach S. TRAN ; Tuan V. NGUYEN ; Lan T. HO-PHAM
Osteoporosis and Sarcopenia 2025;11(1):9-14
Objectives:
Vertebral fractures are associated with disability and mortality, but most vertebral fractures are asymptomatic. The present study aimed to determine the incidence of and develop a predictive nomogram for asymptomatic vertebral fractures in Vietnamese adults.
Methods:
This cohort study as a part of the Vietnam Osteoporosis Study involved 168 men and 287 women aged 50 years and older without a clinically diagnosed vertebral fracture. Their spine x-rays were taken at the recruitment and subsequent 2-year visit. Vertebral fractures were ascertained using the Genant’s semiquantitative method. We employed the Bayesian Model Averaging method to search for the optimal model for predicting asymptomatic vertebral fractures. A predictive nomogram was also developed to facilitate risk prediction.
Results:
During a median of 2.38 years of follow-up, 13 men and 16 women developed an asymptomatic vertebral fracture, yielding the overall incidence rate of 28 fractures per 1000 person-years, or 33 fractures/1000 personyears in men and 24 fractures/1000 person-years in women, respectively. Most asymptomatic vertebral fractures were moderate, almost 1.5 times more common than mild fractures. The optimal model for predicting incident asymptomatic vertebral fractures included age, male sex and lower femoral neck T-score. The area under the receiver’s operating characteristic curve was 0.91, with 95% CI ranging from 0.86 to 0.96.
Conclusions
Asymptomatic vertebral fractures were relatively common among adults in Vietnam. A simple model with sex, age and femoral neck T-score is helpful for selective screening of asymptomatic vertebral fractures in Vietnamese individuals.
8.A comparative analysis on the latest international and local guidelines for the management of hypertension.
Aloysius Sheng-Ting LEOW ; Ashish Anil SULE ; Jam Chin TAY ; Hui Hwang TEONG ; Wai Lun MOY ; Pankaj Kumar HANDA ; Yik Tian WU ; Veerendra Melagireppa CHADACHAN ; Vernon Min Sen OH ; Ching-Hui SIA ; Kian-Keong POH ; Boon Wee TEO ; Troy H PUAR
Singapore medical journal 2025;66(5):240-243
9.The trojan horse - A case of transthyretin cardiac amyloidosis diagnosed via multi-modality imagin
Gwen R. Marcellana ; Lynnette Marie C. Tan ; Jared Alphonse S. Cordero ; Carmen N. Chungunco ; Christian Michael H. Pahway ; Nathania S. Fajardo
Philippine Journal of Cardiology 2025;53(1):115-120
BACKGROUND
Observational studies have increasingly reported transthyretin amyloid cardiomyopathy (ATTR-CM) as an under-recognized cause of heart failure. We report the first ATTR-CM diagnosed via multi-modality imaging in the Philippines signifying an important milestone in recognition and management of this formerly believed rare disease, locally. Utilization of non-invasive imaging such as echocardiography, cardiac MRI and technetium-99m pyrophosphate scintigraphy (PYP) demonstrates the potential for accurate diagnosis as well as timely and appropriate treatment strategies.
DISCUSSIONAn 81/M Filipino with a history of carpal tunnel surgery, post-percutaneous coronary intervention (PCI), had three months’ history of refractory heart failure symptoms despite optimized medical treatment. His 2D-echo showed an ejection fraction (EF): 45%-50%, increased left ventricular (LV) posterior wall thickness with mild basal inferior wall hypokinesia and ECG: atrial fibrillation with low voltage. Speckle tracking imaging showed average global longitudinal strain: - 6.5% with cherry-on-top pattern on polar strain map. Cardiac MRI demonstrated diffuse late gadolinium enhancement from endocardial to transmural layers of biventricular and biatrial walls, highly suggestive of cardiac amyloidosis (CA). Light-chain amyloidosis was excluded by negative serum/urine protein electrophoresis/immunofixation. Tc-99m PYP scan revealed greater myocardial-than-bone uptake with a Perugini score 3 and calculated heart-to-contralateral ratio of 1.7. Congestion was controlled with intravenous loop diuretics and he was discharged stable with metoprolol succinate, dapagliflozin and apixaban. At the time of paper submission, he is currently being evaluated for tafamidis treatment.
CONCLUSIONThe case highlighted the advantage of multi-modality imaging for noninvasive yet accurate identification of the disease. A tailored approach is required in slowing the disease progression and improving outcomes.
Human ; Male ; Amyloidosis ; Cardiomyopathies ; Percutaneous Coronary Intervention ; Sodium Potassium Chloride Symporter Inhibitors
10.Concurrent late post-tonsillectomy hemorrhage and dengue fever in a 17-Year-old girl: A case report
Josephine Grace R. Tan ; Rachel Zita H. Ramos
Philippine Journal of Otolaryngology Head and Neck Surgery 2025;40(Supplement):21-23
OBJECTIVE
To present the case of a 17-year-old girl who was readmitted post-tonsillectomy due to dengue fever, hematemesis and late tonsillar bleeding three weeks after the surgery.
METHODSDesign:Case Report
Setting:Tertiary Government Training Hospital
Patient: One
RESULTSA previously healthy 17-year-old Filipino girl underwent uncomplicated elective tonsillectomy for chronic hypertrophic tonsillitis. Twenty days post-operatively, she developed fever, thrombocytopenia and massive hematemesis. Despite intensive care management for severe dengue fever with concurrent late post-tonsillectomy bleeding, the patient died from hemorrhagic shock on post-operative day 21.
CONCLUSIONThis appears to be the first reported case of concurrent late post-tonsillectomy hemorrhage and dengue fever in a previously healthy adolescent girl. In dengue-endemic areas, post-tonsillectomy patients should be counseled about dengue prevention and advised to seek medical attention for persistent fever. Early recognition and management of this potentially fatal combination is crucial for improving patient outcomes.
Human ; Female ; Adolescent: 13-18 Yrs Old ; Tonsillectomy ; Mortality ; Dengue ; Severe Dengue ; Dengue Hemorrhagic Fever


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