1.Association of microRNA gene polymorphisms with risk, clinicopathological characteristics and therapeutical efficacy among Chinese patients with Crohn's disease.
Yanlun ZHANG ; Xiaoxiao SHAO ; Daopo LIN ; Yuan XU ; Guolong MA ; Yi JIANG
Chinese Journal of Medical Genetics 2026;43(2):111-122
OBJECTIVE:
To assess the association of microribonucleic acid (miRNA) gene polymorphisms with the risk and clinicopathological characteristics of Crohn's disease (CD) and the influence of miRNA gene variants on the response to ustekinumab (UST) treatment among CD patients.
METHODS:
From January 2018 to February 2025, 312 patients diagnosed with CD and 527 gender- and age-matched normal controls were selected as the study subjects at the Department of Gastroenterology of the Second Affiliated Hospital of Wenzhou Medical University. Genotypes of miR-155 (rs767649), miR-21 (rs13137), miR-124 (rs531564) and miR-146a (rs57095329, rs2431697) were determined with multiplex polymerase chain reaction-ligase detection reaction (PCR-LDR) technique. The patients were divided into different subgroups according to the Montreal Classification Criteria for CD. Harvey-Bradshaw index (HBI) and simplified endoscopic score for CD were respectively applied to assess the clinical and endoscopic disease activity of CD. Unconditional logistic regression model was employed to analyze the distribution of miRNA gene polymorphisms between the two groups, as well as their influence on the clinicopathological characteristics of CD patients. Among them, 185 CD patients received first-line UST treatment, with the first sufficient dose of UST (6 mg/kg) administered intravenously. Based on the changes in HBI at week 8, the response of patients to UST treatment was evaluated. Unconditional logistic regression model was employed to analyze the distribution of miRNA gene polymorphisms between clinically responsive group (the decline of HBI ≥ 3 scores compared to week 0) and non-responsive group. All of the P values were adjusted by Bonferroni correction. This study has been approved by the Medical Ethics Committee of the Second Affiliated Hospital of Wenzhou Medical University (Ethics No.: 2025-K-12-01).
RESULTS:
No significant difference was found in the distribution of miRNA gene polymorphisms between the two groups (all P > 0.05). The variant genotype (TC+CC) of rs2431697 was more common among patients with terminal ileal-type and ileocolic-type CD than those with the colonic-type CD (OR = 4.98, 95%CI: 1.49~16.68, P = 0.009, adjusted P = 0.045). However, the opposite conclusion was drawn for the homozygous variant genotype (TT) of rs13137 and variant genotype (GC+CC) of rs531564 (OR = 0.37, 95%CI: 0.18~0.76, P = 0.007, adjusted P = 0.035; OR = 0.36, 95%CI: 0.18~0.73, P = 0.004, adjusted P = 0.020). Compared to patients with non-stricturing and penetrating CD, the variant genotype (AG+GG) and variant allele (G) of rs57095329 were more common in those with stricturing and penetrating CD (OR = 4.06, 95%CI: 2.46~6.71, P < 0.001, adjusted P < 0.005; OR = 3.12, 95%CI: 2.06~4.73, P < 0.001, adjusted P < 0.005). However, the frequencies of variant genotype (AT+TT) and variant allele (T) of rs13137 were lower among patients with stricturing and penetrating CD than in those without (OR = 0.25, 95%CI: 0.15~0.41, P < 0.001, adjusted P < 0.005; OR = 0.45, 95%CI: 0.33~0.63, P < 0.001, adjusted P < 0.005). Additionally, the variant genotype (AG+GG) and variant allele (G) of rs57095329 were more common among those with moderately to severely endoscopic activity than those with mildly endoscopic activity (OR = 2.01, 95%CI: 1.19~3.42, P = 0.009, adjusted P = 0.045; OR = 2.04, 95%CI: 1.28~3.25, P = 0.003, adjusted P = 0.015). In total 117 cases had shown clinical response by week 8, while 68 cases showed no response. Compared with t he clinically non-responsive group, the variant genotype (TC+CC) and variant allele (C) of rs2431697 were more common in the clinically responsive group (OR = 3.86, 95%CI: 1.80~8.32, P = 0.001, adjusted P = 0.005; OR = 2.60, 95%CI: 1.34~5.06, P = 0.005, adjusted P = 0.025). However, the variant genotype (TA+AA) of rs767649 was less frequent in the clinically responsive group than the non-responsive group (OR = 0.40, 95%CI: 0.21~0.74, P = 0.004, adjusted P = 0.020). The same conclusion was drawn for the variant genotype (AT+TT) and variant allele (T) of rs13137 when the clinically responsive group was compared with the non-responsive group (OR = 0.30, 95%CI: 0.14~0.63, P = 0.002, adjusted P = 0.010; OR = 0.54, 95%CI: 0.35~0.82, P = 0.005, adjusted P = 0.025).
