Christine Joyce Flores Rejano

Ms. Christine Joyce Flores Rejano

orcid

Research Focus & Metrics

Academic Career Length

4Years (2023-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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25 October 2023 in Molecules
Verified
Journal Article
Open access
PDF file
SHShu-Ming Huang
Shu-Ming Huang
CCCheng-Hung Chuang
Cheng-Hung Chuang
CRChristine Joyce Flores Rejano
Christine Joyce Flores Rejano
LTLemmuel Tayo
Lemmuel Tayo
CHCheng-Yang Hsieh
Cheng-Yang Hsieh
TSAI PO-WEITSAI PO-WEI
TSAI PO-WEI
Diabetes is a chronic metabolic disease characterized by improperly regulating proteins, carbohydrates, and lipids due to insulin deficiency or resistance. The increasing prevalence of diabetes poses a tremendous socioeconomic burden worldwide, resulting in the rise of many studies on Chinese herbal medicines to discover the most effective cure for diabetes. Sesame seeds are among these Chinese herbal medicines that were found to contain various pharmacological activities, including antioxidant and anti-inflammatory properties, lowering cholesterol, improving liver function, blood pressure and sugar lowering, regulating lipid synthesis, and anticancer activities. These medicinal benefits are attributed to sesamin, which is the main lignan found in sesame seeds and oil. In this study, Wistar rat models were induced with type 2 diabetes using streptozotocin (STZ) and nicotinamide, and the effect of sesamin on the changes in body weight, blood sugar level, glycosylated hemoglobin (HbA1c), insulin levels, and the states of the pancreas and liver of the rats were evaluated. The results indicate a reduced blood glucose level, HbA1c, TG, and ALT and AST enzymes after sesamin treatment, while increased insulin level, SOD, CAT, and GPx activities were also observed. These findings prove sesamin’s efficacy in ameliorating the symptoms of diabetes through its potent pharmacological activities.

27 October 2023 in Journal of the Taiwan Institute of Chemical Engineers
Verified
Journal Article
Closed access
CRChristine Joyce Flores Rejano
Christine Joyce Flores Rejano
BCBor-Yann Chen
Bor-Yann Chen
GSGilbert S. Sobremisana
Gilbert S. Sobremisana
LTLemmuel L. Tayo
Lemmuel L. Tayo
KWKun-Teng Wang
Kun-Teng Wang
TSAI PO-WEITSAI PO-WEI
TSAI PO-WEI

19 October 2023 in Letters in Drug Design & Discovery
Verified
Journal Article
Closed access
PDF file
CRChristine Joyce Flores Rejano
Christine Joyce Flores Rejano
LTLemmuel L. Tayo
Lemmuel L. Tayo
BCBor-yann Chen
Bor-yann Chen
TSAI PO-WEITSAI PO-WEI
TSAI PO-WEI
Introduction: Parkinson’s disease (PD) is a prevalent neurological disease characterized by the gradual degeneration of dopaminergic neurons leading to a dysfunctional central nervous system. Recently, major metabolites of Coffea arabica leaves were revealed to exhibit good electronshuttling potential in Microbial Fuel Cells (MFCs), similar to neurotransmitters dopamine and epinephrine. Objective: This In silico study aimed to identify the neuroprotective potentials of plant metabolites from coffee leaves and to determine their physicochemical and pharmacokinetic properties for developing viable anti-parkinsonian drug design. Methods: Molecular docking was performed to evaluate the affinity of identified major compounds in C. arabica against PD-target proteins and compare the results with the binding activity of existing drugs and natural ligands of the identified protein targets via LibDock scores. The druglikeness and ADMET profiles of each ligand were also evaluated using bioinformatics tools. Results: C. arabica metabolites exhibited various degrees of binding activity against PD targets. LibDock scores of test compounds showed that catechin, mangiferin, and chlorogenic acid exhibited higher docking scores than dopamine and levodopa. Physicochemical and pharmacokinetics analysis of the selected molecules revealed caffeine, catechin, and chlorogenic acid as promising candidates for drug development with a low risk of drug toxicity. Conclusion: The present study indicates that Coffea arabica leaves contain promising neuroprotective active compounds against Parkinson’s disease.