CONCLUSION
Genetic polymorphisms of miRNAs are not associated with the risk of developing CD. The miR-146a (rs57095329) variant may increase the endoscopic activity of CD and the risk for stenosis or penetration. However, the miR-146a (rs2431697) variant may increase the risk of ileal involvement. The miR-21 (rs13137) variant may reduce the risk of ileal involvement and the risk of stenosis or penetration. The miR-124 (rs531564) variant may reduce the risk of ileal involvement. Among patients receiving UST treatment, the miR-146a (rs2431697) variant may increase the clinical response by week 8. However, both the miR-155 (rs767649) and miR-21 (rs13137) variants may decrease the clinical response by week 8.
Humans
;
MicroRNAs/genetics*
;
Crohn Disease/pathology*
;
Male
;
Female
;
Adult
;
Polymorphism, Single Nucleotide
;
Middle Aged
;
Asian People/genetics*
;
Genetic Predisposition to Disease
;
Genotype
;
Young Adult
;
Case-Control Studies
;
Adolescent
;
East Asian People
2.Hemichorea in the setting of diabetic striatopathy uniquely associated with concurrent myelofibrosis: A case report.
Isabella Chesca P. TAYAG ; Raymond L. ROSALES
Journal of Medicine University of Santo Tomas 2026;10(1):1918-1922
Hemichorea, a hyperkinetic disorder characterized by involuntary, rapid, irregular movements on one side of the body, typically originates from cortical basal ganglia involvement, particularly the striatum. We present a 63-year-old Filipino female with poor glycemic control and known idiopathic myelofibrosis exhibiting chorea-ballism movements in the right distal and proximal extremities. Significant improvement in involuntary movements was observed upon optimal glycemic control and benzodiazepine therapy. This report underscores the noteworthy presentation of uncontrolled hyperglycemia in type 2 diabetes, while highlighting the potential contribution of myelofibrosis.
Human ; Female ; Middle Aged: 45-64 Yrs Old ; Primary Myelofibrosis ; Research Report ; Glycemic Control ; Hyperglycemia ; Diabetes Mellitus, Type 2
3.Use of exam wrapper in internal medicine residency training in two tertiary private hospitals: A pre-experimental study.
Janice Jill K. LAO ; Erlyn A. SANA
Acta Medica Philippina 2026;60(6):51-70
BACKGROUND AND OBJECTIVE
Self-assessment and metacognition can be practiced with an exam wrapper (EW). EW is a structured, metacognitive, and self-regulated learning strategy that involves guided self-reflection on an exam already taken to improve study habits. This research describes how internal medicine (IM) residents at two tertiary private hospitals performed in written examinations using an EW. The relationship between the residents' metacognition, the exam wrapper, and exam performance was also determined.
METHODSThis study employed a pre-experimental pre- and post-test design. The EW was constructed and tested for validity and reliability. It included (1) a description of study habits, (2) accuracy in self-efficacy perception and exam score prediction, (3) perceived reasons for exam mistakes, and (4) future study plans of residents. A complete enumeration of 24 IM residents was conducted. Respondents completed the Metacognitive Awareness Inventory (MAI) at the beginning of the study. The intervention consisted of (1) residents taking Exam 1: Gastroenterology, followed by EW; (2) Exam 2: Endocrinology and EW; then (3) Exam 3: Oncology, EW, and MAI. Scores were compared using a paired t-test or analysis of variance (ANOVA). The relationships between metacognition scores, the EW, and exam performance were determined using the Pearson correlation coefficient. The level of significance was set at p < 0.05.
RESULTSThe final EW comprises 16 items, with overall indices of content validity ratio of 0.72 and item-rated content validity of 0.8. The internal consistency coefficient is 0.65 (Kuder-Richardson 20). Nineteen out of 24 residents (79.17%) completed the study. Mean exam percentage scores were 57.97%, 42%, and 51.16% for Exams 1, 2, and 3, respectively. Exam 2 differed significantly from the other two exams (p = 0 and p = 0.04). EWs for the first two exams were not significantly different and revealed: (1) top study habits included studying right before an exam and skimming the textbook; (2) 68.42% vs. 63.16% accuracy of selfefficacy perception; (3) 26.32% vs. 31.58% accuracy of grade estimation; (4) 31.58% vs. 26.32% accuracy of error analysis; (5) most errors were due to not reading about the topic, and (6) most planned to “read more." Mean MAI scores were 36.79 ± 9.10 (pretest) and 36.05 ± 9.44 (post-test) (p = 0.81). All correlations were not statistically significant.
CONCLUSIONResidents performed poorly during exams, crammed their studies, preferred low-impact learning strategies, and lacked self-reflection skills and metacognition monitoring. Time issues related to reading or studying were common. There is no significant relationship between metacognition score and exam wrapper use or exam performance in IM residency trainees.
Human ; Metacognition ; Self-control ; Self-regulation
4.Research needs in Philippine pharmaceutical sciences: A qualitative perspective from regulatory and clinical research sectors of the pharmaceutical industry.
Imelda G. PENA ; Honeymae C. ALOS ; Nicole Kaye R. CALARA ; Hilary Grace C. PAVIA ; Bryan Paul I BULATAO
Acta Medica Philippina 2026;60(9):7-24
OBJECTIVES
This study aimed to identify problems and highlight opportunities for pharmaceutical sciences research in the Philippine pharmaceutical industry's regulatory and clinical research sectors that might have been previously overlooked or underrepresented. It identified current issues that can be addressed by research covering four areas of pharmaceutical sciences: drug design and discovery, pharmacokinetic/pharmacodynamic studies, formulation design and pharmaceutical technology, and regulatory science.
METHODSA descriptive qualitative approach was used in this study. Data collection was facilitated by key informant interviews (KII) using a standardized interview guide with open-ended questions to identify the pharmaceutical science research needs of the specific sectors. A purposive sampling method was employed, with five key informants (KIs), including the company vice president, director, and top-level managers from different local and multinational pharmaceutical companies. ATLAS.ti software was utilized to facilitate thematic synthesis for qualitative data analysis.
RESULTSThirteen common themes were identified from the KIs, such as (1) incomplete development of therapeutic compounds, (2) sustainability of raw materials supply, (3) regulation of herbal medicines versus food supplements, (4) mapping disease priorities through the Philippine pharmaceutical roadmap, (5) government incentives and policies to support research, (6) technical personnel, (7) suboptimal regulatory process, approvals, and implementation, (8) gap in utilization of acquired knowledge on regulations, (9) regulatory governance, (10) passive regulatory action on counterfeit drugs, (11) PIC/S GMP version 14 adaption, (12) formulation optimization, and (13) active pharmaceutical ingredient (API) sourcing and regulation. Based on insights from the International Pharmaceutical Federation regarding anticipated hurdles in pharmaceutical sciences over the next 5-10 years, priority research needs were identified through KIs' input. Relevant action plans were developed, including the creation of research proposals to isolate, purify, and determine chemical structures of natural products, as well as analyzing recent Philippine Health Statistics to help assess the appropriateness of new drug releases for patient needs. Other action plans include forecasting future disease burdens in the country, performing toxicology studies (Health-Based Evaluation Levels/No Observed Adverse Effect Level or HBEL/NOAEL) for common generic drugs, and ensuring that research efforts are directed toward addressing the Philippine pharmaceutical regulatory and clinical research sector's most pressing needs practically and feasibly.
CONCLUSIONThis study offers valuable insights into pharmaceutical sciences research and development initiatives within the regulatory and clinical research sectors in the Philippine pharmaceutical industry. These findings have the potential to catalyze transformative advancements in healthcare delivery and outcomes, positioning the Philippines for global excellence and competitiveness.