18 July 2025 in Processes
Verified
Journal Article
Open access
PDF file
GSGilbert Solas Sobremisana
Gilbert Solas Sobremisana
TSAI PO-WEITSAI PO-WEI
TSAI PO-WEI
CRChristine Joyce Flores Rejano
Christine Joyce Flores Rejano
LTLemmuel Tayo
Lemmuel Tayo
CHChung-Chuan Hsueh
Chung-Chuan Hsueh
BCBor-yann Chen
Bor-yann Chen
Oxidative stress overwhelms cellular antioxidant defenses, causing DNA damage and pro-tumorigenic signaling that accelerate cancer initiation and progression. Electron shuttles (ESs) from phytocompounds offer precise redox control but lack quantitative benchmarks. This study aims to give a clearer definition to electron shuttles by characterizing mulberry’s electrochemical capabilities via the three defined ES criteria and deciphering its mechanism against oxidative stress-related cancer. Using double-chambered microbial-fuel-cell power metrics, cyclic voltammetry, and compartmental fermentation modeling, we show that anthocyanin shows a significant difference (p < 0.05) in power density at ≥500 µg/mL (maximum of 2.06-fold power-density increase) and reversible redox cycling (ratio = 1.65), retaining >90% activity over four fermentation cycles. Molecular docking implicates meta-dihydroxyl motifs within the core scaffold in receptor binding, overturning the view that only ortho- and para-substituents participate in bioactivity. In vitro, anthocyanins both inhibit nitric oxide release and reduce DU-145 cell viability dose-dependently. Overall, our findings establish mulberry anthocyanins as robust electron shuttles with potential for integration into large-scale bio-electrochemical platforms and targeted redox-based cancer therapies.

28 April 2025 in Biology
Verified
Journal Article
Open access
RFRegineil A. Ferrer
Regineil A. Ferrer
BCBor-yann Chen
Bor-yann Chen
JGJon Patrick T. Garcia
Jon Patrick T. Garcia
CRChristine Joyce Flores Rejano
Christine Joyce Flores Rejano
TSAI PO-WEITSAI PO-WEI
TSAI PO-WEI
LTLemmuel Tayo
Lemmuel Tayo
OT has gained attention for its high polyphenol content and therapeutic potential. To elucidate this further, this study investigated the electron-shuttling bioactive compounds of OT and evaluated their effect on dysregulated breast cancer (BC) genes. OT extracts were obtained via solvent extraction (SE) and supercritical fluid extraction (SFE), followed by in vitro assays. Phytochemical analysis revealed that ethanol-extracted OT (OTL-E) had the highest polyphenol, flavonoid, and tannin contents, correlating with strong antioxidant activity, while water-extracted OT (OTL-W) exhibited greater bioelectricity-stimulating properties in microbial fuel cells (MFC), confirmed by cyclic voltammetry (CV). Based on phytochemical analyses, SE displayed a better extraction technique for isolating OT bioactive compounds compared to SFE. In silico approaches through network pharmacology, molecular docking and dynamics simulations revealed that polyphenols with ortho- or para-dihydroxyl groups targeted dysregulated BC proteins involved in kinase signaling, apoptosis, and hormone receptor pathways. Luteolin exhibited the highest binding affinities to MAPK1 and PIK3CA with free energy (ΔG) of −9.1 and −8.4 kcal/mol, respectively. Trajectory-based analyses confirmed enthalpy-favored ligand-induced conformational changes to these oncoproteins, altering their function in BC development. These findings suggest the potential of OT as a bioelectricity-stimulating and chemopreventive agent, warranting further in vitro and in vivo validation.

28 April 2026 in In Silico Pharmacology
Verified
Journal Article
Closed access
JGJon Patrick T. Garcia
Jon Patrick T. Garcia
Brian Harvey Avanceña VillanuevaBrian Harvey Avanceña Villanueva
Brian Harvey Avanceña Villanueva
CRChristine Joyce Flores Rejano
Christine Joyce Flores Rejano
MGMike Anthony D. Ganzon
Mike Anthony D. Ganzon
JLJay Marie V. Lumantas
Jay Marie V. Lumantas
YGYmir M. Garcia
Ymir M. Garcia