Occupational Groups ; No-observed-adverse-effect Level ; Social Control, Formal ; Patients ; Pharmaceutical Preparations
5.Interprofessional education exposure and attitudes toward collaboration among allied health graduates in the Philippines: A cross-sectional study.
Paolo Miguel P. BULAN ; Nikki Y. PESTAÑO ; Romel V. CABAZOR ; Marelen H. AMANUENCE ; Lois Vanjie G. NAPALIT ; Niño 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.)
6.Infection control practices of dentists in an urbanized city in the Philippines during the COVID-19 pandemic within the period of general community quarantine.
Ma. Chrizel Iana A. MADLANGBAYAN ; Joshua Marcel A. SY ; Melanie Ruth M. KARGANILLA
Acta Medica Philippina 2026;60(9):80-90
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.
Human ; Male ; Female ; Adult: 25-44 Yrs Old ; Middle Aged: 45-64 Yrs Old ; Aged: 65-79 Yrs Old ; World Health Organization ; Residence Characteristics ; Quarantine ; Public Health ; Centers For Disease Control And Prevention (u.s.) ; Covid-19 ; Centers For Disease Control And Prevention, U.s.
7.New strategy and method in traditional Chinese medicine compatibility for detoxification based on component-target-effect interaction.
Zhao-Fang BAI ; Wei SHI ; Yuan GAO ; Jia-Bo WANG ; Xiao-He XIAO
China Journal of Chinese Materia Medica 2025;50(4):853-859
The safety of traditional Chinese medicine(TCM) has always been taken very seriously, and rich and valuable theories and experiences have been developed to ensure the safe and precise use of TCM in clinical practices. In recent years, the cognitive theory of toxicity of TCM, has undergone a profound change. TCM is characterized by the existence of intrinsic toxicity, idiosyncratic toxicity, and indirect toxicity related to organic factors. Therefore, the traditional theories and experiences of TCM, which focus on the prevention and control of intrinsic toxicity, fail to be used for the development of risk prevention and control countermeasures for newly discovered TCM with idiosyncratic toxicity and indirect toxicity. Accordingly, based on the toxicity classification and mechanism characteristics of TCM, this paper proposed a new strategy and method in TCM compatibility for detoxification based on componenttarget-effect interaction. The strategy based on component-target-effect interaction is to carry out TCM compatibility for detoxification by blocking the occurrence of drug-mediated damage and promoting damage repair through component interactions, target interactions,and/or effect interactions. Based on this theory, the paper established a strategy for TCM compatibility that aligned with the cognitive theory of toxicity of TCM, so as to achieve safe and precise use of TCM in clinical practices. The strategy based on component-targeteffect interaction has been exemplarily applied to the development of countermeasures to reduce the toxicity of TCM, including Polygonum Multiflorum, Epimedii Folium, and Psoraleae Fructus, and a new mechanism of Glycyrrhizae Radix et Rhizoma to " harmonize various medicines and detoxify myriad poisons" was illustrated, providing a scientific basis for the safe and precise use of TCM in clinical practice. This paper explained the scientific connotation, application forms, and application examples of componenttarget-effect interaction, aiming to provide a theoretical and methodological basis for guaranteeing the precise use of TCM in clinical practice and innovate the theories and methods of TCM compatibility for detoxification.
Drugs, Chinese Herbal/chemistry*
;
Humans
;
Medicine, Chinese Traditional/methods*
;
Animals
;
Drug-Related Side Effects and Adverse Reactions/prevention & control*
8.Research progress in chemical constituents and pharmacological activities of Abelmoschi Corolla and prediction of its quality markers.
Shi-Han GUAN ; Chang LIU ; Xiao-Tong YAN ; Jin-Wei HAN ; Feng-Ting YIN ; Hui SUN ; Guang-Li YAN ; Ling KONG ; Ying HAN ; Xi-Jun WANG
China Journal of Chinese Materia Medica 2025;50(4):908-921
Abelmoschi Corolla, the dried corolla of Abelmoschus manihot, has anti-inflammatory, antioxidant, and anti-fibrosis activities. Its chemical constituents mainly include flavonoids, organic acids, steroids, and polysaccharides. This study reviewed the research progress in the chemical constituents and pharmacological activities of Abelmoschi Corolla in recent 20 years. According to the concept of quality marker(Q-marker), the Q-markers of Abelmoschi Corolla were predicted from plant phylogeny, chemical constituent specificity, traditional efficacy, chemical constituent measurability, and absorbed constituents. The primary Q-markers for Abelmoschi Corolla were anticipated to include quercetin-3'-O-β-D-glucopyranoside, gossypetin-8-O-β-D-glucuronide, isoquercetin, myricetin,quercetin, and hyperoside, with the aim of providing reference data for improving the quality evaluation system of Abelmoschi Corolla.
Abelmoschus/chemistry*
;
Drugs, Chinese Herbal/pharmacology*
;
Flowers/chemistry*
;
Humans
;
Animals
;
Quality Control
;
Flavonoids/chemistry*
9.Research progress on chemical constituents, pharmacological effects of Rubi Fructus and predictive analysis of its quality markers.
Bao-Song LIU ; Er-Wei YU ; Ying-Ying SUN ; Yao-Yu SONG ; Ke-Han JIANG ; Ya-Gang SONG ; Ming-San MIAO ; Meng-Fan PENG
China Journal of Chinese Materia Medica 2025;50(4):922-933
Rubi Fructus has a long history of medicinal and edible use in China. It contains chemical components such as terpenes, flavonoids, phenolic acids, fatty acids, and alkaloids, and possesses various pharmacological activities, including antioxidant, anti-inflammatory, hypoglycemic, anti-tumor, anti-osteoporosis, and liver-protective effects. Rubi Fructus is widely applied in medical, health, and food fields. The quality of Rubi Fructus can directly affect the safety and effectiveness of clinical medication. Therefore, this article reviews the research progress on the chemical constituents and pharmacological effects of Rubi Fructus. Based on the concept of traditional Chinese medicine(TCM) quality markers(Q-markers), the article explores the screening and determination of Q-markers for Rubi Fructus from various aspects, including plant kinship, traditional efficacy, medicinal properties, measurability of chemical composition, different processing methods, producing areas, harvesting periods, and planting conditions. The components ellagic acid, kaempferol, quercetin, kaempferol-3-O-rutinoside, rutin, astragalin, tiliroside, and hyperoside are preliminarily proposed as Q-markers for Rubi Fructus, providing a reference for the quality control of Rubi Fructus.
Drugs, Chinese Herbal/pharmacology*
;
Humans
;
Rubus/chemistry*
;
Fruit/chemistry*
;
Quality Control
;
Animals
10.Research progress on chemical constituents, pharmacological effects of Anemarrhenae Rhizoma and predictive analysis of its quality markers.
Wen-Jun WANG ; Ze-Min YANG ; An LIU ; Li-Dong SHAO ; Jin-Tang CHENG
China Journal of Chinese Materia Medica 2025;50(4):934-945
Anemarrhenae Rhizoma is bitter, sweet, and cold in nature, and has the effects of clearing heat, dispelling fire, nourishing Yin, and moisturizing dryness. It is associated with the lung, stomach, and kidney meridians, and is mainly distributed in the northwestern and northern regions of China. Modern research has shown that Anemarrhenae Rhizoma contains various chemical active constituents, including steroidal saponins, flavonoids, polysaccharides, lignans, volatile oils, and alkaloids. These constituents exhibit pharmacological effects such as anti-tumor, hypoglycemic, anti-inflammatory, and neuroprotective activities. However, there have been few comprehensive summaries of Anemarrhenae Rhizoma in recent years, which has limited its in-depth research and development. The complexity of traditional Chinese medicine constituents, along with their quality and efficacy, is easily influenced by processing, preparation, and the growing environment and resource distribution. This paper summarizes the resources, chemical constituents, and pharmacological effects of Anemarrhenae Rhizoma, and predicts its quality markers(Q-markers) from several aspects, including the specificity of chemical composition, properties related to preparation and active ingredients, measurability of chemical components, compounding environment, construction of the ″active ingredient-target″ network pathway, and differences in active ingredient content from different origins and parts. These predicted Q-markers may provide a basis for improving the quality evaluation system of Anemarrhenae Rhizoma.
Anemarrhena/chemistry*
;
Drugs, Chinese Herbal/pharmacology*
;
Rhizome/chemistry*
;
Humans
;
Animals
;
Quality Control


Result Analysis
Print
Save
E-mail